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/* <!-- copyright */
/*
* aria2 - a simple utility for downloading files faster
*
* Copyright (C) 2006 Tatsuhiro Tsujikawa
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* copyright --> */
#ifndef _D_UTIL_H_
#define _D_UTIL_H_
#include "common.h"
#ifdef ENABLE_MESSAGE_DIGEST
#include "messageDigest.h"
#endif // ENABLE_MESSAGE_DIGEST
#include <string>
#include <utility>
#include <deque>
#include <sys/time.h>
#include <stdio.h>
using namespace std;
#define STRTOLL(X) strtoll(X, (char**)NULL, 10);
class Util {
public:
static void split(pair<string, string>& hp, const string& src, char delim);
static string llitos(long long int value, bool comma = false);
static string itos(int value, bool comma = false);
/**
* Computes difference in micro-seconds between tv1 and tv2,
* assuming tv1 is newer than tv2.
* If tv1 is older than tv2, then this method returns 0.
*/
static long long int difftv(struct timeval tv1, struct timeval tv2);
static int difftvsec(struct timeval tv1, struct timeval tv2);
/**
* Take a string src which is a deliminated list and add its elements
* into result. result is not cleared before conversion begins.
*/
static void slice(Strings& result, const string& src, char delim);
static string trim(const string& src);
static bool startsWith(const string& target, const string& part);
static bool endsWith(const string& target, const string& part);
static string replace(const string& target, const string& oldstr, const string& newstr);
static string urlencode(const unsigned char* target, int len);
static string toHex(const unsigned char* src, int len);
static FILE* openFile(const string& filename, const string& mode);
static void fileCopy(const string& destFile, const string& src);
static void rangedFileCopy(const string& destFile, const string& src, long long int srcOffset, long long int length);
static bool isPowerOf(int num, int base);
static string secfmt(int sec);
static int expandBuffer(char** pbuf, int curLength, int newLength);
static void unfoldRange(const string& src, Integers& range);
// this function temporarily put here
static string getContentDispositionFilename(const string& header);
// digest must be at least 20 bytes long.
#ifdef ENABLE_MESSAGE_DIGEST
static void sha1Sum(unsigned char* digest, const void* data, int dataLength);
#endif // ENABLE_MESSAGE_DIGEST
// Before call this method, allocate enough memory to the parameter "digest".
// For sha1, you need 20 bytes. For md5, 16 bytes.
#ifdef ENABLE_MESSAGE_DIGEST
static void fileChecksum(const string& filename, unsigned char* digest,
MessageDigestContext::HashAlgo algo);
#endif // ENABLE_MESSAGE_DIGEST
#ifdef ENABLE_BITTORRENT
static Integers computeFastSet(string ipaddr, const unsigned char* infoHash,
int pieces, int fastSetSize);
#endif // ENABLE_BITTORRENT
static int countBit(unsigned int);
static string randomAlpha(int length);
static string toUpper(const string& src);
static string toLower(const string& src);
};
#endif // _D_UTIL_H_
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