1 // Copyright (c) 2016-2022 by the citadel.org team
3 // This program is open source software. Use, duplication, or
4 // disclosure are subject to the GNU General Public License v3.
8 function forum_readmessages(target_div_name, gt_msg, lt_msg) {
9 target_div = document.getElementById(target_div_name);
10 original_text = target_div.innerHTML; // in case we need to replace it after an error
11 target_div.innerHTML = ""
13 if (lt_msg < 9999999999) {
14 url = "/ctdl/r/" + escapeHTMLURI(current_room) + "/msgs.lt|" + lt_msg;
17 url = "/ctdl/r/" + escapeHTMLURI(current_room) + "/msgs.gt|" + gt_msg;
20 fetch_msg_list = async() => {
21 response = await fetch(url);
22 msgs = await(response.json());
24 target_div.innerHTML = "" ;
26 // If we were given an explicit starting point, by all means start there.
27 // Note that we don't have to remove them from the array because we did a 'msgs gt|xxx' command to Citadel.
29 msgs = msgs.slice(0, messages_per_page);
32 // Otherwise, show us the last 20 messages
34 if (msgs.length > messages_per_page) {
35 msgs = msgs.slice(msgs.length - messages_per_page);
37 new_old_div_name = randomString();
38 if (msgs.length < 1) {
44 target_div.innerHTML +=
45 "<div id=\"" + new_old_div_name + "\">" +
46 "<div class=\"ctdl-forum-nav\">" +
47 "<a href=\"javascript:forum_readmessages('" + new_old_div_name + "', 0, " + newlt + ");\">" +
48 "<i class=\"fa fa-arrow-circle-up\"></i> " +
49 _("Older posts") + " <i class=\"fa fa-arrow-circle-up\"></a></div></div></a></div></div>" ;
52 // The messages will go here.
53 let msgs_div_name = randomString();
54 target_div.innerHTML += "<div id=\"" + msgs_div_name + "\"> </div>" ;
56 if (lt_msg == 9999999999) {
57 new_new_div_name = randomString();
58 if (msgs.length <= 0) {
62 newgt = msgs[msgs.length-1];
64 target_div.innerHTML +=
65 "<div id=\"" + new_new_div_name + "\">" +
66 "<div id=\"ctdl-newmsg-here\"></div>" +
67 "<div class=\"ctdl-forum-nav\">" +
68 "<a href=\"javascript:forum_readmessages('" + new_new_div_name + "', " + newgt + ", 9999999999);\">" +
69 "<i class=\"fa fa-arrow-circle-down\"></i> " +
70 _("Newer posts") + " <i class=\"fa fa-arrow-circle-down\"></a></div></div>" ;
73 // Now figure out where to scroll to after rendering.
77 else if (lt_msg < 9999999999) {
78 scroll_to = msgs[msgs.length-1];
80 else if ( (logged_in) && (gt_msg == 0) && (lt_msg == 9999999999) ) {
81 scroll_to = msgs[msgs.length-1];
84 scroll_to = msgs[0]; // FIXME this is too naive
87 // Render the individual messages in the divs
88 forum_render_messages(msgs, msgs_div_name, scroll_to)
91 // if xhr fails, this will make the link reappear so the user can try again
92 target_div.innerHTML = original_text;
97 // make the nav buttons appear (post a new message, skip this room, goto next room)
99 document.getElementById("ctdl-newmsg-button").innerHTML = "<i class=\"fa fa-edit\"></i>" + _("Post message");
100 document.getElementById("ctdl-newmsg-button").style.display = "block";
102 document.getElementById("ctdl-skip-button").innerHTML = "<i class=\"fa fa-arrow-alt-circle-right\"></i>" + _("Skip this room");
103 document.getElementById("ctdl-skip-button").style.display = "block";
105 document.getElementById("ctdl-goto-button").innerHTML = "<i class=\"fa fa-arrow-circle-right\"></i>" + _("Goto next room");
106 document.getElementById("ctdl-goto-button").style.display = "block";
110 // Render a range of messages into the specified target div
111 function forum_render_messages(message_numbers, msgs_div_name, scroll_to) {
113 // Build an array of Promises and then wait for them all to resolve.
114 let num_msgs = message_numbers.length;
115 let msg_promises = Array.apply(null, Array(num_msgs));
116 for (i=0; i<num_msgs; ++i) {
117 msg_promises[i] = fetch("/ctdl/r/" + escapeHTMLURI(current_room) + "/" + message_numbers[i] + "/json")
118 .then(response => response.json())
121 console.error('Error: ', error);
126 // Here is the async function that waits for all the messages to be loaded, and then renders them.
127 fetch_msg_list = async() => {
128 document.body.style.cursor = "wait";
129 activate_loading_modal();
130 await Promise.all(msg_promises);
131 deactivate_loading_modal();
132 document.body.style.cursor = "default";
134 // At this point all of the Promises are resolved and we can render.
135 // Note: "let" keeps "i" in scope even through the .then scope
136 let scroll_to_div = null;
137 for (let i=0; i<num_msgs; ++i) {
138 msg_promises[i].then((one_message) => {
139 let new_msg_div = forum_render_one(one_message, null);
140 document.getElementById(msgs_div_name).append(new_msg_div);
141 if (message_numbers[i] == scroll_to) {
142 scroll_to_div = new_msg_div;
144 if (i == num_msgs - 1) {
145 scroll_to_div.scrollIntoView({behavior: "smooth", block: "start", inline: "nearest"});
153 // Make a note of the highest message number we saw, so we can mark it when we "Goto next room"
154 // (Compared to the text client, this is actually more like <A>bandon than <G>oto)
155 if ((num_msgs > 0) && (message_numbers[num_msgs-1] > last_seen)) {
156 last_seen = message_numbers[num_msgs-1];
161 // Render a message. Returns a div object.
162 function forum_render_one(msg, existing_div) {
164 if (existing_div != null) { // If an existing div was supplied, render into it
167 else { // Otherwise, create a new one
168 div = document.createElement("div");
171 mdiv = randomString(); // Give the div a new name
176 "<div class=\"ctdl-msg-wrapper\">" // begin message wrapper
177 + "<div class=\"ctdl-avatar\" onClick=\"javascript:user_profile('" + msg.from + "');\">"
178 + "<img src=\"/ctdl/u/" + msg.from + "/userpic\" width=\"32\" "
179 + "onerror=\"this.parentNode.innerHTML='<i class="fa fa-user-circle fa-2x"></i> '\">"
180 + "</div>" // end avatar
181 + "<div class=\"ctdl-msg-content\">" // begin content
182 + "<div class=\"ctdl-msg-header\">" // begin header
183 + "<span class=\"ctdl-msg-header-info\">" // begin header info on left side
184 + "<span class=\"ctdl-username\" onClick=\"javascript:user_profile('" + msg.from + "');\">"
186 + "</a></span>" // end username
187 + "<span class=\"ctdl-msgdate\">"
188 + convertTimestamp(msg.time)
189 + "</span>" // end msgdate
190 + "</span>" // end header info on left side
191 + "<span class=\"ctdl-msg-header-buttons\">" // begin buttons on right side
193 + "<span class=\"ctdl-msg-button\">" // Reply
194 + "<a href=\"javascript:open_reply_box('"+mdiv+"',false,'"+msg.wefw+"','"+msg.msgn+"');\">"
195 + "<i class=\"fa fa-reply\"></i> "
199 + "<span class=\"ctdl-msg-button\">" // ReplyQuoted
200 + "<a href=\"javascript:open_reply_box('"+mdiv+"',true,'"+msg.wefw+"','"+msg.msgn+"');\">"
201 + "<i class=\"fa fa-comment\"></i> "
205 if (can_delete_messages) {
207 "<span class=\"ctdl-msg-button\"><a href=\"#\">" // Delete (shown only with permission)
208 + "<i class=\"fa fa-trash\"></i> "
214 "</span>"; // end buttons on right side
217 "<br><span class=\"ctdl-msgsubject\">" + msg.subj + "</span>";
220 "</div><br>" // end header
221 + "<div class=\"ctdl-msg-body\" id=\"" + mdiv + "_body\">" // begin body
223 + "</div>" // end body
224 + "</div>" // end content
225 + "</div>" // end wrapper
229 outmsg = "<div class=\"ctdl-msg-wrapper\">" + err.message + "</div>";
232 div.innerHTML = outmsg;
237 // Compose a references string using existing references plus the message being replied to
238 function compose_references(references, msgid) {
239 if (references.includes("@")) {
240 refs = references + "|";
247 // If the resulting string is too big, we can trim it here
248 while (refs.length > 900) {
250 r.splice(1,1); // remove the second element so we keep the root
257 // Open a reply box directly below a specific message
258 function open_reply_box(parent_div, is_quoted, references, msgid) {
259 let new_div = document.createElement("div");
260 let new_div_name = randomString();
261 new_div.id = new_div_name;
263 document.getElementById(parent_div).append(new_div);
266 "<div class=\"ctdl-msg-wrapper ctdl-msg-reply\">" // begin message wrapper
267 + "<div class=\"ctdl-avatar\">" // begin avatar
268 + "<img src=\"/ctdl/u/" + current_user + "/userpic\" width=\"32\" "
269 + "onerror=\"this.parentNode.innerHTML='<i class="fa fa-user-circle fa-2x"></i> '\">"
270 + "</div>" // end avatar
271 + "<div class=\"ctdl-msg-content\">" // begin content
272 + "<div class=\"ctdl-msg-header\">" // begin header
273 + "<span class=\"ctdl-msg-header-info\">" // begin header info on left side
274 + "<span class=\"ctdl-username\">"
275 + current_user // user = me !
277 + "<span class=\"ctdl-msgdate\">"
278 + convertTimestamp(Date.now() / 1000) // the current date/time (temporary for display)
280 + "</span>" // end header info on left side
281 + "<span class=\"ctdl-msg-header-buttons\">" // begin buttons on right side
283 + "<span class=\"ctdl-msg-button\">" // bold button
284 + "<a href=\"javascript:void(0)\" onclick=\"forum_format('bold')\">"
285 + "<i class=\"fa fa-bold fa-fw\"></i>"
288 + "<span class=\"ctdl-msg-button\">" // italic button
289 + "<a href=\"javascript:void(0)\" onclick=\"forum_format('italic')\">"
290 + "<i class=\"fa fa-italic fa-fw\"></i>"
293 + "<span class=\"ctdl-msg-button\">" // list button
294 + "<a href=\"javascript:void(0)\" onclick=\"forum_format('insertunorderedlist')\">"
295 + "<i class=\"fa fa-list fa-fw\"></i>"
298 + "<span class=\"ctdl-msg-button\">" // link button
299 + "<a href=\"javascript:void(0)\" onclick=\"forum_display_urlbox()\">"
300 + "<i class=\"fa fa-link fa-fw\"></i>"
303 + "</span>"; // end buttons on right side
306 //"<br><span id=\"ctdl-subject\" class=\"ctdl-msgsubject\">" + "FIXME subject" + "</span>";
308 //else { // hidden filed for empty subject
309 replybox += "<span id=\"ctdl-subject\" style=\"display:none\"></span>";
312 "</div><br>" // end header
314 + "<span id=\"ctdl-replyreferences\" style=\"display:none\">" // hidden field for references
315 + compose_references(references,msgid) + "</span>"
317 + "<div class=\"ctdl-msg-body\" id=\"ctdl-editor-body\" style=\"padding:5px;\" contenteditable=\"true\">"
318 + "\n"; // empty initial content
321 replybox += "<br><blockquote>"
322 + document.getElementById(parent_div+"_body").innerHTML
329 + "<div class=\"ctdl-msg-header\">" // begin footer
330 + "<span class=\"ctdl-msg-header-info\">" // begin footer info on left side
331 + " " // (nothing here for now)
332 + "</span>" // end footer info on left side
333 + "<span class=\"ctdl-msg-header-buttons\">" // begin buttons on right side
335 + "<span class=\"ctdl-msg-button\"><a href=\"javascript:forum_save_message('" + new_div_name + "');\">"
336 + "<i class=\"fa fa-check\" style=\"color:green\"></i> " // save button
340 + "<span class=\"ctdl-msg-button\"><a href=\"javascript:forum_cancel_post('" + new_div_name + "');\">"
341 + "<i class=\"fa fa-trash\" style=\"color:red\"></i> " // cancel button
345 + "</span>" // end buttons on right side
346 + "</div><br>" // end footer
349 + "</div>" // end content
350 + "</div>" // end wrapper
352 + "<div id=\"forum_url_entry_box\" class=\"w3-modal\">" // begin URL entry modal
353 + " <div class=\"w3-modal-content w3-animate-top w3-card-4\">"
354 + " <header class=\"w3-container w3-blue\"> "
355 + " <p><span>URL:</span></p>"
357 + " <div class=\"w3-container w3-blue\">"
358 + " <input id=\"forum_txtFormatUrl\" placeholder=\"http://\" style=\"width:100%\">"
360 + " <footer class=\"w3-container w3-blue\">"
361 + " <p><span class=\"ctdl-msg-button\"><a href=\"javascript:forum_close_urlbox(true);\">"
362 + " <i class=\"fa fa-check\" style=\"color:green\"></i> "
365 + " <span class=\"ctdl-msg-button\"><a href=\"javascript:forum_close_urlbox(false);\">"
366 + " <i class=\"fa fa-trash\" style=\"color:red\"></i> "
372 + " <input id=\"forum_selection_start\" style=\"display:none\"></input>" // hidden fields
373 + " <input id=\"forum_selection_end\" style=\"display:none\"></input>" // to store selection range
374 + "</div>" // end URL entry modal
377 document.getElementById(new_div_name).innerHTML = replybox;
378 document.getElementById(new_div_name).scrollIntoView({behavior: "smooth", block: "end", inline: "nearest"});
380 // These actions must happen *after* the initial render loop completes.
381 setTimeout(function() {
382 var tag = document.getElementById("ctdl-editor-body");
383 tag.focus(); // sets the focus
384 window.getSelection().collapse(tag.firstChild, 0); // positions the cursor
389 // Abort a message post (it simply destroys the div)
390 function forum_cancel_post(div_name) {
391 document.getElementById(div_name).outerHTML = ""; // make it cease to exist
395 // Save the posted message to the server
396 function forum_save_message(editor_div_name) {
398 document.body.style.cursor = "wait";
399 wefw = (document.getElementById("ctdl-replyreferences").innerHTML).replaceAll("|","!"); // references (if present)
400 subj = document.getElementById("ctdl-subject").innerHTML; // subject (if present)
402 url = "/ctdl/r/" + escapeHTMLURI(current_room)
403 + "/dummy_name_for_new_message"
406 boundary = randomString();
408 "--" + boundary + "\r\n"
409 + "Content-type: text/html\r\n"
410 + "Content-transfer-encoding: quoted-printable\r\n"
412 + quoted_printable_encode(
413 "<html><body>" + document.getElementById("ctdl-editor-body").innerHTML + "</body></html>"
415 + "--" + boundary + "--\r\n"
418 var request = new XMLHttpRequest();
419 request.open("PUT", url, true);
420 request.setRequestHeader("Content-type", "multipart/mixed; boundary=\"" + boundary + "\"");
421 request.onreadystatechange = function() {
422 if (request.readyState == 4) {
423 document.body.style.cursor = "default";
424 if (Math.trunc(request.status / 100) == 2) {
425 headers = request.getAllResponseHeaders().split("\n");
426 for (var i in headers) {
427 if (headers[i].startsWith("etag: ")) {
428 new_msg_num = headers[i].split(" ")[1];
432 // After saving the message, load it back from the server and replace the editor div with it.
433 replace_editor_with_final_message = async() => {
434 response = await fetch("/ctdl/r/" + escapeHTMLURI(current_room) + "/" + new_msg_num + "/json");
436 newly_posted_message = await(response.json());
437 forum_render_one(newly_posted_message, document.getElementById(editor_div_name));
440 replace_editor_with_final_message();
444 error_message = request.responseText;
445 if (error_message.length == 0) {
446 error_message = _("An error has occurred.");
448 alert(error_message); // editor remains open
452 request.send(body_text);
456 // Bold, italics, etc.
457 function forum_format(command, value) {
458 document.execCommand(command, false, value);
462 // Make the URL entry box appear.
463 // When the user clicks into the URL box it will make the previous focus disappear, so we have to save it.
464 function forum_display_urlbox() {
465 document.getElementById("forum_selection_start").value = window.getSelection().anchorOffset;
466 document.getElementById("forum_selection_end").value = window.getSelection().focusOffset;
467 document.getElementById("forum_url_entry_box").style.display = "block";
471 // When the URL box is closed, this gets called. do_save is true for Save, false for Cancel.
472 function forum_close_urlbox(do_save) {
474 var tag = document.getElementById("ctdl-editor-body");
475 var start_replace = document.getElementById("forum_selection_start").value; // use saved selection range
476 var end_replace = document.getElementById("forum_selection_end").value;
477 new_text = tag.innerHTML.substring(0, start_replace)
478 + "<a href=\"" + document.getElementById("forum_txtFormatUrl").value + "\">"
479 + tag.innerHTML.substring(start_replace, end_replace)
481 + tag.innerHTML.substring(end_replace);
482 tag.innerHTML = new_text;
484 document.getElementById("forum_txtFormatUrl").value = ""; // clear url box for next time
485 document.getElementById("forum_url_entry_box").style.display = "none";
489 // User has clicked the "Post message" button. This is roughly the same as "reply" except there is no parent message.
490 function forum_entmsg() {
491 open_reply_box("ctdl-newmsg-here", false, "", "");