Annotation of parser3/src/targets/cgi/parser3.C, revision 1.137
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:
1.137 ! paf 7: $Id: parser3.C,v 1.136 2001/11/16 12:38:44 paf Exp $
1.1 paf 8: */
9:
1.40 paf 10: #include "pa_config_includes.h"
1.3 paf 11:
12: #ifdef WIN32
13: # include <windows.h>
1.131 paf 14: # include <new.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:
1.120 parser 25: #ifdef XML
26: #include <XalanTransformer/XalanCAPI.h>
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:
1.124 parser 119: va_list args;
120: va_start(args,fmt);
121: ::log(fmt, args);
122: va_end(args);
123:
1.134 paf 124: char body[MAX_STRING];
125: size_t size=vsnprintf(body, MAX_STRING, fmt, args);
126:
127: //
128: int content_length=strlen(body);
129:
130: // prepare header
131: // let's be honest, that's bad we couldn't produce valid output
132: SAPI::add_header_attribute(pool, "status", "500");
133: SAPI::add_header_attribute(pool, "content-type", "text/plain");
134: char content_length_cstr[MAX_NUMBER];
135: snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length);
136: SAPI::add_header_attribute(pool, "content-length", content_length_cstr);
137:
138: // send header
139: SAPI::send_header(pool);
140:
141: // body
142: SAPI::send_body(pool, body, content_length);
143:
1.124 parser 144: exit(1);
1.61 paf 145: }
146:
1.122 parser 147: const char *SAPI::get_env(Pool& , const char *name) {
1.109 parser 148: return getenv(name);
1.28 paf 149: }
150:
1.122 parser 151: size_t SAPI::read_post(Pool& , char *buf, size_t max_bytes) {
1.59 paf 152: size_t read_size=0;
1.12 paf 153: do {
1.36 paf 154: int chunk_size=read(fileno(stdin),
1.42 paf 155: buf+read_size, min(READ_POST_CHUNK_SIZE, max_bytes-read_size));
1.129 paf 156: if(chunk_size<=0)
1.12 paf 157: break;
158: read_size+=chunk_size;
159: } while(read_size<max_bytes);
160:
161: return read_size;
1.10 paf 162: }
163:
1.122 parser 164: void SAPI::add_header_attribute(Pool& , const char *key, const char *value) {
1.68 paf 165: if(cgi)
1.20 paf 166: printf("%s: %s\n", key, value);
1.19 paf 167: }
168:
1.56 paf 169: /// @todo intelligent cache-control
1.122 parser 170: void SAPI::send_header(Pool& ) {
1.33 paf 171: if(cgi) {
1.55 paf 172: puts("expires: Fri, 23 Mar 2001 09:32:23 GMT");
1.33 paf 173:
174: // header | body delimiter
1.20 paf 175: puts("");
1.33 paf 176: }
1.30 paf 177: }
1.20 paf 178:
1.122 parser 179: void SAPI::send_body(Pool& , const void *buf, size_t size) {
1.19 paf 180: stdout_write(buf, size);
1.58 paf 181: }
182:
1.97 parser 183: //
184:
185: char *full_file_spec(char *file_name) {
1.108 parser 186: if(file_name && !strchr(file_name, '/')) {
1.97 parser 187: static char cwd[MAX_STRING]; getcwd(cwd, MAX_STRING);
188: static char buf[MAX_STRING];
189: snprintf(buf, MAX_STRING, "%s/%s", cwd, file_name);
190: return buf;
191: }
192: return file_name;
193: }
194:
1.40 paf 195: /**
1.122 parser 196: main workhorse
1.19 paf 197:
1.122 parser 198: @todo
1.40 paf 199: IIS: remove trailing default-document[index.html] from $request.uri.
200: to do that we need to consult metabase,
201: wich is tested but seems slow.
202: */
1.122 parser 203: void real_parser_handler(
204: const char *filespec_to_process,
205: const char *request_method, bool header_only) {
206: // init socks
207: init_socks(pool);
208:
209: #ifdef XML
210: /**
211: * Initialize Xerces and Xalan.
212: *
213: * Should be called only once per process before making
214: * any other API calls.
215: */
216: //_asm int 3;
217: XalanInitialize();
218: #endif
219:
220: // init global classes
221: init_methoded_array(pool);
222: // init global variables
223: pa_globals_init(pool);
224:
225: if(!filespec_to_process)
226: throw Exception(0, 0,
227: 0,
228: "Parser/%s", PARSER_VERSION);
229:
230: // Request info
231: Request::Info request_info;
232: if(cgi) {
233: if(const char *env_document_root=SAPI::get_env(pool, "DOCUMENT_ROOT"))
234: request_info.document_root=env_document_root;
235: else if(const char *path_info=SAPI::get_env(pool, "PATH_INFO")) {
236: // IIS
237: size_t len=strlen(filespec_to_process)-strlen(path_info);
238: char *buf=(char *)pool.malloc(len+1);
239: memcpy(buf, filespec_to_process, len); buf[len]=0;
240: request_info.document_root=buf;
241: } else
242: throw Exception(0, 0,
243: 0,
244: "CGI: no PATH_INFO defined(in reinventing DOCUMENT_ROOT)");
245: } else {
246: static char buf[MAX_STRING];
247: strncpy(buf, filespec_to_process, MAX_STRING-1); buf[MAX_STRING-1]=0;
248: if(rsplit(buf, '/') || rsplit(buf, '\\')) // strip filename
249: request_info.document_root=buf;
250: else
251: request_info.document_root="";
252: }
253: request_info.path_translated=filespec_to_process;
254: request_info.method=request_method ? request_method : "GET";
255: const char *query_string=SAPI::get_env(pool, "QUERY_STRING");
256: request_info.query_string=query_string;
257: if(cgi) {
258: if(const char *env_request_uri=SAPI::get_env(pool, "REQUEST_URI"))
259: request_info.uri=env_request_uri;
260: else if(const char *path_info=SAPI::get_env(pool, "PATH_INFO"))
261: if(query_string) {
262: char *reconstructed_uri=(char *)pool.malloc(
263: strlen(path_info)+1/*'?'*/+
264: strlen(query_string)+1/*0*/);
265: strcpy(reconstructed_uri, path_info);
266: strcat(reconstructed_uri, "?");
267: strcat(reconstructed_uri, query_string);
268: request_info.uri=reconstructed_uri;
269: } else
270: request_info.uri=path_info;
271: else
272: throw Exception(0, 0,
273: 0,
274: "CGI: no PATH_INFO defined(in reinventing REQUEST_URI)");
275:
276: if(const char *script_name=SAPI::get_env(pool, "SCRIPT_NAME")) {
277: size_t script_name_len=strlen(script_name);
278: size_t uri_len=strlen(request_info.uri);
279: if(strncmp(request_info.uri,script_name, script_name_len)==0 &&
280: script_name_len != uri_len) // under IIS they are the same
281: throw Exception(0, 0,
282: 0,
283: "CGI: illegal call");
284: }
285: } else
286: request_info.uri=0;
287:
288: request_info.content_type=SAPI::get_env(pool, "CONTENT_TYPE");
289: const char *content_length=SAPI::get_env(pool, "CONTENT_LENGTH");
290: request_info.content_length=(content_length?atoi(content_length):0);
291: request_info.cookie=SAPI::get_env(pool, "HTTP_COOKIE");
292: request_info.user_agent=SAPI::get_env(pool, "HTTP_USER_AGENT");
293:
294: // prepare to process request
295: Request request(pool,
296: request_info,
1.136 paf 297: cgi ? String::UL_OPTIMIZED_HTML : String::UL_AS_IS,
1.130 paf 298: true /* status_allowed */);
1.122 parser 299:
300: // some root-controlled location
301: #ifdef SYSCONFDIR
302: const char *root_config_filespec=SYSCONFDIR "/" CONFIG_FILE_NAME;
303: #else
304: # ifdef WIN32
305: // c:\windows
306: char root_config_path[MAX_STRING];
307: GetWindowsDirectory(root_config_path, MAX_STRING);
308:
309: char root_config_filespec[MAX_STRING];
310: snprintf(root_config_filespec, MAX_STRING,
311: "%s/%s",
312: root_config_path, CONFIG_FILE_NAME);
313: # else
314: #error must be compiled either configure/make or MSVC++
315: # endif
316: #endif
317:
318: // beside by binary
319: // @todo full path, not ./!
320: static char site_config_path[MAX_STRING];
321: strncpy(site_config_path, argv0, MAX_STRING-1); site_config_path[MAX_STRING-1]=0; // filespec of my binary
322: if(!(
323: rsplit(site_config_path, '/') ||
324: rsplit(site_config_path, '\\'))) { // strip filename
325: // no path, just filename
326: site_config_path[0]='.'; site_config_path[1]=0;
327: }
328:
329: char site_config_filespec[MAX_STRING];
330: snprintf(site_config_filespec, MAX_STRING,
331: "%s/%s",
332: site_config_path, CONFIG_FILE_NAME);
333:
334: // process the request
335: request.core(
336: root_config_filespec, false,
337: site_config_filespec, false,
338: header_only);
339:
340: //
341: done_socks();
342:
343: #ifdef DEBUG_POOL_MALLOC
344: extern void log_pool_stats(Pool& pool);
345: log_pool_stats(pool);
346: #endif
347: }
348:
349: void call_real_parser_handler__do_SEH(
350: const char *filespec_to_process,
351: const char *request_method, bool header_only) {
1.133 paf 352: #if _MSC_VER && !defined(_DEBUG)
1.122 parser 353: LPEXCEPTION_POINTERS system_exception=0;
354: __try {
355: #endif
356: real_parser_handler(
357: filespec_to_process,
358: request_method, header_only);
359:
1.133 paf 360: #if _MSC_VER && !defined(_DEBUG)
1.122 parser 361: } __except (
362: (system_exception=GetExceptionInformation()),
363: EXCEPTION_EXECUTE_HANDLER) {
364:
365: if(system_exception)
366: if(_EXCEPTION_RECORD *er=system_exception->ExceptionRecord)
367: throw Exception(0, 0,
368: 0,
369: "Exception 0x%08X at 0x%08X", er->ExceptionCode, er->ExceptionAddress);
370: else
371: throw Exception(0, 0, 0, "Exception <no exception record>");
372: else
373: throw Exception(0, 0, 0, "Exception <no exception information>");
374: }
375: #endif
376: }
377:
1.135 paf 378: #ifdef WIN32
379: int failed_new(size_t size) {
380: SAPI::die("out of memory in 'new', failed to allocated %u bytes", size);
381: return 0; // not reached
1.131 paf 382: }
1.135 paf 383: #endif
1.131 paf 384:
1.135 paf 385: #ifdef HAVE_SET_NEW_HANDLER
1.134 paf 386: void failed_new() {
1.135 paf 387: SAPI::die("out of memory in 'new'");
1.131 paf 388: }
389: #endif
390:
1.5 paf 391: int main(int argc, char *argv[]) {
1.45 paf 392: argv0=argv[0];
393:
1.32 paf 394: umask(2);
395:
1.3 paf 396: // were we started as CGI?
1.20 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:
1.109 parser 422: char *filespec_to_process=cgi?getenv("PATH_TRANSLATED"):argv[1];
1.36 paf 423: #ifdef WIN32
1.43 paf 424: back_slashes_to_slashes(filespec_to_process);
1.36 paf 425: #endif
1.97 parser 426: filespec_to_process=full_file_spec(filespec_to_process);
1.10 paf 427:
1.109 parser 428: const char *request_method=getenv("REQUEST_METHOD");
1.35 paf 429: bool header_only=request_method && strcasecmp(request_method, "HEAD")==0;
1.131 paf 430:
431: #ifdef WIN32
432: _set_new_handler(failed_new);
433: #endif
434:
435: #ifdef HAVE_SET_NEW_HANDLER
1.132 paf 436: std::set_new_handler(failed_new);
1.131 paf 437: #endif
438:
1.122 parser 439: try { // global try
440: call_real_parser_handler__do_SEH(
441: filespec_to_process,
442: request_method, header_only);
443: } catch(const Exception& e) { // global problem
1.44 paf 444: // don't allocate anything on pool here:
445: // possible pool' exception not catch-ed now
446: // and there could be out-of-memory exception
1.43 paf 447:
1.134 paf 448: SAPI::die("exception in request exception handler: ", e.comment());
449: #ifndef _DEBUG
1.131 paf 450: } catch(...) {
1.134 paf 451: SAPI::die("<unknown exception>");
1.133 paf 452: #endif
1.16 paf 453: }
1.122 parser 454:
1.109 parser 455:
456: #ifndef WIN32
457: //
458: if(!cgi)
459: SAPI::send_body(pool, "\n", 1);
460: #endif
1.134 paf 461: return 0;
1.1 paf 462: }
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