diff options
Diffstat (limited to 'lib/curlclient.php')
| -rw-r--r-- | lib/curlclient.php | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/lib/curlclient.php b/lib/curlclient.php new file mode 100644 index 000000000..c307c2984 --- /dev/null +++ b/lib/curlclient.php @@ -0,0 +1,179 @@ +<?php +/** + * StatusNet, the distributed open-source microblogging tool + * + * Utility class for wrapping Curl + * + * PHP version 5 + * + * LICENCE: This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * @category HTTP + * @package StatusNet + * @author Evan Prodromou <evan@status.net> + * @copyright 2009 StatusNet, Inc. + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://status.net/ + */ + +if (!defined('STATUSNET')) { + exit(1); +} + +define(CURLCLIENT_VERSION, "0.1"); + +/** + * Wrapper for Curl + * + * Makes Curl HTTP client calls within our HTTPClient framework + * + * @category HTTP + * @package StatusNet + * @author Evan Prodromou <evan@status.net> + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://status.net/ + */ + +class CurlClient extends HTTPClient +{ + function __construct() + { + } + + function head($url, $headers=null) + { + $ch = curl_init($url); + + $this->setup($ch); + + curl_setopt_array($ch, + array(CURLOPT_NOBODY => true)); + + if (!is_null($headers)) { + curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); + } + + $result = curl_exec($ch); + + curl_close($ch); + + return $this->parseResults($result); + } + + function get($url, $headers=null) + { + $ch = curl_init($url); + + $this->setup($ch); + + if (!is_null($headers)) { + curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); + } + + $result = curl_exec($ch); + + curl_close($ch); + + return $this->parseResults($result); + } + + function post($url, $headers=null, $body=null) + { + $ch = curl_init($url); + + $this->setup($ch); + + curl_setopt($ch, CURLOPT_POST, true); + + if (!is_null($body)) { + curl_setopt($ch, CURLOPT_POSTFIELDS, $body); + } + + if (!is_null($headers)) { + curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); + } + + $result = curl_exec($ch); + + curl_close($ch); + + return $this->parseResults($result); + } + + function setup($ch) + { + curl_setopt_array($ch, + array(CURLOPT_USERAGENT => $this->userAgent(), + CURLOPT_HEADER => true, + CURLOPT_RETURNTRANSFER => true)); + } + + function userAgent() + { + $version = curl_version(); + return parent::userAgent() . " CurlClient/".CURLCLIENT_VERSION . " cURL/" . $version['version']; + } + + function parseResults($results) + { + $resp = new HTTPResponse(); + + $lines = explode("\r\n", $results); + + if (preg_match("#^HTTP/1.[01] (\d\d\d) .+$#", $lines[0], $match)) { + $resp->code = $match[1]; + } else { + throw Exception("Bad format: initial line is not HTTP status line"); + } + + $lastk = null; + + for ($i = 1; $i < count($lines); $i++) { + $l =& $lines[$i]; + if (mb_strlen($l) == 0) { + $resp->body = implode("\r\n", array_slice($lines, $i + 1)); + break; + } + if (preg_match("#^(\S+):\s+(.*)$#", $l, $match)) { + $k = $match[1]; + $v = $match[2]; + + if (array_key_exists($k, $resp->headers)) { + if (is_array($resp->headers[$k])) { + $resp->headers[$k][] = $v; + } else { + $resp->headers[$k] = array($resp->headers[$k], $v); + } + } else { + $resp->headers[$k] = $v; + } + $lastk = $k; + } else if (preg_match("#^\s+(.*)$#", $l, $match)) { + // continuation line + if (is_null($lastk)) { + throw Exception("Bad format: initial whitespace in headers"); + } + $h =& $resp->headers[$lastk]; + if (is_array($h)) { + $n = count($h); + $h[$n-1] .= $match[1]; + } else { + $h .= $match[1]; + } + } + } + + return $resp; + } +} |