2019-06-28 18:55:29 +00:00
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__filename__ = "daemon.py"
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__author__ = "Bob Mottram"
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__license__ = "AGPL3+"
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__version__ = "0.0.1"
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__maintainer__ = "Bob Mottram"
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__email__ = "bob@freedombone.net"
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__status__ = "Production"
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from http.server import BaseHTTPRequestHandler, HTTPServer
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#import socketserver
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import json
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import cgi
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from pprint import pprint
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from session import createSession
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from httpsig import testHttpsig
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from webfinger import webfingerMeta
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from webfinger import webfingerLookup
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from person import personLookup
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from person import personKeyLookup
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import os
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2019-06-28 21:06:05 +00:00
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import sys
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2019-06-28 18:55:29 +00:00
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2019-06-28 20:22:36 +00:00
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# domain name of this server
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2019-06-28 18:55:29 +00:00
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thisDomain=''
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2019-06-28 20:22:36 +00:00
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# List of domains to federate with
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federationList=[]
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2019-06-28 21:06:05 +00:00
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# Avoid giant messages
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maxMessageLength=5000
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2019-06-28 18:55:29 +00:00
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def readFollowList(filename: str):
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"""Returns a list of ActivityPub addresses to follow
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"""
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followlist=[]
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if not os.path.isfile(filename):
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return followlist
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followUsers = open(filename, "r")
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for u in followUsers:
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if u not in followlist:
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username,domain = parseHandle(u)
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if username:
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followlist.append(username+'@'+domain)
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return followlist
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class PubServer(BaseHTTPRequestHandler):
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def _set_headers(self,fileFormat):
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self.send_response(200)
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self.send_header('Content-type', fileFormat)
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self.end_headers()
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def _404(self):
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self.send_response(404)
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self.send_header('Content-Type', 'text/html; charset=utf-8')
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self.end_headers()
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self.wfile.write("<html><head></head><body><h1>404 Not Found</h1></body></html>".encode('utf-8'))
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def _webfinger(self) -> bool:
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if not self.path.startswith('/.well-known'):
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return False
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if self.path.startswith('/.well-known/host-meta'):
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wfResult=webfingerMeta()
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if wfResult:
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self._set_headers('application/xrd+xml')
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self.wfile.write(wfResult.encode('utf-8'))
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return
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wfResult=webfingerLookup(self.path)
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if wfResult:
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self._set_headers('application/json')
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self.wfile.write(json.dumps(wfResult).encode('utf-8'))
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else:
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self._404()
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return True
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def permittedDir(self,path):
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if path.startswith('/wfendpoints') or \
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path.startswith('/keys') or \
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path.startswith('/accounts'):
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return False
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return True
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2019-06-28 20:35:34 +00:00
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def _permittedMessage(self,message):
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""" check that we are posting to a permitted domain
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"""
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testParam='actor'
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if not message.get(testParam):
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return False
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actor=message[testParam]
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2019-06-28 20:38:58 +00:00
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# always allow the local domain
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if thisDomain in actor:
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return True
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2019-06-28 20:35:34 +00:00
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permittedDomain=False
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2019-06-28 20:36:21 +00:00
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for domain in federationList:
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2019-06-28 20:35:34 +00:00
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if domain in actor:
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permittedDomain=True
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break
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2019-06-28 21:01:02 +00:00
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if not permittedDomain:
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return False
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if message.get('object'):
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if message['object'].get('inReplyTo'):
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inReplyTo=message['object']['inReplyTo']
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permittedReplyDomain=False
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for domain in federationList:
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if domain in inReplyTo:
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permittedReplyDomain=True
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break
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if not permittedReplyDomain:
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return False
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return True
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2019-06-28 18:55:29 +00:00
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def do_GET(self):
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if not self.permittedDir(self.path):
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self._404()
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return
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# get webfinger endpoint for a person
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if self._webfinger():
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return
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# look up a person
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getPerson = personLookup(thisDomain,self.path)
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if getPerson:
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self._set_headers('application/json')
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self.wfile.write(json.dumps(getPerson).encode('utf-8'))
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return
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getPersonKey = personKeyLookup(thisDomain,self.path)
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if getPersonKey:
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self._set_headers('text/html; charset=utf-8')
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self.wfile.write(getPersonKey.encode('utf-8'))
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return
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# check that a json file was requested
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baseDir=os.getcwd()
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if not self.path.endswith('.json'):
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self._404()
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return
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# check that the file exists
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filename=baseDir+self.path
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if os.path.isfile(filename):
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self._set_headers('application/json')
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with open(filename, 'r', encoding='utf8') as File:
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content = File.read()
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contentJson=json.loads(content)
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self.wfile.write(json.dumps(contentJson).encode('utf8'))
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else:
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self._404()
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def do_HEAD(self):
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self._set_headers('application/json')
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def do_POST(self):
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ctype, pdict = cgi.parse_header(self.headers.getheader('content-type'))
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# refuse to receive non-json content
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if ctype != 'application/json':
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self.send_response(400)
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self.end_headers()
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return
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# read the message and convert it into a python dictionary
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length = int(self.headers.getheader('content-length'))
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2019-06-28 21:06:05 +00:00
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if length>maxMessageLength:
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self.send_response(400)
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self.end_headers()
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return
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message = json.loads(self.rfile.read(length))
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2019-06-28 20:35:34 +00:00
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if not self._permittedMessage(message):
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self._404()
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else:
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# add a property to the object, just to mess with data
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message['received'] = 'ok'
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2019-06-28 18:55:29 +00:00
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2019-06-28 20:35:34 +00:00
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# send the message back
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self._set_headers('application/json')
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self.wfile.write(json.dumps(message).encode('utf-8'))
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2019-06-28 18:55:29 +00:00
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2019-06-28 21:07:21 +00:00
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def runDaemon(domain: str,port=80,fedList=[],useTor=False) -> None:
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2019-06-28 18:55:29 +00:00
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global thisDomain
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2019-06-28 20:22:36 +00:00
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global federationList
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2019-06-28 18:55:29 +00:00
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thisDomain=domain
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2019-06-28 20:43:37 +00:00
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federationList=fedList.copy()
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2019-06-28 18:55:29 +00:00
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if len(domain)==0:
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domain='127.0.0.1'
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if '.' not in domain:
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print('Invalid domain: ' + domain)
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return
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session = createSession(useTor)
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print('Running tests...')
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testHttpsig()
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print('Tests succeeded\n')
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serverAddress = ('', port)
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httpd = HTTPServer(serverAddress, PubServer)
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print('Running ActivityPub daemon on ' + thisDomain + ' port ' + str(port))
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httpd.serve_forever()
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