Annotation of parser3/src/targets/cgi/parser3.C, revision 1.291
1.27 paf 1: /** @file
2: Parser: scripting and CGI main.
3:
1.277 moko 4: Copyright (c) 2001-2017 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:
1.291 ! moko 8: volatile const char * IDENT_PARSER3_C="$Id: parser3.C,v 1.290 2020/08/13 11:44:21 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"
1.207 paf 18:
1.263 moko 19: #ifdef _MSC_VER
1.264 moko 20: #include <crtdbg.h>
1.263 moko 21: #include <windows.h>
22: #include <direct.h>
1.120 parser 23: #endif
24:
1.232 paf 25: // defines
1.231 paf 26:
1.233 paf 27: // comment remove me after debugging
1.288 moko 28: //#define PA_DEBUG_CGI_ENTRY_EXIT "parser3-debug.log"
1.233 paf 29:
1.278 moko 30: #if defined(_MSC_VER) && !defined(_DEBUG)
1.231 paf 31: # define PA_SUPPRESS_SYSTEM_EXCEPTION
32: #endif
33:
1.109 parser 34: // consts
1.84 parser 35:
1.175 paf 36: #define REDIRECT_PREFIX "REDIRECT_"
1.181 paf 37: #define PARSER_CONFIG_ENV_NAME "CGI_PARSER_CONFIG"
1.226 paf 38: #define PARSER_LOG_ENV_NAME "CGI_PARSER_LOG"
1.159 paf 39:
1.42 paf 40: /// IIS refuses to read bigger chunks
1.264 moko 41: const size_t READ_POST_CHUNK_SIZE=0x400*0x400; // 1M
1.42 paf 42:
1.218 paf 43: static const char* config_filespec_cstr=0;
1.192 paf 44:
1.245 misha 45: static int args_skip=1;
46: static char** argv_all = NULL;
47:
1.184 paf 48: static bool cgi; ///< we were started as CGI?
49: static bool mail_received=false; ///< we were started with -m option? [asked to parse incoming message to $mail:received]
1.5 paf 50:
1.201 paf 51: // for signal handlers
52: Request *request=0;
1.218 paf 53: Request_info *request_info=0;
54: bool execution_canceled=false;
1.201 paf 55:
1.46 paf 56: // SAPI
1.86 parser 57:
1.275 moko 58: class SAPI_Info {
59: public:
1.274 moko 60: int http_response_code;
61: } SAPI_info = { 0 };
1.218 paf 62:
63: static void log(const char* fmt, va_list args) {
1.193 paf 64: bool opened=false;
1.61 paf 65: FILE *f=0;
66:
1.226 paf 67: const char* log_by_env=getenv(PARSER_LOG_ENV_NAME);
68: if(!log_by_env)
69: log_by_env=getenv(REDIRECT_PREFIX PARSER_LOG_ENV_NAME);
70: if(log_by_env) {
71: f=fopen(log_by_env, "at");
72: opened=f!=0;
73: }
1.272 moko 74: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.233 paf 75: f=fopen(PA_DEBUG_CGI_ENTRY_EXIT, "at");
76: opened=f!=0;
77: #endif
1.226 paf 78:
79: if(!opened && config_filespec_cstr) {
1.193 paf 80: char beside_config_path[MAX_STRING];
81: strncpy(beside_config_path, config_filespec_cstr, MAX_STRING-1); beside_config_path[MAX_STRING-1]=0;
1.272 moko 82: if(!(rsplit(beside_config_path, '/') || rsplit(beside_config_path, '\\'))) { // strip filename
1.193 paf 83: // no path, just filename
84: beside_config_path[0]='.'; beside_config_path[1]=0;
85: }
86:
87: char file_spec[MAX_STRING];
1.272 moko 88: snprintf(file_spec, MAX_STRING, "%s/parser3.log", beside_config_path);
1.193 paf 89: f=fopen(file_spec, "at");
90: opened=f!=0;
91: }
1.192 paf 92: // fallback to stderr
1.61 paf 93: if(!opened)
94: f=stderr;
1.208 paf 95:
96: // use no memory [so that we could log out-of-memory error]
97: setbuf(f, 0); // stderr stream is unbuffered by default, but still...
1.61 paf 98:
99: // prefix
100: time_t t=time(0);
1.218 paf 101: if(const char* stamp=ctime(&t)) { // never saw that
1.173 paf 102: if(size_t len=strlen(stamp)) // saw once stamp being =""
1.272 moko 103: fprintf(f, "[%.*s] [%u] ", (int)len-1, stamp, (unsigned int)getpid() );
1.171 paf 104: }
1.61 paf 105: // message
1.117 parser 106:
1.246 misha 107: char buf[MAX_LOG_STRING];
108: size_t size=vsnprintf(buf, MAX_LOG_STRING, fmt, args);
109: size=remove_crlf(buf, buf+size);
1.239 paf 110: fwrite(buf, size, 1, f);
111:
112: if(request_info)
1.261 moko 113: fprintf(f, " [uri=%s, method=%s, cl=%lu]",
1.287 moko 114: request_info->uri ? request_info->uri : "<unknown>",
115: request_info->method ? request_info->method : "<unknown>",
1.239 paf 116: request_info->content_length);
117: else
118: fputs(" [no request info]", f);
1.117 parser 119:
1.61 paf 120: // newline
1.239 paf 121: fputs("\n", f);
1.61 paf 122:
123: if(opened)
124: fclose(f);
1.85 parser 125: else
126: fflush(f);
1.124 parser 127: }
1.272 moko 128:
1.236 paf 129: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.233 paf 130: static void log(const char* fmt, ...) {
1.272 moko 131: va_list args;
1.233 paf 132: va_start(args,fmt);
133: log(fmt, args);
134: va_end(args);
135: }
1.236 paf 136: #endif
1.124 parser 137:
138: // appends to parser3.log located beside my binary 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);
142: ::log(fmt, args);
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);
151: ::log(fmt, args);
152: va_end(args);
1.138 paf 153:
1.290 moko 154: // inform user, second vsnprintf
155: va_start(args, fmt);
1.134 paf 156: char body[MAX_STRING];
1.138 paf 157: int content_length=vsnprintf(body, MAX_STRING, fmt, args);
1.134 paf 158:
159: // prepare header
160: // let's be honest, that's bad we couldn't produce valid output
1.255 misha 161: // capitalized headers passed for preventing malloc during capitalization
162: SAPI::add_header_attribute(SAPI_info, HTTP_STATUS_CAPITALIZED, "500");
163: SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_TYPE_CAPITALIZED, "text/plain");
164: // don't use 'format' function because it calls malloc
165: char content_length_cstr[MAX_NUMBER];
166: snprintf(content_length_cstr, sizeof(content_length_cstr), "%u", content_length);
167: SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_LENGTH_CAPITALIZED, content_length_cstr);
1.134 paf 168:
169: // send header
1.218 paf 170: SAPI::send_header(SAPI_info);
1.134 paf 171:
172: // body
1.218 paf 173: SAPI::send_body(SAPI_info, body, content_length);
1.134 paf 174:
1.290 moko 175: exit(1);
1.258 moko 176: // va_end(args);
1.28 paf 177: }
178:
1.267 moko 179: char* SAPI::Env::get(SAPI_Info& , const char* name) {
1.218 paf 180: if(char *local=getenv(name))
181: return pa_strdup(local);
182: else
183: return 0;
184: }
185:
1.267 moko 186: const char* const *SAPI::Env::get(SAPI_Info&) {
1.180 paf 187: #ifdef _MSC_VER
188: extern char **_environ;
189: return _environ;
190: #else
191: extern char **environ;
192: return environ;
193: #endif
194: }
195:
1.218 paf 196: size_t SAPI::read_post(SAPI_Info& , char *buf, size_t max_bytes) {
1.59 paf 197: size_t read_size=0;
1.12 paf 198: do {
1.272 moko 199: ssize_t chunk_size=read(fileno(stdin), buf+read_size, min(READ_POST_CHUNK_SIZE, max_bytes-read_size));
1.129 paf 200: if(chunk_size<=0)
1.12 paf 201: break;
202: read_size+=chunk_size;
203: } while(read_size<max_bytes);
204:
205: return read_size;
1.10 paf 206: }
207:
1.218 paf 208: void SAPI::add_header_attribute(SAPI_Info& , const char* dont_store_key, const char* dont_store_value) {
1.274 moko 209: if(strcasecmp(dont_store_key, HTTP_STATUS)==0)
210: SAPI_info.http_response_code=atoi(dont_store_value);
1.242 misha 211: if( cgi && (!request || !request->console.was_used()) )
1.254 misha 212: printf("%s: %s\n", capitalize(dont_store_key), dont_store_value);
1.19 paf 213: }
214:
1.218 paf 215: void SAPI::send_header(SAPI_Info& ) {
1.33 paf 216: if(cgi) {
1.20 paf 217: puts("");
1.33 paf 218: }
1.30 paf 219: }
1.20 paf 220:
1.229 paf 221: size_t SAPI::send_body(SAPI_Info& , const void *buf, size_t size) {
222: return stdout_write(buf, size);
1.58 paf 223: }
224:
1.218 paf 225: static void full_file_spec(const char* file_name, char *buf, size_t buf_size) {
1.210 paf 226: if(file_name)
1.167 paf 227: if(file_name[0]=='/'
228: #ifdef WIN32
1.210 paf 229: || file_name[0] && file_name[1]==':'
1.167 paf 230: #endif
1.279 moko 231: ){
232: strncpy(buf, file_name, buf_size-1); buf[buf_size-1]=0;
233: } else {
1.261 moko 234: char cwd[MAX_STRING];
235: snprintf(buf, buf_size, "%s/%s", getcwd(cwd, MAX_STRING) ? cwd : "", file_name);
1.167 paf 236: }
237: else
238: buf[0]=0;
1.166 paf 239: #ifdef WIN32
240: back_slashes_to_slashes(buf);
241: #endif
1.97 parser 242: }
243:
1.218 paf 244: static void log_signal(const char* signal_name) {
245: if(request_info)
1.287 moko 246: SAPI::log(SAPI_info, "%s received while %s.", signal_name, request ? "executing code" : "reading data");
1.218 paf 247: else
1.287 moko 248: SAPI::log(SAPI_info, "%s received before or after processing request", signal_name);
1.205 paf 249: }
250:
1.201 paf 251: #ifdef SIGUSR1
1.205 paf 252: static void SIGUSR1_handler(int /*sig*/){
253: log_signal("SIGUSR1");
1.201 paf 254: }
255: #endif
256:
257: #ifdef SIGPIPE
1.243 misha 258: #define SIGPIPE_NAME "SIGPIPE"
259: static const String sigpipe_name(SIGPIPE_NAME);
1.205 paf 260: static void SIGPIPE_handler(int /*sig*/){
1.243 misha 261: Value* sigpipe=0;
262: if(request)
1.251 misha 263: sigpipe=request->main_class.get_element(sigpipe_name);
1.243 misha 264: if(sigpipe && sigpipe->as_bool())
1.244 misha 265: log_signal(SIGPIPE_NAME);
1.243 misha 266:
1.218 paf 267: execution_canceled=true;
1.201 paf 268: if(request)
1.276 moko 269: request->set_skip(Request::SKIP_INTERRUPTED);
1.201 paf 270: }
271: #endif
272:
1.227 paf 273: #ifdef WIN32
274: const char* maybe_reconstruct_IIS_status_in_qs(const char* original)
275: {
1.228 paf 276: // 404;http://servername/page[?param=value...]
1.227 paf 277: // ';' should be urlencoded by HTTP standard, so we shouldn't get it from browser
278: // and can consider that as an indication that this is IIS way to report errors
279:
1.272 moko 280: if(original && isdigit((unsigned char)original[0]) && isdigit((unsigned char)original[1]) && isdigit((unsigned char)original[2]) && original[3]==';'){
1.227 paf 281: size_t original_len=strlen(original);
1.272 moko 282: char* reconstructed=new(PointerFreeGC) char[original_len +12/*IIS-STATUS=&*/ +14/*IIS-DOCUMENT=&*/ +1];
1.227 paf 283: char* cur=reconstructed;
284: memcpy(cur, "IIS-STATUS=", 11); cur+=11;
285: memcpy(cur, original, 3); cur+=3;
286: *cur++='&';
287:
1.228 paf 288: const char* qmark_at=strchr(original, '?');
1.227 paf 289: memcpy(cur, "IIS-DOCUMENT=", 13); cur+=13;
290: {
1.272 moko 291: size_t value_len=(qmark_at ? qmark_at-original : original_len)-4;
1.227 paf 292: memcpy(cur, original+4, value_len); cur+=value_len;
293: }
294:
295: if(qmark_at) {
296: *cur++='&';
297: strcpy(cur, qmark_at+1/*skip ? itself*/);
298: } else
299: *cur=0;
300:
301: return reconstructed;
302: }
303:
304: return original;
305: }
1.283 moko 306:
307: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) maybe_reconstruct_IIS_status_in_qs(s)
308: #else
309: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) s
1.227 paf 310: #endif
311:
1.256 misha 312:
313: class RequestController {
314: public:
315: RequestController(Request* r){
316: ::request=r;
317: }
318: ~RequestController(){
319: ::request=0;
320: }
321: };
322:
1.288 moko 323: static bool locate_config(){
324: if(!config_filespec_cstr) {
325: config_filespec_cstr=getenv(PARSER_CONFIG_ENV_NAME);
326: if(!config_filespec_cstr)
327: config_filespec_cstr=getenv(REDIRECT_PREFIX PARSER_CONFIG_ENV_NAME);
328: if(!config_filespec_cstr){
329: // beside by binary
330: char beside_binary_path[MAX_STRING];
331: strncpy(beside_binary_path, argv_all[0], MAX_STRING-1); beside_binary_path[MAX_STRING-1]=0; // filespec of my binary
332: if(!(rsplit(beside_binary_path, '/') || rsplit(beside_binary_path, '\\'))) { // strip filename
333: // no path, just filename
334: // @todo full path, not ./!
335: beside_binary_path[0]='.'; beside_binary_path[1]=0;
336: }
337: char config_filespec_buf[MAX_STRING];
338: snprintf(config_filespec_buf, MAX_STRING, "%s/%s", beside_binary_path, AUTO_FILE_NAME);
339: config_filespec_cstr=pa_strdup(config_filespec_buf);
340: return entry_exists(config_filespec_cstr);
341: }
342: }
343: return true;
344: }
1.256 misha 345:
1.40 paf 346: /**
1.122 parser 347: main workhorse
1.19 paf 348:
1.272 moko 349: @todo
350: IIS: remove trailing default-document[index.html] from $request.uri.
351: to do that we need to consult metabase,
352: wich is tested but seems slow.
1.40 paf 353: */
1.272 moko 354: static void real_parser_handler(const char* filespec_to_process, const char* request_method, bool header_only) {
1.231 paf 355:
1.280 moko 356: // init libraries
1.218 paf 357: pa_globals_init();
1.122 parser 358:
1.186 paf 359: if(!filespec_to_process || !*filespec_to_process)
1.282 moko 360: SAPI::die("Parser/%s", PARSER_VERSION);
1.122 parser 361:
362: // Request info
1.285 moko 363: Request_info request_info; memset(&request_info, 0, sizeof(request_info));
1.166 paf 364: char document_root_buf[MAX_STRING];
1.283 moko 365:
366: request_info.path_translated = filespec_to_process;
367: request_info.method = request_method ? request_method : "GET";
368: request_info.query_string = MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(getenv("QUERY_STRING"));
369:
1.122 parser 370: if(cgi) {
1.284 moko 371: // obligatory
1.218 paf 372: const char* path_info=getenv("PATH_INFO");
1.214 paf 373: if(!path_info)
374: SAPI::die("CGI: illegal call (missing PATH_INFO)");
1.283 moko 375:
376: request_info.document_root = getenv("DOCUMENT_ROOT");
377: if(!request_info.document_root) {
1.285 moko 378: // IIS or fcgiwrap minimalistic setup
379: ssize_t prefix_len = strlen(filespec_to_process) - strlen(path_info);
380: if(prefix_len < 0 || strcmp(filespec_to_process + prefix_len, path_info) != 0)
381: SAPI::die("CGI: illegal call (invalid PATH_INFO in reinventing DOCUMENT_ROOT)");
382:
383: char* document_root = new(PointerFreeGC) char[prefix_len + 1/*0*/];
384: memcpy(document_root, filespec_to_process, prefix_len); document_root[prefix_len] = 0;
385: request_info.document_root = document_root;
1.283 moko 386: }
1.214 paf 387:
1.285 moko 388: request_info.uri = request_info.strip_absolute_uri(getenv("REQUEST_URI"));
1.283 moko 389: if(request_info.uri) { // apache & others stuck to standards
1.284 moko 390: // another obligatory
1.285 moko 391: const char* script_name = getenv("SCRIPT_NAME");
1.284 moko 392: if(!script_name)
393: SAPI::die("CGI: illegal call (missing SCRIPT_NAME)");
1.214 paf 394: /*
395: http://parser3/env.html?123 =OK
396: $request:uri=/env.html?123
397: REQUEST_URI='/env.html?123'
398: SCRIPT_NAME='/cgi-bin/parser3'
399: PATH_INFO='/env.html'
1.285 moko 400:
1.214 paf 401: http://parser3/cgi-bin/parser3/env.html?123 =ERROR
402: $request:uri=/cgi-bin/parser3/env.html?123
403: REQUEST_URI='/cgi-bin/parser3/env.html?123'
404: SCRIPT_NAME='/cgi-bin/parser3'
405: PATH_INFO='/env.html'
406: */
1.285 moko 407: size_t script_name_len = strlen(script_name);
408: size_t uri_len = strlen(request_info.uri);
1.283 moko 409: 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 410: SAPI::die("CGI: illegal call (1)");
1.284 moko 411: } else { // fcgiwrap minimalistic setup
1.283 moko 412:
1.286 moko 413: if(request_info.query_string && *request_info.query_string) {
1.285 moko 414: char* reconstructed_uri = new(PointerFreeGC) char[strlen(path_info) + 1/*'?'*/+ strlen(request_info.query_string) + 1/*0*/];
1.283 moko 415: strcpy(reconstructed_uri, path_info);
416: strcat(reconstructed_uri, "?");
417: strcat(reconstructed_uri, request_info.query_string);
1.285 moko 418: request_info.uri = reconstructed_uri;
1.283 moko 419: } else
1.285 moko 420: request_info.uri = path_info;
1.214 paf 421: }
1.283 moko 422: } else{
423: full_file_spec("", document_root_buf, sizeof(document_root_buf));
1.285 moko 424: request_info.document_root = document_root_buf;
425: request_info.uri = "";
1.283 moko 426: }
1.122 parser 427:
1.283 moko 428: request_info.content_type = getenv("CONTENT_TYPE");
429: const char* content_length = getenv("CONTENT_LENGTH");
430: request_info.content_length = content_length ? atoi(content_length) : 0;
431: request_info.cookie = getenv("HTTP_COOKIE");
432: request_info.mail_received = mail_received;
1.184 paf 433:
1.283 moko 434: request_info.argv = argv_all;
435: request_info.args_skip = args_skip;
1.245 misha 436:
1.218 paf 437: // get request_info ptr for signal handlers
1.283 moko 438: ::request_info = &request_info;
1.218 paf 439: if(execution_canceled)
440: SAPI::die("Execution canceled");
1.198 paf 441:
1.233 paf 442: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
443: log("request_info: method=%s, uri=%s, q=%s, dr=%s, pt=%s, cookies=%s, cl=%u",
444: request_info.method,
445: request_info.uri,
446: request_info.query_string,
447: request_info.document_root,
448: request_info.path_translated,
449: request_info.cookie,
450: request_info.content_length);
451: #endif
452:
1.122 parser 453: // prepare to process request
1.272 moko 454: Request request(SAPI_info, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS);
1.256 misha 455: {
456: // get ::request ptr for signal handlers
457: RequestController rc(&request);
1.288 moko 458: bool fail_on_config_read_problem=locate_config();
1.256 misha 459: // process the request
1.272 moko 460: request.core(config_filespec_cstr, fail_on_config_read_problem, header_only);
1.256 misha 461: // ::request cleared in RequestController desctructor to prevent signal handlers from accessing invalid memory
1.122 parser 462: }
1.231 paf 463:
1.280 moko 464: // finalize libraries
1.225 paf 465: pa_globals_done();
1.218 paf 466: }
467:
1.231 paf 468: #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION
1.289 moko 469: static const Exception call_real_parser_handler__do_PEH_return_it(const char* filespec_to_process, const char* request_method, bool header_only) {
1.231 paf 470: try {
1.272 moko 471: real_parser_handler(filespec_to_process, request_method, header_only);
1.231 paf 472: } catch(const Exception& e) {
473: return e;
1.122 parser 474: }
1.231 paf 475:
476: return Exception();
1.122 parser 477: }
1.272 moko 478:
1.289 moko 479: static void call_real_parser_handler__supress_system_exception(const char* filespec_to_process, const char* request_method, bool header_only) {
1.231 paf 480: Exception parser_exception;
481: LPEXCEPTION_POINTERS system_exception=0;
1.122 parser 482:
1.231 paf 483: __try {
1.272 moko 484: parser_exception=call_real_parser_handler__do_PEH_return_it(filespec_to_process, request_method, header_only);
1.288 moko 485: } __except ( (system_exception=GetExceptionInformation()), EXCEPTION_EXECUTE_HANDLER) {
1.231 paf 486: if(system_exception)
487: if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
1.272 moko 488: throw Exception("system", 0, "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress);
1.218 paf 489: else
1.272 moko 490: throw Exception("system", 0, "<no exception record>");
1.218 paf 491: else
1.272 moko 492: throw Exception("system", 0, "<no exception information>");
1.231 paf 493: }
494:
495: if(parser_exception)
496: throw Exception(parser_exception);
497: }
1.273 moko 498:
499: #define REAL_PARSER_HANDLER call_real_parser_handler__supress_system_exception
500: #else
501: #define REAL_PARSER_HANDLER real_parser_handler
1.218 paf 502: #endif
1.131 paf 503:
1.218 paf 504: static void usage(const char* program) {
1.188 paf 505: printf(
1.235 paf 506: "Parser/%s\n"
1.277 moko 507: "Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com)\n"
1.184 paf 508: "Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)\n"
509: "\n"
510: "Usage: %s [options] file\n"
511: "Options are:\n"
1.185 paf 512: #ifdef WITH_MAILRECEIVE
1.193 paf 513: " -m Parse mail, put received letter to $mail:received\n"
1.184 paf 514: #endif
1.193 paf 515: " -f config_file Use this config file (/path/to/auto.p)\n"
1.272 moko 516: " -h Display usage information (this message)\n",
517: PARSER_VERSION,
1.184 paf 518: program);
519: exit(EINVAL);
520: }
521:
1.249 misha 522: int main(int argc, char *argv[]) {
1.233 paf 523: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
524: log("main: entry");
525: #endif
1.217 paf 526:
1.203 paf 527: #ifdef SIGUSR1
1.205 paf 528: if(signal(SIGUSR1, SIGUSR1_handler)==SIG_ERR)
1.203 paf 529: SAPI::die("Can not set handler for SIGUSR1");
530: #endif
531: #ifdef SIGPIPE
1.205 paf 532: if(signal(SIGPIPE, SIGPIPE_handler)==SIG_ERR)
1.203 paf 533: SAPI::die("Can not set handler for SIGPIPE");
534: #endif
535:
1.245 misha 536: argv_all=argv;
1.32 paf 537: umask(2);
538:
1.3 paf 539: // were we started as CGI?
1.272 moko 540: cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION");
541:
1.184 paf 542: char *raw_filespec_to_process;
1.210 paf 543: if(cgi) {
1.184 paf 544: raw_filespec_to_process=getenv("PATH_TRANSLATED");
1.210 paf 545: if(raw_filespec_to_process && !*raw_filespec_to_process)
546: raw_filespec_to_process=0;
547: } else {
1.250 misha 548: int optind=1;
1.245 misha 549: while(optind < argc){
550: char *carg = argv[optind];
551: if(carg[0] != '-')
1.184 paf 552: break;
1.245 misha 553:
554: for(size_t k = 1; k < strlen(carg); k++){
555: char c = carg[k];
556: switch (c) {
557: case 'h':
558: usage(argv[0]);
559: break;
560: case 'f':
561: if(optind < argc - 1){
562: optind++;
563: config_filespec_cstr=argv[optind];
564: }
565: break;
1.185 paf 566: #ifdef WITH_MAILRECEIVE
1.245 misha 567: case 'm':
568: mail_received=true;
569: break;
570: #endif
571: default:
572: fprintf(stderr, "%s: invalid option '%c'\n", argv[0], c);
573: usage(argv[0]);
574: break;
575: }
1.184 paf 576: }
1.245 misha 577: optind++;
1.184 paf 578: }
1.245 misha 579:
580: if (optind > argc - 1) {
1.184 paf 581: fprintf(stderr, "%s: file not specified\n", argv[0]);
582: usage(argv[0]);
1.10 paf 583: }
1.245 misha 584: raw_filespec_to_process=argv[optind];
585: args_skip=optind;
1.10 paf 586: }
587:
1.264 moko 588: #ifdef _MSC_VER
1.100 parser 589: setmode(fileno(stdin), _O_BINARY);
590: setmode(fileno(stdout), _O_BINARY);
591: setmode(fileno(stderr), _O_BINARY);
592: #endif
593:
1.218 paf 594: #if defined(_MSC_VER) && defined(_DEBUG)
1.148 paf 595: // Get current flag
596: int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG );
597:
598: // Turn on leak-checking bit
599: tmpFlag |= _CRTDBG_LEAK_CHECK_DF;
600:
601: // Set flag to the new value
602: _CrtSetDbgFlag( tmpFlag );
1.138 paf 603:
1.218 paf 604: _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE );
605: _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR );
1.138 paf 606: #endif
607:
1.166 paf 608: char filespec_to_process[MAX_STRING];
609: full_file_spec(raw_filespec_to_process, filespec_to_process, sizeof(filespec_to_process));
1.10 paf 610:
1.218 paf 611: const char* request_method=getenv("REQUEST_METHOD");
1.35 paf 612: bool header_only=request_method && strcasecmp(request_method, "HEAD")==0;
1.131 paf 613:
1.122 parser 614: try { // global try
1.273 moko 615: REAL_PARSER_HANDLER(filespec_to_process, request_method, header_only);
1.122 parser 616: } catch(const Exception& e) { // global problem
1.44 paf 617: // don't allocate anything on pool here:
618: // possible pool' exception not catch-ed now
619: // and there could be out-of-memory exception
1.218 paf 620: char buf[MAX_STRING];
1.272 moko 621: snprintf(buf, MAX_STRING, "Unhandled exception %s", e.comment());
1.218 paf 622: // log it
623: SAPI::log(SAPI_info, "%s", buf);
624:
625: //
626: int content_length=strlen(buf);
627:
628: // prepare header
1.255 misha 629: // capitalized headers are used for preventing malloc during capitalization
630: SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_TYPE_CAPITALIZED, "text/plain");
631: // don't use 'format' function because it calls malloc
632: char content_length_cstr[MAX_NUMBER];
633: snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length);
634: SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_LENGTH_CAPITALIZED, content_length_cstr);
1.218 paf 635:
636: // send header
637: SAPI::send_header(SAPI_info);
638:
639: // send body
640: if(!header_only)
641: SAPI::send_body(SAPI_info, buf, content_length);
1.43 paf 642:
1.218 paf 643: // unsuccessful finish
1.16 paf 644: }
1.109 parser 645:
1.233 paf 646: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
647: log("main: successful return");
648: #endif
1.274 moko 649: return SAPI_info.http_response_code < 100 ? SAPI_info.http_response_code : 0;
1.1 paf 650: }
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