--- parser3/src/main/pa_request.C 2001/03/19 16:06:14 1.53 +++ parser3/src/main/pa_request.C 2001/04/04 06:16:21 1.94 @@ -1,25 +1,41 @@ -/* - 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 1.53 2001/03/19 16:06:14 paf Exp $ + $Id: pa_request.C,v 1.94 2001/04/04 06:16:21 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_vclass.h" #include "_root.h" -#include "_env.h" #include "_table.h" +#include "_file.h" #include "pa_globals.h" #include "pa_vint.h" #include "pa_vmframe.h" #include "pa_types.h" +#include "pa_vtable.h" +#include "_random.h" +#include "pa_vfile.h" + +/// $limits.post_max_size default 10M +const size_t MAX_POST_SIZE_DEFAULT=10*0x400*400; +/// 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"; + +// Request::Request(Pool& apool, Info& ainfo, String::Untaint_lang adefault_lang) : Pooled(apool), @@ -33,7 +49,10 @@ Request::Request(Pool& apool, fclasses(apool), fdefault_lang(adefault_lang), flang(adefault_lang), info(ainfo), - fdefault_content_type(0) + used_files(apool), + default_content_type(0), + mime_types(0), + connection(0) { // root superclass, // parent of all classes, @@ -42,8 +61,10 @@ 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); - + // file class + classes().put(*file_class_name, file_class); + // random class + classes().put(*random_class_name, random_class); // env class classes().put(*env_class_name, &env); // form class @@ -56,85 +77,129 @@ Request::Request(Pool& apool, classes().put(*cookie_class_name, &cookie); } -static void output_response_attribute(const Hash::Key& aattribute, Hash::Value *ameaning, - void *info) { +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; - String attribute(aattribute.pool()); - attribute.append(aattribute, String::Untaint_lang::HEADER, true); + Value& lmeaning=*static_cast(ameaning); + Pool& pool=lmeaning.pool(); - (*service_funcs.output_header_attribute)( - attribute.cstr(), - attributed_meaning_string(static_cast(ameaning)).cstr()); + 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_CLEAN(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_class=use_file( - auto_filespec, false/*ignore possible read problem*/, - main_class_name, main_class); - } - - Value *element; - // $MAIN:limits hash used here, + // $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; + { + 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->as_double():0; + size_t post_max_size=value?value:MAX_POST_SIZE_DEFAULT; + + form.fill_fields(*this, post_max_size); + } - form.fill_fields(*this, post_max_size); + // filling cookies cookie.fill_fields(*this); - // 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; - fdefault_content_type=defaults?defaults->get_element(*content_type_name):0; + // loading site auto.p + if(site_auto_path) { + String& filespec=*NEW String(pool()); + filespec.APPEND_CLEAN(site_auto_path, 0, "site_auto", 0); + filespec.APPEND_CONST("/" AUTO_FILE_NAME); + main_class=use_file( + filespec, site_auto_fail, + 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); + size_t document_root_size=strlen(info.document_root); + if(info.document_root[document_root_size-1]=='/') + document_root_size--; + memcpy(file_spec, info.document_root, document_root_size); + + /* /requested/file.html */ + char *branches=(char *)malloc(strlen(info.path_translated)+1); + strcpy(branches, info.path_translated+document_root_size); + char *next=branches; + char *append_here=file_spec+document_root_size; + + 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_CLEAN(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_CLEAN(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):0; + if(Value *element=main_class->get_element(*html_typo_name)) + if(Table *table=element->get_table()) + pool().set_tag(table); + + // $MAIN:MIME-TYPES + if(Value *element=main_class->get_element(*mime_types_name)) + if(Table *table=element->get_table()) + mime_types=table; + // execute @main[] const String *body_string=execute_method(*main_class, *main_method_name); if(!body_string) @@ -142,18 +207,62 @@ void Request::core(Exception& system_exc 0, "'"MAIN_METHOD_NAME"' method not found"); + VString body_vstring_before_post_process(*body_string); + VString *body_vstring_after_post_process=&body_vstring_before_post_process; + + // post-process + if(Value *value=main_class->get_element(*post_process_method_name)) + if(Junction *junction=value->get_junction()) + if(const Method *method=junction->method) { + // preparing to pass parameters to + // @post-process[data] + VMethodFrame frame(pool(), *junction); + frame.set_self(*main_class); + + frame.store_param(method->name, + &body_vstring_before_post_process); + body_vstring_after_post_process= + NEW VString(*execute_method(frame, *method)); + } + + const VFile *body_file=body_vstring_after_post_process->as_vfile(); + // 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 + body_file=body_value->as_vfile(); // OK. write out the result - output_result(*body_string); + output_result(*body_file, 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 + // 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; @@ -177,7 +286,6 @@ void Request::core(Exception& system_exc const String *problem_source=e.problem_source(); // origin - String origin_name(pool(), "origin"); Value *origin_value=0; #ifndef NO_STRING_ORIGIN if(problem_source) { @@ -192,11 +300,10 @@ void Request::core(Exception& system_exc } } #endif - frame.store_param(origin_name, + frame.store_param(method->name, origin_value?origin_value:NEW VUnknown(pool())); // source - String source_name(pool(), "source"); Value *source_value=0; if(problem_source) { String& problem_source_copy=*NEW String(pool()); @@ -204,18 +311,16 @@ void Request::core(Exception& system_exc flang, true); source_value=NEW VString(problem_source_copy); } - frame.store_param(source_name, + frame.store_param(method->name, source_value?source_value:NEW VUnknown(pool())); // comment - String comment_name(pool(), "comment"); String *comment_value=NEW String(pool(), e.comment(), true); - frame.store_param(comment_name, + frame.store_param(method->name, NEW VString(*comment_value)); // type - String type_name(pool(), "type"); Value *type_value; if(e.type()) { String& type_copy=*NEW String(pool()); @@ -223,10 +328,9 @@ void Request::core(Exception& system_exc flang, true)); } else type_value=NEW VUnknown(pool()); - frame.store_param(type_name, type_value); + frame.store_param(method->name, type_value); // code - String code_name(pool(), "code"); Value *code_value; if(e.code()) { String& code_copy=*NEW String(pool()); @@ -234,7 +338,7 @@ void Request::core(Exception& system_exc flang, true)); } else code_value=NEW VUnknown(pool()); - frame.store_param(code_name, code_value); + frame.store_param(method->name, code_value); // future $response:body= // execute ^exception[origin;source;comment;type;code] @@ -273,13 +377,16 @@ void Request::core(Exception& system_exc // future $response:content-type response.fields().put(*content_type_name, - NEW VString(*NEW String(pool(), "text/plain"))); + NEW VString(*NEW String(pool(), UNHANDLED_EXCEPTION_CONTENT_TYPE))); // future $response:body body_string=NEW String(pool(), buf); } + const VString body_vstring(*body_string); + const VFile *body_file=body_vstring.as_vfile(); + // ERROR. write it out - output_result(*body_string); + output_result(*body_file, header_only); } CATCH(e) { // exception in request exception handler @@ -291,27 +398,29 @@ void Request::core(Exception& system_exc 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(), + if(need_rethrow) // were there an exception for us to rethrow? + THROW(rethrow_me.type(), rethrow_me.code(), rethrow_me.problem_source(), rethrow_me.comment()); - } -/// \todo find|solve cyclic dependences -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) { - 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 @@ -326,8 +435,8 @@ VStateless_class *Request::use_buf( - 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, char *msg) { +void Request::fail_if_junction_(bool is, Value& value, + const String& method_name, const char *msg) { if((value.get_junction()!=0) ^ !is) THROW(0, 0, @@ -335,44 +444,68 @@ void Request::fail_if_junction_(bool is, 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) { +void Request::output_result(const VFile& body_file, bool header_only) { // header: cookies cookie.output_result(); - // set default content-type - if(fdefault_content_type) - response.fields().put_dont_replace(*content_type_name, fdefault_content_type); - - // header: $response:fields without :body - response.fields().foreach(output_response_attribute, /*excluding*/ body_name); - - // prepare - const char *body=body_string.cstr(); - size_t content_length=strlen(body); - - // header: content-length - char content_length_cstr[MAX_NUMBER]; - snprintf(content_length_cstr, MAX_NUMBER, "%d", content_length); - (*service_funcs.output_header_attribute)("content-length", content_length_cstr); - // body - (*service_funcs.output_body)(body, content_length); + // set content-type + if(String *body_file_content_type=static_cast( + body_file.fields().get(*vfile_mime_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, + default_content_type?default_content_type + :NEW VString(*NEW String(pool(), DEFAULT_CONTENT_TYPE))); + } + + // content-disposition + if(VString *vfile_name=static_cast(body_file.fields().get(*name_name))) { + VHash& vhash=*NEW VHash(pool()); + vhash.hash().put(*content_disposition_filename_name, vfile_name); + response.fields().put(*content_disposition_name, &vhash); + } + + // prepare header: $response:fields without :body + response.fields().for_each(add_header_attribute, /*excluding*/ body_name); + + // prepare... + const void *body=body_file.value_ptr(); + size_t content_length=body_file.value_size(); + + // 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); }