Private Decentralized Communication Network
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'''
Onionr - Private P2P Communication
Write and read the daemon queue, which is how messages are passed into the onionr daemon in a more
direct way than the http api
'''
'''
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, os
from onionrplugins import onionrevents as events
from onionrutils import localcommand, epoch
from .. import dbfiles
from onionrsetup import dbcreator
from etc import onionrvalues
def daemon_queue()->str:
'''
Gives commands to the communication proccess/daemon by reading an sqlite3 database
This function intended to be used by the client. Queue to exchange data between "client" and server.
'''
retData = False
if not os.path.exists(dbfiles.daemon_queue_db):
dbcreator.createDaemonDB()
else:
conn = sqlite3.connect(dbfiles.daemon_queue_db, timeout=onionrvalues.DATABASE_LOCK_TIMEOUT)
c = conn.cursor()
try:
for row in c.execute('SELECT command, data, date, min(ID), responseID FROM commands group by id'):
retData = row
break
except sqlite3.OperationalError:
dbcreator.createDaemonDB()
else:
if retData != False:
c.execute('DELETE FROM commands WHERE id=?;', (retData[3],))
conn.commit()
conn.close()
return retData
def daemon_queue_add(command: str, data='', responseID: str =''):
'''
Add a command to the daemon queue, used by the communication daemon (communicator.py)
'''
retData = True
date = epoch.get_epoch()
conn = sqlite3.connect(dbfiles.daemon_queue_db, timeout=onionrvalues.DATABASE_LOCK_TIMEOUT)
c = conn.cursor()
t = (command, data, date, responseID)
try:
c.execute('INSERT INTO commands (command, data, date, responseID) VALUES(?, ?, ?, ?)', t)
conn.commit()
except sqlite3.OperationalError:
retData = False
daemon_queue()
conn.close()
return retData
def daemon_queue_get_response(responseID=''):
'''
Get a response sent by communicator to the API, by requesting to the API
'''
if len(responseID) == 0: raise ValueError('ResponseID should not be empty')
resp = localcommand.local_command(dbfiles.daemon_queue_db, 'queueResponse/' + responseID)
return resp
def clear_daemon_queue():
'''
Clear the daemon queue (somewhat dangerous)
'''
conn = sqlite3.connect(dbfiles.daemon_queue_db, timeout=onionrvalues.DATABASE_LOCK_TIMEOUT)
c = conn.cursor()
c.execute('DELETE FROM commands;')
conn.commit()
conn.close()