Merge branch 'master' of github.com:ethcore/parity into tx-block

.gitignore

@@ -32,3 +32,5 @@
 out/
 
 .vscode
+
+/parity.*

.gitlab-ci.yml

@@ -20,8 +20,10 @@ linux-stable:
     - stable
     - triggers
   script:
+    - curl --data "secret=$RELEASES_SECRET" http://icarus.parity.io/push-release/$CI_BUILD_REF_NAME/$CI_BUILD_REF
     - cargo build -j $(nproc) --release $CARGOFLAGS
     - strip target/release/parity
+    - export SHA3=$(target/release/parity tools hash target/release/parity)
     - md5sum target/release/parity > parity.md5
     - sh scripts/deb-build.sh amd64
     - cp target/release/parity deb/usr/bin/parity
@@ -36,6 +38,7 @@ linux-stable:
     - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/x86_64-unknown-linux-gnu/parity.md5 --body parity.md5
     - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/x86_64-unknown-linux-gnu/"parity_"$VER"_amd64.deb" --body "parity_"$VER"_amd64.deb"
     - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/x86_64-unknown-linux-gnu/"parity_"$VER"_amd64.deb.md5" --body "parity_"$VER"_amd64.deb.md5"
+    - curl --data "commit=$CI_BUILD_REF&sha3=$SHA3&filename=parity&secret=$RELEASES_SECRET" http://icarus.parity.io/push-build/$CI_BUILD_REF_NAME/x86_64-unknown-linux-gnu
   tags:
     - rust
     - rust-stable
@@ -92,15 +95,18 @@ linux-centos:
   script:
     - export CXX="g++"
     - export CC="gcc"
+    - export PLATFORM=x86_64-unknown-centos-gnu
     - cargo build -j $(nproc) --release $CARGOFLAGS
     - strip target/release/parity
     - md5sum target/release/parity > parity.md5
+    - export SHA3=$(target/release/parity tools hash target/release/parity)
     - aws configure set aws_access_key_id $s3_key
     - aws configure set aws_secret_access_key $s3_secret
     - if [[ $CI_BUILD_REF_NAME =~ ^(master|beta|stable)$ ]]; then export S3_BUCKET=builds-parity-published; else export S3_BUCKET=builds-parity; fi
     - aws s3 rm --recursive s3://$S3_BUCKET/$CI_BUILD_REF_NAME/x86_64-unknown-centos-gnu
     - aws s3api put-object --bucket builds-parity --key $CI_BUILD_REF_NAME/x86_64-unknown-centos-gnu/parity --body target/release/parity
     - aws s3api put-object --bucket builds-parity --key $CI_BUILD_REF_NAME/x86_64-unknown-centos-gnu/parity.md5 --body parity.md5
+    - curl --data "commit=$CI_BUILD_REF&sha3=$SHA3&filename=parity&secret=$RELEASES_SECRET" http://icarus.parity.io/push-build/$CI_BUILD_REF_NAME/$PLATFORM
   tags:
     - rust
     - rust-centos
@@ -119,22 +125,26 @@ linux-i686:
   script:
     - export HOST_CC=gcc
     - export HOST_CXX=g++
+    - export COMMIT=$(git rev-parse HEAD)
+    - export PLATFORM=i686-unknown-linux-gnu
     - cargo build -j $(nproc) --target i686-unknown-linux-gnu --release $CARGOFLAGS
-    - strip target/i686-unknown-linux-gnu/release/parity
+    - strip target/$PLATFORM/release/parity
-    - md5sum target/i686-unknown-linux-gnu/release/parity > parity.md5
+    - md5sum target/$PLATFORM/release/parity > parity.md5
+    - export SHA3=$(target/$PLATFORM/release/parity tools hash target/$PLATFORM/release/parity)
     - sh scripts/deb-build.sh i386
-    - cp target/i686-unknown-linux-gnu/release/parity deb/usr/bin/parity
+    - cp target/$PLATFORM/release/parity deb/usr/bin/parity
     - export VER=$(grep -m 1 version Cargo.toml | awk '{print $3}' | tr -d '"' | tr -d "\n")
     - dpkg-deb -b deb "parity_"$VER"_i386.deb"
     - md5sum "parity_"$VER"_i386.deb" > "parity_"$VER"_i386.deb.md5"
     - aws configure set aws_access_key_id $s3_key
     - aws configure set aws_secret_access_key $s3_secret
     - if [[ $CI_BUILD_REF_NAME =~ ^(master|beta|stable)$ ]]; then export S3_BUCKET=builds-parity-published; else export S3_BUCKET=builds-parity; fi
-    - aws s3 rm --recursive s3://$S3_BUCKET/$CI_BUILD_REF_NAME/i686-unknown-linux-gnu
+    - aws s3 rm --recursive s3://$S3_BUCKET/$CI_BUILD_REF_NAME/$PLATFORM
-    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/i686-unknown-linux-gnu/parity --body target/i686-unknown-linux-gnu/release/parity
+    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/$PLATFORM/parity --body target/$PLATFORM/release/parity
-    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/i686-unknown-linux-gnu/parity.md5 --body parity.md5
+    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/$PLATFORM/parity.md5 --body parity.md5
-    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/i686-unknown-linux-gnu/"parity_"$VER"_i386.deb" --body "parity_"$VER"_i386.deb"
+    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/$PLATFORM/"parity_"$VER"_i386.deb" --body "parity_"$VER"_i386.deb"
-    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/i686-unknown-linux-gnu/"parity_"$VER"_i386.deb.md5" --body "parity_"$VER"_i386.deb.md5"
+    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/$PLATFORM/"parity_"$VER"_i386.deb.md5" --body "parity_"$VER"_i386.deb.md5"
+    - curl --data "commit=$CI_BUILD_REF&sha3=$SHA3&filename=parity&secret=$RELEASES_SECRET" http://icarus.parity.io/push-build/$CI_BUILD_REF_NAME/$PLATFORM
   tags:
     - rust
     - rust-i686
@@ -292,7 +302,6 @@ linux-aarch64:
     - aws configure set aws_secret_access_key $s3_secret
     - if [[ $CI_BUILD_REF_NAME =~ ^(master|beta|stable)$ ]]; then export S3_BUCKET=builds-parity-published; else export S3_BUCKET=builds-parity; fi
     - aws s3 rm --recursive s3://$S3_BUCKET/$CI_BUILD_REF_NAME/aarch64-unknown-linux-gnu
-    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/aarch64-unknown-linux-gnu/parity --body target/aarch64-unknown-linux-gnu/release/parity
     - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/aarch64-unknown-linux-gnu/parity.md5 --body parity.md5
     - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/aarch64-unknown-linux-gnu/"parity_"$VER"_arm64.deb" --body "parity_"$VER"_arm64.deb"
     - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/aarch64-unknown-linux-gnu/"parity_"$VER"_arm64.deb.md5" --body "parity_"$VER"_arm64.deb.md5"
@@ -312,10 +321,13 @@ darwin:
     - stable
     - triggers
   script:
+    - export COMMIT=$(git rev-parse HEAD)
+    - export PLATFORM=x86_64-apple-darwin
     - cargo build -j 8 --release #$CARGOFLAGS
     - cargo build -j 8 --release -p ethstore #$CARGOFLAGS
     - rm -rf parity.md5
     - md5sum target/release/parity > parity.md5
+    - export SHA3=$(target/release/parity tools hash target/release/parity)
     - packagesbuild -v mac/Parity.pkgproj
     - export VER=$(grep -m 1 version Cargo.toml | awk '{print $3}' | tr -d '"' | tr -d "\n")
     - mv target/release/Parity\ Ethereum.pkg "parity-"$VER"-osx-installer-EXPERIMENTAL.pkg"
@@ -323,11 +335,12 @@ darwin:
     - aws configure set aws_access_key_id $s3_key
     - aws configure set aws_secret_access_key $s3_secret
     - if [[ $CI_BUILD_REF_NAME =~ ^(master|beta|stable)$ ]]; then export S3_BUCKET=builds-parity-published; else export S3_BUCKET=builds-parity; fi
-    - aws s3 rm --recursive s3://$S3_BUCKET/$CI_BUILD_REF_NAME/x86_64-apple-darwin
+    - aws s3 rm --recursive s3://$S3_BUCKET/$CI_BUILD_REF_NAME/$PLATFORM
-    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/x86_64-apple-darwin/parity --body target/release/parity
+    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/$PLATFORM/parity --body target/release/parity
-    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/x86_64-apple-darwin/parity.md5 --body parity.md5
+    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/$PLATFORM/parity.md5 --body parity.md5
-    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/x86_64-apple-darwin/"parity-"$VER"-osx-installer-EXPERIMENTAL.pkg" --body "parity-"$VER"-osx-installer-EXPERIMENTAL.pkg"
+    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/$PLATFORM/"parity-"$VER"-osx-installer-EXPERIMENTAL.pkg" --body "parity-"$VER"-osx-installer-EXPERIMENTAL.pkg"
-    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/x86_64-apple-darwin/"parity-"$VER"-osx-installer-EXPERIMENTAL.pkg.md5" --body "parity-"$VER"-osx-installer-EXPERIMENTAL.pkg.md5"
+    - aws s3api put-object --bucket $S3_BUCKET --key $CI_BUILD_REF_NAME/$PLATFORM/"parity-"$VER"-osx-installer-EXPERIMENTAL.pkg.md5" --body "parity-"$VER"-osx-installer-EXPERIMENTAL.pkg.md5"
+    - curl --data "commit=$CI_BUILD_REF&sha3=$SHA3&filename=parity&secret=$RELEASES_SECRET" http://icarus.parity.io/push-build/$CI_BUILD_REF_NAME/$PLATFORM
   tags:
     - osx
   artifacts:
@@ -345,12 +358,14 @@ windows:
     - stable
     - triggers
   script:
+    - set PLATFORM=x86_64-pc-windows-msvc
     - set INCLUDE=C:\Program Files (x86)\Microsoft SDKs\Windows\v7.1A\Include;C:\vs2015\VC\include;C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt
     - set LIB=C:\vs2015\VC\lib;C:\Program Files (x86)\Windows Kits\10\Lib\10.0.10240.0\ucrt\x64
     - set RUST_BACKTRACE=1
     - set RUSTFLAGS=%RUSTFLAGS%
     - rustup default stable-x86_64-pc-windows-msvc
     - cargo build --release #%CARGOFLAGS%
+    - FOR /F "tokens=* USEBACKQ" %%i IN ('target\release\parity.exe tools hash target\release\parity.exe') DO set SHA3=%%i
     - curl -sL --url "https://github.com/ethcore/win-build/raw/master/SimpleFC.dll" -o nsis\SimpleFC.dll
     - curl -sL --url "https://github.com/ethcore/win-build/raw/master/vc_redist.x64.exe" -o nsis\vc_redist.x64.exe
     - signtool sign /f %keyfile% /p %certpass% target\release\parity.exe
@@ -385,6 +400,7 @@ windows:
     - aws s3api put-object --bucket %S3_BUCKET% --key %CI_BUILD_REF_NAME%/x86_64-pc-windows-msvc/InstallParity.exe.md5 --body nsis\InstallParity.exe.md5
     - aws s3api put-object --bucket %S3_BUCKET% --key %CI_BUILD_REF_NAME%/x86_64-pc-windows-msvc/win-installer.zip --body nsis\win-installer.zip
     - aws s3api put-object --bucket %S3_BUCKET% --key %CI_BUILD_REF_NAME%/x86_64-pc-windows-msvc/win-installer.zip.md5 --body nsis\win-installer.zip.md5
+    - curl --data "commit=$CI_BUILD_REF&sha3=%SHA3%&filename=parity.exe&secret=%RELEASES_SECRET%" http://icarus.parity.io/push-build/$CI_BUILD_REF_NAME/%PLATFORM%
   tags:
    - rust-windows
   artifacts:
@@ -399,9 +415,10 @@ test-darwin:
     - triggers
   before_script:
     - git submodule update --init --recursive
+    - export RUST_FILES_MODIFIED=$(git --no-pager diff --name-only $CI_BUILD_REF^ $CI_BUILD_REF | grep -v -e ^js -e ^\\. -e ^LICENSE -e ^README.md -e ^appveyor.yml -e ^test.sh -e ^windows/ -e ^scripts/ -e^mac/ -e ^nsis/ | wc -l)
   script:
     - export RUST_BACKTRACE=1
-    - ./test.sh $CARGOFLAGS
+    - if [ $RUST_FILES_MODIFIED -eq 0 ]; then echo "Skipping Rust tests since no Rust files modified."; else ./test.sh $CARGOFLAGS; fi
   tags:
     - osx
   allow_failure: true
@@ -413,7 +430,7 @@ test-windows:
     - git submodule update --init --recursive
   script:
     - set RUST_BACKTRACE=1
-    - cargo -j 8 test --features json-tests -p rlp -p ethash -p ethcore -p ethcore-bigint -p ethcore-dapps -p ethcore-rpc -p ethcore-signer -p ethcore-util -p ethcore-network -p ethcore-io -p ethkey -p ethstore -p ethsync -p ethcore-ipc -p ethcore-ipc-tests -p ethcore-ipc-nano -p parity %CARGOFLAGS% --verbose --release
+    - echo cargo test --features json-tests -p rlp -p ethash -p ethcore -p ethcore-bigint -p ethcore-dapps -p ethcore-rpc -p ethcore-signer -p ethcore-util -p ethcore-network -p ethcore-io -p ethkey -p ethstore -p ethsync -p ethcore-ipc -p ethcore-ipc-tests -p ethcore-ipc-nano -p parity %CARGOFLAGS% --verbose --release
   tags:
     - rust-windows
   allow_failure: true
@@ -448,10 +465,10 @@ test-rust-beta:
   image: ethcore/rust:beta
   before_script:
     - git submodule update --init --recursive
+    - export RUST_FILES_MODIFIED=$(git --no-pager diff --name-only $CI_BUILD_REF^ $CI_BUILD_REF | grep -v -e ^js -e ^\\. -e ^LICENSE -e ^README.md -e ^appveyor.yml -e ^test.sh -e ^windows/ -e ^scripts/ -e^mac/ -e ^nsis/ | wc -l)
   script:
     - export RUST_BACKTRACE=1
-    - echo $JS_FILES_MODIFIED
+    - if [ $RUST_FILES_MODIFIED -eq 0 ]; then echo "Skipping Rust tests since no Rust files modified."; else ./test.sh $CARGOFLAGS; fi
-    - ./test.sh $CARGOFLAGS
   tags:
     - rust
     - rust-beta
@@ -463,9 +480,10 @@ test-rust-nightly:
   image: ethcore/rust:nightly
   before_script:
     - git submodule update --init --recursive
+    - export RUST_FILES_MODIFIED=$(git --no-pager diff --name-only $CI_BUILD_REF^ $CI_BUILD_REF | grep -v -e ^js -e ^\\. -e ^LICENSE -e ^README.md -e ^appveyor.yml -e ^test.sh -e ^windows/ -e ^scripts/ -e^mac/ -e ^nsis/ | wc -l)
   script:
     - export RUST_BACKTRACE=1
-    - ./test.sh $CARGOFLAGS
+    - if [ $RUST_FILES_MODIFIED -eq 0 ]; then echo "Skipping Rust tests since no Rust files modified."; else ./test.sh $CARGOFLAGS; fi
   tags:
     - rust
     - rust-nightly

Cargo.lock

@@ -12,7 +12,6 @@ dependencies = [
  "ethcore 1.5.0",
  "ethcore-dapps 1.5.0",
  "ethcore-devtools 1.5.0",
- "ethcore-hash-fetch 1.5.0",
  "ethcore-io 1.5.0",
  "ethcore-ipc 1.5.0",
  "ethcore-ipc-codegen 1.5.0",
@@ -33,14 +32,16 @@ dependencies = [
  "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)",
  "number_prefix 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parity-hash-fetch 1.5.0",
  "parity-rpc-client 1.4.0",
+ "parity-updater 1.5.0",
  "regex 0.1.68 (registry+https://github.com/rust-lang/crates.io-index)",
  "rlp 0.1.0",
  "rpassword 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rpc-cli 1.4.0",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "semver 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "semver 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 0.8.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -306,6 +307,7 @@ 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)",
+ "ethabi 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethash 1.5.0",
  "ethcore-bloom-journal 0.1.0",
  "ethcore-devtools 1.5.0",
@@ -330,7 +332,7 @@ dependencies = [
  "rlp 0.1.0",
  "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "semver 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "semver 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "transient-hashmap 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -359,7 +361,6 @@ 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 1.5.0",
- "ethcore-hash-fetch 1.5.0",
  "ethcore-rpc 1.5.0",
  "ethcore-util 1.5.0",
  "fetch 0.1.0",
@@ -371,6 +372,7 @@ dependencies = [
  "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-hash-fetch 1.5.0",
  "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)",
@@ -390,18 +392,6 @@ dependencies = [
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "ethcore-hash-fetch"
-version = "1.5.0"
-dependencies = [
- "ethabi 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethcore-util 1.5.0",
- "fetch 0.1.0",
- "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "mime_guess 1.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "ethcore-io"
 version = "1.5.0"
@@ -420,7 +410,7 @@ dependencies = [
  "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)",
+ "semver 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -443,7 +433,7 @@ dependencies = [
  "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)",
+ "semver 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -468,7 +458,7 @@ dependencies = [
  "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)",
- "semver 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "semver 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -546,8 +536,10 @@ dependencies = [
  "jsonrpc-ipc-server 0.2.4 (git+https://github.com/ethcore/jsonrpc.git)",
  "jsonrpc-macros 0.1.0 (git+https://github.com/ethcore/jsonrpc.git)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parity-updater 1.5.0",
  "rlp 0.1.0",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "semver 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 0.8.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_codegen 0.8.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -589,7 +581,7 @@ dependencies = [
  "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)",
- "semver 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "semver 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -705,7 +697,7 @@ dependencies = [
  "parking_lot 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)",
  "rlp 0.1.0",
- "semver 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "semver 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -794,6 +786,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "https-fetch"
 version = "0.1.0"
 dependencies = [
+ "ethabi 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)",
  "mio 0.5.1 (git+https://github.com/ethcore/mio?branch=v0.5.x)",
  "rustls 0.1.2 (git+https://github.com/ctz/rustls)",
@@ -860,6 +853,17 @@ dependencies = [
  "xmltree 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "ipc-common-types"
+version = "1.5.0"
+dependencies = [
+ "ethcore-ipc 1.5.0",
+ "ethcore-ipc-codegen 1.5.0",
+ "ethcore-util 1.5.0",
+ "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "semver 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "isatty"
 version = "0.1.1"
@@ -1312,6 +1316,18 @@ dependencies = [
  "syntex_syntax 0.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "parity-hash-fetch"
+version = "1.5.0"
+dependencies = [
+ "ethabi 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethcore-util 1.5.0",
+ "fetch 0.1.0",
+ "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mime_guess 1.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "parity-rpc-client"
 version = "1.4.0"
@@ -1351,11 +1367,26 @@ dependencies = [
 [[package]]
 name = "parity-ui-precompiled"
 version = "1.4.0"
-source = "git+https://github.com/ethcore/js-precompiled.git#2d07c405453bcf1e603c3965387b7f920565b6d8"
+source = "git+https://github.com/ethcore/js-precompiled.git#3d390b35737ce212d358f26b5ec8d9644b252a88"
 dependencies = [
  "parity-dapps-glue 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "parity-updater"
+version = "1.5.0"
+dependencies = [
+ "ethabi 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethcore 1.5.0",
+ "ethcore-ipc 1.5.0",
+ "ethcore-ipc-codegen 1.5.0",
+ "ethcore-util 1.5.0",
+ "ethsync 1.5.0",
+ "ipc-common-types 1.5.0",
+ "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parity-hash-fetch 1.5.0",
+]
+
 [[package]]
 name = "parking_lot"
 version = "0.3.6"
@@ -1674,6 +1705,23 @@ dependencies = [
  "nom 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "semver"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "semver-parser 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "semver-parser"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 0.1.68 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "serde"
 version = "0.8.4"
@@ -2240,6 +2288,8 @@ dependencies = [
 "checksum rustls 0.1.2 (git+https://github.com/ctz/rustls)" = "<none>"
 "checksum semver 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)" = "d4f410fedcf71af0345d7607d246e7ad15faaadd49d240ee3b24e5dc21a820ac"
 "checksum semver 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2d5b7638a1f03815d94e88cb3b3c08e87f0db4d683ef499d1836aaf70a45623f"
+"checksum semver 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ae2ff60ecdb19c255841c066cbfa5f8c2a4ada1eb3ae47c77ab6667128da71f5"
+"checksum semver-parser 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e88e43a5a74dd2a11707f9c21dfd4a423c66bd871df813227bb0a3e78f3a1ae9"
 "checksum serde 0.8.4 (registry+https://github.com/rust-lang/crates.io-index)" = "b1dfda9ebb31d29fa8b94d7eb3031a86a8dcec065f0fe268a30f98867bf45775"
 "checksum serde_codegen 0.8.4 (registry+https://github.com/rust-lang/crates.io-index)" = "e422ae53d7933f59c6ff57e7b5870b5c9094b1f473f78ec33d89f8a692c3ec02"
 "checksum serde_codegen_internals 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f877e2781ed0a323295d1c9f0e26556117b5a11489fc47b1848dfb98b3173d21"

Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-description = "Ethcore client."
+description = "Parity Ethereum client"
 name = "parity"
 version = "1.5.0"
 license = "GPL-3.0"
@@ -20,7 +20,7 @@ time = "0.1"
 num_cpus = "0.2"
 number_prefix = "0.2"
 rpassword = "0.2.1"
-semver = "0.2"
+semver = "0.5"
 ansi_term = "0.7"
 lazy_static = "0.2"
 regex = "0.1"
@@ -32,25 +32,26 @@ app_dirs = "1.1.1"
 hyper = { version = "0.9", default-features = false }
 ctrlc = { git = "https://github.com/ethcore/rust-ctrlc.git" }
 fdlimit = "0.1"
+clippy = { version = "0.0.103", optional = true}
+rlp = { path = "util/rlp" }
+ethsync = { path = "sync" }
 ethcore = { path = "ethcore" }
 ethcore-util = { path = "util" }
-ethsync = { path = "sync" }
 ethcore-io = { path = "util/io" }
 ethcore-devtools = { path = "devtools" }
 ethcore-rpc = { path = "rpc" }
 ethcore-signer = { path = "signer" }
-ethcore-ipc-nano = { path = "ipc/nano" }
 ethcore-ipc = { path = "ipc/rpc" }
+ethcore-ipc-nano = { path = "ipc/nano" }
 ethcore-ipc-hypervisor = { path = "ipc/hypervisor" }
 ethcore-logger = { path = "logger" }
-ethcore-hash-fetch = { path = "ethcore/hash-fetch" }
-rlp = { path = "util/rlp" }
 ethcore-stratum = { path = "stratum" }
 ethcore-dapps = { path = "dapps", optional = true }
-clippy = { version = "0.0.103", optional = true}
 rpc-cli = { path = "rpc_cli" }
 parity-rpc-client = { path = "rpc_client" }
 ethcore-light = { path = "ethcore/light" }
+parity-hash-fetch = { path = "hash-fetch" }
+parity-updater = { path = "updater" } 
 
 [target.'cfg(windows)'.dependencies]
 winapi = "0.2"

dapps/Cargo.toml

@@ -30,9 +30,9 @@ zip = { version = "0.1", default-features = false }
 ethcore-devtools = { path = "../devtools" }
 ethcore-rpc = { path = "../rpc" }
 ethcore-util = { path = "../util" }
-ethcore-hash-fetch = { path = "../ethcore/hash-fetch" }
 fetch = { path = "../util/fetch" }
 parity-ui = { path = "./ui" }
+parity-hash-fetch = { path = "../hash-fetch" }
 
 clippy = { version = "0.0.103", optional = true}
 

dapps/src/apps/fetcher.rs

@@ -120,7 +120,7 @@ impl<R: URLHint> ContentFetcher<R> {
 				// Content is already being fetched
 				Some(&mut ContentStatus::Fetching(ref fetch_control)) => {
 					trace!(target: "dapps", "Content fetching in progress. Waiting...");
-					(None, fetch_control.to_handler(control))
+					(None, fetch_control.to_async_handler(path, control))
 				},
 				// We need to start fetching the content
 				None => {
@@ -129,11 +129,12 @@ impl<R: URLHint> ContentFetcher<R> {
 					let content = self.resolver.resolve(content_hex);
 
 					let cache = self.cache.clone();
-					let on_done = move |id: String, result: Option<LocalPageEndpoint>| {
+					let id = content_id.clone();
+					let on_done = move |result: Option<LocalPageEndpoint>| {
 						let mut cache = cache.lock();
 						match result {
 							Some(endpoint) => {
-								cache.insert(id, ContentStatus::Ready(endpoint));
+								cache.insert(id.clone(), ContentStatus::Ready(endpoint));
 							},
 							// In case of error
 							None => {
@@ -150,6 +151,7 @@ impl<R: URLHint> ContentFetcher<R> {
 						Some(URLHintResult::Dapp(dapp)) => {
 							let (handler, fetch_control) = ContentFetcherHandler::new(
 								dapp.url(),
+								path,
 								control,
 								DappInstaller {
 									id: content_id.clone(),
@@ -165,6 +167,7 @@ impl<R: URLHint> ContentFetcher<R> {
 						Some(URLHintResult::Content(content)) => {
 							let (handler, fetch_control) = ContentFetcherHandler::new(
 								content.url,
+								path,
 								control,
 								ContentInstaller {
 									id: content_id.clone(),
@@ -248,43 +251,45 @@ struct ContentInstaller {
 	id: String,
 	mime: String,
 	content_path: PathBuf,
-	on_done: Box<Fn(String, Option<LocalPageEndpoint>) + Send>,
+	on_done: Box<Fn(Option<LocalPageEndpoint>) + Send>,
 }
 
 impl ContentValidator for ContentInstaller {
 	type Error = ValidationError;
 
-	fn validate_and_install(&self, path: PathBuf) -> Result<(String, LocalPageEndpoint), ValidationError> {
+	fn validate_and_install(&self, path: PathBuf) -> Result<LocalPageEndpoint, ValidationError> {
-		// Create dir
+		let validate = || {
-		try!(fs::create_dir_all(&self.content_path));
+			// Create dir
+			try!(fs::create_dir_all(&self.content_path));
 
-		// Validate hash
+			// Validate hash
-		let mut file_reader = io::BufReader::new(try!(fs::File::open(&path)));
+			let mut file_reader = io::BufReader::new(try!(fs::File::open(&path)));
-		let hash = try!(sha3(&mut file_reader));
+			let hash = try!(sha3(&mut file_reader));
-		let id = try!(self.id.as_str().parse().map_err(|_| ValidationError::InvalidContentId));
+			let id = try!(self.id.as_str().parse().map_err(|_| ValidationError::InvalidContentId));
-		if id != hash {
+			if id != hash {
-			return Err(ValidationError::HashMismatch {
+				return Err(ValidationError::HashMismatch {
-				expected: id,
+					expected: id,
-				got: hash,
+					got: hash,
-			});
+				});
-		}
+			}
 
-		// And prepare path for a file
+			// And prepare path for a file
-		let filename = path.file_name().expect("We always fetch a file.");
+			let filename = path.file_name().expect("We always fetch a file.");
-		let mut content_path = self.content_path.clone();
+			let mut content_path = self.content_path.clone();
-		content_path.push(&filename);
+			content_path.push(&filename);
 
-		if content_path.exists() {
+			if content_path.exists() {
-			try!(fs::remove_dir_all(&content_path))
+				try!(fs::remove_dir_all(&content_path))
-		}
+			}
 
-		try!(fs::copy(&path, &content_path));
+			try!(fs::copy(&path, &content_path));
+			Ok(LocalPageEndpoint::single_file(content_path, self.mime.clone(), PageCache::Enabled))
+		};
 
-		Ok((self.id.clone(), LocalPageEndpoint::single_file(content_path, self.mime.clone(), PageCache::Enabled)))
+		// Make sure to always call on_done (even in case of errors)!
-	}
+		let result = validate();
-
+		(self.on_done)(result.as_ref().ok().cloned());
-	fn done(&self, endpoint: Option<LocalPageEndpoint>) {
+		result
-		(self.on_done)(self.id.clone(), endpoint)
 	}
 }
 
@@ -292,7 +297,7 @@ impl ContentValidator for ContentInstaller {
 struct DappInstaller {
 	id: String,
 	dapps_path: PathBuf,
-	on_done: Box<Fn(String, Option<LocalPageEndpoint>) + Send>,
+	on_done: Box<Fn(Option<LocalPageEndpoint>) + Send>,
 	embeddable_on: Option<(String, u16)>,
 }
 
@@ -331,69 +336,68 @@ impl DappInstaller {
 impl ContentValidator for DappInstaller {
 	type Error = ValidationError;
 
-	fn validate_and_install(&self, app_path: PathBuf) -> Result<(String, LocalPageEndpoint), ValidationError> {
+	fn validate_and_install(&self, path: PathBuf) -> Result<LocalPageEndpoint, ValidationError> {
-		trace!(target: "dapps", "Opening dapp bundle at {:?}", app_path);
+		trace!(target: "dapps", "Opening dapp bundle at {:?}", path);
-		let mut file_reader = io::BufReader::new(try!(fs::File::open(app_path)));
+		let validate = || {
-		let hash = try!(sha3(&mut file_reader));
+			let mut file_reader = io::BufReader::new(try!(fs::File::open(path)));
-		let id = try!(self.id.as_str().parse().map_err(|_| ValidationError::InvalidContentId));
+			let hash = try!(sha3(&mut file_reader));
-		if id != hash {
+			let id = try!(self.id.as_str().parse().map_err(|_| ValidationError::InvalidContentId));
-			return Err(ValidationError::HashMismatch {
+			if id != hash {
-				expected: id,
+				return Err(ValidationError::HashMismatch {
-				got: hash,
+					expected: id,
-			});
+					got: hash,
-		}
+				});
-		let file = file_reader.into_inner();
+			}
-		// Unpack archive
+			let file = file_reader.into_inner();
-		let mut zip = try!(zip::ZipArchive::new(file));
+			// Unpack archive
-		// First find manifest file
+			let mut zip = try!(zip::ZipArchive::new(file));
-		let (mut manifest, manifest_dir) = try!(Self::find_manifest(&mut zip));
+			// First find manifest file
-		// Overwrite id to match hash
+			let (mut manifest, manifest_dir) = try!(Self::find_manifest(&mut zip));
-		manifest.id = self.id.clone();
+			// Overwrite id to match hash
+			manifest.id = self.id.clone();
 
-		let target = self.dapp_target_path(&manifest);
+			let target = self.dapp_target_path(&manifest);
 
-		// Remove old directory
+			// Remove old directory
-		if target.exists() {
+			if target.exists() {
-			warn!(target: "dapps", "Overwriting existing dapp: {}", manifest.id);
+				warn!(target: "dapps", "Overwriting existing dapp: {}", manifest.id);
-			try!(fs::remove_dir_all(target.clone()));
+				try!(fs::remove_dir_all(target.clone()));
-		}
+			}
 
-		// Unpack zip
+			// Unpack zip
-		for i in 0..zip.len() {
+			for i in 0..zip.len() {
-			let mut file = try!(zip.by_index(i));
+				let mut file = try!(zip.by_index(i));
-			// TODO [todr] Check if it's consistent on windows.
+				// TODO [todr] Check if it's consistent on windows.
-			let is_dir = file.name().chars().rev().next() == Some('/');
+				let is_dir = file.name().chars().rev().next() == Some('/');
 
-			let file_path = PathBuf::from(file.name());
+				let file_path = PathBuf::from(file.name());
-			let location_in_manifest_base = file_path.strip_prefix(&manifest_dir);
+				let location_in_manifest_base = file_path.strip_prefix(&manifest_dir);
-			// Create files that are inside manifest directory
+				// Create files that are inside manifest directory
-			if let Ok(location_in_manifest_base) = location_in_manifest_base {
+				if let Ok(location_in_manifest_base) = location_in_manifest_base {
-				let p = target.join(location_in_manifest_base);
+					let p = target.join(location_in_manifest_base);
-				// Check if it's a directory
+					// Check if it's a directory
-				if is_dir {
+					if is_dir {
-					try!(fs::create_dir_all(p));
+						try!(fs::create_dir_all(p));
-				} else {
+					} else {
-					let mut target = try!(fs::File::create(p));
+						let mut target = try!(fs::File::create(p));
-					try!(io::copy(&mut file, &mut target));
+						try!(io::copy(&mut file, &mut target));
+					}
 				}
 			}
-		}
 
-		// Write manifest
+			// Write manifest
-		let manifest_str = try!(serialize_manifest(&manifest).map_err(ValidationError::ManifestSerialization));
+			let manifest_str = try!(serialize_manifest(&manifest).map_err(ValidationError::ManifestSerialization));
-		let manifest_path = target.join(MANIFEST_FILENAME);
+			let manifest_path = target.join(MANIFEST_FILENAME);
-		let mut manifest_file = try!(fs::File::create(manifest_path));
+			let mut manifest_file = try!(fs::File::create(manifest_path));
-		try!(manifest_file.write_all(manifest_str.as_bytes()));
+			try!(manifest_file.write_all(manifest_str.as_bytes()));
+			// Create endpoint
+			let endpoint = LocalPageEndpoint::new(target, manifest.clone().into(), PageCache::Enabled, self.embeddable_on.clone());
+			Ok(endpoint)
+		};
 
-		// Create endpoint
+		let result = validate();
-		let app = LocalPageEndpoint::new(target, manifest.clone().into(), PageCache::Enabled, self.embeddable_on.clone());
+		(self.on_done)(result.as_ref().ok().cloned());
-
+		result
-		// Return modified app manifest
-		Ok((manifest.id.clone(), app))
-	}
-
-	fn done(&self, endpoint: Option<LocalPageEndpoint>) {
-		(self.on_done)(self.id.clone(), endpoint)
 	}
 }
 

dapps/src/handlers/fetch.rs

@@ -22,35 +22,41 @@ use std::sync::{mpsc, Arc};
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::time::{Instant, Duration};
 use util::Mutex;
-use url::Url;
 use fetch::{Client, Fetch, FetchResult};
 
 use hyper::{server, Decoder, Encoder, Next, Method, Control};
 use hyper::net::HttpStream;
+use hyper::uri::RequestUri;
 use hyper::status::StatusCode;
 
-use handlers::{ContentHandler, Redirection, extract_url};
+use endpoint::EndpointPath;
-use page::LocalPageEndpoint;
+use handlers::ContentHandler;
+use page::{LocalPageEndpoint, PageHandlerWaiting};
 
 const FETCH_TIMEOUT: u64 = 30;
 
 enum FetchState {
+	Waiting,
 	NotStarted(String),
 	Error(ContentHandler),
 	InProgress(mpsc::Receiver<FetchResult>),
-	Done(String, LocalPageEndpoint, Redirection),
+	Done(LocalPageEndpoint, Box<PageHandlerWaiting>),
+}
+
+enum WaitResult {
+	Error(ContentHandler),
+	Done(LocalPageEndpoint),
 }
 
 pub trait ContentValidator {
 	type Error: fmt::Debug + fmt::Display;
 
-	fn validate_and_install(&self, app: PathBuf) -> Result<(String, LocalPageEndpoint), Self::Error>;
+	fn validate_and_install(&self, path: PathBuf) -> Result<LocalPageEndpoint, Self::Error>;
-	fn done(&self, Option<LocalPageEndpoint>);
 }
 
 pub struct FetchControl {
 	abort: Arc<AtomicBool>,
-	listeners: Mutex<Vec<(Control, mpsc::Sender<FetchState>)>>,
+	listeners: Mutex<Vec<(Control, mpsc::Sender<WaitResult>)>>,
 	deadline: Instant,
 }
 
@@ -65,9 +71,10 @@ impl Default for FetchControl {
 }
 
 impl FetchControl {
-	fn notify<F: Fn() -> FetchState>(&self, status: F) {
+	fn notify<F: Fn() -> WaitResult>(&self, status: F) {
 		let mut listeners = self.listeners.lock();
 		for (control, sender) in listeners.drain(..) {
+			trace!(target: "dapps", "Resuming request waiting for content...");
 			if let Err(e) = sender.send(status()) {
 				trace!(target: "dapps", "Waiting listener notification failed: {:?}", e);
 			} else {
@@ -78,9 +85,9 @@ impl FetchControl {
 
 	fn set_status(&self, status: &FetchState) {
 		match *status {
-			FetchState::Error(ref handler) => self.notify(|| FetchState::Error(handler.clone())),
+			FetchState::Error(ref handler) => self.notify(|| WaitResult::Error(handler.clone())),
-			FetchState::Done(ref id, ref endpoint, ref handler) => self.notify(|| FetchState::Done(id.clone(), endpoint.clone(), handler.clone())),
+			FetchState::Done(ref endpoint, _) => self.notify(|| WaitResult::Done(endpoint.clone())),
-			FetchState::NotStarted(_) | FetchState::InProgress(_) => {},
+			FetchState::NotStarted(_) | FetchState::InProgress(_) | FetchState::Waiting => {},
 		}
 	}
 
@@ -88,44 +95,66 @@ impl FetchControl {
 		self.abort.store(true, Ordering::SeqCst);
 	}
 
-	pub fn to_handler(&self, control: Control) -> Box<server::Handler<HttpStream> + Send> {
+	pub fn to_async_handler(&self, path: EndpointPath, control: Control) -> Box<server::Handler<HttpStream> + Send> {
 		let (tx, rx) = mpsc::channel();
 		self.listeners.lock().push((control, tx));
 
 		Box::new(WaitingHandler {
 			receiver: rx,
-			state: None,
+			state: FetchState::Waiting,
+			uri: RequestUri::default(),
+			path: path,
 		})
 	}
 }
 
 pub struct WaitingHandler {
-	receiver: mpsc::Receiver<FetchState>,
+	receiver: mpsc::Receiver<WaitResult>,
-	state: Option<FetchState>,
+	state: FetchState,
+	uri: RequestUri,
+	path: EndpointPath,
 }
 
 impl server::Handler<HttpStream> for WaitingHandler {
-	fn on_request(&mut self, _request: server::Request<HttpStream>) -> Next {
+	fn on_request(&mut self, request: server::Request<HttpStream>) -> Next {
+		self.uri = request.uri().clone();
 		Next::wait()
 	}
 
-	fn on_request_readable(&mut self, _decoder: &mut Decoder<HttpStream>) -> Next {
+	fn on_request_readable(&mut self, decoder: &mut Decoder<HttpStream>) -> Next {
-		self.state = self.receiver.try_recv().ok();
+		let result = self.receiver.try_recv().ok();
-		Next::write()
+		self.state = match result {
+			Some(WaitResult::Error(handler)) => FetchState::Error(handler),
+			Some(WaitResult::Done(endpoint)) => {
+				let mut page_handler = endpoint.to_page_handler(self.path.clone());
+				page_handler.set_uri(&self.uri);
+				FetchState::Done(endpoint, page_handler)
+			},
+			None => {
+				warn!("A result for waiting request was not received.");
+				FetchState::Waiting
+			},
+		};
+
+		match self.state {
+			FetchState::Done(_, ref mut handler) => handler.on_request_readable(decoder),
+			FetchState::Error(ref mut handler) => handler.on_request_readable(decoder),
+			_ => Next::write(),
+		}
 	}
 
 	fn on_response(&mut self, res: &mut server::Response) -> Next {
 		match self.state {
-			Some(FetchState::Done(_, _, ref mut handler)) => handler.on_response(res),
+			FetchState::Done(_, ref mut handler) => handler.on_response(res),
-			Some(FetchState::Error(ref mut handler)) => handler.on_response(res),
+			FetchState::Error(ref mut handler) => handler.on_response(res),
 			_ => Next::end(),
 		}
 	}
 
 	fn on_response_writable(&mut self, encoder: &mut Encoder<HttpStream>) -> Next {
 		match self.state {
-			Some(FetchState::Done(_, _, ref mut handler)) => handler.on_response_writable(encoder),
+			FetchState::Done(_, ref mut handler) => handler.on_response_writable(encoder),
-			Some(FetchState::Error(ref mut handler)) => handler.on_response_writable(encoder),
+			FetchState::Error(ref mut handler) => handler.on_response_writable(encoder),
 			_ => Next::end(),
 		}
 	}
@@ -137,29 +166,19 @@ pub struct ContentFetcherHandler<H: ContentValidator> {
 	status: FetchState,
 	client: Option<Client>,
 	installer: H,
-	request_url: Option<Url>,
+	path: EndpointPath,
+	uri: RequestUri,
 	embeddable_on: Option<(String, u16)>,
 }
 
-impl<H: ContentValidator> Drop for ContentFetcherHandler<H> {
-	fn drop(&mut self) {
-		let result = match self.status {
-			FetchState::Done(_, ref result, _) => Some(result.clone()),
-			_ => None,
-		};
-		self.installer.done(result);
-	}
-}
-
 impl<H: ContentValidator> ContentFetcherHandler<H> {
-
 	pub fn new(
 		url: String,
+		path: EndpointPath,
 		control: Control,
 		handler: H,
 		embeddable_on: Option<(String, u16)>,
 	) -> (Self, Arc<FetchControl>) {
-
 		let fetch_control = Arc::new(FetchControl::default());
 		let client = Client::default();
 		let handler = ContentFetcherHandler {
@@ -168,7 +187,8 @@ impl<H: ContentValidator> ContentFetcherHandler<H> {
 			client: Some(client),
 			status: FetchState::NotStarted(url),
 			installer: handler,
-			request_url: None,
+			path: path,
+			uri: RequestUri::default(),
 			embeddable_on: embeddable_on,
 		};
 
@@ -192,7 +212,6 @@ impl<H: ContentValidator> ContentFetcherHandler<H> {
 
 impl<H: ContentValidator> server::Handler<HttpStream> for ContentFetcherHandler<H> {
 	fn on_request(&mut self, request: server::Request<HttpStream>) -> Next {
-		self.request_url = extract_url(&request);
 		let status = if let FetchState::NotStarted(ref url) = self.status {
 			Some(match *request.method() {
 				// Start fetching content
@@ -205,8 +224,8 @@ impl<H: ContentValidator> server::Handler<HttpStream> for ContentFetcherHandler<
 						Ok(receiver) => FetchState::InProgress(receiver),
 						Err(e) => FetchState::Error(ContentHandler::error(
 							StatusCode::BadGateway,
-							"Unable To Start Dapp Download",
+							"Unable To Start Content Download",
-							"Could not initialize download of the dapp. It might be a problem with the remote server.",
+							"Could not initialize download of the content. It might be a problem with the remote server.",
 							Some(&format!("{}", e)),
 							self.embeddable_on.clone(),
 						)),
@@ -227,6 +246,7 @@ impl<H: ContentValidator> server::Handler<HttpStream> for ContentFetcherHandler<
 			self.fetch_control.set_status(&status);
 			self.status = status;
 		}
+		self.uri = request.uri().clone();
 
 		Next::read()
 	}
@@ -266,11 +286,10 @@ impl<H: ContentValidator> server::Handler<HttpStream> for ContentFetcherHandler<
 									self.embeddable_on.clone(),
 								))
 							},
-							Ok((id, result)) => {
+							Ok(endpoint) => {
-								let url: String = self.request_url.take()
+								let mut handler = endpoint.to_page_handler(self.path.clone());
-									.map(|url| url.raw.into_string())
+								handler.set_uri(&self.uri);
-									.expect("Request URL always read in on_request; qed");
+								FetchState::Done(endpoint, handler)
-								FetchState::Done(id, result, Redirection::new(&url))
 							},
 						};
 						// Remove temporary zip file
@@ -306,7 +325,7 @@ impl<H: ContentValidator> server::Handler<HttpStream> for ContentFetcherHandler<
 
 	fn on_response(&mut self, res: &mut server::Response) -> Next {
 		match self.status {
-			FetchState::Done(_, _, ref mut handler) => handler.on_response(res),
+			FetchState::Done(_, ref mut handler) => handler.on_response(res),
 			FetchState::Error(ref mut handler) => handler.on_response(res),
 			_ => Next::end(),
 		}
@@ -314,7 +333,7 @@ impl<H: ContentValidator> server::Handler<HttpStream> for ContentFetcherHandler<
 
 	fn on_response_writable(&mut self, encoder: &mut Encoder<HttpStream>) -> Next {
 		match self.status {
-			FetchState::Done(_, _, ref mut handler) => handler.on_response_writable(encoder),
+			FetchState::Done(_, ref mut handler) => handler.on_response_writable(encoder),
 			FetchState::Error(ref mut handler) => handler.on_response_writable(encoder),
 			_ => Next::end(),
 		}

dapps/src/lib.rs

@@ -57,7 +57,7 @@ extern crate mime_guess;
 extern crate rustc_serialize;
 extern crate ethcore_rpc;
 extern crate ethcore_util as util;
-extern crate ethcore_hash_fetch as hash_fetch;
+extern crate parity_hash_fetch as hash_fetch;
 extern crate linked_hash_map;
 extern crate fetch;
 extern crate parity_dapps_glue as parity_dapps;

dapps/src/page/handler.rs

@@ -83,13 +83,19 @@ impl Default for PageCache {
 	}
 }
 
+/// A generic type for `PageHandler` allowing to set the URL.
+/// Used by dapps fetching to set the URL after the content was downloaded.
+pub trait PageHandlerWaiting: server::Handler<HttpStream> + Send {
+	fn set_uri(&mut self, uri: &RequestUri);
+}
+
 /// A handler for a single webapp.
 /// Resolves correct paths and serves as a plumbing code between
 /// hyper server and dapp.
 pub struct PageHandler<T: Dapp> {
 	/// A Dapp.
 	pub app: T,
-	/// File currently being served (or `None` if file does not exist).
+	/// File currently being served
 	pub file: ServedFile<T>,
 	/// Optional prefix to strip from path.
 	pub prefix: Option<String>,
@@ -101,6 +107,21 @@ pub struct PageHandler<T: Dapp> {
 	pub cache: PageCache,
 }
 
+impl<T: Dapp> PageHandlerWaiting for PageHandler<T> {
+	fn set_uri(&mut self, uri: &RequestUri) {
+		trace!(target: "dapps", "Setting URI: {:?}", uri);
+		self.file = match *uri {
+			RequestUri::AbsolutePath { ref path, .. } => {
+				self.app.file(&self.extract_path(path))
+			},
+			RequestUri::AbsoluteUri(ref url) => {
+				self.app.file(&self.extract_path(url.path()))
+			},
+			_ => None,
+		}.map_or_else(|| ServedFile::new(self.safe_to_embed_on.clone()), |f| ServedFile::File(f));
+	}
+}
+
 impl<T: Dapp> PageHandler<T> {
 	fn extract_path(&self, path: &str) -> String {
 		let app_id = &self.path.app_id;
@@ -124,15 +145,7 @@ 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() {
+		self.set_uri(req.uri());
-			RequestUri::AbsolutePath { ref path, .. } => {
-				self.app.file(&self.extract_path(path))
-			},
-			RequestUri::AbsoluteUri(ref url) => {
-				self.app.file(&self.extract_path(url.path()))
-			},
-			_ => None,
-		}.map_or_else(|| ServedFile::new(self.safe_to_embed_on.clone()), |f| ServedFile::File(f));
 		Next::write()
 	}
 

dapps/src/page/local.rs

@@ -18,7 +18,7 @@ use mime_guess;
 use std::io::{Seek, Read, SeekFrom};
 use std::fs;
 use std::path::{Path, PathBuf};
-use page::handler::{self, PageCache};
+use page::handler::{self, PageCache, PageHandlerWaiting};
 use endpoint::{Endpoint, EndpointInfo, EndpointPath, Handler};
 
 #[derive(Debug, Clone)]
@@ -54,6 +54,36 @@ impl LocalPageEndpoint {
 	pub fn path(&self) -> PathBuf {
 		self.path.clone()
 	}
+
+	fn page_handler_with_mime(&self, path: EndpointPath, mime: &str) -> handler::PageHandler<LocalSingleFile> {
+		handler::PageHandler {
+			app: LocalSingleFile { path: self.path.clone(), mime: mime.into() },
+			prefix: None,
+			path: path,
+			file: handler::ServedFile::new(None),
+			safe_to_embed_on: self.embeddable_on.clone(),
+			cache: self.cache,
+		}
+	}
+
+	fn page_handler(&self, path: EndpointPath) -> handler::PageHandler<LocalDapp> {
+		handler::PageHandler {
+			app: LocalDapp { path: self.path.clone() },
+			prefix: None,
+			path: path,
+			file: handler::ServedFile::new(None),
+			safe_to_embed_on: self.embeddable_on.clone(),
+			cache: self.cache,
+		}
+	}
+
+	pub fn to_page_handler(&self, path: EndpointPath) -> Box<PageHandlerWaiting> {
+		if let Some(ref mime) = self.mime {
+			Box::new(self.page_handler_with_mime(path, mime))
+		} else {
+			Box::new(self.page_handler(path))
+		}
+	}
 }
 
 impl Endpoint for LocalPageEndpoint {
@@ -63,23 +93,9 @@ impl Endpoint for LocalPageEndpoint {
 
 	fn to_handler(&self, path: EndpointPath) -> Box<Handler> {
 		if let Some(ref mime) = self.mime {
-			Box::new(handler::PageHandler {
+			Box::new(self.page_handler_with_mime(path, mime))
-				app: LocalSingleFile { path: self.path.clone(), mime: mime.clone() },
-				prefix: None,
-				path: path,
-				file: handler::ServedFile::new(None),
-				safe_to_embed_on: self.embeddable_on.clone(),
-				cache: self.cache,
-			})
 		} else {
-			Box::new(handler::PageHandler {
+			Box::new(self.page_handler(path))
-				app: LocalDapp { path: self.path.clone() },
-				prefix: None,
-				path: path,
-				file: handler::ServedFile::new(None),
-				safe_to_embed_on: self.embeddable_on.clone(),
-				cache: self.cache,
-			})
 		}
 	}
 }

dapps/src/page/mod.rs

@@ -21,5 +21,5 @@ mod handler;
 
 pub use self::local::LocalPageEndpoint;
 pub use self::builtin::PageEndpoint;
-pub use self::handler::PageCache;
+pub use self::handler::{PageCache, PageHandlerWaiting};
 

dapps/src/tests/helpers.rs

@@ -65,7 +65,7 @@ fn init_logger() {
 	if let Ok(log) = env::var("RUST_LOG") {
 		let mut builder = LogBuilder::new();
 		builder.parse(&log);
-		builder.init().expect("Logger is initialized only once.");
+		let _ = builder.init();	// ignore errors since ./test.sh will call this multiple times.
 	}
 }
 

db/Cargo.toml

@@ -15,7 +15,7 @@ clippy = { version = "0.0.103", optional = true}
 ethcore-devtools = { path = "../devtools" }
 ethcore-ipc = { path = "../ipc/rpc" }
 rocksdb = { git = "https://github.com/ethcore/rust-rocksdb" }
-semver = "0.2"
+semver = "0.5"
 ethcore-ipc-nano = { path = "../ipc/nano" }
 nanomsg = { git = "https://github.com/ethcore/nanomsg.rs.git" }
 crossbeam = "0.2"

db/src/database.rs

@@ -270,8 +270,7 @@ impl DatabaseService for Database {
 		Ok(next_iterator)
 	}
 
-	fn iter_next(&self, handle: IteratorHandle) -> Option<KeyValue>
+	fn iter_next(&self, handle: IteratorHandle) -> Option<KeyValue> {
-	{
 		let mut iterators = self.iterators.write();
 		let mut iterator = match iterators.get_mut(&handle) {
 			Some(some_iterator) => some_iterator,

ethcore/Cargo.toml

@@ -21,7 +21,7 @@ crossbeam = "0.2.9"
 lazy_static = "0.2"
 bloomchain = "0.1"
 rayon = "0.4.2"
-semver = "0.2"
+semver = "0.5"
 bit-set = "0.4"
 time = "0.1"
 rand = "0.3"
@@ -42,6 +42,7 @@ ethcore-ipc-nano = { path = "../ipc/nano" }
 rlp = { path = "../util/rlp" }
 lru-cache = "0.1.0"
 ethcore-bloom-journal = { path = "../util/bloom" }
+ethabi = "0.2.2"
 
 [dependencies.hyper]
 git = "https://github.com/ethcore/hyper"

ethcore/res/ethereum/ropsten.json

@@ -15,7 +15,8 @@
 				"eip155Transition": 10,
 				"eip160Transition": 10,
 				"eip161abcTransition": 10,
-				"eip161dTransition": 10
+				"eip161dTransition": 10,
+				"maxCodeSize": 24576
 			}
 		}
 	},

ethcore/res/ethereum/tests

@@ -1 +1 @@
-Subproject commit e8f4624b7f1a15c63674eecf577c7ab76c3b16be
+Subproject commit 9028c4801fd39fbb71a9796979182549a24e81c8

ethcore/src/client/client.rs

@@ -13,7 +13,9 @@
 
 // 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::collections::{HashSet, HashMap, BTreeMap, VecDeque};
+use std::str::FromStr;
 use std::sync::{Arc, Weak};
 use std::path::{Path};
 use std::fmt;
@@ -22,7 +24,7 @@ use std::time::{Instant};
 use time::precise_time_ns;
 
 // util
-use util::{Bytes, PerfTimer, Itertools, Mutex, RwLock, Hashable};
+use util::{Bytes, PerfTimer, Itertools, Mutex, RwLock, MutexGuard, Hashable};
 use util::{journaldb, TrieFactory, Trie};
 use util::{U256, H256, Address, H2048, Uint, FixedHash};
 use util::trie::TrieSpec;
@@ -42,7 +44,7 @@ use env_info::LastHashes;
 use verification;
 use verification::{PreverifiedBlock, Verifier};
 use block::*;
-use transaction::{LocalizedTransaction, SignedTransaction, PendingTransaction, Action};
+use transaction::{LocalizedTransaction, SignedTransaction, Transaction, PendingTransaction, Action};
 use blockchain::extras::TransactionAddress;
 use types::filter::Filter;
 use types::mode::Mode as IpcMode;
@@ -68,6 +70,7 @@ use factory::Factories;
 use rlp::{decode, View, UntrustedRlp};
 use state_db::StateDB;
 use rand::OsRng;
+use client::registry::Registry;
 
 // re-export
 pub use types::blockchain_info::BlockChainInfo;
@@ -124,6 +127,7 @@ impl SleepState {
 /// Blockchain database client backed by a persistent database. Owns and manages a blockchain and a block queue.
 /// Call `import_block()` to import a block asynchronously; `flush_queue()` flushes the queue.
 pub struct Client {
+	enabled: AtomicBool,
 	mode: Mutex<Mode>,
 	chain: RwLock<Arc<BlockChain>>,
 	tracedb: RwLock<TraceDB<BlockChain>>,
@@ -148,6 +152,7 @@ pub struct Client {
 	history: u64,
 	rng: Mutex<OsRng>,
 	on_mode_change: Mutex<Option<Box<FnMut(&Mode) + 'static + Send>>>,
+	registrar: Mutex<Option<Registry>>,
 }
 
 impl Client {
@@ -160,6 +165,7 @@ impl Client {
 		message_channel: IoChannel<ClientIoMessage>,
 		db_config: &DatabaseConfig,
 	) -> Result<Arc<Client>, ClientError> {
+
 		let path = path.to_path_buf();
 		let gb = spec.genesis_block();
 
@@ -221,7 +227,8 @@ impl Client {
 			accountdb: Default::default(),
 		};
 
-		let client = Client {
+		let client = Arc::new(Client {
+			enabled: AtomicBool::new(true),
 			sleep_state: Mutex::new(SleepState::new(awake)),
 			liveness: AtomicBool::new(awake),
 			mode: Mutex::new(config.mode.clone()),
@@ -246,8 +253,15 @@ impl Client {
 			history: history,
 			rng: Mutex::new(try!(OsRng::new().map_err(::util::UtilError::StdIo))),
 			on_mode_change: Mutex::new(None),
-		};
+			registrar: Mutex::new(None),
-		Ok(Arc::new(client))
+		});
+		if let Some(reg_addr) = client.additional_params().get("registrar").and_then(|s| Address::from_str(s).ok()) {
+			trace!(target: "client", "Found registrar at {}", reg_addr);
+			let weak = Arc::downgrade(&client);
+			let registrar = Registry::new(reg_addr, move |a, d| weak.upgrade().ok_or("No client!".into()).and_then(|c| c.call_contract(a, d)));
+			*client.registrar.lock() = Some(registrar);
+		}
+		Ok(client)
 	}
 
 	/// Adds an actor to be notified on certain events
@@ -268,6 +282,11 @@ impl Client {
 		}
 	}
 
+	/// Get the Registry object - useful for looking up names.
+	pub fn registrar(&self) -> MutexGuard<Option<Registry>> {
+		self.registrar.lock()
+	}
+
 	/// Register an action to be done if a mode change happens.
 	pub fn on_mode_change<F>(&self, f: F) where F: 'static + FnMut(&Mode) + Send {
 		*self.on_mode_change.lock() = Some(Box::new(f));
@@ -395,6 +414,12 @@ impl Client {
 
 	/// This is triggered by a message coming from a block queue when the block is ready for insertion
 	pub fn import_verified_blocks(&self) -> usize {
+
+		// Shortcut out if we know we're incapable of syncing the chain.
+		if !self.enabled.load(AtomicOrdering::Relaxed) {
+			return 0;
+		}
+
 		let max_blocks_to_import = 4;
 		let (imported_blocks, import_results, invalid_blocks, imported, proposed_blocks, duration, is_empty) = {
 			let mut imported_blocks = Vec::with_capacity(max_blocks_to_import);
@@ -663,10 +688,17 @@ impl Client {
 	/// Tick the client.
 	// TODO: manage by real events.
 	pub fn tick(&self) {
+		self.check_garbage();
+		self.check_snooze();
+	}
+
+	fn check_garbage(&self) {
 		self.chain.read().collect_garbage();
 		self.block_queue.collect_garbage();
 		self.tracedb.read().collect_garbage();
+	}
 
+	fn check_snooze(&self) {
 		let mode = self.mode.lock().clone();
 		match mode {
 			Mode::Dark(timeout) => {
@@ -700,16 +732,6 @@ impl Client {
 		}
 	}
 
-	/// Look up the block number for the given block ID.
-	pub fn block_number(&self, id: BlockId) -> Option<BlockNumber> {
-		match id {
-			BlockId::Number(number) => Some(number),
-			BlockId::Hash(ref hash) => self.chain.read().block_number(hash),
-			BlockId::Earliest => Some(0),
-			BlockId::Latest | BlockId::Pending => Some(self.chain.read().best_block_number()),
-		}
-	}
-
 	/// Take a snapshot at the given block.
 	/// If the ID given is "latest", this will default to 1000 blocks behind.
 	pub fn take_snapshot<W: snapshot_io::SnapshotWriter + Send>(&self, writer: W, at: BlockId, p: &snapshot::Progress) -> Result<(), EthcoreError> {
@@ -908,8 +930,17 @@ impl BlockChainClient for Client {
 		r
 	}
 
+	fn disable(&self) {
+		self.set_mode(IpcMode::Off);
+		self.enabled.store(false, AtomicOrdering::Relaxed);
+		self.clear_queue();
+	}
+
 	fn set_mode(&self, new_mode: IpcMode) {
 		trace!(target: "mode", "Client::set_mode({:?})", new_mode);
+		if !self.enabled.load(AtomicOrdering::Relaxed) {
+			return;
+		}
 		{
 			let mut mode = self.mode.lock();
 			*mode = new_mode.clone().into();
@@ -935,6 +966,15 @@ impl BlockChainClient for Client {
 		Self::block_hash(&chain, id).and_then(|hash| chain.block_header_data(&hash))
 	}
 
+	fn block_number(&self, id: BlockId) -> Option<BlockNumber> {
+		match id {
+			BlockId::Number(number) => Some(number),
+			BlockId::Hash(ref hash) => self.chain.read().block_number(hash),
+			BlockId::Earliest => Some(0),
+			BlockId::Latest | BlockId::Pending => Some(self.chain.read().best_block_number()),
+		}
+	}
+
 	fn block_body(&self, id: BlockId) -> Option<Bytes> {
 		let chain = self.chain.read();
 		Self::block_hash(&chain, id).and_then(|hash| chain.block_body(&hash))
@@ -1331,6 +1371,34 @@ impl BlockChainClient for Client {
 			earliest_state: self.state_db.lock().journal_db().earliest_era().unwrap_or(0),
 		}
 	}
+
+	fn call_contract(&self, address: Address, data: Bytes) -> Result<Bytes, String> {
+		let from = Address::default();
+		let transaction = Transaction {
+			nonce: self.latest_nonce(&from),
+			action: Action::Call(address),
+			gas: U256::from(50_000_000),
+			gas_price: U256::default(),
+			value: U256::default(),
+			data: data,
+		}.fake_sign(from);
+
+		self.call(&transaction, BlockId::Latest, Default::default())
+			.map_err(|e| format!("{:?}", e))
+			.map(|executed| {
+				executed.output
+			})
+	}
+
+	fn registrar_address(&self) -> Option<Address> {
+		self.registrar.lock().as_ref().map(|r| r.address.clone())
+	}
+
+	fn registry_address(&self, name: String) -> Option<Address> {
+		self.registrar.lock().as_ref()
+			.and_then(|r| r.get_address(&(name.as_bytes().sha3()), "A").ok())
+			.and_then(|a| if a.is_zero() { None } else { Some(a) })
+	}
 }
 
 impl MiningBlockChainClient for Client {

ethcore/src/client/error.rs

@@ -1,3 +1,19 @@
+// Copyright 2015, 2016 Parity Technologies (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/>.
+
 use trace::Error as TraceError;
 use util::UtilError;
 use std::fmt::{Display, Formatter, Error as FmtError};

ethcore/src/client/mod.rs

@@ -16,6 +16,7 @@
 
 //! Blockchain database client.
 
+mod registry;
 mod config;
 mod error;
 mod test_client;

ethcore/src/client/test_client.rs

@@ -488,6 +488,10 @@ impl BlockChainClient for TestBlockChainClient {
 		self.block_hash(id).and_then(|hash| self.blocks.read().get(&hash).map(|r| Rlp::new(r).at(0).as_raw().to_vec()))
 	}
 
+	fn block_number(&self, _id: BlockId) -> Option<BlockNumber> {
+		unimplemented!()
+	}
+
 	fn block_body(&self, id: BlockId) -> Option<Bytes> {
 		self.block_hash(id).and_then(|hash| self.blocks.read().get(&hash).map(|r| {
 			let mut stream = RlpStream::new_list(2);
@@ -694,10 +698,18 @@ impl BlockChainClient for TestBlockChainClient {
 
 	fn set_mode(&self, _: Mode) { unimplemented!(); }
 
+	fn disable(&self) { unimplemented!(); }
+
 	fn pruning_info(&self) -> PruningInfo {
 		PruningInfo {
 			earliest_chain: 1,
 			earliest_state: 1,
 		}
 	}
+
+	fn call_contract(&self, _address: Address, _data: Bytes) -> Result<Bytes, String> { Ok(vec![]) }
+
+	fn registrar_address(&self) -> Option<Address> { None }
+
+	fn registry_address(&self, _name: String) -> Option<Address> { None }
 }

ethcore/src/client/traits.rs

@@ -52,6 +52,9 @@ pub trait BlockChainClient : Sync + Send {
 	/// Get raw block header data by block id.
 	fn block_header(&self, id: BlockId) -> Option<Bytes>;
 
+	/// Look up the block number for the given block ID.
+	fn block_number(&self, id: BlockId) -> Option<BlockNumber>;
+
 	/// Get raw block body data by block id.
 	/// Block body is an RLP list of two items: uncles and transactions.
 	fn block_body(&self, id: BlockId) -> Option<Bytes>;
@@ -255,6 +258,10 @@ pub trait BlockChainClient : Sync + Send {
 	/// Set the mode.
 	fn set_mode(&self, mode: Mode);
 
+	/// Disable the client from importing blocks. This cannot be undone in this session and indicates
+	/// that a subsystem has reason to believe this executable incapable of syncing the chain.
+	fn disable(&self);
+
 	/// Returns engine-related extra info for `BlockId`.
 	fn block_extra_info(&self, id: BlockId) -> Option<BTreeMap<String, String>>;
 
@@ -263,6 +270,15 @@ pub trait BlockChainClient : Sync + Send {
 
 	/// Returns information about pruning/data availability.
 	fn pruning_info(&self) -> PruningInfo;
+
+	/// Like `call`, but with various defaults. Designed to be used for calling contracts.
+	fn call_contract(&self, address: Address, data: Bytes) -> Result<Bytes, String>;
+
+	/// Get the address of the registry itself.
+	fn registrar_address(&self) -> Option<Address>;
+
+	/// Get the address of a particular blockchain service, if available. 
+	fn registry_address(&self, name: String) -> Option<Address>;
 }
 
 impl IpcConfig for BlockChainClient { }

ethcore/src/engines/authority_round.rs

@@ -100,6 +100,7 @@ impl AsMillis for Duration {
 impl AuthorityRound {
 	/// Create a new instance of AuthorityRound engine.
 	pub fn new(params: CommonParams, our_params: AuthorityRoundParams, builtins: BTreeMap<Address, Builtin>) -> Result<Arc<Self>, Error> {
+		let should_timeout = our_params.start_step.is_none();
 		let initial_step = our_params.start_step.unwrap_or_else(|| (unix_now().as_secs() / our_params.step_duration.as_secs())) as usize;
 		let engine = Arc::new(
 			AuthorityRound {
@@ -113,18 +114,17 @@ impl AuthorityRound {
 				account_provider: Mutex::new(None),
 				password: RwLock::new(None),
 			});
-		let handler = TransitionHandler { engine: Arc::downgrade(&engine) };
+		// Do not initialize timeouts for tests.
-		try!(engine.transition_service.register_handler(Arc::new(handler)));
+		if should_timeout {
+			let handler = TransitionHandler { engine: Arc::downgrade(&engine) };
+			try!(engine.transition_service.register_handler(Arc::new(handler)));
+		}
 		Ok(engine)
 	}
 
-	fn step(&self) -> usize {
-		self.step.load(AtomicOrdering::SeqCst)
-	}
-
 	fn remaining_step_duration(&self) -> Duration {
 		let now = unix_now();
-		let step_end = self.our_params.step_duration * (self.step() as u32 + 1);
+		let step_end = self.our_params.step_duration * (self.step.load(AtomicOrdering::SeqCst) as u32 + 1);
 		if step_end > now {
 			step_end - now
 		} else {
@@ -228,7 +228,7 @@ impl Engine for AuthorityRound {
 	fn generate_seal(&self, block: &ExecutedBlock) -> Seal {
 		if self.proposed.load(AtomicOrdering::SeqCst) { return Seal::None; }
 		let header = block.header();
-		let step = self.step();
+		let step = self.step.load(AtomicOrdering::SeqCst);
 		if self.is_step_proposer(step, header.author()) {
 			if let Some(ref ap) = *self.account_provider.lock() {
 				// Account should be permanently unlocked, otherwise sealing will fail.
@@ -265,7 +265,7 @@ impl Engine for AuthorityRound {
 	fn verify_block_unordered(&self, header: &Header, _block: Option<&[u8]>) -> Result<(), Error> {
 		let header_step = try!(header_step(header));
 		// Give one step slack if step is lagging, double vote is still not possible.
-		if header_step <= self.step() + 1 {
+		if header_step <= self.step.load(AtomicOrdering::SeqCst) + 1 {
 			let proposer_signature = try!(header_signature(header));
 			let ok_sig = try!(verify_address(self.step_proposer(header_step), &proposer_signature, &header.bare_hash()));
 			if ok_sig {

ethcore/src/ethereum/mod.rs

@@ -29,6 +29,12 @@ pub use self::denominations::*;
 
 use super::spec::*;
 
+/// Most recent fork block that we support on Mainnet.
+pub const FORK_SUPPORTED_FRONTIER: u64 = 2675000;
+
+/// Most recent fork block that we support on Ropsten.
+pub const FORK_SUPPORTED_ROPSTEN: u64 = 10;
+
 fn load(b: &[u8]) -> Spec {
 	Spec::load(b).expect("chain spec is invalid")
 }

ethcore/src/lib.rs

@@ -118,6 +118,7 @@ extern crate lru_cache;
 
 #[cfg(feature = "jit" )]
 extern crate evmjit;
+extern crate ethabi;
 
 pub extern crate ethstore;
 

ethcore/src/types/blockchain_info.rs

@@ -18,6 +18,7 @@
 
 use util::{U256, H256};
 use header::BlockNumber;
+use types::security_level::SecurityLevel;
 
 /// Information about the blockchain gathered together.
 #[derive(Clone, Debug, Binary)]
@@ -41,3 +42,15 @@ pub struct BlockChainInfo {
 	/// Number of the first block on the best sequence.
 	pub first_block_number: Option<BlockNumber>,
 }
+
+impl BlockChainInfo {
+	/// Determine the security model for the current state.
+	pub fn security_level(&self) -> SecurityLevel {
+		// TODO: Detect SecurityLevel::FullState : https://github.com/ethcore/parity/issues/3834
+		if self.ancient_block_number.is_none() || self.first_block_number.is_none() {
+			SecurityLevel::FullProofOfWork
+		} else {
+			SecurityLevel::PartialProofOfWork(self.best_block_number - self.first_block_number.expect("Guard condition means this is not none"))
+		}
+	}
+}

ethcore/src/types/mod.rs.in

@@ -35,3 +35,4 @@ pub mod restoration_status;
 pub mod snapshot_manifest;
 pub mod mode;
 pub mod pruning_info;
+pub mod security_level;

ethcore/src/types/security_level.rs

@@ -0,0 +1,40 @@
+// Copyright 2015, 2016 Parity Technologies (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/>.
+
+//! Indication of how secure the chain is.
+
+use header::BlockNumber;
+
+/// Indication of how secure the chain is.
+#[derive(Debug, PartialEq, Copy, Clone, Hash, Eq, Binary)]
+pub enum SecurityLevel {
+	/// All blocks from genesis to chain head are known to have valid state transitions and PoW.
+	FullState,
+	/// All blocks from genesis to chain head are known to have a valid PoW.
+	FullProofOfWork,
+	/// Some recent headers (the argument) are known to have a valid PoW.
+	PartialProofOfWork(BlockNumber),
+}
+
+impl SecurityLevel {
+	/// `true` for `FullPoW`/`FullState`.
+	pub fn is_full(&self) -> bool {
+		match *self {
+			SecurityLevel::FullState | SecurityLevel::FullProofOfWork => true,
+			_ => false,
+		} 
+	}
+}

hash-fetch/Cargo.toml

@@ -2,7 +2,7 @@
 description = "Fetching hash-addressed content."
 homepage = "http://parity.io"
 license = "GPL-3.0"
-name = "ethcore-hash-fetch"
+name = "parity-hash-fetch"
 version = "1.5.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 
@@ -11,5 +11,5 @@ log = "0.3"
 rustc-serialize = "0.3"
 ethabi = "0.2.2"
 mime_guess = "1.6.1"
-fetch = { path = "../../util/fetch" }
+fetch = { path = "../util/fetch" }
-ethcore-util = { path = "../../util" }
+ethcore-util = { path = "../util" }

hash-fetch/src/client.rs

@@ -26,7 +26,7 @@ use fetch::{Fetch, FetchError, Client as FetchClient};
 use urlhint::{ContractClient, URLHintContract, URLHint, URLHintResult};
 
 /// API for fetching by hash.
-pub trait HashFetch {
+pub trait HashFetch: Send + Sync + 'static {
 	/// Fetch hash-addressed content.
 	/// Parameters:
 	/// 1. `hash` - content hash
@@ -42,7 +42,12 @@ pub enum Error {
 	/// Hash could not be resolved to a valid content address.
 	NoResolution,
 	/// Downloaded content hash does not match.
-	HashMismatch { expected: H256, got: H256 },
+	HashMismatch {
+		/// Expected hash
+		expected: H256,
+		/// Computed hash
+		got: H256,
+	},
 	/// IO Error while validating hash.
 	IO(io::Error),
 	/// Error during fetch.
@@ -79,7 +84,7 @@ impl Client {
 
 impl HashFetch for Client {
 	fn fetch(&self, hash: H256, on_done: Box<Fn(Result<PathBuf, Error>) + Send>) -> Result<(), Error> {
-		debug!(target: "dapps", "Fetching: {:?}", hash);
+		debug!(target: "fetch", "Fetching: {:?}", hash);
 
 		let url = try!(
 			self.contract.resolve(hash.to_vec()).map(|content| match content {
@@ -92,7 +97,7 @@ impl HashFetch for Client {
 			}).ok_or_else(|| Error::NoResolution)
 		);
 
-		debug!(target: "dapps", "Resolved {:?} to {:?}. Fetching...", hash, url);
+		debug!(target: "fetch", "Resolved {:?} to {:?}. Fetching...", hash, url);
 
 		self.fetch.lock().request_async(&url, Default::default(), Box::new(move |result| {
 			fn validate_hash(hash: H256, result: Result<PathBuf, FetchError>) -> Result<PathBuf, Error> {
@@ -107,7 +112,7 @@ impl HashFetch for Client {
 				}
 			}
 
-			debug!(target: "dapps", "Content fetched, validating hash ({:?})", hash);
+			debug!(target: "fetch", "Content fetched, validating hash ({:?})", hash);
 			on_done(validate_hash(hash, result))
 		})).map_err(Into::into)
 	}

hash-fetch/src/lib.rs

@@ -30,4 +30,4 @@ mod client;
 
 pub mod urlhint;
 
-pub use client::{HashFetch, Client};
+pub use client::{HashFetch, Client, Error};

ipc-common-types/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+description = "Types that implement IPC and are common to multiple modules."
+name = "ipc-common-types"
+version = "1.5.0"
+license = "GPL-3.0"
+authors = ["Parity Technologies <admin@parity.io>"]
+build = "build.rs"
+
+[build-dependencies]
+ethcore-ipc-codegen = { path = "../ipc/codegen" }
+
+[dependencies]
+log = "0.3"
+semver = "0.5"
+ethcore-ipc = { path = "../ipc/rpc" }
+ethcore-util = { path = "../util" }
+
+[profile.release]
+debug = true
+lto = false

ipc-common-types/build.rs

@@ -0,0 +1,21 @@
+// Copyright 2015, 2016 Parity Technologies (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();
+}

ipc-common-types/src/lib.rs

@@ -0,0 +1,26 @@
+// Copyright 2015, 2016 Parity Technologies (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/>.
+
+//! Updater for Parity executables
+
+#[macro_use] extern crate log;
+extern crate semver;
+extern crate ethcore_util as util;
+extern crate ethcore_ipc as ipc;
+
+mod types;
+
+pub use types::*;

ipc-common-types/src/types/mod.rs

@@ -0,0 +1,21 @@
+// Copyright 2015, 2016 Parity Technologies (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/>.
+
+//! Types used in the public api
+
+#![allow(dead_code, unused_assignments, unused_variables)] // codegen issues
+include!(concat!(env!("OUT_DIR"), "/mod.rs.in"));
+

ipc-common-types/src/types/mod.rs.in

@@ -0,0 +1,21 @@
+// Copyright 2015, 2016 Parity Technologies (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 release_track;
+pub mod version_info;
+
+pub use release_track::{ReleaseTrack};
+pub use version_info::{VersionInfo};

ipc-common-types/src/types/release_track.rs

@@ -0,0 +1,82 @@
+// Copyright 2015, 2016 Parity Technologies (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/>.
+
+//! Types used in the public API
+
+use std::fmt;
+
+/// A release's track.
+#[derive(PartialEq, Eq, Clone, Copy, Debug, Binary)]
+pub enum ReleaseTrack {
+	/// Stable track.
+	Stable,
+	/// Beta track.
+	Beta,
+	/// Nightly track.
+	Nightly,
+	/// Testing track.
+	Testing,
+	/// No known track, also "current executable's track" when it's not yet known.
+	Unknown,
+}
+
+impl fmt::Display for ReleaseTrack {
+	fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
+		write!(f, "{}", match *self {
+			ReleaseTrack::Stable => "stable", 
+			ReleaseTrack::Beta => "beta", 
+			ReleaseTrack::Nightly => "nightly", 
+			ReleaseTrack::Testing => "testing",
+			ReleaseTrack::Unknown => "unknown",
+		})
+	}
+}
+
+impl<'a> From<&'a str> for ReleaseTrack {
+	fn from(s: &'a str) -> Self {
+		match s {
+			"stable" => ReleaseTrack::Stable, 
+			"beta" => ReleaseTrack::Beta, 
+			"nightly" => ReleaseTrack::Nightly, 
+			"testing" => ReleaseTrack::Testing, 
+			_ => ReleaseTrack::Unknown, 
+		}		
+	}
+}
+
+impl From<u8> for ReleaseTrack {
+	fn from(i: u8) -> Self {
+		match i {
+			1 => ReleaseTrack::Stable, 
+			2 => ReleaseTrack::Beta, 
+			3 => ReleaseTrack::Nightly, 
+			4 => ReleaseTrack::Testing, 
+			_ => ReleaseTrack::Unknown, 
+		}		
+	}
+}
+
+impl Into<u8> for ReleaseTrack {
+	fn into(self) -> u8 {
+		match self {
+			ReleaseTrack::Stable => 1, 
+			ReleaseTrack::Beta => 2, 
+			ReleaseTrack::Nightly => 3, 
+			ReleaseTrack::Testing => 4, 
+			ReleaseTrack::Unknown => 0, 
+		}		
+	}
+}

ipc-common-types/src/types/version_info.rs

@@ -0,0 +1,68 @@
+// Copyright 2015, 2016 Parity Technologies (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/>.
+
+//! Types used in the public API
+
+use std::fmt;
+use semver::{Version};
+use util::{H160};
+use util::misc::raw_package_info;
+use release_track::ReleaseTrack;
+
+/// Version information of a particular release. 
+#[derive(Debug, Clone, PartialEq, Binary)]
+pub struct VersionInfo {
+	/// The track on which it was released.
+	pub track: ReleaseTrack,
+	/// The version.
+	pub version: Version,
+	/// The (SHA1?) 160-bit hash of this build's code base.
+	pub hash: H160,
+}
+
+impl fmt::Display for VersionInfo {
+	fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
+		write!(f, "{}.{}.{}-{}-{}", self.version.major, self.version.minor, self.version.patch, self.track, self.hash)
+	}
+}
+
+impl VersionInfo {
+	/// Get information for this (currently running) binary.
+	pub fn this() -> Self {
+		let raw = raw_package_info();
+		VersionInfo {
+			track: raw.0.into(),
+			version: { let mut v = Version::parse(raw.1).expect("Environment variables are known to be valid; qed"); v.build = vec![]; v.pre = vec![]; v },
+			hash: raw.2.into(),
+		}
+	}
+
+	/// Compose the information from the provided raw fields.
+	pub fn from_raw(semver: u32, track: u8, hash: H160) -> Self {
+		let t = track.into();
+		VersionInfo {
+			version: Version {
+				major: (semver >> 16) as u64,
+				minor: ((semver >> 8) & 0xff) as u64,
+				patch: (semver & 0xff) as u64,
+				build: vec![],
+				pre: vec![],
+			},
+			track: t,
+			hash: hash,
+		}
+	}
+}

ipc/codegen/src/serialization.rs

@@ -263,7 +263,7 @@ fn binary_expr_struct(
 		let range_ident = builder.id(format!("r{}", index));
 
 		let error_message = "Error serializing member: ".to_owned() + &::syntax::print::pprust::expr_to_string(&member_expr);
-		let error_message_literal = builder.expr().lit().str::<&str>(&error_message);
+		let _error_message_literal = builder.expr().lit().str::<&str>(&error_message);
 
 		match raw_ident.as_ref() {
 			"u8" => {
@@ -286,7 +286,6 @@ fn binary_expr_struct(
 				post_write_stmts.push(quote_stmt!(cx,
 						if $range_ident.end - $range_ident.start > 0 {
 							if let Err(e) = $member_expr .to_bytes(&mut buffer[$range_ident], length_stack) {
-								warn!(target: "ipc", $error_message_literal);
 								return Err(e)
 							};
 						}

ipc/hypervisor/Cargo.toml

@@ -11,7 +11,7 @@ build = "build.rs"
 ethcore-ipc = { path = "../rpc" }
 nanomsg = { git = "https://github.com/ethcore/nanomsg.rs.git" }
 ethcore-ipc-nano = { path = "../nano" }
-semver = "0.2"
+semver = "0.5"
 log = "0.3"
 time = "0.1"
 

ipc/rpc/Cargo.toml

@@ -10,4 +10,4 @@ license = "GPL-3.0"
 ethcore-devtools = { path = "../../devtools" }
 nanomsg = { git = "https://github.com/ethcore/nanomsg.rs.git" }
 ethcore-util = { path = "../../util" }
-semver = "0.2"
+semver = "0.5"

ipc/rpc/src/binary.rs

@@ -804,6 +804,17 @@ binary_fixed_size!(H512);
 binary_fixed_size!(H2048);
 binary_fixed_size!(Address);
 binary_fixed_size!(BinHandshake);
+binary_fixed_size!(BinVersion);
+
+impl BinaryConvertable for ::semver::Version {
+	fn from_bytes(bytes: &[u8], length_stack: &mut ::std::collections::VecDeque<usize>) -> Result<Self, BinaryConvertError> {
+		BinVersion::from_bytes(bytes, length_stack).map(BinVersion::to_semver)
+	}
+
+	fn to_bytes(&self, buffer: &mut [u8], length_stack: &mut ::std::collections::VecDeque<usize>) -> Result<(), BinaryConvertError> {
+		BinVersion::from(self.clone()).to_bytes(buffer, length_stack)
+	}
+}
 
 #[test]
 fn vec_serialize() {

ipc/rpc/src/lib.rs

@@ -24,4 +24,4 @@ extern crate ethcore_util as util;
 pub mod interface;
 pub mod binary;
 pub use interface::{IpcInterface, IpcSocket, invoke, IpcConfig, Handshake, Error, WithSocket};
-pub use binary::{BinaryConvertable, BinaryConvertError, BinHandshake};
+pub use binary::{BinaryConvertable, BinaryConvertError, BinVersion, BinHandshake};

ipc/tests/Cargo.toml

@@ -10,7 +10,7 @@ path = "run.rs"
 [dependencies]
 ethcore-ipc = { path = "../rpc" }
 ethcore-devtools = { path = "../../devtools" }
-semver = "0.2"
+semver = "0.5"
 nanomsg = { git = "https://github.com/ethcore/nanomsg.rs.git" }
 ethcore-ipc-nano = { path = "../nano" }
 ethcore-util = { path = "../../util" }

js/package.json

@@ -1,6 +1,6 @@
 {
   "name": "parity.js",
-  "version": "0.2.126",
+  "version": "0.2.128",
   "main": "release/index.js",
   "jsnext:main": "src/index.js",
   "author": "Parity Team <admin@parity.io>",
@@ -36,7 +36,7 @@
     "ci:build:npm": "NODE_ENV=production webpack --config webpack/npm",
     "start": "npm install && npm run build:lib && npm run build:dll && npm run start:app",
     "start:app": "node webpack/dev.server",
-    "clean": "rm -rf ./build ./coverage",
+    "clean": "rm -rf ./.build ./.coverage ./.happypack ./.npmjs ./build",
     "coveralls": "npm run testCoverage && coveralls < coverage/lcov.info",
     "lint": "npm run lint:css && npm run lint:js",
     "lint:cached": "npm run lint:css && npm run lint:js:cached",

js/src/api/format/output.js

@@ -110,7 +110,8 @@ export function outPeers (peers) {
   return {
     active: outNumber(peers.active),
     connected: outNumber(peers.connected),
-    max: outNumber(peers.max)
+    max: outNumber(peers.max),
+    peers: peers.peers.map(p => { Object.keys(p.protocols).forEach(k => { p.protocols[k].difficulty = outNumber(p.protocols[k].difficulty); }); return p; })
   };
 }
 

js/src/api/format/output.spec.js

@@ -147,10 +147,50 @@ describe('api/format/output', () => {
 
   describe('outPeers', () => {
     it('converts all internal numbers to BigNumbers', () => {
-      expect(outPeers({ active: 789, connected: '456', max: 0x7b })).to.deep.equal({
+      expect(outPeers({
+        active: 789,
+        connected: '456',
+        max: 0x7b,
+        peers: [
+          {
+            caps: ['par/1'],
+            id: '0x01',
+            name: 'Parity',
+            network: {
+              localAddress: '10.0.0.1',
+              remoteAddress: '10.0.0.1'
+            },
+            protocols: {
+              par: {
+                difficulty: '0x0f',
+                head: '0x02',
+                version: 63
+              }
+            }
+          }
+        ]
+      })).to.deep.equal({
         active: new BigNumber(789),
         connected: new BigNumber(456),
-        max: new BigNumber(123)
+        max: new BigNumber(123),
+        peers: [
+          {
+            caps: ['par/1'],
+            id: '0x01',
+            name: 'Parity',
+            network: {
+              localAddress: '10.0.0.1',
+              remoteAddress: '10.0.0.1'
+            },
+            protocols: {
+              par: {
+                difficulty: new BigNumber(15),
+                head: '0x02',
+                version: 63
+              }
+            }
+          }
+        ]
       });
     });
   });

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

@@ -54,6 +54,11 @@ export default class Parity {
       .execute('parity_checkRequest', inNumber16(requestId));
   }
 
+  consensusCapability () {
+    return this._transport
+      .execute('parity_consensusCapability');
+  }
+
   dappsPort () {
     return this._transport
       .execute('parity_dappsPort')
@@ -90,6 +95,11 @@ export default class Parity {
       .execute('parity_enode');
   }
 
+  executeUpgrade () {
+    return this._transport
+      .execute('parity_executeUpgrade');
+  }
+
   extraData () {
     return this._transport
       .execute('parity_extraData');
@@ -243,6 +253,11 @@ export default class Parity {
       .then(outAddress);
   }
 
+  releasesInfo () {
+    return this._transport
+      .execute('parity_releasesInfo');
+  }
+
   removeReservedPeer (encode) {
     return this._transport
       .execute('parity_removeReservedPeer', encode);
@@ -315,4 +330,14 @@ export default class Parity {
       .execute('parity_unsignedTransactionsCount')
       .then(outNumber);
   }
+
+  upgradeReady () {
+    return this._transport
+      .execute('parity_upgradeReady');
+  }
+
+  versionInfo () {
+    return this._transport
+      .execute('parity_versionInfo');
+  }
 }

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

@@ -80,7 +80,7 @@ describe('api/rpc/parity', () => {
 
   describe('newPeers', () => {
     it('returns the peer structure, formatted', () => {
-      mockHttp([{ method: 'parity_netPeers', reply: { result: { active: 123, connected: 456, max: 789 } } }]);
+      mockHttp([{ method: 'parity_netPeers', reply: { result: { active: 123, connected: 456, max: 789, peers: [] } } }]);
 
       return instance.netPeers().then((peers) => {
         expect(peers.active.eq(123)).to.be.true;

js/src/jsonrpc/interfaces/parity.js

@@ -100,6 +100,15 @@ export default {
     }
   },
 
+  consensusCapability: {
+    desc: 'Returns an object or string detailing the state of parity capability of maintaining consensus',
+    params: [],
+    returns: {
+      type: Object,
+      desc: 'Either "capable", {"capableUntil":N}, {"incapableSince":N} or "unknown" (N is a block number)'
+    }
+  },
+
   dappsPort: {
     desc: 'Returns the port the dapps are running on, error if not enabled',
     params: [],
@@ -163,6 +172,15 @@ export default {
     }
   },
 
+  executeUpgrade: {
+    desc: 'Performs an upgrade',
+    params: [],
+    returns: {
+      type: Boolean,
+      desc: 'returns true if the upgrade to the release specified in parity_upgradeReady was successfully executed, false if not'
+    }
+  },
+
   extraData: {
     desc: 'Returns currently set extra data',
     params: [],
@@ -468,6 +486,15 @@ export default {
     }
   },
 
+  releasesInfo: {
+    desc: 'returns a ReleasesInfo object describing the current status of releases',
+    params: [],
+    returns: {
+      type: Object,
+      desc: '"fork":N,"minor":null,"this_fork":MN,"track":R} (N is a block number representing the latest known fork of this chain which may be in the future, MN is a block number representing the latest known fork that the currently running binary can sync past or null if not known, R is a ReleaseInfo object describing the latest release in this release track)'
+    }
+  },
+
   removeReservedPeer: {
     desc: '?',
     params: [
@@ -651,5 +678,23 @@ export default {
       type: Quantity,
       desc: 'Number of unsigned transactions'
     }
+  },
+
+  upgradeReady: {
+    desc: 'returns a ReleaseInfo object describing the release which is available for upgrade or null if none is available',
+    params: [],
+    returns: {
+      type: Object,
+      desc: '{"binary":H,"fork":15100,"is_critical":true,"version":V} where H is the Keccak-256 checksum of the release parity binary and V is a VersionInfo object describing the release'
+    }
+  },
+
+  versionInfo: {
+    desc: 'returns a VersionInfo object describing our current version',
+    params: [],
+    returns: {
+      type: Object,
+      desc: '{"hash":H,"track":T,"version":{"major":N,"minor":N,"patch":N}} (H is a 160-bit Git commit hash, T is a ReleaseTrack, either "stable", "beta", "nightly" or "unknown" and N is a version number)'
+    }
   }
 };

js/src/modals/UpgradeParity/index.js

@@ -0,0 +1,17 @@
+// Copyright 2015, 2016 Parity Technologies (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/>.
+
+export default from './upgradeParity';

js/src/modals/UpgradeParity/store.js

@@ -0,0 +1,146 @@
+// Copyright 2015, 2016 Parity Technologies (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 { action, computed, observable, transaction } from 'mobx';
+import store from 'store';
+
+const LS_UPDATE = '_parity::update';
+
+const A_MINUTE = 60 * 1000;
+const A_DAY = 24 * 60 * A_MINUTE;
+
+const STEP_INFO = 0;
+const STEP_UPDATING = 1;
+const STEP_COMPLETED = 2;
+const STEP_ERROR = 2;
+
+const CHECK_INTERVAL = 1 * A_MINUTE;
+
+export default class Store {
+  @observable available = null;
+  @observable consensusCapability = null;
+  @observable closed = true;
+  @observable error = null;
+  @observable remindAt = 0;
+  @observable step = 0;
+  @observable upgrading = null;
+  @observable version = null;
+
+  constructor (api) {
+    this._api = api;
+
+    this.loadStorage();
+    this.checkUpgrade();
+
+    setInterval(this.checkUpgrade, CHECK_INTERVAL);
+  }
+
+  @computed get isVisible () {
+    return !this.closed && Date.now() >= this.remindAt;
+  }
+
+  @action closeModal = () => {
+    transaction(() => {
+      this.closed = true;
+      this.setStep(0, null);
+    });
+  }
+
+  @action loadStorage = () => {
+    const values = store.get(LS_UPDATE) || {};
+
+    this.remindAt = values.remindAt ? values.remindAt : 0;
+
+    return values;
+  }
+
+  @action openModal = () => {
+    this.closed = false;
+  }
+
+  @action setStep = (step, error = null) => {
+    transaction(() => {
+      this.error = error;
+      this.step = step;
+    });
+  }
+
+  @action setUpgrading () {
+    transaction(() => {
+      this.upgrading = this.available;
+      this.setStep(STEP_UPDATING, null);
+    });
+  }
+
+  @action setVersions (available, version, consensusCapability) {
+    transaction(() => {
+      this.available = available;
+      this.consensusCapability = consensusCapability;
+      this.version = version;
+    });
+  }
+
+  @action snoozeTillTomorrow = () => {
+    this.remindAt = Date.now() + A_DAY;
+    store.set(LS_UPDATE, Object.assign(this.loadStorage(), { remindAt: this.remindAt }));
+  }
+
+  @action upgradeNow = () => {
+    this.setUpgrading();
+
+    return this._api.parity
+      .executeUpgrade()
+      .then((result) => {
+        if (!result) {
+          throw new Error('Unable to complete update');
+        }
+
+        this.setStep(STEP_COMPLETED, null);
+      })
+      .catch((error) => {
+        console.error('upgradeNow', error);
+
+        this.setStep(STEP_ERROR, error);
+      });
+  }
+
+  checkUpgrade = () => {
+    if (!this._api) {
+      return;
+    }
+
+    Promise
+      .all([
+        this._api.parity.upgradeReady(),
+        this._api.parity.consensusCapability(),
+        this._api.parity.versionInfo()
+      ])
+      .then(([available, consensusCapability, version]) => {
+        console.log('[checkUpgrade]', 'available:', available, 'version:', version, 'consensusCapability:', consensusCapability);
+        this.setVersions(available, version, consensusCapability);
+      })
+      .catch((error) => {
+        console.warn('checkUpgrade', error);
+      });
+  }
+}
+
+export {
+  STEP_COMPLETED,
+  STEP_ERROR,
+  STEP_INFO,
+  STEP_UPDATING
+};

js/src/modals/UpgradeParity/store.spec.js

@@ -0,0 +1,58 @@
+// Copyright 2015, 2016 Parity Technologies (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 Store from './store';
+
+let store;
+
+describe('modals/UpgradeParity/store', () => {
+  describe('@actions', () => {
+    beforeEach(() => {
+      store = new Store();
+    });
+
+    describe('openModal & closeModal', () => {
+      it('toggles between the closed states', () => {
+        expect(store.closed).to.be.true;
+        store.openModal();
+        expect(store.closed).to.be.false;
+        store.closeModal();
+        expect(store.closed).to.be.true;
+      });
+
+      it('resets the step state upon closing', () => {
+        store.setStep(5, 'soem error');
+        store.closeModal();
+        expect(store.step).to.equal(0);
+        expect(store.error).to.be.null;
+      });
+    });
+
+    describe('setStep', () => {
+      it('sets the step as provided', () => {
+        expect(store.step).to.equal(0);
+        store.setStep(3);
+        expect(store.step).to.equal(3);
+      });
+
+      it('sets the error when provided', () => {
+        expect(store.error).to.be.null;
+        store.setStep(3, new Error('some error'));
+        expect(store.error).to.match(/some error/);
+      });
+    });
+  });
+});

js/src/modals/UpgradeParity/upgradeParity.css

@@ -0,0 +1,32 @@
+/* Copyright 2015, 2016 Parity Technologies (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/>.
+*/
+
+.error {
+  padding-top: 1.25em;
+}
+
+.infoStep {
+  div+div {
+    padding-top: 1.25em;
+  }
+}
+
+.version {
+  display: inline;
+  opacity: 0.5;
+  white-space: normal;
+}

js/src/modals/UpgradeParity/upgradeParity.js

@@ -0,0 +1,257 @@
+// Copyright 2015, 2016 Parity Technologies (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 { observer } from 'mobx-react';
+import React, { Component, PropTypes } from 'react';
+import { FormattedMessage } from 'react-intl';
+
+import { Button } from '~/ui';
+import { CancelIcon, DoneIcon, NextIcon } from '~/ui/Icons';
+import Modal, { Busy, Completed } from '~/ui/Modal';
+
+import { STEP_COMPLETED, STEP_ERROR, STEP_INFO, STEP_UPDATING } from './store';
+import styles from './upgradeParity.css';
+
+@observer
+export default class UpgradeParity extends Component {
+  static contextTypes = {
+    api: PropTypes.object.isRequired
+  };
+
+  static propTypes = {
+    store: PropTypes.object.isRequired
+  }
+
+  render () {
+    const { store } = this.props;
+
+    if (!store.isVisible) {
+      return null;
+    }
+
+    return (
+      <Modal
+        actions={ this.renderActions() }
+        current={ store.step }
+        steps={ [
+          <FormattedMessage
+            id='upgradeParity.step.info'
+            key='info'
+            defaultMessage='upgrade available' />,
+          <FormattedMessage
+            key='updating'
+            id='upgradeParity.step.updating'
+            defaultMessage='upgrading parity' />,
+          store.step === STEP_ERROR
+            ? <FormattedMessage
+              id='upgradeParity.step.error'
+              key='error'
+              defaultMessage='error' />
+            : <FormattedMessage
+              id='upgradeParity.step.completed'
+              key='completed'
+              defaultMessage='upgrade completed' />
+        ] }
+        visible>
+        { this.renderStep() }
+      </Modal>
+    );
+  }
+
+  renderActions () {
+    const { store } = this.props;
+
+    const closeButton =
+      <Button
+        icon={ <CancelIcon /> }
+        key='close'
+        label={
+          <FormattedMessage
+            id='upgradeParity.button.close'
+            defaultMessage='close' />
+        }
+        onClick={ store.closeModal } />;
+    const doneButton =
+      <Button
+        icon={ <DoneIcon /> }
+        key='done'
+        label={
+          <FormattedMessage
+            id='upgradeParity.button.done'
+            defaultMessage='done' />
+        }
+        onClick={ store.closeModal } />;
+
+    switch (store.step) {
+      case STEP_INFO:
+        return [
+          <Button
+            icon={ <NextIcon /> }
+            key='upgrade'
+            label={
+              <FormattedMessage
+                id='upgradeParity.button.upgrade'
+                defaultMessage='upgrade now' />
+            }
+            onClick={ store.upgradeNow } />,
+          closeButton
+        ];
+
+      case STEP_UPDATING:
+        return [
+          closeButton
+        ];
+
+      case STEP_COMPLETED:
+      case STEP_ERROR:
+        return [
+          doneButton
+        ];
+    }
+  }
+
+  renderStep () {
+    const { store } = this.props;
+
+    const currentversion = this.formatVersion(store);
+    const newversion = store.upgrading
+      ? this.formatVersion(store.upgrading)
+      : this.formatVersion(store.available);
+
+    switch (store.step) {
+      case STEP_INFO:
+        return (
+          <div className={ styles.infoStep }>
+            <div>
+              <FormattedMessage
+                id='upgradeParity.info.upgrade'
+                defaultMessage='A new version of Parity, version {newversion} is available as an upgrade from your current version {currentversion}'
+                values={ {
+                  currentversion: <div className={ styles.version }>{ currentversion }</div>,
+                  newversion: <div className={ styles.version }>{ newversion }</div>
+                } } />
+            </div>
+            { this.renderConsensusInfo() }
+          </div>
+        );
+
+      case STEP_UPDATING:
+        return (
+          <Busy
+            title={
+              <FormattedMessage
+                id='upgradeParity.busy'
+                defaultMessage='Your upgrade to Parity {newversion} is currently in progress'
+                values={ {
+                  newversion: <div className={ styles.version }>{ newversion }</div>
+                } } />
+            } />
+        );
+
+      case STEP_COMPLETED:
+      case STEP_ERROR:
+        if (store.error) {
+          return (
+            <Completed>
+              <div>
+                <FormattedMessage
+                  id='upgradeParity.failed'
+                  defaultMessage='Your upgrade to Parity {newversion} has failed with an error.'
+                  values={ {
+                    newversion: <div className={ styles.version }>{ newversion }</div>
+                  } } />
+              </div>
+              <div className={ styles.error }>
+                { store.error.message }
+              </div>
+            </Completed>
+          );
+        }
+
+        return (
+          <Completed>
+            <FormattedMessage
+              id='upgradeParity.completed'
+              defaultMessage='Your upgrade to Parity {newversion} has been successfully completed.'
+              values={ {
+                newversion: <div className={ styles.version }>{ newversion }</div>
+              } } />
+          </Completed>
+        );
+    }
+  }
+
+  renderConsensusInfo () {
+    const { store } = this.props;
+    const { consensusCapability } = store;
+
+    if (consensusCapability) {
+      if (consensusCapability === 'capable') {
+        return (
+          <div>
+            <FormattedMessage
+              id='upgradeParity.consensus.capable'
+              defaultMessage='Your current Parity version is capable of handling the network requirements.' />
+          </div>
+        );
+      } else if (consensusCapability.capableUntil) {
+        return (
+          <div>
+            <FormattedMessage
+              id='upgradeParity.consensus.capableUntil'
+              defaultMessage='Your current Parity version is capable of handling the network requirements until block {blockNumber}'
+              values={ {
+                blockNumber: consensusCapability.capableUntil
+              } } />
+          </div>
+        );
+      } else if (consensusCapability.incapableSince) {
+        return (
+          <div>
+            <FormattedMessage
+              id='upgradeParity.consensus.incapableSince'
+              defaultMessage='Your current Parity version is incapable of handling the network requirements since block {blockNumber}'
+              values={ {
+                blockNumber: consensusCapability.incapableSince
+              } } />
+          </div>
+        );
+      }
+    }
+
+    return (
+      <div>
+        <FormattedMessage
+          id='upgradeParity.consensus.unknown'
+          defaultMessage='Your current Parity version is capable of handling the network requirements.' />
+      </div>
+    );
+  }
+
+  formatVersion (struct) {
+    if (!struct || !struct.version) {
+      return (
+        <FormattedMessage
+          id='upgradeParity.version.unknown'
+          defaultMessage='unknown' />
+      );
+    }
+
+    const { track, version } = struct.version;
+
+    return `${version.major}.${version.minor}.${version.patch}-${track}`;
+  }
+}

js/src/modals/Verification/email-store.js

@@ -23,6 +23,8 @@ import VerificationStore, {
 } from './store';
 import { postToServer } from '../../3rdparty/email-verification';
 
+const EMAIL_VERIFICATION = 4; // id in the `BadgeReg.sol` contract
+
 export default class EmailVerificationStore extends VerificationStore {
   @observable email = '';
 
@@ -54,7 +56,7 @@ export default class EmailVerificationStore extends VerificationStore {
   }
 
   constructor (api, account, isTestnet) {
-    super(api, EmailVerificationABI, 'emailverification3', account, isTestnet);
+    super(api, EmailVerificationABI, EMAIL_VERIFICATION, account, isTestnet);
   }
 
   requestValues = () => [ sha3(this.email) ]

js/src/modals/Verification/sms-store.js

@@ -23,6 +23,8 @@ import VerificationStore, {
 } from './store';
 import { postToServer } from '../../3rdparty/sms-verification';
 
+const SMS_VERIFICATION = 0; // id in the `BadgeReg.sol` contract
+
 export default class SMSVerificationStore extends VerificationStore {
   @observable number = '';
 
@@ -53,7 +55,7 @@ export default class SMSVerificationStore extends VerificationStore {
   }
 
   constructor (api, account, isTestnet) {
-    super(api, SMSVerificationABI, 'smsverification', account, isTestnet);
+    super(api, SMSVerificationABI, SMS_VERIFICATION, account, isTestnet);
   }
 
   @action setNumber = (number) => {

js/src/modals/Verification/store.js

@@ -46,13 +46,13 @@ export default class VerificationStore {
   @observable isCodeValid = null;
   @observable confirmationTx = null;
 
-  constructor (api, abi, name, account, isTestnet) {
+  constructor (api, abi, certifierId, account, isTestnet) {
     this.api = api;
     this.account = account;
     this.isTestnet = isTestnet;
 
     this.step = LOADING;
-    Contracts.get().badgeReg.fetchCertifier(name)
+    Contracts.get().badgeReg.fetchCertifier(certifierId)
       .then(({ address }) => {
         this.contract = new Contract(api, abi).at(address);
         this.load();

js/src/modals/index.js

@@ -23,12 +23,13 @@ import DeployContract from './DeployContract';
 import EditMeta from './EditMeta';
 import ExecuteContract from './ExecuteContract';
 import FirstRun from './FirstRun';
+import LoadContract from './LoadContract';
+import SaveContract from './SaveContract';
 import Shapeshift from './Shapeshift';
 import Verification from './Verification';
 import Transfer from './Transfer';
 import PasswordManager from './PasswordManager';
-import SaveContract from './SaveContract';
+import UpgradeParity from './UpgradeParity';
-import LoadContract from './LoadContract';
 import WalletSettings from './WalletSettings';
 
 export {
@@ -41,11 +42,12 @@ export {
   EditMeta,
   ExecuteContract,
   FirstRun,
+  LoadContract,
+  SaveContract,
   Shapeshift,
   Verification,
   Transfer,
   PasswordManager,
-  LoadContract,
+  UpgradeParity,
-  SaveContract,
   WalletSettings
 };

js/src/ui/Icons/index.js

@@ -0,0 +1,31 @@
+// Copyright 2015, 2016 Parity Technologies (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 AddIcon from 'material-ui/svg-icons/content/add';
+import CancelIcon from 'material-ui/svg-icons/content/clear';
+import DoneIcon from 'material-ui/svg-icons/action/done-all';
+import PrevIcon from 'material-ui/svg-icons/navigation/arrow-back';
+import NextIcon from 'material-ui/svg-icons/navigation/arrow-forward';
+import SnoozeIcon from 'material-ui/svg-icons/av/snooze';
+
+export {
+  AddIcon,
+  CancelIcon,
+  DoneIcon,
+  PrevIcon,
+  NextIcon,
+  SnoozeIcon
+};

js/src/ui/Modal/Busy/busy.js

@@ -16,17 +16,19 @@
 
 import React, { Component, PropTypes } from 'react';
 
+import { nodeOrStringProptype } from '~/util/proptypes';
+
 import styles from './busy.css';
 
 export default class Busy extends Component {
   static propTypes = {
-    title: PropTypes.string,
+    children: PropTypes.node,
-    state: PropTypes.string,
+    state: nodeOrStringProptype(),
-    children: PropTypes.node
+    title: nodeOrStringProptype()
   }
 
   render () {
-    const { children, title, state } = this.props;
+    const { children, state, title } = this.props;
 
     return (
       <div className={ styles.center }>

js/src/ui/Modal/Title/title.js

@@ -36,7 +36,13 @@ export default class Title extends Component {
 
     return (
       <div className={ styles.title }>
-        <h3>{ steps ? steps[current] : title }</h3>
+        <h3>
+          {
+            steps
+              ? steps[current]
+              : title
+          }
+        </h3>
         { this.renderSteps() }
         { this.renderWaiting() }
       </div>
@@ -63,10 +69,10 @@ export default class Title extends Component {
   renderTimeline () {
     const { steps } = this.props;
 
-    return steps.map((label) => {
+    return steps.map((label, index) => {
       return (
         <Step
-          key={ label }>
+          key={ label.key || index }>
           <StepLabel>
             { label }
           </StepLabel>

js/src/ui/Modal/modal.css

@@ -14,16 +14,17 @@
 /* You should have received a copy of the GNU General Public License
 /* along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 */
+
 .actions {
   background: rgba(0, 0, 0, 0.25) !important;
-}
 
-.actions button:not([disabled]) {
+  button:not([disabled]) {
-  color: white !important;
+    color: white !important;
-}
 
-.actions button:not([disabled]) svg {
+    svg {
-  fill: white !important;
+      fill: white !important;
+    }
+  }
 }
 
 .body {
@@ -36,26 +37,26 @@
 .content {
   transform: translate(0px, 0px) !important;
   transition: none !important;
-}
 
-.content>div {
+  &>div {
-  background: rgba(0, 0, 0, 0.5) !important;
+    background: rgba(0, 0, 0, 0.5) !important;
-  transition: none !important;
+    transition: none !important;
+  }
 }
 
 .title {
+  background: rgba(0, 0, 0, 0.25) !important;
   padding: 1em;
   margin-bottom: 0;
-  background: rgba(0, 0, 0, 0.25) !important;
-}
 
-.title h3 {
+  h3 {
-  margin: 0;
+    margin: 0;
-  text-transform: uppercase;
+    text-transform: uppercase;
-}
+  }
 
-.title .steps {
+  .steps {
-  margin-bottom: -1em;
+    margin-bottom: -1em;
+  }
 }
 
 .waiting {

js/src/ui/Modal/modal.js

@@ -14,10 +14,10 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
+import { Dialog } from 'material-ui';
 import React, { Component, PropTypes } from 'react';
 import { connect } from 'react-redux';
 import { bindActionCreators } from 'redux';
-import { Dialog } from 'material-ui';
 
 import { nodeOrStringProptype } from '~/util/proptypes';
 
@@ -51,7 +51,7 @@ class Modal extends Component {
 
   render () {
     const { muiTheme } = this.context;
-    const { actions, busy, className, current, children, compact, steps, waiting, title, visible, settings } = this.props;
+    const { actions, busy, children, className, current, compact, settings, steps, title, visible, waiting } = this.props;
     const contentStyle = muiTheme.parity.getBackgroundStyle(null, settings.backgroundSeed);
     const header = (
       <Title

js/src/ui/index.js

@@ -33,6 +33,7 @@ import Errors from './Errors';
 import Form, { AddressSelect, FormWrap, TypedInput, Input, InputAddress, InputAddressSelect, InputChip, InputInline, Select, RadioButtons } from './Form';
 import GasPriceEditor from './GasPriceEditor';
 import GasPriceSelector from './GasPriceSelector';
+import Icons from './Icons';
 import IdentityIcon from './IdentityIcon';
 import IdentityName from './IdentityName';
 import LanguageSelector from './LanguageSelector';
@@ -72,6 +73,7 @@ export {
   FormWrap,
   GasPriceEditor,
   GasPriceSelector,
+  Icons,
   Input,
   InputAddress,
   InputAddressSelect,

js/src/views/Application/Container/container.js

@@ -16,7 +16,7 @@
 
 import React, { Component, PropTypes } from 'react';
 
-import { FirstRun } from '~/modals';
+import { FirstRun, UpgradeParity } from '~/modals';
 import { Errors, ParityBackground, Tooltips } from '~/ui';
 
 import styles from '../application.css';
@@ -28,20 +28,24 @@ export default class Container extends Component {
 
   static propTypes = {
     children: PropTypes.node.isRequired,
+    onCloseFirstRun: PropTypes.func,
     showFirstRun: PropTypes.bool,
-    onCloseFirstRun: PropTypes.func
+    upgradeStore: PropTypes.object.isRequired
   };
 
   render () {
-    const { children, showFirstRun, onCloseFirstRun } = this.props;
     const { muiTheme } = this.context;
+    const { children, onCloseFirstRun, showFirstRun, upgradeStore } = this.props;
 
     return (
-      <ParityBackground className={ styles.container } muiTheme={ muiTheme }>
+      <ParityBackground
+        className={ styles.container }
+        muiTheme={ muiTheme }>
         <FirstRun
-          visible={ showFirstRun }
+          onClose={ onCloseFirstRun }
-          onClose={ onCloseFirstRun } />
+          visible={ showFirstRun } />
         <Tooltips />
+        <UpgradeParity store={ upgradeStore } />
         <Errors />
         { children }
       </ParityBackground>

js/src/views/Application/Status/status.css

@@ -14,55 +14,52 @@
 /* You should have received a copy of the GNU General Public License
 /* along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 */
+
 .status {
-  position: fixed;
+  align-items: center;
+  background-color: rgba(0, 0, 0, 0.8);
   bottom: 0;
+  color: #ccc;
+  display: flex;
+  font-size: 0.75em;
   left: 0;
+  padding: .4em .5em;
+  position: fixed;
   right: 0;
   z-index: 1000;
-  display: flex;
-  align-items: center;
-  padding: .4em .5em;
-  font-size: x-small;
-  color: #ccc;
-  background-color: rgba(0, 0, 0, 0.8);
-}
-
-.enode {
-  word-wrap: break-word;
-}
-
-.enode > * {
-  display: inline-block;
-  margin: 0 .25em;
-  vertical-align: middle;
-}
-.enode > :last-child {
-  margin-right: 0;
 }
 
 .netinfo {
-  display: flex;
-  flex-grow: 1;
-  align-items: center;
   color: #ddd;
-}
+  flex-grow: 1;
+  text-align: right;
+  vertical-align: middle;
+  text-align: right;
 
-.netinfo > * {
+  div {
-  margin-left: 1em;
+    display: inline-block;
+    margin-left: 1em;
+  }
 }
 
 .network {
-  padding: 0.25em 0.5em;
+  border-radius: 0.4em;
-  border-radius: .4em;
   line-height: 1.2;
+  padding: 0.25em 0.5em;
   text-transform: uppercase;
+
+  &.live {
+    background: rgb(0, 136, 0);
+  }
+
+  &.test {
+    background: rgb(136, 0, 0);
+  }
 }
 
-.networklive {
+.upgrade {
-  background: rgb(0, 136, 0);
+  div {
-}
+    display: inline-block;
-
+    margin-left: 1em;
-.networktest {
+  }
-  background: rgb(136, 0, 0);
 }

js/src/views/Application/Status/status.js

@@ -15,78 +15,118 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
 import React, { Component, PropTypes } from 'react';
+import { FormattedMessage } from 'react-intl';
 import { connect } from 'react-redux';
 import { bindActionCreators } from 'redux';
 
 import { BlockStatus } from '~/ui';
-import CopyToClipboard from '~/ui/CopyToClipboard';
 
 import styles from './status.css';
 
 class Status extends Component {
   static propTypes = {
-    blockNumber: PropTypes.object.isRequired,
     clientVersion: PropTypes.string,
-    enode: PropTypes.string,
+    isTest: PropTypes.bool,
-    netPeers: PropTypes.object,
     netChain: PropTypes.string,
-    isTest: PropTypes.bool
+    netPeers: PropTypes.object,
+    upgradeStore: PropTypes.object.isRequired
   }
 
   render () {
-    const { blockNumber, clientVersion, netChain, netPeers, isTest } = this.props;
+    const { clientVersion, isTest, netChain, netPeers } = this.props;
-    const netStyle = `${styles.network} ${styles[isTest ? 'networktest' : 'networklive']}`;
-
-    if (!blockNumber) {
-      return null;
-    }
 
     return (
       <div className={ styles.status }>
         <div className={ styles.version }>
           { clientVersion }
         </div>
+        <div className={ styles.upgrade }>
+          { this.renderConsensus() }
+          { this.renderUpgradeButton() }
+        </div>
         <div className={ styles.netinfo }>
           <BlockStatus />
-          <div className={ netStyle }>
+          <div className={ `${styles.network} ${styles[isTest ? 'test' : 'live']}` }>
-            { isTest ? 'test' : netChain }
+            { netChain }
           </div>
           <div className={ styles.peers }>
             { netPeers.active.toFormat() }/{ netPeers.connected.toFormat() }/{ netPeers.max.toFormat() } peers
           </div>
         </div>
-        { this.renderEnode() }
       </div>
     );
   }
 
-  renderEnode () {
+  renderConsensus () {
-    const { enode } = this.props;
+    const { upgradeStore } = this.props;
 
-    if (!enode) {
+    if (upgradeStore.consensusCapability === 'capable') {
+      return (
+        <div>
+          <FormattedMessage
+            id='application.status.consensus.capable'
+            defaultMessage='Capable' />
+        </div>
+      );
+    } else if (upgradeStore.consensusCapability.capableUntil) {
+      return (
+        <div>
+          <FormattedMessage
+            id='application.status.consensus.capableUntil'
+            defaultMessage='Capable until #{blockNumber}'
+            values={ {
+              blockNumber: upgradeStore.consensusCapability.capableUntil
+            } } />
+        </div>
+      );
+    } else if (upgradeStore.consensusCapability.incapableSince) {
+      return (
+        <div>
+          <FormattedMessage
+            id='application.status.consensus.incapableSince'
+            defaultMessage='Incapable since #{blockNumber}'
+            values={ {
+              blockNumber: upgradeStore.consensusCapability.incapableSince
+            } } />
+        </div>
+      );
+    }
+
+    return (
+      <div>
+        <FormattedMessage
+          id='application.status.consensus.unknown'
+          defaultMessage='Unknown capability' />
+      </div>
+    );
+  }
+
+  renderUpgradeButton () {
+    const { upgradeStore } = this.props;
+
+    if (!upgradeStore.available) {
       return null;
     }
 
-    const [protocol, rest] = enode.split('://');
-    const [id, host] = rest.split('@');
-    const abbreviated = `${protocol}://${id.slice(0, 3)}…${id.slice(-3)}@${host}`;
-
     return (
-      <div className={ styles.enode }>
+      <div>
-        <CopyToClipboard data={ enode } size={ 12 } />
+        <a
-        <div>{ abbreviated }</div>
+          href='javascript:void(0)'
+          onClick={ upgradeStore.openModal }>
+          <FormattedMessage
+            id='application.status.upgrade'
+            defaultMessage='Upgrade' />
+        </a>
       </div>
     );
   }
 }
 
 function mapStateToProps (state) {
-  const { blockNumber, clientVersion, enode, netPeers, netChain, isTest } = state.nodeStatus;
+  const { clientVersion, netPeers, netChain, isTest } = state.nodeStatus;
 
   return {
-    blockNumber,
     clientVersion,
-    enode,
     netPeers,
     netChain,
     isTest

js/src/views/Application/application.css

@@ -22,5 +22,5 @@
 }
 
 .content {
-  padding-bottom: 1em;
+  padding-bottom: 1.25em;
 }

js/src/views/Application/application.js

@@ -19,6 +19,8 @@ import { connect } from 'react-redux';
 import { bindActionCreators } from 'redux';
 import { observer } from 'mobx-react';
 
+import UpgradeStore from '~/modals/UpgradeParity/store';
+
 import Connection from '../Connection';
 import ParityBar from '../ParityBar';
 
@@ -42,14 +44,15 @@ class Application extends Component {
   }
 
   static propTypes = {
+    blockNumber: PropTypes.object,
     children: PropTypes.node,
-    netChain: PropTypes.string,
     isTest: PropTypes.bool,
-    pending: PropTypes.array,
+    netChain: PropTypes.string,
-    blockNumber: PropTypes.object
+    pending: PropTypes.array
   }
 
   store = new Store(this.context.api);
+  upgradeStore = new UpgradeStore(this.context.api);
 
   render () {
     const [root] = (window.location.hash || '').replace('#/', '').split('/');
@@ -71,12 +74,13 @@ class Application extends Component {
   }
 
   renderApp () {
-    const { children, pending, netChain, isTest, blockNumber } = this.props;
+    const { blockNumber, children, pending, netChain, isTest } = this.props;
 
     return (
       <Container
-        showFirstRun={ this.store.firstrunVisible }
+        upgradeStore={ this.upgradeStore }
-        onCloseFirstRun={ this.store.closeFirstrun }>
+        onCloseFirstRun={ this.store.closeFirstrun }
+        showFirstRun={ this.store.firstrunVisible }>
         <TabBar
           netChain={ netChain }
           isTest={ isTest }
@@ -84,7 +88,11 @@ class Application extends Component {
         <div className={ styles.content }>
           { children }
         </div>
-        { blockNumber ? (<Status />) : null }
+        {
+          blockNumber
+            ? <Status upgradeStore={ this.upgradeStore } />
+            : null
+        }
         <Snackbar />
       </Container>
     );
@@ -102,16 +110,16 @@ class Application extends Component {
 }
 
 function mapStateToProps (state) {
-  const { netChain, isTest, blockNumber } = state.nodeStatus;
+  const { blockNumber, netChain, isTest } = state.nodeStatus;
   const { hasAccounts } = state.personal;
   const { pending } = state.signer;
 
   return {
+    blockNumber,
     hasAccounts,
-    netChain,
     isTest,
-    pending,
+    netChain,
-    blockNumber
+    pending
   };
 }
 

js/src/views/Status/components/Status/status.css

@@ -20,12 +20,12 @@
 
 .row {
   margin: 0 -1em;
-}
 
-.row::after {
+  &::after {
-  display: table;
+    display: table;
-  clear: both;
+    clear: both;
-  content: '';
+    content: '';
+  }
 }
 
 .blockInfo {
@@ -44,7 +44,7 @@
 }
 
 .col,
-.col1, .col2, .col3, .col4, .col5, .col6, .col7, .col8, .col9, .col10, .col11, .col12 {
+.col3, .col4_5, .col6, .col12 {
   float: left;
   padding: 0 1em;
   box-sizing: border-box;
@@ -57,18 +57,11 @@
   width: calc(100% / 12 * 3);
 }
 
-.col4 {
+.col4_5 {
-  width: 33.33333%;
+  width: 37.5%;
-  width: -webkit-calc(100% / 12 * 4);
+  width: -webkit-calc(100% / 12 * 4.5);
-  width: -moz-calc(100% / 12 * 4);
+  width: -moz-calc(100% / 12 * 4.5);
-  width: calc(100% / 12 * 4);
+  width: calc(100% / 12 * 4.5);
-}
-
-.col5 {
-  width: 41.66665%;
-  width: -webkit-calc(100% / 12 * 5);
-  width: -moz-calc(100% / 12 * 5);
-  width: calc(100% / 12 * 5);
 }
 
 .col6 {

js/src/views/Status/components/Status/status.js

@@ -68,13 +68,13 @@ export default class Status extends Component {
                 </div>
               </div>
             </div>
-            <div className={ styles.col5 }>
+            <div className={ styles.col4_5 }>
               <MiningSettings
                 { ...this._test('mining') }
                 nodeStatus={ nodeStatus }
                 actions={ this.props.actions } />
             </div>
-            <div className={ styles.col4 }>
+            <div className={ styles.col4_5 }>
               { this.renderSettings() }
             </div>
           </div>
@@ -102,6 +102,7 @@ export default class Status extends Component {
       <div { ...this._test('settings') }>
         <ContainerTitle title='network settings' />
         <Input
+          allowCopy
           readOnly
           label='chain'
           value={ nodeStatus.netChain }
@@ -109,6 +110,7 @@ export default class Status extends Component {
         <div className={ styles.row }>
           <div className={ styles.col6 }>
             <Input
+              allowCopy
               readOnly
               label='peers'
               value={ peers }
@@ -116,6 +118,7 @@ export default class Status extends Component {
           </div>
           <div className={ styles.col6 }>
             <Input
+              allowCopy
               readOnly
               label='network port'
               value={ nodeStatus.netPort.toString() }
@@ -124,6 +127,7 @@ export default class Status extends Component {
         </div>
 
         <Input
+          allowCopy
           readOnly
           label='rpc enabled'
           value={ rpcSettings.enabled ? 'yes' : 'no' }
@@ -131,6 +135,7 @@ export default class Status extends Component {
         <div className={ styles.row }>
           <div className={ styles.col6 }>
             <Input
+              allowCopy
               readOnly
               label='rpc interface'
               value={ rpcSettings.interface }
@@ -138,12 +143,24 @@ export default class Status extends Component {
           </div>
           <div className={ styles.col6 }>
             <Input
+              allowCopy
               readOnly
               label='rpc port'
               value={ rpcSettings.port.toString() }
               { ...this._test('rpc-port') } />
           </div>
         </div>
+
+        <div className={ styles.row }>
+          <div className={ styles.col12 }>
+            <Input
+              allowCopy
+              readOnly
+              label='enode'
+              value={ nodeStatus.enode }
+              { ...this._test('node-enode') } />
+          </div>
+        </div>
       </div>
     );
   }

logger/src/lib.rs

@@ -27,12 +27,12 @@ extern crate time;
 extern crate lazy_static;
 
 use std::{env, thread, fs};
-use std::sync::Arc;
+use std::sync::{Weak, Arc};
 use std::io::Write;
 use isatty::{stderr_isatty, stdout_isatty};
 use env_logger::LogBuilder;
 use regex::Regex;
-use util::RotatingLogger;
+use util::{Mutex, RotatingLogger}	;
 use util::log::Colour;
 
 #[derive(Debug, PartialEq, Clone)]
@@ -52,6 +52,10 @@ impl Default for Config {
 	}
 }
 
+lazy_static! {
+	static ref ROTATING_LOGGER : Mutex<Weak<RotatingLogger>> = Mutex::new(Default::default());
+}
+
 /// Sets up the logger
 pub fn setup_log(config: &Config) -> Result<Arc<RotatingLogger>, String> {
 	use rlog::*;
@@ -121,9 +125,17 @@ pub fn setup_log(config: &Config) -> Result<Arc<RotatingLogger>, String> {
     };
 
 	builder.format(format);
-	builder.init().expect("Logger initialized only once.");
+	builder.init()
-
+		.and_then(|_| {
-	Ok(logs)
+			*ROTATING_LOGGER.lock() = Arc::downgrade(&logs);
+			Ok(logs)
+		})
+		// couldn't create new logger - try to fall back on previous logger.
+		.or_else(|err| match ROTATING_LOGGER.lock().upgrade() {
+			Some(l) => Ok(l),
+			// no previous logger. fatal.
+			None => Err(format!("{:?}", err)),
+		})
 }
 
 fn kill_color(s: &str) -> String {

parity/blockchain.rs

@@ -32,7 +32,6 @@ use ethcore::verification::queue::VerifierSettings;
 use cache::CacheConfig;
 use informant::{Informant, MillisecondDuration};
 use params::{SpecType, Pruning, Switch, tracing_switch_to_bool, fatdb_switch_to_bool};
-use io_handler::ImportIoHandler;
 use helpers::{to_client_config, execute_upgrades};
 use dir::Directories;
 use user_defaults::UserDefaults;
@@ -134,7 +133,7 @@ pub struct ExportState {
 	pub max_balance: Option<U256>,
 }
 
-pub fn execute(cmd: BlockchainCmd) -> Result<String, String> {
+pub fn execute(cmd: BlockchainCmd) -> Result<(), String> {
 	match cmd {
 		BlockchainCmd::Kill(kill_cmd) => kill_db(kill_cmd),
 		BlockchainCmd::Import(import_cmd) => execute_import(import_cmd),
@@ -143,7 +142,7 @@ pub fn execute(cmd: BlockchainCmd) -> Result<String, String> {
 	}
 }
 
-fn execute_import(cmd: ImportBlockchain) -> Result<String, String> {
+fn execute_import(cmd: ImportBlockchain) -> Result<(), String> {
 	let timer = Instant::now();
 
 	// Setup panic handler
@@ -180,7 +179,7 @@ fn execute_import(cmd: ImportBlockchain) -> Result<String, String> {
 	let snapshot_path = db_dirs.snapshot_path();
 
 	// execute upgrades
-	try!(execute_upgrades(&db_dirs, algorithm, cmd.compaction.compaction_profile(db_dirs.db_root_path().as_path())));
+	try!(execute_upgrades(&cmd.dirs.base, &db_dirs, algorithm, cmd.compaction.compaction_profile(db_dirs.db_root_path().as_path())));
 
 	// create dirs used by parity
 	try!(cmd.dirs.create_dirs(false, false));
@@ -239,11 +238,8 @@ fn execute_import(cmd: ImportBlockchain) -> Result<String, String> {
 		}
 	};
 
-	let informant = Informant::new(client.clone(), None, None, None, cmd.with_color);
+	let informant = Arc::new(Informant::new(client.clone(), None, None, None, cmd.with_color));
-
+	service.register_io_handler(informant).map_err(|_| "Unable to register informant handler".to_owned())?;
-	try!(service.register_io_handler(Arc::new(ImportIoHandler {
-		info: Arc::new(informant),
-	})).map_err(|_| "Unable to register informant handler".to_owned()));
 
 	let do_import = |bytes| {
 		while client.queue_info().is_full() { sleep(Duration::from_secs(1)); }
@@ -259,7 +255,6 @@ fn execute_import(cmd: ImportBlockchain) -> Result<String, String> {
 		Ok(())
 	};
 
-
 	match format {
 		DataFormat::Binary => {
 			loop {
@@ -298,7 +293,7 @@ fn execute_import(cmd: ImportBlockchain) -> Result<String, String> {
 	let report = client.report();
 
 	let ms = timer.elapsed().as_milliseconds();
-	Ok(format!("Import completed in {} seconds, {} blocks, {} blk/s, {} transactions, {} tx/s, {} Mgas, {} Mgas/s",
+	info!("Import completed in {} seconds, {} blocks, {} blk/s, {} transactions, {} tx/s, {} Mgas, {} Mgas/s",
 		ms / 1000,
 		report.blocks_imported,
 		(report.blocks_imported * 1000) as u64 / ms,
@@ -306,7 +301,8 @@ fn execute_import(cmd: ImportBlockchain) -> Result<String, String> {
 		(report.transactions_applied * 1000) as u64 / ms,
 		report.gas_processed / From::from(1_000_000),
 		(report.gas_processed / From::from(ms * 1000)).low_u64(),
-	).into())
+	);
+	Ok(())
 }
 
 fn start_client(
@@ -318,7 +314,8 @@ fn start_client(
 	fat_db: Switch,
 	compaction: DatabaseCompactionProfile,
 	wal: bool,
-	cache_config: CacheConfig) -> Result<ClientService, String> {
+	cache_config: CacheConfig
+) -> Result<ClientService, String> {
 
 	// load spec file
 	let spec = try!(spec.spec());
@@ -351,7 +348,7 @@ fn start_client(
 	let snapshot_path = db_dirs.snapshot_path();
 
 	// execute upgrades
-	try!(execute_upgrades(&db_dirs, algorithm, compaction.compaction_profile(db_dirs.db_root_path().as_path())));
+	try!(execute_upgrades(&dirs.base, &db_dirs, algorithm, compaction.compaction_profile(db_dirs.db_root_path().as_path())));
 
 	// create dirs used by parity
 	try!(dirs.create_dirs(false, false));
@@ -372,7 +369,7 @@ fn start_client(
 	Ok(service)
 }
 
-fn execute_export(cmd: ExportBlockchain) -> Result<String, String> {
+fn execute_export(cmd: ExportBlockchain) -> Result<(), String> {
 	// Setup panic handler
 	let service = try!(start_client(cmd.dirs, cmd.spec, cmd.pruning, cmd.pruning_history, cmd.tracing, cmd.fat_db, cmd.compaction, cmd.wal, cmd.cache_config));
 	let panic_handler = PanicHandler::new_in_arc();
@@ -400,10 +397,11 @@ fn execute_export(cmd: ExportBlockchain) -> Result<String, String> {
 		}
 	}
 
-	Ok("Export completed.".into())
+	info!("Export completed.");
+	Ok(())
 }
 
-fn execute_export_state(cmd: ExportState) -> Result<String, String> {
+fn execute_export_state(cmd: ExportState) -> Result<(), String> {
 	// Setup panic handler
 	let service = try!(start_client(cmd.dirs, cmd.spec, cmd.pruning, cmd.pruning_history, cmd.tracing, cmd.fat_db, cmd.compaction, cmd.wal, cmd.cache_config));
 	let panic_handler = PanicHandler::new_in_arc();
@@ -479,10 +477,11 @@ fn execute_export_state(cmd: ExportState) -> Result<String, String> {
 		}
 	}
 	out.write_fmt(format_args!("\n]}}")).expect("Write error");
-	Ok("Export completed.".into())
+	info!("Export completed.");
+	Ok(())
 }
 
-pub fn kill_db(cmd: KillBlockchain) -> Result<String, String> {
+pub fn kill_db(cmd: KillBlockchain) -> Result<(), String> {
 	let spec = try!(cmd.spec.spec());
 	let genesis_hash = spec.genesis_header().hash();
 	let db_dirs = cmd.dirs.database(genesis_hash, None, spec.data_dir);
@@ -491,7 +490,8 @@ pub fn kill_db(cmd: KillBlockchain) -> Result<String, String> {
 	let algorithm = cmd.pruning.to_algorithm(&user_defaults);
 	let dir = db_dirs.db_path(algorithm);
 	try!(fs::remove_dir_all(&dir).map_err(|e| format!("Error removing database: {:?}", e)));
-	Ok("Database deleted.".to_owned())
+	info!("Database deleted.");
+	Ok(())
 }
 
 #[cfg(test)]

parity/cli/config.full.toml

@@ -2,8 +2,14 @@
 mode = "last"
 mode_timeout = 300
 mode_alarm = 3600
+auto_update = "critical"
+release_track = "current"
+no_download = false
+no_consensus = false
+
 chain = "homestead"
-db_path = "$HOME/.parity"
+base_path = "$HOME/.parity"
+db_path = "$HOME/.parity/chains"
 keys_path = "$HOME/.parity/keys"
 identity = ""
 

parity/cli/mod.rs

@@ -85,9 +85,14 @@ usage! {
 		flag_mode: String = "last", or |c: &Config| otry!(c.parity).mode.clone(),
 		flag_mode_timeout: u64 = 300u64, or |c: &Config| otry!(c.parity).mode_timeout.clone(),
 		flag_mode_alarm: u64 = 3600u64, or |c: &Config| otry!(c.parity).mode_alarm.clone(),
+		flag_auto_update: String = "critical", or |c: &Config| otry!(c.parity).auto_update.clone(),
+		flag_release_track: String = "current", or |c: &Config| otry!(c.parity).release_track.clone(),
+		flag_no_download: bool = false, or |c: &Config| otry!(c.parity).no_download.clone(),
+		flag_no_consensus: bool = false, or |c: &Config| otry!(c.parity).no_consensus.clone(),
 		flag_chain: String = "homestead", or |c: &Config| otry!(c.parity).chain.clone(),
-		flag_db_path: String = default_data_path(), or |c: &Config| otry!(c.parity).db_path.clone(),
+		flag_base_path: String = default_data_path(), or |c: &Config| otry!(c.parity).base_path.clone(),
-		flag_keys_path: String = "$DATA/keys", or |c: &Config| otry!(c.parity).keys_path.clone(),
+		flag_db_path: String = "$BASE/chains", or |c: &Config| otry!(c.parity).db_path.clone(),
+		flag_keys_path: String = "$BASE/keys", or |c: &Config| otry!(c.parity).keys_path.clone(),
 		flag_identity: String = "", or |c: &Config| otry!(c.parity).identity.clone(),
 
 		// -- Account Options
@@ -106,7 +111,7 @@ usage! {
 			or |c: &Config| otry!(c.ui).port.clone(),
 		flag_ui_interface: String = "local",
 			or |c: &Config| otry!(c.ui).interface.clone(),
-		flag_ui_path: String = "$DATA/signer",
+		flag_ui_path: String = "$BASE/signer",
 			or |c: &Config| otry!(c.ui).path.clone(),
 		// NOTE [todr] For security reasons don't put this to config files
 		flag_ui_no_validation: bool = false, or |_| None,
@@ -162,7 +167,7 @@ usage! {
 		// IPC
 		flag_no_ipc: bool = false,
 			or |c: &Config| otry!(c.ipc).disable.clone(),
-		flag_ipc_path: String = "$DATA/jsonrpc.ipc",
+		flag_ipc_path: String = "$BASE/jsonrpc.ipc",
 			or |c: &Config| otry!(c.ipc).path.clone(),
 		flag_ipc_apis: String = "web3,eth,net,parity,parity_accounts,traces,rpc",
 			or |c: &Config| otry!(c.ipc).apis.clone().map(|vec| vec.join(",")),
@@ -176,7 +181,7 @@ usage! {
 			or |c: &Config| otry!(c.dapps).interface.clone(),
 		flag_dapps_hosts: String = "none",
 			or |c: &Config| otry!(c.dapps).hosts.clone().map(|vec| vec.join(",")),
-		flag_dapps_path: String = "$DATA/dapps",
+		flag_dapps_path: String = "$BASE/dapps",
 			or |c: &Config| otry!(c.dapps).path.clone(),
 		flag_dapps_user: Option<String> = None,
 			or |c: &Config| otry!(c.dapps).user.clone().map(Some),
@@ -277,7 +282,7 @@ usage! {
 			or |c: &Config| otry!(c.vm).jit.clone(),
 
 		// -- Miscellaneous Options
-		flag_config: String = "$DATA/config.toml", or |_| None,
+		flag_config: String = "$BASE/config.toml", or |_| None,
 		flag_logging: Option<String> = None,
 			or |c: &Config| otry!(c.misc).logging.clone().map(Some),
 		flag_log_file: Option<String> = None,
@@ -309,7 +314,12 @@ struct Operating {
 	mode: Option<String>,
 	mode_timeout: Option<u64>,
 	mode_alarm: Option<u64>,
+	auto_update: Option<String>,
+	release_track: Option<String>,
+	no_download: Option<bool>,
+	no_consensus: Option<bool>,
 	chain: Option<String>,
+	base_path: Option<String>,
 	db_path: Option<String>,
 	keys_path: Option<String>,
 	identity: Option<String>,
@@ -533,8 +543,13 @@ mod tests {
 			flag_mode: "last".into(),
 			flag_mode_timeout: 300u64,
 			flag_mode_alarm: 3600u64,
+			flag_auto_update: "critical".into(),
+			flag_release_track: "current".into(),
+			flag_no_download: false,
+			flag_no_consensus: false,
 			flag_chain: "xyz".into(),
-			flag_db_path: "$HOME/.parity".into(),
+			flag_base_path: "$HOME/.parity".into(),
+			flag_db_path: "$HOME/.parity/chains".into(),
 			flag_keys_path: "$HOME/.parity/keys".into(),
 			flag_identity: "".into(),
 
@@ -676,7 +691,7 @@ mod tests {
 
 			// -- Miscellaneous Options
 			flag_version: false,
-			flag_config: "$DATA/config.toml".into(),
+			flag_config: "$BASE/config.toml".into(),
 			flag_logging: Some("own_tx=trace".into()),
 			flag_log_file: Some("/var/log/parity.log".into()),
 			flag_no_color: false,
@@ -707,7 +722,12 @@ mod tests {
 				mode: Some("dark".into()),
 				mode_timeout: Some(15u64),
 				mode_alarm: Some(10u64),
+				auto_update: None,
+				release_track: None,
+				no_download: None,
+				no_consensus: None,
 				chain: Some("./chain.json".into()),
+				base_path: None,
 				db_path: None,
 				keys_path: None,
 				identity: None,

parity/cli/usage.txt

@@ -34,11 +34,34 @@ Operating Options:
   --mode-alarm SECS        Specify the number of seconds before auto sleep
                            reawake timeout occurs when mode is passive
                            (default: {flag_mode_alarm}).
+  --auto-update SET        Set a releases set to automatically update and
+                           install.
+                           all - All updates in the our release track. 
+                           critical - Only consensus/security updates.
+                           none - No updates will be auto-installed. 
+                           (default: {flag_auto_update}).
+  --release-track TRACK    Set which release track we should use for updates.
+                           stable - Stable releases. 
+                           beta - Beta releases. 
+                           nightly - Nightly releases (unstable).
+                           testing - Testing releases (do not use). 
+                           current - Whatever track this executable was
+                           released on (default: {flag_release_track}).
+  --no-download            Normally new releases will be downloaded ready for
+                           updating. This disables it. Not recommended.
+                           (default: {flag_no_download}).
+  --no-consensus           Force the binary to run even if there are known
+                           issues regarding consensus. Not recommended.
+                           (default: {flag_no_consensus}).
+  --force-direct           Run the originally installed version of Parity,
+                           ignoring any updates that have since been installed.
   --chain CHAIN            Specify the blockchain type. CHAIN may be either a
                            JSON chain specification file or olympic, frontier,
                            homestead, mainnet, morden, ropsten, classic, expanse,
                            testnet or dev (default: {flag_chain}).
-  -d --db-path PATH        Specify the database & configuration directory path
+  -d --base-path PATH      Specify the base data storage path.
+                           (default: {flag_base_path}).
+  --db-path PATH           Specify the database directory path
                            (default: {flag_db_path}).
   --keys-path PATH         Specify the path for JSON key files to be found
                            (default: {flag_keys_path}).
@@ -339,6 +362,9 @@ Legacy Options:
   --extradata STRING       Equivalent to --extra-data STRING.
   --cache MB               Equivalent to --cache-size MB.
 
+Internal Options:
+  --can-restart            Executable will auto-restart if exiting with 69.  
+
 Miscellaneous Options:
   -c --config CONFIG       Specify a filename containing a configuration file.
                            (default: {flag_config})

parity/configuration.rs

@@ -23,7 +23,7 @@ use cli::{Args, ArgsError};
 use util::{Hashable, U256, Uint, Bytes, version_data, Secret, Address};
 use util::log::Colour;
 use ethsync::{NetworkConfiguration, is_valid_node_url, AllowIP};
-use ethcore::client::VMType;
+use ethcore::client::{VMType};
 use ethcore::miner::{MinerOptions, Banning};
 use ethcore::verification::queue::VerifierSettings;
 
@@ -34,9 +34,10 @@ use helpers::{to_duration, to_mode, to_block_id, to_u256, to_pending_set, to_pri
 geth_ipc_path, parity_ipc_path, to_bootnodes, to_addresses, to_address, to_gas_limit, to_queue_strategy};
 use params::{ResealPolicy, AccountsConfig, GasPricerConfig, MinerExtras};
 use ethcore_logger::Config as LogConfig;
-use dir::Directories;
+use dir::{Directories, default_hypervisor_path};
 use dapps::Configuration as DappsConfiguration;
 use signer::{Configuration as SignerConfiguration};
+use updater::{UpdatePolicy, UpdateFilter, ReleaseTrack};
 use run::RunCmd;
 use blockchain::{BlockchainCmd, ImportBlockchain, ExportBlockchain, KillBlockchain, ExportState, DataFormat};
 use presale::ImportWallet;
@@ -99,6 +100,7 @@ impl Configuration {
 		let pruning_history = self.args.flag_pruning_history;
 		let vm_type = try!(self.vm_type());
 		let mode = match self.args.flag_mode.as_ref() { "last" => None, mode => Some(try!(to_mode(&mode, self.args.flag_mode_timeout, self.args.flag_mode_alarm))), };
+		let update_policy = try!(self.update_policy());
 		let miner_options = try!(self.miner_options());
 		let logger_config = self.logger_config();
 		let http_conf = try!(self.http_config());
@@ -320,6 +322,7 @@ impl Configuration {
 				acc_conf: try!(self.accounts_config()),
 				gas_pricer: try!(self.gas_pricer_config()),
 				miner_extras: try!(self.miner_extras()),
+				update_policy: update_policy,
 				mode: mode,
 				tracing: tracing,
 				fat_db: fat_db,
@@ -589,7 +592,7 @@ impl Configuration {
 		ret.snapshot_peers = self.snapshot_peers();
 		ret.allow_ips = try!(self.allow_ips());
 		ret.max_pending_peers = self.max_pending_peers();
-		let mut net_path = PathBuf::from(self.directories().data);
+		let mut net_path = PathBuf::from(self.directories().base);
 		net_path.push("network");
 		ret.config_path = Some(net_path.to_str().unwrap().to_owned());
 		ret.reserved_nodes = try!(self.init_reserved_nodes());
@@ -680,11 +683,34 @@ impl Configuration {
 		}
 	}
 
+	fn update_policy(&self) -> Result<UpdatePolicy, String> {
+		Ok(UpdatePolicy {
+			enable_downloading: !self.args.flag_no_download,
+			require_consensus: !self.args.flag_no_consensus,
+			filter: match self.args.flag_auto_update.as_ref() {
+				"none" => UpdateFilter::None,
+				"critical" => UpdateFilter::Critical,
+				"all" => UpdateFilter::All,
+				_ => return Err("Invalid value for `--auto-update`. See `--help` for more information.".into()), 
+			},
+			track: match self.args.flag_release_track.as_ref() {
+				"stable" => ReleaseTrack::Stable,
+				"beta" => ReleaseTrack::Beta,
+				"nightly" => ReleaseTrack::Nightly,
+				"testing" => ReleaseTrack::Testing,
+				"current" => ReleaseTrack::Unknown,
+				_ => return Err("Invalid value for `--releases-track`. See `--help` for more information.".into()), 
+			},
+			path: default_hypervisor_path(),
+		})
+	}
+
 	fn directories(&self) -> Directories {
 		use util::path;
 
-		let data_path = replace_home("", self.args.flag_datadir.as_ref().unwrap_or(&self.args.flag_db_path));
+		let data_path = replace_home("", self.args.flag_datadir.as_ref().unwrap_or(&self.args.flag_base_path));
 
+		let db_path = replace_home(&data_path, &self.args.flag_db_path);
 		let keys_path = replace_home(&data_path, &self.args.flag_keys_path);
 		let dapps_path = replace_home(&data_path, &self.args.flag_dapps_path);
 		let ui_path = replace_home(&data_path, &self.args.flag_ui_path);
@@ -706,7 +732,8 @@ impl Configuration {
 
 		Directories {
 			keys: keys_path,
-			data: data_path,
+			base: data_path,
+			db: db_path,
 			dapps: dapps_path,
 			signer: ui_path,
 		}
@@ -716,7 +743,7 @@ impl Configuration {
 		if self.args.flag_geth {
 			geth_ipc_path(self.args.flag_testnet)
 		} else {
-			parity_ipc_path(&self.directories().data, &self.args.flag_ipcpath.clone().unwrap_or(self.args.flag_ipc_path.clone()))
+			parity_ipc_path(&self.directories().base, &self.args.flag_ipcpath.clone().unwrap_or(self.args.flag_ipc_path.clone()))
 		}
 	}
 
@@ -786,13 +813,14 @@ mod tests {
 	use ethcore::miner::{MinerOptions, PrioritizationStrategy};
 	use helpers::{default_network_config};
 	use run::RunCmd;
-	use dir::Directories;
+	use dir::{Directories, default_hypervisor_path};
 	use signer::{Configuration as SignerConfiguration};
 	use blockchain::{BlockchainCmd, ImportBlockchain, ExportBlockchain, DataFormat, ExportState};
 	use presale::ImportWallet;
 	use params::SpecType;
 	use account::{AccountCmd, NewAccount, ImportAccounts, ListAccounts};
 	use devtools::{RandomTempPath};
+	use updater::{UpdatePolicy, UpdateFilter, ReleaseTrack};
 	use std::io::Write;
 	use std::fs::{File, create_dir};
 
@@ -986,6 +1014,7 @@ mod tests {
 			acc_conf: Default::default(),
 			gas_pricer: Default::default(),
 			miner_extras: Default::default(),
+			update_policy: UpdatePolicy { enable_downloading: true, require_consensus: true, filter: UpdateFilter::Critical, track: ReleaseTrack::Unknown, path: default_hypervisor_path() },
 			mode: Default::default(),
 			tracing: Default::default(),
 			compaction: Default::default(),
@@ -1029,6 +1058,21 @@ mod tests {
 		assert_eq!(conf3.miner_options().unwrap(), mining_options);
 	}
 
+	#[test]
+	fn should_parse_updater_options() {
+		// when
+		let conf0 = parse(&["parity", "--release-track=testing"]);
+		let conf1 = parse(&["parity", "--auto-update", "all", "--no-consensus"]);
+		let conf2 = parse(&["parity", "--no-download", "--auto-update=all", "--release-track=beta"]);
+		let conf3 = parse(&["parity", "--auto-update=xxx"]);
+
+		// then
+		assert_eq!(conf0.update_policy().unwrap(), UpdatePolicy{enable_downloading: true, require_consensus: true, filter: UpdateFilter::Critical, track: ReleaseTrack::Testing, path: default_hypervisor_path()});
+		assert_eq!(conf1.update_policy().unwrap(), UpdatePolicy{enable_downloading: true, require_consensus: false, filter: UpdateFilter::All, track: ReleaseTrack::Unknown, path: default_hypervisor_path()});
+		assert_eq!(conf2.update_policy().unwrap(), UpdatePolicy{enable_downloading: false, require_consensus: true, filter: UpdateFilter::All, track: ReleaseTrack::Beta, path: default_hypervisor_path()});
+		assert!(conf3.update_policy().is_err());
+	}
+
 	#[test]
 	fn should_parse_network_settings() {
 		// given

parity/dapps.rs

@@ -43,7 +43,7 @@ impl Default for Configuration {
 			hosts: Some(Vec::new()),
 			user: None,
 			pass: None,
-			dapps_path: replace_home(&data_dir, "$DATA/dapps"),
+			dapps_path: replace_home(&data_dir, "$BASE/dapps"),
 		}
 	}
 }

parity/dir.rs

@@ -27,7 +27,8 @@ const LEGACY_CLIENT_DB_VER_STR: &'static str = "5.3";
 
 #[derive(Debug, PartialEq)]
 pub struct Directories {
-	pub data: String,
+	pub base: String,
+	pub db: String,
 	pub keys: String,
 	pub signer: String,
 	pub dapps: String,
@@ -37,17 +38,19 @@ impl Default for Directories {
 	fn default() -> Self {
 		let data_dir = default_data_path();
 		Directories {
-			data: replace_home(&data_dir, "$DATA"),
+			base: replace_home(&data_dir, "$BASE"),
-			keys: replace_home(&data_dir, "$DATA/keys"),
+			db: replace_home(&data_dir, "$BASE/chains"),
-			signer: replace_home(&data_dir, "$DATA/signer"),
+			keys: replace_home(&data_dir, "$BASE/keys"),
-			dapps: replace_home(&data_dir, "$DATA/dapps"),
+			signer: replace_home(&data_dir, "$BASE/signer"),
+			dapps: replace_home(&data_dir, "$BASE/dapps"),
 		}
 	}
 }
 
 impl Directories {
 	pub fn create_dirs(&self, dapps_enabled: bool, signer_enabled: bool) -> Result<(), String> {
-		try!(fs::create_dir_all(&self.data).map_err(|e| e.to_string()));
+		try!(fs::create_dir_all(&self.base).map_err(|e| e.to_string()));
+		try!(fs::create_dir_all(&self.db).map_err(|e| e.to_string()));
 		try!(fs::create_dir_all(&self.keys).map_err(|e| e.to_string()));
 		if signer_enabled {
 			try!(fs::create_dir_all(&self.signer).map_err(|e| e.to_string()));
@@ -61,7 +64,8 @@ impl Directories {
 	/// Database paths.
 	pub fn database(&self, genesis_hash: H256, fork_name: Option<String>, spec_name: String) -> DatabaseDirectories {
 		DatabaseDirectories {
-			path: self.data.clone(),
+			path: self.db.clone(),
+			legacy_path: self.base.clone(),
 			genesis_hash: genesis_hash,
 			fork_name: fork_name,
 			spec_name: spec_name,
@@ -70,14 +74,14 @@ impl Directories {
 
 	/// Get the ipc sockets path
 	pub fn ipc_path(&self) -> PathBuf {
-		let mut dir = Path::new(&self.data).to_path_buf();
+		let mut dir = Path::new(&self.base).to_path_buf();
 		dir.push("ipc");
 		dir
 	}
 
 	// TODO: remove in 1.7
 	pub fn legacy_keys_path(&self, testnet: bool) -> PathBuf {
-		let mut dir = Path::new(&self.data).to_path_buf();
+		let mut dir = Path::new(&self.base).to_path_buf();
 		if testnet {
 			dir.push("testnet_keys");
 		} else {
@@ -96,6 +100,7 @@ impl Directories {
 #[derive(Debug, PartialEq)]
 pub struct DatabaseDirectories {
 	pub path: String,
+	pub legacy_path: String,
 	pub genesis_hash: H256,
 	pub fork_name: Option<String>,
 	pub spec_name: String,
@@ -105,14 +110,13 @@ impl DatabaseDirectories {
 	/// Base DB directory for the given fork.
 	// TODO: remove in 1.7
 	pub fn legacy_fork_path(&self) -> PathBuf {
-		let mut dir = Path::new(&self.path).to_path_buf();
+		let mut dir = Path::new(&self.legacy_path).to_path_buf();
 		dir.push(format!("{:?}{}", H64::from(self.genesis_hash), self.fork_name.as_ref().map(|f| format!("-{}", f)).unwrap_or_default()));
 		dir
 	}
 
 	pub fn spec_root_path(&self) -> PathBuf {
 		let mut dir = Path::new(&self.path).to_path_buf();
-		dir.push("chains");
 		dir.push(&self.spec_name);
 		dir
 	}
@@ -195,6 +199,11 @@ pub fn default_data_path() -> String {
 	get_app_root(AppDataType::UserData, &app_info).map(|p| p.to_string_lossy().into_owned()).unwrap_or_else(|_| "$HOME/.parity".to_owned())
 }
 
+pub fn default_hypervisor_path() -> String {
+	let app_info = AppInfo { name: "parity-hypervisor", author: "parity" };
+	get_app_root(AppDataType::UserData, &app_info).map(|p| p.to_string_lossy().into_owned()).unwrap_or_else(|_| "$HOME/.parity-hypervisor".to_owned())
+}
+
 #[cfg(test)]
 mod tests {
 	use super::Directories;
@@ -204,10 +213,11 @@ mod tests {
 	fn test_default_directories() {
 		let data_dir = super::default_data_path();
 		let expected = Directories {
-			data: replace_home(&data_dir, "$DATA"),
+			base: replace_home(&data_dir, "$BASE"),
-			keys: replace_home(&data_dir, "$DATA/keys"),
+			db: replace_home(&data_dir, "$BASE/chains"),
-			signer: replace_home(&data_dir, "$DATA/signer"),
+			keys: replace_home(&data_dir, "$BASE/keys"),
-			dapps: replace_home(&data_dir, "$DATA/dapps"),
+			signer: replace_home(&data_dir, "$BASE/signer"),
+			dapps: replace_home(&data_dir, "$BASE/dapps"),
 		};
 		assert_eq!(expected, Directories::default());
 	}

parity/helpers.rs

@@ -135,7 +135,7 @@ pub fn to_price(s: &str) -> Result<f32, String> {
 pub fn replace_home(base: &str, arg: &str) -> String {
 	// the $HOME directory on mac os should be `~/Library` or `~/Library/Application Support`
 	let r = arg.replace("$HOME", env::home_dir().unwrap().to_str().unwrap());
-	let r = r.replace("$DATA", base	);
+	let r = r.replace("$BASE", base	);
 	r.replace("/", &::std::path::MAIN_SEPARATOR.to_string()	)
 }
 
@@ -188,7 +188,7 @@ pub fn to_bootnodes(bootnodes: &Option<String>) -> Result<Vec<String>, String> {
 pub fn default_network_config() -> ::ethsync::NetworkConfiguration {
 	use ethsync::{NetworkConfiguration, AllowIP};
 	NetworkConfiguration {
-		config_path: Some(replace_home(&::dir::default_data_path(), "$DATA/network")),
+		config_path: Some(replace_home(&::dir::default_data_path(), "$BASE/network")),
 		net_config_path: None,
 		listen_address: Some("0.0.0.0:30303".into()),
 		public_address: None,
@@ -257,12 +257,13 @@ pub fn to_client_config(
 }
 
 pub fn execute_upgrades(
+	base_path: &str,
 	dirs: &DatabaseDirectories,
 	pruning: Algorithm,
 	compaction_profile: CompactionProfile
 ) -> Result<(), String> {
 
-	upgrade_data_paths(dirs, pruning);
+	upgrade_data_paths(base_path, dirs, pruning);
 
 	match upgrade(Some(&dirs.path)) {
 		Ok(upgrades_applied) if upgrades_applied > 0 => {

parity/informant.rs

@@ -19,12 +19,14 @@ use self::ansi_term::Colour::{White, Yellow, Green, Cyan, Blue};
 use self::ansi_term::Style;
 
 use std::sync::{Arc};
-use std::sync::atomic::{AtomicUsize, Ordering as AtomicOrdering};
+use std::sync::atomic::{AtomicUsize, AtomicBool, Ordering as AtomicOrdering};
 use std::time::{Instant, Duration};
+use io::{TimerToken, IoContext, IoHandler};
 use isatty::{stdout_isatty};
 use ethsync::{SyncProvider, ManageNetwork};
 use util::{Uint, RwLock, Mutex, H256, Colour, Bytes};
 use ethcore::client::*;
+use ethcore::service::ClientIoMessage;
 use ethcore::views::BlockView;
 use ethcore::snapshot::service::Service as SnapshotService;
 use ethcore::snapshot::{RestorationStatus, SnapshotService as SS};
@@ -44,6 +46,7 @@ pub struct Informant {
 	last_import: Mutex<Instant>,
 	skipped: AtomicUsize,
 	skipped_txs: AtomicUsize,
+	in_shutdown: AtomicBool,
 }
 
 /// Format byte counts to standard denominations.
@@ -82,9 +85,14 @@ impl Informant {
 			last_import: Mutex::new(Instant::now()),
 			skipped: AtomicUsize::new(0),
 			skipped_txs: AtomicUsize::new(0),
+			in_shutdown: AtomicBool::new(false),
 		}
 	}
 
+	/// Signal that we're shutting down; no more output necessary.
+	pub fn shutdown(&self) {
+		self.in_shutdown.store(true, ::std::sync::atomic::Ordering::SeqCst);
+	}
 
 	#[cfg_attr(feature="dev", allow(match_bool))]
 	pub fn tick(&self) {
@@ -221,3 +229,16 @@ impl ChainNotify for Informant {
 	}
 }
 
+const INFO_TIMER: TimerToken = 0;
+
+impl IoHandler<ClientIoMessage> for Informant {
+	fn initialize(&self, io: &IoContext<ClientIoMessage>) {
+		io.register_timer(INFO_TIMER, 5000).expect("Error registering timer");
+	}
+
+	fn timeout(&self, _io: &IoContext<ClientIoMessage>, timer: TimerToken) {
+		if timer == INFO_TIMER && !self.in_shutdown.load(AtomicOrdering::SeqCst) {
+			self.tick();
+		}
+	}
+}

parity/io_handler.rs

@@ -1,64 +0,0 @@
-// Copyright 2015, 2016 Parity Technologies (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/>.
-
-use std::sync::Arc;
-use std::sync::atomic::{AtomicBool, Ordering};
-use ethcore::client::Client;
-use ethcore::service::ClientIoMessage;
-use ethsync::{SyncProvider, ManageNetwork};
-use ethcore::account_provider::AccountProvider;
-use io::{TimerToken, IoHandler, IoContext};
-
-use informant::Informant;
-
-const INFO_TIMER: TimerToken = 0;
-
-pub struct ClientIoHandler {
-	pub client: Arc<Client>,
-	pub sync: Arc<SyncProvider>,
-	pub net: Arc<ManageNetwork>,
-	pub accounts: Arc<AccountProvider>,
-	pub info: Arc<Informant>,
-	pub shutdown: Arc<AtomicBool>
-}
-
-impl IoHandler<ClientIoMessage> for ClientIoHandler {
-	fn initialize(&self, io: &IoContext<ClientIoMessage>) {
-		io.register_timer(INFO_TIMER, 5000).expect("Error registering timer");
-	}
-
-	fn timeout(&self, _io: &IoContext<ClientIoMessage>, timer: TimerToken) {
-		if timer == INFO_TIMER && !self.shutdown.load(Ordering::SeqCst) {
-			self.info.tick();
-		}
-	}
-}
-
-pub struct ImportIoHandler {
-	pub info: Arc<Informant>,
-}
-
-impl IoHandler<ClientIoMessage> for ImportIoHandler {
-	fn initialize(&self, io: &IoContext<ClientIoMessage>) {
-		io.register_timer(INFO_TIMER, 5000).expect("Error registering timer");
-	}
-
-	fn timeout(&self, _io: &IoContext<ClientIoMessage>, timer: TimerToken) {
-		if let INFO_TIMER = timer {
-			self.info.tick()
-		}
-	}
-}

parity/main.rs

@@ -42,13 +42,14 @@ extern crate ethcore_ipc_nano as nanoipc;
 extern crate serde;
 extern crate serde_json;
 extern crate rlp;
-extern crate ethcore_hash_fetch as hash_fetch;
 extern crate ethcore_light as light;
+extern crate parity_hash_fetch as hash_fetch;
 
 extern crate ethcore_ipc_hypervisor as hypervisor;
 extern crate ethcore_rpc;
 
 extern crate ethcore_signer;
+extern crate parity_updater as updater;
 extern crate ansi_term;
 
 extern crate regex;
@@ -90,7 +91,6 @@ mod upgrade;
 mod rpc;
 mod dapps;
 mod informant;
-mod io_handler;
 mod cli;
 mod configuration;
 mod migration;
@@ -117,13 +117,16 @@ mod user_defaults;
 mod stratum;
 
 use std::{process, env};
-use std::io::{self as stdio, BufReader, Write};
+use std::collections::HashMap;
+use std::io::{self as stdio, BufReader, Read, Write};
 use std::fs::File;
+use std::path::PathBuf;
 use util::sha3::sha3;
 use cli::Args;
 use configuration::{Cmd, Execute, Configuration};
 use deprecated::find_deprecated;
 use ethcore_logger::setup_log;
+use dir::default_hypervisor_path;
 
 fn print_hash_of(maybe_file: Option<String>) -> Result<String, String> {
 	if let Some(file) = maybe_file {
@@ -135,31 +138,34 @@ fn print_hash_of(maybe_file: Option<String>) -> Result<String, String> {
 	}
 }
 
-fn execute(command: Execute) -> Result<String, String> {
+enum PostExecutionAction {
+	Print(String),
+	Restart,
+	Quit,
+}
+
+fn execute(command: Execute, can_restart: bool) -> Result<PostExecutionAction, String> {
 	let logger = setup_log(&command.logger).expect("Logger is initialized only once; qed");
 
 	match command.cmd {
 		Cmd::Run(run_cmd) => {
-			try!(run::execute(run_cmd, logger));
+			let restart = run::execute(run_cmd, can_restart, logger)?;
-			Ok("".into())
+			Ok(if restart { PostExecutionAction::Restart } else { PostExecutionAction::Quit })
 		},
-		Cmd::Version => Ok(Args::print_version()),
+		Cmd::Version => Ok(PostExecutionAction::Print(Args::print_version())),
-		Cmd::Hash(maybe_file) => print_hash_of(maybe_file),
+		Cmd::Hash(maybe_file) => print_hash_of(maybe_file).map(|s| PostExecutionAction::Print(s)),
-		Cmd::Account(account_cmd) => account::execute(account_cmd),
+		Cmd::Account(account_cmd) => account::execute(account_cmd).map(|s| PostExecutionAction::Print(s)),
-		Cmd::ImportPresaleWallet(presale_cmd) => presale::execute(presale_cmd),
+		Cmd::ImportPresaleWallet(presale_cmd) => presale::execute(presale_cmd).map(|s| PostExecutionAction::Print(s)),
-		Cmd::Blockchain(blockchain_cmd) => blockchain::execute(blockchain_cmd),
+		Cmd::Blockchain(blockchain_cmd) => blockchain::execute(blockchain_cmd).map(|_| PostExecutionAction::Quit),
-		Cmd::SignerToken(signer_cmd) => signer::execute(signer_cmd),
+		Cmd::SignerToken(signer_cmd) => signer::execute(signer_cmd).map(|s| PostExecutionAction::Print(s)),
-		Cmd::SignerSign { id, pwfile, port, authfile } =>
+		Cmd::SignerSign { id, pwfile, port, authfile } => rpc_cli::signer_sign(id, pwfile, port, authfile).map(|s| PostExecutionAction::Print(s)),
-			rpc_cli::cmd_signer_sign(id, pwfile, port, authfile),
+		Cmd::SignerList { port, authfile } => rpc_cli::signer_list(port, authfile).map(|s| PostExecutionAction::Print(s)),
-		Cmd::SignerList { port, authfile } =>
+		Cmd::SignerReject { id, port, authfile } => rpc_cli::signer_reject(id, port, authfile).map(|s| PostExecutionAction::Print(s)),
-			rpc_cli::cmd_signer_list(port, authfile),
+		Cmd::Snapshot(snapshot_cmd) => snapshot::execute(snapshot_cmd).map(|s| PostExecutionAction::Print(s)),
-		Cmd::SignerReject { id, port, authfile } =>
-			rpc_cli::cmd_signer_reject(id, port, authfile),
-		Cmd::Snapshot(snapshot_cmd) => snapshot::execute(snapshot_cmd),
 	}
 }
 
-fn start() -> Result<String, String> {
+fn start(can_restart: bool) -> Result<PostExecutionAction, String> {
 	let args: Vec<String> = env::args().collect();
 	let conf = Configuration::parse(&args).unwrap_or_else(|e| e.exit());
 
@@ -169,61 +175,118 @@ fn start() -> Result<String, String> {
 	}
 
 	let cmd = try!(conf.into_command());
-	execute(cmd)
+	execute(cmd, can_restart)
-}
-
-#[cfg(feature="stratum")]
-mod stratum_optional {
-	pub fn probably_run() -> bool {
-		// just redirect to the stratum::main()
-		if ::std::env::args().nth(1).map_or(false, |arg| arg == "stratum") {
-			super::stratum::main();
-			true
-		}
-		else { false }
-	}
 }
 
 #[cfg(not(feature="stratum"))]
-mod stratum_optional {
+fn stratum_main(_: &mut HashMap<String, fn()>) {}
-	pub fn probably_run() -> bool {
+
-		false
+#[cfg(feature="stratum")]
-	}
+fn stratum_main(alt_mains: &mut HashMap<String, fn()>) {
+	alt_mains.insert("stratum".to_owned(), stratum::main);
 }
 
 #[cfg(not(feature="ipc"))]
-fn sync_main() -> bool {
+fn sync_main(_: &mut HashMap<String, fn()>) {}
-	false
-}
 
 #[cfg(feature="ipc")]
-fn sync_main() -> bool {
+fn sync_main(alt_mains: &mut HashMap<String, fn()>) {
-	// just redirect to the sync::main()
+	alt_mains.insert("sync".to_owned(), sync::main);
-	if std::env::args().nth(1).map_or(false, |arg| arg == "sync") {
+}
-		sync::main();
+
-		true
+fn updates_path(name: &str) -> PathBuf {
+	let mut dest = PathBuf::from(default_hypervisor_path());
+	dest.push(name);
+	dest
+}
+
+fn latest_exe_path() -> Option<PathBuf> {
+	File::open(updates_path("latest")).ok()
+		.and_then(|mut f| { let mut exe = String::new(); f.read_to_string(&mut exe).ok().map(|_| updates_path(&exe)) })
+} 
+
+// Starts ~/.parity-updates/parity and returns the code it exits with.
+fn run_parity() -> Option<i32> {
+	use ::std::ffi::OsString;
+	let prefix = vec![OsString::from("--can-restart"), OsString::from("--force-direct")];
+	latest_exe_path().and_then(|exe| process::Command::new(exe)
+		.args(&(env::args_os().chain(prefix.into_iter()).collect::<Vec<_>>()))
+		.status()
+		.map(|es| es.code().unwrap_or(128))
+		.ok()
+	)
+}
+
+const PLEASE_RESTART_EXIT_CODE: i32 = 69;
+
+// Run our version of parity.
+// Returns the exit error code. 
+fn main_direct(can_restart: bool) -> i32 {
+	let mut alt_mains = HashMap::new();
+	sync_main(&mut alt_mains);
+	stratum_main(&mut alt_mains);
+	if let Some(f) = std::env::args().nth(1).and_then(|arg| alt_mains.get(&arg.to_string())) {
+		f();
+		0
 	} else {
-		false
+		match start(can_restart) {
+			Ok(result) => match result {
+				PostExecutionAction::Print(s) => { println!("{}", s); 0 },
+				PostExecutionAction::Restart => PLEASE_RESTART_EXIT_CODE,
+				PostExecutionAction::Quit => 0,
+			},
+			Err(err) => {
+				writeln!(&mut stdio::stderr(), "{}", err).expect("StdErr available; qed");
+				1
+			},
+		}
 	}
 }
 
+fn println_trace_main(s: String) {
+	if env::var("RUST_LOG").ok().and_then(|s| s.find("main=trace")).is_some() {
+		println!("{}", s);
+	}
+}
+
+#[macro_export]
+macro_rules! trace_main {
+	($arg:expr) => (println_trace_main($arg.into()));
+	($($arg:tt)*) => (println_trace_main(format!("{}", format_args!($($arg)*))));
+}
+
 fn main() {
 	// Always print backtrace on panic.
-	::std::env::set_var("RUST_BACKTRACE", "1");
+	env::set_var("RUST_BACKTRACE", "1");
 
-	if sync_main() {
+	// assuming the user is not running with `--force-direct`, then:
-		return;
+	// if argv[0] == "parity" and this executable != ~/.parity-updates/parity, run that instead.
-	}
+	let force_direct = std::env::args().any(|arg| arg == "--force-direct");
-
+	let exe = std::env::current_exe().ok();
-	if stratum_optional::probably_run() { return; }
+	let development = exe.as_ref().and_then(|p| p.parent().and_then(|p| p.parent()).and_then(|p| p.file_name()).map(|n| n == "target")).unwrap_or(false);
-
+	let same_name = exe.as_ref().map(|p| p.file_stem().map_or(false, |s| s == "parity") && p.extension().map_or(true, |x| x == "exe")).unwrap_or(false);
-	match start() {
+	let latest_exe = latest_exe_path();
-		Ok(result) => {
+	let have_update = latest_exe.as_ref().map_or(false, |p| p.exists());
-			info!("{}", result);
+	let is_non_updated_current = exe.map_or(false, |exe| latest_exe.as_ref().map_or(false, |lexe| exe.canonicalize().ok() != lexe.canonicalize().ok()));
-		},
+	trace_main!("Starting up {} (force-direct: {}, development: {}, same-name: {}, have-update: {}, non-updated-current: {})", std::env::current_exe().map(|x| format!("{}", x.display())).unwrap_or("<unknown>".to_owned()), force_direct, development, same_name, have_update, is_non_updated_current);
-		Err(err) => {
+	if !force_direct && !development && same_name && have_update && is_non_updated_current {
-			writeln!(&mut stdio::stderr(), "{}", err).expect("StdErr available; qed");
+		// looks like we're not running ~/.parity-updates/parity when the user is expecting otherwise.
-			process::exit(1);
+		// Everything run inside a loop, so we'll be able to restart from the child into a new version seamlessly. 
+		loop {
+			// If we fail to run the updated parity then fallback to local version. 
+			trace_main!("Attempting to run latest update ({})...", latest_exe.as_ref().expect("guarded by have_update; latest_exe must exist for have_update; qed").display());
+			let exit_code = run_parity().unwrap_or_else(|| { trace_main!("Falling back to local..."); main_direct(true) });
+			trace_main!("Latest exited with {}", exit_code);
+			if exit_code != PLEASE_RESTART_EXIT_CODE {
+				trace_main!("Quitting...");
+				process::exit(exit_code);
+			}
+			trace_main!("Rerunning...");
 		}
+	} else {
+		trace_main!("Running direct");
+		// Otherwise, we're presumably running the version we want. Just run and fall-through.
+		let can_restart = std::env::args().any(|arg| arg == "--can-restart");
+		process::exit(main_direct(can_restart));
 	}
 }

parity/rpc.rs

@@ -62,7 +62,7 @@ impl Default for IpcConfiguration {
 		let data_dir = default_data_path();
 		IpcConfiguration {
 			enabled: true,
-			socket_addr: parity_ipc_path(&data_dir, "$DATA/jsonrpc.ipc"),
+			socket_addr: parity_ipc_path(&data_dir, "$BASE/jsonrpc.ipc"),
 			apis: ApiSet::IpcContext,
 		}
 	}

parity/rpc_apis.rs

@@ -27,7 +27,7 @@ use ethcore::snapshot::SnapshotService;
 use ethsync::{ManageNetwork, SyncProvider};
 use ethcore_rpc::{Extendable, NetworkSettings};
 pub use ethcore_rpc::SignerService;
-
+use updater::Updater;
 
 #[derive(Debug, PartialEq, Clone, Eq, Hash)]
 pub enum Api {
@@ -118,6 +118,7 @@ pub struct Dependencies {
 	pub logger: Arc<RotatingLogger>,
 	pub settings: Arc<NetworkSettings>,
 	pub net_service: Arc<ManageNetwork>,
+	pub updater: Arc<Updater>,
 	pub geth_compatibility: bool,
 	pub dapps_interface: Option<String>,
 	pub dapps_port: Option<u16>,
@@ -224,6 +225,7 @@ pub fn setup_rpc<T: Extendable>(server: T, deps: Arc<Dependencies>, apis: ApiSet
 					&deps.client,
 					&deps.miner,
 					&deps.sync,
+					&deps.updater,
 					&deps.net_service,
 					&deps.secret_store,
 					deps.logger.clone(),
@@ -240,7 +242,7 @@ pub fn setup_rpc<T: Extendable>(server: T, deps: Arc<Dependencies>, apis: ApiSet
 				server.add_delegate(ParityAccountsClient::new(&deps.secret_store, &deps.client).to_delegate());
 			},
 			Api::ParitySet => {
-				server.add_delegate(ParitySetClient::new(&deps.client, &deps.miner, &deps.net_service).to_delegate())
+				server.add_delegate(ParitySetClient::new(&deps.client, &deps.miner, &deps.updater, &deps.net_service).to_delegate())
 			},
 			Api::Traces => {
 				server.add_delegate(TracesClient::new(&deps.client, &deps.miner).to_delegate())

parity/run.rs

@@ -14,16 +14,16 @@
 // 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::sync::{Arc, Mutex, Condvar};
+use std::sync::Arc;
 use std::net::{TcpListener};
 use ctrlc::CtrlC;
 use fdlimit::raise_fd_limit;
 use ethcore_rpc::{NetworkSettings, is_major_importing};
 use ethsync::NetworkConfiguration;
-use util::{Colour, version, RotatingLogger};
+use util::{Colour, version, RotatingLogger, Mutex, Condvar};
 use io::{MayPanic, ForwardPanic, PanicHandler};
 use ethcore_logger::{Config as LogConfig};
-use ethcore::client::{Mode, DatabaseCompactionProfile, VMType, ChainNotify, BlockChainClient};
+use ethcore::client::{Mode, DatabaseCompactionProfile, VMType, BlockChainClient};
 use ethcore::service::ClientService;
 use ethcore::account_provider::AccountProvider;
 use ethcore::miner::{Miner, MinerService, ExternalMiner, MinerOptions};
@@ -31,11 +31,11 @@ use ethcore::snapshot;
 use ethcore::verification::queue::VerifierSettings;
 use ethsync::SyncConfig;
 use informant::Informant;
+use updater::{UpdatePolicy, Updater};
 
 use rpc::{HttpServer, IpcServer, HttpConfiguration, IpcConfiguration};
 use signer::SignerServer;
 use dapps::WebappServer;
-use io_handler::ClientIoHandler;
 use params::{
 	SpecType, Pruning, AccountsConfig, GasPricerConfig, MinerExtras, Switch,
 	tracing_switch_to_bool, fatdb_switch_to_bool, mode_switch_to_bool
@@ -77,6 +77,7 @@ pub struct RunCmd {
 	pub acc_conf: AccountsConfig,
 	pub gas_pricer: GasPricerConfig,
 	pub miner_extras: MinerExtras,
+	pub update_policy: UpdatePolicy,
 	pub mode: Option<Mode>,
 	pub tracing: Switch,
 	pub fat_db: Switch,
@@ -115,12 +116,12 @@ pub fn open_ui(dapps_conf: &dapps::Configuration, signer_conf: &signer::Configur
 	Ok(())
 }
 
-pub fn execute(cmd: RunCmd, logger: Arc<RotatingLogger>) -> Result<(), String> {
+pub fn execute(cmd: RunCmd, can_restart: bool, logger: Arc<RotatingLogger>) -> Result<bool, String> {
 	if cmd.ui && cmd.dapps_conf.enabled {
 		// Check if Parity is already running
 		let addr = format!("{}:{}", cmd.dapps_conf.interface, cmd.dapps_conf.port);
 		if !TcpListener::bind(&addr as &str).is_ok() {
-			return open_ui(&cmd.dapps_conf, &cmd.signer_conf);
+			return open_ui(&cmd.dapps_conf, &cmd.signer_conf).map(|_| false);
 		}
 	}
 
@@ -159,12 +160,15 @@ pub fn execute(cmd: RunCmd, logger: Arc<RotatingLogger>) -> Result<(), String> {
 	trace!(target: "mode", "mode is {:?}", mode);
 	let network_enabled = match mode { Mode::Dark(_) | Mode::Off => false, _ => true, };
 
+	// get the update policy
+	let update_policy = cmd.update_policy;
+
 	// prepare client and snapshot paths.
 	let client_path = db_dirs.client_path(algorithm);
 	let snapshot_path = db_dirs.snapshot_path();
 
 	// execute upgrades
-	try!(execute_upgrades(&db_dirs, algorithm, cmd.compaction.compaction_profile(db_dirs.db_root_path().as_path())));
+	try!(execute_upgrades(&cmd.dirs.base, &db_dirs, algorithm, cmd.compaction.compaction_profile(db_dirs.db_root_path().as_path())));
 
 	// create dirs used by parity
 	try!(cmd.dirs.create_dirs(cmd.dapps_conf.enabled, cmd.signer_conf.enabled));
@@ -307,6 +311,10 @@ pub fn execute(cmd: RunCmd, logger: Arc<RotatingLogger>) -> Result<(), String> {
 		chain_notify.start();
 	}
 
+	// the updater service
+	let updater = Updater::new(Arc::downgrade(&(service.client() as Arc<BlockChainClient>)), Arc::downgrade(&sync_provider), update_policy);
+	service.add_notify(updater.clone());
+
 	// set up dependencies for rpc servers
 	let signer_path = cmd.signer_conf.signer_path.clone();
 	let deps_for_rpc_apis = Arc::new(rpc_apis::Dependencies {
@@ -323,6 +331,7 @@ pub fn execute(cmd: RunCmd, logger: Arc<RotatingLogger>) -> Result<(), String> {
 		logger: logger.clone(),
 		settings: Arc::new(cmd.net_settings.clone()),
 		net_service: manage_network.clone(),
+		updater: updater.clone(),
 		geth_compatibility: cmd.geth_compatibility,
 		dapps_interface: match cmd.dapps_conf.enabled {
 			true => Some(cmd.dapps_conf.interface.clone()),
@@ -343,24 +352,23 @@ pub fn execute(cmd: RunCmd, logger: Arc<RotatingLogger>) -> Result<(), String> {
 	let http_server = try!(rpc::new_http(cmd.http_conf, &dependencies));
 	let ipc_server = try!(rpc::new_ipc(cmd.ipc_conf, &dependencies));
 
+	// the dapps server
 	let dapps_deps = dapps::Dependencies {
 		panic_handler: panic_handler.clone(),
 		apis: deps_for_rpc_apis.clone(),
 		client: client.clone(),
 		sync: sync_provider.clone(),
 	};
-
-	// start dapps server
 	let dapps_server = try!(dapps::new(cmd.dapps_conf.clone(), dapps_deps));
 
+	// the signer server
 	let signer_deps = signer::Dependencies {
 		panic_handler: panic_handler.clone(),
 		apis: deps_for_rpc_apis.clone(),
 	};
-
-	// start signer server
 	let signer_server = try!(signer::start(cmd.signer_conf.clone(), signer_deps));
 
+	// the informant
 	let informant = Arc::new(Informant::new(
 		service.client(),
 		Some(sync_provider.clone()),
@@ -368,17 +376,8 @@ pub fn execute(cmd: RunCmd, logger: Arc<RotatingLogger>) -> Result<(), String> {
 		Some(snapshot_service.clone()),
 		cmd.logger_config.color
 	));
-	let info_notify: Arc<ChainNotify> = informant.clone();
+	service.add_notify(informant.clone());
-	service.add_notify(info_notify);
+	service.register_io_handler(informant.clone()).map_err(|_| "Unable to register informant handler".to_owned())?;
-	let io_handler = Arc::new(ClientIoHandler {
-		client: service.client(),
-		info: informant,
-		sync: sync_provider.clone(),
-		net: manage_network.clone(),
-		accounts: account_provider.clone(),
-		shutdown: Default::default(),
-	});
-	service.register_io_handler(io_handler.clone()).expect("Error registering IO handler");
 
 	// save user defaults
 	user_defaults.pruning = algorithm;
@@ -387,13 +386,11 @@ pub fn execute(cmd: RunCmd, logger: Arc<RotatingLogger>) -> Result<(), String> {
 	user_defaults.mode = mode;
 	try!(user_defaults.save(&user_defaults_path));
 
-	let on_mode_change = move |mode: &Mode| {
+	// tell client how to save the default mode if it gets changed.
+	client.on_mode_change(move |mode: &Mode| {
 		user_defaults.mode = mode.clone();
 		let _ = user_defaults.save(&user_defaults_path);	// discard failures - there's nothing we can do
-	};
+	});
-
-	// tell client how to save the default mode if it gets changed.
-	client.on_mode_change(on_mode_change);
 
 	// the watcher must be kept alive.
 	let _watcher = match cmd.no_periodic_snapshot {
@@ -419,18 +416,20 @@ pub fn execute(cmd: RunCmd, logger: Arc<RotatingLogger>) -> Result<(), String> {
 	}
 
 	// Handle exit
-	wait_for_exit(panic_handler, http_server, ipc_server, dapps_server, signer_server);
+	let restart = wait_for_exit(panic_handler, http_server, ipc_server, dapps_server, signer_server, updater, can_restart);
+
+	info!("Finishing work, please wait...");
 
 	// to make sure timer does not spawn requests while shutdown is in progress
-	io_handler.shutdown.store(true, ::std::sync::atomic::Ordering::SeqCst);
+	informant.shutdown();
 	// just Arc is dropping here, to allow other reference release in its default time
-	drop(io_handler);
+	drop(informant);
 
 	// hypervisor should be shutdown first while everything still works and can be
 	// terminated gracefully
 	drop(hypervisor);
 
-	Ok(())
+	Ok(restart)
 }
 
 #[cfg(not(windows))]
@@ -438,11 +437,11 @@ fn daemonize(pid_file: String) -> Result<(), String> {
 	extern crate daemonize;
 
 	daemonize::Daemonize::new()
-			.pid_file(pid_file)
+		.pid_file(pid_file)
-			.chown_pid_file(true)
+		.chown_pid_file(true)
-			.start()
+		.start()
-			.map(|_| ())
+		.map(|_| ())
-			.map_err(|e| format!("Couldn't daemonize; {}", e))
+		.map_err(|e| format!("Couldn't daemonize; {}", e))
 }
 
 #[cfg(windows)]
@@ -475,20 +474,30 @@ fn wait_for_exit(
 	_http_server: Option<HttpServer>,
 	_ipc_server: Option<IpcServer>,
 	_dapps_server: Option<WebappServer>,
-	_signer_server: Option<SignerServer>
+	_signer_server: Option<SignerServer>,
-	) {
+	updater: Arc<Updater>,
-	let exit = Arc::new(Condvar::new());
+	can_restart: bool
+) -> bool {
+	let exit = Arc::new((Mutex::new(false), Condvar::new()));
 
 	// Handle possible exits
 	let e = exit.clone();
-	CtrlC::set_handler(move || { e.notify_all(); });
+	CtrlC::set_handler(move || { e.1.notify_all(); });
 
 	// Handle panics
 	let e = exit.clone();
-	panic_handler.on_panic(move |_reason| { e.notify_all(); });
+	panic_handler.on_panic(move |_reason| { e.1.notify_all(); });
+
+	// Handle updater wanting to restart us
+	if can_restart {
+		let e = exit.clone();
+		updater.set_exit_handler(move || { *e.0.lock() = true; e.1.notify_all(); });
+	} else {
+		updater.set_exit_handler(|| info!("Update installed; ready for restart."));
+	}
 
 	// Wait for signal
-	let mutex = Mutex::new(());
+	let mut l = exit.0.lock();
-	let _ = exit.wait(mutex.lock().unwrap());
+	let _ = exit.1.wait(&mut l);
-	info!("Finishing work, please wait...");
+	*l
 }

parity/signer.rs

@@ -44,7 +44,7 @@ impl Default for Configuration {
 			enabled: true,
 			port: 8180,
 			interface: "127.0.0.1".into(),
-			signer_path: replace_home(&data_dir, "$DATA/signer"),
+			signer_path: replace_home(&data_dir, "$BASE/signer"),
 			skip_origin_validation: false,
 		}
 	}

parity/snapshot.rs

@@ -167,7 +167,7 @@ impl SnapshotCommand {
 		let snapshot_path = db_dirs.snapshot_path();
 
 		// execute upgrades
-		try!(execute_upgrades(&db_dirs, algorithm, self.compaction.compaction_profile(db_dirs.db_root_path().as_path())));
+		try!(execute_upgrades(&self.dirs.base, &db_dirs, algorithm, self.compaction.compaction_profile(db_dirs.db_root_path().as_path())));
 
 		// prepare client config
 		let client_config = to_client_config(&self.cache_config, Mode::Active, tracing, fat_db, self.compaction, self.wal, VMType::default(), "".into(), algorithm, self.pruning_history, true);

parity/upgrade.rs

@@ -200,11 +200,11 @@ fn upgrade_user_defaults(dirs: &DatabaseDirectories) {
 	}
 }
 
-pub fn upgrade_data_paths(dirs: &DatabaseDirectories, pruning: Algorithm) {
+pub fn upgrade_data_paths(base_path: &str, dirs: &DatabaseDirectories, pruning: Algorithm) {
 	let legacy_root_path = replace_home("", "$HOME/.parity");
 	let default_path = default_data_path();
-	if legacy_root_path != dirs.path && dirs.path == default_path {
+	if legacy_root_path != base_path && base_path == default_path {
-		upgrade_dir_location(&PathBuf::from(legacy_root_path), &PathBuf::from(&dirs.path));
+		upgrade_dir_location(&PathBuf::from(legacy_root_path), &PathBuf::from(&base_path));
 	}
 	upgrade_dir_location(&dirs.legacy_version_path(pruning), &dirs.db_path(pruning));
 	upgrade_dir_location(&dirs.legacy_snapshot_path(), &dirs.snapshot_path());

rpc/Cargo.toml

@@ -26,6 +26,7 @@ ethash = { path = "../ethash" }
 ethsync = { path = "../sync" }
 ethjson = { path = "../json" }
 ethcore-devtools = { path = "../devtools" }
+parity-updater = { path = "../updater" }
 rlp = { path = "../util/rlp" }
 fetch = { path = "../util/fetch" }
 rustc-serialize = "0.3"
@@ -34,6 +35,7 @@ serde_macros = { version = "0.8.0", optional = true }
 clippy = { version = "0.0.103", optional = true}
 ethcore-ipc = { path = "../ipc/rpc" }
 time = "0.1"
+semver = "0.5"
 
 [build-dependencies]
 serde_codegen = { version = "0.8.0", optional = true }

rpc/src/lib.rs

@@ -19,6 +19,7 @@
 #![cfg_attr(feature="nightly", feature(custom_derive, custom_attribute, plugin))]
 #![cfg_attr(feature="nightly", plugin(serde_macros, clippy))]
 
+extern crate semver;
 extern crate rustc_serialize;
 extern crate serde;
 extern crate serde_json;
@@ -37,6 +38,7 @@ extern crate ethcore_ipc;
 extern crate time;
 extern crate rlp;
 extern crate fetch;
+extern crate parity_updater as updater;
 
 #[macro_use]
 extern crate log;

rpc/src/v1/impls/parity.rs

@@ -30,6 +30,7 @@ use ethcore::miner::MinerService;
 use ethcore::client::{MiningBlockChainClient};
 use ethcore::mode::Mode;
 use ethcore::account_provider::AccountProvider;
+use updater::{Service as UpdateService};
 
 use jsonrpc_core::Error;
 use jsonrpc_macros::Trailing;
@@ -38,20 +39,23 @@ use v1::types::{
 	Bytes, U256, H160, H256, H512,
 	Peers, Transaction, RpcSettings, Histogram,
 	TransactionStats, LocalTransactionStatus,
-	BlockNumber,
+	BlockNumber, ConsensusCapability, VersionInfo,
+	OperationsInfo
 };
 use v1::helpers::{errors, SigningQueue, SignerService, NetworkSettings};
 use v1::helpers::dispatch::DEFAULT_MAC;
 
 /// Parity implementation.
-pub struct ParityClient<C, M, S: ?Sized> where
+pub struct ParityClient<C, M, S: ?Sized, U> where
 	C: MiningBlockChainClient,
 	M: MinerService,
 	S: SyncProvider,
+	U: UpdateService,
 {
 	client: Weak<C>,
 	miner: Weak<M>,
 	sync: Weak<S>,
+	updater: Weak<U>,
 	net: Weak<ManageNetwork>,
 	accounts: Weak<AccountProvider>,
 	logger: Arc<RotatingLogger>,
@@ -61,16 +65,18 @@ pub struct ParityClient<C, M, S: ?Sized> where
 	dapps_port: Option<u16>,
 }
 
-impl<C, M, S: ?Sized> ParityClient<C, M, S> where
+impl<C, M, S: ?Sized, U> ParityClient<C, M, S, U> where
 	C: MiningBlockChainClient,
 	M: MinerService,
 	S: SyncProvider,
+	U: UpdateService,
 {
 	/// Creates new `ParityClient`.
 	pub fn new(
 		client: &Arc<C>,
 		miner: &Arc<M>,
 		sync: &Arc<S>,
+		updater: &Arc<U>,
 		net: &Arc<ManageNetwork>,
 		store: &Arc<AccountProvider>,
 		logger: Arc<RotatingLogger>,
@@ -83,6 +89,7 @@ impl<C, M, S: ?Sized> ParityClient<C, M, S> where
 			client: Arc::downgrade(client),
 			miner: Arc::downgrade(miner),
 			sync: Arc::downgrade(sync),
+			updater: Arc::downgrade(updater),
 			net: Arc::downgrade(net),
 			accounts: Arc::downgrade(store),
 			logger: logger,
@@ -100,10 +107,11 @@ impl<C, M, S: ?Sized> ParityClient<C, M, S> where
 	}
 }
 
-impl<C, M, S: ?Sized> Parity for ParityClient<C, M, S> where
+impl<C, M, S: ?Sized, U> Parity for ParityClient<C, M, S, U> where
 	M: MinerService + 'static,
 	C: MiningBlockChainClient + 'static,
-	S: SyncProvider + 'static {
+	S: SyncProvider + 'static,
+	U: UpdateService + 'static {
 
 	fn transactions_limit(&self) -> Result<usize, Error> {
 		try!(self.active());
@@ -359,4 +367,22 @@ impl<C, M, S: ?Sized> Parity for ParityClient<C, M, S> where
 			(format!("0x{}", a.hex()), m)
 		}).collect())
 	}
+
+	fn consensus_capability(&self) -> Result<ConsensusCapability, Error> {
+		try!(self.active());
+		let updater = take_weak!(self.updater);
+		Ok(updater.capability().into())
+	}
+
+	fn version_info(&self) -> Result<VersionInfo, Error> {
+		try!(self.active());
+		let updater = take_weak!(self.updater);
+		Ok(updater.version_info().into())
+	}
+
+	fn releases_info(&self) -> Result<Option<OperationsInfo>, Error> {
+		try!(self.active());
+		let updater = take_weak!(self.updater);
+		Ok(updater.info().map(Into::into))
+	}
 }

rpc/src/v1/impls/parity_set.rs

@@ -24,45 +24,51 @@ use ethcore::mode::Mode;
 use ethsync::ManageNetwork;
 use fetch::{Client as FetchClient, Fetch};
 use util::{Mutex, sha3};
+use updater::{Service as UpdateService};
 
 use jsonrpc_core::Error;
 use jsonrpc_macros::Ready;
 use v1::helpers::errors;
 use v1::traits::ParitySet;
-use v1::types::{Bytes, H160, H256, U256};
+use v1::types::{Bytes, H160, H256, U256, ReleaseInfo};
 
 /// Parity-specific rpc interface for operations altering the settings.
-pub struct ParitySetClient<C, M, F=FetchClient> where
+pub struct ParitySetClient<C, M, U, F=FetchClient> where
 	C: MiningBlockChainClient,
 	M: MinerService,
+	U: UpdateService,
 	F: Fetch,
 {
 	client: Weak<C>,
 	miner: Weak<M>,
+	updater: Weak<U>,
 	net: Weak<ManageNetwork>,
 	fetch: Mutex<F>,
 }
 
-impl<C, M> ParitySetClient<C, M, FetchClient> where
+impl<C, M, U> ParitySetClient<C, M, U, FetchClient> where
 	C: MiningBlockChainClient,
-	M: MinerService
+	M: MinerService,
+	U: UpdateService,
 {
 	/// Creates new `ParitySetClient` with default `FetchClient`.
-	pub fn new(client: &Arc<C>, miner: &Arc<M>, net: &Arc<ManageNetwork>) -> Self {
+	pub fn new(client: &Arc<C>, miner: &Arc<M>, updater: &Arc<U>, net: &Arc<ManageNetwork>) -> Self {
-		Self::with_fetch(client, miner, net)
+		Self::with_fetch(client, miner, updater, net)
 	}
 }
 
-impl<C, M, F> ParitySetClient<C, M, F> where
+impl<C, M, U, F> ParitySetClient<C, M, U, F> where
 	C: MiningBlockChainClient,
 	M: MinerService,
+	U: UpdateService,
 	F: Fetch,
 {
 	/// Creates new `ParitySetClient` with default `FetchClient`.
-	pub fn with_fetch(client: &Arc<C>, miner: &Arc<M>, net: &Arc<ManageNetwork>) -> Self {
+	pub fn with_fetch(client: &Arc<C>, miner: &Arc<M>, updater: &Arc<U>, net: &Arc<ManageNetwork>) -> Self {
 		ParitySetClient {
 			client: Arc::downgrade(client),
 			miner: Arc::downgrade(miner),
+			updater: Arc::downgrade(updater),
 			net: Arc::downgrade(net),
 			fetch: Mutex::new(F::default()),
 		}
@@ -75,9 +81,10 @@ impl<C, M, F> ParitySetClient<C, M, F> where
 	}
 }
 
-impl<C, M, F> ParitySet for ParitySetClient<C, M, F> where
+impl<C, M, U, F> ParitySet for ParitySetClient<C, M, U, F> where
 	C: MiningBlockChainClient + 'static,
 	M: MinerService + 'static,
+	U: UpdateService + 'static,
 	F: Fetch + 'static,
 {
 
@@ -230,4 +237,16 @@ impl<C, M, F> ParitySet for ParitySetClient<C, M, F> where
 			}
 		}
 	}
+
+	fn upgrade_ready(&self) -> Result<Option<ReleaseInfo>, Error> {
+		try!(self.active());
+		let updater = take_weak!(self.updater);
+		Ok(updater.upgrade_ready().map(Into::into))
+	}
+
+	fn execute_upgrade(&self) -> Result<bool, Error> {
+		try!(self.active());
+		let updater = take_weak!(self.updater);
+		Ok(updater.execute_upgrade())
+	}
 }

rpc/src/v1/tests/helpers/mod.rs

@@ -20,8 +20,10 @@ mod sync_provider;
 mod miner_service;
 mod fetch;
 mod snapshot_service;
+mod update_service;
 
 pub use self::sync_provider::{Config, TestSyncProvider};
 pub use self::miner_service::TestMinerService;
 pub use self::fetch::TestFetch;
 pub use self::snapshot_service::TestSnapshotService;
+pub use self::update_service::TestUpdater;

rpc/src/v1/tests/helpers/update_service.rs

@@ -0,0 +1,97 @@
+// Copyright 2015, 2016 Parity Technologies (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/>.
+
+//! Test implementation of fetch client.
+
+use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
+use semver::Version;
+use updater::{Service as UpdateService, CapState, ReleaseInfo, VersionInfo, OperationsInfo, ReleaseTrack};
+
+/// Test implementation of fetcher. Will always return the same file.
+#[derive(Default)]
+pub struct TestUpdater {
+	updated: AtomicBool,
+	current_block: AtomicUsize,
+}
+
+impl TestUpdater {
+	/// Update the (faked) current block.
+	pub fn set_current_block(&self, n: usize) {
+		self.current_block.store(n, Ordering::Relaxed);
+	}
+
+	/// Update the (faked) current block.
+	pub fn set_updated(&self, v: bool) {
+		self.updated.store(v, Ordering::Relaxed);
+	}
+}
+
+impl UpdateService for TestUpdater {
+	fn capability(&self) -> CapState {
+		if self.updated.load(Ordering::Relaxed) {
+			CapState::Capable
+		} else {
+			if self.current_block.load(Ordering::Relaxed) < 15100 {
+				CapState::CapableUntil(15100)
+			} else {
+				CapState::IncapableSince(15100)
+			}
+		}
+	}
+
+	fn upgrade_ready(&self) -> Option<ReleaseInfo> {
+		if self.updated.load(Ordering::Relaxed) {
+			None
+		} else {
+			self.info().map(|i| i.track)
+		}
+	}
+
+	fn execute_upgrade(&self) -> bool {
+		if self.updated.load(Ordering::Relaxed) {
+			false
+		} else {
+			self.updated.store(true, Ordering::Relaxed);
+			true
+		}
+	}
+
+	fn version_info(&self) -> VersionInfo {
+		VersionInfo {
+			track: ReleaseTrack::Beta,
+			version: Version{major: 1, minor: 5, patch: 0, build: vec![], pre: vec![]},
+			hash: 150.into(),
+		}
+	}
+
+	fn info(&self) -> Option<OperationsInfo> {
+		Some(OperationsInfo {
+			fork: 15100,
+			this_fork: Some(15000),
+			track: ReleaseInfo {
+				version: VersionInfo {
+					track: ReleaseTrack::Beta,
+					version: Version{major: 1, minor: 5, patch: 1, build: vec![], pre: vec![]},
+					hash: 151.into(),
+				},
+				is_critical: true,
+				fork: 15100,
+				binary: Some(1510.into()),
+			},
+			minor: None,
+		})
+	}
+}