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comparison src/http/ngx_http_parse.c @ 580:4d3e880ce86c NGINX_0_8_42

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nginx 0.8.42 *) Change: now nginx tests locations given by regular expressions, if request was matched exactly by a location given by a prefix string. The previous behavior has been introduced in 0.7.1. *) Feature: the ngx_http_scgi_module. Thanks to Manlio Perillo. *) Feature: a text answer may be added to a "return" directive.
author Igor Sysoev <http://sysoev.ru>
date Mon, 21 Jun 2010 00:00:00 +0400
parents bc110f60c0de
children c456a023113c
comparison
equal deleted inserted replaced
579:c570633043e7 580:4d3e880ce86c
1316 return NGX_OK; 1316 return NGX_OK;
1317 } 1317 }
1318 1318
1319 1319
1320 ngx_int_t 1320 ngx_int_t
1321 ngx_http_parse_status_line(ngx_http_request_t *r, ngx_buf_t *b,
1322 ngx_http_status_t *status)
1323 {
1324 u_char ch;
1325 u_char *p;
1326 enum {
1327 sw_start = 0,
1328 sw_H,
1329 sw_HT,
1330 sw_HTT,
1331 sw_HTTP,
1332 sw_first_major_digit,
1333 sw_major_digit,
1334 sw_first_minor_digit,
1335 sw_minor_digit,
1336 sw_status,
1337 sw_space_after_status,
1338 sw_status_text,
1339 sw_almost_done
1340 } state;
1341
1342 state = r->state;
1343
1344 for (p = b->pos; p < b->last; p++) {
1345 ch = *p;
1346
1347 switch (state) {
1348
1349 /* "HTTP/" */
1350 case sw_start:
1351 switch (ch) {
1352 case 'H':
1353 state = sw_H;
1354 break;
1355 default:
1356 return NGX_ERROR;
1357 }
1358 break;
1359
1360 case sw_H:
1361 switch (ch) {
1362 case 'T':
1363 state = sw_HT;
1364 break;
1365 default:
1366 return NGX_ERROR;
1367 }
1368 break;
1369
1370 case sw_HT:
1371 switch (ch) {
1372 case 'T':
1373 state = sw_HTT;
1374 break;
1375 default:
1376 return NGX_ERROR;
1377 }
1378 break;
1379
1380 case sw_HTT:
1381 switch (ch) {
1382 case 'P':
1383 state = sw_HTTP;
1384 break;
1385 default:
1386 return NGX_ERROR;
1387 }
1388 break;
1389
1390 case sw_HTTP:
1391 switch (ch) {
1392 case '/':
1393 state = sw_first_major_digit;
1394 break;
1395 default:
1396 return NGX_ERROR;
1397 }
1398 break;
1399
1400 /* the first digit of major HTTP version */
1401 case sw_first_major_digit:
1402 if (ch < '1' || ch > '9') {
1403 return NGX_ERROR;
1404 }
1405
1406 state = sw_major_digit;
1407 break;
1408
1409 /* the major HTTP version or dot */
1410 case sw_major_digit:
1411 if (ch == '.') {
1412 state = sw_first_minor_digit;
1413 break;
1414 }
1415
1416 if (ch < '0' || ch > '9') {
1417 return NGX_ERROR;
1418 }
1419
1420 break;
1421
1422 /* the first digit of minor HTTP version */
1423 case sw_first_minor_digit:
1424 if (ch < '0' || ch > '9') {
1425 return NGX_ERROR;
1426 }
1427
1428 state = sw_minor_digit;
1429 break;
1430
1431 /* the minor HTTP version or the end of the request line */
1432 case sw_minor_digit:
1433 if (ch == ' ') {
1434 state = sw_status;
1435 break;
1436 }
1437
1438 if (ch < '0' || ch > '9') {
1439 return NGX_ERROR;
1440 }
1441
1442 break;
1443
1444 /* HTTP status code */
1445 case sw_status:
1446 if (ch == ' ') {
1447 break;
1448 }
1449
1450 if (ch < '0' || ch > '9') {
1451 return NGX_ERROR;
1452 }
1453
1454 status->code = status->code * 10 + ch - '0';
1455
1456 if (++status->count == 3) {
1457 state = sw_space_after_status;
1458 status->start = p - 2;
1459 }
1460
1461 break;
1462
1463 /* space or end of line */
1464 case sw_space_after_status:
1465 switch (ch) {
1466 case ' ':
1467 state = sw_status_text;
1468 break;
1469 case '.': /* IIS may send 403.1, 403.2, etc */
1470 state = sw_status_text;
1471 break;
1472 case CR:
1473 state = sw_almost_done;
1474 break;
1475 case LF:
1476 goto done;
1477 default:
1478 return NGX_ERROR;
1479 }
1480 break;
1481
1482 /* any text until end of line */
1483 case sw_status_text:
1484 switch (ch) {
1485 case CR:
1486 state = sw_almost_done;
1487
1488 break;
1489 case LF:
1490 goto done;
1491 }
1492 break;
1493
1494 /* end of status line */
1495 case sw_almost_done:
1496 status->end = p - 1;
1497 switch (ch) {
1498 case LF:
1499 goto done;
1500 default:
1501 return NGX_ERROR;
1502 }
1503 }
1504 }
1505
1506 b->pos = p;
1507 r->state = state;
1508
1509 return NGX_AGAIN;
1510
1511 done:
1512
1513 b->pos = p + 1;
1514
1515 if (status->end == NULL) {
1516 status->end = p;
1517 }
1518
1519 r->state = sw_start;
1520
1521 return NGX_OK;
1522 }
1523
1524
1525 ngx_int_t
1321 ngx_http_parse_unsafe_uri(ngx_http_request_t *r, ngx_str_t *uri, 1526 ngx_http_parse_unsafe_uri(ngx_http_request_t *r, ngx_str_t *uri,
1322 ngx_str_t *args, ngx_uint_t *flags) 1527 ngx_str_t *args, ngx_uint_t *flags)
1323 { 1528 {
1324 u_char ch, *p; 1529 u_char ch, *p;
1325 size_t len; 1530 size_t len;