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/**
* @file pie_entry.c Atom0.3 entry parsing
*
* Copyright (C) 2003-2009 Lars Lindner <lars.lindner@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <string.h>
#include <libxml/xmlmemory.h>
#include <libxml/parser.h>
#include "common.h"
#include "date.h"
#include "feed_parser.h"
#include "pie_entry.h"
#include "pie_feed.h"
#include "metadata.h"
#include "xml.h"
/* <content> tag support, FIXME: base64 not supported */
/* method to parse standard tags for each item element */
itemPtr parseEntry(feedParserCtxtPtr ctxt, xmlNodePtr cur) {
xmlChar *xtmp;
gchar *tmp2, *tmp;
NsHandler *nsh;
parseItemTagFunc pf;
g_assert(NULL != cur);
ctxt->item = item_new();
cur = cur->xmlChildrenNode;
while(cur) {
if(!cur->name) {
g_warning("invalid XML: parser returns NULL value -> tag ignored!");
cur = cur->next;
continue;
}
/* check namespace of this tag */
if(cur->ns) {
if((cur->ns->href && (nsh = (NsHandler *)g_hash_table_lookup(ns_pie_ns_uri_table, (gpointer)cur->ns->href))) ||
(cur->ns->prefix && (nsh = (NsHandler *)g_hash_table_lookup(pie_nstable, (gpointer)cur->ns->prefix)))) {
if(NULL != (pf = nsh->parseItemTag))
(*pf)(ctxt, cur);
cur = cur->next;
continue;
} else {
/*g_print("unsupported namespace \"%s\"\n", cur->ns->prefix);*/
}
} /* explicitly no following else !!! */
if(!xmlStrcmp(cur->name, BAD_CAST"title")) {
if(NULL != (tmp = unhtmlize(pie_parse_content_construct(cur)))) {
item_set_title(ctxt->item, tmp);
g_free(tmp);
}
} else if(!xmlStrcmp(cur->name, BAD_CAST"link")) {
if(NULL != (tmp2 = xml_get_attribute(cur, "href"))) {
/* 0.3 link : rel, type and href attribute */
xtmp = xmlGetProp(cur, BAD_CAST"rel");
if(xtmp != NULL && !xmlStrcmp(xtmp, BAD_CAST"alternate"))
item_set_source(ctxt->item, tmp2);
/* else
FIXME: Maybe do something with other links? */
xmlFree(xtmp);
g_free(tmp2);
} else {
/* 0.2 link : element content is the link, or non-alternate link in 0.3 */
if(NULL != (tmp = (gchar *)xmlNodeListGetString(ctxt->doc, cur->xmlChildrenNode, 1))) {
item_set_source(ctxt->item, tmp);
g_free(tmp);
}
}
} else if(!xmlStrcmp(cur->name, BAD_CAST"author")) {
/* parse feed author */
tmp = parseAuthor(cur);
ctxt->item->metadata = metadata_list_append(ctxt->item->metadata, "author", tmp);
g_free(tmp);
} else if(!xmlStrcmp(cur->name, BAD_CAST"contributor")) {
/* parse feed contributors */
tmp = parseAuthor(cur);
ctxt->item->metadata = metadata_list_append(ctxt->item->metadata, "contributor", tmp);
g_free(tmp);
} else if(!xmlStrcmp(cur->name, BAD_CAST"id")) {
if(NULL != (tmp = (gchar *)xmlNodeListGetString(ctxt->doc, cur->xmlChildrenNode, 1))) {
item_set_id(ctxt->item, tmp);
g_free(tmp);
}
} else if(!xmlStrcmp(cur->name, BAD_CAST"issued")) {
/* FIXME: is <modified> or <issued> or <created> the time tag we want to display? */
if(NULL != (tmp = (gchar *)xmlNodeListGetString(ctxt->doc, cur->xmlChildrenNode, 1))) {
ctxt->item->time = date_parse_ISO8601 (tmp);
g_free(tmp);
}
} else if(!xmlStrcmp(cur->name, BAD_CAST"content")) {
/* <content> support */
if(NULL != (tmp = pie_parse_content_construct(cur))) {
item_set_description(ctxt->item, tmp);
g_free(tmp);
}
} else if(!xmlStrcmp(cur->name, BAD_CAST"summary")) {
/* <summary> can be used for short text descriptions, if there is no
<content> description we show the <summary> content */
if(!item_get_description(ctxt->item)) {
if(NULL != (tmp = pie_parse_content_construct(cur))) {
item_set_description(ctxt->item, tmp);
g_free(tmp);
}
}
} else if(!xmlStrcmp(cur->name, BAD_CAST"copyright")) {
if(NULL != (tmp = (gchar *)xmlNodeListGetString(ctxt->doc, cur->xmlChildrenNode, 1))) {
ctxt->item->metadata = metadata_list_append(ctxt->item->metadata, "copyright", tmp);
g_free(tmp);
}
}
cur = cur->next;
}
/* after parsing we fill the infos into the itemPtr structure */
ctxt->item->readStatus = FALSE;
return ctxt->item;
}
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