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Diff for /parser3/src/main/pa_globals.C between versions 1.3 and 1.194

version 1.3, 2001/03/14 16:47:33 version 1.194, 2015/10/26 01:21:58
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 /*  /** @file
         Parser          Parser: globals.
         Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)  
         Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)  
   
         $Id$          Copyright (c) 2001-2015 Art. Lebedev Studio (http://www.artlebedev.com)
           Author: Alexandr Petrosian <paf@design.ru> (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 "pa_globals.h"
 #include "_string.h"  #include "pa_string.h"
 #include "_double.h"  #include "pa_sapi.h"
 #include "_int.h"  #include "pa_threads.h"
 #include "_table.h"  #include "pa_xml_io.h"
 #include "_form.h"  #include "pa_common.h"
 #include "_env.h"  
   #include "pa_cache_managers.h"
 Service_funcs service_funcs;  
   #include "ltdl.h"
 String *exception_method_name;  #include "pcre.h"
   
 String *unnamed_name;  volatile const char * IDENT_PA_GLOBALS_C="$Id$" IDENT_PA_GLOBALS_H IDENT_PA_SAPI_H;
 String *empty_string;  
   // defines
 String *auto_method_name;  
 String *main_method_name;  //#define PA_DEBUG_XML_GC_MEMORY
   
 String *root_class_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
 String *main_class_name;  // // there is a problem with testcase, it's unstable. 
 String *env_class_name;  // // see paf@six/bug20040920/cgi-bin/t for it-showed-bug-on-20040920-day
 String *table_class_name;  // #define PA_WORKAROUND_BUGGY_FREE_IN_LIBXML_GC_MEMORY
 String *form_class_name;  // #define PA_WORKAROUND_BUGGY_MALLOCATOMIC_IN_LIBXML_GC_MEMORY
   
 Hash *untaint_lang_name2enum;  // globals
   
   short hex_value[0x100];
 void globals_init(Pool& pool) {  
         #define NEW_STRING(name, value)  name=new(pool) String(pool); name->APPEND_CONST(value)  static void setup_hex_value() {
         #define LOCAL_STRING(name, value)  String name(pool); name.APPEND_CONST(value)          memset(hex_value, 0, sizeof(hex_value));
           hex_value['0'] = 0;     
         // names          hex_value['1'] = 1;     
         NEW_STRING(exception_method_name, EXCEPTION_METHOD_NAME);          hex_value['2'] = 2;     
           hex_value['3'] = 3;     
         NEW_STRING(unnamed_name, UNNAMED_NAME);          hex_value['4'] = 4;     
         empty_string=new(pool) String(pool);           hex_value['5'] = 5;     
           hex_value['6'] = 6;     
         NEW_STRING(auto_method_name, AUTO_METHOD_NAME);          hex_value['7'] = 7;     
         NEW_STRING(main_method_name, MAIN_METHOD_NAME);          hex_value['8'] = 8;     
           hex_value['9'] = 9;
         NEW_STRING(root_class_name, ROOT_CLASS_NAME);          hex_value['A'] = 10;
         NEW_STRING(main_class_name, MAIN_CLASS_NAME);          hex_value['B'] = 11;
         NEW_STRING(table_class_name, TABLE_CLASS_NAME);          hex_value['C'] = 12;
         NEW_STRING(env_class_name, ENV_CLASS_NAME);               hex_value['D'] = 13;
         NEW_STRING(form_class_name, FORM_CLASS_NAME);             hex_value['E'] = 14;
           hex_value['F'] = 15;
         // hashes          hex_value['a'] = 10;
         untaint_lang_name2enum=new(pool) Hash(pool);          hex_value['b'] = 11;
         LOCAL_STRING(as_is, "as-is");            hex_value['c'] = 12;
         untaint_lang_name2enum->put(as_is, (int)String::Untaint_lang::AS_IS);          hex_value['d'] = 13;
         LOCAL_STRING(table, "table");          hex_value['e'] = 14;
         untaint_lang_name2enum->put(table, (int)String::Untaint_lang::TABLE);          hex_value['f'] = 15;
         LOCAL_STRING(sql, "sql");  }
         untaint_lang_name2enum->put(sql, (int)String::Untaint_lang::SQL);  
         LOCAL_STRING(js, "js");  THREAD_LOCAL Request* thread_request=NULL;
         untaint_lang_name2enum->put(js, (int)String::Untaint_lang::JS);  
         LOCAL_STRING(html, "html");  void pa_register_thread_request(Request& r) {
         untaint_lang_name2enum->put(html, (int)String::Untaint_lang::HTML);          thread_request=&r;
         LOCAL_STRING(html_typo, "html-typo");  }
         untaint_lang_name2enum->put(html_typo, (int)String::Untaint_lang::HTML_TYPO);  /// retrives request set by pa_set_request function, useful in contextless places [slow]
   Request& pa_thread_request() {
         // read-only stateless classes          return *thread_request;
         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();  #ifdef XML
   
         // read-only stateless base classes  class XML_Generic_error_info {
         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();  public:/*internal, actually*/
         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();          char buf[MAX_STRING*5];
           size_t used;
   public:
           XML_Generic_error_info() {
                   buf[used=0]=0;
           }
           const char* get() {
                   return used? buf: 0;
           }
   };
   
   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);
           p->used+=vsnprintf(p->buf+p->used, sizeof(p->buf)-p->used, msg, args);
           va_end(args);
   }
   
   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
   }
   
   #endif
   
   #ifdef XML
   
   static char *pa_GC_strdup(const char *s) {
           if(!s)
                   return 0;
   
           size_t size=strlen(s)+1;
           char *result=(char *)pa_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=pa_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=pa_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=pa_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);
           pa_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(pa_gc_malloc(size), "allocate XML compsite memory", size);
   }
   
   static void* pa_gc_malloc_atomic_nonull(size_t size) { 
           return check(pa_gc_malloc_atomic(size), "allocate XML atomic memory", size);
 }  }
   
   static void* pa_gc_realloc_nonull(void* ptr, size_t size) { 
           return check(pa_gc_realloc(ptr, size), "reallocate XML memory", size);
   }
   
   static void pa_gc_free_maybeignore(void* ptr) {
           pa_gc_free(ptr);
   }
   
   #endif
   #endif
   
   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_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();
   
   #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("y:\\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();
   }
   
   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
   
   #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"
   
   #ifdef _DEBUG
   #define LIB_XML GNOME_LIBS "/libxml2-x.x.x/win32/debug/lib/"
   #define LIB_XSLT GNOME_LIBS "/libxslt-x.x.x/win32/debug/lib/"
   #else
   #define LIB_XML GNOME_LIBS "/libxml2-x.x.x/win32/release/lib/"
   #define LIB_XSLT GNOME_LIBS "/libxslt-x.x.x/win32/release/lib/"
   #endif
   
   #ifdef LIBXML_STATIC
   #pragma comment(lib, LIB_XML "libxml2_a.lib")
   #else
   #pragma comment(lib, LIB_XML "libxml2.lib")
   #endif
   
   #ifdef LIBXSLT_STATIC
   #pragma comment(lib, LIB_XSLT "libxslt_a.lib")
   #else
   #pragma comment(lib, LIB_XSLT "libxslt.lib")
   #endif
   
   #ifdef LIBEXSLT_STATIC
   #pragma comment(lib, LIB_XSLT "libexslt_a.lib")
   #else
   #pragma comment(lib, LIB_XSLT "libexslt.lib")
   #endif
   
   #endif
   
   #endif
Removed from v.1.3  
changed lines
  Added in v.1.194

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