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version 1.64.2.3, 2001/03/20 18:24:43
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version 1.160.2.29, 2003/03/04 15:59:18
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| /** @file |
/** @file |
| Parser: request class decl. |
Parser: request class decl. |
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| Copyright (c) 2001 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: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) |
|
| |
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| $Id$ |
|
| */ |
*/ |
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| #ifndef PA_REQUEST_H |
#ifndef PA_REQUEST_H |
| #define PA_REQUEST_H |
#define PA_REQUEST_H |
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|
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static const char* IDENT_REQUEST_H="$Date$"; |
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|
| #include "pa_pool.h" |
#include "pa_pool.h" |
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#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" |
| #include "pa_stack.h" |
#include "pa_stack.h" |
| #include "pa_vclass.h" |
#include "pa_vclass.h" |
| #include "pa_vobject.h" |
#include "pa_vobject.h" |
| #include "pa_venv.h" |
|
| #include "pa_vform.h" |
#include "pa_vform.h" |
| #include "pa_vrequest.h" |
#include "pa_vmail.h" |
| #include "pa_vresponse.h" |
#include "pa_vresponse.h" |
| #include "pa_vcookie.h" |
#include "pa_vcookie.h" |
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#include "pa_request_info.h" |
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#include "pa_request_charsets.h" |
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#include "pa_sapi.h" |
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|
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#ifdef RESOURCES_DEBUG |
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#include <sys/resource.h> |
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#endif |
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// consts |
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const uint ANTI_ENDLESS_EXECUTE_RECOURSION=500; |
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// defines |
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|
| #ifndef NO_STRING_ORIGIN |
#ifndef NO_STRING_ORIGIN |
| # define COMPILE_PARAMS \ |
# define COMPILE_PARAMS \ |
| const char *source, \ |
VStateless_class* 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_class* 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 |
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|
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// forwards |
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|
| class Temp_lang; |
class Temp_lang; |
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class Methoded; |
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class VMethodFrame; |
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|
| /// Main workhorse. |
/// Main workhorse. |
| class Request : public Pooled { |
class Request: public PA_Object { |
| friend Temp_lang; |
friend class Temp_lang; |
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friend class Temp_connection; |
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friend class Request_context_saver; |
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friend class Temp_request_self; |
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|
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/// all files and classes and other hard-to-place allocations go to this pool |
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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 |
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Hash<StringPtr, bool> used_files; |
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|
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/** endless execute(execute(... preventing counter |
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@see ANTI_ENDLESS_EXECUTE_RECOURSION |
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*/ |
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uint anti_endless_execute_recoursion; |
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///@} |
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| public: |
public: |
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|
| /// some information from web server |
class StackItem { |
| class Info { |
|
| public: |
public: |
| const char *document_root; |
StringPtr string(Pool& pool) const { return value->get_string(&pool); } |
| const char *path_translated; |
ValuePtr value; |
| const char *method; |
ArrayOperationPtr ops; |
| const char *query_string; |
void *ptr; |
| const char *uri; |
|
| const char *content_type; |
/// needed to fill unused Array entries |
| size_t content_length; |
StackItem() {} |
| const char *cookie; |
StackItem(ValuePtr avalue): value(avalue) {} |
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StackItem(ArrayOperationPtr aops): ops(aops) {} |
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StackItem(void *aptr): ptr(aptr) {} |
| }; |
}; |
| |
|
| Request(Pool& apool, |
//@{ request processing status |
| Info& ainfo, |
/// exception stack trace |
| String::Untaint_lang adefault_lang ///< all tainted data default untainting lang |
Stack<StringPtr> exception_trace; |
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/// execution stack |
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Stack<StackItem> 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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String_UL flang; |
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/// current connection |
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SQL_Connection *fconnection; |
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//@} |
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/// interrupted flag, raised on signals [SIGPIPE] |
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bool finterrupted; |
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public: |
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/// all files and classes and other hard-to-place allocations go to this pool |
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Pool& pool() { return fpool; } |
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#ifdef RESOURCES_DEBUG |
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/// measures |
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double sql_connect_time; |
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double sql_request_time; |
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#endif |
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|
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Request(Pool& apool, SAPI_Info& asapi_info, Request_info& arequest_info, |
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String_UL adefault_lang, ///< all tainted data default untainting lang |
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bool status_allowed ///< status class allowed |
| ); |
); |
| ~Request() {} |
~Request(); |
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|
| /// global classes |
/// global classes |
| Hash& classes() { return fclasses; } |
HashStringValue& classes() { return fclasses; } |
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|
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/** |
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core request processing |
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|
| /// core request processing |
BEWARE: may throw exception to you: catch it! |
| void core(Exception& system_exception, |
*/ |
| const char *sys_auto_path1, |
void core( |
| const char *sys_auto_path2); |
const char* config_filespec, ///< system config filespec |
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bool config_fail_on_read_problem, ///< fail if system config file not found |
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bool header_only); |
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|
| /// executes ops |
/// executes ops |
| void execute(const Array& ops); |
void execute(ArrayOperation& ops); // execute.C |
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/// execute ops with anti-recoursion check |
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void recoursion_checked_execute(StringPtr name, ArrayOperation& ops) { |
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// anti_endless_execute_recoursion |
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if(++anti_endless_execute_recoursion==ANTI_ENDLESS_EXECUTE_RECOURSION) { |
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anti_endless_execute_recoursion=0; // give @exception a chance |
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throw Exception("parser.runtime", |
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name, |
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"call canceled - endless recursion detected"); |
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} |
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execute(ops); // execute it |
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anti_endless_execute_recoursion--; |
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} |
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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_class& aclass, |
| const char *file, bool fail_on_read_problem=true, |
StringPtr file_name, |
| const String *name=0, |
bool ignore_class_path=false, |
| VStateless_class *base_class=0); // core.C |
bool fail_on_read_problem=true, bool fail_on_file_absence=true); // pa_request.C |
| /// compiles a @a source buffer |
/// compiles a @a source buffer |
| VStateless_class *use_buf( |
VStateless_classPtr use_buf(VStateless_class& 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 |
| Value& process( |
StringOrValue process(ValuePtr input_value, bool intercept_string=true); // execute.C |
| Value& value, |
//@{ convinient helpers |
| const String *name=0, |
StringPtr process_to_string(ValuePtr input_value) { |
| bool intercept_string=true); // execute.C |
return process(input_value, true/*intercept_string*/).as_string(&pool()); |
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} |
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ValuePtr process_to_value(ValuePtr input_value, bool intercept_string=true) { |
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return process(input_value, intercept_string).as_value(); |
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} |
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//@} |
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#define DEFINE_DUAL(modification) \ |
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void write_##modification##_lang(StringOrValue dual) { \ |
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if(StringPtr string=dual.get_string()) \ |
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write_##modification##_lang(*string); \ |
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else \ |
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write_##modification##_lang(dual.get_value()); \ |
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} |
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#define DEFINE_DUAL_CHECKED(modification) \ |
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void write_##modification##_lang(StringOrValue dual, StringPtr origin) { \ |
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if(StringPtr string=dual.get_string()) \ |
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write_##modification##_lang(*string); \ |
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else \ |
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write_##modification##_lang(dual.get_value(), origin); \ |
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} |
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|
| /// appending, sure of clean string inside |
/// appending, sure of clean string inside |
| void write_no_lang(const String& astring) { |
void write_no_lang(const String& astring) { |
| wcontext->write(astring, String::UL_NO); |
wcontext->write(astring, |
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String::UL_CLEAN | flang&String::UL_OPTIMIZE_BIT); |
| } |
} |
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/// appending sure value, that would be converted to clean string |
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void write_no_lang(ValuePtr avalue) { |
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if(wcontext->get_in_expression()) |
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wcontext->write(pool(), avalue); |
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else |
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wcontext->write(pool(), avalue, |
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String::UL_CLEAN | flang&String::UL_OPTIMIZE_BIT); |
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} |
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|
| /// 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, assigning untaint language |
|
| void write_assign_lang(Value& avalue) { |
|
| wcontext->write(avalue, flang); |
|
| } |
|
| /// 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); |
| } |
} |
| /// appending sure value, that would be converted to clean string |
DEFINE_DUAL(pass) |
| void write_no_lang(Value& avalue) { |
|
| wcontext->write(avalue, String::UL_NO); |
/// appending possible string, assigning untaint language |
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void write_assign_lang(ValuePtr avalue) { |
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wcontext->write(pool(), avalue, flang); |
| } |
} |
| /// appending sure value, not VString |
/// appending possible string, assigning untaint language |
| void write_expr_result(Value& avalue) { |
void write_assign_lang(ValuePtr avalue, StringPtr origin) { |
| wcontext->write(avalue); |
wcontext->write(pool(), avalue, flang, origin); |
| } |
} |
| |
/// appending string, assigning untaint language |
| /// handy is-value-a-junction ensurer |
void write_assign_lang(const String& astring) { |
| void fail_if_junction_(bool is, Value& value, |
wcontext->write(astring, flang); |
| const String& method_name, const char *msg); |
} |
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DEFINE_DUAL(assign) |
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DEFINE_DUAL_CHECKED(assign) |
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|
| /// returns relative to @a path path to @a file |
/// returns relative to @a path path to @a file |
| char *relative(const char *path, const char *file); |
StringPtr relative(const char* apath, StringPtr relative_name); |
| |
|
| /// returns an absolute @a path to relative @a name |
/// returns an absolute @a path to relative @a name |
| char *absolute(const char *name); |
StringPtr absolute(StringPtr relative_name); |
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|
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/// returns the mime type of 'user_file_name_cstr' |
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StringPtr mime_type_of(const char* user_file_name_cstr); |
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|
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/// returns current SQL connection if any |
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SQL_Connection *connection(StringPtr source) { |
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if(!fconnection && source) |
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throw Exception("parser.runtime", |
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source, |
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"outside of 'connect' operator"); |
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return fconnection; |
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} |
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|
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bool origins_mode(); |
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|
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void interrupt() { finterrupted=true; } |
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bool interrupted() { return finterrupted; } |
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|
| public: |
public: |
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|
| /// info from web server |
/// info from web server |
| Info& info; |
Request_info& request_info; |
| |
|
| /// default base |
/// info about ServerAPI |
| VClass ROOT; |
SAPI_Info& sapi_info; |
| /// $env:fields here |
|
| VEnv env; |
|
| /// $form:elements here |
|
| VForm form; |
|
| /// $request:elements here |
|
| VRequest request; |
|
| /// $response: |
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| VResponse response; |
|
| /// $cookie: |
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| VCookie cookie; |
|
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|
| /// contexts |
/// source, client, mail charsets |
| Value *self, *root, *rcontext; |
Request_charsets charsets; |
| /// contexts |
|
| WContext *wcontext; |
/// 'MAIN' class conglomerat & operators are methods of this class |
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VStateless_classPtr main_class; |
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/// $form:elements |
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VFormPtr form; |
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/// $mail |
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VMailPtr mail; |
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/// $response:elements |
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VResponsePtr response; |
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/// $cookie:elements |
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VCookiePtr cookie; |
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|
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/// classes configured data |
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HashStringObject classes_conf; |
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|
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public: // status read methods |
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|
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VMethodFrame *get_method_frame() { return method_frame; } |
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ValuePtr get_self(); |
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#define GET_SELF(request, type) (*static_cast<type *>(request.get_self().get())) |
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/* for strange reason call to this: |
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r.get_self<VHash>() |
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refuses to compile |
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template<typename T> T& get_self() { |
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return *static_cast<T*>(get_self().get()); |
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} |
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*/ |
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|
| private: // core data |
private: |
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|
| // classes |
/// already executed some @conf method |
| Hash fclasses; |
bool configure_admin_done; |
| |
|
| // execution stack |
void configure_admin(VStateless_class& conf_class, StringPtr source); |
| Stack stack; |
|
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| private: // compile.C |
private: // compile.C |
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Line 166 private: // compile.C
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Line 310 private: // compile.C
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| private: // execute.C |
private: // execute.C |
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| const String *execute_method(Value& aself, const Method& method, |
/// for @postprocess[body] |
| bool return_cstr=true); |
StringPtr execute_method(VMethodFrame& amethodFrame, const Method& method); |
| const String *execute_method(Value& aself, const String& method_name, |
//{ for @conf[filespec] and @auto[filespec] |
| bool return_cstr=true); |
StringPtr execute_method(ValuePtr aself, |
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const Method& method, VStringPtr optional_param, |
| Value *get_element(); |
bool do_return_string); |
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struct Execute_nonvirtual_method_result { |
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StringPtr string; |
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MethodPtr method; |
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}; |
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Execute_nonvirtual_method_result execute_nonvirtual_method(VStateless_class& aclass, |
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StringPtr method_name, VStringPtr optional_param, |
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bool do_return_string); |
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//} |
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/// for @main[] |
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StringPtr execute_virtual_method(ValuePtr aself, StringPtr method_name); |
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|
| private: // lang&raw |
ValuePtr get_element(StringPtr& remember_name, bool can_call_operator); |
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| String::Untaint_lang flang; |
|
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|
| private: // defaults |
private: // defaults |
| |
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| const String::Untaint_lang fdefault_lang; |
const String_UL fdefault_lang; |
| Value *fdefault_content_type; |
|
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private: // mime types |
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|
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/// $MAIN:MIME-TYPES |
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Table *mime_types; |
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|
| private: // lang manipulation |
private: // lang manipulation |
| |
|
| String::Untaint_lang set_lang(String::Untaint_lang alang) { |
String_UL set_lang(String_UL alang) { |
| String::Untaint_lang result=flang; |
String_UL result=flang; |
| flang=alang; |
flang=alang; |
| return result; |
return result; |
| } |
} |
| void restore_lang(String::Untaint_lang alang) { |
void restore_lang(String_UL alang) { |
| flang=alang; |
flang=alang; |
| } |
} |
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|
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private: // connection manipulation |
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|
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SQL_Connection *set_connection(SQL_Connection *aconnection) { |
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SQL_Connection *result=fconnection; |
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fconnection=aconnection; |
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return result; |
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} |
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void restore_connection(SQL_Connection *aconnection) { |
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fconnection=aconnection; |
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} |
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|
| private: |
private: |
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|
| void output_result(const String& body_string); |
void output_result(VFilePtr body_file, bool header_only, bool as_attachment); |
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}; |
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|
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/// Auto-object used to save request context across ^try body |
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class Request_context_saver { |
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Request& fr; |
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|
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/// exception stack trace |
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int exception_trace; |
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/// execution stack |
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int 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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String_UL flang; |
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/// current connection |
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SQL_Connection *fconnection; |
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|
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public: |
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Request_context_saver(Request& ar) : |
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exception_trace(ar.exception_trace.top_index()), |
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stack(ar.stack.top_index()), |
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method_frame(ar.method_frame), |
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rcontext(ar.rcontext), |
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wcontext(ar.wcontext), |
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flang(ar.flang), |
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fconnection(ar.fconnection), |
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fr(ar) {} |
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void restore() { |
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fr.exception_trace.top_index(exception_trace); |
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fr.stack.top_index(stack); |
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fr.method_frame=method_frame, fr.rcontext=rcontext; fr.wcontext=wcontext; |
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fr.flang=flang; |
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fr.fconnection=fconnection; |
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} |
| }; |
}; |
| |
|
| /// Auto-object used for temporary changing Request::flang. |
/// Auto-object used for temporary changing Request::flang. |
| class Temp_lang { |
class Temp_lang { |
| Request& frequest; |
Request& frequest; |
| String::Untaint_lang saved_lang; |
String_UL saved_lang; |
| public: |
public: |
| Temp_lang(Request& arequest, String::Untaint_lang alang) : |
Temp_lang(Request& arequest, String_UL alang) : |
| frequest(arequest), |
frequest(arequest), |
| saved_lang(arequest.set_lang(alang)) { |
saved_lang(arequest.set_lang(alang)) { |
| } |
} |
|
Line 212 public:
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Line 415 public:
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| } |
} |
| }; |
}; |
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|
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/// Auto-object used for temporary changing Request::fconnection. |
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class Temp_connection { |
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Request& frequest; |
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SQL_Connection *saved_connection; |
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public: |
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Temp_connection(Request& arequest, SQL_Connection *aconnection) : |
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frequest(arequest), |
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saved_connection(arequest.set_connection(aconnection)) { |
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} |
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~Temp_connection() { |
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frequest.restore_connection(saved_connection); |
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} |
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}; |
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|
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|
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// defines for externs |
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|
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#define CONTENT_DISPOSITION_NAME "content-disposition" |
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#define CONTENT_DISPOSITION_VALUE "attachment" |
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#define CONTENT_DISPOSITION_FILENAME_NAME "filename" |
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|
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// externs |
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|
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extern StringPtr main_method_name; |
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extern StringPtr auto_method_name; |
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extern StringPtr body_name; |
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extern StringPtr content_disposition_name; |
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extern StringPtr content_disposition_value; |
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extern StringPtr content_disposition_filename_name; |
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|
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// defines for statics |
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|
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#define MAIN_CLASS_NAME "MAIN" |
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#define AUTO_FILE_NAME "auto.p" |
| |
|
| #endif |
#endif |