add cache back in

apps/cic-cache/.config/bancor.ini

@@ -0,0 +1,2 @@
+[bancor]
+dir =

apps/cic-cache/.config/cic.ini

@@ -0,0 +1,2 @@
+[cic]
+registry_address = 

apps/cic-cache/.config/database.ini

@@ -0,0 +1,8 @@
+[database]
+NAME=cic-eth
+USER=postgres
+PASSWORD=
+HOST=localhost
+PORT=5432
+ENGINE=postgresql
+DRIVER=psycopg2

apps/cic-cache/.config/eth.ini

@@ -0,0 +1,6 @@
+[eth]
+provider = ws://localhost:8545
+#ttp_provider = http://localhost:8545
+#provider = http://localhost:8545
+gas_provider_address = 
+#chain_id = 

apps/cic-cache/.config/test/bancor.ini

@@ -0,0 +1,2 @@
+[bancor]
+dir =

apps/cic-cache/.config/test/cic.ini

@@ -0,0 +1,2 @@
+[cic]
+registry_address = 

apps/cic-cache/.config/test/database.ini

@@ -0,0 +1,8 @@
+[database]
+NAME=cic-cache-test
+USER=postgres
+PASSWORD=
+HOST=localhost
+PORT=5432
+ENGINE=sqlite
+DRIVER=pysqlite

apps/cic-cache/.config/test/eth.ini

@@ -0,0 +1,5 @@
+[eth]
+#ws_provider = ws://localhost:8546
+#ttp_provider = http://localhost:8545
+provider = http://localhost:8545
+#chain_id = 

apps/cic-cache/.coveragerc

@@ -0,0 +1,5 @@
+[report]
+omit = 
+	.venv/*
+	scripts/*
+	cic_cache/db/postgres/*

apps/cic-cache/.envrc_example

@@ -0,0 +1,7 @@
+set -a
+CICTEST_DATABASE_ENGINE=postgresql
+CICTEST_DATABASE_DRIVER=psycopg2
+CICTEST_DATABASE_HOST=localhost
+CICTEST_DATABASE_PORT=5432
+CICTEST_DATABASE_NAME=cic-eth-test
+set +a

apps/cic-cache/.gitignore

@@ -0,0 +1,8 @@
+.envrc
+.envrc_dev
+.venv
+__pycache__
+*.pyc
+_build
+doc/**/*.png
+doc/**/html

apps/cic-cache/.gitlab-ci.yml

@@ -0,0 +1,42 @@
+image: docker:19.03.13
+
+variables:
+  # docker host
+  DOCKER_HOST: tcp://docker:2376
+  # container, thanks to volume mount from config.toml
+  DOCKER_TLS_CERTDIR: "/certs"
+  # These are usually specified by the entrypoint, however the
+  # Kubernetes executor doesn't run entrypoints
+  # https://gitlab.com/gitlab-org/gitlab-runner/-/issues/4125
+  DOCKER_TLS_VERIFY: 1
+  DOCKER_CERT_PATH: "$DOCKER_TLS_CERTDIR/client"
+
+services:
+  - docker:19.03.13-dind
+
+before_script:
+  - docker info
+
+build_merge_request:
+  stage: build
+  rules:
+    - if: $CI_PIPELINE_SOURCE == "merge_request_event"
+      when: always
+  script:
+    - docker build -t $CI_PROJECT_PATH_SLUG:$CI_COMMIT_SHORT_SHA .
+
+build_image:
+  stage: build
+  variables:
+    IMAGE_TAG: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG-$CI_COMMIT_SHORT_SHA
+  before_script:
+    - docker login -u $CI_DEPLOY_USER -p $CI_DEPLOY_PASSWORD $CI_REGISTRY
+  script:
+    - echo "$CI_REGISTRY_PASSWORD" | docker login -u "$CI_REGISTRY_USER" $CI_REGISTRY --password-stdin
+    - docker build -t $IMAGE_TAG . 
+    - docker push $IMAGE_TAG
+    - docker tag $IMAGE_TAG $LATEST_TAG
+    - docker push $LATEST_TAG
+  only:
+    - master
+

apps/cic-cache/CHANGELOG

@@ -0,0 +1,11 @@
+- 0.1.1
+	* Add missing modules to setup 
+- 0.1.0
+	* Remove old APIs
+	* Add bloom filter output APIs for all txs and per-account txs
+- 0.0.2
+	* UWSGI server endpoint example
+	* OpenAPI spec
+	* stored procedures, test fixture for database schema
+- 0.0.1
+	* Add json translators of transaction_list and balances stored procedure queries

apps/cic-cache/Dockerfile

@@ -0,0 +1,39 @@
+FROM registry.gitlab.com/grassrootseconomics/cic-bancor:master-07951c84 
+
+ARG pip_extra_index_url_flag='--extra-index-url https://pip.grassrootseconomics.net:8433'
+
+RUN apk add postgresql-dev linux-headers git
+# RUN apk add linux-headers
+
+WORKDIR /usr/src
+
+RUN mkdir -vp cic-cache
+
+COPY requirements.txt cic-cache/
+COPY setup.* cic-cache/
+COPY cic_cache/ cic-cache/cic_cache/
+COPY scripts/ cic-cache/scripts/
+RUN cd cic-cache && \
+	pip install $pip_extra_index_url_flag .
+
+RUN cd cic-cache && \
+	pip install .[server]
+
+COPY tests/ cic-cache/tests/
+#COPY db/ cic-cache/db
+#RUN apk add postgresql-client
+
+# ini files in config directory defines the configurable parameters for the application
+# they can all be overridden by environment variables
+# to generate a list of environment variables from configuration, use: confini-dump -z <dir> (executable provided by confini package)
+COPY .config/ /usr/local/etc/cic-cache/
+
+# for db migrations
+RUN git clone https://github.com/vishnubob/wait-for-it.git /usr/local/bin/wait-for-it/
+COPY cic_cache/db/migrations/ /usr/local/share/cic-cache/alembic/
+
+
+# Tracker
+# ENTRYPOINT ["/usr/local/bin/cic-cache-tracker", "-vv"]
+# Server
+# ENTRYPOINT [ "/usr/local/bin/uwsgi", "--wsgi-file", "/usr/local/lib/python3.8/site-packages/cic_cache/runnable/server.py", "--http", ":80", "--pyargv", "-vv" ]

apps/cic-cache/cic_cache/__init__.py

@@ -0,0 +1 @@
+from .cache import BloomCache

apps/cic-cache/cic_cache/cache.py

@@ -0,0 +1,89 @@
+# standard imports
+import logging
+
+# third-party imports
+import moolb
+
+# local imports
+from cic_cache.db import list_transactions_mined
+from cic_cache.db import list_transactions_account_mined
+
+logg = logging.getLogger()
+
+
+class BloomCache:
+
+
+    def __init__(self, session):
+        self.session = session
+
+    @staticmethod
+    def __get_filter_size(n):
+        n = 8192 * 8
+        logg.warning('filter size hardcoded to {}'.format(n))
+        return n
+
+
+    def load_transactions(self, offset, limit):
+        """Retrieves a list of transactions from cache and creates a bloom filter pointing to blocks and transactions.
+
+        Block and transaction numbers are serialized as 32-bit big-endian numbers. The input to the second bloom filter is the concatenation of the serialized block number and transaction index.
+
+        For example, if the block number is 13 and the transaction index is 42, the input are:
+
+        block filter:       0x0d000000
+        block+tx filter:    0x0d0000002a0000000
+
+        :param offset: Offset in data set to return transactions from
+        :type offset: int
+        :param limit: Max number of transactions to retrieve
+        :type limit: int
+        :return: Lowest block, bloom filter for blocks, bloom filter for blocks|tx
+        :rtype: tuple
+        """
+        rows = list_transactions_mined(self.session, offset, limit) 
+
+        f_block = moolb.Bloom(BloomCache.__get_filter_size(limit), 3)
+        f_blocktx = moolb.Bloom(BloomCache.__get_filter_size(limit), 3)
+        highest_block = -1
+        lowest_block = -1
+        for r in rows:
+            if highest_block == -1:
+                highest_block = r[0]
+            lowest_block = r[0]
+            block = r[0].to_bytes(4, byteorder='big')
+            tx = r[1].to_bytes(4, byteorder='big')
+            f_block.add(block)
+            f_blocktx.add(block + tx)
+            logg.debug('added block {} tx {} lo {} hi {}'.format(r[0], r[1], lowest_block, highest_block))
+        return (lowest_block, highest_block, f_block.to_bytes(), f_blocktx.to_bytes(),)
+
+
+    def load_transactions_account(self, address, offset, limit):
+        """Same as load_transactions(...), but only retrieves transactions where the specified account address is sender or recipient.
+
+        :param address: Address to retrieve transactions for.
+        :type address: str, 0x-hex
+        :param offset: Offset in data set to return transactions from
+        :type offset: int
+        :param limit: Max number of transactions to retrieve
+        :type limit: int
+        :return: Lowest block, bloom filter for blocks, bloom filter for blocks|tx
+        :rtype: tuple
+        """
+        rows = list_transactions_account_mined(self.session, address, offset, limit) 
+
+        f_block = moolb.Bloom(BloomCache.__get_filter_size(limit), 3)
+        f_blocktx = moolb.Bloom(BloomCache.__get_filter_size(limit), 3)
+        highest_block = -1;
+        lowest_block = -1;
+        for r in rows:
+            if highest_block == -1:
+                highest_block = r[0]
+            lowest_block = r[0]
+            block = r[0].to_bytes(4, byteorder='big')
+            tx = r[1].to_bytes(4, byteorder='big')
+            f_block.add(block)
+            f_blocktx.add(block + tx)
+            logg.debug('added block {} tx {} lo {} hi {}'.format(r[0], r[1], lowest_block, highest_block))
+        return (lowest_block, highest_block, f_block.to_bytes(), f_blocktx.to_bytes(),)

apps/cic-cache/cic_cache/db/__init__.py

@@ -0,0 +1,35 @@
+# standard imports
+import logging
+
+# local imports
+from .list import list_transactions_mined
+from .list import list_transactions_account_mined
+from .list import add_transaction
+
+logg = logging.getLogger()
+
+
+def dsn_from_config(config):
+    scheme = config.get('DATABASE_ENGINE')
+    if config.get('DATABASE_DRIVER') != None:
+        scheme += '+{}'.format(config.get('DATABASE_DRIVER'))
+
+    dsn = ''
+    if config.get('DATABASE_ENGINE') == 'sqlite':
+        dsn = '{}:///{}'.format(
+                scheme,
+                config.get('DATABASE_NAME'),    
+            )
+
+    else:
+        dsn = '{}://{}:{}@{}:{}/{}'.format(
+                scheme,
+                config.get('DATABASE_USER'),
+                config.get('DATABASE_PASSWORD'),
+                config.get('DATABASE_HOST'),
+                config.get('DATABASE_PORT'),
+                config.get('DATABASE_NAME'),    
+            )
+    logg.debug('parsed dsn from config: {}'.format(dsn))
+    return dsn
+

apps/cic-cache/cic_cache/db/list.py

@@ -0,0 +1,56 @@
+# standard imports
+import logging
+import datetime
+
+# third-party imports
+from cic_cache.db.models.base import SessionBase
+
+logg = logging.getLogger()
+
+
+def list_transactions_mined(session, offset, limit):
+    """Executes db query to return all confirmed transactions according to the specified offset and limit.
+
+    :param offset: Offset in data set to return transactions from
+    :type offset: int
+    :param limit: Max number of transactions to retrieve
+    :type limit: int
+    :result: Result set
+    :rtype: SQLAlchemy.ResultProxy
+    """
+    s = "SELECT block_number, tx_index FROM tx ORDER BY block_number DESC, tx_index DESC LIMIT {} OFFSET {}".format(limit, offset)
+    r = session.execute(s)
+    return r
+
+
+def list_transactions_account_mined(session, address, offset, limit):
+    """Same as list_transactions_mined(...), but only retrieves transaction where the specified account address is sender or recipient.
+
+    :param address: Address to retrieve transactions for.
+    :type address: str, 0x-hex
+    :param offset: Offset in data set to return transactions from
+    :type offset: int
+    :param limit: Max number of transactions to retrieve
+    :type limit: int
+    :result: Result set
+    :rtype: SQLAlchemy.ResultProxy
+    """
+    s = "SELECT block_number, tx_index FROM tx WHERE sender = '{}' OR recipient = '{}' block_number DESC, tx_index DESC LIMIT {} OFFSET {}".format(address, address, limit, offset)
+    r = session.execute(s)
+    return r
+
+
+def add_transaction(session, tx_hash, block_number, tx_index, sender, receiver, source_token, destination_token, success, timestamp):
+    date_block = datetime.datetime.fromtimestamp(timestamp)
+    s = "INSERT INTO tx (tx_hash, block_number, tx_index, sender, recipient, source_token, destination_token, success, date_block) VALUES ('{}', {}, {}, '{}', '{}', '{}', '{}', {}, '{}')".format(
+            tx_hash,
+            block_number,
+            tx_index,
+            sender,
+            receiver,
+            source_token,
+            destination_token,
+            success,
+            date_block,
+            )
+    session.execute(s)

apps/cic-cache/cic_cache/db/migrations/default/README

@@ -0,0 +1 @@
+Generic single-database configuration.

apps/cic-cache/cic_cache/db/migrations/default/alembic.ini

@@ -0,0 +1,86 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = .
+
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# timezone to use when rendering the date
+# within the migration file as well as the filename.
+# string value is passed to dateutil.tz.gettz()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the
+# "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; this defaults
+# to ./versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path
+# version_locations = %(here)s/bar %(here)s/bat ./versions
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+#sqlalchemy.url = driver://user:pass@localhost/dbname
+sqlalchemy.url = postgresql+psycopg2://postgres@localhost:5432/cic-cache
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks=black
+# black.type=console_scripts
+# black.entrypoint=black
+# black.options=-l 79
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

apps/cic-cache/cic_cache/db/migrations/default/env.py

@@ -0,0 +1,77 @@
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = None
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

apps/cic-cache/cic_cache/db/migrations/default/script.py.mako

@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}

apps/cic-cache/cic_cache/db/migrations/default/versions/63b629f14a85_.py

@@ -0,0 +1,44 @@
+"""Base tables
+
+Revision ID: 63b629f14a85
+Revises: 
+Create Date: 2020-12-04 08:16:00.412189
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '63b629f14a85'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table(
+            'tx',
+            sa.Column('id', sa.Integer, primary_key=True),
+            sa.Column('date_registered', sa.DateTime, nullable=False),
+            sa.Column('block_number', sa.Integer, nullable=False),
+            sa.Column('tx_index', sa.Integer, nullable=False),
+            sa.Column('tx_hash', sa.String(66), nullable=False),
+            sa.Column('sender', sa.String(42), nullable=False),
+            sa.Column('recipient', sa.String(42), nullable=False),
+            sa.Column('source_token', sa.String(42), nullable=False),
+            sa.Column('recipient_token', sa.String(42), nullable=False),
+            sa.Column('success', sa.Boolean, nullable=False),
+            sa.Column('date_block', sa.DateTime, nullable=False),
+            )
+    op.create_table(
+            'tx_sync',
+            sa.Column('id', sa.Integer, primary_key=True),
+            sa.Column('tx', sa.String(66), nullable=False),
+            )
+
+    op.execute("INSERT INTO tx_sync (tx) VALUES('0x0000000000000000000000000000000000000000000000000000000000000000');")
+
+def downgrade():
+    op.drop_table('tx_sync')
+    op.drop_table('tx')

apps/cic-cache/cic_cache/db/models/base.py

@@ -0,0 +1,48 @@
+# third-party imports
+from sqlalchemy import Column, Integer
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+
+Model = declarative_base(name='Model')
+
+
+class SessionBase(Model):
+    __abstract__ = True
+ 
+    id = Column(Integer, primary_key=True)
+
+    engine = None
+    query = None
+    sessionmaker = None
+
+
+    @staticmethod
+    def create_session():
+        #SessionBase.session = session()
+        #return SessionBase.session
+        return SessionBase.sessionmaker()
+
+
+    @staticmethod
+    def _set_engine(engine):
+        SessionBase.engine = engine
+        SessionBase.sessionmaker = sessionmaker(bind=SessionBase.engine)
+
+
+    @staticmethod
+    def build():
+        Model.metadata.create_all(bind=SessionBase.engine)
+
+
+    @staticmethod
+    def connect(dsn):
+        e = create_engine(dsn)
+        SessionBase._set_engine(e)
+
+
+    @staticmethod
+    def disconnect():
+        SessionBase.engine.dispose()
+        SessionBase.session = None
+        SessionBase.engine = None

apps/cic-cache/cic_cache/runnable/server.py

@@ -0,0 +1,141 @@
+# standard imports
+import os
+import re
+import logging
+import argparse
+import json
+import base64
+
+# third-party imports
+import confini
+
+# local imports
+from cic_cache import BloomCache
+from cic_cache.db import dsn_from_config
+from cic_cache.db.models.base import SessionBase
+
+logging.basicConfig(level=logging.WARNING)
+logg = logging.getLogger()
+
+rootdir = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
+dbdir = os.path.join(rootdir, 'cic_eth', 'db')
+migrationsdir = os.path.join(dbdir, 'migrations')
+
+config_dir = os.path.join('/usr/local/etc/cic-cache')
+
+argparser = argparse.ArgumentParser()
+argparser.add_argument('-c', type=str, default=config_dir, help='config file')
+argparser.add_argument('--env-prefix', default=os.environ.get('CONFINI_ENV_PREFIX'), dest='env_prefix', type=str, help='environment prefix for variables to overwrite configuration')
+argparser.add_argument('-v', action='store_true', help='be verbose')
+argparser.add_argument('-vv', action='store_true', help='be more verbose')
+args = argparser.parse_args()
+
+if args.vv:
+    logging.getLogger().setLevel(logging.DEBUG)
+elif args.v:
+    logging.getLogger().setLevel(logging.INFO)
+
+config = confini.Config(args.c, args.env_prefix)
+config.process()
+config.censor('PASSWORD', 'DATABASE')
+config.censor('PASSWORD', 'SSL')
+logg.debug('config:\n{}'.format(config))
+
+dsn = dsn_from_config(config)
+SessionBase.connect(dsn)
+
+re_transactions_all_bloom = r'/tx/(\d+)?/?(\d+)/?'
+re_transactions_account_bloom = r'/tx/user/((0x)?[a-fA-F0-9]+)/?(\d+)?/?(\d+)/?'
+
+DEFAULT_LIMIT = 100
+
+
+def process_transactions_account_bloom(session, env):
+    r = re.match(re_transactions_account_bloom, env.get('PATH_INFO'))
+    if not r:
+        return None
+
+    address = r[1]
+    if r[2] == None:
+        address = '0x' + address
+    offset = DEFAULT_LIMIT
+    if r.lastindex > 2:
+        offset = r[3]
+    limit = 0
+    if r.lastindex > 3:
+        limit = r[4]
+
+    c = BloomCache(session)
+    (lowest_block, highest_block, bloom_filter_block, bloom_filter_tx) = c.load_transactions_account(address, offset, limit)
+
+    o = {
+        'alg': 'sha256',
+        'low': lowest_block,
+        'high': highest_block,
+        'block_filter': base64.b64encode(bloom_filter_block).decode('utf-8'),
+        'blocktx_filter': base64.b64encode(bloom_filter_tx).decode('utf-8'),
+        'filter_rounds': 3,
+            }
+
+    j = json.dumps(o)
+
+    return ('application/json', j.encode('utf-8'),)
+
+
+def process_transactions_all_bloom(session, env):
+    r = re.match(re_transactions_all_bloom, env.get('PATH_INFO'))
+    if not r:
+        return None
+
+    offset = DEFAULT_LIMIT
+    if r.lastindex > 0:
+        offset = r[1]
+    limit = 0
+    if r.lastindex > 1:
+        limit = r[2]
+
+    c = BloomCache(session)
+    (lowest_block, highest_block, bloom_filter_block, bloom_filter_tx) = c.load_transactions(offset, limit)
+
+    o = {
+        'alg': 'sha256',
+        'low': lowest_block,
+        'high': highest_block,
+        'block_filter': base64.b64encode(bloom_filter_block).decode('utf-8'),
+        'blocktx_filter': base64.b64encode(bloom_filter_tx).decode('utf-8'),
+        'filter_rounds': 3,
+            }
+
+    j = json.dumps(o)
+
+    return ('application/json', j.encode('utf-8'),)
+
+
+# uwsgi application
+def application(env, start_response):
+
+    headers = []
+    content = b''
+
+    session = SessionBase.create_session()
+    for handler in [
+            process_transactions_all_bloom,
+            process_transactions_account_bloom,
+            ]:
+        r = handler(session, env)
+        if r != None:
+            (mime_type, content) = r
+            break
+    session.close()
+
+    headers.append(('Content-Length', str(len(content))),)
+    headers.append(('Access-Control-Allow-Origin', '*',));
+
+    if len(content) == 0:
+        headers.append(('Content-Type', 'text/plain, charset=UTF-8',))
+        start_response('404 Looked everywhere, sorry', headers)
+    else:
+        headers.append(('Content-Type', mime_type,))
+        start_response('200 OK', headers)
+
+    return [content]

apps/cic-cache/cic_cache/runnable/tracker.py

@@ -0,0 +1,284 @@
+# standard imports
+import sys
+import os
+import argparse
+import logging
+import time
+import enum
+import re
+
+# third-party imports
+import confini
+from cic_registry import CICRegistry
+from cic_registry.bancor import BancorRegistry
+from cic_registry.token import Token
+from cic_registry.error import UnknownContractError
+from web3.exceptions import BlockNotFound, TransactionNotFound
+from websockets.exceptions import ConnectionClosedError
+from requests.exceptions import ConnectionError
+import web3
+from web3 import HTTPProvider, WebsocketProvider
+
+# local imports
+from cic_cache import db
+from cic_cache.db.models.base import SessionBase
+
+logging.basicConfig(level=logging.WARNING)
+logg = logging.getLogger()
+logging.getLogger('websockets.protocol').setLevel(logging.CRITICAL)
+logging.getLogger('web3.RequestManager').setLevel(logging.CRITICAL)
+logging.getLogger('web3.providers.WebsocketProvider').setLevel(logging.CRITICAL)
+logging.getLogger('web3.providers.HTTPProvider').setLevel(logging.CRITICAL)
+
+log_topics = {
+    'transfer': '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
+    'convert': '0x7154b38b5dd31bb3122436a96d4e09aba5b323ae1fd580025fab55074334c095',
+    }
+
+config_dir = os.path.join('/usr/local/etc/cic-cache')
+
+argparser = argparse.ArgumentParser(description='daemon that monitors transactions in new blocks')
+argparser.add_argument('-c', type=str, default=config_dir, help='config root to use')
+argparser.add_argument('--env-prefix', default=os.environ.get('CONFINI_ENV_PREFIX'), dest='env_prefix', type=str, help='environment prefix for variables to overwrite configuration')
+argparser.add_argument('-v', help='be verbose', action='store_true')
+argparser.add_argument('-vv', help='be more verbose', action='store_true')
+args = argparser.parse_args(sys.argv[1:])
+
+config_dir = os.path.join(args.c)
+os.makedirs(config_dir, 0o777, True)
+
+if args.v == True:
+    logging.getLogger().setLevel(logging.INFO)
+elif args.vv == True:
+    logging.getLogger().setLevel(logging.DEBUG)
+
+config = confini.Config(config_dir, args.env_prefix)
+config.process()
+config.censor('PASSWORD', 'DATABASE')
+config.censor('PASSWORD', 'SSL')
+logg.debug('config loaded from {}:\n{}'.format(config_dir, config))
+
+# connect to database
+dsn = db.dsn_from_config(config)
+SessionBase.connect(dsn)
+
+
+re_websocket = re.compile('^wss?://')
+re_http = re.compile('^https?://')
+blockchain_provider = config.get('ETH_PROVIDER')
+if re.match(re_websocket, blockchain_provider) != None:
+    blockchain_provider = WebsocketProvider(blockchain_provider)
+elif re.match(re_http, blockchain_provider) != None:
+    blockchain_provider = HTTPProvider(blockchain_provider)
+else:
+    raise ValueError('unknown provider url {}'.format(blockchain_provider))
+
+def web3_constructor():
+    w3 = web3.Web3(blockchain_provider)
+    return (blockchain_provider, w3)
+
+
+class RunStateEnum(enum.IntEnum):
+    INIT = 0
+    RUN = 1
+    TERMINATE = 9
+
+
+class Tracker:
+
+    def __init__(self):
+        self.block_height = 0
+        self.tx_height = 0
+        self.state = RunStateEnum.INIT
+
+
+    def refresh_registry(self, w3):
+        cr = CICRegistry.get_contract(CICRegistry.bancor_chain_spec, 'ConverterRegistry')
+        f = cr.function('getConvertibleTokens')
+        anchors = f().call()
+        # TODO: if there are other token sources, this number may not match anymore. The cache count method should be moved to bancorregistry object instead
+        r = CICRegistry.get_chain_registry(CICRegistry.bancor_chain_spec)
+        #logg.debug('anchors {} {}'.format(anchors, ContractRegistry.cache_token_count()))
+        if len(anchors) != r.cache_token_count():
+            logg.debug('token count mismatch, scanning')
+
+            for a in anchors:
+                if ContractRegistry.get_address(a) == None:
+                    abi = CICRegistry.abi('ERC20Token')
+                    #abi = ContractRegistry.contracts['ERC20Token'].contract.abi
+                    c = w3.eth.contract(address=a, abi=abi)
+                    t = ContractRegistry.add_token(a, c)
+                    logg.info('new token {} at {}'.format(t.symbol(), t.address))
+
+
+
+    def __process_tx(self, w3, session, t, r, l, b):
+        token_value = int(l.data, 16)
+        token_sender = l.topics[1][-20:].hex()
+        token_recipient = l.topics[2][-20:].hex()
+
+        ts = ContractRegistry.get_address(t.address)
+        logg.info('add token transfer {} value {} from {} to {}'.format(
+            ts.symbol(),
+            token_value,
+            token_sender,
+            token_recipient,
+            )
+            )
+
+        logg.debug('block', b)
+        db.add_transaction(
+                session,
+                r.transactionHash.hex(),
+                r.blockNumber,
+                r.transactionIndex,
+                w3.toChecksumAddress(token_sender),
+                w3.toChecksumAddress(token_recipient),
+                t.address,
+                t.address,
+                r.status == 1,
+                b.timestamp,
+                )
+        session.flush()
+
+
+    # TODO: simplify/ split up and/or comment, function is too long
+    def __process_convert(self, w3, session, t, r, l, b):
+        token_source = l.topics[2][-20:].hex()
+        token_source = w3.toChecksumAddress(token_source)
+        token_destination = l.topics[3][-20:].hex()
+        token_destination = w3.toChecksumAddress(token_destination)
+        data_noox = l.data[2:]
+        d = data_noox[:64]
+        token_from_value = int(d, 16)
+        d = data_noox[64:128]
+        token_to_value = int(d, 16)
+        token_trader = '0x' + data_noox[192-40:]
+
+        ts = ContractRegistry.get_address(token_source)
+        if ts == None:
+            ts = ContractRegistry.reserves[token_source]
+        td = ContractRegistry.get_address(token_destination)
+        if td == None:
+            td = ContractRegistry.reserves[token_source]
+        logg.info('add token convert {} -> {} value {} -> {} trader {}'.format(
+            ts.symbol(),
+            td.symbol(),
+            token_from_value,
+            token_to_value,
+            token_trader,
+            )
+            )
+
+        db.add_transaction(
+                session,
+                r.transactionHash.hex(),
+                r.blockNumber,
+                r.transactionIndex,
+                w3.toChecksumAddress(token_trader),
+                w3.toChecksumAddress(token_trader),
+                token_source,
+                token_destination,
+                r.status == 1,
+                b.timestamp,
+                )
+        session.flush()
+
+
+    def process(self, w3, session, block):
+        self.refresh_registry(w3)
+        tx_count = w3.eth.getBlockTransactionCount(block.hash)
+        b = w3.eth.getBlock(block.hash)
+        for i in range(self.tx_height, tx_count):
+            tx = w3.eth.getTransactionByBlock(block.hash, i)
+            t = None
+            try:
+                t = CICRegistry.get_address(CICRegistry.bancor_chain_spec, tx.to)
+            except UnknownContractError:
+                logg.debug('block {} tx {} not our contract, skipping'.format(block, i))
+                continue
+            logg.debug('block tx {} {}'.format(block.number, i))
+            if t != None and isinstance(t, Token):
+                r = w3.eth.getTransactionReceipt(tx.hash)
+                for l in r.logs:
+                    logg.info('{} token log {} {}'.format(tx.hash.hex(), l.logIndex, l.topics[0].hex()))
+                    if l.topics[0].hex() == log_topics['transfer']:
+                        self.__process_tx(w3, session, t, r, l, b)
+
+            elif tx.to == CICRegistry.get_contract(CICRegistry.bancor_chain_spec, 'BancorNetwork').address:
+                r = w3.eth.getTransactionReceipt(tx.hash)
+                for l in r.logs:
+                    logg.info('{} bancornetwork log {} {}'.format(tx.hash.hex(), l.logIndex, l.topics[0].hex()))
+                    if l.topics[0].hex() == log_topics['convert']:
+                        self.__process_convert(w3, session, t, r, l, b)
+            
+
+            session.execute("UPDATE tx_sync SET tx = '{}'".format(tx.hash.hex()))
+            session.commit()
+            self.tx_height += 1
+
+
+    def __get_next_retry(self, backoff=False):
+        return 1
+
+
+    def loop(self, bancor_registry):
+        logg.info('starting at block {} tx index {}'.format(self.block_height, self.tx_height))
+        self.state = RunStateEnum.RUN
+        while self.state == RunStateEnum.RUN:
+            (provider, w3) = web3_constructor()
+            session = SessionBase.create_session()
+            try:
+                block = w3.eth.getBlock(self.block_height)
+                self.process(w3, session, block)
+                self.block_height += 1
+                self.tx_height = 0
+            except BlockNotFound as e:
+                logg.debug('no block {} yet, zZzZ...'.format(self.block_height))
+                time.sleep(self.__get_next_retry())
+            except ConnectionClosedError as e:
+                logg.info('connection gone, retrying')
+                time.sleep(self.__get_next_retry(True))
+            except OSError as e:
+                logg.error('cannot connect {}'.format(e))
+                time.sleep(self.__get_next_retry(True))
+            except Exception as e:
+                session.close()
+                raise(e)
+            session.close()
+
+
+    def load(self, w3):
+        session = SessionBase.create_session()
+        r = session.execute('SELECT tx FROM tx_sync').first()
+        if r != None:
+            if r[0] == '0x{0:0{1}X}'.format(0, 64):
+                logg.debug('last tx was zero-address, starting from scratch')
+                return
+            t = w3.eth.getTransaction(r[0])
+            
+            self.block_height = t.blockNumber
+            self.tx_height = t.transactionIndex+1
+            c = w3.eth.getBlockTransactionCount(t.blockHash.hex())
+            logg.debug('last tx processed {} index {} (max index {})'.format(t.blockNumber, t.transactionIndex, c-1))
+            if c == self.tx_height:
+                self.block_height += 1
+                self.tx_height = 0
+        session.close()
+
+def main():
+    (provider, w3) = web3_constructor()
+    CICRegistry.finalize(w3, config.get('CIC_REGISTRY_ADDRESS'))
+    bancor_registry_contract = CICRegistry.get_contract(CICRegistry.bancor_chain_spec, 'BancorRegistry')
+    bancor_chain_registry = CICRegistry.get_chain_registry(CICRegistry.bancor_chain_spec)
+    bancor_registry = BancorRegistry(w3, bancor_chain_registry, bancor_registry_contract.address(), config.get('BANCOR_DIR'))
+    bancor_registry.load() 
+
+    #bancor.load(w3, config.get('BANCOR_REGISTRY_ADDRESS'), config.get('BANCOR_DIR'))
+
+    t = Tracker() 
+    t.load(w3)
+    t.loop(bancor_registry)
+                  
+if __name__ == '__main__':
+    main()

apps/cic-cache/db/initdb_files/create_all_db.sql

@@ -0,0 +1,5 @@
+CREATE DATABASE "cic-cache";
+CREATE DATABASE "cic-eth";
+CREATE DATABASE "cic-notify";
+CREATE DATABASE "cic-meta";
+CREATE DATABASE "cic-signer";

apps/cic-cache/db/psycopg2/db.sql

@@ -0,0 +1,20 @@
+CREATE TABLE tx (
+	id SERIAL PRIMARY KEY,
+	date_registered TIMESTAMP NOT NULL default CURRENT_TIMESTAMP,
+	block_number INTEGER NOT NULL,
+	tx_index INTEGER NOT NULL,
+	tx_hash VARCHAR(66) NOT NULL,
+	sender VARCHAR(42) NOT NULL, 
+	recipient VARCHAR(42) NOT NULL, 
+	source_token VARCHAR(42) NOT NULL,
+	destination_token VARCHAR(42) NOT NULL,
+	success BOOLEAN NOT NULL, 
+	date_block TIMESTAMP NOT NULL
+);
+
+CREATE TABLE tx_sync (
+	id SERIAL PRIMARY KEY,
+	tx VARCHAR(66) NOT NULL
+);
+
+INSERT INTO tx_sync (tx) VALUES('0x0000000000000000000000000000000000000000000000000000000000000000');

apps/cic-cache/db/pysqlite/db.sql

@@ -0,0 +1,21 @@
+CREATE TABLE tx (
+	id SERIAL PRIMARY KEY,
+	date_registered DATETIME NOT NULL default CURRENT_DATE, 
+	block_number INTEGER NOT NULL,
+	tx_index INTEGER NOT NULL,
+	tx_hash VARCHAR(66) NOT NULL,
+	sender VARCHAR(42) NOT NULL, 
+	recipient VARCHAR(42) NOT NULL, 
+	source_token VARCHAR(42) NOT NULL,
+	destination_token VARCHAR(42) NOT NULL,
+	success BOOLEAN NOT NULL, 
+	date_block DATETIME NOT NULL,
+	CHECK (success IN (0, 1))
+);
+
+CREATE TABLE tx_sync (
+	id SERIAL PRIMARY_KEY,
+	tx VARCHAR(66) NOT NULL
+);
+
+INSERT INTO tx_sync (tx) VALUES('0x0000000000000000000000000000000000000000000000000000000000000000');

apps/cic-cache/doc/openapi/server.yml

@@ -0,0 +1,102 @@
+openapi: "3.0.3"
+info:
+  title: Grassroots Economics CIC Cache
+  description: Cache of processed transaction data from Ethereum blockchain and worker queues
+  termsOfService: bzz://grassrootseconomics.eth/terms
+  contact:
+    name: Grassroots Economics
+    url: https://www.grassrootseconomics.org
+    email: will@grassecon.org
+  license:
+    name: GPLv3
+  version: 0.1.0
+
+paths:
+  /tx/{offset}/{limit}:
+    description: Bloom filter for batch of latest transactions
+    get:
+      tags:
+        - transactions
+      description:
+        Retrieve transactions
+      operationId: tx.get
+      responses:
+        200:
+          description: Transaction query successful.
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/BlocksBloom"
+
+
+    parameters:
+    - name: offset
+      in: path
+      schema:
+        type: integer
+        format: int32
+    - name: limit
+      in: path
+      schema:
+        type: integer
+        format: int32
+
+
+  /tx/{address}/{offset}/{limit}:
+    description: Bloom filter for batch of latest transactions by account
+    get:
+      tags:
+        - transactions
+      description:
+        Retrieve transactions
+      operationId: tx.get
+      responses:
+        200:
+          description: Transaction query successful. 
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/BlocksBloom"
+
+
+    parameters:
+    - name: address
+      in: path
+      required: true
+      schema:
+        type: string
+    - name: offset
+      in: path
+      schema:
+        type: integer
+        format: int32
+    - name: limit
+      in: path
+      schema:
+        type: integer
+        format: int32
+
+components:
+  schemas:
+    BlocksBloom:
+      type: object
+      properties:
+        low:
+          type: int
+          format: int32
+          description: The lowest block number included in the filter
+        block_filter:
+          type: string
+          format: byte
+          description: Block number filter
+        blocktx_filter:
+          type: string
+          format: byte
+          description: Block and tx index filter
+        alg:
+          type: string
+          description: Hashing algorithm (currently only using sha256)
+        filter_rounds:
+          type: int
+          format: int32
+          description: Number of hash rounds used to create the filter

apps/cic-cache/docker-compose.yaml

@@ -0,0 +1,84 @@
+version: "3"
+volumes:
+  data-volume: {} # an empty dir that can be earased by dropping the volume: docker-compose down -v
+
+services:
+
+  postgres:
+    image: postgres:12.5-alpine
+    container_name: cic_postgres
+    environment:
+      POSTGRES_USER: ${DATABASE_USER:-postgres}
+      POSTGRES_PASSWORD: ${DATABASE_PASSWORD:-password}
+      POSTGRES_DB: postgres
+    ports:
+      - 63432:5432
+    restart: always
+    volumes:
+      - ./db/initdb_files/create_all_db.sql:/docker-entrypoint-initdb.d/1-create_all_db.sql #note these run in order
+      - data-volume:/var/lib/postgresql/data
+
+  db-migration:
+    build:
+      context: .
+    environment:
+      ETH_PROVIDER: ${ETH_PROVIDER:-wss://bloxberg-ws.dev.grassrootseconomics.net/}
+      # CIC_REGISTRY_ADDRESS: ${CIC_REGISTRY_ADDRESS:?err} # TODO are there any public addresses we can use for a default?
+      CIC_REGISTRY_ADDRESS: $CIC_REGISTRY_ADDRESS
+      BANCOR_DIR: $BANCOR_DIR # is this required?
+      DATABASE_HOST: postgres # because it's set in the postgres service block as well as port 
+      DATABASE_PORT: 5432 
+      DATABASE_USER: ${DATABASE_USER:-postgres}
+      DATABASE_PASSWORD: ${DATABASE_PASSWORD:-password}
+      DATABASE_NAME: ${DATABASE_NAME_CIC_CACHE:-cic-cache}
+      DATABASE_ENGINE: postgres
+      DATABASE_DRIVER: psycopg2
+    command: [ "/usr/local/bin/wait-for-it/wait-for-it.sh", "postgres:5432", "--", 
+               "migrate.py", "-c", "/usr/local/etc/cic-cache", "--migrations-dir", 
+               "/usr/local/share/cic-cache/alembic", "-vv" ]
+    depends_on:
+      - postgres
+
+  cic-cache-tracker:
+    build: 
+      context: .
+    # https://docs.docker.com/compose/compose-file/#variable-substitution
+    environment:
+      ETH_PROVIDER: ${ETH_PROVIDER:-wss://bloxberg-ws.dev.grassrootseconomics.net/}
+      # CIC_REGISTRY_ADDRESS: ${CIC_REGISTRY_ADDRESS:?err} # TODO are there any public addresses we can use for a default?
+      CIC_REGISTRY_ADDRESS: $CIC_REGISTRY_ADDRESS
+      BANCOR_DIR: $BANCOR_DIR # is this required?
+      DATABASE_HOST: postgres # because it's set in the postgres service block as well as port 
+      DATABASE_PORT: 5432 
+      DATABASE_USER: ${DATABASE_USER:-postgres}
+      DATABASE_PASSWORD: ${DATABASE_PASSWORD:-password}
+      DATABASE_NAME: ${DATABASE_NAME_CIC_CACHE:-"cic-cache"}
+      DATABASE_ENGINE: postgres
+      DATABASE_DRIVER: psycopg2
+    # deploy:
+    #   restart_policy:
+    #     condition: on-failure
+    entrypoint: ["/usr/local/bin/cic-cache-tracker", "-vv"] 
+    depends_on:
+      - postgres
+      - db-migration
+
+  cic-cache-server:
+    build:
+      context: .
+    environment:
+      DATABASE_HOST: ${DATABASE_HOST:-postgres}
+      DATABASE_PORT: 5432
+      DATABASE_USER: ${DATABASE_USER:-postgres}
+      DATABASE_PASSWORD: ${DATABASE_PASSWORD:-password}
+      DATABASE_NAME: ${DATABASE_NAME_CIC_CACHE:-"cic-cache"}
+      SERVER_PORT: 80
+    ports:
+      - 63313:80
+    # deploy:
+    #   restart_policy:
+    #     condition: on-failure
+    entrypoint: [ "/usr/local/bin/uwsgi", "--wsgi-file", "/usr/local/lib/python3.8/site-packages/cic_cache/runnable/server.py", "--http", ":80", "--pyargv", "-vv" ]
+    depends_on:
+      - postgres
+      - db-migration

apps/cic-cache/examples/bloom_client/parse.js

@@ -0,0 +1,40 @@
+let xmlhttprequest = require('xhr2');
+let moolb = require('moolb');
+
+let xhr = new xmlhttprequest();
+xhr.responseType = 'json';
+xhr.open('GET', 'http://localhost:5555/tx/0/100');
+xhr.addEventListener('load', (e) => {
+
+	d = xhr.response;
+
+	b_one = Buffer.from(d.block_filter, 'base64');
+	b_two = Buffer.from(d.blocktx_filter, 'base64');
+
+	for (let i = 0; i < 8192; i++) {
+		if (b_two[i] > 0) {
+			console.debug('value on', i, b_two[i]);
+		}
+	}
+	console.log(b_one, b_two);
+
+	let f_block = moolb.fromBytes(b_one, d.filter_rounds);
+	let f_blocktx = moolb.fromBytes(b_two, d.filter_rounds);
+	let a = new ArrayBuffer(8);
+	let w = new DataView(a);
+	for (let i = 410000; i < 430000; i++) {
+		w.setInt32(0, i);
+		let r = new Uint8Array(a.slice(0, 4));
+		if (f_block.check(r)) {
+			for (let j = 0; j < 200; j++) {
+				w = new DataView(a);
+				w.setInt32(4, j);
+				r = new Uint8Array(a);
+				if (f_blocktx.check(r)) {
+					console.log('true', i, j);
+				}
+			}
+		}
+	}
+});
+let r = xhr.send();

apps/cic-cache/requirements.txt

@@ -0,0 +1,6 @@
+alembic==1.4.2
+confini==0.3.1
+uwsgi==2.0.19.1
+moolb==0.1.0
+cic-registry==0.3.8
+SQLAlchemy==1.3.19

apps/cic-cache/scripts/migrate.py

@@ -0,0 +1,56 @@
+#!/usr/bin/python
+import os
+import argparse
+import logging
+
+import alembic
+from alembic.config import Config as AlembicConfig
+import confini
+
+from cic_cache.db import dsn_from_config
+
+logging.basicConfig(level=logging.WARNING)
+logg = logging.getLogger()
+
+# BUG: the dbdir doesn't work after script install
+rootdir = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
+dbdir = os.path.join(rootdir, 'cic_cache', 'db')
+migrationsdir = os.path.join(dbdir, 'migrations')
+
+config_dir = os.path.join('/usr/local/etc/cic-cache')
+
+argparser = argparse.ArgumentParser()
+argparser.add_argument('-c', type=str, default=config_dir, help='config file')
+argparser.add_argument('--env-prefix', default=os.environ.get('CONFINI_ENV_PREFIX'), dest='env_prefix', type=str, help='environment prefix for variables to overwrite configuration')
+argparser.add_argument('--migrations-dir', dest='migrations_dir', default=migrationsdir, type=str, help='path to alembic migrations directory')
+argparser.add_argument('-v', action='store_true', help='be verbose')
+argparser.add_argument('-vv', action='store_true', help='be more verbose')
+args = argparser.parse_args()
+
+if args.vv:
+    logging.getLogger().setLevel(logging.DEBUG)
+elif args.v:
+    logging.getLogger().setLevel(logging.INFO)
+
+config = confini.Config(args.c, args.env_prefix)
+config.process()
+config.censor('PASSWORD', 'DATABASE')
+config.censor('PASSWORD', 'SSL')
+logg.debug('config:\n{}'.format(config))
+
+migrations_dir = os.path.join(args.migrations_dir, config.get('DATABASE_ENGINE'))
+if not os.path.isdir(migrations_dir):
+    logg.debug('migrations dir for engine {} not found, reverting to default'.format(config.get('DATABASE_ENGINE')))
+    migrations_dir = os.path.join(args.migrations_dir, 'default')
+
+# connect to database
+dsn = dsn_from_config(config)
+
+
+logg.info('using migrations dir {}'.format(migrations_dir))
+logg.info('using db {}'.format(dsn))
+ac = AlembicConfig(os.path.join(migrations_dir, 'alembic.ini'))
+ac.set_main_option('sqlalchemy.url', dsn)
+ac.set_main_option('script_location', migrations_dir)
+
+alembic.command.upgrade(ac, 'head')

apps/cic-cache/setup.cfg

@@ -0,0 +1,55 @@
+[metadata]
+name = cic-cache
+version = 0.1.1
+description = CIC Cache API and server
+author = Louis Holbrook
+author_email = dev@holbrook.no
+url = https://gitlab.com/grassrootseconomics/cic-eth
+keywords =
+	cic
+	cryptocurrency
+	ethereum
+classifiers =
+	Programming Language :: Python :: 3
+	Operating System :: OS Independent
+	Development Status :: 3 - Alpha
+	Environment :: No Input/Output (Daemon)
+	Intended Audience :: Developers
+	License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)
+	Topic :: Internet
+#	Topic :: Blockchain :: EVM
+license = GPL3
+licence_files =
+	LICENSE.txt
+
+[options]
+python_requires = >= 3.6
+packages = 
+	cic_cache
+	cic_cache.db
+	cic_cache.db.models
+	cic_cache.runnable
+install_requires =
+	alembic==1.4.2
+	web3==5.12.2
+	confini==0.3.2
+	cic-registry==0.3.9
+	moolb==0.1.0
+	SQLAlchemy==1.3.19
+	psycopg2==2.8.6
+tests_require = 
+	pytest==6.0.1
+	pytest-cov==2.10.1
+	pysqlite==0.4.3
+	sqlparse==0.4.1
+dependency_links =
+        https://pip.grassrootseconomics.net:8433/cic-registry
+scripts =
+	./scripts/migrate.py
+
+[options.extras_require]
+server = uWSGI==2.0.19.1
+
+[options.entry_points]
+console_scripts =
+	cic-cache-tracker = cic_cache.runnable.tracker:main

apps/cic-cache/setup.py

@@ -0,0 +1,4 @@
+from setuptools import setup
+
+setup(
+        )

apps/cic-cache/test_requirements.txt

@@ -0,0 +1,5 @@
+pytest==6.0.1
+pytest-cov==2.10.1
+pytest-mock==3.3.1
+pysqlite3==0.4.3
+sqlparse==0.4.1

apps/cic-cache/tests/conftest.py

@@ -0,0 +1,26 @@
+# standard imports
+import os
+import sys
+
+# third-party imports
+import pytest
+
+script_dir = os.path.dirname(os.path.realpath(__file__))
+root_dir = os.path.dirname(script_dir)
+sys.path.insert(0, root_dir)
+
+# fixtures
+from test.fixtures_config import *
+from test.fixtures_database import *
+
+
+@pytest.fixture(scope='session')
+def balances_dict_fields():
+    return {
+            'out_pending': 0,
+            'out_synced': 1,
+            'out_confirmed': 2,
+            'in_pending': 3,
+            'in_synced': 4,
+            'in_confirmed': 5,
+    }

apps/cic-cache/tests/fixtures_config.py

@@ -0,0 +1,20 @@
+# standard imports
+import os
+import logging
+
+# third-party imports
+import pytest
+import confini
+
+script_dir = os.path.dirname(os.path.realpath(__file__))
+root_dir = os.path.dirname(script_dir)
+logg = logging.getLogger(__file__)
+
+
+@pytest.fixture(scope='session')
+def load_config():
+    config_dir = os.path.join(root_dir, '.config/test')
+    conf = confini.Config(config_dir, 'CICTEST')
+    conf.process()
+    logg.debug('config {}'.format(conf))
+    return conf

apps/cic-cache/tests/fixtures_database.py

@@ -0,0 +1,115 @@
+# standard imports
+import os
+import logging
+import re
+
+# third-party imports
+import pytest
+import sqlparse
+
+# local imports
+from cic_cache.db.models.base import SessionBase
+from cic_cache.db import dsn_from_config
+
+logg = logging.getLogger(__file__)
+
+
+@pytest.fixture(scope='function')
+def database_engine(
+    load_config,
+        ):
+    if load_config.get('DATABASE_ENGINE') == 'sqlite':
+        try:
+            os.unlink(load_config.get('DATABASE_NAME'))
+        except FileNotFoundError:
+            pass
+    dsn = dsn_from_config(load_config)
+    SessionBase.connect(dsn)
+    return dsn
+
+
+@pytest.fixture(scope='function')
+def init_database(
+        load_config,
+        database_engine,
+        ):
+
+    rootdir = os.path.dirname(os.path.dirname(__file__))
+    schemadir = os.path.join(rootdir, 'db', load_config.get('DATABASE_DRIVER'))
+
+    if load_config.get('DATABASE_ENGINE') == 'sqlite':
+        rconn = SessionBase.engine.raw_connection()
+        f = open(os.path.join(schemadir, 'db.sql'))
+        s = f.read()
+        f.close()
+        rconn.executescript(s)
+
+    else:
+        rconn = SessionBase.engine.raw_connection()
+        rcursor = rconn.cursor()
+
+        #rcursor.execute('DROP FUNCTION IF EXISTS public.transaction_list')
+        #rcursor.execute('DROP FUNCTION IF EXISTS public.balances')
+
+        f = open(os.path.join(schemadir, 'db.sql'))
+        s = f.read()
+        f.close()
+        r = re.compile(r'^[A-Z]', re.MULTILINE)
+        for l in sqlparse.parse(s):
+            strl = str(l)
+            # we need to check for empty query lines, as sqlparse doesn't do that on its own (and psycopg complains when it gets them)
+            if not re.search(r, strl):
+                logg.warning('skipping parsed query line {}'.format(strl))
+                continue
+            rcursor.execute(strl)
+        rconn.commit()
+
+        rcursor.execute('SET search_path TO public')
+
+# this doesn't work when run separately, no idea why
+# functions have been manually added to original schema from cic-eth 
+#        f = open(os.path.join(schemadir, 'proc_transaction_list.sql'))
+#        s = f.read()
+#        f.close()
+#        rcursor.execute(s)
+# 
+#        f = open(os.path.join(schemadir, 'proc_balances.sql'))
+#        s = f.read()
+#        f.close()
+#        rcursor.execute(s)
+
+        rcursor.close()
+
+    session = SessionBase.create_session()
+    yield session
+    session.commit()
+    session.close()
+
+
+@pytest.fixture(scope='function')
+def list_tokens(
+        ):
+    return {
+            'foo': '0x' + os.urandom(20).hex(),
+            'bar': '0x' + os.urandom(20).hex(),
+        }
+
+
+@pytest.fixture(scope='function')
+def list_actors(
+        ):
+    return {
+            'alice': '0x' + os.urandom(20).hex(),
+            'bob': '0x' + os.urandom(20).hex(),
+            'charlie': '0x' + os.urandom(20).hex(),
+            'diane': '0x' + os.urandom(20).hex(),
+            }
+
+
+@pytest.fixture(scope='function')
+def list_defaults(
+        ):
+
+    return {
+        'block': 420000,
+    }

apps/cic-cache/tests/test_cache.py

@@ -0,0 +1,73 @@
+# standard imports
+import os
+import datetime
+import logging
+import json
+
+# third-party imports
+import pytest
+
+# local imports
+from cic_cache import db
+from cic_cache import BloomCache
+
+logg = logging.getLogger()
+
+
+def test_cache(
+        init_database,
+        list_defaults,
+        list_actors,
+        list_tokens,
+        ):
+
+    session = init_database
+
+    tx_number = 13 
+    tx_hash_first = '0x' + os.urandom(32).hex()
+    val = 15000
+    nonce = 1
+    dt = datetime.datetime.utcnow()
+    db.add_transaction(
+        session,
+        tx_hash_first,
+        list_defaults['block'],
+        tx_number,
+        list_actors['alice'],
+        list_actors['bob'],
+        list_tokens['foo'],
+        list_tokens['foo'],
+        True,
+        dt.timestamp(),
+            )
+
+
+    tx_number = 42
+    tx_hash_second = '0x' + os.urandom(32).hex()
+    tx_signed_second = '0x' + os.urandom(128).hex()
+    nonce = 1
+    dt -= datetime.timedelta(hours=1)
+    db.add_transaction(
+        session,
+        tx_hash_second,
+        list_defaults['block']-1,
+        tx_number,
+        list_actors['diane'],
+        list_actors['alice'],
+        list_tokens['foo'],
+        list_tokens['foo'],
+        False,
+        dt.timestamp(),
+        )
+    
+    session.commit()
+
+    c = BloomCache(session)
+    b = c.load_transactions(0, 100)
+
+    assert b[0] == list_defaults['block'] - 1
+
+    c = BloomCache(session)
+    c.load_transactions_account(list_actors['alice'],0, 100)
+
+    assert b[0] == list_defaults['block'] - 1