671 lines
25 KiB
TypeScript
671 lines
25 KiB
TypeScript
/*
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Copyright 2015, 2016 OpenMarket Ltd
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Copyright 2019 New Vector Ltd
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Copyright 2020 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import React from "react";
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import { encode } from "blurhash";
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import { MatrixClient } from "matrix-js-sdk/src/client";
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import dis from './dispatcher/dispatcher';
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import * as sdk from './index';
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import { _t } from './languageHandler';
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import Modal from './Modal';
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import RoomViewStore from './stores/RoomViewStore';
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import encrypt from "browser-encrypt-attachment";
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import extractPngChunks from "png-chunks-extract";
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import Spinner from "./components/views/elements/Spinner";
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import { Action } from "./dispatcher/actions";
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import CountlyAnalytics from "./CountlyAnalytics";
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import {
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UploadCanceledPayload,
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UploadErrorPayload,
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UploadFinishedPayload,
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UploadProgressPayload,
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UploadStartedPayload,
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} from "./dispatcher/payloads/UploadPayload";
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import { IUpload } from "./models/IUpload";
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import { IImageInfo } from "matrix-js-sdk/src/@types/partials";
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const MAX_WIDTH = 800;
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const MAX_HEIGHT = 600;
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// scraped out of a macOS hidpi (5660ppm) screenshot png
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// 5669 px (x-axis) , 5669 px (y-axis) , per metre
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const PHYS_HIDPI = [0x00, 0x00, 0x16, 0x25, 0x00, 0x00, 0x16, 0x25, 0x01];
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export const BLURHASH_FIELD = "xyz.amorgan.blurhash"; // MSC2448
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export class UploadCanceledError extends Error {}
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type ThumbnailableElement = HTMLImageElement | HTMLVideoElement;
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interface IMediaConfig {
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"m.upload.size"?: number;
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}
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interface IContent {
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body: string;
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msgtype: string;
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info: {
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size: number;
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mimetype?: string;
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};
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file?: string;
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url?: string;
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}
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interface IThumbnail {
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info: {
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// eslint-disable-next-line camelcase
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thumbnail_info: {
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w: number;
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h: number;
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mimetype: string;
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size: number;
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};
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w: number;
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h: number;
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[BLURHASH_FIELD]: string;
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};
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thumbnail: Blob;
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}
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interface IAbortablePromise<T> extends Promise<T> {
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abort(): void;
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}
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/**
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* Create a thumbnail for a image DOM element.
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* The image will be smaller than MAX_WIDTH and MAX_HEIGHT.
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* The thumbnail will have the same aspect ratio as the original.
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* Draws the element into a canvas using CanvasRenderingContext2D.drawImage
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* Then calls Canvas.toBlob to get a blob object for the image data.
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*
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* Since it needs to calculate the dimensions of the source image and the
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* thumbnailed image it returns an info object filled out with information
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* about the original image and the thumbnail.
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*
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* @param {HTMLElement} element The element to thumbnail.
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* @param {number} inputWidth The width of the image in the input element.
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* @param {number} inputHeight the width of the image in the input element.
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* @param {String} mimeType The mimeType to save the blob as.
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* @return {Promise} A promise that resolves with an object with an info key
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* and a thumbnail key.
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*/
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function createThumbnail(
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element: ThumbnailableElement,
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inputWidth: number,
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inputHeight: number,
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mimeType: string,
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): Promise<IThumbnail> {
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return new Promise((resolve) => {
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let targetWidth = inputWidth;
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let targetHeight = inputHeight;
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if (targetHeight > MAX_HEIGHT) {
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targetWidth = Math.floor(targetWidth * (MAX_HEIGHT / targetHeight));
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targetHeight = MAX_HEIGHT;
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}
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if (targetWidth > MAX_WIDTH) {
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targetHeight = Math.floor(targetHeight * (MAX_WIDTH / targetWidth));
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targetWidth = MAX_WIDTH;
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}
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const canvas = document.createElement("canvas");
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canvas.width = targetWidth;
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canvas.height = targetHeight;
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const context = canvas.getContext("2d");
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context.drawImage(element, 0, 0, targetWidth, targetHeight);
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const imageData = context.getImageData(0, 0, targetWidth, targetHeight);
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const blurhash = encode(
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imageData.data,
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imageData.width,
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imageData.height,
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// use 4 components on the longer dimension, if square then both
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imageData.width >= imageData.height ? 4 : 3,
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imageData.height >= imageData.width ? 4 : 3,
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);
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canvas.toBlob(function(thumbnail) {
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resolve({
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info: {
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thumbnail_info: {
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w: targetWidth,
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h: targetHeight,
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mimetype: thumbnail.type,
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size: thumbnail.size,
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},
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w: inputWidth,
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h: inputHeight,
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[BLURHASH_FIELD]: blurhash,
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},
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thumbnail,
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});
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}, mimeType);
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});
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}
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/**
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* Load a file into a newly created image element.
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*
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* @param {File} imageFile The file to load in an image element.
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* @return {Promise} A promise that resolves with the html image element.
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*/
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async function loadImageElement(imageFile: File) {
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// Load the file into an html element
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const img = document.createElement("img");
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const objectUrl = URL.createObjectURL(imageFile);
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const imgPromise = new Promise((resolve, reject) => {
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img.onload = function() {
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URL.revokeObjectURL(objectUrl);
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resolve(img);
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};
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img.onerror = function(e) {
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reject(e);
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};
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});
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img.src = objectUrl;
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// check for hi-dpi PNGs and fudge display resolution as needed.
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// this is mainly needed for macOS screencaps
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let parsePromise;
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if (imageFile.type === "image/png") {
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// in practice macOS happens to order the chunks so they fall in
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// the first 0x1000 bytes (thanks to a massive ICC header).
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// Thus we could slice the file down to only sniff the first 0x1000
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// bytes (but this makes extractPngChunks choke on the corrupt file)
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const headers = imageFile; //.slice(0, 0x1000);
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parsePromise = readFileAsArrayBuffer(headers).then(arrayBuffer => {
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const buffer = new Uint8Array(arrayBuffer);
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const chunks = extractPngChunks(buffer);
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for (const chunk of chunks) {
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if (chunk.name === 'pHYs') {
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if (chunk.data.byteLength !== PHYS_HIDPI.length) return;
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return chunk.data.every((val, i) => val === PHYS_HIDPI[i]);
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}
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}
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return false;
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});
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}
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const [hidpi] = await Promise.all([parsePromise, imgPromise]);
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const width = hidpi ? (img.width >> 1) : img.width;
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const height = hidpi ? (img.height >> 1) : img.height;
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return { width, height, img };
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}
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/**
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* Read the metadata for an image file and create and upload a thumbnail of the image.
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*
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* @param {MatrixClient} matrixClient A matrixClient to upload the thumbnail with.
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* @param {String} roomId The ID of the room the image will be uploaded in.
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* @param {File} imageFile The image to read and thumbnail.
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* @return {Promise} A promise that resolves with the attachment info.
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*/
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function infoForImageFile(matrixClient, roomId, imageFile) {
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let thumbnailType = "image/png";
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if (imageFile.type === "image/jpeg") {
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thumbnailType = "image/jpeg";
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}
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let imageInfo;
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return loadImageElement(imageFile).then((r) => {
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return createThumbnail(r.img, r.width, r.height, thumbnailType);
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}).then((result) => {
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imageInfo = result.info;
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return uploadFile(matrixClient, roomId, result.thumbnail);
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}).then((result) => {
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imageInfo.thumbnail_url = result.url;
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imageInfo.thumbnail_file = result.file;
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return imageInfo;
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});
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}
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/**
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* Load a file into a newly created video element and pull some strings
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* in an attempt to guarantee the first frame will be showing.
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*
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* @param {File} videoFile The file to load in an video element.
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* @return {Promise} A promise that resolves with the video image element.
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*/
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function loadVideoElement(videoFile): Promise<HTMLVideoElement> {
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return new Promise((resolve, reject) => {
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// Load the file into an html element
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const video = document.createElement("video");
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video.preload = "metadata";
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video.playsInline = true;
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video.muted = true;
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const reader = new FileReader();
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reader.onload = function(ev) {
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// Wait until we have enough data to thumbnail the first frame.
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video.onloadeddata = async function() {
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resolve(video);
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video.pause();
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};
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video.onerror = function(e) {
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reject(e);
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};
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video.src = ev.target.result as string;
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video.load();
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video.play();
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};
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reader.onerror = function(e) {
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reject(e);
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};
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reader.readAsDataURL(videoFile);
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});
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}
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/**
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* Read the metadata for a video file and create and upload a thumbnail of the video.
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*
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* @param {MatrixClient} matrixClient A matrixClient to upload the thumbnail with.
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* @param {String} roomId The ID of the room the video will be uploaded to.
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* @param {File} videoFile The video to read and thumbnail.
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* @return {Promise} A promise that resolves with the attachment info.
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*/
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function infoForVideoFile(matrixClient, roomId, videoFile) {
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const thumbnailType = "image/jpeg";
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let videoInfo;
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return loadVideoElement(videoFile).then((video) => {
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return createThumbnail(video, video.videoWidth, video.videoHeight, thumbnailType);
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}).then((result) => {
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videoInfo = result.info;
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return uploadFile(matrixClient, roomId, result.thumbnail);
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}).then((result) => {
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videoInfo.thumbnail_url = result.url;
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videoInfo.thumbnail_file = result.file;
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return videoInfo;
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});
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}
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/**
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* Read the file as an ArrayBuffer.
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* @param {File} file The file to read
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* @return {Promise} A promise that resolves with an ArrayBuffer when the file
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* is read.
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*/
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function readFileAsArrayBuffer(file: File | Blob): Promise<ArrayBuffer> {
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return new Promise((resolve, reject) => {
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const reader = new FileReader();
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reader.onload = function(e) {
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resolve(e.target.result as ArrayBuffer);
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};
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reader.onerror = function(e) {
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reject(e);
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};
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reader.readAsArrayBuffer(file);
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});
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}
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/**
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* Upload the file to the content repository.
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* If the room is encrypted then encrypt the file before uploading.
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*
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* @param {MatrixClient} matrixClient The matrix client to upload the file with.
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* @param {String} roomId The ID of the room being uploaded to.
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* @param {File} file The file to upload.
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* @param {Function?} progressHandler optional callback to be called when a chunk of
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* data is uploaded.
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* @return {Promise} A promise that resolves with an object.
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* If the file is unencrypted then the object will have a "url" key.
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* If the file is encrypted then the object will have a "file" key.
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*/
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export function uploadFile(
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matrixClient: MatrixClient,
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roomId: string,
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file: File | Blob,
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progressHandler?: any, // TODO: Types
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): Promise<{url?: string, file?: any}> { // TODO: Types
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let canceled = false;
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if (matrixClient.isRoomEncrypted(roomId)) {
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// If the room is encrypted then encrypt the file before uploading it.
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// First read the file into memory.
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let uploadPromise;
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let encryptInfo;
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const prom = readFileAsArrayBuffer(file).then(function(data) {
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if (canceled) throw new UploadCanceledError();
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// Then encrypt the file.
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return encrypt.encryptAttachment(data);
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}).then(function(encryptResult) {
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if (canceled) throw new UploadCanceledError();
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// Record the information needed to decrypt the attachment.
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encryptInfo = encryptResult.info;
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// Pass the encrypted data as a Blob to the uploader.
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const blob = new Blob([encryptResult.data]);
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uploadPromise = matrixClient.uploadContent(blob, {
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progressHandler: progressHandler,
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includeFilename: false,
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});
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return uploadPromise;
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}).then(function(url) {
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if (canceled) throw new UploadCanceledError();
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// If the attachment is encrypted then bundle the URL along
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// with the information needed to decrypt the attachment and
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// add it under a file key.
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encryptInfo.url = url;
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if (file.type) {
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encryptInfo.mimetype = file.type;
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}
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return { "file": encryptInfo };
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});
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(prom as IAbortablePromise<any>).abort = () => {
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canceled = true;
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if (uploadPromise) matrixClient.cancelUpload(uploadPromise);
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};
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return prom;
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} else {
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const basePromise = matrixClient.uploadContent(file, {
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progressHandler: progressHandler,
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});
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const promise1 = basePromise.then(function(url) {
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if (canceled) throw new UploadCanceledError();
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// If the attachment isn't encrypted then include the URL directly.
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return { url };
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});
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(promise1 as any).abort = () => {
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canceled = true;
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matrixClient.cancelUpload(basePromise);
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};
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return promise1;
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}
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}
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export default class ContentMessages {
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private inprogress: IUpload[] = [];
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private mediaConfig: IMediaConfig = null;
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sendStickerContentToRoom(url: string, roomId: string, info: IImageInfo, text: string, matrixClient: MatrixClient) {
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const startTime = CountlyAnalytics.getTimestamp();
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const prom = matrixClient.sendStickerMessage(roomId, url, info, text).catch((e) => {
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console.warn(`Failed to send content with URL ${url} to room ${roomId}`, e);
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throw e;
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});
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CountlyAnalytics.instance.trackSendMessage(startTime, prom, roomId, false, false, { msgtype: "m.sticker" });
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return prom;
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}
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getUploadLimit() {
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if (this.mediaConfig !== null && this.mediaConfig["m.upload.size"] !== undefined) {
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return this.mediaConfig["m.upload.size"];
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} else {
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return null;
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}
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}
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async sendContentListToRoom(files: File[], roomId: string, matrixClient: MatrixClient) {
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if (matrixClient.isGuest()) {
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dis.dispatch({ action: 'require_registration' });
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return;
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}
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const isQuoting = Boolean(RoomViewStore.getQuotingEvent());
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if (isQuoting) {
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// FIXME: Using an import will result in Element crashing
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const QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
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const { finished } = Modal.createTrackedDialog<[boolean]>('Upload Reply Warning', '', QuestionDialog, {
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title: _t('Replying With Files'),
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description: (
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<div>{_t(
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'At this time it is not possible to reply with a file. ' +
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'Would you like to upload this file without replying?',
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)}</div>
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),
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hasCancelButton: true,
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button: _t("Continue"),
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});
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const [shouldUpload] = await finished;
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if (!shouldUpload) return;
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}
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if (!this.mediaConfig) { // hot-path optimization to not flash a spinner if we don't need to
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const modal = Modal.createDialog(Spinner, null, 'mx_Dialog_spinner');
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await this.ensureMediaConfigFetched(matrixClient);
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modal.close();
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}
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const tooBigFiles = [];
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const okFiles = [];
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for (let i = 0; i < files.length; ++i) {
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if (this.isFileSizeAcceptable(files[i])) {
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okFiles.push(files[i]);
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} else {
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tooBigFiles.push(files[i]);
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}
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}
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if (tooBigFiles.length > 0) {
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// FIXME: Using an import will result in Element crashing
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const UploadFailureDialog = sdk.getComponent("dialogs.UploadFailureDialog");
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const { finished } = Modal.createTrackedDialog<[boolean]>('Upload Failure', '', UploadFailureDialog, {
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badFiles: tooBigFiles,
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totalFiles: files.length,
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contentMessages: this,
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});
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const [shouldContinue] = await finished;
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if (!shouldContinue) return;
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}
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let uploadAll = false;
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// Promise to complete before sending next file into room, used for synchronisation of file-sending
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// to match the order the files were specified in
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let promBefore: Promise<any> = Promise.resolve();
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for (let i = 0; i < okFiles.length; ++i) {
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const file = okFiles[i];
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if (!uploadAll) {
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// FIXME: Using an import will result in Element crashing
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const UploadConfirmDialog = sdk.getComponent("dialogs.UploadConfirmDialog");
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const { finished } = Modal.createTrackedDialog<[boolean, boolean]>('Upload Files confirmation',
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'', UploadConfirmDialog, {
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file,
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currentIndex: i,
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totalFiles: okFiles.length,
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},
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);
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const [shouldContinue, shouldUploadAll] = await finished;
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if (!shouldContinue) break;
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if (shouldUploadAll) {
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uploadAll = true;
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}
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}
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promBefore = this.sendContentToRoom(file, roomId, matrixClient, promBefore);
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}
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}
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getCurrentUploads() {
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return this.inprogress.filter(u => !u.canceled);
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}
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cancelUpload(promise: Promise<any>, matrixClient: MatrixClient) {
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let upload: IUpload;
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for (let i = 0; i < this.inprogress.length; ++i) {
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if (this.inprogress[i].promise === promise) {
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upload = this.inprogress[i];
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break;
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}
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}
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if (upload) {
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upload.canceled = true;
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matrixClient.cancelUpload(upload.promise);
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dis.dispatch<UploadCanceledPayload>({ action: Action.UploadCanceled, upload });
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}
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}
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private sendContentToRoom(file: File, roomId: string, matrixClient: MatrixClient, promBefore: Promise<any>) {
|
|
const startTime = CountlyAnalytics.getTimestamp();
|
|
const content: IContent = {
|
|
body: file.name || 'Attachment',
|
|
info: {
|
|
size: file.size,
|
|
},
|
|
msgtype: "", // set later
|
|
};
|
|
|
|
// if we have a mime type for the file, add it to the message metadata
|
|
if (file.type) {
|
|
content.info.mimetype = file.type;
|
|
}
|
|
|
|
const prom = new Promise<void>((resolve) => {
|
|
if (file.type.indexOf('image/') === 0) {
|
|
content.msgtype = 'm.image';
|
|
infoForImageFile(matrixClient, roomId, file).then((imageInfo) => {
|
|
Object.assign(content.info, imageInfo);
|
|
resolve();
|
|
}, (e) => {
|
|
console.error(e);
|
|
content.msgtype = 'm.file';
|
|
resolve();
|
|
});
|
|
} else if (file.type.indexOf('audio/') === 0) {
|
|
content.msgtype = 'm.audio';
|
|
resolve();
|
|
} else if (file.type.indexOf('video/') === 0) {
|
|
content.msgtype = 'm.video';
|
|
infoForVideoFile(matrixClient, roomId, file).then((videoInfo) => {
|
|
Object.assign(content.info, videoInfo);
|
|
resolve();
|
|
}, (e) => {
|
|
content.msgtype = 'm.file';
|
|
resolve();
|
|
});
|
|
} else {
|
|
content.msgtype = 'm.file';
|
|
resolve();
|
|
}
|
|
});
|
|
|
|
// create temporary abort handler for before the actual upload gets passed off to js-sdk
|
|
(prom as IAbortablePromise<any>).abort = () => {
|
|
upload.canceled = true;
|
|
};
|
|
|
|
const upload: IUpload = {
|
|
fileName: file.name || 'Attachment',
|
|
roomId: roomId,
|
|
total: file.size,
|
|
loaded: 0,
|
|
promise: prom,
|
|
};
|
|
this.inprogress.push(upload);
|
|
dis.dispatch<UploadStartedPayload>({ action: Action.UploadStarted, upload });
|
|
|
|
// Focus the composer view
|
|
dis.fire(Action.FocusSendMessageComposer);
|
|
|
|
function onProgress(ev) {
|
|
upload.total = ev.total;
|
|
upload.loaded = ev.loaded;
|
|
dis.dispatch<UploadProgressPayload>({ action: Action.UploadProgress, upload });
|
|
}
|
|
|
|
let error;
|
|
return prom.then(function() {
|
|
if (upload.canceled) throw new UploadCanceledError();
|
|
// XXX: upload.promise must be the promise that
|
|
// is returned by uploadFile as it has an abort()
|
|
// method hacked onto it.
|
|
upload.promise = uploadFile(
|
|
matrixClient, roomId, file, onProgress,
|
|
);
|
|
return upload.promise.then(function(result) {
|
|
content.file = result.file;
|
|
content.url = result.url;
|
|
});
|
|
}).then(() => {
|
|
// Await previous message being sent into the room
|
|
return promBefore;
|
|
}).then(function() {
|
|
if (upload.canceled) throw new UploadCanceledError();
|
|
const prom = matrixClient.sendMessage(roomId, content);
|
|
CountlyAnalytics.instance.trackSendMessage(startTime, prom, roomId, false, false, content);
|
|
return prom;
|
|
}, function(err) {
|
|
error = err;
|
|
if (!upload.canceled) {
|
|
let desc = _t("The file '%(fileName)s' failed to upload.", { fileName: upload.fileName });
|
|
if (err.http_status === 413) {
|
|
desc = _t(
|
|
"The file '%(fileName)s' exceeds this homeserver's size limit for uploads",
|
|
{ fileName: upload.fileName },
|
|
);
|
|
}
|
|
// FIXME: Using an import will result in Element crashing
|
|
const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
|
|
Modal.createTrackedDialog('Upload failed', '', ErrorDialog, {
|
|
title: _t('Upload Failed'),
|
|
description: desc,
|
|
});
|
|
}
|
|
}).finally(() => {
|
|
for (let i = 0; i < this.inprogress.length; ++i) {
|
|
if (this.inprogress[i].promise === upload.promise) {
|
|
this.inprogress.splice(i, 1);
|
|
break;
|
|
}
|
|
}
|
|
if (error) {
|
|
// 413: File was too big or upset the server in some way:
|
|
// clear the media size limit so we fetch it again next time
|
|
// we try to upload
|
|
if (error && error.http_status === 413) {
|
|
this.mediaConfig = null;
|
|
}
|
|
dis.dispatch<UploadErrorPayload>({ action: Action.UploadFailed, upload, error });
|
|
} else {
|
|
dis.dispatch<UploadFinishedPayload>({ action: Action.UploadFinished, upload });
|
|
dis.dispatch({ action: 'message_sent' });
|
|
}
|
|
});
|
|
}
|
|
|
|
private isFileSizeAcceptable(file: File) {
|
|
if (this.mediaConfig !== null &&
|
|
this.mediaConfig["m.upload.size"] !== undefined &&
|
|
file.size > this.mediaConfig["m.upload.size"]) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
private ensureMediaConfigFetched(matrixClient: MatrixClient) {
|
|
if (this.mediaConfig !== null) return;
|
|
|
|
console.log("[Media Config] Fetching");
|
|
return matrixClient.getMediaConfig().then((config) => {
|
|
console.log("[Media Config] Fetched config:", config);
|
|
return config;
|
|
}).catch(() => {
|
|
// Media repo can't or won't report limits, so provide an empty object (no limits).
|
|
console.log("[Media Config] Could not fetch config, so not limiting uploads.");
|
|
return {};
|
|
}).then((config) => {
|
|
this.mediaConfig = config;
|
|
});
|
|
}
|
|
|
|
static sharedInstance() {
|
|
if (window.mxContentMessages === undefined) {
|
|
window.mxContentMessages = new ContentMessages();
|
|
}
|
|
return window.mxContentMessages;
|
|
}
|
|
}
|