415 lines
16 KiB
Python
Executable File
415 lines
16 KiB
Python
Executable File
'''
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Onionr - P2P Anonymous Storage Network
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This file handles all incoming http requests to the client, using Flask
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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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from gevent.pywsgi import WSGIServer
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import gevent.monkey
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gevent.monkey.patch_socket()
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import flask, cgi
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from flask import request, Response, abort, send_from_directory
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import sys, random, threading, hmac, hashlib, base64, time, math, os, json, socket
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import core
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from onionrblockapi import Block
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import onionrutils, onionrexceptions, onionrcrypto, blockimporter, onionrevents as events, logger, config, onionr
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def guessMime(path):
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'''
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Guesses the mime type of a file from the input filename
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'''
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mimetypes = {
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'html' : 'text/html',
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'js' : 'application/javascript',
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'css' : 'text/css',
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'png' : 'image/png',
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'jpg' : 'image/jpeg'
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}
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for mimetype in mimetypes:
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if path.endswith('.%s' % mimetype):
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return mimetypes[mimetype]
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return 'text/plain'
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def setBindIP(filePath):
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'''Set a random localhost IP to a specified file (intended for private or public API localhost IPs)'''
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hostOctets = [str(127), str(random.randint(0x02, 0xFF)), str(random.randint(0x02, 0xFF)), str(random.randint(0x02, 0xFF))]
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data = '.'.join(hostOctets)
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# Try to bind IP. Some platforms like Mac block non normal 127.x.x.x
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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try:
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s.bind((data, 0))
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except OSError:
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logger.warn('Your platform appears to not support random local host addresses 127.x.x.x. Falling back to 127.0.0.1.')
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data = '127.0.0.1'
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s.close()
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with open(filePath, 'w') as bindFile:
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bindFile.write(data)
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return data
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class PublicAPI:
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'''
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The new client api server, isolated from the public api
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'''
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def __init__(self, clientAPI):
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assert isinstance(clientAPI, API)
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app = flask.Flask('PublicAPI')
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self.i2pEnabled = config.get('i2p.host', False)
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self.hideBlocks = [] # Blocks to be denied sharing
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self.host = setBindIP(clientAPI._core.publicApiHostFile)
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self.torAdder = clientAPI._core.hsAddress
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self.i2pAdder = clientAPI._core.i2pAddress
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self.bindPort = config.get('client.public.port')
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logger.info('Running public api on %s:%s' % (self.host, self.bindPort))
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@app.before_request
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def validateRequest():
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'''Validate request has the correct hostname'''
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if type(self.torAdder) is None and type(self.i2pAdder) is None:
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# abort if our hs addresses are not known
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abort(403)
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if request.host not in (self.i2pAdder, self.torAdder):
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abort(403)
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@app.after_request
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def sendHeaders(resp):
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'''Send api, access control headers'''
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resp.headers['Date'] = 'Thu, 1 Jan 1970 00:00:00 GMT' # Clock info is probably useful to attackers. Set to unix epoch.
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resp.headers["Content-Security-Policy"] = "default-src 'none'; script-src 'none'; object-src 'none'; style-src data: 'unsafe-inline'; img-src data:; media-src 'none'; frame-src 'none'; font-src 'none'; connect-src 'none'"
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resp.headers['X-Frame-Options'] = 'deny'
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resp.headers['X-Content-Type-Options'] = "nosniff"
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resp.headers['X-API'] = onionr.API_VERSION
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return resp
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@app.route('/')
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def banner():
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try:
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with open('static-data/index.html', 'r') as html:
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resp = Response(html.read(), mimetype='text/html')
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except FileNotFoundError:
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resp = Response("")
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return resp
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@app.route('/getblocklist')
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def getBlockList():
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bList = clientAPI._core.getBlockList()
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for b in self.hideBlocks:
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if b in bList:
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bList.remove(b)
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return Response('\n'.join(bList))
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@app.route('/getdata/<name>')
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def getBlockData(name):
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resp = ''
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data = name
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if clientAPI._utils.validateHash(data):
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if data not in self.hideBlocks:
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if data in clientAPI._core.getBlockList():
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block = Block(hash=data.encode(), core=clientAPI._core)
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resp = base64.b64encode(block.getRaw().encode()).decode()
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if len(resp) == 0:
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abort(404)
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resp = ""
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return Response(resp)
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@app.route('/www/<path:path>')
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def wwwPublic(path):
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if not config.get("www.public.run", True):
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abort(403)
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return send_from_directory(config.get('www.public.path', 'static-data/www/public/'), path)
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@app.route('/ping')
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def ping():
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return Response("pong!")
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@app.route('/getdbhash')
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def getDBHash():
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return Response(clientAPI._utils.getBlockDBHash())
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@app.route('/pex')
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def peerExchange():
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response = ','.join(clientAPI._core.listAdders(recent=3600))
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if len(response) == 0:
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response = ''
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return Response(response)
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@app.route('/announce', methods=['post'])
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def acceptAnnounce():
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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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ourAdder = clientAPI._core.hsAddress.encode()
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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 block 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 + clientAPI._core.hsAddress.encode()
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nodes = clientAPI._core._crypto.blake2bHash(nodes)
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powHash = clientAPI._core._crypto.blake2bHash(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('0000'):
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try:
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newNode = newNode.decode()
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except AttributeError:
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pass
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if clientAPI._core.addAddress(newNode):
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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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return resp
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@app.route('/upload', methods=['post'])
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def upload():
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resp = 'failure'
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try:
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data = request.form['block']
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except KeyError:
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logger.warn('No block specified for upload')
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pass
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else:
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if sys.getsizeof(data) < 100000000:
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try:
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if blockimporter.importBlockFromData(data, clientAPI._core):
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resp = 'success'
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else:
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logger.warn('Error encountered importing uploaded block')
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except onionrexceptions.BlacklistedBlock:
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logger.debug('uploaded block is blacklisted')
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pass
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if resp == 'failure':
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abort(400)
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resp = Response(resp)
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return resp
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clientAPI.setPublicAPIInstance(self)
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while self.torAdder == '':
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clientAPI._core.refreshFirstStartVars()
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self.torAdder = clientAPI._core.hsAddress
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time.sleep(1)
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self.httpServer = WSGIServer((self.host, self.bindPort), app, log=None)
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self.httpServer.serve_forever()
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class API:
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'''
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Client HTTP api
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'''
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callbacks = {'public' : {}, 'private' : {}}
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def __init__(self, onionrInst, debug, API_VERSION):
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'''
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Initialize the api server, preping variables for later use
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This initilization defines all of the API entry points and handlers for the endpoints and errors
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This also saves the used host (random localhost IP address) to the data folder in host.txt
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'''
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# assert isinstance(onionrInst, onionr.Onionr)
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# configure logger and stuff
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onionr.Onionr.setupConfig('data/', self = self)
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self.debug = debug
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self._privateDelayTime = 3
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self._core = core.Core()
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self.startTime = self._core._utils.getEpoch()
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self._crypto = onionrcrypto.OnionrCrypto(self._core)
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self._utils = onionrutils.OnionrUtils(self._core)
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app = flask.Flask(__name__)
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bindPort = int(config.get('client.client.port', 59496))
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self.bindPort = bindPort
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self.whitelistEndpoints = ('site', 'www', 'onionrhome', 'board', 'boardContent', 'sharedContent')
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self.clientToken = config.get('client.webpassword')
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self.timeBypassToken = base64.b16encode(os.urandom(32)).decode()
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self.publicAPI = None # gets set when the thread calls our setter... bad hack but kinda necessary with flask
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#threading.Thread(target=PublicAPI, args=(self,)).start()
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self.host = setBindIP(self._core.privateApiHostFile)
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logger.info('Running api on %s:%s' % (self.host, self.bindPort))
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self.httpServer = ''
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self.queueResponse = {}
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onionrInst.setClientAPIInst(self)
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@app.before_request
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def validateRequest():
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'''Validate request has set password and is the correct hostname'''
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if request.host != '%s:%s' % (self.host, self.bindPort):
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abort(403)
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if request.endpoint in self.whitelistEndpoints:
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return
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try:
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if not hmac.compare_digest(request.headers['token'], self.clientToken):
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abort(403)
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except KeyError:
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abort(403)
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@app.after_request
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def afterReq(resp):
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#resp.headers["Content-Security-Policy"] = "default-src 'none'; script-src 'none'; object-src 'none'; style-src data: 'unsafe-inline'; img-src data:; media-src 'none'; frame-src 'none'; font-src 'none'; connect-src 'none'"
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resp.headers['Content-Security-Policy'] = "default-src 'none'; script-src 'self'; object-src 'none'; style-src 'self'; img-src 'self'; media-src 'none'; frame-src 'none'; font-src 'none'; connect-src 'self'"
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resp.headers['X-Frame-Options'] = 'deny'
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resp.headers['X-Content-Type-Options'] = "nosniff"
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resp.headers['X-API'] = onionr.API_VERSION
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resp.headers['Server'] = ''
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resp.headers['Date'] = 'Thu, 1 Jan 1970 00:00:00 GMT' # Clock info is probably useful to attackers. Set to unix epoch.
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return resp
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@app.route('/board/', endpoint='board')
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def loadBoard():
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return send_from_directory('static-data/www/board/', "index.html")
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@app.route('/board/<path:path>', endpoint='boardContent')
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def boardContent(path):
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return send_from_directory('static-data/www/board/', path)
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@app.route('/shared/<path:path>', endpoint='sharedContent')
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def sharedContent(path):
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return send_from_directory('static-data/www/shared/', path)
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@app.route('/www/<path:path>', endpoint='www')
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def wwwPublic(path):
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if not config.get("www.private.run", True):
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abort(403)
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return send_from_directory(config.get('www.private.path', 'static-data/www/private/'), path)
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@app.route('/queueResponseAdd/<name>', methods=['post'])
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def queueResponseAdd(name):
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print('added',name)
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self.queueResponse[name] = request.form['data']
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return Response('success')
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@app.route('/queueResponse/<name>')
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def queueResponse(name):
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resp = 'failure'
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try:
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resp = self.queueResponse[name]
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except KeyError:
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pass
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else:
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del self.queueResponse[name]
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print(name, resp)
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return Response(resp)
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@app.route('/ping')
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def ping():
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return Response("pong!")
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@app.route('/', endpoint='onionrhome')
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def hello():
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return send_from_directory('static-data/www/private/', 'index.html')
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@app.route('/getblocksbytype/<name>')
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def getBlocksByType(name):
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blocks = self._core.getBlocksByType(name)
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return Response(','.join(blocks))
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@app.route('/gethtmlsafeblockdata/<name>')
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def getData(name):
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resp = ''
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if self._core._utils.validateHash(name):
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try:
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resp = cgi.escape(Block(name).bcontent, quote=True)
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except TypeError:
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pass
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else:
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abort(404)
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return Response(resp)
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@app.route('/site/<name>', endpoint='site')
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def site(name):
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bHash = name
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resp = 'Not Found'
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if self._core._utils.validateHash(bHash):
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try:
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resp = Block(bHash).bcontent
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except TypeError:
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pass
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try:
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resp = base64.b64decode(resp)
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except:
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pass
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if resp == 'Not Found':
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abourt(404)
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return Response(resp)
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@app.route('/waitforshare/<name>', methods=['post'])
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def waitforshare():
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assert name.isalnum()
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if name in self.publicAPI.hideBlocks:
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self.publicAPI.hideBlocks.remove(name)
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return Response("removed")
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else:
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self.publicAPI.hideBlocks.append(name)
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return Response("added")
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@app.route('/shutdown')
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def shutdown():
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try:
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self.publicAPI.httpServer.stop()
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self.httpServer.stop()
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except AttributeError:
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pass
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return Response("bye")
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@app.route('/getstats')
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def getStats():
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return Response(self._core.serializer.getStats())
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@app.route('/getuptime')
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def showUptime():
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return Response(str(self.getUptime()))
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self.httpServer = WSGIServer((self.host, bindPort), app, log=None)
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self.httpServer.serve_forever()
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def setPublicAPIInstance(self, inst):
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assert isinstance(inst, PublicAPI)
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self.publicAPI = inst
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def validateToken(self, token):
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'''
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Validate that the client token matches the given token
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'''
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if len(self.clientToken) == 0:
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logger.error("client password needs to be set")
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return False
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try:
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if not hmac.compare_digest(self.clientToken, token):
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return False
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else:
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return True
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except TypeError:
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return False
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def getUptime(self):
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return self._utils.getEpoch() - self.startTime |