src/Model/Term.php

   1 <?php
   2 /**
   3  * @file src/Model/Term
   4  */
   5 namespace Friendica\Model;
   6
   7 use Friendica\Core\System;
   8 use Friendica\Database\DBM;
   9 use dba;
  10
  11 require_once 'boot.php';
  12 require_once 'include/conversation.php';
  13 require_once 'include/dba.php';
  14
  15 class Term
  16 {
  17         public static function insertFromTagFieldByItemId($itemid)
  18         {
  19                 $profile_base = System::baseUrl();
  20                 $profile_data = parse_url($profile_base);
  21                 $profile_path = defaults($profile_data, 'path', '');
  22                 $profile_base_friendica = $profile_data['host'] . $profile_path . '/profile/';
  23                 $profile_base_diaspora = $profile_data['host'] . $profile_path . '/u/';
  24
  25                 $fields = ['guid', 'uid', 'id', 'edited', 'deleted', 'created', 'received', 'title', 'body', 'tag', 'parent'];
  26                 $message = dba::selectFirst('item', $fields, ['id' => $itemid]);
  27                 if (!DBM::is_result($message)) {
  28                         return;
  29                 }
  30
  31                 // Clean up all tags
  32                 dba::delete('term', ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_HASHTAG, TERM_MENTION]]);
  33
  34                 if ($message['deleted']) {
  35                         return;
  36                 }
  37
  38                 $taglist = explode(',', $message['tag']);
  39
  40                 $tags_string = '';
  41                 foreach ($taglist as $tag) {
  42                         if ((substr(trim($tag), 0, 1) == '#') || (substr(trim($tag), 0, 1) == '@')) {
  43                                 $tags_string .= ' ' . trim($tag);
  44                         } else {
  45                                 $tags_string .= ' #' . trim($tag);
  46                         }
  47                 }
  48
  49                 $data = ' ' . $message['title'] . ' ' . $message['body'] . ' ' . $tags_string . ' ';
  50
  51                 // ignore anything in a code block
  52                 $data = preg_replace('/\[code\](.*?)\[\/code\]/sm', '', $data);
  53
  54                 $tags = [];
  55
  56                 $pattern = '/\W\#([^\[].*?)[\s\'".,:;\?!\[\]\/]/ism';
  57                 if (preg_match_all($pattern, $data, $matches)) {
  58                         foreach ($matches[1] as $match) {
  59                                 $tags['#' . strtolower($match)] = '';
  60                         }
  61                 }
  62
  63                 $pattern = '/\W([\#@])\[url\=(.*?)\](.*?)\[\/url\]/ism';
  64                 if (preg_match_all($pattern, $data, $matches, PREG_SET_ORDER)) {
  65                         foreach ($matches as $match) {
  66                                 $tags[$match[1] . strtolower(trim($match[3], ',.:;[]/\"?!'))] = $match[2];
  67                         }
  68                 }
  69
  70                 foreach ($tags as $tag => $link) {
  71                         if (substr(trim($tag), 0, 1) == '#') {
  72                                 // try to ignore #039 or #1 or anything like that
  73                                 if (ctype_digit(substr(trim($tag), 1))) {
  74                                         continue;
  75                                 }
  76
  77                                 // try to ignore html hex escapes, e.g. #x2317
  78                                 if ((substr(trim($tag), 1, 1) == 'x' || substr(trim($tag), 1, 1) == 'X') && ctype_digit(substr(trim($tag), 2))) {
  79                                         continue;
  80                                 }
  81
  82                                 $type = TERM_HASHTAG;
  83                                 $term = substr($tag, 1);
  84                         } elseif (substr(trim($tag), 0, 1) == '@') {
  85                                 $type = TERM_MENTION;
  86                                 $term = substr($tag, 1);
  87                         } else { // This shouldn't happen
  88                                 $type = TERM_HASHTAG;
  89                                 $term = $tag;
  90                         }
  91
  92                         if ($message['uid'] == 0) {
  93                                 $global = true;
  94                                 dba::update('term', ['global' => true], ['otype' => TERM_OBJ_POST, 'guid' => $message['guid']]);
  95                         } else {
  96                                 $global = dba::exists('term', ['uid' => 0, 'otype' => TERM_OBJ_POST, 'guid' => $message['guid']]);
  97                         }
  98
  99                         dba::insert('term', [
 100                                 'uid'      => $message['uid'],
 101                                 'oid'      => $itemid,
 102                                 'otype'    => TERM_OBJ_POST,
 103                                 'type'     => $type,
 104                                 'term'     => $term,
 105                                 'url'      => $link,
 106                                 'guid'     => $message['guid'],
 107                                 'created'  => $message['created'],
 108                                 'received' => $message['received'],
 109                                 'global'   => $global
 110                         ]);
 111
 112                         // Search for mentions
 113                         if ((substr($tag, 0, 1) == '@') && (strpos($link, $profile_base_friendica) || strpos($link, $profile_base_diaspora))) {
 114                                 $users = q("SELECT `uid` FROM `contact` WHERE self AND (`url` = '%s' OR `nurl` = '%s')", $link, $link);
 115                                 foreach ($users AS $user) {
 116                                         if ($user['uid'] == $message['uid']) {
 117                                                 dba::update('item', ['mention' => true], ['id' => $itemid]);
 118                                                 dba::update('thread', ['mention' => true], ['iid' => $message['parent']]);
 119                                         }
 120                                 }
 121                         }
 122                 }
 123         }
 124
 125         /**
 126          * @param integer $itemid item id
 127          * @return void
 128          */
 129         public static function insertFromFileFieldByItemId($itemid)
 130         {
 131                 $message = dba::selectFirst('item', ['uid', 'deleted', 'file'], ['id' => $itemid]);
 132                 if (!DBM::is_result($message)) {
 133                         return;
 134                 }
 135
 136                 // Clean up all tags
 137                 dba::delete('term', ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_FILE, TERM_CATEGORY]]);
 138
 139                 if ($message["deleted"]) {
 140                         return;
 141                 }
 142
 143                 if (preg_match_all("/\[(.*?)\]/ism", $message["file"], $files)) {
 144                         foreach ($files[1] as $file) {
 145                                 dba::insert('term', [
 146                                         'uid' => $message["uid"],
 147                                         'oid' => $itemid,
 148                                         'otype' => TERM_OBJ_POST,
 149                                         'type' => TERM_FILE,
 150                                         'term' => $file
 151                                 ]);
 152                         }
 153                 }
 154
 155                 if (preg_match_all("/\<(.*?)\>/ism", $message["file"], $files)) {
 156                         foreach ($files[1] as $file) {
 157                                 dba::insert('term', [
 158                                         'uid' => $message["uid"],
 159                                         'oid' => $itemid,
 160                                         'otype' => TERM_OBJ_POST,
 161                                         'type' => TERM_CATEGORY,
 162                                         'term' => $file
 163                                 ]);
 164                         }
 165                 }
 166         }
 167
 168         /**
 169          * Sorts an item's tags into mentions, hashtags and other tags. Generate personalized URLs by user and modify the
 170          * provided item's body with them.
 171          *
 172          * @param array $item
 173          * @return array
 174          */
 175         public static function populateTagsFromItem(&$item)
 176         {
 177                 $return = [
 178                         'tags' => [],
 179                         'hashtags' => [],
 180                         'mentions' => [],
 181                 ];
 182
 183                 $searchpath = System::baseUrl() . "/search?tag=";
 184
 185                 $taglist = dba::select(
 186                         'term',
 187                         ['type', 'term', 'url'],
 188                         ["`otype` = ? AND `oid` = ? AND `type` IN (?, ?)", TERM_OBJ_POST, $item['id'], TERM_HASHTAG, TERM_MENTION],
 189                         ['order' => ['tid']]
 190                 );
 191
 192                 while ($tag = dba::fetch($taglist)) {
 193                         if ($tag["url"] == "") {
 194                                 $tag["url"] = $searchpath . strtolower($tag["term"]);
 195                         }
 196
 197                         $orig_tag = $tag["url"];
 198
 199                         $tag["url"] = best_link_url($item, $sp, $tag["url"]);
 200
 201                         if ($tag["type"] == TERM_HASHTAG) {
 202                                 if ($orig_tag != $tag["url"]) {
 203                                         $item['body'] = str_replace($orig_tag, $tag["url"], $item['body']);
 204                                 }
 205
 206                                 $return['hashtags'][] = "#<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 207                                 $prefix = "#";
 208                         } elseif ($tag["type"] == TERM_MENTION) {
 209                                 $return['mentions'][] = "@<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 210                                 $prefix = "@";
 211                         }
 212
 213                         $return['tags'][] = $prefix . "<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 214                 }
 215                 dba::close($taglist);
 216
 217                 return $return;
 218         }
 219 }