--- parser3/src/main/pa_globals.C 2002/01/21 12:10:08 1.101 +++ parser3/src/main/pa_globals.C 2021/01/16 15:47:05 1.212 @@ -1,357 +1,361 @@ /** @file Parser: globals. - Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) - Author: Alexander Petrosyan (http://paf.design.ru) - - $Id: pa_globals.C,v 1.101 2002/01/21 12:10:08 paf Exp $ + Copyright (c) 2001-2020 Art. Lebedev Studio (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) */ -#include "pa_globals.h" -#include "pa_string.h" -#include "pa_hash.h" -#include "pa_sql_driver_manager.h" -#include "pa_dictionary.h" -#include "pa_stylesheet_manager.h" -#include "pa_sapi.h" -#include "pa_cache_managers.h" -#include "pa_charsets.h" -#include "pa_charset.h" -#include "pa_threads.h" - -#ifdef DB2 -#include "pa_db_manager.h" -#endif +#include "pa_config_includes.h" #ifdef XML -//#include "libxml/parser.h" -//#include "libxslt/xslt.h" -//#include "libxslt/libxslt.h" +#include "libxml/xmlversion.h" #include "libxslt/extensions.h" +#include "libxslt/xsltutils.h" +extern "C" { #include "libexslt/exslt.h" +} #endif -String *content_type_name; -String *charset_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 *post_process_method_name; - -String *content_disposition_name; -String *content_disposition_filename_name; - -String *unnamed_name; - -String *auto_method_name; -String *main_method_name; - -String *main_class_name; - -String *result_var_name; -String *match_var_name; -String *string_pre_match_name; -String *string_match_name; -String *string_post_match_name; - -String *charsets_name; -String *mime_types_name; -String *vfile_mime_type_name; -String *origins_mode_name; - -String *class_path_name; - -String *switch_data_name; -String *case_default_value; - -String *sql_limit_name; -String *sql_offset_name; -String *sql_default_name; - -String *charset_UTF8_name; - -String *hash_default_element_name; - -Hash *untaint_lang_name2enum; - -GdomeDOMImplementation *domimpl; - -Charset *utf8_charset; - -short hex_value[0x100]; - -static void setup_hex_value() { - memset(hex_value, 0, sizeof(hex_value)); - hex_value['0'] = 0; - hex_value['1'] = 1; - hex_value['2'] = 2; - hex_value['3'] = 3; - hex_value['4'] = 4; - hex_value['5'] = 5; - hex_value['6'] = 6; - hex_value['7'] = 7; - hex_value['8'] = 8; - hex_value['9'] = 9; - hex_value['A'] = 10; - hex_value['B'] = 11; - hex_value['C'] = 12; - hex_value['D'] = 13; - hex_value['E'] = 14; - hex_value['F'] = 15; - hex_value['a'] = 10; - hex_value['b'] = 11; - hex_value['c'] = 12; - hex_value['d'] = 13; - hex_value['e'] = 14; - hex_value['f'] = 15; +#include "pa_globals.h" +#include "pa_socks.h" +#include "pa_sapi.h" +#include "pa_xml_io.h" +#include "pa_common.h" +#include "pa_symbols.h" + +#include "pa_cache_managers.h" + +#include "ltdl.h" +#include "pcre.h" + +volatile const char * IDENT_PA_GLOBALS_C="$Id: pa_globals.C,v 1.212 2021/01/16 15:47:05 moko Exp $" IDENT_PA_GLOBALS_H IDENT_PA_SAPI_H; + +// defines + +//#define PA_DEBUG_XML_GC_MEMORY + +// globals + +short hex_value[0x100] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, + 0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; + +THREAD_LOCAL Request* thread_request=NULL; // every TLS should be referenced elsewhere, or GC will collect it + +void pa_register_thread_request(Request& r) { + thread_request=&r; +} + +/// retrives request set by pa_set_request function, useful in contextless places [slow] +Request& pa_thread_request() { + if(!thread_request) + throw Exception(0, 0, "request is not initialized"); + return *thread_request; } -#ifdef XML -const int MAX_CONCURRENT_XML_GENERIC_ERROR_THREADS=10; +#ifdef XML -struct XML_Generic_error_info { - pa_thread_t thread_id; - char *message; -} 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; +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; } - return 0; -} + const char* get() { + return used? buf: 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; - } - - size_t offset=p->message?strlen(p->message):0; - p->message=(char *)realloc(p->message, offset+MAX_STRING); - if(!p->message) - SAPI::die( - "out of memory in 'xmlParserGenericErrorFunc', failed to reallocate to %u bytes", - offset+MAX_STRING); +THREAD_LOCAL XML_Generic_error_info* xml_generic_error_info = NULL; + +static void xmlParserGenericErrorFunc(void * /*ctx*/, const char* msg, ...) { + XML_Generic_error_info* p; + + if(!(p=xml_generic_error_info)) // occupy empty one + p=xml_generic_error_info=new(PointerFreeGC) XML_Generic_error_info; - va_list args; - va_start(args, msg); - vsnprintf(p->message+offset, MAX_STRING, msg, args); - va_end(args); + va_list args; + va_start(args, msg); + p->used+=vsnprintf(p->buf+p->used, sizeof(p->buf)-p->used, msg, args); + va_end(args); +} - break; +bool xmlHaveGenericErrors() { + return xml_generic_error_info!=0; +} + +const char* xmlGenericErrors() { + if(XML_Generic_error_info *p=xml_generic_error_info) { + xml_generic_error_info=0; + return p->get(); } + + return 0; // no errors for our thread_id registered } -const char *xmlGenericErrors() { - pa_thread_t thread_id=pa_get_thread_id(); +#endif // XML - SYNCHRONIZED; // find+free blocked +#ifdef XML - XML_Generic_error_info *p=xml_generic_error_info(thread_id); - if(!p) // no errors for our thread_id registered +static char *pa_GC_strdup(const char *s) { + if(!s) return 0; - const char *result=p->message; + size_t size=strlen(s)+1; + char *result=(char *)GC_MALLOC_ATOMIC(size); + + if(!result) + pa_fail_alloc("duplicate XML string",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 + +static void* pa_gc_malloc_log(size_t size){ + void *p=GC_MALLOC(size); + fprintf(stderr, "pa_gc_malloc_log(%d)=0x%p\n", size, p); + return p; + +} + +static void* pa_gc_malloc_atomic_log(size_t size){ + void *p=GC_MALLOC_ATOMIC(size); + fprintf(stderr, "pa_gc_malloc_atomic_log(%d)=0x%p\n", size, p); + return p; +} + +static void* pa_gc_realloc_log(void *ptr, size_t size){ + void *p=GC_REALLOC(ptr, size); + fprintf(stderr, "pa_gc_realloc_log(0x%p, %d)=0x%p\n", ptr, size, p); + return p; +} + +static void pa_gc_free_log(void *p){ + fprintf(stderr, "pa_gc_free_log(0x%p)\n", p); + GC_FREE(p); +} - // free slot up - memset(p, 0, sizeof(*p)); +#else - // it is up to caller to free it +inline void *check(void *result, const char *where, size_t size) { + if(!result) + pa_fail_alloc(where, size); return result; } + +static void* pa_gc_malloc_nonull(size_t size) { + return check(GC_MALLOC(size), "allocate XML compsite memory", size); +} + +static void* pa_gc_malloc_atomic_nonull(size_t size) { + return check(GC_MALLOC_ATOMIC(size), "allocate XML atomic memory", size); +} + +static void* pa_gc_realloc_nonull(void* ptr, size_t size) { + return check(GC_REALLOC(ptr, size), "reallocate XML memory", size); +} + +static void pa_gc_free_maybeignore(void* ptr) { + GC_FREE(ptr); +} + #endif -void pa_globals_destroy(void *) { - try { +#endif // XML + +void pa_CORD_oom_fn(void) { + pa_fail_alloc("expand string", 0); +} + +/** + @todo gc: libltdl: substitute lt_dlmalloc & co +*/ +static void gc_substitute_memory_management_functions() { + // in libxml & libxslt #ifdef XML - GdomeException exc; - gdome_di_unref (domimpl, &exc); + // asking to use GC memory +#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 - if(cache_managers) - cache_managers->~Cache_managers(); - charsets->~Charsets(); - - } catch(const Exception& e) { - SAPI::die("pa_globals_destroy failed: %s", e.comment()); - } +#endif + + // pcre + pcre_malloc=pa_malloc; + pcre_free=pa_free; + + // cord + CORD_oom_fn=pa_CORD_oom_fn; } -void pa_globals_init(Pool& pool) { - pool.register_cleanup(pa_globals_destroy, 0); +/** + @test hint on one should call this for each thread xmlSubstituteEntitiesDefault(1); +*/ +void pa_globals_init() { + +#ifndef PA_DEBUG_DISABLE_GC + // Dont collect unless explicitly requested. This is quicker (~30% ), + // but less memory-efficient(~8%), so deciding for speed. + GC_disable(); + // as we log allocation errors, we don't need default gc warnings (without timestamp and URI) + GC_set_warn_proc(GC_ignore_warn_proc); +#endif + + // init socks + pa_socks_init(); - #undef NEW - #define NEW new(pool) + // global variables + cache_managers=new Cache_managers; - // hex value - setup_hex_value(); + // in various libraries + gc_substitute_memory_management_functions(); - // names - content_type_name=NEW String(pool, CONTENT_TYPE_NAME); - charset_name=NEW String(pool, CHARSET_NAME); - body_name=NEW String(pool, BODY_NAME); - value_name=NEW String(pool, VALUE_NAME); - expires_name=NEW String(pool, EXPIRES_NAME); - path_name=NEW String(pool, PATH_NAME); - name_name=NEW String(pool, NAME_NAME); - size_name=NEW String(pool, SIZE_NAME); - text_name=NEW String(pool, TEXT_NAME); - - exception_method_name=NEW String(pool, EXCEPTION_METHOD_NAME); - post_process_method_name=NEW String(pool, POST_PROCESS_METHOD_NAME); - - content_disposition_name=NEW String(pool, CONTENT_DISPOSITION_NAME); - content_disposition_filename_name=NEW String(pool, CONTENT_DISPOSITION_FILENAME_NAME); - - unnamed_name=NEW String(pool, UNNAMED_NAME); - - auto_method_name=NEW String(pool, AUTO_METHOD_NAME); - main_method_name=NEW String(pool, MAIN_METHOD_NAME); - - main_class_name=NEW String(pool, MAIN_CLASS_NAME); - - result_var_name=NEW String(pool, RESULT_VAR_NAME); - match_var_name=NEW String(pool, MATCH_VAR_NAME); - string_pre_match_name=NEW String(pool, STRING_PRE_MATCH_NAME); - string_match_name=NEW String(pool, STRING_MATCH_NAME); - string_post_match_name=NEW String(pool, STRING_POST_MATCH_NAME); - - - charsets_name=NEW String(pool, CHARSETS_NAME); - mime_types_name=NEW String(pool, MIME_TYPES_NAME); - vfile_mime_type_name=NEW String(pool, VFILE_MIME_TYPE_NAME); - origins_mode_name=NEW String(pool, ORIGINS_MODE_NAME); - - class_path_name=NEW String(pool, CLASS_PATH_NAME); - - //^switch ^case - switch_data_name=NEW String(pool, SWITCH_DATA_NAME); - case_default_value=NEW String(pool, CASE_DEFAULT_VALUE); - - // sql - sql_limit_name=NEW String(pool, SQL_LIMIT_NAME); - sql_offset_name=NEW String(pool, SQL_OFFSET_NAME); - sql_default_name=NEW String(pool, SQL_DEFAULT_NAME); - - // charsets - charset_UTF8_name=NEW String(pool, CHARSET_UTF8_NAME); - - // hash - hash_default_element_name=NEW String(pool, HASH_DEFAULT_ELEMENT_NAME); - - - // hashes - untaint_lang_name2enum=NEW Hash(pool); - #define ULN(cstr, LANG) \ - untaint_lang_name2enum->put(*NEW String(pool, cstr), (int)String::UL_##LANG); - ULN("as-is", AS_IS); - ULN("file-spec", FILE_SPEC); - ULN("http-header", HTTP_HEADER); - ULN("mail-header", MAIL_HEADER); - ULN("uri", URI); - ULN("table", TABLE); - ULN("sql", SQL); - ULN("js", JS); - ULN("xml", XML); - ULN("html", HTML); - ULN("optimized-html", HTML|String::UL_OPTIMIZE_BIT); - - // charsets - charsets=NEW Charsets(pool); - charsets->put(*charset_UTF8_name, - utf8_charset=NEW Charset(pool, *charset_UTF8_name, 0/*no file=system*/)); - - - // Status registration, must be initialized before all registrants - cache_managers=NEW Cache_managers(pool); - - // SQL driver manager - cache_managers->put(*NEW String(pool, "sql"), - SQL_driver_manager=NEW SQL_Driver_manager(pool)); - -#ifdef DB2 - // DB driver manager - cache_managers->put(*NEW String(pool, "db"), - DB_manager=NEW DB_Manager(pool)); +#ifdef SYMBOLS_CACHING + // symbols cache + Symbols::init(); #endif #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. - */ + // 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 - //never added yet xmlLoadExtDtdDefaultValue |= XML_COMPLETE_ATTRS; + 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; - memset(xml_generic_error_infos, 0, sizeof(xml_generic_error_infos)); xmlSetGenericErrorFunc(0, xmlParserGenericErrorFunc); + xsltSetGenericErrorFunc(0, xmlParserGenericErrorFunc); + +// FILE *f=fopen("xslt.log", "wt"); +// xsltSetGenericDebugFunc(f/*stderr*/, 0); - // XSLT stylesheet manager - cache_managers->put(*NEW String(pool, "stylesheet"), - stylesheet_manager=NEW Stylesheet_manager(pool)); + pa_xml_io_init(); #endif } -#if defined(XML) && defined(_MSC_VER) -# define XML_LIBS "/parser3project/win32xml" -# pragma comment(lib, XML_LIBS "/glib/lib/libglib-1.3-11.lib") -# pragma comment(lib, XML_LIBS "/libxml2-2.4.12/win32/dsp/libxml2_so/libxml2.lib") -# pragma comment(lib, XML_LIBS "/libxslt-1.0.9/win32/dsp/libexslt_so/libexslt.lib") -# pragma comment(lib, XML_LIBS "/libxslt-1.0.9/win32/dsp/libxslt_a/libxslt.lib") -# ifdef _DEBUG -# pragma comment(lib, XML_LIBS "/gdome2-0.7.0/win32/dsp/Debug/libgdome.lib") -# else -# pragma comment(lib, XML_LIBS "/gdome2-0.7.0/win32/dsp/Release/libgdome.lib") -# endif +static bool is_dlinited=false; + +void pa_globals_done() { + delete cache_managers; + cache_managers=0; + + if(is_dlinited) + lt_dlexit(); + + pa_socks_done(); +} + +void pa_dlinit() { + if(!is_dlinited){ + if(lt_dlinit()) + throw Exception(0,0,"preparation for dynamic library loading failed, %s", lt_dlerror()); + is_dlinited=true; + } +} + +#ifdef _MSC_VER + +#define PREFIX "../../../../win32/" + +#ifdef _DEBUG +#define CONFIGURATION "Debug" +#else +#define CONFIGURATION "Release" +#endif + +#ifdef _WIN64 +#define PLATFORM_64 "x64/" +#define PLATFORM_32 "" +#else +#define PLATFORM_64 "" +#define PLATFORM_32 "win32/" #endif +#pragma comment(lib, PREFIX "pcre/" PLATFORM_64 CONFIGURATION "/pcre.lib") -#if defined(DB2) && defined(_MSC_VER) -# define LIBDB2_WIN32_BUILD "/parser3project/win32db/lib" -# ifdef _DEBUG -# pragma comment(lib, LIBDB2_WIN32_BUILD "/debug/libdb.lib") -# else -# pragma comment(lib, LIBDB2_WIN32_BUILD "/release/libdb.lib") -# endif +#ifndef PA_DEBUG_DISABLE_GC + +#pragma comment(lib, PREFIX "gc/" PLATFORM_64 CONFIGURATION "/gc.lib") + +#endif // PA_DEBUG_DISABLE_GC + + +#ifdef XML + +#define GNOME_LIBS PREFIX "gnome" + +#define LIB_XML PREFIX "gnome/libxml2-x.x.x/" PLATFORM_64 PLATFORM_32 CONFIGURATION "/lib/" +#define LIB_XSLT PREFIX "gnome/libxslt-x.x.x/" PLATFORM_64 PLATFORM_32 CONFIGURATION "/lib/" + +#ifdef XML_STATIC +#pragma comment(lib, LIB_XML "libxml2_a.lib") +#pragma comment(lib, LIB_XSLT "libxslt_a.lib") +#pragma comment(lib, LIB_XSLT "libexslt_a.lib") +#else +#pragma comment(lib, LIB_XML "libxml2.lib") +#pragma comment(lib, LIB_XSLT "libxslt.lib") +#pragma comment(lib, LIB_XSLT "libexslt.lib") +#endif + +#endif // XML + +// defines for VS2015 to link with gc/xml libs compiled in the previous VS versions +#if _MSC_VER >= 1900 +#pragma comment(lib,"legacy_stdio_definitions.lib") #endif + +#endif // _MSC_VER