--- parser3/src/targets/cgi/parser3.C 2001/04/25 10:25:37 1.72 +++ parser3/src/targets/cgi/parser3.C 2007/08/17 08:16:11 1.243 @@ -1,97 +1,235 @@ /** @file Parser: scripting and CGI main. - Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com) - - Author: Alexander Petrosyan (http://design.ru/paf) - - $Id: parser3.C,v 1.72 2001/04/25 10:25:37 paf Exp $ + Copyright(c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) */ +static const char * const IDENT_PARSER3_C="$Date: 2007/08/17 08:16:11 $"; + #include "pa_config_includes.h" -#ifdef WIN32 -# include +#if _MSC_VER +# include #endif #include "pa_sapi.h" +#include "classes.h" #include "pa_common.h" -#include "pa_globals.h" #include "pa_request.h" #include "pa_socks.h" #include "pa_version.h" -/// IIS refuses to read bigger chunks -const size_t READ_POST_CHUNK_SIZE=0x400*0x400; // 1M +#ifdef WIN32 +# include +# include "getopt.h" +#else +# include +#endif -const char *argv0; -Pool pool(0); // global pool [dont describe to doxygen: it confuses it with param names] -bool cgi; ///< we were started as CGI? +// defines -#ifdef WIN32 -/// global system errors into parser exceptions converter -static LONG WINAPI TopLevelExceptionFilter(struct _EXCEPTION_POINTERS *ExceptionInfo) { - char buf[MAX_STRING]; - if(ExceptionInfo && ExceptionInfo->ExceptionRecord) { - struct _EXCEPTION_RECORD *er=ExceptionInfo->ExceptionRecord; - snprintf(buf, MAX_STRING, "Exception 0x%X at %p", - er->ExceptionCode, - er->ExceptionAddress); - } else - strcpy(buf, "Exception "); - - PTHROW(0, 0, - 0, - buf); +// comment remove me after debugging +//#define PA_DEBUG_CGI_ENTRY_EXIT "c:\\parser\\debug-parser3.log" - return EXCEPTION_EXECUTE_HANDLER; // never reached -} +#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 + +static const char* argv0; +static const char* config_filespec_cstr=0; +static bool fail_on_config_read_problem=true; + +static bool cgi; ///< we were started as CGI? +static bool mail_received=false; ///< we were started with -m option? [asked to parse incoming message to $mail:received] + +// for signal handlers +Request *request=0; +Request_info *request_info=0; +bool execution_canceled=false; + // SAPI -// appends to parser3.log located beside my binary -void SAPI::log(Pool& pool, const char *fmt, ...) { - bool opened; + +class SAPI_Info{} SAPI_info; + +static void log(const char* fmt, va_list args) { + bool opened=false; FILE *f=0; - if(argv0) { - // beside by binary + 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; + } +#ifdef PA_DEBUG_CGI_ENTRY_EXIT + f=fopen(PA_DEBUG_CGI_ENTRY_EXIT, "at"); + opened=f!=0; +#endif + + 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(!( + rsplit(beside_config_path, '/') || + rsplit(beside_config_path, '\\'))) { // strip filename + // no path, just filename + beside_config_path[0]='.'; beside_config_path[1]=0; + } + char file_spec[MAX_STRING]; - strncpy(file_spec, argv0, MAX_STRING); // filespec of my binary - rsplit(file_spec, '/'); rsplit(file_spec, '\\');// strip filename - strcat(file_spec, "/parser3.log"); + snprintf(file_spec, MAX_STRING, + "%s/parser3.log", beside_config_path); f=fopen(file_spec, "at"); + opened=f!=0; } - opened=f!=0; + // fallback to stderr if(!opened) f=stderr; + // use no memory [so that we could log out-of-memory error] + setbuf(f, 0); // stderr stream is unbuffered by default, but still... + // prefix time_t t=time(0); - const char *stamp=ctime(&t); - fprintf(f, "[%.*s] ", strlen(stamp)-1, stamp); + if(const char* stamp=ctime(&t)) { // never saw that + if(size_t len=strlen(stamp)) // saw once stamp being ="" + fprintf(f, "[%.*s] [%u] ", len-1, stamp, + (unsigned int)getpid() + ); + } // message - va_list args; - va_start(args,fmt); - vfprintf(f, fmt, args); - va_end(args); + + char buf[MAX_STRING]; + size_t size=vsnprintf(buf, MAX_STRING, fmt, args); + remove_crlf(buf, buf+size); + fwrite(buf, size, 1, f); + + if(request_info) + fprintf(f, " [uri=%s, method=%s, cl=%u]", + request_info->uri? request_info->uri: "", + request_info->method? request_info->method: "", + request_info->content_length); + else + fputs(" [no request info]", f); + // newline - fprintf(f, "\n"); + fputs("\n", f); if(opened) fclose(f); + else + fflush(f); +} +#ifdef PA_DEBUG_CGI_ENTRY_EXIT +static void log(const char* fmt, ...) { + va_list args; + va_start(args,fmt); + log(fmt, args); + va_end(args); +} +#endif + +// appends to parser3.log located beside my binary if openable, to stderr otherwize +void SAPI::log(SAPI_Info&, const char* fmt, ...) { + va_list args; + va_start(args,fmt); + ::log(fmt, args); + va_end(args); +} + +static void die_or_abort(const char* fmt, va_list args, bool write_core) { + // log + + // logging is more important than user + // she can cancel download, we'd get SIGPIPE, + // nothing would be logged then + ::log(fmt, args); + + // inform user + + char body[MAX_STRING]; + int content_length=vsnprintf(body, MAX_STRING, fmt, args); + + // prepare header + // let's be honest, that's bad we couldn't produce valid output + SAPI::add_header_attribute(SAPI_info, "status", "500"); + SAPI::add_header_attribute(SAPI_info, "content-type", "text/plain"); + char content_length_cstr[MAX_NUMBER]; + snprintf(content_length_cstr, sizeof(content_length_cstr), "%u", content_length); + SAPI::add_header_attribute(SAPI_info, "content-length", content_length_cstr); + + // send header + SAPI::send_header(SAPI_info); + + // body + SAPI::send_body(SAPI_info, body, content_length); + + // exit & try to produce core dump[unix] or invoke debugger[Win32 Debug version] + if(write_core) { +#if defined(WIN32) && !defined(_DEBUG) + // IIS with abort failes to show STDOUT, it just barks "abnormal program termination" + exit(1); +#else +#if _MSC_VER + _asm int 3; +#endif + abort(); +#endif + } + else + exit(1); +} + +void SAPI::die(const char* fmt, ...) { + va_list args; + va_start(args, fmt); + die_or_abort(fmt, args, false/*write core?*/); +//unreachable anyway va_end(args); +} + +void SAPI::abort(const char* fmt, ...) { + va_list args; + va_start(args, fmt); + die_or_abort(fmt, args, true/*write core?*/); +//unreachable anyway va_end(args); +} + +char* SAPI::get_env(SAPI_Info& , const char* name) { + if(char *local=getenv(name)) + return pa_strdup(local); + else + return 0; } -const char *SAPI::get_env(Pool& pool, const char *name) { - return getenv(name); +const char* const *SAPI::environment(SAPI_Info&) { +#ifdef _MSC_VER + extern char **_environ; + return _environ; +#else + extern char **environ; + return environ; +#endif } -size_t SAPI::read_post(Pool& pool, char *buf, size_t max_bytes) { +size_t SAPI::read_post(SAPI_Info& , char *buf, size_t max_bytes) { size_t read_size=0; do { - int chunk_size=read(fileno(stdin), + ssize_t chunk_size=read(fileno(stdin), buf+read_size, min(READ_POST_CHUNK_SIZE, max_bytes-read_size)); - if(chunk_size<0) + if(chunk_size<=0) break; read_size+=chunk_size; } while(read_sizeconsole.was_used()) ) + printf("%s: %s\n", dont_store_key, dont_store_value); } /// @todo intelligent cache-control -void SAPI::send_header(Pool& pool) { +void SAPI::send_header(SAPI_Info& ) { if(cgi) { - puts("expires: Fri, 23 Mar 2001 09:32:23 GMT"); +// puts("expires: Fri, 23 Mar 2001 09:32:23 GMT"); // header | body delimiter puts(""); } } -void SAPI::send_body(Pool& pool, 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); +} + +// + +static void full_file_spec(const char* file_name, char *buf, size_t buf_size) { + if(file_name) + if(file_name[0]=='/' +#ifdef WIN32 + || file_name[0] && file_name[1]==':' +#endif + ) + strncpy(buf, file_name, buf_size); + else { + char cwd[MAX_STRING]; getcwd(cwd, MAX_STRING); + snprintf(buf, buf_size, "%s/%s", cwd, file_name); + } + else + buf[0]=0; +#ifdef WIN32 + back_slashes_to_slashes(buf); +#endif +} + +static void log_signal(const char* signal_name) { + if(request_info) + 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->content_length); + else + SAPI::log(SAPI_info, "%s received before or after processing request", + signal_name); +} + +#ifdef SIGUSR1 +static void SIGUSR1_handler(int /*sig*/){ + log_signal("SIGUSR1"); +} +#endif + +#ifdef SIGPIPE +#define SIGPIPE_NAME "SIGPIPE" +static const String sigpipe_name(SIGPIPE_NAME); +static void SIGPIPE_handler(int /*sig*/){ + Value* sigpipe=0; + if(request) + sigpipe=request->main_class.get_element(sigpipe_name, request->main_class, false); + if(sigpipe && sigpipe->as_bool()) + log_signal("SIGPIPE"); + + execution_canceled=true; + if(request) + request->set_interrupted(true); +} +#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 +main workhorse - @todo + @todo IIS: remove trailing default-document[index.html] from $request.uri. to do that we need to consult metabase, wich is tested but seems slow. */ -int main(int argc, char *argv[]) { - argv0=argv[0]; - - umask(2); +static void real_parser_handler(const char* filespec_to_process, + const char* request_method, bool header_only) +{ + // init socks + pa_socks_init(); + // init global variables + pa_globals_init(); + + if(!filespec_to_process || !*filespec_to_process) + SAPI::die("Parser/%s" +#ifdef PA_DEBUG_CGI_ENTRY_EXIT + " with entry/exit tracing" +#endif + , PARSER_VERSION); + + // Request info + Request_info request_info; memset(&request_info, 0, sizeof(request_info)); + char document_root_buf[MAX_STRING]; + if(cgi) { + if(const char* env_document_root=getenv("DOCUMENT_ROOT")) + request_info.document_root=env_document_root; + else if(const char* path_info=getenv("PATH_INFO")) { + // IIS + size_t len=min(sizeof(document_root_buf)-1, strlen(filespec_to_process)-strlen(path_info)); + memcpy(document_root_buf, filespec_to_process, len); document_root_buf[len]=0; + request_info.document_root=document_root_buf; + } else + throw Exception(PARSER_RUNTIME, + 0, + "CGI: no PATH_INFO defined(in reinventing DOCUMENT_ROOT)"); + } else { + full_file_spec("", document_root_buf, sizeof(document_root_buf)); + request_info.document_root=document_root_buf; + } + request_info.path_translated=filespec_to_process; + request_info.method=request_method ? request_method : "GET"; + const char* query_string= #ifdef WIN32 - setmode(fileno(stdin), _O_BINARY); - setmode(fileno(stdout), _O_BINARY); - setmode(fileno(stderr), _O_BINARY); + maybe_reconstruct_IIS_status_in_qs #endif + (getenv("QUERY_STRING")); + request_info.query_string=query_string; + if(cgi) { + // few absolute obligatory + const char* path_info=getenv("PATH_INFO"); + if(!path_info) + SAPI::die("CGI: illegal call (missing PATH_INFO)"); + const char* script_name=getenv("SCRIPT_NAME"); + if(!script_name) + SAPI::die("CGI: illegal call (missing SCRIPT_NAME)"); + + const char* env_request_uri=getenv("REQUEST_URI"); + if(env_request_uri) + request_info.uri=env_request_uri; + else + if(query_string) { + char* reconstructed_uri=new(PointerFreeGC) char[ + strlen(path_info)+1/*'?'*/+ + strlen(query_string)+1/*0*/]; + strcpy(reconstructed_uri, path_info); + strcat(reconstructed_uri, "?"); + strcat(reconstructed_uri, query_string); + request_info.uri=reconstructed_uri; + } else + request_info.uri=path_info; - // were we started as CGI? - cgi= - getenv("SERVER_SOFTWARE") || - getenv("SERVER_NAME") || - getenv("GATEWAY_INTERFACE") || - getenv("REQUEST_METHOD"); + if(env_request_uri) { // apache & others stuck to standards + /* + http://parser3/env.html?123 =OK + $request:uri=/env.html?123 + REQUEST_URI='/env.html?123' + SCRIPT_NAME='/cgi-bin/parser3' + PATH_INFO='/env.html' + + http://parser3/cgi-bin/parser3/env.html?123 =ERROR + $request:uri=/cgi-bin/parser3/env.html?123 + REQUEST_URI='/cgi-bin/parser3/env.html?123' + SCRIPT_NAME='/cgi-bin/parser3' + PATH_INFO='/env.html' + */ + size_t script_name_len=strlen(script_name); + size_t uri_len=strlen(env_request_uri); + if(strncmp(env_request_uri, script_name, script_name_len)==0 && + script_name_len != uri_len) // under IIS they are the same + SAPI::die("CGI: illegal call (1)"); + } else { // seen on IIS5 + /* + http://nestle/env.html?123 =OK + $request:uri=/env.html?123 + REQUEST_URI='' + SCRIPT_NAME='/env.html' + PATH_INFO='/env.html' + + http://nestle/cgi-bin/parser3.exe/env.html =ERROR + $request:uri=/env.html + REQUEST_URI='' + SCRIPT_NAME='/cgi-bin/parser3.exe' + PATH_INFO='/env.html' + */ + if(strcmp(script_name, path_info)!=0) + SAPI::die("CGI: illegal call (2)"); + } + } else + request_info.uri=""; - if(!cgi) { - if(argc<2) { - printf( - "Parser/%s Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com)\n" - "Author: Alexander Petrosyan (http://design.ru/paf)\n" - "\n" - "Usage: %s \n", - PARSER_VERSION, - argv0?argv0:"parser3"); - return 1; + request_info.content_type=getenv("CONTENT_TYPE"); + const char* content_length=getenv("CONTENT_LENGTH"); + request_info.content_length=(content_length?atoi(content_length):0); + request_info.cookie=getenv("HTTP_COOKIE"); + request_info.mail_received=mail_received; + + // get request_info ptr for signal handlers + ::request_info=&request_info; + if(execution_canceled) + SAPI::die("Execution canceled"); + +#ifdef PA_DEBUG_CGI_ENTRY_EXIT + log("request_info: method=%s, uri=%s, q=%s, dr=%s, pt=%s, cookies=%s, cl=%u", + request_info.method, + request_info.uri, + request_info.query_string, + request_info.document_root, + request_info.path_translated, + request_info.cookie, + request_info.content_length); +#endif + + // prepare to process request + Request request(SAPI_info, request_info, + cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS, + true /* status_allowed */); + + // get request ptr for signal handlers + ::request=&request; + + char config_filespec_buf[MAX_STRING]; + if(!config_filespec_cstr) { + const char* config_by_env=getenv(PARSER_CONFIG_ENV_NAME); + if(!config_by_env) + config_by_env=getenv(REDIRECT_PREFIX PARSER_CONFIG_ENV_NAME); + if(config_by_env) + config_filespec_cstr=config_by_env; + else { + // beside by binary + char beside_binary_path[MAX_STRING]; + strncpy(beside_binary_path, argv0, MAX_STRING-1); beside_binary_path[MAX_STRING-1]=0; // filespec of my binary + if(!( + rsplit(beside_binary_path, '/') || + rsplit(beside_binary_path, '\\'))) { // strip filename + // no path, just filename + // @todo full path, not ./! + beside_binary_path[0]='.'; beside_binary_path[1]=0; + } + snprintf(config_filespec_buf, MAX_STRING, + "%s/%s", + beside_binary_path, AUTO_FILE_NAME); + config_filespec_cstr=config_filespec_buf; + fail_on_config_read_problem=entry_exists(config_filespec_cstr); } } + + // process the request + request.core( + config_filespec_cstr, fail_on_config_read_problem, + header_only); + + // no request [prevent signal handlers from accessing invalid memory] + ::request=0; + + // finalize global variables + pa_globals_done(); + + // + pa_socks_done(); +} + +#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); + } catch(const Exception& e) { + return e; + } - char *filespec_to_process=cgi?getenv("PATH_TRANSLATED"):argv[1]; -#ifdef WIN32 - back_slashes_to_slashes(filespec_to_process); + 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; + + __try { + parser_exception=call_real_parser_handler__do_PEH_return_it( + filespec_to_process, + request_method, header_only); + } __except ( + (system_exception=GetExceptionInformation()), + EXCEPTION_EXECUTE_HANDLER) + { + + if(system_exception) + if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord) + throw Exception("system", + 0, + "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress); + else + throw Exception("system", + 0, + ""); + else + throw Exception("system", + 0, + ""); + } + + if(parser_exception) + throw Exception(parser_exception); +} #endif - const char *request_method=getenv("REQUEST_METHOD"); - bool header_only=request_method && strcasecmp(request_method, "HEAD")==0; - PTRY { // global try - // must be first in PTRY{}PCATCH -#ifdef WIN32 - SetUnhandledExceptionFilter(&TopLevelExceptionFilter); +static void usage(const char* program) { + printf( + "Parser/%s\n" + "Copyright(c) 2001-2007 ArtLebedev Group (http://www.artlebedev.com)\n" + "Author: Alexandr Petrosian (http://paf.design.ru)\n" + "\n" + "Usage: %s [options] file\n" + "Options are:\n" +#ifdef WITH_MAILRECEIVE + " -m Parse mail, put received letter to $mail:received\n" #endif + " -f config_file Use this config file (/path/to/auto.p)\n" + " -h Display usage information (this message)\n" + , PARSER_VERSION, + program); + exit(EINVAL); +} - // init socks - init_socks(pool); +int main(int argc, char *argv[]) { +#ifdef PA_DEBUG_CGI_ENTRY_EXIT + log("main: entry"); +#endif + //_asm int 3; + GC_java_finalization=0; - // init global variables - pa_globals_init(pool); +#ifndef PA_DEBUG_DISABLE_GC + // Dont collect unless explicitly requested + // this is quicker (~30% ), but less memory-efficient(~8%) + // so deciding for speed + GC_dont_gc=1; +#endif +/* + + Array test; + test+=3; + test+=4; +// int a=test.count(); + int i=0; + scanf("%d", &i); + int b=test.get(i); +// int b=test.get(10); + printf("%d", b);//test.count());*/ + +#ifdef SIGUSR1 + if(signal(SIGUSR1, SIGUSR1_handler)==SIG_ERR) + SAPI::die("Can not set handler for SIGUSR1"); +#endif +#ifdef SIGPIPE + if(signal(SIGPIPE, SIGPIPE_handler)==SIG_ERR) + SAPI::die("Can not set handler for SIGPIPE"); +#endif - if(!filespec_to_process) - PTHROW(0, 0, - 0, - "Parser/%s", PARSER_VERSION); - // Request info - Request::Info request_info; - if(cgi) { - if(const char *env_document_root=SAPI::get_env(pool, "DOCUMENT_ROOT")) - request_info.document_root=env_document_root; - else if(const char *path_info=SAPI::get_env(pool, "PATH_INFO")) { - // IIS - size_t len=strlen(filespec_to_process)-strlen(path_info); - char *buf=(char *)pool.malloc(len+1); - strncpy(buf, filespec_to_process, len); - buf[len]=0; - request_info.document_root=buf; - } else - PTHROW(0, 0, - 0, - "CGI: no PATH_INFO defined(in reinventing DOCUMENT_ROOT)"); - } else { - static char buf[MAX_STRING]; - strncpy(buf, filespec_to_process, MAX_STRING); - if(rsplit(buf, '/') || rsplit(buf, '\\')) // strip filename - request_info.document_root=buf; - else - request_info.document_root=""; - } - request_info.path_translated=filespec_to_process; - request_info.method=request_method; - const char *query_string=SAPI::get_env(pool, "QUERY_STRING"); - request_info.query_string=query_string; - if(cgi) { - if(const char *env_request_uri=SAPI::get_env(pool, "REQUEST_URI")) - request_info.uri=env_request_uri; - else if(const char *path_info=SAPI::get_env(pool, "PATH_INFO")) - if(query_string) { - char *reconstructed_uri=(char *)malloc( - strlen(path_info)+1/*'?'*/+ - strlen(query_string)+1/*0*/); - strcpy(reconstructed_uri, path_info); - strcat(reconstructed_uri, "?"); - strcat(reconstructed_uri, query_string); - request_info.uri=reconstructed_uri; - } else - request_info.uri=path_info; - else - PTHROW(0, 0, - 0, - "CGI: no PATH_INFO defined(in reinventing REQUEST_URI)"); +#ifdef DEBUG_MAILRECEIVE + if(FILE *fake_in=fopen(DEBUG_MAILRECEIVE, "rt")) { + dup2(fake_in->_file, 0/*STDIN_FILENO*/); + } +#endif - if(const char *script_name=SAPI::get_env(pool, "SCRIPT_NAME")) { - size_t script_name_len=strlen(script_name); - size_t uri_len=strlen(request_info.uri); - if(strncmp(request_info.uri,script_name, script_name_len)==0 && - script_name_len != uri_len) // under IIS they are the same - PTHROW(0, 0, - 0, - "CGI: illegal call"); - } - } else - request_info.uri=0; +#ifdef _DEBUG + //_crtBreakAlloc=46; +#endif + argv0=argv[0]; - request_info.content_type=SAPI::get_env(pool, "CONTENT_TYPE"); - const char *content_length=SAPI::get_env(pool, "CONTENT_LENGTH"); - request_info.content_length=(content_length?atoi(content_length):0); - request_info.cookie=SAPI::get_env(pool, "HTTP_COOKIE"); - request_info.user_agent=SAPI::get_env(pool, "HTTP_USER_AGENT"); - - // prepare to process request - Request request(pool, - request_info, - cgi ? String::UL_HTML_TYPO : String::UL_AS_IS - ); + umask(2); + + // were we started as CGI? + cgi= + getenv("SERVER_SOFTWARE") || + getenv("SERVER_NAME") || + getenv("GATEWAY_INTERFACE") || + getenv("REQUEST_METHOD"); + + char *raw_filespec_to_process; + if(cgi) { + raw_filespec_to_process=getenv("PATH_TRANSLATED"); + if(raw_filespec_to_process && !*raw_filespec_to_process) + raw_filespec_to_process=0; + } else { + optind = 1; + opterr = 0; + int c; + while((c = getopt(argc, argv, "hf:" +#ifdef WITH_MAILRECEIVE + "m" +#endif + )) > 0) { + switch (c) { + case 'h': + usage(argv[0]); + break; + case 'f': + config_filespec_cstr=optarg; + break; +#ifdef WITH_MAILRECEIVE + case 'm': + mail_received=true; + break; +#endif + default: + fprintf(stderr, "%s: invalid option '%c'\n", argv[0], optopt); + usage(argv[0]); + break; + } + } + if (optind != argc - 1) { + fprintf(stderr, "%s: file not specified\n", argv[0]); + usage(argv[0]); + } - // some root-controlled location + raw_filespec_to_process=argv[optind++]; + } + #ifdef WIN32 - // c:\windows - static char root_auto_path[MAX_STRING]; - GetWindowsDirectory(root_auto_path, MAX_STRING); -#else - // ~nobody todo: figure out a better place - const char *root_auto_path=SAPI::get_env(pool, "HOME"); + setmode(fileno(stdin), _O_BINARY); + setmode(fileno(stdout), _O_BINARY); + setmode(fileno(stderr), _O_BINARY); #endif - - // beside by binary - static char site_auto_path[MAX_STRING]; - strncpy(site_auto_path, argv[0], MAX_STRING); // filespec of my binary - rsplit(site_auto_path, '/'); rsplit(site_auto_path, '\\');// strip filename - - // process the request - request.core( - root_auto_path, false, - site_auto_path, false, - header_only); - // - done_socks(); +#if defined(_MSC_VER) && defined(_DEBUG) + // Get current flag + int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG ); + + // Turn on leak-checking bit + tmpFlag |= _CRTDBG_LEAK_CHECK_DF; + + // Set flag to the new value + _CrtSetDbgFlag( tmpFlag ); +// _CrtSetBreakAlloc(61); - // must be last in PTRY{}PCATCH -#ifdef WIN32 - SetUnhandledExceptionFilter(0); + _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE ); + _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR ); #endif - // successful finish - return 0; - } PCATCH(e) { // global problem - // must be first in PCATCH{} -#ifdef WIN32 - SetUnhandledExceptionFilter(0); + + char filespec_to_process[MAX_STRING]; + full_file_spec(raw_filespec_to_process, filespec_to_process, sizeof(filespec_to_process)); + + const char* request_method=getenv("REQUEST_METHOD"); + bool header_only=request_method && strcasecmp(request_method, "HEAD")==0; + + try { // global try +#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, "Unhandled exception %s", + e.comment()); // log it - SAPI::log(pool, "exception in request exception handler: %s", body); + SAPI::log(SAPI_info, "%s", buf); // - int content_length=strlen(body); + int content_length=strlen(buf); // prepare header - SAPI::add_header_attribute(pool, "content-type", "text/plain"); + SAPI::add_header_attribute(SAPI_info, "content-type", "text/plain"); char content_length_cstr[MAX_NUMBER]; snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length); - SAPI::add_header_attribute(pool, "content-length", content_length_cstr); + SAPI::add_header_attribute(SAPI_info, "content-length", content_length_cstr); // send header - SAPI::send_header(pool); + SAPI::send_header(SAPI_info); - // body + // send body if(!header_only) - SAPI::send_body(pool, body, content_length); + SAPI::send_body(SAPI_info, buf, content_length); // unsuccessful finish - return 1; } - PEND_CATCH + +#ifdef PA_DEBUG_CGI_ENTRY_EXIT + log("main: successful return"); +#endif + return 0; }