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80 lines
3.3 KiB
JavaScript
80 lines
3.3 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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Whisper.DeliveryReceipts = new (Backbone.Collection.extend({
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forMessage: function(conversation, message) {
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var recipients;
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if (conversation.isPrivate()) {
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recipients = [ conversation.id ];
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} else {
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recipients = conversation.get('members') || [];
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}
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var receipts = this.filter(function(receipt) {
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return (receipt.get('timestamp') === message.get('sent_at')) &&
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(recipients.indexOf(receipt.get('source')) > -1);
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});
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this.remove(receipts);
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return receipts;
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},
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onReceipt: function(receipt) {
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var messages = new Whisper.MessageCollection();
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return messages.fetchSentAt(receipt.get('timestamp')).then(function() {
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if (messages.length === 0) { return; }
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var message = messages.find(function(message) {
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return (!message.isIncoming() && receipt.get('source') === message.get('conversationId'));
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});
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if (message) { return message; }
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var groups = new Whisper.GroupCollection();
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return groups.fetchGroups(receipt.get('source')).then(function() {
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var ids = groups.pluck('id');
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ids.push(receipt.get('source'));
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return messages.find(function(message) {
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return (!message.isIncoming() &&
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_.contains(ids, message.get('conversationId')));
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});
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});
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}).then(function(message) {
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if (message) {
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var deliveries = message.get('delivered') || 0;
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var delivered_to = message.get('delivered_to') || [];
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return new Promise(function(resolve, reject) {
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message.save({
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delivered_to: _.union(delivered_to, [receipt.get('source')]),
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delivered: deliveries + 1
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}).then(function() {
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// notify frontend listeners
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var conversation = ConversationController.get(
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message.get('conversationId')
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);
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if (conversation) {
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conversation.trigger('delivered', message);
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}
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this.remove(receipt);
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resolve();
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}.bind(this), reject);
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}.bind(this));
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// TODO: consider keeping a list of numbers we've
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// successfully delivered to?
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} else {
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console.log(
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'No message for delivery receipt',
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receipt.get('source'),
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receipt.get('timestamp')
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);
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}
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}.bind(this)).catch(function(error) {
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console.log(
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'DeliveryReceipts.onReceipt error:',
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error && error.stack ? error.stack : error
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);
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});
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}
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}))();
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})();
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