Annotation of libwww/Library/src/HTAnchor.c, revision 1.87.2.1
1.14 frystyk 1: /* HTAnchor.c
2: ** HYPERTEXT "ANCHOR" OBJECT
1.1 timbl 3: **
1.22 frystyk 4: ** (c) COPYRIGHT MIT 1995.
1.14 frystyk 5: ** Please first read the full copyright statement in the file COPYRIGH.
1.87.2.1! kahan 6: ** @(#) $Id: HTAnchor.c,v 1.87 1999/03/08 16:52:17 frystyk Exp $
1.14 frystyk 7: **
8: ** An anchor represents a region of a hypertext document which is
9: ** linked to another anchor in the same or a different document.
1.1 timbl 10: **
11: ** History
12: ** Nov 1990 Written in Objective-C for the NeXT browser (TBL)
13: ** 24-Oct-1991 (JFG), written in C, browser-independant
14: ** 21-Nov-1991 (JFG), first complete version
1.41 frystyk 15: ** 3-May-1995 (HF), Added a lot of methods and other stuff made an object
1.54 frystyk 16: ** July 1996 Patch for adding hash of children Michael Farrar
1.1 timbl 17: */
18:
1.16 frystyk 19: /* Library include files */
1.76 frystyk 20: #include "wwwsys.h"
1.50 frystyk 21: #include "WWWUtil.h"
1.7 luotonen 22: #include "HTFormat.h"
1.1 timbl 23: #include "HTParse.h"
1.24 frystyk 24: #include "HTMethod.h"
1.63 frystyk 25: #include "HTWWWStr.h"
1.41 frystyk 26: #include "HTAncMan.h" /* Implemented here */
1.11 frystyk 27:
1.85 frystyk 28: #define PARENT_HASH_SIZE HT_XL_HASH_SIZE
29: #define CHILD_HASH_SIZE HT_L_HASH_SIZE
1.1 timbl 30:
31: PRIVATE HTList **adult_table=0; /* Point to table of lists of all parents */
32:
1.17 frystyk 33: /* ------------------------------------------------------------------------- */
34: /* Creation Methods */
35: /* ------------------------------------------------------------------------- */
36:
37: /*
1.1 timbl 38: ** Do not use "new" by itself outside this module. In order to enforce
39: ** consistency, we insist that you furnish more information about the
40: ** anchor you are creating : use newWithParent or newWithAddress.
41: */
1.35 frystyk 42: PRIVATE HTParentAnchor * HTParentAnchor_new (void)
1.1 timbl 43: {
1.43 frystyk 44: HTParentAnchor *newAnchor;
1.54 frystyk 45: if ((newAnchor = (HTParentAnchor *) HT_CALLOC(1, sizeof (HTParentAnchor))) == NULL)
1.43 frystyk 46: HT_OUTOFMEM("HTParentAnchor_new");
1.16 frystyk 47: newAnchor->parent = newAnchor;
1.17 frystyk 48: newAnchor->content_type = WWW_UNKNOWN;
1.24 frystyk 49: newAnchor->mainLink.method = METHOD_INVALID;
1.41 frystyk 50: newAnchor->content_length = -1; /* howcome 6 dec 95 */
1.28 frystyk 51: newAnchor->date = (time_t) -1;
52: newAnchor->expires = (time_t) -1;
53: newAnchor->last_modified = (time_t) -1;
1.59 frystyk 54: newAnchor->age = (time_t) -1;
1.16 frystyk 55: return newAnchor;
1.1 timbl 56: }
57:
1.16 frystyk 58:
1.35 frystyk 59: PRIVATE HTChildAnchor * HTChildAnchor_new (void)
1.1 timbl 60: {
1.43 frystyk 61: HTChildAnchor *child;
62: if ((child = (HTChildAnchor *) HT_CALLOC(1, sizeof(HTChildAnchor))) == NULL)
63: HT_OUTOFMEM("HTChildAnchor_new");
1.33 frystyk 64: return child;
1.1 timbl 65: }
66:
1.17 frystyk 67: /* Create new or find old child anchor
68: ** -----------------------------------
1.1 timbl 69: **
1.3 timbl 70: ** Me one is for a new anchor being edited into an existing
1.17 frystyk 71: ** document. The parent anchor must already exist. All
72: ** children without tags (no NAME attribut) points to the same NULL
73: ** child.
1.54 frystyk 74: ** Children are now hashed for performance reasons. Thanks to
75: ** Michael Farrar
1.1 timbl 76: */
1.35 frystyk 77: PUBLIC HTChildAnchor * HTAnchor_findChild (HTParentAnchor * parent,
1.46 frystyk 78: const char * tag)
1.1 timbl 79: {
1.54 frystyk 80: HTChildAnchor * child = NULL;
81: HTList * kids = NULL;
1.17 frystyk 82: if (!parent) {
1.86 frystyk 83: HTTRACE(ANCH_TRACE, "Child Anchor Bad argument\n");
1.17 frystyk 84: return NULL;
85: }
1.1 timbl 86:
1.54 frystyk 87: /* Find a hash for this tag (if any) */
88: {
89: int hash = 0;
90: /*
91: ** If tag is empty then use hash value 0
92: */
93: if (tag) {
94: const char * ptr = tag;
95: for(; *ptr; ptr++)
96: hash = (int) ((hash*3 + (*(unsigned char*)ptr)) % CHILD_HASH_SIZE);
97: }
1.55 frystyk 98: if (!parent->children) {
99: if (!(parent->children = (HTList **)
1.54 frystyk 100: HT_CALLOC(CHILD_HASH_SIZE, sizeof(HTList *))))
101: HT_OUTOFMEM("HTAnchor_findChild");
102: }
1.55 frystyk 103: if (!parent->children[hash]) parent->children[hash] = HTList_new();
104: kids = parent->children[hash];
1.54 frystyk 105: }
106:
1.17 frystyk 107: /* First search list of children to see if tag is already there */
1.54 frystyk 108: if (tag && *tag) {
109: HTList * cur = kids;
110: while ((child = (HTChildAnchor *) HTList_nextObject(cur))) {
1.56 frystyk 111: if (child->tag && !strcmp(child->tag, tag)) {
1.86 frystyk 112: HTTRACE(ANCH_TRACE, "Child Anchor %p of parent %p with name `%s' already exists.\n" _
113: (void *) child _ (void *) parent _ tag);
1.54 frystyk 114: return child;
1.1 timbl 115: }
116: }
1.54 frystyk 117: }
118:
119: /* If not found then create a new child anchor */
1.17 frystyk 120: child = HTChildAnchor_new();
1.54 frystyk 121: HTList_addObject(kids, (void *) child);
1.17 frystyk 122: child->parent = parent;
1.54 frystyk 123: if (tag) StrAllocCopy(child->tag, tag);
1.86 frystyk 124: HTTRACE(ANCH_TRACE, "Child Anchor New Anchor %p named `%s' is child of %p\n" _
125: (void *) child _ tag ? tag : (const char *) "" _ (void *)parent);
1.17 frystyk 126: return child;
1.1 timbl 127: }
128:
129:
130: /* Create new or find old named anchor
131: ** -----------------------------------
132: **
1.3 timbl 133: ** Me one is for a reference which is found in a document, and might
1.1 timbl 134: ** not be already loaded.
135: ** Note: You are not guaranteed a new anchor -- you might get an old one,
136: ** like with fonts.
137: */
1.46 frystyk 138: PUBLIC HTAnchor * HTAnchor_findAddress (const char * address)
1.1 timbl 139: {
1.75 frystyk 140: char *tag = HTParse (address, "", PARSE_VIEW); /* Any tags? */
1.1 timbl 141:
1.16 frystyk 142: /* If the address represents a sub-anchor, we recursively load its parent,
143: then we create a child anchor within that document. */
144: if (*tag) {
1.34 frystyk 145: char *addr = HTParse(address, "", PARSE_ACCESS | PARSE_HOST |
146: PARSE_PATH | PARSE_PUNCTUATION);
147: HTParentAnchor * parent = (HTParentAnchor*) HTAnchor_findAddress(addr);
148: HTChildAnchor * child = HTAnchor_findChild(parent, tag);
1.43 frystyk 149: HT_FREE(addr);
150: HT_FREE(tag);
1.34 frystyk 151: return (HTAnchor *) child;
1.16 frystyk 152: } else { /* Else check whether we have this node */
153: int hash;
1.46 frystyk 154: const char *p;
1.16 frystyk 155: HTList * adults;
156: HTList *grownups;
157: HTParentAnchor * foundAnchor;
1.34 frystyk 158: char *newaddr = NULL;
159: StrAllocCopy(newaddr, address); /* Get our own copy */
1.43 frystyk 160: HT_FREE(tag);
1.38 frystyk 161: newaddr = HTSimplify(&newaddr);
1.34 frystyk 162:
1.16 frystyk 163: /* Select list from hash table */
164: for(p=newaddr, hash=0; *p; p++)
1.85 frystyk 165: hash = (int) ((hash * 3 + (*(unsigned char*)p)) % PARENT_HASH_SIZE);
1.33 frystyk 166: if (!adult_table) {
1.85 frystyk 167: if ((adult_table = (HTList* *) HT_CALLOC(PARENT_HASH_SIZE, sizeof(HTList*))) == NULL)
1.43 frystyk 168: HT_OUTOFMEM("HTAnchor_findAddress");
1.33 frystyk 169: }
1.16 frystyk 170: if (!adult_table[hash]) adult_table[hash] = HTList_new();
171: adults = adult_table[hash];
172:
173: /* Search list for anchor */
174: grownups = adults;
175: while ((foundAnchor = (HTParentAnchor *) HTList_nextObject(grownups))){
1.33 frystyk 176: if (!strcmp(foundAnchor->address, newaddr)) {
1.86 frystyk 177: HTTRACE(ANCH_TRACE, "Find Parent. %p with address `%s' already exists.\n" _
178: (void*) foundAnchor _ newaddr);
1.43 frystyk 179: HT_FREE(newaddr); /* We already have it */
1.16 frystyk 180: return (HTAnchor *) foundAnchor;
181: }
182: }
183:
184: /* Node not found : create new anchor. */
185: foundAnchor = HTParentAnchor_new();
186: foundAnchor->address = newaddr; /* Remember our copy */
187: HTList_addObject (adults, foundAnchor);
1.86 frystyk 188: HTTRACE(ANCH_TRACE, "Find Parent. %p with hash %d and address `%s' created\n" _ (void*)foundAnchor _ hash _ newaddr);
1.1 timbl 189: return (HTAnchor *) foundAnchor;
190: }
191: }
192:
1.17 frystyk 193: /* Create or find a child anchor with a possible link
194: ** --------------------------------------------------
195: **
196: ** Create new anchor with a given parent and possibly
197: ** a name, and possibly a link to a _relatively_ named anchor.
1.34 frystyk 198: ** All parameters EXCEPT parent can be NULL
1.17 frystyk 199: */
1.34 frystyk 200: PUBLIC HTChildAnchor * HTAnchor_findChildAndLink (HTParentAnchor * parent,
1.46 frystyk 201: const char * tag,
202: const char * href,
1.41 frystyk 203: HTLinkType ltype)
1.17 frystyk 204: {
1.34 frystyk 205: HTChildAnchor * child = HTAnchor_findChild(parent, tag);
1.54 frystyk 206: if (child && href && *href) {
1.53 frystyk 207: char * relative_to = HTAnchor_expandedAddress((HTAnchor *) parent);
1.34 frystyk 208: char * parsed_address = HTParse(href, relative_to, PARSE_ALL);
209: HTAnchor * dest = HTAnchor_findAddress(parsed_address);
1.52 frystyk 210: HTLink_add((HTAnchor *) child, dest, ltype, METHOD_INVALID);
1.43 frystyk 211: HT_FREE(parsed_address);
212: HT_FREE(relative_to);
1.34 frystyk 213: }
214: return child;
1.17 frystyk 215: }
216:
1.52 frystyk 217: /* ------------------------------------------------------------------------- */
218: /* Link Methods */
219: /* ------------------------------------------------------------------------- */
1.28 frystyk 220:
1.41 frystyk 221: /*
222: ** Upgrade the link to the main destination and and downgrade the
223: ** current main link to the list
224: */
225: PUBLIC HTLink * HTAnchor_mainLink (HTAnchor * me)
226: {
227: return me ? &(me->mainLink) : NULL;
228: }
1.28 frystyk 229:
1.41 frystyk 230: PUBLIC BOOL HTAnchor_setMainLink (HTAnchor * me, HTLink * movingLink)
1.28 frystyk 231: {
1.41 frystyk 232: if (!(me && me->links && movingLink &&
233: HTList_removeObject(me->links, movingLink)))
234: return NO;
235: else {
236: /* First push current main link onto top of links list */
1.52 frystyk 237: HTLink * newLink = HTLink_new();
1.42 frystyk 238: memcpy ((void *) newLink, & me->mainLink, sizeof (HTLink));
1.41 frystyk 239: HTList_addObject (me->links, newLink);
240:
1.52 frystyk 241: /* Now make movingLink the new main link, and delete it */
1.42 frystyk 242: memcpy ((void *) &me->mainLink, movingLink, sizeof (HTLink));
1.52 frystyk 243: HTLink_delete(movingLink);
1.28 frystyk 244: return YES;
245: }
246: }
247:
248: /*
1.41 frystyk 249: ** Handling sub links
1.24 frystyk 250: */
1.41 frystyk 251: PUBLIC HTList * HTAnchor_subLinks (HTAnchor * anchor)
1.24 frystyk 252: {
1.41 frystyk 253: return anchor ? anchor->links : NULL;
1.24 frystyk 254: }
255:
1.41 frystyk 256: PUBLIC BOOL HTAnchor_setSubLinks (HTAnchor * anchor, HTList * list)
257: {
258: if (anchor) {
259: anchor->links = list;
260: return YES;
261: }
262: return NO;
263: }
1.24 frystyk 264:
265: /*
1.41 frystyk 266: ** Returns the main destination of this anchor
267: */
268: PUBLIC HTAnchor * HTAnchor_followMainLink (HTAnchor * me)
269: {
1.52 frystyk 270: return me ? HTLink_destination(&me->mainLink) : NULL;
1.71 frystyk 271: }
272:
273: /*
274: ** Returns a link with a given link type or NULL if nothing found
275: */
276: PUBLIC HTLink * HTAnchor_findLinkType (HTAnchor * me, HTLinkType type)
277: {
278: if (me) {
279: HTLink * link = HTAnchor_mainLink(me);
280: HTList * sublinks = HTAnchor_subLinks(me);
281: if (link && HTLink_type(link) == type)
282: return link;
283: else if (sublinks) {
284: while ((link = (HTLink *) HTList_nextObject (sublinks)))
285: if (HTLink_type(link) == type) return link;
286: }
287: }
288: return NULL;
1.17 frystyk 289: }
290:
291: /* ------------------------------------------------------------------------- */
292: /* Deletion Methods */
293: /* ------------------------------------------------------------------------- */
1.1 timbl 294:
295: /* Delete an anchor and possibly related things (auto garbage collection)
296: ** --------------------------------------------
297: **
298: ** The anchor is only deleted if the corresponding document is not loaded.
1.10 frystyk 299: ** All outgoing links from parent and children are deleted, and this
300: ** anchor is removed from the sources list of all its targets.
1.1 timbl 301: ** We also try to delete the targets whose documents are not loaded.
302: ** If this anchor's source list is empty, we delete it and its children.
303: */
304:
1.41 frystyk 305: /* Deletes all the memory allocated in a parent anchor and returns any
306: ** hyperdoc object hanging of this anchor
1.19 frystyk 307: */
1.41 frystyk 308: PRIVATE void * delete_parent (HTParentAnchor * me)
1.19 frystyk 309: {
1.41 frystyk 310: void * doc = me->document;
1.19 frystyk 311:
312: /* Remove link and address information */
1.26 frystyk 313: if (me->links) {
314: HTList *cur = me->links;
315: HTLink *pres;
316: while ((pres = (HTLink *) HTList_nextObject(cur)))
1.52 frystyk 317: HTLink_delete(pres);
1.26 frystyk 318: HTList_delete(me->links);
319: }
1.54 frystyk 320:
321: /* Remove children */
322: if (me->children) {
323: int cnt = 0;
324: for (; cnt<CHILD_HASH_SIZE; cnt++) {
325: if (me->children[cnt]) HTList_delete(me->children[cnt]);
326: }
327: HT_FREE(me->children);
328: }
329:
1.19 frystyk 330: HTList_delete (me->sources);
1.52 frystyk 331: HTList_delete (me->variants);
1.43 frystyk 332: HT_FREE(me->physical);
333: HT_FREE(me->address);
1.19 frystyk 334:
335: /* Then remove entity header information (metainformation) */
1.59 frystyk 336: HTAnchor_clearHeader(me);
1.57 frystyk 337:
1.43 frystyk 338: HT_FREE(me);
1.19 frystyk 339: return doc;
340: }
341:
342:
1.41 frystyk 343: /* Delete a parent anchor and all its children. If a hyperdoc object
344: ** is found hanging off the parent anchor then this is returned
1.19 frystyk 345: */
1.41 frystyk 346: PRIVATE void * delete_family (HTAnchor * me)
1.19 frystyk 347: {
1.64 frystyk 348: HTParentAnchor * parent = NULL;
1.19 frystyk 349: if (!me) {
1.86 frystyk 350: HTTRACE(ANCH_TRACE, "AnchorDelete No anchor found\n");
1.19 frystyk 351: return NULL;
352: }
1.64 frystyk 353: parent = me->parent;
1.86 frystyk 354: HTTRACE(ANCH_TRACE, "AnchorDelete Remove parent %p and children\n" _ parent);
1.19 frystyk 355:
356: /* Delete children */
357: if (parent->children) {
1.54 frystyk 358: int cnt = 0;
359: for (; cnt<CHILD_HASH_SIZE; cnt++) {
360: HTList * kids = parent->children[cnt];
361: if (kids) {
362: HTChildAnchor * child;
363: while ((child=(HTChildAnchor*)HTList_removeLastObject(kids))) {
364: HT_FREE(child->tag);
365: if (child->links) {
366: HTList * cur = child->links;
367: HTLink * pres;
368: while ((pres = (HTLink *) HTList_nextObject(cur)))
369: HTLink_delete(pres);
370: HTList_delete(child->links);
371: }
372: HT_FREE(child);
373: }
374: HTList_delete(kids);
375: parent->children[cnt] = NULL;
1.26 frystyk 376: }
1.19 frystyk 377: }
378: }
379: return delete_parent(parent);
380: }
381:
382:
383: /* DELETE ALL ANCHORS
384: ** ------------------
385: ** Deletes all anchors and return a list of all the HyperDocs found.
386: ** It is for the application to delete any HyperDocs.
1.39 frystyk 387: ** If NULL then no hyperdocs are returned
1.19 frystyk 388: ** Return YES if OK, else NO
389: */
1.35 frystyk 390: PUBLIC BOOL HTAnchor_deleteAll (HTList * documents)
1.19 frystyk 391: {
392: int cnt;
393: HTList *cur;
1.39 frystyk 394: if (!adult_table)
1.19 frystyk 395: return NO;
1.85 frystyk 396: for (cnt=0; cnt<PARENT_HASH_SIZE; cnt++) {
1.19 frystyk 397: if ((cur = adult_table[cnt])) {
398: HTParentAnchor *pres;
399: while ((pres = (HTParentAnchor *) HTList_nextObject(cur)) != NULL){
1.41 frystyk 400: void * doc = delete_family((HTAnchor *) pres);
401: if (doc && documents) HTList_addObject(documents, doc);
1.19 frystyk 402: }
403: }
404: HTList_delete(adult_table[cnt]);
405: }
1.43 frystyk 406: HT_FREE(adult_table);
1.19 frystyk 407: return YES;
408: }
409:
1.82 frystyk 410: /*
411: ** Deletes all the metadata associated with anchors but doesn't
412: ** delete the anchor link structure itself. This is much safer
413: ** than deleting the complete anchor structure as this represents the
414: ** complete Web the application has been in touch with
415: */
416: PUBLIC BOOL HTAnchor_clearAll (HTList * documents)
417: {
418: int cnt;
419: HTList * cur;
420: if (!adult_table) return NO;
1.85 frystyk 421: for (cnt=0; cnt<PARENT_HASH_SIZE; cnt++) {
1.82 frystyk 422: if ((cur = adult_table[cnt])) {
423: HTParentAnchor * pres;
424: while ((pres = (HTParentAnchor *) HTList_nextObject(cur))) {
425:
426: /* Then remove entity header information */
427: HTAnchor_clearHeader(pres);
428:
429: /* Delete the physical address */
430: HT_FREE(pres->physical);
431:
432: /* Register if we have a document on this anchor */
433: if (documents && pres->document)
434: HTList_addObject(documents, pres->document);
435: }
436: }
437: }
438: return YES;
439: }
1.19 frystyk 440:
1.54 frystyk 441: PRIVATE void delete_links (HTAnchor * me)
1.1 timbl 442: {
1.3 timbl 443: if (! me)
1.1 timbl 444: return;
445:
446: /* Recursively try to delete target anchors */
1.3 timbl 447: if (me->mainLink.dest) {
448: HTParentAnchor *parent = me->mainLink.dest->parent;
449: HTList_removeObject (parent->sources, me);
1.1 timbl 450: if (! parent->document) /* Test here to avoid calling overhead */
451: HTAnchor_delete (parent);
452: }
1.3 timbl 453: if (me->links) { /* Extra destinations */
1.1 timbl 454: HTLink *target;
1.12 frystyk 455: while ((target = (HTLink *) HTList_removeLastObject (me->links))) {
1.1 timbl 456: HTParentAnchor *parent = target->dest->parent;
1.3 timbl 457: HTList_removeObject (parent->sources, me);
1.1 timbl 458: if (! parent->document) /* Test here to avoid calling overhead */
459: HTAnchor_delete (parent);
460: }
461: }
462: }
463:
1.35 frystyk 464: PUBLIC BOOL HTAnchor_delete (HTParentAnchor * me)
1.1 timbl 465: {
1.54 frystyk 466: /* Don't delete if document is loaded */
467: if (!me || me->document) {
1.86 frystyk 468: HTTRACE(ANCH_TRACE, "Anchor...... Not deleted\n");
1.54 frystyk 469: return NO;
470: }
471:
472: /* Recursively try to delete target anchors */
473: delete_links ((HTAnchor *) me);
1.1 timbl 474:
1.54 frystyk 475: if (!HTList_isEmpty(me->sources)) { /* There are still incoming links */
476:
477: /*
478: ** Delete all outgoing links from children, if any
479: */
480: if (me->children) {
481: int cnt = 0;
482: for (; cnt<CHILD_HASH_SIZE; cnt++) {
483: HTList * kids = me->children[cnt];
484: if (kids) {
485: HTChildAnchor * child;
486: while ((child = (HTChildAnchor *) HTList_nextObject(kids)))
487: delete_links((HTAnchor *) child);
488: return NO; /* Parent not deleted */
489: }
490: }
491: }
1.1 timbl 492:
1.54 frystyk 493: /*
494: ** No more incoming links : kill everything
495: ** First, recursively delete children
496: */
497: if (me->children) {
498: int cnt = 0;
499: for (; cnt<CHILD_HASH_SIZE; cnt++) {
500: HTList * kids = me->children[cnt];
501: if (kids) {
502: HTChildAnchor * child;
503: while ((child=(HTChildAnchor *) HTList_removeLastObject(kids)))
504: delete_links((HTAnchor *) child);
505: HT_FREE(child->tag);
506: HT_FREE(child);
507: }
508: }
509: }
510: }
1.1 timbl 511:
1.54 frystyk 512: /* Now kill myself */
513: delete_parent(me);
514: return YES; /* Parent deleted */
515: #if 0
1.3 timbl 516: if (! HTList_isEmpty (me->sources)) { /* There are still incoming links */
1.1 timbl 517: /* Delete all outgoing links from children, if any */
1.3 timbl 518: HTList *kids = me->children;
1.12 frystyk 519: while ((child = (HTChildAnchor *) HTList_nextObject (kids)))
1.54 frystyk 520: delete_links ((HTAnchor *) child);
1.1 timbl 521: return NO; /* Parent not deleted */
522: }
523:
524: /* No more incoming links : kill everything */
525: /* First, recursively delete children */
1.12 frystyk 526: while ((child = (HTChildAnchor *) HTList_removeLastObject (me->children))) {
1.54 frystyk 527: delete_links ((HTAnchor *) child);
1.43 frystyk 528: HT_FREE(child->tag);
529: HT_FREE(child);
1.1 timbl 530: }
1.54 frystyk 531: #endif
1.69 frystyk 532: }
533:
534: /* FLATTEN ALL ANCHORS
535: ** -------------------
536: ** Flattens the anchor web structure into an array.
537: ** This is useful for calculating statistics, sorting
538: ** the parent anchors etc.
539: **
540: ** The caller can indicate the size of the array (total
541: ** number of anchors if known - otherwise 0).
542: **
543: ** Return an array that must be freed by the caller or
544: ** NULL if no anchors.
545: */
546: PUBLIC HTArray * HTAnchor_getArray (int growby)
547: {
548: int cnt;
549: HTArray * array = NULL;
550: HTList * cur = NULL;
551: if (!adult_table) return NULL;
552:
553: /* Allocate an array for the anchors */
1.87 frystyk 554: if (growby <= 0) growby = PARENT_HASH_SIZE;
1.69 frystyk 555: array = HTArray_new(growby);
556:
557: /* Traverse anchor structure */
1.85 frystyk 558: for (cnt=0; cnt<PARENT_HASH_SIZE; cnt++) {
1.69 frystyk 559: if ((cur = adult_table[cnt])) {
560: HTParentAnchor * pres = NULL;
561: while ((pres = (HTParentAnchor *) HTList_nextObject(cur)) != NULL) {
562: if (HTArray_addObject(array, pres) == NO) {
1.86 frystyk 563: HTTRACE(ANCH_TRACE, "Anchor...... Can't add object %p to array %p\n" _
564: pres _ array);
1.69 frystyk 565: break;
566: }
567: }
568: }
569: }
570: return array;
1.1 timbl 571: }
572:
1.17 frystyk 573: /* ------------------------------------------------------------------------- */
574: /* Data Access Methods */
575: /* ------------------------------------------------------------------------- */
1.1 timbl 576:
1.35 frystyk 577: PUBLIC HTParentAnchor * HTAnchor_parent (HTAnchor * me)
1.1 timbl 578: {
1.17 frystyk 579: return me ? me->parent : NULL;
1.1 timbl 580: }
581:
1.41 frystyk 582: PUBLIC void HTAnchor_setDocument (HTParentAnchor * me, void * doc)
1.1 timbl 583: {
1.41 frystyk 584: if (me) me->document = doc;
1.1 timbl 585: }
586:
1.41 frystyk 587: PUBLIC void * HTAnchor_document (HTParentAnchor * me)
1.1 timbl 588: {
1.17 frystyk 589: return me ? me->document : NULL;
1.1 timbl 590: }
591:
1.53 frystyk 592: PUBLIC char * HTAnchor_address (HTAnchor * me)
593: {
594: char *addr = NULL;
595: if (me) {
596: if (((HTParentAnchor *) me == me->parent) ||
597: !((HTChildAnchor *) me)->tag) { /* it's an adult or no tag */
598: StrAllocCopy (addr, me->parent->address);
599: }
600: else { /* it's a named child */
601: if ((addr = (char *) HT_MALLOC(2 + strlen (me->parent->address) + \
602: strlen (((HTChildAnchor *) me)->tag))) == NULL)
603: HT_OUTOFMEM("HTAnchor_address");
604: sprintf (addr, "%s#%s", me->parent->address,
605: ((HTChildAnchor *) me)->tag);
606: }
607: }
608: return addr;
609: }
610:
1.51 frystyk 611: /*
1.53 frystyk 612: ** We resolve the child address with respect to either a base URL,
613: ** a content-location, or to the request-URI
1.51 frystyk 614: */
1.53 frystyk 615: PUBLIC char * HTAnchor_expandedAddress (HTAnchor * me)
1.1 timbl 616: {
1.17 frystyk 617: char *addr = NULL;
618: if (me) {
1.53 frystyk 619: HTParentAnchor * parent = me->parent;
1.63 frystyk 620: char * base = HTAnchor_base(parent);
1.17 frystyk 621: if (((HTParentAnchor *) me == me->parent) ||
622: !((HTChildAnchor *) me)->tag) { /* it's an adult or no tag */
1.52 frystyk 623: StrAllocCopy(addr, base);
1.51 frystyk 624: } else { /* it's a named child */
1.52 frystyk 625: if ((addr = (char *) HT_MALLOC(2 + strlen(base) + strlen(((HTChildAnchor *) me)->tag))) == NULL)
1.43 frystyk 626: HT_OUTOFMEM("HTAnchor_address");
1.52 frystyk 627: sprintf (addr, "%s#%s", base, ((HTChildAnchor *) me)->tag);
1.17 frystyk 628: }
1.1 timbl 629: }
1.17 frystyk 630: return addr;
1.1 timbl 631: }
632:
1.52 frystyk 633: /* Physical Address
634: ** ----------------
635: */
636: PUBLIC char * HTAnchor_physical (HTParentAnchor * me)
637: {
1.53 frystyk 638: return me ? me->physical ? me->physical : me->address : NULL;
1.52 frystyk 639: }
640:
1.53 frystyk 641: PUBLIC void HTAnchor_setPhysical (HTParentAnchor * me, char * physical)
1.52 frystyk 642: {
643: if (!me || !physical) {
1.86 frystyk 644: HTTRACE(ANCH_TRACE, "HTAnchor.... setPhysical, called with null argument\n");
1.52 frystyk 645: return;
646: }
647: StrAllocCopy(me->physical, physical);
648: }
649:
1.53 frystyk 650: PUBLIC void HTAnchor_clearPhysical(HTParentAnchor * me)
651: {
652: if (me) HT_FREE(me->physical);
653: }
654:
655: /*
656: ** Children information
657: */
1.35 frystyk 658: PUBLIC BOOL HTAnchor_hasChildren (HTParentAnchor * me)
1.17 frystyk 659: {
1.54 frystyk 660: return (me && me->children);
1.74 frystyk 661: }
662:
663: /*
664: ** Fix up a simple routine to see if this anchor is a (ChildAnchor *)
665: ** Seem to be doing it all over the place, so simplify!
666: */
667: PUBLIC BOOL HTAnchor_isChild (HTAnchor * me)
668: {
669: return (me && (HTParentAnchor *) me != me->parent);
670: }
671:
672: PUBLIC char * HTAnchor_view (HTAnchor * me)
673: {
674: char * view = NULL;
675: if (me && (HTParentAnchor *) me != me->parent && ((HTChildAnchor *) me)->tag)
676: StrAllocCopy(view, ((HTChildAnchor *) me)->tag);
677: return view;
1.17 frystyk 678: }
1.1 timbl 679:
1.63 frystyk 680: /* ------------------------------------------------------------------------- */
681: /* Entity Header Information */
682: /* ------------------------------------------------------------------------- */
683:
1.59 frystyk 684: /*
1.63 frystyk 685: ** Take the relevant infomration from the response object and cache it
686: ** in the anchor object. We inherit the information that is already
687: ** parsed in the response along with the unparsed headers.
1.52 frystyk 688: */
1.63 frystyk 689: PUBLIC BOOL HTAnchor_update (HTParentAnchor * me, HTResponse * response)
1.52 frystyk 690: {
1.63 frystyk 691: if (me && response) {
1.84 frystyk 692: HTCachable cachable = HTResponse_isCachable(response);
1.59 frystyk 693:
1.84 frystyk 694: if (cachable == HT_CACHE_ETAG) {
1.79 frystyk 695: char * etag = HTResponse_etag(response);
1.86 frystyk 696: HTTRACE(ANCH_TRACE, "HTAnchor.... Updating etag for %p\n" _ me);
1.79 frystyk 697: if (etag) {
698: HTAnchor_setEtag(me, etag);
699: return YES;
700: }
1.84 frystyk 701:
702: } else if (cachable == HT_CACHE_NOT_MODIFIED) {
1.86 frystyk 703: HTTRACE(ANCH_TRACE, "HTAnchor.... Information is up to date for %p\n" _ me);
1.84 frystyk 704: return YES;
705:
706: } else if (cachable == HT_CACHE_ALL) {
1.81 frystyk 707: char * etag = HTResponse_etag(response);
1.86 frystyk 708: HTTRACE(ANCH_TRACE, "HTAnchor.... Updating metainformation for %p\n" _ me);
1.79 frystyk 709:
710: /*
711: ** The content length and type is already parsed at this point
712: ** in time. We also check for format parameters like charset etc.
713: ** and copy the contents in the anchor object
714: */
715: me->content_length = HTResponse_length(response);
716: me->content_type = HTResponse_format(response);
717: me->type_parameters = HTResponse_formatParam(response);
1.80 frystyk 718: me->content_encoding = HTResponse_encoding(response);
1.63 frystyk 719:
1.81 frystyk 720: /* Don't forget the etag as well */
721: if (etag) HTAnchor_setEtag(me, etag);
722:
1.79 frystyk 723: /*
724: ** Inherit all the unparsed headers - we may need them later!
725: */
1.83 frystyk 726: if (me->headers) HTAssocList_delete(me->headers);
1.79 frystyk 727: me->headers = HTResponse_handOverHeader(response);
728:
729: /*
730: ** Notifify the response object not to delete the lists that we
731: ** have inherited in the anchor object
732: */
733: HTResponse_isCached(response, YES);
1.59 frystyk 734:
1.84 frystyk 735: /*
736: ** Set the datestamp of when the anchor was updated if we didn't
737: ** get any in the response
738: */
739: if (!HTAssocList_findObject(me->headers, "date"))
740: HTAnchor_setDate(me, time(NULL));
741:
1.79 frystyk 742: return YES;
743: }
1.59 frystyk 744: }
745: return NO;
1.52 frystyk 746: }
747:
748: /*
749: ** Variants. If this anchor has any variants then keep them in a list
750: ** so that we can find them later. The list is simply a list of
751: ** parent anchors.
752: */
753: PUBLIC HTList * HTAnchor_variants (HTParentAnchor * me)
1.17 frystyk 754: {
1.52 frystyk 755: return me ? me->variants : NULL;
1.17 frystyk 756: }
1.1 timbl 757:
1.52 frystyk 758: PUBLIC BOOL HTAnchor_addVariant (HTParentAnchor * me,
759: HTParentAnchor * variant)
1.1 timbl 760: {
1.52 frystyk 761: if (me && variant) {
762: if (!me->variants) me->variants = HTList_new();
763: return HTList_addObject(me->variants, variant);
764: }
765: return NO;
1.17 frystyk 766: }
767:
1.52 frystyk 768: PUBLIC BOOL HTAnchor_deleteVariant (HTParentAnchor * me,
769: HTParentAnchor * variant)
1.17 frystyk 770: {
1.52 frystyk 771: return (me && variant) ? HTList_removeObject(me->variants, variant) : NO;
1.9 frystyk 772: }
1.1 timbl 773:
1.52 frystyk 774: /*
775: ** Is this resource an index?
1.17 frystyk 776: */
1.52 frystyk 777: PUBLIC void HTAnchor_clearIndex (HTParentAnchor * me)
778: {
779: if (me) me->isIndex = NO;
780: }
1.17 frystyk 781:
1.52 frystyk 782: PUBLIC void HTAnchor_setIndex (HTParentAnchor * me)
1.1 timbl 783: {
1.52 frystyk 784: if (me) me->isIndex = YES;
1.1 timbl 785: }
786:
1.52 frystyk 787: PUBLIC BOOL HTAnchor_isIndex (HTParentAnchor * me)
1.1 timbl 788: {
1.52 frystyk 789: return me ? me->isIndex : NO;
1.27 frystyk 790: }
791:
1.52 frystyk 792: /* Content Base
1.51 frystyk 793: ** ------------
794: */
795: PUBLIC char * HTAnchor_base (HTParentAnchor * me)
796: {
1.63 frystyk 797: if (me) {
798: if (me->content_base) return me->content_base;
799: if (me->headers) {
800: char * base = HTAssocList_findObject(me->headers, "content-base");
801: /*
802: ** If no base is found then take the content-location if this
803: ** is present and is absolute, else use the Request-URI.
804: */
1.66 frystyk 805: if (base) StrAllocCopy(me->content_base, HTStrip(base));
1.63 frystyk 806: }
1.66 frystyk 807:
808: /*
809: ** Try the content location if any
810: */
811: {
812: char * location = HTAnchor_location(me);
813: StrAllocCopy(me->content_base,
814: (location && HTURL_isAbsolute(location)) ?
815: location : me->address);
816: }
817: return me->content_base;
1.63 frystyk 818: }
819: return NULL;
1.51 frystyk 820: }
821:
822: PUBLIC BOOL HTAnchor_setBase (HTParentAnchor * me, char * base)
823: {
1.63 frystyk 824: if (me && base) {
825: StrAllocCopy(me->content_base, base);
826: return YES;
1.51 frystyk 827: }
1.63 frystyk 828: return NO;
1.51 frystyk 829: }
830:
1.52 frystyk 831: /* Content Location
832: ** ----------------
1.27 frystyk 833: */
1.52 frystyk 834: PUBLIC char * HTAnchor_location (HTParentAnchor * me)
1.27 frystyk 835: {
1.63 frystyk 836: if (me) {
837: if (me->content_location)
838: return *me->content_location ? me->content_location : NULL;
839: if (me->headers) {
840: char * location = HTAssocList_findObject(me->headers, "content-location");
841: StrAllocCopy(me->content_location, location ? HTStrip(location) : "");
842: return me->content_location;
843: }
844: }
845: return NULL;
1.27 frystyk 846: }
847:
1.53 frystyk 848: /*
849: ** Expand the location relative to the base URL if any, otherwise the
850: ** anchor address it self
851: */
1.52 frystyk 852: PUBLIC BOOL HTAnchor_setLocation (HTParentAnchor * me, char * location)
1.27 frystyk 853: {
1.53 frystyk 854: if (me && location) {
1.63 frystyk 855: char * base = HTAnchor_base(me);
856: if (!base) base = me->address;
1.53 frystyk 857: me->content_location = HTParse(location, base, PARSE_ALL);
858: return YES;
1.52 frystyk 859: }
1.53 frystyk 860: return NO;
1.1 timbl 861: }
862:
1.72 frystyk 863: /* Meta tags
864: ** ---------
865: */
866: PUBLIC HTAssocList * HTAnchor_meta (HTParentAnchor * me)
867: {
868: return me ? me->meta_tags : NULL;
869: }
870:
871: PUBLIC BOOL HTAnchor_addMeta (HTParentAnchor * me,
872: const char * name, const char * value)
873: {
874: if (me) {
875: if (!me->meta_tags) me->meta_tags = HTAssocList_new();
876: return HTAssocList_replaceObject(me->meta_tags, name, value);
877: }
878: return NO;
879: }
880:
881: /*
882: ** robots meta tag
883: */
884: PUBLIC char * HTAnchor_robots (HTParentAnchor * me)
885: {
886: if (me && me->meta_tags) {
887: char * robots = HTAssocList_findObject(me->meta_tags, "robots");
888: return robots;
889: }
890: return NULL;
891: }
892:
1.52 frystyk 893: /* Content-Type
894: ** ------------
1.17 frystyk 895: */
1.35 frystyk 896: PUBLIC HTFormat HTAnchor_format (HTParentAnchor * me)
1.17 frystyk 897: {
898: return me ? me->content_type : NULL;
899: }
1.1 timbl 900:
1.35 frystyk 901: PUBLIC void HTAnchor_setFormat (HTParentAnchor * me, HTFormat form)
1.1 timbl 902: {
1.17 frystyk 903: if (me) me->content_type = form;
1.1 timbl 904: }
905:
1.52 frystyk 906: PUBLIC HTAssocList * HTAnchor_formatParam (HTParentAnchor * me)
907: {
908: return me ? me->type_parameters : NULL;
909: }
910:
911: PUBLIC BOOL HTAnchor_addFormatParam (HTParentAnchor * me,
912: const char * name, const char * value)
913: {
914: if (me) {
915: if (!me->type_parameters) me->type_parameters = HTAssocList_new();
916: return HTAssocList_replaceObject(me->type_parameters, name, value);
917: }
918: return NO;
919: }
920:
1.17 frystyk 921: /*
922: ** Charset parameter to Content-Type
1.1 timbl 923: */
1.35 frystyk 924: PUBLIC HTCharset HTAnchor_charset (HTParentAnchor * me)
1.1 timbl 925: {
1.52 frystyk 926: if (me && me->type_parameters) {
927: char * charset = HTAssocList_findObject(me->type_parameters,"charset");
928: return HTAtom_for(charset);
929: }
930: return NULL;
1.1 timbl 931: }
932:
1.52 frystyk 933: PUBLIC BOOL HTAnchor_setCharset (HTParentAnchor * me, HTCharset charset)
1.1 timbl 934: {
1.52 frystyk 935: return HTAnchor_addFormatParam(me, "charset", HTAtom_name(charset));
1.1 timbl 936: }
937:
1.17 frystyk 938: /*
1.20 frystyk 939: ** Level parameter to Content-Type
940: */
1.35 frystyk 941: PUBLIC HTLevel HTAnchor_level (HTParentAnchor * me)
1.20 frystyk 942: {
1.52 frystyk 943: if (me && me->type_parameters) {
944: char * level = HTAssocList_findObject(me->type_parameters, "level");
945: return HTAtom_for(level);
946: }
947: return NULL;
1.20 frystyk 948: }
949:
1.52 frystyk 950: PUBLIC BOOL HTAnchor_setLevel (HTParentAnchor * me, HTLevel level)
1.20 frystyk 951: {
1.52 frystyk 952: return HTAnchor_addFormatParam(me, "level", HTAtom_name(level));
1.20 frystyk 953: }
954:
955: /*
1.17 frystyk 956: ** Content Encoding
957: */
1.47 frystyk 958: PUBLIC HTList * HTAnchor_encoding (HTParentAnchor * me)
1.1 timbl 959: {
1.17 frystyk 960: return me ? me->content_encoding : NULL;
1.1 timbl 961: }
962:
1.63 frystyk 963: PUBLIC BOOL HTAnchor_addEncoding (HTParentAnchor * me, HTEncoding encoding)
1.17 frystyk 964: {
1.47 frystyk 965: if (me && encoding) {
966: if (!me->content_encoding) me->content_encoding = HTList_new();
967: return HTList_addObject(me->content_encoding, encoding);
968: }
969: return NO;
1.17 frystyk 970: }
971:
1.77 frystyk 972: PUBLIC BOOL HTAnchor_deleteEncoding (HTParentAnchor * me, HTEncoding encoding)
1.67 frystyk 973: {
974: return (me && me->content_encoding && encoding) ?
975: HTList_removeObject(me->content_encoding, encoding) : NO;
976: }
977:
1.77 frystyk 978: PUBLIC BOOL HTAnchor_deleteEncodingAll (HTParentAnchor * me)
979: {
980: if (me && me->content_encoding) {
981: HTList_delete(me->content_encoding);
982: me->content_encoding = NULL;
983: return YES;
984: }
985: return NO;
986: }
987:
1.17 frystyk 988: /*
1.21 frystyk 989: ** Content Language
990: */
1.47 frystyk 991: PUBLIC HTList * HTAnchor_language (HTParentAnchor * me)
1.21 frystyk 992: {
1.63 frystyk 993: if (me) {
994: if (me->content_language == NULL && me->headers) {
995: char * value = HTAssocList_findObject(me->headers, "content-language");
996: char * field;
997: if (!me->content_language) me->content_language = HTList_new();
998: while ((field = HTNextField(&value)) != NULL) {
999: char * lc = field;
1000: while ((*lc = TOLOWER(*lc))) lc++;
1001: HTList_addObject(me->content_language, HTAtom_for(field));
1002: }
1003: }
1004: return me->content_language;
1005: }
1006: return NULL;
1.21 frystyk 1007: }
1008:
1.63 frystyk 1009: PUBLIC BOOL HTAnchor_addLanguage (HTParentAnchor * me, HTLanguage language)
1.21 frystyk 1010: {
1.47 frystyk 1011: if (me && language) {
1012: if (!me->content_language) me->content_language = HTList_new();
1013: return HTList_addObject(me->content_language, language);
1.77 frystyk 1014: }
1015: return NO;
1016: }
1017:
1018: PUBLIC BOOL HTAnchor_deleteLanguageAll (HTParentAnchor * me)
1019: {
1020: if (me && me->content_language) {
1021: HTList_delete(me->content_language);
1022: me->content_language = NULL;
1023: return YES;
1.47 frystyk 1024: }
1025: return NO;
1.21 frystyk 1026: }
1027:
1028: /*
1.17 frystyk 1029: ** Content Length
1030: */
1.35 frystyk 1031: PUBLIC long int HTAnchor_length (HTParentAnchor * me)
1.1 timbl 1032: {
1.17 frystyk 1033: return me ? me->content_length : -1;
1.1 timbl 1034: }
1035:
1.35 frystyk 1036: PUBLIC void HTAnchor_setLength (HTParentAnchor * me, long int length)
1.17 frystyk 1037: {
1038: if (me) me->content_length = length;
1039: }
1.1 timbl 1040:
1.49 frystyk 1041: PUBLIC void HTAnchor_addLength (HTParentAnchor * me, long int deltalength)
1042: {
1043: if (me) {
1044: if (me->content_length < 0)
1045: me->content_length = deltalength;
1046: else
1047: me->content_length += deltalength;
1048: }
1049: }
1050:
1.17 frystyk 1051: /*
1.63 frystyk 1052: ** Content Transfer Encoding
1053: */
1.73 frystyk 1054: PUBLIC HTEncoding HTAnchor_contentTransferEncoding (HTParentAnchor * me)
1.63 frystyk 1055: {
1.73 frystyk 1056: return me ? me->cte : NULL;
1.63 frystyk 1057: }
1058:
1.73 frystyk 1059: PUBLIC void HTAnchor_setContentTransferEncoding (HTParentAnchor * me, HTEncoding cte)
1.63 frystyk 1060: {
1.73 frystyk 1061: if (me) me->cte = cte;
1.63 frystyk 1062: }
1063:
1064: /*
1.17 frystyk 1065: ** Allowed methods (Allow)
1.1 timbl 1066: */
1.63 frystyk 1067: PUBLIC HTMethod HTAnchor_allow (HTParentAnchor * me)
1.17 frystyk 1068: {
1.63 frystyk 1069: if (me) {
1070: if (me->allow == 0 && me->headers) {
1071: char * value = HTAssocList_findObject(me->headers, "allow");
1072: char * field;
1073:
1074: /*
1075: ** We treat methods allowed on this object as case insensitive
1076: ** in case we receive the information over the net - that is -
1077: ** in the Allow header.
1078: */
1079: while ((field = HTNextField(&value)) != NULL) {
1080: HTMethod new_method;
1081: if ((new_method = HTMethod_enum(field)) != METHOD_INVALID)
1082: me->allow |= new_method;
1083: }
1084: }
1085: return me->allow;
1086: }
1087: return METHOD_INVALID;
1.17 frystyk 1088: }
1.1 timbl 1089:
1.63 frystyk 1090: PUBLIC void HTAnchor_setAllow (HTParentAnchor * me, HTMethod methodset)
1.1 timbl 1091: {
1.63 frystyk 1092: if (me) me->allow = methodset;
1.1 timbl 1093: }
1094:
1.63 frystyk 1095: PUBLIC void HTAnchor_appendAllow (HTParentAnchor * me, HTMethod methodset)
1.1 timbl 1096: {
1.63 frystyk 1097: if (me) me->allow |= methodset;
1.1 timbl 1098: }
1099:
1.17 frystyk 1100: /*
1101: ** Title
1.2 timbl 1102: */
1.46 frystyk 1103: PUBLIC const char * HTAnchor_title (HTParentAnchor * me)
1.1 timbl 1104: {
1.63 frystyk 1105: if (me) {
1106: if (me->title)
1107: return *me->title ? me->title : NULL;
1108: if (me->headers) {
1109: char * value = HTAssocList_findObject(me->headers, "title");
1110: char * title;
1111: if ((title = HTNextField(&value))) StrAllocCopy(me->title, title);
1112: return me->title;
1113: }
1114: }
1115: return NULL;
1.17 frystyk 1116: }
1.1 timbl 1117:
1.46 frystyk 1118: PUBLIC void HTAnchor_setTitle (HTParentAnchor * me, const char * title)
1.17 frystyk 1119: {
1.76 frystyk 1120: if (me && title) {
1121: char * ptr;
1122: StrAllocCopy(me->title, title);
1123: ptr = me->title;
1124: while (*ptr) {
1125: if (isspace((int) *ptr)) *ptr = ' ';
1126: ptr++;
1127: }
1128: }
1.2 timbl 1129: }
1130:
1.46 frystyk 1131: PUBLIC void HTAnchor_appendTitle (HTParentAnchor * me, const char * title)
1.17 frystyk 1132: {
1133: if (me && title) StrAllocCat(me->title, title);
1134: }
1.2 timbl 1135:
1.17 frystyk 1136: /*
1137: ** Version
1.2 timbl 1138: */
1.41 frystyk 1139: PUBLIC char * HTAnchor_version (HTParentAnchor * me)
1.17 frystyk 1140: {
1.63 frystyk 1141: if (me) {
1142: if (me->version)
1143: return *me->version ? me->version : NULL;
1144: if (me->headers) {
1145: char * value = HTAssocList_findObject(me->headers, "version");
1146: char * version;
1147: if ((version = HTNextField(&value)))
1148: StrAllocCopy(me->version, version);
1149: return me->version;
1150: }
1151: }
1152: return NULL;
1.17 frystyk 1153: }
1.2 timbl 1154:
1.46 frystyk 1155: PUBLIC void HTAnchor_setVersion (HTParentAnchor * me, const char * version)
1.2 timbl 1156: {
1.17 frystyk 1157: if (me && version) StrAllocCopy(me->version, version);
1.2 timbl 1158: }
1159:
1.17 frystyk 1160: /*
1161: ** Derived from
1.2 timbl 1162: */
1.41 frystyk 1163: PUBLIC char * HTAnchor_derived (HTParentAnchor * me)
1.17 frystyk 1164: {
1.63 frystyk 1165: if (me) {
1166: if (me->derived_from)
1167: return *me->derived_from ? me->derived_from : NULL;
1168: if (me->headers) {
1169: char * value = HTAssocList_findObject(me->headers, "derived-from");
1170: char * derived_from;
1171: if ((derived_from = HTNextField(&value)))
1172: StrAllocCopy(me->derived_from, derived_from);
1173: return me->derived_from;
1174: }
1175: }
1176: return NULL;
1.17 frystyk 1177: }
1178:
1.46 frystyk 1179: PUBLIC void HTAnchor_setDerived (HTParentAnchor * me, const char *derived_from)
1.17 frystyk 1180: {
1181: if (me && derived_from) StrAllocCopy(me->derived_from, derived_from);
1182: }
1.2 timbl 1183:
1.17 frystyk 1184: /*
1.52 frystyk 1185: ** Content MD5
1186: */
1187: PUBLIC char * HTAnchor_md5 (HTParentAnchor * me)
1188: {
1.63 frystyk 1189: if (me) {
1190: if (me->content_md5)
1191: return *me->content_md5 ? me->content_md5 : NULL;
1192: if (me->headers) {
1193: char * value = HTAssocList_findObject(me->headers, "content-md5");
1194: char * md5;
1195: if ((md5 = HTNextField(&value))) StrAllocCopy(me->content_md5,md5);
1196: return me->content_md5;
1197: }
1198: }
1199: return NULL;
1.52 frystyk 1200: }
1201:
1.63 frystyk 1202: PUBLIC BOOL HTAnchor_setMd5 (HTParentAnchor * me, const char * hash)
1.52 frystyk 1203: {
1.63 frystyk 1204: if (me && hash) {
1205: StrAllocCopy(me->content_md5, hash);
1206: return YES;
1207: }
1208: return NO;
1.52 frystyk 1209: }
1210:
1211: /*
1.28 frystyk 1212: ** Date
1213: */
1.41 frystyk 1214: PUBLIC time_t HTAnchor_date (HTParentAnchor * me)
1215: {
1.63 frystyk 1216: if (me) {
1217: if (me->date == (time_t) -1 && me->headers) {
1218: char * value = HTAssocList_findObject(me->headers, "date");
1219: if (value) me->date = HTParseTime(value, NULL, YES);
1220: }
1221: return me->date;
1222: }
1223: return (time_t) -1;
1.41 frystyk 1224: }
1225:
1.46 frystyk 1226: PUBLIC void HTAnchor_setDate (HTParentAnchor * me, const time_t date)
1.28 frystyk 1227: {
1.41 frystyk 1228: if (me) me->date = date;
1.28 frystyk 1229: }
1230:
1231: /*
1232: ** Expires
1233: */
1.41 frystyk 1234: PUBLIC time_t HTAnchor_expires (HTParentAnchor * me)
1235: {
1.63 frystyk 1236: if (me) {
1237: if (me->expires == (time_t) -1 && me->headers) {
1238: char * value = HTAssocList_findObject(me->headers, "expires");
1239: if (value) me->expires = HTParseTime(value, NULL, YES);
1240: }
1241: return me->expires;
1242: }
1243: return (time_t) -1;
1.41 frystyk 1244: }
1245:
1.46 frystyk 1246: PUBLIC void HTAnchor_setExpires (HTParentAnchor * me, const time_t expires)
1.28 frystyk 1247: {
1.41 frystyk 1248: if (me) me->expires = expires;
1.28 frystyk 1249: }
1250:
1251: /*
1252: ** Last Modified
1253: */
1.41 frystyk 1254: PUBLIC time_t HTAnchor_lastModified (HTParentAnchor * me)
1255: {
1.63 frystyk 1256: if (me) {
1257: if (me->last_modified == (time_t) -1 && me->headers) {
1258: char * value = HTAssocList_findObject(me->headers,"last-modified");
1259: if (value) me->last_modified = HTParseTime(value, NULL, YES);
1260: }
1261: return me->last_modified;
1262: }
1263: return (time_t) -1;
1.41 frystyk 1264: }
1265:
1.46 frystyk 1266: PUBLIC void HTAnchor_setLastModified (HTParentAnchor * me, const time_t lm)
1.28 frystyk 1267: {
1.41 frystyk 1268: if (me) me->last_modified = lm;
1.28 frystyk 1269: }
1270:
1271: /*
1.59 frystyk 1272: ** Age
1273: */
1274: PUBLIC time_t HTAnchor_age (HTParentAnchor * me)
1275: {
1.63 frystyk 1276: if (me) {
1277: if (me->age == (time_t) -1 && me->headers) {
1278: char * value = HTAssocList_findObject(me->headers, "age");
1279: if (value) me->age = atol(value);
1280: }
1281: return me->age;
1282: }
1283: return (time_t) -1;
1.59 frystyk 1284: }
1285:
1286: PUBLIC void HTAnchor_setAge (HTParentAnchor * me, const time_t age)
1287: {
1288: if (me) me->age = age;
1289: }
1290:
1291: /*
1.52 frystyk 1292: ** Entity Tag
1293: */
1294: PUBLIC char * HTAnchor_etag (HTParentAnchor * me)
1295: {
1.63 frystyk 1296: if (me) {
1297: if (me->etag)
1298: return *me->etag ? me->etag : NULL;
1299: if (me->headers) {
1300: char * value = HTAssocList_findObject(me->headers, "etag");
1301: char * etag;
1302: if ((etag = HTNextField(&value))) StrAllocCopy(me->etag, etag);
1303: return me->etag;
1304: }
1305: }
1306:
1.52 frystyk 1307: return me ? me->etag : NULL;
1308: }
1309:
1310: PUBLIC void HTAnchor_setEtag (HTParentAnchor * me, const char * etag)
1311: {
1.87.2.1! kahan 1312: /* JK: add a new etag if it doesn't exist or if the value has changed */
! 1313: if (me && etag && ((me->etag == NULL) || strcmp (me->etag, etag)))
! 1314: StrAllocCopy(me->etag, etag);
1.52 frystyk 1315: }
1316:
1317: PUBLIC BOOL HTAnchor_isEtagWeak (HTParentAnchor * me)
1318: {
1319: return (me && me->etag && !strncasecomp(me->etag, "W/", 2));
1320: }
1321:
1322: /*
1.63 frystyk 1323: ** Original headers (if any)
1.17 frystyk 1324: */
1.63 frystyk 1325: PUBLIC HTAssocList * HTAnchor_header (HTParentAnchor * me)
1.2 timbl 1326: {
1.63 frystyk 1327: return me ? me->headers : NULL;
1.2 timbl 1328: }
1329:
1.63 frystyk 1330: PUBLIC BOOL HTAnchor_setHeader (HTParentAnchor * me, HTAssocList * headers)
1.2 timbl 1331: {
1.17 frystyk 1332: if (me) {
1.63 frystyk 1333: me->headers = headers;
1334: return YES;
1.17 frystyk 1335: }
1.63 frystyk 1336: return NO;
1.2 timbl 1337: }
1338:
1.23 frystyk 1339: /*
1.59 frystyk 1340: ** Validate anchor values and finish up parsing
1.2 timbl 1341: */
1.59 frystyk 1342: PUBLIC void HTAnchor_setHeaderParsed (HTParentAnchor * me)
1.2 timbl 1343: {
1.59 frystyk 1344: if (me) {
1.86 frystyk 1345: HTTRACE(ANCH_TRACE, "HTAnchor.... Anchor is parsed\n");
1.59 frystyk 1346: me->header_parsed = YES;
1347: }
1.23 frystyk 1348: }
1349:
1.59 frystyk 1350: PUBLIC BOOL HTAnchor_headerParsed (HTParentAnchor * me)
1.23 frystyk 1351: {
1.59 frystyk 1352: return (me ? me->header_parsed : NO);
1.2 timbl 1353: }
1354:
1.17 frystyk 1355: /* Clear Header Information
1356: ** ------------------------
1357: */
1.35 frystyk 1358: PUBLIC void HTAnchor_clearHeader (HTParentAnchor * me)
1.2 timbl 1359: {
1.86 frystyk 1360: HTTRACE(ANCH_TRACE, "HTAnchor.... Clear all header information\n");
1.63 frystyk 1361: me->allow = METHOD_INVALID;
1.48 frystyk 1362: if (me->content_encoding) {
1363: HTList_delete(me->content_encoding);
1.65 frystyk 1364: me->content_encoding = NULL;
1.48 frystyk 1365: }
1.17 frystyk 1366: if (me->content_language) {
1367: HTList_delete(me->content_language);
1.65 frystyk 1368: me->content_language = NULL;
1.9 frystyk 1369: }
1.51 frystyk 1370: HT_FREE(me->content_base);
1371: HT_FREE(me->content_location);
1.17 frystyk 1372: me->content_length = -1; /* Invalid */
1.57 frystyk 1373:
1.59 frystyk 1374: /* Delete the title */
1375: HT_FREE(me->title);
1376:
1.57 frystyk 1377: /* Clear the content type */
1.17 frystyk 1378: me->content_type = WWW_UNKNOWN;
1.52 frystyk 1379: if (me->type_parameters) {
1380: HTAssocList_delete(me->type_parameters);
1381: me->type_parameters = NULL;
1.72 frystyk 1382: }
1383:
1384: /* Meta tags */
1385: if (me->meta_tags) {
1386: HTAssocList_delete(me->meta_tags);
1387: me->meta_tags = NULL;
1.52 frystyk 1388: }
1.57 frystyk 1389:
1390: /* Dates etc. */
1.28 frystyk 1391: me->date = (time_t) -1;
1392: me->expires = (time_t) -1;
1393: me->last_modified = (time_t) -1;
1.59 frystyk 1394: me->age = (time_t) -1;
1.17 frystyk 1395:
1.43 frystyk 1396: HT_FREE(me->derived_from);
1397: HT_FREE(me->version);
1.58 frystyk 1398: HT_FREE(me->etag);
1.63 frystyk 1399:
1400: /* Delete any original headers */
1401: if (me->headers) HTAssocList_delete(me->headers);
1402: me->headers = NULL;
1.1 timbl 1403: }
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