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Add SHA1 function when no openssl

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This commit is contained in:
antao 2018-09-15 19:40:24 +08:00
parent d20caa2dbb
commit 8444c58e64
2 changed files with 46 additions and 0 deletions
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6
lib/inc/drogon/utils/Utilities.h
View File

@ -14,6 +14,7 @@
#pragma once
#include <drogon/config.h>
#include <trantor/utils/Date.h>
#include <string>
#include <vector>
@ -33,6 +34,11 @@ namespace drogon{
char *data, size_t *ndata);
std::string getHttpFullDate(const trantor::Date &date);
#ifndef USE_OPENSSL
#define SHA_DIGEST_LENGTH 20
void SHA1(const unsigned char *str, size_t length, unsigned char const * sha1);
#endif
}

40
lib/src/Utilities.cc
View File

@ -312,4 +312,44 @@ namespace drogon{
return date.toCustomedFormattedString("%a, %d %b %Y %T GMT");
}
#ifndef USE_OPENSSL
#define SHA1_F(B,C,D,t) ((t<40)?((t<20)?((B&C)|((~B)&D)):(B^C^D)):((t<60)?((B&C)|(B&D)|(C&D)):(B^C^D)))
long SHA1_ROTL(long a,long b)
{
long SHA1_tmp=a;
return ((SHA1_tmp>>(32-b))&(0x7fffffff>>(31-b)))|(SHA1_tmp<<b);
}
void SHA1(const unsigned char *str, size_t length, unsigned char const * sha1)
{
char *pp, *ppend;
long l, i, K[80], W[80], TEMP, A, B, C, D, E, H0, H1, H2, H3, H4;
H0 = 0x67452301, H1 = 0xEFCDAB89, H2 = 0x98BADCFE, H3 = 0x10325476, H4 = 0xC3D2E1F0;
for (i = 0; i < 20; K[i++] = 0x5A827999);
for (i = 20; i < 40; K[i++] = 0x6ED9EBA1);
for (i = 40; i < 60; K[i++] = 0x8F1BBCDC);
for (i = 60; i < 80; K[i++] = 0xCA62C1D6);
l = length + ((length % 64 > 56) ? (128 - length % 64) : (64 - length % 64));
if (!(pp = (char*)malloc((unsigned long)l))) return 0;
for (i = 0; i < length; pp[i + 3 - 2 * (i % 4)] = str[i], i++);
for (pp[i + 3 - 2 * (i % 4)] = 128,i++; i < l; pp[i + 3 - 2 * (i % 4)] = 0,i++);
*((long*)(pp + l - 4)) = length << 3;
*((long*)(pp + l - 8)) = length >> 29;
for (ppend = pp + l; pp < ppend; pp += 64){
for (i = 0; i < 16; W[i] = ((long*)pp)[i], i++);
for (i = 16; i < 80; W[i] = SHA1_ROTL((W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16]), 1), i++);
A = H0, B = H1, C = H2, D = H3, E = H4;
for (i = 0; i < 80; i++){
TEMP = SHA1_ROTL(A, 5) + SHA1_F(B, C, D, i) + E + W[i] + K[i];
E = D, D = C, C = SHA1_ROTL(B, 30), B = A, A = TEMP;
}
H0 += A, H1 += B, H2 += C, H3 += D, H4 += E;
}
free(pp - l);
sprintf(sha1, "%08X%08X%08X%08X%08X", H0, H1, H2, H3, H4);
}
#endif
}