DontSellMe/richdocuments
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MemCache is not mandatory any more; but used if available.

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This commit is contained in:
Jan Holesovsky 2016-04-12 20:16:04 +02:00
parent 6eb2e7c474
commit 155f9578fc
1 changed files with 88 additions and 64 deletions
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146
controller/documentcontroller.php
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@ -30,6 +30,19 @@ use \OC\Files\View;
use \OCP\ICacheFactory; use \OCP\ICacheFactory;
use \OCP\ILogger; use \OCP\ILogger;
class ResponseException extends \Exception {
private $hint;
public function __construct($description, $hint = '') {
parent::__construct($description);
$this->hint = $hint;
}
public function getHint() {
return $this->hint;
}
}
class DocumentController extends Controller { class DocumentController extends Controller {
private $uid; private $uid;
@ -54,12 +67,12 @@ class DocumentController extends Controller{
* @param string $mimetype * @param string $mimetype
* @param string $action * @param string $action
*/ */
private function getWopiSrcUrl($discovery, $mimetype, $action) { private function getWopiSrcUrl($discovery_parsed, $mimetype, $action) {
if(is_null($discovery) || $discovery == false) { if(is_null($discovery_parsed) || $discovery_parsed == false) {
return null; return null;
} }
$result = $discovery->xpath(sprintf('/wopi-discovery/net-zone/app[@name=\'%s\']/action[@name=\'%s\']', $mimetype, $action)); $result = $discovery_parsed->xpath(sprintf('/wopi-discovery/net-zone/app[@name=\'%s\']/action[@name=\'%s\']', $mimetype, $action));
if ($result && count($result) > 0) { if ($result && count($result) > 0) {
return (string)$result[0]['urlsrc']; return (string)$result[0]['urlsrc'];
} }
@ -73,6 +86,58 @@ class DocumentController extends Controller{
return $response; return $response;
} }
/** Return the content of discovery.xml - either from cache, or download it.
*/
private function getDiscovery(){
\OC::$server->getLogger()->debug('getDiscovery(): Getting discovery.xml from the cache.');
$wopiRemote = $this->settings->getAppValue('richdocuments', 'wopi_url');
// Provides access to information about the capabilities of a WOPI client
// and the mechanisms for invoking those abilities through URIs.
$wopiDiscovery = $wopiRemote . '/hosting/discovery';
// Read the memcached value (if the memcache is installed)
$discovery = $this->cache->get('discovery.xml');
if (is_null($discovery)) {
$contact_admin = $this->l10n->t('Please contact the "%s" administrator.', array($wopiRemote));
try {
$wopiClient = \OC::$server->getHTTPClientService()->newClient();
$discovery = $wopiClient->get($wopiDiscovery)->getBody();
}
catch (\Exception $e) {
$error_message = $e->getMessage();
if (preg_match('/^cURL error ([0-9]*):/', $error_message, $matches)) {
$admin_check = $this->l10n->t('Please ask your administrator to check the Collabora Online server setting. The exact error message was: ') . $error_message;
$curl_error = $matches[1];
switch ($curl_error) {
case '1':
throw new ResponseException($this->l10n->t('Collabora Online: The protocol specified in "%s" is not allowed.', array($wopiRemote)), $admin_check);
case '3':
throw new ResponseException($this->l10n->t('Collabora Online: Malformed URL "%s".', array($wopiRemote)), $admin_check);
case '6':
throw new ResponseException($this->l10n->t('Collabora Online: Cannot resolve the host "%s".', array($wopiRemote)), $admin_check);
case '60':
throw new ResponseException($this->l10n->t('Collabora Online: SSL certificate is not installed.'), $this->l10n->t('Please ask your administrator to add CollaboraCloudSuiteCA_ca-chain.cert.pem to the ownCloud\'s ca-bundle.crt, for example "cat /etc/loolwsd/CollaboraCloudSuiteCA_ca-chain.cert.pem >> owncloud/resources/config/ca-bundle.crt" . The exact error message was: ') . $error_message);
}
}
throw new ResponseException($this->l10n->t('Collabora Online unknown error: ') . $error_message, $contact_admin);
}
if (!$discovery) {
throw new ResponseException($this->l10n->t('Collabora Online: Unable to read discovery.xml from "%s".', array($wopiRemote)), $contact_admin);
}
\OC::$server->getLogger()->debug('Storing the discovery.xml to the cache.');
$this->cache->set('discovery.xml', $discovery, 3600);
}
return $discovery;
}
/** /**
* @NoAdminRequired * @NoAdminRequired
* @NoCSRFRequired * @NoCSRFRequired
@ -80,15 +145,6 @@ class DocumentController extends Controller{
public function index(){ public function index(){
$wopiRemote = $this->settings->getAppValue('richdocuments', 'wopi_url'); $wopiRemote = $this->settings->getAppValue('richdocuments', 'wopi_url');
if (($parts = parse_url($wopiRemote))) { if (($parts = parse_url($wopiRemote))) {
// Provides access to information about the capabilities of a WOPI client
// and the mechanisms for invoking those abilities through URIs.
// HTTP://server/hosting/discovery
$wopiDiscovery = sprintf(
"%s%s%s%s",
isset($parts['scheme']) ? $parts['scheme'] . "://" : '',
isset($parts['host']) ? $parts['host'] : "",
isset($parts['port']) ? ":" . $parts['port'] : "",
"/hosting/discovery" );
$webSocketProtocol = "ws://"; $webSocketProtocol = "ws://";
if ($parts['scheme'] == "https") { if ($parts['scheme'] == "https") {
$webSocketProtocol = "wss://"; $webSocketProtocol = "wss://";
@ -103,52 +159,6 @@ class DocumentController extends Controller{
return $this->responseError($this->l10n->t('Collabora Online: Invalid URL "%s".', array($wopiRemote)), $this->l10n->t('Please ask your administrator to check the Collabora Online server setting.')); return $this->responseError($this->l10n->t('Collabora Online: Invalid URL "%s".', array($wopiRemote)), $this->l10n->t('Please ask your administrator to check the Collabora Online server setting.'));
} }
$memcache = \OC::$server->getMemCacheFactory();
if (!$memcache->isAvailable()) {
return $this->responseError($this->l10n->t('Collabora Online: You need a memcache for the correct functionality.'), $this->l10n->t('Please ask your administrator to install php5-apcu, add "\'memcache.local\' => \'\\OC\\Memcache\\APCu\'," to owncloud/config/config.php, and restart the webserver.'));
}
$discovery = $this->cache->get('discovery.xml');
if (is_null($discovery)) {
try {
$wopiClient = \OC::$server->getHTTPClientService()->newClient();
$xmlBody = $wopiClient->get($wopiDiscovery)->getBody();
}
catch (\Exception $e) {
$error_message = $e->getMessage();
if (preg_match('/^cURL error ([0-9]*):/', $error_message, $matches)) {
$admin_check = $this->l10n->t('Please ask your administrator to check the Collabora Online server setting. The exact error message was: ') . $error_message;
$curl_error = $matches[1];
switch ($curl_error) {
case '1':
return $this->responseError($this->l10n->t('Collabora Online: The protocol specified in "%s" is not allowed.', array($wopiRemote)), $admin_check);
case '3':
return $this->responseError($this->l10n->t('Collabora Online: Malformed URL "%s".', array($wopiRemote)), $admin_check);
case '6':
return $this->responseError($this->l10n->t('Collabora Online: Cannot resolve the host "%s".', array($wopiRemote)), $admin_check);
case '60':
return $this->responseError($this->l10n->t('Collabora Online: SSL certificate is not installed.'), $this->l10n->t('Please ask your administrator to add CollaboraCloudSuiteCA_ca-chain.cert.pem to the ownCloud\'s ca-bundle.crt, for example "cat /etc/loolwsd/CollaboraCloudSuiteCA_ca-chain.cert.pem >> owncloud/resources/config/ca-bundle.crt" . The exact error message was: ') . $error_message);
}
}
return $this->responseError($this->l10n->t('Collabora Online unknown error: ') . $error_message);
}
if (!$xmlBody) {
return $this->responseError($this->l10n->t('Collabora Online: Unable to read discovery.xml from "%s".', array($wopiRemote)), $this->l10n->t('Please contact the "%s" administrator.', array($wopiRemote)));
}
$loadEntities = libxml_disable_entity_loader(true);
$data = simplexml_load_string($xmlBody);
libxml_disable_entity_loader($loadEntities);
if ($data !== false) {
$this->cache->set('discovery.xml', $xmlBody, 3600);
}
else {
return $this->responseError($this->l10n->t('Collabora Online: discovery.xml from "%s" is not a well-formed XML string.', array($wopiRemote)), $this->l10n->t('Please contact the "%s" administrator.', array($wopiRemote)));
}
}
\OC::$server->getNavigationManager()->setActiveEntry( 'richdocuments_index' ); \OC::$server->getNavigationManager()->setActiveEntry( 'richdocuments_index' );
$maxUploadFilesize = \OCP\Util::maxUploadFilesize("/"); $maxUploadFilesize = \OCP\Util::maxUploadFilesize("/");
$response = new TemplateResponse('richdocuments', 'documents', [ $response = new TemplateResponse('richdocuments', 'documents', [
@ -390,11 +400,25 @@ class DocumentController extends Controller{
*/ */
public function listAll(){ public function listAll(){
$found = Storage::getDocuments(); $found = Storage::getDocuments();
$data = $this->cache->get('discovery.xml');
$discovery_parsed = null;
try {
$discovery = $this->getDiscovery();
$loadEntities = libxml_disable_entity_loader(true); $loadEntities = libxml_disable_entity_loader(true);
$discovery = simplexml_load_string($data); $discovery_parsed = simplexml_load_string($discovery);
libxml_disable_entity_loader($loadEntities); libxml_disable_entity_loader($loadEntities);
if ($discovery_parsed === false) {
$this->cache->remove('discovery.xml');
return responseError($this->l10n->t('Collabora Online: discovery.xml from "%s" is not a well-formed XML string.', array($wopiRemote)), $this->l10n->t('Please contact the "%s" administrator.', array($wopiRemote)));
}
}
catch (ResponseException $e) {
return $this->responseError($e->getMessage(), $e->getHint());
}
$fileIds = array(); $fileIds = array();
$documents = array(); $documents = array();
foreach ($found as $key=>$document) { foreach ($found as $key=>$document) {
@ -405,7 +429,7 @@ class DocumentController extends Controller{
} }
$documents[$key]['icon'] = preg_replace('/\.png$/', '.svg', \OCP\Template::mimetype_icon($document['mimetype'])); $documents[$key]['icon'] = preg_replace('/\.png$/', '.svg', \OCP\Template::mimetype_icon($document['mimetype']));
$documents[$key]['hasPreview'] = \OC::$server->getPreviewManager()->isMimeSupported($document['mimetype']); $documents[$key]['hasPreview'] = \OC::$server->getPreviewManager()->isMimeSupported($document['mimetype']);
$documents[$key]['urlsrc'] = $this->getWopiSrcUrl($discovery, $document['mimetype'], 'edit'); $documents[$key]['urlsrc'] = $this->getWopiSrcUrl($discovery_parsed, $document['mimetype'], 'edit');
$fileIds[] = $document['fileid']; $fileIds[] = $document['fileid'];
} }