1 // Copyright (c) 2016-2022 by the citadel.org team
3 // This program is open source software. It runs great on the
4 // Linux operating system (and probably elsewhere). You can use,
5 // copy, and run it under the terms of the GNU General Public
6 // License version 3. Richard Stallman is an asshole communist.
8 // This program is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 // GNU General Public License for more details.
15 function forum_readmessages(target_div_name, gt_msg, lt_msg) {
16 target_div = document.getElementById(target_div_name);
17 original_text = target_div.innerHTML; // in case we need to replace it after an error
18 target_div.innerHTML = ""
20 if (lt_msg < 9999999999) {
21 url = "/ctdl/r/" + escapeHTMLURI(current_room) + "/msgs.lt|" + lt_msg;
24 url = "/ctdl/r/" + escapeHTMLURI(current_room) + "/msgs.gt|" + gt_msg;
27 fetch_msg_list = async() => {
28 response = await fetch(url);
29 msgs = await(response.json());
31 target_div.innerHTML = "" ;
33 // If we were given an explicit starting point, by all means start there.
34 // Note that we don't have to remove them from the array because we did a 'msgs gt|xxx' command to Citadel.
36 msgs = msgs.slice(0, messages_per_page);
39 // Otherwise, show us the last 20 messages
41 if (msgs.length > messages_per_page) {
42 msgs = msgs.slice(msgs.length - messages_per_page);
44 new_old_div_name = randomString();
45 if (msgs.length < 1) {
51 target_div.innerHTML +=
52 "<div id=\"" + new_old_div_name + "\">" +
53 "<div class=\"ctdl-forum-nav\">" +
54 "<a href=\"javascript:forum_readmessages('" + new_old_div_name + "', 0, " + newlt + ");\">" +
55 "<i class=\"fa fa-arrow-circle-up\"></i> " +
56 _("Older posts") + " <i class=\"fa fa-arrow-circle-up\"></a></div></div></a></div></div>" ;
59 // The messages will go here.
60 let msgs_div_name = randomString();
61 target_div.innerHTML += "<div id=\"" + msgs_div_name + "\"> </div>" ;
63 if (lt_msg == 9999999999) {
64 new_new_div_name = randomString();
65 if (msgs.length <= 0) {
69 newgt = msgs[msgs.length-1];
71 target_div.innerHTML +=
72 "<div id=\"" + new_new_div_name + "\">" +
73 "<div id=\"ctdl-newmsg-here\"></div>" +
74 "<div class=\"ctdl-forum-nav\">" +
75 "<a href=\"javascript:forum_readmessages('" + new_new_div_name + "', " + newgt + ", 9999999999);\">" +
76 "<i class=\"fa fa-arrow-circle-down\"></i> " +
77 _("Newer posts") + " <i class=\"fa fa-arrow-circle-down\"></a></div></div>" ;
80 // Now figure out where to scroll to after rendering.
84 else if (lt_msg < 9999999999) {
85 scroll_to = msgs[msgs.length-1];
87 else if ( (logged_in) && (gt_msg == 0) && (lt_msg == 9999999999) ) {
88 scroll_to = msgs[msgs.length-1];
91 scroll_to = msgs[0]; // FIXME this is too naive
94 // Render the individual messages in the divs
95 forum_render_messages(msgs, msgs_div_name, scroll_to)
98 // if xhr fails, this will make the link reappear so the user can try again
99 target_div.innerHTML = original_text;
104 // make the nav buttons appear (post a new message, skip this room, goto next room)
106 document.getElementById("ctdl-newmsg-button").innerHTML = "<i class=\"fa fa-edit\"></i>" + _("Post message");
107 document.getElementById("ctdl-newmsg-button").style.display = "block";
109 document.getElementById("ctdl-skip-button").innerHTML = "<i class=\"fa fa-arrow-alt-circle-right\"></i>" + _("Skip this room");
110 document.getElementById("ctdl-skip-button").style.display = "block";
112 document.getElementById("ctdl-goto-button").innerHTML = "<i class=\"fa fa-arrow-circle-right\"></i>" + _("Goto next room");
113 document.getElementById("ctdl-goto-button").style.display = "block";
117 // Render a range of messages into the specified target div
118 function forum_render_messages(message_numbers, msgs_div_name, scroll_to) {
120 // Build an array of Promises and then wait for them all to resolve.
121 let num_msgs = message_numbers.length;
122 let msg_promises = Array.apply(null, Array(num_msgs));
123 for (i=0; i<num_msgs; ++i) {
124 msg_promises[i] = fetch("/ctdl/r/" + escapeHTMLURI(current_room) + "/" + message_numbers[i] + "/json")
125 .then(response => response.json())
128 console.error('Error: ', error);
133 // Here is the async function that waits for all the messages to be loaded, and then renders them.
134 fetch_msg_list = async() => {
135 document.body.style.cursor = "wait";
136 activate_loading_modal();
137 await Promise.all(msg_promises);
138 deactivate_loading_modal();
139 document.body.style.cursor = "default";
141 // At this point all of the Promises are resolved and we can render.
142 // Note: "let" keeps "i" in scope even through the .then scope
143 let scroll_to_div = null;
144 for (let i=0; i<num_msgs; ++i) {
145 msg_promises[i].then((one_message) => {
146 let new_msg_div = forum_render_one(one_message, null);
147 document.getElementById(msgs_div_name).append(new_msg_div);
148 if (message_numbers[i] == scroll_to) {
149 scroll_to_div = new_msg_div;
151 if (i == num_msgs - 1) {
152 scroll_to_div.scrollIntoView({behavior: "smooth", block: "start", inline: "nearest"});
160 // Make a note of the highest message number we saw, so we can mark it when we "Goto next room"
161 // (Compared to the text client, this is actually more like <A>bandon than <G>oto)
162 if ((num_msgs > 0) && (message_numbers[num_msgs-1] > last_seen)) {
163 last_seen = message_numbers[num_msgs-1];
168 // Render a message. Returns a div object.
169 function forum_render_one(msg, existing_div) {
171 if (existing_div != null) { // If an existing div was supplied, render into it
174 else { // Otherwise, create a new one
175 div = document.createElement("div");
178 mdiv = randomString(); // Give the div a new name
183 "<div class=\"ctdl-msg-wrapper\">" // begin message wrapper
184 + "<div class=\"ctdl-avatar\" onClick=\"javascript:user_profile('" + msg.from + "');\">"
185 + "<img src=\"/ctdl/u/" + msg.from + "/userpic\" width=\"32\" "
186 + "onerror=\"this.parentNode.innerHTML='<i class="fa fa-user-circle fa-2x"></i> '\">"
187 + "</div>" // end avatar
188 + "<div class=\"ctdl-msg-content\">" // begin content
189 + "<div class=\"ctdl-msg-header\">" // begin header
190 + "<span class=\"ctdl-msg-header-info\">" // begin header info on left side
191 + "<span class=\"ctdl-username\" onClick=\"javascript:user_profile('" + msg.from + "');\">"
193 + "</a></span>" // end username
194 + "<span class=\"ctdl-msgdate\">"
195 + convertTimestamp(msg.time)
196 + "</span>" // end msgdate
197 + "</span>" // end header info on left side
198 + "<span class=\"ctdl-msg-header-buttons\">" // begin buttons on right side
200 + "<span class=\"ctdl-msg-button\">" // Reply
201 + "<a href=\"javascript:open_reply_box('"+mdiv+"',false,'"+msg.wefw+"','"+msg.msgn+"');\">"
202 + "<i class=\"fa fa-reply\"></i> "
206 + "<span class=\"ctdl-msg-button\">" // ReplyQuoted
207 + "<a href=\"javascript:open_reply_box('"+mdiv+"',true,'"+msg.wefw+"','"+msg.msgn+"');\">"
208 + "<i class=\"fa fa-comment\"></i> "
212 + "<span class=\"ctdl-msg-button\"><a href=\"#\">" // Delete , show only with permission FIXME
213 + "<i class=\"fa fa-trash\"></i> "
217 + "</span>"; // end buttons on right side
220 "<br><span class=\"ctdl-msgsubject\">" + msg.subj + "</span>";
223 "</div><br>" // end header
224 + "<div class=\"ctdl-msg-body\" id=\"" + mdiv + "_body\">" // begin body
226 + "</div>" // end body
227 + "</div>" // end content
228 + "</div>" // end wrapper
232 outmsg = "<div class=\"ctdl-msg-wrapper\">" + err.message + "</div>";
235 div.innerHTML = outmsg;
240 // Compose a references string using existing references plus the message being replied to
241 function compose_references(references, msgid) {
242 if (references.includes("@")) {
243 refs = references + "|";
250 // If the resulting string is too big, we can trim it here
251 while (refs.length > 900) {
253 r.splice(1,1); // remove the second element so we keep the root
260 // Open a reply box directly below a specific message
261 function open_reply_box(parent_div, is_quoted, references, msgid) {
262 let new_div = document.createElement("div");
263 let new_div_name = randomString();
264 new_div.id = new_div_name;
266 document.getElementById(parent_div).append(new_div);
269 "<div class=\"ctdl-msg-wrapper ctdl-msg-reply\">" // begin message wrapper
270 + "<div class=\"ctdl-avatar\">" // begin avatar
271 + "<img src=\"/ctdl/u/" + current_user + "/userpic\" width=\"32\" "
272 + "onerror=\"this.parentNode.innerHTML='<i class="fa fa-user-circle fa-2x"></i> '\">"
273 + "</div>" // end avatar
274 + "<div class=\"ctdl-msg-content\">" // begin content
275 + "<div class=\"ctdl-msg-header\">" // begin header
276 + "<span class=\"ctdl-msg-header-info\">" // begin header info on left side
277 + "<span class=\"ctdl-username\">"
278 + current_user // user = me !
280 + "<span class=\"ctdl-msgdate\">"
281 + convertTimestamp(Date.now() / 1000) // the current date/time (temporary for display)
283 + "</span>" // end header info on left side
284 + "<span class=\"ctdl-msg-header-buttons\">" // begin buttons on right side
286 + "<span class=\"ctdl-msg-button\">" // bold button
287 + "<a href=\"javascript:void(0)\" onclick=\"forum_format('bold')\">"
288 + "<i class=\"fa fa-bold fa-fw\"></i>"
291 + "<span class=\"ctdl-msg-button\">" // italic button
292 + "<a href=\"javascript:void(0)\" onclick=\"forum_format('italic')\">"
293 + "<i class=\"fa fa-italic fa-fw\"></i>"
296 + "<span class=\"ctdl-msg-button\">" // list button
297 + "<a href=\"javascript:void(0)\" onclick=\"forum_format('insertunorderedlist')\">"
298 + "<i class=\"fa fa-list fa-fw\"></i>"
301 + "<span class=\"ctdl-msg-button\">" // link button
302 + "<a href=\"javascript:void(0)\" onclick=\"forum_display_urlbox()\">"
303 + "<i class=\"fa fa-link fa-fw\"></i>"
306 + "</span>"; // end buttons on right side
309 //"<br><span id=\"ctdl-subject\" class=\"ctdl-msgsubject\">" + "FIXME subject" + "</span>";
311 //else { // hidden filed for empty subject
312 replybox += "<span id=\"ctdl-subject\" style=\"display:none\"></span>";
315 "</div><br>" // end header
317 + "<span id=\"ctdl-replyreferences\" style=\"display:none\">" // hidden field for references
318 + compose_references(references,msgid) + "</span>"
320 + "<div class=\"ctdl-msg-body\" id=\"ctdl-editor-body\" style=\"padding:5px;\" contenteditable=\"true\">"
321 + "\n"; // empty initial content
324 replybox += "<br><blockquote>"
325 + document.getElementById(parent_div+"_body").innerHTML
332 + "<div class=\"ctdl-msg-header\">" // begin footer
333 + "<span class=\"ctdl-msg-header-info\">" // begin footer info on left side
334 + " " // (nothing here for now)
335 + "</span>" // end footer info on left side
336 + "<span class=\"ctdl-msg-header-buttons\">" // begin buttons on right side
338 + "<span class=\"ctdl-msg-button\"><a href=\"javascript:forum_save_message('" + new_div_name + "');\">"
339 + "<i class=\"fa fa-check\" style=\"color:green\"></i> " // save button
343 + "<span class=\"ctdl-msg-button\"><a href=\"javascript:forum_cancel_post('" + new_div_name + "');\">"
344 + "<i class=\"fa fa-trash\" style=\"color:red\"></i> " // cancel button
348 + "</span>" // end buttons on right side
349 + "</div><br>" // end footer
352 + "</div>" // end content
353 + "</div>" // end wrapper
355 + "<div id=\"forum_url_entry_box\" class=\"w3-modal\">" // begin URL entry modal
356 + " <div class=\"w3-modal-content w3-animate-top w3-card-4\">"
357 + " <header class=\"w3-container w3-blue\"> "
358 + " <p><span>URL:</span></p>"
360 + " <div class=\"w3-container w3-blue\">"
361 + " <input id=\"forum_txtFormatUrl\" placeholder=\"http://\" style=\"width:100%\">"
363 + " <footer class=\"w3-container w3-blue\">"
364 + " <p><span class=\"ctdl-msg-button\"><a href=\"javascript:forum_close_urlbox(true);\">"
365 + " <i class=\"fa fa-check\" style=\"color:green\"></i> "
368 + " <span class=\"ctdl-msg-button\"><a href=\"javascript:forum_close_urlbox(false);\">"
369 + " <i class=\"fa fa-trash\" style=\"color:red\"></i> "
375 + " <input id=\"forum_selection_start\" style=\"display:none\"></input>" // hidden fields
376 + " <input id=\"forum_selection_end\" style=\"display:none\"></input>" // to store selection range
377 + "</div>" // end URL entry modal
380 document.getElementById(new_div_name).innerHTML = replybox;
381 document.getElementById(new_div_name).scrollIntoView({behavior: "smooth", block: "end", inline: "nearest"});
383 // These actions must happen *after* the initial render loop completes.
384 setTimeout(function() {
385 var tag = document.getElementById("ctdl-editor-body");
386 tag.focus(); // sets the focus
387 window.getSelection().collapse(tag.firstChild, 0); // positions the cursor
392 // Abort a message post (it simply destroys the div)
393 function forum_cancel_post(div_name) {
394 document.getElementById(div_name).outerHTML = ""; // make it cease to exist
398 // Save the posted message to the server
399 function forum_save_message(editor_div_name) {
401 document.body.style.cursor = "wait";
402 wefw = (document.getElementById("ctdl-replyreferences").innerHTML).replaceAll("|","!"); // references (if present)
403 subj = document.getElementById("ctdl-subject").innerHTML; // subject (if present)
405 url = "/ctdl/r/" + escapeHTMLURI(current_room)
406 + "/dummy_name_for_new_message"
409 boundary = randomString();
411 "--" + boundary + "\r\n"
412 + "Content-type: text/html\r\n"
413 + "Content-transfer-encoding: quoted-printable\r\n"
415 + quoted_printable_encode(
416 "<html><body>" + document.getElementById("ctdl-editor-body").innerHTML + "</body></html>"
418 + "--" + boundary + "--\r\n"
421 var request = new XMLHttpRequest();
422 request.open("PUT", url, true);
423 request.setRequestHeader("Content-type", "multipart/mixed; boundary=\"" + boundary + "\"");
424 request.onreadystatechange = function() {
425 if (request.readyState == 4) {
426 document.body.style.cursor = "default";
427 if (Math.trunc(request.status / 100) == 2) {
428 headers = request.getAllResponseHeaders().split("\n");
429 for (var i in headers) {
430 if (headers[i].startsWith("etag: ")) {
431 new_msg_num = headers[i].split(" ")[1];
435 // After saving the message, load it back from the server and replace the editor div with it.
436 replace_editor_with_final_message = async() => {
437 response = await fetch("/ctdl/r/" + escapeHTMLURI(current_room) + "/" + new_msg_num + "/json");
439 newly_posted_message = await(response.json());
440 forum_render_one(newly_posted_message, document.getElementById(editor_div_name));
443 replace_editor_with_final_message();
447 error_message = request.responseText;
448 if (error_message.length == 0) {
449 error_message = _("An error has occurred.");
451 alert(error_message); // editor remains open
455 request.send(body_text);
459 // Bold, italics, etc.
460 function forum_format(command, value) {
461 document.execCommand(command, false, value);
465 // Make the URL entry box appear.
466 // When the user clicks into the URL box it will make the previous focus disappear, so we have to save it.
467 function forum_display_urlbox() {
468 document.getElementById("forum_selection_start").value = window.getSelection().anchorOffset;
469 document.getElementById("forum_selection_end").value = window.getSelection().focusOffset;
470 document.getElementById("forum_url_entry_box").style.display = "block";
474 // When the URL box is closed, this gets called. do_save is true for Save, false for Cancel.
475 function forum_close_urlbox(do_save) {
477 var tag = document.getElementById("ctdl-editor-body");
478 var start_replace = document.getElementById("forum_selection_start").value; // use saved selection range
479 var end_replace = document.getElementById("forum_selection_end").value;
480 new_text = tag.innerHTML.substring(0, start_replace)
481 + "<a href=\"" + document.getElementById("forum_txtFormatUrl").value + "\">"
482 + tag.innerHTML.substring(start_replace, end_replace)
484 + tag.innerHTML.substring(end_replace);
485 tag.innerHTML = new_text;
487 document.getElementById("forum_txtFormatUrl").value = ""; // clear url box for next time
488 document.getElementById("forum_url_entry_box").style.display = "none";
492 // User has clicked the "Post message" button. This is roughly the same as "reply" except there is no parent message.
493 function forum_entmsg() {
494 open_reply_box("ctdl-newmsg-here", false, "", "");