node-red-contrib-matrix-chat/src/matrix-receive.js

137 lines
5.4 KiB
JavaScript

module.exports = function(RED) {
function MatrixReceiveMessage(n) {
RED.nodes.createNode(this, n);
let node = this;
this.name = n.name;
this.server = RED.nodes.getNode(n.server);
this.acceptText = n.acceptText;
this.acceptEmotes = n.acceptEmotes;
this.acceptStickers = n.acceptStickers;
this.acceptReactions = n.acceptReactions;
this.acceptFiles = n.acceptFiles;
this.acceptImages = n.acceptImages;
this.roomId = n.roomId;
this.roomIds = this.roomId ? this.roomId.split(',') : [];
node.status({ fill: "red", shape: "ring", text: "disconnected" });
if (!node.server) {
node.error("No configuration node");
return;
}
node.server.on("disconnected", function() {
node.status({ fill: "red", shape: "ring", text: "disconnected" });
});
node.server.on("connected", function() {
node.status({ fill: "green", shape: "ring", text: "connected" });
});
node.server.on("Room.timeline", async function(event, room, toStartOfTimeline, data) {
if (toStartOfTimeline) {
return; // ignore paginated results
}
if (!event.getSender() || event.getSender() === node.server.userId) {
return; // ignore our own messages
}
if (!event.getUnsigned() || event.getUnsigned().age > 1000) {
return; // ignore old messages
}
// if node has a room ID set we only listen on that room
if(node.roomIds.length && node.roomIds.indexOf(room.roomId) === -1) {
return;
}
try {
await node.server.matrixClient.decryptEventIfNeeded(event);
} catch (error) {
node.error(error);
return;
}
let msg = {
encrypted : event.isEncrypted(),
redacted : event.isRedacted(),
content : event.getContent(),
type : (event.getContent()['msgtype'] || event.getType()) || null,
payload : (event.getContent()['body'] || event.getContent()) || null,
userId : event.getSender(),
topic : event.getRoomId(),
eventId : event.getId(),
event : event,
};
node.log("Received" + (msg.encrypted ? ' encrypted' : '') +" timeline event [" + msg.type + "]: (" + room.name + ") " + event.getSender() + " :: " + msg.content.body);
switch(msg.type) {
case 'm.emote':
if(!node.acceptEmotes) return;
break;
case 'm.text':
if(!node.acceptText) return;
break;
case 'm.sticker':
if(!node.acceptStickers) return;
if(msg.content.info) {
if(msg.content.info.thumbnail_url) {
msg.thumbnail_url = node.server.matrixClient.mxcUrlToHttp(msg.content.info.thumbnail_url);
msg.thumbnail_mxc_url = msg.content.info.thumbnail_url;
}
if(msg.content.url) {
msg.url = node.server.matrixClient.mxcUrlToHttp(msg.content.url);
msg.mxc_url = msg.content.url;
}
}
break;
case 'm.file':
if(!node.acceptFiles) return;
if(msg.encrypted) {
msg.url = node.server.matrixClient.mxcUrlToHttp(msg.content.file.url);
msg.mxc_url = msg.content.file.url;
} else {
msg.url = node.server.matrixClient.mxcUrlToHttp(msg.content.url);
msg.mxc_url = msg.content.url;
}
break;
case 'm.image':
if(!node.acceptImages) return;
if(msg.encrypted) {
msg.url = node.server.matrixClient.mxcUrlToHttp(msg.content.file.url);
msg.mxc_url = msg.content.file.url;
msg.thumbnail_url = node.server.matrixClient.mxcUrlToHttp(msg.content.info.thumbnail_file.url);
msg.thumbnail_mxc_url = msg.content.info.thumbnail_file.url;
} else {
msg.url = node.server.matrixClient.mxcUrlToHttp(msg.content.url);
msg.mxc_url = msg.content.url;
msg.thumbnail_url = node.server.matrixClient.mxcUrlToHttp(msg.content.info.thumbnail_url);
msg.thumbnail_mxc_url = msg.content.info.thumbnail_url;
}
break;
case 'm.reaction':
if(!node.acceptReactions) return;
msg.info = msg.content["m.relates_to"].info;
msg.referenceEventId = msg.content["m.relates_to"].event_id;
msg.payload = msg.content["m.relates_to"].key;
break;
default:
// node.warn("Unknown event type: " + msg.type);
return;
}
node.send(msg);
});
}
RED.nodes.registerType("matrix-receive", MatrixReceiveMessage);
}