Annotation of parser3/src/targets/cgi/parser3.C, revision 1.359
1.27 paf 1: /** @file
2: Parser: scripting and CGI main.
3:
1.356 moko 4: Copyright (c) 2001-2024 Art. Lebedev Studio (http://www.artlebedev.com)
1.350 moko 5: Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>
1.189 paf 6: */
1.27 paf 7:
1.359 ! moko 8: volatile const char * IDENT_PARSER3_C="$Id: parser3.C,v 1.358 2024/11/09 15:38:21 moko Exp $";
1.1 paf 9:
1.40 paf 10: #include "pa_config_includes.h"
1.3 paf 11:
1.37 paf 12: #include "pa_sapi.h"
1.76 paf 13: #include "classes.h"
1.24 paf 14: #include "pa_common.h"
1.2 paf 15: #include "pa_request.h"
1.68 paf 16: #include "pa_version.h"
1.333 moko 17: #include "pa_threads.h"
1.266 moko 18: #include "pa_vconsole.h"
1.294 moko 19: #include "pa_sapi_info.h"
1.207 paf 20:
1.263 moko 21: #ifdef _MSC_VER
1.264 moko 22: #include <crtdbg.h>
1.263 moko 23: #include <windows.h>
24: #include <direct.h>
1.328 moko 25:
26: extern "C" HANDLE WINAPI GC_CreateThread(LPSECURITY_ATTRIBUTES, DWORD, LPTHREAD_START_ROUTINE, LPVOID, DWORD, LPDWORD);
27:
28: #else
29:
30: extern "C" int GC_pthread_create(pthread_t *, const pthread_attr_t *, void *(*)(void *), void * /* arg */);
31:
1.120 parser 32: #endif
33:
1.232 paf 34: // defines
1.231 paf 35:
1.233 paf 36: // comment remove me after debugging
1.288 moko 37: //#define PA_DEBUG_CGI_ENTRY_EXIT "parser3-debug.log"
1.233 paf 38:
1.278 moko 39: #if defined(_MSC_VER) && !defined(_DEBUG)
1.231 paf 40: # define PA_SUPPRESS_SYSTEM_EXCEPTION
41: #endif
42:
1.109 parser 43: // consts
1.84 parser 44:
1.175 paf 45: #define REDIRECT_PREFIX "REDIRECT_"
1.181 paf 46: #define PARSER_CONFIG_ENV_NAME "CGI_PARSER_CONFIG"
1.226 paf 47: #define PARSER_LOG_ENV_NAME "CGI_PARSER_LOG"
1.159 paf 48:
1.358 moko 49: SAPI_Info sapi_console;
50: SAPI_Info_CGI sapi_cgi;
51:
52: static SAPI_Info *sapi_info = &sapi_cgi;
53: static THREAD_LOCAL SAPI_Info *sapi_info_4log = NULL; // global for correct send error in die()
1.357 moko 54:
1.316 moko 55: static const char* filespec_to_process = 0; // [file]
56: static const char* httpd_host_port = 0; // -p option
1.319 moko 57: static const char* config_filespec = 0; // -f option or from env or next to the executable if exists
1.316 moko 58: static bool mail_received = false; // -m option? [asked to parse incoming message to $mail:received]
1.347 moko 59: static const char* parser3_filespec = 0; // argv[0]
1.319 moko 60: static char** argv_extra = NULL;
1.245 misha 61:
1.317 moko 62: // for error logging
1.341 moko 63: static THREAD_LOCAL Request_info *request_info_4log = NULL; // global for correct log() reporting
1.322 moko 64: static const char* filespec_4log = NULL; // null only if system-wide auto.p used
1.201 paf 65:
1.352 moko 66: template <typename T> static T *dir_pos(T *fname){
67: T *result=NULL;
1.353 moko 68: while (fname=strpbrk(fname, "/\\")){
69: result=fname;
70: fname++;
1.352 moko 71: }
1.353 moko 72: return result;
1.352 moko 73: }
74:
1.46 paf 75: // SAPI
1.86 parser 76:
1.335 moko 77: static void pa_log(const char* fmt, va_list args) {
1.193 paf 78: bool opened=false;
1.61 paf 79: FILE *f=0;
80:
1.226 paf 81: const char* log_by_env=getenv(PARSER_LOG_ENV_NAME);
82: if(!log_by_env)
83: log_by_env=getenv(REDIRECT_PREFIX PARSER_LOG_ENV_NAME);
84: if(log_by_env) {
85: f=fopen(log_by_env, "at");
86: opened=f!=0;
87: }
1.272 moko 88: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.233 paf 89: f=fopen(PA_DEBUG_CGI_ENTRY_EXIT, "at");
90: opened=f!=0;
91: #endif
1.226 paf 92:
1.316 moko 93: if(!opened && filespec_4log) {
1.352 moko 94: char log_spec[MAX_STRING + 12 /* '/parser3.log' */];
95: pa_strncpy(log_spec, filespec_4log, MAX_STRING);
96:
1.354 moko 97: if(char* log_dir_pos=dir_pos(log_spec)){
1.352 moko 98: strcpy(log_dir_pos, "/parser3.log");
99: } else {
1.193 paf 100: // no path, just filename
1.352 moko 101: strcpy(log_spec, "./parser3.log");
1.193 paf 102: }
103:
1.352 moko 104: f=fopen(log_spec, "at");
1.193 paf 105: opened=f!=0;
106: }
1.192 paf 107: // fallback to stderr
1.61 paf 108: if(!opened)
109: f=stderr;
1.208 paf 110:
111: // use no memory [so that we could log out-of-memory error]
112: setbuf(f, 0); // stderr stream is unbuffered by default, but still...
1.61 paf 113:
114: // prefix
115: time_t t=time(0);
1.218 paf 116: if(const char* stamp=ctime(&t)) { // never saw that
1.173 paf 117: if(size_t len=strlen(stamp)) // saw once stamp being =""
1.333 moko 118: fprintf(f, "[%.*s] [%u] ", (int)len-1, stamp, (unsigned int)pa_get_thread_id() );
1.171 paf 119: }
1.61 paf 120: // message
1.117 parser 121:
1.246 misha 122: char buf[MAX_LOG_STRING];
123: size_t size=vsnprintf(buf, MAX_LOG_STRING, fmt, args);
124: size=remove_crlf(buf, buf+size);
1.239 paf 125: fwrite(buf, size, 1, f);
126:
1.341 moko 127: if(request_info_4log && request_info_4log->method) {
128: fprintf(f, " [uri=%s, method=%s, cl=%lu]\n", request_info_4log->uri ? request_info_4log->uri : "<unknown>", request_info_4log->method, (unsigned long)request_info_4log->content_length);
1.297 moko 129: } else
130: fputs(" [no request info]\n", f);
1.61 paf 131:
132: if(opened)
133: fclose(f);
1.85 parser 134: else
135: fflush(f);
1.124 parser 136: }
1.272 moko 137:
1.335 moko 138: void pa_log(const char* fmt, ...) {
1.272 moko 139: va_list args;
1.233 paf 140: va_start(args,fmt);
1.335 moko 141: pa_log(fmt, args);
1.233 paf 142: va_end(args);
143: }
1.124 parser 144:
1.322 moko 145: // appends to parser3.log located next to the config file if openable, to stderr otherwize
1.218 paf 146: void SAPI::log(SAPI_Info&, const char* fmt, ...) {
1.272 moko 147: va_list args;
1.124 parser 148: va_start(args,fmt);
1.335 moko 149: pa_log(fmt, args);
1.124 parser 150: va_end(args);
151: }
152:
1.290 moko 153: void SAPI::die(const char* fmt, ...) {
154: va_list args;
155:
156: // logging first, first vsnprintf
157: va_start(args,fmt);
1.335 moko 158: pa_log(fmt, args);
1.290 moko 159: va_end(args);
1.138 paf 160:
1.290 moko 161: // inform user, second vsnprintf
162: va_start(args, fmt);
1.299 moko 163: char message[MAX_STRING];
1.300 moko 164: vsnprintf(message, MAX_STRING, fmt, args);
1.134 paf 165:
1.358 moko 166: SAPI::send_error(sapi_info_4log ? *sapi_info_4log : *sapi_info, message);
1.290 moko 167: exit(1);
1.258 moko 168: // va_end(args);
1.28 paf 169: }
170:
1.358 moko 171: void SAPI::send_error(SAPI_Info& info, const char *exception_cstr, const char *status){
172: info.send_error(exception_cstr, status);
173: }
174:
1.294 moko 175: char* SAPI::Env::get(SAPI_Info& info, const char* name) {
176: return info.get_env(name);
1.218 paf 177: }
178:
1.305 moko 179: bool SAPI::Env::set(SAPI_Info& info, const char* name, const char* value) {
180: return info.set_env(name, value);
181: }
182:
1.294 moko 183: const char* const *SAPI::Env::get(SAPI_Info& info) {
184: return info.get_env();
1.180 paf 185: }
186:
1.354 moko 187: size_t SAPI::read_post(SAPI_Info& info, char* buf, size_t max_bytes) {
1.294 moko 188: return info.read_post(buf, max_bytes);
1.10 paf 189: }
190:
1.294 moko 191: void SAPI::add_header_attribute(SAPI_Info& info, const char* dont_store_key, const char* dont_store_value) {
1.358 moko 192: info.add_header(dont_store_key, dont_store_value);
1.19 paf 193: }
194:
1.294 moko 195: void SAPI::send_header(SAPI_Info& info) {
1.358 moko 196: info.send_headers();
1.30 paf 197: }
1.20 paf 198:
1.294 moko 199: size_t SAPI::send_body(SAPI_Info& info, const void *buf, size_t size) {
200: return info.send_body(buf, size);
1.58 paf 201: }
202:
1.354 moko 203: static const char* full_disk_path(const char* file_name = "") {
204: char* result;
1.351 moko 205: if(file_name[0]=='/'
1.167 paf 206: #ifdef WIN32
1.308 moko 207: || file_name[0] && file_name[1]==':'
1.167 paf 208: #endif
1.308 moko 209: ){
1.351 moko 210: result=pa_strdup(file_name);
1.308 moko 211: } else {
212: char cwd[MAX_STRING];
1.351 moko 213: result=pa_strcat(getcwd(cwd, MAX_STRING) ? cwd : "", "/", file_name);
1.308 moko 214: }
1.166 paf 215: #ifdef WIN32
1.351 moko 216: back_slashes_to_slashes(result);
1.166 paf 217: #endif
1.351 moko 218: return result;
1.97 parser 219: }
220:
1.218 paf 221: static void log_signal(const char* signal_name) {
1.358 moko 222: pa_log("%s received %s processing request", signal_name, request ? "while" : "before or after");
1.205 paf 223: }
224:
1.201 paf 225: #ifdef SIGPIPE
1.243 misha 226: #define SIGPIPE_NAME "SIGPIPE"
227: static const String sigpipe_name(SIGPIPE_NAME);
1.205 paf 228: static void SIGPIPE_handler(int /*sig*/){
1.243 misha 229: Value* sigpipe=0;
230: if(request)
1.251 misha 231: sigpipe=request->main_class.get_element(sigpipe_name);
1.243 misha 232: if(sigpipe && sigpipe->as_bool())
1.244 misha 233: log_signal(SIGPIPE_NAME);
1.243 misha 234:
1.201 paf 235: if(request)
1.276 moko 236: request->set_skip(Request::SKIP_INTERRUPTED);
1.201 paf 237: }
238: #endif
239:
1.322 moko 240: // requires pa_thread_request() in entry_exists() under Windows
1.354 moko 241: static const char* locate_config(const char* config_filespec_option, const char* executable_path){
1.322 moko 242: filespec_4log=config_filespec_option;
243: if(!filespec_4log)
1.321 moko 244: filespec_4log=getenv(PARSER_CONFIG_ENV_NAME);
1.322 moko 245: if(!filespec_4log)
246: filespec_4log=getenv(REDIRECT_PREFIX PARSER_CONFIG_ENV_NAME);
247: if(!filespec_4log){
1.354 moko 248: const char* exec_dir_pos = dir_pos(executable_path);
1.322 moko 249: #ifdef SYSTEM_CONFIG_FILE
1.353 moko 250: if(exec_dir_pos){
251: #endif
252: // next to the executable
253: if(!exec_dir_pos || (exec_dir_pos==executable_path+1 && *executable_path=='.')){
1.355 moko 254: // when just parser3 or ./parser3 full path should be used to avoid "parser already configured"
1.353 moko 255: filespec_4log=full_disk_path(AUTO_FILE_NAME);
256: } else {
257: filespec_4log=pa_strcat(pa_strdup(executable_path, exec_dir_pos - executable_path), "/" AUTO_FILE_NAME);
258: }
259: if(entry_exists(filespec_4log))
260: return filespec_4log;
261: #ifdef SYSTEM_CONFIG_FILE
262: }
1.322 moko 263: if(entry_exists(SYSTEM_CONFIG_FILE)){
264: filespec_4log=NULL;
265: return SYSTEM_CONFIG_FILE;
266: }
267: #endif
268: return NULL;
1.321 moko 269: }
270: return filespec_4log;
271: }
272:
1.227 paf 273: #ifdef WIN32
1.354 moko 274: static const char* maybe_reconstruct_IIS_status_in_qs(const char* original) {
1.228 paf 275: // 404;http://servername/page[?param=value...]
1.227 paf 276: // ';' should be urlencoded by HTTP standard, so we shouldn't get it from browser
277: // and can consider that as an indication that this is IIS way to report errors
278:
1.272 moko 279: if(original && isdigit((unsigned char)original[0]) && isdigit((unsigned char)original[1]) && isdigit((unsigned char)original[2]) && original[3]==';'){
1.227 paf 280: size_t original_len=strlen(original);
1.272 moko 281: char* reconstructed=new(PointerFreeGC) char[original_len +12/*IIS-STATUS=&*/ +14/*IIS-DOCUMENT=&*/ +1];
1.227 paf 282: char* cur=reconstructed;
283: memcpy(cur, "IIS-STATUS=", 11); cur+=11;
284: memcpy(cur, original, 3); cur+=3;
285: *cur++='&';
286:
1.228 paf 287: const char* qmark_at=strchr(original, '?');
1.227 paf 288: memcpy(cur, "IIS-DOCUMENT=", 13); cur+=13;
289: {
1.272 moko 290: size_t value_len=(qmark_at ? qmark_at-original : original_len)-4;
1.227 paf 291: memcpy(cur, original+4, value_len); cur+=value_len;
292: }
293:
294: if(qmark_at) {
295: *cur++='&';
296: strcpy(cur, qmark_at+1/*skip ? itself*/);
297: } else
298: *cur=0;
299:
300: return reconstructed;
301: }
302:
303: return original;
304: }
1.283 moko 305:
1.354 moko 306: static const char* maybe_back_slashes_to_slashes(const char* original){
307: char *result=pa_strdup(original);
308: back_slashes_to_slashes(result);
309: return result;
310: }
311:
1.283 moko 312: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) maybe_reconstruct_IIS_status_in_qs(s)
1.354 moko 313: #define MAYBE_BACK_SLASHES_TO_SLASHES(s) maybe_back_slashes_to_slashes(s)
314:
1.342 moko 315: #else
1.354 moko 316:
1.283 moko 317: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) s
1.354 moko 318: #define MAYBE_BACK_SLASHES_TO_SLASHES(s) s
319:
1.227 paf 320: #endif
321:
1.256 misha 322: class RequestController {
323: public:
324: RequestController(Request* r){
1.341 moko 325: request=r;
1.256 misha 326: }
327: ~RequestController(){
1.341 moko 328: request=0;
329: }
330: };
331:
332: class RequestInfoController {
333: public:
1.358 moko 334: RequestInfoController(Request_info* rinfo, SAPI_Info* sinfo){
1.341 moko 335: request_info_4log=rinfo;
1.358 moko 336: sapi_info_4log=sinfo;
1.341 moko 337: }
338: ~RequestInfoController(){
339: request_info_4log=0;
1.358 moko 340: sapi_info_4log=0;
1.256 misha 341: }
342: };
343:
1.342 moko 344: /** httpd support */
345: static const String httpd_class_name("httpd");
346:
1.317 moko 347: static void config_handler(SAPI_Info &info) {
1.341 moko 348: Request_info request_info;
1.358 moko 349: RequestInfoController ric(&request_info, &info);
1.341 moko 350:
1.351 moko 351: request_info.document_root = full_disk_path();
1.317 moko 352: request_info.uri = "";
1.319 moko 353: request_info.argv = argv_extra;
1.317 moko 354:
355: // prepare to process request
1.323 moko 356: Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT));
1.330 moko 357: // only once
358: config_filespec = locate_config(config_filespec, parser3_filespec);
359: // process main auto.p only
360: r.core(config_filespec, false, String::Empty);
1.317 moko 361: }
362:
363: static void connection_handler(SAPI_Info_HTTPD &info, HTTPD_Connection &connection) {
1.341 moko 364: Request_info request_info;
1.358 moko 365: RequestInfoController ric(&request_info, &info);
1.341 moko 366:
1.325 moko 367: try {
1.336 moko 368: if(!connection.read_header())
1.332 moko 369: return; // ignore "void" connections
1.325 moko 370: info.populate_env();
371:
1.351 moko 372: request_info.document_root = full_disk_path();
1.325 moko 373: request_info.path_translated = filespec_to_process;
374: request_info.method = connection.method();
375: request_info.query_string = connection.query();
376: request_info.uri = request_info.strip_absolute_uri(connection.uri());
377: request_info.content_type = connection.content_type();
378: request_info.content_length = (size_t)connection.content_length();
379: request_info.cookie = info.get_env("HTTP_COOKIE");
380: request_info.mail_received = false;
381: request_info.argv = argv_extra;
1.294 moko 382:
1.325 moko 383: // prepare to process request
384: Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT));
1.330 moko 385: // process the request
1.342 moko 386: r.core(config_filespec, strcasecmp(request_info.method, "HEAD")==0, main_method_name, &httpd_class_name);
1.325 moko 387: } catch(const Exception& e) { // exception in connection handling or unhandled exception
388: SAPI::log(info, "%s", e.comment());
1.354 moko 389: const char* status = info.exception_http_status(e.type());
1.358 moko 390: if(*status)
1.337 moko 391: SAPI::send_error(info, e.comment(), status);
1.325 moko 392: }
393: }
1.317 moko 394:
1.328 moko 395: #ifdef _MSC_VER
396: DWORD WINAPI connection_thread(void *arg){
397: #else
1.325 moko 398: static void *connection_thread(void *arg){
1.328 moko 399: #endif
1.325 moko 400: HTTPD_Connection &connection=*(HTTPD_Connection*)arg;
401: SAPI_Info_HTTPD info(connection);
1.294 moko 402:
1.325 moko 403: try {
404: connection_handler(info, connection);
405: } catch(const Exception& e) { // exception in send_error
1.358 moko 406: pa_log("%s", e.comment());
1.294 moko 407: }
1.325 moko 408:
409: delete(&connection);
1.328 moko 410: return 0;
1.294 moko 411: }
412:
1.317 moko 413: static void httpd_mode() {
1.358 moko 414: config_handler(*sapi_info);
1.325 moko 415:
1.346 moko 416: SOCKET sock = HTTPD_Server::bind(httpd_host_port);
1.294 moko 417:
1.327 moko 418: #ifdef SIGPIPE
1.325 moko 419: signal(SIGPIPE, SIG_IGN);
420: #endif
1.317 moko 421:
1.297 moko 422: while(1){
1.328 moko 423: #ifndef _MSC_VER
1.325 moko 424: pid_t pid=1;
1.343 moko 425: if(HTTPD_Server::mode == HTTPD_Server::PARALLEL)
426: while (waitpid((pid_t)(-1), 0, WNOHANG) > 0);
1.328 moko 427: #endif
1.303 moko 428: try {
429: HTTPD_Connection connection;
1.345 moko 430: if(!connection.accept(sock, 500))
1.303 moko 431: continue;
432:
1.325 moko 433: switch (HTTPD_Server::mode) {
434: case HTTPD_Server::MULTITHREADED:
1.328 moko 435: #ifdef _MSC_VER
436: if (!GC_CreateThread(0, 0, connection_thread, new HTTPD_Connection(connection), 0, 0))
437: throw Exception("httpd.fork", 0, "thread creation failed");
1.346 moko 438: connection.sock=INVALID_SOCKET;
1.328 moko 439: break;
440: #else
1.339 moko 441: #ifdef HAVE_TLS
1.325 moko 442: pthread_t thread;
443: pthread_attr_t attr;
444: pthread_attr_init(&attr);
445: pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
446:
447: if(int result=GC_pthread_create(&thread, &attr, connection_thread, new HTTPD_Connection(connection)))
448: throw Exception("httpd.fork", 0, "thread creation failed (%d)", result);
1.346 moko 449: connection.sock=INVALID_SOCKET;
1.325 moko 450: break;
1.339 moko 451: #endif
1.325 moko 452: case HTTPD_Server::PARALLEL:
453: pid=fork();
454: if(pid<0)
455: throw Exception("httpd.fork", 0, "fork failed: %s (%d)", strerror(errno), errno);
456: if(pid>0)
457: continue; // parent should close connection.sock as well
458: #endif
459: case HTTPD_Server::SEQUENTIAL: // and fork child
1.303 moko 460:
1.325 moko 461: SAPI_Info_HTTPD info(connection);
462: connection_handler(info, connection);
1.303 moko 463: }
464: // closing connection socket in HTTPD_Connection destructor
465: } catch(const Exception& e) { // exception in accept or send_error
1.358 moko 466: pa_log("%s", e.comment());
1.294 moko 467: }
1.325 moko 468:
1.328 moko 469: #ifndef _MSC_VER
1.325 moko 470: if(pid==0) // fork child
471: exit(0);
1.328 moko 472: #endif
1.294 moko 473: }
474: }
1.231 paf 475:
1.294 moko 476: /** main workhorse */
477:
1.316 moko 478: static void real_parser_handler(bool cgi) {
1.280 moko 479: // init libraries
1.218 paf 480: pa_globals_init();
1.294 moko 481:
1.296 moko 482: if(httpd_host_port){
1.308 moko 483: httpd_mode();
1.294 moko 484: }
485:
486: const char* request_method=getenv("REQUEST_METHOD");
487:
1.308 moko 488: if(!filespec_to_process)
1.282 moko 489: SAPI::die("Parser/%s", PARSER_VERSION);
1.122 parser 490:
1.297 moko 491: // global request info
1.341 moko 492: Request_info request_info;
1.358 moko 493: RequestInfoController ric(&request_info, sapi_info);
1.341 moko 494:
1.283 moko 495: request_info.path_translated = filespec_to_process;
496: request_info.method = request_method ? request_method : "GET";
497: request_info.query_string = MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(getenv("QUERY_STRING"));
498:
1.122 parser 499: if(cgi) {
1.284 moko 500: // obligatory
1.218 paf 501: const char* path_info=getenv("PATH_INFO");
1.214 paf 502: if(!path_info)
1.349 moko 503: SAPI::die("parser3: illegal CGI call (missing PATH_INFO)");
1.283 moko 504:
505: request_info.document_root = getenv("DOCUMENT_ROOT");
506: if(!request_info.document_root) {
1.285 moko 507: // IIS or fcgiwrap minimalistic setup
508: ssize_t prefix_len = strlen(filespec_to_process) - strlen(path_info);
509: if(prefix_len < 0 || strcmp(filespec_to_process + prefix_len, path_info) != 0)
1.349 moko 510: SAPI::die("parser3: illegal CGI call (invalid PATH_INFO in reinventing DOCUMENT_ROOT)");
1.285 moko 511:
512: char* document_root = new(PointerFreeGC) char[prefix_len + 1/*0*/];
513: memcpy(document_root, filespec_to_process, prefix_len); document_root[prefix_len] = 0;
514: request_info.document_root = document_root;
1.283 moko 515: }
1.214 paf 516:
1.285 moko 517: request_info.uri = request_info.strip_absolute_uri(getenv("REQUEST_URI"));
1.283 moko 518: if(request_info.uri) { // apache & others stuck to standards
1.284 moko 519: // another obligatory
1.285 moko 520: const char* script_name = getenv("SCRIPT_NAME");
1.284 moko 521: if(!script_name)
1.349 moko 522: SAPI::die("parser3: illegal CGI call (missing SCRIPT_NAME)");
1.214 paf 523: /*
524: http://parser3/env.html?123 =OK
525: $request:uri=/env.html?123
526: REQUEST_URI='/env.html?123'
527: SCRIPT_NAME='/cgi-bin/parser3'
528: PATH_INFO='/env.html'
1.285 moko 529:
1.214 paf 530: http://parser3/cgi-bin/parser3/env.html?123 =ERROR
531: $request:uri=/cgi-bin/parser3/env.html?123
532: REQUEST_URI='/cgi-bin/parser3/env.html?123'
533: SCRIPT_NAME='/cgi-bin/parser3'
534: PATH_INFO='/env.html'
535: */
1.285 moko 536: size_t script_name_len = strlen(script_name);
537: size_t uri_len = strlen(request_info.uri);
1.283 moko 538: if(strncmp(request_info.uri, script_name, script_name_len)==0 && script_name_len != uri_len) // under IIS they are the same
1.349 moko 539: SAPI::die("parser3: illegal CGI call (REQUEST_URI starts with SCRIPT_NAME)");
1.284 moko 540: } else { // fcgiwrap minimalistic setup
1.315 moko 541: request_info.uri = request_info.query_string && *request_info.query_string ? pa_strcat(path_info, "?", request_info.query_string) : path_info;
1.214 paf 542: }
1.283 moko 543: } else{
1.351 moko 544: request_info.document_root = full_disk_path();
1.285 moko 545: request_info.uri = "";
1.283 moko 546: }
1.122 parser 547:
1.283 moko 548: request_info.content_type = getenv("CONTENT_TYPE");
1.348 moko 549: request_info.content_length = cgi ? (size_t)pa_atoul(getenv("CONTENT_LENGTH")) : 0; // only SAPI_Info_CGI can read POST
1.283 moko 550: request_info.cookie = getenv("HTTP_COOKIE");
551: request_info.mail_received = mail_received;
1.184 paf 552:
1.319 moko 553: request_info.argv = argv_extra;
1.245 misha 554:
1.233 paf 555: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.320 moko 556: log("request_info: method=%s, uri=%s, q=%s, dr=%s, pt=%s", request_info.method, request_info.uri, request_info.query_string, request_info.document_root, request_info.path_translated);
1.233 paf 557: #endif
558:
1.122 parser 559: // prepare to process request
1.358 moko 560: Request r(*sapi_info, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS);
1.256 misha 561: {
1.297 moko 562: // initing ::request ptr for signal handlers
1.323 moko 563: RequestController rc(&r);
1.256 misha 564: // process the request
1.323 moko 565: r.core(locate_config(config_filespec, parser3_filespec), strcasecmp(request_info.method, "HEAD")==0);
1.303 moko 566: // clearing ::request in RequestController destructor to prevent signal handlers from accessing invalid memory
1.122 parser 567: }
1.231 paf 568:
1.280 moko 569: // finalize libraries
1.225 paf 570: pa_globals_done();
1.218 paf 571: }
572:
1.231 paf 573: #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION
1.316 moko 574: static const Exception call_real_parser_handler__do_PEH_return_it(bool cgi) {
1.231 paf 575: try {
1.316 moko 576: real_parser_handler(cgi);
1.231 paf 577: } catch(const Exception& e) {
578: return e;
1.122 parser 579: }
1.231 paf 580:
581: return Exception();
1.122 parser 582: }
1.272 moko 583:
1.316 moko 584: static void call_real_parser_handler__supress_system_exception(bool cgi) {
1.231 paf 585: Exception parser_exception;
586: LPEXCEPTION_POINTERS system_exception=0;
1.122 parser 587:
1.231 paf 588: __try {
1.316 moko 589: parser_exception=call_real_parser_handler__do_PEH_return_it(cgi);
1.288 moko 590: } __except ( (system_exception=GetExceptionInformation()), EXCEPTION_EXECUTE_HANDLER) {
1.231 paf 591: if(system_exception)
592: if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
1.272 moko 593: throw Exception("system", 0, "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress);
1.218 paf 594: else
1.272 moko 595: throw Exception("system", 0, "<no exception record>");
1.218 paf 596: else
1.272 moko 597: throw Exception("system", 0, "<no exception information>");
1.231 paf 598: }
599:
600: if(parser_exception)
601: throw Exception(parser_exception);
602: }
1.273 moko 603:
604: #define REAL_PARSER_HANDLER call_real_parser_handler__supress_system_exception
605: #else
606: #define REAL_PARSER_HANDLER real_parser_handler
1.218 paf 607: #endif
1.131 paf 608:
1.218 paf 609: static void usage(const char* program) {
1.188 paf 610: printf(
1.235 paf 611: "Parser/%s\n"
1.356 moko 612: "Copyright (c) 2001-2024 Art. Lebedev Studio (http://www.artlebedev.com)\n"
1.350 moko 613: "Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>\n"
1.184 paf 614: "\n"
1.307 moko 615: "Usage: %s [options] [file]\n"
1.184 paf 616: "Options are:\n"
1.185 paf 617: #ifdef WITH_MAILRECEIVE
1.193 paf 618: " -m Parse mail, put received letter to $mail:received\n"
1.184 paf 619: #endif
1.193 paf 620: " -f config_file Use this config file (/path/to/auto.p)\n"
1.296 moko 621: " -p [host:]port Start web server on this port\n"
1.272 moko 622: " -h Display usage information (this message)\n",
623: PARSER_VERSION,
1.184 paf 624: program);
625: exit(EINVAL);
626: }
627:
1.294 moko 628:
1.249 misha 629: int main(int argc, char *argv[]) {
1.233 paf 630: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
631: log("main: entry");
632: #endif
1.217 paf 633:
1.354 moko 634: parser3_filespec = argc && argv[0] ? MAYBE_BACK_SLASHES_TO_SLASHES(argv[0]) : "parser3";
1.294 moko 635: umask(2);
636:
637: // were we started as CGI?
1.316 moko 638: bool cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION");
1.357 moko 639: if(!cgi)
1.358 moko 640: sapi_info = &sapi_console;
1.294 moko 641:
1.203 paf 642: #ifdef SIGPIPE
1.325 moko 643: signal(SIGPIPE, SIGPIPE_handler);
1.203 paf 644: #endif
645:
1.354 moko 646: char* raw_filespec_to_process = NULL;
1.210 paf 647: if(cgi) {
1.184 paf 648: raw_filespec_to_process=getenv("PATH_TRANSLATED");
1.319 moko 649: argv_extra=argv + 1;
1.210 paf 650: } else {
1.250 misha 651: int optind=1;
1.245 misha 652: while(optind < argc){
1.354 moko 653: char* carg = argv[optind];
1.245 misha 654: if(carg[0] != '-')
1.184 paf 655: break;
1.245 misha 656:
657: for(size_t k = 1; k < strlen(carg); k++){
658: char c = carg[k];
659: switch (c) {
660: case 'h':
1.347 moko 661: usage(parser3_filespec);
1.245 misha 662: break;
663: case 'f':
664: if(optind < argc - 1){
665: optind++;
1.311 moko 666: config_filespec=argv[optind];
1.245 misha 667: }
668: break;
1.294 moko 669: case 'p':
670: if(optind < argc - 1){
671: optind++;
1.296 moko 672: httpd_host_port=argv[optind];
1.294 moko 673: }
674: break;
1.185 paf 675: #ifdef WITH_MAILRECEIVE
1.245 misha 676: case 'm':
677: mail_received=true;
678: break;
679: #endif
680: default:
1.347 moko 681: fprintf(stderr, "%s: invalid option '%c'\n", parser3_filespec, c);
682: usage(parser3_filespec);
1.245 misha 683: break;
684: }
1.184 paf 685: }
1.245 misha 686: optind++;
1.184 paf 687: }
1.245 misha 688:
689: if (optind > argc - 1) {
1.296 moko 690: if(!httpd_host_port) {
1.347 moko 691: fprintf(stderr, "%s: file not specified\n", parser3_filespec);
692: usage(parser3_filespec);
1.294 moko 693: }
694: } else {
695: raw_filespec_to_process=argv[optind];
1.10 paf 696: }
1.294 moko 697:
1.296 moko 698: if (httpd_host_port && mail_received) {
1.347 moko 699: fprintf(stderr, "%s: -p and -m options should not be used together\n", parser3_filespec);
700: usage(parser3_filespec);
1.294 moko 701: }
1.310 moko 702:
1.319 moko 703: argv_extra=argv + optind;
1.10 paf 704: }
705:
1.264 moko 706: #ifdef _MSC_VER
1.100 parser 707: setmode(fileno(stdin), _O_BINARY);
708: setmode(fileno(stdout), _O_BINARY);
709: setmode(fileno(stderr), _O_BINARY);
710: #endif
711:
1.218 paf 712: #if defined(_MSC_VER) && defined(_DEBUG)
1.148 paf 713: // Get current flag
714: int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG );
715:
716: // Turn on leak-checking bit
717: tmpFlag |= _CRTDBG_LEAK_CHECK_DF;
718:
719: // Set flag to the new value
720: _CrtSetDbgFlag( tmpFlag );
1.138 paf 721:
1.218 paf 722: _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE );
723: _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR );
1.138 paf 724: #endif
725:
1.318 moko 726: try { // global try
727: if(raw_filespec_to_process && *raw_filespec_to_process){
1.351 moko 728: filespec_to_process=full_disk_path(raw_filespec_to_process);
1.318 moko 729: }
1.10 paf 730:
1.316 moko 731: REAL_PARSER_HANDLER(cgi);
1.292 moko 732: } catch(const Exception& e) { // exception in unhandled exception
1.359 ! moko 733: SAPI::log(*sapi_info, "%s", e.comment());
! 734: SAPI::send_error(*sapi_info, e.comment(), strcmp(e.type(), "file.missing") ? "500" : "404");
1.16 paf 735: }
1.109 parser 736:
1.233 paf 737: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
738: log("main: successful return");
739: #endif
1.358 moko 740: return sapi_info->http_response_code < 100 ? sapi_info->http_response_code : 0;
1.1 paf 741: }
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