Annotation of libwww/Library/src/HTTP.c, revision 1.165
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.
1.165 ! frystyk 6: ** @(#) $Id: HTTP.c,v 1.164 1998年07月21日 13:45:57 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;
1.165 ! frystyk 69: BOOL usedTimer;
1.55 frystyk 70: } http_info;
71:
1.88 frystyk 72: #define MAX_STATUS_LEN 100 /* Max nb of chars to check StatusLine */
1.55 frystyk 73:
1.71 frystyk 74: struct _HTStream {
1.119 frystyk 75: const HTStreamClass * isa;
1.71 frystyk 76: HTStream * target;
1.157 frystyk 77: HTStream * info_target; /* For 100 codes */
1.71 frystyk 78: HTRequest * request;
79: http_info * http;
1.121 frystyk 80: HTEOLState state;
1.71 frystyk 81: BOOL transparent;
1.150 frystyk 82: BOOL cont;
1.81 frystyk 83: char * version; /* Should we save this? */
1.71 frystyk 84: int status;
1.81 frystyk 85: char * reason;
1.71 frystyk 86: char buffer[MAX_STATUS_LEN+1];
1.80 frystyk 87: int buflen;
1.146 frystyk 88: int startLen;/* buflen when put_block was called */
1.71 frystyk 89: };
1.21 luotonen 90:
1.123 frystyk 91: struct _HTInputStream {
92: const HTInputStreamClass * isa;
93: };
94:
1.147 frystyk 95: #ifdef HT_NO_PIPELINING
1.156 frystyk 96: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_NO_PIPELINING;
1.147 frystyk 97: #else
1.156 frystyk 98: #ifdef HT_MUX
99: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_MUX;
100: #else
101: #ifdef HT_FORCE_10
102: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_FORCE_10;
103: #else
104: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_PIPELINING;
105: #endif
106: #endif
1.147 frystyk 107: #endif
108:
1.71 frystyk 109: /* ------------------------------------------------------------------------- */
110: /* Help Functions */
111: /* ------------------------------------------------------------------------- */
1.21 luotonen 112:
1.94 frystyk 113: /* HTTPCleanup
114: ** -----------
1.55 frystyk 115: ** This function closes the connection and frees memory.
1.94 frystyk 116: ** Returns YES on OK, else NO
1.1 timbl 117: */
1.94 frystyk 118: PRIVATE int HTTPCleanup (HTRequest *req, int status)
1.1 timbl 119: {
1.126 frystyk 120: HTNet * net = HTRequest_net(req);
121: http_info * http = (http_info *) HTNet_context(net);
122: HTStream * input = HTRequest_inputStream(req);
1.80 frystyk 123:
1.144 frystyk 124: if (PROT_TRACE)
125: HTTrace("HTTP Clean.. Called with status %d, net %p\n", status, net);
126:
1.164 frystyk 127: if (status == HT_INTERRUPTED) {
128: HTAlertCallback * cbf = HTAlert_find(HT_PROG_INTERRUPT);
129: if (cbf) (*cbf)(req, HT_PROG_INTERRUPT,
130: HT_MSG_NULL, NULL, NULL, NULL);
131: }
132:
1.94 frystyk 133: /* Free stream with data TO network */
1.112 frystyk 134: if (HTRequest_isDestination(req))
135: HTRequest_removeDestination(req);
1.126 frystyk 136: else if (input) {
1.145 frystyk 137: if (status == HT_INTERRUPTED || status == HT_RECOVER_PIPE)
1.126 frystyk 138: (*input->isa->abort)(input, NULL);
1.94 frystyk 139: else
1.126 frystyk 140: (*input->isa->_free)(input);
141: HTRequest_setInputStream(req, NULL);
1.94 frystyk 142: }
1.88 frystyk 143:
1.144 frystyk 144: /*
1.157 frystyk 145: ** Remove if we have registered an upload function as a callback
146: */
147: if (http->timer) {
148: HTTimer_delete(http->timer);
149: http->timer = NULL;
150: }
151:
152: /*
1.144 frystyk 153: ** Remove the request object and our own context structure for http.
154: */
155: if (status != HT_RECOVER_PIPE) {
1.153 frystyk 156: HTNet_delete(net, status);
1.141 frystyk 157: HT_FREE(http);
158: }
1.94 frystyk 159: return YES;
1.55 frystyk 160: }
161:
1.71 frystyk 162: /*
1.130 frystyk 163: ** Informational 1xx codes are handled separately
1.136 frystyk 164: ** Returns YES if we should continue, NO if we should stop
1.55 frystyk 165: */
1.130 frystyk 166: PRIVATE BOOL HTTPInformation (HTStream * me)
1.55 frystyk 167: {
1.136 frystyk 168: http_info * http = me->http;
1.71 frystyk 169: switch (me->status) {
170:
1.136 frystyk 171: case 100:
1.161 frystyk 172: #if 0
1.136 frystyk 173: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CONTINUE,
174: me->reason, (int) strlen(me->reason),
175: "HTTPInformation");
1.161 frystyk 176: #endif
1.136 frystyk 177: return YES;
178: break;
179:
1.130 frystyk 180: case 101:
1.136 frystyk 181: /*
182: ** We consider 101 Switching as a final state and exit this request
183: */
1.130 frystyk 184: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_SWITCHING,
1.127 frystyk 185: me->reason, (int) strlen(me->reason),
1.130 frystyk 186: "HTTPInformation");
1.136 frystyk 187: http->next = HTTP_OK;
188: http->result = HT_UPGRADE;
1.127 frystyk 189: break;
190:
1.130 frystyk 191: default:
1.136 frystyk 192: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
193: (void *) me->buffer, me->buflen, "HTTPNextState");
194: http->next = HTTP_ERROR;
195: http->result = HT_ERROR;
1.127 frystyk 196: break;
1.130 frystyk 197: }
1.136 frystyk 198: return NO;
1.130 frystyk 199: }
200:
1.158 frystyk 201:
202:
1.130 frystyk 203: /*
204: ** This is a big switch handling all HTTP return codes. It puts in any
205: ** appropiate error message and decides whether we should expect data
206: ** or not.
207: */
208: PRIVATE void HTTPNextState (HTStream * me)
209: {
1.134 frystyk 210: http_info * http = me->http;
1.158 frystyk 211: int error_class = me->status / 100;
212: switch (error_class) {
1.127 frystyk 213:
1.158 frystyk 214: case 0: /* 0.9 response */
215: case 2:
1.112 frystyk 216:
1.158 frystyk 217: switch (me->status) {
1.112 frystyk 218:
1.158 frystyk 219: case 201: /* Created */
220: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CREATED,
221: me->reason, (int) strlen(me->reason),
222: "HTTPNextState");
223: http->next = HTTP_OK;
224: http->result = HT_CREATED;
225: break;
226:
227: case 202: /* Accepted */
228: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_ACCEPTED,
229: me->reason, (int) strlen(me->reason),
230: "HTTPNextState");
231: http->next = HTTP_OK;
232: http->result = HT_ACCEPTED;
233: break;
234:
235: case 203: /* Non-authoritative information */
236: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NON_AUTHORITATIVE,
237: me->reason, (int) strlen(me->reason),
238: "HTTPNextState");
239: http->next = HTTP_OK;
240: http->result = HT_LOADED;
241: break;
242:
243: case 204: /* No Response */
244: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NO_CONTENT,
245: me->reason, (int) strlen(me->reason),
246: "HTTPNextState");
247: http->next = HTTP_OK;
248: http->result = HT_NO_DATA;
249: break;
250:
251: case 205: /* Reset Content */
252: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_RESET,
253: me->reason, (int) strlen(me->reason),
254: "HTTPNextState");
255: http->next = HTTP_OK;
256: http->result = HT_RESET_CONTENT;
257: break;
258:
259: case 206: /* Partial Content */
260: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL,
261: me->reason, (int) strlen(me->reason),
262: "HTTPNextState");
263: http->next = HTTP_OK;
264: http->result = HT_PARTIAL_CONTENT;
265: break;
266:
267: case 207: /* Partial Update OK */
268: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL_OK,
269: me->reason, (int) strlen(me->reason),
270: "HTTPNextState");
271: http->next = HTTP_OK;
272: http->result = HT_PARTIAL_CONTENT;
273: break;
274:
275: default:
276: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_OK,
277: me->reason, (int) strlen(me->reason),
278: "HTTPNextState");
279: http->next = HTTP_OK;
280: http->result = HT_LOADED;
281: break;
282: }
1.134 frystyk 283: break;
284:
1.158 frystyk 285: case 3:
1.134 frystyk 286:
1.158 frystyk 287: switch (me->status) {
1.78 frystyk 288:
1.158 frystyk 289: case 301: /* Moved */
290: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MOVED,
291: me->reason, (int) strlen(me->reason),
292: "HTTPNextState");
293: http->next = HTTP_ERROR;
294: http->result = HT_PERM_REDIRECT;
295: break;
296:
297: case 302: /* Found */
298: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_FOUND,
299: me->reason, (int) strlen(me->reason),
300: "HTTPNextState");
301: http->next = HTTP_ERROR;
302: http->result = HT_FOUND;
303: break;
1.55 frystyk 304:
1.158 frystyk 305: case 303: /* Method */
306: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_METHOD,
307: me->reason, (int) strlen(me->reason),
308: "HTTPNextState");
309: http->next = HTTP_ERROR;
310: http->result = HT_SEE_OTHER;
311: break;
312:
313: case 304: /* Not Modified */
314: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NOT_MODIFIED,
315: me->reason, (int) strlen(me->reason),
316: "HTTPNextState");
317: http->next = HTTP_OK;
318: http->result = HT_NOT_MODIFIED;
319: break;
1.134 frystyk 320:
1.158 frystyk 321: case 305: /* Use proxy */
322: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_USE_PROXY,
323: me->reason, (int) strlen(me->reason),
324: "HTTPNextState");
325: http->next = HTTP_ERROR;
326: http->result = HT_USE_PROXY;
327: break;
1.55 frystyk 328:
1.152 frystyk 329: #if 0
1.158 frystyk 330: case 306: /* Use proxy */
331: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PROXY_REDIRECT,
332: me->reason, (int) strlen(me->reason),
333: "HTTPNextState");
334: http->next = HTTP_ERROR;
335: http->result = HT_USE_PROXY;
336: break;
1.152 frystyk 337: #endif
338:
1.158 frystyk 339: case 307: /* Use proxy */
340: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_TEMP_REDIRECT,
341: me->reason, (int) strlen(me->reason),
342: "HTTPNextState");
343: http->next = HTTP_ERROR;
344: http->result = HT_TEMP_REDIRECT;
345: break;
346:
347: default:
348: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MULTIPLE,
349: me->reason, (int) strlen(me->reason),
350: "HTTPNextState");
351: http->next = HTTP_OK;
352: http->result = HT_LOADED;
353: break;
354: }
355: break;
356:
357: case 4:
358:
359: switch (me->status) {
360: case 401:
361: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNAUTHORIZED,
362: me->reason, (int) strlen(me->reason), "HTTPNextState");
363: http->next = HTTP_ERROR;
364: http->result = HT_NO_ACCESS;
365: break;
1.152 frystyk 366:
1.158 frystyk 367: case 402: /* Payment required */
368: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PAYMENT_REQUIRED,
369: me->reason, (int) strlen(me->reason), "HTTPNextState");
370: http->next = HTTP_ERROR;
371: http->result = -402;
372: break;
1.71 frystyk 373:
1.158 frystyk 374: case 403: /* Forbidden */
375: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_FORBIDDEN,
376: me->reason, (int) strlen(me->reason), "HTTPNextState");
377: http->next = HTTP_ERROR;
378: http->result = HT_FORBIDDEN;
379: break;
1.55 frystyk 380:
1.158 frystyk 381: case 404: /* Not Found */
382: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_FOUND,
383: me->reason, (int) strlen(me->reason), "HTTPNextState");
384: http->next = HTTP_ERROR;
385: http->result = -404;
386: break;
1.55 frystyk 387:
1.158 frystyk 388: case 405: /* Not Allowed */
389: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_ALLOWED,
390: me->reason, (int) strlen(me->reason), "HTTPNextState");
391: http->next = HTTP_ERROR;
392: http->result = -405;
393: break;
394:
395: case 406: /* None Acceptable */
396: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NONE_ACCEPTABLE,
397: me->reason, (int) strlen(me->reason), "HTTPNextState");
398: http->next = HTTP_ERROR;
399: http->result = HT_NOT_ACCEPTABLE;
400: break;
401:
402: case 407: /* Proxy Authentication Required */
403: HTRequest_addError(me->request, ERR_FATAL, NO,HTERR_PROXY_UNAUTHORIZED,
404: me->reason, (int) strlen(me->reason), "HTTPNextState");
405: http->next = HTTP_ERROR;
406: http->result = HT_NO_PROXY_ACCESS;
407: break;
408:
409: case 408: /* Request Timeout */
410: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TIMEOUT,
411: me->reason, (int) strlen(me->reason), "HTTPNextState");
412: http->next = HTTP_ERROR;
413: http->result = -408;
414: break;
415:
416: case 409: /* Conflict */
417: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_CONFLICT,
418: me->reason, (int) strlen(me->reason), "HTTPNextState");
419: http->next = HTTP_ERROR;
420: http->result = HT_CONFLICT;
421: break;
422:
423: case 410: /* Gone */
424: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GONE,
425: me->reason, (int) strlen(me->reason), "HTTPNextState");
426: http->next = HTTP_ERROR;
427: http->result = -410;
428: break;
429:
430: case 411: /* Length Required */
431: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_LENGTH_REQUIRED,
432: me->reason, (int) strlen(me->reason), "HTTPNextState");
433: http->next = HTTP_ERROR;
434: http->result = HT_LENGTH_REQUIRED;
435: break;
436:
437: case 412: /* Precondition failed */
438: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PRECON_FAILED,
439: me->reason, (int) strlen(me->reason), "HTTPNextState");
440: http->next = HTTP_ERROR;
441: http->result = -412;
442: break;
443:
444: case 413: /* Request entity too large */
445: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TOO_BIG,
446: me->reason, (int) strlen(me->reason), "HTTPNextState");
447: http->next = HTTP_ERROR;
448: http->result = -413;
449: break;
450:
451: case 414: /* Request-URI too long */
452: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_URI_TOO_BIG,
453: me->reason, (int) strlen(me->reason), "HTTPNextState");
454: http->next = HTTP_ERROR;
455: http->result = -414;
456: break;
457:
458: case 415: /* Unsupported */
459: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNSUPPORTED,
460: me->reason, (int) strlen(me->reason), "HTTPNextState");
461: http->next = HTTP_ERROR;
462: http->result = -415;
463: break;
464:
465: case 416: /* Request Range not satisfiable */
466: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_RANGE,
467: me->reason, (int) strlen(me->reason), "HTTPNextState");
468: http->next = HTTP_ERROR;
469: http->result = -416;
470: break;
471:
472: case 417: /* Expectation Failed */
473: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_EXPECTATION_FAILED,
474: me->reason, (int) strlen(me->reason), "HTTPNextState");
475: http->next = HTTP_ERROR;
476: http->result = -417;
477: break;
478:
479: case 418: /* Reauthentication required */
480: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_REAUTH,
481: me->reason, (int) strlen(me->reason), "HTTPNextState");
482: http->next = HTTP_ERROR;
483: http->result = -418;
484: break;
485:
486: case 419: /* Proxy Reauthentication required */
487: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PROXY_REAUTH,
488: me->reason, (int) strlen(me->reason), "HTTPNextState");
489: http->next = HTTP_ERROR;
490: http->result = -419;
491: break;
492:
493: default:
494: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REQUEST,
495: me->reason, (int) strlen(me->reason), "HTTPNextState");
496: http->next = HTTP_ERROR;
497: http->result = -400;
498: break;
499: }
1.134 frystyk 500: break;
501:
1.158 frystyk 502: case 5:
1.134 frystyk 503:
1.158 frystyk 504: switch (me->status) {
505: case 501:
506: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_IMPLEMENTED,
507: me->reason, (int) strlen(me->reason), "HTTPNextState");
508: http->next = HTTP_ERROR;
509: http->result = -501;
510: break;
511:
512: case 502:
513: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_GATE,
514: me->reason, (int) strlen(me->reason), "HTTPNextState");
515: http->next = HTTP_ERROR;
516: http->result = -502;
517: break;
518:
519: case 503:
520: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_DOWN,
521: me->reason, (int) strlen(me->reason), "HTTPNextState");
522: http->next = HTTP_ERROR;
523:
524: /*
525: ** If Retry-After header is found then return HT_RETRY else HT_ERROR.
526: ** The caller may want to reissue the request at a later point in time.
527: */
528: {
529: HTResponse * response = HTRequest_response(me->request);
530: if (HTResponse_retryTime(response))
531: http->result = HT_RETRY;
532: else
533: http->result = -500;
534: }
535: break;
536:
537: case 504:
538: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GATE_TIMEOUT,
539: me->reason, (int) strlen(me->reason), "HTTPNextState");
540: http->next = HTTP_ERROR;
541: http->result = -504;
542: break;
543:
544: case 505: /* Unsupported protocol version */
545: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_VERSION,
546: me->reason, (int) strlen(me->reason), "HTTPNextState");
547: http->next = HTTP_ERROR;
548: http->result = HT_BAD_VERSION;
549: break;
550:
551: case 506: /* Partial update Not Implemented */
552: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NO_PARTIAL_UPDATE,
553: me->reason, (int) strlen(me->reason), "HTTPNextState");
554: http->next = HTTP_ERROR;
555: http->result = HT_BAD_VERSION;
556: break;
557:
558: default: /* bad number */
559: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_INTERNAL,
560: me->reason, (int) strlen(me->reason), "HTTPNextState");
561: http->next = HTTP_ERROR;
562: http->result = -500;
563: break;
1.140 frystyk 564: }
1.78 frystyk 565: break;
566:
1.158 frystyk 567: default:
1.104 frystyk 568: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
1.158 frystyk 569: (void *) me->buffer, me->buflen, "HTTPNextState");
1.134 frystyk 570: http->next = HTTP_ERROR;
1.155 frystyk 571: http->result = -(me->status);
1.71 frystyk 572: break;
1.55 frystyk 573: }
574: }
575:
1.71 frystyk 576: /* ------------------------------------------------------------------------- */
577: /* HTTP Status Line Stream */
578: /* ------------------------------------------------------------------------- */
1.55 frystyk 579:
1.71 frystyk 580: /*
1.141 frystyk 581: ** Analyze the stream we have read. If it is a HTTP 1.0 or higher
1.71 frystyk 582: ** then create a MIME-stream, else create a Guess stream to find out
583: ** what the 0.9 server is sending. We need to copy the buffer as we don't
584: ** know if we can modify the contents or not.
1.78 frystyk 585: **
586: ** Stream handling is a function of the status code returned from the
587: ** server:
588: ** 200: Use `output_stream' in HTRequest structure
1.94 frystyk 589: ** else: Use `debug_stream' in HTRequest structure
1.80 frystyk 590: **
591: ** Return: YES if buffer should be written out. NO otherwise
1.56 frystyk 592: */
1.157 frystyk 593: PRIVATE int stream_pipe (HTStream * me, int length)
1.56 frystyk 594: {
1.136 frystyk 595: HTRequest * request = me->request;
596: HTNet * net = HTRequest_net(request);
1.123 frystyk 597: HTHost * host = HTNet_host(net);
1.141 frystyk 598:
1.153 frystyk 599: #if 0
600: {
601: char * uri = HTAnchor_address((HTAnchor *) HTRequest_anchor(request));
602: fprintf(stderr, "HTTP header: %s for '%s'\n", me->buffer, uri);
603: HT_FREE(uri);
604: }
605: #endif
606:
1.132 frystyk 607: /*
608: ** Just check for HTTP and not HTTP/ as NCSA server chokes on 1.1 replies
609: ** Thanks to Markku Savela <msa@msa.tte.vtt.fi>
1.141 frystyk 610:
1.132 frystyk 611: */
612: if (strncasecomp(me->buffer, "http", 4)) {
1.80 frystyk 613: int status;
1.136 frystyk 614: HTRequest_addError(request, ERR_INFO, NO, HTERR_HTTP09,
1.80 frystyk 615: (void *) me->buffer, me->buflen, "HTTPStatusStream");
1.136 frystyk 616: me->target = HTStreamStack(WWW_UNKNOWN,
617: HTRequest_outputFormat(request),
618: HTRequest_outputStream(request),
619: request, NO);
1.134 frystyk 620: me->http->next = HTTP_OK;
1.80 frystyk 621: if ((status = PUTBLOCK(me->buffer, me->buflen)) == HT_OK)
622: me->transparent = YES;
1.123 frystyk 623: HTHost_setVersion(host, HTTP_09);
1.157 frystyk 624: if (length > 0) HTHost_setConsumed(host, length);
1.80 frystyk 625: return status;
626: } else {
1.140 frystyk 627: HTResponse * response = HTRequest_response(request);
1.155 frystyk 628: char * ptr = me->buffer+5; /* Skip the HTTP part */
629: char * vptr = NULL;
630: int major = 0;
631: int minor = 0;
632: me->version = vptr = HTNextField(&ptr);
633: if (vptr) {
634: major = (int) strtol(me->version, &vptr, 10);
635: if (vptr++) minor = strtol(vptr, NULL, 10);
636: }
1.95 frystyk 637:
1.130 frystyk 638: /* Here we want to find out when to use persistent connection */
1.155 frystyk 639: if (major > 1) {
640: if (PROT_TRACE)HTTrace("HTTP Status. Major version number is %d\n", major);
641: me->target = HTErrorStream();
1.158 frystyk 642: me->status = 9999;
1.155 frystyk 643: HTTPNextState(me); /* Get next state */
1.158 frystyk 644: return HT_ERROR;
1.155 frystyk 645: } else if (minor <= 0) {
646: if (PROT_TRACE)HTTrace("HTTP Status. This is an HTTP/1.0 server\n");
1.128 frystyk 647: HTHost_setVersion(host, HTTP_10);
1.155 frystyk 648: } else { /* 1.x, x>0 family */
649: HTHost_setVersion(host, HTTP_11); /* Best we can do */
1.156 frystyk 650: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
651: if (PROT_TRACE)
652: HTTrace("HTTP........ Mode is HTTP/1.1 with NO PIPELINING\n");
1.147 frystyk 653: HTNet_setPersistent(net, YES, HT_TP_SINGLE);
1.156 frystyk 654: } else if (ConnectionMode & HTTP_11_MUX) {
655: if (PROT_TRACE)
656: HTTrace("HTTP........ Mode is HTTP/1.1 with MUXING\n");
657: HTNet_setPersistent(net, YES, HT_TP_INTERLEAVE);
1.147 frystyk 658: } else if (ConnectionMode & HTTP_FORCE_10) {
659: if (PROT_TRACE) HTTrace("HTTP........ Mode is FORCE HTTP/1.0\n");
660: HTHost_setVersion(host, HTTP_10);
661: HTNet_setPersistent(net, NO, HT_TP_SINGLE);
662: } else
663: HTNet_setPersistent(net, YES, HT_TP_PIPELINE);
1.128 frystyk 664: }
1.95 frystyk 665:
1.81 frystyk 666: me->status = atoi(HTNextField(&ptr));
667: me->reason = ptr;
668: if ((ptr = strchr(me->reason, '\r')) != NULL) /* Strip \r and \n */
669: *ptr = '0円';
670: else if ((ptr = strchr(me->reason, '\n')) != NULL)
671: *ptr = '0円';
672:
1.130 frystyk 673: /*
674: ** If it is a 1xx code then find out what to do and return until we
675: ** get the next code. In the case of Upgrade we may not get back here
676: ** at all. If we are uploading an entity then continue doing that
677: */
678: if (me->status/100 == 1) {
1.136 frystyk 679: if (HTTPInformation(me) == YES) {
680: me->buflen = 0;
681: me->state = EOL_BEGIN;
1.157 frystyk 682: if (me->info_target) (*me->info_target->isa->_free)(me->info_target);
683: me->info_target = HTStreamStack(WWW_MIME_CONT,
684: HTRequest_debugFormat(request),
685: HTRequest_debugStream(request),
686: request, NO);
687: if (length > 0) HTHost_setConsumed(host, length);
688: return HT_OK;
1.103 frystyk 689: }
1.56 frystyk 690: }
1.133 frystyk 691:
692: /*
693: ** As we are getting fresh metainformation in the HTTP response,
694: ** we clear the old metainfomation in order not to mix it with the new
695: ** one. This is particularly important for the content-length and the
1.139 frystyk 696: ** like. The TRACE and OPTIONS method just adds to the current
697: ** metainformation so in that case we don't clear the anchor.
1.133 frystyk 698: */
1.136 frystyk 699: if (me->status==200 || me->status==203 || me->status==300) {
1.140 frystyk 700: /*
701: ** 200, 203 and 300 are all fully cacheable responses. No byte
702: ** ranges or anything else make life hard in this case.
703: */
1.148 frystyk 704: HTAnchor_clearHeader(HTRequest_anchor(request));
1.140 frystyk 705: HTResponse_setCachable(response, YES);
1.136 frystyk 706: me->target = HTStreamStack(WWW_MIME,
707: HTRequest_outputFormat(request),
708: HTRequest_outputStream(request),
709: request, NO);
1.140 frystyk 710: } else if (me->status==206) {
711: /*
712: ** We got a partial response and now we must check whether
713: ** we issued a cache If-Range request or it was a new
714: ** partial response which we don't have in cache. In the latter
715: ** case, we don't cache the object and in the former we append
716: ** the result to the already existing cache entry.
717: */
718: HTReload reload = HTRequest_reloadMode(request);
719: if (reload == HT_CACHE_RANGE_VALIDATE) {
720: HTResponse_setCachable(response, YES);
721: me->target = HTStreamStack(WWW_MIME_PART,
722: HTRequest_outputFormat(request),
723: HTRequest_outputStream(request),
724: request, NO);
725: } else {
1.149 frystyk 726: HTAnchor_clearHeader(HTRequest_anchor(request));
1.140 frystyk 727: me->target = HTStreamStack(WWW_MIME,
728: HTRequest_outputFormat(request),
729: HTRequest_outputStream(request),
730: request, NO);
731: }
1.139 frystyk 732: } else if (me->status==204 || me->status==304) {
1.140 frystyk 733: HTResponse_setCachable(response, YES);
1.136 frystyk 734: me->target = HTStreamStack(WWW_MIME_HEAD,
735: HTRequest_debugFormat(request),
736: HTRequest_debugStream(request),
737: request, NO);
738: } else if (HTRequest_debugStream(request)) {
739: me->target = HTStreamStack(WWW_MIME,
740: HTRequest_debugFormat(request),
741: HTRequest_debugStream(request),
742: request, NO);
743: } else {
1.140 frystyk 744: /*
745: ** We still need to parse the MIME part in order to find any
746: ** valuable meta information which is needed from the response.
747: */
1.136 frystyk 748: me->target = HTStreamStack(WWW_MIME,
749: HTRequest_debugFormat(request),
750: HTRequest_debugStream(request),
751: request, NO);
1.133 frystyk 752: }
1.56 frystyk 753: }
1.113 frystyk 754: if (!me->target) me->target = HTErrorStream();
1.81 frystyk 755: HTTPNextState(me); /* Get next state */
1.80 frystyk 756: me->transparent = YES;
1.157 frystyk 757: if (length > 0) HTHost_setConsumed(HTNet_host(HTRequest_net(me->request)), length);
1.80 frystyk 758: return HT_OK;
1.71 frystyk 759: }
1.56 frystyk 760:
1.80 frystyk 761: /*
762: ** Searches for HTTP header line until buffer fills up or a CRLF or LF
763: ** is found
764: */
1.119 frystyk 765: PRIVATE int HTTPStatus_put_block (HTStream * me, const char * b, int l)
1.71 frystyk 766: {
1.150 frystyk 767: int status = HT_OK;
1.153 frystyk 768: int length = l;
1.146 frystyk 769: me->startLen = me->buflen;
1.80 frystyk 770: while (!me->transparent && l-- > 0) {
1.157 frystyk 771: if (me->info_target) {
772:
773: /* Put data down the 1xx return code parser until we are done. */
774: status = (*me->info_target->isa->put_block)(me->info_target, b, l+1);
775: if (status != HT_CONTINUE) return status;
776:
777: /* Now free the info stream */
778: (*me->info_target->isa->_free)(me->info_target);
779: me->info_target = NULL;
780:
781: /* Update where we are in the stream */
782: l = HTHost_remainingRead(HTNet_host(HTRequest_net(me->request)));
1.163 frystyk 783: b += (length-l);
1.159 frystyk 784: length = l;
1.163 frystyk 785: if (l <= 0) break;
1.157 frystyk 786:
1.80 frystyk 787: } else {
788: *(me->buffer+me->buflen++) = *b;
789: if (me->state == EOL_FCR) {
790: if (*b == LF) { /* Line found */
1.157 frystyk 791: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 792: } else {
793: me->state = EOL_BEGIN;
794: }
795: } else if (*b == CR) {
796: me->state = EOL_FCR;
797: } else if (*b == LF) {
1.157 frystyk 798: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.71 frystyk 799: } else {
1.80 frystyk 800: if (me->buflen >= MAX_STATUS_LEN) {
1.157 frystyk 801: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 802: }
1.71 frystyk 803: }
1.80 frystyk 804: b++;
1.71 frystyk 805: }
1.56 frystyk 806: }
1.153 frystyk 807:
1.159 frystyk 808: if (!me->transparent && length != l)
809: HTHost_setConsumed(HTNet_host(HTRequest_net(me->request)), length-l);
810:
1.99 frystyk 811: if (l > 0) return PUTBLOCK(b, l);
1.150 frystyk 812: return status;
1.56 frystyk 813: }
814:
1.119 frystyk 815: PRIVATE int HTTPStatus_put_string (HTStream * me, const char * s)
1.71 frystyk 816: {
1.80 frystyk 817: return HTTPStatus_put_block(me, s, (int) strlen(s));
1.71 frystyk 818: }
1.56 frystyk 819:
1.100 frystyk 820: PRIVATE int HTTPStatus_put_character (HTStream * me, char c)
1.71 frystyk 821: {
1.80 frystyk 822: return HTTPStatus_put_block(me, &c, 1);
823: }
824:
1.100 frystyk 825: PRIVATE int HTTPStatus_flush (HTStream * me)
1.80 frystyk 826: {
827: return (*me->target->isa->flush)(me->target);
1.71 frystyk 828: }
829:
1.100 frystyk 830: PRIVATE int HTTPStatus_free (HTStream * me)
1.71 frystyk 831: {
1.87 frystyk 832: int status = HT_OK;
833: if (me->target) {
834: if ((status = (*me->target->isa->_free)(me->target))==HT_WOULD_BLOCK)
835: return HT_WOULD_BLOCK;
836: }
1.115 frystyk 837: HT_FREE(me);
1.100 frystyk 838: return status;
1.71 frystyk 839: }
840:
1.104 frystyk 841: PRIVATE int HTTPStatus_abort (HTStream * me, HTList * e)
1.71 frystyk 842: {
843: if (me->target)
1.74 frystyk 844: ABORT_TARGET;
1.115 frystyk 845: HT_FREE(me);
1.74 frystyk 846: if (PROT_TRACE)
1.116 eric 847: HTTrace("HTTPStatus.. ABORTING...\n");
1.80 frystyk 848: return HT_ERROR;
1.71 frystyk 849: }
850:
851: /* HTTPStatus Stream
852: ** -----------------
853: */
1.119 frystyk 854: PRIVATE const HTStreamClass HTTPStatusClass =
1.71 frystyk 855: {
856: "HTTPStatus",
1.80 frystyk 857: HTTPStatus_flush,
1.71 frystyk 858: HTTPStatus_free,
859: HTTPStatus_abort,
860: HTTPStatus_put_character,
861: HTTPStatus_put_string,
862: HTTPStatus_put_block
863: };
864:
1.113 frystyk 865: PUBLIC HTStream * HTTPStatus_new (HTRequest * request,
866: void * param,
867: HTFormat input_format,
868: HTFormat output_format,
869: HTStream * output_stream)
1.71 frystyk 870: {
1.115 frystyk 871: HTStream * me;
872: if ((me = (HTStream *) HT_CALLOC(1, sizeof(HTStream))) == NULL)
873: HT_OUTOFMEM("HTTPStatus_new");
1.71 frystyk 874: me->isa = &HTTPStatusClass;
1.113 frystyk 875: if (request) {
1.126 frystyk 876: HTNet * net = HTRequest_net(request);
1.125 frystyk 877: /* Get existing copy */
878: http_info * http = (http_info *) HTNet_context(net);
1.113 frystyk 879: me->request = request;
880: me->http = http;
881: http->next = HTTP_ERROR;
882: me->state = EOL_BEGIN;
883: return me;
884: } else
885: return HTErrorStream();
1.71 frystyk 886: }
887:
888: /* ------------------------------------------------------------------------- */
889:
890: /* Load Document from HTTP Server HTLoadHTTP
1.55 frystyk 891: ** ==============================
892: **
893: ** Given a hypertext address, this routine loads a document.
894: **
895: ** On entry,
896: ** request This is the request structure
1.94 frystyk 897: ** returns HT_ERROR Error has occured in call back
898: ** HT_OK Call back was OK
1.55 frystyk 899: */
1.141 frystyk 900: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type);
901:
902: PUBLIC int HTLoadHTTP (SOCKET soc, HTRequest * request)
1.55 frystyk 903: {
904: http_info *http; /* Specific protocol information */
1.112 frystyk 905: HTParentAnchor *anchor = HTRequest_anchor(request);
1.141 frystyk 906: HTNet * net = HTRequest_net(request);
1.112 frystyk 907:
1.94 frystyk 908: /*
909: ** Initiate a new http structure and bind to request structure
910: ** This is actually state HTTP_BEGIN, but it can't be in the state
911: ** machine as we need the structure first.
912: */
1.141 frystyk 913: if (PROT_TRACE) HTTrace("HTTP........ Looking for `%s\'\n",
914: HTAnchor_physical(anchor));
915: if ((http = (http_info *) HT_CALLOC(1, sizeof(http_info))) == NULL)
916: HT_OUTOFMEM("HTLoadHTTP");
917: http->net = net;
1.157 frystyk 918: http->request = request;
1.141 frystyk 919: HTNet_setContext(net, http);
920: HTNet_setEventCallback(net, HTTPEvent);
921: HTNet_setEventParam(net, http); /* callbacks get http* */
922:
1.157 frystyk 923: return HTTPEvent(soc, http, HTEvent_BEGIN); /* get it started - ops is ignored */
924: }
925:
926: PRIVATE int FlushPutEvent (HTTimer * timer, void * param, HTEventType type)
927: {
928: http_info * http = (http_info *) param;
929: HTStream * input = HTRequest_inputStream(http->request);
930: HTPostCallback * pcbf = HTRequest_postCallback(http->request);
931:
1.165 ! frystyk 932: http->usedTimer = YES;
1.160 frystyk 933: if (timer != http->timer)
934: HTDebugBreak(__FILE__, __LINE__, "HTTP timer %p not in sync\n", timer);
1.157 frystyk 935: if (PROT_TRACE) HTTrace("Uploading... Flushing %p with timer %p\n", http, timer);
936:
937: /*
938: ** We ignore the return code here which we shouldn't!!!
939: */
940: if (http && input && pcbf) (*pcbf)(http->request, input);
941:
942: /*
1.165 ! frystyk 943: ** Delete the timer but remember that we have used it
1.157 frystyk 944: */
945: http->timer = NULL;
1.165 ! frystyk 946:
1.157 frystyk 947: return HT_OK;
1.141 frystyk 948: }
949:
950: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type)
951: {
952: http_info * http = (http_info *)pVoid;
953: int status = HT_ERROR;
954: HTNet * net = http->net;
955: HTRequest * request = HTNet_request(net);
1.144 frystyk 956: HTParentAnchor * anchor = HTRequest_anchor(request);
957: HTHost * host = HTNet_host(net);
1.141 frystyk 958:
959: /*
960: ** Check whether we have been interrupted
961: */
962: if (type == HTEvent_BEGIN) {
1.134 frystyk 963: http->next = HTTP_OK;
964: http->result = HT_ERROR;
1.141 frystyk 965: } else if (type == HTEvent_CLOSE) {
1.112 frystyk 966: HTRequest_addError(request, ERR_FATAL, NO, HTERR_INTERRUPTED,
967: NULL, 0, "HTLoadHTTP");
968: HTTPCleanup(request, HT_INTERRUPTED);
1.94 frystyk 969: return HT_OK;
1.141 frystyk 970: } else if (type == HTEvent_END) {
971: HTTPCleanup(request, http->result);
972: return HT_OK;
973: } else if (type == HTEvent_RESET) {
974: HTTPCleanup(request, HT_RECOVER_PIPE);
1.145 frystyk 975: http->state = HTTP_BEGIN;
1.141 frystyk 976: return HT_OK;
977: }
978:
1.71 frystyk 979: /* Now jump into the machine. We know the state from the previous run */
980: while (1) {
981: switch (http->state) {
1.134 frystyk 982: case HTTP_BEGIN:
1.144 frystyk 983: status = HTHost_connect(host, net, HTAnchor_physical(anchor), HTTP_PORT);
984: host = HTNet_host(net);
1.153 frystyk 985: if (status == HT_OK) {
1.140 frystyk 986:
1.123 frystyk 987: /*
1.140 frystyk 988: ** Check the protocol class to see if we have connected to a
989: ** the right class of server, in this case HTTP. If we don't
990: ** know the server then assume a HTTP/1.0
1.123 frystyk 991: */
992: {
993: char * s_class = HTHost_class(host);
1.140 frystyk 994: if (!s_class) {
995: if (HTRequest_proxy(request) == NULL)
996: HTRequest_addConnection(request, "Keep-Alive", "");
997: HTHost_setClass(host, "http");
998: } else if (strcasecomp(s_class, "http")) {
1.123 frystyk 999: HTRequest_addError(request, ERR_FATAL, NO, HTERR_CLASS,
1000: NULL, 0, "HTLoadHTTP");
1001: http->state = HTTP_ERROR;
1002: break;
1003: }
1.95 frystyk 1004: }
1.147 frystyk 1005:
1.156 frystyk 1006: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
1.147 frystyk 1007: if (PROT_TRACE) HTTrace("HTTP........ Mode is HTTP/1.1 WITH NO PIPELINING\n");
1008: HTRequest_setFlush(request, YES);
1009: } else if (ConnectionMode & HTTP_FORCE_10) {
1010: if (PROT_TRACE) HTTrace("HTTP........ Mode is FORCE HTTP/1.0\n");
1011: HTHost_setVersion(host, HTTP_10);
1012: }
1013:
1.151 frystyk 1014: if (HTNet_preemptive(net)) {
1015: if (PROT_TRACE) HTTrace("HTTP........ Force flush on preemptive load\n");
1016: HTRequest_setFlush(request, YES);
1017: }
1018:
1.147 frystyk 1019: /* Jump to next state */
1.144 frystyk 1020: http->state = HTTP_NEED_STREAM;
1.159 frystyk 1021: } else if (status == HT_WOULD_BLOCK || status == HT_PENDING) {
1.144 frystyk 1022: return HT_OK;
1.159 frystyk 1023: } else
1.144 frystyk 1024: http->state = HTTP_ERROR; /* Error or interrupt */
1025: break;
1026:
1027: case HTTP_NEED_STREAM:
1.138 frystyk 1028:
1.144 frystyk 1029: /*
1030: ** Create the stream pipe FROM the channel to the application.
1031: ** The target for the input stream pipe is set up using the
1032: ** stream stack.
1033: */
1.153 frystyk 1034: {
1.144 frystyk 1035: HTStream *me=HTStreamStack(WWW_HTTP,
1036: HTRequest_outputFormat(request),
1037: HTRequest_outputStream(request),
1038: request, YES);
1039: HTNet_setReadStream(net, me);
1040: HTRequest_setOutputConnected(request, YES);
1041: }
1.127 frystyk 1042:
1.144 frystyk 1043: /*
1044: ** Create the stream pipe TO the channel from the application
1045: ** and hook it up to the request object
1046: */
1047: {
1048: HTChannel * channel = HTHost_channel(host);
1049: HTOutputStream * output = HTChannel_getChannelOStream(channel);
1050: int version = HTHost_version(host);
1051: HTStream * app = NULL;
1052:
1.139 frystyk 1053: #ifdef HTTP_DUMP
1.144 frystyk 1054: if (PROT_TRACE) {
1.162 frystyk 1055: if (!htfp) htfp = fopen(HTTP_OUTPUT, "ab");
1056: if (htfp) {
1.144 frystyk 1057: output = (HTOutputStream *)
1.162 frystyk 1058: HTTee((HTStream *) output, HTFWriter_new(request, htfp, YES), NULL);
1.147 frystyk 1059: HTTrace("HTTP........ Dumping request to `%s\'\n", HTTP_OUTPUT);
1.144 frystyk 1060: }
1061: }
1.139 frystyk 1062: #endif /* HTTP_DUMP */
1.144 frystyk 1063: app = HTMethod_hasEntity(HTRequest_method(request)) ?
1064: HTMIMERequest_new(request,
1065: HTTPRequest_new(request, (HTStream *) output, NO,
1066: version),
1067: YES) :
1068: HTTPRequest_new(request, (HTStream *) output, YES, version);
1069: HTRequest_setInputStream(request, app);
1070: }
1.88 frystyk 1071:
1.144 frystyk 1072: /*
1073: ** Set up concurrent read/write if this request isn't the
1074: ** source for a PUT or POST. As source we don't start reading
1075: ** before all destinations are ready. If destination then
1076: ** register the input stream and get ready for read
1077: */
1078: if (HTRequest_isDestination(request)) {
1079: HTHost_register(host, net, HTEvent_READ);
1080: HTRequest_linkDestination(request);
1081: }
1082: http->state = HTTP_CONNECTED;
1083: type = HTEvent_WRITE; /* fresh, so try a write */
1.71 frystyk 1084: break;
1085:
1.87 frystyk 1086: /* As we can do simultanous read and write this is now one state */
1.141 frystyk 1087: case HTTP_CONNECTED:
1088: if (type == HTEvent_WRITE) {
1.157 frystyk 1089: HTStream * input = HTRequest_inputStream(request);
1090: HTPostCallback * pcbf = HTRequest_postCallback(request);
1091: status = HTRequest_flush(request) ?
1092: HTHost_forceFlush(host) : (*input->isa->flush)(input);
1093:
1094: /*
1095: ** Check to see if we are uploading something or just a normal
1096: ** GET kind of thing.
1097: */
1098: if (pcbf) {
1099: if (http->lock == NO) {
1100: int retrys = HTRequest_retrys(request);
1101: ms_t delay = retrys > 3 ? 3000 : 2000;
1.165 ! frystyk 1102: if (!http->timer && !http->usedTimer) {
1.162 frystyk 1103: http->timer = HTTimer_new(NULL, FlushPutEvent,
1104: http, delay, YES, NO);
1.157 frystyk 1105: if (PROT_TRACE)
1.165 ! frystyk 1106: HTTrace("Uploading... Holding %p for %lu ms using time %p\n",
! 1107: http, delay, http->timer);
1.157 frystyk 1108: HTHost_register(host, net, HTEvent_READ);
1109: }
1110: http->lock = YES;
1111: }
1112: type = HTEvent_READ;
1113: } else {
1114:
1115: /*
1116: ** Check to see if we can start a new request
1117: ** pending in the host object.
1118: */
1119: HTHost_launchPending(host);
1120: type = HTEvent_READ;
1121: }
1122:
1123: /* Now check the status code */
1124: if (status == HT_WOULD_BLOCK)
1125: return HT_OK;
1126: else if (status == HT_PAUSE || status == HT_LOADED) {
1127: type = HTEvent_READ;
1128: } else if (status==HT_CLOSED)
1129: http->state = HTTP_RECOVER_PIPE;
1130: else if (status == HT_ERROR) {
1131: http->result = HT_INTERRUPTED;
1132: http->state = HTTP_ERROR;
1133: break;
1134: }
1135: } else if (type == HTEvent_FLUSH) {
1136: HTStream * input = HTRequest_inputStream(request);
1137: if (input == NULL)
1138: return HT_ERROR;
1139: return (*input->isa->flush)(input);
1140: } else if (type == HTEvent_READ) {
1141: status = HTHost_read(host, net);
1142: if (status == HT_WOULD_BLOCK)
1143: return HT_OK;
1144: else if (status == HT_CONTINUE) {
1145: if (PROT_TRACE) HTTrace("HTTP........ Continuing\n");
1146: http->lock = NO;
1147: continue;
1148: } else if (status==HT_LOADED)
1149: http->state = http->next; /* Jump to next state (OK or ERROR) */
1150: else if (status==HT_CLOSED)
1151: http->state = HTTP_RECOVER_PIPE;
1152: else
1153: http->state = HTTP_ERROR;
1154: } else {
1155: http->state = HTTP_ERROR; /* don't know how to handle OOB */
1156: }
1157: break;
1.141 frystyk 1158:
1.134 frystyk 1159: case HTTP_OK:
1.88 frystyk 1160: if (HTRequest_isPostWeb(request)) {
1.91 frystyk 1161: if (HTRequest_isDestination(request)) {
1.126 frystyk 1162: HTRequest * source = HTRequest_source(request);
1.91 frystyk 1163: HTLink *link =
1.127 frystyk 1164: HTLink_find((HTAnchor *)HTRequest_anchor(source),
1.112 frystyk 1165: (HTAnchor *) anchor);
1.109 frystyk 1166: HTLink_setResult(link, HT_LINK_OK);
1.91 frystyk 1167: }
1.112 frystyk 1168: }
1.134 frystyk 1169: HTTPCleanup(request, http->result);
1.94 frystyk 1170: return HT_OK;
1.71 frystyk 1171: break;
1.141 frystyk 1172:
1173: case HTTP_RECOVER_PIPE:
1174: {
1175: /*
1176: ** If this is a persistent connection and we get a close
1177: ** then it is an error and we should recover from it by
1178: ** restarting the pipe line of requests if any
1179: */
1.151 frystyk 1180: if (HTHost_isPersistent(host) && !HTHost_closeNotification(host)) {
1.143 frystyk 1181: if (host == NULL) return HT_ERROR;
1.144 frystyk 1182: HTRequest_setFlush(request, YES);
1183: HTHost_recoverPipe(host);
1.162 frystyk 1184: #if 0
1185: /* Is handled from within HTHost_recoverPipe */
1.144 frystyk 1186: http->state = HTTP_BEGIN;
1187: HTHost_launchPending(host);
1.162 frystyk 1188: #endif
1.144 frystyk 1189: return HT_OK;
1.141 frystyk 1190: } else
1191: http->state = HTTP_OK;
1192: }
1.143 frystyk 1193: break;
1.141 frystyk 1194:
1.71 frystyk 1195: case HTTP_ERROR:
1.143 frystyk 1196: if (HTRequest_isPostWeb(request)) {
1197: if (HTRequest_isDestination(request)) {
1198: HTRequest * source = HTRequest_source(request);
1199: HTLink *link =
1200: HTLink_find((HTAnchor *)HTRequest_anchor(source),
1201: (HTAnchor *) anchor);
1202: HTLink_setResult(link, HT_LINK_ERROR);
1203: }
1204: HTRequest_killPostWeb(request);
1205: }
1206: HTTPCleanup(request, http->result);
1207: return HT_OK;
1208: break;
1209:
1.141 frystyk 1210: default:
1.160 frystyk 1211: HTDebugBreak(__FILE__, __LINE__, "Bad http state %d\n", http->state);
1.71 frystyk 1212: }
1213: } /* End of while(1) */
1214: }
1.88 frystyk 1215:
1.147 frystyk 1216: PUBLIC void HTTP_setConnectionMode (HTTPConnectionMode mode)
1217: {
1218: ConnectionMode = mode;
1219: }
1220:
1221: PUBLIC HTTPConnectionMode HTTP_connectionMode (void)
1222: {
1223: return ConnectionMode;
1224: }
1.21 luotonen 1225:
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