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 class=\"ctdl-forum-nav\">" +
74 "<a href=\"javascript:forum_readmessages('" + new_new_div_name + "', " + newgt + ", 9999999999);\">" +
75 "<i class=\"fa fa-arrow-circle-down\"></i> " +
76 _("Newer posts") + " <i class=\"fa fa-arrow-circle-down\"></a></div></div>" ;
79 // Now figure out where to scroll to after rendering.
83 else if (lt_msg < 9999999999) {
84 scroll_to = msgs[msgs.length-1];
86 else if ( (logged_in) && (gt_msg == 0) && (lt_msg == 9999999999) ) {
87 scroll_to = msgs[msgs.length-1];
90 scroll_to = msgs[0]; // FIXME this is too naive
93 // Render the individual messages in the divs
94 forum_render_messages(msgs, msgs_div_name, scroll_to)
97 // if xhr fails, this will make the link reappear so the user can try again
98 target_div.innerHTML = original_text;
105 // Render a range of messages into the specified target div
106 function forum_render_messages(message_numbers, msgs_div_name, scroll_to) {
108 // Build an array of Promises and then wait for them all to resolve.
109 let num_msgs = message_numbers.length;
110 let msg_promises = Array.apply(null, Array(num_msgs));
111 for (i=0; i<num_msgs; ++i) {
112 msg_promises[i] = fetch("/ctdl/r/" + escapeHTMLURI(current_room) + "/" + message_numbers[i] + "/json")
113 .then(response => response.json())
116 console.error('Error: ', error);
121 // Here is the async function that waits for all the messages to be loaded, and then renders them.
122 fetch_msg_list = async() => {
123 document.body.style.cursor = "wait";
124 activate_loading_modal();
125 await Promise.all(msg_promises);
126 deactivate_loading_modal();
127 document.body.style.cursor = "default";
129 // At this point all of the Promises are resolved and we can render.
130 // Note: "let" keeps "i" in scope even through the .then scope
131 let scroll_to_div = null;
132 for (let i=0; i<num_msgs; ++i) {
133 msg_promises[i].then((one_message) => {
134 let new_msg_div = forum_render_one(one_message);
135 document.getElementById(msgs_div_name).append(new_msg_div);
136 if (message_numbers[i] == scroll_to) {
137 scroll_to_div = new_msg_div;
139 if (i == num_msgs - 1) {
140 scroll_to_div.scrollIntoView({behavior: "smooth", block: "start", inline: "nearest"});
150 // Render a message. Returns a div object.
151 function forum_render_one(msg) {
153 let div = document.createElement("div");
154 mdiv = randomString(); // div name for this message
159 "<div class=\"ctdl-msg-wrapper\">" // begin message wrapper
160 + "<div class=\"ctdl-avatar\">" // begin avatar
161 + "<img src=\"/ctdl/u/" + msg.from + "/userpic\" width=\"32\" "
162 + "onerror=\"this.parentNode.innerHTML='<i class="fa fa-user-circle fa-2x"></i> '\">"
163 + "</div>" // end avatar
164 + "<div class=\"ctdl-msg-content\">" // begin content
165 + "<div class=\"ctdl-msg-header\">" // begin header
166 + "<span class=\"ctdl-msg-header-info\">" // begin header info on left side
167 + "<span class=\"ctdl-username\"><a href=\"#\">" // FIXME link to user profile
169 + "</a></span>" // end username
170 + "<span class=\"ctdl-msgdate\">"
172 + "</span>" // end msgdate
173 + "</span>" // end header info on left side
174 + "<span class=\"ctdl-msg-header-buttons\">" // begin buttons on right side
176 + "<span class=\"ctdl-msg-button\">" // Reply
177 + "<a href=\"javascript:open_reply_box('"+mdiv+"',false,'"+msg.wefw+"','"+msg.msgn+"');\">"
178 + "<i class=\"fa fa-reply\"></i> "
182 + "<span class=\"ctdl-msg-button\">" // ReplyQuoted
183 + "<a href=\"javascript:open_reply_box('"+mdiv+"',true,'"+msg.wefw+"','"+msg.msgn+"');\">"
184 + "<i class=\"fa fa-comment\"></i> "
188 + "<span class=\"ctdl-msg-button\"><a href=\"#\">" // Delete , show only with permission FIXME
189 + "<i class=\"fa fa-trash\"></i> "
193 + "</span>"; // end buttons on right side
196 "<br><span class=\"ctdl-msgsubject\">" + msg.subj + "</span>";
199 "</div><br>" // end header
200 + "<div class=\"ctdl-msg-body\">" // begin body
202 + "</div>" // end body
203 + "</div>" // end content
204 + "</div>" // end wrapper
208 outmsg = "<div class=\"ctdl-msg-wrapper\">" + err.message + "</div>";
211 div.innerHTML = outmsg;
216 // Compose a references string using existing references plus the message being replied to
217 function compose_references(references, msgid) {
218 if (references.includes("@")) {
219 refs = references + "|";
226 // If the resulting string is too big, we can trim it here
227 while (refs.length > 900) {
229 r.splice(1,1); // remove the second element so we keep the root
236 // Open a reply box directly below a specific message
237 function open_reply_box(parent_div, is_quoted, references, msgid) {
238 let new_div = document.createElement("div");
239 let new_div_name = randomString();
240 new_div.id = new_div_name;
242 document.getElementById(parent_div).append(new_div);
245 "<div class=\"ctdl-msg-wrapper ctdl-msg-reply\">" // begin message wrapper
246 + "<div class=\"ctdl-avatar\">" // begin avatar
247 + "<img src=\"/ctdl/u/" + "FIXME my name" + "/userpic\" width=\"32\" "
248 + "onerror=\"this.parentNode.innerHTML='<i class="fa fa-user-circle fa-2x"></i> '\">"
249 + "</div>" // end avatar
250 + "<div class=\"ctdl-msg-content\">" // begin content
251 + "<div class=\"ctdl-msg-header\">" // begin header
252 + "<span class=\"ctdl-msg-header-info\">" // begin header info on left side
253 + "<span class=\"ctdl-username\"><a href=\"#\">" // FIXME link to user profile
255 + "</a></span>" // end username
256 + "<span class=\"ctdl-msgdate\">"
258 + "</span>" // end msgdate
259 + "</span>" // end header info on left side
260 + "<span class=\"ctdl-msg-header-buttons\">" // begin buttons on right side
262 + "<span class=\"ctdl-msg-button\">" // bold button
263 + "<a href=\"javascript:void(0)\" onclick=\"forum_format('bold')\">"
264 + "<i class=\"fa fa-bold fa-fw\"></i>"
267 + "<span class=\"ctdl-msg-button\">" // italic button
268 + "<a href=\"javascript:void(0)\" onclick=\"forum_format('italic')\">"
269 + "<i class=\"fa fa-italic fa-fw\"></i>"
272 + "<span class=\"ctdl-msg-button\">" // list button
273 + "<a href=\"javascript:void(0)\" onclick=\"forum_format('insertunorderedlist')\">"
274 + "<i class=\"fa fa-list fa-fw\"></i>"
277 + "<span class=\"ctdl-msg-button\">" // link button
278 + "<a href=\"javascript:void(0)\" onclick=\"forum_display_urlbox()\">"
279 + "<i class=\"fa fa-link fa-fw\"></i>"
282 + "</span>"; // end buttons on right side
285 //"<br><span id=\"ctdl-subject\" class=\"ctdl-msgsubject\">" + "FIXME subject" + "</span>";
287 //else { // hidden filed for empty subject
288 replybox += "<span id=\"ctdl-subject\" style=\"display:none\"></span>";
291 "</div><br>" // end header
293 + "<span id=\"ctdl-replyreferences\" style=\"display:none\">" // hidden field for references
294 + compose_references(references,msgid) + "</span>"
296 + "<div class=\"ctdl-msg-body\" id=\"ctdl-editor-body\" style=\"padding:5px;\" contenteditable=\"true\">"
297 + "\n" // empty initial content
298 + "</div>" // end body
300 + "<div class=\"ctdl-msg-header\">" // begin footer
301 + "<span class=\"ctdl-msg-header-info\">" // begin footer info on left side
303 + "</span>" // end footer info on left side
304 + "<span class=\"ctdl-msg-header-buttons\">" // begin buttons on right side
306 + "<span class=\"ctdl-msg-button\"><a href=\"javascript:forum_save_message('" + new_div_name + "');\">"
307 + "<i class=\"fa fa-check\" style=\"color:green\"></i> " // save button
311 + "<span class=\"ctdl-msg-button\"><a href=\"javascript:forum_cancel_post('" + new_div_name + "');\">"
312 + "<i class=\"fa fa-trash\" style=\"color:red\"></i> " // cancel button
316 + "</span>" // end buttons on right side
317 + "</div><br>" // end footer
320 + "</div>" // end content
321 + "</div>" // end wrapper
323 + "<div id=\"forum_url_entry_box\" class=\"w3-modal\">" // begin URL entry modal
324 + " <div class=\"w3-modal-content w3-animate-top w3-card-4\">"
325 + " <header class=\"w3-container w3-blue\"> "
326 + " <p><span>URL:</span></p>"
328 + " <div class=\"w3-container w3-blue\">"
329 + " <input id=\"forum_txtFormatUrl\" placeholder=\"http://\" style=\"width:100%\">"
331 + " <footer class=\"w3-container w3-blue\">"
332 + " <p><span class=\"ctdl-msg-button\"><a href=\"javascript:forum_close_urlbox(true);\">"
333 + " <i class=\"fa fa-check\" style=\"color:green\"></i> "
336 + " <span class=\"ctdl-msg-button\"><a href=\"javascript:forum_close_urlbox(false);\">"
337 + " <i class=\"fa fa-trash\" style=\"color:red\"></i> "
343 + " <input id=\"forum_selection_start\" style=\"display:none\"></input>" // hidden fields
344 + " <input id=\"forum_selection_end\" style=\"display:none\"></input>" // to store selection range
345 + "</div>" // end URL entry modal
348 document.getElementById(new_div_name).innerHTML = replybox;
349 document.getElementById(new_div_name).scrollIntoView({behavior: "smooth", block: "end", inline: "nearest"});
351 // These actions must happen *after* the initial render loop completes.
352 setTimeout(function() {
353 var tag = document.getElementById("ctdl-editor-body");
354 tag.focus(); // sets the focus
355 window.getSelection().collapse(tag.firstChild, 0); // positions the cursor
360 // Abort a message post (it simply destroys the div)
361 function forum_cancel_post(div_name) {
362 document.getElementById(div_name).outerHTML = ""; // make it cease to exist
366 // Save the posted message to the server
367 function forum_save_message(editor_div_name) {
369 document.body.style.cursor = "wait";
370 wefw = (document.getElementById("ctdl-replyreferences").innerHTML).replaceAll("|","!"); // references (if present)
371 subj = document.getElementById("ctdl-subject").innerHTML; // subject (if present)
373 url = "/ctdl/r/" + escapeHTMLURI(current_room)
374 + "/dummy_name_for_new_message"
377 boundary = randomString();
379 "--" + boundary + "\r\n"
380 + "Content-type: text/html\r\n"
381 + "Content-transfer-encoding: quoted-printable\r\n"
383 + quoted_printable_encode(
384 "<html><body>" + document.getElementById("ctdl-editor-body").innerHTML + "</body></html>"
386 + "--" + boundary + "--\r\n"
389 var request = new XMLHttpRequest();
390 request.open("PUT", url, true);
391 request.setRequestHeader("Content-type", "multipart/mixed; boundary=\"" + boundary + "\"");
392 request.onreadystatechange = function() {
393 if (request.readyState == 4) {
394 document.body.style.cursor = "default";
395 if (Math.trunc(request.status / 100) == 2) {
396 headers = request.getAllResponseHeaders().split("\n");
397 for (var i in headers) {
398 if (headers[i].startsWith("etag: ")) {
399 new_msg_num = headers[i].split(" ")[1];
403 // change the name of the editor div to make it look like a regular message...
404 document.getElementById(editor_div_name).innerHTML = "FIXME render message " + new_msg_num;
407 error_message = request.responseText;
408 if (error_message.length == 0) {
409 error_message = _("An error has occurred.");
411 alert(error_message); // editor remains open
415 request.send(body_text);
419 // Bold, italics, etc.
420 function forum_format(command, value) {
421 document.execCommand(command, false, value);
425 // Make the URL entry box appear.
426 // When the user clicks into the URL box it will make the previous focus disappear, so we have to save it.
427 function forum_display_urlbox() {
428 document.getElementById("forum_selection_start").value = window.getSelection().anchorOffset;
429 document.getElementById("forum_selection_end").value = window.getSelection().focusOffset;
430 document.getElementById("forum_url_entry_box").style.display = "block";
434 // When the URL box is closed, this gets called. do_save is true for Save, false for Cancel.
435 function forum_close_urlbox(do_save) {
437 var tag = document.getElementById("ctdl-editor-body");
438 var start_replace = document.getElementById("forum_selection_start").value; // use saved selection range
439 var end_replace = document.getElementById("forum_selection_end").value;
440 new_text = tag.innerHTML.substring(0, start_replace)
441 + "<a href=\"" + document.getElementById("forum_txtFormatUrl").value + "\">"
442 + tag.innerHTML.substring(start_replace, end_replace)
444 + tag.innerHTML.substring(end_replace);
445 tag.innerHTML = new_text;
447 document.getElementById("forum_txtFormatUrl").value = ""; // clear url box for next time
448 document.getElementById("forum_url_entry_box").style.display = "none";