Annotation of libwww/Library/src/HTTP.c, revision 1.158
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.
1.158 ! frystyk 6: ** @(#) $Id: HTTP.c,v 1.157 1998年02月27日 18:35:56 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 */
1.119 frystyk 20: #include "sysdep.h"
1.123 frystyk 21: #include "WWWUtil.h"
22: #include "WWWCore.h"
23: #include "WWWMIME.h"
24: #include "WWWStream.h"
1.125 frystyk 25: #include "WWWTrans.h"
1.94 frystyk 26: #include "HTReqMan.h"
1.109 frystyk 27: #include "HTTPUtil.h"
1.80 frystyk 28: #include "HTTPReq.h"
1.55 frystyk 29: #include "HTTP.h" /* Implements */
30:
31: /* Macros and other defines */
1.94 frystyk 32: #ifndef HTTP_PORT
33: #define HTTP_PORT 80 /* Allocated to http by Jon Postel/ISI 24-Jan-92 */
34: #endif
35:
1.71 frystyk 36: #define PUTC(c) (*me->target->isa->put_character)(me->target, c)
37: #define PUTS(s) (*me->target->isa->put_string)(me->target, s)
38: #define PUTBLOCK(b, l) (*me->target->isa->put_block)(me->target, b, l)
39: #define FREE_TARGET (*me->target->isa->_free)(me->target)
1.74 frystyk 40: #define ABORT_TARGET (*me->target->isa->abort)(me->target, e)
1.2 timbl 41:
1.140 frystyk 42: #define HTTP_DUMP
43: #ifdef HTTP_DUMP
1.147 frystyk 44: #define HTTP_OUTPUT "w3chttp.out"
1.140 frystyk 45: #endif
1.139 frystyk 46:
1.59 frystyk 47: /* Type definitions and global variables etc. local to this module */
1.94 frystyk 48:
49: /* Final states have negative value */
1.59 frystyk 50: typedef enum _HTTPState {
1.141 frystyk 51: HTTP_RECOVER_PIPE = -3,
1.134 frystyk 52: HTTP_ERROR = -2,
53: HTTP_OK = -1,
1.71 frystyk 54: HTTP_BEGIN = 0,
1.144 frystyk 55: HTTP_NEED_STREAM,
1.141 frystyk 56: HTTP_CONNECTED
1.59 frystyk 57: } HTTPState;
1.55 frystyk 58:
1.94 frystyk 59: /* This is the context structure for the this module */
1.55 frystyk 60: typedef struct _http_info {
1.81 frystyk 61: HTTPState state; /* Current State of the connection */
62: HTTPState next; /* Next state */
1.134 frystyk 63: int result; /* Result to report to the after filter */
1.139 frystyk 64: BOOL lock; /* Block for writing */
1.141 frystyk 65: HTNet * net;
1.157 frystyk 66: HTRequest * request;
67: HTTimer * timer;
1.55 frystyk 68: } http_info;
69:
1.88 frystyk 70: #define MAX_STATUS_LEN 100 /* Max nb of chars to check StatusLine */
1.55 frystyk 71:
1.71 frystyk 72: struct _HTStream {
1.119 frystyk 73: const HTStreamClass * isa;
1.71 frystyk 74: HTStream * target;
1.157 frystyk 75: HTStream * info_target; /* For 100 codes */
1.71 frystyk 76: HTRequest * request;
77: http_info * http;
1.121 frystyk 78: HTEOLState state;
1.71 frystyk 79: BOOL transparent;
1.150 frystyk 80: BOOL cont;
1.81 frystyk 81: char * version; /* Should we save this? */
1.71 frystyk 82: int status;
1.81 frystyk 83: char * reason;
1.71 frystyk 84: char buffer[MAX_STATUS_LEN+1];
1.80 frystyk 85: int buflen;
1.146 frystyk 86: int startLen;/* buflen when put_block was called */
1.71 frystyk 87: };
1.21 luotonen 88:
1.123 frystyk 89: struct _HTInputStream {
90: const HTInputStreamClass * isa;
91: };
92:
1.147 frystyk 93: #ifdef HT_NO_PIPELINING
1.156 frystyk 94: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_NO_PIPELINING;
1.147 frystyk 95: #else
1.156 frystyk 96: #ifdef HT_MUX
97: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_MUX;
98: #else
99: #ifdef HT_FORCE_10
100: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_FORCE_10;
101: #else
102: PRIVATE HTTPConnectionMode ConnectionMode = HTTP_11_PIPELINING;
103: #endif
104: #endif
1.147 frystyk 105: #endif
106:
1.71 frystyk 107: /* ------------------------------------------------------------------------- */
108: /* Help Functions */
109: /* ------------------------------------------------------------------------- */
1.21 luotonen 110:
1.94 frystyk 111: /* HTTPCleanup
112: ** -----------
1.55 frystyk 113: ** This function closes the connection and frees memory.
1.94 frystyk 114: ** Returns YES on OK, else NO
1.1 timbl 115: */
1.94 frystyk 116: PRIVATE int HTTPCleanup (HTRequest *req, int status)
1.1 timbl 117: {
1.126 frystyk 118: HTNet * net = HTRequest_net(req);
119: http_info * http = (http_info *) HTNet_context(net);
120: HTStream * input = HTRequest_inputStream(req);
1.80 frystyk 121:
1.144 frystyk 122: if (PROT_TRACE)
123: HTTrace("HTTP Clean.. Called with status %d, net %p\n", status, net);
124:
1.94 frystyk 125: /* Free stream with data TO network */
1.112 frystyk 126: if (HTRequest_isDestination(req))
127: HTRequest_removeDestination(req);
1.126 frystyk 128: else if (input) {
1.145 frystyk 129: if (status == HT_INTERRUPTED || status == HT_RECOVER_PIPE)
1.126 frystyk 130: (*input->isa->abort)(input, NULL);
1.94 frystyk 131: else
1.126 frystyk 132: (*input->isa->_free)(input);
133: HTRequest_setInputStream(req, NULL);
1.94 frystyk 134: }
1.88 frystyk 135:
1.144 frystyk 136: /*
1.157 frystyk 137: ** Remove if we have registered an upload function as a callback
138: */
139: if (http->timer) {
140: HTTimer_delete(http->timer);
141: http->timer = NULL;
142: }
143:
144: /*
1.144 frystyk 145: ** Remove the request object and our own context structure for http.
146: */
147: if (status != HT_RECOVER_PIPE) {
1.153 frystyk 148: HTNet_delete(net, status);
1.141 frystyk 149: HT_FREE(http);
150: }
1.94 frystyk 151: return YES;
1.55 frystyk 152: }
153:
1.71 frystyk 154: /*
1.130 frystyk 155: ** Informational 1xx codes are handled separately
1.136 frystyk 156: ** Returns YES if we should continue, NO if we should stop
1.55 frystyk 157: */
1.130 frystyk 158: PRIVATE BOOL HTTPInformation (HTStream * me)
1.55 frystyk 159: {
1.136 frystyk 160: http_info * http = me->http;
1.71 frystyk 161: switch (me->status) {
162:
1.136 frystyk 163: case 100:
164: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CONTINUE,
165: me->reason, (int) strlen(me->reason),
166: "HTTPInformation");
167: return YES;
168: break;
169:
1.130 frystyk 170: case 101:
1.136 frystyk 171: /*
172: ** We consider 101 Switching as a final state and exit this request
173: */
1.130 frystyk 174: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_SWITCHING,
1.127 frystyk 175: me->reason, (int) strlen(me->reason),
1.130 frystyk 176: "HTTPInformation");
1.136 frystyk 177: http->next = HTTP_OK;
178: http->result = HT_UPGRADE;
1.127 frystyk 179: break;
180:
1.130 frystyk 181: default:
1.136 frystyk 182: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
183: (void *) me->buffer, me->buflen, "HTTPNextState");
184: http->next = HTTP_ERROR;
185: http->result = HT_ERROR;
1.127 frystyk 186: break;
1.130 frystyk 187: }
1.136 frystyk 188: return NO;
1.130 frystyk 189: }
190:
1.158 ! frystyk 191:
! 192:
1.130 frystyk 193: /*
194: ** This is a big switch handling all HTTP return codes. It puts in any
195: ** appropiate error message and decides whether we should expect data
196: ** or not.
197: */
198: PRIVATE void HTTPNextState (HTStream * me)
199: {
1.134 frystyk 200: http_info * http = me->http;
1.158 ! frystyk 201: int error_class = me->status / 100;
! 202: switch (error_class) {
1.127 frystyk 203:
1.158 ! frystyk 204: case 0: /* 0.9 response */
! 205: case 2:
1.112 frystyk 206:
1.158 ! frystyk 207: switch (me->status) {
1.112 frystyk 208:
1.158 ! frystyk 209: case 201: /* Created */
! 210: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_CREATED,
! 211: me->reason, (int) strlen(me->reason),
! 212: "HTTPNextState");
! 213: http->next = HTTP_OK;
! 214: http->result = HT_CREATED;
! 215: break;
! 216:
! 217: case 202: /* Accepted */
! 218: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_ACCEPTED,
! 219: me->reason, (int) strlen(me->reason),
! 220: "HTTPNextState");
! 221: http->next = HTTP_OK;
! 222: http->result = HT_ACCEPTED;
! 223: break;
! 224:
! 225: case 203: /* Non-authoritative information */
! 226: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NON_AUTHORITATIVE,
! 227: me->reason, (int) strlen(me->reason),
! 228: "HTTPNextState");
! 229: http->next = HTTP_OK;
! 230: http->result = HT_LOADED;
! 231: break;
! 232:
! 233: case 204: /* No Response */
! 234: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NO_CONTENT,
! 235: me->reason, (int) strlen(me->reason),
! 236: "HTTPNextState");
! 237: http->next = HTTP_OK;
! 238: http->result = HT_NO_DATA;
! 239: break;
! 240:
! 241: case 205: /* Reset Content */
! 242: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_RESET,
! 243: me->reason, (int) strlen(me->reason),
! 244: "HTTPNextState");
! 245: http->next = HTTP_OK;
! 246: http->result = HT_RESET_CONTENT;
! 247: break;
! 248:
! 249: case 206: /* Partial Content */
! 250: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL,
! 251: me->reason, (int) strlen(me->reason),
! 252: "HTTPNextState");
! 253: http->next = HTTP_OK;
! 254: http->result = HT_PARTIAL_CONTENT;
! 255: break;
! 256:
! 257: case 207: /* Partial Update OK */
! 258: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PARTIAL_OK,
! 259: me->reason, (int) strlen(me->reason),
! 260: "HTTPNextState");
! 261: http->next = HTTP_OK;
! 262: http->result = HT_PARTIAL_CONTENT;
! 263: break;
! 264:
! 265: default:
! 266: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_OK,
! 267: me->reason, (int) strlen(me->reason),
! 268: "HTTPNextState");
! 269: http->next = HTTP_OK;
! 270: http->result = HT_LOADED;
! 271: break;
! 272: }
1.134 frystyk 273: break;
274:
1.158 ! frystyk 275: case 3:
1.134 frystyk 276:
1.158 ! frystyk 277: switch (me->status) {
1.78 frystyk 278:
1.158 ! frystyk 279: case 301: /* Moved */
! 280: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MOVED,
! 281: me->reason, (int) strlen(me->reason),
! 282: "HTTPNextState");
! 283: http->next = HTTP_ERROR;
! 284: http->result = HT_PERM_REDIRECT;
! 285: break;
! 286:
! 287: case 302: /* Found */
! 288: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_FOUND,
! 289: me->reason, (int) strlen(me->reason),
! 290: "HTTPNextState");
! 291: http->next = HTTP_ERROR;
! 292: http->result = HT_FOUND;
! 293: break;
1.55 frystyk 294:
1.158 ! frystyk 295: case 303: /* Method */
! 296: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_METHOD,
! 297: me->reason, (int) strlen(me->reason),
! 298: "HTTPNextState");
! 299: http->next = HTTP_ERROR;
! 300: http->result = HT_SEE_OTHER;
! 301: break;
! 302:
! 303: case 304: /* Not Modified */
! 304: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_NOT_MODIFIED,
! 305: me->reason, (int) strlen(me->reason),
! 306: "HTTPNextState");
! 307: http->next = HTTP_OK;
! 308: http->result = HT_NOT_MODIFIED;
! 309: break;
1.134 frystyk 310:
1.158 ! frystyk 311: case 305: /* Use proxy */
! 312: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_USE_PROXY,
! 313: me->reason, (int) strlen(me->reason),
! 314: "HTTPNextState");
! 315: http->next = HTTP_ERROR;
! 316: http->result = HT_USE_PROXY;
! 317: break;
1.55 frystyk 318:
1.152 frystyk 319: #if 0
1.158 ! frystyk 320: case 306: /* Use proxy */
! 321: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_PROXY_REDIRECT,
! 322: me->reason, (int) strlen(me->reason),
! 323: "HTTPNextState");
! 324: http->next = HTTP_ERROR;
! 325: http->result = HT_USE_PROXY;
! 326: break;
1.152 frystyk 327: #endif
328:
1.158 ! frystyk 329: case 307: /* Use proxy */
! 330: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_TEMP_REDIRECT,
! 331: me->reason, (int) strlen(me->reason),
! 332: "HTTPNextState");
! 333: http->next = HTTP_ERROR;
! 334: http->result = HT_TEMP_REDIRECT;
! 335: break;
! 336:
! 337: default:
! 338: HTRequest_addError(me->request, ERR_INFO, NO, HTERR_MULTIPLE,
! 339: me->reason, (int) strlen(me->reason),
! 340: "HTTPNextState");
! 341: http->next = HTTP_OK;
! 342: http->result = HT_LOADED;
! 343: break;
! 344: }
! 345: break;
! 346:
! 347: case 4:
! 348:
! 349: switch (me->status) {
! 350: case 401:
! 351: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNAUTHORIZED,
! 352: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 353: http->next = HTTP_ERROR;
! 354: http->result = HT_NO_ACCESS;
! 355: break;
1.152 frystyk 356:
1.158 ! frystyk 357: case 402: /* Payment required */
! 358: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PAYMENT_REQUIRED,
! 359: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 360: http->next = HTTP_ERROR;
! 361: http->result = -402;
! 362: break;
1.71 frystyk 363:
1.158 ! frystyk 364: case 403: /* Forbidden */
! 365: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_FORBIDDEN,
! 366: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 367: http->next = HTTP_ERROR;
! 368: http->result = HT_FORBIDDEN;
! 369: break;
1.55 frystyk 370:
1.158 ! frystyk 371: case 404: /* Not Found */
! 372: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_FOUND,
! 373: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 374: http->next = HTTP_ERROR;
! 375: http->result = -404;
! 376: break;
1.55 frystyk 377:
1.158 ! frystyk 378: case 405: /* Not Allowed */
! 379: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_ALLOWED,
! 380: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 381: http->next = HTTP_ERROR;
! 382: http->result = -405;
! 383: break;
! 384:
! 385: case 406: /* None Acceptable */
! 386: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NONE_ACCEPTABLE,
! 387: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 388: http->next = HTTP_ERROR;
! 389: http->result = HT_NOT_ACCEPTABLE;
! 390: break;
! 391:
! 392: case 407: /* Proxy Authentication Required */
! 393: HTRequest_addError(me->request, ERR_FATAL, NO,HTERR_PROXY_UNAUTHORIZED,
! 394: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 395: http->next = HTTP_ERROR;
! 396: http->result = HT_NO_PROXY_ACCESS;
! 397: break;
! 398:
! 399: case 408: /* Request Timeout */
! 400: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TIMEOUT,
! 401: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 402: http->next = HTTP_ERROR;
! 403: http->result = -408;
! 404: break;
! 405:
! 406: case 409: /* Conflict */
! 407: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_CONFLICT,
! 408: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 409: http->next = HTTP_ERROR;
! 410: http->result = HT_CONFLICT;
! 411: break;
! 412:
! 413: case 410: /* Gone */
! 414: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GONE,
! 415: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 416: http->next = HTTP_ERROR;
! 417: http->result = -410;
! 418: break;
! 419:
! 420: case 411: /* Length Required */
! 421: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_LENGTH_REQUIRED,
! 422: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 423: http->next = HTTP_ERROR;
! 424: http->result = HT_LENGTH_REQUIRED;
! 425: break;
! 426:
! 427: case 412: /* Precondition failed */
! 428: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PRECON_FAILED,
! 429: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 430: http->next = HTTP_ERROR;
! 431: http->result = -412;
! 432: break;
! 433:
! 434: case 413: /* Request entity too large */
! 435: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_TOO_BIG,
! 436: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 437: http->next = HTTP_ERROR;
! 438: http->result = -413;
! 439: break;
! 440:
! 441: case 414: /* Request-URI too long */
! 442: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_URI_TOO_BIG,
! 443: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 444: http->next = HTTP_ERROR;
! 445: http->result = -414;
! 446: break;
! 447:
! 448: case 415: /* Unsupported */
! 449: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_UNSUPPORTED,
! 450: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 451: http->next = HTTP_ERROR;
! 452: http->result = -415;
! 453: break;
! 454:
! 455: case 416: /* Request Range not satisfiable */
! 456: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_RANGE,
! 457: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 458: http->next = HTTP_ERROR;
! 459: http->result = -416;
! 460: break;
! 461:
! 462: case 417: /* Expectation Failed */
! 463: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_EXPECTATION_FAILED,
! 464: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 465: http->next = HTTP_ERROR;
! 466: http->result = -417;
! 467: break;
! 468:
! 469: case 418: /* Reauthentication required */
! 470: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_REAUTH,
! 471: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 472: http->next = HTTP_ERROR;
! 473: http->result = -418;
! 474: break;
! 475:
! 476: case 419: /* Proxy Reauthentication required */
! 477: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_PROXY_REAUTH,
! 478: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 479: http->next = HTTP_ERROR;
! 480: http->result = -419;
! 481: break;
! 482:
! 483: default:
! 484: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REQUEST,
! 485: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 486: http->next = HTTP_ERROR;
! 487: http->result = -400;
! 488: break;
! 489: }
1.134 frystyk 490: break;
491:
1.158 ! frystyk 492: case 5:
1.134 frystyk 493:
1.158 ! frystyk 494: switch (me->status) {
! 495: case 501:
! 496: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_IMPLEMENTED,
! 497: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 498: http->next = HTTP_ERROR;
! 499: http->result = -501;
! 500: break;
! 501:
! 502: case 502:
! 503: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_GATE,
! 504: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 505: http->next = HTTP_ERROR;
! 506: http->result = -502;
! 507: break;
! 508:
! 509: case 503:
! 510: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_DOWN,
! 511: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 512: http->next = HTTP_ERROR;
! 513:
! 514: /*
! 515: ** If Retry-After header is found then return HT_RETRY else HT_ERROR.
! 516: ** The caller may want to reissue the request at a later point in time.
! 517: */
! 518: {
! 519: HTResponse * response = HTRequest_response(me->request);
! 520: if (HTResponse_retryTime(response))
! 521: http->result = HT_RETRY;
! 522: else
! 523: http->result = -500;
! 524: }
! 525: break;
! 526:
! 527: case 504:
! 528: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_GATE_TIMEOUT,
! 529: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 530: http->next = HTTP_ERROR;
! 531: http->result = -504;
! 532: break;
! 533:
! 534: case 505: /* Unsupported protocol version */
! 535: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_VERSION,
! 536: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 537: http->next = HTTP_ERROR;
! 538: http->result = HT_BAD_VERSION;
! 539: break;
! 540:
! 541: case 506: /* Partial update Not Implemented */
! 542: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NO_PARTIAL_UPDATE,
! 543: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 544: http->next = HTTP_ERROR;
! 545: http->result = HT_BAD_VERSION;
! 546: break;
! 547:
! 548: default: /* bad number */
! 549: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_INTERNAL,
! 550: me->reason, (int) strlen(me->reason), "HTTPNextState");
! 551: http->next = HTTP_ERROR;
! 552: http->result = -500;
! 553: break;
1.140 frystyk 554: }
1.78 frystyk 555: break;
556:
1.158 ! frystyk 557: default:
1.104 frystyk 558: HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_BAD_REPLY,
1.158 ! frystyk 559: (void *) me->buffer, me->buflen, "HTTPNextState");
1.134 frystyk 560: http->next = HTTP_ERROR;
1.155 frystyk 561: http->result = -(me->status);
1.71 frystyk 562: break;
1.55 frystyk 563: }
564: }
565:
1.71 frystyk 566: /* ------------------------------------------------------------------------- */
567: /* HTTP Status Line Stream */
568: /* ------------------------------------------------------------------------- */
1.55 frystyk 569:
1.71 frystyk 570: /*
1.141 frystyk 571: ** Analyze the stream we have read. If it is a HTTP 1.0 or higher
1.71 frystyk 572: ** then create a MIME-stream, else create a Guess stream to find out
573: ** what the 0.9 server is sending. We need to copy the buffer as we don't
574: ** know if we can modify the contents or not.
1.78 frystyk 575: **
576: ** Stream handling is a function of the status code returned from the
577: ** server:
578: ** 200: Use `output_stream' in HTRequest structure
1.94 frystyk 579: ** else: Use `debug_stream' in HTRequest structure
1.80 frystyk 580: **
581: ** Return: YES if buffer should be written out. NO otherwise
1.56 frystyk 582: */
1.157 frystyk 583: PRIVATE int stream_pipe (HTStream * me, int length)
1.56 frystyk 584: {
1.136 frystyk 585: HTRequest * request = me->request;
586: HTNet * net = HTRequest_net(request);
1.123 frystyk 587: HTHost * host = HTNet_host(net);
1.141 frystyk 588:
1.153 frystyk 589: #if 0
590: {
591: char * uri = HTAnchor_address((HTAnchor *) HTRequest_anchor(request));
592: fprintf(stderr, "HTTP header: %s for '%s'\n", me->buffer, uri);
593: HT_FREE(uri);
594: }
595: #endif
596:
1.132 frystyk 597: /*
598: ** Just check for HTTP and not HTTP/ as NCSA server chokes on 1.1 replies
599: ** Thanks to Markku Savela <msa@msa.tte.vtt.fi>
1.141 frystyk 600:
1.132 frystyk 601: */
602: if (strncasecomp(me->buffer, "http", 4)) {
1.80 frystyk 603: int status;
1.136 frystyk 604: HTRequest_addError(request, ERR_INFO, NO, HTERR_HTTP09,
1.80 frystyk 605: (void *) me->buffer, me->buflen, "HTTPStatusStream");
1.136 frystyk 606: me->target = HTStreamStack(WWW_UNKNOWN,
607: HTRequest_outputFormat(request),
608: HTRequest_outputStream(request),
609: request, NO);
1.134 frystyk 610: me->http->next = HTTP_OK;
1.80 frystyk 611: if ((status = PUTBLOCK(me->buffer, me->buflen)) == HT_OK)
612: me->transparent = YES;
1.123 frystyk 613: HTHost_setVersion(host, HTTP_09);
1.157 frystyk 614: if (length > 0) HTHost_setConsumed(host, length);
1.80 frystyk 615: return status;
616: } else {
1.140 frystyk 617: HTResponse * response = HTRequest_response(request);
1.155 frystyk 618: char * ptr = me->buffer+5; /* Skip the HTTP part */
619: char * vptr = NULL;
620: int major = 0;
621: int minor = 0;
622: me->version = vptr = HTNextField(&ptr);
623: if (vptr) {
624: major = (int) strtol(me->version, &vptr, 10);
625: if (vptr++) minor = strtol(vptr, NULL, 10);
626: }
1.95 frystyk 627:
1.130 frystyk 628: /* Here we want to find out when to use persistent connection */
1.155 frystyk 629: if (major > 1) {
630: if (PROT_TRACE)HTTrace("HTTP Status. Major version number is %d\n", major);
631: me->target = HTErrorStream();
1.158 ! frystyk 632: me->status = 9999;
1.155 frystyk 633: HTTPNextState(me); /* Get next state */
1.158 ! frystyk 634: return HT_ERROR;
1.155 frystyk 635: } else if (minor <= 0) {
636: if (PROT_TRACE)HTTrace("HTTP Status. This is an HTTP/1.0 server\n");
1.128 frystyk 637: HTHost_setVersion(host, HTTP_10);
1.155 frystyk 638: } else { /* 1.x, x>0 family */
639: HTHost_setVersion(host, HTTP_11); /* Best we can do */
1.156 frystyk 640: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
641: if (PROT_TRACE)
642: HTTrace("HTTP........ Mode is HTTP/1.1 with NO PIPELINING\n");
1.147 frystyk 643: HTNet_setPersistent(net, YES, HT_TP_SINGLE);
1.156 frystyk 644: } else if (ConnectionMode & HTTP_11_MUX) {
645: if (PROT_TRACE)
646: HTTrace("HTTP........ Mode is HTTP/1.1 with MUXING\n");
647: HTNet_setPersistent(net, YES, HT_TP_INTERLEAVE);
1.147 frystyk 648: } else if (ConnectionMode & HTTP_FORCE_10) {
649: if (PROT_TRACE) HTTrace("HTTP........ Mode is FORCE HTTP/1.0\n");
650: HTHost_setVersion(host, HTTP_10);
651: HTNet_setPersistent(net, NO, HT_TP_SINGLE);
652: } else
653: HTNet_setPersistent(net, YES, HT_TP_PIPELINE);
1.128 frystyk 654: }
1.95 frystyk 655:
1.81 frystyk 656: me->status = atoi(HTNextField(&ptr));
657: me->reason = ptr;
658: if ((ptr = strchr(me->reason, '\r')) != NULL) /* Strip \r and \n */
659: *ptr = '0円';
660: else if ((ptr = strchr(me->reason, '\n')) != NULL)
661: *ptr = '0円';
662:
1.130 frystyk 663: /*
664: ** If it is a 1xx code then find out what to do and return until we
665: ** get the next code. In the case of Upgrade we may not get back here
666: ** at all. If we are uploading an entity then continue doing that
667: */
668: if (me->status/100 == 1) {
1.136 frystyk 669: if (HTTPInformation(me) == YES) {
670: me->buflen = 0;
671: me->state = EOL_BEGIN;
1.157 frystyk 672: if (me->info_target) (*me->info_target->isa->_free)(me->info_target);
673: me->info_target = HTStreamStack(WWW_MIME_CONT,
674: HTRequest_debugFormat(request),
675: HTRequest_debugStream(request),
676: request, NO);
677: if (length > 0) HTHost_setConsumed(host, length);
678: return HT_OK;
1.103 frystyk 679: }
1.56 frystyk 680: }
1.133 frystyk 681:
682: /*
683: ** As we are getting fresh metainformation in the HTTP response,
684: ** we clear the old metainfomation in order not to mix it with the new
685: ** one. This is particularly important for the content-length and the
1.139 frystyk 686: ** like. The TRACE and OPTIONS method just adds to the current
687: ** metainformation so in that case we don't clear the anchor.
1.133 frystyk 688: */
1.136 frystyk 689: if (me->status==200 || me->status==203 || me->status==300) {
1.140 frystyk 690: /*
691: ** 200, 203 and 300 are all fully cacheable responses. No byte
692: ** ranges or anything else make life hard in this case.
693: */
1.148 frystyk 694: HTAnchor_clearHeader(HTRequest_anchor(request));
1.140 frystyk 695: HTResponse_setCachable(response, YES);
1.136 frystyk 696: me->target = HTStreamStack(WWW_MIME,
697: HTRequest_outputFormat(request),
698: HTRequest_outputStream(request),
699: request, NO);
1.140 frystyk 700: } else if (me->status==206) {
701: /*
702: ** We got a partial response and now we must check whether
703: ** we issued a cache If-Range request or it was a new
704: ** partial response which we don't have in cache. In the latter
705: ** case, we don't cache the object and in the former we append
706: ** the result to the already existing cache entry.
707: */
708: HTReload reload = HTRequest_reloadMode(request);
709: if (reload == HT_CACHE_RANGE_VALIDATE) {
710: HTResponse_setCachable(response, YES);
711: me->target = HTStreamStack(WWW_MIME_PART,
712: HTRequest_outputFormat(request),
713: HTRequest_outputStream(request),
714: request, NO);
715: } else {
1.149 frystyk 716: HTAnchor_clearHeader(HTRequest_anchor(request));
1.140 frystyk 717: me->target = HTStreamStack(WWW_MIME,
718: HTRequest_outputFormat(request),
719: HTRequest_outputStream(request),
720: request, NO);
721: }
1.139 frystyk 722: } else if (me->status==204 || me->status==304) {
1.140 frystyk 723: HTResponse_setCachable(response, YES);
1.136 frystyk 724: me->target = HTStreamStack(WWW_MIME_HEAD,
725: HTRequest_debugFormat(request),
726: HTRequest_debugStream(request),
727: request, NO);
728: } else if (HTRequest_debugStream(request)) {
729: me->target = HTStreamStack(WWW_MIME,
730: HTRequest_debugFormat(request),
731: HTRequest_debugStream(request),
732: request, NO);
733: } else {
1.140 frystyk 734: /*
735: ** We still need to parse the MIME part in order to find any
736: ** valuable meta information which is needed from the response.
737: */
1.136 frystyk 738: me->target = HTStreamStack(WWW_MIME,
739: HTRequest_debugFormat(request),
740: HTRequest_debugStream(request),
741: request, NO);
1.133 frystyk 742: }
1.56 frystyk 743: }
1.113 frystyk 744: if (!me->target) me->target = HTErrorStream();
1.81 frystyk 745: HTTPNextState(me); /* Get next state */
1.80 frystyk 746: me->transparent = YES;
1.157 frystyk 747: if (length > 0) HTHost_setConsumed(HTNet_host(HTRequest_net(me->request)), length);
1.80 frystyk 748: return HT_OK;
1.71 frystyk 749: }
1.56 frystyk 750:
1.80 frystyk 751: /*
752: ** Searches for HTTP header line until buffer fills up or a CRLF or LF
753: ** is found
754: */
1.119 frystyk 755: PRIVATE int HTTPStatus_put_block (HTStream * me, const char * b, int l)
1.71 frystyk 756: {
1.150 frystyk 757: int status = HT_OK;
1.153 frystyk 758: int length = l;
1.146 frystyk 759: me->startLen = me->buflen;
1.80 frystyk 760: while (!me->transparent && l-- > 0) {
1.157 frystyk 761: if (me->info_target) {
762:
763: /* Put data down the 1xx return code parser until we are done. */
764: status = (*me->info_target->isa->put_block)(me->info_target, b, l+1);
765: if (status != HT_CONTINUE) return status;
766:
767: /* Now free the info stream */
768: (*me->info_target->isa->_free)(me->info_target);
769: me->info_target = NULL;
770:
771: /* Update where we are in the stream */
772: l = HTHost_remainingRead(HTNet_host(HTRequest_net(me->request)));
773: b += (length-l);
774:
1.80 frystyk 775: } else {
776: *(me->buffer+me->buflen++) = *b;
777: if (me->state == EOL_FCR) {
778: if (*b == LF) { /* Line found */
1.157 frystyk 779: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 780: } else {
781: me->state = EOL_BEGIN;
782: }
783: } else if (*b == CR) {
784: me->state = EOL_FCR;
785: } else if (*b == LF) {
1.157 frystyk 786: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.71 frystyk 787: } else {
1.80 frystyk 788: if (me->buflen >= MAX_STATUS_LEN) {
1.157 frystyk 789: if ((status = stream_pipe(me, length-l)) != HT_OK) return status;
1.80 frystyk 790: }
1.71 frystyk 791: }
1.80 frystyk 792: b++;
1.71 frystyk 793: }
1.56 frystyk 794: }
1.153 frystyk 795:
1.99 frystyk 796: if (l > 0) return PUTBLOCK(b, l);
1.150 frystyk 797: return status;
1.56 frystyk 798: }
799:
1.119 frystyk 800: PRIVATE int HTTPStatus_put_string (HTStream * me, const char * s)
1.71 frystyk 801: {
1.80 frystyk 802: return HTTPStatus_put_block(me, s, (int) strlen(s));
1.71 frystyk 803: }
1.56 frystyk 804:
1.100 frystyk 805: PRIVATE int HTTPStatus_put_character (HTStream * me, char c)
1.71 frystyk 806: {
1.80 frystyk 807: return HTTPStatus_put_block(me, &c, 1);
808: }
809:
1.100 frystyk 810: PRIVATE int HTTPStatus_flush (HTStream * me)
1.80 frystyk 811: {
812: return (*me->target->isa->flush)(me->target);
1.71 frystyk 813: }
814:
1.100 frystyk 815: PRIVATE int HTTPStatus_free (HTStream * me)
1.71 frystyk 816: {
1.87 frystyk 817: int status = HT_OK;
818: if (me->target) {
819: if ((status = (*me->target->isa->_free)(me->target))==HT_WOULD_BLOCK)
820: return HT_WOULD_BLOCK;
821: }
1.115 frystyk 822: HT_FREE(me);
1.100 frystyk 823: return status;
1.71 frystyk 824: }
825:
1.104 frystyk 826: PRIVATE int HTTPStatus_abort (HTStream * me, HTList * e)
1.71 frystyk 827: {
828: if (me->target)
1.74 frystyk 829: ABORT_TARGET;
1.115 frystyk 830: HT_FREE(me);
1.74 frystyk 831: if (PROT_TRACE)
1.116 eric 832: HTTrace("HTTPStatus.. ABORTING...\n");
1.80 frystyk 833: return HT_ERROR;
1.71 frystyk 834: }
835:
836: /* HTTPStatus Stream
837: ** -----------------
838: */
1.119 frystyk 839: PRIVATE const HTStreamClass HTTPStatusClass =
1.71 frystyk 840: {
841: "HTTPStatus",
1.80 frystyk 842: HTTPStatus_flush,
1.71 frystyk 843: HTTPStatus_free,
844: HTTPStatus_abort,
845: HTTPStatus_put_character,
846: HTTPStatus_put_string,
847: HTTPStatus_put_block
848: };
849:
1.113 frystyk 850: PUBLIC HTStream * HTTPStatus_new (HTRequest * request,
851: void * param,
852: HTFormat input_format,
853: HTFormat output_format,
854: HTStream * output_stream)
1.71 frystyk 855: {
1.115 frystyk 856: HTStream * me;
857: if ((me = (HTStream *) HT_CALLOC(1, sizeof(HTStream))) == NULL)
858: HT_OUTOFMEM("HTTPStatus_new");
1.71 frystyk 859: me->isa = &HTTPStatusClass;
1.113 frystyk 860: if (request) {
1.126 frystyk 861: HTNet * net = HTRequest_net(request);
1.125 frystyk 862: /* Get existing copy */
863: http_info * http = (http_info *) HTNet_context(net);
1.113 frystyk 864: me->request = request;
865: me->http = http;
866: http->next = HTTP_ERROR;
867: me->state = EOL_BEGIN;
868: return me;
869: } else
870: return HTErrorStream();
1.71 frystyk 871: }
872:
873: /* ------------------------------------------------------------------------- */
874:
875: /* Load Document from HTTP Server HTLoadHTTP
1.55 frystyk 876: ** ==============================
877: **
878: ** Given a hypertext address, this routine loads a document.
879: **
880: ** On entry,
881: ** request This is the request structure
1.94 frystyk 882: ** returns HT_ERROR Error has occured in call back
883: ** HT_OK Call back was OK
1.55 frystyk 884: */
1.141 frystyk 885: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type);
886:
887: PUBLIC int HTLoadHTTP (SOCKET soc, HTRequest * request)
1.55 frystyk 888: {
889: http_info *http; /* Specific protocol information */
1.112 frystyk 890: HTParentAnchor *anchor = HTRequest_anchor(request);
1.141 frystyk 891: HTNet * net = HTRequest_net(request);
1.112 frystyk 892:
1.94 frystyk 893: /*
894: ** Initiate a new http structure and bind to request structure
895: ** This is actually state HTTP_BEGIN, but it can't be in the state
896: ** machine as we need the structure first.
897: */
1.141 frystyk 898: if (PROT_TRACE) HTTrace("HTTP........ Looking for `%s\'\n",
899: HTAnchor_physical(anchor));
900: if ((http = (http_info *) HT_CALLOC(1, sizeof(http_info))) == NULL)
901: HT_OUTOFMEM("HTLoadHTTP");
902: http->net = net;
1.157 frystyk 903: http->request = request;
1.141 frystyk 904: HTNet_setContext(net, http);
905: HTNet_setEventCallback(net, HTTPEvent);
906: HTNet_setEventParam(net, http); /* callbacks get http* */
907:
1.157 frystyk 908: return HTTPEvent(soc, http, HTEvent_BEGIN); /* get it started - ops is ignored */
909: }
910:
911: PRIVATE int FlushPutEvent (HTTimer * timer, void * param, HTEventType type)
912: {
913: http_info * http = (http_info *) param;
914: HTStream * input = HTRequest_inputStream(http->request);
915: HTPostCallback * pcbf = HTRequest_postCallback(http->request);
916:
917: if (timer != http->timer) HTDebugBreak();
918: if (PROT_TRACE) HTTrace("Uploading... Flushing %p with timer %p\n", http, timer);
919:
920: /*
921: ** We ignore the return code here which we shouldn't!!!
922: */
923: if (http && input && pcbf) (*pcbf)(http->request, input);
924:
925: /*
926: ** Delete the timer
927: */
928: http->timer = NULL;
929: return HT_OK;
1.141 frystyk 930: }
931:
932: PRIVATE int HTTPEvent (SOCKET soc, void * pVoid, HTEventType type)
933: {
934: http_info * http = (http_info *)pVoid;
935: int status = HT_ERROR;
936: HTNet * net = http->net;
937: HTRequest * request = HTNet_request(net);
1.144 frystyk 938: HTParentAnchor * anchor = HTRequest_anchor(request);
939: HTHost * host = HTNet_host(net);
1.141 frystyk 940:
941: /*
942: ** Check whether we have been interrupted
943: */
944: if (type == HTEvent_BEGIN) {
1.134 frystyk 945: http->next = HTTP_OK;
946: http->result = HT_ERROR;
1.141 frystyk 947: } else if (type == HTEvent_CLOSE) {
1.112 frystyk 948: HTRequest_addError(request, ERR_FATAL, NO, HTERR_INTERRUPTED,
949: NULL, 0, "HTLoadHTTP");
950: HTTPCleanup(request, HT_INTERRUPTED);
1.94 frystyk 951: return HT_OK;
1.141 frystyk 952: } else if (type == HTEvent_END) {
953: HTTPCleanup(request, http->result);
954: return HT_OK;
955: } else if (type == HTEvent_RESET) {
956: HTTPCleanup(request, HT_RECOVER_PIPE);
1.145 frystyk 957: http->state = HTTP_BEGIN;
1.141 frystyk 958: return HT_OK;
959: }
960:
1.71 frystyk 961: /* Now jump into the machine. We know the state from the previous run */
962: while (1) {
963: switch (http->state) {
1.134 frystyk 964: case HTTP_BEGIN:
1.144 frystyk 965: status = HTHost_connect(host, net, HTAnchor_physical(anchor), HTTP_PORT);
966: host = HTNet_host(net);
1.153 frystyk 967: if (status == HT_OK) {
1.140 frystyk 968:
1.123 frystyk 969: /*
1.140 frystyk 970: ** Check the protocol class to see if we have connected to a
971: ** the right class of server, in this case HTTP. If we don't
972: ** know the server then assume a HTTP/1.0
1.123 frystyk 973: */
974: {
975: char * s_class = HTHost_class(host);
1.140 frystyk 976: if (!s_class) {
977: if (HTRequest_proxy(request) == NULL)
978: HTRequest_addConnection(request, "Keep-Alive", "");
979: HTHost_setClass(host, "http");
980: } else if (strcasecomp(s_class, "http")) {
1.123 frystyk 981: HTRequest_addError(request, ERR_FATAL, NO, HTERR_CLASS,
982: NULL, 0, "HTLoadHTTP");
983: http->state = HTTP_ERROR;
984: break;
985: }
1.95 frystyk 986: }
1.147 frystyk 987:
1.156 frystyk 988: if (ConnectionMode & HTTP_11_NO_PIPELINING) {
1.147 frystyk 989: if (PROT_TRACE) HTTrace("HTTP........ Mode is HTTP/1.1 WITH NO PIPELINING\n");
990: HTRequest_setFlush(request, YES);
991: } else if (ConnectionMode & HTTP_FORCE_10) {
992: if (PROT_TRACE) HTTrace("HTTP........ Mode is FORCE HTTP/1.0\n");
993: HTHost_setVersion(host, HTTP_10);
994: }
995:
1.151 frystyk 996: if (HTNet_preemptive(net)) {
997: if (PROT_TRACE) HTTrace("HTTP........ Force flush on preemptive load\n");
998: HTRequest_setFlush(request, YES);
999: }
1000:
1.147 frystyk 1001: /* Jump to next state */
1.144 frystyk 1002: http->state = HTTP_NEED_STREAM;
1003: } else if (status == HT_WOULD_BLOCK || status == HT_PENDING)
1004: return HT_OK;
1005: else
1006: http->state = HTTP_ERROR; /* Error or interrupt */
1007: break;
1008:
1009: case HTTP_NEED_STREAM:
1.138 frystyk 1010:
1.144 frystyk 1011: /*
1012: ** Create the stream pipe FROM the channel to the application.
1013: ** The target for the input stream pipe is set up using the
1014: ** stream stack.
1015: */
1.153 frystyk 1016: {
1.144 frystyk 1017: HTStream *me=HTStreamStack(WWW_HTTP,
1018: HTRequest_outputFormat(request),
1019: HTRequest_outputStream(request),
1020: request, YES);
1021: HTNet_setReadStream(net, me);
1022: HTRequest_setOutputConnected(request, YES);
1023: }
1.127 frystyk 1024:
1.144 frystyk 1025: /*
1026: ** Create the stream pipe TO the channel from the application
1027: ** and hook it up to the request object
1028: */
1029: {
1030: HTChannel * channel = HTHost_channel(host);
1031: HTOutputStream * output = HTChannel_getChannelOStream(channel);
1032: int version = HTHost_version(host);
1033: HTStream * app = NULL;
1034:
1.139 frystyk 1035: #ifdef HTTP_DUMP
1.144 frystyk 1036: if (PROT_TRACE) {
1.147 frystyk 1037: FILE * htfp = NULL;
1038: if ((htfp = fopen(HTTP_OUTPUT, "ab")) != NULL) {
1.144 frystyk 1039: output = (HTOutputStream *)
1.147 frystyk 1040: HTTee((HTStream *) output, HTFWriter_new(request, htfp, NO), NULL);
1041: HTTrace("HTTP........ Dumping request to `%s\'\n", HTTP_OUTPUT);
1.144 frystyk 1042: }
1043: }
1.139 frystyk 1044: #endif /* HTTP_DUMP */
1.144 frystyk 1045: app = HTMethod_hasEntity(HTRequest_method(request)) ?
1046: HTMIMERequest_new(request,
1047: HTTPRequest_new(request, (HTStream *) output, NO,
1048: version),
1049: YES) :
1050: HTTPRequest_new(request, (HTStream *) output, YES, version);
1051: HTRequest_setInputStream(request, app);
1052: }
1.88 frystyk 1053:
1.144 frystyk 1054: /*
1055: ** Set up concurrent read/write if this request isn't the
1056: ** source for a PUT or POST. As source we don't start reading
1057: ** before all destinations are ready. If destination then
1058: ** register the input stream and get ready for read
1059: */
1060: if (HTRequest_isDestination(request)) {
1061: HTHost_register(host, net, HTEvent_READ);
1062: HTRequest_linkDestination(request);
1063: }
1064: http->state = HTTP_CONNECTED;
1065: type = HTEvent_WRITE; /* fresh, so try a write */
1.71 frystyk 1066: break;
1067:
1.87 frystyk 1068: /* As we can do simultanous read and write this is now one state */
1.141 frystyk 1069: case HTTP_CONNECTED:
1070: if (type == HTEvent_WRITE) {
1.157 frystyk 1071: HTStream * input = HTRequest_inputStream(request);
1072: HTPostCallback * pcbf = HTRequest_postCallback(request);
1073: status = HTRequest_flush(request) ?
1074: HTHost_forceFlush(host) : (*input->isa->flush)(input);
1075:
1076: /*
1077: ** Check to see if we are uploading something or just a normal
1078: ** GET kind of thing.
1079: */
1080: if (pcbf) {
1081: if (http->lock == NO) {
1082: int retrys = HTRequest_retrys(request);
1083: ms_t delay = retrys > 3 ? 3000 : 2000;
1084: if (!http->timer) {
1085: ms_t exp = HTGetTimeInMillis() + delay;
1086: http->timer = HTTimer_new(NULL, FlushPutEvent, http, exp, NO);
1087: if (PROT_TRACE)
1088: HTTrace("Uploading... Holding %p request for %lu ms\n",
1089: request, delay);
1090: HTHost_register(host, net, HTEvent_READ);
1091: }
1092: http->lock = YES;
1093: }
1094: type = HTEvent_READ;
1095: } else {
1096:
1097: /*
1098: ** Check to see if we can start a new request
1099: ** pending in the host object.
1100: */
1101: HTHost_launchPending(host);
1102: type = HTEvent_READ;
1103: }
1104:
1105: /* Now check the status code */
1106: if (status == HT_WOULD_BLOCK)
1107: return HT_OK;
1108: else if (status == HT_PAUSE || status == HT_LOADED) {
1109: type = HTEvent_READ;
1110: } else if (status==HT_CLOSED)
1111: http->state = HTTP_RECOVER_PIPE;
1112: else if (status == HT_ERROR) {
1113: http->result = HT_INTERRUPTED;
1114: http->state = HTTP_ERROR;
1115: break;
1116: }
1117: } else if (type == HTEvent_FLUSH) {
1118: HTStream * input = HTRequest_inputStream(request);
1119: if (input == NULL)
1120: return HT_ERROR;
1121: return (*input->isa->flush)(input);
1122: } else if (type == HTEvent_READ) {
1123: status = HTHost_read(host, net);
1124: if (status == HT_WOULD_BLOCK)
1125: return HT_OK;
1126: else if (status == HT_CONTINUE) {
1127: if (PROT_TRACE) HTTrace("HTTP........ Continuing\n");
1128: http->lock = NO;
1129: continue;
1130: } else if (status==HT_LOADED)
1131: http->state = http->next; /* Jump to next state (OK or ERROR) */
1132: else if (status==HT_CLOSED)
1133: http->state = HTTP_RECOVER_PIPE;
1134: else
1135: http->state = HTTP_ERROR;
1136: } else {
1137: http->state = HTTP_ERROR; /* don't know how to handle OOB */
1138: }
1139: break;
1.141 frystyk 1140:
1.134 frystyk 1141: case HTTP_OK:
1.88 frystyk 1142: if (HTRequest_isPostWeb(request)) {
1.91 frystyk 1143: if (HTRequest_isDestination(request)) {
1.126 frystyk 1144: HTRequest * source = HTRequest_source(request);
1.91 frystyk 1145: HTLink *link =
1.127 frystyk 1146: HTLink_find((HTAnchor *)HTRequest_anchor(source),
1.112 frystyk 1147: (HTAnchor *) anchor);
1.109 frystyk 1148: HTLink_setResult(link, HT_LINK_OK);
1.91 frystyk 1149: }
1.112 frystyk 1150: }
1.134 frystyk 1151: HTTPCleanup(request, http->result);
1.94 frystyk 1152: return HT_OK;
1.71 frystyk 1153: break;
1.141 frystyk 1154:
1155: case HTTP_RECOVER_PIPE:
1156: {
1157: /*
1158: ** If this is a persistent connection and we get a close
1159: ** then it is an error and we should recover from it by
1160: ** restarting the pipe line of requests if any
1161: */
1.151 frystyk 1162: if (HTHost_isPersistent(host) && !HTHost_closeNotification(host)) {
1.143 frystyk 1163: if (host == NULL) return HT_ERROR;
1.144 frystyk 1164: HTRequest_setFlush(request, YES);
1165: HTHost_recoverPipe(host);
1166: http->state = HTTP_BEGIN;
1167: HTHost_launchPending(host);
1168: return HT_OK;
1.141 frystyk 1169: } else
1170: http->state = HTTP_OK;
1171: }
1.143 frystyk 1172: break;
1.141 frystyk 1173:
1.71 frystyk 1174: case HTTP_ERROR:
1.143 frystyk 1175: if (HTRequest_isPostWeb(request)) {
1176: if (HTRequest_isDestination(request)) {
1177: HTRequest * source = HTRequest_source(request);
1178: HTLink *link =
1179: HTLink_find((HTAnchor *)HTRequest_anchor(source),
1180: (HTAnchor *) anchor);
1181: HTLink_setResult(link, HT_LINK_ERROR);
1182: }
1183: HTRequest_killPostWeb(request);
1184: }
1185: HTTPCleanup(request, http->result);
1186: return HT_OK;
1187: break;
1188:
1.141 frystyk 1189: default:
1190: HTTrace("bad http state %d.\n", http->state);
1191: HTDebugBreak();
1.71 frystyk 1192: }
1193: } /* End of while(1) */
1194: }
1.88 frystyk 1195:
1.147 frystyk 1196: PUBLIC void HTTP_setConnectionMode (HTTPConnectionMode mode)
1197: {
1198: ConnectionMode = mode;
1199: }
1200:
1201: PUBLIC HTTPConnectionMode HTTP_connectionMode (void)
1202: {
1203: return ConnectionMode;
1204: }
1.21 luotonen 1205:
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