ucb: webdav-curl: tdf#101094 (4) OPTIONS: Add member function getResourceOptions

[ port of commit 2777b6380c17bad8a966454947b9d991f9592224 ]

Change-Id: I8c54b564a8c92dcd395e104976f7a7071b5264eb
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/123285
Tested-by: Michael Stahl <michael.stahl@allotropia.de>
Reviewed-by: Michael Stahl <michael.stahl@allotropia.de>

2 files changed, 112 insertions, 0 deletions

diff --git a/ucb/source/ucp/webdav-curl/webdavcontent.cxx b/ucb/source/ucp/webdav-curl/webdavcontent.cxx
index ec16224b1066..a90f1970f513 100644
--- a/ucb/source/ucp/webdav-curl/webdavcontent.cxx
+++ b/ucb/source/ucp/webdav-curl/webdavcontent.cxx
@@ -3565,4 +3565,103 @@ Content::ResourceType Content::getResourceType(
     return ret;
 }
 
+
+void Content::getResourceOptions(
+                    const css::uno::Reference< css::ucb::XCommandEnvironment >& xEnv,
+                    DAVOptions& rDAVOptions,
+                    const std::unique_ptr< DAVResourceAccess > & rResAccess )
+{
+    try
+    {
+        rResAccess->OPTIONS( rDAVOptions, xEnv );
+        // IMPORTANT:the correctly implemented server will answer without errors, even if the resource is not present
+    }
+    catch ( DAVException const & e )
+    {
+        rResAccess->resetUri();
+
+        switch( e.getError() )
+        {
+            case DAVException::DAV_HTTP_TIMEOUT:
+            case DAVException::DAV_HTTP_CONNECT:
+            {
+                // something bad happened to the connection
+                // not same as not found, this instead happens when the server does'n exist or does'n aswer at all
+                // probably a new bit stating 'timed out' should be added to opts var?
+                // in any case abort the command
+                cancelCommandExecution( e, xEnv );
+                // unreachable
+            }
+            break;
+            case DAVException::DAV_HTTP_AUTH:
+            {
+                SAL_WARN( "ucb.ucp.webdav", "OPTIONS - DAVException Authentication error for URL <" << m_xIdentifier->getContentIdentifier() << ">" );
+                // - the remote site is a WebDAV with special configuration: read/only for read operations
+                //   and read/write for write operations, the user is not allowed to lock/write and
+                //   she cancelled the credentials request.
+                //   this is not actually an error, it means only that for current user this is a standard web,
+                //   though possibly DAV enabled
+            }
+            break;
+            case DAVException::DAV_HTTP_ERROR:
+            {
+                switch( e.getStatus() )
+                {
+                    case SC_FORBIDDEN:
+                    {
+                        SAL_WARN( "ucb.ucp.webdav","OPTIONS - Forbidden for URL <" << m_xIdentifier->getContentIdentifier() << ">" );
+                        rDAVOptions.setResourceFound(); // means it exists, but it's not DAV
+                    }
+                    break;
+                    case SC_BAD_REQUEST:
+                    {
+                        SAL_WARN( "ucb.ucp.webdav","OPTIONS - Bad request for URL <" << m_xIdentifier->getContentIdentifier() << ">" );
+                        rDAVOptions.setResourceFound(); // means it exists, but it's not DAV
+                    }
+                    break;
+                    case SC_NOT_IMPLEMENTED:
+                    case SC_METHOD_NOT_ALLOWED:
+                    {
+                        // OPTIONS method must be implemented in DAV
+                        // resource is NON_DAV, or not advertising it
+                        SAL_WARN( "ucb.ucp.webdav","OPTIONS - Method not implemented or not allowed for URL <" << m_xIdentifier->getContentIdentifier() << ">" );
+                        rDAVOptions.setResourceFound(); // means it exists, but it's not DAV
+                    }
+                    break;
+                    case SC_NOT_FOUND:
+                    {
+                        SAL_WARN( "ucb.ucp.webdav", "OPTIONS - Resource not found for URL <" << m_xIdentifier->getContentIdentifier() << ">" );
+                    }
+                    break;
+                    default:
+                        break;
+                }
+            }
+            break;
+            default: // leave the resource type as UNKNOWN, for now
+                // it means this will be managed as a standard http site
+                SAL_WARN( "ucb.ucp.webdav","OPTIONS - DAVException for URL <" << m_xIdentifier->getContentIdentifier() << ">, DAV error: "
+                          << e.getError() << ", HTTP error: "<<e.getStatus() );
+                break;
+        }
+    }
+}
+
+void Content::getResourceOptions(
+                    const uno::Reference< ucb::XCommandEnvironment >& xEnv,
+                    DAVOptions& rDAVOptions )
+{
+    std::unique_ptr< DAVResourceAccess > xResAccess;
+    {
+        osl::MutexGuard aGuard( m_aMutex );
+        xResAccess.reset( new DAVResourceAccess( *m_xResAccess ) );
+    }
+    getResourceOptions( xEnv, rDAVOptions, xResAccess );
+    {
+        osl::Guard< osl::Mutex > aGuard( m_aMutex );
+        m_xResAccess.reset( new DAVResourceAccess( *xResAccess ) );
+    }
+}
+
+
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/ucb/source/ucp/webdav-curl/webdavcontent.hxx b/ucb/source/ucp/webdav-curl/webdavcontent.hxx
index bdfe0a116919..f5a74bd1f7d0 100644
--- a/ucb/source/ucp/webdav-curl/webdavcontent.hxx
+++ b/ucb/source/ucp/webdav-curl/webdavcontent.hxx
@@ -76,7 +76,9 @@ class Content : public ::ucbhelper::ContentImplHelper,
     std::unique_ptr< DAVResourceAccess > m_xResAccess;
     std::unique_ptr< CachableContentProperties > m_xCachedProps; // locally cached props
     OUString     m_aEscapedTitle;
+    // resource type for general DAV methods
     ResourceType      m_eResourceType;
+    // resource type for general LOCK method only
     ResourceType      m_eResourceTypeForLocks;
     ContentProvider*  m_pProvider; // No need for a ref, base class holds object
     rtl::Reference< DAVSessionFactory > m_rSessionFactory;
@@ -262,6 +264,17 @@ public:
                        const ContentProperties& rData,
                        const rtl::Reference< ::ucbhelper::ContentProviderImplHelper >& rProvider,
                        const OUString& rContentId );
+
+    /// Use OPTIONS method to retrieve the type of the Web resource
+    /// @throws css::uno::Exception
+    void getResourceOptions( const css::uno::Reference< css::ucb::XCommandEnvironment >& xEnv,
+                             DAVOptions& rDAVOptions,
+                             const std::unique_ptr< DAVResourceAccess > & rResAccess );
+
+    /// @throws css::uno::Exception
+    void getResourceOptions( const css::uno::Reference< css::ucb::XCommandEnvironment >& xEnv,
+                             DAVOptions& rDAVOptions );
+
 };
 
 }