Annotation of parser3/src/targets/cgi/parser3.C, revision 1.118
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:
1.118 ! parser 7: $Id: parser3.C,v 1.117 2001/10/08 09:04:08 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[];
1.113 parser 35: const char **RCSIds[]={
36: main_RCSIds,
1.116 parser 37: #ifdef USE_SMTP
1.113 parser 38: smtp_RCSIds,
1.114 parser 39: #endif
1.113 parser 40: gd_RCSIds,
41: classes_RCSIds,
42: types_RCSIds,
1.115 parser 43: parser3_RCSIds,
1.118 ! parser 44: #ifdef XML
! 45: xalan_patched_RCSIds,
! 46: #endif
1.113 parser 47: 0
48: };
1.84 parser 49:
1.42 paf 50: /// IIS refuses to read bigger chunks
51: const size_t READ_POST_CHUNK_SIZE=0x400*0x400; // 1M
52:
1.45 paf 53: const char *argv0;
1.42 paf 54: Pool pool(0); // global pool [dont describe to doxygen: it confuses it with param names]
1.27 paf 55: bool cgi; ///< we were started as CGI?
1.5 paf 56:
1.40 paf 57: #ifdef WIN32
58: /// global system errors into parser exceptions converter
1.43 paf 59: static LONG WINAPI TopLevelExceptionFilter(struct _EXCEPTION_POINTERS *ExceptionInfo) {
1.5 paf 60: char buf[MAX_STRING];
61: if(ExceptionInfo && ExceptionInfo->ExceptionRecord) {
1.36 paf 62: struct _EXCEPTION_RECORD *er=ExceptionInfo->ExceptionRecord;
1.46 paf 63: snprintf(buf, MAX_STRING, "Exception 0x%X at %p",
1.31 paf 64: er->ExceptionCode,
65: er->ExceptionAddress);
1.5 paf 66: } else
67: strcpy(buf, "Exception <unknown>");
68:
69: PTHROW(0, 0,
70: 0,
71: buf);
72:
73: return EXCEPTION_EXECUTE_HANDLER; // never reached
74: }
1.27 paf 75: #endif
76:
1.46 paf 77: // SAPI
1.86 parser 78:
79: // appends to parser3.log located beside my binary if openable, to stderr otherwize
1.61 paf 80: void SAPI::log(Pool& pool, const char *fmt, ...) {
81: bool opened;
82: FILE *f=0;
83:
84: if(argv0) {
85: // beside by binary
86: char file_spec[MAX_STRING];
1.98 parser 87: strncpy(file_spec, argv0, MAX_STRING-1); file_spec[MAX_STRING-1]=0; // filespec of my binary
1.61 paf 88: rsplit(file_spec, '/'); rsplit(file_spec, '\\');// strip filename
89: strcat(file_spec, "/parser3.log");
90: f=fopen(file_spec, "at");
91: }
92: opened=f!=0;
93: if(!opened)
94: f=stderr;
95:
96: // prefix
97: time_t t=time(0);
98: const char *stamp=ctime(&t);
99: fprintf(f, "[%.*s] ", strlen(stamp)-1, stamp);
100: // message
101: va_list args;
102: va_start(args,fmt);
1.117 parser 103:
104: char buf[MAX_STRING];
105: size_t size=vsnprintf(buf, MAX_STRING, fmt, args);
106: remove_crlf(buf, buf+size);
107:
108: fwrite(buf, size, 1, f);
1.61 paf 109: va_end(args);
110: // newline
111: fprintf(f, "\n");
112:
113: if(opened)
114: fclose(f);
1.85 parser 115: else
116: fflush(f);
1.61 paf 117: }
118:
1.37 paf 119: const char *SAPI::get_env(Pool& pool, const char *name) {
1.109 parser 120: return getenv(name);
1.28 paf 121: }
122:
1.59 paf 123: size_t SAPI::read_post(Pool& pool, char *buf, size_t max_bytes) {
124: size_t read_size=0;
1.12 paf 125: do {
1.36 paf 126: int chunk_size=read(fileno(stdin),
1.42 paf 127: buf+read_size, min(READ_POST_CHUNK_SIZE, max_bytes-read_size));
1.12 paf 128: if(chunk_size<0)
129: break;
130: read_size+=chunk_size;
131: } while(read_size<max_bytes);
132:
133: return read_size;
1.10 paf 134: }
135:
1.37 paf 136: void SAPI::add_header_attribute(Pool& pool, const char *key, const char *value) {
1.68 paf 137: if(cgi)
1.20 paf 138: printf("%s: %s\n", key, value);
1.19 paf 139: }
140:
1.56 paf 141: /// @todo intelligent cache-control
1.37 paf 142: void SAPI::send_header(Pool& pool) {
1.33 paf 143: if(cgi) {
1.55 paf 144: puts("expires: Fri, 23 Mar 2001 09:32:23 GMT");
1.33 paf 145:
146: // header | body delimiter
1.20 paf 147: puts("");
1.33 paf 148: }
1.30 paf 149: }
1.20 paf 150:
1.53 paf 151: void SAPI::send_body(Pool& pool, const void *buf, size_t size) {
1.19 paf 152: stdout_write(buf, size);
1.58 paf 153: }
154:
1.97 parser 155: //
156:
157: char *full_file_spec(char *file_name) {
1.108 parser 158: if(file_name && !strchr(file_name, '/')) {
1.97 parser 159: static char cwd[MAX_STRING]; getcwd(cwd, MAX_STRING);
160: static char buf[MAX_STRING];
161: snprintf(buf, MAX_STRING, "%s/%s", cwd, file_name);
162: return buf;
163: }
164: return file_name;
165: }
166:
1.40 paf 167: /**
168: main workhorse
1.19 paf 169:
1.56 paf 170: @todo
1.40 paf 171: IIS: remove trailing default-document[index.html] from $request.uri.
172: to do that we need to consult metabase,
173: wich is tested but seems slow.
174: */
1.5 paf 175: int main(int argc, char *argv[]) {
1.109 parser 176: int result;
1.45 paf 177: argv0=argv[0];
178:
1.32 paf 179: umask(2);
180:
1.3 paf 181: // were we started as CGI?
1.20 paf 182: cgi=
1.109 parser 183: getenv("SERVER_SOFTWARE") ||
184: getenv("SERVER_NAME") ||
185: getenv("GATEWAY_INTERFACE") ||
186: getenv("REQUEST_METHOD");
1.5 paf 187:
1.10 paf 188: if(!cgi) {
189: if(argc<2) {
1.69 paf 190: printf(
1.100 parser 191: "Parser/%s Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com)\n"
192: "Author: Alexander Petrosyan <paf@design.ru>(http://design.ru/paf)\n"
193: "\n"
194: "Usage: %s <file>\n",
1.69 paf 195: PARSER_VERSION,
196: argv0?argv0:"parser3");
1.67 paf 197: return 1;
1.10 paf 198: }
199: }
200:
1.100 parser 201: #ifdef WIN32
202: setmode(fileno(stdin), _O_BINARY);
203: setmode(fileno(stdout), _O_BINARY);
204: setmode(fileno(stderr), _O_BINARY);
205: #endif
206:
1.109 parser 207: char *filespec_to_process=cgi?getenv("PATH_TRANSLATED"):argv[1];
1.36 paf 208: #ifdef WIN32
1.43 paf 209: back_slashes_to_slashes(filespec_to_process);
1.36 paf 210: #endif
1.97 parser 211: filespec_to_process=full_file_spec(filespec_to_process);
1.10 paf 212:
1.109 parser 213: const char *request_method=getenv("REQUEST_METHOD");
1.35 paf 214: bool header_only=request_method && strcasecmp(request_method, "HEAD")==0;
1.5 paf 215: PTRY { // global try
216: // must be first in PTRY{}PCATCH
1.40 paf 217: #ifdef WIN32
1.5 paf 218: SetUnhandledExceptionFilter(&TopLevelExceptionFilter);
219: #endif
1.2 paf 220:
1.62 paf 221: // init socks
1.57 paf 222: init_socks(pool);
223:
1.73 paf 224: // init global classes
225: init_methoded_array(pool);
1.10 paf 226: // init global variables
1.37 paf 227: pa_globals_init(pool);
1.10 paf 228:
1.13 paf 229: if(!filespec_to_process)
230: PTHROW(0, 0,
231: 0,
1.68 paf 232: "Parser/%s", PARSER_VERSION);
1.13 paf 233:
1.10 paf 234: // Request info
235: Request::Info request_info;
1.39 paf 236: if(cgi) {
1.51 paf 237: if(const char *env_document_root=SAPI::get_env(pool, "DOCUMENT_ROOT"))
1.39 paf 238: request_info.document_root=env_document_root;
1.51 paf 239: else if(const char *path_info=SAPI::get_env(pool, "PATH_INFO")) {
1.40 paf 240: // IIS
1.39 paf 241: size_t len=strlen(filespec_to_process)-strlen(path_info);
1.40 paf 242: char *buf=(char *)pool.malloc(len+1);
1.98 parser 243: memcpy(buf, filespec_to_process, len); buf[len]=0;
1.39 paf 244: request_info.document_root=buf;
245: } else
246: PTHROW(0, 0,
247: 0,
1.43 paf 248: "CGI: no PATH_INFO defined(in reinventing DOCUMENT_ROOT)");
1.39 paf 249: } else {
250: static char buf[MAX_STRING];
1.98 parser 251: strncpy(buf, filespec_to_process, MAX_STRING-1); buf[MAX_STRING-1]=0;
1.70 paf 252: if(rsplit(buf, '/') || rsplit(buf, '\\')) // strip filename
253: request_info.document_root=buf;
254: else
255: request_info.document_root="";
1.13 paf 256: }
1.10 paf 257: request_info.path_translated=filespec_to_process;
1.107 parser 258: request_info.method=request_method ? request_method : "GET";
1.51 paf 259: const char *query_string=SAPI::get_env(pool, "QUERY_STRING");
1.40 paf 260: request_info.query_string=query_string;
1.68 paf 261: if(cgi) {
1.51 paf 262: if(const char *env_request_uri=SAPI::get_env(pool, "REQUEST_URI"))
1.42 paf 263: request_info.uri=env_request_uri;
1.51 paf 264: else if(const char *path_info=SAPI::get_env(pool, "PATH_INFO"))
1.42 paf 265: if(query_string) {
266: char *reconstructed_uri=(char *)malloc(
267: strlen(path_info)+1/*'?'*/+
268: strlen(query_string)+1/*0*/);
269: strcpy(reconstructed_uri, path_info);
270: strcat(reconstructed_uri, "?");
271: strcat(reconstructed_uri, query_string);
272: request_info.uri=reconstructed_uri;
273: } else
274: request_info.uri=path_info;
275: else
276: PTHROW(0, 0,
277: 0,
1.43 paf 278: "CGI: no PATH_INFO defined(in reinventing REQUEST_URI)");
1.68 paf 279:
1.72 paf 280: if(const char *script_name=SAPI::get_env(pool, "SCRIPT_NAME")) {
281: size_t script_name_len=strlen(script_name);
282: size_t uri_len=strlen(request_info.uri);
283: if(strncmp(request_info.uri,script_name, script_name_len)==0 &&
284: script_name_len != uri_len) // under IIS they are the same
285: PTHROW(0, 0,
286: 0,
287: "CGI: illegal call");
288: }
1.68 paf 289: } else
1.42 paf 290: request_info.uri=0;
1.40 paf 291:
1.51 paf 292: request_info.content_type=SAPI::get_env(pool, "CONTENT_TYPE");
293: const char *content_length=SAPI::get_env(pool, "CONTENT_LENGTH");
1.10 paf 294: request_info.content_length=(content_length?atoi(content_length):0);
1.51 paf 295: request_info.cookie=SAPI::get_env(pool, "HTTP_COOKIE");
296: request_info.user_agent=SAPI::get_env(pool, "HTTP_USER_AGENT");
1.10 paf 297:
1.5 paf 298: // prepare to process request
1.38 paf 299: Request request(pool,
1.10 paf 300: request_info,
1.91 parser 301: cgi ? String::UL_USER_HTML : String::UL_AS_IS
1.5 paf 302: );
303:
304: // some root-controlled location
1.102 parser 305: #ifdef SYSCONFDIR
1.111 parser 306: const char *root_config_filespec=SYSCONFDIR "/" CONFIG_FILE_NAME;
1.102 parser 307: #else
308: # ifdef WIN32
1.10 paf 309: // c:\windows
1.111 parser 310: char root_config_path[MAX_STRING];
311: GetWindowsDirectory(root_config_path, MAX_STRING);
312:
313: char root_config_filespec[MAX_STRING];
314: snprintf(root_config_filespec, MAX_STRING,
315: "%s/%s",
316: root_config_path, CONFIG_FILE_NAME);
1.101 parser 317: # else
1.102 parser 318: #error must be compiled either configure/make or MSVC++
1.101 parser 319: # endif
1.5 paf 320: #endif
321:
322: // beside by binary
1.111 parser 323: // @todo full path, not ./!
324: static char site_config_path[MAX_STRING];
325: strncpy(site_config_path, argv0, MAX_STRING-1); site_config_path[MAX_STRING-1]=0; // filespec of my binary
1.88 parser 326: if(!(
1.111 parser 327: rsplit(site_config_path, '/') ||
328: rsplit(site_config_path, '\\'))) { // strip filename
1.88 parser 329: // no path, just filename
1.111 parser 330: site_config_path[0]='.'; site_config_path[1]=0;
1.88 parser 331: }
1.111 parser 332:
333: char site_config_filespec[MAX_STRING];
334: snprintf(site_config_filespec, MAX_STRING,
335: "%s/%s",
336: site_config_path, CONFIG_FILE_NAME);
1.5 paf 337:
338: // process the request
1.35 paf 339: request.core(
1.111 parser 340: root_config_filespec, false,
341: site_config_filespec, false,
1.35 paf 342: header_only);
1.57 paf 343:
344: //
345: done_socks();
1.84 parser 346:
347: #ifdef DEBUG_POOL_MALLOC
1.78 parser 348: extern void log_pool_stats(Pool& pool);
349: log_pool_stats(pool);
1.84 parser 350: #endif
1.16 paf 351:
1.22 paf 352: // must be last in PTRY{}PCATCH
1.40 paf 353: #ifdef WIN32
1.5 paf 354: SetUnhandledExceptionFilter(0);
1.25 paf 355: #endif
1.100 parser 356:
1.16 paf 357: // successful finish
1.109 parser 358: result=0;
1.16 paf 359: } PCATCH(e) { // global problem
1.43 paf 360: // must be first in PCATCH{}
361: #ifdef WIN32
362: SetUnhandledExceptionFilter(0);
363: #endif
1.44 paf 364: // don't allocate anything on pool here:
365: // possible pool' exception not catch-ed now
366: // and there could be out-of-memory exception
1.43 paf 367:
1.19 paf 368: const char *body=e.comment();
1.44 paf 369: // log it
370: SAPI::log(pool, "exception in request exception handler: %s", body);
371:
372: //
1.19 paf 373: int content_length=strlen(body);
1.5 paf 374:
1.35 paf 375: // prepare header
1.37 paf 376: SAPI::add_header_attribute(pool, "content-type", "text/plain");
1.19 paf 377: char content_length_cstr[MAX_NUMBER];
1.60 paf 378: snprintf(content_length_cstr, MAX_NUMBER, "%u", content_length);
1.37 paf 379: SAPI::add_header_attribute(pool, "content-length", content_length_cstr);
1.35 paf 380:
381: // send header
1.37 paf 382: SAPI::send_header(pool);
1.19 paf 383:
384: // body
1.35 paf 385: if(!header_only)
1.37 paf 386: SAPI::send_body(pool, body, content_length);
1.94 parser 387:
1.16 paf 388: // unsuccessful finish
1.109 parser 389: result=1;
1.16 paf 390: }
391: PEND_CATCH
1.109 parser 392:
393: #ifndef WIN32
394: //
395: if(!cgi)
396: SAPI::send_body(pool, "\n", 1);
397: #endif
398: return result;
1.1 paf 399: }
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