Annotation of parser3/src/targets/cgi/parser3.C, revision 1.290
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:
1.290 ! moko 8: volatile const char * IDENT_PARSER3_C="$Id: parser3.C,v 1.289 2020/08/13 10:55:00 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:
1.218 paf 146: static void die_or_abort(const char* fmt, va_list args, bool write_core) {
1.290 ! moko 147: }
! 148:
! 149: void SAPI::die(const char* fmt, ...) {
! 150: va_list args;
! 151:
! 152: // logging first, first vsnprintf
! 153: va_start(args,fmt);
! 154: ::log(fmt, args);
! 155: va_end(args);
1.138 paf 156:
1.290 ! moko 157: // inform user, second vsnprintf
! 158: va_start(args, fmt);
1.134 paf 159: char body[MAX_STRING];
1.138 paf 160: int content_length=vsnprintf(body, MAX_STRING, fmt, args);
1.134 paf 161:
162: // prepare header
163: // let's be honest, that's bad we couldn't produce valid output
1.255 misha 164: // capitalized headers passed for preventing malloc during capitalization
165: SAPI::add_header_attribute(SAPI_info, HTTP_STATUS_CAPITALIZED, "500");
166: SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_TYPE_CAPITALIZED, "text/plain");
167: // don't use 'format' function because it calls malloc
168: char content_length_cstr[MAX_NUMBER];
169: snprintf(content_length_cstr, sizeof(content_length_cstr), "%u", content_length);
170: SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_LENGTH_CAPITALIZED, content_length_cstr);
1.134 paf 171:
172: // send header
1.218 paf 173: SAPI::send_header(SAPI_info);
1.134 paf 174:
175: // body
1.218 paf 176: SAPI::send_body(SAPI_info, body, content_length);
1.134 paf 177:
1.290 ! moko 178: exit(1);
1.258 moko 179: // va_end(args);
1.28 paf 180: }
181:
1.267 moko 182: char* SAPI::Env::get(SAPI_Info& , const char* name) {
1.218 paf 183: if(char *local=getenv(name))
184: return pa_strdup(local);
185: else
186: return 0;
187: }
188:
1.267 moko 189: const char* const *SAPI::Env::get(SAPI_Info&) {
1.180 paf 190: #ifdef _MSC_VER
191: extern char **_environ;
192: return _environ;
193: #else
194: extern char **environ;
195: return environ;
196: #endif
197: }
198:
1.218 paf 199: size_t SAPI::read_post(SAPI_Info& , char *buf, size_t max_bytes) {
1.59 paf 200: size_t read_size=0;
1.12 paf 201: do {
1.272 moko 202: ssize_t chunk_size=read(fileno(stdin), buf+read_size, min(READ_POST_CHUNK_SIZE, max_bytes-read_size));
1.129 paf 203: if(chunk_size<=0)
1.12 paf 204: break;
205: read_size+=chunk_size;
206: } while(read_size<max_bytes);
207:
208: return read_size;
1.10 paf 209: }
210:
1.218 paf 211: void SAPI::add_header_attribute(SAPI_Info& , const char* dont_store_key, const char* dont_store_value) {
1.274 moko 212: if(strcasecmp(dont_store_key, HTTP_STATUS)==0)
213: SAPI_info.http_response_code=atoi(dont_store_value);
1.242 misha 214: if( cgi && (!request || !request->console.was_used()) )
1.254 misha 215: printf("%s: %s\n", capitalize(dont_store_key), dont_store_value);
1.19 paf 216: }
217:
1.218 paf 218: void SAPI::send_header(SAPI_Info& ) {
1.33 paf 219: if(cgi) {
1.20 paf 220: puts("");
1.33 paf 221: }
1.30 paf 222: }
1.20 paf 223:
1.229 paf 224: size_t SAPI::send_body(SAPI_Info& , const void *buf, size_t size) {
225: return stdout_write(buf, size);
1.58 paf 226: }
227:
1.218 paf 228: static void full_file_spec(const char* file_name, char *buf, size_t buf_size) {
1.210 paf 229: if(file_name)
1.167 paf 230: if(file_name[0]=='/'
231: #ifdef WIN32
1.210 paf 232: || file_name[0] && file_name[1]==':'
1.167 paf 233: #endif
1.279 moko 234: ){
235: strncpy(buf, file_name, buf_size-1); buf[buf_size-1]=0;
236: } else {
1.261 moko 237: char cwd[MAX_STRING];
238: snprintf(buf, buf_size, "%s/%s", getcwd(cwd, MAX_STRING) ? cwd : "", file_name);
1.167 paf 239: }
240: else
241: buf[0]=0;
1.166 paf 242: #ifdef WIN32
243: back_slashes_to_slashes(buf);
244: #endif
1.97 parser 245: }
246:
1.218 paf 247: static void log_signal(const char* signal_name) {
248: if(request_info)
1.287 moko 249: SAPI::log(SAPI_info, "%s received while %s.", signal_name, request ? "executing code" : "reading data");
1.218 paf 250: else
1.287 moko 251: SAPI::log(SAPI_info, "%s received before or after processing request", signal_name);
1.205 paf 252: }
253:
1.201 paf 254: #ifdef SIGUSR1
1.205 paf 255: static void SIGUSR1_handler(int /*sig*/){
256: log_signal("SIGUSR1");
1.201 paf 257: }
258: #endif
259:
260: #ifdef SIGPIPE
1.243 misha 261: #define SIGPIPE_NAME "SIGPIPE"
262: static const String sigpipe_name(SIGPIPE_NAME);
1.205 paf 263: static void SIGPIPE_handler(int /*sig*/){
1.243 misha 264: Value* sigpipe=0;
265: if(request)
1.251 misha 266: sigpipe=request->main_class.get_element(sigpipe_name);
1.243 misha 267: if(sigpipe && sigpipe->as_bool())
1.244 misha 268: log_signal(SIGPIPE_NAME);
1.243 misha 269:
1.218 paf 270: execution_canceled=true;
1.201 paf 271: if(request)
1.276 moko 272: request->set_skip(Request::SKIP_INTERRUPTED);
1.201 paf 273: }
274: #endif
275:
1.227 paf 276: #ifdef WIN32
277: const char* maybe_reconstruct_IIS_status_in_qs(const char* original)
278: {
1.228 paf 279: // 404;http://servername/page[?param=value...]
1.227 paf 280: // ';' should be urlencoded by HTTP standard, so we shouldn't get it from browser
281: // and can consider that as an indication that this is IIS way to report errors
282:
1.272 moko 283: if(original && isdigit((unsigned char)original[0]) && isdigit((unsigned char)original[1]) && isdigit((unsigned char)original[2]) && original[3]==';'){
1.227 paf 284: size_t original_len=strlen(original);
1.272 moko 285: char* reconstructed=new(PointerFreeGC) char[original_len +12/*IIS-STATUS=&*/ +14/*IIS-DOCUMENT=&*/ +1];
1.227 paf 286: char* cur=reconstructed;
287: memcpy(cur, "IIS-STATUS=", 11); cur+=11;
288: memcpy(cur, original, 3); cur+=3;
289: *cur++='&';
290:
1.228 paf 291: const char* qmark_at=strchr(original, '?');
1.227 paf 292: memcpy(cur, "IIS-DOCUMENT=", 13); cur+=13;
293: {
1.272 moko 294: size_t value_len=(qmark_at ? qmark_at-original : original_len)-4;
1.227 paf 295: memcpy(cur, original+4, value_len); cur+=value_len;
296: }
297:
298: if(qmark_at) {
299: *cur++='&';
300: strcpy(cur, qmark_at+1/*skip ? itself*/);
301: } else
302: *cur=0;
303:
304: return reconstructed;
305: }
306:
307: return original;
308: }
1.283 moko 309:
310: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) maybe_reconstruct_IIS_status_in_qs(s)
311: #else
312: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) s
1.227 paf 313: #endif
314:
1.256 misha 315:
316: class RequestController {
317: public:
318: RequestController(Request* r){
319: ::request=r;
320: }
321: ~RequestController(){
322: ::request=0;
323: }
324: };
325:
1.288 moko 326: static bool locate_config(){
327: if(!config_filespec_cstr) {
328: config_filespec_cstr=getenv(PARSER_CONFIG_ENV_NAME);
329: if(!config_filespec_cstr)
330: config_filespec_cstr=getenv(REDIRECT_PREFIX PARSER_CONFIG_ENV_NAME);
331: if(!config_filespec_cstr){
332: // beside by binary
333: char beside_binary_path[MAX_STRING];
334: strncpy(beside_binary_path, argv_all[0], MAX_STRING-1); beside_binary_path[MAX_STRING-1]=0; // filespec of my binary
335: if(!(rsplit(beside_binary_path, '/') || rsplit(beside_binary_path, '\\'))) { // strip filename
336: // no path, just filename
337: // @todo full path, not ./!
338: beside_binary_path[0]='.'; beside_binary_path[1]=0;
339: }
340: char config_filespec_buf[MAX_STRING];
341: snprintf(config_filespec_buf, MAX_STRING, "%s/%s", beside_binary_path, AUTO_FILE_NAME);
342: config_filespec_cstr=pa_strdup(config_filespec_buf);
343: return entry_exists(config_filespec_cstr);
344: }
345: }
346: return true;
347: }
1.256 misha 348:
1.40 paf 349: /**
1.122 parser 350: main workhorse
1.19 paf 351:
1.272 moko 352: @todo
353: IIS: remove trailing default-document[index.html] from $request.uri.
354: to do that we need to consult metabase,
355: wich is tested but seems slow.
1.40 paf 356: */
1.272 moko 357: static void real_parser_handler(const char* filespec_to_process, const char* request_method, bool header_only) {
1.231 paf 358:
1.280 moko 359: // init libraries
1.218 paf 360: pa_globals_init();
1.122 parser 361:
1.186 paf 362: if(!filespec_to_process || !*filespec_to_process)
1.282 moko 363: SAPI::die("Parser/%s", PARSER_VERSION);
1.122 parser 364:
365: // Request info
1.285 moko 366: Request_info request_info; memset(&request_info, 0, sizeof(request_info));
1.166 paf 367: char document_root_buf[MAX_STRING];
1.283 moko 368:
369: request_info.path_translated = filespec_to_process;
370: request_info.method = request_method ? request_method : "GET";
371: request_info.query_string = MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(getenv("QUERY_STRING"));
372:
1.122 parser 373: if(cgi) {
1.284 moko 374: // obligatory
1.218 paf 375: const char* path_info=getenv("PATH_INFO");
1.214 paf 376: if(!path_info)
377: SAPI::die("CGI: illegal call (missing PATH_INFO)");
1.283 moko 378:
379: request_info.document_root = getenv("DOCUMENT_ROOT");
380: if(!request_info.document_root) {
1.285 moko 381: // IIS or fcgiwrap minimalistic setup
382: ssize_t prefix_len = strlen(filespec_to_process) - strlen(path_info);
383: if(prefix_len < 0 || strcmp(filespec_to_process + prefix_len, path_info) != 0)
384: SAPI::die("CGI: illegal call (invalid PATH_INFO in reinventing DOCUMENT_ROOT)");
385:
386: char* document_root = new(PointerFreeGC) char[prefix_len + 1/*0*/];
387: memcpy(document_root, filespec_to_process, prefix_len); document_root[prefix_len] = 0;
388: request_info.document_root = document_root;
1.283 moko 389: }
1.214 paf 390:
1.285 moko 391: request_info.uri = request_info.strip_absolute_uri(getenv("REQUEST_URI"));
1.283 moko 392: if(request_info.uri) { // apache & others stuck to standards
1.284 moko 393: // another obligatory
1.285 moko 394: const char* script_name = getenv("SCRIPT_NAME");
1.284 moko 395: if(!script_name)
396: SAPI::die("CGI: illegal call (missing SCRIPT_NAME)");
1.214 paf 397: /*
398: http://parser3/env.html?123 =OK
399: $request:uri=/env.html?123
400: REQUEST_URI='/env.html?123'
401: SCRIPT_NAME='/cgi-bin/parser3'
402: PATH_INFO='/env.html'
1.285 moko 403:
1.214 paf 404: http://parser3/cgi-bin/parser3/env.html?123 =ERROR
405: $request:uri=/cgi-bin/parser3/env.html?123
406: REQUEST_URI='/cgi-bin/parser3/env.html?123'
407: SCRIPT_NAME='/cgi-bin/parser3'
408: PATH_INFO='/env.html'
409: */
1.285 moko 410: size_t script_name_len = strlen(script_name);
411: size_t uri_len = strlen(request_info.uri);
1.283 moko 412: 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 413: SAPI::die("CGI: illegal call (1)");
1.284 moko 414: } else { // fcgiwrap minimalistic setup
1.283 moko 415:
1.286 moko 416: if(request_info.query_string && *request_info.query_string) {
1.285 moko 417: char* reconstructed_uri = new(PointerFreeGC) char[strlen(path_info) + 1/*'?'*/+ strlen(request_info.query_string) + 1/*0*/];
1.283 moko 418: strcpy(reconstructed_uri, path_info);
419: strcat(reconstructed_uri, "?");
420: strcat(reconstructed_uri, request_info.query_string);
1.285 moko 421: request_info.uri = reconstructed_uri;
1.283 moko 422: } else
1.285 moko 423: request_info.uri = path_info;
1.214 paf 424: }
1.283 moko 425: } else{
426: full_file_spec("", document_root_buf, sizeof(document_root_buf));
1.285 moko 427: request_info.document_root = document_root_buf;
428: request_info.uri = "";
1.283 moko 429: }
1.122 parser 430:
1.283 moko 431: request_info.content_type = getenv("CONTENT_TYPE");
432: const char* content_length = getenv("CONTENT_LENGTH");
433: request_info.content_length = content_length ? atoi(content_length) : 0;
434: request_info.cookie = getenv("HTTP_COOKIE");
435: request_info.mail_received = mail_received;
1.184 paf 436:
1.283 moko 437: request_info.argv = argv_all;
438: request_info.args_skip = args_skip;
1.245 misha 439:
1.218 paf 440: // get request_info ptr for signal handlers
1.283 moko 441: ::request_info = &request_info;
1.218 paf 442: if(execution_canceled)
443: SAPI::die("Execution canceled");
1.198 paf 444:
1.233 paf 445: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
446: log("request_info: method=%s, uri=%s, q=%s, dr=%s, pt=%s, cookies=%s, cl=%u",
447: request_info.method,
448: request_info.uri,
449: request_info.query_string,
450: request_info.document_root,
451: request_info.path_translated,
452: request_info.cookie,
453: request_info.content_length);
454: #endif
455:
1.122 parser 456: // prepare to process request
1.272 moko 457: Request request(SAPI_info, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS);
1.256 misha 458: {
459: // get ::request ptr for signal handlers
460: RequestController rc(&request);
1.288 moko 461: bool fail_on_config_read_problem=locate_config();
1.256 misha 462: // process the request
1.272 moko 463: request.core(config_filespec_cstr, fail_on_config_read_problem, header_only);
1.256 misha 464: // ::request cleared in RequestController desctructor to prevent signal handlers from accessing invalid memory
1.122 parser 465: }
1.231 paf 466:
1.280 moko 467: // finalize libraries
1.225 paf 468: pa_globals_done();
1.218 paf 469: }
470:
1.231 paf 471: #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION
1.289 moko 472: 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 473: try {
1.272 moko 474: real_parser_handler(filespec_to_process, request_method, header_only);
1.231 paf 475: } catch(const Exception& e) {
476: return e;
1.122 parser 477: }
1.231 paf 478:
479: return Exception();
1.122 parser 480: }
1.272 moko 481:
1.289 moko 482: static void call_real_parser_handler__supress_system_exception(const char* filespec_to_process, const char* request_method, bool header_only) {
1.231 paf 483: Exception parser_exception;
484: LPEXCEPTION_POINTERS system_exception=0;
1.122 parser 485:
1.231 paf 486: __try {
1.272 moko 487: parser_exception=call_real_parser_handler__do_PEH_return_it(filespec_to_process, request_method, header_only);
1.288 moko 488: } __except ( (system_exception=GetExceptionInformation()), EXCEPTION_EXECUTE_HANDLER) {
1.231 paf 489: if(system_exception)
490: if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
1.272 moko 491: throw Exception("system", 0, "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress);
1.218 paf 492: else
1.272 moko 493: throw Exception("system", 0, "<no exception record>");
1.218 paf 494: else
1.272 moko 495: throw Exception("system", 0, "<no exception information>");
1.231 paf 496: }
497:
498: if(parser_exception)
499: throw Exception(parser_exception);
500: }
1.273 moko 501:
502: #define REAL_PARSER_HANDLER call_real_parser_handler__supress_system_exception
503: #else
504: #define REAL_PARSER_HANDLER real_parser_handler
1.218 paf 505: #endif
1.131 paf 506:
1.218 paf 507: static void usage(const char* program) {
1.188 paf 508: printf(
1.235 paf 509: "Parser/%s\n"
1.277 moko 510: "Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com)\n"
1.184 paf 511: "Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)\n"
512: "\n"
513: "Usage: %s [options] file\n"
514: "Options are:\n"
1.185 paf 515: #ifdef WITH_MAILRECEIVE
1.193 paf 516: " -m Parse mail, put received letter to $mail:received\n"
1.184 paf 517: #endif
1.193 paf 518: " -f config_file Use this config file (/path/to/auto.p)\n"
1.272 moko 519: " -h Display usage information (this message)\n",
520: PARSER_VERSION,
1.184 paf 521: program);
522: exit(EINVAL);
523: }
524:
1.249 misha 525: int main(int argc, char *argv[]) {
1.233 paf 526: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
527: log("main: entry");
528: #endif
1.217 paf 529:
1.203 paf 530: #ifdef SIGUSR1
1.205 paf 531: if(signal(SIGUSR1, SIGUSR1_handler)==SIG_ERR)
1.203 paf 532: SAPI::die("Can not set handler for SIGUSR1");
533: #endif
534: #ifdef SIGPIPE
1.205 paf 535: if(signal(SIGPIPE, SIGPIPE_handler)==SIG_ERR)
1.203 paf 536: SAPI::die("Can not set handler for SIGPIPE");
537: #endif
538:
1.245 misha 539: argv_all=argv;
1.32 paf 540: umask(2);
541:
1.3 paf 542: // were we started as CGI?
1.272 moko 543: cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION");
544:
1.184 paf 545: char *raw_filespec_to_process;
1.210 paf 546: if(cgi) {
1.184 paf 547: raw_filespec_to_process=getenv("PATH_TRANSLATED");
1.210 paf 548: if(raw_filespec_to_process && !*raw_filespec_to_process)
549: raw_filespec_to_process=0;
550: } else {
1.250 misha 551: int optind=1;
1.245 misha 552: while(optind < argc){
553: char *carg = argv[optind];
554: if(carg[0] != '-')
1.184 paf 555: break;
1.245 misha 556:
557: for(size_t k = 1; k < strlen(carg); k++){
558: char c = carg[k];
559: switch (c) {
560: case 'h':
561: usage(argv[0]);
562: break;
563: case 'f':
564: if(optind < argc - 1){
565: optind++;
566: config_filespec_cstr=argv[optind];
567: }
568: break;
1.185 paf 569: #ifdef WITH_MAILRECEIVE
1.245 misha 570: case 'm':
571: mail_received=true;
572: break;
573: #endif
574: default:
575: fprintf(stderr, "%s: invalid option '%c'\n", argv[0], c);
576: usage(argv[0]);
577: break;
578: }
1.184 paf 579: }
1.245 misha 580: optind++;
1.184 paf 581: }
1.245 misha 582:
583: if (optind > argc - 1) {
1.184 paf 584: fprintf(stderr, "%s: file not specified\n", argv[0]);
585: usage(argv[0]);
1.10 paf 586: }
1.245 misha 587: raw_filespec_to_process=argv[optind];
588: args_skip=optind;
1.10 paf 589: }
590:
1.264 moko 591: #ifdef _MSC_VER
1.100 parser 592: setmode(fileno(stdin), _O_BINARY);
593: setmode(fileno(stdout), _O_BINARY);
594: setmode(fileno(stderr), _O_BINARY);
595: #endif
596:
1.218 paf 597: #if defined(_MSC_VER) && defined(_DEBUG)
1.148 paf 598: // Get current flag
599: int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG );
600:
601: // Turn on leak-checking bit
602: tmpFlag |= _CRTDBG_LEAK_CHECK_DF;
603:
604: // Set flag to the new value
605: _CrtSetDbgFlag( tmpFlag );
1.138 paf 606:
1.218 paf 607: _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE );
608: _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR );
1.138 paf 609: #endif
610:
1.166 paf 611: char filespec_to_process[MAX_STRING];
612: full_file_spec(raw_filespec_to_process, filespec_to_process, sizeof(filespec_to_process));
1.10 paf 613:
1.218 paf 614: const char* request_method=getenv("REQUEST_METHOD");
1.35 paf 615: bool header_only=request_method && strcasecmp(request_method, "HEAD")==0;
1.131 paf 616:
1.122 parser 617: try { // global try
1.273 moko 618: REAL_PARSER_HANDLER(filespec_to_process, request_method, header_only);
1.122 parser 619: } catch(const Exception& e) { // global problem
1.44 paf 620: // don't allocate anything on pool here:
621: // possible pool' exception not catch-ed now
622: // and there could be out-of-memory exception
1.218 paf 623: char buf[MAX_STRING];
1.272 moko 624: snprintf(buf, MAX_STRING, "Unhandled exception %s", e.comment());
1.218 paf 625: // log it
626: SAPI::log(SAPI_info, "%s", buf);
627:
628: //
629: int content_length=strlen(buf);
630:
631: // prepare header
1.255 misha 632: // capitalized headers are used for preventing malloc during capitalization
633: SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_TYPE_CAPITALIZED, "text/plain");
634: // don't use 'format' function because it calls malloc
635: char content_length_cstr[MAX_NUMBER];
636: snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length);
637: SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_LENGTH_CAPITALIZED, content_length_cstr);
1.218 paf 638:
639: // send header
640: SAPI::send_header(SAPI_info);
641:
642: // send body
643: if(!header_only)
644: SAPI::send_body(SAPI_info, buf, content_length);
1.43 paf 645:
1.218 paf 646: // unsuccessful finish
1.16 paf 647: }
1.109 parser 648:
1.233 paf 649: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
650: log("main: successful return");
651: #endif
1.274 moko 652: return SAPI_info.http_response_code < 100 ? SAPI_info.http_response_code : 0;
1.1 paf 653: }
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