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