Annotation of libwww/Library/src/HTTP.c, revision 1.166
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.
1.166 ! frystyk 6: ** @(#) $Id: HTTP.c,v 1.165 1998年07月22日 01:31:16 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);
1.166 ! frystyk 131: } else if (status == HT_TIMEOUT) {
! 132: HTAlertCallback * cbf = HTAlert_find(HT_PROG_TIMEOUT);
! 133: if (cbf) (*cbf)(req, HT_PROG_TIMEOUT,
! 134: HT_MSG_NULL, NULL, NULL, NULL);
1.164 frystyk 135: }
1.166 ! frystyk 136:
1.94 frystyk 137: /* Free stream with data TO network */
1.112 frystyk 138: if (HTRequest_isDestination(req))
139: HTRequest_removeDestination(req);
1.126 frystyk 140: else if (input) {
1.166 ! frystyk 141: if (status==HT_INTERRUPTED || status==HT_RECOVER_PIPE || status==HT_TIMEOUT)
1.126 frystyk 142: (*input->isa->abort)(input, NULL);
1.94 frystyk 143: else
1.126 frystyk 144: (*input->isa->_free)(input);
145: HTRequest_setInputStream(req, NULL);
1.94 frystyk 146: }
1.88 frystyk 147:
1.144 frystyk 148: /*
1.157 frystyk 149: ** Remove if we have registered an upload function as a callback
150: */
151: if (http->timer) {
152: HTTimer_delete(http->timer);
153: http->timer = NULL;
154: }
155:
156: /*
1.144 frystyk 157: ** Remove the request object and our own context structure for http.
158: */
159: if (status != HT_RECOVER_PIPE) {
1.153 frystyk 160: HTNet_delete(net, status);
1.141 frystyk 161: HT_FREE(http);
162: }
1.94 frystyk 163: return YES;
1.55 frystyk 164: }
165:
1.71 frystyk 166: /*
1.130 frystyk 167: ** Informational 1xx codes are handled separately
1.136 frystyk 168: ** Returns YES if we should continue, NO if we should stop
1.55 frystyk 169: */
1.130 frystyk 170: PRIVATE BOOL HTTPInformation (HTStream * me)
1.55 frystyk 171: {
1.136 frystyk 172: http_info * http = me->http;
1.71 frystyk 173: switch (me->status) {
174:
1.136 frystyk 175: case 100:
1.161 frystyk 176: #if 0
1.136 frystyk 177: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CONTINUE,
178: me->reason, (int) strlen(me->reason),
179: "HTTPInformation");
1.161 frystyk 180: #endif
1.136 frystyk 181: return YES;
182: break;
183:
1.130 frystyk 184: case 101:
1.136 frystyk 185: /*
186: ** We consider 101 Switching as a final state and exit this request
187: */
1.130 frystyk 188: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_SWITCHING,
1.127 frystyk 189: me->reason, (int) strlen(me->reason),
1.130 frystyk 190: "HTTPInformation");
1.136 frystyk 191: http->next = HTTP_OK;
192: http->result = HT_UPGRADE;
1.127 frystyk 193: break;
194:
1.130 frystyk 195: default:
1.136 frystyk 196: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
197: (void *) me->buffer, me->buflen, "HTTPNextState");
198: http->next = HTTP_ERROR;
199: http->result = HT_ERROR;
1.127 frystyk 200: break;
1.130 frystyk 201: }
1.136 frystyk 202: return NO;
1.130 frystyk 203: }
204:
1.158 frystyk 205:
206:
1.130 frystyk 207: /*
208: ** This is a big switch handling all HTTP return codes. It puts in any
209: ** appropiate error message and decides whether we should expect data
210: ** or not.
211: */
212: PRIVATE void HTTPNextState (HTStream * me)
213: {
1.134 frystyk 214: http_info * http = me->http;
1.158 frystyk 215: int error_class = me->status / 100;
216: switch (error_class) {
1.127 frystyk 217:
1.158 frystyk 218: case 0: /* 0.9 response */
219: case 2:
1.112 frystyk 220:
1.158 frystyk 221: switch (me->status) {
1.112 frystyk 222:
1.158 frystyk 223: case 201: /* Created */
224: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CREATED,
225: me->reason, (int) strlen(me->reason),
226: "HTTPNextState");
227: http->next = HTTP_OK;
228: http->result = HT_CREATED;
229: break;
230:
231: case 202: /* Accepted */
232: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_ACCEPTED,
233: me->reason, (int) strlen(me->reason),
234: "HTTPNextState");
235: http->next = HTTP_OK;
236: http->result = HT_ACCEPTED;
237: break;
238:
239: case 203: /* Non-authoritative information */
240: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NON_AUTHORITATIVE,
241: me->reason, (int) strlen(me->reason),
242: "HTTPNextState");
243: http->next = HTTP_OK;
244: http->result = HT_LOADED;
245: break;
246:
247: case 204: /* No Response */
248: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NO_CONTENT,
249: me->reason, (int) strlen(me->reason),
250: "HTTPNextState");
251: http->next = HTTP_OK;
252: http->result = HT_NO_DATA;
253: break;
254:
255: case 205: /* Reset Content */
256: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_RESET,
257: me->reason, (int) strlen(me->reason),
258: "HTTPNextState");
259: http->next = HTTP_OK;
260: http->result = HT_RESET_CONTENT;
261: break;
262:
263: case 206: /* Partial Content */
264: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL,
265: me->reason, (int) strlen(me->reason),
266: "HTTPNextState");
267: http->next = HTTP_OK;
268: http->result = HT_PARTIAL_CONTENT;
269: break;
270:
271: case 207: /* Partial Update OK */
272: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL_OK,
273: me->reason, (int) strlen(me->reason),
274: "HTTPNextState");
275: http->next = HTTP_OK;
276: http->result = HT_PARTIAL_CONTENT;
277: break;
278:
279: default:
280: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_OK,
281: me->reason, (int) strlen(me->reason),
282: "HTTPNextState");
283: http->next = HTTP_OK;
284: http->result = HT_LOADED;
285: break;
286: }
1.134 frystyk 287: break;
288:
1.158 frystyk 289: case 3:
1.134 frystyk 290:
1.158 frystyk 291: switch (me->status) {
1.78 frystyk 292:
1.158 frystyk 293: case 301: /* Moved */
294: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MOVED,
295: me->reason, (int) strlen(me->reason),
296: "HTTPNextState");
297: http->next = HTTP_ERROR;
298: http->result = HT_PERM_REDIRECT;
299: break;
300:
301: case 302: /* Found */
302: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_FOUND,
303: me->reason, (int) strlen(me->reason),
304: "HTTPNextState");
305: http->next = HTTP_ERROR;
306: http->result = HT_FOUND;
307: break;
1.55 frystyk 308:
1.158 frystyk 309: case 303: /* Method */
310: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_METHOD,
311: me->reason, (int) strlen(me->reason),
312: "HTTPNextState");
313: http->next = HTTP_ERROR;
314: http->result = HT_SEE_OTHER;
315: break;
316:
317: case 304: /* Not Modified */
318: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NOT_MODIFIED,
319: me->reason, (int) strlen(me->reason),
320: "HTTPNextState");
321: http->next = HTTP_OK;
322: http->result = HT_NOT_MODIFIED;
323: break;
1.134 frystyk 324:
1.158 frystyk 325: case 305: /* Use proxy */
326: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_USE_PROXY,
327: me->reason, (int) strlen(me->reason),
328: "HTTPNextState");
329: http->next = HTTP_ERROR;
330: http->result = HT_USE_PROXY;
331: break;
1.55 frystyk 332:
1.152 frystyk 333: #if 0
1.158 frystyk 334: case 306: /* Use proxy */
335: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PROXY_REDIRECT,
336: me->reason, (int) strlen(me->reason),
337: "HTTPNextState");
338: http->next = HTTP_ERROR;
339: http->result = HT_USE_PROXY;
340: break;
1.152 frystyk 341: #endif
342:
1.158 frystyk 343: case 307: /* Use proxy */
344: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_TEMP_REDIRECT,
345: me->reason, (int) strlen(me->reason),
346: "HTTPNextState");
347: http->next = HTTP_ERROR;
348: http->result = HT_TEMP_REDIRECT;
349: break;
350:
351: default:
352: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MULTIPLE,
353: me->reason, (int) strlen(me->reason),
354: "HTTPNextState");
355: http->next = HTTP_OK;
356: http->result = HT_LOADED;
357: break;
358: }
359: break;
360:
361: case 4:
362:
363: switch (me->status) {
364: case 401:
365: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNAUTHORIZED,
366: me->reason, (int) strlen(me->reason), "HTTPNextState");
367: http->next = HTTP_ERROR;
368: http->result = HT_NO_ACCESS;
369: break;
1.152 frystyk 370:
1.158 frystyk 371: case 402: /* Payment required */
372: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PAYMENT_REQUIRED,
373: me->reason, (int) strlen(me->reason), "HTTPNextState");
374: http->next = HTTP_ERROR;
375: http->result = -402;
376: break;
1.71 frystyk 377:
1.158 frystyk 378: case 403: /* Forbidden */
379: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_FORBIDDEN,
380: me->reason, (int) strlen(me->reason), "HTTPNextState");
381: http->next = HTTP_ERROR;
382: http->result = HT_FORBIDDEN;
383: break;
1.55 frystyk 384:
1.158 frystyk 385: case 404: /* Not Found */
386: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_FOUND,
387: me->reason, (int) strlen(me->reason), "HTTPNextState");
388: http->next = HTTP_ERROR;
389: http->result = -404;
390: break;
1.55 frystyk 391:
1.158 frystyk 392: case 405: /* Not Allowed */
393: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_ALLOWED,
394: me->reason, (int) strlen(me->reason), "HTTPNextState");
395: http->next = HTTP_ERROR;
396: http->result = -405;
397: break;
398:
399: case 406: /* None Acceptable */
400: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NONE_ACCEPTABLE,
401: me->reason, (int) strlen(me->reason), "HTTPNextState");
402: http->next = HTTP_ERROR;
403: http->result = HT_NOT_ACCEPTABLE;
404: break;
405:
406: case 407: /* Proxy Authentication Required */
407: HTRequest_addError(me->request, ERR_FATAL, NO,HTERR_PROXY_UNAUTHORIZED,
408: me->reason, (int) strlen(me->reason), "HTTPNextState");
409: http->next = HTTP_ERROR;
410: http->result = HT_NO_PROXY_ACCESS;
411: break;
412:
413: case 408: /* Request Timeout */
414: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TIMEOUT,
415: me->reason, (int) strlen(me->reason), "HTTPNextState");
416: http->next = HTTP_ERROR;
417: http->result = -408;
418: break;
419:
420: case 409: /* Conflict */
421: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_CONFLICT,
422: me->reason, (int) strlen(me->reason), "HTTPNextState");
423: http->next = HTTP_ERROR;
424: http->result = HT_CONFLICT;
425: break;
426:
427: case 410: /* Gone */
428: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GONE,
429: me->reason, (int) strlen(me->reason), "HTTPNextState");
430: http->next = HTTP_ERROR;
431: http->result = -410;
432: break;
433:
434: case 411: /* Length Required */
435: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_LENGTH_REQUIRED,
436: me->reason, (int) strlen(me->reason), "HTTPNextState");
437: http->next = HTTP_ERROR;
438: http->result = HT_LENGTH_REQUIRED;
439: break;
440:
441: case 412: /* Precondition failed */
442: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PRECON_FAILED,
443: me->reason, (int) strlen(me->reason), "HTTPNextState");
444: http->next = HTTP_ERROR;
445: http->result = -412;
446: break;
447:
448: case 413: /* Request entity too large */
449: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TOO_BIG,
450: me->reason, (int) strlen(me->reason), "HTTPNextState");
451: http->next = HTTP_ERROR;
452: http->result = -413;
453: break;
454:
455: case 414: /* Request-URI too long */
456: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_URI_TOO_BIG,
457: me->reason, (int) strlen(me->reason), "HTTPNextState");
458: http->next = HTTP_ERROR;
459: http->result = -414;
460: break;
461:
462: case 415: /* Unsupported */
463: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNSUPPORTED,
464: me->reason, (int) strlen(me->reason), "HTTPNextState");
465: http->next = HTTP_ERROR;
466: http->result = -415;
467: break;
468:
469: case 416: /* Request Range not satisfiable */
470: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_RANGE,
471: me->reason, (int) strlen(me->reason), "HTTPNextState");
472: http->next = HTTP_ERROR;
473: http->result = -416;
474: break;
475:
476: case 417: /* Expectation Failed */
477: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_EXPECTATION_FAILED,
478: me->reason, (int) strlen(me->reason), "HTTPNextState");
479: http->next = HTTP_ERROR;
480: http->result = -417;
481: break;
482:
483: case 418: /* Reauthentication required */
484: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_REAUTH,
485: me->reason, (int) strlen(me->reason), "HTTPNextState");
486: http->next = HTTP_ERROR;
487: http->result = -418;
488: break;
489:
490: case 419: /* Proxy Reauthentication required */
491: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PROXY_REAUTH,
492: me->reason, (int) strlen(me->reason), "HTTPNextState");
493: http->next = HTTP_ERROR;
494: http->result = -419;
495: break;
496:
497: default:
498: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REQUEST,
499: me->reason, (int) strlen(me->reason), "HTTPNextState");
500: http->next = HTTP_ERROR;
501: http->result = -400;
502: break;
503: }
1.134 frystyk 504: break;
505:
1.158 frystyk 506: case 5:
1.134 frystyk 507:
1.158 frystyk 508: switch (me->status) {
509: case 501:
510: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_IMPLEMENTED,
511: me->reason, (int) strlen(me->reason), "HTTPNextState");
512: http->next = HTTP_ERROR;
513: http->result = -501;
514: break;
515:
516: case 502:
517: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_GATE,
518: me->reason, (int) strlen(me->reason), "HTTPNextState");
519: http->next = HTTP_ERROR;
520: http->result = -502;
521: break;
522:
523: case 503:
524: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_DOWN,
525: me->reason, (int) strlen(me->reason), "HTTPNextState");
526: http->next = HTTP_ERROR;
527:
528: /*
529: ** If Retry-After header is found then return HT_RETRY else HT_ERROR.
530: ** The caller may want to reissue the request at a later point in time.
531: */
532: {
533: HTResponse * response = HTRequest_response(me->request);
534: if (HTResponse_retryTime(response))
535: http->result = HT_RETRY;
536: else
537: http->result = -500;
538: }
539: break;
540:
541: case 504:
542: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GATE_TIMEOUT,
543: me->reason, (int) strlen(me->reason), "HTTPNextState");
544: http->next = HTTP_ERROR;
545: http->result = -504;
546: break;
547:
548: case 505: /* Unsupported protocol version */
549: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_VERSION,
550: me->reason, (int) strlen(me->reason), "HTTPNextState");
551: http->next = HTTP_ERROR;
552: http->result = HT_BAD_VERSION;
553: break;
554:
555: case 506: /* Partial update Not Implemented */
556: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NO_PARTIAL_UPDATE,
557: me->reason, (int) strlen(me->reason), "HTTPNextState");
558: http->next = HTTP_ERROR;
559: http->result = HT_BAD_VERSION;
560: break;
561:
562: default: /* bad number */
563: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_INTERNAL,
564: me->reason, (int) strlen(me->reason), "HTTPNextState");
565: http->next = HTTP_ERROR;
566: http->result = -500;
567: break;
1.140 frystyk 568: }
1.78 frystyk 569: break;
570:
1.158 frystyk 571: default:
1.104 frystyk 572: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
1.158 frystyk 573: (void *) me->buffer, me->buflen, "HTTPNextState");
1.134 frystyk 574: http->next = HTTP_ERROR;
1.155 frystyk 575: http->result = -(me->status);
1.71 frystyk 576: break;
1.55 frystyk 577: }
578: }
579:
1.71 frystyk 580: /* ------------------------------------------------------------------------- */
581: /* HTTP Status Line Stream */
582: /* ------------------------------------------------------------------------- */
1.55 frystyk 583:
1.71 frystyk 584: /*
1.141 frystyk 585: ** Analyze the stream we have read. If it is a HTTP 1.0 or higher
1.71 frystyk 586: ** then create a MIME-stream, else create a Guess stream to find out
587: ** what the 0.9 server is sending. We need to copy the buffer as we don't
588: ** know if we can modify the contents or not.
1.78 frystyk 589: **
590: ** Stream handling is a function of the status code returned from the
591: ** server:
592: ** 200: Use `output_stream' in HTRequest structure
1.94 frystyk 593: ** else: Use `debug_stream' in HTRequest structure
1.80 frystyk 594: **
595: ** Return: YES if buffer should be written out. NO otherwise
1.56 frystyk 596: */
1.157 frystyk 597: PRIVATE int stream_pipe (HTStream * me, int length)
1.56 frystyk 598: {
1.136 frystyk 599: HTRequest * request = me->request;
600: HTNet * net = HTRequest_net(request);
1.123 frystyk 601: HTHost * host = HTNet_host(net);
1.141 frystyk 602:
1.153 frystyk 603: #if 0
604: {
605: char * uri = HTAnchor_address((HTAnchor *) HTRequest_anchor(request));
606: fprintf(stderr, "HTTP header: %s for '%s'\n", me->buffer, uri);
607: HT_FREE(uri);
608: }
609: #endif
610:
1.132 frystyk 611: /*
612: ** Just check for HTTP and not HTTP/ as NCSA server chokes on 1.1 replies
613: ** Thanks to Markku Savela <msa@msa.tte.vtt.fi>
1.141 frystyk 614:
1.132 frystyk 615: */
616: if (strncasecomp(me->buffer, "http", 4)) {
1.80 frystyk 617: int status;
1.136 frystyk 618: HTRequest_addError(request, ERR_INFO, NO, HTERR_HTTP09,
1.80 frystyk 619: (void *) me->buffer, me->buflen, "HTTPStatusStream");
1.136 frystyk 620: me->target = HTStreamStack(WWW_UNKNOWN,
621: HTRequest_outputFormat(request),
622: HTRequest_outputStream(request),
623: request, NO);
1.134 frystyk 624: me->http->next = HTTP_OK;
1.80 frystyk 625: if ((status = PUTBLOCK(me->buffer, me->buflen)) == HT_OK)
626: me->transparent = YES;
1.123 frystyk 627: HTHost_setVersion(host, HTTP_09);
1.157 frystyk 628: if (length > 0) HTHost_setConsumed(host, length);
1.80 frystyk 629: return status;
630: } else {
1.140 frystyk 631: HTResponse * response = HTRequest_response(request);
1.155 frystyk 632: char * ptr = me->buffer+5; /* Skip the HTTP part */
633: char * vptr = NULL;
634: int major = 0;
635: int minor = 0;
636: me->version = vptr = HTNextField(&ptr);
637: if (vptr) {
638: major = (int) strtol(me->version, &vptr, 10);
639: if (vptr++) minor = strtol(vptr, NULL, 10);
640: }
1.95 frystyk 641:
1.130 frystyk 642: /* Here we want to find out when to use persistent connection */
1.155 frystyk 643: if (major > 1) {
644: if (PROT_TRACE)HTTrace("HTTP Status. Major version number is %d\n", major);
645: me->target = HTErrorStream();
1.158 frystyk 646: me->status = 9999;
1.155 frystyk 647: HTTPNextState(me); /* Get next state */
1.158 frystyk 648: return HT_ERROR;
1.155 frystyk 649: } else if (minor <= 0) {
650: if (PROT_TRACE)HTTrace("HTTP Status. This is an HTTP/1.0 server\n");
1.128 frystyk 651: HTHost_setVersion(host, HTTP_10);
1.155 frystyk 652: } else { /* 1.x, x>0 family */
653: HTHost_setVersion(host, HTTP_11); /* Best we can do */
1.156 frystyk 654: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
655: if (PROT_TRACE)
656: HTTrace("HTTP........ Mode is HTTP/1.1 with NO PIPELINING\n");
1.147 frystyk 657: HTNet_setPersistent(net, YES, HT_TP_SINGLE);
1.156 frystyk 658: } else if (ConnectionMode & HTTP_11_MUX) {
659: if (PROT_TRACE)
660: HTTrace("HTTP........ Mode is HTTP/1.1 with MUXING\n");
661: HTNet_setPersistent(net, YES, HT_TP_INTERLEAVE);
1.147 frystyk 662: } else if (ConnectionMode & HTTP_FORCE_10) {
663: if (PROT_TRACE) HTTrace("HTTP........ Mode is FORCE HTTP/1.0\n");
664: HTHost_setVersion(host, HTTP_10);
665: HTNet_setPersistent(net, NO, HT_TP_SINGLE);
666: } else
667: HTNet_setPersistent(net, YES, HT_TP_PIPELINE);
1.128 frystyk 668: }
1.95 frystyk 669:
1.81 frystyk 670: me->status = atoi(HTNextField(&ptr));
671: me->reason = ptr;
672: if ((ptr = strchr(me->reason, '\r')) != NULL) /* Strip \r and \n */
673: *ptr = '0円';
674: else if ((ptr = strchr(me->reason, '\n')) != NULL)
675: *ptr = '0円';
676:
1.130 frystyk 677: /*
678: ** If it is a 1xx code then find out what to do and return until we
679: ** get the next code. In the case of Upgrade we may not get back here
680: ** at all. If we are uploading an entity then continue doing that
681: */
682: if (me->status/100 == 1) {
1.136 frystyk 683: if (HTTPInformation(me) == YES) {
684: me->buflen = 0;
685: me->state = EOL_BEGIN;
1.157 frystyk 686: if (me->info_target) (*me->info_target->isa->_free)(me->info_target);
687: me->info_target = HTStreamStack(WWW_MIME_CONT,
688: HTRequest_debugFormat(request),
689: HTRequest_debugStream(request),
690: request, NO);
691: if (length > 0) HTHost_setConsumed(host, length);
692: return HT_OK;
1.103 frystyk 693: }
1.56 frystyk 694: }
1.133 frystyk 695:
696: /*
697: ** As we are getting fresh metainformation in the HTTP response,
698: ** we clear the old metainfomation in order not to mix it with the new
699: ** one. This is particularly important for the content-length and the
1.139 frystyk 700: ** like. The TRACE and OPTIONS method just adds to the current
701: ** metainformation so in that case we don't clear the anchor.
1.133 frystyk 702: */
1.136 frystyk 703: if (me->status==200 || me->status==203 || me->status==300) {
1.140 frystyk 704: /*
705: ** 200, 203 and 300 are all fully cacheable responses. No byte
706: ** ranges or anything else make life hard in this case.
707: */
1.148 frystyk 708: HTAnchor_clearHeader(HTRequest_anchor(request));
1.166 ! frystyk 709: HTResponse_setCachable(response, HT_CACHE_ALL);
1.136 frystyk 710: me->target = HTStreamStack(WWW_MIME,
711: HTRequest_outputFormat(request),
712: HTRequest_outputStream(request),
713: request, NO);
1.140 frystyk 714: } else if (me->status==206) {
715: /*
716: ** We got a partial response and now we must check whether
717: ** we issued a cache If-Range request or it was a new
718: ** partial response which we don't have in cache. In the latter
719: ** case, we don't cache the object and in the former we append
720: ** the result to the already existing cache entry.
721: */
722: HTReload reload = HTRequest_reloadMode(request);
723: if (reload == HT_CACHE_RANGE_VALIDATE) {
1.166 ! frystyk 724: HTResponse_setCachable(response, HT_CACHE_ALL);
1.140 frystyk 725: me->target = HTStreamStack(WWW_MIME_PART,
726: HTRequest_outputFormat(request),
727: HTRequest_outputStream(request),
728: request, NO);
729: } else {
1.149 frystyk 730: HTAnchor_clearHeader(HTRequest_anchor(request));
1.140 frystyk 731: me->target = HTStreamStack(WWW_MIME,
732: HTRequest_outputFormat(request),
733: HTRequest_outputStream(request),
734: request, NO);
735: }
1.139 frystyk 736: } else if (me->status==204 || me->status==304) {
1.166 ! frystyk 737: HTResponse_setCachable(response, HT_CACHE_ALL);
1.136 frystyk 738: me->target = HTStreamStack(WWW_MIME_HEAD,
739: HTRequest_debugFormat(request),
740: HTRequest_debugStream(request),
741: request, NO);
742: } else if (HTRequest_debugStream(request)) {
1.166 ! frystyk 743: if (me->status == 201) HTResponse_setCachable(response, HT_CACHE_ETAG);
1.136 frystyk 744: me->target = HTStreamStack(WWW_MIME,
745: HTRequest_debugFormat(request),
746: HTRequest_debugStream(request),
747: request, NO);
748: } else {
1.140 frystyk 749: /*
750: ** We still need to parse the MIME part in order to find any
751: ** valuable meta information which is needed from the response.
752: */
1.166 ! frystyk 753: if (me->status == 201) HTResponse_setCachable(response, HT_CACHE_ETAG);
1.136 frystyk 754: me->target = HTStreamStack(WWW_MIME,
755: HTRequest_debugFormat(request),
756: HTRequest_debugStream(request),
757: request, NO);
1.133 frystyk 758: }
1.56 frystyk 759: }
1.113 frystyk 760: if (!me->target) me->target = HTErrorStream();
1.81 frystyk 761: HTTPNextState(me); /* Get next state */
1.80 frystyk 762: me->transparent = YES;
1.157 frystyk 763: if (length > 0) HTHost_setConsumed(HTNet_host(HTRequest_net(me->request)), length);
1.80 frystyk 764: return HT_OK;
1.71 frystyk 765: }
1.56 frystyk 766:
1.80 frystyk 767: /*
768: ** Searches for HTTP header line until buffer fills up or a CRLF or LF
769: ** is found
770: */
1.119 frystyk 771: PRIVATE int HTTPStatus_put_block (HTStream * me, const char * b, int l)
1.71 frystyk 772: {
1.150 frystyk 773: int status = HT_OK;
1.153 frystyk 774: int length = l;
1.146 frystyk 775: me->startLen = me->buflen;
1.80 frystyk 776: while (!me->transparent && l-- > 0) {
1.157 frystyk 777: if (me->info_target) {
778:
779: /* Put data down the 1xx return code parser until we are done. */
780: status = (*me->info_target->isa->put_block)(me->info_target, b, l+1);
781: if (status != HT_CONTINUE) return status;
782:
783: /* Now free the info stream */
784: (*me->info_target->isa->_free)(me->info_target);
785: me->info_target = NULL;
786:
787: /* Update where we are in the stream */
788: l = HTHost_remainingRead(HTNet_host(HTRequest_net(me->request)));
1.163 frystyk 789: b += (length-l);
1.159 frystyk 790: length = l;
1.163 frystyk 791: if (l <= 0) break;
1.157 frystyk 792:
1.80 frystyk 793: } else {
794: *(me->buffer+me->buflen++) = *b;
795: if (me->state == EOL_FCR) {
796: if (*b == LF) { /* Line found */
1.157 frystyk 797: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 798: } else {
799: me->state = EOL_BEGIN;
800: }
801: } else if (*b == CR) {
802: me->state = EOL_FCR;
803: } else if (*b == LF) {
1.157 frystyk 804: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.71 frystyk 805: } else {
1.80 frystyk 806: if (me->buflen >= MAX_STATUS_LEN) {
1.157 frystyk 807: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 808: }
1.71 frystyk 809: }
1.80 frystyk 810: b++;
1.71 frystyk 811: }
1.56 frystyk 812: }
1.153 frystyk 813:
1.159 frystyk 814: if (!me->transparent && length != l)
815: HTHost_setConsumed(HTNet_host(HTRequest_net(me->request)), length-l);
816:
1.99 frystyk 817: if (l > 0) return PUTBLOCK(b, l);
1.150 frystyk 818: return status;
1.56 frystyk 819: }
820:
1.119 frystyk 821: PRIVATE int HTTPStatus_put_string (HTStream * me, const char * s)
1.71 frystyk 822: {
1.80 frystyk 823: return HTTPStatus_put_block(me, s, (int) strlen(s));
1.71 frystyk 824: }
1.56 frystyk 825:
1.100 frystyk 826: PRIVATE int HTTPStatus_put_character (HTStream * me, char c)
1.71 frystyk 827: {
1.80 frystyk 828: return HTTPStatus_put_block(me, &c, 1);
829: }
830:
1.100 frystyk 831: PRIVATE int HTTPStatus_flush (HTStream * me)
1.80 frystyk 832: {
833: return (*me->target->isa->flush)(me->target);
1.71 frystyk 834: }
835:
1.100 frystyk 836: PRIVATE int HTTPStatus_free (HTStream * me)
1.71 frystyk 837: {
1.87 frystyk 838: int status = HT_OK;
839: if (me->target) {
840: if ((status = (*me->target->isa->_free)(me->target))==HT_WOULD_BLOCK)
841: return HT_WOULD_BLOCK;
842: }
1.115 frystyk 843: HT_FREE(me);
1.100 frystyk 844: return status;
1.71 frystyk 845: }
846:
1.104 frystyk 847: PRIVATE int HTTPStatus_abort (HTStream * me, HTList * e)
1.71 frystyk 848: {
849: if (me->target)
1.74 frystyk 850: ABORT_TARGET;
1.115 frystyk 851: HT_FREE(me);
1.74 frystyk 852: if (PROT_TRACE)
1.116 eric 853: HTTrace("HTTPStatus.. ABORTING...\n");
1.80 frystyk 854: return HT_ERROR;
1.71 frystyk 855: }
856:
857: /* HTTPStatus Stream
858: ** -----------------
859: */
1.119 frystyk 860: PRIVATE const HTStreamClass HTTPStatusClass =
1.71 frystyk 861: {
862: "HTTPStatus",
1.80 frystyk 863: HTTPStatus_flush,
1.71 frystyk 864: HTTPStatus_free,
865: HTTPStatus_abort,
866: HTTPStatus_put_character,
867: HTTPStatus_put_string,
868: HTTPStatus_put_block
869: };
870:
1.113 frystyk 871: PUBLIC HTStream * HTTPStatus_new (HTRequest * request,
872: void * param,
873: HTFormat input_format,
874: HTFormat output_format,
875: HTStream * output_stream)
1.71 frystyk 876: {
1.115 frystyk 877: HTStream * me;
878: if ((me = (HTStream *) HT_CALLOC(1, sizeof(HTStream))) == NULL)
879: HT_OUTOFMEM("HTTPStatus_new");
1.71 frystyk 880: me->isa = &HTTPStatusClass;
1.113 frystyk 881: if (request) {
1.126 frystyk 882: HTNet * net = HTRequest_net(request);
1.125 frystyk 883: /* Get existing copy */
884: http_info * http = (http_info *) HTNet_context(net);
1.113 frystyk 885: me->request = request;
886: me->http = http;
887: http->next = HTTP_ERROR;
888: me->state = EOL_BEGIN;
889: return me;
890: } else
891: return HTErrorStream();
1.71 frystyk 892: }
893:
894: /* ------------------------------------------------------------------------- */
895:
896: /* Load Document from HTTP Server HTLoadHTTP
1.55 frystyk 897: ** ==============================
898: **
899: ** Given a hypertext address, this routine loads a document.
900: **
901: ** On entry,
902: ** request This is the request structure
1.94 frystyk 903: ** returns HT_ERROR Error has occured in call back
904: ** HT_OK Call back was OK
1.55 frystyk 905: */
1.141 frystyk 906: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type);
907:
908: PUBLIC int HTLoadHTTP (SOCKET soc, HTRequest * request)
1.55 frystyk 909: {
910: http_info *http; /* Specific protocol information */
1.112 frystyk 911: HTParentAnchor *anchor = HTRequest_anchor(request);
1.141 frystyk 912: HTNet * net = HTRequest_net(request);
1.112 frystyk 913:
1.94 frystyk 914: /*
915: ** Initiate a new http structure and bind to request structure
916: ** This is actually state HTTP_BEGIN, but it can't be in the state
917: ** machine as we need the structure first.
918: */
1.141 frystyk 919: if (PROT_TRACE) HTTrace("HTTP........ Looking for `%s\'\n",
920: HTAnchor_physical(anchor));
921: if ((http = (http_info *) HT_CALLOC(1, sizeof(http_info))) == NULL)
922: HT_OUTOFMEM("HTLoadHTTP");
923: http->net = net;
1.157 frystyk 924: http->request = request;
1.141 frystyk 925: HTNet_setContext(net, http);
926: HTNet_setEventCallback(net, HTTPEvent);
927: HTNet_setEventParam(net, http); /* callbacks get http* */
928:
1.157 frystyk 929: return HTTPEvent(soc, http, HTEvent_BEGIN); /* get it started - ops is ignored */
930: }
931:
932: PRIVATE int FlushPutEvent (HTTimer * timer, void * param, HTEventType type)
933: {
934: http_info * http = (http_info *) param;
935: HTStream * input = HTRequest_inputStream(http->request);
936: HTPostCallback * pcbf = HTRequest_postCallback(http->request);
937:
1.165 frystyk 938: http->usedTimer = YES;
1.160 frystyk 939: if (timer != http->timer)
940: HTDebugBreak(__FILE__, __LINE__, "HTTP timer %p not in sync\n", timer);
1.157 frystyk 941: if (PROT_TRACE) HTTrace("Uploading... Flushing %p with timer %p\n", http, timer);
942:
943: /*
944: ** We ignore the return code here which we shouldn't!!!
945: */
946: if (http && input && pcbf) (*pcbf)(http->request, input);
947:
948: /*
1.165 frystyk 949: ** Delete the timer but remember that we have used it
1.157 frystyk 950: */
951: http->timer = NULL;
1.165 frystyk 952:
1.157 frystyk 953: return HT_OK;
1.141 frystyk 954: }
955:
956: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type)
957: {
958: http_info * http = (http_info *)pVoid;
959: int status = HT_ERROR;
960: HTNet * net = http->net;
961: HTRequest * request = HTNet_request(net);
1.144 frystyk 962: HTParentAnchor * anchor = HTRequest_anchor(request);
963: HTHost * host = HTNet_host(net);
1.141 frystyk 964:
965: /*
1.166 ! frystyk 966: ** Check whether we have been interrupted or timed out
1.141 frystyk 967: */
968: if (type == HTEvent_BEGIN) {
1.134 frystyk 969: http->next = HTTP_OK;
970: http->result = HT_ERROR;
1.141 frystyk 971: } else if (type == HTEvent_CLOSE) {
1.112 frystyk 972: HTRequest_addError(request, ERR_FATAL, NO, HTERR_INTERRUPTED,
973: NULL, 0, "HTLoadHTTP");
974: HTTPCleanup(request, HT_INTERRUPTED);
1.166 ! frystyk 975: return HT_OK;
! 976: } else if (type == HTEvent_TIMEOUT) {
! 977: HTRequest_addError(request, ERR_FATAL, NO, HTERR_TIME_OUT,
! 978: NULL, 0, "HTLoadHTTP");
! 979: HTTPCleanup(request, HT_TIMEOUT);
1.94 frystyk 980: return HT_OK;
1.141 frystyk 981: } else if (type == HTEvent_END) {
982: HTTPCleanup(request, http->result);
983: return HT_OK;
984: } else if (type == HTEvent_RESET) {
985: HTTPCleanup(request, HT_RECOVER_PIPE);
1.145 frystyk 986: http->state = HTTP_BEGIN;
1.141 frystyk 987: return HT_OK;
988: }
989:
1.71 frystyk 990: /* Now jump into the machine. We know the state from the previous run */
991: while (1) {
992: switch (http->state) {
1.134 frystyk 993: case HTTP_BEGIN:
1.144 frystyk 994: status = HTHost_connect(host, net, HTAnchor_physical(anchor), HTTP_PORT);
995: host = HTNet_host(net);
1.153 frystyk 996: if (status == HT_OK) {
1.140 frystyk 997:
1.123 frystyk 998: /*
1.140 frystyk 999: ** Check the protocol class to see if we have connected to a
1000: ** the right class of server, in this case HTTP. If we don't
1001: ** know the server then assume a HTTP/1.0
1.123 frystyk 1002: */
1003: {
1004: char * s_class = HTHost_class(host);
1.140 frystyk 1005: if (!s_class) {
1006: if (HTRequest_proxy(request) == NULL)
1007: HTRequest_addConnection(request, "Keep-Alive", "");
1008: HTHost_setClass(host, "http");
1009: } else if (strcasecomp(s_class, "http")) {
1.123 frystyk 1010: HTRequest_addError(request, ERR_FATAL, NO, HTERR_CLASS,
1011: NULL, 0, "HTLoadHTTP");
1012: http->state = HTTP_ERROR;
1013: break;
1014: }
1.95 frystyk 1015: }
1.147 frystyk 1016:
1.156 frystyk 1017: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
1.147 frystyk 1018: if (PROT_TRACE) HTTrace("HTTP........ Mode is HTTP/1.1 WITH NO PIPELINING\n");
1019: HTRequest_setFlush(request, YES);
1020: } else if (ConnectionMode & HTTP_FORCE_10) {
1021: if (PROT_TRACE) HTTrace("HTTP........ Mode is FORCE HTTP/1.0\n");
1022: HTHost_setVersion(host, HTTP_10);
1023: }
1024:
1.151 frystyk 1025: if (HTNet_preemptive(net)) {
1026: if (PROT_TRACE) HTTrace("HTTP........ Force flush on preemptive load\n");
1027: HTRequest_setFlush(request, YES);
1028: }
1029:
1.147 frystyk 1030: /* Jump to next state */
1.144 frystyk 1031: http->state = HTTP_NEED_STREAM;
1.159 frystyk 1032: } else if (status == HT_WOULD_BLOCK || status == HT_PENDING) {
1.144 frystyk 1033: return HT_OK;
1.159 frystyk 1034: } else
1.144 frystyk 1035: http->state = HTTP_ERROR; /* Error or interrupt */
1036: break;
1037:
1038: case HTTP_NEED_STREAM:
1.138 frystyk 1039:
1.144 frystyk 1040: /*
1041: ** Create the stream pipe FROM the channel to the application.
1042: ** The target for the input stream pipe is set up using the
1043: ** stream stack.
1044: */
1.153 frystyk 1045: {
1.144 frystyk 1046: HTStream *me=HTStreamStack(WWW_HTTP,
1047: HTRequest_outputFormat(request),
1048: HTRequest_outputStream(request),
1049: request, YES);
1050: HTNet_setReadStream(net, me);
1051: HTRequest_setOutputConnected(request, YES);
1052: }
1.127 frystyk 1053:
1.144 frystyk 1054: /*
1055: ** Create the stream pipe TO the channel from the application
1056: ** and hook it up to the request object
1057: */
1058: {
1059: HTChannel * channel = HTHost_channel(host);
1060: HTOutputStream * output = HTChannel_getChannelOStream(channel);
1061: int version = HTHost_version(host);
1062: HTStream * app = NULL;
1063:
1.139 frystyk 1064: #ifdef HTTP_DUMP
1.144 frystyk 1065: if (PROT_TRACE) {
1.162 frystyk 1066: if (!htfp) htfp = fopen(HTTP_OUTPUT, "ab");
1067: if (htfp) {
1.144 frystyk 1068: output = (HTOutputStream *)
1.162 frystyk 1069: HTTee((HTStream *) output, HTFWriter_new(request, htfp, YES), NULL);
1.147 frystyk 1070: HTTrace("HTTP........ Dumping request to `%s\'\n", HTTP_OUTPUT);
1.144 frystyk 1071: }
1072: }
1.139 frystyk 1073: #endif /* HTTP_DUMP */
1.144 frystyk 1074: app = HTMethod_hasEntity(HTRequest_method(request)) ?
1075: HTMIMERequest_new(request,
1076: HTTPRequest_new(request, (HTStream *) output, NO,
1077: version),
1078: YES) :
1079: HTTPRequest_new(request, (HTStream *) output, YES, version);
1080: HTRequest_setInputStream(request, app);
1081: }
1.88 frystyk 1082:
1.144 frystyk 1083: /*
1084: ** Set up concurrent read/write if this request isn't the
1085: ** source for a PUT or POST. As source we don't start reading
1086: ** before all destinations are ready. If destination then
1087: ** register the input stream and get ready for read
1088: */
1089: if (HTRequest_isDestination(request)) {
1090: HTHost_register(host, net, HTEvent_READ);
1091: HTRequest_linkDestination(request);
1092: }
1093: http->state = HTTP_CONNECTED;
1094: type = HTEvent_WRITE; /* fresh, so try a write */
1.71 frystyk 1095: break;
1096:
1.87 frystyk 1097: /* As we can do simultanous read and write this is now one state */
1.141 frystyk 1098: case HTTP_CONNECTED:
1099: if (type == HTEvent_WRITE) {
1.157 frystyk 1100: HTStream * input = HTRequest_inputStream(request);
1101: HTPostCallback * pcbf = HTRequest_postCallback(request);
1102: status = HTRequest_flush(request) ?
1103: HTHost_forceFlush(host) : (*input->isa->flush)(input);
1104:
1105: /*
1106: ** Check to see if we are uploading something or just a normal
1107: ** GET kind of thing.
1108: */
1109: if (pcbf) {
1110: if (http->lock == NO) {
1111: int retrys = HTRequest_retrys(request);
1112: ms_t delay = retrys > 3 ? 3000 : 2000;
1.165 frystyk 1113: if (!http->timer && !http->usedTimer) {
1.162 frystyk 1114: http->timer = HTTimer_new(NULL, FlushPutEvent,
1115: http, delay, YES, NO);
1.157 frystyk 1116: if (PROT_TRACE)
1.165 frystyk 1117: HTTrace("Uploading... Holding %p for %lu ms using time %p\n",
1118: http, delay, http->timer);
1.157 frystyk 1119: HTHost_register(host, net, HTEvent_READ);
1120: }
1121: http->lock = YES;
1122: }
1123: type = HTEvent_READ;
1124: } else {
1125:
1126: /*
1127: ** Check to see if we can start a new request
1128: ** pending in the host object.
1129: */
1130: HTHost_launchPending(host);
1131: type = HTEvent_READ;
1132: }
1133:
1134: /* Now check the status code */
1135: if (status == HT_WOULD_BLOCK)
1136: return HT_OK;
1137: else if (status == HT_PAUSE || status == HT_LOADED) {
1138: type = HTEvent_READ;
1139: } else if (status==HT_CLOSED)
1140: http->state = HTTP_RECOVER_PIPE;
1141: else if (status == HT_ERROR) {
1142: http->result = HT_INTERRUPTED;
1143: http->state = HTTP_ERROR;
1144: break;
1145: }
1146: } else if (type == HTEvent_FLUSH) {
1147: HTStream * input = HTRequest_inputStream(request);
1148: if (input == NULL)
1149: return HT_ERROR;
1150: return (*input->isa->flush)(input);
1151: } else if (type == HTEvent_READ) {
1152: status = HTHost_read(host, net);
1153: if (status == HT_WOULD_BLOCK)
1154: return HT_OK;
1155: else if (status == HT_CONTINUE) {
1156: if (PROT_TRACE) HTTrace("HTTP........ Continuing\n");
1157: http->lock = NO;
1158: continue;
1159: } else if (status==HT_LOADED)
1160: http->state = http->next; /* Jump to next state (OK or ERROR) */
1161: else if (status==HT_CLOSED)
1162: http->state = HTTP_RECOVER_PIPE;
1163: else
1164: http->state = HTTP_ERROR;
1165: } else {
1166: http->state = HTTP_ERROR; /* don't know how to handle OOB */
1167: }
1168: break;
1.141 frystyk 1169:
1.134 frystyk 1170: case HTTP_OK:
1.88 frystyk 1171: if (HTRequest_isPostWeb(request)) {
1.91 frystyk 1172: if (HTRequest_isDestination(request)) {
1.126 frystyk 1173: HTRequest * source = HTRequest_source(request);
1.91 frystyk 1174: HTLink *link =
1.127 frystyk 1175: HTLink_find((HTAnchor *)HTRequest_anchor(source),
1.112 frystyk 1176: (HTAnchor *) anchor);
1.109 frystyk 1177: HTLink_setResult(link, HT_LINK_OK);
1.91 frystyk 1178: }
1.112 frystyk 1179: }
1.134 frystyk 1180: HTTPCleanup(request, http->result);
1.94 frystyk 1181: return HT_OK;
1.71 frystyk 1182: break;
1.141 frystyk 1183:
1184: case HTTP_RECOVER_PIPE:
1185: {
1186: /*
1187: ** If this is a persistent connection and we get a close
1188: ** then it is an error and we should recover from it by
1189: ** restarting the pipe line of requests if any
1190: */
1.151 frystyk 1191: if (HTHost_isPersistent(host) && !HTHost_closeNotification(host)) {
1.143 frystyk 1192: if (host == NULL) return HT_ERROR;
1.144 frystyk 1193: HTRequest_setFlush(request, YES);
1194: HTHost_recoverPipe(host);
1.162 frystyk 1195: #if 0
1196: /* Is handled from within HTHost_recoverPipe */
1.144 frystyk 1197: http->state = HTTP_BEGIN;
1198: HTHost_launchPending(host);
1.162 frystyk 1199: #endif
1.144 frystyk 1200: return HT_OK;
1.141 frystyk 1201: } else
1202: http->state = HTTP_OK;
1203: }
1.143 frystyk 1204: break;
1.141 frystyk 1205:
1.71 frystyk 1206: case HTTP_ERROR:
1.143 frystyk 1207: if (HTRequest_isPostWeb(request)) {
1208: if (HTRequest_isDestination(request)) {
1209: HTRequest * source = HTRequest_source(request);
1210: HTLink *link =
1211: HTLink_find((HTAnchor *)HTRequest_anchor(source),
1212: (HTAnchor *) anchor);
1213: HTLink_setResult(link, HT_LINK_ERROR);
1214: }
1215: HTRequest_killPostWeb(request);
1216: }
1217: HTTPCleanup(request, http->result);
1218: return HT_OK;
1219: break;
1220:
1.141 frystyk 1221: default:
1.160 frystyk 1222: HTDebugBreak(__FILE__, __LINE__, "Bad http state %d\n", http->state);
1.71 frystyk 1223: }
1224: } /* End of while(1) */
1225: }
1.88 frystyk 1226:
1.147 frystyk 1227: PUBLIC void HTTP_setConnectionMode (HTTPConnectionMode mode)
1228: {
1229: ConnectionMode = mode;
1230: }
1231:
1232: PUBLIC HTTPConnectionMode HTTP_connectionMode (void)
1233: {
1234: return ConnectionMode;
1235: }
1.21 luotonen 1236:
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