signal-desktop/js/delivery_receipts.js

112 lines
3.1 KiB
JavaScript

/* global Backbone: false */
/* global Whisper: false */
/* global ConversationController: false */
/* global _: false */
/* eslint-disable more/no-then */
// eslint-disable-next-line func-names
(function() {
'use strict';
window.Whisper = window.Whisper || {};
Whisper.DeliveryReceipts = new (Backbone.Collection.extend({
forMessage(conversation, message) {
let recipients;
if (conversation.isPrivate()) {
recipients = [conversation.id];
} else {
recipients = conversation.get('members') || [];
}
const receipts = this.filter(
receipt =>
receipt.get('timestamp') === message.get('sent_at') &&
recipients.indexOf(receipt.get('source')) > -1
);
this.remove(receipts);
return receipts;
},
async getTargetMessage(source, messages) {
if (messages.length === 0) {
return null;
}
const message = messages.find(
item => !item.isIncoming() && source === item.get('conversationId')
);
if (message) {
return message;
}
const groups = new Whisper.GroupCollection();
await groups.fetchGroups(source);
const ids = groups.pluck('id');
ids.push(source);
return messages.find(
item =>
!item.isIncoming() && _.contains(ids, item.get('conversationId'))
);
},
async onReceipt(receipt) {
try {
const messages = await window.Signal.Data.getMessagesBySentAt(
receipt.get('timestamp'),
{
MessageCollection: Whisper.MessageCollection,
}
);
const message = await this.getTargetMessage(
receipt.get('source'),
messages
);
if (!message) {
window.log.info(
'No message for delivery receipt',
receipt.get('source'),
receipt.get('timestamp')
);
return;
}
const deliveries = message.get('delivered') || 0;
const deliveredTo = message.get('delivered_to') || [];
const expirationStartTimestamp = message.get(
'expirationStartTimestamp'
);
message.set({
delivered_to: _.union(deliveredTo, [receipt.get('source')]),
delivered: deliveries + 1,
expirationStartTimestamp: expirationStartTimestamp || Date.now(),
sent: true,
});
if (message.isExpiring() && !expirationStartTimestamp) {
// This will save the message for us while starting the timer
await message.setToExpire();
} else {
await window.Signal.Data.saveMessage(message.attributes, {
Message: Whisper.Message,
});
}
// notify frontend listeners
const conversation = ConversationController.get(
message.get('conversationId')
);
if (conversation) {
conversation.trigger('delivered', message);
}
this.remove(receipt);
} catch (error) {
window.log.error(
'DeliveryReceipts.onReceipt error:',
error && error.stack ? error.stack : error
);
}
},
}))();
})();