2 // Copyright (c) 2016-2021 by the citadel.org team
4 // This program is open source software. It runs great on the
5 // Linux operating system (and probably elsewhere). You can use,
6 // copy, and run it under the terms of the GNU General Public
7 // License version 3. Richard Stallman is an asshole communist.
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
16 function forum_readmessages(target_div, gt_msg, lt_msg) {
17 original_text = document.getElementById(target_div).innerHTML; // in case we need to replace it after an error
18 document.getElementById(target_div).innerHTML =
19 "<div class=\"ctdl-forum-nav\"><i class=\"fas fa-spinner fa-spin\"></i> "
20 + _("Loading messages from server, please wait") + "</div>";
22 if (lt_msg < 9999999999) {
23 url = "/ctdl/r/" + escapeHTMLURI(current_room) + "/msgs.lt|" + lt_msg;
26 url = "/ctdl/r/" + escapeHTMLURI(current_room) + "/msgs.gt|" + gt_msg;
29 fetch_msg_list = async() => {
30 response = await fetch(url);
31 msgs = await(response.json());
33 document.getElementById(target_div).innerHTML = "" ;
35 // If we were given an explicit starting point, by all means start there.
36 // Note that we don't have to remove them from the array because we did a 'msgs gt|xxx' command to Citadel.
38 msgs = msgs.slice(0, messages_per_page);
41 // Otherwise, show us the last 20 messages
43 if (msgs.length > messages_per_page) {
44 msgs = msgs.slice(msgs.length - messages_per_page);
46 new_old_div_name = randomString(5);
47 if (msgs.length < 1) {
53 document.getElementById(target_div).innerHTML +=
54 "<div id=\"" + new_old_div_name + "\">" +
55 "<div class=\"ctdl-forum-nav\">" +
56 "<a href=\"javascript:forum_readmessages('" + new_old_div_name + "', 0, " + newlt + ");\">" +
57 "<i class=\"fa fa-arrow-circle-up\"></i> " +
58 _("Older posts") + " <i class=\"fa fa-arrow-circle-up\"></a></div></div></a></div></div>" ;
61 // Render an empty div for each message. We will fill them in later.
62 //for (var i in msgs) {
63 //document.getElementById(target_div).innerHTML += "<div id=\"ctdl_msg_" + msgs[i] + "\"> </div>" ;
66 // The messages will go here.
67 let msgs_div_name = "ctdl_msgs_" + randomString(5);
68 document.getElementById(target_div).innerHTML += "<div id=\"" + msgs_div_name + "\"> </div>" ;
71 if (lt_msg == 9999999999) {
72 new_new_div_name = randomString(5);
73 if (msgs.length <= 0) {
77 newgt = msgs[msgs.length-1];
79 document.getElementById(target_div).innerHTML +=
80 "<div id=\"" + new_new_div_name + "\">" +
81 "<div class=\"ctdl-forum-nav\">" +
82 "<a href=\"javascript:forum_readmessages('" + new_new_div_name + "', " + newgt + ", 9999999999);\">" +
83 "<i class=\"fa fa-arrow-circle-down\"></i> " +
84 _("Newer posts") + " <i class=\"fa fa-arrow-circle-down\"></a></div></div>" ;
87 // Now figure out where to scroll to after rendering.
91 else if (lt_msg < 9999999999) {
92 scroll_to = msgs[msgs.length-1];
94 else if ( (logged_in) && (gt_msg == 0) && (lt_msg == 9999999999) ) {
95 scroll_to = msgs[msgs.length-1];
98 scroll_to = msgs[0]; // FIXME this is too naive
101 // Render the individual messages in the divs
102 forum_render_messages(msgs, msgs_div_name, scroll_to)
105 // if xhr fails, this will make the link reappear so the user can try again
106 document.getElementById(target_div).innerHTML = original_text;
113 // Render a range of messages into the specified prefix
114 function forum_render_messages(message_numbers, msgs_div_name, scroll_to) {
116 // Build an array of Promises and then wait for them all to resolve.
117 let num_msgs = message_numbers.length;
118 let msg_promises = Array.apply(null, Array(num_msgs));
119 for (i=0; i<num_msgs; ++i) {
120 msg_promises[i] = fetch("/ctdl/r/" + escapeHTMLURI(current_room) + "/" + message_numbers[i] + "/json")
121 .then(response => response.json())
124 console.error('Error: ', error);
129 // Here is the async function that waits for all the messages to be loaded, and then renders them.
130 fetch_msg_list = async() => {
131 document.body.style.cursor = "wait";
132 await Promise.all(msg_promises);
133 document.body.style.cursor = "default";
135 // At this point all of the Promises are resolved and we can render.
136 // Note: "let" keeps "i" in scope even through the .then scope
137 for (let i=0; i<num_msgs; ++i) {
138 msg_promises[i].then((one_message) => {
139 document.getElementById(msgs_div_name).append(forum_render_one(one_message));
141 //if (msgnum == scroll_to) {
142 //document.getElementById(prefix+msgnum).scrollIntoView({behavior: "smooth", block: "start", inline: "nearest"});
151 // Render a message. Returns a div object.
152 function forum_render_one(msg) {
154 let div = document.createElement("div");
155 mdiv = randomString(10); // div name for this message
160 "<div class=\"ctdl-msg-wrapper\">" // begin message wrapper
161 + "<div class=\"ctdl-avatar\">" // begin avatar
162 + "<img src=\"/ctdl/u/" + msg.from + "/userpic\" width=\"32\" "
163 + "onerror=\"this.parentNode.innerHTML='<i class="fa fa-user-circle fa-2x"></i> '\">"
164 + "</div>" // end avatar
165 + "<div class=\"ctdl-msg-content\">" // begin content
166 + "<div class=\"ctdl-msg-header\">" // begin header
167 + "<span class=\"ctdl-msg-header-info\">" // begin header info on left side
168 + "<span class=\"ctdl-username\"><a href=\"#\">" // FIXME link to user profile
170 + "</a></span>" // end username
171 + "<span class=\"ctdl-msgdate\">"
173 + "</span>" // end msgdate
174 + "</span>" // end header info on left side
175 + "<span class=\"ctdl-msg-header-buttons\">" // begin buttons on right side
177 + "<span class=\"ctdl-msg-button\">" // Reply
178 + "<a href=\"javascript:open_reply_box('"+mdiv+"',false,'"+msg.wefw+"','"+msg.msgn+"');\">"
179 + "<i class=\"fa fa-reply\"></i> "
183 + "<span class=\"ctdl-msg-button\">" // ReplyQuoted
184 + "<a href=\"javascript:open_reply_box('"+mdiv+"',true,'"+msg.wefw+"','"+msg.msgn+"');\">"
185 + "<i class=\"fa fa-comment\"></i> "
189 + "<span class=\"ctdl-msg-button\"><a href=\"#\">" // Delete , show only with permission FIXME
190 + "<i class=\"fa fa-trash\"></i> "
194 + "</span>"; // end buttons on right side
197 "<br><span class=\"ctdl-msgsubject\">" + msg.subj + "</span>";
200 "</div><br>" // end header
201 + "<div class=\"ctdl-msg-body\">" // begin body
203 + "</div>" // end body
204 + "</div>" // end content
205 + "</div>" // end wrapper
209 outmsg = "<div class=\"ctdl-msg-wrapper\">" + err.message + "</div>";
212 div.innerHTML = outmsg;
217 // Compose a references string using existing references plus the message being replied to
218 function compose_references(references, msgid) {
219 if (references.includes("@")) {
220 refs = references + "|";
227 // If the resulting string is too big, we can trim it here
228 while (refs.length > 900) {
230 r.splice(1,1); // remove the second element so we keep the root
237 // Open a reply box directly below a specific message
238 function open_reply_box(parent_div, is_quoted, references, msgid) {
239 let new_div = document.createElement("div");
240 let new_div_name = randomString(10);
241 new_div.id = new_div_name;
243 document.getElementById(parent_div).append(new_div);
246 "<div class=\"ctdl-msg-wrapper ctdl-msg-reply\">" // begin message wrapper
247 + "<div class=\"ctdl-avatar\">" // begin avatar
248 + "<img src=\"/ctdl/u/" + "FIXME my name" + "/userpic\" width=\"32\" "
249 + "onerror=\"this.parentNode.innerHTML='<i class="fa fa-user-circle fa-2x"></i> '\">"
250 + "</div>" // end avatar
251 + "<div class=\"ctdl-msg-content\">" // begin content
252 + "<div class=\"ctdl-msg-header\">" // begin header
253 + "<span class=\"ctdl-msg-header-info\">" // begin header info on left side
254 + "<span class=\"ctdl-username\"><a href=\"#\">" // FIXME link to user profile
256 + "</a></span>" // end username
257 + "<span class=\"ctdl-msgdate\">"
259 + "</span>" // end msgdate
260 + "</span>" // end header info on left side
261 + "<span class=\"ctdl-msg-header-buttons\">" // begin buttons on right side
263 + "<span class=\"ctdl-msg-button\">" // bold button
264 + "<a href=\"javascript:void(0)\" onclick=\"forum_format('bold')\">"
265 + "<i class=\"fa fa-bold fa-fw\"></i>"
268 + "<span class=\"ctdl-msg-button\">" // italic button
269 + "<a href=\"javascript:void(0)\" onclick=\"forum_format('italic')\">"
270 + "<i class=\"fa fa-italic fa-fw\"></i>"
273 + "<span class=\"ctdl-msg-button\">" // list button
274 + "<a href=\"javascript:void(0)\" onclick=\"forum_format('insertunorderedlist')\">"
275 + "<i class=\"fa fa-list fa-fw\"></i>"
278 + "<span class=\"ctdl-msg-button\">" // link button
279 + "<a href=\"javascript:void(0)\" onclick=\"forum_display_urlbox()\">"
280 + "<i class=\"fa fa-link fa-fw\"></i>"
283 + "</span>"; // end buttons on right side
286 //"<br><span id=\"ctdl-subject\" class=\"ctdl-msgsubject\">" + "FIXME subject" + "</span>";
288 //else { // hidden filed for empty subject
289 replybox += "<span id=\"ctdl-subject\" style=\"display:none\"></span>";
292 "</div><br>" // end header
294 + "<span id=\"ctdl-replyreferences\" style=\"display:none\">" // hidden field for references
295 + compose_references(references,msgid) + "</span>"
297 + "<div class=\"ctdl-msg-body\" id=\"ctdl-editor-body\" style=\"padding:5px;\" contenteditable=\"true\">"
298 + "\n" // empty initial content
299 + "</div>" // end body
301 + "<div class=\"ctdl-msg-header\">" // begin footer
302 + "<span class=\"ctdl-msg-header-info\">" // begin footer info on left side
304 + "</span>" // end footer info on left side
305 + "<span class=\"ctdl-msg-header-buttons\">" // begin buttons on right side
307 + "<span class=\"ctdl-msg-button\"><a href=\"javascript:forum_save_message('" + new_div_name + "');\">"
308 + "<i class=\"fa fa-check\" style=\"color:green\"></i> " // save button
312 + "<span class=\"ctdl-msg-button\"><a href=\"javascript:forum_cancel_post('" + new_div_name + "');\">"
313 + "<i class=\"fa fa-trash\" style=\"color:red\"></i> " // cancel button
317 + "</span>" // end buttons on right side
318 + "</div><br>" // end footer
321 + "</div>" // end content
322 + "</div>" // end wrapper
324 + "<div id=\"forum_url_entry_box\" class=\"w3-modal\">" // begin URL entry modal
325 + " <div class=\"w3-modal-content w3-animate-top w3-card-4\">"
326 + " <header class=\"w3-container w3-blue\"> "
327 + " <p><span>URL:</span></p>"
329 + " <div class=\"w3-container w3-blue\">"
330 + " <input id=\"forum_txtFormatUrl\" placeholder=\"http://\" style=\"width:100%\">"
332 + " <footer class=\"w3-container w3-blue\">"
333 + " <p><span class=\"ctdl-msg-button\"><a href=\"javascript:forum_close_urlbox(true);\">"
334 + " <i class=\"fa fa-check\" style=\"color:green\"></i> "
337 + " <span class=\"ctdl-msg-button\"><a href=\"javascript:forum_close_urlbox(false);\">"
338 + " <i class=\"fa fa-trash\" style=\"color:red\"></i> "
344 + " <input id=\"forum_selection_start\" style=\"display:none\"></input>" // hidden fields
345 + " <input id=\"forum_selection_end\" style=\"display:none\"></input>" // to store selection range
346 + "</div>" // end URL entry modal
349 document.getElementById(new_div_name).innerHTML = replybox;
350 document.getElementById(new_div_name).scrollIntoView({behavior: "smooth", block: "end", inline: "nearest"});
352 // These actions must happen *after* the initial render loop completes.
353 setTimeout(function() {
354 var tag = document.getElementById("ctdl-editor-body");
355 tag.focus(); // sets the focus
356 window.getSelection().collapse(tag.firstChild, 0); // positions the cursor
361 // Abort a message post (it simply destroys the div)
362 function forum_cancel_post(div_name) {
363 document.getElementById(div_name).outerHTML = ""; // make it cease to exist
367 // Save the posted message to the server
368 function forum_save_message(editor_div_name) {
370 document.body.style.cursor = "wait";
371 wefw = (document.getElementById("ctdl-replyreferences").innerHTML).replaceAll("|","!"); // references (if present)
372 subj = document.getElementById("ctdl-subject").innerHTML; // subject (if present)
374 url = "/ctdl/r/" + escapeHTMLURI(current_room)
375 + "/dummy_name_for_new_message"
378 boundary = randomString(20);
380 "--" + boundary + "\r\n"
381 + "Content-type: text/html\r\n"
382 + "Content-transfer-encoding: quoted-printable\r\n"
384 + quoted_printable_encode(
385 "<html><body>" + document.getElementById("ctdl-editor-body").innerHTML + "</body></html>"
387 + "--" + boundary + "--\r\n"
390 var request = new XMLHttpRequest();
391 request.open("PUT", url, true);
392 request.setRequestHeader("Content-type", "multipart/mixed; boundary=\"" + boundary + "\"");
393 request.onreadystatechange = function() {
394 if (request.readyState == 4) {
395 document.body.style.cursor = "default";
396 if (Math.trunc(request.status / 100) == 2) {
397 headers = request.getAllResponseHeaders().split("\n");
398 for (var i in headers) {
399 if (headers[i].startsWith("etag: ")) {
400 new_msg_num = headers[i].split(" ")[1];
404 // change the name of the editor div to make it look like a regular message...
405 document.getElementById(editor_div_name).innerHTML = "fixme render message " + new_msg_num;
408 error_message = request.responseText;
409 if (error_message.length == 0) {
410 error_message = _("An error has occurred.");
412 alert(error_message); // editor remains open
416 request.send(body_text);
420 // Bold, italics, etc.
421 function forum_format(command, value) {
422 document.execCommand(command, false, value);
426 // Make the URL entry box appear.
427 // When the user clicks into the URL box it will make the previous focus disappear, so we have to save it.
428 function forum_display_urlbox() {
429 document.getElementById("forum_selection_start").value = window.getSelection().anchorOffset;
430 document.getElementById("forum_selection_end").value = window.getSelection().focusOffset;
431 document.getElementById("forum_url_entry_box").style.display = "block";
435 // When the URL box is closed, this gets called. do_save is true for Save, false for Cancel.
436 function forum_close_urlbox(do_save) {
438 var tag = document.getElementById("ctdl-editor-body");
439 var start_replace = document.getElementById("forum_selection_start").value; // use saved selection range
440 var end_replace = document.getElementById("forum_selection_end").value;
441 new_text = tag.innerHTML.substring(0, start_replace)
442 + "<a href=\"" + document.getElementById("forum_txtFormatUrl").value + "\">"
443 + tag.innerHTML.substring(start_replace, end_replace)
445 + tag.innerHTML.substring(end_replace);
446 tag.innerHTML = new_text;
448 document.getElementById("forum_txtFormatUrl").value = ""; // clear url box for next time
449 document.getElementById("forum_url_entry_box").style.display = "none";