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| version 1.224, 2015/10/26 01:21:54 | version 1.271, 2024/12/23 16:59:17 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: parser @b operators. | Parser: parser @b operators. |
| Copyright (c) 2001-2015 Art. Lebedev Studio (http://www.artlebedev.com) | Copyright (c) 2001-2024 Art. Lebedev Studio (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru> |
| */ | */ |
| #include "classes.h" | #include "classes.h" |
| 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" |
| Line 80 public: | Line 76 public: |
| ULN("json", JSON); | ULN("json", JSON); |
| #undef ULN | #undef ULN |
| } | } |
| } untaint_lang_name2enum; | |
| static Untaint_lang_name2enum &instance(){ | |
| static Untaint_lang_name2enum *singleton=NULL; | |
| if(!singleton) | |
| singleton=new Untaint_lang_name2enum; | |
| return *singleton; | |
| } | |
| }; | |
| // methods | // methods |
| Line 90 static void _if(Request& r, MethodParams | Line 94 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){ |
| String::Language lang=untaint_lang_name2enum.get(lang_name); | String::Language lang=Untaint_lang_name2enum::instance().get(lang_name); |
| if(!lang) | if(!lang) |
| throw Exception(PARSER_RUNTIME, &lang_name, "invalid taint language"); | throw Exception(PARSER_RUNTIME, &lang_name, "invalid taint language"); |
| return lang; | return lang; |
| Line 110 String::Language get_untaint_lang(const | Line 114 String::Language get_untaint_lang(const |
| static void _untaint(Request& r, MethodParams& params) { | static void _untaint(Request& r, MethodParams& params) { |
| String::Language lang; | String::Language lang; |
| if(params.count()==1) | if(params.count()==1) |
| lang=String::L_AS_IS; // mark as simply 'as-is'. useful in html from sql | lang=String::L_AS_IS; // mark as simply 'as-is'. useful in html from sql |
| else | else |
| lang=get_untaint_lang(params.as_string(0, "lang must be string")); | lang=get_untaint_lang(params.as_string(0, "lang must be string")); |
| { | Value& vbody=params.as_junction(params.count()-1, "body must be code"); |
| Value& vbody=params.as_junction(params.count()-1, "body must be code"); | Value& result=r.process(vbody); |
| Temp_lang temp_lang(r, lang); // set temporarily specified ^untaint[language; | if(const String* string=result.get_string()){ |
| StringOrValue result=r.process(vbody); // process marking tainted with that lang | String &untainted=*new String(); |
| r.write_assign_lang(result); | string->append_to(untainted, lang); // mark all tainted to specified language |
| } | r.write(untainted); |
| } else | |
| r.write(result); // this is not normal, just backward compatibility | |
| } | } |
| static void _taint(Request& r, MethodParams& params) { | static void _taint(Request& r, MethodParams& params) { |
| Line 134 static void _taint(Request& r, MethodPar | Line 140 static void _taint(Request& r, MethodPar |
| Value& vbody=params.as_no_junction(params.count()-1, "body must not be code"); | Value& vbody=params.as_no_junction(params.count()-1, "body must not be code"); |
| String result(vbody.as_string(), lang); // force result language to specified | String result(vbody.as_string(), lang); // force result language to specified |
| r.write_assign_lang(result); | r.write(result); |
| } | } |
| } | } |
| Line 142 static void _apply_taint(Request& r, Met | Line 148 static void _apply_taint(Request& r, Met |
| String::Language lang=params.count()==1 ? String::L_AS_IS : get_untaint_lang(params.as_string(0, "lang must be string")); | String::Language lang=params.count()==1 ? String::L_AS_IS : get_untaint_lang(params.as_string(0, "lang must be string")); |
| const String &sbody=params.as_string(params.count()-1, "body must be string"); | const String &sbody=params.as_string(params.count()-1, "body must be string"); |
| String::Body result_body=sbody.cstr_to_string_body_untaint(lang, r.connection(false), &r.charsets); | String::Body result_body=sbody.cstr_to_string_body_untaint(lang, r.connection(false), &r.charsets); |
| r.write_pass_lang(*new String(result_body, String::L_AS_IS)); | r.write(*new String(result_body, String::L_AS_IS)); |
| } | } |
| static void _process(Request& r, MethodParams& params) { | static void _process(Request& r, MethodParams& params) { |
| Line 154 static void _process(Request& r, MethodP | Line 160 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 | |
| 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; |
| Line 197 static void _process(Request& r, MethodP | Line 200 static void _process(Request& r, MethodP |
| line_no_alias_offset=value->as_int(); | line_no_alias_offset=value->as_int(); |
| } else if(key == "replace") { | } else if(key == "replace") { |
| valid_options++; | valid_options++; |
| allow_class_replace=r.process_to_value(*value).as_bool(); | allow_class_replace=r.process(*value).as_bool(); |
| } | } |
| } | } |
| Line 205 static void _process(Request& r, MethodP | Line 208 static void _process(Request& r, MethodP |
| 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.full_disk_path(*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 |
| Line 215 static void _process(Request& r, MethodP | Line 216 static void _process(Request& r, MethodP |
| Temp_class_replace class_replace(r, allow_class_replace); | Temp_class_replace class_replace(r, allow_class_replace); |
| r.use_buf(*target_class, | r.use_buf(*target_class, source.untaint_cstr(String::L_PARSER_CODE, r.connection(false)), main_alias, processe_file_no, line_no_alias_offset); |
| source.untaint_cstr(String::L_AS_IS, r.connection(false)), | |
| main_alias, | |
| processe_file_no, | |
| 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 227 static void _process(Request& r, MethodP | Line 224 static void _process(Request& r, MethodP |
| // after restoring current-request-lang | // after restoring current-request-lang |
| // maybe-execute @main[] | // maybe-execute @main[] |
| if(main_method) { | if(main_method) { |
| VMethodFrame frame(*main_method, r.get_method_frame()->caller(), *target_self); | METHOD_FRAME_ACTION(*main_method, r.get_method_frame()->caller(), *target_self, { |
| frame.empty_params(); | frame.empty_params(); |
| r.op_call(frame); | r.call(frame); |
| r.write_pass_lang(frame.result()); | r.write(frame.result()); |
| }); | |
| } | } |
| } | } |
| Line 251 static void _while(Request& r, MethodPar | Line 249 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); | TempSkip4Delimiter skip(r); |
| const String* s_processed=sv_processed.get_string(); | const String* s_processed=sv_processed.get_string(); |
| if(s_processed && !s_processed->is_empty()) { // we have body | if(s_processed && !s_processed->is_empty()) { // we have body |
| if(need_delim) // need delim & iteration produced string? | if(need_delim) // need delim & iteration produced string? |
| r.write_pass_lang(r.process(*delim_maybe_code)); | r.write(r.process(*delim_maybe_code)); |
| else | else |
| need_delim=true; | need_delim=true; |
| } | } |
| r.write_pass_lang(sv_processed); | r.write(sv_processed); |
| if(lskip==Request::SKIP_BREAK) | if(skip.check_break()) |
| break; | break; |
| } | } |
| } 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); |
| Request::Skip lskip=r.get_skip(); r.set_skip(Request::SKIP_NOTHING); | |
| if(lskip==Request::SKIP_BREAK) | if(r.check_skip_break()) |
| break; | break; |
| } | } |
| } | } |
| } | } |
| 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); | const String& file_name=params.as_file_name(0); |
| const String* use_origin=0; | |
| bool allow_class_replace=false; | bool allow_class_replace=false; |
| bool load_auto_p=false; | |
| if(params.count()==2) | if(params.count()==2) |
| if(HashStringValue* options=params.as_hash(1)) { | if(HashStringValue* options=params.as_hash(1)) { |
| Line 306 static void _use(Request& r, MethodParam | Line 301 static void _use(Request& r, MethodParam |
| String::Body key=i.key(); | String::Body key=i.key(); |
| Value* value=i.value(); | Value* value=i.value(); |
| if(key == "origin") { | |
| valid_options++; | |
| use_origin=&value->as_string(); | |
| } | |
| if(key == "replace") { | if(key == "replace") { |
| valid_options++; | valid_options++; |
| allow_class_replace=r.process_to_value(*value).as_bool(); | allow_class_replace=r.process(*value).as_bool(); |
| } | } |
| if(valid_options!=options->count()) | if(key == "main") { |
| throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); | valid_options++; |
| load_auto_p=r.process(*value).as_bool(); | |
| } | |
| if(valid_options!=options->count()) | |
| throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); | |
| } | } |
| } | } |
| if(!use_origin) | |
| if(VMethodFrame* caller=r.get_method_frame()->caller()) | |
| use_origin=r.get_method_filespec(&caller->method); | |
| Temp_class_replace class_replace(r, allow_class_replace); | Temp_class_replace class_replace(r, allow_class_replace); |
| // _use could be called from the parser3 method only, so caller is always defined | r.use_file(file_name, use_origin, load_auto_p); |
| 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 _return(Request& r, MethodParams& params) { | |
| VMethodFrame& caller=*r.get_method_frame()->caller(); | |
| if(params.count()) | |
| r.put_element(caller, Symbols::RESULT_SYMBOL, &r.process(params[0])); | |
| r.set_skip_return(caller); | |
| } | } |
| static void _for(Request& r, MethodParams& params) { | static void _for(Request& r, MethodParams& params) { |
| Line 348 static void _for(Request& r, MethodParam | Line 360 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); |
| Line 363 static void _for(Request& r, MethodParam | Line 373 static void _for(Request& r, MethodParam |
| 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); | TempSkip4Delimiter skip(r); |
| const String* s_processed=sv_processed.get_string(); | const String* s_processed=sv_processed.get_string(); |
| if(s_processed && !s_processed->is_empty()) { // we have body | if(s_processed && !s_processed->is_empty()) { // we have body |
| if(need_delim) // need delim & iteration produced string? | if(need_delim) // need delim & iteration produced string? |
| r.write_pass_lang(r.process(*delim_maybe_code)); | r.write(r.process(*delim_maybe_code)); |
| else | else |
| need_delim=true; | need_delim=true; |
| } | } |
| r.write_pass_lang(sv_processed); | r.write(sv_processed); |
| if(lskip==Request::SKIP_BREAK) | if(skip.check_break()) |
| break; | break; |
| } | } |
| } else { | } else { |
| Line 383 static void _for(Request& r, MethodParam | Line 393 static void _for(Request& r, MethodParam |
| vint->set_int(i); | vint->set_int(i); |
| r.process_write(body_code); | r.process_write(body_code); |
| Request::Skip lskip=r.get_skip(); r.set_skip(Request::SKIP_NOTHING); | |
| if(lskip==Request::SKIP_BREAK) | if(r.check_skip_break()) |
| break; | break; |
| } | } |
| } | } |
| Line 394 static void _for(Request& r, MethodParam | Line 403 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()){ |
| r.write_no_lang(value_result); | r.write(value_result); |
| } else { | } else { |
| r.write_no_lang(String(format(value_result.as_double(), fmt.cstrm()))); | r.write(String(format_double(value_result.as_double(), fmt.cstrm()))); |
| } | } |
| } else | } else |
| r.write_no_lang(value_result); | r.write(value_result); |
| } | } |
| static void _connect(Request& r, MethodParams& params) { | static void _connect(Request& r, MethodParams& params) { |
| Line 464 public: | Line 472 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.process_write(*selected_code); |
| } | } |
| static void _case(Request& r, MethodParams& params) { | static void _case(Request& r, MethodParams& params) { |
| Line 497 static void _case(Request& r, MethodPara | Line 505 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 520 static void _case(Request& r, MethodPara | Line 528 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 546 static Try_catch_result try_catch(Reques | Line 565 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); | |
| 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); | |
| 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 $exception.handled(1/0)? |
| if(could_be_handled_by_caller) { // and we can possibly handle it | if(bhandled=could_be_handled_by_caller) { // and we can possibly handle it |
| result.exception_should_be_handled=vhandled->get_string(); // considering 'recovered' and let the caller recover | result.exception_should_be_handled=vhandled->get_string(); // considering 'recovered' and let the caller recover |
| return result; | |
| } | } |
| bhandled=false; | |
| } else | } else |
| bhandled=vhandled->as_bool(); | bhandled=vhandled->as_bool(); |
| } | } |
| if(!bhandled) { | if(!bhandled){ |
| throw_context.restore(); // restoring throw-context [exception were not handled] | throw_context.restore(); // restoring exception stack trace creared by try_context.restore() |
| rethrow; | rethrow; |
| } | } |
| } | } |
| Line 584 static Try_catch_result try_catch(Reques | Line 599 static Try_catch_result try_catch(Reques |
| return result; | return result; |
| } | } |
| static StringOrValue process_try_body_code(Request& r, Value* body_code) { | static Value& process_try_body_code(Request& r, Value* body_code) { |
| return r.process(*body_code); | return r.process(*body_code); |
| } | } |
| Line 624 struct Locked_process_and_cache_put_acti | Line 639 struct Locked_process_and_cache_put_acti |
| static StringOrValue process_cache_body_code(Request& r, Value* body_code) { | static Value& process_cache_body_code(Request& r, Value* body_code) { |
| return StringOrValue(r.process_to_string(*body_code)); | return r.process(*body_code); |
| } | } |
| /* @todo maybe network order worth spending some effort? | /* @todo maybe network order worth spending some effort? |
| Line 652 static void locked_process_and_cache_put | Line 667 static void locked_process_and_cache_put |
| "$" 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 692 const String* locked_process_and_cache_p | Line 707 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) { | |
| Cache_get_result result={0, false}; | |
| File_read_result file=file_read(charsets, file_spec, | static Cache_get_result cache_get(const String& file_spec, time_t now) { |
| false/*as_text*/, | Cache_get_result result={0, false}; |
| 0, //no params | |
| false/*fail_on_read_problem*/); | |
| if(file.success && file.length/* ignore reads which are empty due to | |
| non-unary open+lockEX conflict with lockSH */) { | |
| Data_string_serialized_prolog& prolog= | |
| *reinterpret_cast<Data_string_serialized_prolog *>(file.str); | |
| File_read_result file=file_read_binary(file_spec, false /*fail_on_read_problem*/); | |
| if(file.success && file.length /*ignore reads which are empty due to non-unary open+lockEX conflict with lockSH*/) { | |
| Data_string_serialized_prolog& prolog = *reinterpret_cast<Data_string_serialized_prolog *>(file.str); | |
| String* body=new String; | String* body=new String; |
| if( | if(file.length>=sizeof(Data_string_serialized_prolog) && prolog.version==DATA_STRING_SERIALIZED_VERSION) { |
| file.length>=sizeof(Data_string_serialized_prolog) | |
| && prolog.version==DATA_STRING_SERIALIZED_VERSION) { | |
| if(body->deserialize(sizeof(Data_string_serialized_prolog), file.str, file.length)) { | if(body->deserialize(sizeof(Data_string_serialized_prolog), file.str, file.length)) { |
| result.body=body; | result.body=body; |
| result.expired=prolog.expires <= now; | result.expired=prolog.expires <= now; |
| Line 724 static Cache_get_result cache_get(Reques | Line 734 static Cache_get_result cache_get(Reques |
| return result; | return result; |
| } | } |
| static time_t as_expires(Request& r, MethodParams& params, | |
| int index, time_t now) { | static time_t as_expires(Request& r, MethodParams& params, int index, time_t now) { |
| time_t result; | time_t result; |
| if(Value* vdate=params[index].as(VDATE_TYPE)) | if(VDate* vdate=dynamic_cast<VDate*>(¶ms[index])) |
| result=(time_t)(static_cast<VDate*>(vdate)->get_time()); | result=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.full_disk_path(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, 0, "expire-time get without cache"); | throw Exception(PARSER_RUNTIME, 0, "expire-time get without cache"); |
| r.write_no_lang(*new VDate((pa_time_t)scope->expires)); | r.write(*new VDate((pa_time_t)scope->expires)); |
| return; | return; |
| } | } |
| Line 785 static void _cache(Request& r, MethodPar | Line 797 static void _cache(Request& r, MethodPar |
| catch_code=¶ms.as_junction(3, "catch_code must be code"); | catch_code=¶ms.as_junction(3, "catch_code must be code"); |
| if(scope.expires>now) { | if(scope.expires>now) { |
| Cache_get_result cached=cache_get(r.charsets, file_spec, now); | Cache_get_result cached=cache_get(file_spec, now); |
| if(cached.body) { // have cached copy | if(cached.body) { // have cached copy |
| if(cached.expired) { | if(cached.expired) { |
| scope.body_from_disk=cached.body; // storing for user to retrive it with ^cache[] | scope.body_from_disk=cached.body; // storing for user to retrive it with ^cache[] |
| } else { | } else { |
| // and it's not expired yet write it out | // and it's not expired yet write it out |
| r.write_assign_lang(*cached.body); | r.write(*cached.body); |
| // happy with it | // happy with it |
| return; | return; |
| } | } |
| Line 804 static void _cache(Request& r, MethodPar | Line 816 static void _cache(Request& r, MethodPar |
| const String* processed_body=locked_process_and_cache_put(r, body_code, catch_code, scope, file_spec); | const String* processed_body=locked_process_and_cache_put(r, body_code, catch_code, scope, file_spec); |
| if(processed_body){ | if(processed_body){ |
| // write it out | // write it out |
| r.write_assign_lang(*processed_body); | r.write(*processed_body); |
| // happy with it | // happy with it |
| return; | return; |
| } else { | } else { |
| Line 818 static void _cache(Request& r, MethodPar | Line 830 static void _cache(Request& r, MethodPar |
| // process without caching | // process without caching |
| if(catch_code){ | if(catch_code){ |
| Try_catch_result result=try_catch(r, process_try_body_code, &body_code, catch_code); | Try_catch_result result=try_catch(r, process_try_body_code, &body_code, catch_code); |
| r.write_assign_lang(result.processed_code); | r.write(result.processed_code); |
| } else { | } else { |
| const String& processed_body=r.process_to_string(body_code); | r.write(r.process_to_string(body_code)); |
| r.write_assign_lang(processed_body); | |
| } | } |
| } | } |
| Line 831 static void _try_operator(Request& r, Me | Line 842 static void _try_operator(Request& r, Me |
| 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{ |
| // process try and catch code | |
| result=try_catch(r, process_try_body_code, &body_code, &catch_code); | result=try_catch(r, process_try_body_code, &body_code, &catch_code); |
| } 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(result.processed_code); |
| // write out processed finally code | // write out processed finally code |
| if(finally_code) | r.write(finally_result); |
| r.write_pass_lang(finally_result); | } else { |
| // no exception in try/catch, writing processed body_code or catch_code | |
| r.write(result.processed_code); | |
| } | |
| } | } |
| static void _throw_operator(Request&, MethodParams& params) { | static void _throw_operator(Request&, MethodParams& params) { |
| Line 864 static void _throw_operator(Request&, Me | Line 884 static void _throw_operator(Request&, Me |
| if(Value* value=hash->get(exception_comment_part_name)) | if(Value* value=hash->get(exception_comment_part_name)) |
| comment=value->as_string().cstr(); | comment=value->as_string().cstr(); |
| throw Exception(type, | throw Exception(type, source, "%s", comment); // to avoid MAX_STRING limit |
| source?source:0, | |
| "%s", comment?comment:""); | |
| } else | } else |
| throw Exception(PARSER_RUNTIME, | throw Exception(PARSER_RUNTIME, 0, "one-param version has hash or string param"); |
| 0, | |
| "one-param version has hash or string param"); | |
| } else { | } else { |
| const char* type=params.as_string(0, "type must be string").cstr(); | const char* type=params.as_string(0, "type must be string").cstr(); |
| const String* source=params.count()>1? ¶ms.as_string(1, "source must be string"):0; | const String* source=params.count()>1 ? ¶ms.as_string(1, "source must be string") : 0; |
| const char* comment=params.count()>2? params.as_string(2, "comment must be string").cstr():0; | const char* comment=params.count()>2 ? params.as_string(2, "comment must be string").cstr() : 0; |
| throw Exception(type, source, "%s", comment?comment:""); | throw Exception(type, source, "%s", comment); // to avoid MAX_STRING limit |
| } | } |
| } | } |
| static void _sleep_operator(Request& r, MethodParams& params) { | static void _sleep_operator(Request& r, MethodParams& params) { |
| double seconds=params.as_double(0, "seconds must be double", r); | double seconds=params.as_double(0, "seconds must be double", r); |
| if(seconds>0) | if(seconds>0) |
| pa_sleep((int)trunc(seconds), (int)trunc((seconds-trunc(seconds))*1000000)); | pa_sleep((int)trunc(seconds), (int)trunc((seconds-trunc(seconds))*1000000)); |
| } | } |
| #if defined(WIN32) && defined(_DEBUG) | #if defined(WIN32) && defined(_DEBUG) && !defined(_WIN64) |
| # define PA_BPT | # define PA_BPT |
| static void _bpt(Request&, MethodParams&) { | static void _bpt(Request&, MethodParams&) { |
| _asm int 3; | _asm int 3; |
| Line 894 static void _bpt(Request&, MethodParams& | Line 910 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 930 VClassMAIN::VClassMAIN(): VClass() { | Line 945 VClassMAIN::VClassMAIN(): VClass() { |
| add_native_method("use", Method::CT_ANY, _use, 1, 2); | 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); | |
| // ^return[] | |
| // ^return[result] | |
| add_native_method("return", Method::CT_ANY, _return, 0, 1); | |
| // ^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] |