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1 | <?php |
2 | /* | |
3 | +--------------------------------------------------------------------+ | |
232624b1 | 4 | | CiviCRM version 4.4 | |
6a488035 TO |
5 | +--------------------------------------------------------------------+ |
6 | | Copyright CiviCRM LLC (c) 2004-2013 | | |
7 | +--------------------------------------------------------------------+ | |
8 | | This file is a part of CiviCRM. | | |
9 | | | | |
10 | | CiviCRM is free software; you can copy, modify, and distribute it | | |
11 | | under the terms of the GNU Affero General Public License | | |
12 | | Version 3, 19 November 2007 and the CiviCRM Licensing Exception. | | |
13 | | | | |
14 | | CiviCRM is distributed in the hope that it will be useful, but | | |
15 | | WITHOUT ANY WARRANTY; without even the implied warranty of | | |
16 | | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | | |
17 | | See the GNU Affero General Public License for more details. | | |
18 | | | | |
19 | | You should have received a copy of the GNU Affero General Public | | |
20 | | License and the CiviCRM Licensing Exception along | | |
21 | | with this program; if not, contact CiviCRM LLC | | |
22 | | at info[AT]civicrm[DOT]org. If you have questions about the | | |
23 | | GNU Affero General Public License or the licensing of CiviCRM, | | |
24 | | see the CiviCRM license FAQ at http://civicrm.org/licensing | | |
25 | +--------------------------------------------------------------------+ | |
26 | */ | |
27 | ||
28 | /** | |
e647e388 TO |
29 | * This class handles HTTP downloads |
30 | * | |
31 | * FIXME: fetch() and get() report errors differently -- e.g. | |
32 | * fetch() returns fatal and get() returns an error code. Should | |
33 | * refactor both (or get a third-party HTTP library) but don't | |
34 | * want to deal with that so late in the 4.3 dev cycle. | |
6a488035 TO |
35 | * |
36 | * @package CRM | |
37 | * @copyright CiviCRM LLC (c) 2004-2013 | |
38 | * $Id$ | |
39 | * | |
40 | */ | |
41 | class CRM_Utils_HttpClient { | |
42 | ||
43 | const STATUS_OK = 'ok'; | |
44 | const STATUS_WRITE_ERROR = 'write-error'; | |
45 | const STATUS_DL_ERROR = 'dl-error'; | |
46 | ||
3b6f287b TO |
47 | /** |
48 | * @var CRM_Utils_HttpClient | |
49 | */ | |
50 | protected static $singleton; | |
51 | ||
afcc9be0 | 52 | /** |
021cfda1 | 53 | * @var int|NULL seconds; or NULL to use system default |
afcc9be0 | 54 | */ |
021cfda1 | 55 | protected $connectionTimeout; |
afcc9be0 | 56 | |
3b6f287b TO |
57 | public static function singleton() { |
58 | if (!self::$singleton) { | |
59 | self::$singleton = new CRM_Utils_HttpClient(); | |
60 | } | |
61 | return self::$singleton; | |
62 | } | |
63 | ||
021cfda1 TO |
64 | public function __construct($connectionTimeout = NULL) { |
65 | $this->connectionTimeout = $connectionTimeout; | |
afcc9be0 TO |
66 | } |
67 | ||
6a488035 TO |
68 | /** |
69 | * Download the remote zipfile. | |
70 | * | |
71 | * @param string $remoteFile URL of a .zip file | |
72 | * @param string $localFile path at which to store the .zip file | |
73 | * @return STATUS_OK|STATUS_WRITE_ERROR|STATUS_DL_ERROR | |
74 | */ | |
3b6f287b | 75 | public function fetch($remoteFile, $localFile) { |
6a488035 TO |
76 | // Download extension zip file ... |
77 | if (!function_exists('curl_init')) { | |
78 | CRM_Core_Error::fatal('Cannot install this extension - curl is not installed!'); | |
79 | } | |
e647e388 TO |
80 | |
81 | list($ch, $caConfig) = $this->createCurl($remoteFile); | |
6a488035 TO |
82 | if (preg_match('/^https:/', $remoteFile) && !$caConfig->isEnableSSL()) { |
83 | CRM_Core_Error::fatal('Cannot install this extension - does not support SSL'); | |
84 | } | |
85 | ||
6a488035 TO |
86 | $fp = @fopen($localFile, "w"); |
87 | if (!$fp) { | |
88 | CRM_Core_Session::setStatus(ts('Unable to write to %1.<br />Is the location writable?', array(1 => $localFile)), ts('Write Error'), 'error'); | |
89 | return self::STATUS_WRITE_ERROR; | |
90 | } | |
91 | curl_setopt($ch, CURLOPT_FILE, $fp); | |
92 | ||
93 | curl_exec($ch); | |
94 | if (curl_errno($ch)) { | |
95 | CRM_Core_Session::setStatus(ts('Unable to download extension from %1. Error Message: %2', | |
96 | array(1 => $remoteFile, 2 => curl_error($ch))), ts('Download Error'), 'error'); | |
97 | return self::STATUS_DL_ERROR; | |
98 | } | |
99 | else { | |
100 | curl_close($ch); | |
101 | } | |
102 | ||
103 | fclose($fp); | |
104 | ||
105 | return self::STATUS_OK; | |
106 | } | |
afcc9be0 TO |
107 | |
108 | /** | |
109 | * Send an HTTP GET for a remote resource | |
110 | * | |
dadcd1ac | 111 | * @param string $remoteFile URL of remote file |
afcc9be0 TO |
112 | * @return array array(0 => STATUS_OK|STATUS_DL_ERROR, 1 => string) |
113 | */ | |
114 | public function get($remoteFile) { | |
afcc9be0 TO |
115 | // Download extension zip file ... |
116 | if (!function_exists('curl_init')) { | |
dadcd1ac FG |
117 | // CRM-13805 |
118 | CRM_Core_Session::setStatus( | |
119 | ts('As a result, actions like retrieving the CiviCRM news feed will fail. Talk to your server administrator or hosting company to rectify this.'), | |
120 | ts('Curl is not installed') | |
121 | ); | |
afcc9be0 TO |
122 | return array(self::STATUS_DL_ERROR, NULL); |
123 | } | |
e647e388 TO |
124 | |
125 | list($ch, $caConfig) = $this->createCurl($remoteFile); | |
126 | ||
afcc9be0 TO |
127 | if (preg_match('/^https:/', $remoteFile) && !$caConfig->isEnableSSL()) { |
128 | //CRM_Core_Error::fatal('Cannot install this extension - does not support SSL'); | |
129 | return array(self::STATUS_DL_ERROR, NULL); | |
130 | } | |
131 | ||
afcc9be0 | 132 | curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); |
afcc9be0 TO |
133 | $data = curl_exec($ch); |
134 | if (curl_errno($ch)) { | |
2b5a6dbf | 135 | return array(self::STATUS_DL_ERROR, $data); |
afcc9be0 TO |
136 | } |
137 | else { | |
138 | curl_close($ch); | |
139 | } | |
140 | ||
141 | return array(self::STATUS_OK, $data); | |
e647e388 TO |
142 | } |
143 | ||
49626e3d CW |
144 | /** |
145 | * Send an HTTP POST for a remote resource | |
146 | * | |
147 | * @param string $remoteFile URL of a .zip file | |
148 | * @param string $localFile path at which to store the .zip file | |
149 | * @return array array(0 => STATUS_OK|STATUS_DL_ERROR, 1 => string) | |
150 | */ | |
151 | public function post($remoteFile, $params) { | |
152 | // Download extension zip file ... | |
153 | if (!function_exists('curl_init')) { | |
154 | //CRM_Core_Error::fatal('Cannot install this extension - curl is not installed!'); | |
155 | return array(self::STATUS_DL_ERROR, NULL); | |
156 | } | |
157 | ||
158 | list($ch, $caConfig) = $this->createCurl($remoteFile); | |
159 | ||
160 | if (preg_match('/^https:/', $remoteFile) && !$caConfig->isEnableSSL()) { | |
161 | //CRM_Core_Error::fatal('Cannot install this extension - does not support SSL'); | |
162 | return array(self::STATUS_DL_ERROR, NULL); | |
163 | } | |
164 | ||
165 | curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); | |
166 | curl_setopt($ch, CURLOPT_POST, true); | |
167 | curl_setopt($ch, CURLOPT_POST,count($params)); | |
168 | curl_setopt($ch, CURLOPT_POSTFIELDS,$params); | |
169 | $data = curl_exec($ch); | |
170 | if (curl_errno($ch)) { | |
2b5a6dbf | 171 | return array(self::STATUS_DL_ERROR, $data); |
49626e3d CW |
172 | } |
173 | else { | |
174 | curl_close($ch); | |
175 | } | |
176 | ||
177 | return array(self::STATUS_OK, $data); | |
178 | } | |
179 | ||
e647e388 TO |
180 | /** |
181 | * @param string $remoteFile | |
182 | * @return array (0 => resource, 1 => CA_Config_Curl) | |
183 | */ | |
184 | protected function createCurl($remoteFile) { | |
185 | require_once 'CA/Config/Curl.php'; | |
186 | $caConfig = CA_Config_Curl::probe(array( | |
187 | 'verify_peer' => (bool) CRM_Core_BAO_Setting::getItem(CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME, 'verifySSL', NULL, TRUE) | |
188 | )); | |
189 | ||
190 | $ch = curl_init(); | |
191 | curl_setopt($ch, CURLOPT_URL, $remoteFile); | |
192 | curl_setopt($ch, CURLOPT_HEADER, FALSE); | |
193 | curl_setopt($ch, CURLOPT_ENCODING, 'gzip'); | |
194 | curl_setopt($ch, CURLOPT_VERBOSE, 0); | |
eb066397 | 195 | if ($this->isRedirectSupported()) { |
439b9688 LS |
196 | curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE); |
197 | } | |
021cfda1 TO |
198 | if ($this->connectionTimeout !== NULL) { |
199 | curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $this->connectionTimeout); | |
200 | } | |
e647e388 TO |
201 | if (preg_match('/^https:/', $remoteFile) && $caConfig->isEnableSSL()) { |
202 | curl_setopt_array($ch, $caConfig->toCurlOptions()); | |
203 | } | |
afcc9be0 | 204 | |
e647e388 | 205 | return array($ch, $caConfig); |
afcc9be0 TO |
206 | } |
207 | ||
eb066397 TO |
208 | public function isRedirectSupported() { |
209 | return ini_get('open_basedir') == '' && ini_get('safe_mode') == 'Off'; | |
210 | } | |
211 | ||
6a488035 | 212 | } |