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version 1.74, 2001/09/17 16:49:15 version 1.189, 2013/07/21 14:22:54
Line 1 Line 1
 /** @file  /** @file
         Parser: globals.          Parser: globals.
   
         Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)          Copyright (c) 2001-2012 Art. Lebedev Studio (http://www.artlebedev.com)
           Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
         Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)  
 */  */
 static const char *RCSId="$Id$";   
   
 #if _MSC_VER  #include "pa_config_includes.h"
 #       pragma warning(disable:4291)   // disable warning   
 //      "no matching operator delete found; memory will not be freed if initialization throws an exception  
 #endif  
   
 #include <util/PlatformUtils.hpp>  #ifdef XML
 #include <XalanTransformer/XalanTransformer.hpp>  #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 "pa_string.h"  #include "pa_string.h"
 #include "pa_hash.h"  #include "pa_sapi.h"
 #include "pa_sql_driver_manager.h"  #include "pa_threads.h"
 #include "pa_xslt_stylesheet_manager.h"  #include "pa_xml_io.h"
 #include "pa_dictionary.h"  #include "pa_common.h"
   
 String *user_html_name;  #include "pa_cache_managers.h"
 String *content_type_name;  
 String *body_name;  #include "ltdl.h"
 String *value_name;  #include "pcre.h"
 String *expires_name;  
 String *path_name;  volatile const char * IDENT_PA_GLOBALS_C="$Id$" IDENT_PA_GLOBALS_H IDENT_PA_SAPI_H;
 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 *empty_string;  
   
 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 *defaults_name;  
 String *ctype_name;  
 String *ctype_white_space_name;  
 String *ctype_digit_name;  
 String *ctype_hex_digit_name;  
 String *ctype_letter_name;  
 String *ctype_word_name;  
 String *ctype_lowercase_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 *hash_default_element_name;  // defines
   
 Hash *untaint_lang_name2enum;  //#define PA_DEBUG_XML_GC_MEMORY
   
 Dictionary *default_typo_dict;  //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
   
   // globals
   
 short hex_value[0x100];  short hex_value[0x100];
   
Line 107  static void setup_hex_value() { Line 70  static void setup_hex_value() {
         hex_value['f'] = 15;          hex_value['f'] = 15;
 }  }
   
 void pa_globals_init(Pool& pool) {  THREAD_LOCAL Request* thread_request=NULL;
         #undef NEW  
         #define NEW new(pool)  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;
   }
   
   
   #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;
           }
   };
   
   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 *)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
   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)
                   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) { 
   #ifdef PA_WORKAROUND_BUGGY_MALLOCATOMIC_IN_LIBXML_GC_MEMORY
           return check(pa_gc_malloc(size), "allocate XML composite memory (asked atomic)", size);
   #else
           return check(pa_gc_malloc_atomic(size), "allocate XML atomic memory", size);
   #endif
   }
   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* 
   #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) {
           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
   #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          // hex value
         setup_hex_value();          setup_hex_value();
   
         // names  #ifdef XML
         user_html_name=NEW String(pool, USER_HTML_NAME);          // initializing xml libs
         content_type_name=NEW String(pool, CONTENT_TYPE_NAME);  
         body_name=NEW String(pool, BODY_NAME);          /*
         value_name=NEW String(pool, VALUE_NAME);          * Register the EXSLT extensions and the test module
         expires_name=NEW String(pool, EXPIRES_NAME);          */
         path_name=NEW String(pool, PATH_NAME);          exsltRegisterAll();
         name_name=NEW String(pool, NAME_NAME);          xsltRegisterTestModule();
         size_name=NEW String(pool, SIZE_NAME);          xmlDefaultSAXHandlerInit();
         text_name=NEW String(pool, TEXT_NAME);          /*
           * disable CDATA from being built in the document tree
         exception_method_name=NEW String(pool, EXCEPTION_METHOD_NAME);          */
         post_process_method_name=NEW String(pool, POST_PROCESS_METHOD_NAME);          // never added yet  xmlDefaultSAXHandler.cdataBlock = NULL;
           
         content_disposition_name=NEW String(pool, CONTENT_DISPOSITION_NAME);          /*
         content_disposition_filename_name=NEW String(pool, CONTENT_DISPOSITION_FILENAME_NAME);           * Initialization function for the XML parser.
            * This is not reentrant. Call once before processing in case of
         unnamed_name=NEW String(pool, UNNAMED_NAME);           * use in multithreaded programs.
         empty_string=NEW String(pool);           */
           xmlInitParser();
         auto_method_name=NEW String(pool, AUTO_METHOD_NAME);  
         main_method_name=NEW String(pool, MAIN_METHOD_NAME);          // 1. this is needed for proper parsing of stylesheets
           // there were a situation where honest entity ruined innocent xpath compilation
         main_class_name=NEW String(pool, MAIN_CLASS_NAME);          // 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 
         result_var_name=NEW String(pool, RESULT_VAR_NAME);          // got [erroreosly] cut on first entity occurance
         match_var_name=NEW String(pool, MATCH_VAR_NAME);          // --
         string_pre_match_name=NEW String(pool, STRING_PRE_MATCH_NAME);          // that is why this is:
         string_match_name=NEW String(pool, STRING_MATCH_NAME);          xmlSubstituteEntitiesDefault(1);
         string_post_match_name=NEW String(pool, STRING_POST_MATCH_NAME);          
           // Bit in the loadsubset context field to tell to do ID/REFs lookups 
           xmlLoadExtDtdDefaultValue |= XML_DETECT_IDS;
         defaults_name=NEW String(pool, DEFAULTS_NAME);          // Bit in the loadsubset context field to tell to do complete the elements attributes lists 
         ctype_name=NEW String(pool, CTYPE_NAME);          // with the ones defaulted from the DTDs 
         ctype_white_space_name=NEW String(pool, CTYPE_WHITE_SPACE_NAME);          xmlLoadExtDtdDefaultValue |= XML_COMPLETE_ATTRS;
         ctype_digit_name=NEW String(pool, CTYPE_DIGIT_NAME);  
         ctype_hex_digit_name=NEW String(pool, CTYPE_HEX_DIGIT_NAME);          // validate each document after load/create (?)
         ctype_letter_name=NEW String(pool, CTYPE_LETTER_NAME);          //xmlDoValidityCheckingDefaultValue = 1;
         ctype_word_name=NEW String(pool, CTYPE_WORD_NAME);  
         ctype_lowercase_name=NEW String(pool, CTYPE_LOWERCASE_NAME);  //regretfully this not only replaces entities on parse, but also on generate    xmlSubstituteEntitiesDefault(1);
         mime_types_name=NEW String(pool, MIME_TYPES_NAME);          // never switched this on xmlIndentTreeOutput=1;
         vfile_mime_type_name=NEW String(pool, VFILE_MIME_TYPE_NAME);  
         origins_mode_name=NEW String(pool, ORIGINS_MODE_NAME);          xmlSetGenericErrorFunc(0, xmlParserGenericErrorFunc);
           xsltSetGenericErrorFunc(0, xmlParserGenericErrorFunc);
         class_path_name=NEW String(pool, CLASS_PATH_NAME);  //      FILE *f=fopen("y:\\xslt.log", "wt");
   //      xsltSetGenericDebugFunc(f/*stderr*/, 0);
         //^switch ^case  
         switch_data_name=NEW String(pool, SWITCH_DATA_NAME);          pa_xml_io_init();
         case_default_value=NEW String(pool, CASE_DEFAULT_VALUE);  #endif
   }
         // sql  
         sql_limit_name=NEW String(pool, SQL_LIMIT_NAME);  static bool is_dlinited=false;
         sql_offset_name=NEW String(pool, SQL_OFFSET_NAME);  
         sql_default_name=NEW String(pool, SQL_DEFAULT_NAME);  
   
         // hash  
         hash_default_element_name=NEW String(pool, HASH_DEFAULT_ELEMENT_NAME);  
   
   
         // hashes  
         untaint_lang_name2enum=NEW Hash(pool);  
         #define ULN(var, cstr, LANG) \  
                 String var(pool, cstr); \  
                 untaint_lang_name2enum->put(var, (int)String::UL_##LANG);  
         ULN(as_is, "as-is", AS_IS);  
         ULN(file_name, "file-spec", FILE_SPEC);  
         ULN(http_header, "http-header", HTTP_HEADER);  
         ULN(mail_header, "mail-header", MAIL_HEADER);  
         ULN(uri, "uri", URI);  
         ULN(table, "table", TABLE);  
         ULN(sql, "sql", SQL);  
         ULN(js, "js", JS);  
         ULN(xml, "xml", XML);  
         ULN(html, "html", HTML);  
         ULN(user_html, "user-html", USER_HTML);  
   
         // tables  
         Table *default_typo_table=NEW Table(pool, 0, 0);  
         #define DT_ROW(from, to) { \  
                         Array *row=NEW Array(pool); \  
                         *row+=NEW String(pool, from); \  
                         *row+=NEW String(pool, to); \  
                         *default_typo_table+=row; \  
                 }  
         DT_ROW("<", "&lt;");  
         DT_ROW(">", "&gt;");  
         DT_ROW("\"", "&quot;");  
         DT_ROW("&", "&amp;");  
         DT_ROW("\\n\\n", "<p>");  
         DT_ROW("\\n", "<br>");  
         default_typo_dict=NEW Dictionary(*default_typo_table);  
   
         // SQL driver manager  
         SQL_driver_manager=NEW SQL_Driver_manager(pool);  
   
         // Xerces & Xalan  
   
         // Use the static initializers to initialize the Xalan-C++ and Xerces-C++ platforms.   
         // You must initialize Xerces-C++ once per process  
         XMLPlatformUtils::Initialize();  
         XalanTransformer::initialize();  
   
         // XSLT stylesheet driver manager  void pa_globals_done() {
         XSLT_stylesheet_manager=NEW XSLT_Stylesheet_manager(pool);          delete cache_managers;  cache_managers=0;
           if(is_dlinited)
                   lt_dlexit();
 }  }
   
   void pa_dlinit() {
           if(!is_dlinited){
                   if(lt_dlinit())
                           throw Exception(0,0,"prepare to dynamic libary 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
   
   #define GNOME_LIBS "../../../../win32/gnome"
   
   #ifdef WITH_MAILRECEIVE
   #       pragma comment(lib, GNOME_LIBS "/glib/lib/libglib-1.3-11.lib")
   #endif
   
   #ifdef XML
   #       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
   
   #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
   
   #       endif
   #endif
   
   #endif
Removed from v.1.74  
changed lines
  Added in v.1.189

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