Annotation of Amaya/amaya/query.c, revision 1.163
1.14 cvs 1: /*
2: *
3: * (c) COPYRIGHT MIT and INRIA, 1996.
4: * Please first read the full copyright statement in file COPYRIGHT.
1.156 cvs 5: *
1.14 cvs 6: */
1.4 cvs 7:
1.19 cvs 8: /*
1.83 cvs 9: * query.c : contains all the functions for requesting and publishing
1.19 cvs 10: * URLs via libwww. It handles any eventual HTTP error code
11: * (redirection, authentication needed, not found, etc.)
12: *
1.69 cvs 13: * Author: J. Kahan
1.92 cvs 14: * J. Kahan/R. Guetari Windows 95/NT routines
1.19 cvs 15: */
1.17 cvs 16:
1.44 cvs 17: #ifndef AMAYA_JAVA
18:
1.116 cvs 19: /* defines to include elsewhere
20: *********************************/
21:
1.124 cvs 22: #ifndef _WINDOWS
1.130 cvs 23: #endif /* !_WINDOWS */
1.116 cvs 24: #define AMAYA_WWW_CACHE
25:
1.128 cvs 26: #define CACHE_DIR_NAME DIR_STR"libwww-cache"
1.116 cvs 27: #define DEFAULT_CACHE_SIZE 5
1.158 cvs 28: #define DEFAULT_MAX_SOCKET 64
1.151 cvs 29: #define DEFAULT_DNS_TIMEOUT 60
30: #define DEFAULT_PERSIST_TIMEOUT 60L
31: #define DEFAULT_NET_EVENT_TIMEOUT 20000
1.116 cvs 32:
1.12 cvs 33: /* Amaya includes */
1.25 cvs 34: #define THOT_EXPORT extern
1.4 cvs 35: #include "amaya.h"
1.130 cvs 36: #include <sys/types.h>
1.70 cvs 37: #include <fcntl.h>
1.140 cvs 38: #include "HTEvtLst.h"
1.157 cvs 39: #include "HTAABrow.h"
1.7 cvs 40:
1.141 cvs 41: #if defined(__svr4__) || defined (_AIX)
1.4 cvs 42: #define CATCH_SIG
43: #endif
44:
45: /* local structures coming from libwww and which are
1.17 cvs 46: not found in any .h file
1.7 cvs 47: */
1.68 cvs 48:
1.7 cvs 49: struct _HTStream
50: {
1.15 cvs 51: const HTStreamClass *isa;
52: FILE *fp;
1.45 cvs 53: BOOL leave_open; /* Close file when TtaFreeMemory? */
1.15 cvs 54: char *end_command; /* Command to execute */
55: BOOL remove_on_close; /* Remove file? */
56: char *filename; /* Name of file */
57: HTRequest *request; /* saved for callback */
58: HTRequestCallback *callback;
1.7 cvs 59: };
60:
1.15 cvs 61:
1.7 cvs 62: struct _HTError
63: {
64: HTErrorElement element; /* Index number into HTError */
65: HTSeverity severity; /* A la VMS */
66: BOOL ignore; /* YES if msg should not go to user */
67: void *par; /* Explanation, e.g. filename */
68: int length; /* For copying by generic routine */
69: char *where; /* Which function */
70: };
71:
1.4 cvs 72: /* Type definitions and global variables etc. local to this module */
73:
1.17 cvs 74: /*----------------------------------------------------------------------*/
75:
1.4 cvs 76: /*** private variables ***/
1.17 cvs 77:
1.4 cvs 78: static HTList *converters = NULL; /* List of global converters */
1.27 cvs 79: static HTList *acceptTypes = NULL; /* List of types for the Accept header */
1.151 cvs 80: static HTList *transfer_encodings = NULL;
81: static HTList *content_encodings = NULL;
1.16 cvs 82: static int object_counter = 0; /* loaded objects counter */
1.140 cvs 83: static boolean AmayaAlive_flag; /* set to 1 if the application is active;
84: 0 if we have killed */
85: static boolean CanDoStop_flag; /* set to 1 if we can do a stop, 0
86: if we're inside a critical section */
1.128 cvs 87: #ifdef AMAYA_WWW_CACHE
1.130 cvs 88: static int fd_cachelock; /* open handle to the .lock cache file */
89: #endif /* AMAYA_WWW_CACHE */
1.4 cvs 90:
1.15 cvs 91: #include "answer_f.h"
92: #include "query_f.h"
93: #include "AHTURLTools_f.h"
94: #include "AHTBridge_f.h"
95: #include "AHTMemConv_f.h"
96: #include "AHTFWrite_f.h"
1.4 cvs 97:
1.116 cvs 98: /* prototypes */
99:
100: #ifdef __STDC__
1.128 cvs 101: static void RecCleanCache (char *dirname);
1.123 cvs 102: #ifdef _WINDOWS
1.70 cvs 103: int WIN_Activate_Request (HTRequest* , HTAlertOpcode, int, const char*, void*, HTAlertPar*);
1.116 cvs 104: #endif /* _WINDOWS */
1.70 cvs 105: #else
1.128 cvs 106: static void RecCleanCache (/* char *dirname */);
1.123 cvs 107: #ifdef _WINDOWS
1.128 cvs 108: int WIN_Activate_Request (/* HTRequest* , HTAlertOpcode, int, const char*, void*, HTAlertPar* */);
1.116 cvs 109: #endif /* _WINDOWS */
1.70 cvs 110: #endif /* __STDC__ */
1.116 cvs 111:
1.15 cvs 112:
1.130 cvs 113: #ifdef AMAYA_WWW_CACHE
114: /***************************************************************
115: lock functions, used to avoid concurrent use of the cache
116: Mostly based on W. Richard Stevens' APUE book.
117: ***************************************************************/
118: /*----------------------------------------------------------------------
119: set_cachelock
120: sets a write lock on filename.
121: Returns -1 in case of failure, otherwise, it'll open a handle on
122: filename and fd_cachelock will take its value.
123: ----------------------------------------------------------------------*/
124: #ifdef __STDC__
125: static int set_cachelock (char *filename)
126: #else
127: static int set_cachelock (filename)
128: char *filename;
129: #endif /* __STDC__ */
130: {
131: #ifdef _WINDOWS
132: return 0;
133: #else
134: int status;
135: struct flock lock;
136:
137: lock.l_type = F_WRLCK;
138: lock.l_start = 0;
139: lock.l_whence = SEEK_SET;
140: lock.l_len = 0;
141:
142: fd_cachelock = open (filename, O_WRONLY);
143:
144: if (fd_cachelock == -1)
145: status = -1;
146: else
147: status = fcntl(fd_cachelock, F_SETLK, &lock);
148:
149: if (status == -1)
150: fd_cachelock = 0;
151:
152: return (status);
153: #endif /* _WINDOWS */
154: }
155:
156: /*----------------------------------------------------------------------
157: clear_cachelock
158: remove the write lock set on a filename.
159: It'll close the fd handle on filename and reset *fd to 0.
160: ----------------------------------------------------------------------*/
161: #ifdef __STDC__
162: static int clear_cachelock (void)
163: #else
164: static int clear_cachelock ()
165: int *fd;
166: #endif /* __STDC__ */
167: {
168: #ifdef _WINDOWS
169: return 0;
170: #else
171: int status;
172: struct flock lock;
173:
174: if (fd_cachelock)
175: return (-1);
176:
177: lock.l_type = F_UNLCK;
178: lock.l_start = 0;
179: lock.l_whence = SEEK_SET;
180: lock.l_len = 0;
181:
182: status = fcntl(fd_cachelock, F_SETLK, &lock);
183: close (fd_cachelock);
184: fd_cachelock = 0;
185:
186: return (status);
187: #endif /* _WINDOWS */
188: }
189:
190: /*----------------------------------------------------------------------
191: test_cachelock
192: returns 0 if a fd is not locked by other process, otherwise
193: returns the pid of the process who has the lock
194: ----------------------------------------------------------------------*/
195: #ifdef __STDC__
196: static int test_cachelock (char *filename)
197: #else
198: static int test_cachelock (filename)
199: char *filename;
200: #endif __STDC__
201: {
202: #ifdef _WINDOWS
203: int fd;
1.137 cvs 204: fd = _open (filename, _O_WRONLY | _O_BINARY);
1.130 cvs 205: if (fd != -1)
206: {
1.137 cvs 207: _close (fd);
1.130 cvs 208: return 0;
209: }
210: else
211: return -1;
212: #else
213: struct flock lock;
214: int fd, status;
215:
216: lock.l_type = F_WRLCK;
217: lock.l_start = 0;
218: lock.l_whence = SEEK_SET;
219: lock.l_len = 0;
220:
221: fd = open (filename, O_WRONLY);
222:
223: if (fd < 0)
224: return (-1);
225: /* is this file locked ? */
226: status = fcntl (fd, F_GETLK, &lock);
227: close (fd);
228:
229: if (status < 0)
230: return (-1);
231:
232: if (lock.l_type == F_UNLCK)
233: return (0); /* false, region is not locked by another proc */
234: return (lock.l_pid); /* true, return pid of lock owner */
235: #endif /* _WINDOWS */
236: }
237:
238: #endif /* AMAYA_WWW_CACHE */
239:
1.15 cvs 240: /*----------------------------------------------------------------------
1.17 cvs 241: GetDocIdStatus
242: gets the status associated to a docid
1.15 cvs 243: ----------------------------------------------------------------------*/
244: #ifdef __STDC__
245: AHTDocId_Status *GetDocIdStatus (int docid, HTList * documents)
246: #else
247: AHTDocID_Status *GetDocIdStatus (docid, documents)
248: int docid;
249: HTList *documents;
250:
251: #endif
252: {
253: AHTDocId_Status *me;
254: HTList *cur;
255:
256: if (documents)
257: {
258: cur = documents;
259:
260: while ((me = (AHTDocId_Status *) HTList_nextObject (cur)))
261: {
262: if (me->docid == docid)
263: return (me);
1.18 cvs 264: }
265: }
1.15 cvs 266: return (AHTDocId_Status *) NULL;
267:
268: }
269:
1.5 cvs 270: /*----------------------------------------------------------------------
1.27 cvs 271: AHTGuessAtom_for
272: Converts an Amaya type descriptor into the equivalent MIME type.
273: ----------------------------------------------------------------------*/
274: #ifdef __STDC__
275: static HTAtom *AHTGuessAtom_for (char *urlName, PicType contentType)
276: #else
277: static HTAtom *AHTGuessAtom_for (urlName, contentType)
278: char *urlName;
279: PicType contentType;
280: #endif
281: {
282: HTAtom *atom;
283: char *filename;
1.160 cvs 284: HTEncoding enc = NULL;
285: HTEncoding cte = NULL;
286: HTLanguage lang = NULL;
1.50 cvs 287: double quality = 1.0;
1.27 cvs 288:
289: switch (contentType)
290: {
291: case xbm_type:
292: atom = HTAtom_for("image/xbm");
293: break;
294: case eps_type:
1.35 cvs 295: atom = HTAtom_for("application/postscript");
1.27 cvs 296: break;
297: case xpm_type:
298: atom = HTAtom_for("image/xpm");
299: break;
300: case gif_type:
301: atom = HTAtom_for("image/gif");
302: break;
303: case jpeg_type:
304: atom = HTAtom_for("image/jpeg");
305: break;
306: case png_type:
307: atom = HTAtom_for("image/png");
308: break;
309: case unknown_type:
310: default:
311: /*
312: ** Amaya could not detect the type, so
313: ** we try to use the filename's suffix to do so.
314: */
1.45 cvs 315: filename = AmayaParseUrl (urlName, "", AMAYA_PARSE_PATH | AMAYA_PARSE_PUNCTUATION);
1.27 cvs 316: HTBind_getFormat (filename, &atom, &enc, &cte, &lang, &quality);
1.45 cvs 317: TtaFreeMemory (filename);
1.27 cvs 318: if (atom == WWW_UNKNOWN)
319: /*
320: ** we could not identify the suffix, so we assign it
321: ** a default type
322: */
323: atom = HTAtom_for ("text/html");
324: break;
325: }
326:
327: return atom;
328: }
329:
330: /*----------------------------------------------------------------------
1.17 cvs 331: AHTReqContext_new
332: create a new Amaya Context Object and update the global Amaya
333: request status.
1.5 cvs 334: ----------------------------------------------------------------------*/
1.4 cvs 335: #ifdef __STDC__
336: static AHTReqContext *AHTReqContext_new (int docid)
337: #else
338: static AHTReqContext *AHTReqContext_new (docid)
339: int docid;
340:
341: #endif
342: {
343: AHTReqContext *me;
344: AHTDocId_Status *docid_status;
345:
346: if ((me = (AHTReqContext *) TtaGetMemory (sizeof (AHTReqContext))) == NULL)
1.116 cvs 347: outofmem (__FILE__, "AHTReqContext_new");
348:
349: /* clear the structure */
350: memset ((void *) me, 0, sizeof (AHTReqContext));
1.4 cvs 351:
1.81 cvs 352: /* Bind the Context object together with the Request Object */
353: me->request = HTRequest_new ();
354:
1.80 cvs 355: /* clean the associated file structure) */
1.79 cvs 356: HTRequest_setOutputStream (me->request, NULL);
1.81 cvs 357:
1.4 cvs 358: /* Initialize the other members of the structure */
1.17 cvs 359: me->reqStatus = HT_NEW; /* initial status of a request */
1.4 cvs 360: me->docid = docid;
361: HTRequest_setMethod (me->request, METHOD_GET);
362: HTRequest_setOutputFormat (me->request, WWW_SOURCE);
363: HTRequest_setContext (me->request, me);
1.116 cvs 364:
1.36 cvs 365: /* experimental */
366: me->read_sock = INVSOC;
367: me->write_sock = INVSOC;
368: me->except_sock = INVSOC;
1.4 cvs 369:
370: /* Update the global context */
371: HTList_appendObject (Amaya->reqlist, (void *) me);
372:
373: docid_status = GetDocIdStatus (docid, Amaya->docid_status);
374:
1.7 cvs 375: if (docid_status == NULL)
376: {
1.116 cvs 377: docid_status = (AHTDocId_Status *)
378: TtaGetMemory (sizeof (AHTDocId_Status));
1.7 cvs 379: docid_status->docid = docid;
380: docid_status->counter = 1;
381: HTList_addObject (Amaya->docid_status, (void *) docid_status);
382: }
383: else
1.4 cvs 384: docid_status->counter++;
385:
386: Amaya->open_requests++;
387:
1.74 cvs 388: #ifdef DEBUG_LIBWWW
389: fprintf (stderr, "AHTReqContext_new: Created object %p\n", me);
390: #endif
1.116 cvs 391:
1.4 cvs 392: return me;
393: }
394:
1.5 cvs 395: /*----------------------------------------------------------------------
1.17 cvs 396: AHTReqContext_delete
397: Delete an Amaya Context Object and update the global Amaya request
398: status.
1.5 cvs 399: ----------------------------------------------------------------------*/
1.4 cvs 400:
401: #ifdef __STDC__
1.15 cvs 402: boolean AHTReqContext_delete (AHTReqContext * me)
1.4 cvs 403: #else
1.15 cvs 404: boolean AHTReqContext_delete (me)
1.4 cvs 405: AHTReqContext *me;
406:
407: #endif
408: {
409: AHTDocId_Status *docid_status;
410:
1.7 cvs 411: if (me)
412: {
1.74 cvs 413: #ifdef DEBUG_LIBWWW
1.138 cvs 414: fprintf (stderr, "AHTReqContext_delete: Deleting object %p\n", me);
1.74 cvs 415: #endif
1.138 cvs 416: if (Amaya->reqlist)
417: HTList_removeObject (Amaya->reqlist, (void *) me);
418:
419: docid_status = GetDocIdStatus (me->docid, Amaya->docid_status);
420: if (docid_status)
421: {
422: docid_status->counter--;
423:
424: if (docid_status->counter == 0)
425: {
426: HTList_removeObject (Amaya->docid_status, (void *) docid_status);
427: TtaFreeMemory ((void *) docid_status);
428: }
429: }
430: if (me->method != METHOD_PUT && HTRequest_outputStream (me->request))
1.154 cvs 431: AHTFWriter_FREE (HTRequest_outputStream (me->request));
1.138 cvs 432:
433: HTRequest_delete (me->request);
434:
435: if (me->output && me->output != stdout)
436: {
1.85 cvs 437: #ifdef DEBUG_LIBWWW
1.138 cvs 438: fprintf (stderr, "AHTReqContext_delete: URL is %s, closing "
439: "FILE %p\n", me->urlName, me->output);
1.85 cvs 440: #endif
1.138 cvs 441: fclose (me->output);
442: me->output = NULL;
443: }
1.79 cvs 444:
1.138 cvs 445: if (me->error_stream != (char *) NULL)
446: HT_FREE (me->error_stream);
447: #ifndef _WINDOWS
448: #ifdef WWW_XWINDOWS
449: if (me->read_xtinput_id || me->write_xtinput_id ||
450: me->except_xtinput_id)
451: RequestKillAllXtevents(me);
452: #endif /* WWW_XWINDOWS */
453: #endif /* !_WINDOWS */
454:
455: if (me->reqStatus == HT_ABORT)
456: {
457: if (me->outputfile && me->outputfile[0] != EOS)
458: {
459: TtaFileUnlink (me->outputfile);
460: me->outputfile[0] = EOS;
461: }
462: }
463:
464: if ((me->mode & AMAYA_ASYNC) || (me->mode & AMAYA_IASYNC))
465: /* for the ASYNC mode, free the memory we allocated in GetObjectWWW
466: or in PutObjectWWW */
467: {
468: if (me->urlName)
469: TtaFreeMemory (me->urlName);
470: if (me->outputfile)
471: TtaFreeMemory (me->outputfile);
472: }
473:
474: if (me->content_type)
475: TtaFreeMemory (me->content_type);
476:
477: if (me->formdata)
478: HTAssocList_delete (me->formdata);
479:
480: /* to trace bugs */
481: memset ((void *) me, 0, sizeof (AHTReqContext));
482:
483: TtaFreeMemory ((void *) me);
484:
485: Amaya->open_requests--;
486:
487: return TRUE;
1.7 cvs 488: }
1.15 cvs 489: return FALSE;
1.4 cvs 490: }
491:
492:
1.15 cvs 493: /*----------------------------------------------------------------------
1.17 cvs 494: Thread_deleteAll
495: this function deletes the whole list of active threads.
1.5 cvs 496: ----------------------------------------------------------------------*/
1.4 cvs 497: #ifdef __STDC__
498: static void Thread_deleteAll (void)
499: #else
500: static void Thread_deleteAll ()
501: #endif
502: {
1.21 cvs 503: HTList *cur;
504: AHTReqContext *me;
505: AHTDocId_Status *docid_status;
506:
1.74 cvs 507: if (Amaya && Amaya->reqlist)
508: {
509: if (Amaya->open_requests > 0)
510: #ifdef DEBUG_LIBWWW
511: fprintf (stderr, "Thread_deleteAll: Killing %d outstanding "
512: "requests\n", Amaya->open_requests);
513: #endif
514: {
515: cur = Amaya->reqlist;
516:
517: /* erase the requests */
518: while ((me = (AHTReqContext *) HTList_removeLastObject (cur)))
519: {
520: if (me->request)
521: {
1.142 cvs 522: #ifndef _WINDOWS
523: #ifdef WWW_XWINDOWS
1.74 cvs 524: RequestKillAllXtevents (me);
1.142 cvs 525: #endif /* WWW_XWINDOWS */
1.138 cvs 526: #endif /* !_WINDOWS */
1.140 cvs 527: if (!HTRequest_kill (me->request))
528: AHTReqContext_delete (me);
1.74 cvs 529: }
530: } /* while */
531:
532: /* erase the docid_status entities */
533: while ((docid_status = (AHTDocId_Status *) HTList_removeLastObject ((void *) Amaya->docid_status)))
534: TtaFreeMemory ((void *) docid_status);
535:
536: } /* if */
1.84 cvs 537:
1.74 cvs 538: }
1.4 cvs 539: }
540:
1.5 cvs 541: /*----------------------------------------------------------------------
1.83 cvs 542: AHTOpen_file
543: ----------------------------------------------------------------------*/
544: #ifdef __STDC__
1.85 cvs 545: int AHTOpen_file (HTRequest * request)
1.83 cvs 546: #else
1.85 cvs 547: int AHTOpen_file (request)
1.83 cvs 548: HTRequest *request;
549:
550: #endif /* __STDC__ */
551: {
552: AHTReqContext *me; /* current request */
553:
554: me = HTRequest_context (request);
555:
1.93 cvs 556: if (!me)
557: return HT_ERROR;
558:
1.83 cvs 559: #ifdef DEBUG_LIBWWW
1.116 cvs 560: fprintf(stderr, "AHTOpen_file: start for object : %p\n", me);
1.85 cvs 561: #endif /* DEBUG_LIBWWW */
562:
563: if (me->reqStatus == HT_ABORT)
564: {
565: #ifdef DEBUG_LIBWWW
566: fprintf(stderr, "AHTOpen_file: caught an abort request, skipping it\n");
1.83 cvs 567: #endif /* DEBUG_LIBWWW */
568:
1.85 cvs 569: return HT_OK;
570: }
571:
1.136 cvs 572: if (me->method == METHOD_PUT)
573: {
574: me->reqStatus = HT_WAITING;
575: return HT_OK;
576: }
577:
1.85 cvs 578: if (HTRequest_outputStream (me->request))
579: {
580:
581: #ifdef DEBUG_LIBWWW
582: fprintf(stderr, "AHTOpen_file: output stream already existed for url %s\n", me->urlName);
583: #endif /* DEBUG_LIBWWW */
584: return HT_OK;
585: }
586:
587: #ifdef DEBUG_LIBWWW
588: fprintf(stderr, "AHTOpen_file: opening output stream for url %s\n", me->urlName);
589: #endif /* DEBUG_LIBWWW */
590:
1.83 cvs 591: if (!(me->output) &&
592: (me->output != stdout) &&
593: #ifndef _WINDOWS
594: (me->output = fopen (me->outputfile, "w")) == NULL)
595: {
1.116 cvs 596: #else /* !_WINDOWS */
1.83 cvs 597: (me->output = fopen (me->outputfile, "wb")) == NULL)
598: {
599: #endif /* !_WINDOWS */
600:
1.131 cvs 601: me->outputfile[0] = EOS; /* file could not be opened */
1.85 cvs 602: #ifdef DEBUG_LIBWWW
603: fprintf(stderr, "AHTOpen_file: couldn't open output stream for url %s\n", me->urlName);
604: #endif
1.83 cvs 605: TtaSetStatus (me->docid, 1,
606: TtaGetMessage (AMAYA, AM_CANNOT_CREATE_FILE),
607: me->outputfile);
608: me->reqStatus = HT_ERR;
609: return (HT_ERROR);
610: }
611:
612: HTRequest_setOutputStream (me->request,
613: AHTFWriter_new (me->request,
614: me->output, YES));
615: me->reqStatus = HT_WAITING;
616:
617: return HT_OK;
618: }
619:
620: /*----------------------------------------------------------------------
1.17 cvs 621: redirection_handler
622: this function is registered to handle permanent and temporary
623: redirections.
624: ----------------------------------------------------------------------*/
1.4 cvs 625: #ifdef __STDC__
1.7 cvs 626: static int redirection_handler (HTRequest * request, HTResponse * response, void *param, int status)
1.4 cvs 627: #else
628: static int redirection_handler (request, context, status)
629: HTRequest *request;
630: HTResponse *response;
631: void *param;
632: int status;
633:
634: #endif
635: {
636:
637: HTAnchor *new_anchor = HTResponse_redirection (response);
1.7 cvs 638: AHTReqContext *me = HTRequest_context (request);
1.4 cvs 639: HTMethod method = HTRequest_method (request);
1.98 cvs 640: char *ref;
641: char *tmp;
1.4 cvs 642:
1.153 cvs 643: if (!me)
644: /* if the redirect doesn't come from Amaya, we call libwww's standard
645: redirect filter */
646: return (HTRedirectFilter (request, response, param, status));
647:
1.7 cvs 648: if (!new_anchor)
649: {
650: if (PROT_TRACE)
651: HTTrace ("Redirection. No destination\n");
652: return HT_OK;
653: }
1.4 cvs 654:
655: /*
656: ** Only do redirect on GET and HEAD
657: */
1.7 cvs 658: if (!HTMethod_isSafe (method))
659: {
1.130 cvs 660: /*
661: ** If we got a 303 See Other then change the method to GET.
662: ** Otherwise ask the user whether we should continue.
663: */
664: if (status == HT_SEE_OTHER)
665: {
666: if (PROT_TRACE)
667: HTTrace("Redirection. Changing method from %s to GET\n",
668: HTMethod_name(method));
669: HTRequest_setMethod(request, METHOD_GET);
670: }
671: else
672: {
673: HTAlertCallback *prompt = HTAlert_find (HT_A_CONFIRM);
674: if (prompt)
675: {
676: if ((*prompt) (request, HT_A_CONFIRM, HT_MSG_REDIRECTION,
677: NULL, NULL, NULL) != YES)
1.153 cvs 678: return HT_OK;
1.130 cvs 679: }
680: }
1.7 cvs 681: }
1.4 cvs 682: /*
683: ** Start new request with the redirect anchor found in the headers.
684: ** Note that we reuse the same request object which means that we must
685: ** keep this around until the redirected request has terminated. It also
686: ** allows us in an easy way to keep track of the number of redirections
687: ** so that we can detect endless loops.
688: */
1.17 cvs 689:
1.7 cvs 690: if (HTRequest_doRetry (request))
691: {
692: /* do we need to normalize the URL? */
693: if (strncmp (new_anchor->parent->address, "http:", 5))
694: {
695: /* Yes, so we use the pre-redirection anchor as a base name */
1.74 cvs 696: ref = AmayaParseUrl (new_anchor->parent->address,
697: me->urlName, AMAYA_PARSE_ALL);
1.7 cvs 698: if (ref)
699: {
1.98 cvs 700: HT_FREE (new_anchor->parent->address);
701: tmp = NULL;
702: HTSACopy (&tmp, ref);
703: new_anchor->parent->address = tmp;
704: TtaFreeMemory (ref);
1.7 cvs 705: }
1.98 cvs 706: else
707: return HT_ERROR; /* We can't redirect anymore */
1.7 cvs 708: }
709:
710: /* update the current file name */
1.130 cvs 711: if ((me->mode & AMAYA_ASYNC) || (me->mode & AMAYA_IASYNC))
1.7 cvs 712: {
1.130 cvs 713: TtaFreeMemory (me->urlName);
714: me->urlName = TtaStrdup (new_anchor->parent->address);
1.7 cvs 715: }
716: else
1.130 cvs 717: /* it's a SYNC mode, so we should keep the urlName */
718: {
719: strncpy (me->urlName, new_anchor->parent->address,
720: MAX_LENGTH - 1);
721: me->urlName[MAX_LENGTH - 1] = EOS;
722: }
1.7 cvs 723:
1.38 cvs 724: ChopURL (me->status_urlName, me->urlName);
1.116 cvs 725:
1.7 cvs 726: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_RED_FETCHING),
1.38 cvs 727: me->status_urlName);
1.7 cvs 728:
729: /* Start request with new credentials */
1.79 cvs 730: if (HTRequest_outputStream (me->request) != NULL) {
1.154 cvs 731: AHTFWriter_FREE (HTRequest_outputStream (me->request));
1.85 cvs 732: if (me->output != stdout) { /* Are we writing to a file? */
1.74 cvs 733: #ifdef DEBUG_LIBWWW
1.130 cvs 734: fprintf (stderr, "redirection_handler: New URL is %s, closing "
735: "FILE %p\n", me->urlName, me->output);
1.74 cvs 736: #endif
1.79 cvs 737: fclose (me->output);
738: me->output = NULL;
739: }
1.64 cvs 740: }
1.68 cvs 741:
1.105 cvs 742: /* reset the status */
1.116 cvs 743: me->reqStatus = HT_NEW;
1.105 cvs 744: /* clear the errors */
1.116 cvs 745: HTError_deleteAll (HTRequest_error (request));
1.105 cvs 746: HTRequest_setError (request, NULL);
1.116 cvs 747:
1.130 cvs 748: if (me->method == METHOD_PUT
749: || me->method == METHOD_POST) /* PUT, POST etc. */
1.74 cvs 750: status = HTLoadAbsolute (me->urlName, request);
1.7 cvs 751: else
1.74 cvs 752: HTLoadAnchor (new_anchor, request);
1.7 cvs 753: }
754: else
1.68 cvs 755: {
1.74 cvs 756: HTRequest_addError (request, ERR_FATAL, NO, HTERR_MAX_REDIRECT,
757: NULL, 0, "HTRedirectFilter");
758: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_REDIRECTIONS_LIMIT),
759: NULL);
760: if (me->error_html)
761: DocNetworkStatus[me->docid] |= AMAYA_NET_ERROR;
762: /* so that we can show the error message */
1.68 cvs 763: }
764:
1.4 cvs 765: /*
1.74 cvs 766: ** By returning HT_ERROR we make sure that this is the last handler to be
767: ** called. We do this as we don't want any other filter to delete the
768: ** request object now when we have just started a new one ourselves
769: */
1.4 cvs 770: return HT_ERROR;
771: }
772:
1.151 cvs 773: #ifdef AMAYA_LOST_UPDATE
774: /*----------------------------------------------------------------------
775: precondition_handler
776: 412 "Precondition failed" handler
777: ----------------------------------------------------------------------*/
778: #if __STDC__
779: static int precondition_handler (HTRequest * request, HTResponse * response, void *context, int status)
780: #else
781: static int precondition_handler (request, response, context, status)
782: HTRequest *request;
783: HTResponse *response;
784: void *context;
785: int status;
786: #endif /* __STDC__ */
787: {
788: AHTReqContext *me = (AHTReqContext *) HTRequest_context (request);
789: int conflict = 0;
790:
791: if (!me)
792: return HT_OK; /* not an Amaya request */
793:
794: if (me->output && me->output != stdout)
795: {
796: fclose (me->output);
797: me->output = NULL;
798: }
799:
800: if (conflict == 1)
801: {
802: /* start a new PUT request without preconditions */
803: /* @@@ put some form here */
804: /* Stop here */
805: return HT_ERROR;
806: }
807: else
808: if (conflict == 2)
809: {
810: /* Stop here */
811: return HT_ERROR;
812: }
813: else
814: return HT_OK; /* Just finish the request */
815: }
816:
817: /*
818: ** Request HEAD checker filter
819: */
820: PRIVATE int check_handler (HTRequest * request, HTResponse * response,
821: void * param, int status)
822: {
823: int conflict = 0;
824: /***
825: CRequest * req = (CRequest *) HTRequest_context(request);
826: CVersionConflict conflict;
827:
828: req->Cleanup();
829: ***/
830: /*
831: ** If head request showed that the document doesn't exist
832: ** then just go ahead and PUT it. Otherwise ask for help
833: */
834: if (status==HT_INTERRUPTED || status==HT_TIMEOUT)
835: {
836: return HT_ERROR;
837: }
838: else
839: if (abs(status)/100!=2)
840: {
841: /* Start a new PUT request without preconditions */
842: /***
843: HTAnchor * source = req->Source();
844: HTAnchor * dest = req->Destination();
845: CRequest * new_req = new CRequest(req->m_pDoc);
846: delete req;
847: new_req->PutDocument(source, dest, FALSE);
848: ***/
849: }
850: else
851: if (conflict)
852: {
853: if (conflict == 1)
854: {
855: /***
856: HTAnchor * source = req->Source();
857: HTAnchor * dest = req->Destination();
858: CRequest * new_req = new CRequest(req->m_pDoc);
859: delete req;
860: ***/
861: /* Start a new PUT request without preconditions */
862: /***
863: new_req->PutDocument(source, dest, FALSE);
864: ***/
865: }
866: else
867: if (conflict == 2)
868: {
869: /***
870: HTAnchor * address = req->Source();
871: CRequest * new_req = new CRequest(req->m_pDoc);
872: delete req;
873: ***/
874: /* Start a new GET request */
875: /***
876: new_req->GetDocument(address, 2);
877: ***/
878: }
879: }
880: return HT_ERROR;
881: }
882: #endif /* AMAYA_LOST_UPDATE */
883:
1.5 cvs 884: /*----------------------------------------------------------------------
1.17 cvs 885: terminate_handler
886: this function is registered to handle the result of the request
1.5 cvs 887: ----------------------------------------------------------------------*/
1.4 cvs 888: #if __STDC__
1.7 cvs 889: static int terminate_handler (HTRequest * request, HTResponse * response, void *context, int status)
1.4 cvs 890: #else
891: static int terminate_handler (request, response, context, status)
892: HTRequest *request;
893: HTResponse *response;
894: void *context;
895: int status;
1.123 cvs 896: #endif /* __STDC__ */
1.4 cvs 897: {
1.116 cvs 898: AHTReqContext *me = (AHTReqContext *) HTRequest_context (request);
899: boolean error_flag;
900: char *content_type;
901:
902: if (!me)
1.153 cvs 903: return HT_ERROR; /* not an Amaya request */
1.116 cvs 904:
905: if (me->reqStatus == HT_END)
906: /* we have already processed this request! */
907: return HT_OK;
908:
909: /* if Amaya was killed, treat with this request as if it were
910: issued by a Stop button event */
911:
912: if (!AmayaIsAlive ())
1.80 cvs 913: me->reqStatus = HT_ABORT;
1.74 cvs 914:
1.77 cvs 915: if (status == HT_LOADED ||
916: status == HT_CREATED ||
1.79 cvs 917: status == HT_NO_DATA ||
1.160 cvs 918: /* kludge for work around libwww problem */
919: (status == HT_INTERRUPTED && me->method == METHOD_PUT) ||
1.116 cvs 920: #ifdef AMAYA_WWW_CACHE
921: /* what status to use to know we're downloading from a cache? */
922: status == HT_NOT_MODIFIED ||
923: #endif /* AMAYA_WWW_CACHE */
1.79 cvs 924: me->reqStatus == HT_ABORT)
1.74 cvs 925: error_flag = FALSE;
1.13 cvs 926: else
1.74 cvs 927: error_flag = TRUE;
1.130 cvs 928:
1.4 cvs 929: /* output any errors from the server */
1.130 cvs 930:
1.77 cvs 931: /*
1.74 cvs 932: ** me->output = output file which will receive an html file
933: ** me->error_html = yes, output HTML errors in the screen
934: ** request->error_stack == if there are any errors, they will be here
935: ** me->error_stream_size If it's != 0 means an error message has already
936: ** been written to the stack
937: */
938:
1.4 cvs 939: /* First, we verify if there are any errors and if they are not
1.17 cvs 940: ** yet written to the error stack. If no, then let's try to write them
941: ** ourselves
942: */
1.74 cvs 943:
944: #ifdef DEBUG_LIBWWW
945: fprintf (stderr, "terminate_handler: URL is "
946: "%s, closing FILE %p status is %d\n", me->urlName, me->output,
947: status);
1.69 cvs 948: #endif
1.74 cvs 949:
1.69 cvs 950: if (me->output && me->output != stdout)
951: {
1.74 cvs 952: /* we are writing to a file */
953: if (me->reqStatus != HT_ABORT)
954: { /* if the request was not aborted and */
1.80 cvs 955: if (error_flag &&
956: me->error_html == TRUE)
957: /* there were some errors and we want to print them */
958: {
959: if (me->error_stream_size == 0)/* and the stream is empty */
960: AHTError_MemPrint (request); /* copy errors from
1.74 cvs 961: **the error stack
1.77 cvs 962: ** into the error stream */
1.80 cvs 963: if (me->error_stream)
964: { /* if the stream is non-empty */
965: fprintf (me->output, me->error_stream);/* output the errors */
1.85 cvs 966: /* Clear the error context, so that we can deal with
967: this answer as if it were a normal reply */
968: HTError_deleteAll( HTRequest_error (request));
969: HTRequest_setError (request, NULL);
970: error_flag = 0;
1.74 cvs 971: }
972: } /* if error_stack */
1.85 cvs 973: }
974:
975: /* if != HT_ABORT */
976:
977: #ifdef DEBUG_LIBWWW
978: fprintf (stderr, "terminate_handler: URL is %s, closing "
979: "FILE %p\n", me->urlName, me->output);
980: #endif
1.74 cvs 981: fclose (me->output);
982: me->output = NULL;
1.69 cvs 983: }
1.80 cvs 984:
985: if (error_flag)
986: me->reqStatus = HT_ERR;
987: else if (me->reqStatus != HT_ABORT)
988: me->reqStatus = HT_END;
1.151 cvs 989:
1.116 cvs 990: /* copy the content_type */
1.151 cvs 991: if (!me->content_type)
1.88 cvs 992: {
1.154 cvs 993: /* @@ should get this info from response */
994: if (request->anchor && request->anchor->content_type)
995: content_type = request->anchor->content_type->name;
996: else
997: content_type = "www/unknown";
998:
1.151 cvs 999: if (content_type && content_type [0] != EOS)
1000: {
1001: /* libwww gives www/unknown when it gets an error. As this is
1002: an HTML test, we force the type to text/html */
1003: if (!strcmp (content_type, "www/unknown"))
1004: me->content_type = TtaStrdup ("text/html");
1005: else
1006: me->content_type = TtaStrdup (content_type);
1007:
1008: /* Content-Type can be specified by an httpd server's admin.
1009: To be on the safe side, we normalize its case */
1010: ConvertToLowerCase (me->content_type);
1011:
1.88 cvs 1012: #ifdef DEBUG_LIBWWW
1.151 cvs 1013: fprintf (stderr, "content type is: %s\n", me->content_type);
1.88 cvs 1014: #endif /* DEBUG_LIBWWW */
1.151 cvs 1015: }
1016: }
1.114 cvs 1017:
1.115 cvs 1018: /* to avoid a hangup while downloading css files */
1.140 cvs 1019: if (AmayaAlive_flag && (me->mode & AMAYA_LOAD_CSS))
1.116 cvs 1020: TtaSetStatus (me->docid, 1,
1021: TtaGetMessage (AMAYA, AM_ELEMENT_LOADED),
1022: me->status_urlName);
1023:
1024: /* don't remove or Xt will hang up during the PUT */
1025: if (AmayaIsAlive () && ((me->method == METHOD_POST) ||
1026: (me->method == METHOD_PUT)))
1.7 cvs 1027: {
1.80 cvs 1028: PrintTerminateStatus (me, status);
1029: }
1.114 cvs 1030:
1.111 cvs 1031: ProcessTerminateRequest (request, response, context, status);
1.116 cvs 1032:
1.151 cvs 1033: /* stop here */
1.150 cvs 1034: return HT_ERROR;
1.4 cvs 1035: }
1036:
1.5 cvs 1037: /*----------------------------------------------------------------------
1.17 cvs 1038: AHTLoadTerminate_handler
1.74 cvs 1039: this is an application "AFTER" Callback. It's called by the library
1040: when a request has ended, so that we can setup the correct status.
1.5 cvs 1041: ----------------------------------------------------------------------*/
1.4 cvs 1042:
1043: #ifdef __STDC__
1.111 cvs 1044: int AHTLoadTerminate_handler (HTRequest * request, HTResponse * response, void *param, int status)
1.4 cvs 1045: #else
1.111 cvs 1046: int AHTLoadTerminate_handler (request, response, param, status)
1.4 cvs 1047: HTRequest *request;
1048: HTResponse *response;
1049: void *param;
1050: int status;
1.69 cvs 1051:
1.4 cvs 1052: #endif
1053: {
1.116 cvs 1054:
1055: /** @@@@ use this with printstatus ?? */
1056:
1.4 cvs 1057: AHTReqContext *me = HTRequest_context (request);
1058: HTAlertCallback *cbf;
1059: AHTDocId_Status *docid_status;
1060:
1.7 cvs 1061: switch (status)
1.116 cvs 1062: {
1063: case HT_LOADED:
1064: if (PROT_TRACE)
1065: HTTrace ("Load End.... OK: `%s\' has been accessed\n",
1066: me->status_urlName);
1.4 cvs 1067:
1.116 cvs 1068: docid_status = GetDocIdStatus (me->docid,
1069: Amaya->docid_status);
1.7 cvs 1070:
1.116 cvs 1071: if (docid_status != NULL && docid_status->counter > 1)
1072: TtaSetStatus (me->docid, 1,
1073: TtaGetMessage (AMAYA, AM_ELEMENT_LOADED),
1.74 cvs 1074: me->status_urlName);
1.7 cvs 1075: break;
1.116 cvs 1076:
1077: case HT_NO_DATA:
1078: if (PROT_TRACE)
1079: HTTrace ("Load End.... OK BUT NO DATA: `%s\'\n",
1080: me->status_urlName);
1081: TtaSetStatus (me->docid, 1,
1082: TtaGetMessage (AMAYA, AM_LOADED_NO_DATA),
1083: me->status_urlName);
1084: break;
1085:
1086: case HT_INTERRUPTED:
1087: if (PROT_TRACE)
1088: HTTrace ("Load End.... INTERRUPTED: `%s\'\n",
1089: me->status_urlName);
1090: TtaSetStatus (me->docid, 1,
1091: TtaGetMessage (AMAYA, AM_LOAD_ABORT),
1092: NULL);
1093: break;
1.7 cvs 1094:
1.116 cvs 1095: case HT_RETRY:
1096: if (PROT_TRACE)
1097: HTTrace ("Load End.... NOT AVAILABLE, RETRY AT %ld\n",
1098: HTResponse_retryTime (response));
1099: TtaSetStatus (me->docid, 1,
1100: TtaGetMessage (AMAYA, AM_NOT_AVAILABLE_RETRY),
1101: me->status_urlName);
1102: break;
1.7 cvs 1103:
1.116 cvs 1104: case HT_ERROR:
1105: cbf = HTAlert_find (HT_A_MESSAGE);
1106: if (cbf)
1107: (*cbf) (request, HT_A_MESSAGE, HT_MSG_NULL, NULL,
1108: HTRequest_error (request), NULL);
1109: break;
1110:
1111: if (PROT_TRACE)
1112: HTTrace ("Load End.... ERROR: Can't access `%s\'\n",
1113: me->status_urlName ? me->status_urlName :"<UNKNOWN>");
1114: TtaSetStatus (me->docid, 1,
1115: TtaGetMessage (AMAYA, AM_CANNOT_LOAD),
1116: me->status_urlName ? me->status_urlName : "<UNKNOWN>");
1117: break;
1118: default:
1119: if (PROT_TRACE)
1120: HTTrace ("Load End.... UNKNOWN RETURN CODE %d\n", status);
1121: break;
1122: }
1123:
1124: return HT_OK;
1125: }
1.7 cvs 1126:
1.116 cvs 1127: #ifdef DEBUG_LIBWWW
1128: static int LineTrace (const char * fmt, va_list pArgs)
1129: {
1130: return (vfprintf(stderr, fmt, pArgs));
1.4 cvs 1131: }
1.116 cvs 1132: #endif DEBUG_LIBWWW
1.4 cvs 1133:
1.27 cvs 1134: /*----------------------------------------------------------------------
1135: AHTAcceptTypesInit
1.74 cvs 1136: This function prepares the Accept header used by Amaya during
1137: the HTTP content negotiation phase
1.27 cvs 1138: ----------------------------------------------------------------------*/
1139: #ifdef __STDC__
1140: static void AHTAcceptTypesInit (HTList *c)
1141: #else /* __STDC__ */
1142: static void AHTAcceptTypesInit (c)
1143: HTList *c;
1144: #endif /* __STDC__ */
1145: {
1146: if (c == (HTList *) NULL)
1147: return;
1148:
1149: /* define here all the mime types that Amaya can accept */
1150:
1.74 cvs 1151: HTConversion_add (c, "image/png", "www/present",
1152: HTThroughLine, 1.0, 0.0, 0.0);
1153: HTConversion_add (c, "image/jpeg", "www/present",
1154: HTThroughLine, 1.0, 0.0, 0.0);
1155: HTConversion_add (c, "image/gif", "www/present",
1156: HTThroughLine, 1.0, 0.0, 0.0);
1157: HTConversion_add (c, "image/xbm", "www/present",
1158: HTThroughLine, 1.0, 0.0, 0.0);
1159: HTConversion_add (c, "image/xpm", "www/present",
1160: HTThroughLine, 1.0, 0.0, 0.0);
1161: HTConversion_add (c, "application/postscript",
1162: "www/present", HTThroughLine, 1.0, 0.0, 0.0);
1.4 cvs 1163:
1.27 cvs 1164: /* Define here the equivalences between MIME types and file extensions for
1165: the types that Amaya can display */
1166:
1167: /* Register the default set of file suffix bindings */
1168: HTFileInit ();
1169:
1170: /* Don't do any case distinction */
1171: HTBind_caseSensitive (FALSE);
1172: }
1.4 cvs 1173:
1.5 cvs 1174: /*----------------------------------------------------------------------
1.17 cvs 1175: AHTConverterInit
1176: Bindings between a source media type and a destination media type
1177: (conversion).
1.5 cvs 1178: ----------------------------------------------------------------------*/
1.15 cvs 1179: #ifdef __STDC__
1180: static void AHTConverterInit (HTList *c)
1181: #else /* __STDC__ */
1182: static void AHTConverterInit (c)
1183: HTList *c;
1184: #endif /* __STDC__ */
1.4 cvs 1185: {
1186:
1187: /* Handler for custom http error messages */
1.7 cvs 1188: HTConversion_add (c, "*/*", "www/debug", AHTMemConverter, 1.0, 0.0, 0.0);
1.4 cvs 1189:
1190: /*
1191: ** These are converters that converts to something other than www/present,
1192: ** that is not directly outputting someting to the user on the screen
1193: */
1194:
1.116 cvs 1195: HTConversion_add (c, "message/rfc822", "*/*", HTMIMEConvert,
1196: 1.0, 0.0, 0.0);
1.4 cvs 1197: HTConversion_add (c, "message/x-rfc822-foot", "*/*", HTMIMEFooter,
1198: 1.0, 0.0, 0.0);
1199: HTConversion_add (c, "message/x-rfc822-head", "*/*", HTMIMEHeader,
1200: 1.0, 0.0, 0.0);
1.116 cvs 1201: HTConversion_add(c,"message/x-rfc822-cont", "*/*", HTMIMEContinue,
1202: 1.0, 0.0, 0.0);
1203: HTConversion_add(c,"message/x-rfc822-partial","*/*", HTMIMEPartial,
1204: 1.0, 0.0, 0.0);
1.4 cvs 1205: HTConversion_add (c, "multipart/*", "*/*", HTBoundary,
1206: 1.0, 0.0, 0.0);
1207: HTConversion_add (c, "text/plain", "text/html", HTPlainToHTML,
1208: 1.0, 0.0, 0.0);
1209:
1210: /*
1.116 cvs 1211: ** The following conversions are converting ASCII output from various
1212: ** protocols to HTML objects.
1213: */
1.4 cvs 1214: HTConversion_add (c, "text/x-http", "*/*", HTTPStatus_new,
1215: 1.0, 0.0, 0.0);
1216:
1217: /*
1.116 cvs 1218: ** We also register a special content type guess stream that can figure out
1219: ** the content type by reading the first bytes of the stream
1220: */
1.4 cvs 1221: HTConversion_add (c, "www/unknown", "*/*", HTGuess_new,
1222: 1.0, 0.0, 0.0);
1223:
1.116 cvs 1224: #ifdef AMAYA_WWW_CACHE
1.4 cvs 1225: /*
1.116 cvs 1226: ** Register a persistent cache stream which can save an object to local
1227: ** file
1228: */
1.4 cvs 1229: HTConversion_add (c, "www/cache", "*/*", HTCacheWriter,
1230: 1.0, 0.0, 0.0);
1.116 cvs 1231: HTConversion_add(c,"www/cache-append", "*/*", HTCacheAppend,
1232: 1.0, 0.0, 0.0);
1233: #endif AMAYA_WWW_CACHE
1.4 cvs 1234:
1235: /*
1.116 cvs 1236: ** This dumps all other formats to local disk without any further
1237: ** action taken
1238: */
1.4 cvs 1239: HTConversion_add (c, "*/*", "www/present", HTSaveLocally,
1240: 0.3, 0.0, 0.0);
1.116 cvs 1241:
1.4 cvs 1242: }
1243:
1.27 cvs 1244:
1.15 cvs 1245: /*----------------------------------------------------------------------
1.17 cvs 1246: AHTProtocolInit
1247: Registers all amaya supported protocols.
1.15 cvs 1248: ----------------------------------------------------------------------*/
1.4 cvs 1249: static void AHTProtocolInit (void)
1250: {
1.116 cvs 1251: char *strptr;
1.4 cvs 1252:
1.116 cvs 1253: /*
1254: NB. Preemptive == YES means Blocking requests
1255: Non-preemptive == NO means Non-blocking requests
1256: */
1257: HTTransport_add("tcp", HT_TP_SINGLE, HTReader_new, HTWriter_new);
1258: HTTransport_add("buffered_tcp", HT_TP_SINGLE, HTReader_new,
1259: HTBufferWriter_new);
1260: HTProtocol_add ("http", "buffered_tcp", HTTP_PORT, NO, HTLoadHTTP, NULL);
1.136 cvs 1261: #ifdef _WINDOWS
1262: HTProtocol_add ("file", "local", 0, YES, HTLoadFile, NULL);
1263: #else
1.116 cvs 1264: HTProtocol_add ("file", "local", 0, NO, HTLoadFile, NULL);
1.136 cvs 1265: #endif _WINDOWS
1.116 cvs 1266: #ifdef AMAYA_WWW_CACHE
1267: HTProtocol_add("cache", "local", 0, YES, HTLoadCache, NULL);
1268: #endif /* AMAYA_WWW_CACHE */
1.103 cvs 1269: #if 0 /* experimental code */
1.116 cvs 1270: HTProtocol_add ("ftp", "tcp", FTP_PORT, NO, HTLoadFTP, NULL);
1.17 cvs 1271: #endif
1.116 cvs 1272:
1273: /* initialize pipelining */
1.152 cvs 1274: strptr = (char *) TtaGetEnvString ("USE_PIPELINING");
1.116 cvs 1275: if (strptr && *strptr && strcasecmp (strptr,"yes" ))
1276: HTTP_setConnectionMode (HTTP_11_NO_PIPELINING);
1.4 cvs 1277: }
1278:
1.15 cvs 1279: /*----------------------------------------------------------------------
1.17 cvs 1280: AHTNetInit
1281: Reegisters "before" and "after" request filters.
1.15 cvs 1282: ----------------------------------------------------------------------*/
1.4 cvs 1283: static void AHTNetInit (void)
1284: {
1285:
1286: /* Register BEFORE filters
1.74 cvs 1287: ** The BEFORE filters handle proxies, caches, rule files etc.
1288: ** The filters are called in the order by which the are registered
1289: ** Not done automaticly - may be done by application!
1290: */
1.4 cvs 1291:
1.116 cvs 1292: #ifdef AMAYA_WWW_CACHE
1293: HTNet_addBefore (HTCacheFilter, "http://*", NULL, HT_FILTER_MIDDLE);
1294: #endif /* AMAYA_WWW_CACHE */
1295: HTNet_addBefore (HTCredentialsFilter, "http://*", NULL, HT_FILTER_LATE);
1296: HTNet_addBefore (HTProxyFilter, NULL, NULL, HT_FILTER_LATE);
1.85 cvs 1297: HTHost_setActivateRequestCallback (AHTOpen_file);
1.4 cvs 1298:
1299: /* register AFTER filters
1.74 cvs 1300: ** The AFTER filters handle error messages, logging, redirection,
1301: ** authentication etc.
1302: ** The filters are called in the order by which the are registered
1303: ** Not done automaticly - may be done by application!
1304: */
1.4 cvs 1305:
1.116 cvs 1306: HTNet_addAfter (HTAuthFilter, "http://*", NULL, HT_NO_ACCESS,
1307: HT_FILTER_MIDDLE);
1308: HTNet_addAfter(HTAuthFilter, "http://*", NULL, HT_REAUTH,
1309: HT_FILTER_MIDDLE);
1310: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_PERM_REDIRECT,
1311: HT_FILTER_MIDDLE);
1312: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_FOUND,
1313: HT_FILTER_MIDDLE);
1314: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_SEE_OTHER,
1315: HT_FILTER_MIDDLE);
1316: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_TEMP_REDIRECT,
1317: HT_FILTER_MIDDLE);
1318: HTNet_addAfter (HTUseProxyFilter, "http://*", NULL, HT_USE_PROXY,
1319: HT_FILTER_MIDDLE);
1320: #ifdef AMAYA_WWW_CACHE
1321: HTNet_addAfter (HTCacheUpdateFilter, "http://*", NULL, HT_NOT_MODIFIED,
1322: HT_FILTER_MIDDLE);
1323: #endif /* AMAYA_WWW_CACHE */
1.151 cvs 1324: #ifdef AMAYA_LOST_UPDATE
1325: HTNet_addAfter (precondition_handler, NULL, NULL, HT_PRECONDITION_FAILED,
1326: HT_FILTER_MIDDLE);
1327: #endif /* AMAYA_LOST_UPDATE */
1.111 cvs 1328: #ifndef _WINDOWS
1.116 cvs 1329: HTNet_addAfter (AHTLoadTerminate_handler, NULL, NULL, HT_ALL,
1330: HT_FILTER_LAST);
1.111 cvs 1331: #endif /* !_WINDOWS */
1.116 cvs 1332: /**** for later ?? ****/
1333: /* HTNet_addAfter(HTInfoFilter, NULL, NULL, HT_ALL, HT_FILTER_LATE); */
1.51 cvs 1334: /* handles all errors */
1.116 cvs 1335: HTNet_addAfter (terminate_handler, NULL, NULL, HT_ALL, HT_FILTER_LAST);
1.4 cvs 1336: }
1337:
1.15 cvs 1338: /*----------------------------------------------------------------------
1.17 cvs 1339: AHTAlertInit
1340: Register alert messages and their callbacks.
1.15 cvs 1341: ----------------------------------------------------------------------*/
1342: #ifdef __STDC__
1343: static void AHTAlertInit (void)
1344: #else
1345: static void AHTAlertInit ()
1346: #endif
1347: {
1348: HTAlert_add (AHTProgress, HT_A_PROGRESS);
1.120 cvs 1349: #ifdef __WINDOWS
1.70 cvs 1350: HTAlert_add ((HTAlertCallback *) WIN_Activate_Request, HT_PROG_CONNECT);
1.116 cvs 1351: #endif /* _WINDOWS */
1.15 cvs 1352: HTAlert_add (AHTError_print, HT_A_MESSAGE);
1.48 cvs 1353: HTError_setShow (~((unsigned int) 0 ) & ~((unsigned int) HT_ERR_SHOW_DEBUG)); /* process all messages except debug ones*/
1.15 cvs 1354: HTAlert_add (AHTConfirm, HT_A_CONFIRM);
1355: HTAlert_add (AHTPrompt, HT_A_PROMPT);
1356: HTAlert_add (AHTPromptUsernameAndPassword, HT_A_USER_PW);
1.116 cvs 1357: }
1358:
1.128 cvs 1359: /*----------------------------------------------------------------------
1360: libwww_CleanCache
1361: frontend to the recursive cache cleaning function
1362: ----------------------------------------------------------------------*/
1363: #ifdef __STDC__
1364: void libwww_CleanCache (void)
1365: #else
1366: void libwww_CleanCache ()
1367: Document doc;
1368: View view;
1369: #endif /* __STDC__ */
1370: {
1.130 cvs 1371: #ifdef AMAYA_WWW_CACHE
1.128 cvs 1372: char *strptr;
1373: char *cache_dir;
1374: int cache_size;
1.130 cvs 1375:
1.128 cvs 1376: if (!HTCacheMode_enabled ())
1377: /* don't do anything if we're not using a cache */
1378: return;
1379: /* temporarily close down the cache, purge it, then restart */
1.130 cvs 1380: cache_dir = TtaStrdup ( (char *) HTCacheMode_getRoot ());
1.128 cvs 1381: cache_size = HTCacheMode_maxSize ();
1.130 cvs 1382: /* remove the concurrent cache lock */
1383: #ifdef DEBUG_LIBWWW
1384: fprintf (stderr, "Clearing the cache lock\n");
1385: #endif /* DEBUG_LIBWWW */
1386: clear_cachelock ();
1.128 cvs 1387: HTCacheTerminate ();
1.130 cvs 1388: HTCacheMode_setEnabled (NO);
1389: strptr = TtaGetMemory (strlen (cache_dir) + 20);
1.128 cvs 1390: strcpy (strptr, cache_dir);
1391: strcat (strptr, DIR_STR);
1392:
1393: RecCleanCache (strptr);
1394:
1.148 cvs 1395: HTCacheMode_setExpires (HT_EXPIRES_AUTO);
1.128 cvs 1396: HTCacheInit (cache_dir, cache_size);
1.130 cvs 1397: /* set a new concurrent cache lock */
1.132 cvs 1398: strcat (strptr, ".lock");
1.130 cvs 1399: if (set_cachelock (strptr) == -1)
1400: /* couldn't open the .lock file, so, we close the cache to
1401: be in the safe side */
1402: {
1403: #ifdef DEBUG_LIBWWW
1404: fprintf (stderr, "couldnt set the cache lock\n");
1405: #endif /* DEBUG_LIBWWW */
1406: HTCacheTerminate ();
1407: HTCacheMode_setEnabled (NO);
1408: }
1409: #ifdef DEBUG_LIBWWW
1410: fprintf (stderr, "set a cache lock\n");
1411: #endif /* DEBUG_LIBWWW */
1412: TtaFreeMemory (strptr);
1.128 cvs 1413: TtaFreeMemory (cache_dir);
1414: #endif /* AMAYA_WWW_CACHE */
1415: }
1416:
1.118 cvs 1417: #ifdef AMAYA_WWW_CACHE
1418: /*----------------------------------------------------------------------
1.128 cvs 1419: RecCleanCache
1.118 cvs 1420: Clears an existing cache directory
1421: ----------------------------------------------------------------------*/
1422: #ifdef __STDC__
1.128 cvs 1423: static void RecCleanCache (char *dirname)
1.118 cvs 1424: #else
1.128 cvs 1425: static void RecCleanCache (char *dirname)
1426: Document doc;
1427: View view;
1.118 cvs 1428: #endif /* __STDC__ */
1.128 cvs 1429:
1430: #ifdef _WINDOWS
1431: {
1432: HANDLE hFindFile;
1433: boolean status;
1434: WIN32_FIND_DATA ffd;
1435:
1436: char t_dir [MAX_LENGTH];
1.130 cvs 1437: char *ptr;
1.128 cvs 1438:
1.130 cvs 1439: /* create a t_dir name to start searching for files */
1.128 cvs 1440: if ((strlen (dirname) + 10) > MAX_LENGTH)
1441: /* ERROR: directory name is too big */
1442: return;
1443:
1444: strcpy (t_dir, dirname);
1.130 cvs 1445: /* save the end of the dirname. We'll use it to make
1446: a complete pathname when erasing files */
1447: ptr = &t_dir[strlen (t_dir)];
1448: strcat (t_dir, "*");
1.128 cvs 1449:
1.130 cvs 1450: hFindFile = FindFirstFile (t_dir, &ffd);
1.128 cvs 1451:
1452: if (hFindFile == INVALID_HANDLE_VALUE)
1453: /* nothing to erase? */
1454: return;
1455:
1456: status = TRUE;
1.130 cvs 1457: while (status)
1458: {
1459: if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
1.133 cvs 1460: {
1461: /* it's a directory, erase it recursively */
1462: if (strcmp (ffd.cFileName, "..") && strcmp (ffd.cFileName, "."))
1463: {
1464: strcpy (ptr, ffd.cFileName);
1465: strcat (ptr, DIR_STR);
1466: RecCleanCache (t_dir);
1.137 cvs 1467: # ifdef _WINDOWS
1468: _rmdir (t_dir);
1469: # else /* !_WINDOWS */
1.133 cvs 1470: rmdir (t_dir);
1.137 cvs 1471: # endif /* _WINDOWS */
1.133 cvs 1472: }
1473: }
1474: else
1.130 cvs 1475: {
1.133 cvs 1476: /* it's a file, erase it */
1.130 cvs 1477: strcpy (ptr, ffd.cFileName);
1.133 cvs 1478: TtaFileUnlink (t_dir);
1.130 cvs 1479: }
1480: status = FindNextFile (hFindFile, &ffd);
1481: }
1.128 cvs 1482: FindClose (hFindFile);
1483: }
1484:
1485: #else /* _WINDOWS */
1.118 cvs 1486: {
1487: DIR *dp;
1488: struct stat st;
1489: #ifdef HAVE_DIRENT_H
1490: struct dirent *d;
1491: #else
1492: struct direct *d;
1493: #endif /* HAVE_DIRENT_H */
1.128 cvs 1494: char filename[BUFSIZ+1];
1.118 cvs 1495:
1496: if ((dp = opendir (dirname)) == NULL)
1497: {
1498: /* @@@ we couldn't open the directory ... we need some msg */
1499: perror (dirname);
1500: exit;
1501: }
1502:
1503: while ((d = readdir (dp)) != NULL)
1504: {
1505: /* skip the UNIX . and .. links */
1506: if (!strcmp (d->d_name, "..")
1507: || !strcmp (d->d_name, "."))
1508: continue;
1509:
1.128 cvs 1510: sprintf (filename, "%s"DIR_STR"%s", dirname, d->d_name);
1.118 cvs 1511: if (lstat (filename, &st) < 0 )
1512: {
1513: /* @@2 need some error message */
1514: perror (filename);
1515: continue;
1516: }
1517:
1518: switch (st.st_mode & S_IFMT)
1519: {
1520: case S_IFDIR:
1521: /* if we find a directory, we erase it, recursively */
1.128 cvs 1522: strcat (filename, DIR_STR);
1523: RecCleanCache (filename);
1524: rmdir (filename);
1.118 cvs 1525: break;
1526: case S_IFLNK:
1527: /* skip any links we find */
1528: continue;
1529: break;
1530: default:
1531: /* erase the filename */
1532: TtaFileUnlink (filename);
1533: break;
1534: }
1535: }
1536: closedir (dp);
1537: }
1.128 cvs 1538: #endif /* _WINDOWS */
1.118 cvs 1539: #endif /* AMAYA_WWW_CACHE */
1540:
1.116 cvs 1541: /*----------------------------------------------------------------------
1542: CacheInit
1543: Reads the cache settings from the thot.ini file.
1544: ----------------------------------------------------------------------*/
1.118 cvs 1545: #ifdef __STDC__
1.116 cvs 1546: static void CacheInit (void)
1.118 cvs 1547: #else
1548: static void Cacheinit ()
1549: #endif
1550:
1.116 cvs 1551: {
1552: #ifndef AMAYA_WWW_CACHE
1553: HTCacheMode_setEnabled (NO);
1554:
1555: #else /* AMAYA_WWW_CACHE */
1556: char *strptr;
1557: char *cache_dir = NULL;
1.130 cvs 1558: char *cache_lockfile;
1559: int cache_size;
1560: boolean cache_enabled;
1561: boolean cache_locked;
1562:
1.116 cvs 1563: /* activate cache? */
1.152 cvs 1564: strptr = (char *) TtaGetEnvString ("USE_CACHE");
1565: if (strptr && *strptr && strcasecmp (strptr, "yes" ))
1.130 cvs 1566: cache_enabled = NO;
1.116 cvs 1567: else
1.130 cvs 1568: cache_enabled = YES;
1.116 cvs 1569:
1.151 cvs 1570: /* cache protected documents? */
1.152 cvs 1571: strptr = (char *) TtaGetEnvString ("CACHE_PROTECTED_DOCS");
1572: if (strptr && *strptr && !strcasecmp (strptr, "yes" ))
1.151 cvs 1573: HTCacheMode_setProtected (YES);
1574: else
1575: HTCacheMode_setProtected (NO);
1576:
1.116 cvs 1577: /* get the cache dir (or use a default one) */
1578: strptr = (char *) TtaGetEnvString ("CACHE_DIR");
1579: if (strptr && *strptr)
1580: {
1581: cache_dir = TtaGetMemory (strlen (strptr) + strlen (CACHE_DIR_NAME) + 1);
1582: strcpy (cache_dir, strptr);
1583: }
1584: else
1585: {
1.122 cvs 1586: cache_dir = TtaGetMemory (strlen (TempFileDirectory)
1.116 cvs 1587: + strlen (CACHE_DIR_NAME) + 1);
1.122 cvs 1588: strcpy (cache_dir, TempFileDirectory);
1.116 cvs 1589: }
1590: strcat (cache_dir, CACHE_DIR_NAME);
1591:
1592: /* get the cache size (or use a default one) */
1593: strptr = (char *) TtaGetEnvString ("CACHE_SIZE");
1594: if (strptr && *strptr)
1595: cache_size = atoi (strptr);
1596: else
1597: cache_size = DEFAULT_CACHE_SIZE;
1598:
1.130 cvs 1599: if (cache_enabled)
1.116 cvs 1600: {
1601: /* how to remove the lock? force remove it? */
1.130 cvs 1602: cache_lockfile = TtaGetMemory (strlen (cache_dir) + 20);
1603: strcpy (cache_lockfile, cache_dir);
1604: strcat (cache_lockfile, DIR_STR".lock");
1605: cache_locked = FALSE;
1606: if (TtaFileExist (cache_lockfile)
1607: && !(cache_locked = test_cachelock (cache_lockfile)))
1.116 cvs 1608: {
1.130 cvs 1609: #ifdef DEBUG_LIBWWW
1610: fprintf (stderr, "found a stale cache, removing it\n");
1611: #endif /* DEBUG_LIBWWW */
1612: /* remove the lock and clean the cache (the clean cache
1613: will remove all, making the following call unnecessary */
1614: /* little trick to win some memory */
1615: strptr = strrchr (cache_lockfile, '.');
1616: *strptr = EOS;
1617: RecCleanCache (cache_lockfile);
1618: *strptr = '.';
1.116 cvs 1619: }
1620:
1.130 cvs 1621: if (!cache_locked)
1622: {
1623: /* initialize the cache if there's no other amaya
1624: instance running */
1625: HTCacheInit (cache_dir, cache_size);
1.148 cvs 1626: HTCacheMode_setExpires (HT_EXPIRES_AUTO);
1.130 cvs 1627: if (set_cachelock (cache_lockfile) == -1)
1628: /* couldn't open the .lock file, so, we close the cache to
1629: be in the safe side */
1630: {
1631: HTCacheTerminate ();
1632: HTCacheMode_setEnabled (NO);
1633: #ifdef DEBUG_LIBWWW
1634: fprintf (stderr, "couldnt set the cache lock\n");
1635: #endif /* DEBUG_LIBWWW */
1636: }
1637: #ifdef DEBUG_LIBWWW
1638: else
1639: fprintf (stderr, "created the cache lock\n");
1640: #endif /* DEBUG_LIBWWW */
1641: }
1642: else
1643: {
1644: HTCacheMode_setEnabled (NO);
1645: #ifdef DEBUG_LIBWWW
1646: fprintf (stderr, "lock detected, starting libwww without a cache/n");
1647: #endif /* DEBUG_LIBWWW */
1648: }
1649: TtaFreeMemory (cache_lockfile);
1.116 cvs 1650: }
1651: else
1652: HTCacheMode_setEnabled (NO);
1653:
1654: if (cache_dir)
1655: TtaFreeMemory (cache_dir);
1656: #endif /* AMAYA_WWW_CACHE */
1.15 cvs 1657: }
1658:
1659: /*----------------------------------------------------------------------
1.97 cvs 1660: ProxyInit
1661: Reads any proxies settings which may be declared as environmental
1662: variables or in the thot.ini file. The former overrides the latter.
1663: ----------------------------------------------------------------------*/
1.118 cvs 1664: #ifdef __STDC__
1.97 cvs 1665: static void ProxyInit (void)
1.118 cvs 1666: #else
1667: static void ProxyInit ()
1668: #endif /* __STDC__ */
1.97 cvs 1669: {
1670: char *strptr;
1671: char *str = NULL;
1672: char *name;
1673:
1674: /* get the proxy settings from the thot.ini file */
1675: strptr = (char *) TtaGetEnvString ("HTTP_PROXY");
1676: if (strptr && *strptr)
1677: HTProxy_add ("http", strptr);
1678: /* get the no_proxy settings from the thot.ini file */
1679: strptr = (char *) TtaGetEnvString ("NO_PROXY");
1680: if (strptr && *strptr)
1681: {
1682: str = TtaStrdup (strptr); /* Get copy we can mutilate */
1683: strptr = str;
1684: while ((name = HTNextField (&strptr)) != NULL) {
1685: char *portstr = strchr (name, ':');
1686: unsigned port=0;
1687: if (portstr) {
1688: *portstr++ = '\0';
1.116 cvs 1689: if (*portstr) port = (unsigned) atoi (portstr);
1.97 cvs 1690: }
1691: /* Register it for all access methods */
1692: HTNoProxy_add (name, NULL, port);
1693: }
1694: TtaFreeMemory (str);
1695: }
1696:
1697: /* use libw3's routine to get all proxy settings from the environment */
1698: HTProxy_getEnvVar ();
1699: }
1700:
1701:
1702: /*----------------------------------------------------------------------
1.17 cvs 1703: AHTProfile_newAmaya
1704: creates the Amaya client profile for libwww.
1.15 cvs 1705: ----------------------------------------------------------------------*/
1706: #ifdef __STDC__
1707: static void AHTProfile_newAmaya (char *AppName, char *AppVersion)
1708: #else /* __STDC__ */
1709: static void AHTProfile_newAmaya (AppName, AppVersion)
1710: char *AppName;
1711: char *AppVersion;
1712: #endif /* __STDC__ */
1.4 cvs 1713: {
1.158 cvs 1714: char * strptr;
1715:
1.4 cvs 1716: /* If the Library is not already initialized then do it */
1717: if (!HTLib_isInitialized ())
1718: HTLibInit (AppName, AppVersion);
1719:
1720: if (!converters)
1721: converters = HTList_new ();
1.27 cvs 1722: if (!acceptTypes)
1723: acceptTypes = HTList_new ();
1.151 cvs 1724: if (!transfer_encodings)
1725: transfer_encodings = HTList_new ();
1726: if (!content_encodings)
1727: content_encodings = HTList_new ();
1.4 cvs 1728:
1729: /* Register the default set of transport protocols */
1730: HTTransportInit ();
1731:
1732: /* Register the default set of application protocol modules */
1733: AHTProtocolInit ();
1734:
1.116 cvs 1735: /* Register the default set of messages and dialog functions */
1736: AHTAlertInit ();
1737: HTAlert_setInteractive (YES);
1738:
1739: #ifdef AMAYA_WWW_CACHE
1740: /* Enable the persistent cache */
1741: CacheInit ();
1742: #else
1743: HTCacheMode_setEnabled (NO);
1744: #endif /* AMAYA_WWW_CACHE */
1.4 cvs 1745:
1746: /* Register the default set of BEFORE and AFTER filters */
1747: AHTNetInit ();
1748:
1749: /* Set up the default set of Authentication schemes */
1750: HTAAInit ();
1.158 cvs 1751: /* activate MDA by defaul */
1752: strptr = (char *) TtaGetEnvString ("ENABLE_MDA");
1753: if (!strptr || (strptr && *strptr && strcasecmp (strptr, "no" )))
1754: HTAA_newModule ("digest", HTDigest_generate, HTDigest_parse,
1755: HTDigest_delete);
1.4 cvs 1756:
1.97 cvs 1757: /* Get any proxy settings */
1758: ProxyInit ();
1.4 cvs 1759:
1760: /* Register the default set of converters */
1761: AHTConverterInit (converters);
1.151 cvs 1762: HTFormat_setConversion (converters);
1.27 cvs 1763: AHTAcceptTypesInit (acceptTypes);
1.4 cvs 1764:
1765: /* Register the default set of transfer encoders and decoders */
1.151 cvs 1766: HTTransferEncoderInit (transfer_encodings);
1767: HTFormat_setTransferCoding(transfer_encodings);
1768:
1769: /* Register the default set of content encoders and decoders */
1770: HTContentEncoderInit(content_encodings);
1771: if (HTList_count(content_encodings) > 0)
1772: HTFormat_setContentCoding(content_encodings);
1773: else
1774: {
1775: HTList_delete(content_encodings);
1776: content_encodings = NULL;
1777: }
1.4 cvs 1778:
1779: /* Register the default set of MIME header parsers */
1.74 cvs 1780: HTMIMEInit (); /* must be called again for language selector */
1.4 cvs 1781:
1782: /* Register the default set of Icons for directory listings */
1.27 cvs 1783: /*HTIconInit(NULL); *//* experimental */
1.4 cvs 1784: }
1785:
1.5 cvs 1786: /*----------------------------------------------------------------------
1.17 cvs 1787: AHTProfile_delete
1788: deletes the Amaya client profile.
1.5 cvs 1789: ----------------------------------------------------------------------*/
1.4 cvs 1790: #ifdef __STDC__
1791: static void AHTProfile_delete (void)
1792: #else
1793: static void AHTProfile_delete ()
1.7 cvs 1794: #endif /* __STDC__ */
1.4 cvs 1795: {
1.22 cvs 1796:
1797: /* free the Amaya global context */
1.151 cvs 1798:
1799: /* Clean up all the registred converters */
1800: HTFormat_deleteAll ();
1801: if (acceptTypes)
1.74 cvs 1802: HTConversion_deleteAll (acceptTypes);
1.151 cvs 1803:
1.74 cvs 1804: HTList_delete (Amaya->docid_status);
1805: HTList_delete (Amaya->reqlist);
1806: TtaFreeMemory (Amaya);
1.61 cvs 1807:
1.151 cvs 1808: if (HTLib_isInitialized ())
1.74 cvs 1809:
1.120 cvs 1810: #ifdef _WINDOWS
1.151 cvs 1811: HTEventTerminate ();
1.120 cvs 1812: #endif _WINDOWS;
1.74 cvs 1813:
1.151 cvs 1814: /* Clean up the persistent cache (if any) */
1.116 cvs 1815: #ifdef AMAYA_WWW_CACHE
1.151 cvs 1816: clear_cachelock ();
1817: HTCacheTerminate ();
1.116 cvs 1818: #endif /* AMAYA_WWW_CACHE */
1.74 cvs 1819:
1.151 cvs 1820: /* Terminate libwww */
1821: HTLibTerminate ();
1.4 cvs 1822: }
1823:
1.5 cvs 1824: /*----------------------------------------------------------------------
1.116 cvs 1825: AmayacontextInit
1826: initializes an internal Amaya context for our libwww interface
1827: ----------------------------------------------------------------------*/
1828: #ifdef __STDC__
1829: static void AmayaContextInit ()
1830: #else
1831: static void AmayaContextInit ()
1832: #endif
1833:
1834: {
1.140 cvs 1835: AmayaAlive_flag = TRUE;
1.116 cvs 1836: /* Initialization of the global context */
1837: Amaya = (AmayaContext *) TtaGetMemory (sizeof (AmayaContext));
1838: Amaya->reqlist = HTList_new ();
1839: Amaya->docid_status = HTList_new ();
1840: Amaya->open_requests = 0;
1841: }
1842:
1843: /*----------------------------------------------------------------------
1.17 cvs 1844: QueryInit
1845: initializes the libwww interface
1.5 cvs 1846: ----------------------------------------------------------------------*/
1.4 cvs 1847: #ifdef __STDC__
1848: void QueryInit ()
1849: #else
1850: void QueryInit ()
1851: #endif
1852: {
1.151 cvs 1853: char *strptr;
1854: int tmp_i;
1855: long tmp_l;
1.4 cvs 1856:
1.116 cvs 1857: AmayaContextInit ();
1.4 cvs 1858: AHTProfile_newAmaya (HTAppName, HTAppVersion);
1.140 cvs 1859: CanDoStop_set (TRUE);
1.4 cvs 1860:
1.116 cvs 1861: #ifdef _WINDOWS
1.125 cvs 1862: HTEventInit ();
1.116 cvs 1863: #endif /* _WINDOWS */
1.72 cvs 1864:
1.123 cvs 1865: #ifndef _WINDOWS
1.116 cvs 1866: HTEvent_setRegisterCallback ((void *) AHTEvent_register);
1867: HTEvent_setUnregisterCallback ((void *) AHTEvent_unregister);
1.120 cvs 1868: HTTimer_registerSetTimerCallback ((void *) AMAYA_SetTimer);
1869: HTTimer_registerDeleteTimerCallback ((void *) AMAYA_DeleteTimer);
1.116 cvs 1870: #endif /* !_WINDOWS */
1.148 cvs 1871:
1.152 cvs 1872: WWW_TraceFlag = CACHE_TRACE;
1.74 cvs 1873: #ifdef DEBUG_LIBWWW
1.116 cvs 1874: /* forwards error messages to our own function */
1875: WWW_TraceFlag = THD_TRACE;
1.138 cvs 1876: HTTrace_setCallback(LineTrace);
1.4 cvs 1877: /* Trace activation (for debugging) */
1.148 cvs 1878: /***
1.138 cvs 1879: WWW_TraceFlag = SHOW_CORE_TRACE | SHOW_THREAD_TRACE | SHOW_PROTOCOL_TRACE;
1880: WWW_TraceFlag |= 0xFFFFFFFFl;
1881: ***/
1.152 cvs 1882: #endif
1883:
1.148 cvs 1884: /* Setting up different network parameters */
1.151 cvs 1885:
1.148 cvs 1886: /* Maximum number of simultaneous open sockets */
1.151 cvs 1887: strptr = (char *) TtaGetEnvString ("MAX_SOCKET");
1888: if (strptr && *strptr)
1889: tmp_i = atoi (strptr);
1890: else
1891: tmp_i = DEFAULT_MAX_SOCKET;
1892: HTNet_setMaxSocket (tmp_i);
1893:
1.148 cvs 1894: /* different network services timeouts */
1.151 cvs 1895: /* dns timeout */
1896: strptr = (char *) TtaGetEnvString ("DNS_TIMEOUT");
1897: if (strptr && *strptr)
1898: tmp_i = atoi (strptr);
1899: else
1900: tmp_i = DEFAULT_DNS_TIMEOUT;
1901: HTDNS_setTimeout (tmp_i);
1902:
1903: /* persistent connections timeout */
1.152 cvs 1904: strptr = (char *) TtaGetEnvString ("PERSIST_CX_TIMEOUT");
1.151 cvs 1905: if (strptr && *strptr)
1906: tmp_l = atol (strptr);
1907: else
1908: tmp_l = DEFAULT_PERSIST_TIMEOUT;
1909: HTHost_setPersistTimeout (tmp_l);
1910:
1.148 cvs 1911: /* default timeout in ms */
1.151 cvs 1912: strptr = (char *) TtaGetEnvString ("NET_EVENT_TIMEOUT");
1913: if (strptr && *strptr)
1914: tmp_i = atoi (strptr);
1915: else
1916: tmp_i = DEFAULT_NET_EVENT_TIMEOUT;
1917: HTHost_setEventTimeout (tmp_i);
1918:
1.4 cvs 1919: #ifdef CATCH_SIG
1.148 cvs 1920: signal (SIGPIPE, SIG_IGN);
1.4 cvs 1921: #endif
1.15 cvs 1922: }
1923:
1924: /*----------------------------------------------------------------------
1.17 cvs 1925: LoopForStop
1.136 cvs 1926: a copy of the Thop event loop so we can handle the stop button in Unix
1927: and preemptive requests under Windows
1.15 cvs 1928: ----------------------------------------------------------------------*/
1929: #ifdef __STDC__
1930: static int LoopForStop (AHTReqContext * me)
1931: #else
1932: static int LoopForStop (AHTReqContext * me)
1933: #endif
1934: {
1.136 cvs 1935: #ifdef _WINDOWS
1936: MSG msg;
1937: unsigned long libwww_msg;
1938: HWND old_active_window, libwww_window;
1939: int status_req = HT_OK;
1940:
1941: old_active_window = GetActiveWindow ();
1942: libwww_window = HTEventList_getWinHandle (&libwww_msg);
1.137 cvs 1943:
1.149 cvs 1944: while (me->reqStatus != HT_END && me->reqStatus != HT_ERR
1945: && me->reqStatus != HT_ABORT && AmayaIsAlive () &&
1946: GetMessage (&msg, NULL, 0, 0))
1947: {
1948: if (msg.message != WM_QUIT)
1949: {
1950: TranslateMessage (&msg);
1951: DispatchMessage (&msg);
1952: }
1953: else
1954: break;
1955: }
1.136 cvs 1956: if (!AmayaIsAlive ())
1957: /* Amaya was killed by one of the callback handlers */
1958: exit (0);
1959: #else /* _WINDOWS */
1.25 cvs 1960: extern ThotAppContext app_cont;
1.51 cvs 1961: XEvent ev;
1962: XtInputMask status;
1.17 cvs 1963: int status_req = HT_OK;
1.15 cvs 1964:
1965: /* to test the async calls */
1.17 cvs 1966: /* Loop while waiting for new events, exists when the request is over */
1.15 cvs 1967: while (me->reqStatus != HT_ABORT &&
1968: me->reqStatus != HT_END &&
1.69 cvs 1969: me->reqStatus != HT_ERR) {
1.116 cvs 1970: if (!AmayaIsAlive ())
1.69 cvs 1971: /* Amaya was killed by one of the callback handlers */
1972: exit (0);
1973:
1974: status = XtAppPending (app_cont);
1.144 cvs 1975: if (status & XtIMXEvent)
1976: {
1977: XtAppNextEvent (app_cont, &ev);
1978: TtaHandleOneEvent (&ev);
1979: }
1980: else if (status != 0)
1981: XtAppProcessEvent (app_cont, XtIMAll);
1.69 cvs 1982: }
1.136 cvs 1983: #endif /* _WINDOWS */
1.69 cvs 1984: switch (me->reqStatus) {
1985: case HT_ERR:
1986: case HT_ABORT:
1.130 cvs 1987: status_req = NO;
1.15 cvs 1988: break;
1989:
1.69 cvs 1990: case HT_END:
1.130 cvs 1991: status_req = YES;
1.15 cvs 1992: break;
1993:
1.69 cvs 1994: default:
1.15 cvs 1995: break;
1.69 cvs 1996: }
1.15 cvs 1997: return (status_req);
1.4 cvs 1998: }
1999:
1.5 cvs 2000: /*----------------------------------------------------------------------
1.15 cvs 2001: QueryClose
1.21 cvs 2002: closes all existing threads, frees all non-automatically deallocated
2003: memory and then ends libwww.
1.5 cvs 2004: ----------------------------------------------------------------------*/
1.116 cvs 2005: void QueryClose ()
1.4 cvs 2006: {
1.24 cvs 2007:
1.140 cvs 2008: AmayaAlive_flag = FALSE;
1.24 cvs 2009:
1.116 cvs 2010: /* remove all the handlers and callbacks that may output a message to
2011: a non-existent Amaya window */
1.130 cvs 2012: #ifndef _WINDOWS
1.116 cvs 2013: HTNet_deleteAfter (AHTLoadTerminate_handler);
1.130 cvs 2014: #endif _WINDOWS
1.116 cvs 2015: HTNet_deleteAfter (redirection_handler);
2016: HTAlertCall_deleteAll (HTAlert_global () );
2017: HTAlert_setGlobal ((HTList *) NULL);
2018: HTEvent_setRegisterCallback ((HTEvent_registerCallback *) NULL);
2019: HTEvent_setUnregisterCallback ((HTEvent_unregisterCallback *) NULL);
2020: #ifndef _WINDOWS
2021: /** need to erase all existing timers too **/
2022: HTTimer_registerSetTimerCallback (NULL);
2023: HTTimer_registerDeleteTimerCallback (NULL);
2024: #endif /* !_WINDOWS */
2025: HTHost_setActivateRequestCallback (NULL);
2026: Thread_deleteAll ();
1.21 cvs 2027:
1.116 cvs 2028: HTProxy_deleteAll ();
2029: HTNoProxy_deleteAll ();
2030: HTGateway_deleteAll ();
2031: AHTProfile_delete ();
2032: }
2033:
2034: /*----------------------------------------------------------------------
2035: NextNameValue
2036: ---------------------------------------------------------------------*/
2037: #ifdef __STDC__
2038: static char * NextNameValue (char ** pstr, char **name, char **value)
2039: #else
2040: static char * NextNameValue (pstr, name, value);
2041: char ** pstr;
2042: char **name;
2043: char **value;
2044: #endif /* __STDC__ */
2045: {
2046: char * p = *pstr;
2047: char * start = NULL;
2048: if (!pstr || !*pstr) return NULL;
2049:
2050: if (!*p) {
2051: *pstr = p;
2052: *name = NULL;
2053: *value = NULL;
2054: return NULL; /* No field */
2055: }
2056:
2057: /* Now search for the next '&' and ';' delimitators */
2058: start = p;
2059: while (*p && *p != '&' && *p != ';') p++;
2060: if (*p)
2061: *p++ = '\0';
2062: *pstr = p;
2063:
2064: /* Search for the name and value */
2065: *name = start;
2066: p = start;
2067:
2068: while(*p && *p != '=')
2069: p++;
2070: if (*p)
2071: *p++ = '\0';
2072: *value = p;
2073:
2074: return start;
2075: }
2076:
2077: /*----------------------------------------------------------------------
2078: PrepareFormdata
2079: ---------------------------------------------------------------------*/
2080: #ifdef __STDC__
2081: static HTAssocList * PrepareFormdata (char *string)
2082: #else
2083: static HTAssocList * PrepareFormdata (string)
2084: char *string;
2085: #endif /* __STDC__ */
2086: {
2087: char * tmp_string, * tmp_string_ptr;
2088: char * name;
2089: char * value;
2090: HTAssocList * formdata;
2091:
2092: if (!string)
2093: return NULL;
2094:
2095: /* store the ptr in another variable, as the original address will
2096: change
2097: */
2098:
2099: tmp_string_ptr = tmp_string = TtaStrdup (string);
2100: formdata = HTAssocList_new();
2101:
2102: while (*tmp_string)
2103: {
2104: NextNameValue (&tmp_string, &name, &value);
2105: HTAssocList_addObject(formdata,
2106: name, value);
2107: }
2108:
2109: TtaFreeMemory (tmp_string_ptr);
2110: return formdata;
1.4 cvs 2111: }
2112:
1.99 cvs 2113:
2114: /*----------------------------------------------------------------------
2115: InvokeGetObjectWWW_callback
2116: A simple function to invoke a callback function whenever there's an error
2117: in GetObjectWWW
2118: ---------------------------------------------------------------------*/
2119:
1.116 cvs 2120: #ifdef __STDC__
2121: void InvokeGetObjectWWW_callback (int docid, char *urlName, char *outputfile, TTcbf *terminate_cbf, void *context_tcbf, int status)
1.99 cvs 2122: #else
1.111 cvs 2123: void InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf, context_tcbf, status)
1.99 cvs 2124: int docid;
2125: char *urlName;
2126: char *outputfile;
2127: TTcbf *terminate_cbf;
2128: void *context_tcbf;
1.116 cvs 2129: #endif /* __STDC__ */
1.99 cvs 2130: {
2131: if (!terminate_cbf)
2132: return;
2133:
1.116 cvs 2134: (*terminate_cbf) (docid, status, urlName, outputfile,
1.99 cvs 2135: NULL, context_tcbf);
2136: }
2137:
2138:
2139:
1.5 cvs 2140: /*----------------------------------------------------------------------
1.15 cvs 2141: GetObjectWWW
1.17 cvs 2142: this function requests a resource designated by a URLname into a
2143: temporary filename. The download can come from a simple GET operation,
2144: or can come from POSTING/GETTING a form. In the latter
2145: case, the function receives a query string to send to the server.
2146:
1.5 cvs 2147: 4 file retrieval modes are proposed:
2148: AMAYA_SYNC : blocking mode
2149: AMAYA_ISYNC : incremental, blocking mode
2150: AMAYA_ASYNC : non-blocking mode
2151: AMAYA_IASYNC : incremental, non-blocking mode
2152:
2153: In the incremental mode, each time a package arrives, it will be
2154: stored in the temporary file. In addition, if an
2155: incremental_callback function is defined, this function will be
2156: called and handled a copy of the newly received data package.
2157: Finally, if a terminate_callback function is defined, it will be
2158: invoked when the request terminates. The caller of this function
1.4 cvs 2159: can define two different contexts to be passed to the callback
2160: functions.
2161:
2162: When the function is called with the SYNC mode, the function will
2163: return only when the requested file has been loaded.
2164: The ASYNC mode will immediately return after setting up the
2165: call.
2166:
2167: Notes:
2168: At the end of a succesful request, the urlName string contains the
2169: name of the actually retrieved URL. As a URL can change over the time,
2170: (e.g., be redirected elsewhere), it is advised that the function
1.17 cvs 2171: caller verify the value of the urlName variable at the end of
1.4 cvs 2172: a request.
2173:
2174: Inputs:
2175: - docid Document identifier for the set of objects being
2176: retrieved.
2177: - urlName The URL to be retrieved (MAX_URL_LENGTH chars length)
2178: - outputfile A pointer to an empty string of MAX_URL_LENGTH.
2179: - mode The retrieval mode.
2180: - incremental_cbf
2181: - context_icbf
2182: Callback and context for the incremental modes
2183: - terminate_cbf
2184: - context_icbf
2185: Callback and context for a terminate handler
1.17 cvs 2186: -error_html if TRUE, then display any server error message as an
2187: HTML document.
1.88 cvs 2188: - content_type a string
2189:
1.4 cvs 2190: Outputs:
2191: - urlName The URL that was retrieved
2192: - outputfile The name of the temporary file which holds the
2193: retrieved data. (Only in case of success)
1.88 cvs 2194: - if content_type wasn't NULL, it will contain a copy of the parameter
2195: sent in the HTTP answer
1.4 cvs 2196: Returns:
2197: HT_ERROR
2198: HT_OK
1.5 cvs 2199:
2200: ----------------------------------------------------------------------*/
1.4 cvs 2201: #ifdef __STDC__
1.127 cvs 2202: int GetObjectWWW (int docid, char* urlName, char* formdata,
1.116 cvs 2203: char* outputfile, int mode, TIcbf* incremental_cbf,
2204: void* context_icbf, TTcbf* terminate_cbf,
1.88 cvs 2205: void* context_tcbf, boolean error_html, char *content_type)
1.4 cvs 2206: #else
1.127 cvs 2207: int GetObjectWWW (docid, urlName, formdata, outputfile, mode,
1.116 cvs 2208: incremental_cbf, context_icbf,
1.88 cvs 2209: terminate_cbf, context_tcbf, error_html, content_type)
1.73 cvs 2210: int docid;
2211: char *urlName;
1.127 cvs 2212: char *formdata;
1.73 cvs 2213: char *outputfile;
2214: int mode;
2215: TIcbf *incremental_cbf;
2216: void *context_icbf;
2217: TTcbf *terminate_cbf;
2218: void *context_tcbf;
2219: boolean error_html;
1.88 cvs 2220: char *content_type;
1.4 cvs 2221: #endif
2222: {
2223: AHTReqContext *me;
2224: char *ref;
1.107 cvs 2225: int status, l;
1.114 cvs 2226: int tempsubdir;
1.7 cvs 2227:
1.116 cvs 2228: if (urlName == NULL || docid == 0 || outputfile == NULL)
2229: {
2230: /* no file to be loaded */
2231: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_BAD_URL), urlName);
1.69 cvs 2232:
1.116 cvs 2233: if (error_html)
1.69 cvs 2234: /* so we can show the error message */
2235: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.116 cvs 2236: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
2237: context_tcbf, HT_ERROR);
2238: return HT_ERROR;
2239: }
1.7 cvs 2240:
1.159 cvs 2241: /* if it's a 'docImage', we have already downloaded it */
2242: if (!strncmp ("internal:", urlName, 9))
2243: {
2244: strcpy (outputfile, urlName);
2245: InvokeGetObjectWWW_callback (docid, urlName, outputfile,
2246: terminate_cbf, context_tcbf, HT_OK);
2247: return HT_OK;
2248: }
2249:
1.4 cvs 2250: /* do we support this protocol? */
1.116 cvs 2251: if (IsValidProtocol (urlName) == NO)
2252: {
2253: /* return error */
2254: outputfile[0] = EOS; /* file could not be opened */
2255: TtaSetStatus (docid, 1,
2256: TtaGetMessage (AMAYA, AM_GET_UNSUPPORTED_PROTOCOL),
2257: urlName);
2258:
2259: if (error_html)
1.69 cvs 2260: /* so we can show the error message */
2261: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.116 cvs 2262: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
2263: context_tcbf, HT_ERROR);
2264: return HT_ERROR;
2265: }
1.4 cvs 2266:
1.114 cvs 2267: /* we store CSS in subdir named 0; all the other files go to a subidr
2268: named after their own docid */
2269:
2270: tempsubdir = (mode & AMAYA_LOAD_CSS) ? 0 : docid;
2271:
1.116 cvs 2272: /* create a tempfilename */
2273: sprintf (outputfile, "%s%c%d%c%04dAM",
2274: TempFileDirectory, DIR_SEP, tempsubdir, DIR_SEP, object_counter);
2275: /* update the object_counter (used for the tempfilename) */
1.4 cvs 2276: object_counter++;
1.116 cvs 2277:
1.4 cvs 2278: /* normalize the URL */
1.45 cvs 2279: ref = AmayaParseUrl (urlName, "", AMAYA_PARSE_ALL);
1.4 cvs 2280: /* should we abort the request if we could not normalize the url? */
1.69 cvs 2281: if (ref == (char*) NULL || ref[0] == EOS) {
2282: /*error */
2283: outputfile[0] = EOS;
2284: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_BAD_URL), urlName);
2285:
2286: if (error_html)
1.116 cvs 2287: /* so we can show the error message */
2288: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.99 cvs 2289: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
1.116 cvs 2290: context_tcbf, HT_ERROR);
1.69 cvs 2291: return HT_ERROR;
2292: }
1.116 cvs 2293:
1.4 cvs 2294: /* verify if that file name existed */
1.9 cvs 2295: if (TtaFileExist (outputfile))
1.77 cvs 2296: TtaFileUnlink (outputfile);
1.116 cvs 2297:
1.4 cvs 2298: /* Initialize the request structure */
2299: me = AHTReqContext_new (docid);
1.116 cvs 2300: if (me == NULL)
2301: {
2302: outputfile[0] = EOS;
2303: /* need an error message here */
2304: TtaFreeMemory (ref);
2305: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
2306: context_tcbf, HT_ERROR);
2307: return HT_ERROR;
2308: }
2309:
1.4 cvs 2310: /* Specific initializations for POST and GET */
1.116 cvs 2311: if (mode & AMAYA_FORM_POST)
2312: {
2313: me->method = METHOD_POST;
2314: HTRequest_setMethod (me->request, METHOD_POST);
2315: }
2316: else
2317: {
2318: me->method = METHOD_GET;
2319: if (!HasKnownFileSuffix (ref))
2320: HTRequest_setConversion(me->request, acceptTypes, TRUE);
2321: }
1.93 cvs 2322:
1.116 cvs 2323: /* Common initialization for all HTML methods */
1.4 cvs 2324: me->mode = mode;
2325: me->error_html = error_html;
2326: me->incremental_cbf = incremental_cbf;
2327: me->context_icbf = context_icbf;
2328: me->terminate_cbf = terminate_cbf;
2329: me->context_tcbf = context_tcbf;
1.64 cvs 2330:
1.69 cvs 2331: /* for the async. request modes, we need to have our
1.4 cvs 2332: own copy of outputfile and urlname
1.116 cvs 2333: */
1.4 cvs 2334:
1.116 cvs 2335: if ((mode & AMAYA_ASYNC) || (mode & AMAYA_IASYNC))
2336: {
2337: l = strlen (outputfile);
2338: if (l > MAX_LENGTH)
2339: me->outputfile = TtaGetMemory (l + 2);
2340: else
2341: me->outputfile = TtaGetMemory (MAX_LENGTH + 2);
2342: strcpy (me->outputfile, outputfile);
2343: l = strlen (urlName);
2344: if (l > MAX_LENGTH)
2345: me->urlName = TtaGetMemory (l + 2);
2346: else
2347: me->urlName = TtaGetMemory (MAX_LENGTH + 2);
2348: strcpy (me->urlName, urlName);
2349: #ifdef _WINDOWS
2350: /* force windows ASYNC requests to always be non preemptive */
2351: HTRequest_setPreemptive (me->request, NO);
2352: #endif /*_WINDOWS */
2353: } /* AMAYA_ASYNC mode */
2354: else
2355: #ifdef _WINDOWS
2356: {
2357: me->outputfile = outputfile;
2358: me->urlName = urlName;
2359: /* force windows SYNC requests to always be non preemptive */
2360: HTRequest_setPreemptive (me->request, YES);
2361: }
2362: #else /* !_WINDOWS */
2363: {
2364: me->outputfile = outputfile;
2365: me->urlName = urlName;
2366: }
2367: /***
1.136 cvs 2368: In order to take into account the stop button,
2369: the requests will be always asynchronous, however, if mode=AMAYA_SYNC,
1.57 cvs 2370: we will loop until the document has been received or a stop signal
2371: generated
1.77 cvs 2372: ****/
1.116 cvs 2373: HTRequest_setPreemptive (me->request, NO);
2374: #endif /* _WINDOWS */
1.61 cvs 2375:
1.151 cvs 2376: /*
2377: ** Make sure that the first request is flushed immediately and not
2378: ** buffered in the output buffer
2379: */
2380: if (mode & AMAYA_FLUSH_REQUEST)
2381: HTRequest_setFlush(me->request, YES);
2382: HTRequest_setFlush(me->request, YES);
2383:
1.61 cvs 2384: /* prepare the URLname that will be displayed in teh status bar */
2385: ChopURL (me->status_urlName, me->urlName);
1.77 cvs 2386: TtaSetStatus (me->docid, 1,
2387: TtaGetMessage (AMAYA, AM_FETCHING),
2388: me->status_urlName);
1.4 cvs 2389:
2390: me->anchor = (HTParentAnchor *) HTAnchor_findAddress (ref);
1.45 cvs 2391: TtaFreeMemory (ref);
1.4 cvs 2392:
1.114 cvs 2393: if (mode & AMAYA_NOCACHE)
1.116 cvs 2394: HTRequest_setReloadMode (me->request, HT_CACHE_FLUSH);
2395:
2396: /* prepare the query string and format for POST */
2397: if (mode & AMAYA_FORM_POST)
1.114 cvs 2398: {
1.116 cvs 2399: HTAnchor_setFormat ((HTParentAnchor *) me->anchor,
2400: HTAtom_for ("application/x-www-form-urlencoded"));
2401: HTAnchor_setLength ((HTParentAnchor *) me->anchor, me->block_size);
2402: HTRequest_setEntityAnchor (me->request, me->anchor);
2403: }
1.114 cvs 2404:
1.127 cvs 2405: /* create the formdata element for libwww */
2406: if (formdata)
2407: me->formdata = PrepareFormdata (formdata);
2408:
1.116 cvs 2409: /* do the request */
2410: if (mode & AMAYA_FORM_POST)
1.119 cvs 2411: {
2412: /* this call doesn't give back a boolean */
2413: HTParentAnchor * posted = NULL;
2414:
2415: posted = HTPostFormAnchor (me->formdata, (HTAnchor *) me->anchor,
2416: me->request);
2417: status = posted ? YES : NO;
2418: }
1.127 cvs 2419: else if (formdata)
2420: status = HTGetFormAnchor(me->formdata, (HTAnchor *) me->anchor,
2421: me->request);
1.116 cvs 2422: else
1.77 cvs 2423: status = HTLoadAnchor ((HTAnchor *) me->anchor, me->request);
1.69 cvs 2424:
1.123 cvs 2425: /* @@@ may need some special windows error msg here */
1.116 cvs 2426: /* control the errors */
1.4 cvs 2427:
1.130 cvs 2428: if (status == NO)
1.116 cvs 2429: /* the request invocation failed */
2430: {
2431: /* show an error message on the status bar */
2432: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
2433: TtaSetStatus (docid, 1,
2434: TtaGetMessage (AMAYA, AM_CANNOT_LOAD),
2435: urlName);
2436: if (me->reqStatus == HT_NEW)
2437: /* manually invoke the last processing that usually gets done
2438: in a succesful request */
2439: InvokeGetObjectWWW_callback (docid, urlName, outputfile,
2440: terminate_cbf, context_tcbf, HT_ERROR);
2441: /* terminate_handler wasn't called */
1.136 cvs 2442: AHTReqContext_delete (me);
1.116 cvs 2443: }
2444: else
1.136 cvs 2445: /* end treatment for SYNC requests */
1.120 cvs 2446: if ((mode & AMAYA_SYNC) || (mode & AMAYA_ISYNC))
2447: {
1.136 cvs 2448: /* wait here untilt the asynchronous request finishes */
1.130 cvs 2449: status = LoopForStop (me);
1.136 cvs 2450: /* if status returns HT_ERROR, should we invoke the callback? */
1.120 cvs 2451: if (!HTRequest_kill (me->request))
2452: AHTReqContext_delete (me);
2453: }
1.130 cvs 2454:
1.136 cvs 2455: /* an interface problem!!! */
2456: return (status == YES ? 0 : -1);
1.4 cvs 2457: }
2458:
1.5 cvs 2459: /*----------------------------------------------------------------------
1.17 cvs 2460: PutObjectWWW
2461: frontend for uploading a resource to a URL. This function downloads
2462: a file to be uploaded into memory, it then calls UploadMemWWW to
2463: finish the job.
2464:
1.5 cvs 2465: 2 upload modes are proposed:
2466: AMAYA_SYNC : blocking mode
2467: AMAYA_ASYNC : non-blocking mode
2468:
1.4 cvs 2469: When the function is called with the SYNC mode, the function will
2470: return only when the file has been uploaded.
2471: The ASYNC mode will immediately return after setting up the
2472: call. Furthermore, at the end of an upload, the ASYNC mode will
2473: call back terminate_cbf, handling it the context defined in
2474: context_tcbf.
2475:
2476: Notes:
2477: At the end of a succesful request, the urlName string contains the
2478: name of the actually uploaded URL. As a URL can change over the time,
2479: (e.g., be redirected elsewhere), it is advised that the function
2480: caller verifies the value of the urlName variable at the end of
2481: a request.
2482:
2483: Inputs:
2484: - docid Document identifier for the set of objects being
2485: retrieved.
2486: - fileName A pointer to the local file to upload
2487: - urlName The URL to be uploaded (MAX_URL_LENGTH chars length)
2488: - mode The retrieval mode.
2489: - terminate_cbf
2490: - context_icbf
2491: Callback and context for a terminate handler
2492:
2493: Outputs:
2494: - urlName The URL that was uploaded
2495:
2496: Returns:
2497: HT_ERROR
2498: HT_OK
1.5 cvs 2499: ----------------------------------------------------------------------*/
1.4 cvs 2500: #ifdef __STDC__
1.27 cvs 2501: int PutObjectWWW (int docid, char *fileName, char *urlName, int mode, PicType contentType,
1.4 cvs 2502: TTcbf * terminate_cbf, void *context_tcbf)
2503: #else
1.26 cvs 2504: int PutObjectWWW (docid, urlName, fileName, mode, contentType,
1.4 cvs 2505: ,terminate_cbf, context_tcbf)
2506: int docid;
2507: char *urlName;
2508: char *fileName;
2509: int mode;
1.27 cvs 2510: PicType contentType;
1.4 cvs 2511: TTcbf *terminate_cbf;
2512: void *context_tcbf;
2513:
1.116 cvs 2514: #endif /* __STDC__ */
1.4 cvs 2515: {
1.116 cvs 2516: AHTReqContext *me;
1.4 cvs 2517: int status;
2518: int fd;
2519: struct stat file_stat;
1.116 cvs 2520: char *fileURL;
1.151 cvs 2521: /* temporarily put it here, should come in the API */
2522: boolean UsePreconditions = FALSE;
1.4 cvs 2523:
1.33 cvs 2524: AmayaLastHTTPErrorMsg [0] = EOS;
2525:
1.116 cvs 2526: if (urlName == NULL || docid == 0 || fileName == NULL
2527: || !TtaFileExist (fileName))
1.4 cvs 2528: /* no file to be uploaded */
2529: return HT_ERROR;
2530:
2531: /* do we support this protocol? */
1.7 cvs 2532: if (IsValidProtocol (urlName) == NO)
2533: {
2534: /* return error */
1.77 cvs 2535: TtaSetStatus (docid, 1,
2536: TtaGetMessage (AMAYA, AM_PUT_UNSUPPORTED_PROTOCOL),
1.7 cvs 2537: urlName);
2538: return HT_ERROR;
2539: }
1.116 cvs 2540:
2541: /* verify the file's size */
2542: #ifndef _WINDOWS
1.7 cvs 2543: if ((fd = open (fileName, O_RDONLY)) == -1)
1.116 cvs 2544: #else
1.137 cvs 2545: if ((fd = _open (fileName, _O_RDONLY | _O_BINARY)) == -1)
1.116 cvs 2546: #endif /* _WINDOWS */
1.7 cvs 2547: {
2548: /* if we could not open the file, exit */
2549: /*error msg here */
2550: return (HT_ERROR);
2551: }
1.4 cvs 2552:
2553: fstat (fd, &file_stat);
1.137 cvs 2554: # ifdef _WINDOWS
2555: _close (fd);
2556: # else /* _WINDOWS */
1.116 cvs 2557: close (fd);
1.137 cvs 2558: # endif /* _WINDOWS */
1.4 cvs 2559:
1.7 cvs 2560: if (file_stat.st_size == 0)
2561: {
2562: /* file was empty */
2563: /*errmsg here */
2564: return (HT_ERROR);
2565: }
1.116 cvs 2566:
2567: /* prepare the request context */
1.4 cvs 2568:
2569: if (THD_TRACE)
1.116 cvs 2570: fprintf (stderr, "file size == %u\n", (unsigned) file_stat.st_size);
1.4 cvs 2571:
2572: me = AHTReqContext_new (docid);
2573:
1.7 cvs 2574: if (me == NULL)
2575: {
1.131 cvs 2576: /* @@ need an error message here */
1.151 cvs 2577: TtaHandlePendingEvents ();
1.7 cvs 2578: return (HT_ERROR);
2579: }
1.116 cvs 2580:
1.4 cvs 2581: me->mode = mode;
2582: me->incremental_cbf = (TIcbf *) NULL;
2583: me->context_icbf = (void *) NULL;
2584: me->terminate_cbf = terminate_cbf;
2585: me->context_tcbf = context_tcbf;
2586: me->urlName = urlName;
1.116 cvs 2587: me->block_size = file_stat.st_size;
1.17 cvs 2588: /* select the parameters that distinguish a PUT from a GET/POST */
1.4 cvs 2589: me->method = METHOD_PUT;
2590: HTRequest_setMethod (me->request, METHOD_PUT);
2591: me->output = stdout;
1.17 cvs 2592: /* we are not expecting to receive any input from the server */
2593: me->outputfile = (char *) NULL;
1.4 cvs 2594:
1.134 cvs 2595: #ifdef _WINDOWS
2596: /* libwww's HTParse function doesn't take into account the drive name;
2597: so we sidestep it */
2598: fileURL = NULL;
2599: StrAllocCopy (fileURL, "file:");
2600: StrAllocCat (fileURL, fileName);
2601: #else
1.116 cvs 2602: fileURL = HTParse (fileName, "file:/", PARSE_ALL);
1.134 cvs 2603: #endif /* _WINDOWS */
1.116 cvs 2604: me->anchor = (HTParentAnchor *) HTAnchor_findAddress (fileURL);
2605: HT_FREE (fileURL);
1.114 cvs 2606:
1.28 cvs 2607: /* Set the Content-Type of the file we are uploading */
1.77 cvs 2608: HTAnchor_setFormat ((HTParentAnchor *) me->anchor,
2609: AHTGuessAtom_for (me->urlName, contentType));
1.17 cvs 2610:
1.134 cvs 2611: /* associate the anchor to the request */
1.4 cvs 2612: HTRequest_setEntityAnchor (me->request, me->anchor);
1.134 cvs 2613:
2614: /* define other request characteristics */
1.116 cvs 2615: #ifdef _WINDOWS
1.136 cvs 2616: HTRequest_setPreemptive (me->request, NO);
1.116 cvs 2617: #else
1.134 cvs 2618: HTRequest_setPreemptive (me->request, NO);
1.116 cvs 2619: #endif /* _WINDOWS */
2620:
1.151 cvs 2621: /*
2622: ** Make sure that the first request is flushed immediately and not
2623: ** buffered in the output buffer
2624: */
2625: if (mode & AMAYA_FLUSH_REQUEST)
2626: HTRequest_setFlush(me->request, YES);
2627:
2628: /* Should we use preconditions? */
2629: if (UsePreconditions)
2630: HTRequest_setPreconditions(me->request, YES);
2631:
1.136 cvs 2632: /* don't use the cache while saving a document */
2633: HTRequest_setReloadMode (me->request, HT_CACHE_FLUSH);
1.116 cvs 2634:
1.74 cvs 2635: /* prepare the URLname that will be displayed in teh status bar */
2636: ChopURL (me->status_urlName, me->urlName);
2637: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_REMOTE_SAVING),
2638: me->status_urlName);
1.114 cvs 2639:
1.116 cvs 2640: status = HTPutDocumentAbsolute (me->anchor, urlName, me->request);
1.4 cvs 2641:
1.130 cvs 2642: if (status == YES && me->reqStatus != HT_ERR)
1.7 cvs 2643: {
2644: /* part of the stop button handler */
2645: if ((mode & AMAYA_SYNC) || (mode & AMAYA_ISYNC))
1.136 cvs 2646: status = LoopForStop (me);
1.15 cvs 2647: }
1.136 cvs 2648: if (!HTRequest_kill (me->request))
2649: AHTReqContext_delete (me);
2650:
1.116 cvs 2651: TtaHandlePendingEvents ();
1.90 cvs 2652:
1.130 cvs 2653: return (status == YES ? 0 : -1);
1.28 cvs 2654: }
1.4 cvs 2655:
1.5 cvs 2656: /*----------------------------------------------------------------------
1.138 cvs 2657: StopRequest
1.17 cvs 2658: stops (kills) all active requests associated with a docid
1.5 cvs 2659: ----------------------------------------------------------------------*/
1.4 cvs 2660: #ifdef __STDC__
2661: void StopRequest (int docid)
2662: #else
2663: void StopRequest (docid)
2664: int docid;
2665: #endif
2666: {
1.140 cvs 2667: if (Amaya && CanDoStop ())
1.138 cvs 2668: {
1.139 cvs 2669: #if 0 /* for later */
1.140 cvs 2670: AHTDocId_Status *docid_status;
2671: /* verify if there are any requests at all associated with docid */
1.138 cvs 2672: docid_status = (AHTDocId_Status *) GetDocIdStatus (docid,
2673: Amaya->docid_status);
2674: if (docid_status == (AHTDocId_Status *) NULL)
2675: return;
1.139 cvs 2676: #endif /* 0 */
1.138 cvs 2677: /* temporary call to stop all requests, as libwww changed its API */
2678: StopAllRequests (docid);
2679: }
2680: }
2681:
2682: /*----------------------------------------------------------------------
2683: StopAllRequests
2684: stops (kills) all active requests. We use the docid
2685: ----------------------------------------------------------------------*/
2686: #ifdef __STDC__
2687: void StopAllRequests (int docid)
2688: #else
1.140 cvs 2689: void StopAllRequests (docid)
1.138 cvs 2690: int docid;
2691: #endif
2692: {
1.4 cvs 2693: HTList *cur;
2694: AHTReqContext *me;
1.146 cvs 2695: static boolean lock_stop = 0;
1.161 cvs 2696: boolean async_flag;
1.116 cvs 2697:
1.138 cvs 2698: /* only do the stop if we're not being called while processing a
1.146 cvs 2699: request, and if we're not already dealing with a stop */
2700: if (Amaya && CanDoStop () && !lock_stop)
1.7 cvs 2701: {
1.100 cvs 2702: #ifdef DEBUG_LIBWWW
1.138 cvs 2703: fprintf (stderr, "StopRequest: number of Amaya requests "
2704: "before kill: %d\n", Amaya->open_requests);
1.100 cvs 2705: #endif /* DEBUG_LIBWWW */
1.150 cvs 2706: /* enter the critical section */
1.146 cvs 2707: lock_stop = TRUE;
1.160 cvs 2708: /* HTNet_killAll (); */
1.116 cvs 2709: cur = Amaya->reqlist;
2710: while ((me = (AHTReqContext *) HTList_nextObject (cur)))
2711: {
1.140 cvs 2712: if (AmayaIsAlive ())
1.160 cvs 2713: {
1.161 cvs 2714: #ifdef DEBUG_LIBWWW
1.163 ! cvs 2715: fprintf (stderr,"StopRequest: killing req %p, url %s, status %d\n", me, me->urlName, me->reqStatus);
1.161 cvs 2716: #endif /* DEBUG_LIBWWW */
2717:
1.163 ! cvs 2718: if (me->reqStatus != HT_END)
! 2719: {
! 2720: if ((me->mode & AMAYA_ASYNC)
! 2721: || (me->mode & AMAYA_IASYNC))
! 2722: async_flag = TRUE;
! 2723: else
! 2724: async_flag = FALSE;
! 2725:
! 2726: /* kill the request, using the appropriate function */
! 2727: if (me->request->net)
! 2728: HTNet_killPipe (me->request->net);
! 2729: else
! 2730: {
1.160 cvs 2731: if (me->terminate_cbf)
2732: (*me->terminate_cbf) (me->docid, -1, me->urlName,
2733: me->outputfile,
2734: me->content_type,
2735: me->context_tcbf);
2736: }
1.163 ! cvs 2737: if (!async_flag)
! 2738: AHTReqContext_delete (me);
! 2739: cur = Amaya->reqlist;
! 2740: }
1.142 cvs 2741: #ifndef _WINDOWS
2742: #ifdef WWW_XWINDOWS
1.140 cvs 2743: /* to be on the safe side, remove all outstanding X events */
1.160 cvs 2744: else
2745: RequestKillAllXtevents (me);
1.142 cvs 2746: #endif /* WWW_XWINDOWS */
2747: #endif /* !_WINDOWS */
1.160 cvs 2748: }
1.116 cvs 2749: }
1.148 cvs 2750: /* expire all outstanding timers */
2751: HTTimer_expireAll ();
1.150 cvs 2752: /* Delete remaining channels */
2753: HTChannel_safeDeleteAll ();
2754: /* exit the critical section */
1.148 cvs 2755: lock_stop = FALSE;
1.100 cvs 2756: #ifdef DEBUG_LIBWWW
1.138 cvs 2757: fprintf (stderr, "StopRequest: number of Amaya requests "
2758: "after kill: %d\n", Amaya->open_requests);
1.100 cvs 2759: #endif /* DEBUG_LIBWWW */
1.138 cvs 2760: }
2761: } /* StopAllRequests */
1.17 cvs 2762:
2763:
1.105 cvs 2764: /*----------------------------------------------------------------------
2765: AmayaIsAlive
1.140 cvs 2766: returns the value of the AmayaAlive_flag
1.105 cvs 2767: ----------------------------------------------------------------------*/
2768: #ifdef __STDC__
2769: boolean AmayaIsAlive (void)
2770: #else
2771: boolean AmayaIsAlive ()
2772: #endif /* _STDC_ */
2773: {
1.140 cvs 2774: return AmayaAlive_flag;
2775: }
2776:
2777: /*----------------------------------------------------------------------
2778: CanDoStop
2779: returns the value of the CanDoStop flag
2780: ----------------------------------------------------------------------*/
2781: #ifdef __STDC__
2782: boolean CanDoStop (void)
2783: #else
2784: boolean CanDoStop ()
2785: #endif /* _STDC_ */
2786: {
2787: return CanDoStop_flag;
2788: }
2789:
2790: /*----------------------------------------------------------------------
2791: CanDoStop_set
2792: sets the value of the CanDoStop flag
2793: ----------------------------------------------------------------------*/
2794: #ifdef __STDC__
2795: void CanDoStop_set (boolean value)
2796: #else
2797: void CanDoStop (value)
2798: boolean value;
2799: #endif /* _STDC_ */
2800: {
2801: CanDoStop_flag = value;
1.105 cvs 2802: }
1.116 cvs 2803:
1.69 cvs 2804: #endif /* AMAYA_JAVA */
1.77 cvs 2805:
1.116 cvs 2806: /*
2807: end of Module query.c
2808: */
1.140 cvs 2809:
2810:
2811:
2812:
2813:
2814:
1.17 cvs 2815:
2816:
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