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 use Friendica\Database\DBM;
  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 tagTextFromItemId($itemid)
  18         {
  19                 $tag_text = '';
  20                 $condition = ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_HASHTAG, TERM_MENTION]];
  21                 $tags = dba::select('term', [], $condition);
  22                 while ($tag = dba::fetch($tags)) {
  23                         if ($tag_text != '') {
  24                                 $tag_text .= ',';
  25                         }
  26
  27                         if ($tag['type'] == 1) {
  28                                 $tag_text .= '#';
  29                         } else {
  30                                 $tag_text .= '@';
  31                         }
  32                         $tag_text .= '[url=' . $tag['url'] . ']' . $tag['term'] . '[/url]';
  33                 }
  34                 return $tag_text;
  35         }
  36
  37         public static function fileTextFromItemId($itemid)
  38         {
  39                 $file_text = '';
  40                 $condition = ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_FILE, TERM_CATEGORY]];
  41                 $tags = dba::select('term', [], $condition);
  42                 while ($tag = dba::fetch($tags)) {
  43                         if ($tag['type'] == TERM_CATEGORY) {
  44                                 $file_text .= '<' . $tag['term'] . '>';
  45                         } else {
  46                                 $file_text .= '[' . $tag['term'] . ']';
  47                         }
  48                 }
  49                 return $file_text;
  50         }
  51
  52         public static function insertFromTagFieldByItemId($itemid, $tags)
  53         {
  54                 $profile_base = System::baseUrl();
  55                 $profile_data = parse_url($profile_base);
  56                 $profile_path = defaults($profile_data, 'path', '');
  57                 $profile_base_friendica = $profile_data['host'] . $profile_path . '/profile/';
  58                 $profile_base_diaspora = $profile_data['host'] . $profile_path . '/u/';
  59
  60                 $fields = ['guid', 'uid', 'id', 'edited', 'deleted', 'created', 'received', 'title', 'body', 'parent'];
  61                 $message = Item::selectFirst($fields, ['id' => $itemid]);
  62                 if (!DBM::is_result($message)) {
  63                         return;
  64                 }
  65
  66                 $message['tag'] = $tags;
  67
  68                 // Clean up all tags
  69                 dba::delete('term', ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_HASHTAG, TERM_MENTION]]);
  70
  71                 if ($message['deleted']) {
  72                         return;
  73                 }
  74
  75                 $taglist = explode(',', $message['tag']);
  76
  77                 $tags_string = '';
  78                 foreach ($taglist as $tag) {
  79                         if ((substr(trim($tag), 0, 1) == '#') || (substr(trim($tag), 0, 1) == '@')) {
  80                                 $tags_string .= ' ' . trim($tag);
  81                         } else {
  82                                 $tags_string .= ' #' . trim($tag);
  83                         }
  84                 }
  85
  86                 $data = ' ' . $message['title'] . ' ' . $message['body'] . ' ' . $tags_string . ' ';
  87
  88                 // ignore anything in a code block
  89                 $data = preg_replace('/\[code\](.*?)\[\/code\]/sm', '', $data);
  90
  91                 $tags = [];
  92
  93                 $pattern = '/\W\#([^\[].*?)[\s\'".,:;\?!\[\]\/]/ism';
  94                 if (preg_match_all($pattern, $data, $matches)) {
  95                         foreach ($matches[1] as $match) {
  96                                 $tags['#' . $match] = '';
  97                         }
  98                 }
  99
 100                 $pattern = '/\W([\#@])\[url\=(.*?)\](.*?)\[\/url\]/ism';
 101                 if (preg_match_all($pattern, $data, $matches, PREG_SET_ORDER)) {
 102                         foreach ($matches as $match) {
 103                                 $tags[$match[1] . trim($match[3], ',.:;[]/\"?!')] = $match[2];
 104                         }
 105                 }
 106
 107                 foreach ($tags as $tag => $link) {
 108                         if (substr(trim($tag), 0, 1) == '#') {
 109                                 // try to ignore #039 or #1 or anything like that
 110                                 if (ctype_digit(substr(trim($tag), 1))) {
 111                                         continue;
 112                                 }
 113
 114                                 // try to ignore html hex escapes, e.g. #x2317
 115                                 if ((substr(trim($tag), 1, 1) == 'x' || substr(trim($tag), 1, 1) == 'X') && ctype_digit(substr(trim($tag), 2))) {
 116                                         continue;
 117                                 }
 118
 119                                 $type = TERM_HASHTAG;
 120                                 $term = substr($tag, 1);
 121                         } elseif (substr(trim($tag), 0, 1) == '@') {
 122                                 $type = TERM_MENTION;
 123                                 $term = substr($tag, 1);
 124                         } else { // This shouldn't happen
 125                                 $type = TERM_HASHTAG;
 126                                 $term = $tag;
 127                         }
 128
 129                         if ($message['uid'] == 0) {
 130                                 $global = true;
 131                                 dba::update('term', ['global' => true], ['otype' => TERM_OBJ_POST, 'guid' => $message['guid']]);
 132                         } else {
 133                                 $global = dba::exists('term', ['uid' => 0, 'otype' => TERM_OBJ_POST, 'guid' => $message['guid']]);
 134                         }
 135
 136                         dba::insert('term', [
 137                                 'uid'      => $message['uid'],
 138                                 'oid'      => $itemid,
 139                                 'otype'    => TERM_OBJ_POST,
 140                                 'type'     => $type,
 141                                 'term'     => $term,
 142                                 'url'      => $link,
 143                                 'guid'     => $message['guid'],
 144                                 'created'  => $message['created'],
 145                                 'received' => $message['received'],
 146                                 'global'   => $global
 147                         ]);
 148
 149                         // Search for mentions
 150                         if ((substr($tag, 0, 1) == '@') && (strpos($link, $profile_base_friendica) || strpos($link, $profile_base_diaspora))) {
 151                                 $users = q("SELECT `uid` FROM `contact` WHERE self AND (`url` = '%s' OR `nurl` = '%s')", $link, $link);
 152                                 foreach ($users AS $user) {
 153                                         if ($user['uid'] == $message['uid']) {
 154                                                 /// @todo This function is called frim Item::update - so we mustn't call that function here
 155                                                 dba::update('item', ['mention' => true], ['id' => $itemid]);
 156                                                 dba::update('thread', ['mention' => true], ['iid' => $message['parent']]);
 157                                         }
 158                                 }
 159                         }
 160                 }
 161         }
 162
 163         /**
 164          * @param integer $itemid item id
 165          * @return void
 166          */
 167         public static function insertFromFileFieldByItemId($itemid, $files)
 168         {
 169                 $message = Item::selectFirst(['uid', 'deleted'], ['id' => $itemid]);
 170                 if (!DBM::is_result($message)) {
 171                         return;
 172                 }
 173
 174                 // Clean up all tags
 175                 dba::delete('term', ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_FILE, TERM_CATEGORY]]);
 176
 177                 if ($message["deleted"]) {
 178                         return;
 179                 }
 180
 181                 $message['file'] = $files;
 182
 183                 if (preg_match_all("/\[(.*?)\]/ism", $message["file"], $files)) {
 184                         foreach ($files[1] as $file) {
 185                                 dba::insert('term', [
 186                                         'uid' => $message["uid"],
 187                                         'oid' => $itemid,
 188                                         'otype' => TERM_OBJ_POST,
 189                                         'type' => TERM_FILE,
 190                                         'term' => $file
 191                                 ]);
 192                         }
 193                 }
 194
 195                 if (preg_match_all("/\<(.*?)\>/ism", $message["file"], $files)) {
 196                         foreach ($files[1] as $file) {
 197                                 dba::insert('term', [
 198                                         'uid' => $message["uid"],
 199                                         'oid' => $itemid,
 200                                         'otype' => TERM_OBJ_POST,
 201                                         'type' => TERM_CATEGORY,
 202                                         'term' => $file
 203                                 ]);
 204                         }
 205                 }
 206         }
 207
 208         /**
 209          * Sorts an item's tags into mentions, hashtags and other tags. Generate personalized URLs by user and modify the
 210          * provided item's body with them.
 211          *
 212          * @param array $item
 213          * @return array
 214          */
 215         public static function populateTagsFromItem(&$item)
 216         {
 217                 $return = [
 218                         'tags' => [],
 219                         'hashtags' => [],
 220                         'mentions' => [],
 221                 ];
 222
 223                 $searchpath = System::baseUrl() . "/search?tag=";
 224
 225                 $taglist = dba::select(
 226                         'term',
 227                         ['type', 'term', 'url'],
 228                         ["`otype` = ? AND `oid` = ? AND `type` IN (?, ?)", TERM_OBJ_POST, $item['id'], TERM_HASHTAG, TERM_MENTION],
 229                         ['order' => ['tid']]
 230                 );
 231
 232                 while ($tag = dba::fetch($taglist)) {
 233                         if ($tag["url"] == "") {
 234                                 $tag["url"] = $searchpath . $tag["term"];
 235                         }
 236
 237                         $orig_tag = $tag["url"];
 238
 239                         $author = ['uid' => 0, 'id' => $item['author-id'],
 240                                 'network' => $item['author-network'], 'url' => $item['author-link']];
 241                         $tag["url"] = Contact::magicLinkByContact($author, $tag['url']);
 242
 243                         if ($tag["type"] == TERM_HASHTAG) {
 244                                 if ($orig_tag != $tag["url"]) {
 245                                         $item['body'] = str_replace($orig_tag, $tag["url"], $item['body']);
 246                                 }
 247
 248                                 $return['hashtags'][] = "#<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 249                                 $prefix = "#";
 250                         } elseif ($tag["type"] == TERM_MENTION) {
 251                                 $return['mentions'][] = "@<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 252                                 $prefix = "@";
 253                         }
 254
 255                         $return['tags'][] = $prefix . "<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 256                 }
 257                 dba::close($taglist);
 258
 259                 return $return;
 260         }
 261 }