/**
* Hook method to handle the remote request to install an add-on
*
* This is used as a callback when the admin picks a plugin version in the
* Moodle Plugins directory and is redirected back to their site to install
* it.
*
* This hook is called early from admin/tool/installaddon/index.php page so that
* it has opportunity to take over the UI.
*
* @param tool_installaddon_renderer $output
* @param string|null $request
* @param bool $confirmed
*/
public function handle_remote_request(tool_installaddon_renderer $output, $request, $confirmed = false)
{
global $CFG;
require_once dirname(__FILE__) . '/pluginfo_client.php';
if (is_null($request)) {
return;
}
$data = $this->decode_remote_request($request);
if ($data === false) {
echo $output->remote_request_invalid_page($this->index_url());
exit;
}
list($plugintype, $pluginname) = normalize_component($data->component);
$plugintypepath = $this->get_plugintype_root($plugintype);
if (file_exists($plugintypepath . '/' . $pluginname)) {
echo $output->remote_request_alreadyinstalled_page($data, $this->index_url());
exit;
}
if (!$this->is_plugintype_writable($plugintype)) {
$continueurl = $this->index_url(array('installaddonrequest' => $request));
echo $output->remote_request_permcheck_page($data, $plugintypepath, $continueurl, $this->index_url());
exit;
}
$continueurl = $this->index_url(array('installaddonrequest' => $request, 'confirm' => 1, 'sesskey' => sesskey()));
if (!$confirmed) {
echo $output->remote_request_confirm_page($data, $continueurl, $this->index_url());
exit;
}
// The admin has confirmed their intention to install the add-on.
require_sesskey();
// Fetch the plugin info. The essential information is the URL to download the ZIP
// and the MD5 hash of the ZIP, obtained via HTTPS.
$client = tool_installaddon_pluginfo_client::instance();
try {
$pluginfo = $client->get_pluginfo($data->component, $data->version);
} catch (tool_installaddon_pluginfo_exception $e) {
if (debugging()) {
throw $e;
} else {
echo $output->remote_request_pluginfo_exception($data, $e, $this->index_url());
exit;
}
}
// Fetch the ZIP with the plugin version
$jobid = md5(rand() . uniqid('', true));
$sourcedir = make_temp_directory('tool_installaddon/' . $jobid . '/source');
$zipfilename = 'downloaded.zip';
try {
$this->download_file($pluginfo->downloadurl, $sourcedir . '/' . $zipfilename);
} catch (tool_installaddon_installer_exception $e) {
if (debugging()) {
throw $e;
} else {
echo $output->installer_exception($e, $this->index_url());
exit;
}
}
// Check the MD5 checksum
$md5expected = $pluginfo->downloadmd5;
$md5actual = md5_file($sourcedir . '/' . $zipfilename);
if ($md5expected !== $md5actual) {
$e = new tool_installaddon_installer_exception('err_zip_md5', array('expected' => $md5expected, 'actual' => $md5actual));
if (debugging()) {
throw $e;
} else {
echo $output->installer_exception($e, $this->index_url());
exit;
}
}
// Redirect to the validation page.
$nexturl = new moodle_url('/admin/tool/installaddon/validate.php', array('sesskey' => sesskey(), 'jobid' => $jobid, 'zip' => $zipfilename, 'type' => $plugintype));
redirect($nexturl);
}
/**
* Hook method to handle the remote request to install an add-on
*
* This is used as a callback when the admin picks a plugin version in the
* Moodle Plugins directory and is redirected back to their site to install
* it.
*
* This hook is called early from admin/tool/installaddon/index.php page so that
* it has opportunity to take over the UI and display the first confirmation screen.
*
* @param tool_installaddon_renderer $output
* @param string|null $request
*/
public function handle_remote_request(tool_installaddon_renderer $output, $request)
{
if (is_null($request)) {
return;
}
$data = $this->decode_remote_request($request);
if ($data === false) {
echo $output->remote_request_invalid_page($this->index_url());
exit;
}
list($plugintype, $pluginname) = core_component::normalize_component($data->component);
$pluginman = core_plugin_manager::instance();
$plugintypepath = $pluginman->get_plugintype_root($plugintype);
if (file_exists($plugintypepath . '/' . $pluginname)) {
echo $output->remote_request_alreadyinstalled_page($data, $this->index_url());
exit;
}
if (!$pluginman->is_plugintype_writable($plugintype)) {
$continueurl = $this->index_url(array('installaddonrequest' => $request));
echo $output->remote_request_permcheck_page($data, $plugintypepath, $continueurl, $this->index_url());
exit;
}
if (!$pluginman->is_remote_plugin_installable($data->component, $data->version, $reason)) {
$data->reason = $reason;
echo $output->remote_request_non_installable_page($data, $this->index_url());
exit;
}
$continueurl = $this->index_url(array('installremote' => $data->component, 'installremoteversion' => $data->version));
echo $output->remote_request_confirm_page($data, $continueurl, $this->index_url());
exit;
}