Annotation of parser3/src/targets/cgi/parser3.C, revision 1.149
1.27 paf 1: /** @file
2: Parser: scripting and CGI main.
3:
1.43 paf 4: Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com)
1.128 paf 5: Author: Alexander Petrosyan <paf@design.ru>(http://paf.design.ru)
1.27 paf 6:
1.149 ! paf 7: $Id: parser3.C,v 1.148 2001/12/13 13:02:43 paf Exp $
1.1 paf 8: */
9:
1.40 paf 10: #include "pa_config_includes.h"
1.3 paf 11:
1.139 paf 12: #if _MSC_VER
1.131 paf 13: # include <new.h>
1.148 paf 14: # include <crtdbg.h>
1.3 paf 15: #endif
1.27 paf 16:
1.37 paf 17: #include "pa_sapi.h"
1.76 paf 18: #include "classes.h"
1.24 paf 19: #include "pa_common.h"
1.2 paf 20: #include "pa_request.h"
1.57 paf 21: #include "pa_socks.h"
1.68 paf 22: #include "pa_version.h"
1.125 parser 23: #include "pool_storage.h"
1.69 paf 24:
1.149 ! paf 25: #ifdef WIN32
! 26: # include <windows.h>
1.120 parser 27: #endif
28:
1.127 paf 29: //#define DEBUG_POOL_MALLOC
1.84 parser 30:
1.109 parser 31: // consts
1.113 parser 32:
33: extern const char *main_RCSIds[];
1.116 parser 34: #ifdef USE_SMTP
1.113 parser 35: extern const char *smtp_RCSIds[];
1.114 parser 36: #endif
1.113 parser 37: extern const char *gd_RCSIds[];
38: extern const char *classes_RCSIds[];
39: extern const char *types_RCSIds[];
1.115 parser 40: extern const char *parser3_RCSIds[];
1.119 parser 41: #ifdef XML
42: extern const char *xalan_patched_RCSIds[];
43: #endif
1.113 parser 44: const char **RCSIds[]={
45: main_RCSIds,
1.116 parser 46: #ifdef USE_SMTP
1.113 parser 47: smtp_RCSIds,
1.114 parser 48: #endif
1.113 parser 49: gd_RCSIds,
50: classes_RCSIds,
51: types_RCSIds,
1.115 parser 52: parser3_RCSIds,
1.118 parser 53: #ifdef XML
54: xalan_patched_RCSIds,
55: #endif
1.113 parser 56: 0
57: };
1.84 parser 58:
1.42 paf 59: /// IIS refuses to read bigger chunks
60: const size_t READ_POST_CHUNK_SIZE=0x400*0x400; // 1M
61:
1.45 paf 62: const char *argv0;
1.125 parser 63: Pool_storage pool_storage;
64: Pool pool(&pool_storage); // global pool [dont describe to doxygen: it confuses it with param names]
1.27 paf 65: bool cgi; ///< we were started as CGI?
1.5 paf 66:
1.46 paf 67: // SAPI
1.86 parser 68:
1.124 parser 69: static void log(const char *fmt, va_list args) {
1.61 paf 70: bool opened;
71: FILE *f=0;
72:
73: if(argv0) {
74: // beside by binary
75: char file_spec[MAX_STRING];
1.98 parser 76: strncpy(file_spec, argv0, MAX_STRING-1); file_spec[MAX_STRING-1]=0; // filespec of my binary
1.61 paf 77: rsplit(file_spec, '/'); rsplit(file_spec, '\\');// strip filename
78: strcat(file_spec, "/parser3.log");
79: f=fopen(file_spec, "at");
80: }
81: opened=f!=0;
82: if(!opened)
83: f=stderr;
84:
85: // prefix
86: time_t t=time(0);
87: const char *stamp=ctime(&t);
88: fprintf(f, "[%.*s] ", strlen(stamp)-1, stamp);
89: // message
1.117 parser 90:
91: char buf[MAX_STRING];
92: size_t size=vsnprintf(buf, MAX_STRING, fmt, args);
93: remove_crlf(buf, buf+size);
94:
95: fwrite(buf, size, 1, f);
1.61 paf 96: // newline
97: fprintf(f, "\n");
98:
99: if(opened)
100: fclose(f);
1.85 parser 101: else
102: fflush(f);
1.124 parser 103: }
104:
105: // appends to parser3.log located beside my binary if openable, to stderr otherwize
106: void SAPI::log(Pool& , const char *fmt, ...) {
107: va_list args;
108: va_start(args,fmt);
109: ::log(fmt, args);
110: va_end(args);
111: }
112:
113: void SAPI::die(const char *fmt, ...) {
1.137 paf 114: #ifdef DEBUG_POOL_MALLOC
115: extern void log_pool_stats(Pool& pool);
116: log_pool_stats(pool);
117: #endif
118:
1.144 paf 119: va_list args;
120: va_start(args,fmt);
1.138 paf 121: // log
122:
123: // logging is more important than user
124: // she can cancel download, we'd get SIG_PIPE,
125: // nothing would be logged then
1.124 parser 126: ::log(fmt, args);
127:
1.138 paf 128: // inform user
129:
1.134 paf 130: char body[MAX_STRING];
1.138 paf 131: int content_length=vsnprintf(body, MAX_STRING, fmt, args);
1.134 paf 132:
1.144 paf 133: va_end(args);
134:
1.134 paf 135: // prepare header
136: // let's be honest, that's bad we couldn't produce valid output
137: SAPI::add_header_attribute(pool, "status", "500");
138: SAPI::add_header_attribute(pool, "content-type", "text/plain");
139: char content_length_cstr[MAX_NUMBER];
140: snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length);
141: SAPI::add_header_attribute(pool, "content-length", content_length_cstr);
142:
143: // send header
144: SAPI::send_header(pool);
145:
146: // body
147: SAPI::send_body(pool, body, content_length);
148:
1.124 parser 149: exit(1);
1.61 paf 150: }
151:
1.122 parser 152: const char *SAPI::get_env(Pool& , const char *name) {
1.109 parser 153: return getenv(name);
1.28 paf 154: }
155:
1.122 parser 156: size_t SAPI::read_post(Pool& , char *buf, size_t max_bytes) {
1.59 paf 157: size_t read_size=0;
1.12 paf 158: do {
1.36 paf 159: int chunk_size=read(fileno(stdin),
1.42 paf 160: buf+read_size, min(READ_POST_CHUNK_SIZE, max_bytes-read_size));
1.129 paf 161: if(chunk_size<=0)
1.12 paf 162: break;
163: read_size+=chunk_size;
164: } while(read_size<max_bytes);
165:
166: return read_size;
1.10 paf 167: }
168:
1.122 parser 169: void SAPI::add_header_attribute(Pool& , const char *key, const char *value) {
1.68 paf 170: if(cgi)
1.20 paf 171: printf("%s: %s\n", key, value);
1.19 paf 172: }
173:
1.56 paf 174: /// @todo intelligent cache-control
1.122 parser 175: void SAPI::send_header(Pool& ) {
1.33 paf 176: if(cgi) {
1.147 paf 177: // puts("expires: Fri, 23 Mar 2001 09:32:23 GMT");
1.33 paf 178:
179: // header | body delimiter
1.20 paf 180: puts("");
1.33 paf 181: }
1.30 paf 182: }
1.20 paf 183:
1.122 parser 184: void SAPI::send_body(Pool& , const void *buf, size_t size) {
1.19 paf 185: stdout_write(buf, size);
1.58 paf 186: }
187:
1.97 parser 188: //
189:
190: char *full_file_spec(char *file_name) {
1.108 parser 191: if(file_name && !strchr(file_name, '/')) {
1.97 parser 192: static char cwd[MAX_STRING]; getcwd(cwd, MAX_STRING);
193: static char buf[MAX_STRING];
194: snprintf(buf, MAX_STRING, "%s/%s", cwd, file_name);
195: return buf;
196: }
197: return file_name;
198: }
199:
1.40 paf 200: /**
1.122 parser 201: main workhorse
1.19 paf 202:
1.122 parser 203: @todo
1.40 paf 204: IIS: remove trailing default-document[index.html] from $request.uri.
205: to do that we need to consult metabase,
206: wich is tested but seems slow.
1.144 paf 207: IIS5 todo find out proper 'illegal call' check
1.40 paf 208: */
1.122 parser 209: void real_parser_handler(
210: const char *filespec_to_process,
211: const char *request_method, bool header_only) {
212: // init socks
213: init_socks(pool);
214:
215: // init global classes
216: init_methoded_array(pool);
217: // init global variables
218: pa_globals_init(pool);
219:
220: if(!filespec_to_process)
1.144 paf 221: SAPI::die("Parser/%s", PARSER_VERSION);
1.122 parser 222:
223: // Request info
224: Request::Info request_info;
225: if(cgi) {
226: if(const char *env_document_root=SAPI::get_env(pool, "DOCUMENT_ROOT"))
227: request_info.document_root=env_document_root;
228: else if(const char *path_info=SAPI::get_env(pool, "PATH_INFO")) {
229: // IIS
230: size_t len=strlen(filespec_to_process)-strlen(path_info);
231: char *buf=(char *)pool.malloc(len+1);
232: memcpy(buf, filespec_to_process, len); buf[len]=0;
233: request_info.document_root=buf;
234: } else
235: throw Exception(0, 0,
236: 0,
237: "CGI: no PATH_INFO defined(in reinventing DOCUMENT_ROOT)");
238: } else {
239: static char buf[MAX_STRING];
240: strncpy(buf, filespec_to_process, MAX_STRING-1); buf[MAX_STRING-1]=0;
241: if(rsplit(buf, '/') || rsplit(buf, '\\')) // strip filename
242: request_info.document_root=buf;
243: else
244: request_info.document_root="";
245: }
246: request_info.path_translated=filespec_to_process;
247: request_info.method=request_method ? request_method : "GET";
248: const char *query_string=SAPI::get_env(pool, "QUERY_STRING");
249: request_info.query_string=query_string;
250: if(cgi) {
251: if(const char *env_request_uri=SAPI::get_env(pool, "REQUEST_URI"))
252: request_info.uri=env_request_uri;
253: else if(const char *path_info=SAPI::get_env(pool, "PATH_INFO"))
254: if(query_string) {
255: char *reconstructed_uri=(char *)pool.malloc(
256: strlen(path_info)+1/*'?'*/+
257: strlen(query_string)+1/*0*/);
258: strcpy(reconstructed_uri, path_info);
259: strcat(reconstructed_uri, "?");
260: strcat(reconstructed_uri, query_string);
261: request_info.uri=reconstructed_uri;
262: } else
263: request_info.uri=path_info;
264: else
265: throw Exception(0, 0,
266: 0,
267: "CGI: no PATH_INFO defined(in reinventing REQUEST_URI)");
1.145 paf 268:
269: #ifndef WIN32
270: // they've changed this under IIS5.
1.122 parser 271: if(const char *script_name=SAPI::get_env(pool, "SCRIPT_NAME")) {
272: size_t script_name_len=strlen(script_name);
273: size_t uri_len=strlen(request_info.uri);
274: if(strncmp(request_info.uri,script_name, script_name_len)==0 &&
275: script_name_len != uri_len) // under IIS they are the same
1.144 paf 276: SAPI::die("CGI: illegal call");
1.122 parser 277: }
1.145 paf 278: #endif
1.122 parser 279: } else
280: request_info.uri=0;
281:
282: request_info.content_type=SAPI::get_env(pool, "CONTENT_TYPE");
283: const char *content_length=SAPI::get_env(pool, "CONTENT_LENGTH");
284: request_info.content_length=(content_length?atoi(content_length):0);
285: request_info.cookie=SAPI::get_env(pool, "HTTP_COOKIE");
286: request_info.user_agent=SAPI::get_env(pool, "HTTP_USER_AGENT");
287:
288: // prepare to process request
289: Request request(pool,
290: request_info,
1.143 paf 291: #ifdef _DEBUG
292: String::UL_HTML|String::UL_OPTIMIZE_BIT
293: #else
294: cgi ? String::UL_HTML|String::UL_OPTIMIZE_BIT : String::UL_AS_IS
295: #endif
296: ,
1.130 paf 297: true /* status_allowed */);
1.122 parser 298:
299: // some root-controlled location
300: #ifdef SYSCONFDIR
301: const char *root_config_filespec=SYSCONFDIR "/" CONFIG_FILE_NAME;
302: #else
303: # ifdef WIN32
304: // c:\windows
305: char root_config_path[MAX_STRING];
306: GetWindowsDirectory(root_config_path, MAX_STRING);
307:
308: char root_config_filespec[MAX_STRING];
309: snprintf(root_config_filespec, MAX_STRING,
310: "%s/%s",
311: root_config_path, CONFIG_FILE_NAME);
312: # else
313: #error must be compiled either configure/make or MSVC++
314: # endif
315: #endif
316:
317: // beside by binary
318: // @todo full path, not ./!
319: static char site_config_path[MAX_STRING];
320: strncpy(site_config_path, argv0, MAX_STRING-1); site_config_path[MAX_STRING-1]=0; // filespec of my binary
321: if(!(
322: rsplit(site_config_path, '/') ||
323: rsplit(site_config_path, '\\'))) { // strip filename
324: // no path, just filename
325: site_config_path[0]='.'; site_config_path[1]=0;
326: }
327:
328: char site_config_filespec[MAX_STRING];
329: snprintf(site_config_filespec, MAX_STRING,
330: "%s/%s",
331: site_config_path, CONFIG_FILE_NAME);
332:
333: // process the request
334: request.core(
335: root_config_filespec, false,
336: site_config_filespec, false,
337: header_only);
338:
339: //
340: done_socks();
341:
342: #ifdef DEBUG_POOL_MALLOC
343: extern void log_pool_stats(Pool& pool);
344: log_pool_stats(pool);
345: #endif
346: }
347:
348: void call_real_parser_handler__do_SEH(
349: const char *filespec_to_process,
350: const char *request_method, bool header_only) {
1.133 paf 351: #if _MSC_VER && !defined(_DEBUG)
1.122 parser 352: LPEXCEPTION_POINTERS system_exception=0;
353: __try {
354: #endif
355: real_parser_handler(
356: filespec_to_process,
357: request_method, header_only);
358:
1.133 paf 359: #if _MSC_VER && !defined(_DEBUG)
1.122 parser 360: } __except (
361: (system_exception=GetExceptionInformation()),
362: EXCEPTION_EXECUTE_HANDLER) {
363:
364: if(system_exception)
365: if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
366: throw Exception(0, 0,
367: 0,
368: "Exception 0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress);
369: else
370: throw Exception(0, 0, 0, "Exception <no exception record>");
371: else
372: throw Exception(0, 0, 0, "Exception <no exception information>");
373: }
374: #endif
375: }
376:
1.139 paf 377: #if _MSC_VER
1.135 paf 378: int failed_new(size_t size) {
379: SAPI::die("out of memory in 'new', failed to allocated %u bytes", size);
380: return 0; // not reached
1.131 paf 381: }
1.135 paf 382: #endif
1.131 paf 383:
1.135 paf 384: #ifdef HAVE_SET_NEW_HANDLER
1.134 paf 385: void failed_new() {
1.135 paf 386: SAPI::die("out of memory in 'new'");
1.131 paf 387: }
388: #endif
389:
1.5 paf 390: int main(int argc, char *argv[]) {
1.144 paf 391: // _asm int 3;
1.45 paf 392: argv0=argv[0];
393:
1.32 paf 394: umask(2);
395:
1.3 paf 396: // were we started as CGI?
1.146 paf 397: cgi=
1.109 parser 398: getenv("SERVER_SOFTWARE") ||
399: getenv("SERVER_NAME") ||
400: getenv("GATEWAY_INTERFACE") ||
401: getenv("REQUEST_METHOD");
1.5 paf 402:
1.10 paf 403: if(!cgi) {
404: if(argc<2) {
1.69 paf 405: printf(
1.100 parser 406: "Parser/%s Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com)\n"
1.128 paf 407: "Author: Alexander Petrosyan <paf@design.ru>(http://paf.design.ru)\n"
1.100 parser 408: "\n"
409: "Usage: %s <file>\n",
1.69 paf 410: PARSER_VERSION,
411: argv0?argv0:"parser3");
1.67 paf 412: return 1;
1.10 paf 413: }
414: }
415:
1.100 parser 416: #ifdef WIN32
417: setmode(fileno(stdin), _O_BINARY);
418: setmode(fileno(stdout), _O_BINARY);
419: setmode(fileno(stderr), _O_BINARY);
420: #endif
421:
1.139 paf 422: #if _MSC_VER
1.138 paf 423: _set_new_handler(failed_new);
1.148 paf 424:
425: #ifdef _DEBUG
426: // Get current flag
427: int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG );
428:
429: // Turn on leak-checking bit
430: tmpFlag |= _CRTDBG_LEAK_CHECK_DF;
431:
432: // Set flag to the new value
433: _CrtSetDbgFlag( tmpFlag );
434: // _CrtSetBreakAlloc(471);
435:
436: #endif
437:
1.138 paf 438: #endif
439:
440: #ifdef HAVE_SET_NEW_HANDLER
441: std::set_new_handler(failed_new);
442: #endif
443:
1.109 parser 444: char *filespec_to_process=cgi?getenv("PATH_TRANSLATED"):argv[1];
1.36 paf 445: #ifdef WIN32
1.43 paf 446: back_slashes_to_slashes(filespec_to_process);
1.36 paf 447: #endif
1.97 parser 448: filespec_to_process=full_file_spec(filespec_to_process);
1.10 paf 449:
1.109 parser 450: const char *request_method=getenv("REQUEST_METHOD");
1.35 paf 451: bool header_only=request_method && strcasecmp(request_method, "HEAD")==0;
1.131 paf 452:
1.122 parser 453: try { // global try
454: call_real_parser_handler__do_SEH(
455: filespec_to_process,
456: request_method, header_only);
457: } catch(const Exception& e) { // global problem
1.44 paf 458: // don't allocate anything on pool here:
459: // possible pool' exception not catch-ed now
460: // and there could be out-of-memory exception
1.43 paf 461:
1.144 paf 462: SAPI::die("exception in request exception handler: %s", e.comment());
1.134 paf 463: #ifndef _DEBUG
1.131 paf 464: } catch(...) {
1.134 paf 465: SAPI::die("<unknown exception>");
1.133 paf 466: #endif
1.16 paf 467: }
1.122 parser 468:
1.109 parser 469:
470: #ifndef WIN32
471: //
472: if(!cgi)
473: SAPI::send_body(pool, "\n", 1);
474: #endif
1.134 paf 475: return 0;
1.1 paf 476: }
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