src/Model/ItemContent.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2020, Friendica
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Model;
  23
  24 use Friendica\Content\Text;
  25 use Friendica\Content\Text\BBCode;
  26 use Friendica\Core\Protocol;
  27 use Friendica\Database\DBA;
  28 use Friendica\DI;
  29
  30 class ItemContent
  31 {
  32         public static function getURIIdListBySearch(string $search, int $uid = 0, int $start = 0, int $limit = 100)
  33         {
  34                 $condition = ["`uri-id` IN (SELECT `uri-id` FROM `item-content` WHERE MATCH (`title`, `content-warning`, `body`) AGAINST (? IN BOOLEAN MODE))
  35                         AND (NOT `private` OR (`private` AND `uid` = ?))", $search, $uid];
  36                 $params = [
  37                         'order' => ['uri-id' => true],
  38                         'group_by' => ['uri-id'],
  39                         'limit' => [$start, $limit]
  40                 ];
  41
  42                 $tags = DBA::select('item', ['uri-id'], $condition, $params);
  43
  44                 $uriids = [];
  45                 while ($tag = DBA::fetch($tags)) {
  46                         $uriids[] = $tag['uri-id'];
  47                 }
  48                 DBA::close($tags);
  49
  50                 return $uriids;
  51         }
  52
  53         public static function countBySearch(string $search, int $uid = 0)
  54         {
  55                 $condition = ["`uri-id` IN (SELECT `uri-id` FROM `item-content` WHERE MATCH (`title`, `content-warning`, `body`) AGAINST (? IN BOOLEAN MODE))
  56                         AND (NOT `private` OR (`private` AND `uid` = ?))", $search, $uid];
  57                 return DBA::count('item', $condition);
  58         }
  59
  60         /**
  61          * Convert a message into plaintext for connectors to other networks
  62          *
  63          * @param array  $item           The message array that is about to be posted
  64          * @param int    $limit          The maximum number of characters when posting to that network
  65          * @param bool   $includedlinks  Has an attached link to be included into the message?
  66          * @param int    $htmlmode       This controls the behavior of the BBCode conversion
  67          * @param string $target_network Name of the network where the post should go to.
  68          *
  69          * @return array Same array structure than \Friendica\Content\Text\BBCode::getAttachedData
  70          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  71          * @see   \Friendica\Content\Text\BBCode::getAttachedData
  72          *
  73          */
  74         public static function getPlaintextPost($item, $limit = 0, $includedlinks = false, $htmlmode = BBCode::API, $target_network = '')
  75         {
  76                 // Remove hashtags
  77                 $URLSearchString = '^\[\]';
  78                 $body = preg_replace("/([#@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $item['body']);
  79
  80                 // Add an URL element if the text contains a raw link
  81                 $body = preg_replace('/([^\]\=\'"]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism',
  82                         '$1[url]$2[/url]', $body);
  83
  84                 // Remove the abstract
  85                 $body = Text\BBCode::stripAbstract($body);
  86
  87                 // At first look at data that is attached via "type-..." stuff
  88                 // This will hopefully replaced with a dedicated bbcode later
  89                 //$post = self::getAttachedData($b['body']);
  90                 $post = Text\BBCode::getAttachedData($body, $item);
  91
  92                 if (($item['title'] != '') && ($post['text'] != '')) {
  93                         $post['text'] = trim($item['title'] . "\n\n" . $post['text']);
  94                 } elseif ($item['title'] != '') {
  95                         $post['text'] = trim($item['title']);
  96                 }
  97
  98                 $abstract = '';
  99
 100                 // Fetch the abstract from the given target network
 101                 if ($target_network != '') {
 102                         $default_abstract = Text\BBCode::getAbstract($item['body']);
 103                         $abstract = Text\BBCode::getAbstract($item['body'], $target_network);
 104
 105                         // If we post to a network with no limit we only fetch
 106                         // an abstract exactly for this network
 107                         if (($limit == 0) && ($abstract == $default_abstract)) {
 108                                 $abstract = '';
 109                         }
 110                 } else {// Try to guess the correct target network
 111                         switch ($htmlmode) {
 112                                 case BBCode::TWITTER:
 113                                         $abstract = Text\BBCode::getAbstract($item['body'], Protocol::TWITTER);
 114                                         break;
 115
 116                                 case BBCode::OSTATUS:
 117                                         $abstract = Text\BBCode::getAbstract($item['body'], Protocol::STATUSNET);
 118                                         break;
 119
 120                                 default: // We don't know the exact target.
 121                                         // We fetch an abstract since there is a posting limit.
 122                                         if ($limit > 0) {
 123                                                 $abstract = Text\BBCode::getAbstract($item['body']);
 124                                         }
 125                         }
 126                 }
 127
 128                 if ($abstract != '') {
 129                         $post['text'] = $abstract;
 130
 131                         if ($post['type'] == 'text') {
 132                                 $post['type'] = 'link';
 133                                 $post['url'] = $item['plink'];
 134                         }
 135                 }
 136
 137                 $html = Text\BBCode::convert($post['text'] . ($post['after'] ?? ''), false, $htmlmode);
 138                 $msg = Text\HTML::toPlaintext($html, 0, true);
 139                 $msg = trim(html_entity_decode($msg, ENT_QUOTES, 'UTF-8'));
 140
 141                 $link = '';
 142                 if ($includedlinks) {
 143                         if ($post['type'] == 'link') {
 144                                 $link = $post['url'];
 145                         } elseif ($post['type'] == 'text') {
 146                                 $link = $post['url'] ?? '';
 147                         } elseif ($post['type'] == 'video') {
 148                                 $link = $post['url'];
 149                         } elseif ($post['type'] == 'photo') {
 150                                 $link = $post['image'];
 151                         }
 152
 153                         if (($msg == '') && isset($post['title'])) {
 154                                 $msg = trim($post['title']);
 155                         }
 156
 157                         if (($msg == '') && isset($post['description'])) {
 158                                 $msg = trim($post['description']);
 159                         }
 160
 161                         // If the link is already contained in the post, then it neeedn't to be added again
 162                         // But: if the link is beyond the limit, then it has to be added.
 163                         if (($link != '') && strstr($msg, $link)) {
 164                                 $pos = strpos($msg, $link);
 165
 166                                 // Will the text be shortened in the link?
 167                                 // Or is the link the last item in the post?
 168                                 if (($limit > 0) && ($pos < $limit) && (($pos + 23 > $limit) || ($pos + strlen($link) == strlen($msg)))) {
 169                                         $msg = trim(str_replace($link, '', $msg));
 170                                 } elseif (($limit == 0) || ($pos < $limit)) {
 171                                         // The limit has to be increased since it will be shortened - but not now
 172                                         // Only do it with Twitter
 173                                         if (($limit > 0) && (strlen($link) > 23) && ($htmlmode == BBCode::TWITTER)) {
 174                                                 $limit = $limit - 23 + strlen($link);
 175                                         }
 176
 177                                         $link = '';
 178
 179                                         if ($post['type'] == 'text') {
 180                                                 unset($post['url']);
 181                                         }
 182                                 }
 183                         }
 184                 }
 185
 186                 if ($limit > 0) {
 187                         // Reduce multiple spaces
 188                         // When posted to a network with limited space, we try to gain space where possible
 189                         while (strpos($msg, '  ') !== false) {
 190                                 $msg = str_replace('  ', ' ', $msg);
 191                         }
 192
 193                         // Twitter is using its own limiter, so we always assume that shortened links will have this length
 194                         if (iconv_strlen($link, 'UTF-8') > 0) {
 195                                 $limit = $limit - 23;
 196                         }
 197
 198                         if (iconv_strlen($msg, 'UTF-8') > $limit) {
 199                                 if (($post['type'] == 'text') && isset($post['url'])) {
 200                                         $post['url'] = $item['plink'];
 201                                 } elseif (!isset($post['url'])) {
 202                                         $limit = $limit - 23;
 203                                         $post['url'] = $item['plink'];
 204                                 } elseif (strpos($item['body'], '[share') !== false) {
 205                                         $post['url'] = $item['plink'];
 206                                 } elseif (DI::pConfig()->get($item['uid'], 'system', 'no_intelligent_shortening')) {
 207                                         $post['url'] = $item['plink'];
 208                                 }
 209                                 $msg = Text\Plaintext::shorten($msg, $limit);
 210                         }
 211                 }
 212
 213                 $post['text'] = trim($msg);
 214
 215                 return $post;
 216         }
 217 }