--- parser3/src/include/pa_request.h 2016/07/20 16:36:48 1.224 +++ parser3/src/include/pa_request.h 2023/11/17 19:12:34 1.263 @@ -1,14 +1,14 @@ /** @file Parser: request class decl. - Copyright (c) 2001-2015 Art. Lebedev Studio (http://www.artlebedev.com) - Author: Alexandr Petrosian (http://paf.design.ru) + Copyright (c) 2001-2023 Art. Lebedev Studio (http://www.artlebedev.com) + Authors: Konstantin Morshnev , Alexandr Petrosian */ #ifndef PA_REQUEST_H #define PA_REQUEST_H -#define IDENT_PA_REQUEST_H "$Id: pa_request.h,v 1.224 2016/07/20 16:36:48 moko Exp $" +#define IDENT_PA_REQUEST_H "$Id: pa_request.h,v 1.263 2023/11/17 19:12:34 moko Exp $" #include "pa_pool.h" #include "pa_hash.h" @@ -19,9 +19,28 @@ #include "pa_request_charsets.h" #include "pa_sapi.h" +// defines for externs + +#define EXCEPTION_HANDLED_PART_NAME "handled" + + +// externs + +extern const String main_method_name; +extern const String auto_method_name; + +extern const String exception_type_part_name; +extern const String exception_source_part_name; +extern const String exception_comment_part_name; +extern const String exception_handled_part_name; + +// defines for statics + +#define MAIN_CLASS_NAME "MAIN" +#define AUTO_FILE_NAME "auto.p" + // consts -const uint ANTI_ENDLESS_EXECUTE_RECOURSION=1000; const size_t pseudo_file_no__process=1; // forwards @@ -36,6 +55,11 @@ class VCookie; class VStateless_class; class VConsole; +extern int pa_loop_limit; +extern int pa_execute_recoursion_limit; +extern int pa_httpd_timeout; +extern size_t pa_file_size_limit; + /// Main workhorse. class Request: public PA_Object { friend class Temp_lang; @@ -62,8 +86,10 @@ public: enum Skip { SKIP_NOTHING, + SKIP_CONTINUE, SKIP_BREAK, - SKIP_CONTINUE + SKIP_RETURN, + SKIP_INTERRUPTED }; private: @@ -84,9 +110,7 @@ private: ArrayOperation& ops() const { return *fops; } VMethodFrame& method_frame() const { return *fmethod_frame; } - /// needed to fill unused Array entries - StackItem() {} - StackItem(Value& avalue): fvalue(&avalue) {} + StackItem(Value& avalue): fvalue(&avalue) {} StackItem(ArrayOperation& aops): fops(&aops) {} StackItem(VMethodFrame& amethod_frame): fmethod_frame(&amethod_frame) {} }; @@ -107,6 +131,8 @@ private: bool is_empty() { return fused==fbottom; } + + Table &table(Request &r); }; ///@{ core data @@ -120,10 +146,8 @@ private: /// list of all used files, Operation::file_no = index to it Array file_list; - /** endless execute(execute(... preventing counter - @see ANTI_ENDLESS_EXECUTE_RECOURSION - */ - uint anti_endless_execute_recoursion; + /// endless execute(execute(... preventing counter + int anti_endless_execute_recoursion; ///@} @@ -142,14 +166,16 @@ public: Value* rcontext; WContext* wcontext; /// current language - String::Language flang; + String::Language flang; /// current connection SQL_Connection* fconnection; //@} - /// interrupted flag, raised on signals [SIGPIPE] - bool finterrupted; - Skip fskip; + +private: + int fin_cycle; + Skip fskip; + VMethodFrame* freturn_method_frame; public: uint register_file(String::Body file_spec); @@ -182,116 +208,102 @@ public: /// global classes HashString& classes() { return fclasses; } VStateless_class* get_class(const String& name); + VStateless_class& get_class_ref(const String& name); void put_class(VStateless_class *aclass){ classes().put(aclass->type(), aclass); } /** core request processing - BEWARE: may throw exception to you: catch it! */ - void core( - const char* config_filespec, ///< system config filespec - bool config_fail_on_read_problem, ///< fail if system config file not found - bool header_only); + void core(const char* config_filespec, bool header_only, const String& amain_method_name = main_method_name, const String* amain_class_name = NULL); /// executes ops void execute(ArrayOperation& ops); // execute.C - void op_call(VMethodFrame &frame); - void op_call_write(VMethodFrame &frame); - Value& construct(Value &class_value, const Method &method); + + template void call(Frame& frame){ + VMethodFrame *saved_method_frame=method_frame; + Value* saved_rcontext=rcontext; + WContext *saved_wcontext=wcontext; + + rcontext=wcontext=method_frame=&frame; + + frame.call(*this); + + wcontext=saved_wcontext; + rcontext=saved_rcontext; + method_frame=saved_method_frame; + } + + template void call_write(Frame& frame){ + VMethodFrame *saved_method_frame=method_frame; + Value* saved_rcontext=rcontext; + + rcontext=method_frame=&frame; + + frame.call(*this); + + rcontext=saved_rcontext; + method_frame=saved_method_frame; + } + + Value& construct(VStateless_class &class_value, const Method &method); /// execute ops with anti-recoursion check - void recoursion_checked_execute(/*const String& name, */ArrayOperation& ops) { - // anti_endless_execute_recoursion - if(++anti_endless_execute_recoursion==ANTI_ENDLESS_EXECUTE_RECOURSION) { + void recoursion_checked_execute(ArrayOperation& ops) { + if(++anti_endless_execute_recoursion==pa_execute_recoursion_limit) { anti_endless_execute_recoursion=0; // give @exception a chance - throw Exception(PARSER_RUNTIME, - 0, //&name, - "call canceled - endless recursion detected"); + throw Exception(PARSER_RUNTIME, 0, "call canceled - endless recursion detected"); } execute(ops); // execute it anti_endless_execute_recoursion--; } /// - void use_file_directly(VStateless_class& aclass, - const String& file_spec, - bool fail_on_read_problem=true, - bool fail_on_file_absence=true); - - /// compiles the file, maybe forcing it's class @a name and @a base_class. - void use_file(VStateless_class& aclass, const String& file_name, const String* use_filespec); - void use_file(VStateless_class& aclass, const String& file_name, const String* use_filespec, Operation::Origin origin); + void use_file_directly(const String& file_spec, bool fail_on_file_absence=true, bool with_auto_p=false); + + /// compiles the file in main class context by default + void use_file(const String& file_name, const String* use_filespec, bool with_auto_p=false); + + /// for @USE only, calls ^use (which may be user-defined) + void use_file(const String& file_name, const String* use_filespec, Operation::Origin origin); /// compiles a @a source buffer - void use_buf(VStateless_class& aclass, - const char* source, - const String* main_alias, - uint file_no, - int line_no_offset=0); + void use_buf(VStateless_class& aclass, const char* source, const String* main_alias, uint file_no, int line_no_offset=0); /// processes any code-junction there may be inside of @a value - StringOrValue process_getter(Junction& junction); // execute.C - StringOrValue process(Value& input_value, bool intercept_string=true); // execute.C + Value& process_getter(Junction& junction); // execute.C + Value& process(Value& input_value); // execute.C void process_write(Value& input_value); // execute.C + //@{ convinient helpers const String& process_to_string(Value& input_value) { - return process(input_value, true/*intercept_string*/).as_string(); - } - Value& process_to_value(Value& input_value, bool intercept_string=true) { - return process(input_value, intercept_string).as_value(); + return process(input_value).as_string(); } //@} - const String* get_method_filename(const Method* method); // execute.C - const String* get_used_filename(uint file_no); + const Operation::Origin get_method_origin(const Method* method); // execute.C + const String* get_method_filespec(const Method* method); // execute.C + const String* get_used_filespec(uint file_no); -#define DEFINE_DUAL(modification) \ - void write_##modification##_lang(StringOrValue dual) { \ - if(const String* string=dual.get_string()) \ - write_##modification##_lang(*string); \ - else \ - write_##modification##_lang(*dual.get_value()); \ - } - - /// appending, sure of clean string inside - void write_no_lang(const String& astring) { - wcontext->write(astring, - (String::Language)(String::L_CLEAN | (flang & String::L_OPTIMIZE_BIT) )); - } - /// appending sure value, that would be converted to clean string - void write_no_lang(Value& avalue) { - if(wcontext->get_in_expression()) - wcontext->write(avalue); - else - wcontext->write(avalue, - (String::Language)(String::L_CLEAN | (flang & String::L_OPTIMIZE_BIT) )); - } - - /// appending string, passing language built into string being written - void write_pass_lang(const String& astring) { - wcontext->write(astring, String::L_PASS_APPENDED); - } - /// appending possible string, passing language built into string being written - void write_pass_lang(Value& avalue) { - wcontext->write(avalue, String::L_PASS_APPENDED); - } - DEFINE_DUAL(pass) - - /// appending possible string, assigning untaint language - void write_assign_lang(Value& avalue) { - wcontext->write(avalue, flang); - } - /// appending string, assigning untaint language - void write_assign_lang(const String& astring) { - wcontext->write(astring, flang); + /// appending string with it's languages + inline void write(const String& astring) { + wcontext->write(astring); + } + + /// in [] and {} appending string if get_string is not null, else appending value + /// in () appending string if is_string, else appending value + inline void write(Value& avalue) { + wcontext->write_as_string(avalue); + } + + /// allways appending value + inline void write_value(Value& avalue) { + wcontext->write(avalue); } - DEFINE_DUAL(assign) /// returns relative to @a path path to @a file const String& relative(const char* apath, const String& relative_name); - /// returns an absolute @a path to relative @a name - const String& absolute(const String& relative_name); + const String& full_disk_path(const String& relative_name); /// returns the mime type of 'user_file_name' const String& mime_type_of(const String* file_name); @@ -300,20 +312,17 @@ public: const String& mime_type_of(const char* user_file_name_cstr); /// returns current SQL connection if any - SQL_Connection* connection(bool fail_on_error=true) { + SQL_Connection* connection(bool fail_on_error=true) { if(fail_on_error && !fconnection) - throw Exception(PARSER_RUNTIME, - 0, - "outside of 'connect' operator"); - - return fconnection; + throw Exception(PARSER_RUNTIME, 0, "outside of 'connect' operator"); + return fconnection; } - void set_interrupted(bool ainterrupted) { finterrupted=ainterrupted; } - bool get_interrupted() { return finterrupted; } - - void set_skip(Skip askip) { fskip=askip; } Skip get_skip() { return fskip; } + void set_skip(Skip askip) { fskip=askip; } + void set_skip_return(VMethodFrame& amethod_frame) { fskip=SKIP_RETURN; freturn_method_frame=&amethod_frame; } + inline bool check_skip_break() { bool result=fskip >= SKIP_BREAK; if(fskip <= SKIP_BREAK) fskip=SKIP_NOTHING; return result; } + inline void check_skip_return() { if(fskip==SKIP_RETURN && method_frame==freturn_method_frame) fskip=SKIP_NOTHING; } void set_in_cycle(int adelta) { fin_cycle+=adelta; } bool get_in_cycle() { return fin_cycle>0; } @@ -349,38 +358,19 @@ public: // status read methods VMethodFrame *get_method_frame() { return method_frame; } Value& get_self(); -#define GET_SELF(request, type) (static_cast(request.get_self())) - /* for strange reason call to this: - r.get_self() - refuses to compile - template T& get_self() { - return *static_cast(get_self().get()); - } - */ +#define GET_SELF(request, type) (static_cast(request.get_self())) /// public for ^reflection:copy[] void put_element(Value& ncontext, const String& name, Value* value); - /// for @main[] - const String* execute_virtual_method(Value& aself, const String& method_name); + /// for @main[] and parser://method/call + const String* execute_method(VStateless_class& aclass, const String& method_name, Value* optional_param = 0); - /// executes parser method, use op_call(frame) to execute native method - void execute_method(VMethodFrame& aframe); + //{ for @conf[filespec] and @auto[filespec] + bool execute_method_if_exists(VStateless_class& aclass, const String& method_name, Value* optional_param); + bool execute_auto_method_if_exists(VStateless_class& aclass, const String& method_name, Value* optional_param); - //{ for @conf[filespec] and @auto[filespec] and parser://method/call - const String* execute_method(Value& aself, - const Method& method, Value* optional_param, - bool do_return_string); - struct Execute_nonvirtual_method_result { - const String* string; - Method* method; - Execute_nonvirtual_method_result(): string(0), method(0) {} - }; - Execute_nonvirtual_method_result execute_nonvirtual_method(VStateless_class& aclass, - const String& method_name, - VString* optional_param, - bool do_return_string); //} #ifdef XML @@ -406,10 +396,7 @@ private: private: // compile.C - ArrayClass& compile(VStateless_class* aclass, - const char* source, const String* main_alias, - uint file_no, - int line_no_offset); + ArrayClass& compile(VStateless_class* aclass, const char* source, const String* main_alias, uint file_no, int line_no_offset); private: // execute.C @@ -427,17 +414,6 @@ private: // mime types /// $MAIN:MIME-TYPES Table *mime_types; -private: // lang manipulation - - String::Language set_lang(String::Language alang) { - String::Language result=flang; - flang=alang; - return result; - } - void restore_lang(String::Language alang) { - flang=alang; - } - private: // connection manipulation SQL_Connection* set_connection(SQL_Connection* aconnection) { @@ -474,10 +450,10 @@ class Request_context_saver { SQL_Connection* fconnection; public: - Request_context_saver(Request& ar) : + Request_context_saver(Request& ar) : fr(ar), - exception_trace_top(ar.exception_trace.top_index()), - exception_trace_bottom(ar.exception_trace.bottom_index()), + exception_trace_top(ar.exception_trace.top_index()), + exception_trace_bottom(ar.exception_trace.bottom_index()), stack(ar.stack.top_index()), anti_endless_execute_recoursion(ar.anti_endless_execute_recoursion), method_frame(ar.method_frame), @@ -496,30 +472,16 @@ public: } }; -/// Auto-object used for temporary changing Request::flang. -class Temp_lang { - Request& frequest; - String::Language saved_lang; -public: - Temp_lang(Request& arequest, String::Language alang) : - frequest(arequest), - saved_lang(arequest.set_lang(alang)) { - } - ~Temp_lang() { - frequest.restore_lang(saved_lang); - } -}; - /// Auto-object used for temporary changing Request::fconnection. class Temp_connection { Request& frequest; SQL_Connection* saved_connection; public: - Temp_connection(Request& arequest, SQL_Connection* aconnection) : + Temp_connection(Request& arequest, SQL_Connection* aconnection) : frequest(arequest), saved_connection(arequest.set_connection(aconnection)) { } - ~Temp_connection() { + ~Temp_connection() { frequest.restore_connection(saved_connection); } }; @@ -531,11 +493,28 @@ public: InCycle(Request& arequest) : frequest(arequest) { frequest.set_in_cycle(1); } - ~InCycle() { + ~InCycle() { frequest.set_in_cycle(-1); } }; +/// Auto-object used for break out of cycle check +class TempSkip4Delimiter { + Request& frequest; + Request::Skip fskip; +public: + TempSkip4Delimiter(Request& arequest) : frequest(arequest), fskip(arequest.get_skip()) { + frequest.set_skip(Request::SKIP_NOTHING); + } + // returns true if break required, should be called + bool check_break() { + if(frequest.get_skip()) + fskip=frequest.get_skip(); + frequest.set_skip(fskip <= Request::SKIP_BREAK ? Request::SKIP_NOTHING : fskip); + return fskip >= Request::SKIP_BREAK; + } +}; + /// Auto-object used for temporary changing Request::allow_class_replace. class Temp_class_replace { Request& frequest; @@ -559,24 +538,4 @@ public: ~Temp_value_element(); }; -// defines for externs - -#define EXCEPTION_HANDLED_PART_NAME "handled" - - -// externs - -extern const String main_method_name; -extern const String auto_method_name; - -extern const String exception_type_part_name; -extern const String exception_source_part_name; -extern const String exception_comment_part_name; -extern const String exception_handled_part_name; - -// defines for statics - -#define MAIN_CLASS_NAME "MAIN" -#define AUTO_FILE_NAME "auto.p" - #endif