Annotation of libwww/Library/src/HTTP.c, revision 1.159
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.
1.159 ! frystyk 6: ** @(#) $Id: HTTP.c,v 1.158 1998年03月04日 15:46:24 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 */
1.119 frystyk 20: #include "sysdep.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"
1.140 frystyk 45: #endif
1.139 frystyk 46:
1.59 frystyk 47: /* Type definitions and global variables etc. local to this module */
1.94 frystyk 48:
49: /* Final states have negative value */
1.59 frystyk 50: typedef enum _HTTPState {
1.141 frystyk 51: HTTP_RECOVER_PIPE = -3,
1.134 frystyk 52: HTTP_ERROR = -2,
53: HTTP_OK = -1,
1.71 frystyk 54: HTTP_BEGIN = 0,
1.144 frystyk 55: HTTP_NEED_STREAM,
1.141 frystyk 56: HTTP_CONNECTED
1.59 frystyk 57: } HTTPState;
1.55 frystyk 58:
1.94 frystyk 59: /* This is the context structure for the this module */
1.55 frystyk 60: typedef struct _http_info {
1.81 frystyk 61: HTTPState state; /* Current State of the connection */
62: HTTPState next; /* Next state */
1.134 frystyk 63: int result; /* Result to report to the after filter */
1.139 frystyk 64: BOOL lock; /* Block for writing */
1.141 frystyk 65: HTNet * net;
1.157 frystyk 66: HTRequest * request;
67: HTTimer * timer;
1.55 frystyk 68: } http_info;
69:
1.88 frystyk 70: #define MAX_STATUS_LEN 100 /* Max nb of chars to check StatusLine */
1.55 frystyk 71:
1.71 frystyk 72: struct _HTStream {
1.119 frystyk 73: const HTStreamClass * isa;
1.71 frystyk 74: HTStream * target;
1.157 frystyk 75: HTStream * info_target; /* For 100 codes */
1.71 frystyk 76: HTRequest * request;
77: http_info * http;
1.121 frystyk 78: HTEOLState state;
1.71 frystyk 79: BOOL transparent;
1.150 frystyk 80: BOOL cont;
1.81 frystyk 81: char * version; /* Should we save this? */
1.71 frystyk 82: int status;
1.81 frystyk 83: char * reason;
1.71 frystyk 84: char buffer[MAX_STATUS_LEN+1];
1.80 frystyk 85: int buflen;
1.146 frystyk 86: int startLen;/* buflen when put_block was called */
1.71 frystyk 87: };
1.21 luotonen 88:
1.123 frystyk 89: struct _HTInputStream {
90: const HTInputStreamClass * isa;
91: };
92:
1.147 frystyk 93: #ifdef HT_NO_PIPELINING
1.156 frystyk 94: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_NO_PIPELINING;
1.147 frystyk 95: #else
1.156 frystyk 96: #ifdef HT_MUX
97: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_MUX;
98: #else
99: #ifdef HT_FORCE_10
100: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_FORCE_10;
101: #else
102: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_PIPELINING;
103: #endif
104: #endif
1.147 frystyk 105: #endif
106:
1.71 frystyk 107: /* ------------------------------------------------------------------------- */
108: /* Help Functions */
109: /* ------------------------------------------------------------------------- */
1.21 luotonen 110:
1.94 frystyk 111: /* HTTPCleanup
112: ** -----------
1.55 frystyk 113: ** This function closes the connection and frees memory.
1.94 frystyk 114: ** Returns YES on OK, else NO
1.1 timbl 115: */
1.94 frystyk 116: PRIVATE int HTTPCleanup (HTRequest *req, int status)
1.1 timbl 117: {
1.126 frystyk 118: HTNet * net = HTRequest_net(req);
119: http_info * http = (http_info *) HTNet_context(net);
120: HTStream * input = HTRequest_inputStream(req);
1.80 frystyk 121:
1.144 frystyk 122: if (PROT_TRACE)
123: HTTrace("HTTP Clean.. Called with status %d, net %p\n", status, net);
124:
1.94 frystyk 125: /* Free stream with data TO network */
1.112 frystyk 126: if (HTRequest_isDestination(req))
127: HTRequest_removeDestination(req);
1.126 frystyk 128: else if (input) {
1.145 frystyk 129: if (status == HT_INTERRUPTED || status == HT_RECOVER_PIPE)
1.126 frystyk 130: (*input->isa->abort)(input, NULL);
1.94 frystyk 131: else
1.126 frystyk 132: (*input->isa->_free)(input);
133: HTRequest_setInputStream(req, NULL);
1.94 frystyk 134: }
1.88 frystyk 135:
1.144 frystyk 136: /*
1.157 frystyk 137: ** Remove if we have registered an upload function as a callback
138: */
139: if (http->timer) {
140: HTTimer_delete(http->timer);
141: http->timer = NULL;
142: }
143:
144: /*
1.144 frystyk 145: ** Remove the request object and our own context structure for http.
146: */
147: if (status != HT_RECOVER_PIPE) {
1.153 frystyk 148: HTNet_delete(net, status);
1.141 frystyk 149: HT_FREE(http);
150: }
1.94 frystyk 151: return YES;
1.55 frystyk 152: }
153:
1.71 frystyk 154: /*
1.130 frystyk 155: ** Informational 1xx codes are handled separately
1.136 frystyk 156: ** Returns YES if we should continue, NO if we should stop
1.55 frystyk 157: */
1.130 frystyk 158: PRIVATE BOOL HTTPInformation (HTStream * me)
1.55 frystyk 159: {
1.136 frystyk 160: http_info * http = me->http;
1.71 frystyk 161: switch (me->status) {
162:
1.136 frystyk 163: case 100:
164: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CONTINUE,
165: me->reason, (int) strlen(me->reason),
166: "HTTPInformation");
167: return YES;
168: break;
169:
1.130 frystyk 170: case 101:
1.136 frystyk 171: /*
172: ** We consider 101 Switching as a final state and exit this request
173: */
1.130 frystyk 174: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_SWITCHING,
1.127 frystyk 175: me->reason, (int) strlen(me->reason),
1.130 frystyk 176: "HTTPInformation");
1.136 frystyk 177: http->next = HTTP_OK;
178: http->result = HT_UPGRADE;
1.127 frystyk 179: break;
180:
1.130 frystyk 181: default:
1.136 frystyk 182: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
183: (void *) me->buffer, me->buflen, "HTTPNextState");
184: http->next = HTTP_ERROR;
185: http->result = HT_ERROR;
1.127 frystyk 186: break;
1.130 frystyk 187: }
1.136 frystyk 188: return NO;
1.130 frystyk 189: }
190:
1.158 frystyk 191:
192:
1.130 frystyk 193: /*
194: ** This is a big switch handling all HTTP return codes. It puts in any
195: ** appropiate error message and decides whether we should expect data
196: ** or not.
197: */
198: PRIVATE void HTTPNextState (HTStream * me)
199: {
1.134 frystyk 200: http_info * http = me->http;
1.158 frystyk 201: int error_class = me->status / 100;
202: switch (error_class) {
1.127 frystyk 203:
1.158 frystyk 204: case 0: /* 0.9 response */
205: case 2:
1.112 frystyk 206:
1.158 frystyk 207: switch (me->status) {
1.112 frystyk 208:
1.158 frystyk 209: case 201: /* Created */
210: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CREATED,
211: me->reason, (int) strlen(me->reason),
212: "HTTPNextState");
213: http->next = HTTP_OK;
214: http->result = HT_CREATED;
215: break;
216:
217: case 202: /* Accepted */
218: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_ACCEPTED,
219: me->reason, (int) strlen(me->reason),
220: "HTTPNextState");
221: http->next = HTTP_OK;
222: http->result = HT_ACCEPTED;
223: break;
224:
225: case 203: /* Non-authoritative information */
226: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NON_AUTHORITATIVE,
227: me->reason, (int) strlen(me->reason),
228: "HTTPNextState");
229: http->next = HTTP_OK;
230: http->result = HT_LOADED;
231: break;
232:
233: case 204: /* No Response */
234: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NO_CONTENT,
235: me->reason, (int) strlen(me->reason),
236: "HTTPNextState");
237: http->next = HTTP_OK;
238: http->result = HT_NO_DATA;
239: break;
240:
241: case 205: /* Reset Content */
242: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_RESET,
243: me->reason, (int) strlen(me->reason),
244: "HTTPNextState");
245: http->next = HTTP_OK;
246: http->result = HT_RESET_CONTENT;
247: break;
248:
249: case 206: /* Partial Content */
250: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL,
251: me->reason, (int) strlen(me->reason),
252: "HTTPNextState");
253: http->next = HTTP_OK;
254: http->result = HT_PARTIAL_CONTENT;
255: break;
256:
257: case 207: /* Partial Update OK */
258: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL_OK,
259: me->reason, (int) strlen(me->reason),
260: "HTTPNextState");
261: http->next = HTTP_OK;
262: http->result = HT_PARTIAL_CONTENT;
263: break;
264:
265: default:
266: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_OK,
267: me->reason, (int) strlen(me->reason),
268: "HTTPNextState");
269: http->next = HTTP_OK;
270: http->result = HT_LOADED;
271: break;
272: }
1.134 frystyk 273: break;
274:
1.158 frystyk 275: case 3:
1.134 frystyk 276:
1.158 frystyk 277: switch (me->status) {
1.78 frystyk 278:
1.158 frystyk 279: case 301: /* Moved */
280: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MOVED,
281: me->reason, (int) strlen(me->reason),
282: "HTTPNextState");
283: http->next = HTTP_ERROR;
284: http->result = HT_PERM_REDIRECT;
285: break;
286:
287: case 302: /* Found */
288: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_FOUND,
289: me->reason, (int) strlen(me->reason),
290: "HTTPNextState");
291: http->next = HTTP_ERROR;
292: http->result = HT_FOUND;
293: break;
1.55 frystyk 294:
1.158 frystyk 295: case 303: /* Method */
296: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_METHOD,
297: me->reason, (int) strlen(me->reason),
298: "HTTPNextState");
299: http->next = HTTP_ERROR;
300: http->result = HT_SEE_OTHER;
301: break;
302:
303: case 304: /* Not Modified */
304: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NOT_MODIFIED,
305: me->reason, (int) strlen(me->reason),
306: "HTTPNextState");
307: http->next = HTTP_OK;
308: http->result = HT_NOT_MODIFIED;
309: break;
1.134 frystyk 310:
1.158 frystyk 311: case 305: /* Use proxy */
312: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_USE_PROXY,
313: me->reason, (int) strlen(me->reason),
314: "HTTPNextState");
315: http->next = HTTP_ERROR;
316: http->result = HT_USE_PROXY;
317: break;
1.55 frystyk 318:
1.152 frystyk 319: #if 0
1.158 frystyk 320: case 306: /* Use proxy */
321: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PROXY_REDIRECT,
322: me->reason, (int) strlen(me->reason),
323: "HTTPNextState");
324: http->next = HTTP_ERROR;
325: http->result = HT_USE_PROXY;
326: break;
1.152 frystyk 327: #endif
328:
1.158 frystyk 329: case 307: /* Use proxy */
330: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_TEMP_REDIRECT,
331: me->reason, (int) strlen(me->reason),
332: "HTTPNextState");
333: http->next = HTTP_ERROR;
334: http->result = HT_TEMP_REDIRECT;
335: break;
336:
337: default:
338: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MULTIPLE,
339: me->reason, (int) strlen(me->reason),
340: "HTTPNextState");
341: http->next = HTTP_OK;
342: http->result = HT_LOADED;
343: break;
344: }
345: break;
346:
347: case 4:
348:
349: switch (me->status) {
350: case 401:
351: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNAUTHORIZED,
352: me->reason, (int) strlen(me->reason), "HTTPNextState");
353: http->next = HTTP_ERROR;
354: http->result = HT_NO_ACCESS;
355: break;
1.152 frystyk 356:
1.158 frystyk 357: case 402: /* Payment required */
358: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PAYMENT_REQUIRED,
359: me->reason, (int) strlen(me->reason), "HTTPNextState");
360: http->next = HTTP_ERROR;
361: http->result = -402;
362: break;
1.71 frystyk 363:
1.158 frystyk 364: case 403: /* Forbidden */
365: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_FORBIDDEN,
366: me->reason, (int) strlen(me->reason), "HTTPNextState");
367: http->next = HTTP_ERROR;
368: http->result = HT_FORBIDDEN;
369: break;
1.55 frystyk 370:
1.158 frystyk 371: case 404: /* Not Found */
372: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_FOUND,
373: me->reason, (int) strlen(me->reason), "HTTPNextState");
374: http->next = HTTP_ERROR;
375: http->result = -404;
376: break;
1.55 frystyk 377:
1.158 frystyk 378: case 405: /* Not Allowed */
379: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_ALLOWED,
380: me->reason, (int) strlen(me->reason), "HTTPNextState");
381: http->next = HTTP_ERROR;
382: http->result = -405;
383: break;
384:
385: case 406: /* None Acceptable */
386: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NONE_ACCEPTABLE,
387: me->reason, (int) strlen(me->reason), "HTTPNextState");
388: http->next = HTTP_ERROR;
389: http->result = HT_NOT_ACCEPTABLE;
390: break;
391:
392: case 407: /* Proxy Authentication Required */
393: HTRequest_addError(me->request, ERR_FATAL, NO,HTERR_PROXY_UNAUTHORIZED,
394: me->reason, (int) strlen(me->reason), "HTTPNextState");
395: http->next = HTTP_ERROR;
396: http->result = HT_NO_PROXY_ACCESS;
397: break;
398:
399: case 408: /* Request Timeout */
400: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TIMEOUT,
401: me->reason, (int) strlen(me->reason), "HTTPNextState");
402: http->next = HTTP_ERROR;
403: http->result = -408;
404: break;
405:
406: case 409: /* Conflict */
407: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_CONFLICT,
408: me->reason, (int) strlen(me->reason), "HTTPNextState");
409: http->next = HTTP_ERROR;
410: http->result = HT_CONFLICT;
411: break;
412:
413: case 410: /* Gone */
414: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GONE,
415: me->reason, (int) strlen(me->reason), "HTTPNextState");
416: http->next = HTTP_ERROR;
417: http->result = -410;
418: break;
419:
420: case 411: /* Length Required */
421: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_LENGTH_REQUIRED,
422: me->reason, (int) strlen(me->reason), "HTTPNextState");
423: http->next = HTTP_ERROR;
424: http->result = HT_LENGTH_REQUIRED;
425: break;
426:
427: case 412: /* Precondition failed */
428: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PRECON_FAILED,
429: me->reason, (int) strlen(me->reason), "HTTPNextState");
430: http->next = HTTP_ERROR;
431: http->result = -412;
432: break;
433:
434: case 413: /* Request entity too large */
435: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TOO_BIG,
436: me->reason, (int) strlen(me->reason), "HTTPNextState");
437: http->next = HTTP_ERROR;
438: http->result = -413;
439: break;
440:
441: case 414: /* Request-URI too long */
442: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_URI_TOO_BIG,
443: me->reason, (int) strlen(me->reason), "HTTPNextState");
444: http->next = HTTP_ERROR;
445: http->result = -414;
446: break;
447:
448: case 415: /* Unsupported */
449: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNSUPPORTED,
450: me->reason, (int) strlen(me->reason), "HTTPNextState");
451: http->next = HTTP_ERROR;
452: http->result = -415;
453: break;
454:
455: case 416: /* Request Range not satisfiable */
456: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_RANGE,
457: me->reason, (int) strlen(me->reason), "HTTPNextState");
458: http->next = HTTP_ERROR;
459: http->result = -416;
460: break;
461:
462: case 417: /* Expectation Failed */
463: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_EXPECTATION_FAILED,
464: me->reason, (int) strlen(me->reason), "HTTPNextState");
465: http->next = HTTP_ERROR;
466: http->result = -417;
467: break;
468:
469: case 418: /* Reauthentication required */
470: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_REAUTH,
471: me->reason, (int) strlen(me->reason), "HTTPNextState");
472: http->next = HTTP_ERROR;
473: http->result = -418;
474: break;
475:
476: case 419: /* Proxy Reauthentication required */
477: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PROXY_REAUTH,
478: me->reason, (int) strlen(me->reason), "HTTPNextState");
479: http->next = HTTP_ERROR;
480: http->result = -419;
481: break;
482:
483: default:
484: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REQUEST,
485: me->reason, (int) strlen(me->reason), "HTTPNextState");
486: http->next = HTTP_ERROR;
487: http->result = -400;
488: break;
489: }
1.134 frystyk 490: break;
491:
1.158 frystyk 492: case 5:
1.134 frystyk 493:
1.158 frystyk 494: switch (me->status) {
495: case 501:
496: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_IMPLEMENTED,
497: me->reason, (int) strlen(me->reason), "HTTPNextState");
498: http->next = HTTP_ERROR;
499: http->result = -501;
500: break;
501:
502: case 502:
503: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_GATE,
504: me->reason, (int) strlen(me->reason), "HTTPNextState");
505: http->next = HTTP_ERROR;
506: http->result = -502;
507: break;
508:
509: case 503:
510: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_DOWN,
511: me->reason, (int) strlen(me->reason), "HTTPNextState");
512: http->next = HTTP_ERROR;
513:
514: /*
515: ** If Retry-After header is found then return HT_RETRY else HT_ERROR.
516: ** The caller may want to reissue the request at a later point in time.
517: */
518: {
519: HTResponse * response = HTRequest_response(me->request);
520: if (HTResponse_retryTime(response))
521: http->result = HT_RETRY;
522: else
523: http->result = -500;
524: }
525: break;
526:
527: case 504:
528: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GATE_TIMEOUT,
529: me->reason, (int) strlen(me->reason), "HTTPNextState");
530: http->next = HTTP_ERROR;
531: http->result = -504;
532: break;
533:
534: case 505: /* Unsupported protocol version */
535: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_VERSION,
536: me->reason, (int) strlen(me->reason), "HTTPNextState");
537: http->next = HTTP_ERROR;
538: http->result = HT_BAD_VERSION;
539: break;
540:
541: case 506: /* Partial update Not Implemented */
542: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NO_PARTIAL_UPDATE,
543: me->reason, (int) strlen(me->reason), "HTTPNextState");
544: http->next = HTTP_ERROR;
545: http->result = HT_BAD_VERSION;
546: break;
547:
548: default: /* bad number */
549: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_INTERNAL,
550: me->reason, (int) strlen(me->reason), "HTTPNextState");
551: http->next = HTTP_ERROR;
552: http->result = -500;
553: break;
1.140 frystyk 554: }
1.78 frystyk 555: break;
556:
1.158 frystyk 557: default:
1.104 frystyk 558: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
1.158 frystyk 559: (void *) me->buffer, me->buflen, "HTTPNextState");
1.134 frystyk 560: http->next = HTTP_ERROR;
1.155 frystyk 561: http->result = -(me->status);
1.71 frystyk 562: break;
1.55 frystyk 563: }
564: }
565:
1.71 frystyk 566: /* ------------------------------------------------------------------------- */
567: /* HTTP Status Line Stream */
568: /* ------------------------------------------------------------------------- */
1.55 frystyk 569:
1.71 frystyk 570: /*
1.141 frystyk 571: ** Analyze the stream we have read. If it is a HTTP 1.0 or higher
1.71 frystyk 572: ** then create a MIME-stream, else create a Guess stream to find out
573: ** what the 0.9 server is sending. We need to copy the buffer as we don't
574: ** know if we can modify the contents or not.
1.78 frystyk 575: **
576: ** Stream handling is a function of the status code returned from the
577: ** server:
578: ** 200: Use `output_stream' in HTRequest structure
1.94 frystyk 579: ** else: Use `debug_stream' in HTRequest structure
1.80 frystyk 580: **
581: ** Return: YES if buffer should be written out. NO otherwise
1.56 frystyk 582: */
1.157 frystyk 583: PRIVATE int stream_pipe (HTStream * me, int length)
1.56 frystyk 584: {
1.136 frystyk 585: HTRequest * request = me->request;
586: HTNet * net = HTRequest_net(request);
1.123 frystyk 587: HTHost * host = HTNet_host(net);
1.141 frystyk 588:
1.153 frystyk 589: #if 0
590: {
591: char * uri = HTAnchor_address((HTAnchor *) HTRequest_anchor(request));
592: fprintf(stderr, "HTTP header: %s for '%s'\n", me->buffer, uri);
593: HT_FREE(uri);
594: }
595: #endif
596:
1.132 frystyk 597: /*
598: ** Just check for HTTP and not HTTP/ as NCSA server chokes on 1.1 replies
599: ** Thanks to Markku Savela <msa@msa.tte.vtt.fi>
1.141 frystyk 600:
1.132 frystyk 601: */
602: if (strncasecomp(me->buffer, "http", 4)) {
1.80 frystyk 603: int status;
1.136 frystyk 604: HTRequest_addError(request, ERR_INFO, NO, HTERR_HTTP09,
1.80 frystyk 605: (void *) me->buffer, me->buflen, "HTTPStatusStream");
1.136 frystyk 606: me->target = HTStreamStack(WWW_UNKNOWN,
607: HTRequest_outputFormat(request),
608: HTRequest_outputStream(request),
609: request, NO);
1.134 frystyk 610: me->http->next = HTTP_OK;
1.80 frystyk 611: if ((status = PUTBLOCK(me->buffer, me->buflen)) == HT_OK)
612: me->transparent = YES;
1.123 frystyk 613: HTHost_setVersion(host, HTTP_09);
1.157 frystyk 614: if (length > 0) HTHost_setConsumed(host, length);
1.80 frystyk 615: return status;
616: } else {
1.140 frystyk 617: HTResponse * response = HTRequest_response(request);
1.155 frystyk 618: char * ptr = me->buffer+5; /* Skip the HTTP part */
619: char * vptr = NULL;
620: int major = 0;
621: int minor = 0;
622: me->version = vptr = HTNextField(&ptr);
623: if (vptr) {
624: major = (int) strtol(me->version, &vptr, 10);
625: if (vptr++) minor = strtol(vptr, NULL, 10);
626: }
1.95 frystyk 627:
1.130 frystyk 628: /* Here we want to find out when to use persistent connection */
1.155 frystyk 629: if (major > 1) {
630: if (PROT_TRACE)HTTrace("HTTP Status. Major version number is %d\n", major);
631: me->target = HTErrorStream();
1.158 frystyk 632: me->status = 9999;
1.155 frystyk 633: HTTPNextState(me); /* Get next state */
1.158 frystyk 634: return HT_ERROR;
1.155 frystyk 635: } else if (minor <= 0) {
636: if (PROT_TRACE)HTTrace("HTTP Status. This is an HTTP/1.0 server\n");
1.128 frystyk 637: HTHost_setVersion(host, HTTP_10);
1.155 frystyk 638: } else { /* 1.x, x>0 family */
639: HTHost_setVersion(host, HTTP_11); /* Best we can do */
1.156 frystyk 640: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
641: if (PROT_TRACE)
642: HTTrace("HTTP........ Mode is HTTP/1.1 with NO PIPELINING\n");
1.147 frystyk 643: HTNet_setPersistent(net, YES, HT_TP_SINGLE);
1.156 frystyk 644: } else if (ConnectionMode & HTTP_11_MUX) {
645: if (PROT_TRACE)
646: HTTrace("HTTP........ Mode is HTTP/1.1 with MUXING\n");
647: HTNet_setPersistent(net, YES, HT_TP_INTERLEAVE);
1.147 frystyk 648: } else if (ConnectionMode & HTTP_FORCE_10) {
649: if (PROT_TRACE) HTTrace("HTTP........ Mode is FORCE HTTP/1.0\n");
650: HTHost_setVersion(host, HTTP_10);
651: HTNet_setPersistent(net, NO, HT_TP_SINGLE);
652: } else
653: HTNet_setPersistent(net, YES, HT_TP_PIPELINE);
1.128 frystyk 654: }
1.95 frystyk 655:
1.81 frystyk 656: me->status = atoi(HTNextField(&ptr));
657: me->reason = ptr;
658: if ((ptr = strchr(me->reason, '\r')) != NULL) /* Strip \r and \n */
659: *ptr = '0円';
660: else if ((ptr = strchr(me->reason, '\n')) != NULL)
661: *ptr = '0円';
662:
1.130 frystyk 663: /*
664: ** If it is a 1xx code then find out what to do and return until we
665: ** get the next code. In the case of Upgrade we may not get back here
666: ** at all. If we are uploading an entity then continue doing that
667: */
668: if (me->status/100 == 1) {
1.136 frystyk 669: if (HTTPInformation(me) == YES) {
670: me->buflen = 0;
671: me->state = EOL_BEGIN;
1.157 frystyk 672: if (me->info_target) (*me->info_target->isa->_free)(me->info_target);
673: me->info_target = HTStreamStack(WWW_MIME_CONT,
674: HTRequest_debugFormat(request),
675: HTRequest_debugStream(request),
676: request, NO);
677: if (length > 0) HTHost_setConsumed(host, length);
678: return HT_OK;
1.103 frystyk 679: }
1.56 frystyk 680: }
1.133 frystyk 681:
682: /*
683: ** As we are getting fresh metainformation in the HTTP response,
684: ** we clear the old metainfomation in order not to mix it with the new
685: ** one. This is particularly important for the content-length and the
1.139 frystyk 686: ** like. The TRACE and OPTIONS method just adds to the current
687: ** metainformation so in that case we don't clear the anchor.
1.133 frystyk 688: */
1.136 frystyk 689: if (me->status==200 || me->status==203 || me->status==300) {
1.140 frystyk 690: /*
691: ** 200, 203 and 300 are all fully cacheable responses. No byte
692: ** ranges or anything else make life hard in this case.
693: */
1.148 frystyk 694: HTAnchor_clearHeader(HTRequest_anchor(request));
1.140 frystyk 695: HTResponse_setCachable(response, YES);
1.136 frystyk 696: me->target = HTStreamStack(WWW_MIME,
697: HTRequest_outputFormat(request),
698: HTRequest_outputStream(request),
699: request, NO);
1.140 frystyk 700: } else if (me->status==206) {
701: /*
702: ** We got a partial response and now we must check whether
703: ** we issued a cache If-Range request or it was a new
704: ** partial response which we don't have in cache. In the latter
705: ** case, we don't cache the object and in the former we append
706: ** the result to the already existing cache entry.
707: */
708: HTReload reload = HTRequest_reloadMode(request);
709: if (reload == HT_CACHE_RANGE_VALIDATE) {
710: HTResponse_setCachable(response, YES);
711: me->target = HTStreamStack(WWW_MIME_PART,
712: HTRequest_outputFormat(request),
713: HTRequest_outputStream(request),
714: request, NO);
715: } else {
1.149 frystyk 716: HTAnchor_clearHeader(HTRequest_anchor(request));
1.140 frystyk 717: me->target = HTStreamStack(WWW_MIME,
718: HTRequest_outputFormat(request),
719: HTRequest_outputStream(request),
720: request, NO);
721: }
1.139 frystyk 722: } else if (me->status==204 || me->status==304) {
1.140 frystyk 723: HTResponse_setCachable(response, YES);
1.136 frystyk 724: me->target = HTStreamStack(WWW_MIME_HEAD,
725: HTRequest_debugFormat(request),
726: HTRequest_debugStream(request),
727: request, NO);
728: } else if (HTRequest_debugStream(request)) {
729: me->target = HTStreamStack(WWW_MIME,
730: HTRequest_debugFormat(request),
731: HTRequest_debugStream(request),
732: request, NO);
733: } else {
1.140 frystyk 734: /*
735: ** We still need to parse the MIME part in order to find any
736: ** valuable meta information which is needed from the response.
737: */
1.136 frystyk 738: me->target = HTStreamStack(WWW_MIME,
739: HTRequest_debugFormat(request),
740: HTRequest_debugStream(request),
741: request, NO);
1.133 frystyk 742: }
1.56 frystyk 743: }
1.113 frystyk 744: if (!me->target) me->target = HTErrorStream();
1.81 frystyk 745: HTTPNextState(me); /* Get next state */
1.80 frystyk 746: me->transparent = YES;
1.157 frystyk 747: if (length > 0) HTHost_setConsumed(HTNet_host(HTRequest_net(me->request)), length);
1.80 frystyk 748: return HT_OK;
1.71 frystyk 749: }
1.56 frystyk 750:
1.80 frystyk 751: /*
752: ** Searches for HTTP header line until buffer fills up or a CRLF or LF
753: ** is found
754: */
1.119 frystyk 755: PRIVATE int HTTPStatus_put_block (HTStream * me, const char * b, int l)
1.71 frystyk 756: {
1.150 frystyk 757: int status = HT_OK;
1.153 frystyk 758: int length = l;
1.146 frystyk 759: me->startLen = me->buflen;
1.80 frystyk 760: while (!me->transparent && l-- > 0) {
1.157 frystyk 761: if (me->info_target) {
762:
763: /* Put data down the 1xx return code parser until we are done. */
764: status = (*me->info_target->isa->put_block)(me->info_target, b, l+1);
765: if (status != HT_CONTINUE) return status;
766:
767: /* Now free the info stream */
768: (*me->info_target->isa->_free)(me->info_target);
769: me->info_target = NULL;
770:
771: /* Update where we are in the stream */
772: l = HTHost_remainingRead(HTNet_host(HTRequest_net(me->request)));
773: b += (length-l);
1.159 ! frystyk 774: length = l;
1.157 frystyk 775:
1.80 frystyk 776: } else {
777: *(me->buffer+me->buflen++) = *b;
778: if (me->state == EOL_FCR) {
779: if (*b == LF) { /* Line found */
1.157 frystyk 780: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 781: } else {
782: me->state = EOL_BEGIN;
783: }
784: } else if (*b == CR) {
785: me->state = EOL_FCR;
786: } else if (*b == LF) {
1.157 frystyk 787: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.71 frystyk 788: } else {
1.80 frystyk 789: if (me->buflen >= MAX_STATUS_LEN) {
1.157 frystyk 790: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 791: }
1.71 frystyk 792: }
1.80 frystyk 793: b++;
1.71 frystyk 794: }
1.56 frystyk 795: }
1.153 frystyk 796:
1.159 ! frystyk 797: if (!me->transparent && length != l)
! 798: HTHost_setConsumed(HTNet_host(HTRequest_net(me->request)), length-l);
! 799:
1.99 frystyk 800: if (l > 0) return PUTBLOCK(b, l);
1.150 frystyk 801: return status;
1.56 frystyk 802: }
803:
1.119 frystyk 804: PRIVATE int HTTPStatus_put_string (HTStream * me, const char * s)
1.71 frystyk 805: {
1.80 frystyk 806: return HTTPStatus_put_block(me, s, (int) strlen(s));
1.71 frystyk 807: }
1.56 frystyk 808:
1.100 frystyk 809: PRIVATE int HTTPStatus_put_character (HTStream * me, char c)
1.71 frystyk 810: {
1.80 frystyk 811: return HTTPStatus_put_block(me, &c, 1);
812: }
813:
1.100 frystyk 814: PRIVATE int HTTPStatus_flush (HTStream * me)
1.80 frystyk 815: {
816: return (*me->target->isa->flush)(me->target);
1.71 frystyk 817: }
818:
1.100 frystyk 819: PRIVATE int HTTPStatus_free (HTStream * me)
1.71 frystyk 820: {
1.87 frystyk 821: int status = HT_OK;
822: if (me->target) {
823: if ((status = (*me->target->isa->_free)(me->target))==HT_WOULD_BLOCK)
824: return HT_WOULD_BLOCK;
825: }
1.115 frystyk 826: HT_FREE(me);
1.100 frystyk 827: return status;
1.71 frystyk 828: }
829:
1.104 frystyk 830: PRIVATE int HTTPStatus_abort (HTStream * me, HTList * e)
1.71 frystyk 831: {
832: if (me->target)
1.74 frystyk 833: ABORT_TARGET;
1.115 frystyk 834: HT_FREE(me);
1.74 frystyk 835: if (PROT_TRACE)
1.116 eric 836: HTTrace("HTTPStatus.. ABORTING...\n");
1.80 frystyk 837: return HT_ERROR;
1.71 frystyk 838: }
839:
840: /* HTTPStatus Stream
841: ** -----------------
842: */
1.119 frystyk 843: PRIVATE const HTStreamClass HTTPStatusClass =
1.71 frystyk 844: {
845: "HTTPStatus",
1.80 frystyk 846: HTTPStatus_flush,
1.71 frystyk 847: HTTPStatus_free,
848: HTTPStatus_abort,
849: HTTPStatus_put_character,
850: HTTPStatus_put_string,
851: HTTPStatus_put_block
852: };
853:
1.113 frystyk 854: PUBLIC HTStream * HTTPStatus_new (HTRequest * request,
855: void * param,
856: HTFormat input_format,
857: HTFormat output_format,
858: HTStream * output_stream)
1.71 frystyk 859: {
1.115 frystyk 860: HTStream * me;
861: if ((me = (HTStream *) HT_CALLOC(1, sizeof(HTStream))) == NULL)
862: HT_OUTOFMEM("HTTPStatus_new");
1.71 frystyk 863: me->isa = &HTTPStatusClass;
1.113 frystyk 864: if (request) {
1.126 frystyk 865: HTNet * net = HTRequest_net(request);
1.125 frystyk 866: /* Get existing copy */
867: http_info * http = (http_info *) HTNet_context(net);
1.113 frystyk 868: me->request = request;
869: me->http = http;
870: http->next = HTTP_ERROR;
871: me->state = EOL_BEGIN;
872: return me;
873: } else
874: return HTErrorStream();
1.71 frystyk 875: }
876:
877: /* ------------------------------------------------------------------------- */
878:
879: /* Load Document from HTTP Server HTLoadHTTP
1.55 frystyk 880: ** ==============================
881: **
882: ** Given a hypertext address, this routine loads a document.
883: **
884: ** On entry,
885: ** request This is the request structure
1.94 frystyk 886: ** returns HT_ERROR Error has occured in call back
887: ** HT_OK Call back was OK
1.55 frystyk 888: */
1.141 frystyk 889: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type);
890:
891: PUBLIC int HTLoadHTTP (SOCKET soc, HTRequest * request)
1.55 frystyk 892: {
893: http_info *http; /* Specific protocol information */
1.112 frystyk 894: HTParentAnchor *anchor = HTRequest_anchor(request);
1.141 frystyk 895: HTNet * net = HTRequest_net(request);
1.112 frystyk 896:
1.94 frystyk 897: /*
898: ** Initiate a new http structure and bind to request structure
899: ** This is actually state HTTP_BEGIN, but it can't be in the state
900: ** machine as we need the structure first.
901: */
1.141 frystyk 902: if (PROT_TRACE) HTTrace("HTTP........ Looking for `%s\'\n",
903: HTAnchor_physical(anchor));
904: if ((http = (http_info *) HT_CALLOC(1, sizeof(http_info))) == NULL)
905: HT_OUTOFMEM("HTLoadHTTP");
906: http->net = net;
1.157 frystyk 907: http->request = request;
1.141 frystyk 908: HTNet_setContext(net, http);
909: HTNet_setEventCallback(net, HTTPEvent);
910: HTNet_setEventParam(net, http); /* callbacks get http* */
911:
1.157 frystyk 912: return HTTPEvent(soc, http, HTEvent_BEGIN); /* get it started - ops is ignored */
913: }
914:
915: PRIVATE int FlushPutEvent (HTTimer * timer, void * param, HTEventType type)
916: {
917: http_info * http = (http_info *) param;
918: HTStream * input = HTRequest_inputStream(http->request);
919: HTPostCallback * pcbf = HTRequest_postCallback(http->request);
920:
921: if (timer != http->timer) HTDebugBreak();
922: if (PROT_TRACE) HTTrace("Uploading... Flushing %p with timer %p\n", http, timer);
923:
924: /*
925: ** We ignore the return code here which we shouldn't!!!
926: */
927: if (http && input && pcbf) (*pcbf)(http->request, input);
928:
929: /*
930: ** Delete the timer
931: */
932: http->timer = NULL;
933: return HT_OK;
1.141 frystyk 934: }
935:
936: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type)
937: {
938: http_info * http = (http_info *)pVoid;
939: int status = HT_ERROR;
940: HTNet * net = http->net;
941: HTRequest * request = HTNet_request(net);
1.144 frystyk 942: HTParentAnchor * anchor = HTRequest_anchor(request);
943: HTHost * host = HTNet_host(net);
1.141 frystyk 944:
945: /*
946: ** Check whether we have been interrupted
947: */
948: if (type == HTEvent_BEGIN) {
1.134 frystyk 949: http->next = HTTP_OK;
950: http->result = HT_ERROR;
1.141 frystyk 951: } else if (type == HTEvent_CLOSE) {
1.112 frystyk 952: HTRequest_addError(request, ERR_FATAL, NO, HTERR_INTERRUPTED,
953: NULL, 0, "HTLoadHTTP");
954: HTTPCleanup(request, HT_INTERRUPTED);
1.94 frystyk 955: return HT_OK;
1.141 frystyk 956: } else if (type == HTEvent_END) {
957: HTTPCleanup(request, http->result);
958: return HT_OK;
959: } else if (type == HTEvent_RESET) {
960: HTTPCleanup(request, HT_RECOVER_PIPE);
1.145 frystyk 961: http->state = HTTP_BEGIN;
1.141 frystyk 962: return HT_OK;
963: }
964:
1.71 frystyk 965: /* Now jump into the machine. We know the state from the previous run */
966: while (1) {
967: switch (http->state) {
1.134 frystyk 968: case HTTP_BEGIN:
1.144 frystyk 969: status = HTHost_connect(host, net, HTAnchor_physical(anchor), HTTP_PORT);
970: host = HTNet_host(net);
1.153 frystyk 971: if (status == HT_OK) {
1.140 frystyk 972:
1.123 frystyk 973: /*
1.140 frystyk 974: ** Check the protocol class to see if we have connected to a
975: ** the right class of server, in this case HTTP. If we don't
976: ** know the server then assume a HTTP/1.0
1.123 frystyk 977: */
978: {
979: char * s_class = HTHost_class(host);
1.140 frystyk 980: if (!s_class) {
981: if (HTRequest_proxy(request) == NULL)
982: HTRequest_addConnection(request, "Keep-Alive", "");
983: HTHost_setClass(host, "http");
984: } else if (strcasecomp(s_class, "http")) {
1.123 frystyk 985: HTRequest_addError(request, ERR_FATAL, NO, HTERR_CLASS,
986: NULL, 0, "HTLoadHTTP");
987: http->state = HTTP_ERROR;
988: break;
989: }
1.95 frystyk 990: }
1.147 frystyk 991:
1.156 frystyk 992: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
1.147 frystyk 993: if (PROT_TRACE) HTTrace("HTTP........ Mode is HTTP/1.1 WITH NO PIPELINING\n");
994: HTRequest_setFlush(request, YES);
995: } else if (ConnectionMode & HTTP_FORCE_10) {
996: if (PROT_TRACE) HTTrace("HTTP........ Mode is FORCE HTTP/1.0\n");
997: HTHost_setVersion(host, HTTP_10);
998: }
999:
1.151 frystyk 1000: if (HTNet_preemptive(net)) {
1001: if (PROT_TRACE) HTTrace("HTTP........ Force flush on preemptive load\n");
1002: HTRequest_setFlush(request, YES);
1003: }
1004:
1.147 frystyk 1005: /* Jump to next state */
1.144 frystyk 1006: http->state = HTTP_NEED_STREAM;
1.159 ! frystyk 1007: } else if (status == HT_WOULD_BLOCK || status == HT_PENDING) {
1.144 frystyk 1008: return HT_OK;
1.159 ! frystyk 1009: } else
1.144 frystyk 1010: http->state = HTTP_ERROR; /* Error or interrupt */
1011: break;
1012:
1013: case HTTP_NEED_STREAM:
1.138 frystyk 1014:
1.144 frystyk 1015: /*
1016: ** Create the stream pipe FROM the channel to the application.
1017: ** The target for the input stream pipe is set up using the
1018: ** stream stack.
1019: */
1.153 frystyk 1020: {
1.144 frystyk 1021: HTStream *me=HTStreamStack(WWW_HTTP,
1022: HTRequest_outputFormat(request),
1023: HTRequest_outputStream(request),
1024: request, YES);
1025: HTNet_setReadStream(net, me);
1026: HTRequest_setOutputConnected(request, YES);
1027: }
1.127 frystyk 1028:
1.144 frystyk 1029: /*
1030: ** Create the stream pipe TO the channel from the application
1031: ** and hook it up to the request object
1032: */
1033: {
1034: HTChannel * channel = HTHost_channel(host);
1035: HTOutputStream * output = HTChannel_getChannelOStream(channel);
1036: int version = HTHost_version(host);
1037: HTStream * app = NULL;
1038:
1.139 frystyk 1039: #ifdef HTTP_DUMP
1.144 frystyk 1040: if (PROT_TRACE) {
1.147 frystyk 1041: FILE * htfp = NULL;
1042: if ((htfp = fopen(HTTP_OUTPUT, "ab")) != NULL) {
1.144 frystyk 1043: output = (HTOutputStream *)
1.147 frystyk 1044: HTTee((HTStream *) output, HTFWriter_new(request, htfp, NO), NULL);
1045: HTTrace("HTTP........ Dumping request to `%s\'\n", HTTP_OUTPUT);
1.144 frystyk 1046: }
1047: }
1.139 frystyk 1048: #endif /* HTTP_DUMP */
1.144 frystyk 1049: app = HTMethod_hasEntity(HTRequest_method(request)) ?
1050: HTMIMERequest_new(request,
1051: HTTPRequest_new(request, (HTStream *) output, NO,
1052: version),
1053: YES) :
1054: HTTPRequest_new(request, (HTStream *) output, YES, version);
1055: HTRequest_setInputStream(request, app);
1056: }
1.88 frystyk 1057:
1.144 frystyk 1058: /*
1059: ** Set up concurrent read/write if this request isn't the
1060: ** source for a PUT or POST. As source we don't start reading
1061: ** before all destinations are ready. If destination then
1062: ** register the input stream and get ready for read
1063: */
1064: if (HTRequest_isDestination(request)) {
1065: HTHost_register(host, net, HTEvent_READ);
1066: HTRequest_linkDestination(request);
1067: }
1068: http->state = HTTP_CONNECTED;
1069: type = HTEvent_WRITE; /* fresh, so try a write */
1.71 frystyk 1070: break;
1071:
1.87 frystyk 1072: /* As we can do simultanous read and write this is now one state */
1.141 frystyk 1073: case HTTP_CONNECTED:
1074: if (type == HTEvent_WRITE) {
1.157 frystyk 1075: HTStream * input = HTRequest_inputStream(request);
1076: HTPostCallback * pcbf = HTRequest_postCallback(request);
1077: status = HTRequest_flush(request) ?
1078: HTHost_forceFlush(host) : (*input->isa->flush)(input);
1079:
1080: /*
1081: ** Check to see if we are uploading something or just a normal
1082: ** GET kind of thing.
1083: */
1084: if (pcbf) {
1085: if (http->lock == NO) {
1086: int retrys = HTRequest_retrys(request);
1087: ms_t delay = retrys > 3 ? 3000 : 2000;
1088: if (!http->timer) {
1089: ms_t exp = HTGetTimeInMillis() + delay;
1090: http->timer = HTTimer_new(NULL, FlushPutEvent, http, exp, NO);
1091: if (PROT_TRACE)
1092: HTTrace("Uploading... Holding %p request for %lu ms\n",
1093: request, delay);
1094: HTHost_register(host, net, HTEvent_READ);
1095: }
1096: http->lock = YES;
1097: }
1098: type = HTEvent_READ;
1099: } else {
1100:
1101: /*
1102: ** Check to see if we can start a new request
1103: ** pending in the host object.
1104: */
1105: HTHost_launchPending(host);
1106: type = HTEvent_READ;
1107: }
1108:
1109: /* Now check the status code */
1110: if (status == HT_WOULD_BLOCK)
1111: return HT_OK;
1112: else if (status == HT_PAUSE || status == HT_LOADED) {
1113: type = HTEvent_READ;
1114: } else if (status==HT_CLOSED)
1115: http->state = HTTP_RECOVER_PIPE;
1116: else if (status == HT_ERROR) {
1117: http->result = HT_INTERRUPTED;
1118: http->state = HTTP_ERROR;
1119: break;
1120: }
1121: } else if (type == HTEvent_FLUSH) {
1122: HTStream * input = HTRequest_inputStream(request);
1123: if (input == NULL)
1124: return HT_ERROR;
1125: return (*input->isa->flush)(input);
1126: } else if (type == HTEvent_READ) {
1127: status = HTHost_read(host, net);
1128: if (status == HT_WOULD_BLOCK)
1129: return HT_OK;
1130: else if (status == HT_CONTINUE) {
1131: if (PROT_TRACE) HTTrace("HTTP........ Continuing\n");
1132: http->lock = NO;
1133: continue;
1134: } else if (status==HT_LOADED)
1135: http->state = http->next; /* Jump to next state (OK or ERROR) */
1136: else if (status==HT_CLOSED)
1137: http->state = HTTP_RECOVER_PIPE;
1138: else
1139: http->state = HTTP_ERROR;
1140: } else {
1141: http->state = HTTP_ERROR; /* don't know how to handle OOB */
1142: }
1143: break;
1.141 frystyk 1144:
1.134 frystyk 1145: case HTTP_OK:
1.88 frystyk 1146: if (HTRequest_isPostWeb(request)) {
1.91 frystyk 1147: if (HTRequest_isDestination(request)) {
1.126 frystyk 1148: HTRequest * source = HTRequest_source(request);
1.91 frystyk 1149: HTLink *link =
1.127 frystyk 1150: HTLink_find((HTAnchor *)HTRequest_anchor(source),
1.112 frystyk 1151: (HTAnchor *) anchor);
1.109 frystyk 1152: HTLink_setResult(link, HT_LINK_OK);
1.91 frystyk 1153: }
1.112 frystyk 1154: }
1.134 frystyk 1155: HTTPCleanup(request, http->result);
1.94 frystyk 1156: return HT_OK;
1.71 frystyk 1157: break;
1.141 frystyk 1158:
1159: case HTTP_RECOVER_PIPE:
1160: {
1161: /*
1162: ** If this is a persistent connection and we get a close
1163: ** then it is an error and we should recover from it by
1164: ** restarting the pipe line of requests if any
1165: */
1.151 frystyk 1166: if (HTHost_isPersistent(host) && !HTHost_closeNotification(host)) {
1.143 frystyk 1167: if (host == NULL) return HT_ERROR;
1.144 frystyk 1168: HTRequest_setFlush(request, YES);
1169: HTHost_recoverPipe(host);
1170: http->state = HTTP_BEGIN;
1171: HTHost_launchPending(host);
1172: return HT_OK;
1.141 frystyk 1173: } else
1174: http->state = HTTP_OK;
1175: }
1.143 frystyk 1176: break;
1.141 frystyk 1177:
1.71 frystyk 1178: case HTTP_ERROR:
1.143 frystyk 1179: if (HTRequest_isPostWeb(request)) {
1180: if (HTRequest_isDestination(request)) {
1181: HTRequest * source = HTRequest_source(request);
1182: HTLink *link =
1183: HTLink_find((HTAnchor *)HTRequest_anchor(source),
1184: (HTAnchor *) anchor);
1185: HTLink_setResult(link, HT_LINK_ERROR);
1186: }
1187: HTRequest_killPostWeb(request);
1188: }
1189: HTTPCleanup(request, http->result);
1190: return HT_OK;
1191: break;
1192:
1.141 frystyk 1193: default:
1194: HTTrace("bad http state %d.\n", http->state);
1195: HTDebugBreak();
1.71 frystyk 1196: }
1197: } /* End of while(1) */
1198: }
1.88 frystyk 1199:
1.147 frystyk 1200: PUBLIC void HTTP_setConnectionMode (HTTPConnectionMode mode)
1201: {
1202: ConnectionMode = mode;
1203: }
1204:
1205: PUBLIC HTTPConnectionMode HTTP_connectionMode (void)
1206: {
1207: return ConnectionMode;
1208: }
1.21 luotonen 1209:
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