3 +--------------------------------------------------------------------+
4 | Copyright CiviCRM LLC. All rights reserved. |
6 | This work is published under the GNU AGPLv3 license with some |
7 | permitted exceptions and without any warranty. For full license |
8 | and copyright information, see https://civicrm.org/licensing |
9 +--------------------------------------------------------------------+
13 * This class handles downloads of remotely-provided extensions
16 * @copyright CiviCRM LLC https://civicrm.org/licensing
18 class CRM_Extension_Downloader
{
20 * @var CRM_Extension_Container_Basic
21 * The place where downloaded extensions are ultimately stored
27 * Local path to a temporary data directory
32 * @param CRM_Extension_Manager $manager
33 * @param string $containerDir
34 * The place to store downloaded & extracted extensions.
35 * @param string $tmpDir
37 public function __construct(CRM_Extension_Manager
$manager, $containerDir, $tmpDir) {
38 $this->manager
= $manager;
39 $this->containerDir
= $containerDir;
40 $this->tmpDir
= $tmpDir;
44 * Determine whether downloading is supported.
46 * @param \CRM_EXtension_Info $extensionInfo Optional info for (updated) extension
49 * list of error messages; empty if OK
51 public function checkRequirements($extensionInfo = NULL) {
54 if (!$this->containerDir ||
!is_dir($this->containerDir
) ||
!is_writable($this->containerDir
)) {
55 $civicrmDestination = urlencode(CRM_Utils_System
::url('civicrm/admin/extensions', 'reset=1'));
56 $url = CRM_Utils_System
::url('civicrm/admin/setting/path', "reset=1&civicrmDestination=${civicrmDestination}");
58 'title' => ts('Directory Unwritable'),
59 'message' => ts("Your extensions directory is not set or is not writable. Click <a href='%1'>here</a> to set the extensions directory.",
67 if (!class_exists('ZipArchive')) {
69 'title' => ts('ZIP Support Required'),
70 'message' => ts('You will not be able to install extensions at this time because your installation of PHP does not support ZIP archives. Please ask your system administrator to install the standard PHP-ZIP extension.'),
74 if (empty($errors) && !CRM_Utils_HttpClient
::singleton()->isRedirectSupported()) {
75 CRM_Core_Session
::setStatus(ts('WARNING: The downloader may be unable to download files which require HTTP redirection. This may be a configuration issue with PHP\'s open_basedir or safe_mode.'));
76 Civi
::log()->debug('WARNING: The downloader may be unable to download files which require HTTP redirection. This may be a configuration issue with PHP\'s open_basedir or safe_mode.');
80 $requiredExtensions = CRM_Extension_System
::singleton()->getManager()->findInstallRequirements([$extensionInfo->key
], $extensionInfo);
81 foreach ($requiredExtensions as $extension) {
82 if (CRM_Extension_System
::singleton()->getManager()->getStatus($extension) !== CRM_Extension_Manager
::STATUS_INSTALLED
&& $extension !== $extensionInfo->key
) {
84 'title' => ts('Missing Requirement: %1', [1 => $extension]),
85 'message' => ts('You will not be able to install/upgrade %1 until you have installed the %2 extension.', [1 => $extensionInfo->key
, 2 => $extension]),
95 * Install or upgrade an extension from a remote URL.
98 * The name of the extension being installed.
99 * @param string $downloadUrl
100 * URL of a .zip file.
103 * @throws CRM_Extension_Exception
105 public function download($key, $downloadUrl) {
106 $filename = $this->tmpDir
. DIRECTORY_SEPARATOR
. $key . '.zip';
107 $destDir = $this->containerDir
. DIRECTORY_SEPARATOR
. $key;
110 throw new CRM_Extension_Exception(ts('Cannot install this extension - downloadUrl is not set!'));
113 if (!$this->fetch($downloadUrl, $filename)) {
117 $extractedZipPath = $this->extractFiles($key, $filename);
118 if (!$extractedZipPath) {
122 if (!$this->validateFiles($key, $extractedZipPath)) {
126 $this->manager
->replace($extractedZipPath);
132 * Download the remote zipfile.
134 * @param string $remoteFile
135 * URL of a .zip file.
136 * @param string $localFile
137 * Path at which to store the .zip file.
139 * Whether the download was successful.
141 public function fetch($remoteFile, $localFile) {
142 $result = CRM_Utils_HttpClient
::singleton()->fetch($remoteFile, $localFile);
144 case CRM_Utils_HttpClient
::STATUS_OK
:
153 * Extract an extension from a zip file.
156 * The name of the extension being installed; this usually matches the basedir in the .zip.
157 * @param string $zipFile
158 * The local path to a .zip file.
159 * @return string|FALSE
162 public function extractFiles($key, $zipFile) {
163 $config = CRM_Core_Config
::singleton();
165 $zip = new ZipArchive();
166 $res = $zip->open($zipFile);
168 $zipSubDir = CRM_Utils_Zip
::guessBasedir($zip, $key);
169 if ($zipSubDir === FALSE) {
170 CRM_Core_Session
::setStatus(ts('Unable to extract the extension: bad directory structure'), '', 'error');
173 $extractedZipPath = $this->tmpDir
. DIRECTORY_SEPARATOR
. $zipSubDir;
174 if (is_dir($extractedZipPath)) {
175 if (!CRM_Utils_File
::cleanDir($extractedZipPath, TRUE, FALSE)) {
176 CRM_Core_Session
::setStatus(ts('Unable to extract the extension: %1 cannot be cleared', array(1 => $extractedZipPath)), ts('Installation Error'), 'error');
180 if (!$zip->extractTo($this->tmpDir
)) {
181 CRM_Core_Session
::setStatus(ts('Unable to extract the extension to %1.', array(1 => $this->tmpDir
)), ts('Installation Error'), 'error');
187 CRM_Core_Session
::setStatus(ts('Unable to extract the extension.'), '', 'error');
191 return $extractedZipPath;
195 * Validate that $extractedZipPath contains valid for extension $key
198 * @param $extractedZipPath
201 * @throws CRM_Core_Exception
203 public function validateFiles($key, $extractedZipPath) {
204 $filename = $extractedZipPath . DIRECTORY_SEPARATOR
. CRM_Extension_Info
::FILENAME
;
205 if (!is_readable($filename)) {
206 CRM_Core_Session
::setStatus(ts('Failed reading data from %1 during installation', array(1 => $filename)), ts('Installation Error'), 'error');
211 $newInfo = CRM_Extension_Info
::loadFromFile($filename);
213 catch (Exception
$e) {
214 CRM_Core_Session
::setStatus(ts('Failed reading data from %1 during installation', array(1 => $filename)), ts('Installation Error'), 'error');
218 if ($newInfo->key
!= $key) {
219 throw new CRM_Core_Exception(ts('Cannot install - there are differences between extdir XML file and archive XML file!'));