--- parser3/src/main/pa_globals.C 2001/03/19 20:07:38 1.17 +++ parser3/src/main/pa_globals.C 2005/12/09 07:18:07 1.179 @@ -1,68 +1,54 @@ /** @file Parser: globals. - Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) + Copyright (c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) +*/ - Author: Alexander Petrosyan (http://design.ru/paf) +static const char * const IDENT_GLOBALS_C="$Date: 2005/12/09 07:18:07 $"; - $Id: pa_globals.C,v 1.17 2001/03/19 20:07:38 paf Exp $ -*/ +#include "pa_config_includes.h" + +#ifdef XML +#include "libxml/xmlversion.h" +#include "libxslt/extensions.h" +#include "libxslt/xsltutils.h" +extern "C" { +#include "libexslt/exslt.h" +}; +#endif + +#include "pcre.h" #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" - -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; +#include "pa_string.h" +#include "pa_sapi.h" +#include "pa_threads.h" +#include "pa_xml_io.h" +#include "pa_common.h" + +#include "pa_cache_managers.h" -String *result_var_name; +// defines -String *limits_name; -String *post_max_size_name; +//#define PA_DEBUG_XML_GC_MEMORY -String *defaults_name; +//20051130 trying to remove this, author claims that fixed a lot there // 20040920 for now both workarounds needed. wait for new libxml/xsl versions +// // there is a problem with testcase, it's unstable. +// // see paf@six/bug20040920/cgi-bin/t for it-showed-bug-on-20040920-day +// #define PA_WORKAROUND_BUGGY_FREE_IN_LIBXML_GC_MEMORY +// #define PA_WORKAROUND_BUGGY_MALLOCATOMIC_IN_LIBXML_GC_MEMORY -Hash *untaint_lang_name2enum; +// globals 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; @@ -87,74 +73,388 @@ static void setup_hex_value() { hex_value['f'] = 15; } -void globals_init(Pool& pool) { + +Hash thread_request; +void pa_register_thread_request(Request& r) { + thread_request.put(pa_get_thread_id(), &r); +} +/// retrives request set by pa_set_request function, useful in contextless places [slow] +Request& pa_thread_request() { + return *thread_request.get(pa_get_thread_id()); +} + +#ifdef PA_RELEASE_ASSERTS +void pa_release_assert(const char* str, const char* file, int line) { + SAPI::die("%s at %s:%d", str, file, line); +} +#endif + + +#ifdef XML + +class XML_Generic_error_info { +public:/*internal, actually*/ + char buf[MAX_STRING*5]; + size_t used; +public: + XML_Generic_error_info() { + buf[used=0]=0; + } + const char* get() { + return used? buf: 0; + } +}; + +static Hash xml_generic_error_infos; + +static void xmlParserGenericErrorFunc(void * /*ctx*/, const char* msg, ...) { +//_asm int 3; + pa_thread_t thread_id=pa_get_thread_id(); + + XML_Generic_error_info* p; + { + SYNCHRONIZED; // find+fill blocked + + // first try to get existing for this thread_id + p=xml_generic_error_infos.get(thread_id); + if(!p) // occupy empty one + xml_generic_error_infos.put(thread_id, (p=new(PointerFreeGC) XML_Generic_error_info)); + } + + va_list args; + va_start(args, msg); + p->used+=vsnprintf(p->buf+p->used, sizeof(p->buf)-p->used, msg, args); + va_end(args); +} + +bool xmlHaveGenericErrors() { + pa_thread_t thread_id=pa_get_thread_id(); + + SYNCHRONIZED; // find blocked + + return xml_generic_error_infos.get(thread_id)!=0; +} + +const char* xmlGenericErrors() { + pa_thread_t thread_id=pa_get_thread_id(); + + SYNCHRONIZED; // find+free blocked + + if(XML_Generic_error_info *p=xml_generic_error_infos.get(thread_id)) { + xml_generic_error_infos.remove(thread_id); + return p->get(); + } + + return 0; // no errors for our thread_id registered +} + +#endif + +void pa_globals_destroy(void *) { + try { +#ifdef XML + GdomeException exc; + gdome_di_unref (domimpl, &exc); + // uncomment SAPI::abort below if adding potential-throw code here +#endif + } catch(.../*const Exception& e*/) { +// SAPI::abort("pa_globals_destroy failed: %s", e.comment()); + } +} + + +#ifdef XML + +static char *pa_GC_strdup(const char *s) { + if(!s) + return 0; + + size_t size=strlen(s)+1; + char *result=(char *)GC_MALLOC_ATOMIC(size); + if(!result) + SAPI::abort("out of memory (while duplicating XML string [size=%d])", size); + + memcpy(result, s, size); +#ifdef PA_DEBUG_XML_GC_MEMORY + fprintf(stderr, "pa_GC_strdup(%p=%s, length=%d)=0x%p\n", s, s, size, result); +#endif + return result; +} + +#ifdef PA_DEBUG_XML_GC_MEMORY +void *pa_look_for[]={(void*)0x84ba980,(void*)0x8969460,(void*)0x0,(void*)0x0, + (void*)0x0,(void*)0x0,(void*)0x0,(void*)0x0}; +bool pa_looked(void*p) { + for(int i=0; i<8; i++) + if(pa_look_for[i]==p) { + __asm__("int $3"); + return true; + } + if((((int)p)&~0xFF)==0x89a7700) { + __asm__("int $3"); + return true; + } + return false; +} +static void* pa_gc_malloc_log(size_t size){ + void *p=pa_gc_malloc(size); + fprintf(stderr, "pa_gc_malloc_log(%d)=0x%p\n", size, p); + if(pa_looked(p)) + fprintf(stderr,"catched debug malloc(%d)=0x%p\n", size, p); + return p; + +} +static void* pa_gc_malloc_atomic_log(size_t size){ +#ifdef PA_WORKAROUND_BUGGY_MALLOCATOMIC_IN_LIBXML_GC_MEMORY + void *p=pa_gc_malloc(size); + fprintf(stderr, "pa_gc_malloc_atomicFAKE_log(%d)=0x%p\n", size, p); +#else + void *p=pa_gc_malloc_atomic(size); + fprintf(stderr, "pa_gc_malloc_atomic_log(%d)=0x%p\n", size, p); +#endif + if(pa_looked(p)) + fprintf(stderr,"catched debug malloc atomic(%d)=0x%p\n", size, p); + return p; +} +static void* pa_gc_realloc_log(void *ptr, size_t size){ + void *p=pa_gc_realloc(ptr, size); + fprintf(stderr, "pa_gc_realloc_log(0x%p, %d)=0x%p\n", ptr, size, p); + if(pa_looked(p)) + fprintf(stderr,"catched debug realloc(%d)=0x%p\n", size, p); + return p; +} +static void pa_gc_free_log(void *p){ +#ifdef PA_WORKAROUND_BUGGY_FREE_IN_LIBXML_GC_MEMORY + fprintf(stderr, "pa_gc_freeIGNORE_log(0x%p)\n", p); +#else + fprintf(stderr, "pa_gc_free_log(0x%p)\n", p); +#endif + if(pa_looked(p)) + fprintf(stderr,"catched debug free(0x%p)\n", p); +#ifndef PA_WORKAROUND_BUGGY_FREE_IN_LIBXML_GC_MEMORY + pa_gc_free(p); +#endif +} +#else + +inline void *check(void *result, const char *where, size_t size) { + if(!result) + SAPI::abort("out of memory (while %s [size=%d])", where, size); + + return result; +} +static void* pa_gc_malloc_nonull(size_t size) { + return check(pa_gc_malloc(size), "allocating XML compsite memory", size); +} +static void* pa_gc_malloc_atomic_nonull(size_t size) { +#ifdef PA_WORKAROUND_BUGGY_MALLOCATOMIC_IN_LIBXML_GC_MEMORY + return check(pa_gc_malloc(size), "allocating XML composite memory (asked atomic)", size); +#else + return check(pa_gc_malloc_atomic(size), "allocating XML atomic memory", size); +#endif +} +static void* pa_gc_realloc_nonull(void* ptr, size_t size) { + return check(pa_gc_realloc(ptr, size), "reallocating XML memory", size); +} + +static void pa_gc_free_maybeignore( + void* +#ifndef PA_WORKAROUND_BUGGY_FREE_IN_LIBXML_GC_MEMORY + ptr +#endif + ) { +#ifndef PA_WORKAROUND_BUGGY_FREE_IN_LIBXML_GC_MEMORY + pa_gc_free(ptr); +#endif +} + +#endif +#endif + +void pa_CORD_oom_fn(void) { + SAPI::abort("out of memory (while expanding string)"); +} + +/** + @todo gc: libltdl: substitute lt_dlmalloc & co +*/ +static void gc_substitute_memory_management_functions() { + // in libxml & libxslt +#ifdef XML + // asking to use GC memory +#if LIBXML_VERSION >= 20507 +#ifdef PA_DEBUG_XML_GC_MEMORY + xmlGcMemSetup( + /*xmlFreeFunc */pa_gc_free_log, + /*xmlMallocFunc */pa_gc_malloc_log, + /*xmlMallocFunc */pa_gc_malloc_atomic_log, + /*xmlReallocFunc */pa_gc_realloc_log, + /*xmlStrdupFunc */pa_GC_strdup); +#else + xmlGcMemSetup( + /*xmlFreeFunc */pa_gc_free_maybeignore, + /*xmlMallocFunc */pa_gc_malloc_nonull, + /*xmlMallocFunc */pa_gc_malloc_atomic_nonull, + /*xmlReallocFunc */pa_gc_realloc_nonull, + /*xmlStrdupFunc */pa_GC_strdup); +#endif + +#else + xmlMemSetup( + /*xmlFreeFunc */pa_gc_free_maybeignore, + /*xmlMallocFunc */pa_gc_malloc, + /*xmlReallocFunc */pa_gc_realloc, + /*xmlStrdupFunc */pa_GC_strdup); +#endif + +#endif + + // pcre + pcre_malloc=pa_gc_malloc; + pcre_free=pa_gc_free; + + + // cord + CORD_oom_fn=pa_CORD_oom_fn; +} + +/** + @test hint on one should call this for each thread xmlSubstituteEntitiesDefault(1); +*/ +void pa_globals_init() { + // global variables + cache_managers=new Cache_managers; + + + // in various libraries + gc_substitute_memory_management_functions(); + // 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(); - - // 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 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); + + pa_xml_io_init(); +#endif +} + +void pa_globals_done() { + delete cache_managers; cache_managers=0; } + +#ifdef _MSC_VER + +#ifndef PA_DEBUG_DISABLE_GC +# define GC_LIB "../../../../win32/gc" +# ifdef _DEBUG +# pragma comment(lib, GC_LIB "/Debug/gc.lib") +# else +# pragma comment(lib, GC_LIB "/Release/gc.lib") +# endif + +#endif + +#ifdef XML +# define GNOME_LIBS "../../../../win32/gnome" +# pragma comment(lib, GNOME_LIBS "/glib/lib/libglib-1.3-11.lib") +# ifdef _DEBUG + +# ifdef LIBXML_STATIC +# pragma comment(lib, GNOME_LIBS "/libxml2-x.x.x/win32/debug/lib/libxml2_a.lib") +# else +# pragma comment(lib, GNOME_LIBS "/libxml2-x.x.x/win32/debug/lib/libxml2.lib") +# endif + +# ifdef LIBXSLT_STATIC +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/debug/lib/libxslt_a.lib") +# else +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/debug/lib/libxslt.lib") +# endif +# ifdef LIBEXSLT_STATIC +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/debug/lib/libexslt_a.lib") +# else +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/debug/lib/libexslt.lib") +# endif + +# ifdef LIBGDOME_STATIC +# pragma comment(lib, GNOME_LIBS "/gdome2-x.x.x/win32/DebugStatic/libgdome.lib") +# else +# pragma comment(lib, GNOME_LIBS "/gdome2-x.x.x/win32/DebugDynamic/libgdome.lib") +# endif + +#else + +# ifdef LIBXML_STATIC +# pragma comment(lib, GNOME_LIBS "/libxml2-x.x.x/win32/release/lib/libxml2_a.lib") +# else +# pragma comment(lib, GNOME_LIBS "/libxml2-x.x.x/win32/release/lib/libxml2.lib") +# endif + +# ifdef LIBXSLT_STATIC +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/release/lib/libxslt_a.lib") +# else +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/release/lib/libxslt.lib") +# endif +# ifdef LIBEXSLT_STATIC +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/release/lib/libexslt_a.lib") +# else +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/release/lib/libexslt.lib") +# endif + +# ifdef LIBGDOME_STATIC +# pragma comment(lib, GNOME_LIBS "/gdome2-x.x.x/win32/ReleaseStatic/libgdome.lib") +# else +# pragma comment(lib, GNOME_LIBS "/gdome2-x.x.x/win32/ReleaseDynamic/libgdome.lib") +# endif + +# endif +#endif + +#endif