Annotation of libwww/Library/src/HTTP.c, revision 1.161
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.
1.161 ! frystyk 6: ** @(#) $Id: HTTP.c,v 1.160 1998年03月22日 21:39:45 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"
1.140 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:
1.161 ! frystyk 164: #if 0
1.136 frystyk 165: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CONTINUE,
166: me->reason, (int) strlen(me->reason),
167: "HTTPInformation");
1.161 ! frystyk 168: #endif
1.136 frystyk 169: return YES;
170: break;
171:
1.130 frystyk 172: case 101:
1.136 frystyk 173: /*
174: ** We consider 101 Switching as a final state and exit this request
175: */
1.130 frystyk 176: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_SWITCHING,
1.127 frystyk 177: me->reason, (int) strlen(me->reason),
1.130 frystyk 178: "HTTPInformation");
1.136 frystyk 179: http->next = HTTP_OK;
180: http->result = HT_UPGRADE;
1.127 frystyk 181: break;
182:
1.130 frystyk 183: default:
1.136 frystyk 184: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
185: (void *) me->buffer, me->buflen, "HTTPNextState");
186: http->next = HTTP_ERROR;
187: http->result = HT_ERROR;
1.127 frystyk 188: break;
1.130 frystyk 189: }
1.136 frystyk 190: return NO;
1.130 frystyk 191: }
192:
1.158 frystyk 193:
194:
1.130 frystyk 195: /*
196: ** This is a big switch handling all HTTP return codes. It puts in any
197: ** appropiate error message and decides whether we should expect data
198: ** or not.
199: */
200: PRIVATE void HTTPNextState (HTStream * me)
201: {
1.134 frystyk 202: http_info * http = me->http;
1.158 frystyk 203: int error_class = me->status / 100;
204: switch (error_class) {
1.127 frystyk 205:
1.158 frystyk 206: case 0: /* 0.9 response */
207: case 2:
1.112 frystyk 208:
1.158 frystyk 209: switch (me->status) {
1.112 frystyk 210:
1.158 frystyk 211: case 201: /* Created */
212: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CREATED,
213: me->reason, (int) strlen(me->reason),
214: "HTTPNextState");
215: http->next = HTTP_OK;
216: http->result = HT_CREATED;
217: break;
218:
219: case 202: /* Accepted */
220: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_ACCEPTED,
221: me->reason, (int) strlen(me->reason),
222: "HTTPNextState");
223: http->next = HTTP_OK;
224: http->result = HT_ACCEPTED;
225: break;
226:
227: case 203: /* Non-authoritative information */
228: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NON_AUTHORITATIVE,
229: me->reason, (int) strlen(me->reason),
230: "HTTPNextState");
231: http->next = HTTP_OK;
232: http->result = HT_LOADED;
233: break;
234:
235: case 204: /* No Response */
236: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NO_CONTENT,
237: me->reason, (int) strlen(me->reason),
238: "HTTPNextState");
239: http->next = HTTP_OK;
240: http->result = HT_NO_DATA;
241: break;
242:
243: case 205: /* Reset Content */
244: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_RESET,
245: me->reason, (int) strlen(me->reason),
246: "HTTPNextState");
247: http->next = HTTP_OK;
248: http->result = HT_RESET_CONTENT;
249: break;
250:
251: case 206: /* Partial Content */
252: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL,
253: me->reason, (int) strlen(me->reason),
254: "HTTPNextState");
255: http->next = HTTP_OK;
256: http->result = HT_PARTIAL_CONTENT;
257: break;
258:
259: case 207: /* Partial Update OK */
260: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL_OK,
261: me->reason, (int) strlen(me->reason),
262: "HTTPNextState");
263: http->next = HTTP_OK;
264: http->result = HT_PARTIAL_CONTENT;
265: break;
266:
267: default:
268: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_OK,
269: me->reason, (int) strlen(me->reason),
270: "HTTPNextState");
271: http->next = HTTP_OK;
272: http->result = HT_LOADED;
273: break;
274: }
1.134 frystyk 275: break;
276:
1.158 frystyk 277: case 3:
1.134 frystyk 278:
1.158 frystyk 279: switch (me->status) {
1.78 frystyk 280:
1.158 frystyk 281: case 301: /* Moved */
282: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MOVED,
283: me->reason, (int) strlen(me->reason),
284: "HTTPNextState");
285: http->next = HTTP_ERROR;
286: http->result = HT_PERM_REDIRECT;
287: break;
288:
289: case 302: /* Found */
290: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_FOUND,
291: me->reason, (int) strlen(me->reason),
292: "HTTPNextState");
293: http->next = HTTP_ERROR;
294: http->result = HT_FOUND;
295: break;
1.55 frystyk 296:
1.158 frystyk 297: case 303: /* Method */
298: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_METHOD,
299: me->reason, (int) strlen(me->reason),
300: "HTTPNextState");
301: http->next = HTTP_ERROR;
302: http->result = HT_SEE_OTHER;
303: break;
304:
305: case 304: /* Not Modified */
306: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NOT_MODIFIED,
307: me->reason, (int) strlen(me->reason),
308: "HTTPNextState");
309: http->next = HTTP_OK;
310: http->result = HT_NOT_MODIFIED;
311: break;
1.134 frystyk 312:
1.158 frystyk 313: case 305: /* Use proxy */
314: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_USE_PROXY,
315: me->reason, (int) strlen(me->reason),
316: "HTTPNextState");
317: http->next = HTTP_ERROR;
318: http->result = HT_USE_PROXY;
319: break;
1.55 frystyk 320:
1.152 frystyk 321: #if 0
1.158 frystyk 322: case 306: /* Use proxy */
323: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PROXY_REDIRECT,
324: me->reason, (int) strlen(me->reason),
325: "HTTPNextState");
326: http->next = HTTP_ERROR;
327: http->result = HT_USE_PROXY;
328: break;
1.152 frystyk 329: #endif
330:
1.158 frystyk 331: case 307: /* Use proxy */
332: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_TEMP_REDIRECT,
333: me->reason, (int) strlen(me->reason),
334: "HTTPNextState");
335: http->next = HTTP_ERROR;
336: http->result = HT_TEMP_REDIRECT;
337: break;
338:
339: default:
340: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MULTIPLE,
341: me->reason, (int) strlen(me->reason),
342: "HTTPNextState");
343: http->next = HTTP_OK;
344: http->result = HT_LOADED;
345: break;
346: }
347: break;
348:
349: case 4:
350:
351: switch (me->status) {
352: case 401:
353: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNAUTHORIZED,
354: me->reason, (int) strlen(me->reason), "HTTPNextState");
355: http->next = HTTP_ERROR;
356: http->result = HT_NO_ACCESS;
357: break;
1.152 frystyk 358:
1.158 frystyk 359: case 402: /* Payment required */
360: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PAYMENT_REQUIRED,
361: me->reason, (int) strlen(me->reason), "HTTPNextState");
362: http->next = HTTP_ERROR;
363: http->result = -402;
364: break;
1.71 frystyk 365:
1.158 frystyk 366: case 403: /* Forbidden */
367: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_FORBIDDEN,
368: me->reason, (int) strlen(me->reason), "HTTPNextState");
369: http->next = HTTP_ERROR;
370: http->result = HT_FORBIDDEN;
371: break;
1.55 frystyk 372:
1.158 frystyk 373: case 404: /* Not Found */
374: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_FOUND,
375: me->reason, (int) strlen(me->reason), "HTTPNextState");
376: http->next = HTTP_ERROR;
377: http->result = -404;
378: break;
1.55 frystyk 379:
1.158 frystyk 380: case 405: /* Not Allowed */
381: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_ALLOWED,
382: me->reason, (int) strlen(me->reason), "HTTPNextState");
383: http->next = HTTP_ERROR;
384: http->result = -405;
385: break;
386:
387: case 406: /* None Acceptable */
388: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NONE_ACCEPTABLE,
389: me->reason, (int) strlen(me->reason), "HTTPNextState");
390: http->next = HTTP_ERROR;
391: http->result = HT_NOT_ACCEPTABLE;
392: break;
393:
394: case 407: /* Proxy Authentication Required */
395: HTRequest_addError(me->request, ERR_FATAL, NO,HTERR_PROXY_UNAUTHORIZED,
396: me->reason, (int) strlen(me->reason), "HTTPNextState");
397: http->next = HTTP_ERROR;
398: http->result = HT_NO_PROXY_ACCESS;
399: break;
400:
401: case 408: /* Request Timeout */
402: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TIMEOUT,
403: me->reason, (int) strlen(me->reason), "HTTPNextState");
404: http->next = HTTP_ERROR;
405: http->result = -408;
406: break;
407:
408: case 409: /* Conflict */
409: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_CONFLICT,
410: me->reason, (int) strlen(me->reason), "HTTPNextState");
411: http->next = HTTP_ERROR;
412: http->result = HT_CONFLICT;
413: break;
414:
415: case 410: /* Gone */
416: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GONE,
417: me->reason, (int) strlen(me->reason), "HTTPNextState");
418: http->next = HTTP_ERROR;
419: http->result = -410;
420: break;
421:
422: case 411: /* Length Required */
423: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_LENGTH_REQUIRED,
424: me->reason, (int) strlen(me->reason), "HTTPNextState");
425: http->next = HTTP_ERROR;
426: http->result = HT_LENGTH_REQUIRED;
427: break;
428:
429: case 412: /* Precondition failed */
430: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PRECON_FAILED,
431: me->reason, (int) strlen(me->reason), "HTTPNextState");
432: http->next = HTTP_ERROR;
433: http->result = -412;
434: break;
435:
436: case 413: /* Request entity too large */
437: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TOO_BIG,
438: me->reason, (int) strlen(me->reason), "HTTPNextState");
439: http->next = HTTP_ERROR;
440: http->result = -413;
441: break;
442:
443: case 414: /* Request-URI too long */
444: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_URI_TOO_BIG,
445: me->reason, (int) strlen(me->reason), "HTTPNextState");
446: http->next = HTTP_ERROR;
447: http->result = -414;
448: break;
449:
450: case 415: /* Unsupported */
451: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNSUPPORTED,
452: me->reason, (int) strlen(me->reason), "HTTPNextState");
453: http->next = HTTP_ERROR;
454: http->result = -415;
455: break;
456:
457: case 416: /* Request Range not satisfiable */
458: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_RANGE,
459: me->reason, (int) strlen(me->reason), "HTTPNextState");
460: http->next = HTTP_ERROR;
461: http->result = -416;
462: break;
463:
464: case 417: /* Expectation Failed */
465: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_EXPECTATION_FAILED,
466: me->reason, (int) strlen(me->reason), "HTTPNextState");
467: http->next = HTTP_ERROR;
468: http->result = -417;
469: break;
470:
471: case 418: /* Reauthentication required */
472: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_REAUTH,
473: me->reason, (int) strlen(me->reason), "HTTPNextState");
474: http->next = HTTP_ERROR;
475: http->result = -418;
476: break;
477:
478: case 419: /* Proxy Reauthentication required */
479: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PROXY_REAUTH,
480: me->reason, (int) strlen(me->reason), "HTTPNextState");
481: http->next = HTTP_ERROR;
482: http->result = -419;
483: break;
484:
485: default:
486: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REQUEST,
487: me->reason, (int) strlen(me->reason), "HTTPNextState");
488: http->next = HTTP_ERROR;
489: http->result = -400;
490: break;
491: }
1.134 frystyk 492: break;
493:
1.158 frystyk 494: case 5:
1.134 frystyk 495:
1.158 frystyk 496: switch (me->status) {
497: case 501:
498: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_IMPLEMENTED,
499: me->reason, (int) strlen(me->reason), "HTTPNextState");
500: http->next = HTTP_ERROR;
501: http->result = -501;
502: break;
503:
504: case 502:
505: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_GATE,
506: me->reason, (int) strlen(me->reason), "HTTPNextState");
507: http->next = HTTP_ERROR;
508: http->result = -502;
509: break;
510:
511: case 503:
512: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_DOWN,
513: me->reason, (int) strlen(me->reason), "HTTPNextState");
514: http->next = HTTP_ERROR;
515:
516: /*
517: ** If Retry-After header is found then return HT_RETRY else HT_ERROR.
518: ** The caller may want to reissue the request at a later point in time.
519: */
520: {
521: HTResponse * response = HTRequest_response(me->request);
522: if (HTResponse_retryTime(response))
523: http->result = HT_RETRY;
524: else
525: http->result = -500;
526: }
527: break;
528:
529: case 504:
530: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GATE_TIMEOUT,
531: me->reason, (int) strlen(me->reason), "HTTPNextState");
532: http->next = HTTP_ERROR;
533: http->result = -504;
534: break;
535:
536: case 505: /* Unsupported protocol version */
537: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_VERSION,
538: me->reason, (int) strlen(me->reason), "HTTPNextState");
539: http->next = HTTP_ERROR;
540: http->result = HT_BAD_VERSION;
541: break;
542:
543: case 506: /* Partial update Not Implemented */
544: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NO_PARTIAL_UPDATE,
545: me->reason, (int) strlen(me->reason), "HTTPNextState");
546: http->next = HTTP_ERROR;
547: http->result = HT_BAD_VERSION;
548: break;
549:
550: default: /* bad number */
551: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_INTERNAL,
552: me->reason, (int) strlen(me->reason), "HTTPNextState");
553: http->next = HTTP_ERROR;
554: http->result = -500;
555: break;
1.140 frystyk 556: }
1.78 frystyk 557: break;
558:
1.158 frystyk 559: default:
1.104 frystyk 560: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
1.158 frystyk 561: (void *) me->buffer, me->buflen, "HTTPNextState");
1.134 frystyk 562: http->next = HTTP_ERROR;
1.155 frystyk 563: http->result = -(me->status);
1.71 frystyk 564: break;
1.55 frystyk 565: }
566: }
567:
1.71 frystyk 568: /* ------------------------------------------------------------------------- */
569: /* HTTP Status Line Stream */
570: /* ------------------------------------------------------------------------- */
1.55 frystyk 571:
1.71 frystyk 572: /*
1.141 frystyk 573: ** Analyze the stream we have read. If it is a HTTP 1.0 or higher
1.71 frystyk 574: ** then create a MIME-stream, else create a Guess stream to find out
575: ** what the 0.9 server is sending. We need to copy the buffer as we don't
576: ** know if we can modify the contents or not.
1.78 frystyk 577: **
578: ** Stream handling is a function of the status code returned from the
579: ** server:
580: ** 200: Use `output_stream' in HTRequest structure
1.94 frystyk 581: ** else: Use `debug_stream' in HTRequest structure
1.80 frystyk 582: **
583: ** Return: YES if buffer should be written out. NO otherwise
1.56 frystyk 584: */
1.157 frystyk 585: PRIVATE int stream_pipe (HTStream * me, int length)
1.56 frystyk 586: {
1.136 frystyk 587: HTRequest * request = me->request;
588: HTNet * net = HTRequest_net(request);
1.123 frystyk 589: HTHost * host = HTNet_host(net);
1.141 frystyk 590:
1.153 frystyk 591: #if 0
592: {
593: char * uri = HTAnchor_address((HTAnchor *) HTRequest_anchor(request));
594: fprintf(stderr, "HTTP header: %s for '%s'\n", me->buffer, uri);
595: HT_FREE(uri);
596: }
597: #endif
598:
1.132 frystyk 599: /*
600: ** Just check for HTTP and not HTTP/ as NCSA server chokes on 1.1 replies
601: ** Thanks to Markku Savela <msa@msa.tte.vtt.fi>
1.141 frystyk 602:
1.132 frystyk 603: */
604: if (strncasecomp(me->buffer, "http", 4)) {
1.80 frystyk 605: int status;
1.136 frystyk 606: HTRequest_addError(request, ERR_INFO, NO, HTERR_HTTP09,
1.80 frystyk 607: (void *) me->buffer, me->buflen, "HTTPStatusStream");
1.136 frystyk 608: me->target = HTStreamStack(WWW_UNKNOWN,
609: HTRequest_outputFormat(request),
610: HTRequest_outputStream(request),
611: request, NO);
1.134 frystyk 612: me->http->next = HTTP_OK;
1.80 frystyk 613: if ((status = PUTBLOCK(me->buffer, me->buflen)) == HT_OK)
614: me->transparent = YES;
1.123 frystyk 615: HTHost_setVersion(host, HTTP_09);
1.157 frystyk 616: if (length > 0) HTHost_setConsumed(host, length);
1.80 frystyk 617: return status;
618: } else {
1.140 frystyk 619: HTResponse * response = HTRequest_response(request);
1.155 frystyk 620: char * ptr = me->buffer+5; /* Skip the HTTP part */
621: char * vptr = NULL;
622: int major = 0;
623: int minor = 0;
624: me->version = vptr = HTNextField(&ptr);
625: if (vptr) {
626: major = (int) strtol(me->version, &vptr, 10);
627: if (vptr++) minor = strtol(vptr, NULL, 10);
628: }
1.95 frystyk 629:
1.130 frystyk 630: /* Here we want to find out when to use persistent connection */
1.155 frystyk 631: if (major > 1) {
632: if (PROT_TRACE)HTTrace("HTTP Status. Major version number is %d\n", major);
633: me->target = HTErrorStream();
1.158 frystyk 634: me->status = 9999;
1.155 frystyk 635: HTTPNextState(me); /* Get next state */
1.158 frystyk 636: return HT_ERROR;
1.155 frystyk 637: } else if (minor <= 0) {
638: if (PROT_TRACE)HTTrace("HTTP Status. This is an HTTP/1.0 server\n");
1.128 frystyk 639: HTHost_setVersion(host, HTTP_10);
1.155 frystyk 640: } else { /* 1.x, x>0 family */
641: HTHost_setVersion(host, HTTP_11); /* Best we can do */
1.156 frystyk 642: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
643: if (PROT_TRACE)
644: HTTrace("HTTP........ Mode is HTTP/1.1 with NO PIPELINING\n");
1.147 frystyk 645: HTNet_setPersistent(net, YES, HT_TP_SINGLE);
1.156 frystyk 646: } else if (ConnectionMode & HTTP_11_MUX) {
647: if (PROT_TRACE)
648: HTTrace("HTTP........ Mode is HTTP/1.1 with MUXING\n");
649: HTNet_setPersistent(net, YES, HT_TP_INTERLEAVE);
1.147 frystyk 650: } else if (ConnectionMode & HTTP_FORCE_10) {
651: if (PROT_TRACE) HTTrace("HTTP........ Mode is FORCE HTTP/1.0\n");
652: HTHost_setVersion(host, HTTP_10);
653: HTNet_setPersistent(net, NO, HT_TP_SINGLE);
654: } else
655: HTNet_setPersistent(net, YES, HT_TP_PIPELINE);
1.128 frystyk 656: }
1.95 frystyk 657:
1.81 frystyk 658: me->status = atoi(HTNextField(&ptr));
659: me->reason = ptr;
660: if ((ptr = strchr(me->reason, '\r')) != NULL) /* Strip \r and \n */
661: *ptr = '0円';
662: else if ((ptr = strchr(me->reason, '\n')) != NULL)
663: *ptr = '0円';
664:
1.130 frystyk 665: /*
666: ** If it is a 1xx code then find out what to do and return until we
667: ** get the next code. In the case of Upgrade we may not get back here
668: ** at all. If we are uploading an entity then continue doing that
669: */
670: if (me->status/100 == 1) {
1.136 frystyk 671: if (HTTPInformation(me) == YES) {
672: me->buflen = 0;
673: me->state = EOL_BEGIN;
1.157 frystyk 674: if (me->info_target) (*me->info_target->isa->_free)(me->info_target);
675: me->info_target = HTStreamStack(WWW_MIME_CONT,
676: HTRequest_debugFormat(request),
677: HTRequest_debugStream(request),
678: request, NO);
679: if (length > 0) HTHost_setConsumed(host, length);
680: return HT_OK;
1.103 frystyk 681: }
1.56 frystyk 682: }
1.133 frystyk 683:
684: /*
685: ** As we are getting fresh metainformation in the HTTP response,
686: ** we clear the old metainfomation in order not to mix it with the new
687: ** one. This is particularly important for the content-length and the
1.139 frystyk 688: ** like. The TRACE and OPTIONS method just adds to the current
689: ** metainformation so in that case we don't clear the anchor.
1.133 frystyk 690: */
1.136 frystyk 691: if (me->status==200 || me->status==203 || me->status==300) {
1.140 frystyk 692: /*
693: ** 200, 203 and 300 are all fully cacheable responses. No byte
694: ** ranges or anything else make life hard in this case.
695: */
1.148 frystyk 696: HTAnchor_clearHeader(HTRequest_anchor(request));
1.140 frystyk 697: HTResponse_setCachable(response, YES);
1.136 frystyk 698: me->target = HTStreamStack(WWW_MIME,
699: HTRequest_outputFormat(request),
700: HTRequest_outputStream(request),
701: request, NO);
1.140 frystyk 702: } else if (me->status==206) {
703: /*
704: ** We got a partial response and now we must check whether
705: ** we issued a cache If-Range request or it was a new
706: ** partial response which we don't have in cache. In the latter
707: ** case, we don't cache the object and in the former we append
708: ** the result to the already existing cache entry.
709: */
710: HTReload reload = HTRequest_reloadMode(request);
711: if (reload == HT_CACHE_RANGE_VALIDATE) {
712: HTResponse_setCachable(response, YES);
713: me->target = HTStreamStack(WWW_MIME_PART,
714: HTRequest_outputFormat(request),
715: HTRequest_outputStream(request),
716: request, NO);
717: } else {
1.149 frystyk 718: HTAnchor_clearHeader(HTRequest_anchor(request));
1.140 frystyk 719: me->target = HTStreamStack(WWW_MIME,
720: HTRequest_outputFormat(request),
721: HTRequest_outputStream(request),
722: request, NO);
723: }
1.139 frystyk 724: } else if (me->status==204 || me->status==304) {
1.140 frystyk 725: HTResponse_setCachable(response, YES);
1.136 frystyk 726: me->target = HTStreamStack(WWW_MIME_HEAD,
727: HTRequest_debugFormat(request),
728: HTRequest_debugStream(request),
729: request, NO);
730: } else if (HTRequest_debugStream(request)) {
731: me->target = HTStreamStack(WWW_MIME,
732: HTRequest_debugFormat(request),
733: HTRequest_debugStream(request),
734: request, NO);
735: } else {
1.140 frystyk 736: /*
737: ** We still need to parse the MIME part in order to find any
738: ** valuable meta information which is needed from the response.
739: */
1.136 frystyk 740: me->target = HTStreamStack(WWW_MIME,
741: HTRequest_debugFormat(request),
742: HTRequest_debugStream(request),
743: request, NO);
1.133 frystyk 744: }
1.56 frystyk 745: }
1.113 frystyk 746: if (!me->target) me->target = HTErrorStream();
1.81 frystyk 747: HTTPNextState(me); /* Get next state */
1.80 frystyk 748: me->transparent = YES;
1.157 frystyk 749: if (length > 0) HTHost_setConsumed(HTNet_host(HTRequest_net(me->request)), length);
1.80 frystyk 750: return HT_OK;
1.71 frystyk 751: }
1.56 frystyk 752:
1.80 frystyk 753: /*
754: ** Searches for HTTP header line until buffer fills up or a CRLF or LF
755: ** is found
756: */
1.119 frystyk 757: PRIVATE int HTTPStatus_put_block (HTStream * me, const char * b, int l)
1.71 frystyk 758: {
1.150 frystyk 759: int status = HT_OK;
1.153 frystyk 760: int length = l;
1.146 frystyk 761: me->startLen = me->buflen;
1.80 frystyk 762: while (!me->transparent && l-- > 0) {
1.157 frystyk 763: if (me->info_target) {
764:
765: /* Put data down the 1xx return code parser until we are done. */
766: status = (*me->info_target->isa->put_block)(me->info_target, b, l+1);
767: if (status != HT_CONTINUE) return status;
768:
769: /* Now free the info stream */
770: (*me->info_target->isa->_free)(me->info_target);
771: me->info_target = NULL;
772:
773: /* Update where we are in the stream */
774: l = HTHost_remainingRead(HTNet_host(HTRequest_net(me->request)));
775: b += (length-l);
1.159 frystyk 776: length = l;
1.157 frystyk 777:
1.80 frystyk 778: } else {
779: *(me->buffer+me->buflen++) = *b;
780: if (me->state == EOL_FCR) {
781: if (*b == LF) { /* Line found */
1.157 frystyk 782: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 783: } else {
784: me->state = EOL_BEGIN;
785: }
786: } else if (*b == CR) {
787: me->state = EOL_FCR;
788: } else if (*b == LF) {
1.157 frystyk 789: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.71 frystyk 790: } else {
1.80 frystyk 791: if (me->buflen >= MAX_STATUS_LEN) {
1.157 frystyk 792: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 793: }
1.71 frystyk 794: }
1.80 frystyk 795: b++;
1.71 frystyk 796: }
1.56 frystyk 797: }
1.153 frystyk 798:
1.159 frystyk 799: if (!me->transparent && length != l)
800: HTHost_setConsumed(HTNet_host(HTRequest_net(me->request)), length-l);
801:
1.99 frystyk 802: if (l > 0) return PUTBLOCK(b, l);
1.150 frystyk 803: return status;
1.56 frystyk 804: }
805:
1.119 frystyk 806: PRIVATE int HTTPStatus_put_string (HTStream * me, const char * s)
1.71 frystyk 807: {
1.80 frystyk 808: return HTTPStatus_put_block(me, s, (int) strlen(s));
1.71 frystyk 809: }
1.56 frystyk 810:
1.100 frystyk 811: PRIVATE int HTTPStatus_put_character (HTStream * me, char c)
1.71 frystyk 812: {
1.80 frystyk 813: return HTTPStatus_put_block(me, &c, 1);
814: }
815:
1.100 frystyk 816: PRIVATE int HTTPStatus_flush (HTStream * me)
1.80 frystyk 817: {
818: return (*me->target->isa->flush)(me->target);
1.71 frystyk 819: }
820:
1.100 frystyk 821: PRIVATE int HTTPStatus_free (HTStream * me)
1.71 frystyk 822: {
1.87 frystyk 823: int status = HT_OK;
824: if (me->target) {
825: if ((status = (*me->target->isa->_free)(me->target))==HT_WOULD_BLOCK)
826: return HT_WOULD_BLOCK;
827: }
1.115 frystyk 828: HT_FREE(me);
1.100 frystyk 829: return status;
1.71 frystyk 830: }
831:
1.104 frystyk 832: PRIVATE int HTTPStatus_abort (HTStream * me, HTList * e)
1.71 frystyk 833: {
834: if (me->target)
1.74 frystyk 835: ABORT_TARGET;
1.115 frystyk 836: HT_FREE(me);
1.74 frystyk 837: if (PROT_TRACE)
1.116 eric 838: HTTrace("HTTPStatus.. ABORTING...\n");
1.80 frystyk 839: return HT_ERROR;
1.71 frystyk 840: }
841:
842: /* HTTPStatus Stream
843: ** -----------------
844: */
1.119 frystyk 845: PRIVATE const HTStreamClass HTTPStatusClass =
1.71 frystyk 846: {
847: "HTTPStatus",
1.80 frystyk 848: HTTPStatus_flush,
1.71 frystyk 849: HTTPStatus_free,
850: HTTPStatus_abort,
851: HTTPStatus_put_character,
852: HTTPStatus_put_string,
853: HTTPStatus_put_block
854: };
855:
1.113 frystyk 856: PUBLIC HTStream * HTTPStatus_new (HTRequest * request,
857: void * param,
858: HTFormat input_format,
859: HTFormat output_format,
860: HTStream * output_stream)
1.71 frystyk 861: {
1.115 frystyk 862: HTStream * me;
863: if ((me = (HTStream *) HT_CALLOC(1, sizeof(HTStream))) == NULL)
864: HT_OUTOFMEM("HTTPStatus_new");
1.71 frystyk 865: me->isa = &HTTPStatusClass;
1.113 frystyk 866: if (request) {
1.126 frystyk 867: HTNet * net = HTRequest_net(request);
1.125 frystyk 868: /* Get existing copy */
869: http_info * http = (http_info *) HTNet_context(net);
1.113 frystyk 870: me->request = request;
871: me->http = http;
872: http->next = HTTP_ERROR;
873: me->state = EOL_BEGIN;
874: return me;
875: } else
876: return HTErrorStream();
1.71 frystyk 877: }
878:
879: /* ------------------------------------------------------------------------- */
880:
881: /* Load Document from HTTP Server HTLoadHTTP
1.55 frystyk 882: ** ==============================
883: **
884: ** Given a hypertext address, this routine loads a document.
885: **
886: ** On entry,
887: ** request This is the request structure
1.94 frystyk 888: ** returns HT_ERROR Error has occured in call back
889: ** HT_OK Call back was OK
1.55 frystyk 890: */
1.141 frystyk 891: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type);
892:
893: PUBLIC int HTLoadHTTP (SOCKET soc, HTRequest * request)
1.55 frystyk 894: {
895: http_info *http; /* Specific protocol information */
1.112 frystyk 896: HTParentAnchor *anchor = HTRequest_anchor(request);
1.141 frystyk 897: HTNet * net = HTRequest_net(request);
1.112 frystyk 898:
1.94 frystyk 899: /*
900: ** Initiate a new http structure and bind to request structure
901: ** This is actually state HTTP_BEGIN, but it can't be in the state
902: ** machine as we need the structure first.
903: */
1.141 frystyk 904: if (PROT_TRACE) HTTrace("HTTP........ Looking for `%s\'\n",
905: HTAnchor_physical(anchor));
906: if ((http = (http_info *) HT_CALLOC(1, sizeof(http_info))) == NULL)
907: HT_OUTOFMEM("HTLoadHTTP");
908: http->net = net;
1.157 frystyk 909: http->request = request;
1.141 frystyk 910: HTNet_setContext(net, http);
911: HTNet_setEventCallback(net, HTTPEvent);
912: HTNet_setEventParam(net, http); /* callbacks get http* */
913:
1.157 frystyk 914: return HTTPEvent(soc, http, HTEvent_BEGIN); /* get it started - ops is ignored */
915: }
916:
917: PRIVATE int FlushPutEvent (HTTimer * timer, void * param, HTEventType type)
918: {
919: http_info * http = (http_info *) param;
920: HTStream * input = HTRequest_inputStream(http->request);
921: HTPostCallback * pcbf = HTRequest_postCallback(http->request);
922:
1.160 frystyk 923: if (timer != http->timer)
924: HTDebugBreak(__FILE__, __LINE__, "HTTP timer %p not in sync\n", timer);
1.157 frystyk 925: if (PROT_TRACE) HTTrace("Uploading... Flushing %p with timer %p\n", http, timer);
926:
927: /*
928: ** We ignore the return code here which we shouldn't!!!
929: */
930: if (http && input && pcbf) (*pcbf)(http->request, input);
931:
932: /*
933: ** Delete the timer
934: */
935: http->timer = NULL;
936: return HT_OK;
1.141 frystyk 937: }
938:
939: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type)
940: {
941: http_info * http = (http_info *)pVoid;
942: int status = HT_ERROR;
943: HTNet * net = http->net;
944: HTRequest * request = HTNet_request(net);
1.144 frystyk 945: HTParentAnchor * anchor = HTRequest_anchor(request);
946: HTHost * host = HTNet_host(net);
1.141 frystyk 947:
948: /*
949: ** Check whether we have been interrupted
950: */
951: if (type == HTEvent_BEGIN) {
1.134 frystyk 952: http->next = HTTP_OK;
953: http->result = HT_ERROR;
1.141 frystyk 954: } else if (type == HTEvent_CLOSE) {
1.112 frystyk 955: HTRequest_addError(request, ERR_FATAL, NO, HTERR_INTERRUPTED,
956: NULL, 0, "HTLoadHTTP");
957: HTTPCleanup(request, HT_INTERRUPTED);
1.94 frystyk 958: return HT_OK;
1.141 frystyk 959: } else if (type == HTEvent_END) {
960: HTTPCleanup(request, http->result);
961: return HT_OK;
962: } else if (type == HTEvent_RESET) {
963: HTTPCleanup(request, HT_RECOVER_PIPE);
1.145 frystyk 964: http->state = HTTP_BEGIN;
1.141 frystyk 965: return HT_OK;
966: }
967:
1.71 frystyk 968: /* Now jump into the machine. We know the state from the previous run */
969: while (1) {
970: switch (http->state) {
1.134 frystyk 971: case HTTP_BEGIN:
1.144 frystyk 972: status = HTHost_connect(host, net, HTAnchor_physical(anchor), HTTP_PORT);
973: host = HTNet_host(net);
1.153 frystyk 974: if (status == HT_OK) {
1.140 frystyk 975:
1.123 frystyk 976: /*
1.140 frystyk 977: ** Check the protocol class to see if we have connected to a
978: ** the right class of server, in this case HTTP. If we don't
979: ** know the server then assume a HTTP/1.0
1.123 frystyk 980: */
981: {
982: char * s_class = HTHost_class(host);
1.140 frystyk 983: if (!s_class) {
984: if (HTRequest_proxy(request) == NULL)
985: HTRequest_addConnection(request, "Keep-Alive", "");
986: HTHost_setClass(host, "http");
987: } else if (strcasecomp(s_class, "http")) {
1.123 frystyk 988: HTRequest_addError(request, ERR_FATAL, NO, HTERR_CLASS,
989: NULL, 0, "HTLoadHTTP");
990: http->state = HTTP_ERROR;
991: break;
992: }
1.95 frystyk 993: }
1.147 frystyk 994:
1.156 frystyk 995: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
1.147 frystyk 996: if (PROT_TRACE) HTTrace("HTTP........ Mode is HTTP/1.1 WITH NO PIPELINING\n");
997: HTRequest_setFlush(request, YES);
998: } else if (ConnectionMode & HTTP_FORCE_10) {
999: if (PROT_TRACE) HTTrace("HTTP........ Mode is FORCE HTTP/1.0\n");
1000: HTHost_setVersion(host, HTTP_10);
1001: }
1002:
1.151 frystyk 1003: if (HTNet_preemptive(net)) {
1004: if (PROT_TRACE) HTTrace("HTTP........ Force flush on preemptive load\n");
1005: HTRequest_setFlush(request, YES);
1006: }
1007:
1.147 frystyk 1008: /* Jump to next state */
1.144 frystyk 1009: http->state = HTTP_NEED_STREAM;
1.159 frystyk 1010: } else if (status == HT_WOULD_BLOCK || status == HT_PENDING) {
1.144 frystyk 1011: return HT_OK;
1.159 frystyk 1012: } else
1.144 frystyk 1013: http->state = HTTP_ERROR; /* Error or interrupt */
1014: break;
1015:
1016: case HTTP_NEED_STREAM:
1.138 frystyk 1017:
1.144 frystyk 1018: /*
1019: ** Create the stream pipe FROM the channel to the application.
1020: ** The target for the input stream pipe is set up using the
1021: ** stream stack.
1022: */
1.153 frystyk 1023: {
1.144 frystyk 1024: HTStream *me=HTStreamStack(WWW_HTTP,
1025: HTRequest_outputFormat(request),
1026: HTRequest_outputStream(request),
1027: request, YES);
1028: HTNet_setReadStream(net, me);
1029: HTRequest_setOutputConnected(request, YES);
1030: }
1.127 frystyk 1031:
1.144 frystyk 1032: /*
1033: ** Create the stream pipe TO the channel from the application
1034: ** and hook it up to the request object
1035: */
1036: {
1037: HTChannel * channel = HTHost_channel(host);
1038: HTOutputStream * output = HTChannel_getChannelOStream(channel);
1039: int version = HTHost_version(host);
1040: HTStream * app = NULL;
1041:
1.139 frystyk 1042: #ifdef HTTP_DUMP
1.144 frystyk 1043: if (PROT_TRACE) {
1.147 frystyk 1044: FILE * htfp = NULL;
1045: if ((htfp = fopen(HTTP_OUTPUT, "ab")) != NULL) {
1.144 frystyk 1046: output = (HTOutputStream *)
1.147 frystyk 1047: HTTee((HTStream *) output, HTFWriter_new(request, htfp, NO), NULL);
1048: HTTrace("HTTP........ Dumping request to `%s\'\n", HTTP_OUTPUT);
1.144 frystyk 1049: }
1050: }
1.139 frystyk 1051: #endif /* HTTP_DUMP */
1.144 frystyk 1052: app = HTMethod_hasEntity(HTRequest_method(request)) ?
1053: HTMIMERequest_new(request,
1054: HTTPRequest_new(request, (HTStream *) output, NO,
1055: version),
1056: YES) :
1057: HTTPRequest_new(request, (HTStream *) output, YES, version);
1058: HTRequest_setInputStream(request, app);
1059: }
1.88 frystyk 1060:
1.144 frystyk 1061: /*
1062: ** Set up concurrent read/write if this request isn't the
1063: ** source for a PUT or POST. As source we don't start reading
1064: ** before all destinations are ready. If destination then
1065: ** register the input stream and get ready for read
1066: */
1067: if (HTRequest_isDestination(request)) {
1068: HTHost_register(host, net, HTEvent_READ);
1069: HTRequest_linkDestination(request);
1070: }
1071: http->state = HTTP_CONNECTED;
1072: type = HTEvent_WRITE; /* fresh, so try a write */
1.71 frystyk 1073: break;
1074:
1.87 frystyk 1075: /* As we can do simultanous read and write this is now one state */
1.141 frystyk 1076: case HTTP_CONNECTED:
1077: if (type == HTEvent_WRITE) {
1.157 frystyk 1078: HTStream * input = HTRequest_inputStream(request);
1079: HTPostCallback * pcbf = HTRequest_postCallback(request);
1080: status = HTRequest_flush(request) ?
1081: HTHost_forceFlush(host) : (*input->isa->flush)(input);
1082:
1083: /*
1084: ** Check to see if we are uploading something or just a normal
1085: ** GET kind of thing.
1086: */
1087: if (pcbf) {
1088: if (http->lock == NO) {
1089: int retrys = HTRequest_retrys(request);
1090: ms_t delay = retrys > 3 ? 3000 : 2000;
1091: if (!http->timer) {
1092: ms_t exp = HTGetTimeInMillis() + delay;
1093: http->timer = HTTimer_new(NULL, FlushPutEvent, http, exp, NO);
1094: if (PROT_TRACE)
1095: HTTrace("Uploading... Holding %p request for %lu ms\n",
1096: request, delay);
1097: HTHost_register(host, net, HTEvent_READ);
1098: }
1099: http->lock = YES;
1100: }
1101: type = HTEvent_READ;
1102: } else {
1103:
1104: /*
1105: ** Check to see if we can start a new request
1106: ** pending in the host object.
1107: */
1108: HTHost_launchPending(host);
1109: type = HTEvent_READ;
1110: }
1111:
1112: /* Now check the status code */
1113: if (status == HT_WOULD_BLOCK)
1114: return HT_OK;
1115: else if (status == HT_PAUSE || status == HT_LOADED) {
1116: type = HTEvent_READ;
1117: } else if (status==HT_CLOSED)
1118: http->state = HTTP_RECOVER_PIPE;
1119: else if (status == HT_ERROR) {
1120: http->result = HT_INTERRUPTED;
1121: http->state = HTTP_ERROR;
1122: break;
1123: }
1124: } else if (type == HTEvent_FLUSH) {
1125: HTStream * input = HTRequest_inputStream(request);
1126: if (input == NULL)
1127: return HT_ERROR;
1128: return (*input->isa->flush)(input);
1129: } else if (type == HTEvent_READ) {
1130: status = HTHost_read(host, net);
1131: if (status == HT_WOULD_BLOCK)
1132: return HT_OK;
1133: else if (status == HT_CONTINUE) {
1134: if (PROT_TRACE) HTTrace("HTTP........ Continuing\n");
1135: http->lock = NO;
1136: continue;
1137: } else if (status==HT_LOADED)
1138: http->state = http->next; /* Jump to next state (OK or ERROR) */
1139: else if (status==HT_CLOSED)
1140: http->state = HTTP_RECOVER_PIPE;
1141: else
1142: http->state = HTTP_ERROR;
1143: } else {
1144: http->state = HTTP_ERROR; /* don't know how to handle OOB */
1145: }
1146: break;
1.141 frystyk 1147:
1.134 frystyk 1148: case HTTP_OK:
1.88 frystyk 1149: if (HTRequest_isPostWeb(request)) {
1.91 frystyk 1150: if (HTRequest_isDestination(request)) {
1.126 frystyk 1151: HTRequest * source = HTRequest_source(request);
1.91 frystyk 1152: HTLink *link =
1.127 frystyk 1153: HTLink_find((HTAnchor *)HTRequest_anchor(source),
1.112 frystyk 1154: (HTAnchor *) anchor);
1.109 frystyk 1155: HTLink_setResult(link, HT_LINK_OK);
1.91 frystyk 1156: }
1.112 frystyk 1157: }
1.134 frystyk 1158: HTTPCleanup(request, http->result);
1.94 frystyk 1159: return HT_OK;
1.71 frystyk 1160: break;
1.141 frystyk 1161:
1162: case HTTP_RECOVER_PIPE:
1163: {
1164: /*
1165: ** If this is a persistent connection and we get a close
1166: ** then it is an error and we should recover from it by
1167: ** restarting the pipe line of requests if any
1168: */
1.151 frystyk 1169: if (HTHost_isPersistent(host) && !HTHost_closeNotification(host)) {
1.143 frystyk 1170: if (host == NULL) return HT_ERROR;
1.144 frystyk 1171: HTRequest_setFlush(request, YES);
1172: HTHost_recoverPipe(host);
1173: http->state = HTTP_BEGIN;
1174: HTHost_launchPending(host);
1175: return HT_OK;
1.141 frystyk 1176: } else
1177: http->state = HTTP_OK;
1178: }
1.143 frystyk 1179: break;
1.141 frystyk 1180:
1.71 frystyk 1181: case HTTP_ERROR:
1.143 frystyk 1182: if (HTRequest_isPostWeb(request)) {
1183: if (HTRequest_isDestination(request)) {
1184: HTRequest * source = HTRequest_source(request);
1185: HTLink *link =
1186: HTLink_find((HTAnchor *)HTRequest_anchor(source),
1187: (HTAnchor *) anchor);
1188: HTLink_setResult(link, HT_LINK_ERROR);
1189: }
1190: HTRequest_killPostWeb(request);
1191: }
1192: HTTPCleanup(request, http->result);
1193: return HT_OK;
1194: break;
1195:
1.141 frystyk 1196: default:
1.160 frystyk 1197: HTDebugBreak(__FILE__, __LINE__, "Bad http state %d\n", http->state);
1.71 frystyk 1198: }
1199: } /* End of while(1) */
1200: }
1.88 frystyk 1201:
1.147 frystyk 1202: PUBLIC void HTTP_setConnectionMode (HTTPConnectionMode mode)
1203: {
1204: ConnectionMode = mode;
1205: }
1206:
1207: PUBLIC HTTPConnectionMode HTTP_connectionMode (void)
1208: {
1209: return ConnectionMode;
1210: }
1.21 luotonen 1211:
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