/*
** Returns a link with a given link type or NULL if nothing found
*/
PUBLIC HTLink * HTAnchor_findLinkType (HTAnchor * me, HTLinkType type)
{
if (me) {
HTLink * link = HTAnchor_mainLink(me);
HTList * sublinks = HTAnchor_subLinks(me);
if (link && HTLink_type(link) == type)
return link;
else if (sublinks) {
while ((link = (HTLink *) HTList_nextObject (sublinks)))
if (HTLink_type(link) == type) return link;
}
}
return NULL;
}
/* NewsPost_start
** --------------
** NNTP needs two extra headers: "From" and "Newsgroups".
** Take the newsgroups from the Postweb model as destinations for this
** anchor.
** Return YES if OK else NO
*/
PRIVATE BOOL NewsPost_start (HTStream * me, HTRequest * request)
{
char linebuf[128]; /* @@@ */
HTChunk *header = me->buffer;
HTUserProfile * up = HTRequest_userProfile(request);
const char * mailaddress = HTUserProfile_email(up);
if (mailaddress) {
sprintf(linebuf, "From: %s%c%c", mailaddress, CR, LF);
HTChunk_puts(header, linebuf);
}
/*
** Find all the newsgroups we are posting to by looking at all the
** destinations from the source of this request.
** First the main link and then the sub links
*/
HTChunk_puts(header, "Newsgroups :");
if (HTRequest_isDestination(request)) {
HTRequest *src_req = HTRequest_source(request);
HTParentAnchor *src_anchor = HTRequest_anchor(src_req);
HTLink *link = HTAnchor_mainLink((HTAnchor *) src_anchor);
HTAnchor *dest = HTLink_destination(link);
HTMethod method = HTLink_method(link);
if (link && method == METHOD_POST &&
HTLink_result(link) == HT_LINK_NONE) {
char *desturl = HTAnchor_physical((HTParentAnchor *) dest);
char *access = HTParse(desturl, "", PARSE_ACCESS);
if (!strcasecomp(access, "news") || !strcasecomp(access, "nntp")) {
char *newsgroup = HTParse(desturl, "", PARSE_PATH);
HTUnEscape(newsgroup);
HTCleanTelnetString(newsgroup);
HTChunk_puts(header, newsgroup);
HT_FREE(newsgroup);
}
HT_FREE(access);
}
/* DO FOR ALL SUB ANCHOR DESTINATION S AS WELL */
}
HTTRACE(PROT_TRACE, "News Tx..... %s" _ HTChunk_data(header));
return YES;
}
PRIVATE void HTML_start_element (HTStructured * me,
int element_number,
const BOOL * present,
const char ** value)
{
HTChildAnchor * address = NULL;
if (!me->started) {
HTextImp_build(me->text, HTEXT_BEGIN);
me->started = YES;
}
/* Look at what element was started */
switch (element_number) {
case HTML_A:
if (present[HTML_A_HREF] && value[HTML_A_HREF]) {
address = HTAnchor_findChildAndLink(
me->node_anchor, /* parent */
present[HTML_A_NAME] ? value[HTML_A_NAME] : NULL, /* Tag */
value[HTML_A_HREF], /* Addresss */
present[HTML_A_REL] && value[HTML_A_REL] ?
(HTLinkType) HTAtom_caseFor(value[HTML_A_REL]) : NULL);
if (present[HTML_A_TITLE] && value[HTML_A_TITLE]) {
HTLink * link = HTAnchor_mainLink((HTAnchor *) address);
HTParentAnchor * dest = HTAnchor_parent(HTLink_destination(link));
if (!HTAnchor_title(dest)) HTAnchor_setTitle(dest, value[HTML_A_TITLE]);
}
HTextImp_foundLink(me->text, element_number, HTML_A_HREF,
address, present, value);
HTTRACE(SGML_TRACE, "HTML Parser. Anchor `%s\'\n" _ value[HTML_A_HREF]);
}
break;
case HTML_AREA:
if (present[HTML_AREA_HREF] && value[HTML_AREA_HREF]) {
address = HTAnchor_findChildAndLink(me->node_anchor, NULL,
value[HTML_AREA_HREF], NULL);
HTextImp_foundLink(me->text, element_number, HTML_AREA_HREF,
address, present, value);
HTTRACE(SGML_TRACE, "HTML Parser. Image map area `%s\'\n" _ value[HTML_AREA_HREF]);
}
break;
case HTML_BASE:
if (present[HTML_BASE_HREF] && value[HTML_BASE_HREF]) {
HTAnchor_setBase(me->node_anchor, (char *) value[HTML_BASE_HREF]);
HTTRACE(SGML_TRACE, "HTML Parser. New base `%s\'\n" _ value[HTML_BASE_HREF]);
}
break;
case HTML_BODY:
if (present[HTML_BODY_BACKGROUND] && value[HTML_BODY_BACKGROUND]) {
address = HTAnchor_findChildAndLink(me->node_anchor, NULL,
value[HTML_BODY_BACKGROUND], NULL);
HTextImp_foundLink(me->text, element_number, HTML_BODY_BACKGROUND,
address, present, value);
HTTRACE(SGML_TRACE, "HTML Parser. Background `%s\'\n" _ value[HTML_BODY_BACKGROUND]);
}
break;
case HTML_FORM:
if (present[HTML_FORM_ACTION] && value[HTML_FORM_ACTION]) {
address = HTAnchor_findChildAndLink(me->node_anchor, NULL,
value[HTML_FORM_ACTION], NULL);
HTextImp_foundLink(me->text, element_number, HTML_FORM_ACTION,
address, present, value);
}
break;
case HTML_FRAME:
if (present[HTML_FRAME_SRC] && value[HTML_FRAME_SRC]) {
address = HTAnchor_findChildAndLink(me->node_anchor, NULL,
value[HTML_FRAME_SRC], NULL);
HTextImp_foundLink(me->text, element_number, HTML_FRAME_SRC,
address, present, value);
HTTRACE(SGML_TRACE, "HTML Parser. Frame `%s\'\n" _ value[HTML_FRAME_SRC]);
}
break;
case HTML_INPUT:
if (present[HTML_INPUT_SRC] && value[HTML_INPUT_SRC]) {
address = HTAnchor_findChildAndLink(me->node_anchor, NULL,
value[HTML_INPUT_SRC], NULL);
HTextImp_foundLink(me->text, element_number, HTML_INPUT_SRC,
address, present, value);
}
break;
case HTML_IMG:
if (present[HTML_IMG_SRC] && value[HTML_IMG_SRC]) {
address = HTAnchor_findChildAndLink(me->node_anchor, NULL,
value[HTML_IMG_SRC], NULL);
HTextImp_foundLink(me->text, element_number, HTML_IMG_SRC,
address, present, value);
}
break;
case HTML_ISINDEX:
HTAnchor_setIndex(me->node_anchor);
break;
case HTML_LINK:
if (present[HTML_LINK_HREF] && value[HTML_LINK_HREF]) {
HTParentAnchor * dest = NULL;
address = HTAnchor_findChildAndLink(
me->node_anchor, /* parent */
present[HTML_A_NAME] ? value[HTML_A_NAME] : NULL, /* Tag */
present[HTML_A_HREF] ? value[HTML_A_HREF] : NULL, /* Addresss */
NULL); /* Rels */
dest = HTAnchor_parent(HTAnchor_followMainLink((HTAnchor *) address));
/* If forward reference */
if ((present[HTML_LINK_REL] && value[HTML_LINK_REL])) {
char * strval = NULL;
char * ptr = NULL;
char * relation = NULL;
StrAllocCopy(strval, value[HTML_LINK_REL]);
ptr = strval;
while ((relation = HTNextLWSToken(&ptr)) != NULL) {
HTLink_add((HTAnchor *) me->node_anchor, (HTAnchor *) dest,
(HTLinkType) HTAtom_caseFor(relation),
METHOD_INVALID);
}
HT_FREE(strval);
}
/* If reverse reference */
if ((present[HTML_LINK_REV] && value[HTML_LINK_REV])) {
char * strval = NULL;
char * ptr = NULL;
char * relation = NULL;
StrAllocCopy(strval, value[HTML_LINK_REV]);
ptr = strval;
while ((relation = HTNextLWSToken(&ptr)) != NULL) {
HTLink_add((HTAnchor *) dest, (HTAnchor *) me->node_anchor,
(HTLinkType) HTAtom_caseFor(relation),
METHOD_INVALID);
}
HT_FREE(strval);
}
/* If we got any type information as well */
if (present[HTML_LINK_TYPE] && value[HTML_LINK_TYPE]) {
if (HTAnchor_format(dest) == WWW_UNKNOWN)
HTAnchor_setFormat(dest,
(HTFormat) HTAtom_caseFor(value[HTML_LINK_TYPE]));
}
/* Call out to the layout engine */
HTextImp_foundLink(me->text, element_number, HTML_LINK_HREF,
address, present, value);
}
break;
case HTML_META:
if (present[HTML_META_NAME] && value[HTML_META_NAME]) {
HTAnchor_addMeta (me->node_anchor,
value[HTML_META_NAME],
(present[HTML_META_CONTENT] && value[HTML_META_CONTENT]) ?
value[HTML_META_CONTENT] : "");
}
break;
case HTML_OBJECT:
if (present[HTML_OBJECT_CLASSID] && value[HTML_OBJECT_CLASSID]) {
address = HTAnchor_findChildAndLink(me->node_anchor, NULL,
value[HTML_OBJECT_CLASSID], NULL);
HTextImp_foundLink(me->text, element_number, HTML_OBJECT_CLASSID,
address, present, value);
}
if (present[HTML_OBJECT_CODEBASE] && value[HTML_OBJECT_CODEBASE]) {
address = HTAnchor_findChildAndLink(me->node_anchor, NULL,
value[HTML_OBJECT_CODEBASE], NULL);
HTextImp_foundLink(me->text, element_number, HTML_OBJECT_CODEBASE,
address, present, value);
}
if (present[HTML_OBJECT_DATA] && value[HTML_OBJECT_DATA]) {
address = HTAnchor_findChildAndLink(me->node_anchor, NULL,
value[HTML_OBJECT_DATA], NULL);
HTextImp_foundLink(me->text, element_number, HTML_OBJECT_DATA,
address, present, value);
}
if (present[HTML_OBJECT_ARCHIVE] && value[HTML_OBJECT_ARCHIVE]) {
address = HTAnchor_findChildAndLink(me->node_anchor, NULL,
value[HTML_OBJECT_ARCHIVE], NULL);
HTextImp_foundLink(me->text, element_number, HTML_OBJECT_ARCHIVE,
address, present, value);
}
if (present[HTML_OBJECT_USEMAP] && value[HTML_OBJECT_USEMAP]) {
address = HTAnchor_findChildAndLink(me->node_anchor, NULL,
value[HTML_OBJECT_USEMAP], NULL);
HTextImp_foundLink(me->text, element_number, HTML_OBJECT_USEMAP,
address, present, value);
}
break;
case HTML_PRE:
if (me->comment_end)
HTextImp_addText(me->text, me->comment_end, strlen(me->comment_end));
break;
case HTML_TITLE:
HTChunk_truncate(me->title,0);
break;
}
/* Update our parse stack */
if (SGML_findTagContents(me->dtd, element_number) != SGML_EMPTY) {
if (me->sp == me->stack) {
HTTRACE(SGML_TRACE, "HTML Parser. Maximum nesting of %d exceded!\n" _ MAX_NESTING);
me->overflow++;
return;
}
--(me->sp);
me->sp[0] = element_number;
}
/* Call out to the layout engine */
HTextImp_beginElement(me->text, element_number, present, value);
}
