1*b1cdbd2cSJim Jagielski /**************************************************************
2*b1cdbd2cSJim Jagielski *
3*b1cdbd2cSJim Jagielski * Licensed to the Apache Software Foundation (ASF) under one
4*b1cdbd2cSJim Jagielski * or more contributor license agreements. See the NOTICE file
5*b1cdbd2cSJim Jagielski * distributed with this work for additional information
6*b1cdbd2cSJim Jagielski * regarding copyright ownership. The ASF licenses this file
7*b1cdbd2cSJim Jagielski * to you under the Apache License, Version 2.0 (the
8*b1cdbd2cSJim Jagielski * "License"); you may not use this file except in compliance
9*b1cdbd2cSJim Jagielski * with the License. You may obtain a copy of the License at
10*b1cdbd2cSJim Jagielski *
11*b1cdbd2cSJim Jagielski * http://www.apache.org/licenses/LICENSE-2.0
12*b1cdbd2cSJim Jagielski *
13*b1cdbd2cSJim Jagielski * Unless required by applicable law or agreed to in writing,
14*b1cdbd2cSJim Jagielski * software distributed under the License is distributed on an
15*b1cdbd2cSJim Jagielski * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*b1cdbd2cSJim Jagielski * KIND, either express or implied. See the License for the
17*b1cdbd2cSJim Jagielski * specific language governing permissions and limitations
18*b1cdbd2cSJim Jagielski * under the License.
19*b1cdbd2cSJim Jagielski *
20*b1cdbd2cSJim Jagielski *************************************************************/
21*b1cdbd2cSJim Jagielski
22*b1cdbd2cSJim Jagielski
23*b1cdbd2cSJim Jagielski
24*b1cdbd2cSJim Jagielski // MARKER(update_precomp.py): autogen include statement, do not remove
25*b1cdbd2cSJim Jagielski #include "precompiled_shell.hxx"
26*b1cdbd2cSJim Jagielski
27*b1cdbd2cSJim Jagielski #ifndef INCLUDED_RECENTLY_USED_FILE
28*b1cdbd2cSJim Jagielski #include "recently_used_file.hxx"
29*b1cdbd2cSJim Jagielski #endif
30*b1cdbd2cSJim Jagielski #include <rtl/ustring.hxx>
31*b1cdbd2cSJim Jagielski #include <osl/process.h>
32*b1cdbd2cSJim Jagielski #include <osl/security.hxx>
33*b1cdbd2cSJim Jagielski #include <osl/thread.h>
34*b1cdbd2cSJim Jagielski #include <osl/file.hxx>
35*b1cdbd2cSJim Jagielski
36*b1cdbd2cSJim Jagielski #include <sys/file.h>
37*b1cdbd2cSJim Jagielski #include <sys/types.h>
38*b1cdbd2cSJim Jagielski #include <sys/stat.h>
39*b1cdbd2cSJim Jagielski
40*b1cdbd2cSJim Jagielski #include <unistd.h>
41*b1cdbd2cSJim Jagielski
42*b1cdbd2cSJim Jagielski const rtl::OUString RECENTLY_USED_FILE_NAME = rtl::OUString::createFromAscii(".recently-used");
43*b1cdbd2cSJim Jagielski const rtl::OUString SLASH = rtl::OUString::createFromAscii("/");
44*b1cdbd2cSJim Jagielski
45*b1cdbd2cSJim Jagielski namespace /* private */ {
46*b1cdbd2cSJim Jagielski
ensure_final_slash(rtl::OUString & path)47*b1cdbd2cSJim Jagielski inline void ensure_final_slash(/*inout*/ rtl::OUString& path)
48*b1cdbd2cSJim Jagielski {
49*b1cdbd2cSJim Jagielski if ((path.getLength() > 0) &&
50*b1cdbd2cSJim Jagielski (SLASH.pData->buffer[0] != path.pData->buffer[path.getLength() - 1]))
51*b1cdbd2cSJim Jagielski path += SLASH;
52*b1cdbd2cSJim Jagielski }
53*b1cdbd2cSJim Jagielski
54*b1cdbd2cSJim Jagielski } // namespace private
55*b1cdbd2cSJim Jagielski
56*b1cdbd2cSJim Jagielski //------------------------------------------------
recently_used_file()57*b1cdbd2cSJim Jagielski recently_used_file::recently_used_file() :
58*b1cdbd2cSJim Jagielski file_(NULL)
59*b1cdbd2cSJim Jagielski {
60*b1cdbd2cSJim Jagielski osl::Security sec;
61*b1cdbd2cSJim Jagielski rtl::OUString homedir_url;
62*b1cdbd2cSJim Jagielski
63*b1cdbd2cSJim Jagielski if (sec.getHomeDir(homedir_url))
64*b1cdbd2cSJim Jagielski {
65*b1cdbd2cSJim Jagielski rtl::OUString homedir;
66*b1cdbd2cSJim Jagielski osl::FileBase::getSystemPathFromFileURL(homedir_url, homedir);
67*b1cdbd2cSJim Jagielski
68*b1cdbd2cSJim Jagielski rtl::OUString rufn = homedir;
69*b1cdbd2cSJim Jagielski ensure_final_slash(rufn);
70*b1cdbd2cSJim Jagielski rufn += RECENTLY_USED_FILE_NAME;
71*b1cdbd2cSJim Jagielski
72*b1cdbd2cSJim Jagielski rtl::OString tmp =
73*b1cdbd2cSJim Jagielski rtl::OUStringToOString(rufn, osl_getThreadTextEncoding());
74*b1cdbd2cSJim Jagielski
75*b1cdbd2cSJim Jagielski file_ = fopen(tmp.getStr(), "r+");
76*b1cdbd2cSJim Jagielski
77*b1cdbd2cSJim Jagielski /* create if not exist */
78*b1cdbd2cSJim Jagielski if (NULL == file_) {
79*b1cdbd2cSJim Jagielski mode_t umask_ = umask(S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
80*b1cdbd2cSJim Jagielski file_ = fopen(tmp.getStr(), "w+");
81*b1cdbd2cSJim Jagielski umask(umask_);
82*b1cdbd2cSJim Jagielski }
83*b1cdbd2cSJim Jagielski
84*b1cdbd2cSJim Jagielski if (NULL == file_)
85*b1cdbd2cSJim Jagielski throw "I/O error opening ~/.recently-used";
86*b1cdbd2cSJim Jagielski
87*b1cdbd2cSJim Jagielski if (lockf(fileno(file_), F_LOCK, 0) != 0)
88*b1cdbd2cSJim Jagielski {
89*b1cdbd2cSJim Jagielski fclose(file_);
90*b1cdbd2cSJim Jagielski throw "Cannot lock ~/.recently-used";
91*b1cdbd2cSJim Jagielski }
92*b1cdbd2cSJim Jagielski }
93*b1cdbd2cSJim Jagielski else
94*b1cdbd2cSJim Jagielski throw "Cannot determine user home directory";
95*b1cdbd2cSJim Jagielski }
96*b1cdbd2cSJim Jagielski
97*b1cdbd2cSJim Jagielski //------------------------------------------------
~recently_used_file()98*b1cdbd2cSJim Jagielski recently_used_file::~recently_used_file()
99*b1cdbd2cSJim Jagielski {
100*b1cdbd2cSJim Jagielski lockf(fileno(file_), F_ULOCK, 0);
101*b1cdbd2cSJim Jagielski fclose(file_);
102*b1cdbd2cSJim Jagielski }
103*b1cdbd2cSJim Jagielski
104*b1cdbd2cSJim Jagielski //------------------------------------------------
reset() const105*b1cdbd2cSJim Jagielski void recently_used_file::reset() const
106*b1cdbd2cSJim Jagielski {
107*b1cdbd2cSJim Jagielski rewind(file_);
108*b1cdbd2cSJim Jagielski }
109*b1cdbd2cSJim Jagielski
110*b1cdbd2cSJim Jagielski //------------------------------------------------
truncate(off_t length)111*b1cdbd2cSJim Jagielski void recently_used_file::truncate(off_t length)
112*b1cdbd2cSJim Jagielski {
113*b1cdbd2cSJim Jagielski if (ftruncate(fileno(file_), length) == -1)
114*b1cdbd2cSJim Jagielski throw "I/O error: ftruncate failed";
115*b1cdbd2cSJim Jagielski }
116*b1cdbd2cSJim Jagielski
117*b1cdbd2cSJim Jagielski //------------------------------------------------
read(char * buffer,size_t size) const118*b1cdbd2cSJim Jagielski size_t recently_used_file::read(char* buffer, size_t size) const
119*b1cdbd2cSJim Jagielski {
120*b1cdbd2cSJim Jagielski size_t r = fread(reinterpret_cast<void*>(buffer), sizeof(char), size, file_);
121*b1cdbd2cSJim Jagielski
122*b1cdbd2cSJim Jagielski if ((r < size) && ferror(file_))
123*b1cdbd2cSJim Jagielski throw "I/O error: read failed";
124*b1cdbd2cSJim Jagielski
125*b1cdbd2cSJim Jagielski return r;
126*b1cdbd2cSJim Jagielski }
127*b1cdbd2cSJim Jagielski
128*b1cdbd2cSJim Jagielski //----------------------------
write(const char * buffer,size_t size) const129*b1cdbd2cSJim Jagielski void recently_used_file::write(const char* buffer, size_t size) const
130*b1cdbd2cSJim Jagielski {
131*b1cdbd2cSJim Jagielski if (size != fwrite(reinterpret_cast<const void*>(buffer), sizeof(char), size, file_))
132*b1cdbd2cSJim Jagielski throw "I/O error: write failed";
133*b1cdbd2cSJim Jagielski }
134*b1cdbd2cSJim Jagielski
135*b1cdbd2cSJim Jagielski //----------------------------
eof() const136*b1cdbd2cSJim Jagielski bool recently_used_file::eof() const
137*b1cdbd2cSJim Jagielski {
138*b1cdbd2cSJim Jagielski return feof(file_);
139*b1cdbd2cSJim Jagielski }
140*b1cdbd2cSJim Jagielski
141*b1cdbd2cSJim Jagielski
142*b1cdbd2cSJim Jagielski
143*b1cdbd2cSJim Jagielski
144