Annotation of Amaya/amaya/query.c, revision 1.158
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;
284: HTEncoding enc;
285: HTEncoding cte;
286: HTLanguage lang;
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 ||
1.116 cvs 919: #ifdef AMAYA_WWW_CACHE
920: /* what status to use to know we're downloading from a cache? */
921: status == HT_NOT_MODIFIED ||
922: #endif /* AMAYA_WWW_CACHE */
1.79 cvs 923: me->reqStatus == HT_ABORT)
1.74 cvs 924: error_flag = FALSE;
1.13 cvs 925: else
1.74 cvs 926: error_flag = TRUE;
1.130 cvs 927:
1.4 cvs 928: /* output any errors from the server */
1.130 cvs 929:
1.77 cvs 930: /*
1.74 cvs 931: ** me->output = output file which will receive an html file
932: ** me->error_html = yes, output HTML errors in the screen
933: ** request->error_stack == if there are any errors, they will be here
934: ** me->error_stream_size If it's != 0 means an error message has already
935: ** been written to the stack
936: */
937:
1.4 cvs 938: /* First, we verify if there are any errors and if they are not
1.17 cvs 939: ** yet written to the error stack. If no, then let's try to write them
940: ** ourselves
941: */
1.74 cvs 942:
943: #ifdef DEBUG_LIBWWW
944: fprintf (stderr, "terminate_handler: URL is "
945: "%s, closing FILE %p status is %d\n", me->urlName, me->output,
946: status);
1.69 cvs 947: #endif
1.74 cvs 948:
1.69 cvs 949: if (me->output && me->output != stdout)
950: {
1.74 cvs 951: /* we are writing to a file */
952: if (me->reqStatus != HT_ABORT)
953: { /* if the request was not aborted and */
1.80 cvs 954: if (error_flag &&
955: me->error_html == TRUE)
956: /* there were some errors and we want to print them */
957: {
958: if (me->error_stream_size == 0)/* and the stream is empty */
959: AHTError_MemPrint (request); /* copy errors from
1.74 cvs 960: **the error stack
1.77 cvs 961: ** into the error stream */
1.80 cvs 962: if (me->error_stream)
963: { /* if the stream is non-empty */
964: fprintf (me->output, me->error_stream);/* output the errors */
1.85 cvs 965: /* Clear the error context, so that we can deal with
966: this answer as if it were a normal reply */
967: HTError_deleteAll( HTRequest_error (request));
968: HTRequest_setError (request, NULL);
969: error_flag = 0;
1.74 cvs 970: }
971: } /* if error_stack */
1.85 cvs 972: }
973:
974: /* if != HT_ABORT */
975:
976: #ifdef DEBUG_LIBWWW
977: fprintf (stderr, "terminate_handler: URL is %s, closing "
978: "FILE %p\n", me->urlName, me->output);
979: #endif
1.74 cvs 980: fclose (me->output);
981: me->output = NULL;
1.69 cvs 982: }
1.80 cvs 983:
984: if (error_flag)
985: me->reqStatus = HT_ERR;
986: else if (me->reqStatus != HT_ABORT)
987: me->reqStatus = HT_END;
1.151 cvs 988:
1.116 cvs 989: /* copy the content_type */
1.151 cvs 990: if (!me->content_type)
1.88 cvs 991: {
1.154 cvs 992: /* @@ should get this info from response */
993: if (request->anchor && request->anchor->content_type)
994: content_type = request->anchor->content_type->name;
995: else
996: content_type = "www/unknown";
997:
1.151 cvs 998: if (content_type && content_type [0] != EOS)
999: {
1000: /* libwww gives www/unknown when it gets an error. As this is
1001: an HTML test, we force the type to text/html */
1002: if (!strcmp (content_type, "www/unknown"))
1003: me->content_type = TtaStrdup ("text/html");
1004: else
1005: me->content_type = TtaStrdup (content_type);
1006:
1007: /* Content-Type can be specified by an httpd server's admin.
1008: To be on the safe side, we normalize its case */
1009: ConvertToLowerCase (me->content_type);
1010:
1.88 cvs 1011: #ifdef DEBUG_LIBWWW
1.151 cvs 1012: fprintf (stderr, "content type is: %s\n", me->content_type);
1.88 cvs 1013: #endif /* DEBUG_LIBWWW */
1.151 cvs 1014: }
1015: }
1.114 cvs 1016:
1.115 cvs 1017: /* to avoid a hangup while downloading css files */
1.140 cvs 1018: if (AmayaAlive_flag && (me->mode & AMAYA_LOAD_CSS))
1.116 cvs 1019: TtaSetStatus (me->docid, 1,
1020: TtaGetMessage (AMAYA, AM_ELEMENT_LOADED),
1021: me->status_urlName);
1022:
1023: /* don't remove or Xt will hang up during the PUT */
1024: if (AmayaIsAlive () && ((me->method == METHOD_POST) ||
1025: (me->method == METHOD_PUT)))
1.7 cvs 1026: {
1.80 cvs 1027: PrintTerminateStatus (me, status);
1028: }
1.114 cvs 1029:
1.111 cvs 1030: ProcessTerminateRequest (request, response, context, status);
1.116 cvs 1031:
1.151 cvs 1032: /* stop here */
1.150 cvs 1033: return HT_ERROR;
1.4 cvs 1034: }
1035:
1.5 cvs 1036: /*----------------------------------------------------------------------
1.17 cvs 1037: AHTLoadTerminate_handler
1.74 cvs 1038: this is an application "AFTER" Callback. It's called by the library
1039: when a request has ended, so that we can setup the correct status.
1.5 cvs 1040: ----------------------------------------------------------------------*/
1.4 cvs 1041:
1042: #ifdef __STDC__
1.111 cvs 1043: int AHTLoadTerminate_handler (HTRequest * request, HTResponse * response, void *param, int status)
1.4 cvs 1044: #else
1.111 cvs 1045: int AHTLoadTerminate_handler (request, response, param, status)
1.4 cvs 1046: HTRequest *request;
1047: HTResponse *response;
1048: void *param;
1049: int status;
1.69 cvs 1050:
1.4 cvs 1051: #endif
1052: {
1.116 cvs 1053:
1054: /** @@@@ use this with printstatus ?? */
1055:
1.4 cvs 1056: AHTReqContext *me = HTRequest_context (request);
1057: HTAlertCallback *cbf;
1058: AHTDocId_Status *docid_status;
1059:
1.7 cvs 1060: switch (status)
1.116 cvs 1061: {
1062: case HT_LOADED:
1063: if (PROT_TRACE)
1064: HTTrace ("Load End.... OK: `%s\' has been accessed\n",
1065: me->status_urlName);
1.4 cvs 1066:
1.116 cvs 1067: docid_status = GetDocIdStatus (me->docid,
1068: Amaya->docid_status);
1.7 cvs 1069:
1.116 cvs 1070: if (docid_status != NULL && docid_status->counter > 1)
1071: TtaSetStatus (me->docid, 1,
1072: TtaGetMessage (AMAYA, AM_ELEMENT_LOADED),
1.74 cvs 1073: me->status_urlName);
1.7 cvs 1074: break;
1.116 cvs 1075:
1076: case HT_NO_DATA:
1077: if (PROT_TRACE)
1078: HTTrace ("Load End.... OK BUT NO DATA: `%s\'\n",
1079: me->status_urlName);
1080: TtaSetStatus (me->docid, 1,
1081: TtaGetMessage (AMAYA, AM_LOADED_NO_DATA),
1082: me->status_urlName);
1083: break;
1084:
1085: case HT_INTERRUPTED:
1086: if (PROT_TRACE)
1087: HTTrace ("Load End.... INTERRUPTED: `%s\'\n",
1088: me->status_urlName);
1089: TtaSetStatus (me->docid, 1,
1090: TtaGetMessage (AMAYA, AM_LOAD_ABORT),
1091: NULL);
1092: break;
1.7 cvs 1093:
1.116 cvs 1094: case HT_RETRY:
1095: if (PROT_TRACE)
1096: HTTrace ("Load End.... NOT AVAILABLE, RETRY AT %ld\n",
1097: HTResponse_retryTime (response));
1098: TtaSetStatus (me->docid, 1,
1099: TtaGetMessage (AMAYA, AM_NOT_AVAILABLE_RETRY),
1100: me->status_urlName);
1101: break;
1.7 cvs 1102:
1.116 cvs 1103: case HT_ERROR:
1104: cbf = HTAlert_find (HT_A_MESSAGE);
1105: if (cbf)
1106: (*cbf) (request, HT_A_MESSAGE, HT_MSG_NULL, NULL,
1107: HTRequest_error (request), NULL);
1108: break;
1109:
1110: if (PROT_TRACE)
1111: HTTrace ("Load End.... ERROR: Can't access `%s\'\n",
1112: me->status_urlName ? me->status_urlName :"<UNKNOWN>");
1113: TtaSetStatus (me->docid, 1,
1114: TtaGetMessage (AMAYA, AM_CANNOT_LOAD),
1115: me->status_urlName ? me->status_urlName : "<UNKNOWN>");
1116: break;
1117: default:
1118: if (PROT_TRACE)
1119: HTTrace ("Load End.... UNKNOWN RETURN CODE %d\n", status);
1120: break;
1121: }
1122:
1123: return HT_OK;
1124: }
1.7 cvs 1125:
1.116 cvs 1126: #ifdef DEBUG_LIBWWW
1127: static int LineTrace (const char * fmt, va_list pArgs)
1128: {
1129: return (vfprintf(stderr, fmt, pArgs));
1.4 cvs 1130: }
1.116 cvs 1131: #endif DEBUG_LIBWWW
1.4 cvs 1132:
1.27 cvs 1133: /*----------------------------------------------------------------------
1134: AHTAcceptTypesInit
1.74 cvs 1135: This function prepares the Accept header used by Amaya during
1136: the HTTP content negotiation phase
1.27 cvs 1137: ----------------------------------------------------------------------*/
1138: #ifdef __STDC__
1139: static void AHTAcceptTypesInit (HTList *c)
1140: #else /* __STDC__ */
1141: static void AHTAcceptTypesInit (c)
1142: HTList *c;
1143: #endif /* __STDC__ */
1144: {
1145: if (c == (HTList *) NULL)
1146: return;
1147:
1148: /* define here all the mime types that Amaya can accept */
1149:
1.74 cvs 1150: HTConversion_add (c, "image/png", "www/present",
1151: HTThroughLine, 1.0, 0.0, 0.0);
1152: HTConversion_add (c, "image/jpeg", "www/present",
1153: HTThroughLine, 1.0, 0.0, 0.0);
1154: HTConversion_add (c, "image/gif", "www/present",
1155: HTThroughLine, 1.0, 0.0, 0.0);
1156: HTConversion_add (c, "image/xbm", "www/present",
1157: HTThroughLine, 1.0, 0.0, 0.0);
1158: HTConversion_add (c, "image/xpm", "www/present",
1159: HTThroughLine, 1.0, 0.0, 0.0);
1160: HTConversion_add (c, "application/postscript",
1161: "www/present", HTThroughLine, 1.0, 0.0, 0.0);
1.4 cvs 1162:
1.27 cvs 1163: /* Define here the equivalences between MIME types and file extensions for
1164: the types that Amaya can display */
1165:
1166: /* Register the default set of file suffix bindings */
1167: HTFileInit ();
1168:
1169: /* Don't do any case distinction */
1170: HTBind_caseSensitive (FALSE);
1171: }
1.4 cvs 1172:
1.5 cvs 1173: /*----------------------------------------------------------------------
1.17 cvs 1174: AHTConverterInit
1175: Bindings between a source media type and a destination media type
1176: (conversion).
1.5 cvs 1177: ----------------------------------------------------------------------*/
1.15 cvs 1178: #ifdef __STDC__
1179: static void AHTConverterInit (HTList *c)
1180: #else /* __STDC__ */
1181: static void AHTConverterInit (c)
1182: HTList *c;
1183: #endif /* __STDC__ */
1.4 cvs 1184: {
1185:
1186: /* Handler for custom http error messages */
1.7 cvs 1187: HTConversion_add (c, "*/*", "www/debug", AHTMemConverter, 1.0, 0.0, 0.0);
1.4 cvs 1188:
1189: /*
1190: ** These are converters that converts to something other than www/present,
1191: ** that is not directly outputting someting to the user on the screen
1192: */
1193:
1.116 cvs 1194: HTConversion_add (c, "message/rfc822", "*/*", HTMIMEConvert,
1195: 1.0, 0.0, 0.0);
1.4 cvs 1196: HTConversion_add (c, "message/x-rfc822-foot", "*/*", HTMIMEFooter,
1197: 1.0, 0.0, 0.0);
1198: HTConversion_add (c, "message/x-rfc822-head", "*/*", HTMIMEHeader,
1199: 1.0, 0.0, 0.0);
1.116 cvs 1200: HTConversion_add(c,"message/x-rfc822-cont", "*/*", HTMIMEContinue,
1201: 1.0, 0.0, 0.0);
1202: HTConversion_add(c,"message/x-rfc822-partial","*/*", HTMIMEPartial,
1203: 1.0, 0.0, 0.0);
1.4 cvs 1204: HTConversion_add (c, "multipart/*", "*/*", HTBoundary,
1205: 1.0, 0.0, 0.0);
1206: HTConversion_add (c, "text/plain", "text/html", HTPlainToHTML,
1207: 1.0, 0.0, 0.0);
1208:
1209: /*
1.116 cvs 1210: ** The following conversions are converting ASCII output from various
1211: ** protocols to HTML objects.
1212: */
1.4 cvs 1213: HTConversion_add (c, "text/x-http", "*/*", HTTPStatus_new,
1214: 1.0, 0.0, 0.0);
1215:
1216: /*
1.116 cvs 1217: ** We also register a special content type guess stream that can figure out
1218: ** the content type by reading the first bytes of the stream
1219: */
1.4 cvs 1220: HTConversion_add (c, "www/unknown", "*/*", HTGuess_new,
1221: 1.0, 0.0, 0.0);
1222:
1.116 cvs 1223: #ifdef AMAYA_WWW_CACHE
1.4 cvs 1224: /*
1.116 cvs 1225: ** Register a persistent cache stream which can save an object to local
1226: ** file
1227: */
1.4 cvs 1228: HTConversion_add (c, "www/cache", "*/*", HTCacheWriter,
1229: 1.0, 0.0, 0.0);
1.116 cvs 1230: HTConversion_add(c,"www/cache-append", "*/*", HTCacheAppend,
1231: 1.0, 0.0, 0.0);
1232: #endif AMAYA_WWW_CACHE
1.4 cvs 1233:
1234: /*
1.116 cvs 1235: ** This dumps all other formats to local disk without any further
1236: ** action taken
1237: */
1.4 cvs 1238: HTConversion_add (c, "*/*", "www/present", HTSaveLocally,
1239: 0.3, 0.0, 0.0);
1.116 cvs 1240:
1.4 cvs 1241: }
1242:
1.27 cvs 1243:
1.15 cvs 1244: /*----------------------------------------------------------------------
1.17 cvs 1245: AHTProtocolInit
1246: Registers all amaya supported protocols.
1.15 cvs 1247: ----------------------------------------------------------------------*/
1.4 cvs 1248: static void AHTProtocolInit (void)
1249: {
1.116 cvs 1250: char *strptr;
1.4 cvs 1251:
1.116 cvs 1252: /*
1253: NB. Preemptive == YES means Blocking requests
1254: Non-preemptive == NO means Non-blocking requests
1255: */
1256: HTTransport_add("tcp", HT_TP_SINGLE, HTReader_new, HTWriter_new);
1257: HTTransport_add("buffered_tcp", HT_TP_SINGLE, HTReader_new,
1258: HTBufferWriter_new);
1259: HTProtocol_add ("http", "buffered_tcp", HTTP_PORT, NO, HTLoadHTTP, NULL);
1.136 cvs 1260: #ifdef _WINDOWS
1261: HTProtocol_add ("file", "local", 0, YES, HTLoadFile, NULL);
1262: #else
1.116 cvs 1263: HTProtocol_add ("file", "local", 0, NO, HTLoadFile, NULL);
1.136 cvs 1264: #endif _WINDOWS
1.116 cvs 1265: #ifdef AMAYA_WWW_CACHE
1266: HTProtocol_add("cache", "local", 0, YES, HTLoadCache, NULL);
1267: #endif /* AMAYA_WWW_CACHE */
1.103 cvs 1268: #if 0 /* experimental code */
1.116 cvs 1269: HTProtocol_add ("ftp", "tcp", FTP_PORT, NO, HTLoadFTP, NULL);
1.17 cvs 1270: #endif
1.116 cvs 1271:
1272: /* initialize pipelining */
1.152 cvs 1273: strptr = (char *) TtaGetEnvString ("USE_PIPELINING");
1.116 cvs 1274: if (strptr && *strptr && strcasecmp (strptr,"yes" ))
1275: HTTP_setConnectionMode (HTTP_11_NO_PIPELINING);
1.4 cvs 1276: }
1277:
1.15 cvs 1278: /*----------------------------------------------------------------------
1.17 cvs 1279: AHTNetInit
1280: Reegisters "before" and "after" request filters.
1.15 cvs 1281: ----------------------------------------------------------------------*/
1.4 cvs 1282: static void AHTNetInit (void)
1283: {
1284:
1285: /* Register BEFORE filters
1.74 cvs 1286: ** The BEFORE filters handle proxies, caches, rule files etc.
1287: ** The filters are called in the order by which the are registered
1288: ** Not done automaticly - may be done by application!
1289: */
1.4 cvs 1290:
1.116 cvs 1291: #ifdef AMAYA_WWW_CACHE
1292: HTNet_addBefore (HTCacheFilter, "http://*", NULL, HT_FILTER_MIDDLE);
1293: #endif /* AMAYA_WWW_CACHE */
1294: HTNet_addBefore (HTCredentialsFilter, "http://*", NULL, HT_FILTER_LATE);
1295: HTNet_addBefore (HTProxyFilter, NULL, NULL, HT_FILTER_LATE);
1.85 cvs 1296: HTHost_setActivateRequestCallback (AHTOpen_file);
1.4 cvs 1297:
1298: /* register AFTER filters
1.74 cvs 1299: ** The AFTER filters handle error messages, logging, redirection,
1300: ** authentication etc.
1301: ** The filters are called in the order by which the are registered
1302: ** Not done automaticly - may be done by application!
1303: */
1.4 cvs 1304:
1.116 cvs 1305: HTNet_addAfter (HTAuthFilter, "http://*", NULL, HT_NO_ACCESS,
1306: HT_FILTER_MIDDLE);
1307: HTNet_addAfter(HTAuthFilter, "http://*", NULL, HT_REAUTH,
1308: HT_FILTER_MIDDLE);
1309: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_PERM_REDIRECT,
1310: HT_FILTER_MIDDLE);
1311: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_FOUND,
1312: HT_FILTER_MIDDLE);
1313: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_SEE_OTHER,
1314: HT_FILTER_MIDDLE);
1315: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_TEMP_REDIRECT,
1316: HT_FILTER_MIDDLE);
1317: HTNet_addAfter (HTUseProxyFilter, "http://*", NULL, HT_USE_PROXY,
1318: HT_FILTER_MIDDLE);
1319: #ifdef AMAYA_WWW_CACHE
1320: HTNet_addAfter (HTCacheUpdateFilter, "http://*", NULL, HT_NOT_MODIFIED,
1321: HT_FILTER_MIDDLE);
1322: #endif /* AMAYA_WWW_CACHE */
1.151 cvs 1323: #ifdef AMAYA_LOST_UPDATE
1324: HTNet_addAfter (precondition_handler, NULL, NULL, HT_PRECONDITION_FAILED,
1325: HT_FILTER_MIDDLE);
1326: #endif /* AMAYA_LOST_UPDATE */
1.111 cvs 1327: #ifndef _WINDOWS
1.116 cvs 1328: HTNet_addAfter (AHTLoadTerminate_handler, NULL, NULL, HT_ALL,
1329: HT_FILTER_LAST);
1.111 cvs 1330: #endif /* !_WINDOWS */
1.116 cvs 1331: /**** for later ?? ****/
1332: /* HTNet_addAfter(HTInfoFilter, NULL, NULL, HT_ALL, HT_FILTER_LATE); */
1.51 cvs 1333: /* handles all errors */
1.116 cvs 1334: HTNet_addAfter (terminate_handler, NULL, NULL, HT_ALL, HT_FILTER_LAST);
1.4 cvs 1335: }
1336:
1.15 cvs 1337: /*----------------------------------------------------------------------
1.17 cvs 1338: AHTAlertInit
1339: Register alert messages and their callbacks.
1.15 cvs 1340: ----------------------------------------------------------------------*/
1341: #ifdef __STDC__
1342: static void AHTAlertInit (void)
1343: #else
1344: static void AHTAlertInit ()
1345: #endif
1346: {
1347: HTAlert_add (AHTProgress, HT_A_PROGRESS);
1.120 cvs 1348: #ifdef __WINDOWS
1.70 cvs 1349: HTAlert_add ((HTAlertCallback *) WIN_Activate_Request, HT_PROG_CONNECT);
1.116 cvs 1350: #endif /* _WINDOWS */
1.15 cvs 1351: HTAlert_add (AHTError_print, HT_A_MESSAGE);
1.48 cvs 1352: HTError_setShow (~((unsigned int) 0 ) & ~((unsigned int) HT_ERR_SHOW_DEBUG)); /* process all messages except debug ones*/
1.15 cvs 1353: HTAlert_add (AHTConfirm, HT_A_CONFIRM);
1354: HTAlert_add (AHTPrompt, HT_A_PROMPT);
1355: HTAlert_add (AHTPromptUsernameAndPassword, HT_A_USER_PW);
1.116 cvs 1356: }
1357:
1.128 cvs 1358: /*----------------------------------------------------------------------
1359: libwww_CleanCache
1360: frontend to the recursive cache cleaning function
1361: ----------------------------------------------------------------------*/
1362: #ifdef __STDC__
1363: void libwww_CleanCache (void)
1364: #else
1365: void libwww_CleanCache ()
1366: Document doc;
1367: View view;
1368: #endif /* __STDC__ */
1369: {
1.130 cvs 1370: #ifdef AMAYA_WWW_CACHE
1.128 cvs 1371: char *strptr;
1372: char *cache_dir;
1373: int cache_size;
1.130 cvs 1374:
1.128 cvs 1375: if (!HTCacheMode_enabled ())
1376: /* don't do anything if we're not using a cache */
1377: return;
1378: /* temporarily close down the cache, purge it, then restart */
1.130 cvs 1379: cache_dir = TtaStrdup ( (char *) HTCacheMode_getRoot ());
1.128 cvs 1380: cache_size = HTCacheMode_maxSize ();
1.130 cvs 1381: /* remove the concurrent cache lock */
1382: #ifdef DEBUG_LIBWWW
1383: fprintf (stderr, "Clearing the cache lock\n");
1384: #endif /* DEBUG_LIBWWW */
1385: clear_cachelock ();
1.128 cvs 1386: HTCacheTerminate ();
1.130 cvs 1387: HTCacheMode_setEnabled (NO);
1388: strptr = TtaGetMemory (strlen (cache_dir) + 20);
1.128 cvs 1389: strcpy (strptr, cache_dir);
1390: strcat (strptr, DIR_STR);
1391:
1392: RecCleanCache (strptr);
1393:
1.148 cvs 1394: HTCacheMode_setExpires (HT_EXPIRES_AUTO);
1.128 cvs 1395: HTCacheInit (cache_dir, cache_size);
1.130 cvs 1396: /* set a new concurrent cache lock */
1.132 cvs 1397: strcat (strptr, ".lock");
1.130 cvs 1398: if (set_cachelock (strptr) == -1)
1399: /* couldn't open the .lock file, so, we close the cache to
1400: be in the safe side */
1401: {
1402: #ifdef DEBUG_LIBWWW
1403: fprintf (stderr, "couldnt set the cache lock\n");
1404: #endif /* DEBUG_LIBWWW */
1405: HTCacheTerminate ();
1406: HTCacheMode_setEnabled (NO);
1407: }
1408: #ifdef DEBUG_LIBWWW
1409: fprintf (stderr, "set a cache lock\n");
1410: #endif /* DEBUG_LIBWWW */
1411: TtaFreeMemory (strptr);
1.128 cvs 1412: TtaFreeMemory (cache_dir);
1413: #endif /* AMAYA_WWW_CACHE */
1414: }
1415:
1.118 cvs 1416: #ifdef AMAYA_WWW_CACHE
1417: /*----------------------------------------------------------------------
1.128 cvs 1418: RecCleanCache
1.118 cvs 1419: Clears an existing cache directory
1420: ----------------------------------------------------------------------*/
1421: #ifdef __STDC__
1.128 cvs 1422: static void RecCleanCache (char *dirname)
1.118 cvs 1423: #else
1.128 cvs 1424: static void RecCleanCache (char *dirname)
1425: Document doc;
1426: View view;
1.118 cvs 1427: #endif /* __STDC__ */
1.128 cvs 1428:
1429: #ifdef _WINDOWS
1430: {
1431: HANDLE hFindFile;
1432: boolean status;
1433: WIN32_FIND_DATA ffd;
1434:
1435: char t_dir [MAX_LENGTH];
1.130 cvs 1436: char *ptr;
1.128 cvs 1437:
1.130 cvs 1438: /* create a t_dir name to start searching for files */
1.128 cvs 1439: if ((strlen (dirname) + 10) > MAX_LENGTH)
1440: /* ERROR: directory name is too big */
1441: return;
1442:
1443: strcpy (t_dir, dirname);
1.130 cvs 1444: /* save the end of the dirname. We'll use it to make
1445: a complete pathname when erasing files */
1446: ptr = &t_dir[strlen (t_dir)];
1447: strcat (t_dir, "*");
1.128 cvs 1448:
1.130 cvs 1449: hFindFile = FindFirstFile (t_dir, &ffd);
1.128 cvs 1450:
1451: if (hFindFile == INVALID_HANDLE_VALUE)
1452: /* nothing to erase? */
1453: return;
1454:
1455: status = TRUE;
1.130 cvs 1456: while (status)
1457: {
1458: if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
1.133 cvs 1459: {
1460: /* it's a directory, erase it recursively */
1461: if (strcmp (ffd.cFileName, "..") && strcmp (ffd.cFileName, "."))
1462: {
1463: strcpy (ptr, ffd.cFileName);
1464: strcat (ptr, DIR_STR);
1465: RecCleanCache (t_dir);
1.137 cvs 1466: # ifdef _WINDOWS
1467: _rmdir (t_dir);
1468: # else /* !_WINDOWS */
1.133 cvs 1469: rmdir (t_dir);
1.137 cvs 1470: # endif /* _WINDOWS */
1.133 cvs 1471: }
1472: }
1473: else
1.130 cvs 1474: {
1.133 cvs 1475: /* it's a file, erase it */
1.130 cvs 1476: strcpy (ptr, ffd.cFileName);
1.133 cvs 1477: TtaFileUnlink (t_dir);
1.130 cvs 1478: }
1479: status = FindNextFile (hFindFile, &ffd);
1480: }
1.128 cvs 1481: FindClose (hFindFile);
1482: }
1483:
1484: #else /* _WINDOWS */
1.118 cvs 1485: {
1486: DIR *dp;
1487: struct stat st;
1488: #ifdef HAVE_DIRENT_H
1489: struct dirent *d;
1490: #else
1491: struct direct *d;
1492: #endif /* HAVE_DIRENT_H */
1.128 cvs 1493: char filename[BUFSIZ+1];
1.118 cvs 1494:
1495: if ((dp = opendir (dirname)) == NULL)
1496: {
1497: /* @@@ we couldn't open the directory ... we need some msg */
1498: perror (dirname);
1499: exit;
1500: }
1501:
1502: while ((d = readdir (dp)) != NULL)
1503: {
1504: /* skip the UNIX . and .. links */
1505: if (!strcmp (d->d_name, "..")
1506: || !strcmp (d->d_name, "."))
1507: continue;
1508:
1.128 cvs 1509: sprintf (filename, "%s"DIR_STR"%s", dirname, d->d_name);
1.118 cvs 1510: if (lstat (filename, &st) < 0 )
1511: {
1512: /* @@2 need some error message */
1513: perror (filename);
1514: continue;
1515: }
1516:
1517: switch (st.st_mode & S_IFMT)
1518: {
1519: case S_IFDIR:
1520: /* if we find a directory, we erase it, recursively */
1.128 cvs 1521: strcat (filename, DIR_STR);
1522: RecCleanCache (filename);
1523: rmdir (filename);
1.118 cvs 1524: break;
1525: case S_IFLNK:
1526: /* skip any links we find */
1527: continue;
1528: break;
1529: default:
1530: /* erase the filename */
1531: TtaFileUnlink (filename);
1532: break;
1533: }
1534: }
1535: closedir (dp);
1536: }
1.128 cvs 1537: #endif /* _WINDOWS */
1.118 cvs 1538: #endif /* AMAYA_WWW_CACHE */
1539:
1.116 cvs 1540: /*----------------------------------------------------------------------
1541: CacheInit
1542: Reads the cache settings from the thot.ini file.
1543: ----------------------------------------------------------------------*/
1.118 cvs 1544: #ifdef __STDC__
1.116 cvs 1545: static void CacheInit (void)
1.118 cvs 1546: #else
1547: static void Cacheinit ()
1548: #endif
1549:
1.116 cvs 1550: {
1551: #ifndef AMAYA_WWW_CACHE
1552: HTCacheMode_setEnabled (NO);
1553:
1554: #else /* AMAYA_WWW_CACHE */
1555: char *strptr;
1556: char *cache_dir = NULL;
1.130 cvs 1557: char *cache_lockfile;
1558: int cache_size;
1559: boolean cache_enabled;
1560: boolean cache_locked;
1561:
1.116 cvs 1562: /* activate cache? */
1.152 cvs 1563: strptr = (char *) TtaGetEnvString ("USE_CACHE");
1564: if (strptr && *strptr && strcasecmp (strptr, "yes" ))
1.130 cvs 1565: cache_enabled = NO;
1.116 cvs 1566: else
1.130 cvs 1567: cache_enabled = YES;
1.116 cvs 1568:
1.151 cvs 1569: /* cache protected documents? */
1.152 cvs 1570: strptr = (char *) TtaGetEnvString ("CACHE_PROTECTED_DOCS");
1571: if (strptr && *strptr && !strcasecmp (strptr, "yes" ))
1.151 cvs 1572: HTCacheMode_setProtected (YES);
1573: else
1574: HTCacheMode_setProtected (NO);
1575:
1.116 cvs 1576: /* get the cache dir (or use a default one) */
1577: strptr = (char *) TtaGetEnvString ("CACHE_DIR");
1578: if (strptr && *strptr)
1579: {
1580: cache_dir = TtaGetMemory (strlen (strptr) + strlen (CACHE_DIR_NAME) + 1);
1581: strcpy (cache_dir, strptr);
1582: }
1583: else
1584: {
1.122 cvs 1585: cache_dir = TtaGetMemory (strlen (TempFileDirectory)
1.116 cvs 1586: + strlen (CACHE_DIR_NAME) + 1);
1.122 cvs 1587: strcpy (cache_dir, TempFileDirectory);
1.116 cvs 1588: }
1589: strcat (cache_dir, CACHE_DIR_NAME);
1590:
1591: /* get the cache size (or use a default one) */
1592: strptr = (char *) TtaGetEnvString ("CACHE_SIZE");
1593: if (strptr && *strptr)
1594: cache_size = atoi (strptr);
1595: else
1596: cache_size = DEFAULT_CACHE_SIZE;
1597:
1.130 cvs 1598: if (cache_enabled)
1.116 cvs 1599: {
1600: /* how to remove the lock? force remove it? */
1.130 cvs 1601: cache_lockfile = TtaGetMemory (strlen (cache_dir) + 20);
1602: strcpy (cache_lockfile, cache_dir);
1603: strcat (cache_lockfile, DIR_STR".lock");
1604: cache_locked = FALSE;
1605: if (TtaFileExist (cache_lockfile)
1606: && !(cache_locked = test_cachelock (cache_lockfile)))
1.116 cvs 1607: {
1.130 cvs 1608: #ifdef DEBUG_LIBWWW
1609: fprintf (stderr, "found a stale cache, removing it\n");
1610: #endif /* DEBUG_LIBWWW */
1611: /* remove the lock and clean the cache (the clean cache
1612: will remove all, making the following call unnecessary */
1613: /* little trick to win some memory */
1614: strptr = strrchr (cache_lockfile, '.');
1615: *strptr = EOS;
1616: RecCleanCache (cache_lockfile);
1617: *strptr = '.';
1.116 cvs 1618: }
1619:
1.130 cvs 1620: if (!cache_locked)
1621: {
1622: /* initialize the cache if there's no other amaya
1623: instance running */
1624: HTCacheInit (cache_dir, cache_size);
1.148 cvs 1625: HTCacheMode_setExpires (HT_EXPIRES_AUTO);
1.130 cvs 1626: if (set_cachelock (cache_lockfile) == -1)
1627: /* couldn't open the .lock file, so, we close the cache to
1628: be in the safe side */
1629: {
1630: HTCacheTerminate ();
1631: HTCacheMode_setEnabled (NO);
1632: #ifdef DEBUG_LIBWWW
1633: fprintf (stderr, "couldnt set the cache lock\n");
1634: #endif /* DEBUG_LIBWWW */
1635: }
1636: #ifdef DEBUG_LIBWWW
1637: else
1638: fprintf (stderr, "created the cache lock\n");
1639: #endif /* DEBUG_LIBWWW */
1640: }
1641: else
1642: {
1643: HTCacheMode_setEnabled (NO);
1644: #ifdef DEBUG_LIBWWW
1645: fprintf (stderr, "lock detected, starting libwww without a cache/n");
1646: #endif /* DEBUG_LIBWWW */
1647: }
1648: TtaFreeMemory (cache_lockfile);
1.116 cvs 1649: }
1650: else
1651: HTCacheMode_setEnabled (NO);
1652:
1653: if (cache_dir)
1654: TtaFreeMemory (cache_dir);
1655: #endif /* AMAYA_WWW_CACHE */
1.15 cvs 1656: }
1657:
1658: /*----------------------------------------------------------------------
1.97 cvs 1659: ProxyInit
1660: Reads any proxies settings which may be declared as environmental
1661: variables or in the thot.ini file. The former overrides the latter.
1662: ----------------------------------------------------------------------*/
1.118 cvs 1663: #ifdef __STDC__
1.97 cvs 1664: static void ProxyInit (void)
1.118 cvs 1665: #else
1666: static void ProxyInit ()
1667: #endif /* __STDC__ */
1.97 cvs 1668: {
1669: char *strptr;
1670: char *str = NULL;
1671: char *name;
1672:
1673: /* get the proxy settings from the thot.ini file */
1674: strptr = (char *) TtaGetEnvString ("HTTP_PROXY");
1675: if (strptr && *strptr)
1676: HTProxy_add ("http", strptr);
1677: /* get the no_proxy settings from the thot.ini file */
1678: strptr = (char *) TtaGetEnvString ("NO_PROXY");
1679: if (strptr && *strptr)
1680: {
1681: str = TtaStrdup (strptr); /* Get copy we can mutilate */
1682: strptr = str;
1683: while ((name = HTNextField (&strptr)) != NULL) {
1684: char *portstr = strchr (name, ':');
1685: unsigned port=0;
1686: if (portstr) {
1687: *portstr++ = '\0';
1.116 cvs 1688: if (*portstr) port = (unsigned) atoi (portstr);
1.97 cvs 1689: }
1690: /* Register it for all access methods */
1691: HTNoProxy_add (name, NULL, port);
1692: }
1693: TtaFreeMemory (str);
1694: }
1695:
1696: /* use libw3's routine to get all proxy settings from the environment */
1697: HTProxy_getEnvVar ();
1698: }
1699:
1700:
1701: /*----------------------------------------------------------------------
1.17 cvs 1702: AHTProfile_newAmaya
1703: creates the Amaya client profile for libwww.
1.15 cvs 1704: ----------------------------------------------------------------------*/
1705: #ifdef __STDC__
1706: static void AHTProfile_newAmaya (char *AppName, char *AppVersion)
1707: #else /* __STDC__ */
1708: static void AHTProfile_newAmaya (AppName, AppVersion)
1709: char *AppName;
1710: char *AppVersion;
1711: #endif /* __STDC__ */
1.4 cvs 1712: {
1.158 ! cvs 1713: char * strptr;
! 1714:
1.4 cvs 1715: /* If the Library is not already initialized then do it */
1716: if (!HTLib_isInitialized ())
1717: HTLibInit (AppName, AppVersion);
1718:
1719: if (!converters)
1720: converters = HTList_new ();
1.27 cvs 1721: if (!acceptTypes)
1722: acceptTypes = HTList_new ();
1.151 cvs 1723: if (!transfer_encodings)
1724: transfer_encodings = HTList_new ();
1725: if (!content_encodings)
1726: content_encodings = HTList_new ();
1.4 cvs 1727:
1728: /* Register the default set of transport protocols */
1729: HTTransportInit ();
1730:
1731: /* Register the default set of application protocol modules */
1732: AHTProtocolInit ();
1733:
1.116 cvs 1734: /* Register the default set of messages and dialog functions */
1735: AHTAlertInit ();
1736: HTAlert_setInteractive (YES);
1737:
1738: #ifdef AMAYA_WWW_CACHE
1739: /* Enable the persistent cache */
1740: CacheInit ();
1741: #else
1742: HTCacheMode_setEnabled (NO);
1743: #endif /* AMAYA_WWW_CACHE */
1.4 cvs 1744:
1745: /* Register the default set of BEFORE and AFTER filters */
1746: AHTNetInit ();
1747:
1748: /* Set up the default set of Authentication schemes */
1749: HTAAInit ();
1.158 ! cvs 1750: /* activate MDA by defaul */
! 1751: strptr = (char *) TtaGetEnvString ("ENABLE_MDA");
! 1752: if (!strptr || (strptr && *strptr && strcasecmp (strptr, "no" )))
! 1753: HTAA_newModule ("digest", HTDigest_generate, HTDigest_parse,
! 1754: HTDigest_delete);
1.4 cvs 1755:
1.97 cvs 1756: /* Get any proxy settings */
1757: ProxyInit ();
1.4 cvs 1758:
1759: /* Register the default set of converters */
1760: AHTConverterInit (converters);
1.151 cvs 1761: HTFormat_setConversion (converters);
1.27 cvs 1762: AHTAcceptTypesInit (acceptTypes);
1.4 cvs 1763:
1764: /* Register the default set of transfer encoders and decoders */
1.151 cvs 1765: HTTransferEncoderInit (transfer_encodings);
1766: HTFormat_setTransferCoding(transfer_encodings);
1767:
1768: /* Register the default set of content encoders and decoders */
1769: HTContentEncoderInit(content_encodings);
1770: if (HTList_count(content_encodings) > 0)
1771: HTFormat_setContentCoding(content_encodings);
1772: else
1773: {
1774: HTList_delete(content_encodings);
1775: content_encodings = NULL;
1776: }
1.4 cvs 1777:
1778: /* Register the default set of MIME header parsers */
1.74 cvs 1779: HTMIMEInit (); /* must be called again for language selector */
1.4 cvs 1780:
1781: /* Register the default set of Icons for directory listings */
1.27 cvs 1782: /*HTIconInit(NULL); *//* experimental */
1.4 cvs 1783: }
1784:
1.5 cvs 1785: /*----------------------------------------------------------------------
1.17 cvs 1786: AHTProfile_delete
1787: deletes the Amaya client profile.
1.5 cvs 1788: ----------------------------------------------------------------------*/
1.4 cvs 1789: #ifdef __STDC__
1790: static void AHTProfile_delete (void)
1791: #else
1792: static void AHTProfile_delete ()
1.7 cvs 1793: #endif /* __STDC__ */
1.4 cvs 1794: {
1.22 cvs 1795:
1796: /* free the Amaya global context */
1.151 cvs 1797:
1798: /* Clean up all the registred converters */
1799: HTFormat_deleteAll ();
1800: if (acceptTypes)
1.74 cvs 1801: HTConversion_deleteAll (acceptTypes);
1.151 cvs 1802:
1.74 cvs 1803: HTList_delete (Amaya->docid_status);
1804: HTList_delete (Amaya->reqlist);
1805: TtaFreeMemory (Amaya);
1.61 cvs 1806:
1.151 cvs 1807: if (HTLib_isInitialized ())
1.74 cvs 1808:
1.120 cvs 1809: #ifdef _WINDOWS
1.151 cvs 1810: HTEventTerminate ();
1.120 cvs 1811: #endif _WINDOWS;
1.74 cvs 1812:
1.151 cvs 1813: /* Clean up the persistent cache (if any) */
1.116 cvs 1814: #ifdef AMAYA_WWW_CACHE
1.151 cvs 1815: clear_cachelock ();
1816: HTCacheTerminate ();
1.116 cvs 1817: #endif /* AMAYA_WWW_CACHE */
1.74 cvs 1818:
1.151 cvs 1819: /* Terminate libwww */
1820: HTLibTerminate ();
1.4 cvs 1821: }
1822:
1.5 cvs 1823: /*----------------------------------------------------------------------
1.116 cvs 1824: AmayacontextInit
1825: initializes an internal Amaya context for our libwww interface
1826: ----------------------------------------------------------------------*/
1827: #ifdef __STDC__
1828: static void AmayaContextInit ()
1829: #else
1830: static void AmayaContextInit ()
1831: #endif
1832:
1833: {
1.140 cvs 1834: AmayaAlive_flag = TRUE;
1.116 cvs 1835: /* Initialization of the global context */
1836: Amaya = (AmayaContext *) TtaGetMemory (sizeof (AmayaContext));
1837: Amaya->reqlist = HTList_new ();
1838: Amaya->docid_status = HTList_new ();
1839: Amaya->open_requests = 0;
1840: }
1841:
1842: /*----------------------------------------------------------------------
1.17 cvs 1843: QueryInit
1844: initializes the libwww interface
1.5 cvs 1845: ----------------------------------------------------------------------*/
1.4 cvs 1846: #ifdef __STDC__
1847: void QueryInit ()
1848: #else
1849: void QueryInit ()
1850: #endif
1851: {
1.151 cvs 1852: char *strptr;
1853: int tmp_i;
1854: long tmp_l;
1.4 cvs 1855:
1.116 cvs 1856: AmayaContextInit ();
1.4 cvs 1857: AHTProfile_newAmaya (HTAppName, HTAppVersion);
1.140 cvs 1858: CanDoStop_set (TRUE);
1.4 cvs 1859:
1.116 cvs 1860: #ifdef _WINDOWS
1.125 cvs 1861: HTEventInit ();
1.116 cvs 1862: #endif /* _WINDOWS */
1.72 cvs 1863:
1.123 cvs 1864: #ifndef _WINDOWS
1.116 cvs 1865: HTEvent_setRegisterCallback ((void *) AHTEvent_register);
1866: HTEvent_setUnregisterCallback ((void *) AHTEvent_unregister);
1.120 cvs 1867: HTTimer_registerSetTimerCallback ((void *) AMAYA_SetTimer);
1868: HTTimer_registerDeleteTimerCallback ((void *) AMAYA_DeleteTimer);
1.116 cvs 1869: #endif /* !_WINDOWS */
1.148 cvs 1870:
1.152 cvs 1871: WWW_TraceFlag = CACHE_TRACE;
1.74 cvs 1872: #ifdef DEBUG_LIBWWW
1.116 cvs 1873: /* forwards error messages to our own function */
1874: WWW_TraceFlag = THD_TRACE;
1.138 cvs 1875: HTTrace_setCallback(LineTrace);
1.4 cvs 1876: /* Trace activation (for debugging) */
1.148 cvs 1877: /***
1.138 cvs 1878: WWW_TraceFlag = SHOW_CORE_TRACE | SHOW_THREAD_TRACE | SHOW_PROTOCOL_TRACE;
1879: WWW_TraceFlag |= 0xFFFFFFFFl;
1880: ***/
1.152 cvs 1881: #endif
1882:
1.148 cvs 1883: /* Setting up different network parameters */
1.151 cvs 1884:
1.148 cvs 1885: /* Maximum number of simultaneous open sockets */
1.151 cvs 1886: strptr = (char *) TtaGetEnvString ("MAX_SOCKET");
1887: if (strptr && *strptr)
1888: tmp_i = atoi (strptr);
1889: else
1890: tmp_i = DEFAULT_MAX_SOCKET;
1891: HTNet_setMaxSocket (tmp_i);
1892:
1.148 cvs 1893: /* different network services timeouts */
1.151 cvs 1894: /* dns timeout */
1895: strptr = (char *) TtaGetEnvString ("DNS_TIMEOUT");
1896: if (strptr && *strptr)
1897: tmp_i = atoi (strptr);
1898: else
1899: tmp_i = DEFAULT_DNS_TIMEOUT;
1900: HTDNS_setTimeout (tmp_i);
1901:
1902: /* persistent connections timeout */
1.152 cvs 1903: strptr = (char *) TtaGetEnvString ("PERSIST_CX_TIMEOUT");
1.151 cvs 1904: if (strptr && *strptr)
1905: tmp_l = atol (strptr);
1906: else
1907: tmp_l = DEFAULT_PERSIST_TIMEOUT;
1908: HTHost_setPersistTimeout (tmp_l);
1909:
1.148 cvs 1910: /* default timeout in ms */
1.151 cvs 1911: strptr = (char *) TtaGetEnvString ("NET_EVENT_TIMEOUT");
1912: if (strptr && *strptr)
1913: tmp_i = atoi (strptr);
1914: else
1915: tmp_i = DEFAULT_NET_EVENT_TIMEOUT;
1916: HTHost_setEventTimeout (tmp_i);
1917:
1.4 cvs 1918: #ifdef CATCH_SIG
1.148 cvs 1919: signal (SIGPIPE, SIG_IGN);
1.4 cvs 1920: #endif
1.15 cvs 1921: }
1922:
1923: /*----------------------------------------------------------------------
1.17 cvs 1924: LoopForStop
1.136 cvs 1925: a copy of the Thop event loop so we can handle the stop button in Unix
1926: and preemptive requests under Windows
1.15 cvs 1927: ----------------------------------------------------------------------*/
1928: #ifdef __STDC__
1929: static int LoopForStop (AHTReqContext * me)
1930: #else
1931: static int LoopForStop (AHTReqContext * me)
1932: #endif
1933: {
1.136 cvs 1934: #ifdef _WINDOWS
1935: MSG msg;
1936: unsigned long libwww_msg;
1937: HWND old_active_window, libwww_window;
1938: int status_req = HT_OK;
1939:
1940: old_active_window = GetActiveWindow ();
1941: libwww_window = HTEventList_getWinHandle (&libwww_msg);
1.137 cvs 1942:
1.149 cvs 1943: while (me->reqStatus != HT_END && me->reqStatus != HT_ERR
1944: && me->reqStatus != HT_ABORT && AmayaIsAlive () &&
1945: GetMessage (&msg, NULL, 0, 0))
1946: {
1947: if (msg.message != WM_QUIT)
1948: {
1949: TranslateMessage (&msg);
1950: DispatchMessage (&msg);
1951: }
1952: else
1953: break;
1954: }
1.136 cvs 1955: if (!AmayaIsAlive ())
1956: /* Amaya was killed by one of the callback handlers */
1957: exit (0);
1958: #else /* _WINDOWS */
1.25 cvs 1959: extern ThotAppContext app_cont;
1.51 cvs 1960: XEvent ev;
1961: XtInputMask status;
1.17 cvs 1962: int status_req = HT_OK;
1.15 cvs 1963:
1964: /* to test the async calls */
1.17 cvs 1965: /* Loop while waiting for new events, exists when the request is over */
1.15 cvs 1966: while (me->reqStatus != HT_ABORT &&
1967: me->reqStatus != HT_END &&
1.69 cvs 1968: me->reqStatus != HT_ERR) {
1.116 cvs 1969: if (!AmayaIsAlive ())
1.69 cvs 1970: /* Amaya was killed by one of the callback handlers */
1971: exit (0);
1972:
1973: status = XtAppPending (app_cont);
1.144 cvs 1974: if (status & XtIMXEvent)
1975: {
1976: XtAppNextEvent (app_cont, &ev);
1977: TtaHandleOneEvent (&ev);
1978: }
1979: else if (status != 0)
1980: XtAppProcessEvent (app_cont, XtIMAll);
1.69 cvs 1981: }
1.136 cvs 1982: #endif /* _WINDOWS */
1.69 cvs 1983: switch (me->reqStatus) {
1984: case HT_ERR:
1985: case HT_ABORT:
1.130 cvs 1986: status_req = NO;
1.15 cvs 1987: break;
1988:
1.69 cvs 1989: case HT_END:
1.130 cvs 1990: status_req = YES;
1.15 cvs 1991: break;
1992:
1.69 cvs 1993: default:
1.15 cvs 1994: break;
1.69 cvs 1995: }
1.15 cvs 1996: return (status_req);
1.4 cvs 1997: }
1998:
1.5 cvs 1999: /*----------------------------------------------------------------------
1.15 cvs 2000: QueryClose
1.21 cvs 2001: closes all existing threads, frees all non-automatically deallocated
2002: memory and then ends libwww.
1.5 cvs 2003: ----------------------------------------------------------------------*/
1.116 cvs 2004: void QueryClose ()
1.4 cvs 2005: {
1.24 cvs 2006:
1.140 cvs 2007: AmayaAlive_flag = FALSE;
1.24 cvs 2008:
1.116 cvs 2009: /* remove all the handlers and callbacks that may output a message to
2010: a non-existent Amaya window */
1.130 cvs 2011: #ifndef _WINDOWS
1.116 cvs 2012: HTNet_deleteAfter (AHTLoadTerminate_handler);
1.130 cvs 2013: #endif _WINDOWS
1.116 cvs 2014: HTNet_deleteAfter (redirection_handler);
2015: HTAlertCall_deleteAll (HTAlert_global () );
2016: HTAlert_setGlobal ((HTList *) NULL);
2017: HTEvent_setRegisterCallback ((HTEvent_registerCallback *) NULL);
2018: HTEvent_setUnregisterCallback ((HTEvent_unregisterCallback *) NULL);
2019: #ifndef _WINDOWS
2020: /** need to erase all existing timers too **/
2021: HTTimer_registerSetTimerCallback (NULL);
2022: HTTimer_registerDeleteTimerCallback (NULL);
2023: #endif /* !_WINDOWS */
2024: HTHost_setActivateRequestCallback (NULL);
2025: Thread_deleteAll ();
1.21 cvs 2026:
1.116 cvs 2027: HTProxy_deleteAll ();
2028: HTNoProxy_deleteAll ();
2029: HTGateway_deleteAll ();
2030: AHTProfile_delete ();
2031: }
2032:
2033: /*----------------------------------------------------------------------
2034: NextNameValue
2035: ---------------------------------------------------------------------*/
2036: #ifdef __STDC__
2037: static char * NextNameValue (char ** pstr, char **name, char **value)
2038: #else
2039: static char * NextNameValue (pstr, name, value);
2040: char ** pstr;
2041: char **name;
2042: char **value;
2043: #endif /* __STDC__ */
2044: {
2045: char * p = *pstr;
2046: char * start = NULL;
2047: if (!pstr || !*pstr) return NULL;
2048:
2049: if (!*p) {
2050: *pstr = p;
2051: *name = NULL;
2052: *value = NULL;
2053: return NULL; /* No field */
2054: }
2055:
2056: /* Now search for the next '&' and ';' delimitators */
2057: start = p;
2058: while (*p && *p != '&' && *p != ';') p++;
2059: if (*p)
2060: *p++ = '\0';
2061: *pstr = p;
2062:
2063: /* Search for the name and value */
2064: *name = start;
2065: p = start;
2066:
2067: while(*p && *p != '=')
2068: p++;
2069: if (*p)
2070: *p++ = '\0';
2071: *value = p;
2072:
2073: return start;
2074: }
2075:
2076: /*----------------------------------------------------------------------
2077: PrepareFormdata
2078: ---------------------------------------------------------------------*/
2079: #ifdef __STDC__
2080: static HTAssocList * PrepareFormdata (char *string)
2081: #else
2082: static HTAssocList * PrepareFormdata (string)
2083: char *string;
2084: #endif /* __STDC__ */
2085: {
2086: char * tmp_string, * tmp_string_ptr;
2087: char * name;
2088: char * value;
2089: HTAssocList * formdata;
2090:
2091: if (!string)
2092: return NULL;
2093:
2094: /* store the ptr in another variable, as the original address will
2095: change
2096: */
2097:
2098: tmp_string_ptr = tmp_string = TtaStrdup (string);
2099: formdata = HTAssocList_new();
2100:
2101: while (*tmp_string)
2102: {
2103: NextNameValue (&tmp_string, &name, &value);
2104: HTAssocList_addObject(formdata,
2105: name, value);
2106: }
2107:
2108: TtaFreeMemory (tmp_string_ptr);
2109: return formdata;
1.4 cvs 2110: }
2111:
1.99 cvs 2112:
2113: /*----------------------------------------------------------------------
2114: InvokeGetObjectWWW_callback
2115: A simple function to invoke a callback function whenever there's an error
2116: in GetObjectWWW
2117: ---------------------------------------------------------------------*/
2118:
1.116 cvs 2119: #ifdef __STDC__
2120: void InvokeGetObjectWWW_callback (int docid, char *urlName, char *outputfile, TTcbf *terminate_cbf, void *context_tcbf, int status)
1.99 cvs 2121: #else
1.111 cvs 2122: void InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf, context_tcbf, status)
1.99 cvs 2123: int docid;
2124: char *urlName;
2125: char *outputfile;
2126: TTcbf *terminate_cbf;
2127: void *context_tcbf;
1.116 cvs 2128: #endif /* __STDC__ */
1.99 cvs 2129: {
2130: if (!terminate_cbf)
2131: return;
2132:
1.116 cvs 2133: (*terminate_cbf) (docid, status, urlName, outputfile,
1.99 cvs 2134: NULL, context_tcbf);
2135: }
2136:
2137:
2138:
1.5 cvs 2139: /*----------------------------------------------------------------------
1.15 cvs 2140: GetObjectWWW
1.17 cvs 2141: this function requests a resource designated by a URLname into a
2142: temporary filename. The download can come from a simple GET operation,
2143: or can come from POSTING/GETTING a form. In the latter
2144: case, the function receives a query string to send to the server.
2145:
1.5 cvs 2146: 4 file retrieval modes are proposed:
2147: AMAYA_SYNC : blocking mode
2148: AMAYA_ISYNC : incremental, blocking mode
2149: AMAYA_ASYNC : non-blocking mode
2150: AMAYA_IASYNC : incremental, non-blocking mode
2151:
2152: In the incremental mode, each time a package arrives, it will be
2153: stored in the temporary file. In addition, if an
2154: incremental_callback function is defined, this function will be
2155: called and handled a copy of the newly received data package.
2156: Finally, if a terminate_callback function is defined, it will be
2157: invoked when the request terminates. The caller of this function
1.4 cvs 2158: can define two different contexts to be passed to the callback
2159: functions.
2160:
2161: When the function is called with the SYNC mode, the function will
2162: return only when the requested file has been loaded.
2163: The ASYNC mode will immediately return after setting up the
2164: call.
2165:
2166: Notes:
2167: At the end of a succesful request, the urlName string contains the
2168: name of the actually retrieved URL. As a URL can change over the time,
2169: (e.g., be redirected elsewhere), it is advised that the function
1.17 cvs 2170: caller verify the value of the urlName variable at the end of
1.4 cvs 2171: a request.
2172:
2173: Inputs:
2174: - docid Document identifier for the set of objects being
2175: retrieved.
2176: - urlName The URL to be retrieved (MAX_URL_LENGTH chars length)
2177: - outputfile A pointer to an empty string of MAX_URL_LENGTH.
2178: - mode The retrieval mode.
2179: - incremental_cbf
2180: - context_icbf
2181: Callback and context for the incremental modes
2182: - terminate_cbf
2183: - context_icbf
2184: Callback and context for a terminate handler
1.17 cvs 2185: -error_html if TRUE, then display any server error message as an
2186: HTML document.
1.88 cvs 2187: - content_type a string
2188:
1.4 cvs 2189: Outputs:
2190: - urlName The URL that was retrieved
2191: - outputfile The name of the temporary file which holds the
2192: retrieved data. (Only in case of success)
1.88 cvs 2193: - if content_type wasn't NULL, it will contain a copy of the parameter
2194: sent in the HTTP answer
1.4 cvs 2195: Returns:
2196: HT_ERROR
2197: HT_OK
1.5 cvs 2198:
2199: ----------------------------------------------------------------------*/
1.4 cvs 2200: #ifdef __STDC__
1.127 cvs 2201: int GetObjectWWW (int docid, char* urlName, char* formdata,
1.116 cvs 2202: char* outputfile, int mode, TIcbf* incremental_cbf,
2203: void* context_icbf, TTcbf* terminate_cbf,
1.88 cvs 2204: void* context_tcbf, boolean error_html, char *content_type)
1.4 cvs 2205: #else
1.127 cvs 2206: int GetObjectWWW (docid, urlName, formdata, outputfile, mode,
1.116 cvs 2207: incremental_cbf, context_icbf,
1.88 cvs 2208: terminate_cbf, context_tcbf, error_html, content_type)
1.73 cvs 2209: int docid;
2210: char *urlName;
1.127 cvs 2211: char *formdata;
1.73 cvs 2212: char *outputfile;
2213: int mode;
2214: TIcbf *incremental_cbf;
2215: void *context_icbf;
2216: TTcbf *terminate_cbf;
2217: void *context_tcbf;
2218: boolean error_html;
1.88 cvs 2219: char *content_type;
1.4 cvs 2220: #endif
2221: {
2222: AHTReqContext *me;
2223: char *ref;
1.107 cvs 2224: int status, l;
1.114 cvs 2225: int tempsubdir;
1.7 cvs 2226:
1.116 cvs 2227: if (urlName == NULL || docid == 0 || outputfile == NULL)
2228: {
2229: /* no file to be loaded */
2230: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_BAD_URL), urlName);
1.69 cvs 2231:
1.116 cvs 2232: if (error_html)
1.69 cvs 2233: /* so we can show the error message */
2234: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.116 cvs 2235: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
2236: context_tcbf, HT_ERROR);
2237: return HT_ERROR;
2238: }
1.7 cvs 2239:
1.4 cvs 2240: /* do we support this protocol? */
1.116 cvs 2241: if (IsValidProtocol (urlName) == NO)
2242: {
2243: /* return error */
2244: outputfile[0] = EOS; /* file could not be opened */
2245: TtaSetStatus (docid, 1,
2246: TtaGetMessage (AMAYA, AM_GET_UNSUPPORTED_PROTOCOL),
2247: urlName);
2248:
2249: if (error_html)
1.69 cvs 2250: /* so we can show the error message */
2251: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.116 cvs 2252: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
2253: context_tcbf, HT_ERROR);
2254: return HT_ERROR;
2255: }
1.4 cvs 2256:
1.114 cvs 2257: /* we store CSS in subdir named 0; all the other files go to a subidr
2258: named after their own docid */
2259:
2260: tempsubdir = (mode & AMAYA_LOAD_CSS) ? 0 : docid;
2261:
1.116 cvs 2262: /* create a tempfilename */
2263: sprintf (outputfile, "%s%c%d%c%04dAM",
2264: TempFileDirectory, DIR_SEP, tempsubdir, DIR_SEP, object_counter);
2265: /* update the object_counter (used for the tempfilename) */
1.4 cvs 2266: object_counter++;
1.116 cvs 2267:
1.4 cvs 2268: /* normalize the URL */
1.45 cvs 2269: ref = AmayaParseUrl (urlName, "", AMAYA_PARSE_ALL);
1.4 cvs 2270: /* should we abort the request if we could not normalize the url? */
1.69 cvs 2271: if (ref == (char*) NULL || ref[0] == EOS) {
2272: /*error */
2273: outputfile[0] = EOS;
2274: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_BAD_URL), urlName);
2275:
2276: if (error_html)
1.116 cvs 2277: /* so we can show the error message */
2278: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.99 cvs 2279: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
1.116 cvs 2280: context_tcbf, HT_ERROR);
1.69 cvs 2281: return HT_ERROR;
2282: }
1.116 cvs 2283:
1.4 cvs 2284: /* verify if that file name existed */
1.9 cvs 2285: if (TtaFileExist (outputfile))
1.77 cvs 2286: TtaFileUnlink (outputfile);
1.116 cvs 2287:
1.4 cvs 2288: /* Initialize the request structure */
2289: me = AHTReqContext_new (docid);
1.116 cvs 2290: if (me == NULL)
2291: {
2292: outputfile[0] = EOS;
2293: /* need an error message here */
2294: TtaFreeMemory (ref);
2295: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
2296: context_tcbf, HT_ERROR);
2297: return HT_ERROR;
2298: }
2299:
1.4 cvs 2300: /* Specific initializations for POST and GET */
1.116 cvs 2301: if (mode & AMAYA_FORM_POST)
2302: {
2303: me->method = METHOD_POST;
2304: HTRequest_setMethod (me->request, METHOD_POST);
2305: }
2306: else
2307: {
2308: me->method = METHOD_GET;
2309: if (!HasKnownFileSuffix (ref))
2310: HTRequest_setConversion(me->request, acceptTypes, TRUE);
2311: }
1.93 cvs 2312:
1.116 cvs 2313: /* Common initialization for all HTML methods */
1.4 cvs 2314: me->mode = mode;
2315: me->error_html = error_html;
2316: me->incremental_cbf = incremental_cbf;
2317: me->context_icbf = context_icbf;
2318: me->terminate_cbf = terminate_cbf;
2319: me->context_tcbf = context_tcbf;
1.64 cvs 2320:
1.69 cvs 2321: /* for the async. request modes, we need to have our
1.4 cvs 2322: own copy of outputfile and urlname
1.116 cvs 2323: */
1.4 cvs 2324:
1.116 cvs 2325: if ((mode & AMAYA_ASYNC) || (mode & AMAYA_IASYNC))
2326: {
2327: l = strlen (outputfile);
2328: if (l > MAX_LENGTH)
2329: me->outputfile = TtaGetMemory (l + 2);
2330: else
2331: me->outputfile = TtaGetMemory (MAX_LENGTH + 2);
2332: strcpy (me->outputfile, outputfile);
2333: l = strlen (urlName);
2334: if (l > MAX_LENGTH)
2335: me->urlName = TtaGetMemory (l + 2);
2336: else
2337: me->urlName = TtaGetMemory (MAX_LENGTH + 2);
2338: strcpy (me->urlName, urlName);
2339: #ifdef _WINDOWS
2340: /* force windows ASYNC requests to always be non preemptive */
2341: HTRequest_setPreemptive (me->request, NO);
2342: #endif /*_WINDOWS */
2343: } /* AMAYA_ASYNC mode */
2344: else
2345: #ifdef _WINDOWS
2346: {
2347: me->outputfile = outputfile;
2348: me->urlName = urlName;
2349: /* force windows SYNC requests to always be non preemptive */
2350: HTRequest_setPreemptive (me->request, YES);
2351: }
2352: #else /* !_WINDOWS */
2353: {
2354: me->outputfile = outputfile;
2355: me->urlName = urlName;
2356: }
2357: /***
1.136 cvs 2358: In order to take into account the stop button,
2359: the requests will be always asynchronous, however, if mode=AMAYA_SYNC,
1.57 cvs 2360: we will loop until the document has been received or a stop signal
2361: generated
1.77 cvs 2362: ****/
1.116 cvs 2363: HTRequest_setPreemptive (me->request, NO);
2364: #endif /* _WINDOWS */
1.61 cvs 2365:
1.151 cvs 2366: /*
2367: ** Make sure that the first request is flushed immediately and not
2368: ** buffered in the output buffer
2369: */
2370: if (mode & AMAYA_FLUSH_REQUEST)
2371: HTRequest_setFlush(me->request, YES);
2372: HTRequest_setFlush(me->request, YES);
2373:
1.61 cvs 2374: /* prepare the URLname that will be displayed in teh status bar */
2375: ChopURL (me->status_urlName, me->urlName);
1.77 cvs 2376: TtaSetStatus (me->docid, 1,
2377: TtaGetMessage (AMAYA, AM_FETCHING),
2378: me->status_urlName);
1.4 cvs 2379:
2380: me->anchor = (HTParentAnchor *) HTAnchor_findAddress (ref);
1.45 cvs 2381: TtaFreeMemory (ref);
1.4 cvs 2382:
1.114 cvs 2383: if (mode & AMAYA_NOCACHE)
1.116 cvs 2384: HTRequest_setReloadMode (me->request, HT_CACHE_FLUSH);
2385:
2386: /* prepare the query string and format for POST */
2387: if (mode & AMAYA_FORM_POST)
1.114 cvs 2388: {
1.116 cvs 2389: HTAnchor_setFormat ((HTParentAnchor *) me->anchor,
2390: HTAtom_for ("application/x-www-form-urlencoded"));
2391: HTAnchor_setLength ((HTParentAnchor *) me->anchor, me->block_size);
2392: HTRequest_setEntityAnchor (me->request, me->anchor);
2393: }
1.114 cvs 2394:
1.127 cvs 2395: /* create the formdata element for libwww */
2396: if (formdata)
2397: me->formdata = PrepareFormdata (formdata);
2398:
1.116 cvs 2399: /* do the request */
2400: if (mode & AMAYA_FORM_POST)
1.119 cvs 2401: {
2402: /* this call doesn't give back a boolean */
2403: HTParentAnchor * posted = NULL;
2404:
2405: posted = HTPostFormAnchor (me->formdata, (HTAnchor *) me->anchor,
2406: me->request);
2407: status = posted ? YES : NO;
2408: }
1.127 cvs 2409: else if (formdata)
2410: status = HTGetFormAnchor(me->formdata, (HTAnchor *) me->anchor,
2411: me->request);
1.116 cvs 2412: else
1.77 cvs 2413: status = HTLoadAnchor ((HTAnchor *) me->anchor, me->request);
1.69 cvs 2414:
1.123 cvs 2415: /* @@@ may need some special windows error msg here */
1.116 cvs 2416: /* control the errors */
1.4 cvs 2417:
1.130 cvs 2418: if (status == NO)
1.116 cvs 2419: /* the request invocation failed */
2420: {
2421: /* show an error message on the status bar */
2422: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
2423: TtaSetStatus (docid, 1,
2424: TtaGetMessage (AMAYA, AM_CANNOT_LOAD),
2425: urlName);
2426: if (me->reqStatus == HT_NEW)
2427: /* manually invoke the last processing that usually gets done
2428: in a succesful request */
2429: InvokeGetObjectWWW_callback (docid, urlName, outputfile,
2430: terminate_cbf, context_tcbf, HT_ERROR);
2431: /* terminate_handler wasn't called */
1.136 cvs 2432: AHTReqContext_delete (me);
1.116 cvs 2433: }
2434: else
1.136 cvs 2435: /* end treatment for SYNC requests */
1.120 cvs 2436: if ((mode & AMAYA_SYNC) || (mode & AMAYA_ISYNC))
2437: {
1.136 cvs 2438: /* wait here untilt the asynchronous request finishes */
1.130 cvs 2439: status = LoopForStop (me);
1.136 cvs 2440: /* if status returns HT_ERROR, should we invoke the callback? */
1.120 cvs 2441: if (!HTRequest_kill (me->request))
2442: AHTReqContext_delete (me);
2443: }
1.130 cvs 2444:
1.136 cvs 2445: /* an interface problem!!! */
2446: return (status == YES ? 0 : -1);
1.4 cvs 2447: }
2448:
1.5 cvs 2449: /*----------------------------------------------------------------------
1.17 cvs 2450: PutObjectWWW
2451: frontend for uploading a resource to a URL. This function downloads
2452: a file to be uploaded into memory, it then calls UploadMemWWW to
2453: finish the job.
2454:
1.5 cvs 2455: 2 upload modes are proposed:
2456: AMAYA_SYNC : blocking mode
2457: AMAYA_ASYNC : non-blocking mode
2458:
1.4 cvs 2459: When the function is called with the SYNC mode, the function will
2460: return only when the file has been uploaded.
2461: The ASYNC mode will immediately return after setting up the
2462: call. Furthermore, at the end of an upload, the ASYNC mode will
2463: call back terminate_cbf, handling it the context defined in
2464: context_tcbf.
2465:
2466: Notes:
2467: At the end of a succesful request, the urlName string contains the
2468: name of the actually uploaded URL. As a URL can change over the time,
2469: (e.g., be redirected elsewhere), it is advised that the function
2470: caller verifies the value of the urlName variable at the end of
2471: a request.
2472:
2473: Inputs:
2474: - docid Document identifier for the set of objects being
2475: retrieved.
2476: - fileName A pointer to the local file to upload
2477: - urlName The URL to be uploaded (MAX_URL_LENGTH chars length)
2478: - mode The retrieval mode.
2479: - terminate_cbf
2480: - context_icbf
2481: Callback and context for a terminate handler
2482:
2483: Outputs:
2484: - urlName The URL that was uploaded
2485:
2486: Returns:
2487: HT_ERROR
2488: HT_OK
1.5 cvs 2489: ----------------------------------------------------------------------*/
1.4 cvs 2490: #ifdef __STDC__
1.27 cvs 2491: int PutObjectWWW (int docid, char *fileName, char *urlName, int mode, PicType contentType,
1.4 cvs 2492: TTcbf * terminate_cbf, void *context_tcbf)
2493: #else
1.26 cvs 2494: int PutObjectWWW (docid, urlName, fileName, mode, contentType,
1.4 cvs 2495: ,terminate_cbf, context_tcbf)
2496: int docid;
2497: char *urlName;
2498: char *fileName;
2499: int mode;
1.27 cvs 2500: PicType contentType;
1.4 cvs 2501: TTcbf *terminate_cbf;
2502: void *context_tcbf;
2503:
1.116 cvs 2504: #endif /* __STDC__ */
1.4 cvs 2505: {
1.116 cvs 2506: AHTReqContext *me;
1.4 cvs 2507: int status;
2508: int fd;
2509: struct stat file_stat;
1.116 cvs 2510: char *fileURL;
1.151 cvs 2511: /* temporarily put it here, should come in the API */
2512: boolean UsePreconditions = FALSE;
1.4 cvs 2513:
1.33 cvs 2514: AmayaLastHTTPErrorMsg [0] = EOS;
2515:
1.116 cvs 2516: if (urlName == NULL || docid == 0 || fileName == NULL
2517: || !TtaFileExist (fileName))
1.4 cvs 2518: /* no file to be uploaded */
2519: return HT_ERROR;
2520:
2521: /* do we support this protocol? */
1.7 cvs 2522: if (IsValidProtocol (urlName) == NO)
2523: {
2524: /* return error */
1.77 cvs 2525: TtaSetStatus (docid, 1,
2526: TtaGetMessage (AMAYA, AM_PUT_UNSUPPORTED_PROTOCOL),
1.7 cvs 2527: urlName);
2528: return HT_ERROR;
2529: }
1.116 cvs 2530:
2531: /* verify the file's size */
2532: #ifndef _WINDOWS
1.7 cvs 2533: if ((fd = open (fileName, O_RDONLY)) == -1)
1.116 cvs 2534: #else
1.137 cvs 2535: if ((fd = _open (fileName, _O_RDONLY | _O_BINARY)) == -1)
1.116 cvs 2536: #endif /* _WINDOWS */
1.7 cvs 2537: {
2538: /* if we could not open the file, exit */
2539: /*error msg here */
2540: return (HT_ERROR);
2541: }
1.4 cvs 2542:
2543: fstat (fd, &file_stat);
1.137 cvs 2544: # ifdef _WINDOWS
2545: _close (fd);
2546: # else /* _WINDOWS */
1.116 cvs 2547: close (fd);
1.137 cvs 2548: # endif /* _WINDOWS */
1.4 cvs 2549:
1.7 cvs 2550: if (file_stat.st_size == 0)
2551: {
2552: /* file was empty */
2553: /*errmsg here */
2554: return (HT_ERROR);
2555: }
1.116 cvs 2556:
2557: /* prepare the request context */
1.4 cvs 2558:
2559: if (THD_TRACE)
1.116 cvs 2560: fprintf (stderr, "file size == %u\n", (unsigned) file_stat.st_size);
1.4 cvs 2561:
2562: me = AHTReqContext_new (docid);
2563:
1.7 cvs 2564: if (me == NULL)
2565: {
1.131 cvs 2566: /* @@ need an error message here */
1.151 cvs 2567: TtaHandlePendingEvents ();
1.7 cvs 2568: return (HT_ERROR);
2569: }
1.116 cvs 2570:
1.4 cvs 2571: me->mode = mode;
2572: me->incremental_cbf = (TIcbf *) NULL;
2573: me->context_icbf = (void *) NULL;
2574: me->terminate_cbf = terminate_cbf;
2575: me->context_tcbf = context_tcbf;
2576: me->urlName = urlName;
1.116 cvs 2577: me->block_size = file_stat.st_size;
1.17 cvs 2578: /* select the parameters that distinguish a PUT from a GET/POST */
1.4 cvs 2579: me->method = METHOD_PUT;
2580: HTRequest_setMethod (me->request, METHOD_PUT);
2581: me->output = stdout;
1.17 cvs 2582: /* we are not expecting to receive any input from the server */
2583: me->outputfile = (char *) NULL;
1.4 cvs 2584:
1.134 cvs 2585: #ifdef _WINDOWS
2586: /* libwww's HTParse function doesn't take into account the drive name;
2587: so we sidestep it */
2588: fileURL = NULL;
2589: StrAllocCopy (fileURL, "file:");
2590: StrAllocCat (fileURL, fileName);
2591: #else
1.116 cvs 2592: fileURL = HTParse (fileName, "file:/", PARSE_ALL);
1.134 cvs 2593: #endif /* _WINDOWS */
1.116 cvs 2594: me->anchor = (HTParentAnchor *) HTAnchor_findAddress (fileURL);
2595: HT_FREE (fileURL);
1.114 cvs 2596:
1.28 cvs 2597: /* Set the Content-Type of the file we are uploading */
1.77 cvs 2598: HTAnchor_setFormat ((HTParentAnchor *) me->anchor,
2599: AHTGuessAtom_for (me->urlName, contentType));
1.17 cvs 2600:
1.134 cvs 2601: /* associate the anchor to the request */
1.4 cvs 2602: HTRequest_setEntityAnchor (me->request, me->anchor);
1.134 cvs 2603:
2604: /* define other request characteristics */
1.116 cvs 2605: #ifdef _WINDOWS
1.136 cvs 2606: HTRequest_setPreemptive (me->request, NO);
1.116 cvs 2607: #else
1.134 cvs 2608: HTRequest_setPreemptive (me->request, NO);
1.116 cvs 2609: #endif /* _WINDOWS */
2610:
1.151 cvs 2611: /*
2612: ** Make sure that the first request is flushed immediately and not
2613: ** buffered in the output buffer
2614: */
2615: if (mode & AMAYA_FLUSH_REQUEST)
2616: HTRequest_setFlush(me->request, YES);
2617:
2618: /* Should we use preconditions? */
2619: if (UsePreconditions)
2620: HTRequest_setPreconditions(me->request, YES);
2621:
1.136 cvs 2622: /* don't use the cache while saving a document */
2623: HTRequest_setReloadMode (me->request, HT_CACHE_FLUSH);
1.116 cvs 2624:
1.74 cvs 2625: /* prepare the URLname that will be displayed in teh status bar */
2626: ChopURL (me->status_urlName, me->urlName);
2627: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_REMOTE_SAVING),
2628: me->status_urlName);
1.114 cvs 2629:
1.116 cvs 2630: status = HTPutDocumentAbsolute (me->anchor, urlName, me->request);
1.4 cvs 2631:
1.130 cvs 2632: if (status == YES && me->reqStatus != HT_ERR)
1.7 cvs 2633: {
2634: /* part of the stop button handler */
2635: if ((mode & AMAYA_SYNC) || (mode & AMAYA_ISYNC))
1.136 cvs 2636: status = LoopForStop (me);
1.15 cvs 2637: }
1.136 cvs 2638: if (!HTRequest_kill (me->request))
2639: AHTReqContext_delete (me);
2640:
1.116 cvs 2641: TtaHandlePendingEvents ();
1.90 cvs 2642:
1.130 cvs 2643: return (status == YES ? 0 : -1);
1.28 cvs 2644: }
1.4 cvs 2645:
1.5 cvs 2646: /*----------------------------------------------------------------------
1.138 cvs 2647: StopRequest
1.17 cvs 2648: stops (kills) all active requests associated with a docid
1.5 cvs 2649: ----------------------------------------------------------------------*/
1.4 cvs 2650: #ifdef __STDC__
2651: void StopRequest (int docid)
2652: #else
2653: void StopRequest (docid)
2654: int docid;
2655: #endif
2656: {
1.140 cvs 2657: if (Amaya && CanDoStop ())
1.138 cvs 2658: {
1.139 cvs 2659: #if 0 /* for later */
1.140 cvs 2660: AHTDocId_Status *docid_status;
2661: /* verify if there are any requests at all associated with docid */
1.138 cvs 2662: docid_status = (AHTDocId_Status *) GetDocIdStatus (docid,
2663: Amaya->docid_status);
2664: if (docid_status == (AHTDocId_Status *) NULL)
2665: return;
1.139 cvs 2666: #endif /* 0 */
1.138 cvs 2667: /* temporary call to stop all requests, as libwww changed its API */
2668: StopAllRequests (docid);
2669: }
2670: }
2671:
2672: /*----------------------------------------------------------------------
2673: StopAllRequests
2674: stops (kills) all active requests. We use the docid
2675: ----------------------------------------------------------------------*/
2676: #ifdef __STDC__
2677: void StopAllRequests (int docid)
2678: #else
1.140 cvs 2679: void StopAllRequests (docid)
1.138 cvs 2680: int docid;
2681: #endif
2682: {
1.4 cvs 2683: HTList *cur;
2684: AHTReqContext *me;
1.146 cvs 2685: static boolean lock_stop = 0;
1.116 cvs 2686:
1.138 cvs 2687: /* only do the stop if we're not being called while processing a
1.146 cvs 2688: request, and if we're not already dealing with a stop */
2689: if (Amaya && CanDoStop () && !lock_stop)
1.7 cvs 2690: {
1.100 cvs 2691: #ifdef DEBUG_LIBWWW
1.138 cvs 2692: fprintf (stderr, "StopRequest: number of Amaya requests "
2693: "before kill: %d\n", Amaya->open_requests);
1.100 cvs 2694: #endif /* DEBUG_LIBWWW */
1.150 cvs 2695: /* enter the critical section */
1.146 cvs 2696: lock_stop = TRUE;
1.145 cvs 2697: HTNet_killAll ();
1.4 cvs 2698:
1.116 cvs 2699: cur = Amaya->reqlist;
2700: while ((me = (AHTReqContext *) HTList_nextObject (cur)))
2701: {
1.140 cvs 2702: if (AmayaIsAlive ())
2703: if (me->reqStatus != HT_END)
2704: {
2705: if (me->terminate_cbf)
2706: (*me->terminate_cbf) (me->docid, -1, me->urlName,
2707: me->outputfile,
2708: me->content_type, me->context_tcbf);
1.148 cvs 2709: #ifdef DEBUG_LIBWWW
1.140 cvs 2710: fprintf (stderr,"StopRequest: killing req %p, url %s, status %d\n", me, me->urlName, me->reqStatus);
1.148 cvs 2711: #endif /* DEBUG_LIBWWW */
1.140 cvs 2712: AHTReqContext_delete (me);
2713: }
1.142 cvs 2714: #ifndef _WINDOWS
2715: #ifdef WWW_XWINDOWS
1.140 cvs 2716: /* to be on the safe side, remove all outstanding X events */
1.142 cvs 2717: else
1.148 cvs 2718: RequestKillAllXtevents (me);
1.142 cvs 2719: #endif /* WWW_XWINDOWS */
2720: #endif /* !_WINDOWS */
1.116 cvs 2721: }
1.148 cvs 2722: /* expire all outstanding timers */
2723: HTTimer_expireAll ();
1.150 cvs 2724: /* Delete remaining channels */
2725: HTChannel_safeDeleteAll ();
2726: /* exit the critical section */
1.148 cvs 2727: lock_stop = FALSE;
1.100 cvs 2728: #ifdef DEBUG_LIBWWW
1.138 cvs 2729: fprintf (stderr, "StopRequest: number of Amaya requests "
2730: "after kill: %d\n", Amaya->open_requests);
1.100 cvs 2731: #endif /* DEBUG_LIBWWW */
1.138 cvs 2732: }
2733: } /* StopAllRequests */
1.17 cvs 2734:
2735:
1.105 cvs 2736: /*----------------------------------------------------------------------
2737: AmayaIsAlive
1.140 cvs 2738: returns the value of the AmayaAlive_flag
1.105 cvs 2739: ----------------------------------------------------------------------*/
2740: #ifdef __STDC__
2741: boolean AmayaIsAlive (void)
2742: #else
2743: boolean AmayaIsAlive ()
2744: #endif /* _STDC_ */
2745: {
1.140 cvs 2746: return AmayaAlive_flag;
2747: }
2748:
2749: /*----------------------------------------------------------------------
2750: CanDoStop
2751: returns the value of the CanDoStop flag
2752: ----------------------------------------------------------------------*/
2753: #ifdef __STDC__
2754: boolean CanDoStop (void)
2755: #else
2756: boolean CanDoStop ()
2757: #endif /* _STDC_ */
2758: {
2759: return CanDoStop_flag;
2760: }
2761:
2762: /*----------------------------------------------------------------------
2763: CanDoStop_set
2764: sets the value of the CanDoStop flag
2765: ----------------------------------------------------------------------*/
2766: #ifdef __STDC__
2767: void CanDoStop_set (boolean value)
2768: #else
2769: void CanDoStop (value)
2770: boolean value;
2771: #endif /* _STDC_ */
2772: {
2773: CanDoStop_flag = value;
1.105 cvs 2774: }
1.116 cvs 2775:
1.69 cvs 2776: #endif /* AMAYA_JAVA */
1.77 cvs 2777:
1.116 cvs 2778: /*
2779: end of Module query.c
2780: */
1.140 cvs 2781:
2782:
2783:
2784:
2785:
2786:
1.17 cvs 2787:
2788:
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