webcit-ng/static/js/view_mail.js

   1 // This module handles the view for "mailbox" rooms.
   2 //
   3 // Copyright (c) 2016-2023 by the citadel.org team
   4 //
   5 // This program is open source software.  Use, duplication, or
   6 // disclosure are subject to the GNU General Public License v3.
   7
   8
   9 var displayed_message = 0;                                                      // ID of message currently being displayed
  10 var RefreshMailboxInterval;                                                     // We store our refresh timer here
  11 var highest_mailnum;                                                            // This is used to detect newly arrived mail
  12 var newmail_notify = {
  13         NO  : 0,                                                                // do not perform new mail notifications
  14         YES : 1                                                                 // yes, perform new mail notifications
  15 };
  16
  17
  18 // This is the async back end for mail_delete_selected()
  19 mail_delete_func = async(table, row) => {
  20         let m = parseInt(row["id"].substring(12));                              // derive msgnum from row id
  21
  22         if (is_trash_folder) {
  23                 response = await fetch(
  24                         "/ctdl/r/" + escapeHTMLURI(current_room) + "/" + m,
  25                         {
  26                                 method: "DELETE"                                // If this is the Trash folder, delete permanently
  27                         },
  28                 );
  29         }
  30         else {
  31                 response = await fetch(
  32                         "/ctdl/r/" + escapeHTMLURI(current_room) + "/" + m,
  33                         {
  34                                 method: "MOVE",                                 // Otherwise, move to the Trash folder
  35                                 headers: { "Destination" : "/ctdl/r/_TRASH_" }
  36                         },
  37                 );
  38         }
  39
  40         if (response.ok) {                              // If the server accepted the delete, blank out the message div
  41                 table.deleteRow(row.rowIndex);
  42                 if (m == displayed_message) {
  43                         document.getElementById("ctdl-mailbox-reading-pane").innerHTML = "";
  44                         displayed_message = 0;
  45                 }
  46         }
  47 }
  48
  49
  50 // Delete the selected messages (can be activated by mouse click or keypress)
  51 function mail_delete_selected() {
  52         var table = document.getElementById("ctdl-onscreen-mailbox");
  53         var i, row;
  54         for (i=0; row=table.rows[i]; ++i) {
  55                 if (row.classList.contains("ctdl-mail-selected")) {
  56                         mail_delete_func(table, row);
  57                 }
  58         }
  59 }
  60
  61
  62 // Handler function for keypresses detected while the mail view is displayed.  Mainly for deleting messages.
  63 function mail_keypress(event) {
  64
  65         // If the "ctdl-mailbox-pane" no longer exists, the user has navigated to a different part of the site,
  66         // so cancel the event listener.
  67         try {
  68                 document.getElementById("ctdl-mailbox-pane").innerHTML;
  69         }
  70         catch {
  71                 document.removeEventListener("keydown", mail_keypress);
  72                 return;
  73         }
  74
  75         const key = event.key.toLowerCase();
  76         if (key == "delete") {
  77                 mail_delete_selected();
  78         }
  79
  80 }
  81
  82
  83 // Handler function for dragging email messages to other folders
  84 function mail_dragstart(event) {
  85         var i;
  86         var count = 0;
  87         var table = document.getElementById("ctdl-onscreen-mailbox");
  88
  89         if (event.target.classList.contains("ctdl-mail-selected")) {
  90                 // The row being dragged IS selected.  See if any OTHER rows are selected, and they will come along for the ride.
  91                 for (i=1; row=table.rows[i]; ++i) {
  92                         if (row.classList.contains("ctdl-mail-selected")) {
  93                                 count = count + 1;
  94                         }
  95                 }
  96         }
  97         else {
  98                 // The row being dragged is NOT selected.  It will be dragged on its own, ignoring the selected rows.
  99                 count = 1;
 100         }
 101
 102         // FIXME tell the clipboard what's being moved.
 103
 104         // Set the custom drag image to an envelope + number of messages being dragged
 105         d = document.getElementById("ctdl_draggo");
 106         d.innerHTML = "<font size='+2'><i class='fa fa-envelope' style='color: red'></i> " + count + "</font>"
 107         event.dataTransfer.setDragImage(d, 0, 0);
 108         event.dataTransfer.setData("text/html", "blah blah blah");
 109 }
 110
 111
 112 // Render reply address for a message (FIXME figure out how to deal with "reply-to:")
 113 function reply_addr(msg) {
 114         //if (msg.locl) {
 115                 //return([msg.from]);
 116         //}
 117         //else {
 118                 return([msg.from + " &lt;" + msg.rfca + "&gt;"]);
 119         //}
 120 }
 121
 122
 123 // Render the To: recipients for a reply-all operation
 124 function replyall_to(msg) {
 125         return([...reply_addr(msg), ...msg.rcpt]);
 126 }
 127
 128
 129 // Render a message into the mailbox view
 130 // (We want the message number and the message itself because we need to keep the msgnum for reply purposes)
 131 function mail_render_one(msgnum, msg, target_div, include_controls) {
 132         let div = "";
 133         try {
 134                 outmsg =
 135                   "<div class=\"ctdl-mmsg-wrapper\">"                           // begin message wrapper
 136                 ;
 137
 138                 if (include_controls) {                                         // omit controls if this is a pull quote
 139                         outmsg +=
 140                           render_userpic(msg.from)                              // user avatar
 141                         + "<div class=\"ctdl-mmsg-content\">"                   // begin content
 142                         + "<div class=\"ctdl-msg-header\">"                     // begin header
 143                         + "<span class=\"ctdl-msg-header-info\">"               // begin header info on left side
 144                         + render_msg_author(msg, views.VIEW_MAILBOX)
 145                         + "<span class=\"ctdl-msgdate\">"
 146                         + string_timestamp(msg.time,0)
 147                         + "</span>"                                             // end msgdate
 148                         + "</span>"                                             // end header info on left side
 149                         + "<span class=\"ctdl-msg-header-buttons\">"            // begin buttons on right side
 150
 151                         + "<span class=\"ctdl-msg-button\">"                    // Reply (mail is always Quoted)
 152                         + "<a href=\"javascript:mail_compose(true,'"+msg.wefw+"','"+msgnum+"', reply_addr(msg), [], 'Re: '+msg.subj);\">"
 153                         + "<i class=\"fa fa-reply\"></i> "
 154                         + _("Reply")
 155                         + "</a></span>"
 156
 157                         + "<span class=\"ctdl-msg-button\">"                    // Reply-All (mail is always Quoted)
 158                         + "<a href=\"javascript:mail_compose(true,'"+msg.wefw+"','"+msgnum+"', replyall_to(msg), msg.cccc, 'Re: '+msg.subj);\">"
 159                         + "<i class=\"fa fa-reply-all\"></i> "
 160                         + _("ReplyAll")
 161                         + "</a></span>";
 162
 163                         if (can_delete_messages) {
 164                                 outmsg +=
 165                                 "<span class=\"ctdl-msg-button\">"
 166                                 + "<a href=\"javascript:forum_delete_message('"+div+"','"+msg.msgnum+"');\">"
 167                                 + "<i class=\"fa fa-trash\"></i> "
 168                                 + _("Delete")
 169                                 + "</a></span>";
 170                         }
 171
 172                         outmsg +=
 173                           "</span>";                                            // end buttons on right side
 174
 175                         // Display the To: recipients, if any are present
 176                         if (msg.rcpt) {
 177                                 outmsg += "<br><span>" + _("To:") + " ";
 178                                 for (var r=0; r<msg.rcpt.length; ++r) {
 179                                         if (r != 0) {
 180                                                 outmsg += ", ";
 181                                         }
 182                                         outmsg += escapeHTML(msg.rcpt[r]);
 183                                 }
 184                                 outmsg += "</span>";
 185                         }
 186
 187                         // Display the Cc: recipients, if any are present
 188                         if (msg.cccc) {
 189                                 outmsg += "<br><span>" + _("Cc:") + " ";
 190                                 for (var r=0; r<msg.cccc.length; ++r) {
 191                                         if (r != 0) {
 192                                                 outmsg += ", ";
 193                                         }
 194                                         outmsg += escapeHTML(msg.cccc[r]);
 195                                 }
 196                                 outmsg += "</span>";
 197                         }
 198
 199                         // Display a subject line, but only if the message has a subject (internal Citadel messages often don't)
 200                         if (msg.subj) {
 201                                 outmsg +=
 202                                 "<br><span class=\"ctdl-msgsubject\">" + msg.subj + "</span>";
 203                         }
 204
 205                         outmsg +=
 206                           "</div>";                                             // end header
 207                 }
 208
 209                 outmsg +=
 210                   "<div class=\"ctdl-msg-body\" id=\"" + div + "_body\">"       // begin body
 211                 + msg.text
 212                 + "</div>"                                                      // end body
 213                 + "</div>"                                                      // end content
 214                 + "</div>"                                                      // end wrapper
 215                 ;
 216         }
 217         catch(err) {
 218                 outmsg = "<div class=\"ctdl-mmsg-wrapper\">" + err.message + "</div>";
 219         }
 220
 221         target_div.innerHTML = outmsg;
 222 }
 223
 224
 225 // display an individual message (note: this wants an actual div object, not a string containing the name of a div)
 226 function mail_display_message(msgnum, target_div, include_controls) {
 227         url = "/ctdl/r/" + escapeHTMLURI(current_room) + "/" + msgnum + "/json";
 228         mail_fetch_msg = async() => {
 229                 response = await fetch(url);
 230                 msg = await(response.json());
 231                 if (response.ok) {
 232                         mail_render_one(msgnum, msg, target_div, include_controls);
 233                 }
 234         }
 235         mail_fetch_msg();
 236 }
 237
 238
 239 // A message has been selected...
 240 function click_message(event, msgnum) {
 241         var table = document.getElementById("ctdl-onscreen-mailbox");
 242         var i, m, row;
 243
 244         // ctrl + click = toggle an individual message without changing existing selection
 245         if (event.ctrlKey) {
 246                 document.getElementById("ctdl-msgsum-" + msgnum).classList.toggle("ctdl-mail-selected");
 247         }
 248
 249         // shift + click = select a range of messages (start with row 1 because row 0 is the header)
 250         else if (event.shiftKey) {
 251                 for (i=1; row=table.rows[i]; ++i) {
 252                         m = parseInt(row["id"].substring(12));                          // derive msgnum from row id
 253                         if (
 254                                 ((msgnum >= displayed_message) && (m >= displayed_message) && (m <= msgnum))
 255                                 || ((msgnum <= displayed_message) && (m <= displayed_message) && (m >= msgnum))
 256                         ) {
 257                                 row.classList.add("ctdl-mail-selected");
 258                         }
 259                         else {
 260                                 row.classList.remove("ctdl-mail-selected");
 261                         }
 262                 }
 263         }
 264
 265         // click + no modifiers = select one message and unselect all others (start with row 1 because row 0 is the header)
 266         else {
 267                 for (i=1; row=table.rows[i]; ++i) {
 268                         if (row["id"] == "ctdl-msgsum-" + msgnum) {
 269                                 row.classList.add("ctdl-mail-selected");
 270                         }
 271                         else {
 272                                 row.classList.remove("ctdl-mail-selected");
 273                         }
 274                 }
 275         }
 276
 277         // display the message if it isn't already displayed
 278         if (displayed_message != msgnum) {
 279                 displayed_message = msgnum;
 280                 mail_display_message(msgnum, document.getElementById("ctdl-mailbox-reading-pane"), 1);
 281         }
 282 }
 283
 284
 285 // render one row in the mailbox table (this could be called from one of several places)
 286 function mail_render_row(msg, is_selected) {
 287         row     = "<tr "
 288                 + "id=\"ctdl-msgsum-" + msg["msgnum"] + "\" "
 289                 + (is_selected ? "class=\"ctdl-mail-selected\" " : "")
 290                 + "onClick=\"click_message(event," + msg["msgnum"] + ");\""
 291                 + "onselectstart=\"return false;\" "
 292                 + "draggable=\"true\" "
 293                 + "ondragstart=\"mail_dragstart(event)\" "
 294                 + ">"
 295                 + "<td class=\"ctdl-mail-subject\">" + msg["subject"] + "</td>"
 296                 + "<td class=\"ctdl-mail-sender\">" + msg["author"] + "</td>"
 297                 + "<td class=\"ctdl-mail-date\">" + string_timestamp(msg["time"],1) + "</td>"
 298                 + "<td class=\"ctdl-mail-msgnum\">" + msg["msgnum"] + "</td>"
 299                 + "</tr>";
 300         return(row);
 301 }
 302
 303
 304 // RENDERER FOR THIS VIEW
 305 function view_render_mail() {
 306         // Put the "enter new message" button into the topbar
 307         document.getElementById("ctdl-newmsg-button").innerHTML = "<i class=\"fa fa-edit\"></i>" + _("Write mail");
 308         document.getElementById("ctdl-newmsg-button").style.display = "block";
 309
 310         // Put the "delete message(s)" button into the topbar
 311         let d = document.getElementById("ctdl-delete-button");
 312         d.innerHTML = "<i class=\"fa fa-trash\"></i>" + _("Delete");
 313         d.style.display = "block";
 314         //d.addEventListener("click", mail_delete_selected);
 315
 316         document.getElementById("ctdl-main").innerHTML
 317                 = "<div id=\"ctdl-mailbox-grid-container\" class=\"ctdl-mailbox-grid-container\">"
 318                 + "<div id=\"ctdl-mailbox-pane\" class=\"ctdl-mailbox-pane\"></div>"
 319                 + "<div id=\"ctdl-mailbox-reading-pane\" class=\"ctdl-mailbox-reading-pane\"></div>"
 320                 + "</div>"
 321         ;
 322
 323         highest_mailnum = 0;                                    // Keep track of highest message number to track newly arrived messages
 324         render_mailbox_display(newmail_notify.NO);
 325         try {                                                   // if this was already set up, clear it so there aren't multiple
 326                 clearInterval(RefreshMailboxInterval);
 327         }
 328         catch {
 329         }
 330         RefreshMailboxInterval = setInterval(refresh_mail_display, 10000);
 331 }
 332
 333
 334 // Refresh the mailbox, either for the first time or whenever needed
 335 function refresh_mail_display() {
 336         // If the "ctdl-mailbox-pane" no longer exists, the user has navigated to a different part of the site,
 337         // so cancel the refresh.
 338         try {
 339                 document.getElementById("ctdl-mailbox-pane").innerHTML;
 340         }
 341         catch {
 342                 clearInterval(RefreshMailboxInterval);
 343                 return;
 344         }
 345
 346         // Ask the server if the room has been written to since our last look at it.
 347         url = "/ctdl/r/" + escapeHTMLURI(current_room) + "/stat";
 348         fetch_stat = async() => {
 349                 response = await fetch(url);
 350                 stat = await(response.json());
 351                 if (stat.room_mtime > room_mtime) {                     // FIXME commented out to force refreshes
 352                         room_mtime = stat.room_mtime;
 353                         render_mailbox_display(newmail_notify.YES);
 354                 }
 355         }
 356         fetch_stat();
 357 }
 358
 359
 360 // This is where the rendering of the message list in the mailbox view is performed.
 361 // Set notify to newmail_notify.NO or newmail_notify.YES depending on whether we are interested in the arrival of new messages.
 362 function render_mailbox_display(notify) {
 363
 364         url = "/ctdl/r/" + escapeHTMLURI(current_room) + "/mailbox";
 365         fetch_mailbox = async() => {
 366                 response = await fetch(url);
 367                 msgs = await(response.json());
 368                 if (response.ok) {
 369                         var previously_selected = [];
 370                         var oldtable = document.getElementById("ctdl-onscreen-mailbox");
 371                         var i, row;
 372
 373                         // If one or more messages was already selected, remember them so we can re-select them
 374                         if ( (displayed_message > 0) && (oldtable) ) {
 375                                 for (i=0; row=oldtable.rows[i]; ++i) {
 376                                         if (row.classList.contains("ctdl-mail-selected")) {
 377                                                 previously_selected.push(parseInt(row["id"].substring(12)));
 378                                         }
 379                                 }
 380                         }
 381
 382                         // begin rendering the mailbox table
 383                         box =   "<table id=\"ctdl-onscreen-mailbox\" class=\"ctdl-mailbox-table\" width=100%><tr>"
 384                                 + "<th>" + _("Subject") + "</th>"
 385                                 + "<th>" + _("Sender") + "</th>"
 386                                 + "<th>" + _("Date") + "</th>"
 387                                 + "<th>#</th>"
 388                                 + "</tr>";
 389
 390                         for (let i=0; i<msgs.length; ++i) {
 391                                 let m = parseInt(msgs[i].msgnum);
 392                                 let s = (previously_selected.includes(m));
 393                                 box += mail_render_row(msgs[i], s);
 394                                 if (m > highest_mailnum) {
 395                                         highest_mailnum = m;
 396                                 }
 397                         }
 398
 399                         box +=  "</table>";
 400                         document.getElementById("ctdl-mailbox-pane").innerHTML = box;
 401                         document.addEventListener("keydown", mail_keypress);
 402                 }
 403         }
 404         fetch_mailbox();
 405 }
 406
 407
 408 // Compose a new mail message (called by the Reply button here, or by the dispatcher in views.js)
 409 function mail_compose(is_quoted, references, quoted_msgnum, m_to, m_cc, m_subject) {
 410         // m_to will be an array of zero or more recipients for the To: field.  Convert it to a string.
 411         if (m_to) {
 412                 m_to = Array.from(new Set(m_to));       // remove dupes
 413                 m_to_str = "";
 414                 for (i=0; i<m_to.length; ++i) {
 415                         if (i > 0) {
 416                                 m_to_str += ", ";
 417                         }
 418                         m_to_str += m_to[i].replaceAll("<", "&lt;").replaceAll(">", "&gt;");
 419                 }
 420         }
 421         else {
 422                 m_to_str = "";
 423         }
 424
 425         // m_to will be an array of zero or more recipients for the Cc: field.  Convert it to a string.
 426         if (m_cc) {
 427                 m_cc = Array.from(new Set(m_cc));       // remove dupes
 428                 m_cc_str = "";
 429                 for (i=0; i<m_cc.length; ++i) {
 430                         if (i > 0) {
 431                                 m_cc_str += ", ";
 432                         }
 433                         m_cc_str += m_cc[i].replaceAll("<", "&lt;").replaceAll(">", "&gt;");
 434                 }
 435         }
 436         else {
 437                 m_cc_str = "";
 438         }
 439
 440         quoted_div_name = randomString();
 441
 442         // Make the "Write mail" button disappear.  We're already there!
 443         document.getElementById("ctdl-newmsg-button").style.display = "none";
 444
 445         // is_quoted    true or false depending on whether the user selected "reply quoted" (is this appropriate for mail?)
 446         // references   list of references, be sure to use this in a reply
 447         // msgid        if a reply, the msgid of the most recent message in the chain, the one to which we are replying
 448
 449         // Now display the screen.
 450         compose_screen =
 451                 // Hidden values that we are storing right here in the document tree for later
 452                   "<input id=\"ctdl_mc_is_quoted\" style=\"display:none\" value=\"" + is_quoted + "\"></input>"
 453                 + "<input id=\"ctdl_mc_references\" style=\"display:none\" value=\"" + references + "\"></input>"
 454
 455                 // Header fields, the composition window, and the button bar are arranged using a Grid layout.
 456                 + "<div id=\"ctdl-compose-mail\" class=\"ctdl-compose-mail\">"
 457
 458                 // Visible To: field, plus a box to make the CC/BCC lines appear
 459                 + "<div class=\"ctdl-compose-to-label\">" + _("To:") + "</div>"
 460                 + "<div class=\"ctdl-compose-to-line\">"
 461                 + "<div class=\"ctdl-compose-to-field\" id=\"ctdl-compose-to-field\" contenteditable=\"true\">" + m_to_str + "</div>"
 462                 + "<div class=\"ctdl-cc-bcc-buttons ctdl-msg-button\" id=\"ctdl-cc-bcc-buttons\" "
 463                 + "onClick=\"make_cc_bcc_visible()\">"
 464                 + _("CC:") + "/" + _("BCC:") + "</div>"
 465                 + "</div>"
 466
 467                 // CC/BCC
 468                 + "<div class=\"ctdl-compose-cc-label\" id=\"ctdl-compose-cc-label\">" + _("CC:") + "</div>"
 469                 + "<div class=\"ctdl-compose-cc-field\" id=\"ctdl-compose-cc-field\" contenteditable=\"true\">" + m_cc_str + "</div>"
 470                 + "<div class=\"ctdl-compose-bcc-label\" id=\"ctdl-compose-bcc-label\">" + _("BCC:") + "</div>"
 471                 + "<div class=\"ctdl-compose-bcc-field\" id=\"ctdl-compose-bcc-field\" contenteditable=\"true\"></div>"
 472
 473                 // Visible subject field
 474                 + "<div class=\"ctdl-compose-subject-label\">" + _("Subject:") + "</div>"
 475                 + "<div class=\"ctdl-compose-subject-field\" id=\"ctdl-compose-subject-field\" contenteditable=\"true\">" + m_subject + "</div>"
 476
 477                 // Message composition box
 478                 + "<div class=\"ctdl-compose-message-box\" id=\"ctdl-editor-body\" contenteditable=\"true\">"
 479         ;
 480
 481         if (is_quoted) {
 482                 compose_screen += "<br><br><blockquote><div id=\"" + quoted_div_name + "\"></div></blockquote>";
 483         }
 484
 485         compose_screen +=
 486                   "</div>"
 487
 488                 // The button bar is a Grid element, and is also a Flexbox container.
 489                 + "<div class=\"ctdl-compose-toolbar\">"
 490                 + "<span class=\"ctdl-msg-button\" onclick=\"mail_send_message()\"><i class=\"fa fa-paper-plane\" style=\"color:green\"></i> " + _("Send message") + "</span>"
 491                 + "<span class=\"ctdl-msg-button\">" + _("Save to Drafts") + "</span>"
 492                 + "<span class=\"ctdl-msg-button\">" + _("Attachments:") + " 0" + "</span>"
 493                 + "<span class=\"ctdl-msg-button\">" + _("Contacts") + "</span>"
 494                 + "<span class=\"ctdl-msg-button\" onClick=\"gotoroom(current_room)\"><i class=\"fa fa-trash\" style=\"color:red\"></i> " + _("Cancel") + "</span>"
 495                 + "</div>"
 496         ;
 497
 498         document.getElementById("ctdl-main").innerHTML = compose_screen;
 499         mail_display_message(quoted_msgnum, document.getElementById(quoted_div_name), 0);
 500         if (m_cc) {
 501                 document.getElementById("ctdl-compose-cc-label").style.display = "block";
 502                 document.getElementById("ctdl-compose-cc-field").style.display = "block";
 503         }
 504 }
 505
 506
 507 // Called when the user clicks the button to make the hidden "CC" and "BCC" lines appear.
 508 // It is also called automatically during a Reply when CC is pre-populated.
 509 function make_cc_bcc_visible() {
 510         document.getElementById("ctdl-cc-bcc-buttons").style.display = "none";
 511         document.getElementById("ctdl-compose-bcc-label").style.display = "block";
 512         document.getElementById("ctdl-compose-bcc-field").style.display = "block";
 513 }
 514
 515
 516 // Helper function for mail_send_messages() to extract and decode metadata values.
 517 function msm_field(element_name, separator) {
 518         let s1 = document.getElementById(element_name).innerHTML;
 519         let s2 = s1.replaceAll("|",separator);          // Replace "|" with "!" because "|" is a field separator in Citadel
 520         let s3 = decodeURI(s2);
 521         let s4 = document.createElement("textarea");    // This One Weird Trick Unescapes All HTML Entities
 522         s4.innerHTML = s3;
 523         let s5 = s4.value;
 524         return(s5);
 525 }
 526
 527
 528 // Save the posted message to the server
 529 function mail_send_message() {
 530
 531         document.body.style.cursor = "wait";
 532         let url = "/ctdl/r/" + escapeHTMLURI(current_room)
 533                 + "/dummy_name_for_new_mail"
 534                 + "?wefw="      + msm_field("ctdl_mc_references", "!")                          // references (if present)
 535                 + "&subj="      + msm_field("ctdl-compose-subject-field", " ")                  // subject (if present)
 536                 + "&mailto="    + msm_field("ctdl-compose-to-field", ",")                       // To: (required)
 537                 + "&mailcc="    + msm_field("ctdl-compose-cc-field", ",")                       // Cc: (if present)
 538                 + "&mailbcc="   + msm_field("ctdl-compose-bcc-field", ",")                      // Bcc: (if present)
 539         ;
 540         boundary = randomString();
 541         body_text =
 542                 "--" + boundary + "\r\n"
 543                 + "Content-type: text/html\r\n"
 544                 + "Content-transfer-encoding: quoted-printable\r\n"
 545                 + "\r\n"
 546                 + quoted_printable_encode(
 547                         "<html><body>" + document.getElementById("ctdl-editor-body").innerHTML + "</body></html>"
 548                 ) + "\r\n"
 549                 + "--" + boundary + "--\r\n"
 550         ;
 551
 552         var request = new XMLHttpRequest();
 553         request.open("PUT", url, true);
 554         request.setRequestHeader("Content-type", "multipart/mixed; boundary=\"" + boundary + "\"");
 555         request.onreadystatechange = function() {
 556                 if (request.readyState == 4) {
 557                         document.body.style.cursor = "default";
 558                         if (Math.trunc(request.status / 100) == 2) {
 559                                 headers = request.getAllResponseHeaders().split("\n");
 560                                 for (var i in headers) {
 561                                         if (headers[i].startsWith("etag: ")) {
 562                                                 new_msg_num = headers[i].split(" ")[1];
 563                                         }
 564                                 }
 565
 566                                 // After saving the message, go back to the mailbox view.
 567                                 gotoroom(current_room);
 568
 569                         }
 570                         else {
 571                                 error_message = request.responseText;
 572                                 if (error_message.length == 0) {
 573                                         error_message = _("An error has occurred.");
 574                                 }
 575                                 alert(error_message);                                           // editor remains open
 576                         }
 577                 }
 578         };
 579         request.send(body_text);
 580 }