1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
|
/* -*- 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 <config_folders.h>
#include <osl/thread.h>
#include <osl/process.h>
#include <osl/file.hxx>
#include <rtl/strbuf.hxx>
#include <rtl/ustrbuf.hxx>
#include <sal/log.hxx>
#include <rtl/uri.hxx>
#include "shellexec.hxx"
#include <com/sun/star/system/SystemShellExecuteException.hpp>
#include <com/sun/star/system/SystemShellExecuteFlags.hpp>
#include <com/sun/star/util/theMacroExpander.hpp>
#include <com/sun/star/uri/ExternalUriReferenceTranslator.hpp>
#include <com/sun/star/uri/UriReferenceFactory.hpp>
#include <cppuhelper/supportsservice.hxx>
#include <comphelper/lok.hxx>
#include <uno/current_context.hxx>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#if defined MACOSX
#include <sys/stat.h>
#endif
using com::sun::star::system::XSystemShellExecute;
using com::sun::star::system::SystemShellExecuteException;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::system::SystemShellExecuteFlags;
using namespace cppu;
namespace
{
Sequence< OUString > ShellExec_getSupportedServiceNames()
{
Sequence< OUString > aRet { "com.sun.star.system.SystemShellExecute" };
return aRet;
}
void escapeForShell( OStringBuffer & rBuffer, const OString & rURL)
{
sal_Int32 nmax = rURL.getLength();
for(sal_Int32 n=0; n < nmax; ++n)
{
// escape every non alpha numeric characters (excluding a few "known good") by prepending a '\'
sal_Char c = rURL[n];
if( ( c < 'A' || c > 'Z' ) && ( c < 'a' || c > 'z' ) && ( c < '0' || c > '9' ) && c != '/' && c != '.' )
rBuffer.append( '\\' );
rBuffer.append( c );
}
}
}
ShellExec::ShellExec( const Reference< XComponentContext >& xContext ) :
WeakImplHelper< XSystemShellExecute, XServiceInfo >(),
m_xContext(xContext)
{
}
void SAL_CALL ShellExec::execute( const OUString& aCommand, const OUString& aParameter, sal_Int32 nFlags )
{
OStringBuffer aBuffer, aLaunchBuffer;
if (comphelper::LibreOfficeKit::isActive())
{
SAL_WARN("shell", "Unusual - shell attempt to launch " << aCommand << " with params " << aParameter << " under lok");
return;
}
// DESKTOP_LAUNCH, see http://freedesktop.org/pipermail/xdg/2004-August/004489.html
static const char *pDesktopLaunch = getenv( "DESKTOP_LAUNCH" );
// Check whether aCommand contains an absolute URI reference:
css::uno::Reference< css::uri::XUriReference > uri(
css::uri::UriReferenceFactory::create(m_xContext)->parse(aCommand));
if (uri.is() && uri->isAbsolute())
{
// It seems to be a URL...
// We need to re-encode file urls because osl_getFileURLFromSystemPath converts
// to UTF-8 before encoding non ascii characters, which is not what other apps
// expect.
OUString aURL = css::uri::ExternalUriReferenceTranslator::create(
m_xContext)->translateToExternal(aCommand);
if ( aURL.isEmpty() && !aCommand.isEmpty() )
{
throw RuntimeException(
"Cannot translate URI reference to external format: "
+ aCommand,
static_cast< cppu::OWeakObject * >(this));
}
#ifdef MACOSX
if (uri->getScheme().equalsIgnoreAsciiCase("file")) {
OUString pathname;
auto const e1 = osl::FileBase::getSystemPathFromFileURL(aCommand, pathname);
if (e1 != osl::FileBase::E_None) {
throw css::lang::IllegalArgumentException(
("XSystemShellExecute.execute, getSystemPathFromFileURL <" + aCommand
+ "> failed with " + OUString::number(e1)),
{}, 0);
}
OString pathname8;
if (!pathname.convertToString(
&pathname8, RTL_TEXTENCODING_UTF8,
(RTL_UNICODETOTEXT_FLAGS_UNDEFINED_ERROR
| RTL_UNICODETOTEXT_FLAGS_INVALID_ERROR)))
{
throw css::lang::IllegalArgumentException(
"XSystemShellExecute.execute, cannot convert \"" + pathname + "\" to UTF-8", {},
0);
}
struct stat st;
auto const e2 = stat(pathname8.getStr(), &st);
if (e2 != 0) {
auto const e3 = errno;
SAL_INFO("shell", "stat(" << pathname8 << ") failed with errno " << e3);
}
if (e2 != 0 || !S_ISREG(st.st_mode)
|| (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)) != 0)
{
throw css::lang::IllegalArgumentException(
"XSystemShellExecute.execute, cannot process <" + aCommand + ">", {}, 0);
}
}
//TODO: Using open(1) with an argument that syntactically is an absolute
// URI reference does not necessarily give expected results:
// 1 If the given URI reference matches a supported scheme (e.g.,
// "mailto:foo"):
// 1.1 If it matches an existing pathname (relative to CWD): Results
// in "mailto:foo?\n[0]\tcancel\n[1]\tOpen the file\tmailto:foo\n[2]\t
// Open the URL\tmailto:foo\n\nWhich did you mean? Cancelled." on
// stderr and SystemShellExecuteException.
// 1.2 If it does not match an exitsting pathname (relative to CWD):
// Results in the corresponding application being opened with the given
// document (e.g., Mail with a New Message).
// 2 If the given URI reference does not match a supported scheme
// (e.g., "foo:bar"):
// 2.1 If it matches an existing pathname (relative to CWD) pointing to
// an executable: Results in execution of that executable.
// 2.2 If it matches an existing pathname (relative to CWD) pointing to
// a non-executable regular file: Results in opening it in TextEdit.
// 2.3 If it matches an existing pathname (relative to CWD) pointing to
// a directory: Results in opening it in Finder.
// 2.4 If it does not match an exitsting pathname (relative to CWD):
// Results in "The file /.../foo:bar does not exits." (where "/..." is
// the CWD) on stderr and SystemShellExecuteException.
aBuffer.append("open --");
#else
// Just use xdg-open on non-Mac
aBuffer.append("/usr/bin/xdg-open");
#endif
aBuffer.append(" ");
escapeForShell(aBuffer, OUStringToOString(aURL, osl_getThreadTextEncoding()));
if ( pDesktopLaunch && *pDesktopLaunch )
{
aLaunchBuffer.append( pDesktopLaunch + OStringLiteral(" "));
escapeForShell(aLaunchBuffer, OUStringToOString(aURL, osl_getThreadTextEncoding()));
}
} else if ((nFlags & css::system::SystemShellExecuteFlags::URIS_ONLY) != 0)
{
throw css::lang::IllegalArgumentException(
"XSystemShellExecute.execute URIS_ONLY with non-absolute"
" URI reference "
+ aCommand,
static_cast< cppu::OWeakObject * >(this), 0);
} else {
escapeForShell(aBuffer, OUStringToOString(aCommand, osl_getThreadTextEncoding()));
aBuffer.append(" ");
if( nFlags != 42 )
escapeForShell(aBuffer, OUStringToOString(aParameter, osl_getThreadTextEncoding()));
else
aBuffer.append(OUStringToOString(aParameter, osl_getThreadTextEncoding()));
}
// Prefer DESKTOP_LAUNCH when available
if ( !aLaunchBuffer.isEmpty() )
{
FILE *pLaunch = popen( aLaunchBuffer.makeStringAndClear().getStr(), "w" );
if ( pLaunch != nullptr )
{
if ( 0 == pclose( pLaunch ) )
return;
}
// Failed, do not try DESKTOP_LAUNCH any more
pDesktopLaunch = nullptr;
}
OString cmd =
#ifdef LINUX
// avoid blocking (call it in background)
"( " + aBuffer.makeStringAndClear() + " ) &";
#else
aBuffer.makeStringAndClear();
#endif
FILE *pLaunch = popen(cmd.getStr(), "w");
if ( pLaunch != nullptr )
{
if ( 0 == pclose( pLaunch ) )
return;
}
int nerr = errno;
throw SystemShellExecuteException(OUString::createFromAscii( strerror( nerr ) ),
static_cast < XSystemShellExecute * > (this), nerr );
}
// XServiceInfo
OUString SAL_CALL ShellExec::getImplementationName( )
{
return "com.sun.star.comp.system.SystemShellExecute";
}
sal_Bool SAL_CALL ShellExec::supportsService( const OUString& ServiceName )
{
return cppu::supportsService(this, ServiceName);
}
Sequence< OUString > SAL_CALL ShellExec::getSupportedServiceNames( )
{
return ShellExec_getSupportedServiceNames();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
