Annotation of parser3/src/targets/cgi/parser3.C, revision 1.386
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:
1.386 ! moko 8: volatile const char * IDENT_PARSER3_C="$Id: parser3.C,v 1.385 2026/10/26 22:41:38 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"
1.375 moko 20: #include "pa_code_cache.h"
1.379 moko 21: #include "pa_websocket.h"
1.207 paf 22:
1.263 moko 23: #ifdef _MSC_VER
1.264 moko 24: #include <crtdbg.h>
1.263 moko 25: #include <windows.h>
26: #include <direct.h>
1.328 moko 27:
28: extern "C" HANDLE WINAPI GC_CreateThread(LPSECURITY_ATTRIBUTES, DWORD, LPTHREAD_START_ROUTINE, LPVOID, DWORD, LPDWORD);
29:
30: #else
31:
32: extern "C" int GC_pthread_create(pthread_t *, const pthread_attr_t *, void *(*)(void *), void * /* arg */);
33:
1.120 parser 34: #endif
35:
1.232 paf 36: // defines
1.231 paf 37:
1.233 paf 38: // comment remove me after debugging
1.362 moko 39: //#define PA_DEBUG_CGI_ENTRY_EXIT
1.233 paf 40:
1.278 moko 41: #if defined(_MSC_VER) && !defined(_DEBUG)
1.231 paf 42: # define PA_SUPPRESS_SYSTEM_EXCEPTION
43: #endif
44:
1.109 parser 45: // consts
1.84 parser 46:
1.175 paf 47: #define REDIRECT_PREFIX "REDIRECT_"
1.181 paf 48: #define PARSER_CONFIG_ENV_NAME "CGI_PARSER_CONFIG"
1.226 paf 49: #define PARSER_LOG_ENV_NAME "CGI_PARSER_LOG"
1.159 paf 50:
1.358 moko 51: SAPI_Info sapi_console;
52: SAPI_Info_CGI sapi_cgi;
53:
54: static SAPI_Info *sapi_info = &sapi_cgi;
55: static THREAD_LOCAL SAPI_Info *sapi_info_4log = NULL; // global for correct send error in die()
1.357 moko 56:
1.365 moko 57: const char* parser3_mode = "cgi"; // $status:mode
1.316 moko 58: static const char* filespec_to_process = 0; // [file]
59: static const char* httpd_host_port = 0; // -p option
1.319 moko 60: static const char* config_filespec = 0; // -f option or from env or next to the executable if exists
1.374 moko 61: static const char* log_filespec = 0; // -l option or from env, full disk path
1.316 moko 62: static bool mail_received = false; // -m option? [asked to parse incoming message to $mail:received]
1.347 moko 63: static const char* parser3_filespec = 0; // argv[0]
1.319 moko 64: static char** argv_extra = NULL;
1.245 misha 65:
1.317 moko 66: // for error logging
1.341 moko 67: static THREAD_LOCAL Request_info *request_info_4log = NULL; // global for correct log() reporting
1.374 moko 68: 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 69:
1.366 moko 70: const char *parser3_log_filespec() { // $status:log-filename
1.363 moko 71: const char* slog=log_filespec;
1.61 paf 72:
1.366 moko 73: if(!slog) {
1.381 moko 74: static THREAD_LOCAL char log_spec[MAX_STRING + 12 /* '/parser3.log' */];
1.352 moko 75: pa_strncpy(log_spec, filespec_4log, MAX_STRING);
76:
1.374 moko 77: if(char* log_dir_pos=strrchr(log_spec, '/')){
1.352 moko 78: strcpy(log_dir_pos, "/parser3.log");
79: } else {
1.374 moko 80: // system-wide auto.p used: the current directory
1.352 moko 81: strcpy(log_spec, "./parser3.log");
1.193 paf 82: }
1.366 moko 83: slog=log_spec;
1.193 paf 84: }
1.366 moko 85: return slog;
86: }
87:
88: // SAPI
89:
1.385 moko 90: #ifndef O_CLOEXEC
91: #define O_CLOEXEC 0
92: #endif
93: #ifndef STDERR_FILENO
94: #define STDERR_FILENO 2
95: #endif
1.363 moko 96:
1.385 moko 97: static void pa_log(const char* stamp, const char* fmt, va_list args) {
98: // use no memory (to log out-of-memory error): the line is built on the stack and written at once
99: char line[64 + MAX_LOG_STRING + 1024 + 32 + 100]; // prefix + message + request info suffix: uri + method and the rest of it
100: size_t size=0;
1.61 paf 101:
102: // prefix
1.385 moko 103: #ifndef _MSC_VER
104: char stamp_buffer[32];
105: #endif
106: if(!stamp){
107: time_t t=time(0);
1.381 moko 108: #ifdef _MSC_VER
1.385 moko 109: stamp=ctime(&t); // the buffer is per thread
1.381 moko 110: #else
1.385 moko 111: stamp=ctime_r(&t, stamp_buffer); // the buffer of ctime() is shared by the threads
1.381 moko 112: #endif
1.385 moko 113: }
1.381 moko 114: if(stamp) { // never saw that
1.173 paf 115: if(size_t len=strlen(stamp)) // saw once stamp being =""
1.385 moko 116: size=pa_snprintf(line, 64, "[%.*s] [%u] ", (int)len-1 /* exclude \n */, stamp, (unsigned int)pa_get_thread_id() );
1.171 paf 117: }
1.366 moko 118:
1.61 paf 119: // message
1.385 moko 120: size+=remove_crlf(line+size, line+size+pa_vsnprintf(line+size, MAX_LOG_STRING, fmt, args));
1.61 paf 121:
1.385 moko 122: // suffix
123: if(request_info_4log && request_info_4log->method)
124: size+=pa_snprintf(line+size, sizeof(line)-size, " [uri=%.1024s, method=%.32s, cl=%lu]\n", request_info_4log->uri ? request_info_4log->uri : "<unknown>", request_info_4log->method, (unsigned long)request_info_4log->content_length);
1.85 parser 125: else
1.385 moko 126: size+=pa_snprintf(line+size, sizeof(line)-size, " [no request info]\n");
127:
128: const char* slog=parser3_log_filespec();
129: int fd=strcmp(slog,"-") ? pa_open(slog, O_WRONLY | O_APPEND | O_CREAT | O_CLOEXEC, 0666) : -1;
130: if(fd<0)
131: fd=STDERR_FILENO; // fallback to stderr
132: PA_UNUSED int ignore_result=write(fd, line, (unsigned int)size);
133: if(fd!=STDERR_FILENO)
134: close(fd);
1.124 parser 135: }
1.272 moko 136:
1.335 moko 137: void pa_log(const char* fmt, ...) {
1.272 moko 138: va_list args;
1.233 paf 139: va_start(args,fmt);
1.385 moko 140: pa_log(0, fmt, args);
1.233 paf 141: va_end(args);
142: }
1.124 parser 143:
1.322 moko 144: // appends to parser3.log located next to the config file if openable, to stderr otherwize
1.218 paf 145: void SAPI::log(SAPI_Info&, const char* fmt, ...) {
1.272 moko 146: va_list args;
1.124 parser 147: va_start(args,fmt);
1.385 moko 148: pa_log(0, fmt, args);
1.124 parser 149: va_end(args);
150: }
151:
1.290 moko 152: void SAPI::die(const char* fmt, ...) {
153: va_list args;
154:
155: // logging first, first vsnprintf
156: va_start(args,fmt);
1.385 moko 157: pa_log(0, fmt, args);
1.290 moko 158: va_end(args);
1.138 paf 159:
1.290 moko 160: // inform user, second vsnprintf
161: va_start(args, fmt);
1.299 moko 162: char message[MAX_STRING];
1.380 moko 163: pa_vsnprintf(message, MAX_STRING, fmt, args);
1.134 paf 164:
1.358 moko 165: SAPI::send_error(sapi_info_4log ? *sapi_info_4log : *sapi_info, message);
1.290 moko 166: exit(1);
1.258 moko 167: // va_end(args);
1.28 paf 168: }
169:
1.358 moko 170: void SAPI::send_error(SAPI_Info& info, const char *exception_cstr, const char *status){
171: info.send_error(exception_cstr, status);
172: }
173:
1.294 moko 174: char* SAPI::Env::get(SAPI_Info& info, const char* name) {
175: return info.get_env(name);
1.218 paf 176: }
177:
1.305 moko 178: bool SAPI::Env::set(SAPI_Info& info, const char* name, const char* value) {
179: return info.set_env(name, value);
180: }
181:
1.294 moko 182: const char* const *SAPI::Env::get(SAPI_Info& info) {
183: return info.get_env();
1.180 paf 184: }
185:
1.354 moko 186: size_t SAPI::read_post(SAPI_Info& info, char* buf, size_t max_bytes) {
1.294 moko 187: return info.read_post(buf, max_bytes);
1.10 paf 188: }
189:
1.294 moko 190: void SAPI::add_header_attribute(SAPI_Info& info, const char* dont_store_key, const char* dont_store_value) {
1.358 moko 191: info.add_header(dont_store_key, dont_store_value);
1.19 paf 192: }
193:
1.360 moko 194: void SAPI::send_headers(SAPI_Info& info) {
1.358 moko 195: info.send_headers();
1.30 paf 196: }
1.20 paf 197:
1.360 moko 198: void SAPI::clear_headers(SAPI_Info& info) {
1.361 moko 199: info.clear_headers();
1.360 moko 200: }
201:
1.294 moko 202: size_t SAPI::send_body(SAPI_Info& info, const void *buf, size_t size) {
203: return info.send_body(buf, size);
1.58 paf 204: }
205:
1.354 moko 206: static const char* full_disk_path(const char* file_name = "") {
1.374 moko 207: const char* path=backslashes_to_slashes(file_name);
208: 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
209: return path;
1.373 moko 210: char cwd[MAX_STRING];
1.374 moko 211: return pa_strcat(backslashes_to_slashes(getcwd(cwd, MAX_STRING) ? cwd : ""), "/", path);
1.97 parser 212: }
213:
1.201 paf 214: #ifdef SIGPIPE
1.386 ! moko 215: // write to a closed socket or pipe fails with EPIPE. Not SIG_IGN, as the ignored signal is inherited by the executed programs
! 216: static void SIGPIPE_handler(int /*sig*/){}
1.201 paf 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
1.375 moko 329: #ifdef CODE_CACHE
330: Code_cache_manager::start();
331: #endif
1.378 moko 332: r.core(config_filespec, String::Empty);
1.375 moko 333: #ifdef CODE_CACHE
334: Code_cache_manager::finish(r);
335: #endif
1.317 moko 336: }
337:
338: static void connection_handler(SAPI_Info_HTTPD &info, HTTPD_Connection &connection) {
1.341 moko 339: Request_info request_info;
1.358 moko 340: RequestInfoController ric(&request_info, &info);
1.341 moko 341:
1.325 moko 342: try {
1.336 moko 343: if(!connection.read_header())
1.332 moko 344: return; // ignore "void" connections
1.325 moko 345: info.populate_env();
346:
1.373 moko 347: request_info.set_document_root(full_disk_path());
1.325 moko 348: request_info.path_translated = filespec_to_process;
349: request_info.method = connection.method();
350: request_info.query_string = connection.query();
351: request_info.uri = request_info.strip_absolute_uri(connection.uri());
352: request_info.content_type = connection.content_type();
353: request_info.content_length = (size_t)connection.content_length();
354: request_info.cookie = info.get_env("HTTP_COOKIE");
355: request_info.mail_received = false;
356: request_info.argv = argv_extra;
1.294 moko 357:
1.325 moko 358: // prepare to process request
359: Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT));
1.379 moko 360: WebSocket websocket(connection);
361: r.websocket=&websocket;
1.330 moko 362: // process the request
1.378 moko 363: r.core(config_filespec, main_method_name, &httpd_class_name);
1.361 moko 364: } catch(const Exception& e) { // exception in connection handling
1.325 moko 365: SAPI::log(info, "%s", e.comment());
1.354 moko 366: const char* status = info.exception_http_status(e.type());
1.358 moko 367: if(*status)
1.337 moko 368: SAPI::send_error(info, e.comment(), status);
1.325 moko 369: }
370: }
1.317 moko 371:
1.328 moko 372: #ifdef _MSC_VER
373: DWORD WINAPI connection_thread(void *arg){
374: #else
1.325 moko 375: static void *connection_thread(void *arg){
1.328 moko 376: #endif
1.382 moko 377: Temp_gc_references gc_references; // for pointers GC does not see, the very start of the thread
378:
1.325 moko 379: HTTPD_Connection &connection=*(HTTPD_Connection*)arg;
380: SAPI_Info_HTTPD info(connection);
1.294 moko 381:
1.325 moko 382: try {
383: connection_handler(info, connection);
384: } catch(const Exception& e) { // exception in send_error
1.358 moko 385: pa_log("%s", e.comment());
1.294 moko 386: }
1.325 moko 387:
388: delete(&connection);
1.328 moko 389: return 0;
1.294 moko 390: }
391:
1.384 moko 392: static void reject_connection(HTTPD_Connection &connection) {
393: // main thread only
394: static unsigned long total=0;
395: static time_t logged=0;
396:
397: total++;
398: time_t now=time(0);
399: if(now!=logged){ // not more than once a second
400: logged=now;
401: pa_log("max-connections limit %d reached, rejecting connection from %s (%lu rejected in total)", HTTPD_Server::max_connections, connection.remote_addr, total);
402: }
403:
404: SAPI_Info_HTTPD info(connection);
405: SAPI::send_error(info, "too many connections", "503");
406: }
407:
1.317 moko 408: static void httpd_mode() {
1.358 moko 409: config_handler(*sapi_info);
1.325 moko 410:
1.346 moko 411: SOCKET sock = HTTPD_Server::bind(httpd_host_port);
1.294 moko 412:
1.297 moko 413: while(1){
1.328 moko 414: #ifndef _MSC_VER
1.325 moko 415: pid_t pid=1;
1.328 moko 416: #endif
1.303 moko 417: try {
418: HTTPD_Connection connection;
1.383 moko 419: bool accepted=connection.accept(sock, 500);
420: #ifndef _MSC_VER
421: if(HTTPD_Server::mode == HTTPD_Server::PARALLEL)
422: while (waitpid((pid_t)(-1), 0, WNOHANG) > 0)
423: HTTPD_Server::track_connection(-1); // the child has exited, some of them while we were waiting
424: #endif
425: if(!accepted)
1.303 moko 426: continue;
427:
1.383 moko 428: if(HTTPD_Server::too_many_connections()){
1.384 moko 429: reject_connection(connection); // no thread or process is started
1.383 moko 430: continue;
431: }
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");
1.383 moko 438: connection.sock=INVALID_SOCKET; // thread owns the connection now
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);
1.383 moko 449: connection.sock=INVALID_SOCKET; // thread owns the connection now
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);
1.383 moko 456: if(pid>0){
457: closesocket(connection.sock); // parent should close connection.sock as well
458: connection.sock=INVALID_SOCKET; // child owns the connection now
459: continue;
460: }
1.325 moko 461: #endif
462: case HTTPD_Server::SEQUENTIAL: // and fork child
1.303 moko 463:
1.325 moko 464: SAPI_Info_HTTPD info(connection);
465: connection_handler(info, connection);
1.303 moko 466: }
1.383 moko 467: // SEQUENTIAL or error: closing connection socket in HTTPD_Connection destructor
1.303 moko 468: } catch(const Exception& e) { // exception in accept or send_error
1.358 moko 469: pa_log("%s", e.comment());
1.294 moko 470: }
1.325 moko 471:
1.328 moko 472: #ifndef _MSC_VER
1.325 moko 473: if(pid==0) // fork child
474: exit(0);
1.328 moko 475: #endif
1.294 moko 476: }
477: }
1.231 paf 478:
1.294 moko 479: /** main workhorse */
480:
1.316 moko 481: static void real_parser_handler(bool cgi) {
1.280 moko 482: // init libraries
1.218 paf 483: pa_globals_init();
1.294 moko 484:
1.296 moko 485: if(httpd_host_port){
1.308 moko 486: httpd_mode();
1.294 moko 487: }
488:
489: const char* request_method=getenv("REQUEST_METHOD");
490:
1.367 moko 491: if(!filespec_to_process){
1.376 moko 492: SAPI::send_error(*sapi_info, "Parser/" PARSER_VERSION_WITH_FEATURES);
1.367 moko 493: exit(1);
494: }
495:
1.297 moko 496: // global request info
1.341 moko 497: Request_info request_info;
1.358 moko 498: RequestInfoController ric(&request_info, sapi_info);
1.341 moko 499:
1.283 moko 500: request_info.path_translated = filespec_to_process;
501: request_info.method = request_method ? request_method : "GET";
502: request_info.query_string = MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(getenv("QUERY_STRING"));
503:
1.122 parser 504: if(cgi) {
1.284 moko 505: // obligatory
1.218 paf 506: const char* path_info=getenv("PATH_INFO");
1.214 paf 507: if(!path_info)
1.349 moko 508: SAPI::die("parser3: illegal CGI call (missing PATH_INFO)");
1.283 moko 509:
1.373 moko 510: const char* document_root = getenv("DOCUMENT_ROOT");
511: if(!document_root) {
1.285 moko 512: // IIS or fcgiwrap minimalistic setup
513: ssize_t prefix_len = strlen(filespec_to_process) - strlen(path_info);
514: if(prefix_len < 0 || strcmp(filespec_to_process + prefix_len, path_info) != 0)
1.349 moko 515: SAPI::die("parser3: illegal CGI call (invalid PATH_INFO in reinventing DOCUMENT_ROOT)");
1.285 moko 516:
1.373 moko 517: document_root = pa_strdup(filespec_to_process, prefix_len);
1.283 moko 518: }
1.373 moko 519: request_info.set_document_root(document_root);
1.214 paf 520:
1.285 moko 521: request_info.uri = request_info.strip_absolute_uri(getenv("REQUEST_URI"));
1.283 moko 522: if(request_info.uri) { // apache & others stuck to standards
1.284 moko 523: // another obligatory
1.285 moko 524: const char* script_name = getenv("SCRIPT_NAME");
1.284 moko 525: if(!script_name)
1.349 moko 526: SAPI::die("parser3: illegal CGI call (missing SCRIPT_NAME)");
1.214 paf 527: /*
528: http://parser3/env.html?123 =OK
529: $request:uri=/env.html?123
530: REQUEST_URI='/env.html?123'
531: SCRIPT_NAME='/cgi-bin/parser3'
532: PATH_INFO='/env.html'
1.285 moko 533:
1.214 paf 534: http://parser3/cgi-bin/parser3/env.html?123 =ERROR
535: $request:uri=/cgi-bin/parser3/env.html?123
536: REQUEST_URI='/cgi-bin/parser3/env.html?123'
537: SCRIPT_NAME='/cgi-bin/parser3'
538: PATH_INFO='/env.html'
539: */
1.285 moko 540: size_t script_name_len = strlen(script_name);
541: size_t uri_len = strlen(request_info.uri);
1.283 moko 542: 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 543: SAPI::die("parser3: illegal CGI call (REQUEST_URI starts with SCRIPT_NAME)");
1.284 moko 544: } else { // fcgiwrap minimalistic setup
1.315 moko 545: request_info.uri = request_info.query_string && *request_info.query_string ? pa_strcat(path_info, "?", request_info.query_string) : path_info;
1.214 paf 546: }
1.283 moko 547: } else{
1.373 moko 548: request_info.set_document_root(full_disk_path());
1.285 moko 549: request_info.uri = "";
1.283 moko 550: }
1.122 parser 551:
1.283 moko 552: request_info.content_type = getenv("CONTENT_TYPE");
1.348 moko 553: request_info.content_length = cgi ? (size_t)pa_atoul(getenv("CONTENT_LENGTH")) : 0; // only SAPI_Info_CGI can read POST
1.283 moko 554: request_info.cookie = getenv("HTTP_COOKIE");
555: request_info.mail_received = mail_received;
1.184 paf 556:
1.319 moko 557: request_info.argv = argv_extra;
1.245 misha 558:
1.233 paf 559: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.362 moko 560: 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 561: #endif
562:
1.256 misha 563: {
1.377 moko 564: // prepare to process request
565: Request r(*sapi_info, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS);
1.297 moko 566: // initing ::request ptr for signal handlers
1.323 moko 567: RequestController rc(&r);
1.256 misha 568: // process the request
1.378 moko 569: r.core(locate_config(config_filespec, parser3_filespec));
1.303 moko 570: // clearing ::request in RequestController destructor to prevent signal handlers from accessing invalid memory
1.377 moko 571: // then the request is destroyed, before the libraries are unloaded: its pool cleanups call them (memcached)
1.122 parser 572: }
1.231 paf 573:
1.280 moko 574: // finalize libraries
1.225 paf 575: pa_globals_done();
1.218 paf 576: }
577:
1.231 paf 578: #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION
1.316 moko 579: static const Exception call_real_parser_handler__do_PEH_return_it(bool cgi) {
1.231 paf 580: try {
1.316 moko 581: real_parser_handler(cgi);
1.231 paf 582: } catch(const Exception& e) {
583: return e;
1.122 parser 584: }
1.231 paf 585:
586: return Exception();
1.122 parser 587: }
1.272 moko 588:
1.316 moko 589: static void call_real_parser_handler__supress_system_exception(bool cgi) {
1.231 paf 590: Exception parser_exception;
591: LPEXCEPTION_POINTERS system_exception=0;
1.122 parser 592:
1.231 paf 593: __try {
1.316 moko 594: parser_exception=call_real_parser_handler__do_PEH_return_it(cgi);
1.288 moko 595: } __except ( (system_exception=GetExceptionInformation()), EXCEPTION_EXECUTE_HANDLER) {
1.231 paf 596: if(system_exception)
597: if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
1.371 moko 598: throw Exception("system", 0, "0x%08X at %p", er->ExceptionCode, er->ExceptionAddress);
1.218 paf 599: else
1.272 moko 600: throw Exception("system", 0, "<no exception record>");
1.218 paf 601: else
1.272 moko 602: throw Exception("system", 0, "<no exception information>");
1.231 paf 603: }
604:
605: if(parser_exception)
606: throw Exception(parser_exception);
607: }
1.273 moko 608:
609: #define REAL_PARSER_HANDLER call_real_parser_handler__supress_system_exception
610: #else
611: #define REAL_PARSER_HANDLER real_parser_handler
1.218 paf 612: #endif
1.131 paf 613:
1.364 moko 614: static void usage(const char* message=NULL) {
615: if(message){
616: fprintf(stderr, message, parser3_filespec);
617: }
618:
1.188 paf 619: printf(
1.235 paf 620: "Parser/%s\n"
1.368 moko 621: "Copyright (c) 2001-2026 Art. Lebedev Studio (https://www.artlebedev.com)\n"
1.350 moko 622: "Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>\n"
1.184 paf 623: "\n"
1.307 moko 624: "Usage: %s [options] [file]\n"
1.184 paf 625: "Options are:\n"
1.185 paf 626: #ifdef WITH_MAILRECEIVE
1.193 paf 627: " -m Parse mail, put received letter to $mail:received\n"
1.184 paf 628: #endif
1.193 paf 629: " -f config_file Use this config file (/path/to/auto.p)\n"
1.364 moko 630: " -l log_file Use this log file (/path/to/parser3.log)\n"
1.296 moko 631: " -p [host:]port Start web server on this port\n"
1.272 moko 632: " -h Display usage information (this message)\n",
1.376 moko 633: PARSER_VERSION_WITH_FEATURES,
1.364 moko 634: parser3_filespec ? parser3_filespec : "parser3" );
1.184 paf 635: exit(EINVAL);
636: }
637:
1.364 moko 638: #define ARG_REQUIRED \
639: if(c[1] || !*(++carg)){ \
640: fprintf(stderr, "%s: option '%c' requires an argument\n", parser3_filespec, *c); \
641: usage(); \
642: }
1.294 moko 643:
1.249 misha 644: int main(int argc, char *argv[]) {
1.382 moko 645: Temp_gc_references gc_references; // for pointers GC does not see
646:
1.233 paf 647: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.362 moko 648: pa_log("main: entry");
1.233 paf 649: #endif
1.217 paf 650:
1.364 moko 651: if(!argc || !argv[0])
652: usage();
1.373 moko 653: parser3_filespec = backslashes_to_slashes(argv[0]);
1.364 moko 654:
1.294 moko 655: umask(2);
656:
657: // were we started as CGI?
1.316 moko 658: bool cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION");
1.365 moko 659: if(!cgi){
1.358 moko 660: sapi_info = &sapi_console;
1.365 moko 661: parser3_mode = "console";
662: }
1.294 moko 663:
1.203 paf 664: #ifdef SIGPIPE
1.325 moko 665: signal(SIGPIPE, SIGPIPE_handler);
1.203 paf 666: #endif
1.354 moko 667: char* raw_filespec_to_process = NULL;
1.210 paf 668: if(cgi) {
1.184 paf 669: raw_filespec_to_process=getenv("PATH_TRANSLATED");
1.319 moko 670: argv_extra=argv + 1;
1.210 paf 671: } else {
1.364 moko 672: char** carg = argv + 1;
673: for(;*carg; carg++){
674: if((*carg)[0] != '-')
1.184 paf 675: break;
1.245 misha 676:
1.364 moko 677: for(char* c=(*carg)+1; *c; c++){
678: switch (*c) {
1.245 misha 679: case 'h':
1.364 moko 680: usage();
1.245 misha 681: break;
682: case 'f':
1.364 moko 683: ARG_REQUIRED;
684: config_filespec=*carg;
1.245 misha 685: break;
1.362 moko 686: case 'l':
1.364 moko 687: ARG_REQUIRED;
688: log_filespec=*carg;
1.362 moko 689: break;
1.294 moko 690: case 'p':
1.364 moko 691: ARG_REQUIRED;
692: httpd_host_port=*carg;
1.365 moko 693: parser3_mode="httpd";
1.294 moko 694: break;
1.185 paf 695: #ifdef WITH_MAILRECEIVE
1.245 misha 696: case 'm':
697: mail_received=true;
1.365 moko 698: parser3_mode="mail";
1.245 misha 699: break;
700: #endif
701: default:
1.364 moko 702: fprintf(stderr, "%s: invalid option '%c'\n", parser3_filespec, *c);
703: usage();
1.245 misha 704: break;
705: }
1.184 paf 706: }
707: }
1.245 misha 708:
1.364 moko 709: if (*carg) {
710: raw_filespec_to_process=*carg;
1.294 moko 711: } else {
1.364 moko 712: if(!httpd_host_port)
713: usage("%s: file not specified\n");
1.10 paf 714: }
1.294 moko 715:
1.364 moko 716: if (httpd_host_port && mail_received)
717: usage("%s: -p and -m options should not be used together\n");
1.310 moko 718:
1.364 moko 719: argv_extra=carg;
1.10 paf 720: }
721:
1.374 moko 722: // prepare full disk path log_filespec here, as logging must not allocate
723: if(!log_filespec)
724: log_filespec=getenv(PARSER_LOG_ENV_NAME);
725: if(!log_filespec)
726: log_filespec=getenv(REDIRECT_PREFIX PARSER_LOG_ENV_NAME);
1.385 moko 727: if(log_filespec && strcmp(log_filespec, "-")) // "-" is stderr
1.374 moko 728: log_filespec=full_disk_path(log_filespec);
729:
1.264 moko 730: #ifdef _MSC_VER
1.100 parser 731: setmode(fileno(stdin), _O_BINARY);
732: setmode(fileno(stdout), _O_BINARY);
733: setmode(fileno(stderr), _O_BINARY);
734: #endif
735:
1.218 paf 736: #if defined(_MSC_VER) && defined(_DEBUG)
1.148 paf 737: // Get current flag
738: int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG );
739:
740: // Turn on leak-checking bit
741: tmpFlag |= _CRTDBG_LEAK_CHECK_DF;
742:
743: // Set flag to the new value
744: _CrtSetDbgFlag( tmpFlag );
1.138 paf 745:
1.218 paf 746: _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE );
747: _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR );
1.138 paf 748: #endif
749:
1.318 moko 750: try { // global try
751: if(raw_filespec_to_process && *raw_filespec_to_process){
1.351 moko 752: filespec_to_process=full_disk_path(raw_filespec_to_process);
1.318 moko 753: }
1.10 paf 754:
1.316 moko 755: REAL_PARSER_HANDLER(cgi);
1.361 moko 756: } catch(const Exception& e) { // exception in config_handler
1.359 moko 757: SAPI::log(*sapi_info, "%s", e.comment());
758: SAPI::send_error(*sapi_info, e.comment(), strcmp(e.type(), "file.missing") ? "500" : "404");
1.16 paf 759: }
1.109 parser 760:
1.233 paf 761: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.362 moko 762: pa_log("main: successful return");
1.233 paf 763: #endif
1.358 moko 764: return sapi_info->http_response_code < 100 ? sapi_info->http_response_code : 0;
1.1 paf 765: }
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