diff options
Diffstat (limited to 'ucb/source/ucp/webdav/webdavresponseparser.cxx')
| -rw-r--r-- | ucb/source/ucp/webdav/webdavresponseparser.cxx | 897 |
1 files changed, 897 insertions, 0 deletions
diff --git a/ucb/source/ucp/webdav/webdavresponseparser.cxx b/ucb/source/ucp/webdav/webdavresponseparser.cxx new file mode 100644 index 000000000..b03a392d5 --- /dev/null +++ b/ucb/source/ucp/webdav/webdavresponseparser.cxx @@ -0,0 +1,897 @@ +/* -*- 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 "webdavresponseparser.hxx" +#include <com/sun/star/xml/sax/XDocumentHandler.hpp> +#include <cppuhelper/implbase.hxx> +#include <com/sun/star/xml/sax/Parser.hpp> +#include <com/sun/star/xml/sax/InputSource.hpp> +#include <comphelper/processfactory.hxx> +#include <com/sun/star/ucb/LockEntry.hpp> +#include <com/sun/star/ucb/LockScope.hpp> +#include <com/sun/star/ucb/LockType.hpp> +#include <com/sun/star/ucb/Lock.hpp> +#include <map> +#include <unordered_map> +#include <sal/log.hxx> + +using namespace com::sun::star; + + +// WebDAVNamespace enum and StringToEnum converter +namespace +{ + enum WebDAVNamespace + { + WebDAVNamespace_unknown = 0, + WebDAVNamespace_DAV, + WebDAVNamespace_ucb_openoffice_org_dav_props, + + WebDAVNamespace_last + }; + + WebDAVNamespace StrToWebDAVNamespace(const OUString& rStr) + { + if(rStr == "DAV:") + { + return WebDAVNamespace_DAV; + } + else if(rStr == "http://ucb.openoffice.org/dav/props/") + { + return WebDAVNamespace_ucb_openoffice_org_dav_props; + } + + return WebDAVNamespace_unknown; + } +} // end of anonymous namespace + +// WebDAVName enum and StringToEnum converter using unordered_map +namespace +{ + enum WebDAVName + { + WebDAVName_unknown = 0, + WebDAVName_activelock, + WebDAVName_multistatus, + WebDAVName_response, + WebDAVName_href, + WebDAVName_propstat, + WebDAVName_prop, + WebDAVName_resourcetype, + WebDAVName_collection, + WebDAVName_getcontenttype, + WebDAVName_supportedlock, + WebDAVName_lockentry, + WebDAVName_lockscope, + WebDAVName_locktoken, + WebDAVName_exclusive, + WebDAVName_locktype, + WebDAVName_owner, + WebDAVName_timeout, + WebDAVName_write, + WebDAVName_shared, + WebDAVName_status, + WebDAVName_getlastmodified, + WebDAVName_creationdate, + WebDAVName_getcontentlength, + + WebDAVName_last + }; + + WebDAVName StrToWebDAVName(const OUString& rStr) + { + typedef std::unordered_map< OUString, WebDAVName > WebDAVNameMapper; + typedef std::pair< OUString, WebDAVName > WebDAVNameValueType; + static WebDAVNameMapper aWebDAVNameMapperList; + + if(aWebDAVNameMapperList.empty()) + { + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("activelock"), WebDAVName_activelock)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("multistatus"), WebDAVName_multistatus)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("response"), WebDAVName_response)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("href"), WebDAVName_href)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("propstat"), WebDAVName_propstat)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("prop"), WebDAVName_prop)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("resourcetype"), WebDAVName_resourcetype)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("collection"), WebDAVName_collection)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("getcontenttype"), WebDAVName_getcontenttype)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("supportedlock"), WebDAVName_supportedlock)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("lockentry"), WebDAVName_lockentry)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("lockscope"), WebDAVName_lockscope)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("locktoken"), WebDAVName_locktoken)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("exclusive"), WebDAVName_exclusive)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("locktype"), WebDAVName_locktype)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("owner"), WebDAVName_owner)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("timeout"), WebDAVName_timeout)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("write"), WebDAVName_write)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("shared"), WebDAVName_shared)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("status"), WebDAVName_status)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("getlastmodified"), WebDAVName_getlastmodified)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("creationdate"), WebDAVName_creationdate)); + aWebDAVNameMapperList.insert(WebDAVNameValueType(OUString("getcontentlength"), WebDAVName_getcontentlength)); + } + + const WebDAVNameMapper::const_iterator aResult(aWebDAVNameMapperList.find(rStr)); + + if(aResult == aWebDAVNameMapperList.end()) + { + return WebDAVName_unknown; + } + else + { + return aResult->second; + } + } +} // end of anonymous namespace + + +// WebDAVContext, holding information for each start/endElement pair + +namespace +{ + typedef std::map< OUString, OUString > NamespaceMap; + + class WebDAVContext + { + private: + WebDAVContext* mpParent; + NamespaceMap maNamespaceMap; + OUString maWhiteSpace; + + OUString maNamespace; + OUString maName; + + WebDAVNamespace maWebDAVNamespace; + WebDAVName maWebDAVName; + + // local helpers + void parseForNamespaceTokens(const uno::Reference< xml::sax::XAttributeList >& xAttribs); + OUString mapNamespaceToken(const OUString& rToken) const; + void splitName(const OUString& rSource); + + public: + WebDAVContext(WebDAVContext* pParent, const OUString& aName, const uno::Reference< xml::sax::XAttributeList >& xAttribs); + + WebDAVContext* getParent() const { return mpParent; } + OUString& getWhiteSpace() { return maWhiteSpace; } + void setWhiteSpace(const OUString& rNew) { maWhiteSpace = rNew; } + + const OUString& getNamespace() const { return maNamespace; } + const OUString& getName() const { return maName; } + const WebDAVNamespace& getWebDAVNamespace() const { return maWebDAVNamespace; } + const WebDAVName& getWebDAVName() const { return maWebDAVName; } + }; + + void WebDAVContext::parseForNamespaceTokens(const uno::Reference< xml::sax::XAttributeList >& xAttribs) + { + const sal_Int16 nAttributes(xAttribs->getLength()); + + for(sal_Int16 a(0); a < nAttributes; a++) + { + const OUString aName(xAttribs->getNameByIndex(a)); + const sal_Int32 nLen(aName.getLength()); + + if(nLen) + { + if(aName.startsWith("xmlns")) + { + const sal_Int32 nIndex(aName.indexOf(':', 0)); + + if(-1 != nIndex && nIndex + 1 < nLen) + { + const OUString aToken(aName.copy(nIndex + 1)); + + maNamespaceMap.emplace(aToken, xAttribs->getValueByIndex(a)); + } + } + } + } + } + + OUString WebDAVContext::mapNamespaceToken(const OUString& rToken) const + { + NamespaceMap::const_iterator iter = maNamespaceMap.find(rToken); + + if(maNamespaceMap.end() == iter) + { + if(getParent()) + { + return getParent()->mapNamespaceToken(rToken); + } + else + { + return rToken; + } + } + else + { + return (*iter).second; + } + } + + void WebDAVContext::splitName(const OUString& rSource) + { + const sal_Int32 nLen(rSource.getLength()); + maNamespace.clear(); + maName = rSource; + + if(nLen) + { + const sal_Int32 nIndex(rSource.indexOf(':', 0)); + + if(nIndex > 0 && ((nIndex + 1) < nLen)) + { + maNamespace = mapNamespaceToken(rSource.copy(0, nIndex)); + maName = rSource.copy(nIndex + 1); + } + } + } + + WebDAVContext::WebDAVContext(WebDAVContext* pParent, const OUString& aName, const uno::Reference< xml::sax::XAttributeList >& xAttribs) + : mpParent(pParent), + maNamespaceMap(), + maWhiteSpace(), + maNamespace(), + maName(), + maWebDAVNamespace(WebDAVNamespace_unknown), + maWebDAVName(WebDAVName_unknown) + { + const sal_Int16 nAttributes(xAttribs->getLength()); + + if(nAttributes) + { + // parse evtl. namespace entries + parseForNamespaceTokens(xAttribs); + } + + // split name to namespace and name + splitName(aName); + + // evaluate enums for namespace and name + maWebDAVNamespace = StrToWebDAVNamespace(maNamespace); + maWebDAVName = StrToWebDAVName(maName); + } +} // end of anonymous namespace + + +// the Xml parser itself + +namespace +{ + enum WebDAVResponseParserMode + { + WebDAVResponseParserMode_PropFind = 0, + WebDAVResponseParserMode_PropName, + WebDAVResponseParserMode_Lock + }; + + class WebDAVResponseParser : public cppu::WeakImplHelper< css::xml::sax::XDocumentHandler > + { + private: + std::vector< ucb::Lock > maResult_Lock; + std::vector< http_dav_ucp::DAVResource > maResult_PropFind; + std::vector< http_dav_ucp::DAVResourceInfo > maResult_PropName; + + WebDAVContext* mpContext; + OUString maHref; + OUString maStatus; + std::vector< http_dav_ucp::DAVPropertyValue > maResponseProperties; + std::vector< http_dav_ucp::DAVPropertyValue > maPropStatProperties; + std::vector< OUString > maResponseNames; + std::vector< OUString > maPropStatNames; + uno::Sequence< ucb::LockEntry > maLockEntries; + ucb::LockScope maLockScope; + ucb::LockType maLockType; + ucb::Lock maLock; + WebDAVResponseParserMode meWebDAVResponseParserMode; + + bool mbResourceTypeCollection : 1; + bool mbLockScopeSet : 1; + bool mbLockTypeSet : 1; + + // local helpers + bool whitespaceIsAvailable() const + { + return mpContext && mpContext->getWhiteSpace().getLength(); + } + bool hasParent(WebDAVName aWebDAVName) const + { + return mpContext && mpContext->getParent() && aWebDAVName == mpContext->getParent()->getWebDAVName(); + } + bool propertyIsReady() const + { + return hasParent(WebDAVName_prop) && whitespaceIsAvailable(); + } + bool isCollectingProperties() const + { + return WebDAVResponseParserMode_PropFind == meWebDAVResponseParserMode; + } + bool isCollectingPropNames() const + { + return WebDAVResponseParserMode_PropName == meWebDAVResponseParserMode; + } + bool collectThisPropertyAsName() const + { + return isCollectingPropNames() && hasParent(WebDAVName_prop); + } + void pop_context() + { + if(mpContext) + { + WebDAVContext* pTemp = mpContext; + mpContext = mpContext->getParent(); + delete pTemp; + } + else + { + SAL_WARN( "ucb.ucp.webdav", "Parser context pop without context (!)"); + } + } + + public: + explicit WebDAVResponseParser(WebDAVResponseParserMode eWebDAVResponseParserMode); + virtual ~WebDAVResponseParser() override; + + // Methods XDocumentHandler + virtual void SAL_CALL startDocument( ) override; + virtual void SAL_CALL endDocument( ) override; + virtual void SAL_CALL startElement( const OUString& aName, const uno::Reference< xml::sax::XAttributeList >& xAttribs ) override; + virtual void SAL_CALL endElement( const OUString& aName ) override; + virtual void SAL_CALL characters( const OUString& aChars ) override; + virtual void SAL_CALL ignorableWhitespace( const OUString& aWhitespaces ) override; + virtual void SAL_CALL processingInstruction( const OUString& aTarget, const OUString& aData ) override; + virtual void SAL_CALL setDocumentLocator( const uno::Reference< xml::sax::XLocator >& xLocator ) override; + + const std::vector< ucb::Lock >& getResult_Lock() const { return maResult_Lock; } + const std::vector< http_dav_ucp::DAVResource >& getResult_PropFind() const { return maResult_PropFind; } + const std::vector< http_dav_ucp::DAVResourceInfo >& getResult_PropName() const { return maResult_PropName; } + }; + + WebDAVResponseParser::WebDAVResponseParser(WebDAVResponseParserMode eWebDAVResponseParserMode) + : maResult_PropFind(), + maResult_PropName(), + mpContext(nullptr), + maHref(), + maStatus(), + maResponseProperties(), + maPropStatProperties(), + maResponseNames(), + maPropStatNames(), + maLockEntries(), + maLockScope(ucb::LockScope_EXCLUSIVE), + maLockType(ucb::LockType_WRITE), + meWebDAVResponseParserMode(eWebDAVResponseParserMode), + mbResourceTypeCollection(false), + mbLockScopeSet(false), + mbLockTypeSet(false) + { + } + + WebDAVResponseParser::~WebDAVResponseParser() + { + SAL_WARN_IF(mpContext, "ucb.ucp.webdav", "Parser destructed with existing content (!)"); + while(mpContext) + { + pop_context(); + } + } + + void SAL_CALL WebDAVResponseParser::startDocument( ) + { + SAL_WARN_IF(mpContext, "ucb.ucp.webdav", "Parser start with existing content (!)"); + } + + void SAL_CALL WebDAVResponseParser::endDocument( ) + { + SAL_WARN_IF(mpContext, "ucb.ucp.webdav", "Parser end with existing content (!)"); + } + + void SAL_CALL WebDAVResponseParser::startElement( const OUString& aName, const uno::Reference< xml::sax::XAttributeList >& xAttribs ) + { + const sal_Int32 nLen(aName.getLength()); + + if(nLen) + { + // create new context (push) + mpContext = new WebDAVContext(mpContext, aName, xAttribs); + + if(collectThisPropertyAsName()) + { + // When collecting property names and parent is prop there is no need + // to handle the content of this property deeper (evtl. preparations) + } + else + { + switch(mpContext->getWebDAVNamespace()) + { + default: // WebDAVNamespace_unknown, WebDAVNamespace_last or unhandled + { + break; + } + case WebDAVNamespace_DAV: + { + switch(mpContext->getWebDAVName()) + { + default: // WebDAVName_unknown, WebDAVName_last or unhandled + { + break; + } + case WebDAVName_propstat: + { + // propstat start + if(isCollectingProperties()) + { + // reset maPropStatProperties + maPropStatProperties.clear(); + } + else + { + // when collecting properties reset maPropStatNames + maPropStatNames.clear(); + } + break; + } + case WebDAVName_response: + { + // response start, reset Href and status and maResponseProperties + maHref.clear(); + maStatus.clear(); + + if(isCollectingProperties()) + { + // reset maResponseProperties + maResponseProperties.clear(); + } + else + { + // reset maResponseNames when collecting properties + maResponseNames.clear(); + } + break; + } + case WebDAVName_resourcetype: + { + // resourcetype start, reset collection + mbResourceTypeCollection = false; + break; + } + case WebDAVName_supportedlock: + { + // supportedlock start, reset maLockEntries + maLockEntries.realloc(0); + break; + } + case WebDAVName_lockentry: + { + // lockentry start, reset maLockEntries + mbLockScopeSet = false; + mbLockTypeSet = false; + break; + } + case WebDAVName_activelock: + { + maLock = ucb::Lock(); + break; + } + } + break; + } + case WebDAVNamespace_ucb_openoffice_org_dav_props: + { + break; + } + } + } + } + } + + void SAL_CALL WebDAVResponseParser::endElement( const OUString& aName ) + { + const sal_Int32 nLen(aName.getLength()); + SAL_WARN_IF(!mpContext, "ucb.ucp.webdav", "Parser EndElement without content (!)"); + + if(mpContext && nLen) + { + if(collectThisPropertyAsName()) + { + // When collecting property names and parent is prop, just append the prop name + // to the collection, no need to parse deeper + maPropStatNames.push_back(mpContext->getNamespace() + mpContext->getName()); + } + else + { + switch(mpContext->getWebDAVNamespace()) + { + default: // WebDAVNamespace_unknown, WebDAVNamespace_last or unhandled + { + break; + } + case WebDAVNamespace_DAV: + { + switch(mpContext->getWebDAVName()) + { + default: // WebDAVName_unknown, WebDAVName_last or unhandled + { + break; + } + case WebDAVName_href: + { + // href end, save it if we have whitespace + if(whitespaceIsAvailable()) + { + maHref = mpContext->getWhiteSpace(); + } + break; + } + case WebDAVName_status: + { + // status end, save it if we have whitespace + if(whitespaceIsAvailable()) + { + maStatus = mpContext->getWhiteSpace(); + } + break; + } + case WebDAVName_getlastmodified: + { + // getlastmodified end, safe if content is correct + if(propertyIsReady()) + { + http_dav_ucp::DAVPropertyValue aDAVPropertyValue; + + aDAVPropertyValue.Name = "DAV:getlastmodified"; + aDAVPropertyValue.Value <<= mpContext->getWhiteSpace(); + maPropStatProperties.push_back(aDAVPropertyValue); + } + break; + } + case WebDAVName_creationdate: + { + // creationdate end, safe if content is correct + if(propertyIsReady()) + { + http_dav_ucp::DAVPropertyValue aDAVPropertyValue; + + aDAVPropertyValue.Name = "DAV:creationdate"; + aDAVPropertyValue.Value <<= mpContext->getWhiteSpace(); + maPropStatProperties.push_back(aDAVPropertyValue); + } + break; + } + case WebDAVName_collection: + { + // collection end, check and set + if(hasParent(WebDAVName_resourcetype)) + { + mbResourceTypeCollection = true; + } + break; + } + case WebDAVName_resourcetype: + { + // resourcetype end, check for collection + if(hasParent(WebDAVName_prop)) + { + http_dav_ucp::DAVPropertyValue aDAVPropertyValue; + + aDAVPropertyValue.Name = "DAV:resourcetype"; + aDAVPropertyValue.Value <<= (mbResourceTypeCollection ? OUString("collection") : OUString()); + maPropStatProperties.push_back(aDAVPropertyValue); + } + break; + } + case WebDAVName_getcontentlength: + { + // getcontentlength end, safe if content is correct + if(propertyIsReady()) + { + http_dav_ucp::DAVPropertyValue aDAVPropertyValue; + + aDAVPropertyValue.Name = "DAV:getcontentlength"; + aDAVPropertyValue.Value <<= mpContext->getWhiteSpace(); + maPropStatProperties.push_back(aDAVPropertyValue); + } + break; + } + case WebDAVName_getcontenttype: + { + // getcontenttype end, safe if content is correct + if(propertyIsReady()) + { + http_dav_ucp::DAVPropertyValue aDAVPropertyValue; + + aDAVPropertyValue.Name = "DAV:getcontenttype"; + aDAVPropertyValue.Value <<= mpContext->getWhiteSpace(); + maPropStatProperties.push_back(aDAVPropertyValue); + } + break; + } + case WebDAVName_supportedlock: + { + // supportedlock end + if(hasParent(WebDAVName_prop) && maLockEntries.hasElements()) + { + http_dav_ucp::DAVPropertyValue aDAVPropertyValue; + + aDAVPropertyValue.Name = "DAV:supportedlock"; + aDAVPropertyValue.Value <<= maLockEntries; + maPropStatProperties.push_back(aDAVPropertyValue); + } + break; + } + case WebDAVName_lockentry: + { + // lockentry end + if(hasParent(WebDAVName_supportedlock) && (mbLockScopeSet && mbLockTypeSet)) + { + const sal_Int32 nLength(maLockEntries.getLength()); + ucb::LockEntry aEntry; + + aEntry.Scope = maLockScope; + aEntry.Type = maLockType; + maLockEntries.realloc(nLength + 1); + maLockEntries[nLength] = aEntry; + } + break; + } + case WebDAVName_owner: + { + maLock.Owner <<= mpContext->getWhiteSpace(); + break; + } + case WebDAVName_timeout: + { + const OUString sTimeout(mpContext->getWhiteSpace()); + if (sTimeout == "Infinite") + maLock.Timeout = -1; + else if (sTimeout.startsWith("Second-")) + maLock.Timeout = sTimeout.copy(7).toInt64(); + break; + } + case WebDAVName_locktoken: + { + const OUString sLockToken(maHref); + SAL_WARN_IF(!sLockToken.startsWith("opaquelocktoken:"), "ucb.ucp.webdav", + "Parser error: wrong 'locktoken' value."); + const sal_Int32 nLength(maLock.LockTokens.getLength()); + maLock.LockTokens.realloc(nLength+1); + maLock.LockTokens[nLength] = sLockToken; + break; + } + case WebDAVName_exclusive: + { + // exclusive lockscope end + if(hasParent(WebDAVName_lockscope)) + { + maLockScope = ucb::LockScope_EXCLUSIVE; + mbLockScopeSet = true; + } + break; + } + case WebDAVName_shared: + { + // shared lockscope end + if(hasParent(WebDAVName_lockscope)) + { + maLockScope = ucb::LockScope_SHARED; + mbLockScopeSet = true; + } + break; + } + case WebDAVName_write: + { + // write locktype end + if(hasParent(WebDAVName_locktype)) + { + maLockType = ucb::LockType_WRITE; + mbLockTypeSet = true; + } + break; + } + case WebDAVName_activelock: + { + maLock.Type = maLockType; + maLock.Scope = maLockScope; + maResult_Lock.push_back(maLock); + } + [[fallthrough]]; // I hope intentional? + case WebDAVName_propstat: + { + // propstat end, check status + if(maStatus.getLength()) + { + if(maStatus == "HTTP/1.1 200 OK") + { + if(isCollectingProperties()) + { + if(!maPropStatProperties.empty()) + { + // append to maResponseProperties if okay + maResponseProperties.insert(maResponseProperties.end(), maPropStatProperties.begin(), maPropStatProperties.end()); + } + } + else + { + if(!maPropStatNames.empty()) + { + // when collecting properties append to + maResponseNames.insert(maResponseNames.end(), maPropStatNames.begin(), maPropStatNames.end()); + } + } + } + } + break; + } + case WebDAVName_response: + { + // response end + if(maHref.getLength()) + { + if(isCollectingProperties()) + { + // create DAVResource when we have content + if(!maResponseProperties.empty()) + { + http_dav_ucp::DAVResource aDAVResource; + + aDAVResource.uri = maHref; + aDAVResource.properties = maResponseProperties; + maResult_PropFind.push_back(aDAVResource); + } + } + else + { + // when collecting properties add them to result when there are some + if(!maResponseNames.empty()) + { + http_dav_ucp::DAVResourceInfo aDAVResourceInfo(maHref); + + aDAVResourceInfo.properties = maResponseNames; + maResult_PropName.push_back(aDAVResourceInfo); + } + } + } + break; + } + } + break; + } + case WebDAVNamespace_ucb_openoffice_org_dav_props: + { + break; + } + } + } + + // destroy last context (pop) + pop_context(); + } + } + + void SAL_CALL WebDAVResponseParser::characters( const OUString& aChars ) + { + // collect whitespace over evtl. several calls in mpContext + SAL_WARN_IF(!mpContext, "ucb.ucp.webdav", "Parser characters without content (!)"); + const sal_Int32 nLen(aChars.getLength()); + + if(mpContext && nLen) + { + // remove leading/trailing blanks and CRLF + const OUString aTrimmedChars(aChars.trim()); + + if(aTrimmedChars.getLength()) + { + OUString aNew(mpContext->getWhiteSpace()); + + if(aNew.getLength()) + { + // add one char when appending (see html1.1 spec) + aNew += " "; + } + + aNew += aTrimmedChars; + mpContext->setWhiteSpace(aNew); + } + } + } + + void SAL_CALL WebDAVResponseParser::ignorableWhitespace( const OUString& /*aWhitespaces*/ ) + { + } + + void SAL_CALL WebDAVResponseParser::processingInstruction( const OUString& /*aTarget*/, const OUString& /*aData*/ ) + { + } + + void SAL_CALL WebDAVResponseParser::setDocumentLocator( const uno::Reference< xml::sax::XLocator >& /*xLocator*/ ) + { + } +} // end of anonymous namespace + + +// wrapper for various calls to the parser + +namespace +{ + template<typename T> + void parseWebDAVResponse( + const uno::Reference< io::XInputStream >& xInputStream, + std::vector< T >& rResult, + WebDAVResponseParserMode eWebDAVResponseParserMode, + std::vector<T> const & (WebDAVResponseParser::* fn)() const) + { + if(xInputStream.is()) + { + try + { + // prepare ParserInputSrouce + xml::sax::InputSource myInputSource; + myInputSource.aInputStream = xInputStream; + + // get parser + uno::Reference< xml::sax::XParser > xParser = xml::sax::Parser::create( + comphelper::getProcessComponentContext() ); + + // create parser; connect parser and filter + WebDAVResponseParser* pWebDAVResponseParser = new WebDAVResponseParser(eWebDAVResponseParserMode); + uno::Reference< xml::sax::XDocumentHandler > xWebDAVHdl(pWebDAVResponseParser); + xParser->setDocumentHandler(xWebDAVHdl); + + // finally, parse the stream + xParser->parseStream(myInputSource); + + // get result + rResult = (pWebDAVResponseParser->*fn)(); + } + catch(uno::Exception&) + { + SAL_WARN("ucb.ucp.webdav", "WebDAV Parse error (!)"); + } + } + } +} // end of anonymous namespace + + +// helper to parse a XML WebDAV response + +namespace http_dav_ucp +{ + std::vector< ucb::Lock > parseWebDAVLockResponse(const uno::Reference< io::XInputStream >& xInputStream) + { + std::vector< ucb::Lock > aResult; + parseWebDAVResponse< ucb::Lock >(xInputStream, aResult, WebDAVResponseParserMode_Lock, &WebDAVResponseParser::getResult_Lock); + return aResult; + } + + std::vector< DAVResource > parseWebDAVPropFindResponse(const uno::Reference< io::XInputStream >& xInputStream) + { + std::vector< DAVResource > aResult; + parseWebDAVResponse< DAVResource >(xInputStream, aResult, WebDAVResponseParserMode_PropFind, &WebDAVResponseParser::getResult_PropFind); + return aResult; + } + + std::vector< DAVResourceInfo > parseWebDAVPropNameResponse(const uno::Reference< io::XInputStream >& xInputStream) + { + std::vector< DAVResourceInfo > aResult; + parseWebDAVResponse< DAVResourceInfo >(xInputStream, aResult, WebDAVResponseParserMode_PropName, &WebDAVResponseParser::getResult_PropName); + return aResult; + } +} // namespace http_dav_ucp + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |