1 /* 2 * This File is part of Davix, The IO library for HTTP based protocols 3 * Copyright (C) CERN 2018 4 * Author: Georgios Bitzes <georgios.bitzes@cern.ch> 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 * 20 */ 21 22 #ifndef S3_IO_HPP 23 #define S3_IO_HPP 24 25 #include <fileops/httpiochain.hpp> 26 27 namespace Davix{ 28 29 struct DynafedUris { 30 std::vector<std::string> chunks; 31 std::string post; 32 }; 33 34 class S3IO : public HttpIOChain { 35 public: 36 S3IO(); 37 ~S3IO(); 38 39 // write the entire content from a file descriptor 40 virtual dav_ssize_t writeFromFd(IOChainContext & iocontext, int fd, dav_size_t size); 41 42 // wirte the entire content from a defined callback 43 virtual dav_ssize_t writeFromCb(IOChainContext & iocontext, const DataProviderFun & func, dav_size_t size); 44 45 void performUgrS3MultiPart(IOChainContext & iocontext, const std::string &posturl, const std::string &pluginId, const DataProviderFun &func, dav_size_t size, DavixError **err); 46 47 private: 48 49 // Returns uploadId 50 std::string initiateMultipart(IOChainContext & iocontext); 51 std::string initiateMultipart(IOChainContext & iocontext, const Uri &url); 52 53 DynafedUris retrieveDynafedUris(IOChainContext & iocontext, const std::string &uploadId, const std::string &pluginId, size_t nchunks); 54 55 // Given the upload id, write the given chunk. Return object ETag, 56 // necessary to commit upload. 57 std::string writeChunk(IOChainContext & iocontext, const char* buff, dav_size_t size, const std::string &uploadId, int partNumber); 58 std::string writeChunk(IOChainContext & iocontext, const char* buff, dav_size_t size, const Uri &uri, int partNumber); 59 60 61 // Given upload id and last chunk, commit chunks 62 void commitChunks(IOChainContext & iocontext, const std::string &uploadId, const std::vector<std::string> &etags); 63 void commitChunks(IOChainContext & iocontext, const Uri &uri, const std::vector<std::string> &etags); 64 }; 65 66 } 67 68 #endif 69