Annotation of libwww/Library/src/HTTP.c, revision 1.168
1.74 frystyk 1: /* HTTP.c
2: ** MULTITHREADED IMPLEMENTATION OF HTTP CLIENT
1.2 timbl 3: **
1.84 frystyk 4: ** (c) COPYRIGHT MIT 1995.
1.74 frystyk 5: ** Please first read the full copyright statement in the file COPYRIGH.
1.168 ! frystyk 6: ** @(#) $Id: HTTP.c,v 1.167 1998年10月20日 13:20:45 frystyk Exp $
1.74 frystyk 7: **
8: ** This module implments the HTTP protocol as a state machine
1.55 frystyk 9: **
10: ** History:
1.59 frystyk 11: ** < May 24 94 ?? Unknown - but obviously written
1.56 frystyk 12: ** May 24 94 HF Made reentrent and cleaned up a bit. Implemented
13: ** Forward, redirection, error handling and referer field
1.67 duns 14: ** 8 Jul 94 FM Insulate free() from _free structure element.
1.71 frystyk 15: ** Jul 94 HFN Written on top of HTTP.c, Henrik Frystyk
1.55 frystyk 16: **
1.1 timbl 17: */
18:
1.78 frystyk 19: /* Library include files */
1.161 frystyk 20: #include "wwwsys.h"
1.123 frystyk 21: #include "WWWUtil.h"
22: #include "WWWCore.h"
23: #include "WWWMIME.h"
24: #include "WWWStream.h"
1.125 frystyk 25: #include "WWWTrans.h"
1.94 frystyk 26: #include "HTReqMan.h"
1.109 frystyk 27: #include "HTTPUtil.h"
1.80 frystyk 28: #include "HTTPReq.h"
1.55 frystyk 29: #include "HTTP.h" /* Implements */
30:
31: /* Macros and other defines */
1.94 frystyk 32: #ifndef HTTP_PORT
33: #define HTTP_PORT 80 /* Allocated to http by Jon Postel/ISI 24-Jan-92 */
34: #endif
35:
1.71 frystyk 36: #define PUTC(c) (*me->target->isa->put_character)(me->target, c)
37: #define PUTS(s) (*me->target->isa->put_string)(me->target, s)
38: #define PUTBLOCK(b, l) (*me->target->isa->put_block)(me->target, b, l)
39: #define FREE_TARGET (*me->target->isa->_free)(me->target)
1.74 frystyk 40: #define ABORT_TARGET (*me->target->isa->abort)(me->target, e)
1.2 timbl 41:
1.140 frystyk 42: #define HTTP_DUMP
43: #ifdef HTTP_DUMP
1.147 frystyk 44: #define HTTP_OUTPUT "w3chttp.out"
1.162 frystyk 45: PRIVATE FILE * htfp = NULL;
1.140 frystyk 46: #endif
1.139 frystyk 47:
1.59 frystyk 48: /* Type definitions and global variables etc. local to this module */
1.94 frystyk 49:
50: /* Final states have negative value */
1.59 frystyk 51: typedef enum _HTTPState {
1.167 frystyk 52: HTTP_KILL_PIPE = -4,
1.141 frystyk 53: HTTP_RECOVER_PIPE = -3,
1.134 frystyk 54: HTTP_ERROR = -2,
55: HTTP_OK = -1,
1.71 frystyk 56: HTTP_BEGIN = 0,
1.144 frystyk 57: HTTP_NEED_STREAM,
1.141 frystyk 58: HTTP_CONNECTED
1.59 frystyk 59: } HTTPState;
1.55 frystyk 60:
1.94 frystyk 61: /* This is the context structure for the this module */
1.55 frystyk 62: typedef struct _http_info {
1.81 frystyk 63: HTTPState state; /* Current State of the connection */
64: HTTPState next; /* Next state */
1.134 frystyk 65: int result; /* Result to report to the after filter */
1.139 frystyk 66: BOOL lock; /* Block for writing */
1.141 frystyk 67: HTNet * net;
1.157 frystyk 68: HTRequest * request;
69: HTTimer * timer;
1.165 frystyk 70: BOOL usedTimer;
1.55 frystyk 71: } http_info;
72:
1.88 frystyk 73: #define MAX_STATUS_LEN 100 /* Max nb of chars to check StatusLine */
1.55 frystyk 74:
1.71 frystyk 75: struct _HTStream {
1.119 frystyk 76: const HTStreamClass * isa;
1.71 frystyk 77: HTStream * target;
1.157 frystyk 78: HTStream * info_target; /* For 100 codes */
1.71 frystyk 79: HTRequest * request;
80: http_info * http;
1.121 frystyk 81: HTEOLState state;
1.71 frystyk 82: BOOL transparent;
1.150 frystyk 83: BOOL cont;
1.81 frystyk 84: char * version; /* Should we save this? */
1.71 frystyk 85: int status;
1.81 frystyk 86: char * reason;
1.71 frystyk 87: char buffer[MAX_STATUS_LEN+1];
1.80 frystyk 88: int buflen;
1.146 frystyk 89: int startLen;/* buflen when put_block was called */
1.71 frystyk 90: };
1.21 luotonen 91:
1.123 frystyk 92: struct _HTInputStream {
93: const HTInputStreamClass * isa;
94: };
95:
1.147 frystyk 96: #ifdef HT_NO_PIPELINING
1.156 frystyk 97: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_NO_PIPELINING;
1.147 frystyk 98: #else
1.156 frystyk 99: #ifdef HT_MUX
100: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_MUX;
101: #else
102: #ifdef HT_FORCE_10
103: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_FORCE_10;
104: #else
105: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_PIPELINING;
106: #endif
107: #endif
1.147 frystyk 108: #endif
109:
1.71 frystyk 110: /* ------------------------------------------------------------------------- */
111: /* Help Functions */
112: /* ------------------------------------------------------------------------- */
1.21 luotonen 113:
1.94 frystyk 114: /* HTTPCleanup
115: ** -----------
1.55 frystyk 116: ** This function closes the connection and frees memory.
1.94 frystyk 117: ** Returns YES on OK, else NO
1.1 timbl 118: */
1.94 frystyk 119: PRIVATE int HTTPCleanup (HTRequest *req, int status)
1.1 timbl 120: {
1.126 frystyk 121: HTNet * net = HTRequest_net(req);
122: http_info * http = (http_info *) HTNet_context(net);
123: HTStream * input = HTRequest_inputStream(req);
1.80 frystyk 124:
1.144 frystyk 125: if (PROT_TRACE)
126: HTTrace("HTTP Clean.. Called with status %d, net %p\n", status, net);
127:
1.164 frystyk 128: if (status == HT_INTERRUPTED) {
129: HTAlertCallback * cbf = HTAlert_find(HT_PROG_INTERRUPT);
130: if (cbf) (*cbf)(req, HT_PROG_INTERRUPT,
131: HT_MSG_NULL, NULL, NULL, NULL);
1.166 frystyk 132: } else if (status == HT_TIMEOUT) {
133: HTAlertCallback * cbf = HTAlert_find(HT_PROG_TIMEOUT);
134: if (cbf) (*cbf)(req, HT_PROG_TIMEOUT,
135: HT_MSG_NULL, NULL, NULL, NULL);
1.164 frystyk 136: }
1.166 frystyk 137:
1.94 frystyk 138: /* Free stream with data TO network */
1.167 frystyk 139: if (input) {
1.166 frystyk 140: if (status==HT_INTERRUPTED || status==HT_RECOVER_PIPE || status==HT_TIMEOUT)
1.126 frystyk 141: (*input->isa->abort)(input, NULL);
1.94 frystyk 142: else
1.126 frystyk 143: (*input->isa->_free)(input);
144: HTRequest_setInputStream(req, NULL);
1.94 frystyk 145: }
1.88 frystyk 146:
1.144 frystyk 147: /*
1.157 frystyk 148: ** Remove if we have registered an upload function as a callback
149: */
150: if (http->timer) {
151: HTTimer_delete(http->timer);
152: http->timer = NULL;
153: }
154:
155: /*
1.144 frystyk 156: ** Remove the request object and our own context structure for http.
157: */
158: if (status != HT_RECOVER_PIPE) {
1.153 frystyk 159: HTNet_delete(net, status);
1.141 frystyk 160: HT_FREE(http);
161: }
1.94 frystyk 162: return YES;
1.55 frystyk 163: }
164:
1.71 frystyk 165: /*
1.130 frystyk 166: ** Informational 1xx codes are handled separately
1.136 frystyk 167: ** Returns YES if we should continue, NO if we should stop
1.55 frystyk 168: */
1.130 frystyk 169: PRIVATE BOOL HTTPInformation (HTStream * me)
1.55 frystyk 170: {
1.136 frystyk 171: http_info * http = me->http;
1.71 frystyk 172: switch (me->status) {
173:
1.136 frystyk 174: case 100:
1.161 frystyk 175: #if 0
1.136 frystyk 176: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CONTINUE,
177: me->reason, (int) strlen(me->reason),
178: "HTTPInformation");
1.161 frystyk 179: #endif
1.136 frystyk 180: return YES;
181: break;
182:
1.130 frystyk 183: case 101:
1.136 frystyk 184: /*
185: ** We consider 101 Switching as a final state and exit this request
186: */
1.130 frystyk 187: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_SWITCHING,
1.127 frystyk 188: me->reason, (int) strlen(me->reason),
1.130 frystyk 189: "HTTPInformation");
1.136 frystyk 190: http->next = HTTP_OK;
191: http->result = HT_UPGRADE;
1.127 frystyk 192: break;
193:
1.130 frystyk 194: default:
1.136 frystyk 195: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
196: (void *) me->buffer, me->buflen, "HTTPNextState");
197: http->next = HTTP_ERROR;
198: http->result = HT_ERROR;
1.127 frystyk 199: break;
1.130 frystyk 200: }
1.136 frystyk 201: return NO;
1.130 frystyk 202: }
203:
1.158 frystyk 204:
205:
1.130 frystyk 206: /*
207: ** This is a big switch handling all HTTP return codes. It puts in any
208: ** appropiate error message and decides whether we should expect data
209: ** or not.
210: */
211: PRIVATE void HTTPNextState (HTStream * me)
212: {
1.134 frystyk 213: http_info * http = me->http;
1.158 frystyk 214: int error_class = me->status / 100;
215: switch (error_class) {
1.127 frystyk 216:
1.158 frystyk 217: case 0: /* 0.9 response */
218: case 2:
1.112 frystyk 219:
1.158 frystyk 220: switch (me->status) {
1.112 frystyk 221:
1.158 frystyk 222: case 201: /* Created */
223: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CREATED,
224: me->reason, (int) strlen(me->reason),
225: "HTTPNextState");
226: http->next = HTTP_OK;
227: http->result = HT_CREATED;
228: break;
229:
230: case 202: /* Accepted */
231: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_ACCEPTED,
232: me->reason, (int) strlen(me->reason),
233: "HTTPNextState");
234: http->next = HTTP_OK;
235: http->result = HT_ACCEPTED;
236: break;
237:
238: case 203: /* Non-authoritative information */
239: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NON_AUTHORITATIVE,
240: me->reason, (int) strlen(me->reason),
241: "HTTPNextState");
242: http->next = HTTP_OK;
243: http->result = HT_LOADED;
244: break;
245:
246: case 204: /* No Response */
247: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NO_CONTENT,
248: me->reason, (int) strlen(me->reason),
249: "HTTPNextState");
250: http->next = HTTP_OK;
251: http->result = HT_NO_DATA;
252: break;
253:
254: case 205: /* Reset Content */
255: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_RESET,
256: me->reason, (int) strlen(me->reason),
257: "HTTPNextState");
258: http->next = HTTP_OK;
259: http->result = HT_RESET_CONTENT;
260: break;
261:
262: case 206: /* Partial Content */
263: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL,
264: me->reason, (int) strlen(me->reason),
265: "HTTPNextState");
266: http->next = HTTP_OK;
267: http->result = HT_PARTIAL_CONTENT;
268: break;
269:
270: case 207: /* Partial Update OK */
271: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL_OK,
272: me->reason, (int) strlen(me->reason),
273: "HTTPNextState");
274: http->next = HTTP_OK;
275: http->result = HT_PARTIAL_CONTENT;
276: break;
277:
278: default:
279: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_OK,
280: me->reason, (int) strlen(me->reason),
281: "HTTPNextState");
282: http->next = HTTP_OK;
283: http->result = HT_LOADED;
284: break;
285: }
1.134 frystyk 286: break;
287:
1.158 frystyk 288: case 3:
1.134 frystyk 289:
1.158 frystyk 290: switch (me->status) {
1.78 frystyk 291:
1.158 frystyk 292: case 301: /* Moved */
293: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MOVED,
294: me->reason, (int) strlen(me->reason),
295: "HTTPNextState");
296: http->next = HTTP_ERROR;
297: http->result = HT_PERM_REDIRECT;
298: break;
299:
300: case 302: /* Found */
301: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_FOUND,
302: me->reason, (int) strlen(me->reason),
303: "HTTPNextState");
304: http->next = HTTP_ERROR;
305: http->result = HT_FOUND;
306: break;
1.55 frystyk 307:
1.158 frystyk 308: case 303: /* Method */
309: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_METHOD,
310: me->reason, (int) strlen(me->reason),
311: "HTTPNextState");
312: http->next = HTTP_ERROR;
313: http->result = HT_SEE_OTHER;
314: break;
315:
316: case 304: /* Not Modified */
317: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NOT_MODIFIED,
318: me->reason, (int) strlen(me->reason),
319: "HTTPNextState");
320: http->next = HTTP_OK;
321: http->result = HT_NOT_MODIFIED;
322: break;
1.134 frystyk 323:
1.158 frystyk 324: case 305: /* Use proxy */
325: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_USE_PROXY,
326: me->reason, (int) strlen(me->reason),
327: "HTTPNextState");
328: http->next = HTTP_ERROR;
329: http->result = HT_USE_PROXY;
330: break;
1.55 frystyk 331:
1.152 frystyk 332: #if 0
1.158 frystyk 333: case 306: /* Use proxy */
334: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PROXY_REDIRECT,
335: me->reason, (int) strlen(me->reason),
336: "HTTPNextState");
337: http->next = HTTP_ERROR;
338: http->result = HT_USE_PROXY;
339: break;
1.152 frystyk 340: #endif
341:
1.158 frystyk 342: case 307: /* Use proxy */
343: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_TEMP_REDIRECT,
344: me->reason, (int) strlen(me->reason),
345: "HTTPNextState");
346: http->next = HTTP_ERROR;
347: http->result = HT_TEMP_REDIRECT;
348: break;
349:
350: default:
351: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MULTIPLE,
352: me->reason, (int) strlen(me->reason),
353: "HTTPNextState");
354: http->next = HTTP_OK;
355: http->result = HT_LOADED;
356: break;
357: }
358: break;
359:
360: case 4:
361:
362: switch (me->status) {
363: case 401:
364: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNAUTHORIZED,
365: me->reason, (int) strlen(me->reason), "HTTPNextState");
366: http->next = HTTP_ERROR;
367: http->result = HT_NO_ACCESS;
368: break;
1.152 frystyk 369:
1.158 frystyk 370: case 402: /* Payment required */
371: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PAYMENT_REQUIRED,
372: me->reason, (int) strlen(me->reason), "HTTPNextState");
373: http->next = HTTP_ERROR;
374: http->result = -402;
375: break;
1.71 frystyk 376:
1.158 frystyk 377: case 403: /* Forbidden */
378: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_FORBIDDEN,
379: me->reason, (int) strlen(me->reason), "HTTPNextState");
380: http->next = HTTP_ERROR;
381: http->result = HT_FORBIDDEN;
382: break;
1.55 frystyk 383:
1.158 frystyk 384: case 404: /* Not Found */
385: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_FOUND,
386: me->reason, (int) strlen(me->reason), "HTTPNextState");
387: http->next = HTTP_ERROR;
388: http->result = -404;
389: break;
1.55 frystyk 390:
1.158 frystyk 391: case 405: /* Not Allowed */
392: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_ALLOWED,
393: me->reason, (int) strlen(me->reason), "HTTPNextState");
394: http->next = HTTP_ERROR;
395: http->result = -405;
396: break;
397:
398: case 406: /* None Acceptable */
399: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NONE_ACCEPTABLE,
400: me->reason, (int) strlen(me->reason), "HTTPNextState");
401: http->next = HTTP_ERROR;
402: http->result = HT_NOT_ACCEPTABLE;
403: break;
404:
405: case 407: /* Proxy Authentication Required */
406: HTRequest_addError(me->request, ERR_FATAL, NO,HTERR_PROXY_UNAUTHORIZED,
407: me->reason, (int) strlen(me->reason), "HTTPNextState");
408: http->next = HTTP_ERROR;
409: http->result = HT_NO_PROXY_ACCESS;
410: break;
411:
412: case 408: /* Request Timeout */
413: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TIMEOUT,
414: me->reason, (int) strlen(me->reason), "HTTPNextState");
415: http->next = HTTP_ERROR;
416: http->result = -408;
417: break;
418:
419: case 409: /* Conflict */
420: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_CONFLICT,
421: me->reason, (int) strlen(me->reason), "HTTPNextState");
422: http->next = HTTP_ERROR;
423: http->result = HT_CONFLICT;
424: break;
425:
426: case 410: /* Gone */
427: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GONE,
428: me->reason, (int) strlen(me->reason), "HTTPNextState");
429: http->next = HTTP_ERROR;
430: http->result = -410;
431: break;
432:
433: case 411: /* Length Required */
434: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_LENGTH_REQUIRED,
435: me->reason, (int) strlen(me->reason), "HTTPNextState");
436: http->next = HTTP_ERROR;
437: http->result = HT_LENGTH_REQUIRED;
438: break;
439:
440: case 412: /* Precondition failed */
441: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PRECON_FAILED,
442: me->reason, (int) strlen(me->reason), "HTTPNextState");
443: http->next = HTTP_ERROR;
444: http->result = -412;
445: break;
446:
447: case 413: /* Request entity too large */
448: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TOO_BIG,
449: me->reason, (int) strlen(me->reason), "HTTPNextState");
450: http->next = HTTP_ERROR;
451: http->result = -413;
452: break;
453:
454: case 414: /* Request-URI too long */
455: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_URI_TOO_BIG,
456: me->reason, (int) strlen(me->reason), "HTTPNextState");
457: http->next = HTTP_ERROR;
458: http->result = -414;
459: break;
460:
461: case 415: /* Unsupported */
462: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNSUPPORTED,
463: me->reason, (int) strlen(me->reason), "HTTPNextState");
464: http->next = HTTP_ERROR;
465: http->result = -415;
466: break;
467:
468: case 416: /* Request Range not satisfiable */
469: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_RANGE,
470: me->reason, (int) strlen(me->reason), "HTTPNextState");
471: http->next = HTTP_ERROR;
472: http->result = -416;
473: break;
474:
475: case 417: /* Expectation Failed */
476: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_EXPECTATION_FAILED,
477: me->reason, (int) strlen(me->reason), "HTTPNextState");
478: http->next = HTTP_ERROR;
479: http->result = -417;
480: break;
481:
482: case 418: /* Reauthentication required */
483: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_REAUTH,
484: me->reason, (int) strlen(me->reason), "HTTPNextState");
485: http->next = HTTP_ERROR;
486: http->result = -418;
487: break;
488:
489: case 419: /* Proxy Reauthentication required */
490: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PROXY_REAUTH,
491: me->reason, (int) strlen(me->reason), "HTTPNextState");
492: http->next = HTTP_ERROR;
493: http->result = -419;
494: break;
495:
496: default:
497: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REQUEST,
498: me->reason, (int) strlen(me->reason), "HTTPNextState");
499: http->next = HTTP_ERROR;
500: http->result = -400;
501: break;
502: }
1.134 frystyk 503: break;
504:
1.158 frystyk 505: case 5:
1.134 frystyk 506:
1.158 frystyk 507: switch (me->status) {
508: case 501:
509: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_IMPLEMENTED,
510: me->reason, (int) strlen(me->reason), "HTTPNextState");
511: http->next = HTTP_ERROR;
512: http->result = -501;
513: break;
514:
515: case 502:
516: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_GATE,
517: me->reason, (int) strlen(me->reason), "HTTPNextState");
518: http->next = HTTP_ERROR;
519: http->result = -502;
520: break;
521:
522: case 503:
523: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_DOWN,
524: me->reason, (int) strlen(me->reason), "HTTPNextState");
525: http->next = HTTP_ERROR;
526:
527: /*
528: ** If Retry-After header is found then return HT_RETRY else HT_ERROR.
529: ** The caller may want to reissue the request at a later point in time.
530: */
531: {
532: HTResponse * response = HTRequest_response(me->request);
533: if (HTResponse_retryTime(response))
534: http->result = HT_RETRY;
535: else
536: http->result = -500;
537: }
538: break;
539:
540: case 504:
541: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GATE_TIMEOUT,
542: me->reason, (int) strlen(me->reason), "HTTPNextState");
543: http->next = HTTP_ERROR;
544: http->result = -504;
545: break;
546:
547: case 505: /* Unsupported protocol version */
548: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_VERSION,
549: me->reason, (int) strlen(me->reason), "HTTPNextState");
550: http->next = HTTP_ERROR;
551: http->result = HT_BAD_VERSION;
552: break;
553:
554: case 506: /* Partial update Not Implemented */
555: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NO_PARTIAL_UPDATE,
556: me->reason, (int) strlen(me->reason), "HTTPNextState");
557: http->next = HTTP_ERROR;
558: http->result = HT_BAD_VERSION;
559: break;
560:
561: default: /* bad number */
562: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_INTERNAL,
563: me->reason, (int) strlen(me->reason), "HTTPNextState");
564: http->next = HTTP_ERROR;
565: http->result = -500;
566: break;
1.140 frystyk 567: }
1.78 frystyk 568: break;
569:
1.158 frystyk 570: default:
1.104 frystyk 571: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
1.158 frystyk 572: (void *) me->buffer, me->buflen, "HTTPNextState");
1.134 frystyk 573: http->next = HTTP_ERROR;
1.155 frystyk 574: http->result = -(me->status);
1.71 frystyk 575: break;
1.55 frystyk 576: }
577: }
578:
1.71 frystyk 579: /* ------------------------------------------------------------------------- */
580: /* HTTP Status Line Stream */
581: /* ------------------------------------------------------------------------- */
1.55 frystyk 582:
1.71 frystyk 583: /*
1.141 frystyk 584: ** Analyze the stream we have read. If it is a HTTP 1.0 or higher
1.71 frystyk 585: ** then create a MIME-stream, else create a Guess stream to find out
586: ** what the 0.9 server is sending. We need to copy the buffer as we don't
587: ** know if we can modify the contents or not.
1.78 frystyk 588: **
589: ** Stream handling is a function of the status code returned from the
590: ** server:
591: ** 200: Use `output_stream' in HTRequest structure
1.94 frystyk 592: ** else: Use `debug_stream' in HTRequest structure
1.80 frystyk 593: **
594: ** Return: YES if buffer should be written out. NO otherwise
1.56 frystyk 595: */
1.157 frystyk 596: PRIVATE int stream_pipe (HTStream * me, int length)
1.56 frystyk 597: {
1.136 frystyk 598: HTRequest * request = me->request;
599: HTNet * net = HTRequest_net(request);
1.123 frystyk 600: HTHost * host = HTNet_host(net);
1.141 frystyk 601:
1.153 frystyk 602: #if 0
603: {
604: char * uri = HTAnchor_address((HTAnchor *) HTRequest_anchor(request));
605: fprintf(stderr, "HTTP header: %s for '%s'\n", me->buffer, uri);
606: HT_FREE(uri);
607: }
608: #endif
609:
1.132 frystyk 610: /*
611: ** Just check for HTTP and not HTTP/ as NCSA server chokes on 1.1 replies
612: ** Thanks to Markku Savela <msa@msa.tte.vtt.fi>
1.141 frystyk 613:
1.132 frystyk 614: */
615: if (strncasecomp(me->buffer, "http", 4)) {
1.80 frystyk 616: int status;
1.136 frystyk 617: HTRequest_addError(request, ERR_INFO, NO, HTERR_HTTP09,
1.80 frystyk 618: (void *) me->buffer, me->buflen, "HTTPStatusStream");
1.136 frystyk 619: me->target = HTStreamStack(WWW_UNKNOWN,
620: HTRequest_outputFormat(request),
621: HTRequest_outputStream(request),
622: request, NO);
1.134 frystyk 623: me->http->next = HTTP_OK;
1.80 frystyk 624: if ((status = PUTBLOCK(me->buffer, me->buflen)) == HT_OK)
625: me->transparent = YES;
1.123 frystyk 626: HTHost_setVersion(host, HTTP_09);
1.157 frystyk 627: if (length > 0) HTHost_setConsumed(host, length);
1.80 frystyk 628: return status;
629: } else {
1.140 frystyk 630: HTResponse * response = HTRequest_response(request);
1.155 frystyk 631: char * ptr = me->buffer+5; /* Skip the HTTP part */
632: char * vptr = NULL;
633: int major = 0;
634: int minor = 0;
635: me->version = vptr = HTNextField(&ptr);
636: if (vptr) {
637: major = (int) strtol(me->version, &vptr, 10);
638: if (vptr++) minor = strtol(vptr, NULL, 10);
639: }
1.95 frystyk 640:
1.130 frystyk 641: /* Here we want to find out when to use persistent connection */
1.155 frystyk 642: if (major > 1) {
643: if (PROT_TRACE)HTTrace("HTTP Status. Major version number is %d\n", major);
644: me->target = HTErrorStream();
1.158 frystyk 645: me->status = 9999;
1.155 frystyk 646: HTTPNextState(me); /* Get next state */
1.158 frystyk 647: return HT_ERROR;
1.155 frystyk 648: } else if (minor <= 0) {
649: if (PROT_TRACE)HTTrace("HTTP Status. This is an HTTP/1.0 server\n");
1.128 frystyk 650: HTHost_setVersion(host, HTTP_10);
1.155 frystyk 651: } else { /* 1.x, x>0 family */
652: HTHost_setVersion(host, HTTP_11); /* Best we can do */
1.156 frystyk 653: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
654: if (PROT_TRACE)
655: HTTrace("HTTP........ Mode is HTTP/1.1 with NO PIPELINING\n");
1.147 frystyk 656: HTNet_setPersistent(net, YES, HT_TP_SINGLE);
1.156 frystyk 657: } else if (ConnectionMode & HTTP_11_MUX) {
658: if (PROT_TRACE)
659: HTTrace("HTTP........ Mode is HTTP/1.1 with MUXING\n");
660: HTNet_setPersistent(net, YES, HT_TP_INTERLEAVE);
1.147 frystyk 661: } else if (ConnectionMode & HTTP_FORCE_10) {
662: if (PROT_TRACE) HTTrace("HTTP........ Mode is FORCE HTTP/1.0\n");
663: HTHost_setVersion(host, HTTP_10);
664: HTNet_setPersistent(net, NO, HT_TP_SINGLE);
665: } else
666: HTNet_setPersistent(net, YES, HT_TP_PIPELINE);
1.128 frystyk 667: }
1.95 frystyk 668:
1.81 frystyk 669: me->status = atoi(HTNextField(&ptr));
670: me->reason = ptr;
671: if ((ptr = strchr(me->reason, '\r')) != NULL) /* Strip \r and \n */
672: *ptr = '0円';
673: else if ((ptr = strchr(me->reason, '\n')) != NULL)
674: *ptr = '0円';
675:
1.130 frystyk 676: /*
677: ** If it is a 1xx code then find out what to do and return until we
678: ** get the next code. In the case of Upgrade we may not get back here
679: ** at all. If we are uploading an entity then continue doing that
680: */
681: if (me->status/100 == 1) {
1.136 frystyk 682: if (HTTPInformation(me) == YES) {
683: me->buflen = 0;
684: me->state = EOL_BEGIN;
1.157 frystyk 685: if (me->info_target) (*me->info_target->isa->_free)(me->info_target);
686: me->info_target = HTStreamStack(WWW_MIME_CONT,
687: HTRequest_debugFormat(request),
688: HTRequest_debugStream(request),
689: request, NO);
690: if (length > 0) HTHost_setConsumed(host, length);
691: return HT_OK;
1.103 frystyk 692: }
1.56 frystyk 693: }
1.133 frystyk 694:
695: /*
696: ** As we are getting fresh metainformation in the HTTP response,
697: ** we clear the old metainfomation in order not to mix it with the new
698: ** one. This is particularly important for the content-length and the
1.139 frystyk 699: ** like. The TRACE and OPTIONS method just adds to the current
700: ** metainformation so in that case we don't clear the anchor.
1.133 frystyk 701: */
1.136 frystyk 702: if (me->status==200 || me->status==203 || me->status==300) {
1.140 frystyk 703: /*
704: ** 200, 203 and 300 are all fully cacheable responses. No byte
705: ** ranges or anything else make life hard in this case.
706: */
1.148 frystyk 707: HTAnchor_clearHeader(HTRequest_anchor(request));
1.166 frystyk 708: HTResponse_setCachable(response, HT_CACHE_ALL);
1.136 frystyk 709: me->target = HTStreamStack(WWW_MIME,
710: HTRequest_outputFormat(request),
711: HTRequest_outputStream(request),
712: request, NO);
1.140 frystyk 713: } else if (me->status==206) {
714: /*
715: ** We got a partial response and now we must check whether
716: ** we issued a cache If-Range request or it was a new
717: ** partial response which we don't have in cache. In the latter
718: ** case, we don't cache the object and in the former we append
719: ** the result to the already existing cache entry.
720: */
721: HTReload reload = HTRequest_reloadMode(request);
722: if (reload == HT_CACHE_RANGE_VALIDATE) {
1.166 frystyk 723: HTResponse_setCachable(response, HT_CACHE_ALL);
1.140 frystyk 724: me->target = HTStreamStack(WWW_MIME_PART,
725: HTRequest_outputFormat(request),
726: HTRequest_outputStream(request),
727: request, NO);
728: } else {
1.149 frystyk 729: HTAnchor_clearHeader(HTRequest_anchor(request));
1.140 frystyk 730: me->target = HTStreamStack(WWW_MIME,
731: HTRequest_outputFormat(request),
732: HTRequest_outputStream(request),
733: request, NO);
734: }
1.139 frystyk 735: } else if (me->status==204 || me->status==304) {
1.166 frystyk 736: HTResponse_setCachable(response, HT_CACHE_ALL);
1.136 frystyk 737: me->target = HTStreamStack(WWW_MIME_HEAD,
738: HTRequest_debugFormat(request),
739: HTRequest_debugStream(request),
740: request, NO);
741: } else if (HTRequest_debugStream(request)) {
1.166 frystyk 742: if (me->status == 201) HTResponse_setCachable(response, HT_CACHE_ETAG);
1.136 frystyk 743: me->target = HTStreamStack(WWW_MIME,
744: HTRequest_debugFormat(request),
745: HTRequest_debugStream(request),
746: request, NO);
747: } else {
1.140 frystyk 748: /*
749: ** We still need to parse the MIME part in order to find any
750: ** valuable meta information which is needed from the response.
751: */
1.166 frystyk 752: if (me->status == 201) HTResponse_setCachable(response, HT_CACHE_ETAG);
1.136 frystyk 753: me->target = HTStreamStack(WWW_MIME,
754: HTRequest_debugFormat(request),
755: HTRequest_debugStream(request),
756: request, NO);
1.133 frystyk 757: }
1.56 frystyk 758: }
1.113 frystyk 759: if (!me->target) me->target = HTErrorStream();
1.81 frystyk 760: HTTPNextState(me); /* Get next state */
1.80 frystyk 761: me->transparent = YES;
1.157 frystyk 762: if (length > 0) HTHost_setConsumed(HTNet_host(HTRequest_net(me->request)), length);
1.80 frystyk 763: return HT_OK;
1.71 frystyk 764: }
1.56 frystyk 765:
1.80 frystyk 766: /*
767: ** Searches for HTTP header line until buffer fills up or a CRLF or LF
768: ** is found
769: */
1.119 frystyk 770: PRIVATE int HTTPStatus_put_block (HTStream * me, const char * b, int l)
1.71 frystyk 771: {
1.150 frystyk 772: int status = HT_OK;
1.153 frystyk 773: int length = l;
1.146 frystyk 774: me->startLen = me->buflen;
1.80 frystyk 775: while (!me->transparent && l-- > 0) {
1.157 frystyk 776: if (me->info_target) {
777:
778: /* Put data down the 1xx return code parser until we are done. */
779: status = (*me->info_target->isa->put_block)(me->info_target, b, l+1);
780: if (status != HT_CONTINUE) return status;
781:
782: /* Now free the info stream */
783: (*me->info_target->isa->_free)(me->info_target);
784: me->info_target = NULL;
785:
786: /* Update where we are in the stream */
787: l = HTHost_remainingRead(HTNet_host(HTRequest_net(me->request)));
1.163 frystyk 788: b += (length-l);
1.159 frystyk 789: length = l;
1.163 frystyk 790: if (l <= 0) break;
1.157 frystyk 791:
1.80 frystyk 792: } else {
793: *(me->buffer+me->buflen++) = *b;
794: if (me->state == EOL_FCR) {
795: if (*b == LF) { /* Line found */
1.157 frystyk 796: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 797: } else {
798: me->state = EOL_BEGIN;
799: }
800: } else if (*b == CR) {
801: me->state = EOL_FCR;
802: } else if (*b == LF) {
1.157 frystyk 803: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.71 frystyk 804: } else {
1.80 frystyk 805: if (me->buflen >= MAX_STATUS_LEN) {
1.157 frystyk 806: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 807: }
1.71 frystyk 808: }
1.80 frystyk 809: b++;
1.71 frystyk 810: }
1.56 frystyk 811: }
1.153 frystyk 812:
1.159 frystyk 813: if (!me->transparent && length != l)
814: HTHost_setConsumed(HTNet_host(HTRequest_net(me->request)), length-l);
815:
1.99 frystyk 816: if (l > 0) return PUTBLOCK(b, l);
1.150 frystyk 817: return status;
1.56 frystyk 818: }
819:
1.119 frystyk 820: PRIVATE int HTTPStatus_put_string (HTStream * me, const char * s)
1.71 frystyk 821: {
1.80 frystyk 822: return HTTPStatus_put_block(me, s, (int) strlen(s));
1.71 frystyk 823: }
1.56 frystyk 824:
1.100 frystyk 825: PRIVATE int HTTPStatus_put_character (HTStream * me, char c)
1.71 frystyk 826: {
1.80 frystyk 827: return HTTPStatus_put_block(me, &c, 1);
828: }
829:
1.100 frystyk 830: PRIVATE int HTTPStatus_flush (HTStream * me)
1.80 frystyk 831: {
832: return (*me->target->isa->flush)(me->target);
1.71 frystyk 833: }
834:
1.100 frystyk 835: PRIVATE int HTTPStatus_free (HTStream * me)
1.71 frystyk 836: {
1.87 frystyk 837: int status = HT_OK;
838: if (me->target) {
839: if ((status = (*me->target->isa->_free)(me->target))==HT_WOULD_BLOCK)
840: return HT_WOULD_BLOCK;
841: }
1.115 frystyk 842: HT_FREE(me);
1.100 frystyk 843: return status;
1.71 frystyk 844: }
845:
1.104 frystyk 846: PRIVATE int HTTPStatus_abort (HTStream * me, HTList * e)
1.71 frystyk 847: {
848: if (me->target)
1.74 frystyk 849: ABORT_TARGET;
1.115 frystyk 850: HT_FREE(me);
1.74 frystyk 851: if (PROT_TRACE)
1.116 eric 852: HTTrace("HTTPStatus.. ABORTING...\n");
1.80 frystyk 853: return HT_ERROR;
1.71 frystyk 854: }
855:
856: /* HTTPStatus Stream
857: ** -----------------
858: */
1.119 frystyk 859: PRIVATE const HTStreamClass HTTPStatusClass =
1.71 frystyk 860: {
861: "HTTPStatus",
1.80 frystyk 862: HTTPStatus_flush,
1.71 frystyk 863: HTTPStatus_free,
864: HTTPStatus_abort,
865: HTTPStatus_put_character,
866: HTTPStatus_put_string,
867: HTTPStatus_put_block
868: };
869:
1.113 frystyk 870: PUBLIC HTStream * HTTPStatus_new (HTRequest * request,
871: void * param,
872: HTFormat input_format,
873: HTFormat output_format,
874: HTStream * output_stream)
1.71 frystyk 875: {
1.115 frystyk 876: HTStream * me;
877: if ((me = (HTStream *) HT_CALLOC(1, sizeof(HTStream))) == NULL)
878: HT_OUTOFMEM("HTTPStatus_new");
1.71 frystyk 879: me->isa = &HTTPStatusClass;
1.113 frystyk 880: if (request) {
1.126 frystyk 881: HTNet * net = HTRequest_net(request);
1.125 frystyk 882: /* Get existing copy */
883: http_info * http = (http_info *) HTNet_context(net);
1.113 frystyk 884: me->request = request;
885: me->http = http;
886: http->next = HTTP_ERROR;
887: me->state = EOL_BEGIN;
888: return me;
889: } else
890: return HTErrorStream();
1.71 frystyk 891: }
892:
893: /* ------------------------------------------------------------------------- */
894:
895: /* Load Document from HTTP Server HTLoadHTTP
1.55 frystyk 896: ** ==============================
897: **
898: ** Given a hypertext address, this routine loads a document.
899: **
900: ** On entry,
901: ** request This is the request structure
1.94 frystyk 902: ** returns HT_ERROR Error has occured in call back
903: ** HT_OK Call back was OK
1.55 frystyk 904: */
1.141 frystyk 905: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type);
906:
907: PUBLIC int HTLoadHTTP (SOCKET soc, HTRequest * request)
1.55 frystyk 908: {
909: http_info *http; /* Specific protocol information */
1.112 frystyk 910: HTParentAnchor *anchor = HTRequest_anchor(request);
1.141 frystyk 911: HTNet * net = HTRequest_net(request);
1.112 frystyk 912:
1.94 frystyk 913: /*
914: ** Initiate a new http structure and bind to request structure
915: ** This is actually state HTTP_BEGIN, but it can't be in the state
916: ** machine as we need the structure first.
917: */
1.141 frystyk 918: if (PROT_TRACE) HTTrace("HTTP........ Looking for `%s\'\n",
919: HTAnchor_physical(anchor));
920: if ((http = (http_info *) HT_CALLOC(1, sizeof(http_info))) == NULL)
921: HT_OUTOFMEM("HTLoadHTTP");
922: http->net = net;
1.157 frystyk 923: http->request = request;
1.141 frystyk 924: HTNet_setContext(net, http);
925: HTNet_setEventCallback(net, HTTPEvent);
926: HTNet_setEventParam(net, http); /* callbacks get http* */
927:
1.157 frystyk 928: return HTTPEvent(soc, http, HTEvent_BEGIN); /* get it started - ops is ignored */
929: }
930:
931: PRIVATE int FlushPutEvent (HTTimer * timer, void * param, HTEventType type)
932: {
933: http_info * http = (http_info *) param;
934: HTStream * input = HTRequest_inputStream(http->request);
935: HTPostCallback * pcbf = HTRequest_postCallback(http->request);
936:
1.165 frystyk 937: http->usedTimer = YES;
1.160 frystyk 938: if (timer != http->timer)
939: HTDebugBreak(__FILE__, __LINE__, "HTTP timer %p not in sync\n", timer);
1.157 frystyk 940: if (PROT_TRACE) HTTrace("Uploading... Flushing %p with timer %p\n", http, timer);
941:
942: /*
943: ** We ignore the return code here which we shouldn't!!!
944: */
945: if (http && input && pcbf) (*pcbf)(http->request, input);
946:
947: /*
1.165 frystyk 948: ** Delete the timer but remember that we have used it
1.157 frystyk 949: */
950: http->timer = NULL;
1.165 frystyk 951:
1.157 frystyk 952: return HT_OK;
1.141 frystyk 953: }
954:
955: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type)
956: {
957: http_info * http = (http_info *)pVoid;
958: int status = HT_ERROR;
959: HTNet * net = http->net;
960: HTRequest * request = HTNet_request(net);
1.144 frystyk 961: HTParentAnchor * anchor = HTRequest_anchor(request);
962: HTHost * host = HTNet_host(net);
1.141 frystyk 963:
964: /*
1.166 frystyk 965: ** Check whether we have been interrupted or timed out
1.141 frystyk 966: */
967: if (type == HTEvent_BEGIN) {
1.134 frystyk 968: http->next = HTTP_OK;
969: http->result = HT_ERROR;
1.141 frystyk 970: } else if (type == HTEvent_CLOSE) {
1.112 frystyk 971: HTRequest_addError(request, ERR_FATAL, NO, HTERR_INTERRUPTED,
972: NULL, 0, "HTLoadHTTP");
973: HTTPCleanup(request, HT_INTERRUPTED);
1.166 frystyk 974: return HT_OK;
975: } else if (type == HTEvent_TIMEOUT) {
976: HTRequest_addError(request, ERR_FATAL, NO, HTERR_TIME_OUT,
977: NULL, 0, "HTLoadHTTP");
978: HTTPCleanup(request, HT_TIMEOUT);
1.94 frystyk 979: return HT_OK;
1.141 frystyk 980: } else if (type == HTEvent_END) {
981: HTTPCleanup(request, http->result);
982: return HT_OK;
983: } else if (type == HTEvent_RESET) {
984: HTTPCleanup(request, HT_RECOVER_PIPE);
1.145 frystyk 985: http->state = HTTP_BEGIN;
1.141 frystyk 986: return HT_OK;
987: }
988:
1.71 frystyk 989: /* Now jump into the machine. We know the state from the previous run */
990: while (1) {
991: switch (http->state) {
1.134 frystyk 992: case HTTP_BEGIN:
1.144 frystyk 993: status = HTHost_connect(host, net, HTAnchor_physical(anchor), HTTP_PORT);
994: host = HTNet_host(net);
1.153 frystyk 995: if (status == HT_OK) {
1.140 frystyk 996:
1.123 frystyk 997: /*
1.140 frystyk 998: ** Check the protocol class to see if we have connected to a
999: ** the right class of server, in this case HTTP. If we don't
1000: ** know the server then assume a HTTP/1.0
1.123 frystyk 1001: */
1002: {
1003: char * s_class = HTHost_class(host);
1.140 frystyk 1004: if (!s_class) {
1005: if (HTRequest_proxy(request) == NULL)
1006: HTRequest_addConnection(request, "Keep-Alive", "");
1007: HTHost_setClass(host, "http");
1008: } else if (strcasecomp(s_class, "http")) {
1.123 frystyk 1009: HTRequest_addError(request, ERR_FATAL, NO, HTERR_CLASS,
1010: NULL, 0, "HTLoadHTTP");
1011: http->state = HTTP_ERROR;
1012: break;
1013: }
1.95 frystyk 1014: }
1.147 frystyk 1015:
1.156 frystyk 1016: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
1.147 frystyk 1017: if (PROT_TRACE) HTTrace("HTTP........ Mode is HTTP/1.1 WITH NO PIPELINING\n");
1018: HTRequest_setFlush(request, YES);
1019: } else if (ConnectionMode & HTTP_FORCE_10) {
1020: if (PROT_TRACE) HTTrace("HTTP........ Mode is FORCE HTTP/1.0\n");
1021: HTHost_setVersion(host, HTTP_10);
1022: }
1023:
1.151 frystyk 1024: if (HTNet_preemptive(net)) {
1025: if (PROT_TRACE) HTTrace("HTTP........ Force flush on preemptive load\n");
1026: HTRequest_setFlush(request, YES);
1027: }
1028:
1.147 frystyk 1029: /* Jump to next state */
1.144 frystyk 1030: http->state = HTTP_NEED_STREAM;
1.159 frystyk 1031: } else if (status == HT_WOULD_BLOCK || status == HT_PENDING) {
1.144 frystyk 1032: return HT_OK;
1.159 frystyk 1033: } else
1.144 frystyk 1034: http->state = HTTP_ERROR; /* Error or interrupt */
1035: break;
1036:
1037: case HTTP_NEED_STREAM:
1.138 frystyk 1038:
1.144 frystyk 1039: /*
1040: ** Create the stream pipe FROM the channel to the application.
1041: ** The target for the input stream pipe is set up using the
1042: ** stream stack.
1043: */
1.167 frystyk 1044: {
1045: /*
1046: ** during a recovery, we might keep the same HTNet object.
1047: ** if so, reuse it's read stream
1048: */
1049: HTStream * me = HTNet_readStream( net );
1050: if ( me == NULL ) {
1051: me=HTStreamStack(WWW_HTTP,
1052: HTRequest_outputFormat(request),
1053: HTRequest_outputStream(request),
1054: request, YES);
1055: HTNet_setReadStream(net, me);
1056: }
1057: HTRequest_setOutputConnected(request, YES);
1.144 frystyk 1058: }
1.127 frystyk 1059:
1.144 frystyk 1060: /*
1061: ** Create the stream pipe TO the channel from the application
1062: ** and hook it up to the request object
1063: */
1064: {
1065: HTChannel * channel = HTHost_channel(host);
1066: HTOutputStream * output = HTChannel_getChannelOStream(channel);
1067: int version = HTHost_version(host);
1068: HTStream * app = NULL;
1069:
1.139 frystyk 1070: #ifdef HTTP_DUMP
1.144 frystyk 1071: if (PROT_TRACE) {
1.162 frystyk 1072: if (!htfp) htfp = fopen(HTTP_OUTPUT, "ab");
1073: if (htfp) {
1.144 frystyk 1074: output = (HTOutputStream *)
1.162 frystyk 1075: HTTee((HTStream *) output, HTFWriter_new(request, htfp, YES), NULL);
1.147 frystyk 1076: HTTrace("HTTP........ Dumping request to `%s\'\n", HTTP_OUTPUT);
1.144 frystyk 1077: }
1078: }
1.139 frystyk 1079: #endif /* HTTP_DUMP */
1.144 frystyk 1080: app = HTMethod_hasEntity(HTRequest_method(request)) ?
1081: HTMIMERequest_new(request,
1082: HTTPRequest_new(request, (HTStream *) output, NO,
1083: version),
1084: YES) :
1085: HTTPRequest_new(request, (HTStream *) output, YES, version);
1086: HTRequest_setInputStream(request, app);
1087: }
1.88 frystyk 1088:
1.144 frystyk 1089: /*
1090: ** Set up concurrent read/write if this request isn't the
1091: ** source for a PUT or POST. As source we don't start reading
1092: ** before all destinations are ready. If destination then
1093: ** register the input stream and get ready for read
1094: */
1095: if (HTRequest_isDestination(request)) {
1096: HTHost_register(host, net, HTEvent_READ);
1097: HTRequest_linkDestination(request);
1098: }
1099: http->state = HTTP_CONNECTED;
1100: type = HTEvent_WRITE; /* fresh, so try a write */
1.71 frystyk 1101: break;
1102:
1.87 frystyk 1103: /* As we can do simultanous read and write this is now one state */
1.141 frystyk 1104: case HTTP_CONNECTED:
1105: if (type == HTEvent_WRITE) {
1.157 frystyk 1106: HTStream * input = HTRequest_inputStream(request);
1107: HTPostCallback * pcbf = HTRequest_postCallback(request);
1108: status = HTRequest_flush(request) ?
1109: HTHost_forceFlush(host) : (*input->isa->flush)(input);
1110:
1111: /*
1112: ** Check to see if we are uploading something or just a normal
1113: ** GET kind of thing.
1114: */
1115: if (pcbf) {
1116: if (http->lock == NO) {
1117: int retrys = HTRequest_retrys(request);
1118: ms_t delay = retrys > 3 ? 3000 : 2000;
1.165 frystyk 1119: if (!http->timer && !http->usedTimer) {
1.162 frystyk 1120: http->timer = HTTimer_new(NULL, FlushPutEvent,
1121: http, delay, YES, NO);
1.157 frystyk 1122: if (PROT_TRACE)
1.165 frystyk 1123: HTTrace("Uploading... Holding %p for %lu ms using time %p\n",
1124: http, delay, http->timer);
1.157 frystyk 1125: HTHost_register(host, net, HTEvent_READ);
1126: }
1127: http->lock = YES;
1128: }
1129: type = HTEvent_READ;
1130: } else {
1131:
1132: /*
1133: ** Check to see if we can start a new request
1134: ** pending in the host object.
1135: */
1136: HTHost_launchPending(host);
1137: type = HTEvent_READ;
1138: }
1139:
1140: /* Now check the status code */
1141: if (status == HT_WOULD_BLOCK)
1142: return HT_OK;
1143: else if (status == HT_PAUSE || status == HT_LOADED) {
1144: type = HTEvent_READ;
1.168 ! frystyk 1145: } else if (status==HT_ERROR)
1.157 frystyk 1146: http->state = HTTP_RECOVER_PIPE;
1147: } else if (type == HTEvent_FLUSH) {
1148: HTStream * input = HTRequest_inputStream(request);
1149: if (input == NULL)
1150: return HT_ERROR;
1151: return (*input->isa->flush)(input);
1152: } else if (type == HTEvent_READ) {
1153: status = HTHost_read(host, net);
1154: if (status == HT_WOULD_BLOCK)
1155: return HT_OK;
1156: else if (status == HT_CONTINUE) {
1157: if (PROT_TRACE) HTTrace("HTTP........ Continuing\n");
1158: http->lock = NO;
1159: continue;
1160: } else if (status==HT_LOADED)
1161: http->state = http->next; /* Jump to next state (OK or ERROR) */
1162: else if (status==HT_CLOSED)
1163: http->state = HTTP_RECOVER_PIPE;
1.167 frystyk 1164: else if (status == HT_ERROR)
1165: http->state = HTTP_KILL_PIPE;
1.157 frystyk 1166: else
1167: http->state = HTTP_ERROR;
1168: } else {
1169: http->state = HTTP_ERROR; /* don't know how to handle OOB */
1170: }
1171: break;
1.141 frystyk 1172:
1.134 frystyk 1173: case HTTP_OK:
1174: HTTPCleanup(request, http->result);
1.94 frystyk 1175: return HT_OK;
1.71 frystyk 1176: break;
1.141 frystyk 1177:
1178: case HTTP_RECOVER_PIPE:
1179: {
1180: /*
1181: ** If this is a persistent connection and we get a close
1182: ** then it is an error and we should recover from it by
1183: ** restarting the pipe line of requests if any
1184: */
1.151 frystyk 1185: if (HTHost_isPersistent(host) && !HTHost_closeNotification(host)) {
1.143 frystyk 1186: if (host == NULL) return HT_ERROR;
1.144 frystyk 1187: HTRequest_setFlush(request, YES);
1188: HTHost_recoverPipe(host);
1189: return HT_OK;
1.141 frystyk 1190: } else
1191: http->state = HTTP_OK;
1192: }
1.143 frystyk 1193: break;
1.141 frystyk 1194:
1.167 frystyk 1195: case HTTP_KILL_PIPE:
1196: if (host == NULL) return HT_ERROR;
1197: HTHost_killPipe(host);
1198: return HT_OK;
1199: break;
1200:
1.71 frystyk 1201: case HTTP_ERROR:
1.143 frystyk 1202: HTTPCleanup(request, http->result);
1203: return HT_OK;
1204: break;
1205:
1.141 frystyk 1206: default:
1.160 frystyk 1207: HTDebugBreak(__FILE__, __LINE__, "Bad http state %d\n", http->state);
1.71 frystyk 1208: }
1209: } /* End of while(1) */
1210: }
1.88 frystyk 1211:
1.147 frystyk 1212: PUBLIC void HTTP_setConnectionMode (HTTPConnectionMode mode)
1213: {
1214: ConnectionMode = mode;
1215: }
1216:
1217: PUBLIC HTTPConnectionMode HTTP_connectionMode (void)
1218: {
1219: return ConnectionMode;
1220: }
1.21 luotonen 1221:
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