Annotation of libwww/Library/src/HTTP.c, revision 1.163
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.
1.163 ! frystyk 6: ** @(#) $Id: HTTP.c,v 1.162 1998年05月19日 16:49:41 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 {
1.141 frystyk 52: HTTP_RECOVER_PIPE = -3,
1.134 frystyk 53: HTTP_ERROR = -2,
54: HTTP_OK = -1,
1.71 frystyk 55: HTTP_BEGIN = 0,
1.144 frystyk 56: HTTP_NEED_STREAM,
1.141 frystyk 57: HTTP_CONNECTED
1.59 frystyk 58: } HTTPState;
1.55 frystyk 59:
1.94 frystyk 60: /* This is the context structure for the this module */
1.55 frystyk 61: typedef struct _http_info {
1.81 frystyk 62: HTTPState state; /* Current State of the connection */
63: HTTPState next; /* Next state */
1.134 frystyk 64: int result; /* Result to report to the after filter */
1.139 frystyk 65: BOOL lock; /* Block for writing */
1.141 frystyk 66: HTNet * net;
1.157 frystyk 67: HTRequest * request;
68: HTTimer * timer;
1.55 frystyk 69: } http_info;
70:
1.88 frystyk 71: #define MAX_STATUS_LEN 100 /* Max nb of chars to check StatusLine */
1.55 frystyk 72:
1.71 frystyk 73: struct _HTStream {
1.119 frystyk 74: const HTStreamClass * isa;
1.71 frystyk 75: HTStream * target;
1.157 frystyk 76: HTStream * info_target; /* For 100 codes */
1.71 frystyk 77: HTRequest * request;
78: http_info * http;
1.121 frystyk 79: HTEOLState state;
1.71 frystyk 80: BOOL transparent;
1.150 frystyk 81: BOOL cont;
1.81 frystyk 82: char * version; /* Should we save this? */
1.71 frystyk 83: int status;
1.81 frystyk 84: char * reason;
1.71 frystyk 85: char buffer[MAX_STATUS_LEN+1];
1.80 frystyk 86: int buflen;
1.146 frystyk 87: int startLen;/* buflen when put_block was called */
1.71 frystyk 88: };
1.21 luotonen 89:
1.123 frystyk 90: struct _HTInputStream {
91: const HTInputStreamClass * isa;
92: };
93:
1.147 frystyk 94: #ifdef HT_NO_PIPELINING
1.156 frystyk 95: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_NO_PIPELINING;
1.147 frystyk 96: #else
1.156 frystyk 97: #ifdef HT_MUX
98: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_MUX;
99: #else
100: #ifdef HT_FORCE_10
101: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_FORCE_10;
102: #else
103: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_PIPELINING;
104: #endif
105: #endif
1.147 frystyk 106: #endif
107:
1.71 frystyk 108: /* ------------------------------------------------------------------------- */
109: /* Help Functions */
110: /* ------------------------------------------------------------------------- */
1.21 luotonen 111:
1.94 frystyk 112: /* HTTPCleanup
113: ** -----------
1.55 frystyk 114: ** This function closes the connection and frees memory.
1.94 frystyk 115: ** Returns YES on OK, else NO
1.1 timbl 116: */
1.94 frystyk 117: PRIVATE int HTTPCleanup (HTRequest *req, int status)
1.1 timbl 118: {
1.126 frystyk 119: HTNet * net = HTRequest_net(req);
120: http_info * http = (http_info *) HTNet_context(net);
121: HTStream * input = HTRequest_inputStream(req);
1.80 frystyk 122:
1.144 frystyk 123: if (PROT_TRACE)
124: HTTrace("HTTP Clean.. Called with status %d, net %p\n", status, net);
125:
1.94 frystyk 126: /* Free stream with data TO network */
1.112 frystyk 127: if (HTRequest_isDestination(req))
128: HTRequest_removeDestination(req);
1.126 frystyk 129: else if (input) {
1.145 frystyk 130: if (status == HT_INTERRUPTED || status == HT_RECOVER_PIPE)
1.126 frystyk 131: (*input->isa->abort)(input, NULL);
1.94 frystyk 132: else
1.126 frystyk 133: (*input->isa->_free)(input);
134: HTRequest_setInputStream(req, NULL);
1.94 frystyk 135: }
1.88 frystyk 136:
1.144 frystyk 137: /*
1.157 frystyk 138: ** Remove if we have registered an upload function as a callback
139: */
140: if (http->timer) {
141: HTTimer_delete(http->timer);
142: http->timer = NULL;
143: }
144:
145: /*
1.144 frystyk 146: ** Remove the request object and our own context structure for http.
147: */
148: if (status != HT_RECOVER_PIPE) {
1.153 frystyk 149: HTNet_delete(net, status);
1.141 frystyk 150: HT_FREE(http);
151: }
1.94 frystyk 152: return YES;
1.55 frystyk 153: }
154:
1.71 frystyk 155: /*
1.130 frystyk 156: ** Informational 1xx codes are handled separately
1.136 frystyk 157: ** Returns YES if we should continue, NO if we should stop
1.55 frystyk 158: */
1.130 frystyk 159: PRIVATE BOOL HTTPInformation (HTStream * me)
1.55 frystyk 160: {
1.136 frystyk 161: http_info * http = me->http;
1.71 frystyk 162: switch (me->status) {
163:
1.136 frystyk 164: case 100:
1.161 frystyk 165: #if 0
1.136 frystyk 166: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CONTINUE,
167: me->reason, (int) strlen(me->reason),
168: "HTTPInformation");
1.161 frystyk 169: #endif
1.136 frystyk 170: return YES;
171: break;
172:
1.130 frystyk 173: case 101:
1.136 frystyk 174: /*
175: ** We consider 101 Switching as a final state and exit this request
176: */
1.130 frystyk 177: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_SWITCHING,
1.127 frystyk 178: me->reason, (int) strlen(me->reason),
1.130 frystyk 179: "HTTPInformation");
1.136 frystyk 180: http->next = HTTP_OK;
181: http->result = HT_UPGRADE;
1.127 frystyk 182: break;
183:
1.130 frystyk 184: default:
1.136 frystyk 185: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
186: (void *) me->buffer, me->buflen, "HTTPNextState");
187: http->next = HTTP_ERROR;
188: http->result = HT_ERROR;
1.127 frystyk 189: break;
1.130 frystyk 190: }
1.136 frystyk 191: return NO;
1.130 frystyk 192: }
193:
1.158 frystyk 194:
195:
1.130 frystyk 196: /*
197: ** This is a big switch handling all HTTP return codes. It puts in any
198: ** appropiate error message and decides whether we should expect data
199: ** or not.
200: */
201: PRIVATE void HTTPNextState (HTStream * me)
202: {
1.134 frystyk 203: http_info * http = me->http;
1.158 frystyk 204: int error_class = me->status / 100;
205: switch (error_class) {
1.127 frystyk 206:
1.158 frystyk 207: case 0: /* 0.9 response */
208: case 2:
1.112 frystyk 209:
1.158 frystyk 210: switch (me->status) {
1.112 frystyk 211:
1.158 frystyk 212: case 201: /* Created */
213: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CREATED,
214: me->reason, (int) strlen(me->reason),
215: "HTTPNextState");
216: http->next = HTTP_OK;
217: http->result = HT_CREATED;
218: break;
219:
220: case 202: /* Accepted */
221: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_ACCEPTED,
222: me->reason, (int) strlen(me->reason),
223: "HTTPNextState");
224: http->next = HTTP_OK;
225: http->result = HT_ACCEPTED;
226: break;
227:
228: case 203: /* Non-authoritative information */
229: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NON_AUTHORITATIVE,
230: me->reason, (int) strlen(me->reason),
231: "HTTPNextState");
232: http->next = HTTP_OK;
233: http->result = HT_LOADED;
234: break;
235:
236: case 204: /* No Response */
237: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NO_CONTENT,
238: me->reason, (int) strlen(me->reason),
239: "HTTPNextState");
240: http->next = HTTP_OK;
241: http->result = HT_NO_DATA;
242: break;
243:
244: case 205: /* Reset Content */
245: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_RESET,
246: me->reason, (int) strlen(me->reason),
247: "HTTPNextState");
248: http->next = HTTP_OK;
249: http->result = HT_RESET_CONTENT;
250: break;
251:
252: case 206: /* Partial Content */
253: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL,
254: me->reason, (int) strlen(me->reason),
255: "HTTPNextState");
256: http->next = HTTP_OK;
257: http->result = HT_PARTIAL_CONTENT;
258: break;
259:
260: case 207: /* Partial Update OK */
261: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL_OK,
262: me->reason, (int) strlen(me->reason),
263: "HTTPNextState");
264: http->next = HTTP_OK;
265: http->result = HT_PARTIAL_CONTENT;
266: break;
267:
268: default:
269: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_OK,
270: me->reason, (int) strlen(me->reason),
271: "HTTPNextState");
272: http->next = HTTP_OK;
273: http->result = HT_LOADED;
274: break;
275: }
1.134 frystyk 276: break;
277:
1.158 frystyk 278: case 3:
1.134 frystyk 279:
1.158 frystyk 280: switch (me->status) {
1.78 frystyk 281:
1.158 frystyk 282: case 301: /* Moved */
283: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MOVED,
284: me->reason, (int) strlen(me->reason),
285: "HTTPNextState");
286: http->next = HTTP_ERROR;
287: http->result = HT_PERM_REDIRECT;
288: break;
289:
290: case 302: /* Found */
291: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_FOUND,
292: me->reason, (int) strlen(me->reason),
293: "HTTPNextState");
294: http->next = HTTP_ERROR;
295: http->result = HT_FOUND;
296: break;
1.55 frystyk 297:
1.158 frystyk 298: case 303: /* Method */
299: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_METHOD,
300: me->reason, (int) strlen(me->reason),
301: "HTTPNextState");
302: http->next = HTTP_ERROR;
303: http->result = HT_SEE_OTHER;
304: break;
305:
306: case 304: /* Not Modified */
307: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NOT_MODIFIED,
308: me->reason, (int) strlen(me->reason),
309: "HTTPNextState");
310: http->next = HTTP_OK;
311: http->result = HT_NOT_MODIFIED;
312: break;
1.134 frystyk 313:
1.158 frystyk 314: case 305: /* Use proxy */
315: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_USE_PROXY,
316: me->reason, (int) strlen(me->reason),
317: "HTTPNextState");
318: http->next = HTTP_ERROR;
319: http->result = HT_USE_PROXY;
320: break;
1.55 frystyk 321:
1.152 frystyk 322: #if 0
1.158 frystyk 323: case 306: /* Use proxy */
324: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PROXY_REDIRECT,
325: me->reason, (int) strlen(me->reason),
326: "HTTPNextState");
327: http->next = HTTP_ERROR;
328: http->result = HT_USE_PROXY;
329: break;
1.152 frystyk 330: #endif
331:
1.158 frystyk 332: case 307: /* Use proxy */
333: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_TEMP_REDIRECT,
334: me->reason, (int) strlen(me->reason),
335: "HTTPNextState");
336: http->next = HTTP_ERROR;
337: http->result = HT_TEMP_REDIRECT;
338: break;
339:
340: default:
341: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MULTIPLE,
342: me->reason, (int) strlen(me->reason),
343: "HTTPNextState");
344: http->next = HTTP_OK;
345: http->result = HT_LOADED;
346: break;
347: }
348: break;
349:
350: case 4:
351:
352: switch (me->status) {
353: case 401:
354: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNAUTHORIZED,
355: me->reason, (int) strlen(me->reason), "HTTPNextState");
356: http->next = HTTP_ERROR;
357: http->result = HT_NO_ACCESS;
358: break;
1.152 frystyk 359:
1.158 frystyk 360: case 402: /* Payment required */
361: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PAYMENT_REQUIRED,
362: me->reason, (int) strlen(me->reason), "HTTPNextState");
363: http->next = HTTP_ERROR;
364: http->result = -402;
365: break;
1.71 frystyk 366:
1.158 frystyk 367: case 403: /* Forbidden */
368: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_FORBIDDEN,
369: me->reason, (int) strlen(me->reason), "HTTPNextState");
370: http->next = HTTP_ERROR;
371: http->result = HT_FORBIDDEN;
372: break;
1.55 frystyk 373:
1.158 frystyk 374: case 404: /* Not Found */
375: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_FOUND,
376: me->reason, (int) strlen(me->reason), "HTTPNextState");
377: http->next = HTTP_ERROR;
378: http->result = -404;
379: break;
1.55 frystyk 380:
1.158 frystyk 381: case 405: /* Not Allowed */
382: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_ALLOWED,
383: me->reason, (int) strlen(me->reason), "HTTPNextState");
384: http->next = HTTP_ERROR;
385: http->result = -405;
386: break;
387:
388: case 406: /* None Acceptable */
389: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NONE_ACCEPTABLE,
390: me->reason, (int) strlen(me->reason), "HTTPNextState");
391: http->next = HTTP_ERROR;
392: http->result = HT_NOT_ACCEPTABLE;
393: break;
394:
395: case 407: /* Proxy Authentication Required */
396: HTRequest_addError(me->request, ERR_FATAL, NO,HTERR_PROXY_UNAUTHORIZED,
397: me->reason, (int) strlen(me->reason), "HTTPNextState");
398: http->next = HTTP_ERROR;
399: http->result = HT_NO_PROXY_ACCESS;
400: break;
401:
402: case 408: /* Request Timeout */
403: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TIMEOUT,
404: me->reason, (int) strlen(me->reason), "HTTPNextState");
405: http->next = HTTP_ERROR;
406: http->result = -408;
407: break;
408:
409: case 409: /* Conflict */
410: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_CONFLICT,
411: me->reason, (int) strlen(me->reason), "HTTPNextState");
412: http->next = HTTP_ERROR;
413: http->result = HT_CONFLICT;
414: break;
415:
416: case 410: /* Gone */
417: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GONE,
418: me->reason, (int) strlen(me->reason), "HTTPNextState");
419: http->next = HTTP_ERROR;
420: http->result = -410;
421: break;
422:
423: case 411: /* Length Required */
424: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_LENGTH_REQUIRED,
425: me->reason, (int) strlen(me->reason), "HTTPNextState");
426: http->next = HTTP_ERROR;
427: http->result = HT_LENGTH_REQUIRED;
428: break;
429:
430: case 412: /* Precondition failed */
431: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PRECON_FAILED,
432: me->reason, (int) strlen(me->reason), "HTTPNextState");
433: http->next = HTTP_ERROR;
434: http->result = -412;
435: break;
436:
437: case 413: /* Request entity too large */
438: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TOO_BIG,
439: me->reason, (int) strlen(me->reason), "HTTPNextState");
440: http->next = HTTP_ERROR;
441: http->result = -413;
442: break;
443:
444: case 414: /* Request-URI too long */
445: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_URI_TOO_BIG,
446: me->reason, (int) strlen(me->reason), "HTTPNextState");
447: http->next = HTTP_ERROR;
448: http->result = -414;
449: break;
450:
451: case 415: /* Unsupported */
452: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNSUPPORTED,
453: me->reason, (int) strlen(me->reason), "HTTPNextState");
454: http->next = HTTP_ERROR;
455: http->result = -415;
456: break;
457:
458: case 416: /* Request Range not satisfiable */
459: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_RANGE,
460: me->reason, (int) strlen(me->reason), "HTTPNextState");
461: http->next = HTTP_ERROR;
462: http->result = -416;
463: break;
464:
465: case 417: /* Expectation Failed */
466: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_EXPECTATION_FAILED,
467: me->reason, (int) strlen(me->reason), "HTTPNextState");
468: http->next = HTTP_ERROR;
469: http->result = -417;
470: break;
471:
472: case 418: /* Reauthentication required */
473: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_REAUTH,
474: me->reason, (int) strlen(me->reason), "HTTPNextState");
475: http->next = HTTP_ERROR;
476: http->result = -418;
477: break;
478:
479: case 419: /* Proxy Reauthentication required */
480: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PROXY_REAUTH,
481: me->reason, (int) strlen(me->reason), "HTTPNextState");
482: http->next = HTTP_ERROR;
483: http->result = -419;
484: break;
485:
486: default:
487: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REQUEST,
488: me->reason, (int) strlen(me->reason), "HTTPNextState");
489: http->next = HTTP_ERROR;
490: http->result = -400;
491: break;
492: }
1.134 frystyk 493: break;
494:
1.158 frystyk 495: case 5:
1.134 frystyk 496:
1.158 frystyk 497: switch (me->status) {
498: case 501:
499: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_IMPLEMENTED,
500: me->reason, (int) strlen(me->reason), "HTTPNextState");
501: http->next = HTTP_ERROR;
502: http->result = -501;
503: break;
504:
505: case 502:
506: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_GATE,
507: me->reason, (int) strlen(me->reason), "HTTPNextState");
508: http->next = HTTP_ERROR;
509: http->result = -502;
510: break;
511:
512: case 503:
513: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_DOWN,
514: me->reason, (int) strlen(me->reason), "HTTPNextState");
515: http->next = HTTP_ERROR;
516:
517: /*
518: ** If Retry-After header is found then return HT_RETRY else HT_ERROR.
519: ** The caller may want to reissue the request at a later point in time.
520: */
521: {
522: HTResponse * response = HTRequest_response(me->request);
523: if (HTResponse_retryTime(response))
524: http->result = HT_RETRY;
525: else
526: http->result = -500;
527: }
528: break;
529:
530: case 504:
531: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GATE_TIMEOUT,
532: me->reason, (int) strlen(me->reason), "HTTPNextState");
533: http->next = HTTP_ERROR;
534: http->result = -504;
535: break;
536:
537: case 505: /* Unsupported protocol version */
538: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_VERSION,
539: me->reason, (int) strlen(me->reason), "HTTPNextState");
540: http->next = HTTP_ERROR;
541: http->result = HT_BAD_VERSION;
542: break;
543:
544: case 506: /* Partial update Not Implemented */
545: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NO_PARTIAL_UPDATE,
546: me->reason, (int) strlen(me->reason), "HTTPNextState");
547: http->next = HTTP_ERROR;
548: http->result = HT_BAD_VERSION;
549: break;
550:
551: default: /* bad number */
552: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_INTERNAL,
553: me->reason, (int) strlen(me->reason), "HTTPNextState");
554: http->next = HTTP_ERROR;
555: http->result = -500;
556: break;
1.140 frystyk 557: }
1.78 frystyk 558: break;
559:
1.158 frystyk 560: default:
1.104 frystyk 561: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
1.158 frystyk 562: (void *) me->buffer, me->buflen, "HTTPNextState");
1.134 frystyk 563: http->next = HTTP_ERROR;
1.155 frystyk 564: http->result = -(me->status);
1.71 frystyk 565: break;
1.55 frystyk 566: }
567: }
568:
1.71 frystyk 569: /* ------------------------------------------------------------------------- */
570: /* HTTP Status Line Stream */
571: /* ------------------------------------------------------------------------- */
1.55 frystyk 572:
1.71 frystyk 573: /*
1.141 frystyk 574: ** Analyze the stream we have read. If it is a HTTP 1.0 or higher
1.71 frystyk 575: ** then create a MIME-stream, else create a Guess stream to find out
576: ** what the 0.9 server is sending. We need to copy the buffer as we don't
577: ** know if we can modify the contents or not.
1.78 frystyk 578: **
579: ** Stream handling is a function of the status code returned from the
580: ** server:
581: ** 200: Use `output_stream' in HTRequest structure
1.94 frystyk 582: ** else: Use `debug_stream' in HTRequest structure
1.80 frystyk 583: **
584: ** Return: YES if buffer should be written out. NO otherwise
1.56 frystyk 585: */
1.157 frystyk 586: PRIVATE int stream_pipe (HTStream * me, int length)
1.56 frystyk 587: {
1.136 frystyk 588: HTRequest * request = me->request;
589: HTNet * net = HTRequest_net(request);
1.123 frystyk 590: HTHost * host = HTNet_host(net);
1.141 frystyk 591:
1.153 frystyk 592: #if 0
593: {
594: char * uri = HTAnchor_address((HTAnchor *) HTRequest_anchor(request));
595: fprintf(stderr, "HTTP header: %s for '%s'\n", me->buffer, uri);
596: HT_FREE(uri);
597: }
598: #endif
599:
1.132 frystyk 600: /*
601: ** Just check for HTTP and not HTTP/ as NCSA server chokes on 1.1 replies
602: ** Thanks to Markku Savela <msa@msa.tte.vtt.fi>
1.141 frystyk 603:
1.132 frystyk 604: */
605: if (strncasecomp(me->buffer, "http", 4)) {
1.80 frystyk 606: int status;
1.136 frystyk 607: HTRequest_addError(request, ERR_INFO, NO, HTERR_HTTP09,
1.80 frystyk 608: (void *) me->buffer, me->buflen, "HTTPStatusStream");
1.136 frystyk 609: me->target = HTStreamStack(WWW_UNKNOWN,
610: HTRequest_outputFormat(request),
611: HTRequest_outputStream(request),
612: request, NO);
1.134 frystyk 613: me->http->next = HTTP_OK;
1.80 frystyk 614: if ((status = PUTBLOCK(me->buffer, me->buflen)) == HT_OK)
615: me->transparent = YES;
1.123 frystyk 616: HTHost_setVersion(host, HTTP_09);
1.157 frystyk 617: if (length > 0) HTHost_setConsumed(host, length);
1.80 frystyk 618: return status;
619: } else {
1.140 frystyk 620: HTResponse * response = HTRequest_response(request);
1.155 frystyk 621: char * ptr = me->buffer+5; /* Skip the HTTP part */
622: char * vptr = NULL;
623: int major = 0;
624: int minor = 0;
625: me->version = vptr = HTNextField(&ptr);
626: if (vptr) {
627: major = (int) strtol(me->version, &vptr, 10);
628: if (vptr++) minor = strtol(vptr, NULL, 10);
629: }
1.95 frystyk 630:
1.130 frystyk 631: /* Here we want to find out when to use persistent connection */
1.155 frystyk 632: if (major > 1) {
633: if (PROT_TRACE)HTTrace("HTTP Status. Major version number is %d\n", major);
634: me->target = HTErrorStream();
1.158 frystyk 635: me->status = 9999;
1.155 frystyk 636: HTTPNextState(me); /* Get next state */
1.158 frystyk 637: return HT_ERROR;
1.155 frystyk 638: } else if (minor <= 0) {
639: if (PROT_TRACE)HTTrace("HTTP Status. This is an HTTP/1.0 server\n");
1.128 frystyk 640: HTHost_setVersion(host, HTTP_10);
1.155 frystyk 641: } else { /* 1.x, x>0 family */
642: HTHost_setVersion(host, HTTP_11); /* Best we can do */
1.156 frystyk 643: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
644: if (PROT_TRACE)
645: HTTrace("HTTP........ Mode is HTTP/1.1 with NO PIPELINING\n");
1.147 frystyk 646: HTNet_setPersistent(net, YES, HT_TP_SINGLE);
1.156 frystyk 647: } else if (ConnectionMode & HTTP_11_MUX) {
648: if (PROT_TRACE)
649: HTTrace("HTTP........ Mode is HTTP/1.1 with MUXING\n");
650: HTNet_setPersistent(net, YES, HT_TP_INTERLEAVE);
1.147 frystyk 651: } else if (ConnectionMode & HTTP_FORCE_10) {
652: if (PROT_TRACE) HTTrace("HTTP........ Mode is FORCE HTTP/1.0\n");
653: HTHost_setVersion(host, HTTP_10);
654: HTNet_setPersistent(net, NO, HT_TP_SINGLE);
655: } else
656: HTNet_setPersistent(net, YES, HT_TP_PIPELINE);
1.128 frystyk 657: }
1.95 frystyk 658:
1.81 frystyk 659: me->status = atoi(HTNextField(&ptr));
660: me->reason = ptr;
661: if ((ptr = strchr(me->reason, '\r')) != NULL) /* Strip \r and \n */
662: *ptr = '0円';
663: else if ((ptr = strchr(me->reason, '\n')) != NULL)
664: *ptr = '0円';
665:
1.130 frystyk 666: /*
667: ** If it is a 1xx code then find out what to do and return until we
668: ** get the next code. In the case of Upgrade we may not get back here
669: ** at all. If we are uploading an entity then continue doing that
670: */
671: if (me->status/100 == 1) {
1.136 frystyk 672: if (HTTPInformation(me) == YES) {
673: me->buflen = 0;
674: me->state = EOL_BEGIN;
1.157 frystyk 675: if (me->info_target) (*me->info_target->isa->_free)(me->info_target);
676: me->info_target = HTStreamStack(WWW_MIME_CONT,
677: HTRequest_debugFormat(request),
678: HTRequest_debugStream(request),
679: request, NO);
680: if (length > 0) HTHost_setConsumed(host, length);
681: return HT_OK;
1.103 frystyk 682: }
1.56 frystyk 683: }
1.133 frystyk 684:
685: /*
686: ** As we are getting fresh metainformation in the HTTP response,
687: ** we clear the old metainfomation in order not to mix it with the new
688: ** one. This is particularly important for the content-length and the
1.139 frystyk 689: ** like. The TRACE and OPTIONS method just adds to the current
690: ** metainformation so in that case we don't clear the anchor.
1.133 frystyk 691: */
1.136 frystyk 692: if (me->status==200 || me->status==203 || me->status==300) {
1.140 frystyk 693: /*
694: ** 200, 203 and 300 are all fully cacheable responses. No byte
695: ** ranges or anything else make life hard in this case.
696: */
1.148 frystyk 697: HTAnchor_clearHeader(HTRequest_anchor(request));
1.140 frystyk 698: HTResponse_setCachable(response, YES);
1.136 frystyk 699: me->target = HTStreamStack(WWW_MIME,
700: HTRequest_outputFormat(request),
701: HTRequest_outputStream(request),
702: request, NO);
1.140 frystyk 703: } else if (me->status==206) {
704: /*
705: ** We got a partial response and now we must check whether
706: ** we issued a cache If-Range request or it was a new
707: ** partial response which we don't have in cache. In the latter
708: ** case, we don't cache the object and in the former we append
709: ** the result to the already existing cache entry.
710: */
711: HTReload reload = HTRequest_reloadMode(request);
712: if (reload == HT_CACHE_RANGE_VALIDATE) {
713: HTResponse_setCachable(response, YES);
714: me->target = HTStreamStack(WWW_MIME_PART,
715: HTRequest_outputFormat(request),
716: HTRequest_outputStream(request),
717: request, NO);
718: } else {
1.149 frystyk 719: HTAnchor_clearHeader(HTRequest_anchor(request));
1.140 frystyk 720: me->target = HTStreamStack(WWW_MIME,
721: HTRequest_outputFormat(request),
722: HTRequest_outputStream(request),
723: request, NO);
724: }
1.139 frystyk 725: } else if (me->status==204 || me->status==304) {
1.140 frystyk 726: HTResponse_setCachable(response, YES);
1.136 frystyk 727: me->target = HTStreamStack(WWW_MIME_HEAD,
728: HTRequest_debugFormat(request),
729: HTRequest_debugStream(request),
730: request, NO);
731: } else if (HTRequest_debugStream(request)) {
732: me->target = HTStreamStack(WWW_MIME,
733: HTRequest_debugFormat(request),
734: HTRequest_debugStream(request),
735: request, NO);
736: } else {
1.140 frystyk 737: /*
738: ** We still need to parse the MIME part in order to find any
739: ** valuable meta information which is needed from the response.
740: */
1.136 frystyk 741: me->target = HTStreamStack(WWW_MIME,
742: HTRequest_debugFormat(request),
743: HTRequest_debugStream(request),
744: request, NO);
1.133 frystyk 745: }
1.56 frystyk 746: }
1.113 frystyk 747: if (!me->target) me->target = HTErrorStream();
1.81 frystyk 748: HTTPNextState(me); /* Get next state */
1.80 frystyk 749: me->transparent = YES;
1.157 frystyk 750: if (length > 0) HTHost_setConsumed(HTNet_host(HTRequest_net(me->request)), length);
1.80 frystyk 751: return HT_OK;
1.71 frystyk 752: }
1.56 frystyk 753:
1.80 frystyk 754: /*
755: ** Searches for HTTP header line until buffer fills up or a CRLF or LF
756: ** is found
757: */
1.119 frystyk 758: PRIVATE int HTTPStatus_put_block (HTStream * me, const char * b, int l)
1.71 frystyk 759: {
1.150 frystyk 760: int status = HT_OK;
1.153 frystyk 761: int length = l;
1.146 frystyk 762: me->startLen = me->buflen;
1.80 frystyk 763: while (!me->transparent && l-- > 0) {
1.157 frystyk 764: if (me->info_target) {
765:
766: /* Put data down the 1xx return code parser until we are done. */
767: status = (*me->info_target->isa->put_block)(me->info_target, b, l+1);
768: if (status != HT_CONTINUE) return status;
769:
770: /* Now free the info stream */
771: (*me->info_target->isa->_free)(me->info_target);
772: me->info_target = NULL;
773:
774: /* Update where we are in the stream */
775: l = HTHost_remainingRead(HTNet_host(HTRequest_net(me->request)));
1.163 ! frystyk 776: b += (length-l);
1.159 frystyk 777: length = l;
1.163 ! frystyk 778: if (l <= 0) break;
1.157 frystyk 779:
1.80 frystyk 780: } else {
781: *(me->buffer+me->buflen++) = *b;
782: if (me->state == EOL_FCR) {
783: if (*b == LF) { /* Line found */
1.157 frystyk 784: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 785: } else {
786: me->state = EOL_BEGIN;
787: }
788: } else if (*b == CR) {
789: me->state = EOL_FCR;
790: } else if (*b == LF) {
1.157 frystyk 791: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.71 frystyk 792: } else {
1.80 frystyk 793: if (me->buflen >= MAX_STATUS_LEN) {
1.157 frystyk 794: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 795: }
1.71 frystyk 796: }
1.80 frystyk 797: b++;
1.71 frystyk 798: }
1.56 frystyk 799: }
1.153 frystyk 800:
1.159 frystyk 801: if (!me->transparent && length != l)
802: HTHost_setConsumed(HTNet_host(HTRequest_net(me->request)), length-l);
803:
1.99 frystyk 804: if (l > 0) return PUTBLOCK(b, l);
1.150 frystyk 805: return status;
1.56 frystyk 806: }
807:
1.119 frystyk 808: PRIVATE int HTTPStatus_put_string (HTStream * me, const char * s)
1.71 frystyk 809: {
1.80 frystyk 810: return HTTPStatus_put_block(me, s, (int) strlen(s));
1.71 frystyk 811: }
1.56 frystyk 812:
1.100 frystyk 813: PRIVATE int HTTPStatus_put_character (HTStream * me, char c)
1.71 frystyk 814: {
1.80 frystyk 815: return HTTPStatus_put_block(me, &c, 1);
816: }
817:
1.100 frystyk 818: PRIVATE int HTTPStatus_flush (HTStream * me)
1.80 frystyk 819: {
820: return (*me->target->isa->flush)(me->target);
1.71 frystyk 821: }
822:
1.100 frystyk 823: PRIVATE int HTTPStatus_free (HTStream * me)
1.71 frystyk 824: {
1.87 frystyk 825: int status = HT_OK;
826: if (me->target) {
827: if ((status = (*me->target->isa->_free)(me->target))==HT_WOULD_BLOCK)
828: return HT_WOULD_BLOCK;
829: }
1.115 frystyk 830: HT_FREE(me);
1.100 frystyk 831: return status;
1.71 frystyk 832: }
833:
1.104 frystyk 834: PRIVATE int HTTPStatus_abort (HTStream * me, HTList * e)
1.71 frystyk 835: {
836: if (me->target)
1.74 frystyk 837: ABORT_TARGET;
1.115 frystyk 838: HT_FREE(me);
1.74 frystyk 839: if (PROT_TRACE)
1.116 eric 840: HTTrace("HTTPStatus.. ABORTING...\n");
1.80 frystyk 841: return HT_ERROR;
1.71 frystyk 842: }
843:
844: /* HTTPStatus Stream
845: ** -----------------
846: */
1.119 frystyk 847: PRIVATE const HTStreamClass HTTPStatusClass =
1.71 frystyk 848: {
849: "HTTPStatus",
1.80 frystyk 850: HTTPStatus_flush,
1.71 frystyk 851: HTTPStatus_free,
852: HTTPStatus_abort,
853: HTTPStatus_put_character,
854: HTTPStatus_put_string,
855: HTTPStatus_put_block
856: };
857:
1.113 frystyk 858: PUBLIC HTStream * HTTPStatus_new (HTRequest * request,
859: void * param,
860: HTFormat input_format,
861: HTFormat output_format,
862: HTStream * output_stream)
1.71 frystyk 863: {
1.115 frystyk 864: HTStream * me;
865: if ((me = (HTStream *) HT_CALLOC(1, sizeof(HTStream))) == NULL)
866: HT_OUTOFMEM("HTTPStatus_new");
1.71 frystyk 867: me->isa = &HTTPStatusClass;
1.113 frystyk 868: if (request) {
1.126 frystyk 869: HTNet * net = HTRequest_net(request);
1.125 frystyk 870: /* Get existing copy */
871: http_info * http = (http_info *) HTNet_context(net);
1.113 frystyk 872: me->request = request;
873: me->http = http;
874: http->next = HTTP_ERROR;
875: me->state = EOL_BEGIN;
876: return me;
877: } else
878: return HTErrorStream();
1.71 frystyk 879: }
880:
881: /* ------------------------------------------------------------------------- */
882:
883: /* Load Document from HTTP Server HTLoadHTTP
1.55 frystyk 884: ** ==============================
885: **
886: ** Given a hypertext address, this routine loads a document.
887: **
888: ** On entry,
889: ** request This is the request structure
1.94 frystyk 890: ** returns HT_ERROR Error has occured in call back
891: ** HT_OK Call back was OK
1.55 frystyk 892: */
1.141 frystyk 893: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type);
894:
895: PUBLIC int HTLoadHTTP (SOCKET soc, HTRequest * request)
1.55 frystyk 896: {
897: http_info *http; /* Specific protocol information */
1.112 frystyk 898: HTParentAnchor *anchor = HTRequest_anchor(request);
1.141 frystyk 899: HTNet * net = HTRequest_net(request);
1.112 frystyk 900:
1.94 frystyk 901: /*
902: ** Initiate a new http structure and bind to request structure
903: ** This is actually state HTTP_BEGIN, but it can't be in the state
904: ** machine as we need the structure first.
905: */
1.141 frystyk 906: if (PROT_TRACE) HTTrace("HTTP........ Looking for `%s\'\n",
907: HTAnchor_physical(anchor));
908: if ((http = (http_info *) HT_CALLOC(1, sizeof(http_info))) == NULL)
909: HT_OUTOFMEM("HTLoadHTTP");
910: http->net = net;
1.157 frystyk 911: http->request = request;
1.141 frystyk 912: HTNet_setContext(net, http);
913: HTNet_setEventCallback(net, HTTPEvent);
914: HTNet_setEventParam(net, http); /* callbacks get http* */
915:
1.157 frystyk 916: return HTTPEvent(soc, http, HTEvent_BEGIN); /* get it started - ops is ignored */
917: }
918:
919: PRIVATE int FlushPutEvent (HTTimer * timer, void * param, HTEventType type)
920: {
921: http_info * http = (http_info *) param;
922: HTStream * input = HTRequest_inputStream(http->request);
923: HTPostCallback * pcbf = HTRequest_postCallback(http->request);
924:
1.160 frystyk 925: if (timer != http->timer)
926: HTDebugBreak(__FILE__, __LINE__, "HTTP timer %p not in sync\n", timer);
1.157 frystyk 927: if (PROT_TRACE) HTTrace("Uploading... Flushing %p with timer %p\n", http, timer);
928:
929: /*
930: ** We ignore the return code here which we shouldn't!!!
931: */
932: if (http && input && pcbf) (*pcbf)(http->request, input);
933:
934: /*
935: ** Delete the timer
936: */
937: http->timer = NULL;
938: return HT_OK;
1.141 frystyk 939: }
940:
941: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type)
942: {
943: http_info * http = (http_info *)pVoid;
944: int status = HT_ERROR;
945: HTNet * net = http->net;
946: HTRequest * request = HTNet_request(net);
1.144 frystyk 947: HTParentAnchor * anchor = HTRequest_anchor(request);
948: HTHost * host = HTNet_host(net);
1.141 frystyk 949:
950: /*
951: ** Check whether we have been interrupted
952: */
953: if (type == HTEvent_BEGIN) {
1.134 frystyk 954: http->next = HTTP_OK;
955: http->result = HT_ERROR;
1.141 frystyk 956: } else if (type == HTEvent_CLOSE) {
1.112 frystyk 957: HTRequest_addError(request, ERR_FATAL, NO, HTERR_INTERRUPTED,
958: NULL, 0, "HTLoadHTTP");
959: HTTPCleanup(request, HT_INTERRUPTED);
1.94 frystyk 960: return HT_OK;
1.141 frystyk 961: } else if (type == HTEvent_END) {
962: HTTPCleanup(request, http->result);
963: return HT_OK;
964: } else if (type == HTEvent_RESET) {
965: HTTPCleanup(request, HT_RECOVER_PIPE);
1.145 frystyk 966: http->state = HTTP_BEGIN;
1.141 frystyk 967: return HT_OK;
968: }
969:
1.71 frystyk 970: /* Now jump into the machine. We know the state from the previous run */
971: while (1) {
972: switch (http->state) {
1.134 frystyk 973: case HTTP_BEGIN:
1.144 frystyk 974: status = HTHost_connect(host, net, HTAnchor_physical(anchor), HTTP_PORT);
975: host = HTNet_host(net);
1.153 frystyk 976: if (status == HT_OK) {
1.140 frystyk 977:
1.123 frystyk 978: /*
1.140 frystyk 979: ** Check the protocol class to see if we have connected to a
980: ** the right class of server, in this case HTTP. If we don't
981: ** know the server then assume a HTTP/1.0
1.123 frystyk 982: */
983: {
984: char * s_class = HTHost_class(host);
1.140 frystyk 985: if (!s_class) {
986: if (HTRequest_proxy(request) == NULL)
987: HTRequest_addConnection(request, "Keep-Alive", "");
988: HTHost_setClass(host, "http");
989: } else if (strcasecomp(s_class, "http")) {
1.123 frystyk 990: HTRequest_addError(request, ERR_FATAL, NO, HTERR_CLASS,
991: NULL, 0, "HTLoadHTTP");
992: http->state = HTTP_ERROR;
993: break;
994: }
1.95 frystyk 995: }
1.147 frystyk 996:
1.156 frystyk 997: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
1.147 frystyk 998: if (PROT_TRACE) HTTrace("HTTP........ Mode is HTTP/1.1 WITH NO PIPELINING\n");
999: HTRequest_setFlush(request, YES);
1000: } else if (ConnectionMode & HTTP_FORCE_10) {
1001: if (PROT_TRACE) HTTrace("HTTP........ Mode is FORCE HTTP/1.0\n");
1002: HTHost_setVersion(host, HTTP_10);
1003: }
1004:
1.151 frystyk 1005: if (HTNet_preemptive(net)) {
1006: if (PROT_TRACE) HTTrace("HTTP........ Force flush on preemptive load\n");
1007: HTRequest_setFlush(request, YES);
1008: }
1009:
1.147 frystyk 1010: /* Jump to next state */
1.144 frystyk 1011: http->state = HTTP_NEED_STREAM;
1.159 frystyk 1012: } else if (status == HT_WOULD_BLOCK || status == HT_PENDING) {
1.144 frystyk 1013: return HT_OK;
1.159 frystyk 1014: } else
1.144 frystyk 1015: http->state = HTTP_ERROR; /* Error or interrupt */
1016: break;
1017:
1018: case HTTP_NEED_STREAM:
1.138 frystyk 1019:
1.144 frystyk 1020: /*
1021: ** Create the stream pipe FROM the channel to the application.
1022: ** The target for the input stream pipe is set up using the
1023: ** stream stack.
1024: */
1.153 frystyk 1025: {
1.144 frystyk 1026: HTStream *me=HTStreamStack(WWW_HTTP,
1027: HTRequest_outputFormat(request),
1028: HTRequest_outputStream(request),
1029: request, YES);
1030: HTNet_setReadStream(net, me);
1031: HTRequest_setOutputConnected(request, YES);
1032: }
1.127 frystyk 1033:
1.144 frystyk 1034: /*
1035: ** Create the stream pipe TO the channel from the application
1036: ** and hook it up to the request object
1037: */
1038: {
1039: HTChannel * channel = HTHost_channel(host);
1040: HTOutputStream * output = HTChannel_getChannelOStream(channel);
1041: int version = HTHost_version(host);
1042: HTStream * app = NULL;
1043:
1.139 frystyk 1044: #ifdef HTTP_DUMP
1.144 frystyk 1045: if (PROT_TRACE) {
1.162 frystyk 1046: if (!htfp) htfp = fopen(HTTP_OUTPUT, "ab");
1047: if (htfp) {
1.144 frystyk 1048: output = (HTOutputStream *)
1.162 frystyk 1049: HTTee((HTStream *) output, HTFWriter_new(request, htfp, YES), NULL);
1.147 frystyk 1050: HTTrace("HTTP........ Dumping request to `%s\'\n", HTTP_OUTPUT);
1.144 frystyk 1051: }
1052: }
1.139 frystyk 1053: #endif /* HTTP_DUMP */
1.144 frystyk 1054: app = HTMethod_hasEntity(HTRequest_method(request)) ?
1055: HTMIMERequest_new(request,
1056: HTTPRequest_new(request, (HTStream *) output, NO,
1057: version),
1058: YES) :
1059: HTTPRequest_new(request, (HTStream *) output, YES, version);
1060: HTRequest_setInputStream(request, app);
1061: }
1.88 frystyk 1062:
1.144 frystyk 1063: /*
1064: ** Set up concurrent read/write if this request isn't the
1065: ** source for a PUT or POST. As source we don't start reading
1066: ** before all destinations are ready. If destination then
1067: ** register the input stream and get ready for read
1068: */
1069: if (HTRequest_isDestination(request)) {
1070: HTHost_register(host, net, HTEvent_READ);
1071: HTRequest_linkDestination(request);
1072: }
1073: http->state = HTTP_CONNECTED;
1074: type = HTEvent_WRITE; /* fresh, so try a write */
1.71 frystyk 1075: break;
1076:
1.87 frystyk 1077: /* As we can do simultanous read and write this is now one state */
1.141 frystyk 1078: case HTTP_CONNECTED:
1079: if (type == HTEvent_WRITE) {
1.157 frystyk 1080: HTStream * input = HTRequest_inputStream(request);
1081: HTPostCallback * pcbf = HTRequest_postCallback(request);
1082: status = HTRequest_flush(request) ?
1083: HTHost_forceFlush(host) : (*input->isa->flush)(input);
1084:
1085: /*
1086: ** Check to see if we are uploading something or just a normal
1087: ** GET kind of thing.
1088: */
1089: if (pcbf) {
1090: if (http->lock == NO) {
1091: int retrys = HTRequest_retrys(request);
1092: ms_t delay = retrys > 3 ? 3000 : 2000;
1093: if (!http->timer) {
1.162 frystyk 1094: http->timer = HTTimer_new(NULL, FlushPutEvent,
1095: http, delay, YES, NO);
1.157 frystyk 1096: if (PROT_TRACE)
1097: HTTrace("Uploading... Holding %p request for %lu ms\n",
1098: request, delay);
1099: HTHost_register(host, net, HTEvent_READ);
1100: }
1101: http->lock = YES;
1102: }
1103: type = HTEvent_READ;
1104: } else {
1105:
1106: /*
1107: ** Check to see if we can start a new request
1108: ** pending in the host object.
1109: */
1110: HTHost_launchPending(host);
1111: type = HTEvent_READ;
1112: }
1113:
1114: /* Now check the status code */
1115: if (status == HT_WOULD_BLOCK)
1116: return HT_OK;
1117: else if (status == HT_PAUSE || status == HT_LOADED) {
1118: type = HTEvent_READ;
1119: } else if (status==HT_CLOSED)
1120: http->state = HTTP_RECOVER_PIPE;
1121: else if (status == HT_ERROR) {
1122: http->result = HT_INTERRUPTED;
1123: http->state = HTTP_ERROR;
1124: break;
1125: }
1126: } else if (type == HTEvent_FLUSH) {
1127: HTStream * input = HTRequest_inputStream(request);
1128: if (input == NULL)
1129: return HT_ERROR;
1130: return (*input->isa->flush)(input);
1131: } else if (type == HTEvent_READ) {
1132: status = HTHost_read(host, net);
1133: if (status == HT_WOULD_BLOCK)
1134: return HT_OK;
1135: else if (status == HT_CONTINUE) {
1136: if (PROT_TRACE) HTTrace("HTTP........ Continuing\n");
1137: http->lock = NO;
1138: continue;
1139: } else if (status==HT_LOADED)
1140: http->state = http->next; /* Jump to next state (OK or ERROR) */
1141: else if (status==HT_CLOSED)
1142: http->state = HTTP_RECOVER_PIPE;
1143: else
1144: http->state = HTTP_ERROR;
1145: } else {
1146: http->state = HTTP_ERROR; /* don't know how to handle OOB */
1147: }
1148: break;
1.141 frystyk 1149:
1.134 frystyk 1150: case HTTP_OK:
1.88 frystyk 1151: if (HTRequest_isPostWeb(request)) {
1.91 frystyk 1152: if (HTRequest_isDestination(request)) {
1.126 frystyk 1153: HTRequest * source = HTRequest_source(request);
1.91 frystyk 1154: HTLink *link =
1.127 frystyk 1155: HTLink_find((HTAnchor *)HTRequest_anchor(source),
1.112 frystyk 1156: (HTAnchor *) anchor);
1.109 frystyk 1157: HTLink_setResult(link, HT_LINK_OK);
1.91 frystyk 1158: }
1.112 frystyk 1159: }
1.134 frystyk 1160: HTTPCleanup(request, http->result);
1.94 frystyk 1161: return HT_OK;
1.71 frystyk 1162: break;
1.141 frystyk 1163:
1164: case HTTP_RECOVER_PIPE:
1165: {
1166: /*
1167: ** If this is a persistent connection and we get a close
1168: ** then it is an error and we should recover from it by
1169: ** restarting the pipe line of requests if any
1170: */
1.151 frystyk 1171: if (HTHost_isPersistent(host) && !HTHost_closeNotification(host)) {
1.143 frystyk 1172: if (host == NULL) return HT_ERROR;
1.144 frystyk 1173: HTRequest_setFlush(request, YES);
1174: HTHost_recoverPipe(host);
1.162 frystyk 1175: #if 0
1176: /* Is handled from within HTHost_recoverPipe */
1.144 frystyk 1177: http->state = HTTP_BEGIN;
1178: HTHost_launchPending(host);
1.162 frystyk 1179: #endif
1.144 frystyk 1180: return HT_OK;
1.141 frystyk 1181: } else
1182: http->state = HTTP_OK;
1183: }
1.143 frystyk 1184: break;
1.141 frystyk 1185:
1.71 frystyk 1186: case HTTP_ERROR:
1.143 frystyk 1187: if (HTRequest_isPostWeb(request)) {
1188: if (HTRequest_isDestination(request)) {
1189: HTRequest * source = HTRequest_source(request);
1190: HTLink *link =
1191: HTLink_find((HTAnchor *)HTRequest_anchor(source),
1192: (HTAnchor *) anchor);
1193: HTLink_setResult(link, HT_LINK_ERROR);
1194: }
1195: HTRequest_killPostWeb(request);
1196: }
1197: HTTPCleanup(request, http->result);
1198: return HT_OK;
1199: break;
1200:
1.141 frystyk 1201: default:
1.160 frystyk 1202: HTDebugBreak(__FILE__, __LINE__, "Bad http state %d\n", http->state);
1.71 frystyk 1203: }
1204: } /* End of while(1) */
1205: }
1.88 frystyk 1206:
1.147 frystyk 1207: PUBLIC void HTTP_setConnectionMode (HTTPConnectionMode mode)
1208: {
1209: ConnectionMode = mode;
1210: }
1211:
1212: PUBLIC HTTPConnectionMode HTTP_connectionMode (void)
1213: {
1214: return ConnectionMode;
1215: }
1.21 luotonen 1216:
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