--- parser3/src/targets/isapi/parser3isapi.C 2001/06/28 07:44:17 1.35 +++ parser3/src/targets/isapi/parser3isapi.C 2002/02/08 08:30:18 1.63 @@ -1,18 +1,21 @@ /** @file Parser: IIS extension. - Copyright (c) 2000,2001 ArtLebedev Group (http://www.artlebedev.com) + Copyright (c) 2000,2001, 2002 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) - Author: Alexander Petrosyan (http://design.ru/paf) + $Id: parser3isapi.C,v 1.63 2002/02/08 08:30:18 paf Exp $ */ -static const char *RCSId="$Id: parser3isapi.C,v 1.35 2001/06/28 07:44:17 parser Exp $"; #ifndef _MSC_VER # error compile ISAPI module with MSVC [no urge for now to make it autoconf-ed (PAF)] #endif +#include "pa_config_includes.h" + #include #include +#include #include @@ -23,38 +26,96 @@ static const char *RCSId="$Id: parser3is #include "pool_storage.h" #include "pa_socks.h" +#ifdef XML +#include +#endif + #define MAX_STATUS_LENGTH sizeof("xxxx LONGEST STATUS DESCRIPTION") +// consts + +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 *parser3isapi_RCSIds[]; +#ifdef XML +extern const char *xalan_patched_RCSIds[]; +#endif +const char **RCSIds[]={ + main_RCSIds, +#ifdef USE_SMTP + smtp_RCSIds, +#endif + gd_RCSIds, + classes_RCSIds, + types_RCSIds, + parser3isapi_RCSIds, +#ifdef XML + xalan_patched_RCSIds, +#endif + 0 +}; + // SAPI -/** +#ifndef DOXYGEN +/* ISAPI SAPI functions receive this context information. - - @see Pool::set_context + see Pool::set_context */ struct SAPI_func_context { LPEXTENSION_CONTROL_BLOCK lpECB; String *header; DWORD http_response_code; }; +#endif + +#ifdef XML +/** + * Terminate Xalan and Xerces. + * + * Should be called only once per process after deleting all + * instances of XalanTransformer. Once a process has called + * this function, it cannot use the API for the remaining + * lifetime of the process. + + + this requirement is fullfilled by using Pool::register_cleanup + */ +void callXalanTerminate(void *) { + //_asm int 3; + XalanTerminate(); +} +#endif // goes to 'cs-uri-query' log file field. webmaster: switch it ON[default OFF]. void SAPI::log(Pool& pool, const char *fmt, ...) { - SAPI_func_context& ctx=*static_cast(pool.context()); + SAPI_func_context& ctx=*static_cast(pool.get_context()); va_list args; va_start(args,fmt); char buf[MAX_STRING]; const char *prefix="PARSER_ERROR:"; strcpy(buf, prefix); - DWORD size=vsnprintf(buf+strlen(prefix), MAX_STRING-strlen(prefix), fmt, args); - + char *start=buf+strlen(prefix); + DWORD size=vsnprintf(start, MAX_STRING-strlen(prefix), fmt, args); + remove_crlf(start, start+size); + ctx.lpECB->ServerSupportFunction(ctx.lpECB->ConnID, HSE_APPEND_LOG_PARAMETER, buf, &size, 0); } +/// @todo event log +void SAPI::die(const char *fmt, ...) { + exit(1); +} + const char *SAPI::get_env(Pool& pool, const char *name) { - SAPI_func_context& ctx=*static_cast(pool.context()); + SAPI_func_context& ctx=*static_cast(pool.get_context()); char *variable_buf=(char *)pool.malloc(MAX_STRING); DWORD variable_len = MAX_STRING-1; @@ -77,7 +138,7 @@ const char *SAPI::get_env(Pool& pool, co } size_t SAPI::read_post(Pool& pool, char *buf, size_t max_bytes) { - SAPI_func_context& ctx=*static_cast(pool.context()); + SAPI_func_context& ctx=*static_cast(pool.get_context()); DWORD read_from_buf=0; DWORD read_from_input=0; @@ -107,7 +168,7 @@ size_t SAPI::read_post(Pool& pool, char } void SAPI::add_header_attribute(Pool& pool, const char *key, const char *value) { - SAPI_func_context& ctx=*static_cast(pool.context()); + SAPI_func_context& ctx=*static_cast(pool.get_context()); if(strcasecmp(key, "location")==0) ctx.http_response_code=302; @@ -124,12 +185,12 @@ void SAPI::add_header_attribute(Pool& po /// @todo intelligent cache-control void SAPI::send_header(Pool& pool) { - SAPI_func_context& ctx=*static_cast(pool.context()); + SAPI_func_context& ctx=*static_cast(pool.get_context()); - ctx.header->APPEND_CONST( +/* ctx.header->APPEND_CONST( "expires: Fri, 23 Mar 2001 09:32:23 GMT\r\n" "\r\n"); - HSE_SEND_HEADER_EX_INFO header_info; +*/ HSE_SEND_HEADER_EX_INFO header_info; char status_buf[MAX_STATUS_LENGTH]; switch(ctx.http_response_code) { @@ -160,7 +221,7 @@ void SAPI::send_header(Pool& pool) { } void SAPI::send_body(Pool& pool, const void *buf, size_t size) { - SAPI_func_context& ctx=*static_cast(pool.context()); + SAPI_func_context& ctx=*static_cast(pool.get_context()); DWORD num_bytes=size; ctx.lpECB->WriteClient(ctx.lpECB->ConnID, @@ -169,17 +230,36 @@ void SAPI::send_body(Pool& pool, const v // +int failed_new(size_t size) { + SAPI::die("out of memory in 'new', failed to allocated %u bytes", size); + return 0; // not reached +} + static bool parser_init() { static bool globals_inited=false; if(globals_inited) return true; globals_inited=true; + _set_new_handler(failed_new); + static Pool pool(0); // global pool - PTRY { + try { // init socks init_socks(pool); +#ifdef XML + /** + * Initialize Xerces and Xalan. + * + * Should be called only once per process before making + * any other API calls. + */ + //_asm int 3; + XalanInitialize(); + pool.register_cleanup(callXalanTerminate, 0); +#endif + // init global classes init_methoded_array(pool); // init global variables @@ -187,19 +267,19 @@ static bool parser_init() { // successful finish return true; - } PCATCH(e) { // global problem - //const char *body=e.comment(); + } catch(const Exception& e) { // global problem + const char *body=e.comment(); // unsuccessful finish return false; } - PEND_CATCH } /// ISAPI // BOOL WINAPI GetExtensionVersion(HSE_VERSION_INFO *pVer) { pVer->dwExtensionVersion = HSE_VERSION; - strncpy(pVer->lpszExtensionDesc, "Parser "PARSER_VERSION, HSE_MAX_EXT_DLL_NAME_LEN); + strncpy(pVer->lpszExtensionDesc, "Parser "PARSER_VERSION, HSE_MAX_EXT_DLL_NAME_LEN-1); + pVer->lpszExtensionDesc[HSE_MAX_EXT_DLL_NAME_LEN-1]=0; return parser_init(); } @@ -211,83 +291,134 @@ BOOL WINAPI GetExtensionVersion(HSE_VERS to do that we need to consult metabase, wich is tested&works but seems slow runtime and not could-be-quickly-implemented if prepared. + @test + PARSER_VERSION from outside */ + +void real_parser_handler(Pool& pool, LPEXTENSION_CONTROL_BLOCK lpECB, bool header_only) { + static_cast(pool.get_context())->header=new(pool) String(pool); + + // Request info + Request::Info request_info; + + size_t path_translated_buf_size=strlen(lpECB->lpszPathTranslated)+1; + char *filespec_to_process=(char *)pool.malloc(path_translated_buf_size); + memcpy(filespec_to_process, lpECB->lpszPathTranslated, path_translated_buf_size); +#ifdef WIN32 + back_slashes_to_slashes(filespec_to_process); +#endif + + 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 + throw Exception(0, 0, + 0, + "ISAPI: no PATH_INFO defined (in reinventing DOCUMENT_ROOT)"); + + request_info.path_translated=filespec_to_process; + request_info.method=lpECB->lpszMethod; + request_info.query_string=lpECB->lpszQueryString; + if(lpECB->lpszQueryString && *lpECB->lpszQueryString) { + char *reconstructed_uri=(char *)pool.malloc( + strlen(lpECB->lpszPathInfo)+1/*'?'*/+ + strlen(lpECB->lpszQueryString)+1/*0*/); + strcpy(reconstructed_uri, lpECB->lpszPathInfo); + strcat(reconstructed_uri, "?"); + strcat(reconstructed_uri, lpECB->lpszQueryString); + request_info.uri=reconstructed_uri; + } else + request_info.uri=lpECB->lpszPathInfo; + + request_info.content_type=lpECB->lpszContentType; + request_info.content_length=lpECB->cbTotalBytes; + 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, + String::UL_HTML|String::UL_OPTIMIZE_BIT, + false /* status_allowed */); + + // some root-controlled location + // c:\windows + char root_config_path[MAX_STRING]; + GetWindowsDirectory(root_config_path, MAX_STRING); + // must be dynamic: rethrowing from request.core + // may return 'source' which can be inside of 'root auto.p@exeception' + char *root_config_filespec=(char *)pool.malloc(MAX_STRING); + snprintf(root_config_filespec, MAX_STRING, + "%s/%s", + root_config_path, CONFIG_FILE_NAME); + + // process the request + request.core( + root_config_filespec, false/*may be abcent*/, // /path/to/admin/auto.p + 0/*parser_site_auto_path*/, false, // /path/to/site/auto.p + header_only); +} + +void call_real_parser_handler__do_SEH(Pool& pool, + LPEXTENSION_CONTROL_BLOCK lpECB, + bool header_only) { +#if _MSC_VER & !defined(_DEBUG) + LPEXCEPTION_POINTERS system_exception=0; + __try { +#endif + real_parser_handler(pool, lpECB, 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, + 0, + "Exception 0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress); + else + throw Exception(0, 0, 0, "Exception "); + else + throw Exception(0, 0, 0, "Exception "); + } +#endif +} + + DWORD WINAPI HttpExtensionProc(LPEXTENSION_CONTROL_BLOCK lpECB) { Pool_storage pool_storage; Pool pool(&pool_storage); // no allocations until assigned context [for reporting] SAPI_func_context ctx={ lpECB, 0, // filling later: so that if there would be error pool would have ctx - 200 + 200 // default http_response_code }; pool.set_context(&ctx);// no allocations before this line! - bool header_only=strcasecmp(lpECB->lpszMethod, "HEAD")==0; - PTRY { // global try - ctx.header=new(pool) String(pool); - - // Request info - Request::Info request_info; - - size_t path_translated_buf_size=strlen(lpECB->lpszPathTranslated)+1; - char *filespec_to_process=(char *)malloc(path_translated_buf_size); - memcpy(filespec_to_process, lpECB->lpszPathTranslated, path_translated_buf_size); -#ifdef WIN32 - back_slashes_to_slashes(filespec_to_process); +#ifdef XML + /** + * Initialize Xerces and Xalan. + * + * Should be called only once per process before making + * any other API calls. + */ + //_asm int 3; + XalanInitialize(); + pool.register_cleanup(callXalanTerminate, 0); #endif - 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, - "ISAPI: no PATH_INFO defined (in reinventing DOCUMENT_ROOT)"); - request_info.path_translated=filespec_to_process; - request_info.method=lpECB->lpszMethod; - request_info.query_string=lpECB->lpszQueryString; - if(lpECB->lpszQueryString && *lpECB->lpszQueryString) { - char *reconstructed_uri=(char *)malloc( - strlen(lpECB->lpszPathInfo)+1/*'?'*/+ - strlen(lpECB->lpszQueryString)+1/*0*/); - strcpy(reconstructed_uri, lpECB->lpszPathInfo); - strcat(reconstructed_uri, "?"); - strcat(reconstructed_uri, lpECB->lpszQueryString); - request_info.uri=reconstructed_uri; - } else - request_info.uri=lpECB->lpszPathInfo; - - request_info.content_type=lpECB->lpszContentType; - request_info.content_length=lpECB->cbTotalBytes; - 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, - String::UL_USER_HTML - ); - - // some root-controlled location - // c:\windows - // must be dynamic: rethrowing from request.core - // may return 'source' which can be inside of 'root auto.p@exeception' - char *root_auto_path=(char *)pool.malloc(MAX_STRING); - GetWindowsDirectory(root_auto_path, MAX_STRING); - - // process the request - request.core( - root_auto_path, false/*may be abcent*/, // /path/to/admin/auto.p - 0/*parser_site_auto_path*/, false, // /path/to/site/auto.p - header_only); + bool header_only=strcasecmp(lpECB->lpszMethod, "HEAD")==0; + try { // global try + call_real_parser_handler__do_SEH(pool, lpECB, header_only); // successful finish - } PCATCH(e) { // global problem + } 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 @@ -325,7 +456,6 @@ DWORD WINAPI HttpExtensionProc(LPEXTENSI // unsuccessful finish } - PEND_CATCH return HSE_STATUS_SUCCESS_AND_KEEP_CONN; }