|
|
| version 1.3, 2001/03/10 11:44:42 | version 1.42, 2001/03/18 11:58:20 |
|---|---|
| Line 1 | Line 1 |
| /* | /* |
| $Id$ | Parser |
| Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) | |
| Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) | |
| $Id$ | |
| */ | */ |
| #include <string.h> | |
| #include "pa_request.h" | #include "pa_request.h" |
| #include "pa_wwrapper.h" | #include "pa_wwrapper.h" |
| #include "pa_common.h" | #include "pa_common.h" |
| #include "pa_vclass.h" | #include "pa_vclass.h" |
| #include "classes/_root.h" | #include "_root.h" |
| #include "classes/_env.h" | #include "_env.h" |
| #include "_table.h" | |
| #include <stdio.h> | #include "pa_globals.h" |
| #include "pa_vint.h" | |
| Request::Request(Pool& apool) : Pooled(apool), | #include "pa_vmframe.h" |
| #include "pa_types.h" | |
| #define NEW_STRING(name, value) name=NEW String(pool()); name->APPEND_CONST(value) | |
| #define LOCAL_STRING(name, value) String name(pool()); name.APPEND_CONST(value) | |
| Request::Request(Pool& apool, | |
| Info& ainfo, | |
| String::Untaint_lang alang) : Pooled(apool), | |
| stack(apool), | stack(apool), |
| root_class(apool), | ROOT(apool), |
| env_class(apool), | env(apool), |
| form(apool), | |
| request(apool, *this), | |
| response(apool), | |
| fclasses(apool), | fclasses(apool), |
| fclasses_array(apool), | flang(alang), |
| lang(String::Untaint_lang::HTML_TYPO) | info(ainfo) |
| { | { |
| // root class | // root superclass, |
| initialize_root_class(pool(), root_class); | |
| // adding root superclass, | |
| // parent of all classes, | // parent of all classes, |
| // operators holder | // operators holder |
| String ROOT(pool()); ROOT.APPEND_CONST(ROOT_NAME); | initialize_root_class(pool(), ROOT); |
| classes().put(ROOT, &root_class); | classes().put(*root_class_name, &ROOT); |
| // table class | |
| classes().put(*table_class_name, table_class); | |
| // table_class->set_name(*table_class_name); | |
| // env class | // env class |
| initialize_env_class(pool(), env_class); | classes().put(*env_class_name, &env); |
| String ENV(pool()); ENV.APPEND_CONST(ENV_NAME); | // form class |
| classes().put(ENV, &env_class); | classes().put(*form_class_name, &form); |
| // request class | |
| classes().put(*request_class_name, &request); | |
| // response class | |
| classes().put(*response_class_name, &response); | |
| } | } |
| void Request::core() { | void Request::core(Exception& system_exception, |
| const char *sys_auto_path1, | |
| const char *sys_auto_path2) { | |
| VStateless_class *main_class=0; | |
| bool need_rethrow=false; Exception rethrow_me; | |
| TRY { | TRY { |
| char *file="Y:\\parser3\\src\\test.p"; | char *auto_filespec=(char *)malloc(MAX_STRING); |
| String RUN(pool()); RUN.APPEND_CONST(RUN_NAME); | |
| use(file, &RUN); | // load MAIN class, |
| // it 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' | |
| // loading system auto.p 1 | |
| if(sys_auto_path1) { | |
| strncpy(auto_filespec, sys_auto_path1, MAX_STRING-strlen(AUTO_FILE_NAME)); | |
| strcat(auto_filespec, AUTO_FILE_NAME); | |
| main_class=use_file( | |
| auto_filespec, false/*ignore possible read problem*/, | |
| main_class_name, main_class); | |
| } | |
| // loading system auto.p 2 | |
| if(sys_auto_path2) { | |
| strncpy(auto_filespec, sys_auto_path2, MAX_STRING-strlen(AUTO_FILE_NAME)); | |
| strcat(auto_filespec, AUTO_FILE_NAME); | |
| main_class=use_file( | |
| auto_filespec, false/*ignore possible read problem*/, | |
| main_class_name, main_class); | |
| } | |
| Value *element; | |
| // $MAIN:limits hash used here, | |
| // until someone with less privileges have overriden them | |
| Value *limits=main_class?main_class->get_element(*limits_name):0; | |
| // $limits.post_max_size default 10M | |
| element=limits?limits->get_element(*post_max_size_name):0; | |
| int value=element?(size_t)element->get_double():0; | |
| int post_max_size=value?value:10*0x400*400; | |
| //response.fields().put(*content_type_name, TODO); | |
| form.fill_fields(*this, post_max_size); | |
| // 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* /, | |
| main_class_name, main_class);*/ | |
| // $MAIN:defaults | |
| Value *defaults=main_class?main_class->get_element(*defaults_name):0; | |
| // $defaults.content-type | |
| element=defaults?defaults->get_element(*content_type_name):0; | |
| if(element) | |
| response.fields().put(*content_type_name, element); | |
| // there must be some auto.p | |
| if(!main_class) | |
| THROW(0,0, | |
| 0, | |
| "no 'auto.p' found (nither system nor any site's)"); | |
| // compiling requested file | |
| main_class=use_file(info.path_translated, true/*don't ignore read problem*/, | |
| main_class_name, main_class); | |
| // execute @main[] | |
| const String *body_string=execute_method(*main_class, *main_method_name); | |
| if(!body_string) | |
| THROW(0,0, | |
| 0, | |
| "'"MAIN_METHOD_NAME"' method not found"); | |
| char *result=execute_MAIN(); | // store 'body' unless response already have one |
| printf("result-----------------\n%sEOF----------------\n", result); | response.fields().put_dont_replace(*body_name, NEW VString(*body_string)); |
| } | } |
| CATCH(e) { | CATCH(e) { |
| printf("\nERROR: "); | TRY { |
| const String *problem_source=e.problem_source(); | // we're returning not result, but error explanation |
| if(problem_source) { | const String *body_string=0; |
| const Origin& origin=problem_source->origin(); | |
| if(origin.file) | if(main_class) { // we've managed to end up with some main_class |
| printf("%s(%d): ", | // maybe we'd be lucky enough as to report an error |
| origin.file, 1+origin.line); | // in a gracefull way... |
| printf("'%s' ", | if(Value *value=main_class->get_element(*exception_method_name)) |
| problem_source->cstr()); | if(Junction *junction=value->get_junction()) |
| if(const Method *method=junction->method) { | |
| // preparing to pass parameters to | |
| // @exception[origin;source;comment;type;code] | |
| VMethodFrame frame(pool(), *junction); | |
| frame.set_self(*main_class); | |
| const String *problem_source=e.problem_source(); | |
| // origin | |
| LOCAL_STRING(origin_name, "origin"); | |
| Value *origin_value=0; | |
| #ifndef NO_STRING_ORIGIN | |
| if(problem_source) { | |
| const Origin& origin=problem_source->origin(); | |
| if(origin.file) { | |
| char *buf=(char *)malloc(MAX_STRING); | |
| snprintf(buf, MAX_STRING, "%s(%d):", | |
| origin.file, 1+origin.line); | |
| String *NEW_STRING(origin_file_line, buf); | |
| origin_value=NEW VString(*origin_file_line); | |
| } | |
| } | |
| #endif | |
| frame.store_param(origin_name, | |
| origin_value?origin_value:NEW VUnknown(pool())); | |
| // source | |
| LOCAL_STRING(source_name, "source"); | |
| Value *source_value=0; | |
| if(problem_source) | |
| source_value=NEW VString(*problem_source); | |
| frame.store_param(source_name, | |
| source_value?source_value:NEW VUnknown(pool())); | |
| // comment | |
| LOCAL_STRING(comment_name, "comment"); | |
| String *NEW_STRING(comment_value, e.comment()); | |
| frame.store_param(comment_name, | |
| NEW VString(*comment_value)); | |
| // type | |
| LOCAL_STRING(type_name, "type"); | |
| Value *type_value; | |
| if(e.type()) | |
| type_value=NEW VString(*e.type()); | |
| else | |
| type_value=NEW VUnknown(pool()); | |
| frame.store_param(type_name, type_value); | |
| // code | |
| LOCAL_STRING(code_name, "code"); | |
| Value *code_value; | |
| if(e.code()) | |
| code_value=NEW VString(*e.code()); | |
| else | |
| code_value=NEW VUnknown(pool()); | |
| frame.store_param(code_name, code_value); | |
| { | |
| Temp_lang temp_lang(*this, | |
| String::Untaint_lang::HTML_TYPO); | |
| body_string=execute_method(frame, *method); | |
| } | |
| } | |
| } | |
| if(!body_string) { // couldn't report an error beautifully? | |
| // doing that ugly | |
| // assign content-type | |
| String &content_type_value=*NEW String(pool()); | |
| content_type_value.APPEND_CONST("text/plain"); | |
| response.fields().put(*content_type_name, | |
| NEW VString(content_type_value)); | |
| // make up result: $origin $source $comment $type $code | |
| char *buf=(char *)malloc(MAX_STRING); | |
| size_t printed=0; | |
| const String *problem_source=e.problem_source(); | |
| if(problem_source) { | |
| #ifndef NO_STRING_ORIGIN | |
| const Origin& origin=problem_source->origin(); | |
| if(origin.file) | |
| printed+=snprintf(buf+printed, MAX_STRING-printed, "%s(%d): ", | |
| origin.file, 1+origin.line); | |
| #endif | |
| printed+=snprintf(buf+printed, MAX_STRING-printed, "'%s' ", | |
| problem_source->cstr()); | |
| } | |
| printed+=snprintf(buf+printed, MAX_STRING-printed, "%s", | |
| e.comment()); | |
| const String *type=e.type(); | |
| if(type) { | |
| printed+=snprintf(buf+printed, MAX_STRING-printed, " type: %s", | |
| type->cstr()); | |
| const String *code=e.code(); | |
| if(code) | |
| printed+=snprintf(buf+printed, MAX_STRING-printed, ", code: %s", | |
| code->cstr()); | |
| } | |
| String *error_string=NEW String(pool()); error_string->APPEND_CONST(buf); | |
| body_string=error_string; | |
| } | |
| // store 'body' overwriting any response already had | |
| response.fields().put(*body_name, NEW VString(*body_string)); | |
| } | } |
| printf("%s", e.comment()); | CATCH(e) { |
| const String *type=e.type(); | // exception in request exception handler |
| if(type) { | // remember to rethrow it |
| printf(" type: %s", type->cstr()); | rethrow_me=e; need_rethrow=true; |
| const String *code=e.code(); | |
| if(code) | |
| printf(", code: %s", code->cstr()); | |
| } | } |
| printf("\n"); | END_CATCH |
| } | } |
| END_CATCH | END_CATCH // do not use pool() after this point - no exception handler set |
| // any throw() would try to use zero exception() pointer | |
| if(need_rethrow) // there were an exception set for us to rethrow? | |
| system_exception._throw(rethrow_me.type(), rethrow_me.code(), | |
| rethrow_me.problem_source(), | |
| rethrow_me.comment()); | |
| } | } |
| void Request::use(char *file, String *name) { | VStateless_class *Request::use_file( |
| const char *file, bool fail_on_read_problem, | |
| const String *name, | |
| VStateless_class *base_class) { | |
| // TODO: обнаружить|решить cyclic dependences | // TODO: обнаружить|решить cyclic dependences |
| char *source=file_read(pool(), file); | char *source=file_read(pool(), file, fail_on_read_problem); |
| if(!source) | if(!source) |
| THROW(0,0, | return base_class; |
| 0, | |
| "use: can not read '%s' file", file); | return use_buf(source, file, 0/*new class*/, name, base_class); |
| } | |
| COMPILE(source, name, file); | |
| // TODO: запустить @STATIC[], если есть | VStateless_class *Request::use_buf( |
| const char *source, const char *file, | |
| // if(alias) | VStateless_class *aclass, const String *name, |
| //classes().put(*alias, &vclass); | VStateless_class *base_class) { |
| } | // compile loaded class |
| VStateless_class& cclass=COMPILE(source, aclass, name, base_class, file); | |
| char *Request::execute_MAIN() { | |
| // locate class with @main & it's code | // locate and execute possible @auto[] static method |
| String name_main(pool()); | execute_method(cclass, *auto_method_name, false /*no result needed*/); |
| name_main.APPEND_CONST(MAIN_METHOD_NAME); | return &cclass; |
| } | |
| // looking for latest known @main | |
| for(int i=classes_array().size(); --i>=0;) { | void Request::fail_if_junction_(bool is, |
| VClass *vclass=static_cast<VClass *>(classes_array().get(i)); | Value& value, const String& method_name, char *msg) { |
| Value *main=vclass->get_element(name_main); | |
| if(main) { // found some 'main' element | // fail_if_junction(true, junction = fail |
| Junction *junction=main->get_junction(); | // fail_if_junction(false, not junction = fail |
| if(junction) {// it even has junction! | if((value.get_junction()!=0) ^ !is) |
| const Method *method=junction->method; | THROW(0, 0, |
| if(method) { // and junction is method-junction! call it | &method_name, |
| // initialize contexts | msg); |
| root=rcontext=self=vclass; | } |
| wcontext=NEW WWrapper(pool(), vclass, false /* not constructing */); | |
| char *Request::relative(const char *path, const char *file) { | |
| // execute! | char *result=(char *)malloc(strlen(path)+strlen(file)+1); |
| execute(*method->parser_code); | strcpy(result, path); |
| rsplit(result, PATH_DELIMITER_CHAR); | |
| // return chars | strcat(result, PATH_DELIMITER_STRING); |
| return wcontext->get_string()->cstr(); | strcat(result, file); |
| } | return result; |
| } | } |
| } | |
| } | char *Request::absolute(const char *name) { |
| if(name[0]=='/') { | |
| THROW(0,0, | char *result=(char *)malloc(strlen(info.document_root)+strlen(name)+1); |
| 0, | strcpy(result, info.document_root); |
| "'"MAIN_METHOD_NAME"' method not found"); | strcat(result, name); |
| return 0; | return result; |
| } else | |
| return relative(info.uri, name); | |
| } | } |