Merge branch 'master' into rotating-key

Conflicts:
	ethcore/src/account_provider/mod.rs
	rpc/src/v1/types/mod.rs.in

.gitlab-ci.yml

@@ -20,7 +20,7 @@ linux-stable:
     - stable
     - triggers
   script:
-    - cargo build --release $CARGOFLAGS
+    - cargo build -j $(nproc) --release $CARGOFLAGS
     - strip target/release/parity
     - md5sum target/release/parity > parity.md5
     - sh scripts/deb-build.sh amd64
@@ -52,7 +52,7 @@ linux-beta:
     - stable
     - triggers
   script:
-    - cargo build --release $CARGOFLAGS
+    - cargo build -j $(nproc) --release $CARGOFLAGS
     - strip target/release/parity
   tags:
     - rust
@@ -71,7 +71,7 @@ linux-nightly:
     - stable
     - triggers
   script:
-    - cargo build --release $CARGOFLAGS
+    - cargo build -j $(nproc) --release $CARGOFLAGS
     - strip target/release/parity
   tags:
     - rust
@@ -92,7 +92,7 @@ linux-centos:
   script:
     - export CXX="g++"
     - export CC="gcc"
-    - cargo build --release $CARGOFLAGS
+    - cargo build -j $(nproc) --release $CARGOFLAGS
     - strip target/release/parity
     - md5sum target/release/parity > parity.md5
     - aws configure set aws_access_key_id $s3_key
@@ -119,7 +119,7 @@ linux-i686:
   script:
     - export HOST_CC=gcc
     - export HOST_CXX=g++
-    - cargo build --target i686-unknown-linux-gnu --release $CARGOFLAGS
+    - cargo build -j $(nproc) --target i686-unknown-linux-gnu --release $CARGOFLAGS
     - strip target/i686-unknown-linux-gnu/release/parity
     - md5sum target/i686-unknown-linux-gnu/release/parity > parity.md5
     - sh scripts/deb-build.sh i386
@@ -161,7 +161,7 @@ linux-armv7:
     - echo "[target.armv7-unknown-linux-gnueabihf]" >> .cargo/config
     - echo "linker= \"arm-linux-gnueabihf-gcc\"" >> .cargo/config
     - cat .cargo/config
-    - cargo build --target armv7-unknown-linux-gnueabihf --release $CARGOFLAGS
+    - cargo build -j $(nproc) --target armv7-unknown-linux-gnueabihf --release $CARGOFLAGS
     - arm-linux-gnueabihf-strip target/armv7-unknown-linux-gnueabihf/release/parity
     - md5sum target/armv7-unknown-linux-gnueabihf/release/parity > parity.md5
     - sh scripts/deb-build.sh armhf
@@ -203,7 +203,7 @@ linux-arm:
     - echo "[target.arm-unknown-linux-gnueabihf]" >> .cargo/config
     - echo "linker= \"arm-linux-gnueabihf-gcc\"" >> .cargo/config
     - cat .cargo/config
-    - cargo build --target arm-unknown-linux-gnueabihf --release $CARGOFLAGS
+    - cargo build -j $(nproc) --target arm-unknown-linux-gnueabihf --release $CARGOFLAGS
     - arm-linux-gnueabihf-strip target/arm-unknown-linux-gnueabihf/release/parity
     - md5sum target/arm-unknown-linux-gnueabihf/release/parity > parity.md5
     - sh scripts/deb-build.sh armhf
@@ -245,7 +245,7 @@ linux-armv6:
     - echo "[target.arm-unknown-linux-gnueabi]" >> .cargo/config
     - echo "linker= \"arm-linux-gnueabi-gcc\"" >> .cargo/config
     - cat .cargo/config
-    - cargo build --target arm-unknown-linux-gnueabi --release $CARGOFLAGS
+    - cargo build -j $(nproc) --target arm-unknown-linux-gnueabi --release $CARGOFLAGS
     - arm-linux-gnueabi-strip target/arm-unknown-linux-gnueabi/release/parity
     - md5sum target/arm-unknown-linux-gnueabi/release/parity > parity.md5
     - aws configure set aws_access_key_id $s3_key
@@ -280,7 +280,7 @@ linux-aarch64:
     - echo "[target.aarch64-unknown-linux-gnu]" >> .cargo/config
     - echo "linker= \"aarch64-linux-gnu-gcc\"" >> .cargo/config
     - cat .cargo/config
-    - cargo build --target aarch64-unknown-linux-gnu --release $CARGOFLAGS
+    - cargo build -j $(nproc) --target aarch64-unknown-linux-gnu --release $CARGOFLAGS
     - aarch64-linux-gnu-strip target/aarch64-unknown-linux-gnu/release/parity
     - md5sum target/aarch64-unknown-linux-gnu/release/parity > parity.md5
     - sh scripts/deb-build.sh arm64
@@ -312,8 +312,8 @@ darwin:
     - stable
     - triggers
   script:
-    - cargo build --release -p ethstore $CARGOFLAGS
+    - cargo build -j 8 --release -p ethstore #$CARGOFLAGS
-    - cargo build --release $CARGOFLAGS
+    - cargo build -j 8 --release #$CARGOFLAGS
     - rm -rf parity.md5
     - md5sum target/release/parity > parity.md5
     - packagesbuild -v mac/Parity.pkgproj
@@ -350,7 +350,7 @@ windows:
     - set RUST_BACKTRACE=1
     - set RUSTFLAGS=%RUSTFLAGS% 
     - rustup default stable-x86_64-pc-windows-msvc
-    - cargo build --release %CARGOFLAGS%
+    - cargo build -j 8 --release #%CARGOFLAGS%
     - curl -sL --url "https://github.com/ethcore/win-build/raw/master/SimpleFC.dll" -o nsis\SimpleFC.dll
     - curl -sL --url "https://github.com/ethcore/win-build/raw/master/vc_redist.x64.exe" -o nsis\vc_redist.x64.exe
     - signtool sign /f %keyfile% /p %certpass% target\release\parity.exe
@@ -401,7 +401,7 @@ test-darwin:
     - git submodule update --init --recursive
   script:
     - export RUST_BACKTRACE=1
-    - ./test.sh $CARGOFLAGS --no-release
+    - ./test.sh $CARGOFLAGS
   tags:
     - osx
   allow_failure: true
@@ -413,7 +413,7 @@ test-windows:
     - git submodule update --init --recursive
   script:
     - set RUST_BACKTRACE=1
-    - cargo test --features json-tests -p rlp -p ethash -p ethcore -p ethcore-bigint -p ethcore-dapps -p ethcore-rpc -p ethcore-signer -p ethcore-util -p ethcore-network -p ethcore-io -p ethkey -p ethstore -p ethsync -p ethcore-ipc -p ethcore-ipc-tests -p ethcore-ipc-nano -p parity %CARGOFLAGS% --verbose --release
+    - cargo -j 8 test --features json-tests -p rlp -p ethash -p ethcore -p ethcore-bigint -p ethcore-dapps -p ethcore-rpc -p ethcore-signer -p ethcore-util -p ethcore-network -p ethcore-io -p ethkey -p ethstore -p ethsync -p ethcore-ipc -p ethcore-ipc-tests -p ethcore-ipc-nano -p parity %CARGOFLAGS% --verbose --release
   tags:
     - rust-windows
   allow_failure: true
@@ -428,7 +428,7 @@ test-rust-stable:
   script:
     - export RUST_BACKTRACE=1
     - echo $JS_FILES_MODIFIED
-    - if [ "$JS_FILES_MODIFIED" = 0 ]; then echo "skip js test"&./test.sh $CARGOFLAGS --no-release; else echo "skip rust test"&./js/scripts/lint.sh&./js/scripts/test.sh&./js/scripts/build.sh; fi
+    - if [ "$JS_FILES_MODIFIED" = 0 ]; then echo "skip js test"&./test.sh $CARGOFLAGS; else echo "skip rust test"&./js/scripts/lint.sh&./js/scripts/test.sh&./js/scripts/build.sh; fi
   tags:
     - rust
     - rust-stable
@@ -457,7 +457,7 @@ test-rust-beta:
   script:
     - export RUST_BACKTRACE=1
     - echo $JS_FILES_MODIFIED
-    - ./test.sh $CARGOFLAGS --no-release
+    - ./test.sh $CARGOFLAGS
   tags:
     - rust
     - rust-beta
@@ -471,7 +471,7 @@ test-rust-nightly:
     - git submodule update --init --recursive
   script:
     - export RUST_BACKTRACE=1
-    - ./test.sh $CARGOFLAGS --no-release
+    - ./test.sh $CARGOFLAGS
   tags:
     - rust
     - rust-nightly

.travis.yml

@@ -16,7 +16,7 @@ git:
 matrix:
   include:
   - rust: stable
-    env: RUN_TESTS="true" TEST_OPTIONS="--no-release"
+    env: RUN_TESTS="true" TEST_OPTIONS=""
   - rust: stable
     env: RUN_COVERAGE="true"
   - rust: stable
@@ -71,8 +71,7 @@ install:
 script:
   - if [ "$RUN_TESTS" = "true" ]; then
       ./js/scripts/lint.sh &&
-      ./js/scripts/test.sh &&
+      travis_wait 40 ./test.sh $TEST_OPTIONS;
-      ./test.sh $TEST_OPTIONS --verbose;
     fi
   - if [ "$RUN_COVERAGE" = "true" ]; then ./scripts/cov.sh "$KCOV_CMD"; fi
 

Cargo.lock

@@ -10,24 +10,23 @@ dependencies = [
  "env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethcore 1.5.0",
  "ethcore-dapps 1.5.0",
- "ethcore-devtools 1.4.0",
+ "ethcore-devtools 1.5.0",
  "ethcore-hash-fetch 1.5.0",
  "ethcore-io 1.5.0",
- "ethcore-ipc 1.4.0",
+ "ethcore-ipc 1.5.0",
- "ethcore-ipc-codegen 1.4.0",
+ "ethcore-ipc-codegen 1.5.0",
  "ethcore-ipc-hypervisor 1.2.0",
- "ethcore-ipc-nano 1.4.0",
+ "ethcore-ipc-nano 1.5.0",
  "ethcore-ipc-tests 0.1.0",
  "ethcore-logger 1.5.0",
  "ethcore-rpc 1.5.0",
  "ethcore-signer 1.5.0",
- "ethcore-stratum 1.4.0",
+ "ethcore-stratum 1.5.0",
  "ethcore-util 1.5.0",
  "ethsync 1.5.0",
- "fdlimit 0.1.0",
+ "fdlimit 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.9.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "isatty 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "json-ipc-server 0.2.4 (git+https://github.com/ethcore/json-ipc-server.git)",
  "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -175,6 +174,15 @@ dependencies = [
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "cookie"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "crossbeam"
 version = "0.2.9"
@@ -265,7 +273,7 @@ dependencies = [
 
 [[package]]
 name = "ethash"
-version = "1.4.0"
+version = "1.5.0"
 dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -283,20 +291,20 @@ dependencies = [
  "clippy 0.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethash 1.4.0",
+ "ethash 1.5.0",
  "ethcore-bloom-journal 0.1.0",
- "ethcore-devtools 1.4.0",
+ "ethcore-devtools 1.5.0",
  "ethcore-io 1.5.0",
- "ethcore-ipc 1.4.0",
+ "ethcore-ipc 1.5.0",
- "ethcore-ipc-codegen 1.4.0",
+ "ethcore-ipc-codegen 1.5.0",
- "ethcore-ipc-nano 1.4.0",
+ "ethcore-ipc-nano 1.5.0",
  "ethcore-util 1.5.0",
  "ethjson 0.1.0",
  "ethkey 0.2.0",
  "ethstore 0.1.0",
- "evmjit 1.4.0",
+ "evmjit 1.5.0",
  "heapsize 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.9.4 (git+https://github.com/ethcore/hyper)",
+ "hyper 0.10.0-a.0 (git+https://github.com/ethcore/hyper)",
  "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "linked-hash-map 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -335,20 +343,20 @@ version = "1.5.0"
 dependencies = [
  "clippy 0.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-devtools 1.4.0",
+ "ethcore-devtools 1.5.0",
  "ethcore-hash-fetch 1.5.0",
  "ethcore-rpc 1.5.0",
  "ethcore-util 1.5.0",
  "fetch 0.1.0",
- "hyper 0.9.4 (git+https://github.com/ethcore/hyper)",
+ "hyper 0.10.0-a.0 (git+https://github.com/ethcore/hyper)",
- "jsonrpc-core 3.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 4.0.0 (git+https://github.com/ethcore/jsonrpc.git)",
- "jsonrpc-http-server 6.1.1 (git+https://github.com/ethcore/jsonrpc-http-server.git)",
+ "jsonrpc-http-server 6.1.1 (git+https://github.com/ethcore/jsonrpc.git)",
  "linked-hash-map 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime_guess 1.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-dapps-glue 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "parity-ui 1.4.0",
+ "parity-ui 1.5.0",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 0.8.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -362,7 +370,7 @@ dependencies = [
 
 [[package]]
 name = "ethcore-devtools"
-version = "1.4.0"
+version = "1.5.0"
 dependencies = [
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -392,9 +400,9 @@ dependencies = [
 
 [[package]]
 name = "ethcore-ipc"
-version = "1.4.0"
+version = "1.5.0"
 dependencies = [
- "ethcore-devtools 1.4.0",
+ "ethcore-devtools 1.5.0",
  "ethcore-util 1.5.0",
  "nanomsg 0.5.1 (git+https://github.com/ethcore/nanomsg.rs.git)",
  "semver 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -402,7 +410,7 @@ dependencies = [
 
 [[package]]
 name = "ethcore-ipc-codegen"
-version = "1.4.0"
+version = "1.5.0"
 dependencies = [
  "aster 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "quasi 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -415,9 +423,9 @@ dependencies = [
 name = "ethcore-ipc-hypervisor"
 version = "1.2.0"
 dependencies = [
- "ethcore-ipc 1.4.0",
+ "ethcore-ipc 1.5.0",
- "ethcore-ipc-codegen 1.4.0",
+ "ethcore-ipc-codegen 1.5.0",
- "ethcore-ipc-nano 1.4.0",
+ "ethcore-ipc-nano 1.5.0",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "nanomsg 0.5.1 (git+https://github.com/ethcore/nanomsg.rs.git)",
  "semver 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -426,9 +434,9 @@ dependencies = [
 
 [[package]]
 name = "ethcore-ipc-nano"
-version = "1.4.0"
+version = "1.5.0"
 dependencies = [
- "ethcore-ipc 1.4.0",
+ "ethcore-ipc 1.5.0",
  "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "nanomsg 0.5.1 (git+https://github.com/ethcore/nanomsg.rs.git)",
@@ -438,10 +446,10 @@ dependencies = [
 name = "ethcore-ipc-tests"
 version = "0.1.0"
 dependencies = [
- "ethcore-devtools 1.4.0",
+ "ethcore-devtools 1.5.0",
- "ethcore-ipc 1.4.0",
+ "ethcore-ipc 1.5.0",
- "ethcore-ipc-codegen 1.4.0",
+ "ethcore-ipc-codegen 1.5.0",
- "ethcore-ipc-nano 1.4.0",
+ "ethcore-ipc-nano 1.5.0",
  "ethcore-util 1.5.0",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "nanomsg 0.5.1 (git+https://github.com/ethcore/nanomsg.rs.git)",
@@ -467,7 +475,7 @@ version = "1.5.0"
 dependencies = [
  "ansi_term 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "bytes 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-devtools 1.4.0",
+ "ethcore-devtools 1.5.0",
  "ethcore-io 1.5.0",
  "ethcore-util 1.5.0",
  "ethcrypto 0.1.0",
@@ -491,11 +499,11 @@ name = "ethcore-rpc"
 version = "1.5.0"
 dependencies = [
  "clippy 0.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethash 1.4.0",
+ "ethash 1.5.0",
  "ethcore 1.5.0",
- "ethcore-devtools 1.4.0",
+ "ethcore-devtools 1.5.0",
  "ethcore-io 1.5.0",
- "ethcore-ipc 1.4.0",
+ "ethcore-ipc 1.5.0",
  "ethcore-util 1.5.0",
  "ethcrypto 0.1.0",
  "ethjson 0.1.0",
@@ -503,9 +511,9 @@ dependencies = [
  "ethstore 0.1.0",
  "ethsync 1.5.0",
  "fetch 0.1.0",
- "json-ipc-server 0.2.4 (git+https://github.com/ethcore/json-ipc-server.git)",
+ "jsonrpc-core 4.0.0 (git+https://github.com/ethcore/jsonrpc.git)",
- "jsonrpc-core 3.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-http-server 6.1.1 (git+https://github.com/ethcore/jsonrpc.git)",
- "jsonrpc-http-server 6.1.1 (git+https://github.com/ethcore/jsonrpc-http-server.git)",
+ "jsonrpc-ipc-server 0.2.4 (git+https://github.com/ethcore/jsonrpc.git)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rlp 0.1.0",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -522,14 +530,14 @@ version = "1.5.0"
 dependencies = [
  "clippy 0.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-devtools 1.4.0",
+ "ethcore-devtools 1.5.0",
  "ethcore-io 1.5.0",
  "ethcore-rpc 1.5.0",
  "ethcore-util 1.5.0",
- "jsonrpc-core 3.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 4.0.0 (git+https://github.com/ethcore/jsonrpc.git)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-dapps-glue 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "parity-ui 1.4.0",
+ "parity-ui 1.5.0",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "ws 0.5.3 (git+https://github.com/ethcore/ws-rs.git?branch=mio-upstream-stable)",
@@ -537,16 +545,16 @@ dependencies = [
 
 [[package]]
 name = "ethcore-stratum"
-version = "1.4.0"
+version = "1.5.0"
 dependencies = [
  "env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-devtools 1.4.0",
+ "ethcore-devtools 1.5.0",
- "ethcore-ipc 1.4.0",
+ "ethcore-ipc 1.5.0",
- "ethcore-ipc-codegen 1.4.0",
+ "ethcore-ipc-codegen 1.5.0",
- "ethcore-ipc-nano 1.4.0",
+ "ethcore-ipc-nano 1.5.0",
  "ethcore-util 1.5.0",
- "json-tcp-server 0.1.0 (git+https://github.com/ethcore/json-tcp-server)",
+ "jsonrpc-core 4.0.0 (git+https://github.com/ethcore/jsonrpc.git)",
- "jsonrpc-core 3.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-tcp-server 0.1.0 (git+https://github.com/ethcore/jsonrpc.git)",
  "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.5.1 (git+https://github.com/ethcore/mio?branch=v0.5.x)",
@@ -565,7 +573,7 @@ dependencies = [
  "eth-secp256k1 0.5.4 (git+https://github.com/ethcore/rust-secp256k1)",
  "ethcore-bigint 0.1.2",
  "ethcore-bloom-journal 0.1.0",
- "ethcore-devtools 1.4.0",
+ "ethcore-devtools 1.5.0",
  "heapsize 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "itertools 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -653,9 +661,9 @@ dependencies = [
  "env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethcore 1.5.0",
  "ethcore-io 1.5.0",
- "ethcore-ipc 1.4.0",
+ "ethcore-ipc 1.5.0",
- "ethcore-ipc-codegen 1.4.0",
+ "ethcore-ipc-codegen 1.5.0",
- "ethcore-ipc-nano 1.4.0",
+ "ethcore-ipc-nano 1.5.0",
  "ethcore-network 1.5.0",
  "ethcore-util 1.5.0",
  "heapsize 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -669,14 +677,15 @@ dependencies = [
 
 [[package]]
 name = "evmjit"
-version = "1.4.0"
+version = "1.5.0"
 dependencies = [
  "tiny-keccak 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "fdlimit"
-version = "0.1.0"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -686,7 +695,7 @@ name = "fetch"
 version = "0.1.0"
 dependencies = [
  "https-fetch 0.1.0",
- "hyper 0.9.4 (git+https://github.com/ethcore/hyper)",
+ "hyper 0.10.0-a.0 (git+https://github.com/ethcore/hyper)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -748,27 +757,6 @@ dependencies = [
  "rustls 0.1.2 (git+https://github.com/ctz/rustls)",
 ]
 
-[[package]]
-name = "hyper"
-version = "0.9.4"
-source = "git+https://github.com/ethcore/hyper#9e346c1d4bc30cd4142dea9d8a0b117d30858ca4"
-dependencies = [
- "cookie 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "httparse 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "mime 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rotor 0.6.3 (git+https://github.com/ethcore/rotor)",
- "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "spmc 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
- "traitobject 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicase 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "vecio 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "hyper"
 version = "0.9.10"
@@ -789,6 +777,25 @@ dependencies = [
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "hyper"
+version = "0.10.0-a.0"
+source = "git+https://github.com/ethcore/hyper#7d4f7fa0baddcb2b0c523f7c05855d67de94fe88"
+dependencies = [
+ "cookie 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "httparse 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mime 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rotor 0.6.3 (git+https://github.com/ethcore/rotor)",
+ "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "spmc 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicase 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "vecio 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "idna"
 version = "0.1.0"
@@ -831,39 +838,10 @@ name = "itoa"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "json-ipc-server"
-version = "0.2.4"
-source = "git+https://github.com/ethcore/json-ipc-server.git#4642cd03ec1d23db89df80d22d5a88e7364ab885"
-dependencies = [
- "bytes 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-core 3.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "miow 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "slab 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "json-tcp-server"
-version = "0.1.0"
-source = "git+https://github.com/ethcore/json-tcp-server#c2858522274ae56042472bb5d22845a1b85e5338"
-dependencies = [
- "bytes 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "jsonrpc-core 3.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "slab 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "jsonrpc-core"
-version = "3.0.2"
+version = "4.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+source = "git+https://github.com/ethcore/jsonrpc.git#1500da1b9613a0a17fc0109d825f3ccc60199a53"
 dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -875,14 +853,44 @@ dependencies = [
 [[package]]
 name = "jsonrpc-http-server"
 version = "6.1.1"
-source = "git+https://github.com/ethcore/jsonrpc-http-server.git#cd6d4cb37d672cc3057aecd0692876f9e85f3ba5"
+source = "git+https://github.com/ethcore/jsonrpc.git#1500da1b9613a0a17fc0109d825f3ccc60199a53"
 dependencies = [
- "hyper 0.9.4 (git+https://github.com/ethcore/hyper)",
+ "hyper 0.10.0-a.0 (git+https://github.com/ethcore/hyper)",
- "jsonrpc-core 3.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 4.0.0 (git+https://github.com/ethcore/jsonrpc.git)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "jsonrpc-ipc-server"
+version = "0.2.4"
+source = "git+https://github.com/ethcore/jsonrpc.git#1500da1b9613a0a17fc0109d825f3ccc60199a53"
+dependencies = [
+ "bytes 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 4.0.0 (git+https://github.com/ethcore/jsonrpc.git)",
+ "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miow 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "slab 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "jsonrpc-tcp-server"
+version = "0.1.0"
+source = "git+https://github.com/ethcore/jsonrpc.git#1500da1b9613a0a17fc0109d825f3ccc60199a53"
+dependencies = [
+ "bytes 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jsonrpc-core 4.0.0 (git+https://github.com/ethcore/jsonrpc.git)",
+ "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "slab 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "kernel32-sys"
 version = "0.2.2"
@@ -1246,7 +1254,7 @@ dependencies = [
 
 [[package]]
 name = "parity-ui"
-version = "1.4.0"
+version = "1.5.0"
 dependencies = [
  "parity-ui-dev 1.4.0",
  "parity-ui-precompiled 1.4.0 (git+https://github.com/ethcore/js-precompiled.git)",
@@ -1263,7 +1271,7 @@ dependencies = [
 [[package]]
 name = "parity-ui-precompiled"
 version = "1.4.0"
-source = "git+https://github.com/ethcore/js-precompiled.git#cb6836dddf8c9951e056283dcd9e105e97923d07"
+source = "git+https://github.com/ethcore/js-precompiled.git#1bf7160f6c8f25353d790dbd0935560d3d395727"
 dependencies = [
  "parity-dapps-glue 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1503,11 +1511,12 @@ dependencies = [
 [[package]]
 name = "rotor"
 version = "0.6.3"
-source = "git+https://github.com/ethcore/rotor#e63d45137b2eb66d1e085a7c6321a5db8b187576"
+source = "git+https://github.com/ethcore/rotor#c1a2dd0046c5ea2517a5b637fca8ee2e77021e82"
 dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.5.1 (git+https://github.com/ethcore/mio?branch=v0.5.x)",
+ "mio 0.6.1 (git+https://github.com/ethcore/mio)",
  "quick-error 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "slab 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2008,6 +2017,7 @@ dependencies = [
 "checksum clippy 0.0.103 (registry+https://github.com/rust-lang/crates.io-index)" = "5b4fabf979ddf6419a313c1c0ada4a5b95cfd2049c56e8418d622d27b4b6ff32"
 "checksum clippy_lints 0.0.103 (registry+https://github.com/rust-lang/crates.io-index)" = "ce96ec05bfe018a0d5d43da115e54850ea2217981ff0f2e462780ab9d594651a"
 "checksum cookie 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "90266f45846f14a1e986c77d1e9c2626b8c342ed806fe60241ec38cc8697b245"
+"checksum cookie 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d53b80dde876f47f03cda35303e368a79b91c70b0d65ecba5fd5280944a08591"
 "checksum crossbeam 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)" = "fb974f835e90390c5f9dfac00f05b06dc117299f5ea4e85fbc7bb443af4911cc"
 "checksum ctrlc 1.1.1 (git+https://github.com/ethcore/rust-ctrlc.git)" = "<none>"
 "checksum daemonize 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "271ec51b7e0bee92f0d04601422c73eb76ececf197026711c97ad25038a010cf"
@@ -2018,6 +2028,7 @@ dependencies = [
 "checksum env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "aba65b63ffcc17ffacd6cf5aa843da7c5a25e3bd4bbe0b7def8b214e411250e5"
 "checksum eth-secp256k1 0.5.4 (git+https://github.com/ethcore/rust-secp256k1)" = "<none>"
 "checksum ethabi 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f7b0c53453517f620847be51943db329276ae52f2e210cfc659e81182864be2f"
+"checksum fdlimit 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b1ee15a7050e5580b3712877157068ea713b245b080ff302ae2ca973cfcd9baa"
 "checksum flate2 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)" = "3eeb481e957304178d2e782f2da1257f1434dfecbae883bafb61ada2a9fea3bb"
 "checksum gcc 0.3.35 (registry+https://github.com/rust-lang/crates.io-index)" = "91ecd03771effb0c968fd6950b37e89476a578aaf1c70297d8e92b6516ec3312"
 "checksum glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "8be18de09a56b60ed0edf84bc9df007e30040691af7acd1c41874faac5895bfb"
@@ -2025,17 +2036,17 @@ dependencies = [
 "checksum heapsize 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "abb306abb8d398e053cfb1b3e7b72c2f580be048b85745c52652954f8ad1439c"
 "checksum hpack 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3d2da7d3a34cf6406d9d700111b8eafafe9a251de41ae71d8052748259343b58"
 "checksum httparse 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "46534074dbb80b070d60a5cb8ecadd8963a00a438ae1a95268850a7ef73b67ae"
+"checksum hyper 0.10.0-a.0 (git+https://github.com/ethcore/hyper)" = "<none>"
 "checksum hyper 0.9.10 (registry+https://github.com/rust-lang/crates.io-index)" = "eb27e8a3e8f17ac43ffa41bbda9cf5ad3f9f13ef66fa4873409d4902310275f7"
-"checksum hyper 0.9.4 (git+https://github.com/ethcore/hyper)" = "<none>"
 "checksum idna 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1053236e00ce4f668aeca4a769a09b3bf5a682d802abd6f3cb39374f6b162c11"
 "checksum igd 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c8c12b1795b8b168f577c45fa10379b3814dcb11b7ab702406001f0d63f40484"
 "checksum isatty 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7408a548dc0e406b7912d9f84c261cc533c1866e047644a811c133c56041ac0c"
 "checksum itertools 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)" = "086e1fa5fe48840b1cfdef3a20c7e3115599f8d5c4c87ef32a794a7cdd184d76"
 "checksum itoa 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ae3088ea4baeceb0284ee9eea42f591226e6beaecf65373e41b38d95a1b8e7a1"
-"checksum json-ipc-server 0.2.4 (git+https://github.com/ethcore/json-ipc-server.git)" = "<none>"
+"checksum jsonrpc-core 4.0.0 (git+https://github.com/ethcore/jsonrpc.git)" = "<none>"
-"checksum json-tcp-server 0.1.0 (git+https://github.com/ethcore/json-tcp-server)" = "<none>"
+"checksum jsonrpc-http-server 6.1.1 (git+https://github.com/ethcore/jsonrpc.git)" = "<none>"
-"checksum jsonrpc-core 3.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3c5094610b07f28f3edaf3947b732dadb31dbba4941d4d0c1c7a8350208f4414"
+"checksum jsonrpc-ipc-server 0.2.4 (git+https://github.com/ethcore/jsonrpc.git)" = "<none>"
-"checksum jsonrpc-http-server 6.1.1 (git+https://github.com/ethcore/jsonrpc-http-server.git)" = "<none>"
+"checksum jsonrpc-tcp-server 0.1.0 (git+https://github.com/ethcore/jsonrpc.git)" = "<none>"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
 "checksum language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a91d884b6667cd606bb5a69aa0c99ba811a115fc68915e7056ec08a46e93199a"
 "checksum lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "49247ec2a285bb3dcb23cbd9c35193c025e7251bfce77c1d5da97e6362dffe7f"

Cargo.toml

@@ -30,8 +30,7 @@ serde = "0.8.0"
 serde_json = "0.8.0"
 hyper = { version = "0.9", default-features = false }
 ctrlc = { git = "https://github.com/ethcore/rust-ctrlc.git" }
-json-ipc-server = { git = "https://github.com/ethcore/json-ipc-server.git" }
+fdlimit = "0.1"
-fdlimit = { path = "util/fdlimit" }
 ethcore = { path = "ethcore" }
 ethcore-util = { path = "util" }
 ethsync = { path = "sync" }
@@ -89,4 +88,4 @@ name = "parity"
 [profile.release]
 debug = false
 lto = false
-
+panic = "abort"

dapps/Cargo.toml

@@ -12,8 +12,8 @@ build = "build.rs"
 rand = "0.3.14"
 log = "0.3"
 env_logger = "0.3"
-jsonrpc-core = "3.0"
+jsonrpc-core = { git = "https://github.com/ethcore/jsonrpc.git" }
-jsonrpc-http-server = { git = "https://github.com/ethcore/jsonrpc-http-server.git" }
+jsonrpc-http-server = { git = "https://github.com/ethcore/jsonrpc.git" }
 hyper = { default-features = false, git = "https://github.com/ethcore/hyper" }
 unicase = "1.3"
 url = "1.0"

dapps/js-glue/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 description = "Base Package for all Parity built-in dapps"
 name = "parity-dapps-glue"
-version = "1.4.0"
+version = "1.5.0"
 license = "GPL-3.0"
 authors = ["Ethcore <admin@ethcore.io"]
 build = "build.rs"

dapps/src/handlers/content.rs

@@ -16,7 +16,6 @@
 
 //! Simple Content Handler
 
-use std::io::Write;
 use hyper::{header, server, Decoder, Encoder, Next};
 use hyper::net::HttpStream;
 use hyper::mime::Mime;

dapps/src/handlers/mod.rs

@@ -58,7 +58,7 @@ pub fn extract_url(req: &server::Request<net::HttpStream>) -> Option<Url> {
 				_ => None,
 			}
 		},
-		uri::RequestUri::AbsolutePath(ref path) => {
+		uri::RequestUri::AbsolutePath { ref path, .. } => {
 			// Attempt to prepend the Host header (mandatory in HTTP/1.1)
 			let url_string = match req.headers().get::<header::Host>() {
 				Some(ref host) => {

dapps/src/lib.rs

@@ -266,7 +266,11 @@ impl Server {
 	#[cfg(test)]
 	/// Returns address that this server is bound to.
 	pub fn addr(&self) -> &SocketAddr {
-		self.server.as_ref().expect("server is always Some at the start; it's consumed only when object is dropped; qed").addr()
+		self.server.as_ref()
+			.expect("server is always Some at the start; it's consumed only when object is dropped; qed")
+			.addrs()
+			.first()
+			.expect("You cannot start the server without binding to at least one address; qed")
 	}
 }
 

dapps/src/page/handler.rs

@@ -14,7 +14,6 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-use std::io::Write;
 use time::{self, Duration};
 
 use hyper::header;
@@ -126,7 +125,7 @@ impl<T: Dapp> PageHandler<T> {
 impl<T: Dapp> server::Handler<HttpStream> for PageHandler<T> {
 	fn on_request(&mut self, req: server::Request<HttpStream>) -> Next {
 		self.file = match *req.uri() {
-			RequestUri::AbsolutePath(ref path) => {
+			RequestUri::AbsolutePath { ref path, .. } => {
 				self.app.file(&self.extract_path(path))
 			},
 			RequestUri::AbsoluteUri(ref url) => {

dapps/src/rpc.rs

@@ -16,13 +16,14 @@
 
 use std::sync::{Arc, Mutex};
 use hyper;
-use jsonrpc_core::IoHandler;
+
-use jsonrpc_http_server::{ServerHandler, PanicHandler, AccessControlAllowOrigin};
+use jsonrpc_core::{IoHandler, ResponseHandler, Request, Response};
+use jsonrpc_http_server::{ServerHandler, PanicHandler, AccessControlAllowOrigin, RpcHandler};
 use endpoint::{Endpoint, EndpointPath, Handler};
 
 pub fn rpc(handler: Arc<IoHandler>, panic_handler: Arc<Mutex<Option<Box<Fn() -> () + Send>>>>) -> Box<Endpoint> {
 	Box::new(RpcEndpoint {
-		handler: handler,
+		handler: Arc::new(RpcMiddleware::new(handler)),
 		panic_handler: panic_handler,
 		cors_domain: None,
 		// NOTE [ToDr] We don't need to do any hosts validation here. It's already done in router.
@@ -31,7 +32,7 @@ pub fn rpc(handler: Arc<IoHandler>, panic_handler: Arc<Mutex<Option<Box<Fn() ->
 }
 
 struct RpcEndpoint {
-	handler: Arc<IoHandler>,
+	handler: Arc<RpcMiddleware>,
 	panic_handler: Arc<Mutex<Option<Box<Fn() -> () + Send>>>>,
 	cors_domain: Option<Vec<AccessControlAllowOrigin>>,
 	allowed_hosts: Option<Vec<String>>,
@@ -49,3 +50,86 @@ impl Endpoint for RpcEndpoint {
 		))
 	}
 }
+
+const MIDDLEWARE_METHOD: &'static str = "eth_accounts";
+
+struct RpcMiddleware {
+	handler: Arc<IoHandler>,
+}
+
+impl RpcMiddleware {
+	fn new(handler: Arc<IoHandler>) -> Self {
+		RpcMiddleware {
+			handler: handler,
+		}
+	}
+
+	/// Appends additional parameter for specific calls.
+	fn augment_request(&self, request: &mut Request, meta: Option<Meta>) {
+		use jsonrpc_core::{Call, Params, to_value};
+
+		fn augment_call(call: &mut Call, meta: Option<&Meta>) {
+			match (call, meta) {
+				(&mut Call::MethodCall(ref mut method_call), Some(meta)) if &method_call.method == MIDDLEWARE_METHOD => {
+					let session = to_value(&meta.app_id);
+
+					let params = match method_call.params {
+						Some(Params::Array(ref vec)) if vec.len() == 0 => Some(Params::Array(vec![session])),
+						// invalid params otherwise
+						_ => None,
+					};
+
+					method_call.params = params;
+				},
+				_ => {}
+			}
+		}
+
+		match *request {
+			Request::Single(ref mut call) => augment_call(call, meta.as_ref()),
+			Request::Batch(ref mut vec) => {
+				for mut call in vec {
+					augment_call(call, meta.as_ref())
+				}
+			},
+		}
+	}
+}
+
+#[derive(Debug)]
+struct Meta {
+	app_id: String,
+}
+
+impl RpcHandler for RpcMiddleware {
+	type Metadata = Meta;
+
+	fn read_metadata(&self, request: &hyper::server::Request<hyper::net::HttpStream>) -> Option<Self::Metadata> {
+		request.headers().get::<hyper::header::Referer>()
+			.and_then(|referer| hyper::Url::parse(referer).ok())
+			.and_then(|url| {
+				url.path_segments()
+					.and_then(|mut split| split.next())
+					.map(|app_id| Meta {
+						app_id: app_id.to_owned(),
+					})
+			})
+	}
+
+	fn handle_request<H>(&self, request_str: &str, response_handler: H, meta: Option<Self::Metadata>) where
+		H: ResponseHandler<Option<String>, Option<String>> + 'static
+	{
+		let handler = IoHandler::convert_handler(response_handler);
+		let request = IoHandler::read_request(request_str);
+		trace!(target: "rpc", "Request metadata: {:?}", meta);
+
+		match request {
+			Ok(mut request) => {
+				self.augment_request(&mut request, meta);
+				self.handler.request_handler().handle_request(request, handler, None)
+			},
+			Err(error) => handler.send(Some(Response::from(error))),
+		}
+	}
+}
+

dapps/ui/Cargo.toml

@@ -3,7 +3,7 @@ description = "Ethcore Parity UI"
 homepage = "http://ethcore.io"
 license = "GPL-3.0"
 name = "parity-ui"
-version = "1.4.0"
+version = "1.5.0"
 authors = ["Ethcore <admin@ethcore.io>"]
 
 [build-dependencies]

db/Cargo.toml

@@ -3,7 +3,7 @@ description = "Ethcore Database"
 homepage = "http://ethcore.io"
 license = "GPL-3.0"
 name = "ethcore-db"
-version = "1.4.0"
+version = "1.5.0"
 authors = ["Ethcore <admin@ethcore.io>"]
 build = "build.rs"
 

devtools/Cargo.toml

@@ -3,7 +3,7 @@ description = "Ethcore development/test/build tools"
 homepage = "http://ethcore.io"
 license = "GPL-3.0"
 name = "ethcore-devtools"
-version = "1.4.0"
+version = "1.5.0"
 authors = ["Ethcore <admin@ethcore.io>"]
 
 [dependencies]

ethash/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ethash"
-version = "1.4.0"
+version = "1.5.0"
 authors = ["arkpar <arkadiy@ethcore.io"]
 
 [lib]

ethcore/light/Cargo.toml

@@ -5,6 +5,10 @@ license = "GPL-3.0"
 name = "ethcore-light"
 version = "1.5.0"
 authors = ["Ethcore <admin@ethcore.io>"]
+build = "build.rs"
+
+[build-dependencies]
+"ethcore-ipc-codegen" = { path = "../../ipc/codegen" }
 
 [dependencies]
 log = "0.3"
@@ -12,5 +16,6 @@ ethcore = { path = ".." }
 ethcore-util = { path = "../../util" }
 ethcore-network = { path = "../../util/network" }
 ethcore-io = { path = "../../util/io" }
+ethcore-ipc = { path = "../../ipc/rpc" }
 rlp = { path = "../../util/rlp" }
 time = "0.1"

ethcore/light/build.rs

@@ -0,0 +1,21 @@
+// Copyright 2015, 2016 Ethcore (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+extern crate ethcore_ipc_codegen;
+
+fn main() {
+	ethcore_ipc_codegen::derive_binary("src/types/mod.rs.in").unwrap();
+}

ethcore/light/src/client.rs

@@ -101,7 +101,7 @@ impl Provider for Client {
 		Vec::new()
 	}
 
-	fn code(&self, _req: request::ContractCodes) -> Vec<Bytes> {
+	fn contract_code(&self, _req: request::ContractCodes) -> Vec<Bytes> {
 		Vec::new()
 	}
 

ethcore/light/src/lib.rs

@@ -28,20 +28,25 @@
 //! It starts by performing a header-only sync, verifying random samples
 //! of members of the chain to varying degrees.
 
-// TODO: remove when integrating with parity.
+// TODO: remove when integrating with the rest of parity.
 #![allow(dead_code)]
 
 pub mod client;
 pub mod net;
 pub mod provider;
-pub mod request;
 
+mod types;
+
+pub use self::provider::Provider;
+pub use types::les_request as request;
+
+#[macro_use]
+extern crate log;
+
+extern crate ethcore;
 extern crate ethcore_util as util;
 extern crate ethcore_network as network;
 extern crate ethcore_io as io;
-extern crate ethcore;
+extern crate ethcore_ipc as ipc;
 extern crate rlp;
-extern crate time;
+extern crate time;
-
-#[macro_use]
-extern crate log;

ethcore/light/src/net/buffer_flow.rs

@@ -206,6 +206,39 @@ impl FlowParams {
 		cost.0 + (amount * cost.1)
 	}
 
+	/// Compute the maximum number of costs of a specific kind which can be made 
+	/// with the given buffer.
+	/// Saturates at `usize::max()`. This is not a problem in practice because
+	/// this amount of requests is already prohibitively large.
+	pub fn max_amount(&self, buffer: &Buffer, kind: request::Kind) -> usize {
+		use util::Uint;
+		use std::usize;
+
+		let cost = match kind {
+			request::Kind::Headers => &self.costs.headers,
+			request::Kind::Bodies => &self.costs.bodies,
+			request::Kind::Receipts => &self.costs.receipts,
+			request::Kind::StateProofs => &self.costs.state_proofs,
+			request::Kind::Codes => &self.costs.contract_codes,
+			request::Kind::HeaderProofs => &self.costs.header_proofs,
+		};
+
+		let start = buffer.current();
+
+		if start <= cost.0 {
+			return 0;
+		} else if cost.1 == U256::zero() {
+			return usize::MAX;
+		}
+
+		let max = (start - cost.0) / cost.1;
+		if max >= usize::MAX.into() {
+			usize::MAX
+		} else {
+			max.as_u64() as usize
+		}
+	}
+
 	/// Create initial buffer parameter.
 	pub fn create_buffer(&self) -> Buffer {
 		Buffer {
@@ -228,6 +261,16 @@ impl FlowParams {
 
 		buf.estimate = ::std::cmp::min(self.limit, buf.estimate + (elapsed * self.recharge));
 	}
+
+	/// Refund some buffer which was previously deducted.
+	/// Does not update the recharge timestamp.
+	pub fn refund(&self, buf: &mut Buffer, refund_amount: U256) {
+		buf.estimate = buf.estimate + refund_amount;
+
+		if buf.estimate > self.limit {
+			buf.estimate = self.limit
+		}
+	}
 }
 
 #[cfg(test)]

ethcore/light/src/net/error.rs

@@ -52,6 +52,8 @@ pub enum Error {
 	UnexpectedHandshake,
 	/// Peer on wrong network (wrong NetworkId or genesis hash)
 	WrongNetwork,
+	/// Unknown peer.
+	UnknownPeer,
 }
 
 impl Error {
@@ -64,6 +66,7 @@ impl Error {
 			Error::UnrecognizedPacket(_) => Punishment::Disconnect,
 			Error::UnexpectedHandshake => Punishment::Disconnect,
 			Error::WrongNetwork => Punishment::Disable,
+			Error::UnknownPeer => Punishment::Disconnect,
 		}
 	}
 }
@@ -89,6 +92,7 @@ impl fmt::Display for Error {
 			Error::UnrecognizedPacket(code) => write!(f, "Unrecognized packet: 0x{:x}", code),
 			Error::UnexpectedHandshake => write!(f, "Unexpected handshake"),
 			Error::WrongNetwork => write!(f, "Wrong network"),
+			Error::UnknownPeer => write!(f, "unknown peer"),
 		}
 	}
 }

ethcore/light/src/net/mod.rs

@@ -19,27 +19,28 @@
 //! This uses a "Provider" to answer requests.
 //! See https://github.com/ethcore/parity/wiki/Light-Ethereum-Subprotocol-(LES)
 
+use ethcore::transaction::SignedTransaction;
 use io::TimerToken;
 use network::{NetworkProtocolHandler, NetworkContext, NetworkError, PeerId};
 use rlp::{RlpStream, Stream, UntrustedRlp, View};
 use util::hash::H256;
-use util::RwLock;
+use util::{Mutex, RwLock, U256};
+use time::SteadyTime;
 
 use std::collections::{HashMap, HashSet};
-use std::sync::atomic::AtomicUsize;
+use std::sync::atomic::{AtomicUsize, Ordering};
 
 use provider::Provider;
 use request::{self, Request};
 
 use self::buffer_flow::{Buffer, FlowParams};
 use self::error::{Error, Punishment};
-use self::status::{Status, Capabilities};
 
 mod buffer_flow;
 mod error;
 mod status;
 
-pub use self::status::Announcement;
+pub use self::status::{Status, Capabilities, Announcement, NetworkId};
 
 const TIMEOUT: TimerToken = 0;
 const TIMEOUT_INTERVAL_MS: u64 = 1000;
@@ -86,6 +87,10 @@ mod packet {
 	pub const HEADER_PROOFS: u8 = 0x0e;
 }
 
+/// A request id.
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub struct ReqId(usize);
+
 // A pending peer: one we've sent our status to but
 // may not have received one for.
 struct PendingPeer {
@@ -103,32 +108,162 @@ struct Peer {
 	sent_head: H256, // last head we've given them.
 }
 
+impl Peer {
+	// check the maximum cost of a request, returning an error if there's
+	// not enough buffer left.
+	// returns the calculated maximum cost.
+	fn deduct_max(&mut self, flow_params: &FlowParams, kind: request::Kind, max: usize) -> Result<U256, Error> {
+		flow_params.recharge(&mut self.local_buffer);
+
+		let max_cost = flow_params.compute_cost(kind, max);
+		try!(self.local_buffer.deduct_cost(max_cost));
+		Ok(max_cost)
+	}
+
+	// refund buffer for a request. returns new buffer amount.
+	fn refund(&mut self, flow_params: &FlowParams, amount: U256) -> U256 {
+		flow_params.refund(&mut self.local_buffer, amount);
+
+		self.local_buffer.current()
+	}
+
+	// recharge remote buffer with remote flow params.
+	fn recharge_remote(&mut self) {
+		let flow = &mut self.remote_flow;
+		flow.recharge(&mut self.remote_buffer);
+	}
+}
+
+/// An LES event handler.
+pub trait Handler: Send + Sync {
+	/// Called when a peer connects.
+	fn on_connect(&self, _id: PeerId, _status: &Status, _capabilities: &Capabilities) { }
+	/// Called when a peer disconnects
+	fn on_disconnect(&self, _id: PeerId) { }
+	/// Called when a peer makes an announcement.
+	fn on_announcement(&self, _id: PeerId, _announcement: &Announcement) { }
+	/// Called when a peer requests relay of some transactions.
+	fn on_transactions(&self, _id: PeerId, _relay: &[SignedTransaction]) { }
+}
+
+// a request and the time it was made.
+struct Requested {
+	request: Request,
+	timestamp: SteadyTime,
+}
+
+/// Protocol parameters.
+pub struct Params {
+	/// Genesis hash.
+	pub genesis_hash: H256,
+	/// Network id.
+	pub network_id: NetworkId,
+	/// Buffer flow parameters.
+	pub flow_params: FlowParams,
+	/// Initial capabilities.
+	pub capabilities: Capabilities,
+}
+
 /// This is an implementation of the light ethereum network protocol, abstracted
 /// over a `Provider` of data and a p2p network.
 ///
 /// This is simply designed for request-response purposes. Higher level uses
 /// of the protocol, such as synchronization, will function as wrappers around
 /// this system.
+// 
+// LOCK ORDER:
+//   Locks must be acquired in the order declared, and when holding a read lock 
+//   on the peers, only one peer may be held at a time.
 pub struct LightProtocol {
 	provider: Box<Provider>,
 	genesis_hash: H256,
-	network_id: status::NetworkId,
+	network_id: NetworkId,
 	pending_peers: RwLock<HashMap<PeerId, PendingPeer>>,
-	peers: RwLock<HashMap<PeerId, Peer>>,
+	peers: RwLock<HashMap<PeerId, Mutex<Peer>>>,
-	pending_requests: RwLock<HashMap<usize, Request>>,
+	pending_requests: RwLock<HashMap<usize, Requested>>,
 	capabilities: RwLock<Capabilities>,
 	flow_params: FlowParams, // assumed static and same for every peer.
+	handlers: Vec<Box<Handler>>,
 	req_id: AtomicUsize,
 }
 
 impl LightProtocol {
+	/// Create a new instance of the protocol manager.
+	pub fn new(provider: Box<Provider>, params: Params) -> Self {
+		LightProtocol {
+			provider: provider,
+			genesis_hash: params.genesis_hash,
+			network_id: params.network_id,
+			pending_peers: RwLock::new(HashMap::new()),
+			peers: RwLock::new(HashMap::new()),
+			pending_requests: RwLock::new(HashMap::new()),
+			capabilities: RwLock::new(params.capabilities),
+			flow_params: params.flow_params,
+			handlers: Vec::new(),
+			req_id: AtomicUsize::new(0),
+		}
+	}
+
+	/// Check the maximum amount of requests of a specific type 
+	/// which a peer would be able to serve.
+	pub fn max_requests(&self, peer: PeerId, kind: request::Kind) -> Option<usize> {
+		self.peers.read().get(&peer).map(|peer| {
+			let mut peer = peer.lock();
+			peer.recharge_remote();
+			peer.remote_flow.max_amount(&peer.remote_buffer, kind)
+		})
+	}
+
+	/// Make a request to a peer. 
+	///
+	/// Fails on: nonexistent peer, network error,
+	/// insufficient buffer. Does not check capabilities before sending.
+	/// On success, returns a request id which can later be coordinated 
+	/// with an event.
+	pub fn request_from(&self, io: &NetworkContext, peer_id: &PeerId, request: Request) -> Result<ReqId, Error> {
+		let peers = self.peers.read();
+		let peer = try!(peers.get(peer_id).ok_or_else(|| Error::UnknownPeer));
+		let mut peer = peer.lock();
+
+		peer.recharge_remote();
+
+		let max = peer.remote_flow.compute_cost(request.kind(), request.amount());
+		try!(peer.remote_buffer.deduct_cost(max));
+
+		let req_id = self.req_id.fetch_add(1, Ordering::SeqCst);
+		let packet_data = encode_request(&request, req_id);
+
+		let packet_id = match request.kind() {
+			request::Kind::Headers => packet::GET_BLOCK_HEADERS,
+			request::Kind::Bodies => packet::GET_BLOCK_BODIES,
+			request::Kind::Receipts => packet::GET_RECEIPTS,
+			request::Kind::StateProofs => packet::GET_PROOFS,
+			request::Kind::Codes => packet::GET_CONTRACT_CODES,
+			request::Kind::HeaderProofs => packet::GET_HEADER_PROOFS,
+		};
+
+		try!(io.send(*peer_id, packet_id, packet_data));
+
+		peer.current_asking.insert(req_id);
+		self.pending_requests.write().insert(req_id, Requested {
+			request: request,
+			timestamp: SteadyTime::now(),
+		});
+
+		Ok(ReqId(req_id))
+	}
+
 	/// Make an announcement of new chain head and capabilities to all peers.
 	/// The announcement is expected to be valid.
-	pub fn make_announcement(&self, mut announcement: Announcement, io: &NetworkContext) {
+	pub fn make_announcement(&self, io: &NetworkContext, mut announcement: Announcement) {
 		let mut reorgs_map = HashMap::new();
 
+		// update stored capabilities
+		self.capabilities.write().update_from(&announcement);
+
 		// calculate reorg info and send packets
-		for (peer_id, peer_info) in self.peers.write().iter_mut() {
+		for (peer_id, peer_info) in self.peers.read().iter() {
+			let mut peer_info = peer_info.lock();
 			let reorg_depth = reorgs_map.entry(peer_info.sent_head)
 				.or_insert_with(|| {
 					match self.provider.reorg_depth(&announcement.head_hash, &peer_info.sent_head) {
@@ -151,6 +286,14 @@ impl LightProtocol {
 			}
 		}
 	}
+
+	/// Add an event handler.
+	/// Ownership will be transferred to the protocol structure,
+	/// and the handler will be kept alive as long as it is.
+	/// These are intended to be added at the beginning of the 
+	pub fn add_handler(&mut self, handler: Box<Handler>) {
+		self.handlers.push(handler);
+	}
 }
 
 impl LightProtocol {
@@ -173,7 +316,11 @@ impl LightProtocol {
 	fn on_disconnect(&self, peer: PeerId) {
 		// TODO: reassign all requests assigned to this peer.
 		self.pending_peers.write().remove(&peer);
-		self.peers.write().remove(&peer);
+		if self.peers.write().remove(&peer).is_some() {
+			for handler in &self.handlers {
+				handler.on_disconnect(peer)
+			}	
+		}
 	}
 
 	// send status to a peer.
@@ -219,15 +366,19 @@ impl LightProtocol {
 			return Err(Error::WrongNetwork);
 		}
 
-		self.peers.write().insert(*peer, Peer {
+		self.peers.write().insert(*peer, Mutex::new(Peer {
 			local_buffer: self.flow_params.create_buffer(),
 			remote_buffer: flow_params.create_buffer(),
 			current_asking: HashSet::new(),
-			status: status,
+			status: status.clone(),
-			capabilities: capabilities,
+			capabilities: capabilities.clone(),
 			remote_flow: flow_params,
 			sent_head: pending.sent_head,
-		});
+		}));
+
+		for handler in &self.handlers {
+			handler.on_connect(*peer, &status, &capabilities)
+		}
 
 		Ok(())
 	}
@@ -240,13 +391,15 @@ impl LightProtocol {
 		}
 
 		let announcement = try!(status::parse_announcement(data));
-		let mut peers = self.peers.write();
+		let peers = self.peers.read();
 
-		let peer_info = match peers.get_mut(peer) {
+		let peer_info = match peers.get(peer) {
 			Some(info) => info,
 			None => return Ok(()),
 		};
 
+		let mut peer_info = peer_info.lock();
+
 		// update status.
 		{
 			// TODO: punish peer if they've moved backwards.
@@ -259,15 +412,11 @@ impl LightProtocol {
 		}
 
 		// update capabilities.
-		{
+		peer_info.capabilities.update_from(&announcement);
-			let caps = &mut peer_info.capabilities;
-			caps.serve_headers = caps.serve_headers || announcement.serve_headers;
-			caps.serve_state_since = caps.serve_state_since.or(announcement.serve_state_since);
-			caps.serve_chain_since = caps.serve_chain_since.or(announcement.serve_chain_since);
-			caps.tx_relay = caps.tx_relay || announcement.tx_relay;
-		}
 
-		// TODO: notify listeners if new best block.
+		for handler in &self.handlers {
+			handler.on_announcement(*peer, &announcement);
+		}
 
 		Ok(())
 	}
@@ -276,45 +425,39 @@ impl LightProtocol {
 	fn get_block_headers(&self, peer: &PeerId, io: &NetworkContext, data: UntrustedRlp) -> Result<(), Error> {
 		const MAX_HEADERS: usize = 512;
 
-		let mut present_buffer = match self.peers.read().get(peer) {
+		let peers = self.peers.read();
-			Some(peer) => peer.local_buffer.clone(),
+		let peer = match peers.get(peer) {
+			Some(peer) => peer,
 			None => {
-				debug!(target: "les", "Ignoring announcement from unknown peer");
+				debug!(target: "les", "Ignoring request from unknown peer");
 				return Ok(())
 			}
 		};
 
-		self.flow_params.recharge(&mut present_buffer);
+		let mut peer = peer.lock();
+
 		let req_id: u64 = try!(data.val_at(0));
 
+		let block = {
+			let rlp = try!(data.at(1));
+			(try!(rlp.val_at(0)), try!(rlp.val_at(1)))
+		};
+
 		let req = request::Headers {
-			block: {
+			block_num: block.0,
-				let rlp = try!(data.at(1));
+			block_hash: block.1,
-				(try!(rlp.val_at(0)), try!(rlp.val_at(1)))
-			},
 			max: ::std::cmp::min(MAX_HEADERS, try!(data.val_at(2))),
 			skip: try!(data.val_at(3)),
 			reverse: try!(data.val_at(4)),
 		};
 
-		let max_cost = self.flow_params.compute_cost(request::Kind::Headers, req.max);
+		let max_cost = try!(peer.deduct_max(&self.flow_params, request::Kind::Headers, req.max));
-		try!(present_buffer.deduct_cost(max_cost));
 
 		let response = self.provider.block_headers(req);
 		let actual_cost = self.flow_params.compute_cost(request::Kind::Headers, response.len());
+		assert!(max_cost >= actual_cost, "Actual cost exceeded maximum computed cost.");
 
-		let cur_buffer = match self.peers.write().get_mut(peer) {
+		let cur_buffer = peer.refund(&self.flow_params, max_cost - actual_cost);
-			Some(peer) => {
-				self.flow_params.recharge(&mut peer.local_buffer);
-				try!(peer.local_buffer.deduct_cost(actual_cost));
-				peer.local_buffer.current()
-			}
-			None => {
-				debug!(target: "les", "peer disconnected during serving of request.");
-				return Ok(())
-			}
-		};
-
 		io.respond(packet::BLOCK_HEADERS, {
 			let mut stream = RlpStream::new_list(response.len() + 2);
 			stream.append(&req_id).append(&cur_buffer);
@@ -336,39 +479,30 @@ impl LightProtocol {
 	fn get_block_bodies(&self, peer: &PeerId, io: &NetworkContext, data: UntrustedRlp) -> Result<(), Error> {
 		const MAX_BODIES: usize = 256;
 
-		let mut present_buffer = match self.peers.read().get(peer) {
+		let peers = self.peers.read();
-			Some(peer) => peer.local_buffer.clone(),
+		let peer = match peers.get(peer) {
+			Some(peer) => peer,
 			None => {
-				debug!(target: "les", "Ignoring announcement from unknown peer");
+				debug!(target: "les", "Ignoring request from unknown peer");
 				return Ok(())
 			}
 		};
+		let mut peer = peer.lock();
 
-		self.flow_params.recharge(&mut present_buffer);
 		let req_id: u64 = try!(data.val_at(0));
 
 		let req = request::Bodies {
 			block_hashes: try!(data.iter().skip(1).take(MAX_BODIES).map(|x| x.as_val()).collect())
 		};
 
-		let max_cost = self.flow_params.compute_cost(request::Kind::Bodies, req.block_hashes.len());
+		let max_cost = try!(peer.deduct_max(&self.flow_params, request::Kind::Bodies, req.block_hashes.len()));
-		try!(present_buffer.deduct_cost(max_cost));
 
 		let response = self.provider.block_bodies(req);
 		let response_len = response.iter().filter(|x| &x[..] != &::rlp::EMPTY_LIST_RLP).count();
 		let actual_cost = self.flow_params.compute_cost(request::Kind::Bodies, response_len);
+		assert!(max_cost >= actual_cost, "Actual cost exceeded maximum computed cost.");
 
-		let cur_buffer = match self.peers.write().get_mut(peer) {
+		let cur_buffer = peer.refund(&self.flow_params, max_cost - actual_cost);
-			Some(peer) => {
-				self.flow_params.recharge(&mut peer.local_buffer);
-				try!(peer.local_buffer.deduct_cost(actual_cost));
-				peer.local_buffer.current()
-			}
-			None => {
-				debug!(target: "les", "peer disconnected during serving of request.");
-				return Ok(())
-			}
-		};
 
 		io.respond(packet::BLOCK_BODIES, {
 			let mut stream = RlpStream::new_list(response.len() + 2);
@@ -388,8 +522,44 @@ impl LightProtocol {
 	}
 
 	// Handle a request for receipts.
-	fn get_receipts(&self, _: &PeerId, _: &NetworkContext, _: UntrustedRlp) -> Result<(), Error> {
+	fn get_receipts(&self, peer: &PeerId, io: &NetworkContext, data: UntrustedRlp) -> Result<(), Error> {
-		unimplemented!()
+		const MAX_RECEIPTS: usize = 256;
+
+		let peers = self.peers.read();
+		let peer = match peers.get(peer) {
+			Some(peer) => peer,
+			None => {
+				debug!(target: "les", "Ignoring request from unknown peer");
+				return Ok(())
+			}
+		};
+		let mut peer = peer.lock();
+
+		let req_id: u64 = try!(data.val_at(0));
+
+		let req = request::Receipts {
+			block_hashes: try!(data.iter().skip(1).take(MAX_RECEIPTS).map(|x| x.as_val()).collect())
+		};
+
+		let max_cost = try!(peer.deduct_max(&self.flow_params, request::Kind::Receipts, req.block_hashes.len()));
+
+		let response = self.provider.receipts(req);
+		let response_len = response.iter().filter(|x| &x[..] != &::rlp::EMPTY_LIST_RLP).count();
+		let actual_cost = self.flow_params.compute_cost(request::Kind::Receipts, response_len);
+		assert!(max_cost >= actual_cost, "Actual cost exceeded maximum computed cost.");
+
+		let cur_buffer = peer.refund(&self.flow_params, max_cost - actual_cost);
+
+		io.respond(packet::RECEIPTS, {
+			let mut stream = RlpStream::new_list(response.len() + 2);
+			stream.append(&req_id).append(&cur_buffer);
+
+			for receipts in response {
+				stream.append_raw(&receipts, 1);
+			}
+
+			stream.out()
+		}).map_err(Into::into)
 	}
 
 	// Receive a response for receipts.
@@ -398,8 +568,55 @@ impl LightProtocol {
 	}
 
 	// Handle a request for proofs.
-	fn get_proofs(&self, _: &PeerId, _: &NetworkContext, _: UntrustedRlp) -> Result<(), Error> {
+	fn get_proofs(&self, peer: &PeerId, io: &NetworkContext, data: UntrustedRlp) -> Result<(), Error> {
-		unimplemented!()
+		const MAX_PROOFS: usize = 128;
+
+		let peers = self.peers.read();
+		let peer = match peers.get(peer) {
+			Some(peer) => peer,
+			None => {
+				debug!(target: "les", "Ignoring request from unknown peer");
+				return Ok(())
+			}
+		};
+		let mut peer = peer.lock();
+
+		let req_id: u64 = try!(data.val_at(0));
+
+		let req = {
+			let requests: Result<Vec<_>, Error> = data.iter().skip(1).take(MAX_PROOFS).map(|x| {
+				Ok(request::StateProof {
+					block: try!(x.val_at(0)),
+					key1: try!(x.val_at(1)),
+					key2: if try!(x.at(2)).is_empty() { None } else { Some(try!(x.val_at(2))) },
+					from_level: try!(x.val_at(3)),
+				})
+			}).collect();
+
+			request::StateProofs {
+				requests: try!(requests),
+			}
+		};
+
+		let max_cost = try!(peer.deduct_max(&self.flow_params, request::Kind::StateProofs, req.requests.len()));
+
+		let response = self.provider.proofs(req);
+		let response_len = response.iter().filter(|x| &x[..] != &::rlp::EMPTY_LIST_RLP).count();
+		let actual_cost = self.flow_params.compute_cost(request::Kind::StateProofs, response_len);
+		assert!(max_cost >= actual_cost, "Actual cost exceeded maximum computed cost.");
+
+		let cur_buffer = peer.refund(&self.flow_params, max_cost - actual_cost);
+
+		io.respond(packet::PROOFS, {
+			let mut stream = RlpStream::new_list(response.len() + 2);
+			stream.append(&req_id).append(&cur_buffer);
+
+			for proof in response {
+				stream.append_raw(&proof, 1);
+			}
+
+			stream.out()
+		}).map_err(Into::into)
 	}
 
 	// Receive a response for proofs.
@@ -408,8 +625,53 @@ impl LightProtocol {
 	}
 
 	// Handle a request for contract code.
-	fn get_contract_code(&self, _: &PeerId, _: &NetworkContext, _: UntrustedRlp) -> Result<(), Error> {
+	fn get_contract_code(&self, peer: &PeerId, io: &NetworkContext, data: UntrustedRlp) -> Result<(), Error> {
-		unimplemented!()
+		const MAX_CODES: usize = 256;
+
+		let peers = self.peers.read();
+		let peer = match peers.get(peer) {
+			Some(peer) => peer,
+			None => {
+				debug!(target: "les", "Ignoring request from unknown peer");
+				return Ok(())
+			}
+		};
+		let mut peer = peer.lock();
+
+		let req_id: u64 = try!(data.val_at(0));
+
+		let req = {
+			let requests: Result<Vec<_>, Error> = data.iter().skip(1).take(MAX_CODES).map(|x| {
+				Ok(request::ContractCode {
+					block_hash: try!(x.val_at(0)),
+					account_key: try!(x.val_at(1)),
+				})
+			}).collect();
+
+			request::ContractCodes {
+				code_requests: try!(requests),
+			}
+		};
+
+		let max_cost = try!(peer.deduct_max(&self.flow_params, request::Kind::Codes, req.code_requests.len()));
+
+		let response = self.provider.contract_code(req);
+		let response_len = response.iter().filter(|x| !x.is_empty()).count();
+		let actual_cost = self.flow_params.compute_cost(request::Kind::Codes, response_len);
+		assert!(max_cost >= actual_cost, "Actual cost exceeded maximum computed cost.");
+
+		let cur_buffer = peer.refund(&self.flow_params, max_cost - actual_cost);
+
+		io.respond(packet::CONTRACT_CODES, {
+			let mut stream = RlpStream::new_list(response.len() + 2);
+			stream.append(&req_id).append(&cur_buffer);
+
+			for code in response {
+				stream.append_raw(&code, 1);
+			}
+
+			stream.out()
+		}).map_err(Into::into)
 	}
 
 	// Receive a response for contract code.
@@ -418,8 +680,54 @@ impl LightProtocol {
 	}
 
 	// Handle a request for header proofs
-	fn get_header_proofs(&self, _: &PeerId, _: &NetworkContext, _: UntrustedRlp) -> Result<(), Error> {
+	fn get_header_proofs(&self, peer: &PeerId, io: &NetworkContext, data: UntrustedRlp) -> Result<(), Error> {
-		unimplemented!()
+		const MAX_PROOFS: usize = 256;
+
+		let peers = self.peers.read();
+		let peer = match peers.get(peer) {
+			Some(peer) => peer,
+			None => {
+				debug!(target: "les", "Ignoring request from unknown peer");
+				return Ok(())
+			}
+		};
+		let mut peer = peer.lock();
+
+		let req_id: u64 = try!(data.val_at(0));
+
+		let req = {
+			let requests: Result<Vec<_>, Error> = data.iter().skip(1).take(MAX_PROOFS).map(|x| {
+				Ok(request::HeaderProof {
+					cht_number: try!(x.val_at(0)),
+					block_number: try!(x.val_at(1)),
+					from_level: try!(x.val_at(2)),
+				})
+			}).collect();
+
+			request::HeaderProofs {
+				requests: try!(requests),
+			}
+		};
+
+		let max_cost = try!(peer.deduct_max(&self.flow_params, request::Kind::HeaderProofs, req.requests.len()));
+
+		let response = self.provider.header_proofs(req);
+		let response_len = response.iter().filter(|x| &x[..] != ::rlp::EMPTY_LIST_RLP).count();
+		let actual_cost = self.flow_params.compute_cost(request::Kind::HeaderProofs, response_len);
+		assert!(max_cost >= actual_cost, "Actual cost exceeded maximum computed cost.");
+
+		let cur_buffer = peer.refund(&self.flow_params, max_cost - actual_cost);
+
+		io.respond(packet::HEADER_PROOFS, {
+			let mut stream = RlpStream::new_list(response.len() + 2);
+			stream.append(&req_id).append(&cur_buffer);
+
+			for proof in response {
+				stream.append_raw(&proof, 1);
+			}
+
+			stream.out()
+		}).map_err(Into::into)
 	}
 
 	// Receive a response for header proofs
@@ -428,8 +736,18 @@ impl LightProtocol {
 	}
 
 	// Receive a set of transactions to relay.
-	fn relay_transactions(&self, _: &PeerId, _: &NetworkContext, _: UntrustedRlp) -> Result<(), Error> {
+	fn relay_transactions(&self, peer: &PeerId, data: UntrustedRlp) -> Result<(), Error> {
-		unimplemented!()
+		const MAX_TRANSACTIONS: usize = 256;
+
+		let txs: Vec<_> = try!(data.iter().take(MAX_TRANSACTIONS).map(|x| x.as_val::<SignedTransaction>()).collect());
+
+		debug!(target: "les", "Received {} transactions to relay from peer {}", txs.len(), peer);
+
+		for handler in &self.handlers {
+			handler.on_transactions(*peer, &txs);
+		}
+
+		Ok(())
 	}
 }
 
@@ -464,7 +782,7 @@ impl NetworkProtocolHandler for LightProtocol {
 			packet::GET_HEADER_PROOFS => self.get_header_proofs(peer, io, rlp),
 			packet::HEADER_PROOFS => self.header_proofs(peer, io, rlp),
 
-			packet::SEND_TRANSACTIONS => self.relay_transactions(peer, io, rlp),
+			packet::SEND_TRANSACTIONS => self.relay_transactions(peer, rlp),
 
 			other => {
 				Err(Error::UnrecognizedPacket(other))
@@ -503,4 +821,86 @@ impl NetworkProtocolHandler for LightProtocol {
 			_ => warn!(target: "les", "received timeout on unknown token {}", timer),
 		}
 	}
+}
+
+// Helper for encoding the request to RLP with the given ID.
+fn encode_request(req: &Request, req_id: usize) -> Vec<u8> {
+	match *req {
+		Request::Headers(ref headers) => {
+			let mut stream = RlpStream::new_list(5);
+			stream
+				.append(&req_id)
+				.begin_list(2)
+					.append(&headers.block_num)
+					.append(&headers.block_hash)
+				.append(&headers.max)
+				.append(&headers.skip)
+				.append(&headers.reverse);
+			stream.out()
+		}
+		Request::Bodies(ref request) => {
+			let mut stream = RlpStream::new_list(request.block_hashes.len() + 1);
+			stream.append(&req_id);
+
+			for hash in &request.block_hashes {
+				stream.append(hash);
+			}
+
+			stream.out()
+		}
+		Request::Receipts(ref request) => {
+			let mut stream = RlpStream::new_list(request.block_hashes.len() + 1);
+			stream.append(&req_id);
+
+			for hash in &request.block_hashes {
+				stream.append(hash);
+			}
+
+			stream.out()
+		}
+		Request::StateProofs(ref request) => {
+			let mut stream = RlpStream::new_list(request.requests.len() + 1);
+			stream.append(&req_id);
+
+			for proof_req in &request.requests {
+				stream.begin_list(4)
+					.append(&proof_req.block)
+					.append(&proof_req.key1);
+
+				match proof_req.key2 {
+					Some(ref key2) => stream.append(key2),
+					None => stream.append_empty_data(),
+				};
+
+				stream.append(&proof_req.from_level);
+			}
+
+			stream.out()
+		}
+		Request::Codes(ref request) => {
+			let mut stream = RlpStream::new_list(request.code_requests.len() + 1);
+			stream.append(&req_id);
+
+			for code_req in &request.code_requests {
+				stream.begin_list(2)
+					.append(&code_req.block_hash)
+					.append(&code_req.account_key);
+			}
+
+			stream.out()
+		}
+		Request::HeaderProofs(ref request) => {
+			let mut stream = RlpStream::new_list(request.requests.len() + 1);
+			stream.append(&req_id);
+
+			for proof_req in &request.requests {
+				stream.begin_list(3)
+					.append(&proof_req.cht_number)
+					.append(&proof_req.block_number)
+					.append(&proof_req.from_level);
+			}
+
+			stream.out()
+		}
+	}
 }

ethcore/light/src/net/status.rs

@@ -183,8 +183,10 @@ pub struct Capabilities {
 	/// Whether this peer can serve headers
 	pub serve_headers: bool,
 	/// Earliest block number it can serve block/receipt requests for.
+	/// `None` means no requests will be servable.
 	pub serve_chain_since: Option<u64>,
 	/// Earliest block number it can serve state requests for.
+	/// `None` means no requests will be servable.
 	pub serve_state_since: Option<u64>,
 	/// Whether it can relay transactions to the eth network.
 	pub tx_relay: bool,
@@ -201,6 +203,16 @@ impl Default for Capabilities {
 	}
 }
 
+impl Capabilities {
+	/// Update the capabilities from an announcement.
+	pub fn update_from(&mut self, announcement: &Announcement) {
+		self.serve_headers = self.serve_headers || announcement.serve_headers;
+		self.serve_state_since = self.serve_state_since.or(announcement.serve_state_since);
+		self.serve_chain_since = self.serve_chain_since.or(announcement.serve_chain_since);
+		self.tx_relay = self.tx_relay || announcement.tx_relay;
+	}
+}
+
 /// Attempt to parse a handshake message into its three parts:
 ///   - chain status
 ///   - serving capabilities

ethcore/light/src/provider.rs

@@ -17,8 +17,11 @@
 //! A provider for the LES protocol. This is typically a full node, who can
 //! give as much data as necessary to its peers.
 
-use ethcore::transaction::SignedTransaction;
 use ethcore::blockchain_info::BlockChainInfo;
+use ethcore::client::{BlockChainClient, ProvingBlockChainClient};
+use ethcore::transaction::SignedTransaction;
+use ethcore::ids::BlockID;
+
 use util::{Bytes, H256};
 
 use request;
@@ -26,7 +29,8 @@ use request;
 /// Defines the operations that a provider for `LES` must fulfill.
 ///
 /// These are defined at [1], but may be subject to change.
-/// Requests which can't be fulfilled should return an empty RLP list.
+/// Requests which can't be fulfilled should return either an empty RLP list
+/// or empty vector where appropriate.
 ///
 /// [1]: https://github.com/ethcore/parity/wiki/Light-Ethereum-Subprotocol-(LES)
 pub trait Provider: Send + Sync {
@@ -34,9 +38,12 @@ pub trait Provider: Send + Sync {
 	fn chain_info(&self) -> BlockChainInfo;
 
 	/// Find the depth of a common ancestor between two blocks.
+	/// If either block is unknown or an ancestor can't be found
+	/// then return `None`.
 	fn reorg_depth(&self, a: &H256, b: &H256) -> Option<u64>;
 
-	/// Earliest state.
+	/// Earliest block where state queries are available.
+	/// If `None`, no state queries are servable.
 	fn earliest_state(&self) -> Option<u64>;
 
 	/// Provide a list of headers starting at the requested block,
@@ -57,15 +64,105 @@ pub trait Provider: Send + Sync {
 	/// Provide a set of merkle proofs, as requested. Each request is a
 	/// block hash and request parameters.
 	///
-	/// Returns a vector to RLP-encoded lists satisfying the requests.
+	/// Returns a vector of RLP-encoded lists satisfying the requests.
 	fn proofs(&self, req: request::StateProofs) -> Vec<Bytes>;
 
 	/// Provide contract code for the specified (block_hash, account_hash) pairs.
-	fn code(&self, req: request::ContractCodes) -> Vec<Bytes>;
+	/// Each item in the resulting vector is either the raw bytecode or empty.
+	fn contract_code(&self, req: request::ContractCodes) -> Vec<Bytes>;
 
 	/// Provide header proofs from the Canonical Hash Tries.
 	fn header_proofs(&self, req: request::HeaderProofs) -> Vec<Bytes>;
 
 	/// Provide pending transactions.
 	fn pending_transactions(&self) -> Vec<SignedTransaction>;
+}
+
+// Implementation of a light client data provider for a client.
+impl<T: ProvingBlockChainClient + ?Sized> Provider for T {
+	fn chain_info(&self) -> BlockChainInfo {
+		BlockChainClient::chain_info(self)
+	}
+
+	fn reorg_depth(&self, a: &H256, b: &H256) -> Option<u64> {
+		self.tree_route(a, b).map(|route| route.index as u64)
+	}
+
+	fn earliest_state(&self) -> Option<u64> {
+		Some(self.pruning_info().earliest_state)
+	}
+
+	fn block_headers(&self, req: request::Headers) -> Vec<Bytes> {
+		let best_num = self.chain_info().best_block_number;
+		let start_num = req.block_num;
+
+		match self.block_hash(BlockID::Number(req.block_num)) {
+			Some(hash) if hash == req.block_hash => {}
+			_=> {
+				trace!(target: "les_provider", "unknown/non-canonical start block in header request: {:?}", (req.block_num, req.block_hash));
+				return vec![]
+			}
+		}
+
+		(0u64..req.max as u64)
+			.map(|x: u64| x.saturating_mul(req.skip))
+			.take_while(|x| if req.reverse { x < &start_num } else { best_num - start_num < *x })
+			.map(|x| if req.reverse { start_num - x } else { start_num + x })
+			.map(|x| self.block_header(BlockID::Number(x)))
+			.take_while(|x| x.is_some())
+			.flat_map(|x| x)
+			.collect()
+	}
+
+	fn block_bodies(&self, req: request::Bodies) -> Vec<Bytes> {
+		req.block_hashes.into_iter()
+			.map(|hash| self.block_body(BlockID::Hash(hash)))
+			.map(|body| body.unwrap_or_else(|| ::rlp::EMPTY_LIST_RLP.to_vec()))
+			.collect()
+	}
+
+	fn receipts(&self, req: request::Receipts) -> Vec<Bytes> {
+		req.block_hashes.into_iter()
+			.map(|hash| self.block_receipts(&hash))
+			.map(|receipts| receipts.unwrap_or_else(|| ::rlp::EMPTY_LIST_RLP.to_vec()))
+			.collect()
+	}
+
+	fn proofs(&self, req: request::StateProofs) -> Vec<Bytes> {
+		use rlp::{RlpStream, Stream};
+
+		let mut results = Vec::with_capacity(req.requests.len());
+
+		for request in req.requests {
+			let proof = match request.key2 {
+				Some(key2) => self.prove_storage(request.key1, key2, request.from_level, BlockID::Hash(request.block)),
+				None => self.prove_account(request.key1, request.from_level, BlockID::Hash(request.block)),
+			};
+
+			let mut stream = RlpStream::new_list(proof.len());
+			for node in proof {
+				stream.append_raw(&node, 1);
+			}
+
+			results.push(stream.out());
+		}
+
+		results
+	}
+
+	fn contract_code(&self, req: request::ContractCodes) -> Vec<Bytes> {
+		req.code_requests.into_iter()
+			.map(|req| {
+				self.code_by_hash(req.account_key, BlockID::Hash(req.block_hash))
+			})
+			.collect()
+	}
+
+	fn header_proofs(&self, req: request::HeaderProofs) -> Vec<Bytes> {
+		req.requests.into_iter().map(|_| ::rlp::EMPTY_LIST_RLP.to_vec()).collect()
+	}
+
+	fn pending_transactions(&self) -> Vec<SignedTransaction> {
+		BlockChainClient::pending_transactions(self)
+	}
 }

ethcore/light/src/types/les_request.rs

@@ -16,25 +16,26 @@
 
 //! LES request types.
 
-// TODO: make IPC compatible.
-
 use util::H256;
 
 /// A request for block headers.
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, PartialEq, Eq, Binary)]
 pub struct Headers {
-	/// Block information for the request being made.
+	/// Starting block number
-	pub block: (u64, H256),
+	pub block_num: u64,
+	/// Starting block hash. This and number could be combined but IPC codegen is
+	/// not robust enough to support it.
+	pub block_hash: H256,
 	/// The maximum amount of headers which can be returned.
 	pub max: usize,
 	/// The amount of headers to skip between each response entry.
-	pub skip: usize,
+	pub skip: u64,
 	/// Whether the headers should proceed in falling number from the initial block.
 	pub reverse: bool,
 }
 
 /// A request for specific block bodies.
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, PartialEq, Eq, Binary)]
 pub struct Bodies {
 	/// Hashes which bodies are being requested for.
 	pub block_hashes: Vec<H256>
@@ -44,14 +45,14 @@ pub struct Bodies {
 ///
 /// This request is answered with a list of transaction receipts for each block
 /// requested.
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, PartialEq, Eq, Binary)]
 pub struct Receipts {
 	/// Block hashes to return receipts for.
 	pub block_hashes: Vec<H256>,
 }
 
 /// A request for a state proof
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, PartialEq, Eq, Binary)]
 pub struct StateProof {
 	/// Block hash to query state from.
 	pub block: H256,
@@ -65,21 +66,30 @@ pub struct StateProof {
 }
 
 /// A request for state proofs.
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, PartialEq, Eq, Binary)]
 pub struct StateProofs {
 	/// All the proof requests.
 	pub requests: Vec<StateProof>,
 }
 
 /// A request for contract code.
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, PartialEq, Eq, Binary)]
+pub struct ContractCode {
+	/// Block hash
+	pub block_hash: H256,
+	/// Account key (== sha3(address))
+	pub account_key: H256,
+}
+
+/// A request for contract code.
+#[derive(Debug, Clone, PartialEq, Eq, Binary)]
 pub struct ContractCodes {
 	/// Block hash and account key (== sha3(address)) pairs to fetch code for.
-	pub code_requests: Vec<(H256, H256)>,
+	pub code_requests: Vec<ContractCode>,
 }
 
 /// A request for a header proof from the Canonical Hash Trie.
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, PartialEq, Eq, Binary)]
 pub struct HeaderProof {
 	/// Number of the CHT.
 	pub cht_number: u64,
@@ -90,14 +100,14 @@ pub struct HeaderProof {
 }
 
 /// A request for header proofs from the CHT.
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, PartialEq, Eq, Binary)]
 pub struct HeaderProofs {
 	/// All the proof requests.
-	pub requests: Vec<HeaderProofs>,
+	pub requests: Vec<HeaderProof>,
 }
 
 /// Kinds of requests.
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Binary)]
 pub enum Kind {
 	/// Requesting headers.
 	Headers,
@@ -114,7 +124,7 @@ pub enum Kind {
 }
 
 /// Encompasses all possible types of requests in a single structure.
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone, PartialEq, Eq, Binary)]
 pub enum Request {
 	/// Requesting headers.
 	Headers(Headers),
@@ -142,4 +152,16 @@ impl Request {
 			Request::HeaderProofs(_) => Kind::HeaderProofs,
 		}
 	}
+
+	/// Get the amount of requests being made.
+	pub fn amount(&self) -> usize {
+		match *self {
+			Request::Headers(ref req) => req.max,
+			Request::Bodies(ref req) => req.block_hashes.len(),
+			Request::Receipts(ref req) => req.block_hashes.len(),
+			Request::StateProofs(ref req) => req.requests.len(),
+			Request::Codes(ref req) => req.code_requests.len(),
+			Request::HeaderProofs(ref req) => req.requests.len(),
+		}
+	}
 }

ethcore/light/src/types/mod.rs

@@ -14,8 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-import { PropTypes } from 'react';
+//! Types used in the public (IPC) api which require custom code generation.
 
-export default function (type) {
+#![allow(dead_code, unused_assignments, unused_variables)] // codegen issues
-  return PropTypes.oneOfType([ PropTypes.oneOf([ null ]), type ]);
+include!(concat!(env!("OUT_DIR"), "/mod.rs.in"));
-}

ethcore/light/src/types/mod.rs.in

@@ -0,0 +1,17 @@
+// Copyright 2015, 2016 Ethcore (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+pub mod les_request;

ethcore/res/authority_round.json

@@ -21,8 +21,7 @@
 	"genesis": {
 		"seal": {
 			"generic": {
-				"fields": 2,
+				"rlp": "0xc28080"
-				"rlp": "0x200"
 			}
 		},
 		"difficulty": "0x20000",

ethcore/res/instant_seal.json

@@ -12,7 +12,6 @@
 	"genesis": {
 		"seal": {
 			"generic": {
-				"fields": 0,
 				"rlp": "0x0"
 			}
 		},

ethcore/src/account_provider/mod.rs

@@ -16,9 +16,12 @@
 
 //! Account management.
 
-use std::{fs, fmt};
+mod stores;
+
+use self::stores::{AddressBook, DappsSettingsStore};
+
+use std::fmt;
 use std::collections::HashMap;
-use std::path::PathBuf;
 use std::time::{Instant, Duration};
 use util::{Mutex, RwLock, Itertools};
 use ethstore::{SimpleSecretStore, SecretStore, Error as SSError, SafeAccount, EthStore, EthMultiStore, random_string};
@@ -106,77 +109,8 @@ impl KeyDirectory for NullDir {
 	}
 }
 
-/// Disk-backed map from Address to String. Uses JSON.
+/// Dapp identifier
-struct AddressBook {
+pub type DappId = String;
-	path: PathBuf,
-	cache: HashMap<Address, AccountMeta>,
-	transient: bool,
-}
-
-impl AddressBook {
-	pub fn new(path: String) -> Self {
-		trace!(target: "addressbook", "new({})", path);
-		let mut path: PathBuf = path.into();
-		path.push("address_book.json");
-		trace!(target: "addressbook", "path={:?}", path);
-		let mut r = AddressBook {
-			path: path,
-			cache: HashMap::new(),
-			transient: false,
-		};
-		r.revert();
-		r
-	}
-
-	pub fn transient() -> Self {
-		let mut book = AddressBook::new(Default::default());
-		book.transient = true;
-		book
-	}
-
-	pub fn get(&self) -> HashMap<Address, AccountMeta> {
-		self.cache.clone()
-	}
-
-	pub fn set_name(&mut self, a: Address, name: String) {
-		let mut x = self.cache.get(&a)
-			.cloned()
-			.unwrap_or_else(|| AccountMeta {name: Default::default(), meta: "{}".to_owned(), uuid: None});
-		x.name = name;
-		self.cache.insert(a, x);
-		self.save();
-	}
-
-	pub fn set_meta(&mut self, a: Address, meta: String) {
-		let mut x = self.cache.get(&a)
-			.cloned()
-			.unwrap_or_else(|| AccountMeta {name: "Anonymous".to_owned(), meta: Default::default(), uuid: None});
-		x.meta = meta;
-		self.cache.insert(a, x);
-		self.save();
-	}
-
-	fn revert(&mut self) {
-		if self.transient { return; }
-		trace!(target: "addressbook", "revert");
-		let _ = fs::File::open(self.path.clone())
-			.map_err(|e| trace!(target: "addressbook", "Couldn't open address book: {}", e))
-			.and_then(|f| AccountMeta::read_address_map(&f)
-				.map_err(|e| warn!(target: "addressbook", "Couldn't read address book: {}", e))
-				.and_then(|m| { self.cache = m; Ok(()) })
-			);
-	}
-
-	fn save(&mut self) {
-		if self.transient { return; }
-		trace!(target: "addressbook", "save");
-		let _ = fs::File::create(self.path.clone())
-			.map_err(|e| warn!(target: "addressbook", "Couldn't open address book for writing: {}", e))
-			.and_then(|mut f| AccountMeta::write_address_map(&self.cache, &mut f)
-				.map_err(|e| warn!(target: "addressbook", "Couldn't write to address book: {}", e))
-			);
-	}
-}
 
 fn transient_sstore() -> EthMultiStore {
 	EthMultiStore::open(Box::new(NullDir::default())).expect("NullDir load always succeeds; qed")
@@ -189,6 +123,7 @@ type AccountToken = String;
 pub struct AccountProvider {
 	address_book: Mutex<AddressBook>,
 	unlocked: Mutex<HashMap<Address, AccountData>>,
+	dapps_settings: RwLock<DappsSettingsStore>,
 	/// Accounts on disk
 	sstore: Box<SecretStore>,
 	/// Accounts unlocked with rolling tokens
@@ -200,7 +135,8 @@ impl AccountProvider {
 	pub fn new(sstore: Box<SecretStore>) -> Self {
 		AccountProvider {
 			unlocked: Mutex::new(HashMap::new()),
-			address_book: Mutex::new(AddressBook::new(sstore.local_path().into())),
+			address_book: RwLock::new(AddressBook::new(sstore.local_path().into())),
+			dapps_settings: RwLock::new(DappsSettingsStore::new(sstore.local_path().into())),
 			sstore: sstore,
 			transient_sstore: transient_sstore(),
 		}
@@ -209,8 +145,9 @@ impl AccountProvider {
 	/// Creates not disk backed provider.
 	pub fn transient_provider() -> Self {
 		AccountProvider {
-			unlocked: Mutex::new(HashMap::new()),
 			address_book: Mutex::new(AddressBook::transient()),
+			unlocked: Mutex::new(HashMap::new()),
+			dapps_settings: RwLock::new(DappsSettingsStore::transient()),
 			sstore: Box::new(EthStore::open(Box::new(NullDir::default())).expect("NullDir load always succeeds; qed")),
 			transient_sstore: transient_sstore(),
 		}
@@ -255,19 +192,36 @@ impl AccountProvider {
 		Ok(accounts)
 	}
 
+	/// Gets addresses visile for dapp.
+	pub fn dapps_addresses(&self, dapp: DappId) -> Result<Vec<Address>, Error> {
+		let accounts = self.dapps_settings.read().get();
+		Ok(accounts.get(&dapp).map(|settings| settings.accounts.clone()).unwrap_or_else(Vec::new))
+	}
+
+	/// Sets addresses visile for dapp.
+	pub fn set_dapps_addresses(&self, dapp: DappId, addresses: Vec<Address>) -> Result<(), Error> {
+		self.dapps_settings.write().set_accounts(dapp, addresses);
+		Ok(())
+	}
+
 	/// Returns each address along with metadata.
 	pub fn addresses_info(&self) -> Result<HashMap<Address, AccountMeta>, Error> {
-		Ok(self.address_book.lock().get())
+		Ok(self.address_book.read().get())
 	}
 
 	/// Returns each address along with metadata.
 	pub fn set_address_name(&self, account: Address, name: String) -> Result<(), Error> {
-		Ok(self.address_book.lock().set_name(account, name))
+		Ok(self.address_book.write().set_name(account, name))
 	}
 
 	/// Returns each address along with metadata.
 	pub fn set_address_meta(&self, account: Address, meta: String) -> Result<(), Error> {
-		Ok(self.address_book.lock().set_meta(account, meta))
+		Ok(self.address_book.write().set_meta(account, meta))
+	}
+
+	/// Removes and address from the addressbook
+	pub fn remove_address(&self, addr: Address) -> Result<(), Error> {
+		Ok(self.address_book.write().remove(addr))
 	}
 
 	/// Returns each account along with name and meta.
@@ -443,23 +397,9 @@ impl AccountProvider {
 
 #[cfg(test)]
 mod tests {
-	use super::{AccountProvider, AddressBook, Unlock};
+	use super::{AccountProvider, Unlock};
-	use std::collections::HashMap;
 	use std::time::Instant;
-	use ethjson::misc::AccountMeta;
 	use ethstore::ethkey::{Generator, Random};
-	use devtools::RandomTempPath;
-
-	#[test]
-	fn should_save_and_reload_address_book() {
-		let temp = RandomTempPath::create_dir();
-		let path = temp.as_str().to_owned();
-		let mut b = AddressBook::new(path.clone());
-		b.set_name(1.into(), "One".to_owned());
-		b.set_meta(1.into(), "{1:1}".to_owned());
-		let b = AddressBook::new(path);
-		assert_eq!(b.get(), hash_map![1.into() => AccountMeta{name: "One".to_owned(), meta: "{1:1}".to_owned(), uuid: None}]);
-	}
 
 	#[test]
 	fn unlock_account_temp() {
@@ -513,4 +453,16 @@ mod tests {
 			.expect("First usage of token should be correct.");
 		assert!(ap.sign_with_token(kp.address(), token, Default::default()).is_err(), "Second usage of the same token should fail.");
 	}
+
+	fn should_set_dapps_addresses() {
+		// given
+		let ap = AccountProvider::transient_provider();
+		let app = "app1".to_owned();
+
+		// when
+		ap.set_dapps_addresses(app.clone(), vec![1.into(), 2.into()]).unwrap();
+
+		// then
+		assert_eq!(ap.dapps_addresses(app.clone()).unwrap(), vec![1.into(), 2.into()]);
+	}
 }

ethcore/src/account_provider/stores.rs

@@ -0,0 +1,271 @@
+// Copyright 2015, 2016 Ethcore (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Address Book and Dapps Settings Store
+
+use std::{fs, fmt, hash, ops};
+use std::collections::HashMap;
+use std::path::PathBuf;
+
+use ethstore::ethkey::Address;
+use ethjson::misc::{AccountMeta, DappsSettings as JsonSettings};
+use account_provider::DappId;
+
+/// Disk-backed map from Address to String. Uses JSON.
+pub struct AddressBook {
+	cache: DiskMap<Address, AccountMeta>,
+}
+
+impl AddressBook {
+	/// Creates new address book at given directory.
+	pub fn new(path: String) -> Self {
+		let mut r = AddressBook {
+			cache: DiskMap::new(path, "address_book.json".into())
+		};
+		r.cache.revert(AccountMeta::read_address_map);
+		r
+	}
+
+	/// Creates transient address book (no changes are saved to disk).
+	pub fn transient() -> Self {
+		AddressBook {
+			cache: DiskMap::transient()
+		}
+	}
+
+	/// Get the address book.
+	pub fn get(&self) -> HashMap<Address, AccountMeta> {
+		self.cache.clone()
+	}
+
+	fn save(&self) {
+		self.cache.save(AccountMeta::write_address_map)
+	}
+
+	/// Sets new name for given address.
+	pub fn set_name(&mut self, a: Address, name: String) {
+		{
+			let mut x = self.cache.entry(a)
+				.or_insert_with(|| AccountMeta {name: Default::default(), meta: "{}".to_owned(), uuid: None});
+			x.name = name;
+		}
+		self.save();
+	}
+
+	/// Sets new meta for given address.
+	pub fn set_meta(&mut self, a: Address, meta: String) {
+		{
+			let mut x = self.cache.entry(a)
+				.or_insert_with(|| AccountMeta {name: "Anonymous".to_owned(), meta: Default::default(), uuid: None});
+			x.meta = meta;
+		}
+		self.save();
+	}
+
+	/// Removes an entry
+	pub fn remove(&mut self, a: Address) {
+		self.cache.remove(&a);
+		self.save();
+	}
+}
+
+/// Dapps user settings
+#[derive(Debug, Default, Clone, Eq, PartialEq)]
+pub struct DappsSettings {
+	/// A list of visible accounts
+	pub accounts: Vec<Address>,
+}
+
+impl From<JsonSettings> for DappsSettings {
+	fn from(s: JsonSettings) -> Self {
+		DappsSettings {
+			accounts: s.accounts.into_iter().map(Into::into).collect(),
+		}
+	}
+}
+
+impl From<DappsSettings> for JsonSettings {
+	fn from(s: DappsSettings) -> Self {
+		JsonSettings {
+			accounts: s.accounts.into_iter().map(Into::into).collect(),
+		}
+	}
+}
+
+/// Disk-backed map from DappId to Settings. Uses JSON.
+pub struct DappsSettingsStore {
+	cache: DiskMap<DappId, DappsSettings>,
+}
+
+impl DappsSettingsStore {
+	/// Creates new store at given directory path.
+	pub fn new(path: String) -> Self {
+		let mut r = DappsSettingsStore {
+			cache: DiskMap::new(path, "dapps_accounts.json".into())
+		};
+		r.cache.revert(JsonSettings::read_dapps_settings);
+		r
+	}
+
+	/// Creates transient store (no changes are saved to disk).
+	pub fn transient() -> Self {
+		DappsSettingsStore {
+			cache: DiskMap::transient()
+		}
+	}
+
+	/// Get copy of the dapps settings
+	pub fn get(&self) -> HashMap<DappId, DappsSettings> {
+		self.cache.clone()
+	}
+
+	fn save(&self) {
+		self.cache.save(JsonSettings::write_dapps_settings)
+	}
+
+	pub fn set_accounts(&mut self, id: DappId, accounts: Vec<Address>) {
+		{
+			let mut settings = self.cache.entry(id).or_insert_with(DappsSettings::default);
+			settings.accounts = accounts;
+		}
+		self.save();
+	}
+}
+
+/// Disk-serializable HashMap
+#[derive(Debug)]
+struct DiskMap<K: hash::Hash + Eq, V> {
+	path: PathBuf,
+	cache: HashMap<K, V>,
+	transient: bool,
+}
+
+impl<K: hash::Hash + Eq, V> ops::Deref for DiskMap<K, V> {
+	type Target = HashMap<K, V>;
+	fn deref(&self) -> &Self::Target {
+		&self.cache
+	}
+}
+
+impl<K: hash::Hash + Eq, V> ops::DerefMut for DiskMap<K, V> {
+	fn deref_mut(&mut self) -> &mut Self::Target {
+		&mut self.cache
+	}
+}
+
+impl<K: hash::Hash + Eq, V> DiskMap<K, V> {
+	pub fn new(path: String, file_name: String) -> Self {
+		trace!(target: "diskmap", "new({})", path);
+		let mut path: PathBuf = path.into();
+		path.push(file_name);
+		trace!(target: "diskmap", "path={:?}", path);
+		DiskMap {
+			path: path,
+			cache: HashMap::new(),
+			transient: false,
+		}
+	}
+
+	pub fn transient() -> Self {
+		let mut map = DiskMap::new(Default::default(), "diskmap.json".into());
+		map.transient = true;
+		map
+	}
+
+	fn revert<F, E>(&mut self, read: F) where
+		F: Fn(fs::File) -> Result<HashMap<K, V>, E>,
+		E: fmt::Display,
+	{
+		if self.transient { return; }
+		trace!(target: "diskmap", "revert {:?}", self.path);
+		let _ = fs::File::open(self.path.clone())
+			.map_err(|e| trace!(target: "diskmap", "Couldn't open disk map: {}", e))
+			.and_then(|f| read(f).map_err(|e| warn!(target: "diskmap", "Couldn't read disk map: {}", e)))
+			.and_then(|m| {
+				self.cache = m;
+				Ok(())
+			});
+	}
+
+	fn save<F, E>(&self, write: F) where
+		F: Fn(&HashMap<K, V>, &mut fs::File) -> Result<(), E>,
+		E: fmt::Display,
+	{
+		if self.transient { return; }
+		trace!(target: "diskmap", "save {:?}", self.path);
+		let _ = fs::File::create(self.path.clone())
+			.map_err(|e| warn!(target: "diskmap", "Couldn't open disk map for writing: {}", e))
+			.and_then(|mut f| {
+				write(&self.cache, &mut f).map_err(|e| warn!(target: "diskmap", "Couldn't write to disk map: {}", e))
+			});
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use super::{AddressBook, DappsSettingsStore, DappsSettings};
+	use std::collections::HashMap;
+	use ethjson::misc::AccountMeta;
+	use devtools::RandomTempPath;
+
+	#[test]
+	fn should_save_and_reload_address_book() {
+		let temp = RandomTempPath::create_dir();
+		let path = temp.as_str().to_owned();
+		let mut b = AddressBook::new(path.clone());
+		b.set_name(1.into(), "One".to_owned());
+		b.set_meta(1.into(), "{1:1}".to_owned());
+		let b = AddressBook::new(path);
+		assert_eq!(b.get(), hash_map![1.into() => AccountMeta{name: "One".to_owned(), meta: "{1:1}".to_owned(), uuid: None}]);
+	}
+
+	#[test]
+	fn should_save_and_reload_dapps_settings() {
+		// given
+		let temp = RandomTempPath::create_dir();
+		let path = temp.as_str().to_owned();
+		let mut b = DappsSettingsStore::new(path.clone());
+
+		// when
+		b.set_accounts("dappOne".into(), vec![1.into(), 2.into()]);
+
+		// then
+		let b = DappsSettingsStore::new(path);
+		assert_eq!(b.get(), hash_map![
+			"dappOne".into() => DappsSettings {
+				accounts: vec![1.into(), 2.into()],
+			}
+		]);
+	}
+
+	#[test]
+	fn should_remove_address() {
+		let temp = RandomTempPath::create_dir();
+		let path = temp.as_str().to_owned();
+		let mut b = AddressBook::new(path.clone());
+
+		b.set_name(1.into(), "One".to_owned());
+		b.set_name(2.into(), "Two".to_owned());
+		b.set_name(3.into(), "Three".to_owned());
+		b.remove(2.into());
+
+		let b = AddressBook::new(path);
+		assert_eq!(b.get(), hash_map![
+			1.into() => AccountMeta{name: "One".to_owned(), meta: "{}".to_owned(), uuid: None},
+			3.into() => AccountMeta{name: "Three".to_owned(), meta: "{}".to_owned(), uuid: None}
+		]);
+	}
+}

ethcore/src/blockchain/blockchain.rs

@@ -34,6 +34,7 @@ use blockchain::update::ExtrasUpdate;
 use blockchain::{CacheSize, ImportRoute, Config};
 use db::{self, Writable, Readable, CacheUpdatePolicy};
 use cache_manager::CacheManager;
+use engines::Engine;
 
 const LOG_BLOOMS_LEVELS: usize = 3;
 const LOG_BLOOMS_ELEMENTS_PER_INDEX: usize = 16;
@@ -198,6 +199,9 @@ pub struct BlockChain {
 	pending_block_hashes: RwLock<HashMap<BlockNumber, H256>>,
 	pending_block_details: RwLock<HashMap<H256, BlockDetails>>,
 	pending_transaction_addresses: RwLock<HashMap<H256, Option<TransactionAddress>>>,
+
+	// Used for block ordering.
+	engine: Arc<Engine>,
 }
 
 impl BlockProvider for BlockChain {
@@ -415,9 +419,8 @@ impl<'a> Iterator for AncestryIter<'a> {
 }
 
 impl BlockChain {
-	#[cfg_attr(feature="dev", allow(useless_let_if_seq))]
+	/// Create new instance of blockchain from given Genesis and block picking rules of Engine.
-	/// Create new instance of blockchain from given Genesis
+	pub fn new(config: Config, genesis: &[u8], db: Arc<Database>, engine: Arc<Engine>) -> BlockChain {
-	pub fn new(config: Config, genesis: &[u8], db: Arc<Database>) -> BlockChain {
 		// 400 is the avarage size of the key
 		let cache_man = CacheManager::new(config.pref_cache_size, config.max_cache_size, 400);
 
@@ -442,6 +445,7 @@ impl BlockChain {
 			pending_block_hashes: RwLock::new(HashMap::new()),
 			pending_block_details: RwLock::new(HashMap::new()),
 			pending_transaction_addresses: RwLock::new(HashMap::new()),
+			engine: engine,
 		};
 
 		// load best block
@@ -858,13 +862,12 @@ impl BlockChain {
 		let number = header.number();
 		let parent_hash = header.parent_hash();
 		let parent_details = self.block_details(&parent_hash).unwrap_or_else(|| panic!("Invalid parent hash: {:?}", parent_hash));
-		let total_difficulty = parent_details.total_difficulty + header.difficulty();
+		let is_new_best = self.engine.is_new_best_block(self.best_block_total_difficulty(), HeaderView::new(&self.best_block_header()), &parent_details, header);
-		let is_new_best = total_difficulty > self.best_block_total_difficulty();
 
 		BlockInfo {
 			hash: hash,
 			number: number,
-			total_difficulty: total_difficulty,
+			total_difficulty: parent_details.total_difficulty + header.difficulty(),
 			location: if is_new_best {
 				// on new best block we need to make sure that all ancestors
 				// are moved to "canon chain"
@@ -1319,11 +1322,16 @@ mod tests {
 	use views::BlockView;
 	use transaction::{Transaction, Action};
 	use log_entry::{LogEntry, LocalizedLogEntry};
+	use spec::Spec;
 
 	fn new_db(path: &str) -> Arc<Database> {
 		Arc::new(Database::open(&DatabaseConfig::with_columns(::db::NUM_COLUMNS), path).unwrap())
 	}
 
+	fn new_chain(genesis: &[u8], db: Arc<Database>) -> BlockChain {
+		BlockChain::new(Config::default(), genesis, db, Spec::new_null().engine) 
+	}
+
 	#[test]
 	fn should_cache_best_block() {
 		// given
@@ -1334,7 +1342,7 @@ mod tests {
 
 		let temp = RandomTempPath::new();
 		let db = new_db(temp.as_str());
-		let bc = BlockChain::new(Config::default(), &genesis, db.clone());
+		let bc = new_chain(&genesis, db.clone());
 		assert_eq!(bc.best_block_number(), 0);
 
 		// when
@@ -1360,7 +1368,7 @@ mod tests {
 
 		let temp = RandomTempPath::new();
 		let db = new_db(temp.as_str());
-		let bc = BlockChain::new(Config::default(), &genesis, db.clone());
+		let bc = new_chain(&genesis, db.clone());
 
 		assert_eq!(bc.genesis_hash(), genesis_hash.clone());
 		assert_eq!(bc.best_block_hash(), genesis_hash.clone());
@@ -1391,7 +1399,7 @@ mod tests {
 
 		let temp = RandomTempPath::new();
 		let db = new_db(temp.as_str());
-		let bc = BlockChain::new(Config::default(), &genesis, db.clone());
+		let bc = new_chain(&genesis, db.clone());
 
 		let mut block_hashes = vec![genesis_hash.clone()];
 		let mut batch = db.transaction();
@@ -1427,7 +1435,7 @@ mod tests {
 
 		let temp = RandomTempPath::new();
 		let db = new_db(temp.as_str());
-		let bc = BlockChain::new(Config::default(), &genesis, db.clone());
+		let bc = new_chain(&genesis, db.clone());
 
 		let mut batch =db.transaction();
 		for b in &[&b1a, &b1b, &b2a, &b2b, &b3a, &b3b, &b4a, &b4b, &b5a, &b5b] {
@@ -1489,7 +1497,7 @@ mod tests {
 
 		let temp = RandomTempPath::new();
 		let db = new_db(temp.as_str());
-		let bc = BlockChain::new(Config::default(), &genesis, db.clone());
+		let bc = new_chain(&genesis, db.clone());
 
 		let mut batch = db.transaction();
 		let _ = bc.insert_block(&mut batch, &b1a, vec![]);
@@ -1577,7 +1585,7 @@ mod tests {
 
 		let temp = RandomTempPath::new();
 		let db = new_db(temp.as_str());
-		let bc = BlockChain::new(Config::default(), &genesis, db.clone());
+		let bc = new_chain(&genesis, db.clone());
 
 		let mut batch = db.transaction();
 		let _ = bc.insert_block(&mut batch, &b1a, vec![]);
@@ -1639,7 +1647,7 @@ mod tests {
 
 		let temp = RandomTempPath::new();
 		let db = new_db(temp.as_str());
-		let bc = BlockChain::new(Config::default(), &genesis, db.clone());
+		let bc = new_chain(&genesis, db.clone());
 
 		let mut batch = db.transaction();
 		let ir1 = bc.insert_block(&mut batch, &b1, vec![]);
@@ -1755,7 +1763,7 @@ mod tests {
 		let temp = RandomTempPath::new();
 		{
 			let db = new_db(temp.as_str());
-			let bc = BlockChain::new(Config::default(), &genesis, db.clone());
+			let bc = new_chain(&genesis, db.clone());
 			assert_eq!(bc.best_block_hash(), genesis_hash);
 			let mut batch =db.transaction();
 			bc.insert_block(&mut batch, &first, vec![]);
@@ -1766,7 +1774,7 @@ mod tests {
 
 		{
 			let db = new_db(temp.as_str());
-			let bc = BlockChain::new(Config::default(), &genesis, db.clone());
+			let bc = new_chain(&genesis, db.clone());
 
 			assert_eq!(bc.best_block_hash(), first_hash);
 		}
@@ -1821,7 +1829,7 @@ mod tests {
 
 		let temp = RandomTempPath::new();
 		let db = new_db(temp.as_str());
-		let bc = BlockChain::new(Config::default(), &genesis, db.clone());
+		let bc = new_chain(&genesis, db.clone());
 		let mut batch =db.transaction();
 		bc.insert_block(&mut batch, &b1, vec![]);
 		db.write(batch).unwrap();
@@ -1881,7 +1889,7 @@ mod tests {
 
 		let temp = RandomTempPath::new();
 		let db = new_db(temp.as_str());
-		let bc = BlockChain::new(Config::default(), &genesis, db.clone());
+		let bc = new_chain(&genesis, db.clone());
 		insert_block(&db, &bc, &b1, vec![Receipt {
 			state_root: H256::default(),
 			gas_used: 10_000.into(),
@@ -1985,7 +1993,7 @@ mod tests {
 
 		let temp = RandomTempPath::new();
 		let db = new_db(temp.as_str());
-		let bc = BlockChain::new(Config::default(), &genesis, db.clone());
+		let bc = new_chain(&genesis, db.clone());
 
 		let blocks_b1 = bc.blocks_with_bloom(&bloom_b1, 0, 5);
 		let blocks_b2 = bc.blocks_with_bloom(&bloom_b2, 0, 5);
@@ -2042,7 +2050,7 @@ mod tests {
 
 		{
 			let db = new_db(temp.as_str());
-			let bc = BlockChain::new(Config::default(), &genesis, db.clone());
+			let bc = new_chain(&genesis, db.clone());
 			let uncle = canon_chain.fork(1).generate(&mut finalizer.fork()).unwrap();
 
 			let mut batch =db.transaction();
@@ -2061,7 +2069,7 @@ mod tests {
 
 		// re-loading the blockchain should load the correct best block.
 		let db = new_db(temp.as_str());
-		let bc = BlockChain::new(Config::default(), &genesis, db.clone());
+		let bc = new_chain(&genesis, db.clone());
 		assert_eq!(bc.best_block_number(), 5);
 	}
 
@@ -2078,7 +2086,7 @@ mod tests {
 
 		let temp = RandomTempPath::new();
 		let db = new_db(temp.as_str());
-		let bc = BlockChain::new(Config::default(), &genesis, db.clone());
+		let bc = new_chain(&genesis, db.clone());
 
 		let mut batch =db.transaction();
 		bc.insert_block(&mut batch, &first, vec![]);

ethcore/src/client/client.rs

@@ -52,7 +52,7 @@ use blockchain::{BlockChain, BlockProvider, TreeRoute, ImportRoute};
 use client::{
 	BlockID, TransactionID, UncleID, TraceId, ClientConfig, BlockChainClient,
 	MiningBlockChainClient, TraceFilter, CallAnalytics, BlockImportError, Mode,
-	ChainNotify,
+	ChainNotify, PruningInfo, ProvingBlockChainClient,
 };
 use client::Error as ClientError;
 use env_info::EnvInfo;
@@ -164,7 +164,7 @@ impl Client {
 		let gb = spec.genesis_block();
 
 		let db = Arc::new(try!(Database::open(&db_config, &path.to_str().expect("DB path could not be converted to string.")).map_err(ClientError::Database)));
-		let chain = Arc::new(BlockChain::new(config.blockchain.clone(), &gb, db.clone()));
+		let chain = Arc::new(BlockChain::new(config.blockchain.clone(), &gb, db.clone(), spec.engine.clone()));
 		let tracedb = RwLock::new(TraceDB::new(config.tracing.clone(), db.clone(), chain.clone()));
 
 		let trie_spec = match config.fat_db {
@@ -787,7 +787,7 @@ impl snapshot::DatabaseRestore for Client {
 
 		let cache_size = state_db.cache_size();
 		*state_db = StateDB::new(journaldb::new(db.clone(), self.pruning, ::db::COL_STATE), cache_size);
-		*chain = Arc::new(BlockChain::new(self.config.blockchain.clone(), &[], db.clone()));
+		*chain = Arc::new(BlockChain::new(self.config.blockchain.clone(), &[], db.clone(), self.engine.clone()));
 		*tracedb = TraceDB::new(self.config.tracing.clone(), db.clone(), chain.clone());
 		Ok(())
 	}
@@ -1272,7 +1272,7 @@ impl BlockChainClient for Client {
 		self.miner.pending_transactions(self.chain.read().best_block_number())
 	}
 
-	fn signing_network_id(&self) -> Option<u8> {
+	fn signing_network_id(&self) -> Option<u64> {
 		self.engine.signing_network_id(&self.latest_env_info())
 	}
 
@@ -1286,6 +1286,13 @@ impl BlockChainClient for Client {
 		self.uncle(id)
 			.map(|header| self.engine.extra_info(&decode(&header)))
 	}
+
+	fn pruning_info(&self) -> PruningInfo {
+		PruningInfo {
+			earliest_chain: self.chain.read().first_block_number().unwrap_or(1),
+			earliest_state: self.state_db.lock().journal_db().earliest_era().unwrap_or(0),
+		}
+	}
 }
 
 impl MiningBlockChainClient for Client {
@@ -1370,32 +1377,60 @@ impl MayPanic for Client {
 	}
 }
 
+impl ProvingBlockChainClient for Client {
+	fn prove_storage(&self, key1: H256, key2: H256, from_level: u32, id: BlockID) -> Vec<Bytes> {
+		self.state_at(id)
+			.and_then(move |state| state.prove_storage(key1, key2, from_level).ok())
+			.unwrap_or_else(Vec::new)
+	}
 
-#[test]
+	fn prove_account(&self, key1: H256, from_level: u32, id: BlockID) -> Vec<Bytes> {
-fn should_not_cache_details_before_commit() {
+		self.state_at(id)
-	use tests::helpers::*;
+			.and_then(move |state| state.prove_account(key1, from_level).ok())
-	use std::thread;
+			.unwrap_or_else(Vec::new)
-	use std::time::Duration;
+	}
-	use std::sync::atomic::{AtomicBool, Ordering};
 
-	let client = generate_dummy_client(0);
+	fn code_by_hash(&self, account_key: H256, id: BlockID) -> Bytes {
-	let genesis = client.chain_info().best_block_hash;
+		self.state_at(id)
-	let (new_hash, new_block) = get_good_dummy_block_hash();
+			.and_then(move |state| state.code_by_address_hash(account_key).ok())
-
+			.and_then(|x| x)
-	let go = {
+			.unwrap_or_else(Vec::new)
-		// Separate thread uncommited transaction
+	}
-		let go = Arc::new(AtomicBool::new(false));
-		let go_thread = go.clone();
-		let another_client = client.reference().clone();
-		thread::spawn(move || {
-			let mut batch = DBTransaction::new(&*another_client.chain.read().db().clone());
-			another_client.chain.read().insert_block(&mut batch, &new_block, Vec::new());
-			go_thread.store(true, Ordering::SeqCst);
-		});
-		go
-	};
-
-	while !go.load(Ordering::SeqCst) { thread::park_timeout(Duration::from_millis(5)); }
-
-	assert!(client.tree_route(&genesis, &new_hash).is_none());
 }
+
+#[cfg(test)]
+mod tests {
+
+	#[test]
+	fn should_not_cache_details_before_commit() {
+		use client::BlockChainClient;
+		use tests::helpers::*;
+
+		use std::thread;
+		use std::time::Duration;
+		use std::sync::Arc;
+		use std::sync::atomic::{AtomicBool, Ordering};
+		use util::kvdb::DBTransaction;
+
+		let client = generate_dummy_client(0);
+		let genesis = client.chain_info().best_block_hash;
+		let (new_hash, new_block) = get_good_dummy_block_hash();
+
+		let go = {
+			// Separate thread uncommited transaction
+			let go = Arc::new(AtomicBool::new(false));
+			let go_thread = go.clone();
+			let another_client = client.reference().clone();
+			thread::spawn(move || {
+				let mut batch = DBTransaction::new(&*another_client.chain.read().db().clone());
+				another_client.chain.read().insert_block(&mut batch, &new_block, Vec::new());
+				go_thread.store(true, Ordering::SeqCst);
+			});
+			go
+		};
+
+		while !go.load(Ordering::SeqCst) { thread::park_timeout(Duration::from_millis(5)); }
+
+		assert!(client.tree_route(&genesis, &new_hash).is_none());
+	}
+}

ethcore/src/client/mod.rs

@@ -25,18 +25,21 @@ mod client;
 pub use self::client::*;
 pub use self::config::{Mode, ClientConfig, DatabaseCompactionProfile, BlockChainConfig, VMType};
 pub use self::error::Error;
-pub use types::ids::*;
 pub use self::test_client::{TestBlockChainClient, EachBlockWith};
+pub use self::chain_notify::ChainNotify;
+pub use self::traits::{BlockChainClient, MiningBlockChainClient, ProvingBlockChainClient};
+
+pub use types::ids::*;
 pub use types::trace_filter::Filter as TraceFilter;
+pub use types::pruning_info::PruningInfo;
+pub use types::call_analytics::CallAnalytics;
+
 pub use executive::{Executed, Executive, TransactOptions};
 pub use env_info::{LastHashes, EnvInfo};
-pub use self::chain_notify::ChainNotify;
 
-pub use types::call_analytics::CallAnalytics;
 pub use block_import_error::BlockImportError;
 pub use transaction_import::TransactionImportResult;
 pub use transaction_import::TransactionImportError;
-pub use self::traits::{BlockChainClient, MiningBlockChainClient};
 pub use verification::VerifierType;
 
 /// IPC interfaces

ethcore/src/client/test_client.rs

@@ -38,6 +38,7 @@ use evm::{Factory as EvmFactory, VMType, Schedule};
 use miner::{Miner, MinerService, TransactionImportResult};
 use spec::Spec;
 use types::mode::Mode;
+use types::pruning_info::PruningInfo;
 use views::BlockView;
 
 use verification::queue::QueueInfo;
@@ -662,9 +663,16 @@ impl BlockChainClient for TestBlockChainClient {
 		self.miner.pending_transactions(self.chain_info().best_block_number)
 	}
 
-	fn signing_network_id(&self) -> Option<u8> { None }
+	fn signing_network_id(&self) -> Option<u64> { None }
 
 	fn mode(&self) -> Mode { Mode::Active }
 
 	fn set_mode(&self, _: Mode) { unimplemented!(); }
+
+	fn pruning_info(&self) -> PruningInfo {
+		PruningInfo {
+			earliest_chain: 1,
+			earliest_state: 1,
+		}
+	}
 }

ethcore/src/client/traits.rs

@@ -39,6 +39,7 @@ use types::call_analytics::CallAnalytics;
 use types::blockchain_info::BlockChainInfo;
 use types::block_status::BlockStatus;
 use types::mode::Mode;
+use types::pruning_info::PruningInfo;
 
 #[ipc(client_ident="RemoteClient")]
 /// Blockchain database client. Owns and manages a blockchain and a block queue.
@@ -237,7 +238,7 @@ pub trait BlockChainClient : Sync + Send {
 	}
 
 	/// Get the preferred network ID to sign on
-	fn signing_network_id(&self) -> Option<u8>;
+	fn signing_network_id(&self) -> Option<u64>;
 
 	/// Get the mode.
 	fn mode(&self) -> Mode;
@@ -250,10 +251,15 @@ pub trait BlockChainClient : Sync + Send {
 
 	/// Returns engine-related extra info for `UncleID`.
 	fn uncle_extra_info(&self, id: UncleID) -> Option<BTreeMap<String, String>>;
+
+	/// Returns information about pruning/data availability.
+	fn pruning_info(&self) -> PruningInfo;
 }
 
+impl IpcConfig for BlockChainClient { }
+
 /// Extended client interface used for mining
-pub trait MiningBlockChainClient : BlockChainClient {
+pub trait MiningBlockChainClient: BlockChainClient {
 	/// Returns OpenBlock prepared for closing.
 	fn prepare_open_block(&self,
 		author: Address,
@@ -271,4 +277,23 @@ pub trait MiningBlockChainClient : BlockChainClient {
 	fn latest_schedule(&self) -> Schedule;
 }
 
-impl IpcConfig for BlockChainClient { }
+/// Extended client interface for providing proofs of the state.
+pub trait ProvingBlockChainClient: BlockChainClient {
+	/// Prove account storage at a specific block id.
+	///
+	/// Both provided keys assume a secure trie.
+	/// Returns a vector of raw trie nodes (in order from the root) proving the storage query.
+	/// Nodes after `from_level` may be omitted.
+	/// An empty vector indicates unservable query.
+	fn prove_storage(&self, key1: H256, key2: H256, from_level: u32, id: BlockID) -> Vec<Bytes>;
+
+	/// Prove account existence at a specific block id.
+	/// The key is the keccak hash of the account's address.
+	/// Returns a vector of raw trie nodes (in order from the root) proving the query.
+	/// Nodes after `from_level` may be omitted.
+	/// An empty vector indicates unservable query.	
+	fn prove_account(&self, key1: H256, from_level: u32, id: BlockID) -> Vec<Bytes>;
+
+	/// Get code by address hash.
+	fn code_by_hash(&self, account_key: H256, id: BlockID) -> Bytes;
+}

ethcore/src/engines/authority_round.rs

@@ -21,13 +21,15 @@ use std::sync::Weak;
 use std::time::{UNIX_EPOCH, Duration};
 use util::*;
 use ethkey::{verify_address, Signature};
-use rlp::{UntrustedRlp, View, encode};
+use rlp::{UntrustedRlp, Rlp, View, encode};
 use account_provider::AccountProvider;
 use block::*;
 use spec::CommonParams;
 use engines::Engine;
 use header::Header;
 use error::{Error, BlockError};
+use blockchain::extras::BlockDetails;
+use views::HeaderView;
 use evm::Schedule;
 use ethjson;
 use io::{IoContext, IoHandler, TimerToken, IoService, IoChannel};
@@ -66,18 +68,20 @@ pub struct AuthorityRound {
 	params: CommonParams,
 	our_params: AuthorityRoundParams,
 	builtins: BTreeMap<Address, Builtin>,
-	transition_service: IoService<BlockArrived>,
+	transition_service: IoService<()>,
 	message_channel: Mutex<Option<IoChannel<ClientIoMessage>>>,
 	step: AtomicUsize,
 	proposed: AtomicBool,
+	account_provider: Mutex<Option<Arc<AccountProvider>>>,
+	password: RwLock<Option<String>>,
 }
 
 fn header_step(header: &Header) -> Result<usize, ::rlp::DecoderError> {
-	UntrustedRlp::new(&header.seal()[0]).as_val()
+	UntrustedRlp::new(&header.seal().get(0).expect("was either checked with verify_block_basic or is genesis; has 2 fields; qed (Make sure the spec file has a correct genesis seal)")).as_val()
 }
 
 fn header_signature(header: &Header) -> Result<Signature, ::rlp::DecoderError> {
-	UntrustedRlp::new(&header.seal()[1]).as_val::<H520>().map(Into::into)
+	UntrustedRlp::new(&header.seal().get(1).expect("was checked with verify_block_basic; has 2 fields; qed")).as_val::<H520>().map(Into::into)
 }
 
 trait AsMillis {
@@ -99,10 +103,12 @@ impl AuthorityRound {
 				params: params,
 				our_params: our_params,
 				builtins: builtins,
-				transition_service: try!(IoService::<BlockArrived>::start()),
+				transition_service: try!(IoService::<()>::start()),
 				message_channel: Mutex::new(None),
 				step: AtomicUsize::new(initial_step),
-				proposed: AtomicBool::new(false)
+				proposed: AtomicBool::new(false),
+				account_provider: Mutex::new(None),
+				password: RwLock::new(None),
 			});
 		let handler = TransitionHandler { engine: Arc::downgrade(&engine) };
 		try!(engine.transition_service.register_handler(Arc::new(handler)));
@@ -141,20 +147,17 @@ struct TransitionHandler {
 	engine: Weak<AuthorityRound>,
 }
 
-#[derive(Clone)]
-struct BlockArrived;
-
 const ENGINE_TIMEOUT_TOKEN: TimerToken = 23;
 
-impl IoHandler<BlockArrived> for TransitionHandler {
+impl IoHandler<()> for TransitionHandler {
-	fn initialize(&self, io: &IoContext<BlockArrived>) {
+	fn initialize(&self, io: &IoContext<()>) {
 		if let Some(engine) = self.engine.upgrade() {
 			io.register_timer_once(ENGINE_TIMEOUT_TOKEN, engine.remaining_step_duration().as_millis())
 				.unwrap_or_else(|e| warn!(target: "poa", "Failed to start consensus step timer: {}.", e))
 		}
 	}
 
-	fn timeout(&self, io: &IoContext<BlockArrived>, timer: TimerToken) {
+	fn timeout(&self, io: &IoContext<()>, timer: TimerToken) {
 		if timer == ENGINE_TIMEOUT_TOKEN {
 			if let Some(engine) = self.engine.upgrade() {
 				engine.step.fetch_add(1, AtomicOrdering::SeqCst);
@@ -206,10 +209,6 @@ impl Engine for AuthorityRound {
 		});
 	}
 
-	/// Apply the block reward on finalisation of the block.
-	/// This assumes that all uncles are valid uncles (i.e. of at least one generation before the current).
-	fn on_close_block(&self, _block: &mut ExecutedBlock) {}
-
 	fn is_sealer(&self, author: &Address) -> Option<bool> {
 		let p = &self.our_params;
 		Some(p.authorities.contains(author))
@@ -219,14 +218,14 @@ impl Engine for AuthorityRound {
 	///
 	/// This operation is synchronous and may (quite reasonably) not be available, in which `false` will
 	/// be returned.
-	fn generate_seal(&self, block: &ExecutedBlock, accounts: Option<&AccountProvider>) -> Option<Vec<Bytes>> {
+	fn generate_seal(&self, block: &ExecutedBlock) -> Option<Vec<Bytes>> {
 		if self.proposed.load(AtomicOrdering::SeqCst) { return None; }
 		let header = block.header();
 		let step = self.step();
 		if self.is_step_proposer(step, header.author()) {
-			if let Some(ap) = accounts {
+			if let Some(ref ap) = *self.account_provider.lock() {
 				// Account should be permanently unlocked, otherwise sealing will fail.
-				if let Ok(signature) = ap.sign(*header.author(), None, header.bare_hash()) {
+				if let Ok(signature) = ap.sign(*header.author(), self.password.read().clone(), header.bare_hash()) {
 					trace!(target: "poa", "generate_seal: Issuing a block for step {}.", step);
 					self.proposed.store(true, AtomicOrdering::SeqCst);
 					return Some(vec![encode(&step).to_vec(), encode(&(&*signature as &[u8])).to_vec()]);
@@ -272,7 +271,6 @@ impl Engine for AuthorityRound {
 	}
 
 	fn verify_block_family(&self, header: &Header, parent: &Header, _block: Option<&[u8]>) -> Result<(), Error> {
-		// Don't calculate difficulty for genesis blocks.
 		if header.number() == 0 {
 			return Err(From::from(BlockError::RidiculousNumber(OutOfBounds { min: Some(1), max: None, found: header.number() })));
 		}
@@ -284,10 +282,6 @@ impl Engine for AuthorityRound {
 			try!(Err(BlockError::DoubleVote(header.author().clone())));
 		}
 
-		// Check difficulty is correct given the two timestamps.
-		if header.difficulty() != parent.difficulty() {
-			return Err(From::from(BlockError::InvalidDifficulty(Mismatch { expected: *parent.difficulty(), found: *header.difficulty() })))
-		}
 		let gas_limit_divisor = self.our_params.gas_limit_bound_divisor;
 		let min_gas = parent.gas_limit().clone() - parent.gas_limit().clone() / gas_limit_divisor;
 		let max_gas = parent.gas_limit().clone() + parent.gas_limit().clone() / gas_limit_divisor;
@@ -306,9 +300,29 @@ impl Engine for AuthorityRound {
 		t.sender().map(|_|()) // Perform EC recovery and cache sender
 	}
 
+	fn is_new_best_block(&self, _best_total_difficulty: U256, best_header: HeaderView, _parent_details: &BlockDetails, new_header: &HeaderView) -> bool {
+		let new_number = new_header.number();
+		let best_number = best_header.number();
+		if new_number != best_number {
+			new_number > best_number
+		} else {
+ 			// Take the oldest step at given height.
+ 			let new_step: usize = Rlp::new(&new_header.seal()[0]).as_val();
+			let best_step: usize = Rlp::new(&best_header.seal()[0]).as_val();
+			new_step < best_step
+		}
+	}
+
 	fn register_message_channel(&self, message_channel: IoChannel<ClientIoMessage>) {
-		let mut guard = self.message_channel.lock();
+		*self.message_channel.lock() = Some(message_channel);
-		*guard = Some(message_channel);
+	}
+
+	fn set_signer(&self, _address: Address, password: String) {
+		*self.password.write() = Some(password);
+	}
+
+	fn register_account_provider(&self, account_provider: Arc<AccountProvider>) {
+		*self.account_provider.lock() = Some(account_provider);
 	}
 }
 
@@ -377,12 +391,11 @@ mod tests {
 	fn generates_seal_and_does_not_double_propose() {
 		let tap = AccountProvider::transient_provider();
 		let addr1 = tap.insert_account("1".sha3(), "1").unwrap();
-		tap.unlock_account_permanently(addr1, "1".into()).unwrap();
 		let addr2 = tap.insert_account("2".sha3(), "2").unwrap();
-		tap.unlock_account_permanently(addr2, "2".into()).unwrap();
 
 		let spec = Spec::new_test_round();
 		let engine = &*spec.engine;
+		engine.register_account_provider(Arc::new(tap));
 		let genesis_header = spec.genesis_header();
 		let mut db1 = get_temp_state_db().take();
 		spec.ensure_db_good(&mut db1, &TrieFactory::new(TrieSpec::Secure)).unwrap();
@@ -394,16 +407,18 @@ mod tests {
 		let b2 = OpenBlock::new(engine, Default::default(), false, db2, &genesis_header, last_hashes, addr2, (3141562.into(), 31415620.into()), vec![]).unwrap();
 		let b2 = b2.close_and_lock();
 
-		if let Some(seal) = engine.generate_seal(b1.block(), Some(&tap)) {
+		engine.set_signer(addr1, "1".into());
+		if let Some(seal) = engine.generate_seal(b1.block()) {
 			assert!(b1.clone().try_seal(engine, seal).is_ok());
 			// Second proposal is forbidden.
-			assert!(engine.generate_seal(b1.block(), Some(&tap)).is_none());
+			assert!(engine.generate_seal(b1.block()).is_none());
 		}
 
-		if let Some(seal) = engine.generate_seal(b2.block(), Some(&tap)) {
+		engine.set_signer(addr2, "2".into());
+		if let Some(seal) = engine.generate_seal(b2.block()) {
 			assert!(b2.clone().try_seal(engine, seal).is_ok());
 			// Second proposal is forbidden.
-			assert!(engine.generate_seal(b2.block(), Some(&tap)).is_none());
+			assert!(engine.generate_seal(b2.block()).is_none());
 		}
 	}
 

ethcore/src/engines/basic_authority.rs

@@ -58,6 +58,8 @@ pub struct BasicAuthority {
 	params: CommonParams,
 	our_params: BasicAuthorityParams,
 	builtins: BTreeMap<Address, Builtin>,
+	account_provider: Mutex<Option<Arc<AccountProvider>>>,
+	password: RwLock<Option<String>>,
 }
 
 impl BasicAuthority {
@@ -67,6 +69,8 @@ impl BasicAuthority {
 			params: params,
 			our_params: our_params,
 			builtins: builtins,
+			account_provider: Mutex::new(None),
+			password: RwLock::new(None),
 		}
 	}
 }
@@ -98,13 +102,8 @@ impl Engine for BasicAuthority {
 				max(gas_floor_target, gas_limit - gas_limit / bound_divisor + 1.into())
 			}
 		});
-//		info!("ethash: populate_from_parent #{}: difficulty={} and gas_limit={}", header.number, header.difficulty, header.gas_limit);
 	}
 
-	/// Apply the block reward on finalisation of the block.
-	/// This assumes that all uncles are valid uncles (i.e. of at least one generation before the current).
-	fn on_close_block(&self, _block: &mut ExecutedBlock) {}
-
 	fn is_sealer(&self, author: &Address) -> Option<bool> {
 		Some(self.our_params.authorities.contains(author))
 	}
@@ -113,12 +112,12 @@ impl Engine for BasicAuthority {
 	///
 	/// This operation is synchronous and may (quite reasonably) not be available, in which `false` will
 	/// be returned.
-	fn generate_seal(&self, block: &ExecutedBlock, accounts: Option<&AccountProvider>) -> Option<Vec<Bytes>> {
+	fn generate_seal(&self, block: &ExecutedBlock) -> Option<Vec<Bytes>> {
-		if let Some(ap) = accounts {
+		if let Some(ref ap) = *self.account_provider.lock() {
 			let header = block.header();
 			let message = header.bare_hash();
 			// account should be pernamently unlocked, otherwise sealing will fail
-			if let Ok(signature) = ap.sign(*block.header().author(), None, message) {
+			if let Ok(signature) = ap.sign(*block.header().author(), self.password.read().clone(), message) {
 				return Some(vec![::rlp::encode(&(&*signature as &[u8])).to_vec()]);
 			} else {
 				trace!(target: "basicauthority", "generate_seal: FAIL: accounts secret key unavailable");
@@ -179,6 +178,14 @@ impl Engine for BasicAuthority {
 	fn verify_transaction(&self, t: &SignedTransaction, _header: &Header) -> Result<(), Error> {
 		t.sender().map(|_|()) // Perform EC recovery and cache sender
 	}
+
+	fn set_signer(&self, _address: Address, password: String) {
+		*self.password.write() = Some(password);
+	}
+
+	fn register_account_provider(&self, ap: Arc<AccountProvider>) {
+		*self.account_provider.lock() = Some(ap);
+	}
 }
 
 #[cfg(test)]
@@ -250,10 +257,11 @@ mod tests {
 	fn can_generate_seal() {
 		let tap = AccountProvider::transient_provider();
 		let addr = tap.insert_account("".sha3(), "").unwrap();
-		tap.unlock_account_permanently(addr, "".into()).unwrap();
 
 		let spec = new_test_authority();
 		let engine = &*spec.engine;
+		engine.set_signer(addr, "".into());
+		engine.register_account_provider(Arc::new(tap));
 		let genesis_header = spec.genesis_header();
 		let mut db_result = get_temp_state_db();
 		let mut db = db_result.take();
@@ -261,7 +269,7 @@ mod tests {
 		let last_hashes = Arc::new(vec![genesis_header.hash()]);
 		let b = OpenBlock::new(engine, Default::default(), false, db, &genesis_header, last_hashes, addr, (3141562.into(), 31415620.into()), vec![]).unwrap();
 		let b = b.close_and_lock();
-		let seal = engine.generate_seal(b.block(), Some(&tap)).unwrap();
+		let seal = engine.generate_seal(b.block()).unwrap();
 		assert!(b.try_seal(engine, seal).is_ok());
 	}
 

ethcore/src/engines/instant_seal.rs

@@ -23,7 +23,6 @@ use spec::CommonParams;
 use evm::Schedule;
 use block::ExecutedBlock;
 use util::Bytes;
-use account_provider::AccountProvider;
 
 /// An engine which does not provide any consensus mechanism, just seals blocks internally.
 pub struct InstantSeal {
@@ -60,7 +59,7 @@ impl Engine for InstantSeal {
 
 	fn is_sealer(&self, _author: &Address) -> Option<bool> { Some(true) }
 
-	fn generate_seal(&self, _block: &ExecutedBlock, _accounts: Option<&AccountProvider>) -> Option<Vec<Bytes>> {
+	fn generate_seal(&self, _block: &ExecutedBlock) -> Option<Vec<Bytes>> {
 		Some(Vec::new())
 	}
 }
@@ -70,16 +69,12 @@ mod tests {
 	use util::*;
 	use util::trie::TrieSpec;
 	use tests::helpers::*;
-	use account_provider::AccountProvider;
 	use spec::Spec;
 	use header::Header;
 	use block::*;
 
 	#[test]
 	fn instant_can_seal() {
-		let tap = AccountProvider::transient_provider();
-		let addr = tap.insert_account("".sha3(), "").unwrap();
-
 		let spec = Spec::new_instant();
 		let engine = &*spec.engine;
 		let genesis_header = spec.genesis_header();
@@ -87,10 +82,9 @@ mod tests {
 		let mut db = db_result.take();
 		spec.ensure_db_good(&mut db, &TrieFactory::new(TrieSpec::Secure)).unwrap();
 		let last_hashes = Arc::new(vec![genesis_header.hash()]);
-		let b = OpenBlock::new(engine, Default::default(), false, db, &genesis_header, last_hashes, addr, (3141562.into(), 31415620.into()), vec![]).unwrap();
+		let b = OpenBlock::new(engine, Default::default(), false, db, &genesis_header, last_hashes, Address::default(), (3141562.into(), 31415620.into()), vec![]).unwrap();
 		let b = b.close_and_lock();
-		// Seal with empty AccountProvider.
+		let seal = engine.generate_seal(b.block()).unwrap();
-		let seal = engine.generate_seal(b.block(), Some(&tap)).unwrap();
 		assert!(b.try_seal(engine, seal).is_ok());
 	}
 

ethcore/src/engines/mod.rs

@@ -38,6 +38,9 @@ use io::IoChannel;
 use service::ClientIoMessage;
 use header::Header;
 use transaction::SignedTransaction;
+use ethereum::ethash;
+use blockchain::extras::BlockDetails;
+use views::HeaderView;
 
 /// A consensus mechanism for the chain. Generally either proof-of-work or proof-of-stake-based.
 /// Provides hooks into each of the major parts of block import.
@@ -91,7 +94,7 @@ pub trait Engine : Sync + Send {
 	///
 	/// This operation is synchronous and may (quite reasonably) not be available, in which None will
 	/// be returned.
-	fn generate_seal(&self, _block: &ExecutedBlock, _accounts: Option<&AccountProvider>) -> Option<Vec<Bytes>> { None }
+	fn generate_seal(&self, _block: &ExecutedBlock) -> Option<Vec<Bytes>> { None }
 
 	/// Phase 1 quick block verification. Only does checks that are cheap. `block` (the header's full block)
 	/// may be provided for additional checks. Returns either a null `Ok` or a general error detailing the problem with import.
@@ -113,7 +116,7 @@ pub trait Engine : Sync + Send {
 	fn verify_transaction(&self, _t: &SignedTransaction, _header: &Header) -> Result<(), Error> { Ok(()) }
 
 	/// The network ID that transactions should be signed with.
-	fn signing_network_id(&self, _env_info: &EnvInfo) -> Option<u8> { None }
+	fn signing_network_id(&self, _env_info: &EnvInfo) -> Option<u64> { None }
 
 	/// Verify the seal of a block. This is an auxilliary method that actually just calls other `verify_` methods
 	/// to get the job done. By default it must pass `verify_basic` and `verify_block_unordered`. If more or fewer
@@ -144,7 +147,17 @@ pub trait Engine : Sync + Send {
 		self.builtins().get(a).expect("attempted to execute nonexistent builtin").execute(input, output);
 	}
 
+	/// Check if new block should be chosen as the one  in chain.
+	fn is_new_best_block(&self, best_total_difficulty: U256, _best_header: HeaderView, parent_details: &BlockDetails, new_header: &HeaderView) -> bool {
+		ethash::is_new_best_block(best_total_difficulty, parent_details, new_header)
+	}
+
+	/// Register an account which signs consensus messages.
+	fn set_signer(&self, _address: Address, _password: String) {}
+
 	/// Add a channel for communication with Client which can be used for sealing.
 	fn register_message_channel(&self, _message_channel: IoChannel<ClientIoMessage>) {}
-	// TODO: sealing stuff - though might want to leave this for later.
+
+	/// Add an account provider useful for Engines that sign stuff.
+	fn register_account_provider(&self, _account_provider: Arc<AccountProvider>) {}
 }

ethcore/src/engines/null_engine.rs

@@ -38,6 +38,12 @@ impl NullEngine {
 	}
 }
 
+impl Default for NullEngine {
+	fn default() -> Self {
+		Self::new(Default::default(), Default::default())
+	}
+}
+
 impl Engine for NullEngine {
 	fn name(&self) -> &str {
 		"NullEngine"

ethcore/src/ethereum/ethash.rs

@@ -21,6 +21,7 @@ use builtin::Builtin;
 use env_info::EnvInfo;
 use error::{BlockError, TransactionError, Error};
 use header::Header;
+use views::HeaderView;
 use state::CleanupMode;
 use spec::CommonParams;
 use transaction::SignedTransaction;
@@ -28,6 +29,7 @@ use engines::Engine;
 use evm::Schedule;
 use ethjson;
 use rlp::{self, UntrustedRlp, View};
+use blockchain::extras::BlockDetails;
 
 /// Ethash params.
 #[derive(Debug, PartialEq)]
@@ -163,9 +165,9 @@ impl Engine for Ethash {
 		}
 	}
 
-	fn signing_network_id(&self, env_info: &EnvInfo) -> Option<u8> {
+	fn signing_network_id(&self, env_info: &EnvInfo) -> Option<u64> {
-		if env_info.number >= self.ethash_params.eip155_transition && self.params().network_id < 127 {
+		if env_info.number >= self.ethash_params.eip155_transition {
-			Some(self.params().network_id as u8)
+			Some(self.params().network_id)
 		} else {
 			None
 		}
@@ -314,7 +316,7 @@ impl Engine for Ethash {
 		}
 
 		if let Some(n) = t.network_id() {
-			if header.number() < self.ethash_params.eip155_transition || n as usize != self.params().network_id {
+			if header.number() < self.ethash_params.eip155_transition || n != self.params().network_id {
 				return Err(TransactionError::InvalidNetworkId.into())
 			}
 		}
@@ -325,6 +327,15 @@ impl Engine for Ethash {
 	fn verify_transaction(&self, t: &SignedTransaction, _header: &Header) -> Result<(), Error> {
 		t.sender().map(|_|()) // Perform EC recovery and cache sender
 	}
+
+	fn is_new_best_block(&self, best_total_difficulty: U256, _best_header: HeaderView, parent_details: &BlockDetails, new_header: &HeaderView) -> bool {
+		is_new_best_block(best_total_difficulty, parent_details, new_header)
+	}
+}
+
+/// Check if a new block should replace the best blockchain block.
+pub fn is_new_best_block(best_total_difficulty: U256, parent_details: &BlockDetails, new_header: &HeaderView) -> bool {
+	parent_details.total_difficulty + new_header.difficulty() > best_total_difficulty
 }
 
 #[cfg_attr(feature="dev", allow(wrong_self_convention))]

ethcore/src/miner/miner.rs

@@ -19,7 +19,7 @@ use std::time::{Instant, Duration};
 
 use util::*;
 use util::using_queue::{UsingQueue, GetAction};
-use account_provider::AccountProvider;
+use account_provider::{AccountProvider, Error as AccountError};
 use views::{BlockView, HeaderView};
 use header::Header;
 use state::{State, CleanupMode};
@@ -464,15 +464,12 @@ impl Miner {
 	/// Attempts to perform internal sealing (one that does not require work) to return Ok(sealed),
 	/// Err(Some(block)) returns for unsuccesful sealing while Err(None) indicates misspecified engine.
 	fn seal_block_internally(&self, block: ClosedBlock) -> Result<SealedBlock, Option<ClosedBlock>> {
-		trace!(target: "miner", "seal_block_internally: block has transaction - attempting internal seal.");
+		trace!(target: "miner", "seal_block_internally: attempting internal seal.");
-		let s = self.engine.generate_seal(block.block(), match self.accounts {
+		let s = self.engine.generate_seal(block.block());
-			Some(ref x) => Some(&**x),
-			None => None,
-		});
 		if let Some(seal) = s {
 			trace!(target: "miner", "seal_block_internally: managed internal seal. importing...");
-			block.lock().try_seal(&*self.engine, seal).or_else(|_| {
+			block.lock().try_seal(&*self.engine, seal).or_else(|(e, _)| {
-				warn!("prepare_sealing: ERROR: try_seal failed when given internally generated seal. WTF?");
+				warn!("prepare_sealing: ERROR: try_seal failed when given internally generated seal: {}", e);
 				Err(None)
 			})
 		} else {
@@ -485,7 +482,7 @@ impl Miner {
 	fn seal_and_import_block_internally(&self, chain: &MiningBlockChainClient, block: ClosedBlock) -> bool {
 		if !block.transactions().is_empty() || self.forced_sealing() {
 			if let Ok(sealed) = self.seal_block_internally(block) {
-				if chain.import_block(sealed.rlp_bytes()).is_ok() {
+				if chain.import_sealed_block(sealed).is_ok() {
 					trace!(target: "miner", "import_block_internally: imported internally sealed block");
 					return true
 				}
@@ -740,6 +737,19 @@ impl MinerService for Miner {
 		*self.author.write() = author;
 	}
 
+	fn set_engine_signer(&self, address: Address, password: String) -> Result<(), AccountError> {
+		if self.seals_internally {
+			if let Some(ref ap) = self.accounts {
+				try!(ap.sign(address.clone(), Some(password.clone()), Default::default()));
+			}
+			let mut sealing_work = self.sealing_work.lock();
+			sealing_work.enabled = self.engine.is_sealer(&address).unwrap_or(false);
+			*self.author.write() = address;
+			self.engine.set_signer(address, password);
+		}
+		Ok(())
+	}
+
 	fn set_extra_data(&self, extra_data: Bytes) {
 		*self.extra_data.write() = extra_data;
 	}
@@ -1042,7 +1052,7 @@ impl MinerService for Miner {
 		ret.map(f)
 	}
 
-	fn submit_seal(&self, chain: &MiningBlockChainClient, pow_hash: H256, seal: Vec<Bytes>) -> Result<(), Error> {
+	fn submit_seal(&self, chain: &MiningBlockChainClient, block_hash: H256, seal: Vec<Bytes>) -> Result<(), Error> {
 		let result =
 			if let Some(b) = self.sealing_work.lock().queue.get_used_if(
 				if self.options.enable_resubmission {
@@ -1050,22 +1060,22 @@ impl MinerService for Miner {
 				} else {
 					GetAction::Take
 				},
-				|b| &b.hash() == &pow_hash
+				|b| &b.hash() == &block_hash
 			) {
-				trace!(target: "miner", "Sealing block {}={}={} with seal {:?}", pow_hash, b.hash(), b.header().bare_hash(), seal);
+				trace!(target: "miner", "Submitted block {}={}={} with seal {:?}", block_hash, b.hash(), b.header().bare_hash(), seal);
 				b.lock().try_seal(&*self.engine, seal).or_else(|(e, _)| {
 					warn!(target: "miner", "Mined solution rejected: {}", e);
 					Err(Error::PowInvalid)
 				})
 			} else {
-				warn!(target: "miner", "Mined solution rejected: Block unknown or out of date.");
+				warn!(target: "miner", "Submitted solution rejected: Block unknown or out of date.");
 				Err(Error::PowHashInvalid)
 			};
 		result.and_then(|sealed| {
 			let n = sealed.header().number();
 			let h = sealed.header().hash();
 			try!(chain.import_sealed_block(sealed));
-			info!(target: "miner", "Mined block imported OK. #{}: {}", Colour::White.bold().paint(format!("{}", n)), Colour::White.bold().paint(h.hex()));
+			info!(target: "miner", "Submitted block imported OK. #{}: {}", Colour::White.bold().paint(format!("{}", n)), Colour::White.bold().paint(h.hex()));
 			Ok(())
 		})
 	}

ethcore/src/miner/mod.rs

@@ -76,6 +76,9 @@ pub trait MinerService : Send + Sync {
 	/// Set the author that we will seal blocks as.
 	fn set_author(&self, author: Address);
 
+	/// Set info necessary to sign consensus messages.
+	fn set_engine_signer(&self, address: Address, password: String) -> Result<(), ::account_provider::Error>;
+
 	/// Get the extra_data that we will seal blocks with.
 	fn extra_data(&self) -> Bytes;
 

ethcore/src/snapshot/service.rs

@@ -81,6 +81,7 @@ struct Restoration {
 struct RestorationParams<'a> {
 	manifest: ManifestData, // manifest to base restoration on.
 	pruning: Algorithm, // pruning algorithm for the database.
+	engine: Arc<Engine>, // consensus engine of the chain.
 	db_path: PathBuf, // database path
 	db_config: &'a DatabaseConfig, // configuration for the database.
 	writer: Option<LooseWriter>, // writer for recovered snapshot.
@@ -99,7 +100,7 @@ impl Restoration {
 		let raw_db = Arc::new(try!(Database::open(params.db_config, &*params.db_path.to_string_lossy())
 			.map_err(UtilError::SimpleString)));
 
-		let chain = BlockChain::new(Default::default(), params.genesis, raw_db.clone());
+		let chain = BlockChain::new(Default::default(), params.genesis, raw_db.clone(), params.engine);
 		let blocks = try!(BlockRebuilder::new(chain, raw_db.clone(), &manifest));
 
 		let root = manifest.state_root.clone();
@@ -420,6 +421,7 @@ impl Service {
 		let params = RestorationParams {
 			manifest: manifest,
 			pruning: self.pruning,
+			engine: self.engine.clone(),
 			db_path: self.restoration_db(),
 			db_config: &self.db_config,
 			writer: writer,

ethcore/src/snapshot/tests/blocks.rs

@@ -37,13 +37,14 @@ fn chunk_and_restore(amount: u64) {
 	let genesis = canon_chain.generate(&mut finalizer).unwrap();
 	let db_cfg = DatabaseConfig::with_columns(::db::NUM_COLUMNS);
 
+	let engine = Arc::new(::engines::NullEngine::default());
 	let orig_path = RandomTempPath::create_dir();
 	let new_path = RandomTempPath::create_dir();
 	let mut snapshot_path = new_path.as_path().to_owned();
 	snapshot_path.push("SNAP");
 
 	let old_db = Arc::new(Database::open(&db_cfg, orig_path.as_str()).unwrap());
-	let bc = BlockChain::new(Default::default(), &genesis, old_db.clone());
+	let bc = BlockChain::new(Default::default(), &genesis, old_db.clone(), engine.clone());
 
 	// build the blockchain.
 	let mut batch = old_db.transaction();
@@ -73,21 +74,20 @@ fn chunk_and_restore(amount: u64) {
 
 	// restore it.
 	let new_db = Arc::new(Database::open(&db_cfg, new_path.as_str()).unwrap());
-	let new_chain = BlockChain::new(Default::default(), &genesis, new_db.clone());
+	let new_chain = BlockChain::new(Default::default(), &genesis, new_db.clone(), engine.clone());
 	let mut rebuilder = BlockRebuilder::new(new_chain, new_db.clone(), &manifest).unwrap();
 	let reader = PackedReader::new(&snapshot_path).unwrap().unwrap();
-	let engine = ::engines::NullEngine::new(Default::default(), Default::default());
 	let flag = AtomicBool::new(true);
 	for chunk_hash in &reader.manifest().block_hashes {
 		let compressed = reader.chunk(*chunk_hash).unwrap();
 		let chunk = snappy::decompress(&compressed).unwrap();
-		rebuilder.feed(&chunk, &engine, &flag).unwrap();
+		rebuilder.feed(&chunk, engine.as_ref(), &flag).unwrap();
 	}
 
 	rebuilder.finalize(HashMap::new()).unwrap();
 
 	// and test it.
-	let new_chain = BlockChain::new(Default::default(), &genesis, new_db);
+	let new_chain = BlockChain::new(Default::default(), &genesis, new_db, engine);
 	assert_eq!(new_chain.best_block_hash(), best_hash);
 }
 
@@ -121,8 +121,8 @@ fn checks_flag() {
 
 	let db_cfg = DatabaseConfig::with_columns(::db::NUM_COLUMNS);
 	let db = Arc::new(Database::open(&db_cfg, path.as_str()).unwrap());
-	let chain = BlockChain::new(Default::default(), &genesis, db.clone());
+	let engine = Arc::new(::engines::NullEngine::default());
-	let engine = ::engines::NullEngine::new(Default::default(), Default::default());
+	let chain = BlockChain::new(Default::default(), &genesis, db.clone(), engine.clone());
 
 	let manifest = ::snapshot::ManifestData {
 		state_hashes: Vec::new(),
@@ -134,8 +134,8 @@ fn checks_flag() {
 
 	let mut rebuilder = BlockRebuilder::new(chain, db.clone(), &manifest).unwrap();
 
-	match rebuilder.feed(&chunk, &engine, &AtomicBool::new(false)) {
+	match rebuilder.feed(&chunk, engine.as_ref(), &AtomicBool::new(false)) {
 		Err(Error::Snapshot(SnapshotError::RestorationAborted)) => {}
 		_ => panic!("Wrong result on abort flag set")
 	}
-}
+}

ethcore/src/spec/seal.rs

@@ -30,11 +30,9 @@ pub struct Ethereum {
 
 impl Into<Generic> for Ethereum {
 	fn into(self) -> Generic {
-		let mut s = RlpStream::new();
+		let mut s = RlpStream::new_list(2);
-		s.append(&self.mix_hash);
+		s.append(&self.mix_hash).append(&self.nonce);
-		s.append(&self.nonce);
 		Generic {
-			fields: 2,
 			rlp: s.out()
 		}
 	}
@@ -42,8 +40,6 @@ impl Into<Generic> for Ethereum {
 
 /// Generic seal.
 pub struct Generic {
-	/// Number of seal fields.
-	pub fields: usize,
 	/// Seal rlp.
 	pub rlp: Vec<u8>,
 }
@@ -64,7 +60,6 @@ impl From<ethjson::spec::Seal> for Seal {
 				mix_hash: eth.mix_hash.into()
 			}),
 			ethjson::spec::Seal::Generic(g) => Seal::Generic(Generic {
-				fields: g.fields,
 				rlp: g.rlp.into()
 			})
 		}

ethcore/src/spec/spec.rs

@@ -30,15 +30,14 @@ use ethjson;
 use rlp::{Rlp, RlpStream, View, Stream};
 
 /// Parameters common to all engines.
-#[derive(Debug, PartialEq, Clone)]
+#[derive(Debug, PartialEq, Clone, Default)]
-#[cfg_attr(test, derive(Default))]
 pub struct CommonParams {
 	/// Account start nonce.
 	pub account_start_nonce: U256,
 	/// Maximum size of extra data.
 	pub maximum_extra_data_size: usize,
 	/// Network id.
-	pub network_id: usize,
+	pub network_id: u64,
 	/// Main subprotocol name.
 	pub subprotocol_name: String,
 	/// Minimum gas limit.
@@ -94,8 +93,6 @@ pub struct Spec {
 	pub receipts_root: H256,
 	/// The genesis block's extra data field.
 	pub extra_data: Bytes,
-	/// The number of seal fields in the genesis block.
-	pub seal_fields: usize,
 	/// Each seal field, expressed as RLP, concatenated.
 	pub seal_rlp: Bytes,
 
@@ -127,7 +124,6 @@ impl From<ethjson::spec::Spec> for Spec {
 			gas_used: g.gas_used,
 			timestamp: g.timestamp,
 			extra_data: g.extra_data,
-			seal_fields: seal.fields,
 			seal_rlp: seal.rlp,
 			state_root_memo: RwLock::new(g.state_root),
 			genesis_state: From::from(s.accounts),
@@ -167,7 +163,7 @@ impl Spec {
 	pub fn nodes(&self) -> &[String] { &self.nodes }
 
 	/// Get the configured Network ID.
-	pub fn network_id(&self) -> usize { self.params.network_id }
+	pub fn network_id(&self) -> u64 { self.params.network_id }
 
 	/// Get the configured subprotocol name.
 	pub fn subprotocol_name(&self) -> String { self.params.subprotocol_name.clone() }
@@ -192,13 +188,8 @@ impl Spec {
 		header.set_gas_limit(self.gas_limit.clone());
 		header.set_difficulty(self.difficulty.clone());
 		header.set_seal({
-			let seal = {
+			let r = Rlp::new(&self.seal_rlp);
-				let mut s = RlpStream::new_list(self.seal_fields);
+			r.iter().map(|f| f.as_raw().to_vec()).collect()
-				s.append_raw(&self.seal_rlp, self.seal_fields);
-				s.out()
-			};
-			let r = Rlp::new(&seal);
-			(0..self.seal_fields).map(|i| r.at(i).as_raw().to_vec()).collect()
 		});
 		trace!(target: "spec", "Header hash is {}", header.hash());
 		header
@@ -227,7 +218,6 @@ impl Spec {
 		self.gas_used = g.gas_used;
 		self.timestamp = g.timestamp;
 		self.extra_data = g.extra_data;
-		self.seal_fields = seal.fields;
 		self.seal_rlp = seal.rlp;
 		self.state_root_memo = RwLock::new(g.state_root);
 	}

ethcore/src/state/account.rs

@@ -436,6 +436,27 @@ impl Account {
 	}
 }
 
+// light client storage proof.
+impl Account {
+	/// Prove a storage key's existence or nonexistence in the account's storage
+	/// trie.
+	/// `storage_key` is the hash of the desired storage key, meaning
+	/// this will only work correctly under a secure trie.
+	/// Returns a merkle proof of the storage trie node with all nodes before `from_level`
+	/// omitted.
+	pub fn prove_storage(&self, db: &HashDB, storage_key: H256, from_level: u32) -> Result<Vec<Bytes>, Box<TrieError>> {
+		use util::trie::{Trie, TrieDB};
+		use util::trie::recorder::{Recorder, BasicRecorder as TrieRecorder};
+
+		let mut recorder = TrieRecorder::with_depth(from_level);
+
+		let trie = try!(TrieDB::new(db, &self.storage_root));
+		let _ = try!(trie.get_recorded(&storage_key, &mut recorder));
+
+		Ok(recorder.drain().into_iter().map(|r| r.data).collect())
+	}
+}
+
 impl fmt::Debug for Account {
 	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 		write!(f, "{:?}", PodAccount::from_account(self))

ethcore/src/tests/helpers.rs

@@ -286,7 +286,7 @@ fn new_db(path: &str) -> Arc<Database> {
 pub fn generate_dummy_blockchain(block_number: u32) -> GuardedTempResult<BlockChain> {
 	let temp = RandomTempPath::new();
 	let db = new_db(temp.as_str());
-	let bc = BlockChain::new(BlockChainConfig::default(), &create_unverifiable_block(0, H256::zero()), db.clone());
+	let bc = BlockChain::new(BlockChainConfig::default(), &create_unverifiable_block(0, H256::zero()), db.clone(), Spec::new_null().engine);
 
 	let mut batch = db.transaction();
 	for block_order in 1..block_number {
@@ -304,7 +304,7 @@ pub fn generate_dummy_blockchain(block_number: u32) -> GuardedTempResult<BlockCh
 pub fn generate_dummy_blockchain_with_extra(block_number: u32) -> GuardedTempResult<BlockChain> {
 	let temp = RandomTempPath::new();
 	let db = new_db(temp.as_str());
-	let bc = BlockChain::new(BlockChainConfig::default(), &create_unverifiable_block(0, H256::zero()), db.clone());
+	let bc = BlockChain::new(BlockChainConfig::default(), &create_unverifiable_block(0, H256::zero()), db.clone(), Spec::new_null().engine);
 
 
 	let mut batch = db.transaction();
@@ -323,7 +323,7 @@ pub fn generate_dummy_blockchain_with_extra(block_number: u32) -> GuardedTempRes
 pub fn generate_dummy_empty_blockchain() -> GuardedTempResult<BlockChain> {
 	let temp = RandomTempPath::new();
 	let db = new_db(temp.as_str());
-	let bc = BlockChain::new(BlockChainConfig::default(), &create_unverifiable_block(0, H256::zero()), db.clone());
+	let bc = BlockChain::new(BlockChainConfig::default(), &create_unverifiable_block(0, H256::zero()), db.clone(), Spec::new_null().engine);
 
 	GuardedTempResult::<BlockChain> {
 		_temp: temp,

ethcore/src/types/mod.rs.in

@@ -34,3 +34,4 @@ pub mod block_import_error;
 pub mod restoration_status;
 pub mod snapshot_manifest;
 pub mod mode;
+pub mod pruning_info;

ethcore/src/types/pruning_info.rs

@@ -0,0 +1,30 @@
+// Copyright 2015, 2016 Ethcore (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Information about portions of the state and chain which the client may serve.
+//!
+//! Currently assumes that a client will store everything past a certain point
+//! or everything. Will be extended in the future to support a definition
+//! of which portions of the ancient chain and current state trie are stored as well.
+
+/// Client pruning info. See module-level docs for more details.
+#[derive(Debug, Clone, Binary)]
+pub struct PruningInfo {
+	/// The first block which everything can be served after.
+	pub earliest_chain: u64,
+	/// The first block where state requests may be served.
+	pub earliest_state: u64,
+}

ethcore/src/types/transaction.rs

@@ -72,7 +72,7 @@ pub struct Transaction {
 
 impl Transaction {
 	/// Append object with a without signature into RLP stream
-	pub fn rlp_append_unsigned_transaction(&self, s: &mut RlpStream, network_id: Option<u8>) {
+	pub fn rlp_append_unsigned_transaction(&self, s: &mut RlpStream, network_id: Option<u64>) {
 		s.begin_list(if network_id.is_none() { 6 } else { 9 });
 		s.append(&self.nonce);
 		s.append(&self.gas_price);
@@ -140,26 +140,26 @@ impl From<ethjson::transaction::Transaction> for SignedTransaction {
 
 impl Transaction {
 	/// The message hash of the transaction.
-	pub fn hash(&self, network_id: Option<u8>) -> H256 {
+	pub fn hash(&self, network_id: Option<u64>) -> H256 {
 		let mut stream = RlpStream::new();
 		self.rlp_append_unsigned_transaction(&mut stream, network_id);
 		stream.out().sha3()
 	}
 
 	/// Signs the transaction as coming from `sender`.
-	pub fn sign(self, secret: &Secret, network_id: Option<u8>) -> SignedTransaction {
+	pub fn sign(self, secret: &Secret, network_id: Option<u64>) -> SignedTransaction {
 		let sig = ::ethkey::sign(secret, &self.hash(network_id))
 			.expect("data is valid and context has signing capabilities; qed");
 		self.with_signature(sig, network_id)
 	}
 
 	/// Signs the transaction with signature.
-	pub fn with_signature(self, sig: Signature, network_id: Option<u8>) -> SignedTransaction {
+	pub fn with_signature(self, sig: Signature, network_id: Option<u64>) -> SignedTransaction {
 		SignedTransaction {
 			unsigned: self,
 			r: sig.r().into(),
 			s: sig.s().into(),
-			v: sig.v() + if let Some(n) = network_id { 35 + n * 2 } else { 27 },
+			v: sig.v() as u64 + if let Some(n) = network_id { 35 + n * 2 } else { 27 },
 			hash: Cell::new(None),
 			sender: Cell::new(None),
 		}
@@ -211,7 +211,7 @@ pub struct SignedTransaction {
 	unsigned: Transaction,
 	/// The V field of the signature; the LS bit described which half of the curve our point falls
 	/// in. The MS bits describe which network this transaction is for. If 27/28, its for all networks.
-	v: u8,
+	v: u64,
 	/// The R field of the signature; helps describe the point on the curve.
 	r: U256,
 	/// The S field of the signature; helps describe the point on the curve.
@@ -302,10 +302,13 @@ impl SignedTransaction {
 	}
 
 	/// 0 if `v` would have been 27 under "Electrum" notation, 1 if 28 or 4 if invalid.
-	pub fn standard_v(&self) -> u8 { match self.v { v if v == 27 || v == 28 || v > 36 => (v - 1) % 2, _ => 4 } }
+	pub fn standard_v(&self) -> u8 { match self.v { v if v == 27 || v == 28 || v > 36 => ((v - 1) % 2) as u8, _ => 4 } }
+
+	/// The `v` value that appears in the RLP.
+	pub fn original_v(&self) -> u64 { self.v }
 
 	/// The network ID, or `None` if this is a global transaction.
-	pub fn network_id(&self) -> Option<u8> {
+	pub fn network_id(&self) -> Option<u64> {
 		match self.v {
 			v if v > 36 => Some((v - 35) / 2),
 			_ => None,

ethcore/src/verification/queue/mod.rs

@@ -17,7 +17,7 @@
 //! A queue of blocks. Sits between network or other I/O and the `BlockChain`.
 //! Sorts them ready for blockchain insertion.
 
-use std::thread::{JoinHandle, self};
+use std::thread::{self, JoinHandle};
 use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering as AtomicOrdering};
 use std::sync::{Condvar as SCondvar, Mutex as SMutex};
 use util::*;
@@ -53,6 +53,8 @@ pub struct Config {
 	/// Maximum heap memory to use.
 	/// When the limit is reached, is_full returns true.
 	pub max_mem_use: usize,
+	/// Settings for the number of verifiers and adaptation strategy.
+	pub verifier_settings: VerifierSettings,
 }
 
 impl Default for Config {
@@ -60,39 +62,35 @@ impl Default for Config {
 		Config {
 			max_queue_size: 30000,
 			max_mem_use: 50 * 1024 * 1024,
+			verifier_settings: VerifierSettings::default(),
 		}
 	}
 }
 
-struct VerifierHandle {
+/// Verifier settings.
-	deleting: Arc<AtomicBool>,
+#[derive(Debug, PartialEq, Clone)]
-	sleep: Arc<AtomicBool>,
+pub struct VerifierSettings {
-	thread: JoinHandle<()>,
+	/// Whether to scale amount of verifiers according to load.
+	// Todo: replace w/ strategy enum?
+	pub scale_verifiers: bool,
+	/// Beginning amount of verifiers.
+	pub num_verifiers: usize,
 }
 
-impl VerifierHandle {
+impl Default for VerifierSettings {
-	// signal to the verifier thread that it should sleep.
+	fn default() -> Self {
-	fn sleep(&self) {
+		VerifierSettings {
-		self.sleep.store(true, AtomicOrdering::SeqCst);
+			scale_verifiers: false,
+			num_verifiers: MAX_VERIFIERS,
+		}
 	}
+}
 
-	// signal to the verifier thread that it should wake up.
+// pool states
-	fn wake_up(&self) {
+enum State {
-		self.sleep.store(false, AtomicOrdering::SeqCst);
+	// all threads with id < inner value are to work.
-		self.thread.thread().unpark();
+	Work(usize),
-	}
+	Exit,
-
-	// signal to the verifier thread that it should conclude its
-	// operations.
-	fn conclude(&self) {
-		self.wake_up();
-		self.deleting.store(true, AtomicOrdering::Release);
-	}
-
-	// join the verifier thread.
-	fn join(self) {
-		self.thread.join().expect("Verifier thread panicked");
-	}
 }
 
 /// An item which is in the process of being verified.
@@ -131,7 +129,6 @@ pub struct VerificationQueue<K: Kind> {
 	engine: Arc<Engine>,
 	more_to_verify: Arc<SCondvar>,
 	verification: Arc<Verification<K>>,
-	verifiers: Mutex<(Vec<VerifierHandle>, usize)>,
 	deleting: Arc<AtomicBool>,
 	ready_signal: Arc<QueueSignal>,
 	empty: Arc<SCondvar>,
@@ -139,6 +136,9 @@ pub struct VerificationQueue<K: Kind> {
 	ticks_since_adjustment: AtomicUsize,
 	max_queue_size: usize,
 	max_mem_use: usize,
+	scale_verifiers: bool,
+	verifier_handles: Vec<JoinHandle<()>>,	
+	state: Arc<(Mutex<State>, Condvar)>,
 }
 
 struct QueueSignal {
@@ -221,43 +221,45 @@ impl<K: Kind> VerificationQueue<K> {
 		});
 		let empty = Arc::new(SCondvar::new());
 		let panic_handler = PanicHandler::new_in_arc();
+		let scale_verifiers = config.verifier_settings.scale_verifiers;
 
-		let max_verifiers = min(::num_cpus::get(), MAX_VERIFIERS);
+		let num_cpus = ::num_cpus::get();
-		let default_amount = max(::num_cpus::get(), 3) - 2;
+		let max_verifiers = min(num_cpus, MAX_VERIFIERS);
-		let mut verifiers = Vec::with_capacity(max_verifiers);
+		let default_amount = max(1, min(max_verifiers, config.verifier_settings.num_verifiers));		
+		let state = Arc::new((Mutex::new(State::Work(default_amount)), Condvar::new()));		
+		let mut verifier_handles = Vec::with_capacity(max_verifiers);
 
 		debug!(target: "verification", "Allocating {} verifiers, {} initially active", max_verifiers, default_amount);
+		debug!(target: "verification", "Verifier auto-scaling {}", if scale_verifiers { "enabled" } else { "disabled" });
 
 		for i in 0..max_verifiers {
 			debug!(target: "verification", "Adding verification thread #{}", i);
 
-			let deleting = deleting.clone();
 			let panic_handler = panic_handler.clone();
 			let verification = verification.clone();
 			let engine = engine.clone();
 			let wait = more_to_verify.clone();
 			let ready = ready_signal.clone();
 			let empty = empty.clone();
+			let state = state.clone();
 
-			// enable only the first few verifiers.
+			let handle = thread::Builder::new()
-			let sleep = if i < default_amount {
+				.name(format!("Verifier #{}", i))
-				Arc::new(AtomicBool::new(false))
+				.spawn(move || {
-			} else {
+					panic_handler.catch_panic(move || {
-				Arc::new(AtomicBool::new(true))
+						VerificationQueue::verify(
-			};
+							verification, 
-
+							engine, 
-			verifiers.push(VerifierHandle {
+							wait, 
-				deleting: deleting.clone(),
+							ready, 
-				sleep: sleep.clone(),
+							empty, 
-				thread: thread::Builder::new()
+							state,
-					.name(format!("Verifier #{}", i))
+							i,
-					.spawn(move || {
+						)
-						panic_handler.catch_panic(move || {
+					}).unwrap()
-							VerificationQueue::verify(verification, engine, wait, ready, deleting, empty, sleep)
+				})
-						}).unwrap()
+				.expect("Failed to create verifier thread.");
-					})
+			verifier_handles.push(handle);
-					.expect("Failed to create verifier thread.")
-			});
 		}
 
 		VerificationQueue {
@@ -266,13 +268,15 @@ impl<K: Kind> VerificationQueue<K> {
 			ready_signal: ready_signal,
 			more_to_verify: more_to_verify,
 			verification: verification,
-			verifiers: Mutex::new((verifiers, default_amount)),
 			deleting: deleting,
 			processing: RwLock::new(HashSet::new()),
 			empty: empty,
 			ticks_since_adjustment: AtomicUsize::new(0),
 			max_queue_size: max(config.max_queue_size, MIN_QUEUE_LIMIT),
 			max_mem_use: max(config.max_mem_use, MIN_MEM_LIMIT),
+			scale_verifiers: scale_verifiers,
+			verifier_handles: verifier_handles,
+			state: state,
 		}
 	}
 
@@ -281,23 +285,30 @@ impl<K: Kind> VerificationQueue<K> {
 		engine: Arc<Engine>,
 		wait: Arc<SCondvar>,
 		ready: Arc<QueueSignal>,
-		deleting: Arc<AtomicBool>,
 		empty: Arc<SCondvar>,
-		sleep: Arc<AtomicBool>,
+		state: Arc<(Mutex<State>, Condvar)>,
+		id: usize,
 	) {
-		while !deleting.load(AtomicOrdering::Acquire) {
+		loop {
+			// check current state.
 			{
-				while sleep.load(AtomicOrdering::SeqCst) {
+				let mut cur_state = state.0.lock();
-					trace!(target: "verification", "Verifier sleeping");
+				while let State::Work(x) = *cur_state {
-					::std::thread::park();
+					// sleep until this thread is required.
-					trace!(target: "verification", "Verifier waking up");
+					if id < x { break }
 
-					if deleting.load(AtomicOrdering::Acquire) {
+					debug!(target: "verification", "verifier {} sleeping", id);
-						return;
+					state.1.wait(&mut cur_state);
-					}
+					debug!(target: "verification", "verifier {} waking up", id);					
+				}
+
+				if let State::Exit = *cur_state { 
+					debug!(target: "verification", "verifier {} exiting", id);										
+					break;
 				}
 			}
 
+			// wait for work if empty.
 			{
 				let mut more_to_verify = verification.more_to_verify.lock().unwrap();
 
@@ -305,15 +316,22 @@ impl<K: Kind> VerificationQueue<K> {
 					empty.notify_all();
 				}
 
-				while verification.unverified.lock().is_empty() && !deleting.load(AtomicOrdering::Acquire) {
+				while verification.unverified.lock().is_empty() {
+					if let State::Exit = *state.0.lock() {
+						debug!(target: "verification", "verifier {} exiting", id);
+						return;
+					}
+
 					more_to_verify = wait.wait(more_to_verify).unwrap();
 				}
 
-				if deleting.load(AtomicOrdering::Acquire) {
+				if let State::Exit = *state.0.lock() {
+					debug!(target: "verification", "verifier {} exiting", id);										
 					return;
 				}
 			}
 
+			// do work.
 			let item = {
 				// acquire these locks before getting the item to verify.
 				let mut unverified = verification.unverified.lock();
@@ -568,6 +586,14 @@ impl<K: Kind> VerificationQueue<K> {
 		}
 	}
 
+	/// Get the current number of working verifiers.
+	pub fn num_verifiers(&self) -> usize {
+		match *self.state.0.lock() {
+			State::Work(x) => x,
+			State::Exit => panic!("state only set to exit on drop; queue live now; qed"),
+		}
+	}
+
 	/// Optimise memory footprint of the heap fields, and adjust the number of threads
 	/// to better suit the workload.
 	pub fn collect_garbage(&self) {
@@ -598,13 +624,15 @@ impl<K: Kind> VerificationQueue<K> {
 
 		self.processing.write().shrink_to_fit();
 
+		if !self.scale_verifiers { return }
+
 		if self.ticks_since_adjustment.fetch_add(1, AtomicOrdering::SeqCst) + 1 >= READJUSTMENT_PERIOD {
 			self.ticks_since_adjustment.store(0, AtomicOrdering::SeqCst);
 		} else {
 			return;
 		}
 
-		let current = self.verifiers.lock().1;
+		let current = self.num_verifiers();
 
 		let diff = (v_len - u_len).abs();
 		let total = v_len + u_len;
@@ -626,27 +654,14 @@ impl<K: Kind> VerificationQueue<K> {
 	// possible, never going over the amount of initially allocated threads
 	// or below 1.
 	fn scale_verifiers(&self, target: usize) {
-		let mut verifiers = self.verifiers.lock();
+		let current = self.num_verifiers();
-		let &mut (ref mut verifiers, ref mut verifier_count) = &mut *verifiers;
+		let target = min(self.verifier_handles.len(), target);
-
-		let target = min(verifiers.len(), target);
 		let target = max(1, target);
 
-		debug!(target: "verification", "Scaling from {} to {} verifiers", verifier_count, target);
+		debug!(target: "verification", "Scaling from {} to {} verifiers", current, target);
 
-		// scaling up
+		*self.state.0.lock() = State::Work(target);
-		for i in *verifier_count..target {
+		self.state.1.notify_all();
-			debug!(target: "verification", "Waking up verifier {}", i);
-			verifiers[i].wake_up();
-		}
-
-		// scaling down.
-		for i in target..*verifier_count {
-			debug!(target: "verification", "Putting verifier {} to sleep", i);
-			verifiers[i].sleep();
-		}
-
-		*verifier_count = target;
 	}
 }
 
@@ -660,22 +675,18 @@ impl<K: Kind> Drop for VerificationQueue<K> {
 	fn drop(&mut self) {
 		trace!(target: "shutdown", "[VerificationQueue] Closing...");
 		self.clear();
-		self.deleting.store(true, AtomicOrdering::Release);
+		self.deleting.store(true, AtomicOrdering::SeqCst);
 
-		let mut verifiers = self.verifiers.get_mut();
+		// set exit state; should be done before `more_to_verify` notification.
-		let mut verifiers = &mut verifiers.0;
+		*self.state.0.lock() = State::Exit;
-
+		self.state.1.notify_all();
-		// first pass to signal conclusion. must be done before
-		// notify or deadlock possible.
-		for handle in verifiers.iter() {
-			handle.conclude();
-		}
 
+		// wake up all threads waiting for more work.
 		self.more_to_verify.notify_all();
 
-		// second pass to join.
+		// wait for all verifier threads to join.
-		for handle in verifiers.drain(..) {
+		for thread in self.verifier_handles.drain(..) {
-			handle.join();
+			thread.join().expect("Propagating verifier thread panic on shutdown");
 		}
 
 		trace!(target: "shutdown", "[VerificationQueue] Closed.");
@@ -687,16 +698,21 @@ mod tests {
 	use util::*;
 	use io::*;
 	use spec::*;
-	use super::{BlockQueue, Config};
+	use super::{BlockQueue, Config, State};
 	use super::kind::blocks::Unverified;
 	use tests::helpers::*;
 	use error::*;
 	use views::*;
 
-	fn get_test_queue() -> BlockQueue {
+	// create a test block queue.
+	// auto_scaling enables verifier adjustment.
+	fn get_test_queue(auto_scale: bool) -> BlockQueue {
 		let spec = get_test_spec();
 		let engine = spec.engine;
-		BlockQueue::new(Config::default(), engine, IoChannel::disconnected(), true)
+
+		let mut config = Config::default();
+		config.verifier_settings.scale_verifiers = auto_scale;
+		BlockQueue::new(config, engine, IoChannel::disconnected(), true)
 	}
 
 	#[test]
@@ -709,7 +725,7 @@ mod tests {
 
 	#[test]
 	fn can_import_blocks() {
-		let queue = get_test_queue();
+		let queue = get_test_queue(false);
 		if let Err(e) = queue.import(Unverified::new(get_good_dummy_block())) {
 			panic!("error importing block that is valid by definition({:?})", e);
 		}
@@ -717,7 +733,7 @@ mod tests {
 
 	#[test]
 	fn returns_error_for_duplicates() {
-		let queue = get_test_queue();
+		let queue = get_test_queue(false);
 		if let Err(e) = queue.import(Unverified::new(get_good_dummy_block())) {
 			panic!("error importing block that is valid by definition({:?})", e);
 		}
@@ -736,7 +752,7 @@ mod tests {
 
 	#[test]
 	fn returns_ok_for_drained_duplicates() {
-		let queue = get_test_queue();
+		let queue = get_test_queue(false);
 		let block = get_good_dummy_block();
 		let hash = BlockView::new(&block).header().hash().clone();
 		if let Err(e) = queue.import(Unverified::new(block)) {
@@ -753,7 +769,7 @@ mod tests {
 
 	#[test]
 	fn returns_empty_once_finished() {
-		let queue = get_test_queue();
+		let queue = get_test_queue(false);
 		queue.import(Unverified::new(get_good_dummy_block()))
 			.expect("error importing block that is valid by definition");
 		queue.flush();
@@ -781,30 +797,23 @@ mod tests {
 	fn scaling_limits() {
 		use super::MAX_VERIFIERS;
 
-		let queue = get_test_queue();
+		let queue = get_test_queue(true);
 		queue.scale_verifiers(MAX_VERIFIERS + 1);
 
-		assert!(queue.verifiers.lock().1 < MAX_VERIFIERS + 1);
+		assert!(queue.num_verifiers() < MAX_VERIFIERS + 1);
 
 		queue.scale_verifiers(0);
 
-		assert!(queue.verifiers.lock().1 == 1);
+		assert!(queue.num_verifiers() == 1);
 	}
 
 	#[test]
 	fn readjust_verifiers() {
-		let queue = get_test_queue();
+		let queue = get_test_queue(true);
 
 		// put all the verifiers to sleep to ensure 
 		// the test isn't timing sensitive.
-		let num_verifiers = {
+		*queue.state.0.lock() = State::Work(0);
-			let verifiers = queue.verifiers.lock();
-			for i in 0..verifiers.1 {
-				verifiers.0[i].sleep();
-			}
-
-			verifiers.1
-		};
 
 		for block in get_good_dummy_block_seq(5000) {
 			queue.import(Unverified::new(block)).expect("Block good by definition; qed");
@@ -812,20 +821,12 @@ mod tests {
 
 		// almost all unverified == bump verifier count.
 		queue.collect_garbage();
-		assert_eq!(queue.verifiers.lock().1, num_verifiers + 1);
+		assert_eq!(queue.num_verifiers(), 1);
-
-		// wake them up again and verify everything.
-		{
-			let verifiers = queue.verifiers.lock();
-			for i in 0..verifiers.1 {
-				verifiers.0[i].wake_up();
-			}
-		}
 
 		queue.flush();
 
 		// nothing to verify == use minimum number of verifiers.
 		queue.collect_garbage();
-		assert_eq!(queue.verifiers.lock().1, 1);
+		assert_eq!(queue.num_verifiers(), 1);
 	}
 }

evmjit/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "evmjit"
-version = "1.4.0"
+version = "1.5.0"
 authors = ["debris <marek.kotewicz@gmail.com>"]
 
 [lib]

ipc/codegen/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ethcore-ipc-codegen"
-version = "1.4.0"
+version = "1.5.0"
 authors = ["Nikolay Volf"]
 license = "GPL-3.0"
 description = "Macros to auto-generate implementations for ipc call"

ipc/nano/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ethcore-ipc-nano"
-version = "1.4.0"
+version = "1.5.0"
 authors = ["Nikolay Volf <nikolay@ethcore.io>"]
 license = "GPL-3.0"
 

ipc/rpc/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ethcore-ipc"
-version = "1.4.0"
+version = "1.5.0"
 authors = ["Nikolay Volf <nikvolf@gmail.com>"]
 license = "GPL-3.0"
 

js/.babelrc

@@ -7,6 +7,7 @@
     "transform-runtime",
     "transform-decorators-legacy",
     "transform-class-properties",
+    "transform-object-rest-spread",
     "lodash"
   ],
   "retainLines": true,

js/.npmrc

@@ -1 +1 @@
-save-prefix='~'
+save-prefix=''

js/assets/images/certifications/unknown.svg

@@ -0,0 +1,4 @@
+<svg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg">
+	<circle fill="#4A90E2" cx="50" cy="50" r="50"/>
+	<path d="M20 45 L10 55 L35 85 L90 35 L80 25 L36 65 z" fill="#FFF"/>
+</svg>

js/package.json

@@ -1,6 +1,6 @@
 {
   "name": "parity.js",
-  "version": "0.2.78",
+  "version": "0.2.102",
   "main": "release/index.js",
   "jsnext:main": "src/index.js",
   "author": "Parity Team <admin@parity.io>",
@@ -47,132 +47,128 @@
     "prepush": "npm run lint:cached"
   },
   "devDependencies": {
-    "babel-cli": "~6.18.0",
+    "babel-cli": "6.18.0",
-    "babel-core": "~6.18.2",
+    "babel-core": "6.20.0",
-    "babel-eslint": "~7.1.0",
+    "babel-eslint": "7.1.1",
-    "babel-loader": "~6.2.3",
+    "babel-loader": "6.2.8",
-    "babel-plugin-lodash": "~3.2.2",
+    "babel-plugin-lodash": "3.2.10",
-    "babel-plugin-transform-class-properties": "~6.19.0",
+    "babel-plugin-transform-class-properties": "6.18.0",
-    "babel-plugin-transform-decorators-legacy": "~1.3.4",
+    "babel-plugin-transform-decorators-legacy": "1.3.4",
-    "babel-plugin-transform-react-remove-prop-types": "~0.2.9",
+    "babel-plugin-transform-object-rest-spread": "6.20.2",
-    "babel-plugin-transform-runtime": "~6.15.0",
+    "babel-plugin-transform-react-remove-prop-types": "0.2.11",
-    "babel-polyfill": "~6.16.0",
+    "babel-plugin-transform-runtime": "6.15.0",
-    "babel-preset-es2015": "~6.18.0",
+    "babel-polyfill": "6.20.0",
-    "babel-preset-es2015-rollup": "~1.2.0",
+    "babel-preset-es2015": "6.18.0",
-    "babel-preset-es2016": "~6.16.0",
+    "babel-preset-es2016": "6.16.0",
-    "babel-preset-es2017": "~6.16.0",
+    "babel-preset-es2017": "6.16.0",
-    "babel-preset-react": "~6.16.0",
+    "babel-preset-react": "6.16.0",
-    "babel-preset-stage-0": "~6.16.0",
+    "babel-preset-stage-0": "6.16.0",
     "babel-register": "6.18.0",
-    "babel-runtime": "~6.18.0",
+    "babel-runtime": "6.20.0",
-    "chai": "~3.5.0",
+    "chai": "3.5.0",
-    "chai-enzyme": "0.4.2",
+    "chai-enzyme": "0.6.1",
-    "cheerio": "0.20.0",
+    "circular-dependency-plugin": "2.0.0",
-    "copy-webpack-plugin": "~4.0.0",
+    "copy-webpack-plugin": "4.0.1",
-    "core-js": "~2.4.1",
+    "core-js": "2.4.1",
-    "coveralls": "~2.11.11",
+    "coveralls": "2.11.15",
-    "css-loader": "~0.26.0",
+    "css-loader": "0.26.1",
-    "enzyme": "2.3.0",
+    "ejs-loader": "0.3.0",
-    "eslint": "~3.10.2",
+    "enzyme": "2.6.0",
-    "eslint-config-semistandard": "~7.0.0",
+    "eslint": "3.11.1",
-    "eslint-config-standard": "~6.2.1",
+    "eslint-config-semistandard": "7.0.0",
-    "eslint-config-standard-react": "~4.2.0",
+    "eslint-config-standard": "6.2.1",
-    "eslint-plugin-promise": "~3.4.0",
+    "eslint-config-standard-react": "4.2.0",
-    "eslint-plugin-react": "~6.7.1",
+    "eslint-plugin-promise": "3.4.0",
-    "eslint-plugin-standard": "~2.0.0",
+    "eslint-plugin-react": "6.7.1",
-    "express": "~4.14.0",
+    "eslint-plugin-standard": "2.0.1",
+    "express": "4.14.0",
     "extract-loader": "0.1.0",
-    "extract-text-webpack-plugin": "~2.0.0-beta.4",
+    "extract-text-webpack-plugin": "2.0.0-beta.4",
-    "file-loader": "~0.9.0",
+    "file-loader": "0.9.0",
-    "fs-extra": "~0.30.0",
+    "happypack": "3.0.0",
-    "happypack": "~3.0.0",
+    "html-loader": "0.4.4",
-    "history": "~2.0.0",
+    "html-webpack-plugin": "2.24.1",
-    "html-loader": "~0.4.4",
+    "http-proxy-middleware": "0.17.2",
-    "html-webpack-plugin": "~2.24.1",
+    "husky": "0.11.9",
-    "http-proxy-middleware": "~0.17.2",
+    "ignore-styles": "5.0.1",
-    "husky": "~0.11.9",
+    "image-webpack-loader": "3.0.0",
-    "ignore-styles": "2.0.0",
+    "istanbul": "1.0.0-alpha.2",
-    "image-webpack-loader": "~3.0.0",
+    "jsdom": "9.8.3",
-    "istanbul": "~1.0.0-alpha.2",
+    "json-loader": "0.5.4",
-    "jsdom": "9.2.1",
+    "mocha": "3.2.0",
-    "json-loader": "~0.5.4",
-    "mocha": "~3.0.0-1",
     "mock-local-storage": "1.0.2",
-    "mock-socket": "~3.0.1",
+    "mock-socket": "6.0.3",
-    "nock": "~8.0.0",
+    "nock": "9.0.2",
     "postcss-import": "8.1.0",
-    "postcss-loader": "~1.1.1",
+    "postcss-loader": "1.1.1",
-    "postcss-nested": "~1.0.0",
+    "postcss-nested": "1.0.0",
-    "postcss-simple-vars": "~3.0.0",
+    "postcss-simple-vars": "3.0.0",
-    "progress": "~1.1.8",
+    "progress": "1.1.8",
-    "raw-loader": "~0.5.1",
+    "raw-loader": "0.5.1",
-    "react-addons-perf": "~15.3.2",
+    "react-addons-perf": "15.4.1",
-    "react-addons-test-utils": "~15.3.2",
+    "react-addons-test-utils": "15.4.1",
-    "react-dom": "~15.3.2",
+    "react-hot-loader": "3.0.0-beta.6",
-    "react-hot-loader": "~3.0.0-beta.6",
+    "rucksack-css": "0.9.1",
-    "rucksack-css": "~0.8.6",
+    "sinon": "1.17.6",
-    "sinon": "~1.17.4",
+    "sinon-as-promised": "4.0.2",
-    "sinon-as-promised": "~4.0.2",
+    "sinon-chai": "2.8.0",
-    "sinon-chai": "~2.8.0",
+    "style-loader": "0.13.1",
-    "style-loader": "~0.13.0",
+    "url-loader": "0.5.7",
-    "url-loader": "~0.5.7",
+    "webpack": "2.1.0-beta.27",
-    "webpack": "~2.1.0-beta.27",
+    "webpack-dev-middleware": "1.8.4",
-    "webpack-dev-middleware": "~1.8.4",
     "webpack-error-notification": "0.1.6",
-    "webpack-hot-middleware": "~2.13.2",
+    "webpack-hot-middleware": "2.13.2",
-    "websocket": "~1.0.23"
+    "websocket": "1.0.23"
   },
   "dependencies": {
-    "bignumber.js": "~2.3.0",
+    "bignumber.js": "3.0.1",
     "blockies": "0.0.2",
-    "brace": "~0.9.0",
+    "brace": "0.9.0",
-    "bytes": "~2.4.0",
+    "bytes": "2.4.0",
-    "chart.js": "~2.3.0",
+    "es6-error": "4.0.0",
-    "es6-error": "~4.0.0",
+    "es6-promise": "4.0.5",
-    "es6-promise": "~3.2.1",
+    "ethereumjs-tx": "1.1.4",
-    "ethereumjs-tx": "~1.1.2",
+    "eventemitter3": "2.0.2",
-    "eventemitter3": "~2.0.2",
+    "file-saver": "1.3.3",
-    "file-saver": "~1.3.3",
+    "format-json": "1.0.3",
-    "format-json": "~1.0.3",
+    "format-number": "2.0.1",
-    "format-number": "~2.0.1",
+    "geopattern": "1.2.3",
-    "geopattern": "~1.2.3",
+    "isomorphic-fetch": "2.2.1",
-    "isomorphic-fetch": "~2.2.1",
+    "js-sha3": "0.5.5",
-    "js-sha3": "~0.5.2",
+    "lodash": "4.17.2",
-    "lodash": "~4.11.1",
+    "marked": "0.3.6",
-    "marked": "~0.3.6",
+    "material-ui": "0.16.4",
-    "material-ui": "0.16.1",
+    "material-ui-chip-input": "0.11.1",
-    "material-ui-chip-input": "~0.8.0",
+    "mobx": "2.6.4",
-    "mobx": "~2.6.1",
+    "mobx-react": "4.0.3",
-    "mobx-react": "~3.5.8",
+    "mobx-react-devtools": "4.2.10",
-    "mobx-react-devtools": "~4.2.9",
+    "moment": "2.17.0",
-    "moment": "~2.14.1",
+    "phoneformat.js": "1.0.3",
-    "phoneformat.js": "~1.0.3",
+    "qs": "6.3.0",
-    "qs": "~6.3.0",
+    "react": "15.4.1",
-    "react": "~15.3.2",
+    "react-ace": "4.1.0",
-    "react-ace": "~4.0.0",
+    "react-addons-css-transition-group": "15.4.1",
-    "react-addons-css-transition-group": "~15.3.2",
+    "react-copy-to-clipboard": "4.2.3",
-    "react-chartjs-2": "~1.5.0",
+    "react-dom": "15.4.1",
-    "react-copy-to-clipboard": "~4.2.3",
+    "react-dropzone": "3.7.3",
-    "react-dom": "~15.3.2",
+    "react-redux": "4.4.6",
-    "react-dropzone": "~3.7.3",
+    "react-router": "3.0.0",
-    "react-redux": "~4.4.5",
+    "react-router-redux": "4.0.7",
-    "react-router": "~2.6.1",
+    "react-tap-event-plugin": "2.0.1",
-    "react-router-redux": "~4.0.5",
+    "react-tooltip": "3.2.2",
-    "react-tap-event-plugin": "~1.0.0",
+    "recharts": "0.15.2",
-    "react-tooltip": "~2.0.3",
+    "redux": "3.6.0",
-    "recharts": "~0.15.2",
+    "redux-actions": "1.1.0",
-    "redux": "~3.5.2",
+    "redux-thunk": "2.1.0",
-    "redux-actions": "~0.10.1",
+    "rlp": "2.0.0",
-    "redux-thunk": "~2.1.0",
+    "scryptsy": "2.0.0",
-    "rlp": "~2.0.0",
-    "scryptsy": "~2.0.0",
     "solc": "ngotchac/solc-js",
-    "store": "~1.3.20",
+    "store": "1.3.20",
-    "utf8": "~2.1.1",
+    "utf8": "2.1.2",
-    "valid-url": "~1.0.9",
+    "valid-url": "1.0.9",
-    "validator": "~5.7.0",
+    "validator": "6.2.0",
-    "web3": "~0.17.0-beta",
+    "web3": "0.17.0-beta",
-    "whatwg-fetch": "~1.0.0",
+    "whatwg-fetch": "2.0.1",
-    "worker-loader": "~0.7.1"
+    "worker-loader": "0.7.1"
   }
 }

js/scripts/release.sh

@@ -34,11 +34,18 @@ git fetch origin 2>$GITLOG
 git checkout -b $BRANCH
 
 echo "*** Committing compiled files for $UTCDATE"
+mv build ../build.new
 git add .
-git commit -m "$UTCDATE"
+git commit -m "$UTCDATE [update]"
+git merge origin/$BRANCH -X ours --commit -m "$UTCDATE [merge]"
+git rm -r build
+rm -rf build
+git commit -m "$UTCDATE [cleanup]"
+mv ../build.new build
+git add .
+git commit -m "$UTCDATE [release]"
 
 echo "*** Merging remote"
-git merge origin/$BRANCH -X ours --commit -m "$UTCDATE [release]"
 git push origin HEAD:refs/heads/$BRANCH 2>$GITLOG
 PRECOMPILED_HASH=`git rev-parse HEAD`
 

js/scripts/test.js

@@ -0,0 +1 @@
+// test script 6

js/src/abi/util/slice.js

@@ -27,9 +27,5 @@ export function sliceData (_data) {
     data = padAddress('');
   }
 
-  if (data.length % 64) {
-    throw new Error(`Invalid data length (not mod 64) passed to sliceData, ${data}, % 64 == ${data.length % 64}`);
-  }
-
   return data.match(/.{1,64}/g);
 }

js/src/abi/util/slice.spec.js

@@ -21,10 +21,6 @@ describe('abi/util/slice', () => {
     const slice1 = '131a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b';
     const slice2 = '2124768576358735263578356373526387638357635873563586353756358763';
 
-    it('throws an error on mod 64 != 0', () => {
-      expect(() => sliceData('123')).to.throw(/sliceData/);
-    });
-
     it('returns an empty array when length === 0', () => {
       expect(sliceData('')).to.deep.equal([]);
     });

js/src/api/contract/contract.js

@@ -189,15 +189,21 @@ export default class Contract {
     });
   }
 
-  _encodeOptions (func, options, values) {
+  getCallData = (func, options, values) => {
+    let data = options.data;
+
     const tokens = func ? this._abi.encodeTokens(func.inputParamTypes(), values) : null;
     const call = tokens ? func.encodeCall(tokens) : null;
 
-    if (options.data && options.data.substr(0, 2) === '0x') {
+    if (data && data.substr(0, 2) === '0x') {
-      options.data = options.data.substr(2);
+      data = data.substr(2);
     }
-    options.data = `0x${options.data || ''}${call || ''}`;
 
+    return `0x${data || ''}${call || ''}`;
+  }
+
+  _encodeOptions (func, options, values) {
+    options.data = this.getCallData(func, options, values);
     return options;
   }
 
@@ -209,8 +215,10 @@ export default class Contract {
 
   _bindFunction = (func) => {
     func.call = (options, values = []) => {
+      const callParams = this._encodeOptions(func, this._addOptionsTo(options), values);
+
       return this._api.eth
-        .call(this._encodeOptions(func, this._addOptionsTo(options), values))
+        .call(callParams)
         .then((encoded) => func.decodeOutput(encoded))
         .then((tokens) => tokens.map((token) => token.value))
         .then((returns) => returns.length === 1 ? returns[0] : returns);
@@ -240,9 +248,28 @@ export default class Contract {
       return this.unsubscribe(subscriptionId);
     };
 
+    event.getAllLogs = (options = {}) => {
+      return this.getAllLogs(event);
+    };
+
     return event;
   }
 
+  getAllLogs (event, _options) {
+    // Options as first parameter
+    if (!_options && event && event.topics) {
+      return this.getAllLogs(null, event);
+    }
+
+    const options = this._getFilterOptions(event, _options);
+    options.fromBlock = 0;
+    options.toBlock = 'latest';
+
+    return this._api.eth
+      .getLogs(options)
+      .then((logs) => this.parseEventLogs(logs));
+  }
+
   _findEvent (eventName = null) {
     const event = eventName
       ? this._events.find((evt) => evt.name === eventName)
@@ -256,7 +283,7 @@ export default class Contract {
     return event;
   }
 
-  _createEthFilter (event = null, _options) {
+  _getFilterOptions (event = null, _options = {}) {
     const optionTopics = _options.topics || [];
     const signature = event && event.signature || null;
 
@@ -271,6 +298,11 @@ export default class Contract {
       topics
     });
 
+    return options;
+  }
+
+  _createEthFilter (event = null, _options) {
+    const options = this._getFilterOptions(event, _options);
     return this._api.eth.newFilter(options);
   }
 

js/src/api/format/input.js

@@ -112,11 +112,15 @@ export function inNumber10 (number) {
 }
 
 export function inNumber16 (number) {
-  if (isInstanceOf(number, BigNumber)) {
+  const bn = isInstanceOf(number, BigNumber)
-    return inHex(number.toString(16));
+    ? number
+    : (new BigNumber(number || 0));
+
+  if (!bn.isInteger()) {
+    throw new Error(`[format/input::inNumber16] the given number is not an integer: ${bn.toFormat()}`);
   }
 
-  return inHex((new BigNumber(number || 0)).toString(16));
+  return inHex(bn.toString(16));
 }
 
 export function inOptions (options) {
@@ -130,6 +134,9 @@ export function inOptions (options) {
 
         case 'gas':
         case 'gasPrice':
+          options[key] = inNumber16((new BigNumber(options[key])).round());
+          break;
+
         case 'value':
         case 'nonce':
           options[key] = inNumber16(options[key]);

js/src/api/format/output.js

@@ -144,7 +144,8 @@ export function outSignerRequest (request) {
           break;
 
         case 'payload':
-          request[key].transaction = outTransaction(request[key].transaction);
+          request[key].signTransaction = outTransaction(request[key].signTransaction);
+          request[key].sendTransaction = outTransaction(request[key].sendTransaction);
           break;
       }
     });

js/src/api/rpc/eth/eth.js

@@ -146,7 +146,8 @@ export default class Eth {
 
   getLogs (options) {
     return this._transport
-      .execute('eth_getLogs', inFilter(options));
+      .execute('eth_getLogs', inFilter(options))
+      .then((logs) => logs.map(outLog));
   }
 
   getLogsEx (options) {

js/src/api/rpc/parity/parity.js

@@ -128,6 +128,11 @@ export default class Parity {
       .execute('parity_killAccount', inAddress(account), password);
   }
 
+  removeAddress (address) {
+    return this._transport
+      .execute('parity_removeAddress', inAddress(address));
+  }
+
   listGethAccounts () {
     return this._transport
       .execute('parity_listGethAccounts')

js/src/api/subscriptions/personal.js

@@ -68,6 +68,7 @@ export default class Personal {
           this._accountsInfo();
           return;
 
+        case 'parity_removeAddress':
         case 'parity_setAccountName':
         case 'parity_setAccountMeta':
           this._accountsInfo();

js/src/api/util/format.js

@@ -32,6 +32,10 @@ export function hex2Ascii (_hex) {
   return str;
 }
 
+export function bytesToAscii (bytes) {
+  return bytes.map((b) => String.fromCharCode(b % 512)).join('');
+}
+
 export function asciiToHex (string) {
   return '0x' + string.split('').map((s) => s.charCodeAt(0).toString(16)).join('');
 }

js/src/contracts/abi/badgereg.json

@@ -0,0 +1 @@
+[{"constant":false,"inputs":[{"name":"_new","type":"address"}],"name":"setOwner","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_addr","type":"address"},{"name":"_name","type":"bytes32"}],"name":"register","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_name","type":"bytes32"}],"name":"fromName","outputs":[{"name":"id","type":"uint256"},{"name":"addr","type":"address"},{"name":"owner","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"badgeCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_fee","type":"uint256"}],"name":"setFee","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_id","type":"uint256"},{"name":"_key","type":"bytes32"}],"name":"meta","outputs":[{"name":"","type":"bytes32"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"drain","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_id","type":"uint256"}],"name":"unregister","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_addr","type":"address"}],"name":"fromAddress","outputs":[{"name":"id","type":"uint256"},{"name":"name","type":"bytes32"},{"name":"owner","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_id","type":"uint256"}],"name":"badge","outputs":[{"name":"addr","type":"address"},{"name":"name","type":"bytes32"},{"name":"owner","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_id","type":"uint256"},{"name":"_key","type":"bytes32"},{"name":"_value","type":"bytes32"}],"name":"setMeta","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_addr","type":"address"},{"name":"_name","type":"bytes32"},{"name":"_owner","type":"address"}],"name":"registerAs","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"fee","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"name","type":"bytes32"},{"indexed":true,"name":"id","type":"uint256"},{"indexed":false,"name":"addr","type":"address"}],"name":"Registered","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"name","type":"bytes32"},{"indexed":true,"name":"id","type":"uint256"}],"name":"Unregistered","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"id","type":"uint256"},{"indexed":true,"name":"key","type":"bytes32"},{"indexed":false,"name":"value","type":"bytes32"}],"name":"MetaChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"old","type":"address"},{"indexed":true,"name":"current","type":"address"}],"name":"NewOwner","type":"event"}]

js/src/contracts/abi/certifier.json

@@ -0,0 +1 @@
+[{"constant":true,"inputs":[{"name":"_who","type":"address"},{"name":"_field","type":"string"}],"name":"getAddress","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_who","type":"address"},{"name":"_field","type":"string"}],"name":"getUint","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_who","type":"address"}],"name":"certified","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_who","type":"address"},{"name":"_field","type":"string"}],"name":"get","outputs":[{"name":"","type":"bytes32"}],"payable":false,"type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"who","type":"address"}],"name":"Confirmed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"who","type":"address"}],"name":"Revoked","type":"event"}]

js/src/contracts/abi/index.js

@@ -14,6 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
+import badgereg from './badgereg.json';
 import basiccoin from './basiccoin.json';
 import basiccoinmanager from './basiccoinmanager.json';
 import dappreg from './dappreg.json';
@@ -28,6 +29,7 @@ import tokenreg from './tokenreg.json';
 import wallet from './wallet.json';
 
 export {
+  badgereg,
   basiccoin,
   basiccoinmanager,
   dappreg,

js/src/contracts/badgereg.js

@@ -0,0 +1,66 @@
+// Copyright 2015, 2016 Ethcore (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+import { bytesToHex, hex2Ascii } from '~/api/util/format';
+
+import ABI from './abi/certifier.json';
+
+const ZERO = '0x0000000000000000000000000000000000000000000000000000000000000000';
+
+export default class BadgeReg {
+  constructor (api, registry) {
+    this._api = api;
+    this._registry = registry;
+
+    registry.getContract('badgereg');
+    this.certifiers = {}; // by name
+    this.contracts = {}; // by name
+  }
+
+  fetchCertifier (name) {
+    if (this.certifiers[name]) {
+      return Promise.resolve(this.certifiers[name]);
+    }
+    return this._registry.getContract('badgereg')
+      .then((badgeReg) => {
+        return badgeReg.instance.fromName.call({}, [name])
+        .then(([ id, address ]) => {
+          return Promise.all([
+            badgeReg.instance.meta.call({}, [id, 'TITLE']),
+            badgeReg.instance.meta.call({}, [id, 'IMG'])
+          ])
+            .then(([ title, img ]) => {
+              title = bytesToHex(title);
+              title = title === ZERO ? null : hex2Ascii(title);
+              if (bytesToHex(img) === ZERO) img = null;
+
+              const data = { address, name, title, icon: img };
+              this.certifiers[name] = data;
+              return data;
+            });
+        });
+      });
+  }
+
+  checkIfCertified (certifier, address) {
+    if (!this.contracts[certifier]) {
+      this.contracts[certifier] = this._api.newContract(ABI, certifier);
+    }
+    const contract = this.contracts[certifier];
+
+    return contract.instance.certified.call({}, [address]);
+  }
+}

js/src/contracts/code/index.js

@@ -14,5 +14,8 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-export RequestFinished from './RequestFinished';
+import wallet from './wallet';
-export RequestPending from './RequestPending';
+
+export {
+  wallet
+};

js/src/contracts/contracts.js

@@ -20,6 +20,7 @@ import SignatureReg from './signaturereg';
 import TokenReg from './tokenreg';
 import GithubHint from './githubhint';
 import * as smsVerification from './sms-verification';
+import BadgeReg from './badgereg';
 
 let instance = null;
 
@@ -33,6 +34,7 @@ export default class Contracts {
     this._signaturereg = new SignatureReg(api, this._registry);
     this._tokenreg = new TokenReg(api, this._registry);
     this._githubhint = new GithubHint(api, this._registry);
+    this.badgeReg = new BadgeReg(api, this._registry);
   }
 
   get registry () {

js/src/contracts/snippets/wallet.sol

@@ -0,0 +1,388 @@
+//sol Wallet
+// Multi-sig, daily-limited account proxy/wallet.
+// @authors:
+// Gav Wood <g@ethdev.com>
+// inheritable "property" contract that enables methods to be protected by requiring the acquiescence of either a
+// single, or, crucially, each of a number of, designated owners.
+// usage:
+// use modifiers onlyowner (just own owned) or onlymanyowners(hash), whereby the same hash must be provided by
+// some number (specified in constructor) of the set of owners (specified in the constructor, modifiable) before the
+// interior is executed.
+pragma solidity ^0.4.6;
+
+contract multiowned {
+
+    // TYPES
+
+    // struct for the status of a pending operation.
+    struct PendingState {
+        uint yetNeeded;
+        uint ownersDone;
+        uint index;
+    }
+
+    // EVENTS
+
+    // this contract only has six types of events: it can accept a confirmation, in which case
+    // we record owner and operation (hash) alongside it.
+    event Confirmation(address owner, bytes32 operation);
+    event Revoke(address owner, bytes32 operation);
+    // some others are in the case of an owner changing.
+    event OwnerChanged(address oldOwner, address newOwner);
+    event OwnerAdded(address newOwner);
+    event OwnerRemoved(address oldOwner);
+    // the last one is emitted if the required signatures change
+    event RequirementChanged(uint newRequirement);
+
+    // MODIFIERS
+
+    // simple single-sig function modifier.
+    modifier onlyowner {
+        if (isOwner(msg.sender))
+            _;
+    }
+    // multi-sig function modifier: the operation must have an intrinsic hash in order
+    // that later attempts can be realised as the same underlying operation and
+    // thus count as confirmations.
+    modifier onlymanyowners(bytes32 _operation) {
+        if (confirmAndCheck(_operation))
+            _;
+    }
+
+    // METHODS
+
+    // constructor is given number of sigs required to do protected "onlymanyowners" transactions
+    // as well as the selection of addresses capable of confirming them.
+    function multiowned(address[] _owners, uint _required) {
+        m_numOwners = _owners.length + 1;
+        m_owners[1] = uint(msg.sender);
+        m_ownerIndex[uint(msg.sender)] = 1;
+        for (uint i = 0; i < _owners.length; ++i)
+        {
+            m_owners[2 + i] = uint(_owners[i]);
+            m_ownerIndex[uint(_owners[i])] = 2 + i;
+        }
+        m_required = _required;
+    }
+
+    // Revokes a prior confirmation of the given operation
+    function revoke(bytes32 _operation) external {
+        uint ownerIndex = m_ownerIndex[uint(msg.sender)];
+        // make sure they're an owner
+        if (ownerIndex == 0) return;
+        uint ownerIndexBit = 2**ownerIndex;
+        var pending = m_pending[_operation];
+        if (pending.ownersDone & ownerIndexBit > 0) {
+            pending.yetNeeded++;
+            pending.ownersDone -= ownerIndexBit;
+            Revoke(msg.sender, _operation);
+        }
+    }
+
+    // Replaces an owner `_from` with another `_to`.
+    function changeOwner(address _from, address _to) onlymanyowners(sha3(msg.data)) external {
+        if (isOwner(_to)) return;
+        uint ownerIndex = m_ownerIndex[uint(_from)];
+        if (ownerIndex == 0) return;
+
+        clearPending();
+        m_owners[ownerIndex] = uint(_to);
+        m_ownerIndex[uint(_from)] = 0;
+        m_ownerIndex[uint(_to)] = ownerIndex;
+        OwnerChanged(_from, _to);
+    }
+
+    function addOwner(address _owner) onlymanyowners(sha3(msg.data)) external {
+        if (isOwner(_owner)) return;
+
+        clearPending();
+        if (m_numOwners >= c_maxOwners)
+            reorganizeOwners();
+        if (m_numOwners >= c_maxOwners)
+            return;
+        m_numOwners++;
+        m_owners[m_numOwners] = uint(_owner);
+        m_ownerIndex[uint(_owner)] = m_numOwners;
+        OwnerAdded(_owner);
+    }
+
+    function removeOwner(address _owner) onlymanyowners(sha3(msg.data)) external {
+        uint ownerIndex = m_ownerIndex[uint(_owner)];
+        if (ownerIndex == 0) return;
+        if (m_required > m_numOwners - 1) return;
+
+        m_owners[ownerIndex] = 0;
+        m_ownerIndex[uint(_owner)] = 0;
+        clearPending();
+        reorganizeOwners(); //make sure m_numOwner is equal to the number of owners and always points to the optimal free slot
+        OwnerRemoved(_owner);
+    }
+
+    function changeRequirement(uint _newRequired) onlymanyowners(sha3(msg.data)) external {
+        if (_newRequired > m_numOwners) return;
+        m_required = _newRequired;
+        clearPending();
+        RequirementChanged(_newRequired);
+    }
+
+    // Gets an owner by 0-indexed position (using numOwners as the count)
+    function getOwner(uint ownerIndex) external constant returns (address) {
+        return address(m_owners[ownerIndex + 1]);
+    }
+
+    function isOwner(address _addr) returns (bool) {
+        return m_ownerIndex[uint(_addr)] > 0;
+    }
+
+    function hasConfirmed(bytes32 _operation, address _owner) constant returns (bool) {
+        var pending = m_pending[_operation];
+        uint ownerIndex = m_ownerIndex[uint(_owner)];
+
+        // make sure they're an owner
+        if (ownerIndex == 0) return false;
+
+        // determine the bit to set for this owner.
+        uint ownerIndexBit = 2**ownerIndex;
+        return !(pending.ownersDone & ownerIndexBit == 0);
+    }
+
+    // INTERNAL METHODS
+
+    function confirmAndCheck(bytes32 _operation) internal returns (bool) {
+        // determine what index the present sender is:
+        uint ownerIndex = m_ownerIndex[uint(msg.sender)];
+        // make sure they're an owner
+        if (ownerIndex == 0) return;
+
+        var pending = m_pending[_operation];
+        // if we're not yet working on this operation, switch over and reset the confirmation status.
+        if (pending.yetNeeded == 0) {
+            // reset count of confirmations needed.
+            pending.yetNeeded = m_required;
+            // reset which owners have confirmed (none) - set our bitmap to 0.
+            pending.ownersDone = 0;
+            pending.index = m_pendingIndex.length++;
+            m_pendingIndex[pending.index] = _operation;
+        }
+        // determine the bit to set for this owner.
+        uint ownerIndexBit = 2**ownerIndex;
+        // make sure we (the message sender) haven't confirmed this operation previously.
+        if (pending.ownersDone & ownerIndexBit == 0) {
+            Confirmation(msg.sender, _operation);
+            // ok - check if count is enough to go ahead.
+            if (pending.yetNeeded <= 1) {
+                // enough confirmations: reset and run interior.
+                delete m_pendingIndex[m_pending[_operation].index];
+                delete m_pending[_operation];
+                return true;
+            }
+            else
+            {
+                // not enough: record that this owner in particular confirmed.
+                pending.yetNeeded--;
+                pending.ownersDone |= ownerIndexBit;
+            }
+        }
+    }
+
+    function reorganizeOwners() private {
+        uint free = 1;
+        while (free < m_numOwners)
+        {
+            while (free < m_numOwners && m_owners[free] != 0) free++;
+            while (m_numOwners > 1 && m_owners[m_numOwners] == 0) m_numOwners--;
+            if (free < m_numOwners && m_owners[m_numOwners] != 0 && m_owners[free] == 0)
+            {
+                m_owners[free] = m_owners[m_numOwners];
+                m_ownerIndex[m_owners[free]] = free;
+                m_owners[m_numOwners] = 0;
+            }
+        }
+    }
+
+    function clearPending() internal {
+        uint length = m_pendingIndex.length;
+        for (uint i = 0; i < length; ++i)
+            if (m_pendingIndex[i] != 0)
+                delete m_pending[m_pendingIndex[i]];
+        delete m_pendingIndex;
+    }
+
+    // FIELDS
+
+    // the number of owners that must confirm the same operation before it is run.
+    uint public m_required;
+    // pointer used to find a free slot in m_owners
+    uint public m_numOwners;
+
+    // list of owners
+    uint[256] m_owners;
+    uint constant c_maxOwners = 250;
+    // index on the list of owners to allow reverse lookup
+    mapping(uint => uint) m_ownerIndex;
+    // the ongoing operations.
+    mapping(bytes32 => PendingState) m_pending;
+    bytes32[] m_pendingIndex;
+}
+
+// inheritable "property" contract that enables methods to be protected by placing a linear limit (specifiable)
+// on a particular resource per calendar day. is multiowned to allow the limit to be altered. resource that method
+// uses is specified in the modifier.
+contract daylimit is multiowned {
+
+    // MODIFIERS
+
+    // simple modifier for daily limit.
+    modifier limitedDaily(uint _value) {
+        if (underLimit(_value))
+            _;
+    }
+
+    // METHODS
+
+    // constructor - stores initial daily limit and records the present day's index.
+    function daylimit(uint _limit) {
+        m_dailyLimit = _limit;
+        m_lastDay = today();
+    }
+    // (re)sets the daily limit. needs many of the owners to confirm. doesn't alter the amount already spent today.
+    function setDailyLimit(uint _newLimit) onlymanyowners(sha3(msg.data)) external {
+        m_dailyLimit = _newLimit;
+    }
+    // resets the amount already spent today. needs many of the owners to confirm.
+    function resetSpentToday() onlymanyowners(sha3(msg.data)) external {
+        m_spentToday = 0;
+    }
+
+    // INTERNAL METHODS
+
+    // checks to see if there is at least `_value` left from the daily limit today. if there is, subtracts it and
+    // returns true. otherwise just returns false.
+    function underLimit(uint _value) internal onlyowner returns (bool) {
+        // reset the spend limit if we're on a different day to last time.
+        if (today() > m_lastDay) {
+            m_spentToday = 0;
+            m_lastDay = today();
+        }
+        // check to see if there's enough left - if so, subtract and return true.
+        // overflow protection                    // dailyLimit check
+        if (m_spentToday + _value >= m_spentToday && m_spentToday + _value <= m_dailyLimit) {
+            m_spentToday += _value;
+            return true;
+        }
+        return false;
+    }
+    // determines today's index.
+    function today() private constant returns (uint) { return now / 1 days; }
+
+    // FIELDS
+
+    uint public m_dailyLimit;
+    uint public m_spentToday;
+    uint public m_lastDay;
+}
+
+// interface contract for multisig proxy contracts; see below for docs.
+contract multisig {
+
+    // EVENTS
+
+    // logged events:
+    // Funds has arrived into the wallet (record how much).
+    event Deposit(address _from, uint value);
+    // Single transaction going out of the wallet (record who signed for it, how much, and to whom it's going).
+    event SingleTransact(address owner, uint value, address to, bytes data);
+    // Multi-sig transaction going out of the wallet (record who signed for it last, the operation hash, how much, and to whom it's going).
+    event MultiTransact(address owner, bytes32 operation, uint value, address to, bytes data);
+    // Confirmation still needed for a transaction.
+    event ConfirmationNeeded(bytes32 operation, address initiator, uint value, address to, bytes data);
+
+    // FUNCTIONS
+
+    // TODO: document
+    function changeOwner(address _from, address _to) external;
+    function execute(address _to, uint _value, bytes _data) external returns (bytes32);
+    function confirm(bytes32 _h) returns (bool);
+}
+
+// usage:
+// bytes32 h = Wallet(w).from(oneOwner).execute(to, value, data);
+// Wallet(w).from(anotherOwner).confirm(h);
+contract Wallet is multisig, multiowned, daylimit {
+
+    // TYPES
+
+    // Transaction structure to remember details of transaction lest it need be saved for a later call.
+    struct Transaction {
+        address to;
+        uint value;
+        bytes data;
+    }
+
+    // METHODS
+
+    // constructor - just pass on the owner array to the multiowned and
+    // the limit to daylimit
+    function Wallet(address[] _owners, uint _required, uint _daylimit)
+            multiowned(_owners, _required) daylimit(_daylimit) {
+    }
+
+    // kills the contract sending everything to `_to`.
+    function kill(address _to) onlymanyowners(sha3(msg.data)) external {
+        suicide(_to);
+    }
+
+    // gets called when no other function matches
+    function() payable {
+        // just being sent some cash?
+        if (msg.value > 0)
+            Deposit(msg.sender, msg.value);
+    }
+
+    // Outside-visible transact entry point. Executes transaction immediately if below daily spend limit.
+    // If not, goes into multisig process. We provide a hash on return to allow the sender to provide
+    // shortcuts for the other confirmations (allowing them to avoid replicating the _to, _value
+    // and _data arguments). They still get the option of using them if they want, anyways.
+    function execute(address _to, uint _value, bytes _data) external onlyowner returns (bytes32 _r) {
+        // first, take the opportunity to check that we're under the daily limit.
+        if (underLimit(_value)) {
+            SingleTransact(msg.sender, _value, _to, _data);
+            // yes - just execute the call.
+            _to.call.value(_value)(_data);
+            return 0;
+        }
+        // determine our operation hash.
+        _r = sha3(msg.data, block.number);
+        if (!confirm(_r) && m_txs[_r].to == 0) {
+            m_txs[_r].to = _to;
+            m_txs[_r].value = _value;
+            m_txs[_r].data = _data;
+            ConfirmationNeeded(_r, msg.sender, _value, _to, _data);
+        }
+    }
+
+    // confirm a transaction through just the hash. we use the previous transactions map, m_txs, in order
+    // to determine the body of the transaction from the hash provided.
+    function confirm(bytes32 _h) onlymanyowners(_h) returns (bool) {
+        if (m_txs[_h].to != 0) {
+            m_txs[_h].to.call.value(m_txs[_h].value)(m_txs[_h].data);
+            MultiTransact(msg.sender, _h, m_txs[_h].value, m_txs[_h].to, m_txs[_h].data);
+            delete m_txs[_h];
+            return true;
+        }
+    }
+
+    // INTERNAL METHODS
+
+    function clearPending() internal {
+        uint length = m_pendingIndex.length;
+        for (uint i = 0; i < length; ++i)
+            delete m_txs[m_pendingIndex[i]];
+        super.clearPending();
+    }
+
+    // FIELDS
+
+    // pending transactions we have at present.
+    mapping (bytes32 => Transaction) m_txs;
+}

js/src/dapps/basiccoin.js

@@ -16,8 +16,7 @@
 
 import ReactDOM from 'react-dom';
 import React from 'react';
-import { createHashHistory } from 'history';
+import { Redirect, Router, Route, hashHistory } from 'react-router';
-import { Redirect, Router, Route, useRouterHistory } from 'react-router';
 
 import injectTapEventPlugin from 'react-tap-event-plugin';
 injectTapEventPlugin();
@@ -27,14 +26,12 @@ import Application from './basiccoin/Application';
 import Overview from './basiccoin/Overview';
 import Transfer from './basiccoin/Transfer';
 
-const routerHistory = useRouterHistory(createHashHistory)({});
-
 import '../../assets/fonts/Roboto/font.css';
 import '../../assets/fonts/RobotoMono/font.css';
 import './style.css';
 
 ReactDOM.render(
-  <Router history={ routerHistory }>
+  <Router history={ hashHistory }>
     <Redirect from='/' to='/overview' />
     <Route path='/' component={ Application }>
       <Route path='deploy' component={ Deploy } />

js/src/dapps/basiccoin/Application/application.js

@@ -94,7 +94,6 @@ export default class Application extends Component {
           tokenregInstance,
           accounts: Object
             .keys(accountsInfo)
-            .filter((address) => !accountsInfo[address].meta.deleted)
             .sort((a, b) => {
               return (accountsInfo[b].uuid || '').localeCompare(accountsInfo[a].uuid || '');
             })

js/src/dapps/basiccoin/Transfer/Send/send.js

@@ -17,7 +17,7 @@
 import BigNumber from 'bignumber.js';
 import React, { Component, PropTypes } from 'react';
 
-import { eip20 } from '../../../../contracts/abi';
+import { eip20 } from '~/contracts/abi';
 
 import { api } from '../../parity';
 import { loadBalances } from '../../services';

js/src/dapps/basiccoin/services.js

@@ -16,7 +16,7 @@
 
 import BigNumber from 'bignumber.js';
 
-import * as abis from '../../contracts/abi';
+import * as abis from '~/contracts/abi';
 import { api } from './parity';
 
 let managerInstance;

js/src/dapps/dappreg/dappsStore.js

@@ -17,8 +17,8 @@
 import BigNumber from 'bignumber.js';
 import { action, computed, observable, transaction } from 'mobx';
 
-import * as abis from '../../contracts/abi';
+import * as abis from '~/contracts/abi';
-import builtins from '../../views/Dapps/builtin.json';
+import builtins from '~/views/Dapps/builtin.json';
 
 import { api } from './parity';
 

js/src/dapps/githubhint/services.js

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-import * as abis from '../../contracts/abi';
+import * as abis from '~/contracts/abi';
 import { api } from './parity';
 
 export function attachInterface () {

js/src/dapps/index.ejs

@@ -8,7 +8,7 @@
     <style>
       html, body, #container {
         width: 100%;
-        height: 100%;
+        min-height: 100%;
         margin: 0;
         padding: 0;
         background: white;

js/src/dapps/registry/Application/application.js

@@ -21,6 +21,9 @@ const muiTheme = getMuiTheme(lightBaseTheme);
 
 import CircularProgress from 'material-ui/CircularProgress';
 import { Card, CardText } from 'material-ui/Card';
+
+import { nullableProptype } from '~/util/proptypes';
+
 import styles from './application.css';
 import Accounts from '../Accounts';
 import Events from '../Events';
@@ -28,8 +31,6 @@ import Lookup from '../Lookup';
 import Names from '../Names';
 import Records from '../Records';
 
-const nullable = (type) => React.PropTypes.oneOfType([ React.PropTypes.oneOf([ null ]), type ]);
-
 export default class Application extends Component {
   static childContextTypes = {
     muiTheme: PropTypes.object.isRequired,
@@ -44,8 +45,8 @@ export default class Application extends Component {
     actions: PropTypes.object.isRequired,
     accounts: PropTypes.object.isRequired,
     contacts: PropTypes.object.isRequired,
-    contract: nullable(PropTypes.object.isRequired),
+    contract: nullableProptype(PropTypes.object.isRequired),
-    fee: nullable(PropTypes.object.isRequired),
+    fee: nullableProptype(PropTypes.object.isRequired),
     lookup: PropTypes.object.isRequired,
     events: PropTypes.object.isRequired,
     names: PropTypes.object.isRequired,

js/src/dapps/registry/Container.js

@@ -18,19 +18,19 @@ import React, { Component, PropTypes } from 'react';
 import { connect } from 'react-redux';
 import { bindActionCreators } from 'redux';
 
+import { nullableProptype } from '~/util/proptypes';
+
 import Application from './Application';
 import * as actions from './actions';
 
-const nullable = (type) => React.PropTypes.oneOfType([ React.PropTypes.oneOf([ null ]), type ]);
-
 class Container extends Component {
   static propTypes = {
     actions: PropTypes.object.isRequired,
     accounts: PropTypes.object.isRequired,
     contacts: PropTypes.object.isRequired,
-    contract: nullable(PropTypes.object.isRequired),
+    contract: nullableProptype(PropTypes.object.isRequired),
-    owner: nullable(PropTypes.string.isRequired),
+    owner: nullableProptype(PropTypes.string.isRequired),
-    fee: nullable(PropTypes.object.isRequired),
+    fee: nullableProptype(PropTypes.object.isRequired),
     lookup: PropTypes.object.isRequired,
     events: PropTypes.object.isRequired
   };

js/src/dapps/registry/Lookup/lookup.js

@@ -19,21 +19,22 @@ import { Card, CardHeader, CardText } from 'material-ui/Card';
 import TextField from 'material-ui/TextField';
 import RaisedButton from 'material-ui/RaisedButton';
 import SearchIcon from 'material-ui/svg-icons/action/search';
+
+import { nullableProptype } from '~/util/proptypes';
+
 import renderAddress from '../ui/address.js';
 import renderImage from '../ui/image.js';
 
 import recordTypeSelect from '../ui/record-type-select.js';
 import styles from './lookup.css';
 
-const nullable = (type) => React.PropTypes.oneOfType([ React.PropTypes.oneOf([ null ]), type ]);
-
 export default class Lookup extends Component {
 
   static propTypes = {
     actions: PropTypes.object.isRequired,
     name: PropTypes.string.isRequired,
     type: PropTypes.string.isRequired,
-    result: nullable(PropTypes.string.isRequired),
+    result: nullableProptype(PropTypes.string.isRequired),
     accounts: PropTypes.object.isRequired,
     contacts: PropTypes.object.isRequired
   }

js/src/dapps/registry/Records/records.js

@@ -1,3 +1,19 @@
+// Copyright 2015, 2016 Ethcore (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
 import React, { Component, PropTypes } from 'react';
 import { Card, CardHeader, CardText } from 'material-ui/Card';
 import TextField from 'material-ui/TextField';

js/src/dapps/registry/actions.js

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-import { registry as registryAbi } from '../../contracts/abi';
+import { registry as registryAbi } from '~/contracts/abi';
 
 import { api } from './parity.js';
 import * as addresses from './addresses/actions.js';

js/src/dapps/registry/addresses/actions.js

@@ -24,7 +24,6 @@ export const fetch = () => (dispatch) => {
     .then((accountsInfo) => {
       const addresses = Object
         .keys(accountsInfo)
-        .filter((address) => accountsInfo[address] && !accountsInfo[address].meta.deleted)
         .map((address) => ({
           ...accountsInfo[address],
           address,

js/src/dapps/signaturereg/services.js

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-import * as abis from '../../contracts/abi';
+import * as abis from '~/contracts/abi';
 import { api } from './parity';
 
 const sortEvents = (a, b) => b.blockNumber.cmp(a.blockNumber) || b.logIndex.cmp(a.logIndex);

js/src/dapps/tokenreg/Status/actions.js

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-import Contracts from '../../../contracts';
+import Contracts from '~/contracts';
 
 import { loadToken, setTokenPending, deleteToken, setTokenData } from '../Tokens/actions';
 

js/src/dapps/tokenreg/utils.js

@@ -16,7 +16,7 @@
 
 import { api } from './parity';
 
-import { eip20 as eip20Abi } from '../../contracts/abi';
+import { eip20 as eip20Abi } from '~/contracts/abi';
 
 export const getTokenTotalSupply = (tokenAddress) => {
   return api

js/src/index.js

@@ -25,19 +25,18 @@ import ReactDOM from 'react-dom';
 import { AppContainer } from 'react-hot-loader';
 
 import injectTapEventPlugin from 'react-tap-event-plugin';
-import { createHashHistory } from 'history';
+import { hashHistory } from 'react-router';
-import { useRouterHistory } from 'react-router';
 import qs from 'querystring';
 
 import SecureApi from './secureApi';
-import ContractInstances from './contracts';
+import ContractInstances from '~/contracts';
 
 import { initStore } from './redux';
-import ContextProvider from './ui/ContextProvider';
+import ContextProvider from '~/ui/ContextProvider';
-import muiTheme from './ui/Theme';
+import muiTheme from '~/ui/Theme';
 import MainApplication from './main';
 
-import { setApi } from './redux/providers/apiActions';
+import { setApi } from '~/redux/providers/apiActions';
 
 import './environment';
 
@@ -74,13 +73,11 @@ store.dispatch(setApi(api));
 
 window.secureApi = api;
 
-const routerHistory = useRouterHistory(createHashHistory)({});
-
 ReactDOM.render(
   <AppContainer>
     <ContextProvider api={ api } muiTheme={ muiTheme } store={ store }>
       <MainApplication
-        routerHistory={ routerHistory }
+        routerHistory={ hashHistory }
       />
     </ContextProvider>
   </AppContainer>,
@@ -88,24 +85,6 @@ ReactDOM.render(
 );
 
 if (module.hot) {
-  // module.hot.accept('./redux', () => {
-  //   // redux store has a method replaceReducer
-  //   // const newStore = initStore(api);
-  //   console.warn('REDUX UPDATE');
-  //   // store.replaceReducer(appReducer);
-
-  //   // ReactDOM.render(
-  //   //   <AppContainer>
-  //   //     <ContextProvider api={ api } muiTheme={ muiTheme } store={ newStore }>
-  //   //       <MainApplication
-  //   //         routerHistory={ routerHistory }
-  //   //       />
-  //   //     </ContextProvider>
-  //   //   </AppContainer>,
-  //   //   document.querySelector('#container')
-  //   // );
-  // });
-
   module.hot.accept('./main.js', () => {
     require('./main.js');
 
@@ -113,7 +92,7 @@ if (module.hot) {
       <AppContainer>
         <ContextProvider api={ api } muiTheme={ muiTheme } store={ store }>
           <MainApplication
-            routerHistory={ routerHistory }
+            routerHistory={ hashHistory }
           />
         </ContextProvider>
       </AppContainer>,

js/src/jsonrpc/interfaces/parity.js

@@ -256,6 +256,20 @@ export default {
     }
   },
 
+  removeAddress: {
+    desc: 'Removes an address from the addressbook',
+    params: [
+      {
+        type: Address,
+        desc: 'The address to remove'
+      }
+    ],
+    returns: {
+      type: Boolean,
+      desc: 'true on success'
+    }
+  },
+
   listGethAccounts: {
     desc: 'Returns a list of the accounts available from Geth',
     params: [],