621 lines
		
	
	
	
		
			20 KiB
			
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			621 lines
		
	
	
	
		
			20 KiB
			
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
/*
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 * vim: ts=4:sw=4:expandtab
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 */
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(function () {
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  'use strict';
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   window.Whisper = window.Whisper || {};
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   // TODO: Factor out private and group subclasses of Conversation
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   var COLORS = [
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        'red',
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        'pink',
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        'purple',
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        'deep_purple',
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        'indigo',
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        'blue',
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        'light_blue',
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        'cyan',
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        'teal',
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        'green',
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        'light_green',
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        'orange',
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        'deep_orange',
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        'amber',
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        'blue_grey',
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    ];
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  Whisper.Conversation = Backbone.Model.extend({
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    database: Whisper.Database,
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    storeName: 'conversations',
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    defaults: function() {
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      return { unreadCount : 0 };
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    },
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    initialize: function() {
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        this.contactCollection = new Backbone.Collection();
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        this.messageCollection = new Whisper.MessageCollection([], {
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            conversation: this
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        });
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        this.on('change:avatar', this.updateAvatarUrl);
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        this.on('destroy', this.revokeAvatarUrl);
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        this.on('read', this.onReadMessage);
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        this.fetchContacts().then(function() {
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            this.contactCollection.each(function(contact) {
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                textsecure.storage.protocol.on('keychange:' + contact.id, function() {
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                    this.addKeyChange(contact.id);
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                }.bind(this));
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            }.bind(this));
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        }.bind(this));
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    },
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    addKeyChange: function(id) {
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        var now = Date.now();
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        var message = this.messageCollection.add({
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            conversationId : this.id,
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            type           : 'keychange',
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            sent_at        : now,
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            received_at    : now,
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            key_changed    : id
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        });
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        message.save();
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    },
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    onReadMessage: function(message) {
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        if (this.messageCollection.get(message.id)) {
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            this.messageCollection.get(message.id).fetch();
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        }
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        return this.getUnread().then(function(unreadMessages) {
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            this.save({unreadCount: unreadMessages.length});
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        }.bind(this));
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    },
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    getUnread: function() {
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        var conversationId = this.id;
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        var unreadMessages = new Whisper.MessageCollection();
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        return new Promise(function(resolve) {
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            return unreadMessages.fetch({
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                index: {
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                    // 'unread' index
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                    name  : 'unread',
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                    lower : [conversationId],
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                    upper : [conversationId, Number.MAX_VALUE],
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                }
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            }).always(function() {
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                resolve(unreadMessages);
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            });
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        });
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    },
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    validate: function(attributes, options) {
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        var required = ['id', 'type'];
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        var missing = _.filter(required, function(attr) { return !attributes[attr]; });
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        if (missing.length) { return "Conversation must have " + missing; }
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        if (attributes.type !== 'private' && attributes.type !== 'group') {
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            return "Invalid conversation type: " + attributes.type;
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        }
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        var error = this.validateNumber();
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        if (error) { return error; }
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        this.updateTokens();
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    },
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    validateNumber: function() {
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        if (this.isPrivate()) {
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            var regionCode = storage.get('regionCode');
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            var number = libphonenumber.util.parseNumber(this.id, regionCode);
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            if (number.isValidNumber) {
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                this.set({ id: number.e164 });
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            } else {
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                return number.error || "Invalid phone number";
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            }
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        }
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    },
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    updateTokens: function() {
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        var tokens = [];
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        var name = this.get('name');
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        if (typeof name === 'string') {
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            tokens.push(name.toLowerCase());
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            tokens = tokens.concat(name.trim().toLowerCase().split(/[\s\-_\(\)\+]+/));
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        }
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        if (this.isPrivate()) {
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            var regionCode = storage.get('regionCode');
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            var number = libphonenumber.util.parseNumber(this.id, regionCode);
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            tokens.push(
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                number.nationalNumber,
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                number.countryCode + number.nationalNumber
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            );
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        }
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        this.set({tokens: tokens});
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    },
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    queueJob: function(callback) {
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        var previous = this.pending || Promise.resolve();
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        var current = this.pending = previous.then(callback, callback);
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        current.then(function() {
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            if (this.pending === current) {
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                delete this.pending;
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            }
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        }.bind(this));
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        return current;
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    },
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    sendMessage: function(body, attachments) {
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        this.queueJob(function() {
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            var now = Date.now();
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            var message = this.messageCollection.add({
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                body           : body,
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                conversationId : this.id,
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                type           : 'outgoing',
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                attachments    : attachments,
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                sent_at        : now,
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                received_at    : now,
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                expireTimer    : this.get('expireTimer')
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            });
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            if (this.isPrivate()) {
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                message.set({destination: this.id});
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            }
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            message.save();
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            this.save({
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                unreadCount : 0,
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                active_at   : now,
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                timestamp   : now,
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                lastMessage : message.getNotificationText()
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            });
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            var sendFunc;
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            if (this.get('type') == 'private') {
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                sendFunc = textsecure.messaging.sendMessageToNumber;
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            }
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            else {
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                sendFunc = textsecure.messaging.sendMessageToGroup;
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            }
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            message.send(sendFunc(this.get('id'), body, attachments, now, this.get('expireTimer')));
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        }.bind(this));
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    },
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    updateLastMessage: function() {
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        var lastMessage = this.messageCollection.at(this.messageCollection.length - 1);
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        if (lastMessage) {
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          this.save({
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            lastMessage : lastMessage.getNotificationText(),
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            timestamp   : lastMessage.get('sent_at')
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          });
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        } else {
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          this.save({ lastMessage: '', timestamp: null });
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        }
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    },
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    addExpirationTimerUpdate: function(expireTimer, source, received_at) {
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        received_at = received_at || Date.now();
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        this.save({ expireTimer: expireTimer });
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        var message = this.messageCollection.add({
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            conversationId        : this.id,
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            type                  : 'outgoing',
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            sent_at               : received_at,
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            received_at           : received_at,
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            flags                 : textsecure.protobuf.DataMessage.Flags.EXPIRATION_TIMER_UPDATE,
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            expirationTimerUpdate : {
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              expireTimer    : expireTimer,
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              source         : source
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            }
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        });
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        if (this.isPrivate()) {
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            message.set({destination: this.id});
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        }
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        message.save();
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        return message;
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    },
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    sendExpirationTimerUpdate: function(time) {
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        var message = this.addExpirationTimerUpdate(time, textsecure.storage.user.getNumber());
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        var sendFunc;
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        if (this.get('type') == 'private') {
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            sendFunc = textsecure.messaging.sendExpirationTimerUpdateToNumber;
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        }
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        else {
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            sendFunc = textsecure.messaging.sendExpirationTimerUpdateToGroup;
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        }
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        message.send(sendFunc(this.get('id'), this.get('expireTimer'), message.get('sent_at')));
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    },
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    isSearchable: function() {
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        return !this.get('left') || !!this.get('lastMessage');
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    },
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    endSession: function() {
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        if (this.isPrivate()) {
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            var now = Date.now();
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            var message = this.messageCollection.create({
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                conversationId : this.id,
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                type           : 'outgoing',
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                sent_at        : now,
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                received_at    : now,
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                destination    : this.id,
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                flags          : textsecure.protobuf.DataMessage.Flags.END_SESSION
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            });
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            message.send(textsecure.messaging.closeSession(this.id, now));
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        }
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    },
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    updateGroup: function(group_update) {
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        if (this.isPrivate()) {
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            throw new Error("Called update group on private conversation");
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        }
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        if (group_update === undefined) {
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            group_update = this.pick(['name', 'avatar', 'members']);
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        }
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        var now = Date.now();
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        var message = this.messageCollection.create({
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            conversationId : this.id,
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            type           : 'outgoing',
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            sent_at        : now,
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            received_at    : now,
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            group_update   : group_update
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        });
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        message.send(textsecure.messaging.updateGroup(
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            this.id,
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            this.get('name'),
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            this.get('avatar'),
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            this.get('members')
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        ));
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    },
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    leaveGroup: function() {
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        var now = Date.now();
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        if (this.get('type') === 'group') {
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            this.save({left: true});
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            var message = this.messageCollection.create({
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                group_update: { left: 'You' },
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                conversationId : this.id,
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                type           : 'outgoing',
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                sent_at        : now,
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                received_at    : now
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            });
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            message.send(textsecure.messaging.leaveGroup(this.id));
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        }
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    },
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    markRead: function() {
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        if (this.get('unreadCount') > 0) {
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            this.save({ unreadCount: 0 });
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            var conversationId = this.id;
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            Whisper.Notifications.remove(Whisper.Notifications.where({
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                conversationId: conversationId
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            }));
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            this.getUnread().then(function(unreadMessages) {
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                var read = unreadMessages.map(function(m) {
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                    if (this.messageCollection.get(m.id)) {
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                        m = this.messageCollection.get(m.id);
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                    }
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                    m.markRead();
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                    return {
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                        sender    : m.get('source'),
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                        timestamp : m.get('sent_at')
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                    };
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                }.bind(this));
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                if (read.length > 0) {
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                    console.log('Sending', read.length, 'read receipts');
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                    textsecure.messaging.syncReadMessages(read);
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                }
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            }.bind(this));
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        }
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    },
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    fetchMessages: function() {
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        if (!this.id) { return false; }
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        return this.messageCollection.fetchConversation(this.id);
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    },
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    fetchContacts: function(options) {
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        return new Promise(function(resolve) {
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            if (this.isPrivate()) {
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                this.contactCollection.reset([this]);
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                resolve();
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            } else {
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                var promises = [];
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                var members = this.get('members') || [];
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                this.contactCollection.reset(
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                    members.map(function(number) {
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                        var c = ConversationController.create({
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                            id   : number,
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                            type : 'private'
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                        });
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                        promises.push(new Promise(function(resolve) {
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                            c.fetch().always(resolve);
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                        }));
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                        return c;
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                    }.bind(this))
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                );
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                resolve(Promise.all(promises));
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            }
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        }.bind(this));
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    },
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    destroyMessages: function() {
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        this.messageCollection.fetch({
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            index: {
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                // 'conversation' index on [conversationId, received_at]
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                name  : 'conversation',
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                lower : [this.id],
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                upper : [this.id, Number.MAX_VALUE],
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            }
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        }).then(function() {
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            var models = this.messageCollection.models;
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            this.messageCollection.reset([]);
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            _.each(models, function(message) { message.destroy(); });
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            this.save({lastMessage: null, timestamp: null}); // archive
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        }.bind(this));
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    },
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    getName: function() {
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        if (this.isPrivate()) {
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            return this.get('name');
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        } else {
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            return this.get('name') || 'Unknown group';
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        }
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    },
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    getTitle: function() {
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        if (this.isPrivate()) {
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            return this.get('name') || this.getNumber();
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        } else {
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            return this.get('name') || 'Unknown group';
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        }
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    },
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    getNumber: function() {
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        if (!this.isPrivate()) {
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            return '';
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        }
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        var number = this.id;
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        try {
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            var parsedNumber = libphonenumber.parse(number);
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            var regionCode = libphonenumber.getRegionCodeForNumber(parsedNumber);
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            if (regionCode === storage.get('regionCode')) {
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                return libphonenumber.format(parsedNumber, libphonenumber.PhoneNumberFormat.NATIONAL);
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            } else {
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                return libphonenumber.format(parsedNumber, libphonenumber.PhoneNumberFormat.INTERNATIONAL);
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            }
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        } catch (e) {
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            return number;
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        }
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    },
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    isPrivate: function() {
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        return this.get('type') === 'private';
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    },
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    revokeAvatarUrl: function() {
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        if (this.avatarUrl) {
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            URL.revokeObjectURL(this.avatarUrl);
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            this.avatarUrl = null;
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        }
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    },
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 | 
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    updateAvatarUrl: function(silent) {
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        this.revokeAvatarUrl();
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						|
        var avatar = this.get('avatar');
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						|
        if (avatar) {
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            this.avatarUrl = URL.createObjectURL(
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                new Blob([avatar.data], {type: avatar.contentType})
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            );
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						|
        } else {
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						|
            this.avatarUrl = null;
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						|
        }
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						|
        if (!silent) {
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						|
            this.trigger('change');
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						|
        }
 | 
						|
    },
 | 
						|
    getColor: function() {
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						|
        var title = this.get('name');
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						|
        var color = this.get('color');
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						|
        if (!color) {
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						|
            if (this.isPrivate()) {
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						|
                if (title) {
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						|
                    color = COLORS[Math.abs(this.hashCode()) % 15];
 | 
						|
                } else {
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						|
                    color = 'grey';
 | 
						|
                }
 | 
						|
            } else {
 | 
						|
                color = 'default';
 | 
						|
            }
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						|
        }
 | 
						|
        return color;
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						|
    },
 | 
						|
    getAvatar: function() {
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						|
        if (this.avatarUrl === undefined) {
 | 
						|
            this.updateAvatarUrl(true);
 | 
						|
        }
 | 
						|
 | 
						|
        var title = this.get('name');
 | 
						|
        var color = this.getColor();
 | 
						|
 | 
						|
        if (this.avatarUrl) {
 | 
						|
            return { url: this.avatarUrl, color: color };
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						|
        } else if (this.isPrivate()) {
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						|
            return {
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						|
                color: color,
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						|
                content: title ? title.trim()[0] : '#'
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						|
            };
 | 
						|
        } else {
 | 
						|
            return { url: '/images/group_default.png', color: color };
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						|
        }
 | 
						|
    },
 | 
						|
 | 
						|
    getNotificationIcon: function() {
 | 
						|
        return new Promise(function(resolve) {
 | 
						|
            var avatar = this.getAvatar();
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						|
            if (avatar.url) {
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						|
                resolve(avatar.url);
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						|
            } else {
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						|
                resolve(new Whisper.IdenticonSVGView(avatar).getDataUrl());
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						|
            }
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						|
        }.bind(this));
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						|
    },
 | 
						|
 | 
						|
    resolveConflicts: function(conflict) {
 | 
						|
        var number = conflict.number;
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						|
        var identityKey = conflict.identityKey;
 | 
						|
        if (this.isPrivate()) {
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						|
            number = this.id;
 | 
						|
        } else if (!_.include(this.get('members'), number)) {
 | 
						|
            throw 'Tried to resolve conflicts for a unknown group member';
 | 
						|
        }
 | 
						|
 | 
						|
        if (!this.messageCollection.hasKeyConflicts()) {
 | 
						|
            throw 'No conflicts to resolve';
 | 
						|
        }
 | 
						|
 | 
						|
        return textsecure.storage.protocol.removeIdentityKey(number).then(function() {
 | 
						|
            return textsecure.storage.protocol.saveIdentity(number, identityKey).then(function() {
 | 
						|
                var promise = Promise.resolve();
 | 
						|
                var conflicts = this.messageCollection.filter(function(message) {
 | 
						|
                    return message.hasKeyConflict(number);
 | 
						|
                });
 | 
						|
                // group incoming & outgoing
 | 
						|
                conflicts = _.groupBy(conflicts, function(m) { return m.get('type'); });
 | 
						|
                // sort each group by date and concatenate outgoing after incoming
 | 
						|
                conflicts = _.flatten([
 | 
						|
                    _.sortBy(conflicts.incoming, function(m) { return m.get('received_at'); }),
 | 
						|
                    _.sortBy(conflicts.outgoing, function(m) { return m.get('received_at'); }),
 | 
						|
                ]).forEach(function(message) {
 | 
						|
                    var resolveConflict = function() {
 | 
						|
                        return message.resolveConflict(number);
 | 
						|
                    };
 | 
						|
                    promise = promise.then(resolveConflict, resolveConflict);
 | 
						|
                });
 | 
						|
                return promise;
 | 
						|
            }.bind(this));
 | 
						|
        }.bind(this));
 | 
						|
    },
 | 
						|
    notify: function(message) {
 | 
						|
        if (!message.isIncoming()) {
 | 
						|
            return;
 | 
						|
        }
 | 
						|
        if (window.isOpen() && window.isFocused()) {
 | 
						|
            return;
 | 
						|
        }
 | 
						|
        window.drawAttention();
 | 
						|
        var sender = ConversationController.create({
 | 
						|
            id: message.get('source'), type: 'private'
 | 
						|
        });
 | 
						|
        var conversationId = this.id;
 | 
						|
        sender.fetch().then(function() {
 | 
						|
            sender.getNotificationIcon().then(function(iconUrl) {
 | 
						|
                console.log('adding notification');
 | 
						|
                Whisper.Notifications.add({
 | 
						|
                    title          : sender.getTitle(),
 | 
						|
                    message        : message.getNotificationText(),
 | 
						|
                    iconUrl        : iconUrl,
 | 
						|
                    imageUrl       : message.getImageUrl(),
 | 
						|
                    conversationId : conversationId,
 | 
						|
                    messageId      : message.id
 | 
						|
                });
 | 
						|
            });
 | 
						|
        });
 | 
						|
    },
 | 
						|
    hashCode: function() {
 | 
						|
        if (this.hash === undefined) {
 | 
						|
            var string = this.getTitle() || '';
 | 
						|
            if (string.length === 0) {
 | 
						|
                return 0;
 | 
						|
            }
 | 
						|
            var hash = 0;
 | 
						|
            for (var i = 0; i < string.length; i++) {
 | 
						|
                hash = ((hash<<5)-hash) + string.charCodeAt(i);
 | 
						|
                hash = hash & hash; // Convert to 32bit integer
 | 
						|
            }
 | 
						|
 | 
						|
            this.hash = hash;
 | 
						|
        }
 | 
						|
        return this.hash;
 | 
						|
    }
 | 
						|
  });
 | 
						|
 | 
						|
  Whisper.ConversationCollection = Backbone.Collection.extend({
 | 
						|
    database: Whisper.Database,
 | 
						|
    storeName: 'conversations',
 | 
						|
    model: Whisper.Conversation,
 | 
						|
 | 
						|
    comparator: function(m) {
 | 
						|
      return -m.get('timestamp');
 | 
						|
    },
 | 
						|
 | 
						|
    destroyAll: function () {
 | 
						|
        return Promise.all(this.models.map(function(m) {
 | 
						|
            return new Promise(function(resolve, reject) {
 | 
						|
                m.destroy().then(resolve).fail(reject);
 | 
						|
            });
 | 
						|
        }));
 | 
						|
    },
 | 
						|
 | 
						|
    search: function(query) {
 | 
						|
        query = query.trim().toLowerCase();
 | 
						|
        if (query.length > 0) {
 | 
						|
            query = query.replace(/[-.\(\)]*/g,'').replace(/^\+(\d*)$/, '$1');
 | 
						|
            var lastCharCode = query.charCodeAt(query.length - 1);
 | 
						|
            var nextChar = String.fromCharCode(lastCharCode + 1);
 | 
						|
            var upper = query.slice(0, -1) + nextChar;
 | 
						|
            return new Promise(function(resolve) {
 | 
						|
                this.fetch({
 | 
						|
                    index: {
 | 
						|
                        name: 'search', // 'search' index on tokens array
 | 
						|
                        lower: query,
 | 
						|
                        upper: upper,
 | 
						|
                        excludeUpper: true
 | 
						|
                    }
 | 
						|
                }).always(resolve);
 | 
						|
            }.bind(this));
 | 
						|
        }
 | 
						|
    },
 | 
						|
 | 
						|
    fetchAlphabetical: function() {
 | 
						|
        return new Promise(function(resolve) {
 | 
						|
            this.fetch({
 | 
						|
                index: {
 | 
						|
                    name: 'search', // 'search' index on tokens array
 | 
						|
                },
 | 
						|
                limit: 100
 | 
						|
            }).always(resolve);
 | 
						|
        }.bind(this));
 | 
						|
    },
 | 
						|
 | 
						|
    fetchGroups: function(number) {
 | 
						|
        return new Promise(function(resolve) {
 | 
						|
            this.fetch({
 | 
						|
                index: {
 | 
						|
                    name: 'group',
 | 
						|
                    only: number
 | 
						|
                }
 | 
						|
            }).always(resolve);
 | 
						|
        }.bind(this));
 | 
						|
    },
 | 
						|
 | 
						|
    fetchActive: function() {
 | 
						|
        // Ensures all active conversations are included in this collection,
 | 
						|
        // and updates their attributes, but removes nothing.
 | 
						|
        return this.fetch({
 | 
						|
            index: {
 | 
						|
                name: 'inbox', // 'inbox' index on active_at
 | 
						|
                order: 'desc'  // ORDER timestamp DESC
 | 
						|
                // TODO pagination/infinite scroll
 | 
						|
                // limit: 10, offset: page*10,
 | 
						|
            },
 | 
						|
            remove: false
 | 
						|
        });
 | 
						|
    }
 | 
						|
  });
 | 
						|
 | 
						|
  Whisper.Conversation.COLORS = COLORS.concat(['grey', 'default']).join(' ');
 | 
						|
})();
 |