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#include <sys/time.h>
#include <time.h>
#include <string.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include "tango_cache_tools.h"
static const char data_bin2ascii[65] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
#define conv_bin2ascii(a) (data_bin2ascii[(a)&0x3f])
#define B64_EOLN 0xF0
#define B64_CR 0xF1
#define B64_EOF 0xF2
#define B64_WS 0xE0
#define B64_ERROR 0xFF
#define B64_NOT_BASE64(a) (((a)|0x13) == 0xF3)
#define B64_BASE64(a) !B64_NOT_BASE64(a)
static const unsigned char data_ascii2bin[128] = {
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xE0, 0xF0, 0xFF, 0xFF, 0xF1, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xE0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0x3E, 0xFF, 0xF2, 0xFF, 0x3F,
0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B,
0x3C, 0x3D, 0xFF, 0xFF, 0xFF, 0x00, 0xFF, 0xFF,
0xFF, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E,
0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16,
0x17, 0x18, 0x19, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20,
0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30,
0x31, 0x32, 0x33, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
};
//�мDz�������˵���: conv_ascii2bin(x++); ��Ϊ��++����
#define conv_ascii2bin(aa) (((aa) & 0x80)?(0xFF):data_ascii2bin[(aa)])
/*********************************************************************
�������ƣ�Base64_EncodeBlock
���ܼ�飺��һ����BASE64�������б���
���������in����������ַ���
inl��in�ij���
���������out�������洢�Ļ�������
����ֵ�������ij���
*********************************************************************/
int Base64_EncodeBlock(const unsigned char *in, int inl, unsigned char *out)
{
int i, ret = 0;
unsigned long l;
for (i = inl; i > 0; i -= 3) {
if (i >= 3) {
l = (((unsigned long)in[0]) << 16L) |
(((unsigned long)in[1]) << 8L) | in[2];
*(out++) = conv_bin2ascii(l >> 18L);
*(out++) = conv_bin2ascii(l >> 12L);
*(out++) = conv_bin2ascii(l >> 6L);
*(out++) = conv_bin2ascii(l);
} else {
l = ((unsigned long)in[0]) << 16L;
if (i == 2)
l |= ((unsigned long)in[1] << 8L);
*(out++) = conv_bin2ascii(l >> 18L);
*(out++) = conv_bin2ascii(l >> 12L);
*(out++) = (i == 1) ? '=' : conv_bin2ascii(l >> 6L);
*(out++) = '=';
}
ret += 4;
in += 3;
}
*out = '\0';
return (ret);
}
/*********************************************************************
�������ƣ�Base64_DecodeBlock
���ܼ�飺��һ����BASE64�������н������Զ�������β��BASE64�����ַ�
���������in����������ַ���
inl��in�ij���
���������out�������洢�Ļ�������
���뱣֤���㹻�Ŀռ䣬һ��ﵽ@inl��С���ɣ�
����ֵ��<0��ʧ�ܣ�>=0�������ij���
*********************************************************************/
int Base64_DecodeBlock(const unsigned char *in, int inl, unsigned char *out, int outsize)
{
int i, ret = 0;
unsigned char a, b, c, d;
unsigned long l;
/* ignore not-base64-encoded charactor. */
while ((conv_ascii2bin(*in) == B64_WS) && (inl > 0))
{
in++;
inl--;
}
while ((inl > 3) && (B64_NOT_BASE64(conv_ascii2bin(in[inl - 1]))))
inl--;
if (inl % 4 != 0)
return -1;
if(outsize < (inl*3)/4)
return -2;
for (i = 0; i < inl; i += 4)
{
a = conv_ascii2bin(*(in));
b = conv_ascii2bin(*(in+1));
c = conv_ascii2bin(*(in+2));
d = conv_ascii2bin(*(in+3));
if ((a & 0x80) || (b & 0x80) || (c & 0x80) || (d & 0x80))
return (-1);
l = ((((unsigned long)a) << 18L) | (((unsigned long)b) << 12L) |
(((unsigned long)c) << 6L) | (((unsigned long)d)));
*(out++) = (unsigned char)(l >> 16L) & 0xff;
*(out++) = (unsigned char)(l >> 8L) & 0xff;
*(out++) = (unsigned char)(l) & 0xff;
ret += 3;
in+=4;
}
for(i = inl; i > 0; i -= 4)
{
if(*(in-3) == '=')
{
in -= 4;
ret -= 3;
continue;
}
while(*(--in) == '=')
ret -= 1;
break;
}
return ret;
}
//��֪������������ͬ������£��Ƚ��������Ƿ����
int strcmp_one_word_mesa_equal_len(const char *s1_lowercase, const char *s1_uppercase, const char *s2, size_t len)
{
unsigned char *s1,*s12;
if (s2[len-1]-'a'>=0)
{
s1 = (unsigned char *)s1_lowercase;
s12= (unsigned char *)s1_uppercase;
}
else
{
s1 = (unsigned char *)s1_uppercase;
s12= (unsigned char *)s1_lowercase;
}
do {
if (*s1 == *s2 || *s12 == *s2)
{
++s1;
++s12;
++s2;
continue;
}
return 0;
} while (--len);
return 1;
}
int mkdir_according_path(const char * path)
{
char buffer[256];
const char *ps=path, *pc;
if(*ps == '/')
ps += 1;
while((pc = strchr(ps, '/')) != NULL)
{
while(*(pc+1) == '/')
pc++;
memcpy(buffer, path, pc - path);
buffer[pc-path] = '\0';
if(access(buffer, F_OK))
{
if(mkdir(buffer, 0777) && errno!=EEXIST)
{
return -1;
}
}
ps = pc + 1;
}
if(access(path, F_OK))
{
if(mkdir(path, 0777))
{
return -1;
}
}
return 0;
}
//��ʱ���ַ���ת��Ϊʱ���
time_t expires_hdr2timestamp(const char *expires_val, int len)
{
struct tm tm;
while(len > 0 && (*expires_val==' '||*expires_val=='\t'||*expires_val=='\r'||*expires_val=='\n'))
{
expires_val++;
len--;
}
if(len == 0)
{
return 0;
}
memset(&tm, 0, sizeof(struct tm));
if(strptime(expires_val, "%a, %d %b %Y %T", &tm) == NULL)
{
return 0;
}
return mktime(&tm);
}
//������ʱ���ת��ΪGMTʱ���ַ���
size_t expires_timestamp2hdr_str(time_t seconds, char *buffer, size_t size)
{
struct tm save;
return strftime(buffer, size, "Expires: %a, %d %b %Y %T GMT", gmtime_r(&seconds, &save));
}
//������ʱ���ת��ΪGMTʱ���
time_t get_gmtime_timestamp(time_t seconds)
{
struct tm *tm, save;
tm = gmtime_r(&seconds, &save);
return mktime(tm);
}
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