Annotation of parser3/src/classes/math.C, revision 1.74
1.1 parser 1: /** @file
2: Parser: @b math parser class.
3:
1.59 moko 4: Copyright (c) 2001-2012 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
1.67 moko 22: extern "C" char *crypt(const char* , const char* );
1.20 paf 23: #endif
24:
1.74 ! moko 25: volatile const char * IDENT_MATH_C="$Id: math.C,v 1.73 2015/05/08 15:52:53 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:
1.20 paf 115: inline bool is_salt_body_char(int c) {
1.73 moko 116: return pa_isalnum(c) || c == '.' || c=='/';
1.20 paf 117: }
1.34 paf 118: static size_t calc_prefix_size(const char* salt) {
1.37 paf 119: if(strlen(salt)) {
1.39 paf 120: if(!is_salt_body_char((unsigned char)salt[0])) { // $... {...
1.34 paf 121: const char* cur=salt+1; // skip
1.39 paf 122: while(is_salt_body_char((unsigned char)*cur++)) // ...$ ...}
1.20 paf 123: ;
124: return cur-salt;
125: } else
126: return 0;
127: } else
128: return 0;
129: }
1.34 paf 130: static void _crypt(Request& r, MethodParams& params) {
131: const char* password=params.as_string(0, "password must be string").cstr();
132: const char* maybe_bodyless_salt=params.as_string(1, "salt must be string").cstr();
1.20 paf 133:
134: size_t prefix_size=calc_prefix_size(maybe_bodyless_salt);
1.34 paf 135: const char* normal_salt;
1.20 paf 136: char normalize_buf[MAX_STRING];
137: if(prefix_size==strlen(maybe_bodyless_salt)) { // bodyless?
138: strncpy(normalize_buf, maybe_bodyless_salt, MAX_STRING-MAX_SALT-1);
139: char *cur=normalize_buf+strlen(normalize_buf);
140: // sould add up MAX_SALT random chars
141: static unsigned char itoa64[] = /* 0 ... 63 => ASCII - 64 */
142: "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
143: for(int i=0; i<MAX_SALT; i++)
144: *cur++=itoa64[_random(64)];
145: *cur=0;
146: normal_salt=normalize_buf;
147: } else
148: normal_salt=maybe_bodyless_salt;
1.19 paf 149:
1.54 misha 150: /* FreeBSD style MD5 string
151: */
152: if(strncmp(normal_salt, PA_MD5PW_ID, PA_MD5PW_IDLEN) == 0) {
1.19 paf 153: const size_t sample_size=120;
1.34 paf 154: char *sample_buf=new(PointerFreeGC) char[sample_size];
155: pa_MD5Encode((const unsigned char *)password,
156: (const unsigned char *)normal_salt, sample_buf, sample_size);
157: String sample(sample_buf);
158: r.write_pass_lang(sample);
1.54 misha 159: } else {
1.20 paf 160: #ifdef HAVE_CRYPT
1.34 paf 161: const char* static_sample_buf=crypt(password, normal_salt);
162: if(!static_sample_buf // nothing generated
163: || !static_sample_buf[0] // generated nothing
164: || strncmp(static_sample_buf, normal_salt, prefix_size)!=0) // salt prefix not preserved
1.45 misha 165: throw Exception(PARSER_RUNTIME,
1.34 paf 166: 0,
167: "crypt on this platform does not support '%.*s' salt prefix", prefix_size, normal_salt);
1.20 paf 168:
1.34 paf 169: r.write_pass_lang(String(pa_strdup(static_sample_buf)));
1.20 paf 170: #else
1.45 misha 171: throw Exception(PARSER_RUNTIME,
1.34 paf 172: 0,
1.19 paf 173: "salt must start with '" PA_MD5PW_ID "'");
1.20 paf 174: #endif
175: }
1.19 paf 176: }
177:
1.34 paf 178: static void _md5(Request& r, MethodParams& params) {
1.72 moko 179: 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 180:
181: PA_MD5_CTX context;
182: unsigned char digest[16];
1.34 paf 183: pa_MD5Init(&context);
184: pa_MD5Update(&context, (const unsigned char*)string, strlen(string));
185: pa_MD5Final(digest, &context);
1.27 paf 186:
1.34 paf 187: r.write_pass_lang(*new String(hex_string(digest, sizeof(digest), false)));
1.26 paf 188: }
189:
1.49 misha 190:
191: //SHA-1:
192:
1.50 misha 193: struct SHA1Context {
1.54 misha 194: unsigned Message_Digest[5], Length_Low, Length_High;
195: unsigned int Message_Block[64];
196: int Message_Block_Index, Computed, Corrupted;
1.50 misha 197: };
1.49 misha 198:
199: #define SHA1CircularShift(bits,word) ((((word) << (bits)) & 0xFFFFFFFF)|((word) >> (32-(bits))))
200: void SHA1ProcessMessageBlock(SHA1Context *);
201: void SHA1PadMessage(SHA1Context *);
1.50 misha 202: void SHA1Reset(SHA1Context *context) {
1.54 misha 203: context->Length_Low = context->Length_High = context->Message_Block_Index = 0;
204: context->Message_Digest[0] = 0x67452301;
205: context->Message_Digest[1] = 0xEFCDAB89;
206: context->Message_Digest[2] = 0x98BADCFE;
207: context->Message_Digest[3] = 0x10325476;
208: context->Message_Digest[4] = 0xC3D2E1F0;
209: context->Computed = context->Corrupted = 0;
1.50 misha 210: }
1.49 misha 211:
1.50 misha 212: int SHA1Result(SHA1Context *context) {
1.54 misha 213: if (context->Corrupted)
214: return 0;
215: if (!context->Computed) {
216: SHA1PadMessage(context);
217: context->Computed = 1;
218: }
219: return 1;
220: }
221:
222: void SHA1Input(SHA1Context *context, const unsigned char *message_array, unsigned length) {
223: if (!length)
224: return;
225: if (context->Computed || context->Corrupted) {
226: context->Corrupted = 1;
227: return;
228: }
229:
230: while(length-- && !context->Corrupted) {
231: context->Message_Block[context->Message_Block_Index++] = (*message_array & 0xFF);
232: context->Length_Low += 8;
233: context->Length_Low &= 0xFFFFFFFF;
234: if (!context->Length_Low && !(context->Length_High=((1+context->Length_High)&0xFFFFFFFF)))
235: context->Corrupted = 1; // too long message
236: if (context->Message_Block_Index == 64)
237: SHA1ProcessMessageBlock(context);
238: message_array++;
1.49 misha 239: }
1.50 misha 240: }
1.49 misha 241:
1.50 misha 242: void SHA1ProcessMessageBlock(SHA1Context *context) {
1.54 misha 243: const unsigned K[] = {0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xCA62C1D6 };
244: int t;
245: unsigned temp, W[80], buf[5];
246: unsigned &A=buf[0], &B=buf[1], &C=buf[2], &D=buf[3], &E=buf[4];
1.50 misha 247:
1.54 misha 248: for(t = 0; t < 16; t++)
249: 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 250:
1.54 misha 251: for(t = 16; t < 80; t++)
252: W[t] = SHA1CircularShift(1,W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16]);
1.49 misha 253:
1.54 misha 254: memcpy (buf, context->Message_Digest, sizeof(buf));
255: for(t = 0; t < 20; t++) {
256: temp = (SHA1CircularShift(5,A) + ((B & C) | ((~B) & D)) + E + W[t] + K[0]) & 0xFFFFFFFF;
257: E = D; D = C;
258: C = SHA1CircularShift(30,B);
259: B = A; A = temp;
1.49 misha 260: }
261:
1.54 misha 262: for(t = 20; t < 40; t++) {
263: temp = (SHA1CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[1]) & 0xFFFFFFFF;
264: E = D; D = C;
265: C = SHA1CircularShift(30,B);
266: B = A; A = temp;
1.49 misha 267: }
268:
1.54 misha 269: for(t = 40; t < 60; t++) {
270: temp = (SHA1CircularShift(5,A) + ((B & C) | (B & D) | (C & D)) + E + W[t] + K[2]) & 0xFFFFFFFF;
271: E = D; D = C;
272: C = SHA1CircularShift(30,B);
273: B = A; A = temp;
1.49 misha 274: }
275:
1.54 misha 276: for(t = 60; t < 80; t++) {
277: temp = (SHA1CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[3]) & 0xFFFFFFFF;
278: E = D; D = C;
279: C = SHA1CircularShift(30,B);
280: B = A; A = temp;
1.49 misha 281: }
282:
1.54 misha 283: for (t = 0; t < 5; t++)
284: context->Message_Digest[t] = (context->Message_Digest[t] + buf[t]) & 0xFFFFFFFF;
1.50 misha 285:
1.54 misha 286: context->Message_Block_Index = 0;
1.50 misha 287: }
1.49 misha 288:
1.50 misha 289: void SHA1PadMessage(SHA1Context *context) {
1.54 misha 290: context->Message_Block[context->Message_Block_Index++] = 0x80;
1.50 misha 291: if (context->Message_Block_Index > 56) {
292: //was 55, one shift
1.54 misha 293: while(context->Message_Block_Index < 64)
294: context->Message_Block[context->Message_Block_Index++] = 0;
295: SHA1ProcessMessageBlock(context);
296: while(context->Message_Block_Index < 56)
297: context->Message_Block[context->Message_Block_Index++] = 0;
1.50 misha 298: } else
1.54 misha 299: while(context->Message_Block_Index < 56)
300: context->Message_Block[context->Message_Block_Index++] = 0;
301: context->Message_Block[56] = (context->Length_High >> 24) & 0xFF;
302: context->Message_Block[57] = (context->Length_High >> 16) & 0xFF;
303: context->Message_Block[58] = (context->Length_High >> 8) & 0xFF;
304: context->Message_Block[59] = (context->Length_High) & 0xFF;
305: context->Message_Block[60] = (context->Length_Low >> 24) & 0xFF;
306: context->Message_Block[61] = (context->Length_Low >> 16) & 0xFF;
307: context->Message_Block[62] = (context->Length_Low >> 8) & 0xFF;
308: context->Message_Block[63] = (context->Length_Low) & 0xFF;
309: SHA1ProcessMessageBlock(context);
1.50 misha 310: }
1.49 misha 311:
1.62 moko 312: #ifdef PA_BIG_ENDIAN
313: #define SWAP(n) (n)
314: #else
315: #define SWAP(n) (((n) << 24) | (((n) & 0xff00) << 8) | (((n) >> 8) & 0xff00) | ((n) >> 24))
316: #endif
317:
1.64 moko 318: void SHA1ReadDigest(void *buf, SHA1Context *c)
1.62 moko 319: {
1.64 moko 320: if(!SHA1Result(c))
1.62 moko 321: throw Exception (PARSER_RUNTIME, 0, "Can not compute SHA1");
322:
1.64 moko 323: ((uint32_t *)buf)[0] = SWAP(c->Message_Digest[0]);
324: ((uint32_t *)buf)[1] = SWAP(c->Message_Digest[1]);
325: ((uint32_t *)buf)[2] = SWAP(c->Message_Digest[2]);
326: ((uint32_t *)buf)[3] = SWAP(c->Message_Digest[3]);
327: ((uint32_t *)buf)[4] = SWAP(c->Message_Digest[4]);
1.62 moko 328: }
329:
1.54 misha 330: static void _sha1(Request& r, MethodParams& params) {
1.72 moko 331: 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 332:
1.54 misha 333: SHA1Context c;
1.64 moko 334: unsigned char digest[20];
1.54 misha 335: SHA1Reset (&c);
336: SHA1Input (&c, (const unsigned char*)string, strlen(string));
1.64 moko 337: SHA1ReadDigest(digest, &c);
1.54 misha 338:
1.62 moko 339: r.write_pass_lang(*new String(hex_string(digest, sizeof(digest), false)));
340: }
341:
1.64 moko 342: void memxor(char *dest, const char *src, size_t n){
343: for (;n>0;n--) *dest++ ^= *src++;
344: }
345:
1.62 moko 346: #define IPAD 0x36
347: #define OPAD 0x5c
348:
1.65 moko 349: #define HMAC(key,init,update,final,blocklen,digestlen){ \
1.64 moko 350: unsigned char tempdigest[digestlen], keydigest[digestlen]; \
351: size_t keylen=strlen(key); \
1.65 moko 352: /* Reduce the key's size, so that it becomes <= blocklen bytes. */ \
353: if (keylen > blocklen){ \
1.64 moko 354: init(&c); \
355: update(&c,(const unsigned char*)hmac, keylen); \
356: final(keydigest, &c); \
357: key = (char *)keydigest; \
358: keylen = digestlen; \
359: } \
360: /* Compute TEMP from KEY and STRING. */ \
1.65 moko 361: char block[blocklen]; \
362: memset (block, IPAD, blocklen); \
1.64 moko 363: memxor (block, key, keylen); \
364: init(&c); \
1.65 moko 365: update(&c, (const unsigned char*)block, blocklen); \
1.69 moko 366: update(&c, (const unsigned char*)data.str, data.length); \
1.64 moko 367: final(tempdigest, &c); \
368: /* Compute result from KEY and TEMP. */ \
1.65 moko 369: memset (block, OPAD, blocklen); \
1.64 moko 370: memxor (block, key, keylen); \
371: init(&c); \
1.65 moko 372: update(&c, (const unsigned char*)block, blocklen); \
1.64 moko 373: update(&c, (const unsigned char*)tempdigest, digestlen); \
1.62 moko 374: }
1.55 misha 375:
1.62 moko 376: static void _digest(Request& r, MethodParams& params) {
1.63 moko 377: const String &smethod = params.as_string(0, PARAMETER_MUST_BE_STRING);
1.69 moko 378:
379: Value& vdata=params.as_no_junction(1, "parameter must be string or file");
380:
381: String::C data;
382: if(const String* sdata=vdata.get_string()){
1.72 moko 383: 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 384: data=String::C(body.cstr(), body.length());
385: } else {
386: VFile *file=vdata.as_vfile(String::L_AS_IS);
387: data=String::C(file->value_ptr(),file->value_size());
388: }
1.62 moko 389:
1.65 moko 390: enum Method { M_MD5, M_SHA1, M_SHA256, M_SHA512 } method;
1.62 moko 391:
1.63 moko 392: if (smethod == "md5") method = M_MD5;
393: else if (smethod == "sha1" ) method = M_SHA1;
1.65 moko 394: else if (smethod == "sha256" ) method = M_SHA256;
395: else if (smethod == "sha512" ) method = M_SHA512;
1.63 moko 396: else throw Exception(PARSER_RUNTIME, &smethod, "must be 'md5' or 'sha1'");
1.62 moko 397:
398: const char *hmac=0;
1.63 moko 399: enum Format { F_HEX, F_BASE64 } format = F_HEX;
1.62 moko 400:
401: if(params.count() == 3)
402: if(HashStringValue* options=params.as_hash(2)) {
403: int valid_options=0;
404: if(Value* value=options->get("hmac")) {
405: hmac=value->as_string().cstr();
406: valid_options++;
407: }
1.63 moko 408: if(Value* value=options->get("format")) {
409: const String& sformat=value->as_string();
410: if (sformat == "hex") format = F_HEX;
411: else if (sformat == "base64" ) format = F_BASE64;
412: else throw Exception(PARSER_RUNTIME, &sformat, "must be 'hex' or 'base64'");
1.62 moko 413: valid_options++;
414: }
415: if(valid_options!=options->count())
416: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
417: }
418:
419: String::C digest;
420:
1.63 moko 421: if(method == M_MD5){
1.64 moko 422: PA_MD5_CTX c;
423: if(hmac){
1.65 moko 424: HMAC(hmac, pa_MD5Init, pa_MD5Update, pa_MD5Final, 64, 16);
1.64 moko 425: } else {
426: pa_MD5Init(&c);
1.69 moko 427: pa_MD5Update(&c, (const unsigned char*)data.str, data.length);
1.64 moko 428: }
1.62 moko 429: char *str=(char *)pa_malloc(16);
1.64 moko 430: pa_MD5Final((unsigned char *)str, &c);
1.62 moko 431: digest = String::C(str, 16);
432: }
433:
1.63 moko 434: if(method == M_SHA1){
1.62 moko 435: SHA1Context c;
436: if(hmac){
1.65 moko 437: HMAC(hmac, SHA1Reset, SHA1Input, SHA1ReadDigest, 64, 20);
1.62 moko 438: } else {
1.64 moko 439: SHA1Reset(&c);
1.69 moko 440: SHA1Input(&c, (const unsigned char*)data.str, data.length);
1.62 moko 441: }
442: char *str=(char *)pa_malloc(20);
1.64 moko 443: SHA1ReadDigest(str, &c);
1.62 moko 444: digest = String::C(str, 20);
445: }
1.49 misha 446:
1.65 moko 447: if(method == M_SHA256){
448: SHA256_CTX c;
449: if(hmac){
450: HMAC(hmac, pa_SHA256_Init, pa_SHA256_Update, pa_SHA256_Final, 64, SHA256_DIGEST_LENGTH);
451: } else {
452: pa_SHA256_Init(&c);
1.69 moko 453: pa_SHA256_Update(&c, (const unsigned char*)data.str, data.length);
1.65 moko 454: }
455: char *str=(char *)pa_malloc(SHA256_DIGEST_LENGTH);
456: pa_SHA256_Final((unsigned char *)str, &c);
457: digest = String::C(str, SHA256_DIGEST_LENGTH);
458: }
459:
460: if(method == M_SHA512){
461: SHA512_CTX c;
462: if(hmac){
463: HMAC(hmac, pa_SHA512_Init, pa_SHA512_Update, pa_SHA512_Final, 128, SHA512_DIGEST_LENGTH);
464: } else {
465: pa_SHA512_Init(&c);
1.69 moko 466: pa_SHA512_Update(&c, (const unsigned char*)data.str, data.length);
1.65 moko 467: }
468: char *str=(char *)pa_malloc(SHA512_DIGEST_LENGTH);
469: pa_SHA512_Final((unsigned char *)str, &c);
470: digest = String::C(str, SHA512_DIGEST_LENGTH);
471: }
472:
1.63 moko 473: if(format == F_HEX){
1.62 moko 474: r.write_pass_lang(*new String(hex_string((unsigned char *)digest.str, digest.length, false)));
475: }
1.63 moko 476: if(format == F_BASE64){
1.62 moko 477: r.write_pass_lang(*new String(pa_base64_encode(digest.str, digest.length)));
478: }
1.54 misha 479: }
1.49 misha 480:
1.55 misha 481: static void _uuid(Request& r, MethodParams& /*params*/) {
482: uuid uuid=get_uuid();
1.49 misha 483:
1.55 misha 484: const size_t bufsize=36+1/*zero-teminator*/+1/*for faulty snprintfs*/;
485: char* cstr=new(PointerFreeGC) char[bufsize];
1.28 paf 486:
1.55 misha 487: snprintf(cstr, bufsize,
488: "%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X",
489: uuid.time_low, uuid.time_mid, uuid.time_hi_and_version,
490: uuid.clock_seq >> 8, uuid.clock_seq & 0xFF,
491: uuid.node[0], uuid.node[1], uuid.node[2],
492: uuid.node[3], uuid.node[4], uuid.node[5]);
1.28 paf 493:
1.55 misha 494: r.write_pass_lang(*new String(cstr));
1.28 paf 495: }
496:
1.34 paf 497: static void _uid64(Request& r, MethodParams& /*params*/) {
1.30 paf 498:
499: unsigned char id[64/8];
500: random(&id, sizeof(id));
501:
1.34 paf 502: r.write_pass_lang(*new String(hex_string(id, sizeof(id), true)));
1.30 paf 503: }
504:
1.43 misha 505: static void _crc32(Request& r, MethodParams& params) {
1.51 misha 506: const char *string=params.as_string(0, PARAMETER_MUST_BE_STRING).cstr();
1.43 misha 507: r.write_no_lang(*new VInt(pa_crc32(string, strlen(string))));
508: }
509:
1.61 moko 510: static void toBase(unsigned int value, unsigned int base, char*& ptr){
1.57 misha 511: static const char* hex="0123456789ABCDEF";
512: int rest = value % base;
1.58 misha 513: if(value >= base)
1.57 misha 514: toBase( (value-rest)/base, base, ptr);
515: *ptr++=(char)hex[rest];
516: }
517:
518: static void _convert(Request& r, MethodParams& params) {
1.60 moko 519: const char *str=params.as_string(0, PARAMETER_MUST_BE_STRING).cstr();
520:
1.57 misha 521: int base_from=params.as_int(1, "base from must be integer", r);
522: if(base_from < 2 || base_from > 16)
523: throw Exception(PARSER_RUNTIME, 0, "base from must be an integer from 2 to 16");
524:
1.60 moko 525: int base_to=params.as_int(2, "base to must be integer", r);
526: if(base_to < 2 || base_to > 16)
527: throw Exception(PARSER_RUNTIME, 0, "base to must be an integer from 2 to 16");
528:
1.61 moko 529: while(isspace(*str))
1.60 moko 530: str++;
531:
532: if(!*str)
533: return;
534:
535: bool negative=false;
536: if(str[0]=='-') {
537: negative=true;
538: str++;
539: } else if(str[0]=='+') {
540: str++;
541: }
542:
1.61 moko 543: unsigned int value=pa_atoui(str, base_from);
1.57 misha 544:
1.61 moko 545: char result_cstr[sizeof(unsigned int)*8+1/*minus for negative number*/+1/*terminator*/];
1.60 moko 546: char* ptr=result_cstr;
547: if(negative)
548: *ptr++='-';
1.57 misha 549:
550: toBase(value, base_to, ptr);
551: *ptr=0;
552: r.write_pass_lang(*new String(pa_strdup(result_cstr)));
553: }
554:
1.1 parser 555: // constructor
556:
1.34 paf 557: MMath::MMath(): Methoded("math") {
1.1 parser 558: // ^FUNC(expr)
1.28 paf 559: #define ADDX(name, X) \
560: add_native_method(#name, Method::CT_STATIC, _##name, X, X)
561: #define ADD0(name) ADDX(name, 0)
562: #define ADD1(name) ADDX(name, 1)
563: #define ADD2(name) ADDX(name, 2)
1.1 parser 564:
565: ADD1(round); ADD1(floor); ADD1(ceiling);
1.3 parser 566: ADD1(trunc); ADD1(frac);
1.1 parser 567: ADD1(abs); ADD1(sign);
1.46 misha 568: ADD1(exp);
1.48 misha 569: ADD1(log); ADD1(log10);
1.1 parser 570: ADD1(sin); ADD1(asin);
571: ADD1(cos); ADD1(acos);
572: ADD1(tan); ADD1(atan);
1.3 parser 573: ADD1(degrees); ADD1(radians);
1.1 parser 574: ADD1(sqrt);
1.3 parser 575: ADD1(random);
1.1 parser 576:
1.49 misha 577: // ^math:pow(x;y)
1.1 parser 578: ADD2(pow);
579:
1.49 misha 580: // ^math:crypt[password;salt]
1.19 paf 581: ADD2(crypt);
1.26 paf 582:
1.49 misha 583: // ^math:md5[string]
1.26 paf 584: ADD1(md5);
1.5 parser 585:
1.49 misha 586: // ^math:sha1[string]
587: ADD1(sha1);
588:
1.71 moko 589: // ^math:digest[method;string|file;options]
1.62 moko 590: add_native_method("digest", Method::CT_STATIC, _digest, 2, 3);
591:
1.49 misha 592: // ^math:crc32[string]
1.43 misha 593: ADD1(crc32);
594:
1.49 misha 595: // ^math:uuid[]
1.29 paf 596: ADD0(uuid);
597:
1.49 misha 598: // ^math:uid64[]
1.30 paf 599: ADD0(uid64);
1.57 misha 600:
601: // ^math:convert[number](base-from;base-to)
602: add_native_method("convert", Method::CT_STATIC, _convert, 3, 3);
1.1 parser 603: }
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