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| version 1.215, 2013/08/21 12:11:13 | version 1.239, 2016/10/11 19:56:41 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: parser @b operators. | Parser: parser @b operators. |
| Copyright (c) 2001-2012 Art. Lebedev Studio (http://www.artlebedev.com) | Copyright (c) 2001-2015 Art. Lebedev Studio (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| */ | */ |
| Line 20 | Line 20 |
| volatile const char * IDENT_OP_C="$Id$"; | volatile const char * IDENT_OP_C="$Id$"; |
| // limits | |
| #define MAX_LOOPS 20000 | |
| // defines | // defines |
| #define CASE_DEFAULT_VALUE "DEFAULT" | #define CASE_DEFAULT_VALUE "DEFAULT" |
| #define PROCESS_MAIN_OPTION_NAME "main" | |
| #define PROCESS_FILE_OPTION_NAME "file" | |
| #define PROCESS_LINENO_OPTION_NAME "lineno" | |
| // class | // class |
| Line 64 static const String exception_var_name(E | Line 57 static const String exception_var_name(E |
| class Untaint_lang_name2enum: public HashString<String::Language> { | class Untaint_lang_name2enum: public HashString<String::Language> { |
| public: | public: |
| Untaint_lang_name2enum() { | Untaint_lang_name2enum() { |
| #define ULN(name, LANG) \ | #define ULN(name, LANG) put(name, (value_type)(String::L_##LANG)); |
| put(String::Body(name), (value_type)(String::L_##LANG)); | |
| ULN("clean", CLEAN); | ULN("clean", CLEAN); |
| ULN("as-is", AS_IS); | ULN("as-is", AS_IS); |
| ULN("optimized-as-is", AS_IS|String::L_OPTIMIZE_BIT); | ULN("optimized-as-is", AS_IS|String::L_OPTIMIZE_BIT); |
| Line 94 static void _if(Request& r, MethodParams | Line 86 static void _if(Request& r, MethodParams |
| do { | do { |
| bool condition=params.as_bool(i, "condition must be expression", r); | bool condition=params.as_bool(i, "condition must be expression", r); |
| if(condition) { | if(condition) { |
| r.process_write(*params.get(i+1)); | r.process_write(params[i+1]); |
| return; | return; |
| } | } |
| i+=2; | i+=2; |
| } while (i < max_param); | } while (i < max_param); |
| if(i == max_param) | if(i == max_param) |
| r.process_write(*params.get(i)); | r.process_write(params[i]); |
| } | } |
| String::Language get_untaint_lang(const String& lang_name){ | String::Language get_untaint_lang(const String& lang_name){ |
| Line 122 static void _untaint(Request& r, MethodP | Line 114 static void _untaint(Request& r, MethodP |
| Value& vbody=params.as_junction(params.count()-1, "body must be code"); | Value& vbody=params.as_junction(params.count()-1, "body must be code"); |
| Temp_lang temp_lang(r, lang); // set temporarily specified ^untaint[language; | Temp_lang temp_lang(r, lang); // set temporarily specified ^untaint[language; |
| StringOrValue result=r.process(vbody); // process marking tainted with that lang | Value& result=r.process(vbody); // process marking tainted with that lang |
| r.write_assign_lang(result); | r.write_assign_lang(result); |
| } | } |
| } | } |
| Line 158 static void _process(Request& r, MethodP | Line 150 static void _process(Request& r, MethodP |
| if(maybe_target_self.get_string() || maybe_target_self.get_junction()) | if(maybe_target_self.get_string() || maybe_target_self.get_junction()) |
| target_self=&r.get_method_frame()->caller()->self(); | target_self=&r.get_method_frame()->caller()->self(); |
| else { | else { |
| target_self=&maybe_target_self; index++; | target_self=&maybe_target_self; |
| if(params.count()==1) | |
| throw Exception(PARSER_RUNTIME, 0, "no body specified"); | |
| index++; | |
| } | } |
| { | { |
| VStateless_class *target_class=target_self->get_class(); | VStateless_class *target_class=target_self->get_class(); |
| if(!target_class) | if(!target_class) |
| throw Exception(PARSER_RUNTIME, | throw Exception(PARSER_RUNTIME, 0, "no target class"); |
| 0, | |
| "no target class"); | |
| // temporary remove language change | // temporary remove language change |
| Temp_lang temp_lang(r, String::L_PARSER_CODE); | Temp_lang temp_lang(r, String::L_PARSER_CODE); |
| // temporary zero @main so to maybe-replace it in processed code | // temporary zero @main so to maybe-replace it in processed code |
| Temp_method temp_method_main(*target_class, main_method_name, 0); | Temp_method temp_method_main(*target_class, main_method_name, 0); |
| // temporary zero @auto so it wouldn't be auto-called in Request::use_buf | |
| Temp_method temp_method_auto(*target_class, auto_method_name, 0); | |
| const String* main_alias=0; | const String* main_alias=0; |
| const String* file_alias=0; | const String* file_alias=0; |
| int line_no_alias_offset=0; | int line_no_alias_offset=0; |
| bool allow_class_replace=false; | |
| size_t options_index=index+1; | size_t options_index=index+1; |
| if(options_index<params.count()) | if(options_index<params.count()) |
| if(HashStringValue* options=params.as_hash(options_index)) { | if(HashStringValue* options=params.as_hash(options_index)) { |
| int valid_options=0; | int valid_options=0; |
| if(Value* vmain_alias=options->get(PROCESS_MAIN_OPTION_NAME)) { | for(HashStringValue::Iterator i(*options); i; i.next() ){ |
| valid_options++; | |
| main_alias=&vmain_alias->as_string(); | String::Body key=i.key(); |
| } | Value* value=i.value(); |
| if(Value* vfile_alias=options->get(PROCESS_FILE_OPTION_NAME)) { | |
| valid_options++; | if(key == "main") { |
| file_alias=&vfile_alias->as_string(); | valid_options++; |
| } | main_alias=&value->as_string(); |
| if(Value* vline_no_alias_offset=options->get(PROCESS_LINENO_OPTION_NAME)) { | } else if(key == "file") { |
| valid_options++; | valid_options++; |
| line_no_alias_offset=vline_no_alias_offset->as_int(); | file_alias=&value->as_string(); |
| } else if(key == "lineno") { | |
| valid_options++; | |
| line_no_alias_offset=value->as_int(); | |
| } else if(key == "replace") { | |
| valid_options++; | |
| allow_class_replace=r.process(*value).as_bool(); | |
| } | |
| } | } |
| if(valid_options!=options->count()) | if(valid_options!=options->count()) |
| throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); | throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); |
| } | } |
| uint processe_file_no=file_alias? | uint processe_file_no=file_alias ? r.register_file(r.absolute(*file_alias)) : pseudo_file_no__process; |
| r.register_file(r.absolute(*file_alias)) | |
| : pseudo_file_no__process; | |
| // process...{string} | // process...{string} |
| Value& vjunction=params.as_junction(index, "body must be code"); | Value& vjunction=params.as_junction(index, "body must be code"); |
| // evaluate source to process | // evaluate source to process |
| const String& source=r.process_to_string(vjunction); | const String& source=r.process_to_string(vjunction); |
| r.use_buf(*target_class, | |
| source.untaint_cstr(String::L_AS_IS, r.connection(false)), | Temp_class_replace class_replace(r, allow_class_replace); |
| main_alias, | |
| processe_file_no, | r.use_buf(*target_class, source.untaint_cstr(String::L_AS_IS, r.connection(false)), main_alias, processe_file_no, line_no_alias_offset); |
| line_no_alias_offset); | |
| // main_method | // main_method |
| main_method=target_class->get_method(main_method_name); | main_method=target_class->get_method(main_method_name); |
| Line 243 static void _while(Request& r, MethodPar | Line 240 static void _while(Request& r, MethodPar |
| if(delim_maybe_code){ // delimiter set | if(delim_maybe_code){ // delimiter set |
| bool need_delim=false; | bool need_delim=false; |
| while(true) { | while(true) { |
| if(++endless_loop_count>=MAX_LOOPS) // endless loop? | if(++endless_loop_count>=pa_loop_limit) // endless loop? |
| throw Exception(PARSER_RUNTIME, | throw Exception(PARSER_RUNTIME, 0, "endless loop detected"); |
| 0, | |
| "endless loop detected"); | |
| if(!r.process_to_value(vcondition, false/*don't intercept string*/).as_bool()) | if(!r.process(vcondition).as_bool()) |
| break; | break; |
| StringOrValue sv_processed=r.process(body_code); | Value& sv_processed=r.process(body_code); |
| Request::Skip lskip=r.get_skip(); r.set_skip(Request::SKIP_NOTHING); | Request::Skip lskip=r.get_skip(); r.set_skip(Request::SKIP_NOTHING); |
| const String* s_processed=sv_processed.get_string(); | const String* s_processed=sv_processed.get_string(); |
| Line 268 static void _while(Request& r, MethodPar | Line 263 static void _while(Request& r, MethodPar |
| } | } |
| } else { | } else { |
| while(true) { | while(true) { |
| if(++endless_loop_count>=MAX_LOOPS) // endless loop? | if(++endless_loop_count>=pa_loop_limit) // endless loop? |
| throw Exception(PARSER_RUNTIME, | throw Exception(PARSER_RUNTIME, 0, "endless loop detected"); |
| 0, | |
| "endless loop detected"); | |
| if(!r.process_to_value(vcondition, false/*don't intercept string*/).as_bool()) | if(!r.process(vcondition).as_bool()) |
| break; | break; |
| r.process_write(body_code); | r.process_write(body_code); |
| Line 288 static void _while(Request& r, MethodPar | Line 281 static void _while(Request& r, MethodPar |
| static void _use(Request& r, MethodParams& params) { | static void _use(Request& r, MethodParams& params) { |
| Value& vfile=params.as_no_junction(0, FILE_NAME_MUST_NOT_BE_CODE); | Value& vfile=params.as_no_junction(0, FILE_NAME_MUST_NOT_BE_CODE); |
| bool allow_class_replace=false; | |
| if(params.count()==2) | |
| if(HashStringValue* options=params.as_hash(1)) { | |
| int valid_options=0; | |
| for(HashStringValue::Iterator i(*options); i; i.next() ){ | |
| String::Body key=i.key(); | |
| Value* value=i.value(); | |
| if(key == "replace") { | |
| valid_options++; | |
| allow_class_replace=r.process(*value).as_bool(); | |
| } | |
| if(valid_options!=options->count()) | |
| throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); | |
| } | |
| } | |
| Temp_class_replace class_replace(r, allow_class_replace); | |
| // _use could be called from the parser3 method only, so caller is always defined | // _use could be called from the parser3 method only, so caller is always defined |
| r.use_file(r.main_class, vfile.as_string(), r.get_method_filename(&r.get_method_frame()->caller()->method)); | r.use_file(r.main_class, vfile.as_string(), r.get_method_filename(&r.get_method_frame()->caller()->method)); |
| } | } |
| static void set_skip(Request& r, Request::Skip askip) { | static void set_skip(Request& r, Request::Skip askip) { |
| if(!r.get_in_cycle()) | if(!r.get_in_cycle()) |
| throw Exception(askip==Request::SKIP_BREAK?"parser.break":"parser.continue", | throw Exception(askip==Request::SKIP_BREAK ? "parser.break" : "parser.continue", 0, "without cycle"); |
| 0, | |
| "without cycle"); | |
| r.set_skip(askip); | r.set_skip(askip); |
| } | } |
| static void _break(Request& r, MethodParams&) { | static void _break(Request& r, MethodParams& params) { |
| set_skip(r, Request::SKIP_BREAK); | if(!params.count() || params.as_bool(0, "condition must be expression", r)) set_skip(r, Request::SKIP_BREAK); |
| } | } |
| static void _continue(Request& r, MethodParams&) { | static void _continue(Request& r, MethodParams& params) { |
| set_skip(r, Request::SKIP_CONTINUE); | if(!params.count() || params.as_bool(0, "condition must be expression", r)) set_skip(r, Request::SKIP_CONTINUE); |
| } | } |
| static void _for(Request& r, MethodParams& params) { | static void _for(Request& r, MethodParams& params) { |
| Line 318 static void _for(Request& r, MethodParam | Line 330 static void _for(Request& r, MethodParam |
| Value& body_code=params.as_junction(3, "body must be code"); | Value& body_code=params.as_junction(3, "body must be code"); |
| Value* delim_maybe_code=params.count()>4?¶ms[4]:0; | Value* delim_maybe_code=params.count()>4?¶ms[4]:0; |
| if(to-from>=MAX_LOOPS) // too long loop? | if(to-from>=pa_loop_limit) // too long loop? |
| throw Exception(PARSER_RUNTIME, | throw Exception(PARSER_RUNTIME, 0, "endless loop detected"); |
| 0, | |
| "endless loop detected"); | |
| VInt* vint=new VInt(0); | VInt* vint=new VInt(0); |
| VMethodFrame& caller=*r.get_method_frame()->caller(); | VMethodFrame& caller=*r.get_method_frame()->caller(); |
| caller.put_element(var_name, vint, false); | r.put_element(caller, var_name, vint); |
| if(delim_maybe_code){ // delimiter set | if(delim_maybe_code){ // delimiter set |
| bool need_delim=false; | bool need_delim=false; |
| for(int i=from; i<=to; i++) { | for(int i=from; i<=to; i++) { |
| vint->set_int(i); | vint->set_int(i); |
| StringOrValue sv_processed=r.process(body_code); | Value& sv_processed=r.process(body_code); |
| Request::Skip lskip=r.get_skip(); r.set_skip(Request::SKIP_NOTHING); | Request::Skip lskip=r.get_skip(); r.set_skip(Request::SKIP_NOTHING); |
| const String* s_processed=sv_processed.get_string(); | const String* s_processed=sv_processed.get_string(); |
| Line 364 static void _for(Request& r, MethodParam | Line 374 static void _for(Request& r, MethodParam |
| static void _eval(Request& r, MethodParams& params) { | static void _eval(Request& r, MethodParams& params) { |
| Value& expr=params.as_junction(0, "need expression"); | Value& expr=params.as_junction(0, "need expression"); |
| // evaluate expresion | // evaluate expresion |
| Value& value_result=r.process_to_value(expr, | Value& value_result=r.process(expr).as_expr_result(); |
| false/*don't intercept string*/).as_expr_result(); | |
| if(params.count()>1) { | if(params.count()>1) { |
| const String& fmt=params.as_string(1, "fmt must be string").trim(); | const String& fmt=params.as_string(1, "fmt must be string").trim(); |
| if(fmt.is_empty()){ | if(fmt.is_empty()){ |
| Line 434 public: | Line 443 public: |
| }; | }; |
| #endif | #endif |
| static void _switch(Request& r, MethodParams& params) { | static void _switch(Request& r, MethodParams& params) { |
| Switch_data* data=new Switch_data(r, r.process_to_value(params[0])); | Switch_data* data=new Switch_data(r, r.process(params[0])); |
| Temp_hash_value<HashString<void*>, void*> switch_data_setter(&r.classes_conf, switch_data_name, data); | Temp_hash_value<HashString<void*>, void*> switch_data_setter(&r.classes_conf, switch_data_name, data); |
| Value& cases_code=params.as_junction(1, "switch cases must be code"); | Value& cases_code=params.as_junction(1, "switch cases must be code"); |
| // execution of found ^case[...]{code} must be in context of ^switch[...]{code} | // execution of found ^case[...]{code} must be in context of ^switch[...]{code} |
| // because of stacked WWrapper used there as wcontext | // because of stacked WWrapper used there as wcontext |
| r.process(cases_code, true/*intercept_string*/); | r.process(cases_code); |
| if(Value* selected_code=data->found? data->found: data->_default) | if(Value* selected_code=data->found? data->found: data->_default) |
| r.write_pass_lang(r.process(*selected_code)); | r.write_pass_lang(r.process(*selected_code)); |
| } | } |
| Line 467 static void _case(Request& r, MethodPara | Line 476 static void _case(Request& r, MethodPara |
| #endif | #endif |
| for(int i=0; i<count; i++){ | for(int i=0; i<count; i++){ |
| Value& value=r.process_to_value(params[i]); | Value& value=r.process(params[i]); |
| if(value.is_string() && value.as_string() == CASE_DEFAULT_VALUE){ | if(value.is_string() && value.as_string() == CASE_DEFAULT_VALUE){ |
| data->_default=code; | data->_default=code; |
| Line 490 static void _case(Request& r, MethodPara | Line 499 static void _case(Request& r, MethodPara |
| } | } |
| #ifndef DOXYGEN | #ifndef DOXYGEN |
| struct Try_catch_result { | struct Try_catch_result { |
| StringOrValue processed_code; | ValueRef processed_code; |
| const String* exception_should_be_handled; | const String* exception_should_be_handled; |
| Try_catch_result(): exception_should_be_handled(0) {} | Try_catch_result(): exception_should_be_handled(0) {} |
| }; | }; |
| /// Auto-object used for temporary changing Request::skip. | |
| class Temp_skip { | |
| Request& frequest; | |
| Request::Skip saved_skip; | |
| public: | |
| Temp_skip(Request& arequest) : frequest(arequest), saved_skip(arequest.get_skip()) { | |
| arequest.set_skip(Request::SKIP_NOTHING); | |
| } | |
| ~Temp_skip() { | |
| if(frequest.get_skip() == Request::SKIP_NOTHING) | |
| frequest.set_skip(saved_skip); | |
| } | |
| }; | |
| #endif | #endif |
| /// used by ^try and ^cache, @returns $exception.handled[string] if any | /// used by ^try and ^cache, @returns $exception.handled[string] if any |
| template<class I> | template<class I> |
| static Try_catch_result try_catch(Request& r, | static Try_catch_result try_catch(Request& r, Value& body_code(Request&, I), I info, Value* catch_code, bool could_be_handled_by_caller=false) { |
| StringOrValue body_code(Request&, I), I info, | |
| Value* catch_code, | |
| bool could_be_handled_by_caller=false) | |
| { | |
| Try_catch_result result; | Try_catch_result result; |
| // minor bug: context not restored if only finally code is present, see #1062 | |
| if(!catch_code) { | if(!catch_code) { |
| result.processed_code=body_code(r, info); | result.processed_code=body_code(r, info); |
| return result; | return result; |
| Line 516 static Try_catch_result try_catch(Reques | Line 536 static Try_catch_result try_catch(Reques |
| try { | try { |
| result.processed_code=body_code(r, info); | result.processed_code=body_code(r, info); |
| } catch(const Exception& e) { | } catch(const Exception& e) { |
| Request_context_saver throw_context(r); // taking snapshot of throw-context [stack trace contains error] | Request_context_saver throw_context(r); // remembering exception stack trace |
| Request::Exception_details details=r.get_details(e); | Request::Exception_details details=r.get_details(e); |
| try_context.restore(); // restoring try-context to perform catch-code | |
| Junction* junction=catch_code->get_junction(); | try_context.restore(); // restoring try-context for code after try and catch-code |
| Value* method_frame=junction->method_frame; | |
| Value* saved_exception_var_value=method_frame->get_element(exception_var_name); | |
| VMethodFrame& frame=*junction->method_frame; | |
| frame.put_element(exception_var_name, &details.vhash, false); | |
| result.processed_code=r.process(*catch_code); | { |
| Temp_value_element temp(r, *catch_code->get_junction()->method_frame, exception_var_name, &details.vhash); | |
| Temp_skip temp_skip(r); | |
| result.processed_code=r.process(*catch_code); | |
| } | |
| // retriving $exception.handled, restoring $exception var | // retriving $exception.handled |
| Value* vhandled=details.vhash.hash().get(exception_handled_part_name); | Value* vhandled=details.vhash.hash().get(exception_handled_part_name); |
| frame.put_element(exception_var_name, saved_exception_var_value, false); | |
| bool bhandled=false; | bool bhandled=false; |
| if(vhandled) { | if(vhandled) { |
| if(vhandled->is_string()) { // not simple $exception.handled(1/0)? | if(vhandled->is_string()) { // not simple $exception.handled(1/0)? |
| if(could_be_handled_by_caller) { // and we can possibly handle it | if(bhandled=could_be_handled_by_caller) { // and we can possibly handle it |
| result.exception_should_be_handled=vhandled->get_string(); // considering 'recovered' and let the caller recover | result.exception_should_be_handled=vhandled->get_string(); // considering 'recovered' and let the caller recover |
| return result; | |
| } | } |
| bhandled=false; | |
| } else | } else |
| bhandled=vhandled->as_bool(); | bhandled=vhandled->as_bool(); |
| } | } |
| if(!bhandled) { | if(!bhandled){ |
| throw_context.restore(); // restoring throw-context [exception were not handled] | throw_context.restore(); // restoring exception stack trace creared by try_context.restore() |
| rethrow; | rethrow; |
| } | } |
| } | } |
| Line 554 static Try_catch_result try_catch(Reques | Line 570 static Try_catch_result try_catch(Reques |
| return result; | return result; |
| } | } |
| static Value& process_try_body_code(Request& r, Value* body_code) { | |
| return r.process(*body_code); | |
| } | |
| // cache-- | // cache-- |
| // consts | // consts |
| Line 590 struct Locked_process_and_cache_put_acti | Line 610 struct Locked_process_and_cache_put_acti |
| static StringOrValue process_cache_body_code(Request& r, Value* body_code) { | static Value& process_cache_body_code(Request& r, Value* body_code) { |
| return StringOrValue(r.process_to_string(*body_code)); | return r.process(*body_code); |
| } | } |
| /* @todo maybe network order worth spending some effort? | /* @todo maybe network order worth spending some effort? |
| Line 615 static void locked_process_and_cache_put | Line 635 static void locked_process_and_cache_put |
| } else | } else |
| throw Exception(PARSER_RUNTIME, | throw Exception(PARSER_RUNTIME, |
| result.exception_should_be_handled, | result.exception_should_be_handled, |
| "$"EXCEPTION_VAR_NAME"."EXCEPTION_HANDLED_PART_NAME" value must be " | "$" EXCEPTION_VAR_NAME "." EXCEPTION_HANDLED_PART_NAME " value must be " |
| "either boolean or string '"CACHE_EXCEPTION_HANDLED_CACHE_NAME"'"); | "either boolean or string '" CACHE_EXCEPTION_HANDLED_CACHE_NAME "'"); |
| } else | } else |
| info.processed_code=&result.processed_code.as_string(); | info.processed_code=&((Value &)result.processed_code).as_string(); |
| // expiration time not spoiled by ^cache(0) or something? | // expiration time not spoiled by ^cache(0) or something? |
| if(info.scope->expires > time(0)) { | if(info.scope->expires > time(0)) { |
| Line 658 const String* locked_process_and_cache_p | Line 678 const String* locked_process_and_cache_p |
| cache_delete(file_spec); | cache_delete(file_spec); |
| return result; | return result; |
| } | } |
| #ifndef DOXYGEN | #ifndef DOXYGEN |
| struct Cache_get_result { | struct Cache_get_result { |
| const String* body; | const String* body; |
| bool expired; | bool expired; |
| }; | }; |
| #endif | #endif |
| static Cache_get_result cache_get(Request_charsets& charsets, const String& file_spec, time_t now) { | static Cache_get_result cache_get(Request_charsets& charsets, const String& file_spec, time_t now) { |
| Cache_get_result result={0, false}; | Cache_get_result result={0, false}; |
| Line 694 static time_t as_expires(Request& r, Met | Line 716 static time_t as_expires(Request& r, Met |
| int index, time_t now) { | int index, time_t now) { |
| time_t result; | time_t result; |
| if(Value* vdate=params[index].as(VDATE_TYPE)) | if(Value* vdate=params[index].as(VDATE_TYPE)) |
| result=static_cast<VDate*>(vdate)->get_time(); | result=(time_t)(static_cast<VDate*>(vdate)->get_time()); |
| else | else |
| result=now+(time_t)params.as_double(index, "lifespan must be date or number", r); | result=now+(time_t)params.as_double(index, "lifespan must be date or number", r); |
| return result; | return result; |
| } | } |
| static const String& as_file_spec(Request& r, MethodParams& params, int index) { | static const String& as_file_spec(Request& r, MethodParams& params, int index) { |
| return r.absolute(params.as_string(index, "filespec must be string")); | return r.absolute(params.as_string(index, "filespec must be string")); |
| } | } |
| static void _cache(Request& r, MethodParams& params) { | static void _cache(Request& r, MethodParams& params) { |
| if(params.count()==0) { | if(params.count()==0) { |
| // ^cache[] -- return current expiration time | // ^cache[] -- return current expiration time |
| Cache_scope* scope=static_cast<Cache_scope*>(r.classes_conf.get(cache_data_name)); | Cache_scope* scope=static_cast<Cache_scope*>(r.classes_conf.get(cache_data_name)); |
| if(!scope) | if(!scope) |
| throw Exception(PARSER_RUNTIME, | throw Exception(PARSER_RUNTIME, 0, "expire-time get without cache"); |
| 0, | r.write_no_lang(*new VDate((pa_time_t)scope->expires)); |
| "expire-time get without cache"); | |
| r.write_no_lang(*new VDate(scope->expires)); | |
| return; | return; |
| } | } |
| Line 783 static void _cache(Request& r, MethodPar | Line 805 static void _cache(Request& r, MethodPar |
| cache_delete(file_spec); | cache_delete(file_spec); |
| } | } |
| // process without cacheing | // process without caching |
| const String& processed_body=r.process_to_string(body_code); | if(catch_code){ |
| // write it out | Try_catch_result result=try_catch(r, process_try_body_code, &body_code, catch_code); |
| r.write_assign_lang(processed_body); | r.write_assign_lang(result.processed_code); |
| } else { | |
| r.write_assign_lang(r.process_to_string(body_code)); | |
| } | |
| } | } |
| static StringOrValue process_try_body_code(Request& r, Value* body_code) { | |
| return r.process(*body_code); | |
| } | |
| static void _try_operator(Request& r, MethodParams& params) { | static void _try_operator(Request& r, MethodParams& params) { |
| Value& body_code=params.as_junction(0, "body_code must be code"); | Value& body_code=params.as_junction(0, "body_code must be code"); |
| Value& catch_code=params.as_junction(1, "catch_code must be code"); | Value& catch_code=params.as_junction(1, "catch_code must be code"); |
| Value* finally_code=(params.count()==3) ? ¶ms.as_junction(2, "finally_code must be code") : 0; | Value* finally_code=(params.count()==3) ? ¶ms.as_junction(2, "finally_code must be code") : 0; |
| Try_catch_result result; | Try_catch_result result; |
| StringOrValue finally_result; | |
| try{ | try{ |
| result=try_catch(r, | // process try and catch code |
| process_try_body_code, &body_code, | result=try_catch(r, process_try_body_code, &body_code, &catch_code); |
| &catch_code); | |
| if(result.exception_should_be_handled) | |
| throw Exception(PARSER_RUNTIME, | |
| result.exception_should_be_handled, | |
| "catch block must set $exception.handled to some boolean value, not string"); | |
| } catch(...){ | } catch(...){ |
| if(finally_code) | // process finally code but ignore the result |
| finally_result=r.process(*finally_code); | if(finally_code){ |
| Temp_skip temp(r); | |
| Value &finally_result=r.process(*finally_code); | |
| } | |
| rethrow; | rethrow; |
| } | } |
| if(finally_code) | // process finally code |
| finally_result=r.process(*finally_code); | if(finally_code){ |
| Temp_skip temp(r); | |
| Value& finally_result=r.process(*finally_code); | |
| // write out processed body_code or catch_code | // no exception in try/catch or finally, writing processed body_code or catch_code |
| r.write_pass_lang(result.processed_code); | r.write_pass_lang(result.processed_code); |
| // write out processed finally code | // write out processed finally code |
| if(finally_code) | |
| r.write_pass_lang(finally_result); | r.write_pass_lang(finally_result); |
| } else { | |
| // no exception in try/catch, writing processed body_code or catch_code | |
| r.write_pass_lang(result.processed_code); | |
| } | |
| } | } |
| static void _throw_operator(Request&, MethodParams& params) { | static void _throw_operator(Request&, MethodParams& params) { |
| Line 867 static void _bpt(Request&, MethodParams& | Line 893 static void _bpt(Request&, MethodParams& |
| // constructor | // constructor |
| VClassMAIN::VClassMAIN(): VClass() { | VClassMAIN::VClassMAIN(): VClass(MAIN_CLASS_NAME) { |
| set_name(*new String(MAIN_CLASS_NAME)); | |
| #ifdef PA_BPT | #ifdef PA_BPT |
| // ^bpt[] | // ^bpt[] |
| Line 889 VClassMAIN::VClassMAIN(): VClass() { | Line 914 VClassMAIN::VClassMAIN(): VClass() { |
| // ^apply-taint[untaint lang][string] | // ^apply-taint[untaint lang][string] |
| add_native_method("apply-taint", Method::CT_ANY, _apply_taint, 1, 2, Method::CO_WITHOUT_FRAME); | add_native_method("apply-taint", Method::CT_ANY, _apply_taint, 1, 2, Method::CO_WITHOUT_FRAME); |
| // ^process[code] | // ^process{code} |
| // ^process[context]{code}[options hash] | |
| add_native_method("process", Method::CT_ANY, _process, 1, 3); | add_native_method("process", Method::CT_ANY, _process, 1, 3); |
| // ^rem{code} | // ^rem{code} |
| Line 898 VClassMAIN::VClassMAIN(): VClass() { | Line 924 VClassMAIN::VClassMAIN(): VClass() { |
| // ^while(condition){code} | // ^while(condition){code} |
| add_native_method("while", Method::CT_ANY, _while, 2, 3, Method::CO_WITHOUT_FRAME); | add_native_method("while", Method::CT_ANY, _while, 2, 3, Method::CO_WITHOUT_FRAME); |
| // ^use[file] | // ^use[file[;options hash]] |
| add_native_method("use", Method::CT_ANY, _use, 1, 1); | add_native_method("use", Method::CT_ANY, _use, 1, 2); |
| // ^break[] | // ^break[] |
| add_native_method("break", Method::CT_ANY, _break, 0, 0, Method::CO_WITHOUT_FRAME); | // ^break(condition) |
| add_native_method("break", Method::CT_ANY, _break, 0, 1, Method::CO_WITHOUT_FRAME); | |
| // ^continue[] | // ^continue[] |
| add_native_method("continue", Method::CT_ANY, _continue, 0, 0, Method::CO_WITHOUT_FRAME); | // ^continue(condition) |
| add_native_method("continue", Method::CT_ANY, _continue, 0, 1, Method::CO_WITHOUT_FRAME); | |
| // ^for[i](from-number;to-number-inclusive){code}[delim] | // ^for[i](from-number;to-number-inclusive){code}[delim] |
| add_native_method("for", Method::CT_ANY, _for, 3+1, 3+1+1, Method::CO_WITHOUT_WCONTEXT); | add_native_method("for", Method::CT_ANY, _for, 3+1, 3+1+1); |
| // ^eval(expr) | // ^eval(expr) |
| // ^eval(expr)[format] | // ^eval(expr)[format] |