webcit-ng/static/js/view_mail.js

   1 // This module handles the view for "mailbox" rooms.
   2 //
   3 // Copyright (c) 2016-2022 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         response = await fetch(
  22                 "/ctdl/r/" + escapeHTMLURI(current_room) + "/" + m,
  23                 {
  24                         method: "MOVE",
  25                         headers: { "Destination" : "/ctdl/r/_TRASH_" }
  26                 },
  27         );
  28         if (response.ok) {                              // If the server accepted the delete, blank out the message div.
  29                 table.deleteRow(row.rowIndex);
  30                 if (m == displayed_message) {
  31                         document.getElementById("ctdl-mailbox-reading-pane").innerHTML = "";
  32                         displayed_message = 0;
  33                 }
  34         }
  35 }
  36
  37
  38 // Delete the selected messages (can be activated by mouse click or keypress)
  39 function mail_delete_selected() {
  40         var table = document.getElementById("ctdl-onscreen-mailbox");
  41         var i, row;
  42         for (i=0; row=table.rows[i]; ++i) {
  43                 if (row.classList.contains("ctdl-mail-selected")) {
  44                         mail_delete_func(table, row);
  45                 }
  46         }
  47 }
  48
  49
  50 // Handler function for keypresses detected while the mail view is displayed.  Mainly for deleting messages.
  51 function mail_keypress(event) {
  52
  53         // If the "ctdl-mailbox-pane" no longer exists, the user has navigated to a different part of the site,
  54         // so cancel the event listener.
  55         try {
  56                 document.getElementById("ctdl-mailbox-pane").innerHTML;
  57         }
  58         catch {
  59                 document.removeEventListener("keydown", mail_keypress);
  60                 return;
  61         }
  62
  63         const key = event.key.toLowerCase();
  64         if (key == "delete") {
  65                 mail_delete_selected();
  66         }
  67
  68 }
  69
  70
  71 // Render reply address for a message (FIXME figure out how to deal with "reply-to:")
  72 function reply_addr(msg) {
  73         //if (msg.locl) {
  74                 //return([msg.from]);
  75         //}
  76         //else {
  77                 return([msg.from + " &lt;" + msg.rfca + "&gt;"]);
  78         //}
  79 }
  80
  81
  82 // Render the To: recipients for a reply-all operation
  83 function replyall_to(msg) {
  84         return([...reply_addr(msg), ...msg.rcpt]);
  85 }
  86
  87
  88 // Render a message into the mailbox view
  89 // (We want the message number and the message itself because we need to keep the msgnum for reply purposes)
  90 function mail_render_one(msgnum, msg, target_div, include_controls) {
  91         let div = "";
  92         try {
  93                 outmsg =
  94                   "<div class=\"ctdl-mmsg-wrapper\">"                           // begin message wrapper
  95                 ;
  96
  97                 if (include_controls) {                                         // omit controls if this is a pull quote
  98                         outmsg +=
  99                           render_userpic(msg.from)                              // user avatar
 100                         + "<div class=\"ctdl-mmsg-content\">"                   // begin content
 101                         + "<div class=\"ctdl-msg-header\">"                     // begin header
 102                         + "<span class=\"ctdl-msg-header-info\">"               // begin header info on left side
 103                         + render_msg_author(msg, views.VIEW_MAILBOX)
 104                         + "<span class=\"ctdl-msgdate\">"
 105                         + string_timestamp(msg.time,0)
 106                         + "</span>"                                             // end msgdate
 107                         + "</span>"                                             // end header info on left side
 108                         + "<span class=\"ctdl-msg-header-buttons\">"            // begin buttons on right side
 109
 110                         + "<span class=\"ctdl-msg-button\">"                    // Reply (mail is always Quoted)
 111                         + "<a href=\"javascript:mail_compose(true,'"+msg.wefw+"','"+msgnum+"', reply_addr(msg), [], 'Re: '+msg.subj);\">"
 112                         + "<i class=\"fa fa-reply\"></i> "
 113                         + _("Reply")
 114                         + "</a></span>"
 115
 116                         + "<span class=\"ctdl-msg-button\">"                    // Reply-All (mail is always Quoted)
 117                         + "<a href=\"javascript:mail_compose(true,'"+msg.wefw+"','"+msgnum+"', replyall_to(msg), msg.cccc, 'Re: '+msg.subj);\">"
 118                         + "<i class=\"fa fa-reply-all\"></i> "
 119                         + _("ReplyAll")
 120                         + "</a></span>";
 121
 122                         if (can_delete_messages) {
 123                                 outmsg +=
 124                                 "<span class=\"ctdl-msg-button\">"
 125                                 + "<a href=\"javascript:forum_delete_message('"+div+"','"+msg.msgnum+"');\">"
 126                                 + "<i class=\"fa fa-trash\"></i> "
 127                                 + _("Delete")
 128                                 + "</a></span>";
 129                         }
 130
 131                         outmsg +=
 132                           "</span>";                                            // end buttons on right side
 133
 134                         // Display the To: recipients, if any are present
 135                         if (msg.rcpt) {
 136                                 outmsg += "<br><span>" + _("To:") + " ";
 137                                 for (var r=0; r<msg.rcpt.length; ++r) {
 138                                         if (r != 0) {
 139                                                 outmsg += ", ";
 140                                         }
 141                                         outmsg += escapeHTML(msg.rcpt[r]);
 142                                 }
 143                                 outmsg += "</span>";
 144                         }
 145
 146                         // Display the Cc: recipients, if any are present
 147                         if (msg.cccc) {
 148                                 outmsg += "<br><span>" + _("Cc:") + " ";
 149                                 for (var r=0; r<msg.cccc.length; ++r) {
 150                                         if (r != 0) {
 151                                                 outmsg += ", ";
 152                                         }
 153                                         outmsg += escapeHTML(msg.cccc[r]);
 154                                 }
 155                                 outmsg += "</span>";
 156                         }
 157
 158                         // Display a subject line, but only if the message has a subject (internal Citadel messages often don't)
 159                         if (msg.subj) {
 160                                 outmsg +=
 161                                 "<br><span class=\"ctdl-msgsubject\">" + msg.subj + "</span>";
 162                         }
 163
 164                         outmsg +=
 165                           "</div>";                                             // end header
 166                 }
 167
 168                 outmsg +=
 169                   "<div class=\"ctdl-msg-body\" id=\"" + div + "_body\">"       // begin body
 170                 + msg.text
 171                 + "</div>"                                                      // end body
 172                 + "</div>"                                                      // end content
 173                 + "</div>"                                                      // end wrapper
 174                 ;
 175         }
 176         catch(err) {
 177                 outmsg = "<div class=\"ctdl-mmsg-wrapper\">" + err.message + "</div>";
 178         }
 179
 180         target_div.innerHTML = outmsg;
 181 }
 182
 183
 184 // display an individual message (note: this wants an actual div object, not a string containing the name of a div)
 185 function mail_display_message(msgnum, target_div, include_controls) {
 186         url = "/ctdl/r/" + escapeHTMLURI(current_room) + "/" + msgnum + "/json";
 187         mail_fetch_msg = async() => {
 188                 response = await fetch(url);
 189                 msg = await(response.json());
 190                 if (response.ok) {
 191                         mail_render_one(msgnum, msg, target_div, include_controls);
 192                 }
 193         }
 194         mail_fetch_msg();
 195 }
 196
 197
 198 // A message has been selected...
 199 function click_message(event, msgnum) {
 200         var table = document.getElementById("ctdl-onscreen-mailbox");
 201         var i, m, row;
 202
 203         // ctrl + click = toggle an individual message without changing existing selection
 204         if (event.ctrlKey) {
 205                 document.getElementById("ctdl-msgsum-" + msgnum).classList.toggle("ctdl-mail-selected");
 206         }
 207
 208         // shift + click = select a range of messages
 209         else if (event.shiftKey) {
 210                 for (i=0; row=table.rows[i]; ++i) {
 211                         m = parseInt(row["id"].substring(12));                          // derive msgnum from row id
 212                         if (
 213                                 ((msgnum >= displayed_message) && (m >= displayed_message) && (m <= msgnum))
 214                                 || ((msgnum <= displayed_message) && (m <= displayed_message) && (m >= msgnum))
 215                         ) {
 216                                 row.classList.add("ctdl-mail-selected");
 217                         }
 218                         else {
 219                                 row.classList.remove("ctdl-mail-selected");
 220                         }
 221                 }
 222         }
 223
 224         // click + no modifiers = select one message and unselect all others
 225         else {
 226                 for (i=0; row=table.rows[i]; ++i) {
 227                         if (row["id"] == "ctdl-msgsum-" + msgnum) {
 228                                 row.classList.add("ctdl-mail-selected");
 229                         }
 230                         else {
 231                                 row.classList.remove("ctdl-mail-selected");
 232                         }
 233                 }
 234         }
 235
 236         // display the message if it isn't already displayed
 237         if (displayed_message != msgnum) {
 238                 displayed_message = msgnum;
 239                 mail_display_message(msgnum, document.getElementById("ctdl-mailbox-reading-pane"), 1);
 240         }
 241 }
 242
 243
 244 // render one row in the mailbox table (this could be called from one of several places)
 245 function mail_render_row(msg, is_selected) {
 246         row     = "<tr "
 247                 + "id=\"ctdl-msgsum-" + msg["msgnum"] + "\" "
 248                 + (is_selected ? "class=\"ctdl-mail-selected\" " : "")
 249                 + "onClick=\"click_message(event," + msg["msgnum"] + ");\""
 250                 + "onselectstart=\"return false;\""
 251                 + ">"
 252                 + "<td class=\"ctdl-mail-subject\">" + msg["subject"] + "</td>"
 253                 + "<td class=\"ctdl-mail-sender\">" + msg["author"] + "</td>"
 254                 + "<td class=\"ctdl-mail-date\">" + string_timestamp(msg["time"],1) + "</td>"
 255                 + "<td class=\"ctdl-mail-msgnum\">" + msg["msgnum"] + "</td>"
 256                 + "</tr>";
 257         return(row);
 258 }
 259
 260
 261 // RENDERER FOR THIS VIEW
 262 function view_render_mail() {
 263         // Put the "enter new message" button into the topbar
 264         document.getElementById("ctdl-newmsg-button").innerHTML = "<i class=\"fa fa-edit\"></i>" + _("Write mail");
 265         document.getElementById("ctdl-newmsg-button").style.display = "block";
 266
 267         // Put the "delete message(s)" button into the topbar
 268         let d = document.getElementById("ctdl-delete-button");
 269         d.innerHTML = "<i class=\"fa fa-trash\"></i>" + _("Delete");
 270         d.style.display = "block";
 271         //d.addEventListener("click", mail_delete_selected);
 272
 273         document.getElementById("ctdl-main").innerHTML
 274                 = "<div id=\"ctdl-mailbox-grid-container\" class=\"ctdl-mailbox-grid-container\">"
 275                 + "<div id=\"ctdl-mailbox-pane\" class=\"ctdl-mailbox-pane\"></div>"
 276                 + "<div id=\"ctdl-mailbox-reading-pane\" class=\"ctdl-mailbox-reading-pane\"></div>"
 277                 + "</div>"
 278         ;
 279
 280         highest_mailnum = 0;                                    // Keep track of highest message number to track newly arrived messages
 281         render_mailbox_display(newmail_notify.NO);
 282         try {                                                   // if this was already set up, clear it so there aren't multiple
 283                 clearInterval(RefreshMailboxInterval);
 284         }
 285         catch {
 286         }
 287         RefreshMailboxInterval = setInterval(refresh_mail_display, 10000);
 288 }
 289
 290
 291 // Refresh the mailbox, either for the first time or whenever needed
 292 function refresh_mail_display() {
 293         // If the "ctdl-mailbox-pane" no longer exists, the user has navigated to a different part of the site,
 294         // so cancel the refresh.
 295         try {
 296                 document.getElementById("ctdl-mailbox-pane").innerHTML;
 297         }
 298         catch {
 299                 clearInterval(RefreshMailboxInterval);
 300                 return;
 301         }
 302
 303         // Ask the server if the room has been written to since our last look at it.
 304         url = "/ctdl/r/" + escapeHTMLURI(current_room) + "/stat";
 305         fetch_stat = async() => {
 306                 response = await fetch(url);
 307                 stat = await(response.json());
 308                 if (stat.room_mtime > room_mtime) {                     // FIXME commented out to force refreshes
 309                         room_mtime = stat.room_mtime;
 310                         render_mailbox_display(newmail_notify.YES);
 311                 }
 312         }
 313         fetch_stat();
 314 }
 315
 316
 317 // This is where the rendering of the message list in the mailbox view is performed.
 318 // Set notify to newmail_notify.NO or newmail_notify.YES depending on whether we are interested in the arrival of new messages.
 319 function render_mailbox_display(notify) {
 320
 321         url = "/ctdl/r/" + escapeHTMLURI(current_room) + "/mailbox";
 322         fetch_mailbox = async() => {
 323                 response = await fetch(url);
 324                 msgs = await(response.json());
 325                 if (response.ok) {
 326                         var previously_selected = [];
 327                         var oldtable = document.getElementById("ctdl-onscreen-mailbox");
 328                         var i, row;
 329
 330                         // If one or more messages was already selected, remember them so we can re-select them
 331                         if ( (displayed_message > 0) && (oldtable) ) {
 332                                 for (i=0; row=oldtable.rows[i]; ++i) {
 333                                         if (row.classList.contains("ctdl-mail-selected")) {
 334                                                 previously_selected.push(parseInt(row["id"].substring(12)));
 335                                         }
 336                                 }
 337                         }
 338
 339                         // begin rendering the mailbox table
 340                         box =   "<table id=\"ctdl-onscreen-mailbox\" class=\"ctdl-mailbox-table\" width=100%><tr>"
 341                                 + "<th>" + _("Subject") + "</th>"
 342                                 + "<th>" + _("Sender") + "</th>"
 343                                 + "<th>" + _("Date") + "</th>"
 344                                 + "<th>#</th>"
 345                                 + "</tr>";
 346
 347                         for (let i=0; i<msgs.length; ++i) {
 348                                 let m = parseInt(msgs[i].msgnum);
 349                                 let s = (previously_selected.includes(m));
 350                                 box += mail_render_row(msgs[i], s);
 351                                 if (m > highest_mailnum) {
 352                                         highest_mailnum = m;
 353                                 }
 354                         }
 355
 356                         box +=  "</table>";
 357                         document.getElementById("ctdl-mailbox-pane").innerHTML = box;
 358                         document.addEventListener("keydown", mail_keypress);
 359                 }
 360         }
 361         fetch_mailbox();
 362 }
 363
 364
 365 // Compose a new mail message (called by the Reply button here, or by the dispatcher in views.js)
 366 function mail_compose(is_quoted, references, quoted_msgnum, m_to, m_cc, m_subject) {
 367         // m_to will be an array of zero or more recipients for the To: field.  Convert it to a string.
 368         if (m_to) {
 369                 m_to = Array.from(new Set(m_to));       // remove dupes
 370                 m_to_str = "";
 371                 for (i=0; i<m_to.length; ++i) {
 372                         if (i > 0) {
 373                                 m_to_str += ", ";
 374                         }
 375                         m_to_str += m_to[i].replaceAll("<", "&lt;").replaceAll(">", "&gt;");
 376                 }
 377         }
 378         else {
 379                 m_to_str = "";
 380         }
 381
 382         // m_to will be an array of zero or more recipients for the Cc: field.  Convert it to a string.
 383         if (m_cc) {
 384                 m_cc = Array.from(new Set(m_cc));       // remove dupes
 385                 m_cc_str = "";
 386                 for (i=0; i<m_cc.length; ++i) {
 387                         if (i > 0) {
 388                                 m_cc_str += ", ";
 389                         }
 390                         m_cc_str += m_cc[i].replaceAll("<", "&lt;").replaceAll(">", "&gt;");
 391                 }
 392         }
 393         else {
 394                 m_cc_str = "";
 395         }
 396
 397         quoted_div_name = randomString();
 398
 399         // Make the "Write mail" button disappear.  We're already there!
 400         document.getElementById("ctdl-newmsg-button").style.display = "none";
 401
 402         // is_quoted    true or false depending on whether the user selected "reply quoted" (is this appropriate for mail?)
 403         // references   list of references, be sure to use this in a reply
 404         // msgid        if a reply, the msgid of the most recent message in the chain, the one to which we are replying
 405
 406         // Now display the screen.
 407         compose_screen =
 408                 // Hidden values that we are storing right here in the document tree for later
 409                   "<input id=\"ctdl_mc_is_quoted\" style=\"display:none\" value=\"" + is_quoted + "\"></input>"
 410                 + "<input id=\"ctdl_mc_references\" style=\"display:none\" value=\"" + references + "\"></input>"
 411
 412                 // Header fields, the composition window, and the button bar are arranged using a Grid layout.
 413                 + "<div id=\"ctdl-compose-mail\" class=\"ctdl-compose-mail\">"
 414
 415                 // Visible To: field, plus a box to make the CC/BCC lines appear
 416                 + "<div class=\"ctdl-compose-to-label\">" + _("To:") + "</div>"
 417                 + "<div class=\"ctdl-compose-to-line\">"
 418                 + "<div class=\"ctdl-compose-to-field\" id=\"ctdl-compose-to-field\" contenteditable=\"true\">" + m_to_str + "</div>"
 419                 + "<div class=\"ctdl-cc-bcc-buttons ctdl-msg-button\" id=\"ctdl-cc-bcc-buttons\" "
 420                 + "onClick=\"make_cc_bcc_visible()\">"
 421                 + _("CC:") + "/" + _("BCC:") + "</div>"
 422                 + "</div>"
 423
 424                 // CC/BCC
 425                 + "<div class=\"ctdl-compose-cc-label\" id=\"ctdl-compose-cc-label\">" + _("CC:") + "</div>"
 426                 + "<div class=\"ctdl-compose-cc-field\" id=\"ctdl-compose-cc-field\" contenteditable=\"true\">" + m_cc_str + "</div>"
 427                 + "<div class=\"ctdl-compose-bcc-label\" id=\"ctdl-compose-bcc-label\">" + _("BCC:") + "</div>"
 428                 + "<div class=\"ctdl-compose-bcc-field\" id=\"ctdl-compose-bcc-field\" contenteditable=\"true\"></div>"
 429
 430                 // Visible subject field
 431                 + "<div class=\"ctdl-compose-subject-label\">" + _("Subject:") + "</div>"
 432                 + "<div class=\"ctdl-compose-subject-field\" id=\"ctdl-compose-subject-field\" contenteditable=\"true\">" + m_subject + "</div>"
 433
 434                 // Message composition box
 435                 + "<div class=\"ctdl-compose-message-box\" id=\"ctdl-editor-body\" contenteditable=\"true\">"
 436         ;
 437
 438         if (is_quoted) {
 439                 compose_screen += "<br><br><blockquote><div id=\"" + quoted_div_name + "\"></div></blockquote>";
 440         }
 441
 442         compose_screen +=
 443                   "</div>"
 444
 445                 // The button bar is a Grid element, and is also a Flexbox container.
 446                 + "<div class=\"ctdl-compose-toolbar\">"
 447                 + "<span class=\"ctdl-msg-button\" onclick=\"mail_send_message()\"><i class=\"fa fa-paper-plane\" style=\"color:green\"></i> " + _("Send message") + "</span>"
 448                 + "<span class=\"ctdl-msg-button\">" + _("Save to Drafts") + "</span>"
 449                 + "<span class=\"ctdl-msg-button\">" + _("Attachments:") + " 0" + "</span>"
 450                 + "<span class=\"ctdl-msg-button\">" + _("Contacts") + "</span>"
 451                 + "<span class=\"ctdl-msg-button\" onClick=\"gotoroom(current_room)\"><i class=\"fa fa-trash\" style=\"color:red\"></i> " + _("Cancel") + "</span>"
 452                 + "</div>"
 453         ;
 454
 455         document.getElementById("ctdl-main").innerHTML = compose_screen;
 456         mail_display_message(quoted_msgnum, document.getElementById(quoted_div_name), 0);
 457         if (m_cc) {
 458                 document.getElementById("ctdl-compose-cc-label").style.display = "block";
 459                 document.getElementById("ctdl-compose-cc-field").style.display = "block";
 460         }
 461 }
 462
 463
 464 // Called when the user clicks the button to make the hidden "CC" and "BCC" lines appear.
 465 // It is also called automatically during a Reply when CC is pre-populated.
 466 function make_cc_bcc_visible() {
 467         document.getElementById("ctdl-cc-bcc-buttons").style.display = "none";
 468         document.getElementById("ctdl-compose-bcc-label").style.display = "block";
 469         document.getElementById("ctdl-compose-bcc-field").style.display = "block";
 470 }
 471
 472
 473 // Helper function for mail_send_messages() to extract and decode metadata values.
 474 function msm_field(element_name, separator) {
 475         let s1 = document.getElementById(element_name).innerHTML;
 476         let s2 = s1.replaceAll("|",separator);          // Replace "|" with "!" because "|" is a field separator in Citadel wire protocol
 477         let s3 = decodeURI(s2);
 478         let s4 = document.createElement("textarea");    // This One Weird Trick Unescapes All HTML Entities
 479         s4.innerHTML = s3;
 480         let s5 = s4.value;
 481         return(s5);
 482 }
 483
 484
 485 // Save the posted message to the server
 486 function mail_send_message() {
 487
 488         document.body.style.cursor = "wait";
 489         let url = "/ctdl/r/" + escapeHTMLURI(current_room)
 490                 + "/dummy_name_for_new_mail"
 491                 + "?wefw="      + msm_field("ctdl_mc_references", "!")                          // references (if present)
 492                 + "&subj="      + msm_field("ctdl-compose-subject-field", " ")                  // subject (if present)
 493                 + "&mailto="    + msm_field("ctdl-compose-to-field", ",")                       // To: (required)
 494                 + "&mailcc="    + msm_field("ctdl-compose-cc-field", ",")                       // Cc: (if present)
 495                 + "&mailbcc="   + msm_field("ctdl-compose-bcc-field", ",")                      // Bcc: (if present)
 496         ;
 497         boundary = randomString();
 498         body_text =
 499                 "--" + boundary + "\r\n"
 500                 + "Content-type: text/html\r\n"
 501                 + "Content-transfer-encoding: quoted-printable\r\n"
 502                 + "\r\n"
 503                 + quoted_printable_encode(
 504                         "<html><body>" + document.getElementById("ctdl-editor-body").innerHTML + "</body></html>"
 505                 ) + "\r\n"
 506                 + "--" + boundary + "--\r\n"
 507         ;
 508
 509         var request = new XMLHttpRequest();
 510         request.open("PUT", url, true);
 511         request.setRequestHeader("Content-type", "multipart/mixed; boundary=\"" + boundary + "\"");
 512         request.onreadystatechange = function() {
 513                 if (request.readyState == 4) {
 514                         document.body.style.cursor = "default";
 515                         if (Math.trunc(request.status / 100) == 2) {
 516                                 headers = request.getAllResponseHeaders().split("\n");
 517                                 for (var i in headers) {
 518                                         if (headers[i].startsWith("etag: ")) {
 519                                                 new_msg_num = headers[i].split(" ")[1];
 520                                         }
 521                                 }
 522
 523                                 // After saving the message, go back to the mailbox view.
 524                                 gotoroom(current_room);
 525
 526                         }
 527                         else {
 528                                 error_message = request.responseText;
 529                                 if (error_message.length == 0) {
 530                                         error_message = _("An error has occurred.");
 531                                 }
 532                                 alert(error_message);                                           // editor remains open
 533                         }
 534                 }
 535         };
 536         request.send(body_text);
 537 }