mirror of
https://github.com/uroni/urbackup_backend.git
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159 lines
3.8 KiB
C++
159 lines
3.8 KiB
C++
/*************************************************************************
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* UrBackup - Client/Server backup system
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* Copyright (C) 2011-2016 Martin Raiber
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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**************************************************************************/
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#include "PipeFile.h"
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PipeFile::PipeFile(const std::string& pCmd)
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: PipeFileBase(pCmd),
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hStderr(INVALID_HANDLE_VALUE),
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hStdout(INVALID_HANDLE_VALUE)
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{
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SECURITY_ATTRIBUTES saAttr = {};
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saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
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saAttr.bInheritHandle = TRUE;
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saAttr.lpSecurityDescriptor = NULL;
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HANDLE hStdoutW;
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HANDLE hStderrW;
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if(!CreatePipe(&hStdout, &hStdoutW, &saAttr, 0))
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{
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Server->Log("Error creating stdout pipe", LL_ERROR);
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has_error=true;
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return;
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}
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if(!SetHandleInformation(hStdout, HANDLE_FLAG_INHERIT, 0))
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{
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Server->Log("Error setting handle information on stdout pipe", LL_ERROR);
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has_error=true;
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return;
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}
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if(!CreatePipe(&hStderr, &hStderrW, &saAttr, 0))
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{
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Server->Log("Error creating stderr pipe", LL_ERROR);
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has_error=true;
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return;
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}
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if(!SetHandleInformation(hStderr, HANDLE_FLAG_INHERIT, 0))
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{
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Server->Log("Error setting handle information on stderr pipe", LL_ERROR);
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has_error=true;
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return;
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}
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ZeroMemory( &proc_info, sizeof(PROCESS_INFORMATION) );
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STARTUPINFOW start_info = {};
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start_info.cb = sizeof(STARTUPINFOW);
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start_info.hStdError = hStderrW;
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start_info.hStdOutput = hStdoutW;
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start_info.dwFlags |= STARTF_USESTDHANDLES;
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BOOL b = CreateProcessW(NULL, const_cast<LPWSTR>(Server->ConvertToWchar(getFilename()).c_str()),
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&saAttr, NULL, TRUE, 0, NULL, NULL, &start_info,
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&proc_info);
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if(!b)
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{
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Server->Log("Error starting script \"" + getFilename() + "\"", LL_ERROR);
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has_error=true;
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}
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CloseHandle(hStderrW);
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CloseHandle(hStdoutW);
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init();
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}
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PipeFile::~PipeFile()
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{
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}
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void PipeFile::forceExitWait()
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{
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CloseHandle(hStdout);
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CloseHandle(hStderr);
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TerminateProcess(proc_info.hProcess, 0);
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CloseHandle(proc_info.hProcess);
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CloseHandle(proc_info.hThread);
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waitForExit();
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}
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bool PipeFile::getExitCode(int& exit_code)
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{
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DWORD dwExitCode;
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BOOL b = GetExitCodeProcess(proc_info.hProcess, &dwExitCode);
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if(!b)
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{
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Server->Log("Error getting exit code of process", LL_ERROR);
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return false;
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}
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else
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{
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if( dwExitCode == STILL_ACTIVE )
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{
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Server->Log("Process is still active", LL_ERROR);
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return false;
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}
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exit_code = static_cast<int>(dwExitCode);
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return true;
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}
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}
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bool PipeFile::readStdoutIntoBuffer(char* buf, size_t buf_avail, size_t& read_bytes)
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{
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return readIntoBuffer(hStdout, buf, buf_avail, read_bytes);
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}
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void PipeFile::finishStdout()
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{
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}
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bool PipeFile::readStderrIntoBuffer(char* buf, size_t buf_avail, size_t& read_bytes)
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{
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return readIntoBuffer(hStderr, buf, buf_avail, read_bytes);
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}
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bool PipeFile::readIntoBuffer(HANDLE hStd, char* buf, size_t buf_avail, size_t& read_bytes)
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{
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DWORD dwread = 0;
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BOOL b = ReadFile(hStd, buf, static_cast<DWORD>(buf_avail), &dwread, NULL);
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read_bytes = static_cast<size_t>(dwread);
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if(b)
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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