Annotation of parser3/src/targets/cgi/parser3.C, revision 1.119
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)
1.113 parser 5: Author: Alexander Petrosyan <paf@design.ru>(http://design.ru/paf)
1.27 paf 6:
1.119 ! parser 7: $Id: parser3.C,v 1.118 2001/10/09 14:25:30 parser 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>
14: #endif
1.27 paf 15:
1.37 paf 16: #include "pa_sapi.h"
1.76 paf 17: #include "classes.h"
1.24 paf 18: #include "pa_common.h"
1.2 paf 19: #include "pa_request.h"
1.57 paf 20: #include "pa_socks.h"
1.68 paf 21: #include "pa_version.h"
1.69 paf 22:
1.84 parser 23: //#define DEBUG_POOL_MALLOC
24:
1.109 parser 25: // consts
1.113 parser 26:
27: extern const char *main_RCSIds[];
1.116 parser 28: #ifdef USE_SMTP
1.113 parser 29: extern const char *smtp_RCSIds[];
1.114 parser 30: #endif
1.113 parser 31: extern const char *gd_RCSIds[];
32: extern const char *classes_RCSIds[];
33: extern const char *types_RCSIds[];
1.115 parser 34: extern const char *parser3_RCSIds[];
1.119 ! parser 35: #ifdef XML
! 36: extern const char *xalan_patched_RCSIds[];
! 37: #endif
1.113 parser 38: const char **RCSIds[]={
39: main_RCSIds,
1.116 parser 40: #ifdef USE_SMTP
1.113 parser 41: smtp_RCSIds,
1.114 parser 42: #endif
1.113 parser 43: gd_RCSIds,
44: classes_RCSIds,
45: types_RCSIds,
1.115 parser 46: parser3_RCSIds,
1.118 parser 47: #ifdef XML
48: xalan_patched_RCSIds,
49: #endif
1.113 parser 50: 0
51: };
1.84 parser 52:
1.42 paf 53: /// IIS refuses to read bigger chunks
54: const size_t READ_POST_CHUNK_SIZE=0x400*0x400; // 1M
55:
1.45 paf 56: const char *argv0;
1.42 paf 57: Pool pool(0); // global pool [dont describe to doxygen: it confuses it with param names]
1.27 paf 58: bool cgi; ///< we were started as CGI?
1.5 paf 59:
1.40 paf 60: #ifdef WIN32
61: /// global system errors into parser exceptions converter
1.43 paf 62: static LONG WINAPI TopLevelExceptionFilter(struct _EXCEPTION_POINTERS *ExceptionInfo) {
1.5 paf 63: char buf[MAX_STRING];
64: if(ExceptionInfo && ExceptionInfo->ExceptionRecord) {
1.36 paf 65: struct _EXCEPTION_RECORD *er=ExceptionInfo->ExceptionRecord;
1.46 paf 66: snprintf(buf, MAX_STRING, "Exception 0x%X at %p",
1.31 paf 67: er->ExceptionCode,
68: er->ExceptionAddress);
1.5 paf 69: } else
70: strcpy(buf, "Exception <unknown>");
71:
72: PTHROW(0, 0,
73: 0,
74: buf);
75:
76: return EXCEPTION_EXECUTE_HANDLER; // never reached
77: }
1.27 paf 78: #endif
79:
1.46 paf 80: // SAPI
1.86 parser 81:
82: // appends to parser3.log located beside my binary if openable, to stderr otherwize
1.61 paf 83: void SAPI::log(Pool& pool, const char *fmt, ...) {
84: bool opened;
85: FILE *f=0;
86:
87: if(argv0) {
88: // beside by binary
89: char file_spec[MAX_STRING];
1.98 parser 90: strncpy(file_spec, argv0, MAX_STRING-1); file_spec[MAX_STRING-1]=0; // filespec of my binary
1.61 paf 91: rsplit(file_spec, '/'); rsplit(file_spec, '\\');// strip filename
92: strcat(file_spec, "/parser3.log");
93: f=fopen(file_spec, "at");
94: }
95: opened=f!=0;
96: if(!opened)
97: f=stderr;
98:
99: // prefix
100: time_t t=time(0);
101: const char *stamp=ctime(&t);
102: fprintf(f, "[%.*s] ", strlen(stamp)-1, stamp);
103: // message
104: va_list args;
105: va_start(args,fmt);
1.117 parser 106:
107: char buf[MAX_STRING];
108: size_t size=vsnprintf(buf, MAX_STRING, fmt, args);
109: remove_crlf(buf, buf+size);
110:
111: fwrite(buf, size, 1, f);
1.61 paf 112: va_end(args);
113: // newline
114: fprintf(f, "\n");
115:
116: if(opened)
117: fclose(f);
1.85 parser 118: else
119: fflush(f);
1.61 paf 120: }
121:
1.37 paf 122: const char *SAPI::get_env(Pool& pool, const char *name) {
1.109 parser 123: return getenv(name);
1.28 paf 124: }
125:
1.59 paf 126: size_t SAPI::read_post(Pool& pool, char *buf, size_t max_bytes) {
127: size_t read_size=0;
1.12 paf 128: do {
1.36 paf 129: int chunk_size=read(fileno(stdin),
1.42 paf 130: buf+read_size, min(READ_POST_CHUNK_SIZE, max_bytes-read_size));
1.12 paf 131: if(chunk_size<0)
132: break;
133: read_size+=chunk_size;
134: } while(read_size<max_bytes);
135:
136: return read_size;
1.10 paf 137: }
138:
1.37 paf 139: void SAPI::add_header_attribute(Pool& pool, const char *key, const char *value) {
1.68 paf 140: if(cgi)
1.20 paf 141: printf("%s: %s\n", key, value);
1.19 paf 142: }
143:
1.56 paf 144: /// @todo intelligent cache-control
1.37 paf 145: void SAPI::send_header(Pool& pool) {
1.33 paf 146: if(cgi) {
1.55 paf 147: puts("expires: Fri, 23 Mar 2001 09:32:23 GMT");
1.33 paf 148:
149: // header | body delimiter
1.20 paf 150: puts("");
1.33 paf 151: }
1.30 paf 152: }
1.20 paf 153:
1.53 paf 154: void SAPI::send_body(Pool& pool, const void *buf, size_t size) {
1.19 paf 155: stdout_write(buf, size);
1.58 paf 156: }
157:
1.97 parser 158: //
159:
160: char *full_file_spec(char *file_name) {
1.108 parser 161: if(file_name && !strchr(file_name, '/')) {
1.97 parser 162: static char cwd[MAX_STRING]; getcwd(cwd, MAX_STRING);
163: static char buf[MAX_STRING];
164: snprintf(buf, MAX_STRING, "%s/%s", cwd, file_name);
165: return buf;
166: }
167: return file_name;
168: }
169:
1.40 paf 170: /**
171: main workhorse
1.19 paf 172:
1.56 paf 173: @todo
1.40 paf 174: IIS: remove trailing default-document[index.html] from $request.uri.
175: to do that we need to consult metabase,
176: wich is tested but seems slow.
177: */
1.5 paf 178: int main(int argc, char *argv[]) {
1.109 parser 179: int result;
1.45 paf 180: argv0=argv[0];
181:
1.32 paf 182: umask(2);
183:
1.3 paf 184: // were we started as CGI?
1.20 paf 185: cgi=
1.109 parser 186: getenv("SERVER_SOFTWARE") ||
187: getenv("SERVER_NAME") ||
188: getenv("GATEWAY_INTERFACE") ||
189: getenv("REQUEST_METHOD");
1.5 paf 190:
1.10 paf 191: if(!cgi) {
192: if(argc<2) {
1.69 paf 193: printf(
1.100 parser 194: "Parser/%s Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com)\n"
195: "Author: Alexander Petrosyan <paf@design.ru>(http://design.ru/paf)\n"
196: "\n"
197: "Usage: %s <file>\n",
1.69 paf 198: PARSER_VERSION,
199: argv0?argv0:"parser3");
1.67 paf 200: return 1;
1.10 paf 201: }
202: }
203:
1.100 parser 204: #ifdef WIN32
205: setmode(fileno(stdin), _O_BINARY);
206: setmode(fileno(stdout), _O_BINARY);
207: setmode(fileno(stderr), _O_BINARY);
208: #endif
209:
1.109 parser 210: char *filespec_to_process=cgi?getenv("PATH_TRANSLATED"):argv[1];
1.36 paf 211: #ifdef WIN32
1.43 paf 212: back_slashes_to_slashes(filespec_to_process);
1.36 paf 213: #endif
1.97 parser 214: filespec_to_process=full_file_spec(filespec_to_process);
1.10 paf 215:
1.109 parser 216: const char *request_method=getenv("REQUEST_METHOD");
1.35 paf 217: bool header_only=request_method && strcasecmp(request_method, "HEAD")==0;
1.5 paf 218: PTRY { // global try
219: // must be first in PTRY{}PCATCH
1.40 paf 220: #ifdef WIN32
1.5 paf 221: SetUnhandledExceptionFilter(&TopLevelExceptionFilter);
222: #endif
1.2 paf 223:
1.62 paf 224: // init socks
1.57 paf 225: init_socks(pool);
226:
1.73 paf 227: // init global classes
228: init_methoded_array(pool);
1.10 paf 229: // init global variables
1.37 paf 230: pa_globals_init(pool);
1.10 paf 231:
1.13 paf 232: if(!filespec_to_process)
233: PTHROW(0, 0,
234: 0,
1.68 paf 235: "Parser/%s", PARSER_VERSION);
1.13 paf 236:
1.10 paf 237: // Request info
238: Request::Info request_info;
1.39 paf 239: if(cgi) {
1.51 paf 240: if(const char *env_document_root=SAPI::get_env(pool, "DOCUMENT_ROOT"))
1.39 paf 241: request_info.document_root=env_document_root;
1.51 paf 242: else if(const char *path_info=SAPI::get_env(pool, "PATH_INFO")) {
1.40 paf 243: // IIS
1.39 paf 244: size_t len=strlen(filespec_to_process)-strlen(path_info);
1.40 paf 245: char *buf=(char *)pool.malloc(len+1);
1.98 parser 246: memcpy(buf, filespec_to_process, len); buf[len]=0;
1.39 paf 247: request_info.document_root=buf;
248: } else
249: PTHROW(0, 0,
250: 0,
1.43 paf 251: "CGI: no PATH_INFO defined(in reinventing DOCUMENT_ROOT)");
1.39 paf 252: } else {
253: static char buf[MAX_STRING];
1.98 parser 254: strncpy(buf, filespec_to_process, MAX_STRING-1); buf[MAX_STRING-1]=0;
1.70 paf 255: if(rsplit(buf, '/') || rsplit(buf, '\\')) // strip filename
256: request_info.document_root=buf;
257: else
258: request_info.document_root="";
1.13 paf 259: }
1.10 paf 260: request_info.path_translated=filespec_to_process;
1.107 parser 261: request_info.method=request_method ? request_method : "GET";
1.51 paf 262: const char *query_string=SAPI::get_env(pool, "QUERY_STRING");
1.40 paf 263: request_info.query_string=query_string;
1.68 paf 264: if(cgi) {
1.51 paf 265: if(const char *env_request_uri=SAPI::get_env(pool, "REQUEST_URI"))
1.42 paf 266: request_info.uri=env_request_uri;
1.51 paf 267: else if(const char *path_info=SAPI::get_env(pool, "PATH_INFO"))
1.42 paf 268: if(query_string) {
269: char *reconstructed_uri=(char *)malloc(
270: strlen(path_info)+1/*'?'*/+
271: strlen(query_string)+1/*0*/);
272: strcpy(reconstructed_uri, path_info);
273: strcat(reconstructed_uri, "?");
274: strcat(reconstructed_uri, query_string);
275: request_info.uri=reconstructed_uri;
276: } else
277: request_info.uri=path_info;
278: else
279: PTHROW(0, 0,
280: 0,
1.43 paf 281: "CGI: no PATH_INFO defined(in reinventing REQUEST_URI)");
1.68 paf 282:
1.72 paf 283: if(const char *script_name=SAPI::get_env(pool, "SCRIPT_NAME")) {
284: size_t script_name_len=strlen(script_name);
285: size_t uri_len=strlen(request_info.uri);
286: if(strncmp(request_info.uri,script_name, script_name_len)==0 &&
287: script_name_len != uri_len) // under IIS they are the same
288: PTHROW(0, 0,
289: 0,
290: "CGI: illegal call");
291: }
1.68 paf 292: } else
1.42 paf 293: request_info.uri=0;
1.40 paf 294:
1.51 paf 295: request_info.content_type=SAPI::get_env(pool, "CONTENT_TYPE");
296: const char *content_length=SAPI::get_env(pool, "CONTENT_LENGTH");
1.10 paf 297: request_info.content_length=(content_length?atoi(content_length):0);
1.51 paf 298: request_info.cookie=SAPI::get_env(pool, "HTTP_COOKIE");
299: request_info.user_agent=SAPI::get_env(pool, "HTTP_USER_AGENT");
1.10 paf 300:
1.5 paf 301: // prepare to process request
1.38 paf 302: Request request(pool,
1.10 paf 303: request_info,
1.91 parser 304: cgi ? String::UL_USER_HTML : String::UL_AS_IS
1.5 paf 305: );
306:
307: // some root-controlled location
1.102 parser 308: #ifdef SYSCONFDIR
1.111 parser 309: const char *root_config_filespec=SYSCONFDIR "/" CONFIG_FILE_NAME;
1.102 parser 310: #else
311: # ifdef WIN32
1.10 paf 312: // c:\windows
1.111 parser 313: char root_config_path[MAX_STRING];
314: GetWindowsDirectory(root_config_path, MAX_STRING);
315:
316: char root_config_filespec[MAX_STRING];
317: snprintf(root_config_filespec, MAX_STRING,
318: "%s/%s",
319: root_config_path, CONFIG_FILE_NAME);
1.101 parser 320: # else
1.102 parser 321: #error must be compiled either configure/make or MSVC++
1.101 parser 322: # endif
1.5 paf 323: #endif
324:
325: // beside by binary
1.111 parser 326: // @todo full path, not ./!
327: static char site_config_path[MAX_STRING];
328: strncpy(site_config_path, argv0, MAX_STRING-1); site_config_path[MAX_STRING-1]=0; // filespec of my binary
1.88 parser 329: if(!(
1.111 parser 330: rsplit(site_config_path, '/') ||
331: rsplit(site_config_path, '\\'))) { // strip filename
1.88 parser 332: // no path, just filename
1.111 parser 333: site_config_path[0]='.'; site_config_path[1]=0;
1.88 parser 334: }
1.111 parser 335:
336: char site_config_filespec[MAX_STRING];
337: snprintf(site_config_filespec, MAX_STRING,
338: "%s/%s",
339: site_config_path, CONFIG_FILE_NAME);
1.5 paf 340:
341: // process the request
1.35 paf 342: request.core(
1.111 parser 343: root_config_filespec, false,
344: site_config_filespec, false,
1.35 paf 345: header_only);
1.57 paf 346:
347: //
348: done_socks();
1.84 parser 349:
350: #ifdef DEBUG_POOL_MALLOC
1.78 parser 351: extern void log_pool_stats(Pool& pool);
352: log_pool_stats(pool);
1.84 parser 353: #endif
1.16 paf 354:
1.22 paf 355: // must be last in PTRY{}PCATCH
1.40 paf 356: #ifdef WIN32
1.5 paf 357: SetUnhandledExceptionFilter(0);
1.25 paf 358: #endif
1.100 parser 359:
1.16 paf 360: // successful finish
1.109 parser 361: result=0;
1.16 paf 362: } PCATCH(e) { // global problem
1.43 paf 363: // must be first in PCATCH{}
364: #ifdef WIN32
365: SetUnhandledExceptionFilter(0);
366: #endif
1.44 paf 367: // don't allocate anything on pool here:
368: // possible pool' exception not catch-ed now
369: // and there could be out-of-memory exception
1.43 paf 370:
1.19 paf 371: const char *body=e.comment();
1.44 paf 372: // log it
373: SAPI::log(pool, "exception in request exception handler: %s", body);
374:
375: //
1.19 paf 376: int content_length=strlen(body);
1.5 paf 377:
1.35 paf 378: // prepare header
1.37 paf 379: SAPI::add_header_attribute(pool, "content-type", "text/plain");
1.19 paf 380: char content_length_cstr[MAX_NUMBER];
1.60 paf 381: snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length);
1.37 paf 382: SAPI::add_header_attribute(pool, "content-length", content_length_cstr);
1.35 paf 383:
384: // send header
1.37 paf 385: SAPI::send_header(pool);
1.19 paf 386:
387: // body
1.35 paf 388: if(!header_only)
1.37 paf 389: SAPI::send_body(pool, body, content_length);
1.94 parser 390:
1.16 paf 391: // unsuccessful finish
1.109 parser 392: result=1;
1.16 paf 393: }
394: PEND_CATCH
1.109 parser 395:
396: #ifndef WIN32
397: //
398: if(!cgi)
399: SAPI::send_body(pool, "\n", 1);
400: #endif
401: return result;
1.1 paf 402: }
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