Annotation of Amaya/amaya/query.c, revision 1.206
1.14 cvs 1: /*
2: *
3: * (c) COPYRIGHT MIT and INRIA, 1996.
4: * Please first read the full copyright statement in file COPYRIGHT.
1.156 cvs 5: *
1.14 cvs 6: */
1.4 cvs 7:
1.19 cvs 8: /*
1.83 cvs 9: * query.c : contains all the functions for requesting and publishing
1.19 cvs 10: * URLs via libwww. It handles any eventual HTTP error code
11: * (redirection, authentication needed, not found, etc.)
12: *
1.69 cvs 13: * Author: J. Kahan
1.92 cvs 14: * J. Kahan/R. Guetari Windows 95/NT routines
1.19 cvs 15: */
1.17 cvs 16:
1.44 cvs 17: #ifndef AMAYA_JAVA
18:
1.116 cvs 19: /* defines to include elsewhere
20: *********************************/
21:
1.185 cvs 22: #ifdef _WINDOWS
23: #include <string.h>
1.130 cvs 24: #endif /* !_WINDOWS */
1.116 cvs 25: #define AMAYA_WWW_CACHE
1.168 cvs 26: #define AMAYA_LOST_UPDATE
1.116 cvs 27:
1.198 cvs 28: #if defined(_I18N_) || defined(__JIS__)
29: # ifdef _WINDOWS
30: # define CACHE_DIR_NAME L"\\libwww-cache\\"
31: # else
32: # define CACHE_DIR_NAME L"/libwww-cache/"
33: # endif /* _WINDOWS */
34: #else /* */
35: # ifdef _WINDOWS
36: # define CACHE_DIR_NAME "\\libwww-cache\\"
37: # else
38: # define CACHE_DIR_NAME "/libwww-cache/"
39: # endif /* _WINDOWS */
40: #endif /* */
41:
1.176 cvs 42: #define DEFAULT_CACHE_SIZE 10
43: #define DEFAULT_MAX_CACHE_ENTRY_SIZE 3
1.177 cvs 44: #define DEFAULT_MAX_SOCKET 32
1.176 cvs 45: #define DEFAULT_DNS_TIMEOUT 1800L
1.151 cvs 46: #define DEFAULT_PERSIST_TIMEOUT 60L
1.165 cvs 47: #define DEFAULT_NET_EVENT_TIMEOUT 60000
1.116 cvs 48:
1.12 cvs 49: /* Amaya includes */
1.25 cvs 50: #define THOT_EXPORT extern
1.4 cvs 51: #include "amaya.h"
1.130 cvs 52: #include <sys/types.h>
1.70 cvs 53: #include <fcntl.h>
1.140 cvs 54: #include "HTEvtLst.h"
1.157 cvs 55: #include "HTAABrow.h"
1.7 cvs 56:
1.141 cvs 57: #if defined(__svr4__) || defined (_AIX)
1.4 cvs 58: #define CATCH_SIG
59: #endif
60:
61: /* local structures coming from libwww and which are
1.17 cvs 62: not found in any .h file
1.7 cvs 63: */
1.68 cvs 64:
1.7 cvs 65: struct _HTStream
66: {
1.15 cvs 67: const HTStreamClass *isa;
68: FILE *fp;
1.45 cvs 69: BOOL leave_open; /* Close file when TtaFreeMemory? */
1.15 cvs 70: char *end_command; /* Command to execute */
71: BOOL remove_on_close; /* Remove file? */
72: char *filename; /* Name of file */
73: HTRequest *request; /* saved for callback */
74: HTRequestCallback *callback;
1.7 cvs 75: };
76:
1.15 cvs 77:
1.7 cvs 78: struct _HTError
79: {
80: HTErrorElement element; /* Index number into HTError */
81: HTSeverity severity; /* A la VMS */
82: BOOL ignore; /* YES if msg should not go to user */
83: void *par; /* Explanation, e.g. filename */
84: int length; /* For copying by generic routine */
85: char *where; /* Which function */
86: };
87:
1.4 cvs 88: /* Type definitions and global variables etc. local to this module */
89:
1.17 cvs 90: /*----------------------------------------------------------------------*/
91:
1.4 cvs 92: /*** private variables ***/
1.17 cvs 93:
1.4 cvs 94: static HTList *converters = NULL; /* List of global converters */
1.27 cvs 95: static HTList *acceptTypes = NULL; /* List of types for the Accept header */
1.193 cvs 96: static HTList *acceptLanguages = NULL; /* List of language priorities for the Accept header */
1.151 cvs 97: static HTList *transfer_encodings = NULL;
98: static HTList *content_encodings = NULL;
1.16 cvs 99: static int object_counter = 0; /* loaded objects counter */
1.191 cvs 100: static ThotBool AmayaAlive_flag; /* set to 1 if the application is active;
1.140 cvs 101: 0 if we have killed */
1.191 cvs 102: static ThotBool CanDoStop_flag; /* set to 1 if we can do a stop, 0
1.140 cvs 103: if we're inside a critical section */
1.128 cvs 104: #ifdef AMAYA_WWW_CACHE
1.130 cvs 105: static int fd_cachelock; /* open handle to the .lock cache file */
106: #endif /* AMAYA_WWW_CACHE */
1.4 cvs 107:
1.15 cvs 108: #include "answer_f.h"
109: #include "query_f.h"
110: #include "AHTURLTools_f.h"
111: #include "AHTBridge_f.h"
112: #include "AHTMemConv_f.h"
113: #include "AHTFWrite_f.h"
1.4 cvs 114:
1.116 cvs 115: /* prototypes */
116:
117: #ifdef __STDC__
1.198 cvs 118: static void RecCleanCache (STRING dirname);
1.123 cvs 119: #ifdef _WINDOWS
1.70 cvs 120: int WIN_Activate_Request (HTRequest* , HTAlertOpcode, int, const char*, void*, HTAlertPar*);
1.116 cvs 121: #endif /* _WINDOWS */
1.70 cvs 122: #else
1.128 cvs 123: static void RecCleanCache (/* char *dirname */);
1.123 cvs 124: #ifdef _WINDOWS
1.128 cvs 125: int WIN_Activate_Request (/* HTRequest* , HTAlertOpcode, int, const char*, void*, HTAlertPar* */);
1.116 cvs 126: #endif /* _WINDOWS */
1.70 cvs 127: #endif /* __STDC__ */
1.116 cvs 128:
1.15 cvs 129:
1.130 cvs 130: #ifdef AMAYA_WWW_CACHE
131: /***************************************************************
132: lock functions, used to avoid concurrent use of the cache
133: Mostly based on W. Richard Stevens' APUE book.
134: ***************************************************************/
135: /*----------------------------------------------------------------------
136: set_cachelock
137: sets a write lock on filename.
138: Returns -1 in case of failure, otherwise, it'll open a handle on
139: filename and fd_cachelock will take its value.
140: ----------------------------------------------------------------------*/
141: #ifdef __STDC__
1.198 cvs 142: static int set_cachelock (STRING filename)
1.130 cvs 143: #else
144: static int set_cachelock (filename)
1.198 cvs 145: STRING filename;
1.130 cvs 146: #endif /* __STDC__ */
147: {
1.188 cvs 148: int status;
1.130 cvs 149: #ifdef _WINDOWS
1.188 cvs 150:
151: status = TtaFileExist (filename);
152: return ((status) ? 0 : -1);
1.130 cvs 153: #else
154: struct flock lock;
155:
156: lock.l_type = F_WRLCK;
157: lock.l_start = 0;
158: lock.l_whence = SEEK_SET;
159: lock.l_len = 0;
160:
161: fd_cachelock = open (filename, O_WRONLY);
162:
163: if (fd_cachelock == -1)
164: status = -1;
165: else
166: status = fcntl(fd_cachelock, F_SETLK, &lock);
167:
168: if (status == -1)
1.190 cvs 169: {
1.179 cvs 170: if (fd_cachelock > 0)
1.190 cvs 171: close (fd_cachelock);
1.179 cvs 172: fd_cachelock = 0;
1.178 cvs 173: }
1.130 cvs 174: return (status);
175: #endif /* _WINDOWS */
176: }
177:
178: /*----------------------------------------------------------------------
179: clear_cachelock
180: remove the write lock set on a filename.
181: It'll close the fd handle on filename and reset *fd to 0.
182: ----------------------------------------------------------------------*/
183: #ifdef __STDC__
184: static int clear_cachelock (void)
185: #else
186: static int clear_cachelock ()
187: int *fd;
188: #endif /* __STDC__ */
189: {
190: #ifdef _WINDOWS
191: return 0;
192: #else
193: int status;
194:
1.178 cvs 195: if (!fd_cachelock)
1.130 cvs 196: return (-1);
197:
1.178 cvs 198: status = close (fd_cachelock);
1.130 cvs 199: fd_cachelock = 0;
200:
201: return (status);
202: #endif /* _WINDOWS */
203: }
204:
205: /*----------------------------------------------------------------------
206: test_cachelock
207: returns 0 if a fd is not locked by other process, otherwise
208: returns the pid of the process who has the lock
209: ----------------------------------------------------------------------*/
210: #ifdef __STDC__
1.198 cvs 211: static int test_cachelock (STRING filename)
1.130 cvs 212: #else
213: static int test_cachelock (filename)
1.198 cvs 214: STRING filename;
215: #endif /* __STDC__ */
1.130 cvs 216: {
217: #ifdef _WINDOWS
1.185 cvs 218: /* if the lock is set, we can't unlink the file under Windows */
1.188 cvs 219: if (!TtaFileUnlink (filename))
220: return 0;
221: else
1.185 cvs 222: return -1;
1.130 cvs 223: #else
224: struct flock lock;
225: int fd, status;
226:
227: lock.l_type = F_WRLCK;
228: lock.l_start = 0;
229: lock.l_whence = SEEK_SET;
230: lock.l_len = 0;
231:
232: fd = open (filename, O_WRONLY);
233:
234: if (fd < 0)
235: return (-1);
236: /* is this file locked ? */
237: status = fcntl (fd, F_GETLK, &lock);
238: close (fd);
239:
240: if (status < 0)
241: return (-1);
242:
243: if (lock.l_type == F_UNLCK)
244: return (0); /* false, region is not locked by another proc */
245: return (lock.l_pid); /* true, return pid of lock owner */
246: #endif /* _WINDOWS */
247: }
248:
249: #endif /* AMAYA_WWW_CACHE */
250:
1.15 cvs 251: /*----------------------------------------------------------------------
1.17 cvs 252: GetDocIdStatus
253: gets the status associated to a docid
1.15 cvs 254: ----------------------------------------------------------------------*/
255: #ifdef __STDC__
256: AHTDocId_Status *GetDocIdStatus (int docid, HTList * documents)
257: #else
258: AHTDocID_Status *GetDocIdStatus (docid, documents)
259: int docid;
260: HTList *documents;
261:
262: #endif
263: {
264: AHTDocId_Status *me;
265: HTList *cur;
266:
267: if (documents)
268: {
269: cur = documents;
270:
271: while ((me = (AHTDocId_Status *) HTList_nextObject (cur)))
272: {
273: if (me->docid == docid)
274: return (me);
1.18 cvs 275: }
276: }
1.15 cvs 277: return (AHTDocId_Status *) NULL;
278:
279: }
280:
1.5 cvs 281: /*----------------------------------------------------------------------
1.27 cvs 282: AHTGuessAtom_for
283: Converts an Amaya type descriptor into the equivalent MIME type.
284: ----------------------------------------------------------------------*/
285: #ifdef __STDC__
1.198 cvs 286: static HTAtom *AHTGuessAtom_for (STRING urlName, PicType contentType)
1.27 cvs 287: #else
288: static HTAtom *AHTGuessAtom_for (urlName, contentType)
1.198 cvs 289: STRING urlName;
1.27 cvs 290: PicType contentType;
291: #endif
292: {
293: HTAtom *atom;
1.198 cvs 294: STRING filename;
1.160 cvs 295: HTEncoding enc = NULL;
296: HTEncoding cte = NULL;
297: HTLanguage lang = NULL;
1.50 cvs 298: double quality = 1.0;
1.27 cvs 299:
300: switch (contentType)
301: {
302: case xbm_type:
303: atom = HTAtom_for("image/xbm");
304: break;
305: case eps_type:
1.35 cvs 306: atom = HTAtom_for("application/postscript");
1.27 cvs 307: break;
308: case xpm_type:
309: atom = HTAtom_for("image/xpm");
310: break;
311: case gif_type:
312: atom = HTAtom_for("image/gif");
313: break;
314: case jpeg_type:
315: atom = HTAtom_for("image/jpeg");
316: break;
317: case png_type:
318: atom = HTAtom_for("image/png");
319: break;
320: case unknown_type:
321: default:
322: /*
323: ** Amaya could not detect the type, so
324: ** we try to use the filename's suffix to do so.
325: */
1.198 cvs 326: filename = AmayaParseUrl (urlName, _EMPTYSTR_, AMAYA_PARSE_PATH | AMAYA_PARSE_PUNCTUATION);
327: HTBind_getFormat (WideChar2ISO (filename), &atom, &enc, &cte, &lang, &quality);
1.45 cvs 328: TtaFreeMemory (filename);
1.27 cvs 329: if (atom == WWW_UNKNOWN)
330: /*
331: ** we could not identify the suffix, so we assign it
332: ** a default type
333: */
334: atom = HTAtom_for ("text/html");
335: break;
336: }
337:
338: return atom;
339: }
340:
341: /*----------------------------------------------------------------------
1.17 cvs 342: AHTReqContext_new
343: create a new Amaya Context Object and update the global Amaya
344: request status.
1.5 cvs 345: ----------------------------------------------------------------------*/
1.4 cvs 346: #ifdef __STDC__
347: static AHTReqContext *AHTReqContext_new (int docid)
348: #else
349: static AHTReqContext *AHTReqContext_new (docid)
350: int docid;
351:
352: #endif
353: {
354: AHTReqContext *me;
355: AHTDocId_Status *docid_status;
356:
357: if ((me = (AHTReqContext *) TtaGetMemory (sizeof (AHTReqContext))) == NULL)
1.116 cvs 358: outofmem (__FILE__, "AHTReqContext_new");
359:
360: /* clear the structure */
361: memset ((void *) me, 0, sizeof (AHTReqContext));
1.4 cvs 362:
1.81 cvs 363: /* Bind the Context object together with the Request Object */
364: me->request = HTRequest_new ();
365:
1.80 cvs 366: /* clean the associated file structure) */
1.79 cvs 367: HTRequest_setOutputStream (me->request, NULL);
1.81 cvs 368:
1.4 cvs 369: /* Initialize the other members of the structure */
1.17 cvs 370: me->reqStatus = HT_NEW; /* initial status of a request */
1.4 cvs 371: me->docid = docid;
372: HTRequest_setMethod (me->request, METHOD_GET);
373: HTRequest_setOutputFormat (me->request, WWW_SOURCE);
374: HTRequest_setContext (me->request, me);
1.116 cvs 375:
1.36 cvs 376: /* experimental */
377: me->read_sock = INVSOC;
378: me->write_sock = INVSOC;
379: me->except_sock = INVSOC;
1.4 cvs 380:
381: /* Update the global context */
382: HTList_appendObject (Amaya->reqlist, (void *) me);
383:
384: docid_status = GetDocIdStatus (docid, Amaya->docid_status);
385:
1.7 cvs 386: if (docid_status == NULL)
387: {
1.116 cvs 388: docid_status = (AHTDocId_Status *)
389: TtaGetMemory (sizeof (AHTDocId_Status));
1.7 cvs 390: docid_status->docid = docid;
391: docid_status->counter = 1;
392: HTList_addObject (Amaya->docid_status, (void *) docid_status);
393: }
394: else
1.4 cvs 395: docid_status->counter++;
396:
397: Amaya->open_requests++;
398:
1.74 cvs 399: #ifdef DEBUG_LIBWWW
400: fprintf (stderr, "AHTReqContext_new: Created object %p\n", me);
401: #endif
1.116 cvs 402:
1.4 cvs 403: return me;
404: }
405:
1.5 cvs 406: /*----------------------------------------------------------------------
1.17 cvs 407: AHTReqContext_delete
408: Delete an Amaya Context Object and update the global Amaya request
409: status.
1.5 cvs 410: ----------------------------------------------------------------------*/
1.4 cvs 411:
412: #ifdef __STDC__
1.191 cvs 413: ThotBool AHTReqContext_delete (AHTReqContext * me)
1.4 cvs 414: #else
1.191 cvs 415: ThotBool AHTReqContext_delete (me)
1.4 cvs 416: AHTReqContext *me;
417:
418: #endif
419: {
420: AHTDocId_Status *docid_status;
421:
1.7 cvs 422: if (me)
423: {
1.74 cvs 424: #ifdef DEBUG_LIBWWW
1.138 cvs 425: fprintf (stderr, "AHTReqContext_delete: Deleting object %p\n", me);
1.74 cvs 426: #endif
1.138 cvs 427: if (Amaya->reqlist)
428: HTList_removeObject (Amaya->reqlist, (void *) me);
429:
430: docid_status = GetDocIdStatus (me->docid, Amaya->docid_status);
431: if (docid_status)
432: {
433: docid_status->counter--;
434:
435: if (docid_status->counter == 0)
436: {
437: HTList_removeObject (Amaya->docid_status, (void *) docid_status);
438: TtaFreeMemory ((void *) docid_status);
439: }
440: }
1.190 cvs 441: /* JK: no longer needed in libwww 5.2.3
442: if (me->method != METHOD_PUT && HTRequest_outputStream (me->request))
443: AHTFWriter_FREE (HTRequest_outputStream (me->request));
444: */
1.138 cvs 445: HTRequest_delete (me->request);
446:
447: if (me->output && me->output != stdout)
448: {
1.85 cvs 449: #ifdef DEBUG_LIBWWW
1.138 cvs 450: fprintf (stderr, "AHTReqContext_delete: URL is %s, closing "
451: "FILE %p\n", me->urlName, me->output);
1.85 cvs 452: #endif
1.138 cvs 453: fclose (me->output);
454: me->output = NULL;
455: }
1.79 cvs 456:
1.138 cvs 457: if (me->error_stream != (char *) NULL)
458: HT_FREE (me->error_stream);
459: #ifndef _WINDOWS
460: #ifdef WWW_XWINDOWS
461: if (me->read_xtinput_id || me->write_xtinput_id ||
462: me->except_xtinput_id)
463: RequestKillAllXtevents(me);
464: #endif /* WWW_XWINDOWS */
465: #endif /* !_WINDOWS */
466:
467: if (me->reqStatus == HT_ABORT)
468: {
469: if (me->outputfile && me->outputfile[0] != EOS)
470: {
1.198 cvs 471: TtaFileUnlink (ISO2WideChar (me->outputfile));
1.138 cvs 472: me->outputfile[0] = EOS;
473: }
474: }
475:
476: if ((me->mode & AMAYA_ASYNC) || (me->mode & AMAYA_IASYNC))
477: /* for the ASYNC mode, free the memory we allocated in GetObjectWWW
478: or in PutObjectWWW */
479: {
480: if (me->urlName)
481: TtaFreeMemory (me->urlName);
482: if (me->outputfile)
483: TtaFreeMemory (me->outputfile);
484: }
1.206 ! cvs 485:
! 486: /* @@ temp change for the %esc conversion */
! 487: if (me->method == METHOD_PUT && me->urlName)
! 488: TtaFreeMemory (me->urlName);
! 489:
1.138 cvs 490: if (me->content_type)
491: TtaFreeMemory (me->content_type);
492:
493: if (me->formdata)
494: HTAssocList_delete (me->formdata);
495:
496: /* to trace bugs */
497: memset ((void *) me, 0, sizeof (AHTReqContext));
498:
499: TtaFreeMemory ((void *) me);
500:
501: Amaya->open_requests--;
502:
503: return TRUE;
1.7 cvs 504: }
1.15 cvs 505: return FALSE;
1.4 cvs 506: }
507:
508:
1.15 cvs 509: /*----------------------------------------------------------------------
1.17 cvs 510: Thread_deleteAll
511: this function deletes the whole list of active threads.
1.5 cvs 512: ----------------------------------------------------------------------*/
1.4 cvs 513: #ifdef __STDC__
514: static void Thread_deleteAll (void)
515: #else
516: static void Thread_deleteAll ()
517: #endif
518: {
1.21 cvs 519: HTList *cur;
520: AHTReqContext *me;
521: AHTDocId_Status *docid_status;
522:
1.74 cvs 523: if (Amaya && Amaya->reqlist)
524: {
525: if (Amaya->open_requests > 0)
526: #ifdef DEBUG_LIBWWW
527: fprintf (stderr, "Thread_deleteAll: Killing %d outstanding "
528: "requests\n", Amaya->open_requests);
529: #endif
530: {
531: cur = Amaya->reqlist;
532:
533: /* erase the requests */
534: while ((me = (AHTReqContext *) HTList_removeLastObject (cur)))
535: {
536: if (me->request)
537: {
1.142 cvs 538: #ifndef _WINDOWS
539: #ifdef WWW_XWINDOWS
1.74 cvs 540: RequestKillAllXtevents (me);
1.142 cvs 541: #endif /* WWW_XWINDOWS */
1.138 cvs 542: #endif /* !_WINDOWS */
1.140 cvs 543: if (!HTRequest_kill (me->request))
544: AHTReqContext_delete (me);
1.74 cvs 545: }
546: } /* while */
547:
548: /* erase the docid_status entities */
549: while ((docid_status = (AHTDocId_Status *) HTList_removeLastObject ((void *) Amaya->docid_status)))
550: TtaFreeMemory ((void *) docid_status);
551:
552: } /* if */
1.84 cvs 553:
1.74 cvs 554: }
1.4 cvs 555: }
1.198 cvs 556:
1.5 cvs 557: /*----------------------------------------------------------------------
1.83 cvs 558: AHTOpen_file
559: ----------------------------------------------------------------------*/
560: #ifdef __STDC__
1.85 cvs 561: int AHTOpen_file (HTRequest * request)
1.83 cvs 562: #else
1.85 cvs 563: int AHTOpen_file (request)
1.83 cvs 564: HTRequest *request;
565:
566: #endif /* __STDC__ */
567: {
568: AHTReqContext *me; /* current request */
569:
570: me = HTRequest_context (request);
571:
1.93 cvs 572: if (!me)
573: return HT_ERROR;
574:
1.83 cvs 575: #ifdef DEBUG_LIBWWW
1.116 cvs 576: fprintf(stderr, "AHTOpen_file: start for object : %p\n", me);
1.85 cvs 577: #endif /* DEBUG_LIBWWW */
578:
579: if (me->reqStatus == HT_ABORT)
580: {
581: #ifdef DEBUG_LIBWWW
582: fprintf(stderr, "AHTOpen_file: caught an abort request, skipping it\n");
1.83 cvs 583: #endif /* DEBUG_LIBWWW */
584:
1.85 cvs 585: return HT_OK;
586: }
587:
1.136 cvs 588: if (me->method == METHOD_PUT)
589: {
590: me->reqStatus = HT_WAITING;
591: return HT_OK;
592: }
593:
1.85 cvs 594: if (HTRequest_outputStream (me->request))
595: {
596:
597: #ifdef DEBUG_LIBWWW
598: fprintf(stderr, "AHTOpen_file: output stream already existed for url %s\n", me->urlName);
599: #endif /* DEBUG_LIBWWW */
600: return HT_OK;
601: }
602:
603: #ifdef DEBUG_LIBWWW
604: fprintf(stderr, "AHTOpen_file: opening output stream for url %s\n", me->urlName);
605: #endif /* DEBUG_LIBWWW */
606:
1.83 cvs 607: if (!(me->output) &&
608: (me->output != stdout) &&
609: #ifndef _WINDOWS
610: (me->output = fopen (me->outputfile, "w")) == NULL)
611: {
1.116 cvs 612: #else /* !_WINDOWS */
1.83 cvs 613: (me->output = fopen (me->outputfile, "wb")) == NULL)
614: {
615: #endif /* !_WINDOWS */
616:
1.131 cvs 617: me->outputfile[0] = EOS; /* file could not be opened */
1.85 cvs 618: #ifdef DEBUG_LIBWWW
619: fprintf(stderr, "AHTOpen_file: couldn't open output stream for url %s\n", me->urlName);
620: #endif
1.83 cvs 621: TtaSetStatus (me->docid, 1,
622: TtaGetMessage (AMAYA, AM_CANNOT_CREATE_FILE),
1.198 cvs 623: ISO2WideChar (me->outputfile));
1.83 cvs 624: me->reqStatus = HT_ERR;
625: return (HT_ERROR);
626: }
627:
628: HTRequest_setOutputStream (me->request,
629: AHTFWriter_new (me->request,
630: me->output, YES));
631: me->reqStatus = HT_WAITING;
632:
633: return HT_OK;
634: }
635:
636: /*----------------------------------------------------------------------
1.17 cvs 637: redirection_handler
638: this function is registered to handle permanent and temporary
639: redirections.
640: ----------------------------------------------------------------------*/
1.4 cvs 641: #ifdef __STDC__
1.7 cvs 642: static int redirection_handler (HTRequest * request, HTResponse * response, void *param, int status)
1.4 cvs 643: #else
644: static int redirection_handler (request, context, status)
645: HTRequest *request;
646: HTResponse *response;
647: void *param;
648: int status;
649:
650: #endif
651: {
652:
653: HTAnchor *new_anchor = HTResponse_redirection (response);
1.7 cvs 654: AHTReqContext *me = HTRequest_context (request);
1.4 cvs 655: HTMethod method = HTRequest_method (request);
1.198 cvs 656: STRING ref;
1.206 ! cvs 657: STRING escape_src, dst;
1.98 cvs 658: char *tmp;
1.4 cvs 659:
1.153 cvs 660: if (!me)
661: /* if the redirect doesn't come from Amaya, we call libwww's standard
662: redirect filter */
663: return (HTRedirectFilter (request, response, param, status));
664:
1.7 cvs 665: if (!new_anchor)
666: {
667: if (PROT_TRACE)
668: HTTrace ("Redirection. No destination\n");
669: return HT_OK;
670: }
1.4 cvs 671:
672: /*
1.166 cvs 673: ** Only do redirect on GET and HEAD
1.4 cvs 674: */
1.7 cvs 675: if (!HTMethod_isSafe (method))
676: {
1.130 cvs 677: /*
678: ** If we got a 303 See Other then change the method to GET.
679: ** Otherwise ask the user whether we should continue.
680: */
681: if (status == HT_SEE_OTHER)
682: {
683: if (PROT_TRACE)
684: HTTrace("Redirection. Changing method from %s to GET\n",
685: HTMethod_name(method));
686: HTRequest_setMethod(request, METHOD_GET);
687: }
688: else
689: {
690: HTAlertCallback *prompt = HTAlert_find (HT_A_CONFIRM);
691: if (prompt)
692: {
693: if ((*prompt) (request, HT_A_CONFIRM, HT_MSG_REDIRECTION,
694: NULL, NULL, NULL) != YES)
1.153 cvs 695: return HT_OK;
1.130 cvs 696: }
697: }
1.7 cvs 698: }
1.4 cvs 699: /*
700: ** Start new request with the redirect anchor found in the headers.
701: ** Note that we reuse the same request object which means that we must
702: ** keep this around until the redirected request has terminated. It also
703: ** allows us in an easy way to keep track of the number of redirections
704: ** so that we can detect endless loops.
705: */
1.166 cvs 706:
1.7 cvs 707: if (HTRequest_doRetry (request))
708: {
1.174 cvs 709: /*
710: ** Start request with new credentials
711: */
712:
1.166 cvs 713: /* only do a redirect using a network protocol understood by Amaya */
1.198 cvs 714: if (IsValidProtocol (ISO2WideChar (new_anchor->parent->address)))
1.7 cvs 715: {
1.166 cvs 716: /* if it's a valid URL, we try to normalize it */
1.206 ! cvs 717: /* We use the pre-redirection anchor as a base name */
! 718: dst = ISO2WideChar (new_anchor->parent->address);
! 719: escape_src = EscapeURL (ISO2WideChar (me->urlName));
! 720: if (escape_src)
! 721: {
! 722: ref = AmayaParseUrl (dst, escape_src, AMAYA_PARSE_ALL);
! 723: TtaFreeMemory (escape_src);
! 724: }
! 725: else
! 726: ref = NULL;
! 727:
1.7 cvs 728: if (ref)
729: {
1.98 cvs 730: HT_FREE (new_anchor->parent->address);
731: tmp = NULL;
1.198 cvs 732: HTSACopy (&tmp, WideChar2ISO (ref));
1.98 cvs 733: new_anchor->parent->address = tmp;
734: TtaFreeMemory (ref);
1.7 cvs 735: }
1.98 cvs 736: else
1.166 cvs 737: return HT_OK; /* We can't redirect anymore */
1.7 cvs 738: }
1.166 cvs 739: else
740: return HT_OK; /* We can't redirect anymore */
1.7 cvs 741:
742: /* update the current file name */
1.206 ! cvs 743: if ((me->mode & AMAYA_ASYNC)
! 744: || (me->mode & AMAYA_IASYNC)
! 745: || (me->method == METHOD_PUT))
1.7 cvs 746: {
1.130 cvs 747: TtaFreeMemory (me->urlName);
1.198 cvs 748: me->urlName = WideChar2ISO (TtaStrdup (ISO2WideChar (new_anchor->parent->address)));
1.7 cvs 749: }
750: else
1.130 cvs 751: /* it's a SYNC mode, so we should keep the urlName */
752: {
753: strncpy (me->urlName, new_anchor->parent->address,
754: MAX_LENGTH - 1);
755: me->urlName[MAX_LENGTH - 1] = EOS;
756: }
1.38 cvs 757: ChopURL (me->status_urlName, me->urlName);
1.116 cvs 758:
1.190 cvs 759: /* @@ verify if this is important */
760: /* @@@ new libwww doesn't need this free stream while making
761: a PUT. Is it the case everywhere or just for PUT? */
762: if (me->method != METHOD_PUT
1.192 cvs 763: && me->request->orig_output_stream != NULL)
764: {
765: AHTFWriter_FREE (me->request->orig_output_stream);
766: me->request->orig_output_stream = NULL;
767: if (me->output != stdout) { /* Are we writing to a file? */
1.74 cvs 768: #ifdef DEBUG_LIBWWW
1.192 cvs 769: fprintf (stderr, "redirection_handler: New URL is %s, closing "
770: "FILE %p\n", me->urlName, me->output);
1.74 cvs 771: #endif
1.192 cvs 772: fclose (me->output);
773: me->output = NULL;
774: }
1.79 cvs 775: }
1.68 cvs 776:
1.174 cvs 777: /* tell the user what we're doing */
778: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_RED_FETCHING),
1.198 cvs 779: ISO2WideChar (me->status_urlName));
1.174 cvs 780:
781:
1.171 cvs 782: /*
783: ** launch the request
784: */
1.192 cvs 785: /* add a link relationship? */
1.174 cvs 786: /* reset the request status */
1.116 cvs 787: me->reqStatus = HT_NEW;
1.105 cvs 788: /* clear the errors */
1.116 cvs 789: HTError_deleteAll (HTRequest_error (request));
1.105 cvs 790: HTRequest_setError (request, NULL);
1.192 cvs 791: /* clear the authentication credentials, as they get regenerated */
1.174 cvs 792: HTRequest_deleteCredentialsAll (request);
793:
1.171 cvs 794: if (me->method == METHOD_POST
795: || me->method == METHOD_PUT) /* PUT, POST etc. */
796: status = HTLoadAbsolute (me->urlName, request);
1.7 cvs 797: else
1.74 cvs 798: HTLoadAnchor (new_anchor, request);
1.7 cvs 799: }
800: else
1.68 cvs 801: {
1.74 cvs 802: HTRequest_addError (request, ERR_FATAL, NO, HTERR_MAX_REDIRECT,
803: NULL, 0, "HTRedirectFilter");
804: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_REDIRECTIONS_LIMIT),
805: NULL);
1.173 cvs 806: /* so that we can show the error message */
1.74 cvs 807: if (me->error_html)
1.173 cvs 808: DocNetworkStatus[me->docid] |= AMAYA_NET_ERROR;
809: me->reqStatus = HT_ERR;
1.68 cvs 810: }
811:
1.4 cvs 812: /*
1.74 cvs 813: ** By returning HT_ERROR we make sure that this is the last handler to be
814: ** called. We do this as we don't want any other filter to delete the
815: ** request object now when we have just started a new one ourselves
816: */
1.4 cvs 817: return HT_ERROR;
818: }
819:
1.151 cvs 820: #ifdef AMAYA_LOST_UPDATE
821: /*----------------------------------------------------------------------
822: precondition_handler
823: 412 "Precondition failed" handler
824: ----------------------------------------------------------------------*/
825: #if __STDC__
826: static int precondition_handler (HTRequest * request, HTResponse * response, void *context, int status)
827: #else
828: static int precondition_handler (request, response, context, status)
829: HTRequest *request;
830: HTResponse *response;
831: void *context;
832: int status;
833: #endif /* __STDC__ */
834: {
1.168 cvs 835: AHTReqContext *me = (AHTReqContext *) HTRequest_context (request);
836: HTAlertCallback *prompt = HTAlert_find (HT_A_CONFIRM);
1.191 cvs 837: ThotBool force_put;
1.151 cvs 838:
839: if (!me)
840: return HT_OK; /* not an Amaya request */
841:
1.168 cvs 842: if (prompt)
843: force_put = (*prompt) (request, HT_A_CONFIRM, HT_MSG_RULES,
844: NULL, NULL, NULL);
845: else
846: force_put = NO;
847:
848: if (force_put)
849: {
850: /* start a new PUT request without preconditions */
851: /* @@ do we need to kill the request? */
852: if (me->output && me->output != stdout)
853: {
854: fclose (me->output);
855: me->output = NULL;
856: }
857: /*
858: ** reset the Amaya and libwww request status
859: */
1.176 cvs 860:
861: /* start with a new, clean request structure */
862: HTRequest_delete (me->request);
863: me->request = HTRequest_new ();
864: /* clean the associated file structure) */
865: HTRequest_setOutputStream (me->request, NULL);
866: /* Initialize the other members of the structure */
1.171 cvs 867: HTRequest_setMethod (me->request, METHOD_GET);
1.176 cvs 868: HTRequest_setOutputFormat (me->request, WWW_SOURCE);
869: HTRequest_setContext (me->request, me);
870: HTRequest_setPreemptive (me->request, NO);
871: /*
872: ** Make sure that the first request is flushed immediately and not
873: ** buffered in the output buffer
874: */
875: if (me->mode & AMAYA_FLUSH_REQUEST)
876: HTRequest_setFlush(me->request, YES);
877:
1.171 cvs 878: /* turn off preconditions */
879: HTRequest_setPreconditions(me->request, HT_NO_MATCH);
880: me->reqStatus = HT_NEW;
881: /* make the request */
1.176 cvs 882: status = HTPutDocumentAnchor (HTAnchor_parent (me->source),
883: me->dest, me->request);
1.168 cvs 884: /* stop here */
885: return HT_ERROR;
886: }
887: else
888: {
889: /* abort the request */
890: /* @@ should we call StopRequest here? */
891: me->reqStatus = HT_ABORT;
892: /* stop here */
893: return HT_ERROR;
894: }
895: }
1.151 cvs 896:
1.168 cvs 897: /*----------------------------------------------------------------------
898: check_handler
899: Request HEAD checker filter
900: ----------------------------------------------------------------------*/
901: static int check_handler (HTRequest * request, HTResponse * response,
1.151 cvs 902: void * param, int status)
903: {
1.168 cvs 904: AHTReqContext *me = (AHTReqContext *) HTRequest_context (request);
905: HTAlertCallback *prompt = HTAlert_find (HT_A_CONFIRM);
1.191 cvs 906: ThotBool force_put;
1.168 cvs 907:
908: if (!me)
909: return HT_OK; /* not an Amaya request */
910:
911: HTRequest_deleteAfter(me->request, check_handler);
912: /*
913: ** If head request showed that the document doesn't exist
914: ** then just go ahead and PUT it. Otherwise ask for help
915: */
916: if (status == HT_ERROR || status == HT_INTERRUPTED || status == HT_TIMEOUT)
917: {
918: /* we'd need to call terminate_handler, to free the resources */
919: /* abort the request */
920: /* @@ should we call StopRequest here? */
921: me->reqStatus = HT_ABORT;
922: /* stop here */
923: return HT_ERROR;
924: }
925: else if (status == HT_NO_ACCESS || status == HT_NO_PROXY_ACCESS)
926: {
927: /* we'd need to call terminate_handler, to free the resources */
928: /* abort the request */
929: /* @@ should we call StopRequest here? */
930: me->reqStatus = HT_ABORT;
931: /* stop here */
932: return HT_ERROR;
933: }
934: else if ( (abs(status)/100) != 2)
935: {
1.176 cvs 936: /* start with a new, clean request structure */
937: HTRequest_delete (me->request);
938: me->request = HTRequest_new ();
939: /* clean the associated file structure) */
940: HTRequest_setOutputStream (me->request, NULL);
941: /* Initialize the other members of the structure */
1.171 cvs 942: HTRequest_setMethod (me->request, METHOD_GET);
1.176 cvs 943: HTRequest_setOutputFormat (me->request, WWW_SOURCE);
944: HTRequest_setContext (me->request, me);
945: HTRequest_setPreemptive (me->request, NO);
946: /*
947: ** Make sure that the first request is flushed immediately and not
948: ** buffered in the output buffer
949: */
950: if (me->mode & AMAYA_FLUSH_REQUEST)
951: HTRequest_setFlush(me->request, YES);
952:
953: /* turn on the special preconditions, to avoid having this
954: ressource appear before we do the PUT */
1.168 cvs 955: HTRequest_setPreconditions(me->request, HT_DONT_MATCH_ANY);
1.171 cvs 956: me->reqStatus = HT_NEW;
1.168 cvs 957: status = HTPutDocumentAnchor (HTAnchor_parent (me->source), me->dest, me->request);
958: return HT_ERROR; /* stop here */
1.176 cvs 959: }
1.168 cvs 960: else
961: {
962: if (prompt)
963: force_put = (*prompt) (request, HT_A_CONFIRM, HT_MSG_FILE_REPLACE,
964: NULL, NULL, NULL);
965: else
966: force_put = FALSE;
967:
968: if (force_put)
1.151 cvs 969: {
970: /* Start a new PUT request without preconditions */
1.176 cvs 971:
972: /* get a new, clean request structure */
973: HTRequest_delete (me->request);
974: me->request = HTRequest_new ();
975: /* clean the associated file structure) */
976: HTRequest_setOutputStream (me->request, NULL);
977: /* Initialize the other members of the structure */
1.171 cvs 978: HTRequest_setMethod (me->request, METHOD_GET);
1.176 cvs 979: HTRequest_setOutputFormat (me->request, WWW_SOURCE);
980: HTRequest_setContext (me->request, me);
981: HTRequest_setPreemptive (me->request, NO);
982: /*
983: ** Make sure that the first request is flushed immediately and not
984: ** buffered in the output buffer
985: */
986: if (me->mode & AMAYA_FLUSH_REQUEST)
987: HTRequest_setFlush(me->request, YES);
988: /* remove the preconditions */
1.168 cvs 989: HTRequest_setPreconditions(me->request, HT_NO_MATCH);
1.171 cvs 990: me->reqStatus = HT_NEW;
1.176 cvs 991: status = HTPutDocumentAnchor (HTAnchor_parent (me->source),
992: me->dest, me->request);
1.168 cvs 993: return HT_ERROR; /* stop here */
1.151 cvs 994: }
1.168 cvs 995: else
996: {
997: /* we'd need to call terminate_handler, to free the resources */
998: /* abort the request */
999: /* @@ should we call StopRequest here? */
1000: me->reqStatus = HT_ABORT;
1001: /* stop here */
1002: return HT_ERROR;
1003: }
1004: }
1005: return HT_ERROR;
1.151 cvs 1006: }
1007: #endif /* AMAYA_LOST_UPDATE */
1008:
1.5 cvs 1009: /*----------------------------------------------------------------------
1.17 cvs 1010: terminate_handler
1011: this function is registered to handle the result of the request
1.5 cvs 1012: ----------------------------------------------------------------------*/
1.4 cvs 1013: #if __STDC__
1.7 cvs 1014: static int terminate_handler (HTRequest * request, HTResponse * response, void *context, int status)
1.4 cvs 1015: #else
1016: static int terminate_handler (request, response, context, status)
1017: HTRequest *request;
1018: HTResponse *response;
1019: void *context;
1020: int status;
1.123 cvs 1021: #endif /* __STDC__ */
1.4 cvs 1022: {
1.116 cvs 1023: AHTReqContext *me = (AHTReqContext *) HTRequest_context (request);
1.191 cvs 1024: ThotBool error_flag;
1.116 cvs 1025: char *content_type;
1.184 cvs 1026: HTParentAnchor *anchor;
1.116 cvs 1027:
1028: if (!me)
1.153 cvs 1029: return HT_ERROR; /* not an Amaya request */
1.116 cvs 1030:
1031: if (me->reqStatus == HT_END)
1032: /* we have already processed this request! */
1033: return HT_OK;
1034:
1035: /* if Amaya was killed, treat with this request as if it were
1036: issued by a Stop button event */
1037:
1038: if (!AmayaIsAlive ())
1.80 cvs 1039: me->reqStatus = HT_ABORT;
1.74 cvs 1040:
1.77 cvs 1041: if (status == HT_LOADED ||
1042: status == HT_CREATED ||
1.79 cvs 1043: status == HT_NO_DATA ||
1.160 cvs 1044: /* kludge for work around libwww problem */
1045: (status == HT_INTERRUPTED && me->method == METHOD_PUT) ||
1.116 cvs 1046: #ifdef AMAYA_WWW_CACHE
1047: /* what status to use to know we're downloading from a cache? */
1048: status == HT_NOT_MODIFIED ||
1049: #endif /* AMAYA_WWW_CACHE */
1.79 cvs 1050: me->reqStatus == HT_ABORT)
1.74 cvs 1051: error_flag = FALSE;
1.13 cvs 1052: else
1.74 cvs 1053: error_flag = TRUE;
1.130 cvs 1054:
1.4 cvs 1055: /* output any errors from the server */
1.130 cvs 1056:
1.77 cvs 1057: /*
1.74 cvs 1058: ** me->output = output file which will receive an html file
1059: ** me->error_html = yes, output HTML errors in the screen
1060: ** request->error_stack == if there are any errors, they will be here
1061: ** me->error_stream_size If it's != 0 means an error message has already
1062: ** been written to the stack
1063: */
1064:
1.4 cvs 1065: /* First, we verify if there are any errors and if they are not
1.17 cvs 1066: ** yet written to the error stack. If no, then let's try to write them
1067: ** ourselves
1068: */
1.74 cvs 1069:
1070: #ifdef DEBUG_LIBWWW
1071: fprintf (stderr, "terminate_handler: URL is "
1072: "%s, closing FILE %p status is %d\n", me->urlName, me->output,
1073: status);
1.69 cvs 1074: #endif
1.74 cvs 1075:
1.69 cvs 1076: if (me->output && me->output != stdout)
1077: {
1.74 cvs 1078: /* we are writing to a file */
1079: if (me->reqStatus != HT_ABORT)
1080: { /* if the request was not aborted and */
1.80 cvs 1081: if (error_flag &&
1082: me->error_html == TRUE)
1083: /* there were some errors and we want to print them */
1084: {
1085: if (me->error_stream_size == 0)/* and the stream is empty */
1086: AHTError_MemPrint (request); /* copy errors from
1.74 cvs 1087: **the error stack
1.77 cvs 1088: ** into the error stream */
1.80 cvs 1089: if (me->error_stream)
1090: { /* if the stream is non-empty */
1091: fprintf (me->output, me->error_stream);/* output the errors */
1.85 cvs 1092: /* Clear the error context, so that we can deal with
1093: this answer as if it were a normal reply */
1094: HTError_deleteAll( HTRequest_error (request));
1095: HTRequest_setError (request, NULL);
1096: error_flag = 0;
1.74 cvs 1097: }
1098: } /* if error_stack */
1.85 cvs 1099: }
1100:
1101: /* if != HT_ABORT */
1102:
1103: #ifdef DEBUG_LIBWWW
1104: fprintf (stderr, "terminate_handler: URL is %s, closing "
1105: "FILE %p\n", me->urlName, me->output);
1106: #endif
1.74 cvs 1107: fclose (me->output);
1108: me->output = NULL;
1.69 cvs 1109: }
1.80 cvs 1110:
1111: if (error_flag)
1112: me->reqStatus = HT_ERR;
1113: else if (me->reqStatus != HT_ABORT)
1114: me->reqStatus = HT_END;
1.151 cvs 1115:
1.116 cvs 1116: /* copy the content_type */
1.151 cvs 1117: if (!me->content_type)
1.88 cvs 1118: {
1.184 cvs 1119: anchor = HTRequest_anchor (request);
1120: if (anchor && HTAnchor_format (anchor))
1121: content_type = HTAtom_name (HTAnchor_format (anchor));
1.154 cvs 1122: else
1123: content_type = "www/unknown";
1124:
1.151 cvs 1125: if (content_type && content_type [0] != EOS)
1126: {
1127: /* libwww gives www/unknown when it gets an error. As this is
1128: an HTML test, we force the type to text/html */
1129: if (!strcmp (content_type, "www/unknown"))
1.198 cvs 1130: me->content_type = WideChar2ISO (TtaStrdup (TEXT("text/html")));
1.151 cvs 1131: else
1.198 cvs 1132: me->content_type = WideChar2ISO (TtaStrdup (ISO2WideChar (content_type)));
1.151 cvs 1133:
1134: /* Content-Type can be specified by an httpd server's admin.
1135: To be on the safe side, we normalize its case */
1.198 cvs 1136: ConvertToLowerCase (ISO2WideChar (me->content_type));
1.151 cvs 1137:
1.88 cvs 1138: #ifdef DEBUG_LIBWWW
1.151 cvs 1139: fprintf (stderr, "content type is: %s\n", me->content_type);
1.88 cvs 1140: #endif /* DEBUG_LIBWWW */
1.151 cvs 1141: }
1142: }
1.114 cvs 1143:
1.115 cvs 1144: /* to avoid a hangup while downloading css files */
1.140 cvs 1145: if (AmayaAlive_flag && (me->mode & AMAYA_LOAD_CSS))
1.116 cvs 1146: TtaSetStatus (me->docid, 1,
1147: TtaGetMessage (AMAYA, AM_ELEMENT_LOADED),
1.198 cvs 1148: ISO2WideChar (me->status_urlName));
1.116 cvs 1149:
1150: /* don't remove or Xt will hang up during the PUT */
1151: if (AmayaIsAlive () && ((me->method == METHOD_POST) ||
1152: (me->method == METHOD_PUT)))
1.7 cvs 1153: {
1.80 cvs 1154: PrintTerminateStatus (me, status);
1155: }
1.114 cvs 1156:
1.111 cvs 1157: ProcessTerminateRequest (request, response, context, status);
1.116 cvs 1158:
1.151 cvs 1159: /* stop here */
1.150 cvs 1160: return HT_ERROR;
1.4 cvs 1161: }
1162:
1.5 cvs 1163: /*----------------------------------------------------------------------
1.17 cvs 1164: AHTLoadTerminate_handler
1.74 cvs 1165: this is an application "AFTER" Callback. It's called by the library
1166: when a request has ended, so that we can setup the correct status.
1.5 cvs 1167: ----------------------------------------------------------------------*/
1.4 cvs 1168:
1169: #ifdef __STDC__
1.111 cvs 1170: int AHTLoadTerminate_handler (HTRequest * request, HTResponse * response, void *param, int status)
1.4 cvs 1171: #else
1.111 cvs 1172: int AHTLoadTerminate_handler (request, response, param, status)
1.4 cvs 1173: HTRequest *request;
1174: HTResponse *response;
1175: void *param;
1176: int status;
1.69 cvs 1177:
1.4 cvs 1178: #endif
1179: {
1.116 cvs 1180:
1181: /** @@@@ use this with printstatus ?? */
1182:
1.4 cvs 1183: AHTReqContext *me = HTRequest_context (request);
1184: HTAlertCallback *cbf;
1185: AHTDocId_Status *docid_status;
1186:
1.7 cvs 1187: switch (status)
1.116 cvs 1188: {
1189: case HT_LOADED:
1190: if (PROT_TRACE)
1191: HTTrace ("Load End.... OK: `%s\' has been accessed\n",
1192: me->status_urlName);
1.4 cvs 1193:
1.116 cvs 1194: docid_status = GetDocIdStatus (me->docid,
1195: Amaya->docid_status);
1.7 cvs 1196:
1.116 cvs 1197: if (docid_status != NULL && docid_status->counter > 1)
1198: TtaSetStatus (me->docid, 1,
1199: TtaGetMessage (AMAYA, AM_ELEMENT_LOADED),
1.198 cvs 1200: ISO2WideChar (me->status_urlName));
1.7 cvs 1201: break;
1.116 cvs 1202:
1203: case HT_NO_DATA:
1204: if (PROT_TRACE)
1205: HTTrace ("Load End.... OK BUT NO DATA: `%s\'\n",
1206: me->status_urlName);
1207: TtaSetStatus (me->docid, 1,
1208: TtaGetMessage (AMAYA, AM_LOADED_NO_DATA),
1.198 cvs 1209: ISO2WideChar (me->status_urlName));
1.116 cvs 1210: break;
1211:
1212: case HT_INTERRUPTED:
1213: if (PROT_TRACE)
1214: HTTrace ("Load End.... INTERRUPTED: `%s\'\n",
1215: me->status_urlName);
1216: TtaSetStatus (me->docid, 1,
1217: TtaGetMessage (AMAYA, AM_LOAD_ABORT),
1218: NULL);
1219: break;
1.7 cvs 1220:
1.116 cvs 1221: case HT_RETRY:
1222: if (PROT_TRACE)
1223: HTTrace ("Load End.... NOT AVAILABLE, RETRY AT %ld\n",
1224: HTResponse_retryTime (response));
1225: TtaSetStatus (me->docid, 1,
1226: TtaGetMessage (AMAYA, AM_NOT_AVAILABLE_RETRY),
1.198 cvs 1227: ISO2WideChar (me->status_urlName));
1.116 cvs 1228: break;
1.7 cvs 1229:
1.116 cvs 1230: case HT_ERROR:
1231: cbf = HTAlert_find (HT_A_MESSAGE);
1232: if (cbf)
1233: (*cbf) (request, HT_A_MESSAGE, HT_MSG_NULL, NULL,
1234: HTRequest_error (request), NULL);
1235: break;
1236:
1237: if (PROT_TRACE)
1238: HTTrace ("Load End.... ERROR: Can't access `%s\'\n",
1239: me->status_urlName ? me->status_urlName :"<UNKNOWN>");
1240: TtaSetStatus (me->docid, 1,
1241: TtaGetMessage (AMAYA, AM_CANNOT_LOAD),
1.198 cvs 1242: me->status_urlName ? ISO2WideChar (me->status_urlName) : TEXT("<UNKNOWN>"));
1.116 cvs 1243: break;
1244: default:
1245: if (PROT_TRACE)
1246: HTTrace ("Load End.... UNKNOWN RETURN CODE %d\n", status);
1247: break;
1248: }
1249:
1250: return HT_OK;
1251: }
1.7 cvs 1252:
1.116 cvs 1253: #ifdef DEBUG_LIBWWW
1254: static int LineTrace (const char * fmt, va_list pArgs)
1255: {
1256: return (vfprintf(stderr, fmt, pArgs));
1.4 cvs 1257: }
1.116 cvs 1258: #endif DEBUG_LIBWWW
1.4 cvs 1259:
1.27 cvs 1260: /*----------------------------------------------------------------------
1261: AHTAcceptTypesInit
1.74 cvs 1262: This function prepares the Accept header used by Amaya during
1263: the HTTP content negotiation phase
1.27 cvs 1264: ----------------------------------------------------------------------*/
1265: #ifdef __STDC__
1266: static void AHTAcceptTypesInit (HTList *c)
1267: #else /* __STDC__ */
1268: static void AHTAcceptTypesInit (c)
1269: HTList *c;
1270: #endif /* __STDC__ */
1271: {
1272: if (c == (HTList *) NULL)
1273: return;
1274:
1275: /* define here all the mime types that Amaya can accept */
1276:
1.74 cvs 1277: HTConversion_add (c, "image/png", "www/present",
1278: HTThroughLine, 1.0, 0.0, 0.0);
1279: HTConversion_add (c, "image/jpeg", "www/present",
1280: HTThroughLine, 1.0, 0.0, 0.0);
1281: HTConversion_add (c, "image/gif", "www/present",
1282: HTThroughLine, 1.0, 0.0, 0.0);
1283: HTConversion_add (c, "image/xbm", "www/present",
1284: HTThroughLine, 1.0, 0.0, 0.0);
1285: HTConversion_add (c, "image/xpm", "www/present",
1286: HTThroughLine, 1.0, 0.0, 0.0);
1.183 cvs 1287:
1.27 cvs 1288: /* Define here the equivalences between MIME types and file extensions for
1289: the types that Amaya can display */
1290:
1.176 cvs 1291: /* Initialize suffix bindings for local files */
1292: HTBind_init();
1293:
1.27 cvs 1294: /* Register the default set of file suffix bindings */
1295: HTFileInit ();
1296:
1297: /* Don't do any case distinction */
1298: HTBind_caseSensitive (FALSE);
1299: }
1.4 cvs 1300:
1.5 cvs 1301: /*----------------------------------------------------------------------
1.193 cvs 1302: AHTAcceptLanguagesInit
1303: This function prepares the Accept header used by Amaya during
1304: the HTTP content negotiation phase
1305: ----------------------------------------------------------------------*/
1306: #ifdef __STDC__
1.196 cvs 1307: static void AHTAcceptLanguagesInit (HTList *c)
1.193 cvs 1308: #else /* __STDC__ */
1.196 cvs 1309: static void AHTAcceptLanguagesInit (c)
1.193 cvs 1310: HTList *c;
1311: #endif /* __STDC__ */
1312: {
1.196 cvs 1313: STRING ptr;
1314: STRING lang_list;
1315: CHAR_T s[3];
1316: int count, lg;
1317: double quality;
1318: ThotBool still;
1.193 cvs 1319:
1320: if (c == (HTList *) NULL)
1321: return;
1322:
1.203 cvs 1323: lang_list = TtaGetEnvString ("ACCEPT_LANGUAGES");
1.197 cvs 1324: s[2] = EOS;
1.196 cvs 1325: if (lang_list && *lang_list != EOS)
1.193 cvs 1326: {
1327: /* add the default language first */
1328: HTLanguage_add (c, "*", -1.0);
1329: /* how many languages do we have? */
1.196 cvs 1330: ptr = lang_list;
1331: count = 0;
1332: while (*ptr != EOS)
1333: {
1334: while (*ptr != EOS &&
1335: (*ptr < 'A' || (*ptr > 'Z' && *ptr < 'a') || *ptr > 'z'))
1336: /* skip the whole separator */
1337: ptr++;
1338: lg = 0;
1339: while ((*ptr >= 'A' && *ptr <= 'Z') || (*ptr >= 'a' && *ptr <= 'z') || *ptr == '-')
1340: {
1341: /* it's a new language */
1342: ptr++;
1343: lg++;
1344: }
1345: if (lg >= 2)
1.193 cvs 1346: count++;
1.196 cvs 1347: if (*ptr != EOS)
1348: ptr++;
1349: }
1.193 cvs 1350:
1.196 cvs 1351: if (count > 0)
1.193 cvs 1352: quality = 1.1 - (double) count/10.0;
1353: else
1354: quality = 1.0;
1355:
1.196 cvs 1356: /*
1357: Read the languages from the registry, then inject them one, by one.
1358: The first one is the one with the highest priority.
1359: The libwww ask for the lowest priority first.
1360: */
1361: ptr--;
1362: still = TRUE;
1363: while (count)
1.193 cvs 1364: {
1.196 cvs 1365: while (still &&
1366: (*ptr < 'A' || (*ptr > 'Z' && *ptr < 'a') || *ptr > 'z'))
1367: /* skip the whole separator */
1368: if (ptr > lang_list)
1369: ptr--;
1370: else
1371: still = FALSE;
1372: lg = 0;
1373: while (still &&
1374: ((*ptr >= 'A' && *ptr <= 'Z') || (*ptr >= 'a' && *ptr <= 'z') || *ptr == '-'))
1375: {
1376: /* it's a new language */
1377: if (ptr > lang_list)
1378: ptr--;
1379: else
1380: still = FALSE;
1381: lg++;
1382: }
1383: if (lg >= 2)
1384: {
1385: if (still)
1386: ustrncpy (s, &ptr[1], 2);
1387: else
1388: ustrncpy (s, lang_list, 2);
1389: count--;
1.198 cvs 1390: HTLanguage_add (c, WideChar2ISO(s), quality);
1.196 cvs 1391: quality += 0.1;
1392: }
1393: ptr--;
1.193 cvs 1394: }
1395: }
1396: }
1397:
1398: /*----------------------------------------------------------------------
1.17 cvs 1399: AHTConverterInit
1400: Bindings between a source media type and a destination media type
1401: (conversion).
1.5 cvs 1402: ----------------------------------------------------------------------*/
1.15 cvs 1403: #ifdef __STDC__
1404: static void AHTConverterInit (HTList *c)
1405: #else /* __STDC__ */
1406: static void AHTConverterInit (c)
1407: HTList *c;
1408: #endif /* __STDC__ */
1.4 cvs 1409: {
1410:
1411: /* Handler for custom http error messages */
1.7 cvs 1412: HTConversion_add (c, "*/*", "www/debug", AHTMemConverter, 1.0, 0.0, 0.0);
1.4 cvs 1413:
1414: /*
1415: ** These are converters that converts to something other than www/present,
1416: ** that is not directly outputting someting to the user on the screen
1417: */
1418:
1.116 cvs 1419: HTConversion_add (c, "message/rfc822", "*/*", HTMIMEConvert,
1420: 1.0, 0.0, 0.0);
1.4 cvs 1421: HTConversion_add (c, "message/x-rfc822-foot", "*/*", HTMIMEFooter,
1422: 1.0, 0.0, 0.0);
1423: HTConversion_add (c, "message/x-rfc822-head", "*/*", HTMIMEHeader,
1424: 1.0, 0.0, 0.0);
1.116 cvs 1425: HTConversion_add(c,"message/x-rfc822-cont", "*/*", HTMIMEContinue,
1426: 1.0, 0.0, 0.0);
1427: HTConversion_add(c,"message/x-rfc822-partial","*/*", HTMIMEPartial,
1428: 1.0, 0.0, 0.0);
1.4 cvs 1429: HTConversion_add (c, "multipart/*", "*/*", HTBoundary,
1430: 1.0, 0.0, 0.0);
1431: HTConversion_add (c, "text/plain", "text/html", HTPlainToHTML,
1432: 1.0, 0.0, 0.0);
1433:
1434: /*
1.116 cvs 1435: ** The following conversions are converting ASCII output from various
1436: ** protocols to HTML objects.
1437: */
1.4 cvs 1438: HTConversion_add (c, "text/x-http", "*/*", HTTPStatus_new,
1439: 1.0, 0.0, 0.0);
1440:
1441: /*
1.116 cvs 1442: ** We also register a special content type guess stream that can figure out
1443: ** the content type by reading the first bytes of the stream
1444: */
1.4 cvs 1445: HTConversion_add (c, "www/unknown", "*/*", HTGuess_new,
1446: 1.0, 0.0, 0.0);
1447:
1.116 cvs 1448: #ifdef AMAYA_WWW_CACHE
1.4 cvs 1449: /*
1.116 cvs 1450: ** Register a persistent cache stream which can save an object to local
1451: ** file
1452: */
1.4 cvs 1453: HTConversion_add (c, "www/cache", "*/*", HTCacheWriter,
1454: 1.0, 0.0, 0.0);
1.116 cvs 1455: HTConversion_add(c,"www/cache-append", "*/*", HTCacheAppend,
1456: 1.0, 0.0, 0.0);
1457: #endif AMAYA_WWW_CACHE
1.4 cvs 1458:
1459: /*
1.116 cvs 1460: ** This dumps all other formats to local disk without any further
1461: ** action taken
1462: */
1.4 cvs 1463: HTConversion_add (c, "*/*", "www/present", HTSaveLocally,
1.190 cvs 1464: 0.3, 0.0, 0.0);
1.4 cvs 1465: }
1466:
1.27 cvs 1467:
1.15 cvs 1468: /*----------------------------------------------------------------------
1.17 cvs 1469: AHTProtocolInit
1470: Registers all amaya supported protocols.
1.15 cvs 1471: ----------------------------------------------------------------------*/
1.4 cvs 1472: static void AHTProtocolInit (void)
1473: {
1.116 cvs 1474: char *strptr;
1.4 cvs 1475:
1.116 cvs 1476: /*
1477: NB. Preemptive == YES means Blocking requests
1478: Non-preemptive == NO means Non-blocking requests
1479: */
1480: HTTransport_add("tcp", HT_TP_SINGLE, HTReader_new, HTWriter_new);
1481: HTTransport_add("buffered_tcp", HT_TP_SINGLE, HTReader_new,
1482: HTBufferWriter_new);
1483: HTProtocol_add ("http", "buffered_tcp", HTTP_PORT, NO, HTLoadHTTP, NULL);
1.136 cvs 1484: #ifdef _WINDOWS
1485: HTProtocol_add ("file", "local", 0, YES, HTLoadFile, NULL);
1486: #else
1.116 cvs 1487: HTProtocol_add ("file", "local", 0, NO, HTLoadFile, NULL);
1.198 cvs 1488: #endif /* _WINDOWS */
1.116 cvs 1489: #ifdef AMAYA_WWW_CACHE
1490: HTProtocol_add("cache", "local", 0, YES, HTLoadCache, NULL);
1491: #endif /* AMAYA_WWW_CACHE */
1.103 cvs 1492: #if 0 /* experimental code */
1.116 cvs 1493: HTProtocol_add ("ftp", "tcp", FTP_PORT, NO, HTLoadFTP, NULL);
1.17 cvs 1494: #endif
1.116 cvs 1495:
1496: /* initialize pipelining */
1.203 cvs 1497: strptr = (char *) TtaGetEnvString ("ENABLE_PIPELINING");
1.116 cvs 1498: if (strptr && *strptr && strcasecmp (strptr,"yes" ))
1499: HTTP_setConnectionMode (HTTP_11_NO_PIPELINING);
1.4 cvs 1500: }
1501:
1.15 cvs 1502: /*----------------------------------------------------------------------
1.17 cvs 1503: AHTNetInit
1504: Reegisters "before" and "after" request filters.
1.15 cvs 1505: ----------------------------------------------------------------------*/
1.4 cvs 1506: static void AHTNetInit (void)
1507: {
1508:
1509: /* Register BEFORE filters
1.74 cvs 1510: ** The BEFORE filters handle proxies, caches, rule files etc.
1511: ** The filters are called in the order by which the are registered
1512: ** Not done automaticly - may be done by application!
1513: */
1.4 cvs 1514:
1.116 cvs 1515: HTNet_addBefore (HTCredentialsFilter, "http://*", NULL, HT_FILTER_LATE);
1516: HTNet_addBefore (HTProxyFilter, NULL, NULL, HT_FILTER_LATE);
1.85 cvs 1517: HTHost_setActivateRequestCallback (AHTOpen_file);
1.4 cvs 1518:
1519: /* register AFTER filters
1.74 cvs 1520: ** The AFTER filters handle error messages, logging, redirection,
1521: ** authentication etc.
1522: ** The filters are called in the order by which the are registered
1523: ** Not done automaticly - may be done by application!
1524: */
1.4 cvs 1525:
1.116 cvs 1526: HTNet_addAfter (HTAuthFilter, "http://*", NULL, HT_NO_ACCESS,
1527: HT_FILTER_MIDDLE);
1528: HTNet_addAfter(HTAuthFilter, "http://*", NULL, HT_REAUTH,
1529: HT_FILTER_MIDDLE);
1530: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_PERM_REDIRECT,
1531: HT_FILTER_MIDDLE);
1532: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_FOUND,
1533: HT_FILTER_MIDDLE);
1534: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_SEE_OTHER,
1535: HT_FILTER_MIDDLE);
1536: HTNet_addAfter (redirection_handler, "http://*", NULL, HT_TEMP_REDIRECT,
1537: HT_FILTER_MIDDLE);
1.168 cvs 1538: HTNet_addAfter(HTAuthInfoFilter, "http://*", NULL, HT_ALL,
1539: HT_FILTER_MIDDLE);
1.116 cvs 1540: HTNet_addAfter (HTUseProxyFilter, "http://*", NULL, HT_USE_PROXY,
1541: HT_FILTER_MIDDLE);
1.151 cvs 1542: #ifdef AMAYA_LOST_UPDATE
1543: HTNet_addAfter (precondition_handler, NULL, NULL, HT_PRECONDITION_FAILED,
1544: HT_FILTER_MIDDLE);
1545: #endif /* AMAYA_LOST_UPDATE */
1.111 cvs 1546: #ifndef _WINDOWS
1.116 cvs 1547: HTNet_addAfter (AHTLoadTerminate_handler, NULL, NULL, HT_ALL,
1548: HT_FILTER_LAST);
1.111 cvs 1549: #endif /* !_WINDOWS */
1.116 cvs 1550: /**** for later ?? ****/
1551: /* HTNet_addAfter(HTInfoFilter, NULL, NULL, HT_ALL, HT_FILTER_LATE); */
1.51 cvs 1552: /* handles all errors */
1.116 cvs 1553: HTNet_addAfter (terminate_handler, NULL, NULL, HT_ALL, HT_FILTER_LAST);
1.4 cvs 1554: }
1555:
1.15 cvs 1556: /*----------------------------------------------------------------------
1.17 cvs 1557: AHTAlertInit
1558: Register alert messages and their callbacks.
1.15 cvs 1559: ----------------------------------------------------------------------*/
1560: #ifdef __STDC__
1561: static void AHTAlertInit (void)
1562: #else
1563: static void AHTAlertInit ()
1564: #endif
1565: {
1566: HTAlert_add (AHTProgress, HT_A_PROGRESS);
1.120 cvs 1567: #ifdef __WINDOWS
1.70 cvs 1568: HTAlert_add ((HTAlertCallback *) WIN_Activate_Request, HT_PROG_CONNECT);
1.116 cvs 1569: #endif /* _WINDOWS */
1.15 cvs 1570: HTAlert_add (AHTError_print, HT_A_MESSAGE);
1.48 cvs 1571: HTError_setShow (~((unsigned int) 0 ) & ~((unsigned int) HT_ERR_SHOW_DEBUG)); /* process all messages except debug ones*/
1.15 cvs 1572: HTAlert_add (AHTConfirm, HT_A_CONFIRM);
1573: HTAlert_add (AHTPrompt, HT_A_PROMPT);
1574: HTAlert_add (AHTPromptUsernameAndPassword, HT_A_USER_PW);
1.116 cvs 1575: }
1576:
1.128 cvs 1577: /*----------------------------------------------------------------------
1578: libwww_CleanCache
1579: frontend to the recursive cache cleaning function
1580: ----------------------------------------------------------------------*/
1581: #ifdef __STDC__
1582: void libwww_CleanCache (void)
1583: #else
1584: void libwww_CleanCache ()
1585: Document doc;
1586: View view;
1587: #endif /* __STDC__ */
1588: {
1.130 cvs 1589: #ifdef AMAYA_WWW_CACHE
1.198 cvs 1590: STRING real_dir;
1591: STRING cache_dir;
1592: STRING tmp;
1.128 cvs 1593: int cache_size;
1.177 cvs 1594: int cache_expire;
1595: int cache_disconnect;
1.191 cvs 1596: ThotBool error;
1.185 cvs 1597: STRING ptr;
1.130 cvs 1598:
1.128 cvs 1599: if (!HTCacheMode_enabled ())
1.183 cvs 1600: /* don't do anything if we're not using a cache */
1601: return;
1.128 cvs 1602: /* temporarily close down the cache, purge it, then restart */
1.198 cvs 1603: tmp = ISO2WideChar (HTCacheMode_getRoot ());
1.190 cvs 1604: /* don't do anything if we don't have a valid cache dir */
1605: if (!tmp || *tmp == EOS)
1606: return;
1607: cache_dir = TtaStrdup (tmp);
1.128 cvs 1608: cache_size = HTCacheMode_maxSize ();
1.177 cvs 1609: cache_expire = HTCacheMode_expires ();
1610: cache_disconnect = HTCacheMode_disconnected ();
1611:
1.185 cvs 1612: /* get something we can work on :) */
1.198 cvs 1613: tmp = ISO2WideChar (HTWWWToLocal (WideChar2ISO (cache_dir), "file:", NULL));
1614: real_dir = TtaAllocString (ustrlen (tmp) + 20);
1615: ustrcpy (real_dir, tmp);
1.190 cvs 1616: HT_FREE (tmp);
1.185 cvs 1617:
1618: /* safeguard... abort the operation if cache_dir doesn't end with
1619: CACHE_DIR_NAME */
1620: error = TRUE;
1.198 cvs 1621: ptr = ustrstr (real_dir, CACHE_DIR_NAME);
1622: if (ptr && *ptr && !ustrcasecmp (ptr, CACHE_DIR_NAME))
1.185 cvs 1623: error = FALSE;
1624: if (error)
1625: return;
1626:
1.130 cvs 1627: /* remove the concurrent cache lock */
1628: #ifdef DEBUG_LIBWWW
1629: fprintf (stderr, "Clearing the cache lock\n");
1630: #endif /* DEBUG_LIBWWW */
1631: clear_cachelock ();
1.128 cvs 1632: HTCacheTerminate ();
1.185 cvs 1633: HTCacheMode_setEnabled (FALSE);
1634:
1635: RecCleanCache (real_dir);
1.128 cvs 1636:
1.177 cvs 1637: HTCacheMode_setExpires (cache_expire);
1638: HTCacheMode_setDisconnected (cache_disconnect);
1.198 cvs 1639: HTCacheInit (WideChar2ISO (cache_dir), cache_size);
1.130 cvs 1640: /* set a new concurrent cache lock */
1.198 cvs 1641: ustrcat (real_dir, TEXT(".lock"));
1.185 cvs 1642: if (set_cachelock (real_dir) == -1)
1.130 cvs 1643: /* couldn't open the .lock file, so, we close the cache to
1644: be in the safe side */
1645: {
1646: #ifdef DEBUG_LIBWWW
1647: fprintf (stderr, "couldnt set the cache lock\n");
1648: #endif /* DEBUG_LIBWWW */
1649: HTCacheTerminate ();
1.185 cvs 1650: HTCacheMode_setEnabled (FALSE);
1.130 cvs 1651: }
1652: #ifdef DEBUG_LIBWWW
1653: fprintf (stderr, "set a cache lock\n");
1654: #endif /* DEBUG_LIBWWW */
1.185 cvs 1655: TtaFreeMemory (real_dir);
1.128 cvs 1656: TtaFreeMemory (cache_dir);
1657: #endif /* AMAYA_WWW_CACHE */
1658: }
1659:
1.118 cvs 1660: #ifdef AMAYA_WWW_CACHE
1661: /*----------------------------------------------------------------------
1.128 cvs 1662: RecCleanCache
1.118 cvs 1663: Clears an existing cache directory
1664: ----------------------------------------------------------------------*/
1665: #ifdef __STDC__
1.198 cvs 1666: static void RecCleanCache (STRING dirname)
1.118 cvs 1667: #else
1.198 cvs 1668: static void RecCleanCache (dirname)
1669: STRING dirname;
1.118 cvs 1670: #endif /* __STDC__ */
1.128 cvs 1671:
1672: #ifdef _WINDOWS
1673: {
1674: HANDLE hFindFile;
1.191 cvs 1675: ThotBool status;
1.128 cvs 1676: WIN32_FIND_DATA ffd;
1677:
1.198 cvs 1678: CHAR_T t_dir [MAX_LENGTH];
1679: STRING ptr;
1.128 cvs 1680:
1.130 cvs 1681: /* create a t_dir name to start searching for files */
1.198 cvs 1682: if ((ustrlen (dirname) + 10) > MAX_LENGTH)
1.128 cvs 1683: /* ERROR: directory name is too big */
1684: return;
1685:
1.198 cvs 1686: ustrcpy (t_dir, dirname);
1.130 cvs 1687: /* save the end of the dirname. We'll use it to make
1688: a complete pathname when erasing files */
1.198 cvs 1689: ptr = &t_dir[ustrlen (t_dir)];
1690: ustrcat (t_dir, TEXT("*"));
1.128 cvs 1691:
1.130 cvs 1692: hFindFile = FindFirstFile (t_dir, &ffd);
1.128 cvs 1693:
1694: if (hFindFile == INVALID_HANDLE_VALUE)
1695: /* nothing to erase? */
1696: return;
1697:
1698: status = TRUE;
1.130 cvs 1699: while (status)
1700: {
1701: if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
1.133 cvs 1702: {
1703: /* it's a directory, erase it recursively */
1.198 cvs 1704: if (ustrcmp (ffd.cFileName, TEXT("..")) && ustrcmp (ffd.cFileName, TEXT(".")))
1.133 cvs 1705: {
1.198 cvs 1706: ustrcpy (ptr, ffd.cFileName);
1707: ustrcat (ptr, DIR_STR);
1.133 cvs 1708: RecCleanCache (t_dir);
1.198 cvs 1709: urmdir (t_dir);
1.133 cvs 1710: }
1711: }
1712: else
1.130 cvs 1713: {
1.133 cvs 1714: /* it's a file, erase it */
1.198 cvs 1715: ustrcpy (ptr, ffd.cFileName);
1.133 cvs 1716: TtaFileUnlink (t_dir);
1.130 cvs 1717: }
1718: status = FindNextFile (hFindFile, &ffd);
1719: }
1.128 cvs 1720: FindClose (hFindFile);
1721: }
1722:
1723: #else /* _WINDOWS */
1.118 cvs 1724: {
1725: DIR *dp;
1726: struct stat st;
1727: #ifdef HAVE_DIRENT_H
1728: struct dirent *d;
1729: #else
1730: struct direct *d;
1731: #endif /* HAVE_DIRENT_H */
1.128 cvs 1732: char filename[BUFSIZ+1];
1.118 cvs 1733:
1734: if ((dp = opendir (dirname)) == NULL)
1735: {
1736: /* @@@ we couldn't open the directory ... we need some msg */
1737: perror (dirname);
1.176 cvs 1738: return;
1.118 cvs 1739: }
1740:
1741: while ((d = readdir (dp)) != NULL)
1742: {
1743: /* skip the UNIX . and .. links */
1744: if (!strcmp (d->d_name, "..")
1745: || !strcmp (d->d_name, "."))
1746: continue;
1747:
1.188 cvs 1748: sprintf (filename, "%s%c%s", dirname, DIR_SEP, d->d_name);
1.118 cvs 1749: if (lstat (filename, &st) < 0 )
1750: {
1751: /* @@2 need some error message */
1752: perror (filename);
1753: continue;
1754: }
1755:
1756: switch (st.st_mode & S_IFMT)
1757: {
1758: case S_IFDIR:
1759: /* if we find a directory, we erase it, recursively */
1.128 cvs 1760: strcat (filename, DIR_STR);
1761: RecCleanCache (filename);
1762: rmdir (filename);
1.118 cvs 1763: break;
1764: case S_IFLNK:
1765: /* skip any links we find */
1766: continue;
1767: break;
1768: default:
1769: /* erase the filename */
1770: TtaFileUnlink (filename);
1771: break;
1772: }
1773: }
1774: closedir (dp);
1775: }
1.128 cvs 1776: #endif /* _WINDOWS */
1.118 cvs 1777: #endif /* AMAYA_WWW_CACHE */
1778:
1.116 cvs 1779: /*----------------------------------------------------------------------
1780: CacheInit
1781: Reads the cache settings from the thot.ini file.
1782: ----------------------------------------------------------------------*/
1.118 cvs 1783: #ifdef __STDC__
1.116 cvs 1784: static void CacheInit (void)
1.118 cvs 1785: #else
1786: static void Cacheinit ()
1787: #endif
1788:
1.116 cvs 1789: {
1790: #ifndef AMAYA_WWW_CACHE
1791: HTCacheMode_setEnabled (NO);
1792:
1793: #else /* AMAYA_WWW_CACHE */
1.198 cvs 1794: STRING strptr;
1795: STRING cache_dir = NULL;
1796: STRING real_dir = NULL;
1797: STRING cache_lockfile;
1.130 cvs 1798: int cache_size;
1.176 cvs 1799: int cache_entry_size;
1.191 cvs 1800: ThotBool cache_enabled;
1801: ThotBool cache_locked;
1802: ThotBool tmp_bool;
1.130 cvs 1803:
1.185 cvs 1804: int i;
1805:
1.116 cvs 1806: /* activate cache? */
1.203 cvs 1807: strptr = TtaGetEnvString ("ENABLE_CACHE");
1.198 cvs 1808: if (strptr && *strptr && ustrcasecmp (strptr, TEXT("yes")))
1.130 cvs 1809: cache_enabled = NO;
1.116 cvs 1810: else
1.130 cvs 1811: cache_enabled = YES;
1.116 cvs 1812:
1.151 cvs 1813: /* cache protected documents? */
1.203 cvs 1814: strptr = TtaGetEnvString ("CACHE_PROTECTED_DOCS");
1.198 cvs 1815: if (strptr && *strptr && !ustrcasecmp (strptr, TEXT("yes")))
1.151 cvs 1816: HTCacheMode_setProtected (YES);
1817: else
1818: HTCacheMode_setProtected (NO);
1819:
1.116 cvs 1820: /* get the cache dir (or use a default one) */
1.203 cvs 1821: strptr = TtaGetEnvString ("CACHE_DIR");
1.116 cvs 1822: if (strptr && *strptr)
1823: {
1.198 cvs 1824: real_dir = TtaAllocString (ustrlen (strptr) + ustrlen (CACHE_DIR_NAME) + 20);
1825: ustrcpy (real_dir, strptr);
1826: if (*(real_dir + ustrlen (real_dir) - 1) != DIR_SEP)
1827: ustrcat (real_dir, DIR_STR);
1.116 cvs 1828: }
1829: else
1830: {
1.198 cvs 1831: real_dir = TtaAllocString (ustrlen (TempFileDirectory)
1832: + ustrlen (CACHE_DIR_NAME) + 20);
1833: usprintf (real_dir, TEXT("%s%s"), TempFileDirectory, CACHE_DIR_NAME);
1.185 cvs 1834: }
1835:
1836: /* compatiblity with previous versions of Amaya: does real_dir
1837: include CACHE_DIR_NAME? If not, add it */
1.198 cvs 1838: strptr = ustrstr (real_dir, CACHE_DIR_NAME);
1.185 cvs 1839: if (!strptr)
1840: {
1.198 cvs 1841: ustrcat (real_dir, CACHE_DIR_NAME);
1.185 cvs 1842: }
1843: else
1844: {
1.198 cvs 1845: i = ustrlen (CACHE_DIR_NAME);
1.185 cvs 1846: if (strptr[i] != EOS)
1.198 cvs 1847: ustrcat (real_dir, CACHE_DIR_NAME);
1.116 cvs 1848: }
1.185 cvs 1849:
1850:
1.198 cvs 1851: cache_dir = TtaAllocString (ustrlen (real_dir) + 10);
1852: usprintf (cache_dir, TEXT("file:%s"), real_dir);
1.116 cvs 1853:
1854: /* get the cache size (or use a default one) */
1.203 cvs 1855: strptr = TtaGetEnvString ("CACHE_SIZE");
1.116 cvs 1856: if (strptr && *strptr)
1.198 cvs 1857: cache_size = uctoi (strptr);
1.116 cvs 1858: else
1859: cache_size = DEFAULT_CACHE_SIZE;
1860:
1.176 cvs 1861: /* get the max cached file size (or use a default one) */
1.198 cvs 1862: if (!TtaGetEnvInt (TEXT("MAX_CACHE_ENTRY_SIZE"), &cache_entry_size))
1.176 cvs 1863: cache_entry_size = DEFAULT_MAX_CACHE_ENTRY_SIZE;
1864:
1.130 cvs 1865: if (cache_enabled)
1.116 cvs 1866: {
1867: /* how to remove the lock? force remove it? */
1.198 cvs 1868: cache_lockfile = TtaAllocString (ustrlen (real_dir) + 20);
1869: ustrcpy (cache_lockfile, real_dir);
1870: ustrcat (cache_lockfile, TEXT(".lock"));
1.130 cvs 1871: cache_locked = FALSE;
1872: if (TtaFileExist (cache_lockfile)
1873: && !(cache_locked = test_cachelock (cache_lockfile)))
1.116 cvs 1874: {
1.130 cvs 1875: #ifdef DEBUG_LIBWWW
1876: fprintf (stderr, "found a stale cache, removing it\n");
1877: #endif /* DEBUG_LIBWWW */
1878: /* remove the lock and clean the cache (the clean cache
1879: will remove all, making the following call unnecessary */
1880: /* little trick to win some memory */
1.198 cvs 1881: strptr = ustrrchr (cache_lockfile, TEXT('.'));
1.130 cvs 1882: *strptr = EOS;
1883: RecCleanCache (cache_lockfile);
1884: *strptr = '.';
1.116 cvs 1885: }
1886:
1.130 cvs 1887: if (!cache_locked)
1888: {
1889: /* initialize the cache if there's no other amaya
1890: instance running */
1.177 cvs 1891: HTCacheMode_setMaxCacheEntrySize (cache_entry_size);
1.198 cvs 1892: if (TtaGetEnvBoolean (TEXT("CACHE_EXPIRE_IGNORE"), &tmp_bool)
1.177 cvs 1893: && tmp_bool)
1894: HTCacheMode_setExpires (HT_EXPIRES_IGNORE);
1895: else
1896: HTCacheMode_setExpires (HT_EXPIRES_AUTO);
1.198 cvs 1897: TtaGetEnvBoolean (TEXT("CACHE_DISCONNECTED_MODE"), &tmp_bool);
1.177 cvs 1898: if (tmp_bool)
1899: HTCacheMode_setDisconnected (HT_DISCONNECT_NORMAL);
1900: else
1901: HTCacheMode_setDisconnected (HT_DISCONNECT_NONE);
1.198 cvs 1902: if (HTCacheInit (WideChar2ISO (cache_dir), cache_size))
1.130 cvs 1903: {
1.188 cvs 1904: if (set_cachelock (cache_lockfile) == -1)
1905: /* couldn't open the .lock file, so, we close the cache to
1906: be in the safe side */
1907: {
1908: HTCacheTerminate ();
1909: HTCacheMode_setEnabled (FALSE);
1910: #ifdef DEBUG_LIBWWW
1911: fprintf (stderr, "couldnt set the cache lock\n");
1912: #endif /* DEBUG_LIBWWW */
1913: }
1.130 cvs 1914: #ifdef DEBUG_LIBWWW
1.188 cvs 1915: else
1916: fprintf (stderr, "created the cache lock\n");
1.130 cvs 1917: #endif /* DEBUG_LIBWWW */
1918: }
1.188 cvs 1919: else
1920: {
1.130 cvs 1921: #ifdef DEBUG_LIBWWW
1.188 cvs 1922: fprintf (stderr, "couldn't create the cache\n");
1923: #endif /* DEBUG_LIBWWW */
1924: HTCacheTerminate ();
1925: }
1.130 cvs 1926: }
1927: else
1928: {
1.185 cvs 1929: HTCacheMode_setEnabled (FALSE);
1.130 cvs 1930: #ifdef DEBUG_LIBWWW
1931: fprintf (stderr, "lock detected, starting libwww without a cache/n");
1932: #endif /* DEBUG_LIBWWW */
1933: }
1934: TtaFreeMemory (cache_lockfile);
1.116 cvs 1935: }
1936: else
1.185 cvs 1937: {
1938: HTCacheMode_setEnabled (FALSE);
1939: }
1.116 cvs 1940: if (cache_dir)
1941: TtaFreeMemory (cache_dir);
1.189 cvs 1942: if (real_dir)
1943: TtaFreeMemory (real_dir);
1.185 cvs 1944: /* warn the user if the cache isn't active */
1945: if (cache_enabled && !HTCacheMode_enabled ())
1946: {
1947: #ifdef _WINDOWS
1.198 cvs 1948: MessageBox (NULL, TtaGetMessage (AMAYA, AM_CANT_CREATE_CACHE), TEXT("Cache"), MB_OK);
1.185 cvs 1949: #else /* !_WINDOWS */
1950: TtaDisplayMessage (CONFIRM, TtaGetMessage (AMAYA, AM_CANT_CREATE_CACHE),
1951: NULL);
1952: #endif /* _WINDOWS */
1953: }
1.116 cvs 1954: #endif /* AMAYA_WWW_CACHE */
1.15 cvs 1955: }
1956:
1957: /*----------------------------------------------------------------------
1.97 cvs 1958: ProxyInit
1959: Reads any proxies settings which may be declared as environmental
1960: variables or in the thot.ini file. The former overrides the latter.
1961: ----------------------------------------------------------------------*/
1.118 cvs 1962: #ifdef __STDC__
1.97 cvs 1963: static void ProxyInit (void)
1.118 cvs 1964: #else
1965: static void ProxyInit ()
1966: #endif /* __STDC__ */
1.97 cvs 1967: {
1.198 cvs 1968: STRING strptr;
1969: STRING str = NULL;
1970: STRING name;
1971: char* strptrA;
1.97 cvs 1972:
1973: /* get the proxy settings from the thot.ini file */
1.203 cvs 1974: strptr = TtaGetEnvString ("HTTP_PROXY");
1.97 cvs 1975: if (strptr && *strptr)
1.198 cvs 1976: HTProxy_add ("http", WideChar2ISO (strptr));
1.97 cvs 1977: /* get the no_proxy settings from the thot.ini file */
1.203 cvs 1978: strptr = TtaGetEnvString ("NO_PROXY");
1.97 cvs 1979: if (strptr && *strptr)
1980: {
1981: str = TtaStrdup (strptr); /* Get copy we can mutilate */
1982: strptr = str;
1.198 cvs 1983: strptrA = WideChar2ISO (strptr);
1.201 cvs 1984: while ((name = ISO2WideChar(HTNextField (&strptrA))) != NULL) {
1.198 cvs 1985: STRING portstr = ustrchr (name, TEXT(':'));
1.97 cvs 1986: unsigned port=0;
1.198 cvs 1987: if (portstr) {
1988: *portstr++ = EOS;
1989: if (*portstr) port = (unsigned) uctoi (portstr);
1.97 cvs 1990: }
1991: /* Register it for all access methods */
1.198 cvs 1992: HTNoProxy_add (WideChar2ISO (name), NULL, port);
1.97 cvs 1993: }
1994: TtaFreeMemory (str);
1995: }
1996:
1997: /* use libw3's routine to get all proxy settings from the environment */
1998: HTProxy_getEnvVar ();
1999: }
2000:
2001:
2002: /*----------------------------------------------------------------------
1.17 cvs 2003: AHTProfile_newAmaya
2004: creates the Amaya client profile for libwww.
1.15 cvs 2005: ----------------------------------------------------------------------*/
2006: #ifdef __STDC__
1.198 cvs 2007: static void AHTProfile_newAmaya (STRING AppName, STRING AppVersion)
1.15 cvs 2008: #else /* __STDC__ */
2009: static void AHTProfile_newAmaya (AppName, AppVersion)
1.198 cvs 2010: STRING AppName;
2011: STRING AppVersion;
1.15 cvs 2012: #endif /* __STDC__ */
1.4 cvs 2013: {
1.198 cvs 2014: STRING strptr;
1.158 cvs 2015:
1.4 cvs 2016: /* If the Library is not already initialized then do it */
2017: if (!HTLib_isInitialized ())
1.198 cvs 2018: HTLibInit (WideChar2ISO (AppName), WideChar2ISO (AppVersion));
1.4 cvs 2019:
2020: if (!converters)
2021: converters = HTList_new ();
1.27 cvs 2022: if (!acceptTypes)
2023: acceptTypes = HTList_new ();
1.193 cvs 2024: if (!acceptLanguages)
2025: acceptLanguages = HTList_new ();
1.151 cvs 2026: if (!transfer_encodings)
2027: transfer_encodings = HTList_new ();
2028: if (!content_encodings)
2029: content_encodings = HTList_new ();
1.4 cvs 2030:
1.169 cvs 2031: /* inhibits libwww's automatic file_suffix_binding */
2032: HTFile_doFileSuffixBinding (FALSE);
2033:
1.4 cvs 2034: /* Register the default set of transport protocols */
2035: HTTransportInit ();
2036:
2037: /* Register the default set of application protocol modules */
2038: AHTProtocolInit ();
2039:
1.116 cvs 2040: /* Register the default set of messages and dialog functions */
2041: AHTAlertInit ();
2042: HTAlert_setInteractive (YES);
2043:
2044: #ifdef AMAYA_WWW_CACHE
2045: /* Enable the persistent cache */
2046: CacheInit ();
2047: #else
2048: HTCacheMode_setEnabled (NO);
2049: #endif /* AMAYA_WWW_CACHE */
1.4 cvs 2050:
2051: /* Register the default set of BEFORE and AFTER filters */
2052: AHTNetInit ();
2053:
2054: /* Set up the default set of Authentication schemes */
1.167 cvs 2055: HTAA_newModule ("basic", HTBasic_generate, HTBasic_parse, NULL,
2056: HTBasic_delete);
1.158 cvs 2057: /* activate MDA by defaul */
1.203 cvs 2058: strptr = TtaGetEnvString ("ENABLE_MDA");
1.198 cvs 2059: if (!strptr || (strptr && *strptr && ustrcasecmp (strptr, TEXT("no"))))
1.158 cvs 2060: HTAA_newModule ("digest", HTDigest_generate, HTDigest_parse,
1.167 cvs 2061: HTDigest_updateInfo, HTDigest_delete);
1.4 cvs 2062:
1.97 cvs 2063: /* Get any proxy settings */
2064: ProxyInit ();
1.4 cvs 2065:
2066: /* Register the default set of converters */
2067: AHTConverterInit (converters);
1.151 cvs 2068: HTFormat_setConversion (converters);
1.27 cvs 2069: AHTAcceptTypesInit (acceptTypes);
1.193 cvs 2070: AHTAcceptLanguagesInit (acceptLanguages);
1.4 cvs 2071:
2072: /* Register the default set of transfer encoders and decoders */
1.151 cvs 2073: HTTransferEncoderInit (transfer_encodings);
1.190 cvs 2074: HTFormat_setTransferCoding (transfer_encodings);
2075: /* Register the default set of content encoders and decoders */
2076: HTContentEncoderInit (content_encodings);
2077: /* ignore all other encoding formats (or libwww will send them
1.181 cvs 2078: thru a blackhole otherwise */
2079: HTCoding_add (content_encodings, "*", NULL, HTIdentityCoding, 1.0);
1.151 cvs 2080: if (HTList_count(content_encodings) > 0)
2081: HTFormat_setContentCoding(content_encodings);
2082: else
2083: {
2084: HTList_delete(content_encodings);
2085: content_encodings = NULL;
2086: }
1.4 cvs 2087:
2088: /* Register the default set of MIME header parsers */
1.74 cvs 2089: HTMIMEInit (); /* must be called again for language selector */
1.4 cvs 2090:
2091: /* Register the default set of Icons for directory listings */
1.27 cvs 2092: /*HTIconInit(NULL); *//* experimental */
1.4 cvs 2093: }
2094:
1.5 cvs 2095: /*----------------------------------------------------------------------
1.17 cvs 2096: AHTProfile_delete
2097: deletes the Amaya client profile.
1.5 cvs 2098: ----------------------------------------------------------------------*/
1.4 cvs 2099: #ifdef __STDC__
2100: static void AHTProfile_delete (void)
2101: #else
2102: static void AHTProfile_delete ()
1.7 cvs 2103: #endif /* __STDC__ */
1.4 cvs 2104: {
1.22 cvs 2105:
2106: /* free the Amaya global context */
1.151 cvs 2107:
2108: /* Clean up all the registred converters */
2109: HTFormat_deleteAll ();
2110: if (acceptTypes)
1.74 cvs 2111: HTConversion_deleteAll (acceptTypes);
1.193 cvs 2112: if (acceptLanguages)
2113: HTLanguage_deleteAll (acceptLanguages);
1.151 cvs 2114:
1.74 cvs 2115: HTList_delete (Amaya->docid_status);
2116: HTList_delete (Amaya->reqlist);
2117: TtaFreeMemory (Amaya);
1.61 cvs 2118:
1.151 cvs 2119: if (HTLib_isInitialized ())
1.74 cvs 2120:
1.120 cvs 2121: #ifdef _WINDOWS
1.151 cvs 2122: HTEventTerminate ();
1.198 cvs 2123: #endif /* _WINDOWS; */
1.74 cvs 2124:
1.151 cvs 2125: /* Clean up the persistent cache (if any) */
1.116 cvs 2126: #ifdef AMAYA_WWW_CACHE
1.151 cvs 2127: clear_cachelock ();
2128: HTCacheTerminate ();
1.116 cvs 2129: #endif /* AMAYA_WWW_CACHE */
1.74 cvs 2130:
1.151 cvs 2131: /* Terminate libwww */
2132: HTLibTerminate ();
1.4 cvs 2133: }
2134:
1.5 cvs 2135: /*----------------------------------------------------------------------
1.116 cvs 2136: AmayacontextInit
2137: initializes an internal Amaya context for our libwww interface
2138: ----------------------------------------------------------------------*/
2139: #ifdef __STDC__
2140: static void AmayaContextInit ()
2141: #else
2142: static void AmayaContextInit ()
2143: #endif
2144:
2145: {
1.140 cvs 2146: AmayaAlive_flag = TRUE;
1.116 cvs 2147: /* Initialization of the global context */
2148: Amaya = (AmayaContext *) TtaGetMemory (sizeof (AmayaContext));
2149: Amaya->reqlist = HTList_new ();
2150: Amaya->docid_status = HTList_new ();
2151: Amaya->open_requests = 0;
2152: }
2153:
2154: /*----------------------------------------------------------------------
1.17 cvs 2155: QueryInit
2156: initializes the libwww interface
1.5 cvs 2157: ----------------------------------------------------------------------*/
1.4 cvs 2158: #ifdef __STDC__
2159: void QueryInit ()
2160: #else
2161: void QueryInit ()
2162: #endif
2163: {
1.198 cvs 2164: STRING strptr;
1.151 cvs 2165: int tmp_i;
2166: long tmp_l;
1.4 cvs 2167:
1.116 cvs 2168: AmayaContextInit ();
1.4 cvs 2169: AHTProfile_newAmaya (HTAppName, HTAppVersion);
1.140 cvs 2170: CanDoStop_set (TRUE);
1.4 cvs 2171:
1.116 cvs 2172: #ifdef _WINDOWS
1.125 cvs 2173: HTEventInit ();
1.116 cvs 2174: #endif /* _WINDOWS */
1.72 cvs 2175:
1.123 cvs 2176: #ifndef _WINDOWS
1.116 cvs 2177: HTEvent_setRegisterCallback ((void *) AHTEvent_register);
2178: HTEvent_setUnregisterCallback ((void *) AHTEvent_unregister);
1.202 cvs 2179: #ifndef _GTK
1.120 cvs 2180: HTTimer_registerSetTimerCallback ((void *) AMAYA_SetTimer);
2181: HTTimer_registerDeleteTimerCallback ((void *) AMAYA_DeleteTimer);
1.202 cvs 2182: #endif /* _GTK */
1.116 cvs 2183: #endif /* !_WINDOWS */
1.190 cvs 2184:
2185: /*** @@@@
1.176 cvs 2186: WWW_TraceFlag = 0;
1.190 cvs 2187: ***/
1.74 cvs 2188: #ifdef DEBUG_LIBWWW
1.116 cvs 2189: /* forwards error messages to our own function */
2190: WWW_TraceFlag = THD_TRACE;
1.138 cvs 2191: HTTrace_setCallback(LineTrace);
1.4 cvs 2192: /* Trace activation (for debugging) */
1.148 cvs 2193: /***
1.138 cvs 2194: WWW_TraceFlag = SHOW_CORE_TRACE | SHOW_THREAD_TRACE | SHOW_PROTOCOL_TRACE;
2195: WWW_TraceFlag |= 0xFFFFFFFFl;
2196: ***/
1.152 cvs 2197: #endif
2198:
1.148 cvs 2199: /* Setting up different network parameters */
1.151 cvs 2200:
1.148 cvs 2201: /* Maximum number of simultaneous open sockets */
1.203 cvs 2202: strptr = TtaGetEnvString ("MAX_SOCKET");
1.151 cvs 2203: if (strptr && *strptr)
1.198 cvs 2204: tmp_i = uctoi (strptr);
1.151 cvs 2205: else
2206: tmp_i = DEFAULT_MAX_SOCKET;
2207: HTNet_setMaxSocket (tmp_i);
2208:
1.148 cvs 2209: /* different network services timeouts */
1.151 cvs 2210: /* dns timeout */
1.203 cvs 2211: strptr = TtaGetEnvString ("DNS_TIMEOUT");
1.151 cvs 2212: if (strptr && *strptr)
1.198 cvs 2213: tmp_i = uctoi (strptr);
1.151 cvs 2214: else
2215: tmp_i = DEFAULT_DNS_TIMEOUT;
2216: HTDNS_setTimeout (tmp_i);
2217:
2218: /* persistent connections timeout */
1.203 cvs 2219: strptr = TtaGetEnvString ("PERSIST_CX_TIMEOUT");
1.151 cvs 2220: if (strptr && *strptr)
1.198 cvs 2221: tmp_l = uctol (strptr);
1.151 cvs 2222: else
2223: tmp_l = DEFAULT_PERSIST_TIMEOUT;
2224: HTHost_setPersistTimeout (tmp_l);
2225:
1.148 cvs 2226: /* default timeout in ms */
1.203 cvs 2227: strptr = TtaGetEnvString ("NET_EVENT_TIMEOUT");
1.151 cvs 2228: if (strptr && *strptr)
1.198 cvs 2229: tmp_i = uctoi (strptr);
1.151 cvs 2230: else
2231: tmp_i = DEFAULT_NET_EVENT_TIMEOUT;
2232: HTHost_setEventTimeout (tmp_i);
2233:
1.173 cvs 2234: HTRequest_setMaxRetry (8);
1.4 cvs 2235: #ifdef CATCH_SIG
1.148 cvs 2236: signal (SIGPIPE, SIG_IGN);
1.4 cvs 2237: #endif
1.15 cvs 2238: }
2239:
2240: /*----------------------------------------------------------------------
1.17 cvs 2241: LoopForStop
1.136 cvs 2242: a copy of the Thop event loop so we can handle the stop button in Unix
2243: and preemptive requests under Windows
1.15 cvs 2244: ----------------------------------------------------------------------*/
2245: #ifdef __STDC__
2246: static int LoopForStop (AHTReqContext * me)
2247: #else
2248: static int LoopForStop (AHTReqContext * me)
2249: #endif
2250: {
1.136 cvs 2251: #ifdef _WINDOWS
2252: MSG msg;
2253: unsigned long libwww_msg;
2254: HWND old_active_window, libwww_window;
2255: int status_req = HT_OK;
2256:
2257: old_active_window = GetActiveWindow ();
2258: libwww_window = HTEventList_getWinHandle (&libwww_msg);
1.137 cvs 2259:
1.149 cvs 2260: while (me->reqStatus != HT_END && me->reqStatus != HT_ERR
2261: && me->reqStatus != HT_ABORT && AmayaIsAlive () &&
2262: GetMessage (&msg, NULL, 0, 0))
2263: {
2264: if (msg.message != WM_QUIT)
2265: {
2266: TranslateMessage (&msg);
2267: DispatchMessage (&msg);
2268: }
2269: else
2270: break;
2271: }
1.136 cvs 2272: if (!AmayaIsAlive ())
2273: /* Amaya was killed by one of the callback handlers */
2274: exit (0);
2275: #else /* _WINDOWS */
1.25 cvs 2276: extern ThotAppContext app_cont;
1.51 cvs 2277: XEvent ev;
2278: XtInputMask status;
1.17 cvs 2279: int status_req = HT_OK;
1.15 cvs 2280:
2281: /* to test the async calls */
1.17 cvs 2282: /* Loop while waiting for new events, exists when the request is over */
1.15 cvs 2283: while (me->reqStatus != HT_ABORT &&
2284: me->reqStatus != HT_END &&
1.69 cvs 2285: me->reqStatus != HT_ERR) {
1.116 cvs 2286: if (!AmayaIsAlive ())
1.69 cvs 2287: /* Amaya was killed by one of the callback handlers */
2288: exit (0);
2289:
2290: status = XtAppPending (app_cont);
1.144 cvs 2291: if (status & XtIMXEvent)
2292: {
2293: XtAppNextEvent (app_cont, &ev);
2294: TtaHandleOneEvent (&ev);
2295: }
2296: else if (status != 0)
2297: XtAppProcessEvent (app_cont, XtIMAll);
1.69 cvs 2298: }
1.136 cvs 2299: #endif /* _WINDOWS */
1.69 cvs 2300: switch (me->reqStatus) {
2301: case HT_ERR:
2302: case HT_ABORT:
1.130 cvs 2303: status_req = NO;
1.15 cvs 2304: break;
2305:
1.69 cvs 2306: case HT_END:
1.130 cvs 2307: status_req = YES;
1.15 cvs 2308: break;
2309:
1.69 cvs 2310: default:
1.15 cvs 2311: break;
1.69 cvs 2312: }
1.15 cvs 2313: return (status_req);
1.4 cvs 2314: }
2315:
1.5 cvs 2316: /*----------------------------------------------------------------------
1.15 cvs 2317: QueryClose
1.21 cvs 2318: closes all existing threads, frees all non-automatically deallocated
2319: memory and then ends libwww.
1.5 cvs 2320: ----------------------------------------------------------------------*/
1.116 cvs 2321: void QueryClose ()
1.4 cvs 2322: {
1.24 cvs 2323:
1.140 cvs 2324: AmayaAlive_flag = FALSE;
1.24 cvs 2325:
1.116 cvs 2326: /* remove all the handlers and callbacks that may output a message to
2327: a non-existent Amaya window */
1.130 cvs 2328: #ifndef _WINDOWS
1.116 cvs 2329: HTNet_deleteAfter (AHTLoadTerminate_handler);
1.198 cvs 2330: #endif /* _WINDOWS */
1.116 cvs 2331: HTNet_deleteAfter (redirection_handler);
2332: HTAlertCall_deleteAll (HTAlert_global () );
2333: HTAlert_setGlobal ((HTList *) NULL);
2334: HTEvent_setRegisterCallback ((HTEvent_registerCallback *) NULL);
2335: HTEvent_setUnregisterCallback ((HTEvent_unregisterCallback *) NULL);
2336: #ifndef _WINDOWS
2337: /** need to erase all existing timers too **/
2338: HTTimer_registerSetTimerCallback (NULL);
2339: HTTimer_registerDeleteTimerCallback (NULL);
2340: #endif /* !_WINDOWS */
2341: HTHost_setActivateRequestCallback (NULL);
2342: Thread_deleteAll ();
1.21 cvs 2343:
1.116 cvs 2344: HTProxy_deleteAll ();
2345: HTNoProxy_deleteAll ();
2346: HTGateway_deleteAll ();
2347: AHTProfile_delete ();
2348: }
2349:
2350: /*----------------------------------------------------------------------
2351: NextNameValue
2352: ---------------------------------------------------------------------*/
2353: #ifdef __STDC__
2354: static char * NextNameValue (char ** pstr, char **name, char **value)
2355: #else
2356: static char * NextNameValue (pstr, name, value);
2357: char ** pstr;
2358: char **name;
2359: char **value;
2360: #endif /* __STDC__ */
2361: {
2362: char * p = *pstr;
2363: char * start = NULL;
2364: if (!pstr || !*pstr) return NULL;
2365:
2366: if (!*p) {
2367: *pstr = p;
2368: *name = NULL;
2369: *value = NULL;
2370: return NULL; /* No field */
2371: }
2372:
2373: /* Now search for the next '&' and ';' delimitators */
2374: start = p;
2375: while (*p && *p != '&' && *p != ';') p++;
2376: if (*p)
2377: *p++ = '\0';
2378: *pstr = p;
2379:
2380: /* Search for the name and value */
2381: *name = start;
2382: p = start;
2383:
2384: while(*p && *p != '=')
2385: p++;
2386: if (*p)
2387: *p++ = '\0';
2388: *value = p;
2389:
2390: return start;
2391: }
2392:
2393: /*----------------------------------------------------------------------
2394: PrepareFormdata
2395: ---------------------------------------------------------------------*/
2396: #ifdef __STDC__
1.198 cvs 2397: static HTAssocList * PrepareFormdata (STRING string)
1.116 cvs 2398: #else
2399: static HTAssocList * PrepareFormdata (string)
1.198 cvs 2400: STRING string;
1.116 cvs 2401: #endif /* __STDC__ */
2402: {
1.198 cvs 2403: char* tmp_string, *tmp_string_ptr;
2404: char* name;
2405: char* value;
2406: HTAssocList* formdata;
1.116 cvs 2407:
2408: if (!string)
2409: return NULL;
2410:
2411: /* store the ptr in another variable, as the original address will
2412: change
2413: */
2414:
1.198 cvs 2415: tmp_string_ptr = tmp_string = WideChar2ISO (TtaStrdup (string));
1.116 cvs 2416: formdata = HTAssocList_new();
2417:
2418: while (*tmp_string)
2419: {
2420: NextNameValue (&tmp_string, &name, &value);
2421: HTAssocList_addObject(formdata,
2422: name, value);
2423: }
2424:
2425: TtaFreeMemory (tmp_string_ptr);
2426: return formdata;
1.4 cvs 2427: }
2428:
1.99 cvs 2429:
2430: /*----------------------------------------------------------------------
2431: InvokeGetObjectWWW_callback
2432: A simple function to invoke a callback function whenever there's an error
2433: in GetObjectWWW
2434: ---------------------------------------------------------------------*/
2435:
1.116 cvs 2436: #ifdef __STDC__
1.198 cvs 2437: void InvokeGetObjectWWW_callback (int docid, STRING urlName, STRING outputfile, TTcbf *terminate_cbf, void *context_tcbf, int status)
1.99 cvs 2438: #else
1.111 cvs 2439: void InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf, context_tcbf, status)
1.99 cvs 2440: int docid;
1.198 cvs 2441: STRING urlName;
2442: STRING outputfile;
1.99 cvs 2443: TTcbf *terminate_cbf;
2444: void *context_tcbf;
1.116 cvs 2445: #endif /* __STDC__ */
1.99 cvs 2446: {
2447: if (!terminate_cbf)
2448: return;
2449:
1.116 cvs 2450: (*terminate_cbf) (docid, status, urlName, outputfile,
1.99 cvs 2451: NULL, context_tcbf);
2452: }
2453:
2454:
2455:
1.5 cvs 2456: /*----------------------------------------------------------------------
1.15 cvs 2457: GetObjectWWW
1.17 cvs 2458: this function requests a resource designated by a URLname into a
2459: temporary filename. The download can come from a simple GET operation,
2460: or can come from POSTING/GETTING a form. In the latter
2461: case, the function receives a query string to send to the server.
2462:
1.5 cvs 2463: 4 file retrieval modes are proposed:
2464: AMAYA_SYNC : blocking mode
2465: AMAYA_ISYNC : incremental, blocking mode
2466: AMAYA_ASYNC : non-blocking mode
2467: AMAYA_IASYNC : incremental, non-blocking mode
2468:
2469: In the incremental mode, each time a package arrives, it will be
2470: stored in the temporary file. In addition, if an
2471: incremental_callback function is defined, this function will be
2472: called and handled a copy of the newly received data package.
2473: Finally, if a terminate_callback function is defined, it will be
2474: invoked when the request terminates. The caller of this function
1.4 cvs 2475: can define two different contexts to be passed to the callback
2476: functions.
2477:
2478: When the function is called with the SYNC mode, the function will
2479: return only when the requested file has been loaded.
2480: The ASYNC mode will immediately return after setting up the
2481: call.
2482:
2483: Notes:
2484: At the end of a succesful request, the urlName string contains the
2485: name of the actually retrieved URL. As a URL can change over the time,
2486: (e.g., be redirected elsewhere), it is advised that the function
1.17 cvs 2487: caller verify the value of the urlName variable at the end of
1.4 cvs 2488: a request.
2489:
2490: Inputs:
2491: - docid Document identifier for the set of objects being
2492: retrieved.
2493: - urlName The URL to be retrieved (MAX_URL_LENGTH chars length)
2494: - outputfile A pointer to an empty string of MAX_URL_LENGTH.
2495: - mode The retrieval mode.
2496: - incremental_cbf
2497: - context_icbf
2498: Callback and context for the incremental modes
2499: - terminate_cbf
2500: - context_icbf
2501: Callback and context for a terminate handler
1.17 cvs 2502: -error_html if TRUE, then display any server error message as an
2503: HTML document.
1.88 cvs 2504: - content_type a string
2505:
1.4 cvs 2506: Outputs:
2507: - urlName The URL that was retrieved
2508: - outputfile The name of the temporary file which holds the
2509: retrieved data. (Only in case of success)
1.88 cvs 2510: - if content_type wasn't NULL, it will contain a copy of the parameter
2511: sent in the HTTP answer
1.4 cvs 2512: Returns:
2513: HT_ERROR
2514: HT_OK
1.5 cvs 2515:
2516: ----------------------------------------------------------------------*/
1.4 cvs 2517: #ifdef __STDC__
1.198 cvs 2518: int GetObjectWWW (int docid, STRING urlName, STRING formdata,
2519: STRING outputfile, int mode, TIcbf* incremental_cbf,
1.116 cvs 2520: void* context_icbf, TTcbf* terminate_cbf,
1.198 cvs 2521: void* context_tcbf, ThotBool error_html, STRING content_type)
1.4 cvs 2522: #else
1.127 cvs 2523: int GetObjectWWW (docid, urlName, formdata, outputfile, mode,
1.116 cvs 2524: incremental_cbf, context_icbf,
1.88 cvs 2525: terminate_cbf, context_tcbf, error_html, content_type)
1.73 cvs 2526: int docid;
1.198 cvs 2527: STRING urlName;
2528: STRING formdata;
2529: STRING outputfile;
1.73 cvs 2530: int mode;
2531: TIcbf *incremental_cbf;
2532: void *context_icbf;
2533: TTcbf *terminate_cbf;
2534: void *context_tcbf;
1.191 cvs 2535: ThotBool error_html;
1.198 cvs 2536: STRING content_type;
1.4 cvs 2537: #endif
2538: {
2539: AHTReqContext *me;
1.198 cvs 2540: STRING ref;
1.206 ! cvs 2541: STRING esc_url;
1.107 cvs 2542: int status, l;
1.114 cvs 2543: int tempsubdir;
1.191 cvs 2544: ThotBool bool_tmp;
1.7 cvs 2545:
1.116 cvs 2546: if (urlName == NULL || docid == 0 || outputfile == NULL)
2547: {
2548: /* no file to be loaded */
2549: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_BAD_URL), urlName);
1.69 cvs 2550:
1.116 cvs 2551: if (error_html)
1.69 cvs 2552: /* so we can show the error message */
2553: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.116 cvs 2554: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
2555: context_tcbf, HT_ERROR);
2556: return HT_ERROR;
2557: }
1.7 cvs 2558:
1.159 cvs 2559: /* if it's a 'docImage', we have already downloaded it */
1.198 cvs 2560: if (!ustrncmp (TEXT("internal:"), urlName, 9))
1.159 cvs 2561: {
1.198 cvs 2562: ustrcpy (outputfile, urlName);
1.159 cvs 2563: InvokeGetObjectWWW_callback (docid, urlName, outputfile,
2564: terminate_cbf, context_tcbf, HT_OK);
2565: return HT_OK;
2566: }
2567:
1.4 cvs 2568: /* do we support this protocol? */
1.116 cvs 2569: if (IsValidProtocol (urlName) == NO)
2570: {
2571: /* return error */
2572: outputfile[0] = EOS; /* file could not be opened */
2573: TtaSetStatus (docid, 1,
2574: TtaGetMessage (AMAYA, AM_GET_UNSUPPORTED_PROTOCOL),
2575: urlName);
2576:
2577: if (error_html)
1.69 cvs 2578: /* so we can show the error message */
2579: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.116 cvs 2580: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
2581: context_tcbf, HT_ERROR);
2582: return HT_ERROR;
2583: }
1.4 cvs 2584:
1.114 cvs 2585: /* we store CSS in subdir named 0; all the other files go to a subidr
2586: named after their own docid */
2587:
2588: tempsubdir = (mode & AMAYA_LOAD_CSS) ? 0 : docid;
2589:
1.116 cvs 2590: /* create a tempfilename */
1.198 cvs 2591: usprintf (outputfile, TEXT("%s%c%d%c%04dAM"), TempFileDirectory, DIR_SEP, tempsubdir, DIR_SEP, object_counter);
1.116 cvs 2592: /* update the object_counter (used for the tempfilename) */
1.4 cvs 2593: object_counter++;
1.116 cvs 2594:
1.4 cvs 2595: /* normalize the URL */
1.206 ! cvs 2596: esc_url = EscapeURL (urlName);
! 2597: if (esc_url)
! 2598: {
! 2599: ref = AmayaParseUrl (esc_url, _EMPTYSTR_, AMAYA_PARSE_ALL);
! 2600: TtaFreeMemory (esc_url);
! 2601: }
! 2602: else
! 2603: ref = NULL;
! 2604:
1.4 cvs 2605: /* should we abort the request if we could not normalize the url? */
1.198 cvs 2606: if (ref == NULL || ref[0] == EOS) {
1.69 cvs 2607: /*error */
2608: outputfile[0] = EOS;
2609: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_BAD_URL), urlName);
2610:
2611: if (error_html)
1.116 cvs 2612: /* so we can show the error message */
2613: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
1.99 cvs 2614: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
1.116 cvs 2615: context_tcbf, HT_ERROR);
1.69 cvs 2616: return HT_ERROR;
2617: }
1.116 cvs 2618:
1.4 cvs 2619: /* verify if that file name existed */
1.9 cvs 2620: if (TtaFileExist (outputfile))
1.77 cvs 2621: TtaFileUnlink (outputfile);
1.116 cvs 2622:
1.4 cvs 2623: /* Initialize the request structure */
2624: me = AHTReqContext_new (docid);
1.116 cvs 2625: if (me == NULL)
2626: {
2627: outputfile[0] = EOS;
2628: /* need an error message here */
2629: TtaFreeMemory (ref);
2630: InvokeGetObjectWWW_callback (docid, urlName, outputfile, terminate_cbf,
2631: context_tcbf, HT_ERROR);
2632: return HT_ERROR;
2633: }
2634:
1.4 cvs 2635: /* Specific initializations for POST and GET */
1.116 cvs 2636: if (mode & AMAYA_FORM_POST)
2637: {
2638: me->method = METHOD_POST;
2639: HTRequest_setMethod (me->request, METHOD_POST);
2640: }
2641: else
2642: {
2643: me->method = METHOD_GET;
2644: if (!HasKnownFileSuffix (ref))
2645: HTRequest_setConversion(me->request, acceptTypes, TRUE);
1.193 cvs 2646: HTRequest_setLanguage (me->request, acceptLanguages, TRUE);
1.116 cvs 2647: }
1.93 cvs 2648:
1.116 cvs 2649: /* Common initialization for all HTML methods */
1.4 cvs 2650: me->mode = mode;
2651: me->error_html = error_html;
2652: me->incremental_cbf = incremental_cbf;
2653: me->context_icbf = context_icbf;
2654: me->terminate_cbf = terminate_cbf;
2655: me->context_tcbf = context_tcbf;
1.64 cvs 2656:
1.69 cvs 2657: /* for the async. request modes, we need to have our
1.4 cvs 2658: own copy of outputfile and urlname
1.116 cvs 2659: */
1.4 cvs 2660:
1.116 cvs 2661: if ((mode & AMAYA_ASYNC) || (mode & AMAYA_IASYNC))
2662: {
1.198 cvs 2663: l = ustrlen (outputfile);
1.116 cvs 2664: if (l > MAX_LENGTH)
2665: me->outputfile = TtaGetMemory (l + 2);
2666: else
2667: me->outputfile = TtaGetMemory (MAX_LENGTH + 2);
1.198 cvs 2668: strcpy (me->outputfile, WideChar2ISO (outputfile));
2669: l = ustrlen (urlName);
1.116 cvs 2670: if (l > MAX_LENGTH)
2671: me->urlName = TtaGetMemory (l + 2);
2672: else
2673: me->urlName = TtaGetMemory (MAX_LENGTH + 2);
1.198 cvs 2674: strcpy (me->urlName, WideChar2ISO (urlName));
1.116 cvs 2675: #ifdef _WINDOWS
2676: /* force windows ASYNC requests to always be non preemptive */
2677: HTRequest_setPreemptive (me->request, NO);
2678: #endif /*_WINDOWS */
2679: } /* AMAYA_ASYNC mode */
2680: else
2681: #ifdef _WINDOWS
2682: {
1.198 cvs 2683: me->outputfile = WideChar2ISO (outputfile);
2684: me->urlName = WideChar2ISO (urlName);
1.116 cvs 2685: /* force windows SYNC requests to always be non preemptive */
2686: HTRequest_setPreemptive (me->request, YES);
2687: }
2688: #else /* !_WINDOWS */
2689: {
2690: me->outputfile = outputfile;
2691: me->urlName = urlName;
2692: }
2693: /***
1.136 cvs 2694: In order to take into account the stop button,
2695: the requests will be always asynchronous, however, if mode=AMAYA_SYNC,
1.57 cvs 2696: we will loop until the document has been received or a stop signal
2697: generated
1.77 cvs 2698: ****/
1.116 cvs 2699: HTRequest_setPreemptive (me->request, NO);
2700: #endif /* _WINDOWS */
1.61 cvs 2701:
1.151 cvs 2702: /*
2703: ** Make sure that the first request is flushed immediately and not
2704: ** buffered in the output buffer
2705: */
2706: if (mode & AMAYA_FLUSH_REQUEST)
2707: HTRequest_setFlush(me->request, YES);
2708: HTRequest_setFlush(me->request, YES);
2709:
1.61 cvs 2710: /* prepare the URLname that will be displayed in teh status bar */
2711: ChopURL (me->status_urlName, me->urlName);
1.77 cvs 2712: TtaSetStatus (me->docid, 1,
2713: TtaGetMessage (AMAYA, AM_FETCHING),
1.198 cvs 2714: ISO2WideChar (me->status_urlName));
1.4 cvs 2715:
1.198 cvs 2716: me->anchor = (HTParentAnchor *) HTAnchor_findAddress (WideChar2ISO (ref));
1.45 cvs 2717: TtaFreeMemory (ref);
1.177 cvs 2718:
1.198 cvs 2719: TtaGetEnvBoolean (TEXT("CACHE_DISCONNECTED_MODE"), &bool_tmp);
1.177 cvs 2720: if (!bool_tmp && (mode & AMAYA_NOCACHE))
1.116 cvs 2721: HTRequest_setReloadMode (me->request, HT_CACHE_FLUSH);
2722:
2723: /* prepare the query string and format for POST */
2724: if (mode & AMAYA_FORM_POST)
1.114 cvs 2725: {
1.116 cvs 2726: HTAnchor_setFormat ((HTParentAnchor *) me->anchor,
2727: HTAtom_for ("application/x-www-form-urlencoded"));
2728: HTAnchor_setLength ((HTParentAnchor *) me->anchor, me->block_size);
2729: HTRequest_setEntityAnchor (me->request, me->anchor);
2730: }
1.114 cvs 2731:
1.127 cvs 2732: /* create the formdata element for libwww */
2733: if (formdata)
2734: me->formdata = PrepareFormdata (formdata);
2735:
1.116 cvs 2736: /* do the request */
2737: if (mode & AMAYA_FORM_POST)
1.119 cvs 2738: {
1.191 cvs 2739: /* this call doesn't give back a ThotBool */
1.119 cvs 2740: HTParentAnchor * posted = NULL;
2741:
2742: posted = HTPostFormAnchor (me->formdata, (HTAnchor *) me->anchor,
2743: me->request);
2744: status = posted ? YES : NO;
2745: }
1.127 cvs 2746: else if (formdata)
2747: status = HTGetFormAnchor(me->formdata, (HTAnchor *) me->anchor,
2748: me->request);
1.116 cvs 2749: else
1.77 cvs 2750: status = HTLoadAnchor ((HTAnchor *) me->anchor, me->request);
1.69 cvs 2751:
1.123 cvs 2752: /* @@@ may need some special windows error msg here */
1.116 cvs 2753: /* control the errors */
1.4 cvs 2754:
1.130 cvs 2755: if (status == NO)
1.116 cvs 2756: /* the request invocation failed */
2757: {
2758: /* show an error message on the status bar */
2759: DocNetworkStatus[docid] |= AMAYA_NET_ERROR;
2760: TtaSetStatus (docid, 1,
2761: TtaGetMessage (AMAYA, AM_CANNOT_LOAD),
2762: urlName);
2763: if (me->reqStatus == HT_NEW)
2764: /* manually invoke the last processing that usually gets done
2765: in a succesful request */
2766: InvokeGetObjectWWW_callback (docid, urlName, outputfile,
2767: terminate_cbf, context_tcbf, HT_ERROR);
2768: /* terminate_handler wasn't called */
1.136 cvs 2769: AHTReqContext_delete (me);
1.116 cvs 2770: }
2771: else
1.136 cvs 2772: /* end treatment for SYNC requests */
1.120 cvs 2773: if ((mode & AMAYA_SYNC) || (mode & AMAYA_ISYNC))
2774: {
1.136 cvs 2775: /* wait here untilt the asynchronous request finishes */
1.130 cvs 2776: status = LoopForStop (me);
1.136 cvs 2777: /* if status returns HT_ERROR, should we invoke the callback? */
1.120 cvs 2778: if (!HTRequest_kill (me->request))
2779: AHTReqContext_delete (me);
2780: }
1.130 cvs 2781:
1.136 cvs 2782: /* an interface problem!!! */
2783: return (status == YES ? 0 : -1);
1.4 cvs 2784: }
2785:
1.5 cvs 2786: /*----------------------------------------------------------------------
1.17 cvs 2787: PutObjectWWW
2788: frontend for uploading a resource to a URL. This function downloads
2789: a file to be uploaded into memory, it then calls UploadMemWWW to
2790: finish the job.
2791:
1.5 cvs 2792: 2 upload modes are proposed:
2793: AMAYA_SYNC : blocking mode
2794: AMAYA_ASYNC : non-blocking mode
2795:
1.4 cvs 2796: When the function is called with the SYNC mode, the function will
2797: return only when the file has been uploaded.
2798: The ASYNC mode will immediately return after setting up the
2799: call. Furthermore, at the end of an upload, the ASYNC mode will
2800: call back terminate_cbf, handling it the context defined in
2801: context_tcbf.
2802:
2803: Notes:
2804: At the end of a succesful request, the urlName string contains the
2805: name of the actually uploaded URL. As a URL can change over the time,
2806: (e.g., be redirected elsewhere), it is advised that the function
2807: caller verifies the value of the urlName variable at the end of
2808: a request.
2809:
2810: Inputs:
2811: - docid Document identifier for the set of objects being
2812: retrieved.
2813: - fileName A pointer to the local file to upload
2814: - urlName The URL to be uploaded (MAX_URL_LENGTH chars length)
2815: - mode The retrieval mode.
2816: - terminate_cbf
2817: - context_icbf
2818: Callback and context for a terminate handler
2819:
2820: Outputs:
2821: - urlName The URL that was uploaded
2822:
2823: Returns:
2824: HT_ERROR
2825: HT_OK
1.5 cvs 2826: ----------------------------------------------------------------------*/
1.4 cvs 2827: #ifdef __STDC__
1.198 cvs 2828: int PutObjectWWW (int docid, STRING fileName, STRING urlName, int mode, PicType contentType,
1.4 cvs 2829: TTcbf * terminate_cbf, void *context_tcbf)
2830: #else
1.26 cvs 2831: int PutObjectWWW (docid, urlName, fileName, mode, contentType,
1.4 cvs 2832: ,terminate_cbf, context_tcbf)
2833: int docid;
1.198 cvs 2834: STRING urlName;
2835: STRING fileName;
1.4 cvs 2836: int mode;
1.27 cvs 2837: PicType contentType;
1.4 cvs 2838: TTcbf *terminate_cbf;
2839: void *context_tcbf;
2840:
1.116 cvs 2841: #endif /* __STDC__ */
1.4 cvs 2842: {
1.116 cvs 2843: AHTReqContext *me;
1.4 cvs 2844: int status;
2845: int fd;
2846: struct stat file_stat;
1.116 cvs 2847: char *fileURL;
1.168 cvs 2848: char *etag = NULL;
1.169 cvs 2849: HTParentAnchor *dest_anc_parent;
1.198 cvs 2850: STRING tmp;
1.206 ! cvs 2851: STRING esc_url;
1.168 cvs 2852: int UsePreconditions;
1.191 cvs 2853: ThotBool lost_update_check = TRUE;
1.172 cvs 2854:
2855: /* should we protect the PUT against lost updates? */
1.203 cvs 2856: tmp = TtaGetEnvString ("ENABLE_LOST_UPDATE_CHECK");
1.198 cvs 2857: if (tmp && *tmp && ustrcasecmp (tmp, TEXT("yes")))
1.172 cvs 2858: lost_update_check = FALSE;
1.168 cvs 2859:
2860: UsePreconditions = mode & AMAYA_USE_PRECONDITIONS;
1.4 cvs 2861:
1.33 cvs 2862: AmayaLastHTTPErrorMsg [0] = EOS;
2863:
1.116 cvs 2864: if (urlName == NULL || docid == 0 || fileName == NULL
2865: || !TtaFileExist (fileName))
1.4 cvs 2866: /* no file to be uploaded */
2867: return HT_ERROR;
2868:
2869: /* do we support this protocol? */
1.7 cvs 2870: if (IsValidProtocol (urlName) == NO)
2871: {
2872: /* return error */
1.198 cvs 2873: TtaSetStatus (docid, 1, TtaGetMessage (AMAYA, AM_PUT_UNSUPPORTED_PROTOCOL), urlName);
1.7 cvs 2874: return HT_ERROR;
2875: }
1.116 cvs 2876:
2877: /* verify the file's size */
2878: #ifndef _WINDOWS
1.7 cvs 2879: if ((fd = open (fileName, O_RDONLY)) == -1)
1.116 cvs 2880: #else
1.198 cvs 2881: if ((fd = uopen (fileName, _O_RDONLY | _O_BINARY)) == -1)
1.116 cvs 2882: #endif /* _WINDOWS */
1.7 cvs 2883: {
2884: /* if we could not open the file, exit */
2885: /*error msg here */
2886: return (HT_ERROR);
2887: }
1.4 cvs 2888:
2889: fstat (fd, &file_stat);
1.137 cvs 2890: # ifdef _WINDOWS
2891: _close (fd);
2892: # else /* _WINDOWS */
1.116 cvs 2893: close (fd);
1.137 cvs 2894: # endif /* _WINDOWS */
1.4 cvs 2895:
1.7 cvs 2896: if (file_stat.st_size == 0)
2897: {
2898: /* file was empty */
2899: /*errmsg here */
2900: return (HT_ERROR);
2901: }
1.116 cvs 2902:
2903: /* prepare the request context */
1.4 cvs 2904: if (THD_TRACE)
1.116 cvs 2905: fprintf (stderr, "file size == %u\n", (unsigned) file_stat.st_size);
1.4 cvs 2906:
2907: me = AHTReqContext_new (docid);
1.7 cvs 2908: if (me == NULL)
2909: {
1.168 cvs 2910: /* @@ need an error message here */
1.151 cvs 2911: TtaHandlePendingEvents ();
1.7 cvs 2912: return (HT_ERROR);
2913: }
1.116 cvs 2914:
1.4 cvs 2915: me->mode = mode;
2916: me->incremental_cbf = (TIcbf *) NULL;
2917: me->context_icbf = (void *) NULL;
2918: me->terminate_cbf = terminate_cbf;
2919: me->context_tcbf = context_tcbf;
1.206 ! cvs 2920: esc_url = EscapeURL (urlName);
! 2921: me->urlName = TtaStrdup (WideChar2ISO (esc_url));
! 2922: TtaFreeMemory (esc_url);
1.116 cvs 2923: me->block_size = file_stat.st_size;
1.17 cvs 2924: /* select the parameters that distinguish a PUT from a GET/POST */
1.4 cvs 2925: me->method = METHOD_PUT;
2926: me->output = stdout;
1.17 cvs 2927: /* we are not expecting to receive any input from the server */
2928: me->outputfile = (char *) NULL;
1.4 cvs 2929:
1.134 cvs 2930: #ifdef _WINDOWS
2931: /* libwww's HTParse function doesn't take into account the drive name;
1.168 cvs 2932: so we sidestep it */
1.134 cvs 2933: fileURL = NULL;
2934: StrAllocCopy (fileURL, "file:");
1.198 cvs 2935: StrAllocCat (fileURL, WideChar2ISO (fileName));
1.134 cvs 2936: #else
1.116 cvs 2937: fileURL = HTParse (fileName, "file:/", PARSE_ALL);
1.134 cvs 2938: #endif /* _WINDOWS */
1.168 cvs 2939: me->source = HTAnchor_findAddress (fileURL);
1.116 cvs 2940: HT_FREE (fileURL);
1.206 ! cvs 2941: me->dest = HTAnchor_findAddress (me->urlName);
1.169 cvs 2942: /* we memorize the anchor's parent @ as we use it a number of times
2943: in the following lines */
2944: dest_anc_parent = HTAnchor_parent (me->dest);
1.168 cvs 2945:
1.169 cvs 2946: /*
2947: ** Set the Content-Type of the file we are uploading
2948: */
2949: /* we try to use any content-type previosuly associated
2950: with the parent. If it doesn't exist, we try to guess it
2951: from the URL */
1.198 cvs 2952: tmp = ISO2WideChar (HTAtom_name (HTAnchor_format (dest_anc_parent)));
2953: if (!tmp || !ustrcmp (tmp, TEXT("www/unknown")))
1.169 cvs 2954: {
1.198 cvs 2955: HTAnchor_setFormat (dest_anc_parent, AHTGuessAtom_for (ISO2WideChar (me->urlName), contentType));
2956: tmp = ISO2WideChar (HTAtom_name (HTAnchor_format (dest_anc_parent)));
1.169 cvs 2957: }
2958: /* .. and we give the same type to the source anchor */
2959: /* we go thru setOutputFormat, rather than change the parent's
2960: anchor, as that's the place that libwww expects it to be */
2961:
1.170 cvs 2962: HTAnchor_setFormat (HTAnchor_parent (me->source),
1.198 cvs 2963: HTAtom_for (WideChar2ISO (tmp)));
1.169 cvs 2964: HTRequest_setOutputFormat (me->request,
1.198 cvs 2965: HTAtom_for (WideChar2ISO (tmp)));
1.134 cvs 2966: /* define other request characteristics */
1.116 cvs 2967: #ifdef _WINDOWS
1.136 cvs 2968: HTRequest_setPreemptive (me->request, NO);
1.116 cvs 2969: #else
1.134 cvs 2970: HTRequest_setPreemptive (me->request, NO);
1.116 cvs 2971: #endif /* _WINDOWS */
2972:
1.151 cvs 2973: /*
2974: ** Make sure that the first request is flushed immediately and not
2975: ** buffered in the output buffer
2976: */
2977: if (mode & AMAYA_FLUSH_REQUEST)
2978: HTRequest_setFlush(me->request, YES);
1.168 cvs 2979:
2980: /* Should we use preconditions? */
1.172 cvs 2981: if (lost_update_check)
1.168 cvs 2982: {
1.172 cvs 2983: if (UsePreconditions)
2984: etag = HTAnchor_etag (HTAnchor_parent (me->dest));
2985:
2986: if (etag)
2987: {
2988: HTRequest_setPreconditions(me->request, HT_MATCH_THIS);
2989: }
2990: else
2991: {
2992: HTRequest_setPreconditions(me->request, HT_NO_MATCH);
2993: HTRequest_addAfter(me->request, check_handler, NULL, NULL, HT_ALL,
2994: HT_FILTER_MIDDLE, YES);
1.175 cvs 2995: HTRequest_addAfter (me->request, HTAuthFilter, "http://*", NULL,
2996: HT_NO_ACCESS, HT_FILTER_MIDDLE, YES);
2997: HTRequest_addAfter (me->request, HTAuthFilter, "http://*", NULL,
2998: HT_REAUTH, HT_FILTER_MIDDLE, YES);
2999: HTRequest_addAfter (me->request, HTAuthInfoFilter, "http://*", NULL,
3000: HT_ALL, HT_FILTER_MIDDLE, YES);
3001: HTRequest_addAfter (me->request, HTUseProxyFilter, "http://*", NULL,
3002: HT_USE_PROXY, HT_FILTER_MIDDLE, YES);
1.172 cvs 3003: }
1.168 cvs 3004: }
3005: else
3006: {
1.172 cvs 3007: /* don't use preconditions */
1.168 cvs 3008: HTRequest_setPreconditions(me->request, HT_NO_MATCH);
3009: }
1.151 cvs 3010:
1.136 cvs 3011: /* don't use the cache while saving a document */
3012: HTRequest_setReloadMode (me->request, HT_CACHE_FLUSH);
1.116 cvs 3013:
1.164 cvs 3014: /* Throw away any reponse body */
3015: /*
3016: HTRequest_setOutputStream (me->request, HTBlackHole());
3017: */
3018:
1.168 cvs 3019: /* prepare the URLname that will be displayed in the status bar */
1.74 cvs 3020: ChopURL (me->status_urlName, me->urlName);
1.198 cvs 3021: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_REMOTE_SAVING), ISO2WideChar (me->status_urlName));
1.114 cvs 3022:
1.164 cvs 3023: /* make the request */
1.172 cvs 3024: if (lost_update_check && (!UsePreconditions || !etag))
1.168 cvs 3025: status = HTHeadAnchor (me->dest, me->request);
3026: else
3027: status = HTPutDocumentAnchor (HTAnchor_parent (me->source), me->dest, me->request);
1.4 cvs 3028:
1.130 cvs 3029: if (status == YES && me->reqStatus != HT_ERR)
1.7 cvs 3030: {
1.168 cvs 3031: /* part of the stop button handler */
3032: if ((mode & AMAYA_SYNC) || (mode & AMAYA_ISYNC))
3033: status = LoopForStop (me);
1.15 cvs 3034: }
1.136 cvs 3035: if (!HTRequest_kill (me->request))
3036: AHTReqContext_delete (me);
1.168 cvs 3037:
1.116 cvs 3038: TtaHandlePendingEvents ();
1.90 cvs 3039:
1.130 cvs 3040: return (status == YES ? 0 : -1);
1.28 cvs 3041: }
1.4 cvs 3042:
1.5 cvs 3043: /*----------------------------------------------------------------------
1.138 cvs 3044: StopRequest
1.17 cvs 3045: stops (kills) all active requests associated with a docid
1.5 cvs 3046: ----------------------------------------------------------------------*/
1.4 cvs 3047: #ifdef __STDC__
3048: void StopRequest (int docid)
3049: #else
3050: void StopRequest (docid)
3051: int docid;
3052: #endif
3053: {
1.140 cvs 3054: if (Amaya && CanDoStop ())
1.138 cvs 3055: {
1.139 cvs 3056: #if 0 /* for later */
1.140 cvs 3057: AHTDocId_Status *docid_status;
3058: /* verify if there are any requests at all associated with docid */
1.138 cvs 3059: docid_status = (AHTDocId_Status *) GetDocIdStatus (docid,
3060: Amaya->docid_status);
3061: if (docid_status == (AHTDocId_Status *) NULL)
3062: return;
1.139 cvs 3063: #endif /* 0 */
1.138 cvs 3064: /* temporary call to stop all requests, as libwww changed its API */
3065: StopAllRequests (docid);
3066: }
3067: }
3068:
1.190 cvs 3069: /* @@@ the docid parameter isn't used... clean it up */
1.138 cvs 3070: /*----------------------------------------------------------------------
3071: StopAllRequests
3072: stops (kills) all active requests. We use the docid
3073: ----------------------------------------------------------------------*/
3074: #ifdef __STDC__
3075: void StopAllRequests (int docid)
3076: #else
1.140 cvs 3077: void StopAllRequests (docid)
1.138 cvs 3078: int docid;
3079: #endif
3080: {
1.4 cvs 3081: HTList *cur;
3082: AHTReqContext *me;
1.191 cvs 3083: static ThotBool lock_stop = 0;
3084: ThotBool async_flag;
1.116 cvs 3085:
1.138 cvs 3086: /* only do the stop if we're not being called while processing a
1.146 cvs 3087: request, and if we're not already dealing with a stop */
3088: if (Amaya && CanDoStop () && !lock_stop)
1.7 cvs 3089: {
1.100 cvs 3090: #ifdef DEBUG_LIBWWW
1.138 cvs 3091: fprintf (stderr, "StopRequest: number of Amaya requests "
3092: "before kill: %d\n", Amaya->open_requests);
1.100 cvs 3093: #endif /* DEBUG_LIBWWW */
1.150 cvs 3094: /* enter the critical section */
1.146 cvs 3095: lock_stop = TRUE;
1.164 cvs 3096: /* expire all outstanding timers */
3097: HTTimer_expireAll ();
1.160 cvs 3098: /* HTNet_killAll (); */
1.116 cvs 3099: cur = Amaya->reqlist;
3100: while ((me = (AHTReqContext *) HTList_nextObject (cur)))
3101: {
1.140 cvs 3102: if (AmayaIsAlive ())
1.160 cvs 3103: {
1.161 cvs 3104: #ifdef DEBUG_LIBWWW
1.163 cvs 3105: fprintf (stderr,"StopRequest: killing req %p, url %s, status %d\n", me, me->urlName, me->reqStatus);
1.161 cvs 3106: #endif /* DEBUG_LIBWWW */
3107:
1.165 cvs 3108: if (me->reqStatus != HT_END && me->reqStatus != HT_ABORT)
1.163 cvs 3109: {
3110: if ((me->mode & AMAYA_ASYNC)
3111: || (me->mode & AMAYA_IASYNC))
3112: async_flag = TRUE;
3113: else
3114: async_flag = FALSE;
3115:
1.165 cvs 3116: /* change the status to say that the request aborted */
3117: me->reqStatus = HT_ABORT;
3118:
1.163 cvs 3119: /* kill the request, using the appropriate function */
3120: if (me->request->net)
3121: HTNet_killPipe (me->request->net);
3122: else
3123: {
1.160 cvs 3124: if (me->terminate_cbf)
1.198 cvs 3125: (*me->terminate_cbf) (me->docid, -1, ISO2WideChar (me->urlName),
3126: ISO2WideChar (me->outputfile),
3127: ISO2WideChar (me->content_type),
1.160 cvs 3128: me->context_tcbf);
1.164 cvs 3129:
3130: if (async_flag)
1.165 cvs 3131: /* explicitly free the request context for async
3132: requests. The sync requests context is freed by LoopForStop */
1.164 cvs 3133: AHTReqContext_delete (me);
1.160 cvs 3134: }
1.163 cvs 3135: cur = Amaya->reqlist;
3136: }
1.142 cvs 3137: #ifndef _WINDOWS
3138: #ifdef WWW_XWINDOWS
1.140 cvs 3139: /* to be on the safe side, remove all outstanding X events */
1.160 cvs 3140: else
3141: RequestKillAllXtevents (me);
1.142 cvs 3142: #endif /* WWW_XWINDOWS */
3143: #endif /* !_WINDOWS */
1.160 cvs 3144: }
1.116 cvs 3145: }
1.150 cvs 3146: /* Delete remaining channels */
3147: HTChannel_safeDeleteAll ();
3148: /* exit the critical section */
1.148 cvs 3149: lock_stop = FALSE;
1.100 cvs 3150: #ifdef DEBUG_LIBWWW
1.138 cvs 3151: fprintf (stderr, "StopRequest: number of Amaya requests "
3152: "after kill: %d\n", Amaya->open_requests);
1.100 cvs 3153: #endif /* DEBUG_LIBWWW */
1.138 cvs 3154: }
3155: } /* StopAllRequests */
1.17 cvs 3156:
3157:
1.105 cvs 3158: /*----------------------------------------------------------------------
3159: AmayaIsAlive
1.140 cvs 3160: returns the value of the AmayaAlive_flag
1.105 cvs 3161: ----------------------------------------------------------------------*/
3162: #ifdef __STDC__
1.191 cvs 3163: ThotBool AmayaIsAlive (void)
1.105 cvs 3164: #else
1.191 cvs 3165: ThotBool AmayaIsAlive ()
1.105 cvs 3166: #endif /* _STDC_ */
3167: {
1.140 cvs 3168: return AmayaAlive_flag;
3169: }
3170:
3171: /*----------------------------------------------------------------------
3172: CanDoStop
3173: returns the value of the CanDoStop flag
3174: ----------------------------------------------------------------------*/
3175: #ifdef __STDC__
1.191 cvs 3176: ThotBool CanDoStop (void)
1.140 cvs 3177: #else
1.191 cvs 3178: ThotBool CanDoStop ()
1.140 cvs 3179: #endif /* _STDC_ */
3180: {
3181: return CanDoStop_flag;
3182: }
3183:
3184: /*----------------------------------------------------------------------
3185: CanDoStop_set
3186: sets the value of the CanDoStop flag
3187: ----------------------------------------------------------------------*/
3188: #ifdef __STDC__
1.191 cvs 3189: void CanDoStop_set (ThotBool value)
1.140 cvs 3190: #else
3191: void CanDoStop (value)
1.191 cvs 3192: ThotBool value;
1.140 cvs 3193: #endif /* _STDC_ */
3194: {
3195: CanDoStop_flag = value;
1.176 cvs 3196: }
3197:
3198: #ifdef __STDC__
3199: void libwww_updateNetworkConf (int status)
3200: #else
3201: void libwww_updateNetworkConf (status)
3202: int status;
3203: #endif /*__STDC__*/
3204: {
3205: /* @@@ the docid parameter isn't used... clean it up */
3206: int docid = 1;
3207:
3208: /* first, stop all current requests, as the network
3209: may make some changes */
3210: StopAllRequests (docid);
3211:
3212: if (status & AMAYA_PROXY_RESTART)
3213: {
3214: HTProxy_deleteAll ();
3215: ProxyInit ();
3216: }
3217:
3218: if (status & AMAYA_CACHE_RESTART)
3219: {
3220: clear_cachelock ();
3221: HTCacheTerminate ();
3222: HTCacheMode_setEnabled (NO);
3223: CacheInit ();
3224: }
1.193 cvs 3225:
3226: if (status & AMAYA_LANNEG_RESTART)
3227: {
3228: /* clear the current values */
3229: if (acceptLanguages)
3230: HTLanguage_deleteAll (acceptLanguages);
3231: /* read in the new ones */
3232: acceptLanguages = HTList_new ();
3233: AHTAcceptLanguagesInit (acceptLanguages);
3234: }
1.105 cvs 3235: }
1.116 cvs 3236:
1.69 cvs 3237: #endif /* AMAYA_JAVA */
1.77 cvs 3238:
1.116 cvs 3239: /*
3240: end of Module query.c
3241: */
Webmaster
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to query.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Public] / Amaya / amaya