--- parser3/src/main/pa_request.C 2001/03/13 11:23:29 1.23 +++ parser3/src/main/pa_request.C 2003/11/20 15:35:32 1.255 @@ -1,176 +1,782 @@ -/* - Parser - Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) - Author: Alexander Petrosyan (http://design.ru/paf) +/** @file + Parser: request class main part. @see compile.C and execute.C. - $Id: pa_request.C,v 1.23 2001/03/13 11:23:29 paf Exp $ + Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) */ -#include +static const char* IDENT_REQUEST_C="$Date: 2003/11/20 15:35:32 $"; +#include "pa_sapi.h" +#include "pa_common.h" #include "pa_request.h" #include "pa_wwrapper.h" -#include "pa_common.h" #include "pa_vclass.h" -#include "_root.h" -#include "_env.h" -#include "_table.h" -#include "core.h" - -#include - -Request::Request(Pool& apool) : Pooled(apool), - stack(apool), - root_class(apool), - env_class(apool), - fclasses(apool), - fclasses_array(apool), - flang(String::Untaint_lang::HTML_TYPO) +#include "pa_globals.h" +#include "pa_vint.h" +#include "pa_vmethod_frame.h" +#include "pa_types.h" +#include "pa_venv.h" +#include "pa_vmath.h" +#include "pa_vstatus.h" +#include "pa_vrequest.h" +#include "pa_vtable.h" +#include "pa_vfile.h" +#include "pa_dictionary.h" +#include "pa_charset.h" +#include "pa_charsets.h" +#include "pa_cache_managers.h" +#include "pa_vmail.h" +#include "pa_vform.h" +#include "pa_vcookie.h" +#include "pa_vresponse.h" +#include "pa_vmemory.h" +#include "pa_vconsole.h" + +// consts + +const char* 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 +const char* DEFAULT_CONTENT_TYPE="text/html"; +const char* ORIGINS_CONTENT_TYPE="text/plain"; + +// defines for globals + +#define MAIN_METHOD_NAME "main" +#define AUTO_METHOD_NAME "auto" +#define BODY_NAME "body" +#define EXCEPTION_TYPE_PART_NAME "type" +#define EXCEPTION_SOURCE_PART_NAME "source" +#define EXCEPTION_COMMENT_PART_NAME "comment" + +// globals + +const String main_method_name(MAIN_METHOD_NAME); +const String auto_method_name(AUTO_METHOD_NAME); +const String content_disposition_name(CONTENT_DISPOSITION_NAME); +const String content_disposition_value(CONTENT_DISPOSITION_VALUE); +const String content_disposition_filename_name(CONTENT_DISPOSITION_FILENAME_NAME); +const String body_name(BODY_NAME); +const String exception_type_part_name(EXCEPTION_TYPE_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_handled_part_name(EXCEPTION_HANDLED_PART_NAME); + +// defines for statics + +#define CHARSETS_NAME "CHARSETS" +#define MIME_TYPES_NAME "MIME-TYPES" +#define ORIGINS_MODE_NAME "ORIGINS" +#define CONF_METHOD_NAME "conf" +#define POST_PROCESS_METHOD_NAME "postprocess" +#define DOWNLOAD_NAME "download" +#define CLASS_PATH_NAME "CLASS_PATH" + +// statics + +static const String charsets_name(CHARSETS_NAME); +static const String main_class_name(MAIN_CLASS_NAME); +static const String mime_types_name(MIME_TYPES_NAME); +static const String origins_mode_name(ORIGINS_MODE_NAME); +static const String conf_method_name(CONF_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); + +// defines + +// op.C +VStateless_class& VClassMAIN_create(); + +// +Request::Request(SAPI_Info& asapi_info, Request_info& arequest_info, + String::Language adefault_lang, bool status_allowed): + // private + anti_endless_execute_recoursion(0), + + // public + method_frame(0), + rcontext(0), + wcontext(0), + flang(adefault_lang), + fconnection(0), + finterrupted(false), + + // public +#ifdef RESOURCES_DEBUG + sql_connect_time(0), + sql_request_time(0), +#endif + + // public + sapi_info(asapi_info), + request_info(arequest_info), + charsets(UTF8_charset, UTF8_charset, UTF8_charset), // default charsets + + main_class(VClassMAIN_create()), + form(*new VForm), + mail(*new VMail), + response(*new VResponse(arequest_info, charsets)), + cookie(*new VCookie), + + // private + configure_admin_done(false), + + // private defaults + fdefault_lang(adefault_lang), + // private mime types + mime_types(0) { - // root class - initialize_root_class(pool(), root_class); - // adding root superclass, - // parent of all classes, - // operators holder - classes().put(*root_class_name, &root_class); - //root_class.set_name(*root_class_name); + // file_no=0 => unknown + file_list+=String::Body("UNKNOWN"); + file_list+=String::Body("-body of process-"); // pseudo_file_no__process + + // maybe expire old caches + cache_managers.maybe_expire(); + + /// directly used + // MAIN class, operators + classes().put(main_class.name(), &main_class); + // classes: + // table, file, random, mail, image, ... + methoded_array().register_directly_used(*this); + /// methodless // env class - initialize_env_class(pool(), env_class); - classes().put(*env_class_name, &env_class); + classes().put(String::Body(ENV_CLASS_NAME), new VEnv(asapi_info)); + // status class + if(status_allowed) + classes().put(String::Body(STATUS_CLASS_NAME), new VStatus()); + // request class + classes().put(String::Body(REQUEST_CLASS_NAME), new VRequest(arequest_info, charsets)); + // cookie class + classes().put(String::Body(COOKIE_CLASS_NAME), &cookie); + // console class + classes().put(String::Body(CONSOLE_CLASS_NAME), new VConsole()); + + /// methoded + // response class + classes().put(response.get_class()->name(), &response); + + /// bases used + // form class + classes().put(form.get_class()->base_class()->name(), &form); + // mail class + classes().put(mail.get_class()->base_class()->name(), &mail); + // math class + { + Value& math=*new VMath; + classes().put(math.get_class()->base_class()->name(), &math); + } + // memory class + { + Value& memory=*new VMemory; + classes().put(memory.get_class()->base_class()->name(), &memory); + } +} + +Request::~Request() { +#ifdef XML + // if for some strange reason xml generic errors failed to be reported, free them up + if(const char* xml_generic_errors=xmlGenericErrors()) { + SAPI::log(sapi_info, "warning: unreported xmlGenericErrors: %s", xml_generic_errors); + free((void *)xml_generic_errors); + } +#endif +} + +Value& Request::get_self() { return method_frame/*always have!*/->self(); } + +static void load_charset(HashStringValue::key_type akey, + HashStringValue::value_type avalue, + 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) { + if(configure_admin_done) + throw Exception("parser.runtime", + 0, + "parser already configured"); + configure_admin_done=true; + + // charsets must only be specified in method_frame config + // so that users would not interfere + + /* $MAIN:CHARSETS[ + $.charsetname1[/full/path/to/charset/file.cfg] + ... + ] + */ + if(Value* vcharsets=conf_class.get_element(charsets_name, conf_class, false)) { + if(!vcharsets->is_string()) + if(HashStringValue* charsets=vcharsets->get_hash()) + charsets->for_each(load_charset, &this->charsets); + else + throw Exception("parser.runtime", + 0, + "$" MAIN_CLASS_NAME ":" CHARSETS_NAME " must be hash"); + } + + // configure method_frame options + // until someone with less privileges have overriden them + methoded_array().configure_admin(*this); +} + +/** + load MAIN class, execute @main. + MAIN class consists of all the auto.p files we'd manage to find + plus + the file user requested us to process + all located classes become children of one another, + composing class we name 'MAIN' + + @test log stack trace + +*/ +void Request::core(const char* config_filespec, bool config_fail_on_read_problem, bool header_only) { + +#ifdef RESOURCES_DEBUG +//measures +struct timeval mt[10]; +//measure:before all +gettimeofday(&mt[0],NULL); +#endif + try { + // loading config + if(config_filespec) { + const String& filespec=*new String(config_filespec); + use_file(main_class, + filespec, 0 /*main_alias*/, + true /*ignore class_path*/, + config_fail_on_read_problem, + true /*file must exist if 'fail on read problem' not set*/); + } + + // loading auto.p files from document_root/.. + // to the one beside requested file. + // all assigned bases from upper dir + { + const char* after=request_info.path_translated; + size_t drlen=strlen(request_info.document_root); + if(memcmp(after, request_info.document_root, drlen)==0) { + after+=drlen; + if(after[-1]=='/') + --after; + } + + while(const char* before=strchr(after, '/')) { + String& sfile_spec=*new String; + if(after!=request_info.path_translated) { + sfile_spec.append_strdup( + request_info.path_translated, before-request_info.path_translated, + String::L_CLEAN); + sfile_spec << "/" AUTO_FILE_NAME; + + use_file(main_class, + sfile_spec, + 0 /*main_alias*/, + true /*ignore class_path*/, + true /*fail on read problem*/, + false /*but ignore absence, sole user*/); + } + after=before+1; + } + } - // table class - classes().put(*table_class_name, table_class); - table_class->set_name(*table_class_name); - - - // web - // todo: ifdef WIN32 flip \\ to / - document_root="Y:/parser3/src/"; - page_filespec="Y:/parser3/src/test.p"; -} - -void Request::core() { - TRY { - // loading system auto.p - char *sys_auto_file="C:\\temp\\auto.p"; - VClass *main_class=use_file( - sys_auto_file, false/*ignore possible read problem*/, - 0/*new class*/, main_class_name); - - // TODO: использовать $MAIN:limits здесь, пока их не сломали враги - - // TODO: load site auto.p files, all assigned bases from upper dir - char *site_auto_file="Y:\\parser3\\src\\auto.p"; - main_class=use_file( - site_auto_file, false/*ignore possible read problem*/, - 0/*new class*/, main_class_name, main_class); - - // there must be some auto.p - if(!main_class) - THROW(0,0, + // compile requested file + String& spath_translated=*new String; + spath_translated.append_help_length(request_info.path_translated, 0, String::L_TAINTED); + use_file(main_class, + spath_translated, + 0 /*main_alias*/, + true /*ignore class_path*/); + + // configure method_frame options if not configured yet + if(!configure_admin_done) + configure_admin(main_class); + + // configure not-method_frame=user options + methoded_array().configure_user(*this); + + // $MAIN:MIME-TYPES + if(Value* element=main_class.get_element(mime_types_name, main_class, false)) + if(Table *table=element->get_table()) + mime_types=table; + + // filling form fields + form.fill_fields_and_tables(charsets, request_info); + + // filling cookies + cookie.fill_fields(request_info); + + // filling mail received + mail.fill_received(*this); + +#ifdef RESOURCES_DEBUG +//measure:after compile +gettimeofday(&mt[1],NULL); +#endif + // execute @main[] + const String* body_string=execute_virtual_method(main_class, main_method_name); + if(!body_string) + throw Exception("parser.runtime", 0, - "'auto.p' not found"); + "'"MAIN_METHOD_NAME"' method not found"); - // compiling requested file - use_file(page_filespec, true/*don't ignore read problem*/, - 0/*new class*/, main_class_name, main_class); - - // executing some @main[] - char *result=execute_MAIN(); - printf("result-----------------\n%sEOF----------------\n", result); - } - CATCH(e) { - printf("\nERROR: "); - const String *problem_source=e.problem_source(); -#ifndef NO_STRING_ORIGIN - if(problem_source) { - const Origin& origin=problem_source->origin(); - if(origin.file) - printf("%s(%d): ", - origin.file, 1+origin.line); - printf("'%s' ", - problem_source->cstr()); - } -#endif - printf("%s", e.comment()); - const String *type=e.type(); - if(type) { - printf(" type: %s", type->cstr()); - const String *code=e.code(); - if(code) - printf(", code: %s", code->cstr()); - } - printf("\n"); - } - END_CATCH -} - -VClass *Request::use_file( - const char *file, bool fail_on_read_problem, - VClass *aclass, const String *name, - VClass *base_class) { - // TODO: обнаружить|решить cyclic dependences - char *source=file_read(pool(), file, fail_on_read_problem); - if(!source) - return base_class; - - return use_buf(source, file, aclass, name, base_class); -} - -VClass *Request::use_buf( - const char *source, const char *file, - VClass *aclass, const String *name, - VClass *base_class) { - // compile loaded class - VClass& cclass=COMPILE(source, aclass, name, base_class, file); +#ifdef RESOURCES_DEBUG + //measure:after main +gettimeofday(&mt[2],NULL); +#endif + + // extract response body + Value* body_value=response.fields().get(download_name); // $response:download? + bool as_attachment=body_value!=0; + if(!body_value) + body_value=response.fields().get(body_name); // $response:body + if(!body_value) + body_value=new VString(*body_string); // just result of ^main[] + + // @postprocess + if(Value* value=main_class.get_element(post_process_method_name, main_class, false)) + if(Junction* junction=value->get_junction()) + if(const Method *method=junction->method) { + // preparing to pass parameters to + // @postprocess[data] + VMethodFrame frame(/*method->name, */ *junction, 0/*no parent*/); + frame.set_self(main_class); + + frame.store_param(*body_value); + body_value=&execute_method(frame, *method).as_value(); + } + + VFile* body_file=body_value->as_vfile( + String::L_UNSPECIFIED, &charsets); + +#ifdef RESOURCES_DEBUG +//measure:after postprocess +gettimeofday(&mt[3],NULL); +#endif + + // OK. write out the result + 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 + // we're returning not result, but error explanation +// try { +#define PA_URI_FORMAT "%s: " +#define PA_ORIGIN_FILE_POS_FORMAT "%s(%d:%d): " +#define PA_SOURCE_FORMAT "'%s' " +#define PA_COMMENT_TYPE_FORMAT "%s [%s]" + // log the beast + Request::Exception_details details=get_details(e); + + if(details.problem_source) { // do we know the guy? + if(details.trace) { // do whe know where he came from? + Operation::Origin origin=details.trace.origin(); + SAPI::log(sapi_info, + PA_URI_FORMAT + PA_ORIGIN_FILE_POS_FORMAT + PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT, + request_info.uri, + file_list[origin.file_no].cstr(), 1+origin.line, 1+origin.col, + details.problem_source->cstr(), + e.comment(), e.type() + ); + } else + SAPI::log(sapi_info, + PA_URI_FORMAT + PA_SOURCE_FORMAT PA_COMMENT_TYPE_FORMAT, + request_info.uri, + details.problem_source->cstr(), + e.comment(), e.type() + ); + } else + SAPI::log(sapi_info, + PA_URI_FORMAT + PA_COMMENT_TYPE_FORMAT, + request_info.uri, + e.comment(), e.type() + ); + + // reset language to default + flang=fdefault_lang; + + // reset response + response.fields().clear(); + + // this is what we'd return in $response:body + const String* body_string=0; + + // maybe we'd be lucky enough as to report an error + // in a gracefull way... + if(Value* value=main_class.get_element( + *new String(UNHANDLED_EXCEPTION_METHOD_NAME), + main_class, + false)) { + if(Junction* junction=value->get_junction()) { + if(const Method *method=junction->method) { +// preparing to pass parameters to +// @unhandled_exception[exception;stack] +VMethodFrame frame(/*method->name, */ *junction, 0/*no caller*/); +frame.set_self(main_class); + +// $exception +frame.store_param(details.vhash); +// $stack[^table::set{name origin}] +Table::columns_type stack_trace_columns(new ArrayString); +*stack_trace_columns+=new String("name"); +*stack_trace_columns+=new String("file"); +*stack_trace_columns+=new String("lineno"); +*stack_trace_columns+=new String("colno"); +Table& stack_trace=*new Table(stack_trace_columns); +if(!exception_trace.is_empty()/*signed!*/) + for(size_t i=exception_trace.bottom_index(); iorigin(); + if(origin.file) + printed+=snprintf(buf+printed, MAX_STRING-printed, + PA_ORIGIN_FILE_POS_FORMAT, + origin.file, 1+origin.line + ); + printed+=snprintf(buf+printed, MAX_STRING-printed, "'%s' ", + problem_source->cstr().get()); + */ + } + if(const char* comment=e.comment(true)) + printed+=snprintf(buf+printed, MAX_STRING-printed, "%s", comment); + if(const char* type=e.type(true)) + printed+=snprintf(buf+printed, MAX_STRING-printed, " type: %s", type); + + // future $response:content-type + response.fields().put(content_type_name, + new VString(*new String(UNHANDLED_EXCEPTION_CONTENT_TYPE))); + // future $response:body + body_string=new String(buf); + } + + VString body_vstring(*body_string); + VFile* body_file=body_vstring.as_vfile(String::L_UNSPECIFIED, &charsets); + + // ERROR. write it out + output_result(body_file, header_only, false); +// } catch(const Exception& ) { +// rethrow; +// } + } +} - // locate and execute possible @auto[] static method - execute_static_method(cclass, *auto_method_name, false /*no result needed*/); - return &cclass; +size_t Request::register_file(String::Body file_spec) { + file_list+=file_spec; + return file_list.count()-1; } -char *Request::execute_MAIN() { - // locate class with @main[] & execute it - for(int i=classes_array().size(); --i>=0;) { - VClass *vclass=static_cast(classes_array().get(i)); - char *result=execute_static_method(*vclass, *main_method_name, true /*result needed*/); - if(result) - return result; +void Request::use_file(VStateless_class& aclass, + const String& file_name, const String* main_alias, + bool ignore_class_path, + bool fail_on_read_problem, + bool fail_on_file_absence) { + // cyclic dependence check + if(used_files.get(file_name)) + return; + used_files.put(file_name, true); + + const String* file_spec; + if(ignore_class_path) // ignore_class_path? + file_spec=&file_name; + else if(file_name.first_char()=='/') //absolute path? [no need to scan MAIN:CLASS_PATH] + file_spec=&absolute(file_name); + else { + file_spec=0; + if(Value* element=main_class.get_element(class_path_name, main_class, false)) { + if(element->is_string()) { + file_spec=file_readable(absolute(element->as_string()), file_name); // found at class_path? + } else if(Table *table=element->get_table()) { + int size=table->count(); + for(int i=size; i--; ) { + const String& path=*(*table->get(i))[0]; + if(file_spec=file_readable(absolute(path), file_name)) + break; // found along class_path + } + } else + throw Exception("parser.runtime", + 0, + "$" CLASS_PATH_NAME " must be string or table"); + if(!file_spec) + throw Exception("parser.runtime", + &file_name, + "not found along " MAIN_CLASS_NAME ":" CLASS_PATH_NAME); + } + if(!file_spec) + throw Exception("parser.runtime", + &file_name, + "usage failed - no $" MAIN_CLASS_NAME ":" CLASS_PATH_NAME " were specified"); } - - THROW(0,0, - 0, - "'"MAIN_METHOD_NAME"' method not found"); - return 0; -} - -void Request::fail_if_junction_(bool is, - Value& value, const String& method_name, char *msg) { - - // fail_if_junction(true, junction = fail - // fail_if_junction(false, not junction = fail - if((value.get_junction()!=0) ^ !is) - THROW(0, 0, - &method_name, - msg); -} - -char *Request::relative(const char *path, const char *file) { - char *result=(char *)malloc(strlen(path)+strlen(file)+1); - strcpy(result, path); - rsplit(result,'/'); - strcat(result, "/"); - strcat(result, file); - return result; -} - -char *Request::absolute(const char *name) { - if(name[0]=='/') { - char *result=(char *)malloc(strlen(document_root)+strlen(name)+1); - strcpy(result, document_root); - strcat(result, name); + + if(fail_on_read_problem && !fail_on_file_absence) // ignore file absence if asked for + if(!entry_exists(*file_spec)) + return; + + if(const char* source=file_read_text(charsets, *file_spec, fail_on_read_problem)) + use_buf(aclass, source, main_alias, register_file(*file_spec)); +} + + +void Request::use_buf(VStateless_class& aclass, + const char* source, const String* main_alias, + uint file_no) { + // temporary zero @conf so to maybe-replace it in compiled code + Temp_method temp_method_conf(aclass, conf_method_name, 0); + // temporary zero @auto so to maybe-replace it in compiled code + Temp_method temp_method_auto(aclass, auto_method_name, 0); + + // compile loaded class + VStateless_class& cclass=compile(&aclass, source, main_alias, file_no); + + // locate and execute possible @conf[] static + VString* vfilespec= + new VString(*new String(file_list[file_no], String::L_TAINTED)); + Execute_nonvirtual_method_result executed=execute_nonvirtual_method(cclass, + conf_method_name, vfilespec, + false/*no string result needed*/); + if(executed.method) + configure_admin(cclass/*, executed.method->name*/); + + // locate and execute possible @auto[] static + execute_nonvirtual_method(cclass, + auto_method_name, vfilespec, + false/*no result needed*/); +} + +const String& Request::relative(const char* apath, const String& relative_name) { + char *hpath=strdup(apath); + String& result=*new String; + if(rsplit(hpath, '/')) // if something/splitted + result << hpath << "/"; + result << relative_name; + return result; +} + +const String& Request::absolute(const String& relative_name) { + if(relative_name.first_char()=='/') { + String& result=*new String(strdup(request_info.document_root)); + result << relative_name; return result; } else - return relative(page_filespec, name); + if(relative_name.pos("://")!=STRING_NOT_FOUND // something like "http://xxx" +#ifdef WIN32 + || relative_name.pos(":")==1 // DRIVE: + || relative_name.starts_with("\\\\") // UNC1 + || relative_name.starts_with("//") // UNC2 +#endif + ) + return relative_name; + else + return relative(request_info.path_translated, relative_name); +} + +static void add_header_attribute( + HashStringValue::key_type aattribute, + HashStringValue::value_type ameaning, + Request *r) { + if(aattribute==BODY_NAME + || aattribute==DOWNLOAD_NAME + || aattribute==CHARSET_NAME) + return; + + SAPI::add_header_attribute(r->sapi_info, + aattribute.cstr(), + attributed_meaning_to_string(*ameaning, String::L_HTTP_HEADER, false). + cstr(String::L_UNSPECIFIED)); +} +void Request::output_result(VFile* body_file, bool header_only, bool as_attachment) { + // header: cookies + cookie.output_result(sapi_info); + + Value* body_file_content_type; + // set content-type + if(body_file_content_type=body_file->fields().get(content_type_name)) { + // body file content type + response.fields().put(content_type_name, body_file_content_type); + } else { + // default content type + response.fields().put_dont_replace(content_type_name, + new VString(*new String(DEFAULT_CONTENT_TYPE))); + } + + // content-disposition + if(Value* vfile_name=body_file->fields().get(name_name)) + if(*vfile_name->get_string()!=NONAME_DAT) { + VHash& hash=*new VHash(); + HashStringValue &h=hash.hash(); + if(as_attachment) + h.put(value_name, new VString(content_disposition_value)); + h.put(content_disposition_filename_name, vfile_name); + response.fields().put(content_disposition_name, &hash); + } + + // prepare header: $response:fields without :body + response.fields().for_each(add_header_attribute, this); + + // transcode text body when "text/*" or simple result + if(body_file_content_type) + if(HashStringValue *hash=body_file_content_type->get_hash()) + body_file_content_type=hash->get(value_name); + 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) + output=Charset::transcode(output, + charsets.source(), + charsets.client()); + + // prepare header: content-length + char content_length_cstr[MAX_NUMBER]; + snprintf(content_length_cstr, MAX_NUMBER, "%u", output.length); + SAPI::add_header_attribute(sapi_info, "content-length", content_length_cstr); + + // send header + SAPI::send_header(sapi_info); + + // send body + if(!header_only) + SAPI::send_body(sapi_info, output.str, output.length); +} + +const String& Request::mime_type_of(const char* user_file_name_cstr) { + if(mime_types) + if(const char* cext=strrchr(user_file_name_cstr, '.')) { + String sext(++cext); + Table::Action_options options; + if(mime_types->locate(0, sext.change_case(charsets.source(), String::CC_LOWER), options)) + if(const String* result=mime_types->item(1)) + return *result; + else + throw Exception("parser.runtime", + 0, + MIME_TYPES_NAME " table column elements must not be empty"); + } + + return *new String("application/octet-stream"); +} + +#ifdef XML +GdomeDOMString_auto_ptr Request::transcode(const String& s) { + return charsets.source().transcode(s); +} + +GdomeDOMString_auto_ptr Request::transcode(const String::Body s) { + return charsets.source().transcode(s); +} + +const String& Request::transcode(GdomeDOMString* s) { + return charsets.source().transcode(s); +} + +const String& Request::transcode(xmlChar* s) { + return charsets.source().transcode(s); +} +#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 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) { + const String* problem_source=e.problem_source(); + Trace trace=exception_trace.extract_origin(problem_source); + + VHash& vhash=*new VHash; HashStringValue& hash=vhash.hash(); + + // $.type + if(const char* type=e.type(true)) + hash.put(exception_type_part_name, new VString(*new String(type))); + + // $.source + if(problem_source) { + String& source=*new String; + source.append(*problem_source, String::L_TAINTED, true/*forced*/); + + hash.put(exception_source_part_name, new VString(source)); + } + + // $.file lineno colno + if(trace) { + const Operation::Origin origin=trace.origin(); + hash.put(String::Body("file"), + new VString(*new String(file_list[origin.file_no], String::L_TAINTED))); + hash.put(String::Body("lineno"), new VInt(1+origin.line)); + hash.put(String::Body("colno"), new VInt(1+origin.col)); + } + + // $.comment + if(const char* comment=e.comment(true)) + hash.put(exception_comment_part_name, + new VString(*new String(comment, 0, true/*tainted*/))); + + // $.handled(0) + hash.put(exception_handled_part_name, new VBool(false)); + + return Request::Exception_details(trace, problem_source, vhash); }