Annotation of Amaya/amaya/AHTURLTools.c, revision 1.48
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 {
26: char * access; /* Now known as "scheme" */
27: char * host;
28: char * absolute;
29: char * relative;
30: char * fragment;
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__
1.38 cvs 39: void ConvertToLowerCase (char *string)
1.28 cvs 40: #else /* __STDC__ */
1.38 cvs 41: void ConvertToLowerCase (string)
1.28 cvs 42: char *string;
43:
44: #endif /* __STDC__ */
45: {
46: int i;
47:
48: if (!string)
49: return;
50:
51: for (i = 0; string[i] != EOS; i++)
52: string[i] = tolower (string[i]);
53: }
1.22 cvs 54:
1.8 cvs 55: /*----------------------------------------------------------------------
1.11 cvs 56: ExplodeURL
1.8 cvs 57: ----------------------------------------------------------------------*/
58: #ifdef __STDC__
59: void ExplodeURL (char *url, char **proto, char **host, char **dir, char **file)
60: #else
61: void ExplodeURL (url, proto, host, dir, file)
62: char *url;
63: char **proto;
64: char **host;
65: char **dir;
66: char **file;
67:
68: #endif
69: {
1.33 cvs 70: char *curr, *temp;
71: char used_sep;
1.32 cvs 72:
1.33 cvs 73: if (url && strchr (url, URL_SEP))
74: used_sep = URL_SEP;
75: else
76: used_sep = DIR_SEP;
1.8 cvs 77:
78: if ((url == NULL) || (proto == NULL) || (host == NULL) ||
79: (dir == NULL) || (file == NULL))
80: return;
81:
82: /* initialize every pointer */
83: *proto = *host = *dir = *file = NULL;
84:
85: /* skip any leading space */
86: while ((*url == SPACE) || (*url == TAB))
87: url++;
1.9 cvs 88: curr = url;
89: if (*curr == 0)
1.8 cvs 90: goto finished;
91:
92: /* go to the end of the URL */
1.9 cvs 93: while ((*curr != 0) && (*curr != SPACE) && (*curr != '\b') &&
94: (*curr != '\r') && (*curr != EOL))
95: curr++;
1.8 cvs 96:
97: /* mark the end of the chain */
1.9 cvs 98: *curr = EOS;
99: curr--;
100: if (curr <= url)
1.8 cvs 101: goto finished;
102:
103: /* search the next DIR_SEP indicating the beginning of the file name */
104: do
1.11 cvs 105: curr--;
1.33 cvs 106: while ((curr >= url) && (*curr != used_sep));
1.11 cvs 107:
1.9 cvs 108: if (curr < url)
1.8 cvs 109: goto finished;
1.9 cvs 110: *file = curr + 1;
1.8 cvs 111:
112: /* mark the end of the dir */
1.9 cvs 113: *curr = EOS;
114: curr--;
115: if (curr < url)
1.8 cvs 116: goto finished;
117:
1.29 cvs 118: /* search for the DIR_STR indicating the host name start */
1.33 cvs 119: while ((curr > url) && ((*curr != used_sep) || (*(curr + 1) != used_sep)))
1.9 cvs 120: curr--;
1.8 cvs 121:
122: /* if we found it, separate the host name from the directory */
1.33 cvs 123: if ((*curr == DIR_SEP) && (*(curr + 1) == used_sep))
1.8 cvs 124: {
1.9 cvs 125: *host = temp = curr + 2;
1.33 cvs 126: while ((*temp != 0) && (*temp != used_sep))
1.8 cvs 127: temp++;
1.33 cvs 128: if (*temp == used_sep)
1.8 cvs 129: {
130: *temp = EOS;
131: *dir = temp + 1;
132: }
133: }
134: else
1.11 cvs 135: *dir = curr;
136:
1.9 cvs 137: if (curr <= url)
1.8 cvs 138: goto finished;
139:
140: /* mark the end of the proto */
1.9 cvs 141: *curr = EOS;
142: curr--;
143: if (curr < url)
1.8 cvs 144: goto finished;
145:
1.32 cvs 146: if (*curr == ':')
1.8 cvs 147: {
1.9 cvs 148: *curr = EOS;
149: curr--;
1.8 cvs 150: }
151: else
152: goto finished;
1.11 cvs 153:
1.9 cvs 154: if (curr < url)
1.8 cvs 155: goto finished;
1.9 cvs 156: while ((curr > url) && (isalpha (*curr)))
157: curr--;
158: *proto = curr;
1.8 cvs 159:
160: finished:;
161:
162: #ifdef AMAYA_DEBUG
163: fprintf (stderr, "ExplodeURL(%s)\n\t", url);
164: if (*proto)
165: fprintf (stderr, "proto : %s, ", *proto);
166: if (*host)
167: fprintf (stderr, "host : %s, ", *host);
168: if (*dir)
169: fprintf (stderr, "dir : %s, ", *dir);
170: if (*file)
171: fprintf (stderr, "file : %s ", *file);
172: fprintf (stderr, "\n");
173: #endif
174:
175: }
1.3 cvs 176:
1.4 cvs 177: /*----------------------------------------------------------------------
1.9 cvs 178: IsHTMLName
179: returns TRUE if path points to an HTML resource.
1.4 cvs 180: ----------------------------------------------------------------------*/
1.3 cvs 181: #ifdef __STDC__
1.34 cvs 182: boolean IsHTMLName (const char *path)
1.3 cvs 183: #else /* __STDC__ */
184: boolean IsHTMLName (path)
1.34 cvs 185: const char *path;
1.3 cvs 186: #endif /* __STDC__ */
187: {
1.5 cvs 188: char temppath[MAX_LENGTH];
189: char suffix[MAX_LENGTH];
190: char nsuffix[MAX_LENGTH];
191: int i;
192:
193: if (!path)
1.37 cvs 194: return (FALSE);
1.5 cvs 195:
196: strcpy (temppath, path);
197: ExtractSuffix (temppath, suffix);
198:
199: /* Normalize the suffix */
200: i = 0;
1.39 cvs 201: while (suffix[i] != EOS && i < MAX_LENGTH -1)
1.13 cvs 202: {
1.25 cvs 203: nsuffix[i] = tolower (suffix[i]);
1.13 cvs 204: i++;
205: }
1.5 cvs 206: nsuffix[i] = EOS;
1.39 cvs 207: if ((!strcmp (nsuffix, "html")) ||
208: (!strcmp (nsuffix, "htm")) ||
209: (!strcmp (nsuffix, "shtml")))
210: return (TRUE);
1.22 cvs 211: else if (!strcmp (nsuffix, "gz"))
1.13 cvs 212: {
1.39 cvs 213: /* take into account compressed files */
1.13 cvs 214: ExtractSuffix (temppath, suffix);
215: /* Normalize the suffix */
216: i = 0;
1.39 cvs 217: while (suffix[i] != EOS && i < MAX_LENGTH -1)
1.13 cvs 218: {
1.25 cvs 219: nsuffix[i] = tolower (suffix[i]);
1.13 cvs 220: i++;
221: }
222: nsuffix[i] = EOS;
1.39 cvs 223: if ((!strcmp (nsuffix, "html")) ||
224: (!strcmp (nsuffix, "htm")) ||
225: (!strcmp (nsuffix, "shtml")))
226: return (TRUE);
227: else
1.13 cvs 228: return (FALSE);
229: }
230: else
1.39 cvs 231: return (FALSE);
1.3 cvs 232: }
233:
1.4 cvs 234: /*----------------------------------------------------------------------
1.9 cvs 235: IsImageName
236: returns TRUE if path points to an image resource.
1.4 cvs 237: ----------------------------------------------------------------------*/
1.3 cvs 238: #ifdef __STDC__
1.34 cvs 239: boolean IsImageName (const char *path)
1.3 cvs 240: #else /* __STDC__ */
241: boolean IsImageName (path)
1.34 cvs 242: const char *path;
1.3 cvs 243: #endif /* __STDC__ */
244: {
1.5 cvs 245: char temppath[MAX_LENGTH];
246: char suffix[MAX_LENGTH];
247: char nsuffix[MAX_LENGTH];
248: int i;
249:
250: if (!path)
1.13 cvs 251: return (FALSE);
1.5 cvs 252:
253: strcpy (temppath, path);
254: ExtractSuffix (temppath, suffix);
255:
256: /* Normalize the suffix */
257: i = 0;
1.39 cvs 258: while (suffix[i] != EOS && i < MAX_LENGTH -1)
1.13 cvs 259: {
1.25 cvs 260: nsuffix[i] = tolower (suffix[i]);
1.13 cvs 261: i++;
262: }
1.5 cvs 263: nsuffix[i] = EOS;
1.39 cvs 264: if ((!strcmp (nsuffix, "gif")) || (!strcmp (nsuffix, "xbm")) ||
265: (!strcmp (nsuffix, "xpm")) || (!strcmp (nsuffix, "jpg")) ||
266: (!strcmp (nsuffix, "png")) || (!strcmp (nsuffix, "au")))
267: return (TRUE);
268: return (FALSE);
1.3 cvs 269: }
270:
1.4 cvs 271: /*----------------------------------------------------------------------
1.9 cvs 272: IsTextName
1.4 cvs 273: ----------------------------------------------------------------------*/
1.3 cvs 274: #ifdef __STDC__
1.34 cvs 275: boolean IsTextName (const char *path)
1.3 cvs 276: #else /* __STDC__ */
277: boolean IsTextName (path)
1.34 cvs 278: const char *path;
1.3 cvs 279:
280: #endif /* __STDC__ */
281: {
1.5 cvs 282: char temppath[MAX_LENGTH];
283: char suffix[MAX_LENGTH];
284: char nsuffix[MAX_LENGTH];
285: int i;
286:
287: if (!path)
1.13 cvs 288: return (FALSE);
1.5 cvs 289:
290: strcpy (temppath, path);
291: ExtractSuffix (temppath, suffix);
292:
293: /* Normalize the suffix */
294: i = 0;
1.39 cvs 295: while (suffix[i] != EOS && i < MAX_LENGTH -1)
1.5 cvs 296: {
1.25 cvs 297: nsuffix[i] = tolower (suffix[i]);
1.5 cvs 298: i++;
299: }
300: nsuffix[i] = EOS;
301:
1.39 cvs 302: if ((!strcmp (nsuffix, "txt")) || (!strcmp (nsuffix, "dtd")))
1.13 cvs 303: return (TRUE);
1.22 cvs 304: else if (!strcmp (nsuffix, "gz"))
1.13 cvs 305: {
1.39 cvs 306: /* take into account compressed files */
1.13 cvs 307: ExtractSuffix (temppath, suffix);
308: /* Normalize the suffix */
309: i = 0;
1.39 cvs 310: while (suffix[i] != EOS && i < MAX_LENGTH -1)
1.13 cvs 311: {
1.25 cvs 312: nsuffix[i] = tolower (suffix[i]);
1.13 cvs 313: i++;
314: }
315: nsuffix[i] = EOS;
1.39 cvs 316: if ((!strcmp (nsuffix, "txt")) || (!strcmp (nsuffix, "dtd")))
1.13 cvs 317: return (TRUE);
318: else
319: return (FALSE);
320: }
321: else
322: return (FALSE);
1.3 cvs 323: }
324:
1.4 cvs 325: /*----------------------------------------------------------------------
1.9 cvs 326: IsHTTPPath
327: returns TRUE if path is in fact an http URL.
1.4 cvs 328: ----------------------------------------------------------------------*/
1.3 cvs 329: #ifdef __STDC__
1.34 cvs 330: boolean IsHTTPPath (const char *path)
1.3 cvs 331: #else /* __STDC__ */
332: boolean IsHTTPPath (path)
1.34 cvs 333: const char *path;
1.3 cvs 334: #endif /* __STDC__ */
335: {
1.5 cvs 336: if (!path)
337: return FALSE;
1.3 cvs 338:
1.5 cvs 339: if (strncmp (path, "http:", 5) != 0)
340: return FALSE;
341: return TRUE;
1.3 cvs 342: }
343:
1.4 cvs 344: /*----------------------------------------------------------------------
1.9 cvs 345: IsWithParameters
346: returns TRUE if url has a concatenated query string.
1.4 cvs 347: ----------------------------------------------------------------------*/
1.3 cvs 348: #ifdef __STDC__
1.34 cvs 349: boolean IsWithParameters (const char *url)
1.3 cvs 350: #else /* __STDC__ */
1.9 cvs 351: boolean IsWithParameters (url)
1.34 cvs 352: const char *url;
1.3 cvs 353: #endif /* __STDC__ */
354: {
1.5 cvs 355: int i;
1.3 cvs 356:
1.9 cvs 357: if ((!url) || (url[0] == EOS))
1.5 cvs 358: return FALSE;
1.3 cvs 359:
1.9 cvs 360: i = strlen (url) - 1;
361: while (i > 0 && url[i--] != '?')
1.5 cvs 362: if (i < 0)
363: return FALSE;
1.3 cvs 364:
1.5 cvs 365: /* There is a parameter */
366: return TRUE;
1.3 cvs 367: }
368:
1.4 cvs 369: /*----------------------------------------------------------------------
1.9 cvs 370: IsW3Path
371: returns TRUE if path is in fact a URL.
1.4 cvs 372: ----------------------------------------------------------------------*/
1.3 cvs 373: #ifdef __STDC__
1.34 cvs 374: boolean IsW3Path (const char *path)
1.3 cvs 375: #else /* __STDC__ */
376: boolean IsW3Path (path)
1.34 cvs 377: const char *path;
1.3 cvs 378: #endif /* __STDC__ */
379: {
1.5 cvs 380: if ((strncmp (path, "http:", 5)) && (strncmp (path, "ftp:", 4)) &&
381: (strncmp (path, "telnet:", 7)) && (strncmp (path, "wais:", 5)) &&
382: (strncmp (path, "news:", 5)) && (strncmp (path, "gopher:", 7)) &&
383: (strncmp (path, "mailto:", 7)) && (strncmp (path, "archie:", 7)))
384: return FALSE;
385: return TRUE;
1.3 cvs 386: }
387:
1.4 cvs 388: /*----------------------------------------------------------------------
1.9 cvs 389: IsValidProtocol
390: returns true if the url protocol is supported by Amaya.
1.4 cvs 391: ----------------------------------------------------------------------*/
1.3 cvs 392: #ifdef __STDC__
1.34 cvs 393: boolean IsValidProtocol (const char *url)
1.3 cvs 394: #else /* __STDC__ */
1.9 cvs 395: boolean IsValidProtocol (url)
1.34 cvs 396: const char *url;
1.3 cvs 397: #endif /* __STDC__ */
398: {
1.26 cvs 399: if (!strncmp (url, "http:", 5))
1.22 cvs 400: /* experimental */
1.26 cvs 401: /*** || !strncmp (url, "ftp:", 4)) ***/
1.24 cvs 402: /*** || !strncmp (path, "news:", 5)***/
1.8 cvs 403: return (TRUE);
1.5 cvs 404: else
1.8 cvs 405: return (FALSE);
1.3 cvs 406: }
407:
1.31 cvs 408:
409: /*----------------------------------------------------------------------
410: GetBaseURL
411: normalizes orgName according to a base associated with doc, and
412: following the standard URL format rules.
413: The function returns the base used to solve relative URL and SRC:
414: - the base of the document,
415: - or the document path (without document name).
416: ----------------------------------------------------------------------*/
417: #ifdef __STDC__
418: char *GetBaseURL (Document doc)
419: #else /* __STDC__ */
420: char *GetBaseURL (doc)
421: Document doc;
422: #endif /* __STDC__ */
423: {
424: Element el;
425: ElementType elType;
426: AttributeType attrType;
427: Attribute attr;
428: char *ptr, *basename;
429: int length;
430:
431: basename = TtaGetMemory (MAX_LENGTH);
1.39 cvs 432: strncpy (basename, DocumentURLs[doc], MAX_LENGTH-1);
433: basename[MAX_LENGTH-1] = EOS;
1.31 cvs 434: length = MAX_LENGTH -1;
435: /* get the root element */
436: el = TtaGetMainRoot (doc);
437: /* search the BASE element */
438: elType.ElSSchema = TtaGetDocumentSSchema (doc);
439: elType.ElTypeNum = HTML_EL_BASE;
440: el = TtaSearchTypedElement (elType, SearchInTree, el);
441: if (el)
442: {
443: /* The document has a BASE element -> Get the HREF attribute */
444: attrType.AttrSSchema = elType.ElSSchema;
445: attrType.AttrTypeNum = HTML_ATTR_HREF_;
446: attr = TtaGetAttribute (el, attrType);
447: if (attr)
448: {
449: /* Use the base path of the document */
450: TtaGiveTextAttributeValue (attr, basename, &length);
451: /* base and orgName have to be separated by a DIR_SEP */
452: length--;
1.43 cvs 453: if (basename[0] != EOS && basename[length] != URL_SEP && basename[length] != DIR_SEP)
1.31 cvs 454: /* verify if the base has the form "protocol://server:port" */
455: {
1.33 cvs 456: ptr = AmayaParseUrl (basename, "", AMAYA_PARSE_ACCESS |
457: AMAYA_PARSE_HOST |
458: AMAYA_PARSE_PUNCTUATION);
1.31 cvs 459: if (ptr && !strcmp (ptr, basename))
460: {
1.43 cvs 461: /* it has this form, we complete it by adding a URL_STR */
462: if (strchr (basename, DIR_SEP))
463: strcat (basename, DIR_STR);
464: else
465: strcat (basename, URL_STR);
1.31 cvs 466: length++;
467: }
468: if (ptr)
469: TtaFreeMemory (ptr);
470: }
471: }
1.33 cvs 472: }
473:
1.31 cvs 474: /* Remove anything after the last DIR_SEP char. If no such char is found,
475: * then search for the first ":" char, hoping that what's before that is a
476: * protocol. If found, end the string there. If neither char is found,
477: * then discard the whole base element.
478: */
479: length = strlen (basename) - 1;
480: /* search for the last DIR_SEP char */
1.43 cvs 481: while (length >= 0 && basename[length] != URL_SEP && basename[length] != DIR_SEP)
1.31 cvs 482: length--;
483: if (length >= 0)
484: /* found the last DIR_SEP char, end the string there */
485: basename[length + 1] = EOS;
486: else
487: /* search for the first PATH_STR char */
488: {
1.32 cvs 489: for (length = 0; basename[length] != ':' &&
1.31 cvs 490: basename[length] != EOS; length ++);
1.32 cvs 491: if (basename[length] == ':')
1.31 cvs 492: /* found, so end the string there */
493: basename[length + 1] = EOS;
494: else
495: /* not found, discard the base */
496: basename[0] = EOS;
497: }
498: return (basename);
499: }
500:
501:
1.4 cvs 502: /*----------------------------------------------------------------------
1.40 cvs 503: GetLocalPath
504: Allocate and return the local document path associated to the url
505: ----------------------------------------------------------------------*/
506: #ifdef __STDC__
507: char *GetLocalPath (Document doc, char *url)
508: #else /* __STDC__ */
509: char *GetLocalPath (doc, url)
510: Document doc;
511: char *url;
512: #endif /* __STDC__ */
513: {
1.46 cvs 514: char *ptr, *n;
1.40 cvs 515: char *documentname;
1.41 cvs 516: char url_sep;
1.40 cvs 517: int len;
518: boolean noFile;
519:
520: if (url != NULL)
521: {
522: /* check whether the file name exists */
523: len = strlen (url) - 1;
1.41 cvs 524: if (IsW3Path)
525: url_sep = '/';
526: else
527: url_sep = DIR_SEP;
528: noFile = (url[len] == url_sep);
1.40 cvs 529: if (noFile)
530: url[len] = EOS;
1.47 cvs 531: ptr = TtaGetMemory (MAX_LENGTH);
532: documentname = TtaGetMemory (MAX_LENGTH);
1.40 cvs 533: TtaExtractName (url, ptr, documentname);
534: sprintf (ptr, "%s%s%d%s", TempFileDirectory, DIR_STR, doc, DIR_STR);
535: if (!TtaCheckDirectory (ptr))
536: /* directory did not exist */
537: mkdir (ptr, S_IRWXU);
1.47 cvs 538:
539: /* don't include the query string within document name */
540: n = strrchr(documentname, '?');
541: if (n != NULL)
542: *n = EOS;
1.46 cvs 543: /* don't include ':' within document name */
544: n = strchr (documentname, ':');
545: if (n != NULL)
546: *n = EOS;
1.40 cvs 547: strcat (ptr, documentname);
548: TtaFreeMemory (documentname);
549: /* restore the url */
550: if (noFile)
1.41 cvs 551: url[len] = url_sep;
1.40 cvs 552: return (ptr);
553: }
554: else
555: return (NULL);
556: }
557:
558:
559: /*----------------------------------------------------------------------
1.9 cvs 560: NormalizeURL
561: normalizes orgName according to a base associated with doc, and
562: following the standard URL format rules.
563: The function returns the new complete and normalized URL
1.12 cvs 564: or file name path (newName) and the name of the document (docName).
1.9 cvs 565: N.B. If the function can't find out what's the docName, it assigns
566: the name "noname.html".
1.4 cvs 567: ----------------------------------------------------------------------*/
1.3 cvs 568: #ifdef __STDC__
569: void NormalizeURL (char *orgName, Document doc, char *newName, char *docName)
570: #else /* __STDC__ */
571: void NormalizeURL (orgName, doc, newName, docName)
572: char *orgName;
573: Document doc;
574: char *newName;
575: char *docName;
576: #endif /* __STDC__ */
577: {
1.31 cvs 578: char *basename;
1.18 cvs 579: char tempOrgName[MAX_LENGTH];
1.5 cvs 580: char *ptr;
581: int length;
582:
1.44 cvs 583: # ifdef _WINDOWS
584: int ndx;
585: # endif /* _WINDOWS */
586:
1.5 cvs 587: if (!newName || !docName)
588: return;
1.18 cvs 589:
1.32 cvs 590: if (doc != 0)
1.33 cvs 591: basename = GetBaseURL (doc);
1.32 cvs 592: else
1.33 cvs 593: basename = (char *) NULL;
1.32 cvs 594:
1.18 cvs 595: /*
1.31 cvs 596: * Clean orgName
597: * Make sure we have a complete orgName, without any leading or trailing
598: * white spaces, or trailinbg new lines
599: */
1.5 cvs 600: ptr = orgName;
1.18 cvs 601: /* skip leading white space and new line characters */
1.19 cvs 602: while ((*ptr == ' ' || *ptr == EOL) && *ptr++ != EOS);
1.39 cvs 603: strncpy (tempOrgName, ptr, MAX_LENGTH -1);
604: tempOrgName[MAX_LENGTH -1] = EOS;
1.18 cvs 605: /* clean trailing white space */
1.48 ! cvs 606: # ifndef _WINDOWS
1.18 cvs 607: ptr = strchr (tempOrgName, ' ');
608: if (ptr)
609: *ptr = EOS;
1.48 ! cvs 610: # endif /* !_WINDOWS */
1.18 cvs 611: /* clean trailing new lines */
1.19 cvs 612: ptr = strchr (tempOrgName, EOL);
1.5 cvs 613: if (ptr)
614: *ptr = EOS;
615:
1.18 cvs 616: /*
1.31 cvs 617: * Make orgName a complete URL
618: * If the URL does not include a protocol, then try to calculate
619: * one using the doc's base element (if it exists),
620: */
1.21 cvs 621: if (tempOrgName[0] == EOS)
622: {
623: newName[0] = EOS;
1.36 cvs 624: TtaFreeMemory (basename);
1.21 cvs 625: return;
626: }
627: else if (IsW3Path (tempOrgName))
628: {
629: /* the name is complete, go to the Sixth Step */
630: strcpy (newName, tempOrgName);
631: /* verify if the URL has the form "protocol://server:port" */
1.25 cvs 632: ptr = AmayaParseUrl (newName, "", AMAYA_PARSE_ACCESS | AMAYA_PARSE_HOST |
633: AMAYA_PARSE_PUNCTUATION);
1.21 cvs 634: if (ptr && !strcmp (ptr, newName))
1.43 cvs 635: /* it has this form, we complete it by adding a DIR_STR */
636: strcat (newName, URL_STR);
637:
1.21 cvs 638: if (ptr)
1.25 cvs 639: TtaFreeMemory (ptr);
1.21 cvs 640: }
641: else if ( doc == 0)
1.19 cvs 642: /* the name is complete, go to the Sixth Step */
1.18 cvs 643: strcpy (newName, tempOrgName);
1.5 cvs 644: else
645: {
1.31 cvs 646: /* Calculate the absolute URL, using the base or document URL */
1.44 cvs 647: # ifdef _WINDOWS
1.45 cvs 648: if (!IsW3Path (basename)) {
649: length = strlen (tempOrgName);
650: for (ndx = 0; ndx < length; ndx++)
651: if (tempOrgName [ndx] == '/')
652: tempOrgName [ndx] = '\\';
653: }
1.44 cvs 654: # endif /* _WINDOWS */
1.25 cvs 655: ptr = AmayaParseUrl (tempOrgName, basename, AMAYA_PARSE_ALL);
1.14 cvs 656: if (ptr)
657: {
1.29 cvs 658: SimplifyUrl (&ptr);
1.14 cvs 659: strcpy (newName, ptr);
1.25 cvs 660: TtaFreeMemory (ptr);
1.14 cvs 661: }
662: else
1.18 cvs 663: newName[0] = EOS;
1.5 cvs 664: }
1.36 cvs 665:
666: TtaFreeMemory (basename);
1.18 cvs 667: /*
1.31 cvs 668: * Prepare the docname that will refer to this ressource in the
669: * .amaya directory. If the new URL finishes on DIR_SEP, then use
670: * noname.html as a default ressource name
1.18 cvs 671: */
1.19 cvs 672: if (newName[0] != EOS)
1.5 cvs 673: {
1.19 cvs 674: length = strlen (newName) - 1;
1.43 cvs 675: if (newName[length] == URL_SEP || newName[length] == DIR_SEP)
1.18 cvs 676: {
677: /* docname was not comprised inside the URL, so let's */
678: /* assign the default ressource name */
679: strcpy (docName, "noname.html");
680: /* remove DIR_SEP at the end of complete path */
1.23 cvs 681: /* newName[length] = EOS; */
1.18 cvs 682: }
1.14 cvs 683: else
1.18 cvs 684: {
685: /* docname is comprised inside the URL */
1.43 cvs 686: while (length >= 0 && newName[length] != URL_SEP && newName[length] != DIR_SEP)
1.18 cvs 687: length--;
688: if (length < 0)
689: strcpy (docName, newName);
690: else
691: strcpy (docName, &newName[length+1]);
692: }
1.5 cvs 693: }
1.18 cvs 694: else
695: docName[0] = EOS;
696: }
1.3 cvs 697:
1.4 cvs 698: /*----------------------------------------------------------------------
1.9 cvs 699: IsSameHost
1.4 cvs 700: ----------------------------------------------------------------------*/
1.3 cvs 701: #ifdef __STDC__
1.34 cvs 702: boolean IsSameHost (const char *url1, const char *url2)
1.3 cvs 703: #else /* __STDC__ */
704: boolean IsSameHost (url1, url2)
1.34 cvs 705: const char *url1;
706: const char *url2;
1.3 cvs 707: #endif /* __STDC__ */
708: {
1.34 cvs 709: char *basename_ptr1, *basename_ptr2;
710: boolean result;
1.3 cvs 711:
1.25 cvs 712: basename_ptr1 = AmayaParseUrl (url1, "", AMAYA_PARSE_ACCESS | AMAYA_PARSE_HOST | AMAYA_PARSE_PUNCTUATION);
713: basename_ptr2 = AmayaParseUrl (url2, "", AMAYA_PARSE_ACCESS | AMAYA_PARSE_HOST | AMAYA_PARSE_PUNCTUATION);
1.3 cvs 714:
1.5 cvs 715: if (strcmp (basename_ptr1, basename_ptr2))
1.8 cvs 716: result = FALSE;
1.5 cvs 717: else
1.8 cvs 718: result = TRUE;
1.3 cvs 719:
1.25 cvs 720: TtaFreeMemory (basename_ptr1);
721: TtaFreeMemory (basename_ptr2);
1.5 cvs 722: return (result);
1.3 cvs 723: }
724:
725:
1.4 cvs 726: /*----------------------------------------------------------------------
1.22 cvs 727: HasKnownFileSuffix
728: returns TRUE if path points to a file ending with a suffix.
729: ----------------------------------------------------------------------*/
730: #ifdef __STDC__
1.34 cvs 731: boolean HasKnownFileSuffix (const char *path)
1.22 cvs 732: #else /* __STDC__ */
733: boolean HasKnownFileSuffix (path)
1.34 cvs 734: const char *path;
1.22 cvs 735: #endif /* __STDC__ */
736: {
1.29 cvs 737: char *root;
738: char temppath[MAX_LENGTH];
739: char suffix[MAX_LENGTH];
1.22 cvs 740:
1.24 cvs 741: if (!path || path[0] == EOS || path[strlen(path)] == DIR_SEP)
1.22 cvs 742: return (FALSE);
743:
1.29 cvs 744: root = AmayaParseUrl(path, "", AMAYA_PARSE_PATH | AMAYA_PARSE_PUNCTUATION);
1.22 cvs 745:
746: if (root)
747: {
748: strcpy (temppath, root);
1.25 cvs 749: TtaFreeMemory (root);
1.22 cvs 750: /* Get the suffix */
751: ExtractSuffix (temppath, suffix);
752:
753: if( suffix[0] == EOS)
754: /* no suffix */
755: return (FALSE);
756:
757: /* Normalize the suffix */
758: ConvertToLowerCase (suffix);
759:
1.23 cvs 760: if (!strcmp (suffix, "gz"))
1.22 cvs 761: /* skip the compressed suffix */
762: {
763: ExtractSuffix (temppath, suffix);
764: if(suffix[0] == EOS)
765: /* no suffix */
766: return (FALSE);
767: /* Normalize the suffix */
768: ConvertToLowerCase (suffix);
769: }
770:
771: if ((strcmp (suffix, "gif")) && (strcmp (suffix, "xbm")) &&
772: (strcmp (suffix, "xpm")) && (strcmp (suffix, "jpg")) &&
773: (strcmp (suffix, "pdf")) && (strcmp (suffix, "png")) &&
774: (strcmp (suffix, "tgz")) && (strcmp (suffix, "xpg")) &&
775: (strcmp (suffix, "xpd")) && (strcmp (suffix, "ps")) &&
776: (strcmp (suffix, "au")) && (strcmp (suffix, "html")) &&
777: (strcmp (suffix, "htm")) && (strcmp (suffix, "shtml")) &&
778: (strcmp (suffix, "txt")) && (strcmp (suffix, "css")) &&
779: (strcmp (suffix, "eps")))
780: return (FALSE);
781: else
782: return (TRUE);
783: }
784: else
785: return (FALSE);
786: }
787:
788:
789: /*----------------------------------------------------------------------
1.24 cvs 790: ChopURL
791: Gives back a URL no longer than MAX_PRINT_URL_LENGTH chars (outputURL).
792: If inputURL is bigger than that size, outputURL receives
793: MAX_PRINT_URL_LENGTH / 2 chars from the beginning of inputURL, "...",
794: and MAX_PRINT_URL_LENGTH / 2 chars from the end of inputURL.
795: If inputURL is not longer than MAX_PRINT_URL_LENGTH chars, it gets
796: copied into outputURL.
797: N.B.: outputURL must point to a memory block of MAX_PRINT_URL_LENGTH
798: chars.
799: ----------------------------------------------------------------------*/
800: #ifdef __STDC__
1.34 cvs 801: void ChopURL (char *outputURL, const char *inputURL)
1.24 cvs 802: #else
803: void ChopURL (outputURL, inputURL)
1.34 cvs 804: char *outputURL;
805: const char *inputURL;
1.24 cvs 806: #endif
1.22 cvs 807:
1.24 cvs 808: {
809: int len;
1.9 cvs 810:
1.24 cvs 811: len = strlen (inputURL);
812: if (len <= MAX_PRINT_URL_LENGTH)
1.29 cvs 813: strcpy (outputURL, inputURL);
1.24 cvs 814: else
815: /* make a truncated urlName on the status window */
816: {
817: strncpy (outputURL, inputURL, MAX_PRINT_URL_LENGTH / 2);
818: outputURL [MAX_PRINT_URL_LENGTH / 2] = EOS;
819: strcat (outputURL, "...");
820: strcat (outputURL, &(inputURL[len - MAX_PRINT_URL_LENGTH / 2 ]));
821: }
1.25 cvs 822: }
823:
824:
825: /*----------------------------------------------------------------------
826: scan
1.47 cvs 827: Scan a filename for its constituents
1.25 cvs 828: -----------------------------------
829:
830: On entry,
831: name points to a document name which may be incomplete.
832: On exit,
833: absolute or relative may be nonzero (but not both).
834: host, fragment and access may be nonzero if they were specified.
835: Any which are nonzero point to zero terminated strings.
836: ----------------------------------------------------------------------*/
837: #ifdef __STDC__
838: static void scan (char * name, HTURI * parts)
839: #else /* __STDC__ */
840: static void scan (name, parts)
841: char *name;
842: HTURI *parts;
843:
844: #endif /* __STDC__ */
845: {
1.43 cvs 846: char *p;
847: char *after_access = name;
1.32 cvs 848:
1.43 cvs 849: memset (parts, '\0', sizeof (HTURI));
1.28 cvs 850: /* Look for fragment identifier */
851: if ((p = strrchr(name, '#')) != NULL)
852: {
853: *p++ = '\0';
854: parts->fragment = p;
1.25 cvs 855: }
856:
1.28 cvs 857: for (p=name; *p; p++)
858: {
1.43 cvs 859: if (*p == URL_SEP || *p == DIR_SEP || *p=='#' || *p=='?')
1.28 cvs 860: break;
1.32 cvs 861: if (*p==':')
1.28 cvs 862: {
863: *p = 0;
864: parts->access = after_access; /* Scheme has been specified */
865:
866: /* The combination of gcc, the "-O" flag and the HP platform is
867: unhealthy. The following three lines is a quick & dirty fix, but is
868: not recommended. Rather, turn off "-O". */
869:
870: /* after_access = p;*/
871: /* while (*after_access == 0)*/
872: /* after_access++;*/
873: after_access = p+1;
1.43 cvs 874: if (!strcasecmp("URL", parts->access))
1.28 cvs 875: /* Ignore IETF's URL: pre-prefix */
876: parts->access = NULL;
877: else
1.25 cvs 878: break;
879: }
880: }
881:
882: p = after_access;
1.43 cvs 883: if (*p == URL_SEP || *p == DIR_SEP)
1.28 cvs 884: {
1.43 cvs 885: if (p[1] == URL_SEP)
1.28 cvs 886: {
1.25 cvs 887: parts->host = p+2; /* host has been specified */
1.28 cvs 888: *p = 0; /* Terminate access */
889: /* look for end of host name if any */
1.43 cvs 890: p = strchr (parts->host, URL_SEP);
1.28 cvs 891: if (p)
892: {
1.43 cvs 893: *p = EOS; /* Terminate host */
1.25 cvs 894: parts->absolute = p+1; /* Root has been found */
1.28 cvs 895: }
896: }
897: else
898: /* Root found but no host */
899: parts->absolute = p+1;
900: }
901: else
902: {
1.25 cvs 903: parts->relative = (*after_access) ? after_access : 0; /* zero for "" */
1.28 cvs 904: }
1.25 cvs 905: }
906:
907:
908: /*----------------------------------------------------------------------
1.28 cvs 909: AmayaParseUrl: parse a Name relative to another name
910:
911: This returns those parts of a name which are given (and requested)
912: substituting bits from the related name where necessary.
1.25 cvs 913:
1.28 cvs 914: On entry,
1.25 cvs 915: aName A filename given
916: relatedName A name relative to which aName is to be parsed. Give
917: it an empty string if aName is absolute.
918: wanted A mask for the bits which are wanted.
919:
1.28 cvs 920: On exit,
1.25 cvs 921: returns A pointer to a malloc'd string which MUST BE FREED
922: ----------------------------------------------------------------------*/
923: #ifdef __STDC__
1.34 cvs 924: char *AmayaParseUrl (const char *aName, char *relatedName, int wanted)
1.25 cvs 925: #else /* __STDC__ */
1.28 cvs 926: char *AmayaParseUrl (aName, relatedName, wanted)
1.34 cvs 927: const char *aName;
1.28 cvs 928: char *relatedName;
929: int wanted;
1.25 cvs 930:
931: #endif /* __STDC__ */
932: {
1.29 cvs 933: char *return_value;
934: char result[MAX_LENGTH];
935: char name[MAX_LENGTH];
936: char rel[MAX_LENGTH];
937: char *p, *access;
938: HTURI given, related;
939: int len;
1.33 cvs 940: char used_sep;
941: char *used_str;
1.32 cvs 942:
1.43 cvs 943: if (strchr (aName, DIR_SEP) || strchr (relatedName, DIR_SEP))
1.33 cvs 944: {
1.42 cvs 945: used_str = DIR_STR;
946: used_sep = DIR_SEP;
1.33 cvs 947: }
1.32 cvs 948: else
1.33 cvs 949: {
1.42 cvs 950: used_str = URL_STR;
951: used_sep = URL_SEP;
1.33 cvs 952: }
1.32 cvs 953:
1.29 cvs 954: /* Make working copies of input strings to cut up: */
955: return_value = NULL;
956: result[0] = 0; /* Clear string */
957: strcpy (name, aName);
958: if (relatedName != NULL)
959: strcpy (rel, relatedName);
960: else
961: relatedName[0] = EOS;
962:
963: scan (name, &given);
964: scan (rel, &related);
965: access = given.access ? given.access : related.access;
966: if (wanted & AMAYA_PARSE_ACCESS)
967: if (access)
968: {
969: strcat (result, access);
970: if(wanted & AMAYA_PARSE_PUNCTUATION)
1.32 cvs 971: strcat (result, ":");
1.29 cvs 972: }
973:
974: if (given.access && related.access)
975: /* If different, inherit nothing. */
976: if (strcmp (given.access, related.access) != 0)
977: {
978: related.host = 0;
979: related.absolute = 0;
980: related.relative = 0;
981: related.fragment = 0;
982: }
983:
984: if (wanted & AMAYA_PARSE_HOST)
985: if(given.host || related.host)
986: {
987: if(wanted & AMAYA_PARSE_PUNCTUATION)
988: strcat (result, "//");
989: strcat (result, given.host ? given.host : related.host);
990: }
991:
992: if (given.host && related.host)
993: /* If different hosts, inherit no path. */
994: if (strcmp(given.host, related.host) != 0)
995: {
996: related.absolute = 0;
997: related.relative = 0;
998: related.fragment = 0;
999: }
1000:
1001: if (wanted & AMAYA_PARSE_PATH)
1002: {
1003: if (given.absolute)
1004: {
1005: /* All is given */
1006: if (wanted & AMAYA_PARSE_PUNCTUATION)
1.33 cvs 1007: strcat (result, used_str);
1.29 cvs 1008: strcat (result, given.absolute);
1.25 cvs 1009: }
1.29 cvs 1010: else if (related.absolute)
1011: {
1012: /* Adopt path not name */
1.33 cvs 1013: strcat (result, used_str);
1.29 cvs 1014: strcat (result, related.absolute);
1015: if (given.relative)
1016: {
1017: /* Search part? */
1018: p = strchr (result, '?');
1019: if (!p)
1020: p=result+strlen(result)-1;
1.33 cvs 1021: for (; *p!=used_sep; p--); /* last / */
1.29 cvs 1022: /* Remove filename */
1023: p[1]=0;
1024: /* Add given one */
1025: strcat (result, given.relative);
1026: /*SimplifyUrl (&result);*/
1.25 cvs 1027: }
1028: }
1.29 cvs 1029: else if (given.relative)
1030: /* what we've got */
1031: strcat (result, given.relative);
1032: else if (related.relative)
1033: strcat (result, related.relative);
1034: else
1035: /* No inheritance */
1.33 cvs 1036: strcat (result, used_str);
1.25 cvs 1037: }
1.29 cvs 1038:
1039: if (wanted & AMAYA_PARSE_ANCHOR)
1040: if (given.fragment || related.fragment)
1041: {
1042: if (given.absolute && given.fragment)
1043: {
1044: /*Fixes for relURLs...*/
1045: if (wanted & AMAYA_PARSE_PUNCTUATION)
1046: strcat (result, "#");
1047: strcat (result, given.fragment);
1048: }
1049: else if (!(given.absolute) && !(given.fragment))
1050: strcat (result, "");
1051: else
1052: {
1053: if (wanted & AMAYA_PARSE_PUNCTUATION)
1054: strcat (result, "#");
1055: strcat (result, given.fragment ? given.fragment : related.fragment);
1056: }
1057: }
1058: len = strlen (result);
1059: if ((return_value = (char *) TtaGetMemory (len + 1)) != NULL)
1060: strcpy (return_value, result);
1061: return (return_value); /* exactly the right length */
1.25 cvs 1062: }
1063:
1064: /*----------------------------------------------------------------------
1065: HTCanon
1066: Canonicalizes the URL in the following manner starting from the host
1067: pointer:
1068:
1069: 1) The host name is converted to lowercase
1070: 2) Chop off port if `:80' (http), `:70' (gopher), or `:21' (ftp)
1071:
1072: Return: OK The position of the current path part of the URL
1073: which might be the old one or a new one.
1074:
1075: ----------------------------------------------------------------------*/
1076: #ifdef __STDC__
1.28 cvs 1077: static char *HTCanon (char ** filename, char * host)
1.25 cvs 1078: #else /* __STDC__ */
1.28 cvs 1079: static char *HTCanon (filename, host)
1080: char **filename;
1081: char *host;
1.25 cvs 1082: #endif /* __STDC__ */
1083: {
1084: char *newname = NULL;
1085: char *port;
1086: char *strptr;
1087: char *path;
1088: char *access = host-3;
1.33 cvs 1089: char used_sep;
1.32 cvs 1090:
1091:
1.33 cvs 1092: if (*filename && strchr (*filename, URL_SEP))
1093: {
1094: used_sep = URL_SEP;
1095: }
1096: else
1097: {
1098: used_sep = DIR_SEP;
1099: }
1.32 cvs 1100:
1.33 cvs 1101: while (access>*filename && *(access-1)!= used_sep) /* Find access method */
1.25 cvs 1102: access--;
1.33 cvs 1103: if ((path = strchr(host, used_sep)) == NULL) /* Find path */
1.25 cvs 1104: path = host + strlen(host);
1105: if ((strptr = strchr(host, '@')) != NULL && strptr<path) /* UserId */
1106: host = strptr;
1.32 cvs 1107: if ((port = strchr(host, ':')) != NULL && port>path) /* Port number */
1.25 cvs 1108: port = NULL;
1109:
1110: strptr = host; /* Convert to lower-case */
1.33 cvs 1111: while (strptr<path)
1112: {
1.25 cvs 1113: *strptr = tolower(*strptr);
1114: strptr++;
1.33 cvs 1115: }
1.25 cvs 1116:
1117: /* Does the URL contain a full domain name? This also works for a
1118: numerical host name. The domain name is already made lower-case
1119: and without a trailing dot. */
1120: {
1.33 cvs 1121: char *dot = port ? port : path;
1122: if (dot > *filename && *--dot=='.')
1123: {
1124: char *orig=dot, *dest=dot+1;
1125: while((*orig++ = *dest++));
1126: if (port) port--;
1127: path--;
1.25 cvs 1128: }
1129: }
1130: /* Chop off port if `:', `:80' (http), `:70' (gopher), or `:21' (ftp) */
1.33 cvs 1131: if (port)
1132: {
1133: if (!*(port+1) || *(port+1)==used_sep)
1134: {
1135: if (!newname)
1136: {
1.25 cvs 1137: char *orig=port, *dest=port+1;
1138: while((*orig++ = *dest++));
1.33 cvs 1139: }
1140: }
1141: else if ((!strncmp(access, "http", 4) &&
1142: (*(port+1)=='8'&&*(port+2)=='0'&&(*(port+3)==used_sep||!*(port+3)))) ||
1143: (!strncmp(access, "gopher", 6) &&
1144: (*(port+1)=='7'&&*(port+2)=='0'&&(*(port+3)==used_sep||!*(port+3)))) ||
1145: (!strncmp(access, "ftp", 3) &&
1146: (*(port+1)=='2'&&*(port+2)=='1'&&(*(port+3)==used_sep||!*(port+3))))) {
1147: if (!newname)
1148: {
1149: char *orig=port, *dest=port+3;
1150: while((*orig++ = *dest++));
1151: /* Update path position, Henry Minsky */
1152: path -= 3;
1.25 cvs 1153: }
1.33 cvs 1154: }
1155: else if (newname)
1156: strncat(newname, port, (int) (path-port));
1157: }
1.25 cvs 1158:
1.33 cvs 1159: if (newname)
1160: {
1.25 cvs 1161: char *newpath = newname+strlen(newname);
1162: strcat(newname, path);
1163: path = newpath;
1.28 cvs 1164: /* Free old copy */
1165: TtaFreeMemory(*filename);
1.25 cvs 1166: *filename = newname;
1.33 cvs 1167: }
1.25 cvs 1168: return path;
1169: }
1170:
1171:
1172: /*----------------------------------------------------------------------
1.29 cvs 1173: SimplifyUrl: simplify a URI
1.32 cvs 1174: A URI is allowed to contain the sequence xxx/../ which may be
1175: replaced by "" , and the sequence "/./" which may be replaced by DIR_STR.
1.28 cvs 1176: Simplification helps us recognize duplicate URIs.
1.25 cvs 1177:
1.28 cvs 1178: Thus, /etc/junk/../fred becomes /etc/fred
1179: /etc/junk/./fred becomes /etc/junk/fred
1.25 cvs 1180:
1.28 cvs 1181: but we should NOT change
1182: http://fred.xxx.edu/../..
1.25 cvs 1183:
1184: or ../../albert.html
1185:
1.28 cvs 1186: In order to avoid empty URLs the following URLs become:
1.25 cvs 1187:
1188: /fred/.. becomes /fred/..
1189: /fred/././.. becomes /fred/..
1190: /fred/.././junk/.././ becomes /fred/..
1191:
1.28 cvs 1192: If more than one set of `://' is found (several proxies in cascade) then
1193: only the part after the last `://' is simplified.
1.25 cvs 1194:
1.28 cvs 1195: Returns: A string which might be the old one or a new one.
1.25 cvs 1196: ----------------------------------------------------------------------*/
1197: #ifdef __STDC__
1.29 cvs 1198: void SimplifyUrl (char ** url)
1.25 cvs 1199: #else /* __STDC__ */
1.29 cvs 1200: void SimplifyUrl (url)
1.28 cvs 1201: char **url;
1.25 cvs 1202: #endif /* __STDC__ */
1203: {
1.28 cvs 1204: char *path, *p;
1205: char *newptr, *access;
1206: char *orig, *dest, *end;
1207:
1.33 cvs 1208: char used_sep;
1.32 cvs 1209:
1210:
1.28 cvs 1211: if (!url || !*url)
1212: return;
1213:
1.33 cvs 1214: if (strchr (*url, URL_SEP))
1215: {
1216: used_sep = URL_SEP;
1217: }
1.32 cvs 1218: else
1.33 cvs 1219: {
1220: used_sep = DIR_SEP;
1221: }
1.32 cvs 1222:
1.28 cvs 1223: /* Find any scheme name */
1224: if ((path = strstr(*url, "://")) != NULL)
1.33 cvs 1225: {
1226: /* Find host name */
1.28 cvs 1227: access = *url;
1228: while (access<path && (*access=tolower(*access)))
1229: access++;
1230: path += 3;
1231: while ((newptr = strstr(path, "://")) != NULL)
1232: /* For proxies */
1233: path = newptr+3;
1234: /* We have a host name */
1235: path = HTCanon(url, path);
1.25 cvs 1236: }
1.28 cvs 1237: else if ((path = strstr(*url, ":/")) != NULL)
1238: path += 2;
1239: else
1240: path = *url;
1.25 cvs 1241:
1.33 cvs 1242: if (*path == used_sep && *(path+1)==used_sep)
1.28 cvs 1243: /* Some URLs start //<foo> */
1244: path += 1;
1245: else if (!strncmp(path, "news:", 5))
1246: {
1247: newptr = strchr(path+5, '@');
1248: if (!newptr)
1249: newptr = path + 5;
1250: while (*newptr)
1251: {
1252: /* Make group or host lower case */
1253: *newptr = tolower (*newptr);
1254: newptr++;
1.25 cvs 1255: }
1.28 cvs 1256: /* Doesn't need to do any more */
1257: return;
1.25 cvs 1258: }
1.28 cvs 1259:
1260: if ((p = path))
1261: {
1262: if (!((end = strchr (path, ';')) || (end = strchr (path, '?')) ||
1263: (end = strchr (path, '#'))))
1264: end = path + strlen (path);
1265:
1266: /* Parse string second time to simplify */
1267: p = path;
1268: while (p < end)
1269: {
1.33 cvs 1270: if (*p==used_sep)
1.28 cvs 1271: {
1.33 cvs 1272: if (p > *url && *(p+1) == '.' && (*(p+2) == used_sep || !*(p+2)))
1.28 cvs 1273: {
1274: orig = p + 1;
1.33 cvs 1275: dest = (*(p+2)!=used_sep) ? p+2 : p+3;
1.28 cvs 1276: while ((*orig++ = *dest++)); /* Remove a slash and a dot */
1277: end = orig - 1;
1278: }
1.33 cvs 1279: else if (*(p+1)=='.' && *(p+2)=='.' && (*(p+3)==used_sep || !*(p+3)))
1.28 cvs 1280: {
1281: newptr = p;
1.33 cvs 1282: while (newptr>path && *--newptr!=used_sep); /* prev slash */
1.28 cvs 1283: if (strncmp(newptr, "/../", 4))
1284: {
1285: orig = newptr + 1;
1.33 cvs 1286: dest = (*(p+3)!=used_sep) ? p+3 : p+4;
1.28 cvs 1287: while ((*orig++ = *dest++)); /* Remove /xxx/.. */
1288: end = orig-1;
1289: /* Start again with prev slash */
1290: p = newptr;
1.25 cvs 1291: }
1.28 cvs 1292: else
1.25 cvs 1293: p++;
1.28 cvs 1294: }
1.33 cvs 1295: else if (*(p+1) == used_sep)
1.28 cvs 1296: {
1.33 cvs 1297: while (*(p+1) == used_sep)
1.28 cvs 1298: {
1299: orig = p;
1300: dest = p + 1;
1301: while ((*orig++ = *dest++)); /* Remove multiple /'s */
1302: end = orig-1;
1303: }
1304: }
1305: else
1.25 cvs 1306: p++;
1.28 cvs 1307: }
1308: else
1309: p++;
1.25 cvs 1310: }
1311: }
1.28 cvs 1312: return;
1313: }
1314:
1315:
1316: /*----------------------------------------------------------------------
1317: NormalizeFile normalizes local names.
1318: Return TRUE if target and src differ.
1319: ----------------------------------------------------------------------*/
1320: #ifdef __STDC__
1321: boolean NormalizeFile (char *src, char *target)
1322: #else
1323: boolean NormalizeFile (src, target)
1324: char *src;
1325: char *target;
1326:
1327: #endif
1328: {
1329: char *s;
1330: boolean change;
1331:
1332: change = FALSE;
1.48 ! cvs 1333: # ifdef _WINDOWS
! 1334: if (src[1] == ':' && src[2] == '\\') {
! 1335: strcpy (target, src);
! 1336: change = TRUE;
! 1337: }
! 1338: # else /* !_WINDOWS */
1.28 cvs 1339: if (src[0] == '~')
1340: {
1341: /* replace ~ */
1342: s = (char *) TtaGetEnvString ("HOME");
1343: strcpy (target, s);
1344: strcat (target, &src[1]);
1345: change = TRUE;
1346: }
1.48 ! cvs 1347: # endif /* _WINDOWS */
1.28 cvs 1348: else if (strncmp (src, "file:", 5) == 0)
1349: {
1350: /* remove the prefix file: */
1351: if (src[5] == EOS)
1352: strcpy (target, DIR_STR);
1353: else if (src[0] == '~')
1354: {
1355: /* replace ~ */
1356: s = (char *) TtaGetEnvString ("HOME");
1357: strcpy (target, s);
1358: strcat (target, &src[5]);
1359: }
1360: else
1361: strcpy (target, &src[5]);
1362: change = TRUE;
1363: }
1364: else
1365: strcpy (target, src);
1366:
1367: /* remove /../ and /./ */
1.29 cvs 1368: SimplifyUrl (&target);
1.28 cvs 1369: return (change);
1.25 cvs 1370: }
1371:
1.28 cvs 1372:
1.25 cvs 1373: /*----------------------------------------------------------------------
1.31 cvs 1374: MakeRelativeURL: make relative name
1.25 cvs 1375:
1.28 cvs 1376: This function creates and returns a string which gives an expression of
1377: one address as related to another. Where there is no relation, an absolute
1378: address is retured.
1.25 cvs 1379:
1.28 cvs 1380: On entry,
1.25 cvs 1381: Both names must be absolute, fully qualified names of nodes
1382: (no fragment bits)
1383:
1.28 cvs 1384: On exit,
1.25 cvs 1385: The return result points to a newly allocated name which, if
1386: parsed by AmayaParseUrl relative to relatedName, will yield aName.
1387: The caller is responsible for freeing the resulting name later.
1388: ----------------------------------------------------------------------*/
1389: #ifdef __STDC__
1.31 cvs 1390: char *MakeRelativeURL (char *aName, char *relatedName)
1.25 cvs 1391: #else /* __STDC__ */
1.31 cvs 1392: char *MakeRelativeURL (aName, relatedName)
1.28 cvs 1393: char *aName;
1394: char *relatedName;
1.25 cvs 1395: #endif /* __STDC__ */
1396: {
1.39 cvs 1397: char *return_value;
1398: char result[MAX_LENGTH];
1.29 cvs 1399: char *p;
1.34 cvs 1400: char *q;
1.29 cvs 1401: char *after_access;
1402: char *last_slash = NULL;
1403: int slashes, levels, len;
1404:
1.44 cvs 1405: # ifdef _WINDOWS
1406: int ndx;
1407: # endif /* _WINDOWS */
1408:
1.29 cvs 1409: if (aName == NULL || relatedName == NULL)
1410: return (NULL);
1411:
1412: slashes = 0;
1413: after_access = NULL;
1414: p = aName;
1415: q = relatedName;
1416: for (; *p && (*p == *q); p++, q++)
1.27 cvs 1417: {
1418: /* Find extent of match */
1.32 cvs 1419: if (*p == ':')
1.29 cvs 1420: after_access = p + 1;
1.28 cvs 1421: if (*p == DIR_SEP)
1.27 cvs 1422: {
1.29 cvs 1423: /* memorize the last slash position and count them */
1.27 cvs 1424: last_slash = p;
1425: slashes++;
1.25 cvs 1426: }
1427: }
1428:
1.31 cvs 1429: /* q, p point to the first non-matching character or zero */
1430: if (*q == EOS)
1431: {
1432: /* New name is a subset of the related name */
1433: /* exactly the right length */
1434: len = strlen (p);
1435: if ((return_value = (char *) TtaGetMemory (len + 1)) != NULL)
1436: strcpy (return_value, p);
1437: }
1438: else if ((slashes < 2 && after_access == NULL)
1439: || (slashes < 3 && after_access != NULL))
1440: {
1441: /* Two names whitout common path */
1442: /* exactly the right length */
1443: len = strlen (aName);
1444: if ((return_value = (char *) TtaGetMemory (len + 1)) != NULL)
1445: strcpy (return_value, aName);
1446: }
1447: else
1448: {
1449: /* Some path in common */
1450: if (slashes == 3 && strncmp (aName, "http:", 5) == 0)
1451: /* just the same server */
1452: strcpy (result, last_slash);
1453: else
1454: {
1455: levels= 0;
1456: for (; *q && (*q != '#'); q++)
1457: if (*q == DIR_SEP)
1458: levels++;
1459:
1460: result[0] = 0;
1461: for (;levels; levels--)
1462: strcat (result, "../");
1463: strcat (result, last_slash+1);
1464: }
1465:
1466: /* exactly the right length */
1467: len = strlen (result);
1468: if ((return_value = (char *) TtaGetMemory (len + 1)) != NULL)
1469: strcpy (return_value, result);
1.25 cvs 1470: }
1.44 cvs 1471: # ifdef _WINDOWS
1472: len = strlen (return_value);
1473: for (ndx = 0; ndx < len; ndx ++)
1474: if (return_value[ndx] == '\\')
1475: return_value[ndx] = '/' ;
1476: # endif /* _WINDOWS */
1.29 cvs 1477: return (return_value);
1.24 cvs 1478: }
1.35 cvs 1479:
1480:
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