--- parser3/src/main/pa_request.C 2001/03/18 11:37:52 1.41 +++ parser3/src/main/pa_request.C 2001/03/24 19:12:20 1.78 @@ -1,40 +1,47 @@ -/* - Parser +/** @file + Parser: request class main part. @see compile.C and execute.C. + Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexander Petrosyan (http://design.ru/paf) - $Id: pa_request.C,v 1.41 2001/03/18 11:37:52 paf Exp $ + $Id: pa_request.C,v 1.78 2001/03/24 19:12:20 paf Exp $ */ -#include +#include "pa_config_includes.h" +#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 "pa_globals.h" #include "pa_vint.h" #include "pa_vmframe.h" #include "pa_types.h" +#include "pa_vtable.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) +/// $limits.post_max_size default 10M +const size_t MAX_POST_SIZE_DEFAULT=10*0x400*400; +// Request::Request(Pool& apool, Info& ainfo, - String::Untaint_lang alang) : Pooled(apool), + String::Untaint_lang adefault_lang) : Pooled(apool), stack(apool), ROOT(apool), env(apool), form(apool), request(apool, *this), response(apool), + cookie(apool), fclasses(apool), - flang(alang), - info(ainfo) + fdefault_lang(adefault_lang), flang(adefault_lang), + info(ainfo), + default_content_type(0), + used_files(apool) { // root superclass, // parent of all classes, @@ -43,7 +50,6 @@ Request::Request(Pool& apool, classes().put(*root_class_name, &ROOT); // table class classes().put(*table_class_name, table_class); -// table_class->set_name(*table_class_name); // env class classes().put(*env_class_name, &env); @@ -53,70 +59,127 @@ Request::Request(Pool& apool, classes().put(*request_class_name, &request); // response class classes().put(*response_class_name, &response); + // cookie class + classes().put(*cookie_class_name, &cookie); +} + +static void add_header_attribute(const Hash::Key& aattribute, Hash::Val *ameaning, + void *info) { + String *attribute_to_exclude=static_cast(info); + if(aattribute==*attribute_to_exclude) + return; + + Value& lmeaning=*static_cast(ameaning); + Pool& pool=lmeaning.pool(); + + String attribute(pool); + SAPI::add_header_attribute(pool, + attribute.append(aattribute, String::UL_HEADER, true).cstr(), + attributed_meaning_to_string(lmeaning).cstr()); } -void Request::core(Exception& system_exception, - const char *sys_auto_path1, - const char *sys_auto_path2) { +/** + 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' +*/ +void Request::core(const char *root_auto_path, bool root_auto_fail, + const char *site_auto_path, bool site_auto_fail, + bool header_only) { VStateless_class *main_class=0; bool need_rethrow=false; Exception rethrow_me; TRY { char *auto_filespec=(char *)malloc(MAX_STRING); - // 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); + // loading root auto.p + if(root_auto_path) { + String& filespec=*NEW String(pool()); + filespec.APPEND(root_auto_path, 0, "root_auto", 0); + filespec.APPEND_CONST("/" AUTO_FILE_NAME); main_class=use_file( - auto_filespec, false/*ignore possible read problem*/, + filespec, root_auto_fail, 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: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 + Value *element=limits?limits->get_element(*post_max_size_name):0; + size_t value=element?(size_t)element->get_double():0; + size_t post_max_size=value?value:MAX_POST_SIZE_DEFAULT; + + form.fill_fields(*this, post_max_size); + } + + // filling cookies + cookie.fill_fields(*this); + + // loading site auto.p + if(site_auto_path) { + String& filespec=*NEW String(pool()); + filespec.APPEND(site_auto_path, 0, "site_auto", 0); + filespec.APPEND_CONST("/" AUTO_FILE_NAME); main_class=use_file( - auto_filespec, false/*ignore possible read problem*/, + filespec, site_auto_fail, main_class_name, main_class); } - // $MAIN:limits hash used here, - // until someone with less privileges have overriden them - Value *limits=main_class?main_class->get_element(*limits_name):0; - Value *element; - // $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);*/ - - // there must be some auto.p - if(!main_class) - THROW(0,0, - 0, - "no 'auto.p' found (nither system nor any site's)"); + // loading auto.p files from document_root/.. + // to the one beside requested file. + // all assigned bases from upper dir + { + /* /document/root */ + char *file_spec= + (char *)malloc(strlen(info.path_translated)+strlen(AUTO_FILE_NAME)+1); + strcpy(file_spec, info.document_root); + + /* /requested/file.html */ + char *branches=(char *)malloc(strlen(info.path_translated)+1); + strcpy(branches, info.path_translated+strlen(info.document_root)); + char *next=branches; + + char *append_here=file_spec+strlen(file_spec); + size_t slash_auto_p_size=strlen("/" AUTO_FILE_NAME); + while(true) { + char *step=lsplit(&next, '/'); + if(next) { // not 'file.html' part + size_t step_size=strlen(step); + memcpy(append_here, step, step_size); + append_here+=step_size; + memcpy(append_here, "/" AUTO_FILE_NAME, slash_auto_p_size+1); + append_here++/* / */; + + String& sfile_spec=*NEW String(pool()); + sfile_spec.APPEND(file_spec, 0, "scanned", 0); + main_class=use_file(sfile_spec, false/*ignore read problem*/, + main_class_name, main_class); + } else + break; + } + } // compiling requested file - main_class=use_file(info.path_translated, true/*don't ignore read problem*/, + String& spath_translated=*NEW String(pool()); + spath_translated.APPEND(info.path_translated, 0, "user-request", 0); + main_class=use_file(spath_translated, true/*don't ignore read problem*/, main_class_name, main_class); + // $MAIN:defaults + Value *defaults=main_class->get_element(*defaults_name); + // value must be allocated on request's pool for that pool used on + // meaning constructing @see attributed_meaning_to_string + default_content_type=defaults? + defaults->get_element(*content_type_name) + :NEW VString(*NEW String(pool(), "text/html")); + if(Value *element=main_class->get_element(*html_typo_name)) + if(VTable *vtable=element->get_vtable()) + pool().set_tag(&vtable->table()); + // execute @main[] const String *body_string=execute_method(*main_class, *main_method_name); if(!body_string) @@ -124,14 +187,52 @@ void Request::core(Exception& system_exc 0, "'"MAIN_METHOD_NAME"' method not found"); - // store 'body' unless response already have one - response.fields().put_dont_replace(*body_name, NEW VString(*body_string)); + // extract response body + Value *body_value=static_cast( + response.fields().get(*body_name)); + if(body_value) // there is some $request.body + body_string=&body_value->as_string();// TODO: IMAGE&FILE + + // OK. write out the result + output_result(*body_string, header_only); } - CATCH(e) { + CATCH(e) { // request handling problem + // we're returning not result, but error explanation TRY { - // we're returning not result, but error explanation - const String *body_string=0; + // log the beast + const String *problem_source=e.problem_source(); + if(problem_source) + SAPI::log(pool(), +#ifndef NO_STRING_ORIGIN + "%s(%d): " +#endif + "'%s' %s [%s %s]", +#ifndef NO_STRING_ORIGIN + problem_source->origin().file?problem_source->origin().file:"global", + problem_source->origin().line, +#endif + problem_source->cstr(), + e.comment(), + e.type()?e.type()->cstr():"-", + e.code()?e.code()->cstr():"-" + ); + else + SAPI::log(pool(), + "%s [%s %s]", + e.comment(), + e.type()?e.type()->cstr():"-", + e.code()?e.code()->cstr():"-" + ); + + // 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; + if(main_class) { // we've managed to end up with some main_class // maybe we'd be lucky enough as to report an error // in a gracefull way... @@ -145,16 +246,17 @@ void Request::core(Exception& system_exc const String *problem_source=e.problem_source(); // origin - LOCAL_STRING(origin_name, "origin"); + String origin_name(pool(), "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): ", + snprintf(buf, MAX_STRING, "%s(%d):", origin.file, 1+origin.line); - String *NEW_STRING(origin_file_line, buf); + String *origin_file_line=NEW String(pool(), + buf, true); origin_value=NEW VString(*origin_file_line); } } @@ -163,54 +265,55 @@ void Request::core(Exception& system_exc origin_value?origin_value:NEW VUnknown(pool())); // source - LOCAL_STRING(source_name, "source"); + String source_name(pool(), "source"); Value *source_value=0; - if(problem_source) - source_value=NEW VString(*problem_source); + if(problem_source) { + String& problem_source_copy=*NEW String(pool()); + problem_source_copy.append(*problem_source, + flang, true); + source_value=NEW VString(problem_source_copy); + } 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()); + String comment_name(pool(), "comment"); + String *comment_value=NEW String(pool(), + e.comment(), true); frame.store_param(comment_name, NEW VString(*comment_value)); // type - LOCAL_STRING(type_name, "type"); + String type_name(pool(), "type"); Value *type_value; - if(e.type()) - type_value=NEW VString(*e.type()); - else + if(e.type()) { + String& type_copy=*NEW String(pool()); + type_value=NEW VString(type_copy.append(*e.type(), + flang, true)); + } else type_value=NEW VUnknown(pool()); frame.store_param(type_name, type_value); // code - LOCAL_STRING(code_name, "code"); + String code_name(pool(), "code"); Value *code_value; - if(e.code()) - code_value=NEW VString(*e.code()); - else + if(e.code()) { + String& code_copy=*NEW String(pool()); + code_value=NEW VString(code_copy.append(*e.code(), + flang, true)); + } 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); - } + // future $response:body= + // execute ^exception[origin;source;comment;type;code] + 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; @@ -236,12 +339,16 @@ void Request::core(Exception& system_exc 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; + + // future $response:content-type + response.fields().put(*content_type_name, + NEW VString(*NEW String(pool(), "text/plain"))); + // future $response:body + body_string=NEW String(pool(), buf); } - // store 'body' overwriting any response already had - response.fields().put(*body_name, NEW VString(*body_string)); + // ERROR. write it out + output_result(*body_string, header_only); } CATCH(e) { // exception in request exception handler @@ -254,26 +361,29 @@ void Request::core(Exception& system_exc // 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(), + THROW(rethrow_me.type(), rethrow_me.code(), rethrow_me.problem_source(), rethrow_me.comment()); } -VStateless_class *Request::use_file( - const char *file, bool fail_on_read_problem, +VStateless_class *Request::use_file(const String& file_spec, bool fail_on_read_problem, const String *name, VStateless_class *base_class) { - // TODO: обнаружить|решить cyclic dependences - char *source=file_read(pool(), file, fail_on_read_problem); + // cyclic dependence check + if(used_files.get(file_spec)) + return base_class; + used_files.put(file_spec, (Hash::Val *)true); + + + char *source=file_read_text(pool(), file_spec, fail_on_read_problem); if(!source) return base_class; - return use_buf(source, file, 0/*new class*/, name, base_class); + return use_buf(source, file_spec.cstr(), 0/*new class*/, name, base_class); } -VStateless_class *Request::use_buf( - const char *source, const char *file, +VStateless_class *Request::use_buf(const char *source, const char *file, VStateless_class *aclass, const String *name, VStateless_class *base_class) { // compile loaded class @@ -284,32 +394,65 @@ VStateless_class *Request::use_buf( return &cclass; } -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 +*/ +void Request::fail_if_junction_(bool is, Value& value, + const String& method_name, const 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, PATH_DELIMITER_CHAR); - strcat(result, PATH_DELIMITER_STRING); - strcat(result, file); +const String& Request::relative(const char *apath, const String& relative_name) { + int lpath_buf_size=strlen(apath)+1; + char *lpath=(char *)malloc(lpath_buf_size); + memcpy(lpath, apath, lpath_buf_size); + rsplit(lpath, '/'); + String& result=*NEW String(pool(), lpath); + result.APPEND_CONST("/"); + result.append(relative_name, String::UL_PASS_APPENDED); return result; } -char *Request::absolute(const char *name) { - if(name[0]=='/') { - char *result=(char *)malloc(strlen(info.document_root)+strlen(name)+1); - strcpy(result, info.document_root); - strcat(result, name); +const String& Request::absolute(const String& relative_name) { + char *relative_name_cstr=relative_name.cstr(); + if(relative_name_cstr[0]=='/') { + String& result=*NEW String(pool(), info.document_root); + result.append(relative_name, String::UL_PASS_APPENDED); return result; } else - return relative(info.uri, name); + return relative(info.path_translated, relative_name); +} + +void Request::output_result(const String& body_string, bool header_only) { + // header: cookies + cookie.output_result(); + + // set default content-type + response.fields().put_dont_replace(*content_type_name, default_content_type); + + // prepare header: $response:fields without :body + response.fields().for_each(add_header_attribute, /*excluding*/ body_name); + + // prepare... + const char *body=body_string.cstr(); + size_t content_length=strlen(body); + + // prepare header: content-length + if(content_length) { // useful for redirecting [header "location: http://..."] + char content_length_cstr[MAX_NUMBER]; + snprintf(content_length_cstr, MAX_NUMBER, "%lu", content_length); + SAPI::add_header_attribute(pool(), "content-length", content_length_cstr); + } + + // send header + SAPI::send_header(pool()); + + // send body + if(!header_only) + SAPI::send_body(pool(), body, content_length); }