--- parser3/src/targets/isapi/parser3isapi.C 2001/04/10 10:32:13 1.28 +++ parser3/src/targets/isapi/parser3isapi.C 2002/06/11 12:20:42 1.72 @@ -1,11 +1,17 @@ +/** @file + Parser: IIS extension. + + Copyright (c) 2000,2001, 2002 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) + + $Id: parser3isapi.C,v 1.72 2002/06/11 12:20:42 paf Exp $ +*/ + #ifndef _MSC_VER # error compile ISAPI module with MSVC [no urge for now to make it autoconf-ed (PAF)] #endif -#include -#include - -#include +#include "pa_config_includes.h" #include "pa_sapi.h" #include "pa_globals.h" @@ -14,38 +20,84 @@ #include "pool_storage.h" #include "pa_socks.h" +#include +#include +#include + +#include + #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[]; +const char **RCSIds[]={ + main_RCSIds, +#ifdef USE_SMTP + smtp_RCSIds, +#endif + gd_RCSIds, + classes_RCSIds, + types_RCSIds, + parser3isapi_RCSIds, + 0 +}; + +// globals + +char argv0[MAX_STRING]=""; + // 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 // 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, ...) { + if(FILE *log=fopen("c:\\die.log", "at")) { + va_list args; + va_start(args,fmt); + vfprintf(log, fmt, args); + fclose(log); + } + 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; @@ -67,8 +119,70 @@ const char *SAPI::get_env(Pool& pool, co return 0; } +static int grep_char(const char *s, char c) { + int result=0; + if(s) { + while(s=strchr(s, c)) { + s++; // skip found c + result++; + } + } + return result; +} +static const char *mk_env_pair(Pool& pool, const char *key, const char *value) { + char *result=(char *)pool.malloc(strlen(key)+1/*=*/+strlen(value)+1/*0*/); + strcpy(result, key); strcat(result, "="); strcat(result, value); + return result; +} +const char *const *SAPI::environment(Pool& pool) { + const char *IIS51vars[]={ + "APPL_MD_PATH", "APPL_PHYSICAL_PATH", + "AUTH_PASSWORD", "AUTH_TYPE", "AUTH_USER", + "CERT_COOKIE", "CERT_FLAGS", "CERT_ISSUER", "CERT_KEYSIZE", "CERT_SECRETKEYSIZE", + "CERT_SERIALNUMBER", "CERT_SERVER_ISSUER", "CERT_SERVER_SUBJECT", "CERT_SUBJECT", + "CONTENT_LENGTH", "CONTENT_TYPE", + "LOGON_USER", + "HTTPS", "HTTPS_KEYSIZE", "HTTPS_SECRETKEYSIZE", "HTTPS_SERVER_ISSUER", "HTTPS_SERVER_SUBJECT", + "INSTANCE_ID", "INSTANCE_META_PATH", + "PATH_INFO", "PATH_TRANSLATED", + "QUERY_STRING", + "REMOTE_ADDR", "REMOTE_HOST", "REMOTE_USER", "REQUEST_METHOD", + "SCRIPT_NAME", + "SERVER_NAME", "SERVER_PORT", "SERVER_PORT_SECURE", "SERVER_PROTOCOL", "SERVER_SOFTWARE", + "URL", + }; + const int IIS51var_count=sizeof(IIS51vars)/sizeof(*IIS51vars); + + // we know this buf is writable + char *all_http_vars=const_cast(SAPI::get_env(pool, "ALL_HTTP")); + const int http_var_count=grep_char(all_http_vars, '\n')+1/*\n for theoretical(never saw) this \0*/; + + const char **result= + (const char **)pool.malloc(sizeof(char *)*(IIS51var_count+http_var_count+1/*0*/)); + const char **cur=result; + + // IIS5.1 vars + for(int i=0; i(pool.context()); + SAPI_func_context& ctx=*static_cast(pool.get_context()); DWORD read_from_buf=0; DWORD read_from_input=0; @@ -98,7 +212,7 @@ 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; @@ -109,17 +223,14 @@ void SAPI::add_header_attribute(Pool& po ctx.header->APPEND_CONST(key); ctx.header->APPEND_CONST(": "); ctx.header->APPEND_CONST(value); - ctx.header->APPEND_CONST("\n"); + ctx.header->APPEND_CONST("\r\n"); } } /// @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( - "expires: Fri, 23 Mar 2001 09:32:23 GMT\n" - "\n"); HSE_SEND_HEADER_EX_INFO header_info; char status_buf[MAX_STATUS_LENGTH]; @@ -140,6 +251,7 @@ void SAPI::send_header(Pool& pool) { break; } header_info.cchStatus=strlen(header_info.pszStatus); + *ctx.header << "\r\n"; // ISAPI v<5 did quite well without it header_info.pszHeader=ctx.header->cstr(); header_info.cchHeader=ctx.header->size(); header_info.fKeepConn=true; @@ -151,7 +263,7 @@ 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, @@ -160,35 +272,50 @@ 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 +} + +#ifdef _DEBUG +static Pool_storage *global_pool_storagep; +#endif static bool parser_init() { static bool globals_inited=false; if(globals_inited) return true; globals_inited=true; - static Pool pool(0); // global pool - PTRY { + _set_new_handler(failed_new); + + static Pool_storage pool_storage; +#ifdef _DEBUG + global_pool_storagep=&pool_storage; +#endif + static Pool pool(&pool_storage); // global pool + try { // init socks init_socks(pool); - + // init global classes + init_methoded_array(pool); // init global variables pa_globals_init(pool); - + // 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(); } @@ -200,86 +327,141 @@ 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 */ -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 - }; - pool.set_context(&ctx);// no allocations before this line! + +void real_parser_handler(Pool& pool, LPEXTENSION_CONTROL_BLOCK lpECB, bool header_only) { + static_cast(pool.get_context())->header=new(pool) String(pool); - bool header_only=strcasecmp(lpECB->lpszMethod, "HEAD")==0; - PTRY { // global try - ctx.header=new(pool) String(pool); - - // Request info - Request::Info request_info; + // 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); + 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); + 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 - PTHROW(0, 0, - 0, - "ISAPI: no PATH_INFO defined (in reinventing DOCUMENT_ROOT)"); + 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("parser.runtime", + 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.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_HTML|String::UL_OPTIMIZE_BIT, +#ifdef _DEBUG + true +#else + false +#endif + /* 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); + + // beside by binary + static char site_config_path[MAX_STRING]; + strncpy(site_config_path, argv0, MAX_STRING-1); site_config_path[MAX_STRING-1]=0; // filespec of my binary + if(!( + rsplit(site_config_path, '/') || + rsplit(site_config_path, '\\'))) { // strip filename + // no path, just filename + site_config_path[0]='.'; site_config_path[1]=0; + } + char site_config_filespec[MAX_STRING]; + snprintf(site_config_filespec, MAX_STRING, + "%s/%s", + site_config_path, CONFIG_FILE_NAME); + + // process the request + request.core( + root_config_filespec, false /*fail_on_read_problem*/, // /path/to/root/parser3.conf + site_config_filespec, false /*fail_on_read_problem*/, // /path/to/site/parser3.conf + 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) { - // prepare to process request - Request request(pool, - request_info, - String::UL_HTML_TYPO - ); - - // 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); + 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 +} + +inline DWORD RealHttpExtensionProc(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 // default http_response_code + }; + pool.set_context(&ctx);// no allocations before this line! + + 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 + // 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); @@ -290,10 +472,10 @@ DWORD WINAPI HttpExtensionProc(LPEXTENSI // prepare header // not using SAPI func wich allocates on pool char header_buf[MAX_STRING]; int header_len=snprintf(header_buf, MAX_STRING, - "content-type: text/plain\n" - "content-length: %lu\n" - "expires: Fri, 23 Mar 2001 09:32:23 GMT\n" - "\n", + "content-type: text/plain\r\n" + "content-length: %lu\r\n" +// "expires: Fri, 23 Mar 2001 09:32:23 GMT\r\n" + "\r\n", content_length); HSE_SEND_HEADER_EX_INFO header_info; @@ -314,7 +496,80 @@ DWORD WINAPI HttpExtensionProc(LPEXTENSI // unsuccessful finish } - PEND_CATCH - +/* + const char *body="test"; + + // + int content_length=strlen(body); + + // prepare header // not using SAPI func wich allocates on pool + char header_buf[MAX_STRING]; + int header_len=snprintf(header_buf, MAX_STRING, + "content-type: text/plain\r\n" + "content-length: %lu\r\n" + "expires: Fri, 23 Mar 2001 09:32:23 GMT\r\n" + "\r\n", + content_length); + HSE_SEND_HEADER_EX_INFO header_info; + header_info.pszStatus="200 OK"; + header_info.cchStatus=strlen(header_info.pszStatus); + header_info.pszHeader=header_buf; + header_info.cchHeader=header_len; + header_info.fKeepConn=true; + + // send header + lpECB->dwHttpStatusCode=200; + lpECB->ServerSupportFunction(lpECB->ConnID, + HSE_REQ_SEND_RESPONSE_HEADER_EX, &header_info, NULL, NULL); + + // send body + DWORD num_bytes=content_length; + lpECB->WriteClient(lpECB->ConnID, + (void *)body, &num_bytes, HSE_IO_SYNC); +*/ return HSE_STATUS_SUCCESS_AND_KEEP_CONN; } + +#ifdef _DEBUG +//for memory leaks detection only +#undef _WINDOWS_ +#include +#endif +DWORD WINAPI HttpExtensionProc(LPEXTENSION_CONTROL_BLOCK lpECB) { +// Declare the variables needed +#ifdef _DEBUG +// _crtBreakAlloc=97779;//97777; //997; + + CMemoryState oldMemState, newMemState, diffMemState; + oldMemState.Checkpoint(); + //global_pool_storagep->fbreak_on_alloc=true; +#endif + + DWORD result=RealHttpExtensionProc(lpECB); + +#ifdef _DEBUG + newMemState.Checkpoint(); + if( diffMemState.Difference( oldMemState, newMemState ) ) + { + TRACE( "Memory leaked!\n" ); + diffMemState.DumpStatistics( ); + diffMemState.DumpAllObjectsSince(); + } +#endif + return result; +} + +BOOL WINAPI DllMain( + HINSTANCE hinstDLL, // handle to the DLL module + DWORD fdwReason, // reason for calling function + LPVOID lpvReserved // reserved + ) { + + GetModuleFileName( + hinstDLL, // handle to module + argv0, // file name of module + sizeof(argv0) // size of buffer + ); + + return TRUE; +} \ No newline at end of file