]> git.mxchange.org Git - friendica.git/blob - include/tags.php
Issue 3857: There is the possibility of a bad handling of dislikes
[friendica.git] / include / tags.php
1 <?php
2
3 use Friendica\App;
4 use Friendica\Core\System;
5
6 function create_tags_from_item($itemid) {
7         $profile_base = System::baseUrl();
8         $profile_data = parse_url($profile_base);
9         $profile_base_friendica = $profile_data['host'].$profile_data['path']."/profile/";
10         $profile_base_diaspora = $profile_data['host'].$profile_data['path']."/u/";
11
12         $messages = q("SELECT `guid`, `uid`, `id`, `edited`, `deleted`, `created`, `received`, `title`, `body`, `tag`, `parent` FROM `item` WHERE `id` = %d LIMIT 1", intval($itemid));
13
14         if (!$messages)
15                 return;
16
17         $message = $messages[0];
18
19         // Clean up all tags
20         q("DELETE FROM `term` WHERE `otype` = %d AND `oid` = %d AND `type` IN (%d, %d)",
21                 intval(TERM_OBJ_POST),
22                 intval($itemid),
23                 intval(TERM_HASHTAG),
24                 intval(TERM_MENTION));
25
26         if ($message["deleted"])
27                 return;
28
29         $taglist = explode(",", $message["tag"]);
30
31         $tags = "";
32         foreach ($taglist as $tag)
33                 if ((substr(trim($tag), 0, 1) == "#") || (substr(trim($tag), 0, 1) == "@"))
34                         $tags .= " ".trim($tag);
35                 else
36                         $tags .= " #".trim($tag);
37
38         $data = " ".$message["title"]." ".$message["body"]." ".$tags." ";
39
40         // ignore anything in a code block
41         $data = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$data);
42
43         $tags = array();
44
45         $pattern = "/\W\#([^\[].*?)[\s'\".,:;\?!\[\]\/]/ism";
46         if (preg_match_all($pattern, $data, $matches))
47                 foreach ($matches[1] as $match)
48                         $tags["#".strtolower($match)] = "";
49
50         $pattern = "/\W([\#@])\[url\=(.*?)\](.*?)\[\/url\]/ism";
51         if (preg_match_all($pattern, $data, $matches, PREG_SET_ORDER)) {
52                 foreach ($matches as $match)
53                         $tags[$match[1].strtolower(trim($match[3], ',.:;[]/\"?!'))] = $match[2];
54         }
55
56         foreach ($tags as $tag=>$link) {
57
58                 if (substr(trim($tag), 0, 1) == "#") {
59                         // try to ignore #039 or #1 or anything like that
60                         if (ctype_digit(substr(trim($tag),1)))
61                                 continue;
62                         // try to ignore html hex escapes, e.g. #x2317
63                         if ((substr(trim($tag),1,1) == 'x' || substr(trim($tag),1,1) == 'X') && ctype_digit(substr(trim($tag),2)))
64                                 continue;
65                         $type = TERM_HASHTAG;
66                         $term = substr($tag, 1);
67                 } elseif (substr(trim($tag), 0, 1) == "@") {
68                         $type = TERM_MENTION;
69                         $term = substr($tag, 1);
70                 } else { // This shouldn't happen
71                         $type = TERM_HASHTAG;
72                         $term = $tag;
73                 }
74
75                 if ($message["uid"] == 0) {
76                         $global = true;
77
78                         q("UPDATE `term` SET `global` = 1 WHERE `otype` = %d AND `guid` = '%s'",
79                                 intval(TERM_OBJ_POST), dbesc($message["guid"]));
80                 } else {
81                         $isglobal = q("SELECT `global` FROM `term` WHERE `uid` = 0 AND `otype` = %d AND `guid` = '%s'",
82                                 intval(TERM_OBJ_POST), dbesc($message["guid"]));
83
84                         $global = (count($isglobal) > 0);
85                 }
86
87                 $r = q("INSERT INTO `term` (`uid`, `oid`, `otype`, `type`, `term`, `url`, `guid`, `created`, `received`, `global`)
88                                 VALUES (%d, %d, %d, %d, '%s', '%s', '%s', '%s', '%s', %d)",
89                         intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval($type), dbesc($term),
90                         dbesc($link), dbesc($message["guid"]), dbesc($message["created"]), dbesc($message["received"]), intval($global));
91
92                 // Search for mentions
93                 if ((substr($tag, 0, 1) == '@') && (strpos($link, $profile_base_friendica) || strpos($link, $profile_base_diaspora))) {
94                         $users = q("SELECT `uid` FROM `contact` WHERE self AND (`url` = '%s' OR `nurl` = '%s')", $link, $link);
95                         foreach ($users AS $user) {
96                                 if ($user["uid"] == $message["uid"]) {
97                                         q("UPDATE `item` SET `mention` = 1 WHERE `id` = %d", intval($itemid));
98
99                                         q("UPDATE `thread` SET `mention` = 1 WHERE `iid` = %d", intval($message["parent"]));
100                                 }
101                         }
102                 }
103         }
104 }
105
106 function create_tags_from_itemuri($itemuri, $uid) {
107         $messages = q("SELECT `id` FROM `item` WHERE uri ='%s' AND uid=%d", dbesc($itemuri), intval($uid));
108
109         if (count($messages)) {
110                 foreach ($messages as $message) {
111                         create_tags_from_item($message["id"]);
112                 }
113         }
114 }
115
116 function update_items() {
117
118         $messages = dba::p("SELECT `oid`,`item`.`guid`, `item`.`created`, `item`.`received` FROM `term` INNER JOIN `item` ON `item`.`id`=`term`.`oid` WHERE `term`.`otype` = 1 AND `term`.`guid` = ''");
119
120         logger("fetched messages: ".dba::num_rows($messages));
121         while ($message = dba::fetch($messages)) {
122
123                 if ($message["uid"] == 0) {
124                         $global = true;
125
126                         q("UPDATE `term` SET `global` = 1 WHERE `otype` = %d AND `guid` = '%s'",
127                                 intval(TERM_OBJ_POST), dbesc($message["guid"]));
128                 } else {
129                         $isglobal = q("SELECT `global` FROM `term` WHERE `uid` = 0 AND `otype` = %d AND `guid` = '%s'",
130                                 intval(TERM_OBJ_POST), dbesc($message["guid"]));
131
132                         $global = (count($isglobal) > 0);
133                 }
134
135                 q("UPDATE `term` SET `guid` = '%s', `created` = '%s', `received` = '%s', `global` = %d WHERE `otype` = %d AND `oid` = %d",
136                         dbesc($message["guid"]), dbesc($message["created"]), dbesc($message["received"]),
137                         intval($global), intval(TERM_OBJ_POST), intval($message["oid"]));
138         }
139
140         dba::close($messages);
141
142         $messages = dba::p("SELECT `guid` FROM `item` WHERE `uid` = 0");
143
144         logger("fetched messages: ".dba::num_rows($messages));
145         while ($message = dba::fetch(messages)) {
146                 q("UPDATE `item` SET `global` = 1 WHERE `guid` = '%s'", dbesc($message["guid"]));
147         }
148
149         dba::close($messages);
150 }