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version 1.48, 2001/03/13 16:38:22
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version 1.142, 2002/08/01 11:41:15
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| /* |
/** @file |
| Parser |
Parser: request class decl. |
| Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) |
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| Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) |
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| $Id$ |
Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) |
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Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| */ |
*/ |
| |
|
| #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" |
| #include "pa_hash.h" |
#include "pa_hash.h" |
| #include "pa_wcontext.h" |
#include "pa_wcontext.h" |
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| #include "pa_vclass.h" |
#include "pa_vclass.h" |
| #include "pa_vobject.h" |
#include "pa_vobject.h" |
| #include "pa_venv.h" |
#include "pa_venv.h" |
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#include "pa_vstatus.h" |
| #include "pa_vform.h" |
#include "pa_vform.h" |
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#include "pa_vmail.h" |
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#include "pa_vmath.h" |
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#include "pa_vrequest.h" |
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#include "pa_vresponse.h" |
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#include "pa_vcookie.h" |
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#include "pa_sql_driver_manager.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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|
| #define UNNAMED_NAME "unnamed" |
// consts |
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|
| #define MAIN_METHOD_NAME "main" |
#define MAIN_METHOD_NAME "main" |
| #define AUTO_METHOD_NAME "auto" |
const uint ANTI_ENDLESS_EXECUTE_RECOURSION=500; |
| |
|
| #define ROOT_CLASS_NAME "ROOT" |
// defines |
| #define MAIN_CLASS_NAME "MAIN" |
|
| #define TABLE_CLASS_NAME "table" |
|
| #define ENV_CLASS_NAME "env" |
|
| #define FORM_CLASS_NAME "form" |
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|
| #ifndef NO_STRING_ORIGIN |
#ifndef NO_STRING_ORIGIN |
| # define COMPILE_PARAMS \ |
# define COMPILE_PARAMS \ |
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| #endif |
#endif |
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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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|
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/// Main workhorse. |
| class Request : public Pooled { |
class Request : public Pooled { |
| friend Temp_lang; |
friend class Temp_lang; |
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friend class Temp_connection; |
| public: |
public: |
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|
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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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/// some information from web server |
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class Info { |
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public: |
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const char *document_root; |
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const char *path_translated; |
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const char *method; |
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const char *query_string; |
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const char *uri; |
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const char *content_type; |
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size_t content_length; |
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const char *cookie; |
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bool mail_received; |
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}; |
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| Request(Pool& apool); |
Request(Pool& apool, |
| ~Request() {} |
Info& ainfo, |
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uchar adefault_lang, ///< all tainted data default untainting lang |
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bool status_allowed ///< status class allowed |
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); |
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~Request(); |
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|
| // global classes |
/// global classes |
| Hash& classes() { return fclasses; } |
Hash& classes() { return fclasses; } |
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|
| // core request processing |
/** |
| void core(); |
core request processing |
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| void execute(const Array& ops); |
BEWARE: may throw exception to you: catch it! |
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*/ |
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void core( |
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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 |
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void execute(const Array& ops); // execute.C |
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/// execute ops with anti-recoursion check |
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void recoursion_checked_execute(const String *name, const Array& 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. |
| VStateless_class *use_file( |
VStateless_class *use_file( |
| const char *file, bool fail_on_read_problem=true, |
const String& file_name, |
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bool ignore_class_path=false, bool fail_on_read_problem=true, |
| const String *name=0, |
const String *name=0, |
| VStateless_class *base_class=0); // core.C |
VStateless_class *base_class=0); // core.C |
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/// compiles a @a source buffer |
| VStateless_class *use_buf( |
VStateless_class *use_buf( |
| const char *source, const char *file, |
const char *source, const String& filespec, const char *filespec_cstr, |
| VStateless_class *aclass=0, const String *name=0, |
VStateless_class *aclass=0, const String *name=0, |
| VStateless_class *base_class=0); // core.C |
VStateless_class *base_class=0); // core.C |
| Value& process( |
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| Value& value, |
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| const String *name=0, |
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| bool intercept_string=true); // execute.C |
|
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| void write(const String& astring) { |
/// processes any code-junction there may be inside of @a value |
| wcontext->write(astring, String::Untaint_lang::NO); // write(const) = clean |
StringOrValue process(Value& input_value, bool intercept_string=true); // execute.C |
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//@{ convinient helpers |
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const String& process_to_string(Value& input_value) { |
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return process(input_value, true/*intercept_string*/).as_string(); |
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} |
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Value& process_to_value(Value& 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(const String *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, const String *origin) { \ |
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if(const String *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 |
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void write_no_lang(const String& astring) { |
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wcontext->write(astring, |
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String::UL_CLEAN | flang&String::UL_OPTIMIZE_BIT); |
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} |
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/// appending sure value, that would be converted to clean string |
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void write_no_lang(Value& avalue) { |
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if(wcontext->get_in_expression()) |
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wcontext->write(avalue); |
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else |
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wcontext->write(avalue, |
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String::UL_CLEAN | flang&String::UL_OPTIMIZE_BIT); |
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} |
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//DEFINE_DUAL(no) |
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/// appending string, passing language built into string being written |
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void write_pass_lang(const String& astring) { |
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wcontext->write(astring, String::UL_PASS_APPENDED); |
| } |
} |
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/// appending possible string, passing language built into string being written |
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void write_pass_lang(Value& avalue) { |
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wcontext->write(avalue, String::UL_PASS_APPENDED); |
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} |
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DEFINE_DUAL(pass) |
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/// appending possible string, assigning untaint language |
| void write_assign_lang(Value& avalue) { |
void write_assign_lang(Value& avalue) { |
| // appending possible string, assigning untaint language |
|
| wcontext->write(avalue, flang); |
wcontext->write(avalue, flang); |
| } |
} |
| void write_pass_lang(Value& avalue) { |
/// appending possible string, assigning untaint language |
| // appending possible string, passing language built into string being written |
void write_assign_lang(Value& avalue, const String *origin) { |
| wcontext->write(avalue, String::Untaint_lang::PASS_APPENDED); |
wcontext->write(avalue, flang, origin); |
| } |
} |
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/// appending string, assigning untaint language |
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void write_assign_lang(const String& astring) { |
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wcontext->write(astring, flang); |
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} |
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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 |
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const String& relative(const char *apath, const String& relative_name); |
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| void fail_if_junction_(bool is, Value& value, const String& method_name, char *msg); |
/// returns an absolute @a path to relative @a name |
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const String& absolute(const String& relative_name); |
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| char *relative(const char *path, const char *file); |
/// returns the mime type of 'user_file_name_cstr' |
| char *absolute(const char *name); |
const String& 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(const String *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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bool origins_mode() { |
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return main_class->get_element(*origins_mode_name)!=0; // $ORIGINS mode |
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} |
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| public: |
public: |
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|
| // default base |
/// info from web server |
| VClass root_class; |
Info& info; |
| // $env:fields here |
/// user's post data |
| VEnv env_class; |
char *post_data; size_t post_size; |
| // $form:elements here |
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| VForm form_class; |
/// name of 'main' method |
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const String main_method_name; |
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/// operators are methods of this class |
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Methoded& OP; |
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/// $env:fields |
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VEnv env; |
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/// $status:fields |
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VStatus status; |
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/// $form:elements |
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VForm form; |
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/// $mail |
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VMail mail; |
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/// $math:constants |
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VMath math; |
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/// $request:elements |
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VRequest request; |
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/// $response:elements |
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VResponse response; |
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/// $cookie:elements |
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VCookie cookie; |
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| // contexts |
//@{ request processing status |
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/// execution stack |
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Stack stack; |
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/// contexts |
| Value *self, *root, *rcontext; |
Value *self, *root, *rcontext; |
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/// contexts |
| WContext *wcontext; |
WContext *wcontext; |
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/// exception stack trace |
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Stack exception_trace; |
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//@} |
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/// 'MAIN' class conglomerat |
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VStateless_class *main_class; |
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/// classes configured data |
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Hash classes_conf; |
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| private: // core data |
private: // core data |
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| // classes |
/// classes |
| Hash fclasses; |
Hash fclasses; |
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| // execution stack |
/// already used files to avoid cyclic uses |
| Stack stack; |
Hash used_files; |
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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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private: |
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/// already executed some @conf method |
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bool configure_admin_done; |
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void configure_admin(VStateless_class& conf_class, const String *source); |
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| private: // compile.C |
private: // compile.C |
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Line 122 private: // compile.C
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Line 294 private: // compile.C
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| private: // execute.C |
private: // execute.C |
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| char *execute_method(Value& aself, const Method& method, bool return_cstr); |
/// for @postprocess[body] |
| char *execute_method(Value& aself, const String& method_name, bool return_cstr); |
const String& execute_method(VMethodFrame& amethodFrame, const Method& method); |
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//{ for @conf[filespec] and @auto[filespec] |
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void execute_method(Value& aself, |
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const Method& method, VString *optional_param, |
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const String **return_string); |
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void execute_nonvirtual_method(VStateless_class& aclass, |
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const String& method_name, VString *optional_param, |
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const String **return_string, |
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const Method **return_method=0); |
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//} |
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/// for @main[] |
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const String *execute_virtual_method(Value& aself, const String& method_name); |
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Value *get_element(const String *& remember_name, bool can_call_operator); |
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private: // defaults |
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| Value *get_element(); |
const uchar fdefault_lang; |
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Value *default_content_type; |
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|
| private: // lang&raw |
private: // mime types |
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| String::Untaint_lang flang; |
/// $MAIN:MIME-TYPES |
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Table *mime_types; |
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| private: // lang manipulation |
private: // lang manipulation |
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| String::Untaint_lang set_lang(String::Untaint_lang alang) { |
uchar set_lang(uchar alang) { |
| String::Untaint_lang result=flang; |
uchar result=flang; |
| flang=alang; |
flang=alang; |
| return result; |
return result; |
| } |
} |
| void restore_lang(String::Untaint_lang alang) { |
void restore_lang(uchar alang) { |
| flang=alang; |
flang=alang; |
| } |
} |
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| private: // web |
private: // lang&raw |
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uchar flang; |
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| const char *document_root; |
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| const char *page_filespec; |
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private: // connection manipulation |
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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: |
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/// connection |
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SQL_Connection *fconnection; |
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void output_result(const VFile& body_file, bool header_only); |
| }; |
}; |
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/// Auto-object used for temporary changing Request::flang. |
| class Temp_lang { |
class Temp_lang { |
| Request& frequest; |
Request& frequest; |
| String::Untaint_lang saved_lang; |
uchar saved_lang; |
| public: |
public: |
| Temp_lang(Request& arequest, String::Untaint_lang alang) : |
Temp_lang(Request& arequest, uchar alang) : |
| frequest(arequest), |
frequest(arequest), |
| saved_lang(arequest.set_lang(alang)) { |
saved_lang(arequest.set_lang(alang)) { |
| } |
} |
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Line 369 public:
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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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@b method parameters passed in this array. |
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contains handy typecast ad junction/not junction ensurers |
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*/ |
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class MethodParams : public Array { |
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public: |
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MethodParams(Pool& pool, const String& amethod_name) : Array(pool), |
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fmethod_name(amethod_name) { |
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} |
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/// handy typecast. I long for templates |
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Value& get(int index) { |
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return *static_cast<Value *>(Array::get(index)); |
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} |
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/// handy is-value-a-junction ensurer |
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Value& as_junction(int index, const char *msg) { |
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return get_as(index, true, msg); |
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} |
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/// handy value-is-not-a-junction ensurer |
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Value& as_no_junction(int index, const char *msg) { |
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return get_as(index, false, msg); |
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} |
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/// handy expression auto-processing to double |
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double as_double(int index, const char *msg, Request& r) { |
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return get_processed(index, msg, r).as_double(); |
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} |
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/// handy expression auto-processing to int |
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int as_int(int index, const char *msg, Request& r) { |
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return get_processed(index, msg, r).as_int(); |
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} |
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/// handy expression auto-processing to bool |
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bool as_bool(int index, const char *msg, Request& r) { |
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return get_processed(index, msg, r).as_bool(); |
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} |
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/// handy string ensurer |
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const String& as_string(int index, const char *msg) { |
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return as_no_junction(index, msg).as_string(); |
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} |
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|
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private: |
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|
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/// handy value-is/not-a-junction ensurer |
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Value& get_as(int index, bool as_junction, const char *msg) { |
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Value& result=get(index); |
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if((result.get_junction()!=0) ^ as_junction) |
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throw Exception("parser.runtime", |
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&fmethod_name, |
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"%s (parameter #%d)", msg, 1+index); |
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|
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return result; |
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} |
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|
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Value& get_processed(int index, const char *msg, Request& r) { |
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return r.process_to_value(as_junction(index, msg), 0/*no name*/); |
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} |
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|
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private: |
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|
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const String& fmethod_name; |
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|
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}; |
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| #endif |
#endif |