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version 1.102, 2002/01/21 13:04:03 version 1.202, 2019/12/05 22:39:15
Line 1 Line 1
 /** @file  /** @file
         Parser: globals.          Parser: globals.
   
         Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)          Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com)
         Author: Alexander Petrosyan <paf@design.ru> (http://paf.design.ru)          Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
   
         $Id$  
 */  */
   
 #include "pa_config_includes.h"  #include "pa_config_includes.h"
   
 #ifdef XML  #ifdef XML
 //#include "libxml/parser.h"  #include "libxml/xmlversion.h"
 //#include "libxslt/xslt.h"  
 //#include "libxslt/libxslt.h"  
 #include "libxslt/extensions.h"  #include "libxslt/extensions.h"
 #include "libxslt/xsltutils.h"  #include "libxslt/xsltutils.h"
   extern "C" {
 #include "libexslt/exslt.h"  #include "libexslt/exslt.h"
   }
 #endif  #endif
   
 #include "pa_globals.h"  #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_sapi.h"
 #include "pa_cache_managers.h"  
 #include "pa_charsets.h"  
 #include "pa_charset.h"  
 #include "pa_threads.h"  #include "pa_threads.h"
   #include "pa_xml_io.h"
   #include "pa_common.h"
   #include "pa_symbols.h"
   
 #ifdef DB2  #include "pa_cache_managers.h"
 #include "pa_db_manager.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;  #include "ltdl.h"
   #include "pcre.h"
   
 String *hash_default_element_name;  volatile const char * IDENT_PA_GLOBALS_C="$Id$" IDENT_PA_GLOBALS_H IDENT_PA_SAPI_H;
   
 Hash *untaint_lang_name2enum;  // defines
   
 GdomeDOMImplementation *domimpl;  //#define PA_DEBUG_XML_GC_MEMORY
   
 Charset *utf8_charset;  // globals
   
 short hex_value[0x100];  short hex_value[0x100]={0};
   
 static void setup_hex_value() {  static void setup_hex_value() {
         memset(hex_value, 0, sizeof(hex_value));          hex_value['0'] = 0;
         hex_value['0'] = 0;               hex_value['1'] = 1;
         hex_value['1'] = 1;               hex_value['2'] = 2;
         hex_value['2'] = 2;               hex_value['3'] = 3;
         hex_value['3'] = 3;               hex_value['4'] = 4;
         hex_value['4'] = 4;               hex_value['5'] = 5;
         hex_value['5'] = 5;               hex_value['6'] = 6;
         hex_value['6'] = 6;               hex_value['7'] = 7;
         hex_value['7'] = 7;               hex_value['8'] = 8;
         hex_value['8'] = 8;       
         hex_value['9'] = 9;          hex_value['9'] = 9;
         hex_value['A'] = 10;          hex_value['A'] = 10;
         hex_value['B'] = 11;          hex_value['B'] = 11;
Line 115  static void setup_hex_value() { Line 63  static void setup_hex_value() {
         hex_value['f'] = 15;          hex_value['f'] = 15;
 }  }
   
 #ifdef XML  THREAD_LOCAL Request* thread_request=NULL;
   
 const int MAX_CONCURRENT_XML_GENERIC_ERROR_THREADS=10;  
   
 struct XML_Generic_error_info {  void pa_register_thread_request(Request& r) {
         pa_thread_t thread_id;          thread_request=&r;
         char *message;  }
 } xml_generic_error_infos[MAX_CONCURRENT_XML_GENERIC_ERROR_THREADS];  /// retrives request set by pa_set_request function, useful in contextless places [slow]
   Request& pa_thread_request() {
 XML_Generic_error_info *xml_generic_error_info(pa_thread_t thread_id) {          return *thread_request;
         for(int i=0; i<MAX_CONCURRENT_XML_GENERIC_ERROR_THREADS; i++) {  
                 XML_Generic_error_info *p=xml_generic_error_infos+i;  
                 if(p->thread_id==thread_id)  
                         return p;  
         }  
         return 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;  
                 }  
   
                 p->thread_id=thread_id;  
                 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);  
                   
                 va_list args;  
                 va_start(args, msg);  
                 vsnprintf(p->message+offset, MAX_STRING, msg, args);  
                 va_end(args);  
   
                 break;  #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() {  bool xmlHaveGenericErrors() {
     pa_thread_t thread_id=pa_get_thread_id();          return xml_generic_error_info!=0;
   }
   
         SYNCHRONIZED;  // find blocked  const char* xmlGenericErrors() {
           if(XML_Generic_error_info *p=xml_generic_error_info) {
                   xml_generic_error_info=0;
                   return p->get();
           }
   
         return xml_generic_error_info(thread_id)!=0;          return 0; // no errors for our thread_id registered
 }  }
   
 const char *xmlGenericErrors() {  #endif // XML
     pa_thread_t thread_id=pa_get_thread_id();  
   
         SYNCHRONIZED;  // find+free blocked  #ifdef XML
   
         XML_Generic_error_info *p=xml_generic_error_info(thread_id);  static char *pa_GC_strdup(const char *s) {
         if(!p) // no errors for our thread_id registered          if(!s)
                 return 0;                  return 0;
   
         const char *result=p->message;          size_t size=strlen(s)+1;
           char *result=(char *)GC_MALLOC_ATOMIC(size);
   
         // free slot up           if(!result)
         memset(p, 0, sizeof(*p));                  pa_fail_alloc("duplicate XML string",size);
   
         // it is up to caller to free it          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;          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
   
 void pa_globals_destroy(void *) {  #endif // XML
         try {  
   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  #ifdef XML
                 GdomeException exc;          // asking to use GC memory
                 gdome_di_unref (domimpl, &exc);  #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
                 if(cache_managers)  
                         cache_managers->~Cache_managers();  
   
                 charsets->~Charsets();  #endif
                   
         } catch(const Exception& e) {          // pcre
                 SAPI::die("pa_globals_destroy failed: %s", e.comment());          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() {
           // global variables 
           cache_managers=new Cache_managers;
   
         #undef NEW          // in various libraries
         #define NEW new(pool)          gc_substitute_memory_management_functions();
   
         // hex value          // hex value
         setup_hex_value();          setup_hex_value();
   
         // names  #ifdef SYMBOLS_CACHING
         content_type_name=NEW String(pool, CONTENT_TYPE_NAME);          // symbols cache
         charset_name=NEW String(pool, CHARSET_NAME);          Symbols::init();
         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));  
 #endif  #endif
   
 #ifdef XML  #ifdef XML
         // initializing xml libs          // initializing xml libs
   
         /* First I get a DOMImplementation reference */          // Register the EXSLT extensions and the test module
         domimpl = gdome_di_mkref ();          exsltRegisterAll();
     /*          xsltRegisterTestModule();
      * Register the EXSLT extensions and the test module          xmlDefaultSAXHandlerInit();
      */  
     exsltRegisterAll();          // disable CDATA from being built in the document tree
     xsltRegisterTestModule();          // never added yet  xmlDefaultSAXHandler.cdataBlock = NULL;
     xmlDefaultSAXHandlerInit();          
     /*          // Initialization function for the XML parser. This is not reentrant. 
      * disable CDATA from being built in the document tree          // Call once before processing in case of use in multithreaded programs.
      */  
     // 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();          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           // Bit in the loadsubset context field to tell to do ID/REFs lookups 
         xmlLoadExtDtdDefaultValue |= XML_DETECT_IDS;          xmlLoadExtDtdDefaultValue |= XML_DETECT_IDS;
         // Bit in the loadsubset context field to tell to do complete the elements attributes lists           // Bit in the loadsubset context field to tell to do complete the elements attributes lists 
         // with the ones defaulted from the DTDs           // 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);          xmlSetGenericErrorFunc(0, xmlParserGenericErrorFunc);
         xsltSetGenericErrorFunc(0, xmlParserGenericErrorFunc);          xsltSetGenericErrorFunc(0, xmlParserGenericErrorFunc);
   
         // XSLT stylesheet manager  //      FILE *f=fopen("xslt.log", "wt");
         cache_managers->put(*NEW String(pool, "stylesheet"),   //      xsltSetGenericDebugFunc(f/*stderr*/, 0);
                 stylesheet_manager=NEW Stylesheet_manager(pool));  
           pa_xml_io_init();
 #endif  #endif
 }  }
   
 #if defined(XML) && defined(_MSC_VER)  static bool is_dlinited=false;
 #       define XML_LIBS "/parser3project/win32xml"  
 #       pragma comment(lib, XML_LIBS "/glib/lib/libglib-1.3-11.lib")  void pa_globals_done() {
 #       pragma comment(lib, XML_LIBS "/libxml2-2.4.12/win32/dsp/libxml2_so/libxml2.lib")          delete cache_managers;
 #       pragma comment(lib, XML_LIBS "/libxslt-1.0.9/win32/dsp/libexslt_so/libexslt.lib")          cache_managers=0;
 #       pragma comment(lib, XML_LIBS "/libxslt-1.0.9/win32/dsp/libxslt_a/libxslt.lib")  
 #       ifdef _DEBUG          if(is_dlinited)
 #               pragma comment(lib, XML_LIBS "/gdome2-0.7.0/win32/dsp/Debug/libgdome.lib")                  lt_dlexit();
 #       else  }
 #               pragma comment(lib, XML_LIBS "/gdome2-0.7.0/win32/dsp/Release/libgdome.lib")  
 #       endif  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  #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
   
 #if defined(DB2) && defined(_MSC_VER)  #pragma comment(lib, PREFIX "gc/" PLATFORM_64 CONFIGURATION "/gc.lib")
 #       define LIBDB2_WIN32_BUILD "/parser3project/win32db/lib"  
 #       ifdef _DEBUG  #endif // PA_DEBUG_DISABLE_GC
 #               pragma comment(lib, LIBDB2_WIN32_BUILD "/debug/libdb.lib")  
 #       else  
 #               pragma comment(lib, LIBDB2_WIN32_BUILD "/release/libdb.lib")  #ifdef XML
 #       endif  
   #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
   
   #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
Removed from v.1.102  
changed lines
  Added in v.1.202

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