def construct(payload, isEncrypted=True): '''Factory constructor using a given payload and extracting the fields''' if not payload: return None signatureKey = None if isEncrypted: # Decrypt the payload with our key decrypted, signatureKey = CryptoClient.decryptAndCheckSignature( payload) else: decrypted = payload if decrypted: print("Asymmetric message, length of decrypted is", len(decrypted)) else: print("Asymmetric message has no decrypted") # Separate fields of message into common ones and the type-specific payload msgType, subpayload, tstmp = AsymmetricMessage._stripFields(decrypted) print("Recovered timestamp='", tstmp, "' (", len(tstmp), ")") # Find a suitable subclass to call using the messageType msg = None if msgType == Message.TYPE_CONTACT_RESPONSE: msg = ContactResponseMessage.constructFrom(subpayload) elif msgType == Message.TYPE_STATUS_NOTIFY: msg = StatusNotifyMessage.constructFrom(subpayload) elif msgType == Message.TYPE_ASYM_MESSAGE: msg = RegularMessage.constructFrom(subpayload) elif msgType == Message.TYPE_INFO_REQUEST: msg = InfoRequestMessage.constructFrom(subpayload) elif msgType == Message.TYPE_INFO_RESPONSE: msg = InfoResponseMessage.constructFrom(subpayload) elif msgType == Message.TYPE_FRIEND_REFERRAL: msg = ContactReferralMessage.constructFrom(subpayload) elif msgType == Message.TYPE_FRIENDREFER_REQUEST: msg = ContactReferRequestMessage.constructFrom(subpayload) # Ask the message if it's ok to have no signature if isEncrypted and msg: if msg.acceptUnrecognisedSignature(): # Save the encrypted contents so we can verify it later msg.encryptedContents = payload elif not signatureKey: msg = None if msg: try: msgTimestamp = tstmp.decode('utf-8') except: msgTimestamp = msg.makeCurrentTimestamp() msg.timestamp = Message.convertTimestampFromString(msgTimestamp) msg.signatureKeyId = signatureKey if signatureKey: print( "Asymm setting senderId because I've got a signatureKey: '%s'" % signatureKey) signatureId = DbI.findUserIdFromKeyId(signatureKey) if signatureId: msg.senderId = signatureId return msg
def construct(payload, isEncrypted): '''Construct a message from its payload''' originalPayload, signKey = CryptoClient.verifySignedData( payload) if isEncrypted else (payload, None) if originalPayload: # The payload could be verified and extracted, but we still don't know # if the contents are for me or for somebody else (probably for somebody else!) messageForMe = Message.MessageFromReceivedData( originalPayload, isEncrypted) if messageForMe: return messageForMe else: msg = RelayingMessage(rcvdBytes=originalPayload) msg.senderId = DbI.findUserIdFromKeyId(signKey) return msg
def servePage(self, view, url, params): self.requirePageResources( ['button-compose.png', 'default.css', 'jquery-3.1.1.js']) DbI.exportAllAvatars(Config.getWebCacheDir()) messageList = None if url == "/send": print("send message of type '%(messageType)s' to id '%(sendTo)s'" % params) if params['messageType'] == "contactresponse": torId = params['sendTo'] if params.get("accept", "0") == "1": ContactMaker.handleAccept(torId) # Make sure this new contact has an empty avatar DbI.exportAllAvatars(Config.getWebCacheDir()) outmsg = message.ContactResponseMessage( message=params['messageBody']) else: ContactMaker.handleDeny(torId) outmsg = message.ContactDenyMessage() # Construct a ContactResponse message object for sending outmsg.recipients = [params['sendTo']] DbI.addToOutbox(outmsg) elif url.startswith("/delete/"): DbI.deleteFromInbox(params.get("msgId", "")) elif url in ["/search", "/search/"]: messageList = DbI.searchInboxMessages(params.get("searchTerm")) # Make dictionary to convert ids to names contactNames = { c['torid']: c['displayName'] for c in DbI.getProfiles() } unknownSender = I18nManager.getText("messages.sender.unknown") unknownRecpt = I18nManager.getText("messages.recpt.unknown") # Get contact requests, responses and mails from inbox conreqs = [] conresps = [] mailTree = MessageTree() if messageList is None: messageList = DbI.getInboxMessages() # TODO: Paging options? for m in messageList: if not m: continue m['msgId'] = str(m.get("_id", "")) if m['messageType'] == "contactrequest": conreqs.append(m) elif m['messageType'] == "contactrefer": senderId = m.get('fromId', None) m['senderName'] = contactNames.get(senderId, unknownSender) conreqs.append(m) elif m['messageType'] == "contactresponse": if not m.get('accepted', False): m['messageBody'] = I18nManager.getText( "messages.contactrequest.refused") m['fromName'] = DbI.getProfile(m['fromId'])["displayName"] elif not m.get('messageBody', False): m['messageBody'] = I18nManager.getText( "messages.contactrequest.accepted") conresps.append(m) else: senderId = m.get('fromId', None) if not senderId and m.get('signatureKeyId', None): senderId = DbI.findUserIdFromKeyId(m['signatureKeyId']) m['senderName'] = contactNames.get(senderId, unknownSender) m['sentTimeStr'] = self.makeLocalTimeString(m['timestamp']) # Split m['recipients'] by commas, and look up each id with contactNames recpts = m.get('recipients', '') if recpts: replyAll = recpts.split(",") m['recipients'] = ", ".join( [contactNames.get(i, unknownRecpt) for i in replyAll]) replyAll.append(senderId) m['replyAll'] = ",".join(replyAll) else: m['recipients'] = unknownRecpt m['replyAll'] = "" mailTree.addMsg(m) mails = mailTree.build() bodytext = self.messagestemplate.getHtml({ "contactrequests": conreqs, "contactresponses": conresps, "mails": mails, "nummessages": len(conreqs) + len(conresps) + len(mails), "webcachedir": Config.getWebCacheDir() }) contents = self.buildPage({ 'pageTitle': I18nManager.getText("messages.title"), 'pageBody': bodytext, 'pageFooter': "<p>Footer</p>" }) view.setHtml(contents)