--- parser3/src/include/pa_request.h 2002/08/29 12:22:46 1.146 +++ parser3/src/include/pa_request.h 2003/02/14 17:33:45 1.160.2.22 @@ -1,16 +1,17 @@ /** @file Parser: request class decl. - Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) + Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com) Author: Alexandr Petrosian (http://paf.design.ru) */ #ifndef PA_REQUEST_H #define PA_REQUEST_H -static const char* IDENT_REQUEST_H="$Date: 2002/08/29 12:22:46 $"; +static const char* IDENT_REQUEST_H="$Date: 2003/02/14 17:33:45 $"; #include "pa_pool.h" +#include "pa_request_info.h" #include "pa_hash.h" #include "pa_wcontext.h" #include "pa_value.h" @@ -25,7 +26,9 @@ static const char* IDENT_REQUEST_H="$Dat #include "pa_vrequest.h" #include "pa_vresponse.h" #include "pa_vcookie.h" -#include "pa_sql_driver_manager.h" +#include "pa_request_info.h" +#include "pa_request_charsets.h" +#include "pa_sapi.h" #ifdef RESOURCES_DEBUG #include @@ -33,67 +36,107 @@ static const char* IDENT_REQUEST_H="$Dat // consts -#define MAIN_METHOD_NAME "main" const uint ANTI_ENDLESS_EXECUTE_RECOURSION=500; // defines #ifndef NO_STRING_ORIGIN # define COMPILE_PARAMS \ - const char *source, \ - VStateless_class *aclass, const String *name, \ - VStateless_class *base_class, \ - const char *file -# define COMPILE(source, aclass, name, base_class, file) \ - real_compile(source, aclass, name, base_class, file) + VStateless_class* aclass, const char* source \ + , const char* file +# define COMPILE(aclass, source, file) \ + real_compile(aclass, source, file) #else # define COMPILE_PARAMS \ - const char *source, \ - VStateless_class *aclass, const String *name, \ - VStateless_class *base_class -# define COMPILE(source, aclass, name, base_class, file) \ - real_compile(source, aclass, name, base_class) + VStateless_class* aclass, const char* source +# define COMPILE(aclass, source, file) \ + real_compile(aclass, source) #endif +// forwards + class Temp_lang; class Methoded; class VMethodFrame; /// Main workhorse. -class Request : public Pooled { +class Request: public PA_Object { friend class Temp_lang; friend class Temp_connection; + friend class Request_context_saver; + friend class Temp_request_self; + + /// all files and classes and other hard-to-place allocations go to this pool + Pool& fpool; + + ///@{ core data + + /// classes + HashStringValue fclasses; + + /// already used files to avoid cyclic uses + Hash used_files; + + /** endless execute(execute(... preventing counter + @see ANTI_ENDLESS_EXECUTE_RECOURSION + */ + uint anti_endless_execute_recoursion; + + ///@} + +public: + + class StackItem { + public: + StringPtr string; + ValuePtr value; + ArrayOperationPtr ops; + void *unknown; + + /// needed to fill unused Array entries + StackItem() {} + StackItem(StringPtr astring): string(astring) {} + StackItem(ValuePtr avalue): value(avalue) {} + StackItem(ArrayOperationPtr aops): ops(aops) {} + StackItem(void *aunknown): unknown(aunknown) {} + }; + + //@{ request processing status + /// exception stack trace + Stack exception_trace; + /// execution stack + Stack stack; + /// contexts + VMethodFrame *method_frame; + Value *rcontext; + WContext *wcontext; + /// current language + uchar flang; + /// current connection + SQL_Connection *fconnection; + //@} + /// interrupted flag, raised on signals [SIGPIPE] + bool finterrupted; + public: + /// all files and classes and other hard-to-place allocations go to this pool + Pool& pool() { return fpool; } + #ifdef RESOURCES_DEBUG /// measures double sql_connect_time; double sql_request_time; #endif - /// some information from web server - class Info { - public: - const char *document_root; - const char *path_translated; - const char *method; - const char *query_string; - const char *uri; - const char *content_type; - size_t content_length; - const char *cookie; - bool mail_received; - }; - - Request(Pool& apool, - Info& ainfo, + Request(Pool& apool, SAPI_Info& asapi_info, Request_info& arequest_info, uchar adefault_lang, ///< all tainted data default untainting lang bool status_allowed ///< status class allowed ); ~Request(); /// global classes - Hash& classes() { return fclasses; } + HashStringValue& classes() { return fclasses; } /** core request processing @@ -101,14 +144,14 @@ public: BEWARE: may throw exception to you: catch it! */ void core( - const char *config_filespec, ///< system config filespec + const char* config_filespec, ///< system config filespec bool config_fail_on_read_problem, ///< fail if system config file not found bool header_only); /// executes ops - void execute(const Array& ops, bool clean_junctions=false); // execute.C + void execute(ArrayOperation& ops); // execute.C /// execute ops with anti-recoursion check - void recoursion_checked_execute(const String *name, const Array& ops) { + void recoursion_checked_execute(StringPtr name, ArrayOperation& ops) { // anti_endless_execute_recoursion if(++anti_endless_execute_recoursion==ANTI_ENDLESS_EXECUTE_RECOURSION) { anti_endless_execute_recoursion=0; // give @exception a chance @@ -116,30 +159,27 @@ public: name, "call canceled - endless recursion detected"); } - // in call & co: clean_junctions - execute(ops, true); // execute it + execute(ops); // execute it anti_endless_execute_recoursion--; } /// compiles the file, maybe forcing it's class @a name and @a base_class. - VStateless_class *use_file( - const String& file_name, - bool ignore_class_path=false, bool fail_on_read_problem=true, - const String *name=0, - VStateless_class *base_class=0); // core.C + VStateless_classPtr use_file(VStateless_class& aclass, + StringPtr file_name, + bool ignore_class_path=false, + bool fail_on_read_problem=true, bool fail_on_file_absence=true); // pa_request.C /// compiles a @a source buffer - VStateless_class *use_buf( - const char *source, const String& filespec, const char *filespec_cstr, - VStateless_class *aclass=0, const String *name=0, - VStateless_class *base_class=0); // core.C + VStateless_classPtr use_buf(VStateless_class& aclass, + const char* source, + StringPtr filespec, const char* filespec_cstr); // pa_request.C /// processes any code-junction there may be inside of @a value - StringOrValue process(Value& input_value, bool intercept_string=true); // execute.C + StringOrValue process(ValuePtr input_value, bool intercept_string=true); // execute.C //@{ convinient helpers - const String& process_to_string(Value& input_value) { - return process(input_value, true/*intercept_string*/).as_string(); + StringPtr process_to_string(ValuePtr input_value) { + return process(input_value, true/*intercept_string*/).as_string(&pool()); } - Value& process_to_value(Value& input_value, bool intercept_string=true) { + ValuePtr process_to_value(ValuePtr input_value, bool intercept_string=true) { return process(input_value, intercept_string).as_value(); } //@} @@ -147,17 +187,17 @@ public: #define DEFINE_DUAL(modification) \ void write_##modification##_lang(StringOrValue dual) { \ - if(const String *string=dual.get_string()) \ + if(StringPtr string=dual.get_string()) \ write_##modification##_lang(*string); \ else \ - write_##modification##_lang(*dual.get_value()); \ + write_##modification##_lang(dual.get_value()); \ } #define DEFINE_DUAL_CHECKED(modification) \ - void write_##modification##_lang(StringOrValue dual, const String *origin) { \ - if(const String *string=dual.get_string()) \ + void write_##modification##_lang(StringOrValue dual, StringPtr origin) { \ + if(StringPtr string=dual.get_string()) \ write_##modification##_lang(*string); \ else \ - write_##modification##_lang(*dual.get_value(), origin); \ + write_##modification##_lang(dual.get_value(), origin); \ } /// appending, sure of clean string inside @@ -166,32 +206,31 @@ public: String::UL_CLEAN | flang&String::UL_OPTIMIZE_BIT); } /// appending sure value, that would be converted to clean string - void write_no_lang(Value& avalue) { + void write_no_lang(ValuePtr avalue) { if(wcontext->get_in_expression()) - wcontext->write(avalue); + wcontext->write(pool(), avalue); else - wcontext->write(avalue, + wcontext->write(pool(), avalue, String::UL_CLEAN | flang&String::UL_OPTIMIZE_BIT); } - //DEFINE_DUAL(no) /// appending string, passing language built into string being written void write_pass_lang(const String& astring) { wcontext->write(astring, String::UL_PASS_APPENDED); } /// appending possible string, passing language built into string being written - void write_pass_lang(Value& avalue) { - wcontext->write(avalue, String::UL_PASS_APPENDED); + void write_pass_lang(ValuePtr avalue) { + wcontext->write(pool(), avalue, String::UL_PASS_APPENDED); } DEFINE_DUAL(pass) /// appending possible string, assigning untaint language - void write_assign_lang(Value& avalue) { - wcontext->write(avalue, flang); + void write_assign_lang(ValuePtr avalue) { + wcontext->write(pool(), avalue, flang); } /// appending possible string, assigning untaint language - void write_assign_lang(Value& avalue, const String *origin) { - wcontext->write(avalue, flang, origin); + void write_assign_lang(ValuePtr avalue, StringPtr origin) { + wcontext->write(pool(), avalue, flang, origin); } /// appending string, assigning untaint language void write_assign_lang(const String& astring) { @@ -201,16 +240,16 @@ public: DEFINE_DUAL_CHECKED(assign) /// returns relative to @a path path to @a file - const String& relative(const char *apath, const String& relative_name); + StringPtr relative(const char* apath, StringPtr relative_name); /// returns an absolute @a path to relative @a name - const String& absolute(const String& relative_name); + StringPtr absolute(StringPtr relative_name); /// returns the mime type of 'user_file_name_cstr' - const String& mime_type_of(const char *user_file_name_cstr); + StringPtr mime_type_of(const char* user_file_name_cstr); /// returns current SQL connection if any - SQL_Connection *connection(const String *source) { + SQL_Connection *connection(StringPtr source) { if(!fconnection && source) throw Exception("parser.runtime", source, @@ -219,76 +258,66 @@ public: return fconnection; } - bool origins_mode() { - return main_class->get_element(*origins_mode_name, main_class, false)!=0; // $ORIGINS mode - } + bool origins_mode(); + + void interrupt() { finterrupted=true; } + bool interrupted() { return finterrupted; } public: /// info from web server - Info& info; - /// user's post data - const char *post_data; size_t post_size; + Request_info& request_info; - /// name of 'main' method - const String main_method_name; - - /// operators are methods of this class - Methoded& OP; + /// info about ServerAPI + SAPI_Info& sapi_info; + + /// source, client, mail charsets + Request_charsets charsets; + + /// 'MAIN' class conglomerat & operators are methods of this class + VStateless_classPtr main_class; /// $env:fields - VEnv env; + //VEnv env; /// $status:fields - VStatus status; + //VStatus status; /// $form:elements - VForm form; + VFormPtr form; /// $mail - VMail mail; + VMailPtr mail; /// $math:constants - VMath math; + //VMath math; /// $request:elements - VRequest request; + //VRequest request; /// $response:elements - VResponse response; + VResponsePtr response; /// $cookie:elements - VCookie cookie; - - //@{ request processing status - /// execution stack - Stack stack; - /// contexts - Value *self; - VMethodFrame *method_frame; - Value *rcontext; - WContext *wcontext; - /// exception stack trace - Stack exception_trace; - //@} - - /// 'MAIN' class conglomerat - VStateless_class *main_class; + VCookiePtr cookie; /// classes configured data - Hash classes_conf; - -private: // core data + HashStringObject classes_conf; - /// classes - Hash fclasses; +public: // status read methods - /// already used files to avoid cyclic uses - Hash used_files; + VMethodFrame *get_method_frame() { return method_frame; } + ValuePtr get_self(); +#define GET_SELF(request, type) (*static_cast(request.get_self().get())) + /* for strange reason call to this: + r.get_self() + refuses to compile - /** endless execute(execute(... preventing counter - @see ANTI_ENDLESS_EXECUTE_RECOURSION + template T& get_self() { + return *static_cast(get_self().get()); + } */ - uint anti_endless_execute_recoursion; + + private: /// already executed some @conf method bool configure_admin_done; - void configure_admin(VStateless_class& conf_class, const String *source); + void configure_admin(VStateless_class& conf_class, StringPtr source); private: // compile.C @@ -297,20 +326,20 @@ private: // compile.C private: // execute.C /// for @postprocess[body] - const String& execute_method(VMethodFrame& amethodFrame, const Method& method); + StringPtr execute_method(VMethodFrame& amethodFrame, const Method& method); //{ for @conf[filespec] and @auto[filespec] - void execute_method(Value& aself, - const Method& method, VString *optional_param, - const String **return_string); - void execute_nonvirtual_method(VStateless_class& aclass, - const String& method_name, VString *optional_param, - const String **return_string, + StringPtr execute_method(ValuePtr aself, + const Method& method, VStringPtr optional_param, + bool do_return_string); + StringPtr execute_nonvirtual_method(VStateless_class& aclass, + StringPtr method_name, VStringPtr optional_param, + bool do_return_string, const Method **return_method=0); //} /// for @main[] - const String *execute_virtual_method(Value& aself, const String& method_name); + StringPtr execute_virtual_method(ValuePtr aself, StringPtr method_name); - Value *get_element(const String *& remember_name, bool can_call_operator); + ValuePtr get_element(StringPtr& remember_name, bool can_call_operator); private: // defaults @@ -333,11 +362,6 @@ private: // lang manipulation flang=alang; } -private: // lang&raw - - uchar flang; - - private: // connection manipulation SQL_Connection *set_connection(SQL_Connection *aconnection) { @@ -351,18 +375,51 @@ private: // connection manipulation private: - /// connection + void output_result(VFilePtr body_file, bool header_only, bool as_attachment); +}; + +/// Auto-object used to save request context across ^try body +class Request_context_saver { + Request& fr; + + /// exception stack trace + int exception_trace; + /// execution stack + int stack; + /// contexts + VMethodFrame *method_frame; + Value *rcontext; + WContext *wcontext; + /// current language + uchar flang; + /// current connection SQL_Connection *fconnection; - void output_result(const VFile& body_file, bool header_only); +public: + Request_context_saver(Request& ar) : + exception_trace(ar.exception_trace.top_index()), + stack(ar.stack.top_index()), + method_frame(ar.method_frame), + rcontext(ar.rcontext), + wcontext(ar.wcontext), + flang(ar.flang), + fconnection(ar.fconnection), + fr(ar) {} + void restore() { + fr.exception_trace.top_index(exception_trace); + fr.stack.top_index(stack); + fr.method_frame=method_frame, fr.rcontext=rcontext; fr.wcontext=wcontext; + fr.flang=flang; + fr.fconnection=fconnection; + } }; /// Auto-object used for temporary changing Request::flang. class Temp_lang { Request& frequest; - uchar saved_lang; + String_UL saved_lang; public: - Temp_lang(Request& arequest, uchar alang) : + Temp_lang(Request& arequest, String_UL alang) : frequest(arequest), saved_lang(arequest.set_lang(alang)) { } @@ -385,67 +442,25 @@ public: } }; -/** - @b method parameters passed in this array. - contains handy typecast ad junction/not junction ensurers - -*/ -class MethodParams : public Array { -public: - MethodParams(Pool& pool, const String& amethod_name) : Array(pool), - fmethod_name(amethod_name) { - } - - /// handy typecast. I long for templates - Value& get(int index) { - return *static_cast(Array::get(index)); - } - /// handy is-value-a-junction ensurer - Value& as_junction(int index, const char *msg) { - return get_as(index, true, msg); - } - /// handy value-is-not-a-junction ensurer - Value& as_no_junction(int index, const char *msg) { - return get_as(index, false, msg); - } - /// handy expression auto-processing to double - double as_double(int index, const char *msg, Request& r) { - return get_processed(index, msg, r).as_double(); - } - /// handy expression auto-processing to int - int as_int(int index, const char *msg, Request& r) { - return get_processed(index, msg, r).as_int(); - } - /// handy expression auto-processing to bool - bool as_bool(int index, const char *msg, Request& r) { - return get_processed(index, msg, r).as_bool(); - } - /// handy string ensurer - const String& as_string(int index, const char *msg) { - return as_no_junction(index, msg).as_string(); - } - -private: - /// handy value-is/not-a-junction ensurer - Value& get_as(int index, bool as_junction, const char *msg) { - Value& result=get(index); - if((result.get_junction()!=0) ^ as_junction) - throw Exception("parser.runtime", - &fmethod_name, - "%s (parameter #%d)", msg, 1+index); +// defines for externs - return result; - } +#define CONTENT_DISPOSITION_NAME "content-disposition" +#define CONTENT_DISPOSITION_VALUE "attachment" +#define CONTENT_DISPOSITION_FILENAME_NAME "filename" - Value& get_processed(int index, const char *msg, Request& r) { - return r.process_to_value(as_junction(index, msg), 0/*no name*/); - } +// externs -private: +extern StringPtr main_method_name; +extern StringPtr auto_method_name; +extern StringPtr body_name; +extern StringPtr content_disposition_name; +extern StringPtr content_disposition_value; +extern StringPtr content_disposition_filename_name; - const String& fmethod_name; +// defines for statics -}; +#define MAIN_CLASS_NAME "MAIN" +#define AUTO_FILE_NAME "auto.p" #endif