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 Friendica\Model\Item;
  10 use dba;
  11
  12 require_once 'boot.php';
  13 require_once 'include/conversation.php';
  14 require_once 'include/dba.php';
  15
  16 class Term
  17 {
  18         public static function insertFromTagFieldByItemId($itemid)
  19         {
  20                 $profile_base = System::baseUrl();
  21                 $profile_data = parse_url($profile_base);
  22                 $profile_path = defaults($profile_data, 'path', '');
  23                 $profile_base_friendica = $profile_data['host'] . $profile_path . '/profile/';
  24                 $profile_base_diaspora = $profile_data['host'] . $profile_path . '/u/';
  25
  26                 $fields = ['guid', 'uid', 'id', 'edited', 'deleted', 'created', 'received', 'title', 'body', 'tag', 'parent'];
  27                 $message = dba::selectFirst('item', $fields, ['id' => $itemid]);
  28                 if (!DBM::is_result($message)) {
  29                         return;
  30                 }
  31
  32                 // Clean up all tags
  33                 dba::delete('term', ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_HASHTAG, TERM_MENTION]]);
  34
  35                 if ($message['deleted']) {
  36                         return;
  37                 }
  38
  39                 $taglist = explode(',', $message['tag']);
  40
  41                 $tags_string = '';
  42                 foreach ($taglist as $tag) {
  43                         if ((substr(trim($tag), 0, 1) == '#') || (substr(trim($tag), 0, 1) == '@')) {
  44                                 $tags_string .= ' ' . trim($tag);
  45                         } else {
  46                                 $tags_string .= ' #' . trim($tag);
  47                         }
  48                 }
  49
  50                 $data = ' ' . $message['title'] . ' ' . $message['body'] . ' ' . $tags_string . ' ';
  51
  52                 // ignore anything in a code block
  53                 $data = preg_replace('/\[code\](.*?)\[\/code\]/sm', '', $data);
  54
  55                 $tags = [];
  56
  57                 $pattern = '/\W\#([^\[].*?)[\s\'".,:;\?!\[\]\/]/ism';
  58                 if (preg_match_all($pattern, $data, $matches)) {
  59                         foreach ($matches[1] as $match) {
  60                                 $tags['#' . strtolower($match)] = '';
  61                         }
  62                 }
  63
  64                 $pattern = '/\W([\#@])\[url\=(.*?)\](.*?)\[\/url\]/ism';
  65                 if (preg_match_all($pattern, $data, $matches, PREG_SET_ORDER)) {
  66                         foreach ($matches as $match) {
  67                                 $tags[$match[1] . strtolower(trim($match[3], ',.:;[]/\"?!'))] = $match[2];
  68                         }
  69                 }
  70
  71                 foreach ($tags as $tag => $link) {
  72                         if (substr(trim($tag), 0, 1) == '#') {
  73                                 // try to ignore #039 or #1 or anything like that
  74                                 if (ctype_digit(substr(trim($tag), 1))) {
  75                                         continue;
  76                                 }
  77
  78                                 // try to ignore html hex escapes, e.g. #x2317
  79                                 if ((substr(trim($tag), 1, 1) == 'x' || substr(trim($tag), 1, 1) == 'X') && ctype_digit(substr(trim($tag), 2))) {
  80                                         continue;
  81                                 }
  82
  83                                 $type = TERM_HASHTAG;
  84                                 $term = substr($tag, 1);
  85                         } elseif (substr(trim($tag), 0, 1) == '@') {
  86                                 $type = TERM_MENTION;
  87                                 $term = substr($tag, 1);
  88                         } else { // This shouldn't happen
  89                                 $type = TERM_HASHTAG;
  90                                 $term = $tag;
  91                         }
  92
  93                         if ($message['uid'] == 0) {
  94                                 $global = true;
  95                                 dba::update('term', ['global' => true], ['otype' => TERM_OBJ_POST, 'guid' => $message['guid']]);
  96                         } else {
  97                                 $global = dba::exists('term', ['uid' => 0, 'otype' => TERM_OBJ_POST, 'guid' => $message['guid']]);
  98                         }
  99
 100                         dba::insert('term', [
 101                                 'uid'      => $message['uid'],
 102                                 'oid'      => $itemid,
 103                                 'otype'    => TERM_OBJ_POST,
 104                                 'type'     => $type,
 105                                 'term'     => $term,
 106                                 'url'      => $link,
 107                                 'guid'     => $message['guid'],
 108                                 'created'  => $message['created'],
 109                                 'received' => $message['received'],
 110                                 'global'   => $global
 111                         ]);
 112
 113                         // Search for mentions
 114                         if ((substr($tag, 0, 1) == '@') && (strpos($link, $profile_base_friendica) || strpos($link, $profile_base_diaspora))) {
 115                                 $users = q("SELECT `uid` FROM `contact` WHERE self AND (`url` = '%s' OR `nurl` = '%s')", $link, $link);
 116                                 foreach ($users AS $user) {
 117                                         if ($user['uid'] == $message['uid']) {
 118                                                 Item::update(['mention' => true], ['id' => $itemid]);
 119                                                 dba::update('thread', ['mention' => true], ['iid' => $message['parent']]);
 120                                         }
 121                                 }
 122                         }
 123                 }
 124         }
 125
 126         /**
 127          * @param integer $itemid item id
 128          * @return void
 129          */
 130         public static function insertFromFileFieldByItemId($itemid)
 131         {
 132                 $message = dba::selectFirst('item', ['uid', 'deleted', 'file'], ['id' => $itemid]);
 133                 if (!DBM::is_result($message)) {
 134                         return;
 135                 }
 136
 137                 // Clean up all tags
 138                 dba::delete('term', ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_FILE, TERM_CATEGORY]]);
 139
 140                 if ($message["deleted"]) {
 141                         return;
 142                 }
 143
 144                 if (preg_match_all("/\[(.*?)\]/ism", $message["file"], $files)) {
 145                         foreach ($files[1] as $file) {
 146                                 dba::insert('term', [
 147                                         'uid' => $message["uid"],
 148                                         'oid' => $itemid,
 149                                         'otype' => TERM_OBJ_POST,
 150                                         'type' => TERM_FILE,
 151                                         'term' => $file
 152                                 ]);
 153                         }
 154                 }
 155
 156                 if (preg_match_all("/\<(.*?)\>/ism", $message["file"], $files)) {
 157                         foreach ($files[1] as $file) {
 158                                 dba::insert('term', [
 159                                         'uid' => $message["uid"],
 160                                         'oid' => $itemid,
 161                                         'otype' => TERM_OBJ_POST,
 162                                         'type' => TERM_CATEGORY,
 163                                         'term' => $file
 164                                 ]);
 165                         }
 166                 }
 167         }
 168
 169         /**
 170          * Sorts an item's tags into mentions, hashtags and other tags. Generate personalized URLs by user and modify the
 171          * provided item's body with them.
 172          *
 173          * @param array $item
 174          * @return array
 175          */
 176         public static function populateTagsFromItem(&$item)
 177         {
 178                 $return = [
 179                         'tags' => [],
 180                         'hashtags' => [],
 181                         'mentions' => [],
 182                 ];
 183
 184                 $searchpath = System::baseUrl() . "/search?tag=";
 185
 186                 $taglist = dba::select(
 187                         'term',
 188                         ['type', 'term', 'url'],
 189                         ["`otype` = ? AND `oid` = ? AND `type` IN (?, ?)", TERM_OBJ_POST, $item['id'], TERM_HASHTAG, TERM_MENTION],
 190                         ['order' => ['tid']]
 191                 );
 192
 193                 while ($tag = dba::fetch($taglist)) {
 194                         if ($tag["url"] == "") {
 195                                 $tag["url"] = $searchpath . strtolower($tag["term"]);
 196                         }
 197
 198                         $orig_tag = $tag["url"];
 199
 200                         $tag["url"] = Contact::magicLinkById($item['author-id'], $tag['url']);
 201
 202                         if ($tag["type"] == TERM_HASHTAG) {
 203                                 if ($orig_tag != $tag["url"]) {
 204                                         $item['body'] = str_replace($orig_tag, $tag["url"], $item['body']);
 205                                 }
 206
 207                                 $return['hashtags'][] = "#<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 208                                 $prefix = "#";
 209                         } elseif ($tag["type"] == TERM_MENTION) {
 210                                 $return['mentions'][] = "@<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 211                                 $prefix = "@";
 212                         }
 213
 214                         $return['tags'][] = $prefix . "<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 215                 }
 216                 dba::close($taglist);
 217
 218                 return $return;
 219         }
 220 }