parser3/src/main/pa_request.C - diff

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Diff for /parser3/src/main/pa_request.C between versions 1.324 and 1.384

version 1.324, 2010/09/16 23:35:11	version 1.384, 2020/10/28 22:32:02
Line 1	Line 1
/** @file	/** @file
Parser: request class main part. @see compile.C and execute.C.	Parser: request class main part. @see compile.C and execute.C.

Copyright (c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com)	Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com)
Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)	Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
*/	*/

static const char * const IDENT_REQUEST_C="$Date$";

#include "pa_sapi.h"	#include "pa_sapi.h"
#include "pa_common.h"	#include "pa_common.h"
	#include "pa_os.h"
#include "pa_request.h"	#include "pa_request.h"
#include "pa_wwrapper.h"	#include "pa_wwrapper.h"
#include "pa_vclass.h"	#include "pa_vclass.h"
Line 34 static const char * const IDENT_REQUEST_	Line 33 static const char * const IDENT_REQUEST_
#include "pa_vconsole.h"	#include "pa_vconsole.h"
#include "pa_vdate.h"	#include "pa_vdate.h"

	volatile const char * IDENT_PA_REQUEST_C="$Id$" IDENT_PA_REQUEST_H IDENT_PA_REQUEST_CHARSETS_H IDENT_PA_REQUEST_INFO_H IDENT_PA_VCONSOLE_H;

// consts	// consts

#define UNHANDLED_EXCEPTION_METHOD_NAME "unhandled_exception"	#define UNHANDLED_EXCEPTION_METHOD_NAME "unhandled_exception"

/// content type of exception response, when no @MAIN:exception handler defined
const char* UNHANDLED_EXCEPTION_CONTENT_TYPE="text/plain";

/// content type of response when no $MAIN:defaults.content-type defined	/// content type of response when no $MAIN:defaults.content-type defined
const char* DEFAULT_CONTENT_TYPE="text/html";	const char* DEFAULT_CONTENT_TYPE="text/html";
const char* ORIGINS_CONTENT_TYPE="text/plain";
	const uint LOOP_LIMIT=20000;
	const uint EXECUTE_RECOURSION_LIMIT=1000;
	const size_t FILE_SIZE_LIMIT=51210241024;

// defines for globals	// defines for globals

#define MAIN_METHOD_NAME "main"	#define MAIN_METHOD_NAME "main"
#define AUTO_METHOD_NAME "auto"	#define AUTO_METHOD_NAME "auto"
	#define USE_METHOD_NAME "use"
#define AUTOUSE_METHOD_NAME "autouse"	#define AUTOUSE_METHOD_NAME "autouse"
#define BODY_NAME "body"
#define EXCEPTION_TYPE_PART_NAME "type"	#define EXCEPTION_TYPE_PART_NAME "type"
#define EXCEPTION_SOURCE_PART_NAME "source"	#define EXCEPTION_SOURCE_PART_NAME "source"
#define EXCEPTION_COMMENT_PART_NAME "comment"	#define EXCEPTION_COMMENT_PART_NAME "comment"

	#define ORIGIN_KEY "origin"

// globals	// globals

const String main_method_name(MAIN_METHOD_NAME);	const String main_method_name(MAIN_METHOD_NAME);
const String auto_method_name(AUTO_METHOD_NAME);	const String auto_method_name(AUTO_METHOD_NAME);
const String autouse_method_name(AUTOUSE_METHOD_NAME);	static const String use_method_name(USE_METHOD_NAME);
	static const String autouse_method_name(AUTOUSE_METHOD_NAME);

const String body_name(BODY_NAME);
const String exception_type_part_name(EXCEPTION_TYPE_PART_NAME);	const String exception_type_part_name(EXCEPTION_TYPE_PART_NAME);
const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME);	const String exception_source_part_name(EXCEPTION_SOURCE_PART_NAME);
const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME);	const String exception_comment_part_name(EXCEPTION_COMMENT_PART_NAME);
const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME);	const String exception_handled_part_name(EXCEPTION_HANDLED_PART_NAME);

	static const String origin_key(ORIGIN_KEY);

	int pa_loop_limit=LOOP_LIMIT;
	int pa_execute_recoursion_limit=EXECUTE_RECOURSION_LIMIT;
	size_t pa_file_size_limit=FILE_SIZE_LIMIT;

// defines for statics	// defines for statics

#define CHARSETS_NAME "CHARSETS"	#define CHARSETS_NAME "CHARSETS"
#define MIME_TYPES_NAME "MIME-TYPES"	#define MIME_TYPES_NAME "MIME-TYPES"
#define ORIGINS_MODE_NAME "ORIGINS"	#define STRICT_VARS_NAME "STRICT-VARS"
	#define PROTOTYPE_NAME "OBJECT-PROTOTYPE"
	#define LIMITS_NAME "LIMITS"
	#define LOOP_LIMIT_NAME "max_loop"
	#define RECOURSION_LIMIT_NAME "max_recoursion"
	#define FILE_SIZE_LIMIT_NAME "max_file_size"
	#define LOCK_WAIT_TIMEOUT_NAME "lock_wait_timeout"
#define CONF_METHOD_NAME "conf"	#define CONF_METHOD_NAME "conf"
#define POST_PROCESS_METHOD_NAME "postprocess"	#define POST_PROCESS_METHOD_NAME "postprocess"
#define DOWNLOAD_NAME "download"
#define CLASS_PATH_NAME "CLASS_PATH"	#define CLASS_PATH_NAME "CLASS_PATH"
#define RESPONSE_BODY_FILE_NAME "file"	#define RESPONSE_BODY_FILE_NAME "file"

	#define DOWNLOAD_NAME_UPPER "DOWNLOAD"
	#define BODY_NAME_UPPER "BODY"

// statics	// statics

static const String charsets_name(CHARSETS_NAME);	static const String charsets_name(CHARSETS_NAME);
static const String main_class_name(MAIN_CLASS_NAME);	static const String main_class_name(MAIN_CLASS_NAME);
static const String mime_types_name(MIME_TYPES_NAME);	static const String mime_types_name(MIME_TYPES_NAME);
static const String origins_mode_name(ORIGINS_MODE_NAME);	static const String strict_vars_name(STRICT_VARS_NAME);
	static const String prototype_name(PROTOTYPE_NAME);
	static const String limits_name(LIMITS_NAME);
	static const String loop_limit_name(LOOP_LIMIT_NAME);
	static const String recoursion_limit_name(RECOURSION_LIMIT_NAME);
	static const String file_size_limit_name(FILE_SIZE_LIMIT_NAME);
	static const String lock_wait_timeout_name(LOCK_WAIT_TIMEOUT_NAME);

static const String conf_method_name(CONF_METHOD_NAME);	static const String conf_method_name(CONF_METHOD_NAME);
static const String post_process_method_name(POST_PROCESS_METHOD_NAME);	static const String post_process_method_name(POST_PROCESS_METHOD_NAME);
static const String download_name(DOWNLOAD_NAME);
static const String class_path_name(CLASS_PATH_NAME);	static const String class_path_name(CLASS_PATH_NAME);
static const String response_body_file_name(RESPONSE_BODY_FILE_NAME);	static const String response_body_file_name(RESPONSE_BODY_FILE_NAME);

	static const String download_name_upper(DOWNLOAD_NAME_UPPER);
	static const String body_name_upper(BODY_NAME_UPPER);

	// more static

	static const String content_type_name_upper(HTTP_CONTENT_TYPE_UPPER);
	static const String content_disposition_name_upper(CONTENT_DISPOSITION_UPPER);
	static const String content_disposition_inline(CONTENT_DISPOSITION_INLINE);
	static const String content_disposition_attachment(CONTENT_DISPOSITION_ATTACHMENT);

// defines	// defines

	#define CHARSET_NAME_UPPER "CHARSET"
	#define LAST_MODIFIED_NAME_UPPER "LAST-MODIFIED"

// op.C	// op.C
VStateless_class& VClassMAIN_create();	VStateless_class& VClassMAIN_create();

//	//
Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,	Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info,
String::Language adefault_lang, bool status_allowed):	String::Language adefault_lang):
// private	// private
anti_endless_execute_recoursion(0),	anti_endless_execute_recoursion(0),
anti_endless_json_string_recoursion(0),

// public	// public
	allow_class_replace(false),
method_frame(0),	method_frame(0),
rcontext(0),	rcontext(0),
wcontext(0),	wcontext(0),
flang(adefault_lang),	flang(adefault_lang),
fconnection(0),	fconnection(0),
finterrupted(false),
fskip(SKIP_NOTHING),
fin_cycle(0),	fin_cycle(0),
	fskip(SKIP_NOTHING),
// public
#ifdef RESOURCES_DEBUG
sql_connect_time(0),
sql_request_time(0),
#endif

// public	// public
request_info(arequest_info),	request_info(arequest_info),
sapi_info(asapi_info),	sapi_info(asapi_info),
charsets(UTF8_charset, UTF8_charset, UTF8_charset), // default charsets	charsets(pa_UTF8_charset, pa_UTF8_charset, pa_UTF8_charset), // default charsets

main_class(VClassMAIN_create()),	main_class(VClassMAIN_create()),
form(*new VForm(charsets, arequest_info)),	form(*new VForm(charsets, arequest_info)),
Line 141 Request::Request(SAPI_Info& asapi_info,	Line 171 Request::Request(SAPI_Info& asapi_info,
pa_register_thread_request(*this);	pa_register_thread_request(*this);

// file_no=0 => unknown	// file_no=0 => unknown
file_list+=String::Body("UNKNOWN");	file_list+="UNKNOWN";
file_list+=String::Body("-body of process-"); // pseudo_file_no__process	file_list+="-body of process-"; // pseudo_file_no__process

// maybe expire old caches	// maybe expire old caches
cache_managers->maybe_expire();	cache_managers->maybe_expire();

/// directly used	/// directly used
// MAIN class, operators	// MAIN class, operators
classes().put(main_class.name(), &main_class);	put_class(&main_class);
// classes:	// classes:
// table, file, random, mail, image, ...	// table, file, random, mail, image, ...
methoded_array().register_directly_used(*this);	methoded_array().register_directly_used(*this);

/// methodless	/// methodless

// env class	// env class
classes().put(String::Body(ENV_CLASS_NAME), new VEnv(asapi_info));	put_class(new VEnv(asapi_info));
// status class	// status class
if(status_allowed)	put_class(new VStatus());
classes().put(String::Body(STATUS_CLASS_NAME), new VStatus());
// request class	// request class
classes().put(String::Body(REQUEST_CLASS_NAME), new VRequest(arequest_info, charsets, form));	put_class(new VRequest(arequest_info, charsets, form, asapi_info));
// cookie class	// cookie class
classes().put(String::Body(COOKIE_CLASS_NAME), &cookie);	put_class(&cookie);
// console class	// console class
classes().put(String::Body(CONSOLE_CLASS_NAME), &console);	put_class(&console);

/// methoded	/// methoded
// response class
classes().put(response.get_class()->name(), &response);

/// bases used	// response class
	put_class(&response);
// form class	// form class
classes().put(form.get_class()->base_class()->name(), &form);	put_class(&form);
// mail class	// mail class
classes().put(mail.get_class()->base_class()->name(), &mail);	put_class(&mail);
// math class	// math class
{	put_class(new VMath);
Value& math=*new VMath;
classes().put(math.get_class()->base_class()->name(), &math);
}
// memory class	// memory class
{	put_class(new VMemory);
Value& memory=*new VMemory;
classes().put(memory.get_class()->base_class()->name(), &memory);
}
}	}

Request::~Request() {	Request::~Request() {
Line 192 Request::~Request() {	Line 216 Request::~Request() {
// if for some strange reason xml generic errors failed to be reported, free them up	// if for some strange reason xml generic errors failed to be reported, free them up
if(const char* xml_generic_errors=xmlGenericErrors()) {	if(const char* xml_generic_errors=xmlGenericErrors()) {
SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);	SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors);
free((void *)xml_generic_errors);	pa_free((void *)xml_generic_errors);
}	}
#endif	#endif
}	}

Value& Request::get_self() { return method_frame/always have!/->self(); }	Value& Request::get_self() { return method_frame/always have!/->self(); }

Value* Request::get_class(const String& name){	VStateless_class* Request::get_class(const String& name){
Value* result=classes().get(name);	VStateless_class* result=classes().get(name);
if(!result)	if(!result)
if(Value* value=main_class.get_element(autouse_method_name))	if(const Method *method=main_class.get_element_method(autouse_method_name)){
if(Junction* junction=value->get_junction())	Value *vname=new VString(name);
if(const Method *method=junction->method) {	CONSTRUCTOR_FRAME_ACTION(method, 0 /no parent*/, main_class, {
Value *vname=new VString(name);	frame.store_params(&vname, 1);
VMethodFrame frame(method, 0 /no parent*/, main_class);	// we don't need the result
	call(frame);
frame.store_params(&vname, 1);	});
// we don't need the result	result=classes().get(name);
execute_method(frame);	}

result=classes().get(name);
}

return result;	return result;
}	}

static void load_charset(HashStringValue::key_type akey,	static void load_charset(HashStringValue::key_type akey, HashStringValue::value_type avalue, Request_charsets* charsets) {
HashStringValue::value_type avalue,	pa_charsets.load_charset(*charsets, akey, avalue->as_string());
Request_charsets* charsets) {
const String::Body NAME=String(akey, String::L_CLEAN).change_case(charsets->source(), String::CC_UPPER);
::charsets.load_charset(*charsets, NAME, avalue->as_string());
}	}

void Request::configure_admin(VStateless_class& conf_class) {	void Request::configure_admin(VStateless_class& conf_class) {
if(configure_admin_done)	if(configure_admin_done)
throw Exception(PARSER_RUNTIME,	throw Exception(PARSER_RUNTIME, 0, "parser already configured");
0,
"parser already configured");
configure_admin_done=true;	configure_admin_done=true;

// charsets must only be specified in method_frame config	// charsets must only be specified in method_frame config
Line 240 void Request::configure_admin(VStateless	Line 256 void Request::configure_admin(VStateless
]	]
*/	*/
if(Value* vcharsets=conf_class.get_element(charsets_name)) {	if(Value* vcharsets=conf_class.get_element(charsets_name)) {
if(!vcharsets->is_string())	if(!vcharsets->is_string()) {
if(HashStringValue* charsets=vcharsets->get_hash())	if(HashStringValue* charsets=vcharsets->get_hash())
charsets->for_each<Request_charsets*>(load_charset, &this->charsets);	charsets->for_each<Request_charsets*>(load_charset, &this->charsets);
else	else
throw Exception(PARSER_RUNTIME,	throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");
0,	}
"$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash");	}

	#ifdef STRICT_VARS
	VVoid::strict_vars=false;
	if(Value* strict_vars=conf_class.get_element(strict_vars_name)) {
	if(strict_vars->is_bool())
	VVoid::strict_vars=strict_vars->as_bool();
	else
	throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" STRICT_VARS_NAME " must be bool");
	}
	#endif

	#ifdef OBJECT_PROTOTYPE
	VClass::prototype=true;
	if(Value* prototype=conf_class.get_element(prototype_name)) {
	if(prototype->is_bool())
	VClass::prototype=prototype->as_bool();
	else
	throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":" PROTOTYPE_NAME " must be bool");
}	}
	#endif

	Value* limits=conf_class.get_element(limits_name);

	pa_loop_limit=LOOP_LIMIT;
	if(limits)
	if(Value* loop_limit=limits->get_element(loop_limit_name)) {
	if(loop_limit->is_evaluated_expr()) {
	pa_loop_limit=loop_limit->as_int();
	if(pa_loop_limit==0) pa_loop_limit=INT_MAX;
	} else
	throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." LOOP_LIMIT_NAME " must be int");
	}

	pa_execute_recoursion_limit=EXECUTE_RECOURSION_LIMIT;
	if(limits)
	if(Value* recoursion_limit=limits->get_element(recoursion_limit_name)) {
	if(recoursion_limit->is_evaluated_expr()) {
	pa_execute_recoursion_limit=recoursion_limit->as_int();
	if(pa_execute_recoursion_limit==0) pa_execute_recoursion_limit=INT_MAX;
	} else
	throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." RECOURSION_LIMIT_NAME " must be int");
	}

	pa_file_size_limit=FILE_SIZE_LIMIT;
	if(limits)
	if(Value* file_size_limit=limits->get_element(file_size_limit_name)) {
	if(file_size_limit->is_evaluated_expr()) {
	double limit=file_size_limit->as_double();
	if(limit >= (double)SSIZE_MAX)
	throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." FILE_SIZE_LIMIT_NAME " must be less then %.15g", (double)SSIZE_MAX);
	pa_file_size_limit=(size_t)limit;
	if(pa_file_size_limit==0) pa_file_size_limit=SSIZE_MAX;
	} else
	throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." FILE_SIZE_LIMIT_NAME " must be number");
	}

	pa_lock_attempts=PA_LOCK_ATTEMPTS;
	if(limits)
	if(Value* lock_wait_timeout=limits->get_element(lock_wait_timeout_name)) {
	if(lock_wait_timeout->is_evaluated_expr()) {
	double limit=lock_wait_timeout->as_double();
	if(limit >= 3600*24)
	throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." LOCK_WAIT_TIMEOUT_NAME " must be less then %d", 3600*24);
	pa_lock_attempts=(unsigned int)(limit*2)+1;
	} else
	throw Exception(PARSER_RUNTIME, 0, "$" MAIN_CLASS_NAME ":LIMITS." LOCK_WAIT_TIMEOUT_NAME " must be number");
	}

// configure method_frame options	// configure method_frame options
// until someone with less privileges have overriden them	// until someone with less privileges have overriden them
methoded_array().configure_admin(*this);	methoded_array().configure_admin(*this);
}	}

const char* Request::get_exception_cstr(	const char* Request::get_exception_cstr(const Exception& e, Request::Exception_details& details) {
const Exception& e,
Request::Exception_details& details) {
#define PA_URI_FORMAT "%s: "	#define PA_URI_FORMAT "%s: "
	#define PA_COMMENT_TYPE_FORMAT "%s [%s]"

#define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "	#define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): "
#define PA_SOURCE_FORMAT "'%s' "	#define PA_SOURCE_FORMAT "'%s' "
#define PA_COMMENT_TYPE_FORMAT "%s [%s]"
	#define PA_ORIGIN_FILE_POS_VALUE file_list[details.origin.file_no].cstr(), 1+details.origin.line, 1+details.origin.col,
	#define PA_SOURCE_VALUE details.problem_source->cstr(),

	#define EXCEPTION_CSTR(f1,v1,f2,v2) \
	snprintf(result, MAX_STRING, \
	PA_URI_FORMAT \
	f1 f2 \
	PA_COMMENT_TYPE_FORMAT, \
	request_info.uri, \
	v1 v2 \
	e.comment(), e.type() \
	);

char* result=new(PointerFreeGC) char[MAX_STRING];	char* result=new(PointerFreeGC) char[MAX_STRING];

if(details.problem_source) { // do we know the guy?	if(details.problem_source) { // do we know the guy?
if(details.trace) { // do whe know where he came from?	if(details.origin.file_no) // do whe know where he came from?
Operation::Origin origin=details.trace.origin();	EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE, PA_SOURCE_FORMAT, PA_SOURCE_VALUE)
snprintf(result, MAX_STRING,	else
PA_URI_FORMAT	EXCEPTION_CSTR(PA_SOURCE_FORMAT, PA_SOURCE_VALUE,,)
PA_ORIGIN_FILE_POS_FORMAT	} else {
PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,	if(details.origin.file_no) // do whe know where he came from?
request_info.uri,	EXCEPTION_CSTR(PA_ORIGIN_FILE_POS_FORMAT, PA_ORIGIN_FILE_POS_VALUE,,)
file_list[origin.file_no].cstr(), 1+origin.line, 1+origin.col,	else
details.problem_source->cstr(),	EXCEPTION_CSTR(,,,)
e.comment(), e.type()	}
);
} else
snprintf(result, MAX_STRING,
PA_URI_FORMAT
PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT,
request_info.uri,
details.problem_source->cstr(),
e.comment(), e.type()
);
} else
snprintf(result, MAX_STRING,
PA_URI_FORMAT
PA_COMMENT_TYPE_FORMAT,
request_info.uri,
e.comment(), e.type()
);

return result;	return result;
}	}
Line 318 void Request::configure() {	Line 398 void Request::configure() {
@test log stack trace	@test log stack trace

*/	*/
void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) {	void Request::core(const char* config_filespec, bool header_only) {
#ifdef RESOURCES_DEBUG
//measures
struct timeval mt[10];
//measure:before all
gettimeofday(&mt[0],NULL);
#endif
try {	try {
	// loading config
	if(config_filespec)
	use_file_directly(main_class, new String(config_filespec), true, true /file must exist if 'fail on read problem' not set*/);

// filling mail received	// filling mail received
mail.fill_received(*this);	mail.fill_received(*this);

// loading config
if(config_filespec) {
const String& filespec=*new String(config_filespec);
use_file_directly(main_class,
filespec,
config_fail_on_read_problem,
true /file must exist if 'fail on read problem' not set/);
}

// loading auto.p files from document_root/..	// loading auto.p files from document_root/..
// to the one beside requested file.	// to the one beside requested file.
// all assigned bases from upper dir	// all assigned bases from upper dir
Line 353 gettimeofday(&mt[0],NULL);	Line 422 gettimeofday(&mt[0],NULL);
while(const char* before=strchr(after, '/')) {	while(const char* before=strchr(after, '/')) {
String& sfile_spec=*new String;	String& sfile_spec=*new String;
if(after!=request_info.path_translated) {	if(after!=request_info.path_translated) {
sfile_spec.append_strdup(	sfile_spec.append_strdup(request_info.path_translated, before-request_info.path_translated, String::L_CLEAN);
request_info.path_translated, before-request_info.path_translated,
String::L_CLEAN);
sfile_spec << "/" AUTO_FILE_NAME;	sfile_spec << "/" AUTO_FILE_NAME;

use_file_directly(main_class,	use_file_directly(main_class, sfile_spec, true /fail on read problem/, false /but ignore absence, sole user/);
sfile_spec,
true /fail on read problem/,
false /but ignore absence, sole user/);
}	}
for(after=before+1;*after=='/';after++);	for(after=before+1;*after=='/';after++);
}	}
Line 379 gettimeofday(&mt[0],NULL);	Line 443 gettimeofday(&mt[0],NULL);
rethrow;	rethrow;
}	}

#ifdef RESOURCES_DEBUG
//measure:after compile
gettimeofday(&mt[1],NULL);
#endif
// execute @main[]	// execute @main[]
const String* body_string=execute_virtual_method(main_class, main_method_name);	const String* body_string=execute_method(main_class, main_method_name);
if(!body_string)	if(!body_string)
throw Exception(PARSER_RUNTIME,	throw Exception(PARSER_RUNTIME, 0, "'" MAIN_METHOD_NAME "' method not found");
0,
"'"MAIN_METHOD_NAME"' method not found");

#ifdef RESOURCES_DEBUG
//measure:after main
gettimeofday(&mt[2],NULL);
#endif

// extract response body	// extract response body
Value* body_value=response.fields().get(download_name); // $response:download?	Value* body_value=response.fields().get(download_name_upper); // $response:download?
bool as_attachment=body_value!=0;	bool as_attachment=body_value!=0;
if(!body_value)	if(!body_value)
body_value=response.fields().get(body_name); // $response:body	body_value=response.fields().get(body_name_upper); // $response:body
if(!body_value)	if(!body_value)
body_value=new VString(*body_string); // just result of ^main[]	body_value=new VString(*body_string); // just result of ^main[]

// @postprocess	// @postprocess
if(Value* value=main_class.get_element(post_process_method_name))	if(const Method *method=main_class.get_method(post_process_method_name)) {
if(Junction* junction=value->get_junction())	// preparing to pass parameters to
if(const Method *method=junction->method) {	// @postprocess[data]
// preparing to pass parameters to	METHOD_FRAME_ACTION(method, 0 /no parent*/, main_class, {
// @postprocess[data]	frame.store_params(&body_value, 1);
VMethodFrame frame(method, 0 /no parent*/, main_class);	call(frame);
	body_value=&frame.result();
frame.store_params(&body_value, 1);	});
execute_method(frame);	}

body_value=&frame.result().as_value();
}

VFile* body_file=body_value->as_vfile(flang, &charsets);	VFile* body_file=body_value->as_vfile(flang, &charsets);

#ifdef RESOURCES_DEBUG
//measure:after postprocess
gettimeofday(&mt[3],NULL);
#endif

// OK. write out the result	// OK. write out the result
output_result(body_file, header_only, as_attachment);	output_result(body_file, header_only, as_attachment);

#ifdef RESOURCES_DEBUG
//measure:after output_result
gettimeofday(&mt[9],NULL);
t[9]=mt[9].tv_sec+mt[9].tv_usec/1000000.0;

double t[10];
for(int i=0;i<10;i++)
t[i]=mt[i].tv_sec+mt[i].tv_usec/1000000.0;
//measure:log2 compile,main,postprocess,output
SAPI::log("rmeasure: %s,%.2f,%.2f,%.2f %.2f,%.2f %.2f",
request_info.uri,
t[1]-t[0],
t[2]-t[1],
t[3]-t[2],
sql_connect_time,sql_request_time,
t[9]-t[3]
);
#endif
} catch(const Exception& e) { // request handling problem	} catch(const Exception& e) { // request handling problem
try {	try {
// we're returning not result, but error explanation	// we're returning not result, but error explanation
Line 463 t[9]-t[3]	Line 490 t[9]-t[3]

// maybe we'd be lucky enough as to report an error	// maybe we'd be lucky enough as to report an error
// in a gracefull way...	// in a gracefull way...
if(Value* value=main_class.get_element(*new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {	if(const Method method=main_class.get_method(new String(UNHANDLED_EXCEPTION_METHOD_NAME))) {
if(Junction* junction=value->get_junction()) {	// preparing to pass parameters to
if(const Method *method=junction->method) {	// @unhandled_exception[exception;stack]
// preparing to pass parameters to
// @unhandled_exception[exception;stack]	// $stack[^table::create{name file lineno colno}]
	Table::columns_type stack_trace_columns(new ArrayString);
// $stack[^table::create{name file lineno colno}]	*stack_trace_columns+=new String("name");
Table::columns_type stack_trace_columns(new ArrayString);	*stack_trace_columns+=new String("file");
*stack_trace_columns+=new String("name");	*stack_trace_columns+=new String("lineno");
*stack_trace_columns+=new String("file");	*stack_trace_columns+=new String("colno");
*stack_trace_columns+=new String("lineno");	Table& stack_trace=*new Table(stack_trace_columns);
*stack_trace_columns+=new String("colno");	if(!exception_trace.is_empty()/signed!/)
Table& stack_trace=*new Table(stack_trace_columns);	for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {
if(!exception_trace.is_empty()/signed!/)	Trace trace=exception_trace.get(i);
for(size_t i=exception_trace.bottom_index(); i<exception_trace.top_index(); i++) {	Table::element_type row(new ArrayString);
Trace trace=exception_trace.get(i);
Table::element_type row(new ArrayString);	*row+=trace.name(); // name column
	Operation::Origin origin=trace.origin();
*row+=trace.name(); // name column	if(origin.file_no) {
Operation::Origin origin=trace.origin();	*row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column
if(origin.file_no) {	*row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column
*row+=new String(file_list[origin.file_no], String::L_TAINTED); // 'file' column	*row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column
*row+=new String(String::Body::Format(1+origin.line), String::L_CLEAN); // 'lineno' column	}
*row+=new String(String::Body::Format(1+origin.col), String::L_CLEAN); // 'colno' column	stack_trace+=row;
}
stack_trace+=row;
}

// future $response:body=
// execute ^unhandled_exception[exception;stack]
exception_trace.clear(); // forget all about previous life, in case there would be error inside of this method, error handled would not be mislead by old stack contents (see extract_origin)

VMethodFrame frame(method, 0 /no caller*/, main_class);
Value *params[]={&details.vhash, new VTable(&stack_trace)};

frame.store_params(params, 2);
execute_method(frame);

body_string=&frame.result().as_string();
}	}
}
}

if(!body_string) { // couldn't report an error beautifully?
// doing that ugly

// future $response:content-type	// future $response:body=
response.fields().put(http_content_type, new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE)));	// execute ^unhandled_exception[exception;stack]
// future $response:body	exception_trace.clear(); // forget all about previous life, in case there would be error inside of this method, error handled would not be mislead by old stack contents (see extract_origin)
body_string=new String(exception_cstr);
	Value *params[]={&details.vhash, new VTable(&stack_trace)};
	METHOD_FRAME_ACTION(method, 0 /no caller*/, main_class, {
	frame.store_params(params, 2);
	call(frame);
	body_string=&frame.result().as_string();
	});
}	}

VString body_vstring(*body_string);
VFile* body_file=body_vstring.as_vfile(flang, &charsets);

// conditionally log it	// conditionally log it
Value* vhandled=details.vhash.hash().get(exception_handled_part_name);	Value* vhandled=details.vhash.hash().get(exception_handled_part_name);
if(!vhandled \|\| !vhandled->as_bool()) {	if(!vhandled \|\| !vhandled->as_bool()) {
SAPI::log(sapi_info, "%s", exception_cstr);	SAPI::log(sapi_info, "%s", exception_cstr);
}	}

// ERROR. write it out	if(body_string) { // could report an error beautifully?
output_result(body_file, header_only, false);	VString body_vstring(*body_string);
	VFile* body_file=body_vstring.as_vfile(flang, &charsets);
	// write it out the error
	output_result(body_file, header_only, false);
	} else {
	// doing that ugly
	SAPI::send_error(sapi_info, exception_cstr, !strcmp(e.type(), "file.missing") ? "404" : "500");
	}

} catch(const Exception& e) { // exception in unhandled exception	} catch(const Exception& e) { // exception in unhandled exception
Request::Exception_details details=get_details(e);	Request::Exception_details details=get_details(e);
const char* exception_cstr=get_exception_cstr(e, details);	const char* exception_cstr=get_exception_cstr(e, details);
// unconditionally log the beast	// unconditionally log the beast in exception handler
SAPI::log(sapi_info, "%s", exception_cstr);	throw Exception(0, 0, "Unhandled exception in %s", exception_cstr);

throw Exception(0,
0,
"in %s",
exception_cstr);
}	}
}	}
}	}
Line 546 uint Request::register_file(String::Body	Line 558 uint Request::register_file(String::Body
return file_list.count()-1;	return file_list.count()-1;
}	}

void Request::use_file_directly(VStateless_class& aclass,	void Request::use_file_directly(VStateless_class& aclass, const String& file_spec, bool fail_on_read_problem, bool fail_on_file_absence) {
const String& file_spec,
bool fail_on_read_problem,
bool fail_on_file_absence) {

// cyclic dependence check	// cyclic dependence check
if(used_files.get(file_spec))	if(used_files.get(file_spec))
return;	return;
Line 565 void Request::use_file_directly(VStatele	Line 573 void Request::use_file_directly(VStatele
}	}


void Request::use_file(VStateless_class& aclass,	void Request::use_file(VStateless_class& aclass, const String& file_name, const String* use_filespec/absolute/) {
const String& file_name,	if(file_name.is_empty())
const String* use_filespec/absolute/) {	throw Exception(PARSER_RUNTIME, 0, "usage failed - no filename was specified");

const String* filespec=0;	const String* filespec=0;

if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]	if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH]
filespec=&absolute(file_name);	filespec=&absolute(file_name);
else if(use_filespec){ // search in current dir first	else if(use_filespec){ // search in current dir first
int afterslash=lastposafter(*use_filespec, 0, "/", 1, true);	size_t last_slash_pos=use_filespec->strrpbrk("/");
if(afterslash>0)	if(last_slash_pos!=STRING_NOT_FOUND)
filespec=file_exist(use_filespec->mid(0, afterslash-1), file_name); // found in current dir?	filespec=file_exist(use_filespec->mid(0, last_slash_pos), file_name); // found in current dir?
}	}

if(!filespec){	if(!filespec){
Line 594 void Request::use_file(VStateless_class&	Line 602 void Request::use_file(VStateless_class&
break; // found along class_path	break; // found along class_path
}	}
} else	} else
throw Exception(PARSER_RUNTIME,	throw Exception(PARSER_RUNTIME, 0, "$" CLASS_PATH_NAME " must be string or table");
0,
"$" CLASS_PATH_NAME " must be string or table");
if(!filespec)	if(!filespec)
throw Exception(PARSER_RUNTIME,	throw Exception(PARSER_RUNTIME, &file_name, "not found along $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
&file_name,
"not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME);
} else	} else
throw Exception(PARSER_RUNTIME,	throw Exception(PARSER_RUNTIME, &file_name, "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
&file_name,
"usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified");
}	}

use_file_directly(aclass, *filespec);	use_file_directly(aclass, *filespec);
}	}

	void Request::use_file(const String& file_name, const String* use_filespec/absolute/, Operation::Origin origin) {
	static String use("USE");
	try {
	static VHash* voptions=new VHash();
	if(const Method *method=main_class.get_method(use_method_name)){
	Value *params[]={new VString(file_name), voptions};
	voptions->hash().put(origin_key, new VString(*use_filespec));

	CONSTRUCTOR_FRAME_ACTION(method, 0 /no parent*/, main_class, {
	frame.store_params(params, 2);
	// we don't need the result
	call(frame);
	});
	}
	} catch (...) {
	exception_trace.push(Trace(&use, origin));
	rethrow;
	}
	}

void Request::use_buf(VStateless_class& aclass,	void Request::use_buf(VStateless_class& aclass, const char* source, const String* main_alias, uint file_no, int line_no_offset) {
const char* source, const String* main_alias,	// temporary zero @conf to avoid it second execution
uint file_no,
int line_no_offset) {
// temporary zero @conf so to maybe-replace it in compiled code
Temp_method temp_method_conf(aclass, conf_method_name, 0);	Temp_method temp_method_conf(aclass, conf_method_name, 0);
// temporary zero @auto so to maybe-replace it in compiled code	// temporary zero @auto to avoid it second execution
Temp_method temp_method_auto(aclass, auto_method_name, 0);	Temp_method temp_method_auto(aclass, auto_method_name, 0);

// compile loaded classes	// compile loaded classes
Line 630 void Request::use_buf(VStateless_class&	Line 648 void Request::use_buf(VStateless_class&
VStateless_class& cclass=*cclasses.get(i);	VStateless_class& cclass=*cclasses.get(i);

// locate and execute possible @conf[] static	// locate and execute possible @conf[] static
Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass,	if(execute_method_if_exists(cclass, conf_method_name, vfilespec))
conf_method_name, vfilespec,
false/no string result needed/);
if(executed.method)
configure_admin(cclass/, executed.method->name/);	configure_admin(cclass/, executed.method->name/);

// locate and execute possible @auto[] static	// locate and execute possible @auto[] static
execute_nonvirtual_method(cclass,	execute_method_if_exists(cclass, auto_method_name, vfilespec);
auto_method_name, vfilespec,
false/no result needed/);	cclass.enable_default_setter();
}	}
}	}

const String& Request::relative(const char* apath, const String& relative_name) {	const String& Request::relative(const char* apath, const String& relative_name) {
char *hpath=strdup(apath);	char *hpath=pa_strdup(apath);
String& result=*new String;	String& result=*new String;
if(rsplit(hpath, '/')) // if something/splitted	if(rsplit(hpath, '/')) // if something/splitted
result << hpath << "/";	result << hpath << "/";
Line 654 const String& Request::relative(const ch	Line 669 const String& Request::relative(const ch

const String& Request::absolute(const String& relative_name) {	const String& Request::absolute(const String& relative_name) {
if(relative_name.first_char()=='/') {	if(relative_name.first_char()=='/') {
String& result=*new String(strdup(request_info.document_root));	String& result=*new String(pa_strdup(request_info.document_root));
result << relative_name;	result << relative_name;
return result;	return result;
} else	} else
Line 679 public:	Line 694 public:
bool add_last_modified;	bool add_last_modified;
};	};
#endif	#endif
static void add_header_attribute(	static void add_header_attribute(HashStringValue::key_type name, HashStringValue::value_type value, Add_header_attribute_info* info) {
HashStringValue::key_type name,	if(name==BODY_NAME_UPPER \|\| name==DOWNLOAD_NAME_UPPER \|\| name==CHARSET_NAME_UPPER)
HashStringValue::value_type value,
Add_header_attribute_info* info) {
if(name==BODY_NAME
\|\| name==DOWNLOAD_NAME
\|\| name==CHARSET_NAME)
return;	return;

	if(name==LAST_MODIFIED_NAME_UPPER)
	info->add_last_modified=false;

const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);	const char* aname=String(name, String::L_URI).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets);

SAPI::add_header_attribute(info->r.sapi_info,	SAPI::add_header_attribute(info->r.sapi_info,
aname,	aname,
attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)	attributed_meaning_to_string(*value, String::L_URI, false).untaint_and_transcode_cstr(String::L_URI, &info->r.charsets)
);	);

if(strcasecmp(aname, "last-modified")==0)
info->add_last_modified=false;
}	}

static void output_sole_piece(Request& r,	static void output_sole_piece(Request& r, bool header_only, VFile& body_file, Value* body_file_content_type) {
bool header_only,
VFile& body_file,
Value* body_file_content_type) {
// transcode text body when "text/*" or simple result	// transcode text body when "text/*" or simple result
String::C output(body_file.value_ptr(), body_file.value_size());	String::C output(body_file.value_ptr(), body_file.value_size());
if(!body_file_content_type/vstring.as_vfile/ \|\| body_file_content_type->as_string().pos("text/")==0)	if(!body_file_content_type/vstring.as_vfile/ \|\| body_file_content_type->as_string().pos("text/")==0)
output=Charset::transcode(output,	output=Charset::transcode(output, r.charsets.source(), r.charsets.client());
r.charsets.source(),
r.charsets.client());

// prepare header: Content-Length	// prepare header: Content-Length
SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));	SAPI::add_header_attribute(r.sapi_info, HTTP_CONTENT_LENGTH, format(output.length, "%u"));
Line 750 static void parse_range(const String* s,	Line 755 static void parse_range(const String* s,
}	}
}	}

static void output_pieces(Request& r,	static void output_pieces(Request& r, bool header_only, const String& filename, size_t content_length, Value& date, bool add_last_modified) {
bool header_only,
const String& filename,
size_t content_length,
Value& date,
bool add_last_modified)
{
SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");	SAPI::add_header_attribute(r.sapi_info, "accept-ranges", "bytes");

const size_t BUFSIZE = 10*0x400;	const size_t BUFSIZE = 128*0x400;
char buf[BUFSIZE];	char buf[BUFSIZE];
const char *range = SAPI::get_env(r.sapi_info, "HTTP_RANGE");	const char *range = SAPI::Env::get(r.sapi_info, "HTTP_RANGE");
size_t offset=0;	size_t offset=0;
size_t part_length=content_length;	size_t part_length=content_length;
if(range){	if(range){
Line 812 static void output_pieces(Request& r,	Line 811 static void output_pieces(Request& r,
size_t to_read = 0;	size_t to_read = 0;
size_t size = 0;	size_t size = 0;
do{	do{
to_read = part_length<BUFSIZE?part_length:BUFSIZE;	to_read = part_length < BUFSIZE ? part_length : BUFSIZE;
File_read_result read_result=file_read(r.charsets, filespec,	File_read_result read_result=file_read_binary(filespec, true /fail on problem/, buf, offset, to_read);
false /as text/, 0/params/, true/fail on problem/,
buf, offset, to_read);
to_read=read_result.length;	to_read=read_result.length;
if(to_read == 0)	if(to_read == 0)
break;	break;
Line 847 void Request::output_result(VFile* body_	Line 844 void Request::output_result(VFile* body_
name_cstr=after_slash;	name_cstr=after_slash;
if(char *after_slash=rsplit(name_cstr, '/'))	if(char *after_slash=rsplit(name_cstr, '/'))
name_cstr=after_slash;	name_cstr=after_slash;
vfile_name=new VString(*new String(name_cstr));	vfile_name=new VString(*new String(name_cstr));
}	}
}	}
if(vfile_name) {	if(vfile_name) {
Line 856 void Request::output_result(VFile* body_	Line 853 void Request::output_result(VFile* body_
VHash& hash=*new VHash();	VHash& hash=*new VHash();
HashStringValue &h=hash.hash();	HashStringValue &h=hash.hash();
h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));	h.put(value_name, new VString( as_attachment ? content_disposition_attachment : content_disposition_inline ));
h.put(content_disposition_filename_name, vfile_name);	h.put(content_disposition_filename_name, new VString(*new String(sfile_name, String::L_HTTP_HEADER)));

response.fields().put(content_disposition, &hash);	response.fields().put(content_disposition_name_upper, &hash);

if(!body_file_content_type)	if(!body_file_content_type)
body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));	body_file_content_type=new VString(mime_type_of(sfile_name.cstr()));
Line 868 void Request::output_result(VFile* body_	Line 865 void Request::output_result(VFile* body_
// set Content-Type	// set Content-Type
if(body_file_content_type) {	if(body_file_content_type) {
// body file content type	// body file content type
response.fields().put(content_type_name, body_file_content_type);	response.fields().put(content_type_name_upper, body_file_content_type);
} else {	} else {
// default content type	// default content type
response.fields().put_dont_replace(content_type_name, new VString(*new String(DEFAULT_CONTENT_TYPE)));	response.fields().put_dont_replace(content_type_name_upper, new VString(*new String(DEFAULT_CONTENT_TYPE)));
}	}

// prepare header: $response:fields without :body, :download and :charset	// prepare header: $response:fields without :body, :download and :charset
Line 881 void Request::output_result(VFile* body_	Line 878 void Request::output_result(VFile* body_
if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {	if(Value* vresponse_body_file=body_file->fields().get(response_body_file_name)) {
// $response:[download\|body][$.file[filespec]] -- optput specified file	// $response:[download\|body][$.file[filespec]] -- optput specified file
const String& sresponse_body_file=vresponse_body_file->as_string();	const String& sresponse_body_file=vresponse_body_file->as_string();
size_t content_length=0;	uint64_t content_length=0;
time_t atime=0, mtime=0, ctime=0;	time_t atime=0, mtime=0, ctime=0;
file_stat(absolute(sresponse_body_file),	file_stat(absolute(sresponse_body_file), content_length, atime, mtime, ctime);
content_length,
atime, mtime, ctime);

VDate* vdate=0;	VDate* vdate=0;
if(Value* v=body_file->fields().get("mdate")) {	if(Value* v=body_file->fields().get("mdate")) {
Line 895 void Request::output_result(VFile* body_	Line 890 void Request::output_result(VFile* body_
throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");	throw Exception(PARSER_RUNTIME, 0, "mdate must be a date");
}	}
if(!vdate)	if(!vdate)
vdate=new VDate(mtime);	vdate=new VDate((pa_time_t)mtime);

output_pieces(*this, header_only,	output_pieces(this, header_only, sresponse_body_file, (size_t)content_length, vdate, info.add_last_modified);
sresponse_body_file,
content_length,
*vdate,
info.add_last_modified);
} else {	} else {
if(body_file_content_type)	if(body_file_content_type)
if(HashStringValue *hash=body_file_content_type->get_hash())	if(HashStringValue *hash=body_file_content_type->get_hash())
body_file_content_type=hash->get(value_name);	body_file_content_type=hash->get(value_name);

output_sole_piece(*this, header_only,	output_sole_piece(this, header_only, body_file, body_file_content_type);
*body_file, body_file_content_type);
}	}
}	}

	const String& Request::mime_type_of(const String* file_name) {
	return mime_type_of(file_name?file_name->taint_cstr(String::L_FILE_SPEC):0);
	}

const String& Request::mime_type_of(const char* user_file_name_cstr) {	const String& Request::mime_type_of(const char* user_file_name_cstr) {
if(mime_types)	if(mime_types)
if(const char* cext=strrchr(user_file_name_cstr, '.')) {	if(const char* cext=strrchr(user_file_name_cstr, '.')) {
String sext(++cext);	String sext(++cext);
Table::Action_options options;	Table::Action_options options;
if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options))	if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) {
if(const String* result=mime_types->item(1))	if(const String* result=mime_types->item(1))
return *result;	return *result;
else	else
throw Exception(PARSER_RUNTIME,	throw Exception(PARSER_RUNTIME, 0, MIME_TYPES_NAME " table column elements must not be empty");
0,	}
MIME_TYPES_NAME " table column elements must not be empty");
}	}

return *new String("application/octet-stream");	return *new String("application/octet-stream");
}	}

const String* Request::get_used_filename(uint file_no){	const String* Request::get_used_filespec(uint file_no){
if(file_no < file_list.count())	if(file_no < file_list.count())
return new String(file_list[file_no], String::L_TAINTED);	return new String(file_list[file_no], String::L_TAINTED);
return 0;	return 0;
Line 949 const String& Request::transcode(const x	Line 942 const String& Request::transcode(const x
}	}
#endif	#endif


const Request::Trace Request::Exception_trace::extract_origin(const String*& problem_source) {
Trace result;
if(!is_empty()) {
result=bottom_value();
if(!problem_source) { // we don't know who trigged the bug?
problem_source=result.name(); // consider the stack-top-guy (we usually know source of next-from-throw-point exception) did that
fbottom++;
} else if(result.name()==problem_source) // it is that same guy?
fbottom++; // throw away that trace
else {
// stack top contains not us,
// leaving result intact
// it would help ^throw
}
}

return result;
}

Request::Exception_details Request::get_details(const Exception& e) {	Request::Exception_details Request::get_details(const Exception& e) {
const String* problem_source=e.problem_source();	const String* problem_source=e.problem_source();
Trace trace=exception_trace.extract_origin(problem_source);

VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();	VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash();
	Operation::Origin origin={0, 0, 0};

	if(!exception_trace.is_empty()) {
	Trace bottom=exception_trace.bottom_value();
	origin=bottom.origin();
	if(!problem_source) { // we don't know who trigged the bug
	problem_source=bottom.name(); // we usually know source of next-from-throw-point exception did that
	exception_trace.set_bottom_index(exception_trace.bottom_index()+1);
	} else if (bottom.name()==problem_source) { // it is that same guy?
	exception_trace.set_bottom_index(exception_trace.bottom_index()+1); // throw away that trace
	} else {
	// stack top contains not us, leaving intact to help ^throw
	}
	}

// $.type	// $.type
if(const char* type=e.type(true))	if(const char* type=e.type(true))
hash.put(exception_type_part_name, new VString(*new String(type)));	hash.put(exception_type_part_name, new VString(*new String(type)));

// $.source	// $.source
if(problem_source) {	if(problem_source)
String& source=new String(problem_source, String::L_TAINTED);	hash.put(exception_source_part_name, new VString(new String(problem_source, String::L_TAINTED)));
hash.put(exception_source_part_name, new VString(source));
}

// $.file lineno colno	// $.file $.lineno $.colno
if(trace) {	if(origin.file_no){
const Operation::Origin origin=trace.origin();	hash.put("file", new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));
hash.put(String::Body("file"),	hash.put("lineno", new VInt(1+origin.line));
new VString(*new String(file_list[origin.file_no], String::L_TAINTED)));	hash.put("colno", new VInt(1+origin.col));
hash.put(String::Body("lineno"), new VInt(1+origin.line));
hash.put(String::Body("colno"), new VInt(1+origin.col));
}	}

// $.comment	// $.comment
if(const char* comment=e.comment(true))	if(const char* comment=e.comment(true))
hash.put(exception_comment_part_name,	hash.put(exception_comment_part_name, new VString(*new String(comment, String::L_TAINTED)));
new VString(*new String(comment, String::L_TAINTED)));

// $.handled(0)	// $.handled(0)
hash.put(exception_handled_part_name, &VBool::get(false));	hash.put(exception_handled_part_name, &VBool::get(false));

return Request::Exception_details(trace, problem_source, vhash);	return Request::Exception_details(origin, problem_source, vhash);
	}

	Temp_value_element::Temp_value_element(Request& arequest, Value& awhere, const String& aname, Value* awhat) :
	frequest(arequest),
	fwhere(awhere),
	fname(aname),
	saved(awhere.get_element(aname))
	{
	Junction* junction;
	if(saved && (junction=saved->get_junction()) && junction->is_getter)
	saved=0;
	frequest.put_element(fwhere, aname, awhat);
	}

	Temp_value_element::~Temp_value_element() {
	frequest.put_element(fwhere, fname, saved ? saved : VVoid::get());
}	}

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Removed from v.1.324
changed lines
	Added in v.1.384