Annotation of parser3/src/targets/cgi/parser3.C, revision 1.285
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:
1.285 ! moko 8: volatile const char * IDENT_PARSER3_C="$Id: parser3.C,v 1.284 2019/12/27 16:34:08 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
1.282 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* argv0;
44: static const char* config_filespec_cstr=0;
1.193 paf 45: static bool fail_on_config_read_problem=true;
1.192 paf 46:
1.245 misha 47: static int args_skip=1;
48: static char** argv_all = NULL;
49:
1.184 paf 50: static bool cgi; ///< we were started as CGI?
51: static bool mail_received=false; ///< we were started with -m option? [asked to parse incoming message to $mail:received]
1.5 paf 52:
1.201 paf 53: // for signal handlers
54: Request *request=0;
1.218 paf 55: Request_info *request_info=0;
56: bool execution_canceled=false;
1.201 paf 57:
1.46 paf 58: // SAPI
1.86 parser 59:
1.275 moko 60: class SAPI_Info {
61: public:
1.274 moko 62: int http_response_code;
63: } SAPI_info = { 0 };
1.218 paf 64:
65: static void log(const char* fmt, va_list args) {
1.193 paf 66: bool opened=false;
1.61 paf 67: FILE *f=0;
68:
1.226 paf 69: const char* log_by_env=getenv(PARSER_LOG_ENV_NAME);
70: if(!log_by_env)
71: log_by_env=getenv(REDIRECT_PREFIX PARSER_LOG_ENV_NAME);
72: if(log_by_env) {
73: f=fopen(log_by_env, "at");
74: opened=f!=0;
75: }
1.272 moko 76: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.233 paf 77: f=fopen(PA_DEBUG_CGI_ENTRY_EXIT, "at");
78: opened=f!=0;
79: #endif
1.226 paf 80:
81: if(!opened && config_filespec_cstr) {
1.193 paf 82: char beside_config_path[MAX_STRING];
83: strncpy(beside_config_path, config_filespec_cstr, MAX_STRING-1); beside_config_path[MAX_STRING-1]=0;
1.272 moko 84: if(!(rsplit(beside_config_path, '/') || rsplit(beside_config_path, '\\'))) { // strip filename
1.193 paf 85: // no path, just filename
86: beside_config_path[0]='.'; beside_config_path[1]=0;
87: }
88:
89: char file_spec[MAX_STRING];
1.272 moko 90: snprintf(file_spec, MAX_STRING, "%s/parser3.log", beside_config_path);
1.193 paf 91: f=fopen(file_spec, "at");
92: opened=f!=0;
93: }
1.192 paf 94: // fallback to stderr
1.61 paf 95: if(!opened)
96: f=stderr;
1.208 paf 97:
98: // use no memory [so that we could log out-of-memory error]
99: setbuf(f, 0); // stderr stream is unbuffered by default, but still...
1.61 paf 100:
101: // prefix
102: time_t t=time(0);
1.218 paf 103: if(const char* stamp=ctime(&t)) { // never saw that
1.173 paf 104: if(size_t len=strlen(stamp)) // saw once stamp being =""
1.272 moko 105: fprintf(f, "[%.*s] [%u] ", (int)len-1, stamp, (unsigned int)getpid() );
1.171 paf 106: }
1.61 paf 107: // message
1.117 parser 108:
1.246 misha 109: char buf[MAX_LOG_STRING];
110: size_t size=vsnprintf(buf, MAX_LOG_STRING, fmt, args);
111: size=remove_crlf(buf, buf+size);
1.239 paf 112: fwrite(buf, size, 1, f);
113:
114: if(request_info)
1.261 moko 115: fprintf(f, " [uri=%s, method=%s, cl=%lu]",
1.239 paf 116: request_info->uri? request_info->uri: "<unknown>",
117: request_info->method? request_info->method: "<unknown>",
118: request_info->content_length);
119: else
120: fputs(" [no request info]", f);
1.117 parser 121:
1.61 paf 122: // newline
1.239 paf 123: fputs("\n", f);
1.61 paf 124:
125: if(opened)
126: fclose(f);
1.85 parser 127: else
128: fflush(f);
1.124 parser 129: }
1.272 moko 130:
1.236 paf 131: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
1.233 paf 132: static void log(const char* fmt, ...) {
1.272 moko 133: va_list args;
1.233 paf 134: va_start(args,fmt);
135: log(fmt, args);
136: va_end(args);
137: }
1.236 paf 138: #endif
1.124 parser 139:
140: // appends to parser3.log located beside my binary 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);
144: ::log(fmt, args);
145: va_end(args);
146: }
147:
1.218 paf 148: static void die_or_abort(const char* fmt, va_list args, bool write_core) {
1.138 paf 149: // inform user
150:
1.134 paf 151: char body[MAX_STRING];
1.138 paf 152: int content_length=vsnprintf(body, MAX_STRING, fmt, args);
1.134 paf 153:
154: // prepare header
155: // let's be honest, that's bad we couldn't produce valid output
1.255 misha 156: // capitalized headers passed for preventing malloc during capitalization
157: SAPI::add_header_attribute(SAPI_info, HTTP_STATUS_CAPITALIZED, "500");
158: SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_TYPE_CAPITALIZED, "text/plain");
159: // don't use 'format' function because it calls malloc
160: char content_length_cstr[MAX_NUMBER];
161: snprintf(content_length_cstr, sizeof(content_length_cstr), "%u", content_length);
162: SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_LENGTH_CAPITALIZED, content_length_cstr);
1.134 paf 163:
164: // send header
1.218 paf 165: SAPI::send_header(SAPI_info);
1.134 paf 166:
167: // body
1.218 paf 168: SAPI::send_body(SAPI_info, body, content_length);
1.134 paf 169:
1.218 paf 170: // exit & try to produce core dump[unix] or invoke debugger[Win32 Debug version]
171: if(write_core) {
1.264 moko 172: #ifdef WIN32
1.218 paf 173: // IIS with abort failes to show STDOUT, it just barks "abnormal program termination"
174: exit(1);
1.214 paf 175: #else
1.218 paf 176: abort();
1.214 paf 177: #endif
1.272 moko 178: } else
1.218 paf 179: exit(1);
180: }
181:
182: void SAPI::die(const char* fmt, ...) {
1.258 moko 183: va_list args;
184:
185: // logging first, can't log inside die_or_abort due to vsnprintf (bug #106)
186: va_start(args,fmt);
187: ::log(fmt, args);
188: va_end(args);
189:
1.218 paf 190: va_start(args, fmt);
1.258 moko 191: die_or_abort(fmt, args, false /*write core?*/);
192: // va_end(args);
1.61 paf 193: }
194:
1.218 paf 195: void SAPI::abort(const char* fmt, ...) {
1.258 moko 196: va_list args;
197:
198: // logging first, can't log inside die_or_abort due to vsnprintf (bug #106)
199: va_start(args,fmt);
200: ::log(fmt, args);
201: va_end(args);
202:
1.218 paf 203: va_start(args, fmt);
1.258 moko 204: die_or_abort(fmt, args, true /*write core?*/);
205: // va_end(args);
1.28 paf 206: }
207:
1.267 moko 208: char* SAPI::Env::get(SAPI_Info& , const char* name) {
1.218 paf 209: if(char *local=getenv(name))
210: return pa_strdup(local);
211: else
212: return 0;
213: }
214:
1.267 moko 215: const char* const *SAPI::Env::get(SAPI_Info&) {
1.180 paf 216: #ifdef _MSC_VER
217: extern char **_environ;
218: return _environ;
219: #else
220: extern char **environ;
221: return environ;
222: #endif
223: }
224:
1.218 paf 225: size_t SAPI::read_post(SAPI_Info& , char *buf, size_t max_bytes) {
1.59 paf 226: size_t read_size=0;
1.12 paf 227: do {
1.272 moko 228: ssize_t chunk_size=read(fileno(stdin), buf+read_size, min(READ_POST_CHUNK_SIZE, max_bytes-read_size));
1.129 paf 229: if(chunk_size<=0)
1.12 paf 230: break;
231: read_size+=chunk_size;
232: } while(read_size<max_bytes);
233:
234: return read_size;
1.10 paf 235: }
236:
1.218 paf 237: void SAPI::add_header_attribute(SAPI_Info& , const char* dont_store_key, const char* dont_store_value) {
1.274 moko 238: if(strcasecmp(dont_store_key, HTTP_STATUS)==0)
239: SAPI_info.http_response_code=atoi(dont_store_value);
1.242 misha 240: if( cgi && (!request || !request->console.was_used()) )
1.254 misha 241: printf("%s: %s\n", capitalize(dont_store_key), dont_store_value);
1.19 paf 242: }
243:
1.218 paf 244: void SAPI::send_header(SAPI_Info& ) {
1.33 paf 245: if(cgi) {
1.20 paf 246: puts("");
1.33 paf 247: }
1.30 paf 248: }
1.20 paf 249:
1.229 paf 250: size_t SAPI::send_body(SAPI_Info& , const void *buf, size_t size) {
251: return stdout_write(buf, size);
1.58 paf 252: }
253:
1.218 paf 254: static void full_file_spec(const char* file_name, char *buf, size_t buf_size) {
1.210 paf 255: if(file_name)
1.167 paf 256: if(file_name[0]=='/'
257: #ifdef WIN32
1.210 paf 258: || file_name[0] && file_name[1]==':'
1.167 paf 259: #endif
1.279 moko 260: ){
261: strncpy(buf, file_name, buf_size-1); buf[buf_size-1]=0;
262: } else {
1.261 moko 263: char cwd[MAX_STRING];
264: snprintf(buf, buf_size, "%s/%s", getcwd(cwd, MAX_STRING) ? cwd : "", file_name);
1.167 paf 265: }
266: else
267: buf[0]=0;
1.166 paf 268: #ifdef WIN32
269: back_slashes_to_slashes(buf);
270: #endif
1.97 parser 271: }
272:
1.218 paf 273: static void log_signal(const char* signal_name) {
274: if(request_info)
1.219 paf 275: SAPI::log(SAPI_info, "%s received while %s. uri=%s, method=%s, cl=%u",
1.218 paf 276: signal_name,
1.272 moko 277: request ? "executing code" : "reading data",
1.218 paf 278: request_info->uri,
279: request_info->method,
280: request_info->content_length);
281: else
282: SAPI::log(SAPI_info, "%s received before or after processing request",
283: signal_name);
1.205 paf 284: }
285:
1.201 paf 286: #ifdef SIGUSR1
1.205 paf 287: static void SIGUSR1_handler(int /*sig*/){
288: log_signal("SIGUSR1");
1.201 paf 289: }
290: #endif
291:
292: #ifdef SIGPIPE
1.243 misha 293: #define SIGPIPE_NAME "SIGPIPE"
294: static const String sigpipe_name(SIGPIPE_NAME);
1.205 paf 295: static void SIGPIPE_handler(int /*sig*/){
1.243 misha 296: Value* sigpipe=0;
297: if(request)
1.251 misha 298: sigpipe=request->main_class.get_element(sigpipe_name);
1.243 misha 299: if(sigpipe && sigpipe->as_bool())
1.244 misha 300: log_signal(SIGPIPE_NAME);
1.243 misha 301:
1.218 paf 302: execution_canceled=true;
1.201 paf 303: if(request)
1.276 moko 304: request->set_skip(Request::SKIP_INTERRUPTED);
1.201 paf 305: }
306: #endif
307:
1.227 paf 308: #ifdef WIN32
309: const char* maybe_reconstruct_IIS_status_in_qs(const char* original)
310: {
1.228 paf 311: // 404;http://servername/page[?param=value...]
1.227 paf 312: // ';' should be urlencoded by HTTP standard, so we shouldn't get it from browser
313: // and can consider that as an indication that this is IIS way to report errors
314:
1.272 moko 315: if(original && isdigit((unsigned char)original[0]) && isdigit((unsigned char)original[1]) && isdigit((unsigned char)original[2]) && original[3]==';'){
1.227 paf 316: size_t original_len=strlen(original);
1.272 moko 317: char* reconstructed=new(PointerFreeGC) char[original_len +12/*IIS-STATUS=&*/ +14/*IIS-DOCUMENT=&*/ +1];
1.227 paf 318: char* cur=reconstructed;
319: memcpy(cur, "IIS-STATUS=", 11); cur+=11;
320: memcpy(cur, original, 3); cur+=3;
321: *cur++='&';
322:
1.228 paf 323: const char* qmark_at=strchr(original, '?');
1.227 paf 324: memcpy(cur, "IIS-DOCUMENT=", 13); cur+=13;
325: {
1.272 moko 326: size_t value_len=(qmark_at ? qmark_at-original : original_len)-4;
1.227 paf 327: memcpy(cur, original+4, value_len); cur+=value_len;
328: }
329:
330: if(qmark_at) {
331: *cur++='&';
332: strcpy(cur, qmark_at+1/*skip ? itself*/);
333: } else
334: *cur=0;
335:
336: return reconstructed;
337: }
338:
339: return original;
340: }
1.283 moko 341:
342: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) maybe_reconstruct_IIS_status_in_qs(s)
343: #else
344: #define MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(s) s
1.227 paf 345: #endif
346:
1.256 misha 347:
348: class RequestController {
349: public:
350: RequestController(Request* r){
351: ::request=r;
352: }
353: ~RequestController(){
354: ::request=0;
355: }
356: };
357:
358:
1.40 paf 359: /**
1.122 parser 360: main workhorse
1.19 paf 361:
1.272 moko 362: @todo
363: IIS: remove trailing default-document[index.html] from $request.uri.
364: to do that we need to consult metabase,
365: wich is tested but seems slow.
1.40 paf 366: */
1.272 moko 367: static void real_parser_handler(const char* filespec_to_process, const char* request_method, bool header_only) {
1.231 paf 368:
1.280 moko 369: // init libraries
1.218 paf 370: pa_globals_init();
1.122 parser 371:
1.186 paf 372: if(!filespec_to_process || !*filespec_to_process)
1.282 moko 373: SAPI::die("Parser/%s", PARSER_VERSION);
1.122 parser 374:
375: // Request info
1.285 ! moko 376: Request_info request_info; memset(&request_info, 0, sizeof(request_info));
1.166 paf 377: char document_root_buf[MAX_STRING];
1.283 moko 378:
379: request_info.path_translated = filespec_to_process;
380: request_info.method = request_method ? request_method : "GET";
381: request_info.query_string = MAYBE_RECONSTRUCT_IIS_STATUS_IN_QS(getenv("QUERY_STRING"));
382:
1.122 parser 383: if(cgi) {
1.284 moko 384: // obligatory
1.218 paf 385: const char* path_info=getenv("PATH_INFO");
1.214 paf 386: if(!path_info)
387: SAPI::die("CGI: illegal call (missing PATH_INFO)");
1.283 moko 388:
389: request_info.document_root = getenv("DOCUMENT_ROOT");
390: if(!request_info.document_root) {
1.285 ! moko 391: // IIS or fcgiwrap minimalistic setup
! 392: ssize_t prefix_len = strlen(filespec_to_process) - strlen(path_info);
! 393: if(prefix_len < 0 || strcmp(filespec_to_process + prefix_len, path_info) != 0)
! 394: SAPI::die("CGI: illegal call (invalid PATH_INFO in reinventing DOCUMENT_ROOT)");
! 395:
! 396: char* document_root = new(PointerFreeGC) char[prefix_len + 1/*0*/];
! 397: memcpy(document_root, filespec_to_process, prefix_len); document_root[prefix_len] = 0;
! 398: request_info.document_root = document_root;
1.283 moko 399: }
1.214 paf 400:
1.285 ! moko 401: request_info.uri = request_info.strip_absolute_uri(getenv("REQUEST_URI"));
1.283 moko 402: if(request_info.uri) { // apache & others stuck to standards
1.284 moko 403: // another obligatory
1.285 ! moko 404: const char* script_name = getenv("SCRIPT_NAME");
1.284 moko 405: if(!script_name)
406: SAPI::die("CGI: illegal call (missing SCRIPT_NAME)");
1.214 paf 407: /*
408: http://parser3/env.html?123 =OK
409: $request:uri=/env.html?123
410: REQUEST_URI='/env.html?123'
411: SCRIPT_NAME='/cgi-bin/parser3'
412: PATH_INFO='/env.html'
1.285 ! moko 413:
1.214 paf 414: http://parser3/cgi-bin/parser3/env.html?123 =ERROR
415: $request:uri=/cgi-bin/parser3/env.html?123
416: REQUEST_URI='/cgi-bin/parser3/env.html?123'
417: SCRIPT_NAME='/cgi-bin/parser3'
418: PATH_INFO='/env.html'
419: */
1.285 ! moko 420: size_t script_name_len = strlen(script_name);
! 421: size_t uri_len = strlen(request_info.uri);
1.283 moko 422: 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 423: SAPI::die("CGI: illegal call (1)");
1.284 moko 424: } else { // fcgiwrap minimalistic setup
1.283 moko 425:
426: if(request_info.query_string) {
1.285 ! moko 427: char* reconstructed_uri = new(PointerFreeGC) char[strlen(path_info) + 1/*'?'*/+ strlen(request_info.query_string) + 1/*0*/];
1.283 moko 428: strcpy(reconstructed_uri, path_info);
429: strcat(reconstructed_uri, "?");
430: strcat(reconstructed_uri, request_info.query_string);
1.285 ! moko 431: request_info.uri = reconstructed_uri;
1.283 moko 432: } else
1.285 ! moko 433: request_info.uri = path_info;
1.214 paf 434: }
1.283 moko 435: } else{
436: full_file_spec("", document_root_buf, sizeof(document_root_buf));
1.285 ! moko 437: request_info.document_root = document_root_buf;
! 438: request_info.uri = "";
1.283 moko 439: }
1.122 parser 440:
1.283 moko 441: request_info.content_type = getenv("CONTENT_TYPE");
442: const char* content_length = getenv("CONTENT_LENGTH");
443: request_info.content_length = content_length ? atoi(content_length) : 0;
444: request_info.cookie = getenv("HTTP_COOKIE");
445: request_info.mail_received = mail_received;
1.184 paf 446:
1.283 moko 447: request_info.argv = argv_all;
448: request_info.args_skip = args_skip;
1.245 misha 449:
1.218 paf 450: // get request_info ptr for signal handlers
1.283 moko 451: ::request_info = &request_info;
1.218 paf 452: if(execution_canceled)
453: SAPI::die("Execution canceled");
1.198 paf 454:
1.233 paf 455: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
456: log("request_info: method=%s, uri=%s, q=%s, dr=%s, pt=%s, cookies=%s, cl=%u",
457: request_info.method,
458: request_info.uri,
459: request_info.query_string,
460: request_info.document_root,
461: request_info.path_translated,
462: request_info.cookie,
463: request_info.content_length);
464: #endif
465:
1.122 parser 466: // prepare to process request
1.272 moko 467: Request request(SAPI_info, request_info, cgi ? String::Language(String::L_HTML|String::L_OPTIMIZE_BIT) : String::L_AS_IS);
1.201 paf 468:
1.256 misha 469: {
470: // get ::request ptr for signal handlers
471: RequestController rc(&request);
1.201 paf 472:
1.256 misha 473: char config_filespec_buf[MAX_STRING];
474: if(!config_filespec_cstr) {
475: const char* config_by_env=getenv(PARSER_CONFIG_ENV_NAME);
476: if(!config_by_env)
477: config_by_env=getenv(REDIRECT_PREFIX PARSER_CONFIG_ENV_NAME);
478: if(config_by_env)
479: config_filespec_cstr=config_by_env;
480: else {
481: // beside by binary
482: char beside_binary_path[MAX_STRING];
483: strncpy(beside_binary_path, argv0, MAX_STRING-1); beside_binary_path[MAX_STRING-1]=0; // filespec of my binary
1.272 moko 484: if(!(rsplit(beside_binary_path, '/') || rsplit(beside_binary_path, '\\'))) { // strip filename
1.256 misha 485: // no path, just filename
486: // @todo full path, not ./!
487: beside_binary_path[0]='.'; beside_binary_path[1]=0;
488: }
1.272 moko 489: snprintf(config_filespec_buf, MAX_STRING, "%s/%s", beside_binary_path, AUTO_FILE_NAME);
1.256 misha 490: config_filespec_cstr=config_filespec_buf;
491: fail_on_config_read_problem=entry_exists(config_filespec_cstr);
1.193 paf 492: }
493: }
1.256 misha 494:
495: // process the request
1.272 moko 496: request.core(config_filespec_cstr, fail_on_config_read_problem, header_only);
1.256 misha 497:
498: // ::request cleared in RequestController desctructor to prevent signal handlers from accessing invalid memory
1.122 parser 499: }
1.231 paf 500:
1.280 moko 501: // finalize libraries
1.225 paf 502: pa_globals_done();
1.218 paf 503: }
504:
1.231 paf 505: #ifdef PA_SUPPRESS_SYSTEM_EXCEPTION
1.272 moko 506: 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 507: try {
1.272 moko 508: real_parser_handler(filespec_to_process, request_method, header_only);
1.231 paf 509: } catch(const Exception& e) {
510: return e;
1.122 parser 511: }
1.231 paf 512:
513: return Exception();
1.122 parser 514: }
1.272 moko 515:
516: static void call_real_parser_handler__supress_system_exception(const char* filespec_to_process, const char* request_method, bool header_only){
1.231 paf 517: Exception parser_exception;
518: LPEXCEPTION_POINTERS system_exception=0;
1.122 parser 519:
1.231 paf 520: __try {
1.272 moko 521: parser_exception=call_real_parser_handler__do_PEH_return_it(filespec_to_process, request_method, header_only);
1.231 paf 522: } __except (
523: (system_exception=GetExceptionInformation()),
524: EXCEPTION_EXECUTE_HANDLER)
525: {
1.131 paf 526:
1.231 paf 527: if(system_exception)
528: if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
1.272 moko 529: throw Exception("system", 0, "0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress);
1.218 paf 530: else
1.272 moko 531: throw Exception("system", 0, "<no exception record>");
1.218 paf 532: else
1.272 moko 533: throw Exception("system", 0, "<no exception information>");
1.231 paf 534: }
535:
536: if(parser_exception)
537: throw Exception(parser_exception);
538: }
1.273 moko 539:
540: #define REAL_PARSER_HANDLER call_real_parser_handler__supress_system_exception
541: #else
542: #define REAL_PARSER_HANDLER real_parser_handler
1.218 paf 543: #endif
1.131 paf 544:
1.218 paf 545: static void usage(const char* program) {
1.188 paf 546: printf(
1.235 paf 547: "Parser/%s\n"
1.277 moko 548: "Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com)\n"
1.184 paf 549: "Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)\n"
550: "\n"
551: "Usage: %s [options] file\n"
552: "Options are:\n"
1.185 paf 553: #ifdef WITH_MAILRECEIVE
1.193 paf 554: " -m Parse mail, put received letter to $mail:received\n"
1.184 paf 555: #endif
1.193 paf 556: " -f config_file Use this config file (/path/to/auto.p)\n"
1.272 moko 557: " -h Display usage information (this message)\n",
558: PARSER_VERSION,
1.184 paf 559: program);
560: exit(EINVAL);
561: }
562:
1.249 misha 563: int main(int argc, char *argv[]) {
1.233 paf 564: #ifdef PA_DEBUG_CGI_ENTRY_EXIT
565: log("main: entry");
566: #endif
1.217 paf 567:
1.203 paf 568: #ifdef SIGUSR1
1.205 paf 569: if(signal(SIGUSR1, SIGUSR1_handler)==SIG_ERR)
1.203 paf 570: SAPI::die("Can not set handler for SIGUSR1");
571: #endif
572: #ifdef SIGPIPE
1.205 paf 573: if(signal(SIGPIPE, SIGPIPE_handler)==SIG_ERR)
1.203 paf 574: SAPI::die("Can not set handler for SIGPIPE");
575: #endif
576:
1.245 misha 577: argv_all=argv;
1.193 paf 578: argv0=argv[0];
1.45 paf 579:
1.32 paf 580: umask(2);
581:
1.3 paf 582: // were we started as CGI?
1.272 moko 583: cgi=(getenv("SERVER_SOFTWARE") || getenv("SERVER_NAME") || getenv("GATEWAY_INTERFACE") || getenv("REQUEST_METHOD")) && !getenv("PARSER_VERSION");
584:
1.184 paf 585: char *raw_filespec_to_process;
1.210 paf 586: if(cgi) {
1.184 paf 587: raw_filespec_to_process=getenv("PATH_TRANSLATED");
1.210 paf 588: if(raw_filespec_to_process && !*raw_filespec_to_process)
589: raw_filespec_to_process=0;
590: } else {
1.250 misha 591: int optind=1;
1.245 misha 592: while(optind < argc){
593: char *carg = argv[optind];
594: if(carg[0] != '-')
1.184 paf 595: break;
1.245 misha 596:
597: for(size_t k = 1; k < strlen(carg); k++){
598: char c = carg[k];
599: switch (c) {
600: case 'h':
601: usage(argv[0]);
602: break;
603: case 'f':
604: if(optind < argc - 1){
605: optind++;
606: config_filespec_cstr=argv[optind];
607: }
608: break;
1.185 paf 609: #ifdef WITH_MAILRECEIVE
1.245 misha 610: case 'm':
611: mail_received=true;
612: break;
613: #endif
614: default:
615: fprintf(stderr, "%s: invalid option '%c'\n", argv[0], c);
616: usage(argv[0]);
617: break;
618: }
1.184 paf 619: }
1.245 misha 620: optind++;
1.184 paf 621: }
1.245 misha 622:
623: if (optind > argc - 1) {
1.184 paf 624: fprintf(stderr, "%s: file not specified\n", argv[0]);
625: usage(argv[0]);
1.10 paf 626: }
1.245 misha 627: raw_filespec_to_process=argv[optind];
628: args_skip=optind;
1.10 paf 629: }
630:
1.264 moko 631: #ifdef _MSC_VER
1.100 parser 632: setmode(fileno(stdin), _O_BINARY);
633: setmode(fileno(stdout), _O_BINARY);
634: setmode(fileno(stderr), _O_BINARY);
635: #endif
636:
1.218 paf 637: #if defined(_MSC_VER) && defined(_DEBUG)
1.148 paf 638: // Get current flag
639: int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG );
640:
641: // Turn on leak-checking bit
642: tmpFlag |= _CRTDBG_LEAK_CHECK_DF;
643:
644: // Set flag to the new value
645: _CrtSetDbgFlag( tmpFlag );
1.138 paf 646:
1.218 paf 647: _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE );
648: _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDERR );
1.138 paf 649: #endif
650:
1.166 paf 651: char filespec_to_process[MAX_STRING];
652: full_file_spec(raw_filespec_to_process, filespec_to_process, sizeof(filespec_to_process));
1.10 paf 653:
1.218 paf 654: const char* request_method=getenv("REQUEST_METHOD");
1.35 paf 655: bool header_only=request_method && strcasecmp(request_method, "HEAD")==0;
1.131 paf 656:
1.122 parser 657: try { // global try
1.273 moko 658: REAL_PARSER_HANDLER(filespec_to_process, request_method, header_only);
1.122 parser 659: } catch(const Exception& e) { // global problem
1.44 paf 660: // don't allocate anything on pool here:
661: // possible pool' exception not catch-ed now
662: // and there could be out-of-memory exception
1.218 paf 663: char buf[MAX_STRING];
1.272 moko 664: snprintf(buf, MAX_STRING, "Unhandled exception %s", e.comment());
1.218 paf 665: // log it
666: SAPI::log(SAPI_info, "%s", buf);
667:
668: //
669: int content_length=strlen(buf);
670:
671: // prepare header
1.255 misha 672: // capitalized headers are used for preventing malloc during capitalization
673: SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_TYPE_CAPITALIZED, "text/plain");
674: // don't use 'format' function because it calls malloc
675: char content_length_cstr[MAX_NUMBER];
676: snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length);
677: SAPI::add_header_attribute(SAPI_info, HTTP_CONTENT_LENGTH_CAPITALIZED, content_length_cstr);
1.218 paf 678:
679: // send header
680: SAPI::send_header(SAPI_info);
681:
682: // send body
683: if(!header_only)
684: SAPI::send_body(SAPI_info, buf, content_length);
1.43 paf 685:
1.218 paf 686: // unsuccessful finish
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
1.274 moko 692: return SAPI_info.http_response_code < 100 ? SAPI_info.http_response_code : 0;
1.1 paf 693: }
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