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\DBA;
   9
  10 require_once 'boot.php';
  11 require_once 'include/conversation.php';
  12 require_once 'include/dba.php';
  13
  14 class Term
  15 {
  16         public static function tagTextFromItemId($itemid)
  17         {
  18                 $tag_text = '';
  19                 $condition = ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_HASHTAG, TERM_MENTION]];
  20                 $tags = DBA::select('term', [], $condition);
  21                 while ($tag = DBA::fetch($tags)) {
  22                         if ($tag_text != '') {
  23                                 $tag_text .= ',';
  24                         }
  25
  26                         if ($tag['type'] == 1) {
  27                                 $tag_text .= '#';
  28                         } else {
  29                                 $tag_text .= '@';
  30                         }
  31                         $tag_text .= '[url=' . $tag['url'] . ']' . $tag['term'] . '[/url]';
  32                 }
  33                 return $tag_text;
  34         }
  35
  36         public static function fileTextFromItemId($itemid)
  37         {
  38                 $file_text = '';
  39                 $condition = ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_FILE, TERM_CATEGORY]];
  40                 $tags = DBA::select('term', [], $condition);
  41                 while ($tag = DBA::fetch($tags)) {
  42                         if ($tag['type'] == TERM_CATEGORY) {
  43                                 $file_text .= '<' . $tag['term'] . '>';
  44                         } else {
  45                                 $file_text .= '[' . $tag['term'] . ']';
  46                         }
  47                 }
  48                 return $file_text;
  49         }
  50
  51         public static function insertFromTagFieldByItemId($itemid, $tags)
  52         {
  53                 $profile_base = System::baseUrl();
  54                 $profile_data = parse_url($profile_base);
  55                 $profile_path = defaults($profile_data, 'path', '');
  56                 $profile_base_friendica = $profile_data['host'] . $profile_path . '/profile/';
  57                 $profile_base_diaspora = $profile_data['host'] . $profile_path . '/u/';
  58
  59                 $fields = ['guid', 'uid', 'id', 'edited', 'deleted', 'created', 'received', 'title', 'body', 'parent'];
  60                 $message = Item::selectFirst($fields, ['id' => $itemid]);
  61                 if (!DBA::is_result($message)) {
  62                         return;
  63                 }
  64
  65                 $message['tag'] = $tags;
  66
  67                 // Clean up all tags
  68                 DBA::delete('term', ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_HASHTAG, TERM_MENTION]]);
  69
  70                 if ($message['deleted']) {
  71                         return;
  72                 }
  73
  74                 $taglist = explode(',', $message['tag']);
  75
  76                 $tags_string = '';
  77                 foreach ($taglist as $tag) {
  78                         if ((substr(trim($tag), 0, 1) == '#') || (substr(trim($tag), 0, 1) == '@')) {
  79                                 $tags_string .= ' ' . trim($tag);
  80                         } else {
  81                                 $tags_string .= ' #' . trim($tag);
  82                         }
  83                 }
  84
  85                 $data = ' ' . $message['title'] . ' ' . $message['body'] . ' ' . $tags_string . ' ';
  86
  87                 // ignore anything in a code block
  88                 $data = preg_replace('/\[code\](.*?)\[\/code\]/sm', '', $data);
  89
  90                 $tags = [];
  91
  92                 $pattern = '/\W\#([^\[].*?)[\s\'".,:;\?!\[\]\/]/ism';
  93                 if (preg_match_all($pattern, $data, $matches)) {
  94                         foreach ($matches[1] as $match) {
  95                                 $tags['#' . $match] = '';
  96                         }
  97                 }
  98
  99                 $pattern = '/\W([\#@])\[url\=(.*?)\](.*?)\[\/url\]/ism';
 100                 if (preg_match_all($pattern, $data, $matches, PREG_SET_ORDER)) {
 101                         foreach ($matches as $match) {
 102                                 $tags[$match[1] . trim($match[3], ',.:;[]/\"?!')] = $match[2];
 103                         }
 104                 }
 105
 106                 foreach ($tags as $tag => $link) {
 107                         if (substr(trim($tag), 0, 1) == '#') {
 108                                 // try to ignore #039 or #1 or anything like that
 109                                 if (ctype_digit(substr(trim($tag), 1))) {
 110                                         continue;
 111                                 }
 112
 113                                 // try to ignore html hex escapes, e.g. #x2317
 114                                 if ((substr(trim($tag), 1, 1) == 'x' || substr(trim($tag), 1, 1) == 'X') && ctype_digit(substr(trim($tag), 2))) {
 115                                         continue;
 116                                 }
 117
 118                                 $type = TERM_HASHTAG;
 119                                 $term = substr($tag, 1);
 120                         } elseif (substr(trim($tag), 0, 1) == '@') {
 121                                 $type = TERM_MENTION;
 122                                 $term = substr($tag, 1);
 123                         } else { // This shouldn't happen
 124                                 $type = TERM_HASHTAG;
 125                                 $term = $tag;
 126                         }
 127
 128                         if ($message['uid'] == 0) {
 129                                 $global = true;
 130                                 DBA::update('term', ['global' => true], ['otype' => TERM_OBJ_POST, 'guid' => $message['guid']]);
 131                         } else {
 132                                 $global = DBA::exists('term', ['uid' => 0, 'otype' => TERM_OBJ_POST, 'guid' => $message['guid']]);
 133                         }
 134
 135                         DBA::insert('term', [
 136                                 'uid'      => $message['uid'],
 137                                 'oid'      => $itemid,
 138                                 'otype'    => TERM_OBJ_POST,
 139                                 'type'     => $type,
 140                                 'term'     => $term,
 141                                 'url'      => $link,
 142                                 'guid'     => $message['guid'],
 143                                 'created'  => $message['created'],
 144                                 'received' => $message['received'],
 145                                 'global'   => $global
 146                         ]);
 147
 148                         // Search for mentions
 149                         if ((substr($tag, 0, 1) == '@') && (strpos($link, $profile_base_friendica) || strpos($link, $profile_base_diaspora))) {
 150                                 $users = q("SELECT `uid` FROM `contact` WHERE self AND (`url` = '%s' OR `nurl` = '%s')", $link, $link);
 151                                 foreach ($users AS $user) {
 152                                         if ($user['uid'] == $message['uid']) {
 153                                                 /// @todo This function is called frim Item::update - so we mustn't call that function here
 154                                                 DBA::update('item', ['mention' => true], ['id' => $itemid]);
 155                                                 DBA::update('thread', ['mention' => true], ['iid' => $message['parent']]);
 156                                         }
 157                                 }
 158                         }
 159                 }
 160         }
 161
 162         /**
 163          * @param integer $itemid item id
 164          * @return void
 165          */
 166         public static function insertFromFileFieldByItemId($itemid, $files)
 167         {
 168                 $message = Item::selectFirst(['uid', 'deleted'], ['id' => $itemid]);
 169                 if (!DBA::is_result($message)) {
 170                         return;
 171                 }
 172
 173                 // Clean up all tags
 174                 DBA::delete('term', ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_FILE, TERM_CATEGORY]]);
 175
 176                 if ($message["deleted"]) {
 177                         return;
 178                 }
 179
 180                 $message['file'] = $files;
 181
 182                 if (preg_match_all("/\[(.*?)\]/ism", $message["file"], $files)) {
 183                         foreach ($files[1] as $file) {
 184                                 DBA::insert('term', [
 185                                         'uid' => $message["uid"],
 186                                         'oid' => $itemid,
 187                                         'otype' => TERM_OBJ_POST,
 188                                         'type' => TERM_FILE,
 189                                         'term' => $file
 190                                 ]);
 191                         }
 192                 }
 193
 194                 if (preg_match_all("/\<(.*?)\>/ism", $message["file"], $files)) {
 195                         foreach ($files[1] as $file) {
 196                                 DBA::insert('term', [
 197                                         'uid' => $message["uid"],
 198                                         'oid' => $itemid,
 199                                         'otype' => TERM_OBJ_POST,
 200                                         'type' => TERM_CATEGORY,
 201                                         'term' => $file
 202                                 ]);
 203                         }
 204                 }
 205         }
 206
 207         /**
 208          * Sorts an item's tags into mentions, hashtags and other tags. Generate personalized URLs by user and modify the
 209          * provided item's body with them.
 210          *
 211          * @param array $item
 212          * @return array
 213          */
 214         public static function populateTagsFromItem(&$item)
 215         {
 216                 $return = [
 217                         'tags' => [],
 218                         'hashtags' => [],
 219                         'mentions' => [],
 220                 ];
 221
 222                 $searchpath = System::baseUrl() . "/search?tag=";
 223
 224                 $taglist = DBA::select(
 225                         'term',
 226                         ['type', 'term', 'url'],
 227                         ["`otype` = ? AND `oid` = ? AND `type` IN (?, ?)", TERM_OBJ_POST, $item['id'], TERM_HASHTAG, TERM_MENTION],
 228                         ['order' => ['tid']]
 229                 );
 230
 231                 while ($tag = DBA::fetch($taglist)) {
 232                         if ($tag["url"] == "") {
 233                                 $tag["url"] = $searchpath . $tag["term"];
 234                         }
 235
 236                         $orig_tag = $tag["url"];
 237
 238                         $author = ['uid' => 0, 'id' => $item['author-id'],
 239                                 'network' => $item['author-network'], 'url' => $item['author-link']];
 240                         $tag["url"] = Contact::magicLinkByContact($author, $tag['url']);
 241
 242                         if ($tag["type"] == TERM_HASHTAG) {
 243                                 if ($orig_tag != $tag["url"]) {
 244                                         $item['body'] = str_replace($orig_tag, $tag["url"], $item['body']);
 245                                 }
 246
 247                                 $return['hashtags'][] = "#<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 248                                 $prefix = "#";
 249                         } elseif ($tag["type"] == TERM_MENTION) {
 250                                 $return['mentions'][] = "@<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 251                                 $prefix = "@";
 252                         }
 253
 254                         $return['tags'][] = $prefix . "<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 255                 }
 256                 DBA::close($taglist);
 257
 258                 return $return;
 259         }
 260 }