--- parser3/src/classes/math.C 2003/04/15 11:34:03 1.28 +++ parser3/src/classes/math.C 2003/11/20 16:34:23 1.36 @@ -1,15 +1,16 @@ /** @file Parser: @b math parser class. - Copyright(c) 2001, 2003 ArtLebedev Group(http://www.artlebedev.com) + Copyright(c) 2001-2003 ArtLebedev Group(http://www.artlebedev.com) Author: Alexandr Petrosian (http://paf.design.ru) portions from gen_uuid.c, Copyright (C) 1996, 1997, 1998, 1999 Theodore Ts'o. */ -static const char* IDENT_MATH_C="$Date: 2003/04/15 11:34:03 $"; +static const char * const IDENT_MATH_C="$Date: 2003/11/20 16:34:23 $"; +#include "pa_vmethod_frame.h" #include "pa_common.h" #include "pa_vint.h" #include "pa_vmath.h" @@ -23,25 +24,32 @@ static const char* IDENT_MATH_C="$Date: # include #endif -#ifdef HAVE_CRYPT_H -#include +#ifdef HAVE_CRYPT +# ifdef HAVE_CRYPT_H +# include +# endif +#else + extern char *crypt(const char* , const char* ); #endif // defines -#define PI 3.1415926535 #define MAX_SALT 8 // class -class MMath : public Methoded { +class MMath: public Methoded { public: - MMath(Pool& pool); + MMath(); public: // Methoded bool used_directly() { return false; } }; +// global variables + +DECLARE_CLASS_VAR(math, 0 /*fictive*/, new MMath); + #ifdef WIN32 class Random_provider { HCRYPTPROV fhProv; @@ -144,23 +152,26 @@ static void random(void *buffer, size_t #endif } + // methods + +#define MAX_UINT 0xFFFFFFFFu + static inline int _random(uint top) { uint raw; random(&raw, sizeof(raw)); - return int(double(raw) / 0x100000000 * top ); + return int(double(raw) / MAX_UINT * top ); } -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"); +static void _random(Request& r, MethodParams& params) { + Value& range=params.as_junction(0, "range must be expression"); double top=r.process_to_value(range).as_double(); - if(top<=0) + if(top<=0 || top>MAX_UINT) throw Exception("parser.runtime", - &method_name, - "top must be above 0(%g)", top); + 0, + "top(%g) must be [1..%u]", top, MAX_UINT); - r.write_no_lang(*new(pool) VInt(pool, _random(uint(top)))); + r.write_no_lang(*new VInt(_random(uint(top)))); } @@ -169,23 +180,20 @@ static double frac(double param) { retur 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"); +static void math1(Request& r, MethodParams& params, math1_func_ptr func) { + Value& param=params.as_junction(0, "parameter must be expression"); - double result=(*func)(r.process_to_value(param).as_double()); - r.write_no_lang(*new(pool) VDouble(pool, result)); + double result=func(r.process_to_value(param).as_double()); + r.write_no_lang(*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); @@ -199,32 +207,29 @@ 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"); +static void math2(Request& r, MethodParams& params, math2_func_ptr func) { + Value& a=params.as_junction(0, "parameter must be expression"); + Value& b=params.as_junction(1, "parameter must be expression"); - double result=(*func)( + double result=func( r.process_to_value(a).as_double(), r.process_to_value(b).as_double()); - r.write_no_lang(*new(pool) VDouble(pool, result)); + r.write_no_lang(*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); inline bool is_salt_body_char(int c) { return isalnum(c) || c == '.' || c=='/'; } -static size_t calc_prefix_size(const char *salt) { +static size_t calc_prefix_size(const char* salt) { if(size_t salt_size=strlen(salt)) { if(!is_salt_body_char(salt[0])) { // $... {... - const char *cur=salt+1; // skip + const char* cur=salt+1; // skip while(is_salt_body_char(*cur++)) // ...$ ...} ; return cur-salt; @@ -233,13 +238,12 @@ static size_t calc_prefix_size(const cha } else return 0; } -static void _crypt(Request& r, const String& method_name, MethodParams *params) { - Pool& pool=r.pool(); - 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(); +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; + const char* normal_salt; char normalize_buf[MAX_STRING]; if(prefix_size==strlen(maybe_bodyless_salt)) { // bodyless? strncpy(normalize_buf, maybe_bodyless_salt, MAX_STRING-MAX_SALT-1); @@ -258,49 +262,58 @@ static void _crypt(Request& r, const Str */ if(strncmp(normal_salt, PA_MD5PW_ID, PA_MD5PW_IDLEN) == 0) { const size_t sample_size=120; - char *sample_buf=(char *)pool.malloc(sample_size); - PA_MD5Encode((const unsigned char *)password, - (const unsigned char *)normal_salt, 1/*TRUE: mix in magic string*/, - sample_buf, sample_size); - r.write_pass_lang(*new(pool) String(pool, sample_buf)); + char *sample_buf=new(PointerFreeGC) char[sample_size]; + pa_MD5Encode((const unsigned char *)password, + (const unsigned char *)normal_salt, sample_buf, sample_size); + String sample(sample_buf); + r.write_pass_lang(sample); } else { #ifdef HAVE_CRYPT - const char *sample_buf=crypt(password, normal_salt); - if(!sample_buf // nothing generated - || !sample_buf[0] // generated nothing - || strncmp(sample_buf, normal_salt, prefix_size)!=0) // salt prefix not preserved + const char* static_sample_buf=crypt(password, normal_salt); + if(!static_sample_buf // nothing generated + || !static_sample_buf[0] // generated nothing + || strncmp(static_sample_buf, normal_salt, prefix_size)!=0) // salt prefix not preserved throw Exception("parser.runtime", - &method_name, - "on this platform does not support '%.*s' salt prefix", prefix_size, normal_salt); + 0, + "crypt on this platform does not support '%.*s' salt prefix", prefix_size, normal_salt); - r.write_pass_lang(*new(pool) String(pool, sample_buf)); + r.write_pass_lang(String(pa_strdup(static_sample_buf))); #else throw Exception("parser.runtime", - &method_name, + 0, "salt must start with '" PA_MD5PW_ID "'"); #endif } } -static void _md5(Request& r, const String& method_name, MethodParams *params) { - Pool& pool=r.pool(); - const char *string=params->as_string(0, "parameter must be string").cstr(); +static const char* hex_string(unsigned char* bytes, size_t size, bool upcase) { + char *bytes_hex=new(PointerFreeGC) char [size*2/*byte->hh*/+1/*for zero-teminator*/]; + unsigned char *src=bytes; + unsigned char *end=bytes+size; + char *dest=bytes_hex; + + static const char *hex=upcase?"0123456789ABCDEF":"0123456789abcdef"; + + for(; srchh*/+1/*for zero-teminator*/); - unsigned char *src=digest; - unsigned char *end=digest+sizeof(digest); - char *dest=digest_bytes_hex; - while(src> 8, uuid.clock_seq & 0xFF, uuid.node[0], uuid.node[1], uuid.node[2], uuid.node[3], uuid.node[4], uuid.node[5]); - r.write_pass_lang(*new(pool) String(pool, guid_cstr)); + r.write_pass_lang(*new String(uuid_cstr)); +} + +static void _uid64(Request& r, MethodParams& /*params*/) { + + unsigned char id[64/8]; + random(&id, sizeof(id)); + + r.write_pass_lang(*new String(hex_string(id, sizeof(id), true))); } // constructor -MMath::MMath(Pool& apool) : Methoded(apool, "math") { +MMath::MMath(): Methoded("math") { // ^FUNC(expr) #define ADDX(name, X) \ add_native_method(#name, Method::CT_STATIC, _##name, X, X) @@ -377,22 +397,9 @@ MMath::MMath(Pool& apool) : Methoded(apo // ^md5[string] ADD1(md5); - // ^guid[] - ADD0(guid); -} - -// global variables - -Methoded *math_base_class; -Hash *math_consts; - -// creator - -Methoded *MMath_create(Pool& pool) { - math_consts=new(pool) Hash(pool); - math_consts->put( - *new(pool) String(pool, "PI"), - new(pool) VDouble(pool, PI)); + // ^uuid[] + ADD0(uuid); - return math_base_class=new(pool) MMath(pool); + // ^uid64[] + ADD0(uid64); }