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/**
* libtransport -- C++ library for easy XMPP Transports development
*
* Copyright (C) 2011, Jan Kaluza <hanzz.k@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#include "transport/Util.h"
#include "transport/Config.h"
#include <boost/foreach.hpp>
#include <iostream>
#include <iterator>
#include <algorithm>
#include <boost/filesystem.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/numeric/conversion/cast.hpp>
#ifndef WIN32
#include "sys/signal.h"
#include <sys/stat.h>
#include <pwd.h>
#include <grp.h>
#include <sys/resource.h>
#include "libgen.h"
#else
#include <windows.h>
#include <process.h>
#define getpid _getpid
#endif
using namespace boost::filesystem;
namespace Transport {
namespace Util {
void createDirectories(Transport::Config *config, const boost::filesystem::path& ph) {
if (ph.empty() || exists(ph)) {
return;
}
// First create branch, by calling ourself recursively
createDirectories(config, ph.branch_path());
// Now that parent's path exists, create the directory
create_directory(ph);
#ifndef WIN32
if (!CONFIG_STRING(config, "service.group").empty() && !CONFIG_STRING(config, "service.user").empty()) {
struct group *gr;
if ((gr = getgrnam(CONFIG_STRING(config, "service.group").c_str())) == NULL) {
std::cerr << "Invalid service.group name " << CONFIG_STRING(config, "service.group") << "\n";
}
struct passwd *pw;
if ((pw = getpwnam(CONFIG_STRING(config, "service.user").c_str())) == NULL) {
std::cerr << "Invalid service.user name " << CONFIG_STRING(config, "service.user") << "\n";
}
chown(ph.string().c_str(), pw->pw_uid, gr->gr_gid);
}
#endif
}
void removeEverythingOlderThan(const std::vector<std::string> &dirs, time_t t) {
BOOST_FOREACH(const std::string &dir, dirs) {
path p(dir);
try {
if (!exists(p)) {
continue;
}
if (!is_directory(p)) {
continue;
}
directory_iterator end_itr;
for (directory_iterator itr(p); itr != end_itr; ++itr) {
if (last_write_time(itr->path()) < t) {
try {
if (is_regular(itr->path())) {
remove(itr->path());
}
else if (is_directory(itr->path())) {
std::vector<std::string> nextDirs;
nextDirs.push_back(itr->path().string());
removeEverythingOlderThan(nextDirs, t);
if (boost::filesystem::is_empty(itr->path())) {
remove_all(itr->path());
}
}
}
catch (const filesystem_error& ex) {
}
}
}
}
catch (const filesystem_error& ex) {
}
}
}
int getRandomPort(const std::string &s) {
unsigned long r = 0;
BOOST_FOREACH(char c, s) {
r += (int) c;
}
srand(time(NULL) + r);
return 30000 + rand() % 10000;
}
std::string char2hex( char dec )
{
char dig1 = (dec&0xF0)>>4;
char dig2 = (dec&0x0F);
if ( 0<= dig1 && dig1<= 9) dig1+=48; //0,48 in ascii
if (10<= dig1 && dig1<=15) dig1+=65-10; //A,65 in ascii
if ( 0<= dig2 && dig2<= 9) dig2+=48;
if (10<= dig2 && dig2<=15) dig2+=65-10;
std::string r;
r.append( &dig1, 1);
r.append( &dig2, 1);
return r;
}
std::string urlencode( const std::string &c )
{
std::string escaped;
int max = c.length();
for (int i=0; i<max; i++)
{
if ( (48 <= c[i] && c[i] <= 57) ||//0-9
(65 <= c[i] && c[i] <= 90) ||//ABC...XYZ
(97 <= c[i] && c[i] <= 122) || //abc...xyz
(c[i]=='~' || c[i]=='-' || c[i]=='_' || c[i]=='.')
)
{
escaped.append( &c[i], 1);
}
else
{
escaped.append("%");
escaped.append( char2hex(c[i]) );//converts char 255 to string "FF"
}
}
return escaped;
}
#ifdef _WIN32
std::wstring utf8ToUtf16(const std::string& str)
{
int numRequiredBytes = MultiByteToWideChar(CP_UTF8, 0, str.c_str(), -1, NULL, 0);
std::wstring result;
result.resize(numRequiredBytes);
MultiByteToWideChar(CP_UTF8, 0, str.c_str(), str.size(), result.data(), numRequiredBytes);
return result;
}
#endif // _WIN32
}
}
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