Annotation of parser3/src/classes/math.C, revision 1.80
1.1 parser 1: /** @file
2: Parser: @b math parser class.
3:
1.80 ! moko 4: Copyright (c) 2001-2015 Art. Lebedev Studio (http://www.artlebedev.com)
1.20 paf 5: Author: Alexandr Petrosian <paf@design.ru>(http://paf.design.ru)
1.28 paf 6:
7: portions from gen_uuid.c,
8: Copyright (C) 1996, 1997, 1998, 1999 Theodore Ts'o.
1.22 paf 9: */
1.1 parser 10:
1.34 paf 11: #include "pa_vmethod_frame.h"
1.1 parser 12: #include "pa_common.h"
13: #include "pa_vint.h"
1.2 parser 14: #include "pa_vmath.h"
1.69 moko 15: #include "pa_vfile.h"
1.1 parser 16: #include "pa_request.h"
1.19 paf 17: #include "pa_md5.h"
1.65 moko 18: #include "pa_sha2.h"
1.55 misha 19: #include "pa_random.h"
1.1 parser 20:
1.34 paf 21: #ifdef HAVE_CRYPT
1.76 moko 22: extern "C" char *crypt(const char* , const char* );
1.20 paf 23: #endif
24:
1.80 ! moko 25: volatile const char * IDENT_MATH_C="$Id: math.C,v 1.79 2015/10/12 21:04:58 moko Exp $";
1.59 moko 26:
1.1 parser 27: // defines
28:
1.20 paf 29: #define MAX_SALT 8
1.1 parser 30:
31: // class
32:
1.34 paf 33: class MMath: public Methoded {
1.1 parser 34: public:
1.34 paf 35: MMath();
1.5 parser 36:
1.1 parser 37: public: // Methoded
1.15 paf 38: bool used_directly() { return false; }
1.1 parser 39: };
40:
1.34 paf 41: // global variables
42:
43: DECLARE_CLASS_VAR(math, 0 /*fictive*/, new MMath);
44:
1.1 parser 45: // methods
1.34 paf 46:
47: static void _random(Request& r, MethodParams& params) {
1.41 paf 48: double top=params.as_double(0, "range must be expression", r);
1.34 paf 49: if(top<=0 || top>MAX_UINT)
1.45 misha 50: throw Exception(PARSER_RUNTIME,
1.34 paf 51: 0,
52: "top(%g) must be [1..%u]", top, MAX_UINT);
1.1 parser 53:
1.34 paf 54: r.write_no_lang(*new VInt(_random(uint(top))));
1.1 parser 55: }
56:
57:
1.20 paf 58: typedef double(*math1_func_ptr)(double);
1.3 parser 59: static double frac(double param) { return param-trunc(param); }
60: static double degrees(double param) { return param /PI *180; }
61: static double radians(double param) { return param /180 *PI; }
1.1 parser 62:
1.34 paf 63: static void math1(Request& r, MethodParams& params, math1_func_ptr func) {
1.41 paf 64: double param=params.as_double(0, "parameter must be expression", r);
65: double result=func(param);
1.34 paf 66: r.write_no_lang(*new VDouble(result));
1.1 parser 67: }
68:
69: #define MATH1(name) \
1.34 paf 70: static void _##name(Request& r, MethodParams& params) {\
71: math1(r, params, &name);\
1.1 parser 72: }
1.74 moko 73:
1.1 parser 74: #define MATH1P(name_parser, name_c) \
1.34 paf 75: static void _##name_parser(Request& r, MethodParams& params) {\
76: math1(r, params, &name_c);\
1.1 parser 77: }
1.74 moko 78:
79: MATH1(round)
80: MATH1(floor)
81: MATH1P(ceiling, ceil)
82: MATH1(trunc)
83: MATH1(frac)
84: MATH1P(abs, fabs)
85: MATH1(sign)
86: MATH1(exp)
87: MATH1(log)
88: MATH1(log10)
89: MATH1(sin)
90: MATH1(asin)
91: MATH1(cos)
92: MATH1(acos)
93: MATH1(tan)
94: MATH1(atan)
95: MATH1(degrees)
96: MATH1(radians)
97: MATH1(sqrt)
1.1 parser 98:
99:
100: typedef double (*math2_func_ptr)(double, double);
1.34 paf 101: static void math2(Request& r, MethodParams& params, math2_func_ptr func) {
1.41 paf 102: double a=params.as_double(0, "parameter must be expression", r);
103: double b=params.as_double(1, "parameter must be expression", r);
104: double result=func(a, b);
1.34 paf 105: r.write_no_lang(*new VDouble(result));
1.1 parser 106: }
107:
108: #define MATH2(name) \
1.34 paf 109: static void _##name(Request& r, MethodParams& params) {\
110: math2(r, params, &name);\
1.1 parser 111: }
1.74 moko 112:
113: MATH2(pow)
1.1 parser 114:
1.77 moko 115: inline bool is_salt_body_char(unsigned char c) {
1.73 moko 116: return pa_isalnum(c) || c == '.' || c=='/';
1.20 paf 117: }
1.77 moko 118:
1.34 paf 119: static size_t calc_prefix_size(const char* salt) {
1.37 paf 120: if(strlen(salt)) {
1.39 paf 121: if(!is_salt_body_char((unsigned char)salt[0])) { // $... {...
1.34 paf 122: const char* cur=salt+1; // skip
1.39 paf 123: while(is_salt_body_char((unsigned char)*cur++)) // ...$ ...}
1.20 paf 124: ;
125: return cur-salt;
126: } else
127: return 0;
128: } else
129: return 0;
130: }
1.34 paf 131: static void _crypt(Request& r, MethodParams& params) {
132: const char* password=params.as_string(0, "password must be string").cstr();
133: const char* maybe_bodyless_salt=params.as_string(1, "salt must be string").cstr();
1.20 paf 134:
135: size_t prefix_size=calc_prefix_size(maybe_bodyless_salt);
1.34 paf 136: const char* normal_salt;
1.20 paf 137: char normalize_buf[MAX_STRING];
138: if(prefix_size==strlen(maybe_bodyless_salt)) { // bodyless?
139: strncpy(normalize_buf, maybe_bodyless_salt, MAX_STRING-MAX_SALT-1);
140: char *cur=normalize_buf+strlen(normalize_buf);
141: // sould add up MAX_SALT random chars
142: static unsigned char itoa64[] = /* 0 ... 63 => ASCII - 64 */
143: "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
144: for(int i=0; i<MAX_SALT; i++)
145: *cur++=itoa64[_random(64)];
146: *cur=0;
147: normal_salt=normalize_buf;
148: } else
149: normal_salt=maybe_bodyless_salt;
1.19 paf 150:
1.54 misha 151: /* FreeBSD style MD5 string
152: */
153: if(strncmp(normal_salt, PA_MD5PW_ID, PA_MD5PW_IDLEN) == 0) {
1.19 paf 154: const size_t sample_size=120;
1.34 paf 155: char *sample_buf=new(PointerFreeGC) char[sample_size];
156: pa_MD5Encode((const unsigned char *)password,
157: (const unsigned char *)normal_salt, sample_buf, sample_size);
158: String sample(sample_buf);
159: r.write_pass_lang(sample);
1.54 misha 160: } else {
1.20 paf 161: #ifdef HAVE_CRYPT
1.34 paf 162: const char* static_sample_buf=crypt(password, normal_salt);
163: if(!static_sample_buf // nothing generated
164: || !static_sample_buf[0] // generated nothing
165: || strncmp(static_sample_buf, normal_salt, prefix_size)!=0) // salt prefix not preserved
1.45 misha 166: throw Exception(PARSER_RUNTIME,
1.34 paf 167: 0,
168: "crypt on this platform does not support '%.*s' salt prefix", prefix_size, normal_salt);
1.20 paf 169:
1.34 paf 170: r.write_pass_lang(String(pa_strdup(static_sample_buf)));
1.20 paf 171: #else
1.45 misha 172: throw Exception(PARSER_RUNTIME,
1.34 paf 173: 0,
1.19 paf 174: "salt must start with '" PA_MD5PW_ID "'");
1.20 paf 175: #endif
176: }
1.19 paf 177: }
178:
1.34 paf 179: static void _md5(Request& r, MethodParams& params) {
1.72 moko 180: const char *string=params.as_string(0, PARAMETER_MUST_BE_STRING).cstr_to_string_body_untaint(String::L_AS_IS, r.connection(false), &r.charsets).cstr();
1.27 paf 181:
182: PA_MD5_CTX context;
183: unsigned char digest[16];
1.34 paf 184: pa_MD5Init(&context);
185: pa_MD5Update(&context, (const unsigned char*)string, strlen(string));
186: pa_MD5Final(digest, &context);
1.27 paf 187:
1.34 paf 188: r.write_pass_lang(*new String(hex_string(digest, sizeof(digest), false)));
1.26 paf 189: }
190:
1.49 misha 191:
192: //SHA-1:
193:
1.50 misha 194: struct SHA1Context {
1.54 misha 195: unsigned Message_Digest[5], Length_Low, Length_High;
196: unsigned int Message_Block[64];
197: int Message_Block_Index, Computed, Corrupted;
1.50 misha 198: };
1.49 misha 199:
200: #define SHA1CircularShift(bits,word) ((((word) << (bits)) & 0xFFFFFFFF)|((word) >> (32-(bits))))
201: void SHA1ProcessMessageBlock(SHA1Context *);
202: void SHA1PadMessage(SHA1Context *);
1.50 misha 203: void SHA1Reset(SHA1Context *context) {
1.54 misha 204: context->Length_Low = context->Length_High = context->Message_Block_Index = 0;
205: context->Message_Digest[0] = 0x67452301;
206: context->Message_Digest[1] = 0xEFCDAB89;
207: context->Message_Digest[2] = 0x98BADCFE;
208: context->Message_Digest[3] = 0x10325476;
209: context->Message_Digest[4] = 0xC3D2E1F0;
210: context->Computed = context->Corrupted = 0;
1.50 misha 211: }
1.49 misha 212:
1.50 misha 213: int SHA1Result(SHA1Context *context) {
1.54 misha 214: if (context->Corrupted)
215: return 0;
216: if (!context->Computed) {
217: SHA1PadMessage(context);
218: context->Computed = 1;
219: }
220: return 1;
221: }
222:
223: void SHA1Input(SHA1Context *context, const unsigned char *message_array, unsigned length) {
224: if (!length)
225: return;
226: if (context->Computed || context->Corrupted) {
227: context->Corrupted = 1;
228: return;
229: }
230:
231: while(length-- && !context->Corrupted) {
232: context->Message_Block[context->Message_Block_Index++] = (*message_array & 0xFF);
233: context->Length_Low += 8;
234: context->Length_Low &= 0xFFFFFFFF;
235: if (!context->Length_Low && !(context->Length_High=((1+context->Length_High)&0xFFFFFFFF)))
236: context->Corrupted = 1; // too long message
237: if (context->Message_Block_Index == 64)
238: SHA1ProcessMessageBlock(context);
239: message_array++;
1.49 misha 240: }
1.50 misha 241: }
1.49 misha 242:
1.50 misha 243: void SHA1ProcessMessageBlock(SHA1Context *context) {
1.54 misha 244: const unsigned K[] = {0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xCA62C1D6 };
245: int t;
246: unsigned temp, W[80], buf[5];
247: unsigned &A=buf[0], &B=buf[1], &C=buf[2], &D=buf[3], &E=buf[4];
1.50 misha 248:
1.54 misha 249: for(t = 0; t < 16; t++)
250: W[t] = (((unsigned) context->Message_Block[t * 4]) << 24) | (((unsigned) context->Message_Block[t * 4 + 1]) << 16) | (((unsigned) context->Message_Block[t * 4 + 2]) << 8) | ((unsigned) context->Message_Block[t * 4 + 3]);
1.50 misha 251:
1.54 misha 252: for(t = 16; t < 80; t++)
253: W[t] = SHA1CircularShift(1,W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16]);
1.49 misha 254:
1.54 misha 255: memcpy (buf, context->Message_Digest, sizeof(buf));
256: for(t = 0; t < 20; t++) {
257: temp = (SHA1CircularShift(5,A) + ((B & C) | ((~B) & D)) + E + W[t] + K[0]) & 0xFFFFFFFF;
258: E = D; D = C;
259: C = SHA1CircularShift(30,B);
260: B = A; A = temp;
1.49 misha 261: }
262:
1.54 misha 263: for(t = 20; t < 40; t++) {
264: temp = (SHA1CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[1]) & 0xFFFFFFFF;
265: E = D; D = C;
266: C = SHA1CircularShift(30,B);
267: B = A; A = temp;
1.49 misha 268: }
269:
1.54 misha 270: for(t = 40; t < 60; t++) {
271: temp = (SHA1CircularShift(5,A) + ((B & C) | (B & D) | (C & D)) + E + W[t] + K[2]) & 0xFFFFFFFF;
272: E = D; D = C;
273: C = SHA1CircularShift(30,B);
274: B = A; A = temp;
1.49 misha 275: }
276:
1.54 misha 277: for(t = 60; t < 80; t++) {
278: temp = (SHA1CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[3]) & 0xFFFFFFFF;
279: E = D; D = C;
280: C = SHA1CircularShift(30,B);
281: B = A; A = temp;
1.49 misha 282: }
283:
1.54 misha 284: for (t = 0; t < 5; t++)
285: context->Message_Digest[t] = (context->Message_Digest[t] + buf[t]) & 0xFFFFFFFF;
1.50 misha 286:
1.54 misha 287: context->Message_Block_Index = 0;
1.50 misha 288: }
1.49 misha 289:
1.50 misha 290: void SHA1PadMessage(SHA1Context *context) {
1.54 misha 291: context->Message_Block[context->Message_Block_Index++] = 0x80;
1.50 misha 292: if (context->Message_Block_Index > 56) {
293: //was 55, one shift
1.54 misha 294: while(context->Message_Block_Index < 64)
295: context->Message_Block[context->Message_Block_Index++] = 0;
296: SHA1ProcessMessageBlock(context);
297: while(context->Message_Block_Index < 56)
298: context->Message_Block[context->Message_Block_Index++] = 0;
1.50 misha 299: } else
1.54 misha 300: while(context->Message_Block_Index < 56)
301: context->Message_Block[context->Message_Block_Index++] = 0;
302: context->Message_Block[56] = (context->Length_High >> 24) & 0xFF;
303: context->Message_Block[57] = (context->Length_High >> 16) & 0xFF;
304: context->Message_Block[58] = (context->Length_High >> 8) & 0xFF;
305: context->Message_Block[59] = (context->Length_High) & 0xFF;
306: context->Message_Block[60] = (context->Length_Low >> 24) & 0xFF;
307: context->Message_Block[61] = (context->Length_Low >> 16) & 0xFF;
308: context->Message_Block[62] = (context->Length_Low >> 8) & 0xFF;
309: context->Message_Block[63] = (context->Length_Low) & 0xFF;
310: SHA1ProcessMessageBlock(context);
1.50 misha 311: }
1.49 misha 312:
1.62 moko 313: #ifdef PA_BIG_ENDIAN
314: #define SWAP(n) (n)
315: #else
316: #define SWAP(n) (((n) << 24) | (((n) & 0xff00) << 8) | (((n) >> 8) & 0xff00) | ((n) >> 24))
317: #endif
318:
1.64 moko 319: void SHA1ReadDigest(void *buf, SHA1Context *c)
1.62 moko 320: {
1.64 moko 321: if(!SHA1Result(c))
1.62 moko 322: throw Exception (PARSER_RUNTIME, 0, "Can not compute SHA1");
323:
1.64 moko 324: ((uint32_t *)buf)[0] = SWAP(c->Message_Digest[0]);
325: ((uint32_t *)buf)[1] = SWAP(c->Message_Digest[1]);
326: ((uint32_t *)buf)[2] = SWAP(c->Message_Digest[2]);
327: ((uint32_t *)buf)[3] = SWAP(c->Message_Digest[3]);
328: ((uint32_t *)buf)[4] = SWAP(c->Message_Digest[4]);
1.62 moko 329: }
330:
1.54 misha 331: static void _sha1(Request& r, MethodParams& params) {
1.72 moko 332: const char *string = params.as_string(0, PARAMETER_MUST_BE_STRING).cstr_to_string_body_untaint(String::L_AS_IS, r.connection(false), &r.charsets).cstr();
1.49 misha 333:
1.54 misha 334: SHA1Context c;
1.64 moko 335: unsigned char digest[20];
1.54 misha 336: SHA1Reset (&c);
337: SHA1Input (&c, (const unsigned char*)string, strlen(string));
1.64 moko 338: SHA1ReadDigest(digest, &c);
1.54 misha 339:
1.62 moko 340: r.write_pass_lang(*new String(hex_string(digest, sizeof(digest), false)));
341: }
342:
1.64 moko 343: void memxor(char *dest, const char *src, size_t n){
344: for (;n>0;n--) *dest++ ^= *src++;
345: }
346:
1.62 moko 347: #define IPAD 0x36
348: #define OPAD 0x5c
349:
1.65 moko 350: #define HMAC(key,init,update,final,blocklen,digestlen){ \
1.64 moko 351: unsigned char tempdigest[digestlen], keydigest[digestlen]; \
352: size_t keylen=strlen(key); \
1.65 moko 353: /* Reduce the key's size, so that it becomes <= blocklen bytes. */ \
354: if (keylen > blocklen){ \
1.64 moko 355: init(&c); \
356: update(&c,(const unsigned char*)hmac, keylen); \
357: final(keydigest, &c); \
358: key = (char *)keydigest; \
359: keylen = digestlen; \
360: } \
361: /* Compute TEMP from KEY and STRING. */ \
1.65 moko 362: char block[blocklen]; \
363: memset (block, IPAD, blocklen); \
1.64 moko 364: memxor (block, key, keylen); \
365: init(&c); \
1.65 moko 366: update(&c, (const unsigned char*)block, blocklen); \
1.69 moko 367: update(&c, (const unsigned char*)data.str, data.length); \
1.64 moko 368: final(tempdigest, &c); \
369: /* Compute result from KEY and TEMP. */ \
1.65 moko 370: memset (block, OPAD, blocklen); \
1.64 moko 371: memxor (block, key, keylen); \
372: init(&c); \
1.65 moko 373: update(&c, (const unsigned char*)block, blocklen); \
1.64 moko 374: update(&c, (const unsigned char*)tempdigest, digestlen); \
1.62 moko 375: }
1.55 misha 376:
1.62 moko 377: static void _digest(Request& r, MethodParams& params) {
1.63 moko 378: const String &smethod = params.as_string(0, PARAMETER_MUST_BE_STRING);
1.69 moko 379:
380: Value& vdata=params.as_no_junction(1, "parameter must be string or file");
381:
382: String::C data;
383: if(const String* sdata=vdata.get_string()){
1.72 moko 384: String::Body body=sdata->cstr_to_string_body_untaint(String::L_AS_IS, r.connection(false), &r.charsets); // explode content, honor tainting changes
1.69 moko 385: data=String::C(body.cstr(), body.length());
386: } else {
387: VFile *file=vdata.as_vfile(String::L_AS_IS);
388: data=String::C(file->value_ptr(),file->value_size());
389: }
1.62 moko 390:
1.65 moko 391: enum Method { M_MD5, M_SHA1, M_SHA256, M_SHA512 } method;
1.62 moko 392:
1.63 moko 393: if (smethod == "md5") method = M_MD5;
394: else if (smethod == "sha1" ) method = M_SHA1;
1.65 moko 395: else if (smethod == "sha256" ) method = M_SHA256;
396: else if (smethod == "sha512" ) method = M_SHA512;
1.63 moko 397: else throw Exception(PARSER_RUNTIME, &smethod, "must be 'md5' or 'sha1'");
1.62 moko 398:
399: const char *hmac=0;
1.63 moko 400: enum Format { F_HEX, F_BASE64 } format = F_HEX;
1.62 moko 401:
402: if(params.count() == 3)
403: if(HashStringValue* options=params.as_hash(2)) {
404: int valid_options=0;
405: if(Value* value=options->get("hmac")) {
406: hmac=value->as_string().cstr();
407: valid_options++;
408: }
1.63 moko 409: if(Value* value=options->get("format")) {
410: const String& sformat=value->as_string();
411: if (sformat == "hex") format = F_HEX;
412: else if (sformat == "base64" ) format = F_BASE64;
413: else throw Exception(PARSER_RUNTIME, &sformat, "must be 'hex' or 'base64'");
1.62 moko 414: valid_options++;
415: }
416: if(valid_options!=options->count())
417: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
418: }
419:
420: String::C digest;
421:
1.63 moko 422: if(method == M_MD5){
1.64 moko 423: PA_MD5_CTX c;
424: if(hmac){
1.65 moko 425: HMAC(hmac, pa_MD5Init, pa_MD5Update, pa_MD5Final, 64, 16);
1.64 moko 426: } else {
427: pa_MD5Init(&c);
1.69 moko 428: pa_MD5Update(&c, (const unsigned char*)data.str, data.length);
1.64 moko 429: }
1.62 moko 430: char *str=(char *)pa_malloc(16);
1.64 moko 431: pa_MD5Final((unsigned char *)str, &c);
1.62 moko 432: digest = String::C(str, 16);
433: }
434:
1.63 moko 435: if(method == M_SHA1){
1.62 moko 436: SHA1Context c;
437: if(hmac){
1.65 moko 438: HMAC(hmac, SHA1Reset, SHA1Input, SHA1ReadDigest, 64, 20);
1.62 moko 439: } else {
1.64 moko 440: SHA1Reset(&c);
1.69 moko 441: SHA1Input(&c, (const unsigned char*)data.str, data.length);
1.62 moko 442: }
443: char *str=(char *)pa_malloc(20);
1.64 moko 444: SHA1ReadDigest(str, &c);
1.62 moko 445: digest = String::C(str, 20);
446: }
1.49 misha 447:
1.65 moko 448: if(method == M_SHA256){
449: SHA256_CTX c;
450: if(hmac){
451: HMAC(hmac, pa_SHA256_Init, pa_SHA256_Update, pa_SHA256_Final, 64, SHA256_DIGEST_LENGTH);
452: } else {
453: pa_SHA256_Init(&c);
1.69 moko 454: pa_SHA256_Update(&c, (const unsigned char*)data.str, data.length);
1.65 moko 455: }
456: char *str=(char *)pa_malloc(SHA256_DIGEST_LENGTH);
457: pa_SHA256_Final((unsigned char *)str, &c);
458: digest = String::C(str, SHA256_DIGEST_LENGTH);
459: }
460:
461: if(method == M_SHA512){
462: SHA512_CTX c;
463: if(hmac){
464: HMAC(hmac, pa_SHA512_Init, pa_SHA512_Update, pa_SHA512_Final, 128, SHA512_DIGEST_LENGTH);
465: } else {
466: pa_SHA512_Init(&c);
1.69 moko 467: pa_SHA512_Update(&c, (const unsigned char*)data.str, data.length);
1.65 moko 468: }
469: char *str=(char *)pa_malloc(SHA512_DIGEST_LENGTH);
470: pa_SHA512_Final((unsigned char *)str, &c);
471: digest = String::C(str, SHA512_DIGEST_LENGTH);
472: }
473:
1.63 moko 474: if(format == F_HEX){
1.62 moko 475: r.write_pass_lang(*new String(hex_string((unsigned char *)digest.str, digest.length, false)));
476: }
1.63 moko 477: if(format == F_BASE64){
1.62 moko 478: r.write_pass_lang(*new String(pa_base64_encode(digest.str, digest.length)));
479: }
1.54 misha 480: }
1.49 misha 481:
1.55 misha 482: static void _uuid(Request& r, MethodParams& /*params*/) {
483: uuid uuid=get_uuid();
1.49 misha 484:
1.55 misha 485: const size_t bufsize=36+1/*zero-teminator*/+1/*for faulty snprintfs*/;
486: char* cstr=new(PointerFreeGC) char[bufsize];
1.28 paf 487:
1.55 misha 488: snprintf(cstr, bufsize,
489: "%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X",
490: uuid.time_low, uuid.time_mid, uuid.time_hi_and_version,
491: uuid.clock_seq >> 8, uuid.clock_seq & 0xFF,
492: uuid.node[0], uuid.node[1], uuid.node[2],
493: uuid.node[3], uuid.node[4], uuid.node[5]);
1.28 paf 494:
1.55 misha 495: r.write_pass_lang(*new String(cstr));
1.28 paf 496: }
497:
1.34 paf 498: static void _uid64(Request& r, MethodParams& /*params*/) {
1.30 paf 499:
500: unsigned char id[64/8];
501: random(&id, sizeof(id));
502:
1.34 paf 503: r.write_pass_lang(*new String(hex_string(id, sizeof(id), true)));
1.30 paf 504: }
505:
1.43 misha 506: static void _crc32(Request& r, MethodParams& params) {
1.51 misha 507: const char *string=params.as_string(0, PARAMETER_MUST_BE_STRING).cstr();
1.43 misha 508: r.write_no_lang(*new VInt(pa_crc32(string, strlen(string))));
509: }
510:
1.78 moko 511: static void toBase(unsigned long long int value, unsigned int base, char*& ptr){
1.57 misha 512: static const char* hex="0123456789ABCDEF";
1.79 moko 513: unsigned int rest = (unsigned int)(value % base);
1.58 misha 514: if(value >= base)
1.57 misha 515: toBase( (value-rest)/base, base, ptr);
516: *ptr++=(char)hex[rest];
517: }
518:
519: static void _convert(Request& r, MethodParams& params) {
1.60 moko 520: const char *str=params.as_string(0, PARAMETER_MUST_BE_STRING).cstr();
521:
1.57 misha 522: int base_from=params.as_int(1, "base from must be integer", r);
523: if(base_from < 2 || base_from > 16)
524: throw Exception(PARSER_RUNTIME, 0, "base from must be an integer from 2 to 16");
525:
1.60 moko 526: int base_to=params.as_int(2, "base to must be integer", r);
527: if(base_to < 2 || base_to > 16)
528: throw Exception(PARSER_RUNTIME, 0, "base to must be an integer from 2 to 16");
529:
1.61 moko 530: while(isspace(*str))
1.60 moko 531: str++;
532:
533: if(!*str)
534: return;
535:
536: bool negative=false;
537: if(str[0]=='-') {
538: negative=true;
539: str++;
540: } else if(str[0]=='+') {
541: str++;
542: }
543:
1.78 moko 544: unsigned long long int value=pa_atoul(str, base_from);
1.57 misha 545:
1.78 moko 546: char result_cstr[sizeof(unsigned long long int)*8+1/*minus for negative number*/+1/*terminator*/];
1.60 moko 547: char* ptr=result_cstr;
548: if(negative)
549: *ptr++='-';
1.57 misha 550:
551: toBase(value, base_to, ptr);
552: *ptr=0;
553: r.write_pass_lang(*new String(pa_strdup(result_cstr)));
554: }
555:
1.1 parser 556: // constructor
557:
1.34 paf 558: MMath::MMath(): Methoded("math") {
1.1 parser 559: // ^FUNC(expr)
1.28 paf 560: #define ADDX(name, X) \
561: add_native_method(#name, Method::CT_STATIC, _##name, X, X)
562: #define ADD0(name) ADDX(name, 0)
563: #define ADD1(name) ADDX(name, 1)
564: #define ADD2(name) ADDX(name, 2)
1.1 parser 565:
566: ADD1(round); ADD1(floor); ADD1(ceiling);
1.3 parser 567: ADD1(trunc); ADD1(frac);
1.1 parser 568: ADD1(abs); ADD1(sign);
1.46 misha 569: ADD1(exp);
1.48 misha 570: ADD1(log); ADD1(log10);
1.1 parser 571: ADD1(sin); ADD1(asin);
572: ADD1(cos); ADD1(acos);
573: ADD1(tan); ADD1(atan);
1.3 parser 574: ADD1(degrees); ADD1(radians);
1.1 parser 575: ADD1(sqrt);
1.3 parser 576: ADD1(random);
1.1 parser 577:
1.49 misha 578: // ^math:pow(x;y)
1.1 parser 579: ADD2(pow);
580:
1.49 misha 581: // ^math:crypt[password;salt]
1.19 paf 582: ADD2(crypt);
1.26 paf 583:
1.49 misha 584: // ^math:md5[string]
1.26 paf 585: ADD1(md5);
1.5 parser 586:
1.49 misha 587: // ^math:sha1[string]
588: ADD1(sha1);
589:
1.71 moko 590: // ^math:digest[method;string|file;options]
1.62 moko 591: add_native_method("digest", Method::CT_STATIC, _digest, 2, 3);
592:
1.49 misha 593: // ^math:crc32[string]
1.43 misha 594: ADD1(crc32);
595:
1.49 misha 596: // ^math:uuid[]
1.29 paf 597: ADD0(uuid);
598:
1.49 misha 599: // ^math:uid64[]
1.30 paf 600: ADD0(uid64);
1.57 misha 601:
602: // ^math:convert[number](base-from;base-to)
603: add_native_method("convert", Method::CT_STATIC, _convert, 3, 3);
1.1 parser 604: }
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