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 $tag_text;
  36         }
  37
  38         public static function fileTextFromItemId($itemid)
  39         {
  40                 $file_text = '';
  41                 $condition = ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_FILE, TERM_CATEGORY]];
  42                 $tags = dba::select('term', [], $condition);
  43                 while ($tag = dba::fetch($tags)) {
  44                         if ($tag['type'] == TERM_CATEGORY) {
  45                                 $file_text .= '<' . $tag['term'] . '>';
  46                         } else {
  47                                 $file_text .= '[' . $tag['term'] . ']';
  48                         }
  49                 }
  50                 return $file_text;
  51         }
  52
  53         public static function insertFromTagFieldByItemId($itemid, $tags)
  54         {
  55                 $profile_base = System::baseUrl();
  56                 $profile_data = parse_url($profile_base);
  57                 $profile_path = defaults($profile_data, 'path', '');
  58                 $profile_base_friendica = $profile_data['host'] . $profile_path . '/profile/';
  59                 $profile_base_diaspora = $profile_data['host'] . $profile_path . '/u/';
  60
  61                 $fields = ['guid', 'uid', 'id', 'edited', 'deleted', 'created', 'received', 'title', 'body', 'parent'];
  62                 $message = Item::selectFirst($fields, ['id' => $itemid]);
  63                 if (!DBM::is_result($message)) {
  64                         return;
  65                 }
  66
  67                 $message['tag'] = $tags;
  68
  69                 // Clean up all tags
  70                 dba::delete('term', ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_HASHTAG, TERM_MENTION]]);
  71
  72                 if ($message['deleted']) {
  73                         return;
  74                 }
  75
  76                 $taglist = explode(',', $message['tag']);
  77
  78                 $tags_string = '';
  79                 foreach ($taglist as $tag) {
  80                         if ((substr(trim($tag), 0, 1) == '#') || (substr(trim($tag), 0, 1) == '@')) {
  81                                 $tags_string .= ' ' . trim($tag);
  82                         } else {
  83                                 $tags_string .= ' #' . trim($tag);
  84                         }
  85                 }
  86
  87                 $data = ' ' . $message['title'] . ' ' . $message['body'] . ' ' . $tags_string . ' ';
  88
  89                 // ignore anything in a code block
  90                 $data = preg_replace('/\[code\](.*?)\[\/code\]/sm', '', $data);
  91
  92                 $tags = [];
  93
  94                 $pattern = '/\W\#([^\[].*?)[\s\'".,:;\?!\[\]\/]/ism';
  95                 if (preg_match_all($pattern, $data, $matches)) {
  96                         foreach ($matches[1] as $match) {
  97                                 $tags['#' . $match] = '';
  98                         }
  99                 }
 100
 101                 $pattern = '/\W([\#@])\[url\=(.*?)\](.*?)\[\/url\]/ism';
 102                 if (preg_match_all($pattern, $data, $matches, PREG_SET_ORDER)) {
 103                         foreach ($matches as $match) {
 104                                 $tags[$match[1] . trim($match[3], ',.:;[]/\"?!')] = $match[2];
 105                         }
 106                 }
 107
 108                 foreach ($tags as $tag => $link) {
 109                         if (substr(trim($tag), 0, 1) == '#') {
 110                                 // try to ignore #039 or #1 or anything like that
 111                                 if (ctype_digit(substr(trim($tag), 1))) {
 112                                         continue;
 113                                 }
 114
 115                                 // try to ignore html hex escapes, e.g. #x2317
 116                                 if ((substr(trim($tag), 1, 1) == 'x' || substr(trim($tag), 1, 1) == 'X') && ctype_digit(substr(trim($tag), 2))) {
 117                                         continue;
 118                                 }
 119
 120                                 $type = TERM_HASHTAG;
 121                                 $term = substr($tag, 1);
 122                         } elseif (substr(trim($tag), 0, 1) == '@') {
 123                                 $type = TERM_MENTION;
 124                                 $term = substr($tag, 1);
 125                         } else { // This shouldn't happen
 126                                 $type = TERM_HASHTAG;
 127                                 $term = $tag;
 128                         }
 129
 130                         if ($message['uid'] == 0) {
 131                                 $global = true;
 132                                 dba::update('term', ['global' => true], ['otype' => TERM_OBJ_POST, 'guid' => $message['guid']]);
 133                         } else {
 134                                 $global = dba::exists('term', ['uid' => 0, 'otype' => TERM_OBJ_POST, 'guid' => $message['guid']]);
 135                         }
 136
 137                         dba::insert('term', [
 138                                 'uid'      => $message['uid'],
 139                                 'oid'      => $itemid,
 140                                 'otype'    => TERM_OBJ_POST,
 141                                 'type'     => $type,
 142                                 'term'     => $term,
 143                                 'url'      => $link,
 144                                 'guid'     => $message['guid'],
 145                                 'created'  => $message['created'],
 146                                 'received' => $message['received'],
 147                                 'global'   => $global
 148                         ]);
 149
 150                         // Search for mentions
 151                         if ((substr($tag, 0, 1) == '@') && (strpos($link, $profile_base_friendica) || strpos($link, $profile_base_diaspora))) {
 152                                 $users = q("SELECT `uid` FROM `contact` WHERE self AND (`url` = '%s' OR `nurl` = '%s')", $link, $link);
 153                                 foreach ($users AS $user) {
 154                                         if ($user['uid'] == $message['uid']) {
 155                                                 /// @todo This function is called frim Item::update - so we mustn't call that function here
 156                                                 dba::update('item', ['mention' => true], ['id' => $itemid]);
 157                                                 dba::update('thread', ['mention' => true], ['iid' => $message['parent']]);
 158                                         }
 159                                 }
 160                         }
 161                 }
 162         }
 163
 164         /**
 165          * @param integer $itemid item id
 166          * @return void
 167          */
 168         public static function insertFromFileFieldByItemId($itemid, $files)
 169         {
 170                 $message = Item::selectFirst(['uid', 'deleted'], ['id' => $itemid]);
 171                 if (!DBM::is_result($message)) {
 172                         return;
 173                 }
 174
 175                 // Clean up all tags
 176                 dba::delete('term', ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => [TERM_FILE, TERM_CATEGORY]]);
 177
 178                 if ($message["deleted"]) {
 179                         return;
 180                 }
 181
 182                 $message['file'] = $files;
 183
 184                 if (preg_match_all("/\[(.*?)\]/ism", $message["file"], $files)) {
 185                         foreach ($files[1] as $file) {
 186                                 dba::insert('term', [
 187                                         'uid' => $message["uid"],
 188                                         'oid' => $itemid,
 189                                         'otype' => TERM_OBJ_POST,
 190                                         'type' => TERM_FILE,
 191                                         'term' => $file
 192                                 ]);
 193                         }
 194                 }
 195
 196                 if (preg_match_all("/\<(.*?)\>/ism", $message["file"], $files)) {
 197                         foreach ($files[1] as $file) {
 198                                 dba::insert('term', [
 199                                         'uid' => $message["uid"],
 200                                         'oid' => $itemid,
 201                                         'otype' => TERM_OBJ_POST,
 202                                         'type' => TERM_CATEGORY,
 203                                         'term' => $file
 204                                 ]);
 205                         }
 206                 }
 207         }
 208
 209         /**
 210          * Sorts an item's tags into mentions, hashtags and other tags. Generate personalized URLs by user and modify the
 211          * provided item's body with them.
 212          *
 213          * @param array $item
 214          * @return array
 215          */
 216         public static function populateTagsFromItem(&$item)
 217         {
 218                 $return = [
 219                         'tags' => [],
 220                         'hashtags' => [],
 221                         'mentions' => [],
 222                 ];
 223
 224                 $searchpath = System::baseUrl() . "/search?tag=";
 225
 226                 $taglist = dba::select(
 227                         'term',
 228                         ['type', 'term', 'url'],
 229                         ["`otype` = ? AND `oid` = ? AND `type` IN (?, ?)", TERM_OBJ_POST, $item['id'], TERM_HASHTAG, TERM_MENTION],
 230                         ['order' => ['tid']]
 231                 );
 232
 233                 while ($tag = dba::fetch($taglist)) {
 234                         if ($tag["url"] == "") {
 235                                 $tag["url"] = $searchpath . $tag["term"];
 236                         }
 237
 238                         $orig_tag = $tag["url"];
 239
 240                         $author = ['uid' => 0, 'id' => $item['author-id'],
 241                                 'network' => $item['author-network'], 'url' => $item['author-link']];
 242                         $tag["url"] = Contact::magicLinkByContact($author, $tag['url']);
 243
 244                         if ($tag["type"] == TERM_HASHTAG) {
 245                                 if ($orig_tag != $tag["url"]) {
 246                                         $item['body'] = str_replace($orig_tag, $tag["url"], $item['body']);
 247                                 }
 248
 249                                 $return['hashtags'][] = "#<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 250                                 $prefix = "#";
 251                         } elseif ($tag["type"] == TERM_MENTION) {
 252                                 $return['mentions'][] = "@<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 253                                 $prefix = "@";
 254                         }
 255
 256                         $return['tags'][] = $prefix . "<a href=\"" . $tag["url"] . "\" target=\"_blank\">" . $tag["term"] . "</a>";
 257                 }
 258                 dba::close($taglist);
 259
 260                 return $return;
 261         }
 262 }