remove db
This commit is contained in:
ThomasV
parent
1dfae26184
commit
f0aae3cc0f
383
server/db.py
383
server/db.py
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#!/usr/bin/env python
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# Copyright(C) 2012 thomasv@gitorious
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public
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# License along with this program. If not, see
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# <http://www.gnu.org/licenses/agpl.html>.
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from Abe.abe import hash_to_address, decode_check_address
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from Abe.DataStore import DataStore as Datastore_class
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from Abe import DataStore, readconf, BCDataStream, deserialize, util, base58
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import psycopg2, binascii
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import thread, traceback, sys, urllib, operator
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from json import dumps, loads
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class MyStore(Datastore_class):
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def __init__(self, config, address_queue):
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conf = DataStore.CONFIG_DEFAULTS
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args, argv = readconf.parse_argv( [], conf)
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args.dbtype = config.get('database','type')
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if args.dbtype == 'sqlite3':
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args.connect_args = { 'database' : config.get('database','database') }
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elif args.dbtype == 'MySQLdb':
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args.connect_args = { 'db' : config.get('database','database'), 'user' : config.get('database','username'), 'passwd' : config.get('database','password') }
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elif args.dbtype == 'psycopg2':
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args.connect_args = { 'database' : config.get('database','database') }
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Datastore_class.__init__(self,args)
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self.tx_cache = {}
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self.mempool_keys = {}
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self.bitcoind_url = 'http://%s:%s@%s:%s/' % ( config.get('bitcoind','user'), config.get('bitcoind','password'), config.get('bitcoind','host'), config.get('bitcoind','port'))
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self.address_queue = address_queue
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self.dblock = thread.allocate_lock()
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def import_block(self, b, chain_ids=frozenset()):
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block_id = super(MyStore, self).import_block(b, chain_ids)
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print "import block", block_id
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for pos in xrange(len(b['transactions'])):
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tx = b['transactions'][pos]
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if 'hash' not in tx:
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tx['hash'] = util.double_sha256(tx['tx'])
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tx_id = store.tx_find_id_and_value(tx)
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if tx_id:
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self.update_tx_cache(tx_id)
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else:
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print "error: import_block: no tx_id"
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return block_id
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def update_tx_cache(self, txid):
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inrows = self.get_tx_inputs(txid, False)
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for row in inrows:
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_hash = self.binout(row[6])
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address = hash_to_address(chr(0), _hash)
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if self.tx_cache.has_key(address):
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print "cache: invalidating", address
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self.tx_cache.pop(address)
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self.address_queue.put(address)
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outrows = self.get_tx_outputs(txid, False)
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for row in outrows:
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_hash = self.binout(row[6])
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address = hash_to_address(chr(0), _hash)
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if self.tx_cache.has_key(address):
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print "cache: invalidating", address
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self.tx_cache.pop(address)
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self.address_queue.put(address)
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def safe_sql(self,sql, params=(), lock=True):
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try:
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if lock: self.dblock.acquire()
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ret = self.selectall(sql,params)
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if lock: self.dblock.release()
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return ret
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except:
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print "sql error", sql
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return []
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def get_tx_outputs(self, tx_id, lock=True):
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return self.safe_sql("""SELECT
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txout.txout_pos,
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txout.txout_scriptPubKey,
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txout.txout_value,
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nexttx.tx_hash,
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nexttx.tx_id,
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txin.txin_pos,
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pubkey.pubkey_hash
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FROM txout
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LEFT JOIN txin ON (txin.txout_id = txout.txout_id)
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LEFT JOIN pubkey ON (pubkey.pubkey_id = txout.pubkey_id)
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LEFT JOIN tx nexttx ON (txin.tx_id = nexttx.tx_id)
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WHERE txout.tx_id = %d
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ORDER BY txout.txout_pos
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"""%(tx_id), (), lock)
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def get_tx_inputs(self, tx_id, lock=True):
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return self.safe_sql(""" SELECT
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txin.txin_pos,
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txin.txin_scriptSig,
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txout.txout_value,
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COALESCE(prevtx.tx_hash, u.txout_tx_hash),
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prevtx.tx_id,
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COALESCE(txout.txout_pos, u.txout_pos),
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pubkey.pubkey_hash
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FROM txin
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LEFT JOIN txout ON (txout.txout_id = txin.txout_id)
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LEFT JOIN pubkey ON (pubkey.pubkey_id = txout.pubkey_id)
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LEFT JOIN tx prevtx ON (txout.tx_id = prevtx.tx_id)
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LEFT JOIN unlinked_txin u ON (u.txin_id = txin.txin_id)
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WHERE txin.tx_id = %d
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ORDER BY txin.txin_pos
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"""%(tx_id,), (), lock)
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def get_address_out_rows(self, dbhash):
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return self.safe_sql(""" SELECT
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b.block_nTime,
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cc.chain_id,
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b.block_height,
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1,
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b.block_hash,
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tx.tx_hash,
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tx.tx_id,
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txin.txin_pos,
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-prevout.txout_value
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FROM chain_candidate cc
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JOIN block b ON (b.block_id = cc.block_id)
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JOIN block_tx ON (block_tx.block_id = b.block_id)
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JOIN tx ON (tx.tx_id = block_tx.tx_id)
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JOIN txin ON (txin.tx_id = tx.tx_id)
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JOIN txout prevout ON (txin.txout_id = prevout.txout_id)
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JOIN pubkey ON (pubkey.pubkey_id = prevout.pubkey_id)
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WHERE pubkey.pubkey_hash = ?
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AND cc.in_longest = 1""", (dbhash,))
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def get_address_out_rows_memorypool(self, dbhash):
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return self.safe_sql(""" SELECT
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1,
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tx.tx_hash,
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tx.tx_id,
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txin.txin_pos,
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-prevout.txout_value
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FROM tx
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JOIN txin ON (txin.tx_id = tx.tx_id)
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JOIN txout prevout ON (txin.txout_id = prevout.txout_id)
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JOIN pubkey ON (pubkey.pubkey_id = prevout.pubkey_id)
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WHERE pubkey.pubkey_hash = ? """, (dbhash,))
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def get_address_in_rows(self, dbhash):
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return self.safe_sql(""" SELECT
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b.block_nTime,
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cc.chain_id,
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b.block_height,
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0,
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b.block_hash,
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tx.tx_hash,
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tx.tx_id,
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txout.txout_pos,
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txout.txout_value
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FROM chain_candidate cc
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JOIN block b ON (b.block_id = cc.block_id)
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JOIN block_tx ON (block_tx.block_id = b.block_id)
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JOIN tx ON (tx.tx_id = block_tx.tx_id)
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JOIN txout ON (txout.tx_id = tx.tx_id)
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JOIN pubkey ON (pubkey.pubkey_id = txout.pubkey_id)
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WHERE pubkey.pubkey_hash = ?
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AND cc.in_longest = 1""", (dbhash,))
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def get_address_in_rows_memorypool(self, dbhash):
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return self.safe_sql( """ SELECT
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0,
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tx.tx_hash,
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tx.tx_id,
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txout.txout_pos,
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txout.txout_value
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FROM tx
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JOIN txout ON (txout.tx_id = tx.tx_id)
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JOIN pubkey ON (pubkey.pubkey_id = txout.pubkey_id)
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WHERE pubkey.pubkey_hash = ? """, (dbhash,))
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def get_history(self, addr):
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cached_version = self.tx_cache.get( addr )
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if cached_version is not None:
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return cached_version
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version, binaddr = decode_check_address(addr)
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if binaddr is None:
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return None
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dbhash = self.binin(binaddr)
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rows = []
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rows += self.get_address_out_rows( dbhash )
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rows += self.get_address_in_rows( dbhash )
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txpoints = []
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known_tx = []
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for row in rows:
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try:
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nTime, chain_id, height, is_in, blk_hash, tx_hash, tx_id, pos, value = row
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except:
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print "cannot unpack row", row
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break
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tx_hash = self.hashout_hex(tx_hash)
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txpoint = {
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"nTime": int(nTime),
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"height": int(height),
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"is_in": int(is_in),
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"blk_hash": self.hashout_hex(blk_hash),
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"tx_hash": tx_hash,
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"tx_id": int(tx_id),
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"pos": int(pos),
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"value": int(value),
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}
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txpoints.append(txpoint)
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known_tx.append(self.hashout_hex(tx_hash))
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# todo: sort them really...
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txpoints = sorted(txpoints, key=operator.itemgetter("nTime"))
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# read memory pool
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rows = []
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rows += self.get_address_in_rows_memorypool( dbhash )
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rows += self.get_address_out_rows_memorypool( dbhash )
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address_has_mempool = False
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for row in rows:
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is_in, tx_hash, tx_id, pos, value = row
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tx_hash = self.hashout_hex(tx_hash)
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if tx_hash in known_tx:
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continue
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# this means that pending transactions were added to the db, even if they are not returned by getmemorypool
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address_has_mempool = True
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# this means pending transactions are returned by getmemorypool
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if tx_hash not in self.mempool_keys:
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continue
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#print "mempool", tx_hash
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txpoint = {
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"nTime": 0,
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"height": 0,
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"is_in": int(is_in),
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"blk_hash": 'mempool',
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"tx_hash": tx_hash,
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"tx_id": int(tx_id),
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"pos": int(pos),
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"value": int(value),
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}
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txpoints.append(txpoint)
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for txpoint in txpoints:
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tx_id = txpoint['tx_id']
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txinputs = []
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inrows = self.get_tx_inputs(tx_id)
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for row in inrows:
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_hash = self.binout(row[6])
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address = hash_to_address(chr(0), _hash)
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txinputs.append(address)
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txpoint['inputs'] = txinputs
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txoutputs = []
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outrows = self.get_tx_outputs(tx_id)
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for row in outrows:
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_hash = self.binout(row[6])
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address = hash_to_address(chr(0), _hash)
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txoutputs.append(address)
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txpoint['outputs'] = txoutputs
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# for all unspent inputs, I want their scriptpubkey. (actually I could deduce it from the address)
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if not txpoint['is_in']:
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# detect if already redeemed...
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for row in outrows:
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if row[6] == dbhash: break
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else:
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raise
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#row = self.get_tx_output(tx_id,dbhash)
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# pos, script, value, o_hash, o_id, o_pos, binaddr = row
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# if not redeemed, we add the script
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if row:
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if not row[4]: txpoint['raw_scriptPubKey'] = row[1]
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# cache result
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if not address_has_mempool:
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self.tx_cache[addr] = txpoints
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return txpoints
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def memorypool_update(store):
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ds = BCDataStream.BCDataStream()
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previous_transactions = store.mempool_keys
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store.mempool_keys = []
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postdata = dumps({"method": 'getmemorypool', 'params': [], 'id':'jsonrpc'})
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respdata = urllib.urlopen(store.bitcoind_url, postdata).read()
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r = loads(respdata)
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if r['error'] != None:
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return
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v = r['result'].get('transactions')
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for hextx in v:
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ds.clear()
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ds.write(hextx.decode('hex'))
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tx = deserialize.parse_Transaction(ds)
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tx['hash'] = util.double_sha256(tx['tx'])
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tx_hash = store.hashin(tx['hash'])
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def send_tx(self,tx):
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postdata = dumps({"method": 'importtransaction', 'params': [tx], 'id':'jsonrpc'})
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respdata = urllib.urlopen(self.bitcoind_url, postdata).read()
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r = loads(respdata)
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if r['error'] != None:
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out = "error: transaction rejected by memorypool\n"+tx
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else:
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out = r['result']
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return out
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def main_iteration(store):
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try:
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store.dblock.acquire()
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store.catch_up()
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store.memorypool_update()
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block_number = store.get_block_number(1)
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print block_number
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except IOError:
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print "IOError: cannot reach bitcoind"
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block_number = 0
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except:
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traceback.print_exc(file=sys.stdout)
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block_number = 0
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finally:
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store.dblock.release()
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return block_number
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if __name__ == '__main__':
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import Queue, ConfigParser
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config = ConfigParser.ConfigParser()
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config.add_section('database')
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config.set('database', 'type', 'psycopg2')
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config.set('database', 'database', 'abe')
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try:
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f = open('/etc/electrum.conf','r')
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config.readfp(f)
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f.close()
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except:
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print "Could not read electrum.conf. I will use the default values."
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address_queue = Queue.Queue()
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store = MyStore(config,address_queue)
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store.main_iteration()
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