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