Annotation of parser3/src/targets/cgi/parser3.C, revision 1.384
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:
1.384 ! moko 8: volatile const char * IDENT_PARSER3_C="$Id: parser3.C,v 1.383 2026/10/26 19:06:51 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:
90: static void pa_log(const char* fmt, va_list args) {
91: // use no memory [so that we could log out-of-memory error]
92: const char* slog=parser3_log_filespec();
93: FILE *f=strcmp(slog,"-") ? fopen(slog, "at") : stderr;
1.363 moko 94:
1.192 paf 95: // fallback to stderr
1.362 moko 96: if(!f)
1.61 paf 97: f=stderr;
1.208 paf 98:
99: setbuf(f, 0); // stderr stream is unbuffered by default, but still...
1.61 paf 100:
101: // prefix
102: time_t t=time(0);
1.381 moko 103: #ifdef _MSC_VER
104: const char* stamp=ctime(&t); // the buffer is per thread
105: #else
106: char stamp_buffer[32]; // the buffer of ctime() is shared by the threads
107: const char* stamp=ctime_r(&t, stamp_buffer);
108: #endif
109: if(stamp) { // never saw that
1.173 paf 110: if(size_t len=strlen(stamp)) // saw once stamp being =""
1.333 moko 111: fprintf(f, "[%.*s] [%u] ", (int)len-1, stamp, (unsigned int)pa_get_thread_id() );
1.171 paf 112: }
1.366 moko 113:
1.61 paf 114: // message
1.246 misha 115: char buf[MAX_LOG_STRING];
1.380 moko 116: size_t size=pa_vsnprintf(buf, MAX_LOG_STRING, fmt, args);
1.246 misha 117: size=remove_crlf(buf, buf+size);
1.239 paf 118: fwrite(buf, size, 1, f);
119:
1.341 moko 120: if(request_info_4log && request_info_4log->method) {
121: 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 122: } else
123: fputs(" [no request info]\n", f);
1.61 paf 124:
1.362 moko 125: if(f!=stderr)
1.61 paf 126: fclose(f);
1.85 parser 127: else
128: fflush(f);
1.124 parser 129: }
1.272 moko 130:
1.335 moko 131: void pa_log(const char* fmt, ...) {
1.272 moko 132: va_list args;
1.233 paf 133: va_start(args,fmt);
1.335 moko 134: pa_log(fmt, args);
1.233 paf 135: va_end(args);
136: }
1.124 parser 137:
1.322 moko 138: // appends to parser3.log located next to the config file if openable, to stderr otherwize
1.218 paf 139: void SAPI::log(SAPI_Info&, const char* fmt, ...) {
1.272 moko 140: va_list args;
1.124 parser 141: va_start(args,fmt);
1.335 moko 142: pa_log(fmt, args);
1.124 parser 143: va_end(args);
144: }
145:
1.290 moko 146: void SAPI::die(const char* fmt, ...) {
147: va_list args;
148:
149: // logging first, first vsnprintf
150: va_start(args,fmt);
1.335 moko 151: pa_log(fmt, args);
1.290 moko 152: va_end(args);
1.138 paf 153:
1.290 moko 154: // inform user, second vsnprintf
155: va_start(args, fmt);
1.299 moko 156: char message[MAX_STRING];
1.380 moko 157: pa_vsnprintf(message, MAX_STRING, fmt, args);
1.134 paf 158:
1.358 moko 159: SAPI::send_error(sapi_info_4log ? *sapi_info_4log : *sapi_info, message);
1.290 moko 160: exit(1);
1.258 moko 161: // va_end(args);
1.28 paf 162: }
163:
1.358 moko 164: void SAPI::send_error(SAPI_Info& info, const char *exception_cstr, const char *status){
165: info.send_error(exception_cstr, status);
166: }
167:
1.294 moko 168: char* SAPI::Env::get(SAPI_Info& info, const char* name) {
169: return info.get_env(name);
1.218 paf 170: }
171:
1.305 moko 172: bool SAPI::Env::set(SAPI_Info& info, const char* name, const char* value) {
173: return info.set_env(name, value);
174: }
175:
1.294 moko 176: const char* const *SAPI::Env::get(SAPI_Info& info) {
177: return info.get_env();
1.180 paf 178: }
179:
1.354 moko 180: size_t SAPI::read_post(SAPI_Info& info, char* buf, size_t max_bytes) {
1.294 moko 181: return info.read_post(buf, max_bytes);
1.10 paf 182: }
183:
1.294 moko 184: void SAPI::add_header_attribute(SAPI_Info& info, const char* dont_store_key, const char* dont_store_value) {
1.358 moko 185: info.add_header(dont_store_key, dont_store_value);
1.19 paf 186: }
187:
1.360 moko 188: void SAPI::send_headers(SAPI_Info& info) {
1.358 moko 189: info.send_headers();
1.30 paf 190: }
1.20 paf 191:
1.360 moko 192: void SAPI::clear_headers(SAPI_Info& info) {
1.361 moko 193: info.clear_headers();
1.360 moko 194: }
195:
1.294 moko 196: size_t SAPI::send_body(SAPI_Info& info, const void *buf, size_t size) {
197: return info.send_body(buf, size);
1.58 paf 198: }
199:
1.354 moko 200: static const char* full_disk_path(const char* file_name = "") {
1.374 moko 201: const char* path=backslashes_to_slashes(file_name);
202: 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
203: return path;
1.373 moko 204: char cwd[MAX_STRING];
1.374 moko 205: return pa_strcat(backslashes_to_slashes(getcwd(cwd, MAX_STRING) ? cwd : ""), "/", path);
1.97 parser 206: }
207:
1.218 paf 208: static void log_signal(const char* signal_name) {
1.358 moko 209: pa_log("%s received %s processing request", signal_name, request ? "while" : "before or after");
1.205 paf 210: }
211:
1.201 paf 212: #ifdef SIGPIPE
1.243 misha 213: #define SIGPIPE_NAME "SIGPIPE"
214: static const String sigpipe_name(SIGPIPE_NAME);
1.205 paf 215: static void SIGPIPE_handler(int /*sig*/){
1.243 misha 216: Value* sigpipe=0;
217: if(request)
1.251 misha 218: sigpipe=request->main_class.get_element(sigpipe_name);
1.243 misha 219: if(sigpipe && sigpipe->as_bool())
1.244 misha 220: log_signal(SIGPIPE_NAME);
1.243 misha 221:
1.201 paf 222: if(request)
1.276 moko 223: request->set_skip(Request::SKIP_INTERRUPTED);
1.201 paf 224: }
225: #endif
226:
1.322 moko 227: // requires pa_thread_request() in entry_exists() under Windows
1.354 moko 228: static const char* locate_config(const char* config_filespec_option, const char* executable_path){
1.322 moko 229: filespec_4log=config_filespec_option;
230: if(!filespec_4log)
1.321 moko 231: filespec_4log=getenv(PARSER_CONFIG_ENV_NAME);
1.322 moko 232: if(!filespec_4log)
233: filespec_4log=getenv(REDIRECT_PREFIX PARSER_CONFIG_ENV_NAME);
234: if(!filespec_4log){
1.373 moko 235: const char* exec_dir_pos = strrchr(executable_path, '/');
1.322 moko 236: #ifdef SYSTEM_CONFIG_FILE
1.353 moko 237: if(exec_dir_pos){
238: #endif
1.374 moko 239: // next to the executable; full path should be used to avoid "parser already configured"
240: filespec_4log=full_disk_path(!exec_dir_pos || (exec_dir_pos==executable_path+1 && *executable_path=='.')
241: ? AUTO_FILE_NAME // parser3 or ./parser3
242: : pa_strcat(pa_strdup(executable_path, exec_dir_pos - executable_path), "/" AUTO_FILE_NAME));
1.353 moko 243: if(entry_exists(filespec_4log))
244: return filespec_4log;
245: #ifdef SYSTEM_CONFIG_FILE
246: }
1.322 moko 247: if(entry_exists(SYSTEM_CONFIG_FILE)){
248: filespec_4log=NULL;
249: return SYSTEM_CONFIG_FILE;
250: }
251: #endif
252: return NULL;
1.321 moko 253: }
1.374 moko 254: // when -f auto.p full path should be used to avoid "parser already configured"
255: return filespec_4log=full_disk_path(filespec_4log);
1.321 moko 256: }
257:
1.227 paf 258: #ifdef WIN32
1.354 moko 259: static const char* maybe_reconstruct_IIS_status_in_qs(const char* original) {
1.228 paf 260: // 404;http://servername/page[?param=value...]
1.227 paf 261: // ';' should be urlencoded by HTTP standard, so we shouldn't get it from browser
262: // and can consider that as an indication that this is IIS way to report errors
263:
1.272 moko 264: if(original && isdigit((unsigned char)original[0]) && isdigit((unsigned char)original[1]) && isdigit((unsigned char)original[2]) && original[3]==';'){
1.227 paf 265: size_t original_len=strlen(original);
1.272 moko 266: char* reconstructed=new(PointerFreeGC) char[original_len +12/*IIS-STATUS=&*/ +14/*IIS-DOCUMENT=&*/ +1];
1.227 paf 267: char* cur=reconstructed;
268: memcpy(cur, "IIS-STATUS=", 11); cur+=11;
269: memcpy(cur, original, 3); cur+=3;
270: *cur++='&';
271:
1.228 paf 272: const char* qmark_at=strchr(original, '?');
1.227 paf 273: memcpy(cur, "IIS-DOCUMENT=", 13); cur+=13;
274: {
1.272 moko 275: size_t value_len=(qmark_at ? qmark_at-original : original_len)-4;
1.227 paf 276: memcpy(cur, original+4, value_len); cur+=value_len;
277: }
278:
279: if(qmark_at) {
280: *cur++='&';
281: strcpy(cur, qmark_at+1/*skip ? itself*/);
282: } else
283: *cur=0;
284:
285: return reconstructed;
286: }
287:
288: return original;
289: }
1.283 moko 290:
291: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) maybe_reconstruct_IIS_status_in_qs(s)
1.354 moko 292:
1.342 moko 293: #else
1.354 moko 294:
1.283 moko 295: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) s
1.354 moko 296:
1.227 paf 297: #endif
298:
1.256 misha 299: class RequestController {
300: public:
301: RequestController(Request* r){
1.341 moko 302: request=r;
1.256 misha 303: }
304: ~RequestController(){
1.341 moko 305: request=0;
306: }
307: };
308:
309: class RequestInfoController {
310: public:
1.358 moko 311: RequestInfoController(Request_info* rinfo, SAPI_Info* sinfo){
1.341 moko 312: request_info_4log=rinfo;
1.358 moko 313: sapi_info_4log=sinfo;
1.341 moko 314: }
315: ~RequestInfoController(){
316: request_info_4log=0;
1.358 moko 317: sapi_info_4log=0;
1.256 misha 318: }
319: };
320:
1.342 moko 321: /** httpd support */
322: static const String httpd_class_name("httpd");
323:
1.317 moko 324: static void config_handler(SAPI_Info &info) {
1.341 moko 325: Request_info request_info;
1.358 moko 326: RequestInfoController ric(&request_info, &info);
1.341 moko 327:
1.373 moko 328: request_info.set_document_root(full_disk_path());
1.317 moko 329: request_info.uri = "";
1.319 moko 330: request_info.argv = argv_extra;
1.317 moko 331:
332: // prepare to process request
1.323 moko 333: Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT));
1.330 moko 334: // only once
335: config_filespec = locate_config(config_filespec, parser3_filespec);
336: // process main auto.p only
1.375 moko 337: #ifdef CODE_CACHE
338: Code_cache_manager::start();
339: #endif
1.378 moko 340: r.core(config_filespec, String::Empty);
1.375 moko 341: #ifdef CODE_CACHE
342: Code_cache_manager::finish(r);
343: #endif
1.317 moko 344: }
345:
346: static void connection_handler(SAPI_Info_HTTPD &info, HTTPD_Connection &connection) {
1.341 moko 347: Request_info request_info;
1.358 moko 348: RequestInfoController ric(&request_info, &info);
1.341 moko 349:
1.325 moko 350: try {
1.336 moko 351: if(!connection.read_header())
1.332 moko 352: return; // ignore "void" connections
1.325 moko 353: info.populate_env();
354:
1.373 moko 355: request_info.set_document_root(full_disk_path());
1.325 moko 356: request_info.path_translated = filespec_to_process;
357: request_info.method = connection.method();
358: request_info.query_string = connection.query();
359: request_info.uri = request_info.strip_absolute_uri(connection.uri());
360: request_info.content_type = connection.content_type();
361: request_info.content_length = (size_t)connection.content_length();
362: request_info.cookie = info.get_env("HTTP_COOKIE");
363: request_info.mail_received = false;
364: request_info.argv = argv_extra;
1.294 moko 365:
1.325 moko 366: // prepare to process request
367: Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT));
1.379 moko 368: WebSocket websocket(connection);
369: r.websocket=&websocket;
1.330 moko 370: // process the request
1.378 moko 371: r.core(config_filespec, main_method_name, &httpd_class_name);
1.361 moko 372: } catch(const Exception& e) { // exception in connection handling
1.325 moko 373: SAPI::log(info, "%s", e.comment());
1.354 moko 374: const char* status = info.exception_http_status(e.type());
1.358 moko 375: if(*status)
1.337 moko 376: SAPI::send_error(info, e.comment(), status);
1.325 moko 377: }
378: }
1.317 moko 379:
1.328 moko 380: #ifdef _MSC_VER
381: DWORD WINAPI connection_thread(void *arg){
382: #else
1.325 moko 383: static void *connection_thread(void *arg){
1.328 moko 384: #endif
1.382 moko 385: Temp_gc_references gc_references; // for pointers GC does not see, the very start of the thread
386:
1.325 moko 387: HTTPD_Connection &connection=*(HTTPD_Connection*)arg;
388: SAPI_Info_HTTPD info(connection);
1.294 moko 389:
1.325 moko 390: try {
391: connection_handler(info, connection);
392: } catch(const Exception& e) { // exception in send_error
1.358 moko 393: pa_log("%s", e.comment());
1.294 moko 394: }
1.325 moko 395:
396: delete(&connection);
1.328 moko 397: return 0;
1.294 moko 398: }
399:
1.384 ! moko 400: static void reject_connection(HTTPD_Connection &connection) {
! 401: // main thread only
! 402: static unsigned long total=0;
! 403: static time_t logged=0;
! 404:
! 405: total++;
! 406: time_t now=time(0);
! 407: if(now!=logged){ // not more than once a second
! 408: logged=now;
! 409: pa_log("max-connections limit %d reached, rejecting connection from %s (%lu rejected in total)", HTTPD_Server::max_connections, connection.remote_addr, total);
! 410: }
! 411:
! 412: SAPI_Info_HTTPD info(connection);
! 413: SAPI::send_error(info, "too many connections", "503");
! 414: }
! 415:
1.317 moko 416: static void httpd_mode() {
1.358 moko 417: config_handler(*sapi_info);
1.325 moko 418:
1.346 moko 419: SOCKET sock = HTTPD_Server::bind(httpd_host_port);
1.294 moko 420:
1.327 moko 421: #ifdef SIGPIPE
1.325 moko 422: signal(SIGPIPE, SIG_IGN);
423: #endif
1.317 moko 424:
1.297 moko 425: while(1){
1.328 moko 426: #ifndef _MSC_VER
1.325 moko 427: pid_t pid=1;
1.328 moko 428: #endif
1.303 moko 429: try {
430: HTTPD_Connection connection;
1.383 moko 431: bool accepted=connection.accept(sock, 500);
432: #ifndef _MSC_VER
433: if(HTTPD_Server::mode == HTTPD_Server::PARALLEL)
434: while (waitpid((pid_t)(-1), 0, WNOHANG) > 0)
435: HTTPD_Server::track_connection(-1); // the child has exited, some of them while we were waiting
436: #endif
437: if(!accepted)
1.303 moko 438: continue;
439:
1.383 moko 440: if(HTTPD_Server::too_many_connections()){
1.384 ! moko 441: reject_connection(connection); // no thread or process is started
1.383 moko 442: continue;
443: }
444:
1.325 moko 445: switch (HTTPD_Server::mode) {
446: case HTTPD_Server::MULTITHREADED:
1.328 moko 447: #ifdef _MSC_VER
448: if (!GC_CreateThread(0, 0, connection_thread, new HTTPD_Connection(connection), 0, 0))
449: throw Exception("httpd.fork", 0, "thread creation failed");
1.383 moko 450: connection.sock=INVALID_SOCKET; // thread owns the connection now
1.328 moko 451: break;
452: #else
1.339 moko 453: #ifdef HAVE_TLS
1.325 moko 454: pthread_t thread;
455: pthread_attr_t attr;
456: pthread_attr_init(&attr);
457: pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
458:
459: if(int result=GC_pthread_create(&thread, &attr, connection_thread, new HTTPD_Connection(connection)))
460: throw Exception("httpd.fork", 0, "thread creation failed (%d)", result);
1.383 moko 461: connection.sock=INVALID_SOCKET; // thread owns the connection now
1.325 moko 462: break;
1.339 moko 463: #endif
1.325 moko 464: case HTTPD_Server::PARALLEL:
465: pid=fork();
466: if(pid<0)
467: throw Exception("httpd.fork", 0, "fork failed: %s (%d)", strerror(errno), errno);
1.383 moko 468: if(pid>0){
469: closesocket(connection.sock); // parent should close connection.sock as well
470: connection.sock=INVALID_SOCKET; // child owns the connection now
471: continue;
472: }
1.325 moko 473: #endif
474: case HTTPD_Server::SEQUENTIAL: // and fork child
1.303 moko 475:
1.325 moko 476: SAPI_Info_HTTPD info(connection);
477: connection_handler(info, connection);
1.303 moko 478: }
1.383 moko 479: // SEQUENTIAL or error: closing connection socket in HTTPD_Connection destructor
1.303 moko 480: } catch(const Exception& e) { // exception in accept or send_error
1.358 moko 481: pa_log("%s", e.comment());
1.294 moko 482: }
1.325 moko 483:
1.328 moko 484: #ifndef _MSC_VER
1.325 moko 485: if(pid==0) // fork child
486: exit(0);
1.328 moko 487: #endif
1.294 moko 488: }
489: }
1.231 paf 490:
1.294 moko 491: /** main workhorse */
492:
1.316 moko 493: static void real_parser_handler(bool cgi) {
1.280 moko 494: // init libraries
1.218 paf 495: pa_globals_init();
1.294 moko 496:
1.296 moko 497: if(httpd_host_port){
1.308 moko 498: httpd_mode();
1.294 moko 499: }
500:
501: const char* request_method=getenv("REQUEST_METHOD");
502:
1.367 moko 503: if(!filespec_to_process){
1.376 moko 504: SAPI::send_error(*sapi_info, "Parser/" PARSER_VERSION_WITH_FEATURES);
1.367 moko 505: exit(1);
506: }
507:
1.297 moko 508: // global request info
1.341 moko 509: Request_info request_info;
1.358 moko 510: RequestInfoController ric(&request_info, sapi_info);
1.341 moko 511:
1.283 moko 512: request_info.path_translated = filespec_to_process;
513: request_info.method = request_method ? request_method : "GET";
514: request_info.query_string = MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(getenv("QUERY_STRING"));
515:
1.122 parser 516: if(cgi) {
1.284 moko 517: // obligatory
1.218 paf 518: const char* path_info=getenv("PATH_INFO");
1.214 paf 519: if(!path_info)
1.349 moko 520: SAPI::die("parser3: illegal CGI call (missing PATH_INFO)");
1.283 moko 521:
1.373 moko 522: const char* document_root = getenv("DOCUMENT_ROOT");
523: if(!document_root) {
1.285 moko 524: // IIS or fcgiwrap minimalistic setup
525: ssize_t prefix_len = strlen(filespec_to_process) - strlen(path_info);
526: if(prefix_len < 0 || strcmp(filespec_to_process + prefix_len, path_info) != 0)
1.349 moko 527: SAPI::die("parser3: illegal CGI call (invalid PATH_INFO in reinventing DOCUMENT_ROOT)");
1.285 moko 528:
1.373 moko 529: document_root = pa_strdup(filespec_to_process, prefix_len);
1.283 moko 530: }
1.373 moko 531: request_info.set_document_root(document_root);
1.214 paf 532:
1.285 moko 533: request_info.uri = request_info.strip_absolute_uri(getenv("REQUEST_URI"));
1.283 moko 534: if(request_info.uri) { // apache & others stuck to standards
1.284 moko 535: // another obligatory
1.285 moko 536: const char* script_name = getenv("SCRIPT_NAME");
1.284 moko 537: if(!script_name)
1.349 moko 538: SAPI::die("parser3: illegal CGI call (missing SCRIPT_NAME)");
1.214 paf 539: /*
540: http://parser3/env.html?123 =OK
541: $request:uri=/env.html?123
542: REQUEST_URI='/env.html?123'
543: SCRIPT_NAME='/cgi-bin/parser3'
544: PATH_INFO='/env.html'
1.285 moko 545:
1.214 paf 546: http://parser3/cgi-bin/parser3/env.html?123 =ERROR
547: $request:uri=/cgi-bin/parser3/env.html?123
548: REQUEST_URI='/cgi-bin/parser3/env.html?123'
549: SCRIPT_NAME='/cgi-bin/parser3'
550: PATH_INFO='/env.html'
551: */
1.285 moko 552: size_t script_name_len = strlen(script_name);
553: size_t uri_len = strlen(request_info.uri);
1.283 moko 554: 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 555: SAPI::die("parser3: illegal CGI call (REQUEST_URI starts with SCRIPT_NAME)");
1.284 moko 556: } else { // fcgiwrap minimalistic setup
1.315 moko 557: request_info.uri = request_info.query_string && *request_info.query_string ? pa_strcat(path_info, "?", request_info.query_string) : path_info;
1.214 paf 558: }
1.283 moko 559: } else{
1.373 moko 560: request_info.set_document_root(full_disk_path());
1.285 moko 561: request_info.uri = "";
1.283 moko 562: }
1.122 parser 563:
1.283 moko 564: request_info.content_type = getenv("CONTENT_TYPE");
1.348 moko 565: request_info.content_length = cgi ? (size_t)pa_atoul(getenv("CONTENT_LENGTH")) : 0; // only SAPI_Info_CGI can read POST
1.283 moko 566: request_info.cookie = getenv("HTTP_COOKIE");
567: request_info.mail_received = mail_received;
1.184 paf 568:
1.319 moko 569: request_info.argv = argv_extra;
1.245 misha 570:
1.233 paf 571: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.362 moko 572: 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 573: #endif
574:
1.256 misha 575: {
1.377 moko 576: // prepare to process request
577: Request r(*sapi_info, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS);
1.297 moko 578: // initing ::request ptr for signal handlers
1.323 moko 579: RequestController rc(&r);
1.256 misha 580: // process the request
1.378 moko 581: r.core(locate_config(config_filespec, parser3_filespec));
1.303 moko 582: // clearing ::request in RequestController destructor to prevent signal handlers from accessing invalid memory
1.377 moko 583: // then the request is destroyed, before the libraries are unloaded: its pool cleanups call them (memcached)
1.122 parser 584: }
1.231 paf 585:
1.280 moko 586: // finalize libraries
1.225 paf 587: pa_globals_done();
1.218 paf 588: }
589:
1.231 paf 590: #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION
1.316 moko 591: static const Exception call_real_parser_handler__do_PEH_return_it(bool cgi) {
1.231 paf 592: try {
1.316 moko 593: real_parser_handler(cgi);
1.231 paf 594: } catch(const Exception& e) {
595: return e;
1.122 parser 596: }
1.231 paf 597:
598: return Exception();
1.122 parser 599: }
1.272 moko 600:
1.316 moko 601: static void call_real_parser_handler__supress_system_exception(bool cgi) {
1.231 paf 602: Exception parser_exception;
603: LPEXCEPTION_POINTERS system_exception=0;
1.122 parser 604:
1.231 paf 605: __try {
1.316 moko 606: parser_exception=call_real_parser_handler__do_PEH_return_it(cgi);
1.288 moko 607: } __except ( (system_exception=GetExceptionInformation()), EXCEPTION_EXECUTE_HANDLER) {
1.231 paf 608: if(system_exception)
609: if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
1.371 moko 610: throw Exception("system", 0, "0x%08X at %p", er->ExceptionCode, er->ExceptionAddress);
1.218 paf 611: else
1.272 moko 612: throw Exception("system", 0, "<no exception record>");
1.218 paf 613: else
1.272 moko 614: throw Exception("system", 0, "<no exception information>");
1.231 paf 615: }
616:
617: if(parser_exception)
618: throw Exception(parser_exception);
619: }
1.273 moko 620:
621: #define REAL_PARSER_HANDLER call_real_parser_handler__supress_system_exception
622: #else
623: #define REAL_PARSER_HANDLER real_parser_handler
1.218 paf 624: #endif
1.131 paf 625:
1.364 moko 626: static void usage(const char* message=NULL) {
627: if(message){
628: fprintf(stderr, message, parser3_filespec);
629: }
630:
1.188 paf 631: printf(
1.235 paf 632: "Parser/%s\n"
1.368 moko 633: "Copyright (c) 2001-2026 Art. Lebedev Studio (https://www.artlebedev.com)\n"
1.350 moko 634: "Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>\n"
1.184 paf 635: "\n"
1.307 moko 636: "Usage: %s [options] [file]\n"
1.184 paf 637: "Options are:\n"
1.185 paf 638: #ifdef WITH_MAILRECEIVE
1.193 paf 639: " -m Parse mail, put received letter to $mail:received\n"
1.184 paf 640: #endif
1.193 paf 641: " -f config_file Use this config file (/path/to/auto.p)\n"
1.364 moko 642: " -l log_file Use this log file (/path/to/parser3.log)\n"
1.296 moko 643: " -p [host:]port Start web server on this port\n"
1.272 moko 644: " -h Display usage information (this message)\n",
1.376 moko 645: PARSER_VERSION_WITH_FEATURES,
1.364 moko 646: parser3_filespec ? parser3_filespec : "parser3" );
1.184 paf 647: exit(EINVAL);
648: }
649:
1.364 moko 650: #define ARG_REQUIRED \
651: if(c[1] || !*(++carg)){ \
652: fprintf(stderr, "%s: option '%c' requires an argument\n", parser3_filespec, *c); \
653: usage(); \
654: }
1.294 moko 655:
1.249 misha 656: int main(int argc, char *argv[]) {
1.382 moko 657: Temp_gc_references gc_references; // for pointers GC does not see
658:
1.233 paf 659: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.362 moko 660: pa_log("main: entry");
1.233 paf 661: #endif
1.217 paf 662:
1.364 moko 663: if(!argc || !argv[0])
664: usage();
1.373 moko 665: parser3_filespec = backslashes_to_slashes(argv[0]);
1.364 moko 666:
1.294 moko 667: umask(2);
668:
669: // were we started as CGI?
1.316 moko 670: bool cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION");
1.365 moko 671: if(!cgi){
1.358 moko 672: sapi_info = &sapi_console;
1.365 moko 673: parser3_mode = "console";
674: }
1.294 moko 675:
1.203 paf 676: #ifdef SIGPIPE
1.325 moko 677: signal(SIGPIPE, SIGPIPE_handler);
1.203 paf 678: #endif
1.354 moko 679: char* raw_filespec_to_process = NULL;
1.210 paf 680: if(cgi) {
1.184 paf 681: raw_filespec_to_process=getenv("PATH_TRANSLATED");
1.319 moko 682: argv_extra=argv + 1;
1.210 paf 683: } else {
1.364 moko 684: char** carg = argv + 1;
685: for(;*carg; carg++){
686: if((*carg)[0] != '-')
1.184 paf 687: break;
1.245 misha 688:
1.364 moko 689: for(char* c=(*carg)+1; *c; c++){
690: switch (*c) {
1.245 misha 691: case 'h':
1.364 moko 692: usage();
1.245 misha 693: break;
694: case 'f':
1.364 moko 695: ARG_REQUIRED;
696: config_filespec=*carg;
1.245 misha 697: break;
1.362 moko 698: case 'l':
1.364 moko 699: ARG_REQUIRED;
700: log_filespec=*carg;
1.362 moko 701: break;
1.294 moko 702: case 'p':
1.364 moko 703: ARG_REQUIRED;
704: httpd_host_port=*carg;
1.365 moko 705: parser3_mode="httpd";
1.294 moko 706: break;
1.185 paf 707: #ifdef WITH_MAILRECEIVE
1.245 misha 708: case 'm':
709: mail_received=true;
1.365 moko 710: parser3_mode="mail";
1.245 misha 711: break;
712: #endif
713: default:
1.364 moko 714: fprintf(stderr, "%s: invalid option '%c'\n", parser3_filespec, *c);
715: usage();
1.245 misha 716: break;
717: }
1.184 paf 718: }
719: }
1.245 misha 720:
1.364 moko 721: if (*carg) {
722: raw_filespec_to_process=*carg;
1.294 moko 723: } else {
1.364 moko 724: if(!httpd_host_port)
725: usage("%s: file not specified\n");
1.10 paf 726: }
1.294 moko 727:
1.364 moko 728: if (httpd_host_port && mail_received)
729: usage("%s: -p and -m options should not be used together\n");
1.310 moko 730:
1.364 moko 731: argv_extra=carg;
1.10 paf 732: }
733:
1.374 moko 734: // prepare full disk path log_filespec here, as logging must not allocate
735: if(!log_filespec)
736: log_filespec=getenv(PARSER_LOG_ENV_NAME);
737: if(!log_filespec)
738: log_filespec=getenv(REDIRECT_PREFIX PARSER_LOG_ENV_NAME);
739: if(log_filespec)
740: log_filespec=full_disk_path(log_filespec);
741:
1.264 moko 742: #ifdef _MSC_VER
1.100 parser 743: setmode(fileno(stdin), _O_BINARY);
744: setmode(fileno(stdout), _O_BINARY);
745: setmode(fileno(stderr), _O_BINARY);
746: #endif
747:
1.218 paf 748: #if defined(_MSC_VER) && defined(_DEBUG)
1.148 paf 749: // Get current flag
750: int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG );
751:
752: // Turn on leak-checking bit
753: tmpFlag |= _CRTDBG_LEAK_CHECK_DF;
754:
755: // Set flag to the new value
756: _CrtSetDbgFlag( tmpFlag );
1.138 paf 757:
1.218 paf 758: _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE );
759: _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR );
1.138 paf 760: #endif
761:
1.318 moko 762: try { // global try
763: if(raw_filespec_to_process && *raw_filespec_to_process){
1.351 moko 764: filespec_to_process=full_disk_path(raw_filespec_to_process);
1.318 moko 765: }
1.10 paf 766:
1.316 moko 767: REAL_PARSER_HANDLER(cgi);
1.361 moko 768: } catch(const Exception& e) { // exception in config_handler
1.359 moko 769: SAPI::log(*sapi_info, "%s", e.comment());
770: SAPI::send_error(*sapi_info, e.comment(), strcmp(e.type(), "file.missing") ? "500" : "404");
1.16 paf 771: }
1.109 parser 772:
1.233 paf 773: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.362 moko 774: pa_log("main: successful return");
1.233 paf 775: #endif
1.358 moko 776: return sapi_info->http_response_code < 100 ? sapi_info->http_response_code : 0;
1.1 paf 777: }
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