76 lines
3.0 KiB
Python
Executable File
76 lines
3.0 KiB
Python
Executable File
'''
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Onionr - Private P2P Communication
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Handle announcements to the public API server
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'''
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'''
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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 General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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'''
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import base64
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from flask import Response, g
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import deadsimplekv
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import logger
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from etc import onionrvalues
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from onionrutils import stringvalidators, bytesconverter
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from utils import gettransports
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import onionrcrypto as crypto, filepaths
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from communicator import OnionrCommunicatorDaemon
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def handle_announce(request):
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'''
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accept announcement posts, validating POW
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clientAPI should be an instance of the clientAPI server running, request is a instance of a flask request
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'''
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resp = 'failure'
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powHash = ''
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randomData = ''
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newNode = ''
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try:
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newNode = request.form['node'].encode()
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except KeyError:
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logger.warn('No node specified for upload')
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pass
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else:
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try:
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randomData = request.form['random']
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randomData = base64.b64decode(randomData)
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except KeyError:
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logger.warn('No random data specified for upload')
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else:
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nodes = newNode + bytesconverter.str_to_bytes(gettransports.get()[0])
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nodes = crypto.hashers.blake2b_hash(nodes)
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powHash = crypto.hashers.blake2b_hash(randomData + nodes)
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try:
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powHash = powHash.decode()
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except AttributeError:
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pass
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if powHash.startswith('0' * onionrvalues.ANNOUNCE_POW):
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newNode = bytesconverter.bytes_to_str(newNode)
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announce_queue = deadsimplekv.DeadSimpleKV(filepaths.announce_cache)
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announce_queue_list = announce_queue.get('new_peers')
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if announce_queue_list is None:
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announce_queue_list = []
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if stringvalidators.validate_transport(newNode) and not newNode in announce_queue_list:
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#clientAPI.onionrInst.communicatorInst.newPeers.append(newNode)
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g.shared_state.get(OnionrCommunicatorDaemon).newPeers.append(newNode)
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announce_queue.put('new_peers', announce_queue_list.append(newNode))
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announce_queue.flush()
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resp = 'Success'
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else:
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logger.warn(newNode.decode() + ' failed to meet POW: ' + powHash)
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resp = Response(resp)
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if resp == 'failure':
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return resp, 406
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return resp |