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 tagTextFromItemId($itemid)
  19         {
  20                 $tag_text = '';
  21                 $condition = ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_HASHTAG, TERM_MENTION]];
  22                 $tags = dba::select('term', [], $condition);
  23                 while ($tag = dba::fetch($tags)) {
  24                         if ($tag_text != '') {
  25                                 $tag_text .= ',';
  26                         }
  27
  28                         if ($tag['type'] == 1) {
  29                                 $tag_text .= '#';
  30                         } else {
  31                                 $tag_text .= '@';
  32                         }
  33                         $tag_text .= '[url=' . $tag['url'] . ']' . $tag['term'] . '[/url]';
  34                 }
  35                 return $tag_text;
  36         }
  37
  38         public static function insertFromTagFieldByItemId($itemid)
  39         {
  40                 $profile_base = System::baseUrl();
  41                 $profile_data = parse_url($profile_base);
  42                 $profile_path = defaults($profile_data, 'path', '');
  43                 $profile_base_friendica = $profile_data['host'] . $profile_path . '/profile/';
  44                 $profile_base_diaspora = $profile_data['host'] . $profile_path . '/u/';
  45
  46                 $fields = ['guid', 'uid', 'id', 'edited', 'deleted', 'created', 'received', 'title', 'body', 'tag', 'parent'];
  47                 $message = Item::selectFirst($fields, ['id' => $itemid]);
  48                 if (!DBM::is_result($message)) {
  49                         return;
  50                 }
  51
  52                 // Clean up all tags
  53                 dba::delete('term', ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_HASHTAG, TERM_MENTION]]);
  54
  55                 if ($message['deleted']) {
  56                         return;
  57                 }
  58
  59                 $taglist = explode(',', $message['tag']);
  60
  61                 $tags_string = '';
  62                 foreach ($taglist as $tag) {
  63                         if ((substr(trim($tag), 0, 1) == '#') || (substr(trim($tag), 0, 1) == '@')) {
  64                                 $tags_string .= ' ' . trim($tag);
  65                         } else {
  66                                 $tags_string .= ' #' . trim($tag);
  67                         }
  68                 }
  69
  70                 $data = ' ' . $message['title'] . ' ' . $message['body'] . ' ' . $tags_string . ' ';
  71
  72                 // ignore anything in a code block
  73                 $data = preg_replace('/\[code\](.*?)\[\/code\]/sm', '', $data);
  74
  75                 $tags = [];
  76
  77                 $pattern = '/\W\#([^\[].*?)[\s\'".,:;\?!\[\]\/]/ism';
  78                 if (preg_match_all($pattern, $data, $matches)) {
  79                         foreach ($matches[1] as $match) {
  80                                 $tags['#' . $match] = '';
  81                         }
  82                 }
  83
  84                 $pattern = '/\W([\#@])\[url\=(.*?)\](.*?)\[\/url\]/ism';
  85                 if (preg_match_all($pattern, $data, $matches, PREG_SET_ORDER)) {
  86                         foreach ($matches as $match) {
  87                                 $tags[$match[1] . trim($match[3], ',.:;[]/\"?!')] = $match[2];
  88                         }
  89                 }
  90
  91                 foreach ($tags as $tag => $link) {
  92                         if (substr(trim($tag), 0, 1) == '#') {
  93                                 // try to ignore #039 or #1 or anything like that
  94                                 if (ctype_digit(substr(trim($tag), 1))) {
  95                                         continue;
  96                                 }
  97
  98                                 // try to ignore html hex escapes, e.g. #x2317
  99                                 if ((substr(trim($tag), 1, 1) == 'x' || substr(trim($tag), 1, 1) == 'X') && ctype_digit(substr(trim($tag), 2))) {
 100                                         continue;
 101                                 }
 102
 103                                 $type = TERM_HASHTAG;
 104                                 $term = substr($tag, 1);
 105                         } elseif (substr(trim($tag), 0, 1) == '@') {
 106                                 $type = TERM_MENTION;
 107                                 $term = substr($tag, 1);
 108                         } else { // This shouldn't happen
 109                                 $type = TERM_HASHTAG;
 110                                 $term = $tag;
 111                         }
 112
 113                         if ($message['uid'] == 0) {
 114                                 $global = true;
 115                                 dba::update('term', ['global' => true], ['otype' => TERM_OBJ_POST, 'guid' => $message['guid']]);
 116                         } else {
 117                                 $global = dba::exists('term', ['uid' => 0, 'otype' => TERM_OBJ_POST, 'guid' => $message['guid']]);
 118                         }
 119
 120                         dba::insert('term', [
 121                                 'uid'      => $message['uid'],
 122                                 'oid'      => $itemid,
 123                                 'otype'    => TERM_OBJ_POST,
 124                                 'type'     => $type,
 125                                 'term'     => $term,
 126                                 'url'      => $link,
 127                                 'guid'     => $message['guid'],
 128                                 'created'  => $message['created'],
 129                                 'received' => $message['received'],
 130                                 'global'   => $global
 131                         ]);
 132
 133                         // Search for mentions
 134                         if ((substr($tag, 0, 1) == '@') && (strpos($link, $profile_base_friendica) || strpos($link, $profile_base_diaspora))) {
 135                                 $users = q("SELECT `uid` FROM `contact` WHERE self AND (`url` = '%s' OR `nurl` = '%s')", $link, $link);
 136                                 foreach ($users AS $user) {
 137                                         if ($user['uid'] == $message['uid']) {
 138                                                 /// @todo This function is called frim Item::update - so we mustn't call that function here
 139                                                 dba::update('item', ['mention' => true], ['id' => $itemid]);
 140                                                 dba::update('thread', ['mention' => true], ['iid' => $message['parent']]);
 141                                         }
 142                                 }
 143                         }
 144                 }
 145         }
 146
 147         /**
 148          * @param integer $itemid item id
 149          * @return void
 150          */
 151         public static function insertFromFileFieldByItemId($itemid)
 152         {
 153                 $message = Item::selectFirst(['uid', 'deleted', 'file'], ['id' => $itemid]);
 154                 if (!DBM::is_result($message)) {
 155                         return;
 156                 }
 157
 158                 // Clean up all tags
 159                 dba::delete('term', ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_FILE, TERM_CATEGORY]]);
 160
 161                 if ($message["deleted"]) {
 162                         return;
 163                 }
 164
 165                 if (preg_match_all("/\[(.*?)\]/ism", $message["file"], $files)) {
 166                         foreach ($files[1] as $file) {
 167                                 dba::insert('term', [
 168                                         'uid' => $message["uid"],
 169                                         'oid' => $itemid,
 170                                         'otype' => TERM_OBJ_POST,
 171                                         'type' => TERM_FILE,
 172                                         'term' => $file
 173                                 ]);
 174                         }
 175                 }
 176
 177                 if (preg_match_all("/\<(.*?)\>/ism", $message["file"], $files)) {
 178                         foreach ($files[1] as $file) {
 179                                 dba::insert('term', [
 180                                         'uid' => $message["uid"],
 181                                         'oid' => $itemid,
 182                                         'otype' => TERM_OBJ_POST,
 183                                         'type' => TERM_CATEGORY,
 184                                         'term' => $file
 185                                 ]);
 186                         }
 187                 }
 188         }
 189
 190         /**
 191          * Sorts an item's tags into mentions, hashtags and other tags. Generate personalized URLs by user and modify the
 192          * provided item's body with them.
 193          *
 194          * @param array $item
 195          * @return array
 196          */
 197         public static function populateTagsFromItem(&$item)
 198         {
 199                 $return = [
 200                         'tags' => [],
 201                         'hashtags' => [],
 202                         'mentions' => [],
 203                 ];
 204
 205                 $searchpath = System::baseUrl() . "/search?tag=";
 206
 207                 $taglist = dba::select(
 208                         'term',
 209                         ['type', 'term', 'url'],
 210                         ["`otype` = ? AND `oid` = ? AND `type` IN (?, ?)", TERM_OBJ_POST, $item['id'], TERM_HASHTAG, TERM_MENTION],
 211                         ['order' => ['tid']]
 212                 );
 213
 214                 while ($tag = dba::fetch($taglist)) {
 215                         if ($tag["url"] == "") {
 216                                 $tag["url"] = $searchpath . $tag["term"];
 217                         }
 218
 219                         $orig_tag = $tag["url"];
 220
 221                         $tag["url"] = Contact::magicLinkById($item['author-id'], $tag['url']);
 222
 223                         if ($tag["type"] == TERM_HASHTAG) {
 224                                 if ($orig_tag != $tag["url"]) {
 225                                         $item['body'] = str_replace($orig_tag, $tag["url"], $item['body']);
 226                                 }
 227
 228                                 $return['hashtags'][] = "#<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 229                                 $prefix = "#";
 230                         } elseif ($tag["type"] == TERM_MENTION) {
 231                                 $return['mentions'][] = "@<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 232                                 $prefix = "@";
 233                         }
 234
 235                         $return['tags'][] = $prefix . "<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 236                 }
 237                 dba::close($taglist);
 238
 239                 return $return;
 240         }
 241 }