Annotation of Amaya/amaya/AHTURLTools.c, revision 1.97
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
1.87 cvs 14: * R. Guetari: Windows & Unicode.
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;
1.93 cvs 47:
1.28 cvs 48: if (!string)
49: return;
50:
1.87 cvs 51: for (i = 0; string[i] != WC_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: /*----------------------------------------------------------------------
1.96 cvs 73: UnEscapeChar
74: writes the equivalent hex code to a %xx coded char
75: ----------------------------------------------------------------------*/
76: #ifdef __STDC__
77: static CHAR_T UnEscapeChar (CHAR_T c)
78: #else
79: static CHAR_T UnEscapeChar (c)
80: CHAR_T c;
81: #endif
82: {
83: return c >= TEXT('0') && c <= TEXT('9') ? c - TEXT('0')
84: : c >= TEXT('A') && c <= TEXT('F') ? c - TEXT('A') + 10
85: : c - TEXT('a') + 10; /* accept small letters just in case */
86: }
87:
88: /*----------------------------------------------------------------------
1.75 cvs 89: EscapeURL
90: Takes a URL and escapes all protected chars into
91: %xx sequences. Also, removes any leading white spaces
92: Returns either NULL or a new buffer, which must be freed by the caller
93: ----------------------------------------------------------------------*/
94: #ifdef __STDC__
95: STRING EscapeURL (const STRING url)
96: #else
97: STRING EscapeURL (url)
98: STRING url;
99: #endif /* __STDC__ */
100: {
101: STRING buffer;
102: int buffer_len;
103: int buffer_free_mem;
104: PCHAR_T ptr;
105: int new_chars;
106: void *status;
107:
108: if (url && *url)
109: {
1.76 cvs 110: buffer_free_mem = ustrlen (url) + 20;
111: buffer = TtaAllocString (buffer_free_mem + 1);
1.75 cvs 112: ptr = url;
113: buffer_len = 0;
114:
115: while (*ptr)
116: {
117: switch (*ptr)
118: {
119: /* put here below all the chars that need to
120: be escaped into %xx */
1.81 cvs 121: case 0x27: /* & */
122: case 0x20: /* space */
1.75 cvs 123: new_chars = 3;
124: break;
125:
126: default:
127: new_chars = 1;
128: break;
129: }
130:
131: /* see if we need extra room in the buffer */
132: if (new_chars > buffer_free_mem)
133: {
1.76 cvs 134: buffer_free_mem = 20;
1.75 cvs 135: status = TtaRealloc (buffer, sizeof (CHAR_T)
136: * (buffer_len + buffer_free_mem + 1));
137: if (status)
138: buffer = (STRING) status;
139: else {
140: /* @@ maybe we should do some other behavior here, like
141: freeing the buffer and return a void thing */
1.87 cvs 142: buffer[buffer_len] = WC_EOS;
1.75 cvs 143: break;
144: }
145: }
146: /* escape the char */
147: if (new_chars == 3)
148: {
149: buffer[buffer_len] = TEXT('%');
150: EscapeChar (&buffer[buffer_len+1], *ptr);
151: }
152: else
153: buffer[buffer_len] = *ptr;
154:
155: /* update the status */
156: buffer_len += new_chars;
157: buffer_free_mem -= new_chars;
158: /* examine the next char */
159: ptr++;
160: }
1.87 cvs 161: buffer[buffer_len] = WC_EOS;
1.75 cvs 162: }
1.76 cvs 163: else
164: buffer = NULL;
165:
1.75 cvs 166: return (buffer);
167: }
168:
169:
170: /*----------------------------------------------------------------------
1.11 cvs 171: ExplodeURL
1.8 cvs 172: ----------------------------------------------------------------------*/
173: #ifdef __STDC__
174: void ExplodeURL (char *url, char **proto, char **host, char **dir, char **file)
175: #else
176: void ExplodeURL (url, proto, host, dir, file)
177: char *url;
178: char **proto;
179: char **host;
180: char **dir;
181: char **file;
182:
183: #endif
184: {
1.33 cvs 185: char *curr, *temp;
186: char used_sep;
1.32 cvs 187:
1.33 cvs 188: if (url && strchr (url, URL_SEP))
189: used_sep = URL_SEP;
190: else
191: used_sep = DIR_SEP;
1.8 cvs 192:
193: if ((url == NULL) || (proto == NULL) || (host == NULL) ||
194: (dir == NULL) || (file == NULL))
195: return;
196:
197: /* initialize every pointer */
198: *proto = *host = *dir = *file = NULL;
199:
200: /* skip any leading space */
201: while ((*url == SPACE) || (*url == TAB))
202: url++;
1.9 cvs 203: curr = url;
204: if (*curr == 0)
1.8 cvs 205: goto finished;
206:
207: /* go to the end of the URL */
1.68 cvs 208: while ((*curr != EOS) && (*curr != SPACE) && (*curr != BSPACE) &&
209: (*curr != __CR__) && (*curr != EOL))
1.9 cvs 210: curr++;
1.8 cvs 211:
212: /* mark the end of the chain */
1.9 cvs 213: *curr = EOS;
214: curr--;
215: if (curr <= url)
1.8 cvs 216: goto finished;
217:
218: /* search the next DIR_SEP indicating the beginning of the file name */
219: do
1.11 cvs 220: curr--;
1.33 cvs 221: while ((curr >= url) && (*curr != used_sep));
1.11 cvs 222:
1.9 cvs 223: if (curr < url)
1.8 cvs 224: goto finished;
1.9 cvs 225: *file = curr + 1;
1.8 cvs 226:
227: /* mark the end of the dir */
1.9 cvs 228: *curr = EOS;
229: curr--;
230: if (curr < url)
1.8 cvs 231: goto finished;
232:
1.29 cvs 233: /* search for the DIR_STR indicating the host name start */
1.33 cvs 234: while ((curr > url) && ((*curr != used_sep) || (*(curr + 1) != used_sep)))
1.9 cvs 235: curr--;
1.8 cvs 236:
237: /* if we found it, separate the host name from the directory */
1.33 cvs 238: if ((*curr == DIR_SEP) && (*(curr + 1) == used_sep))
1.8 cvs 239: {
1.9 cvs 240: *host = temp = curr + 2;
1.33 cvs 241: while ((*temp != 0) && (*temp != used_sep))
1.8 cvs 242: temp++;
1.33 cvs 243: if (*temp == used_sep)
1.8 cvs 244: {
245: *temp = EOS;
246: *dir = temp + 1;
247: }
248: }
249: else
1.11 cvs 250: *dir = curr;
251:
1.9 cvs 252: if (curr <= url)
1.8 cvs 253: goto finished;
254:
255: /* mark the end of the proto */
1.9 cvs 256: *curr = EOS;
257: curr--;
258: if (curr < url)
1.8 cvs 259: goto finished;
260:
1.67 cvs 261: if (*curr == TEXT(':'))
1.8 cvs 262: {
1.9 cvs 263: *curr = EOS;
264: curr--;
1.8 cvs 265: }
266: else
267: goto finished;
1.11 cvs 268:
1.9 cvs 269: if (curr < url)
1.8 cvs 270: goto finished;
1.9 cvs 271: while ((curr > url) && (isalpha (*curr)))
272: curr--;
273: *proto = curr;
1.8 cvs 274:
275: finished:;
276:
277: #ifdef AMAYA_DEBUG
278: fprintf (stderr, "ExplodeURL(%s)\n\t", url);
279: if (*proto)
280: fprintf (stderr, "proto : %s, ", *proto);
281: if (*host)
282: fprintf (stderr, "host : %s, ", *host);
283: if (*dir)
284: fprintf (stderr, "dir : %s, ", *dir);
285: if (*file)
286: fprintf (stderr, "file : %s ", *file);
287: fprintf (stderr, "\n");
288: #endif
289:
290: }
1.3 cvs 291:
1.61 cvs 292:
293: /*----------------------------------------------------------------------
294: ExtractSuffix extract suffix from document nane.
295: ----------------------------------------------------------------------*/
296: #ifdef __STDC__
1.91 cvs 297: void ExtractSuffix (CHAR_T* aName, CHAR_T* aSuffix)
1.61 cvs 298: #else
299: void ExtractSuffix (aName, aSuffix)
1.91 cvs 300: CHAR_T* aName;
301: CHAR_T* aSuffix;
1.61 cvs 302:
303: #endif
304: {
305: int lg, i;
306: STRING ptr, oldptr;
307:
308: if (!aSuffix || !aName)
309: /* bad suffix */
310: return;
311:
1.87 cvs 312: aSuffix[0] = WC_EOS;
1.61 cvs 313: lg = ustrlen (aName);
314: if (lg)
315: {
316: /* the name is not empty */
317: oldptr = ptr = &aName[0];
318: do
319: {
1.67 cvs 320: ptr = ustrrchr (oldptr, TEXT('.'));
1.61 cvs 321: if (ptr)
322: oldptr = &ptr[1];
323: }
324: while (ptr);
325:
326: i = (int) (oldptr) - (int) (aName); /* name length */
327: if (i > 1)
328: {
1.87 cvs 329: aName[i - 1] = WC_EOS;
1.61 cvs 330: if (i != lg)
331: ustrcpy (aSuffix, oldptr);
332: }
333: }
334: }
335:
1.4 cvs 336: /*----------------------------------------------------------------------
1.9 cvs 337: IsHTMLName
338: returns TRUE if path points to an HTML resource.
1.4 cvs 339: ----------------------------------------------------------------------*/
1.3 cvs 340: #ifdef __STDC__
1.84 cvs 341: ThotBool IsHTMLName (const CHAR_T* path)
1.3 cvs 342: #else /* __STDC__ */
1.67 cvs 343: ThotBool IsHTMLName (path)
1.84 cvs 344: const CHAR_T* path;
1.3 cvs 345: #endif /* __STDC__ */
346: {
1.84 cvs 347: CHAR_T temppath[MAX_LENGTH];
348: CHAR_T suffix[MAX_LENGTH];
349: CHAR_T nsuffix[MAX_LENGTH];
350: int i;
1.5 cvs 351:
352: if (!path)
1.37 cvs 353: return (FALSE);
1.5 cvs 354:
1.84 cvs 355: ustrcpy (temppath, path);
1.5 cvs 356: ExtractSuffix (temppath, suffix);
1.91 cvs 357: /* while (suffix[0] != WC_EOS) { */
358: i = 0;
359: while (suffix[i] != WC_EOS) {
360: /* Normalize the suffix */
361: i = 0;
362: while (suffix[i] != WC_EOS && i < MAX_LENGTH -1) {
363: nsuffix[i] = utolower (suffix[i]);
364: i++;
365: }
366: nsuffix[i] = WC_EOS;
367: if (!ustrcmp (nsuffix, TEXT("html")) ||
368: !ustrcmp (nsuffix, TEXT("htm")) ||
369: !ustrcmp (nsuffix, TEXT("shtml")) ||
370: !ustrcmp (nsuffix, TEXT("jsp")) ||
371: !ustrcmp (nsuffix, TEXT("xht")) ||
372: !ustrcmp (nsuffix, TEXT("xhtm")) ||
373: !ustrcmp (nsuffix, TEXT("xhtml")))
374: return (TRUE);
375: else if (!ustrcmp (nsuffix, TEXT("gz"))) {
376: /* take into account compressed files */
377: ExtractSuffix (temppath, suffix);
378: /* Normalize the suffix */
379: i = 0;
380: while (suffix[i] != WC_EOS && i < MAX_LENGTH -1) {
381: nsuffix[i] = utolower (suffix[i]);
382: i++;
383: }
384: nsuffix[i] = WC_EOS;
385: if (!ustrcmp (nsuffix, TEXT("html")) ||
386: !ustrcmp (nsuffix, TEXT("htm")) ||
387: !ustrcmp (nsuffix, TEXT("shtml")) ||
388: !ustrcmp (nsuffix, TEXT("jsp")) ||
389: !ustrcmp (nsuffix, TEXT("xht")) ||
390: !ustrcmp (nsuffix, TEXT("xhtm")) ||
391: !ustrcmp (nsuffix, TEXT("xhtml")))
392: return (TRUE);
393: else
394: return (FALSE);
395: } else
396: /* check if there is another suffix */
397: ExtractSuffix (temppath, suffix);
398: }
1.88 cvs 399:
400: return (FALSE);
1.3 cvs 401: }
402:
1.4 cvs 403: /*----------------------------------------------------------------------
1.56 cvs 404: IsXMLName
405: returns TRUE if path points to an XML resource.
406: ----------------------------------------------------------------------*/
407: #ifdef __STDC__
1.67 cvs 408: ThotBool IsXMLName (const STRING path)
1.56 cvs 409: #else /* __STDC__ */
1.67 cvs 410: ThotBool IsXMLName (path)
411: const STRING path;
1.56 cvs 412: #endif /* __STDC__ */
413: {
1.67 cvs 414: CHAR_T temppath[MAX_LENGTH];
415: CHAR_T suffix[MAX_LENGTH];
1.56 cvs 416:
417: if (!path)
418: return (FALSE);
419:
1.67 cvs 420: ustrcpy (temppath, path);
1.56 cvs 421: ExtractSuffix (temppath, suffix);
422:
1.67 cvs 423: if (!ustrcasecmp (suffix, TEXT("xml")) ||
424: !ustrcasecmp (suffix, TEXT("xht")) ||
425: !ustrcmp (suffix, TEXT("xhtm")) ||
426: !ustrcmp (suffix, TEXT("xhtml")))
1.56 cvs 427: return (TRUE);
1.67 cvs 428: else if (!ustrcmp (suffix, TEXT("gz")))
1.56 cvs 429: {
430: /* take into account compressed files */
431: ExtractSuffix (temppath, suffix);
1.67 cvs 432: if (!ustrcasecmp (suffix, TEXT("xml")) ||
433: !ustrcasecmp (suffix, TEXT("xht")) ||
434: !ustrcmp (suffix, TEXT("xhtm")) ||
435: !ustrcmp (suffix, TEXT("xhtml")))
1.60 cvs 436: return (TRUE);
437: else
438: return (FALSE);
439: }
440: else
441: return (FALSE);
442: }
443:
444: /*----------------------------------------------------------------------
445: IsCSSName
446: returns TRUE if path points to an XML resource.
447: ----------------------------------------------------------------------*/
448: #ifdef __STDC__
1.67 cvs 449: ThotBool IsCSSName (const STRING path)
1.60 cvs 450: #else /* __STDC__ */
1.67 cvs 451: ThotBool IsCSSName (path)
452: const STRING path;
1.60 cvs 453: #endif /* __STDC__ */
454: {
1.67 cvs 455: CHAR_T temppath[MAX_LENGTH];
456: CHAR_T suffix[MAX_LENGTH];
1.60 cvs 457:
458: if (!path)
459: return (FALSE);
460:
1.67 cvs 461: ustrcpy (temppath, path);
1.60 cvs 462: ExtractSuffix (temppath, suffix);
463:
1.67 cvs 464: if (!ustrcasecmp (suffix, TEXT("css")))
1.60 cvs 465: return (TRUE);
1.67 cvs 466: else if (!ustrcmp (suffix, TEXT("gz")))
1.60 cvs 467: {
468: /* take into account compressed files */
469: ExtractSuffix (temppath, suffix);
1.67 cvs 470: if (!ustrcasecmp (suffix, TEXT("css")))
1.56 cvs 471: return (TRUE);
472: else
473: return (FALSE);
474: }
475: else
476: return (FALSE);
477: }
478:
479: /*----------------------------------------------------------------------
1.9 cvs 480: IsImageName
481: returns TRUE if path points to an image resource.
1.4 cvs 482: ----------------------------------------------------------------------*/
1.3 cvs 483: #ifdef __STDC__
1.67 cvs 484: ThotBool IsImageName (const STRING path)
1.3 cvs 485: #else /* __STDC__ */
1.67 cvs 486: ThotBool IsImageName (path)
487: const STRING path;
1.3 cvs 488: #endif /* __STDC__ */
489: {
1.67 cvs 490: CHAR_T temppath[MAX_LENGTH];
491: CHAR_T suffix[MAX_LENGTH];
492: CHAR_T nsuffix[MAX_LENGTH];
1.5 cvs 493: int i;
494:
495: if (!path)
1.13 cvs 496: return (FALSE);
1.5 cvs 497:
1.67 cvs 498: ustrcpy (temppath, path);
1.5 cvs 499: ExtractSuffix (temppath, suffix);
500:
501: /* Normalize the suffix */
502: i = 0;
1.87 cvs 503: while (suffix[i] != WC_EOS && i < MAX_LENGTH -1)
1.13 cvs 504: {
1.67 cvs 505: nsuffix[i] = utolower (suffix[i]);
1.13 cvs 506: i++;
507: }
1.87 cvs 508: nsuffix[i] = WC_EOS;
1.67 cvs 509: if ((!ustrcmp (nsuffix, TEXT("gif"))) || (!ustrcmp (nsuffix, TEXT("xbm"))) ||
510: (!ustrcmp (nsuffix, TEXT("xpm"))) || (!ustrcmp (nsuffix, TEXT("jpg"))) ||
511: (!ustrcmp (nsuffix, TEXT("png"))) || (!ustrcmp (nsuffix, TEXT("au"))))
1.39 cvs 512: return (TRUE);
513: return (FALSE);
1.3 cvs 514: }
515:
1.4 cvs 516: /*----------------------------------------------------------------------
1.58 cvs 517: IsImageType
518: returns TRUE if type points to an image resource.
519: ----------------------------------------------------------------------*/
520: #ifdef __STDC__
1.67 cvs 521: ThotBool IsImageType (const STRING type)
1.58 cvs 522: #else /* __STDC__ */
1.67 cvs 523: ThotBool IsImageType (type)
524: const STRING type;
1.58 cvs 525: #endif /* __STDC__ */
526: {
1.67 cvs 527: CHAR_T temptype[MAX_LENGTH];
1.58 cvs 528: int i;
529:
530: if (!type)
531: return (FALSE);
532:
1.67 cvs 533: ustrcpy (temptype, type);
1.58 cvs 534: /* Normalize the type */
535: i = 0;
1.87 cvs 536: while (temptype[i] != WC_EOS)
1.58 cvs 537: {
538: temptype[i] = tolower (temptype[i]);
539: i++;
540: }
1.67 cvs 541: if ((!ustrcmp (temptype, TEXT("gif"))) || (!ustrcmp (temptype, TEXT("x-xbitmap"))) ||
542: (!ustrcmp (temptype, TEXT("x-xpixmap"))) || (!ustrcmp (temptype, TEXT("jpeg"))) ||
543: (!ustrcmp (temptype, TEXT("png"))))
1.58 cvs 544: return (TRUE);
545: return (FALSE);
546: }
547:
548: /*----------------------------------------------------------------------
1.9 cvs 549: IsTextName
1.4 cvs 550: ----------------------------------------------------------------------*/
1.3 cvs 551: #ifdef __STDC__
1.67 cvs 552: ThotBool IsTextName (const STRING path)
1.3 cvs 553: #else /* __STDC__ */
1.67 cvs 554: ThotBool IsTextName (path)
555: const STRING path;
1.3 cvs 556:
557: #endif /* __STDC__ */
558: {
1.67 cvs 559: CHAR_T temppath[MAX_LENGTH];
560: CHAR_T suffix[MAX_LENGTH];
561: CHAR_T nsuffix[MAX_LENGTH];
1.5 cvs 562: int i;
563:
564: if (!path)
1.13 cvs 565: return (FALSE);
1.5 cvs 566:
1.67 cvs 567: ustrcpy (temppath, path);
1.5 cvs 568: ExtractSuffix (temppath, suffix);
569:
570: /* Normalize the suffix */
571: i = 0;
1.87 cvs 572: while (suffix[i] != WC_EOS && i < MAX_LENGTH -1)
1.5 cvs 573: {
1.25 cvs 574: nsuffix[i] = tolower (suffix[i]);
1.5 cvs 575: i++;
576: }
1.87 cvs 577: nsuffix[i] = WC_EOS;
1.5 cvs 578:
1.67 cvs 579: if ((!ustrcmp (nsuffix, TEXT("txt"))) || (!ustrcmp (nsuffix, TEXT("dtd"))))
1.13 cvs 580: return (TRUE);
1.67 cvs 581: else if (!ustrcmp (nsuffix, TEXT("gz")))
1.13 cvs 582: {
1.39 cvs 583: /* take into account compressed files */
1.13 cvs 584: ExtractSuffix (temppath, suffix);
585: /* Normalize the suffix */
586: i = 0;
1.87 cvs 587: while (suffix[i] != WC_EOS && i < MAX_LENGTH -1)
1.13 cvs 588: {
1.25 cvs 589: nsuffix[i] = tolower (suffix[i]);
1.13 cvs 590: i++;
591: }
1.87 cvs 592: nsuffix[i] = WC_EOS;
1.67 cvs 593: if ((!ustrcmp (nsuffix, TEXT("txt"))) || (!ustrcmp (nsuffix, TEXT("dtd"))))
1.13 cvs 594: return (TRUE);
595: else
596: return (FALSE);
597: }
598: else
599: return (FALSE);
1.3 cvs 600: }
601:
1.4 cvs 602: /*----------------------------------------------------------------------
1.9 cvs 603: IsHTTPPath
604: returns TRUE if path is in fact an http URL.
1.4 cvs 605: ----------------------------------------------------------------------*/
1.3 cvs 606: #ifdef __STDC__
1.67 cvs 607: ThotBool IsHTTPPath (const STRING path)
1.3 cvs 608: #else /* __STDC__ */
1.67 cvs 609: ThotBool IsHTTPPath (path)
610: const STRING path;
1.3 cvs 611: #endif /* __STDC__ */
612: {
1.5 cvs 613: if (!path)
614: return FALSE;
1.3 cvs 615:
1.67 cvs 616: if ((!ustrncmp (path, TEXT("http:"), 5) != 0)
617: || !ustrncmp (path, TEXT("internal:"), 9))
1.58 cvs 618: return TRUE;
619: return FALSE;
1.3 cvs 620: }
621:
1.4 cvs 622: /*----------------------------------------------------------------------
1.9 cvs 623: IsWithParameters
624: returns TRUE if url has a concatenated query string.
1.4 cvs 625: ----------------------------------------------------------------------*/
1.3 cvs 626: #ifdef __STDC__
1.66 cvs 627: ThotBool IsWithParameters (const char *url)
1.3 cvs 628: #else /* __STDC__ */
1.66 cvs 629: ThotBool IsWithParameters (url)
1.34 cvs 630: const char *url;
1.3 cvs 631: #endif /* __STDC__ */
632: {
1.5 cvs 633: int i;
1.3 cvs 634:
1.9 cvs 635: if ((!url) || (url[0] == EOS))
1.5 cvs 636: return FALSE;
1.3 cvs 637:
1.9 cvs 638: i = strlen (url) - 1;
639: while (i > 0 && url[i--] != '?')
1.5 cvs 640: if (i < 0)
641: return FALSE;
1.3 cvs 642:
1.5 cvs 643: /* There is a parameter */
644: return TRUE;
1.3 cvs 645: }
646:
1.4 cvs 647: /*----------------------------------------------------------------------
1.9 cvs 648: IsW3Path
649: returns TRUE if path is in fact a URL.
1.4 cvs 650: ----------------------------------------------------------------------*/
1.3 cvs 651: #ifdef __STDC__
1.84 cvs 652: ThotBool IsW3Path (const CHAR_T* path)
1.3 cvs 653: #else /* __STDC__ */
1.67 cvs 654: ThotBool IsW3Path (path)
1.84 cvs 655: const CHAR_T* path;
1.3 cvs 656: #endif /* __STDC__ */
657: {
1.84 cvs 658: if (ustrncmp (path, TEXT("http:"), 5) &&
659: ustrncmp (path, TEXT("ftp:"), 4) &&
660: ustrncmp (path, TEXT("telnet:"), 7) &&
661: ustrncmp (path, TEXT("wais:"), 5) &&
662: ustrncmp (path, TEXT("news:"), 5) &&
663: ustrncmp (path, TEXT("gopher:"), 7) &&
664: ustrncmp (path, TEXT("mailto:"), 7) &&
665: ustrncmp (path, TEXT("archie:"), 7))
1.72 cvs 666: return FALSE;
667: return TRUE;
1.3 cvs 668: }
669:
1.4 cvs 670: /*----------------------------------------------------------------------
1.90 cvs 671: IsFilePath
672: returns TRUE if path is in fact a URL.
673: ----------------------------------------------------------------------*/
674: #ifdef __STDC__
675: static ThotBool IsFilePath (const CHAR_T* path)
676: #else /* __STDC__ */
677: static ThotBool IsFilePath (path)
678: const CHAR_T* path;
679: #endif /* __STDC__ */
680: {
681: if (ustrncmp (path, TEXT("file:"), 5))
682: return FALSE;
683: return TRUE;
684: }
685:
686: /*----------------------------------------------------------------------
1.9 cvs 687: IsValidProtocol
688: returns true if the url protocol is supported by Amaya.
1.4 cvs 689: ----------------------------------------------------------------------*/
1.3 cvs 690: #ifdef __STDC__
1.67 cvs 691: ThotBool IsValidProtocol (const STRING url)
1.3 cvs 692: #else /* __STDC__ */
1.67 cvs 693: ThotBool IsValidProtocol (url)
694: const STRING url;
1.3 cvs 695: #endif /* __STDC__ */
696: {
1.67 cvs 697: if (!ustrncmp (url, TEXT("http:"), 5)
1.69 cvs 698: || !ustrncmp (url, TEXT("internal:"), 9)
1.70 cvs 699: || !ustrncmp (url, TEXT("ftp:"), 4))
1.22 cvs 700: /* experimental */
1.58 cvs 701: /*** || !strncmp (url, "ftp:", 4) ***/
1.24 cvs 702: /*** || !strncmp (path, "news:", 5)***/
1.8 cvs 703: return (TRUE);
1.5 cvs 704: else
1.8 cvs 705: return (FALSE);
1.3 cvs 706: }
707:
1.31 cvs 708:
709: /*----------------------------------------------------------------------
710: GetBaseURL
711: normalizes orgName according to a base associated with doc, and
712: following the standard URL format rules.
713: The function returns the base used to solve relative URL and SRC:
714: - the base of the document,
715: - or the document path (without document name).
716: ----------------------------------------------------------------------*/
717: #ifdef __STDC__
1.84 cvs 718: CHAR_T* GetBaseURL (Document doc)
1.31 cvs 719: #else /* __STDC__ */
1.84 cvs 720: CHAR_T* GetBaseURL (doc)
1.31 cvs 721: Document doc;
722: #endif /* __STDC__ */
723: {
724: Element el;
725: ElementType elType;
726: AttributeType attrType;
727: Attribute attr;
1.84 cvs 728: CHAR_T *ptr, *basename;
1.31 cvs 729: int length;
730:
1.57 cvs 731: /* @@@ irene */
732: if (!DocumentURLs[doc])
733: return NULL;
1.67 cvs 734: basename = TtaAllocString (MAX_LENGTH);
735: ustrncpy (basename, DocumentURLs[doc], MAX_LENGTH-1);
1.84 cvs 736: basename[MAX_LENGTH-1] = WC_EOS;
1.31 cvs 737: length = MAX_LENGTH -1;
738: /* get the root element */
739: el = TtaGetMainRoot (doc);
740: /* search the BASE element */
741: elType.ElSSchema = TtaGetDocumentSSchema (doc);
1.65 cvs 742: elType.ElTypeNum = HTML_EL_HEAD;
743: el = TtaSearchTypedElement (elType, SearchForward, el);
744: if (el)
745: {
746: elType.ElTypeNum = HTML_EL_BASE;
747: el = TtaSearchTypedElement (elType, SearchInTree, el);
748: }
1.31 cvs 749: if (el)
750: {
751: /* The document has a BASE element -> Get the HREF attribute */
752: attrType.AttrSSchema = elType.ElSSchema;
753: attrType.AttrTypeNum = HTML_ATTR_HREF_;
754: attr = TtaGetAttribute (el, attrType);
755: if (attr)
756: {
757: /* Use the base path of the document */
758: TtaGiveTextAttributeValue (attr, basename, &length);
759: /* base and orgName have to be separated by a DIR_SEP */
760: length--;
1.84 cvs 761: if (basename[0] != WC_EOS && basename[length] != WC_URL_SEP && basename[length] != WC_DIR_SEP)
1.31 cvs 762: /* verify if the base has the form "protocol://server:port" */
763: {
1.84 cvs 764: ptr = AmayaParseUrl (basename, TEXT(""), AMAYA_PARSE_ACCESS |
1.33 cvs 765: AMAYA_PARSE_HOST |
766: AMAYA_PARSE_PUNCTUATION);
1.67 cvs 767: if (ptr && !ustrcmp (ptr, basename))
1.31 cvs 768: {
1.43 cvs 769: /* it has this form, we complete it by adding a URL_STR */
1.84 cvs 770: if (ustrchr (basename, WC_DIR_SEP))
771: ustrcat (basename, WC_DIR_STR);
1.43 cvs 772: else
1.84 cvs 773: ustrcat (basename, WC_URL_STR);
1.31 cvs 774: length++;
775: }
776: if (ptr)
777: TtaFreeMemory (ptr);
778: }
779: }
1.33 cvs 780: }
781:
1.31 cvs 782: /* Remove anything after the last DIR_SEP char. If no such char is found,
783: * then search for the first ":" char, hoping that what's before that is a
784: * protocol. If found, end the string there. If neither char is found,
785: * then discard the whole base element.
786: */
1.67 cvs 787: length = ustrlen (basename) - 1;
1.31 cvs 788: /* search for the last DIR_SEP char */
1.84 cvs 789: while (length >= 0 && basename[length] != WC_URL_SEP && basename[length] != WC_DIR_SEP)
1.31 cvs 790: length--;
791: if (length >= 0)
792: /* found the last DIR_SEP char, end the string there */
1.84 cvs 793: basename[length + 1] = WC_EOS;
1.31 cvs 794: else
795: /* search for the first PATH_STR char */
796: {
1.67 cvs 797: for (length = 0; basename[length] != TEXT(':') &&
1.84 cvs 798: basename[length] != WC_EOS; length ++);
1.67 cvs 799: if (basename[length] == TEXT(':'))
1.31 cvs 800: /* found, so end the string there */
1.84 cvs 801: basename[length + 1] = WC_EOS;
1.31 cvs 802: else
803: /* not found, discard the base */
1.84 cvs 804: basename[0] = WC_EOS;
1.31 cvs 805: }
806: return (basename);
807: }
808:
809:
1.4 cvs 810: /*----------------------------------------------------------------------
1.40 cvs 811: GetLocalPath
812: Allocate and return the local document path associated to the url
813: ----------------------------------------------------------------------*/
814: #ifdef __STDC__
1.84 cvs 815: CHAR_T* GetLocalPath (Document doc, CHAR_T* url)
1.40 cvs 816: #else /* __STDC__ */
1.84 cvs 817: CHAR_T* GetLocalPath (doc, url)
1.40 cvs 818: Document doc;
1.84 cvs 819: CHAR_T* url;
1.40 cvs 820: #endif /* __STDC__ */
821: {
1.84 cvs 822: CHAR_T* ptr;
823: CHAR_T* n;
824: CHAR_T* documentname;
825: CHAR_T url_sep;
1.83 cvs 826: int len;
1.67 cvs 827: ThotBool noFile;
1.40 cvs 828:
829: if (url != NULL)
830: {
831: /* check whether the file name exists */
1.84 cvs 832: len = ustrlen (url) - 1;
1.71 cvs 833: if (IsW3Path (url))
1.84 cvs 834: url_sep = TEXT('/');
1.41 cvs 835: else
1.84 cvs 836: url_sep = WC_DIR_SEP;
1.41 cvs 837: noFile = (url[len] == url_sep);
1.40 cvs 838: if (noFile)
1.84 cvs 839: url[len] = WC_EOS;
840: ptr = TtaAllocString (MAX_LENGTH);
841: documentname = TtaAllocString (MAX_LENGTH);
1.78 cvs 842: TtaExtractName (url, ptr, documentname);
1.84 cvs 843: usprintf (ptr, TEXT("%s%s%d%s"), TempFileDirectory, WC_DIR_STR, doc, WC_DIR_STR);
1.40 cvs 844: if (!TtaCheckDirectory (ptr))
845: /* directory did not exist */
1.72 cvs 846: TtaMakeDirectory (ptr);
1.47 cvs 847:
848: /* don't include the query string within document name */
1.84 cvs 849: n = ustrrchr (documentname, TEXT('?'));
1.47 cvs 850: if (n != NULL)
1.84 cvs 851: *n = WC_EOS;
1.46 cvs 852: /* don't include ':' within document name */
1.84 cvs 853: n = ustrchr (documentname, TEXT(':'));
1.46 cvs 854: if (n != NULL)
1.84 cvs 855: *n = WC_EOS;
1.69 cvs 856: /* if after all this operations document name
857: is empty, let's use noname.html instead */
1.84 cvs 858: if (documentname[0] == WC_EOS)
859: ustrcat (ptr, TEXT("noname.html"));
1.69 cvs 860: else
1.84 cvs 861: ustrcat (ptr, documentname);
1.40 cvs 862: TtaFreeMemory (documentname);
863: /* restore the url */
864: if (noFile)
1.41 cvs 865: url[len] = url_sep;
1.40 cvs 866: return (ptr);
867: }
868: else
869: return (NULL);
870: }
871:
1.73 cvs 872: /*----------------------------------------------------------------------
1.79 cvs 873: ExtractTarget extract the target name from document nane.
874: ----------------------------------------------------------------------*/
875: #ifdef __STDC__
1.84 cvs 876: void ExtractTarget (CHAR_T* aName, CHAR_T* target)
1.79 cvs 877: #else
878: void ExtractTarget (aName, target)
1.84 cvs 879: CHAR_T* aName;
880: CHAR_T* target;
1.79 cvs 881: #endif
882: {
1.82 cvs 883: int lg, i;
1.84 cvs 884: CHAR_T* ptr;
885: CHAR_T* oldptr;
1.79 cvs 886:
887: if (!target || !aName)
888: /* bad target */
889: return;
890:
1.84 cvs 891: target[0] = WC_EOS;
892: lg = ustrlen (aName);
1.79 cvs 893: if (lg)
894: {
895: /* the name is not empty */
896: oldptr = ptr = &aName[0];
897: do
898: {
1.84 cvs 899: ptr = ustrrchr (oldptr, TEXT('#'));
1.79 cvs 900: if (ptr)
901: oldptr = &ptr[1];
902: }
903: while (ptr);
904:
905: i = (int) (oldptr) - (int) (aName); /* name length */
906: if (i > 1)
907: {
1.84 cvs 908: aName[i - 1] = WC_EOS;
1.79 cvs 909: if (i != lg)
1.84 cvs 910: ustrcpy (target, oldptr);
1.79 cvs 911: }
912: }
913: }
914:
915: /*----------------------------------------------------------------------
1.90 cvs 916: RemoveNewLines (text)
917: Removes any '\n' chars that are found in text.
918: Returns TRUE if it did the operation, FALSE otherwise.
1.73 cvs 919: ----------------------------------------------------------------------*/
920: #ifdef __STDC__
1.90 cvs 921: ThotBool RemoveNewLines (CHAR_T *text)
1.73 cvs 922: #else
1.90 cvs 923: ThotBool RemoveNewLines (text)
924: CHAR_T *text;
925:
1.73 cvs 926: #endif /* __STDC__ */
927: {
1.90 cvs 928: ThotBool change = FALSE;
929: CHAR_T *src;
930: CHAR_T *dest;
931:
932: src = text;
933: dest = text;
934:
935: while (*src)
936: {
937: switch (*src)
938: {
939: case TEXT('\n'):
940: /* don't copy the newline */
941: change = 1;
942: break;
943: default:
944: *dest = *src;
945: dest++;
946: break;
947: }
948: src++;
949: }
950: /* copy the last EOS char */
951: *dest = *src;
952:
953: return (change);
954: }
955:
956: /*----------------------------------------------------------------------
957: CleanCopyFileURL
958: Copies a file url from a src string to destination string.
1.97 ! cvs 959: convertion says which type of convertion (none, %xx, URL_SEP into DIR_SEP
! 960: we want to do).
1.90 cvs 961: ----------------------------------------------------------------------*/
962: #ifdef __STDC__
1.97 ! cvs 963: static void CleanCopyFileURL (CHAR_T *dest, CHAR_T *src, ConvertionType convertion)
1.90 cvs 964: #else
1.97 ! cvs 965: static void CleanCopyFileURL (dest, src, convertion)
1.90 cvs 966: CHAR_T* dest;
967: CHAR_T* src;
1.97 ! cvs 968: ConvertionType convertion;
1.89 cvs 969:
1.90 cvs 970: #endif /* __STDC__ */
971: {
972: while (*src)
1.89 cvs 973: {
1.90 cvs 974: switch (*src)
1.89 cvs 975: {
976: #ifdef _WINDOWS
1.90 cvs 977: case WC_URL_SEP:
1.96 cvs 978: /* make DIR_SEP transformation */
1.97 ! cvs 979: if (convertion & AM_CONV_URL_SEP)
1.96 cvs 980: *dest = WC_DIR_SEP;
981: else
982: *dest = *src;
1.90 cvs 983: dest++;
1.96 cvs 984: src++;
1.90 cvs 985: break;
1.89 cvs 986: #endif /* _WINDOWS */
1.96 cvs 987:
988: case TEXT('%'):
1.97 ! cvs 989: if (convertion & AM_CONV_PERCENT)
1.96 cvs 990: {
1.97 ! cvs 991: /* (code adapted from libwww's HTUnEscape function */
1.96 cvs 992: src++;
1.97 ! cvs 993: if (*src != WC_EOS)
! 994: {
! 995: *dest = UnEscapeChar (*src) * 16;
! 996: src++;
! 997: }
! 998: if (*src != WC_EOS)
! 999: {
! 1000: *dest = *dest + UnEscapeChar (*src);
! 1001: src++;
! 1002: }
! 1003: dest++;
1.96 cvs 1004: }
1.97 ! cvs 1005: else
1.96 cvs 1006: {
1.97 ! cvs 1007: *dest = *src;
! 1008: dest++;
1.96 cvs 1009: src++;
1010: }
1011: break;
1012:
1.90 cvs 1013: default:
1014: *dest = *src;
1.89 cvs 1015: dest++;
1.96 cvs 1016: src++;
1.90 cvs 1017: break;
1.89 cvs 1018: }
1019: }
1.90 cvs 1020: /* copy the EOS char */
1021: *dest = *src;
1.73 cvs 1022: }
1.40 cvs 1023:
1024: /*----------------------------------------------------------------------
1.9 cvs 1025: NormalizeURL
1026: normalizes orgName according to a base associated with doc, and
1027: following the standard URL format rules.
1.53 cvs 1028: if doc is 0 and otherPath not NULL, normalizes orgName according to this
1029: other path.
1.9 cvs 1030: The function returns the new complete and normalized URL
1.12 cvs 1031: or file name path (newName) and the name of the document (docName).
1.9 cvs 1032: N.B. If the function can't find out what's the docName, it assigns
1033: the name "noname.html".
1.4 cvs 1034: ----------------------------------------------------------------------*/
1.3 cvs 1035: #ifdef __STDC__
1.84 cvs 1036: void NormalizeURL (CHAR_T* orgName, Document doc, CHAR_T* newName, CHAR_T* docName, CHAR_T* otherPath)
1.3 cvs 1037: #else /* __STDC__ */
1.53 cvs 1038: void NormalizeURL (orgName, doc, newName, docName, otherPath)
1.84 cvs 1039: CHAR_T* orgName;
1.3 cvs 1040: Document doc;
1.84 cvs 1041: CHAR_T* newName;
1042: CHAR_T* docName;
1043: CHAR_T* otherPath;
1.3 cvs 1044: #endif /* __STDC__ */
1045: {
1.84 cvs 1046: CHAR_T* basename;
1047: CHAR_T tempOrgName[MAX_LENGTH];
1048: CHAR_T* ptr;
1049: CHAR_T used_sep;
1050: int length;
1051: ThotBool check;
1.5 cvs 1052:
1.44 cvs 1053: # ifdef _WINDOWS
1054: int ndx;
1055: # endif /* _WINDOWS */
1056:
1.5 cvs 1057: if (!newName || !docName)
1058: return;
1.18 cvs 1059:
1.32 cvs 1060: if (doc != 0)
1.53 cvs 1061: basename = GetBaseURL (doc);
1062: else if (otherPath != NULL)
1.84 cvs 1063: basename = TtaWCSdup (otherPath);
1.32 cvs 1064: else
1.53 cvs 1065: basename = NULL;
1.32 cvs 1066:
1.18 cvs 1067: /*
1.31 cvs 1068: * Clean orgName
1069: * Make sure we have a complete orgName, without any leading or trailing
1070: * white spaces, or trailinbg new lines
1071: */
1.5 cvs 1072: ptr = orgName;
1.18 cvs 1073: /* skip leading white space and new line characters */
1.84 cvs 1074: while ((*ptr == WC_SPACE || *ptr == WC_EOL) && *ptr++ != WC_EOS);
1075: ustrncpy (tempOrgName, ptr, MAX_LENGTH -1);
1076: tempOrgName[MAX_LENGTH -1] = WC_EOS;
1.18 cvs 1077: /*
1.31 cvs 1078: * Make orgName a complete URL
1079: * If the URL does not include a protocol, then try to calculate
1080: * one using the doc's base element (if it exists),
1081: */
1.84 cvs 1082: if (tempOrgName[0] == WC_EOS)
1.53 cvs 1083: {
1.84 cvs 1084: newName[0] = WC_EOS;
1.53 cvs 1085: TtaFreeMemory (basename);
1086: return;
1087: }
1.49 cvs 1088:
1089: /* clean trailing white space */
1.84 cvs 1090: length = ustrlen (tempOrgName) - 1;
1091: while (tempOrgName[length] == WC_SPACE && tempOrgName[length] == WC_EOL)
1.53 cvs 1092: {
1.84 cvs 1093: tempOrgName[length] = WC_EOS;
1.53 cvs 1094: length--;
1095: }
1.50 cvs 1096:
1.55 cvs 1097: /* remove extra dot (which dot???) */
1098: /* ugly, but faster than a strcmp */
1.84 cvs 1099: if (tempOrgName[length] == TEXT('.')
1100: && (length == 0 || tempOrgName[length-1] != TEXT('.')))
1101: tempOrgName[length] = WC_EOS;
1.50 cvs 1102:
1.94 cvs 1103: if (IsW3Path (tempOrgName))
1.53 cvs 1104: {
1105: /* the name is complete, go to the Sixth Step */
1.84 cvs 1106: ustrcpy (newName, tempOrgName);
1.53 cvs 1107: SimplifyUrl (&newName);
1108: /* verify if the URL has the form "protocol://server:port" */
1.84 cvs 1109: ptr = AmayaParseUrl (newName, TEXT(""), AMAYA_PARSE_ACCESS | AMAYA_PARSE_HOST | AMAYA_PARSE_PUNCTUATION);
1110: if (ptr && !ustrcmp (ptr, newName)) /* it has this form, we complete it by adding a DIR_STR */
1111: ustrcat (newName, WC_URL_STR);
1.49 cvs 1112:
1.53 cvs 1113: if (ptr)
1.50 cvs 1114: TtaFreeMemory (ptr);
1.53 cvs 1115: }
1116: else if ( basename == NULL)
1117: /* the name is complete, go to the Sixth Step */
1.84 cvs 1118: ustrcpy (newName, tempOrgName);
1.53 cvs 1119: else
1120: {
1.31 cvs 1121: /* Calculate the absolute URL, using the base or document URL */
1.44 cvs 1122: # ifdef _WINDOWS
1.53 cvs 1123: if (!IsW3Path (basename))
1124: {
1.67 cvs 1125: length = ustrlen (tempOrgName);
1.53 cvs 1126: for (ndx = 0; ndx < length; ndx++)
1.67 cvs 1127: if (tempOrgName [ndx] == TEXT('/'))
1128: tempOrgName [ndx] = TEXT('\\');
1.53 cvs 1129: }
1.44 cvs 1130: # endif /* _WINDOWS */
1.25 cvs 1131: ptr = AmayaParseUrl (tempOrgName, basename, AMAYA_PARSE_ALL);
1.53 cvs 1132: if (ptr)
1133: {
1134: SimplifyUrl (&ptr);
1.84 cvs 1135: ustrcpy (newName, ptr);
1.53 cvs 1136: TtaFreeMemory (ptr);
1137: }
1138: else
1.84 cvs 1139: newName[0] = WC_EOS;
1.53 cvs 1140: }
1.36 cvs 1141:
1142: TtaFreeMemory (basename);
1.18 cvs 1143: /*
1.31 cvs 1144: * Prepare the docname that will refer to this ressource in the
1145: * .amaya directory. If the new URL finishes on DIR_SEP, then use
1146: * noname.html as a default ressource name
1.18 cvs 1147: */
1.84 cvs 1148: if (newName[0] != WC_EOS)
1.53 cvs 1149: {
1.84 cvs 1150: length = ustrlen (newName) - 1;
1151: if (newName[length] == WC_URL_SEP || newName[length] == WC_DIR_SEP)
1.53 cvs 1152: {
1153: used_sep = newName[length];
1154: check = TRUE;
1155: while (check)
1156: {
1.50 cvs 1157: length--;
1158: while (length >= 0 && newName[length] != used_sep)
1.53 cvs 1159: length--;
1.84 cvs 1160: if (!ustrncmp (&newName[length+1], TEXT(".."), 2))
1.53 cvs 1161: {
1.84 cvs 1162: newName[length+1] = WC_EOS;
1.53 cvs 1163: /* remove also previous directory */
1164: length--;
1165: while (length >= 0 && newName[length] != used_sep)
1166: length--;
1.84 cvs 1167: if (ustrncmp (&newName[length+1], TEXT("//"), 2))
1.53 cvs 1168: /* don't remove server name */
1.84 cvs 1169: newName[length+1] = WC_EOS;
1.53 cvs 1170: }
1.84 cvs 1171: else if (!ustrncmp (&newName[length+1], TEXT("."), 1))
1172: newName[length+1] = WC_EOS;
1.50 cvs 1173: else
1.53 cvs 1174: check = FALSE;
1175: }
1.84 cvs 1176: ustrcpy (docName, TEXT("noname.html"));
1.53 cvs 1177: /* docname was not comprised inside the URL, so let's */
1178: /* assign the default ressource name */
1.84 cvs 1179: ustrcpy (docName, TEXT("noname.html"));
1.53 cvs 1180: }
1181: else
1182: { /* docname is comprised inside the URL */
1.84 cvs 1183: while (length >= 0 && newName[length] != WC_URL_SEP && newName[length] != WC_DIR_SEP)
1.53 cvs 1184: length--;
1185: if (length < 0)
1.84 cvs 1186: ustrcpy (docName, newName);
1.53 cvs 1187: else
1.84 cvs 1188: ustrcpy (docName, &newName[length+1]);
1.53 cvs 1189: }
1190: }
1191: else
1.84 cvs 1192: docName[0] = WC_EOS;
1.18 cvs 1193: }
1.3 cvs 1194:
1.4 cvs 1195: /*----------------------------------------------------------------------
1.9 cvs 1196: IsSameHost
1.4 cvs 1197: ----------------------------------------------------------------------*/
1.3 cvs 1198: #ifdef __STDC__
1.67 cvs 1199: ThotBool IsSameHost (const STRING url1, const STRING url2)
1.3 cvs 1200: #else /* __STDC__ */
1.67 cvs 1201: ThotBool IsSameHost (url1, url2)
1202: const STRING url1;
1203: const STRING url2;
1.3 cvs 1204: #endif /* __STDC__ */
1205: {
1.67 cvs 1206: STRING basename_ptr1, basename_ptr2;
1207: ThotBool result;
1.3 cvs 1208:
1.84 cvs 1209: basename_ptr1 = AmayaParseUrl (url1, TEXT(""), AMAYA_PARSE_ACCESS | AMAYA_PARSE_HOST | AMAYA_PARSE_PUNCTUATION);
1.86 cvs 1210: basename_ptr2 = AmayaParseUrl (url2, TEXT(""), AMAYA_PARSE_ACCESS | AMAYA_PARSE_HOST | AMAYA_PARSE_PUNCTUATION);
1.3 cvs 1211:
1.67 cvs 1212: if (ustrcmp (basename_ptr1, basename_ptr2))
1.8 cvs 1213: result = FALSE;
1.5 cvs 1214: else
1.8 cvs 1215: result = TRUE;
1.3 cvs 1216:
1.25 cvs 1217: TtaFreeMemory (basename_ptr1);
1218: TtaFreeMemory (basename_ptr2);
1.5 cvs 1219: return (result);
1.3 cvs 1220: }
1221:
1222:
1.4 cvs 1223: /*----------------------------------------------------------------------
1.22 cvs 1224: HasKnownFileSuffix
1225: returns TRUE if path points to a file ending with a suffix.
1226: ----------------------------------------------------------------------*/
1227: #ifdef __STDC__
1.67 cvs 1228: ThotBool HasKnownFileSuffix (const STRING path)
1.22 cvs 1229: #else /* __STDC__ */
1.67 cvs 1230: ThotBool HasKnownFileSuffix (path)
1231: const STRING path;
1.22 cvs 1232: #endif /* __STDC__ */
1233: {
1.67 cvs 1234: STRING root;
1235: CHAR_T temppath[MAX_LENGTH];
1236: CHAR_T suffix[MAX_LENGTH];
1.22 cvs 1237:
1.87 cvs 1238: if (!path || path[0] == WC_EOS || path[ustrlen(path)] == WC_DIR_SEP)
1.22 cvs 1239: return (FALSE);
1240:
1.84 cvs 1241: root = AmayaParseUrl(path, TEXT(""), AMAYA_PARSE_PATH | AMAYA_PARSE_PUNCTUATION);
1.22 cvs 1242:
1243: if (root)
1244: {
1.67 cvs 1245: ustrcpy (temppath, root);
1.25 cvs 1246: TtaFreeMemory (root);
1.22 cvs 1247: /* Get the suffix */
1248: ExtractSuffix (temppath, suffix);
1249:
1.87 cvs 1250: if( suffix[0] == WC_EOS)
1.22 cvs 1251: /* no suffix */
1252: return (FALSE);
1253:
1254: /* Normalize the suffix */
1255: ConvertToLowerCase (suffix);
1256:
1.67 cvs 1257: if (!ustrcmp (suffix, TEXT("gz")))
1.22 cvs 1258: /* skip the compressed suffix */
1259: {
1260: ExtractSuffix (temppath, suffix);
1.87 cvs 1261: if(suffix[0] == WC_EOS)
1.22 cvs 1262: /* no suffix */
1263: return (FALSE);
1264: /* Normalize the suffix */
1265: ConvertToLowerCase (suffix);
1266: }
1267:
1.67 cvs 1268: if (ustrcmp (suffix, TEXT("gif")) &&
1269: ustrcmp (suffix, TEXT("xbm")) &&
1270: ustrcmp (suffix, TEXT("xpm")) &&
1271: ustrcmp (suffix, TEXT("jpg")) &&
1272: ustrcmp (suffix, TEXT("pdf")) &&
1273: ustrcmp (suffix, TEXT("png")) &&
1274: ustrcmp (suffix, TEXT("tgz")) &&
1275: ustrcmp (suffix, TEXT("xpg")) &&
1276: ustrcmp (suffix, TEXT("xpd")) &&
1277: ustrcmp (suffix, TEXT("ps")) &&
1278: ustrcmp (suffix, TEXT("au")) &&
1279: ustrcmp (suffix, TEXT("html")) &&
1280: ustrcmp (suffix, TEXT("htm")) &&
1281: ustrcmp (suffix, TEXT("shtml")) &&
1282: ustrcmp (suffix, TEXT("xht")) &&
1283: ustrcmp (suffix, TEXT("xhtm")) &&
1284: ustrcmp (suffix, TEXT("xhtml")) &&
1285: ustrcmp (suffix, TEXT("txt")) &&
1286: ustrcmp (suffix, TEXT("css")) &&
1287: ustrcmp (suffix, TEXT("eps")))
1.22 cvs 1288: return (FALSE);
1289: else
1290: return (TRUE);
1291: }
1292: else
1293: return (FALSE);
1294: }
1295:
1296:
1297: /*----------------------------------------------------------------------
1.24 cvs 1298: ChopURL
1299: Gives back a URL no longer than MAX_PRINT_URL_LENGTH chars (outputURL).
1300: If inputURL is bigger than that size, outputURL receives
1301: MAX_PRINT_URL_LENGTH / 2 chars from the beginning of inputURL, "...",
1302: and MAX_PRINT_URL_LENGTH / 2 chars from the end of inputURL.
1303: If inputURL is not longer than MAX_PRINT_URL_LENGTH chars, it gets
1304: copied into outputURL.
1305: N.B.: outputURL must point to a memory block of MAX_PRINT_URL_LENGTH
1306: chars.
1307: ----------------------------------------------------------------------*/
1308: #ifdef __STDC__
1.86 cvs 1309: void ChopURL (CHAR_T* outputURL, const CHAR_T* inputURL)
1.24 cvs 1310: #else
1311: void ChopURL (outputURL, inputURL)
1.86 cvs 1312: CHAR_T* outputURL;
1313: const CHAR_T* inputURL;
1.24 cvs 1314: #endif
1.22 cvs 1315:
1.24 cvs 1316: {
1317: int len;
1.9 cvs 1318:
1.86 cvs 1319: len = ustrlen (inputURL);
1.24 cvs 1320: if (len <= MAX_PRINT_URL_LENGTH)
1.86 cvs 1321: ustrcpy (outputURL, inputURL);
1.24 cvs 1322: else
1323: /* make a truncated urlName on the status window */
1324: {
1.86 cvs 1325: ustrncpy (outputURL, inputURL, MAX_PRINT_URL_LENGTH / 2);
1326: outputURL [MAX_PRINT_URL_LENGTH / 2] = WC_EOS;
1327: ustrcat (outputURL, TEXT("..."));
1328: ustrcat (outputURL, &(inputURL[len - MAX_PRINT_URL_LENGTH / 2 ]));
1.24 cvs 1329: }
1.25 cvs 1330: }
1331:
1332:
1333: /*----------------------------------------------------------------------
1334: scan
1.47 cvs 1335: Scan a filename for its constituents
1.25 cvs 1336: -----------------------------------
1337:
1338: On entry,
1339: name points to a document name which may be incomplete.
1340: On exit,
1341: absolute or relative may be nonzero (but not both).
1342: host, fragment and access may be nonzero if they were specified.
1343: Any which are nonzero point to zero terminated strings.
1344: ----------------------------------------------------------------------*/
1345: #ifdef __STDC__
1.67 cvs 1346: static void scan (STRING name, HTURI * parts)
1.25 cvs 1347: #else /* __STDC__ */
1348: static void scan (name, parts)
1.67 cvs 1349: STRING name;
1350: HTURI *parts;
1.25 cvs 1351:
1352: #endif /* __STDC__ */
1353: {
1.67 cvs 1354: STRING p;
1355: STRING after_access = name;
1.32 cvs 1356:
1.43 cvs 1357: memset (parts, '\0', sizeof (HTURI));
1.28 cvs 1358: /* Look for fragment identifier */
1.67 cvs 1359: if ((p = ustrchr(name, TEXT('#'))) != NULL)
1.28 cvs 1360: {
1.67 cvs 1361: *p++ = TEXT('\0');
1.28 cvs 1362: parts->fragment = p;
1.25 cvs 1363: }
1364:
1.28 cvs 1365: for (p=name; *p; p++)
1366: {
1.67 cvs 1367: if (*p == URL_SEP || *p == DIR_SEP || *p == TEXT('#') || *p == TEXT('?'))
1.28 cvs 1368: break;
1.67 cvs 1369: if (*p == TEXT(':'))
1.28 cvs 1370: {
1371: *p = 0;
1372: parts->access = after_access; /* Scheme has been specified */
1373:
1374: /* The combination of gcc, the "-O" flag and the HP platform is
1375: unhealthy. The following three lines is a quick & dirty fix, but is
1376: not recommended. Rather, turn off "-O". */
1377:
1378: /* after_access = p;*/
1379: /* while (*after_access == 0)*/
1380: /* after_access++;*/
1381: after_access = p+1;
1.67 cvs 1382: if (!ustrcasecmp(TEXT("URL"), parts->access))
1.28 cvs 1383: /* Ignore IETF's URL: pre-prefix */
1384: parts->access = NULL;
1385: else
1.25 cvs 1386: break;
1387: }
1388: }
1389:
1390: p = after_access;
1.43 cvs 1391: if (*p == URL_SEP || *p == DIR_SEP)
1.28 cvs 1392: {
1.43 cvs 1393: if (p[1] == URL_SEP)
1.28 cvs 1394: {
1.25 cvs 1395: parts->host = p+2; /* host has been specified */
1.28 cvs 1396: *p = 0; /* Terminate access */
1397: /* look for end of host name if any */
1.67 cvs 1398: p = ustrchr (parts->host, URL_SEP);
1.28 cvs 1399: if (p)
1400: {
1.87 cvs 1401: *p = WC_EOS; /* Terminate host */
1.25 cvs 1402: parts->absolute = p+1; /* Root has been found */
1.28 cvs 1403: }
1404: }
1405: else
1406: /* Root found but no host */
1407: parts->absolute = p+1;
1408: }
1409: else
1410: {
1.25 cvs 1411: parts->relative = (*after_access) ? after_access : 0; /* zero for "" */
1.28 cvs 1412: }
1.25 cvs 1413: }
1414:
1415:
1416: /*----------------------------------------------------------------------
1.28 cvs 1417: AmayaParseUrl: parse a Name relative to another name
1418:
1419: This returns those parts of a name which are given (and requested)
1420: substituting bits from the related name where necessary.
1.25 cvs 1421:
1.28 cvs 1422: On entry,
1.25 cvs 1423: aName A filename given
1424: relatedName A name relative to which aName is to be parsed. Give
1425: it an empty string if aName is absolute.
1426: wanted A mask for the bits which are wanted.
1427:
1.28 cvs 1428: On exit,
1.25 cvs 1429: returns A pointer to a malloc'd string which MUST BE FREED
1430: ----------------------------------------------------------------------*/
1431: #ifdef __STDC__
1.84 cvs 1432: CHAR_T* AmayaParseUrl (const CHAR_T* aName, CHAR_T* relatedName, int wanted)
1.25 cvs 1433: #else /* __STDC__ */
1.84 cvs 1434: CHAR_T* AmayaParseUrl (aName, relatedName, wanted)
1435: const CHAR_T* aName;
1436: CHAR_T* relatedName;
1.28 cvs 1437: int wanted;
1.25 cvs 1438:
1439: #endif /* __STDC__ */
1440: {
1.84 cvs 1441: CHAR_T* return_value;
1.67 cvs 1442: CHAR_T result[MAX_LENGTH];
1443: CHAR_T name[MAX_LENGTH];
1444: CHAR_T rel[MAX_LENGTH];
1.84 cvs 1445: CHAR_T *p, *access;
1.29 cvs 1446: HTURI given, related;
1447: int len;
1.67 cvs 1448: CHAR_T used_sep;
1.84 cvs 1449: CHAR_T* used_str;
1.32 cvs 1450:
1.84 cvs 1451: if (ustrchr (aName, WC_DIR_SEP) || ustrchr (relatedName, WC_DIR_SEP))
1.33 cvs 1452: {
1.84 cvs 1453: used_str = WC_DIR_STR;
1454: used_sep = WC_DIR_SEP;
1.33 cvs 1455: }
1.32 cvs 1456: else
1.33 cvs 1457: {
1.84 cvs 1458: used_str = WC_URL_STR;
1459: used_sep = WC_URL_SEP;
1.33 cvs 1460: }
1.32 cvs 1461:
1.29 cvs 1462: /* Make working copies of input strings to cut up: */
1463: return_value = NULL;
1464: result[0] = 0; /* Clear string */
1.67 cvs 1465: ustrcpy (name, aName);
1.29 cvs 1466: if (relatedName != NULL)
1.67 cvs 1467: ustrcpy (rel, relatedName);
1.29 cvs 1468: else
1.84 cvs 1469: relatedName[0] = WC_EOS;
1.29 cvs 1470:
1471: scan (name, &given);
1472: scan (rel, &related);
1473: access = given.access ? given.access : related.access;
1474: if (wanted & AMAYA_PARSE_ACCESS)
1475: if (access)
1476: {
1.67 cvs 1477: ustrcat (result, access);
1.29 cvs 1478: if(wanted & AMAYA_PARSE_PUNCTUATION)
1.67 cvs 1479: ustrcat (result, TEXT(":"));
1.29 cvs 1480: }
1481:
1482: if (given.access && related.access)
1483: /* If different, inherit nothing. */
1.67 cvs 1484: if (ustrcmp (given.access, related.access) != 0)
1.29 cvs 1485: {
1486: related.host = 0;
1487: related.absolute = 0;
1488: related.relative = 0;
1489: related.fragment = 0;
1490: }
1491:
1492: if (wanted & AMAYA_PARSE_HOST)
1493: if(given.host || related.host)
1494: {
1495: if(wanted & AMAYA_PARSE_PUNCTUATION)
1.67 cvs 1496: ustrcat (result, TEXT("//"));
1497: ustrcat (result, given.host ? given.host : related.host);
1.29 cvs 1498: }
1499:
1500: if (given.host && related.host)
1501: /* If different hosts, inherit no path. */
1.67 cvs 1502: if (ustrcmp (given.host, related.host) != 0)
1.29 cvs 1503: {
1504: related.absolute = 0;
1505: related.relative = 0;
1506: related.fragment = 0;
1507: }
1508:
1509: if (wanted & AMAYA_PARSE_PATH)
1510: {
1511: if (given.absolute)
1512: {
1513: /* All is given */
1514: if (wanted & AMAYA_PARSE_PUNCTUATION)
1.67 cvs 1515: ustrcat (result, used_str);
1516: ustrcat (result, given.absolute);
1.25 cvs 1517: }
1.29 cvs 1518: else if (related.absolute)
1519: {
1520: /* Adopt path not name */
1.67 cvs 1521: ustrcat (result, used_str);
1522: ustrcat (result, related.absolute);
1.29 cvs 1523: if (given.relative)
1524: {
1525: /* Search part? */
1.67 cvs 1526: p = ustrchr (result, TEXT('?'));
1.29 cvs 1527: if (!p)
1.67 cvs 1528: p=result+ustrlen(result)-1;
1.33 cvs 1529: for (; *p!=used_sep; p--); /* last / */
1.29 cvs 1530: /* Remove filename */
1531: p[1]=0;
1532: /* Add given one */
1.67 cvs 1533: ustrcat (result, given.relative);
1.25 cvs 1534: }
1535: }
1.29 cvs 1536: else if (given.relative)
1537: /* what we've got */
1.67 cvs 1538: ustrcat (result, given.relative);
1.29 cvs 1539: else if (related.relative)
1.67 cvs 1540: ustrcat (result, related.relative);
1.29 cvs 1541: else
1542: /* No inheritance */
1.67 cvs 1543: ustrcat (result, used_str);
1.25 cvs 1544: }
1.29 cvs 1545:
1546: if (wanted & AMAYA_PARSE_ANCHOR)
1547: if (given.fragment || related.fragment)
1548: {
1549: if (given.absolute && given.fragment)
1550: {
1551: /*Fixes for relURLs...*/
1552: if (wanted & AMAYA_PARSE_PUNCTUATION)
1.67 cvs 1553: ustrcat (result, TEXT("#"));
1554: ustrcat (result, given.fragment);
1.29 cvs 1555: }
1556: else if (!(given.absolute) && !(given.fragment))
1.84 cvs 1557: ustrcat (result, TEXT(""));
1.29 cvs 1558: else
1559: {
1560: if (wanted & AMAYA_PARSE_PUNCTUATION)
1.67 cvs 1561: ustrcat (result, TEXT("#"));
1562: ustrcat (result, given.fragment ? given.fragment : related.fragment);
1.29 cvs 1563: }
1564: }
1.67 cvs 1565: len = ustrlen (result);
1566: if ((return_value = TtaAllocString (len + 1)) != NULL)
1567: ustrcpy (return_value, result);
1.29 cvs 1568: return (return_value); /* exactly the right length */
1.25 cvs 1569: }
1570:
1571: /*----------------------------------------------------------------------
1572: HTCanon
1573: Canonicalizes the URL in the following manner starting from the host
1574: pointer:
1575:
1576: 1) The host name is converted to lowercase
1577: 2) Chop off port if `:80' (http), `:70' (gopher), or `:21' (ftp)
1578:
1579: Return: OK The position of the current path part of the URL
1580: which might be the old one or a new one.
1581:
1582: ----------------------------------------------------------------------*/
1583: #ifdef __STDC__
1.84 cvs 1584: static CHAR_T* HTCanon (CHAR_T** filename, CHAR_T* host)
1.25 cvs 1585: #else /* __STDC__ */
1.67 cvs 1586: static STRING HTCanon (filename, host)
1.84 cvs 1587: CHAR_T** filename;
1588: CHAR_T* host;
1.25 cvs 1589: #endif /* __STDC__ */
1590: {
1.84 cvs 1591: CHAR_T* newname = NULL;
1592: CHAR_T used_sep;
1593: CHAR_T* path;
1594: CHAR_T* strptr;
1595: CHAR_T* port;
1596: CHAR_T* access = host-3;
1.32 cvs 1597:
1598:
1.84 cvs 1599: if (*filename && ustrchr (*filename, WC_URL_SEP))
1.33 cvs 1600: {
1.84 cvs 1601: used_sep = WC_URL_SEP;
1.33 cvs 1602: }
1603: else
1604: {
1.84 cvs 1605: used_sep = WC_DIR_SEP;
1.33 cvs 1606: }
1.32 cvs 1607:
1.82 cvs 1608: while (access > *filename && *(access - 1) != used_sep) /* Find access method */
1.25 cvs 1609: access--;
1.84 cvs 1610: if ((path = ustrchr (host, used_sep)) == NULL) /* Find path */
1611: path = host + ustrlen (host);
1612: if ((strptr = ustrchr (host, TEXT('@'))) != NULL && strptr < path) /* UserId */
1.82 cvs 1613: host = strptr;
1.84 cvs 1614: if ((port = ustrchr (host, TEXT(':'))) != NULL && port > path) /* Port number */
1.82 cvs 1615: port = NULL;
1.25 cvs 1616:
1617: strptr = host; /* Convert to lower-case */
1.82 cvs 1618: while (strptr < path)
1.33 cvs 1619: {
1.84 cvs 1620: *strptr = utolower (*strptr);
1.82 cvs 1621: strptr++;
1.33 cvs 1622: }
1.25 cvs 1623:
1624: /* Does the URL contain a full domain name? This also works for a
1625: numerical host name. The domain name is already made lower-case
1626: and without a trailing dot. */
1627: {
1.84 cvs 1628: CHAR_T* dot = port ? port : path;
1629: if (dot > *filename && *--dot == TEXT('.'))
1.33 cvs 1630: {
1.84 cvs 1631: CHAR_T* orig = dot;
1632: CHAR_T* dest = dot + 1;
1.82 cvs 1633: while ((*orig++ = *dest++));
1634: if (port) port--;
1.33 cvs 1635: path--;
1.25 cvs 1636: }
1637: }
1638: /* Chop off port if `:', `:80' (http), `:70' (gopher), or `:21' (ftp) */
1.33 cvs 1639: if (port)
1640: {
1.82 cvs 1641: if (!*(port+1) || *(port+1) == used_sep)
1.33 cvs 1642: {
1643: if (!newname)
1644: {
1.84 cvs 1645: CHAR_T* orig = port;
1646: CHAR_T* dest = port + 1;
1.82 cvs 1647: while ((*orig++ = *dest++));
1.33 cvs 1648: }
1649: }
1.84 cvs 1650: else if ((!ustrncmp (access, TEXT("http"), 4) &&
1651: (*(port + 1) == TEXT('8') &&
1652: *(port+2) == TEXT('0') &&
1.82 cvs 1653: (*(port+3) == used_sep || !*(port + 3)))) ||
1.84 cvs 1654: (!ustrncmp (access, TEXT("gopher"), 6) &&
1655: (*(port+1) == TEXT('7') &&
1656: *(port+2) == TEXT('0') &&
1.82 cvs 1657: (*(port+3) == used_sep || !*(port+3)))) ||
1.84 cvs 1658: (!ustrncmp (access, TEXT("ftp"), 3) &&
1659: (*(port+1) == TEXT('2') &&
1660: *(port + 2) == TEXT('1') &&
1.82 cvs 1661: (*(port+3) == used_sep || !*(port+3))))) {
1.33 cvs 1662: if (!newname)
1663: {
1.84 cvs 1664: CHAR_T* orig = port;
1665: CHAR_T* dest = port + 3;
1.33 cvs 1666: while((*orig++ = *dest++));
1667: /* Update path position, Henry Minsky */
1668: path -= 3;
1.25 cvs 1669: }
1.33 cvs 1670: }
1671: else if (newname)
1.84 cvs 1672: ustrncat (newname, port, (int) (path - port));
1.33 cvs 1673: }
1.25 cvs 1674:
1.33 cvs 1675: if (newname)
1676: {
1.84 cvs 1677: CHAR_T* newpath = newname + ustrlen (newname);
1678: ustrcat (newname, path);
1.25 cvs 1679: path = newpath;
1.28 cvs 1680: /* Free old copy */
1681: TtaFreeMemory(*filename);
1.25 cvs 1682: *filename = newname;
1.33 cvs 1683: }
1.25 cvs 1684: return path;
1685: }
1686:
1687:
1688: /*----------------------------------------------------------------------
1.29 cvs 1689: SimplifyUrl: simplify a URI
1.32 cvs 1690: A URI is allowed to contain the sequence xxx/../ which may be
1691: replaced by "" , and the sequence "/./" which may be replaced by DIR_STR.
1.28 cvs 1692: Simplification helps us recognize duplicate URIs.
1.25 cvs 1693:
1.28 cvs 1694: Thus, /etc/junk/../fred becomes /etc/fred
1695: /etc/junk/./fred becomes /etc/junk/fred
1.25 cvs 1696:
1.28 cvs 1697: but we should NOT change
1698: http://fred.xxx.edu/../..
1.25 cvs 1699:
1700: or ../../albert.html
1701:
1.28 cvs 1702: In order to avoid empty URLs the following URLs become:
1.25 cvs 1703:
1704: /fred/.. becomes /fred/..
1705: /fred/././.. becomes /fred/..
1706: /fred/.././junk/.././ becomes /fred/..
1707:
1.28 cvs 1708: If more than one set of `://' is found (several proxies in cascade) then
1709: only the part after the last `://' is simplified.
1.25 cvs 1710:
1.28 cvs 1711: Returns: A string which might be the old one or a new one.
1.25 cvs 1712: ----------------------------------------------------------------------*/
1713: #ifdef __STDC__
1.84 cvs 1714: void SimplifyUrl (CHAR_T** url)
1.25 cvs 1715: #else /* __STDC__ */
1.29 cvs 1716: void SimplifyUrl (url)
1.84 cvs 1717: CHAR_T** url;
1.25 cvs 1718: #endif /* __STDC__ */
1719: {
1.84 cvs 1720: CHAR_T* path;
1721: CHAR_T* access;
1722: CHAR_T* newptr;
1723: CHAR_T* p;
1724: CHAR_T *orig, *dest, *end;
1.28 cvs 1725:
1.85 cvs 1726: CHAR_T used_sep;
1.77 cvs 1727: ThotBool ddot_simplify; /* used to desactivate the double dot simplifcation:
1728: something/../ simplification in relative URLs when they start with a ../ */
1.32 cvs 1729:
1730:
1.28 cvs 1731: if (!url || !*url)
1732: return;
1733:
1.84 cvs 1734: if (ustrchr (*url, WC_URL_SEP))
1.33 cvs 1735: {
1.84 cvs 1736: used_sep = WC_URL_SEP;
1.33 cvs 1737: }
1.32 cvs 1738: else
1.33 cvs 1739: {
1.84 cvs 1740: used_sep = WC_DIR_SEP;
1.33 cvs 1741: }
1.32 cvs 1742:
1.77 cvs 1743: /* should we simplify double dot? */
1744: path = *url;
1.84 cvs 1745: if (*path == TEXT('.') && *(path + 1) == TEXT('.'))
1.77 cvs 1746: ddot_simplify = FALSE;
1747: else
1748: ddot_simplify = TRUE;
1749:
1.28 cvs 1750: /* Find any scheme name */
1.84 cvs 1751: if ((path = ustrstr (*url, TEXT("://"))) != NULL)
1.33 cvs 1752: {
1753: /* Find host name */
1.28 cvs 1754: access = *url;
1.84 cvs 1755: while (access < path && (*access = utolower (*access)))
1.82 cvs 1756: access++;
1.28 cvs 1757: path += 3;
1.84 cvs 1758: while ((newptr = ustrstr (path, TEXT ("://"))) != NULL)
1.82 cvs 1759: /* For proxies */
1760: path = newptr+3;
1761: /* We have a host name */
1.84 cvs 1762: path = HTCanon (url, path);
1.25 cvs 1763: }
1.84 cvs 1764: else if ((path = ustrstr (*url, TEXT(":/"))) != NULL)
1.28 cvs 1765: path += 2;
1766: else
1767: path = *url;
1.25 cvs 1768:
1.84 cvs 1769: if (*path == used_sep && *(path+1) == used_sep)
1.28 cvs 1770: /* Some URLs start //<foo> */
1771: path += 1;
1.94 cvs 1772: else if (IsFilePath (path))
1773: {
1774: /* doesn't need to do anything more */
1775: return;
1776: }
1.84 cvs 1777: else if (!ustrncmp (path, TEXT("news:"), 5))
1.28 cvs 1778: {
1.84 cvs 1779: newptr = ustrchr (path+5, TEXT('@'));
1.28 cvs 1780: if (!newptr)
1781: newptr = path + 5;
1782: while (*newptr)
1783: {
1784: /* Make group or host lower case */
1.84 cvs 1785: *newptr = utolower (*newptr);
1.28 cvs 1786: newptr++;
1.25 cvs 1787: }
1.28 cvs 1788: /* Doesn't need to do any more */
1789: return;
1.25 cvs 1790: }
1.28 cvs 1791:
1792: if ((p = path))
1793: {
1.67 cvs 1794: if (!((end = ustrchr (path, TEXT(';'))) || (end = ustrchr (path, TEXT('?'))) ||
1795: (end = ustrchr (path, TEXT('#')))))
1796: end = path + ustrlen (path);
1.28 cvs 1797:
1798: /* Parse string second time to simplify */
1799: p = path;
1800: while (p < end)
1801: {
1.77 cvs 1802: /* if we're pointing to a char, it's safe to reactivate the ../ convertion */
1803: if (!ddot_simplify && *p != TEXT('.') && *p != used_sep)
1804: ddot_simplify = TRUE;
1805:
1.33 cvs 1806: if (*p==used_sep)
1.28 cvs 1807: {
1.67 cvs 1808: if (p > *url && *(p+1) == TEXT('.') && (*(p+2) == used_sep || !*(p+2)))
1.28 cvs 1809: {
1810: orig = p + 1;
1.84 cvs 1811: dest = (*(p+2) != used_sep) ? p+2 : p+3;
1.52 cvs 1812: while ((*orig++ = *dest++)); /* Remove a used_sep and a dot*/
1.28 cvs 1813: end = orig - 1;
1814: }
1.77 cvs 1815: else if (ddot_simplify && *(p+1) == TEXT('.') && *(p+2) == TEXT('.')
1816: && (*(p+3) == used_sep || !*(p+3)))
1.28 cvs 1817: {
1818: newptr = p;
1.52 cvs 1819: while (newptr>path && *--newptr!=used_sep); /* prev used_sep */
1820: if (*newptr == used_sep)
1821: orig = newptr + 1;
1.28 cvs 1822: else
1.52 cvs 1823: orig = newptr;
1824:
1825: dest = (*(p+3) != used_sep) ? p+3 : p+4;
1826: while ((*orig++ = *dest++)); /* Remove /xxx/.. */
1827: end = orig-1;
1828: /* Start again with prev slash */
1829: p = newptr;
1.28 cvs 1830: }
1.33 cvs 1831: else if (*(p+1) == used_sep)
1.28 cvs 1832: {
1.33 cvs 1833: while (*(p+1) == used_sep)
1.28 cvs 1834: {
1835: orig = p;
1836: dest = p + 1;
1837: while ((*orig++ = *dest++)); /* Remove multiple /'s */
1838: end = orig-1;
1839: }
1840: }
1841: else
1.25 cvs 1842: p++;
1.28 cvs 1843: }
1844: else
1845: p++;
1.25 cvs 1846: }
1847: }
1.51 cvs 1848:
1849: /*
1850: ** Check for host/../.. kind of things
1851: */
1.77 cvs 1852: if (*path == used_sep && *(path+1) == TEXT('.') && *(path+2) == TEXT('.')
1853: && (!*(path+3) || *(path+3) == used_sep))
1.87 cvs 1854: *(path+1) = WC_EOS;
1.51 cvs 1855:
1.28 cvs 1856: return;
1857: }
1858:
1859:
1860: /*----------------------------------------------------------------------
1.96 cvs 1861: NormalizeFile normalizes local names.
1.28 cvs 1862: Return TRUE if target and src differ.
1863: ----------------------------------------------------------------------*/
1864: #ifdef __STDC__
1.97 ! cvs 1865: ThotBool NormalizeFile (CHAR_T* src, CHAR_T* target, ConvertionType convertion)
1.28 cvs 1866: #else
1.97 ! cvs 1867: ThotBool NormalizeFile (src, target, convertion)
1.84 cvs 1868: CHAR_T* src;
1869: CHAR_T* target;
1.97 ! cvs 1870: ConvertionType convertion;
1.28 cvs 1871:
1872: #endif
1873: {
1.93 cvs 1874: # ifndef _WINDOWS
1.90 cvs 1875: CHAR_T *s;
1.93 cvs 1876: int i;
1877: # endif /* !_WINDOWS */
1.82 cvs 1878: ThotBool change;
1.90 cvs 1879: int start_index; /* the first char that we'll copy */
1.28 cvs 1880:
1.54 cvs 1881: change = FALSE;
1.90 cvs 1882: start_index = 0;
1883:
1884: if (!src || src[0] == WC_EOS)
1.96 cvs 1885: {
1886: target[0] = WC_EOS;
1887: return FALSE;
1888: }
1.90 cvs 1889:
1890: /* @@ do I need file: or file:/ here? */
1.84 cvs 1891: if (ustrncmp (src, TEXT("file:"), 5) == 0)
1.28 cvs 1892: {
1.90 cvs 1893: /* remove the prefix file: */
1894: start_index += 5;
1895:
1896: /* remove the localhost prefix */
1.94 cvs 1897: if (ustrncmp (&src[start_index], TEXT("//localhost/"), 12) == 0)
1898: start_index += 11;
1899:
1900: /* remove the first two slashes in / / /path */
1901: while (src[start_index] &&
1902: src[start_index] == TEXT('/')
1903: && src[start_index + 1] == TEXT('/'))
1904: start_index++;
1905:
1906: #ifdef _WINDOWS
1907: /* remove any extra slash before the drive name */
1908: if (src[start_index] == TEXT('/')
1909: &&src[start_index+2] == TEXT(':'))
1910: start_index++;
1911: #endif /* _WINDOWS */
1.90 cvs 1912:
1913: if (src[start_index] == WC_EOS)
1914: /* if there's nothing afterwards, add a DIR_STR */
1915: ustrcpy (target, WC_DIR_STR);
1916: else
1.97 ! cvs 1917: /* as we're inside a file: URL, we'll apply all the convertions
! 1918: we know */
! 1919: CleanCopyFileURL (target, &src[start_index], AM_CONV_ALL);
1.96 cvs 1920:
1921: change = TRUE;
1922: }
1.97 ! cvs 1923: else if (convertion != AM_CONV_NONE)
1.96 cvs 1924: {
1925: /* we are following a "local" relative link, we do all the
1926: convertions except for the HOME_DIR ~ one */
1.97 ! cvs 1927: CleanCopyFileURL (target, src, convertion);
1.28 cvs 1928: }
1.90 cvs 1929: #ifndef _WINDOWS
1.84 cvs 1930: else if (src[0] == TEXT('~'))
1.53 cvs 1931: {
1.96 cvs 1932: /* it must be a URL typed in a text input field */
1933: /* do the HOME_DIR ~ substitution */
1.82 cvs 1934: s = TtaGetEnvString ("HOME");
1.84 cvs 1935: ustrcpy (target, s);
1.90 cvs 1936: #if 0
1.96 cvs 1937: /* JK: invalidated this part of the code as it's simpler
1938: to add the DIR_SEP whenever we have something to add
1939: to the path rather than adding it systematically */
1.84 cvs 1940: if (src[1] != WC_DIR_SEP)
1941: ustrcat (target, WC_DIR_STR);
1.90 cvs 1942: #endif
1943: i = ustrlen (target);
1.92 cvs 1944: ustrcpy (&target[i], &src[1]);
1.54 cvs 1945: change = TRUE;
1.53 cvs 1946: }
1.90 cvs 1947: #endif /* _WINDOWS */
1.28 cvs 1948: else
1.96 cvs 1949: /* leave it as it is */
1.92 cvs 1950: ustrcpy (target, src);
1.96 cvs 1951:
1.28 cvs 1952: /* remove /../ and /./ */
1.29 cvs 1953: SimplifyUrl (&target);
1.54 cvs 1954: if (!change)
1.84 cvs 1955: change = ustrcmp (src, target);
1.28 cvs 1956: return (change);
1.25 cvs 1957: }
1958:
1.28 cvs 1959:
1.25 cvs 1960: /*----------------------------------------------------------------------
1.31 cvs 1961: MakeRelativeURL: make relative name
1.25 cvs 1962:
1.28 cvs 1963: This function creates and returns a string which gives an expression of
1964: one address as related to another. Where there is no relation, an absolute
1965: address is retured.
1.25 cvs 1966:
1.28 cvs 1967: On entry,
1.25 cvs 1968: Both names must be absolute, fully qualified names of nodes
1969: (no fragment bits)
1970:
1.28 cvs 1971: On exit,
1.25 cvs 1972: The return result points to a newly allocated name which, if
1973: parsed by AmayaParseUrl relative to relatedName, will yield aName.
1974: The caller is responsible for freeing the resulting name later.
1975: ----------------------------------------------------------------------*/
1976: #ifdef __STDC__
1.67 cvs 1977: STRING MakeRelativeURL (STRING aName, STRING relatedName)
1.25 cvs 1978: #else /* __STDC__ */
1.67 cvs 1979: STRING MakeRelativeURL (aName, relatedName)
1980: STRING aName;
1981: STRING relatedName;
1.25 cvs 1982: #endif /* __STDC__ */
1983: {
1.87 cvs 1984: CHAR_T* return_value;
1.67 cvs 1985: CHAR_T result[MAX_LENGTH];
1.87 cvs 1986: CHAR_T* p;
1987: CHAR_T* q;
1988: CHAR_T* after_access;
1989: CHAR_T* last_slash = NULL;
1.29 cvs 1990: int slashes, levels, len;
1991:
1.44 cvs 1992: # ifdef _WINDOWS
1993: int ndx;
1994: # endif /* _WINDOWS */
1995:
1.29 cvs 1996: if (aName == NULL || relatedName == NULL)
1997: return (NULL);
1998:
1999: slashes = 0;
2000: after_access = NULL;
2001: p = aName;
2002: q = relatedName;
2003: for (; *p && (*p == *q); p++, q++)
1.27 cvs 2004: {
2005: /* Find extent of match */
1.67 cvs 2006: if (*p == TEXT(':'))
1.29 cvs 2007: after_access = p + 1;
1.28 cvs 2008: if (*p == DIR_SEP)
1.27 cvs 2009: {
1.29 cvs 2010: /* memorize the last slash position and count them */
1.27 cvs 2011: last_slash = p;
2012: slashes++;
1.25 cvs 2013: }
2014: }
2015:
1.31 cvs 2016: /* q, p point to the first non-matching character or zero */
1.87 cvs 2017: if (*q == WC_EOS)
1.31 cvs 2018: {
2019: /* New name is a subset of the related name */
2020: /* exactly the right length */
1.67 cvs 2021: len = ustrlen (p);
2022: if ((return_value = TtaAllocString (len + 1)) != NULL)
2023: ustrcpy (return_value, p);
1.31 cvs 2024: }
2025: else if ((slashes < 2 && after_access == NULL)
2026: || (slashes < 3 && after_access != NULL))
2027: {
2028: /* Two names whitout common path */
2029: /* exactly the right length */
1.67 cvs 2030: len = ustrlen (aName);
2031: if ((return_value = TtaAllocString (len + 1)) != NULL)
2032: ustrcpy (return_value, aName);
1.31 cvs 2033: }
2034: else
2035: {
2036: /* Some path in common */
1.67 cvs 2037: if (slashes == 3 && ustrncmp (aName, TEXT("http:"), 5) == 0)
1.31 cvs 2038: /* just the same server */
1.67 cvs 2039: ustrcpy (result, last_slash);
1.31 cvs 2040: else
2041: {
2042: levels= 0;
1.67 cvs 2043: for (; *q && *q != TEXT('#') && *q != TEXT(';') && *q != TEXT('?'); q++)
1.31 cvs 2044: if (*q == DIR_SEP)
2045: levels++;
2046:
1.87 cvs 2047: result[0] = WC_EOS;
1.31 cvs 2048: for (;levels; levels--)
1.67 cvs 2049: ustrcat (result, TEXT("../"));
2050: ustrcat (result, last_slash+1);
1.31 cvs 2051: }
1.52 cvs 2052:
2053: if (!*result)
1.67 cvs 2054: ustrcat (result, TEXT("./"));
1.52 cvs 2055:
1.31 cvs 2056: /* exactly the right length */
1.67 cvs 2057: len = ustrlen (result);
2058: if ((return_value = TtaAllocString (len + 1)) != NULL)
2059: ustrcpy (return_value, result);
1.52 cvs 2060:
1.25 cvs 2061: }
1.44 cvs 2062: # ifdef _WINDOWS
1.67 cvs 2063: len = ustrlen (return_value);
1.44 cvs 2064: for (ndx = 0; ndx < len; ndx ++)
1.67 cvs 2065: if (return_value[ndx] == TEXT('\\'))
2066: return_value[ndx] = TEXT('/') ;
1.44 cvs 2067: # endif /* _WINDOWS */
1.29 cvs 2068: return (return_value);
1.24 cvs 2069: }
1.35 cvs 2070:
2071:
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