--- parser3/src/main/pa_globals.C 2001/03/18 17:18:36 1.13 +++ parser3/src/main/pa_globals.C 2019/12/25 22:13:51 1.204 @@ -1,142 +1,351 @@ -/* - Parser - Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) - Author: Alexander Petrosyan (http://design.ru/paf) +/** @file + Parser: globals. - $Id: pa_globals.C,v 1.13 2001/03/18 17:18:36 paf Exp $ + Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) */ +#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 "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 "pa_socks.h" +#include "pa_sapi.h" +#include "pa_threads.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" -Service_funcs service_funcs; +volatile const char * IDENT_PA_GLOBALS_C="$Id: pa_globals.C,v 1.204 2019/12/25 22:13:51 moko Exp $" IDENT_PA_GLOBALS_H IDENT_PA_SAPI_H; -String *content_type_name; -String *body_name; -String *value_name; +// defines -String *exception_method_name; +//#define PA_DEBUG_XML_GC_MEMORY -String *unnamed_name; -String *empty_string; +// globals -String *auto_method_name; -String *main_method_name; +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, +}; -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; +THREAD_LOCAL Request* thread_request=NULL; + +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() { + return *thread_request; +} -String *result_var_name; -String *limits_name; -String *post_max_size_name; +#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; + } +}; -String *defaults_name; +THREAD_LOCAL XML_Generic_error_info* xml_generic_error_info = NULL; -Hash *untaint_lang_name2enum; +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); + p->used+=vsnprintf(p->buf+p->used, sizeof(p->buf)-p->used, msg, args); + va_end(args); +} -short hex_value[0x100]; +bool xmlHaveGenericErrors() { + return xml_generic_error_info!=0; +} -static void setup_hex_value() { - int i; - for (i=0; (i < 0x100); i++) { - hex_value[i] = 0; +const char* xmlGenericErrors() { + if(XML_Generic_error_info *p=xml_generic_error_info) { + xml_generic_error_info=0; + return p->get(); } - 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; -} - -void globals_init(Pool& pool) { - // 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); - - 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); - - 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 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(); + + return 0; // no errors for our thread_id registered +} + +#endif // XML + +#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) + 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); } + +#else + +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 + +#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 + // 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 + +#endif + + // pcre + pcre_malloc=pa_malloc; + pcre_free=pa_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() { + // init socks + pa_socks_init(); + + // global variables + cache_managers=new Cache_managers; + + // in various libraries + gc_substitute_memory_management_functions(); + +#ifdef SYMBOLS_CACHING + // symbols cache + Symbols::init(); +#endif + +#ifdef XML + // initializing xml libs + + // 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("xslt.log", "wt"); +// xsltSetGenericDebugFunc(f/*stderr*/, 0); + + pa_xml_io_init(); +#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") + +#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") +extern "C" { FILE _iob[3] = { *stdin, *stdout, *stderr }; } +#endif + +#endif // _MSC_VER