Annotation of parser3/src/targets/cgi/parser3.C, revision 1.366
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:
1.366 ! moko 8: volatile const char * IDENT_PARSER3_C="$Id: parser3.C,v 1.365 2024/12/06 00:40:12 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
1.362 moko 59: static const char* log_filespec = 0; // -l option
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
1.322 moko 66: static const char* filespec_4log = NULL; // null only if system-wide auto.p used
1.201 paf 67:
1.352 moko 68: template <typename T> static T *dir_pos(T *fname){
69: T *result=NULL;
1.353 moko 70: while (fname=strpbrk(fname, "/\\")){
71: result=fname;
72: fname++;
1.352 moko 73: }
1.353 moko 74: return result;
1.352 moko 75: }
76:
1.366 ! moko 77: const char *parser3_log_filespec() { // $status:log-filename
1.363 moko 78: const char* slog=log_filespec;
1.61 paf 79:
1.363 moko 80: if(!slog)
81: slog=getenv(PARSER_LOG_ENV_NAME);
82: if(!slog)
83: slog=getenv(REDIRECT_PREFIX PARSER_LOG_ENV_NAME);
1.366 ! moko 84: if(!slog) {
! 85: static char log_spec[MAX_STRING + 12 /* '/parser3.log' */];
1.352 moko 86: pa_strncpy(log_spec, filespec_4log, MAX_STRING);
87:
1.354 moko 88: if(char* log_dir_pos=dir_pos(log_spec)){
1.352 moko 89: strcpy(log_dir_pos, "/parser3.log");
90: } else {
1.193 paf 91: // no path, just filename
1.352 moko 92: strcpy(log_spec, "./parser3.log");
1.193 paf 93: }
1.366 ! moko 94: slog=log_spec;
1.193 paf 95: }
1.366 ! moko 96: return slog;
! 97: }
! 98:
! 99: // SAPI
! 100:
! 101: static void pa_log(const char* fmt, va_list args) {
! 102: // use no memory [so that we could log out-of-memory error]
! 103: const char* slog=parser3_log_filespec();
! 104: FILE *f=strcmp(slog,"-") ? fopen(slog, "at") : stderr;
1.363 moko 105:
1.192 paf 106: // fallback to stderr
1.362 moko 107: if(!f)
1.61 paf 108: f=stderr;
1.208 paf 109:
110: setbuf(f, 0); // stderr stream is unbuffered by default, but still...
1.61 paf 111:
112: // prefix
113: time_t t=time(0);
1.218 paf 114: if(const char* stamp=ctime(&t)) { // never saw that
1.173 paf 115: if(size_t len=strlen(stamp)) // saw once stamp being =""
1.333 moko 116: fprintf(f, "[%.*s] [%u] ", (int)len-1, stamp, (unsigned int)pa_get_thread_id() );
1.171 paf 117: }
1.366 ! moko 118:
1.61 paf 119: // message
1.246 misha 120: char buf[MAX_LOG_STRING];
121: size_t size=vsnprintf(buf, MAX_LOG_STRING, fmt, args);
122: size=remove_crlf(buf, buf+size);
1.239 paf 123: fwrite(buf, size, 1, f);
124:
1.341 moko 125: if(request_info_4log && request_info_4log->method) {
126: 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 127: } else
128: fputs(" [no request info]\n", f);
1.61 paf 129:
1.362 moko 130: if(f!=stderr)
1.61 paf 131: fclose(f);
1.85 parser 132: else
133: fflush(f);
1.124 parser 134: }
1.272 moko 135:
1.335 moko 136: void pa_log(const char* fmt, ...) {
1.272 moko 137: va_list args;
1.233 paf 138: va_start(args,fmt);
1.335 moko 139: pa_log(fmt, args);
1.233 paf 140: va_end(args);
141: }
1.124 parser 142:
1.322 moko 143: // appends to parser3.log located next to the config file if openable, to stderr otherwize
1.218 paf 144: void SAPI::log(SAPI_Info&, const char* fmt, ...) {
1.272 moko 145: va_list args;
1.124 parser 146: va_start(args,fmt);
1.335 moko 147: pa_log(fmt, args);
1.124 parser 148: va_end(args);
149: }
150:
1.290 moko 151: void SAPI::die(const char* fmt, ...) {
152: va_list args;
153:
154: // logging first, first vsnprintf
155: va_start(args,fmt);
1.335 moko 156: pa_log(fmt, args);
1.290 moko 157: va_end(args);
1.138 paf 158:
1.290 moko 159: // inform user, second vsnprintf
160: va_start(args, fmt);
1.299 moko 161: char message[MAX_STRING];
1.300 moko 162: vsnprintf(message, MAX_STRING, fmt, args);
1.134 paf 163:
1.358 moko 164: SAPI::send_error(sapi_info_4log ? *sapi_info_4log : *sapi_info, message);
1.290 moko 165: exit(1);
1.258 moko 166: // va_end(args);
1.28 paf 167: }
168:
1.358 moko 169: void SAPI::send_error(SAPI_Info& info, const char *exception_cstr, const char *status){
170: info.send_error(exception_cstr, status);
171: }
172:
1.294 moko 173: char* SAPI::Env::get(SAPI_Info& info, const char* name) {
174: return info.get_env(name);
1.218 paf 175: }
176:
1.305 moko 177: bool SAPI::Env::set(SAPI_Info& info, const char* name, const char* value) {
178: return info.set_env(name, value);
179: }
180:
1.294 moko 181: const char* const *SAPI::Env::get(SAPI_Info& info) {
182: return info.get_env();
1.180 paf 183: }
184:
1.354 moko 185: size_t SAPI::read_post(SAPI_Info& info, char* buf, size_t max_bytes) {
1.294 moko 186: return info.read_post(buf, max_bytes);
1.10 paf 187: }
188:
1.294 moko 189: void SAPI::add_header_attribute(SAPI_Info& info, const char* dont_store_key, const char* dont_store_value) {
1.358 moko 190: info.add_header(dont_store_key, dont_store_value);
1.19 paf 191: }
192:
1.360 moko 193: void SAPI::send_headers(SAPI_Info& info) {
1.358 moko 194: info.send_headers();
1.30 paf 195: }
1.20 paf 196:
1.360 moko 197: void SAPI::clear_headers(SAPI_Info& info) {
1.361 moko 198: info.clear_headers();
1.360 moko 199: }
200:
1.294 moko 201: size_t SAPI::send_body(SAPI_Info& info, const void *buf, size_t size) {
202: return info.send_body(buf, size);
1.58 paf 203: }
204:
1.354 moko 205: static const char* full_disk_path(const char* file_name = "") {
206: char* result;
1.351 moko 207: if(file_name[0]=='/'
1.167 paf 208: #ifdef WIN32
1.308 moko 209: || file_name[0] && file_name[1]==':'
1.167 paf 210: #endif
1.308 moko 211: ){
1.351 moko 212: result=pa_strdup(file_name);
1.308 moko 213: } else {
214: char cwd[MAX_STRING];
1.351 moko 215: result=pa_strcat(getcwd(cwd, MAX_STRING) ? cwd : "", "/", file_name);
1.308 moko 216: }
1.166 paf 217: #ifdef WIN32
1.351 moko 218: back_slashes_to_slashes(result);
1.166 paf 219: #endif
1.351 moko 220: return result;
1.97 parser 221: }
222:
1.218 paf 223: static void log_signal(const char* signal_name) {
1.358 moko 224: pa_log("%s received %s processing request", signal_name, request ? "while" : "before or after");
1.205 paf 225: }
226:
1.201 paf 227: #ifdef SIGPIPE
1.243 misha 228: #define SIGPIPE_NAME "SIGPIPE"
229: static const String sigpipe_name(SIGPIPE_NAME);
1.205 paf 230: static void SIGPIPE_handler(int /*sig*/){
1.243 misha 231: Value* sigpipe=0;
232: if(request)
1.251 misha 233: sigpipe=request->main_class.get_element(sigpipe_name);
1.243 misha 234: if(sigpipe && sigpipe->as_bool())
1.244 misha 235: log_signal(SIGPIPE_NAME);
1.243 misha 236:
1.201 paf 237: if(request)
1.276 moko 238: request->set_skip(Request::SKIP_INTERRUPTED);
1.201 paf 239: }
240: #endif
241:
1.322 moko 242: // requires pa_thread_request() in entry_exists() under Windows
1.354 moko 243: static const char* locate_config(const char* config_filespec_option, const char* executable_path){
1.322 moko 244: filespec_4log=config_filespec_option;
245: if(!filespec_4log)
1.321 moko 246: filespec_4log=getenv(PARSER_CONFIG_ENV_NAME);
1.322 moko 247: if(!filespec_4log)
248: filespec_4log=getenv(REDIRECT_PREFIX PARSER_CONFIG_ENV_NAME);
249: if(!filespec_4log){
1.354 moko 250: const char* exec_dir_pos = dir_pos(executable_path);
1.322 moko 251: #ifdef SYSTEM_CONFIG_FILE
1.353 moko 252: if(exec_dir_pos){
253: #endif
254: // next to the executable
255: if(!exec_dir_pos || (exec_dir_pos==executable_path+1 && *executable_path=='.')){
1.355 moko 256: // when just parser3 or ./parser3 full path should be used to avoid "parser already configured"
1.353 moko 257: filespec_4log=full_disk_path(AUTO_FILE_NAME);
258: } else {
259: filespec_4log=pa_strcat(pa_strdup(executable_path, exec_dir_pos - executable_path), "/" AUTO_FILE_NAME);
260: }
261: if(entry_exists(filespec_4log))
262: return filespec_4log;
263: #ifdef SYSTEM_CONFIG_FILE
264: }
1.322 moko 265: if(entry_exists(SYSTEM_CONFIG_FILE)){
266: filespec_4log=NULL;
267: return SYSTEM_CONFIG_FILE;
268: }
269: #endif
270: return NULL;
1.321 moko 271: }
272: return filespec_4log;
273: }
274:
1.227 paf 275: #ifdef WIN32
1.354 moko 276: static const char* maybe_reconstruct_IIS_status_in_qs(const char* original) {
1.228 paf 277: // 404;http://servername/page[?param=value...]
1.227 paf 278: // ';' should be urlencoded by HTTP standard, so we shouldn't get it from browser
279: // and can consider that as an indication that this is IIS way to report errors
280:
1.272 moko 281: if(original && isdigit((unsigned char)original[0]) && isdigit((unsigned char)original[1]) && isdigit((unsigned char)original[2]) && original[3]==';'){
1.227 paf 282: size_t original_len=strlen(original);
1.272 moko 283: char* reconstructed=new(PointerFreeGC) char[original_len +12/*IIS-STATUS=&*/ +14/*IIS-DOCUMENT=&*/ +1];
1.227 paf 284: char* cur=reconstructed;
285: memcpy(cur, "IIS-STATUS=", 11); cur+=11;
286: memcpy(cur, original, 3); cur+=3;
287: *cur++='&';
288:
1.228 paf 289: const char* qmark_at=strchr(original, '?');
1.227 paf 290: memcpy(cur, "IIS-DOCUMENT=", 13); cur+=13;
291: {
1.272 moko 292: size_t value_len=(qmark_at ? qmark_at-original : original_len)-4;
1.227 paf 293: memcpy(cur, original+4, value_len); cur+=value_len;
294: }
295:
296: if(qmark_at) {
297: *cur++='&';
298: strcpy(cur, qmark_at+1/*skip ? itself*/);
299: } else
300: *cur=0;
301:
302: return reconstructed;
303: }
304:
305: return original;
306: }
1.283 moko 307:
1.354 moko 308: static const char* maybe_back_slashes_to_slashes(const char* original){
309: char *result=pa_strdup(original);
310: back_slashes_to_slashes(result);
311: return result;
312: }
313:
1.283 moko 314: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) maybe_reconstruct_IIS_status_in_qs(s)
1.354 moko 315: #define MAYBE_BACK_SLASHES_TO_SLASHES(s) maybe_back_slashes_to_slashes(s)
316:
1.342 moko 317: #else
1.354 moko 318:
1.283 moko 319: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) s
1.354 moko 320: #define MAYBE_BACK_SLASHES_TO_SLASHES(s) s
321:
1.227 paf 322: #endif
323:
1.256 misha 324: class RequestController {
325: public:
326: RequestController(Request* r){
1.341 moko 327: request=r;
1.256 misha 328: }
329: ~RequestController(){
1.341 moko 330: request=0;
331: }
332: };
333:
334: class RequestInfoController {
335: public:
1.358 moko 336: RequestInfoController(Request_info* rinfo, SAPI_Info* sinfo){
1.341 moko 337: request_info_4log=rinfo;
1.358 moko 338: sapi_info_4log=sinfo;
1.341 moko 339: }
340: ~RequestInfoController(){
341: request_info_4log=0;
1.358 moko 342: sapi_info_4log=0;
1.256 misha 343: }
344: };
345:
1.342 moko 346: /** httpd support */
347: static const String httpd_class_name("httpd");
348:
1.317 moko 349: static void config_handler(SAPI_Info &info) {
1.341 moko 350: Request_info request_info;
1.358 moko 351: RequestInfoController ric(&request_info, &info);
1.341 moko 352:
1.351 moko 353: request_info.document_root = full_disk_path();
1.317 moko 354: request_info.uri = "";
1.319 moko 355: request_info.argv = argv_extra;
1.317 moko 356:
357: // prepare to process request
1.323 moko 358: Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT));
1.330 moko 359: // only once
360: config_filespec = locate_config(config_filespec, parser3_filespec);
361: // process main auto.p only
362: r.core(config_filespec, false, String::Empty);
1.317 moko 363: }
364:
365: static void connection_handler(SAPI_Info_HTTPD &info, HTTPD_Connection &connection) {
1.341 moko 366: Request_info request_info;
1.358 moko 367: RequestInfoController ric(&request_info, &info);
1.341 moko 368:
1.325 moko 369: try {
1.336 moko 370: if(!connection.read_header())
1.332 moko 371: return; // ignore "void" connections
1.325 moko 372: info.populate_env();
373:
1.351 moko 374: request_info.document_root = full_disk_path();
1.325 moko 375: request_info.path_translated = filespec_to_process;
376: request_info.method = connection.method();
377: request_info.query_string = connection.query();
378: request_info.uri = request_info.strip_absolute_uri(connection.uri());
379: request_info.content_type = connection.content_type();
380: request_info.content_length = (size_t)connection.content_length();
381: request_info.cookie = info.get_env("HTTP_COOKIE");
382: request_info.mail_received = false;
383: request_info.argv = argv_extra;
1.294 moko 384:
1.325 moko 385: // prepare to process request
386: Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT));
1.330 moko 387: // process the request
1.342 moko 388: r.core(config_filespec, strcasecmp(request_info.method, "HEAD")==0, main_method_name, &httpd_class_name);
1.361 moko 389: } catch(const Exception& e) { // exception in connection handling
1.325 moko 390: SAPI::log(info, "%s", e.comment());
1.354 moko 391: const char* status = info.exception_http_status(e.type());
1.358 moko 392: if(*status)
1.337 moko 393: SAPI::send_error(info, e.comment(), status);
1.325 moko 394: }
395: }
1.317 moko 396:
1.328 moko 397: #ifdef _MSC_VER
398: DWORD WINAPI connection_thread(void *arg){
399: #else
1.325 moko 400: static void *connection_thread(void *arg){
1.328 moko 401: #endif
1.325 moko 402: HTTPD_Connection &connection=*(HTTPD_Connection*)arg;
403: SAPI_Info_HTTPD info(connection);
1.294 moko 404:
1.325 moko 405: try {
406: connection_handler(info, connection);
407: } catch(const Exception& e) { // exception in send_error
1.358 moko 408: pa_log("%s", e.comment());
1.294 moko 409: }
1.325 moko 410:
411: delete(&connection);
1.328 moko 412: return 0;
1.294 moko 413: }
414:
1.317 moko 415: static void httpd_mode() {
1.358 moko 416: config_handler(*sapi_info);
1.325 moko 417:
1.346 moko 418: SOCKET sock = HTTPD_Server::bind(httpd_host_port);
1.294 moko 419:
1.327 moko 420: #ifdef SIGPIPE
1.325 moko 421: signal(SIGPIPE, SIG_IGN);
422: #endif
1.317 moko 423:
1.297 moko 424: while(1){
1.328 moko 425: #ifndef _MSC_VER
1.325 moko 426: pid_t pid=1;
1.343 moko 427: if(HTTPD_Server::mode == HTTPD_Server::PARALLEL)
428: while (waitpid((pid_t)(-1), 0, WNOHANG) > 0);
1.328 moko 429: #endif
1.303 moko 430: try {
431: HTTPD_Connection connection;
1.345 moko 432: if(!connection.accept(sock, 500))
1.303 moko 433: continue;
434:
1.325 moko 435: switch (HTTPD_Server::mode) {
436: case HTTPD_Server::MULTITHREADED:
1.328 moko 437: #ifdef _MSC_VER
438: if (!GC_CreateThread(0, 0, connection_thread, new HTTPD_Connection(connection), 0, 0))
439: throw Exception("httpd.fork", 0, "thread creation failed");
1.346 moko 440: connection.sock=INVALID_SOCKET;
1.328 moko 441: break;
442: #else
1.339 moko 443: #ifdef HAVE_TLS
1.325 moko 444: pthread_t thread;
445: pthread_attr_t attr;
446: pthread_attr_init(&attr);
447: pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
448:
449: if(int result=GC_pthread_create(&thread, &attr, connection_thread, new HTTPD_Connection(connection)))
450: throw Exception("httpd.fork", 0, "thread creation failed (%d)", result);
1.346 moko 451: connection.sock=INVALID_SOCKET;
1.325 moko 452: break;
1.339 moko 453: #endif
1.325 moko 454: case HTTPD_Server::PARALLEL:
455: pid=fork();
456: if(pid<0)
457: throw Exception("httpd.fork", 0, "fork failed: %s (%d)", strerror(errno), errno);
458: if(pid>0)
459: continue; // parent should close connection.sock as well
460: #endif
461: case HTTPD_Server::SEQUENTIAL: // and fork child
1.303 moko 462:
1.325 moko 463: SAPI_Info_HTTPD info(connection);
464: connection_handler(info, connection);
1.303 moko 465: }
466: // closing connection socket in HTTPD_Connection destructor
467: } catch(const Exception& e) { // exception in accept or send_error
1.358 moko 468: pa_log("%s", e.comment());
1.294 moko 469: }
1.325 moko 470:
1.328 moko 471: #ifndef _MSC_VER
1.325 moko 472: if(pid==0) // fork child
473: exit(0);
1.328 moko 474: #endif
1.294 moko 475: }
476: }
1.231 paf 477:
1.294 moko 478: /** main workhorse */
479:
1.316 moko 480: static void real_parser_handler(bool cgi) {
1.280 moko 481: // init libraries
1.218 paf 482: pa_globals_init();
1.294 moko 483:
1.296 moko 484: if(httpd_host_port){
1.308 moko 485: httpd_mode();
1.294 moko 486: }
487:
488: const char* request_method=getenv("REQUEST_METHOD");
489:
1.308 moko 490: if(!filespec_to_process)
1.282 moko 491: SAPI::die("Parser/%s", PARSER_VERSION);
1.122 parser 492:
1.297 moko 493: // global request info
1.341 moko 494: Request_info request_info;
1.358 moko 495: RequestInfoController ric(&request_info, sapi_info);
1.341 moko 496:
1.283 moko 497: request_info.path_translated = filespec_to_process;
498: request_info.method = request_method ? request_method : "GET";
499: request_info.query_string = MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(getenv("QUERY_STRING"));
500:
1.122 parser 501: if(cgi) {
1.284 moko 502: // obligatory
1.218 paf 503: const char* path_info=getenv("PATH_INFO");
1.214 paf 504: if(!path_info)
1.349 moko 505: SAPI::die("parser3: illegal CGI call (missing PATH_INFO)");
1.283 moko 506:
507: request_info.document_root = getenv("DOCUMENT_ROOT");
508: if(!request_info.document_root) {
1.285 moko 509: // IIS or fcgiwrap minimalistic setup
510: ssize_t prefix_len = strlen(filespec_to_process) - strlen(path_info);
511: if(prefix_len < 0 || strcmp(filespec_to_process + prefix_len, path_info) != 0)
1.349 moko 512: SAPI::die("parser3: illegal CGI call (invalid PATH_INFO in reinventing DOCUMENT_ROOT)");
1.285 moko 513:
514: char* document_root = new(PointerFreeGC) char[prefix_len + 1/*0*/];
515: memcpy(document_root, filespec_to_process, prefix_len); document_root[prefix_len] = 0;
516: request_info.document_root = document_root;
1.283 moko 517: }
1.214 paf 518:
1.285 moko 519: request_info.uri = request_info.strip_absolute_uri(getenv("REQUEST_URI"));
1.283 moko 520: if(request_info.uri) { // apache & others stuck to standards
1.284 moko 521: // another obligatory
1.285 moko 522: const char* script_name = getenv("SCRIPT_NAME");
1.284 moko 523: if(!script_name)
1.349 moko 524: SAPI::die("parser3: illegal CGI call (missing SCRIPT_NAME)");
1.214 paf 525: /*
526: http://parser3/env.html?123 =OK
527: $request:uri=/env.html?123
528: REQUEST_URI='/env.html?123'
529: SCRIPT_NAME='/cgi-bin/parser3'
530: PATH_INFO='/env.html'
1.285 moko 531:
1.214 paf 532: http://parser3/cgi-bin/parser3/env.html?123 =ERROR
533: $request:uri=/cgi-bin/parser3/env.html?123
534: REQUEST_URI='/cgi-bin/parser3/env.html?123'
535: SCRIPT_NAME='/cgi-bin/parser3'
536: PATH_INFO='/env.html'
537: */
1.285 moko 538: size_t script_name_len = strlen(script_name);
539: size_t uri_len = strlen(request_info.uri);
1.283 moko 540: 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 541: SAPI::die("parser3: illegal CGI call (REQUEST_URI starts with SCRIPT_NAME)");
1.284 moko 542: } else { // fcgiwrap minimalistic setup
1.315 moko 543: request_info.uri = request_info.query_string && *request_info.query_string ? pa_strcat(path_info, "?", request_info.query_string) : path_info;
1.214 paf 544: }
1.283 moko 545: } else{
1.351 moko 546: request_info.document_root = full_disk_path();
1.285 moko 547: request_info.uri = "";
1.283 moko 548: }
1.122 parser 549:
1.283 moko 550: request_info.content_type = getenv("CONTENT_TYPE");
1.348 moko 551: request_info.content_length = cgi ? (size_t)pa_atoul(getenv("CONTENT_LENGTH")) : 0; // only SAPI_Info_CGI can read POST
1.283 moko 552: request_info.cookie = getenv("HTTP_COOKIE");
553: request_info.mail_received = mail_received;
1.184 paf 554:
1.319 moko 555: request_info.argv = argv_extra;
1.245 misha 556:
1.233 paf 557: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.362 moko 558: 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 559: #endif
560:
1.122 parser 561: // prepare to process request
1.358 moko 562: Request r(*sapi_info, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS);
1.256 misha 563: {
1.297 moko 564: // initing ::request ptr for signal handlers
1.323 moko 565: RequestController rc(&r);
1.256 misha 566: // process the request
1.323 moko 567: r.core(locate_config(config_filespec, parser3_filespec), strcasecmp(request_info.method, "HEAD")==0);
1.303 moko 568: // clearing ::request in RequestController destructor to prevent signal handlers from accessing invalid memory
1.122 parser 569: }
1.231 paf 570:
1.280 moko 571: // finalize libraries
1.225 paf 572: pa_globals_done();
1.218 paf 573: }
574:
1.231 paf 575: #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION
1.316 moko 576: static const Exception call_real_parser_handler__do_PEH_return_it(bool cgi) {
1.231 paf 577: try {
1.316 moko 578: real_parser_handler(cgi);
1.231 paf 579: } catch(const Exception& e) {
580: return e;
1.122 parser 581: }
1.231 paf 582:
583: return Exception();
1.122 parser 584: }
1.272 moko 585:
1.316 moko 586: static void call_real_parser_handler__supress_system_exception(bool cgi) {
1.231 paf 587: Exception parser_exception;
588: LPEXCEPTION_POINTERS system_exception=0;
1.122 parser 589:
1.231 paf 590: __try {
1.316 moko 591: parser_exception=call_real_parser_handler__do_PEH_return_it(cgi);
1.288 moko 592: } __except ( (system_exception=GetExceptionInformation()), EXCEPTION_EXECUTE_HANDLER) {
1.231 paf 593: if(system_exception)
594: if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
1.272 moko 595: throw Exception("system", 0, "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress);
1.218 paf 596: else
1.272 moko 597: throw Exception("system", 0, "<no exception record>");
1.218 paf 598: else
1.272 moko 599: throw Exception("system", 0, "<no exception information>");
1.231 paf 600: }
601:
602: if(parser_exception)
603: throw Exception(parser_exception);
604: }
1.273 moko 605:
606: #define REAL_PARSER_HANDLER call_real_parser_handler__supress_system_exception
607: #else
608: #define REAL_PARSER_HANDLER real_parser_handler
1.218 paf 609: #endif
1.131 paf 610:
1.364 moko 611: static void usage(const char* message=NULL) {
612: if(message){
613: fprintf(stderr, message, parser3_filespec);
614: }
615:
1.188 paf 616: printf(
1.235 paf 617: "Parser/%s\n"
1.356 moko 618: "Copyright (c) 2001-2024 Art. Lebedev Studio (http://www.artlebedev.com)\n"
1.350 moko 619: "Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>\n"
1.184 paf 620: "\n"
1.307 moko 621: "Usage: %s [options] [file]\n"
1.184 paf 622: "Options are:\n"
1.185 paf 623: #ifdef WITH_MAILRECEIVE
1.193 paf 624: " -m Parse mail, put received letter to $mail:received\n"
1.184 paf 625: #endif
1.193 paf 626: " -f config_file Use this config file (/path/to/auto.p)\n"
1.364 moko 627: " -l log_file Use this log file (/path/to/parser3.log)\n"
1.296 moko 628: " -p [host:]port Start web server on this port\n"
1.272 moko 629: " -h Display usage information (this message)\n",
630: PARSER_VERSION,
1.364 moko 631: parser3_filespec ? parser3_filespec : "parser3" );
1.184 paf 632: exit(EINVAL);
633: }
634:
1.364 moko 635: #define ARG_REQUIRED \
636: if(c[1] || !*(++carg)){ \
637: fprintf(stderr, "%s: option '%c' requires an argument\n", parser3_filespec, *c); \
638: usage(); \
639: }
1.294 moko 640:
1.249 misha 641: int main(int argc, char *argv[]) {
1.233 paf 642: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.362 moko 643: pa_log("main: entry");
1.233 paf 644: #endif
1.217 paf 645:
1.364 moko 646: if(!argc || !argv[0])
647: usage();
648: parser3_filespec = MAYBE_BACK_SLASHES_TO_SLASHES(argv[0]);
649:
1.294 moko 650: umask(2);
651:
652: // were we started as CGI?
1.316 moko 653: bool cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION");
1.365 moko 654: if(!cgi){
1.358 moko 655: sapi_info = &sapi_console;
1.365 moko 656: parser3_mode = "console";
657: }
1.294 moko 658:
1.203 paf 659: #ifdef SIGPIPE
1.325 moko 660: signal(SIGPIPE, SIGPIPE_handler);
1.203 paf 661: #endif
1.354 moko 662: char* raw_filespec_to_process = NULL;
1.210 paf 663: if(cgi) {
1.184 paf 664: raw_filespec_to_process=getenv("PATH_TRANSLATED");
1.319 moko 665: argv_extra=argv + 1;
1.210 paf 666: } else {
1.364 moko 667: char** carg = argv + 1;
668: for(;*carg; carg++){
669: if((*carg)[0] != '-')
1.184 paf 670: break;
1.245 misha 671:
1.364 moko 672: for(char* c=(*carg)+1; *c; c++){
673: switch (*c) {
1.245 misha 674: case 'h':
1.364 moko 675: usage();
1.245 misha 676: break;
677: case 'f':
1.364 moko 678: ARG_REQUIRED;
679: config_filespec=*carg;
1.245 misha 680: break;
1.362 moko 681: case 'l':
1.364 moko 682: ARG_REQUIRED;
683: log_filespec=*carg;
1.362 moko 684: break;
1.294 moko 685: case 'p':
1.364 moko 686: ARG_REQUIRED;
687: httpd_host_port=*carg;
1.365 moko 688: parser3_mode="httpd";
1.294 moko 689: break;
1.185 paf 690: #ifdef WITH_MAILRECEIVE
1.245 misha 691: case 'm':
692: mail_received=true;
1.365 moko 693: parser3_mode="mail";
1.245 misha 694: break;
695: #endif
696: default:
1.364 moko 697: fprintf(stderr, "%s: invalid option '%c'\n", parser3_filespec, *c);
698: usage();
1.245 misha 699: break;
700: }
1.184 paf 701: }
702: }
1.245 misha 703:
1.364 moko 704: if (*carg) {
705: raw_filespec_to_process=*carg;
1.294 moko 706: } else {
1.364 moko 707: if(!httpd_host_port)
708: usage("%s: file not specified\n");
1.10 paf 709: }
1.294 moko 710:
1.364 moko 711: if (httpd_host_port && mail_received)
712: usage("%s: -p and -m options should not be used together\n");
1.310 moko 713:
1.364 moko 714: argv_extra=carg;
1.10 paf 715: }
716:
1.264 moko 717: #ifdef _MSC_VER
1.100 parser 718: setmode(fileno(stdin), _O_BINARY);
719: setmode(fileno(stdout), _O_BINARY);
720: setmode(fileno(stderr), _O_BINARY);
721: #endif
722:
1.218 paf 723: #if defined(_MSC_VER) && defined(_DEBUG)
1.148 paf 724: // Get current flag
725: int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG );
726:
727: // Turn on leak-checking bit
728: tmpFlag |= _CRTDBG_LEAK_CHECK_DF;
729:
730: // Set flag to the new value
731: _CrtSetDbgFlag( tmpFlag );
1.138 paf 732:
1.218 paf 733: _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE );
734: _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR );
1.138 paf 735: #endif
736:
1.318 moko 737: try { // global try
738: if(raw_filespec_to_process && *raw_filespec_to_process){
1.351 moko 739: filespec_to_process=full_disk_path(raw_filespec_to_process);
1.318 moko 740: }
1.10 paf 741:
1.316 moko 742: REAL_PARSER_HANDLER(cgi);
1.361 moko 743: } catch(const Exception& e) { // exception in config_handler
1.359 moko 744: SAPI::log(*sapi_info, "%s", e.comment());
745: SAPI::send_error(*sapi_info, e.comment(), strcmp(e.type(), "file.missing") ? "500" : "404");
1.16 paf 746: }
1.109 parser 747:
1.233 paf 748: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.362 moko 749: pa_log("main: successful return");
1.233 paf 750: #endif
1.358 moko 751: return sapi_info->http_response_code < 100 ? sapi_info->http_response_code : 0;
1.1 paf 752: }
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