Annotation of Amaya/amaya/AHTURLTools.c, revision 1.84
1.7 cvs 1: /*
2: *
3: * (c) COPYRIGHT MIT and INRIA, 1996.
4: * Please first read the full copyright statement in file COPYRIGHT.
5: *
6: */
1.9 cvs 7:
1.10 cvs 8: /*
9: * AHTURLTools.c: contains all the functions for testing, manipulating,
1.25 cvs 10: * and normalizing URLs. It also contains a local copy of the libWWW
11: * URL parsing functions.
1.10 cvs 12: *
13: * Authors: J. Kahan, I. Vatton
1.45 cvs 14: * R. Guetari (Stuff related to Windows).
1.10 cvs 15: *
16: */
1.7 cvs 17:
1.15 cvs 18: #define THOT_EXPORT extern
1.3 cvs 19: #include "amaya.h"
20:
1.8 cvs 21: #include "init_f.h"
22: #include "AHTURLTools_f.h"
23:
1.24 cvs 24: #define MAX_PRINT_URL_LENGTH 50
1.29 cvs 25: typedef struct _HTURI {
1.67 cvs 26: STRING access; /* Now known as "scheme" */
27: STRING host;
28: STRING absolute;
29: STRING relative;
30: STRING fragment;
1.29 cvs 31: } HTURI;
1.24 cvs 32:
1.28 cvs 33:
34: /*----------------------------------------------------------------------
35: ConvertToLowerCase
36: Converts a string to lowercase.
37: ----------------------------------------------------------------------*/
1.22 cvs 38: #ifdef __STDC__
1.67 cvs 39: void ConvertToLowerCase (STRING string)
1.28 cvs 40: #else /* __STDC__ */
1.38 cvs 41: void ConvertToLowerCase (string)
1.67 cvs 42: STRING string;
1.28 cvs 43:
44: #endif /* __STDC__ */
45: {
46: int i;
47:
48: if (!string)
49: return;
50:
51: for (i = 0; string[i] != EOS; i++)
1.67 cvs 52: string[i] = utolower (string[i]);
1.28 cvs 53: }
1.22 cvs 54:
1.8 cvs 55: /*----------------------------------------------------------------------
1.75 cvs 56: EscapeChar
57: writes the equivalent escape code of a char in a string
58: ----------------------------------------------------------------------*/
59: #ifdef __STDC__
60: void EscapeChar (STRING string, UCHAR_T c)
61: #else
62: void EscapeChar (string, c)
63: STRING string;
64: UCHAR_T c;
65:
66: #endif
67: {
68: c &= 0xFF; /* strange behavior under solaris? */
69: usprintf (string, TEXT("%02x"), (unsigned int) c);
70: }
71:
72: /*----------------------------------------------------------------------
73: EscapeURL
74: Takes a URL and escapes all protected chars into
75: %xx sequences. Also, removes any leading white spaces
76: Returns either NULL or a new buffer, which must be freed by the caller
77: ----------------------------------------------------------------------*/
78: #ifdef __STDC__
79: STRING EscapeURL (const STRING url)
80: #else
81: STRING EscapeURL (url)
82: STRING url;
83: #endif /* __STDC__ */
84: {
85: STRING buffer;
86: int buffer_len;
87: int buffer_free_mem;
88: PCHAR_T ptr;
89: int new_chars;
90: void *status;
91:
92: if (url && *url)
93: {
1.76 cvs 94: buffer_free_mem = ustrlen (url) + 20;
95: buffer = TtaAllocString (buffer_free_mem + 1);
1.75 cvs 96: ptr = url;
97: buffer_len = 0;
98:
99: while (*ptr)
100: {
101: switch (*ptr)
102: {
103: /* put here below all the chars that need to
104: be escaped into %xx */
1.81 cvs 105: case 0x27: /* & */
106: case 0x20: /* space */
1.75 cvs 107: new_chars = 3;
108: break;
109:
110: default:
111: new_chars = 1;
112: break;
113: }
114:
115: /* see if we need extra room in the buffer */
116: if (new_chars > buffer_free_mem)
117: {
1.76 cvs 118: buffer_free_mem = 20;
1.75 cvs 119: status = TtaRealloc (buffer, sizeof (CHAR_T)
120: * (buffer_len + buffer_free_mem + 1));
121: if (status)
122: buffer = (STRING) status;
123: else {
124: /* @@ maybe we should do some other behavior here, like
125: freeing the buffer and return a void thing */
1.76 cvs 126: buffer[buffer_len] = EOS;
1.75 cvs 127: break;
128: }
129: }
130: /* escape the char */
131: if (new_chars == 3)
132: {
133: buffer[buffer_len] = TEXT('%');
134: EscapeChar (&buffer[buffer_len+1], *ptr);
135: }
136: else
137: buffer[buffer_len] = *ptr;
138:
139: /* update the status */
140: buffer_len += new_chars;
141: buffer_free_mem -= new_chars;
142: /* examine the next char */
143: ptr++;
144: }
145: buffer[buffer_len] = EOS;
146: }
1.76 cvs 147: else
148: buffer = NULL;
149:
1.75 cvs 150: return (buffer);
151: }
152:
153:
154: /*----------------------------------------------------------------------
1.11 cvs 155: ExplodeURL
1.8 cvs 156: ----------------------------------------------------------------------*/
157: #ifdef __STDC__
158: void ExplodeURL (char *url, char **proto, char **host, char **dir, char **file)
159: #else
160: void ExplodeURL (url, proto, host, dir, file)
161: char *url;
162: char **proto;
163: char **host;
164: char **dir;
165: char **file;
166:
167: #endif
168: {
1.33 cvs 169: char *curr, *temp;
170: char used_sep;
1.32 cvs 171:
1.33 cvs 172: if (url && strchr (url, URL_SEP))
173: used_sep = URL_SEP;
174: else
175: used_sep = DIR_SEP;
1.8 cvs 176:
177: if ((url == NULL) || (proto == NULL) || (host == NULL) ||
178: (dir == NULL) || (file == NULL))
179: return;
180:
181: /* initialize every pointer */
182: *proto = *host = *dir = *file = NULL;
183:
184: /* skip any leading space */
185: while ((*url == SPACE) || (*url == TAB))
186: url++;
1.9 cvs 187: curr = url;
188: if (*curr == 0)
1.8 cvs 189: goto finished;
190:
191: /* go to the end of the URL */
1.68 cvs 192: while ((*curr != EOS) && (*curr != SPACE) && (*curr != BSPACE) &&
193: (*curr != __CR__) && (*curr != EOL))
1.9 cvs 194: curr++;
1.8 cvs 195:
196: /* mark the end of the chain */
1.9 cvs 197: *curr = EOS;
198: curr--;
199: if (curr <= url)
1.8 cvs 200: goto finished;
201:
202: /* search the next DIR_SEP indicating the beginning of the file name */
203: do
1.11 cvs 204: curr--;
1.33 cvs 205: while ((curr >= url) && (*curr != used_sep));
1.11 cvs 206:
1.9 cvs 207: if (curr < url)
1.8 cvs 208: goto finished;
1.9 cvs 209: *file = curr + 1;
1.8 cvs 210:
211: /* mark the end of the dir */
1.9 cvs 212: *curr = EOS;
213: curr--;
214: if (curr < url)
1.8 cvs 215: goto finished;
216:
1.29 cvs 217: /* search for the DIR_STR indicating the host name start */
1.33 cvs 218: while ((curr > url) && ((*curr != used_sep) || (*(curr + 1) != used_sep)))
1.9 cvs 219: curr--;
1.8 cvs 220:
221: /* if we found it, separate the host name from the directory */
1.33 cvs 222: if ((*curr == DIR_SEP) && (*(curr + 1) == used_sep))
1.8 cvs 223: {
1.9 cvs 224: *host = temp = curr + 2;
1.33 cvs 225: while ((*temp != 0) && (*temp != used_sep))
1.8 cvs 226: temp++;
1.33 cvs 227: if (*temp == used_sep)
1.8 cvs 228: {
229: *temp = EOS;
230: *dir = temp + 1;
231: }
232: }
233: else
1.11 cvs 234: *dir = curr;
235:
1.9 cvs 236: if (curr <= url)
1.8 cvs 237: goto finished;
238:
239: /* mark the end of the proto */
1.9 cvs 240: *curr = EOS;
241: curr--;
242: if (curr < url)
1.8 cvs 243: goto finished;
244:
1.67 cvs 245: if (*curr == TEXT(':'))
1.8 cvs 246: {
1.9 cvs 247: *curr = EOS;
248: curr--;
1.8 cvs 249: }
250: else
251: goto finished;
1.11 cvs 252:
1.9 cvs 253: if (curr < url)
1.8 cvs 254: goto finished;
1.9 cvs 255: while ((curr > url) && (isalpha (*curr)))
256: curr--;
257: *proto = curr;
1.8 cvs 258:
259: finished:;
260:
261: #ifdef AMAYA_DEBUG
262: fprintf (stderr, "ExplodeURL(%s)\n\t", url);
263: if (*proto)
264: fprintf (stderr, "proto : %s, ", *proto);
265: if (*host)
266: fprintf (stderr, "host : %s, ", *host);
267: if (*dir)
268: fprintf (stderr, "dir : %s, ", *dir);
269: if (*file)
270: fprintf (stderr, "file : %s ", *file);
271: fprintf (stderr, "\n");
272: #endif
273:
274: }
1.3 cvs 275:
1.61 cvs 276:
277: /*----------------------------------------------------------------------
278: ExtractSuffix extract suffix from document nane.
279: ----------------------------------------------------------------------*/
280: #ifdef __STDC__
281: void ExtractSuffix (STRING aName, STRING aSuffix)
282: #else
283: void ExtractSuffix (aName, aSuffix)
284: STRING aName;
285: STRING aSuffix;
286:
287: #endif
288: {
289: int lg, i;
290: STRING ptr, oldptr;
291:
292: if (!aSuffix || !aName)
293: /* bad suffix */
294: return;
295:
296: aSuffix[0] = EOS;
297: lg = ustrlen (aName);
298: if (lg)
299: {
300: /* the name is not empty */
301: oldptr = ptr = &aName[0];
302: do
303: {
1.67 cvs 304: ptr = ustrrchr (oldptr, TEXT('.'));
1.61 cvs 305: if (ptr)
306: oldptr = &ptr[1];
307: }
308: while (ptr);
309:
310: i = (int) (oldptr) - (int) (aName); /* name length */
311: if (i > 1)
312: {
313: aName[i - 1] = EOS;
314: if (i != lg)
315: ustrcpy (aSuffix, oldptr);
316: }
317: }
318: }
319:
1.4 cvs 320: /*----------------------------------------------------------------------
1.9 cvs 321: IsHTMLName
322: returns TRUE if path points to an HTML resource.
1.4 cvs 323: ----------------------------------------------------------------------*/
1.3 cvs 324: #ifdef __STDC__
1.84 ! cvs 325: ThotBool IsHTMLName (const CHAR_T* path)
1.3 cvs 326: #else /* __STDC__ */
1.67 cvs 327: ThotBool IsHTMLName (path)
1.84 ! cvs 328: const CHAR_T* path;
1.3 cvs 329: #endif /* __STDC__ */
330: {
1.84 ! cvs 331: CHAR_T temppath[MAX_LENGTH];
! 332: CHAR_T suffix[MAX_LENGTH];
! 333: CHAR_T nsuffix[MAX_LENGTH];
! 334: int i;
1.5 cvs 335:
336: if (!path)
1.37 cvs 337: return (FALSE);
1.5 cvs 338:
1.84 ! cvs 339: ustrcpy (temppath, path);
1.5 cvs 340: ExtractSuffix (temppath, suffix);
341:
342: /* Normalize the suffix */
343: i = 0;
1.84 ! cvs 344: while (suffix[i] != WC_EOS && i < MAX_LENGTH -1)
1.13 cvs 345: {
1.84 ! cvs 346: nsuffix[i] = utolower (suffix[i]);
1.13 cvs 347: i++;
348: }
1.84 ! cvs 349: nsuffix[i] = WC_EOS;
! 350: if (!ustrcmp (nsuffix, TEXT("html")) ||
! 351: !ustrcmp (nsuffix, TEXT("htm")) ||
! 352: !ustrcmp (nsuffix, TEXT("shtml")) ||
! 353: !ustrcmp (nsuffix, TEXT("jsp")) ||
! 354: !ustrcmp (nsuffix, TEXT("xht")) ||
! 355: !ustrcmp (nsuffix, TEXT("xhtm")) ||
! 356: !ustrcmp (nsuffix, TEXT("xhtml")))
1.39 cvs 357: return (TRUE);
1.84 ! cvs 358: else if (!ustrcmp (nsuffix, TEXT("gz")))
1.13 cvs 359: {
1.39 cvs 360: /* take into account compressed files */
1.13 cvs 361: ExtractSuffix (temppath, suffix);
362: /* Normalize the suffix */
363: i = 0;
1.84 ! cvs 364: while (suffix[i] != WC_EOS && i < MAX_LENGTH -1)
1.13 cvs 365: {
1.84 ! cvs 366: nsuffix[i] = utolower (suffix[i]);
1.13 cvs 367: i++;
368: }
1.84 ! cvs 369: nsuffix[i] = WC_EOS;
! 370: if (!ustrcmp (nsuffix, TEXT("html")) ||
! 371: !ustrcmp (nsuffix, TEXT("htm")) ||
! 372: !ustrcmp (nsuffix, TEXT("shtml")) ||
! 373: !ustrcmp (nsuffix, TEXT("jsp")) ||
! 374: !ustrcmp (nsuffix, TEXT("xht")) ||
! 375: !ustrcmp (nsuffix, TEXT("xhtm")) ||
! 376: !ustrcmp (nsuffix, TEXT("xhtml")))
1.63 cvs 377:
1.39 cvs 378: return (TRUE);
379: else
1.13 cvs 380: return (FALSE);
381: }
382: else
1.39 cvs 383: return (FALSE);
1.3 cvs 384: }
385:
1.4 cvs 386: /*----------------------------------------------------------------------
1.56 cvs 387: IsXMLName
388: returns TRUE if path points to an XML resource.
389: ----------------------------------------------------------------------*/
390: #ifdef __STDC__
1.67 cvs 391: ThotBool IsXMLName (const STRING path)
1.56 cvs 392: #else /* __STDC__ */
1.67 cvs 393: ThotBool IsXMLName (path)
394: const STRING path;
1.56 cvs 395: #endif /* __STDC__ */
396: {
1.67 cvs 397: CHAR_T temppath[MAX_LENGTH];
398: CHAR_T suffix[MAX_LENGTH];
1.56 cvs 399:
400: if (!path)
401: return (FALSE);
402:
1.67 cvs 403: ustrcpy (temppath, path);
1.56 cvs 404: ExtractSuffix (temppath, suffix);
405:
1.67 cvs 406: if (!ustrcasecmp (suffix, TEXT("xml")) ||
407: !ustrcasecmp (suffix, TEXT("xht")) ||
408: !ustrcmp (suffix, TEXT("xhtm")) ||
409: !ustrcmp (suffix, TEXT("xhtml")))
1.56 cvs 410: return (TRUE);
1.67 cvs 411: else if (!ustrcmp (suffix, TEXT("gz")))
1.56 cvs 412: {
413: /* take into account compressed files */
414: ExtractSuffix (temppath, suffix);
1.67 cvs 415: if (!ustrcasecmp (suffix, TEXT("xml")) ||
416: !ustrcasecmp (suffix, TEXT("xht")) ||
417: !ustrcmp (suffix, TEXT("xhtm")) ||
418: !ustrcmp (suffix, TEXT("xhtml")))
1.60 cvs 419: return (TRUE);
420: else
421: return (FALSE);
422: }
423: else
424: return (FALSE);
425: }
426:
427: /*----------------------------------------------------------------------
428: IsCSSName
429: returns TRUE if path points to an XML resource.
430: ----------------------------------------------------------------------*/
431: #ifdef __STDC__
1.67 cvs 432: ThotBool IsCSSName (const STRING path)
1.60 cvs 433: #else /* __STDC__ */
1.67 cvs 434: ThotBool IsCSSName (path)
435: const STRING path;
1.60 cvs 436: #endif /* __STDC__ */
437: {
1.67 cvs 438: CHAR_T temppath[MAX_LENGTH];
439: CHAR_T suffix[MAX_LENGTH];
1.60 cvs 440:
441: if (!path)
442: return (FALSE);
443:
1.67 cvs 444: ustrcpy (temppath, path);
1.60 cvs 445: ExtractSuffix (temppath, suffix);
446:
1.67 cvs 447: if (!ustrcasecmp (suffix, TEXT("css")))
1.60 cvs 448: return (TRUE);
1.67 cvs 449: else if (!ustrcmp (suffix, TEXT("gz")))
1.60 cvs 450: {
451: /* take into account compressed files */
452: ExtractSuffix (temppath, suffix);
1.67 cvs 453: if (!ustrcasecmp (suffix, TEXT("css")))
1.56 cvs 454: return (TRUE);
455: else
456: return (FALSE);
457: }
458: else
459: return (FALSE);
460: }
461:
462: /*----------------------------------------------------------------------
1.9 cvs 463: IsImageName
464: returns TRUE if path points to an image resource.
1.4 cvs 465: ----------------------------------------------------------------------*/
1.3 cvs 466: #ifdef __STDC__
1.67 cvs 467: ThotBool IsImageName (const STRING path)
1.3 cvs 468: #else /* __STDC__ */
1.67 cvs 469: ThotBool IsImageName (path)
470: const STRING path;
1.3 cvs 471: #endif /* __STDC__ */
472: {
1.67 cvs 473: CHAR_T temppath[MAX_LENGTH];
474: CHAR_T suffix[MAX_LENGTH];
475: CHAR_T nsuffix[MAX_LENGTH];
1.5 cvs 476: int i;
477:
478: if (!path)
1.13 cvs 479: return (FALSE);
1.5 cvs 480:
1.67 cvs 481: ustrcpy (temppath, path);
1.5 cvs 482: ExtractSuffix (temppath, suffix);
483:
484: /* Normalize the suffix */
485: i = 0;
1.39 cvs 486: while (suffix[i] != EOS && i < MAX_LENGTH -1)
1.13 cvs 487: {
1.67 cvs 488: nsuffix[i] = utolower (suffix[i]);
1.13 cvs 489: i++;
490: }
1.5 cvs 491: nsuffix[i] = EOS;
1.67 cvs 492: if ((!ustrcmp (nsuffix, TEXT("gif"))) || (!ustrcmp (nsuffix, TEXT("xbm"))) ||
493: (!ustrcmp (nsuffix, TEXT("xpm"))) || (!ustrcmp (nsuffix, TEXT("jpg"))) ||
494: (!ustrcmp (nsuffix, TEXT("png"))) || (!ustrcmp (nsuffix, TEXT("au"))))
1.39 cvs 495: return (TRUE);
496: return (FALSE);
1.3 cvs 497: }
498:
1.4 cvs 499: /*----------------------------------------------------------------------
1.58 cvs 500: IsImageType
501: returns TRUE if type points to an image resource.
502: ----------------------------------------------------------------------*/
503: #ifdef __STDC__
1.67 cvs 504: ThotBool IsImageType (const STRING type)
1.58 cvs 505: #else /* __STDC__ */
1.67 cvs 506: ThotBool IsImageType (type)
507: const STRING type;
1.58 cvs 508: #endif /* __STDC__ */
509: {
1.67 cvs 510: CHAR_T temptype[MAX_LENGTH];
1.58 cvs 511: int i;
512:
513: if (!type)
514: return (FALSE);
515:
1.67 cvs 516: ustrcpy (temptype, type);
1.58 cvs 517: /* Normalize the type */
518: i = 0;
519: while (temptype[i] != EOS)
520: {
521: temptype[i] = tolower (temptype[i]);
522: i++;
523: }
1.67 cvs 524: if ((!ustrcmp (temptype, TEXT("gif"))) || (!ustrcmp (temptype, TEXT("x-xbitmap"))) ||
525: (!ustrcmp (temptype, TEXT("x-xpixmap"))) || (!ustrcmp (temptype, TEXT("jpeg"))) ||
526: (!ustrcmp (temptype, TEXT("png"))))
1.58 cvs 527: return (TRUE);
528: return (FALSE);
529: }
530:
531: /*----------------------------------------------------------------------
1.9 cvs 532: IsTextName
1.4 cvs 533: ----------------------------------------------------------------------*/
1.3 cvs 534: #ifdef __STDC__
1.67 cvs 535: ThotBool IsTextName (const STRING path)
1.3 cvs 536: #else /* __STDC__ */
1.67 cvs 537: ThotBool IsTextName (path)
538: const STRING path;
1.3 cvs 539:
540: #endif /* __STDC__ */
541: {
1.67 cvs 542: CHAR_T temppath[MAX_LENGTH];
543: CHAR_T suffix[MAX_LENGTH];
544: CHAR_T nsuffix[MAX_LENGTH];
1.5 cvs 545: int i;
546:
547: if (!path)
1.13 cvs 548: return (FALSE);
1.5 cvs 549:
1.67 cvs 550: ustrcpy (temppath, path);
1.5 cvs 551: ExtractSuffix (temppath, suffix);
552:
553: /* Normalize the suffix */
554: i = 0;
1.39 cvs 555: while (suffix[i] != EOS && i < MAX_LENGTH -1)
1.5 cvs 556: {
1.25 cvs 557: nsuffix[i] = tolower (suffix[i]);
1.5 cvs 558: i++;
559: }
560: nsuffix[i] = EOS;
561:
1.67 cvs 562: if ((!ustrcmp (nsuffix, TEXT("txt"))) || (!ustrcmp (nsuffix, TEXT("dtd"))))
1.13 cvs 563: return (TRUE);
1.67 cvs 564: else if (!ustrcmp (nsuffix, TEXT("gz")))
1.13 cvs 565: {
1.39 cvs 566: /* take into account compressed files */
1.13 cvs 567: ExtractSuffix (temppath, suffix);
568: /* Normalize the suffix */
569: i = 0;
1.39 cvs 570: while (suffix[i] != EOS && i < MAX_LENGTH -1)
1.13 cvs 571: {
1.25 cvs 572: nsuffix[i] = tolower (suffix[i]);
1.13 cvs 573: i++;
574: }
575: nsuffix[i] = EOS;
1.67 cvs 576: if ((!ustrcmp (nsuffix, TEXT("txt"))) || (!ustrcmp (nsuffix, TEXT("dtd"))))
1.13 cvs 577: return (TRUE);
578: else
579: return (FALSE);
580: }
581: else
582: return (FALSE);
1.3 cvs 583: }
584:
1.4 cvs 585: /*----------------------------------------------------------------------
1.9 cvs 586: IsHTTPPath
587: returns TRUE if path is in fact an http URL.
1.4 cvs 588: ----------------------------------------------------------------------*/
1.3 cvs 589: #ifdef __STDC__
1.67 cvs 590: ThotBool IsHTTPPath (const STRING path)
1.3 cvs 591: #else /* __STDC__ */
1.67 cvs 592: ThotBool IsHTTPPath (path)
593: const STRING path;
1.3 cvs 594: #endif /* __STDC__ */
595: {
1.5 cvs 596: if (!path)
597: return FALSE;
1.3 cvs 598:
1.67 cvs 599: if ((!ustrncmp (path, TEXT("http:"), 5) != 0)
600: || !ustrncmp (path, TEXT("internal:"), 9))
1.58 cvs 601: return TRUE;
602: return FALSE;
1.3 cvs 603: }
604:
1.4 cvs 605: /*----------------------------------------------------------------------
1.9 cvs 606: IsWithParameters
607: returns TRUE if url has a concatenated query string.
1.4 cvs 608: ----------------------------------------------------------------------*/
1.3 cvs 609: #ifdef __STDC__
1.66 cvs 610: ThotBool IsWithParameters (const char *url)
1.3 cvs 611: #else /* __STDC__ */
1.66 cvs 612: ThotBool IsWithParameters (url)
1.34 cvs 613: const char *url;
1.3 cvs 614: #endif /* __STDC__ */
615: {
1.5 cvs 616: int i;
1.3 cvs 617:
1.9 cvs 618: if ((!url) || (url[0] == EOS))
1.5 cvs 619: return FALSE;
1.3 cvs 620:
1.9 cvs 621: i = strlen (url) - 1;
622: while (i > 0 && url[i--] != '?')
1.5 cvs 623: if (i < 0)
624: return FALSE;
1.3 cvs 625:
1.5 cvs 626: /* There is a parameter */
627: return TRUE;
1.3 cvs 628: }
629:
1.4 cvs 630: /*----------------------------------------------------------------------
1.9 cvs 631: IsW3Path
632: returns TRUE if path is in fact a URL.
1.4 cvs 633: ----------------------------------------------------------------------*/
1.3 cvs 634: #ifdef __STDC__
1.84 ! cvs 635: ThotBool IsW3Path (const CHAR_T* path)
1.3 cvs 636: #else /* __STDC__ */
1.67 cvs 637: ThotBool IsW3Path (path)
1.84 ! cvs 638: const CHAR_T* path;
1.3 cvs 639: #endif /* __STDC__ */
640: {
1.84 ! cvs 641: if (ustrncmp (path, TEXT("http:"), 5) &&
! 642: ustrncmp (path, TEXT("ftp:"), 4) &&
! 643: ustrncmp (path, TEXT("telnet:"), 7) &&
! 644: ustrncmp (path, TEXT("wais:"), 5) &&
! 645: ustrncmp (path, TEXT("news:"), 5) &&
! 646: ustrncmp (path, TEXT("gopher:"), 7) &&
! 647: ustrncmp (path, TEXT("mailto:"), 7) &&
! 648: ustrncmp (path, TEXT("archie:"), 7))
1.72 cvs 649: return FALSE;
650: return TRUE;
1.3 cvs 651: }
652:
1.4 cvs 653: /*----------------------------------------------------------------------
1.9 cvs 654: IsValidProtocol
655: returns true if the url protocol is supported by Amaya.
1.4 cvs 656: ----------------------------------------------------------------------*/
1.3 cvs 657: #ifdef __STDC__
1.67 cvs 658: ThotBool IsValidProtocol (const STRING url)
1.3 cvs 659: #else /* __STDC__ */
1.67 cvs 660: ThotBool IsValidProtocol (url)
661: const STRING url;
1.3 cvs 662: #endif /* __STDC__ */
663: {
1.67 cvs 664: if (!ustrncmp (url, TEXT("http:"), 5)
1.69 cvs 665: || !ustrncmp (url, TEXT("internal:"), 9)
1.70 cvs 666: || !ustrncmp (url, TEXT("ftp:"), 4))
1.22 cvs 667: /* experimental */
1.58 cvs 668: /*** || !strncmp (url, "ftp:", 4) ***/
1.24 cvs 669: /*** || !strncmp (path, "news:", 5)***/
1.8 cvs 670: return (TRUE);
1.5 cvs 671: else
1.8 cvs 672: return (FALSE);
1.3 cvs 673: }
674:
1.31 cvs 675:
676: /*----------------------------------------------------------------------
677: GetBaseURL
678: normalizes orgName according to a base associated with doc, and
679: following the standard URL format rules.
680: The function returns the base used to solve relative URL and SRC:
681: - the base of the document,
682: - or the document path (without document name).
683: ----------------------------------------------------------------------*/
684: #ifdef __STDC__
1.84 ! cvs 685: CHAR_T* GetBaseURL (Document doc)
1.31 cvs 686: #else /* __STDC__ */
1.84 ! cvs 687: CHAR_T* GetBaseURL (doc)
1.31 cvs 688: Document doc;
689: #endif /* __STDC__ */
690: {
691: Element el;
692: ElementType elType;
693: AttributeType attrType;
694: Attribute attr;
1.84 ! cvs 695: CHAR_T *ptr, *basename;
1.31 cvs 696: int length;
697:
1.57 cvs 698: /* @@@ irene */
699: if (!DocumentURLs[doc])
700: return NULL;
1.67 cvs 701: basename = TtaAllocString (MAX_LENGTH);
702: ustrncpy (basename, DocumentURLs[doc], MAX_LENGTH-1);
1.84 ! cvs 703: basename[MAX_LENGTH-1] = WC_EOS;
1.31 cvs 704: length = MAX_LENGTH -1;
705: /* get the root element */
706: el = TtaGetMainRoot (doc);
707: /* search the BASE element */
708: elType.ElSSchema = TtaGetDocumentSSchema (doc);
1.65 cvs 709: elType.ElTypeNum = HTML_EL_HEAD;
710: el = TtaSearchTypedElement (elType, SearchForward, el);
711: if (el)
712: {
713: elType.ElTypeNum = HTML_EL_BASE;
714: el = TtaSearchTypedElement (elType, SearchInTree, el);
715: }
1.31 cvs 716: if (el)
717: {
718: /* The document has a BASE element -> Get the HREF attribute */
719: attrType.AttrSSchema = elType.ElSSchema;
720: attrType.AttrTypeNum = HTML_ATTR_HREF_;
721: attr = TtaGetAttribute (el, attrType);
722: if (attr)
723: {
724: /* Use the base path of the document */
725: TtaGiveTextAttributeValue (attr, basename, &length);
726: /* base and orgName have to be separated by a DIR_SEP */
727: length--;
1.84 ! cvs 728: if (basename[0] != WC_EOS && basename[length] != WC_URL_SEP && basename[length] != WC_DIR_SEP)
1.31 cvs 729: /* verify if the base has the form "protocol://server:port" */
730: {
1.84 ! cvs 731: ptr = AmayaParseUrl (basename, TEXT(""), AMAYA_PARSE_ACCESS |
1.33 cvs 732: AMAYA_PARSE_HOST |
733: AMAYA_PARSE_PUNCTUATION);
1.67 cvs 734: if (ptr && !ustrcmp (ptr, basename))
1.31 cvs 735: {
1.43 cvs 736: /* it has this form, we complete it by adding a URL_STR */
1.84 ! cvs 737: if (ustrchr (basename, WC_DIR_SEP))
! 738: ustrcat (basename, WC_DIR_STR);
1.43 cvs 739: else
1.84 ! cvs 740: ustrcat (basename, WC_URL_STR);
1.31 cvs 741: length++;
742: }
743: if (ptr)
744: TtaFreeMemory (ptr);
745: }
746: }
1.33 cvs 747: }
748:
1.31 cvs 749: /* Remove anything after the last DIR_SEP char. If no such char is found,
750: * then search for the first ":" char, hoping that what's before that is a
751: * protocol. If found, end the string there. If neither char is found,
752: * then discard the whole base element.
753: */
1.67 cvs 754: length = ustrlen (basename) - 1;
1.31 cvs 755: /* search for the last DIR_SEP char */
1.84 ! cvs 756: while (length >= 0 && basename[length] != WC_URL_SEP && basename[length] != WC_DIR_SEP)
1.31 cvs 757: length--;
758: if (length >= 0)
759: /* found the last DIR_SEP char, end the string there */
1.84 ! cvs 760: basename[length + 1] = WC_EOS;
1.31 cvs 761: else
762: /* search for the first PATH_STR char */
763: {
1.67 cvs 764: for (length = 0; basename[length] != TEXT(':') &&
1.84 ! cvs 765: basename[length] != WC_EOS; length ++);
1.67 cvs 766: if (basename[length] == TEXT(':'))
1.31 cvs 767: /* found, so end the string there */
1.84 ! cvs 768: basename[length + 1] = WC_EOS;
1.31 cvs 769: else
770: /* not found, discard the base */
1.84 ! cvs 771: basename[0] = WC_EOS;
1.31 cvs 772: }
773: return (basename);
774: }
775:
776:
1.4 cvs 777: /*----------------------------------------------------------------------
1.40 cvs 778: GetLocalPath
779: Allocate and return the local document path associated to the url
780: ----------------------------------------------------------------------*/
781: #ifdef __STDC__
1.84 ! cvs 782: CHAR_T* GetLocalPath (Document doc, CHAR_T* url)
1.40 cvs 783: #else /* __STDC__ */
1.84 ! cvs 784: CHAR_T* GetLocalPath (doc, url)
1.40 cvs 785: Document doc;
1.84 ! cvs 786: CHAR_T* url;
1.40 cvs 787: #endif /* __STDC__ */
788: {
1.84 ! cvs 789: CHAR_T* ptr;
! 790: CHAR_T* n;
! 791: CHAR_T* documentname;
! 792: CHAR_T url_sep;
1.83 cvs 793: int len;
1.67 cvs 794: ThotBool noFile;
1.40 cvs 795:
796: if (url != NULL)
797: {
798: /* check whether the file name exists */
1.84 ! cvs 799: len = ustrlen (url) - 1;
1.71 cvs 800: if (IsW3Path (url))
1.84 ! cvs 801: url_sep = TEXT('/');
1.41 cvs 802: else
1.84 ! cvs 803: url_sep = WC_DIR_SEP;
1.41 cvs 804: noFile = (url[len] == url_sep);
1.40 cvs 805: if (noFile)
1.84 ! cvs 806: url[len] = WC_EOS;
! 807: ptr = TtaAllocString (MAX_LENGTH);
! 808: documentname = TtaAllocString (MAX_LENGTH);
1.78 cvs 809: TtaExtractName (url, ptr, documentname);
1.84 ! cvs 810: usprintf (ptr, TEXT("%s%s%d%s"), TempFileDirectory, WC_DIR_STR, doc, WC_DIR_STR);
1.40 cvs 811: if (!TtaCheckDirectory (ptr))
812: /* directory did not exist */
1.72 cvs 813: TtaMakeDirectory (ptr);
1.47 cvs 814:
815: /* don't include the query string within document name */
1.84 ! cvs 816: n = ustrrchr (documentname, TEXT('?'));
1.47 cvs 817: if (n != NULL)
1.84 ! cvs 818: *n = WC_EOS;
1.46 cvs 819: /* don't include ':' within document name */
1.84 ! cvs 820: n = ustrchr (documentname, TEXT(':'));
1.46 cvs 821: if (n != NULL)
1.84 ! cvs 822: *n = WC_EOS;
1.69 cvs 823: /* if after all this operations document name
824: is empty, let's use noname.html instead */
1.84 ! cvs 825: if (documentname[0] == WC_EOS)
! 826: ustrcat (ptr, TEXT("noname.html"));
1.69 cvs 827: else
1.84 ! cvs 828: ustrcat (ptr, documentname);
1.40 cvs 829: TtaFreeMemory (documentname);
830: /* restore the url */
831: if (noFile)
1.41 cvs 832: url[len] = url_sep;
1.40 cvs 833: return (ptr);
834: }
835: else
836: return (NULL);
837: }
838:
1.73 cvs 839: /*----------------------------------------------------------------------
1.79 cvs 840: ExtractTarget extract the target name from document nane.
841: ----------------------------------------------------------------------*/
842: #ifdef __STDC__
1.84 ! cvs 843: void ExtractTarget (CHAR_T* aName, CHAR_T* target)
1.79 cvs 844: #else
845: void ExtractTarget (aName, target)
1.84 ! cvs 846: CHAR_T* aName;
! 847: CHAR_T* target;
1.79 cvs 848: #endif
849: {
1.82 cvs 850: int lg, i;
1.84 ! cvs 851: CHAR_T* ptr;
! 852: CHAR_T* oldptr;
1.79 cvs 853:
854: if (!target || !aName)
855: /* bad target */
856: return;
857:
1.84 ! cvs 858: target[0] = WC_EOS;
! 859: lg = ustrlen (aName);
1.79 cvs 860: if (lg)
861: {
862: /* the name is not empty */
863: oldptr = ptr = &aName[0];
864: do
865: {
1.84 ! cvs 866: ptr = ustrrchr (oldptr, TEXT('#'));
1.79 cvs 867: if (ptr)
868: oldptr = &ptr[1];
869: }
870: while (ptr);
871:
872: i = (int) (oldptr) - (int) (aName); /* name length */
873: if (i > 1)
874: {
1.84 ! cvs 875: aName[i - 1] = WC_EOS;
1.79 cvs 876: if (i != lg)
1.84 ! cvs 877: ustrcpy (target, oldptr);
1.79 cvs 878: }
879: }
880: }
881:
882: /*----------------------------------------------------------------------
1.73 cvs 883: ConvertFileURL
884: If the URL starts with file: prefix, it removes the protocol so that we
885: can use it as a local filename
886: ----------------------------------------------------------------------*/
887: #ifdef __STDC__
1.84 ! cvs 888: void ConvertFileURL (CHAR_T* url)
1.73 cvs 889: #else
890: void ConvertFileURL (url)
1.84 ! cvs 891: CHAR_T* url
1.73 cvs 892: #endif /* __STDC__ */
893: {
1.84 ! cvs 894: if (!ustrncasecmp (url, TEXT("file:"), 5))
! 895: ustrcpy (url, url + 5);
1.73 cvs 896: }
1.40 cvs 897:
898: /*----------------------------------------------------------------------
1.9 cvs 899: NormalizeURL
900: normalizes orgName according to a base associated with doc, and
901: following the standard URL format rules.
1.53 cvs 902: if doc is 0 and otherPath not NULL, normalizes orgName according to this
903: other path.
1.9 cvs 904: The function returns the new complete and normalized URL
1.12 cvs 905: or file name path (newName) and the name of the document (docName).
1.9 cvs 906: N.B. If the function can't find out what's the docName, it assigns
907: the name "noname.html".
1.4 cvs 908: ----------------------------------------------------------------------*/
1.3 cvs 909: #ifdef __STDC__
1.84 ! cvs 910: void NormalizeURL (CHAR_T* orgName, Document doc, CHAR_T* newName, CHAR_T* docName, CHAR_T* otherPath)
1.3 cvs 911: #else /* __STDC__ */
1.53 cvs 912: void NormalizeURL (orgName, doc, newName, docName, otherPath)
1.84 ! cvs 913: CHAR_T* orgName;
1.3 cvs 914: Document doc;
1.84 ! cvs 915: CHAR_T* newName;
! 916: CHAR_T* docName;
! 917: CHAR_T* otherPath;
1.3 cvs 918: #endif /* __STDC__ */
919: {
1.84 ! cvs 920: CHAR_T* basename;
! 921: CHAR_T tempOrgName[MAX_LENGTH];
! 922: CHAR_T* ptr;
! 923: CHAR_T used_sep;
! 924: int length;
! 925: ThotBool check;
1.5 cvs 926:
1.44 cvs 927: # ifdef _WINDOWS
928: int ndx;
929: # endif /* _WINDOWS */
930:
1.5 cvs 931: if (!newName || !docName)
932: return;
1.18 cvs 933:
1.32 cvs 934: if (doc != 0)
1.53 cvs 935: basename = GetBaseURL (doc);
936: else if (otherPath != NULL)
1.84 ! cvs 937: basename = TtaWCSdup (otherPath);
1.32 cvs 938: else
1.53 cvs 939: basename = NULL;
1.32 cvs 940:
1.18 cvs 941: /*
1.31 cvs 942: * Clean orgName
943: * Make sure we have a complete orgName, without any leading or trailing
944: * white spaces, or trailinbg new lines
945: */
1.5 cvs 946: ptr = orgName;
1.18 cvs 947: /* skip leading white space and new line characters */
1.84 ! cvs 948: while ((*ptr == WC_SPACE || *ptr == WC_EOL) && *ptr++ != WC_EOS);
! 949: ustrncpy (tempOrgName, ptr, MAX_LENGTH -1);
! 950: tempOrgName[MAX_LENGTH -1] = WC_EOS;
1.18 cvs 951: /*
1.31 cvs 952: * Make orgName a complete URL
953: * If the URL does not include a protocol, then try to calculate
954: * one using the doc's base element (if it exists),
955: */
1.84 ! cvs 956: if (tempOrgName[0] == WC_EOS)
1.53 cvs 957: {
1.84 ! cvs 958: newName[0] = WC_EOS;
1.53 cvs 959: TtaFreeMemory (basename);
960: return;
961: }
1.49 cvs 962:
963: /* clean trailing white space */
1.84 ! cvs 964: length = ustrlen (tempOrgName) - 1;
! 965: while (tempOrgName[length] == WC_SPACE && tempOrgName[length] == WC_EOL)
1.53 cvs 966: {
1.84 ! cvs 967: tempOrgName[length] = WC_EOS;
1.53 cvs 968: length--;
969: }
1.50 cvs 970:
1.55 cvs 971: /* remove extra dot (which dot???) */
972: /* ugly, but faster than a strcmp */
1.84 ! cvs 973: if (tempOrgName[length] == TEXT('.')
! 974: && (length == 0 || tempOrgName[length-1] != TEXT('.')))
! 975: tempOrgName[length] = WC_EOS;
1.50 cvs 976:
1.53 cvs 977: if (IsW3Path (tempOrgName))
978: {
979: /* the name is complete, go to the Sixth Step */
1.84 ! cvs 980: ustrcpy (newName, tempOrgName);
1.53 cvs 981: SimplifyUrl (&newName);
982: /* verify if the URL has the form "protocol://server:port" */
1.84 ! cvs 983: ptr = AmayaParseUrl (newName, TEXT(""), AMAYA_PARSE_ACCESS | AMAYA_PARSE_HOST | AMAYA_PARSE_PUNCTUATION);
! 984: if (ptr && !ustrcmp (ptr, newName)) /* it has this form, we complete it by adding a DIR_STR */
! 985: ustrcat (newName, WC_URL_STR);
1.49 cvs 986:
1.53 cvs 987: if (ptr)
1.50 cvs 988: TtaFreeMemory (ptr);
1.53 cvs 989: }
990: else if ( basename == NULL)
991: /* the name is complete, go to the Sixth Step */
1.84 ! cvs 992: ustrcpy (newName, tempOrgName);
1.53 cvs 993: else
994: {
1.31 cvs 995: /* Calculate the absolute URL, using the base or document URL */
1.44 cvs 996: # ifdef _WINDOWS
1.53 cvs 997: if (!IsW3Path (basename))
998: {
1.67 cvs 999: length = ustrlen (tempOrgName);
1.53 cvs 1000: for (ndx = 0; ndx < length; ndx++)
1.67 cvs 1001: if (tempOrgName [ndx] == TEXT('/'))
1002: tempOrgName [ndx] = TEXT('\\');
1.53 cvs 1003: }
1.44 cvs 1004: # endif /* _WINDOWS */
1.25 cvs 1005: ptr = AmayaParseUrl (tempOrgName, basename, AMAYA_PARSE_ALL);
1.53 cvs 1006: if (ptr)
1007: {
1008: SimplifyUrl (&ptr);
1.84 ! cvs 1009: ustrcpy (newName, ptr);
1.53 cvs 1010: TtaFreeMemory (ptr);
1011: }
1012: else
1.84 ! cvs 1013: newName[0] = WC_EOS;
1.53 cvs 1014: }
1.36 cvs 1015:
1016: TtaFreeMemory (basename);
1.18 cvs 1017: /*
1.31 cvs 1018: * Prepare the docname that will refer to this ressource in the
1019: * .amaya directory. If the new URL finishes on DIR_SEP, then use
1020: * noname.html as a default ressource name
1.18 cvs 1021: */
1.84 ! cvs 1022: if (newName[0] != WC_EOS)
1.53 cvs 1023: {
1.84 ! cvs 1024: length = ustrlen (newName) - 1;
! 1025: if (newName[length] == WC_URL_SEP || newName[length] == WC_DIR_SEP)
1.53 cvs 1026: {
1027: used_sep = newName[length];
1028: check = TRUE;
1029: while (check)
1030: {
1.50 cvs 1031: length--;
1032: while (length >= 0 && newName[length] != used_sep)
1.53 cvs 1033: length--;
1.84 ! cvs 1034: if (!ustrncmp (&newName[length+1], TEXT(".."), 2))
1.53 cvs 1035: {
1.84 ! cvs 1036: newName[length+1] = WC_EOS;
1.53 cvs 1037: /* remove also previous directory */
1038: length--;
1039: while (length >= 0 && newName[length] != used_sep)
1040: length--;
1.84 ! cvs 1041: if (ustrncmp (&newName[length+1], TEXT("//"), 2))
1.53 cvs 1042: /* don't remove server name */
1.84 ! cvs 1043: newName[length+1] = WC_EOS;
1.53 cvs 1044: }
1.84 ! cvs 1045: else if (!ustrncmp (&newName[length+1], TEXT("."), 1))
! 1046: newName[length+1] = WC_EOS;
1.50 cvs 1047: else
1.53 cvs 1048: check = FALSE;
1049: }
1.84 ! cvs 1050: ustrcpy (docName, TEXT("noname.html"));
1.53 cvs 1051: /* docname was not comprised inside the URL, so let's */
1052: /* assign the default ressource name */
1.84 ! cvs 1053: ustrcpy (docName, TEXT("noname.html"));
1.53 cvs 1054: }
1055: else
1056: { /* docname is comprised inside the URL */
1.84 ! cvs 1057: while (length >= 0 && newName[length] != WC_URL_SEP && newName[length] != WC_DIR_SEP)
1.53 cvs 1058: length--;
1059: if (length < 0)
1.84 ! cvs 1060: ustrcpy (docName, newName);
1.53 cvs 1061: else
1.84 ! cvs 1062: ustrcpy (docName, &newName[length+1]);
1.53 cvs 1063: }
1064: }
1065: else
1.84 ! cvs 1066: docName[0] = WC_EOS;
1.18 cvs 1067: }
1.3 cvs 1068:
1.4 cvs 1069: /*----------------------------------------------------------------------
1.9 cvs 1070: IsSameHost
1.4 cvs 1071: ----------------------------------------------------------------------*/
1.3 cvs 1072: #ifdef __STDC__
1.67 cvs 1073: ThotBool IsSameHost (const STRING url1, const STRING url2)
1.3 cvs 1074: #else /* __STDC__ */
1.67 cvs 1075: ThotBool IsSameHost (url1, url2)
1076: const STRING url1;
1077: const STRING url2;
1.3 cvs 1078: #endif /* __STDC__ */
1079: {
1.67 cvs 1080: STRING basename_ptr1, basename_ptr2;
1081: ThotBool result;
1.3 cvs 1082:
1.84 ! cvs 1083: basename_ptr1 = AmayaParseUrl (url1, TEXT(""), AMAYA_PARSE_ACCESS | AMAYA_PARSE_HOST | AMAYA_PARSE_PUNCTUATION);
1.67 cvs 1084: basename_ptr2 = AmayaParseUrl (url2, _EMPTYSTR_, AMAYA_PARSE_ACCESS | AMAYA_PARSE_HOST | AMAYA_PARSE_PUNCTUATION);
1.3 cvs 1085:
1.67 cvs 1086: if (ustrcmp (basename_ptr1, basename_ptr2))
1.8 cvs 1087: result = FALSE;
1.5 cvs 1088: else
1.8 cvs 1089: result = TRUE;
1.3 cvs 1090:
1.25 cvs 1091: TtaFreeMemory (basename_ptr1);
1092: TtaFreeMemory (basename_ptr2);
1.5 cvs 1093: return (result);
1.3 cvs 1094: }
1095:
1096:
1.4 cvs 1097: /*----------------------------------------------------------------------
1.22 cvs 1098: HasKnownFileSuffix
1099: returns TRUE if path points to a file ending with a suffix.
1100: ----------------------------------------------------------------------*/
1101: #ifdef __STDC__
1.67 cvs 1102: ThotBool HasKnownFileSuffix (const STRING path)
1.22 cvs 1103: #else /* __STDC__ */
1.67 cvs 1104: ThotBool HasKnownFileSuffix (path)
1105: const STRING path;
1.22 cvs 1106: #endif /* __STDC__ */
1107: {
1.67 cvs 1108: STRING root;
1109: CHAR_T temppath[MAX_LENGTH];
1110: CHAR_T suffix[MAX_LENGTH];
1.22 cvs 1111:
1.67 cvs 1112: if (!path || path[0] == EOS || path[ustrlen(path)] == DIR_SEP)
1.22 cvs 1113: return (FALSE);
1114:
1.84 ! cvs 1115: root = AmayaParseUrl(path, TEXT(""), AMAYA_PARSE_PATH | AMAYA_PARSE_PUNCTUATION);
1.22 cvs 1116:
1117: if (root)
1118: {
1.67 cvs 1119: ustrcpy (temppath, root);
1.25 cvs 1120: TtaFreeMemory (root);
1.22 cvs 1121: /* Get the suffix */
1122: ExtractSuffix (temppath, suffix);
1123:
1124: if( suffix[0] == EOS)
1125: /* no suffix */
1126: return (FALSE);
1127:
1128: /* Normalize the suffix */
1129: ConvertToLowerCase (suffix);
1130:
1.67 cvs 1131: if (!ustrcmp (suffix, TEXT("gz")))
1.22 cvs 1132: /* skip the compressed suffix */
1133: {
1134: ExtractSuffix (temppath, suffix);
1135: if(suffix[0] == EOS)
1136: /* no suffix */
1137: return (FALSE);
1138: /* Normalize the suffix */
1139: ConvertToLowerCase (suffix);
1140: }
1141:
1.67 cvs 1142: if (ustrcmp (suffix, TEXT("gif")) &&
1143: ustrcmp (suffix, TEXT("xbm")) &&
1144: ustrcmp (suffix, TEXT("xpm")) &&
1145: ustrcmp (suffix, TEXT("jpg")) &&
1146: ustrcmp (suffix, TEXT("pdf")) &&
1147: ustrcmp (suffix, TEXT("png")) &&
1148: ustrcmp (suffix, TEXT("tgz")) &&
1149: ustrcmp (suffix, TEXT("xpg")) &&
1150: ustrcmp (suffix, TEXT("xpd")) &&
1151: ustrcmp (suffix, TEXT("ps")) &&
1152: ustrcmp (suffix, TEXT("au")) &&
1153: ustrcmp (suffix, TEXT("html")) &&
1154: ustrcmp (suffix, TEXT("htm")) &&
1155: ustrcmp (suffix, TEXT("shtml")) &&
1156: ustrcmp (suffix, TEXT("xht")) &&
1157: ustrcmp (suffix, TEXT("xhtm")) &&
1158: ustrcmp (suffix, TEXT("xhtml")) &&
1159: ustrcmp (suffix, TEXT("txt")) &&
1160: ustrcmp (suffix, TEXT("css")) &&
1161: ustrcmp (suffix, TEXT("eps")))
1.22 cvs 1162: return (FALSE);
1163: else
1164: return (TRUE);
1165: }
1166: else
1167: return (FALSE);
1168: }
1169:
1170:
1171: /*----------------------------------------------------------------------
1.24 cvs 1172: ChopURL
1173: Gives back a URL no longer than MAX_PRINT_URL_LENGTH chars (outputURL).
1174: If inputURL is bigger than that size, outputURL receives
1175: MAX_PRINT_URL_LENGTH / 2 chars from the beginning of inputURL, "...",
1176: and MAX_PRINT_URL_LENGTH / 2 chars from the end of inputURL.
1177: If inputURL is not longer than MAX_PRINT_URL_LENGTH chars, it gets
1178: copied into outputURL.
1179: N.B.: outputURL must point to a memory block of MAX_PRINT_URL_LENGTH
1180: chars.
1181: ----------------------------------------------------------------------*/
1182: #ifdef __STDC__
1.34 cvs 1183: void ChopURL (char *outputURL, const char *inputURL)
1.24 cvs 1184: #else
1185: void ChopURL (outputURL, inputURL)
1.34 cvs 1186: char *outputURL;
1187: const char *inputURL;
1.24 cvs 1188: #endif
1.22 cvs 1189:
1.24 cvs 1190: {
1191: int len;
1.9 cvs 1192:
1.24 cvs 1193: len = strlen (inputURL);
1194: if (len <= MAX_PRINT_URL_LENGTH)
1.29 cvs 1195: strcpy (outputURL, inputURL);
1.24 cvs 1196: else
1197: /* make a truncated urlName on the status window */
1198: {
1199: strncpy (outputURL, inputURL, MAX_PRINT_URL_LENGTH / 2);
1200: outputURL [MAX_PRINT_URL_LENGTH / 2] = EOS;
1201: strcat (outputURL, "...");
1202: strcat (outputURL, &(inputURL[len - MAX_PRINT_URL_LENGTH / 2 ]));
1203: }
1.25 cvs 1204: }
1205:
1206:
1207: /*----------------------------------------------------------------------
1208: scan
1.47 cvs 1209: Scan a filename for its constituents
1.25 cvs 1210: -----------------------------------
1211:
1212: On entry,
1213: name points to a document name which may be incomplete.
1214: On exit,
1215: absolute or relative may be nonzero (but not both).
1216: host, fragment and access may be nonzero if they were specified.
1217: Any which are nonzero point to zero terminated strings.
1218: ----------------------------------------------------------------------*/
1219: #ifdef __STDC__
1.67 cvs 1220: static void scan (STRING name, HTURI * parts)
1.25 cvs 1221: #else /* __STDC__ */
1222: static void scan (name, parts)
1.67 cvs 1223: STRING name;
1224: HTURI *parts;
1.25 cvs 1225:
1226: #endif /* __STDC__ */
1227: {
1.67 cvs 1228: STRING p;
1229: STRING after_access = name;
1.32 cvs 1230:
1.43 cvs 1231: memset (parts, '\0', sizeof (HTURI));
1.28 cvs 1232: /* Look for fragment identifier */
1.67 cvs 1233: if ((p = ustrchr(name, TEXT('#'))) != NULL)
1.28 cvs 1234: {
1.67 cvs 1235: *p++ = TEXT('\0');
1.28 cvs 1236: parts->fragment = p;
1.25 cvs 1237: }
1238:
1.28 cvs 1239: for (p=name; *p; p++)
1240: {
1.67 cvs 1241: if (*p == URL_SEP || *p == DIR_SEP || *p == TEXT('#') || *p == TEXT('?'))
1.28 cvs 1242: break;
1.67 cvs 1243: if (*p == TEXT(':'))
1.28 cvs 1244: {
1245: *p = 0;
1246: parts->access = after_access; /* Scheme has been specified */
1247:
1248: /* The combination of gcc, the "-O" flag and the HP platform is
1249: unhealthy. The following three lines is a quick & dirty fix, but is
1250: not recommended. Rather, turn off "-O". */
1251:
1252: /* after_access = p;*/
1253: /* while (*after_access == 0)*/
1254: /* after_access++;*/
1255: after_access = p+1;
1.67 cvs 1256: if (!ustrcasecmp(TEXT("URL"), parts->access))
1.28 cvs 1257: /* Ignore IETF's URL: pre-prefix */
1258: parts->access = NULL;
1259: else
1.25 cvs 1260: break;
1261: }
1262: }
1263:
1264: p = after_access;
1.43 cvs 1265: if (*p == URL_SEP || *p == DIR_SEP)
1.28 cvs 1266: {
1.43 cvs 1267: if (p[1] == URL_SEP)
1.28 cvs 1268: {
1.25 cvs 1269: parts->host = p+2; /* host has been specified */
1.28 cvs 1270: *p = 0; /* Terminate access */
1271: /* look for end of host name if any */
1.67 cvs 1272: p = ustrchr (parts->host, URL_SEP);
1.28 cvs 1273: if (p)
1274: {
1.43 cvs 1275: *p = EOS; /* Terminate host */
1.25 cvs 1276: parts->absolute = p+1; /* Root has been found */
1.28 cvs 1277: }
1278: }
1279: else
1280: /* Root found but no host */
1281: parts->absolute = p+1;
1282: }
1283: else
1284: {
1.25 cvs 1285: parts->relative = (*after_access) ? after_access : 0; /* zero for "" */
1.28 cvs 1286: }
1.25 cvs 1287: }
1288:
1289:
1290: /*----------------------------------------------------------------------
1.28 cvs 1291: AmayaParseUrl: parse a Name relative to another name
1292:
1293: This returns those parts of a name which are given (and requested)
1294: substituting bits from the related name where necessary.
1.25 cvs 1295:
1.28 cvs 1296: On entry,
1.25 cvs 1297: aName A filename given
1298: relatedName A name relative to which aName is to be parsed. Give
1299: it an empty string if aName is absolute.
1300: wanted A mask for the bits which are wanted.
1301:
1.28 cvs 1302: On exit,
1.25 cvs 1303: returns A pointer to a malloc'd string which MUST BE FREED
1304: ----------------------------------------------------------------------*/
1305: #ifdef __STDC__
1.84 ! cvs 1306: CHAR_T* AmayaParseUrl (const CHAR_T* aName, CHAR_T* relatedName, int wanted)
1.25 cvs 1307: #else /* __STDC__ */
1.84 ! cvs 1308: CHAR_T* AmayaParseUrl (aName, relatedName, wanted)
! 1309: const CHAR_T* aName;
! 1310: CHAR_T* relatedName;
1.28 cvs 1311: int wanted;
1.25 cvs 1312:
1313: #endif /* __STDC__ */
1314: {
1.84 ! cvs 1315: CHAR_T* return_value;
1.67 cvs 1316: CHAR_T result[MAX_LENGTH];
1317: CHAR_T name[MAX_LENGTH];
1318: CHAR_T rel[MAX_LENGTH];
1.84 ! cvs 1319: CHAR_T *p, *access;
1.29 cvs 1320: HTURI given, related;
1321: int len;
1.67 cvs 1322: CHAR_T used_sep;
1.84 ! cvs 1323: CHAR_T* used_str;
1.32 cvs 1324:
1.84 ! cvs 1325: if (ustrchr (aName, WC_DIR_SEP) || ustrchr (relatedName, WC_DIR_SEP))
1.33 cvs 1326: {
1.84 ! cvs 1327: used_str = WC_DIR_STR;
! 1328: used_sep = WC_DIR_SEP;
1.33 cvs 1329: }
1.32 cvs 1330: else
1.33 cvs 1331: {
1.84 ! cvs 1332: used_str = WC_URL_STR;
! 1333: used_sep = WC_URL_SEP;
1.33 cvs 1334: }
1.32 cvs 1335:
1.29 cvs 1336: /* Make working copies of input strings to cut up: */
1337: return_value = NULL;
1338: result[0] = 0; /* Clear string */
1.67 cvs 1339: ustrcpy (name, aName);
1.29 cvs 1340: if (relatedName != NULL)
1.67 cvs 1341: ustrcpy (rel, relatedName);
1.29 cvs 1342: else
1.84 ! cvs 1343: relatedName[0] = WC_EOS;
1.29 cvs 1344:
1345: scan (name, &given);
1346: scan (rel, &related);
1347: access = given.access ? given.access : related.access;
1348: if (wanted & AMAYA_PARSE_ACCESS)
1349: if (access)
1350: {
1.67 cvs 1351: ustrcat (result, access);
1.29 cvs 1352: if(wanted & AMAYA_PARSE_PUNCTUATION)
1.67 cvs 1353: ustrcat (result, TEXT(":"));
1.29 cvs 1354: }
1355:
1356: if (given.access && related.access)
1357: /* If different, inherit nothing. */
1.67 cvs 1358: if (ustrcmp (given.access, related.access) != 0)
1.29 cvs 1359: {
1360: related.host = 0;
1361: related.absolute = 0;
1362: related.relative = 0;
1363: related.fragment = 0;
1364: }
1365:
1366: if (wanted & AMAYA_PARSE_HOST)
1367: if(given.host || related.host)
1368: {
1369: if(wanted & AMAYA_PARSE_PUNCTUATION)
1.67 cvs 1370: ustrcat (result, TEXT("//"));
1371: ustrcat (result, given.host ? given.host : related.host);
1.29 cvs 1372: }
1373:
1374: if (given.host && related.host)
1375: /* If different hosts, inherit no path. */
1.67 cvs 1376: if (ustrcmp (given.host, related.host) != 0)
1.29 cvs 1377: {
1378: related.absolute = 0;
1379: related.relative = 0;
1380: related.fragment = 0;
1381: }
1382:
1383: if (wanted & AMAYA_PARSE_PATH)
1384: {
1385: if (given.absolute)
1386: {
1387: /* All is given */
1388: if (wanted & AMAYA_PARSE_PUNCTUATION)
1.67 cvs 1389: ustrcat (result, used_str);
1390: ustrcat (result, given.absolute);
1.25 cvs 1391: }
1.29 cvs 1392: else if (related.absolute)
1393: {
1394: /* Adopt path not name */
1.67 cvs 1395: ustrcat (result, used_str);
1396: ustrcat (result, related.absolute);
1.29 cvs 1397: if (given.relative)
1398: {
1399: /* Search part? */
1.67 cvs 1400: p = ustrchr (result, TEXT('?'));
1.29 cvs 1401: if (!p)
1.67 cvs 1402: p=result+ustrlen(result)-1;
1.33 cvs 1403: for (; *p!=used_sep; p--); /* last / */
1.29 cvs 1404: /* Remove filename */
1405: p[1]=0;
1406: /* Add given one */
1.67 cvs 1407: ustrcat (result, given.relative);
1.25 cvs 1408: }
1409: }
1.29 cvs 1410: else if (given.relative)
1411: /* what we've got */
1.67 cvs 1412: ustrcat (result, given.relative);
1.29 cvs 1413: else if (related.relative)
1.67 cvs 1414: ustrcat (result, related.relative);
1.29 cvs 1415: else
1416: /* No inheritance */
1.67 cvs 1417: ustrcat (result, used_str);
1.25 cvs 1418: }
1.29 cvs 1419:
1420: if (wanted & AMAYA_PARSE_ANCHOR)
1421: if (given.fragment || related.fragment)
1422: {
1423: if (given.absolute && given.fragment)
1424: {
1425: /*Fixes for relURLs...*/
1426: if (wanted & AMAYA_PARSE_PUNCTUATION)
1.67 cvs 1427: ustrcat (result, TEXT("#"));
1428: ustrcat (result, given.fragment);
1.29 cvs 1429: }
1430: else if (!(given.absolute) && !(given.fragment))
1.84 ! cvs 1431: ustrcat (result, TEXT(""));
1.29 cvs 1432: else
1433: {
1434: if (wanted & AMAYA_PARSE_PUNCTUATION)
1.67 cvs 1435: ustrcat (result, TEXT("#"));
1436: ustrcat (result, given.fragment ? given.fragment : related.fragment);
1.29 cvs 1437: }
1438: }
1.67 cvs 1439: len = ustrlen (result);
1440: if ((return_value = TtaAllocString (len + 1)) != NULL)
1441: ustrcpy (return_value, result);
1.29 cvs 1442: return (return_value); /* exactly the right length */
1.25 cvs 1443: }
1444:
1445: /*----------------------------------------------------------------------
1446: HTCanon
1447: Canonicalizes the URL in the following manner starting from the host
1448: pointer:
1449:
1450: 1) The host name is converted to lowercase
1451: 2) Chop off port if `:80' (http), `:70' (gopher), or `:21' (ftp)
1452:
1453: Return: OK The position of the current path part of the URL
1454: which might be the old one or a new one.
1455:
1456: ----------------------------------------------------------------------*/
1457: #ifdef __STDC__
1.84 ! cvs 1458: static CHAR_T* HTCanon (CHAR_T** filename, CHAR_T* host)
1.25 cvs 1459: #else /* __STDC__ */
1.67 cvs 1460: static STRING HTCanon (filename, host)
1.84 ! cvs 1461: CHAR_T** filename;
! 1462: CHAR_T* host;
1.25 cvs 1463: #endif /* __STDC__ */
1464: {
1.84 ! cvs 1465: CHAR_T* newname = NULL;
! 1466: CHAR_T used_sep;
! 1467: CHAR_T* path;
! 1468: CHAR_T* strptr;
! 1469: CHAR_T* port;
! 1470: CHAR_T* access = host-3;
1.32 cvs 1471:
1472:
1.84 ! cvs 1473: if (*filename && ustrchr (*filename, WC_URL_SEP))
1.33 cvs 1474: {
1.84 ! cvs 1475: used_sep = WC_URL_SEP;
1.33 cvs 1476: }
1477: else
1478: {
1.84 ! cvs 1479: used_sep = WC_DIR_SEP;
1.33 cvs 1480: }
1.32 cvs 1481:
1.82 cvs 1482: while (access > *filename && *(access - 1) != used_sep) /* Find access method */
1.25 cvs 1483: access--;
1.84 ! cvs 1484: if ((path = ustrchr (host, used_sep)) == NULL) /* Find path */
! 1485: path = host + ustrlen (host);
! 1486: if ((strptr = ustrchr (host, TEXT('@'))) != NULL && strptr < path) /* UserId */
1.82 cvs 1487: host = strptr;
1.84 ! cvs 1488: if ((port = ustrchr (host, TEXT(':'))) != NULL && port > path) /* Port number */
1.82 cvs 1489: port = NULL;
1.25 cvs 1490:
1491: strptr = host; /* Convert to lower-case */
1.82 cvs 1492: while (strptr < path)
1.33 cvs 1493: {
1.84 ! cvs 1494: *strptr = utolower (*strptr);
1.82 cvs 1495: strptr++;
1.33 cvs 1496: }
1.25 cvs 1497:
1498: /* Does the URL contain a full domain name? This also works for a
1499: numerical host name. The domain name is already made lower-case
1500: and without a trailing dot. */
1501: {
1.84 ! cvs 1502: CHAR_T* dot = port ? port : path;
! 1503: if (dot > *filename && *--dot == TEXT('.'))
1.33 cvs 1504: {
1.84 ! cvs 1505: CHAR_T* orig = dot;
! 1506: CHAR_T* dest = dot + 1;
1.82 cvs 1507: while ((*orig++ = *dest++));
1508: if (port) port--;
1.33 cvs 1509: path--;
1.25 cvs 1510: }
1511: }
1512: /* Chop off port if `:', `:80' (http), `:70' (gopher), or `:21' (ftp) */
1.33 cvs 1513: if (port)
1514: {
1.82 cvs 1515: if (!*(port+1) || *(port+1) == used_sep)
1.33 cvs 1516: {
1517: if (!newname)
1518: {
1.84 ! cvs 1519: CHAR_T* orig = port;
! 1520: CHAR_T* dest = port + 1;
1.82 cvs 1521: while ((*orig++ = *dest++));
1.33 cvs 1522: }
1523: }
1.84 ! cvs 1524: else if ((!ustrncmp (access, TEXT("http"), 4) &&
! 1525: (*(port + 1) == TEXT('8') &&
! 1526: *(port+2) == TEXT('0') &&
1.82 cvs 1527: (*(port+3) == used_sep || !*(port + 3)))) ||
1.84 ! cvs 1528: (!ustrncmp (access, TEXT("gopher"), 6) &&
! 1529: (*(port+1) == TEXT('7') &&
! 1530: *(port+2) == TEXT('0') &&
1.82 cvs 1531: (*(port+3) == used_sep || !*(port+3)))) ||
1.84 ! cvs 1532: (!ustrncmp (access, TEXT("ftp"), 3) &&
! 1533: (*(port+1) == TEXT('2') &&
! 1534: *(port + 2) == TEXT('1') &&
1.82 cvs 1535: (*(port+3) == used_sep || !*(port+3))))) {
1.33 cvs 1536: if (!newname)
1537: {
1.84 ! cvs 1538: CHAR_T* orig = port;
! 1539: CHAR_T* dest = port + 3;
1.33 cvs 1540: while((*orig++ = *dest++));
1541: /* Update path position, Henry Minsky */
1542: path -= 3;
1.25 cvs 1543: }
1.33 cvs 1544: }
1545: else if (newname)
1.84 ! cvs 1546: ustrncat (newname, port, (int) (path - port));
1.33 cvs 1547: }
1.25 cvs 1548:
1.33 cvs 1549: if (newname)
1550: {
1.84 ! cvs 1551: CHAR_T* newpath = newname + ustrlen (newname);
! 1552: ustrcat (newname, path);
1.25 cvs 1553: path = newpath;
1.28 cvs 1554: /* Free old copy */
1555: TtaFreeMemory(*filename);
1.25 cvs 1556: *filename = newname;
1.33 cvs 1557: }
1.25 cvs 1558: return path;
1559: }
1560:
1561:
1562: /*----------------------------------------------------------------------
1.29 cvs 1563: SimplifyUrl: simplify a URI
1.32 cvs 1564: A URI is allowed to contain the sequence xxx/../ which may be
1565: replaced by "" , and the sequence "/./" which may be replaced by DIR_STR.
1.28 cvs 1566: Simplification helps us recognize duplicate URIs.
1.25 cvs 1567:
1.28 cvs 1568: Thus, /etc/junk/../fred becomes /etc/fred
1569: /etc/junk/./fred becomes /etc/junk/fred
1.25 cvs 1570:
1.28 cvs 1571: but we should NOT change
1572: http://fred.xxx.edu/../..
1.25 cvs 1573:
1574: or ../../albert.html
1575:
1.28 cvs 1576: In order to avoid empty URLs the following URLs become:
1.25 cvs 1577:
1578: /fred/.. becomes /fred/..
1579: /fred/././.. becomes /fred/..
1580: /fred/.././junk/.././ becomes /fred/..
1581:
1.28 cvs 1582: If more than one set of `://' is found (several proxies in cascade) then
1583: only the part after the last `://' is simplified.
1.25 cvs 1584:
1.28 cvs 1585: Returns: A string which might be the old one or a new one.
1.25 cvs 1586: ----------------------------------------------------------------------*/
1587: #ifdef __STDC__
1.84 ! cvs 1588: void SimplifyUrl (CHAR_T** url)
1.25 cvs 1589: #else /* __STDC__ */
1.29 cvs 1590: void SimplifyUrl (url)
1.84 ! cvs 1591: CHAR_T** url;
1.25 cvs 1592: #endif /* __STDC__ */
1593: {
1.84 ! cvs 1594: CHAR_T* path;
! 1595: CHAR_T* access;
! 1596: CHAR_T* newptr;
! 1597: CHAR_T* p;
! 1598: CHAR_T *orig, *dest, *end;
1.28 cvs 1599:
1.82 cvs 1600: CharUnit used_sep;
1.77 cvs 1601: ThotBool ddot_simplify; /* used to desactivate the double dot simplifcation:
1602: something/../ simplification in relative URLs when they start with a ../ */
1.32 cvs 1603:
1604:
1.28 cvs 1605: if (!url || !*url)
1606: return;
1607:
1.84 ! cvs 1608: if (ustrchr (*url, WC_URL_SEP))
1.33 cvs 1609: {
1.84 ! cvs 1610: used_sep = WC_URL_SEP;
1.33 cvs 1611: }
1.32 cvs 1612: else
1.33 cvs 1613: {
1.84 ! cvs 1614: used_sep = WC_DIR_SEP;
1.33 cvs 1615: }
1.32 cvs 1616:
1.77 cvs 1617: /* should we simplify double dot? */
1618: path = *url;
1.84 ! cvs 1619: if (*path == TEXT('.') && *(path + 1) == TEXT('.'))
1.77 cvs 1620: ddot_simplify = FALSE;
1621: else
1622: ddot_simplify = TRUE;
1623:
1.28 cvs 1624: /* Find any scheme name */
1.84 ! cvs 1625: if ((path = ustrstr (*url, TEXT("://"))) != NULL)
1.33 cvs 1626: {
1627: /* Find host name */
1.28 cvs 1628: access = *url;
1.84 ! cvs 1629: while (access < path && (*access = utolower (*access)))
1.82 cvs 1630: access++;
1.28 cvs 1631: path += 3;
1.84 ! cvs 1632: while ((newptr = ustrstr (path, TEXT ("://"))) != NULL)
1.82 cvs 1633: /* For proxies */
1634: path = newptr+3;
1635: /* We have a host name */
1.84 ! cvs 1636: path = HTCanon (url, path);
1.25 cvs 1637: }
1.84 ! cvs 1638: else if ((path = ustrstr (*url, TEXT(":/"))) != NULL)
1.28 cvs 1639: path += 2;
1640: else
1641: path = *url;
1.25 cvs 1642:
1.84 ! cvs 1643: if (*path == used_sep && *(path+1) == used_sep)
1.28 cvs 1644: /* Some URLs start //<foo> */
1645: path += 1;
1.84 ! cvs 1646: else if (!ustrncmp (path, TEXT("news:"), 5))
1.28 cvs 1647: {
1.84 ! cvs 1648: newptr = ustrchr (path+5, TEXT('@'));
1.28 cvs 1649: if (!newptr)
1650: newptr = path + 5;
1651: while (*newptr)
1652: {
1653: /* Make group or host lower case */
1.84 ! cvs 1654: *newptr = utolower (*newptr);
1.28 cvs 1655: newptr++;
1.25 cvs 1656: }
1.28 cvs 1657: /* Doesn't need to do any more */
1658: return;
1.25 cvs 1659: }
1.28 cvs 1660:
1661: if ((p = path))
1662: {
1.67 cvs 1663: if (!((end = ustrchr (path, TEXT(';'))) || (end = ustrchr (path, TEXT('?'))) ||
1664: (end = ustrchr (path, TEXT('#')))))
1665: end = path + ustrlen (path);
1.28 cvs 1666:
1667: /* Parse string second time to simplify */
1668: p = path;
1669: while (p < end)
1670: {
1.77 cvs 1671: /* if we're pointing to a char, it's safe to reactivate the ../ convertion */
1672: if (!ddot_simplify && *p != TEXT('.') && *p != used_sep)
1673: ddot_simplify = TRUE;
1674:
1.33 cvs 1675: if (*p==used_sep)
1.28 cvs 1676: {
1.67 cvs 1677: if (p > *url && *(p+1) == TEXT('.') && (*(p+2) == used_sep || !*(p+2)))
1.28 cvs 1678: {
1679: orig = p + 1;
1.84 ! cvs 1680: dest = (*(p+2) != used_sep) ? p+2 : p+3;
1.52 cvs 1681: while ((*orig++ = *dest++)); /* Remove a used_sep and a dot*/
1.28 cvs 1682: end = orig - 1;
1683: }
1.77 cvs 1684: else if (ddot_simplify && *(p+1) == TEXT('.') && *(p+2) == TEXT('.')
1685: && (*(p+3) == used_sep || !*(p+3)))
1.28 cvs 1686: {
1687: newptr = p;
1.52 cvs 1688: while (newptr>path && *--newptr!=used_sep); /* prev used_sep */
1689: if (*newptr == used_sep)
1690: orig = newptr + 1;
1.28 cvs 1691: else
1.52 cvs 1692: orig = newptr;
1693:
1694: dest = (*(p+3) != used_sep) ? p+3 : p+4;
1695: while ((*orig++ = *dest++)); /* Remove /xxx/.. */
1696: end = orig-1;
1697: /* Start again with prev slash */
1698: p = newptr;
1.28 cvs 1699: }
1.33 cvs 1700: else if (*(p+1) == used_sep)
1.28 cvs 1701: {
1.33 cvs 1702: while (*(p+1) == used_sep)
1.28 cvs 1703: {
1704: orig = p;
1705: dest = p + 1;
1706: while ((*orig++ = *dest++)); /* Remove multiple /'s */
1707: end = orig-1;
1708: }
1709: }
1710: else
1.25 cvs 1711: p++;
1.28 cvs 1712: }
1713: else
1714: p++;
1.25 cvs 1715: }
1716: }
1.51 cvs 1717:
1718: /*
1719: ** Check for host/../.. kind of things
1720: */
1.77 cvs 1721: if (*path == used_sep && *(path+1) == TEXT('.') && *(path+2) == TEXT('.')
1722: && (!*(path+3) || *(path+3) == used_sep))
1.51 cvs 1723: *(path+1) = EOS;
1724:
1.28 cvs 1725: return;
1726: }
1727:
1728:
1729: /*----------------------------------------------------------------------
1730: NormalizeFile normalizes local names.
1731: Return TRUE if target and src differ.
1732: ----------------------------------------------------------------------*/
1733: #ifdef __STDC__
1.84 ! cvs 1734: ThotBool NormalizeFile (CHAR_T* src, CHAR_T* target)
1.28 cvs 1735: #else
1.67 cvs 1736: ThotBool NormalizeFile (src, target)
1.84 ! cvs 1737: CHAR_T* src;
! 1738: CHAR_T* target;
1.28 cvs 1739:
1740: #endif
1741: {
1.84 ! cvs 1742: CHAR_T* s;
1.82 cvs 1743: ThotBool change;
1.28 cvs 1744:
1.54 cvs 1745: change = FALSE;
1.84 ! cvs 1746: if (ustrncmp (src, TEXT("file:"), 5) == 0)
1.28 cvs 1747: {
1748: /* remove the prefix file: */
1.84 ! cvs 1749: if (src[5] == WC_EOS)
! 1750: ustrcpy (target, WC_DIR_STR);
! 1751: else if (src[0] == TEXT('~'))
1.28 cvs 1752: {
1753: /* replace ~ */
1.74 cvs 1754: s = TtaGetEnvString ("HOME");
1.84 ! cvs 1755: ustrcpy (target, s);
! 1756: ustrcat (target, &src[5]);
1.28 cvs 1757: }
1758: else
1.84 ! cvs 1759: ustrcpy (target, &src[5]);
1.54 cvs 1760: change = TRUE;
1.28 cvs 1761: }
1.53 cvs 1762: # ifndef _WINDOWS
1.84 ! cvs 1763: else if (src[0] == TEXT('~'))
1.53 cvs 1764: {
1765: /* replace ~ */
1.82 cvs 1766: s = TtaGetEnvString ("HOME");
1.84 ! cvs 1767: ustrcpy (target, s);
! 1768: if (src[1] != WC_DIR_SEP)
! 1769: ustrcat (target, WC_DIR_STR);
! 1770: ustrcat (target, &src[1]);
1.54 cvs 1771: change = TRUE;
1.53 cvs 1772: }
1773: # endif /* _WINDOWS */
1.28 cvs 1774: else
1.84 ! cvs 1775: ustrcpy (target, src);
1.28 cvs 1776:
1777: /* remove /../ and /./ */
1.29 cvs 1778: SimplifyUrl (&target);
1.54 cvs 1779: if (!change)
1.84 ! cvs 1780: change = ustrcmp (src, target);
1.28 cvs 1781: return (change);
1.25 cvs 1782: }
1783:
1.28 cvs 1784:
1.25 cvs 1785: /*----------------------------------------------------------------------
1.31 cvs 1786: MakeRelativeURL: make relative name
1.25 cvs 1787:
1.28 cvs 1788: This function creates and returns a string which gives an expression of
1789: one address as related to another. Where there is no relation, an absolute
1790: address is retured.
1.25 cvs 1791:
1.28 cvs 1792: On entry,
1.25 cvs 1793: Both names must be absolute, fully qualified names of nodes
1794: (no fragment bits)
1795:
1.28 cvs 1796: On exit,
1.25 cvs 1797: The return result points to a newly allocated name which, if
1798: parsed by AmayaParseUrl relative to relatedName, will yield aName.
1799: The caller is responsible for freeing the resulting name later.
1800: ----------------------------------------------------------------------*/
1801: #ifdef __STDC__
1.67 cvs 1802: STRING MakeRelativeURL (STRING aName, STRING relatedName)
1.25 cvs 1803: #else /* __STDC__ */
1.67 cvs 1804: STRING MakeRelativeURL (aName, relatedName)
1805: STRING aName;
1806: STRING relatedName;
1.25 cvs 1807: #endif /* __STDC__ */
1808: {
1.67 cvs 1809: STRING return_value;
1810: CHAR_T result[MAX_LENGTH];
1811: STRING p;
1812: STRING q;
1813: STRING after_access;
1814: STRING last_slash = NULL;
1.29 cvs 1815: int slashes, levels, len;
1816:
1.44 cvs 1817: # ifdef _WINDOWS
1818: int ndx;
1819: # endif /* _WINDOWS */
1820:
1.29 cvs 1821: if (aName == NULL || relatedName == NULL)
1822: return (NULL);
1823:
1824: slashes = 0;
1825: after_access = NULL;
1826: p = aName;
1827: q = relatedName;
1828: for (; *p && (*p == *q); p++, q++)
1.27 cvs 1829: {
1830: /* Find extent of match */
1.67 cvs 1831: if (*p == TEXT(':'))
1.29 cvs 1832: after_access = p + 1;
1.28 cvs 1833: if (*p == DIR_SEP)
1.27 cvs 1834: {
1.29 cvs 1835: /* memorize the last slash position and count them */
1.27 cvs 1836: last_slash = p;
1837: slashes++;
1.25 cvs 1838: }
1839: }
1840:
1.31 cvs 1841: /* q, p point to the first non-matching character or zero */
1842: if (*q == EOS)
1843: {
1844: /* New name is a subset of the related name */
1845: /* exactly the right length */
1.67 cvs 1846: len = ustrlen (p);
1847: if ((return_value = TtaAllocString (len + 1)) != NULL)
1848: ustrcpy (return_value, p);
1.31 cvs 1849: }
1850: else if ((slashes < 2 && after_access == NULL)
1851: || (slashes < 3 && after_access != NULL))
1852: {
1853: /* Two names whitout common path */
1854: /* exactly the right length */
1.67 cvs 1855: len = ustrlen (aName);
1856: if ((return_value = TtaAllocString (len + 1)) != NULL)
1857: ustrcpy (return_value, aName);
1.31 cvs 1858: }
1859: else
1860: {
1861: /* Some path in common */
1.67 cvs 1862: if (slashes == 3 && ustrncmp (aName, TEXT("http:"), 5) == 0)
1.31 cvs 1863: /* just the same server */
1.67 cvs 1864: ustrcpy (result, last_slash);
1.31 cvs 1865: else
1866: {
1867: levels= 0;
1.67 cvs 1868: for (; *q && *q != TEXT('#') && *q != TEXT(';') && *q != TEXT('?'); q++)
1.31 cvs 1869: if (*q == DIR_SEP)
1870: levels++;
1871:
1.52 cvs 1872: result[0] = EOS;
1.31 cvs 1873: for (;levels; levels--)
1.67 cvs 1874: ustrcat (result, TEXT("../"));
1875: ustrcat (result, last_slash+1);
1.31 cvs 1876: }
1.52 cvs 1877:
1878: if (!*result)
1.67 cvs 1879: ustrcat (result, TEXT("./"));
1.52 cvs 1880:
1.31 cvs 1881: /* exactly the right length */
1.67 cvs 1882: len = ustrlen (result);
1883: if ((return_value = TtaAllocString (len + 1)) != NULL)
1884: ustrcpy (return_value, result);
1.52 cvs 1885:
1.25 cvs 1886: }
1.44 cvs 1887: # ifdef _WINDOWS
1.67 cvs 1888: len = ustrlen (return_value);
1.44 cvs 1889: for (ndx = 0; ndx < len; ndx ++)
1.67 cvs 1890: if (return_value[ndx] == TEXT('\\'))
1891: return_value[ndx] = TEXT('/') ;
1.44 cvs 1892: # endif /* _WINDOWS */
1.29 cvs 1893: return (return_value);
1.24 cvs 1894: }
1.35 cvs 1895:
1896:
Webmaster
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to AHTURLTools.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Public] / Amaya / amaya