--- parser3/src/targets/cgi/parser3.C 2001/05/15 11:36:15 1.78 +++ parser3/src/targets/cgi/parser3.C 2002/06/12 14:09:50 1.181 @@ -1,17 +1,19 @@ /** @file Parser: scripting and CGI main. - Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com) + Copyright(c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) - Author: Alexander Petrosyan (http://design.ru/paf) - - $Id: parser3.C,v 1.78 2001/05/15 11:36:15 parser Exp $ + $Id: parser3.C,v 1.181 2002/06/12 14:09:50 paf Exp $ */ #include "pa_config_includes.h" -#ifdef WIN32 -# include +#if _MSC_VER +# include +# include +#else +# include "pa_config_paths.h" #endif #include "pa_sapi.h" @@ -20,44 +22,67 @@ #include "pa_request.h" #include "pa_socks.h" #include "pa_version.h" +#include "pool_storage.h" + +#ifdef WIN32 +# include +#endif + +//#define DEBUG_POOL_MALLOC +//#define DEBUG_STRING_APPENDS_VS_EXPANDS + +#ifdef DEBUG_STRING_APPENDS_VS_EXPANDS +extern ulong + string_piece_appends, + wcontext_result_size, + total_alloc_size, + string_string_shortcut_economy; +#endif + +// consts + +#ifndef _PROFILE +extern const char *main_RCSIds[]; +#ifdef USE_SMTP +extern const char *smtp_RCSIds[]; +#endif +extern const char *gd_RCSIds[]; +extern const char *classes_RCSIds[]; +extern const char *types_RCSIds[]; +extern const char *parser3_RCSIds[]; +const char **RCSIds[]={ + main_RCSIds, +#ifdef USE_SMTP + smtp_RCSIds, +#endif + gd_RCSIds, + classes_RCSIds, + types_RCSIds, + parser3_RCSIds, + 0 +}; +#endif + +#define REDIRECT_PREFIX "REDIRECT_" +#define PARSER_CONFIG_ENV_NAME "CGI_PARSER_CONFIG" /// IIS refuses to read bigger chunks const size_t READ_POST_CHUNK_SIZE=0x400*0x400; // 1M const char *argv0; -Pool pool(0); // global pool [dont describe to doxygen: it confuses it with param names] +Pool *pool; // global pool [dont describe to doxygen: it confuses it with param names] bool cgi; ///< we were started as CGI? -#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); - - return EXCEPTION_EXECUTE_HANDLER; // never reached -} -#endif - // SAPI -// appends to parser3.log located beside my binary -void SAPI::log(Pool& pool, const char *fmt, ...) { + +static void log(const char *fmt, va_list args) { bool opened; FILE *f=0; if(argv0) { // beside by binary char file_spec[MAX_STRING]; - strncpy(file_spec, argv0, MAX_STRING); // filespec of my binary + strncpy(file_spec, argv0, MAX_STRING-1); file_spec[MAX_STRING-1]=0; // filespec of my binary rsplit(file_spec, '/'); rsplit(file_spec, '\\');// strip filename strcat(file_spec, "/parser3.log"); f=fopen(file_spec, "at"); @@ -68,30 +93,93 @@ void SAPI::log(Pool& pool, const char *f // 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] ", len-1, stamp); + } // 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); // newline fprintf(f, "\n"); if(opened) fclose(f); + else + fflush(f); +} + +// appends to parser3.log located beside my binary if openable, to stderr otherwize +void SAPI::log(Pool& , const char *fmt, ...) { + va_list args; + va_start(args,fmt); + ::log(fmt, args); + va_end(args); +} + +void SAPI::die(const char *fmt, ...) { +#ifdef DEBUG_POOL_MALLOC + extern void log_pool_stats(Pool& pool); + log_pool_stats(*pool); +#endif + + va_list args; + va_start(args,fmt); + // log + + // logging is more important than user + // she can cancel download, we'd get SIG_PIPE, + // nothing would be logged then + ::log(fmt, args); + + // inform user + + char body[MAX_STRING]; + int content_length=vsnprintf(body, MAX_STRING, fmt, args); + + va_end(args); + + // prepare header + // let's be honest, that's bad we couldn't produce valid output + SAPI::add_header_attribute(*pool, "status", "500"); + SAPI::add_header_attribute(*pool, "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(*pool, "content-length", content_length_cstr); + + // send header + SAPI::send_header(*pool); + + // body + SAPI::send_body(*pool, body, content_length); + + exit(1); +} + +const char *SAPI::get_env(Pool& , const char *name) { + return getenv(name); } -const char *SAPI::get_env(Pool& pool, const char *name) { - return getenv(name); +const char *const *SAPI::environment(Pool&) { +#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(Pool& , char *buf, size_t max_bytes) { size_t read_size=0; do { int 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_sizemalloc( + 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 + throw Exception("parser.runtime", + 0, + "CGI: no PATH_INFO defined(in reinventing REQUEST_URI)"); + +#ifndef WIN32 + // they've changed this under IIS5. + 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 + SAPI::die("CGI: illegal call"); + } +#endif + } else + request_info.uri=""; + + 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"); + + // prepare to process request + Request request(*pool, + request_info, +#ifdef _DEBUG + String::UL_HTML|String::UL_OPTIMIZE_BIT +#else + cgi ? String::UL_HTML|String::UL_OPTIMIZE_BIT : String::UL_AS_IS +#endif + , + true /* status_allowed */); + + const char *config_filespec_cstr; + char config_filespec_buf[MAX_STRING]; + 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 + // @todo full path, not ./! + 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 + beside_binary_path[0]='.'; beside_binary_path[1]=0; + } + snprintf(config_filespec_buf, MAX_STRING, + "%s/%s", + beside_binary_path, CONFIG_FILE_NAME); + config_filespec_cstr=config_filespec_buf; + } + + // process the request + request.core( + config_filespec_cstr, false /*fail_on_read_problem*/, + header_only); + + // + done_socks(); + +#ifdef DEBUG_POOL_MALLOC + extern void log_pool_stats(Pool& pool); + log_pool_stats(*pool); +#endif + +#ifdef DEBUG_STRING_APPENDS_VS_EXPANDS + SAPI::log(*pool, + "string piece appends=%lu, wcontext_result_size=%lu, string_string_shortcut_economy_closer=%lu, total_alloc_size=%lu", + string_piece_appends, + wcontext_result_size, + string_string_shortcut_economy, + total_alloc_size); +#endif + +} + +void call_real_parser_handler__do_SEH( + const char *filespec_to_process, + const char *request_method, bool header_only) { +#if _MSC_VER && !defined(_DEBUG) + LPEXCEPTION_POINTERS system_exception=0; + __try { +#endif + real_parser_handler( + filespec_to_process, + request_method, header_only); + +#if _MSC_VER && !defined(_DEBUG) + } __except ( + (system_exception=GetExceptionInformation()), + EXCEPTION_EXECUTE_HANDLER) { + + if(system_exception) + if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord) + throw Exception(0, + 0, + "Exception 0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress); + else + throw Exception(0, 0, "Exception "); + else + throw Exception(0, 0, "Exception "); + } +#endif +} + +#if _MSC_VER +int failed_new(size_t size) { + SAPI::die("out of memory in 'new', failed to allocated %u bytes", size); + return 0; // not reached +} +#endif + +#ifdef HAVE_SET_NEW_HANDLER +void failed_new() { + SAPI::die("out of memory in 'new'"); +} +#endif + int main(int argc, char *argv[]) { + Pool_storage global_pool_storage; + Pool global_pool(&global_pool_storage); + pool=&global_pool; + +#ifdef _DEBUG +// _crtBreakAlloc=33112; +#endif +// _asm int 3; argv0=argv[0]; umask(2); -#ifdef WIN32 - setmode(fileno(stdin), _O_BINARY); - setmode(fileno(stdout), _O_BINARY); - setmode(fileno(stderr), _O_BINARY); -#endif - // were we started as CGI? cgi= getenv("SERVER_SOFTWARE") || @@ -147,8 +434,8 @@ int main(int argc, char *argv[]) { 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" + "Parser/%s Copyright(c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com)\n" + "Author: Alexandr Petrosian (http://paf.design.ru)\n" "\n" "Usage: %s \n", PARSER_VERSION, @@ -157,167 +444,63 @@ int main(int argc, char *argv[]) { } } - char *filespec_to_process=cgi?getenv("PATH_TRANSLATED"):argv[1]; -#ifdef WIN32 - back_slashes_to_slashes(filespec_to_process); -#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); + setmode(fileno(stdin), _O_BINARY); + setmode(fileno(stdout), _O_BINARY); + setmode(fileno(stderr), _O_BINARY); #endif - // init socks - init_socks(pool); +#if _MSC_VER + _set_new_handler(failed_new); - // init global classes - init_methoded_array(pool); - // init global variables - pa_globals_init(pool); +#ifdef _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(471); - 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)"); +#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; +#endif - 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_USER_HTML : String::UL_AS_IS - ); - - // some root-controlled location -#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"); +#ifdef HAVE_SET_NEW_HANDLER + std::set_new_handler(failed_new); #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(); + char *raw_filespec_to_process=cgi?getenv("PATH_TRANSLATED"):argv[1]; + char filespec_to_process[MAX_STRING]; + full_file_spec(raw_filespec_to_process, filespec_to_process, sizeof(filespec_to_process)); - extern void log_pool_stats(Pool& pool); - log_pool_stats(pool); + const char *request_method=getenv("REQUEST_METHOD"); + bool header_only=request_method && strcasecmp(request_method, "HEAD")==0; - // must be last in PTRY{}PCATCH -#ifdef WIN32 - SetUnhandledExceptionFilter(0); -#endif - // successful finish - return 0; - } PCATCH(e) { // global problem - // must be first in PCATCH{} -#ifdef WIN32 - SetUnhandledExceptionFilter(0); -#endif + try { // global try + call_real_parser_handler__do_SEH( + 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(); - // log it - SAPI::log(pool, "exception in request exception handler: %s", body); - - // - int content_length=strlen(body); - - // prepare header - SAPI::add_header_attribute(pool, "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); - - // send header - SAPI::send_header(pool); - - // body - if(!header_only) - SAPI::send_body(pool, body, content_length); - - // unsuccessful finish - return 1; + SAPI::die("exception in request exception handler: %s", e.comment()); +#ifndef _DEBUG + } catch(...) { + SAPI::die(""); +#endif } - PEND_CATCH + + +#ifndef WIN32 + // + if(!cgi) + SAPI::send_body(*pool, "\n", 1); +#endif +//_asm int 3; + return 0; }