--- parser3/src/main/pa_globals.C 2001/03/19 21:39:34 1.18 +++ parser3/src/main/pa_globals.C 2003/03/06 12:21:19 1.152.2.17 @@ -1,69 +1,39 @@ /** @file Parser: globals. - Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) - - Author: Alexander Petrosyan (http://design.ru/paf) - - $Id: pa_globals.C,v 1.18 2001/03/19 21:39:34 paf Exp $ + Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) */ -#include "pa_globals.h" -#include "_string.h" -#include "_double.h" -#include "_int.h" -#include "_table.h" -#include "_form.h" -#include "_env.h" -#include "_request.h" -#include "_response.h" -#include "_cookie.h" -#include "_file.h" - -Service_funcs service_funcs; - -String *content_type_name; -String *body_name; -String *value_name; -String *expires_name; -String *path_name; -String *name_name; -String *size_name; -String *text_name; - -String *exception_method_name; - -String *unnamed_name; -String *empty_string; - -String *auto_method_name; -String *main_method_name; - -String *root_class_name; -String *main_class_name; -String *env_class_name; -String *table_class_name; -String *form_class_name; -String *request_class_name; -String *response_class_name; -String *cookie_class_name; - -String *result_var_name; +static const char* IDENT_GLOBALS_C="$Date: 2003/03/06 12:21:19 $"; -String *limits_name; -String *post_max_size_name; +#include "pa_config_includes.h" -String *defaults_name; +#ifdef XML +#include "libxslt/extensions.h" +#include "libxslt/xsltutils.h" +extern "C" { +#include "libexslt/exslt.h" +}; +#endif -Hash *untaint_lang_name2enum; +#include "pa_globals.h" +#include "pa_string.h" +#include "pa_sapi.h" +#include "pa_threads.h" + +#ifdef XML +#include "pa_stylesheet_manager.h" +#endif short hex_value[0x100]; +#ifdef XML +GdomeDOMImplementation *domimpl; +#endif + static void setup_hex_value() { - int i; - for (i=0; (i < 0x100); i++) { - hex_value[i] = 0; - } + memset(hex_value, 0, sizeof(hex_value)); hex_value['0'] = 0; hex_value['1'] = 1; hex_value['2'] = 2; @@ -88,75 +58,250 @@ static void setup_hex_value() { hex_value['f'] = 15; } -void globals_init(Pool& pool) { +#ifdef XML + +const int MAX_CONCURRENT_XML_GENERIC_ERROR_THREADS=10; + +class XML_Generic_error_info { +public: + pa_thread_t thread_id; + char buf[MAX_STRING]; + size_t used; +public: + XML_Generic_error_info() { + reset(); + } + void reset() { + thread_id=0; + buf[used=0]=0; + } + CharPtr get_and_reset() { + CharPtr result(new char[used+1]); + memcpy(result.get(), buf, used+1); + reset(); + return result; + } +} xml_generic_error_infos[MAX_CONCURRENT_XML_GENERIC_ERROR_THREADS]; + +XML_Generic_error_info *xml_generic_error_info(pa_thread_t thread_id) { + for(int i=0; ithread_id==thread_id) + return p; + } + return 0; +} + +static void +xmlParserGenericErrorFunc(void *ctx, const char* msg, ...) { + pa_thread_t thread_id=pa_get_thread_id(); + + // infinitely looking for free slot to fill it + while(true) { + SYNCHRONIZED; // find+fill blocked + + // first try to get existing for this thread_id + XML_Generic_error_info *p=xml_generic_error_info(thread_id); + if(!p) { // occupy empty one + p=xml_generic_error_info(0); + if(!p) // wait for empty for it to appear + continue; + } + + p->thread_id=thread_id; + + va_list args; + va_start(args, msg); + vsnprintf(p->buf+p->used, sizeof(p->buf)-p->used, msg, args); + va_end(args); + + break; + } +} + +bool xmlHaveGenericErrors() { + pa_thread_t thread_id=pa_get_thread_id(); + + SYNCHRONIZED; // find blocked + + return xml_generic_error_info(thread_id)!=0; +} + +CharPtr xmlGenericErrors() { + pa_thread_t thread_id=pa_get_thread_id(); + + SYNCHRONIZED; // find+free blocked + + XML_Generic_error_info *p=xml_generic_error_info(thread_id); + if(!p) // no errors for our thread_id registered + return CharPtr(0); + + return p->get_and_reset(); +} + +/** + * xmlFileMatchWithLocalhostEqDocumentRoot: + * filename: the URI for matching + * + * check if the URI matches an HTTP one + * + * Returns 1 if matches, 0 otherwise + */ +static int +xmlFileMatchLocalhost(const char* filename) { + if (!strncmp(filename, "http://localhost", 16)) + return(1); + return(0); +} + + +/** + * xmlFileOpenHttpLocalhost : + * filename: the URI for matching + * + * http://localhost/abc -> $ENV{DOCUMENT_ROOT}/abc | ./abc + * + * input from FILE *, supports compressed input + * if filename is " " then the standard input is used + * + * Returns an I/O context or NULL in case of error + */ +static void * +xmlFileOpenLocalhost (const char* filename) { + FILE *fd; + const char* documentRoot; + char path[1000]; + + path[0]=0; + strcat(path, (documentRoot=getenv("DOCUMENT_ROOT"))?documentRoot:"."); + strcat(path, &filename[16]); + +#ifdef WIN32 + fd = fopen(path, "rb"); +#else + fd = fopen(path, "r"); +#endif /* WIN32 */ + return((void *) fd); +} + +/** + * xmlFileRead: + * @context: the I/O context + * @buffer: where to drop data + * @len: number of bytes to write + * + * Read @len bytes to @buffer from the I/O channel. + * + * Returns the number of bytes written + */ +static int +pa_xmlFileRead (void * context, char * buffer, int len) { + return(fread(&buffer[0], 1, len, (FILE *) context)); +} + +/** + * xmlFileClose: + * @context: the I/O context + * + * Close an I/O channel + */ +static int +pa_xmlFileClose (void * context) { + return ( ( fclose((FILE *) context) == EOF ) ? -1 : 0 ); +} + +#endif + +void pa_globals_destroy(void *) { + try { +#ifdef XML + GdomeException exc; + gdome_di_unref (domimpl, &exc); +#endif + } catch(const Exception& e) { + SAPI::abort("pa_globals_destroy failed: %s", e.comment()); + } +} + + +/// @test hint on one should call this for each thread xmlSubstituteEntitiesDefault(1); +void pa_globals_init() { + // hex value setup_hex_value(); - // names - content_type_name=new(pool) String(pool, CONTENT_TYPE_NAME); - body_name=new(pool) String(pool, BODY_NAME); - value_name=new(pool) String(pool, VALUE_NAME); - expires_name=new(pool) String(pool, EXPIRES_NAME); - path_name=new(pool) String(pool, PATH_NAME); - name_name=new(pool) String(pool, NAME_NAME); - size_name=new(pool) String(pool, SIZE_NAME); - text_name=new(pool) String(pool, TEXT_NAME); - - exception_method_name=new(pool) String(pool, EXCEPTION_METHOD_NAME); - - unnamed_name=new(pool) String(pool, UNNAMED_NAME); - empty_string=new(pool) String(pool); - - auto_method_name=new(pool) String(pool, AUTO_METHOD_NAME); - main_method_name=new(pool) String(pool, MAIN_METHOD_NAME); - - root_class_name=new(pool) String(pool, ROOT_CLASS_NAME); - main_class_name=new(pool) String(pool, MAIN_CLASS_NAME); - table_class_name=new(pool) String(pool, TABLE_CLASS_NAME); - env_class_name=new(pool) String(pool, ENV_CLASS_NAME); - form_class_name=new(pool) String(pool, FORM_CLASS_NAME); - request_class_name=new(pool) String(pool, REQUEST_CLASS_NAME); - response_class_name=new(pool) String(pool, RESPONSE_CLASS_NAME); - cookie_class_name=new(pool) String(pool, COOKIE_CLASS_NAME); - - result_var_name=new(pool) String(pool, RESULT_VAR_NAME); - - - limits_name=new(pool) String(pool, LIMITS_NAME); - post_max_size_name=new(pool) String(pool, POST_MAX_SIZE_NAME); - - defaults_name=new(pool) String(pool, DEFAULTS_NAME); - - // hashes - untaint_lang_name2enum=new(pool) Hash(pool); - String as_is(pool, "as-is"); - untaint_lang_name2enum->put(as_is, (int)String::Untaint_lang::AS_IS); - String header(pool, "header"); - untaint_lang_name2enum->put(header, (int)String::Untaint_lang::HEADER); - String uri(pool, "uri"); - untaint_lang_name2enum->put(uri, (int)String::Untaint_lang::URI); - String table(pool, "table"); - untaint_lang_name2enum->put(table, (int)String::Untaint_lang::TABLE); - String sql(pool, "sql"); - untaint_lang_name2enum->put(sql, (int)String::Untaint_lang::SQL); - String js(pool, "js"); - untaint_lang_name2enum->put(js, (int)String::Untaint_lang::JS); - String html(pool, "html"); - untaint_lang_name2enum->put(html, (int)String::Untaint_lang::HTML); - String html_typo(pool, "html-typo"); - untaint_lang_name2enum->put(html_typo, (int)String::Untaint_lang::HTML_TYPO); - - // read-only stateless classes - initialize_string_class(pool, *(string_class=new(pool) VStateless_class(pool))); string_class->freeze(); - initialize_double_class(pool, *(double_class=new(pool) VStateless_class(pool))); double_class->freeze(); - initialize_int_class(pool, *(int_class=new(pool) VStateless_class(pool))); int_class->freeze(); - initialize_table_class(pool, *(table_class=new(pool) VStateless_class(pool))); table_class->freeze(); - initialize_file_class(pool, *(file_class=new(pool) VStateless_class(pool))); file_class->freeze(); - - // read-only stateless base classes - initialize_env_base_class(pool, *(env_base_class=new(pool) VStateless_class(pool))); env_base_class->set_name(*env_class_name); env_base_class->freeze(); - initialize_form_base_class(pool, *(form_base_class=new(pool) VStateless_class(pool))); form_base_class->set_name(*form_class_name); form_base_class->freeze(); - initialize_request_base_class(pool, *(request_base_class=new(pool) VStateless_class(pool))); request_base_class->set_name(*request_class_name); request_base_class->freeze(); - initialize_response_base_class(pool, *(response_base_class=new(pool) VStateless_class(pool))); response_base_class->set_name(*response_class_name); response_base_class->freeze(); - initialize_cookie_base_class(pool, *(cookie_base_class=new(pool) VStateless_class(pool))); cookie_base_class->set_name(*cookie_class_name); cookie_base_class->freeze(); +#ifdef XML + // initializing xml libs + + /* First I get a DOMImplementation reference */ + domimpl = gdome_di_mkref (); + /* + * Register the EXSLT extensions and the test module + */ + exsltRegisterAll(); + xsltRegisterTestModule(); + xmlDefaultSAXHandlerInit(); + /* + * disable CDATA from being built in the document tree + */ + // never added yet xmlDefaultSAXHandler.cdataBlock = NULL; + + /* + * Initialization function for the XML parser. + * This is not reentrant. Call once before processing in case of + * use in multithreaded programs. + */ + xmlInitParser(); + + // 1. this is needed for proper parsing of stylesheets + // there were a situation where honest entity ruined innocent xpath compilation + // doc says "you sould turn it on on stylesheet load" without deepening into details + // 2. when dom tree with entites goes under transform text nodes + // got [erroreosly] cut on first entity occurance + // -- + // that is why this is: + xmlSubstituteEntitiesDefault(1); + + // Bit in the loadsubset context field to tell to do ID/REFs lookups + xmlLoadExtDtdDefaultValue |= XML_DETECT_IDS; + // Bit in the loadsubset context field to tell to do complete the elements attributes lists + // with the ones defaulted from the DTDs + xmlLoadExtDtdDefaultValue |= XML_COMPLETE_ATTRS; + + // validate each document after load/create (?) + //xmlDoValidityCheckingDefaultValue = 1; + +//regretfully this not only replaces entities on parse, but also on generate xmlSubstituteEntitiesDefault(1); + // never switched this on xmlIndentTreeOutput=1; + + xmlSetGenericErrorFunc(0, xmlParserGenericErrorFunc); + xsltSetGenericErrorFunc(0, xmlParserGenericErrorFunc); +// FILE *f=fopen("y:\\xslt.log", "wt"); +// xsltSetGenericDebugFunc(f/*stderr*/, 0); + + // http://localhost/abc -> $ENV{DOCUMENT_ROOT}/abc | ./abc + xmlRegisterInputCallbacks( + xmlFileMatchLocalhost, xmlFileOpenLocalhost, + pa_xmlFileRead, pa_xmlFileClose); + + // XSLT stylesheet manager + cache_managers->put(*NEW String(pool, "stylesheet"), + stylesheet_manager=NEW Stylesheet_manager(pool)); +#endif } + +#if defined(XML) && defined(_MSC_VER) +# define GNOME_LIBS "/parser3project/win32xml/win32/gnome" +# pragma comment(lib, GNOME_LIBS "/glib/lib/libglib-1.3-11.lib") +# ifdef _DEBUG +# pragma comment(lib, GNOME_LIBS "/libxml2-x.x.x/win32/dsp/libxml2_so_debug/libxml2.lib") +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libexslt_so_debug/libexslt.lib") +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libxslt_so_debug/libxslt.lib") +# pragma comment(lib, GNOME_LIBS "/gdome2-x.x.x/win32/dsp/Debug/libgdome.lib") +# else +# pragma comment(lib, GNOME_LIBS "/libxml2-x.x.x/win32/dsp/libxml2_so_release/libxml2.lib") +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libexslt_so_release/libexslt.lib") +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libxslt_so_release/libxslt.lib") +# pragma comment(lib, GNOME_LIBS "/gdome2-x.x.x/win32/dsp/Release/libgdome.lib") +# endif +#endif