src/Util/HTTPHeaders.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2022, the Friendica project
   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\Util;
  23
  24 /**
  25  * Ported from Hubzilla: https://framagit.org/hubzilla/core/blob/master/Zotlabs/Web/HTTPHeaders.php
  26  */
  27 class HTTPHeaders
  28 {
  29         private $in_progress = [];
  30         private $parsed = [];
  31
  32         function __construct($headers)
  33         {
  34                 $lines = explode("\n", str_replace("\r", '', $headers));
  35
  36                 if ($lines) {
  37                         foreach ($lines as $line) {
  38                                 if (preg_match('/^\s+/', $line, $matches) && trim($line)) {
  39                                         if (!empty($this->in_progress['k'])) {
  40                                                 $this->in_progress['v'] .= ' ' . ltrim($line);
  41                                                 continue;
  42                                         }
  43                                 } else {
  44                                         if (!empty($this->in_progress['k'])) {
  45                                                 $this->parsed[] = [$this->in_progress['k'] => $this->in_progress['v']];
  46                                                 $this->in_progress = [];
  47                                         }
  48
  49                                         $this->in_progress['k'] = strtolower(substr($line, 0, strpos($line, ':')));
  50                                         $this->in_progress['v'] = ltrim(substr($line, strpos($line, ':') + 1));
  51                                 }
  52                         }
  53
  54                         if (!empty($this->in_progress['k'])) {
  55                                 $this->parsed[$this->in_progress['k']] = $this->in_progress['v'];
  56                                 $this->in_progress = [];
  57                         }
  58                 }
  59         }
  60
  61         function fetch()
  62         {
  63                 return $this->parsed;
  64         }
  65 }