516 lines
13 KiB
TypeScript
516 lines
13 KiB
TypeScript
import streamSaver from "streamsaver";
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import JSZip from "jszip";
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import { decryptFile } from "../DecryptFile";
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import { mediaFromContent, mediaFromMxc } from "../../customisations/Media";
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import { textForEvent } from "../../TextForEvent";
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import { Room } from 'matrix-js-sdk/src/models/room';
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import { MatrixEvent } from "matrix-js-sdk/src/models/event";
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import { getUserNameColorClass } from "../FormattingUtils";
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import { Exporter } from "./Exporter";
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const css = `
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body {
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margin: 0;
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font: 12px/18px 'Inter', 'Open Sans',"Lucida Grande","Lucida Sans Unicode",Arial,Helvetica,Verdana,sans-serif;
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}
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.mx_clearfix:after {
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content: " ";
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visibility: hidden;
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display: block;
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height: 0;
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clear: both;
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}
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.mx_pull_left {
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float: left;
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}
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.mx_pull_right {
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float: right;
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}
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.mx_page_wrap {
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background-color: #ffffff;
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color: #000000;
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}
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.mx_page_wrap a {
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color: #168acd;
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text-decoration: none;
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}
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.mx_page_wrap a:hover {
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text-decoration: underline;
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}
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.mx_page_header {
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position: fixed;
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z-index: 10;
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background-color: #ffffff;
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width: 100%;
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border-bottom: 1px solid #e3e6e8;
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}
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.mx_page_header .mx_content {
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width: 480px;
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margin: 0 auto;
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border-radius: 0 !important;
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}
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.mx_page_header a.mx_content {
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background-repeat: no-repeat;
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background-position: 24px 21px;
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background-size: 24px 24px;
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}
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.mx_bold {
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color: #212121;
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font-weight: 700;
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}
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.mx_details {
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color: #70777b;
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}
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.mx_page_header .mx_content .mx_text {
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padding: 24px 24px 22px 24px;
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font-size: 22px;
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overflow: hidden;
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text-overflow: ellipsis;
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white-space: nowrap;
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text-align: center;
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}
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.mx_page_header a.mx_content .mx_text {
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padding: 24px 24px 22px 82px;
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}
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.mx_page_body {
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padding-top: 64px;
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width: 700px;
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margin: 0 auto;
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}
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.mx_userpic {
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display: block;
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border-radius: 50%;
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overflow: hidden;
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}
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.mx_userpic .mx_initials {
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display: block;
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color: #fff;
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text-align: center;
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text-transform: uppercase;
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user-select: none;
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}
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a.mx_block_link {
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display: block;
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text-decoration: none !important;
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border-radius: 4px;
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}
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a.mx_block_link:hover {
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text-decoration: none !important;
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background-color: #f5f7f8;
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}
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.mx_history {
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padding: 16px 0;
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}
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.mx_message {
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margin: 0 -10px;
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transition: background-color 2.0s ease;
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}
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div.mx_selected {
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background-color: rgba(242,246,250,255);
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transition: background-color 0.5s ease;
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}
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.mx_service {
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padding: 10px 24px;
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}
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.mx_service .mx_body {
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text-align: center;
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}
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.mx_message .mx_userpic .mx_initials {
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font-size: 16px;
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}
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.mx_default {
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padding: 10px;
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}
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.mx_default.mx_joined {
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margin-top: -10px;
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}
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.mx_default .mx_from_name {
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font-weight: 700;
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padding-bottom: 5px;
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}
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.mx_default .mx_body {
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margin-left: 60px;
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}
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.mx_default .mx_text {
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word-wrap: break-word;
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line-height: 150%;
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}
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.mx_default .mx_reply_to,
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.mx_default .mx_media_wrap {
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padding-bottom: 5px;
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}
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.mx_default .mx_media {
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margin: 0 -10px;
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padding: 5px 10px;
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}
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.mx_default .mx_media .mx_fill,
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.mx_default .mx_media .mx_thumb {
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width: 48px;
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height: 48px;
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border-radius: 50%;
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}
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.mx_default .mx_media .mx_fill {
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background-repeat: no-repeat;
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background-position: 12px 12px;
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background-size: 24px 24px;
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}
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.mx_default .mx_media .mx_title {
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padding-top: 4px;
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font-size: 14px;
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}
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.mx_default .mx_media .mx_description {
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color: #000000;
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padding-top: 4px;
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font-size: 13px;
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}
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.mx_default .mx_media .mx_status {
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padding-top: 4px;
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font-size: 13px;
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}
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.mx_default .mx_photo {
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display: block;
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}
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.mx_from_name.mx_Username_color1{
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color: #368bd6;
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}
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.mx_initials_wrap.mx_Username_color1{
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background-color: #368bd6;
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}
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.mx_from_name.mx_Username_color2{
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color: #ac3ba8;
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}
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.mx_initials_wrap.mx_Username_color2{
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background-color: #ac3ba8;
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}
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.mx_from_name.mx_Username_color3{
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color: #03b381;
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}
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.mx_initials_wrap.mx_Username_color3{
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background-color: #03b381;
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}
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.mx_from_name.mx_Username_color4{
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color: #e64f7a;
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}
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.mx_initials_wrap.mx_Username_color4{
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background-color: #e64f7a;
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}
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.mx_from_name.mx_Username_color5{
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color: #ff812d;
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}
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.mx_initials_wrap.mx_Username_color5{
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background-color: #ff812d;
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}
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.mx_from_name.mx_Username_color6{
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color: #2dc2c5;
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}
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.mx_initials_wrap.mx_Username_color6{
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background-color: #2dc2c5;
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}
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.mx_from_name.mx_Username_color7{
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color: #5c56f5;
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}
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.mx_initials_wrap.mx_Username_color7{
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background-color: #5c56f5;
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}
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.mx_from_name.mx_Username_color8{
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color: #74d12c;
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}
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.mx_initials_wrap.mx_Username_color8{
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background-color: #74d12c;
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}
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`;
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export default class HTMLExporter extends Exporter {
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protected zip: JSZip;
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protected avatars: Map<string, boolean>;
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constructor(res: MatrixEvent[], room: Room) {
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super(res, room);
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this.zip = new JSZip();
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this.avatars = new Map<string, boolean>();
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}
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protected wrapHTML(content: string, room: Room) {
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return `
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8" />
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<title>Exported Data</title>
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<meta content="width=device-width, initial-scale=1.0" name="viewport" />
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<link href="css/style.css" rel="stylesheet" />
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</head>
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<body>
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<div class="mx_page_wrap">
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<div class="mx_page_header">
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<div class="mx_content">
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<div class="mx_text mx_bold">${room.name}</div>
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</div>
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</div>
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<div class="mx_page_body mx_chat_page">
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<div class="mx_history">
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${content}
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</div>
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</div>
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</div>
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</body>
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</html>
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`
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}
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protected isEdit(event: MatrixEvent) {
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if (event.getType() === "m.room.message" && event.getContent().hasOwnProperty("m.new_content")) return true;
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return false;
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}
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protected async getUserAvatar(event: MatrixEvent) {
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const member = event.sender;
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if (!member.getMxcAvatarUrl()) {
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return `
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<div class="mx_pull_left mx_userpic_wrap">
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<div
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class="mx_userpic mx_initials_wrap ${getUserNameColorClass(event.getSender())}"
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style="width: 42px;height: 42px;"
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>
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<div class="mx_initials" style="line-height: 42px;" src="users/${member.userId}">
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${event.sender.name[0]}
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</div>
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</div>
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</div>
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`;
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} else {
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const imageUrl = mediaFromMxc(member.getMxcAvatarUrl()).getThumbnailOfSourceHttp(42, 42, "crop");
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if (!this.avatars.has(member.userId)) {
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this.avatars.set(member.userId, true);
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const image = await fetch(imageUrl);
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const blob = await image.blob();
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this.zip.file(`users/${member.userId}`, blob);
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}
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return `
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<div class="mx_pull_left mx_userpic_wrap">
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<div class="mx_userpic" style="width: 42px; height: 42px;">
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<img
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class="mx_initials"
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style="width: 42px;height: 42px;line-height:42px;"
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src="users/${member.userId}"
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/>
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</div>
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</div>
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`;
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}
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}
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protected async getImageData(event: MatrixEvent) {
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let blob: Blob;
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try {
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const isEncrypted = event.isEncrypted();
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const content = event.getContent();
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if (isEncrypted) {
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blob = await decryptFile(content.file);
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} else {
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const media = mediaFromContent(event.getContent());
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const image = await fetch(media.srcHttp);
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blob = await image.blob();
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}
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} catch (err) {
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console.log("Error decrypting image");
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}
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return blob;
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}
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//Gets the event_id of an event to which an event is replied
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protected getBaseEventId = (event: MatrixEvent) => {
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const isEncrypted = event.isEncrypted();
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// If encrypted, in_reply_to lies in event.event.content
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const content = isEncrypted ? event.event.content : event.getContent();
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const relatesTo = content["m.relates_to"];
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return (relatesTo && relatesTo["m.in_reply_to"]) ? relatesTo["m.in_reply_to"]["event_id"] : null;
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};
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protected dateSeparator(event: MatrixEvent, prevEvent: MatrixEvent) {
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const prevDate = prevEvent ? new Date(prevEvent.getTs()) : null;
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const currDate = new Date(event.getTs());
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if (!prevDate || currDate.setHours(0, 0, 0, 0) !== prevDate.setHours(0, 0, 0, 0)) {
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return `
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<div class="mx_message mx_service">
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<div class="mx_body mx_details">
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${new Date(event.getTs())
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.toLocaleString("en-us", {year: "numeric", month: "long", day: "numeric" })}
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</div>
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</div>
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`;
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}
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return "";
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}
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protected async createMessageBody(event: MatrixEvent, joined = false, isReply = false, replyId = null) {
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const userPic = await this.getUserAvatar(event);
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let messageBody = "";
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switch (event.getContent().msgtype) {
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case "m.text":
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messageBody = `<div class="mx_text"> ${event.getContent().body} </div>`;
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break;
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case "m.image": {
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messageBody = `
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<a class="mx_photo_wrap mx_clearfix mx_pull_left" href="images/${event.getId()}.png">
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<img
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class="mx_photo"
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style="max-width: 600px; max-height: 500px;"
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src="images/${event.getId()}.png"
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/>
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</a>`;
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const blob = await this.getImageData(event);
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this.zip.file(`images/${event.getId()}.png`, blob);
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}
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break;
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default:
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break;
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}
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return `
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<div class="mx_message mx_default mx_clearfix ${joined ? `mx_joined` : ``}" id="${event.getId()}">
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${!joined ? userPic : ``}
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<div class="mx_body">
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<div class="mx_pull_right mx_date mx_details" title="${new Date(event.getTs())}">
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${new Date(event.getTs()).toLocaleTimeString().slice(0, -3)}
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</div>
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${!joined ? `
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<div class="mx_from_name ${getUserNameColorClass(event.getSender())}">
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${event.sender.name}
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</div>`: ``}
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${isReply ?
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` <div class="mx_reply_to mx_details">
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In reply to <a href="#${replyId}">this message</a>
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</div>`: ``}
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${messageBody}
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</div>
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</div>
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`;
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}
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protected async createHTML(events: MatrixEvent[], room: Room) {
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let content = "";
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let prevEvent = null;
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for (const event of events) {
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// As the getContent of the edited event fetches the latest edit, there is no need to process edit events
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if (this.isEdit(event)) continue;
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content += this.dateSeparator(event, prevEvent);
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if (event.getType() === "m.room.message") {
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const replyTo = this.getBaseEventId(event);
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const shouldBeJoined = prevEvent && prevEvent.getContent().msgtype === "m.text"
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&& event.sender.userId === prevEvent.sender.userId && !this.dateSeparator(event, prevEvent) && !replyTo;
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const body = await this.createMessageBody(event, shouldBeJoined, !!replyTo, replyTo);
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content += body;
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} else {
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const eventText = textForEvent(event);
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content += eventText ? `
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<div class="mx_message mx_service" id="${event.getId()}">
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<div class="mx_body mx_details">
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${textForEvent(event)}
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</div>
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</div>
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` : "";
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}
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prevEvent = event;
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}
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return this.wrapHTML(content, room);
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}
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public async export() {
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const html = await this.createHTML(this.res, this.room);
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this.zip.file("index.html", html);
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this.zip.file("css/style.css", css);
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const filename = `matrix-export-${new Date().toISOString()}.zip`;
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//Generate the zip file asynchronously
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const blob = await this.zip.generateAsync({ type: "blob" });
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//Create a writable stream to the directory
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const fileStream = streamSaver.createWriteStream(filename, { size: blob.size });
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const writer = fileStream.getWriter();
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// Here we chunk the blob into pieces of 10 MB, the size might be dynamically generated.
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// This can be used to keep track of the progress
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const sliceSize = 10 * 1e6;
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for (let fPointer = 0; fPointer < blob.size; fPointer += sliceSize) {
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const blobPiece = blob.slice(fPointer, fPointer + sliceSize);
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const reader = new FileReader();
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const waiter = new Promise<void>((resolve, reject) => {
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reader.onloadend = evt => {
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const arrayBufferNew: any = evt.target.result;
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const uint8ArrayNew = new Uint8Array(arrayBufferNew);
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writer.write(uint8ArrayNew);
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resolve();
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};
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reader.readAsArrayBuffer(blobPiece);
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});
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await waiter;
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}
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writer.close();
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}
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}
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