Annotation of parser3/src/targets/cgi/parser3.C, revision 1.374
1.27 paf 1: /** @file
2: Parser: scripting and CGI main.
3:
1.368 moko 4: Copyright (c) 2001-2026 Art. Lebedev Studio (https://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:
1.374 ! moko 8: volatile const char * IDENT_PARSER3_C="$Id: parser3.C,v 1.373 2026/09/30 16:44:20 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
1.362 moko 37: //#define PA_DEBUG_CGI_ENTRY_EXIT
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:
1.365 moko 55: const char* parser3_mode = "cgi"; // $status:mode
1.316 moko 56: static const char* filespec_to_process = 0; // [file]
57: static const char* httpd_host_port = 0; // -p option
1.319 moko 58: static const char* config_filespec = 0; // -f option or from env or next to the executable if exists
1.374 ! moko 59: static const char* log_filespec = 0; // -l option or from env, full disk path
1.316 moko 60: static bool mail_received = false; // -m option? [asked to parse incoming message to $mail:received]
1.347 moko 61: static const char* parser3_filespec = 0; // argv[0]
1.319 moko 62: static char** argv_extra = NULL;
1.245 misha 63:
1.317 moko 64: // for error logging
1.341 moko 65: static THREAD_LOCAL Request_info *request_info_4log = NULL; // global for correct log() reporting
1.374 ! moko 66: static const char* filespec_4log = NULL; // null only if system-wide auto.p used; full disk path, parser3.log goes next to it
1.201 paf 67:
1.366 moko 68: const char *parser3_log_filespec() { // $status:log-filename
1.363 moko 69: const char* slog=log_filespec;
1.61 paf 70:
1.366 moko 71: if(!slog) {
72: static char log_spec[MAX_STRING + 12 /* '/parser3.log' */];
1.352 moko 73: pa_strncpy(log_spec, filespec_4log, MAX_STRING);
74:
1.374 ! moko 75: if(char* log_dir_pos=strrchr(log_spec, '/')){
1.352 moko 76: strcpy(log_dir_pos, "/parser3.log");
77: } else {
1.374 ! moko 78: // system-wide auto.p used: the current directory
1.352 moko 79: strcpy(log_spec, "./parser3.log");
1.193 paf 80: }
1.366 moko 81: slog=log_spec;
1.193 paf 82: }
1.366 moko 83: return slog;
84: }
85:
86: // SAPI
87:
88: static void pa_log(const char* fmt, va_list args) {
89: // use no memory [so that we could log out-of-memory error]
90: const char* slog=parser3_log_filespec();
91: FILE *f=strcmp(slog,"-") ? fopen(slog, "at") : stderr;
1.363 moko 92:
1.192 paf 93: // fallback to stderr
1.362 moko 94: if(!f)
1.61 paf 95: f=stderr;
1.208 paf 96:
97: setbuf(f, 0); // stderr stream is unbuffered by default, but still...
1.61 paf 98:
99: // prefix
100: time_t t=time(0);
1.218 paf 101: if(const char* stamp=ctime(&t)) { // never saw that
1.173 paf 102: if(size_t len=strlen(stamp)) // saw once stamp being =""
1.333 moko 103: fprintf(f, "[%.*s] [%u] ", (int)len-1, stamp, (unsigned int)pa_get_thread_id() );
1.171 paf 104: }
1.366 moko 105:
1.61 paf 106: // message
1.246 misha 107: char buf[MAX_LOG_STRING];
108: size_t size=vsnprintf(buf, MAX_LOG_STRING, fmt, args);
109: size=remove_crlf(buf, buf+size);
1.239 paf 110: fwrite(buf, size, 1, f);
111:
1.341 moko 112: if(request_info_4log && request_info_4log->method) {
113: 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 114: } else
115: fputs(" [no request info]\n", f);
1.61 paf 116:
1.362 moko 117: if(f!=stderr)
1.61 paf 118: fclose(f);
1.85 parser 119: else
120: fflush(f);
1.124 parser 121: }
1.272 moko 122:
1.335 moko 123: void pa_log(const char* fmt, ...) {
1.272 moko 124: va_list args;
1.233 paf 125: va_start(args,fmt);
1.335 moko 126: pa_log(fmt, args);
1.233 paf 127: va_end(args);
128: }
1.124 parser 129:
1.322 moko 130: // appends to parser3.log located next to the config file if openable, to stderr otherwize
1.218 paf 131: void SAPI::log(SAPI_Info&, const char* fmt, ...) {
1.272 moko 132: va_list args;
1.124 parser 133: va_start(args,fmt);
1.335 moko 134: pa_log(fmt, args);
1.124 parser 135: va_end(args);
136: }
137:
1.290 moko 138: void SAPI::die(const char* fmt, ...) {
139: va_list args;
140:
141: // logging first, first vsnprintf
142: va_start(args,fmt);
1.335 moko 143: pa_log(fmt, args);
1.290 moko 144: va_end(args);
1.138 paf 145:
1.290 moko 146: // inform user, second vsnprintf
147: va_start(args, fmt);
1.299 moko 148: char message[MAX_STRING];
1.300 moko 149: vsnprintf(message, MAX_STRING, fmt, args);
1.134 paf 150:
1.358 moko 151: SAPI::send_error(sapi_info_4log ? *sapi_info_4log : *sapi_info, message);
1.290 moko 152: exit(1);
1.258 moko 153: // va_end(args);
1.28 paf 154: }
155:
1.358 moko 156: void SAPI::send_error(SAPI_Info& info, const char *exception_cstr, const char *status){
157: info.send_error(exception_cstr, status);
158: }
159:
1.294 moko 160: char* SAPI::Env::get(SAPI_Info& info, const char* name) {
161: return info.get_env(name);
1.218 paf 162: }
163:
1.305 moko 164: bool SAPI::Env::set(SAPI_Info& info, const char* name, const char* value) {
165: return info.set_env(name, value);
166: }
167:
1.294 moko 168: const char* const *SAPI::Env::get(SAPI_Info& info) {
169: return info.get_env();
1.180 paf 170: }
171:
1.354 moko 172: size_t SAPI::read_post(SAPI_Info& info, char* buf, size_t max_bytes) {
1.294 moko 173: return info.read_post(buf, max_bytes);
1.10 paf 174: }
175:
1.294 moko 176: void SAPI::add_header_attribute(SAPI_Info& info, const char* dont_store_key, const char* dont_store_value) {
1.358 moko 177: info.add_header(dont_store_key, dont_store_value);
1.19 paf 178: }
179:
1.360 moko 180: void SAPI::send_headers(SAPI_Info& info) {
1.358 moko 181: info.send_headers();
1.30 paf 182: }
1.20 paf 183:
1.360 moko 184: void SAPI::clear_headers(SAPI_Info& info) {
1.361 moko 185: info.clear_headers();
1.360 moko 186: }
187:
1.294 moko 188: size_t SAPI::send_body(SAPI_Info& info, const void *buf, size_t size) {
189: return info.send_body(buf, size);
1.58 paf 190: }
191:
1.354 moko 192: static const char* full_disk_path(const char* file_name = "") {
1.374 ! moko 193: const char* path=backslashes_to_slashes(file_name);
! 194: if(path[0]=='/' || is_os_absolute_path(path)) // '/' includes the UNC path //server, as there are no web paths here; C: is left for is_os_absolute_path
! 195: return path;
1.373 moko 196: char cwd[MAX_STRING];
1.374 ! moko 197: return pa_strcat(backslashes_to_slashes(getcwd(cwd, MAX_STRING) ? cwd : ""), "/", path);
1.97 parser 198: }
199:
1.218 paf 200: static void log_signal(const char* signal_name) {
1.358 moko 201: pa_log("%s received %s processing request", signal_name, request ? "while" : "before or after");
1.205 paf 202: }
203:
1.201 paf 204: #ifdef SIGPIPE
1.243 misha 205: #define SIGPIPE_NAME "SIGPIPE"
206: static const String sigpipe_name(SIGPIPE_NAME);
1.205 paf 207: static void SIGPIPE_handler(int /*sig*/){
1.243 misha 208: Value* sigpipe=0;
209: if(request)
1.251 misha 210: sigpipe=request->main_class.get_element(sigpipe_name);
1.243 misha 211: if(sigpipe && sigpipe->as_bool())
1.244 misha 212: log_signal(SIGPIPE_NAME);
1.243 misha 213:
1.201 paf 214: if(request)
1.276 moko 215: request->set_skip(Request::SKIP_INTERRUPTED);
1.201 paf 216: }
217: #endif
218:
1.322 moko 219: // requires pa_thread_request() in entry_exists() under Windows
1.354 moko 220: static const char* locate_config(const char* config_filespec_option, const char* executable_path){
1.322 moko 221: filespec_4log=config_filespec_option;
222: if(!filespec_4log)
1.321 moko 223: filespec_4log=getenv(PARSER_CONFIG_ENV_NAME);
1.322 moko 224: if(!filespec_4log)
225: filespec_4log=getenv(REDIRECT_PREFIX PARSER_CONFIG_ENV_NAME);
226: if(!filespec_4log){
1.373 moko 227: const char* exec_dir_pos = strrchr(executable_path, '/');
1.322 moko 228: #ifdef SYSTEM_CONFIG_FILE
1.353 moko 229: if(exec_dir_pos){
230: #endif
1.374 ! moko 231: // next to the executable; full path should be used to avoid "parser already configured"
! 232: filespec_4log=full_disk_path(!exec_dir_pos || (exec_dir_pos==executable_path+1 && *executable_path=='.')
! 233: ? AUTO_FILE_NAME // parser3 or ./parser3
! 234: : pa_strcat(pa_strdup(executable_path, exec_dir_pos - executable_path), "/" AUTO_FILE_NAME));
1.353 moko 235: if(entry_exists(filespec_4log))
236: return filespec_4log;
237: #ifdef SYSTEM_CONFIG_FILE
238: }
1.322 moko 239: if(entry_exists(SYSTEM_CONFIG_FILE)){
240: filespec_4log=NULL;
241: return SYSTEM_CONFIG_FILE;
242: }
243: #endif
244: return NULL;
1.321 moko 245: }
1.374 ! moko 246: // when -f auto.p full path should be used to avoid "parser already configured"
! 247: return filespec_4log=full_disk_path(filespec_4log);
1.321 moko 248: }
249:
1.227 paf 250: #ifdef WIN32
1.354 moko 251: static const char* maybe_reconstruct_IIS_status_in_qs(const char* original) {
1.228 paf 252: // 404;http://servername/page[?param=value...]
1.227 paf 253: // ';' should be urlencoded by HTTP standard, so we shouldn't get it from browser
254: // and can consider that as an indication that this is IIS way to report errors
255:
1.272 moko 256: if(original && isdigit((unsigned char)original[0]) && isdigit((unsigned char)original[1]) && isdigit((unsigned char)original[2]) && original[3]==';'){
1.227 paf 257: size_t original_len=strlen(original);
1.272 moko 258: char* reconstructed=new(PointerFreeGC) char[original_len +12/*IIS-STATUS=&*/ +14/*IIS-DOCUMENT=&*/ +1];
1.227 paf 259: char* cur=reconstructed;
260: memcpy(cur, "IIS-STATUS=", 11); cur+=11;
261: memcpy(cur, original, 3); cur+=3;
262: *cur++='&';
263:
1.228 paf 264: const char* qmark_at=strchr(original, '?');
1.227 paf 265: memcpy(cur, "IIS-DOCUMENT=", 13); cur+=13;
266: {
1.272 moko 267: size_t value_len=(qmark_at ? qmark_at-original : original_len)-4;
1.227 paf 268: memcpy(cur, original+4, value_len); cur+=value_len;
269: }
270:
271: if(qmark_at) {
272: *cur++='&';
273: strcpy(cur, qmark_at+1/*skip ? itself*/);
274: } else
275: *cur=0;
276:
277: return reconstructed;
278: }
279:
280: return original;
281: }
1.283 moko 282:
283: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) maybe_reconstruct_IIS_status_in_qs(s)
1.354 moko 284:
1.342 moko 285: #else
1.354 moko 286:
1.283 moko 287: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) s
1.354 moko 288:
1.227 paf 289: #endif
290:
1.256 misha 291: class RequestController {
292: public:
293: RequestController(Request* r){
1.341 moko 294: request=r;
1.256 misha 295: }
296: ~RequestController(){
1.341 moko 297: request=0;
298: }
299: };
300:
301: class RequestInfoController {
302: public:
1.358 moko 303: RequestInfoController(Request_info* rinfo, SAPI_Info* sinfo){
1.341 moko 304: request_info_4log=rinfo;
1.358 moko 305: sapi_info_4log=sinfo;
1.341 moko 306: }
307: ~RequestInfoController(){
308: request_info_4log=0;
1.358 moko 309: sapi_info_4log=0;
1.256 misha 310: }
311: };
312:
1.342 moko 313: /** httpd support */
314: static const String httpd_class_name("httpd");
315:
1.317 moko 316: static void config_handler(SAPI_Info &info) {
1.341 moko 317: Request_info request_info;
1.358 moko 318: RequestInfoController ric(&request_info, &info);
1.341 moko 319:
1.373 moko 320: request_info.set_document_root(full_disk_path());
1.317 moko 321: request_info.uri = "";
1.319 moko 322: request_info.argv = argv_extra;
1.317 moko 323:
324: // prepare to process request
1.323 moko 325: Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT));
1.330 moko 326: // only once
327: config_filespec = locate_config(config_filespec, parser3_filespec);
328: // process main auto.p only
329: r.core(config_filespec, false, String::Empty);
1.317 moko 330: }
331:
332: static void connection_handler(SAPI_Info_HTTPD &info, HTTPD_Connection &connection) {
1.341 moko 333: Request_info request_info;
1.358 moko 334: RequestInfoController ric(&request_info, &info);
1.341 moko 335:
1.325 moko 336: try {
1.336 moko 337: if(!connection.read_header())
1.332 moko 338: return; // ignore "void" connections
1.325 moko 339: info.populate_env();
340:
1.373 moko 341: request_info.set_document_root(full_disk_path());
1.325 moko 342: request_info.path_translated = filespec_to_process;
343: request_info.method = connection.method();
344: request_info.query_string = connection.query();
345: request_info.uri = request_info.strip_absolute_uri(connection.uri());
346: request_info.content_type = connection.content_type();
347: request_info.content_length = (size_t)connection.content_length();
348: request_info.cookie = info.get_env("HTTP_COOKIE");
349: request_info.mail_received = false;
350: request_info.argv = argv_extra;
1.294 moko 351:
1.325 moko 352: // prepare to process request
353: Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT));
1.330 moko 354: // process the request
1.342 moko 355: r.core(config_filespec, strcasecmp(request_info.method, "HEAD")==0, main_method_name, &httpd_class_name);
1.361 moko 356: } catch(const Exception& e) { // exception in connection handling
1.325 moko 357: SAPI::log(info, "%s", e.comment());
1.354 moko 358: const char* status = info.exception_http_status(e.type());
1.358 moko 359: if(*status)
1.337 moko 360: SAPI::send_error(info, e.comment(), status);
1.325 moko 361: }
362: }
1.317 moko 363:
1.328 moko 364: #ifdef _MSC_VER
365: DWORD WINAPI connection_thread(void *arg){
366: #else
1.325 moko 367: static void *connection_thread(void *arg){
1.328 moko 368: #endif
1.325 moko 369: HTTPD_Connection &connection=*(HTTPD_Connection*)arg;
370: SAPI_Info_HTTPD info(connection);
1.294 moko 371:
1.325 moko 372: try {
373: connection_handler(info, connection);
374: } catch(const Exception& e) { // exception in send_error
1.358 moko 375: pa_log("%s", e.comment());
1.294 moko 376: }
1.325 moko 377:
378: delete(&connection);
1.328 moko 379: return 0;
1.294 moko 380: }
381:
1.317 moko 382: static void httpd_mode() {
1.358 moko 383: config_handler(*sapi_info);
1.325 moko 384:
1.346 moko 385: SOCKET sock = HTTPD_Server::bind(httpd_host_port);
1.294 moko 386:
1.327 moko 387: #ifdef SIGPIPE
1.325 moko 388: signal(SIGPIPE, SIG_IGN);
389: #endif
1.317 moko 390:
1.297 moko 391: while(1){
1.328 moko 392: #ifndef _MSC_VER
1.325 moko 393: pid_t pid=1;
1.343 moko 394: if(HTTPD_Server::mode == HTTPD_Server::PARALLEL)
395: while (waitpid((pid_t)(-1), 0, WNOHANG) > 0);
1.328 moko 396: #endif
1.303 moko 397: try {
398: HTTPD_Connection connection;
1.345 moko 399: if(!connection.accept(sock, 500))
1.303 moko 400: continue;
401:
1.325 moko 402: switch (HTTPD_Server::mode) {
403: case HTTPD_Server::MULTITHREADED:
1.328 moko 404: #ifdef _MSC_VER
405: if (!GC_CreateThread(0, 0, connection_thread, new HTTPD_Connection(connection), 0, 0))
406: throw Exception("httpd.fork", 0, "thread creation failed");
1.346 moko 407: connection.sock=INVALID_SOCKET;
1.328 moko 408: break;
409: #else
1.339 moko 410: #ifdef HAVE_TLS
1.325 moko 411: pthread_t thread;
412: pthread_attr_t attr;
413: pthread_attr_init(&attr);
414: pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
415:
416: if(int result=GC_pthread_create(&thread, &attr, connection_thread, new HTTPD_Connection(connection)))
417: throw Exception("httpd.fork", 0, "thread creation failed (%d)", result);
1.346 moko 418: connection.sock=INVALID_SOCKET;
1.325 moko 419: break;
1.339 moko 420: #endif
1.325 moko 421: case HTTPD_Server::PARALLEL:
422: pid=fork();
423: if(pid<0)
424: throw Exception("httpd.fork", 0, "fork failed: %s (%d)", strerror(errno), errno);
425: if(pid>0)
426: continue; // parent should close connection.sock as well
427: #endif
428: case HTTPD_Server::SEQUENTIAL: // and fork child
1.303 moko 429:
1.325 moko 430: SAPI_Info_HTTPD info(connection);
431: connection_handler(info, connection);
1.303 moko 432: }
433: // closing connection socket in HTTPD_Connection destructor
434: } catch(const Exception& e) { // exception in accept or send_error
1.358 moko 435: pa_log("%s", e.comment());
1.294 moko 436: }
1.325 moko 437:
1.328 moko 438: #ifndef _MSC_VER
1.325 moko 439: if(pid==0) // fork child
440: exit(0);
1.328 moko 441: #endif
1.294 moko 442: }
443: }
1.231 paf 444:
1.294 moko 445: /** main workhorse */
446:
1.316 moko 447: static void real_parser_handler(bool cgi) {
1.280 moko 448: // init libraries
1.218 paf 449: pa_globals_init();
1.294 moko 450:
1.296 moko 451: if(httpd_host_port){
1.308 moko 452: httpd_mode();
1.294 moko 453: }
454:
455: const char* request_method=getenv("REQUEST_METHOD");
456:
1.367 moko 457: if(!filespec_to_process){
458: SAPI::send_error(*sapi_info, "Parser/" PARSER_VERSION);
459: exit(1);
460: }
461:
1.297 moko 462: // global request info
1.341 moko 463: Request_info request_info;
1.358 moko 464: RequestInfoController ric(&request_info, sapi_info);
1.341 moko 465:
1.283 moko 466: request_info.path_translated = filespec_to_process;
467: request_info.method = request_method ? request_method : "GET";
468: request_info.query_string = MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(getenv("QUERY_STRING"));
469:
1.122 parser 470: if(cgi) {
1.284 moko 471: // obligatory
1.218 paf 472: const char* path_info=getenv("PATH_INFO");
1.214 paf 473: if(!path_info)
1.349 moko 474: SAPI::die("parser3: illegal CGI call (missing PATH_INFO)");
1.283 moko 475:
1.373 moko 476: const char* document_root = getenv("DOCUMENT_ROOT");
477: if(!document_root) {
1.285 moko 478: // IIS or fcgiwrap minimalistic setup
479: ssize_t prefix_len = strlen(filespec_to_process) - strlen(path_info);
480: if(prefix_len < 0 || strcmp(filespec_to_process + prefix_len, path_info) != 0)
1.349 moko 481: SAPI::die("parser3: illegal CGI call (invalid PATH_INFO in reinventing DOCUMENT_ROOT)");
1.285 moko 482:
1.373 moko 483: document_root = pa_strdup(filespec_to_process, prefix_len);
1.283 moko 484: }
1.373 moko 485: request_info.set_document_root(document_root);
1.214 paf 486:
1.285 moko 487: request_info.uri = request_info.strip_absolute_uri(getenv("REQUEST_URI"));
1.283 moko 488: if(request_info.uri) { // apache & others stuck to standards
1.284 moko 489: // another obligatory
1.285 moko 490: const char* script_name = getenv("SCRIPT_NAME");
1.284 moko 491: if(!script_name)
1.349 moko 492: SAPI::die("parser3: illegal CGI call (missing SCRIPT_NAME)");
1.214 paf 493: /*
494: http://parser3/env.html?123 =OK
495: $request:uri=/env.html?123
496: REQUEST_URI='/env.html?123'
497: SCRIPT_NAME='/cgi-bin/parser3'
498: PATH_INFO='/env.html'
1.285 moko 499:
1.214 paf 500: http://parser3/cgi-bin/parser3/env.html?123 =ERROR
501: $request:uri=/cgi-bin/parser3/env.html?123
502: REQUEST_URI='/cgi-bin/parser3/env.html?123'
503: SCRIPT_NAME='/cgi-bin/parser3'
504: PATH_INFO='/env.html'
505: */
1.285 moko 506: size_t script_name_len = strlen(script_name);
507: size_t uri_len = strlen(request_info.uri);
1.283 moko 508: 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 509: SAPI::die("parser3: illegal CGI call (REQUEST_URI starts with SCRIPT_NAME)");
1.284 moko 510: } else { // fcgiwrap minimalistic setup
1.315 moko 511: request_info.uri = request_info.query_string && *request_info.query_string ? pa_strcat(path_info, "?", request_info.query_string) : path_info;
1.214 paf 512: }
1.283 moko 513: } else{
1.373 moko 514: request_info.set_document_root(full_disk_path());
1.285 moko 515: request_info.uri = "";
1.283 moko 516: }
1.122 parser 517:
1.283 moko 518: request_info.content_type = getenv("CONTENT_TYPE");
1.348 moko 519: request_info.content_length = cgi ? (size_t)pa_atoul(getenv("CONTENT_LENGTH")) : 0; // only SAPI_Info_CGI can read POST
1.283 moko 520: request_info.cookie = getenv("HTTP_COOKIE");
521: request_info.mail_received = mail_received;
1.184 paf 522:
1.319 moko 523: request_info.argv = argv_extra;
1.245 misha 524:
1.233 paf 525: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.362 moko 526: pa_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 527: #endif
528:
1.122 parser 529: // prepare to process request
1.358 moko 530: Request r(*sapi_info, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS);
1.256 misha 531: {
1.297 moko 532: // initing ::request ptr for signal handlers
1.323 moko 533: RequestController rc(&r);
1.256 misha 534: // process the request
1.323 moko 535: r.core(locate_config(config_filespec, parser3_filespec), strcasecmp(request_info.method, "HEAD")==0);
1.303 moko 536: // clearing ::request in RequestController destructor to prevent signal handlers from accessing invalid memory
1.122 parser 537: }
1.231 paf 538:
1.280 moko 539: // finalize libraries
1.225 paf 540: pa_globals_done();
1.218 paf 541: }
542:
1.231 paf 543: #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION
1.316 moko 544: static const Exception call_real_parser_handler__do_PEH_return_it(bool cgi) {
1.231 paf 545: try {
1.316 moko 546: real_parser_handler(cgi);
1.231 paf 547: } catch(const Exception& e) {
548: return e;
1.122 parser 549: }
1.231 paf 550:
551: return Exception();
1.122 parser 552: }
1.272 moko 553:
1.316 moko 554: static void call_real_parser_handler__supress_system_exception(bool cgi) {
1.231 paf 555: Exception parser_exception;
556: LPEXCEPTION_POINTERS system_exception=0;
1.122 parser 557:
1.231 paf 558: __try {
1.316 moko 559: parser_exception=call_real_parser_handler__do_PEH_return_it(cgi);
1.288 moko 560: } __except ( (system_exception=GetExceptionInformation()), EXCEPTION_EXECUTE_HANDLER) {
1.231 paf 561: if(system_exception)
562: if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
1.371 moko 563: throw Exception("system", 0, "0x%08X at %p", er->ExceptionCode, er->ExceptionAddress);
1.218 paf 564: else
1.272 moko 565: throw Exception("system", 0, "<no exception record>");
1.218 paf 566: else
1.272 moko 567: throw Exception("system", 0, "<no exception information>");
1.231 paf 568: }
569:
570: if(parser_exception)
571: throw Exception(parser_exception);
572: }
1.273 moko 573:
574: #define REAL_PARSER_HANDLER call_real_parser_handler__supress_system_exception
575: #else
576: #define REAL_PARSER_HANDLER real_parser_handler
1.218 paf 577: #endif
1.131 paf 578:
1.364 moko 579: static void usage(const char* message=NULL) {
580: if(message){
581: fprintf(stderr, message, parser3_filespec);
582: }
583:
1.188 paf 584: printf(
1.235 paf 585: "Parser/%s\n"
1.368 moko 586: "Copyright (c) 2001-2026 Art. Lebedev Studio (https://www.artlebedev.com)\n"
1.350 moko 587: "Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>\n"
1.184 paf 588: "\n"
1.307 moko 589: "Usage: %s [options] [file]\n"
1.184 paf 590: "Options are:\n"
1.185 paf 591: #ifdef WITH_MAILRECEIVE
1.193 paf 592: " -m Parse mail, put received letter to $mail:received\n"
1.184 paf 593: #endif
1.193 paf 594: " -f config_file Use this config file (/path/to/auto.p)\n"
1.364 moko 595: " -l log_file Use this log file (/path/to/parser3.log)\n"
1.296 moko 596: " -p [host:]port Start web server on this port\n"
1.272 moko 597: " -h Display usage information (this message)\n",
598: PARSER_VERSION,
1.364 moko 599: parser3_filespec ? parser3_filespec : "parser3" );
1.184 paf 600: exit(EINVAL);
601: }
602:
1.364 moko 603: #define ARG_REQUIRED \
604: if(c[1] || !*(++carg)){ \
605: fprintf(stderr, "%s: option '%c' requires an argument\n", parser3_filespec, *c); \
606: usage(); \
607: }
1.294 moko 608:
1.249 misha 609: int main(int argc, char *argv[]) {
1.233 paf 610: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.362 moko 611: pa_log("main: entry");
1.233 paf 612: #endif
1.217 paf 613:
1.364 moko 614: if(!argc || !argv[0])
615: usage();
1.373 moko 616: parser3_filespec = backslashes_to_slashes(argv[0]);
1.364 moko 617:
1.294 moko 618: umask(2);
619:
620: // were we started as CGI?
1.316 moko 621: bool cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION");
1.365 moko 622: if(!cgi){
1.358 moko 623: sapi_info = &sapi_console;
1.365 moko 624: parser3_mode = "console";
625: }
1.294 moko 626:
1.203 paf 627: #ifdef SIGPIPE
1.325 moko 628: signal(SIGPIPE, SIGPIPE_handler);
1.203 paf 629: #endif
1.354 moko 630: char* raw_filespec_to_process = NULL;
1.210 paf 631: if(cgi) {
1.184 paf 632: raw_filespec_to_process=getenv("PATH_TRANSLATED");
1.319 moko 633: argv_extra=argv + 1;
1.210 paf 634: } else {
1.364 moko 635: char** carg = argv + 1;
636: for(;*carg; carg++){
637: if((*carg)[0] != '-')
1.184 paf 638: break;
1.245 misha 639:
1.364 moko 640: for(char* c=(*carg)+1; *c; c++){
641: switch (*c) {
1.245 misha 642: case 'h':
1.364 moko 643: usage();
1.245 misha 644: break;
645: case 'f':
1.364 moko 646: ARG_REQUIRED;
647: config_filespec=*carg;
1.245 misha 648: break;
1.362 moko 649: case 'l':
1.364 moko 650: ARG_REQUIRED;
651: log_filespec=*carg;
1.362 moko 652: break;
1.294 moko 653: case 'p':
1.364 moko 654: ARG_REQUIRED;
655: httpd_host_port=*carg;
1.365 moko 656: parser3_mode="httpd";
1.294 moko 657: break;
1.185 paf 658: #ifdef WITH_MAILRECEIVE
1.245 misha 659: case 'm':
660: mail_received=true;
1.365 moko 661: parser3_mode="mail";
1.245 misha 662: break;
663: #endif
664: default:
1.364 moko 665: fprintf(stderr, "%s: invalid option '%c'\n", parser3_filespec, *c);
666: usage();
1.245 misha 667: break;
668: }
1.184 paf 669: }
670: }
1.245 misha 671:
1.364 moko 672: if (*carg) {
673: raw_filespec_to_process=*carg;
1.294 moko 674: } else {
1.364 moko 675: if(!httpd_host_port)
676: usage("%s: file not specified\n");
1.10 paf 677: }
1.294 moko 678:
1.364 moko 679: if (httpd_host_port && mail_received)
680: usage("%s: -p and -m options should not be used together\n");
1.310 moko 681:
1.364 moko 682: argv_extra=carg;
1.10 paf 683: }
684:
1.374 ! moko 685: // prepare full disk path log_filespec here, as logging must not allocate
! 686: if(!log_filespec)
! 687: log_filespec=getenv(PARSER_LOG_ENV_NAME);
! 688: if(!log_filespec)
! 689: log_filespec=getenv(REDIRECT_PREFIX PARSER_LOG_ENV_NAME);
! 690: if(log_filespec)
! 691: log_filespec=full_disk_path(log_filespec);
! 692:
1.264 moko 693: #ifdef _MSC_VER
1.100 parser 694: setmode(fileno(stdin), _O_BINARY);
695: setmode(fileno(stdout), _O_BINARY);
696: setmode(fileno(stderr), _O_BINARY);
697: #endif
698:
1.218 paf 699: #if defined(_MSC_VER) && defined(_DEBUG)
1.148 paf 700: // Get current flag
701: int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG );
702:
703: // Turn on leak-checking bit
704: tmpFlag |= _CRTDBG_LEAK_CHECK_DF;
705:
706: // Set flag to the new value
707: _CrtSetDbgFlag( tmpFlag );
1.138 paf 708:
1.218 paf 709: _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE );
710: _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR );
1.138 paf 711: #endif
712:
1.318 moko 713: try { // global try
714: if(raw_filespec_to_process && *raw_filespec_to_process){
1.351 moko 715: filespec_to_process=full_disk_path(raw_filespec_to_process);
1.318 moko 716: }
1.10 paf 717:
1.316 moko 718: REAL_PARSER_HANDLER(cgi);
1.361 moko 719: } catch(const Exception& e) { // exception in config_handler
1.359 moko 720: SAPI::log(*sapi_info, "%s", e.comment());
721: SAPI::send_error(*sapi_info, e.comment(), strcmp(e.type(), "file.missing") ? "500" : "404");
1.16 paf 722: }
1.109 parser 723:
1.233 paf 724: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.362 moko 725: pa_log("main: successful return");
1.233 paf 726: #endif
1.358 moko 727: return sapi_info->http_response_code < 100 ? sapi_info->http_response_code : 0;
1.1 paf 728: }
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