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<article id="content">
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<header>
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<h1 class="title">Module <code>onionr.communicatorutils.announcenode</code></h1>
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</header>
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<section id="section-intro">
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<p>Onionr - Private P2P Communication</p>
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<p>Use a communicator instance to announce our transport address to connected nodes</p>
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<details class="source">
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<summary>Source code</summary>
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<pre><code class="python">'''
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Onionr - Private P2P Communication
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Use a communicator instance to announce our transport address to connected nodes
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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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import onionrproofs, logger
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from etc import onionrvalues
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from onionrutils import basicrequests, bytesconverter
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from utils import gettransports
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from netcontroller import NetController
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from communicator import onlinepeers
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from coredb import keydb
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def announce_node(daemon):
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'''Announce our node to our peers'''
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ret_data = False
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announce_fail = False
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# Do not let announceCache get too large
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if len(daemon.announceCache) >= 10000:
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daemon.announceCache.popitem()
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if daemon.config.get('general.security_level', 0) == 0:
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# Announce to random online peers
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for i in daemon.onlinePeers:
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if not i in daemon.announceCache and not i in daemon.announceProgress:
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peer = i
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break
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else:
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peer = onlinepeers.pick_online_peer(daemon)
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for x in range(1):
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try:
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ourID = gettransports.get()[0]
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except IndexError:
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break
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url = 'http://' + peer + '/announce'
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data = {'node': ourID}
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combinedNodes = ourID + peer
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if ourID != 1:
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existingRand = bytesconverter.bytes_to_str(keydb.transportinfo.get_address_info(peer, 'powValue'))
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# Reset existingRand if it no longer meets the minimum POW
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if type(existingRand) is type(None) or not existingRand.endswith('0' * onionrvalues.ANNOUNCE_POW):
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existingRand = ''
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if peer in daemon.announceCache:
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data['random'] = daemon.announceCache[peer]
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elif len(existingRand) > 0:
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data['random'] = existingRand
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else:
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daemon.announceProgress[peer] = True
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proof = onionrproofs.DataPOW(combinedNodes, minDifficulty=onionrvalues.ANNOUNCE_POW)
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del daemon.announceProgress[peer]
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try:
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data['random'] = base64.b64encode(proof.waitForResult()[1])
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except TypeError:
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# Happens when we failed to produce a proof
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logger.error("Failed to produce a pow for announcing to " + peer)
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announce_fail = True
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else:
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daemon.announceCache[peer] = data['random']
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if not announce_fail:
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logger.info('Announcing node to ' + url)
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if basicrequests.do_post_request(url, data, port=daemon.shared_state.get(NetController).socksPort) == 'Success':
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logger.info('Successfully introduced node to ' + peer, terminal=True)
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ret_data = True
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keydb.transportinfo.set_address_info(peer, 'introduced', 1)
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keydb.transportinfo.set_address_info(peer, 'powValue', data['random'])
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daemon.decrementThreadCount('announce_node')
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return ret_data</code></pre>
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</details>
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</section>
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<section>
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</section>
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<section>
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</section>
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<section>
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<h2 class="section-title" id="header-functions">Functions</h2>
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<dl>
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<dt id="onionr.communicatorutils.announcenode.announce_node"><code class="name flex">
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<span>def <span class="ident">announce_node</span></span>(<span>daemon)</span>
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</code></dt>
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<dd>
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<section class="desc"><p>Announce our node to our peers</p></section>
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<details class="source">
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<summary>Source code</summary>
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<pre><code class="python">def announce_node(daemon):
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'''Announce our node to our peers'''
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ret_data = False
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announce_fail = False
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# Do not let announceCache get too large
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if len(daemon.announceCache) >= 10000:
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daemon.announceCache.popitem()
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if daemon.config.get('general.security_level', 0) == 0:
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# Announce to random online peers
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for i in daemon.onlinePeers:
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if not i in daemon.announceCache and not i in daemon.announceProgress:
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peer = i
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break
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else:
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peer = onlinepeers.pick_online_peer(daemon)
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for x in range(1):
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try:
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ourID = gettransports.get()[0]
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except IndexError:
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break
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url = 'http://' + peer + '/announce'
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data = {'node': ourID}
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combinedNodes = ourID + peer
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if ourID != 1:
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existingRand = bytesconverter.bytes_to_str(keydb.transportinfo.get_address_info(peer, 'powValue'))
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# Reset existingRand if it no longer meets the minimum POW
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if type(existingRand) is type(None) or not existingRand.endswith('0' * onionrvalues.ANNOUNCE_POW):
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existingRand = ''
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if peer in daemon.announceCache:
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data['random'] = daemon.announceCache[peer]
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elif len(existingRand) > 0:
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data['random'] = existingRand
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else:
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daemon.announceProgress[peer] = True
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proof = onionrproofs.DataPOW(combinedNodes, minDifficulty=onionrvalues.ANNOUNCE_POW)
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del daemon.announceProgress[peer]
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try:
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data['random'] = base64.b64encode(proof.waitForResult()[1])
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except TypeError:
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# Happens when we failed to produce a proof
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logger.error("Failed to produce a pow for announcing to " + peer)
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announce_fail = True
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else:
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daemon.announceCache[peer] = data['random']
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if not announce_fail:
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logger.info('Announcing node to ' + url)
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if basicrequests.do_post_request(url, data, port=daemon.shared_state.get(NetController).socksPort) == 'Success':
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logger.info('Successfully introduced node to ' + peer, terminal=True)
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ret_data = True
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keydb.transportinfo.set_address_info(peer, 'introduced', 1)
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keydb.transportinfo.set_address_info(peer, 'powValue', data['random'])
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daemon.decrementThreadCount('announce_node')
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return ret_data</code></pre>
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</details>
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</dd>
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</dl>
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</section>
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<section>
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</section>
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</article>
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<nav id="sidebar">
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<h1>Index</h1>
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<div class="toc">
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<ul></ul>
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</div>
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<ul id="index">
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<li><h3>Super-module</h3>
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<ul>
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<li><code><a title="onionr.communicatorutils" href="index.html">onionr.communicatorutils</a></code></li>
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</ul>
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</li>
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<li><h3><a href="#header-functions">Functions</a></h3>
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<ul class="">
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<li><code><a title="onionr.communicatorutils.announcenode.announce_node" href="#onionr.communicatorutils.announcenode.announce_node">announce_node</a></code></li>
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</ul>
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</li>
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</ul>
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