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version 1.136, 2002/06/12 10:58:42
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version 1.160.2.9, 2003/01/31 12:34:31
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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) 2001-2003 ArtLebedev Group (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| |
|
| $Id$ |
|
| */ |
*/ |
| |
|
| #ifndef PA_REQUEST_H |
#ifndef PA_REQUEST_H |
| #define PA_REQUEST_H |
#define PA_REQUEST_H |
| |
|
| |
static const char* IDENT_REQUEST_H="$Date$"; |
| |
|
| #include "pa_pool.h" |
#include "pa_pool.h" |
| |
#include "pa_request_info.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" |
|
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| #include "pa_venv.h" |
#include "pa_venv.h" |
| #include "pa_vstatus.h" |
#include "pa_vstatus.h" |
| #include "pa_vform.h" |
#include "pa_vform.h" |
| |
#include "pa_vmail.h" |
| #include "pa_vmath.h" |
#include "pa_vmath.h" |
| #include "pa_vrequest.h" |
#include "pa_vrequest.h" |
| #include "pa_vresponse.h" |
#include "pa_vresponse.h" |
| #include "pa_vcookie.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 |
#ifdef RESOURCES_DEBUG |
| #include <sys/resource.h> |
#include <sys/resource.h> |
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| |
|
| // consts |
// consts |
| |
|
| #define MAIN_METHOD_NAME "main" |
|
| const uint ANTI_ENDLESS_EXECUTE_RECOURSION=500; |
const uint ANTI_ENDLESS_EXECUTE_RECOURSION=500; |
| |
|
| // defines |
// defines |
| |
|
| #ifndef NO_STRING_ORIGIN |
#ifndef NO_STRING_ORIGIN |
| # define COMPILE_PARAMS \ |
# define COMPILE_PARAMS \ |
| const char *source, \ |
VStateless_classPtr aclass, const char* source \ |
| VStateless_class *aclass, const String *name, \ |
, const char* file |
| VStateless_class *base_class, \ |
# define COMPILE(aclass, source, file) \ |
| const char *file |
real_compile(aclass, source, file) |
| # define COMPILE(source, aclass, name, base_class, file) \ |
|
| real_compile(source, aclass, name, base_class, file) |
|
| #else |
#else |
| # define COMPILE_PARAMS \ |
# define COMPILE_PARAMS \ |
| const char *source, \ |
VStateless_classPtr aclass, const char* source |
| VStateless_class *aclass, const String *name, \ |
# define COMPILE(aclass, source, file) \ |
| VStateless_class *base_class |
real_compile(aclass, source) |
| # define COMPILE(source, aclass, name, base_class, file) \ |
|
| real_compile(source, aclass, name, base_class) |
|
| #endif |
#endif |
| |
|
| |
// forwards |
| |
|
| class Temp_lang; |
class Temp_lang; |
| class Methoded; |
class Methoded; |
| class VMethodFrame; |
class VMethodFrame; |
| |
|
| /// 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 Request_context_saver; |
| |
friend class Temp_request_self; |
| |
|
| |
/// all files and classes and other hard-to-place allocations go to this pool |
| |
Pool fpool; |
| |
|
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///@{ core data |
| |
|
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/// classes |
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HashStringValue fclasses; |
| |
|
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/// already used files to avoid cyclic uses |
| |
Hash<StringPtr, bool> used_files; |
| |
|
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/** endless execute(execute(... preventing counter |
| |
@see ANTI_ENDLESS_EXECUTE_RECOURSION |
| |
*/ |
| |
uint anti_endless_execute_recoursion; |
| |
|
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///@} |
| |
|
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public: |
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//@{ request processing status |
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/// exception stack trace |
| |
Stack<StringPtr> exception_trace; |
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/// execution stack |
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Stack<void *> stack; |
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/// contexts |
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VMethodFrame *method_frame; |
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Value *rcontext; |
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WContext *wcontext; |
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/// current language |
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uchar flang; |
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/// current connection |
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SQL_Connection *fconnection; |
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//@} |
| |
/// interrupted flag, raised on signals [SIGPIPE] |
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bool finterrupted; |
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|
| public: |
public: |
| |
|
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/// all files and classes and other hard-to-place allocations go to this pool |
| |
Pool& pool() { return fpool; } |
| |
|
| #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 { |
|
| 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; |
|
| }; |
|
| |
|
| Request(Pool& apool, |
|
| Info& ainfo, |
|
| uchar adefault_lang, ///< all tainted data default untainting lang |
uchar adefault_lang, ///< all tainted data default untainting lang |
| bool status_allowed ///< status class allowed |
bool status_allowed ///< status class allowed |
| ); |
); |
| ~Request(); |
~Request(); |
| |
|
| /// global classes |
/// global classes |
| Hash& classes() { return fclasses; } |
HashStringValue& classes() { return fclasses; } |
| |
|
| /** |
/** |
| core request processing |
core request processing |
|
Line 99 public:
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Line 128 public:
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| BEWARE: may throw exception to you: catch it! |
BEWARE: may throw exception to you: catch it! |
| */ |
*/ |
| void core( |
void core( |
| const char *root_config_filespec, ///< system config filespec |
const char* config_filespec, ///< system config filespec |
| bool root_config_fail_on_read_problem, ///< fail if system config file not found |
bool config_fail_on_read_problem, ///< fail if system config file not found |
| const char *site_config_filespec, ///< site config filespec |
|
| bool site_config_fail_on_read_problem, ///< fail if site config file not found |
|
| bool header_only); |
bool header_only); |
| |
|
| /// executes ops |
/// executes ops |
| void execute(const Array& ops); // execute.C |
void execute(const Array& ops); // execute.C |
| /// 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(StringPtr name, const Array& ops) { |
| // anti_endless_execute_recoursion |
// anti_endless_execute_recoursion |
| if(++anti_endless_execute_recoursion==ANTI_ENDLESS_EXECUTE_RECOURSION) { |
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 |
|
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| } |
} |
| |
|
| /// compiles the file, maybe forcing it's class @a name and @a base_class. |
/// compiles the file, maybe forcing it's class @a name and @a base_class. |
| VStateless_class *use_file( |
VStateless_classPtr use_file(VStateless_classPtr aclass, |
| const String& file_name, |
StringPtr file_name, |
| bool ignore_class_path=false, bool fail_on_read_problem=true, |
bool ignore_class_path=false, |
| const String *name=0, |
bool fail_on_read_problem=true, bool fail_on_file_absence=true); // pa_request.C |
| VStateless_class *base_class=0); // core.C |
|
| /// compiles a @a source buffer |
/// compiles a @a source buffer |
| VStateless_class *use_buf( |
VStateless_classPtr use_buf(VStateless_classPtr aclass, |
| const char *source, const char *file, |
const char* source, |
| VStateless_class *aclass=0, const String *name=0, |
StringPtr filespec, const char* filespec_cstr); // pa_request.C |
| 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 |
StringOrValue process(ValuePtr input_value, bool intercept_string=true); // execute.C |
| //@{ convinient helpers |
//@{ convinient helpers |
| const String& process_to_string(Value& input_value) { |
StringPtr process_to_string(ValuePtr input_value) { |
| return process(input_value, true/*intercept_string*/).as_string(); |
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(); |
return process(input_value, intercept_string).as_value(); |
| } |
} |
| //@} |
//@} |
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| |
|
| #define DEFINE_DUAL(modification) \ |
#define DEFINE_DUAL(modification) \ |
| void write_##modification##_lang(StringOrValue dual) { \ |
void write_##modification##_lang(StringOrValue dual) { \ |
| if(const String *string=dual.get_string()) \ |
if(StringPtr string=dual.get_string()) \ |
| write_##modification##_lang(*string); \ |
write_##modification##_lang(*string); \ |
| else \ |
else \ |
| write_##modification##_lang(*dual.get_value()); \ |
write_##modification##_lang(dual.get_value()); \ |
| } |
} |
| #define DEFINE_DUAL_CHECKED(modification) \ |
#define DEFINE_DUAL_CHECKED(modification) \ |
| void write_##modification##_lang(StringOrValue dual, const String *origin) { \ |
void write_##modification##_lang(StringOrValue dual, StringPtr origin) { \ |
| if(const String *string=dual.get_string()) \ |
if(StringPtr string=dual.get_string()) \ |
| write_##modification##_lang(*string); \ |
write_##modification##_lang(*string); \ |
| else \ |
else \ |
| write_##modification##_lang(*dual.get_value(), origin); \ |
write_##modification##_lang(dual.get_value(), origin); \ |
| } |
} |
| |
|
| /// appending, sure of clean string inside |
/// appending, sure of clean string inside |
|
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| String::UL_CLEAN | flang&String::UL_OPTIMIZE_BIT); |
String::UL_CLEAN | flang&String::UL_OPTIMIZE_BIT); |
| } |
} |
| /// appending sure value, that would be converted to clean string |
/// 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()) |
if(wcontext->get_in_expression()) |
| wcontext->write(avalue); |
wcontext->write(avalue); |
| else |
else |
| wcontext->write(avalue, |
wcontext->write(pool(), avalue, |
| String::UL_CLEAN | flang&String::UL_OPTIMIZE_BIT); |
String::UL_CLEAN | flang&String::UL_OPTIMIZE_BIT); |
| } |
} |
| //DEFINE_DUAL(no) |
|
| |
|
| /// appending string, passing language built into string being written |
/// appending string, passing language built into string being written |
| void write_pass_lang(const String& astring) { |
void write_pass_lang(const String& astring) { |
| wcontext->write(astring, String::UL_PASS_APPENDED); |
wcontext->write(astring, String::UL_PASS_APPENDED); |
| } |
} |
| /// appending possible string, passing language built into string being written |
/// appending possible string, passing language built into string being written |
| void write_pass_lang(Value& avalue) { |
void write_pass_lang(ValuePtr avalue) { |
| wcontext->write(avalue, String::UL_PASS_APPENDED); |
wcontext->write(pool(), avalue, String::UL_PASS_APPENDED); |
| } |
} |
| DEFINE_DUAL(pass) |
DEFINE_DUAL(pass) |
| |
|
| /// appending possible string, assigning untaint language |
/// appending possible string, assigning untaint language |
| void write_assign_lang(Value& avalue) { |
void write_assign_lang(ValuePtr avalue) { |
| wcontext->write(avalue, flang); |
wcontext->write(pool(), avalue, flang); |
| } |
} |
| /// appending possible string, assigning untaint language |
/// appending possible string, assigning untaint language |
| void write_assign_lang(Value& avalue, const String *origin) { |
void write_assign_lang(ValuePtr avalue, StringPtr origin) { |
| wcontext->write(avalue, flang, origin); |
wcontext->write(pool(), avalue, flang, origin); |
| } |
} |
| /// appending string, assigning untaint language |
/// appending string, assigning untaint language |
| void write_assign_lang(const String& astring) { |
void write_assign_lang(const String& astring) { |
|
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| DEFINE_DUAL_CHECKED(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 |
/// returns an absolute @a path to relative @a name |
| const String& absolute(const String& relative_name); |
const String& absolute(const String& relative_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(StringPtr source) { |
| if(!fconnection && source) |
if(!fconnection && source) |
| throw Exception("parser.runtime", |
throw Exception("parser.runtime", |
| source, |
source, |
|
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Line 242 public:
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| return fconnection; |
return fconnection; |
| } |
} |
| |
|
| bool origins_mode() { |
bool origins_mode(); |
| return main_class->get_element(*origins_mode_name)!=0; // $ORIGINS mode |
|
| } |
void interrupt() { finterrupted=true; } |
| |
bool interrupted() { return finterrupted; } |
| |
|
| 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 |
|
| |
/// 'MAIN' class conglomerat & operators are methods of this class |
| |
VStateless_classPtr main_class; |
| |
/*/// $env:fields |
| VEnv env; |
VEnv env; |
| /// $status:fields |
/// $status:fields |
| VStatus status; |
VStatus status; |
| /// $form:elements |
/// $form:elements |
| VForm form; |
VForm form; |
| |
/// $mail |
| |
VMail mail; |
| /// $math:constants |
/// $math:constants |
| VMath math; |
VMath math; |
| /// $request:elements |
/// $request:elements |
|
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Line 275 public:
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| /// $response:elements |
/// $response:elements |
| VResponse response; |
VResponse response; |
| /// $cookie:elements |
/// $cookie:elements |
| VCookie cookie; |
VCookie cookie;*/ |
| |
|
| //@{ request processing status |
|
| /// execution stack |
|
| Stack stack; |
|
| /// contexts |
|
| Value *self, *root, *rcontext; |
|
| /// contexts |
|
| WContext *wcontext; |
|
| /// exception stack trace |
|
| Stack exception_trace; |
|
| //@} |
|
| |
|
| /// 'MAIN' class conglomerat |
|
| VStateless_class *main_class; |
|
| |
|
| /// classes configured data |
/// classes configured data |
| Hash classes_conf; |
HashStringValue classes_conf; |
| |
|
| private: // core data |
|
| |
|
| /// classes |
|
| Hash fclasses; |
|
| |
|
| /// already used files to avoid cyclic uses |
public: // status read methods |
| Hash used_files; |
|
| |
|
| /** endless execute(execute(... preventing counter |
VMethodFrame *get_method_frame() { return method_frame; } |
| @see ANTI_ENDLESS_EXECUTE_RECOURSION |
Value *get_self(); |
| */ |
|
| uint anti_endless_execute_recoursion; |
|
| |
|
| private: |
private: |
| |
|
|
Line 292 private: // compile.C
|
Line 298 private: // compile.C
|
| |
|
| private: // execute.C |
private: // execute.C |
| |
|
| const String *execute_method(Value& aself, const Method& method, |
/// for @postprocess[body] |
| bool return_cstr); |
|
| const String& execute_method(VMethodFrame& amethodFrame, const Method& method); |
const String& 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, |
| |
const Method **return_method=0); |
| |
//} |
| |
/// for @main[] |
| const String *execute_virtual_method(Value& aself, const String& method_name); |
const String *execute_virtual_method(Value& aself, const String& method_name); |
| const String *execute_nonvirtual_method(VStateless_class& aclass, |
|
| const String& method_name, |
|
| bool return_cstr); |
|
| |
|
| Value *get_element(const String *& remember_name, bool can_call_operator); |
Value *get_element(const String *& remember_name, bool can_call_operator); |
| |
|
|
Line 323 private: // lang manipulation
|
Line 335 private: // lang manipulation
|
| flang=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) { |
|
Line 341 private: // connection manipulation
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Line 348 private: // connection manipulation
|
| |
|
| private: |
private: |
| |
|
| /// connection |
void output_result(const VFile& 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; |
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. |
/// Auto-object used for temporary changing Request::flang. |
|
Line 375 public:
|
Line 415 public:
|
| } |
} |
| }; |
}; |
| |
|
| /** |
// externs |
| @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 |
extern StringPtr main_method_name; |
| 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 |
|
| 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); |
|
| |
|
| return result; |
|
| } |
|
| |
|
| Value& get_processed(int index, const char *msg, Request& r) { |
|
| return r.process_to_value(as_junction(index, msg), 0/*no name*/); |
|
| } |
|
| |
|
| private: |
|
| |
|
| const String& fmethod_name; |
|
| |
|
| }; |
|
| |
|
| #endif |
#endif |