Annotation of Amaya/amaya/query.c, revision 1.192
1.14 cvs 1: /*
2: *
3: * (c) COPYRIGHT MIT and INRIA, 1996.
4: * Please first read the full copyright statement in file COPYRIGHT.
1.156 cvs 5: *
1.14 cvs 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:
1.185 cvs 22: #ifdef _WINDOWS
23: #include <string.h>
1.130 cvs 24: #endif /* !_WINDOWS */
1.116 cvs 25: #define AMAYA_WWW_CACHE
1.168 cvs 26: #define AMAYA_LOST_UPDATE
1.116 cvs 27:
1.188 cvs 28: #ifdef _WINDOWS
29: #define CACHE_DIR_NAME "\\libwww-cache\\"
30: #else
31: #define CACHE_DIR_NAME "/libwww-cache/"
32: #endif /* _WINDOWS */
1.176 cvs 33: #define DEFAULT_CACHE_SIZE 10
34: #define DEFAULT_MAX_CACHE_ENTRY_SIZE 3
1.177 cvs 35: #define DEFAULT_MAX_SOCKET 32
1.176 cvs 36: #define DEFAULT_DNS_TIMEOUT 1800L
1.151 cvs 37: #define DEFAULT_PERSIST_TIMEOUT 60L
1.165 cvs 38: #define DEFAULT_NET_EVENT_TIMEOUT 60000
1.116 cvs 39:
1.12 cvs 40: /* Amaya includes */
1.25 cvs 41: #define THOT_EXPORT extern
1.4 cvs 42: #include "amaya.h"
1.130 cvs 43: #include <sys/types.h>
1.70 cvs 44: #include <fcntl.h>
1.140 cvs 45: #include "HTEvtLst.h"
1.157 cvs 46: #include "HTAABrow.h"
1.7 cvs 47:
1.141 cvs 48: #if defined(__svr4__) || defined (_AIX)
1.4 cvs 49: #define CATCH_SIG
50: #endif
51:
52: /* local structures coming from libwww and which are
1.17 cvs 53: not found in any .h file
1.7 cvs 54: */
1.68 cvs 55:
1.7 cvs 56: struct _HTStream
57: {
1.15 cvs 58: const HTStreamClass *isa;
59: FILE *fp;
1.45 cvs 60: BOOL leave_open; /* Close file when TtaFreeMemory? */
1.15 cvs 61: char *end_command; /* Command to execute */
62: BOOL remove_on_close; /* Remove file? */
63: char *filename; /* Name of file */
64: HTRequest *request; /* saved for callback */
65: HTRequestCallback *callback;
1.7 cvs 66: };
67:
1.15 cvs 68:
1.7 cvs 69: struct _HTError
70: {
71: HTErrorElement element; /* Index number into HTError */
72: HTSeverity severity; /* A la VMS */
73: BOOL ignore; /* YES if msg should not go to user */
74: void *par; /* Explanation, e.g. filename */
75: int length; /* For copying by generic routine */
76: char *where; /* Which function */
77: };
78:
1.4 cvs 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 */
1.151 cvs 87: static HTList *transfer_encodings = NULL;
88: static HTList *content_encodings = NULL;
1.16 cvs 89: static int object_counter = 0; /* loaded objects counter */
1.191 cvs 90: static ThotBool AmayaAlive_flag; /* set to 1 if the application is active;
1.140 cvs 91: 0 if we have killed */
1.191 cvs 92: static ThotBool CanDoStop_flag; /* set to 1 if we can do a stop, 0
1.140 cvs 93: if we're inside a critical section */
1.128 cvs 94: #ifdef AMAYA_WWW_CACHE
1.130 cvs 95: static int fd_cachelock; /* open handle to the .lock cache file */
96: #endif /* AMAYA_WWW_CACHE */
1.4 cvs 97:
1.15 cvs 98: #include "answer_f.h"
99: #include "query_f.h"
100: #include "AHTURLTools_f.h"
101: #include "AHTBridge_f.h"
102: #include "AHTMemConv_f.h"
103: #include "AHTFWrite_f.h"
1.4 cvs 104:
1.116 cvs 105: /* prototypes */
106:
107: #ifdef __STDC__
1.128 cvs 108: static void RecCleanCache (char *dirname);
1.123 cvs 109: #ifdef _WINDOWS
1.70 cvs 110: int WIN_Activate_Request (HTRequest* , HTAlertOpcode, int, const char*, void*, HTAlertPar*);
1.116 cvs 111: #endif /* _WINDOWS */
1.70 cvs 112: #else
1.128 cvs 113: static void RecCleanCache (/* char *dirname */);
1.123 cvs 114: #ifdef _WINDOWS
1.128 cvs 115: int WIN_Activate_Request (/* HTRequest* , HTAlertOpcode, int, const char*, void*, HTAlertPar* */);
1.116 cvs 116: #endif /* _WINDOWS */
1.70 cvs 117: #endif /* __STDC__ */
1.116 cvs 118:
1.15 cvs 119:
1.130 cvs 120: #ifdef AMAYA_WWW_CACHE
121: /***************************************************************
122: lock functions, used to avoid concurrent use of the cache
123: Mostly based on W. Richard Stevens' APUE book.
124: ***************************************************************/
125: /*----------------------------------------------------------------------
126: set_cachelock
127: sets a write lock on filename.
128: Returns -1 in case of failure, otherwise, it'll open a handle on
129: filename and fd_cachelock will take its value.
130: ----------------------------------------------------------------------*/
131: #ifdef __STDC__
132: static int set_cachelock (char *filename)
133: #else
134: static int set_cachelock (filename)
135: char *filename;
136: #endif /* __STDC__ */
137: {
1.188 cvs 138: int status;
1.130 cvs 139: #ifdef _WINDOWS
1.188 cvs 140:
141: status = TtaFileExist (filename);
142: return ((status) ? 0 : -1);
1.130 cvs 143: #else
144: struct flock lock;
145:
146: lock.l_type = F_WRLCK;
147: lock.l_start = 0;
148: lock.l_whence = SEEK_SET;
149: lock.l_len = 0;
150:
151: fd_cachelock = open (filename, O_WRONLY);
152:
153: if (fd_cachelock == -1)
154: status = -1;
155: else
156: status = fcntl(fd_cachelock, F_SETLK, &lock);
157:
158: if (status == -1)
1.190 cvs 159: {
1.179 cvs 160: if (fd_cachelock > 0)
1.190 cvs 161: close (fd_cachelock);
1.179 cvs 162: fd_cachelock = 0;
1.178 cvs 163: }
1.130 cvs 164: return (status);
165: #endif /* _WINDOWS */
166: }
167:
168: /*----------------------------------------------------------------------
169: clear_cachelock
170: remove the write lock set on a filename.
171: It'll close the fd handle on filename and reset *fd to 0.
172: ----------------------------------------------------------------------*/
173: #ifdef __STDC__
174: static int clear_cachelock (void)
175: #else
176: static int clear_cachelock ()
177: int *fd;
178: #endif /* __STDC__ */
179: {
180: #ifdef _WINDOWS
181: return 0;
182: #else
183: int status;
184:
1.178 cvs 185: if (!fd_cachelock)
1.130 cvs 186: return (-1);
187:
1.178 cvs 188: status = close (fd_cachelock);
1.130 cvs 189: fd_cachelock = 0;
190:
191: return (status);
192: #endif /* _WINDOWS */
193: }
194:
195: /*----------------------------------------------------------------------
196: test_cachelock
197: returns 0 if a fd is not locked by other process, otherwise
198: returns the pid of the process who has the lock
199: ----------------------------------------------------------------------*/
200: #ifdef __STDC__
201: static int test_cachelock (char *filename)
202: #else
203: static int test_cachelock (filename)
204: char *filename;
205: #endif __STDC__
206: {
207: #ifdef _WINDOWS
1.185 cvs 208: /* if the lock is set, we can't unlink the file under Windows */
1.188 cvs 209: if (!TtaFileUnlink (filename))
210: return 0;
211: else
1.185 cvs 212: return -1;
1.130 cvs 213: #else
214: struct flock lock;
215: int fd, status;
216:
217: lock.l_type = F_WRLCK;
218: lock.l_start = 0;
219: lock.l_whence = SEEK_SET;
220: lock.l_len = 0;
221:
222: fd = open (filename, O_WRONLY);
223:
224: if (fd < 0)
225: return (-1);
226: /* is this file locked ? */
227: status = fcntl (fd, F_GETLK, &lock);
228: close (fd);
229:
230: if (status < 0)
231: return (-1);
232:
233: if (lock.l_type == F_UNLCK)
234: return (0); /* false, region is not locked by another proc */
235: return (lock.l_pid); /* true, return pid of lock owner */
236: #endif /* _WINDOWS */
237: }
238:
239: #endif /* AMAYA_WWW_CACHE */
240:
1.15 cvs 241: /*----------------------------------------------------------------------
1.17 cvs 242: GetDocIdStatus
243: gets the status associated to a docid
1.15 cvs 244: ----------------------------------------------------------------------*/
245: #ifdef __STDC__
246: AHTDocId_Status *GetDocIdStatus (int docid, HTList * documents)
247: #else
248: AHTDocID_Status *GetDocIdStatus (docid, documents)
249: int docid;
250: HTList *documents;
251:
252: #endif
253: {
254: AHTDocId_Status *me;
255: HTList *cur;
256:
257: if (documents)
258: {
259: cur = documents;
260:
261: while ((me = (AHTDocId_Status *) HTList_nextObject (cur)))
262: {
263: if (me->docid == docid)
264: return (me);
1.18 cvs 265: }
266: }
1.15 cvs 267: return (AHTDocId_Status *) NULL;
268:
269: }
270:
1.5 cvs 271: /*----------------------------------------------------------------------
1.27 cvs 272: AHTGuessAtom_for
273: Converts an Amaya type descriptor into the equivalent MIME type.
274: ----------------------------------------------------------------------*/
275: #ifdef __STDC__
276: static HTAtom *AHTGuessAtom_for (char *urlName, PicType contentType)
277: #else
278: static HTAtom *AHTGuessAtom_for (urlName, contentType)
279: char *urlName;
280: PicType contentType;
281: #endif
282: {
283: HTAtom *atom;
284: char *filename;
1.160 cvs 285: HTEncoding enc = NULL;
286: HTEncoding cte = NULL;
287: HTLanguage lang = NULL;
1.50 cvs 288: double quality = 1.0;
1.27 cvs 289:
290: switch (contentType)
291: {
292: case xbm_type:
293: atom = HTAtom_for("image/xbm");
294: break;
295: case eps_type:
1.35 cvs 296: atom = HTAtom_for("application/postscript");
1.27 cvs 297: break;
298: case xpm_type:
299: atom = HTAtom_for("image/xpm");
300: break;
301: case gif_type:
302: atom = HTAtom_for("image/gif");
303: break;
304: case jpeg_type:
305: atom = HTAtom_for("image/jpeg");
306: break;
307: case png_type:
308: atom = HTAtom_for("image/png");
309: break;
310: case unknown_type:
311: default:
312: /*
313: ** Amaya could not detect the type, so
314: ** we try to use the filename's suffix to do so.
315: */
1.45 cvs 316: filename = AmayaParseUrl (urlName, "", AMAYA_PARSE_PATH | AMAYA_PARSE_PUNCTUATION);
1.27 cvs 317: HTBind_getFormat (filename, &atom, &enc, &cte, &lang, &quality);
1.45 cvs 318: TtaFreeMemory (filename);
1.27 cvs 319: if (atom == WWW_UNKNOWN)
320: /*
321: ** we could not identify the suffix, so we assign it
322: ** a default type
323: */
324: atom = HTAtom_for ("text/html");
325: break;
326: }
327:
328: return atom;
329: }
330:
331: /*----------------------------------------------------------------------
1.17 cvs 332: AHTReqContext_new
333: create a new Amaya Context Object and update the global Amaya
334: request status.
1.5 cvs 335: ----------------------------------------------------------------------*/
1.4 cvs 336: #ifdef __STDC__
337: static AHTReqContext *AHTReqContext_new (int docid)
338: #else
339: static AHTReqContext *AHTReqContext_new (docid)
340: int docid;
341:
342: #endif
343: {
344: AHTReqContext *me;
345: AHTDocId_Status *docid_status;
346:
347: if ((me = (AHTReqContext *) TtaGetMemory (sizeof (AHTReqContext))) == NULL)
1.116 cvs 348: outofmem (__FILE__, "AHTReqContext_new");
349:
350: /* clear the structure */
351: memset ((void *) me, 0, sizeof (AHTReqContext));
1.4 cvs 352:
1.81 cvs 353: /* Bind the Context object together with the Request Object */
354: me->request = HTRequest_new ();
355:
1.80 cvs 356: /* clean the associated file structure) */
1.79 cvs 357: HTRequest_setOutputStream (me->request, NULL);
1.81 cvs 358:
1.4 cvs 359: /* Initialize the other members of the structure */
1.17 cvs 360: me->reqStatus = HT_NEW; /* initial status of a request */
1.4 cvs 361: me->docid = docid;
362: HTRequest_setMethod (me->request, METHOD_GET);
363: HTRequest_setOutputFormat (me->request, WWW_SOURCE);
364: HTRequest_setContext (me->request, me);
1.116 cvs 365:
1.36 cvs 366: /* experimental */
367: me->read_sock = INVSOC;
368: me->write_sock = INVSOC;
369: me->except_sock = INVSOC;
1.4 cvs 370:
371: /* Update the global context */
372: HTList_appendObject (Amaya->reqlist, (void *) me);
373:
374: docid_status = GetDocIdStatus (docid, Amaya->docid_status);
375:
1.7 cvs 376: if (docid_status == NULL)
377: {
1.116 cvs 378: docid_status = (AHTDocId_Status *)
379: TtaGetMemory (sizeof (AHTDocId_Status));
1.7 cvs 380: docid_status->docid = docid;
381: docid_status->counter = 1;
382: HTList_addObject (Amaya->docid_status, (void *) docid_status);
383: }
384: else
1.4 cvs 385: docid_status->counter++;
386:
387: Amaya->open_requests++;
388:
1.74 cvs 389: #ifdef DEBUG_LIBWWW
390: fprintf (stderr, "AHTReqContext_new: Created object %p\n", me);
391: #endif
1.116 cvs 392:
1.4 cvs 393: return me;
394: }
395:
1.5 cvs 396: /*----------------------------------------------------------------------
1.17 cvs 397: AHTReqContext_delete
398: Delete an Amaya Context Object and update the global Amaya request
399: status.
1.5 cvs 400: ----------------------------------------------------------------------*/
1.4 cvs 401:
402: #ifdef __STDC__
1.191 cvs 403: ThotBool AHTReqContext_delete (AHTReqContext * me)
1.4 cvs 404: #else
1.191 cvs 405: ThotBool AHTReqContext_delete (me)
1.4 cvs 406: AHTReqContext *me;
407:
408: #endif
409: {
410: AHTDocId_Status *docid_status;
411:
1.7 cvs 412: if (me)
413: {
1.74 cvs 414: #ifdef DEBUG_LIBWWW
1.138 cvs 415: fprintf (stderr, "AHTReqContext_delete: Deleting object %p\n", me);
1.74 cvs 416: #endif
1.138 cvs 417: if (Amaya->reqlist)
418: HTList_removeObject (Amaya->reqlist, (void *) me);
419:
420: docid_status = GetDocIdStatus (me->docid, Amaya->docid_status);
421: if (docid_status)
422: {
423: docid_status->counter--;
424:
425: if (docid_status->counter == 0)
426: {
427: HTList_removeObject (Amaya->docid_status, (void *) docid_status);
428: TtaFreeMemory ((void *) docid_status);
429: }
430: }
1.190 cvs 431: /* JK: no longer needed in libwww 5.2.3
432: if (me->method != METHOD_PUT && HTRequest_outputStream (me->request))
433: AHTFWriter_FREE (HTRequest_outputStream (me->request));
434: */
1.138 cvs 435: HTRequest_delete (me->request);
436:
437: if (me->output && me->output != stdout)
438: {
1.85 cvs 439: #ifdef DEBUG_LIBWWW
1.138 cvs 440: fprintf (stderr, "AHTReqContext_delete: URL is %s, closing "
441: "FILE %p\n", me->urlName, me->output);
1.85 cvs 442: #endif
1.138 cvs 443: fclose (me->output);
444: me->output = NULL;
445: }
1.79 cvs 446:
1.138 cvs 447: if (me->error_stream != (char *) NULL)
448: HT_FREE (me->error_stream);
449: #ifndef _WINDOWS
450: #ifdef WWW_XWINDOWS
451: if (me->read_xtinput_id || me->write_xtinput_id ||
452: me->except_xtinput_id)
453: RequestKillAllXtevents(me);
454: #endif /* WWW_XWINDOWS */
455: #endif /* !_WINDOWS */
456:
457: if (me->reqStatus == HT_ABORT)
458: {
459: if (me->outputfile && me->outputfile[0] != EOS)
460: {
461: TtaFileUnlink (me->outputfile);
462: me->outputfile[0] = EOS;
463: }
464: }
465:
466: if ((me->mode & AMAYA_ASYNC) || (me->mode & AMAYA_IASYNC))
467: /* for the ASYNC mode, free the memory we allocated in GetObjectWWW
468: or in PutObjectWWW */
469: {
470: if (me->urlName)
471: TtaFreeMemory (me->urlName);
472: if (me->outputfile)
473: TtaFreeMemory (me->outputfile);
474: }
475:
476: if (me->content_type)
477: TtaFreeMemory (me->content_type);
478:
479: if (me->formdata)
480: HTAssocList_delete (me->formdata);
481:
482: /* to trace bugs */
483: memset ((void *) me, 0, sizeof (AHTReqContext));
484:
485: TtaFreeMemory ((void *) me);
486:
487: Amaya->open_requests--;
488:
489: return TRUE;
1.7 cvs 490: }
1.15 cvs 491: return FALSE;
1.4 cvs 492: }
493:
494:
1.15 cvs 495: /*----------------------------------------------------------------------
1.17 cvs 496: Thread_deleteAll
497: this function deletes the whole list of active threads.
1.5 cvs 498: ----------------------------------------------------------------------*/
1.4 cvs 499: #ifdef __STDC__
500: static void Thread_deleteAll (void)
501: #else
502: static void Thread_deleteAll ()
503: #endif
504: {
1.21 cvs 505: HTList *cur;
506: AHTReqContext *me;
507: AHTDocId_Status *docid_status;
508:
1.74 cvs 509: if (Amaya && Amaya->reqlist)
510: {
511: if (Amaya->open_requests > 0)
512: #ifdef DEBUG_LIBWWW
513: fprintf (stderr, "Thread_deleteAll: Killing %d outstanding "
514: "requests\n", Amaya->open_requests);
515: #endif
516: {
517: cur = Amaya->reqlist;
518:
519: /* erase the requests */
520: while ((me = (AHTReqContext *) HTList_removeLastObject (cur)))
521: {
522: if (me->request)
523: {
1.142 cvs 524: #ifndef _WINDOWS
525: #ifdef WWW_XWINDOWS
1.74 cvs 526: RequestKillAllXtevents (me);
1.142 cvs 527: #endif /* WWW_XWINDOWS */
1.138 cvs 528: #endif /* !_WINDOWS */
1.140 cvs 529: if (!HTRequest_kill (me->request))
530: AHTReqContext_delete (me);
1.74 cvs 531: }
532: } /* while */
533:
534: /* erase the docid_status entities */
535: while ((docid_status = (AHTDocId_Status *) HTList_removeLastObject ((void *) Amaya->docid_status)))
536: TtaFreeMemory ((void *) docid_status);
537:
538: } /* if */
1.84 cvs 539:
1.74 cvs 540: }
1.4 cvs 541: }
542:
1.5 cvs 543: /*----------------------------------------------------------------------
1.83 cvs 544: AHTOpen_file
545: ----------------------------------------------------------------------*/
546: #ifdef __STDC__
1.85 cvs 547: int AHTOpen_file (HTRequest * request)
1.83 cvs 548: #else
1.85 cvs 549: int AHTOpen_file (request)
1.83 cvs 550: HTRequest *request;
551:
552: #endif /* __STDC__ */
553: {
554: AHTReqContext *me; /* current request */
555:
556: me = HTRequest_context (request);
557:
1.93 cvs 558: if (!me)
559: return HT_ERROR;
560:
1.83 cvs 561: #ifdef DEBUG_LIBWWW
1.116 cvs 562: fprintf(stderr, "AHTOpen_file: start for object : %p\n", me);
1.85 cvs 563: #endif /* DEBUG_LIBWWW */
564:
565: if (me->reqStatus == HT_ABORT)
566: {
567: #ifdef DEBUG_LIBWWW
568: fprintf(stderr, "AHTOpen_file: caught an abort request, skipping it\n");
1.83 cvs 569: #endif /* DEBUG_LIBWWW */
570:
1.85 cvs 571: return HT_OK;
572: }
573:
1.136 cvs 574: if (me->method == METHOD_PUT)
575: {
576: me->reqStatus = HT_WAITING;
577: return HT_OK;
578: }
579:
1.85 cvs 580: if (HTRequest_outputStream (me->request))
581: {
582:
583: #ifdef DEBUG_LIBWWW
584: fprintf(stderr, "AHTOpen_file: output stream already existed for url %s\n", me->urlName);
585: #endif /* DEBUG_LIBWWW */
586: return HT_OK;
587: }
588:
589: #ifdef DEBUG_LIBWWW
590: fprintf(stderr, "AHTOpen_file: opening output stream for url %s\n", me->urlName);
591: #endif /* DEBUG_LIBWWW */
592:
1.83 cvs 593: if (!(me->output) &&
594: (me->output != stdout) &&
595: #ifndef _WINDOWS
596: (me->output = fopen (me->outputfile, "w")) == NULL)
597: {
1.116 cvs 598: #else /* !_WINDOWS */
1.83 cvs 599: (me->output = fopen (me->outputfile, "wb")) == NULL)
600: {
601: #endif /* !_WINDOWS */
602:
1.131 cvs 603: me->outputfile[0] = EOS; /* file could not be opened */
1.85 cvs 604: #ifdef DEBUG_LIBWWW
605: fprintf(stderr, "AHTOpen_file: couldn't open output stream for url %s\n", me->urlName);
606: #endif
1.83 cvs 607: TtaSetStatus (me->docid, 1,
608: TtaGetMessage (AMAYA, AM_CANNOT_CREATE_FILE),
609: me->outputfile);
610: me->reqStatus = HT_ERR;
611: return (HT_ERROR);
612: }
613:
614: HTRequest_setOutputStream (me->request,
615: AHTFWriter_new (me->request,
616: me->output, YES));
617: me->reqStatus = HT_WAITING;
618:
619: return HT_OK;
620: }
621:
622: /*----------------------------------------------------------------------
1.17 cvs 623: redirection_handler
624: this function is registered to handle permanent and temporary
625: redirections.
626: ----------------------------------------------------------------------*/
1.4 cvs 627: #ifdef __STDC__
1.7 cvs 628: static int redirection_handler (HTRequest * request, HTResponse * response, void *param, int status)
1.4 cvs 629: #else
630: static int redirection_handler (request, context, status)
631: HTRequest *request;
632: HTResponse *response;
633: void *param;
634: int status;
635:
636: #endif
637: {
638:
639: HTAnchor *new_anchor = HTResponse_redirection (response);
1.7 cvs 640: AHTReqContext *me = HTRequest_context (request);
1.4 cvs 641: HTMethod method = HTRequest_method (request);
1.98 cvs 642: char *ref;
643: char *tmp;
1.4 cvs 644:
1.153 cvs 645: if (!me)
646: /* if the redirect doesn't come from Amaya, we call libwww's standard
647: redirect filter */
648: return (HTRedirectFilter (request, response, param, status));
649:
1.7 cvs 650: if (!new_anchor)
651: {
652: if (PROT_TRACE)
653: HTTrace ("Redirection. No destination\n");
654: return HT_OK;
655: }
1.4 cvs 656:
657: /*
1.166 cvs 658: ** Only do redirect on GET and HEAD
1.4 cvs 659: */
1.7 cvs 660: if (!HTMethod_isSafe (method))
661: {
1.130 cvs 662: /*
663: ** If we got a 303 See Other then change the method to GET.
664: ** Otherwise ask the user whether we should continue.
665: */
666: if (status == HT_SEE_OTHER)
667: {
668: if (PROT_TRACE)
669: HTTrace("Redirection. Changing method from %s to GET\n",
670: HTMethod_name(method));
671: HTRequest_setMethod(request, METHOD_GET);
672: }
673: else
674: {
675: HTAlertCallback *prompt = HTAlert_find (HT_A_CONFIRM);
676: if (prompt)
677: {
678: if ((*prompt) (request, HT_A_CONFIRM, HT_MSG_REDIRECTION,
679: NULL, NULL, NULL) != YES)
1.153 cvs 680: return HT_OK;
1.130 cvs 681: }
682: }
1.7 cvs 683: }
1.4 cvs 684: /*
685: ** Start new request with the redirect anchor found in the headers.
686: ** Note that we reuse the same request object which means that we must
687: ** keep this around until the redirected request has terminated. It also
688: ** allows us in an easy way to keep track of the number of redirections
689: ** so that we can detect endless loops.
690: */
1.166 cvs 691:
1.7 cvs 692: if (HTRequest_doRetry (request))
693: {
1.174 cvs 694: /*
695: ** Start request with new credentials
696: */
697:
1.166 cvs 698: /* only do a redirect using a network protocol understood by Amaya */
699: if (IsValidProtocol (new_anchor->parent->address))
1.7 cvs 700: {
1.166 cvs 701: /* if it's a valid URL, we try to normalize it */
702: /* We use the pre-redirection anchor as a base name */
1.74 cvs 703: ref = AmayaParseUrl (new_anchor->parent->address,
704: me->urlName, AMAYA_PARSE_ALL);
1.7 cvs 705: if (ref)
706: {
1.98 cvs 707: HT_FREE (new_anchor->parent->address);
708: tmp = NULL;
709: HTSACopy (&tmp, ref);
710: new_anchor->parent->address = tmp;
711: TtaFreeMemory (ref);
1.7 cvs 712: }
1.98 cvs 713: else
1.166 cvs 714: return HT_OK; /* We can't redirect anymore */
1.7 cvs 715: }
1.166 cvs 716: else
717: return HT_OK; /* We can't redirect anymore */
1.7 cvs 718:
719: /* update the current file name */
1.130 cvs 720: if ((me->mode & AMAYA_ASYNC) || (me->mode & AMAYA_IASYNC))
1.7 cvs 721: {
1.130 cvs 722: TtaFreeMemory (me->urlName);
723: me->urlName = TtaStrdup (new_anchor->parent->address);
1.7 cvs 724: }
725: else
1.130 cvs 726: /* it's a SYNC mode, so we should keep the urlName */
727: {
728: strncpy (me->urlName, new_anchor->parent->address,
729: MAX_LENGTH - 1);
730: me->urlName[MAX_LENGTH - 1] = EOS;
731: }
1.38 cvs 732: ChopURL (me->status_urlName, me->urlName);
1.116 cvs 733:
1.190 cvs 734: /* @@ verify if this is important */
735: /* @@@ new libwww doesn't need this free stream while making
736: a PUT. Is it the case everywhere or just for PUT? */
737: if (me->method != METHOD_PUT
1.192 ! cvs 738: && me->request->orig_output_stream != NULL)
! 739: {
! 740: AHTFWriter_FREE (me->request->orig_output_stream);
! 741: me->request->orig_output_stream = NULL;
! 742: if (me->output != stdout) { /* Are we writing to a file? */
1.74 cvs 743: #ifdef DEBUG_LIBWWW
1.192 ! cvs 744: fprintf (stderr, "redirection_handler: New URL is %s, closing "
! 745: "FILE %p\n", me->urlName, me->output);
1.74 cvs 746: #endif
1.192 ! cvs 747: fclose (me->output);
! 748: me->output = NULL;
! 749: }
1.79 cvs 750: }
1.68 cvs 751:
1.174 cvs 752: /* tell the user what we're doing */
753: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_RED_FETCHING),
754: me->status_urlName);
755:
756:
1.171 cvs 757: /*
758: ** launch the request
759: */
1.192 ! cvs 760: /* add a link relationship? */
1.174 cvs 761: /* reset the request status */
1.116 cvs 762: me->reqStatus = HT_NEW;
1.105 cvs 763: /* clear the errors */
1.116 cvs 764: HTError_deleteAll (HTRequest_error (request));
1.105 cvs 765: HTRequest_setError (request, NULL);
1.192 ! cvs 766: /* clear the authentication credentials, as they get regenerated */
1.174 cvs 767: HTRequest_deleteCredentialsAll (request);
768:
1.171 cvs 769: if (me->method == METHOD_POST
770: || me->method == METHOD_PUT) /* PUT, POST etc. */
771: status = HTLoadAbsolute (me->urlName, request);
1.7 cvs 772: else
1.74 cvs 773: HTLoadAnchor (new_anchor, request);
1.7 cvs 774: }
775: else
1.68 cvs 776: {
1.74 cvs 777: HTRequest_addError (request, ERR_FATAL, NO, HTERR_MAX_REDIRECT,
778: NULL, 0, "HTRedirectFilter");
779: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_REDIRECTIONS_LIMIT),
780: NULL);
1.173 cvs 781: /* so that we can show the error message */
1.74 cvs 782: if (me->error_html)
1.173 cvs 783: DocNetworkStatus[me->docid] |= AMAYA_NET_ERROR;
784: me->reqStatus = HT_ERR;
1.68 cvs 785: }
786:
1.4 cvs 787: /*
1.74 cvs 788: ** By returning HT_ERROR we make sure that this is the last handler to be
789: ** called. We do this as we don't want any other filter to delete the
790: ** request object now when we have just started a new one ourselves
791: */
1.4 cvs 792: return HT_ERROR;
793: }
794:
1.151 cvs 795: #ifdef AMAYA_LOST_UPDATE
796: /*----------------------------------------------------------------------
797: precondition_handler
798: 412 "Precondition failed" handler
799: ----------------------------------------------------------------------*/
800: #if __STDC__
801: static int precondition_handler (HTRequest * request, HTResponse * response, void *context, int status)
802: #else
803: static int precondition_handler (request, response, context, status)
804: HTRequest *request;
805: HTResponse *response;
806: void *context;
807: int status;
808: #endif /* __STDC__ */
809: {
1.168 cvs 810: AHTReqContext *me = (AHTReqContext *) HTRequest_context (request);
811: HTAlertCallback *prompt = HTAlert_find (HT_A_CONFIRM);
1.191 cvs 812: ThotBool force_put;
1.151 cvs 813:
814: if (!me)
815: return HT_OK; /* not an Amaya request */
816:
1.168 cvs 817: if (prompt)
818: force_put = (*prompt) (request, HT_A_CONFIRM, HT_MSG_RULES,
819: NULL, NULL, NULL);
820: else
821: force_put = NO;
822:
823: if (force_put)
824: {
825: /* start a new PUT request without preconditions */
826: /* @@ do we need to kill the request? */
827: if (me->output && me->output != stdout)
828: {
829: fclose (me->output);
830: me->output = NULL;
831: }
832: /*
833: ** reset the Amaya and libwww request status
834: */
1.176 cvs 835:
836: /* start with a new, clean request structure */
837: HTRequest_delete (me->request);
838: me->request = HTRequest_new ();
839: /* clean the associated file structure) */
840: HTRequest_setOutputStream (me->request, NULL);
841: /* Initialize the other members of the structure */
1.171 cvs 842: HTRequest_setMethod (me->request, METHOD_GET);
1.176 cvs 843: HTRequest_setOutputFormat (me->request, WWW_SOURCE);
844: HTRequest_setContext (me->request, me);
845: HTRequest_setPreemptive (me->request, NO);
846: /*
847: ** Make sure that the first request is flushed immediately and not
848: ** buffered in the output buffer
849: */
850: if (me->mode & AMAYA_FLUSH_REQUEST)
851: HTRequest_setFlush(me->request, YES);
852:
1.171 cvs 853: /* turn off preconditions */
854: HTRequest_setPreconditions(me->request, HT_NO_MATCH);
855: me->reqStatus = HT_NEW;
856: /* make the request */
1.176 cvs 857: status = HTPutDocumentAnchor (HTAnchor_parent (me->source),
858: me->dest, me->request);
1.168 cvs 859: /* stop here */
860: return HT_ERROR;
861: }
862: else
863: {
864: /* abort the request */
865: /* @@ should we call StopRequest here? */
866: me->reqStatus = HT_ABORT;
867: /* stop here */
868: return HT_ERROR;
869: }
870: }
1.151 cvs 871:
1.168 cvs 872: /*----------------------------------------------------------------------
873: check_handler
874: Request HEAD checker filter
875: ----------------------------------------------------------------------*/
876: static int check_handler (HTRequest * request, HTResponse * response,
1.151 cvs 877: void * param, int status)
878: {
1.168 cvs 879: AHTReqContext *me = (AHTReqContext *) HTRequest_context (request);
880: HTAlertCallback *prompt = HTAlert_find (HT_A_CONFIRM);
1.191 cvs 881: ThotBool force_put;
1.168 cvs 882:
883: if (!me)
884: return HT_OK; /* not an Amaya request */
885:
886: HTRequest_deleteAfter(me->request, check_handler);
887: /*
888: ** If head request showed that the document doesn't exist
889: ** then just go ahead and PUT it. Otherwise ask for help
890: */
891: if (status == HT_ERROR || status == HT_INTERRUPTED || status == HT_TIMEOUT)
892: {
893: /* we'd need to call terminate_handler, to free the resources */
894: /* abort the request */
895: /* @@ should we call StopRequest here? */
896: me->reqStatus = HT_ABORT;
897: /* stop here */
898: return HT_ERROR;
899: }
900: else if (status == HT_NO_ACCESS || status == HT_NO_PROXY_ACCESS)
901: {
902: /* we'd need to call terminate_handler, to free the resources */
903: /* abort the request */
904: /* @@ should we call StopRequest here? */
905: me->reqStatus = HT_ABORT;
906: /* stop here */
907: return HT_ERROR;
908: }
909: else if ( (abs(status)/100) != 2)
910: {
1.176 cvs 911: /* start with a new, clean request structure */
912: HTRequest_delete (me->request);
913: me->request = HTRequest_new ();
914: /* clean the associated file structure) */
915: HTRequest_setOutputStream (me->request, NULL);
916: /* Initialize the other members of the structure */
1.171 cvs 917: HTRequest_setMethod (me->request, METHOD_GET);
1.176 cvs 918: HTRequest_setOutputFormat (me->request, WWW_SOURCE);
919: HTRequest_setContext (me->request, me);
920: HTRequest_setPreemptive (me->request, NO);
921: /*
922: ** Make sure that the first request is flushed immediately and not
923: ** buffered in the output buffer
924: */
925: if (me->mode & AMAYA_FLUSH_REQUEST)
926: HTRequest_setFlush(me->request, YES);
927:
928: /* turn on the special preconditions, to avoid having this
929: ressource appear before we do the PUT */
1.168 cvs 930: HTRequest_setPreconditions(me->request, HT_DONT_MATCH_ANY);
1.171 cvs 931: me->reqStatus = HT_NEW;
1.168 cvs 932: status = HTPutDocumentAnchor (HTAnchor_parent (me->source), me->dest, me->request);
933: return HT_ERROR; /* stop here */
1.176 cvs 934: }
1.168 cvs 935: else
936: {
937: if (prompt)
938: force_put = (*prompt) (request, HT_A_CONFIRM, HT_MSG_FILE_REPLACE,
939: NULL, NULL, NULL);
940: else
941: force_put = FALSE;
942:
943: if (force_put)
1.151 cvs 944: {
945: /* Start a new PUT request without preconditions */
1.176 cvs 946:
947: /* get a new, clean request structure */
948: HTRequest_delete (me->request);
949: me->request = HTRequest_new ();
950: /* clean the associated file structure) */
951: HTRequest_setOutputStream (me->request, NULL);
952: /* Initialize the other members of the structure */
1.171 cvs 953: HTRequest_setMethod (me->request, METHOD_GET);
1.176 cvs 954: HTRequest_setOutputFormat (me->request, WWW_SOURCE);
955: HTRequest_setContext (me->request, me);
956: HTRequest_setPreemptive (me->request, NO);
957: /*
958: ** Make sure that the first request is flushed immediately and not
959: ** buffered in the output buffer
960: */
961: if (me->mode & AMAYA_FLUSH_REQUEST)
962: HTRequest_setFlush(me->request, YES);
963: /* remove the preconditions */
1.168 cvs 964: HTRequest_setPreconditions(me->request, HT_NO_MATCH);
1.171 cvs 965: me->reqStatus = HT_NEW;
1.176 cvs 966: status = HTPutDocumentAnchor (HTAnchor_parent (me->source),
967: me->dest, me->request);
1.168 cvs 968: return HT_ERROR; /* stop here */
1.151 cvs 969: }
1.168 cvs 970: else
971: {
972: /* we'd need to call terminate_handler, to free the resources */
973: /* abort the request */
974: /* @@ should we call StopRequest here? */
975: me->reqStatus = HT_ABORT;
976: /* stop here */
977: return HT_ERROR;
978: }
979: }
980: return HT_ERROR;
1.151 cvs 981: }
982: #endif /* AMAYA_LOST_UPDATE */
983:
1.5 cvs 984: /*----------------------------------------------------------------------
1.17 cvs 985: terminate_handler
986: this function is registered to handle the result of the request
1.5 cvs 987: ----------------------------------------------------------------------*/
1.4 cvs 988: #if __STDC__
1.7 cvs 989: static int terminate_handler (HTRequest * request, HTResponse * response, void *context, int status)
1.4 cvs 990: #else
991: static int terminate_handler (request, response, context, status)
992: HTRequest *request;
993: HTResponse *response;
994: void *context;
995: int status;
1.123 cvs 996: #endif /* __STDC__ */
1.4 cvs 997: {
1.116 cvs 998: AHTReqContext *me = (AHTReqContext *) HTRequest_context (request);
1.191 cvs 999: ThotBool error_flag;
1.116 cvs 1000: char *content_type;
1.184 cvs 1001: HTParentAnchor *anchor;
1.116 cvs 1002:
1003: if (!me)
1.153 cvs 1004: return HT_ERROR; /* not an Amaya request */
1.116 cvs 1005:
1006: if (me->reqStatus == HT_END)
1007: /* we have already processed this request! */
1008: return HT_OK;
1009:
1010: /* if Amaya was killed, treat with this request as if it were
1011: issued by a Stop button event */
1012:
1013: if (!AmayaIsAlive ())
1.80 cvs 1014: me->reqStatus = HT_ABORT;
1.74 cvs 1015:
1.77 cvs 1016: if (status == HT_LOADED ||
1017: status == HT_CREATED ||
1.79 cvs 1018: status == HT_NO_DATA ||
1.160 cvs 1019: /* kludge for work around libwww problem */
1020: (status == HT_INTERRUPTED && me->method == METHOD_PUT) ||
1.116 cvs 1021: #ifdef AMAYA_WWW_CACHE
1022: /* what status to use to know we're downloading from a cache? */
1023: status == HT_NOT_MODIFIED ||
1024: #endif /* AMAYA_WWW_CACHE */
1.79 cvs 1025: me->reqStatus == HT_ABORT)
1.74 cvs 1026: error_flag = FALSE;
1.13 cvs 1027: else
1.74 cvs 1028: error_flag = TRUE;
1.130 cvs 1029:
1.4 cvs 1030: /* output any errors from the server */
1.130 cvs 1031:
1.77 cvs 1032: /*
1.74 cvs 1033: ** me->output = output file which will receive an html file
1034: ** me->error_html = yes, output HTML errors in the screen
1035: ** request->error_stack == if there are any errors, they will be here
1036: ** me->error_stream_size If it's != 0 means an error message has already
1037: ** been written to the stack
1038: */
1039:
1.4 cvs 1040: /* First, we verify if there are any errors and if they are not
1.17 cvs 1041: ** yet written to the error stack. If no, then let's try to write them
1042: ** ourselves
1043: */
1.74 cvs 1044:
1045: #ifdef DEBUG_LIBWWW
1046: fprintf (stderr, "terminate_handler: URL is "
1047: "%s, closing FILE %p status is %d\n", me->urlName, me->output,
1048: status);
1.69 cvs 1049: #endif
1.74 cvs 1050:
1.69 cvs 1051: if (me->output && me->output != stdout)
1052: {
1.74 cvs 1053: /* we are writing to a file */
1054: if (me->reqStatus != HT_ABORT)
1055: { /* if the request was not aborted and */
1.80 cvs 1056: if (error_flag &&
1057: me->error_html == TRUE)
1058: /* there were some errors and we want to print them */
1059: {
1060: if (me->error_stream_size == 0)/* and the stream is empty */
1061: AHTError_MemPrint (request); /* copy errors from
1.74 cvs 1062: **the error stack
1.77 cvs 1063: ** into the error stream */
1.80 cvs 1064: if (me->error_stream)
1065: { /* if the stream is non-empty */
1066: fprintf (me->output, me->error_stream);/* output the errors */
1.85 cvs 1067: /* Clear the error context, so that we can deal with
1068: this answer as if it were a normal reply */
1069: HTError_deleteAll( HTRequest_error (request));
1070: HTRequest_setError (request, NULL);
1071: error_flag = 0;
1.74 cvs 1072: }
1073: } /* if error_stack */
1.85 cvs 1074: }
1075:
1076: /* if != HT_ABORT */
1077:
1078: #ifdef DEBUG_LIBWWW
1079: fprintf (stderr, "terminate_handler: URL is %s, closing "
1080: "FILE %p\n", me->urlName, me->output);
1081: #endif
1.74 cvs 1082: fclose (me->output);
1083: me->output = NULL;
1.69 cvs 1084: }
1.80 cvs 1085:
1086: if (error_flag)
1087: me->reqStatus = HT_ERR;
1088: else if (me->reqStatus != HT_ABORT)
1089: me->reqStatus = HT_END;
1.151 cvs 1090:
1.116 cvs 1091: /* copy the content_type */
1.151 cvs 1092: if (!me->content_type)
1.88 cvs 1093: {
1.184 cvs 1094: anchor = HTRequest_anchor (request);
1095: if (anchor && HTAnchor_format (anchor))
1096: content_type = HTAtom_name (HTAnchor_format (anchor));
1.154 cvs 1097: else
1098: content_type = "www/unknown";
1099:
1.151 cvs 1100: if (content_type && content_type [0] != EOS)
1101: {
1102: /* libwww gives www/unknown when it gets an error. As this is
1103: an HTML test, we force the type to text/html */
1104: if (!strcmp (content_type, "www/unknown"))
1105: me->content_type = TtaStrdup ("text/html");
1106: else
1107: me->content_type = TtaStrdup (content_type);
1108:
1109: /* Content-Type can be specified by an httpd server's admin.
1110: To be on the safe side, we normalize its case */
1111: ConvertToLowerCase (me->content_type);
1112:
1.88 cvs 1113: #ifdef DEBUG_LIBWWW
1.151 cvs 1114: fprintf (stderr, "content type is: %s\n", me->content_type);
1.88 cvs 1115: #endif /* DEBUG_LIBWWW */
1.151 cvs 1116: }
1117: }
1.114 cvs 1118:
1.115 cvs 1119: /* to avoid a hangup while downloading css files */
1.140 cvs 1120: if (AmayaAlive_flag && (me->mode & AMAYA_LOAD_CSS))
1.116 cvs 1121: TtaSetStatus (me->docid, 1,
1122: TtaGetMessage (AMAYA, AM_ELEMENT_LOADED),
1123: me->status_urlName);
1124:
1125: /* don't remove or Xt will hang up during the PUT */
1126: if (AmayaIsAlive () && ((me->method == METHOD_POST) ||
1127: (me->method == METHOD_PUT)))
1.7 cvs 1128: {
1.80 cvs 1129: PrintTerminateStatus (me, status);
1130: }
1.114 cvs 1131:
1.111 cvs 1132: ProcessTerminateRequest (request, response, context, status);
1.116 cvs 1133:
1.151 cvs 1134: /* stop here */
1.150 cvs 1135: return HT_ERROR;
1.4 cvs 1136: }
1137:
1.5 cvs 1138: /*----------------------------------------------------------------------
1.17 cvs 1139: AHTLoadTerminate_handler
1.74 cvs 1140: this is an application "AFTER" Callback. It's called by the library
1141: when a request has ended, so that we can setup the correct status.
1.5 cvs 1142: ----------------------------------------------------------------------*/
1.4 cvs 1143:
1144: #ifdef __STDC__
1.111 cvs 1145: int AHTLoadTerminate_handler (HTRequest * request, HTResponse * response, void *param, int status)
1.4 cvs 1146: #else
1.111 cvs 1147: int AHTLoadTerminate_handler (request, response, param, status)
1.4 cvs 1148: HTRequest *request;
1149: HTResponse *response;
1150: void *param;
1151: int status;
1.69 cvs 1152:
1.4 cvs 1153: #endif
1154: {
1.116 cvs 1155:
1156: /** @@@@ use this with printstatus ?? */
1157:
1.4 cvs 1158: AHTReqContext *me = HTRequest_context (request);
1159: HTAlertCallback *cbf;
1160: AHTDocId_Status *docid_status;
1161:
1.7 cvs 1162: switch (status)
1.116 cvs 1163: {
1164: case HT_LOADED:
1165: if (PROT_TRACE)
1166: HTTrace ("Load End.... OK: `%s\' has been accessed\n",
1167: me->status_urlName);
1.4 cvs 1168:
1.116 cvs 1169: docid_status = GetDocIdStatus (me->docid,
1170: Amaya->docid_status);
1.7 cvs 1171:
1.116 cvs 1172: if (docid_status != NULL && docid_status->counter > 1)
1173: TtaSetStatus (me->docid, 1,
1174: TtaGetMessage (AMAYA, AM_ELEMENT_LOADED),
1.74 cvs 1175: me->status_urlName);
1.7 cvs 1176: break;
1.116 cvs 1177:
1178: case HT_NO_DATA:
1179: if (PROT_TRACE)
1180: HTTrace ("Load End.... OK BUT NO DATA: `%s\'\n",
1181: me->status_urlName);
1182: TtaSetStatus (me->docid, 1,
1183: TtaGetMessage (AMAYA, AM_LOADED_NO_DATA),
1184: me->status_urlName);
1185: break;
1186:
1187: case HT_INTERRUPTED:
1188: if (PROT_TRACE)
1189: HTTrace ("Load End.... INTERRUPTED: `%s\'\n",
1190: me->status_urlName);
1191: TtaSetStatus (me->docid, 1,
1192: TtaGetMessage (AMAYA, AM_LOAD_ABORT),
1193: NULL);
1194: break;
1.7 cvs 1195:
1.116 cvs 1196: case HT_RETRY:
1197: if (PROT_TRACE)
1198: HTTrace ("Load End.... NOT AVAILABLE, RETRY AT %ld\n",
1199: HTResponse_retryTime (response));
1200: TtaSetStatus (me->docid, 1,
1201: TtaGetMessage (AMAYA, AM_NOT_AVAILABLE_RETRY),
1202: me->status_urlName);
1203: break;
1.7 cvs 1204:
1.116 cvs 1205: case HT_ERROR:
1206: cbf = HTAlert_find (HT_A_MESSAGE);
1207: if (cbf)
1208: (*cbf) (request, HT_A_MESSAGE, HT_MSG_NULL, NULL,
1209: HTRequest_error (request), NULL);
1210: break;
1211:
1212: if (PROT_TRACE)
1213: HTTrace ("Load End.... ERROR: Can't access `%s\'\n",
1214: me->status_urlName ? me->status_urlName :"<UNKNOWN>");
1215: TtaSetStatus (me->docid, 1,
1216: TtaGetMessage (AMAYA, AM_CANNOT_LOAD),
1217: me->status_urlName ? me->status_urlName : "<UNKNOWN>");
1218: break;
1219: default:
1220: if (PROT_TRACE)
1221: HTTrace ("Load End.... UNKNOWN RETURN CODE %d\n", status);
1222: break;
1223: }
1224:
1225: return HT_OK;
1226: }
1.7 cvs 1227:
1.116 cvs 1228: #ifdef DEBUG_LIBWWW
1229: static int LineTrace (const char * fmt, va_list pArgs)
1230: {
1231: return (vfprintf(stderr, fmt, pArgs));
1.4 cvs 1232: }
1.116 cvs 1233: #endif DEBUG_LIBWWW
1.4 cvs 1234:
1.27 cvs 1235: /*----------------------------------------------------------------------
1236: AHTAcceptTypesInit
1.74 cvs 1237: This function prepares the Accept header used by Amaya during
1238: the HTTP content negotiation phase
1.27 cvs 1239: ----------------------------------------------------------------------*/
1240: #ifdef __STDC__
1241: static void AHTAcceptTypesInit (HTList *c)
1242: #else /* __STDC__ */
1243: static void AHTAcceptTypesInit (c)
1244: HTList *c;
1245: #endif /* __STDC__ */
1246: {
1247: if (c == (HTList *) NULL)
1248: return;
1249:
1250: /* define here all the mime types that Amaya can accept */
1251:
1.74 cvs 1252: HTConversion_add (c, "image/png", "www/present",
1253: HTThroughLine, 1.0, 0.0, 0.0);
1254: HTConversion_add (c, "image/jpeg", "www/present",
1255: HTThroughLine, 1.0, 0.0, 0.0);
1256: HTConversion_add (c, "image/gif", "www/present",
1257: HTThroughLine, 1.0, 0.0, 0.0);
1258: HTConversion_add (c, "image/xbm", "www/present",
1259: HTThroughLine, 1.0, 0.0, 0.0);
1260: HTConversion_add (c, "image/xpm", "www/present",
1261: HTThroughLine, 1.0, 0.0, 0.0);
1.183 cvs 1262:
1.27 cvs 1263: /* Define here the equivalences between MIME types and file extensions for
1264: the types that Amaya can display */
1265:
1.176 cvs 1266: /* Initialize suffix bindings for local files */
1267: HTBind_init();
1268:
1.27 cvs 1269: /* Register the default set of file suffix bindings */
1270: HTFileInit ();
1271:
1272: /* Don't do any case distinction */
1273: HTBind_caseSensitive (FALSE);
1274: }
1.4 cvs 1275:
1.5 cvs 1276: /*----------------------------------------------------------------------
1.17 cvs 1277: AHTConverterInit
1278: Bindings between a source media type and a destination media type
1279: (conversion).
1.5 cvs 1280: ----------------------------------------------------------------------*/
1.15 cvs 1281: #ifdef __STDC__
1282: static void AHTConverterInit (HTList *c)
1283: #else /* __STDC__ */
1284: static void AHTConverterInit (c)
1285: HTList *c;
1286: #endif /* __STDC__ */
1.4 cvs 1287: {
1288:
1289: /* Handler for custom http error messages */
1.7 cvs 1290: HTConversion_add (c, "*/*", "www/debug", AHTMemConverter, 1.0, 0.0, 0.0);
1.4 cvs 1291:
1292: /*
1293: ** These are converters that converts to something other than www/present,
1294: ** that is not directly outputting someting to the user on the screen
1295: */
1296:
1.116 cvs 1297: HTConversion_add (c, "message/rfc822", "*/*", HTMIMEConvert,
1298: 1.0, 0.0, 0.0);
1.4 cvs 1299: HTConversion_add (c, "message/x-rfc822-foot", "*/*", HTMIMEFooter,
1300: 1.0, 0.0, 0.0);
1301: HTConversion_add (c, "message/x-rfc822-head", "*/*", HTMIMEHeader,
1302: 1.0, 0.0, 0.0);
1.116 cvs 1303: HTConversion_add(c,"message/x-rfc822-cont", "*/*", HTMIMEContinue,
1304: 1.0, 0.0, 0.0);
1305: HTConversion_add(c,"message/x-rfc822-partial","*/*", HTMIMEPartial,
1306: 1.0, 0.0, 0.0);
1.4 cvs 1307: HTConversion_add (c, "multipart/*", "*/*", HTBoundary,
1308: 1.0, 0.0, 0.0);
1309: HTConversion_add (c, "text/plain", "text/html", HTPlainToHTML,
1310: 1.0, 0.0, 0.0);
1311:
1312: /*
1.116 cvs 1313: ** The following conversions are converting ASCII output from various
1314: ** protocols to HTML objects.
1315: */
1.4 cvs 1316: HTConversion_add (c, "text/x-http", "*/*", HTTPStatus_new,
1317: 1.0, 0.0, 0.0);
1318:
1319: /*
1.116 cvs 1320: ** We also register a special content type guess stream that can figure out
1321: ** the content type by reading the first bytes of the stream
1322: */
1.4 cvs 1323: HTConversion_add (c, "www/unknown", "*/*", HTGuess_new,
1324: 1.0, 0.0, 0.0);
1325:
1.116 cvs 1326: #ifdef AMAYA_WWW_CACHE
1.4 cvs 1327: /*
1.116 cvs 1328: ** Register a persistent cache stream which can save an object to local
1329: ** file
1330: */
1.4 cvs 1331: HTConversion_add (c, "www/cache", "*/*", HTCacheWriter,
1332: 1.0, 0.0, 0.0);
1.116 cvs 1333: HTConversion_add(c,"www/cache-append", "*/*", HTCacheAppend,
1334: 1.0, 0.0, 0.0);
1335: #endif AMAYA_WWW_CACHE
1.4 cvs 1336:
1337: /*
1.116 cvs 1338: ** This dumps all other formats to local disk without any further
1339: ** action taken
1340: */
1.4 cvs 1341: HTConversion_add (c, "*/*", "www/present", HTSaveLocally,
1.190 cvs 1342: 0.3, 0.0, 0.0);
1.4 cvs 1343: }
1344:
1.27 cvs 1345:
1.15 cvs 1346: /*----------------------------------------------------------------------
1.17 cvs 1347: AHTProtocolInit
1348: Registers all amaya supported protocols.
1.15 cvs 1349: ----------------------------------------------------------------------*/
1.4 cvs 1350: static void AHTProtocolInit (void)
1351: {
1.116 cvs 1352: char *strptr;
1.4 cvs 1353:
1.116 cvs 1354: /*
1355: NB. Preemptive == YES means Blocking requests
1356: Non-preemptive == NO means Non-blocking requests
1357: */
1358: HTTransport_add("tcp", HT_TP_SINGLE, HTReader_new, HTWriter_new);
1359: HTTransport_add("buffered_tcp", HT_TP_SINGLE, HTReader_new,
1360: HTBufferWriter_new);
1361: HTProtocol_add ("http", "buffered_tcp", HTTP_PORT, NO, HTLoadHTTP, NULL);
1.136 cvs 1362: #ifdef _WINDOWS
1363: HTProtocol_add ("file", "local", 0, YES, HTLoadFile, NULL);
1364: #else
1.116 cvs 1365: HTProtocol_add ("file", "local", 0, NO, HTLoadFile, NULL);
1.136 cvs 1366: #endif _WINDOWS
1.116 cvs 1367: #ifdef AMAYA_WWW_CACHE
1368: HTProtocol_add("cache", "local", 0, YES, HTLoadCache, NULL);
1369: #endif /* AMAYA_WWW_CACHE */
1.103 cvs 1370: #if 0 /* experimental code */
1.116 cvs 1371: HTProtocol_add ("ftp", "tcp", FTP_PORT, NO, HTLoadFTP, NULL);
1.17 cvs 1372: #endif
1.116 cvs 1373:
1374: /* initialize pipelining */
1.168 cvs 1375: strptr = (char *) TtaGetEnvString ("ENABLE_PIPELINING");
1.116 cvs 1376: if (strptr && *strptr && strcasecmp (strptr,"yes" ))
1377: HTTP_setConnectionMode (HTTP_11_NO_PIPELINING);
1.4 cvs 1378: }
1379:
1.15 cvs 1380: /*----------------------------------------------------------------------
1.17 cvs 1381: AHTNetInit
1382: Reegisters "before" and "after" request filters.
1.15 cvs 1383: ----------------------------------------------------------------------*/
1.4 cvs 1384: static void AHTNetInit (void)
1385: {
1386:
1387: /* Register BEFORE filters
1.74 cvs 1388: ** The BEFORE filters handle proxies, caches, rule files etc.
1389: ** The filters are called in the order by which the are registered
1390: ** Not done automaticly - may be done by application!
1391: */
1.4 cvs 1392:
1.116 cvs 1393: HTNet_addBefore (HTCredentialsFilter, "http://*", NULL, HT_FILTER_LATE);
1394: HTNet_addBefore (HTProxyFilter, NULL, NULL, HT_FILTER_LATE);
1.85 cvs 1395: HTHost_setActivateRequestCallback (AHTOpen_file);
1.4 cvs 1396:
1397: /* register AFTER filters
1.74 cvs 1398: ** The AFTER filters handle error messages, logging, redirection,
1399: ** authentication etc.
1400: ** The filters are called in the order by which the are registered
1401: ** Not done automaticly - may be done by application!
1402: */
1.4 cvs 1403:
1.116 cvs 1404: HTNet_addAfter (HTAuthFilter, "http://*", NULL, HT_NO_ACCESS,
1405: HT_FILTER_MIDDLE);
1406: HTNet_addAfter(HTAuthFilter, "http://*", NULL, HT_REAUTH,
1407: HT_FILTER_MIDDLE);
1408: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_PERM_REDIRECT,
1409: HT_FILTER_MIDDLE);
1410: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_FOUND,
1411: HT_FILTER_MIDDLE);
1412: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_SEE_OTHER,
1413: HT_FILTER_MIDDLE);
1414: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_TEMP_REDIRECT,
1415: HT_FILTER_MIDDLE);
1.168 cvs 1416: HTNet_addAfter(HTAuthInfoFilter, "http://*", NULL, HT_ALL,
1417: HT_FILTER_MIDDLE);
1.116 cvs 1418: HTNet_addAfter (HTUseProxyFilter, "http://*", NULL, HT_USE_PROXY,
1419: HT_FILTER_MIDDLE);
1.151 cvs 1420: #ifdef AMAYA_LOST_UPDATE
1421: HTNet_addAfter (precondition_handler, NULL, NULL, HT_PRECONDITION_FAILED,
1422: HT_FILTER_MIDDLE);
1423: #endif /* AMAYA_LOST_UPDATE */
1.111 cvs 1424: #ifndef _WINDOWS
1.116 cvs 1425: HTNet_addAfter (AHTLoadTerminate_handler, NULL, NULL, HT_ALL,
1426: HT_FILTER_LAST);
1.111 cvs 1427: #endif /* !_WINDOWS */
1.116 cvs 1428: /**** for later ?? ****/
1429: /* HTNet_addAfter(HTInfoFilter, NULL, NULL, HT_ALL, HT_FILTER_LATE); */
1.51 cvs 1430: /* handles all errors */
1.116 cvs 1431: HTNet_addAfter (terminate_handler, NULL, NULL, HT_ALL, HT_FILTER_LAST);
1.4 cvs 1432: }
1433:
1.15 cvs 1434: /*----------------------------------------------------------------------
1.17 cvs 1435: AHTAlertInit
1436: Register alert messages and their callbacks.
1.15 cvs 1437: ----------------------------------------------------------------------*/
1438: #ifdef __STDC__
1439: static void AHTAlertInit (void)
1440: #else
1441: static void AHTAlertInit ()
1442: #endif
1443: {
1444: HTAlert_add (AHTProgress, HT_A_PROGRESS);
1.120 cvs 1445: #ifdef __WINDOWS
1.70 cvs 1446: HTAlert_add ((HTAlertCallback *) WIN_Activate_Request, HT_PROG_CONNECT);
1.116 cvs 1447: #endif /* _WINDOWS */
1.15 cvs 1448: HTAlert_add (AHTError_print, HT_A_MESSAGE);
1.48 cvs 1449: HTError_setShow (~((unsigned int) 0 ) & ~((unsigned int) HT_ERR_SHOW_DEBUG)); /* process all messages except debug ones*/
1.15 cvs 1450: HTAlert_add (AHTConfirm, HT_A_CONFIRM);
1451: HTAlert_add (AHTPrompt, HT_A_PROMPT);
1452: HTAlert_add (AHTPromptUsernameAndPassword, HT_A_USER_PW);
1.116 cvs 1453: }
1454:
1.128 cvs 1455: /*----------------------------------------------------------------------
1456: libwww_CleanCache
1457: frontend to the recursive cache cleaning function
1458: ----------------------------------------------------------------------*/
1459: #ifdef __STDC__
1460: void libwww_CleanCache (void)
1461: #else
1462: void libwww_CleanCache ()
1463: Document doc;
1464: View view;
1465: #endif /* __STDC__ */
1466: {
1.130 cvs 1467: #ifdef AMAYA_WWW_CACHE
1.185 cvs 1468: char *real_dir;
1469: char *cache_dir;
1.190 cvs 1470: char *tmp;
1.128 cvs 1471: int cache_size;
1.177 cvs 1472: int cache_expire;
1473: int cache_disconnect;
1.191 cvs 1474: ThotBool error;
1.185 cvs 1475: STRING ptr;
1.130 cvs 1476:
1.128 cvs 1477: if (!HTCacheMode_enabled ())
1.183 cvs 1478: /* don't do anything if we're not using a cache */
1479: return;
1.128 cvs 1480: /* temporarily close down the cache, purge it, then restart */
1.190 cvs 1481: tmp = (char *) HTCacheMode_getRoot ();
1482: /* don't do anything if we don't have a valid cache dir */
1483: if (!tmp || *tmp == EOS)
1484: return;
1485: cache_dir = TtaStrdup (tmp);
1.128 cvs 1486: cache_size = HTCacheMode_maxSize ();
1.177 cvs 1487: cache_expire = HTCacheMode_expires ();
1488: cache_disconnect = HTCacheMode_disconnected ();
1489:
1.185 cvs 1490: /* get something we can work on :) */
1.190 cvs 1491: tmp = HTWWWToLocal (cache_dir, "file:", NULL);
1492: real_dir = TtaGetMemory (strlen (tmp) + 20);
1493: strcpy (real_dir, tmp);
1494: HT_FREE (tmp);
1.185 cvs 1495:
1496: /* safeguard... abort the operation if cache_dir doesn't end with
1497: CACHE_DIR_NAME */
1498: error = TRUE;
1.188 cvs 1499: ptr = strstr (real_dir, CACHE_DIR_NAME);
1.185 cvs 1500: #ifdef _WINDOWS
1501: if (ptr && *ptr && !_stricmp (ptr, CACHE_DIR_NAME))
1502: #else
1503: if (ptr && *ptr && !strcasecmp (ptr, CACHE_DIR_NAME))
1504: #endif /* _WINDOWS */
1505: error = FALSE;
1506: if (error)
1507: return;
1508:
1.130 cvs 1509: /* remove the concurrent cache lock */
1510: #ifdef DEBUG_LIBWWW
1511: fprintf (stderr, "Clearing the cache lock\n");
1512: #endif /* DEBUG_LIBWWW */
1513: clear_cachelock ();
1.128 cvs 1514: HTCacheTerminate ();
1.185 cvs 1515: HTCacheMode_setEnabled (FALSE);
1516:
1517: RecCleanCache (real_dir);
1.128 cvs 1518:
1.177 cvs 1519: HTCacheMode_setExpires (cache_expire);
1520: HTCacheMode_setDisconnected (cache_disconnect);
1.183 cvs 1521: HTCacheInit (cache_dir, cache_size);
1.130 cvs 1522: /* set a new concurrent cache lock */
1.185 cvs 1523: strcat (real_dir, ".lock");
1524: if (set_cachelock (real_dir) == -1)
1.130 cvs 1525: /* couldn't open the .lock file, so, we close the cache to
1526: be in the safe side */
1527: {
1528: #ifdef DEBUG_LIBWWW
1529: fprintf (stderr, "couldnt set the cache lock\n");
1530: #endif /* DEBUG_LIBWWW */
1531: HTCacheTerminate ();
1.185 cvs 1532: HTCacheMode_setEnabled (FALSE);
1.130 cvs 1533: }
1534: #ifdef DEBUG_LIBWWW
1535: fprintf (stderr, "set a cache lock\n");
1536: #endif /* DEBUG_LIBWWW */
1.185 cvs 1537: TtaFreeMemory (real_dir);
1.128 cvs 1538: TtaFreeMemory (cache_dir);
1539: #endif /* AMAYA_WWW_CACHE */
1540: }
1541:
1.118 cvs 1542: #ifdef AMAYA_WWW_CACHE
1543: /*----------------------------------------------------------------------
1.128 cvs 1544: RecCleanCache
1.118 cvs 1545: Clears an existing cache directory
1546: ----------------------------------------------------------------------*/
1547: #ifdef __STDC__
1.128 cvs 1548: static void RecCleanCache (char *dirname)
1.118 cvs 1549: #else
1.128 cvs 1550: static void RecCleanCache (char *dirname)
1551: Document doc;
1552: View view;
1.118 cvs 1553: #endif /* __STDC__ */
1.128 cvs 1554:
1555: #ifdef _WINDOWS
1556: {
1557: HANDLE hFindFile;
1.191 cvs 1558: ThotBool status;
1.128 cvs 1559: WIN32_FIND_DATA ffd;
1560:
1561: char t_dir [MAX_LENGTH];
1.130 cvs 1562: char *ptr;
1.128 cvs 1563:
1.130 cvs 1564: /* create a t_dir name to start searching for files */
1.128 cvs 1565: if ((strlen (dirname) + 10) > MAX_LENGTH)
1566: /* ERROR: directory name is too big */
1567: return;
1568:
1569: strcpy (t_dir, dirname);
1.130 cvs 1570: /* save the end of the dirname. We'll use it to make
1571: a complete pathname when erasing files */
1572: ptr = &t_dir[strlen (t_dir)];
1573: strcat (t_dir, "*");
1.128 cvs 1574:
1.130 cvs 1575: hFindFile = FindFirstFile (t_dir, &ffd);
1.128 cvs 1576:
1577: if (hFindFile == INVALID_HANDLE_VALUE)
1578: /* nothing to erase? */
1579: return;
1580:
1581: status = TRUE;
1.130 cvs 1582: while (status)
1583: {
1584: if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
1.133 cvs 1585: {
1586: /* it's a directory, erase it recursively */
1587: if (strcmp (ffd.cFileName, "..") && strcmp (ffd.cFileName, "."))
1588: {
1589: strcpy (ptr, ffd.cFileName);
1590: strcat (ptr, DIR_STR);
1591: RecCleanCache (t_dir);
1.137 cvs 1592: # ifdef _WINDOWS
1593: _rmdir (t_dir);
1594: # else /* !_WINDOWS */
1.133 cvs 1595: rmdir (t_dir);
1.137 cvs 1596: # endif /* _WINDOWS */
1.133 cvs 1597: }
1598: }
1599: else
1.130 cvs 1600: {
1.133 cvs 1601: /* it's a file, erase it */
1.130 cvs 1602: strcpy (ptr, ffd.cFileName);
1.133 cvs 1603: TtaFileUnlink (t_dir);
1.130 cvs 1604: }
1605: status = FindNextFile (hFindFile, &ffd);
1606: }
1.128 cvs 1607: FindClose (hFindFile);
1608: }
1609:
1610: #else /* _WINDOWS */
1.118 cvs 1611: {
1612: DIR *dp;
1613: struct stat st;
1614: #ifdef HAVE_DIRENT_H
1615: struct dirent *d;
1616: #else
1617: struct direct *d;
1618: #endif /* HAVE_DIRENT_H */
1.128 cvs 1619: char filename[BUFSIZ+1];
1.118 cvs 1620:
1621: if ((dp = opendir (dirname)) == NULL)
1622: {
1623: /* @@@ we couldn't open the directory ... we need some msg */
1624: perror (dirname);
1.176 cvs 1625: return;
1.118 cvs 1626: }
1627:
1628: while ((d = readdir (dp)) != NULL)
1629: {
1630: /* skip the UNIX . and .. links */
1631: if (!strcmp (d->d_name, "..")
1632: || !strcmp (d->d_name, "."))
1633: continue;
1634:
1.188 cvs 1635: sprintf (filename, "%s%c%s", dirname, DIR_SEP, d->d_name);
1.118 cvs 1636: if (lstat (filename, &st) < 0 )
1637: {
1638: /* @@2 need some error message */
1639: perror (filename);
1640: continue;
1641: }
1642:
1643: switch (st.st_mode & S_IFMT)
1644: {
1645: case S_IFDIR:
1646: /* if we find a directory, we erase it, recursively */
1.128 cvs 1647: strcat (filename, DIR_STR);
1648: RecCleanCache (filename);
1649: rmdir (filename);
1.118 cvs 1650: break;
1651: case S_IFLNK:
1652: /* skip any links we find */
1653: continue;
1654: break;
1655: default:
1656: /* erase the filename */
1657: TtaFileUnlink (filename);
1658: break;
1659: }
1660: }
1661: closedir (dp);
1662: }
1.128 cvs 1663: #endif /* _WINDOWS */
1.118 cvs 1664: #endif /* AMAYA_WWW_CACHE */
1665:
1.116 cvs 1666: /*----------------------------------------------------------------------
1667: CacheInit
1668: Reads the cache settings from the thot.ini file.
1669: ----------------------------------------------------------------------*/
1.118 cvs 1670: #ifdef __STDC__
1.116 cvs 1671: static void CacheInit (void)
1.118 cvs 1672: #else
1673: static void Cacheinit ()
1674: #endif
1675:
1.116 cvs 1676: {
1677: #ifndef AMAYA_WWW_CACHE
1678: HTCacheMode_setEnabled (NO);
1679:
1680: #else /* AMAYA_WWW_CACHE */
1681: char *strptr;
1682: char *cache_dir = NULL;
1.185 cvs 1683: char *real_dir = NULL;
1.130 cvs 1684: char *cache_lockfile;
1685: int cache_size;
1.176 cvs 1686: int cache_entry_size;
1.191 cvs 1687: ThotBool cache_enabled;
1688: ThotBool cache_locked;
1689: ThotBool tmp_bool;
1.130 cvs 1690:
1.185 cvs 1691: int i;
1692:
1.116 cvs 1693: /* activate cache? */
1.165 cvs 1694: strptr = (char *) TtaGetEnvString ("ENABLE_CACHE");
1.152 cvs 1695: if (strptr && *strptr && strcasecmp (strptr, "yes" ))
1.130 cvs 1696: cache_enabled = NO;
1.116 cvs 1697: else
1.130 cvs 1698: cache_enabled = YES;
1.116 cvs 1699:
1.151 cvs 1700: /* cache protected documents? */
1.152 cvs 1701: strptr = (char *) TtaGetEnvString ("CACHE_PROTECTED_DOCS");
1702: if (strptr && *strptr && !strcasecmp (strptr, "yes" ))
1.151 cvs 1703: HTCacheMode_setProtected (YES);
1704: else
1705: HTCacheMode_setProtected (NO);
1706:
1.116 cvs 1707: /* get the cache dir (or use a default one) */
1708: strptr = (char *) TtaGetEnvString ("CACHE_DIR");
1709: if (strptr && *strptr)
1710: {
1.185 cvs 1711: real_dir = TtaGetMemory (strlen (strptr) + strlen (CACHE_DIR_NAME) + 20);
1712: strcpy (real_dir, strptr);
1713: if (*(real_dir + strlen (real_dir) - 1) != DIR_SEP)
1714: strcat (real_dir, DIR_STR);
1.116 cvs 1715: }
1716: else
1717: {
1.185 cvs 1718: real_dir = TtaGetMemory (strlen (TempFileDirectory)
1719: + strlen (CACHE_DIR_NAME) + 20);
1.186 cvs 1720: sprintf (real_dir, "%s%s", TempFileDirectory, CACHE_DIR_NAME);
1.185 cvs 1721: }
1722:
1723: /* compatiblity with previous versions of Amaya: does real_dir
1724: include CACHE_DIR_NAME? If not, add it */
1725: strptr = strstr (real_dir, CACHE_DIR_NAME);
1726: if (!strptr)
1727: {
1728: strcat (real_dir, CACHE_DIR_NAME);
1729: }
1730: else
1731: {
1732: i = strlen (CACHE_DIR_NAME);
1733: if (strptr[i] != EOS)
1734: strcat (real_dir, CACHE_DIR_NAME);
1.116 cvs 1735: }
1.185 cvs 1736:
1737:
1738: cache_dir = TtaGetMemory (strlen (real_dir) + 10);
1.190 cvs 1739: sprintf (cache_dir, "file:%s", real_dir);
1.116 cvs 1740:
1741: /* get the cache size (or use a default one) */
1.185 cvs 1742: strptr = (char *) TtaGetEnvString ("CACHE_SIZE");
1.116 cvs 1743: if (strptr && *strptr)
1.185 cvs 1744: cache_size = atoi (strptr);
1.116 cvs 1745: else
1746: cache_size = DEFAULT_CACHE_SIZE;
1747:
1.176 cvs 1748: /* get the max cached file size (or use a default one) */
1749: if (!TtaGetEnvInt ("MAX_CACHE_ENTRY_SIZE", &cache_entry_size))
1750: cache_entry_size = DEFAULT_MAX_CACHE_ENTRY_SIZE;
1751:
1.130 cvs 1752: if (cache_enabled)
1.116 cvs 1753: {
1754: /* how to remove the lock? force remove it? */
1.185 cvs 1755: cache_lockfile = TtaGetMemory (strlen (real_dir) + 20);
1756: strcpy (cache_lockfile, real_dir);
1.186 cvs 1757: strcat (cache_lockfile, ".lock");
1.130 cvs 1758: cache_locked = FALSE;
1759: if (TtaFileExist (cache_lockfile)
1760: && !(cache_locked = test_cachelock (cache_lockfile)))
1.116 cvs 1761: {
1.130 cvs 1762: #ifdef DEBUG_LIBWWW
1763: fprintf (stderr, "found a stale cache, removing it\n");
1764: #endif /* DEBUG_LIBWWW */
1765: /* remove the lock and clean the cache (the clean cache
1766: will remove all, making the following call unnecessary */
1767: /* little trick to win some memory */
1768: strptr = strrchr (cache_lockfile, '.');
1769: *strptr = EOS;
1770: RecCleanCache (cache_lockfile);
1771: *strptr = '.';
1.116 cvs 1772: }
1773:
1.130 cvs 1774: if (!cache_locked)
1775: {
1776: /* initialize the cache if there's no other amaya
1777: instance running */
1.177 cvs 1778: HTCacheMode_setMaxCacheEntrySize (cache_entry_size);
1779: if (TtaGetEnvBoolean ("CACHE_EXPIRE_IGNORE", &tmp_bool)
1780: && tmp_bool)
1781: HTCacheMode_setExpires (HT_EXPIRES_IGNORE);
1782: else
1783: HTCacheMode_setExpires (HT_EXPIRES_AUTO);
1784: TtaGetEnvBoolean ("CACHE_DISCONNECTED_MODE", &tmp_bool);
1785: if (tmp_bool)
1786: HTCacheMode_setDisconnected (HT_DISCONNECT_NORMAL);
1787: else
1788: HTCacheMode_setDisconnected (HT_DISCONNECT_NONE);
1.188 cvs 1789: if (HTCacheInit (cache_dir, cache_size))
1.130 cvs 1790: {
1.188 cvs 1791: if (set_cachelock (cache_lockfile) == -1)
1792: /* couldn't open the .lock file, so, we close the cache to
1793: be in the safe side */
1794: {
1795: HTCacheTerminate ();
1796: HTCacheMode_setEnabled (FALSE);
1797: #ifdef DEBUG_LIBWWW
1798: fprintf (stderr, "couldnt set the cache lock\n");
1799: #endif /* DEBUG_LIBWWW */
1800: }
1.130 cvs 1801: #ifdef DEBUG_LIBWWW
1.188 cvs 1802: else
1803: fprintf (stderr, "created the cache lock\n");
1.130 cvs 1804: #endif /* DEBUG_LIBWWW */
1805: }
1.188 cvs 1806: else
1807: {
1.130 cvs 1808: #ifdef DEBUG_LIBWWW
1.188 cvs 1809: fprintf (stderr, "couldn't create the cache\n");
1810: #endif /* DEBUG_LIBWWW */
1811: HTCacheTerminate ();
1812: }
1.130 cvs 1813: }
1814: else
1815: {
1.185 cvs 1816: HTCacheMode_setEnabled (FALSE);
1.130 cvs 1817: #ifdef DEBUG_LIBWWW
1818: fprintf (stderr, "lock detected, starting libwww without a cache/n");
1819: #endif /* DEBUG_LIBWWW */
1820: }
1821: TtaFreeMemory (cache_lockfile);
1.116 cvs 1822: }
1823: else
1.185 cvs 1824: {
1825: HTCacheMode_setEnabled (FALSE);
1826: }
1.116 cvs 1827: if (cache_dir)
1828: TtaFreeMemory (cache_dir);
1.189 cvs 1829: if (real_dir)
1830: TtaFreeMemory (real_dir);
1.185 cvs 1831: /* warn the user if the cache isn't active */
1832: if (cache_enabled && !HTCacheMode_enabled ())
1833: {
1834: #ifdef _WINDOWS
1835: MessageBox (NULL, TtaGetMessage (AMAYA, AM_CANT_CREATE_CACHE),
1.187 cvs 1836: "Cache", MB_OK);
1.185 cvs 1837: #else /* !_WINDOWS */
1838: TtaDisplayMessage (CONFIRM, TtaGetMessage (AMAYA, AM_CANT_CREATE_CACHE),
1839: NULL);
1840: #endif /* _WINDOWS */
1841: }
1.116 cvs 1842: #endif /* AMAYA_WWW_CACHE */
1.15 cvs 1843: }
1844:
1845: /*----------------------------------------------------------------------
1.97 cvs 1846: ProxyInit
1847: Reads any proxies settings which may be declared as environmental
1848: variables or in the thot.ini file. The former overrides the latter.
1849: ----------------------------------------------------------------------*/
1.118 cvs 1850: #ifdef __STDC__
1.97 cvs 1851: static void ProxyInit (void)
1.118 cvs 1852: #else
1853: static void ProxyInit ()
1854: #endif /* __STDC__ */
1.97 cvs 1855: {
1856: char *strptr;
1857: char *str = NULL;
1858: char *name;
1859:
1860: /* get the proxy settings from the thot.ini file */
1861: strptr = (char *) TtaGetEnvString ("HTTP_PROXY");
1862: if (strptr && *strptr)
1863: HTProxy_add ("http", strptr);
1864: /* get the no_proxy settings from the thot.ini file */
1865: strptr = (char *) TtaGetEnvString ("NO_PROXY");
1866: if (strptr && *strptr)
1867: {
1868: str = TtaStrdup (strptr); /* Get copy we can mutilate */
1869: strptr = str;
1870: while ((name = HTNextField (&strptr)) != NULL) {
1871: char *portstr = strchr (name, ':');
1872: unsigned port=0;
1873: if (portstr) {
1874: *portstr++ = '\0';
1.116 cvs 1875: if (*portstr) port = (unsigned) atoi (portstr);
1.97 cvs 1876: }
1877: /* Register it for all access methods */
1878: HTNoProxy_add (name, NULL, port);
1879: }
1880: TtaFreeMemory (str);
1881: }
1882:
1883: /* use libw3's routine to get all proxy settings from the environment */
1884: HTProxy_getEnvVar ();
1885: }
1886:
1887:
1888: /*----------------------------------------------------------------------
1.17 cvs 1889: AHTProfile_newAmaya
1890: creates the Amaya client profile for libwww.
1.15 cvs 1891: ----------------------------------------------------------------------*/
1892: #ifdef __STDC__
1893: static void AHTProfile_newAmaya (char *AppName, char *AppVersion)
1894: #else /* __STDC__ */
1895: static void AHTProfile_newAmaya (AppName, AppVersion)
1896: char *AppName;
1897: char *AppVersion;
1898: #endif /* __STDC__ */
1.4 cvs 1899: {
1.158 cvs 1900: char * strptr;
1901:
1.4 cvs 1902: /* If the Library is not already initialized then do it */
1903: if (!HTLib_isInitialized ())
1904: HTLibInit (AppName, AppVersion);
1905:
1906: if (!converters)
1907: converters = HTList_new ();
1.27 cvs 1908: if (!acceptTypes)
1909: acceptTypes = HTList_new ();
1.151 cvs 1910: if (!transfer_encodings)
1911: transfer_encodings = HTList_new ();
1912: if (!content_encodings)
1913: content_encodings = HTList_new ();
1.4 cvs 1914:
1.169 cvs 1915: /* inhibits libwww's automatic file_suffix_binding */
1916: HTFile_doFileSuffixBinding (FALSE);
1917:
1.4 cvs 1918: /* Register the default set of transport protocols */
1919: HTTransportInit ();
1920:
1921: /* Register the default set of application protocol modules */
1922: AHTProtocolInit ();
1923:
1.116 cvs 1924: /* Register the default set of messages and dialog functions */
1925: AHTAlertInit ();
1926: HTAlert_setInteractive (YES);
1927:
1928: #ifdef AMAYA_WWW_CACHE
1929: /* Enable the persistent cache */
1930: CacheInit ();
1931: #else
1932: HTCacheMode_setEnabled (NO);
1933: #endif /* AMAYA_WWW_CACHE */
1.4 cvs 1934:
1935: /* Register the default set of BEFORE and AFTER filters */
1936: AHTNetInit ();
1937:
1938: /* Set up the default set of Authentication schemes */
1.167 cvs 1939: HTAA_newModule ("basic", HTBasic_generate, HTBasic_parse, NULL,
1940: HTBasic_delete);
1.158 cvs 1941: /* activate MDA by defaul */
1942: strptr = (char *) TtaGetEnvString ("ENABLE_MDA");
1943: if (!strptr || (strptr && *strptr && strcasecmp (strptr, "no" )))
1944: HTAA_newModule ("digest", HTDigest_generate, HTDigest_parse,
1.167 cvs 1945: HTDigest_updateInfo, HTDigest_delete);
1.4 cvs 1946:
1.97 cvs 1947: /* Get any proxy settings */
1948: ProxyInit ();
1.4 cvs 1949:
1950: /* Register the default set of converters */
1951: AHTConverterInit (converters);
1.151 cvs 1952: HTFormat_setConversion (converters);
1.27 cvs 1953: AHTAcceptTypesInit (acceptTypes);
1.4 cvs 1954:
1955: /* Register the default set of transfer encoders and decoders */
1.151 cvs 1956: HTTransferEncoderInit (transfer_encodings);
1.190 cvs 1957: HTFormat_setTransferCoding (transfer_encodings);
1958: /* Register the default set of content encoders and decoders */
1959: HTContentEncoderInit (content_encodings);
1960: /* ignore all other encoding formats (or libwww will send them
1.181 cvs 1961: thru a blackhole otherwise */
1962: HTCoding_add (content_encodings, "*", NULL, HTIdentityCoding, 1.0);
1.151 cvs 1963: if (HTList_count(content_encodings) > 0)
1964: HTFormat_setContentCoding(content_encodings);
1965: else
1966: {
1967: HTList_delete(content_encodings);
1968: content_encodings = NULL;
1969: }
1.4 cvs 1970:
1971: /* Register the default set of MIME header parsers */
1.74 cvs 1972: HTMIMEInit (); /* must be called again for language selector */
1.4 cvs 1973:
1974: /* Register the default set of Icons for directory listings */
1.27 cvs 1975: /*HTIconInit(NULL); *//* experimental */
1.4 cvs 1976: }
1977:
1.5 cvs 1978: /*----------------------------------------------------------------------
1.17 cvs 1979: AHTProfile_delete
1980: deletes the Amaya client profile.
1.5 cvs 1981: ----------------------------------------------------------------------*/
1.4 cvs 1982: #ifdef __STDC__
1983: static void AHTProfile_delete (void)
1984: #else
1985: static void AHTProfile_delete ()
1.7 cvs 1986: #endif /* __STDC__ */
1.4 cvs 1987: {
1.22 cvs 1988:
1989: /* free the Amaya global context */
1.151 cvs 1990:
1991: /* Clean up all the registred converters */
1992: HTFormat_deleteAll ();
1993: if (acceptTypes)
1.74 cvs 1994: HTConversion_deleteAll (acceptTypes);
1.151 cvs 1995:
1.74 cvs 1996: HTList_delete (Amaya->docid_status);
1997: HTList_delete (Amaya->reqlist);
1998: TtaFreeMemory (Amaya);
1.61 cvs 1999:
1.151 cvs 2000: if (HTLib_isInitialized ())
1.74 cvs 2001:
1.120 cvs 2002: #ifdef _WINDOWS
1.151 cvs 2003: HTEventTerminate ();
1.120 cvs 2004: #endif _WINDOWS;
1.74 cvs 2005:
1.151 cvs 2006: /* Clean up the persistent cache (if any) */
1.116 cvs 2007: #ifdef AMAYA_WWW_CACHE
1.151 cvs 2008: clear_cachelock ();
2009: HTCacheTerminate ();
1.116 cvs 2010: #endif /* AMAYA_WWW_CACHE */
1.74 cvs 2011:
1.151 cvs 2012: /* Terminate libwww */
2013: HTLibTerminate ();
1.4 cvs 2014: }
2015:
1.5 cvs 2016: /*----------------------------------------------------------------------
1.116 cvs 2017: AmayacontextInit
2018: initializes an internal Amaya context for our libwww interface
2019: ----------------------------------------------------------------------*/
2020: #ifdef __STDC__
2021: static void AmayaContextInit ()
2022: #else
2023: static void AmayaContextInit ()
2024: #endif
2025:
2026: {
1.140 cvs 2027: AmayaAlive_flag = TRUE;
1.116 cvs 2028: /* Initialization of the global context */
2029: Amaya = (AmayaContext *) TtaGetMemory (sizeof (AmayaContext));
2030: Amaya->reqlist = HTList_new ();
2031: Amaya->docid_status = HTList_new ();
2032: Amaya->open_requests = 0;
2033: }
2034:
2035: /*----------------------------------------------------------------------
1.17 cvs 2036: QueryInit
2037: initializes the libwww interface
1.5 cvs 2038: ----------------------------------------------------------------------*/
1.4 cvs 2039: #ifdef __STDC__
2040: void QueryInit ()
2041: #else
2042: void QueryInit ()
2043: #endif
2044: {
1.151 cvs 2045: char *strptr;
2046: int tmp_i;
2047: long tmp_l;
1.4 cvs 2048:
1.116 cvs 2049: AmayaContextInit ();
1.4 cvs 2050: AHTProfile_newAmaya (HTAppName, HTAppVersion);
1.140 cvs 2051: CanDoStop_set (TRUE);
1.4 cvs 2052:
1.116 cvs 2053: #ifdef _WINDOWS
1.125 cvs 2054: HTEventInit ();
1.116 cvs 2055: #endif /* _WINDOWS */
1.72 cvs 2056:
1.123 cvs 2057: #ifndef _WINDOWS
1.116 cvs 2058: HTEvent_setRegisterCallback ((void *) AHTEvent_register);
2059: HTEvent_setUnregisterCallback ((void *) AHTEvent_unregister);
1.120 cvs 2060: HTTimer_registerSetTimerCallback ((void *) AMAYA_SetTimer);
2061: HTTimer_registerDeleteTimerCallback ((void *) AMAYA_DeleteTimer);
1.116 cvs 2062: #endif /* !_WINDOWS */
1.190 cvs 2063:
2064: /*** @@@@
1.176 cvs 2065: WWW_TraceFlag = 0;
1.190 cvs 2066: ***/
1.74 cvs 2067: #ifdef DEBUG_LIBWWW
1.116 cvs 2068: /* forwards error messages to our own function */
2069: WWW_TraceFlag = THD_TRACE;
1.138 cvs 2070: HTTrace_setCallback(LineTrace);
1.4 cvs 2071: /* Trace activation (for debugging) */
1.148 cvs 2072: /***
1.138 cvs 2073: WWW_TraceFlag = SHOW_CORE_TRACE | SHOW_THREAD_TRACE | SHOW_PROTOCOL_TRACE;
2074: WWW_TraceFlag |= 0xFFFFFFFFl;
2075: ***/
1.152 cvs 2076: #endif
2077:
1.148 cvs 2078: /* Setting up different network parameters */
1.151 cvs 2079:
1.148 cvs 2080: /* Maximum number of simultaneous open sockets */
1.151 cvs 2081: strptr = (char *) TtaGetEnvString ("MAX_SOCKET");
2082: if (strptr && *strptr)
2083: tmp_i = atoi (strptr);
2084: else
2085: tmp_i = DEFAULT_MAX_SOCKET;
2086: HTNet_setMaxSocket (tmp_i);
2087:
1.148 cvs 2088: /* different network services timeouts */
1.151 cvs 2089: /* dns timeout */
2090: strptr = (char *) TtaGetEnvString ("DNS_TIMEOUT");
2091: if (strptr && *strptr)
2092: tmp_i = atoi (strptr);
2093: else
2094: tmp_i = DEFAULT_DNS_TIMEOUT;
2095: HTDNS_setTimeout (tmp_i);
2096:
2097: /* persistent connections timeout */
1.152 cvs 2098: strptr = (char *) TtaGetEnvString ("PERSIST_CX_TIMEOUT");
1.151 cvs 2099: if (strptr && *strptr)
2100: tmp_l = atol (strptr);
2101: else
2102: tmp_l = DEFAULT_PERSIST_TIMEOUT;
2103: HTHost_setPersistTimeout (tmp_l);
2104:
1.148 cvs 2105: /* default timeout in ms */
1.151 cvs 2106: strptr = (char *) TtaGetEnvString ("NET_EVENT_TIMEOUT");
2107: if (strptr && *strptr)
2108: tmp_i = atoi (strptr);
2109: else
2110: tmp_i = DEFAULT_NET_EVENT_TIMEOUT;
2111: HTHost_setEventTimeout (tmp_i);
2112:
1.173 cvs 2113: HTRequest_setMaxRetry (8);
1.4 cvs 2114: #ifdef CATCH_SIG
1.148 cvs 2115: signal (SIGPIPE, SIG_IGN);
1.4 cvs 2116: #endif
1.15 cvs 2117: }
2118:
2119: /*----------------------------------------------------------------------
1.17 cvs 2120: LoopForStop
1.136 cvs 2121: a copy of the Thop event loop so we can handle the stop button in Unix
2122: and preemptive requests under Windows
1.15 cvs 2123: ----------------------------------------------------------------------*/
2124: #ifdef __STDC__
2125: static int LoopForStop (AHTReqContext * me)
2126: #else
2127: static int LoopForStop (AHTReqContext * me)
2128: #endif
2129: {
1.136 cvs 2130: #ifdef _WINDOWS
2131: MSG msg;
2132: unsigned long libwww_msg;
2133: HWND old_active_window, libwww_window;
2134: int status_req = HT_OK;
2135:
2136: old_active_window = GetActiveWindow ();
2137: libwww_window = HTEventList_getWinHandle (&libwww_msg);
1.137 cvs 2138:
1.149 cvs 2139: while (me->reqStatus != HT_END && me->reqStatus != HT_ERR
2140: && me->reqStatus != HT_ABORT && AmayaIsAlive () &&
2141: GetMessage (&msg, NULL, 0, 0))
2142: {
2143: if (msg.message != WM_QUIT)
2144: {
2145: TranslateMessage (&msg);
2146: DispatchMessage (&msg);
2147: }
2148: else
2149: break;
2150: }
1.136 cvs 2151: if (!AmayaIsAlive ())
2152: /* Amaya was killed by one of the callback handlers */
2153: exit (0);
2154: #else /* _WINDOWS */
1.25 cvs 2155: extern ThotAppContext app_cont;
1.51 cvs 2156: XEvent ev;
2157: XtInputMask status;
1.17 cvs 2158: int status_req = HT_OK;
1.15 cvs 2159:
2160: /* to test the async calls */
1.17 cvs 2161: /* Loop while waiting for new events, exists when the request is over */
1.15 cvs 2162: while (me->reqStatus != HT_ABORT &&
2163: me->reqStatus != HT_END &&
1.69 cvs 2164: me->reqStatus != HT_ERR) {
1.116 cvs 2165: if (!AmayaIsAlive ())
1.69 cvs 2166: /* Amaya was killed by one of the callback handlers */
2167: exit (0);
2168:
2169: status = XtAppPending (app_cont);
1.144 cvs 2170: if (status & XtIMXEvent)
2171: {
2172: XtAppNextEvent (app_cont, &ev);
2173: TtaHandleOneEvent (&ev);
2174: }
2175: else if (status != 0)
2176: XtAppProcessEvent (app_cont, XtIMAll);
1.69 cvs 2177: }
1.136 cvs 2178: #endif /* _WINDOWS */
1.69 cvs 2179: switch (me->reqStatus) {
2180: case HT_ERR:
2181: case HT_ABORT:
1.130 cvs 2182: status_req = NO;
1.15 cvs 2183: break;
2184:
1.69 cvs 2185: case HT_END:
1.130 cvs 2186: status_req = YES;
1.15 cvs 2187: break;
2188:
1.69 cvs 2189: default:
1.15 cvs 2190: break;
1.69 cvs 2191: }
1.15 cvs 2192: return (status_req);
1.4 cvs 2193: }
2194:
1.5 cvs 2195: /*----------------------------------------------------------------------
1.15 cvs 2196: QueryClose
1.21 cvs 2197: closes all existing threads, frees all non-automatically deallocated
2198: memory and then ends libwww.
1.5 cvs 2199: ----------------------------------------------------------------------*/
1.116 cvs 2200: void QueryClose ()
1.4 cvs 2201: {
1.24 cvs 2202:
1.140 cvs 2203: AmayaAlive_flag = FALSE;
1.24 cvs 2204:
1.116 cvs 2205: /* remove all the handlers and callbacks that may output a message to
2206: a non-existent Amaya window */
1.130 cvs 2207: #ifndef _WINDOWS
1.116 cvs 2208: HTNet_deleteAfter (AHTLoadTerminate_handler);
1.130 cvs 2209: #endif _WINDOWS
1.116 cvs 2210: HTNet_deleteAfter (redirection_handler);
2211: HTAlertCall_deleteAll (HTAlert_global () );
2212: HTAlert_setGlobal ((HTList *) NULL);
2213: HTEvent_setRegisterCallback ((HTEvent_registerCallback *) NULL);
2214: HTEvent_setUnregisterCallback ((HTEvent_unregisterCallback *) NULL);
2215: #ifndef _WINDOWS
2216: /** need to erase all existing timers too **/
2217: HTTimer_registerSetTimerCallback (NULL);
2218: HTTimer_registerDeleteTimerCallback (NULL);
2219: #endif /* !_WINDOWS */
2220: HTHost_setActivateRequestCallback (NULL);
2221: Thread_deleteAll ();
1.21 cvs 2222:
1.116 cvs 2223: HTProxy_deleteAll ();
2224: HTNoProxy_deleteAll ();
2225: HTGateway_deleteAll ();
2226: AHTProfile_delete ();
2227: }
2228:
2229: /*----------------------------------------------------------------------
2230: NextNameValue
2231: ---------------------------------------------------------------------*/
2232: #ifdef __STDC__
2233: static char * NextNameValue (char ** pstr, char **name, char **value)
2234: #else
2235: static char * NextNameValue (pstr, name, value);
2236: char ** pstr;
2237: char **name;
2238: char **value;
2239: #endif /* __STDC__ */
2240: {
2241: char * p = *pstr;
2242: char * start = NULL;
2243: if (!pstr || !*pstr) return NULL;
2244:
2245: if (!*p) {
2246: *pstr = p;
2247: *name = NULL;
2248: *value = NULL;
2249: return NULL; /* No field */
2250: }
2251:
2252: /* Now search for the next '&' and ';' delimitators */
2253: start = p;
2254: while (*p && *p != '&' && *p != ';') p++;
2255: if (*p)
2256: *p++ = '\0';
2257: *pstr = p;
2258:
2259: /* Search for the name and value */
2260: *name = start;
2261: p = start;
2262:
2263: while(*p && *p != '=')
2264: p++;
2265: if (*p)
2266: *p++ = '\0';
2267: *value = p;
2268:
2269: return start;
2270: }
2271:
2272: /*----------------------------------------------------------------------
2273: PrepareFormdata
2274: ---------------------------------------------------------------------*/
2275: #ifdef __STDC__
2276: static HTAssocList * PrepareFormdata (char *string)
2277: #else
2278: static HTAssocList * PrepareFormdata (string)
2279: char *string;
2280: #endif /* __STDC__ */
2281: {
2282: char * tmp_string, * tmp_string_ptr;
2283: char * name;
2284: char * value;
2285: HTAssocList * formdata;
2286:
2287: if (!string)
2288: return NULL;
2289:
2290: /* store the ptr in another variable, as the original address will
2291: change
2292: */
2293:
2294: tmp_string_ptr = tmp_string = TtaStrdup (string);
2295: formdata = HTAssocList_new();
2296:
2297: while (*tmp_string)
2298: {
2299: NextNameValue (&tmp_string, &name, &value);
2300: HTAssocList_addObject(formdata,
2301: name, value);
2302: }
2303:
2304: TtaFreeMemory (tmp_string_ptr);
2305: return formdata;
1.4 cvs 2306: }
2307:
1.99 cvs 2308:
2309: /*----------------------------------------------------------------------
2310: InvokeGetObjectWWW_callback
2311: A simple function to invoke a callback function whenever there's an error
2312: in GetObjectWWW
2313: ---------------------------------------------------------------------*/
2314:
1.116 cvs 2315: #ifdef __STDC__
2316: void InvokeGetObjectWWW_callback (int docid, char *urlName, char *outputfile, TTcbf *terminate_cbf, void *context_tcbf, int status)
1.99 cvs 2317: #else
1.111 cvs 2318: void InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf, context_tcbf, status)
1.99 cvs 2319: int docid;
2320: char *urlName;
2321: char *outputfile;
2322: TTcbf *terminate_cbf;
2323: void *context_tcbf;
1.116 cvs 2324: #endif /* __STDC__ */
1.99 cvs 2325: {
2326: if (!terminate_cbf)
2327: return;
2328:
1.116 cvs 2329: (*terminate_cbf) (docid, status, urlName, outputfile,
1.99 cvs 2330: NULL, context_tcbf);
2331: }
2332:
2333:
2334:
1.5 cvs 2335: /*----------------------------------------------------------------------
1.15 cvs 2336: GetObjectWWW
1.17 cvs 2337: this function requests a resource designated by a URLname into a
2338: temporary filename. The download can come from a simple GET operation,
2339: or can come from POSTING/GETTING a form. In the latter
2340: case, the function receives a query string to send to the server.
2341:
1.5 cvs 2342: 4 file retrieval modes are proposed:
2343: AMAYA_SYNC : blocking mode
2344: AMAYA_ISYNC : incremental, blocking mode
2345: AMAYA_ASYNC : non-blocking mode
2346: AMAYA_IASYNC : incremental, non-blocking mode
2347:
2348: In the incremental mode, each time a package arrives, it will be
2349: stored in the temporary file. In addition, if an
2350: incremental_callback function is defined, this function will be
2351: called and handled a copy of the newly received data package.
2352: Finally, if a terminate_callback function is defined, it will be
2353: invoked when the request terminates. The caller of this function
1.4 cvs 2354: can define two different contexts to be passed to the callback
2355: functions.
2356:
2357: When the function is called with the SYNC mode, the function will
2358: return only when the requested file has been loaded.
2359: The ASYNC mode will immediately return after setting up the
2360: call.
2361:
2362: Notes:
2363: At the end of a succesful request, the urlName string contains the
2364: name of the actually retrieved URL. As a URL can change over the time,
2365: (e.g., be redirected elsewhere), it is advised that the function
1.17 cvs 2366: caller verify the value of the urlName variable at the end of
1.4 cvs 2367: a request.
2368:
2369: Inputs:
2370: - docid Document identifier for the set of objects being
2371: retrieved.
2372: - urlName The URL to be retrieved (MAX_URL_LENGTH chars length)
2373: - outputfile A pointer to an empty string of MAX_URL_LENGTH.
2374: - mode The retrieval mode.
2375: - incremental_cbf
2376: - context_icbf
2377: Callback and context for the incremental modes
2378: - terminate_cbf
2379: - context_icbf
2380: Callback and context for a terminate handler
1.17 cvs 2381: -error_html if TRUE, then display any server error message as an
2382: HTML document.
1.88 cvs 2383: - content_type a string
2384:
1.4 cvs 2385: Outputs:
2386: - urlName The URL that was retrieved
2387: - outputfile The name of the temporary file which holds the
2388: retrieved data. (Only in case of success)
1.88 cvs 2389: - if content_type wasn't NULL, it will contain a copy of the parameter
2390: sent in the HTTP answer
1.4 cvs 2391: Returns:
2392: HT_ERROR
2393: HT_OK
1.5 cvs 2394:
2395: ----------------------------------------------------------------------*/
1.4 cvs 2396: #ifdef __STDC__
1.127 cvs 2397: int GetObjectWWW (int docid, char* urlName, char* formdata,
1.116 cvs 2398: char* outputfile, int mode, TIcbf* incremental_cbf,
2399: void* context_icbf, TTcbf* terminate_cbf,
1.191 cvs 2400: void* context_tcbf, ThotBool error_html, char *content_type)
1.4 cvs 2401: #else
1.127 cvs 2402: int GetObjectWWW (docid, urlName, formdata, outputfile, mode,
1.116 cvs 2403: incremental_cbf, context_icbf,
1.88 cvs 2404: terminate_cbf, context_tcbf, error_html, content_type)
1.73 cvs 2405: int docid;
2406: char *urlName;
1.127 cvs 2407: char *formdata;
1.73 cvs 2408: char *outputfile;
2409: int mode;
2410: TIcbf *incremental_cbf;
2411: void *context_icbf;
2412: TTcbf *terminate_cbf;
2413: void *context_tcbf;
1.191 cvs 2414: ThotBool error_html;
1.88 cvs 2415: char *content_type;
1.4 cvs 2416: #endif
2417: {
2418: AHTReqContext *me;
2419: char *ref;
1.107 cvs 2420: int status, l;
1.114 cvs 2421: int tempsubdir;
1.191 cvs 2422: ThotBool bool_tmp;
1.7 cvs 2423:
1.116 cvs 2424: if (urlName == NULL || docid == 0 || outputfile == NULL)
2425: {
2426: /* no file to be loaded */
2427: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_BAD_URL), urlName);
1.69 cvs 2428:
1.116 cvs 2429: if (error_html)
1.69 cvs 2430: /* so we can show the error message */
2431: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.116 cvs 2432: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
2433: context_tcbf, HT_ERROR);
2434: return HT_ERROR;
2435: }
1.7 cvs 2436:
1.159 cvs 2437: /* if it's a 'docImage', we have already downloaded it */
2438: if (!strncmp ("internal:", urlName, 9))
2439: {
2440: strcpy (outputfile, urlName);
2441: InvokeGetObjectWWW_callback (docid, urlName, outputfile,
2442: terminate_cbf, context_tcbf, HT_OK);
2443: return HT_OK;
2444: }
2445:
1.4 cvs 2446: /* do we support this protocol? */
1.116 cvs 2447: if (IsValidProtocol (urlName) == NO)
2448: {
2449: /* return error */
2450: outputfile[0] = EOS; /* file could not be opened */
2451: TtaSetStatus (docid, 1,
2452: TtaGetMessage (AMAYA, AM_GET_UNSUPPORTED_PROTOCOL),
2453: urlName);
2454:
2455: if (error_html)
1.69 cvs 2456: /* so we can show the error message */
2457: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.116 cvs 2458: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
2459: context_tcbf, HT_ERROR);
2460: return HT_ERROR;
2461: }
1.4 cvs 2462:
1.114 cvs 2463: /* we store CSS in subdir named 0; all the other files go to a subidr
2464: named after their own docid */
2465:
2466: tempsubdir = (mode & AMAYA_LOAD_CSS) ? 0 : docid;
2467:
1.116 cvs 2468: /* create a tempfilename */
2469: sprintf (outputfile, "%s%c%d%c%04dAM",
2470: TempFileDirectory, DIR_SEP, tempsubdir, DIR_SEP, object_counter);
2471: /* update the object_counter (used for the tempfilename) */
1.4 cvs 2472: object_counter++;
1.116 cvs 2473:
1.4 cvs 2474: /* normalize the URL */
1.45 cvs 2475: ref = AmayaParseUrl (urlName, "", AMAYA_PARSE_ALL);
1.4 cvs 2476: /* should we abort the request if we could not normalize the url? */
1.69 cvs 2477: if (ref == (char*) NULL || ref[0] == EOS) {
2478: /*error */
2479: outputfile[0] = EOS;
2480: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_BAD_URL), urlName);
2481:
2482: if (error_html)
1.116 cvs 2483: /* so we can show the error message */
2484: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.99 cvs 2485: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
1.116 cvs 2486: context_tcbf, HT_ERROR);
1.69 cvs 2487: return HT_ERROR;
2488: }
1.116 cvs 2489:
1.4 cvs 2490: /* verify if that file name existed */
1.9 cvs 2491: if (TtaFileExist (outputfile))
1.77 cvs 2492: TtaFileUnlink (outputfile);
1.116 cvs 2493:
1.4 cvs 2494: /* Initialize the request structure */
2495: me = AHTReqContext_new (docid);
1.116 cvs 2496: if (me == NULL)
2497: {
2498: outputfile[0] = EOS;
2499: /* need an error message here */
2500: TtaFreeMemory (ref);
2501: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
2502: context_tcbf, HT_ERROR);
2503: return HT_ERROR;
2504: }
2505:
1.4 cvs 2506: /* Specific initializations for POST and GET */
1.116 cvs 2507: if (mode & AMAYA_FORM_POST)
2508: {
2509: me->method = METHOD_POST;
2510: HTRequest_setMethod (me->request, METHOD_POST);
2511: }
2512: else
2513: {
2514: me->method = METHOD_GET;
2515: if (!HasKnownFileSuffix (ref))
2516: HTRequest_setConversion(me->request, acceptTypes, TRUE);
2517: }
1.93 cvs 2518:
1.116 cvs 2519: /* Common initialization for all HTML methods */
1.4 cvs 2520: me->mode = mode;
2521: me->error_html = error_html;
2522: me->incremental_cbf = incremental_cbf;
2523: me->context_icbf = context_icbf;
2524: me->terminate_cbf = terminate_cbf;
2525: me->context_tcbf = context_tcbf;
1.64 cvs 2526:
1.69 cvs 2527: /* for the async. request modes, we need to have our
1.4 cvs 2528: own copy of outputfile and urlname
1.116 cvs 2529: */
1.4 cvs 2530:
1.116 cvs 2531: if ((mode & AMAYA_ASYNC) || (mode & AMAYA_IASYNC))
2532: {
2533: l = strlen (outputfile);
2534: if (l > MAX_LENGTH)
2535: me->outputfile = TtaGetMemory (l + 2);
2536: else
2537: me->outputfile = TtaGetMemory (MAX_LENGTH + 2);
2538: strcpy (me->outputfile, outputfile);
2539: l = strlen (urlName);
2540: if (l > MAX_LENGTH)
2541: me->urlName = TtaGetMemory (l + 2);
2542: else
2543: me->urlName = TtaGetMemory (MAX_LENGTH + 2);
2544: strcpy (me->urlName, urlName);
2545: #ifdef _WINDOWS
2546: /* force windows ASYNC requests to always be non preemptive */
2547: HTRequest_setPreemptive (me->request, NO);
2548: #endif /*_WINDOWS */
2549: } /* AMAYA_ASYNC mode */
2550: else
2551: #ifdef _WINDOWS
2552: {
2553: me->outputfile = outputfile;
2554: me->urlName = urlName;
2555: /* force windows SYNC requests to always be non preemptive */
2556: HTRequest_setPreemptive (me->request, YES);
2557: }
2558: #else /* !_WINDOWS */
2559: {
2560: me->outputfile = outputfile;
2561: me->urlName = urlName;
2562: }
2563: /***
1.136 cvs 2564: In order to take into account the stop button,
2565: the requests will be always asynchronous, however, if mode=AMAYA_SYNC,
1.57 cvs 2566: we will loop until the document has been received or a stop signal
2567: generated
1.77 cvs 2568: ****/
1.116 cvs 2569: HTRequest_setPreemptive (me->request, NO);
2570: #endif /* _WINDOWS */
1.61 cvs 2571:
1.151 cvs 2572: /*
2573: ** Make sure that the first request is flushed immediately and not
2574: ** buffered in the output buffer
2575: */
2576: if (mode & AMAYA_FLUSH_REQUEST)
2577: HTRequest_setFlush(me->request, YES);
2578: HTRequest_setFlush(me->request, YES);
2579:
1.61 cvs 2580: /* prepare the URLname that will be displayed in teh status bar */
2581: ChopURL (me->status_urlName, me->urlName);
1.77 cvs 2582: TtaSetStatus (me->docid, 1,
2583: TtaGetMessage (AMAYA, AM_FETCHING),
2584: me->status_urlName);
1.4 cvs 2585:
2586: me->anchor = (HTParentAnchor *) HTAnchor_findAddress (ref);
1.45 cvs 2587: TtaFreeMemory (ref);
1.177 cvs 2588:
2589: TtaGetEnvBoolean ("CACHE_DISCONNECTED_MODE", &bool_tmp);
2590: if (!bool_tmp && (mode & AMAYA_NOCACHE))
1.116 cvs 2591: HTRequest_setReloadMode (me->request, HT_CACHE_FLUSH);
2592:
2593: /* prepare the query string and format for POST */
2594: if (mode & AMAYA_FORM_POST)
1.114 cvs 2595: {
1.116 cvs 2596: HTAnchor_setFormat ((HTParentAnchor *) me->anchor,
2597: HTAtom_for ("application/x-www-form-urlencoded"));
2598: HTAnchor_setLength ((HTParentAnchor *) me->anchor, me->block_size);
2599: HTRequest_setEntityAnchor (me->request, me->anchor);
2600: }
1.114 cvs 2601:
1.127 cvs 2602: /* create the formdata element for libwww */
2603: if (formdata)
2604: me->formdata = PrepareFormdata (formdata);
2605:
1.116 cvs 2606: /* do the request */
2607: if (mode & AMAYA_FORM_POST)
1.119 cvs 2608: {
1.191 cvs 2609: /* this call doesn't give back a ThotBool */
1.119 cvs 2610: HTParentAnchor * posted = NULL;
2611:
2612: posted = HTPostFormAnchor (me->formdata, (HTAnchor *) me->anchor,
2613: me->request);
2614: status = posted ? YES : NO;
2615: }
1.127 cvs 2616: else if (formdata)
2617: status = HTGetFormAnchor(me->formdata, (HTAnchor *) me->anchor,
2618: me->request);
1.116 cvs 2619: else
1.77 cvs 2620: status = HTLoadAnchor ((HTAnchor *) me->anchor, me->request);
1.69 cvs 2621:
1.123 cvs 2622: /* @@@ may need some special windows error msg here */
1.116 cvs 2623: /* control the errors */
1.4 cvs 2624:
1.130 cvs 2625: if (status == NO)
1.116 cvs 2626: /* the request invocation failed */
2627: {
2628: /* show an error message on the status bar */
2629: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
2630: TtaSetStatus (docid, 1,
2631: TtaGetMessage (AMAYA, AM_CANNOT_LOAD),
2632: urlName);
2633: if (me->reqStatus == HT_NEW)
2634: /* manually invoke the last processing that usually gets done
2635: in a succesful request */
2636: InvokeGetObjectWWW_callback (docid, urlName, outputfile,
2637: terminate_cbf, context_tcbf, HT_ERROR);
2638: /* terminate_handler wasn't called */
1.136 cvs 2639: AHTReqContext_delete (me);
1.116 cvs 2640: }
2641: else
1.136 cvs 2642: /* end treatment for SYNC requests */
1.120 cvs 2643: if ((mode & AMAYA_SYNC) || (mode & AMAYA_ISYNC))
2644: {
1.136 cvs 2645: /* wait here untilt the asynchronous request finishes */
1.130 cvs 2646: status = LoopForStop (me);
1.136 cvs 2647: /* if status returns HT_ERROR, should we invoke the callback? */
1.120 cvs 2648: if (!HTRequest_kill (me->request))
2649: AHTReqContext_delete (me);
2650: }
1.130 cvs 2651:
1.136 cvs 2652: /* an interface problem!!! */
2653: return (status == YES ? 0 : -1);
1.4 cvs 2654: }
2655:
1.5 cvs 2656: /*----------------------------------------------------------------------
1.17 cvs 2657: PutObjectWWW
2658: frontend for uploading a resource to a URL. This function downloads
2659: a file to be uploaded into memory, it then calls UploadMemWWW to
2660: finish the job.
2661:
1.5 cvs 2662: 2 upload modes are proposed:
2663: AMAYA_SYNC : blocking mode
2664: AMAYA_ASYNC : non-blocking mode
2665:
1.4 cvs 2666: When the function is called with the SYNC mode, the function will
2667: return only when the file has been uploaded.
2668: The ASYNC mode will immediately return after setting up the
2669: call. Furthermore, at the end of an upload, the ASYNC mode will
2670: call back terminate_cbf, handling it the context defined in
2671: context_tcbf.
2672:
2673: Notes:
2674: At the end of a succesful request, the urlName string contains the
2675: name of the actually uploaded URL. As a URL can change over the time,
2676: (e.g., be redirected elsewhere), it is advised that the function
2677: caller verifies the value of the urlName variable at the end of
2678: a request.
2679:
2680: Inputs:
2681: - docid Document identifier for the set of objects being
2682: retrieved.
2683: - fileName A pointer to the local file to upload
2684: - urlName The URL to be uploaded (MAX_URL_LENGTH chars length)
2685: - mode The retrieval mode.
2686: - terminate_cbf
2687: - context_icbf
2688: Callback and context for a terminate handler
2689:
2690: Outputs:
2691: - urlName The URL that was uploaded
2692:
2693: Returns:
2694: HT_ERROR
2695: HT_OK
1.5 cvs 2696: ----------------------------------------------------------------------*/
1.4 cvs 2697: #ifdef __STDC__
1.27 cvs 2698: int PutObjectWWW (int docid, char *fileName, char *urlName, int mode, PicType contentType,
1.4 cvs 2699: TTcbf * terminate_cbf, void *context_tcbf)
2700: #else
1.26 cvs 2701: int PutObjectWWW (docid, urlName, fileName, mode, contentType,
1.4 cvs 2702: ,terminate_cbf, context_tcbf)
2703: int docid;
2704: char *urlName;
2705: char *fileName;
2706: int mode;
1.27 cvs 2707: PicType contentType;
1.4 cvs 2708: TTcbf *terminate_cbf;
2709: void *context_tcbf;
2710:
1.116 cvs 2711: #endif /* __STDC__ */
1.4 cvs 2712: {
1.116 cvs 2713: AHTReqContext *me;
1.4 cvs 2714: int status;
2715: int fd;
2716: struct stat file_stat;
1.116 cvs 2717: char *fileURL;
1.168 cvs 2718: char *etag = NULL;
1.169 cvs 2719: HTParentAnchor *dest_anc_parent;
2720: char *tmp;
1.168 cvs 2721: int UsePreconditions;
1.191 cvs 2722: ThotBool lost_update_check = TRUE;
1.172 cvs 2723:
2724: /* should we protect the PUT against lost updates? */
2725: tmp = (char *) TtaGetEnvString ("ENABLE_LOST_UPDATE_CHECK");
2726: if (tmp && *tmp && strcasecmp (tmp, "yes" ))
2727: lost_update_check = FALSE;
1.168 cvs 2728:
2729: UsePreconditions = mode & AMAYA_USE_PRECONDITIONS;
1.4 cvs 2730:
1.33 cvs 2731: AmayaLastHTTPErrorMsg [0] = EOS;
2732:
1.116 cvs 2733: if (urlName == NULL || docid == 0 || fileName == NULL
2734: || !TtaFileExist (fileName))
1.4 cvs 2735: /* no file to be uploaded */
2736: return HT_ERROR;
2737:
2738: /* do we support this protocol? */
1.7 cvs 2739: if (IsValidProtocol (urlName) == NO)
2740: {
2741: /* return error */
1.77 cvs 2742: TtaSetStatus (docid, 1,
2743: TtaGetMessage (AMAYA, AM_PUT_UNSUPPORTED_PROTOCOL),
1.7 cvs 2744: urlName);
2745: return HT_ERROR;
2746: }
1.116 cvs 2747:
2748: /* verify the file's size */
2749: #ifndef _WINDOWS
1.7 cvs 2750: if ((fd = open (fileName, O_RDONLY)) == -1)
1.116 cvs 2751: #else
1.137 cvs 2752: if ((fd = _open (fileName, _O_RDONLY | _O_BINARY)) == -1)
1.116 cvs 2753: #endif /* _WINDOWS */
1.7 cvs 2754: {
2755: /* if we could not open the file, exit */
2756: /*error msg here */
2757: return (HT_ERROR);
2758: }
1.4 cvs 2759:
2760: fstat (fd, &file_stat);
1.137 cvs 2761: # ifdef _WINDOWS
2762: _close (fd);
2763: # else /* _WINDOWS */
1.116 cvs 2764: close (fd);
1.137 cvs 2765: # endif /* _WINDOWS */
1.4 cvs 2766:
1.7 cvs 2767: if (file_stat.st_size == 0)
2768: {
2769: /* file was empty */
2770: /*errmsg here */
2771: return (HT_ERROR);
2772: }
1.116 cvs 2773:
2774: /* prepare the request context */
1.4 cvs 2775: if (THD_TRACE)
1.116 cvs 2776: fprintf (stderr, "file size == %u\n", (unsigned) file_stat.st_size);
1.4 cvs 2777:
2778: me = AHTReqContext_new (docid);
1.7 cvs 2779: if (me == NULL)
2780: {
1.168 cvs 2781: /* @@ need an error message here */
1.151 cvs 2782: TtaHandlePendingEvents ();
1.7 cvs 2783: return (HT_ERROR);
2784: }
1.116 cvs 2785:
1.4 cvs 2786: me->mode = mode;
2787: me->incremental_cbf = (TIcbf *) NULL;
2788: me->context_icbf = (void *) NULL;
2789: me->terminate_cbf = terminate_cbf;
2790: me->context_tcbf = context_tcbf;
2791: me->urlName = urlName;
1.116 cvs 2792: me->block_size = file_stat.st_size;
1.17 cvs 2793: /* select the parameters that distinguish a PUT from a GET/POST */
1.4 cvs 2794: me->method = METHOD_PUT;
2795: me->output = stdout;
1.17 cvs 2796: /* we are not expecting to receive any input from the server */
2797: me->outputfile = (char *) NULL;
1.4 cvs 2798:
1.134 cvs 2799: #ifdef _WINDOWS
2800: /* libwww's HTParse function doesn't take into account the drive name;
1.168 cvs 2801: so we sidestep it */
1.134 cvs 2802: fileURL = NULL;
2803: StrAllocCopy (fileURL, "file:");
2804: StrAllocCat (fileURL, fileName);
2805: #else
1.116 cvs 2806: fileURL = HTParse (fileName, "file:/", PARSE_ALL);
1.134 cvs 2807: #endif /* _WINDOWS */
1.168 cvs 2808: me->source = HTAnchor_findAddress (fileURL);
1.116 cvs 2809: HT_FREE (fileURL);
1.168 cvs 2810: me->dest = HTAnchor_findAddress (urlName);
1.169 cvs 2811: /* we memorize the anchor's parent @ as we use it a number of times
2812: in the following lines */
2813: dest_anc_parent = HTAnchor_parent (me->dest);
1.168 cvs 2814:
1.169 cvs 2815: /*
2816: ** Set the Content-Type of the file we are uploading
2817: */
2818: /* we try to use any content-type previosuly associated
2819: with the parent. If it doesn't exist, we try to guess it
2820: from the URL */
2821: tmp = HTAtom_name (HTAnchor_format (dest_anc_parent));
2822: if (!tmp || !strcmp (tmp, "www/unknown"))
2823: {
2824: HTAnchor_setFormat (dest_anc_parent,
2825: AHTGuessAtom_for (me->urlName, contentType));
2826: tmp = HTAtom_name (HTAnchor_format (dest_anc_parent));
2827: }
2828: /* .. and we give the same type to the source anchor */
2829: /* we go thru setOutputFormat, rather than change the parent's
2830: anchor, as that's the place that libwww expects it to be */
2831:
1.170 cvs 2832: HTAnchor_setFormat (HTAnchor_parent (me->source),
1.169 cvs 2833: HTAtom_for (tmp));
2834: HTRequest_setOutputFormat (me->request,
2835: HTAtom_for (tmp));
1.134 cvs 2836: /* define other request characteristics */
1.116 cvs 2837: #ifdef _WINDOWS
1.136 cvs 2838: HTRequest_setPreemptive (me->request, NO);
1.116 cvs 2839: #else
1.134 cvs 2840: HTRequest_setPreemptive (me->request, NO);
1.116 cvs 2841: #endif /* _WINDOWS */
2842:
1.151 cvs 2843: /*
2844: ** Make sure that the first request is flushed immediately and not
2845: ** buffered in the output buffer
2846: */
2847: if (mode & AMAYA_FLUSH_REQUEST)
2848: HTRequest_setFlush(me->request, YES);
1.168 cvs 2849:
2850: /* Should we use preconditions? */
1.172 cvs 2851: if (lost_update_check)
1.168 cvs 2852: {
1.172 cvs 2853: if (UsePreconditions)
2854: etag = HTAnchor_etag (HTAnchor_parent (me->dest));
2855:
2856: if (etag)
2857: {
2858: HTRequest_setPreconditions(me->request, HT_MATCH_THIS);
2859: }
2860: else
2861: {
2862: HTRequest_setPreconditions(me->request, HT_NO_MATCH);
2863: HTRequest_addAfter(me->request, check_handler, NULL, NULL, HT_ALL,
2864: HT_FILTER_MIDDLE, YES);
1.175 cvs 2865: HTRequest_addAfter (me->request, HTAuthFilter, "http://*", NULL,
2866: HT_NO_ACCESS, HT_FILTER_MIDDLE, YES);
2867: HTRequest_addAfter (me->request, HTAuthFilter, "http://*", NULL,
2868: HT_REAUTH, HT_FILTER_MIDDLE, YES);
2869: HTRequest_addAfter (me->request, HTAuthInfoFilter, "http://*", NULL,
2870: HT_ALL, HT_FILTER_MIDDLE, YES);
2871: HTRequest_addAfter (me->request, HTUseProxyFilter, "http://*", NULL,
2872: HT_USE_PROXY, HT_FILTER_MIDDLE, YES);
1.172 cvs 2873: }
1.168 cvs 2874: }
2875: else
2876: {
1.172 cvs 2877: /* don't use preconditions */
1.168 cvs 2878: HTRequest_setPreconditions(me->request, HT_NO_MATCH);
2879: }
1.151 cvs 2880:
1.136 cvs 2881: /* don't use the cache while saving a document */
2882: HTRequest_setReloadMode (me->request, HT_CACHE_FLUSH);
1.116 cvs 2883:
1.164 cvs 2884: /* Throw away any reponse body */
2885: /*
2886: HTRequest_setOutputStream (me->request, HTBlackHole());
2887: */
2888:
1.168 cvs 2889: /* prepare the URLname that will be displayed in the status bar */
1.74 cvs 2890: ChopURL (me->status_urlName, me->urlName);
2891: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_REMOTE_SAVING),
1.168 cvs 2892: me->status_urlName);
1.114 cvs 2893:
1.164 cvs 2894: /* make the request */
1.172 cvs 2895: if (lost_update_check && (!UsePreconditions || !etag))
1.168 cvs 2896: status = HTHeadAnchor (me->dest, me->request);
2897: else
2898: status = HTPutDocumentAnchor (HTAnchor_parent (me->source), me->dest, me->request);
1.4 cvs 2899:
1.130 cvs 2900: if (status == YES && me->reqStatus != HT_ERR)
1.7 cvs 2901: {
1.168 cvs 2902: /* part of the stop button handler */
2903: if ((mode & AMAYA_SYNC) || (mode & AMAYA_ISYNC))
2904: status = LoopForStop (me);
1.15 cvs 2905: }
1.136 cvs 2906: if (!HTRequest_kill (me->request))
2907: AHTReqContext_delete (me);
1.168 cvs 2908:
1.116 cvs 2909: TtaHandlePendingEvents ();
1.90 cvs 2910:
1.130 cvs 2911: return (status == YES ? 0 : -1);
1.28 cvs 2912: }
1.4 cvs 2913:
1.5 cvs 2914: /*----------------------------------------------------------------------
1.138 cvs 2915: StopRequest
1.17 cvs 2916: stops (kills) all active requests associated with a docid
1.5 cvs 2917: ----------------------------------------------------------------------*/
1.4 cvs 2918: #ifdef __STDC__
2919: void StopRequest (int docid)
2920: #else
2921: void StopRequest (docid)
2922: int docid;
2923: #endif
2924: {
1.140 cvs 2925: if (Amaya && CanDoStop ())
1.138 cvs 2926: {
1.139 cvs 2927: #if 0 /* for later */
1.140 cvs 2928: AHTDocId_Status *docid_status;
2929: /* verify if there are any requests at all associated with docid */
1.138 cvs 2930: docid_status = (AHTDocId_Status *) GetDocIdStatus (docid,
2931: Amaya->docid_status);
2932: if (docid_status == (AHTDocId_Status *) NULL)
2933: return;
1.139 cvs 2934: #endif /* 0 */
1.138 cvs 2935: /* temporary call to stop all requests, as libwww changed its API */
2936: StopAllRequests (docid);
2937: }
2938: }
2939:
1.190 cvs 2940: /* @@@ the docid parameter isn't used... clean it up */
1.138 cvs 2941: /*----------------------------------------------------------------------
2942: StopAllRequests
2943: stops (kills) all active requests. We use the docid
2944: ----------------------------------------------------------------------*/
2945: #ifdef __STDC__
2946: void StopAllRequests (int docid)
2947: #else
1.140 cvs 2948: void StopAllRequests (docid)
1.138 cvs 2949: int docid;
2950: #endif
2951: {
1.4 cvs 2952: HTList *cur;
2953: AHTReqContext *me;
1.191 cvs 2954: static ThotBool lock_stop = 0;
2955: ThotBool async_flag;
1.116 cvs 2956:
1.138 cvs 2957: /* only do the stop if we're not being called while processing a
1.146 cvs 2958: request, and if we're not already dealing with a stop */
2959: if (Amaya && CanDoStop () && !lock_stop)
1.7 cvs 2960: {
1.100 cvs 2961: #ifdef DEBUG_LIBWWW
1.138 cvs 2962: fprintf (stderr, "StopRequest: number of Amaya requests "
2963: "before kill: %d\n", Amaya->open_requests);
1.100 cvs 2964: #endif /* DEBUG_LIBWWW */
1.150 cvs 2965: /* enter the critical section */
1.146 cvs 2966: lock_stop = TRUE;
1.164 cvs 2967: /* expire all outstanding timers */
2968: HTTimer_expireAll ();
1.160 cvs 2969: /* HTNet_killAll (); */
1.116 cvs 2970: cur = Amaya->reqlist;
2971: while ((me = (AHTReqContext *) HTList_nextObject (cur)))
2972: {
1.140 cvs 2973: if (AmayaIsAlive ())
1.160 cvs 2974: {
1.161 cvs 2975: #ifdef DEBUG_LIBWWW
1.163 cvs 2976: fprintf (stderr,"StopRequest: killing req %p, url %s, status %d\n", me, me->urlName, me->reqStatus);
1.161 cvs 2977: #endif /* DEBUG_LIBWWW */
2978:
1.165 cvs 2979: if (me->reqStatus != HT_END && me->reqStatus != HT_ABORT)
1.163 cvs 2980: {
2981: if ((me->mode & AMAYA_ASYNC)
2982: || (me->mode & AMAYA_IASYNC))
2983: async_flag = TRUE;
2984: else
2985: async_flag = FALSE;
2986:
1.165 cvs 2987: /* change the status to say that the request aborted */
2988: me->reqStatus = HT_ABORT;
2989:
1.163 cvs 2990: /* kill the request, using the appropriate function */
2991: if (me->request->net)
2992: HTNet_killPipe (me->request->net);
2993: else
2994: {
1.160 cvs 2995: if (me->terminate_cbf)
2996: (*me->terminate_cbf) (me->docid, -1, me->urlName,
2997: me->outputfile,
2998: me->content_type,
2999: me->context_tcbf);
1.164 cvs 3000:
3001: if (async_flag)
1.165 cvs 3002: /* explicitly free the request context for async
3003: requests. The sync requests context is freed by LoopForStop */
1.164 cvs 3004: AHTReqContext_delete (me);
1.160 cvs 3005: }
1.163 cvs 3006: cur = Amaya->reqlist;
3007: }
1.142 cvs 3008: #ifndef _WINDOWS
3009: #ifdef WWW_XWINDOWS
1.140 cvs 3010: /* to be on the safe side, remove all outstanding X events */
1.160 cvs 3011: else
3012: RequestKillAllXtevents (me);
1.142 cvs 3013: #endif /* WWW_XWINDOWS */
3014: #endif /* !_WINDOWS */
1.160 cvs 3015: }
1.116 cvs 3016: }
1.150 cvs 3017: /* Delete remaining channels */
3018: HTChannel_safeDeleteAll ();
3019: /* exit the critical section */
1.148 cvs 3020: lock_stop = FALSE;
1.100 cvs 3021: #ifdef DEBUG_LIBWWW
1.138 cvs 3022: fprintf (stderr, "StopRequest: number of Amaya requests "
3023: "after kill: %d\n", Amaya->open_requests);
1.100 cvs 3024: #endif /* DEBUG_LIBWWW */
1.138 cvs 3025: }
3026: } /* StopAllRequests */
1.17 cvs 3027:
3028:
1.105 cvs 3029: /*----------------------------------------------------------------------
3030: AmayaIsAlive
1.140 cvs 3031: returns the value of the AmayaAlive_flag
1.105 cvs 3032: ----------------------------------------------------------------------*/
3033: #ifdef __STDC__
1.191 cvs 3034: ThotBool AmayaIsAlive (void)
1.105 cvs 3035: #else
1.191 cvs 3036: ThotBool AmayaIsAlive ()
1.105 cvs 3037: #endif /* _STDC_ */
3038: {
1.140 cvs 3039: return AmayaAlive_flag;
3040: }
3041:
3042: /*----------------------------------------------------------------------
3043: CanDoStop
3044: returns the value of the CanDoStop flag
3045: ----------------------------------------------------------------------*/
3046: #ifdef __STDC__
1.191 cvs 3047: ThotBool CanDoStop (void)
1.140 cvs 3048: #else
1.191 cvs 3049: ThotBool CanDoStop ()
1.140 cvs 3050: #endif /* _STDC_ */
3051: {
3052: return CanDoStop_flag;
3053: }
3054:
3055: /*----------------------------------------------------------------------
3056: CanDoStop_set
3057: sets the value of the CanDoStop flag
3058: ----------------------------------------------------------------------*/
3059: #ifdef __STDC__
1.191 cvs 3060: void CanDoStop_set (ThotBool value)
1.140 cvs 3061: #else
3062: void CanDoStop (value)
1.191 cvs 3063: ThotBool value;
1.140 cvs 3064: #endif /* _STDC_ */
3065: {
3066: CanDoStop_flag = value;
1.176 cvs 3067: }
3068:
3069: #ifdef __STDC__
3070: void libwww_updateNetworkConf (int status)
3071: #else
3072: void libwww_updateNetworkConf (status)
3073: int status;
3074: #endif /*__STDC__*/
3075: {
3076: /* @@@ the docid parameter isn't used... clean it up */
3077: int docid = 1;
3078:
3079: /* first, stop all current requests, as the network
3080: may make some changes */
3081: StopAllRequests (docid);
3082:
3083: if (status & AMAYA_PROXY_RESTART)
3084: {
3085: HTProxy_deleteAll ();
3086: ProxyInit ();
3087: }
3088:
3089: if (status & AMAYA_CACHE_RESTART)
3090: {
3091: clear_cachelock ();
3092: HTCacheTerminate ();
3093: HTCacheMode_setEnabled (NO);
3094: CacheInit ();
3095: }
1.105 cvs 3096: }
1.116 cvs 3097:
1.69 cvs 3098: #endif /* AMAYA_JAVA */
1.77 cvs 3099:
1.116 cvs 3100: /*
3101: end of Module query.c
3102: */
1.140 cvs 3103:
3104:
3105:
3106:
3107:
3108:
1.17 cvs 3109:
3110:
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