Annotation of Amaya/amaya/query.c, revision 1.31
1.14 cvs 1: /*
2: *
3: * (c) COPYRIGHT MIT and INRIA, 1996.
4: * Please first read the full copyright statement in file COPYRIGHT.
5: *
6: */
1.4 cvs 7:
1.19 cvs 8: /*
9: * query.c : contains all the functions for requesting iand publishing
10: * URLs via libwww. It handles any eventual HTTP error code
11: * (redirection, authentication needed, not found, etc.)
12: *
13: * Author: J. Kahan
14: *
15: */
1.17 cvs 16:
1.12 cvs 17: /* Amaya includes */
1.25 cvs 18: #define THOT_EXPORT extern
1.4 cvs 19: #include "amaya.h"
1.7 cvs 20:
1.4 cvs 21: #if defined(__svr4__)
22: #define CATCH_SIG
23: #endif
24:
1.27 cvs 25: #define XBM_FORMAT 0
26: #define EPS_FORMAT 1
27: #define XPM_FORMAT 2
28: #define GIF_FORMAT 3
29: #define JPEG_FORMAT 4
30: #define PNG_FORMAT 5
31:
1.17 cvs 32: /*----------------------------------------------------------------------*/
33:
1.4 cvs 34: /* local structures coming from libwww and which are
1.17 cvs 35: not found in any .h file
1.7 cvs 36: */
1.4 cvs 37:
1.7 cvs 38: struct _HTStream
39: {
1.15 cvs 40: const HTStreamClass *isa;
41: FILE *fp;
42: BOOL leave_open; /* Close file when HT_FREE? */
43: char *end_command; /* Command to execute */
44: BOOL remove_on_close; /* Remove file? */
45: char *filename; /* Name of file */
46: HTRequest *request; /* saved for callback */
47: HTRequestCallback *callback;
1.7 cvs 48: };
49:
1.15 cvs 50:
1.7 cvs 51: struct _HTError
52: {
53: HTErrorElement element; /* Index number into HTError */
54: HTSeverity severity; /* A la VMS */
55: BOOL ignore; /* YES if msg should not go to user */
56: void *par; /* Explanation, e.g. filename */
57: int length; /* For copying by generic routine */
58: char *where; /* Which function */
59: };
60:
61:
62: struct _HTHost
63: {
64: char *hostname; /* name of host + optional port */
65: time_t ntime; /* Creation time */
66: char *type; /* Peer type */
67: int version; /* Peer version */
68: HTMethod methods; /* Public methods (bit-flag) */
69: char *server; /* Server name */
70: char *user_agent; /* User Agent */
71: char *range_units; /* Acceptable range units */
72: HTTransportMode mode; /* Supported mode */
73: HTChannel *channel; /* Persistent channel */
74: HTList *pipeline; /* Pipe line of net objects */
75: HTList *pending; /* List of pending Net objects */
76: time_t expires; /* Persistent channel expires time */
77: };
1.4 cvs 78:
79: /* Type definitions and global variables etc. local to this module */
80:
1.17 cvs 81: /*----------------------------------------------------------------------*/
82:
1.4 cvs 83: /*** private variables ***/
1.17 cvs 84:
1.4 cvs 85: static HTList *converters = NULL; /* List of global converters */
1.27 cvs 86: static HTList *acceptTypes = NULL; /* List of types for the Accept header */
1.4 cvs 87: static HTList *encodings = NULL;
1.16 cvs 88: static int object_counter = 0; /* loaded objects counter */
1.24 cvs 89: static boolean AmayaIsAlive;
1.4 cvs 90:
1.15 cvs 91: #include "answer_f.h"
92: #include "query_f.h"
93: #include "AHTURLTools_f.h"
94: #include "AHTBridge_f.h"
95: #include "AHTMemConv_f.h"
96: #include "AHTFWrite_f.h"
1.4 cvs 97:
1.15 cvs 98:
99: /*----------------------------------------------------------------------
1.17 cvs 100: GetDocIdStatus
101: gets the status associated to a docid
1.15 cvs 102: ----------------------------------------------------------------------*/
103: #ifdef __STDC__
104: AHTDocId_Status *GetDocIdStatus (int docid, HTList * documents)
105: #else
106: AHTDocID_Status *GetDocIdStatus (docid, documents)
107: int docid;
108: HTList *documents;
109:
110: #endif
111: {
112: AHTDocId_Status *me;
113: HTList *cur;
114:
115: if (documents)
116: {
117: cur = documents;
118:
119: while ((me = (AHTDocId_Status *) HTList_nextObject (cur)))
120: {
121: if (me->docid == docid)
122: return (me);
1.18 cvs 123: }
124: }
1.15 cvs 125: return (AHTDocId_Status *) NULL;
126:
127: }
128:
1.5 cvs 129: /*----------------------------------------------------------------------
1.27 cvs 130: AHTGuessAtom_for
131: Converts an Amaya type descriptor into the equivalent MIME type.
132: ----------------------------------------------------------------------*/
133: #ifdef __STDC__
134: static HTAtom *AHTGuessAtom_for (char *urlName, PicType contentType)
135: #else
136: static HTAtom *AHTGuessAtom_for (urlName, contentType)
137: char *urlName;
138: PicType contentType;
139: #endif
140: {
141: HTAtom *atom;
142: char *filename;
143: HTEncoding enc;
144: HTEncoding cte;
145: HTLanguage lang;
146: double quality;
147:
148: switch (contentType)
149: {
150: case xbm_type:
151: atom = HTAtom_for("image/xbm");
152: break;
153: case eps_type:
154: atom = HTAtom_for("application/postscriptm");
155: break;
156: case xpm_type:
157: atom = HTAtom_for("image/xpm");
158: break;
159: case gif_type:
160: atom = HTAtom_for("image/gif");
161: break;
162: case jpeg_type:
163: atom = HTAtom_for("image/jpeg");
164: break;
165: case png_type:
166: atom = HTAtom_for("image/png");
167: break;
168: case unknown_type:
169: default:
170: /*
171: ** Amaya could not detect the type, so
172: ** we try to use the filename's suffix to do so.
173: */
174: filename = HTParse (urlName, "", PARSE_PATH | PARSE_PUNCTUATION);
175: HTBind_getFormat (filename, &atom, &enc, &cte, &lang, &quality);
176: HT_FREE (filename);
177: if (atom == WWW_UNKNOWN)
178: /*
179: ** we could not identify the suffix, so we assign it
180: ** a default type
181: */
182: atom = HTAtom_for ("text/html");
183: break;
184: }
185:
186: return atom;
187: }
188:
189: /*----------------------------------------------------------------------
1.17 cvs 190: AHTReqContext_new
191: create a new Amaya Context Object and update the global Amaya
192: request status.
1.5 cvs 193: ----------------------------------------------------------------------*/
1.4 cvs 194: #ifdef __STDC__
195: static AHTReqContext *AHTReqContext_new (int docid)
196: #else
197: static AHTReqContext *AHTReqContext_new (docid)
198: int docid;
199:
200: #endif
201: {
202: AHTReqContext *me;
203: AHTDocId_Status *docid_status;
204:
205: if ((me = (AHTReqContext *) TtaGetMemory (sizeof (AHTReqContext))) == NULL)
206: outofmem (__FILE__, "Context_new");
207:
208: /* Bind the Context object together with the Request Object */
209:
210: me->request = HTRequest_new ();
1.17 cvs 211:
1.4 cvs 212: /* Initialize the other members of the structure */
1.17 cvs 213: me->reqStatus = HT_NEW; /* initial status of a request */
1.4 cvs 214: me->output = NULL;
215: #ifdef WWW_XWINDOWS
216: me->read_xtinput_id = (XtInputId) NULL;
217: me->write_xtinput_id = (XtInputId) NULL;
218: me->except_xtinput_id = (XtInputId) NULL;
219: #endif
220: me->docid = docid;
221: HTRequest_setMethod (me->request, METHOD_GET);
222: HTRequest_setOutputFormat (me->request, WWW_SOURCE);
223: HTRequest_setContext (me->request, me);
224: me->read_ops = 0;
225: me->write_ops = 0;
226: me->except_ops = 0;
227:
228: /* Update the global context */
229: HTList_appendObject (Amaya->reqlist, (void *) me);
230:
231: docid_status = GetDocIdStatus (docid, Amaya->docid_status);
232:
1.7 cvs 233: if (docid_status == NULL)
234: {
235: docid_status = (AHTDocId_Status *) TtaGetMemory (sizeof (AHTDocId_Status));
236: docid_status->docid = docid;
237: docid_status->counter = 1;
238: HTList_addObject (Amaya->docid_status, (void *) docid_status);
239: }
240: else
1.4 cvs 241: docid_status->counter++;
242:
243:
244: Amaya->open_requests++;
245:
246: /* error stream handling */
247: me->error_stream = (char *) NULL;
248: me->error_stream_size = 0;
1.17 cvs 249:
1.4 cvs 250: return me;
251: }
252:
1.5 cvs 253: /*----------------------------------------------------------------------
1.17 cvs 254: AHTReqContext_delete
255: Delete an Amaya Context Object and update the global Amaya request
256: status.
1.5 cvs 257: ----------------------------------------------------------------------*/
1.4 cvs 258:
259: #ifdef __STDC__
1.15 cvs 260: boolean AHTReqContext_delete (AHTReqContext * me)
1.4 cvs 261: #else
1.15 cvs 262: boolean AHTReqContext_delete (me)
1.4 cvs 263: AHTReqContext *me;
264:
265: #endif
266: {
267: AHTDocId_Status *docid_status;
268:
1.7 cvs 269: if (me)
270: {
1.4 cvs 271:
1.7 cvs 272: if (Amaya->reqlist)
273: HTList_removeObject (Amaya->reqlist, (void *) me);
1.4 cvs 274:
1.7 cvs 275: docid_status = GetDocIdStatus (me->docid, Amaya->docid_status);
1.4 cvs 276:
1.7 cvs 277: if (docid_status)
278: {
279: docid_status->counter--;
280:
281: if (docid_status->counter == 0)
282: {
283: HTList_removeObject (Amaya->docid_status, (void *) docid_status);
284: TtaFreeMemory ((void *) docid_status);
285: }
286: }
287: HTRequest_delete (me->request);
1.4 cvs 288:
1.7 cvs 289: if (me->error_stream != (char *) NULL)
1.28 cvs 290: HT_FREE (me->error_stream);
1.21 cvs 291:
292: if (me->read_xtinput_id || me->write_xtinput_id ||
293: me->except_xtinput_id)
294: RequestKillAllXtevents(me);
1.4 cvs 295:
1.7 cvs 296: TtaFreeMemory ((void *) me);
1.4 cvs 297:
1.7 cvs 298: Amaya->open_requests--;
1.4 cvs 299:
1.15 cvs 300: return TRUE;
1.4 cvs 301:
1.7 cvs 302: }
1.15 cvs 303: return FALSE;
1.4 cvs 304: }
305:
306:
1.15 cvs 307: /*----------------------------------------------------------------------
308: AHTUpload_callback
1.17 cvs 309: callback handler for executing the PUT command
1.15 cvs 310: ----------------------------------------------------------------------*/
1.4 cvs 311: #ifdef __STDC__
312: static int AHTUpload_callback (HTRequest * request, HTStream * target)
313: #else
314: static int AHTUpload_callback (request, target)
315: HTRequest *request;
316: HTStream *target;
317:
318: #endif
319: {
320: AHTReqContext *me = HTRequest_context (request);
1.7 cvs 321: HTParentAnchor *entity = HTRequest_entityAnchor (request);
322: int len = HTAnchor_length (entity);
1.4 cvs 323: int status;
324:
325: /* Send the data down the pipe */
1.7 cvs 326:
1.4 cvs 327: status = (*target->isa->put_block) (target, me->mem_ptr, len);
328:
1.7 cvs 329: if (status == HT_LOADED || status == HT_OK)
330: {
1.13 cvs 331: if (PROT_TRACE)
332: HTTrace ("Posting Data Target is SAVED\n");
333: (*target->isa->flush) (target);
334: return (HT_LOADED);
1.7 cvs 335: }
336: if (status == HT_WOULD_BLOCK)
337: {
338: if (PROT_TRACE)
339: HTTrace ("Posting Data Target WOULD BLOCK\n");
340: return HT_WOULD_BLOCK;
341: }
342: else if (status == HT_PAUSE)
343: {
344: if (PROT_TRACE)
345: HTTrace ("Posting Data Target PAUSED\n");
346: return HT_PAUSE;
347: }
348: else if (status > 0)
349: { /* Stream specific return code */
350: if (PROT_TRACE)
351: HTTrace ("Posting Data. Target returns %d\n", status);
352: return status;
353: }
354: else
355: { /* we have a real error */
356: if (PROT_TRACE)
357: HTTrace ("Posting Data Target ERROR %d\n", status);
358: return status;
359: }
1.4 cvs 360: }
361:
1.5 cvs 362: /*----------------------------------------------------------------------
1.17 cvs 363: Thread_deleteAll
364: this function deletes the whole list of active threads.
1.5 cvs 365: ----------------------------------------------------------------------*/
1.4 cvs 366: #ifdef __STDC__
367: static void Thread_deleteAll (void)
368: #else
369: static void Thread_deleteAll ()
370: #endif
371: {
1.21 cvs 372: HTList *cur;
373: AHTReqContext *me;
374: AHTDocId_Status *docid_status;
375:
1.7 cvs 376: if (Amaya && Amaya->reqlist)
377: {
378: if (Amaya->open_requests > 0)
379: {
1.21 cvs 380: cur = Amaya->reqlist;
1.7 cvs 381:
382: HTNet_killAll ();
383: /* erase the requests */
384: while ((me = (AHTReqContext *) HTList_nextObject (cur)))
385: {
386: if (me->request)
387: {
1.4 cvs 388: #ifdef WWW_XWINDOWS
1.7 cvs 389: RequestKillAllXtevents (me);
1.4 cvs 390: #endif /* WWW_XWINDOWS */
1.7 cvs 391: AHTReqContext_delete (me);
392: }
393: } /* while */
1.21 cvs 394:
1.7 cvs 395: /* erase the docid_status entities */
396: while ((docid_status = (AHTDocId_Status *) HTList_removeLastObject ((void *) Amaya->docid_status)))
397: TtaFreeMemory ((void *) docid_status);
398:
399: } /* if */
400: }
1.4 cvs 401: }
402:
1.5 cvs 403: /*----------------------------------------------------------------------
1.17 cvs 404: redirection_handler
405: this function is registered to handle permanent and temporary
406: redirections.
407: ----------------------------------------------------------------------*/
1.4 cvs 408: #ifdef __STDC__
1.7 cvs 409: static int redirection_handler (HTRequest * request, HTResponse * response, void *param, int status)
1.4 cvs 410: #else
411: static int redirection_handler (request, context, status)
412: HTRequest *request;
413: HTResponse *response;
414: void *param;
415: int status;
416:
417: #endif
418: {
419:
420: char *ref;
421: HTAnchor *new_anchor = HTResponse_redirection (response);
1.7 cvs 422: AHTReqContext *me = HTRequest_context (request);
1.4 cvs 423: HTMethod method = HTRequest_method (request);
424:
425:
1.7 cvs 426: if (!new_anchor)
427: {
428: if (PROT_TRACE)
429: HTTrace ("Redirection. No destination\n");
430: return HT_OK;
431: }
1.4 cvs 432:
433: /*
434: ** Only do redirect on GET and HEAD
435: */
1.7 cvs 436: if (!HTMethod_isSafe (method))
437: {
438: HTAlertCallback *prompt = HTAlert_find (HT_A_CONFIRM);
439:
440: if (prompt)
441: {
442: if ((*prompt) (request, HT_A_CONFIRM, HT_MSG_REDIRECTION,
443: NULL, NULL, NULL) != YES)
444: return HT_ERROR;
445: }
446: }
1.4 cvs 447:
448: /*
449: ** Start new request with the redirect anchor found in the headers.
450: ** Note that we reuse the same request object which means that we must
451: ** keep this around until the redirected request has terminated. It also
452: ** allows us in an easy way to keep track of the number of redirections
453: ** so that we can detect endless loops.
454: */
1.17 cvs 455:
1.7 cvs 456: if (HTRequest_doRetry (request))
457: {
458:
459: /* Verify if this is not redundant */
460:
461: /* do we need to normalize the URL? */
462: if (strncmp (new_anchor->parent->address, "http:", 5))
463: {
464: /* Yes, so we use the pre-redirection anchor as a base name */
465: ref = HTParse (new_anchor->parent->address, me->urlName, PARSE_ALL);
466: if (ref)
467: {
468: HT_FREE (new_anchor->parent->address);
469: new_anchor->parent->address = ref;
470: }
471: }
472:
473: /* update the current file name */
1.21 cvs 474: if (strlen (new_anchor->parent->address) > (MAX_LENGTH - 2))
1.7 cvs 475: {
476: /*
477: ** copy MAX_LENGTH cars. The error will be detected later on and shown on the
478: ** screen. This code will be fixed up later on
479: */
1.21 cvs 480: strncpy (me->urlName, new_anchor->parent->address, MAX_LENGTH - 1);
481: me->urlName[MAX_LENGTH - 1] = EOS;
1.7 cvs 482: }
483: else
484: strcpy (me->urlName, new_anchor->parent->address);
485:
486: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_RED_FETCHING),
487: me->urlName);
488:
489: /* Start request with new credentials */
1.17 cvs 490: me->reqStatus = HT_NEW; /* reset the status */
1.7 cvs 491: if (me->method == METHOD_PUT || me->method == METHOD_POST) /* PUT, POST etc. */
492: status = HTLoadAbsolute (me->urlName, request);
493: else
494: HTLoadAnchor (new_anchor, request);
495: }
496: else
497: {
498: HTRequest_addError (request, ERR_FATAL, NO, HTERR_MAX_REDIRECT,
499: NULL, 0, "HTRedirectFilter");
500: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_REDIRECTIONS_LIMIT),
501: NULL);
502: if (me->error_html)
503: FilesLoading[me->docid] = 2; /* so we can show the error message */
504: }
1.4 cvs 505:
506: /*
1.7 cvs 507: ** By returning HT_ERROR we make sure that this is the last handler to be
508: ** called. We do this as we don't want any other filter to delete the
509: ** request object now when we have just started a new one ourselves
510: */
1.4 cvs 511: return HT_ERROR;
512: }
513:
1.5 cvs 514: /*----------------------------------------------------------------------
1.17 cvs 515: terminate_handler
516: this function is registered to handle the result of the request
1.5 cvs 517: ----------------------------------------------------------------------*/
1.4 cvs 518: #if __STDC__
1.7 cvs 519: static int terminate_handler (HTRequest * request, HTResponse * response, void *context, int status)
1.4 cvs 520: #else
521: static int terminate_handler (request, response, context, status)
522: HTRequest *request;
523: HTResponse *response;
524: void *context;
525: int status;
526: #endif
527: {
528: AHTReqContext *me = (AHTReqContext *) HTRequest_context (request);
1.13 cvs 529: boolean error_flag;
1.28 cvs 530: char msg_status[10];
531: HTError *error;
1.30 cvs 532: HTErrorElement errorElement;
1.29 cvs 533: HTList *cur;
1.4 cvs 534:
535: if (!me)
536: return HT_OK; /* not an Amaya request */
537:
1.24 cvs 538: if (!AmayaIsAlive)
539: me->reqStatus = HT_ABORT;
540:
1.13 cvs 541: if (status == HT_LOADED || status == HT_CREATED || status == HT_NO_DATA)
542: error_flag = FALSE;
543: else
544: error_flag = TRUE;
545:
1.4 cvs 546: /* output any errors from the server */
547:
1.5 cvs 548: /***
1.4 cvs 549: ** me->output = output file which will receive an html file
550: ** me->error_html = yes, output HTML errors in the screen
551: ** request->error_stack == if there are any errors, they will be here
552: ** me->error_stream_size If it's != 0 means an error message has already
553: ** been written to the stack
554: */
555:
556: /* First, we verify if there are any errors and if they are not
1.17 cvs 557: ** yet written to the error stack. If no, then let's try to write them
558: ** ourselves
559: */
1.4 cvs 560:
1.7 cvs 561: if (me->output && me->output != stdout)
562: {
563: /* we are writing to a file */
564: if (me->reqStatus != HT_ABORT)
565: { /* if the request was not aborted and */
1.13 cvs 566: if (error_flag)
567: { /* there were some errors */
1.15 cvs 568: if (me->error_html == TRUE)
1.13 cvs 569: { /* and we want to print errors */
570: if (me->error_stream_size == 0) /* and the stream is empty */
1.7 cvs 571: AHTError_MemPrint (request); /* copy errors from the error stack
572: ** into a data structure */
573: if (me->error_stream)
574: { /* if the stream is non-empty */
575: fprintf (me->output, me->error_stream); /* output the errors */
1.13 cvs 576: error_flag = FALSE; /* show it in the HTML window */
1.7 cvs 577: }
578: else
579: me->reqStatus = HT_ERR; /* we did not get an error msg,
580: ** so just
581: ** mark error
582: */
583: }
584: else
585: me->reqStatus = HT_ERR; /* we don't want to print the error */
586: } /* if error_stack */
1.13 cvs 587: } /* if != HT_ABORT */
1.7 cvs 588: fclose (me->output);
589: }
590: else
591: {
592: /* We must be doing a PUT. Verify if there was an error */
1.13 cvs 593: if (error_flag)
594: me->reqStatus = HT_ERR;
1.7 cvs 595: } /* if me-output */
596:
1.17 cvs 597: /* Second Step: choose a correct treatment in function of the request's
598: being associated with an error, with an interruption, or with a
599: succesful completion */
1.7 cvs 600:
1.13 cvs 601: if (!error_flag && me->reqStatus != HT_ERR
1.7 cvs 602: && me->reqStatus != HT_ABORT)
603: {
604: me->reqStatus = HT_END; /* no errors */
605: if (me->terminate_cbf)
606: (*me->terminate_cbf) ((AHTReqContext *) me,
607: HT_LOADED);
608: }
609: else if (me->reqStatus == HT_ABORT)
1.21 cvs 610: /* either the application ended or the user pressed the stop
611: button. We erase the incoming file, if it exists */
1.7 cvs 612: {
613: if (me->outputfile && me->outputfile[0] != EOS)
614: {
1.9 cvs 615: TtaFileUnlink (me->outputfile);
1.7 cvs 616: me->outputfile[0] = EOS;
617: }
618: }
619: else if (me->reqStatus == HT_ERR)
620: {
621: /* there was an error */
622: if (me->terminate_cbf)
623: (*me->terminate_cbf) ((AHTReqContext *) me,
624: HT_ERROR);
625:
626: if (me->outputfile && me->outputfile[0] != EOS)
627: {
1.9 cvs 628: TtaFileUnlink (me->outputfile);
1.7 cvs 629: me->outputfile[0] = EOS;
630: }
1.4 cvs 631: }
1.13 cvs 632: else if (error_flag &&
1.7 cvs 633: (me->reqStatus == HT_BUSY || me->reqStatus == HT_WAITING))
634: {
635: /* there was an error */
636: if (me->terminate_cbf)
637: (*me->terminate_cbf) ((AHTReqContext *) me,
638: HT_ERROR);
639:
640: if (me->outputfile && me->outputfile[0] != EOS)
641: {
1.9 cvs 642: TtaFileUnlink (me->outputfile);
1.7 cvs 643: me->outputfile[0] = EOS;
644: me->reqStatus = HT_ERR;
645: }
646: } /* if-else HT_END, HT_ABORT, HT_ERROR */
1.4 cvs 647:
1.7 cvs 648: if ((me->mode & AMAYA_ASYNC) || (me->mode & AMAYA_IASYNC))
1.17 cvs 649: /* for the ASYNC mode, free the memory we allocated in GetObjectWWW
650: or in PutObjectWWW */
1.7 cvs 651: {
652: TtaFreeMemory (me->urlName);
1.21 cvs 653: me->urlName = NULL;
1.7 cvs 654: TtaFreeMemory (me->outputfile);
1.21 cvs 655: me->outputfile = NULL;
1.7 cvs 656: }
1.17 cvs 657:
1.4 cvs 658: /* don't remove or Xt will hang up during the put */
659:
1.28 cvs 660: if (AmayaIsAlive && ((me->method == METHOD_POST) ||
661: (me->method == METHOD_PUT)))
1.7 cvs 662: {
1.28 cvs 663: /* output the status of the request */
664: if (status == 200)
665: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_REQUEST_SUCCEEDED), me->urlName);
666: else if (status == 201)
667: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_CREATED_NEW_REMOTE_RESSOURCE), me->urlName);
668: else if (status == 204 && me->method == METHOD_PUT)
669: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_UPDATED_REMOTE_RESSOURCE), me->urlName);
670: else if (status == 204 && me->method == METHOD_PUT)
671: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_NO_DATA), (char *) NULL);
672: else if (status == -400 || status == 505)
673: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_SERVER_DID_NOT_UNDERSTAND_REQ_SYNTAX), (char *) NULL);
674: else if (status == -401)
675: TtaSetStatus (me->docid, 1,
676: TtaGetMessage (AMAYA, AM_AUTHENTICATION_FAILURE), me->urlName);
677: else if (status == -403)
678: TtaSetStatus (me->docid, 1,
679: TtaGetMessage (AMAYA, AM_FORBIDDEN_ACCESS), me->urlName);
680: else if (status == -405)
681: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_METHOD_NOT_ALLOWED), (char *) NULL);
682: else if (status == -1)
683: {
1.30 cvs 684: /*
685: ** Here we deal with errors for which libwww does not
686: ** return a correct status code
687: */
1.29 cvs 688: cur = HTRequest_error (request);
689: error = (HTError *) HTList_nextObject (cur);
1.30 cvs 690: errorElement = error->element;
691: if (errorElement == HTERR_NOT_IMPLEMENTED)
1.28 cvs 692: {
1.30 cvs 693: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_SERVER_NOT_IMPLEMENTED_501_ERROR), (char *) NULL);
694: status = -501;
695: }
696: else if (errorElement == HTERR_INTERNAL)
697: {
1.31 ! cvs 698: if ((error->length > 0) && (error->length <= 25) &&
1.30 cvs 699: (error->par) && (((char *) error->par)[0] != EOS))
700: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_SERVER_INTERNAL_ERROR_500_CAUSE), (char *) (error->par));
701: else
702: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_SERVER_INTERNAL_ERROR_500_NO_CAUSE), (char *) NULL);
1.28 cvs 703: status = -500;
704: }
1.30 cvs 705: else
706: {
707: sprintf (msg_status, "%d", status);
708: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_UNKNOWN_XXX_STATUS), msg_status);
709: }
1.28 cvs 710: }
1.7 cvs 711: }
1.4 cvs 712: return HT_OK;
713: }
714:
1.5 cvs 715: /*----------------------------------------------------------------------
1.17 cvs 716: AHTLoadTerminate_handler
717: this is an application "AFTER" Callback. It uses all the functionaly
1.27 cvs 718: that the app part of the Library gives for handling AFTER a request.
1.5 cvs 719: ----------------------------------------------------------------------*/
1.4 cvs 720:
721: #ifdef __STDC__
1.7 cvs 722: static int AHTLoadTerminate_handler (HTRequest * request, HTResponse * response, void *param, int status)
1.4 cvs 723: #else
724: static int AHTLoadTerminate_handler (request, response, param, status)
725: HTRequest *request;
726: HTResponse *response;
727: void *param;
728: int status;
729:
730: #endif
731: {
732: char *uri = HTAnchor_address ((HTAnchor *) request->anchor);
733: AHTReqContext *me = HTRequest_context (request);
734: HTAlertCallback *cbf;
735: AHTDocId_Status *docid_status;
736:
1.7 cvs 737: switch (status)
738: {
739: case HT_LOADED:
740: if (PROT_TRACE)
741: HTTrace ("Load End.... OK: `%s\' has been accessed\n",
1.4 cvs 742: uri);
743:
1.7 cvs 744: docid_status = GetDocIdStatus (me->docid,
745: Amaya->docid_status);
746:
747: if (docid_status != NULL && docid_status->counter > 1)
748: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA,
749: AM_ELEMENT_LOADED), uri);
750:
751: break;
752:
753: case HT_NO_DATA:
754: if (PROT_TRACE)
755: HTTrace ("Load End.... OK BUT NO DATA: `%s\'\n", uri);
756: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_LOADED_NO_DATA),
757: uri);
758: break;
759:
760: case HT_INTERRUPTED:
761: if (PROT_TRACE)
762: HTTrace ("Load End.... INTERRUPTED: `%s\'\n", uri);
763: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_LOAD_ABORT), NULL);
764:
765: break;
766:
767: case HT_RETRY:
768: if (PROT_TRACE)
769: HTTrace ("Load End.... NOT AVAILABLE, RETRY AT %ld\n",
770: HTResponse_retryTime (response));
771: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_NOT_AVAILABLE_RETRY),
772: uri);
773: break;
774:
775: case HT_ERROR:
776:
777: cbf = HTAlert_find (HT_A_MESSAGE);
778: if (cbf)
779: (*cbf) (request, HT_A_MESSAGE, HT_MSG_NULL, NULL,
780: HTRequest_error (request), NULL);
781: break;
782:
783: if (PROT_TRACE)
784: HTTrace ("Load End.... ERROR: Can't access `%s\'\n",
785: uri ? uri : "<UNKNOWN>");
786: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_CANNOT_LOAD),
787: uri ? uri : "<UNKNOWN>");
788: break;
789: default:
790: if (PROT_TRACE)
791: HTTrace ("Load End.... UNKNOWN RETURN CODE %d\n", status);
792: break;
793: }
794:
1.4 cvs 795: HT_FREE (uri);
1.7 cvs 796:
1.4 cvs 797: return HT_OK;
798: }
799:
1.27 cvs 800: /*----------------------------------------------------------------------
801: AHTAcceptTypesInit
802: ----------------------------------------------------------------------*/
803: #ifdef __STDC__
804: static void AHTAcceptTypesInit (HTList *c)
805: #else /* __STDC__ */
806: static void AHTAcceptTypesInit (c)
807: HTList *c;
808: #endif /* __STDC__ */
809: {
810: if (c == (HTList *) NULL)
811: return;
812:
813: /* define here all the mime types that Amaya can accept */
814:
815: HTConversion_add (c, "image/png", "www/present", HTThroughLine, 1.0, 0.0, 0.0);
816: HTConversion_add (c, "image/jpeg", "www/present", HTThroughLine, 1.0, 0.0, 0.0);
817: HTConversion_add (c, "image/gif", "www/present", HTThroughLine, 1.0, 0.0, 0.0);
818: HTConversion_add (c, "image/xbm", "www/present", HTThroughLine, 1.0, 0.0, 0.0);
819: HTConversion_add (c, "image/xpm", "www/present", HTThroughLine, 1.0, 0.0, 0.0);
820: HTConversion_add (c, "application/postscript", "www/present", HTThroughLine, 1.0, 0.0, 0.0);
1.4 cvs 821:
1.27 cvs 822: /* Define here the equivalences between MIME types and file extensions for
823: the types that Amaya can display */
824:
825: /* Register the default set of file suffix bindings */
826: HTFileInit ();
827:
828: /* Don't do any case distinction */
829: HTBind_caseSensitive (FALSE);
830: }
1.4 cvs 831:
1.5 cvs 832: /*----------------------------------------------------------------------
1.17 cvs 833: AHTConverterInit
834: Bindings between a source media type and a destination media type
835: (conversion).
1.5 cvs 836: ----------------------------------------------------------------------*/
1.15 cvs 837: #ifdef __STDC__
838: static void AHTConverterInit (HTList *c)
839: #else /* __STDC__ */
840: static void AHTConverterInit (c)
841: HTList *c;
842: #endif /* __STDC__ */
1.4 cvs 843: {
844:
845: /* Handler for custom http error messages */
1.7 cvs 846: HTConversion_add (c, "*/*", "www/debug", AHTMemConverter, 1.0, 0.0, 0.0);
1.4 cvs 847:
848: /*
849: ** These are converters that converts to something other than www/present,
850: ** that is not directly outputting someting to the user on the screen
851: */
852:
853: HTConversion_add (c, "message/rfc822", "*/*", HTMIMEConvert, 1.0, 0.0, 0.0);
854: HTConversion_add (c, "message/x-rfc822-foot", "*/*", HTMIMEFooter,
855: 1.0, 0.0, 0.0);
856: HTConversion_add (c, "message/x-rfc822-head", "*/*", HTMIMEHeader,
857: 1.0, 0.0, 0.0);
858: HTConversion_add (c, "multipart/*", "*/*", HTBoundary,
859: 1.0, 0.0, 0.0);
860: HTConversion_add (c, "text/plain", "text/html", HTPlainToHTML,
861: 1.0, 0.0, 0.0);
862:
863:
864: /*
865: ** The following conversions are converting ASCII output from various
866: ** protocols to HTML objects.
867: */
868: HTConversion_add (c, "text/x-http", "*/*", HTTPStatus_new,
869: 1.0, 0.0, 0.0);
870: HTConversion_add (c, "text/x-nntp-list", "*/*", HTNewsList,
871: 1.0, 0.0, 0.0);
872: HTConversion_add (c, "text/x-nntp-over", "*/*", HTNewsGroup,
873: 1.0, 0.0, 0.0);
874:
875:
876: /*
877: ** We also register a special content type guess stream that can figure out
878: ** the content type by reading the first bytes of the stream
879: */
880: HTConversion_add (c, "www/unknown", "*/*", HTGuess_new,
881: 1.0, 0.0, 0.0);
882:
883: /*
884: ** Register a persistent cache stream which can save an object to local
885: ** file
886: */
887: HTConversion_add (c, "www/cache", "*/*", HTCacheWriter,
888: 1.0, 0.0, 0.0);
889:
890: /*
891: ** This dumps all other formats to local disk without any further
892: ** action taken
893: */
894: HTConversion_add (c, "*/*", "www/present", HTSaveLocally,
895: 0.3, 0.0, 0.0);
896:
897: }
898:
1.27 cvs 899:
1.15 cvs 900: /*----------------------------------------------------------------------
1.17 cvs 901: AHTProtocolInit
902: Registers all amaya supported protocols.
1.15 cvs 903: ----------------------------------------------------------------------*/
1.4 cvs 904: static void AHTProtocolInit (void)
905: {
906:
1.17 cvs 907: /*
908: NB. Preemptive == YES = Blocking request
909: Non-preemptive == NO = Non-blocking request
910: */
1.4 cvs 911:
912: HTProtocol_add ("http", "buffered_tcp", NO, HTLoadHTTP, NULL);
913: /* HTProtocol_add ("http", "tcp", NO, HTLoadHTTP, NULL); */
914: HTProtocol_add ("file", "local", NO, HTLoadFile, NULL);
915: HTProtocol_add ("cache", "local", NO, HTLoadCache, NULL);
1.17 cvs 916: #if 0 /* experimental code */
1.4 cvs 917: HTProtocol_add ("telnet", "", YES, HTLoadTelnet, NULL);
918: HTProtocol_add ("tn3270", "", YES, HTLoadTelnet, NULL);
919: HTProtocol_add ("rlogin", "", YES, HTLoadTelnet, NULL);
920:
921: HTProtocol_add ("ftp", "tcp", NO, HTLoadFTP, NULL);
922: HTProtocol_add ("nntp", "tcp", NO, HTLoadNews, NULL);
923: HTProtocol_add ("news", "tcp", NO, HTLoadNews, NULL);
1.17 cvs 924: #endif
1.4 cvs 925: }
926:
1.15 cvs 927: /*----------------------------------------------------------------------
1.17 cvs 928: AHTNetInit
929: Reegisters "before" and "after" request filters.
1.15 cvs 930: ----------------------------------------------------------------------*/
1.4 cvs 931: static void AHTNetInit (void)
932: {
933:
934: /* Register BEFORE filters
935: ** The BEFORE filters handle proxies, caches, rule files etc.
936: ** The filters are called in the order by which the are registered
937: ** Not done automaticly - may be done by application!
938: */
939:
940:
1.7 cvs 941: /*#ifndef HACK_WWW */
942: HTNet_addBefore (HTCredentialsFilter, "http://*", NULL, 6);
943: HTNet_addBefore (HTProxyFilter, NULL, NULL, 10);
1.4 cvs 944:
1.7 cvs 945: /*#endif */
1.4 cvs 946:
947: /* register AFTER filters
948: ** The AFTER filters handle error messages, logging, redirection,
949: ** authentication etc.
950: ** The filters are called in the order by which the are registered
951: ** Not done automaticly - may be done by application!
952: */
953:
954: #ifndef HACK_WWW
955:
1.7 cvs 956: HTNet_addAfter (HTAuthFilter, "http://*", NULL, HT_NO_ACCESS,
957: 5);
1.4 cvs 958:
1.7 cvs 959: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_TEMP_REDIRECT,
960: 5);
961: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_PERM_REDIRECT,
962: 5);
963: HTNet_addAfter (HTUseProxyFilter, "http://*", NULL, HT_USE_PROXY,
964: 5);
1.4 cvs 965:
1.7 cvs 966: HTNet_addAfter (AHTLoadTerminate_handler, NULL, NULL, HT_ALL, HT_FILTER_LAST); /* handles all errors */
967: HTNet_addAfter (terminate_handler, NULL, NULL, HT_ALL, HT_FILTER_LAST);
1.4 cvs 968: #endif
969: }
970:
1.15 cvs 971: /*----------------------------------------------------------------------
1.17 cvs 972: AHTAlertInit
973: Register alert messages and their callbacks.
1.15 cvs 974: ----------------------------------------------------------------------*/
975: #ifdef __STDC__
976: static void AHTAlertInit (void)
977: #else
978: static void AHTAlertInit ()
979: #endif
980: {
981:
982: HTAlert_add (AHTProgress, HT_A_PROGRESS);
983: HTAlert_add ((HTAlertCallback *) Add_NewSocket_to_Loop, HT_PROG_CONNECT);
984: HTAlert_add (AHTError_print, HT_A_MESSAGE);
1.28 cvs 985: HTError_setShow (~((int) 0 ) & ~((int) HT_ERR_SHOW_DEBUG)); /* process all messages except debug ones*/
1.15 cvs 986: HTAlert_add (AHTConfirm, HT_A_CONFIRM);
987: HTAlert_add (AHTPrompt, HT_A_PROMPT);
988: HTAlert_add (AHTPromptPassword, HT_A_SECRET);
989: HTAlert_add (AHTPromptUsernameAndPassword, HT_A_USER_PW);
990: }
991:
992: /*----------------------------------------------------------------------
1.17 cvs 993: AHTProfile_newAmaya
994: creates the Amaya client profile for libwww.
1.15 cvs 995: ----------------------------------------------------------------------*/
996: #ifdef __STDC__
997: static void AHTProfile_newAmaya (char *AppName, char *AppVersion)
998: #else /* __STDC__ */
999: static void AHTProfile_newAmaya (AppName, AppVersion)
1000: char *AppName;
1001: char *AppVersion;
1002: #endif /* __STDC__ */
1.4 cvs 1003: {
1004: /* If the Library is not already initialized then do it */
1005: if (!HTLib_isInitialized ())
1006: HTLibInit (AppName, AppVersion);
1007:
1008: if (!converters)
1009: converters = HTList_new ();
1.27 cvs 1010: if (!acceptTypes)
1011: acceptTypes = HTList_new ();
1.4 cvs 1012: if (!encodings)
1013: encodings = HTList_new ();
1014:
1015: /* Register the default set of transport protocols */
1016: HTTransportInit ();
1017:
1018: /* Register the default set of application protocol modules */
1019: #ifndef HACK_WWW
1020: AHTProtocolInit ();
1021: #endif
1022:
1023: /* Enable the persistent cache */
1024: /* HTCacheInit (NULL, 20); */
1025:
1026: /* Register the default set of BEFORE and AFTER filters */
1027: AHTNetInit ();
1028:
1029: /* Set up the default set of Authentication schemes */
1030: HTAAInit ();
1031:
1032: /* Get any proxy or gateway environment variables */
1033: HTProxy_getEnvVar ();
1034:
1035: /* Register the default set of converters */
1036: AHTConverterInit (converters);
1.27 cvs 1037: AHTAcceptTypesInit (acceptTypes);
1.4 cvs 1038: HTFormat_setConversion (converters);
1039:
1040: /* Register the default set of transfer encoders and decoders */
1041: HTEncoderInit (encodings); /* chunks ??? */
1042: HTFormat_setTransferCoding (encodings);
1043:
1044: /* Register the default set of MIME header parsers */
1045: HTMIMEInit (); /* must be called again for language selector */
1046:
1047: /* Register the default set of Icons for directory listings */
1.27 cvs 1048: /*HTIconInit(NULL); *//* experimental */
1.4 cvs 1049:
1050: /* Register the default set of messages and dialog functions */
1051: AHTAlertInit ();
1052: HTAlert_setInteractive (YES);
1053: }
1054:
1.5 cvs 1055: /*----------------------------------------------------------------------
1.17 cvs 1056: AHTProfile_delete
1057: deletes the Amaya client profile.
1.5 cvs 1058: ----------------------------------------------------------------------*/
1.4 cvs 1059: #ifdef __STDC__
1060: static void AHTProfile_delete (void)
1061: #else
1062: static void AHTProfile_delete ()
1.7 cvs 1063: #endif /* __STDC__ */
1.4 cvs 1064: {
1.22 cvs 1065:
1066: /* free the Amaya global context */
1.27 cvs 1067: if (!converters)
1068: HTConversion_deleteAll (converters);
1069: if (!acceptTypes)
1070: HTConversion_deleteAll (acceptTypes);
1071: if (!encodings)
1072: HTCoding_deleteAll (encodings);
1073:
1074: HTList_delete (Amaya->docid_status);
1075: HTList_delete (Amaya->reqlist);
1076: TtaFreeMemory (Amaya);
1.22 cvs 1077:
1078: if (HTLib_isInitialized ())
1079: {
1080:
1081: /* Clean up the persistent cache (if any) */
1082: HTCacheTerminate ();
1.4 cvs 1083:
1.22 cvs 1084: /* Clean up all the global preferences */
1085: HTFormat_deleteAll ();
1.4 cvs 1086:
1.22 cvs 1087: /* Terminate libwww */
1088: HTLibTerminate ();
1089: }
1.4 cvs 1090: }
1091:
1.5 cvs 1092: /*----------------------------------------------------------------------
1.17 cvs 1093: QueryInit
1094: initializes the libwww interface
1.5 cvs 1095: ----------------------------------------------------------------------*/
1.4 cvs 1096: #ifdef __STDC__
1097: void QueryInit ()
1098: #else
1099: void QueryInit ()
1100: #endif
1101: {
1102:
1.24 cvs 1103: AmayaIsAlive = TRUE;
1.4 cvs 1104: AHTProfile_newAmaya (HTAppName, HTAppVersion);
1105:
1106: /* New AHTBridge stuff */
1107:
1108: HTEvent_setRegisterCallback (AHTEvent_register);
1109: HTEvent_setUnregisterCallback (AHTEvent_unregister);
1110:
1111: /* Setup authentication manager */
1112: /***
1113: HTAuthCall_add("basic", HTBasic_parse, HTBasic_generate, HTBasic_delete);
1114: ****/
1115:
1116: /* Trace activation (for debugging) */
1.7 cvs 1117: /*
1.4 cvs 1118: WWW_TraceFlag = SHOW_APP_TRACE | SHOW_UTIL_TRACE |
1119: SHOW_BIND_TRACE | SHOW_THREAD_TRACE |
1120: SHOW_STREAM_TRACE | SHOW_PROTOCOL_TRACE |
1121: SHOW_URI_TRACE | SHOW_AUTH_TRACE | SHOW_ANCHOR_TRACE |
1122: SHOW_CORE_TRACE;
1123:
1.7 cvs 1124: */
1.4 cvs 1125:
1126: /***
1127: WWW_TraceFlag = SHOW_CORE_TRACE | SHOW_AUTH_TRACE | SHOW_ANCHOR_TRACE |
1128: SHOW_PROTOCOL_TRACE| SHOW_APP_TRACE | SHOW_UTIL_TRACE;
1129: ***/
1130:
1131: /* Setting up other user interfaces */
1132: /* needs a little bit more work */
1133:
1134: /* Setting up handlers */
1135: #ifndef HACK_WWW
1136: /* HTNetCall_addBefore(HTLoadStart, NULL, 0); */
1137: #endif
1138:
1139: /* Setting up different network parameters */
1.17 cvs 1140: /* Maximum number of simultaneous open sockets */
1.4 cvs 1141: HTNet_setMaxSocket (8);
1142: HTDNS_setTimeout (3600);
1.17 cvs 1143: /* Cache is disabled in this version */
1.4 cvs 1144: HTCacheMode_setEnabled (0);
1145:
1146: /* Initialization of the global context */
1147: Amaya = (AmayaContext *) TtaGetMemory (sizeof (AmayaContext));
1148: Amaya->reqlist = HTList_new ();
1149: Amaya->docid_status = HTList_new ();
1150: Amaya->open_requests = 0;
1151:
1152: #ifdef CATCH_SIG
1.18 cvs 1153: signal (SIGPIPE, SIG_IGN);
1.4 cvs 1154: #endif
1.15 cvs 1155: }
1156:
1157:
1158: /*----------------------------------------------------------------------
1.17 cvs 1159: LoopForStop
1160: a copy of the Thop event loop so we can handle the stop button.
1.15 cvs 1161: ----------------------------------------------------------------------*/
1162: #ifdef __STDC__
1163: static int LoopForStop (AHTReqContext * me)
1164: #else
1165: static int LoopForStop (AHTReqContext * me)
1166: #endif
1167: {
1168:
1169: #ifdef WWW_XWINDOWS
1.25 cvs 1170: extern ThotAppContext app_cont;
1.15 cvs 1171: XEvent ev;
1172: XtInputMask status;
1173:
1174: #endif /* WWW_XWINDOWS */
1.17 cvs 1175: int status_req = HT_OK;
1.15 cvs 1176:
1177: /* to test the async calls */
1.17 cvs 1178: /* Loop while waiting for new events, exists when the request is over */
1.15 cvs 1179: while (me->reqStatus != HT_ABORT &&
1180: me->reqStatus != HT_END &&
1181: me->reqStatus != HT_ERR)
1182: {
1183:
1184: #ifdef WWW_XWINDOWS
1.27 cvs 1185: if (!AmayaIsAlive)
1186: /* Amaya was killed by one of the callback handlers */
1187: exit (0);
1188:
1.15 cvs 1189: status = XtAppPending (app_cont);
1190: if (status & XtIMXEvent)
1191: {
1192: XtAppNextEvent (app_cont, &ev);
1193: TtaHandleOneEvent (&ev);
1194: }
1195: else if (status & (XtIMAll & (~XtIMXEvent)))
1196: {
1197: XtAppProcessEvent (app_cont,
1198: (XtIMAll & (~XtIMXEvent)));
1199: }
1200: else
1201: {
1202: XtAppNextEvent (app_cont, &ev);
1203: TtaHandleOneEvent (&ev);
1204: }
1205: #endif /* WWW_XWINDOWS */
1206: }
1207:
1208: switch (me->reqStatus)
1209: {
1.4 cvs 1210:
1.15 cvs 1211: case HT_ERR:
1212: case HT_ABORT:
1213: status_req = HT_ERROR;
1214: break;
1215:
1216: case HT_END:
1217: status_req = HT_OK;
1218: break;
1219:
1220: default:
1221: break;
1222: }
1.12 cvs 1223:
1.15 cvs 1224: return (status_req);
1.4 cvs 1225: }
1226:
1227:
1.5 cvs 1228: /*----------------------------------------------------------------------
1.15 cvs 1229: QueryClose
1.21 cvs 1230: closes all existing threads, frees all non-automatically deallocated
1231: memory and then ends libwww.
1.5 cvs 1232: ----------------------------------------------------------------------*/
1.4 cvs 1233: void QueryClose ()
1234: {
1.24 cvs 1235:
1236: AmayaIsAlive = FALSE;
1237:
1.21 cvs 1238: /* remove all the handlers and callbacks that may output a message to
1239: a non-existent Amaya window */
1240:
1241: HTNet_deleteAfter (AHTLoadTerminate_handler);
1242: HTNet_deleteAfter (redirection_handler);
1243: HTAlertCall_deleteAll (HTAlert_global () );
1.23 cvs 1244: HTAlert_setGlobal ((HTList *) NULL);
1.24 cvs 1245: HTEvent_setRegisterCallback ((HTEvent_registerCallback *) NULL);
1.27 cvs 1246: HTEvent_setUnregisterCallback ((HTEvent_unregisterCallback *) NULL);
1.21 cvs 1247:
1.4 cvs 1248: Thread_deleteAll ();
1.21 cvs 1249:
1.4 cvs 1250: #ifndef HACK_WWW
1251: /** HTAuthInfo_deleteAll (); **/
1252: #endif
1253: HTProxy_deleteAll ();
1254: HTNoProxy_deleteAll ();
1255: HTGateway_deleteAll ();
1256: AHTProfile_delete ();
1257: }
1258:
1259:
1.5 cvs 1260: /*----------------------------------------------------------------------
1.15 cvs 1261: GetObjectWWW
1.17 cvs 1262: this function requests a resource designated by a URLname into a
1263: temporary filename. The download can come from a simple GET operation,
1264: or can come from POSTING/GETTING a form. In the latter
1265: case, the function receives a query string to send to the server.
1266:
1.5 cvs 1267: 4 file retrieval modes are proposed:
1268: AMAYA_SYNC : blocking mode
1269: AMAYA_ISYNC : incremental, blocking mode
1270: AMAYA_ASYNC : non-blocking mode
1271: AMAYA_IASYNC : incremental, non-blocking mode
1272:
1273: In the incremental mode, each time a package arrives, it will be
1274: stored in the temporary file. In addition, if an
1275: incremental_callback function is defined, this function will be
1276: called and handled a copy of the newly received data package.
1277: Finally, if a terminate_callback function is defined, it will be
1278: invoked when the request terminates. The caller of this function
1.4 cvs 1279: can define two different contexts to be passed to the callback
1280: functions.
1281:
1282: When the function is called with the SYNC mode, the function will
1283: return only when the requested file has been loaded.
1284: The ASYNC mode will immediately return after setting up the
1285: call.
1286:
1287: Notes:
1288: At the end of a succesful request, the urlName string contains the
1289: name of the actually retrieved URL. As a URL can change over the time,
1290: (e.g., be redirected elsewhere), it is advised that the function
1.17 cvs 1291: caller verify the value of the urlName variable at the end of
1.4 cvs 1292: a request.
1293:
1294: Inputs:
1295: - docid Document identifier for the set of objects being
1296: retrieved.
1297: - urlName The URL to be retrieved (MAX_URL_LENGTH chars length)
1298: - outputfile A pointer to an empty string of MAX_URL_LENGTH.
1299: - mode The retrieval mode.
1300: - incremental_cbf
1301: - context_icbf
1302: Callback and context for the incremental modes
1303: - terminate_cbf
1304: - context_icbf
1305: Callback and context for a terminate handler
1.17 cvs 1306: -error_html if TRUE, then display any server error message as an
1307: HTML document.
1.4 cvs 1308:
1309: Outputs:
1310: - urlName The URL that was retrieved
1311: - outputfile The name of the temporary file which holds the
1312: retrieved data. (Only in case of success)
1313: Returns:
1314: HT_ERROR
1315: HT_OK
1.5 cvs 1316:
1317: ----------------------------------------------------------------------*/
1.4 cvs 1318: #ifdef __STDC__
1319: int GetObjectWWW (int docid, char *urlName, char *postString,
1320: char *outputfile, int mode,
1321: TIcbf * incremental_cbf, void *context_icbf,
1.15 cvs 1322: TTcbf * terminate_cbf, void *context_tcbf, boolean error_html)
1.4 cvs 1323: #else
1324: int GetObjectWWW (docid, urlName, postString, outputfile, mode,
1325: incremental_cbf, context_icbf, terminate_cbf, context_tcbf,
1326: error_html)
1327: int docid;
1328: char *urlName;
1329: char *postString;
1330: char *outputfile;
1331: int mode;
1332: TIcbf *incremental_cbf;
1333: void *context_icbf;
1334: TTcbf *terminate_cbf;
1335: void *context_tcbf;
1.15 cvs 1336: boolean error_html;
1.4 cvs 1337: #endif
1338: {
1339: AHTReqContext *me;
1340:
1341: FILE *tmp_fp;
1342: char *tmp_dir;
1343: char *ref;
1344: int status;
1345: HTList *cur, *pending;
1.7 cvs 1346:
1347: if (urlName == NULL || docid == 0 || outputfile == NULL)
1348: {
1349: /* no file to be loaded */
1350: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_BAD_URL),
1351: urlName);
1352:
1353: if (error_html)
1354: FilesLoading[docid] = 2; /* so we can show the error message */
1355: return HT_ERROR;
1.4 cvs 1356:
1.7 cvs 1357: }
1.4 cvs 1358: /* do we support this protocol? */
1.7 cvs 1359: if (IsValidProtocol (urlName) == NO)
1360: {
1361: /* return error */
1362: outputfile[0] = EOS; /* file could not be opened */
1363: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_GET_UNSUPPORTED_PROTOCOL),
1364: urlName);
1365:
1366: if (error_html)
1367: FilesLoading[docid] = 2; /* so we can show the error message */
1368: return HT_ERROR;
1369: }
1.4 cvs 1370:
1371: /* verify if a docid directory exists */
1372:
1373: tmp_dir = TtaGetMemory (strlen (TempFileDirectory) + 5 + 1);
1374: sprintf (tmp_dir, "%s/%d", TempFileDirectory, docid);
1375:
1376: tmp_fp = fopen (tmp_dir, "r");
1.7 cvs 1377: if (tmp_fp == 0)
1378: {
1379: /*directory did not exist */
1380: if (mkdir (tmp_dir, S_IRWXU) == -1)
1381: {
1382: /*error */
1383: outputfile[0] = EOS;
1384: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_CACHE_ERROR),
1385: urlName);
1386:
1387: if (error_html)
1388: FilesLoading[docid] = 2; /* so we can show the error message */
1389:
1390: return HT_ERROR;
1391: }
1392: }
1393: else
1.4 cvs 1394: fclose (tmp_fp);
1395:
1396: /*create a tempfilename */
1397:
1398: sprintf (outputfile, "%s/%04dAM", tmp_dir, object_counter);
1399:
1400: TtaFreeMemory (tmp_dir);
1401:
1402: /* update the object_counter */
1403: object_counter++;
1404:
1405: /* normalize the URL */
1406: ref = HTParse (urlName, "", PARSE_ALL);
1407:
1408: /* should we abort the request if we could not normalize the url? */
1409:
1.7 cvs 1410: if (ref == (char *) NULL || ref[0] == EOS)
1411: {
1412: /*error */
1413: outputfile[0] = EOS;
1414: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_BAD_URL),
1415: urlName);
1.4 cvs 1416:
1.7 cvs 1417: if (error_html)
1418: FilesLoading[docid] = 2; /* so we can show the error message */
1.4 cvs 1419:
1.7 cvs 1420: return HT_ERROR;
1421: }
1.4 cvs 1422: /* verify if that file name existed */
1.9 cvs 1423: if (TtaFileExist (outputfile))
1.7 cvs 1424: {
1.9 cvs 1425: TtaFileUnlink (outputfile);
1.7 cvs 1426: }
1.4 cvs 1427:
1428: /* try to open the outputfile */
1429:
1.7 cvs 1430: if ((tmp_fp = fopen (outputfile, "w")) == NULL)
1431: {
1432: outputfile[0] = EOS; /* file could not be opened */
1433: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_CANNOT_CREATE_FILE),
1434: outputfile);
1435: HT_FREE (ref);
1436:
1437: if (error_html)
1438: FilesLoading[docid] = 2; /* so we can show the error message */
1439: return (HT_ERROR);
1440: }
1.4 cvs 1441:
1442: /* the terminate_handler closes the above open fp */
1443: /* Not anymore, we do that in the AHTCallback_bridge, as all
1444: requests are now asynchronous */
1445:
1446: /* Initialize the request structure */
1447:
1448: me = AHTReqContext_new (docid);
1449:
1.7 cvs 1450: if (me == NULL)
1451: {
1452: fclose (tmp_fp);
1453: outputfile[0] = EOS;
1454: /* need an error message here */
1455: HT_FREE (ref);
1456: return (HT_ERROR);
1457: }
1.4 cvs 1458:
1459:
1460: /* Specific initializations for POST and GET */
1.7 cvs 1461: if (mode & AMAYA_FORM_POST)
1462: {
1463: me->method = METHOD_POST;
1.20 cvs 1464: if (postString)
1465: {
1466: me->mem_ptr = postString;
1467: me->block_size = strlen (postString);
1468: }
1469: else
1470: {
1471: me->mem_ptr = "";
1472: me->block_size = 0;
1473: }
1.7 cvs 1474: HTRequest_setMethod (me->request, METHOD_POST);
1475: HTRequest_setPostCallback (me->request, AHTUpload_callback);
1476: }
1477: else
1478: {
1479: me->method = METHOD_GET;
1480: me->dest = (HTParentAnchor *) NULL; /*useful only for PUT and POST methods */
1.27 cvs 1481: if (!HasKnownFileSuffix (ref))
1482: HTRequest_setConversion(me->request, acceptTypes, TRUE);
1.7 cvs 1483: }
1.4 cvs 1484:
1485: /* Common initialization */
1486:
1487: me->mode = mode;
1488: me->error_html = error_html;
1489: me->incremental_cbf = incremental_cbf;
1490: me->context_icbf = context_icbf;
1491: me->terminate_cbf = terminate_cbf;
1492: me->context_tcbf = context_tcbf;
1493: me->output = tmp_fp;
1494:
1495: HTRequest_setOutputStream (me->request,
1496: AHTFWriter_new (me->request, me->output, YES));
1.7 cvs 1497:
1.4 cvs 1498:
1499: /*for the async. request modes, we need to have our
1500: own copy of outputfile and urlname
1501: */
1502:
1.7 cvs 1503: if ((mode & AMAYA_ASYNC) || (mode & AMAYA_IASYNC))
1504: {
1505: char *tmp;
1506:
1507: tmp = TtaGetMemory (strlen (outputfile) + 1);
1508: strcpy (tmp, outputfile);
1509: me->outputfile = tmp;
1510:
1.21 cvs 1511: tmp = TtaGetMemory (MAX_LENGTH + 1);
1512: strncpy (tmp, urlName, MAX_LENGTH);
1513: tmp[MAX_LENGTH] = EOS;
1.7 cvs 1514: me->urlName = tmp;
1515: }
1516: else
1517: {
1518: me->outputfile = outputfile;
1519: me->urlName = urlName;
1520: }
1.4 cvs 1521:
1522: /***
1523: Change for taking into account the stop button:
1524: The requests will be always asynchronous, however, if mode=AMAYA_SYNC,
1525: we will loop until the document has been received or a stop signal
1526: generated
1527: ****/
1528:
1529: HTRequest_setPreemptive (me->request, NO);
1530: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_FETCHING),
1531: me->urlName);
1532:
1533: me->anchor = (HTParentAnchor *) HTAnchor_findAddress (ref);
1534:
1535: HT_FREE (ref);
1536:
1.7 cvs 1537: if (mode & AMAYA_FORM_POST)
1538: {
1539: HTAnchor_setFormat ((HTParentAnchor *) me->anchor, HTAtom_for ("application/x-www-form-urlencoded"));
1540: HTAnchor_setLength ((HTParentAnchor *) me->anchor, me->block_size);
1541: HTRequest_setEntityAnchor (me->request, me->anchor);
1.4 cvs 1542:
1.7 cvs 1543: status = HTLoadAbsolute (urlName, me->request);
1544: }
1545: else
1.4 cvs 1546: status = HTLoadAnchor ((HTAnchor *) me->anchor,
1547: me->request);
1548:
1549: if (status == HT_ERROR || me->reqStatus == HT_END
1.7 cvs 1550: || me->reqStatus == HT_ERR)
1551: {
1552: /* in case of error, free all allocated memory and exit */
1553:
1.21 cvs 1554: if (me->output)
1555: fclose (me->output);
1556:
1.7 cvs 1557: if ((mode & AMAYA_ASYNC) || (mode & AMAYA_IASYNC))
1558: {
1.21 cvs 1559: if(me->outputfile)
1560: TtaFreeMemory (me->outputfile);
1561: if(me->urlName)
1562: TtaFreeMemory (me->urlName);
1.7 cvs 1563: }
1.4 cvs 1564:
1.27 cvs 1565: if (me->reqStatus == HT_ERR)
1566: {
1567: status = HT_ERROR;
1568: /* show an error message on the status bar */
1569: FilesLoading[me->docid] = 2;
1570: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_CANNOT_LOAD),
1571: me->urlName);
1572: }
1573: else
1574: status = HT_OK;
1.7 cvs 1575:
1576: AHTReqContext_delete (me);
1.27 cvs 1577: }
1.7 cvs 1578:
1579: else
1580: {
1581: /* part of the stop button handler */
1582:
1583: if ((mode & AMAYA_SYNC) || (mode & AMAYA_ISYNC))
1584: {
1585: status = LoopForStop (me);
1586: AHTReqContext_delete (me);
1587: }
1588: else
1589: {
1590:
1591: /* ASYNC MODE */
1592: /* if the request went to the pending events queue, then we close
1593: ** the file. It'll be open by AddEventLoop upon liberation of the
1594: ** queue
1.4 cvs 1595: */
1.7 cvs 1596:
1597: /* verify if this request went to the pending request queue */
1598:
1599: if ((cur = (HTList *) me->request->net->host->pending))
1600: while ((pending = HTList_nextObject (cur)))
1601: {
1602: if (me->request->net == (HTNet *) pending)
1603: {
1604: /* To correct: see if we can fine tune this request */
1605: if (me->reqStatus == HT_WAITING)
1606: break;
1607: me->reqStatus = HT_NEW_PENDING;
1608: /* the request went to the pending queue, so we close the fd to
1609: **avoid having many of them open without being used
1610: */
1611: if (THD_TRACE)
1612: fprintf (stderr, "GetObjectWWW: %s is pending. Closing fd %d\n", me->urlName, (int) me->output);
1.21 cvs 1613: /* free the allocated stream object */
1614: AHTFWriter_FREE (HTRequest_outputStream(me->request));
1615: HTRequest_setOutputStream (me->request, (HTStream *) NULL);
1.7 cvs 1616: fclose (me->output);
1617: me->output = NULL;
1618: break;
1619: }
1620: }
1621:
1.4 cvs 1622: }
1.7 cvs 1623: }
1.4 cvs 1624: TtaHandlePendingEvents ();
1625:
1626: return (status);
1627: }
1628:
1.5 cvs 1629: /*----------------------------------------------------------------------
1.17 cvs 1630: PutObjectWWW
1631: frontend for uploading a resource to a URL. This function downloads
1632: a file to be uploaded into memory, it then calls UploadMemWWW to
1633: finish the job.
1634:
1.5 cvs 1635: 2 upload modes are proposed:
1636: AMAYA_SYNC : blocking mode
1637: AMAYA_ASYNC : non-blocking mode
1638:
1.4 cvs 1639: When the function is called with the SYNC mode, the function will
1640: return only when the file has been uploaded.
1641: The ASYNC mode will immediately return after setting up the
1642: call. Furthermore, at the end of an upload, the ASYNC mode will
1643: call back terminate_cbf, handling it the context defined in
1644: context_tcbf.
1645:
1646: Notes:
1647: At the end of a succesful request, the urlName string contains the
1648: name of the actually uploaded URL. As a URL can change over the time,
1649: (e.g., be redirected elsewhere), it is advised that the function
1650: caller verifies the value of the urlName variable at the end of
1651: a request.
1652:
1653: Inputs:
1654: - docid Document identifier for the set of objects being
1655: retrieved.
1656: - fileName A pointer to the local file to upload
1657: - urlName The URL to be uploaded (MAX_URL_LENGTH chars length)
1658: - mode The retrieval mode.
1659: - terminate_cbf
1660: - context_icbf
1661: Callback and context for a terminate handler
1662:
1663: Outputs:
1664: - urlName The URL that was uploaded
1665:
1666: Returns:
1667: HT_ERROR
1668: HT_OK
1.5 cvs 1669: ----------------------------------------------------------------------*/
1.4 cvs 1670: #ifdef __STDC__
1.27 cvs 1671: int PutObjectWWW (int docid, char *fileName, char *urlName, int mode, PicType contentType,
1.4 cvs 1672: TTcbf * terminate_cbf, void *context_tcbf)
1673: #else
1.26 cvs 1674: int PutObjectWWW (docid, urlName, fileName, mode, contentType,
1.4 cvs 1675: ,terminate_cbf, context_tcbf)
1676: int docid;
1677: char *urlName;
1678: char *fileName;
1679: int mode;
1.27 cvs 1680: PicType contentType;
1.4 cvs 1681: TTcbf *terminate_cbf;
1682: void *context_tcbf;
1683:
1684: #endif
1685: {
1.7 cvs 1686: /*AHTReqContext *me; */
1.4 cvs 1687: int status;
1688:
1689: #ifdef WWW_XWINDOWS
1690: int fd;
1691: struct stat file_stat;
1692: char *mem_ptr;
1693: unsigned long block_size;
1694:
1695: if (urlName == NULL || docid == 0 || fileName == NULL ||
1.9 cvs 1696: !TtaFileExist (fileName))
1.4 cvs 1697: /* no file to be uploaded */
1698: return HT_ERROR;
1699:
1700: /* do we support this protocol? */
1.7 cvs 1701: if (IsValidProtocol (urlName) == NO)
1702: {
1703: /* return error */
1704: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_PUT_UNSUPPORTED_PROTOCOL),
1705: urlName);
1706: return HT_ERROR;
1707: }
1.4 cvs 1708: /* read the file into memory */
1709:
1.7 cvs 1710: if ((fd = open (fileName, O_RDONLY)) == -1)
1711: {
1712: /* if we could not open the file, exit */
1713: /*error msg here */
1714: return (HT_ERROR);
1715: }
1.4 cvs 1716:
1717: fstat (fd, &file_stat);
1718:
1.7 cvs 1719: if (file_stat.st_size == 0)
1720: {
1721: /* file was empty */
1722: /*errmsg here */
1723: close (fd);
1724: return (HT_ERROR);
1725: }
1.4 cvs 1726: block_size = file_stat.st_size;
1727:
1728: if (THD_TRACE)
1729: fprintf (stderr, "file size == %u\n", (unsigned) block_size);
1730:
1731: mem_ptr = (char *) TtaGetMemory (block_size);
1732:
1.7 cvs 1733: if (mem_ptr == (char *) NULL)
1734: {
1735: /* could not allocate enough memory */
1736: /*errmsg here */
1.4 cvs 1737:
1.7 cvs 1738: close (fd);
1739: return (HT_ERROR);
1740: }
1.4 cvs 1741: read (fd, mem_ptr, block_size);
1742:
1743: close (fd);
1744:
1.27 cvs 1745: status = UploadMemWWW (docid, METHOD_PUT, urlName, contentType, mem_ptr,
1.4 cvs 1746: block_size, mode, terminate_cbf,
1747: context_tcbf, (char *) NULL);
1748:
1749: TtaFreeMemory (mem_ptr);
1.28 cvs 1750: TtaHandlePendingEvents ();
1.4 cvs 1751:
1752: #endif /*WWW_XWINDOWS */
1753:
1754: return (status);
1755: }
1756:
1757:
1.5 cvs 1758: /*----------------------------------------------------------------------
1.17 cvs 1759: UploadMemWWW
1760: low level interface function to libwww for uploading a block of
1761: memory to a URL.
1.5 cvs 1762: ----------------------------------------------------------------------*/
1.4 cvs 1763: #ifdef __STDC__
1764: int UploadMemWWW (int docid, HTMethod method,
1.27 cvs 1765: char *urlName, PicType contentType, char *mem_ptr, unsigned long block_size,
1.4 cvs 1766: int mode, TTcbf * terminate_cbf, void *context_tcbf,
1767: char *outputfile)
1768: #else
1.27 cvs 1769: int UploadMemWWW (docid, method, urlName, contentType, mem_ptr, block_size, mode,
1.4 cvs 1770: terminate_cbf, context_tcbf, outputfile)
1771: int docid;
1772: HTMethod method;
1773: char *urlName;
1.27 cvs 1774: PicType contentType;
1.4 cvs 1775: char *mem_ptr;
1776: usigned long block_size;
1777: int mode;
1778: TTcbf *terminate_cbf;
1779: void *context_tcbf;
1780: char *outputfile;
1.7 cvs 1781:
1.4 cvs 1782: #endif
1783: {
1784: AHTReqContext *me;
1785: int status;
1786:
1787: if (mem_ptr == (char *) NULL ||
1788: block_size == 0 ||
1789: docid == 0 ||
1.7 cvs 1790: urlName == (char *) NULL)
1791: {
1792: /* nothing to be uploaded */
1793: return HT_ERROR;
1794: }
1.4 cvs 1795:
1796: /* Initialize the request structure */
1797: me = AHTReqContext_new (docid);
1798:
1.7 cvs 1799: if (me == NULL)
1800: {
1801: /* need an error message here */
1802: TtaHandlePendingEvents ();
1803: return (HT_ERROR);
1804: }
1.4 cvs 1805: me->mode = mode;
1806:
1807: me->incremental_cbf = (TIcbf *) NULL;
1808: me->context_icbf = (void *) NULL;
1809: me->terminate_cbf = terminate_cbf;
1810: me->context_tcbf = context_tcbf;
1811:
1812: me->output = stdout;
1813: me->outputfile = (char *) NULL;
1814: me->urlName = urlName;
1815:
1816: HTRequest_setPreemptive (me->request, NO);
1817:
1.17 cvs 1818: /* select the parameters that distinguish a PUT from a GET/POST */
1.4 cvs 1819: me->method = METHOD_PUT;
1820: HTRequest_setMethod (me->request, METHOD_PUT);
1821: me->output = stdout;
1.17 cvs 1822: /* we are not expecting to receive any input from the server */
1823: me->outputfile = (char *) NULL;
1.4 cvs 1824:
1825: me->mem_ptr = mem_ptr;
1826: me->block_size = block_size;
1.17 cvs 1827:
1828: /* set the callback which will actually copy data into the
1829: output stream */
1830:
1.4 cvs 1831: HTRequest_setPostCallback (me->request, AHTUpload_callback);
1832:
1833: HTRequest_setOutputStream (me->request,
1834: HTFWriter_new (me->request, me->output, YES));
1835:
1836: me->anchor = (HTParentAnchor *) HTAnchor_findAddress (urlName);
1.7 cvs 1837:
1.28 cvs 1838: /* Set the Content-Type of the file we are uploading */
1.27 cvs 1839: HTAnchor_setFormat ((HTParentAnchor *) me->anchor, AHTGuessAtom_for (me->urlName, contentType));
1.17 cvs 1840:
1.7 cvs 1841: HTAnchor_setLength ((HTParentAnchor *) me->anchor, me->block_size);
1.4 cvs 1842: HTRequest_setEntityAnchor (me->request, me->anchor);
1843: status = HTLoadAbsolute (urlName, me->request);
1844:
1.28 cvs 1845: if (status == HT_ERROR || me->reqStatus == HT_END || me->reqStatus == HT_ERR || HTError_hasSeverity (HTRequest_error (me->request), ERR_INFO))
1.7 cvs 1846: {
1.17 cvs 1847: status = HT_ERROR;
1848: AHTReqContext_delete (me);
1.28 cvs 1849: }
1.7 cvs 1850: else
1851: {
1852: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_REMOTE_SAVING),
1853: me->urlName);
1.4 cvs 1854:
1.7 cvs 1855: /* part of the stop button handler */
1.4 cvs 1856:
1.7 cvs 1857: if ((mode & AMAYA_SYNC) || (mode & AMAYA_ISYNC))
1858: {
1859: status = LoopForStop (me);
1860: AHTReqContext_delete (me);
1861: }
1.15 cvs 1862: }
1.4 cvs 1863: return (status);
1.28 cvs 1864: }
1.4 cvs 1865:
1866:
1867:
1.5 cvs 1868: /*----------------------------------------------------------------------
1.17 cvs 1869: Stop Request
1870: stops (kills) all active requests associated with a docid
1.5 cvs 1871: ----------------------------------------------------------------------*/
1.4 cvs 1872: #ifdef __STDC__
1873: void StopRequest (int docid)
1874: #else
1875: void StopRequest (docid)
1876: int docid;
1877: #endif
1878: {
1879: HTList *cur;
1880: AHTDocId_Status *docid_status;
1881: AHTReqContext *me;
1882: int open_requests;
1883:
1.7 cvs 1884: if (Amaya)
1885: {
1.4 cvs 1886:
1.7 cvs 1887: cur = Amaya->reqlist;
1888: docid_status = (AHTDocId_Status *) GetDocIdStatus (docid,
1.4 cvs 1889: Amaya->docid_status);
1890:
1.7 cvs 1891: /* verify if there are any requests at all associated with docid */
1.4 cvs 1892:
1.7 cvs 1893: if (docid_status == (AHTDocId_Status *) NULL)
1894: return;
1.4 cvs 1895:
1.7 cvs 1896: open_requests = docid_status->counter;
1.4 cvs 1897:
1.7 cvs 1898: while ((me = (AHTReqContext *) HTList_nextObject (cur)))
1899: {
1.4 cvs 1900:
1.7 cvs 1901: if (me->docid == docid)
1902: {
1903: /* kill this request */
1.4 cvs 1904:
1.7 cvs 1905: switch (me->reqStatus)
1906: {
1907: case HT_ABORT:
1908: break;
1.4 cvs 1909:
1.7 cvs 1910: case HT_BUSY:
1911: me->reqStatus = HT_ABORT;
1912: break;
1913: case HT_NEW_PENDING:
1914: case HT_WAITING:
1915: default:
1.4 cvs 1916: #ifdef WWW_XWINDOWS
1.7 cvs 1917: RequestKillAllXtevents (me);
1.4 cvs 1918: #endif
1.7 cvs 1919: me->reqStatus = HT_ABORT;
1920: HTRequest_kill (me->request);
1.4 cvs 1921:
1.7 cvs 1922: if (me->mode == AMAYA_ASYNC ||
1923: me->mode == AMAYA_IASYNC)
1924: {
1.4 cvs 1925:
1.7 cvs 1926: AHTReqContext_delete (me);
1927: }
1928: cur = Amaya->reqlist;
1.4 cvs 1929:
1.7 cvs 1930: open_requests--;
1.4 cvs 1931:
1.7 cvs 1932: break;
1.4 cvs 1933:
1.7 cvs 1934: } /* switch */
1935: } /* if me docid */
1936: } /* while */
1937: } /* if amaya open requests */
1.4 cvs 1938: } /* StopRequest */
1.17 cvs 1939:
1940:
1941: /*
1942: end of Module query.c
1943: */
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