--- parser3/src/classes/math.C 2001/10/19 12:43:29 1.7 +++ parser3/src/classes/math.C 2026/04/25 13:38:46 1.112 @@ -1,174 +1,824 @@ /** @file Parser: @b math parser class. - Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) - Author: Alexander Petrosyan (http://design.ru/paf) + Copyright (c) 2001-2026 Art. Lebedev Studio (https://www.artlebedev.com) + Authors: Konstantin Morshnev , Alexandr Petrosian - $Id: math.C,v 1.7 2001/10/19 12:43:29 parser Exp $ + portions from gen_uuid.c, + Copyright (C) 1996, 1997, 1998, 1999 Theodore Ts'o. */ -#include "pa_config_includes.h" +#include "pa_vmethod_frame.h" #include "pa_common.h" +#include "pa_base64.h" #include "pa_vint.h" #include "pa_vmath.h" +#include "pa_vfile.h" #include "pa_request.h" +#include "pa_md5.h" +#include "pa_sha2.h" +#include "pa_random.h" -#ifdef WIN32 -# include +#ifdef HAVE_CRYPT +extern "C" char *crypt(const char* , const char* ); #endif +volatile const char * IDENT_MATH_C="$Id: math.C,v 1.112 2026/04/25 13:38:46 moko Exp $"; + // defines -#define PI 3.1415926535 -#define MATH_CLASS_NAME "math" +#define MAX_SALT 8 // class -class MMath : public Methoded { -public: - MMath(Pool& pool); - void configure_admin(Request& r); - +class MMath: public Methoded { public: // Methoded - bool used_directly() { return true; } + bool used_directly() { return false; } + +public: + MMath(); }; +// global variables + +DECLARE_CLASS_VAR(math, new MMath); + // methods -static unsigned int randomizer=0; -static void _random(Request& r, const String& method_name, MethodParams *params) { - Pool& pool=r.pool(); - - Value& range=params->as_junction(0, "range must be expression"); - uint max=(uint)r.process(range).as_double(); - if(max<=1) - throw Exception(0, 0, - &method_name, - "bad range [0..%u]", max); - - Value& result=*new(pool) VInt(pool, (int)( - ((double)((randomizer=rand())% RAND_MAX)) / RAND_MAX * (max + 1))); - result.set_name(method_name); - r.write_no_lang(result); + +static void _random(Request& r, MethodParams& params) { + double top=params.as_double(0, "range must be expression", r); + if(top<1 || top>INT_MAX) + throw Exception(PARSER_RUNTIME, 0, "top(%.15g) must be [1..%u]", top, INT_MAX); + r.write(*new VInt(_random(uint(top)))); } -typedef double (*math1_func_ptr)(double); -static double round(double param) { return floor(param+0.5); } -static double sign(double param) { return param > 0 ? 1 : ( param < 0 ? -1 : 0 ); } -static double trunc(double param) { return param > 0? floor(param) : ceil(param); } +typedef double(*math1_func_ptr)(double); static double frac(double param) { return param-trunc(param); } static double degrees(double param) { return param /PI *180; } static double radians(double param) { return param /180 *PI; } -static void math1(Request& r, - const String& method_name, MethodParams *params, - math1_func_ptr func) { - Pool& pool=r.pool(); - Value& param=params->as_junction(0, "parameter must be expression"); - - Value& result=*new(pool) VDouble(pool, (*func)(r.process(param).as_double())); - result.set_name(method_name); - r.write_no_lang(result); +static void math1(Request& r, MethodParams& params, math1_func_ptr func) { + double param=params.as_double(0, "parameter must be expression", r); + double result=func(param); + r.write(*new VDouble(result)); } #define MATH1(name) \ - static void _##name(Request& r, const String& method_name, MethodParams *params) {\ - math1(r, method_name, params, &name);\ + static void _##name(Request& r, MethodParams& params) {\ + math1(r, params, &name);\ } + #define MATH1P(name_parser, name_c) \ - static void _##name_parser(Request& r, const String& method_name, MethodParams *params) {\ - math1(r, method_name, params, &name_c);\ + static void _##name_parser(Request& r, MethodParams& params) {\ + math1(r, params, &name_c);\ } -MATH1(round); MATH1(floor); MATH1P(ceiling, ceil); -MATH1(trunc); MATH1(frac); -MATH1P(abs, fabs); MATH1(sign); -MATH1(exp); MATH1(log); -MATH1(sin); MATH1(asin); -MATH1(cos); MATH1(acos); -MATH1(tan); MATH1(atan); -MATH1(degrees); MATH1(radians); -MATH1(sqrt); + +MATH1(round) +MATH1(floor) +MATH1P(ceiling, ceil) +MATH1(trunc) +MATH1(frac) +MATH1P(abs, fabs) +MATH1(sign) +MATH1(exp) +MATH1(log) +MATH1(log10) +MATH1(sin) +MATH1(asin) +MATH1(cos) +MATH1(acos) +MATH1(tan) +MATH1(atan) +MATH1(degrees) +MATH1(radians) +MATH1(sqrt) typedef double (*math2_func_ptr)(double, double); -static void math2(Request& r, - const String& method_name, MethodParams *params, - math2_func_ptr func) { - Pool& pool=r.pool(); - Value& a=params->as_junction(0, "parameter must be expression"); - Value& b=params->as_junction(1, "parameter must be expression"); - - Value& result=*new(pool) VDouble(pool, (*func)( - r.process(a).as_double(), - r.process(b).as_double())); - result.set_name(method_name); - r.write_no_lang(result); +static void math2(Request& r, MethodParams& params, math2_func_ptr func) { + double a=params.as_double(0, "parameter must be expression", r); + double b=params.as_double(1, "parameter must be expression", r); + double result=func(a, b); + r.write(*new VDouble(result)); } #define MATH2(name) \ - static void _##name(Request& r, const String& method_name, MethodParams *params) {\ - math2(r, method_name, params, &name);\ + static void _##name(Request& r, MethodParams& params) {\ + math2(r, params, &name);\ } -MATH2(pow); -// constructor +MATH2(pow) +MATH2(atan2) + +static inline uint64_t ulp_key_double(double x) { + union { double d; uint64_t u; } v; v.d = x; + return (v.u & (1ull << 63)) ? (~v.u + 1ull) : (v.u | (1ull << 63)); +} + +static inline uint64_t ulp_distance_double(double a, double b) { + if (a == b) return 0; + uint64_t ka = ulp_key_double(a); + uint64_t kb = ulp_key_double(b); + return (ka > kb) ? (ka - kb) : (kb - ka); +} + +static void _eq(Request& r, MethodParams& params) { + double a=params.as_double(0, "parameter must be expression", r); + double b=params.as_double(1, "parameter must be expression", r); + uint64_t max_ulp=3; + if(params.count() == 3) + max_ulp=params.as_int(2, "max distance must be integer", r); + r.write(VBool::get(ulp_distance_double(a,b)<=max_ulp)); +} + +inline bool is_salt_body_char(unsigned char c) { + return pa_isalnum(c) || c == '.' || c=='/'; +} + +static size_t calc_prefix_size(const char* salt) { + if(strlen(salt)) { + if(!is_salt_body_char((unsigned char)salt[0])) { // $... {... + const char* cur=salt+1; // skip + while(is_salt_body_char((unsigned char)*cur++)) // ...$ ...} + ; + return cur-salt; + } else + return 0; + } else + return 0; +} +static void _crypt(Request& r, MethodParams& params) { + const char* password=params.as_string(0, "password must be string").cstr(); + const char* maybe_bodyless_salt=params.as_string(1, "salt must be string").cstr(); + + size_t prefix_size=calc_prefix_size(maybe_bodyless_salt); + const char* normal_salt; + char normalize_buf[MAX_STRING]; + if(prefix_size==strlen(maybe_bodyless_salt)) { // bodyless? + pa_strncpy(normalize_buf, maybe_bodyless_salt, MAX_STRING-MAX_SALT); + char *cur=normalize_buf+strlen(normalize_buf); + // sould add up MAX_SALT random chars + static unsigned char itoa64[] = /* 0 ... 63 => ASCII - 64 */ + "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; + for(int i=0; i> (32-(bits)))) +void SHA1ProcessMessageBlock(SHA1Context *); +void SHA1PadMessage(SHA1Context *); +void SHA1Reset(SHA1Context *context) { + context->Length_Low = context->Length_High = context->Message_Block_Index = 0; + context->Message_Digest[0] = 0x67452301; + context->Message_Digest[1] = 0xEFCDAB89; + context->Message_Digest[2] = 0x98BADCFE; + context->Message_Digest[3] = 0x10325476; + context->Message_Digest[4] = 0xC3D2E1F0; + context->Computed = context->Corrupted = 0; +} + +int SHA1Result(SHA1Context *context) { + if (context->Corrupted) + return 0; + if (!context->Computed) { + SHA1PadMessage(context); + context->Computed = 1; + } + return 1; +} + +void SHA1Input(SHA1Context *context, const unsigned char *message_array, unsigned length) { + if (!length) + return; + if (context->Computed || context->Corrupted) { + context->Corrupted = 1; + return; + } + + while(length-- && !context->Corrupted) { + context->Message_Block[context->Message_Block_Index++] = (*message_array & 0xFF); + context->Length_Low += 8; + context->Length_Low &= 0xFFFFFFFF; + if (!context->Length_Low && !(context->Length_High=((1+context->Length_High)&0xFFFFFFFF))) + context->Corrupted = 1; // too long message + if (context->Message_Block_Index == 64) + SHA1ProcessMessageBlock(context); + message_array++; + } +} + +void SHA1ProcessMessageBlock(SHA1Context *context) { + const unsigned K[] = {0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xCA62C1D6 }; + int t; + unsigned temp, W[80], buf[5]; + unsigned &A=buf[0], &B=buf[1], &C=buf[2], &D=buf[3], &E=buf[4]; + + for(t = 0; t < 16; t++) + 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]); + + for(t = 16; t < 80; t++) + W[t] = SHA1CircularShift(1,W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16]); + + memcpy (buf, context->Message_Digest, sizeof(buf)); + for(t = 0; t < 20; t++) { + temp = (SHA1CircularShift(5,A) + ((B & C) | ((~B) & D)) + E + W[t] + K[0]) & 0xFFFFFFFF; + E = D; D = C; + C = SHA1CircularShift(30,B); + B = A; A = temp; + } + + for(t = 20; t < 40; t++) { + temp = (SHA1CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[1]) & 0xFFFFFFFF; + E = D; D = C; + C = SHA1CircularShift(30,B); + B = A; A = temp; + } + + for(t = 40; t < 60; t++) { + temp = (SHA1CircularShift(5,A) + ((B & C) | (B & D) | (C & D)) + E + W[t] + K[2]) & 0xFFFFFFFF; + E = D; D = C; + C = SHA1CircularShift(30,B); + B = A; A = temp; + } + + for(t = 60; t < 80; t++) { + temp = (SHA1CircularShift(5,A) + (B ^ C ^ D) + E + W[t] + K[3]) & 0xFFFFFFFF; + E = D; D = C; + C = SHA1CircularShift(30,B); + B = A; A = temp; + } + + for (t = 0; t < 5; t++) + context->Message_Digest[t] = (context->Message_Digest[t] + buf[t]) & 0xFFFFFFFF; + + context->Message_Block_Index = 0; +} + +void SHA1PadMessage(SHA1Context *context) { + context->Message_Block[context->Message_Block_Index++] = 0x80; + if (context->Message_Block_Index > 56) { + //was 55, one shift + while(context->Message_Block_Index < 64) + context->Message_Block[context->Message_Block_Index++] = 0; + SHA1ProcessMessageBlock(context); + while(context->Message_Block_Index < 56) + context->Message_Block[context->Message_Block_Index++] = 0; + } else + while(context->Message_Block_Index < 56) + context->Message_Block[context->Message_Block_Index++] = 0; + context->Message_Block[56] = (context->Length_High >> 24) & 0xFF; + context->Message_Block[57] = (context->Length_High >> 16) & 0xFF; + context->Message_Block[58] = (context->Length_High >> 8) & 0xFF; + context->Message_Block[59] = (context->Length_High) & 0xFF; + context->Message_Block[60] = (context->Length_Low >> 24) & 0xFF; + context->Message_Block[61] = (context->Length_Low >> 16) & 0xFF; + context->Message_Block[62] = (context->Length_Low >> 8) & 0xFF; + context->Message_Block[63] = (context->Length_Low) & 0xFF; + SHA1ProcessMessageBlock(context); +} + +#ifdef PA_BIG_ENDIAN +#define SWAP(n) (n) +#else +#define SWAP(n) (((n) << 24) | (((n) & 0xff00) << 8) | (((n) >> 8) & 0xff00) | ((n) >> 24)) +#endif + +void SHA1ReadDigest(void *buf, SHA1Context *c) +{ + if(!SHA1Result(c)) + throw Exception (PARSER_RUNTIME, 0, "Cannot compute SHA1"); + + ((uint32_t *)buf)[0] = SWAP(c->Message_Digest[0]); + ((uint32_t *)buf)[1] = SWAP(c->Message_Digest[1]); + ((uint32_t *)buf)[2] = SWAP(c->Message_Digest[2]); + ((uint32_t *)buf)[3] = SWAP(c->Message_Digest[3]); + ((uint32_t *)buf)[4] = SWAP(c->Message_Digest[4]); +} + +static void _sha1(Request& r, MethodParams& params) { + 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(); + + SHA1Context c; + unsigned char digest[20]; + SHA1Reset (&c); + SHA1Input (&c, (const unsigned char*)string, strlen(string)); + SHA1ReadDigest(digest, &c); + + r.write(*new String(hex_string(digest, sizeof(digest), false))); +} + +String::C getData(Value& vdata, Request& r){ + if(const String* sdata=vdata.get_string()){ + String::Body body=sdata->cstr_to_string_body_untaint(String::L_AS_IS, r.connection(false), &r.charsets); // explode content, honor tainting changes + return String::C(body.cstr(), body.length()); + } else { + VFile *file=vdata.as_vfile(); + return String::C(file->value_ptr(),file->value_size()); + } +} -MMath::MMath(Pool& apool) : Methoded(apool) { - set_name(*NEW String(pool(), MATH_CLASS_NAME)); +void memxor(char *dest, const char *src, size_t n){ + for (;n>0;n--) *dest++ ^= *src++; +} + +#define IPAD 0x36 +#define OPAD 0x5c + +#define HMAC(key,keylen,init,update,final,blocklen,digestlen){ \ + unsigned char tempdigest[digestlen], keydigest[digestlen]; \ + /* Reduce the key's size, so that it becomes <= blocklen bytes. */ \ + if (keylen > blocklen){ \ + init(&c); \ + update(&c,(const unsigned char*)key, keylen); \ + final(keydigest, &c); \ + key = (char *)keydigest; \ + keylen = digestlen; \ + } \ + /* Compute TEMP from KEY and STRING. */ \ + char block[blocklen]; \ + memset (block, IPAD, blocklen); \ + memxor (block, key, keylen); \ + init(&c); \ + update(&c, (const unsigned char*)block, blocklen); \ + update(&c, (const unsigned char*)data.str, data.length); \ + final(tempdigest, &c); \ + /* Compute result from KEY and TEMP. */ \ + memset (block, OPAD, blocklen); \ + memxor (block, key, keylen); \ + init(&c); \ + update(&c, (const unsigned char*)block, blocklen); \ + update(&c, (const unsigned char*)tempdigest, digestlen); \ +} + +static void _digest(Request& r, MethodParams& params) { + const String &smethod = params.as_string(0, PARAMETER_MUST_BE_STRING); + + String::C data=getData(params.as_no_junction(1, "parameter must be string or file"), r); + + enum Method { M_MD5, M_SHA1, M_SHA256, M_SHA512 } method; + + if (smethod == "md5") method = M_MD5; + else if (smethod == "sha1" ) method = M_SHA1; + else if (smethod == "sha256" ) method = M_SHA256; + else if (smethod == "sha512" ) method = M_SHA512; + else throw Exception(PARSER_RUNTIME, &smethod, "must be 'md5' or 'sha1' or 'sha256' or 'sha512'"); + + const char *hmac=0; + size_t hmac_len=0; + + enum Format { F_HEX, F_BASE64, F_FILE } format = F_HEX; + + if(params.count() == 3) + if(HashStringValue* options=params.as_hash(2)) { + int valid_options=0; + if(Value* value=options->get("hmac")) { + if(VFile* vfile=dynamic_cast(value)){ + hmac=(const char* )vfile->value_ptr(); + hmac_len=vfile->value_size(); + } else { + hmac=value->as_string().cstr(); + hmac_len=strlen(hmac); + } + valid_options++; + } + if(Value* value=options->get("format")) { + const String& sformat=value->as_string(); + if (sformat == "hex") format = F_HEX; + else if (sformat == "base64" ) format = F_BASE64; + else if (sformat == "file" ) format = F_FILE; + else throw Exception(PARSER_RUNTIME, &sformat, "must be 'hex' or 'base64'"); + valid_options++; + } + if(valid_options!=options->count()) + throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); + } + + String::C digest; + + if(method == M_MD5){ + PA_MD5_CTX c; + if(hmac){ + HMAC(hmac, hmac_len, pa_MD5Init, pa_MD5Update, pa_MD5Final, 64, 16); + } else { + pa_MD5Init(&c); + pa_MD5Update(&c, (const unsigned char*)data.str, data.length); + } + char *str=(char *)pa_malloc(16); + pa_MD5Final((unsigned char *)str, &c); + digest = String::C(str, 16); + } + + if(method == M_SHA1){ + SHA1Context c; + if(hmac){ + HMAC(hmac, hmac_len, SHA1Reset, SHA1Input, SHA1ReadDigest, 64, 20); + } else { + SHA1Reset(&c); + SHA1Input(&c, (const unsigned char*)data.str, data.length); + } + char *str=(char *)pa_malloc(20); + SHA1ReadDigest(str, &c); + digest = String::C(str, 20); + } + + if(method == M_SHA256){ + SHA256_CTX c; + if(hmac){ + HMAC(hmac, hmac_len, pa_SHA256_Init, pa_SHA256_Update, pa_SHA256_Final, 64, SHA256_DIGEST_LENGTH); + } else { + pa_SHA256_Init(&c); + pa_SHA256_Update(&c, (const unsigned char*)data.str, data.length); + } + char *str=(char *)pa_malloc(SHA256_DIGEST_LENGTH); + pa_SHA256_Final((unsigned char *)str, &c); + digest = String::C(str, SHA256_DIGEST_LENGTH); + } + + if(method == M_SHA512){ + SHA512_CTX c; + if(hmac){ + HMAC(hmac, hmac_len, pa_SHA512_Init, pa_SHA512_Update, pa_SHA512_Final, 128, SHA512_DIGEST_LENGTH); + } else { + pa_SHA512_Init(&c); + pa_SHA512_Update(&c, (const unsigned char*)data.str, data.length); + } + char *str=(char *)pa_malloc(SHA512_DIGEST_LENGTH); + pa_SHA512_Final((unsigned char *)str, &c); + digest = String::C(str, SHA512_DIGEST_LENGTH); + } + + if(format == F_HEX){ + r.write(*new String(hex_string((unsigned char *)digest.str, digest.length, false))); + } + if(format == F_BASE64){ + r.write(*new String(pa_base64_encode(digest.str, digest.length, Base64Options(false /*no wrap*/)))); + } + if(format == F_FILE){ + VFile& result=*new VFile; + result.set_binary(true, digest.str, digest.length); + r.write(result); + } +} + +static void _uuid(Request& r, MethodParams& params) { + bool lower=false; + bool solid=false; + + if (params.count() == 1) + if (HashStringValue* options = params.as_hash(0)) { + int valid_options = 0; + if (Value* vlower = options->get("lower")) { + lower = r.process(*vlower).as_bool(); + valid_options++; + } + if (Value* vsolid = options->get("solid")) { + solid = r.process(*vsolid).as_bool(); + valid_options++; + } + if (valid_options != options->count()) + throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); + } + r.write(*new String(get_uuid_cstr(lower, solid))); +} + +static void _uuid7(Request& r, MethodParams& params) { + bool lower=false; + bool solid=false; + + if (params.count() == 1) + if (HashStringValue* options = params.as_hash(0)) { + int valid_options = 0; + if (Value* vlower = options->get("lower")) { + lower = r.process(*vlower).as_bool(); + valid_options++; + } + if (Value* vsolid = options->get("solid")) { + solid = r.process(*vsolid).as_bool(); + valid_options++; + } + if (valid_options != options->count()) + throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); + } + + r.write(*new String(get_uuid7_cstr(lower, solid))); +} + +static void _uid64(Request& r, MethodParams& params) { + bool lower = false; + + if (params.count() == 1) + if (HashStringValue* options = params.as_hash(0)) { + int valid_options = 0; + if (Value* vlower = options->get("lower")) { + lower = r.process(*vlower).as_bool(); + valid_options++; + } + if (valid_options != options->count()) + throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); + } + + unsigned char id[64/8]; + random(&id, sizeof(id)); + + r.write(*new String(hex_string(id, sizeof(id), !lower))); +} + +static void _crc32(Request& r, MethodParams& params) { + const char *string=params.as_string(0, PARAMETER_MUST_BE_STRING).cstr(); + r.write(*new VDouble((uint)pa_crc32(string, strlen(string)))); +} + +static const char* abc_hex = "0123456789ABCDEF"; + +static unsigned char hex_lookup[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, + 0,10,11,12,13,14,15, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0,10,11,12,13,14,15, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +static unsigned char abc_lookup[256] = {}; +static unsigned char abc_256_lookup[256] = {}; + +inline unsigned char *init_abc_256() { + if(!abc_256_lookup[255]) + for(int i=0; i<256; i++) abc_256_lookup[i] = (unsigned char)i; + return abc_256_lookup; +} + +static void _convert(Request& r, MethodParams& params) { + String::C data=getData(params.as_no_junction(0, "parameter must be string or file"), r); + + bool abc_mode = true; + unsigned char *lookup; + const char *abc_from; + int base_from; + + if(params[1].is_string()) { + abc_from = params[1].get_string()->cstr(); + base_from = strlen(abc_from); + if(base_from < 2) + throw Exception(PARSER_RUNTIME, 0, "alphabet 'from' must contain at least 2 characters"); + lookup = abc_lookup; + memset(abc_lookup,0,sizeof(abc_lookup)); + for(int i=0; i 16 && base_from != 256) + throw Exception(PARSER_RUNTIME, 0, "base 'from' must be an integer from 2 to 16 or 256"); + if (base_from == 256) { + abc_from = ""; + lookup = init_abc_256(); + } else { + abc_mode = false; + abc_from = abc_hex; + lookup = hex_lookup; + } + } + + const char *abc_to; + int base_to; + + if(params[2].is_string()) { + abc_to=params[2].get_string()->cstr(); + base_to=strlen(abc_to); + if(base_to < 2) + throw Exception(PARSER_RUNTIME, 0, "alphabet 'to' must contain at least 2 characters"); + } else { + base_to=params.as_int(2, "base 'to' must be integer or string", r); + if(base_to < 2 || base_to > 16 && base_to != 256) + throw Exception(PARSER_RUNTIME, 0, "base 'to' must be an integer from 2 to 16 or 256"); + if (base_to == 256) { + abc_to = (char *)init_abc_256(); + } else { + abc_to = abc_hex; + } + } + + VFile* result_file = 0; + + if(params.count() == 4) + if(HashStringValue* options=params.as_hash(3)) { + int valid_options=0; + if(Value* value=options->get("format")) { + const String& sformat=value->as_string(); + if (sformat == "file" ) result_file = new VFile; + else if (sformat != "string") throw Exception(PARSER_RUNTIME, &sformat, "must be 'string' or 'file'"); + valid_options++; + } + if(valid_options!=options->count()) + throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); + } + + bool negative=false; + + // converting digits to their numeric values + + unsigned char *src=(unsigned char *)pa_strdup(data.str, data.length); + const unsigned char *src_end = src + data.length; + + unsigned char *c; + + if(abc_mode){ + + for(c=src;c=base_from) { + for(unsigned char *s=c;s remainders((size_t)round(data.length * log((double)base_from) / log((double)base_to)) + 1); + + do { + int carry = 0; + unsigned char *dst = src; + for (c=src; c= base_to) { + *(dst++) = (unsigned char)(carry / base_to); + carry %= base_to; + } else if (dst > src) { + *(dst++) = 0; + } + } + src_end = dst; + remainders += abc_to[carry]; + } while (src_end > src); + + // result processing + + size_t result_length = negative + remainders.count(); + char *result_str = (char *)pa_malloc_atomic(result_length+1); + if(negative) + result_str[0] = '-'; + for(size_t i=0; iset(true /*tainted*/, 0 /*binary*/, result_str, result_length, 0, 0, &r); + r.write(*result_file); + } else { + if(memchr(result_str, 0, result_length)) + throw Exception(PARSER_RUNTIME, 0, "Invalid \\x00 character found while converting to string. Convert to file instead."); + + fix_line_breaks(result_str, result_length); + + if(result_length) + r.write(*new String(result_str, String::L_TAINTED)); + } +} + +// constructor + +MMath::MMath(): Methoded("math") { // ^FUNC(expr) -#define ADD1(name) \ - add_native_method(#name, Method::CT_STATIC, _##name, 1, 1) +#define ADDN(name, N) \ + add_native_method(#name, Method::CT_STATIC, _##name, N, N) +#define ADD1(name) ADDN(name, 1) ADD1(round); ADD1(floor); ADD1(ceiling); ADD1(trunc); ADD1(frac); ADD1(abs); ADD1(sign); - ADD1(exp); ADD1(log); - ADD1(sin); ADD1(asin); - ADD1(cos); ADD1(acos); - ADD1(tan); ADD1(atan); + ADD1(exp); + ADD1(log); ADD1(log10); + ADD1(sin); ADD1(asin); + ADD1(cos); ADD1(acos); + ADD1(tan); ADD1(atan); ADDN(atan2, 2); ADD1(degrees); ADD1(radians); ADD1(sqrt); ADD1(random); -#define ADD2(name) \ - add_native_method(#name, Method::CT_STATIC, _##name, 2, 2) + // ^math:pow(x;y) + ADDN(pow, 2); - // ^pow(x;y) - ADD2(pow); + // ^math:eq(a;b[;precision]) + add_native_method("eq", Method::CT_STATIC, _eq, 2, 3); -} + // ^math:crypt[password;salt] + ADDN(crypt, 2); -// in MSVC each thread has it's own pseudo-random sequence -// in win32 apache each thread can handle multiple requests -// so to get proper randoms we remember random generated in one thread -void MMath::configure_admin(Request&) { - // setting seed - srand( - randomizer ^ -#ifdef WIN32 - GetCurrentThreadId() ^ -#else - getpid() ^ -#endif - (unsigned int)time(NULL) - ); - if(!randomizer) - randomizer=rand(); -} - -// global variables - -Methoded *math_base_class; -Hash *math_consts; + // ^math:md5[string] + ADD1(md5); -// creator + // ^math:sha1[string] + ADD1(sha1); + + // ^math:digest[method;string|file;options] + add_native_method("digest", Method::CT_STATIC, _digest, 2, 3); + + // ^math:crc32[string] + ADD1(crc32); -Methoded *MMath_create(Pool& pool) { - math_consts=new(pool) Hash(pool); - math_consts->put( - *new(pool) String(pool, "PI"), - new(pool) VDouble(pool, PI)); + // ^math:uuid[] + // ^math:uuid[options hash] + add_native_method("uuid", Method::CT_STATIC, _uuid, 0, 1); + + // ^math:uuid7[] + // ^math:uuid7[options hash] + add_native_method("uuid7", Method::CT_STATIC, _uuid7, 0, 1); + + // ^math:uid64[] + // ^math:uid64[options hash] + add_native_method("uid64", Method::CT_STATIC, _uid64, 0, 1); - return math_base_class=new(pool) MMath(pool); + // ^math:convert[number|file](base-from)|[abc_from](base-to)|[abc_to][options] + add_native_method("convert", Method::CT_STATIC, _convert, 3, 4); }