866 lines
18 KiB
C++
866 lines
18 KiB
C++
/* Copyright (C) 2004 J.F.Dockes
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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 General Public License as published by
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* the Free Software Foundation; either version 2 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef TEST_PATHUT
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#include "autoconfig.h"
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/param.h>
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#include <pwd.h>
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#include <math.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <glob.h>
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// Let's include all files where statfs can be defined and hope for no
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// conflict...
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#ifdef HAVE_SYS_MOUNT_H
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#include <sys/mount.h>
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#endif
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#ifdef HAVE_SYS_STATFS_H
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#include <sys/statfs.h>
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#endif
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#ifdef HAVE_SYS_STATVFS_H
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#include <sys/statvfs.h>
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#endif
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#ifdef HAVE_SYS_VFS_H
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#include <sys/vfs.h>
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#endif
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#include <cstdlib>
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#include <cstring>
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#include <iostream>
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#include <stack>
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#ifndef NO_NAMESPACES
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using std::string;
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using std::stack;
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#endif /* NO_NAMESPACES */
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#include "pathut.h"
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#include "transcode.h"
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#include "wipedir.h"
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#include "md5.h"
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bool fsocc(const string &path, int *pc, long *blocks)
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{
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#ifdef sun
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struct statvfs buf;
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if (statvfs(path.c_str(), &buf) != 0) {
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return false;
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}
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#else
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struct statfs buf;
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if (statfs(path.c_str(), &buf) != 0) {
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return false;
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}
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#endif
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// used blocks
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double fpc = 0.0;
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#define FSOCC_USED (double(buf.f_blocks - buf.f_bfree))
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#define FSOCC_TOTAVAIL (FSOCC_USED + double(buf.f_bavail))
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if (FSOCC_TOTAVAIL > 0) {
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fpc = 100.0 * FSOCC_USED / FSOCC_TOTAVAIL;
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}
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*pc = int(fpc);
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if (blocks) {
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*blocks = 0;
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#define FSOCC_MB (1024*1024)
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if (buf.f_bsize > 0) {
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int ratio = buf.f_bsize > FSOCC_MB ? buf.f_bsize / FSOCC_MB :
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FSOCC_MB / buf.f_bsize;
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*blocks = buf.f_bsize > FSOCC_MB ? long(buf.f_bavail) * ratio :
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long(buf.f_bavail) / ratio;
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}
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}
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return true;
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}
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const string& tmplocation()
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{
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static string stmpdir;
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if (stmpdir.empty()) {
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const char *tmpdir = getenv("RECOLL_TMPDIR");
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if (tmpdir == 0)
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tmpdir = getenv("TMPDIR");
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if (tmpdir == 0)
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tmpdir = "/tmp";
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stmpdir = string(tmpdir);
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}
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return stmpdir;
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}
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bool maketmpdir(string& tdir, string& reason)
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{
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tdir = path_cat(tmplocation(), "rcltmpXXXXXX");
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char *cp = strdup(tdir.c_str());
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if (!cp) {
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reason = "maketmpdir: out of memory (for file name !)\n";
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tdir.erase();
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return false;
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}
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if (!
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#ifdef HAVE_MKDTEMP
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mkdtemp(cp)
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#else
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mktemp(cp)
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#endif // HAVE_MKDTEMP
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) {
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free(cp);
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reason = "maketmpdir: mktemp failed for [" + tdir + "] : " +
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strerror(errno);
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tdir.erase();
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return false;
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}
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tdir = cp;
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free(cp);
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#ifndef HAVE_MKDTEMP
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if (mkdir(tdir.c_str(), 0700) < 0) {
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reason = string("maketmpdir: mkdir ") + tdir + " failed";
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tdir.erase();
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return false;
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}
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#endif
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return true;
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}
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TempFileInternal::TempFileInternal(const string& suffix)
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: m_noremove(false)
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{
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string filename = path_cat(tmplocation(), "rcltmpfXXXXXX");
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char *cp = strdup(filename.c_str());
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if (!cp) {
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m_reason = "Out of memory (for file name !)\n";
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return;
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}
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// Yes using mkstemp this way is awful (bot the suffix adding and
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// using mkstemp() just to avoid the warnings)
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int fd;
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if ((fd = mkstemp(cp)) < 0) {
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free(cp);
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m_reason = "TempFileInternal: mkstemp failed\n";
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return;
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}
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close(fd);
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unlink(cp);
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filename = cp;
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free(cp);
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m_filename = filename + suffix;
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if (close(open(m_filename.c_str(), O_CREAT|O_EXCL, 0600)) != 0) {
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m_reason = string("Could not open/create") + m_filename;
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m_filename.erase();
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}
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}
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TempFileInternal::~TempFileInternal()
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{
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if (!m_filename.empty() && !m_noremove)
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unlink(m_filename.c_str());
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}
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TempDir::TempDir()
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{
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if (!maketmpdir(m_dirname, m_reason)) {
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m_dirname.erase();
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return;
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}
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}
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TempDir::~TempDir()
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{
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if (!m_dirname.empty()) {
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(void)wipedir(m_dirname, true, true);
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m_dirname.erase();
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}
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}
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bool TempDir::wipe()
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{
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if (m_dirname.empty()) {
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m_reason = "TempDir::wipe: no directory !\n";
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return false;
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}
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if (wipedir(m_dirname, false, true)) {
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m_reason = "TempDir::wipe: wipedir failed\n";
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return false;
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}
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return true;
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}
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void path_catslash(string &s) {
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if (s.empty() || s[s.length() - 1] != '/')
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s += '/';
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}
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string path_cat(const string &s1, const string &s2) {
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string res = s1;
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path_catslash(res);
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res += s2;
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return res;
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}
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string path_getfather(const string &s) {
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string father = s;
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// ??
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if (father.empty())
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return "./";
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if (father[father.length() - 1] == '/') {
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// Input ends with /. Strip it, handle special case for root
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if (father.length() == 1)
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return father;
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father.erase(father.length()-1);
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}
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string::size_type slp = father.rfind('/');
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if (slp == string::npos)
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return "./";
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father.erase(slp);
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path_catslash(father);
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return father;
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}
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string path_getsimple(const string &s) {
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string simple = s;
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if (simple.empty())
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return simple;
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string::size_type slp = simple.rfind('/');
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if (slp == string::npos)
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return simple;
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simple.erase(0, slp+1);
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return simple;
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}
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string path_basename(const string &s, const string &suff)
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{
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string simple = path_getsimple(s);
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string::size_type pos = string::npos;
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if (suff.length() && simple.length() > suff.length()) {
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pos = simple.rfind(suff);
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if (pos != string::npos && pos + suff.length() == simple.length())
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return simple.substr(0, pos);
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}
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return simple;
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}
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string path_home()
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{
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uid_t uid = getuid();
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struct passwd *entry = getpwuid(uid);
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if (entry == 0) {
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const char *cp = getenv("HOME");
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if (cp)
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return cp;
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else
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return "/";
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}
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string homedir = entry->pw_dir;
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path_catslash(homedir);
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return homedir;
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}
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extern string path_tildexpand(const string &s)
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{
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if (s.empty() || s[0] != '~')
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return s;
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string o = s;
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if (s.length() == 1) {
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o.replace(0, 1, path_home());
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} else if (s[1] == '/') {
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o.replace(0, 2, path_home());
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} else {
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string::size_type pos = s.find('/');
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int l = (pos == string::npos) ? s.length() - 1 : pos - 1;
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struct passwd *entry = getpwnam(s.substr(1, l).c_str());
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if (entry)
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o.replace(0, l+1, entry->pw_dir);
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}
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return o;
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}
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extern string path_absolute(const string &is)
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{
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if (is.length() == 0)
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return is;
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string s = is;
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if (s[0] != '/') {
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char buf[MAXPATHLEN];
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if (!getcwd(buf, MAXPATHLEN)) {
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return string();
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}
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s = path_cat(string(buf), s);
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}
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return s;
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}
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#include <smallut.h>
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extern string path_canon(const string &is)
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{
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if (is.length() == 0)
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return is;
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string s = is;
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if (s[0] != '/') {
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char buf[MAXPATHLEN];
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if (!getcwd(buf, MAXPATHLEN)) {
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return string();
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}
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s = path_cat(string(buf), s);
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}
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vector<string> elems;
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stringToTokens(s, elems, "/");
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vector<string> cleaned;
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for (vector<string>::const_iterator it = elems.begin();
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it != elems.end(); it++){
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if (*it == "..") {
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if (!cleaned.empty())
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cleaned.pop_back();
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} else if (it->empty() || *it == ".") {
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} else {
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cleaned.push_back(*it);
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}
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}
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string ret;
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if (!cleaned.empty()) {
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for (vector<string>::const_iterator it = cleaned.begin();
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it != cleaned.end(); it++) {
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ret += "/";
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ret += *it;
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}
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} else {
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ret = "/";
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}
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return ret;
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}
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bool makepath(const string& ipath)
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{
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string path = path_canon(ipath);
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vector<string> elems;
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stringToTokens(path, elems, "/");
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path = "/";
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for (vector<string>::const_iterator it = elems.begin();
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it != elems.end(); it++){
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path += *it;
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// Not using path_isdir() here, because this cant grok symlinks
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// If we hit an existing file, no worry, mkdir will just fail.
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if (access(path.c_str(), 0) != 0) {
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if (mkdir(path.c_str(), 0700) != 0) {
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return false;
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}
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}
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path += "/";
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}
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return true;
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}
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vector<string> path_dirglob(const string &dir, const string pattern)
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{
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vector<string> res;
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glob_t mglob;
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string mypat=path_cat(dir, pattern);
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if (glob(mypat.c_str(), 0, 0, &mglob)) {
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return res;
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}
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for (int i = 0; i < int(mglob.gl_pathc); i++) {
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res.push_back(mglob.gl_pathv[i]);
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}
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globfree(&mglob);
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return res;
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}
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bool path_isdir(const string& path)
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{
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struct stat st;
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if (lstat(path.c_str(), &st) < 0)
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return false;
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if (S_ISDIR(st.st_mode))
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return true;
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return false;
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}
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// Allowed punctuation in the path part of an URI according to RFC2396
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// -_.!~*'():@&=+$,
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/*
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21 !
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22 "
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23 #
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24 $
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25 %
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26 &
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27 '
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28 (
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29 )
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2A *
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2B +
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2C ,
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2D -
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2E .
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2F /
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30 0
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...
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39 9
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3A :
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3B ;
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3C <
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3D =
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3E >
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3F ?
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40 @
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41 A
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...
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5A Z
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5B [
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5C \
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5D ]
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5E ^
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5F _
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60 `
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61 a
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...
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7A z
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7B {
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7C |
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7D }
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7E ~
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7F DEL
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*/
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string url_encode(const string& url, string::size_type offs)
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{
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string out = url.substr(0, offs);
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const char *cp = url.c_str();
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for (string::size_type i = offs; i < url.size(); i++) {
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unsigned int c;
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const char *h = "0123456789ABCDEF";
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c = cp[i];
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if (c <= 0x20 ||
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c >= 0x7f ||
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c == '"' ||
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c == '#' ||
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c == '%' ||
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c == ';' ||
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c == '<' ||
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c == '>' ||
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c == '?' ||
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c == '[' ||
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c == '\\' ||
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c == ']' ||
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c == '^' ||
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c == '`' ||
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c == '{' ||
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c == '|' ||
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c == '}' ) {
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out += '%';
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out += h[(c >> 4) & 0xf];
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out += h[c & 0xf];
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} else {
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out += char(c);
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}
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}
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return out;
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}
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string url_gpath(const string& url)
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{
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// Remove the access schema part (or whatever it's called)
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string::size_type colon = url.find_first_of(":");
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if (colon == string::npos || colon == url.size() - 1)
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return url;
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// If there are non-alphanum chars before the ':', then there
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// probably is no scheme. Whatever...
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for (string::size_type i = 0; i < colon; i++) {
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if (!isalnum(url.at(i)))
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return url;
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}
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// In addition we canonize the path to remove empty host parts
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// (for compatibility with older versions of recoll where file://
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// was hardcoded, but the local path was used for doc
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// identification.
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return path_canon(url.substr(colon+1));
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}
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// Convert to file path if url is like file:
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// Note: this only works with our internal pseudo-urls which are not
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// encoded/escaped
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string fileurltolocalpath(string url)
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{
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if (url.find("file://") == 0)
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url = url.substr(7, string::npos);
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else
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return string();
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string::size_type pos;
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if ((pos = url.find_last_of("#")) != string::npos) {
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url.erase(pos);
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}
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return url;
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}
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bool urlisfileurl(const string& url)
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{
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return url.find("file://") == 0;
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}
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// Printable url: this is used to transcode from the system charset
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// into either utf-8 if transcoding succeeds, or url-encoded
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bool printableUrl(const string &fcharset, const string &in, string &out)
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{
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int ecnt = 0;
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if (!transcode(in, out, fcharset, "UTF-8", &ecnt) || ecnt) {
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out = url_encode(in, 7);
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}
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return true;
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}
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// We do not want to mess with the pidfile content in the destructor:
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// the lock might still be in use in a child process. In fact as much
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// as we'd like to reset the pid inside the file when we're done, it
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// would be very difficult to do it right and it's probably best left
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// alone.
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Pidfile::~Pidfile()
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{
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if (m_fd >= 0)
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::close(m_fd);
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m_fd = -1;
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}
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pid_t Pidfile::read_pid()
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{
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int fd = ::open(m_path.c_str(), O_RDONLY);
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if (fd == -1)
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return (pid_t)-1;
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char buf[16];
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int error;
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int i = read(fd, buf, sizeof(buf) - 1);
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error = errno;
|
|
::close(fd);
|
|
if (i <= 0)
|
|
return (pid_t)-1;
|
|
buf[i] = '\0';
|
|
char *endptr;
|
|
pid_t pid = strtol(buf, &endptr, 10);
|
|
if (endptr != &buf[i])
|
|
return (pid_t)-1;
|
|
return pid;
|
|
}
|
|
|
|
int Pidfile::flopen()
|
|
{
|
|
const char *path = m_path.c_str();
|
|
if ((m_fd = ::open(path, O_RDWR|O_CREAT, 0644)) == -1) {
|
|
m_reason = "Open failed: [" + m_path + "]: " + strerror(errno);
|
|
return -1;
|
|
}
|
|
|
|
#ifdef sun
|
|
struct flock lockdata;
|
|
lockdata.l_start = 0;
|
|
lockdata.l_len = 0;
|
|
lockdata.l_type = F_WRLCK;
|
|
lockdata.l_whence = SEEK_SET;
|
|
if (fcntl(m_fd, F_SETLK, &lockdata) != 0) {
|
|
int serrno = errno;
|
|
(void)::close(m_fd);
|
|
errno = serrno;
|
|
m_reason = "fcntl lock failed";
|
|
return -1;
|
|
}
|
|
#else
|
|
int operation = LOCK_EX | LOCK_NB;
|
|
if (flock(m_fd, operation) == -1) {
|
|
int serrno = errno;
|
|
(void)::close(m_fd);
|
|
errno = serrno;
|
|
m_reason = "flock failed";
|
|
return -1;
|
|
}
|
|
#endif // ! sun
|
|
|
|
if (ftruncate(m_fd, 0) != 0) {
|
|
/* can't happen [tm] */
|
|
int serrno = errno;
|
|
(void)::close(m_fd);
|
|
errno = serrno;
|
|
m_reason = "ftruncate failed";
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
pid_t Pidfile::open()
|
|
{
|
|
if (flopen() < 0) {
|
|
return read_pid();
|
|
}
|
|
return (pid_t)0;
|
|
}
|
|
|
|
int Pidfile::write_pid()
|
|
{
|
|
/* truncate to allow multiple calls */
|
|
if (ftruncate(m_fd, 0) == -1) {
|
|
m_reason = "ftruncate failed";
|
|
return -1;
|
|
}
|
|
char pidstr[20];
|
|
sprintf(pidstr, "%u", int(getpid()));
|
|
lseek(m_fd, 0, 0);
|
|
if (::write(m_fd, pidstr, strlen(pidstr)) != (ssize_t)strlen(pidstr)) {
|
|
m_reason = "write failed";
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int Pidfile::close()
|
|
{
|
|
return ::close(m_fd);
|
|
}
|
|
|
|
int Pidfile::remove()
|
|
{
|
|
return unlink(m_path.c_str());
|
|
}
|
|
|
|
|
|
// Freedesktop standard paths for cache directory (thumbnails are now in there)
|
|
static const string& xdgcachedir()
|
|
{
|
|
static string xdgcache;
|
|
if (xdgcache.empty()) {
|
|
const char *cp = getenv("XDG_CACHE_HOME");
|
|
if (cp == 0)
|
|
xdgcache = path_cat(path_home(), ".cache");
|
|
else
|
|
xdgcache = string(cp);
|
|
}
|
|
return xdgcache;
|
|
}
|
|
static const string& thumbnailsdir()
|
|
{
|
|
static string thumbnailsd;
|
|
if (thumbnailsd.empty()) {
|
|
thumbnailsd = path_cat(xdgcachedir(), "thumbnails");
|
|
if (access(thumbnailsd.c_str(), 0) != 0) {
|
|
thumbnailsd = path_cat(path_home(), ".thumbnails");
|
|
}
|
|
}
|
|
return thumbnailsd;
|
|
}
|
|
|
|
// Place for 256x256 files
|
|
static const string thmbdirlarge = "large";
|
|
// 128x128
|
|
static const string thmbdirnormal = "normal";
|
|
|
|
static void thumbname(const string& url, string& name)
|
|
{
|
|
string digest;
|
|
string l_url = url_encode(url);
|
|
MD5String(l_url, digest);
|
|
MD5HexPrint(digest, name);
|
|
name += ".png";
|
|
}
|
|
|
|
bool thumbPathForUrl(const string& url, int size, string& path)
|
|
{
|
|
string name;
|
|
thumbname(url, name);
|
|
if (size <= 128) {
|
|
path = path_cat(thumbnailsdir(), thmbdirnormal);
|
|
path = path_cat(path, name);
|
|
if (access(path.c_str(), R_OK) == 0) {
|
|
return true;
|
|
}
|
|
}
|
|
path = path_cat(thumbnailsdir(), thmbdirlarge);
|
|
path = path_cat(path, name);
|
|
if (access(path.c_str(), R_OK) == 0) {
|
|
return true;
|
|
}
|
|
|
|
// File does not exist. Path corresponds to the large version at this point,
|
|
// fix it if needed.
|
|
if (size <= 128) {
|
|
path = path_cat(path_home(), thmbdirnormal);
|
|
path = path_cat(path, name);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Call funcs that need static init (not initially reentrant)
|
|
void pathut_init_mt()
|
|
{
|
|
path_home();
|
|
tmplocation();
|
|
thumbnailsdir();
|
|
}
|
|
|
|
|
|
#else // TEST_PATHUT
|
|
#include <stdlib.h>
|
|
#include <iostream>
|
|
using namespace std;
|
|
|
|
#include "pathut.h"
|
|
|
|
const char *tstvec[] = {"", "/", "/dir", "/dir/", "/dir1/dir2",
|
|
"/dir1/dir2",
|
|
"./dir", "./dir1/", "dir", "../dir", "/dir/toto.c",
|
|
"/dir/.c", "/dir/toto.txt", "toto.txt1"
|
|
};
|
|
|
|
const string ttvec[] = {"/dir", "", "~", "~/sub", "~root", "~root/sub",
|
|
"~nosuch", "~nosuch/sub"};
|
|
int nttvec = sizeof(ttvec) / sizeof(string);
|
|
|
|
const char *thisprog;
|
|
|
|
int main(int argc, const char **argv)
|
|
{
|
|
thisprog = *argv++;argc--;
|
|
|
|
string s;
|
|
vector<string>::const_iterator it;
|
|
#if 0
|
|
for (unsigned int i = 0;i < sizeof(tstvec) / sizeof(char *); i++) {
|
|
cout << tstvec[i] << " Father " << path_getfather(tstvec[i]) << endl;
|
|
}
|
|
for (unsigned int i = 0;i < sizeof(tstvec) / sizeof(char *); i++) {
|
|
cout << tstvec[i] << " Simple " << path_getsimple(tstvec[i]) << endl;
|
|
}
|
|
for (unsigned int i = 0;i < sizeof(tstvec) / sizeof(char *); i++) {
|
|
cout << tstvec[i] << " Basename " <<
|
|
path_basename(tstvec[i], ".txt") << endl;
|
|
}
|
|
#endif
|
|
|
|
#if 0
|
|
for (int i = 0; i < nttvec; i++) {
|
|
cout << "tildexp: '" << ttvec[i] << "' -> '" <<
|
|
path_tildexpand(ttvec[i]) << "'" << endl;
|
|
}
|
|
#endif
|
|
|
|
#if 0
|
|
const string canontst[] = {"/dir1/../../..", "/////", "",
|
|
"/dir1/../../.././/////dir2///////",
|
|
"../../",
|
|
"../../../../../../../../../../"
|
|
};
|
|
unsigned int nttvec = sizeof(canontst) / sizeof(string);
|
|
for (unsigned int i = 0; i < nttvec; i++) {
|
|
cout << "canon: '" << canontst[i] << "' -> '" <<
|
|
path_canon(canontst[i]) << "'" << endl;
|
|
}
|
|
#endif
|
|
#if 0
|
|
if (argc != 2) {
|
|
fprintf(stderr, "Usage: trpathut <dir> <pattern>\n");
|
|
exit(1);
|
|
}
|
|
string dir = *argv++;argc--;
|
|
string pattern = *argv++;argc--;
|
|
vector<string> matched = path_dirglob(dir, pattern);
|
|
for (it = matched.begin(); it != matched.end();it++) {
|
|
cout << *it << endl;
|
|
}
|
|
#endif
|
|
|
|
#if 0
|
|
if (argc != 1) {
|
|
fprintf(stderr, "Usage: fsocc: trpathut <path>\n");
|
|
exit(1);
|
|
}
|
|
string path = *argv++;argc--;
|
|
|
|
int pc;
|
|
long blocks;
|
|
if (!fsocc(path, &pc, &blocks)) {
|
|
fprintf(stderr, "fsocc failed\n");
|
|
return 1;
|
|
}
|
|
printf("pc %d, megabytes %ld\n", pc, blocks);
|
|
#endif
|
|
|
|
#if 0
|
|
Pidfile pidfile("/tmp/pathutpidfile");
|
|
pid_t pid;
|
|
if ((pid = pidfile.open()) != 0) {
|
|
cerr << "open failed. reason: " << pidfile.getreason() <<
|
|
" return " << pid << endl;
|
|
exit(1);
|
|
}
|
|
pidfile.write_pid();
|
|
sleep(10);
|
|
pidfile.close();
|
|
pidfile.remove();
|
|
#endif
|
|
|
|
#if 1
|
|
if (argc != 2) {
|
|
fprintf(stderr, "Usage: thumbpath <filepath> <size>\n");
|
|
exit(1);
|
|
}
|
|
|
|
string input = *argv++;
|
|
int size = atoi(*argv++);
|
|
|
|
if (input.empty()) {
|
|
fprintf(stderr, "Usage: thumbpath <filepath> <size>\n");
|
|
exit(1);
|
|
}
|
|
|
|
// Make absolute path if needed
|
|
if (input[0] != '/') {
|
|
input = path_absolute(input);
|
|
}
|
|
input = string("file://") + path_canon(input);
|
|
string path;
|
|
if (thumbPathForUrl(input, size, path)) {
|
|
cout << "Thumbnail for [" << input << "] [" << path << "]" << endl;
|
|
} else {
|
|
cout << "No thumbnail for [" << input << "] path [" << path << "]" <<endl;
|
|
}
|
|
|
|
exit(0);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif // TEST_PATHUT
|
|
|