#102 Added new node for file uploading

#102 File upload node automatically detects mime type from name
#102 File upload node automatically fills in information for m.video, m.audio, and m.image (resolution, duration, etc)
#102 File upload node can generate a thumbnail for videos
#102 Send message node now accepts an object to override the message content
This commit is contained in:
Skylar Sadlier 2023-11-05 00:06:52 -06:00
parent d7c4bc26bb
commit e8506d8887
8 changed files with 838 additions and 151 deletions

250
package-lock.json generated
View File

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@ -21949,8 +22003,6 @@
"version": "1.0.2",
"resolved": "https://registry.npmjs.org/image-size/-/image-size-1.0.2.tgz",
"integrity": "sha512-xfOoWjceHntRb3qFCrh5ZFORYH8XCdYpASltMhZ/Q0KZiOwjdE/Yl2QCiWdwD+lygV5bMCvauzgu5PxBX/Yerg==",
"optional": true,
"peer": true,
"requires": {
"queue": "6.0.2"
}
@ -21998,8 +22050,6 @@
"version": "1.0.6",
"resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
"integrity": "sha512-k92I/b08q4wvFscXCLvqfsHCrjrF7yiXsQuIVvVE7N82W3+aqpzuUdBbfhWcy/FZR3/4IgflMgKLOsvPDrGCJA==",
"optional": true,
"peer": true,
"requires": {
"once": "^1.3.0",
"wrappy": "1"
@ -22008,9 +22058,7 @@
"inherits": {
"version": "2.0.4",
"resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
"integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
"optional": true,
"peer": true
"integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
},
"ini": {
"version": "1.3.8",
@ -22242,9 +22290,7 @@
"isexe": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
"integrity": "sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw==",
"optional": true,
"peer": true
"integrity": "sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw=="
},
"isobject": {
"version": "3.0.1",
@ -24103,11 +24149,9 @@
}
},
"mime": {
"version": "2.6.0",
"resolved": "https://registry.npmjs.org/mime/-/mime-2.6.0.tgz",
"integrity": "sha512-USPkMeET31rOMiarsBNIHZKLGgvKc/LrjofAnBlOttf5ajRvqiRA8QsenbcooctK6d6Ts6aqZXBA+XbkKthiQg==",
"optional": true,
"peer": true
"version": "3.0.0",
"resolved": "https://registry.npmjs.org/mime/-/mime-3.0.0.tgz",
"integrity": "sha512-jSCU7/VB1loIWBZe14aEYHU/+1UMEHoaO7qxCOVJOw9GgH72VAWppxNcjU+x9a2k3GSIBXNKxXQFqRvvZ7vr3A=="
},
"mime-db": {
"version": "1.52.0",
@ -24138,8 +24182,6 @@
"version": "3.1.2",
"resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
"integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
"optional": true,
"peer": true,
"requires": {
"brace-expansion": "^1.1.7"
}
@ -24532,8 +24574,6 @@
"version": "1.4.0",
"resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
"integrity": "sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==",
"optional": true,
"peer": true,
"requires": {
"wrappy": "1"
}
@ -24824,9 +24864,7 @@
"path-is-absolute": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
"integrity": "sha512-AVbw3UJ2e9bq64vSaS9Am0fje1Pa8pbGqTTsmXfaIiMpnr5DlDhfJOuLj9Sf95ZPVDAUerDfEk88MPmPe7UCQg==",
"optional": true,
"peer": true
"integrity": "sha512-AVbw3UJ2e9bq64vSaS9Am0fje1Pa8pbGqTTsmXfaIiMpnr5DlDhfJOuLj9Sf95ZPVDAUerDfEk88MPmPe7UCQg=="
},
"path-key": {
"version": "2.0.1",
@ -25193,8 +25231,6 @@
"version": "6.0.2",
"resolved": "https://registry.npmjs.org/queue/-/queue-6.0.2.tgz",
"integrity": "sha512-iHZWu+q3IdFZFX36ro/lKBkSvfkztY5Y7HMiPlOUjhupPcG2JMfst2KKEpu5XndviX/3UhFbRngUPNKtgvtZiA==",
"optional": true,
"peer": true,
"requires": {
"inherits": "~2.0.3"
}
@ -26474,13 +26510,21 @@
}
},
"tmp": {
"version": "0.0.33",
"resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.33.tgz",
"integrity": "sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==",
"optional": true,
"peer": true,
"version": "0.2.1",
"resolved": "https://registry.npmjs.org/tmp/-/tmp-0.2.1.tgz",
"integrity": "sha512-76SUhtfqR2Ijn+xllcI5P1oyannHNHByD80W1q447gU3mp9G9PSpGdWmjUOHRDPiHYacIk66W7ubDTuPF3BEtQ==",
"requires": {
"os-tmpdir": "~1.0.2"
"rimraf": "^3.0.0"
},
"dependencies": {
"rimraf": {
"version": "3.0.2",
"resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz",
"integrity": "sha512-JZkJMZkAGFFPP2YqXZXPbMlMBgsxzE8ILs4lMIX/2o0L9UBw9O/Y3o6wFw/i9YLapcUJWwqbi3kdxIPdC62TIA==",
"requires": {
"glob": "^7.1.3"
}
}
}
},
"tmpl": {
@ -26887,8 +26931,6 @@
"version": "1.3.1",
"resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
"integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
"optional": true,
"peer": true,
"requires": {
"isexe": "^2.0.0"
}
@ -26934,9 +26976,7 @@
"wrappy": {
"version": "1.0.2",
"resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
"integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
"optional": true,
"peer": true
"integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="
},
"write-file-atomic": {
"version": "2.4.3",

View File

@ -4,14 +4,18 @@
"description": "Matrix chat server client for Node-RED",
"dependencies": {
"abort-controller": "^3.0.0",
"fluent-ffmpeg": "^2.1.2",
"fs-extra": "^11.1.0",
"got": "^12.0.2",
"image-size": "^1.0.2",
"isomorphic-webcrypto": "^2.3.8",
"matrix-js-sdk": "^28.0.0",
"mime": "^3.0.0",
"node-fetch": "^3.3.0",
"node-localstorage": "^2.2.1",
"olm": "https://gitlab.matrix.org/matrix-org/olm/-/package_files/2572/download",
"request": "^2.88.2",
"tmp": "^0.2.1",
"utf8": "^3.0.0"
},
"node-red": {
@ -23,6 +27,7 @@
"matrix-delete-event": "src/matrix-delete-event.js",
"matrix-send-file": "src/matrix-send-file.js",
"matrix-send-image": "src/matrix-send-image.js",
"matrix-upload-file": "src/matrix-upload-file.js",
"matrix-react": "src/matrix-react.js",
"matrix-create-room": "src/matrix-create-room.js",
"matrix-invite-room": "src/matrix-invite-room.js",

0
src/matrix-file-crypt.js Normal file
View File

View File

@ -43,6 +43,9 @@
<label for="node-input-message"><i class="fa fa-comment"></i> Message</label>
<textarea id="node-input-message" placeholder="msg.payload" style="width: 70%;"></textarea>
</div>
<div class="form-row form-tips">
If message is an object it sets the full content of the message.
</div>
<div class="form-row">
<input
@ -104,9 +107,9 @@
<dd> Room ID to send image to. Optional if configured on the node. If configured on the node this input will be overridden.</dd>
<dt>msg.payload
<span class="property-type">string</span>
<span class="property-type">string|object</span>
</dt>
<dd> the message text. If configured on the node this is ignored otherwise it required. </dd>
<dd> the message text or an object to customize the full content. If configured on the node this is ignored otherwise it required. </dd>
<dt>msg.replace
<span class="property-type">bool</span>

View File

@ -70,22 +70,6 @@ module.exports = function(RED) {
let msgType = node.messageType,
msgFormat = node.messageFormat;
if(msgType === 'msg.type') {
if(!msg.type) {
node.error("msg.type type is set to be passed in via msg.type but was not defined", msg);
return;
}
msgType = msg.type;
}
if(msgFormat === 'msg.format') {
if(!msg.format) {
node.error("Message format is set to be passed in via msg.format but was not defined", msg);
return;
}
msgFormat = msg.format;
}
if (!node.server || !node.server.matrixClient) {
node.warn("No matrix server selected");
return;
@ -109,36 +93,57 @@ module.exports = function(RED) {
return;
}
let content = {
msgtype: msgType,
body: payload.toString()
};
if(msgFormat === 'html') {
content.format = "org.matrix.custom.html";
content.formatted_body =
(typeof msg.formatted_payload !== 'undefined' && msg.formatted_payload)
? msg.formatted_payload.toString()
: payload.toString();
}
if((node.replaceMessage || msg.replace) && msg.eventId) {
content['m.new_content'] = {
msgtype: content.msgtype,
body: content.body
};
if('format' in content) {
content['m.new_content']['format'] = content['format'];
}
if('formatted_body' in content) {
content['m.new_content']['formatted_body'] = content['formatted_body'];
let content = null;
if(typeof payload === 'object') {
content = payload;
} else {
if(msgType === 'msg.type') {
if(!msg.type) {
node.error("msg.type type is set to be passed in via msg.type but was not defined", msg);
return;
}
msgType = msg.type;
}
content['m.relates_to'] = {
rel_type: RelationType.Replace,
event_id: msg.eventId
if(msgFormat === 'msg.format') {
if(!msg.format) {
node.error("Message format is set to be passed in via msg.format but was not defined", msg);
return;
}
msgFormat = msg.format;
}
content = {
msgtype: msgType,
body: payload.toString()
};
content['body'] = ' * ' + content['body'];
if(msgFormat === 'html') {
content.format = "org.matrix.custom.html";
content.formatted_body =
(typeof msg.formatted_payload !== 'undefined' && msg.formatted_payload)
? msg.formatted_payload.toString()
: payload.toString();
}
if((node.replaceMessage || msg.replace) && msg.eventId) {
content['m.new_content'] = {
msgtype: content.msgtype,
body: content.body
};
if('format' in content) {
content['m.new_content']['format'] = content['format'];
}
if('formatted_body' in content) {
content['m.new_content']['formatted_body'] = content['formatted_body'];
}
content['m.relates_to'] = {
rel_type: RelationType.Replace,
event_id: msg.eventId
};
content['body'] = ' * ' + content['body'];
}
}
node.server.matrixClient.sendMessage(msg.topic, content)

View File

@ -76,7 +76,7 @@
</div>
<div class="form-row form-tips">
Timeout MS is how many milliseconds the server should show the user typing for.
Timeout Milliseconds is how many milliseconds the server should show the user typing for. Ignored if setting typing to false.
</div>
</script>

163
src/matrix-upload-file.html Normal file
View File

@ -0,0 +1,163 @@
<script type="text/javascript">
RED.nodes.registerType('matrix-upload-file',{
category: 'matrix',
color: '#00b7ca',
icon: "matrix.png",
outputLabels: ["success", "error"],
inputs:1,
outputs:2,
defaults: {
name: { value: null },
server: { type: "matrix-server-config" },
inputType: { value: "msg" },
inputValue: { value: "payload" },
fileNameType: { value: "msg" },
fileNameValue: { value: "filename" },
contentType: { value: null },
generateThumbnails: { type: "checkbox", value: true },
},
label: function() {
return this.name || "Upload File";
},
oneditprepare: function() {
$("#node-input-input").typedInput({
type: this.inputType,
types:['msg','flow','global','str'],
}).typedInput('value', this.inputValue);
$("#node-input-file-name").typedInput({
type: this.fileNameType,
types:['msg','flow','global','str'],
}).typedInput('value', this.fileNameValue);
},
oneditsave: function() {
this.inputType = $("#node-input-input").typedInput('type');
this.inputValue = $("#node-input-input").typedInput('value');
this.fileNameType = $("#node-input-file-name").typedInput('type');
this.fileNameValue = $("#node-input-file-name").typedInput('value');
},
paletteLabel: 'Upload File'
});
</script>
<script type="text/html" data-template-name="matrix-upload-file">
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
<div class="form-row">
<label for="node-input-server"><i class="fa fa-user"></i> Matrix Server Config</label>
<input type="text" id="node-input-server">
</div>
<div class="form-row">
<label for="node-input-input"><i class="fa fa-file"></i> File Input</label>
<input type="text" id="node-input-input">
</div>
<div class="form-tips" style="margin-bottom: 12px;">
Must be a buffer or string. If it is a string it assumes it is a path to a file on the filesystem.
</div>
<div class="form-row">
<label for="node-input-file-name"><i class="fa fa-file"></i> File Name</label>
<input type="text" id="node-input-file-name">
</div>
<div class="form-tips" style="margin-bottom: 12px;">
Name to give file on remote server. Required if file input is a buffer otherwise it uses the original file name.
</div>
<div class="form-row">
<label for="node-input-contentType"><i class="fa fa-user"></i> Content-Type</label>
<input type="text" id="node-input-contentType" placeholder="msg.contentType">
</div>
<div class="form-tips" style="margin-bottom: 12px;">
Must be a valid <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types" target="_blank">MIME Type</a> (ex: application/pdf) or left undefined to auto detect
</div>
<div class="form-row">
<input
type="checkbox"
id="node-input-generateThumbnails"
style="width: auto; margin-left: 125px; vertical-align: top"
/>
<label for="node-input-generateThumbnails" style="width: auto;max-width:50%;">
Generate m.video thumbnails using ffmpeg
</label>
</div>
<div class="form-tips">
ffmpeg & ffprobe must be installed for thumbnail generation, calculating duration of video or audio file, and getting width & height for videos. This functionality is disabled otherwise.
</div>
<script type="text/javascript">
$(function(){
$("#node-input-roomId").on("keyup", function() {
if($(this).val() && !$(this).val().startsWith("!")) {
$("#node-input-roomId-error").html(`Room IDs start with exclamation point "!"<br />Example: !OGEhHVWSdvArJzumhm:matrix.org`).show();
} else {
$("#node-input-roomId-error").hide();
}
}).trigger('keyup');
});
</script>
</script>
<script type="text/html" data-help-name="matrix-upload-file">
<h3>Details</h3>
<p>This node will send a file to a Matrix chat room. Supports direct linking to a File In node.</p>
<h3>Inputs</h3>
<dl class="message-properties">
<dt>msg.payload
<span class="property-type">string | Buffer</span>
</dt>
<dd> If this is not a buffer it assumes it is a path to the file. </dd>
<dt>msg.topic
<span class="property-type">string</span>
</dt>
<dd> Room ID to send file to. Ignored if configured on the node, otherwise required.</dd>
<dt class="optional">msg.filename
<span class="property-type">string | null</span>
</dt>
<dd> name of the file to upload. You REALLY should pass this if you want the file type to be detected correctly. If no filename is provided it will be auto-detected but note that this is not perfect (for example: .doc word files are detected incorrectly as application/x-cfb) and only works with binary files.</dd>
<dt class="optional">msg.body
<span class="property-type">string | null</span>
</dt>
<dd> this will be the display name the client will see when rendered in their chat client. If this is left empty it will just display as "Attachment".</dd>
<dt class="optional">msg.contentType
<span class="property-type">string | null</span>
</dt>
<dd> Content <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types" target="_blank">MIME Type</a>. If set this forces the mime type. If you do not provide this it will try to be auto-detected.</dd>
<dt class="optional">msg.content
<span class="property-type">object | null</span>
</dt>
<dd> craft your own msg.content to send to the server. If defined then <code>msg.filename</code>, <code>msg.contentType</code>, <code>msg.body</code>, and <code>msg.payload</code> aren't required since the file already exists.</dd>
</dl>
<h3>Outputs</h3>
<ol class="node-ports">
<li>Success
<dl class="message-properties">
<dt>msg.eventId <span class="property-type">string</span></dt>
<dd>the eventId from the posted message.</dd>
</dl>
</li>
<li>Error
<dl class="message-properties">
<dt>msg.error <span class="property-type">string</span></dt>
<dd>the error that occurred.</dd>
</dl>
</li>
</ol>
<h3>References</h3>
<ul>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types">MIME Types</a> - description of <code>msg.contentType</code> format</li>
</ul>
</script>

471
src/matrix-upload-file.js Normal file
View File

@ -0,0 +1,471 @@
const crypto = require("isomorphic-webcrypto");
const ffmpeg = require('fluent-ffmpeg');
const getImageSize = require('image-size');
const tmp = require('tmp');
const fs = require('fs');
const path = require('path');
module.exports = function(RED) {
function MatrixUploadFile(n) {
RED.nodes.createNode(this, n);
let node = this;
this.name = n.name;
this.server = RED.nodes.getNode(n.server);
this.inputType = n.inputType;
this.inputValue = n.inputValue;
this.fileNameType = n.fileNameType;
this.fileNameValue = n.fileNameValue;
this.contentType = n.contentType;
this.generateThumbnails = n.generateThumbnails;
if (!node.server) {
node.warn("No configuration node");
return;
}
node.server.register(node);
node.status({ fill: "red", shape: "ring", text: "disconnected" });
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" });
});
async function detectFileType(filename, bufferOrPath)
{
const Mime = require('mime');
let file = Buffer.isBuffer(bufferOrPath) ? filename : bufferOrPath;
if(file)
{
let type = Mime.getType(file);
let ext = Mime.getExtension(file);
if(type) {
return {ext: ext, mime: type}
}
}
}
function getFileBuffer(data)
{
if(Buffer.isBuffer(data)) {
return data;
}
if (data && RED.settings.fileWorkingDirectory && !path.isAbsolute(data)) {
return fs.readFileSync(path.resolve(path.join(RED.settings.fileWorkingDirectory,data)));
}
return fs.readFileSync(data);
}
function getToValue(msg, type, property) {
let value = property;
if (type === "msg") {
value = RED.util.getMessageProperty(msg, property);
} else if ((type === 'flow') || (type === 'global')) {
try {
value = RED.util.evaluateNodeProperty(property, type, node, msg);
} catch(e2) {
throw new Error("Invalid value evaluation");
}
} else if(type === "bool") {
value = (property === 'true');
} else if(type === "num") {
value = Number(property);
}
return value;
}
node.on("input", onInput);
async function onInput(msg)
{
if (! node.server || ! node.server.matrixClient) {
node.warn("No matrix server selected");
return;
}
if(!node.server.isConnected()) {
node.error("Matrix server connection is currently closed", msg);
msg.error = "Matrix server connection is currently closed";
node.send([null, msg]);
return;
}
let bufferOrPath = getToValue(msg, node.inputType, node.inputValue);
if(!bufferOrPath) {
node.error('Missing file path/buffer input', msg);
msg.error = 'Missing file path/buffer input';
node.send([null, msg]);
return;
}
let filename = getToValue(msg, node.fileNameType, node.fileNameValue);
if(!filename || typeof filename !== 'string') {
if(!Buffer.isBuffer(bufferOrPath)) {
filename = path.basename(bufferOrPath);
} else {
node.error('Missing filename, this is required if input is a file buffer', msg);
msg.error = 'Missing filename, this is required if input is a file buffer';
node.send([null, msg]);
return;
}
}
msg.contentType = node.contentType || msg.contentType || null;
let detectedFileType = await detectFileType(filename, bufferOrPath);
node.log("Detected file type " + JSON.stringify(detectedFileType) + " for " + (Buffer.isBuffer(bufferOrPath) ? 'buffer' : `file ${bufferOrPath}`), msg);
let contentType = msg.contentType || detectedFileType?.mime || null,
msgtype = msg.msgtype || null;
if(!contentType) {
node.warn("Content-type failed to detect, falling back to text/plain", msg);
contentType = 'text/plain';
}
if(!msgtype) {
msgtype = autoDetectMatrixMessageType(detectedFileType);
}
let encryptedFile = null;
if(msg.encrypted) {
encryptedFile = await encryptAttachment(getFileBuffer(bufferOrPath));
}
node.log("Uploading file ", msg);
let file;
try {
file = await node.server.matrixClient.uploadContent(
encryptedFile?.data || getFileBuffer(bufferOrPath),
{
name: filename, // Name to give the file on the server.
rawResponse: false, // Return the raw body, rather than parsing the JSON.
type: contentType, // Content-type for the upload. Defaults to file.type, or applicaton/octet-stream.
onlyContentUri: false // Just return the content URI, rather than the whole body. Defaults to false. Ignored if opts.rawResponse is true.
});
} catch(e) {
node.error("Upload content error " + e);
msg.error = e;
node.send([null, msg]);
return;
}
// we call this method when we need a file and cannot use the buffer
// so if we get passed a buffer we write it to a tmp file and return that
// otherwise we just return the string because it's already a file
let tempFile = null;
function getFile(bufferOrFile) {
if(!Buffer.isBuffer(bufferOrFile)) {
return bufferOrFile; // already a file
}
if(tempFile) {
return tempFile;
}
// write buffer to tmp file and return path
let tmpObj = tmp.fileSync({ postfix: `.${detectedFileType.ext}` });
fs.writeFileSync(tmpObj.name, bufferOrFile);
tempFile = tmpObj.name;
return tmpObj.name;
}
function deleteTempFile() {
if(!tempFile) return null;
fs.rmSync(tempFile);
}
// get size of a buffer or file in bytes
function getFileSize(bufferOrPath) {
if(Buffer.isBuffer(bufferOrPath)) {
return Buffer.byteLength(bufferOrPath);
}
return fs.statSync(bufferOrPath).size;
}
async function addThumbnail(buffer) {
let imageSize = getImageSize(Buffer.isBuffer(buffer) ? buffer : buffer.data);
msg.payload.info.thumbnail_info = {
w: imageSize.width,
h: imageSize.height,
size: getFileSize(Buffer.isBuffer(buffer) ? buffer : buffer.data)
}
let uploadedThumbnail = await node.server.matrixClient.uploadContent(
Buffer.isBuffer(buffer) ? buffer : buffer.data,
{
name: "thumbnail.png", // Name to give the file on the server.
rawResponse: false, // Return the raw body, rather than parsing the JSON.
type: "image/png", // Content-type for the upload. Defaults to file.type, or applicaton/octet-stream.
onlyContentUri: false // Just return the content URI, rather than the whole body. Defaults to false. Ignored if opts.rawResponse is true.
});
// delete local file
if(msg.encrypted) {
msg.payload.info.thumbnail_file.url = uploadedThumbnail.content_uri;
} else {
msg.payload.info.thumbnail_url = uploadedThumbnail.content_uri;
}
}
function _ffmpegVideoThumbnail(filepath){
return new Promise((resolve,reject) => {
let filename = `${msg._msgid}-screenshot.png`;
ffmpeg(filepath)
.on('end', async function() {
let path = `/tmp/${filename}`;
let buffer = getFileBuffer(path);
let encryptedThumbnail = null;
if(msg.encrypted) {
encryptedThumbnail = await encryptAttachment(buffer);
msg.payload.info.thumbnail_file = encryptedFile.info;
}
try {
await addThumbnail(encryptedThumbnail || buffer);
fs.rmSync(path); // delete temporary thumbnail file
resolve();
} catch(e) {
return reject(new Error("Thumbnail upload failure: " + e));
}
})
.on('error', function(err) {
return reject(err);
})
.screenshots({
timestamps: [0],
filename: filename,
folder: '/tmp',
size: '320x?'
});
});
}
msg.payload = {};
if(msg.encrypted) {
msg.payload.file = encryptedFile?.info || {};
msg.payload.file.url = file.content_uri;
} else {
msg.payload.url = file.content_uri;
}
msg.payload.msgtype = msgtype;
msg.payload.body = msg.body || msg.filename || "";
msg.payload.info = {
"mimetype": contentType,
"size": getFileSize(bufferOrPath),
};
if(msgtype === 'm.image') {
// detect size of image
try {
let imageSize = getImageSize(buffer);
msg.payload.info.h = imageSize.height;
msg.payload.info.w = imageSize.width;
} catch(e) {
node.error("Failed to get image size: " + e, msg);
}
} else if(msgtype === 'm.audio' && detectedFileType) {
try {
// detect duration of audio clip
let filepath = getFile(bufferOrPath);
let metadata = await _ffprobe(filepath);
let audioStream = metadata?.streams.filter(function(stream){return stream.codec_type === "audio" || false;})[0];
if(audioStream?.duration) {
msg.payload.info.duration = audioStream?.duration * 1000;
}
} catch(e) {
node.error(e, msg);
}
deleteTempFile();
} else if(msgtype === 'm.video' && detectedFileType) {
let filepath = getFile(bufferOrPath);
try {
// detect duration & width/height of video clip
let metadata = await _ffprobe(filepath);
let videoStream = metadata?.streams.filter(function(stream){return stream.codec_type === "video" || false;})[0];
if(videoStream) {
msg.payload.info.duration = videoStream.duration * 1000;
msg.payload.info.w = videoStream.width;
msg.payload.info.h = videoStream.height;
}
} catch(e) {
node.error("ffprobe error: " + e);
}
if(node.generateThumbnails) {
try {
await _ffmpegVideoThumbnail(filepath);
} catch(e) {
node.error("Screenshot generation error: " + e);
}
}
deleteTempFile();
}
node.send(msg, null);
}
node.on("close", function() {
node.server.deregister(node);
});
}
RED.nodes.registerType("matrix-upload-file", MatrixUploadFile);
// the following was taken & modified from https://github.com/matrix-org/browser-encrypt-attachment/blob/master/index.js
/**
* Encrypt an attachment.
* @param {ArrayBuffer} plaintextBuffer The attachment data buffer.
* @return {Promise} A promise that resolves with an object when the attachment is encrypted.
* The object has a "data" key with an ArrayBuffer of encrypted data and an "info" key
* with an object containing the info needed to decrypt the data.
*/
function encryptAttachment(plaintextBuffer) {
let cryptoKey; // The AES key object.
let exportedKey; // The AES key exported as JWK.
let ciphertextBuffer; // ArrayBuffer of encrypted data.
let sha256Buffer; // ArrayBuffer of digest.
let ivArray; // Uint8Array of AES IV
// Generate an IV where the first 8 bytes are random and the high 8 bytes
// are zero. We set the counter low bits to 0 since it makes it unlikely
// that the 64 bit counter will overflow.
ivArray = new Uint8Array(16);
crypto.getRandomValues(ivArray.subarray(0,8));
// Load the encryption key.
return crypto.subtle.generateKey(
{"name": "AES-CTR", length: 256}, true, ["encrypt", "decrypt"]
).then(function(generateKeyResult) {
cryptoKey = generateKeyResult;
// Export the Key as JWK.
return crypto.subtle.exportKey("jwk", cryptoKey);
}).then(function(exportKeyResult) {
exportedKey = exportKeyResult;
// Encrypt the input ArrayBuffer.
// Use half of the iv as the counter by setting the "length" to 64.
return crypto.subtle.encrypt(
{name: "AES-CTR", counter: ivArray, length: 64}, cryptoKey, plaintextBuffer
);
}).then(function(encryptResult) {
ciphertextBuffer = encryptResult;
// SHA-256 the encrypted data.
return crypto.subtle.digest("SHA-256", ciphertextBuffer);
}).then(function (digestResult) {
sha256Buffer = digestResult;
return {
data: ciphertextBuffer,
info: {
v: "v2",
key: exportedKey,
iv: encodeBase64(ivArray),
hashes: {
sha256: encodeBase64(new Uint8Array(sha256Buffer)),
},
},
};
});
}
/**
* Decrypt an attachment.
* @param {ArrayBuffer} ciphertextBuffer The encrypted attachment data buffer.
* @param {Object} info The information needed to decrypt the attachment.
* @param {Object} info.key AES-CTR JWK key object.
* @param {string} info.iv Base64 encoded 16 byte AES-CTR IV.
* @param {string} info.hashes.sha256 Base64 encoded SHA-256 hash of the ciphertext.
* @return {Promise} A promise that resolves with an ArrayBuffer when the attachment is decrypted.
*/
function decryptAttachment(ciphertextBuffer, info) {
if (info === undefined || info.key === undefined || info.iv === undefined
|| info.hashes === undefined || info.hashes.sha256 === undefined) {
throw new Error("Invalid info. Missing info.key, info.iv or info.hashes.sha256 key");
}
let cryptoKey; // The AES key object.
let ivArray = decodeBase64(info.iv);
let expectedSha256base64 = info.hashes.sha256;
// Load the AES from the "key" key of the info object.
return crypto.subtle.importKey(
"jwk", info.key, {"name": "AES-CTR"}, false, ["encrypt", "decrypt"]
).then(function (importKeyResult) {
cryptoKey = importKeyResult;
// Check the sha256 hash
return crypto.subtle.digest("SHA-256", ciphertextBuffer);
}).then(function (digestResult) {
if (encodeBase64(new Uint8Array(digestResult)) !== expectedSha256base64) {
throw new Error("Mismatched SHA-256 digest (expected: " + encodeBase64(new Uint8Array(digestResult)) + ") got (" + expectedSha256base64 + ")");
}
let counterLength;
if (info.v.toLowerCase() === "v1" || info.v.toLowerCase() === "v2") {
// Version 1 and 2 use a 64 bit counter.
counterLength = 64;
} else {
// Version 0 uses a 128 bit counter.
counterLength = 128;
}
return crypto.subtle.decrypt(
{name: "AES-CTR", counter: ivArray, length: counterLength}, cryptoKey, ciphertextBuffer
);
});
}
/**
* Encode a typed array of uint8 as base64.
* @param {Uint8Array} uint8Array The data to encode.
* @return {string} The base64 without padding.
*/
function encodeBase64(uint8Array) {
// Misinterpt the Uint8Array as Latin-1.
// window.btoa expects a unicode string with codepoints in the range 0-255.
// var latin1String = String.fromCharCode.apply(null, uint8Array);
// Use the builtin base64 encoder.
var paddedBase64 = btoa(uint8Array);
// Calculate the unpadded length.
var inputLength = uint8Array.length;
var outputLength = 4 * Math.floor((inputLength + 2) / 3) + (inputLength + 2) % 3 - 2;
// Return the unpadded base64.
return paddedBase64.slice(0, outputLength);
}
/**
* Decode a base64 string to a typed array of uint8.
* This will decode unpadded base64, but will also accept base64 with padding.
* @param {string} base64 The unpadded base64 to decode.
* @return {Uint8Array} The decoded data.
*/
function decodeBase64(base64) {
// Pad the base64 up to the next multiple of 4.
var paddedBase64 = base64 + "===".slice(0, (4 - base64.length % 4) % 4);
// Decode the base64 as a misinterpreted Latin-1 string.
// window.atob returns a unicode string with codepoints in the range 0-255.
var latin1String = atob(paddedBase64);
// Encode the string as a Uint8Array as Latin-1.
var uint8Array = new Uint8Array(latin1String.length);
for (var i = 0; i < latin1String.length; i++) {
uint8Array[i] = latin1String.charCodeAt(i);
}
return uint8Array;
}
function autoDetectMatrixMessageType(fileType) {
switch(fileType ? fileType.mime.split('/')[0].toLowerCase() : undefined) {
case 'video': return 'm.video';
case 'image': return 'm.image';
case 'audio': return 'm.audio';
default: return 'm.file';
}
}
// ffprobe method for getting metadata from a file wrapped in a promise
function _ffprobe(filepath){
return new Promise((resolve,reject) => {
ffmpeg.ffprobe(filepath, function(err, metadata) {
if(err) {
return reject(new Error(err));
}
resolve(metadata);
});
});
}
}