Annotation of libwww/Library/src/HTAnchor.c, revision 1.81
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.
1.81 ! frystyk 6: ** @(#) $Id: HTAnchor.c,v 1.80 1998/10/20 13:08:29 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:
1.70 frystyk 28: #define HASH_SIZE 599 /* Arbitrary prime. Memory/speed tradeoff */
29: #define CHILD_HASH_SIZE 97 /* Often smaller than hash of parents */
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) {
1.54 frystyk 83: if (ANCH_TRACE) HTTrace("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)) {
1.54 frystyk 112: if (ANCH_TRACE)
113: HTTrace("Child Anchor %p of parent %p with name `%s' already exists.\n",
114: (void *) child, (void *) parent, tag);
115: return child;
1.1 timbl 116: }
117: }
1.54 frystyk 118: }
119:
120: /* If not found then create a new child anchor */
1.17 frystyk 121: child = HTChildAnchor_new();
1.54 frystyk 122: HTList_addObject(kids, (void *) child);
1.17 frystyk 123: child->parent = parent;
1.54 frystyk 124: if (tag) StrAllocCopy(child->tag, tag);
1.17 frystyk 125: if (ANCH_TRACE)
1.54 frystyk 126: HTTrace("Child Anchor New Anchor %p named `%s' is child of %p\n",
1.46 frystyk 127: (void *) child, tag ? tag : (const char *) "", (void *)parent);
1.17 frystyk 128: return child;
1.1 timbl 129: }
130:
131:
132: /* Create new or find old named anchor
133: ** -----------------------------------
134: **
1.3 timbl 135: ** Me one is for a reference which is found in a document, and might
1.1 timbl 136: ** not be already loaded.
137: ** Note: You are not guaranteed a new anchor -- you might get an old one,
138: ** like with fonts.
139: */
1.46 frystyk 140: PUBLIC HTAnchor * HTAnchor_findAddress (const char * address)
1.1 timbl 141: {
1.75 frystyk 142: char *tag = HTParse (address, "", PARSE_VIEW); /* Any tags? */
1.1 timbl 143:
1.16 frystyk 144: /* If the address represents a sub-anchor, we recursively load its parent,
145: then we create a child anchor within that document. */
146: if (*tag) {
1.34 frystyk 147: char *addr = HTParse(address, "", PARSE_ACCESS | PARSE_HOST |
148: PARSE_PATH | PARSE_PUNCTUATION);
149: HTParentAnchor * parent = (HTParentAnchor*) HTAnchor_findAddress(addr);
150: HTChildAnchor * child = HTAnchor_findChild(parent, tag);
1.43 frystyk 151: HT_FREE(addr);
152: HT_FREE(tag);
1.34 frystyk 153: return (HTAnchor *) child;
1.16 frystyk 154: } else { /* Else check whether we have this node */
155: int hash;
1.46 frystyk 156: const char *p;
1.16 frystyk 157: HTList * adults;
158: HTList *grownups;
159: HTParentAnchor * foundAnchor;
1.34 frystyk 160: char *newaddr = NULL;
161: StrAllocCopy(newaddr, address); /* Get our own copy */
1.43 frystyk 162: HT_FREE(tag);
1.38 frystyk 163: newaddr = HTSimplify(&newaddr);
1.34 frystyk 164:
1.16 frystyk 165: /* Select list from hash table */
166: for(p=newaddr, hash=0; *p; p++)
167: hash = (int) ((hash * 3 + (*(unsigned char*)p)) % HASH_SIZE);
1.33 frystyk 168: if (!adult_table) {
1.43 frystyk 169: if ((adult_table = (HTList* *) HT_CALLOC(HASH_SIZE, sizeof(HTList*))) == NULL)
170: HT_OUTOFMEM("HTAnchor_findAddress");
1.33 frystyk 171: }
1.16 frystyk 172: if (!adult_table[hash]) adult_table[hash] = HTList_new();
173: adults = adult_table[hash];
174:
175: /* Search list for anchor */
176: grownups = adults;
177: while ((foundAnchor = (HTParentAnchor *) HTList_nextObject(grownups))){
1.33 frystyk 178: if (!strcmp(foundAnchor->address, newaddr)) {
1.16 frystyk 179: if (ANCH_TRACE)
1.44 eric 180: HTTrace("Find Parent. %p with address `%s' already exists.\n",
1.16 frystyk 181: (void*) foundAnchor, newaddr);
1.43 frystyk 182: HT_FREE(newaddr); /* We already have it */
1.16 frystyk 183: return (HTAnchor *) foundAnchor;
184: }
185: }
186:
187: /* Node not found : create new anchor. */
188: foundAnchor = HTParentAnchor_new();
189: foundAnchor->address = newaddr; /* Remember our copy */
190: HTList_addObject (adults, foundAnchor);
1.44 eric 191: if (ANCH_TRACE) HTTrace("Find Parent. %p with hash %d and address `%s' created\n", (void*)foundAnchor, hash, newaddr);
1.1 timbl 192: return (HTAnchor *) foundAnchor;
193: }
194: }
195:
1.17 frystyk 196: /* Create or find a child anchor with a possible link
197: ** --------------------------------------------------
198: **
199: ** Create new anchor with a given parent and possibly
200: ** a name, and possibly a link to a _relatively_ named anchor.
1.34 frystyk 201: ** All parameters EXCEPT parent can be NULL
1.17 frystyk 202: */
1.34 frystyk 203: PUBLIC HTChildAnchor * HTAnchor_findChildAndLink (HTParentAnchor * parent,
1.46 frystyk 204: const char * tag,
205: const char * href,
1.41 frystyk 206: HTLinkType ltype)
1.17 frystyk 207: {
1.34 frystyk 208: HTChildAnchor * child = HTAnchor_findChild(parent, tag);
1.54 frystyk 209: if (child && href && *href) {
1.53 frystyk 210: char * relative_to = HTAnchor_expandedAddress((HTAnchor *) parent);
1.34 frystyk 211: char * parsed_address = HTParse(href, relative_to, PARSE_ALL);
212: HTAnchor * dest = HTAnchor_findAddress(parsed_address);
1.52 frystyk 213: HTLink_add((HTAnchor *) child, dest, ltype, METHOD_INVALID);
1.43 frystyk 214: HT_FREE(parsed_address);
215: HT_FREE(relative_to);
1.34 frystyk 216: }
217: return child;
1.17 frystyk 218: }
219:
1.52 frystyk 220: /* ------------------------------------------------------------------------- */
221: /* Link Methods */
222: /* ------------------------------------------------------------------------- */
1.28 frystyk 223:
1.41 frystyk 224: /*
225: ** Upgrade the link to the main destination and and downgrade the
226: ** current main link to the list
227: */
228: PUBLIC HTLink * HTAnchor_mainLink (HTAnchor * me)
229: {
230: return me ? &(me->mainLink) : NULL;
231: }
1.28 frystyk 232:
1.41 frystyk 233: PUBLIC BOOL HTAnchor_setMainLink (HTAnchor * me, HTLink * movingLink)
1.28 frystyk 234: {
1.41 frystyk 235: if (!(me && me->links && movingLink &&
236: HTList_removeObject(me->links, movingLink)))
237: return NO;
238: else {
239: /* First push current main link onto top of links list */
1.52 frystyk 240: HTLink * newLink = HTLink_new();
1.42 frystyk 241: memcpy ((void *) newLink, & me->mainLink, sizeof (HTLink));
1.41 frystyk 242: HTList_addObject (me->links, newLink);
243:
1.52 frystyk 244: /* Now make movingLink the new main link, and delete it */
1.42 frystyk 245: memcpy ((void *) &me->mainLink, movingLink, sizeof (HTLink));
1.52 frystyk 246: HTLink_delete(movingLink);
1.28 frystyk 247: return YES;
248: }
249: }
250:
251: /*
1.41 frystyk 252: ** Handling sub links
1.24 frystyk 253: */
1.41 frystyk 254: PUBLIC HTList * HTAnchor_subLinks (HTAnchor * anchor)
1.24 frystyk 255: {
1.41 frystyk 256: return anchor ? anchor->links : NULL;
1.24 frystyk 257: }
258:
1.41 frystyk 259: PUBLIC BOOL HTAnchor_setSubLinks (HTAnchor * anchor, HTList * list)
260: {
261: if (anchor) {
262: anchor->links = list;
263: return YES;
264: }
265: return NO;
266: }
1.24 frystyk 267:
268: /*
1.41 frystyk 269: ** Returns the main destination of this anchor
270: */
271: PUBLIC HTAnchor * HTAnchor_followMainLink (HTAnchor * me)
272: {
1.52 frystyk 273: return me ? HTLink_destination(&me->mainLink) : NULL;
1.71 frystyk 274: }
275:
276: /*
277: ** Returns a link with a given link type or NULL if nothing found
278: */
279: PUBLIC HTLink * HTAnchor_findLinkType (HTAnchor * me, HTLinkType type)
280: {
281: if (me) {
282: HTLink * link = HTAnchor_mainLink(me);
283: HTList * sublinks = HTAnchor_subLinks(me);
284: if (link && HTLink_type(link) == type)
285: return link;
286: else if (sublinks) {
287: while ((link = (HTLink *) HTList_nextObject (sublinks)))
288: if (HTLink_type(link) == type) return link;
289: }
290: }
291: return NULL;
1.17 frystyk 292: }
293:
294: /* ------------------------------------------------------------------------- */
295: /* Deletion Methods */
296: /* ------------------------------------------------------------------------- */
1.1 timbl 297:
298: /* Delete an anchor and possibly related things (auto garbage collection)
299: ** --------------------------------------------
300: **
301: ** The anchor is only deleted if the corresponding document is not loaded.
1.10 frystyk 302: ** All outgoing links from parent and children are deleted, and this
303: ** anchor is removed from the sources list of all its targets.
1.1 timbl 304: ** We also try to delete the targets whose documents are not loaded.
305: ** If this anchor's source list is empty, we delete it and its children.
306: */
307:
1.41 frystyk 308: /* Deletes all the memory allocated in a parent anchor and returns any
309: ** hyperdoc object hanging of this anchor
1.19 frystyk 310: */
1.41 frystyk 311: PRIVATE void * delete_parent (HTParentAnchor * me)
1.19 frystyk 312: {
1.41 frystyk 313: void * doc = me->document;
1.19 frystyk 314:
315: /* Remove link and address information */
1.26 frystyk 316: if (me->links) {
317: HTList *cur = me->links;
318: HTLink *pres;
319: while ((pres = (HTLink *) HTList_nextObject(cur)))
1.52 frystyk 320: HTLink_delete(pres);
1.26 frystyk 321: HTList_delete(me->links);
322: }
1.54 frystyk 323:
324: /* Remove children */
325: if (me->children) {
326: int cnt = 0;
327: for (; cnt<CHILD_HASH_SIZE; cnt++) {
328: if (me->children[cnt]) HTList_delete(me->children[cnt]);
329: }
330: HT_FREE(me->children);
331: }
332:
1.19 frystyk 333: HTList_delete (me->sources);
1.52 frystyk 334: HTList_delete (me->variants);
1.43 frystyk 335: HT_FREE(me->physical);
336: HT_FREE(me->address);
1.19 frystyk 337:
338: /* Then remove entity header information (metainformation) */
1.59 frystyk 339: HTAnchor_clearHeader(me);
1.57 frystyk 340:
1.43 frystyk 341: HT_FREE(me);
1.19 frystyk 342: return doc;
343: }
344:
345:
1.41 frystyk 346: /* Delete a parent anchor and all its children. If a hyperdoc object
347: ** is found hanging off the parent anchor then this is returned
1.19 frystyk 348: */
1.41 frystyk 349: PRIVATE void * delete_family (HTAnchor * me)
1.19 frystyk 350: {
1.64 frystyk 351: HTParentAnchor * parent = NULL;
1.19 frystyk 352: if (!me) {
1.64 frystyk 353: if (ANCH_TRACE) HTTrace("AnchorDelete No anchor found\n");
1.19 frystyk 354: return NULL;
355: }
1.64 frystyk 356: parent = me->parent;
357: if (ANCH_TRACE)
358: HTTrace("AnchorDelete Remove parent %p and children\n", parent);
1.19 frystyk 359:
360: /* Delete children */
361: if (parent->children) {
1.54 frystyk 362: int cnt = 0;
363: for (; cnt<CHILD_HASH_SIZE; cnt++) {
364: HTList * kids = parent->children[cnt];
365: if (kids) {
366: HTChildAnchor * child;
367: while ((child=(HTChildAnchor*)HTList_removeLastObject(kids))) {
368: HT_FREE(child->tag);
369: if (child->links) {
370: HTList * cur = child->links;
371: HTLink * pres;
372: while ((pres = (HTLink *) HTList_nextObject(cur)))
373: HTLink_delete(pres);
374: HTList_delete(child->links);
375: }
376: HT_FREE(child);
377: }
378: HTList_delete(kids);
379: parent->children[cnt] = NULL;
1.26 frystyk 380: }
1.19 frystyk 381: }
382: }
383: return delete_parent(parent);
384: }
385:
386:
387: /* DELETE ALL ANCHORS
388: ** ------------------
389: ** Deletes all anchors and return a list of all the HyperDocs found.
390: ** It is for the application to delete any HyperDocs.
1.39 frystyk 391: ** If NULL then no hyperdocs are returned
1.19 frystyk 392: ** Return YES if OK, else NO
393: */
1.35 frystyk 394: PUBLIC BOOL HTAnchor_deleteAll (HTList * documents)
1.19 frystyk 395: {
396: int cnt;
397: HTList *cur;
1.39 frystyk 398: if (!adult_table)
1.19 frystyk 399: return NO;
400: for (cnt=0; cnt<HASH_SIZE; cnt++) {
401: if ((cur = adult_table[cnt])) {
402: HTParentAnchor *pres;
403: while ((pres = (HTParentAnchor *) HTList_nextObject(cur)) != NULL){
1.41 frystyk 404: void * doc = delete_family((HTAnchor *) pres);
405: if (doc && documents) HTList_addObject(documents, doc);
1.19 frystyk 406: }
407: }
408: HTList_delete(adult_table[cnt]);
409: }
1.43 frystyk 410: HT_FREE(adult_table);
1.19 frystyk 411: return YES;
412: }
413:
414:
1.54 frystyk 415: PRIVATE void delete_links (HTAnchor * me)
1.1 timbl 416: {
1.3 timbl 417: if (! me)
1.1 timbl 418: return;
419:
420: /* Recursively try to delete target anchors */
1.3 timbl 421: if (me->mainLink.dest) {
422: HTParentAnchor *parent = me->mainLink.dest->parent;
423: HTList_removeObject (parent->sources, me);
1.1 timbl 424: if (! parent->document) /* Test here to avoid calling overhead */
425: HTAnchor_delete (parent);
426: }
1.3 timbl 427: if (me->links) { /* Extra destinations */
1.1 timbl 428: HTLink *target;
1.12 frystyk 429: while ((target = (HTLink *) HTList_removeLastObject (me->links))) {
1.1 timbl 430: HTParentAnchor *parent = target->dest->parent;
1.3 timbl 431: HTList_removeObject (parent->sources, me);
1.1 timbl 432: if (! parent->document) /* Test here to avoid calling overhead */
433: HTAnchor_delete (parent);
434: }
435: }
436: }
437:
1.35 frystyk 438: PUBLIC BOOL HTAnchor_delete (HTParentAnchor * me)
1.1 timbl 439: {
1.54 frystyk 440: /* Don't delete if document is loaded */
441: if (!me || me->document) {
442: if (ANCH_TRACE) HTTrace("Anchor...... Not deleted\n");
443: return NO;
444: }
445:
446: /* Recursively try to delete target anchors */
447: delete_links ((HTAnchor *) me);
1.1 timbl 448:
1.54 frystyk 449: if (!HTList_isEmpty(me->sources)) { /* There are still incoming links */
450:
451: /*
452: ** Delete all outgoing links from children, if any
453: */
454: if (me->children) {
455: int cnt = 0;
456: for (; cnt<CHILD_HASH_SIZE; cnt++) {
457: HTList * kids = me->children[cnt];
458: if (kids) {
459: HTChildAnchor * child;
460: while ((child = (HTChildAnchor *) HTList_nextObject(kids)))
461: delete_links((HTAnchor *) child);
462: return NO; /* Parent not deleted */
463: }
464: }
465: }
1.1 timbl 466:
1.54 frystyk 467: /*
468: ** No more incoming links : kill everything
469: ** First, recursively delete children
470: */
471: if (me->children) {
472: int cnt = 0;
473: for (; cnt<CHILD_HASH_SIZE; cnt++) {
474: HTList * kids = me->children[cnt];
475: if (kids) {
476: HTChildAnchor * child;
477: while ((child=(HTChildAnchor *) HTList_removeLastObject(kids)))
478: delete_links((HTAnchor *) child);
479: HT_FREE(child->tag);
480: HT_FREE(child);
481: }
482: }
483: }
484: }
1.1 timbl 485:
1.54 frystyk 486: /* Now kill myself */
487: delete_parent(me);
488: return YES; /* Parent deleted */
489: #if 0
1.3 timbl 490: if (! HTList_isEmpty (me->sources)) { /* There are still incoming links */
1.1 timbl 491: /* Delete all outgoing links from children, if any */
1.3 timbl 492: HTList *kids = me->children;
1.12 frystyk 493: while ((child = (HTChildAnchor *) HTList_nextObject (kids)))
1.54 frystyk 494: delete_links ((HTAnchor *) child);
1.1 timbl 495: return NO; /* Parent not deleted */
496: }
497:
498: /* No more incoming links : kill everything */
499: /* First, recursively delete children */
1.12 frystyk 500: while ((child = (HTChildAnchor *) HTList_removeLastObject (me->children))) {
1.54 frystyk 501: delete_links ((HTAnchor *) child);
1.43 frystyk 502: HT_FREE(child->tag);
503: HT_FREE(child);
1.1 timbl 504: }
1.54 frystyk 505: #endif
1.69 frystyk 506: }
507:
508: /* FLATTEN ALL ANCHORS
509: ** -------------------
510: ** Flattens the anchor web structure into an array.
511: ** This is useful for calculating statistics, sorting
512: ** the parent anchors etc.
513: **
514: ** The caller can indicate the size of the array (total
515: ** number of anchors if known - otherwise 0).
516: **
517: ** Return an array that must be freed by the caller or
518: ** NULL if no anchors.
519: */
520: PUBLIC HTArray * HTAnchor_getArray (int growby)
521: {
522: int cnt;
523: HTArray * array = NULL;
524: HTList * cur = NULL;
525: if (!adult_table) return NULL;
526:
527: /* Allocate an array for the anchors */
528: if (!growby) growby = HASH_SIZE;
529: array = HTArray_new(growby);
530:
531: /* Traverse anchor structure */
532: for (cnt=0; cnt<HASH_SIZE; cnt++) {
533: if ((cur = adult_table[cnt])) {
534: HTParentAnchor * pres = NULL;
535: while ((pres = (HTParentAnchor *) HTList_nextObject(cur)) != NULL) {
536: if (HTArray_addObject(array, pres) == NO) {
537: if (ANCH_TRACE)
538: HTTrace("Anchor...... Can't add object %p to array %p\n",
539: pres, array);
540: break;
541: }
542: }
543: }
544: }
545: return array;
1.1 timbl 546: }
547:
1.17 frystyk 548: /* ------------------------------------------------------------------------- */
549: /* Data Access Methods */
550: /* ------------------------------------------------------------------------- */
1.1 timbl 551:
1.35 frystyk 552: PUBLIC HTParentAnchor * HTAnchor_parent (HTAnchor * me)
1.1 timbl 553: {
1.17 frystyk 554: return me ? me->parent : NULL;
1.1 timbl 555: }
556:
1.41 frystyk 557: PUBLIC void HTAnchor_setDocument (HTParentAnchor * me, void * doc)
1.1 timbl 558: {
1.41 frystyk 559: if (me) me->document = doc;
1.1 timbl 560: }
561:
1.41 frystyk 562: PUBLIC void * HTAnchor_document (HTParentAnchor * me)
1.1 timbl 563: {
1.17 frystyk 564: return me ? me->document : NULL;
1.1 timbl 565: }
566:
1.53 frystyk 567: PUBLIC char * HTAnchor_address (HTAnchor * me)
568: {
569: char *addr = NULL;
570: if (me) {
571: if (((HTParentAnchor *) me == me->parent) ||
572: !((HTChildAnchor *) me)->tag) { /* it's an adult or no tag */
573: StrAllocCopy (addr, me->parent->address);
574: }
575: else { /* it's a named child */
576: if ((addr = (char *) HT_MALLOC(2 + strlen (me->parent->address) + \
577: strlen (((HTChildAnchor *) me)->tag))) == NULL)
578: HT_OUTOFMEM("HTAnchor_address");
579: sprintf (addr, "%s#%s", me->parent->address,
580: ((HTChildAnchor *) me)->tag);
581: }
582: }
583: return addr;
584: }
585:
1.51 frystyk 586: /*
1.53 frystyk 587: ** We resolve the child address with respect to either a base URL,
588: ** a content-location, or to the request-URI
1.51 frystyk 589: */
1.53 frystyk 590: PUBLIC char * HTAnchor_expandedAddress (HTAnchor * me)
1.1 timbl 591: {
1.17 frystyk 592: char *addr = NULL;
593: if (me) {
1.53 frystyk 594: HTParentAnchor * parent = me->parent;
1.63 frystyk 595: char * base = HTAnchor_base(parent);
1.17 frystyk 596: if (((HTParentAnchor *) me == me->parent) ||
597: !((HTChildAnchor *) me)->tag) { /* it's an adult or no tag */
1.52 frystyk 598: StrAllocCopy(addr, base);
1.51 frystyk 599: } else { /* it's a named child */
1.52 frystyk 600: if ((addr = (char *) HT_MALLOC(2 + strlen(base) + strlen(((HTChildAnchor *) me)->tag))) == NULL)
1.43 frystyk 601: HT_OUTOFMEM("HTAnchor_address");
1.52 frystyk 602: sprintf (addr, "%s#%s", base, ((HTChildAnchor *) me)->tag);
1.17 frystyk 603: }
1.1 timbl 604: }
1.17 frystyk 605: return addr;
1.1 timbl 606: }
607:
1.52 frystyk 608: /* Physical Address
609: ** ----------------
610: */
611: PUBLIC char * HTAnchor_physical (HTParentAnchor * me)
612: {
1.53 frystyk 613: return me ? me->physical ? me->physical : me->address : NULL;
1.52 frystyk 614: }
615:
1.53 frystyk 616: PUBLIC void HTAnchor_setPhysical (HTParentAnchor * me, char * physical)
1.52 frystyk 617: {
618: if (!me || !physical) {
619: if (ANCH_TRACE)
620: HTTrace("HTAnchor.... setPhysical, called with null argument\n");
621: return;
622: }
623: StrAllocCopy(me->physical, physical);
624: }
625:
1.53 frystyk 626: PUBLIC void HTAnchor_clearPhysical(HTParentAnchor * me)
627: {
628: if (me) HT_FREE(me->physical);
629: }
630:
631: /*
632: ** Children information
633: */
1.35 frystyk 634: PUBLIC BOOL HTAnchor_hasChildren (HTParentAnchor * me)
1.17 frystyk 635: {
1.54 frystyk 636: return (me && me->children);
1.74 frystyk 637: }
638:
639: /*
640: ** Fix up a simple routine to see if this anchor is a (ChildAnchor *)
641: ** Seem to be doing it all over the place, so simplify!
642: */
643: PUBLIC BOOL HTAnchor_isChild (HTAnchor * me)
644: {
645: return (me && (HTParentAnchor *) me != me->parent);
646: }
647:
648: PUBLIC char * HTAnchor_view (HTAnchor * me)
649: {
650: char * view = NULL;
651: if (me && (HTParentAnchor *) me != me->parent && ((HTChildAnchor *) me)->tag)
652: StrAllocCopy(view, ((HTChildAnchor *) me)->tag);
653: return view;
1.17 frystyk 654: }
1.1 timbl 655:
1.63 frystyk 656: /* ------------------------------------------------------------------------- */
657: /* Entity Header Information */
658: /* ------------------------------------------------------------------------- */
659:
1.59 frystyk 660: /*
1.63 frystyk 661: ** Take the relevant infomration from the response object and cache it
662: ** in the anchor object. We inherit the information that is already
663: ** parsed in the response along with the unparsed headers.
1.52 frystyk 664: */
1.63 frystyk 665: PUBLIC BOOL HTAnchor_update (HTParentAnchor * me, HTResponse * response)
1.52 frystyk 666: {
1.63 frystyk 667: if (me && response) {
1.59 frystyk 668:
1.79 frystyk 669: if (HTResponse_isCachable(response) == HT_CACHE_ETAG) {
670: char * etag = HTResponse_etag(response);
671: if (ANCH_TRACE) HTTrace("HTAnchor.... Updating etag for %p\n", me);
672: if (etag) {
673: HTAnchor_setEtag(me, etag);
674: return YES;
675: }
676: } else if (HTResponse_isCachable(response) == HT_CACHE_ALL) {
1.81 ! frystyk 677: char * etag = HTResponse_etag(response);
1.79 frystyk 678: if (ANCH_TRACE)
679: HTTrace("HTAnchor.... Updating metainformation for %p\n", me);
680:
681: /*
682: ** The content length and type is already parsed at this point
683: ** in time. We also check for format parameters like charset etc.
684: ** and copy the contents in the anchor object
685: */
686: me->content_length = HTResponse_length(response);
687: me->content_type = HTResponse_format(response);
688: me->type_parameters = HTResponse_formatParam(response);
1.80 frystyk 689: me->content_encoding = HTResponse_encoding(response);
1.63 frystyk 690:
1.81 ! frystyk 691: /* Don't forget the etag as well */
! 692: if (etag) HTAnchor_setEtag(me, etag);
! 693:
1.79 frystyk 694: /*
695: ** Inherit all the unparsed headers - we may need them later!
696: */
697: me->headers = HTResponse_handOverHeader(response);
698:
699: /*
700: ** Notifify the response object not to delete the lists that we
701: ** have inherited in the anchor object
702: */
703: HTResponse_isCached(response, YES);
1.59 frystyk 704:
1.79 frystyk 705: return YES;
706: }
1.59 frystyk 707: }
708: return NO;
1.52 frystyk 709: }
710:
711: /*
712: ** Variants. If this anchor has any variants then keep them in a list
713: ** so that we can find them later. The list is simply a list of
714: ** parent anchors.
715: */
716: PUBLIC HTList * HTAnchor_variants (HTParentAnchor * me)
1.17 frystyk 717: {
1.52 frystyk 718: return me ? me->variants : NULL;
1.17 frystyk 719: }
1.1 timbl 720:
1.52 frystyk 721: PUBLIC BOOL HTAnchor_addVariant (HTParentAnchor * me,
722: HTParentAnchor * variant)
1.1 timbl 723: {
1.52 frystyk 724: if (me && variant) {
725: if (!me->variants) me->variants = HTList_new();
726: return HTList_addObject(me->variants, variant);
727: }
728: return NO;
1.17 frystyk 729: }
730:
1.52 frystyk 731: PUBLIC BOOL HTAnchor_deleteVariant (HTParentAnchor * me,
732: HTParentAnchor * variant)
1.17 frystyk 733: {
1.52 frystyk 734: return (me && variant) ? HTList_removeObject(me->variants, variant) : NO;
1.9 frystyk 735: }
1.1 timbl 736:
1.52 frystyk 737: /*
738: ** Is this resource an index?
1.17 frystyk 739: */
1.52 frystyk 740: PUBLIC void HTAnchor_clearIndex (HTParentAnchor * me)
741: {
742: if (me) me->isIndex = NO;
743: }
1.17 frystyk 744:
1.52 frystyk 745: PUBLIC void HTAnchor_setIndex (HTParentAnchor * me)
1.1 timbl 746: {
1.52 frystyk 747: if (me) me->isIndex = YES;
1.1 timbl 748: }
749:
1.52 frystyk 750: PUBLIC BOOL HTAnchor_isIndex (HTParentAnchor * me)
1.1 timbl 751: {
1.52 frystyk 752: return me ? me->isIndex : NO;
1.27 frystyk 753: }
754:
1.52 frystyk 755: /* Content Base
1.51 frystyk 756: ** ------------
757: */
758: PUBLIC char * HTAnchor_base (HTParentAnchor * me)
759: {
1.63 frystyk 760: if (me) {
761: if (me->content_base) return me->content_base;
762: if (me->headers) {
763: char * base = HTAssocList_findObject(me->headers, "content-base");
764: /*
765: ** If no base is found then take the content-location if this
766: ** is present and is absolute, else use the Request-URI.
767: */
1.66 frystyk 768: if (base) StrAllocCopy(me->content_base, HTStrip(base));
1.63 frystyk 769: }
1.66 frystyk 770:
771: /*
772: ** Try the content location if any
773: */
774: {
775: char * location = HTAnchor_location(me);
776: StrAllocCopy(me->content_base,
777: (location && HTURL_isAbsolute(location)) ?
778: location : me->address);
779: }
780: return me->content_base;
1.63 frystyk 781: }
782: return NULL;
1.51 frystyk 783: }
784:
785: PUBLIC BOOL HTAnchor_setBase (HTParentAnchor * me, char * base)
786: {
1.63 frystyk 787: if (me && base) {
788: StrAllocCopy(me->content_base, base);
789: return YES;
1.51 frystyk 790: }
1.63 frystyk 791: return NO;
1.51 frystyk 792: }
793:
1.52 frystyk 794: /* Content Location
795: ** ----------------
1.27 frystyk 796: */
1.52 frystyk 797: PUBLIC char * HTAnchor_location (HTParentAnchor * me)
1.27 frystyk 798: {
1.63 frystyk 799: if (me) {
800: if (me->content_location)
801: return *me->content_location ? me->content_location : NULL;
802: if (me->headers) {
803: char * location = HTAssocList_findObject(me->headers, "content-location");
804: StrAllocCopy(me->content_location, location ? HTStrip(location) : "");
805: return me->content_location;
806: }
807: }
808: return NULL;
1.27 frystyk 809: }
810:
1.53 frystyk 811: /*
812: ** Expand the location relative to the base URL if any, otherwise the
813: ** anchor address it self
814: */
1.52 frystyk 815: PUBLIC BOOL HTAnchor_setLocation (HTParentAnchor * me, char * location)
1.27 frystyk 816: {
1.53 frystyk 817: if (me && location) {
1.63 frystyk 818: char * base = HTAnchor_base(me);
819: if (!base) base = me->address;
1.53 frystyk 820: me->content_location = HTParse(location, base, PARSE_ALL);
821: return YES;
1.52 frystyk 822: }
1.53 frystyk 823: return NO;
1.1 timbl 824: }
825:
1.72 frystyk 826: /* Meta tags
827: ** ---------
828: */
829: PUBLIC HTAssocList * HTAnchor_meta (HTParentAnchor * me)
830: {
831: return me ? me->meta_tags : NULL;
832: }
833:
834: PUBLIC BOOL HTAnchor_addMeta (HTParentAnchor * me,
835: const char * name, const char * value)
836: {
837: if (me) {
838: if (!me->meta_tags) me->meta_tags = HTAssocList_new();
839: return HTAssocList_replaceObject(me->meta_tags, name, value);
840: }
841: return NO;
842: }
843:
844: /*
845: ** robots meta tag
846: */
847: PUBLIC char * HTAnchor_robots (HTParentAnchor * me)
848: {
849: if (me && me->meta_tags) {
850: char * robots = HTAssocList_findObject(me->meta_tags, "robots");
851: return robots;
852: }
853: return NULL;
854: }
855:
1.52 frystyk 856: /* Content-Type
857: ** ------------
1.17 frystyk 858: */
1.35 frystyk 859: PUBLIC HTFormat HTAnchor_format (HTParentAnchor * me)
1.17 frystyk 860: {
861: return me ? me->content_type : NULL;
862: }
1.1 timbl 863:
1.35 frystyk 864: PUBLIC void HTAnchor_setFormat (HTParentAnchor * me, HTFormat form)
1.1 timbl 865: {
1.17 frystyk 866: if (me) me->content_type = form;
1.1 timbl 867: }
868:
1.52 frystyk 869: PUBLIC HTAssocList * HTAnchor_formatParam (HTParentAnchor * me)
870: {
871: return me ? me->type_parameters : NULL;
872: }
873:
874: PUBLIC BOOL HTAnchor_addFormatParam (HTParentAnchor * me,
875: const char * name, const char * value)
876: {
877: if (me) {
878: if (!me->type_parameters) me->type_parameters = HTAssocList_new();
879: return HTAssocList_replaceObject(me->type_parameters, name, value);
880: }
881: return NO;
882: }
883:
1.17 frystyk 884: /*
885: ** Charset parameter to Content-Type
1.1 timbl 886: */
1.35 frystyk 887: PUBLIC HTCharset HTAnchor_charset (HTParentAnchor * me)
1.1 timbl 888: {
1.52 frystyk 889: if (me && me->type_parameters) {
890: char * charset = HTAssocList_findObject(me->type_parameters,"charset");
891: return HTAtom_for(charset);
892: }
893: return NULL;
1.1 timbl 894: }
895:
1.52 frystyk 896: PUBLIC BOOL HTAnchor_setCharset (HTParentAnchor * me, HTCharset charset)
1.1 timbl 897: {
1.52 frystyk 898: return HTAnchor_addFormatParam(me, "charset", HTAtom_name(charset));
1.1 timbl 899: }
900:
1.17 frystyk 901: /*
1.20 frystyk 902: ** Level parameter to Content-Type
903: */
1.35 frystyk 904: PUBLIC HTLevel HTAnchor_level (HTParentAnchor * me)
1.20 frystyk 905: {
1.52 frystyk 906: if (me && me->type_parameters) {
907: char * level = HTAssocList_findObject(me->type_parameters, "level");
908: return HTAtom_for(level);
909: }
910: return NULL;
1.20 frystyk 911: }
912:
1.52 frystyk 913: PUBLIC BOOL HTAnchor_setLevel (HTParentAnchor * me, HTLevel level)
1.20 frystyk 914: {
1.52 frystyk 915: return HTAnchor_addFormatParam(me, "level", HTAtom_name(level));
1.20 frystyk 916: }
917:
918: /*
1.17 frystyk 919: ** Content Encoding
920: */
1.47 frystyk 921: PUBLIC HTList * HTAnchor_encoding (HTParentAnchor * me)
1.1 timbl 922: {
1.17 frystyk 923: return me ? me->content_encoding : NULL;
1.1 timbl 924: }
925:
1.63 frystyk 926: PUBLIC BOOL HTAnchor_addEncoding (HTParentAnchor * me, HTEncoding encoding)
1.17 frystyk 927: {
1.47 frystyk 928: if (me && encoding) {
929: if (!me->content_encoding) me->content_encoding = HTList_new();
930: return HTList_addObject(me->content_encoding, encoding);
931: }
932: return NO;
1.17 frystyk 933: }
934:
1.77 frystyk 935: PUBLIC BOOL HTAnchor_deleteEncoding (HTParentAnchor * me, HTEncoding encoding)
1.67 frystyk 936: {
937: return (me && me->content_encoding && encoding) ?
938: HTList_removeObject(me->content_encoding, encoding) : NO;
939: }
940:
1.77 frystyk 941: PUBLIC BOOL HTAnchor_deleteEncodingAll (HTParentAnchor * me)
942: {
943: if (me && me->content_encoding) {
944: HTList_delete(me->content_encoding);
945: me->content_encoding = NULL;
946: return YES;
947: }
948: return NO;
949: }
950:
1.17 frystyk 951: /*
1.21 frystyk 952: ** Content Language
953: */
1.47 frystyk 954: PUBLIC HTList * HTAnchor_language (HTParentAnchor * me)
1.21 frystyk 955: {
1.63 frystyk 956: if (me) {
957: if (me->content_language == NULL && me->headers) {
958: char * value = HTAssocList_findObject(me->headers, "content-language");
959: char * field;
960: if (!me->content_language) me->content_language = HTList_new();
961: while ((field = HTNextField(&value)) != NULL) {
962: char * lc = field;
963: while ((*lc = TOLOWER(*lc))) lc++;
964: HTList_addObject(me->content_language, HTAtom_for(field));
965: }
966: }
967: return me->content_language;
968: }
969: return NULL;
1.21 frystyk 970: }
971:
1.63 frystyk 972: PUBLIC BOOL HTAnchor_addLanguage (HTParentAnchor * me, HTLanguage language)
1.21 frystyk 973: {
1.47 frystyk 974: if (me && language) {
975: if (!me->content_language) me->content_language = HTList_new();
976: return HTList_addObject(me->content_language, language);
1.77 frystyk 977: }
978: return NO;
979: }
980:
981: PUBLIC BOOL HTAnchor_deleteLanguageAll (HTParentAnchor * me)
982: {
983: if (me && me->content_language) {
984: HTList_delete(me->content_language);
985: me->content_language = NULL;
986: return YES;
1.47 frystyk 987: }
988: return NO;
1.21 frystyk 989: }
990:
991: /*
1.17 frystyk 992: ** Content Length
993: */
1.35 frystyk 994: PUBLIC long int HTAnchor_length (HTParentAnchor * me)
1.1 timbl 995: {
1.17 frystyk 996: return me ? me->content_length : -1;
1.1 timbl 997: }
998:
1.35 frystyk 999: PUBLIC void HTAnchor_setLength (HTParentAnchor * me, long int length)
1.17 frystyk 1000: {
1001: if (me) me->content_length = length;
1002: }
1.1 timbl 1003:
1.49 frystyk 1004: PUBLIC void HTAnchor_addLength (HTParentAnchor * me, long int deltalength)
1005: {
1006: if (me) {
1007: if (me->content_length < 0)
1008: me->content_length = deltalength;
1009: else
1010: me->content_length += deltalength;
1011: }
1012: }
1013:
1.17 frystyk 1014: /*
1.63 frystyk 1015: ** Content Transfer Encoding
1016: */
1.73 frystyk 1017: PUBLIC HTEncoding HTAnchor_contentTransferEncoding (HTParentAnchor * me)
1.63 frystyk 1018: {
1.73 frystyk 1019: return me ? me->cte : NULL;
1.63 frystyk 1020: }
1021:
1.73 frystyk 1022: PUBLIC void HTAnchor_setContentTransferEncoding (HTParentAnchor * me, HTEncoding cte)
1.63 frystyk 1023: {
1.73 frystyk 1024: if (me) me->cte = cte;
1.63 frystyk 1025: }
1026:
1027: /*
1.17 frystyk 1028: ** Allowed methods (Allow)
1.1 timbl 1029: */
1.63 frystyk 1030: PUBLIC HTMethod HTAnchor_allow (HTParentAnchor * me)
1.17 frystyk 1031: {
1.63 frystyk 1032: if (me) {
1033: if (me->allow == 0 && me->headers) {
1034: char * value = HTAssocList_findObject(me->headers, "allow");
1035: char * field;
1036:
1037: /*
1038: ** We treat methods allowed on this object as case insensitive
1039: ** in case we receive the information over the net - that is -
1040: ** in the Allow header.
1041: */
1042: while ((field = HTNextField(&value)) != NULL) {
1043: HTMethod new_method;
1044: if ((new_method = HTMethod_enum(field)) != METHOD_INVALID)
1045: me->allow |= new_method;
1046: }
1047: }
1048: return me->allow;
1049: }
1050: return METHOD_INVALID;
1.17 frystyk 1051: }
1.1 timbl 1052:
1.63 frystyk 1053: PUBLIC void HTAnchor_setAllow (HTParentAnchor * me, HTMethod methodset)
1.1 timbl 1054: {
1.63 frystyk 1055: if (me) me->allow = methodset;
1.1 timbl 1056: }
1057:
1.63 frystyk 1058: PUBLIC void HTAnchor_appendAllow (HTParentAnchor * me, HTMethod methodset)
1.1 timbl 1059: {
1.63 frystyk 1060: if (me) me->allow |= methodset;
1.1 timbl 1061: }
1062:
1.17 frystyk 1063: /*
1064: ** Title
1.2 timbl 1065: */
1.46 frystyk 1066: PUBLIC const char * HTAnchor_title (HTParentAnchor * me)
1.1 timbl 1067: {
1.63 frystyk 1068: if (me) {
1069: if (me->title)
1070: return *me->title ? me->title : NULL;
1071: if (me->headers) {
1072: char * value = HTAssocList_findObject(me->headers, "title");
1073: char * title;
1074: if ((title = HTNextField(&value))) StrAllocCopy(me->title, title);
1075: return me->title;
1076: }
1077: }
1078: return NULL;
1.17 frystyk 1079: }
1.1 timbl 1080:
1.46 frystyk 1081: PUBLIC void HTAnchor_setTitle (HTParentAnchor * me, const char * title)
1.17 frystyk 1082: {
1.76 frystyk 1083: if (me && title) {
1084: char * ptr;
1085: StrAllocCopy(me->title, title);
1086: ptr = me->title;
1087: while (*ptr) {
1088: if (isspace((int) *ptr)) *ptr = ' ';
1089: ptr++;
1090: }
1091: }
1.2 timbl 1092: }
1093:
1.46 frystyk 1094: PUBLIC void HTAnchor_appendTitle (HTParentAnchor * me, const char * title)
1.17 frystyk 1095: {
1096: if (me && title) StrAllocCat(me->title, title);
1097: }
1.2 timbl 1098:
1.17 frystyk 1099: /*
1100: ** Version
1.2 timbl 1101: */
1.41 frystyk 1102: PUBLIC char * HTAnchor_version (HTParentAnchor * me)
1.17 frystyk 1103: {
1.63 frystyk 1104: if (me) {
1105: if (me->version)
1106: return *me->version ? me->version : NULL;
1107: if (me->headers) {
1108: char * value = HTAssocList_findObject(me->headers, "version");
1109: char * version;
1110: if ((version = HTNextField(&value)))
1111: StrAllocCopy(me->version, version);
1112: return me->version;
1113: }
1114: }
1115: return NULL;
1.17 frystyk 1116: }
1.2 timbl 1117:
1.46 frystyk 1118: PUBLIC void HTAnchor_setVersion (HTParentAnchor * me, const char * version)
1.2 timbl 1119: {
1.17 frystyk 1120: if (me && version) StrAllocCopy(me->version, version);
1.2 timbl 1121: }
1122:
1.17 frystyk 1123: /*
1124: ** Derived from
1.2 timbl 1125: */
1.41 frystyk 1126: PUBLIC char * HTAnchor_derived (HTParentAnchor * me)
1.17 frystyk 1127: {
1.63 frystyk 1128: if (me) {
1129: if (me->derived_from)
1130: return *me->derived_from ? me->derived_from : NULL;
1131: if (me->headers) {
1132: char * value = HTAssocList_findObject(me->headers, "derived-from");
1133: char * derived_from;
1134: if ((derived_from = HTNextField(&value)))
1135: StrAllocCopy(me->derived_from, derived_from);
1136: return me->derived_from;
1137: }
1138: }
1139: return NULL;
1.17 frystyk 1140: }
1141:
1.46 frystyk 1142: PUBLIC void HTAnchor_setDerived (HTParentAnchor * me, const char *derived_from)
1.17 frystyk 1143: {
1144: if (me && derived_from) StrAllocCopy(me->derived_from, derived_from);
1145: }
1.2 timbl 1146:
1.17 frystyk 1147: /*
1.52 frystyk 1148: ** Content MD5
1149: */
1150: PUBLIC char * HTAnchor_md5 (HTParentAnchor * me)
1151: {
1.63 frystyk 1152: if (me) {
1153: if (me->content_md5)
1154: return *me->content_md5 ? me->content_md5 : NULL;
1155: if (me->headers) {
1156: char * value = HTAssocList_findObject(me->headers, "content-md5");
1157: char * md5;
1158: if ((md5 = HTNextField(&value))) StrAllocCopy(me->content_md5,md5);
1159: return me->content_md5;
1160: }
1161: }
1162: return NULL;
1.52 frystyk 1163: }
1164:
1.63 frystyk 1165: PUBLIC BOOL HTAnchor_setMd5 (HTParentAnchor * me, const char * hash)
1.52 frystyk 1166: {
1.63 frystyk 1167: if (me && hash) {
1168: StrAllocCopy(me->content_md5, hash);
1169: return YES;
1170: }
1171: return NO;
1.52 frystyk 1172: }
1173:
1174: /*
1.28 frystyk 1175: ** Date
1176: */
1.41 frystyk 1177: PUBLIC time_t HTAnchor_date (HTParentAnchor * me)
1178: {
1.63 frystyk 1179: if (me) {
1180: if (me->date == (time_t) -1 && me->headers) {
1181: char * value = HTAssocList_findObject(me->headers, "date");
1182: if (value) me->date = HTParseTime(value, NULL, YES);
1183: }
1184: return me->date;
1185: }
1186: return (time_t) -1;
1.41 frystyk 1187: }
1188:
1.46 frystyk 1189: PUBLIC void HTAnchor_setDate (HTParentAnchor * me, const time_t date)
1.28 frystyk 1190: {
1.41 frystyk 1191: if (me) me->date = date;
1.28 frystyk 1192: }
1193:
1194: /*
1195: ** Expires
1196: */
1.41 frystyk 1197: PUBLIC time_t HTAnchor_expires (HTParentAnchor * me)
1198: {
1.63 frystyk 1199: if (me) {
1200: if (me->expires == (time_t) -1 && me->headers) {
1201: char * value = HTAssocList_findObject(me->headers, "expires");
1202: if (value) me->expires = HTParseTime(value, NULL, YES);
1203: }
1204: return me->expires;
1205: }
1206: return (time_t) -1;
1.41 frystyk 1207: }
1208:
1.46 frystyk 1209: PUBLIC void HTAnchor_setExpires (HTParentAnchor * me, const time_t expires)
1.28 frystyk 1210: {
1.41 frystyk 1211: if (me) me->expires = expires;
1.28 frystyk 1212: }
1213:
1214: /*
1215: ** Last Modified
1216: */
1.41 frystyk 1217: PUBLIC time_t HTAnchor_lastModified (HTParentAnchor * me)
1218: {
1.63 frystyk 1219: if (me) {
1220: if (me->last_modified == (time_t) -1 && me->headers) {
1221: char * value = HTAssocList_findObject(me->headers,"last-modified");
1222: if (value) me->last_modified = HTParseTime(value, NULL, YES);
1223: }
1224: return me->last_modified;
1225: }
1226: return (time_t) -1;
1.41 frystyk 1227: }
1228:
1.46 frystyk 1229: PUBLIC void HTAnchor_setLastModified (HTParentAnchor * me, const time_t lm)
1.28 frystyk 1230: {
1.41 frystyk 1231: if (me) me->last_modified = lm;
1.28 frystyk 1232: }
1233:
1234: /*
1.59 frystyk 1235: ** Age
1236: */
1237: PUBLIC time_t HTAnchor_age (HTParentAnchor * me)
1238: {
1.63 frystyk 1239: if (me) {
1240: if (me->age == (time_t) -1 && me->headers) {
1241: char * value = HTAssocList_findObject(me->headers, "age");
1242: if (value) me->age = atol(value);
1243: }
1244: return me->age;
1245: }
1246: return (time_t) -1;
1.59 frystyk 1247: }
1248:
1249: PUBLIC void HTAnchor_setAge (HTParentAnchor * me, const time_t age)
1250: {
1251: if (me) me->age = age;
1252: }
1253:
1254: /*
1.52 frystyk 1255: ** Entity Tag
1256: */
1257: PUBLIC char * HTAnchor_etag (HTParentAnchor * me)
1258: {
1.63 frystyk 1259: if (me) {
1260: if (me->etag)
1261: return *me->etag ? me->etag : NULL;
1262: if (me->headers) {
1263: char * value = HTAssocList_findObject(me->headers, "etag");
1264: char * etag;
1265: if ((etag = HTNextField(&value))) StrAllocCopy(me->etag, etag);
1266: return me->etag;
1267: }
1268: }
1269:
1.52 frystyk 1270: return me ? me->etag : NULL;
1271: }
1272:
1273: PUBLIC void HTAnchor_setEtag (HTParentAnchor * me, const char * etag)
1274: {
1.78 frystyk 1275: if (me && etag && me->etag != etag) StrAllocCopy(me->etag, etag);
1.52 frystyk 1276: }
1277:
1278: PUBLIC BOOL HTAnchor_isEtagWeak (HTParentAnchor * me)
1279: {
1280: return (me && me->etag && !strncasecomp(me->etag, "W/", 2));
1281: }
1282:
1283: /*
1.63 frystyk 1284: ** Original headers (if any)
1.17 frystyk 1285: */
1.63 frystyk 1286: PUBLIC HTAssocList * HTAnchor_header (HTParentAnchor * me)
1.2 timbl 1287: {
1.63 frystyk 1288: return me ? me->headers : NULL;
1.2 timbl 1289: }
1290:
1.63 frystyk 1291: PUBLIC BOOL HTAnchor_setHeader (HTParentAnchor * me, HTAssocList * headers)
1.2 timbl 1292: {
1.17 frystyk 1293: if (me) {
1.63 frystyk 1294: me->headers = headers;
1295: return YES;
1.17 frystyk 1296: }
1.63 frystyk 1297: return NO;
1.2 timbl 1298: }
1299:
1.23 frystyk 1300: /*
1.59 frystyk 1301: ** Validate anchor values and finish up parsing
1.2 timbl 1302: */
1.59 frystyk 1303: PUBLIC void HTAnchor_setHeaderParsed (HTParentAnchor * me)
1.2 timbl 1304: {
1.59 frystyk 1305: if (me) {
1306:
1307: /*
1308: ** If the server did not send a date then use the current time
1309: */
1310: if (me->date < 0) me->date = time(NULL);
1311:
1312: /*
1313: ** If we don't get a Last-Modified header then set it to date
1314: */
1.62 frystyk 1315: if (ANCH_TRACE) HTTrace("HTAnchor.... Anchor is parsed\n");
1.59 frystyk 1316: me->header_parsed = YES;
1317: }
1.23 frystyk 1318: }
1319:
1.59 frystyk 1320: PUBLIC BOOL HTAnchor_headerParsed (HTParentAnchor * me)
1.23 frystyk 1321: {
1.59 frystyk 1322: return (me ? me->header_parsed : NO);
1.2 timbl 1323: }
1324:
1.17 frystyk 1325: /* Clear Header Information
1326: ** ------------------------
1327: */
1.35 frystyk 1328: PUBLIC void HTAnchor_clearHeader (HTParentAnchor * me)
1.2 timbl 1329: {
1.63 frystyk 1330: if (ANCH_TRACE) HTTrace("HTAnchor.... Clear all header information\n");
1331: me->allow = METHOD_INVALID;
1.48 frystyk 1332: if (me->content_encoding) {
1333: HTList_delete(me->content_encoding);
1.65 frystyk 1334: me->content_encoding = NULL;
1.48 frystyk 1335: }
1.17 frystyk 1336: if (me->content_language) {
1337: HTList_delete(me->content_language);
1.65 frystyk 1338: me->content_language = NULL;
1.9 frystyk 1339: }
1.51 frystyk 1340: HT_FREE(me->content_base);
1341: HT_FREE(me->content_location);
1.17 frystyk 1342: me->content_length = -1; /* Invalid */
1.57 frystyk 1343:
1.59 frystyk 1344: /* Delete the title */
1345: HT_FREE(me->title);
1346:
1.57 frystyk 1347: /* Clear the content type */
1.17 frystyk 1348: me->content_type = WWW_UNKNOWN;
1.52 frystyk 1349: if (me->type_parameters) {
1350: HTAssocList_delete(me->type_parameters);
1351: me->type_parameters = NULL;
1.72 frystyk 1352: }
1353:
1354: /* Meta tags */
1355: if (me->meta_tags) {
1356: HTAssocList_delete(me->meta_tags);
1357: me->meta_tags = NULL;
1.52 frystyk 1358: }
1.57 frystyk 1359:
1360: /* Dates etc. */
1.28 frystyk 1361: me->date = (time_t) -1;
1362: me->expires = (time_t) -1;
1363: me->last_modified = (time_t) -1;
1.59 frystyk 1364: me->age = (time_t) -1;
1.17 frystyk 1365:
1.43 frystyk 1366: HT_FREE(me->derived_from);
1367: HT_FREE(me->version);
1.58 frystyk 1368: HT_FREE(me->etag);
1.63 frystyk 1369:
1370: /* Delete any original headers */
1371: if (me->headers) HTAssocList_delete(me->headers);
1372: me->headers = NULL;
1.18 frystyk 1373:
1.62 frystyk 1374: /* Anchor is cleared */
1375: me->header_parsed = NO;
1.1 timbl 1376: }
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