--- parser3/src/classes/Attic/root.C 2001/03/13 11:15:03 1.35 +++ parser3/src/classes/Attic/root.C 2001/04/03 08:23:06 1.55 @@ -1,37 +1,39 @@ -/* - Parser +/** @file + Parser: @b ROOT parser class. + Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexander Petrosyan (http://design.ru/paf) - $Id: root.C,v 1.35 2001/03/13 11:15:03 paf Exp $ + $Id: root.C,v 1.55 2001/04/03 08:23:06 paf Exp $ */ -#include +#include "pa_config_includes.h" #include +#include "pa_common.h" #include "pa_request.h" #include "_root.h" #include "pa_vint.h" -#include "pa_common.h" static void _if(Request& r, const String& method_name, Array *params) { Value& condition_code=*static_cast(params->get(0)); // forcing ^if(this param type) r.fail_if_junction_(false, condition_code, method_name, "condition must be junction"); + bool condition=r.process(condition_code, 0/*no name*/, - false/*don't intercept string*/).get_bool(); - + false/*don't intercept string*/).as_bool(); if(condition) { Value& then_code=*static_cast(params->get(1)); - // forcing ^if(this param type) + // forcing ^if{this param type} r.fail_if_junction_(false, then_code, method_name, "then-parameter must be junction"); r.write_pass_lang(r.process(then_code)); } else if(params->size()==3) { Value& else_code=*static_cast(params->get(2)); - // forcing ^if(this param type) + // forcing ^if{this param type} r.fail_if_junction_(false, else_code, method_name, "else-parameter must be junction"); r.write_pass_lang(r.process(else_code)); @@ -43,21 +45,49 @@ static void _untaint(Request& r, const S String::Untaint_lang lang=static_cast( untaint_lang_name2enum->get_int(lang_name)); if(!lang) - R_THROW(0, 0, + RTHROW(0, 0, &lang_name, "invalid untaint language"); { - Temp_lang temp_lang(r, lang); Value *vbody=static_cast(params->get(1)); // forcing ^untaint[]{this param type} r.fail_if_junction_(false, *vbody, method_name, "body must be junction"); - r.write_pass_lang(r.process(*vbody)); + Temp_lang temp_lang(r, lang); // set temporarily specified ^untaint[language; + r.write_pass_lang(r.process(*vbody)); // process marking tainted with that lang + } +} + +static void _taint(Request& r, const String& method_name, Array *params) { + String::Untaint_lang lang; + if(params->size()==1) + lang=String::UL_TAINTED; // mark as simply 'tainted'. useful in table:set + else { + const String& lang_name=r.process(*static_cast(params->get(0))).as_string(); + lang=static_cast( + untaint_lang_name2enum->get_int(lang_name)); + if(!lang) + RTHROW(0, 0, + &lang_name, + "invalid taint language"); + } + + { + Value *vbody=static_cast(params->get(params->size()-1)); + // forcing {this param type} + r.fail_if_junction_(true, *vbody, method_name, "body must not be junction"); + + // set temporarily as-is language + Temp_lang temp_lang(r, String::UL_PASS_APPENDED); + String result(r.pool()); + result.append( + r.process(*vbody).as_string(), // process marking tainted with that lang + lang, true); // force result language to specified + r.write_pass_lang(result); } } - static void _process(Request& r, const String& method_name, Array *params) { // calculate pseudo file name of processed chars @@ -72,10 +102,12 @@ static void _process(Request& r, const S strncpy(place, MAX_STRING, method_name.cstr()); #endif - VClass& self_class=*r.self->get_class(); + VStateless_class& self_class=*r.self->get_class(); { // temporary zero @main so to maybe-replace it in processed code - Temp_method temp_method(self_class, *main_method_name, 0); + Temp_method temp_method_main(self_class, *main_method_name, 0); + // temporary zero @auto so it wouldn't be auto-called in Request::use_buf + Temp_method temp_method_auto(self_class, *auto_method_name, 0); // evaluate source to process const String& source= @@ -114,7 +146,7 @@ static void _while(Request& r, const Str int endless_loop_count=0; while(true) { if(++endless_loop_count>=1973) // endless loop? - R_THROW(0, 0, + RTHROW(0, 0, &method_name, "endless loop detected"); @@ -122,7 +154,7 @@ static void _while(Request& r, const Str r.process( vcondition, 0/*no name*/, - false/*don't intercept string*/).get_bool(); + false/*don't intercept string*/).as_bool(); if(!condition) // ...condition is true break; @@ -137,8 +169,7 @@ static void _use(Request& r, const Strin r.fail_if_junction_(true, vfile, method_name, "file name must not be junction"); - char *file=vfile.as_string().cstr(); - r.use_file(r.absolute(file)); + r.use_file(r.absolute(vfile.as_string())); } static void _for(Request& r, const String& method_name, Array *params) { @@ -146,8 +177,8 @@ static void _for(Request& r, const Strin Pool& pool=r.pool(); const String& var_name=r.process(*static_cast(params->get(0))).as_string(); - int from=(int)r.process(*static_cast(params->get(1))).get_double(); - int to=(int)r.process(*static_cast(params->get(2))).get_double(); + int from=(int)r.process(*static_cast(params->get(1))).as_double(); + int to=(int)r.process(*static_cast(params->get(2))).as_double(); Value& body_code=*static_cast(params->get(3)); // forcing ^menu{this param type} r.fail_if_junction_(false, body_code, @@ -155,12 +186,14 @@ static void _for(Request& r, const Strin Value *delim_code=params->size()==3+1+1?static_cast(params->get(3+1)):0; bool need_delim=false; + VInt *vint=new(pool) VInt(pool, 0); int endless_loop_count=0; - for(VInt *vint=new(pool) VInt(pool, from); vint->get_int()<=to; vint->inc()) { + for(int i=from; i<=to; i++) { if(++endless_loop_count>=2001) // endless loop? - R_THROW(0, 0, + RTHROW(0, 0, &method_name, "endless loop detected"); + vint->set_int(i); r.wcontext->put_element(var_name, vint); Value& processed_body=r.process(body_code); @@ -181,7 +214,7 @@ static void _eval(Request& r, const Stri // evaluate expresion Value *result=r.process(expr, 0/*no name*/, - true/*don't intercept string*/).get_expr_result(); + true/*don't intercept string*/).as_expr_result(); if(params->size()==2) { Value& fmt=*static_cast(params->get(1)); // forcing ^format[this param type] @@ -189,11 +222,11 @@ static void _eval(Request& r, const Stri method_name, "fmt must not be junction"); Pool& pool=r.pool(); - String *string=new(pool) String(pool); - string->APPEND_CONST(format(pool, result->get_double(), fmt.as_string().cstr())); - result=new(pool) VString(*string); + String& string=*new(pool) String(pool); + string.APPEND_CONST(format(pool, result->as_double(), fmt.as_string().cstr())); + result=new(pool) VString(string); } - r.wcontext->write(*result, String::Untaint_lang::NO /*always object, not string*/); + r.write_no_lang(*result); } @@ -201,7 +234,7 @@ typedef double (*math_one_double_op_func static double round(double op) { return floor(op+0.5); } static double sign(double op) { return op > 0 ? 1 : ( op < 0 ? -1 : 0 ); } -static void _math_one_double_op( +static void double_one_op( Request& r, const String& method_name, Array *params, math_one_double_op_func_ptr func) { @@ -212,72 +245,77 @@ static void _math_one_double_op( r.fail_if_junction_(false, param, method_name, "parameter must be expression"); - Value& result=*new(pool) VDouble(pool, (*func)(r.process(param).get_double())); - r.wcontext->write(result, String::Untaint_lang::NO /*always object, not string*/); + Value& result=*new(pool) VDouble(pool, (*func)(r.process(param).as_double())); + r.write_no_lang(result); } static void _round(Request& r, const String& method_name, Array *params) { - _math_one_double_op(r, method_name, params, &round); + double_one_op(r, method_name, params, &round); } static void _floor(Request& r, const String& method_name, Array *params) { - _math_one_double_op(r, method_name, params, &floor); + double_one_op(r, method_name, params, &floor); } static void _ceiling(Request& r, const String& method_name, Array *params) { - _math_one_double_op(r, method_name, params, &ceil); + double_one_op(r, method_name, params, &ceil); } static void _abs(Request& r, const String& method_name, Array *params) { - _math_one_double_op(r, method_name, params, &fabs); + double_one_op(r, method_name, params, &fabs); } static void _sign(Request& r, const String& method_name, Array *params) { - _math_one_double_op(r, method_name, params, &sign); + double_one_op(r, method_name, params, &sign); } -void initialize_root_class(Pool& pool, VClass& vclass) { +// initialize + +void initialize_root_class(Pool& pool, VStateless_class& vclass) { // ^if(condition){code-when-true} // ^if(condition){code-when-true}{code-when-false} - vclass.add_native_method("if", _if, 2, 3); + vclass.add_native_method("if", Method::CT_ANY, _if, 2, 3); + + // ^untaint[as-is|uri|sql|js|html|html-typo]{code} + vclass.add_native_method("untaint", Method::CT_ANY, _untaint, 2, 2); - // ^untaint[as-is|sql|js|html|html-typo]{code} - vclass.add_native_method("untaint", _untaint, 2, 2); + // ^taint[as-is|uri|sql|js|html|html-typo]{code} + vclass.add_native_method("taint", Method::CT_ANY, _taint, 1, 2); // ^process[code] - vclass.add_native_method("process", _process, 1, 1); + vclass.add_native_method("process", Method::CT_ANY, _process, 1, 1); // ^rem{code} - vclass.add_native_method("rem", _rem, 1, 1); + vclass.add_native_method("rem", Method::CT_ANY, _rem, 1, 1); // ^while(condition){code} - vclass.add_native_method("while", _while, 2, 2); + vclass.add_native_method("while", Method::CT_ANY, _while, 2, 2); // ^use[file] - vclass.add_native_method("use", _use, 1, 1); + vclass.add_native_method("use", Method::CT_ANY, _use, 1, 1); // ^for[i;from-number;to-number-inclusive]{code}[delim] - vclass.add_native_method("for", _for, 3+1, 3+1+1); + vclass.add_native_method("for", Method::CT_ANY, _for, 3+1, 3+1+1); // ^eval(expr) // ^eval(expr)[format] - vclass.add_native_method("eval", _eval, 1, 2); + vclass.add_native_method("eval", Method::CT_ANY, _eval, 1, 2); // math functions // ^round(expr) - vclass.add_native_method("round", _round, 1, 1); + vclass.add_native_method("round", Method::CT_ANY, _round, 1, 1); // ^floor(expr) - vclass.add_native_method("floor", _floor, 1, 1); + vclass.add_native_method("floor", Method::CT_ANY, _floor, 1, 1); // ^ceiling(expr) - vclass.add_native_method("ceiling", _ceiling, 1, 1); + vclass.add_native_method("ceiling", Method::CT_ANY, _ceiling, 1, 1); // ^abs(expr) - vclass.add_native_method("abs", _abs, 1, 1); + vclass.add_native_method("abs", Method::CT_ANY, _abs, 1, 1); // ^sign(expr) - vclass.add_native_method("sign", _sign, 1, 1); + vclass.add_native_method("sign", Method::CT_ANY, _sign, 1, 1); }