642 lines
22 KiB
C++
642 lines
22 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org 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 Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#define UNICODE
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#define _UNICODE
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#ifndef WIN32_LEAN_AND_MEAN
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# define WIN32_LEAN_AND_MEAN
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# ifdef _MSC_VER
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# pragma warning(push,1) /* disable warnings within system headers */
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# endif
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# include <windows.h>
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# ifdef _MSC_VER
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# pragma warning(pop)
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# endif
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# include <tchar.h>
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# undef WIN32_LEAN_AND_MEAN
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#endif
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#include "procimpl.h"
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#include <rtl/ustring.hxx>
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#include <rtl/ustrbuf.hxx>
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#include "secimpl.h"
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#include "rtl/allocator.hxx"
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#include <osl/file.hxx>
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#include <list>
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#include <vector>
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#include <algorithm>
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#include <string>
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//#################################################
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extern "C" oslFileHandle SAL_CALL osl_createFileHandleFromOSHandle( HANDLE hFile, sal_uInt32 uFlags );
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//#################################################
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const sal_Unicode NAME_VALUE_SEPARATOR = TEXT('=');
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const sal_Char* SPACE = " ";
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const rtl::OUString ENV_COMSPEC (RTL_CONSTASCII_USTRINGPARAM("COMSPEC"));
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const rtl::OUString QUOTE(RTL_CONSTASCII_USTRINGPARAM("\""));
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namespace /* private */
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{
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//#################################################
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typedef std::list<rtl::OUString> string_container_t;
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typedef string_container_t::iterator string_container_iterator_t;
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typedef string_container_t::const_iterator string_container_const_iterator_t;
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typedef std::pair<string_container_iterator_t, string_container_iterator_t> iterator_pair_t;
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typedef std::vector<sal_Unicode> environment_container_t;
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//#################################################
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/* Function object that compares two strings that are
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expected to be environment variables in the form
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"name=value". Only the 'name' part will be compared.
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The comparison is in upper case and returns true
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if the first of both strings is less than the
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second one. */
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struct less_environment_variable :
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public std::binary_function<rtl::OUString, rtl::OUString, bool>
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{
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bool operator() (const rtl::OUString& lhs, const rtl::OUString& rhs) const
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{
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OSL_ENSURE((lhs.indexOf(NAME_VALUE_SEPARATOR) > -1) && \
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(rhs.indexOf(NAME_VALUE_SEPARATOR) > -1), \
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"Malformed environment variable");
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// Windows compares environment variables uppercase
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// so we do it, too
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return (rtl_ustr_compare_WithLength(
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lhs.toAsciiUpperCase().pData->buffer,
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lhs.indexOf(NAME_VALUE_SEPARATOR),
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rhs.toAsciiUpperCase().pData->buffer,
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rhs.indexOf(NAME_VALUE_SEPARATOR)) < 0);
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}
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};
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//#################################################
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/* Function object used by for_each algorithm to
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calculate the sum of the length of all strings
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in a string container. */
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class sum_of_string_lengths
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{
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public:
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//--------------------------------
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sum_of_string_lengths() : sum_(0) {}
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//--------------------------------
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void operator() (const rtl::OUString& string)
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{
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OSL_ASSERT(string.getLength());
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// always include the terminating '\0'
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if (string.getLength())
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sum_ += string.getLength() + 1;
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}
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//--------------------------------
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operator size_t () const
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{
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return sum_;
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}
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private:
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size_t sum_;
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};
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//#################################################
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inline size_t calc_sum_of_string_lengths(const string_container_t& string_cont)
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{
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return std::for_each(
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string_cont.begin(), string_cont.end(), sum_of_string_lengths());
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}
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//#################################################
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void read_environment(/*out*/ string_container_t* environment)
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{
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// GetEnvironmentStrings returns a sorted list, Windows
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// sorts environment variables upper case
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LPTSTR env = reinterpret_cast<LPTSTR>(GetEnvironmentStrings());
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LPTSTR p = env;
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while (size_t l = _tcslen(p))
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{
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environment->push_back(reinterpret_cast<const sal_Unicode*>(p));
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p += l + 1;
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}
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FreeEnvironmentStrings(env);
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}
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//#################################################
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/* the environment list must be sorted, new values
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should either replace existing ones or should be
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added to the list, environment variables will
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be handled case-insensitive */
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bool create_merged_environment(
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rtl_uString* env_vars[],
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sal_uInt32 env_vars_count,
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/*in|out*/ string_container_t* merged_env)
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{
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OSL_ASSERT(env_vars && env_vars_count > 0 && merged_env);
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read_environment(merged_env);
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for (sal_uInt32 i = 0; i < env_vars_count; i++)
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{
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rtl::OUString env_var = rtl::OUString(env_vars[i]);
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if (env_var.getLength() == 0)
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return false;
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iterator_pair_t iter_pair = std::equal_range(
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merged_env->begin(),
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merged_env->end(),
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env_var,
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less_environment_variable());
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if (env_var.indexOf(NAME_VALUE_SEPARATOR) == -1)
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{
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merged_env->erase(iter_pair.first, iter_pair.second);
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}
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else
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{
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if (iter_pair.first != iter_pair.second) // found
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*iter_pair.first = env_var;
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else // not found
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merged_env->insert(iter_pair.first, env_var);
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}
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}
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return true;
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}
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//#################################################
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/* Create a merged environment */
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bool setup_process_environment(
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rtl_uString* environment_vars[],
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sal_uInt32 n_environment_vars,
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/*in|out*/ environment_container_t& environment)
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{
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string_container_t merged_env;
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if (!create_merged_environment(environment_vars, n_environment_vars, &merged_env))
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return false;
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// allocate enough space for the '\0'-separated environment strings and
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// a final '\0'
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environment.resize(calc_sum_of_string_lengths(merged_env) + 1);
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string_container_const_iterator_t iter = merged_env.begin();
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string_container_const_iterator_t iter_end = merged_env.end();
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sal_uInt32 pos = 0;
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for (/**/; iter != iter_end; ++iter)
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{
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rtl::OUString envv = *iter;
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OSL_ASSERT(envv.getLength());
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sal_uInt32 n = envv.getLength() + 1; // copy the final '\0', too
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rtl_copyMemory(
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reinterpret_cast<void*>(&environment[pos]),
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reinterpret_cast<const void*>(envv.getStr()),
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n * sizeof(sal_Unicode));
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pos += n;
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}
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environment[pos] = 0; // append a final '\0'
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return true;
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}
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//##########################################################
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/* In contrast to the Win32 API function CreatePipe with
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this function the caller is able to determine separately
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which handle of the pipe is inheritable. */
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bool create_pipe(
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PHANDLE p_read_pipe,
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bool b_read_pipe_inheritable,
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PHANDLE p_write_pipe,
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bool b_write_pipe_inheritable,
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LPVOID p_security_descriptor = NULL,
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DWORD pipe_size = 0)
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{
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SECURITY_ATTRIBUTES sa;
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sa.nLength = sizeof(SECURITY_ATTRIBUTES);
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sa.lpSecurityDescriptor = p_security_descriptor;
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sa.bInheritHandle = b_read_pipe_inheritable || b_write_pipe_inheritable;
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BOOL bRet = FALSE;
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HANDLE hTemp = NULL;
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if (!b_read_pipe_inheritable && b_write_pipe_inheritable)
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{
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bRet = CreatePipe(&hTemp, p_write_pipe, &sa, pipe_size);
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if (bRet && !DuplicateHandle(GetCurrentProcess(), hTemp,
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GetCurrentProcess(), p_read_pipe, 0, FALSE,
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DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS))
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{
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CloseHandle(hTemp);
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CloseHandle(*p_read_pipe);
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return false;
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}
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}
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else if (b_read_pipe_inheritable && !b_write_pipe_inheritable)
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{
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bRet = CreatePipe(p_read_pipe, &hTemp, &sa, pipe_size);
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if (bRet && !DuplicateHandle(GetCurrentProcess(), hTemp,
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GetCurrentProcess(), p_write_pipe, 0, FALSE,
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DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS))
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{
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CloseHandle(hTemp);
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CloseHandle(*p_write_pipe);
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return false;
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}
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}
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else
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{
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bRet = CreatePipe(p_read_pipe, p_write_pipe, &sa, pipe_size);
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}
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return bRet;
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}
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//#########################################################
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// Add a quote sign to the start and the end of a string
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// if not already present
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rtl::OUString quote_string(const rtl::OUString& string)
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{
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rtl::OUStringBuffer quoted;
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if (string.indexOf(QUOTE) != 0)
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quoted.append(QUOTE);
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quoted.append(string);
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if (string.lastIndexOf(QUOTE) != (string.getLength() - 1))
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quoted.append(QUOTE);
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return quoted.makeStringAndClear();
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}
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//The parameter path must be a system path. If it is longer than 260 characters
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//then it is shortened using the GetShortPathName function. This function only
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//works if the path exists. Because "path" can be the path to an executable, it
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//may not have the file extension ".exe". However, if the file on disk has the
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//".exe" extension, then the function will fail. In this case a second attempt
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//is started by adding the parameter "extension" to "path".
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rtl::OUString getShortPath(rtl::OUString const & path, rtl::OUString const & extension)
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{
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rtl::OUString ret(path);
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if (path.getLength() > 260)
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{
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std::vector<sal_Unicode> vec(path.getLength() + 1);
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//GetShortPathNameW only works if the file can be found!
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const DWORD len = GetShortPathNameW(
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reinterpret_cast<LPCWSTR>(path.getStr()), reinterpret_cast<LPWSTR>(&vec[0]), path.getLength() + 1);
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if (!len && GetLastError() == ERROR_FILE_NOT_FOUND
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&& extension.getLength())
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{
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const rtl::OUString extPath(path + extension);
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std::vector<sal_Unicode> vec2(
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extPath.getLength() + 1);
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const DWORD len2 = GetShortPathNameW(
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reinterpret_cast<LPCWSTR>(extPath.getStr()), reinterpret_cast<LPWSTR>(&vec2[0]), extPath.getLength() + 1);
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ret = rtl::OUString(&vec2[0], len2);
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}
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else
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{
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ret = rtl::OUString(&vec[0], len);
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}
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}
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return ret;
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}
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//##########################################################
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// Returns the system path of the executable which can either
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// be provided via the strImageName parameter or as first
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// element of the strArguments list.
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// The returned path will be quoted if it contains spaces.
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rtl::OUString get_executable_path(
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rtl_uString* image_name,
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rtl_uString* cmdline_args[],
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sal_uInt32 n_cmdline_args,
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bool search_path)
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{
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rtl::OUString exe_name;
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if (image_name)
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exe_name = image_name;
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else if (n_cmdline_args)
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exe_name = rtl::OUString(cmdline_args[0]);
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rtl::OUString exe_url = exe_name;
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if (search_path)
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osl_searchFileURL(exe_name.pData, NULL, &exe_url.pData);
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rtl::OUString exe_path;
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if (osl_File_E_None != osl::FileBase::getSystemPathFromFileURL(exe_url, exe_path))
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return rtl::OUString();
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exe_path = getShortPath(exe_path, rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(".exe")));
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if (exe_path.indexOf(' ') != -1)
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exe_path = quote_string(exe_path);
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return exe_path;
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}
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//##########################################################
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rtl::OUString get_file_extension(const rtl::OUString& file_name)
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{
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sal_Int32 index = file_name.lastIndexOf('.');
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if ((index != -1) && ((index + 1) < file_name.getLength()))
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return file_name.copy(index + 1);
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return rtl::OUString();
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}
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//##########################################################
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bool is_batch_file(const rtl::OUString& file_name)
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{
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rtl::OUString ext = get_file_extension(file_name);
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return (ext.equalsIgnoreAsciiCaseAscii("bat") ||
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ext.equalsIgnoreAsciiCaseAscii("cmd") ||
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ext.equalsIgnoreAsciiCaseAscii("btm"));
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}
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//##########################################################
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rtl::OUString get_batch_processor()
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{
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rtl::OUString comspec;
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osl_getEnvironment(ENV_COMSPEC.pData, &comspec.pData);
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OSL_ASSERT(comspec.getLength());
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/* check if comspec path contains blanks and quote it if any */
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if (comspec.indexOf(' ') != -1)
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comspec = quote_string(comspec);
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return comspec;
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}
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} // namespace private
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//#################################################
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oslProcessError SAL_CALL osl_executeProcess(
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rtl_uString *strImageName,
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rtl_uString *strArguments[],
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sal_uInt32 nArguments,
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oslProcessOption Options,
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oslSecurity Security,
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rtl_uString *strDirectory,
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rtl_uString *strEnvironmentVars[],
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sal_uInt32 nEnvironmentVars,
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oslProcess *pProcess
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)
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{
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return osl_executeProcess_WithRedirectedIO(
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strImageName,
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strArguments,
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nArguments,
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Options,
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Security,
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strDirectory,
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strEnvironmentVars,
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nEnvironmentVars,
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pProcess,
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NULL, NULL, NULL );
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}
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//#################################################
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oslProcessError SAL_CALL osl_executeProcess_WithRedirectedIO(
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rtl_uString *ustrImageName,
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rtl_uString *ustrArguments[],
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sal_uInt32 nArguments,
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oslProcessOption Options,
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oslSecurity Security,
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rtl_uString *ustrDirectory,
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rtl_uString *ustrEnvironmentVars[],
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sal_uInt32 nEnvironmentVars,
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oslProcess *pProcess,
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oslFileHandle *pProcessInputWrite,
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oslFileHandle *pProcessOutputRead,
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oslFileHandle *pProcessErrorRead)
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{
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rtl::OUString exe_path = get_executable_path(
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ustrImageName, ustrArguments, nArguments, (Options & osl_Process_SEARCHPATH));
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if (0 == exe_path.getLength())
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return osl_Process_E_NotFound;
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if (pProcess == NULL)
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return osl_Process_E_InvalidError;
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DWORD flags = NORMAL_PRIORITY_CLASS;
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rtl::OUStringBuffer command_line;
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if (is_batch_file(exe_path))
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{
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rtl::OUString batch_processor = get_batch_processor();
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if (batch_processor.getLength())
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{
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/* cmd.exe does not work without a console window */
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if (!(Options & osl_Process_WAIT) || (Options & osl_Process_DETACHED))
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flags |= CREATE_NEW_CONSOLE;
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command_line.append(batch_processor);
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command_line.appendAscii(" /c ");
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}
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else
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// should we return here in case of error?
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return osl_Process_E_Unknown;
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}
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command_line.append(exe_path);
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/* Add remaining arguments to command line. If ustrImageName is NULL
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the first parameter is the name of the executable so we have to
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start at 1 instead of 0 */
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for (sal_uInt32 n = (NULL != ustrImageName) ? 0 : 1; n < nArguments; n++)
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{
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command_line.appendAscii(SPACE);
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/* Quote arguments containing blanks */
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if (rtl::OUString(ustrArguments[n]).indexOf(' ') != -1)
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command_line.append(quote_string(ustrArguments[n]));
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else
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command_line.append(ustrArguments[n]);
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}
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environment_container_t environment;
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LPVOID p_environment = NULL;
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if (nEnvironmentVars && ustrEnvironmentVars)
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{
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if (!setup_process_environment(
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ustrEnvironmentVars, nEnvironmentVars, environment))
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return osl_Process_E_InvalidError;
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flags |= CREATE_UNICODE_ENVIRONMENT;
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p_environment = &environment[0];
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}
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rtl::OUString cwd;
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if (ustrDirectory && ustrDirectory->length && (osl_File_E_None != osl::FileBase::getSystemPathFromFileURL(ustrDirectory, cwd)))
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return osl_Process_E_InvalidError;
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LPCWSTR p_cwd = (cwd.getLength()) ? reinterpret_cast<LPCWSTR>(cwd.getStr()) : NULL;
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if ((Options & osl_Process_DETACHED) && !(flags & CREATE_NEW_CONSOLE))
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flags |= DETACHED_PROCESS;
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STARTUPINFO startup_info;
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memset(&startup_info, 0, sizeof(STARTUPINFO));
|
|
|
|
startup_info.cb = sizeof(STARTUPINFO);
|
|
startup_info.dwFlags = STARTF_USESHOWWINDOW;
|
|
startup_info.lpDesktop = L"";
|
|
|
|
/* Create pipes for redirected IO */
|
|
HANDLE hInputRead = NULL;
|
|
HANDLE hInputWrite = NULL;
|
|
if (pProcessInputWrite && create_pipe(&hInputRead, true, &hInputWrite, false))
|
|
startup_info.hStdInput = hInputRead;
|
|
|
|
HANDLE hOutputRead = NULL;
|
|
HANDLE hOutputWrite = NULL;
|
|
if (pProcessOutputRead && create_pipe(&hOutputRead, false, &hOutputWrite, true))
|
|
startup_info.hStdOutput = hOutputWrite;
|
|
|
|
HANDLE hErrorRead = NULL;
|
|
HANDLE hErrorWrite = NULL;
|
|
if (pProcessErrorRead && create_pipe(&hErrorRead, false, &hErrorWrite, true))
|
|
startup_info.hStdError = hErrorWrite;
|
|
|
|
bool b_inherit_handles = false;
|
|
if (pProcessInputWrite || pProcessOutputRead || pProcessErrorRead)
|
|
{
|
|
startup_info.dwFlags |= STARTF_USESTDHANDLES;
|
|
b_inherit_handles = true;
|
|
}
|
|
|
|
switch(Options & (osl_Process_NORMAL | osl_Process_HIDDEN | osl_Process_MINIMIZED | osl_Process_MAXIMIZED | osl_Process_FULLSCREEN))
|
|
{
|
|
case osl_Process_HIDDEN:
|
|
startup_info.wShowWindow = SW_HIDE;
|
|
flags |= CREATE_NO_WINDOW; // ignored for non-console
|
|
// applications; ignored on
|
|
// Win9x
|
|
break;
|
|
|
|
case osl_Process_MINIMIZED:
|
|
startup_info.wShowWindow = SW_MINIMIZE;
|
|
break;
|
|
|
|
case osl_Process_MAXIMIZED:
|
|
case osl_Process_FULLSCREEN:
|
|
startup_info.wShowWindow = SW_MAXIMIZE;
|
|
break;
|
|
|
|
default:
|
|
startup_info.wShowWindow = SW_NORMAL;
|
|
}
|
|
|
|
rtl::OUString cmdline = command_line.makeStringAndClear();
|
|
PROCESS_INFORMATION process_info;
|
|
BOOL bRet = FALSE;
|
|
|
|
if ((Security != NULL) && (((oslSecurityImpl*)Security)->m_hToken != NULL))
|
|
{
|
|
bRet = CreateProcessAsUser(
|
|
((oslSecurityImpl*)Security)->m_hToken,
|
|
NULL, const_cast<LPTSTR>(reinterpret_cast<LPCTSTR>(cmdline.getStr())), NULL, NULL,
|
|
b_inherit_handles, flags, p_environment, p_cwd,
|
|
&startup_info, &process_info);
|
|
}
|
|
else
|
|
{
|
|
bRet = CreateProcess(
|
|
NULL, const_cast<LPTSTR>(reinterpret_cast<LPCTSTR>(cmdline.getStr())), NULL, NULL,
|
|
b_inherit_handles, flags, p_environment, p_cwd,
|
|
&startup_info, &process_info);
|
|
}
|
|
|
|
/* Now we can close the pipe ends that are used by the child process */
|
|
|
|
if (hInputRead)
|
|
CloseHandle(hInputRead);
|
|
|
|
if (hOutputWrite)
|
|
CloseHandle(hOutputWrite);
|
|
|
|
if (hErrorWrite)
|
|
CloseHandle(hErrorWrite);
|
|
|
|
if (bRet)
|
|
{
|
|
CloseHandle(process_info.hThread);
|
|
|
|
oslProcessImpl* pProcImpl = reinterpret_cast<oslProcessImpl*>(
|
|
rtl_allocateMemory(sizeof(oslProcessImpl)));
|
|
|
|
if (pProcImpl != NULL)
|
|
{
|
|
pProcImpl->m_hProcess = process_info.hProcess;
|
|
pProcImpl->m_IdProcess = process_info.dwProcessId;
|
|
|
|
*pProcess = (oslProcess)pProcImpl;
|
|
|
|
if (Options & osl_Process_WAIT)
|
|
WaitForSingleObject(pProcImpl->m_hProcess, INFINITE);
|
|
|
|
if (pProcessInputWrite)
|
|
*pProcessInputWrite = osl_createFileHandleFromOSHandle(hInputWrite, osl_File_OpenFlag_Write);
|
|
|
|
if (pProcessOutputRead)
|
|
*pProcessOutputRead = osl_createFileHandleFromOSHandle(hOutputRead, osl_File_OpenFlag_Read);
|
|
|
|
if (pProcessErrorRead)
|
|
*pProcessErrorRead = osl_createFileHandleFromOSHandle(hErrorRead, osl_File_OpenFlag_Read);
|
|
|
|
return osl_Process_E_None;
|
|
}
|
|
}
|
|
|
|
/* if an error occurred we have to close the server side pipe ends too */
|
|
|
|
if (hInputWrite)
|
|
CloseHandle(hInputWrite);
|
|
|
|
if (hOutputRead)
|
|
CloseHandle(hOutputRead);
|
|
|
|
if (hErrorRead)
|
|
CloseHandle(hErrorRead);
|
|
|
|
return osl_Process_E_Unknown;
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|