--- parser3/src/targets/cgi/parser3.C 2003/07/24 11:31:25 1.218 +++ parser3/src/targets/cgi/parser3.C 2004/07/30 10:55:22 1.232 @@ -1,11 +1,11 @@ /** @file Parser: scripting and CGI main. - Copyright(c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com) + Copyright(c) 2001-2004 ArtLebedev Group (http://www.artlebedev.com) Author: Alexandr Petrosian (http://paf.design.ru) */ -static const char* IDENT_PARSER3_C="$Date: 2003/07/24 11:31:25 $"; +static const char * const IDENT_PARSER3_C="$Date: 2004/07/30 10:55:22 $"; #include "pa_config_includes.h" @@ -20,8 +20,6 @@ static const char* IDENT_PARSER3_C="$Dat #include "pa_socks.h" #include "pa_version.h" - - #ifdef WIN32 # include # include "getopt.h" @@ -29,12 +27,19 @@ static const char* IDENT_PARSER3_C="$Dat # include #endif +// defines + +#if _MSC_VER && !defined(_DEBUG) +# define PA_SUPPRESS_SYSTEM_EXCEPTION +#endif + //#define DEBUG_MAILRECEIVE "mailreceive.eml" // consts #define REDIRECT_PREFIX "REDIRECT_" #define PARSER_CONFIG_ENV_NAME "CGI_PARSER_CONFIG" +#define PARSER_LOG_ENV_NAME "CGI_PARSER_LOG" /// IIS refuses to read bigger chunks const size_t READ_POST_CHUNK_SIZE=0x400*0x400; // 1M @@ -59,7 +64,15 @@ static void log(const char* fmt, va_list bool opened=false; FILE *f=0; - if(config_filespec_cstr) { + const char* log_by_env=getenv(PARSER_LOG_ENV_NAME); + if(!log_by_env) + log_by_env=getenv(REDIRECT_PREFIX PARSER_LOG_ENV_NAME); + if(log_by_env) { + f=fopen(log_by_env, "at"); + opened=f!=0; + } + + if(!opened && config_filespec_cstr) { char beside_config_path[MAX_STRING]; strncpy(beside_config_path, config_filespec_cstr, MAX_STRING-1); beside_config_path[MAX_STRING-1]=0; if(!( @@ -214,8 +227,8 @@ void SAPI::send_header(SAPI_Info& ) { } } -void SAPI::send_body(SAPI_Info& , const void *buf, size_t size) { - stdout_write(buf, size); +size_t SAPI::send_body(SAPI_Info& , const void *buf, size_t size) { + return stdout_write(buf, size); } // @@ -241,12 +254,11 @@ static void full_file_spec(const char* f static void log_signal(const char* signal_name) { if(request_info) - SAPI::log(SAPI_info, "%s received while %s. uri=%s, method=%s, qs=%s, cl=%u", + SAPI::log(SAPI_info, "%s received while %s. uri=%s, method=%s, cl=%u", signal_name, request?"executing code":"reading data", request_info->uri, request_info->method, - request_info->query_string, request_info->content_length); else SAPI::log(SAPI_info, "%s received before or after processing request", @@ -268,6 +280,49 @@ static void SIGPIPE_handler(int /*sig*/) } #endif +#ifdef WIN32 +const char* maybe_reconstruct_IIS_status_in_qs(const char* original) +{ + // 404;http://servername/page[?param=value...] + // ';' should be urlencoded by HTTP standard, so we shouldn't get it from browser + // and can consider that as an indication that this is IIS way to report errors + + if(original + && isdigit((unsigned char)original[0]) + && isdigit((unsigned char)original[1]) + && isdigit((unsigned char)original[2]) + && original[3]==';') + { + size_t original_len=strlen(original); + char* reconstructed=new(PointerFreeGC) char[original_len + +12/*IIS-STATUS=&*/ + +14/*IIS-DOCUMENT=&*/ + +1]; + char* cur=reconstructed; + memcpy(cur, "IIS-STATUS=", 11); cur+=11; + memcpy(cur, original, 3); cur+=3; + *cur++='&'; + + const char* qmark_at=strchr(original, '?'); + memcpy(cur, "IIS-DOCUMENT=", 13); cur+=13; + { + size_t value_len=(qmark_at? qmark_at-original: original_len)-4; + memcpy(cur, original+4, value_len); cur+=value_len; + } + + if(qmark_at) { + *cur++='&'; + strcpy(cur, qmark_at+1/*skip ? itself*/); + } else + *cur=0; + + return reconstructed; + } + + return original; +} +#endif + /** main workhorse @@ -277,10 +332,11 @@ main workhorse wich is tested but seems slow. */ static void real_parser_handler(const char* filespec_to_process, - const char* request_method, bool header_only) { + const char* request_method, bool header_only) +{ // init socks - pa_init_socks(); - + pa_socks_init(); + // init global variables pa_globals_init(); @@ -308,7 +364,11 @@ static void real_parser_handler(const ch } request_info.path_translated=filespec_to_process; request_info.method=request_method ? request_method : "GET"; - const char* query_string=getenv("QUERY_STRING"); + const char* query_string= +#ifdef WIN32 + maybe_reconstruct_IIS_status_in_qs +#endif + (getenv("QUERY_STRING")); request_info.query_string=query_string; if(cgi) { // few absolute obligatory @@ -385,8 +445,7 @@ static void real_parser_handler(const ch SAPI::die("Execution canceled"); // prepare to process request - Request request(SAPI_info, - request_info, + Request request(SAPI_info, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS, true /* status_allowed */); @@ -426,76 +485,69 @@ static void real_parser_handler(const ch // no request [prevent signal handlers from accessing invalid memory] ::request=0; - + + // finalize global variables + pa_globals_done(); + // - pa_done_socks(); + pa_socks_done(); } -#if _MSC_VER && !defined(_DEBUG) -# define PA_USE___TRY -struct Parser_executed { - bool with_system_exception; - LPEXCEPTION_POINTERS system_exception; -}; -#endif - -static -#ifdef PA_USE___TRY -Parser_executed -#else -void -#endif -call_real_parser_handler__do_SEH_return_it( - const char* filespec_to_process, - const char* request_method, bool header_only) { -#ifdef PA_USE___TRY - Parser_executed result={false}; - __try { -#endif +#ifdef PA_SUPPRESS_SYSTEM_EXCEPTION +static const Exception +call_real_parser_handler__do_PEH_return_it( + const char* filespec_to_process, + const char* request_method, bool header_only) +{ + try { real_parser_handler( filespec_to_process, request_method, header_only); - -#ifdef PA_USE___TRY - } __except ( - (result.system_exception=GetExceptionInformation()), - EXCEPTION_EXECUTE_HANDLER) { - result.with_system_exception=true; + } catch(const Exception& e) { + return e; } - return result; -#endif + + return Exception(); } +static void call_real_parser_handler__supress_system_exception( + const char* filespec_to_process, + const char* request_method, bool header_only) +{ + Exception parser_exception; + LPEXCEPTION_POINTERS system_exception=0; -static void call_real_parser_handler__do_SEH( - const char* filespec_to_process, - const char* request_method, bool header_only) { -#ifdef PA_USE___TRY - Parser_executed executed= -#endif - call_real_parser_handler__do_SEH_return_it(filespec_to_process, + __try { + parser_exception=call_real_parser_handler__do_PEH_return_it( + filespec_to_process, request_method, header_only); - -#ifdef PA_USE___TRY - if(executed.with_system_exception) - if(executed.system_exception) - if(_EXCEPTION_RECORD *er=executed.system_exception->ExceptionRecord) - throw Exception(0, + } __except ( + (system_exception=GetExceptionInformation()), + EXCEPTION_EXECUTE_HANDLER) + { + + if(system_exception) + if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord) + throw Exception("system", 0, - "Exception 0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress); + "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress); else - throw Exception(0, + throw Exception("system", 0, - "Exception "); + ""); else - throw Exception(0, + throw Exception("system", 0, - "Exception "); -#endif + ""); + } + + if(parser_exception) + throw Exception(parser_exception); } +#endif static void usage(const char* program) { printf( - "Parser/%s Copyright(c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)\n" + "Parser/%s Copyright(c) 2001-2004 ArtLebedev Group (http://www.artlebedev.com)\n" "Author: Alexandr Petrosian (http://paf.design.ru)\n" "\n" "Usage: %s [options] file\n" @@ -511,6 +563,7 @@ static void usage(const char* program) { } int main(int argc, char *argv[]) { + //_asm int 3; GC_java_finalization=0; #ifndef PA_DEBUG_DISABLE_GC @@ -548,7 +601,7 @@ int main(int argc, char *argv[]) { #endif #ifdef _DEBUG - //_crtBreakAlloc=4042; + //_crtBreakAlloc=46; #endif argv0=argv[0]; @@ -629,17 +682,20 @@ int main(int argc, char *argv[]) { bool header_only=request_method && strcasecmp(request_method, "HEAD")==0; try { // global try - call_real_parser_handler__do_SEH( +#ifdef PA_SUPPRESS_SYSTEM_EXCEPTION + call_real_parser_handler__supress_system_exception( +#else + real_parser_handler( +#endif filespec_to_process, request_method, header_only); } catch(const Exception& e) { // global problem // don't allocate anything on pool here: // possible pool' exception not catch-ed now // and there could be out-of-memory exception - const char* body=e.comment(); char buf[MAX_STRING]; - snprintf(buf, MAX_STRING, "exception in request exception handler: %s", - body); + snprintf(buf, MAX_STRING, "Unhandled exception %s", + e.comment()); // log it SAPI::log(SAPI_info, "%s", buf);