Annotation of Amaya/amaya/query.c, revision 1.128
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: /*
1.83 cvs 9: * query.c : contains all the functions for requesting and publishing
1.19 cvs 10: * URLs via libwww. It handles any eventual HTTP error code
11: * (redirection, authentication needed, not found, etc.)
12: *
1.69 cvs 13: * Author: J. Kahan
1.92 cvs 14: * J. Kahan/R. Guetari Windows 95/NT routines
1.19 cvs 15: */
1.17 cvs 16:
1.44 cvs 17: #ifndef AMAYA_JAVA
18:
1.116 cvs 19: /* defines to include elsewhere
20: *********************************/
21:
1.124 cvs 22: #ifndef _WINDOWS
1.116 cvs 23: #define AMAYA_WWW_CACHE
1.124 cvs 24: #endif /* !_WINDOWS */
1.116 cvs 25:
1.128 ! cvs 26: #define CACHE_DIR_NAME DIR_STR"libwww-cache"
1.116 cvs 27: #define DEFAULT_CACHE_SIZE 5
28:
1.12 cvs 29: /* Amaya includes */
1.25 cvs 30: #define THOT_EXPORT extern
1.4 cvs 31: #include "amaya.h"
1.70 cvs 32: #ifdef _WINDOWS
33: #include <fcntl.h>
34: #endif /* _WINDOWS */
1.7 cvs 35:
1.4 cvs 36: #if defined(__svr4__)
37: #define CATCH_SIG
38: #endif
39:
40: /* local structures coming from libwww and which are
1.17 cvs 41: not found in any .h file
1.7 cvs 42: */
1.68 cvs 43:
1.7 cvs 44: struct _HTStream
45: {
1.15 cvs 46: const HTStreamClass *isa;
47: FILE *fp;
1.45 cvs 48: BOOL leave_open; /* Close file when TtaFreeMemory? */
1.15 cvs 49: char *end_command; /* Command to execute */
50: BOOL remove_on_close; /* Remove file? */
51: char *filename; /* Name of file */
52: HTRequest *request; /* saved for callback */
53: HTRequestCallback *callback;
1.7 cvs 54: };
55:
1.15 cvs 56:
1.7 cvs 57: struct _HTError
58: {
59: HTErrorElement element; /* Index number into HTError */
60: HTSeverity severity; /* A la VMS */
61: BOOL ignore; /* YES if msg should not go to user */
62: void *par; /* Explanation, e.g. filename */
63: int length; /* For copying by generic routine */
64: char *where; /* Which function */
65: };
66:
1.4 cvs 67: /* Type definitions and global variables etc. local to this module */
68:
1.17 cvs 69: /*----------------------------------------------------------------------*/
70:
1.4 cvs 71: /*** private variables ***/
1.17 cvs 72:
1.4 cvs 73: static HTList *converters = NULL; /* List of global converters */
1.27 cvs 74: static HTList *acceptTypes = NULL; /* List of types for the Accept header */
1.4 cvs 75: static HTList *encodings = NULL;
1.16 cvs 76: static int object_counter = 0; /* loaded objects counter */
1.116 cvs 77: static boolean AmayaAlive; /* set to 1 if the application is active;
78: 0 if we have killed */
1.128 ! cvs 79: #ifdef AMAYA_WWW_CACHE
! 80: static int cache_size = 0; /* size of the cache in megabytes */
! 81: #endif /* WWW_AMAYACACHE */
1.4 cvs 82:
1.15 cvs 83: #include "answer_f.h"
84: #include "query_f.h"
85: #include "AHTURLTools_f.h"
86: #include "AHTBridge_f.h"
87: #include "AHTMemConv_f.h"
88: #include "AHTFWrite_f.h"
1.4 cvs 89:
1.116 cvs 90: /* prototypes */
91:
92: #ifdef __STDC__
1.128 ! cvs 93: static void RecCleanCache (char *dirname);
1.123 cvs 94: #ifdef _WINDOWS
1.70 cvs 95: int WIN_Activate_Request (HTRequest* , HTAlertOpcode, int, const char*, void*, HTAlertPar*);
1.116 cvs 96: #endif /* _WINDOWS */
1.70 cvs 97: #else
1.128 ! cvs 98: static void RecCleanCache (/* char *dirname */);
1.123 cvs 99: #ifdef _WINDOWS
1.128 ! cvs 100: int WIN_Activate_Request (/* HTRequest* , HTAlertOpcode, int, const char*, void*, HTAlertPar* */);
1.116 cvs 101: #endif /* _WINDOWS */
1.70 cvs 102: #endif /* __STDC__ */
1.116 cvs 103:
1.15 cvs 104:
105: /*----------------------------------------------------------------------
1.17 cvs 106: GetDocIdStatus
107: gets the status associated to a docid
1.15 cvs 108: ----------------------------------------------------------------------*/
109: #ifdef __STDC__
110: AHTDocId_Status *GetDocIdStatus (int docid, HTList * documents)
111: #else
112: AHTDocID_Status *GetDocIdStatus (docid, documents)
113: int docid;
114: HTList *documents;
115:
116: #endif
117: {
118: AHTDocId_Status *me;
119: HTList *cur;
120:
121: if (documents)
122: {
123: cur = documents;
124:
125: while ((me = (AHTDocId_Status *) HTList_nextObject (cur)))
126: {
127: if (me->docid == docid)
128: return (me);
1.18 cvs 129: }
130: }
1.15 cvs 131: return (AHTDocId_Status *) NULL;
132:
133: }
134:
1.5 cvs 135: /*----------------------------------------------------------------------
1.27 cvs 136: AHTGuessAtom_for
137: Converts an Amaya type descriptor into the equivalent MIME type.
138: ----------------------------------------------------------------------*/
139: #ifdef __STDC__
140: static HTAtom *AHTGuessAtom_for (char *urlName, PicType contentType)
141: #else
142: static HTAtom *AHTGuessAtom_for (urlName, contentType)
143: char *urlName;
144: PicType contentType;
145: #endif
146: {
147: HTAtom *atom;
148: char *filename;
149: HTEncoding enc;
150: HTEncoding cte;
151: HTLanguage lang;
1.50 cvs 152: double quality = 1.0;
1.27 cvs 153:
154: switch (contentType)
155: {
156: case xbm_type:
157: atom = HTAtom_for("image/xbm");
158: break;
159: case eps_type:
1.35 cvs 160: atom = HTAtom_for("application/postscript");
1.27 cvs 161: break;
162: case xpm_type:
163: atom = HTAtom_for("image/xpm");
164: break;
165: case gif_type:
166: atom = HTAtom_for("image/gif");
167: break;
168: case jpeg_type:
169: atom = HTAtom_for("image/jpeg");
170: break;
171: case png_type:
172: atom = HTAtom_for("image/png");
173: break;
174: case unknown_type:
175: default:
176: /*
177: ** Amaya could not detect the type, so
178: ** we try to use the filename's suffix to do so.
179: */
1.45 cvs 180: filename = AmayaParseUrl (urlName, "", AMAYA_PARSE_PATH | AMAYA_PARSE_PUNCTUATION);
1.27 cvs 181: HTBind_getFormat (filename, &atom, &enc, &cte, &lang, &quality);
1.45 cvs 182: TtaFreeMemory (filename);
1.27 cvs 183: if (atom == WWW_UNKNOWN)
184: /*
185: ** we could not identify the suffix, so we assign it
186: ** a default type
187: */
188: atom = HTAtom_for ("text/html");
189: break;
190: }
191:
192: return atom;
193: }
194:
195: /*----------------------------------------------------------------------
1.17 cvs 196: AHTReqContext_new
197: create a new Amaya Context Object and update the global Amaya
198: request status.
1.5 cvs 199: ----------------------------------------------------------------------*/
1.4 cvs 200: #ifdef __STDC__
201: static AHTReqContext *AHTReqContext_new (int docid)
202: #else
203: static AHTReqContext *AHTReqContext_new (docid)
204: int docid;
205:
206: #endif
207: {
208: AHTReqContext *me;
209: AHTDocId_Status *docid_status;
210:
211: if ((me = (AHTReqContext *) TtaGetMemory (sizeof (AHTReqContext))) == NULL)
1.116 cvs 212: outofmem (__FILE__, "AHTReqContext_new");
213:
214: /* clear the structure */
215: memset ((void *) me, 0, sizeof (AHTReqContext));
1.4 cvs 216:
1.81 cvs 217: /* Bind the Context object together with the Request Object */
218: me->request = HTRequest_new ();
219:
1.116 cvs 220: /*
221: ** Make sure that the first request is flushed immediately and not
222: ** buffered in the output buffer
223: */
224: HTRequest_setFlush(me->request, YES);
225:
1.80 cvs 226: /* clean the associated file structure) */
1.79 cvs 227: HTRequest_setOutputStream (me->request, NULL);
1.81 cvs 228:
1.4 cvs 229: /* Initialize the other members of the structure */
1.17 cvs 230: me->reqStatus = HT_NEW; /* initial status of a request */
1.4 cvs 231: me->docid = docid;
232: HTRequest_setMethod (me->request, METHOD_GET);
233: HTRequest_setOutputFormat (me->request, WWW_SOURCE);
234: HTRequest_setContext (me->request, me);
1.116 cvs 235:
1.36 cvs 236: /* experimental */
237: me->read_sock = INVSOC;
238: me->write_sock = INVSOC;
239: me->except_sock = INVSOC;
1.4 cvs 240:
241: /* Update the global context */
242: HTList_appendObject (Amaya->reqlist, (void *) me);
243:
244: docid_status = GetDocIdStatus (docid, Amaya->docid_status);
245:
1.7 cvs 246: if (docid_status == NULL)
247: {
1.116 cvs 248: docid_status = (AHTDocId_Status *)
249: TtaGetMemory (sizeof (AHTDocId_Status));
1.7 cvs 250: docid_status->docid = docid;
251: docid_status->counter = 1;
252: HTList_addObject (Amaya->docid_status, (void *) docid_status);
253: }
254: else
1.4 cvs 255: docid_status->counter++;
256:
257: Amaya->open_requests++;
258:
1.74 cvs 259: #ifdef DEBUG_LIBWWW
260: fprintf (stderr, "AHTReqContext_new: Created object %p\n", me);
261: #endif
1.116 cvs 262:
1.4 cvs 263: return me;
264: }
265:
1.5 cvs 266: /*----------------------------------------------------------------------
1.17 cvs 267: AHTReqContext_delete
268: Delete an Amaya Context Object and update the global Amaya request
269: status.
1.5 cvs 270: ----------------------------------------------------------------------*/
1.4 cvs 271:
272: #ifdef __STDC__
1.15 cvs 273: boolean AHTReqContext_delete (AHTReqContext * me)
1.4 cvs 274: #else
1.15 cvs 275: boolean AHTReqContext_delete (me)
1.4 cvs 276: AHTReqContext *me;
277:
278: #endif
279: {
280: AHTDocId_Status *docid_status;
281:
1.7 cvs 282: if (me)
283: {
1.4 cvs 284:
1.74 cvs 285: #ifdef DEBUG_LIBWWW
286: fprintf (stderr, "AHTReqContext_delete: Deleting object %p\n", me);
287: #endif
288:
1.7 cvs 289: if (Amaya->reqlist)
290: HTList_removeObject (Amaya->reqlist, (void *) me);
1.4 cvs 291:
1.7 cvs 292: docid_status = GetDocIdStatus (me->docid, Amaya->docid_status);
1.4 cvs 293:
1.7 cvs 294: if (docid_status)
295: {
296: docid_status->counter--;
297:
298: if (docid_status->counter == 0)
299: {
300: HTList_removeObject (Amaya->docid_status, (void *) docid_status);
301: TtaFreeMemory ((void *) docid_status);
302: }
303: }
1.79 cvs 304: if (HTRequest_outputStream (me->request))
305: AHTFWriter_FREE (me->request->output_stream);
1.7 cvs 306: HTRequest_delete (me->request);
1.85 cvs 307:
1.89 cvs 308: if (me->output && me->output != stdout)
1.85 cvs 309: {
310: #ifdef DEBUG_LIBWWW
311: fprintf (stderr, "AHTReqContext_delete: URL is %s, closing "
312: "FILE %p\n", me->urlName, me->output);
313: #endif
314: fclose (me->output);
315: me->output = NULL;
316: }
1.79 cvs 317:
1.7 cvs 318: if (me->error_stream != (char *) NULL)
1.70 cvs 319: HT_FREE (me->error_stream);
320: # ifndef _WINDOWS
321: # ifdef WWW_XWINDOWS
1.21 cvs 322: if (me->read_xtinput_id || me->write_xtinput_id ||
323: me->except_xtinput_id)
324: RequestKillAllXtevents(me);
1.70 cvs 325: # endif /* WWW_XWINDOWS */
326: # endif /* !_WINDOWS */
1.74 cvs 327:
1.99 cvs 328: if (me->reqStatus == HT_ABORT)
329: {
330: if (me->outputfile && me->outputfile[0] != EOS)
331: {
332: TtaFileUnlink (me->outputfile);
333: me->outputfile[0] = EOS;
334: }
335: }
336:
1.74 cvs 337: if ((me->mode & AMAYA_ASYNC) || (me->mode & AMAYA_IASYNC))
338: /* for the ASYNC mode, free the memory we allocated in GetObjectWWW
339: or in PutObjectWWW */
340: {
1.79 cvs 341: if (me->urlName)
342: TtaFreeMemory (me->urlName);
343: if (me->outputfile)
344: TtaFreeMemory (me->outputfile);
1.74 cvs 345: }
1.113 cvs 346:
347: if (me->content_type)
348: TtaFreeMemory (me->content_type);
1.116 cvs 349: /* @@@ need to do this better */
350: if (me->formdata)
351: HTAssocList_delete (me->formdata);
352:
353: /* to trace bugs */
354: memset ((void *) me, 0, sizeof (AHTReqContext));
1.99 cvs 355:
1.7 cvs 356: TtaFreeMemory ((void *) me);
1.116 cvs 357:
1.7 cvs 358: Amaya->open_requests--;
1.116 cvs 359:
1.15 cvs 360: return TRUE;
1.7 cvs 361: }
1.15 cvs 362: return FALSE;
1.4 cvs 363: }
364:
365:
1.15 cvs 366: /*----------------------------------------------------------------------
1.17 cvs 367: Thread_deleteAll
368: this function deletes the whole list of active threads.
1.5 cvs 369: ----------------------------------------------------------------------*/
1.4 cvs 370: #ifdef __STDC__
371: static void Thread_deleteAll (void)
372: #else
373: static void Thread_deleteAll ()
374: #endif
375: {
1.21 cvs 376: HTList *cur;
377: AHTReqContext *me;
378: AHTDocId_Status *docid_status;
379:
1.74 cvs 380: if (Amaya && Amaya->reqlist)
381: {
382: if (Amaya->open_requests > 0)
383: #ifdef DEBUG_LIBWWW
384: fprintf (stderr, "Thread_deleteAll: Killing %d outstanding "
385: "requests\n", Amaya->open_requests);
386: #endif
387: {
388: cur = Amaya->reqlist;
389:
390: /* erase the requests */
391: while ((me = (AHTReqContext *) HTList_removeLastObject (cur)))
392: {
393: if (me->request)
394: {
1.70 cvs 395: # ifndef _WINDOWS
1.74 cvs 396: RequestKillAllXtevents (me);
1.70 cvs 397: # endif /* !_WINDOWS */
1.92 cvs 398:
399: if (me->request->net)
400: HTRequest_kill (me->request);
1.96 cvs 401: #ifndef _WINDOWS
402: AHTReqContext_delete (me);
403: #endif /* _WINDOWS */
1.74 cvs 404: }
405: } /* while */
406:
407: /* erase the docid_status entities */
408: while ((docid_status = (AHTDocId_Status *) HTList_removeLastObject ((void *) Amaya->docid_status)))
409: TtaFreeMemory ((void *) docid_status);
410:
411: } /* if */
1.84 cvs 412:
1.74 cvs 413: }
1.4 cvs 414: }
415:
1.5 cvs 416: /*----------------------------------------------------------------------
1.83 cvs 417: AHTOpen_file
418: ----------------------------------------------------------------------*/
419: #ifdef __STDC__
1.85 cvs 420: int AHTOpen_file (HTRequest * request)
1.83 cvs 421: #else
1.85 cvs 422: int AHTOpen_file (request)
1.83 cvs 423: HTRequest *request;
424:
425: #endif /* __STDC__ */
426: {
427: AHTReqContext *me; /* current request */
428:
429: me = HTRequest_context (request);
430:
1.93 cvs 431:
432: if (!me)
433: return HT_ERROR;
434:
1.83 cvs 435: #ifdef DEBUG_LIBWWW
1.116 cvs 436: fprintf(stderr, "AHTOpen_file: start for object : %p\n", me);
1.85 cvs 437: #endif /* DEBUG_LIBWWW */
438:
439: if (me->reqStatus == HT_ABORT)
440: {
441: #ifdef DEBUG_LIBWWW
442: fprintf(stderr, "AHTOpen_file: caught an abort request, skipping it\n");
1.83 cvs 443: #endif /* DEBUG_LIBWWW */
444:
1.85 cvs 445: return HT_OK;
446: }
447:
448: if (HTRequest_outputStream (me->request))
449: {
450:
451: #ifdef DEBUG_LIBWWW
452: fprintf(stderr, "AHTOpen_file: output stream already existed for url %s\n", me->urlName);
453: #endif /* DEBUG_LIBWWW */
454: return HT_OK;
455: }
456:
457: #ifdef DEBUG_LIBWWW
458: fprintf(stderr, "AHTOpen_file: opening output stream for url %s\n", me->urlName);
459: #endif /* DEBUG_LIBWWW */
460:
1.83 cvs 461: if (!(me->output) &&
462: (me->output != stdout) &&
463: #ifndef _WINDOWS
464: (me->output = fopen (me->outputfile, "w")) == NULL)
465: {
1.116 cvs 466: #else /* !_WINDOWS */
1.83 cvs 467: (me->output = fopen (me->outputfile, "wb")) == NULL)
468: {
469: #endif /* !_WINDOWS */
470:
471: me->outputfile[0] = '\0'; /* file could not be opened */
1.85 cvs 472: #ifdef DEBUG_LIBWWW
473: fprintf(stderr, "AHTOpen_file: couldn't open output stream for url %s\n", me->urlName);
474: #endif
1.83 cvs 475: TtaSetStatus (me->docid, 1,
476: TtaGetMessage (AMAYA, AM_CANNOT_CREATE_FILE),
477: me->outputfile);
478: me->reqStatus = HT_ERR;
479: return (HT_ERROR);
480: }
481:
482: HTRequest_setOutputStream (me->request,
483: AHTFWriter_new (me->request,
484: me->output, YES));
485: me->reqStatus = HT_WAITING;
486:
487: return HT_OK;
488: }
489:
490: /*----------------------------------------------------------------------
1.17 cvs 491: redirection_handler
492: this function is registered to handle permanent and temporary
493: redirections.
494: ----------------------------------------------------------------------*/
1.4 cvs 495: #ifdef __STDC__
1.7 cvs 496: static int redirection_handler (HTRequest * request, HTResponse * response, void *param, int status)
1.4 cvs 497: #else
498: static int redirection_handler (request, context, status)
499: HTRequest *request;
500: HTResponse *response;
501: void *param;
502: int status;
503:
504: #endif
505: {
506:
507: HTAnchor *new_anchor = HTResponse_redirection (response);
1.7 cvs 508: AHTReqContext *me = HTRequest_context (request);
1.4 cvs 509: HTMethod method = HTRequest_method (request);
1.98 cvs 510: char *ref;
511: char *tmp;
1.4 cvs 512:
1.7 cvs 513: if (!new_anchor)
514: {
515: if (PROT_TRACE)
516: HTTrace ("Redirection. No destination\n");
517: return HT_OK;
518: }
1.4 cvs 519:
520: /*
521: ** Only do redirect on GET and HEAD
522: */
1.7 cvs 523: if (!HTMethod_isSafe (method))
524: {
525: HTAlertCallback *prompt = HTAlert_find (HT_A_CONFIRM);
526: if (prompt)
527: {
528: if ((*prompt) (request, HT_A_CONFIRM, HT_MSG_REDIRECTION,
529: NULL, NULL, NULL) != YES)
530: return HT_ERROR;
531: }
532: }
1.4 cvs 533:
534: /*
535: ** Start new request with the redirect anchor found in the headers.
536: ** Note that we reuse the same request object which means that we must
537: ** keep this around until the redirected request has terminated. It also
538: ** allows us in an easy way to keep track of the number of redirections
539: ** so that we can detect endless loops.
540: */
1.17 cvs 541:
1.7 cvs 542: if (HTRequest_doRetry (request))
543: {
544: /* do we need to normalize the URL? */
545: if (strncmp (new_anchor->parent->address, "http:", 5))
546: {
547: /* Yes, so we use the pre-redirection anchor as a base name */
1.74 cvs 548: ref = AmayaParseUrl (new_anchor->parent->address,
549: me->urlName, AMAYA_PARSE_ALL);
1.7 cvs 550: if (ref)
551: {
1.98 cvs 552: HT_FREE (new_anchor->parent->address);
553: tmp = NULL;
554: HTSACopy (&tmp, ref);
555: new_anchor->parent->address = tmp;
556: TtaFreeMemory (ref);
1.7 cvs 557: }
1.98 cvs 558: else
559: return HT_ERROR; /* We can't redirect anymore */
1.7 cvs 560: }
561:
562: /* update the current file name */
1.116 cvs 563: TtaFreeMemory (me->urlName);
564: me->urlName = TtaStrdup (new_anchor->parent->address);
565:
1.21 cvs 566: if (strlen (new_anchor->parent->address) > (MAX_LENGTH - 2))
1.7 cvs 567: {
1.116 cvs 568: strncpy (me->urlName, new_anchor->parent->address,
569: MAX_LENGTH - 1);
1.21 cvs 570: me->urlName[MAX_LENGTH - 1] = EOS;
1.7 cvs 571: }
572: else
1.74 cvs 573: strcpy (me->urlName, new_anchor->parent->address);
1.7 cvs 574:
1.38 cvs 575: ChopURL (me->status_urlName, me->urlName);
1.116 cvs 576:
1.7 cvs 577: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_RED_FETCHING),
1.38 cvs 578: me->status_urlName);
1.7 cvs 579:
580: /* Start request with new credentials */
1.64 cvs 581:
1.79 cvs 582: if (HTRequest_outputStream (me->request) != NULL) {
1.85 cvs 583: AHTFWriter_FREE (request->output_stream);
584: if (me->output != stdout) { /* Are we writing to a file? */
1.74 cvs 585: #ifdef DEBUG_LIBWWW
1.79 cvs 586: fprintf (stderr, "redirection_handler: New URL is %s, closing "
1.74 cvs 587: "FILE %p\n", me->urlName, me->output);
588: #endif
1.79 cvs 589: fclose (me->output);
590: me->output = NULL;
591: }
1.64 cvs 592: }
1.68 cvs 593:
1.105 cvs 594: /* reset the status */
1.116 cvs 595: me->reqStatus = HT_NEW;
1.105 cvs 596: /* clear the errors */
1.116 cvs 597: HTError_deleteAll (HTRequest_error (request));
1.105 cvs 598: HTRequest_setError (request, NULL);
1.116 cvs 599:
1.7 cvs 600: if (me->method == METHOD_PUT || me->method == METHOD_POST) /* PUT, POST etc. */
1.74 cvs 601: status = HTLoadAbsolute (me->urlName, request);
1.7 cvs 602: else
1.74 cvs 603: HTLoadAnchor (new_anchor, request);
1.7 cvs 604: }
605: else
1.68 cvs 606: {
1.74 cvs 607: HTRequest_addError (request, ERR_FATAL, NO, HTERR_MAX_REDIRECT,
608: NULL, 0, "HTRedirectFilter");
609: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_REDIRECTIONS_LIMIT),
610: NULL);
611: if (me->error_html)
612: DocNetworkStatus[me->docid] |= AMAYA_NET_ERROR;
613: /* so that we can show the error message */
1.68 cvs 614: }
615:
1.4 cvs 616: /*
1.74 cvs 617: ** By returning HT_ERROR we make sure that this is the last handler to be
618: ** called. We do this as we don't want any other filter to delete the
619: ** request object now when we have just started a new one ourselves
620: */
1.4 cvs 621: return HT_ERROR;
622: }
623:
1.5 cvs 624: /*----------------------------------------------------------------------
1.17 cvs 625: terminate_handler
626: this function is registered to handle the result of the request
1.5 cvs 627: ----------------------------------------------------------------------*/
1.4 cvs 628: #if __STDC__
1.7 cvs 629: static int terminate_handler (HTRequest * request, HTResponse * response, void *context, int status)
1.4 cvs 630: #else
631: static int terminate_handler (request, response, context, status)
632: HTRequest *request;
633: HTResponse *response;
634: void *context;
635: int status;
1.123 cvs 636: #endif /* __STDC__ */
1.4 cvs 637: {
1.116 cvs 638: AHTReqContext *me = (AHTReqContext *) HTRequest_context (request);
639: boolean error_flag;
640: char *content_type;
641:
642: if (!me)
643: return HT_OK; /* not an Amaya request */
644:
645: if (me->reqStatus == HT_END)
646: /* we have already processed this request! */
647: return HT_OK;
648:
649: /* if Amaya was killed, treat with this request as if it were
650: issued by a Stop button event */
651:
652: if (!AmayaIsAlive ())
1.80 cvs 653: me->reqStatus = HT_ABORT;
1.74 cvs 654:
1.77 cvs 655: if (status == HT_LOADED ||
656: status == HT_CREATED ||
1.79 cvs 657: status == HT_NO_DATA ||
1.116 cvs 658: #ifdef AMAYA_WWW_CACHE
659: /* what status to use to know we're downloading from a cache? */
660: status == HT_NOT_MODIFIED ||
661: #endif /* AMAYA_WWW_CACHE */
1.79 cvs 662: me->reqStatus == HT_ABORT)
1.74 cvs 663: error_flag = FALSE;
1.13 cvs 664: else
1.74 cvs 665: error_flag = TRUE;
666:
1.4 cvs 667: /* output any errors from the server */
1.74 cvs 668:
1.77 cvs 669: /*
1.74 cvs 670: ** me->output = output file which will receive an html file
671: ** me->error_html = yes, output HTML errors in the screen
672: ** request->error_stack == if there are any errors, they will be here
673: ** me->error_stream_size If it's != 0 means an error message has already
674: ** been written to the stack
675: */
676:
1.4 cvs 677: /* First, we verify if there are any errors and if they are not
1.17 cvs 678: ** yet written to the error stack. If no, then let's try to write them
679: ** ourselves
680: */
1.74 cvs 681:
682: #ifdef DEBUG_LIBWWW
683: fprintf (stderr, "terminate_handler: URL is "
684: "%s, closing FILE %p status is %d\n", me->urlName, me->output,
685: status);
1.69 cvs 686: #endif
1.74 cvs 687:
1.69 cvs 688: if (me->output && me->output != stdout)
689: {
1.74 cvs 690: /* we are writing to a file */
691: if (me->reqStatus != HT_ABORT)
692: { /* if the request was not aborted and */
1.80 cvs 693: if (error_flag &&
694: me->error_html == TRUE)
695: /* there were some errors and we want to print them */
696: {
697: if (me->error_stream_size == 0)/* and the stream is empty */
698: AHTError_MemPrint (request); /* copy errors from
1.74 cvs 699: **the error stack
1.77 cvs 700: ** into the error stream */
1.80 cvs 701: if (me->error_stream)
702: { /* if the stream is non-empty */
703: fprintf (me->output, me->error_stream);/* output the errors */
1.85 cvs 704: /* Clear the error context, so that we can deal with
705: this answer as if it were a normal reply */
706: HTError_deleteAll( HTRequest_error (request));
707: HTRequest_setError (request, NULL);
708: error_flag = 0;
1.74 cvs 709: }
710: } /* if error_stack */
1.85 cvs 711: }
712:
713: /* if != HT_ABORT */
714:
715: #ifdef DEBUG_LIBWWW
716: fprintf (stderr, "terminate_handler: URL is %s, closing "
717: "FILE %p\n", me->urlName, me->output);
718: #endif
1.74 cvs 719: fclose (me->output);
720: me->output = NULL;
1.69 cvs 721: }
1.80 cvs 722:
723: if (error_flag)
724: me->reqStatus = HT_ERR;
725: else if (me->reqStatus != HT_ABORT)
726: me->reqStatus = HT_END;
1.116 cvs 727:
728: /* copy the content_type */
729: content_type = request->anchor->content_type->name;
1.114 cvs 730: if (content_type && content_type [0] != EOS)
1.88 cvs 731: {
1.114 cvs 732: /* libwww gives www/unknown when it gets an error. As this is
733: an HTML test, we force the type to text/html */
734: if (!strcmp (content_type, "www/unknown"))
735: me->content_type = TtaStrdup ("text/html");
736: else
737: me->content_type = TtaStrdup (content_type);
738:
739: /* Content-Type can be specified by an httpd server's admin. To be on
740: the safe side, we normalize its case */
741: ConvertToLowerCase (me->content_type);
742:
1.88 cvs 743: #ifdef DEBUG_LIBWWW
744: fprintf (stderr, "content type is: %s\n", me->content_type);
745: #endif /* DEBUG_LIBWWW */
1.114 cvs 746: }
747:
1.115 cvs 748: /* to avoid a hangup while downloading css files */
749: if (AmayaAlive && (me->mode & AMAYA_LOAD_CSS))
1.116 cvs 750: TtaSetStatus (me->docid, 1,
751: TtaGetMessage (AMAYA, AM_ELEMENT_LOADED),
752: me->status_urlName);
753:
754: /* don't remove or Xt will hang up during the PUT */
755: if (AmayaIsAlive () && ((me->method == METHOD_POST) ||
756: (me->method == METHOD_PUT)))
1.7 cvs 757: {
1.80 cvs 758: PrintTerminateStatus (me, status);
1.116 cvs 759:
1.80 cvs 760: }
1.114 cvs 761:
1.111 cvs 762: ProcessTerminateRequest (request, response, context, status);
1.116 cvs 763:
1.111 cvs 764: return HT_OK;
1.4 cvs 765: }
766:
1.5 cvs 767: /*----------------------------------------------------------------------
1.17 cvs 768: AHTLoadTerminate_handler
1.74 cvs 769: this is an application "AFTER" Callback. It's called by the library
770: when a request has ended, so that we can setup the correct status.
1.5 cvs 771: ----------------------------------------------------------------------*/
1.4 cvs 772:
773: #ifdef __STDC__
1.111 cvs 774: int AHTLoadTerminate_handler (HTRequest * request, HTResponse * response, void *param, int status)
1.4 cvs 775: #else
1.111 cvs 776: int AHTLoadTerminate_handler (request, response, param, status)
1.4 cvs 777: HTRequest *request;
778: HTResponse *response;
779: void *param;
780: int status;
1.69 cvs 781:
1.4 cvs 782: #endif
783: {
1.116 cvs 784:
785: /** @@@@ use this with printstatus ?? */
786:
1.4 cvs 787: AHTReqContext *me = HTRequest_context (request);
788: HTAlertCallback *cbf;
789: AHTDocId_Status *docid_status;
790:
1.123 cvs 791: #ifdef _WINDOWS
792: /* @@@ I have problems with the trace variables under windows */
1.124 cvs 793: return HT_OK;
1.123 cvs 794: #endif /* _WINDOWS */
795:
1.7 cvs 796: switch (status)
1.116 cvs 797: {
798: case HT_LOADED:
799: if (PROT_TRACE)
800: HTTrace ("Load End.... OK: `%s\' has been accessed\n",
801: me->status_urlName);
1.4 cvs 802:
1.116 cvs 803: docid_status = GetDocIdStatus (me->docid,
804: Amaya->docid_status);
1.7 cvs 805:
1.116 cvs 806: if (docid_status != NULL && docid_status->counter > 1)
807: TtaSetStatus (me->docid, 1,
808: TtaGetMessage (AMAYA, AM_ELEMENT_LOADED),
1.74 cvs 809: me->status_urlName);
1.7 cvs 810: break;
1.116 cvs 811:
812: case HT_NO_DATA:
813: if (PROT_TRACE)
814: HTTrace ("Load End.... OK BUT NO DATA: `%s\'\n",
815: me->status_urlName);
816: TtaSetStatus (me->docid, 1,
817: TtaGetMessage (AMAYA, AM_LOADED_NO_DATA),
818: me->status_urlName);
819: break;
820:
821: case HT_INTERRUPTED:
822: if (PROT_TRACE)
823: HTTrace ("Load End.... INTERRUPTED: `%s\'\n",
824: me->status_urlName);
825: TtaSetStatus (me->docid, 1,
826: TtaGetMessage (AMAYA, AM_LOAD_ABORT),
827: NULL);
828: break;
1.7 cvs 829:
1.116 cvs 830: case HT_RETRY:
831: if (PROT_TRACE)
832: HTTrace ("Load End.... NOT AVAILABLE, RETRY AT %ld\n",
833: HTResponse_retryTime (response));
834: TtaSetStatus (me->docid, 1,
835: TtaGetMessage (AMAYA, AM_NOT_AVAILABLE_RETRY),
836: me->status_urlName);
837: break;
1.7 cvs 838:
1.116 cvs 839: case HT_ERROR:
840: cbf = HTAlert_find (HT_A_MESSAGE);
841: if (cbf)
842: (*cbf) (request, HT_A_MESSAGE, HT_MSG_NULL, NULL,
843: HTRequest_error (request), NULL);
844: break;
845:
846: if (PROT_TRACE)
847: HTTrace ("Load End.... ERROR: Can't access `%s\'\n",
848: me->status_urlName ? me->status_urlName :"<UNKNOWN>");
849: TtaSetStatus (me->docid, 1,
850: TtaGetMessage (AMAYA, AM_CANNOT_LOAD),
851: me->status_urlName ? me->status_urlName : "<UNKNOWN>");
852: break;
853: default:
854: if (PROT_TRACE)
855: HTTrace ("Load End.... UNKNOWN RETURN CODE %d\n", status);
856: break;
857: }
858:
859: return HT_OK;
860: }
1.7 cvs 861:
1.116 cvs 862: #ifdef DEBUG_LIBWWW
863: static int LineTrace (const char * fmt, va_list pArgs)
864: {
865: return (vfprintf(stderr, fmt, pArgs));
1.4 cvs 866: }
1.116 cvs 867: #endif DEBUG_LIBWWW
1.4 cvs 868:
1.27 cvs 869: /*----------------------------------------------------------------------
870: AHTAcceptTypesInit
1.74 cvs 871: This function prepares the Accept header used by Amaya during
872: the HTTP content negotiation phase
1.27 cvs 873: ----------------------------------------------------------------------*/
874: #ifdef __STDC__
875: static void AHTAcceptTypesInit (HTList *c)
876: #else /* __STDC__ */
877: static void AHTAcceptTypesInit (c)
878: HTList *c;
879: #endif /* __STDC__ */
880: {
881: if (c == (HTList *) NULL)
882: return;
883:
884: /* define here all the mime types that Amaya can accept */
885:
1.74 cvs 886: HTConversion_add (c, "image/png", "www/present",
887: HTThroughLine, 1.0, 0.0, 0.0);
888: HTConversion_add (c, "image/jpeg", "www/present",
889: HTThroughLine, 1.0, 0.0, 0.0);
890: HTConversion_add (c, "image/gif", "www/present",
891: HTThroughLine, 1.0, 0.0, 0.0);
892: HTConversion_add (c, "image/xbm", "www/present",
893: HTThroughLine, 1.0, 0.0, 0.0);
894: HTConversion_add (c, "image/xpm", "www/present",
895: HTThroughLine, 1.0, 0.0, 0.0);
896: HTConversion_add (c, "application/postscript",
897: "www/present", HTThroughLine, 1.0, 0.0, 0.0);
1.4 cvs 898:
1.27 cvs 899: /* Define here the equivalences between MIME types and file extensions for
900: the types that Amaya can display */
901:
902: /* Register the default set of file suffix bindings */
903: HTFileInit ();
904:
905: /* Don't do any case distinction */
906: HTBind_caseSensitive (FALSE);
907: }
1.4 cvs 908:
1.5 cvs 909: /*----------------------------------------------------------------------
1.17 cvs 910: AHTConverterInit
911: Bindings between a source media type and a destination media type
912: (conversion).
1.5 cvs 913: ----------------------------------------------------------------------*/
1.15 cvs 914: #ifdef __STDC__
915: static void AHTConverterInit (HTList *c)
916: #else /* __STDC__ */
917: static void AHTConverterInit (c)
918: HTList *c;
919: #endif /* __STDC__ */
1.4 cvs 920: {
921:
922: /* Handler for custom http error messages */
1.7 cvs 923: HTConversion_add (c, "*/*", "www/debug", AHTMemConverter, 1.0, 0.0, 0.0);
1.4 cvs 924:
925: /*
926: ** These are converters that converts to something other than www/present,
927: ** that is not directly outputting someting to the user on the screen
928: */
929:
1.116 cvs 930: HTConversion_add (c, "message/rfc822", "*/*", HTMIMEConvert,
931: 1.0, 0.0, 0.0);
1.4 cvs 932: HTConversion_add (c, "message/x-rfc822-foot", "*/*", HTMIMEFooter,
933: 1.0, 0.0, 0.0);
934: HTConversion_add (c, "message/x-rfc822-head", "*/*", HTMIMEHeader,
935: 1.0, 0.0, 0.0);
1.116 cvs 936: HTConversion_add(c,"message/x-rfc822-cont", "*/*", HTMIMEContinue,
937: 1.0, 0.0, 0.0);
938: HTConversion_add(c,"message/x-rfc822-partial","*/*", HTMIMEPartial,
939: 1.0, 0.0, 0.0);
1.4 cvs 940: HTConversion_add (c, "multipart/*", "*/*", HTBoundary,
941: 1.0, 0.0, 0.0);
942: HTConversion_add (c, "text/plain", "text/html", HTPlainToHTML,
943: 1.0, 0.0, 0.0);
944:
945: /*
1.116 cvs 946: ** The following conversions are converting ASCII output from various
947: ** protocols to HTML objects.
948: */
1.4 cvs 949: HTConversion_add (c, "text/x-http", "*/*", HTTPStatus_new,
950: 1.0, 0.0, 0.0);
951:
952: /*
1.116 cvs 953: ** We also register a special content type guess stream that can figure out
954: ** the content type by reading the first bytes of the stream
955: */
1.4 cvs 956: HTConversion_add (c, "www/unknown", "*/*", HTGuess_new,
957: 1.0, 0.0, 0.0);
958:
1.116 cvs 959: #ifdef AMAYA_WWW_CACHE
1.4 cvs 960: /*
1.116 cvs 961: ** Register a persistent cache stream which can save an object to local
962: ** file
963: */
1.4 cvs 964: HTConversion_add (c, "www/cache", "*/*", HTCacheWriter,
965: 1.0, 0.0, 0.0);
1.116 cvs 966: HTConversion_add(c,"www/cache-append", "*/*", HTCacheAppend,
967: 1.0, 0.0, 0.0);
968: #endif AMAYA_WWW_CACHE
1.4 cvs 969:
970: /*
1.116 cvs 971: ** This dumps all other formats to local disk without any further
972: ** action taken
973: */
1.4 cvs 974: HTConversion_add (c, "*/*", "www/present", HTSaveLocally,
975: 0.3, 0.0, 0.0);
1.116 cvs 976:
1.4 cvs 977: }
978:
1.27 cvs 979:
1.15 cvs 980: /*----------------------------------------------------------------------
1.17 cvs 981: AHTProtocolInit
982: Registers all amaya supported protocols.
1.15 cvs 983: ----------------------------------------------------------------------*/
1.4 cvs 984: static void AHTProtocolInit (void)
985: {
1.116 cvs 986: char *strptr;
1.4 cvs 987:
1.116 cvs 988: /*
989: NB. Preemptive == YES means Blocking requests
990: Non-preemptive == NO means Non-blocking requests
991: */
992: HTTransport_add("tcp", HT_TP_SINGLE, HTReader_new, HTWriter_new);
993: HTTransport_add("buffered_tcp", HT_TP_SINGLE, HTReader_new,
994: HTBufferWriter_new);
995: HTProtocol_add ("http", "buffered_tcp", HTTP_PORT, NO, HTLoadHTTP, NULL);
996: HTProtocol_add ("file", "local", 0, NO, HTLoadFile, NULL);
997: #ifdef AMAYA_WWW_CACHE
998: HTProtocol_add("cache", "local", 0, YES, HTLoadCache, NULL);
999: #endif /* AMAYA_WWW_CACHE */
1.103 cvs 1000: #if 0 /* experimental code */
1.116 cvs 1001: HTProtocol_add ("ftp", "tcp", FTP_PORT, NO, HTLoadFTP, NULL);
1.17 cvs 1002: #endif
1.116 cvs 1003:
1004: /* initialize pipelining */
1.121 cvs 1005: strptr = (char *) TtaGetEnvString ("ENABLE_PIPELINING");
1.116 cvs 1006: if (strptr && *strptr && strcasecmp (strptr,"yes" ))
1007: HTTP_setConnectionMode (HTTP_11_NO_PIPELINING);
1.4 cvs 1008: }
1009:
1.15 cvs 1010: /*----------------------------------------------------------------------
1.17 cvs 1011: AHTNetInit
1012: Reegisters "before" and "after" request filters.
1.15 cvs 1013: ----------------------------------------------------------------------*/
1.4 cvs 1014: static void AHTNetInit (void)
1015: {
1016:
1017: /* Register BEFORE filters
1.74 cvs 1018: ** The BEFORE filters handle proxies, caches, rule files etc.
1019: ** The filters are called in the order by which the are registered
1020: ** Not done automaticly - may be done by application!
1021: */
1.4 cvs 1022:
1.116 cvs 1023: #ifdef AMAYA_WWW_CACHE
1024: HTNet_addBefore (HTCacheFilter, "http://*", NULL, HT_FILTER_MIDDLE);
1025: #endif /* AMAYA_WWW_CACHE */
1026: HTNet_addBefore (HTCredentialsFilter, "http://*", NULL, HT_FILTER_LATE);
1027: HTNet_addBefore (HTProxyFilter, NULL, NULL, HT_FILTER_LATE);
1.85 cvs 1028: HTHost_setActivateRequestCallback (AHTOpen_file);
1.4 cvs 1029:
1030: /* register AFTER filters
1.74 cvs 1031: ** The AFTER filters handle error messages, logging, redirection,
1032: ** authentication etc.
1033: ** The filters are called in the order by which the are registered
1034: ** Not done automaticly - may be done by application!
1035: */
1.4 cvs 1036:
1.116 cvs 1037: HTNet_addAfter (HTAuthFilter, "http://*", NULL, HT_NO_ACCESS,
1038: HT_FILTER_MIDDLE);
1039: HTNet_addAfter(HTAuthFilter, "http://*", NULL, HT_REAUTH,
1040: HT_FILTER_MIDDLE);
1041: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_PERM_REDIRECT,
1042: HT_FILTER_MIDDLE);
1043: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_FOUND,
1044: HT_FILTER_MIDDLE);
1045: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_SEE_OTHER,
1046: HT_FILTER_MIDDLE);
1047: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_TEMP_REDIRECT,
1048: HT_FILTER_MIDDLE);
1049: HTNet_addAfter (HTUseProxyFilter, "http://*", NULL, HT_USE_PROXY,
1050: HT_FILTER_MIDDLE);
1051: #ifdef AMAYA_WWW_CACHE
1052: HTNet_addAfter (HTCacheUpdateFilter, "http://*", NULL, HT_NOT_MODIFIED,
1053: HT_FILTER_MIDDLE);
1054: #endif /* AMAYA_WWW_CACHE */
1.111 cvs 1055: #ifndef _WINDOWS
1.116 cvs 1056: HTNet_addAfter (AHTLoadTerminate_handler, NULL, NULL, HT_ALL,
1057: HT_FILTER_LAST);
1.111 cvs 1058: #endif /* !_WINDOWS */
1.116 cvs 1059: /**** for later ?? ****/
1060: /* HTNet_addAfter(HTInfoFilter, NULL, NULL, HT_ALL, HT_FILTER_LATE); */
1.51 cvs 1061: /* handles all errors */
1.116 cvs 1062: HTNet_addAfter (terminate_handler, NULL, NULL, HT_ALL, HT_FILTER_LAST);
1.4 cvs 1063: }
1064:
1.15 cvs 1065: /*----------------------------------------------------------------------
1.17 cvs 1066: AHTAlertInit
1067: Register alert messages and their callbacks.
1.15 cvs 1068: ----------------------------------------------------------------------*/
1069: #ifdef __STDC__
1070: static void AHTAlertInit (void)
1071: #else
1072: static void AHTAlertInit ()
1073: #endif
1074: {
1075: HTAlert_add (AHTProgress, HT_A_PROGRESS);
1.120 cvs 1076: #ifdef __WINDOWS
1.70 cvs 1077: HTAlert_add ((HTAlertCallback *) WIN_Activate_Request, HT_PROG_CONNECT);
1.116 cvs 1078: #endif /* _WINDOWS */
1.15 cvs 1079: HTAlert_add (AHTError_print, HT_A_MESSAGE);
1.48 cvs 1080: HTError_setShow (~((unsigned int) 0 ) & ~((unsigned int) HT_ERR_SHOW_DEBUG)); /* process all messages except debug ones*/
1.15 cvs 1081: HTAlert_add (AHTConfirm, HT_A_CONFIRM);
1082: HTAlert_add (AHTPrompt, HT_A_PROMPT);
1083: HTAlert_add (AHTPromptPassword, HT_A_SECRET);
1084: HTAlert_add (AHTPromptUsernameAndPassword, HT_A_USER_PW);
1.116 cvs 1085: #ifdef AMAYA_WWW_CACHE
1.117 cvs 1086: /***
1087: HTAlert_add (AHTConfirm, HT_MSG_CACHE_LOCK);
1088: ***/
1.116 cvs 1089: #endif /* AMAYA_WWW_CACHE */
1090: }
1091:
1.128 ! cvs 1092: /*----------------------------------------------------------------------
! 1093: libwww_CleanCache
! 1094: frontend to the recursive cache cleaning function
! 1095: ----------------------------------------------------------------------*/
! 1096: #ifdef __STDC__
! 1097: void libwww_CleanCache (void)
! 1098: #else
! 1099: void libwww_CleanCache ()
! 1100: Document doc;
! 1101: View view;
! 1102: #endif /* __STDC__ */
! 1103: {
! 1104: char *strptr;
! 1105: char *cache_dir;
! 1106: int cache_size;
! 1107: #ifdef AMAYA_WWW_CACHE
! 1108: if (!HTCacheMode_enabled ())
! 1109: /* don't do anything if we're not using a cache */
! 1110: return;
! 1111: /* temporarily close down the cache, purge it, then restart */
! 1112: cache_dir = strdup (HTCacheMode_getRoot ());
! 1113: cache_size = HTCacheMode_maxSize ();
! 1114: HTCacheTerminate ();
! 1115: strptr = TtaGetMemory (strlen (cache_dir) + 2);
! 1116: strcpy (strptr, cache_dir);
! 1117: strcat (strptr, DIR_STR);
! 1118:
! 1119: RecCleanCache (strptr);
! 1120:
! 1121: TtaFreeMemory (strptr);
! 1122: HTCacheMode_setExpires(HT_EXPIRES_AUTO);
! 1123: HTCacheInit (cache_dir, cache_size);
! 1124: TtaFreeMemory (cache_dir);
! 1125: #endif /* AMAYA_WWW_CACHE */
! 1126: }
! 1127:
1.118 cvs 1128: #ifdef AMAYA_WWW_CACHE
1129: /*----------------------------------------------------------------------
1.128 ! cvs 1130: RecCleanCache
1.118 cvs 1131: Clears an existing cache directory
1132: ----------------------------------------------------------------------*/
1133: #ifdef __STDC__
1.128 ! cvs 1134: static void RecCleanCache (char *dirname)
1.118 cvs 1135: #else
1.128 ! cvs 1136: static void RecCleanCache (char *dirname)
! 1137: Document doc;
! 1138: View view;
1.118 cvs 1139: #endif /* __STDC__ */
1.128 ! cvs 1140:
! 1141: #ifdef _WINDOWS
! 1142: {
! 1143: HANDLE hFindFile;
! 1144: boolean status;
! 1145: WIN32_FIND_DATA ffd;
! 1146:
! 1147: char t_dir [MAX_LENGTH];
! 1148:
! 1149: /* creat a t_dir name to start searching for files */
! 1150: if ((strlen (dirname) + 10) > MAX_LENGTH)
! 1151: /* ERROR: directory name is too big */
! 1152: return;
! 1153:
! 1154: strcpy (t_dir, dirname);
! 1155: strcat (t_dir, "\\*");
! 1156:
! 1157: hFindFile = FindFirstFile ("t_dir", &ffd);
! 1158:
! 1159: if (hFindFile == INVALID_HANDLE_VALUE)
! 1160: /* nothing to erase? */
! 1161: return;
! 1162:
! 1163: status = TRUE;
! 1164: while (status) {
! 1165: if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
! 1166: {
! 1167: /* it's a directory, erase it recursively */
! 1168: RecCleanCache (ffd.cFileName);
! 1169: rmdir (ffd.cFileName);
! 1170: }
! 1171: else if (ffd.dwFileAttributes & FILE_ATTRIBUTE_NORMAL)
! 1172: {
! 1173: /* it's a file, erase it */
! 1174: /*TtaUnlink (ffd.cFileName); */
! 1175: /* @@ false condition, for not doing anything */
! 1176: status = TRUE;
! 1177: }
! 1178: status = FindNextFile (hFindFile, &ffd);
! 1179: }
! 1180: FindClose (hFindFile);
! 1181: }
! 1182:
! 1183: #else /* _WINDOWS */
1.118 cvs 1184: {
1185: DIR *dp;
1186: struct stat st;
1187: #ifdef HAVE_DIRENT_H
1188: struct dirent *d;
1189: #else
1190: struct direct *d;
1191: #endif /* HAVE_DIRENT_H */
1.128 ! cvs 1192: char filename[BUFSIZ+1];
1.118 cvs 1193:
1194: if ((dp = opendir (dirname)) == NULL)
1195: {
1196: /* @@@ we couldn't open the directory ... we need some msg */
1197: perror (dirname);
1198: exit;
1199: }
1200:
1201: while ((d = readdir (dp)) != NULL)
1202: {
1203: /* skip the UNIX . and .. links */
1204: if (!strcmp (d->d_name, "..")
1205: || !strcmp (d->d_name, "."))
1206: continue;
1207:
1.128 ! cvs 1208: sprintf (filename, "%s"DIR_STR"%s", dirname, d->d_name);
1.118 cvs 1209: if (lstat (filename, &st) < 0 )
1210: {
1211: /* @@2 need some error message */
1212: perror (filename);
1213: continue;
1214: }
1215:
1216: switch (st.st_mode & S_IFMT)
1217: {
1218: case S_IFDIR:
1219: /* if we find a directory, we erase it, recursively */
1.128 ! cvs 1220: strcat (filename, DIR_STR);
! 1221: RecCleanCache (filename);
! 1222: rmdir (filename);
1.118 cvs 1223: break;
1224: case S_IFLNK:
1225: /* skip any links we find */
1226: continue;
1227: break;
1228: default:
1229: /* erase the filename */
1230: TtaFileUnlink (filename);
1231: break;
1232: }
1233: }
1234: closedir (dp);
1235: }
1.128 ! cvs 1236: #endif /* _WINDOWS */
1.118 cvs 1237: #endif /* AMAYA_WWW_CACHE */
1238:
1.116 cvs 1239: /*----------------------------------------------------------------------
1240: CacheInit
1241: Reads the cache settings from the thot.ini file.
1242: ----------------------------------------------------------------------*/
1.118 cvs 1243: #ifdef __STDC__
1.116 cvs 1244: static void CacheInit (void)
1.118 cvs 1245: #else
1246: static void Cacheinit ()
1247: #endif
1248:
1.116 cvs 1249: {
1250: #ifndef AMAYA_WWW_CACHE
1251: HTCacheMode_setEnabled (NO);
1252:
1253: #else /* AMAYA_WWW_CACHE */
1254: char *strptr;
1255: char *cache_dir = NULL;
1256: boolean cache;
1.128 ! cvs 1257:
1.116 cvs 1258: /* activate cache? */
1259: strptr = (char *) TtaGetEnvString ("ENABLE_CACHE");
1260: if (strptr && *strptr && strcasecmp (strptr,"yes" ))
1261: cache = NO;
1262: else
1263: cache = YES;
1264:
1265: /* get the cache dir (or use a default one) */
1266: strptr = (char *) TtaGetEnvString ("CACHE_DIR");
1267: if (strptr && *strptr)
1268: {
1269: cache_dir = TtaGetMemory (strlen (strptr) + strlen (CACHE_DIR_NAME) + 1);
1270: strcpy (cache_dir, strptr);
1271: }
1272: else
1273: {
1.122 cvs 1274: cache_dir = TtaGetMemory (strlen (TempFileDirectory)
1.116 cvs 1275: + strlen (CACHE_DIR_NAME) + 1);
1.122 cvs 1276: strcpy (cache_dir, TempFileDirectory);
1.116 cvs 1277: }
1278: strcat (cache_dir, CACHE_DIR_NAME);
1279:
1280: /* get the cache size (or use a default one) */
1281: strptr = (char *) TtaGetEnvString ("CACHE_SIZE");
1282: if (strptr && *strptr)
1283: cache_size = atoi (strptr);
1284: else
1285: cache_size = DEFAULT_CACHE_SIZE;
1286:
1287: if (cache)
1288: {
1289: /* how to remove the lock? force remove it? */
1290: /* @@@ugly hack to remove the .lock file ... */
1291: /* we would need something to remove the index, clear
1292: the directory, etc. attention to dir-sep */
1293: strptr = TtaGetMemory (strlen (cache_dir) + 20);
1294: strcpy (strptr, cache_dir);
1.128 ! cvs 1295: strcat (strptr, DIR_STR".lock");
1.116 cvs 1296: if (TtaFileExist (strptr))
1297: {
1298: /* remove the lock and clean the cache (the clean cache will remove
1299: all, making the following call unnecessary */
1.118 cvs 1300: strcpy (strptr, cache_dir);
1.128 ! cvs 1301: strcat (strptr, DIR_STR);
! 1302: RecCleanCache (strptr);
1.116 cvs 1303: }
1304: TtaFreeMemory (strptr);
1305:
1306: /* store this in our libwww context */
1307: HTCacheInit (cache_dir, cache_size);
1308: HTCacheMode_setExpires(HT_EXPIRES_AUTO);
1309: }
1310: else
1311: HTCacheMode_setEnabled (NO);
1312:
1313: if (cache_dir)
1314: TtaFreeMemory (cache_dir);
1315: #endif /* AMAYA_WWW_CACHE */
1.15 cvs 1316: }
1317:
1318: /*----------------------------------------------------------------------
1.97 cvs 1319: ProxyInit
1320: Reads any proxies settings which may be declared as environmental
1321: variables or in the thot.ini file. The former overrides the latter.
1322: ----------------------------------------------------------------------*/
1.118 cvs 1323: #ifdef __STDC__
1.97 cvs 1324: static void ProxyInit (void)
1.118 cvs 1325: #else
1326: static void ProxyInit ()
1327: #endif /* __STDC__ */
1.97 cvs 1328: {
1329: char *strptr;
1330: char *str = NULL;
1331: char *name;
1332:
1333: /* get the proxy settings from the thot.ini file */
1334: strptr = (char *) TtaGetEnvString ("HTTP_PROXY");
1335: if (strptr && *strptr)
1336: HTProxy_add ("http", strptr);
1337: /* get the no_proxy settings from the thot.ini file */
1338: strptr = (char *) TtaGetEnvString ("NO_PROXY");
1339: if (strptr && *strptr)
1340: {
1341: str = TtaStrdup (strptr); /* Get copy we can mutilate */
1342: strptr = str;
1343: while ((name = HTNextField (&strptr)) != NULL) {
1344: char *portstr = strchr (name, ':');
1345: unsigned port=0;
1346: if (portstr) {
1347: *portstr++ = '\0';
1.116 cvs 1348: if (*portstr) port = (unsigned) atoi (portstr);
1.97 cvs 1349: }
1350: /* Register it for all access methods */
1351: HTNoProxy_add (name, NULL, port);
1352: }
1353: TtaFreeMemory (str);
1354: }
1355:
1356: /* use libw3's routine to get all proxy settings from the environment */
1357: HTProxy_getEnvVar ();
1358: }
1359:
1360:
1361: /*----------------------------------------------------------------------
1.17 cvs 1362: AHTProfile_newAmaya
1363: creates the Amaya client profile for libwww.
1.15 cvs 1364: ----------------------------------------------------------------------*/
1365: #ifdef __STDC__
1366: static void AHTProfile_newAmaya (char *AppName, char *AppVersion)
1367: #else /* __STDC__ */
1368: static void AHTProfile_newAmaya (AppName, AppVersion)
1369: char *AppName;
1370: char *AppVersion;
1371: #endif /* __STDC__ */
1.4 cvs 1372: {
1373: /* If the Library is not already initialized then do it */
1374: if (!HTLib_isInitialized ())
1375: HTLibInit (AppName, AppVersion);
1376:
1377: if (!converters)
1378: converters = HTList_new ();
1.27 cvs 1379: if (!acceptTypes)
1380: acceptTypes = HTList_new ();
1.4 cvs 1381: if (!encodings)
1382: encodings = HTList_new ();
1383:
1384: /* Register the default set of transport protocols */
1385: HTTransportInit ();
1386:
1387: /* Register the default set of application protocol modules */
1388: AHTProtocolInit ();
1389:
1.116 cvs 1390: /* Register the default set of messages and dialog functions */
1391: AHTAlertInit ();
1392: HTAlert_setInteractive (YES);
1393:
1394: #ifdef AMAYA_WWW_CACHE
1395: /* Enable the persistent cache */
1396: CacheInit ();
1397: #else
1398: HTCacheMode_setEnabled (NO);
1399: #endif /* AMAYA_WWW_CACHE */
1.4 cvs 1400:
1401: /* Register the default set of BEFORE and AFTER filters */
1402: AHTNetInit ();
1403:
1404: /* Set up the default set of Authentication schemes */
1405: HTAAInit ();
1406:
1.97 cvs 1407: /* Get any proxy settings */
1408: ProxyInit ();
1.4 cvs 1409:
1410: /* Register the default set of converters */
1411: AHTConverterInit (converters);
1.27 cvs 1412: AHTAcceptTypesInit (acceptTypes);
1.4 cvs 1413: HTFormat_setConversion (converters);
1414:
1415: /* Register the default set of transfer encoders and decoders */
1.116 cvs 1416: HTTransferEncoderInit (encodings); /* chunks ??? */
1.4 cvs 1417: HTFormat_setTransferCoding (encodings);
1418:
1419: /* Register the default set of MIME header parsers */
1.74 cvs 1420: HTMIMEInit (); /* must be called again for language selector */
1.4 cvs 1421:
1422: /* Register the default set of Icons for directory listings */
1.27 cvs 1423: /*HTIconInit(NULL); *//* experimental */
1.4 cvs 1424:
1425: }
1426:
1.5 cvs 1427: /*----------------------------------------------------------------------
1.17 cvs 1428: AHTProfile_delete
1429: deletes the Amaya client profile.
1.5 cvs 1430: ----------------------------------------------------------------------*/
1.4 cvs 1431: #ifdef __STDC__
1432: static void AHTProfile_delete (void)
1433: #else
1434: static void AHTProfile_delete ()
1.7 cvs 1435: #endif /* __STDC__ */
1.4 cvs 1436: {
1.22 cvs 1437:
1438: /* free the Amaya global context */
1.74 cvs 1439: if (!converters)
1440: HTConversion_deleteAll (converters);
1441: if (!acceptTypes)
1442: HTConversion_deleteAll (acceptTypes);
1443: if (!encodings)
1444: HTCoding_deleteAll (encodings);
1445:
1446: HTList_delete (Amaya->docid_status);
1447: HTList_delete (Amaya->reqlist);
1448: TtaFreeMemory (Amaya);
1449: {
1.61 cvs 1450:
1.74 cvs 1451: if (HTLib_isInitialized ())
1452:
1.120 cvs 1453: #ifdef _WINDOWS
1.61 cvs 1454: HTEventTerminate ();
1.120 cvs 1455: #endif _WINDOWS;
1.74 cvs 1456:
1457: /* Clean up the persistent cache (if any) */
1.116 cvs 1458: #ifdef AMAYA_WWW_CACHE
1459: HTCacheTerminate ();
1460: #endif /* AMAYA_WWW_CACHE */
1.74 cvs 1461:
1462: /* Clean up all the global preferences */
1463: HTFormat_deleteAll ();
1464:
1465: /* Terminate libwww */
1466: HTLibTerminate ();
1467: }
1.4 cvs 1468: }
1469:
1.5 cvs 1470: /*----------------------------------------------------------------------
1.116 cvs 1471: AmayacontextInit
1472: initializes an internal Amaya context for our libwww interface
1473: ----------------------------------------------------------------------*/
1474: #ifdef __STDC__
1475: static void AmayaContextInit ()
1476: #else
1477: static void AmayaContextInit ()
1478: #endif
1479:
1480: {
1481: AmayaAlive = TRUE;
1482: /* Initialization of the global context */
1483: Amaya = (AmayaContext *) TtaGetMemory (sizeof (AmayaContext));
1484: Amaya->reqlist = HTList_new ();
1485: Amaya->docid_status = HTList_new ();
1486: Amaya->open_requests = 0;
1487: }
1488:
1489: /*----------------------------------------------------------------------
1.17 cvs 1490: QueryInit
1491: initializes the libwww interface
1.5 cvs 1492: ----------------------------------------------------------------------*/
1.4 cvs 1493: #ifdef __STDC__
1494: void QueryInit ()
1495: #else
1496: void QueryInit ()
1497: #endif
1498: {
1499:
1.116 cvs 1500: AmayaContextInit ();
1501:
1.4 cvs 1502: AHTProfile_newAmaya (HTAppName, HTAppVersion);
1.116 cvs 1503:
1.69 cvs 1504: /* New AHTBridge stuff */
1.4 cvs 1505:
1.116 cvs 1506: #ifdef _WINDOWS
1.120 cvs 1507: /*** AHTEventInit (); this was the call to my AHTEvent module HTEvtLst today***/
1.125 cvs 1508: HTEventInit ();
1.116 cvs 1509: #endif /* _WINDOWS */
1.72 cvs 1510:
1.123 cvs 1511: #ifndef _WINDOWS
1.116 cvs 1512: HTEvent_setRegisterCallback ((void *) AHTEvent_register);
1513: HTEvent_setUnregisterCallback ((void *) AHTEvent_unregister);
1.120 cvs 1514: HTTimer_registerSetTimerCallback ((void *) AMAYA_SetTimer);
1515: HTTimer_registerDeleteTimerCallback ((void *) AMAYA_DeleteTimer);
1.116 cvs 1516: #endif /* !_WINDOWS */
1517:
1518: #ifdef AMAYA_WWW_CACHE
1519: /***
1520: WWW_TraceFlag = CACHE_TRACE;
1521: ***/
1522: #endif
1.72 cvs 1523:
1.74 cvs 1524: #ifdef DEBUG_LIBWWW
1.116 cvs 1525: /* forwards error messages to our own function */
1526: WWW_TraceFlag = THD_TRACE;
1527: HTTrace_setCallback(LineTrace);
1.74 cvs 1528: #endif
1.4 cvs 1529:
1530: /* Trace activation (for debugging) */
1.7 cvs 1531: /*
1.116 cvs 1532: WWW_TraceFlag = SHOW_CORE_TRACE | SHOW_THREAD_TRACE | PROT_TRACE;
1533:
1.4 cvs 1534: WWW_TraceFlag = SHOW_APP_TRACE | SHOW_UTIL_TRACE |
1535: SHOW_BIND_TRACE | SHOW_THREAD_TRACE |
1536: SHOW_STREAM_TRACE | SHOW_PROTOCOL_TRACE |
1537: SHOW_URI_TRACE | SHOW_AUTH_TRACE | SHOW_ANCHOR_TRACE |
1538: SHOW_CORE_TRACE;
1539:
1.7 cvs 1540: */
1.4 cvs 1541:
1542: /***
1543: WWW_TraceFlag = SHOW_CORE_TRACE | SHOW_AUTH_TRACE | SHOW_ANCHOR_TRACE |
1544: SHOW_PROTOCOL_TRACE| SHOW_APP_TRACE | SHOW_UTIL_TRACE;
1545: ***/
1546:
1547: /* Setting up other user interfaces */
1548:
1549: /* Setting up different network parameters */
1.17 cvs 1550: /* Maximum number of simultaneous open sockets */
1.4 cvs 1551: HTNet_setMaxSocket (8);
1.75 cvs 1552: /* different network services timeouts */
1.109 cvs 1553: HTDNS_setTimeout (60);
1.120 cvs 1554: #ifdef __WINDOWS
1.75 cvs 1555: /* under windows, the libwww persistent socket handling has
1556: ** some bugs. The following line inhibits idle socket reusal.
1557: ** this is a bit slower, but avoids crashes and gives us time
1558: ** to distribute Amaya before having to patch up libwww.
1559: */
1.76 cvs 1560: HTHost_setPersistTimeout (-1L);
1.75 cvs 1561: #else
1.76 cvs 1562: HTHost_setPersistTimeout (60L);
1.75 cvs 1563: #endif /* _WINDOWS */
1.116 cvs 1564: HTHost_setEventTimeout (1000);
1.75 cvs 1565:
1.4 cvs 1566: #ifdef CATCH_SIG
1.18 cvs 1567: signal (SIGPIPE, SIG_IGN);
1.4 cvs 1568: #endif
1.15 cvs 1569: }
1570:
1.69 cvs 1571: #ifndef _WINDOWS
1.15 cvs 1572: /*----------------------------------------------------------------------
1.17 cvs 1573: LoopForStop
1574: a copy of the Thop event loop so we can handle the stop button.
1.69 cvs 1575: Not useful for windows code (Ramzi).
1.15 cvs 1576: ----------------------------------------------------------------------*/
1577: #ifdef __STDC__
1578: static int LoopForStop (AHTReqContext * me)
1579: #else
1580: static int LoopForStop (AHTReqContext * me)
1581: #endif
1582: {
1583:
1.25 cvs 1584: extern ThotAppContext app_cont;
1.51 cvs 1585: XEvent ev;
1586: XtInputMask status;
1.17 cvs 1587: int status_req = HT_OK;
1.15 cvs 1588:
1589: /* to test the async calls */
1.17 cvs 1590: /* Loop while waiting for new events, exists when the request is over */
1.15 cvs 1591: while (me->reqStatus != HT_ABORT &&
1592: me->reqStatus != HT_END &&
1.69 cvs 1593: me->reqStatus != HT_ERR) {
1.116 cvs 1594: if (!AmayaIsAlive ())
1.69 cvs 1595: /* Amaya was killed by one of the callback handlers */
1596: exit (0);
1597:
1598: status = XtAppPending (app_cont);
1599: if (status & XtIMXEvent) {
1600: XtAppNextEvent (app_cont, &ev);
1601: TtaHandleOneEvent (&ev);
1602: } else if (status & (XtIMAll & (~XtIMXEvent))) {
1603: XtAppProcessEvent (app_cont, (XtIMAll & (~XtIMXEvent)));
1604: } else {
1605: XtAppNextEvent (app_cont, &ev);
1606: TtaHandleOneEvent (&ev);
1607: }
1608: }
1.4 cvs 1609:
1.69 cvs 1610: switch (me->reqStatus) {
1611: case HT_ERR:
1612: case HT_ABORT:
1.15 cvs 1613: status_req = HT_ERROR;
1614: break;
1615:
1.69 cvs 1616: case HT_END:
1.15 cvs 1617: status_req = HT_OK;
1618: break;
1619:
1.69 cvs 1620: default:
1.15 cvs 1621: break;
1.69 cvs 1622: }
1.15 cvs 1623: return (status_req);
1.4 cvs 1624: }
1.69 cvs 1625: #endif /* _WINDOWS */
1.4 cvs 1626:
1.5 cvs 1627: /*----------------------------------------------------------------------
1.15 cvs 1628: QueryClose
1.21 cvs 1629: closes all existing threads, frees all non-automatically deallocated
1630: memory and then ends libwww.
1.5 cvs 1631: ----------------------------------------------------------------------*/
1.116 cvs 1632: void QueryClose ()
1.4 cvs 1633: {
1.24 cvs 1634:
1.116 cvs 1635: AmayaAlive = FALSE;
1.24 cvs 1636:
1.116 cvs 1637: /* remove all the handlers and callbacks that may output a message to
1638: a non-existent Amaya window */
1.21 cvs 1639:
1.116 cvs 1640: HTNet_deleteAfter (AHTLoadTerminate_handler);
1641: HTNet_deleteAfter (redirection_handler);
1642: HTAlertCall_deleteAll (HTAlert_global () );
1643: HTAlert_setGlobal ((HTList *) NULL);
1644: HTEvent_setRegisterCallback ((HTEvent_registerCallback *) NULL);
1645: HTEvent_setUnregisterCallback ((HTEvent_unregisterCallback *) NULL);
1646: #ifndef _WINDOWS
1647: /** need to erase all existing timers too **/
1648: HTTimer_registerSetTimerCallback (NULL);
1649: HTTimer_registerDeleteTimerCallback (NULL);
1650: #endif /* !_WINDOWS */
1651: HTHost_setActivateRequestCallback (NULL);
1652: Thread_deleteAll ();
1.21 cvs 1653:
1.116 cvs 1654: HTProxy_deleteAll ();
1655: HTNoProxy_deleteAll ();
1656: HTGateway_deleteAll ();
1657: AHTProfile_delete ();
1658: }
1659:
1660: /*----------------------------------------------------------------------
1661: NextNameValue
1662: ---------------------------------------------------------------------*/
1663: #ifdef __STDC__
1664: static char * NextNameValue (char ** pstr, char **name, char **value)
1665: #else
1666: static char * NextNameValue (pstr, name, value);
1667: char ** pstr;
1668: char **name;
1669: char **value;
1670: #endif /* __STDC__ */
1671: {
1672: char * p = *pstr;
1673: char * start = NULL;
1674: if (!pstr || !*pstr) return NULL;
1675:
1676: if (!*p) {
1677: *pstr = p;
1678: *name = NULL;
1679: *value = NULL;
1680: return NULL; /* No field */
1681: }
1682:
1683: /* Now search for the next '&' and ';' delimitators */
1684: start = p;
1685: while (*p && *p != '&' && *p != ';') p++;
1686: if (*p)
1687: *p++ = '\0';
1688: *pstr = p;
1689:
1690: /* Search for the name and value */
1691: *name = start;
1692: p = start;
1693:
1694: while(*p && *p != '=')
1695: p++;
1696: if (*p)
1697: *p++ = '\0';
1698: *value = p;
1699:
1700: return start;
1701: }
1702:
1703: /*----------------------------------------------------------------------
1704: PrepareFormdata
1705: ---------------------------------------------------------------------*/
1706: #ifdef __STDC__
1707: static HTAssocList * PrepareFormdata (char *string)
1708: #else
1709: static HTAssocList * PrepareFormdata (string)
1710: char *string;
1711: #endif /* __STDC__ */
1712: {
1713: char * tmp_string, * tmp_string_ptr;
1714: char * name;
1715: char * value;
1716: HTAssocList * formdata;
1717:
1718: if (!string)
1719: return NULL;
1720:
1721: /* store the ptr in another variable, as the original address will
1722: change
1723: */
1724:
1725: tmp_string_ptr = tmp_string = TtaStrdup (string);
1726: formdata = HTAssocList_new();
1727:
1728: while (*tmp_string)
1729: {
1730: NextNameValue (&tmp_string, &name, &value);
1731: HTAssocList_addObject(formdata,
1732: name, value);
1733: }
1734:
1735: TtaFreeMemory (tmp_string_ptr);
1736: return formdata;
1.4 cvs 1737: }
1738:
1.99 cvs 1739:
1740: /*----------------------------------------------------------------------
1741: InvokeGetObjectWWW_callback
1742: A simple function to invoke a callback function whenever there's an error
1743: in GetObjectWWW
1744: ---------------------------------------------------------------------*/
1745:
1.116 cvs 1746: #ifdef __STDC__
1747: void InvokeGetObjectWWW_callback (int docid, char *urlName, char *outputfile, TTcbf *terminate_cbf, void *context_tcbf, int status)
1.99 cvs 1748: #else
1.111 cvs 1749: void InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf, context_tcbf, status)
1.99 cvs 1750: int docid;
1751: char *urlName;
1752: char *outputfile;
1753: TTcbf *terminate_cbf;
1754: void *context_tcbf;
1.116 cvs 1755: #endif /* __STDC__ */
1.99 cvs 1756: {
1757: if (!terminate_cbf)
1758: return;
1759:
1.116 cvs 1760: (*terminate_cbf) (docid, status, urlName, outputfile,
1.99 cvs 1761: NULL, context_tcbf);
1762: }
1763:
1764:
1765:
1.5 cvs 1766: /*----------------------------------------------------------------------
1.15 cvs 1767: GetObjectWWW
1.17 cvs 1768: this function requests a resource designated by a URLname into a
1769: temporary filename. The download can come from a simple GET operation,
1770: or can come from POSTING/GETTING a form. In the latter
1771: case, the function receives a query string to send to the server.
1772:
1.5 cvs 1773: 4 file retrieval modes are proposed:
1774: AMAYA_SYNC : blocking mode
1775: AMAYA_ISYNC : incremental, blocking mode
1776: AMAYA_ASYNC : non-blocking mode
1777: AMAYA_IASYNC : incremental, non-blocking mode
1778:
1779: In the incremental mode, each time a package arrives, it will be
1780: stored in the temporary file. In addition, if an
1781: incremental_callback function is defined, this function will be
1782: called and handled a copy of the newly received data package.
1783: Finally, if a terminate_callback function is defined, it will be
1784: invoked when the request terminates. The caller of this function
1.4 cvs 1785: can define two different contexts to be passed to the callback
1786: functions.
1787:
1788: When the function is called with the SYNC mode, the function will
1789: return only when the requested file has been loaded.
1790: The ASYNC mode will immediately return after setting up the
1791: call.
1792:
1793: Notes:
1794: At the end of a succesful request, the urlName string contains the
1795: name of the actually retrieved URL. As a URL can change over the time,
1796: (e.g., be redirected elsewhere), it is advised that the function
1.17 cvs 1797: caller verify the value of the urlName variable at the end of
1.4 cvs 1798: a request.
1799:
1800: Inputs:
1801: - docid Document identifier for the set of objects being
1802: retrieved.
1803: - urlName The URL to be retrieved (MAX_URL_LENGTH chars length)
1804: - outputfile A pointer to an empty string of MAX_URL_LENGTH.
1805: - mode The retrieval mode.
1806: - incremental_cbf
1807: - context_icbf
1808: Callback and context for the incremental modes
1809: - terminate_cbf
1810: - context_icbf
1811: Callback and context for a terminate handler
1.17 cvs 1812: -error_html if TRUE, then display any server error message as an
1813: HTML document.
1.88 cvs 1814: - content_type a string
1815:
1.4 cvs 1816: Outputs:
1817: - urlName The URL that was retrieved
1818: - outputfile The name of the temporary file which holds the
1819: retrieved data. (Only in case of success)
1.88 cvs 1820: - if content_type wasn't NULL, it will contain a copy of the parameter
1821: sent in the HTTP answer
1.4 cvs 1822: Returns:
1823: HT_ERROR
1824: HT_OK
1.5 cvs 1825:
1826: ----------------------------------------------------------------------*/
1.4 cvs 1827: #ifdef __STDC__
1.127 cvs 1828: int GetObjectWWW (int docid, char* urlName, char* formdata,
1.116 cvs 1829: char* outputfile, int mode, TIcbf* incremental_cbf,
1830: void* context_icbf, TTcbf* terminate_cbf,
1.88 cvs 1831: void* context_tcbf, boolean error_html, char *content_type)
1.4 cvs 1832: #else
1.127 cvs 1833: int GetObjectWWW (docid, urlName, formdata, outputfile, mode,
1.116 cvs 1834: incremental_cbf, context_icbf,
1.88 cvs 1835: terminate_cbf, context_tcbf, error_html, content_type)
1.73 cvs 1836: int docid;
1837: char *urlName;
1.127 cvs 1838: char *formdata;
1.73 cvs 1839: char *outputfile;
1840: int mode;
1841: TIcbf *incremental_cbf;
1842: void *context_icbf;
1843: TTcbf *terminate_cbf;
1844: void *context_tcbf;
1845: boolean error_html;
1.88 cvs 1846: char *content_type;
1.4 cvs 1847: #endif
1848: {
1849: AHTReqContext *me;
1850: char *ref;
1.107 cvs 1851: int status, l;
1.114 cvs 1852: int tempsubdir;
1.7 cvs 1853:
1.116 cvs 1854: if (urlName == NULL || docid == 0 || outputfile == NULL)
1855: {
1856: /* no file to be loaded */
1857: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_BAD_URL), urlName);
1.69 cvs 1858:
1.116 cvs 1859: if (error_html)
1.69 cvs 1860: /* so we can show the error message */
1861: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.116 cvs 1862: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
1863: context_tcbf, HT_ERROR);
1864: return HT_ERROR;
1865: }
1.7 cvs 1866:
1.4 cvs 1867: /* do we support this protocol? */
1.116 cvs 1868: if (IsValidProtocol (urlName) == NO)
1869: {
1870: /* return error */
1871: outputfile[0] = EOS; /* file could not be opened */
1872: TtaSetStatus (docid, 1,
1873: TtaGetMessage (AMAYA, AM_GET_UNSUPPORTED_PROTOCOL),
1874: urlName);
1875:
1876: if (error_html)
1.69 cvs 1877: /* so we can show the error message */
1878: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.116 cvs 1879: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
1880: context_tcbf, HT_ERROR);
1881: return HT_ERROR;
1882: }
1.4 cvs 1883:
1.114 cvs 1884: /* we store CSS in subdir named 0; all the other files go to a subidr
1885: named after their own docid */
1886:
1887: tempsubdir = (mode & AMAYA_LOAD_CSS) ? 0 : docid;
1888:
1.116 cvs 1889: /* create a tempfilename */
1890: sprintf (outputfile, "%s%c%d%c%04dAM",
1891: TempFileDirectory, DIR_SEP, tempsubdir, DIR_SEP, object_counter);
1892: /* update the object_counter (used for the tempfilename) */
1.4 cvs 1893: object_counter++;
1.116 cvs 1894:
1.4 cvs 1895: /* normalize the URL */
1.45 cvs 1896: ref = AmayaParseUrl (urlName, "", AMAYA_PARSE_ALL);
1.4 cvs 1897: /* should we abort the request if we could not normalize the url? */
1.69 cvs 1898: if (ref == (char*) NULL || ref[0] == EOS) {
1899: /*error */
1900: outputfile[0] = EOS;
1901: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_BAD_URL), urlName);
1902:
1903: if (error_html)
1.116 cvs 1904: /* so we can show the error message */
1905: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.99 cvs 1906: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
1.116 cvs 1907: context_tcbf, HT_ERROR);
1.69 cvs 1908: return HT_ERROR;
1909: }
1.116 cvs 1910:
1.4 cvs 1911: /* verify if that file name existed */
1.9 cvs 1912: if (TtaFileExist (outputfile))
1.77 cvs 1913: TtaFileUnlink (outputfile);
1.116 cvs 1914:
1.4 cvs 1915: /* Initialize the request structure */
1916: me = AHTReqContext_new (docid);
1.116 cvs 1917: if (me == NULL)
1918: {
1919: outputfile[0] = EOS;
1920: /* need an error message here */
1921: TtaFreeMemory (ref);
1922: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
1923: context_tcbf, HT_ERROR);
1924: return HT_ERROR;
1925: }
1926:
1.4 cvs 1927: /* Specific initializations for POST and GET */
1.116 cvs 1928: if (mode & AMAYA_FORM_POST)
1929: {
1930: me->method = METHOD_POST;
1931: HTRequest_setMethod (me->request, METHOD_POST);
1932: }
1933: else
1934: {
1935: me->method = METHOD_GET;
1936: if (!HasKnownFileSuffix (ref))
1937: HTRequest_setConversion(me->request, acceptTypes, TRUE);
1938: }
1.93 cvs 1939:
1.116 cvs 1940: /* Common initialization for all HTML methods */
1.4 cvs 1941: me->mode = mode;
1942: me->error_html = error_html;
1943: me->incremental_cbf = incremental_cbf;
1944: me->context_icbf = context_icbf;
1945: me->terminate_cbf = terminate_cbf;
1946: me->context_tcbf = context_tcbf;
1.64 cvs 1947:
1.69 cvs 1948: /* for the async. request modes, we need to have our
1.4 cvs 1949: own copy of outputfile and urlname
1.116 cvs 1950: */
1.4 cvs 1951:
1.116 cvs 1952: if ((mode & AMAYA_ASYNC) || (mode & AMAYA_IASYNC))
1953: {
1954: l = strlen (outputfile);
1955: if (l > MAX_LENGTH)
1956: me->outputfile = TtaGetMemory (l + 2);
1957: else
1958: me->outputfile = TtaGetMemory (MAX_LENGTH + 2);
1959: strcpy (me->outputfile, outputfile);
1960: l = strlen (urlName);
1961: if (l > MAX_LENGTH)
1962: me->urlName = TtaGetMemory (l + 2);
1963: else
1964: me->urlName = TtaGetMemory (MAX_LENGTH + 2);
1965: strcpy (me->urlName, urlName);
1966: #ifdef _WINDOWS
1967: /* force windows ASYNC requests to always be non preemptive */
1968: HTRequest_setPreemptive (me->request, NO);
1969: #endif /*_WINDOWS */
1970: } /* AMAYA_ASYNC mode */
1971: else
1972: #ifdef _WINDOWS
1973: {
1974: me->outputfile = outputfile;
1975: me->urlName = urlName;
1976: /* force windows SYNC requests to always be non preemptive */
1.123 cvs 1977: /* @@@ verify this */
1.116 cvs 1978: HTRequest_setPreemptive (me->request, YES);
1979: }
1980: #else /* !_WINDOWS */
1981: {
1982: me->outputfile = outputfile;
1983: me->urlName = urlName;
1984: }
1985: /***
1.57 cvs 1986: Change for taking into account the stop button:
1987: The requests will be always asynchronous, however, if mode=AMAYA_SYNC,
1988: we will loop until the document has been received or a stop signal
1989: generated
1.77 cvs 1990: ****/
1.116 cvs 1991: HTRequest_setPreemptive (me->request, NO);
1992: #endif /* _WINDOWS */
1.61 cvs 1993:
1994: /* prepare the URLname that will be displayed in teh status bar */
1995: ChopURL (me->status_urlName, me->urlName);
1.77 cvs 1996: TtaSetStatus (me->docid, 1,
1997: TtaGetMessage (AMAYA, AM_FETCHING),
1998: me->status_urlName);
1.4 cvs 1999:
2000: me->anchor = (HTParentAnchor *) HTAnchor_findAddress (ref);
1.45 cvs 2001: TtaFreeMemory (ref);
1.4 cvs 2002:
1.114 cvs 2003: if (mode & AMAYA_NOCACHE)
1.116 cvs 2004: HTRequest_setReloadMode (me->request, HT_CACHE_FLUSH);
2005:
2006: /* prepare the query string and format for POST */
2007: if (mode & AMAYA_FORM_POST)
1.114 cvs 2008: {
1.116 cvs 2009: HTAnchor_setFormat ((HTParentAnchor *) me->anchor,
2010: HTAtom_for ("application/x-www-form-urlencoded"));
2011: HTAnchor_setLength ((HTParentAnchor *) me->anchor, me->block_size);
2012: HTRequest_setEntityAnchor (me->request, me->anchor);
2013: }
1.114 cvs 2014:
1.127 cvs 2015: /* create the formdata element for libwww */
2016: if (formdata)
2017: me->formdata = PrepareFormdata (formdata);
2018:
1.116 cvs 2019: /* do the request */
2020: if (mode & AMAYA_FORM_POST)
1.119 cvs 2021: {
2022: /* this call doesn't give back a boolean */
2023: HTParentAnchor * posted = NULL;
2024:
2025: posted = HTPostFormAnchor (me->formdata, (HTAnchor *) me->anchor,
2026: me->request);
2027: status = posted ? YES : NO;
2028: }
1.127 cvs 2029: else if (formdata)
2030: status = HTGetFormAnchor(me->formdata, (HTAnchor *) me->anchor,
2031: me->request);
1.116 cvs 2032: else
1.77 cvs 2033: status = HTLoadAnchor ((HTAnchor *) me->anchor, me->request);
1.69 cvs 2034:
1.123 cvs 2035: #ifndef _WINDOWS
2036: /* @@@ may need some special windows error msg here */
1.116 cvs 2037: /* control the errors */
2038: if (status != HT_OK
2039: && HTError_hasSeverity (HTRequest_error (me->request), ERR_NON_FATAL))
2040: status = HT_ERROR;
1.123 cvs 2041: #endif /* !_WINDOWS */
2042: /* @@@test the effect of HTRequest_kill () */
1.85 cvs 2043:
1.116 cvs 2044: #if 0
2045: /** *this should go to term_d @@@@ */
2046: if (me->reqStatus == HT_CACHE)
1.93 cvs 2047: {
1.116 cvs 2048: AHTPrintPendingRequestStatus (me->docid, YES);
2049: /* free the memory allocated for async requests */
2050: InvokeGetObjectWWW_callback (docid, urlName, outputfile,
2051: terminate_cbf, context_tcbf, HT_OK);
2052: AHTReqContext_delete (me);
2053: return HT_OK;
1.93 cvs 2054: }
1.116 cvs 2055: #endif
1.4 cvs 2056:
1.116 cvs 2057: if (status == HT_ERROR)
2058: /* the request invocation failed */
2059: {
2060: /* show an error message on the status bar */
2061: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
2062: TtaSetStatus (docid, 1,
2063: TtaGetMessage (AMAYA, AM_CANNOT_LOAD),
2064: urlName);
2065: if (me->reqStatus == HT_NEW)
2066: /* manually invoke the last processing that usually gets done
2067: in a succesful request */
2068: InvokeGetObjectWWW_callback (docid, urlName, outputfile,
2069: terminate_cbf, context_tcbf, HT_ERROR);
2070: /* terminate_handler wasn't called */
2071: if (mode & AMAYA_SYNC || mode & AMAYA_ISYNC)
2072: AHTReqContext_delete (me);
2073: }
2074: else
2075: /* end treatment for SYNC requests */
1.120 cvs 2076: if ((mode & AMAYA_SYNC) || (mode & AMAYA_ISYNC))
2077: {
1.116 cvs 2078: #ifndef _WINDOWS
1.120 cvs 2079: /* part of the UNIX stop button handler */
2080: if (status != HT_ERROR)
2081: status = LoopForStop (me);
1.116 cvs 2082: #endif /* _!WINDOWS */
1.120 cvs 2083: /* @@@ this doesn't seem correct ... me->request may not exist ... */
2084: if (!HTRequest_kill (me->request))
2085: AHTReqContext_delete (me);
2086: }
2087: return (status);
1.4 cvs 2088: }
2089:
1.5 cvs 2090: /*----------------------------------------------------------------------
1.17 cvs 2091: PutObjectWWW
2092: frontend for uploading a resource to a URL. This function downloads
2093: a file to be uploaded into memory, it then calls UploadMemWWW to
2094: finish the job.
2095:
1.5 cvs 2096: 2 upload modes are proposed:
2097: AMAYA_SYNC : blocking mode
2098: AMAYA_ASYNC : non-blocking mode
2099:
1.4 cvs 2100: When the function is called with the SYNC mode, the function will
2101: return only when the file has been uploaded.
2102: The ASYNC mode will immediately return after setting up the
2103: call. Furthermore, at the end of an upload, the ASYNC mode will
2104: call back terminate_cbf, handling it the context defined in
2105: context_tcbf.
2106:
2107: Notes:
2108: At the end of a succesful request, the urlName string contains the
2109: name of the actually uploaded URL. As a URL can change over the time,
2110: (e.g., be redirected elsewhere), it is advised that the function
2111: caller verifies the value of the urlName variable at the end of
2112: a request.
2113:
2114: Inputs:
2115: - docid Document identifier for the set of objects being
2116: retrieved.
2117: - fileName A pointer to the local file to upload
2118: - urlName The URL to be uploaded (MAX_URL_LENGTH chars length)
2119: - mode The retrieval mode.
2120: - terminate_cbf
2121: - context_icbf
2122: Callback and context for a terminate handler
2123:
2124: Outputs:
2125: - urlName The URL that was uploaded
2126:
2127: Returns:
2128: HT_ERROR
2129: HT_OK
1.5 cvs 2130: ----------------------------------------------------------------------*/
1.4 cvs 2131: #ifdef __STDC__
1.27 cvs 2132: int PutObjectWWW (int docid, char *fileName, char *urlName, int mode, PicType contentType,
1.4 cvs 2133: TTcbf * terminate_cbf, void *context_tcbf)
2134: #else
1.26 cvs 2135: int PutObjectWWW (docid, urlName, fileName, mode, contentType,
1.4 cvs 2136: ,terminate_cbf, context_tcbf)
2137: int docid;
2138: char *urlName;
2139: char *fileName;
2140: int mode;
1.27 cvs 2141: PicType contentType;
1.4 cvs 2142: TTcbf *terminate_cbf;
2143: void *context_tcbf;
2144:
1.116 cvs 2145: #endif /* __STDC__ */
1.4 cvs 2146: {
1.116 cvs 2147: AHTReqContext *me;
1.4 cvs 2148: int status;
2149: int fd;
2150: struct stat file_stat;
1.116 cvs 2151: char *fileURL;
1.4 cvs 2152:
1.33 cvs 2153: AmayaLastHTTPErrorMsg [0] = EOS;
2154:
1.116 cvs 2155: if (urlName == NULL || docid == 0 || fileName == NULL
2156: || !TtaFileExist (fileName))
1.4 cvs 2157: /* no file to be uploaded */
2158: return HT_ERROR;
2159:
2160: /* do we support this protocol? */
1.7 cvs 2161: if (IsValidProtocol (urlName) == NO)
2162: {
2163: /* return error */
1.77 cvs 2164: TtaSetStatus (docid, 1,
2165: TtaGetMessage (AMAYA, AM_PUT_UNSUPPORTED_PROTOCOL),
1.7 cvs 2166: urlName);
2167: return HT_ERROR;
2168: }
1.116 cvs 2169:
2170: /* verify the file's size */
2171: #ifndef _WINDOWS
1.7 cvs 2172: if ((fd = open (fileName, O_RDONLY)) == -1)
1.116 cvs 2173: #else
1.74 cvs 2174: if ((fd = open (fileName, _O_RDONLY | _O_BINARY)) == -1)
1.116 cvs 2175: #endif /* _WINDOWS */
1.7 cvs 2176: {
2177: /* if we could not open the file, exit */
2178: /*error msg here */
2179: return (HT_ERROR);
2180: }
1.4 cvs 2181:
2182: fstat (fd, &file_stat);
1.116 cvs 2183: close (fd);
1.4 cvs 2184:
1.7 cvs 2185: if (file_stat.st_size == 0)
2186: {
2187: /* file was empty */
2188: /*errmsg here */
2189: return (HT_ERROR);
2190: }
1.116 cvs 2191:
2192: /* prepare the request context */
1.4 cvs 2193:
2194: if (THD_TRACE)
1.116 cvs 2195: fprintf (stderr, "file size == %u\n", (unsigned) file_stat.st_size);
1.4 cvs 2196:
2197: me = AHTReqContext_new (docid);
2198:
1.7 cvs 2199: if (me == NULL)
2200: {
2201: /* need an error message here */
2202: TtaHandlePendingEvents ();
2203: return (HT_ERROR);
2204: }
1.116 cvs 2205:
1.4 cvs 2206: me->mode = mode;
2207: me->incremental_cbf = (TIcbf *) NULL;
2208: me->context_icbf = (void *) NULL;
2209: me->terminate_cbf = terminate_cbf;
2210: me->context_tcbf = context_tcbf;
2211: me->urlName = urlName;
1.116 cvs 2212: me->block_size = file_stat.st_size;
1.17 cvs 2213: /* select the parameters that distinguish a PUT from a GET/POST */
1.4 cvs 2214: me->method = METHOD_PUT;
2215: HTRequest_setMethod (me->request, METHOD_PUT);
2216: me->output = stdout;
1.17 cvs 2217: /* we are not expecting to receive any input from the server */
2218: me->outputfile = (char *) NULL;
1.4 cvs 2219:
1.116 cvs 2220: fileURL = HTParse (fileName, "file:/", PARSE_ALL);
2221: me->anchor = (HTParentAnchor *) HTAnchor_findAddress (fileURL);
2222: HT_FREE (fileURL);
1.114 cvs 2223:
1.28 cvs 2224: /* Set the Content-Type of the file we are uploading */
1.77 cvs 2225: HTAnchor_setFormat ((HTParentAnchor *) me->anchor,
2226: AHTGuessAtom_for (me->urlName, contentType));
1.116 cvs 2227: HTAnchor_setLength ((HTParentAnchor *) me->anchor, me->block_size);
1.17 cvs 2228:
1.4 cvs 2229: HTRequest_setEntityAnchor (me->request, me->anchor);
1.116 cvs 2230: #ifdef _WINDOWS
2231: HTRequest_setPreemptive (me->request, YES);
2232: #else
2233: HTRequest_setPreemptive (me->request, NO);
2234: #endif /* _WINDOWS */
2235:
2236: if (mode & AMAYA_NOCACHE)
2237: HTRequest_setReloadMode (me->request, HT_CACHE_FLUSH);
2238:
1.74 cvs 2239: /* prepare the URLname that will be displayed in teh status bar */
2240: ChopURL (me->status_urlName, me->urlName);
2241: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_REMOTE_SAVING),
2242: me->status_urlName);
1.114 cvs 2243:
1.116 cvs 2244: status = HTPutDocumentAbsolute (me->anchor, urlName, me->request);
1.4 cvs 2245:
1.116 cvs 2246: if (status != HT_ERROR && me->reqStatus != HT_ERR)
1.7 cvs 2247: {
2248: /* part of the stop button handler */
2249: if ((mode & AMAYA_SYNC) || (mode & AMAYA_ISYNC))
2250: {
1.120 cvs 2251: #ifndef _WINDOWS
1.7 cvs 2252: status = LoopForStop (me);
1.120 cvs 2253: #endif /* _WINDOWS */
2254: if (!HTRequest_kill (me->request))
2255: AHTReqContext_delete (me);
1.7 cvs 2256: }
1.15 cvs 2257: }
1.116 cvs 2258: else
2259: {
2260: if (! HTRequest_kill (me->request))
2261: AHTReqContext_delete (me);
2262: }
2263:
2264: TtaHandlePendingEvents ();
1.90 cvs 2265:
1.116 cvs 2266: return status;
1.28 cvs 2267: }
1.4 cvs 2268:
1.5 cvs 2269: /*----------------------------------------------------------------------
1.17 cvs 2270: Stop Request
2271: stops (kills) all active requests associated with a docid
1.5 cvs 2272: ----------------------------------------------------------------------*/
1.4 cvs 2273: #ifdef __STDC__
2274: void StopRequest (int docid)
2275: #else
2276: void StopRequest (docid)
2277: int docid;
2278: #endif
2279: {
2280: HTList *cur;
2281: AHTDocId_Status *docid_status;
2282: AHTReqContext *me;
1.108 cvs 2283: #ifdef DEBUG_LIBWWW
2284: int open_requests;
2285: #endif /* DEBUG_LIBWWW */
1.116 cvs 2286:
2287:
2288: if (Amaya && libDoStop)
1.7 cvs 2289: {
1.100 cvs 2290: #ifdef DEBUG_LIBWWW
1.116 cvs 2291: fprintf (stderr, "StopRequest: number of Amaya requests : %d\n",
2292: Amaya->open_requests);
1.100 cvs 2293: #endif /* DEBUG_LIBWWW */
2294:
1.116 cvs 2295: docid_status = (AHTDocId_Status *) GetDocIdStatus (docid,
2296: Amaya->docid_status);
2297: /* verify if there are any requests at all associated with docid */
2298:
2299: if (docid_status == (AHTDocId_Status *) NULL)
2300: return;
1.108 cvs 2301: #ifdef DEBUG_LIBWWW
1.116 cvs 2302: open_requests = docid_status->counter;
1.108 cvs 2303: #endif /* DEBUG_LIBWWW */
1.4 cvs 2304:
1.116 cvs 2305: /* First, kill all pending requests */
2306: /* We first inhibit the activation of pending requests */
2307: HTHost_disable_PendingReqLaunch ();
2308: cur = Amaya->reqlist;
2309: while ((me = (AHTReqContext *) HTList_nextObject (cur)))
2310: {
2311: if (me->docid == docid && me->reqStatus == HT_NEW)
2312: {
2313: /* If we have an ASYNC request, we kill it.
2314: ** If it's a SYNC request, we just mark it as aborted
2315: */
2316: me->reqStatus = HT_ABORT;
2317: if (((me->mode & AMAYA_IASYNC)
2318: || (me->mode & AMAYA_ASYNC))
2319: && !(me->mode & AMAYA_ASYNC_SAFE_STOP))
2320: {
2321: /* delete the amaya/libwww request context */
2322: if (!HTRequest_kill (me->request))
2323: /* if the above function returns NO (0), it means
2324: ** that there was no network context and that
2325: ** terminate_handler wasn't called. So, we erase
2326: ** this context ourselves
2327: */
1.96 cvs 2328: AHTReqContext_delete (me);
1.116 cvs 2329:
2330: cur = Amaya->reqlist;
1.108 cvs 2331: #ifdef DEBUG_LIBWWW
1.116 cvs 2332: /* update the number of open requests */
2333: open_requests--;
1.108 cvs 2334: #endif /* DEBUG_LIBWWW */
1.116 cvs 2335: }
2336: }
2337: }
1.108 cvs 2338:
1.85 cvs 2339: /* enable the activation of pending requests */
1.116 cvs 2340: HTHost_enable_PendingReqLaunch ();
1.85 cvs 2341:
1.116 cvs 2342: cur = Amaya->reqlist;
2343: while ((me = (AHTReqContext *) HTList_nextObject (cur)))
2344: {
2345: if (me->docid == docid)
2346: {
2347: /* kill this request */
2348:
2349: switch (me->reqStatus)
2350: {
2351: case HT_ABORT:
1.108 cvs 2352: #ifdef DEBUG_LIBWWW
1.116 cvs 2353: fprintf (stderr, "Stop: url %s says abort", me->urlName);
1.108 cvs 2354: #endif /* DEBUG_LIBWWW */
1.116 cvs 2355: break;
1.100 cvs 2356:
1.116 cvs 2357: case HT_END:
2358: #ifdef DEBUG_LIBWWW
2359: fprintf (stderr, "Stop: url %s says end", me->urlName);
2360: #endif /* DEBUG_LIBWWW */
2361: break;
2362:
2363: case HT_BUSY:
2364: me->reqStatus = HT_ABORT;
1.108 cvs 2365: #ifdef DEBUG_LIBWWW
1.116 cvs 2366: fprintf (stderr, "Stop: url %s going from busy to abort\n",
2367: me->urlName);
1.108 cvs 2368: #endif /* DEBUG_LIBWWW */
1.116 cvs 2369: break;
1.100 cvs 2370:
1.116 cvs 2371: case HT_NEW_PENDING:
2372: case HT_WAITING:
2373: default:
1.108 cvs 2374: #ifdef DEBUG_LIBWWW
1.116 cvs 2375: fprintf (stderr, "Stop: url %s says NEW_PENDING, WAITING",
2376: me->urlName);
1.108 cvs 2377: #endif /* DEBUG_LIBWWW */
1.116 cvs 2378: me->reqStatus = HT_ABORT;
2379:
2380: if (((me->mode & AMAYA_IASYNC)
2381: || (me->mode & AMAYA_ASYNC))
2382: && !(me->mode & AMAYA_ASYNC_SAFE_STOP))
2383: {
2384: /* delete the amaya/libwww request context */
2385: if (!HTRequest_kill (me->request))
2386: /* if the above function returns NO (0), it means
2387: ** that there was no network context and that
2388: ** terminate_handler wasn't called. So, we erase
2389: ** this context ourselves
2390: */
2391: AHTReqContext_delete (me);
1.96 cvs 2392:
1.116 cvs 2393: cur = Amaya->reqlist;
1.108 cvs 2394: #ifdef DEBUG_LIBWWW
1.116 cvs 2395: /* update the number of open requests */
2396: open_requests--;
1.108 cvs 2397: #endif /* DEBUG_LIBWWW */
1.116 cvs 2398: }
2399:
1.108 cvs 2400: #ifdef DEBUG_LIBWWW
1.116 cvs 2401: if (HTHost_isIdle (reqHost))
2402: fprintf (stderr, "StopRequst: After killing, Host is "
2403: "idle\n");
2404: else
2405: fprintf (stderr, "StopRequest: After killing, Host isn't "
2406: "idle\n");
1.108 cvs 2407: #endif /* DEBUG_LIBWWW */
1.95 cvs 2408:
1.108 cvs 2409: #ifdef DEBUG_LIBWWW
1.116 cvs 2410: open_requests--;
1.108 cvs 2411: #endif /* DEBUG_LIBWWW */
1.93 cvs 2412: break;
2413:
1.116 cvs 2414: } /* switch */
2415: } /* if me docid */
2416: } /* while */
2417:
1.100 cvs 2418: #ifdef DEBUG_LIBWWW
1.116 cvs 2419: fprintf (stderr, "StopRequest: number of Amaya requests : "
2420: "%d\n", Amaya->open_requests);
1.100 cvs 2421: #endif /* DEBUG_LIBWWW */
1.7 cvs 2422: } /* if amaya open requests */
1.93 cvs 2423:
1.85 cvs 2424: } /* StopRequest */
1.17 cvs 2425:
2426:
1.105 cvs 2427: /*----------------------------------------------------------------------
2428: AmayaIsAlive
2429: returns the status of the AmayaAlive flag
2430: ----------------------------------------------------------------------*/
2431: #ifdef __STDC__
2432: boolean AmayaIsAlive (void)
2433: #else
2434: boolean AmayaIsAlive ()
2435: #endif /* _STDC_ */
2436: {
2437: return AmayaAlive;
2438: }
1.116 cvs 2439:
1.69 cvs 2440: #endif /* AMAYA_JAVA */
1.77 cvs 2441:
1.116 cvs 2442: /*
2443: end of Module query.c
2444: */
1.17 cvs 2445:
2446:
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