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