Annotation of parser3/src/targets/cgi/parser3.C, revision 1.330
1.27 paf 1: /** @file
2: Parser: scripting and CGI main.
3:
1.329 moko 4: Copyright (c) 2001-2020 Art. Lebedev Studio (http://www.artlebedev.com)
1.154 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.189 paf 6: */
1.27 paf 7:
1.330 ! moko 8: volatile const char * IDENT_PARSER3_C="$Id: parser3.C,v 1.329 2020/12/15 17:10:38 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"
1.266 moko 17: #include "pa_vconsole.h"
1.294 moko 18: #include "pa_sapi_info.h"
1.207 paf 19:
1.263 moko 20: #ifdef _MSC_VER
1.264 moko 21: #include <crtdbg.h>
1.263 moko 22: #include <windows.h>
23: #include <direct.h>
1.328 moko 24:
25: extern "C" HANDLE WINAPI GC_CreateThread(LPSECURITY_ATTRIBUTES, DWORD, LPTHREAD_START_ROUTINE, LPVOID, DWORD, LPDWORD);
26:
27: #else
28:
29: extern "C" int GC_pthread_create(pthread_t *, const pthread_attr_t *, void *(*)(void *), void * /* arg */);
30:
1.120 parser 31: #endif
32:
1.232 paf 33: // defines
1.231 paf 34:
1.233 paf 35: // comment remove me after debugging
1.288 moko 36: //#define PA_DEBUG_CGI_ENTRY_EXIT "parser3-debug.log"
1.233 paf 37:
1.278 moko 38: #if defined(_MSC_VER) && !defined(_DEBUG)
1.231 paf 39: # define PA_SUPPRESS_SYSTEM_EXCEPTION
40: #endif
41:
1.109 parser 42: // consts
1.84 parser 43:
1.175 paf 44: #define REDIRECT_PREFIX "REDIRECT_"
1.181 paf 45: #define PARSER_CONFIG_ENV_NAME "CGI_PARSER_CONFIG"
1.226 paf 46: #define PARSER_LOG_ENV_NAME "CGI_PARSER_LOG"
1.159 paf 47:
1.316 moko 48: static const char* filespec_to_process = 0; // [file]
49: static const char* httpd_host_port = 0; // -p option
1.319 moko 50: static const char* config_filespec = 0; // -f option or from env or next to the executable if exists
1.316 moko 51: static bool mail_received = false; // -m option? [asked to parse incoming message to $mail:received]
1.322 moko 52: static char* parser3_filespec = 0; // argv[0]
1.319 moko 53: static char** argv_extra = NULL;
1.245 misha 54:
1.317 moko 55: // for error logging
1.325 moko 56: static THREAD_LOCAL Request_info request_info; // global for correct log() reporting
1.322 moko 57: static const char* filespec_4log = NULL; // null only if system-wide auto.p used
1.201 paf 58:
1.46 paf 59: // SAPI
1.86 parser 60:
1.218 paf 61: static void log(const char* fmt, va_list args) {
1.193 paf 62: bool opened=false;
1.61 paf 63: FILE *f=0;
64:
1.226 paf 65: const char* log_by_env=getenv(PARSER_LOG_ENV_NAME);
66: if(!log_by_env)
67: log_by_env=getenv(REDIRECT_PREFIX PARSER_LOG_ENV_NAME);
68: if(log_by_env) {
69: f=fopen(log_by_env, "at");
70: opened=f!=0;
71: }
1.272 moko 72: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.233 paf 73: f=fopen(PA_DEBUG_CGI_ENTRY_EXIT, "at");
74: opened=f!=0;
75: #endif
1.226 paf 76:
1.316 moko 77: if(!opened && filespec_4log) {
1.193 paf 78: char beside_config_path[MAX_STRING];
1.316 moko 79: strncpy(beside_config_path, filespec_4log, MAX_STRING-1); beside_config_path[MAX_STRING-1]=0;
1.272 moko 80: if(!(rsplit(beside_config_path, '/') || rsplit(beside_config_path, '\\'))) { // strip filename
1.193 paf 81: // no path, just filename
1.316 moko 82: strcpy(beside_config_path, ".");
1.193 paf 83: }
84:
85: char file_spec[MAX_STRING];
1.272 moko 86: snprintf(file_spec, MAX_STRING, "%s/parser3.log", beside_config_path);
1.193 paf 87: f=fopen(file_spec, "at");
88: opened=f!=0;
89: }
1.192 paf 90: // fallback to stderr
1.61 paf 91: if(!opened)
92: f=stderr;
1.208 paf 93:
94: // use no memory [so that we could log out-of-memory error]
95: setbuf(f, 0); // stderr stream is unbuffered by default, but still...
1.61 paf 96:
97: // prefix
98: time_t t=time(0);
1.218 paf 99: if(const char* stamp=ctime(&t)) { // never saw that
1.173 paf 100: if(size_t len=strlen(stamp)) // saw once stamp being =""
1.272 moko 101: fprintf(f, "[%.*s] [%u] ", (int)len-1, stamp, (unsigned int)getpid() );
1.171 paf 102: }
1.61 paf 103: // message
1.117 parser 104:
1.246 misha 105: char buf[MAX_LOG_STRING];
106: size_t size=vsnprintf(buf, MAX_LOG_STRING, fmt, args);
107: size=remove_crlf(buf, buf+size);
1.239 paf 108: fwrite(buf, size, 1, f);
109:
1.297 moko 110: if(request_info.method) {
1.302 moko 111: fprintf(f, " [uri=%s, method=%s, cl=%lu]\n", request_info.uri ? request_info.uri : "<unknown>", request_info.method, (unsigned long)request_info.content_length);
1.297 moko 112: } else
113: fputs(" [no request info]\n", f);
1.61 paf 114:
115: if(opened)
116: fclose(f);
1.85 parser 117: else
118: fflush(f);
1.124 parser 119: }
1.272 moko 120:
1.236 paf 121: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.233 paf 122: static void log(const char* fmt, ...) {
1.272 moko 123: va_list args;
1.233 paf 124: va_start(args,fmt);
125: log(fmt, args);
126: va_end(args);
127: }
1.236 paf 128: #endif
1.124 parser 129:
1.322 moko 130: // appends to parser3.log located next to the config file if openable, to stderr otherwize
1.218 paf 131: void SAPI::log(SAPI_Info&, const char* fmt, ...) {
1.272 moko 132: va_list args;
1.124 parser 133: va_start(args,fmt);
134: ::log(fmt, args);
135: va_end(args);
136: }
137:
1.290 moko 138: void SAPI::die(const char* fmt, ...) {
139: va_list args;
140:
141: // logging first, first vsnprintf
142: va_start(args,fmt);
143: ::log(fmt, args);
144: va_end(args);
1.138 paf 145:
1.290 moko 146: // inform user, second vsnprintf
147: va_start(args, fmt);
1.299 moko 148: char message[MAX_STRING];
1.300 moko 149: vsnprintf(message, MAX_STRING, fmt, args);
1.134 paf 150:
1.299 moko 151: SAPI::send_error(*sapiInfo, message);
1.290 moko 152: exit(1);
1.258 moko 153: // va_end(args);
1.28 paf 154: }
155:
1.294 moko 156: char* SAPI::Env::get(SAPI_Info& info, const char* name) {
157: return info.get_env(name);
1.218 paf 158: }
159:
1.305 moko 160: bool SAPI::Env::set(SAPI_Info& info, const char* name, const char* value) {
161: return info.set_env(name, value);
162: }
163:
1.294 moko 164: const char* const *SAPI::Env::get(SAPI_Info& info) {
165: return info.get_env();
1.180 paf 166: }
167:
1.294 moko 168: size_t SAPI::read_post(SAPI_Info& info, char *buf, size_t max_bytes) {
169: return info.read_post(buf, max_bytes);
1.10 paf 170: }
171:
1.294 moko 172: void SAPI::add_header_attribute(SAPI_Info& info, const char* dont_store_key, const char* dont_store_value) {
173: info.add_header_attribute(dont_store_key, dont_store_value);
1.19 paf 174: }
175:
1.294 moko 176: void SAPI::send_header(SAPI_Info& info) {
177: info.send_header();
1.30 paf 178: }
1.20 paf 179:
1.294 moko 180: size_t SAPI::send_body(SAPI_Info& info, const void *buf, size_t size) {
181: return info.send_body(buf, size);
1.58 paf 182: }
183:
1.314 moko 184: static void full_disk_path(const char* file_name, char *buf, size_t buf_size) {
1.308 moko 185: if(file_name[0]=='/'
1.167 paf 186: #ifdef WIN32
1.308 moko 187: || file_name[0] && file_name[1]==':'
1.167 paf 188: #endif
1.308 moko 189: ){
190: strncpy(buf, file_name, buf_size-1); buf[buf_size-1]=0;
191: } else {
192: char cwd[MAX_STRING];
193: snprintf(buf, buf_size, "%s/%s", getcwd(cwd, MAX_STRING) ? cwd : "", file_name);
194: }
1.166 paf 195: #ifdef WIN32
196: back_slashes_to_slashes(buf);
197: #endif
1.97 parser 198: }
199:
1.218 paf 200: static void log_signal(const char* signal_name) {
1.294 moko 201: SAPI::log(*sapiInfo, "%s received %s processing request", signal_name, request ? "while" : "before or after");
1.205 paf 202: }
203:
1.201 paf 204: #ifdef SIGUSR1
1.205 paf 205: static void SIGUSR1_handler(int /*sig*/){
206: log_signal("SIGUSR1");
1.201 paf 207: }
208: #endif
209:
210: #ifdef SIGPIPE
1.243 misha 211: #define SIGPIPE_NAME "SIGPIPE"
212: static const String sigpipe_name(SIGPIPE_NAME);
1.205 paf 213: static void SIGPIPE_handler(int /*sig*/){
1.243 misha 214: Value* sigpipe=0;
215: if(request)
1.251 misha 216: sigpipe=request->main_class.get_element(sigpipe_name);
1.243 misha 217: if(sigpipe && sigpipe->as_bool())
1.244 misha 218: log_signal(SIGPIPE_NAME);
1.243 misha 219:
1.201 paf 220: if(request)
1.276 moko 221: request->set_skip(Request::SKIP_INTERRUPTED);
1.201 paf 222: }
223: #endif
224:
1.322 moko 225: // requires pa_thread_request() in entry_exists() under Windows
1.321 moko 226: static const char *locate_config(const char *config_filespec_option, const char *executable_path){
1.322 moko 227: filespec_4log=config_filespec_option;
228: if(!filespec_4log)
1.321 moko 229: filespec_4log=getenv(PARSER_CONFIG_ENV_NAME);
1.322 moko 230: if(!filespec_4log)
231: filespec_4log=getenv(REDIRECT_PREFIX PARSER_CONFIG_ENV_NAME);
232: if(!filespec_4log){
1.321 moko 233: // next to the executable
234: char *beside_executable_path = pa_strdup(executable_path);
235: bool stripped_filename = rsplit(beside_executable_path, '/') || rsplit(beside_executable_path, '\\');
236: filespec_4log = pa_strcat(stripped_filename ? beside_executable_path : "." /* no path, just filename */ , "/" AUTO_FILE_NAME);
1.322 moko 237: if(entry_exists(filespec_4log))
238: return filespec_4log;
239: #ifdef SYSTEM_CONFIG_FILE
240: if(entry_exists(SYSTEM_CONFIG_FILE)){
241: filespec_4log=NULL;
242: return SYSTEM_CONFIG_FILE;
243: }
244: #endif
245: return NULL;
1.321 moko 246: }
247: return filespec_4log;
248: }
249:
1.227 paf 250: #ifdef WIN32
1.292 moko 251: 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)
284: #else
285: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) s
1.227 paf 286: #endif
287:
1.256 misha 288:
289: class RequestController {
290: public:
291: RequestController(Request* r){
292: ::request=r;
293: }
294: ~RequestController(){
295: ::request=0;
296: }
297: };
298:
1.317 moko 299: static void config_handler(SAPI_Info &info) {
300: char document_root_buf[MAX_STRING];
301: full_disk_path("", document_root_buf, sizeof(document_root_buf));
302:
303: request_info.document_root = document_root_buf;
304: request_info.uri = "";
1.319 moko 305: request_info.argv = argv_extra;
1.317 moko 306:
307: // prepare to process request
1.323 moko 308: Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT));
1.330 ! moko 309: // only once
! 310: config_filespec = locate_config(config_filespec, parser3_filespec);
! 311: // process main auto.p only
! 312: r.core(config_filespec, false, String::Empty);
1.317 moko 313: }
314:
315: static void connection_handler(SAPI_Info_HTTPD &info, HTTPD_Connection &connection) {
1.325 moko 316: try {
317: connection.read_header();
318: info.populate_env();
319:
320: char document_root_buf[MAX_STRING];
321: full_disk_path("", document_root_buf, sizeof(document_root_buf));
322:
323: memset(&request_info, 0, sizeof(request_info));
324: request_info.document_root = document_root_buf;
325: request_info.path_translated = filespec_to_process;
326: request_info.method = connection.method();
327: request_info.query_string = connection.query();
328: request_info.uri = request_info.strip_absolute_uri(connection.uri());
329: request_info.content_type = connection.content_type();
330: request_info.content_length = (size_t)connection.content_length();
331: request_info.cookie = info.get_env("HTTP_COOKIE");
332: request_info.mail_received = false;
333: request_info.argv = argv_extra;
1.294 moko 334:
1.325 moko 335: // prepare to process request
336: Request r(info, request_info, String::Language(String::L_HTML|String::L_OPTIMIZE_BIT));
1.330 ! moko 337: // process the request
! 338: r.core(config_filespec, strcasecmp(request_info.method, "HEAD")==0, String("httpd-main"));
1.325 moko 339: } catch(const Exception& e) { // exception in connection handling or unhandled exception
340: SAPI::log(info, "%s", e.comment());
341: SAPI::send_error(info, e.comment(), info.exception_http_status(e.type()));
342: }
343: }
1.317 moko 344:
1.328 moko 345: #ifdef _MSC_VER
346: DWORD WINAPI connection_thread(void *arg){
347: #else
1.325 moko 348: static void *connection_thread(void *arg){
1.328 moko 349: #endif
1.325 moko 350: HTTPD_Connection &connection=*(HTTPD_Connection*)arg;
351: SAPI_Info_HTTPD info(connection);
1.294 moko 352:
1.325 moko 353: try {
354: connection_handler(info, connection);
355: } catch(const Exception& e) { // exception in send_error
356: SAPI::log(*sapiInfo, "%s", e.comment());
1.294 moko 357: }
1.325 moko 358:
359: delete(&connection);
1.328 moko 360: return 0;
1.294 moko 361: }
362:
1.317 moko 363: static void httpd_mode() {
1.325 moko 364: config_handler(*sapiInfo);
365:
1.296 moko 366: int sock = HTTPD_Server::bind(httpd_host_port);
1.294 moko 367:
1.327 moko 368: #ifdef SIGCHLD
1.325 moko 369: signal(SIGCHLD, SIG_IGN);
1.327 moko 370: #endif
371: #ifdef SIGPIPE
1.325 moko 372: signal(SIGPIPE, SIG_IGN);
373: #endif
1.317 moko 374:
1.297 moko 375: while(1){
1.328 moko 376: #ifndef _MSC_VER
1.325 moko 377: pid_t pid=1;
1.328 moko 378: #endif
1.303 moko 379: try {
380: HTTPD_Connection connection;
381: if(!connection.accept(sock, 5))
382: continue;
383:
1.325 moko 384: switch (HTTPD_Server::mode) {
385: case HTTPD_Server::MULTITHREADED:
1.328 moko 386: #ifdef _MSC_VER
387: if (!GC_CreateThread(0, 0, connection_thread, new HTTPD_Connection(connection), 0, 0))
388: throw Exception("httpd.fork", 0, "thread creation failed");
389: connection.sock = -1;
390: break;
391: #else
1.325 moko 392: pthread_t thread;
393: pthread_attr_t attr;
394: pthread_attr_init(&attr);
395: pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
396:
397: if(int result=GC_pthread_create(&thread, &attr, connection_thread, new HTTPD_Connection(connection)))
398: throw Exception("httpd.fork", 0, "thread creation failed (%d)", result);
399: connection.sock=-1;
400: break;
401: case HTTPD_Server::PARALLEL:
402: pid=fork();
403: if(pid<0)
404: throw Exception("httpd.fork", 0, "fork failed: %s (%d)", strerror(errno), errno);
405: if(pid>0)
406: continue; // parent should close connection.sock as well
407: #endif
408: case HTTPD_Server::SEQUENTIAL: // and fork child
1.303 moko 409:
1.325 moko 410: SAPI_Info_HTTPD info(connection);
411: connection_handler(info, connection);
1.303 moko 412: }
413: // closing connection socket in HTTPD_Connection destructor
414: } catch(const Exception& e) { // exception in accept or send_error
415: SAPI::log(*sapiInfo, "%s", e.comment());
1.294 moko 416: }
1.325 moko 417:
1.328 moko 418: #ifndef _MSC_VER
1.325 moko 419: if(pid==0) // fork child
420: exit(0);
1.328 moko 421: #endif
1.294 moko 422: }
423: }
1.231 paf 424:
1.294 moko 425: /** main workhorse */
426:
1.316 moko 427: static void real_parser_handler(bool cgi) {
1.280 moko 428: // init libraries
1.218 paf 429: pa_globals_init();
1.294 moko 430:
1.296 moko 431: if(httpd_host_port){
1.308 moko 432: httpd_mode();
1.294 moko 433: }
434:
435: const char* request_method=getenv("REQUEST_METHOD");
436:
1.308 moko 437: if(!filespec_to_process)
1.282 moko 438: SAPI::die("Parser/%s", PARSER_VERSION);
1.122 parser 439:
1.166 paf 440: char document_root_buf[MAX_STRING];
1.283 moko 441:
1.297 moko 442: // global request info
1.283 moko 443: request_info.path_translated = filespec_to_process;
444: request_info.method = request_method ? request_method : "GET";
445: request_info.query_string = MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(getenv("QUERY_STRING"));
446:
1.122 parser 447: if(cgi) {
1.284 moko 448: // obligatory
1.218 paf 449: const char* path_info=getenv("PATH_INFO");
1.214 paf 450: if(!path_info)
451: SAPI::die("CGI: illegal call (missing PATH_INFO)");
1.283 moko 452:
453: request_info.document_root = getenv("DOCUMENT_ROOT");
454: if(!request_info.document_root) {
1.285 moko 455: // IIS or fcgiwrap minimalistic setup
456: ssize_t prefix_len = strlen(filespec_to_process) - strlen(path_info);
457: if(prefix_len < 0 || strcmp(filespec_to_process + prefix_len, path_info) != 0)
458: SAPI::die("CGI: illegal call (invalid PATH_INFO in reinventing DOCUMENT_ROOT)");
459:
460: char* document_root = new(PointerFreeGC) char[prefix_len + 1/*0*/];
461: memcpy(document_root, filespec_to_process, prefix_len); document_root[prefix_len] = 0;
462: request_info.document_root = document_root;
1.283 moko 463: }
1.214 paf 464:
1.285 moko 465: request_info.uri = request_info.strip_absolute_uri(getenv("REQUEST_URI"));
1.283 moko 466: if(request_info.uri) { // apache & others stuck to standards
1.284 moko 467: // another obligatory
1.285 moko 468: const char* script_name = getenv("SCRIPT_NAME");
1.284 moko 469: if(!script_name)
470: SAPI::die("CGI: illegal call (missing SCRIPT_NAME)");
1.214 paf 471: /*
472: http://parser3/env.html?123 =OK
473: $request:uri=/env.html?123
474: REQUEST_URI='/env.html?123'
475: SCRIPT_NAME='/cgi-bin/parser3'
476: PATH_INFO='/env.html'
1.285 moko 477:
1.214 paf 478: http://parser3/cgi-bin/parser3/env.html?123 =ERROR
479: $request:uri=/cgi-bin/parser3/env.html?123
480: REQUEST_URI='/cgi-bin/parser3/env.html?123'
481: SCRIPT_NAME='/cgi-bin/parser3'
482: PATH_INFO='/env.html'
483: */
1.285 moko 484: size_t script_name_len = strlen(script_name);
485: size_t uri_len = strlen(request_info.uri);
1.283 moko 486: if(strncmp(request_info.uri, script_name, script_name_len)==0 && script_name_len != uri_len) // under IIS they are the same
1.214 paf 487: SAPI::die("CGI: illegal call (1)");
1.284 moko 488: } else { // fcgiwrap minimalistic setup
1.315 moko 489: request_info.uri = request_info.query_string && *request_info.query_string ? pa_strcat(path_info, "?", request_info.query_string) : path_info;
1.214 paf 490: }
1.283 moko 491: } else{
1.314 moko 492: full_disk_path("", document_root_buf, sizeof(document_root_buf));
1.285 moko 493: request_info.document_root = document_root_buf;
494: request_info.uri = "";
1.283 moko 495: }
1.122 parser 496:
1.283 moko 497: request_info.content_type = getenv("CONTENT_TYPE");
1.324 moko 498: request_info.content_length = (size_t)pa_atoul(getenv("CONTENT_LENGTH"));
1.283 moko 499: request_info.cookie = getenv("HTTP_COOKIE");
500: request_info.mail_received = mail_received;
1.184 paf 501:
1.319 moko 502: request_info.argv = argv_extra;
1.245 misha 503:
1.233 paf 504: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.320 moko 505: 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 506: #endif
507:
1.122 parser 508: // prepare to process request
1.323 moko 509: Request r(*sapiInfo, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS);
1.256 misha 510: {
1.297 moko 511: // initing ::request ptr for signal handlers
1.323 moko 512: RequestController rc(&r);
1.256 misha 513: // process the request
1.323 moko 514: r.core(locate_config(config_filespec, parser3_filespec), strcasecmp(request_info.method, "HEAD")==0);
1.303 moko 515: // clearing ::request in RequestController destructor to prevent signal handlers from accessing invalid memory
1.122 parser 516: }
1.231 paf 517:
1.280 moko 518: // finalize libraries
1.225 paf 519: pa_globals_done();
1.218 paf 520: }
521:
1.231 paf 522: #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION
1.316 moko 523: static const Exception call_real_parser_handler__do_PEH_return_it(bool cgi) {
1.231 paf 524: try {
1.316 moko 525: real_parser_handler(cgi);
1.231 paf 526: } catch(const Exception& e) {
527: return e;
1.122 parser 528: }
1.231 paf 529:
530: return Exception();
1.122 parser 531: }
1.272 moko 532:
1.316 moko 533: static void call_real_parser_handler__supress_system_exception(bool cgi) {
1.231 paf 534: Exception parser_exception;
535: LPEXCEPTION_POINTERS system_exception=0;
1.122 parser 536:
1.231 paf 537: __try {
1.316 moko 538: parser_exception=call_real_parser_handler__do_PEH_return_it(cgi);
1.288 moko 539: } __except ( (system_exception=GetExceptionInformation()), EXCEPTION_EXECUTE_HANDLER) {
1.231 paf 540: if(system_exception)
541: if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
1.272 moko 542: throw Exception("system", 0, "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress);
1.218 paf 543: else
1.272 moko 544: throw Exception("system", 0, "<no exception record>");
1.218 paf 545: else
1.272 moko 546: throw Exception("system", 0, "<no exception information>");
1.231 paf 547: }
548:
549: if(parser_exception)
550: throw Exception(parser_exception);
551: }
1.273 moko 552:
553: #define REAL_PARSER_HANDLER call_real_parser_handler__supress_system_exception
554: #else
555: #define REAL_PARSER_HANDLER real_parser_handler
1.218 paf 556: #endif
1.131 paf 557:
1.218 paf 558: static void usage(const char* program) {
1.188 paf 559: printf(
1.235 paf 560: "Parser/%s\n"
1.329 moko 561: "Copyright (c) 2001-2020 Art. Lebedev Studio (http://www.artlebedev.com)\n"
1.184 paf 562: "Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)\n"
563: "\n"
1.307 moko 564: "Usage: %s [options] [file]\n"
1.184 paf 565: "Options are:\n"
1.185 paf 566: #ifdef WITH_MAILRECEIVE
1.193 paf 567: " -m Parse mail, put received letter to $mail:received\n"
1.184 paf 568: #endif
1.193 paf 569: " -f config_file Use this config file (/path/to/auto.p)\n"
1.296 moko 570: " -p [host:]port Start web server on this port\n"
1.272 moko 571: " -h Display usage information (this message)\n",
572: PARSER_VERSION,
1.184 paf 573: program);
574: exit(EINVAL);
575: }
576:
1.294 moko 577:
1.249 misha 578: int main(int argc, char *argv[]) {
1.233 paf 579: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
580: log("main: entry");
581: #endif
1.217 paf 582:
1.321 moko 583: parser3_filespec = argv[0];
1.294 moko 584: umask(2);
585:
586: // were we started as CGI?
1.316 moko 587: bool cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION");
1.294 moko 588: sapiInfo = cgi ? new SAPI_Info_CGI() : new SAPI_Info();
589:
1.203 paf 590: #ifdef SIGUSR1
1.325 moko 591: signal(SIGUSR1, SIGUSR1_handler);
1.203 paf 592: #endif
593: #ifdef SIGPIPE
1.325 moko 594: signal(SIGPIPE, SIGPIPE_handler);
1.203 paf 595: #endif
596:
1.301 moko 597: char *raw_filespec_to_process = NULL;
1.210 paf 598: if(cgi) {
1.184 paf 599: raw_filespec_to_process=getenv("PATH_TRANSLATED");
1.319 moko 600: argv_extra=argv + 1;
1.210 paf 601: } else {
1.250 misha 602: int optind=1;
1.245 misha 603: while(optind < argc){
604: char *carg = argv[optind];
605: if(carg[0] != '-')
1.184 paf 606: break;
1.245 misha 607:
608: for(size_t k = 1; k < strlen(carg); k++){
609: char c = carg[k];
610: switch (c) {
611: case 'h':
612: usage(argv[0]);
613: break;
614: case 'f':
615: if(optind < argc - 1){
616: optind++;
1.311 moko 617: config_filespec=argv[optind];
1.245 misha 618: }
619: break;
1.294 moko 620: case 'p':
621: if(optind < argc - 1){
622: optind++;
1.296 moko 623: httpd_host_port=argv[optind];
1.294 moko 624: }
625: break;
1.185 paf 626: #ifdef WITH_MAILRECEIVE
1.245 misha 627: case 'm':
628: mail_received=true;
629: break;
630: #endif
631: default:
632: fprintf(stderr, "%s: invalid option '%c'\n", argv[0], c);
633: usage(argv[0]);
634: break;
635: }
1.184 paf 636: }
1.245 misha 637: optind++;
1.184 paf 638: }
1.245 misha 639:
640: if (optind > argc - 1) {
1.296 moko 641: if(!httpd_host_port) {
1.294 moko 642: fprintf(stderr, "%s: file not specified\n", argv[0]);
643: usage(argv[0]);
644: }
645: } else {
646: raw_filespec_to_process=argv[optind];
1.10 paf 647: }
1.294 moko 648:
1.296 moko 649: if (httpd_host_port && mail_received) {
1.294 moko 650: fprintf(stderr, "%s: -p and -m options should not be used together\n", argv[0]);
651: usage(argv[0]);
652: }
1.310 moko 653:
1.319 moko 654: argv_extra=argv + optind;
1.10 paf 655: }
656:
1.264 moko 657: #ifdef _MSC_VER
1.100 parser 658: setmode(fileno(stdin), _O_BINARY);
659: setmode(fileno(stdout), _O_BINARY);
660: setmode(fileno(stderr), _O_BINARY);
661: #endif
662:
1.218 paf 663: #if defined(_MSC_VER) && defined(_DEBUG)
1.148 paf 664: // Get current flag
665: int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG );
666:
667: // Turn on leak-checking bit
668: tmpFlag |= _CRTDBG_LEAK_CHECK_DF;
669:
670: // Set flag to the new value
671: _CrtSetDbgFlag( tmpFlag );
1.138 paf 672:
1.218 paf 673: _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE );
674: _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR );
1.138 paf 675: #endif
676:
1.318 moko 677: try { // global try
678: char filespec_to_process_buf[MAX_STRING];
679: if(raw_filespec_to_process && *raw_filespec_to_process){
680: full_disk_path(raw_filespec_to_process, filespec_to_process_buf, sizeof(filespec_to_process_buf));
681: filespec_to_process=filespec_to_process_buf;
682: }
1.10 paf 683:
1.316 moko 684: REAL_PARSER_HANDLER(cgi);
1.292 moko 685: } catch(const Exception& e) { // exception in unhandled exception
1.298 moko 686: SAPI::die("%s", e.comment());
1.16 paf 687: }
1.109 parser 688:
1.233 paf 689: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
690: log("main: successful return");
691: #endif
1.299 moko 692: return sapiInfo->http_response_code < 100 ? sapiInfo->http_response_code : 0;
1.1 paf 693: }
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