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Diffstat (limited to 'SDL_Core/src/thirdPartyLibs/MessageBroker/src/lib_messagebroker/websocket_handler.cpp')
-rw-r--r--SDL_Core/src/thirdPartyLibs/MessageBroker/src/lib_messagebroker/websocket_handler.cpp655
1 files changed, 0 insertions, 655 deletions
diff --git a/SDL_Core/src/thirdPartyLibs/MessageBroker/src/lib_messagebroker/websocket_handler.cpp b/SDL_Core/src/thirdPartyLibs/MessageBroker/src/lib_messagebroker/websocket_handler.cpp
deleted file mode 100644
index 18a07a1b4..000000000
--- a/SDL_Core/src/thirdPartyLibs/MessageBroker/src/lib_messagebroker/websocket_handler.cpp
+++ /dev/null
@@ -1,655 +0,0 @@
-/**
- * \file websocket_handler.cpp
- * \brief WebSocket Handler.
- * \author AKara
- */
-
-#include <cstdio>
-
-#include <cstring>
-#include <sstream>
-#include <netinet/in.h>
-
-#ifdef _WIN32
-#include <winsock2.h>
-#endif//_WIN32
-
-#include "websocket_handler.hpp"
-
-#include "libMBDebugHelper.h"
-#include "md5.h"
-
-namespace NsMessageBroker
-{
-
- unsigned int CWebSocketHandler::parseWebSocketDataLength(
- const char* Buffer, unsigned int& b_size) {
-
- unsigned char payload =
- (unsigned char)((Buffer[1] & 0x40) | (Buffer[1] & 0x20) |
- (Buffer[1] & 0x10) | (Buffer[1] & 0x08) | (Buffer[1] & 0x04) |
- (Buffer[1] & 0x02) | (Buffer[1] & 0x01));
- unsigned long length = 0;
- unsigned char position = 2; // current buffer position
-
- switch(payload) {
- case 126:
- {
- length = (unsigned char)Buffer[position++];
- length <<=8;
- length |= (unsigned char)Buffer[position++];
- break;
- }
- case 127:
- {
- length = (unsigned char)Buffer[position++];
- length <<=8;
- length |= (unsigned char)Buffer[position++];
- length <<=8;
- length |= (unsigned char)Buffer[position++];
- length <<=8;
- length |= (unsigned char)Buffer[position++];
- length <<=8;
- length |= (unsigned char)Buffer[position++];
- length <<=8;
- length |= (unsigned char)Buffer[position++];
- length <<=8;
- length |= (unsigned char)Buffer[position++];
- length <<=8;
- length |= (unsigned char)Buffer[position++];
- break;
- }
- default:
- {
- length = payload;
- return length;
- }
- }
-
- return length;
- }
-
- int CWebSocketHandler::parseWebSocketData(char* Buffer, unsigned int& b_size)
- {
- // Please see RFC6455 standard protocol specification:
- //http://tools.ietf.org/html/rfc6455
- // Chapter 5.2
- DBG_MSG(("CWebSocketHandler::parseWebSocketData()b_size = %d\n", b_size));
- char* recBuffer = Buffer;
- unsigned int parsedBufferPosition = 0;
- unsigned char position = 0; // current buffer position
-
- while (0 < b_size) {
-
- bool fin = ((recBuffer[0] & 0x80) | (recBuffer[0] & 0x01)) == 0x81;
- bool rsv1 = (recBuffer[0] & 0x40) == 0x40;
- bool rsv2 = (recBuffer[0] & 0x20) == 0x20;
- bool rsv3 = (recBuffer[0] & 0x10) == 0x10;
- unsigned char opCode = ((recBuffer[0] & 0x08) | (recBuffer[0] & 0x04) |
- (recBuffer[0] & 0x02) | (recBuffer[0] & 0x01));
- bool mask = (recBuffer[1] & 0x80) == 0x80;
-
- DBG_MSG(("CWebSocketHandler::fin = %d recBuffer[0] = 0x%02X\n"
- " parsedlength = %d b_size= %d parsedBufferPosition = %d\n",
- fin, recBuffer[0], parsedBufferPosition + position,
- b_size, parsedBufferPosition));
-
-
- if (false == fin) {
- break;
- }
-
- unsigned char payload = (unsigned char)
- ((recBuffer[1] & 0x40) | (recBuffer[1] & 0x20) | (recBuffer[1] & 0x10) |
- (recBuffer[1] & 0x08) | (recBuffer[1] & 0x04) | (recBuffer[1] & 0x02) |
- (recBuffer[1] & 0x01));
-
- unsigned int size = b_size;
- unsigned long length = parseWebSocketDataLength(recBuffer, size);
- position = 2;
-
- if (length > size) {
- break;
- }
-
- switch(payload) {
- case 126:
- {
- position +=2;
- break;
- }
- case 127:
- {
- position +=8;
- break;
- }
- default:
- {
- break;
- }
- }
-
- if (mask)
- {
- unsigned char maskKeys[4];
- maskKeys[0] = recBuffer[position++];
- maskKeys[1] = recBuffer[position++];
- maskKeys[2] = recBuffer[position++];
- maskKeys[3] = recBuffer[position++];
- DBG_MSG(("CWebSocketHandler::parseWebSocketData()maskKeys[0]:0x%02X;"
- " maskKeys[1]:0x%02X; maskKeys[2]:0x%02X; maskKeys[3]:0x%02X\n"
- , maskKeys[0], maskKeys[1], maskKeys[2], maskKeys[3]));
- for( unsigned long i = position; i < position+length; i++)
- {
- recBuffer[i] = recBuffer[i] ^ maskKeys[(i-position)%4];
- }
- }
- DBG_MSG(("CWebSocketHandler::parseWebSocketData()length:%d; size:%d;"
- " position:%d\n", (int)length, size, position));
-
- for( unsigned long i = position; i < size, i < position+length; i++)
- {
- Buffer[parsedBufferPosition++] = recBuffer[i];
- }
-
- recBuffer += length+position;
- b_size -= length+position;
-
- }
- b_size = parsedBufferPosition;
- return b_size;
- }
-
- int CWebSocketHandler::prepareWebSocketDataHeader(unsigned char* Buffer,
- unsigned long long b_size)
- {
- unsigned int headerLength = 2;
- unsigned char payload;
-
- memset(Buffer, 0, headerLength);
- Buffer[0] = 0x81; // 129
-
- if (b_size <= 125)
- {
- payload = b_size;
- Buffer[1] = b_size; // string length
- } else if (b_size >= 126 && b_size <= 65535)
- {
- headerLength += 2;
- payload = 126;
- Buffer[1] = 0x7E; // 126
- } else
- {
- headerLength += 8;
- payload = 127;
- Buffer[1] = 0x7F; // 127
- }
-
-
- if (payload == 126)
- {
- Buffer[2] = (b_size>>8);
- Buffer[3] = b_size;
- } else if (payload == 127)
- {
- Buffer[9] = (b_size & 0xFF);
- Buffer[8] = ((b_size>>8) & 0xFF);
- Buffer[7] = ((b_size>>16) & 0xFF);
- Buffer[6] = ((b_size>>24) & 0xFF);
- Buffer[5] = ((b_size>>32) & 0xFF);
- Buffer[4] = ((b_size>>40) & 0xFF);
- Buffer[3] = ((b_size>>48) & 0xFF);
- Buffer[2] = ((b_size>>56) & 0xFF);
- }
- return headerLength;
-}
-
- void CWebSocketHandler::handshake_0405(std::string &key)
- {
- static const char *websocket_magic_guid_04 =
- "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
- char accept_buf[MAX_WEBSOCKET_04_KEY_LEN + 37];
- unsigned char hash[20] = {0xb3, 0x7a, 0x4f, 0x2c, 0xc0, 0x62, 0x4f, 0x16, 0x90, 0xf6, 0x46, 0x06, 0xcf, 0x38, 0x59, 0x45, 0xb2, 0xbe, 0xc4, 0xea};
- int accept_len;
-
- strcpy(accept_buf, key.c_str());
- strcpy(accept_buf + key.length(), websocket_magic_guid_04);
-
- SHA1((unsigned char *)accept_buf, key.length() + strlen(websocket_magic_guid_04), hash);
-
- accept_len = lws_b64_encode_string((char *)hash, 20, accept_buf, sizeof accept_buf);
- if (accept_len < 0)
- {
- fprintf(stderr, "Base64 encoded hash too long\n");
- }
- fprintf(stderr, "accept_buf: %s\n", accept_buf);
- key = accept_buf;
- }
-
- void CWebSocketHandler::sha1_step(struct sha1_ctxt *ctxt)
- {
- unsigned int a, b, c, d, e;
- size_t t, s;
- unsigned int tmp;
-
- struct sha1_ctxt tctxt;
-
- memcpy(&tctxt.m.b8[0], &ctxt->m.b8[0], 64);
- ctxt->m.b8[0] = tctxt.m.b8[3]; ctxt->m.b8[1] = tctxt.m.b8[2];
- ctxt->m.b8[2] = tctxt.m.b8[1]; ctxt->m.b8[3] = tctxt.m.b8[0];
- ctxt->m.b8[4] = tctxt.m.b8[7]; ctxt->m.b8[5] = tctxt.m.b8[6];
- ctxt->m.b8[6] = tctxt.m.b8[5]; ctxt->m.b8[7] = tctxt.m.b8[4];
- ctxt->m.b8[8] = tctxt.m.b8[11]; ctxt->m.b8[9] = tctxt.m.b8[10];
- ctxt->m.b8[10] = tctxt.m.b8[9]; ctxt->m.b8[11] = tctxt.m.b8[8];
- ctxt->m.b8[12] = tctxt.m.b8[15]; ctxt->m.b8[13] = tctxt.m.b8[14];
- ctxt->m.b8[14] = tctxt.m.b8[13]; ctxt->m.b8[15] = tctxt.m.b8[12];
- ctxt->m.b8[16] = tctxt.m.b8[19]; ctxt->m.b8[17] = tctxt.m.b8[18];
- ctxt->m.b8[18] = tctxt.m.b8[17]; ctxt->m.b8[19] = tctxt.m.b8[16];
- ctxt->m.b8[20] = tctxt.m.b8[23]; ctxt->m.b8[21] = tctxt.m.b8[22];
- ctxt->m.b8[22] = tctxt.m.b8[21]; ctxt->m.b8[23] = tctxt.m.b8[20];
- ctxt->m.b8[24] = tctxt.m.b8[27]; ctxt->m.b8[25] = tctxt.m.b8[26];
- ctxt->m.b8[26] = tctxt.m.b8[25]; ctxt->m.b8[27] = tctxt.m.b8[24];
- ctxt->m.b8[28] = tctxt.m.b8[31]; ctxt->m.b8[29] = tctxt.m.b8[30];
- ctxt->m.b8[30] = tctxt.m.b8[29]; ctxt->m.b8[31] = tctxt.m.b8[28];
- ctxt->m.b8[32] = tctxt.m.b8[35]; ctxt->m.b8[33] = tctxt.m.b8[34];
- ctxt->m.b8[34] = tctxt.m.b8[33]; ctxt->m.b8[35] = tctxt.m.b8[32];
- ctxt->m.b8[36] = tctxt.m.b8[39]; ctxt->m.b8[37] = tctxt.m.b8[38];
- ctxt->m.b8[38] = tctxt.m.b8[37]; ctxt->m.b8[39] = tctxt.m.b8[36];
- ctxt->m.b8[40] = tctxt.m.b8[43]; ctxt->m.b8[41] = tctxt.m.b8[42];
- ctxt->m.b8[42] = tctxt.m.b8[41]; ctxt->m.b8[43] = tctxt.m.b8[40];
- ctxt->m.b8[44] = tctxt.m.b8[47]; ctxt->m.b8[45] = tctxt.m.b8[46];
- ctxt->m.b8[46] = tctxt.m.b8[45]; ctxt->m.b8[47] = tctxt.m.b8[44];
- ctxt->m.b8[48] = tctxt.m.b8[51]; ctxt->m.b8[49] = tctxt.m.b8[50];
- ctxt->m.b8[50] = tctxt.m.b8[49]; ctxt->m.b8[51] = tctxt.m.b8[48];
- ctxt->m.b8[52] = tctxt.m.b8[55]; ctxt->m.b8[53] = tctxt.m.b8[54];
- ctxt->m.b8[54] = tctxt.m.b8[53]; ctxt->m.b8[55] = tctxt.m.b8[52];
- ctxt->m.b8[56] = tctxt.m.b8[59]; ctxt->m.b8[57] = tctxt.m.b8[58];
- ctxt->m.b8[58] = tctxt.m.b8[57]; ctxt->m.b8[59] = tctxt.m.b8[56];
- ctxt->m.b8[60] = tctxt.m.b8[63]; ctxt->m.b8[61] = tctxt.m.b8[62];
- ctxt->m.b8[62] = tctxt.m.b8[61]; ctxt->m.b8[63] = tctxt.m.b8[60];
-
- a = H(0); b = H(1); c = H(2); d = H(3); e = H(4);
-
- for (t = 0; t < 20; t++)
- {
- s = t & 0x0f;
- if (t >= 16)
- W(s) = S(1, W((s+13) & 0x0f) ^ W((s+8) & 0x0f) ^
- W((s+2) & 0x0f) ^ W(s));
-
- tmp = S(5, a) + F0(b, c, d) + e + W(s) + K(t);
- e = d; d = c; c = S(30, b); b = a; a = tmp;
- }
- for (t = 20; t < 40; t++)
- {
- s = t & 0x0f;
- W(s) = S(1, W((s+13) & 0x0f) ^ W((s+8) & 0x0f) ^
- W((s+2) & 0x0f) ^ W(s));
- tmp = S(5, a) + F1(b, c, d) + e + W(s) + K(t);
- e = d; d = c; c = S(30, b); b = a; a = tmp;
- }
- for (t = 40; t < 60; t++)
- {
- s = t & 0x0f;
- W(s) = S(1, W((s+13) & 0x0f) ^ W((s+8) & 0x0f) ^
- W((s+2) & 0x0f) ^ W(s));
- tmp = S(5, a) + F2(b, c, d) + e + W(s) + K(t);
- e = d; d = c; c = S(30, b); b = a; a = tmp;
- }
- for (t = 60; t < 80; t++)
- {
- s = t & 0x0f;
- W(s) = S(1, W((s+13) & 0x0f) ^ W((s+8) & 0x0f) ^
- W((s+2) & 0x0f) ^ W(s));
- tmp = S(5, a) + F3(b, c, d) + e + W(s) + K(t);
- e = d; d = c; c = S(30, b); b = a; a = tmp;
- }
-
- H(0) = H(0) + a;
- H(1) = H(1) + b;
- H(2) = H(2) + c;
- H(3) = H(3) + d;
- H(4) = H(4) + e;
-
- memset(&ctxt->m.b8[0], 0, 64);
- }
-
- void CWebSocketHandler::sha1_init(struct sha1_ctxt *ctxt)
- {
- memset(ctxt, 0, sizeof(struct sha1_ctxt));
- H(0) = 0x67452301;
- H(1) = 0xefcdab89;
- H(2) = 0x98badcfe;
- H(3) = 0x10325476;
- H(4) = 0xc3d2e1f0;
- }
-
- void CWebSocketHandler::sha1_pad(struct sha1_ctxt *ctxt)
- {
- size_t padlen; /*pad length in bytes*/
- size_t padstart;
-
- PUTPAD(0x80);
-
- padstart = COUNT % 64;
- padlen = 64 - padstart;
- if (padlen < 8)
- {
- memset(&ctxt->m.b8[padstart], 0, padlen);
- COUNT += padlen;
- COUNT %= 64;
- sha1_step(ctxt);
- padstart = COUNT % 64; /* should be 0 */
- padlen = 64 - padstart; /* should be 64 */
- }
- memset(&ctxt->m.b8[padstart], 0, padlen - 8);
- COUNT += (padlen - 8);
- COUNT %= 64;
-
- PUTPAD(ctxt->c.b8[7]); PUTPAD(ctxt->c.b8[6]);
- PUTPAD(ctxt->c.b8[5]); PUTPAD(ctxt->c.b8[4]);
- PUTPAD(ctxt->c.b8[3]); PUTPAD(ctxt->c.b8[2]);
- PUTPAD(ctxt->c.b8[1]); PUTPAD(ctxt->c.b8[0]);
- }
-
- void CWebSocketHandler::sha1_loop(struct sha1_ctxt *ctxt, const unsigned char *input, size_t len)
- {
- size_t gaplen;
- size_t gapstart;
- size_t off;
- size_t copysiz;
-
- off = 0;
-
- while (off < len)
- {
- gapstart = COUNT % 64;
- gaplen = 64 - gapstart;
-
- copysiz = (gaplen < len - off) ? gaplen : len - off;
- memcpy(&ctxt->m.b8[gapstart], &input[off], copysiz);
- COUNT += copysiz;
- COUNT %= 64;
- ctxt->c.b64[0] += copysiz * 8;
- if (COUNT % 64 == 0)
- sha1_step(ctxt);
- off += copysiz;
- }
- }
-
- void CWebSocketHandler::sha1_result(struct sha1_ctxt *ctxt, unsigned char* digest0)
- {
- unsigned char *digest;
-
- digest = (unsigned char *)digest0;
- sha1_pad(ctxt);
- digest[0] = ctxt->h.b8[3]; digest[1] = ctxt->h.b8[2];
- digest[2] = ctxt->h.b8[1]; digest[3] = ctxt->h.b8[0];
- digest[4] = ctxt->h.b8[7]; digest[5] = ctxt->h.b8[6];
- digest[6] = ctxt->h.b8[5]; digest[7] = ctxt->h.b8[4];
- digest[8] = ctxt->h.b8[11]; digest[9] = ctxt->h.b8[10];
- digest[10] = ctxt->h.b8[9]; digest[11] = ctxt->h.b8[8];
- digest[12] = ctxt->h.b8[15]; digest[13] = ctxt->h.b8[14];
- digest[14] = ctxt->h.b8[13]; digest[15] = ctxt->h.b8[12];
- digest[16] = ctxt->h.b8[19]; digest[17] = ctxt->h.b8[18];
- digest[18] = ctxt->h.b8[17]; digest[19] = ctxt->h.b8[16];
- }
-
- /*
- * This should look and work like the libcrypto implementation
- */
-
- unsigned char * CWebSocketHandler::SHA1(const unsigned char *d, size_t n, unsigned char *md)
- {
- struct sha1_ctxt ctx;
-
- sha1_init(&ctx);
- sha1_loop(&ctx, d, n);
- sha1_result(&ctx, (unsigned char*)md);
-
- return md;
- }
-
- int CWebSocketHandler::lws_b64_encode_string(const char *in, int in_len, char *out, int out_size)
- {
- unsigned char triple[3];
- int i;
- int len;
- int line = 0;
- int done = 0;
-
- while (in_len)
- {
- len = 0;
- for (i = 0; i < 3; i++)
- {
- if (in_len)
- {
- triple[i] = *in++;
- len++;
- in_len--;
- } else
- triple[i] = 0;
- }
- if (len)
- {
-
- if (done + 4 >= out_size)
- return -1;
-
- *out++ = encode[triple[0] >> 2];
- *out++ = encode[((triple[0] & 0x03) << 4) |
- ((triple[1] & 0xf0) >> 4)];
- *out++ = (len > 1 ? encode[((triple[1] & 0x0f) << 2) |
- ((triple[2] & 0xc0) >> 6)] : '=');
- *out++ = (len > 2 ? encode[triple[2] & 0x3f] : '=');
-
- done += 4;
- line += 4;
- }
- if (line >= 72)
- {
-
- if (done + 2 >= out_size)
- return -1;
-
- *out++ = '\r';
- *out++ = '\n';
- done += 2;
- line = 0;
- }
- }
-
- if (done + 1 >= out_size)
- return -1;
-
- *out++ = '\0';
-
- return done;
- }
-
- /*
- * returns length of decoded string in out, or -1 if out was too small
- * according to out_size
- */
-
- int CWebSocketHandler::lws_b64_decode_string(const char *in, char *out, int out_size)
- {
- int len;
- int i;
- int done = 0;
- unsigned char v;
- unsigned char quad[4];
-
- while (*in)
- {
-
- len = 0;
- for (i = 0; i < 4 && *in; i++)
- {
-
- v = 0;
- while (*in && !v)
- {
-
- v = *in++;
- v = (v < 43 || v > 122) ? 0 : decode[v - 43];
- if (v)
- v = (v == '$') ? 0 : v - 61;
- if (*in)
- {
- len++;
- if (v)
- quad[i] = v - 1;
- } else
- quad[i] = 0;
- }
- }
- if (!len)
- continue;
-
- if (out_size < (done + len - 1))
- /* out buffer is too small */
- return -1;
-
- if (len >= 2)
- *out++ = quad[0] << 2 | quad[1] >> 4;
- if (len >= 3)
- *out++ = quad[1] << 4 | quad[2] >> 2;
- if (len >= 4)
- *out++ = ((quad[2] << 6) & 0xc0) | quad[3];
-
- done += len - 1;
- }
-
- if (done + 1 >= out_size)
- return -1;
-
- *out++ = '\0';
-
- return done;
- }
-
- int CWebSocketHandler::lws_b64_selftest(void)
- {
- char buf[64];
- int n;
- unsigned int test;
- static const char *plaintext[] = {"sanity check base 64"};
- static const char *coded[] = {"c2FuaXR5IGNoZWNrIGJhc2UgNjQ="};
-
- for (test = 0; test < sizeof plaintext / sizeof(plaintext[0]); test++)
- {
-
- buf[sizeof(buf) - 1] = '\0';
- n = lws_b64_encode_string(plaintext[test],
- strlen(plaintext[test]), buf, sizeof buf);
- if (n != (int)strlen(coded[test]) || strcmp(buf, coded[test]))
- {
- fprintf(stderr, "Failed lws_b64 encode selftest "
- "%d result '%s' %d\n", test, buf, n);
- return -1;
- }
-
- buf[sizeof(buf) - 1] = '\0';
- n = lws_b64_decode_string(coded[test], buf, sizeof buf);
- if (n != (int)strlen(plaintext[test]) ||
- strcmp(buf, plaintext[test]))
- {
- fprintf(stderr, "Failed lws_b64 decode selftest "
- "%d result '%s' %d\n", test, buf, n);
- return -1;
- }
- }
-
- return 0;
- }
-
- rawBytes CWebSocketHandler::handshake_hybi00(const std::string &key1, const std::string &key2, const rawBytes &key3)
- {
- if (key3.size() < 8)
- {
- DBG_MSG_ERROR(("key3's size is %d, less than 8 bytes\n", key3.size()));
- return rawBytes();
- }
-
- unsigned long number1 = extractNumber(key1);
- unsigned long number2 = extractNumber(key2);
- DBG_MSG(("number1 is %ld, number2 is %ld\n", number1, number2));
-
- if ((number1 == 0) || (number2 == 0))
- {
- return rawBytes();
- }
-
- // represent the numbers in big-endian format (network-byte order)
- unsigned long bigEndianNumber1 = htonl(number1);
- unsigned long bigEndianNumber2 = htonl(number2);
-
- // the temporary key consists of bytes of the first and second numbers
- // and the key3
- rawBytes key(8);
- memcpy(&key[0], &bigEndianNumber1, 4);
- memcpy(&key[4], &bigEndianNumber2, 4);
- key.insert(key.end(), key3.begin(), key3.begin() + 8);
-
- MD5 md5(std::string(key.begin(), key.end()));
- char digest[16];
- md5.getdigest(digest);
- rawBytes resultBytes(&digest[0], &digest[16]);
-
- return resultBytes;
- }
-
- unsigned long CWebSocketHandler::extractNumber(const std::string &key) const
- {
- // leave digits only
- // and count the number of spaces in the key
- std::string keyDigits;
- int spacesCountKey = 0;
- for (unsigned int index = 0; index < key.length(); ++index)
- {
- char keyChar = key[index];
- if (keyChar == ' ')
- {
- ++spacesCountKey;
- }
- else if (isdigit(keyChar))
- {
- keyDigits += keyChar;
- }
- }
-
- unsigned long result = 0;
-
- // convert string to number
- long long numberKey;
- if (std::stringstream(keyDigits) >> numberKey)
- {
- if (spacesCountKey != 0)
- {
- if (numberKey % spacesCountKey == 0)
- {
- // divide the number by the count
- result = numberKey / spacesCountKey;
- }
- else
- {
- // key is not an integral multiple of spaces count
- }
- }
- else
- {
- // the denominator is 0
- }
- }
- else
- {
- // couldn't convert
- }
-
- return result;
- }
-
-} /* namespace NsMessageBroker */
-
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