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path: root/plugins/winamp/winamp.vcxproj
AgeCommit message (Expand)Author
2013-09-15Convert project files to vs2013Eustachy Kapusta
2013-07-24Move optimization settings from all subsequent projects to hexchat.propsEustachy Kapusta
2013-04-25win32: Moved PlatformToolset configuration to individual project files. It sh...Arnavion
2012-10-30Remove hexchat-plugin.h duplicateBerke Viktor
2012-10-21Move warning level to property sheetBerke Viktor
2012-10-03Revert to VS2010 part4Berke Viktor
2012-10-02Oops, wrong find'n'replaceBerke Viktor
2012-10-02Remove hardcoding as much as possibleBerke Viktor
2012-10-02Change platform toolset to Visual Studio 2012Berke Viktor
2012-07-21Add _AMD64_ definition for x64 builds, make Visual Studio even happierBerke Viktor
2012-07-21Add trailing backslashes to Output and Intermediate directories, make Visual ...Berke Viktor
2012-07-13Rename DLL files, rename X-SASL to SASLBerke Viktor
2012-07-11Rebranding on the file levelBerke Viktor
2012-06-15Add x64 support to the VS solutionBerke Viktor
2012-06-15LOTS of fixes to the VS solutionBerke Viktor
2012-06-10Add all plugins to solution except WMPABerke Viktor
generated by cgit-pink 1.4.1 (git 2.36.1) at 2025-07-31 17:48:26 +0000
#n164'>164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 
/*

  Copyright (c) 2010 Samuel Lidén Borell <samuel@kodafritt.se>

  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  THE SOFTWARE.

*/

#ifdef __APPLE__
#define __AVAILABILITYMACROS__
#define DEPRECATED_IN_MAC_OS_X_VERSION_10_7_AND_LATER
#endif

#include <stdlib.h>
#include <string.h>
#include <openssl/blowfish.h>

#include "keystore.h"
#include "fish.h"

#define IB 64
static const char fish_base64[64] = "./0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
static const signed char fish_unbase64[256] = {
    IB,IB,IB,IB,IB,IB,IB,IB,  IB,IB,IB,IB,IB,IB,IB,IB,
    IB,IB,IB,IB,IB,IB,IB,IB,  IB,IB,IB,IB,IB,IB,IB,IB,
//      !  "  #  $  %  &  '  (    )  *  +  ,  -  .  /
    IB,IB,IB,IB,IB,IB,IB,IB,  IB,IB,IB,IB,IB,IB, 0, 1,
//   0  1  2  3  4  5  6  7    8  9  :  ;  <  =  >  ?
     2, 3, 4, 5, 6, 7, 8, 9,  10,11,IB,IB,IB,IB,IB,IB,
//   @  A  B  C  D  E  F  G    H  I  J  K  L  M  N  O
    IB,38,39,40,41,42,43,44,  45,46,47,48,49,50,51,52,
//   P  Q  R  S  T  U  V  W    X  Y  Z  [  \  ]  ^  _
    53,54,55,56,57,58,59,60,  61,62,63,IB,IB,IB,IB,IB,
//   `  a  b  c  d  e  f  g    h  i  j  k  l  m  n  o
    IB,12,13,14,15,16,17,18,  19,20,21,22,23,24,25,26,
//   p  q  r  s  t  u  v  w    x  y  z  {  |  }  ~  <del>
    27,28,29,30,31,32,33,34,  35,36,37,IB,IB,IB,IB,IB,
};

#define GET_BYTES(dest, source) do { \
    *((dest)++) = ((source) >> 24) & 0xFF; \
    *((dest)++) = ((source) >> 16) & 0xFF; \
    *((dest)++) = ((source) >> 8) & 0xFF; \
    *((dest)++) = (source) & 0xFF; \
} while (0);


char *fish_encrypt(const char *key, size_t keylen, const char *message) {
    BF_KEY bfkey;
    size_t messagelen;
    size_t i;
    int j;
    char *encrypted;
    char *end;
    unsigned char bit;
    unsigned char word;
    unsigned char d;
    BF_set_key(&bfkey, keylen, (const unsigned char*)key);
    
    messagelen = strlen(message);
    if (messagelen == 0) return NULL;
    encrypted = malloc(((messagelen-1)/8)*12 + 12 + 1); // each 8-byte block becomes 12 bytes
    end = encrypted;
    if (!encrypted) return NULL;
     
    while (*message) {
        // Read 8 bytes (a Blowfish block)
        BF_LONG binary[2] = { 0, 0 };
        unsigned char c;
        for (i = 0; i < 8; i++) {
            c = message[i];
            binary[i >> 2] |= c << 8*(3 - (i&3));
            if (c == '\0') break;
        }
        message += 8;
        
        // Encrypt block
        BF_encrypt(binary, &bfkey);
        
        // Emit FiSH-BASE64
        bit = 0;
        word = 1;
        for (j = 0; j < 12; j++) {
            d = fish_base64[(binary[word] >> bit) & 63];
            *(end++) = d;
            bit += 6;
            if (j == 5) {
                bit = 0;
                word = 0;
            }
        }
        
        // Stop if a null terminator was found
        if (c == '\0') break;
    }
    *end = '\0';
    return encrypted;
}


char *fish_decrypt(const char *key, size_t keylen, const char *data) {
    BF_KEY bfkey;
    size_t i;
    char *decrypted;
    char *end;
    unsigned char bit;
    unsigned char word;
    unsigned char d;
    BF_set_key(&bfkey, keylen, (const unsigned char*)key);
    
    decrypted = malloc(strlen(data)+1);
    end = decrypted;
    if (!decrypted) return NULL;
    
    while (*data) {
        // Convert from FiSH-BASE64
        BF_LONG binary[2] = { 0, 0 };
        bit = 0;
        word = 1;
        for (i = 0; i < 12; i++) {
            d = fish_unbase64[(const unsigned char)*(data++)];
            if (d == IB) goto decrypt_end;
            binary[word] |= d << bit;
            bit += 6;
            if (i == 5) {
                bit = 0;
                word = 0;
            }
        }
        
        // Decrypt block
        BF_decrypt(binary, &bfkey);
        
        // Copy to buffer
        GET_BYTES(end, binary[0]);
        GET_BYTES(end, binary[1]);
    }
    
  decrypt_end:
    *end = '\0';
    return decrypted;
}

/**
 * Encrypts a message (see fish_decrypt). The key is searched for in the
 * key store.
 */
char *fish_encrypt_for_nick(const char *nick, const char *data) {
    char *key;
    char *encrypted;

    // Look for key
    key = keystore_get_key(nick);
    if (!key) return NULL;
    
    // Encrypt
    encrypted = fish_encrypt(key, strlen(key), data);
    
    free(key);
    return encrypted;
}

/**
 * Decrypts a message (see fish_decrypt). The key is searched for in the
 * key store.
 */
char *fish_decrypt_from_nick(const char *nick, const char *data) {
    char *key;
    char *decrypted;
    // Look for key
    key = keystore_get_key(nick);
    if (!key) return NULL;
    
    // Decrypt
    decrypted = fish_decrypt(key, strlen(key), data);
    
    free(key);
    return decrypted;
}