webdav: Lock files when opening them.

The implementation is not perfect but good enough as a start.

(cherry picked from commit 6e0cc0cd40fcceef601c9b680f44b95f6286ffa0)

Conflicts:
ucb/source/ucp/webdav/SerfSession.cxx

Change-Id: I6f006ae7a16ee73de20448e1228d9acfd69becb4

7 files changed, 249 insertions, 84 deletions

diff --git a/ucb/Library_ucpdav1.mk b/ucb/Library_ucpdav1.mk
index 2e23ba861ec9..ad0fe79fae33 100644
--- a/ucb/Library_ucpdav1.mk
+++ b/ucb/Library_ucpdav1.mk
@@ -84,6 +84,7 @@ $(eval $(call gb_Library_add_exception_objects,ucpdav1,\
 	ucb/source/ucp/webdav/SerfGetReqProcImpl \
 	ucb/source/ucp/webdav/SerfHeadReqProcImpl \
 	ucb/source/ucp/webdav/SerfInputStream \
+	ucb/source/ucp/webdav/SerfLockReqProcImpl \
 	ucb/source/ucp/webdav/SerfMkColReqProcImpl \
 	ucb/source/ucp/webdav/SerfMoveReqProcImpl \
 	ucb/source/ucp/webdav/SerfPostReqProcImpl \
diff --git a/ucb/source/ucp/webdav/SerfLockReqProcImpl.cxx b/ucb/source/ucp/webdav/SerfLockReqProcImpl.cxx
new file mode 100644
index 000000000000..f5aa35c89806
--- /dev/null
+++ b/ucb/source/ucp/webdav/SerfLockReqProcImpl.cxx
@@ -0,0 +1,165 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "SerfLockReqProcImpl.hxx"
+#include "DAVException.hxx"
+
+//#include "webdavresponseparser.hxx"
+#include <rtl/strbuf.hxx>
+
+namespace http_dav_ucp
+{
+
+SerfLockReqProcImpl::SerfLockReqProcImpl( const char* inPath,
+                                          const DAVRequestHeaders& inRequestHeaders,
+                                          const css::ucb::Lock & rLock )
+    : SerfRequestProcessorImpl( inPath, inRequestHeaders )
+    , m_aLock( rLock )
+    , m_xInputStream( new SerfInputStream() )
+{
+}
+
+SerfLockReqProcImpl::~SerfLockReqProcImpl()
+{
+}
+
+serf_bucket_t * SerfLockReqProcImpl::createSerfRequestBucket( serf_request_t * inSerfRequest )
+{
+    serf_bucket_alloc_t* pSerfBucketAlloc = serf_request_get_alloc( inSerfRequest );
+
+    OStringBuffer aBody("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
+                        "<lockinfo xmlns='DAV:'>\n <lockscope>");
+
+    // Set the lock scope
+    switch ( m_aLock.Scope )
+    {
+        case css::ucb::LockScope_EXCLUSIVE:
+            aBody.append("<exclusive/>");
+            break;
+        case css::ucb::LockScope_SHARED:
+            aBody.append("<shared/>");
+            break;
+        default:
+            throw DAVException( DAVException::DAV_INVALID_ARG );
+    }
+    aBody.append("</lockscope>\n <locktype><write/></locktype>\n");
+
+    // Set the lock owner
+    OUString aValue;
+    if ((m_aLock.Owner >>= aValue) && !aValue.isEmpty())
+    {
+        aBody.append(" <owner>");
+        aBody.append(OUStringToOString(aValue, RTL_TEXTENCODING_UTF8));
+        aBody.append("</owner>\n");
+    }
+    aBody.append("</lockinfo>\n");
+
+    const OString aBodyText(aBody.makeStringAndClear());
+    serf_bucket_t* body_bkt = serf_bucket_simple_copy_create( aBodyText.getStr(),
+                                                              aBodyText.getLength(),
+                                                              pSerfBucketAlloc );
+
+    // create serf request
+    serf_bucket_t *req_bkt = serf_request_bucket_request_create( inSerfRequest,
+                                                                 "LOCK",
+                                                                 getPathStr(),
+                                                                 body_bkt,
+                                                                 pSerfBucketAlloc );
+    handleChunkedEncoding(req_bkt, aBodyText.getLength());
+
+    // set request header fields
+    serf_bucket_t* hdrs_bkt = serf_bucket_request_get_headers( req_bkt );
+
+    // general header fields provided by caller
+    setRequestHeaders( hdrs_bkt );
+
+    // request specific header fields
+    const char * depth = 0;
+    switch( m_aLock.Depth )
+    {
+        case css::ucb::LockDepth_ZERO:
+            depth = "0";
+            break;
+        case css::ucb::LockDepth_ONE:
+            depth = "1";
+            break;
+        case css::ucb::LockDepth_INFINITY:
+            depth = "infinity";
+            break;
+        default:
+            throw DAVException( DAVException::DAV_INVALID_ARG );
+    }
+    serf_bucket_headers_set( hdrs_bkt, "Depth", depth );
+    serf_bucket_headers_set( hdrs_bkt, "Content-Type", "application/xml" );
+
+    // Set the lock timeout
+    if (m_aLock.Timeout == -1)
+        serf_bucket_headers_set( hdrs_bkt, "Timeout", "Infinite" );
+    else if (m_aLock.Timeout > 0)
+    {
+        const OString aTimeValue("Second-" + OString::number(m_aLock.Timeout));
+        serf_bucket_headers_set( hdrs_bkt, "Timeout", aTimeValue.getStr() );
+    }
+
+    osl_getSystemTime( &m_aStartCall );
+
+    return req_bkt;
+}
+
+void SerfLockReqProcImpl::processChunkOfResponseData( const char* data,
+                                                          apr_size_t len )
+{
+    if ( m_xInputStream.is() )
+    {
+        m_xInputStream->AddToStream( data, len );
+    }
+}
+
+void SerfLockReqProcImpl::handleEndOfResponseData( serf_bucket_t * /*inSerfResponseBucket*/ )
+{
+    //const std::vector< DAVResourceInfo > rResInfo( parseWebDAVPropNameResponse( m_xInputStream.get() ) );
+
+    /*
+    if ( theRetVal == NE_OK )
+    {
+        m_aSerfLockStore.addLock( theLock,
+                                  this,
+                                  lastChanceToSendRefreshRequest(
+                                      startCall, theLock->timeout ) );
+
+        uno::Sequence< OUString > aTokens( 1 );
+        aTokens[ 0 ] = OUString::createFromAscii( theLock->token );
+        m_xLock.LockTokens = aTokens;
+
+        SAL_INFO("ucb.ucp.webdav",  "SerfSession::LOCK: created lock for "
+                    << makeAbsoluteURL( inPath ) << ". token: " << theLock->token );
+    }
+    else
+    {
+        ne_lock_destroy( theLock );
+
+        SAL_INFO("ucb.ucp.webdav",  "SerfSession::LOCK: obtaining lock for "
+                    << makeAbsoluteURL( inPath ) << " failed!");
+    }
+    */
+}
+
+} // namespace http_dav_ucp
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/ucb/source/ucp/webdav/SerfLockReqProcImpl.hxx b/ucb/source/ucp/webdav/SerfLockReqProcImpl.hxx
new file mode 100644
index 000000000000..cb746a30ab16
--- /dev/null
+++ b/ucb/source/ucp/webdav/SerfLockReqProcImpl.hxx
@@ -0,0 +1,60 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_SERFLOCKREQPROCIMPL_HXX
+#define INCLUDED_SERFLOCKREQPROCIMPL_HXX
+
+#include "SerfRequestProcessorImpl.hxx"
+#include "SerfInputStream.hxx"
+
+#include <com/sun/star/ucb/Lock.hpp>
+#include <osl/time.h>
+
+namespace http_dav_ucp
+{
+
+class SerfLockReqProcImpl : public SerfRequestProcessorImpl
+{
+public:
+    SerfLockReqProcImpl( const char* inPath,
+                         const DAVRequestHeaders& inRequestHeaders,
+                         const css::ucb::Lock & rLock );
+
+    virtual ~SerfLockReqProcImpl() SAL_OVERRIDE;
+
+    virtual
+    serf_bucket_t * createSerfRequestBucket( serf_request_t * inSerfRequest ) SAL_OVERRIDE;
+
+private:
+    virtual
+    void processChunkOfResponseData( const char* data, apr_size_t len ) SAL_OVERRIDE;
+
+    virtual
+    void handleEndOfResponseData( serf_bucket_t * inSerfResponseBucket ) SAL_OVERRIDE;
+
+    css::ucb::Lock m_aLock;
+    TimeValue m_aStartCall;
+    css::uno::Reference< SerfInputStream > m_xInputStream;
+};
+
+} // namespace http_dav_ucp
+
+#endif // INCLUDED_SERFLOCKREQPROCIMPL_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/ucb/source/ucp/webdav/SerfRequestProcessor.cxx b/ucb/source/ucp/webdav/SerfRequestProcessor.cxx
index 70d5575081e1..8a1663bfc2a5 100644
--- a/ucb/source/ucp/webdav/SerfRequestProcessor.cxx
+++ b/ucb/source/ucp/webdav/SerfRequestProcessor.cxx
@@ -30,6 +30,7 @@
 #include "SerfMkColReqProcImpl.hxx"
 #include "SerfCopyReqProcImpl.hxx"
 #include "SerfMoveReqProcImpl.hxx"
+#include "SerfLockReqProcImpl.hxx"
 
 #include <apr_strings.h>
 
@@ -308,6 +309,16 @@ bool SerfRequestProcessor::processMove( const OUString & inDestinationPath,
     return outSerfStatus == APR_SUCCESS;
 }
 
+
+bool SerfRequestProcessor::processLock( const css::ucb::Lock & rLock )
+{
+    mpProcImpl = new SerfLockReqProcImpl( mPathStr,
+                                          mrSerfSession.getRequestEnvironment().m_aRequestHeaders,
+                                          rLock );
+
+    return runProcessor() == APR_SUCCESS;
+}
+
 apr_status_t SerfRequestProcessor::runProcessor()
 {
     prepareProcessor();
diff --git a/ucb/source/ucp/webdav/SerfRequestProcessor.hxx b/ucb/source/ucp/webdav/SerfRequestProcessor.hxx
index 9addb342adcf..f941a4956997 100644
--- a/ucb/source/ucp/webdav/SerfRequestProcessor.hxx
+++ b/ucb/source/ucp/webdav/SerfRequestProcessor.hxx
@@ -32,6 +32,7 @@
 
 #include "SerfInputStream.hxx"
 #include <com/sun/star/io/XOutputStream.hpp>
+#include <com/sun/star/ucb/Lock.hpp>
 
 namespace http_dav_ucp
 {
@@ -124,6 +125,9 @@ public:
                       const bool inOverwrite,
                       apr_status_t& outSerfStatus );
 
+    //LOCK
+    bool processLock( const css::ucb::Lock & rLock );
+
     apr_status_t provideSerfCredentials( char ** outUsername,
                                          char ** outPassword,
                                          serf_request_t * inRequest,
diff --git a/ucb/source/ucp/webdav/SerfSession.cxx b/ucb/source/ucp/webdav/SerfSession.cxx
index 355c563c4328..9ac01fa72c2c 100644
--- a/ucb/source/ucp/webdav/SerfSession.cxx
+++ b/ucb/source/ucp/webdav/SerfSession.cxx
@@ -972,7 +972,7 @@ namespace
 // LOCK (set new lock)
 // -------------------------------------------------------------------
 void SerfSession::LOCK( const OUString & inPath,
-                        ucb::Lock & /*rLock*/,
+                        ucb::Lock & rLock,
                         const DAVRequestEnvironment & rEnv )
     throw ( DAVException )
 {
@@ -981,90 +981,9 @@ void SerfSession::LOCK( const OUString & inPath,
     Init( rEnv );
 
     boost::shared_ptr<SerfRequestProcessor> aReqProc( createReqProc( inPath ) );
-    HandleError( aReqProc );
-    /* Create a depth zero, exclusive write lock, with default timeout
-     * (allowing a server to pick a default).  token, owner and uri are
-     * unset. */
-    /*
-    SerfLock * theLock = ne_lock_create();
-
-    // Set the lock uri
-    ne_uri aUri;
-    ne_uri_parse( OUStringToOString( makeAbsoluteURL( inPath ),
-                                          RTL_TEXTENCODING_UTF8 ).getStr(),
-                  &aUri );
-    theLock->uri = aUri;
-
-    // Set the lock depth
-    switch( rLock.Depth )
-    {
-    case ucb::LockDepth_ZERO:
-        theLock->depth = NE_DEPTH_ZERO;
-        break;
-    case ucb::LockDepth_ONE:
-        theLock->depth = NE_DEPTH_ONE;
-        break;
-    case ucb::LockDepth_INFINITY:
-        theLock->depth = NE_DEPTH_INFINITE;
-        break;
-    default:
-        throw DAVException( DAVException::DAV_INVALID_ARG );
-    }
-
-    // Set the lock scope
-    switch ( rLock.Scope )
-    {
-    case ucb::LockScope_EXCLUSIVE:
-        theLock->scope = ne_lockscope_exclusive;
-        break;
-    case ucb::LockScope_SHARED:
-        theLock->scope = ne_lockscope_shared;
-        break;
-    default:
-        throw DAVException( DAVException::DAV_INVALID_ARG );
-    }
-
-    // Set the lock timeout
-    theLock->timeout = (long)rLock.Timeout;
-
-    // Set the lock owner
-    OUString aValue;
-    rLock.Owner >>= aValue;
-    theLock->owner =
-        ne_strdup( OUStringToOString( aValue,
-                                           RTL_TEXTENCODING_UTF8 ).getStr() );
-    TimeValue startCall;
-    osl_getSystemTime( &startCall );
-
-    int theRetVal = ne_lock( m_pHttpSession, theLock );
-
-    if ( theRetVal == NE_OK )
-    {
-        m_aSerfLockStore.addLock( theLock,
-                                  this,
-                                  lastChanceToSendRefreshRequest(
-                                      startCall, theLock->timeout ) );
-
-        uno::Sequence< OUString > aTokens( 1 );
-        aTokens[ 0 ] = OUString::createFromAscii( theLock->token );
-        rLock.LockTokens = aTokens;
-
-        OSL_TRACE( "SerfSession::LOCK: created lock for %s. token: %s",
-                   OUStringToOString( makeAbsoluteURL( inPath ),
-                                           RTL_TEXTENCODING_UTF8 ).getStr(),
-                   theLock->token );
-    }
-    else
-    {
-        ne_lock_destroy( theLock );
+    aReqProc->processLock( rLock );
 
-        OSL_TRACE( "SerfSession::LOCK: obtaining lock for %s failed!",
-                   OUStringToOString( makeAbsoluteURL( inPath ),
-                                           RTL_TEXTENCODING_UTF8 ).getStr() );
-    }
-
-    HandleError( theRetVal, inPath, rEnv );
-    */
+    HandleError( aReqProc );
 }
 
 // -------------------------------------------------------------------
diff --git a/ucb/source/ucp/webdav/webdavcontent.cxx b/ucb/source/ucp/webdav/webdavcontent.cxx
index 7d6ffe36a764..5c9afc215017 100644
--- a/ucb/source/ucp/webdav/webdavcontent.cxx
+++ b/ucb/source/ucp/webdav/webdavcontent.cxx
@@ -598,6 +598,11 @@ uno::Any SAL_CALL Content::execute(
         }
 
         aRet = open( aOpenCommand, Environment );
+
+        if ( (aOpenCommand.Mode == ucb::OpenMode::DOCUMENT ||
+              aOpenCommand.Mode == ucb::OpenMode::DOCUMENT_SHARE_DENY_WRITE) &&
+                supportsExclusiveWriteLock( Environment ) )
+            lock( Environment );
     }
     else if ( aCommand.Name == "insert" )
     {