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