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version 1.142, 2002/08/01 11:41:15
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version 1.263, 2023/11/17 19:12:34
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| /** @file |
/** @file |
| Parser: request class decl. |
Parser: request class decl. |
| |
|
| Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) |
Copyright (c) 2001-2023 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> |
| */ |
*/ |
| |
|
| #ifndef PA_REQUEST_H |
#ifndef PA_REQUEST_H |
| #define PA_REQUEST_H |
#define PA_REQUEST_H |
| |
|
| static const char* IDENT_REQUEST_H="$Date$"; |
#define IDENT_PA_REQUEST_H "$Id$" |
| |
|
| #include "pa_pool.h" |
#include "pa_pool.h" |
| #include "pa_hash.h" |
#include "pa_hash.h" |
| #include "pa_wcontext.h" |
#include "pa_wcontext.h" |
| #include "pa_value.h" |
#include "pa_value.h" |
| #include "pa_stack.h" |
#include "pa_stack.h" |
| #include "pa_vclass.h" |
#include "pa_request_info.h" |
| #include "pa_vobject.h" |
#include "pa_request_charsets.h" |
| #include "pa_venv.h" |
#include "pa_sapi.h" |
| #include "pa_vstatus.h" |
|
| #include "pa_vform.h" |
|
| #include "pa_vmail.h" |
|
| #include "pa_vmath.h" |
|
| #include "pa_vrequest.h" |
|
| #include "pa_vresponse.h" |
|
| #include "pa_vcookie.h" |
|
| #include "pa_sql_driver_manager.h" |
|
| |
|
| #ifdef RESOURCES_DEBUG |
// defines for externs |
| #include <sys/resource.h> |
|
| #endif |
|
| |
|
| // consts |
#define EXCEPTION_HANDLED_PART_NAME "handled" |
| |
|
| #define MAIN_METHOD_NAME "main" |
|
| const uint ANTI_ENDLESS_EXECUTE_RECOURSION=500; |
|
| |
|
| // defines |
// externs |
| |
|
| #ifndef NO_STRING_ORIGIN |
extern const String main_method_name; |
| # define COMPILE_PARAMS \ |
extern const String auto_method_name; |
| const char *source, \ |
|
| VStateless_class *aclass, const String *name, \ |
extern const String exception_type_part_name; |
| VStateless_class *base_class, \ |
extern const String exception_source_part_name; |
| const char *file |
extern const String exception_comment_part_name; |
| # define COMPILE(source, aclass, name, base_class, file) \ |
extern const String exception_handled_part_name; |
| real_compile(source, aclass, name, base_class, file) |
|
| #else |
// defines for statics |
| # define COMPILE_PARAMS \ |
|
| const char *source, \ |
#define MAIN_CLASS_NAME "MAIN" |
| VStateless_class *aclass, const String *name, \ |
#define AUTO_FILE_NAME "auto.p" |
| VStateless_class *base_class |
|
| # define COMPILE(source, aclass, name, base_class, file) \ |
// consts |
| real_compile(source, aclass, name, base_class) |
|
| #endif |
const size_t pseudo_file_no__process=1; |
| |
|
| |
// forwards |
| |
|
| class Temp_lang; |
class Temp_lang; |
| class Methoded; |
class Methoded; |
| class VMethodFrame; |
class VMethodFrame; |
| |
class VMail; |
| |
class VForm; |
| |
class VResponse; |
| |
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. |
/// Main workhorse. |
| class Request : public Pooled { |
class Request: public PA_Object { |
| friend class Temp_lang; |
friend class Temp_lang; |
| friend class Temp_connection; |
friend class Temp_connection; |
| |
friend class Temp_request_self; |
| |
friend class Temp_value_element; |
| |
friend class Request_context_saver; |
| |
friend class Exception_trace; |
| |
|
| |
public: |
| |
class Trace { |
| |
const String* fname; |
| |
Operation::Origin forigin; |
| |
public: |
| |
Trace(): fname(0) {} |
| |
void clear() { fname=0; } |
| |
|
| |
Trace(const String* aname, const Operation::Origin aorigin): |
| |
fname(aname), forigin(aorigin) {} |
| |
|
| |
const String* name() const { return fname; } |
| |
const Operation::Origin origin() const { return forigin; } |
| |
}; |
| |
|
| |
enum Skip { |
| |
SKIP_NOTHING, |
| |
SKIP_CONTINUE, |
| |
SKIP_BREAK, |
| |
SKIP_RETURN, |
| |
SKIP_INTERRUPTED |
| |
}; |
| |
|
| |
private: |
| |
Pool fpool; |
| |
public: |
| |
Pool& pool() { return fpool; } |
| |
|
| |
private: |
| |
union StackItem { |
| |
Value* fvalue; |
| |
ArrayOperation* fops; |
| |
VMethodFrame* fmethod_frame; |
| |
public: |
| |
Value& value() const { return *fvalue; } |
| |
const String& string() const { |
| |
return fvalue->as_string(); |
| |
} |
| |
ArrayOperation& ops() const { return *fops; } |
| |
VMethodFrame& method_frame() const { return *fmethod_frame; } |
| |
|
| |
StackItem(Value& avalue): fvalue(&avalue) {} |
| |
StackItem(ArrayOperation& aops): fops(&aops) {} |
| |
StackItem(VMethodFrame& amethod_frame): fmethod_frame(&amethod_frame) {} |
| |
}; |
| |
|
| |
class Exception_trace: public Stack<Trace> { |
| |
size_t fbottom; |
| |
public: |
| |
Exception_trace(): fbottom(0) {} |
| |
|
| |
size_t bottom_index() { return fbottom; } |
| |
void set_bottom_index(size_t abottom) { fbottom=abottom; } |
| |
element_type bottom_value() { return get(bottom_index()); } |
| |
|
| |
void clear() { |
| |
fused=fbottom=0; |
| |
} |
| |
|
| |
bool is_empty() { |
| |
return fused==fbottom; |
| |
} |
| |
|
| |
Table &table(Request &r); |
| |
}; |
| |
|
| |
///@{ core data |
| |
|
| |
/// classes |
| |
HashString<VStateless_class*> fclasses; |
| |
|
| |
/// already used files to avoid cyclic uses |
| |
HashString<bool> used_files; |
| |
HashString<bool> searched_along_class_path; |
| |
/// list of all used files, Operation::file_no = index to it |
| |
Array<String::Body> file_list; |
| |
|
| |
/// endless execute(execute(... preventing counter |
| |
int anti_endless_execute_recoursion; |
| |
|
| |
///@} |
| |
|
| |
/// execution stack |
| |
Stack<StackItem> stack; |
| |
|
| |
/// exception stack trace |
| |
Exception_trace exception_trace; |
| public: |
public: |
| |
|
| |
bool allow_class_replace; |
| |
|
| |
//@{ request processing status |
| |
/// contexts |
| |
VMethodFrame* method_frame; |
| |
Value* rcontext; |
| |
WContext* wcontext; |
| |
/// current language |
| |
String::Language flang; |
| |
/// current connection |
| |
SQL_Connection* fconnection; |
| |
//@} |
| |
|
| |
private: |
| |
|
| |
int fin_cycle; |
| |
Skip fskip; |
| |
VMethodFrame* freturn_method_frame; |
| |
|
| |
public: |
| |
uint register_file(String::Body file_spec); |
| |
|
| |
struct Exception_details { |
| |
const Operation::Origin origin; |
| |
const String* problem_source; |
| |
VHash& vhash; |
| |
Exception_details(const Operation::Origin aorigin, const String* aproblem_source, VHash& avhash): origin(aorigin), problem_source(aproblem_source), vhash(avhash) {} |
| |
}; |
| |
Exception_details get_details(const Exception& e); |
| |
const char* get_exception_cstr(const Exception& e, Exception_details& details); |
| |
|
| |
/// @see Stack::wipe_unused |
| |
void wipe_unused_execution_stack() { |
| |
stack.wipe_unused(); |
| |
} |
| |
|
| #ifdef RESOURCES_DEBUG |
#ifdef RESOURCES_DEBUG |
| /// measures |
/// measures |
| double sql_connect_time; |
double sql_connect_time; |
| double sql_request_time; |
double sql_request_time; |
| #endif |
#endif |
| |
|
| /// some information from web server |
Request(SAPI_Info& asapi_info, Request_info& arequest_info, |
| class Info { |
String::Language adefault_lang ///< all tainted data default untainting lang |
| 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, |
|
| uchar adefault_lang, ///< all tainted data default untainting lang |
|
| bool status_allowed ///< status class allowed |
|
| ); |
); |
| ~Request(); |
~Request(); |
| |
|
| /// global classes |
/// global classes |
| Hash& classes() { return fclasses; } |
HashString<VStateless_class*>& 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 |
core request processing |
| |
|
| BEWARE: may throw exception to you: catch it! |
BEWARE: may throw exception to you: catch it! |
| */ |
*/ |
| void core( |
void core(const char* config_filespec, bool header_only, const String& amain_method_name = main_method_name, const String* amain_class_name = NULL); |
| 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 |
/// executes ops |
| void execute(const Array& ops); // execute.C |
void execute(ArrayOperation& ops); // execute.C |
| |
|
| |
template<typename Frame> 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<typename Frame> 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 |
/// execute ops with anti-recoursion check |
| void recoursion_checked_execute(const String *name, const Array& ops) { |
void recoursion_checked_execute(ArrayOperation& ops) { |
| // anti_endless_execute_recoursion |
if(++anti_endless_execute_recoursion==pa_execute_recoursion_limit) { |
| if(++anti_endless_execute_recoursion==ANTI_ENDLESS_EXECUTE_RECOURSION) { |
|
| anti_endless_execute_recoursion=0; // give @exception a chance |
anti_endless_execute_recoursion=0; // give @exception a chance |
| throw Exception("parser.runtime", |
throw Exception(PARSER_RUNTIME, 0, "call canceled - endless recursion detected"); |
| name, |
|
| "call canceled - endless recursion detected"); |
|
| } |
} |
| execute(ops); // execute it |
execute(ops); // execute it |
| anti_endless_execute_recoursion--; |
anti_endless_execute_recoursion--; |
| } |
} |
| |
|
| /// compiles the file, maybe forcing it's class @a name and @a base_class. |
/// |
| VStateless_class *use_file( |
void use_file_directly(const String& file_spec, bool fail_on_file_absence=true, bool with_auto_p=false); |
| const String& file_name, |
|
| bool ignore_class_path=false, bool fail_on_read_problem=true, |
/// compiles the file in main class context by default |
| const String *name=0, |
void use_file(const String& file_name, const String* use_filespec, bool with_auto_p=false); |
| VStateless_class *base_class=0); // core.C |
|
| |
/// 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 |
/// compiles a @a source buffer |
| VStateless_class *use_buf( |
void use_buf(VStateless_class& aclass, const char* source, const String* main_alias, uint file_no, int line_no_offset=0); |
| 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 |
|
| |
|
| /// processes any code-junction there may be inside of @a value |
/// processes any code-junction there may be inside of @a value |
| 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 |
//@{ convinient helpers |
| const String& process_to_string(Value& input_value) { |
const String& process_to_string(Value& input_value) { |
| return process(input_value, true/*intercept_string*/).as_string(); |
return process(input_value).as_string(); |
| } |
|
| Value& process_to_value(Value& input_value, bool intercept_string=true) { |
|
| return process(input_value, intercept_string).as_value(); |
|
| } |
} |
| //@} |
//@} |
| |
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); |
| |
|
| |
/// appending string with it's languages |
| |
inline void write(const String& astring) { |
| |
wcontext->write(astring); |
| |
} |
| |
|
| #define DEFINE_DUAL(modification) \ |
/// in [] and {} appending string if get_string is not null, else appending value |
| void write_##modification##_lang(StringOrValue dual) { \ |
/// in () appending string if is_string, else appending value |
| if(const String *string=dual.get_string()) \ |
inline void write(Value& avalue) { |
| write_##modification##_lang(*string); \ |
wcontext->write_as_string(avalue); |
| else \ |
} |
| write_##modification##_lang(*dual.get_value()); \ |
|
| } |
/// allways appending value |
| #define DEFINE_DUAL_CHECKED(modification) \ |
inline void write_value(Value& avalue) { |
| void write_##modification##_lang(StringOrValue dual, const String *origin) { \ |
wcontext->write(avalue); |
| if(const String *string=dual.get_string()) \ |
|
| write_##modification##_lang(*string); \ |
|
| else \ |
|
| write_##modification##_lang(*dual.get_value(), origin); \ |
|
| } |
|
| |
|
| /// appending, sure of clean string inside |
|
| void write_no_lang(const String& astring) { |
|
| wcontext->write(astring, |
|
| String::UL_CLEAN | flang&String::UL_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::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); |
|
| } |
|
| DEFINE_DUAL(pass) |
|
| |
|
| /// appending possible string, assigning untaint language |
|
| void write_assign_lang(Value& avalue) { |
|
| wcontext->write(avalue, flang); |
|
| } |
|
| /// appending possible string, assigning untaint language |
|
| void write_assign_lang(Value& avalue, const String *origin) { |
|
| wcontext->write(avalue, flang, origin); |
|
| } |
|
| /// appending string, assigning untaint language |
|
| void write_assign_lang(const String& astring) { |
|
| wcontext->write(astring, flang); |
|
| } |
} |
| DEFINE_DUAL(assign) |
|
| DEFINE_DUAL_CHECKED(assign) |
|
| |
|
| /// returns relative to @a path path to @a file |
/// returns relative to @a path path to @a file |
| const String& relative(const char *apath, const String& relative_name); |
const String& relative(const char* apath, const String& relative_name); |
| |
|
| /// returns an absolute @a path to relative @a name |
const String& full_disk_path(const String& relative_name); |
| const String& absolute(const String& relative_name); |
|
| |
/// returns the mime type of 'user_file_name' |
| |
const String& mime_type_of(const String* file_name); |
| |
|
| /// returns the mime type of 'user_file_name_cstr' |
/// returns the mime type of 'user_file_name_cstr' |
| const String& mime_type_of(const char *user_file_name_cstr); |
const String& mime_type_of(const char* user_file_name_cstr); |
| |
|
| /// returns current SQL connection if any |
/// returns current SQL connection if any |
| SQL_Connection *connection(const String *source) { |
SQL_Connection* connection(bool fail_on_error=true) { |
| if(!fconnection && source) |
if(fail_on_error && !fconnection) |
| throw Exception("parser.runtime", |
throw Exception(PARSER_RUNTIME, 0, "outside of 'connect' operator"); |
| source, |
return fconnection; |
| "outside of 'connect' operator"); |
|
| |
|
| return fconnection; |
|
| } |
} |
| |
|
| bool origins_mode() { |
Skip get_skip() { return fskip; } |
| return main_class->get_element(*origins_mode_name)!=0; // $ORIGINS mode |
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; } |
| |
|
| public: |
public: |
| |
|
| /// info from web server |
/// info from web server |
| Info& info; |
Request_info& request_info; |
| /// user's post data |
|
| char *post_data; size_t post_size; |
|
| |
|
| /// name of 'main' method |
/// info about ServerAPI |
| const String main_method_name; |
SAPI_Info& sapi_info; |
| |
|
| /// operators are methods of this class |
/// source, client, mail charsets |
| Methoded& OP; |
Request_charsets charsets; |
| /// $env:fields |
|
| VEnv env; |
/// 'MAIN' class conglomerat & operators are methods of this class |
| /// $status:fields |
VStateless_class& main_class; |
| VStatus status; |
|
| /// $form:elements |
/// $form:elements |
| VForm form; |
VForm& form; |
| /// $mail |
/// $mail |
| VMail mail; |
VMail& mail; |
| /// $math:constants |
|
| VMath math; |
|
| /// $request:elements |
|
| VRequest request; |
|
| /// $response:elements |
/// $response:elements |
| VResponse response; |
VResponse& response; |
| /// $cookie:elements |
/// $cookie:elements |
| VCookie cookie; |
VCookie& cookie; |
| |
/// $console |
| |
VConsole& console; |
| |
|
| //@{ request processing status |
/// classes configured data |
| /// execution stack |
HashString<void*> classes_conf; |
| Stack stack; |
|
| /// contexts |
|
| Value *self, *root, *rcontext; |
|
| /// contexts |
|
| WContext *wcontext; |
|
| /// exception stack trace |
|
| Stack exception_trace; |
|
| //@} |
|
| |
|
| /// 'MAIN' class conglomerat |
public: // status read methods |
| VStateless_class *main_class; |
|
| |
|
| /// classes configured data |
VMethodFrame *get_method_frame() { return method_frame; } |
| Hash classes_conf; |
Value& get_self(); |
| |
|
| private: // core data |
#define GET_SELF(request, type) (static_cast<type &>(request.get_self())) |
| |
|
| /// classes |
/// public for ^reflection:copy[] |
| Hash fclasses; |
void put_element(Value& ncontext, const String& name, Value* value); |
| |
|
| /// already used files to avoid cyclic uses |
/// for @main[] and parser://method/call |
| Hash used_files; |
const String* execute_method(VStateless_class& aclass, const String& method_name, Value* optional_param = 0); |
| |
|
| /** endless execute(execute(... preventing counter |
//{ for @conf[filespec] and @auto[filespec] |
| @see ANTI_ENDLESS_EXECUTE_RECOURSION |
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); |
| uint anti_endless_execute_recoursion; |
|
| |
//} |
| |
|
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#ifdef XML |
| |
public: // charset helpers |
| |
|
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/// @see Charset::transcode |
| |
xmlChar* transcode(const String& s); |
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/// @see Charset::transcode |
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xmlChar* transcode(const String::Body s); |
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/// @see Charset::transcode |
| |
const String& transcode(const xmlChar* s); |
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|
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#endif |
| |
|
| private: |
private: |
| |
|
| /// already executed some @conf method |
/// already executed some @conf method |
| bool configure_admin_done; |
bool configure_admin_done; |
| |
|
| void configure_admin(VStateless_class& conf_class, const String *source); |
void configure_admin(VStateless_class& conf_class); |
| |
|
| |
void configure(); |
| |
|
| private: // compile.C |
private: // compile.C |
| |
|
| VStateless_class& real_compile(COMPILE_PARAMS); |
ArrayClass& compile(VStateless_class* aclass, const char* source, const String* main_alias, uint file_no, int line_no_offset); |
| |
|
| private: // execute.C |
private: // execute.C |
| |
|
| /// for @postprocess[body] |
Value& get_element(Value& ncontext, const String& name); |
| const String& execute_method(VMethodFrame& amethodFrame, const Method& method); |
#ifdef FEATURE_GET_ELEMENT4CALL |
| //{ for @conf[filespec] and @auto[filespec] |
Value& get_element4call(Value& ncontext, const String& name); |
| void execute_method(Value& aself, |
#endif |
| 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, |
|
| const Method **return_method=0); |
|
| //} |
|
| /// for @main[] |
|
| const String *execute_virtual_method(Value& aself, const String& method_name); |
|
| |
|
| Value *get_element(const String *& remember_name, bool can_call_operator); |
|
| |
|
| private: // defaults |
private: // defaults |
| |
|
| const uchar fdefault_lang; |
const String::Language fdefault_lang; |
| Value *default_content_type; |
|
| |
|
| private: // mime types |
private: // mime types |
| |
|
| /// $MAIN:MIME-TYPES |
/// $MAIN:MIME-TYPES |
| Table *mime_types; |
Table *mime_types; |
| |
|
| private: // lang manipulation |
|
| |
|
| uchar set_lang(uchar alang) { |
|
| uchar result=flang; |
|
| flang=alang; |
|
| return result; |
|
| } |
|
| void restore_lang(uchar alang) { |
|
| flang=alang; |
|
| } |
|
| |
|
| private: // lang&raw |
|
| |
|
| uchar flang; |
|
| |
|
| |
|
| private: // connection manipulation |
private: // connection manipulation |
| |
|
| SQL_Connection *set_connection(SQL_Connection *aconnection) { |
SQL_Connection* set_connection(SQL_Connection* aconnection) { |
| SQL_Connection *result=fconnection; |
SQL_Connection* result=fconnection; |
| fconnection=aconnection; |
fconnection=aconnection; |
| return result; |
return result; |
| } |
} |
| void restore_connection(SQL_Connection *aconnection) { |
void restore_connection(SQL_Connection* aconnection) { |
| fconnection=aconnection; |
fconnection=aconnection; |
| } |
} |
| |
|
| private: |
private: |
| |
|
| /// connection |
void output_result(VFile* body_file, bool header_only, bool as_attachment); |
| SQL_Connection *fconnection; |
|
| |
|
| void output_result(const VFile& body_file, bool header_only); |
|
| }; |
}; |
| |
|
| /// Auto-object used for temporary changing Request::flang. |
/// Auto-object used to save request context across ^try body |
| class Temp_lang { |
class Request_context_saver { |
| Request& frequest; |
Request& fr; |
| uchar saved_lang; |
|
| |
/// exception stack trace |
| |
size_t exception_trace_top; |
| |
size_t exception_trace_bottom; |
| |
/// execution stack |
| |
size_t stack; |
| |
uint anti_endless_execute_recoursion; |
| |
/// contexts |
| |
VMethodFrame* method_frame; |
| |
Value* rcontext; |
| |
WContext* wcontext; |
| |
/// current language |
| |
String::Language flang; |
| |
/// current connection |
| |
SQL_Connection* fconnection; |
| |
|
| public: |
public: |
| Temp_lang(Request& arequest, uchar alang) : |
Request_context_saver(Request& ar) : |
| frequest(arequest), |
fr(ar), |
| saved_lang(arequest.set_lang(alang)) { |
exception_trace_top(ar.exception_trace.top_index()), |
| } |
exception_trace_bottom(ar.exception_trace.bottom_index()), |
| ~Temp_lang() { |
stack(ar.stack.top_index()), |
| frequest.restore_lang(saved_lang); |
anti_endless_execute_recoursion(ar.anti_endless_execute_recoursion), |
| |
method_frame(ar.method_frame), |
| |
rcontext(ar.rcontext), |
| |
wcontext(ar.wcontext), |
| |
flang(ar.flang), |
| |
fconnection(ar.fconnection) {} |
| |
void restore() { |
| |
fr.exception_trace.set_top_index(exception_trace_top); |
| |
fr.exception_trace.set_bottom_index(exception_trace_bottom); |
| |
fr.stack.set_top_index(stack); |
| |
fr.anti_endless_execute_recoursion=anti_endless_execute_recoursion; |
| |
fr.method_frame=method_frame, fr.rcontext=rcontext; fr.wcontext=wcontext; |
| |
fr.flang=flang; |
| |
fr.fconnection=fconnection; |
| } |
} |
| }; |
}; |
| |
|
| /// Auto-object used for temporary changing Request::fconnection. |
/// Auto-object used for temporary changing Request::fconnection. |
| class Temp_connection { |
class Temp_connection { |
| Request& frequest; |
Request& frequest; |
| SQL_Connection *saved_connection; |
SQL_Connection* saved_connection; |
| public: |
public: |
| Temp_connection(Request& arequest, SQL_Connection *aconnection) : |
Temp_connection(Request& arequest, SQL_Connection* aconnection) : |
| frequest(arequest), |
frequest(arequest), |
| saved_connection(arequest.set_connection(aconnection)) { |
saved_connection(arequest.set_connection(aconnection)) { |
| } |
} |
| ~Temp_connection() { |
~Temp_connection() { |
| frequest.restore_connection(saved_connection); |
frequest.restore_connection(saved_connection); |
| } |
} |
| }; |
}; |
| |
|
| /** |
/// Auto-object used for break out of cycle check |
| @b method parameters passed in this array. |
class InCycle { |
| contains handy typecast ad junction/not junction ensurers |
Request& frequest; |
| |
|
| */ |
|
| class MethodParams : public Array { |
|
| public: |
public: |
| MethodParams(Pool& pool, const String& amethod_name) : Array(pool), |
InCycle(Request& arequest) : frequest(arequest) { |
| fmethod_name(amethod_name) { |
frequest.set_in_cycle(1); |
| } |
|
| |
|
| /// handy typecast. I long for templates |
|
| Value& get(int index) { |
|
| return *static_cast<Value *>(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 |
~InCycle() { |
| Value& as_no_junction(int index, const char *msg) { |
frequest.set_in_cycle(-1); |
| 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(); |
/// Auto-object used for break out of cycle check |
| } |
class TempSkip4Delimiter { |
| /// handy expression auto-processing to int |
Request& frequest; |
| int as_int(int index, const char *msg, Request& r) { |
Request::Skip fskip; |
| return get_processed(index, msg, r).as_int(); |
public: |
| } |
TempSkip4Delimiter(Request& arequest) : frequest(arequest), fskip(arequest.get_skip()) { |
| /// handy expression auto-processing to bool |
frequest.set_skip(Request::SKIP_NOTHING); |
| bool as_bool(int index, const char *msg, Request& r) { |
|
| return get_processed(index, msg, r).as_bool(); |
|
| } |
} |
| /// handy string ensurer |
// returns true if break required, should be called |
| const String& as_string(int index, const char *msg) { |
bool check_break() { |
| return as_no_junction(index, msg).as_string(); |
if(frequest.get_skip()) |
| |
fskip=frequest.get_skip(); |
| |
frequest.set_skip(fskip <= Request::SKIP_BREAK ? Request::SKIP_NOTHING : fskip); |
| |
return fskip >= Request::SKIP_BREAK; |
| } |
} |
| |
}; |
| |
|
| private: |
/// Auto-object used for temporary changing Request::allow_class_replace. |
| |
class Temp_class_replace { |
| /// handy value-is/not-a-junction ensurer |
Request& frequest; |
| Value& get_as(int index, bool as_junction, const char *msg) { |
public: |
| Value& result=get(index); |
Temp_class_replace(Request& arequest, bool avalue) : frequest(arequest){ |
| if((result.get_junction()!=0) ^ as_junction) |
frequest.allow_class_replace=avalue; |
| throw Exception("parser.runtime", |
|
| &fmethod_name, |
|
| "%s (parameter #%d)", msg, 1+index); |
|
| |
|
| return result; |
|
| } |
} |
| |
~Temp_class_replace() { |
| Value& get_processed(int index, const char *msg, Request& r) { |
frequest.allow_class_replace=false; |
| return r.process_to_value(as_junction(index, msg), 0/*no name*/); |
|
| } |
} |
| |
}; |
| |
|
| private: |
/// Auto-object used for temporarily substituting/removing elements |
| |
class Temp_value_element { |
| const String& fmethod_name; |
Request& frequest; |
| |
Value& fwhere; |
| |
const String& fname; |
| |
Value* saved; |
| |
public: |
| |
Temp_value_element(Request& arequest, Value& awhere, const String& aname, Value* awhat); |
| |
~Temp_value_element(); |
| }; |
}; |
| |
|
| #endif |
#endif |