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Diff for /parser3/src/main/pa_globals.C between versions 1.63 and 1.213

version 1.63, 2001/07/18 10:06:04 version 1.213, 2023/09/26 20:49:10
Line 1 Line 1
 /** @file  /** @file
         Parser: globals.          Parser: globals.
   
         Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)          Copyright (c) 2001-2023 Art. Lebedev Studio (http://www.artlebedev.com)
           Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>
         Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)  
 */  */
 static const char *RCSId="$Id$";   
   #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 "pa_string.h"  #include "pa_socks.h"
 #include "pa_hash.h"  #include "pa_sapi.h"
 #include "pa_sql_driver_manager.h"  #include "pa_xml_io.h"
   #include "pa_common.h"
 String *user_html_name;  #include "pa_symbols.h"
 String *content_type_name;  
 String *body_name;  #include "pa_cache_managers.h"
 String *value_name;  
 String *expires_name;  #include "ltdl.h"
 String *path_name;  #include "pcre.h"
 String *name_name;  
 String *size_name;  volatile const char * IDENT_PA_GLOBALS_C="$Id$" IDENT_PA_GLOBALS_H IDENT_PA_SAPI_H;
 String *text_name;  
   // defines
 String *exception_method_name;  
 String *post_process_method_name;  //#define PA_DEBUG_XML_GC_MEMORY
   
 String *content_disposition_name;  // globals
 String *content_disposition_filename_name;  
   short hex_value[0x100] = {
 String *unnamed_name;            0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
 String *empty_string;            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,
 String *auto_method_name;            0,  1,  2,  3,  4,  5,  6,  7,  8,  9,  0,  0,  0,  0,  0,  0,
 String *main_method_name;            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,
 String *main_class_name;            0, 10, 11, 12, 13, 14, 15,  0,  0,  0,  0,  0,  0,  0,  0,  0,
   };
 String *result_var_name;  
 String *string_pre_match_name;  THREAD_LOCAL Request* thread_request=NULL; // every TLS should be referenced elsewhere, or GC will collect it
 String *string_match_name;  
 String *string_post_match_name;  void pa_register_thread_request(Request& r) {
           thread_request=&r;
 String *defaults_name;  }
 String *ctype_name;  
 String *ctype_white_space_name;  /// retrives request set by pa_set_request function, useful in contextless places [slow]
 String *ctype_digit_name;  Request& pa_thread_request() {
 String *ctype_hex_digit_name;          if(!thread_request)
 String *ctype_letter_name;                  throw Exception(0, 0, "request is not initialized");
 String *ctype_word_name;          return *thread_request;
 String *ctype_lowercase_name;  }
 String *mime_types_name;  
 String *vfile_mime_type_name;  
 String *origins_mode_name;  #ifdef XML
   
 Hash *untaint_lang_name2enum;  class XML_Generic_error_info {
   public:/*internal, actually*/
 Table *default_typo_table;          char buf[MAX_STRING*5];
           size_t used;
 short hex_value[0x100];  public:
           XML_Generic_error_info() {
 static void setup_hex_value() {                  buf[used=0]=0;
         int i;          }
         for (i=0; (i < 0x100); i++) {          const char* get() {
                 hex_value[i] = 0;                  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();
         }          }
         hex_value['0'] = 0;       
         hex_value['1'] = 1;               return 0; // no errors for our thread_id registered
         hex_value['2'] = 2;       }
         hex_value['3'] = 3;       
         hex_value['4'] = 4;       #endif // XML
         hex_value['5'] = 5;       
         hex_value['6'] = 6;       #ifdef XML
         hex_value['7'] = 7;       
         hex_value['8'] = 8;       static char *pa_GC_strdup(const char *s) {
         hex_value['9'] = 9;          if(!s)
         hex_value['A'] = 10;                  return 0;
         hex_value['B'] = 11;  
         hex_value['C'] = 12;          size_t size=strlen(s)+1;
         hex_value['D'] = 13;          char *result=(char *)GC_MALLOC_ATOMIC(size);
         hex_value['E'] = 14;  
         hex_value['F'] = 15;          if(!result)
         hex_value['a'] = 10;                  pa_fail_alloc("duplicate XML string",size);
         hex_value['b'] = 11;  
         hex_value['c'] = 12;          memcpy(result, s, size);
         hex_value['d'] = 13;  #ifdef PA_DEBUG_XML_GC_MEMORY
         hex_value['e'] = 14;          fprintf(stderr, "pa_GC_strdup(%p=%s, length=%d)=0x%p\n", s, s, size, result);
         hex_value['f'] = 15;  #endif
 }          return result;
   }
 void pa_globals_init(Pool& pool) {  
         #undef NEW  #ifdef PA_DEBUG_XML_GC_MEMORY
         #define NEW new(pool)  
   static void* pa_gc_malloc_log(size_t size){
         // hex value          void *p=GC_MALLOC(size);
         setup_hex_value();          fprintf(stderr, "pa_gc_malloc_log(%d)=0x%p\n", size, p);
           return p;
         // names          
         user_html_name=NEW String(pool, USER_HTML_NAME);  }
         content_type_name=NEW String(pool, CONTENT_TYPE_NAME);  
         body_name=NEW String(pool, BODY_NAME);  static void* pa_gc_malloc_atomic_log(size_t size){
         value_name=NEW String(pool, VALUE_NAME);          void *p=GC_MALLOC_ATOMIC(size);
         expires_name=NEW String(pool, EXPIRES_NAME);          fprintf(stderr, "pa_gc_malloc_atomic_log(%d)=0x%p\n", size, p);
         path_name=NEW String(pool, PATH_NAME);          return p;
         name_name=NEW String(pool, NAME_NAME);  }
         size_name=NEW String(pool, SIZE_NAME);  
         text_name=NEW String(pool, TEXT_NAME);  static void* pa_gc_realloc_log(void *ptr, size_t size){
           void *p=GC_REALLOC(ptr, size);
         exception_method_name=NEW String(pool, EXCEPTION_METHOD_NAME);          fprintf(stderr, "pa_gc_realloc_log(0x%p, %d)=0x%p\n", ptr, size, p);
         post_process_method_name=NEW String(pool, POST_PROCESS_METHOD_NAME);          return p;
   }
         content_disposition_name=NEW String(pool, CONTENT_DISPOSITION_NAME);  
         content_disposition_filename_name=NEW String(pool, CONTENT_DISPOSITION_FILENAME_NAME);  static void pa_gc_free_log(void *p){
           fprintf(stderr, "pa_gc_free_log(0x%p)\n", p);
         unnamed_name=NEW String(pool, UNNAMED_NAME);          GC_FREE(p);
         empty_string=NEW String(pool);   }
   
         auto_method_name=NEW String(pool, AUTO_METHOD_NAME);  #else
         main_method_name=NEW String(pool, MAIN_METHOD_NAME);  
   inline void *check(void *result, const char *where, size_t size) {
         main_class_name=NEW String(pool, MAIN_CLASS_NAME);          if(!result)
                   pa_fail_alloc(where, size);
         result_var_name=NEW String(pool, RESULT_VAR_NAME);          return result;
         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);  static void* pa_gc_malloc_nonull(size_t size) { 
           return check(GC_MALLOC(size), "allocate XML compsite memory", size);
   }
         defaults_name=NEW String(pool, DEFAULTS_NAME);  
         ctype_name=NEW String(pool, CTYPE_NAME);  static void* pa_gc_malloc_atomic_nonull(size_t size) { 
         ctype_white_space_name=NEW String(pool, CTYPE_WHITE_SPACE_NAME);          return check(GC_MALLOC_ATOMIC(size), "allocate XML atomic memory", size);
         ctype_digit_name=NEW String(pool, CTYPE_DIGIT_NAME);  }
         ctype_hex_digit_name=NEW String(pool, CTYPE_HEX_DIGIT_NAME);  
         ctype_letter_name=NEW String(pool, CTYPE_LETTER_NAME);  static void* pa_gc_realloc_nonull(void* ptr, size_t size) { 
         ctype_word_name=NEW String(pool, CTYPE_WORD_NAME);          return check(GC_REALLOC(ptr, size), "reallocate XML memory", size);
         ctype_lowercase_name=NEW String(pool, CTYPE_LOWERCASE_NAME);  }
         mime_types_name=NEW String(pool, MIME_TYPES_NAME);  
         vfile_mime_type_name=NEW String(pool, VFILE_MIME_TYPE_NAME);  static void pa_gc_free_maybeignore(void* ptr) {
         origins_mode_name=NEW String(pool, ORIGINS_MODE_NAME);          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() {
   
   #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();
   
           // 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;
                   
         // hashes          // Initialization function for the XML parser. This is not reentrant. 
         untaint_lang_name2enum=NEW Hash(pool);          // Call once before processing in case of use in multithreaded programs.
         #define ULN(var, cstr, LANG) \          xmlInitParser();
                 String var(pool, cstr); \  
                 untaint_lang_name2enum->put(var, (int)String::UL_##LANG);          // 1. this is needed for proper parsing of stylesheets
         ULN(as_is, "as-is", AS_IS);          // there were a situation where honest entity ruined innocent xpath compilation
         ULN(file_name, "file-name", FILE_NAME);          // doc says "you sould turn it on on stylesheet load" without deepening into details
         ULN(http_header, "http-header", HTTP_HEADER);          // 2. when dom tree with entites goes under transform text nodes 
         ULN(mail_header, "mail-header", MAIL_HEADER);          // got [erroreosly] cut on first entity occurance
         ULN(uri, "uri", URI);          // --
         ULN(table, "table", TABLE);          // that is why this is:
         ULN(sql, "sql", SQL);          xmlSubstituteEntitiesDefault(1);
         ULN(js, "js", JS);          
         ULN(html, "html", HTML);          // Bit in the loadsubset context field to tell to do ID/REFs lookups 
         ULN(user_html, "user-html", USER_HTML);          xmlLoadExtDtdDefaultValue |= XML_DETECT_IDS;
           // Bit in the loadsubset context field to tell to do complete the elements attributes lists 
         // tables          // with the ones defaulted from the DTDs 
         default_typo_table=NEW Table(pool, 0, 0);          xmlLoadExtDtdDefaultValue |= XML_COMPLETE_ATTRS;
         #define DT_ROW(from, to) { \  
                         Array *row=NEW Array(pool); \          // validate each document after load/create (?)
                         *row+=NEW String(pool, from); \          // xmlDoValidityCheckingDefaultValue = 1;
                         *row+=NEW String(pool, to); \  
                         *default_typo_table+=row; \          // regretfully this not only replaces entities on parse, but also on generate   xmlSubstituteEntitiesDefault(1);
                 }          // never switched this on xmlIndentTreeOutput=1;
         DT_ROW("<", "&lt;");  
         DT_ROW(">", "&gt;");          xmlSetGenericErrorFunc(0, xmlParserGenericErrorFunc);
         DT_ROW("\"", "&quot;");          xsltSetGenericErrorFunc(0, xmlParserGenericErrorFunc);
         DT_ROW("&", "&amp;");  
         DT_ROW("\\n\\n", "<p>");  //      FILE *f=fopen("xslt.log", "wt");
         DT_ROW("\\n", "<br>");  //      xsltSetGenericDebugFunc(f/*stderr*/, 0);
   
         // SQL_Driver_manager          pa_xml_io_init();
         SQL_driver_manager=NEW SQL_Driver_manager(pool);  #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")
   #endif
   
   #endif // _MSC_VER
Removed from v.1.63  
changed lines
  Added in v.1.213

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