Annotation of libwww/Library/src/HTTP.c, revision 1.178
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.
1.178 ! frystyk 6: ** @(#) $Id: HTTP.c,v 1.177 1999年02月07日 18:32:25 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"
1.177 frystyk 23: #include "HTHeader.h"
24: #include "HTMIMERq.h"
1.94 frystyk 25: #include "HTReqMan.h"
1.109 frystyk 26: #include "HTTPUtil.h"
1.80 frystyk 27: #include "HTTPReq.h"
1.55 frystyk 28: #include "HTTP.h" /* Implements */
29:
30: /* Macros and other defines */
1.94 frystyk 31: #ifndef HTTP_PORT
32: #define HTTP_PORT 80 /* Allocated to http by Jon Postel/ISI 24-Jan-92 */
33: #endif
34:
1.71 frystyk 35: #define PUTC(c) (*me->target->isa->put_character)(me->target, c)
36: #define PUTS(s) (*me->target->isa->put_string)(me->target, s)
37: #define PUTBLOCK(b, l) (*me->target->isa->put_block)(me->target, b, l)
38: #define FREE_TARGET (*me->target->isa->_free)(me->target)
1.74 frystyk 39: #define ABORT_TARGET (*me->target->isa->abort)(me->target, e)
1.2 timbl 40:
1.178 ! frystyk 41: #ifdef HTDEBUG
1.177 frystyk 42: #include "WWWStream.h"
1.147 frystyk 43: #define HTTP_OUTPUT "w3chttp.out"
1.162 frystyk 44: PRIVATE FILE * htfp = NULL;
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 {
1.167 frystyk 51: HTTP_KILL_PIPE = -4,
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:
1.169 frystyk 95: /* How long to wait before writing the body in PUT and POST requests */
96: #define DEFAULT_FIRST_WRITE_DELAY 2000
97: #define DEFAULT_SECOND_WRITE_DELAY 3000
98:
99: PRIVATE ms_t HTFirstWriteDelay = DEFAULT_FIRST_WRITE_DELAY;
100: PRIVATE ms_t HTSecondWriteDelay = DEFAULT_SECOND_WRITE_DELAY;
101:
1.147 frystyk 102: #ifdef HT_NO_PIPELINING
1.156 frystyk 103: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_NO_PIPELINING;
1.147 frystyk 104: #else
1.156 frystyk 105: #ifdef HT_MUX
106: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_MUX;
107: #else
108: #ifdef HT_FORCE_10
109: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_FORCE_10;
110: #else
111: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_PIPELINING;
112: #endif
113: #endif
1.147 frystyk 114: #endif
115:
1.71 frystyk 116: /* ------------------------------------------------------------------------- */
117: /* Help Functions */
118: /* ------------------------------------------------------------------------- */
1.21 luotonen 119:
1.94 frystyk 120: /* HTTPCleanup
121: ** -----------
1.55 frystyk 122: ** This function closes the connection and frees memory.
1.94 frystyk 123: ** Returns YES on OK, else NO
1.1 timbl 124: */
1.94 frystyk 125: PRIVATE int HTTPCleanup (HTRequest *req, int status)
1.1 timbl 126: {
1.126 frystyk 127: HTNet * net = HTRequest_net(req);
128: http_info * http = (http_info *) HTNet_context(net);
129: HTStream * input = HTRequest_inputStream(req);
1.80 frystyk 130:
1.178 ! frystyk 131: HTTRACE(PROT_TRACE, "HTTP Clean.. Called with status %d, net %p\n" _ status _ net);
1.144 frystyk 132:
1.164 frystyk 133: if (status == HT_INTERRUPTED) {
134: HTAlertCallback * cbf = HTAlert_find(HT_PROG_INTERRUPT);
135: if (cbf) (*cbf)(req, HT_PROG_INTERRUPT,
136: HT_MSG_NULL, NULL, NULL, NULL);
1.166 frystyk 137: } else if (status == HT_TIMEOUT) {
138: HTAlertCallback * cbf = HTAlert_find(HT_PROG_TIMEOUT);
139: if (cbf) (*cbf)(req, HT_PROG_TIMEOUT,
140: HT_MSG_NULL, NULL, NULL, NULL);
1.164 frystyk 141: }
1.166 frystyk 142:
1.94 frystyk 143: /* Free stream with data TO network */
1.167 frystyk 144: if (input) {
1.166 frystyk 145: if (status==HT_INTERRUPTED || status==HT_RECOVER_PIPE || status==HT_TIMEOUT)
1.126 frystyk 146: (*input->isa->abort)(input, NULL);
1.94 frystyk 147: else
1.126 frystyk 148: (*input->isa->_free)(input);
149: HTRequest_setInputStream(req, NULL);
1.94 frystyk 150: }
1.88 frystyk 151:
1.144 frystyk 152: /*
1.157 frystyk 153: ** Remove if we have registered an upload function as a callback
154: */
155: if (http->timer) {
156: HTTimer_delete(http->timer);
157: http->timer = NULL;
158: }
159:
160: /*
1.144 frystyk 161: ** Remove the request object and our own context structure for http.
162: */
163: if (status != HT_RECOVER_PIPE) {
1.153 frystyk 164: HTNet_delete(net, status);
1.141 frystyk 165: HT_FREE(http);
166: }
1.94 frystyk 167: return YES;
1.55 frystyk 168: }
169:
1.71 frystyk 170: /*
1.130 frystyk 171: ** Informational 1xx codes are handled separately
1.136 frystyk 172: ** Returns YES if we should continue, NO if we should stop
1.55 frystyk 173: */
1.130 frystyk 174: PRIVATE BOOL HTTPInformation (HTStream * me)
1.55 frystyk 175: {
1.136 frystyk 176: http_info * http = me->http;
1.71 frystyk 177: switch (me->status) {
178:
1.136 frystyk 179: case 100:
1.161 frystyk 180: #if 0
1.136 frystyk 181: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CONTINUE,
182: me->reason, (int) strlen(me->reason),
183: "HTTPInformation");
1.161 frystyk 184: #endif
1.136 frystyk 185: return YES;
186: break;
187:
1.130 frystyk 188: case 101:
1.136 frystyk 189: /*
190: ** We consider 101 Switching as a final state and exit this request
191: */
1.130 frystyk 192: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_SWITCHING,
1.127 frystyk 193: me->reason, (int) strlen(me->reason),
1.130 frystyk 194: "HTTPInformation");
1.136 frystyk 195: http->next = HTTP_OK;
196: http->result = HT_UPGRADE;
1.127 frystyk 197: break;
198:
1.130 frystyk 199: default:
1.136 frystyk 200: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
201: (void *) me->buffer, me->buflen, "HTTPNextState");
202: http->next = HTTP_ERROR;
203: http->result = HT_ERROR;
1.127 frystyk 204: break;
1.130 frystyk 205: }
1.136 frystyk 206: return NO;
1.130 frystyk 207: }
208:
1.158 frystyk 209:
210:
1.130 frystyk 211: /*
212: ** This is a big switch handling all HTTP return codes. It puts in any
213: ** appropiate error message and decides whether we should expect data
214: ** or not.
215: */
216: PRIVATE void HTTPNextState (HTStream * me)
217: {
1.134 frystyk 218: http_info * http = me->http;
1.158 frystyk 219: int error_class = me->status / 100;
220: switch (error_class) {
1.127 frystyk 221:
1.158 frystyk 222: case 0: /* 0.9 response */
223: case 2:
1.112 frystyk 224:
1.158 frystyk 225: switch (me->status) {
1.112 frystyk 226:
1.158 frystyk 227: case 201: /* Created */
228: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CREATED,
229: me->reason, (int) strlen(me->reason),
230: "HTTPNextState");
231: http->next = HTTP_OK;
232: http->result = HT_CREATED;
233: break;
234:
235: case 202: /* Accepted */
236: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_ACCEPTED,
237: me->reason, (int) strlen(me->reason),
238: "HTTPNextState");
239: http->next = HTTP_OK;
240: http->result = HT_ACCEPTED;
241: break;
242:
243: case 203: /* Non-authoritative information */
244: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NON_AUTHORITATIVE,
245: me->reason, (int) strlen(me->reason),
246: "HTTPNextState");
247: http->next = HTTP_OK;
248: http->result = HT_LOADED;
249: break;
250:
251: case 204: /* No Response */
252: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NO_CONTENT,
253: me->reason, (int) strlen(me->reason),
254: "HTTPNextState");
255: http->next = HTTP_OK;
256: http->result = HT_NO_DATA;
257: break;
258:
259: case 205: /* Reset Content */
260: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_RESET,
261: me->reason, (int) strlen(me->reason),
262: "HTTPNextState");
263: http->next = HTTP_OK;
264: http->result = HT_RESET_CONTENT;
265: break;
266:
267: case 206: /* Partial Content */
268: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL,
269: me->reason, (int) strlen(me->reason),
270: "HTTPNextState");
271: http->next = HTTP_OK;
272: http->result = HT_PARTIAL_CONTENT;
273: break;
274:
275: case 207: /* Partial Update OK */
276: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL_OK,
277: me->reason, (int) strlen(me->reason),
278: "HTTPNextState");
279: http->next = HTTP_OK;
280: http->result = HT_PARTIAL_CONTENT;
281: break;
282:
283: default:
284: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_OK,
285: me->reason, (int) strlen(me->reason),
286: "HTTPNextState");
287: http->next = HTTP_OK;
288: http->result = HT_LOADED;
289: break;
290: }
1.134 frystyk 291: break;
292:
1.158 frystyk 293: case 3:
1.134 frystyk 294:
1.158 frystyk 295: switch (me->status) {
1.78 frystyk 296:
1.158 frystyk 297: case 301: /* Moved */
298: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MOVED,
299: me->reason, (int) strlen(me->reason),
300: "HTTPNextState");
301: http->next = HTTP_ERROR;
302: http->result = HT_PERM_REDIRECT;
303: break;
304:
305: case 302: /* Found */
306: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_FOUND,
307: me->reason, (int) strlen(me->reason),
308: "HTTPNextState");
309: http->next = HTTP_ERROR;
310: http->result = HT_FOUND;
311: break;
1.55 frystyk 312:
1.158 frystyk 313: case 303: /* Method */
314: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_METHOD,
315: me->reason, (int) strlen(me->reason),
316: "HTTPNextState");
317: http->next = HTTP_ERROR;
318: http->result = HT_SEE_OTHER;
319: break;
320:
321: case 304: /* Not Modified */
322: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NOT_MODIFIED,
323: me->reason, (int) strlen(me->reason),
324: "HTTPNextState");
325: http->next = HTTP_OK;
326: http->result = HT_NOT_MODIFIED;
327: break;
1.134 frystyk 328:
1.158 frystyk 329: case 305: /* Use proxy */
330: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_USE_PROXY,
331: me->reason, (int) strlen(me->reason),
332: "HTTPNextState");
333: http->next = HTTP_ERROR;
334: http->result = HT_USE_PROXY;
335: break;
1.55 frystyk 336:
1.152 frystyk 337: #if 0
1.158 frystyk 338: case 306: /* Use proxy */
339: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PROXY_REDIRECT,
340: me->reason, (int) strlen(me->reason),
341: "HTTPNextState");
342: http->next = HTTP_ERROR;
343: http->result = HT_USE_PROXY;
344: break;
1.152 frystyk 345: #endif
346:
1.158 frystyk 347: case 307: /* Use proxy */
348: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_TEMP_REDIRECT,
349: me->reason, (int) strlen(me->reason),
350: "HTTPNextState");
351: http->next = HTTP_ERROR;
352: http->result = HT_TEMP_REDIRECT;
353: break;
354:
355: default:
356: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MULTIPLE,
357: me->reason, (int) strlen(me->reason),
358: "HTTPNextState");
359: http->next = HTTP_OK;
360: http->result = HT_LOADED;
361: break;
362: }
363: break;
364:
365: case 4:
366:
367: switch (me->status) {
368: case 401:
369: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNAUTHORIZED,
370: me->reason, (int) strlen(me->reason), "HTTPNextState");
371: http->next = HTTP_ERROR;
372: http->result = HT_NO_ACCESS;
373: break;
1.152 frystyk 374:
1.158 frystyk 375: case 402: /* Payment required */
376: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PAYMENT_REQUIRED,
377: me->reason, (int) strlen(me->reason), "HTTPNextState");
378: http->next = HTTP_ERROR;
379: http->result = -402;
380: break;
1.71 frystyk 381:
1.158 frystyk 382: case 403: /* Forbidden */
383: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_FORBIDDEN,
384: me->reason, (int) strlen(me->reason), "HTTPNextState");
385: http->next = HTTP_ERROR;
386: http->result = HT_FORBIDDEN;
387: break;
1.55 frystyk 388:
1.158 frystyk 389: case 404: /* Not Found */
390: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_FOUND,
391: me->reason, (int) strlen(me->reason), "HTTPNextState");
392: http->next = HTTP_ERROR;
393: http->result = -404;
394: break;
1.55 frystyk 395:
1.158 frystyk 396: case 405: /* Not Allowed */
397: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_ALLOWED,
398: me->reason, (int) strlen(me->reason), "HTTPNextState");
399: http->next = HTTP_ERROR;
400: http->result = -405;
401: break;
402:
403: case 406: /* None Acceptable */
404: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NONE_ACCEPTABLE,
405: me->reason, (int) strlen(me->reason), "HTTPNextState");
406: http->next = HTTP_ERROR;
407: http->result = HT_NOT_ACCEPTABLE;
408: break;
409:
410: case 407: /* Proxy Authentication Required */
411: HTRequest_addError(me->request, ERR_FATAL, NO,HTERR_PROXY_UNAUTHORIZED,
412: me->reason, (int) strlen(me->reason), "HTTPNextState");
413: http->next = HTTP_ERROR;
414: http->result = HT_NO_PROXY_ACCESS;
415: break;
416:
417: case 408: /* Request Timeout */
418: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TIMEOUT,
419: me->reason, (int) strlen(me->reason), "HTTPNextState");
420: http->next = HTTP_ERROR;
421: http->result = -408;
422: break;
423:
424: case 409: /* Conflict */
425: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_CONFLICT,
426: me->reason, (int) strlen(me->reason), "HTTPNextState");
427: http->next = HTTP_ERROR;
428: http->result = HT_CONFLICT;
429: break;
430:
431: case 410: /* Gone */
432: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GONE,
433: me->reason, (int) strlen(me->reason), "HTTPNextState");
434: http->next = HTTP_ERROR;
435: http->result = -410;
436: break;
437:
438: case 411: /* Length Required */
439: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_LENGTH_REQUIRED,
440: me->reason, (int) strlen(me->reason), "HTTPNextState");
441: http->next = HTTP_ERROR;
442: http->result = HT_LENGTH_REQUIRED;
443: break;
444:
445: case 412: /* Precondition failed */
446: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PRECON_FAILED,
447: me->reason, (int) strlen(me->reason), "HTTPNextState");
448: http->next = HTTP_ERROR;
449: http->result = -412;
450: break;
451:
452: case 413: /* Request entity too large */
453: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TOO_BIG,
454: me->reason, (int) strlen(me->reason), "HTTPNextState");
455: http->next = HTTP_ERROR;
456: http->result = -413;
457: break;
458:
459: case 414: /* Request-URI too long */
460: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_URI_TOO_BIG,
461: me->reason, (int) strlen(me->reason), "HTTPNextState");
462: http->next = HTTP_ERROR;
463: http->result = -414;
464: break;
465:
466: case 415: /* Unsupported */
467: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNSUPPORTED,
468: me->reason, (int) strlen(me->reason), "HTTPNextState");
469: http->next = HTTP_ERROR;
470: http->result = -415;
471: break;
472:
473: case 416: /* Request Range not satisfiable */
474: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_RANGE,
475: me->reason, (int) strlen(me->reason), "HTTPNextState");
476: http->next = HTTP_ERROR;
477: http->result = -416;
478: break;
479:
480: case 417: /* Expectation Failed */
481: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_EXPECTATION_FAILED,
482: me->reason, (int) strlen(me->reason), "HTTPNextState");
483: http->next = HTTP_ERROR;
484: http->result = -417;
485: break;
486:
487: case 418: /* Reauthentication required */
488: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_REAUTH,
489: me->reason, (int) strlen(me->reason), "HTTPNextState");
490: http->next = HTTP_ERROR;
491: http->result = -418;
492: break;
493:
494: case 419: /* Proxy Reauthentication required */
495: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PROXY_REAUTH,
496: me->reason, (int) strlen(me->reason), "HTTPNextState");
497: http->next = HTTP_ERROR;
498: http->result = -419;
499: break;
500:
501: default:
502: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REQUEST,
503: me->reason, (int) strlen(me->reason), "HTTPNextState");
504: http->next = HTTP_ERROR;
505: http->result = -400;
506: break;
507: }
1.134 frystyk 508: break;
509:
1.158 frystyk 510: case 5:
1.134 frystyk 511:
1.158 frystyk 512: switch (me->status) {
513: case 501:
514: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_IMPLEMENTED,
515: me->reason, (int) strlen(me->reason), "HTTPNextState");
516: http->next = HTTP_ERROR;
517: http->result = -501;
518: break;
519:
520: case 502:
521: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_GATE,
522: me->reason, (int) strlen(me->reason), "HTTPNextState");
523: http->next = HTTP_ERROR;
524: http->result = -502;
525: break;
526:
527: case 503:
528: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_DOWN,
529: me->reason, (int) strlen(me->reason), "HTTPNextState");
530: http->next = HTTP_ERROR;
531:
532: /*
533: ** If Retry-After header is found then return HT_RETRY else HT_ERROR.
534: ** The caller may want to reissue the request at a later point in time.
535: */
536: {
537: HTResponse * response = HTRequest_response(me->request);
538: if (HTResponse_retryTime(response))
539: http->result = HT_RETRY;
540: else
541: http->result = -500;
542: }
543: break;
544:
545: case 504:
546: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GATE_TIMEOUT,
547: me->reason, (int) strlen(me->reason), "HTTPNextState");
548: http->next = HTTP_ERROR;
549: http->result = -504;
550: break;
551:
552: case 505: /* Unsupported protocol version */
553: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_VERSION,
554: me->reason, (int) strlen(me->reason), "HTTPNextState");
555: http->next = HTTP_ERROR;
556: http->result = HT_BAD_VERSION;
557: break;
558:
559: case 506: /* Partial update Not Implemented */
560: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NO_PARTIAL_UPDATE,
561: me->reason, (int) strlen(me->reason), "HTTPNextState");
562: http->next = HTTP_ERROR;
563: http->result = HT_BAD_VERSION;
564: break;
565:
566: default: /* bad number */
567: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_INTERNAL,
568: me->reason, (int) strlen(me->reason), "HTTPNextState");
569: http->next = HTTP_ERROR;
570: http->result = -500;
571: break;
1.140 frystyk 572: }
1.78 frystyk 573: break;
574:
1.158 frystyk 575: default:
1.104 frystyk 576: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
1.158 frystyk 577: (void *) me->buffer, me->buflen, "HTTPNextState");
1.134 frystyk 578: http->next = HTTP_ERROR;
1.155 frystyk 579: http->result = -(me->status);
1.71 frystyk 580: break;
1.55 frystyk 581: }
582: }
583:
1.71 frystyk 584: /* ------------------------------------------------------------------------- */
585: /* HTTP Status Line Stream */
586: /* ------------------------------------------------------------------------- */
1.55 frystyk 587:
1.71 frystyk 588: /*
1.141 frystyk 589: ** Analyze the stream we have read. If it is a HTTP 1.0 or higher
1.71 frystyk 590: ** then create a MIME-stream, else create a Guess stream to find out
591: ** what the 0.9 server is sending. We need to copy the buffer as we don't
592: ** know if we can modify the contents or not.
1.78 frystyk 593: **
594: ** Stream handling is a function of the status code returned from the
595: ** server:
596: ** 200: Use `output_stream' in HTRequest structure
1.94 frystyk 597: ** else: Use `debug_stream' in HTRequest structure
1.80 frystyk 598: **
599: ** Return: YES if buffer should be written out. NO otherwise
1.56 frystyk 600: */
1.157 frystyk 601: PRIVATE int stream_pipe (HTStream * me, int length)
1.56 frystyk 602: {
1.136 frystyk 603: HTRequest * request = me->request;
604: HTNet * net = HTRequest_net(request);
1.123 frystyk 605: HTHost * host = HTNet_host(net);
1.141 frystyk 606:
1.153 frystyk 607: #if 0
608: {
609: char * uri = HTAnchor_address((HTAnchor *) HTRequest_anchor(request));
610: fprintf(stderr, "HTTP header: %s for '%s'\n", me->buffer, uri);
611: HT_FREE(uri);
612: }
613: #endif
614:
1.132 frystyk 615: /*
616: ** Just check for HTTP and not HTTP/ as NCSA server chokes on 1.1 replies
617: ** Thanks to Markku Savela <msa@msa.tte.vtt.fi>
1.141 frystyk 618:
1.132 frystyk 619: */
620: if (strncasecomp(me->buffer, "http", 4)) {
1.80 frystyk 621: int status;
1.136 frystyk 622: HTRequest_addError(request, ERR_INFO, NO, HTERR_HTTP09,
1.80 frystyk 623: (void *) me->buffer, me->buflen, "HTTPStatusStream");
1.136 frystyk 624: me->target = HTStreamStack(WWW_UNKNOWN,
625: HTRequest_outputFormat(request),
626: HTRequest_outputStream(request),
627: request, NO);
1.134 frystyk 628: me->http->next = HTTP_OK;
1.80 frystyk 629: if ((status = PUTBLOCK(me->buffer, me->buflen)) == HT_OK)
630: me->transparent = YES;
1.123 frystyk 631: HTHost_setVersion(host, HTTP_09);
1.157 frystyk 632: if (length > 0) HTHost_setConsumed(host, length);
1.178 ! frystyk 633: HTTRACE(PROT_TRACE, "HTTP Status. `%s\' is probably a broken 1.0 server that doesn't understand HEAD\n" _
1.171 frystyk 634: HTHost_name(host));
635: return HT_ERROR;
1.80 frystyk 636: } else {
1.140 frystyk 637: HTResponse * response = HTRequest_response(request);
1.155 frystyk 638: char * ptr = me->buffer+5; /* Skip the HTTP part */
639: char * vptr = NULL;
640: int major = 0;
641: int minor = 0;
642: me->version = vptr = HTNextField(&ptr);
643: if (vptr) {
644: major = (int) strtol(me->version, &vptr, 10);
645: if (vptr++) minor = strtol(vptr, NULL, 10);
646: }
1.95 frystyk 647:
1.130 frystyk 648: /* Here we want to find out when to use persistent connection */
1.171 frystyk 649: if (major > 1 && major < 100) {
1.178 ! frystyk 650: HTTRACE(PROT_TRACE, "HTTP Status. Major version number is %d\n" _ major);
1.155 frystyk 651: me->target = HTErrorStream();
1.158 frystyk 652: me->status = 9999;
1.155 frystyk 653: HTTPNextState(me); /* Get next state */
1.158 frystyk 654: return HT_ERROR;
1.155 frystyk 655: } else if (minor <= 0) {
1.171 frystyk 656: if (major > 100) {
1.178 ! frystyk 657: HTTRACE(PROT_TRACE, "HTTP Status. This is a *BROKEN* HTTP/1.0 server\n");
1.171 frystyk 658: me->status = 200;
659: } else {
1.178 ! frystyk 660: HTTRACE(PROT_TRACE, "HTTP Status. This is an HTTP/1.0 server\n");
1.171 frystyk 661: me->status = atoi(HTNextField(&ptr));
662: }
1.128 frystyk 663: HTHost_setVersion(host, HTTP_10);
1.155 frystyk 664: } else { /* 1.x, x>0 family */
665: HTHost_setVersion(host, HTTP_11); /* Best we can do */
1.156 frystyk 666: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
1.178 ! frystyk 667: HTTRACE(PROT_TRACE, "HTTP........ Mode is HTTP/1.1 with NO PIPELINING\n");
1.147 frystyk 668: HTNet_setPersistent(net, YES, HT_TP_SINGLE);
1.156 frystyk 669: } else if (ConnectionMode & HTTP_11_MUX) {
1.178 ! frystyk 670: HTTRACE(PROT_TRACE, "HTTP........ Mode is HTTP/1.1 with MUXING\n");
1.156 frystyk 671: HTNet_setPersistent(net, YES, HT_TP_INTERLEAVE);
1.147 frystyk 672: } else if (ConnectionMode & HTTP_FORCE_10) {
1.178 ! frystyk 673: HTTRACE(PROT_TRACE, "HTTP........ Mode is FORCE HTTP/1.0\n");
1.147 frystyk 674: HTHost_setVersion(host, HTTP_10);
675: HTNet_setPersistent(net, NO, HT_TP_SINGLE);
676: } else
677: HTNet_setPersistent(net, YES, HT_TP_PIPELINE);
1.171 frystyk 678: me->status = atoi(HTNextField(&ptr));
1.128 frystyk 679: }
1.95 frystyk 680:
1.81 frystyk 681: me->reason = ptr;
682: if ((ptr = strchr(me->reason, '\r')) != NULL) /* Strip \r and \n */
683: *ptr = '0円';
684: else if ((ptr = strchr(me->reason, '\n')) != NULL)
685: *ptr = '0円';
686:
1.130 frystyk 687: /*
688: ** If it is a 1xx code then find out what to do and return until we
689: ** get the next code. In the case of Upgrade we may not get back here
690: ** at all. If we are uploading an entity then continue doing that
691: */
692: if (me->status/100 == 1) {
1.136 frystyk 693: if (HTTPInformation(me) == YES) {
694: me->buflen = 0;
695: me->state = EOL_BEGIN;
1.157 frystyk 696: if (me->info_target) (*me->info_target->isa->_free)(me->info_target);
697: me->info_target = HTStreamStack(WWW_MIME_CONT,
698: HTRequest_debugFormat(request),
699: HTRequest_debugStream(request),
700: request, NO);
701: if (length > 0) HTHost_setConsumed(host, length);
702: return HT_OK;
1.103 frystyk 703: }
1.56 frystyk 704: }
1.133 frystyk 705:
706: /*
707: ** As we are getting fresh metainformation in the HTTP response,
708: ** we clear the old metainfomation in order not to mix it with the new
709: ** one. This is particularly important for the content-length and the
1.139 frystyk 710: ** like. The TRACE and OPTIONS method just adds to the current
711: ** metainformation so in that case we don't clear the anchor.
1.133 frystyk 712: */
1.136 frystyk 713: if (me->status==200 || me->status==203 || me->status==300) {
1.140 frystyk 714: /*
715: ** 200, 203 and 300 are all fully cacheable responses. No byte
716: ** ranges or anything else make life hard in this case.
717: */
1.148 frystyk 718: HTAnchor_clearHeader(HTRequest_anchor(request));
1.166 frystyk 719: HTResponse_setCachable(response, HT_CACHE_ALL);
1.136 frystyk 720: me->target = HTStreamStack(WWW_MIME,
721: HTRequest_outputFormat(request),
722: HTRequest_outputStream(request),
723: request, NO);
1.176 frystyk 724: } else if (me->status==204) {
725: HTResponse_setCachable(response, HT_CACHE_ALL);
726: me->target = HTStreamStack(WWW_MIME_HEAD,
727: HTRequest_debugFormat(request),
728: HTRequest_debugStream(request),
729: request, NO);
1.140 frystyk 730: } else if (me->status==206) {
731: /*
732: ** We got a partial response and now we must check whether
733: ** we issued a cache If-Range request or it was a new
734: ** partial response which we don't have in cache. In the latter
735: ** case, we don't cache the object and in the former we append
736: ** the result to the already existing cache entry.
737: */
738: HTReload reload = HTRequest_reloadMode(request);
739: if (reload == HT_CACHE_RANGE_VALIDATE) {
1.166 frystyk 740: HTResponse_setCachable(response, HT_CACHE_ALL);
1.140 frystyk 741: me->target = HTStreamStack(WWW_MIME_PART,
742: HTRequest_outputFormat(request),
743: HTRequest_outputStream(request),
744: request, NO);
745: } else {
1.149 frystyk 746: HTAnchor_clearHeader(HTRequest_anchor(request));
1.140 frystyk 747: me->target = HTStreamStack(WWW_MIME,
748: HTRequest_outputFormat(request),
749: HTRequest_outputStream(request),
750: request, NO);
751: }
1.176 frystyk 752: } else if (me->status==304) {
753: HTResponse_setCachable(response, HT_CACHE_NOT_MODIFIED);
1.136 frystyk 754: me->target = HTStreamStack(WWW_MIME_HEAD,
755: HTRequest_debugFormat(request),
756: HTRequest_debugStream(request),
757: request, NO);
758: } else if (HTRequest_debugStream(request)) {
1.175 frystyk 759: HTResponse_setCachable(response,
760: (me->status == 201) ? HT_CACHE_ETAG : HT_NO_CACHE);
1.136 frystyk 761: me->target = HTStreamStack(WWW_MIME,
762: HTRequest_debugFormat(request),
763: HTRequest_debugStream(request),
764: request, NO);
765: } else {
1.140 frystyk 766: /*
767: ** We still need to parse the MIME part in order to find any
768: ** valuable meta information which is needed from the response.
769: */
1.175 frystyk 770: HTResponse_setCachable(response,
771: (me->status == 201) ? HT_CACHE_ETAG : HT_NO_CACHE);
1.136 frystyk 772: me->target = HTStreamStack(WWW_MIME,
773: HTRequest_debugFormat(request),
774: HTRequest_debugStream(request),
775: request, NO);
1.133 frystyk 776: }
1.56 frystyk 777: }
1.113 frystyk 778: if (!me->target) me->target = HTErrorStream();
1.81 frystyk 779: HTTPNextState(me); /* Get next state */
1.80 frystyk 780: me->transparent = YES;
1.157 frystyk 781: if (length > 0) HTHost_setConsumed(HTNet_host(HTRequest_net(me->request)), length);
1.80 frystyk 782: return HT_OK;
1.71 frystyk 783: }
1.56 frystyk 784:
1.80 frystyk 785: /*
786: ** Searches for HTTP header line until buffer fills up or a CRLF or LF
787: ** is found
788: */
1.119 frystyk 789: PRIVATE int HTTPStatus_put_block (HTStream * me, const char * b, int l)
1.71 frystyk 790: {
1.150 frystyk 791: int status = HT_OK;
1.153 frystyk 792: int length = l;
1.146 frystyk 793: me->startLen = me->buflen;
1.80 frystyk 794: while (!me->transparent && l-- > 0) {
1.157 frystyk 795: if (me->info_target) {
796:
797: /* Put data down the 1xx return code parser until we are done. */
798: status = (*me->info_target->isa->put_block)(me->info_target, b, l+1);
799: if (status != HT_CONTINUE) return status;
800:
801: /* Now free the info stream */
802: (*me->info_target->isa->_free)(me->info_target);
803: me->info_target = NULL;
804:
805: /* Update where we are in the stream */
806: l = HTHost_remainingRead(HTNet_host(HTRequest_net(me->request)));
1.163 frystyk 807: b += (length-l);
1.159 frystyk 808: length = l;
1.163 frystyk 809: if (l <= 0) break;
1.157 frystyk 810:
1.80 frystyk 811: } else {
812: *(me->buffer+me->buflen++) = *b;
813: if (me->state == EOL_FCR) {
814: if (*b == LF) { /* Line found */
1.157 frystyk 815: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 816: } else {
817: me->state = EOL_BEGIN;
818: }
819: } else if (*b == CR) {
820: me->state = EOL_FCR;
821: } else if (*b == LF) {
1.157 frystyk 822: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.71 frystyk 823: } else {
1.80 frystyk 824: if (me->buflen >= MAX_STATUS_LEN) {
1.157 frystyk 825: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 826: }
1.71 frystyk 827: }
1.80 frystyk 828: b++;
1.71 frystyk 829: }
1.56 frystyk 830: }
1.153 frystyk 831:
1.159 frystyk 832: if (!me->transparent && length != l)
833: HTHost_setConsumed(HTNet_host(HTRequest_net(me->request)), length-l);
834:
1.99 frystyk 835: if (l > 0) return PUTBLOCK(b, l);
1.150 frystyk 836: return status;
1.56 frystyk 837: }
838:
1.119 frystyk 839: PRIVATE int HTTPStatus_put_string (HTStream * me, const char * s)
1.71 frystyk 840: {
1.80 frystyk 841: return HTTPStatus_put_block(me, s, (int) strlen(s));
1.71 frystyk 842: }
1.56 frystyk 843:
1.100 frystyk 844: PRIVATE int HTTPStatus_put_character (HTStream * me, char c)
1.71 frystyk 845: {
1.80 frystyk 846: return HTTPStatus_put_block(me, &c, 1);
847: }
848:
1.100 frystyk 849: PRIVATE int HTTPStatus_flush (HTStream * me)
1.80 frystyk 850: {
851: return (*me->target->isa->flush)(me->target);
1.71 frystyk 852: }
853:
1.100 frystyk 854: PRIVATE int HTTPStatus_free (HTStream * me)
1.71 frystyk 855: {
1.87 frystyk 856: int status = HT_OK;
857: if (me->target) {
858: if ((status = (*me->target->isa->_free)(me->target))==HT_WOULD_BLOCK)
859: return HT_WOULD_BLOCK;
860: }
1.115 frystyk 861: HT_FREE(me);
1.100 frystyk 862: return status;
1.71 frystyk 863: }
864:
1.104 frystyk 865: PRIVATE int HTTPStatus_abort (HTStream * me, HTList * e)
1.71 frystyk 866: {
867: if (me->target)
1.74 frystyk 868: ABORT_TARGET;
1.115 frystyk 869: HT_FREE(me);
1.178 ! frystyk 870: HTTRACE(PROT_TRACE, "HTTPStatus.. ABORTING...\n");
1.80 frystyk 871: return HT_ERROR;
1.71 frystyk 872: }
873:
874: /* HTTPStatus Stream
875: ** -----------------
876: */
1.119 frystyk 877: PRIVATE const HTStreamClass HTTPStatusClass =
1.71 frystyk 878: {
879: "HTTPStatus",
1.80 frystyk 880: HTTPStatus_flush,
1.71 frystyk 881: HTTPStatus_free,
882: HTTPStatus_abort,
883: HTTPStatus_put_character,
884: HTTPStatus_put_string,
885: HTTPStatus_put_block
886: };
887:
1.113 frystyk 888: PUBLIC HTStream * HTTPStatus_new (HTRequest * request,
889: void * param,
890: HTFormat input_format,
891: HTFormat output_format,
892: HTStream * output_stream)
1.71 frystyk 893: {
1.115 frystyk 894: HTStream * me;
895: if ((me = (HTStream *) HT_CALLOC(1, sizeof(HTStream))) == NULL)
896: HT_OUTOFMEM("HTTPStatus_new");
1.71 frystyk 897: me->isa = &HTTPStatusClass;
1.113 frystyk 898: if (request) {
1.126 frystyk 899: HTNet * net = HTRequest_net(request);
1.125 frystyk 900: /* Get existing copy */
901: http_info * http = (http_info *) HTNet_context(net);
1.113 frystyk 902: me->request = request;
903: me->http = http;
904: http->next = HTTP_ERROR;
905: me->state = EOL_BEGIN;
906: return me;
907: } else
908: return HTErrorStream();
1.71 frystyk 909: }
910:
911: /* ------------------------------------------------------------------------- */
912:
913: /* Load Document from HTTP Server HTLoadHTTP
1.55 frystyk 914: ** ==============================
915: **
916: ** Given a hypertext address, this routine loads a document.
917: **
918: ** On entry,
919: ** request This is the request structure
1.94 frystyk 920: ** returns HT_ERROR Error has occured in call back
921: ** HT_OK Call back was OK
1.55 frystyk 922: */
1.141 frystyk 923: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type);
924:
925: PUBLIC int HTLoadHTTP (SOCKET soc, HTRequest * request)
1.55 frystyk 926: {
927: http_info *http; /* Specific protocol information */
1.112 frystyk 928: HTParentAnchor *anchor = HTRequest_anchor(request);
1.141 frystyk 929: HTNet * net = HTRequest_net(request);
1.112 frystyk 930:
1.94 frystyk 931: /*
932: ** Initiate a new http structure and bind to request structure
933: ** This is actually state HTTP_BEGIN, but it can't be in the state
934: ** machine as we need the structure first.
935: */
1.178 ! frystyk 936: HTTRACE(PROT_TRACE, "HTTP........ Looking for `%s\'\n" _
1.141 frystyk 937: HTAnchor_physical(anchor));
938: if ((http = (http_info *) HT_CALLOC(1, sizeof(http_info))) == NULL)
939: HT_OUTOFMEM("HTLoadHTTP");
940: http->net = net;
1.157 frystyk 941: http->request = request;
1.141 frystyk 942: HTNet_setContext(net, http);
943: HTNet_setEventCallback(net, HTTPEvent);
944: HTNet_setEventParam(net, http); /* callbacks get http* */
945:
1.157 frystyk 946: return HTTPEvent(soc, http, HTEvent_BEGIN); /* get it started - ops is ignored */
947: }
948:
949: PRIVATE int FlushPutEvent (HTTimer * timer, void * param, HTEventType type)
950: {
951: http_info * http = (http_info *) param;
952: HTStream * input = HTRequest_inputStream(http->request);
953: HTPostCallback * pcbf = HTRequest_postCallback(http->request);
954:
1.165 frystyk 955: http->usedTimer = YES;
1.160 frystyk 956: if (timer != http->timer)
1.178 ! frystyk 957: HTDEBUGBREAK("HTTP timer %p not in sync\n" _ timer);
! 958: HTTRACE(PROT_TRACE, "Uploading... Flushing %p with timer %p\n" _ http _ timer);
1.157 frystyk 959:
960: /*
961: ** We ignore the return code here which we shouldn't!!!
962: */
963: if (http && input && pcbf) (*pcbf)(http->request, input);
964:
965: /*
1.172 frystyk 966: ** Delete the timer
1.157 frystyk 967: */
1.172 frystyk 968: HTTimer_delete(http->timer);
1.157 frystyk 969: http->timer = NULL;
1.165 frystyk 970:
1.157 frystyk 971: return HT_OK;
1.141 frystyk 972: }
973:
974: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type)
975: {
976: http_info * http = (http_info *)pVoid;
977: int status = HT_ERROR;
978: HTNet * net = http->net;
979: HTRequest * request = HTNet_request(net);
1.144 frystyk 980: HTParentAnchor * anchor = HTRequest_anchor(request);
981: HTHost * host = HTNet_host(net);
1.141 frystyk 982:
983: /*
1.166 frystyk 984: ** Check whether we have been interrupted or timed out
1.141 frystyk 985: */
986: if (type == HTEvent_BEGIN) {
1.134 frystyk 987: http->next = HTTP_OK;
988: http->result = HT_ERROR;
1.141 frystyk 989: } else if (type == HTEvent_CLOSE) {
1.112 frystyk 990: HTRequest_addError(request, ERR_FATAL, NO, HTERR_INTERRUPTED,
991: NULL, 0, "HTLoadHTTP");
992: HTTPCleanup(request, HT_INTERRUPTED);
1.166 frystyk 993: return HT_OK;
994: } else if (type == HTEvent_TIMEOUT) {
995: HTRequest_addError(request, ERR_FATAL, NO, HTERR_TIME_OUT,
996: NULL, 0, "HTLoadHTTP");
997: HTTPCleanup(request, HT_TIMEOUT);
1.94 frystyk 998: return HT_OK;
1.141 frystyk 999: } else if (type == HTEvent_END) {
1000: HTTPCleanup(request, http->result);
1001: return HT_OK;
1002: } else if (type == HTEvent_RESET) {
1003: HTTPCleanup(request, HT_RECOVER_PIPE);
1.145 frystyk 1004: http->state = HTTP_BEGIN;
1.141 frystyk 1005: return HT_OK;
1006: }
1007:
1.71 frystyk 1008: /* Now jump into the machine. We know the state from the previous run */
1009: while (1) {
1010: switch (http->state) {
1.134 frystyk 1011: case HTTP_BEGIN:
1.144 frystyk 1012: status = HTHost_connect(host, net, HTAnchor_physical(anchor), HTTP_PORT);
1013: host = HTNet_host(net);
1.153 frystyk 1014: if (status == HT_OK) {
1.140 frystyk 1015:
1.123 frystyk 1016: /*
1.140 frystyk 1017: ** Check the protocol class to see if we have connected to a
1018: ** the right class of server, in this case HTTP. If we don't
1019: ** know the server then assume a HTTP/1.0
1.123 frystyk 1020: */
1021: {
1022: char * s_class = HTHost_class(host);
1.140 frystyk 1023: if (!s_class) {
1.174 frystyk 1024: if (HTRequest_proxy(request) == NULL) {
1025: HTAssocList * alist = HTRequest_connection(request);
1026: if (!(alist && HTAssocList_findObject(alist, "close")))
1027: HTRequest_addConnection(request, "Keep-Alive", "");
1028: }
1.140 frystyk 1029: HTHost_setClass(host, "http");
1030: } else if (strcasecomp(s_class, "http")) {
1.123 frystyk 1031: HTRequest_addError(request, ERR_FATAL, NO, HTERR_CLASS,
1032: NULL, 0, "HTLoadHTTP");
1033: http->state = HTTP_ERROR;
1034: break;
1035: }
1.95 frystyk 1036: }
1.147 frystyk 1037:
1.156 frystyk 1038: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
1.178 ! frystyk 1039: HTTRACE(PROT_TRACE, "HTTP........ Mode is HTTP/1.1 WITH NO PIPELINING\n");
1.147 frystyk 1040: HTRequest_setFlush(request, YES);
1041: } else if (ConnectionMode & HTTP_FORCE_10) {
1.178 ! frystyk 1042: HTTRACE(PROT_TRACE, "HTTP........ Mode is FORCE HTTP/1.0\n");
1.147 frystyk 1043: HTHost_setVersion(host, HTTP_10);
1044: }
1045:
1.151 frystyk 1046: if (HTNet_preemptive(net)) {
1.178 ! frystyk 1047: HTTRACE(PROT_TRACE, "HTTP........ Force flush on preemptive load\n");
1.151 frystyk 1048: HTRequest_setFlush(request, YES);
1049: }
1050:
1.147 frystyk 1051: /* Jump to next state */
1.144 frystyk 1052: http->state = HTTP_NEED_STREAM;
1.159 frystyk 1053: } else if (status == HT_WOULD_BLOCK || status == HT_PENDING) {
1.144 frystyk 1054: return HT_OK;
1.171 frystyk 1055: } else if (status == HT_NO_HOST) {
1056: http->result = HT_NO_HOST;
1057: http->state = HTTP_ERROR;
1.159 frystyk 1058: } else
1.144 frystyk 1059: http->state = HTTP_ERROR; /* Error or interrupt */
1060: break;
1061:
1062: case HTTP_NEED_STREAM:
1.138 frystyk 1063:
1.144 frystyk 1064: /*
1065: ** Create the stream pipe FROM the channel to the application.
1066: ** The target for the input stream pipe is set up using the
1067: ** stream stack.
1068: */
1.167 frystyk 1069: {
1070: /*
1071: ** during a recovery, we might keep the same HTNet object.
1072: ** if so, reuse it's read stream
1073: */
1.176 frystyk 1074: HTStream * me = HTNet_readStream( net );
1.167 frystyk 1075: if ( me == NULL ) {
1.173 frystyk 1076: me = HTStreamStack(WWW_HTTP,
1077: HTRequest_outputFormat(request),
1078: HTRequest_outputStream(request),
1079: request, YES);
1.178 ! frystyk 1080: #ifdef HTDEBUG
1.173 frystyk 1081: if (PROT_TRACE) {
1082: if (!htfp) htfp = fopen(HTTP_OUTPUT, "ab");
1083: if (htfp) {
1084: me = HTTee(me, HTFWriter_new(request, htfp, YES), NULL);
1.178 ! frystyk 1085: HTTRACE(PROT_TRACE, "HTTP........ Dumping response to `%s\'\n" _ HTTP_OUTPUT);
1.173 frystyk 1086: }
1087: }
1.178 ! frystyk 1088: #endif /* HTDEBUG */
1.173 frystyk 1089:
1090: HTNet_setReadStream(net, me);
1.167 frystyk 1091: }
1092: HTRequest_setOutputConnected(request, YES);
1.144 frystyk 1093: }
1.127 frystyk 1094:
1.144 frystyk 1095: /*
1096: ** Create the stream pipe TO the channel from the application
1097: ** and hook it up to the request object
1098: */
1099: {
1100: HTChannel * channel = HTHost_channel(host);
1101: HTOutputStream * output = HTChannel_getChannelOStream(channel);
1102: int version = HTHost_version(host);
1103: HTStream * app = NULL;
1104:
1.178 ! frystyk 1105: #ifdef HTDEBUG
1.144 frystyk 1106: if (PROT_TRACE) {
1.162 frystyk 1107: if (!htfp) htfp = fopen(HTTP_OUTPUT, "ab");
1108: if (htfp) {
1.144 frystyk 1109: output = (HTOutputStream *)
1.162 frystyk 1110: HTTee((HTStream *) output, HTFWriter_new(request, htfp, YES), NULL);
1.178 ! frystyk 1111: HTTRACE(PROT_TRACE, "HTTP........ Dumping request to `%s\'\n" _ HTTP_OUTPUT);
1.144 frystyk 1112: }
1113: }
1.178 ! frystyk 1114: #endif /* HTDEBUG */
1.144 frystyk 1115: app = HTMethod_hasEntity(HTRequest_method(request)) ?
1116: HTMIMERequest_new(request,
1117: HTTPRequest_new(request, (HTStream *) output, NO,
1118: version),
1119: YES) :
1120: HTTPRequest_new(request, (HTStream *) output, YES, version);
1121: HTRequest_setInputStream(request, app);
1122: }
1.88 frystyk 1123:
1.144 frystyk 1124: /*
1125: ** Set up concurrent read/write if this request isn't the
1126: ** source for a PUT or POST. As source we don't start reading
1127: ** before all destinations are ready. If destination then
1128: ** register the input stream and get ready for read
1129: */
1130: if (HTRequest_isDestination(request)) {
1131: HTHost_register(host, net, HTEvent_READ);
1132: HTRequest_linkDestination(request);
1133: }
1134: http->state = HTTP_CONNECTED;
1135: type = HTEvent_WRITE; /* fresh, so try a write */
1.71 frystyk 1136: break;
1137:
1.87 frystyk 1138: /* As we can do simultanous read and write this is now one state */
1.141 frystyk 1139: case HTTP_CONNECTED:
1140: if (type == HTEvent_WRITE) {
1.157 frystyk 1141: HTStream * input = HTRequest_inputStream(request);
1142: HTPostCallback * pcbf = HTRequest_postCallback(request);
1143: status = HTRequest_flush(request) ?
1144: HTHost_forceFlush(host) : (*input->isa->flush)(input);
1145:
1146: /*
1147: ** Check to see if we are uploading something or just a normal
1148: ** GET kind of thing.
1149: */
1150: if (pcbf) {
1151: if (http->lock == NO) {
1152: int retrys = HTRequest_retrys(request);
1.169 frystyk 1153: ms_t delay = retrys > 3 ? HTSecondWriteDelay : HTFirstWriteDelay;
1.165 frystyk 1154: if (!http->timer && !http->usedTimer) {
1.162 frystyk 1155: http->timer = HTTimer_new(NULL, FlushPutEvent,
1156: http, delay, YES, NO);
1.178 ! frystyk 1157: HTTRACE(PROT_TRACE, "Uploading... Holding %p for %lu ms using time %p\n" _
! 1158: http _ delay _ http->timer);
1.157 frystyk 1159: HTHost_register(host, net, HTEvent_READ);
1160: }
1161: http->lock = YES;
1162: }
1163: type = HTEvent_READ;
1164: } else {
1165:
1166: /*
1167: ** Check to see if we can start a new request
1168: ** pending in the host object.
1169: */
1170: HTHost_launchPending(host);
1171: type = HTEvent_READ;
1172: }
1173:
1174: /* Now check the status code */
1175: if (status == HT_WOULD_BLOCK)
1176: return HT_OK;
1177: else if (status == HT_PAUSE || status == HT_LOADED) {
1178: type = HTEvent_READ;
1.168 frystyk 1179: } else if (status==HT_ERROR)
1.157 frystyk 1180: http->state = HTTP_RECOVER_PIPE;
1181: } else if (type == HTEvent_FLUSH) {
1182: HTStream * input = HTRequest_inputStream(request);
1183: if (input == NULL)
1184: return HT_ERROR;
1185: return (*input->isa->flush)(input);
1186: } else if (type == HTEvent_READ) {
1187: status = HTHost_read(host, net);
1188: if (status == HT_WOULD_BLOCK)
1189: return HT_OK;
1190: else if (status == HT_CONTINUE) {
1.178 ! frystyk 1191: HTTRACE(PROT_TRACE, "HTTP........ Continuing\n");
1.157 frystyk 1192: http->lock = NO;
1193: continue;
1194: } else if (status==HT_LOADED)
1195: http->state = http->next; /* Jump to next state (OK or ERROR) */
1196: else if (status==HT_CLOSED)
1197: http->state = HTTP_RECOVER_PIPE;
1.167 frystyk 1198: else if (status == HT_ERROR)
1199: http->state = HTTP_KILL_PIPE;
1.157 frystyk 1200: else
1201: http->state = HTTP_ERROR;
1202: } else {
1203: http->state = HTTP_ERROR; /* don't know how to handle OOB */
1204: }
1205: break;
1.141 frystyk 1206:
1.134 frystyk 1207: case HTTP_OK:
1208: HTTPCleanup(request, http->result);
1.94 frystyk 1209: return HT_OK;
1.71 frystyk 1210: break;
1.141 frystyk 1211:
1212: case HTTP_RECOVER_PIPE:
1213: {
1214: /*
1215: ** If this is a persistent connection and we get a close
1216: ** then it is an error and we should recover from it by
1217: ** restarting the pipe line of requests if any
1218: */
1.151 frystyk 1219: if (HTHost_isPersistent(host) && !HTHost_closeNotification(host)) {
1.143 frystyk 1220: if (host == NULL) return HT_ERROR;
1.144 frystyk 1221: HTRequest_setFlush(request, YES);
1222: HTHost_recoverPipe(host);
1223: return HT_OK;
1.141 frystyk 1224: } else
1225: http->state = HTTP_OK;
1226: }
1.143 frystyk 1227: break;
1.141 frystyk 1228:
1.167 frystyk 1229: case HTTP_KILL_PIPE:
1230: if (host == NULL) return HT_ERROR;
1231: HTHost_killPipe(host);
1232: return HT_OK;
1233: break;
1234:
1.71 frystyk 1235: case HTTP_ERROR:
1.143 frystyk 1236: HTTPCleanup(request, http->result);
1237: return HT_OK;
1238: break;
1239:
1.141 frystyk 1240: default:
1.178 ! frystyk 1241: HTDEBUGBREAK("Bad http state %d\n" _ http->state);
1.71 frystyk 1242: }
1243: } /* End of while(1) */
1244: }
1.88 frystyk 1245:
1.147 frystyk 1246: PUBLIC void HTTP_setConnectionMode (HTTPConnectionMode mode)
1247: {
1248: ConnectionMode = mode;
1249: }
1250:
1251: PUBLIC HTTPConnectionMode HTTP_connectionMode (void)
1252: {
1253: return ConnectionMode;
1254: }
1.21 luotonen 1255:
1.169 frystyk 1256: PUBLIC BOOL HTTP_setBodyWriteDelay (ms_t first_try, ms_t second_try)
1257: {
1258: if (first_try > 20 && second_try >= first_try) {
1259: HTFirstWriteDelay = first_try;
1260: HTSecondWriteDelay = second_try;
1261: return YES;
1262: }
1263: return NO;
1264: }
1265:
1266: PUBLIC void HTTP_bodyWriteDelay (ms_t * first_try, ms_t * second_try)
1267: {
1268: *first_try = HTFirstWriteDelay;
1269: *second_try = HTSecondWriteDelay;
1.170 frystyk 1270: }
1271:
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