--- parser3/src/main/pa_globals.C 2001/04/03 07:02:43 1.38 +++ parser3/src/main/pa_globals.C 2003/07/24 11:31:23 1.157 @@ -1,76 +1,45 @@ /** @file Parser: globals. - Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) + Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) +*/ - Author: Alexander Petrosyan (http://design.ru/paf) +static const char* IDENT_GLOBALS_C="$Date: 2003/07/24 11:31:23 $"; - $Id: pa_globals.C,v 1.38 2001/04/03 07:02:43 paf Exp $ -*/ +#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 "pcre.h" #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" - -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 *unnamed_name; -String *empty_string; - -String *auto_method_name; -String *main_method_name; - -String *root_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 *limits_name; -String *post_max_size_name; - -String *defaults_name; -String *mime_types_name; -String *vfile_mime_type_name; +#include "pa_sapi.h" +#include "pa_threads.h" + -Hash *untaint_lang_name2enum; +// defines -Table *default_typo_table; +//#define PA_DEBUG_XML_GC_MEMORY + +// globals short hex_value[0x100]; +#ifdef XML +GdomeDOMImplementation *domimpl; +#endif + 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; @@ -95,131 +64,407 @@ static void setup_hex_value() { hex_value['f'] = 15; } -void pa_globals_init(Pool& pool) { - #undef NEW - #define NEW new(pool) +#ifdef XML - // hex value - setup_hex_value(); +const int MAX_CONCURRENT_XML_GENERIC_ERROR_THREADS=10; - // 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); - - 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); - - root_class_name=NEW String(pool, ROOT_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); - - - 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); - mime_types_name=NEW String(pool, MIME_TYPES_NAME); - vfile_mime_type_name=NEW String(pool, VFILE_MIME_TYPE_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); - { - // < -> < - { - Array *row=NEW Array(pool); - *row+=NEW String(pool, "<"); - *row+=NEW String(pool, "<"); - *default_typo_table+=row; - } - // > -> > - { - Array *row=NEW Array(pool); - *row+=NEW String(pool, ">"); - *row+=NEW String(pool, ">"); - *default_typo_table+=row; - } - // " -> " - { - Array *row=NEW Array(pool); - *row+=NEW String(pool, "\""); - *row+=NEW String(pool, """); - *default_typo_table+=row; - } - // & -> & - { - Array *row=NEW Array(pool); - *row+=NEW String(pool, "&"); - *row+=NEW String(pool, "&"); - *default_typo_table+=row; - } - // \n\n ->

- { - Array *row=NEW Array(pool); - *row+=NEW String(pool, "\\n\\n"); - *row+=NEW String(pool, "

"); - *default_typo_table+=row; - } - // \n ->
- { - Array *row=NEW Array(pool); - *row+=NEW String(pool, "\\n"); - *row+=NEW String(pool, "
"); - *default_typo_table+=row; +class XML_Generic_error_info { +public: + pa_thread_t thread_id; + char buf[MAX_STRING]; + size_t used; +public: + XML_Generic_error_info() { + reset(); + } + void reset() { + thread_id=0; + buf[used=0]=0; + } + const char* get_and_reset() { + char* result=new(PointerFreeGC) char[used+1]; + memcpy(result, buf, used+1); + reset(); + return result; + } +} xml_generic_error_infos[MAX_CONCURRENT_XML_GENERIC_ERROR_THREADS]; + +XML_Generic_error_info *xml_generic_error_info(pa_thread_t thread_id) { + for(int i=0; ithread_id==thread_id) + return p; + } + return 0; +} + +static void +xmlParserGenericErrorFunc(void *ctx, const char* msg, ...) { + //_asm int 3; + 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 one to appear + continue; } + + p->thread_id=thread_id; + + va_list args; + va_start(args, msg); + p->used+=vsnprintf(p->buf+p->used, sizeof(p->buf)-p->used, msg, args); + va_end(args); + + break; } +} + +bool xmlHaveGenericErrors() { + pa_thread_t thread_id=pa_get_thread_id(); + + SYNCHRONIZED; // find blocked + + return xml_generic_error_info(thread_id)!=0; +} + +const char* xmlGenericErrors() { + pa_thread_t thread_id=pa_get_thread_id(); + + SYNCHRONIZED; // find+free blocked - // 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))); + XML_Generic_error_info *p=xml_generic_error_info(thread_id); + if(!p) // no errors for our thread_id registered + return 0; + + return p->get_and_reset(); +} - // stateless base classes - initialize_form_base_class(pool, *(form_base_class=NEW VStateless_class(pool))); form_base_class->set_name(*form_class_name); +/** + * xmlFileMatchWithLocalhostEqDocumentRoot: + * filename: the URI for matching + * + * check if the URI matches an HTTP one + * + * Returns 1 if matches, 0 otherwise + */ +static int +xmlFileMatchLocalhost(const char* filename) { + if (!strncmp(filename, "http://localhost", 16)) + return(1); + return(0); } + + +/** + * xmlFileOpenHttpLocalhost : + * filename: the URI for matching + * + * http://localhost/abc -> $ENV{DOCUMENT_ROOT}/abc | ./abc + * + * input from FILE *, supports compressed input + * if filename is " " then the standard input is used + * + * Returns an I/O context or NULL in case of error + */ +static void * +xmlFileOpenLocalhost (const char* filename) { + //_asm int 3; + FILE *fd; + const char* documentRoot; + char path[1000]; + + path[0]=0; + strcat(path, (documentRoot=getenv("DOCUMENT_ROOT"))?documentRoot:"."); + strcat(path, &filename[16]); + +#ifdef WIN32 + fd = fopen(path, "rb"); +#else + fd = fopen(path, "r"); +#endif /* WIN32 */ + return((void *) fd); +} + +/** + * xmlFileRead: + * @context: the I/O context + * @buffer: where to drop data + * @len: number of bytes to write + * + * Read @len bytes to @buffer from the I/O channel. + * + * Returns the number of bytes written + */ +static int +pa_xmlFileRead (void * context, char * buffer, int len) { + return(fread(&buffer[0], 1, len, (FILE *) context)); +} + +/** + * xmlFileClose: + * @context: the I/O context + * + * Close an I/O channel + */ +static int +pa_xmlFileClose (void * context) { + return ( ( fclose((FILE *) context) == EOF ) ? -1 : 0 ); +} + +#endif + +void pa_globals_destroy(void *) { + try { +#ifdef XML + GdomeException exc; + gdome_di_unref (domimpl, &exc); +#endif + } catch(const Exception& e) { + SAPI::abort("pa_globals_destroy failed: %s", e.comment()); + } +} + + +#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); + memcpy(result, s, size); + return result; +} + +#ifdef PA_DEBUG_XML_GC_MEMORY +void *pa_look_for[]={(void*)0x8abe000,(void*)0x0,(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) + 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){ + void *p=pa_gc_malloc_atomic(size); + fprintf(stderr, "pa_gc_malloc_atomic_log(%d)=0x%p\n", size, p); +// 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_ignore(void *){} +static void pa_gc_free_log(void *p){ + fprintf(stderr, "pa_gc_free_log(0x%p)\n", p); +// if(pa_looked(p)) +// fprintf(stderr,"catched debug free(0x%p)\n", p); + pa_gc_free(p); +} +#endif +#endif + +void pa_CORD_oom_fn(void) { + SAPI::abort("out of memory (while expanding string)"); +} + +/** + @todo LIBXML_VERSION with xmlGcMemSetup will be 2.5.7 + @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, + /*xmlMallocFunc */pa_gc_malloc, + /*xmlMallocFunc */pa_gc_malloc_atomic, + /*xmlReallocFunc */pa_gc_realloc, + /*xmlStrdupFunc */pa_GC_strdup); +#endif + +#else + xmlMemSetup( + /*xmlFreeFunc */pa_gc_free, + /*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() { + // in various libraries + gc_substitute_memory_management_functions(); + + // hex value + setup_hex_value(); + +#ifdef XML + // initializing xml libs + + /* First get a DOMImplementation reference */ + domimpl = gdome_di_mkref (); + /* + * 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); + + // http://localhost/abc -> $ENV{DOCUMENT_ROOT}/abc | ./abc + xmlRegisterInputCallbacks( + xmlFileMatchLocalhost, xmlFileOpenLocalhost, + pa_xmlFileRead, pa_xmlFileClose); +#endif +} + +#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 "../../../../win32xml/win32/gnome" +# pragma comment(lib, GNOME_LIBS "/glib/lib/libglib-1.3-11.lib") +# ifdef _DEBUG + +# ifdef LIBXML_STATIC +# pragma comment(lib, GNOME_LIBS "/gnome-xml/win32/binaries-debug/libxml2_a.lib") +# else +# pragma comment(lib, GNOME_LIBS "/gnome-xml/win32/binaries-debug/libxml2.lib") +# endif + +# ifdef LIBXSLT_STATIC +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libxslt_DebugStatic/libxslt.lib") +# else +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libxslt_DebugDynamic/libxslt.lib") +# endif +# ifdef LIBEXSLT_STATIC +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libexslt_DebugStatic/libexslt.lib") +# else +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libexslt_DebugDynamic/libexslt.lib") +# endif + +# ifdef LIBGDOME_STATIC +# pragma comment(lib, GNOME_LIBS "/gdome2-x.x.x/win32/dsp/libgdome_DebugStatic/libgdome.lib") +# else +# pragma comment(lib, GNOME_LIBS "/gdome2-x.x.x/win32/dsp/libgdome_DebugDynamic/libgdome.lib") +# endif + +#else + +# ifdef LIBXML_STATIC +# pragma comment(lib, GNOME_LIBS "/gnome-xml/win32/binaries-release/libxml2_a.lib") +# else +# pragma comment(lib, GNOME_LIBS "/gnome-xml/win32/binaries-release/libxml2.lib") +# endif + +# ifdef LIBXSLT_STATIC +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libxslt_ReleaseStatic/libxslt.lib") +# else +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libxslt_ReleaseDynamic/libxslt.lib") +# endif +# ifdef LIBEXSLT_STATIC +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libexslt_ReleaseStatic/libexslt.lib") +# else +# pragma comment(lib, GNOME_LIBS "/libxslt-x.x.x/win32/dsp/libexslt_ReleaseDynamic/libexslt.lib") +# endif + +# ifdef LIBGDOME_STATIC +# pragma comment(lib, GNOME_LIBS "/gdome2-x.x.x/win32/dsp/libgdome_ReleaseStatic/libgdome.lib") +# else +# pragma comment(lib, GNOME_LIBS "/gdome2-x.x.x/win32/dsp/libgdome_ReleaseDynamic/libgdome.lib") +# endif + +# endif +#endif + +#endif