1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 25 #include <com/sun/star/uno/XComponentContext.hpp> 26 27 #include <rtl/ref.hxx> 28 #include <rtl/ustring.hxx> 29 #include <osl/conditn.hxx> 30 #include <osl/file.h> 31 32 struct DownloadInteractionHandler : public rtl::IReference 33 { 34 virtual bool checkDownloadDestination(const rtl::OUString& rFileName) = 0; 35 36 // called if the destination file already exists, but resume is false 37 virtual bool downloadTargetExists(const rtl::OUString& rFileName) = 0; 38 39 // called when curl reports an error 40 virtual void downloadStalled(const rtl::OUString& rErrorMessage) = 0; 41 42 // progress handler 43 virtual void downloadProgressAt(sal_Int8 nPercent) = 0; 44 45 // called on first progress notification 46 virtual void downloadStarted(const rtl::OUString& rFileName, sal_Int64 nFileSize) = 0; 47 48 // called when download has been finished 49 virtual void downloadFinished(const rtl::OUString& rFileName) = 0; 50 }; 51 52 53 class Download 54 { 55 public: Download(const com::sun::star::uno::Reference<com::sun::star::uno::XComponentContext> & xContext,const rtl::Reference<DownloadInteractionHandler> & rHandler)56 Download(const com::sun::star::uno::Reference< com::sun::star::uno::XComponentContext >& xContext, 57 const rtl::Reference< DownloadInteractionHandler >& rHandler) : m_xContext(xContext), m_aHandler(rHandler) {}; 58 59 // returns true when the content of rURL was successfully written to rLocalFile 60 bool start(const rtl::OUString& rURL, const rtl::OUString& rFile, const rtl::OUString& rDestinationDir); 61 62 // stops the download after the next write operation 63 void stop(); 64 65 // returns true if the stop condition is set isStopped() const66 bool isStopped() const 67 { return sal_True == const_cast <Download *> (this)->m_aCondition.check(); }; 68 69 protected: 70 71 // Determines the appropriate proxy settings for the given URL. Returns true if a proxy should be used 72 void getProxyForURL(const rtl::OUString& rURL, rtl::OString& rHost, sal_Int32& rPort) const; 73 74 private: 75 osl::Condition m_aCondition; 76 const com::sun::star::uno::Reference< com::sun::star::uno::XComponentContext >& m_xContext; 77 const rtl::Reference< DownloadInteractionHandler > m_aHandler; 78 }; 79 80 81