projects / moodle.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
incorrect use of preg_quote(), add '/' to list of quoted chars - see man page; merged...
[moodle.git] / mod / chat / lib.php
CommitLineData
1c61c8d6 1<?php // $Id$
1515a89e 2
3/// Library of functions and constants for module chat
4
b5012f3e 5if (!isset($CFG->chat_refresh_room)) {
6 set_config("chat_refresh_room", 5);
b5de723d 7}
b5012f3e 8if (!isset($CFG->chat_refresh_userlist)) {
9 set_config("chat_refresh_userlist", 10);
b5de723d 10}
b5012f3e 11if (!isset($CFG->chat_old_ping)) {
34308732 12 set_config("chat_old_ping", 35);
b5de723d 13}
d434b9ae 14if (!isset($CFG->chat_method)) {
15 set_config("chat_method", "header_js");
b5de723d 16}
d434b9ae 17if (!isset($CFG->chat_serverhost)) {
18 set_config("chat_serverhost", $_SERVER['HTTP_HOST']);
b5de723d 19}
d434b9ae 20if (!isset($CFG->chat_serverip)) {
21 set_config("chat_serverip", $_SERVER['SERVER_ADDR']);
b5de723d 22}
d434b9ae 23if (!isset($CFG->chat_serverport)) {
24 set_config("chat_serverport", 9111);
b5de723d 25}
d434b9ae 26if (!isset($CFG->chat_servermax)) {
27 set_config("chat_servermax", 100);
b5de723d 28}
1515a89e 29
30define("CHAT_DRAWBOARD", false); // Look into this later
31
ff458eb5 32global $THEME;
1515a89e 33
34// The HTML head for the message window to start with (<!-- nix --> is used to get some browsers starting with output
35$CHAT_HTMLHEAD = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/REC-html40/loose.dtd\"><html><head></head>\n<body bgcolor=\"#FFFFFF\">\n\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n";
36
37// The HTML head for the message window to start with (with js scrolling)
38$CHAT_HTMLHEAD_JS = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/REC-html40/loose.dtd\"><html><head><script language=\"JavaScript\">\n<!--\nfunction move()\n{\nif (scroll_active) window.scroll(1,400000);\nwindow.setTimeout(\"move()\",100);\n}\nscroll_active = true;\nmove();\n//-->\n</script>\n</head>\n<body bgcolor=\"#FFFFFF\" onBlur=\"scroll_active = true\" onFocus=\"scroll_active = false\">\n\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n";
39
40// The HTML code for standard empty pages (e.g. if a user was kicked out)
41$CHAT_HTMLHEAD_OUT = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/REC-html40/loose.dtd\"><html><head><title>You are out!</title></head><body bgcolor=\"$THEME->body\"></body></html>";
42
43// The HTML head for the message input page
44$CHAT_HTMLHEAD_MSGINPUT = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/REC-html40/loose.dtd\"><html><head><title>Message Input</title></head><body bgcolor=\"$THEME->body\">";
45
46// The HTML code for the message input page, with JavaScript
47$CHAT_HTMLHEAD_MSGINPUT_JS = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/REC-html40/loose.dtd\"><html><head><title>Message Input</title>\n<script language=\"Javascript\">\n<!--\nscroll_active = true;\nfunction empty_field_and_submit()\n{\ndocument.fdummy.arsc_message.value=document.f.arsc_message.value;\ndocument.fdummy.submit();\ndocument.f.arsc_message.focus();\ndocument.f.arsc_message.select();\nreturn false;\n}\n// -->\n</script>\n</head><body bgcolor=\"$THEME->body\" OnLoad=\"document.f.arsc_message.focus();document.f.arsc_message.select();\">";
48
fbabbd23 49// Dummy data that gets output to the browser as needed, in order to make it show output
50$CHAT_DUMMY_DATA = "<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n<!-- nix -->\n";
1515a89e 51
52function chat_add_instance($chat) {
b5de723d 53/// Given an object containing all the necessary data,
54/// (defined by the form in mod.html) this function
55/// will create a new instance and return the id number
1515a89e 56/// of the new instance.
57
58 $chat->timemodified = time();
59
b5de723d 60 $chat->chattime = make_timestamp($chat->chatyear, $chat->chatmonth, $chat->chatday,
fcd3a1ee 61 $chat->chathour, $chat->chatminute);
b5de723d 62
8496c4af 63 if ($returnid = insert_record("chat", $chat)) {
64
65 $event = NULL;
66 $event->name = $chat->name;
67 $event->description = $chat->intro;
68 $event->courseid = $chat->course;
69 $event->groupid = 0;
70 $event->userid = 0;
71 $event->modulename = 'chat';
72 $event->instance = $returnid;
73 $event->eventtype = $chat->schedule;
74 $event->timestart = $chat->chattime;
75 $event->timeduration = 0;
76
77 add_event($event);
78 }
79
80 return $returnid;
1515a89e 81}
82
83
84function chat_update_instance($chat) {
b5de723d 85/// Given an object containing all the necessary data,
86/// (defined by the form in mod.html) this function
1515a89e 87/// will update an existing instance with new data.
88
89 $chat->timemodified = time();
90 $chat->id = $chat->instance;
91
b5de723d 92 $chat->chattime = make_timestamp($chat->chatyear, $chat->chatmonth, $chat->chatday,
fcd3a1ee 93 $chat->chathour, $chat->chatminute);
1515a89e 94
8496c4af 95 if ($returnid = update_record("chat", $chat)) {
96
97 $event = NULL;
98
99 if ($event->id = get_field('event', 'id', 'modulename', 'chat', 'instance', $chat->id)) {
100
101 $event->name = $chat->name;
102 $event->description = $chat->intro;
103 $event->timestart = $chat->chattime;
104
105 update_event($event);
106 }
107 }
108
109 return $returnid;
1515a89e 110}
111
112
113function chat_delete_instance($id) {
b5de723d 114/// Given an ID of an instance of this module,
115/// this function will permanently delete the instance
116/// and any data that depends on it.
1515a89e 117
118 if (! $chat = get_record("chat", "id", "$id")) {
119 return false;
120 }
121
122 $result = true;
123
124 # Delete any dependent records here #
125
126 if (! delete_records("chat", "id", "$chat->id")) {
127 $result = false;
128 }
129
36eb856f 130 if (! delete_records('event', 'modulename', 'chat', 'instance', $chat->id)) {
131 $result = false;
132 }
133
1515a89e 134 return $result;
135}
136
137function chat_user_outline($course, $user, $mod, $chat) {
b5de723d 138/// Return a small object with summary information about what a
1515a89e 139/// user has done with a given particular instance of this module
140/// Used for user activity reports.
141/// $return->time = the time they did it
142/// $return->info = a short text description
143
5c05d23b 144 $return = NULL;
1515a89e 145 return $return;
146}
147
148function chat_user_complete($course, $user, $mod, $chat) {
b5de723d 149/// Print a detailed representation of what a user has done with
1515a89e 150/// a given particular instance of this module, for user activity reports.
151
152 return true;
153}
154
b7602a11 155function chat_print_recent_activity($course, $isteacher, $timestart) {
156/// Given a course and a date, prints a summary of all chat rooms
157/// that currently have people in them.
1515a89e 158/// This function is called from course/lib.php: print_recent_activity()
159
b7602a11 160 global $CFG;
161
c5a05b95 162 $timeold = time() - $CFG->chat_old_ping;
163
0469cccf 164 $lastpingsearch = ($CFG->chat_method == 'sockets') ? "": "AND cu.lastping > '$timeold'";
165
132911c8 166 if (!$chatusers = get_records_sql("SELECT u.id, cu.chatid, u.firstname, u.lastname
b7602a11 167 FROM {$CFG->prefix}chat_users as cu,
cea57965 168 {$CFG->prefix}chat as ch,
b7602a11 169 {$CFG->prefix}user as u
b5de723d 170 WHERE cu.userid = u.id
0469cccf 171 AND cu.chatid = ch.id $lastpingsearch
cea57965 172 AND ch.course = '$course->id'
b7602a11 173 ORDER BY cu.chatid ASC") ) {
174 return false;
175 }
1515a89e 176
3120f6f2 177 $isteacher = isteacher($course->id);
b7602a11 178
3120f6f2 179 $outputstarted = false;
b7602a11 180 $current = 0;
181 foreach ($chatusers as $chatuser) {
182 if ($current != $chatuser->chatid) {
183 if ($current) {
184 echo "</p>";
185 }
186 if ($chat = get_record("chat", "id", $chatuser->chatid)) {
3120f6f2 187 if (!($isteacher or instance_is_visible('chat', $chat))) { // Chat hidden to students
188 continue;
189 }
190 if (!$outputstarted) {
191 print_headline(get_string("currentchats", "chat").":");
192 $outputstarted = true;
193 }
1c61c8d6 194 echo "<p><font size=\"1\"><a href=\"$CFG->wwwroot/mod/chat/view.php?c=$chat->id\">$chat->name</a></font><br />";
b7602a11 195 }
196 $current = $chatuser->chatid;
197 }
8f6ca087 198 $fullname = fullname($chatuser);
1c61c8d6 199 echo "&nbsp;&nbsp;&nbsp;<font size=\"1\">- $fullname</font><br />";
b7602a11 200 }
48548144 201 echo "<br />";
b7602a11 202
203 return true;
1515a89e 204}
205
206function chat_cron () {
207/// Function to be run periodically according to the moodle cron
b5de723d 208/// This function searches for things that need to be done, such
209/// as sending out mail, toggling flags etc ...
1515a89e 210
211 global $CFG;
212
fcd3a1ee 213 chat_update_chat_times();
214
7d792369 215 chat_delete_old_users();
216
22a4491a 217 /// Delete old messages
218 if ($chats = get_records("chat")) {
219 foreach ($chats as $chat) {
220 if ($chat->keepdays) {
221 $timeold = time() - ($chat->keepdays * 24 * 3600);
222 delete_records_select("chat_messages", "chatid = '$chat->id' AND timestamp < '$timeold'");
223 }
224 }
225 }
226
1515a89e 227 return true;
228}
229
84a2fdd7 230function chat_get_participants($chatid, $groupid=0) {
05855091 231//Returns the users with data in one chat
232//(users with records in chat_messages, students)
233
234 global $CFG;
235
84a2fdd7 236 if ($groupid) {
237 $groupselect = " AND (c.groupid='$groupid' OR c.groupid='0')";
238 } else {
239 $groupselect = "";
240 }
241
05855091 242 //Get students
243 $students = get_records_sql("SELECT DISTINCT u.*
244 FROM {$CFG->prefix}user u,
245 {$CFG->prefix}chat_messages c
84a2fdd7 246 WHERE c.chatid = '$chatid' $groupselect
247 AND u.id = c.userid");
1515a89e 248
05855091 249 //Return students array (it contains an array of unique users)
250 return ($students);
251}
1515a89e 252
8496c4af 253function chat_refresh_events($courseid = 0) {
254// This standard function will check all instances of this module
255// and make sure there are up-to-date events created for each of them.
256// If courseid = 0, then every chat event in the site is checked, else
257// only chat events belonging to the course specified are checked.
258// This function is used, in its new format, by restore_refresh_events()
259
260 if ($courseid) {
261 if (! $chats = get_records("chat", "course", $courseid)) {
262 return true;
263 }
264 } else {
265 if (! $chats = get_records("chat")) {
266 return true;
267 }
268 }
dcd338ff 269 $moduleid = get_field('modules', 'id', 'name', 'chat');
8496c4af 270
271 foreach ($chats as $chat) {
272 $event = NULL;
273 $event->name = addslashes($chat->name);
274 $event->description = addslashes($chat->intro);
275 $event->timestart = $chat->chattime;
276
277 if ($event->id = get_field('event', 'id', 'modulename', 'chat', 'instance', $chat->id)) {
278 update_event($event);
279
280 } else {
281 $event->courseid = $chat->course;
282 $event->groupid = 0;
283 $event->userid = 0;
284 $event->modulename = 'chat';
285 $event->instance = $chat->id;
286 $event->eventtype = $chat->schedule;
287 $event->timeduration = 0;
dcd338ff 288 $event->visible = get_field('course_modules', 'visible', 'module', $moduleid, 'instance', $chat->id);
b5de723d 289
8496c4af 290 add_event($event);
291 }
292 }
293 return true;
294}
295
1515a89e 296//////////////////////////////////////////////////////////////////////
297/// Functions that require some SQL
298
84a2fdd7 299function chat_get_users($chatid, $groupid=0) {
1515a89e 300
301 global $CFG;
84a2fdd7 302
303 if ($groupid) {
304 $groupselect = " AND (c.groupid='$groupid' OR c.groupid='0')";
305 } else {
306 $groupselect = "";
307 }
b5de723d 308
426c0437 309 return get_records_sql("SELECT DISTINCT u.id, u.firstname, u.lastname, u.picture, c.lastmessageping, c.firstping
1515a89e 310 FROM {$CFG->prefix}chat_users c,
311 {$CFG->prefix}user u
312 WHERE c.chatid = '$chatid'
84a2fdd7 313 AND u.id = c.userid $groupselect
1515a89e 314 ORDER BY c.firstping ASC");
315}
316
84a2fdd7 317function chat_get_latest_message($chatid, $groupid=0) {
5a8625e4 318/// Efficient way to extract just the latest message
319/// Uses ADOdb directly instead of get_record_sql()
b5de723d 320/// because the LIMIT command causes problems with
5a8625e4 321/// the developer debugging in there.
1515a89e 322
5a8625e4 323 global $db, $CFG;
1515a89e 324
84a2fdd7 325 if ($groupid) {
326 $groupselect = " AND (groupid='$groupid' OR groupid='0')";
327 } else {
328 $groupselect = "";
329 }
330
5a8625e4 331 if (!$rs = $db->Execute("SELECT *
b5de723d 332 FROM {$CFG->prefix}chat_messages
84a2fdd7 333 WHERE chatid = '$chatid' $groupselect
5a8625e4 334 ORDER BY timestamp DESC LIMIT 1")) {
335 return false;
336 }
337 if ($rs->RecordCount() == 1) {
338 return (object)$rs->fields;
339 } else {
340 return false; // Found no records
341 }
1515a89e 342}
343
5a8625e4 344
1515a89e 345//////////////////////////////////////////////////////////////////////
346
fdff1f63 347function chat_login_user($chatid, $version="header_js", $groupid=0) {
1515a89e 348 global $USER;
349
350 $chatuser->chatid = $chatid;
351 $chatuser->userid = $USER->id;
fdff1f63 352 $chatuser->groupid = $groupid;
1515a89e 353 $chatuser->version = $version;
354 $chatuser->ip = $USER->lastIP;
f7e648da 355 $chatuser->lastping = $chatuser->firstping = $chatuser->lastmessageping = time();
1515a89e 356 $chatuser->sid = random_string(32);
357
358 if (!insert_record("chat_users", $chatuser)) {
359 return false;
360 }
361
362 return $chatuser->sid;
363}
364
7d792369 365function chat_delete_old_users() {
366// Delete the old and in the way
367
b5012f3e 368 global $CFG;
369
370 $timeold = time() - $CFG->chat_old_ping;
c7756c73 371 $query = "lastping < '$timeold'";
7d792369 372
96a391a5 373 if ($oldusers = get_records_select("chat_users", $query) ) {
374 delete_records_select("chat_users", $query);
7d792369 375 foreach ($oldusers as $olduser) {
376 $message->chatid = $olduser->chatid;
377 $message->userid = $olduser->userid;
84a2fdd7 378 $message->groupid = $olduser->groupid;
7d792369 379 $message->message = "exit";
380 $message->system = 1;
381 $message->timestamp = time();
b5de723d 382
7d792369 383 if (!insert_record("chat_messages", $message)) {
384 error("Could not insert a chat message!");
385 }
386 }
387 }
388}
1515a89e 389
22a4491a 390
fcd3a1ee 391function chat_update_chat_times($chatid=0) {
392/// Updates chat records so that the next chat time is correct
393
394 $timenow = time();
395 if ($chatid) {
396 if (!$chats[] = get_record_select("chat", "id = '$chatid' AND chattime <= '$timenow' AND schedule > '0'")) {
397 return;
398 }
399 } else {
400 if (!$chats = get_records_select("chat", "chattime <= '$timenow' AND schedule > '0'")) {
401 return;
402 }
403 }
404
405 foreach ($chats as $chat) {
7626969c 406 unset($chat->name);
407 unset($chat->intro);
fcd3a1ee 408 switch ($chat->schedule) {
409 case 1: // Single event - turn off schedule and disable
410 $chat->chattime = 0;
411 $chat->schedule = 0;
412 break;
413 case 2: // Repeat daily
414 $chat->chattime += 24 * 3600;
415 break;
416 case 3: // Repeat weekly
417 $chat->chattime += 7 * 24 * 3600;
418 break;
419 }
420 update_record("chat", $chat);
8496c4af 421
422 $event = NULL; // Update calendar too
423 if ($event->id = get_field('event', 'id', 'modulename', 'chat', 'instance', $chat->id)) {
424 $event->timestart = $chat->chattime;
425 update_event($event);
426 }
fcd3a1ee 427 }
428}
429
430
1515a89e 431function chat_browser_detect($HTTP_USER_AGENT) {
432
433 if(eregi("(opera) ([0-9]{1,2}.[0-9]{1,3}){0,1}", $HTTP_USER_AGENT, $match)
434 || eregi("(opera/)([0-9]{1,2}.[0-9]{1,3}){0,1}", $HTTP_USER_AGENT, $match))
435 {
436 $BName = "Opera"; $BVersion=$match[2];
437 }
438 elseif( eregi("(konqueror)/([0-9]{1,2}.[0-9]{1,3})", $HTTP_USER_AGENT, $match) )
439 {
440 $BName = "Konqueror"; $BVersion=$match[2];
441 }
442 elseif( eregi("(lynx)/([0-9]{1,2}.[0-9]{1,2}.[0-9]{1,2})", $HTTP_USER_AGENT, $match) )
443 {
444 $BName = "Lynx"; $BVersion=$match[2];
445 }
446 elseif( eregi("(links) \(([0-9]{1,2}.[0-9]{1,3})", $HTTP_USER_AGENT, $match) )
447 {
448 $BName = "Links"; $BVersion=$match[2];
449 }
450 elseif( eregi("(msie) ([0-9]{1,2}.[0-9]{1,3})", $HTTP_USER_AGENT, $match) )
451 {
452 $BName = "MSIE"; $BVersion=$match[2];
453 }
454 elseif( eregi("(netscape6)/(6.[0-9]{1,3})", $HTTP_USER_AGENT, $match) )
455 {
456 $BName = "Netscape"; $BVersion=$match[2];
457 }
458 elseif( eregi("mozilla/5", $HTTP_USER_AGENT) )
459 {
460 $BName = "Netscape"; $BVersion="Unknown";
461 }
462 elseif( eregi("(mozilla)/([0-9]{1,2}.[0-9]{1,3})", $HTTP_USER_AGENT, $match) )
463 {
464 $BName = "Netscape"; $BVersion=$match[2];
465 }
466 elseif( eregi("w3m", $HTTP_USER_AGENT) )
467 {
468 $BName = "w3m"; $BVersion="Unknown";
469 }
470 else
471 {
472 $BName = "Unknown"; $BVersion="Unknown";
473 }
474
475 if(eregi("linux", $HTTP_USER_AGENT))
476 {
477 $BPlatform = "Linux";
478 }
479 elseif( eregi("win32", $HTTP_USER_AGENT) )
480 {
481 $BPlatform = "Windows";
482 }
483 elseif( (eregi("(win)([0-9]{2})", $HTTP_USER_AGENT, $match) )
484 || (eregi("(windows) ([0-9]{2})", $HTTP_USER_AGENT, $match) ))
485 {
486 $BPlatform = "Windows $match[2]";
487 }
488 elseif( eregi("(winnt)([0-9]{1,2}.[0-9]{1,2}){0,1}", $HTTP_USER_AGENT, $match) )
489 {
490 $BPlatform = "Windows NT $match[2]";
491 }
492 elseif( eregi("(windows nt)( ){0,1}([0-9]{1,2}.[0-9]{1,2}){0,1}", $HTTP_USER_AGENT, $match) )
493 {
494 $BPlatform = "Windows NT $match[3]";
495 }
496 elseif( eregi("mac", $HTTP_USER_AGENT) )
497 {
498 $BPlatform = "Macintosh";
499 }
500 elseif( eregi("(sunos) ([0-9]{1,2}.[0-9]{1,2}){0,1}", $HTTP_USER_AGENT, $match) )
501 {
502 $BPlatform = "SunOS $match[2]";
503 }
504 elseif( eregi("(beos) r([0-9]{1,2}.[0-9]{1,2}){0,1}", $HTTP_USER_AGENT, $match) )
505 {
506 $BPlatform = "BeOS $match[2]";
507 }
508 elseif( eregi("freebsd", $HTTP_USER_AGENT) )
509 {
510 $BPlatform = "FreeBSD";
511 }
512 elseif( eregi("openbsd", $HTTP_USER_AGENT) )
513 {
514 $BPlatform = "OpenBSD";
515 }
516 elseif( eregi("irix", $HTTP_USER_AGENT) )
517 {
518 $BPlatform = "IRIX";
519 }
520 elseif( eregi("os/2", $HTTP_USER_AGENT) )
521 {
522 $BPlatform = "OS/2";
523 }
524 elseif( eregi("plan9", $HTTP_USER_AGENT) )
525 {
526 $BPlatform = "Plan9";
527 }
528 elseif( eregi("unix", $HTTP_USER_AGENT)
529 || eregi("hp-ux", $HTTP_USER_AGENT) )
530 {
531 $BPlatform = "Unix";
532 }
533 elseif( eregi("osf", $HTTP_USER_AGENT) )
534 {
535 $BPlatform = "OSF";
536 }
537 else
538 {
539 $BPlatform = "Unknown";
540 }
b5de723d 541
1515a89e 542 $return["name"] = $BName;
543 $return["version"] = $BVersion;
544 $return["platform"] = $BPlatform;
545 return $return;
546}
547
548function chat_display_version($version, $browser)
549{
550 GLOBAL $CFG;
551
552 $checked = "";
553 if (($version == "sockets") OR ($version == "push_js"))
554 {
555 $checked = "checked";
556 }
557 if (($version == "sockets" OR $version == "push_js")
558 AND
559 ($browser["name"] == "Lynx"
560 OR
561 $browser["name"] == "Links"
562 OR
563 $browser["name"] == "w3m"
564 OR
565 $browser["name"] == "Konqueror"
566 OR
567 ($browser["name"] == "Netscape" AND substr($browser["version"], 0, 1) == "2")))
568 {
569 $checked = "";
570 }
571 if (($version == "text")
572 AND
573 ($browser["name"] == "Lynx"
574 OR
575 $browser["name"] == "Links"
576 OR
577 $browser["name"] == "w3m"))
578 {
579 $checked = "checked";
580 }
581 if (($version == "header")
582 AND
583 ($browser["name"] == "Konqueror"))
584 {
585 $checked = "checked";
586 }
587 if (($version == "header_js")
588 AND
589 ($browser["name"] == "Netscape" AND substr($browser["version"], 0, 1) == "2"))
590 {
591 $checked = "checked";
592 }
593 ?>
594 <tr>
595 <td valign="top">
b4510d53 596 <input type="radio" name="chat_chatversion" value="<?php echo $version; ?>"<?php echo $checked; ?> />
1515a89e 597 </td>
598 <td valign="top" align="left">
599 <font face="Arial" size="2">
600 <?php echo $chat_lang["gui_".$version]; ?>
601 </font>
602 </td>
603 </tr>
604 <?php
605
606}
607
82a524ef 608function chat_language_override($language) {
609 // Override the highest-ranking language variable from current_language()
610 // And save it so we can restore it again afterwards
611 global $CFG;
1515a89e 612
82a524ef 613 $oldlang = empty($CFG->courselang) ? NULL : $CFG->courselang;
614 $CFG->courselang = $language;
615
616 return $oldlang;
617}
618
619function chat_language_restore($language = NULL) {
620 // Restore the highest-ranking language variable from current_language()
621 global $CFG;
622
623 if(!empty($language)) {
624 $CFG->courselang = $language;
625 }
626}
627
628function chat_format_message_manually($message, $courseid, $sender, $currentuser, $language = NULL) {
b5de723d 629 global $CFG;
1515a89e 630
b5de723d 631 $output = New stdClass;
632 $output->beep = false; // by default
7d792369 633
b5de723d 634 if(empty($language)) {
635 $language = current_language();
1515a89e 636 }
637
82a524ef 638 $oldcfglang = chat_language_override($language);
b5de723d 639
640 // Get some additional info now that the language has been correctly set
641
642 // But before that :-) let's override get_user_timezone() for this call... messy stuff...
82a524ef 643 $tz = ($currentuser->timezone == 99) ? $CFG->timezone : $currentuser->timezone;
b5de723d 644 $message->strtime = userdate($message->timestamp, get_string('strftimemessage', 'chat'), $tz);
645
646 $message->picture = print_user_picture($sender->id, 0, $sender->picture, false, true, false);
582de679 647 if ($courseid) {
839f2456 648 $message->picture = "<a target=\"_new\" href=\"$CFG->wwwroot/user/view.php?id=$sender->id&amp;course=$courseid\">$message->picture</a>";
582de679 649 }
1515a89e 650
b5de723d 651 // Start processing the message
1515a89e 652
b5de723d 653 if(!empty($message->system)) {
654 // System event
655 $output->text = $message->strtime.': '.get_string('message'.$message->message, 'chat', fullname($sender));
656 $output->html = '<table><tr><td style="vertical-align: top;">'.$message->picture.'</td><td>';
2defdcd7 657 $output->html .= '<font size="2" color="#ccaaaa">'.$output->text.'</font></td></tr></table>';
7d792369 658
b5de723d 659 // Don't forget to reset the language before returning!!!
660 if(!empty($oldcfglang)) {
661 $CFG->courselang = $oldcfglang;
662 }
1515a89e 663 return $output;
664 }
665
82a524ef 666 // It's not a system event
b5de723d 667
668 $text = $message->message;
82a524ef 669
670 /// Parse the text to clean and filter it
671
672 $options->para = false;
673 $text = format_text($text, FORMAT_MOODLE, $options, $courseid);
7d792369 674
b5de723d 675 // And now check for special cases
676
677 if (substr($text, 0, 5) == 'beep ') {
678 /// It's a beep!
7d792369 679 $beepwho = trim(substr($text, 5));
9f85bed4 680
b5de723d 681 if ($beepwho == 'all') { // everyone
682 $outinfo = $message->strtime.': '.get_string('messagebeepseveryone', 'chat', fullname($sender));
683 $outmain = '';
684 $output->beep = true; // (eventually this should be set to
7d792369 685 // to a filename uploaded by the user)
686
82a524ef 687 } else if ($beepwho == $currentuser->id) { // current user
b5de723d 688 $outinfo = $message->strtime.': '.get_string('messagebeepsyou', 'chat', fullname($sender));
689 $outmain = '';
7d792369 690 $output->beep = true;
691
692 } else {
693 return false;
694 }
b5de723d 695 } else if (substr($text, 0, 1) == ':') { /// It's an MOO emote
696 $outinfo = $message->strtime;
697 $outmain = $sender->firstname.' '.substr($text, 1);
7d792369 698
b5de723d 699 } else if (substr($text, 0, 1) == '/') { /// It's a user command
1515a89e 700
7d792369 701 if (substr($text, 0, 4) == "/me ") {
b5de723d 702 $outinfo = $message->strtime;
703 $outmain = $sender->firstname.' '.substr($text, 4);
9f85bed4 704 } else {
b5de723d 705 $outinfo = $message->strtime;
7d792369 706 $outmain = $text;
1515a89e 707 }
9f85bed4 708
709 } else { /// It's a normal message
b5de723d 710 $outinfo = $message->strtime.' '.$sender->firstname;
7d792369 711 $outmain = $text;
1515a89e 712 }
713
9f85bed4 714 /// Format the message as a small table
1515a89e 715
b5de723d 716 $output->text = strip_tags($outinfo.': '.$outmain);
7d792369 717
1c61c8d6 718 $output->html = "<table><tr><td valign=\"top\">$message->picture</td><td><font size=\"2\">";
7d792369 719 $output->html .= "<font color=\"#888888\">$outinfo</font>";
720 if ($outmain) {
721 $output->html .= ": $outmain";
722 }
723 $output->html .= "</font></td></tr></table>";
1515a89e 724
b5de723d 725 // Don't forget to reset the language before returning!!!
82a524ef 726 chat_language_restore($oldcfglang);
b5de723d 727
7d792369 728 return $output;
b5de723d 729}
730
731function chat_format_message($message, $courseid=0) {
732/// Given a message object full of information, this function
733/// formats it appropriately into text and html, then
734/// returns the formatted data.
735
736 global $CFG, $USER;
737
738 if (!$user = get_record("user", "id", $message->userid)) {
739 return "Error finding user id = $message->userid";
740 }
741
82a524ef 742 return chat_format_message_manually($message, $courseid, $user, $USER);
1515a89e 743
744}
745
1515a89e 746?>
Moodle official production repository