33#include < md5.h>
44#include < iostream>
55#include < cstring>
6+ #include < fstream>
67
78// ---------------------------------------------------------------------
9+ // WsjcppHashes
810
9- std::string WsjcppHashes::sha1_calc_hex (const std::string &sSource ) {
11+ std::string WsjcppHashes::sha1_calc_hex (const std::string &sSource ) { // deprecated
1012 char hexstring[41 ]; // 40 chars + a zero
1113 std::memset (hexstring, 0 , sizeof hexstring);
1214
@@ -16,11 +18,81 @@ std::string WsjcppHashes::sha1_calc_hex(const std::string &sSource) {
1618 return std::string (hexstring);
1719}
1820
19- // ---------------------------------------------------------------------
20-
21- std::string WsjcppHashes::md5_calc_hex (const std::string &sSource ) {
21+ std::string WsjcppHashes::md5_calc_hex (const std::string &sSource ) { // deprecated
2222 MD5 md5 = MD5 (sSource );
2323 return md5.hexdigest ();
2424}
2525
26- // ---------------------------------------------------------------------
26+ std::string WsjcppHashes::getMd5ByString (const std::string &sStr ) {
27+ MD5 md5 = MD5 (sStr );
28+ return md5.hexdigest ();
29+ }
30+
31+ std::string WsjcppHashes::getMd5ByFile (const std::string &sFilename ) {
32+ std::ifstream f (sFilename , std::ifstream::binary);
33+ if (!f) {
34+ return " Could not open file"
35+ }
36+
37+ // get length of file:
38+ f.seekg (0 , f.end );
39+ int nBufferSize = f.tellg ();
40+ f.seekg (0 , f.beg );
41+
42+ char *pBuffer = new char [nBufferSize];
43+
44+ // read data as a block:
45+ f.read (pBuffer, nBufferSize);
46+ if (!f) {
47+ delete[] pBuffer;
48+ // f.close();
49+ return " Could not read file. Only " std::to_string (f.gcount ()) + " could be read"
50+ }
51+ f.close ();
52+
53+ MD5 md5;
54+ md5.update (pBuffer, nBufferSize);
55+ md5.finalize ();
56+ return md5.hexdigest ();
57+ }
58+
59+ std::string WsjcppHashes::getSha1ByString (const std::string &sStr ) {
60+ char hexstring[41 ]; // 40 chars + a zero
61+ std::memset (hexstring, 0 , sizeof hexstring);
62+
63+ unsigned char hash[20 ];
64+ sha1::calc (sStr .c_str (), sStr .length (), hash);
65+ sha1::toHexString (hash, hexstring);
66+ return std::string (hexstring);
67+ }
68+
69+ std::string WsjcppHashes::getSha1ByFile (const std::string &sFilename ) {
70+ std::ifstream f (sFilename , std::ifstream::binary);
71+ if (!f) {
72+ return " Could not open file"
73+ }
74+
75+ // get length of file:
76+ f.seekg (0 , f.end );
77+ int nBufferSize = f.tellg ();
78+ f.seekg (0 , f.beg );
79+
80+ char *pBuffer = new char [nBufferSize];
81+
82+ // read data as a block:
83+ f.read (pBuffer, nBufferSize);
84+ if (!f) {
85+ delete[] pBuffer;
86+ // f.close();
87+ return " Could not read file. Only " std::to_string (f.gcount ()) + " could be read"
88+ }
89+ f.close ();
90+
91+ char hexstring[41 ]; // 40 chars + a zero
92+ std::memset (hexstring, 0 , sizeof hexstring);
93+ unsigned char hash[20 ];
94+ sha1::calc (pBuffer, nBufferSize, hash);
95+ sha1::toHexString (hash, hexstring);
96+ return std::string (hexstring);
97+ }
98+
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