Annotation of Amaya/amaya/query.c, revision 1.160
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:
1.124 cvs 22: #ifndef _WINDOWS
1.130 cvs 23: #endif /* !_WINDOWS */
1.116 cvs 24: #define AMAYA_WWW_CACHE
25:
1.128 cvs 26: #define CACHE_DIR_NAME DIR_STR"libwww-cache"
1.116 cvs 27: #define DEFAULT_CACHE_SIZE 5
1.158 cvs 28: #define DEFAULT_MAX_SOCKET 64
1.151 cvs 29: #define DEFAULT_DNS_TIMEOUT 60
30: #define DEFAULT_PERSIST_TIMEOUT 60L
31: #define DEFAULT_NET_EVENT_TIMEOUT 20000
1.116 cvs 32:
1.12 cvs 33: /* Amaya includes */
1.25 cvs 34: #define THOT_EXPORT extern
1.4 cvs 35: #include "amaya.h"
1.130 cvs 36: #include <sys/types.h>
1.70 cvs 37: #include <fcntl.h>
1.140 cvs 38: #include "HTEvtLst.h"
1.157 cvs 39: #include "HTAABrow.h"
1.7 cvs 40:
1.141 cvs 41: #if defined(__svr4__) || defined (_AIX)
1.4 cvs 42: #define CATCH_SIG
43: #endif
44:
45: /* local structures coming from libwww and which are
1.17 cvs 46: not found in any .h file
1.7 cvs 47: */
1.68 cvs 48:
1.7 cvs 49: struct _HTStream
50: {
1.15 cvs 51: const HTStreamClass *isa;
52: FILE *fp;
1.45 cvs 53: BOOL leave_open; /* Close file when TtaFreeMemory? */
1.15 cvs 54: char *end_command; /* Command to execute */
55: BOOL remove_on_close; /* Remove file? */
56: char *filename; /* Name of file */
57: HTRequest *request; /* saved for callback */
58: HTRequestCallback *callback;
1.7 cvs 59: };
60:
1.15 cvs 61:
1.7 cvs 62: struct _HTError
63: {
64: HTErrorElement element; /* Index number into HTError */
65: HTSeverity severity; /* A la VMS */
66: BOOL ignore; /* YES if msg should not go to user */
67: void *par; /* Explanation, e.g. filename */
68: int length; /* For copying by generic routine */
69: char *where; /* Which function */
70: };
71:
1.4 cvs 72: /* Type definitions and global variables etc. local to this module */
73:
1.17 cvs 74: /*----------------------------------------------------------------------*/
75:
1.4 cvs 76: /*** private variables ***/
1.17 cvs 77:
1.4 cvs 78: static HTList *converters = NULL; /* List of global converters */
1.27 cvs 79: static HTList *acceptTypes = NULL; /* List of types for the Accept header */
1.151 cvs 80: static HTList *transfer_encodings = NULL;
81: static HTList *content_encodings = NULL;
1.16 cvs 82: static int object_counter = 0; /* loaded objects counter */
1.140 cvs 83: static boolean AmayaAlive_flag; /* set to 1 if the application is active;
84: 0 if we have killed */
85: static boolean CanDoStop_flag; /* set to 1 if we can do a stop, 0
86: if we're inside a critical section */
1.128 cvs 87: #ifdef AMAYA_WWW_CACHE
1.130 cvs 88: static int fd_cachelock; /* open handle to the .lock cache file */
89: #endif /* AMAYA_WWW_CACHE */
1.4 cvs 90:
1.15 cvs 91: #include "answer_f.h"
92: #include "query_f.h"
93: #include "AHTURLTools_f.h"
94: #include "AHTBridge_f.h"
95: #include "AHTMemConv_f.h"
96: #include "AHTFWrite_f.h"
1.4 cvs 97:
1.116 cvs 98: /* prototypes */
99:
100: #ifdef __STDC__
1.128 cvs 101: static void RecCleanCache (char *dirname);
1.123 cvs 102: #ifdef _WINDOWS
1.70 cvs 103: int WIN_Activate_Request (HTRequest* , HTAlertOpcode, int, const char*, void*, HTAlertPar*);
1.116 cvs 104: #endif /* _WINDOWS */
1.70 cvs 105: #else
1.128 cvs 106: static void RecCleanCache (/* char *dirname */);
1.123 cvs 107: #ifdef _WINDOWS
1.128 cvs 108: int WIN_Activate_Request (/* HTRequest* , HTAlertOpcode, int, const char*, void*, HTAlertPar* */);
1.116 cvs 109: #endif /* _WINDOWS */
1.70 cvs 110: #endif /* __STDC__ */
1.116 cvs 111:
1.15 cvs 112:
1.130 cvs 113: #ifdef AMAYA_WWW_CACHE
114: /***************************************************************
115: lock functions, used to avoid concurrent use of the cache
116: Mostly based on W. Richard Stevens' APUE book.
117: ***************************************************************/
118: /*----------------------------------------------------------------------
119: set_cachelock
120: sets a write lock on filename.
121: Returns -1 in case of failure, otherwise, it'll open a handle on
122: filename and fd_cachelock will take its value.
123: ----------------------------------------------------------------------*/
124: #ifdef __STDC__
125: static int set_cachelock (char *filename)
126: #else
127: static int set_cachelock (filename)
128: char *filename;
129: #endif /* __STDC__ */
130: {
131: #ifdef _WINDOWS
132: return 0;
133: #else
134: int status;
135: struct flock lock;
136:
137: lock.l_type = F_WRLCK;
138: lock.l_start = 0;
139: lock.l_whence = SEEK_SET;
140: lock.l_len = 0;
141:
142: fd_cachelock = open (filename, O_WRONLY);
143:
144: if (fd_cachelock == -1)
145: status = -1;
146: else
147: status = fcntl(fd_cachelock, F_SETLK, &lock);
148:
149: if (status == -1)
150: fd_cachelock = 0;
151:
152: return (status);
153: #endif /* _WINDOWS */
154: }
155:
156: /*----------------------------------------------------------------------
157: clear_cachelock
158: remove the write lock set on a filename.
159: It'll close the fd handle on filename and reset *fd to 0.
160: ----------------------------------------------------------------------*/
161: #ifdef __STDC__
162: static int clear_cachelock (void)
163: #else
164: static int clear_cachelock ()
165: int *fd;
166: #endif /* __STDC__ */
167: {
168: #ifdef _WINDOWS
169: return 0;
170: #else
171: int status;
172: struct flock lock;
173:
174: if (fd_cachelock)
175: return (-1);
176:
177: lock.l_type = F_UNLCK;
178: lock.l_start = 0;
179: lock.l_whence = SEEK_SET;
180: lock.l_len = 0;
181:
182: status = fcntl(fd_cachelock, F_SETLK, &lock);
183: close (fd_cachelock);
184: fd_cachelock = 0;
185:
186: return (status);
187: #endif /* _WINDOWS */
188: }
189:
190: /*----------------------------------------------------------------------
191: test_cachelock
192: returns 0 if a fd is not locked by other process, otherwise
193: returns the pid of the process who has the lock
194: ----------------------------------------------------------------------*/
195: #ifdef __STDC__
196: static int test_cachelock (char *filename)
197: #else
198: static int test_cachelock (filename)
199: char *filename;
200: #endif __STDC__
201: {
202: #ifdef _WINDOWS
203: int fd;
1.137 cvs 204: fd = _open (filename, _O_WRONLY | _O_BINARY);
1.130 cvs 205: if (fd != -1)
206: {
1.137 cvs 207: _close (fd);
1.130 cvs 208: return 0;
209: }
210: else
211: return -1;
212: #else
213: struct flock lock;
214: int fd, status;
215:
216: lock.l_type = F_WRLCK;
217: lock.l_start = 0;
218: lock.l_whence = SEEK_SET;
219: lock.l_len = 0;
220:
221: fd = open (filename, O_WRONLY);
222:
223: if (fd < 0)
224: return (-1);
225: /* is this file locked ? */
226: status = fcntl (fd, F_GETLK, &lock);
227: close (fd);
228:
229: if (status < 0)
230: return (-1);
231:
232: if (lock.l_type == F_UNLCK)
233: return (0); /* false, region is not locked by another proc */
234: return (lock.l_pid); /* true, return pid of lock owner */
235: #endif /* _WINDOWS */
236: }
237:
238: #endif /* AMAYA_WWW_CACHE */
239:
1.15 cvs 240: /*----------------------------------------------------------------------
1.17 cvs 241: GetDocIdStatus
242: gets the status associated to a docid
1.15 cvs 243: ----------------------------------------------------------------------*/
244: #ifdef __STDC__
245: AHTDocId_Status *GetDocIdStatus (int docid, HTList * documents)
246: #else
247: AHTDocID_Status *GetDocIdStatus (docid, documents)
248: int docid;
249: HTList *documents;
250:
251: #endif
252: {
253: AHTDocId_Status *me;
254: HTList *cur;
255:
256: if (documents)
257: {
258: cur = documents;
259:
260: while ((me = (AHTDocId_Status *) HTList_nextObject (cur)))
261: {
262: if (me->docid == docid)
263: return (me);
1.18 cvs 264: }
265: }
1.15 cvs 266: return (AHTDocId_Status *) NULL;
267:
268: }
269:
1.5 cvs 270: /*----------------------------------------------------------------------
1.27 cvs 271: AHTGuessAtom_for
272: Converts an Amaya type descriptor into the equivalent MIME type.
273: ----------------------------------------------------------------------*/
274: #ifdef __STDC__
275: static HTAtom *AHTGuessAtom_for (char *urlName, PicType contentType)
276: #else
277: static HTAtom *AHTGuessAtom_for (urlName, contentType)
278: char *urlName;
279: PicType contentType;
280: #endif
281: {
282: HTAtom *atom;
283: char *filename;
1.160 ! cvs 284: HTEncoding enc = NULL;
! 285: HTEncoding cte = NULL;
! 286: HTLanguage lang = NULL;
1.50 cvs 287: double quality = 1.0;
1.27 cvs 288:
289: switch (contentType)
290: {
291: case xbm_type:
292: atom = HTAtom_for("image/xbm");
293: break;
294: case eps_type:
1.35 cvs 295: atom = HTAtom_for("application/postscript");
1.27 cvs 296: break;
297: case xpm_type:
298: atom = HTAtom_for("image/xpm");
299: break;
300: case gif_type:
301: atom = HTAtom_for("image/gif");
302: break;
303: case jpeg_type:
304: atom = HTAtom_for("image/jpeg");
305: break;
306: case png_type:
307: atom = HTAtom_for("image/png");
308: break;
309: case unknown_type:
310: default:
311: /*
312: ** Amaya could not detect the type, so
313: ** we try to use the filename's suffix to do so.
314: */
1.45 cvs 315: filename = AmayaParseUrl (urlName, "", AMAYA_PARSE_PATH | AMAYA_PARSE_PUNCTUATION);
1.27 cvs 316: HTBind_getFormat (filename, &atom, &enc, &cte, &lang, &quality);
1.45 cvs 317: TtaFreeMemory (filename);
1.27 cvs 318: if (atom == WWW_UNKNOWN)
319: /*
320: ** we could not identify the suffix, so we assign it
321: ** a default type
322: */
323: atom = HTAtom_for ("text/html");
324: break;
325: }
326:
327: return atom;
328: }
329:
330: /*----------------------------------------------------------------------
1.17 cvs 331: AHTReqContext_new
332: create a new Amaya Context Object and update the global Amaya
333: request status.
1.5 cvs 334: ----------------------------------------------------------------------*/
1.4 cvs 335: #ifdef __STDC__
336: static AHTReqContext *AHTReqContext_new (int docid)
337: #else
338: static AHTReqContext *AHTReqContext_new (docid)
339: int docid;
340:
341: #endif
342: {
343: AHTReqContext *me;
344: AHTDocId_Status *docid_status;
345:
346: if ((me = (AHTReqContext *) TtaGetMemory (sizeof (AHTReqContext))) == NULL)
1.116 cvs 347: outofmem (__FILE__, "AHTReqContext_new");
348:
349: /* clear the structure */
350: memset ((void *) me, 0, sizeof (AHTReqContext));
1.4 cvs 351:
1.81 cvs 352: /* Bind the Context object together with the Request Object */
353: me->request = HTRequest_new ();
354:
1.80 cvs 355: /* clean the associated file structure) */
1.79 cvs 356: HTRequest_setOutputStream (me->request, NULL);
1.81 cvs 357:
1.4 cvs 358: /* Initialize the other members of the structure */
1.17 cvs 359: me->reqStatus = HT_NEW; /* initial status of a request */
1.4 cvs 360: me->docid = docid;
361: HTRequest_setMethod (me->request, METHOD_GET);
362: HTRequest_setOutputFormat (me->request, WWW_SOURCE);
363: HTRequest_setContext (me->request, me);
1.116 cvs 364:
1.36 cvs 365: /* experimental */
366: me->read_sock = INVSOC;
367: me->write_sock = INVSOC;
368: me->except_sock = INVSOC;
1.4 cvs 369:
370: /* Update the global context */
371: HTList_appendObject (Amaya->reqlist, (void *) me);
372:
373: docid_status = GetDocIdStatus (docid, Amaya->docid_status);
374:
1.7 cvs 375: if (docid_status == NULL)
376: {
1.116 cvs 377: docid_status = (AHTDocId_Status *)
378: TtaGetMemory (sizeof (AHTDocId_Status));
1.7 cvs 379: docid_status->docid = docid;
380: docid_status->counter = 1;
381: HTList_addObject (Amaya->docid_status, (void *) docid_status);
382: }
383: else
1.4 cvs 384: docid_status->counter++;
385:
386: Amaya->open_requests++;
387:
1.74 cvs 388: #ifdef DEBUG_LIBWWW
389: fprintf (stderr, "AHTReqContext_new: Created object %p\n", me);
390: #endif
1.116 cvs 391:
1.4 cvs 392: return me;
393: }
394:
1.5 cvs 395: /*----------------------------------------------------------------------
1.17 cvs 396: AHTReqContext_delete
397: Delete an Amaya Context Object and update the global Amaya request
398: status.
1.5 cvs 399: ----------------------------------------------------------------------*/
1.4 cvs 400:
401: #ifdef __STDC__
1.15 cvs 402: boolean AHTReqContext_delete (AHTReqContext * me)
1.4 cvs 403: #else
1.15 cvs 404: boolean AHTReqContext_delete (me)
1.4 cvs 405: AHTReqContext *me;
406:
407: #endif
408: {
409: AHTDocId_Status *docid_status;
410:
1.7 cvs 411: if (me)
412: {
1.4 cvs 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: }
431: if (me->method != METHOD_PUT && HTRequest_outputStream (me->request))
1.154 cvs 432: AHTFWriter_FREE (HTRequest_outputStream (me->request));
1.138 cvs 433:
434: HTRequest_delete (me->request);
435:
436: if (me->output && me->output != stdout)
437: {
1.85 cvs 438: #ifdef DEBUG_LIBWWW
1.138 cvs 439: fprintf (stderr, "AHTReqContext_delete: URL is %s, closing "
440: "FILE %p\n", me->urlName, me->output);
1.85 cvs 441: #endif
1.138 cvs 442: fclose (me->output);
443: me->output = NULL;
444: }
1.79 cvs 445:
1.138 cvs 446: if (me->error_stream != (char *) NULL)
447: HT_FREE (me->error_stream);
448: #ifndef _WINDOWS
449: #ifdef WWW_XWINDOWS
450: if (me->read_xtinput_id || me->write_xtinput_id ||
451: me->except_xtinput_id)
452: RequestKillAllXtevents(me);
453: #endif /* WWW_XWINDOWS */
454: #endif /* !_WINDOWS */
455:
456: if (me->reqStatus == HT_ABORT)
457: {
458: if (me->outputfile && me->outputfile[0] != EOS)
459: {
460: TtaFileUnlink (me->outputfile);
461: me->outputfile[0] = EOS;
462: }
463: }
464:
465: if ((me->mode & AMAYA_ASYNC) || (me->mode & AMAYA_IASYNC))
466: /* for the ASYNC mode, free the memory we allocated in GetObjectWWW
467: or in PutObjectWWW */
468: {
469: if (me->urlName)
470: TtaFreeMemory (me->urlName);
471: if (me->outputfile)
472: TtaFreeMemory (me->outputfile);
473: }
474:
475: if (me->content_type)
476: TtaFreeMemory (me->content_type);
477:
478: if (me->formdata)
479: HTAssocList_delete (me->formdata);
480:
481: /* to trace bugs */
482: memset ((void *) me, 0, sizeof (AHTReqContext));
483:
484: TtaFreeMemory ((void *) me);
485:
486: Amaya->open_requests--;
487:
488: return TRUE;
1.7 cvs 489: }
1.15 cvs 490: return FALSE;
1.4 cvs 491: }
492:
493:
1.15 cvs 494: /*----------------------------------------------------------------------
1.17 cvs 495: Thread_deleteAll
496: this function deletes the whole list of active threads.
1.5 cvs 497: ----------------------------------------------------------------------*/
1.4 cvs 498: #ifdef __STDC__
499: static void Thread_deleteAll (void)
500: #else
501: static void Thread_deleteAll ()
502: #endif
503: {
1.21 cvs 504: HTList *cur;
505: AHTReqContext *me;
506: AHTDocId_Status *docid_status;
507:
1.74 cvs 508: if (Amaya && Amaya->reqlist)
509: {
510: if (Amaya->open_requests > 0)
511: #ifdef DEBUG_LIBWWW
512: fprintf (stderr, "Thread_deleteAll: Killing %d outstanding "
513: "requests\n", Amaya->open_requests);
514: #endif
515: {
516: cur = Amaya->reqlist;
517:
518: /* erase the requests */
519: while ((me = (AHTReqContext *) HTList_removeLastObject (cur)))
520: {
521: if (me->request)
522: {
1.142 cvs 523: #ifndef _WINDOWS
524: #ifdef WWW_XWINDOWS
1.74 cvs 525: RequestKillAllXtevents (me);
1.142 cvs 526: #endif /* WWW_XWINDOWS */
1.138 cvs 527: #endif /* !_WINDOWS */
1.140 cvs 528: if (!HTRequest_kill (me->request))
529: AHTReqContext_delete (me);
1.74 cvs 530: }
531: } /* while */
532:
533: /* erase the docid_status entities */
534: while ((docid_status = (AHTDocId_Status *) HTList_removeLastObject ((void *) Amaya->docid_status)))
535: TtaFreeMemory ((void *) docid_status);
536:
537: } /* if */
1.84 cvs 538:
1.74 cvs 539: }
1.4 cvs 540: }
541:
1.5 cvs 542: /*----------------------------------------------------------------------
1.83 cvs 543: AHTOpen_file
544: ----------------------------------------------------------------------*/
545: #ifdef __STDC__
1.85 cvs 546: int AHTOpen_file (HTRequest * request)
1.83 cvs 547: #else
1.85 cvs 548: int AHTOpen_file (request)
1.83 cvs 549: HTRequest *request;
550:
551: #endif /* __STDC__ */
552: {
553: AHTReqContext *me; /* current request */
554:
555: me = HTRequest_context (request);
556:
1.93 cvs 557: if (!me)
558: return HT_ERROR;
559:
1.83 cvs 560: #ifdef DEBUG_LIBWWW
1.116 cvs 561: fprintf(stderr, "AHTOpen_file: start for object : %p\n", me);
1.85 cvs 562: #endif /* DEBUG_LIBWWW */
563:
564: if (me->reqStatus == HT_ABORT)
565: {
566: #ifdef DEBUG_LIBWWW
567: fprintf(stderr, "AHTOpen_file: caught an abort request, skipping it\n");
1.83 cvs 568: #endif /* DEBUG_LIBWWW */
569:
1.85 cvs 570: return HT_OK;
571: }
572:
1.136 cvs 573: if (me->method == METHOD_PUT)
574: {
575: me->reqStatus = HT_WAITING;
576: return HT_OK;
577: }
578:
1.85 cvs 579: if (HTRequest_outputStream (me->request))
580: {
581:
582: #ifdef DEBUG_LIBWWW
583: fprintf(stderr, "AHTOpen_file: output stream already existed for url %s\n", me->urlName);
584: #endif /* DEBUG_LIBWWW */
585: return HT_OK;
586: }
587:
588: #ifdef DEBUG_LIBWWW
589: fprintf(stderr, "AHTOpen_file: opening output stream for url %s\n", me->urlName);
590: #endif /* DEBUG_LIBWWW */
591:
1.83 cvs 592: if (!(me->output) &&
593: (me->output != stdout) &&
594: #ifndef _WINDOWS
595: (me->output = fopen (me->outputfile, "w")) == NULL)
596: {
1.116 cvs 597: #else /* !_WINDOWS */
1.83 cvs 598: (me->output = fopen (me->outputfile, "wb")) == NULL)
599: {
600: #endif /* !_WINDOWS */
601:
1.131 cvs 602: me->outputfile[0] = EOS; /* file could not be opened */
1.85 cvs 603: #ifdef DEBUG_LIBWWW
604: fprintf(stderr, "AHTOpen_file: couldn't open output stream for url %s\n", me->urlName);
605: #endif
1.83 cvs 606: TtaSetStatus (me->docid, 1,
607: TtaGetMessage (AMAYA, AM_CANNOT_CREATE_FILE),
608: me->outputfile);
609: me->reqStatus = HT_ERR;
610: return (HT_ERROR);
611: }
612:
613: HTRequest_setOutputStream (me->request,
614: AHTFWriter_new (me->request,
615: me->output, YES));
616: me->reqStatus = HT_WAITING;
617:
618: return HT_OK;
619: }
620:
621: /*----------------------------------------------------------------------
1.17 cvs 622: redirection_handler
623: this function is registered to handle permanent and temporary
624: redirections.
625: ----------------------------------------------------------------------*/
1.4 cvs 626: #ifdef __STDC__
1.7 cvs 627: static int redirection_handler (HTRequest * request, HTResponse * response, void *param, int status)
1.4 cvs 628: #else
629: static int redirection_handler (request, context, status)
630: HTRequest *request;
631: HTResponse *response;
632: void *param;
633: int status;
634:
635: #endif
636: {
637:
638: HTAnchor *new_anchor = HTResponse_redirection (response);
1.7 cvs 639: AHTReqContext *me = HTRequest_context (request);
1.4 cvs 640: HTMethod method = HTRequest_method (request);
1.98 cvs 641: char *ref;
642: char *tmp;
1.4 cvs 643:
1.153 cvs 644: if (!me)
645: /* if the redirect doesn't come from Amaya, we call libwww's standard
646: redirect filter */
647: return (HTRedirectFilter (request, response, param, status));
648:
1.7 cvs 649: if (!new_anchor)
650: {
651: if (PROT_TRACE)
652: HTTrace ("Redirection. No destination\n");
653: return HT_OK;
654: }
1.4 cvs 655:
656: /*
657: ** Only do redirect on GET and HEAD
658: */
1.7 cvs 659: if (!HTMethod_isSafe (method))
660: {
1.130 cvs 661: /*
662: ** If we got a 303 See Other then change the method to GET.
663: ** Otherwise ask the user whether we should continue.
664: */
665: if (status == HT_SEE_OTHER)
666: {
667: if (PROT_TRACE)
668: HTTrace("Redirection. Changing method from %s to GET\n",
669: HTMethod_name(method));
670: HTRequest_setMethod(request, METHOD_GET);
671: }
672: else
673: {
674: HTAlertCallback *prompt = HTAlert_find (HT_A_CONFIRM);
675: if (prompt)
676: {
677: if ((*prompt) (request, HT_A_CONFIRM, HT_MSG_REDIRECTION,
678: NULL, NULL, NULL) != YES)
1.153 cvs 679: return HT_OK;
1.130 cvs 680: }
681: }
1.7 cvs 682: }
1.4 cvs 683: /*
684: ** Start new request with the redirect anchor found in the headers.
685: ** Note that we reuse the same request object which means that we must
686: ** keep this around until the redirected request has terminated. It also
687: ** allows us in an easy way to keep track of the number of redirections
688: ** so that we can detect endless loops.
689: */
1.17 cvs 690:
1.7 cvs 691: if (HTRequest_doRetry (request))
692: {
693: /* do we need to normalize the URL? */
694: if (strncmp (new_anchor->parent->address, "http:", 5))
695: {
696: /* Yes, so we use the pre-redirection anchor as a base name */
1.74 cvs 697: ref = AmayaParseUrl (new_anchor->parent->address,
698: me->urlName, AMAYA_PARSE_ALL);
1.7 cvs 699: if (ref)
700: {
1.98 cvs 701: HT_FREE (new_anchor->parent->address);
702: tmp = NULL;
703: HTSACopy (&tmp, ref);
704: new_anchor->parent->address = tmp;
705: TtaFreeMemory (ref);
1.7 cvs 706: }
1.98 cvs 707: else
708: return HT_ERROR; /* We can't redirect anymore */
1.7 cvs 709: }
710:
711: /* update the current file name */
1.130 cvs 712: if ((me->mode & AMAYA_ASYNC) || (me->mode & AMAYA_IASYNC))
1.7 cvs 713: {
1.130 cvs 714: TtaFreeMemory (me->urlName);
715: me->urlName = TtaStrdup (new_anchor->parent->address);
1.7 cvs 716: }
717: else
1.130 cvs 718: /* it's a SYNC mode, so we should keep the urlName */
719: {
720: strncpy (me->urlName, new_anchor->parent->address,
721: MAX_LENGTH - 1);
722: me->urlName[MAX_LENGTH - 1] = EOS;
723: }
1.7 cvs 724:
1.38 cvs 725: ChopURL (me->status_urlName, me->urlName);
1.116 cvs 726:
1.7 cvs 727: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_RED_FETCHING),
1.38 cvs 728: me->status_urlName);
1.7 cvs 729:
730: /* Start request with new credentials */
1.79 cvs 731: if (HTRequest_outputStream (me->request) != NULL) {
1.154 cvs 732: AHTFWriter_FREE (HTRequest_outputStream (me->request));
1.85 cvs 733: if (me->output != stdout) { /* Are we writing to a file? */
1.74 cvs 734: #ifdef DEBUG_LIBWWW
1.130 cvs 735: fprintf (stderr, "redirection_handler: New URL is %s, closing "
736: "FILE %p\n", me->urlName, me->output);
1.74 cvs 737: #endif
1.79 cvs 738: fclose (me->output);
739: me->output = NULL;
740: }
1.64 cvs 741: }
1.68 cvs 742:
1.105 cvs 743: /* reset the status */
1.116 cvs 744: me->reqStatus = HT_NEW;
1.105 cvs 745: /* clear the errors */
1.116 cvs 746: HTError_deleteAll (HTRequest_error (request));
1.105 cvs 747: HTRequest_setError (request, NULL);
1.116 cvs 748:
1.130 cvs 749: if (me->method == METHOD_PUT
750: || me->method == METHOD_POST) /* PUT, POST etc. */
1.74 cvs 751: status = HTLoadAbsolute (me->urlName, request);
1.7 cvs 752: else
1.74 cvs 753: HTLoadAnchor (new_anchor, request);
1.7 cvs 754: }
755: else
1.68 cvs 756: {
1.74 cvs 757: HTRequest_addError (request, ERR_FATAL, NO, HTERR_MAX_REDIRECT,
758: NULL, 0, "HTRedirectFilter");
759: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_REDIRECTIONS_LIMIT),
760: NULL);
761: if (me->error_html)
762: DocNetworkStatus[me->docid] |= AMAYA_NET_ERROR;
763: /* so that we can show the error message */
1.68 cvs 764: }
765:
1.4 cvs 766: /*
1.74 cvs 767: ** By returning HT_ERROR we make sure that this is the last handler to be
768: ** called. We do this as we don't want any other filter to delete the
769: ** request object now when we have just started a new one ourselves
770: */
1.4 cvs 771: return HT_ERROR;
772: }
773:
1.151 cvs 774: #ifdef AMAYA_LOST_UPDATE
775: /*----------------------------------------------------------------------
776: precondition_handler
777: 412 "Precondition failed" handler
778: ----------------------------------------------------------------------*/
779: #if __STDC__
780: static int precondition_handler (HTRequest * request, HTResponse * response, void *context, int status)
781: #else
782: static int precondition_handler (request, response, context, status)
783: HTRequest *request;
784: HTResponse *response;
785: void *context;
786: int status;
787: #endif /* __STDC__ */
788: {
789: AHTReqContext *me = (AHTReqContext *) HTRequest_context (request);
790: int conflict = 0;
791:
792: if (!me)
793: return HT_OK; /* not an Amaya request */
794:
795: if (me->output && me->output != stdout)
796: {
797: fclose (me->output);
798: me->output = NULL;
799: }
800:
801: if (conflict == 1)
802: {
803: /* start a new PUT request without preconditions */
804: /* @@@ put some form here */
805: /* Stop here */
806: return HT_ERROR;
807: }
808: else
809: if (conflict == 2)
810: {
811: /* Stop here */
812: return HT_ERROR;
813: }
814: else
815: return HT_OK; /* Just finish the request */
816: }
817:
818: /*
819: ** Request HEAD checker filter
820: */
821: PRIVATE int check_handler (HTRequest * request, HTResponse * response,
822: void * param, int status)
823: {
824: int conflict = 0;
825: /***
826: CRequest * req = (CRequest *) HTRequest_context(request);
827: CVersionConflict conflict;
828:
829: req->Cleanup();
830: ***/
831: /*
832: ** If head request showed that the document doesn't exist
833: ** then just go ahead and PUT it. Otherwise ask for help
834: */
835: if (status==HT_INTERRUPTED || status==HT_TIMEOUT)
836: {
837: return HT_ERROR;
838: }
839: else
840: if (abs(status)/100!=2)
841: {
842: /* Start a new PUT request without preconditions */
843: /***
844: HTAnchor * source = req->Source();
845: HTAnchor * dest = req->Destination();
846: CRequest * new_req = new CRequest(req->m_pDoc);
847: delete req;
848: new_req->PutDocument(source, dest, FALSE);
849: ***/
850: }
851: else
852: if (conflict)
853: {
854: if (conflict == 1)
855: {
856: /***
857: HTAnchor * source = req->Source();
858: HTAnchor * dest = req->Destination();
859: CRequest * new_req = new CRequest(req->m_pDoc);
860: delete req;
861: ***/
862: /* Start a new PUT request without preconditions */
863: /***
864: new_req->PutDocument(source, dest, FALSE);
865: ***/
866: }
867: else
868: if (conflict == 2)
869: {
870: /***
871: HTAnchor * address = req->Source();
872: CRequest * new_req = new CRequest(req->m_pDoc);
873: delete req;
874: ***/
875: /* Start a new GET request */
876: /***
877: new_req->GetDocument(address, 2);
878: ***/
879: }
880: }
881: return HT_ERROR;
882: }
883: #endif /* AMAYA_LOST_UPDATE */
884:
1.5 cvs 885: /*----------------------------------------------------------------------
1.17 cvs 886: terminate_handler
887: this function is registered to handle the result of the request
1.5 cvs 888: ----------------------------------------------------------------------*/
1.4 cvs 889: #if __STDC__
1.7 cvs 890: static int terminate_handler (HTRequest * request, HTResponse * response, void *context, int status)
1.4 cvs 891: #else
892: static int terminate_handler (request, response, context, status)
893: HTRequest *request;
894: HTResponse *response;
895: void *context;
896: int status;
1.123 cvs 897: #endif /* __STDC__ */
1.4 cvs 898: {
1.116 cvs 899: AHTReqContext *me = (AHTReqContext *) HTRequest_context (request);
900: boolean error_flag;
901: char *content_type;
902:
903: if (!me)
1.153 cvs 904: return HT_ERROR; /* not an Amaya request */
1.116 cvs 905:
906: if (me->reqStatus == HT_END)
907: /* we have already processed this request! */
908: return HT_OK;
909:
910: /* if Amaya was killed, treat with this request as if it were
911: issued by a Stop button event */
912:
913: if (!AmayaIsAlive ())
1.80 cvs 914: me->reqStatus = HT_ABORT;
1.74 cvs 915:
1.77 cvs 916: if (status == HT_LOADED ||
917: status == HT_CREATED ||
1.79 cvs 918: status == HT_NO_DATA ||
1.160 ! cvs 919: /* kludge for work around libwww problem */
! 920: (status == HT_INTERRUPTED && me->method == METHOD_PUT) ||
1.116 cvs 921: #ifdef AMAYA_WWW_CACHE
922: /* what status to use to know we're downloading from a cache? */
923: status == HT_NOT_MODIFIED ||
924: #endif /* AMAYA_WWW_CACHE */
1.79 cvs 925: me->reqStatus == HT_ABORT)
1.74 cvs 926: error_flag = FALSE;
1.13 cvs 927: else
1.74 cvs 928: error_flag = TRUE;
1.130 cvs 929:
1.4 cvs 930: /* output any errors from the server */
1.130 cvs 931:
1.77 cvs 932: /*
1.74 cvs 933: ** me->output = output file which will receive an html file
934: ** me->error_html = yes, output HTML errors in the screen
935: ** request->error_stack == if there are any errors, they will be here
936: ** me->error_stream_size If it's != 0 means an error message has already
937: ** been written to the stack
938: */
939:
1.4 cvs 940: /* First, we verify if there are any errors and if they are not
1.17 cvs 941: ** yet written to the error stack. If no, then let's try to write them
942: ** ourselves
943: */
1.74 cvs 944:
945: #ifdef DEBUG_LIBWWW
946: fprintf (stderr, "terminate_handler: URL is "
947: "%s, closing FILE %p status is %d\n", me->urlName, me->output,
948: status);
1.69 cvs 949: #endif
1.74 cvs 950:
1.69 cvs 951: if (me->output && me->output != stdout)
952: {
1.74 cvs 953: /* we are writing to a file */
954: if (me->reqStatus != HT_ABORT)
955: { /* if the request was not aborted and */
1.80 cvs 956: if (error_flag &&
957: me->error_html == TRUE)
958: /* there were some errors and we want to print them */
959: {
960: if (me->error_stream_size == 0)/* and the stream is empty */
961: AHTError_MemPrint (request); /* copy errors from
1.74 cvs 962: **the error stack
1.77 cvs 963: ** into the error stream */
1.80 cvs 964: if (me->error_stream)
965: { /* if the stream is non-empty */
966: fprintf (me->output, me->error_stream);/* output the errors */
1.85 cvs 967: /* Clear the error context, so that we can deal with
968: this answer as if it were a normal reply */
969: HTError_deleteAll( HTRequest_error (request));
970: HTRequest_setError (request, NULL);
971: error_flag = 0;
1.74 cvs 972: }
973: } /* if error_stack */
1.85 cvs 974: }
975:
976: /* if != HT_ABORT */
977:
978: #ifdef DEBUG_LIBWWW
979: fprintf (stderr, "terminate_handler: URL is %s, closing "
980: "FILE %p\n", me->urlName, me->output);
981: #endif
1.74 cvs 982: fclose (me->output);
983: me->output = NULL;
1.69 cvs 984: }
1.80 cvs 985:
986: if (error_flag)
987: me->reqStatus = HT_ERR;
988: else if (me->reqStatus != HT_ABORT)
989: me->reqStatus = HT_END;
1.151 cvs 990:
1.116 cvs 991: /* copy the content_type */
1.151 cvs 992: if (!me->content_type)
1.88 cvs 993: {
1.154 cvs 994: /* @@ should get this info from response */
995: if (request->anchor && request->anchor->content_type)
996: content_type = request->anchor->content_type->name;
997: else
998: content_type = "www/unknown";
999:
1.151 cvs 1000: if (content_type && content_type [0] != EOS)
1001: {
1002: /* libwww gives www/unknown when it gets an error. As this is
1003: an HTML test, we force the type to text/html */
1004: if (!strcmp (content_type, "www/unknown"))
1005: me->content_type = TtaStrdup ("text/html");
1006: else
1007: me->content_type = TtaStrdup (content_type);
1008:
1009: /* Content-Type can be specified by an httpd server's admin.
1010: To be on the safe side, we normalize its case */
1011: ConvertToLowerCase (me->content_type);
1012:
1.88 cvs 1013: #ifdef DEBUG_LIBWWW
1.151 cvs 1014: fprintf (stderr, "content type is: %s\n", me->content_type);
1.88 cvs 1015: #endif /* DEBUG_LIBWWW */
1.151 cvs 1016: }
1017: }
1.114 cvs 1018:
1.115 cvs 1019: /* to avoid a hangup while downloading css files */
1.140 cvs 1020: if (AmayaAlive_flag && (me->mode & AMAYA_LOAD_CSS))
1.116 cvs 1021: TtaSetStatus (me->docid, 1,
1022: TtaGetMessage (AMAYA, AM_ELEMENT_LOADED),
1023: me->status_urlName);
1024:
1025: /* don't remove or Xt will hang up during the PUT */
1026: if (AmayaIsAlive () && ((me->method == METHOD_POST) ||
1027: (me->method == METHOD_PUT)))
1.7 cvs 1028: {
1.80 cvs 1029: PrintTerminateStatus (me, status);
1030: }
1.114 cvs 1031:
1.111 cvs 1032: ProcessTerminateRequest (request, response, context, status);
1.116 cvs 1033:
1.151 cvs 1034: /* stop here */
1.150 cvs 1035: return HT_ERROR;
1.4 cvs 1036: }
1037:
1.5 cvs 1038: /*----------------------------------------------------------------------
1.17 cvs 1039: AHTLoadTerminate_handler
1.74 cvs 1040: this is an application "AFTER" Callback. It's called by the library
1041: when a request has ended, so that we can setup the correct status.
1.5 cvs 1042: ----------------------------------------------------------------------*/
1.4 cvs 1043:
1044: #ifdef __STDC__
1.111 cvs 1045: int AHTLoadTerminate_handler (HTRequest * request, HTResponse * response, void *param, int status)
1.4 cvs 1046: #else
1.111 cvs 1047: int AHTLoadTerminate_handler (request, response, param, status)
1.4 cvs 1048: HTRequest *request;
1049: HTResponse *response;
1050: void *param;
1051: int status;
1.69 cvs 1052:
1.4 cvs 1053: #endif
1054: {
1.116 cvs 1055:
1056: /** @@@@ use this with printstatus ?? */
1057:
1.4 cvs 1058: AHTReqContext *me = HTRequest_context (request);
1059: HTAlertCallback *cbf;
1060: AHTDocId_Status *docid_status;
1061:
1.7 cvs 1062: switch (status)
1.116 cvs 1063: {
1064: case HT_LOADED:
1065: if (PROT_TRACE)
1066: HTTrace ("Load End.... OK: `%s\' has been accessed\n",
1067: me->status_urlName);
1.4 cvs 1068:
1.116 cvs 1069: docid_status = GetDocIdStatus (me->docid,
1070: Amaya->docid_status);
1.7 cvs 1071:
1.116 cvs 1072: if (docid_status != NULL && docid_status->counter > 1)
1073: TtaSetStatus (me->docid, 1,
1074: TtaGetMessage (AMAYA, AM_ELEMENT_LOADED),
1.74 cvs 1075: me->status_urlName);
1.7 cvs 1076: break;
1.116 cvs 1077:
1078: case HT_NO_DATA:
1079: if (PROT_TRACE)
1080: HTTrace ("Load End.... OK BUT NO DATA: `%s\'\n",
1081: me->status_urlName);
1082: TtaSetStatus (me->docid, 1,
1083: TtaGetMessage (AMAYA, AM_LOADED_NO_DATA),
1084: me->status_urlName);
1085: break;
1086:
1087: case HT_INTERRUPTED:
1088: if (PROT_TRACE)
1089: HTTrace ("Load End.... INTERRUPTED: `%s\'\n",
1090: me->status_urlName);
1091: TtaSetStatus (me->docid, 1,
1092: TtaGetMessage (AMAYA, AM_LOAD_ABORT),
1093: NULL);
1094: break;
1.7 cvs 1095:
1.116 cvs 1096: case HT_RETRY:
1097: if (PROT_TRACE)
1098: HTTrace ("Load End.... NOT AVAILABLE, RETRY AT %ld\n",
1099: HTResponse_retryTime (response));
1100: TtaSetStatus (me->docid, 1,
1101: TtaGetMessage (AMAYA, AM_NOT_AVAILABLE_RETRY),
1102: me->status_urlName);
1103: break;
1.7 cvs 1104:
1.116 cvs 1105: case HT_ERROR:
1106: cbf = HTAlert_find (HT_A_MESSAGE);
1107: if (cbf)
1108: (*cbf) (request, HT_A_MESSAGE, HT_MSG_NULL, NULL,
1109: HTRequest_error (request), NULL);
1110: break;
1111:
1112: if (PROT_TRACE)
1113: HTTrace ("Load End.... ERROR: Can't access `%s\'\n",
1114: me->status_urlName ? me->status_urlName :"<UNKNOWN>");
1115: TtaSetStatus (me->docid, 1,
1116: TtaGetMessage (AMAYA, AM_CANNOT_LOAD),
1117: me->status_urlName ? me->status_urlName : "<UNKNOWN>");
1118: break;
1119: default:
1120: if (PROT_TRACE)
1121: HTTrace ("Load End.... UNKNOWN RETURN CODE %d\n", status);
1122: break;
1123: }
1124:
1125: return HT_OK;
1126: }
1.7 cvs 1127:
1.116 cvs 1128: #ifdef DEBUG_LIBWWW
1129: static int LineTrace (const char * fmt, va_list pArgs)
1130: {
1131: return (vfprintf(stderr, fmt, pArgs));
1.4 cvs 1132: }
1.116 cvs 1133: #endif DEBUG_LIBWWW
1.4 cvs 1134:
1.27 cvs 1135: /*----------------------------------------------------------------------
1136: AHTAcceptTypesInit
1.74 cvs 1137: This function prepares the Accept header used by Amaya during
1138: the HTTP content negotiation phase
1.27 cvs 1139: ----------------------------------------------------------------------*/
1140: #ifdef __STDC__
1141: static void AHTAcceptTypesInit (HTList *c)
1142: #else /* __STDC__ */
1143: static void AHTAcceptTypesInit (c)
1144: HTList *c;
1145: #endif /* __STDC__ */
1146: {
1147: if (c == (HTList *) NULL)
1148: return;
1149:
1150: /* define here all the mime types that Amaya can accept */
1151:
1.74 cvs 1152: HTConversion_add (c, "image/png", "www/present",
1153: HTThroughLine, 1.0, 0.0, 0.0);
1154: HTConversion_add (c, "image/jpeg", "www/present",
1155: HTThroughLine, 1.0, 0.0, 0.0);
1156: HTConversion_add (c, "image/gif", "www/present",
1157: HTThroughLine, 1.0, 0.0, 0.0);
1158: HTConversion_add (c, "image/xbm", "www/present",
1159: HTThroughLine, 1.0, 0.0, 0.0);
1160: HTConversion_add (c, "image/xpm", "www/present",
1161: HTThroughLine, 1.0, 0.0, 0.0);
1162: HTConversion_add (c, "application/postscript",
1163: "www/present", HTThroughLine, 1.0, 0.0, 0.0);
1.4 cvs 1164:
1.27 cvs 1165: /* Define here the equivalences between MIME types and file extensions for
1166: the types that Amaya can display */
1167:
1168: /* Register the default set of file suffix bindings */
1169: HTFileInit ();
1170:
1171: /* Don't do any case distinction */
1172: HTBind_caseSensitive (FALSE);
1173: }
1.4 cvs 1174:
1.5 cvs 1175: /*----------------------------------------------------------------------
1.17 cvs 1176: AHTConverterInit
1177: Bindings between a source media type and a destination media type
1178: (conversion).
1.5 cvs 1179: ----------------------------------------------------------------------*/
1.15 cvs 1180: #ifdef __STDC__
1181: static void AHTConverterInit (HTList *c)
1182: #else /* __STDC__ */
1183: static void AHTConverterInit (c)
1184: HTList *c;
1185: #endif /* __STDC__ */
1.4 cvs 1186: {
1187:
1188: /* Handler for custom http error messages */
1.7 cvs 1189: HTConversion_add (c, "*/*", "www/debug", AHTMemConverter, 1.0, 0.0, 0.0);
1.4 cvs 1190:
1191: /*
1192: ** These are converters that converts to something other than www/present,
1193: ** that is not directly outputting someting to the user on the screen
1194: */
1195:
1.116 cvs 1196: HTConversion_add (c, "message/rfc822", "*/*", HTMIMEConvert,
1197: 1.0, 0.0, 0.0);
1.4 cvs 1198: HTConversion_add (c, "message/x-rfc822-foot", "*/*", HTMIMEFooter,
1199: 1.0, 0.0, 0.0);
1200: HTConversion_add (c, "message/x-rfc822-head", "*/*", HTMIMEHeader,
1201: 1.0, 0.0, 0.0);
1.116 cvs 1202: HTConversion_add(c,"message/x-rfc822-cont", "*/*", HTMIMEContinue,
1203: 1.0, 0.0, 0.0);
1204: HTConversion_add(c,"message/x-rfc822-partial","*/*", HTMIMEPartial,
1205: 1.0, 0.0, 0.0);
1.4 cvs 1206: HTConversion_add (c, "multipart/*", "*/*", HTBoundary,
1207: 1.0, 0.0, 0.0);
1208: HTConversion_add (c, "text/plain", "text/html", HTPlainToHTML,
1209: 1.0, 0.0, 0.0);
1210:
1211: /*
1.116 cvs 1212: ** The following conversions are converting ASCII output from various
1213: ** protocols to HTML objects.
1214: */
1.4 cvs 1215: HTConversion_add (c, "text/x-http", "*/*", HTTPStatus_new,
1216: 1.0, 0.0, 0.0);
1217:
1218: /*
1.116 cvs 1219: ** We also register a special content type guess stream that can figure out
1220: ** the content type by reading the first bytes of the stream
1221: */
1.4 cvs 1222: HTConversion_add (c, "www/unknown", "*/*", HTGuess_new,
1223: 1.0, 0.0, 0.0);
1224:
1.116 cvs 1225: #ifdef AMAYA_WWW_CACHE
1.4 cvs 1226: /*
1.116 cvs 1227: ** Register a persistent cache stream which can save an object to local
1228: ** file
1229: */
1.4 cvs 1230: HTConversion_add (c, "www/cache", "*/*", HTCacheWriter,
1231: 1.0, 0.0, 0.0);
1.116 cvs 1232: HTConversion_add(c,"www/cache-append", "*/*", HTCacheAppend,
1233: 1.0, 0.0, 0.0);
1234: #endif AMAYA_WWW_CACHE
1.4 cvs 1235:
1236: /*
1.116 cvs 1237: ** This dumps all other formats to local disk without any further
1238: ** action taken
1239: */
1.4 cvs 1240: HTConversion_add (c, "*/*", "www/present", HTSaveLocally,
1241: 0.3, 0.0, 0.0);
1.116 cvs 1242:
1.4 cvs 1243: }
1244:
1.27 cvs 1245:
1.15 cvs 1246: /*----------------------------------------------------------------------
1.17 cvs 1247: AHTProtocolInit
1248: Registers all amaya supported protocols.
1.15 cvs 1249: ----------------------------------------------------------------------*/
1.4 cvs 1250: static void AHTProtocolInit (void)
1251: {
1.116 cvs 1252: char *strptr;
1.4 cvs 1253:
1.116 cvs 1254: /*
1255: NB. Preemptive == YES means Blocking requests
1256: Non-preemptive == NO means Non-blocking requests
1257: */
1258: HTTransport_add("tcp", HT_TP_SINGLE, HTReader_new, HTWriter_new);
1259: HTTransport_add("buffered_tcp", HT_TP_SINGLE, HTReader_new,
1260: HTBufferWriter_new);
1261: HTProtocol_add ("http", "buffered_tcp", HTTP_PORT, NO, HTLoadHTTP, NULL);
1.136 cvs 1262: #ifdef _WINDOWS
1263: HTProtocol_add ("file", "local", 0, YES, HTLoadFile, NULL);
1264: #else
1.116 cvs 1265: HTProtocol_add ("file", "local", 0, NO, HTLoadFile, NULL);
1.136 cvs 1266: #endif _WINDOWS
1.116 cvs 1267: #ifdef AMAYA_WWW_CACHE
1268: HTProtocol_add("cache", "local", 0, YES, HTLoadCache, NULL);
1269: #endif /* AMAYA_WWW_CACHE */
1.103 cvs 1270: #if 0 /* experimental code */
1.116 cvs 1271: HTProtocol_add ("ftp", "tcp", FTP_PORT, NO, HTLoadFTP, NULL);
1.17 cvs 1272: #endif
1.116 cvs 1273:
1274: /* initialize pipelining */
1.152 cvs 1275: strptr = (char *) TtaGetEnvString ("USE_PIPELINING");
1.116 cvs 1276: if (strptr && *strptr && strcasecmp (strptr,"yes" ))
1277: HTTP_setConnectionMode (HTTP_11_NO_PIPELINING);
1.4 cvs 1278: }
1279:
1.15 cvs 1280: /*----------------------------------------------------------------------
1.17 cvs 1281: AHTNetInit
1282: Reegisters "before" and "after" request filters.
1.15 cvs 1283: ----------------------------------------------------------------------*/
1.4 cvs 1284: static void AHTNetInit (void)
1285: {
1286:
1287: /* Register BEFORE filters
1.74 cvs 1288: ** The BEFORE filters handle proxies, caches, rule files etc.
1289: ** The filters are called in the order by which the are registered
1290: ** Not done automaticly - may be done by application!
1291: */
1.4 cvs 1292:
1.116 cvs 1293: #ifdef AMAYA_WWW_CACHE
1294: HTNet_addBefore (HTCacheFilter, "http://*", NULL, HT_FILTER_MIDDLE);
1295: #endif /* AMAYA_WWW_CACHE */
1296: HTNet_addBefore (HTCredentialsFilter, "http://*", NULL, HT_FILTER_LATE);
1297: HTNet_addBefore (HTProxyFilter, NULL, NULL, HT_FILTER_LATE);
1.85 cvs 1298: HTHost_setActivateRequestCallback (AHTOpen_file);
1.4 cvs 1299:
1300: /* register AFTER filters
1.74 cvs 1301: ** The AFTER filters handle error messages, logging, redirection,
1302: ** authentication etc.
1303: ** The filters are called in the order by which the are registered
1304: ** Not done automaticly - may be done by application!
1305: */
1.4 cvs 1306:
1.116 cvs 1307: HTNet_addAfter (HTAuthFilter, "http://*", NULL, HT_NO_ACCESS,
1308: HT_FILTER_MIDDLE);
1309: HTNet_addAfter(HTAuthFilter, "http://*", NULL, HT_REAUTH,
1310: HT_FILTER_MIDDLE);
1311: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_PERM_REDIRECT,
1312: HT_FILTER_MIDDLE);
1313: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_FOUND,
1314: HT_FILTER_MIDDLE);
1315: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_SEE_OTHER,
1316: HT_FILTER_MIDDLE);
1317: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_TEMP_REDIRECT,
1318: HT_FILTER_MIDDLE);
1319: HTNet_addAfter (HTUseProxyFilter, "http://*", NULL, HT_USE_PROXY,
1320: HT_FILTER_MIDDLE);
1321: #ifdef AMAYA_WWW_CACHE
1322: HTNet_addAfter (HTCacheUpdateFilter, "http://*", NULL, HT_NOT_MODIFIED,
1323: HT_FILTER_MIDDLE);
1324: #endif /* AMAYA_WWW_CACHE */
1.151 cvs 1325: #ifdef AMAYA_LOST_UPDATE
1326: HTNet_addAfter (precondition_handler, NULL, NULL, HT_PRECONDITION_FAILED,
1327: HT_FILTER_MIDDLE);
1328: #endif /* AMAYA_LOST_UPDATE */
1.111 cvs 1329: #ifndef _WINDOWS
1.116 cvs 1330: HTNet_addAfter (AHTLoadTerminate_handler, NULL, NULL, HT_ALL,
1331: HT_FILTER_LAST);
1.111 cvs 1332: #endif /* !_WINDOWS */
1.116 cvs 1333: /**** for later ?? ****/
1334: /* HTNet_addAfter(HTInfoFilter, NULL, NULL, HT_ALL, HT_FILTER_LATE); */
1.51 cvs 1335: /* handles all errors */
1.116 cvs 1336: HTNet_addAfter (terminate_handler, NULL, NULL, HT_ALL, HT_FILTER_LAST);
1.4 cvs 1337: }
1338:
1.15 cvs 1339: /*----------------------------------------------------------------------
1.17 cvs 1340: AHTAlertInit
1341: Register alert messages and their callbacks.
1.15 cvs 1342: ----------------------------------------------------------------------*/
1343: #ifdef __STDC__
1344: static void AHTAlertInit (void)
1345: #else
1346: static void AHTAlertInit ()
1347: #endif
1348: {
1349: HTAlert_add (AHTProgress, HT_A_PROGRESS);
1.120 cvs 1350: #ifdef __WINDOWS
1.70 cvs 1351: HTAlert_add ((HTAlertCallback *) WIN_Activate_Request, HT_PROG_CONNECT);
1.116 cvs 1352: #endif /* _WINDOWS */
1.15 cvs 1353: HTAlert_add (AHTError_print, HT_A_MESSAGE);
1.48 cvs 1354: HTError_setShow (~((unsigned int) 0 ) & ~((unsigned int) HT_ERR_SHOW_DEBUG)); /* process all messages except debug ones*/
1.15 cvs 1355: HTAlert_add (AHTConfirm, HT_A_CONFIRM);
1356: HTAlert_add (AHTPrompt, HT_A_PROMPT);
1357: HTAlert_add (AHTPromptUsernameAndPassword, HT_A_USER_PW);
1.116 cvs 1358: }
1359:
1.128 cvs 1360: /*----------------------------------------------------------------------
1361: libwww_CleanCache
1362: frontend to the recursive cache cleaning function
1363: ----------------------------------------------------------------------*/
1364: #ifdef __STDC__
1365: void libwww_CleanCache (void)
1366: #else
1367: void libwww_CleanCache ()
1368: Document doc;
1369: View view;
1370: #endif /* __STDC__ */
1371: {
1.130 cvs 1372: #ifdef AMAYA_WWW_CACHE
1.128 cvs 1373: char *strptr;
1374: char *cache_dir;
1375: int cache_size;
1.130 cvs 1376:
1.128 cvs 1377: if (!HTCacheMode_enabled ())
1378: /* don't do anything if we're not using a cache */
1379: return;
1380: /* temporarily close down the cache, purge it, then restart */
1.130 cvs 1381: cache_dir = TtaStrdup ( (char *) HTCacheMode_getRoot ());
1.128 cvs 1382: cache_size = HTCacheMode_maxSize ();
1.130 cvs 1383: /* remove the concurrent cache lock */
1384: #ifdef DEBUG_LIBWWW
1385: fprintf (stderr, "Clearing the cache lock\n");
1386: #endif /* DEBUG_LIBWWW */
1387: clear_cachelock ();
1.128 cvs 1388: HTCacheTerminate ();
1.130 cvs 1389: HTCacheMode_setEnabled (NO);
1390: strptr = TtaGetMemory (strlen (cache_dir) + 20);
1.128 cvs 1391: strcpy (strptr, cache_dir);
1392: strcat (strptr, DIR_STR);
1393:
1394: RecCleanCache (strptr);
1395:
1.148 cvs 1396: HTCacheMode_setExpires (HT_EXPIRES_AUTO);
1.128 cvs 1397: HTCacheInit (cache_dir, cache_size);
1.130 cvs 1398: /* set a new concurrent cache lock */
1.132 cvs 1399: strcat (strptr, ".lock");
1.130 cvs 1400: if (set_cachelock (strptr) == -1)
1401: /* couldn't open the .lock file, so, we close the cache to
1402: be in the safe side */
1403: {
1404: #ifdef DEBUG_LIBWWW
1405: fprintf (stderr, "couldnt set the cache lock\n");
1406: #endif /* DEBUG_LIBWWW */
1407: HTCacheTerminate ();
1408: HTCacheMode_setEnabled (NO);
1409: }
1410: #ifdef DEBUG_LIBWWW
1411: fprintf (stderr, "set a cache lock\n");
1412: #endif /* DEBUG_LIBWWW */
1413: TtaFreeMemory (strptr);
1.128 cvs 1414: TtaFreeMemory (cache_dir);
1415: #endif /* AMAYA_WWW_CACHE */
1416: }
1417:
1.118 cvs 1418: #ifdef AMAYA_WWW_CACHE
1419: /*----------------------------------------------------------------------
1.128 cvs 1420: RecCleanCache
1.118 cvs 1421: Clears an existing cache directory
1422: ----------------------------------------------------------------------*/
1423: #ifdef __STDC__
1.128 cvs 1424: static void RecCleanCache (char *dirname)
1.118 cvs 1425: #else
1.128 cvs 1426: static void RecCleanCache (char *dirname)
1427: Document doc;
1428: View view;
1.118 cvs 1429: #endif /* __STDC__ */
1.128 cvs 1430:
1431: #ifdef _WINDOWS
1432: {
1433: HANDLE hFindFile;
1434: boolean status;
1435: WIN32_FIND_DATA ffd;
1436:
1437: char t_dir [MAX_LENGTH];
1.130 cvs 1438: char *ptr;
1.128 cvs 1439:
1.130 cvs 1440: /* create a t_dir name to start searching for files */
1.128 cvs 1441: if ((strlen (dirname) + 10) > MAX_LENGTH)
1442: /* ERROR: directory name is too big */
1443: return;
1444:
1445: strcpy (t_dir, dirname);
1.130 cvs 1446: /* save the end of the dirname. We'll use it to make
1447: a complete pathname when erasing files */
1448: ptr = &t_dir[strlen (t_dir)];
1449: strcat (t_dir, "*");
1.128 cvs 1450:
1.130 cvs 1451: hFindFile = FindFirstFile (t_dir, &ffd);
1.128 cvs 1452:
1453: if (hFindFile == INVALID_HANDLE_VALUE)
1454: /* nothing to erase? */
1455: return;
1456:
1457: status = TRUE;
1.130 cvs 1458: while (status)
1459: {
1460: if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
1.133 cvs 1461: {
1462: /* it's a directory, erase it recursively */
1463: if (strcmp (ffd.cFileName, "..") && strcmp (ffd.cFileName, "."))
1464: {
1465: strcpy (ptr, ffd.cFileName);
1466: strcat (ptr, DIR_STR);
1467: RecCleanCache (t_dir);
1.137 cvs 1468: # ifdef _WINDOWS
1469: _rmdir (t_dir);
1470: # else /* !_WINDOWS */
1.133 cvs 1471: rmdir (t_dir);
1.137 cvs 1472: # endif /* _WINDOWS */
1.133 cvs 1473: }
1474: }
1475: else
1.130 cvs 1476: {
1.133 cvs 1477: /* it's a file, erase it */
1.130 cvs 1478: strcpy (ptr, ffd.cFileName);
1.133 cvs 1479: TtaFileUnlink (t_dir);
1.130 cvs 1480: }
1481: status = FindNextFile (hFindFile, &ffd);
1482: }
1.128 cvs 1483: FindClose (hFindFile);
1484: }
1485:
1486: #else /* _WINDOWS */
1.118 cvs 1487: {
1488: DIR *dp;
1489: struct stat st;
1490: #ifdef HAVE_DIRENT_H
1491: struct dirent *d;
1492: #else
1493: struct direct *d;
1494: #endif /* HAVE_DIRENT_H */
1.128 cvs 1495: char filename[BUFSIZ+1];
1.118 cvs 1496:
1497: if ((dp = opendir (dirname)) == NULL)
1498: {
1499: /* @@@ we couldn't open the directory ... we need some msg */
1500: perror (dirname);
1501: exit;
1502: }
1503:
1504: while ((d = readdir (dp)) != NULL)
1505: {
1506: /* skip the UNIX . and .. links */
1507: if (!strcmp (d->d_name, "..")
1508: || !strcmp (d->d_name, "."))
1509: continue;
1510:
1.128 cvs 1511: sprintf (filename, "%s"DIR_STR"%s", dirname, d->d_name);
1.118 cvs 1512: if (lstat (filename, &st) < 0 )
1513: {
1514: /* @@2 need some error message */
1515: perror (filename);
1516: continue;
1517: }
1518:
1519: switch (st.st_mode & S_IFMT)
1520: {
1521: case S_IFDIR:
1522: /* if we find a directory, we erase it, recursively */
1.128 cvs 1523: strcat (filename, DIR_STR);
1524: RecCleanCache (filename);
1525: rmdir (filename);
1.118 cvs 1526: break;
1527: case S_IFLNK:
1528: /* skip any links we find */
1529: continue;
1530: break;
1531: default:
1532: /* erase the filename */
1533: TtaFileUnlink (filename);
1534: break;
1535: }
1536: }
1537: closedir (dp);
1538: }
1.128 cvs 1539: #endif /* _WINDOWS */
1.118 cvs 1540: #endif /* AMAYA_WWW_CACHE */
1541:
1.116 cvs 1542: /*----------------------------------------------------------------------
1543: CacheInit
1544: Reads the cache settings from the thot.ini file.
1545: ----------------------------------------------------------------------*/
1.118 cvs 1546: #ifdef __STDC__
1.116 cvs 1547: static void CacheInit (void)
1.118 cvs 1548: #else
1549: static void Cacheinit ()
1550: #endif
1551:
1.116 cvs 1552: {
1553: #ifndef AMAYA_WWW_CACHE
1554: HTCacheMode_setEnabled (NO);
1555:
1556: #else /* AMAYA_WWW_CACHE */
1557: char *strptr;
1558: char *cache_dir = NULL;
1.130 cvs 1559: char *cache_lockfile;
1560: int cache_size;
1561: boolean cache_enabled;
1562: boolean cache_locked;
1563:
1.116 cvs 1564: /* activate cache? */
1.152 cvs 1565: strptr = (char *) TtaGetEnvString ("USE_CACHE");
1566: if (strptr && *strptr && strcasecmp (strptr, "yes" ))
1.130 cvs 1567: cache_enabled = NO;
1.116 cvs 1568: else
1.130 cvs 1569: cache_enabled = YES;
1.116 cvs 1570:
1.151 cvs 1571: /* cache protected documents? */
1.152 cvs 1572: strptr = (char *) TtaGetEnvString ("CACHE_PROTECTED_DOCS");
1573: if (strptr && *strptr && !strcasecmp (strptr, "yes" ))
1.151 cvs 1574: HTCacheMode_setProtected (YES);
1575: else
1576: HTCacheMode_setProtected (NO);
1577:
1.116 cvs 1578: /* get the cache dir (or use a default one) */
1579: strptr = (char *) TtaGetEnvString ("CACHE_DIR");
1580: if (strptr && *strptr)
1581: {
1582: cache_dir = TtaGetMemory (strlen (strptr) + strlen (CACHE_DIR_NAME) + 1);
1583: strcpy (cache_dir, strptr);
1584: }
1585: else
1586: {
1.122 cvs 1587: cache_dir = TtaGetMemory (strlen (TempFileDirectory)
1.116 cvs 1588: + strlen (CACHE_DIR_NAME) + 1);
1.122 cvs 1589: strcpy (cache_dir, TempFileDirectory);
1.116 cvs 1590: }
1591: strcat (cache_dir, CACHE_DIR_NAME);
1592:
1593: /* get the cache size (or use a default one) */
1594: strptr = (char *) TtaGetEnvString ("CACHE_SIZE");
1595: if (strptr && *strptr)
1596: cache_size = atoi (strptr);
1597: else
1598: cache_size = DEFAULT_CACHE_SIZE;
1599:
1.130 cvs 1600: if (cache_enabled)
1.116 cvs 1601: {
1602: /* how to remove the lock? force remove it? */
1.130 cvs 1603: cache_lockfile = TtaGetMemory (strlen (cache_dir) + 20);
1604: strcpy (cache_lockfile, cache_dir);
1605: strcat (cache_lockfile, DIR_STR".lock");
1606: cache_locked = FALSE;
1607: if (TtaFileExist (cache_lockfile)
1608: && !(cache_locked = test_cachelock (cache_lockfile)))
1.116 cvs 1609: {
1.130 cvs 1610: #ifdef DEBUG_LIBWWW
1611: fprintf (stderr, "found a stale cache, removing it\n");
1612: #endif /* DEBUG_LIBWWW */
1613: /* remove the lock and clean the cache (the clean cache
1614: will remove all, making the following call unnecessary */
1615: /* little trick to win some memory */
1616: strptr = strrchr (cache_lockfile, '.');
1617: *strptr = EOS;
1618: RecCleanCache (cache_lockfile);
1619: *strptr = '.';
1.116 cvs 1620: }
1621:
1.130 cvs 1622: if (!cache_locked)
1623: {
1624: /* initialize the cache if there's no other amaya
1625: instance running */
1626: HTCacheInit (cache_dir, cache_size);
1.148 cvs 1627: HTCacheMode_setExpires (HT_EXPIRES_AUTO);
1.130 cvs 1628: if (set_cachelock (cache_lockfile) == -1)
1629: /* couldn't open the .lock file, so, we close the cache to
1630: be in the safe side */
1631: {
1632: HTCacheTerminate ();
1633: HTCacheMode_setEnabled (NO);
1634: #ifdef DEBUG_LIBWWW
1635: fprintf (stderr, "couldnt set the cache lock\n");
1636: #endif /* DEBUG_LIBWWW */
1637: }
1638: #ifdef DEBUG_LIBWWW
1639: else
1640: fprintf (stderr, "created the cache lock\n");
1641: #endif /* DEBUG_LIBWWW */
1642: }
1643: else
1644: {
1645: HTCacheMode_setEnabled (NO);
1646: #ifdef DEBUG_LIBWWW
1647: fprintf (stderr, "lock detected, starting libwww without a cache/n");
1648: #endif /* DEBUG_LIBWWW */
1649: }
1650: TtaFreeMemory (cache_lockfile);
1.116 cvs 1651: }
1652: else
1653: HTCacheMode_setEnabled (NO);
1654:
1655: if (cache_dir)
1656: TtaFreeMemory (cache_dir);
1657: #endif /* AMAYA_WWW_CACHE */
1.15 cvs 1658: }
1659:
1660: /*----------------------------------------------------------------------
1.97 cvs 1661: ProxyInit
1662: Reads any proxies settings which may be declared as environmental
1663: variables or in the thot.ini file. The former overrides the latter.
1664: ----------------------------------------------------------------------*/
1.118 cvs 1665: #ifdef __STDC__
1.97 cvs 1666: static void ProxyInit (void)
1.118 cvs 1667: #else
1668: static void ProxyInit ()
1669: #endif /* __STDC__ */
1.97 cvs 1670: {
1671: char *strptr;
1672: char *str = NULL;
1673: char *name;
1674:
1675: /* get the proxy settings from the thot.ini file */
1676: strptr = (char *) TtaGetEnvString ("HTTP_PROXY");
1677: if (strptr && *strptr)
1678: HTProxy_add ("http", strptr);
1679: /* get the no_proxy settings from the thot.ini file */
1680: strptr = (char *) TtaGetEnvString ("NO_PROXY");
1681: if (strptr && *strptr)
1682: {
1683: str = TtaStrdup (strptr); /* Get copy we can mutilate */
1684: strptr = str;
1685: while ((name = HTNextField (&strptr)) != NULL) {
1686: char *portstr = strchr (name, ':');
1687: unsigned port=0;
1688: if (portstr) {
1689: *portstr++ = '\0';
1.116 cvs 1690: if (*portstr) port = (unsigned) atoi (portstr);
1.97 cvs 1691: }
1692: /* Register it for all access methods */
1693: HTNoProxy_add (name, NULL, port);
1694: }
1695: TtaFreeMemory (str);
1696: }
1697:
1698: /* use libw3's routine to get all proxy settings from the environment */
1699: HTProxy_getEnvVar ();
1700: }
1701:
1702:
1703: /*----------------------------------------------------------------------
1.17 cvs 1704: AHTProfile_newAmaya
1705: creates the Amaya client profile for libwww.
1.15 cvs 1706: ----------------------------------------------------------------------*/
1707: #ifdef __STDC__
1708: static void AHTProfile_newAmaya (char *AppName, char *AppVersion)
1709: #else /* __STDC__ */
1710: static void AHTProfile_newAmaya (AppName, AppVersion)
1711: char *AppName;
1712: char *AppVersion;
1713: #endif /* __STDC__ */
1.4 cvs 1714: {
1.158 cvs 1715: char * strptr;
1716:
1.4 cvs 1717: /* If the Library is not already initialized then do it */
1718: if (!HTLib_isInitialized ())
1719: HTLibInit (AppName, AppVersion);
1720:
1721: if (!converters)
1722: converters = HTList_new ();
1.27 cvs 1723: if (!acceptTypes)
1724: acceptTypes = HTList_new ();
1.151 cvs 1725: if (!transfer_encodings)
1726: transfer_encodings = HTList_new ();
1727: if (!content_encodings)
1728: content_encodings = HTList_new ();
1.4 cvs 1729:
1730: /* Register the default set of transport protocols */
1731: HTTransportInit ();
1732:
1733: /* Register the default set of application protocol modules */
1734: AHTProtocolInit ();
1735:
1.116 cvs 1736: /* Register the default set of messages and dialog functions */
1737: AHTAlertInit ();
1738: HTAlert_setInteractive (YES);
1739:
1740: #ifdef AMAYA_WWW_CACHE
1741: /* Enable the persistent cache */
1742: CacheInit ();
1743: #else
1744: HTCacheMode_setEnabled (NO);
1745: #endif /* AMAYA_WWW_CACHE */
1.4 cvs 1746:
1747: /* Register the default set of BEFORE and AFTER filters */
1748: AHTNetInit ();
1749:
1750: /* Set up the default set of Authentication schemes */
1751: HTAAInit ();
1.158 cvs 1752: /* activate MDA by defaul */
1753: strptr = (char *) TtaGetEnvString ("ENABLE_MDA");
1754: if (!strptr || (strptr && *strptr && strcasecmp (strptr, "no" )))
1755: HTAA_newModule ("digest", HTDigest_generate, HTDigest_parse,
1756: HTDigest_delete);
1.4 cvs 1757:
1.97 cvs 1758: /* Get any proxy settings */
1759: ProxyInit ();
1.4 cvs 1760:
1761: /* Register the default set of converters */
1762: AHTConverterInit (converters);
1.151 cvs 1763: HTFormat_setConversion (converters);
1.27 cvs 1764: AHTAcceptTypesInit (acceptTypes);
1.4 cvs 1765:
1766: /* Register the default set of transfer encoders and decoders */
1.151 cvs 1767: HTTransferEncoderInit (transfer_encodings);
1768: HTFormat_setTransferCoding(transfer_encodings);
1769:
1770: /* Register the default set of content encoders and decoders */
1771: HTContentEncoderInit(content_encodings);
1772: if (HTList_count(content_encodings) > 0)
1773: HTFormat_setContentCoding(content_encodings);
1774: else
1775: {
1776: HTList_delete(content_encodings);
1777: content_encodings = NULL;
1778: }
1.4 cvs 1779:
1780: /* Register the default set of MIME header parsers */
1.74 cvs 1781: HTMIMEInit (); /* must be called again for language selector */
1.4 cvs 1782:
1783: /* Register the default set of Icons for directory listings */
1.27 cvs 1784: /*HTIconInit(NULL); *//* experimental */
1.4 cvs 1785: }
1786:
1.5 cvs 1787: /*----------------------------------------------------------------------
1.17 cvs 1788: AHTProfile_delete
1789: deletes the Amaya client profile.
1.5 cvs 1790: ----------------------------------------------------------------------*/
1.4 cvs 1791: #ifdef __STDC__
1792: static void AHTProfile_delete (void)
1793: #else
1794: static void AHTProfile_delete ()
1.7 cvs 1795: #endif /* __STDC__ */
1.4 cvs 1796: {
1.22 cvs 1797:
1798: /* free the Amaya global context */
1.151 cvs 1799:
1800: /* Clean up all the registred converters */
1801: HTFormat_deleteAll ();
1802: if (acceptTypes)
1.74 cvs 1803: HTConversion_deleteAll (acceptTypes);
1.151 cvs 1804:
1.74 cvs 1805: HTList_delete (Amaya->docid_status);
1806: HTList_delete (Amaya->reqlist);
1807: TtaFreeMemory (Amaya);
1.61 cvs 1808:
1.151 cvs 1809: if (HTLib_isInitialized ())
1.74 cvs 1810:
1.120 cvs 1811: #ifdef _WINDOWS
1.151 cvs 1812: HTEventTerminate ();
1.120 cvs 1813: #endif _WINDOWS;
1.74 cvs 1814:
1.151 cvs 1815: /* Clean up the persistent cache (if any) */
1.116 cvs 1816: #ifdef AMAYA_WWW_CACHE
1.151 cvs 1817: clear_cachelock ();
1818: HTCacheTerminate ();
1.116 cvs 1819: #endif /* AMAYA_WWW_CACHE */
1.74 cvs 1820:
1.151 cvs 1821: /* Terminate libwww */
1822: HTLibTerminate ();
1.4 cvs 1823: }
1824:
1.5 cvs 1825: /*----------------------------------------------------------------------
1.116 cvs 1826: AmayacontextInit
1827: initializes an internal Amaya context for our libwww interface
1828: ----------------------------------------------------------------------*/
1829: #ifdef __STDC__
1830: static void AmayaContextInit ()
1831: #else
1832: static void AmayaContextInit ()
1833: #endif
1834:
1835: {
1.140 cvs 1836: AmayaAlive_flag = TRUE;
1.116 cvs 1837: /* Initialization of the global context */
1838: Amaya = (AmayaContext *) TtaGetMemory (sizeof (AmayaContext));
1839: Amaya->reqlist = HTList_new ();
1840: Amaya->docid_status = HTList_new ();
1841: Amaya->open_requests = 0;
1842: }
1843:
1844: /*----------------------------------------------------------------------
1.17 cvs 1845: QueryInit
1846: initializes the libwww interface
1.5 cvs 1847: ----------------------------------------------------------------------*/
1.4 cvs 1848: #ifdef __STDC__
1849: void QueryInit ()
1850: #else
1851: void QueryInit ()
1852: #endif
1853: {
1.151 cvs 1854: char *strptr;
1855: int tmp_i;
1856: long tmp_l;
1.4 cvs 1857:
1.116 cvs 1858: AmayaContextInit ();
1.4 cvs 1859: AHTProfile_newAmaya (HTAppName, HTAppVersion);
1.140 cvs 1860: CanDoStop_set (TRUE);
1.4 cvs 1861:
1.116 cvs 1862: #ifdef _WINDOWS
1.125 cvs 1863: HTEventInit ();
1.116 cvs 1864: #endif /* _WINDOWS */
1.72 cvs 1865:
1.123 cvs 1866: #ifndef _WINDOWS
1.116 cvs 1867: HTEvent_setRegisterCallback ((void *) AHTEvent_register);
1868: HTEvent_setUnregisterCallback ((void *) AHTEvent_unregister);
1.120 cvs 1869: HTTimer_registerSetTimerCallback ((void *) AMAYA_SetTimer);
1870: HTTimer_registerDeleteTimerCallback ((void *) AMAYA_DeleteTimer);
1.116 cvs 1871: #endif /* !_WINDOWS */
1.148 cvs 1872:
1.152 cvs 1873: WWW_TraceFlag = CACHE_TRACE;
1.74 cvs 1874: #ifdef DEBUG_LIBWWW
1.116 cvs 1875: /* forwards error messages to our own function */
1876: WWW_TraceFlag = THD_TRACE;
1.138 cvs 1877: HTTrace_setCallback(LineTrace);
1.4 cvs 1878: /* Trace activation (for debugging) */
1.148 cvs 1879: /***
1.138 cvs 1880: WWW_TraceFlag = SHOW_CORE_TRACE | SHOW_THREAD_TRACE | SHOW_PROTOCOL_TRACE;
1881: WWW_TraceFlag |= 0xFFFFFFFFl;
1882: ***/
1.152 cvs 1883: #endif
1884:
1.148 cvs 1885: /* Setting up different network parameters */
1.151 cvs 1886:
1.148 cvs 1887: /* Maximum number of simultaneous open sockets */
1.151 cvs 1888: strptr = (char *) TtaGetEnvString ("MAX_SOCKET");
1889: if (strptr && *strptr)
1890: tmp_i = atoi (strptr);
1891: else
1892: tmp_i = DEFAULT_MAX_SOCKET;
1893: HTNet_setMaxSocket (tmp_i);
1894:
1.148 cvs 1895: /* different network services timeouts */
1.151 cvs 1896: /* dns timeout */
1897: strptr = (char *) TtaGetEnvString ("DNS_TIMEOUT");
1898: if (strptr && *strptr)
1899: tmp_i = atoi (strptr);
1900: else
1901: tmp_i = DEFAULT_DNS_TIMEOUT;
1902: HTDNS_setTimeout (tmp_i);
1903:
1904: /* persistent connections timeout */
1.152 cvs 1905: strptr = (char *) TtaGetEnvString ("PERSIST_CX_TIMEOUT");
1.151 cvs 1906: if (strptr && *strptr)
1907: tmp_l = atol (strptr);
1908: else
1909: tmp_l = DEFAULT_PERSIST_TIMEOUT;
1910: HTHost_setPersistTimeout (tmp_l);
1911:
1.148 cvs 1912: /* default timeout in ms */
1.151 cvs 1913: strptr = (char *) TtaGetEnvString ("NET_EVENT_TIMEOUT");
1914: if (strptr && *strptr)
1915: tmp_i = atoi (strptr);
1916: else
1917: tmp_i = DEFAULT_NET_EVENT_TIMEOUT;
1918: HTHost_setEventTimeout (tmp_i);
1919:
1.4 cvs 1920: #ifdef CATCH_SIG
1.148 cvs 1921: signal (SIGPIPE, SIG_IGN);
1.4 cvs 1922: #endif
1.15 cvs 1923: }
1924:
1925: /*----------------------------------------------------------------------
1.17 cvs 1926: LoopForStop
1.136 cvs 1927: a copy of the Thop event loop so we can handle the stop button in Unix
1928: and preemptive requests under Windows
1.15 cvs 1929: ----------------------------------------------------------------------*/
1930: #ifdef __STDC__
1931: static int LoopForStop (AHTReqContext * me)
1932: #else
1933: static int LoopForStop (AHTReqContext * me)
1934: #endif
1935: {
1.136 cvs 1936: #ifdef _WINDOWS
1937: MSG msg;
1938: unsigned long libwww_msg;
1939: HWND old_active_window, libwww_window;
1940: int status_req = HT_OK;
1941:
1942: old_active_window = GetActiveWindow ();
1943: libwww_window = HTEventList_getWinHandle (&libwww_msg);
1.137 cvs 1944:
1.149 cvs 1945: while (me->reqStatus != HT_END && me->reqStatus != HT_ERR
1946: && me->reqStatus != HT_ABORT && AmayaIsAlive () &&
1947: GetMessage (&msg, NULL, 0, 0))
1948: {
1949: if (msg.message != WM_QUIT)
1950: {
1951: TranslateMessage (&msg);
1952: DispatchMessage (&msg);
1953: }
1954: else
1955: break;
1956: }
1.136 cvs 1957: if (!AmayaIsAlive ())
1958: /* Amaya was killed by one of the callback handlers */
1959: exit (0);
1960: #else /* _WINDOWS */
1.25 cvs 1961: extern ThotAppContext app_cont;
1.51 cvs 1962: XEvent ev;
1963: XtInputMask status;
1.17 cvs 1964: int status_req = HT_OK;
1.15 cvs 1965:
1966: /* to test the async calls */
1.17 cvs 1967: /* Loop while waiting for new events, exists when the request is over */
1.15 cvs 1968: while (me->reqStatus != HT_ABORT &&
1969: me->reqStatus != HT_END &&
1.69 cvs 1970: me->reqStatus != HT_ERR) {
1.116 cvs 1971: if (!AmayaIsAlive ())
1.69 cvs 1972: /* Amaya was killed by one of the callback handlers */
1973: exit (0);
1974:
1975: status = XtAppPending (app_cont);
1.144 cvs 1976: if (status & XtIMXEvent)
1977: {
1978: XtAppNextEvent (app_cont, &ev);
1979: TtaHandleOneEvent (&ev);
1980: }
1981: else if (status != 0)
1982: XtAppProcessEvent (app_cont, XtIMAll);
1.69 cvs 1983: }
1.136 cvs 1984: #endif /* _WINDOWS */
1.69 cvs 1985: switch (me->reqStatus) {
1986: case HT_ERR:
1987: case HT_ABORT:
1.130 cvs 1988: status_req = NO;
1.15 cvs 1989: break;
1990:
1.69 cvs 1991: case HT_END:
1.130 cvs 1992: status_req = YES;
1.15 cvs 1993: break;
1994:
1.69 cvs 1995: default:
1.15 cvs 1996: break;
1.69 cvs 1997: }
1.15 cvs 1998: return (status_req);
1.4 cvs 1999: }
2000:
1.5 cvs 2001: /*----------------------------------------------------------------------
1.15 cvs 2002: QueryClose
1.21 cvs 2003: closes all existing threads, frees all non-automatically deallocated
2004: memory and then ends libwww.
1.5 cvs 2005: ----------------------------------------------------------------------*/
1.116 cvs 2006: void QueryClose ()
1.4 cvs 2007: {
1.24 cvs 2008:
1.140 cvs 2009: AmayaAlive_flag = FALSE;
1.24 cvs 2010:
1.116 cvs 2011: /* remove all the handlers and callbacks that may output a message to
2012: a non-existent Amaya window */
1.130 cvs 2013: #ifndef _WINDOWS
1.116 cvs 2014: HTNet_deleteAfter (AHTLoadTerminate_handler);
1.130 cvs 2015: #endif _WINDOWS
1.116 cvs 2016: HTNet_deleteAfter (redirection_handler);
2017: HTAlertCall_deleteAll (HTAlert_global () );
2018: HTAlert_setGlobal ((HTList *) NULL);
2019: HTEvent_setRegisterCallback ((HTEvent_registerCallback *) NULL);
2020: HTEvent_setUnregisterCallback ((HTEvent_unregisterCallback *) NULL);
2021: #ifndef _WINDOWS
2022: /** need to erase all existing timers too **/
2023: HTTimer_registerSetTimerCallback (NULL);
2024: HTTimer_registerDeleteTimerCallback (NULL);
2025: #endif /* !_WINDOWS */
2026: HTHost_setActivateRequestCallback (NULL);
2027: Thread_deleteAll ();
1.21 cvs 2028:
1.116 cvs 2029: HTProxy_deleteAll ();
2030: HTNoProxy_deleteAll ();
2031: HTGateway_deleteAll ();
2032: AHTProfile_delete ();
2033: }
2034:
2035: /*----------------------------------------------------------------------
2036: NextNameValue
2037: ---------------------------------------------------------------------*/
2038: #ifdef __STDC__
2039: static char * NextNameValue (char ** pstr, char **name, char **value)
2040: #else
2041: static char * NextNameValue (pstr, name, value);
2042: char ** pstr;
2043: char **name;
2044: char **value;
2045: #endif /* __STDC__ */
2046: {
2047: char * p = *pstr;
2048: char * start = NULL;
2049: if (!pstr || !*pstr) return NULL;
2050:
2051: if (!*p) {
2052: *pstr = p;
2053: *name = NULL;
2054: *value = NULL;
2055: return NULL; /* No field */
2056: }
2057:
2058: /* Now search for the next '&' and ';' delimitators */
2059: start = p;
2060: while (*p && *p != '&' && *p != ';') p++;
2061: if (*p)
2062: *p++ = '\0';
2063: *pstr = p;
2064:
2065: /* Search for the name and value */
2066: *name = start;
2067: p = start;
2068:
2069: while(*p && *p != '=')
2070: p++;
2071: if (*p)
2072: *p++ = '\0';
2073: *value = p;
2074:
2075: return start;
2076: }
2077:
2078: /*----------------------------------------------------------------------
2079: PrepareFormdata
2080: ---------------------------------------------------------------------*/
2081: #ifdef __STDC__
2082: static HTAssocList * PrepareFormdata (char *string)
2083: #else
2084: static HTAssocList * PrepareFormdata (string)
2085: char *string;
2086: #endif /* __STDC__ */
2087: {
2088: char * tmp_string, * tmp_string_ptr;
2089: char * name;
2090: char * value;
2091: HTAssocList * formdata;
2092:
2093: if (!string)
2094: return NULL;
2095:
2096: /* store the ptr in another variable, as the original address will
2097: change
2098: */
2099:
2100: tmp_string_ptr = tmp_string = TtaStrdup (string);
2101: formdata = HTAssocList_new();
2102:
2103: while (*tmp_string)
2104: {
2105: NextNameValue (&tmp_string, &name, &value);
2106: HTAssocList_addObject(formdata,
2107: name, value);
2108: }
2109:
2110: TtaFreeMemory (tmp_string_ptr);
2111: return formdata;
1.4 cvs 2112: }
2113:
1.99 cvs 2114:
2115: /*----------------------------------------------------------------------
2116: InvokeGetObjectWWW_callback
2117: A simple function to invoke a callback function whenever there's an error
2118: in GetObjectWWW
2119: ---------------------------------------------------------------------*/
2120:
1.116 cvs 2121: #ifdef __STDC__
2122: void InvokeGetObjectWWW_callback (int docid, char *urlName, char *outputfile, TTcbf *terminate_cbf, void *context_tcbf, int status)
1.99 cvs 2123: #else
1.111 cvs 2124: void InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf, context_tcbf, status)
1.99 cvs 2125: int docid;
2126: char *urlName;
2127: char *outputfile;
2128: TTcbf *terminate_cbf;
2129: void *context_tcbf;
1.116 cvs 2130: #endif /* __STDC__ */
1.99 cvs 2131: {
2132: if (!terminate_cbf)
2133: return;
2134:
1.116 cvs 2135: (*terminate_cbf) (docid, status, urlName, outputfile,
1.99 cvs 2136: NULL, context_tcbf);
2137: }
2138:
2139:
2140:
1.5 cvs 2141: /*----------------------------------------------------------------------
1.15 cvs 2142: GetObjectWWW
1.17 cvs 2143: this function requests a resource designated by a URLname into a
2144: temporary filename. The download can come from a simple GET operation,
2145: or can come from POSTING/GETTING a form. In the latter
2146: case, the function receives a query string to send to the server.
2147:
1.5 cvs 2148: 4 file retrieval modes are proposed:
2149: AMAYA_SYNC : blocking mode
2150: AMAYA_ISYNC : incremental, blocking mode
2151: AMAYA_ASYNC : non-blocking mode
2152: AMAYA_IASYNC : incremental, non-blocking mode
2153:
2154: In the incremental mode, each time a package arrives, it will be
2155: stored in the temporary file. In addition, if an
2156: incremental_callback function is defined, this function will be
2157: called and handled a copy of the newly received data package.
2158: Finally, if a terminate_callback function is defined, it will be
2159: invoked when the request terminates. The caller of this function
1.4 cvs 2160: can define two different contexts to be passed to the callback
2161: functions.
2162:
2163: When the function is called with the SYNC mode, the function will
2164: return only when the requested file has been loaded.
2165: The ASYNC mode will immediately return after setting up the
2166: call.
2167:
2168: Notes:
2169: At the end of a succesful request, the urlName string contains the
2170: name of the actually retrieved URL. As a URL can change over the time,
2171: (e.g., be redirected elsewhere), it is advised that the function
1.17 cvs 2172: caller verify the value of the urlName variable at the end of
1.4 cvs 2173: a request.
2174:
2175: Inputs:
2176: - docid Document identifier for the set of objects being
2177: retrieved.
2178: - urlName The URL to be retrieved (MAX_URL_LENGTH chars length)
2179: - outputfile A pointer to an empty string of MAX_URL_LENGTH.
2180: - mode The retrieval mode.
2181: - incremental_cbf
2182: - context_icbf
2183: Callback and context for the incremental modes
2184: - terminate_cbf
2185: - context_icbf
2186: Callback and context for a terminate handler
1.17 cvs 2187: -error_html if TRUE, then display any server error message as an
2188: HTML document.
1.88 cvs 2189: - content_type a string
2190:
1.4 cvs 2191: Outputs:
2192: - urlName The URL that was retrieved
2193: - outputfile The name of the temporary file which holds the
2194: retrieved data. (Only in case of success)
1.88 cvs 2195: - if content_type wasn't NULL, it will contain a copy of the parameter
2196: sent in the HTTP answer
1.4 cvs 2197: Returns:
2198: HT_ERROR
2199: HT_OK
1.5 cvs 2200:
2201: ----------------------------------------------------------------------*/
1.4 cvs 2202: #ifdef __STDC__
1.127 cvs 2203: int GetObjectWWW (int docid, char* urlName, char* formdata,
1.116 cvs 2204: char* outputfile, int mode, TIcbf* incremental_cbf,
2205: void* context_icbf, TTcbf* terminate_cbf,
1.88 cvs 2206: void* context_tcbf, boolean error_html, char *content_type)
1.4 cvs 2207: #else
1.127 cvs 2208: int GetObjectWWW (docid, urlName, formdata, outputfile, mode,
1.116 cvs 2209: incremental_cbf, context_icbf,
1.88 cvs 2210: terminate_cbf, context_tcbf, error_html, content_type)
1.73 cvs 2211: int docid;
2212: char *urlName;
1.127 cvs 2213: char *formdata;
1.73 cvs 2214: char *outputfile;
2215: int mode;
2216: TIcbf *incremental_cbf;
2217: void *context_icbf;
2218: TTcbf *terminate_cbf;
2219: void *context_tcbf;
2220: boolean error_html;
1.88 cvs 2221: char *content_type;
1.4 cvs 2222: #endif
2223: {
2224: AHTReqContext *me;
2225: char *ref;
1.107 cvs 2226: int status, l;
1.114 cvs 2227: int tempsubdir;
1.7 cvs 2228:
1.116 cvs 2229: if (urlName == NULL || docid == 0 || outputfile == NULL)
2230: {
2231: /* no file to be loaded */
2232: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_BAD_URL), urlName);
1.69 cvs 2233:
1.116 cvs 2234: if (error_html)
1.69 cvs 2235: /* so we can show the error message */
2236: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.116 cvs 2237: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
2238: context_tcbf, HT_ERROR);
2239: return HT_ERROR;
2240: }
1.7 cvs 2241:
1.159 cvs 2242: /* if it's a 'docImage', we have already downloaded it */
2243: if (!strncmp ("internal:", urlName, 9))
2244: {
2245: strcpy (outputfile, urlName);
2246: InvokeGetObjectWWW_callback (docid, urlName, outputfile,
2247: terminate_cbf, context_tcbf, HT_OK);
2248: return HT_OK;
2249: }
2250:
1.4 cvs 2251: /* do we support this protocol? */
1.116 cvs 2252: if (IsValidProtocol (urlName) == NO)
2253: {
2254: /* return error */
2255: outputfile[0] = EOS; /* file could not be opened */
2256: TtaSetStatus (docid, 1,
2257: TtaGetMessage (AMAYA, AM_GET_UNSUPPORTED_PROTOCOL),
2258: urlName);
2259:
2260: if (error_html)
1.69 cvs 2261: /* so we can show the error message */
2262: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.116 cvs 2263: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
2264: context_tcbf, HT_ERROR);
2265: return HT_ERROR;
2266: }
1.4 cvs 2267:
1.114 cvs 2268: /* we store CSS in subdir named 0; all the other files go to a subidr
2269: named after their own docid */
2270:
2271: tempsubdir = (mode & AMAYA_LOAD_CSS) ? 0 : docid;
2272:
1.116 cvs 2273: /* create a tempfilename */
2274: sprintf (outputfile, "%s%c%d%c%04dAM",
2275: TempFileDirectory, DIR_SEP, tempsubdir, DIR_SEP, object_counter);
2276: /* update the object_counter (used for the tempfilename) */
1.4 cvs 2277: object_counter++;
1.116 cvs 2278:
1.4 cvs 2279: /* normalize the URL */
1.45 cvs 2280: ref = AmayaParseUrl (urlName, "", AMAYA_PARSE_ALL);
1.4 cvs 2281: /* should we abort the request if we could not normalize the url? */
1.69 cvs 2282: if (ref == (char*) NULL || ref[0] == EOS) {
2283: /*error */
2284: outputfile[0] = EOS;
2285: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_BAD_URL), urlName);
2286:
2287: if (error_html)
1.116 cvs 2288: /* so we can show the error message */
2289: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.99 cvs 2290: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
1.116 cvs 2291: context_tcbf, HT_ERROR);
1.69 cvs 2292: return HT_ERROR;
2293: }
1.116 cvs 2294:
1.4 cvs 2295: /* verify if that file name existed */
1.9 cvs 2296: if (TtaFileExist (outputfile))
1.77 cvs 2297: TtaFileUnlink (outputfile);
1.116 cvs 2298:
1.4 cvs 2299: /* Initialize the request structure */
2300: me = AHTReqContext_new (docid);
1.116 cvs 2301: if (me == NULL)
2302: {
2303: outputfile[0] = EOS;
2304: /* need an error message here */
2305: TtaFreeMemory (ref);
2306: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
2307: context_tcbf, HT_ERROR);
2308: return HT_ERROR;
2309: }
2310:
1.4 cvs 2311: /* Specific initializations for POST and GET */
1.116 cvs 2312: if (mode & AMAYA_FORM_POST)
2313: {
2314: me->method = METHOD_POST;
2315: HTRequest_setMethod (me->request, METHOD_POST);
2316: }
2317: else
2318: {
2319: me->method = METHOD_GET;
2320: if (!HasKnownFileSuffix (ref))
2321: HTRequest_setConversion(me->request, acceptTypes, TRUE);
2322: }
1.93 cvs 2323:
1.116 cvs 2324: /* Common initialization for all HTML methods */
1.4 cvs 2325: me->mode = mode;
2326: me->error_html = error_html;
2327: me->incremental_cbf = incremental_cbf;
2328: me->context_icbf = context_icbf;
2329: me->terminate_cbf = terminate_cbf;
2330: me->context_tcbf = context_tcbf;
1.64 cvs 2331:
1.69 cvs 2332: /* for the async. request modes, we need to have our
1.4 cvs 2333: own copy of outputfile and urlname
1.116 cvs 2334: */
1.4 cvs 2335:
1.116 cvs 2336: if ((mode & AMAYA_ASYNC) || (mode & AMAYA_IASYNC))
2337: {
2338: l = strlen (outputfile);
2339: if (l > MAX_LENGTH)
2340: me->outputfile = TtaGetMemory (l + 2);
2341: else
2342: me->outputfile = TtaGetMemory (MAX_LENGTH + 2);
2343: strcpy (me->outputfile, outputfile);
2344: l = strlen (urlName);
2345: if (l > MAX_LENGTH)
2346: me->urlName = TtaGetMemory (l + 2);
2347: else
2348: me->urlName = TtaGetMemory (MAX_LENGTH + 2);
2349: strcpy (me->urlName, urlName);
2350: #ifdef _WINDOWS
2351: /* force windows ASYNC requests to always be non preemptive */
2352: HTRequest_setPreemptive (me->request, NO);
2353: #endif /*_WINDOWS */
2354: } /* AMAYA_ASYNC mode */
2355: else
2356: #ifdef _WINDOWS
2357: {
2358: me->outputfile = outputfile;
2359: me->urlName = urlName;
2360: /* force windows SYNC requests to always be non preemptive */
2361: HTRequest_setPreemptive (me->request, YES);
2362: }
2363: #else /* !_WINDOWS */
2364: {
2365: me->outputfile = outputfile;
2366: me->urlName = urlName;
2367: }
2368: /***
1.136 cvs 2369: In order to take into account the stop button,
2370: the requests will be always asynchronous, however, if mode=AMAYA_SYNC,
1.57 cvs 2371: we will loop until the document has been received or a stop signal
2372: generated
1.77 cvs 2373: ****/
1.116 cvs 2374: HTRequest_setPreemptive (me->request, NO);
2375: #endif /* _WINDOWS */
1.61 cvs 2376:
1.151 cvs 2377: /*
2378: ** Make sure that the first request is flushed immediately and not
2379: ** buffered in the output buffer
2380: */
2381: if (mode & AMAYA_FLUSH_REQUEST)
2382: HTRequest_setFlush(me->request, YES);
2383: HTRequest_setFlush(me->request, YES);
2384:
1.61 cvs 2385: /* prepare the URLname that will be displayed in teh status bar */
2386: ChopURL (me->status_urlName, me->urlName);
1.77 cvs 2387: TtaSetStatus (me->docid, 1,
2388: TtaGetMessage (AMAYA, AM_FETCHING),
2389: me->status_urlName);
1.4 cvs 2390:
2391: me->anchor = (HTParentAnchor *) HTAnchor_findAddress (ref);
1.45 cvs 2392: TtaFreeMemory (ref);
1.4 cvs 2393:
1.114 cvs 2394: if (mode & AMAYA_NOCACHE)
1.116 cvs 2395: HTRequest_setReloadMode (me->request, HT_CACHE_FLUSH);
2396:
2397: /* prepare the query string and format for POST */
2398: if (mode & AMAYA_FORM_POST)
1.114 cvs 2399: {
1.116 cvs 2400: HTAnchor_setFormat ((HTParentAnchor *) me->anchor,
2401: HTAtom_for ("application/x-www-form-urlencoded"));
2402: HTAnchor_setLength ((HTParentAnchor *) me->anchor, me->block_size);
2403: HTRequest_setEntityAnchor (me->request, me->anchor);
2404: }
1.114 cvs 2405:
1.127 cvs 2406: /* create the formdata element for libwww */
2407: if (formdata)
2408: me->formdata = PrepareFormdata (formdata);
2409:
1.116 cvs 2410: /* do the request */
2411: if (mode & AMAYA_FORM_POST)
1.119 cvs 2412: {
2413: /* this call doesn't give back a boolean */
2414: HTParentAnchor * posted = NULL;
2415:
2416: posted = HTPostFormAnchor (me->formdata, (HTAnchor *) me->anchor,
2417: me->request);
2418: status = posted ? YES : NO;
2419: }
1.127 cvs 2420: else if (formdata)
2421: status = HTGetFormAnchor(me->formdata, (HTAnchor *) me->anchor,
2422: me->request);
1.116 cvs 2423: else
1.77 cvs 2424: status = HTLoadAnchor ((HTAnchor *) me->anchor, me->request);
1.69 cvs 2425:
1.123 cvs 2426: /* @@@ may need some special windows error msg here */
1.116 cvs 2427: /* control the errors */
1.4 cvs 2428:
1.130 cvs 2429: if (status == NO)
1.116 cvs 2430: /* the request invocation failed */
2431: {
2432: /* show an error message on the status bar */
2433: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
2434: TtaSetStatus (docid, 1,
2435: TtaGetMessage (AMAYA, AM_CANNOT_LOAD),
2436: urlName);
2437: if (me->reqStatus == HT_NEW)
2438: /* manually invoke the last processing that usually gets done
2439: in a succesful request */
2440: InvokeGetObjectWWW_callback (docid, urlName, outputfile,
2441: terminate_cbf, context_tcbf, HT_ERROR);
2442: /* terminate_handler wasn't called */
1.136 cvs 2443: AHTReqContext_delete (me);
1.116 cvs 2444: }
2445: else
1.136 cvs 2446: /* end treatment for SYNC requests */
1.120 cvs 2447: if ((mode & AMAYA_SYNC) || (mode & AMAYA_ISYNC))
2448: {
1.136 cvs 2449: /* wait here untilt the asynchronous request finishes */
1.130 cvs 2450: status = LoopForStop (me);
1.136 cvs 2451: /* if status returns HT_ERROR, should we invoke the callback? */
1.120 cvs 2452: if (!HTRequest_kill (me->request))
2453: AHTReqContext_delete (me);
2454: }
1.130 cvs 2455:
1.136 cvs 2456: /* an interface problem!!! */
2457: return (status == YES ? 0 : -1);
1.4 cvs 2458: }
2459:
1.5 cvs 2460: /*----------------------------------------------------------------------
1.17 cvs 2461: PutObjectWWW
2462: frontend for uploading a resource to a URL. This function downloads
2463: a file to be uploaded into memory, it then calls UploadMemWWW to
2464: finish the job.
2465:
1.5 cvs 2466: 2 upload modes are proposed:
2467: AMAYA_SYNC : blocking mode
2468: AMAYA_ASYNC : non-blocking mode
2469:
1.4 cvs 2470: When the function is called with the SYNC mode, the function will
2471: return only when the file has been uploaded.
2472: The ASYNC mode will immediately return after setting up the
2473: call. Furthermore, at the end of an upload, the ASYNC mode will
2474: call back terminate_cbf, handling it the context defined in
2475: context_tcbf.
2476:
2477: Notes:
2478: At the end of a succesful request, the urlName string contains the
2479: name of the actually uploaded URL. As a URL can change over the time,
2480: (e.g., be redirected elsewhere), it is advised that the function
2481: caller verifies the value of the urlName variable at the end of
2482: a request.
2483:
2484: Inputs:
2485: - docid Document identifier for the set of objects being
2486: retrieved.
2487: - fileName A pointer to the local file to upload
2488: - urlName The URL to be uploaded (MAX_URL_LENGTH chars length)
2489: - mode The retrieval mode.
2490: - terminate_cbf
2491: - context_icbf
2492: Callback and context for a terminate handler
2493:
2494: Outputs:
2495: - urlName The URL that was uploaded
2496:
2497: Returns:
2498: HT_ERROR
2499: HT_OK
1.5 cvs 2500: ----------------------------------------------------------------------*/
1.4 cvs 2501: #ifdef __STDC__
1.27 cvs 2502: int PutObjectWWW (int docid, char *fileName, char *urlName, int mode, PicType contentType,
1.4 cvs 2503: TTcbf * terminate_cbf, void *context_tcbf)
2504: #else
1.26 cvs 2505: int PutObjectWWW (docid, urlName, fileName, mode, contentType,
1.4 cvs 2506: ,terminate_cbf, context_tcbf)
2507: int docid;
2508: char *urlName;
2509: char *fileName;
2510: int mode;
1.27 cvs 2511: PicType contentType;
1.4 cvs 2512: TTcbf *terminate_cbf;
2513: void *context_tcbf;
2514:
1.116 cvs 2515: #endif /* __STDC__ */
1.4 cvs 2516: {
1.116 cvs 2517: AHTReqContext *me;
1.4 cvs 2518: int status;
2519: int fd;
2520: struct stat file_stat;
1.116 cvs 2521: char *fileURL;
1.151 cvs 2522: /* temporarily put it here, should come in the API */
2523: boolean UsePreconditions = FALSE;
1.4 cvs 2524:
1.33 cvs 2525: AmayaLastHTTPErrorMsg [0] = EOS;
2526:
1.116 cvs 2527: if (urlName == NULL || docid == 0 || fileName == NULL
2528: || !TtaFileExist (fileName))
1.4 cvs 2529: /* no file to be uploaded */
2530: return HT_ERROR;
2531:
2532: /* do we support this protocol? */
1.7 cvs 2533: if (IsValidProtocol (urlName) == NO)
2534: {
2535: /* return error */
1.77 cvs 2536: TtaSetStatus (docid, 1,
2537: TtaGetMessage (AMAYA, AM_PUT_UNSUPPORTED_PROTOCOL),
1.7 cvs 2538: urlName);
2539: return HT_ERROR;
2540: }
1.116 cvs 2541:
2542: /* verify the file's size */
2543: #ifndef _WINDOWS
1.7 cvs 2544: if ((fd = open (fileName, O_RDONLY)) == -1)
1.116 cvs 2545: #else
1.137 cvs 2546: if ((fd = _open (fileName, _O_RDONLY | _O_BINARY)) == -1)
1.116 cvs 2547: #endif /* _WINDOWS */
1.7 cvs 2548: {
2549: /* if we could not open the file, exit */
2550: /*error msg here */
2551: return (HT_ERROR);
2552: }
1.4 cvs 2553:
2554: fstat (fd, &file_stat);
1.137 cvs 2555: # ifdef _WINDOWS
2556: _close (fd);
2557: # else /* _WINDOWS */
1.116 cvs 2558: close (fd);
1.137 cvs 2559: # endif /* _WINDOWS */
1.4 cvs 2560:
1.7 cvs 2561: if (file_stat.st_size == 0)
2562: {
2563: /* file was empty */
2564: /*errmsg here */
2565: return (HT_ERROR);
2566: }
1.116 cvs 2567:
2568: /* prepare the request context */
1.4 cvs 2569:
2570: if (THD_TRACE)
1.116 cvs 2571: fprintf (stderr, "file size == %u\n", (unsigned) file_stat.st_size);
1.4 cvs 2572:
2573: me = AHTReqContext_new (docid);
2574:
1.7 cvs 2575: if (me == NULL)
2576: {
1.131 cvs 2577: /* @@ need an error message here */
1.151 cvs 2578: TtaHandlePendingEvents ();
1.7 cvs 2579: return (HT_ERROR);
2580: }
1.116 cvs 2581:
1.4 cvs 2582: me->mode = mode;
2583: me->incremental_cbf = (TIcbf *) NULL;
2584: me->context_icbf = (void *) NULL;
2585: me->terminate_cbf = terminate_cbf;
2586: me->context_tcbf = context_tcbf;
2587: me->urlName = urlName;
1.116 cvs 2588: me->block_size = file_stat.st_size;
1.17 cvs 2589: /* select the parameters that distinguish a PUT from a GET/POST */
1.4 cvs 2590: me->method = METHOD_PUT;
2591: HTRequest_setMethod (me->request, METHOD_PUT);
2592: me->output = stdout;
1.17 cvs 2593: /* we are not expecting to receive any input from the server */
2594: me->outputfile = (char *) NULL;
1.4 cvs 2595:
1.134 cvs 2596: #ifdef _WINDOWS
2597: /* libwww's HTParse function doesn't take into account the drive name;
2598: so we sidestep it */
2599: fileURL = NULL;
2600: StrAllocCopy (fileURL, "file:");
2601: StrAllocCat (fileURL, fileName);
2602: #else
1.116 cvs 2603: fileURL = HTParse (fileName, "file:/", PARSE_ALL);
1.134 cvs 2604: #endif /* _WINDOWS */
1.116 cvs 2605: me->anchor = (HTParentAnchor *) HTAnchor_findAddress (fileURL);
2606: HT_FREE (fileURL);
1.114 cvs 2607:
1.28 cvs 2608: /* Set the Content-Type of the file we are uploading */
1.77 cvs 2609: HTAnchor_setFormat ((HTParentAnchor *) me->anchor,
2610: AHTGuessAtom_for (me->urlName, contentType));
1.17 cvs 2611:
1.134 cvs 2612: /* associate the anchor to the request */
1.4 cvs 2613: HTRequest_setEntityAnchor (me->request, me->anchor);
1.134 cvs 2614:
2615: /* define other request characteristics */
1.116 cvs 2616: #ifdef _WINDOWS
1.136 cvs 2617: HTRequest_setPreemptive (me->request, NO);
1.116 cvs 2618: #else
1.134 cvs 2619: HTRequest_setPreemptive (me->request, NO);
1.116 cvs 2620: #endif /* _WINDOWS */
2621:
1.151 cvs 2622: /*
2623: ** Make sure that the first request is flushed immediately and not
2624: ** buffered in the output buffer
2625: */
2626: if (mode & AMAYA_FLUSH_REQUEST)
2627: HTRequest_setFlush(me->request, YES);
2628:
2629: /* Should we use preconditions? */
2630: if (UsePreconditions)
2631: HTRequest_setPreconditions(me->request, YES);
2632:
1.136 cvs 2633: /* don't use the cache while saving a document */
2634: HTRequest_setReloadMode (me->request, HT_CACHE_FLUSH);
1.116 cvs 2635:
1.74 cvs 2636: /* prepare the URLname that will be displayed in teh status bar */
2637: ChopURL (me->status_urlName, me->urlName);
2638: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_REMOTE_SAVING),
2639: me->status_urlName);
1.114 cvs 2640:
1.116 cvs 2641: status = HTPutDocumentAbsolute (me->anchor, urlName, me->request);
1.4 cvs 2642:
1.130 cvs 2643: if (status == YES && me->reqStatus != HT_ERR)
1.7 cvs 2644: {
2645: /* part of the stop button handler */
2646: if ((mode & AMAYA_SYNC) || (mode & AMAYA_ISYNC))
1.136 cvs 2647: status = LoopForStop (me);
1.15 cvs 2648: }
1.136 cvs 2649: if (!HTRequest_kill (me->request))
2650: AHTReqContext_delete (me);
2651:
1.116 cvs 2652: TtaHandlePendingEvents ();
1.90 cvs 2653:
1.130 cvs 2654: return (status == YES ? 0 : -1);
1.28 cvs 2655: }
1.4 cvs 2656:
1.5 cvs 2657: /*----------------------------------------------------------------------
1.138 cvs 2658: StopRequest
1.17 cvs 2659: stops (kills) all active requests associated with a docid
1.5 cvs 2660: ----------------------------------------------------------------------*/
1.4 cvs 2661: #ifdef __STDC__
2662: void StopRequest (int docid)
2663: #else
2664: void StopRequest (docid)
2665: int docid;
2666: #endif
2667: {
1.140 cvs 2668: if (Amaya && CanDoStop ())
1.138 cvs 2669: {
1.139 cvs 2670: #if 0 /* for later */
1.140 cvs 2671: AHTDocId_Status *docid_status;
2672: /* verify if there are any requests at all associated with docid */
1.138 cvs 2673: docid_status = (AHTDocId_Status *) GetDocIdStatus (docid,
2674: Amaya->docid_status);
2675: if (docid_status == (AHTDocId_Status *) NULL)
2676: return;
1.139 cvs 2677: #endif /* 0 */
1.138 cvs 2678: /* temporary call to stop all requests, as libwww changed its API */
2679: StopAllRequests (docid);
2680: }
2681: }
2682:
2683: /*----------------------------------------------------------------------
2684: StopAllRequests
2685: stops (kills) all active requests. We use the docid
2686: ----------------------------------------------------------------------*/
2687: #ifdef __STDC__
2688: void StopAllRequests (int docid)
2689: #else
1.140 cvs 2690: void StopAllRequests (docid)
1.138 cvs 2691: int docid;
2692: #endif
2693: {
1.4 cvs 2694: HTList *cur;
2695: AHTReqContext *me;
1.146 cvs 2696: static boolean lock_stop = 0;
1.116 cvs 2697:
1.138 cvs 2698: /* only do the stop if we're not being called while processing a
1.146 cvs 2699: request, and if we're not already dealing with a stop */
2700: if (Amaya && CanDoStop () && !lock_stop)
1.7 cvs 2701: {
1.100 cvs 2702: #ifdef DEBUG_LIBWWW
1.138 cvs 2703: fprintf (stderr, "StopRequest: number of Amaya requests "
2704: "before kill: %d\n", Amaya->open_requests);
1.100 cvs 2705: #endif /* DEBUG_LIBWWW */
1.150 cvs 2706: /* enter the critical section */
1.146 cvs 2707: lock_stop = TRUE;
1.160 ! cvs 2708: /* HTHost_killPipe (me->request->net->host); */
! 2709: /* HTNet_killAll (); */
1.116 cvs 2710: cur = Amaya->reqlist;
2711: while ((me = (AHTReqContext *) HTList_nextObject (cur)))
2712: {
1.140 cvs 2713: if (AmayaIsAlive ())
1.160 ! cvs 2714: {
! 2715: if (me->request->net)
! 2716: HTNet_killPipe (me->request->net);
! 2717: else
! 2718: {
! 2719: if (me->reqStatus != HT_END)
! 2720: {
! 2721: if (me->terminate_cbf)
! 2722: (*me->terminate_cbf) (me->docid, -1, me->urlName,
! 2723: me->outputfile,
! 2724: me->content_type,
! 2725: me->context_tcbf);
1.148 cvs 2726: #ifdef DEBUG_LIBWWW
1.160 ! cvs 2727: fprintf (stderr,"StopRequest: killing req %p, url %s, status %d\n", me, me->urlName, me->reqStatus);
1.148 cvs 2728: #endif /* DEBUG_LIBWWW */
1.160 ! cvs 2729: AHTReqContext_delete (me);
! 2730: cur = Amaya->reqlist;
! 2731: }
1.142 cvs 2732: #ifndef _WINDOWS
2733: #ifdef WWW_XWINDOWS
1.140 cvs 2734: /* to be on the safe side, remove all outstanding X events */
1.160 ! cvs 2735: else
! 2736: RequestKillAllXtevents (me);
1.142 cvs 2737: #endif /* WWW_XWINDOWS */
2738: #endif /* !_WINDOWS */
1.160 ! cvs 2739: }
! 2740: }
1.116 cvs 2741: }
1.148 cvs 2742: /* expire all outstanding timers */
2743: HTTimer_expireAll ();
1.150 cvs 2744: /* Delete remaining channels */
2745: HTChannel_safeDeleteAll ();
2746: /* exit the critical section */
1.148 cvs 2747: lock_stop = FALSE;
1.100 cvs 2748: #ifdef DEBUG_LIBWWW
1.138 cvs 2749: fprintf (stderr, "StopRequest: number of Amaya requests "
2750: "after kill: %d\n", Amaya->open_requests);
1.100 cvs 2751: #endif /* DEBUG_LIBWWW */
1.138 cvs 2752: }
2753: } /* StopAllRequests */
1.17 cvs 2754:
2755:
1.105 cvs 2756: /*----------------------------------------------------------------------
2757: AmayaIsAlive
1.140 cvs 2758: returns the value of the AmayaAlive_flag
1.105 cvs 2759: ----------------------------------------------------------------------*/
2760: #ifdef __STDC__
2761: boolean AmayaIsAlive (void)
2762: #else
2763: boolean AmayaIsAlive ()
2764: #endif /* _STDC_ */
2765: {
1.140 cvs 2766: return AmayaAlive_flag;
2767: }
2768:
2769: /*----------------------------------------------------------------------
2770: CanDoStop
2771: returns the value of the CanDoStop flag
2772: ----------------------------------------------------------------------*/
2773: #ifdef __STDC__
2774: boolean CanDoStop (void)
2775: #else
2776: boolean CanDoStop ()
2777: #endif /* _STDC_ */
2778: {
2779: return CanDoStop_flag;
2780: }
2781:
2782: /*----------------------------------------------------------------------
2783: CanDoStop_set
2784: sets the value of the CanDoStop flag
2785: ----------------------------------------------------------------------*/
2786: #ifdef __STDC__
2787: void CanDoStop_set (boolean value)
2788: #else
2789: void CanDoStop (value)
2790: boolean value;
2791: #endif /* _STDC_ */
2792: {
2793: CanDoStop_flag = value;
1.105 cvs 2794: }
1.116 cvs 2795:
1.69 cvs 2796: #endif /* AMAYA_JAVA */
1.77 cvs 2797:
1.116 cvs 2798: /*
2799: end of Module query.c
2800: */
1.140 cvs 2801:
2802:
2803:
2804:
2805:
2806:
1.17 cvs 2807:
2808:
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