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 (`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         /**
  54          * Convert a message into plaintext for connectors to other networks
  55          *
  56          * @param array  $item           The message array that is about to be posted
  57          * @param int    $limit          The maximum number of characters when posting to that network
  58          * @param bool   $includedlinks  Has an attached link to be included into the message?
  59          * @param int    $htmlmode       This controls the behavior of the BBCode conversion
  60          * @param string $target_network Name of the network where the post should go to.
  61          *
  62          * @return array Same array structure than \Friendica\Content\Text\BBCode::getAttachedData
  63          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  64          * @see   \Friendica\Content\Text\BBCode::getAttachedData
  65          *
  66          */
  67         public static function getPlaintextPost($item, $limit = 0, $includedlinks = false, $htmlmode = BBCode::API, $target_network = '')
  68         {
  69                 // Remove hashtags
  70                 $URLSearchString = '^\[\]';
  71                 $body = preg_replace("/([#@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $item['body']);
  72
  73                 // Add an URL element if the text contains a raw link
  74                 $body = preg_replace('/([^\]\=\'"]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism',
  75                         '$1[url]$2[/url]', $body);
  76
  77                 // Remove the abstract
  78                 $body = Text\BBCode::stripAbstract($body);
  79
  80                 // At first look at data that is attached via "type-..." stuff
  81                 // This will hopefully replaced with a dedicated bbcode later
  82                 //$post = self::getAttachedData($b['body']);
  83                 $post = Text\BBCode::getAttachedData($body, $item);
  84
  85                 if (($item['title'] != '') && ($post['text'] != '')) {
  86                         $post['text'] = trim($item['title'] . "\n\n" . $post['text']);
  87                 } elseif ($item['title'] != '') {
  88                         $post['text'] = trim($item['title']);
  89                 }
  90
  91                 $abstract = '';
  92
  93                 // Fetch the abstract from the given target network
  94                 if ($target_network != '') {
  95                         $default_abstract = Text\BBCode::getAbstract($item['body']);
  96                         $abstract = Text\BBCode::getAbstract($item['body'], $target_network);
  97
  98                         // If we post to a network with no limit we only fetch
  99                         // an abstract exactly for this network
 100                         if (($limit == 0) && ($abstract == $default_abstract)) {
 101                                 $abstract = '';
 102                         }
 103                 } else {// Try to guess the correct target network
 104                         switch ($htmlmode) {
 105                                 case BBCode::TWITTER:
 106                                         $abstract = Text\BBCode::getAbstract($item['body'], Protocol::TWITTER);
 107                                         break;
 108
 109                                 case BBCode::OSTATUS:
 110                                         $abstract = Text\BBCode::getAbstract($item['body'], Protocol::STATUSNET);
 111                                         break;
 112
 113                                 default: // We don't know the exact target.
 114                                         // We fetch an abstract since there is a posting limit.
 115                                         if ($limit > 0) {
 116                                                 $abstract = Text\BBCode::getAbstract($item['body']);
 117                                         }
 118                         }
 119                 }
 120
 121                 if ($abstract != '') {
 122                         $post['text'] = $abstract;
 123
 124                         if ($post['type'] == 'text') {
 125                                 $post['type'] = 'link';
 126                                 $post['url'] = $item['plink'];
 127                         }
 128                 }
 129
 130                 $html = Text\BBCode::convert($post['text'] . ($post['after'] ?? ''), false, $htmlmode);
 131                 $msg = Text\HTML::toPlaintext($html, 0, true);
 132                 $msg = trim(html_entity_decode($msg, ENT_QUOTES, 'UTF-8'));
 133
 134                 $link = '';
 135                 if ($includedlinks) {
 136                         if ($post['type'] == 'link') {
 137                                 $link = $post['url'];
 138                         } elseif ($post['type'] == 'text') {
 139                                 $link = $post['url'] ?? '';
 140                         } elseif ($post['type'] == 'video') {
 141                                 $link = $post['url'];
 142                         } elseif ($post['type'] == 'photo') {
 143                                 $link = $post['image'];
 144                         }
 145
 146                         if (($msg == '') && isset($post['title'])) {
 147                                 $msg = trim($post['title']);
 148                         }
 149
 150                         if (($msg == '') && isset($post['description'])) {
 151                                 $msg = trim($post['description']);
 152                         }
 153
 154                         // If the link is already contained in the post, then it neeedn't to be added again
 155                         // But: if the link is beyond the limit, then it has to be added.
 156                         if (($link != '') && strstr($msg, $link)) {
 157                                 $pos = strpos($msg, $link);
 158
 159                                 // Will the text be shortened in the link?
 160                                 // Or is the link the last item in the post?
 161                                 if (($limit > 0) && ($pos < $limit) && (($pos + 23 > $limit) || ($pos + strlen($link) == strlen($msg)))) {
 162                                         $msg = trim(str_replace($link, '', $msg));
 163                                 } elseif (($limit == 0) || ($pos < $limit)) {
 164                                         // The limit has to be increased since it will be shortened - but not now
 165                                         // Only do it with Twitter
 166                                         if (($limit > 0) && (strlen($link) > 23) && ($htmlmode == BBCode::TWITTER)) {
 167                                                 $limit = $limit - 23 + strlen($link);
 168                                         }
 169
 170                                         $link = '';
 171
 172                                         if ($post['type'] == 'text') {
 173                                                 unset($post['url']);
 174                                         }
 175                                 }
 176                         }
 177                 }
 178
 179                 if ($limit > 0) {
 180                         // Reduce multiple spaces
 181                         // When posted to a network with limited space, we try to gain space where possible
 182                         while (strpos($msg, '  ') !== false) {
 183                                 $msg = str_replace('  ', ' ', $msg);
 184                         }
 185
 186                         // Twitter is using its own limiter, so we always assume that shortened links will have this length
 187                         if (iconv_strlen($link, 'UTF-8') > 0) {
 188                                 $limit = $limit - 23;
 189                         }
 190
 191                         if (iconv_strlen($msg, 'UTF-8') > $limit) {
 192                                 if (($post['type'] == 'text') && isset($post['url'])) {
 193                                         $post['url'] = $item['plink'];
 194                                 } elseif (!isset($post['url'])) {
 195                                         $limit = $limit - 23;
 196                                         $post['url'] = $item['plink'];
 197                                 } elseif (strpos($item['body'], '[share') !== false) {
 198                                         $post['url'] = $item['plink'];
 199                                 } elseif (DI::pConfig()->get($item['uid'], 'system', 'no_intelligent_shortening')) {
 200                                         $post['url'] = $item['plink'];
 201                                 }
 202                                 $msg = Text\Plaintext::shorten($msg, $limit);
 203                         }
 204                 }
 205
 206                 $post['text'] = trim($msg);
 207
 208                 return $post;
 209         }
 210 }