Private Decentralized Communication Network
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'''
Onionr - Private P2P Communication
This module works with information relating to blocks stored on the node
'''
'''
This program 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.
This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
'''
import sqlite3
from etc import onionrvalues
from . import expiredblocks, updateblockinfo, add
from .. import dbfiles
update_block_info = updateblockinfo.update_block_info
add_to_block_DB = add.add_to_block_DB
def get_block_list(dateRec = None, unsaved = False):
'''
Get list of our blocks
'''
if dateRec == None:
dateRec = 0
conn = sqlite3.connect(dbfiles.block_meta_db, timeout=onionrvalues.DATABASE_LOCK_TIMEOUT)
c = conn.cursor()
execute = 'SELECT hash FROM hashes WHERE dateReceived >= ? ORDER BY dateReceived ASC;'
args = (dateRec,)
rows = list()
for row in c.execute(execute, args):
for i in row:
rows.append(i)
conn.close()
return rows
def get_block_date(blockHash):
'''
Returns the date a block was received
'''
conn = sqlite3.connect(dbfiles.block_meta_db, timeout=onionrvalues.DATABASE_LOCK_TIMEOUT)
c = conn.cursor()
execute = 'SELECT dateReceived FROM hashes WHERE hash=?;'
args = (blockHash,)
for row in c.execute(execute, args):
for i in row:
return int(i)
conn.close()
return None
def get_blocks_by_type(blockType, orderDate=True):
'''
Returns a list of blocks by the type
'''
conn = sqlite3.connect(dbfiles.block_meta_db, timeout=onionrvalues.DATABASE_LOCK_TIMEOUT)
c = conn.cursor()
if orderDate:
execute = 'SELECT hash FROM hashes WHERE dataType=? ORDER BY dateReceived;'
else:
execute = 'SELECT hash FROM hashes WHERE dataType=?;'
args = (blockType,)
rows = list()
for row in c.execute(execute, args):
for i in row:
rows.append(i)
conn.close()
return rows