Annotation of parser3/src/targets/cgi/parser3.C, revision 1.364
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:
1.364 ! moko 8: volatile const char * IDENT_PARSER3_C="$Id: parser3.C,v 1.363 2024/12/03 23:48:43 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:
1.316 moko 55: static const char* filespec_to_process = 0; // [file]
56: static const char* httpd_host_port = 0; // -p option
1.319 moko 57: static const char* config_filespec = 0; // -f option or from env or next to the executable if exists
1.362 moko 58: static const char* log_filespec = 0; // -l option
1.316 moko 59: static bool mail_received = false; // -m option? [asked to parse incoming message to $mail:received]
1.347 moko 60: static const char* parser3_filespec = 0; // argv[0]
1.319 moko 61: static char** argv_extra = NULL;
1.245 misha 62:
1.317 moko 63: // for error logging
1.341 moko 64: static THREAD_LOCAL Request_info *request_info_4log = NULL; // global for correct log() reporting
1.322 moko 65: static const char* filespec_4log = NULL; // null only if system-wide auto.p used
1.201 paf 66:
1.352 moko 67: template <typename T> static T *dir_pos(T *fname){
68: T *result=NULL;
1.353 moko 69: while (fname=strpbrk(fname, "/\\")){
70: result=fname;
71: fname++;
1.352 moko 72: }
1.353 moko 73: return result;
1.352 moko 74: }
75:
1.46 paf 76: // SAPI
1.86 parser 77:
1.335 moko 78: static void pa_log(const char* fmt, va_list args) {
1.61 paf 79: FILE *f=0;
1.363 moko 80: const char* slog=log_filespec;
1.61 paf 81:
1.363 moko 82: if(!slog)
83: slog=getenv(PARSER_LOG_ENV_NAME);
84: if(!slog)
85: slog=getenv(REDIRECT_PREFIX PARSER_LOG_ENV_NAME);
86:
87: if(slog) {
88: f=strcmp(slog,"-") ? fopen(slog, "at") : stderr;
89: } else if(filespec_4log) {
1.352 moko 90: char log_spec[MAX_STRING + 12 /* '/parser3.log' */];
91: pa_strncpy(log_spec, filespec_4log, MAX_STRING);
92:
1.354 moko 93: if(char* log_dir_pos=dir_pos(log_spec)){
1.352 moko 94: strcpy(log_dir_pos, "/parser3.log");
95: } else {
1.193 paf 96: // no path, just filename
1.352 moko 97: strcpy(log_spec, "./parser3.log");
1.193 paf 98: }
1.352 moko 99: f=fopen(log_spec, "at");
1.193 paf 100: }
1.363 moko 101:
1.192 paf 102: // fallback to stderr
1.362 moko 103: if(!f)
1.61 paf 104: f=stderr;
1.208 paf 105:
106: // use no memory [so that we could log out-of-memory error]
107: setbuf(f, 0); // stderr stream is unbuffered by default, but still...
1.61 paf 108:
109: // prefix
110: time_t t=time(0);
1.218 paf 111: if(const char* stamp=ctime(&t)) { // never saw that
1.173 paf 112: if(size_t len=strlen(stamp)) // saw once stamp being =""
1.333 moko 113: fprintf(f, "[%.*s] [%u] ", (int)len-1, stamp, (unsigned int)pa_get_thread_id() );
1.171 paf 114: }
1.61 paf 115: // message
1.117 parser 116:
1.246 misha 117: char buf[MAX_LOG_STRING];
118: size_t size=vsnprintf(buf, MAX_LOG_STRING, fmt, args);
119: size=remove_crlf(buf, buf+size);
1.239 paf 120: fwrite(buf, size, 1, f);
121:
1.341 moko 122: if(request_info_4log && request_info_4log->method) {
123: 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 124: } else
125: fputs(" [no request info]\n", f);
1.61 paf 126:
1.362 moko 127: if(f!=stderr)
1.61 paf 128: fclose(f);
1.85 parser 129: else
130: fflush(f);
1.124 parser 131: }
1.272 moko 132:
1.335 moko 133: void pa_log(const char* fmt, ...) {
1.272 moko 134: va_list args;
1.233 paf 135: va_start(args,fmt);
1.335 moko 136: pa_log(fmt, args);
1.233 paf 137: va_end(args);
138: }
1.124 parser 139:
1.322 moko 140: // appends to parser3.log located next to the config file if openable, to stderr otherwize
1.218 paf 141: void SAPI::log(SAPI_Info&, const char* fmt, ...) {
1.272 moko 142: va_list args;
1.124 parser 143: va_start(args,fmt);
1.335 moko 144: pa_log(fmt, args);
1.124 parser 145: va_end(args);
146: }
147:
1.290 moko 148: void SAPI::die(const char* fmt, ...) {
149: va_list args;
150:
151: // logging first, first vsnprintf
152: va_start(args,fmt);
1.335 moko 153: pa_log(fmt, args);
1.290 moko 154: va_end(args);
1.138 paf 155:
1.290 moko 156: // inform user, second vsnprintf
157: va_start(args, fmt);
1.299 moko 158: char message[MAX_STRING];
1.300 moko 159: vsnprintf(message, MAX_STRING, fmt, args);
1.134 paf 160:
1.358 moko 161: SAPI::send_error(sapi_info_4log ? *sapi_info_4log : *sapi_info, message);
1.290 moko 162: exit(1);
1.258 moko 163: // va_end(args);
1.28 paf 164: }
165:
1.358 moko 166: void SAPI::send_error(SAPI_Info& info, const char *exception_cstr, const char *status){
167: info.send_error(exception_cstr, status);
168: }
169:
1.294 moko 170: char* SAPI::Env::get(SAPI_Info& info, const char* name) {
171: return info.get_env(name);
1.218 paf 172: }
173:
1.305 moko 174: bool SAPI::Env::set(SAPI_Info& info, const char* name, const char* value) {
175: return info.set_env(name, value);
176: }
177:
1.294 moko 178: const char* const *SAPI::Env::get(SAPI_Info& info) {
179: return info.get_env();
1.180 paf 180: }
181:
1.354 moko 182: size_t SAPI::read_post(SAPI_Info& info, char* buf, size_t max_bytes) {
1.294 moko 183: return info.read_post(buf, max_bytes);
1.10 paf 184: }
185:
1.294 moko 186: void SAPI::add_header_attribute(SAPI_Info& info, const char* dont_store_key, const char* dont_store_value) {
1.358 moko 187: info.add_header(dont_store_key, dont_store_value);
1.19 paf 188: }
189:
1.360 moko 190: void SAPI::send_headers(SAPI_Info& info) {
1.358 moko 191: info.send_headers();
1.30 paf 192: }
1.20 paf 193:
1.360 moko 194: void SAPI::clear_headers(SAPI_Info& info) {
1.361 moko 195: info.clear_headers();
1.360 moko 196: }
197:
1.294 moko 198: size_t SAPI::send_body(SAPI_Info& info, const void *buf, size_t size) {
199: return info.send_body(buf, size);
1.58 paf 200: }
201:
1.354 moko 202: static const char* full_disk_path(const char* file_name = "") {
203: char* result;
1.351 moko 204: if(file_name[0]=='/'
1.167 paf 205: #ifdef WIN32
1.308 moko 206: || file_name[0] && file_name[1]==':'
1.167 paf 207: #endif
1.308 moko 208: ){
1.351 moko 209: result=pa_strdup(file_name);
1.308 moko 210: } else {
211: char cwd[MAX_STRING];
1.351 moko 212: result=pa_strcat(getcwd(cwd, MAX_STRING) ? cwd : "", "/", file_name);
1.308 moko 213: }
1.166 paf 214: #ifdef WIN32
1.351 moko 215: back_slashes_to_slashes(result);
1.166 paf 216: #endif
1.351 moko 217: return result;
1.97 parser 218: }
219:
1.218 paf 220: static void log_signal(const char* signal_name) {
1.358 moko 221: pa_log("%s received %s processing request", signal_name, request ? "while" : "before or after");
1.205 paf 222: }
223:
1.201 paf 224: #ifdef SIGPIPE
1.243 misha 225: #define SIGPIPE_NAME "SIGPIPE"
226: static const String sigpipe_name(SIGPIPE_NAME);
1.205 paf 227: static void SIGPIPE_handler(int /*sig*/){
1.243 misha 228: Value* sigpipe=0;
229: if(request)
1.251 misha 230: sigpipe=request->main_class.get_element(sigpipe_name);
1.243 misha 231: if(sigpipe && sigpipe->as_bool())
1.244 misha 232: log_signal(SIGPIPE_NAME);
1.243 misha 233:
1.201 paf 234: if(request)
1.276 moko 235: request->set_skip(Request::SKIP_INTERRUPTED);
1.201 paf 236: }
237: #endif
238:
1.322 moko 239: // requires pa_thread_request() in entry_exists() under Windows
1.354 moko 240: static const char* locate_config(const char* config_filespec_option, const char* executable_path){
1.322 moko 241: filespec_4log=config_filespec_option;
242: if(!filespec_4log)
1.321 moko 243: filespec_4log=getenv(PARSER_CONFIG_ENV_NAME);
1.322 moko 244: if(!filespec_4log)
245: filespec_4log=getenv(REDIRECT_PREFIX PARSER_CONFIG_ENV_NAME);
246: if(!filespec_4log){
1.354 moko 247: const char* exec_dir_pos = dir_pos(executable_path);
1.322 moko 248: #ifdef SYSTEM_CONFIG_FILE
1.353 moko 249: if(exec_dir_pos){
250: #endif
251: // next to the executable
252: if(!exec_dir_pos || (exec_dir_pos==executable_path+1 && *executable_path=='.')){
1.355 moko 253: // when just parser3 or ./parser3 full path should be used to avoid "parser already configured"
1.353 moko 254: filespec_4log=full_disk_path(AUTO_FILE_NAME);
255: } else {
256: filespec_4log=pa_strcat(pa_strdup(executable_path, exec_dir_pos - executable_path), "/" AUTO_FILE_NAME);
257: }
258: if(entry_exists(filespec_4log))
259: return filespec_4log;
260: #ifdef SYSTEM_CONFIG_FILE
261: }
1.322 moko 262: if(entry_exists(SYSTEM_CONFIG_FILE)){
263: filespec_4log=NULL;
264: return SYSTEM_CONFIG_FILE;
265: }
266: #endif
267: return NULL;
1.321 moko 268: }
269: return filespec_4log;
270: }
271:
1.227 paf 272: #ifdef WIN32
1.354 moko 273: static const char* maybe_reconstruct_IIS_status_in_qs(const char* original) {
1.228 paf 274: // 404;http://servername/page[?param=value...]
1.227 paf 275: // ';' should be urlencoded by HTTP standard, so we shouldn't get it from browser
276: // and can consider that as an indication that this is IIS way to report errors
277:
1.272 moko 278: if(original && isdigit((unsigned char)original[0]) && isdigit((unsigned char)original[1]) && isdigit((unsigned char)original[2]) && original[3]==';'){
1.227 paf 279: size_t original_len=strlen(original);
1.272 moko 280: char* reconstructed=new(PointerFreeGC) char[original_len +12/*IIS-STATUS=&*/ +14/*IIS-DOCUMENT=&*/ +1];
1.227 paf 281: char* cur=reconstructed;
282: memcpy(cur, "IIS-STATUS=", 11); cur+=11;
283: memcpy(cur, original, 3); cur+=3;
284: *cur++='&';
285:
1.228 paf 286: const char* qmark_at=strchr(original, '?');
1.227 paf 287: memcpy(cur, "IIS-DOCUMENT=", 13); cur+=13;
288: {
1.272 moko 289: size_t value_len=(qmark_at ? qmark_at-original : original_len)-4;
1.227 paf 290: memcpy(cur, original+4, value_len); cur+=value_len;
291: }
292:
293: if(qmark_at) {
294: *cur++='&';
295: strcpy(cur, qmark_at+1/*skip ? itself*/);
296: } else
297: *cur=0;
298:
299: return reconstructed;
300: }
301:
302: return original;
303: }
1.283 moko 304:
1.354 moko 305: static const char* maybe_back_slashes_to_slashes(const char* original){
306: char *result=pa_strdup(original);
307: back_slashes_to_slashes(result);
308: return result;
309: }
310:
1.283 moko 311: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) maybe_reconstruct_IIS_status_in_qs(s)
1.354 moko 312: #define MAYBE_BACK_SLASHES_TO_SLASHES(s) maybe_back_slashes_to_slashes(s)
313:
1.342 moko 314: #else
1.354 moko 315:
1.283 moko 316: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) s
1.354 moko 317: #define MAYBE_BACK_SLASHES_TO_SLASHES(s) s
318:
1.227 paf 319: #endif
320:
1.256 misha 321: class RequestController {
322: public:
323: RequestController(Request* r){
1.341 moko 324: request=r;
1.256 misha 325: }
326: ~RequestController(){
1.341 moko 327: request=0;
328: }
329: };
330:
331: class RequestInfoController {
332: public:
1.358 moko 333: RequestInfoController(Request_info* rinfo, SAPI_Info* sinfo){
1.341 moko 334: request_info_4log=rinfo;
1.358 moko 335: sapi_info_4log=sinfo;
1.341 moko 336: }
337: ~RequestInfoController(){
338: request_info_4log=0;
1.358 moko 339: sapi_info_4log=0;
1.256 misha 340: }
341: };
342:
1.342 moko 343: /** httpd support */
344: static const String httpd_class_name("httpd");
345:
1.317 moko 346: static void config_handler(SAPI_Info &info) {
1.341 moko 347: Request_info request_info;
1.358 moko 348: RequestInfoController ric(&request_info, &info);
1.341 moko 349:
1.351 moko 350: request_info.document_root = full_disk_path();
1.317 moko 351: request_info.uri = "";
1.319 moko 352: request_info.argv = argv_extra;
1.317 moko 353:
354: // prepare to process request
1.323 moko 355: Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT));
1.330 moko 356: // only once
357: config_filespec = locate_config(config_filespec, parser3_filespec);
358: // process main auto.p only
359: r.core(config_filespec, false, String::Empty);
1.317 moko 360: }
361:
362: static void connection_handler(SAPI_Info_HTTPD &info, HTTPD_Connection &connection) {
1.341 moko 363: Request_info request_info;
1.358 moko 364: RequestInfoController ric(&request_info, &info);
1.341 moko 365:
1.325 moko 366: try {
1.336 moko 367: if(!connection.read_header())
1.332 moko 368: return; // ignore "void" connections
1.325 moko 369: info.populate_env();
370:
1.351 moko 371: request_info.document_root = full_disk_path();
1.325 moko 372: request_info.path_translated = filespec_to_process;
373: request_info.method = connection.method();
374: request_info.query_string = connection.query();
375: request_info.uri = request_info.strip_absolute_uri(connection.uri());
376: request_info.content_type = connection.content_type();
377: request_info.content_length = (size_t)connection.content_length();
378: request_info.cookie = info.get_env("HTTP_COOKIE");
379: request_info.mail_received = false;
380: request_info.argv = argv_extra;
1.294 moko 381:
1.325 moko 382: // prepare to process request
383: Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT));
1.330 moko 384: // process the request
1.342 moko 385: r.core(config_filespec, strcasecmp(request_info.method, "HEAD")==0, main_method_name, &httpd_class_name);
1.361 moko 386: } catch(const Exception& e) { // exception in connection handling
1.325 moko 387: SAPI::log(info, "%s", e.comment());
1.354 moko 388: const char* status = info.exception_http_status(e.type());
1.358 moko 389: if(*status)
1.337 moko 390: SAPI::send_error(info, e.comment(), status);
1.325 moko 391: }
392: }
1.317 moko 393:
1.328 moko 394: #ifdef _MSC_VER
395: DWORD WINAPI connection_thread(void *arg){
396: #else
1.325 moko 397: static void *connection_thread(void *arg){
1.328 moko 398: #endif
1.325 moko 399: HTTPD_Connection &connection=*(HTTPD_Connection*)arg;
400: SAPI_Info_HTTPD info(connection);
1.294 moko 401:
1.325 moko 402: try {
403: connection_handler(info, connection);
404: } catch(const Exception& e) { // exception in send_error
1.358 moko 405: pa_log("%s", e.comment());
1.294 moko 406: }
1.325 moko 407:
408: delete(&connection);
1.328 moko 409: return 0;
1.294 moko 410: }
411:
1.317 moko 412: static void httpd_mode() {
1.358 moko 413: config_handler(*sapi_info);
1.325 moko 414:
1.346 moko 415: SOCKET sock = HTTPD_Server::bind(httpd_host_port);
1.294 moko 416:
1.327 moko 417: #ifdef SIGPIPE
1.325 moko 418: signal(SIGPIPE, SIG_IGN);
419: #endif
1.317 moko 420:
1.297 moko 421: while(1){
1.328 moko 422: #ifndef _MSC_VER
1.325 moko 423: pid_t pid=1;
1.343 moko 424: if(HTTPD_Server::mode == HTTPD_Server::PARALLEL)
425: while (waitpid((pid_t)(-1), 0, WNOHANG) > 0);
1.328 moko 426: #endif
1.303 moko 427: try {
428: HTTPD_Connection connection;
1.345 moko 429: if(!connection.accept(sock, 500))
1.303 moko 430: continue;
431:
1.325 moko 432: switch (HTTPD_Server::mode) {
433: case HTTPD_Server::MULTITHREADED:
1.328 moko 434: #ifdef _MSC_VER
435: if (!GC_CreateThread(0, 0, connection_thread, new HTTPD_Connection(connection), 0, 0))
436: throw Exception("httpd.fork", 0, "thread creation failed");
1.346 moko 437: connection.sock=INVALID_SOCKET;
1.328 moko 438: break;
439: #else
1.339 moko 440: #ifdef HAVE_TLS
1.325 moko 441: pthread_t thread;
442: pthread_attr_t attr;
443: pthread_attr_init(&attr);
444: pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
445:
446: if(int result=GC_pthread_create(&thread, &attr, connection_thread, new HTTPD_Connection(connection)))
447: throw Exception("httpd.fork", 0, "thread creation failed (%d)", result);
1.346 moko 448: connection.sock=INVALID_SOCKET;
1.325 moko 449: break;
1.339 moko 450: #endif
1.325 moko 451: case HTTPD_Server::PARALLEL:
452: pid=fork();
453: if(pid<0)
454: throw Exception("httpd.fork", 0, "fork failed: %s (%d)", strerror(errno), errno);
455: if(pid>0)
456: continue; // parent should close connection.sock as well
457: #endif
458: case HTTPD_Server::SEQUENTIAL: // and fork child
1.303 moko 459:
1.325 moko 460: SAPI_Info_HTTPD info(connection);
461: connection_handler(info, connection);
1.303 moko 462: }
463: // closing connection socket in HTTPD_Connection destructor
464: } catch(const Exception& e) { // exception in accept or send_error
1.358 moko 465: pa_log("%s", e.comment());
1.294 moko 466: }
1.325 moko 467:
1.328 moko 468: #ifndef _MSC_VER
1.325 moko 469: if(pid==0) // fork child
470: exit(0);
1.328 moko 471: #endif
1.294 moko 472: }
473: }
1.231 paf 474:
1.294 moko 475: /** main workhorse */
476:
1.316 moko 477: static void real_parser_handler(bool cgi) {
1.280 moko 478: // init libraries
1.218 paf 479: pa_globals_init();
1.294 moko 480:
1.296 moko 481: if(httpd_host_port){
1.308 moko 482: httpd_mode();
1.294 moko 483: }
484:
485: const char* request_method=getenv("REQUEST_METHOD");
486:
1.308 moko 487: if(!filespec_to_process)
1.282 moko 488: SAPI::die("Parser/%s", PARSER_VERSION);
1.122 parser 489:
1.297 moko 490: // global request info
1.341 moko 491: Request_info request_info;
1.358 moko 492: RequestInfoController ric(&request_info, sapi_info);
1.341 moko 493:
1.283 moko 494: request_info.path_translated = filespec_to_process;
495: request_info.method = request_method ? request_method : "GET";
496: request_info.query_string = MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(getenv("QUERY_STRING"));
497:
1.122 parser 498: if(cgi) {
1.284 moko 499: // obligatory
1.218 paf 500: const char* path_info=getenv("PATH_INFO");
1.214 paf 501: if(!path_info)
1.349 moko 502: SAPI::die("parser3: illegal CGI call (missing PATH_INFO)");
1.283 moko 503:
504: request_info.document_root = getenv("DOCUMENT_ROOT");
505: if(!request_info.document_root) {
1.285 moko 506: // IIS or fcgiwrap minimalistic setup
507: ssize_t prefix_len = strlen(filespec_to_process) - strlen(path_info);
508: if(prefix_len < 0 || strcmp(filespec_to_process + prefix_len, path_info) != 0)
1.349 moko 509: SAPI::die("parser3: illegal CGI call (invalid PATH_INFO in reinventing DOCUMENT_ROOT)");
1.285 moko 510:
511: char* document_root = new(PointerFreeGC) char[prefix_len + 1/*0*/];
512: memcpy(document_root, filespec_to_process, prefix_len); document_root[prefix_len] = 0;
513: request_info.document_root = document_root;
1.283 moko 514: }
1.214 paf 515:
1.285 moko 516: request_info.uri = request_info.strip_absolute_uri(getenv("REQUEST_URI"));
1.283 moko 517: if(request_info.uri) { // apache & others stuck to standards
1.284 moko 518: // another obligatory
1.285 moko 519: const char* script_name = getenv("SCRIPT_NAME");
1.284 moko 520: if(!script_name)
1.349 moko 521: SAPI::die("parser3: illegal CGI call (missing SCRIPT_NAME)");
1.214 paf 522: /*
523: http://parser3/env.html?123 =OK
524: $request:uri=/env.html?123
525: REQUEST_URI='/env.html?123'
526: SCRIPT_NAME='/cgi-bin/parser3'
527: PATH_INFO='/env.html'
1.285 moko 528:
1.214 paf 529: http://parser3/cgi-bin/parser3/env.html?123 =ERROR
530: $request:uri=/cgi-bin/parser3/env.html?123
531: REQUEST_URI='/cgi-bin/parser3/env.html?123'
532: SCRIPT_NAME='/cgi-bin/parser3'
533: PATH_INFO='/env.html'
534: */
1.285 moko 535: size_t script_name_len = strlen(script_name);
536: size_t uri_len = strlen(request_info.uri);
1.283 moko 537: 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 538: SAPI::die("parser3: illegal CGI call (REQUEST_URI starts with SCRIPT_NAME)");
1.284 moko 539: } else { // fcgiwrap minimalistic setup
1.315 moko 540: request_info.uri = request_info.query_string && *request_info.query_string ? pa_strcat(path_info, "?", request_info.query_string) : path_info;
1.214 paf 541: }
1.283 moko 542: } else{
1.351 moko 543: request_info.document_root = full_disk_path();
1.285 moko 544: request_info.uri = "";
1.283 moko 545: }
1.122 parser 546:
1.283 moko 547: request_info.content_type = getenv("CONTENT_TYPE");
1.348 moko 548: request_info.content_length = cgi ? (size_t)pa_atoul(getenv("CONTENT_LENGTH")) : 0; // only SAPI_Info_CGI can read POST
1.283 moko 549: request_info.cookie = getenv("HTTP_COOKIE");
550: request_info.mail_received = mail_received;
1.184 paf 551:
1.319 moko 552: request_info.argv = argv_extra;
1.245 misha 553:
1.233 paf 554: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.362 moko 555: 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 556: #endif
557:
1.122 parser 558: // prepare to process request
1.358 moko 559: Request r(*sapi_info, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS);
1.256 misha 560: {
1.297 moko 561: // initing ::request ptr for signal handlers
1.323 moko 562: RequestController rc(&r);
1.256 misha 563: // process the request
1.323 moko 564: r.core(locate_config(config_filespec, parser3_filespec), strcasecmp(request_info.method, "HEAD")==0);
1.303 moko 565: // clearing ::request in RequestController destructor to prevent signal handlers from accessing invalid memory
1.122 parser 566: }
1.231 paf 567:
1.280 moko 568: // finalize libraries
1.225 paf 569: pa_globals_done();
1.218 paf 570: }
571:
1.231 paf 572: #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION
1.316 moko 573: static const Exception call_real_parser_handler__do_PEH_return_it(bool cgi) {
1.231 paf 574: try {
1.316 moko 575: real_parser_handler(cgi);
1.231 paf 576: } catch(const Exception& e) {
577: return e;
1.122 parser 578: }
1.231 paf 579:
580: return Exception();
1.122 parser 581: }
1.272 moko 582:
1.316 moko 583: static void call_real_parser_handler__supress_system_exception(bool cgi) {
1.231 paf 584: Exception parser_exception;
585: LPEXCEPTION_POINTERS system_exception=0;
1.122 parser 586:
1.231 paf 587: __try {
1.316 moko 588: parser_exception=call_real_parser_handler__do_PEH_return_it(cgi);
1.288 moko 589: } __except ( (system_exception=GetExceptionInformation()), EXCEPTION_EXECUTE_HANDLER) {
1.231 paf 590: if(system_exception)
591: if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
1.272 moko 592: throw Exception("system", 0, "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress);
1.218 paf 593: else
1.272 moko 594: throw Exception("system", 0, "<no exception record>");
1.218 paf 595: else
1.272 moko 596: throw Exception("system", 0, "<no exception information>");
1.231 paf 597: }
598:
599: if(parser_exception)
600: throw Exception(parser_exception);
601: }
1.273 moko 602:
603: #define REAL_PARSER_HANDLER call_real_parser_handler__supress_system_exception
604: #else
605: #define REAL_PARSER_HANDLER real_parser_handler
1.218 paf 606: #endif
1.131 paf 607:
1.364 ! moko 608: static void usage(const char* message=NULL) {
! 609: if(message){
! 610: fprintf(stderr, message, parser3_filespec);
! 611: }
! 612:
1.188 paf 613: printf(
1.235 paf 614: "Parser/%s\n"
1.356 moko 615: "Copyright (c) 2001-2024 Art. Lebedev Studio (http://www.artlebedev.com)\n"
1.350 moko 616: "Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>\n"
1.184 paf 617: "\n"
1.307 moko 618: "Usage: %s [options] [file]\n"
1.184 paf 619: "Options are:\n"
1.185 paf 620: #ifdef WITH_MAILRECEIVE
1.193 paf 621: " -m Parse mail, put received letter to $mail:received\n"
1.184 paf 622: #endif
1.193 paf 623: " -f config_file Use this config file (/path/to/auto.p)\n"
1.364 ! moko 624: " -l log_file Use this log file (/path/to/parser3.log)\n"
1.296 moko 625: " -p [host:]port Start web server on this port\n"
1.272 moko 626: " -h Display usage information (this message)\n",
627: PARSER_VERSION,
1.364 ! moko 628: parser3_filespec ? parser3_filespec : "parser3" );
1.184 paf 629: exit(EINVAL);
630: }
631:
1.364 ! moko 632: #define ARG_REQUIRED \
! 633: if(c[1] || !*(++carg)){ \
! 634: fprintf(stderr, "%s: option '%c' requires an argument\n", parser3_filespec, *c); \
! 635: usage(); \
! 636: }
1.294 moko 637:
1.249 misha 638: int main(int argc, char *argv[]) {
1.233 paf 639: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.362 moko 640: pa_log("main: entry");
1.233 paf 641: #endif
1.217 paf 642:
1.364 ! moko 643: if(!argc || !argv[0])
! 644: usage();
! 645: parser3_filespec = MAYBE_BACK_SLASHES_TO_SLASHES(argv[0]);
! 646:
1.294 moko 647: umask(2);
648:
649: // were we started as CGI?
1.316 moko 650: bool cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION");
1.357 moko 651: if(!cgi)
1.358 moko 652: sapi_info = &sapi_console;
1.294 moko 653:
1.203 paf 654: #ifdef SIGPIPE
1.325 moko 655: signal(SIGPIPE, SIGPIPE_handler);
1.203 paf 656: #endif
1.354 moko 657: char* raw_filespec_to_process = NULL;
1.210 paf 658: if(cgi) {
1.184 paf 659: raw_filespec_to_process=getenv("PATH_TRANSLATED");
1.319 moko 660: argv_extra=argv + 1;
1.210 paf 661: } else {
1.364 ! moko 662: char** carg = argv + 1;
! 663: for(;*carg; carg++){
! 664: if((*carg)[0] != '-')
1.184 paf 665: break;
1.245 misha 666:
1.364 ! moko 667: for(char* c=(*carg)+1; *c; c++){
! 668: switch (*c) {
1.245 misha 669: case 'h':
1.364 ! moko 670: usage();
1.245 misha 671: break;
672: case 'f':
1.364 ! moko 673: ARG_REQUIRED;
! 674: config_filespec=*carg;
1.245 misha 675: break;
1.362 moko 676: case 'l':
1.364 ! moko 677: ARG_REQUIRED;
! 678: log_filespec=*carg;
1.362 moko 679: break;
1.294 moko 680: case 'p':
1.364 ! moko 681: ARG_REQUIRED;
! 682: httpd_host_port=*carg;
1.294 moko 683: break;
1.185 paf 684: #ifdef WITH_MAILRECEIVE
1.245 misha 685: case 'm':
686: mail_received=true;
687: break;
688: #endif
689: default:
1.364 ! moko 690: fprintf(stderr, "%s: invalid option '%c'\n", parser3_filespec, *c);
! 691: usage();
1.245 misha 692: break;
693: }
1.184 paf 694: }
695: }
1.245 misha 696:
1.364 ! moko 697: if (*carg) {
! 698: raw_filespec_to_process=*carg;
1.294 moko 699: } else {
1.364 ! moko 700: if(!httpd_host_port)
! 701: usage("%s: file not specified\n");
1.10 paf 702: }
1.294 moko 703:
1.364 ! moko 704: if (httpd_host_port && mail_received)
! 705: usage("%s: -p and -m options should not be used together\n");
1.310 moko 706:
1.364 ! moko 707: argv_extra=carg;
1.10 paf 708: }
709:
1.264 moko 710: #ifdef _MSC_VER
1.100 parser 711: setmode(fileno(stdin), _O_BINARY);
712: setmode(fileno(stdout), _O_BINARY);
713: setmode(fileno(stderr), _O_BINARY);
714: #endif
715:
1.218 paf 716: #if defined(_MSC_VER) && defined(_DEBUG)
1.148 paf 717: // Get current flag
718: int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG );
719:
720: // Turn on leak-checking bit
721: tmpFlag |= _CRTDBG_LEAK_CHECK_DF;
722:
723: // Set flag to the new value
724: _CrtSetDbgFlag( tmpFlag );
1.138 paf 725:
1.218 paf 726: _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE );
727: _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR );
1.138 paf 728: #endif
729:
1.318 moko 730: try { // global try
731: if(raw_filespec_to_process && *raw_filespec_to_process){
1.351 moko 732: filespec_to_process=full_disk_path(raw_filespec_to_process);
1.318 moko 733: }
1.10 paf 734:
1.316 moko 735: REAL_PARSER_HANDLER(cgi);
1.361 moko 736: } catch(const Exception& e) { // exception in config_handler
1.359 moko 737: SAPI::log(*sapi_info, "%s", e.comment());
738: SAPI::send_error(*sapi_info, e.comment(), strcmp(e.type(), "file.missing") ? "500" : "404");
1.16 paf 739: }
1.109 parser 740:
1.233 paf 741: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.362 moko 742: pa_log("main: successful return");
1.233 paf 743: #endif
1.358 moko 744: return sapi_info->http_response_code < 100 ? sapi_info->http_response_code : 0;
1.1 paf 745: }
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