forked from indymedia/epicyon
458 lines
18 KiB
Python
458 lines
18 KiB
Python
__filename__ = "daemon.py"
|
|
__author__ = "Bob Mottram"
|
|
__license__ = "AGPL3+"
|
|
__version__ = "0.0.1"
|
|
__maintainer__ = "Bob Mottram"
|
|
__email__ = "bob@freedombone.net"
|
|
__status__ = "Production"
|
|
|
|
from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
|
|
#import socketserver
|
|
import json
|
|
import time
|
|
from pprint import pprint
|
|
from session import createSession
|
|
from webfinger import webfingerMeta
|
|
from webfinger import webfingerLookup
|
|
from webfinger import webfingerHandle
|
|
from person import personLookup
|
|
from person import personBoxJson
|
|
from posts import outboxMessageCreateWrap
|
|
from posts import savePostToBox
|
|
from inbox import inboxPermittedMessage
|
|
from inbox import inboxMessageHasParams
|
|
from inbox import runInboxQueue
|
|
from inbox import savePostToInboxQueue
|
|
from follow import getFollowingFeed
|
|
from auth import authorize
|
|
from threads import threadWithTrace
|
|
import os
|
|
import sys
|
|
|
|
# Avoid giant messages
|
|
maxMessageLength=5000
|
|
|
|
# maximum number of posts to list in outbox feed
|
|
maxPostsInFeed=20
|
|
|
|
# number of follows/followers per page
|
|
followsPerPage=12
|
|
|
|
def readFollowList(filename: str):
|
|
"""Returns a list of ActivityPub addresses to follow
|
|
"""
|
|
followlist=[]
|
|
if not os.path.isfile(filename):
|
|
return followlist
|
|
followUsers = open(filename, "r")
|
|
for u in followUsers:
|
|
if u not in followlist:
|
|
nickname,domain = parseHandle(u)
|
|
if nickname:
|
|
followlist.append(nickname+'@'+domain)
|
|
followUsers.close()
|
|
return followlist
|
|
|
|
class PubServer(BaseHTTPRequestHandler):
|
|
def _set_headers(self,fileFormat: str) -> None:
|
|
self.send_response(200)
|
|
self.send_header('Content-type', fileFormat)
|
|
self.end_headers()
|
|
|
|
def _404(self) -> None:
|
|
self.send_response(404)
|
|
self.send_header('Content-Type', 'text/html; charset=utf-8')
|
|
self.end_headers()
|
|
self.wfile.write("<html><head></head><body><h1>404 Not Found</h1></body></html>".encode('utf-8'))
|
|
|
|
def _webfinger(self) -> bool:
|
|
if not self.path.startswith('/.well-known'):
|
|
return False
|
|
if self.server.debug:
|
|
print('DEBUG: WEBFINGER well-known')
|
|
|
|
if self.server.debug:
|
|
print('DEBUG: WEBFINGER host-meta')
|
|
if self.path.startswith('/.well-known/host-meta'):
|
|
wfResult=webfingerMeta()
|
|
if wfResult:
|
|
self._set_headers('application/xrd+xml')
|
|
self.wfile.write(wfResult.encode('utf-8'))
|
|
return
|
|
|
|
if self.server.debug:
|
|
print('DEBUG: WEBFINGER lookup '+self.path+' '+str(self.server.baseDir))
|
|
wfResult=webfingerLookup(self.path,self.server.baseDir)
|
|
if wfResult:
|
|
self._set_headers('application/jrd+json')
|
|
self.wfile.write(json.dumps(wfResult).encode('utf-8'))
|
|
else:
|
|
if self.server.debug:
|
|
print('DEBUG: WEBFINGER lookup 404 '+self.path)
|
|
self._404()
|
|
return True
|
|
|
|
def _permittedDir(self,path: str) -> bool:
|
|
"""These are special paths which should not be accessible
|
|
directly via GET or POST
|
|
"""
|
|
if path.startswith('/wfendpoints') or \
|
|
path.startswith('/keys') or \
|
|
path.startswith('/accounts'):
|
|
return False
|
|
return True
|
|
|
|
def _postToOutbox(self,messageJson: {}) -> bool:
|
|
"""post is received by the outbox
|
|
Client to server message post
|
|
https://www.w3.org/TR/activitypub/#client-to-server-outbox-delivery
|
|
"""
|
|
if not messageJson.get('type'):
|
|
if self.server.debug:
|
|
print('DEBUG: POST to outbox has no "type" parameter')
|
|
return False
|
|
if not messageJson.get('object') and messageJson.get('content'):
|
|
if messageJson['type']!='Create':
|
|
# https://www.w3.org/TR/activitypub/#object-without-create
|
|
if self.server.debug:
|
|
print('DEBUG: POST to outbox - adding Create wrapper')
|
|
messageJson= \
|
|
outboxMessageCreateWrap(self.server.httpPrefix, \
|
|
self.postToNickname, \
|
|
self.server.domain,messageJson)
|
|
if messageJson['type']=='Create':
|
|
if not (messageJson.get('id') and \
|
|
messageJson.get('type') and \
|
|
messageJson.get('actor') and \
|
|
messageJson.get('object') and \
|
|
messageJson.get('atomUri') and \
|
|
messageJson.get('to')):
|
|
if self.server.debug:
|
|
print('DEBUG: POST to outbox - Create does not have the required parameters')
|
|
return False
|
|
# https://www.w3.org/TR/activitypub/#create-activity-outbox
|
|
messageJson['object']['attributedTo']=messageJson['actor']
|
|
permittedOutboxTypes=['Create','Announce','Like','Follow','Undo','Update','Add','Remove','Block','Delete']
|
|
if messageJson['type'] not in permittedOutboxTypes:
|
|
if self.server.debug:
|
|
print('DEBUG: POST to outbox - '+messageJson['type']+' is not a permitted activity type')
|
|
return False
|
|
if messageJson.get('id'):
|
|
postId=messageJson['id']
|
|
else:
|
|
postId=None
|
|
savePostToBox(self.server.baseDir,postId,self.postToNickname,self.server.domain,messageJson,'outbox')
|
|
return True
|
|
|
|
def _updateInboxQueue(self,nickname: str,messageJson: {}) -> bool:
|
|
"""Update the inbox queue
|
|
"""
|
|
cacheFilename = \
|
|
savePostToInboxQueue(self.server.baseDir, \
|
|
self.server.httpPrefix, \
|
|
nickname, \
|
|
self.server.domain, \
|
|
messageJson,
|
|
self.headers['host'],
|
|
self.headers['signature'],
|
|
'/'+self.path.split('/')[-1])
|
|
if cacheFilename:
|
|
if cacheFilename not in self.server.inboxQueue:
|
|
self.server.inboxQueue.append(cacheFilename)
|
|
self.send_response(201)
|
|
self.end_headers()
|
|
self.server.POSTbusy=False
|
|
return True
|
|
return False
|
|
|
|
def do_GET(self):
|
|
if self.server.debug:
|
|
print('DEBUG: GET from '+self.server.baseDir+' path: '+self.path+' busy: '+str(self.server.GETbusy))
|
|
if self.server.GETbusy:
|
|
currTimeGET=int(time.time())
|
|
if currTimeGET-self.server.lastGET<10:
|
|
if self.server.debug:
|
|
print('DEBUG: GET Busy')
|
|
self.send_response(429)
|
|
self.end_headers()
|
|
return
|
|
self.server.lastGET=currTimeGET
|
|
self.server.GETbusy=True
|
|
|
|
if not self._permittedDir(self.path):
|
|
if self.server.debug:
|
|
print('DEBUG: GET Not permitted')
|
|
self._404()
|
|
self.server.GETbusy=False
|
|
return
|
|
# get webfinger endpoint for a person
|
|
if self._webfinger():
|
|
self.server.GETbusy=False
|
|
return
|
|
# get the inbox for a given person
|
|
if self.path.endswith('/inbox'):
|
|
if '/users/' in self.path:
|
|
if self.headers.get('Authorization'):
|
|
if authorize(self.server.baseDir,self.path, \
|
|
self.headers['Authorization'], \
|
|
self.server.debug):
|
|
inboxFeed=personBoxJson(self.server.baseDir, \
|
|
self.server.domain, \
|
|
self.server.port, \
|
|
self.path, \
|
|
self.server.httpPrefix, \
|
|
maxPostsInFeed, 'inbox')
|
|
if inboxFeed:
|
|
self._set_headers('application/json')
|
|
self.wfile.write(json.dumps(inboxFeed).encode('utf-8'))
|
|
self.server.GETbusy=False
|
|
return
|
|
else:
|
|
if self.server.debug:
|
|
print('DEBUG: '+nickname+' was not authorized to access '+self.path)
|
|
if self.server.debug:
|
|
print('DEBUG: GET access to inbox is unauthorized')
|
|
self.send_response(405)
|
|
self.end_headers()
|
|
self.server.POSTbusy=False
|
|
return
|
|
|
|
# get outbox feed for a person
|
|
outboxFeed=personBoxJson(self.server.baseDir,self.server.domain, \
|
|
self.server.port,self.path, \
|
|
self.server.httpPrefix, \
|
|
maxPostsInFeed, 'outbox')
|
|
if outboxFeed:
|
|
self._set_headers('application/json')
|
|
self.wfile.write(json.dumps(outboxFeed).encode('utf-8'))
|
|
self.server.GETbusy=False
|
|
return
|
|
following=getFollowingFeed(self.server.baseDir,self.server.domain, \
|
|
self.server.port,self.path, \
|
|
self.server.httpPrefix,followsPerPage)
|
|
if following:
|
|
self._set_headers('application/json')
|
|
self.wfile.write(json.dumps(following).encode('utf-8'))
|
|
self.server.GETbusy=False
|
|
return
|
|
followers=getFollowingFeed(self.server.baseDir,self.server.domain, \
|
|
self.server.port,self.path, \
|
|
self.server.httpPrefix,followsPerPage,'followers')
|
|
if followers:
|
|
self._set_headers('application/json')
|
|
self.wfile.write(json.dumps(followers).encode('utf-8'))
|
|
self.server.GETbusy=False
|
|
return
|
|
# look up a person
|
|
getPerson = personLookup(self.server.domain,self.path, \
|
|
self.server.baseDir)
|
|
if getPerson:
|
|
self._set_headers('application/json')
|
|
self.wfile.write(json.dumps(getPerson).encode('utf-8'))
|
|
self.server.GETbusy=False
|
|
return
|
|
# check that a json file was requested
|
|
if not self.path.endswith('.json'):
|
|
if self.server.debug:
|
|
print('DEBUG: GET Not json: '+self.path+' '+self.server.baseDir)
|
|
self._404()
|
|
self.server.GETbusy=False
|
|
return
|
|
# check that the file exists
|
|
filename=self.server.baseDir+self.path
|
|
if os.path.isfile(filename):
|
|
self._set_headers('application/json')
|
|
with open(filename, 'r', encoding='utf-8') as File:
|
|
content = File.read()
|
|
contentJson=json.loads(content)
|
|
self.wfile.write(json.dumps(contentJson).encode('utf-8'))
|
|
else:
|
|
if self.server.debug:
|
|
print('DEBUG: GET Unknown file')
|
|
self._404()
|
|
self.server.GETbusy=False
|
|
|
|
def do_HEAD(self):
|
|
self._set_headers('application/json')
|
|
|
|
def do_POST(self):
|
|
if self.server.debug:
|
|
print('DEBUG: POST to from '+self.server.baseDir+' path: '+self.path+' busy: '+str(self.server.POSTbusy))
|
|
if self.server.POSTbusy:
|
|
currTimePOST=int(time.time())
|
|
if currTimePOST-self.server.lastPOST<10:
|
|
self.send_response(429)
|
|
self.end_headers()
|
|
return
|
|
self.server.lastPOST=currTimePOST
|
|
|
|
self.server.POSTbusy=True
|
|
if not self.headers.get('Content-type'):
|
|
print('Content-type header missing')
|
|
self.send_response(400)
|
|
self.end_headers()
|
|
self.server.POSTbusy=False
|
|
return
|
|
|
|
# refuse to receive non-json content
|
|
if self.headers['Content-type'] != 'application/json':
|
|
print("POST is not json: "+self.headers['Content-type'])
|
|
self.send_response(400)
|
|
self.end_headers()
|
|
self.server.POSTbusy=False
|
|
return
|
|
|
|
# remove any trailing slashes from the path
|
|
self.path=self.path.replace('/outbox/','/outbox').replace('/inbox/','/inbox').replace('/sharedInbox/','/sharedInbox')
|
|
|
|
# if this is a POST to teh outbox then check authentication
|
|
self.outboxAuthenticated=False
|
|
self.postToNickname=None
|
|
|
|
if self.path.endswith('/outbox'):
|
|
if '/users/' in self.path:
|
|
if self.headers.get('Authorization'):
|
|
if authorize(self.server.baseDir,self.path,self.headers['Authorization'],self.server.debug):
|
|
self.outboxAuthenticated=True
|
|
pathUsersSection=path.split('/users/')[1]
|
|
self.postToNickname=pathUsersSection.split('/')[0]
|
|
if not self.outboxAuthenticated:
|
|
self.send_response(405)
|
|
self.end_headers()
|
|
self.server.POSTbusy=False
|
|
return
|
|
|
|
# check that the post is to an expected path
|
|
if not (self.path.endswith('/outbox') or \
|
|
self.path.endswith('/inbox') or \
|
|
self.path.endswith('/caps/new') or \
|
|
self.path=='/sharedInbox'):
|
|
print('Attempt to POST to invalid path '+self.path)
|
|
self.send_response(400)
|
|
self.end_headers()
|
|
self.server.POSTbusy=False
|
|
return
|
|
|
|
# read the message and convert it into a python dictionary
|
|
length = int(self.headers['Content-length'])
|
|
if self.server.debug:
|
|
print('DEBUG: content-length: '+str(length))
|
|
if length>maxMessageLength:
|
|
self.send_response(400)
|
|
self.end_headers()
|
|
self.server.POSTbusy=False
|
|
return
|
|
|
|
if self.server.debug:
|
|
print('DEBUG: Reading message')
|
|
|
|
messageBytes=self.rfile.read(length)
|
|
messageJson = json.loads(messageBytes)
|
|
|
|
# https://www.w3.org/TR/activitypub/#object-without-create
|
|
if self.outboxAuthenticated:
|
|
if self._postToOutbox(messageJson):
|
|
self.send_header('Location',messageJson['object']['atomUri'])
|
|
self.send_response(201)
|
|
self.end_headers()
|
|
self.server.POSTbusy=False
|
|
return
|
|
else:
|
|
self.send_response(403)
|
|
self.end_headers()
|
|
self.server.POSTbusy=False
|
|
return
|
|
|
|
# check the necessary properties are available
|
|
if self.server.debug:
|
|
print('DEBUG: Check message has params')
|
|
|
|
if self.path.endswith('/inbox') or \
|
|
self.path=='/sharedInbox':
|
|
if not inboxMessageHasParams(messageJson):
|
|
self.send_response(403)
|
|
self.end_headers()
|
|
self.server.POSTbusy=False
|
|
return
|
|
|
|
if not inboxPermittedMessage(self.server.domain,messageJson,self.server.federationList,self.server.capsList):
|
|
if self.server.debug:
|
|
# https://www.youtube.com/watch?v=K3PrSj9XEu4
|
|
print('DEBUG: Ah Ah Ah')
|
|
self.send_response(403)
|
|
self.end_headers()
|
|
self.server.POSTbusy=False
|
|
return
|
|
|
|
if self.server.debug:
|
|
pprint(messageJson)
|
|
|
|
if not self.headers.get('signature'):
|
|
if 'keyId=' not in self.headers['signature']:
|
|
if self.server.debug:
|
|
print('DEBUG: POST to inbox has no keyId in header signature parameter')
|
|
self.send_response(403)
|
|
self.end_headers()
|
|
self.server.POSTbusy=False
|
|
return
|
|
|
|
if self.server.debug:
|
|
print('DEBUG: POST saving to inbox cache')
|
|
if '/users/' in self.path:
|
|
pathUsersSection=self.path.split('/users/')[1]
|
|
if '/' not in pathUsersSection:
|
|
if self.server.debug:
|
|
print('DEBUG: This is not a users endpoint')
|
|
else:
|
|
self.postToNickname=pathUsersSection.split('/')[0]
|
|
if self.postToNickname:
|
|
if self._updateInboxQueue(self.postToNickname,messageJson):
|
|
return
|
|
self.send_response(403)
|
|
self.end_headers()
|
|
self.server.POSTbusy=False
|
|
return
|
|
else:
|
|
if self.path == '/sharedInbox' or self.path == '/inbox':
|
|
print('DEBUG: POST to shared inbox')
|
|
if self._updateInboxQueue('sharedinbox',messageJson):
|
|
return
|
|
self.send_response(200)
|
|
self.end_headers()
|
|
self.server.POSTbusy=False
|
|
|
|
def runDaemon(baseDir: str,domain: str,port=80,httpPrefix='https',fedList=[],capsList=[],useTor=False,debug=False) -> None:
|
|
if len(domain)==0:
|
|
domain='localhost'
|
|
if '.' not in domain:
|
|
if domain != 'localhost':
|
|
print('Invalid domain: ' + domain)
|
|
return
|
|
|
|
serverAddress = ('', port)
|
|
httpd = ThreadingHTTPServer(serverAddress, PubServer)
|
|
httpd.domain=domain
|
|
httpd.port=port
|
|
httpd.httpPrefix=httpPrefix
|
|
httpd.debug=debug
|
|
httpd.federationList=fedList.copy()
|
|
httpd.capsList=capsList.copy()
|
|
httpd.baseDir=baseDir
|
|
httpd.personCache={}
|
|
httpd.cachedWebfingers={}
|
|
httpd.useTor=useTor
|
|
httpd.session = None
|
|
httpd.sessionLastUpdate=0
|
|
httpd.lastGET=0
|
|
httpd.lastPOST=0
|
|
httpd.GETbusy=False
|
|
httpd.POSTbusy=False
|
|
httpd.receivedMessage=False
|
|
httpd.inboxQueue=[]
|
|
httpd.sendThreads=[]
|
|
httpd.postLog=[]
|
|
print('Running ActivityPub daemon on ' + domain + ' port ' + str(port))
|
|
httpd.thrInboxQueue=threadWithTrace(target=runInboxQueue,args=(baseDir,httpPrefix,httpd.sendThreads,httpd.postLog,httpd.cachedWebfingers,httpd.personCache,httpd.inboxQueue,domain,port,useTor,httpd.federationList,debug),daemon=True)
|
|
httpd.thrInboxQueue.start()
|
|
httpd.serve_forever()
|