--- parser3/src/main/pa_globals.C	2001/04/06 10:32:20	1.45
+++ parser3/src/main/pa_globals.C	2015/05/30 22:55:29	1.193
@@ -1,88 +1,51 @@
 /** @file
 	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)
+#include "pa_config_includes.h"
 
-	$Id: pa_globals.C,v 1.45 2001/04/06 10:32:20 paf Exp $
-*/
+#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_string.h"
-#include "pa_hash.h"
-#include "pa_table.h"
-#include "_string.h"
-#include "_double.h"
-#include "_int.h"
-#include "_table.h"
-#include "_form.h"
-#include "_response.h"
-#include "_file.h"
-#include "_random.h"
-#include "pa_sql_driver_manager.h"
-
-String *html_typo_name;
-String *content_type_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 *empty_string;
-
-String *auto_method_name;
-String *main_method_name;
-
-String *op_class_name;
-String *main_class_name;
-String *env_class_name;
-String *table_class_name;
-String *file_class_name;
-String *form_class_name;
-String *request_class_name;
-String *response_class_name;
-String *cookie_class_name;
-String *random_class_name;
-
-String *result_var_name;
-String *string_pre_match_name;
-String *string_match_name;
-String *string_post_match_name;
-
-String *limits_name;
-String *post_max_size_name;
-
-String *defaults_name;
-String *locale_name;
-String *locale_ctype_name;
-String *mime_types_name;
-String *vfile_mime_type_name;
+#include "pa_sapi.h"
+#include "pa_threads.h"
+#include "pa_xml_io.h"
+#include "pa_common.h"
+
+#include "pa_cache_managers.h"
+
+#include "ltdl.h"
+#include "pcre.h"
+
+volatile const char * IDENT_PA_GLOBALS_C="$Id: pa_globals.C,v 1.193 2015/05/30 22:55:29 moko Exp $" IDENT_PA_GLOBALS_H IDENT_PA_SAPI_H;
 
-String *main_sql_name;
-String *main_sql_drivers_name;
+// defines
 
-Hash *untaint_lang_name2enum;
+//#define PA_DEBUG_XML_GC_MEMORY
 
-Table *default_typo_table;
+//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];
 
 static void setup_hex_value() {
-	int i;
-	for (i=0; (i < 0x100); i++) {
-		hex_value[i] = 0;
-	}
+	memset(hex_value, 0, sizeof(hex_value));
 	hex_value['0'] = 0;	
 	hex_value['1'] = 1;	
 	hex_value['2'] = 2;	
@@ -107,146 +70,291 @@ static void setup_hex_value() {
 	hex_value['f'] = 15;
 }
 
-/// @test problems with $t[^table:set{}] ^t.menu{^if(){}}  if not a field!
-void pa_globals_init(Pool& pool) {
-	#undef NEW
-	#define NEW new(pool)
+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;
+}
+
+
+#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 *)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();
 
-	// names
-	html_typo_name=NEW String(pool, HTML_TYPO_NAME);
-	content_type_name=NEW String(pool, CONTENT_TYPE_NAME);
-	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);
-	empty_string=NEW String(pool); 
-
-	auto_method_name=NEW String(pool, AUTO_METHOD_NAME);
-	main_method_name=NEW String(pool, MAIN_METHOD_NAME);
-
-	op_class_name=NEW String(pool, OP_CLASS_NAME);
-	main_class_name=NEW String(pool, MAIN_CLASS_NAME);
-	table_class_name=NEW String(pool, TABLE_CLASS_NAME);
-	file_class_name=NEW String(pool, FILE_CLASS_NAME);
-	env_class_name=NEW String(pool, ENV_CLASS_NAME);	
-	form_class_name=NEW String(pool, FORM_CLASS_NAME);	
-	request_class_name=NEW String(pool, REQUEST_CLASS_NAME);	
-	response_class_name=NEW String(pool, RESPONSE_CLASS_NAME);
-	cookie_class_name=NEW String(pool, COOKIE_CLASS_NAME);
-	random_class_name=NEW String(pool, RANDOM_CLASS_NAME);
-
-	result_var_name=NEW String(pool, RESULT_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);
-
-
-	limits_name=NEW String(pool, LIMITS_NAME);
-	post_max_size_name=NEW String(pool, POST_MAX_SIZE_NAME);
-
-	defaults_name=NEW String(pool, DEFAULTS_NAME);
-	locale_name=NEW String(pool, LOCALE_NAME);
-	locale_ctype_name=NEW String(pool, LOCALE_CTYPE_NAME);
-	mime_types_name=NEW String(pool, MIME_TYPES_NAME);
-	vfile_mime_type_name=NEW String(pool, VFILE_MIME_TYPE_NAME);
-
-	main_sql_name=NEW String(pool, MAIN_SQL_NAME);
-	main_sql_drivers_name=NEW String(pool, MAIN_SQL_DRIVERS_NAME);
-
-	// hashes
-	untaint_lang_name2enum=NEW Hash(pool);
-	String as_is(pool, "as-is");  
-	untaint_lang_name2enum->put(as_is, (int)String::UL_AS_IS);
-	String file_name(pool, "file-name");  
-	untaint_lang_name2enum->put(file_name, (int)String::UL_FILE_NAME);
-	String header(pool, "header");  
-	untaint_lang_name2enum->put(header, (int)String::UL_HEADER);
-	String uri(pool, "uri");  
-	untaint_lang_name2enum->put(uri, (int)String::UL_URI);
-	String table(pool, "table");
-	untaint_lang_name2enum->put(table, (int)String::UL_TABLE);
-	String sql(pool, "sql");
-	untaint_lang_name2enum->put(sql, (int)String::UL_SQL);
-	String js(pool, "js");
-	untaint_lang_name2enum->put(js, (int)String::UL_JS);
-	String html(pool, "html");
-	untaint_lang_name2enum->put(html, (int)String::UL_HTML);
-	String html_typo(pool, "html-typo");
-	untaint_lang_name2enum->put(html_typo, (int)String::UL_HTML_TYPO);
-
-	// tables
-	default_typo_table=NEW Table(pool, 0, 0);
-	{
-		// < -> &lt;
-		{
-			Array *row=NEW Array(pool);
-			*row+=NEW String(pool, "<");	
-			*row+=NEW String(pool, "&lt;");
-			*default_typo_table+=row;
-		}
-		// > -> &gt;
-		{
-			Array *row=NEW Array(pool);
-			*row+=NEW String(pool, ">");	
-			*row+=NEW String(pool, "&gt;");
-			*default_typo_table+=row;
-		}
-		// " -> &quot;
-		{
-			Array *row=NEW Array(pool);
-			*row+=NEW String(pool, "\"");	
-			*row+=NEW String(pool, "&quot;");
-			*default_typo_table+=row;
-		}
-		// & -> &amp;
-		{
-			Array *row=NEW Array(pool);
-			*row+=NEW String(pool, "&");	
-			*row+=NEW String(pool, "&amp;");
-			*default_typo_table+=row;
-		}
-		// \n\n -> <p>
-		{
-			Array *row=NEW Array(pool);
-			*row+=NEW String(pool, "\\n\\n");	
-			*row+=NEW String(pool, "<p>");
-			*default_typo_table+=row;
-		}
-		// \n -> <br>
-		{
-			Array *row=NEW Array(pool);
-			*row+=NEW String(pool, "\\n");	
-			*row+=NEW String(pool, "<br>");
-			*default_typo_table+=row;
-		}
-	}
+#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;
 
-	// stateless classes
-	initialize_string_class(pool, *(string_class=NEW VStateless_class(pool)));
-	initialize_double_class(pool, *(double_class=NEW VStateless_class(pool)));
-	initialize_int_class(pool, *(int_class=NEW VStateless_class(pool)));
-	initialize_table_class(pool, *(table_class=NEW VStateless_class(pool)));
-	initialize_file_class(pool, *(file_class=NEW VStateless_class(pool)));
-	initialize_response_class(pool, *(response_class=NEW VStateless_class(pool)));
-	initialize_random_class(pool, *(random_class=NEW VStateless_class(pool)));
+	xmlSetGenericErrorFunc(0, xmlParserGenericErrorFunc);
+	xsltSetGenericErrorFunc(0, xmlParserGenericErrorFunc);
 
-	// stateless base classes
-	initialize_form_base_class(pool, *(form_base_class=NEW VStateless_class(pool)));  form_base_class->set_name(*form_class_name);
+//	FILE *f=fopen("y:\\xslt.log", "wt");
+//	xsltSetGenericDebugFunc(f/*stderr*/, 0);
 
-	// SQL_Driver_manager
- 	SQL_driver_manager=NEW SQL_Driver_manager(pool);
+	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