static gchar*
feed_rss_formatter_format (GrssFeedFormatter *formatter)
{
const gchar *str;
const gchar *title;
const gchar *link;
gchar *formatted;
time_t date;
GList *iter;
GList *items;
GrssPerson *person;
const GList *list;
GString *text;
GrssFeedChannel *channel;
GrssFeedItem *item;
/*
Based on http://cyber.law.harvard.edu/rss/examples/rss2sample.xml
*/
text = g_string_new ("<?xml version=\"1.0\"?>\n<rss version=\"2.0\">\n");
channel = grss_feed_formatter_get_channel (formatter);
items = grss_feed_formatter_get_items (formatter);
if (channel != NULL) {
g_string_append_printf (text, "<channel>\n");
title = grss_feed_channel_get_title (channel);
if (title != NULL)
g_string_append_printf (text, "\t<title>%s</title>\n", title);
else
title = "";
str = grss_feed_channel_get_description (channel);
if (str != NULL)
g_string_append_printf (text, "\t<description>%s</description>\n", str);
link = grss_feed_channel_get_homepage (channel);
if (link != NULL)
g_string_append_printf (text, "\t<link>%s</link>\n", link);
else
link = "";
str = grss_feed_channel_get_copyright (channel);
if (str != NULL)
g_string_append_printf (text, "\t<copyright>%s</copyright>\n", str);
person = grss_feed_channel_get_editor (channel);
if (person != NULL)
// TODO: implement handling additional attrs
g_string_append_printf (text, "\t<managingEditor>%s</managingEditor>\n", grss_person_get_name (person));
str = grss_feed_channel_get_generator (channel);
if (str != NULL)
g_string_append_printf (text, "\t<generator>%s</generator>\n", str);
date = grss_feed_channel_get_update_time (channel);
formatted = date_to_ISO8601 (date);
g_string_append_printf (text, "\t<pubDate>%s</pubDate>\n", formatted);
g_free (formatted);
str = grss_feed_channel_get_image (channel);
if (str != NULL) {
g_string_append_printf (text, "\t<image>\n");
g_string_append_printf (text, "\t\t<title>%s</title>\n", title);
g_string_append_printf (text, "\t\t<url>%s</url>\n", str);
g_string_append_printf (text, "\t\t<link>%s</link>\n", link);
g_string_append_printf (text, "\t</image>\n");
}
for (iter = items; iter; iter = iter->next) {
item = iter->data;
g_string_append (text, "\t<item>\n");
str = grss_feed_item_get_title (item);
if (str != NULL)
g_string_append_printf (text, "\t\t<title>%s</title>\n", str);
str = grss_feed_item_get_id (item);
if (str != NULL)
g_string_append_printf (text, "\t\t<guid>%s</guid>\n", str);
str = grss_feed_item_get_source (item);
if (str != NULL)
g_string_append_printf (text, "\t\t<link>%s</link>\n", str);
str = grss_feed_item_get_description (item);
if (str != NULL)
g_string_append_printf (text, "\t\t<description>%s</description>\n", str);
person = grss_feed_item_get_author (item);
if (person != NULL)
// FIXME: implement adding email and uri
g_string_append_printf (text, "\t\t<author>%s</author>\n", grss_person_get_name (person));
date = grss_feed_item_get_publish_time (item);
formatted = date_to_ISO8601 (date);
g_string_append_printf (text, "\t\t<pubDate>%s</pubDate>\n", formatted);
g_free (formatted);
g_string_append (text, "\t</item>\n");
}
}
g_string_append (text, "</channel>\n</rss>");
return g_string_free (text, FALSE);
}
static gchar*
feed_atom_formatter_format (GrssFeedFormatter *formatter)
{
const gchar *str;
gchar *formatted;
time_t date;
GList *iter;
GList *items;
const GList *list;
GString *text;
GrssFeedChannel *channel;
GrssFeedItem *item;
text = g_string_new ("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<feed xmlns=\"http://www.w3.org/2005/Atom\">\n");
channel = grss_feed_formatter_get_channel (formatter);
items = grss_feed_formatter_get_items (formatter);
if (channel != NULL) {
str = grss_feed_channel_get_title (channel);
if (str != NULL)
g_string_append_printf (text, "\t<title>%s</title>\n", str);
str = grss_feed_channel_get_description (channel);
if (str != NULL)
g_string_append_printf (text, "\t<subtitle>%s</subtitle>\n", str);
str = grss_feed_channel_get_homepage (channel);
if (str != NULL)
g_string_append_printf (text, "\t<link href=\"%s\" />\n", str);
str = grss_feed_channel_get_copyright (channel);
if (str != NULL)
g_string_append_printf (text, "\t<rights>%s</rights>\n", str);
str = grss_feed_channel_get_editor (channel);
if (str != NULL)
g_string_append_printf (text, "\t<author>%s</author>\n", str);
str = grss_feed_channel_get_generator (channel);
if (str != NULL)
g_string_append_printf (text, "\t<generator>%s</generator>\n", str);
list = grss_feed_channel_get_contributors (channel);
while (list != NULL) {
g_string_append_printf (text, "\t<contributor>%s</contributor>\n", (gchar*) list->data);
list = list->next;
}
date = grss_feed_channel_get_update_time (channel);
if (date == 0)
date = grss_feed_channel_get_publish_time (channel);
formatted = date_to_ISO8601 (date);
g_string_append_printf (text, "\t<updated>%s</updated>\n", formatted);
g_free (formatted);
str = grss_feed_channel_get_icon (channel);
if (str != NULL)
g_string_append_printf (text, "\t<icon>%s</icon>\n", str);
str = grss_feed_channel_get_image (channel);
if (str != NULL)
g_string_append_printf (text, "\t<logo>%s</logo>\n", str);
for (iter = items; iter; iter = iter->next) {
item = iter->data;
g_string_append (text, "\t<entry>\n");
str = grss_feed_item_get_title (item);
if (str != NULL)
g_string_append_printf (text, "\t\t<title>%s</title>\n", str);
str = grss_feed_item_get_id (item);
if (str != NULL)
g_string_append_printf (text, "\t\t<id>%s</id>\n", str);
str = grss_feed_item_get_source (item);
if (str != NULL)
g_string_append_printf (text, "\t\t<link href=\"%s\" />\n", str);
str = grss_feed_item_get_description (item);
if (str != NULL)
g_string_append_printf (text, "\t\t<summary>%s</summary>\n", str);
str = grss_feed_item_get_author (item);
if (str != NULL)
g_string_append_printf (text, "\t\t<author>%s</author>\n", str);
str = grss_feed_item_get_copyright (item);
if (str != NULL)
g_string_append_printf (text, "\t\t<rights>%s</rights>\n", str);
list = grss_feed_item_get_contributors (item);
while (list != NULL) {
g_string_append_printf (text, "\t\t<contributor>%s</contributor>\n", (gchar*) list->data);
list = list->next;
}
date = grss_feed_item_get_publish_time (item);
formatted = date_to_ISO8601 (date);
g_string_append_printf (text, "\t\t<published>%s</published>\n", formatted);
g_free (formatted);
g_string_append (text, "\t</entry>\n");
}
}
g_string_append (text, "</feed>");
return g_string_free (text, FALSE);
}
static GList*
feed_rss_handler_parse (FeedHandler *self, GrssFeedChannel *feed, xmlDocPtr doc, gboolean do_items, GError **error)
{
gchar *tmp;
gboolean rdf;
time_t now;
GList *items;
xmlNodePtr cur;
GrssFeedItem *item;
FeedRssHandler *parser;
items = NULL;
rdf = FALSE;
now = time (NULL);
parser = FEED_RSS_HANDLER (self);
cur = xmlDocGetRootElement (doc);
while (cur && xmlIsBlankNode (cur))
cur = cur->next;
if (!xmlStrcmp (cur->name, BAD_CAST"rss")) {
cur = cur->xmlChildrenNode;
rdf = FALSE;
}
else if (!xmlStrcmp (cur->name, BAD_CAST"rdf") ||
!xmlStrcmp (cur->name, BAD_CAST"RDF")) {
cur = cur->xmlChildrenNode;
rdf = TRUE;
}
else if (!xmlStrcmp (cur->name, BAD_CAST"Channel")) {
rdf = FALSE;
}
else {
g_set_error (error, FEED_RSS_HANDLER_ERROR, FEED_RSS_HANDLER_PARSE_ERROR, "Could not find RDF/RSS header!");
return NULL;
}
while (cur && xmlIsBlankNode (cur))
cur = cur->next;
while (cur) {
if (!cur->name) {
g_warning ("invalid XML: parser returns NULL value -> tag ignored!");
cur = cur->next;
continue;
}
if ((!xmlStrcmp (cur->name, BAD_CAST"channel")) ||
(!xmlStrcmp (cur->name, BAD_CAST"Channel"))) {
parse_channel (parser, feed, doc, cur);
if (rdf == FALSE)
cur = cur->xmlChildrenNode;
break;
}
cur = cur->next;
}
/* For RDF (rss 0.9 or 1.0), cur now points to the item after the channel tag. */
/* For RSS, cur now points to the first item inside of the channel tag */
/* This ends up being the thing with the items, (and images/textinputs for RDF) */
/* parse channel contents */
while (cur) {
if (cur->type != XML_ELEMENT_NODE || NULL == cur->name) {
cur = cur->next;
continue;
}
/* save link to channel image */
if ((!xmlStrcmp (cur->name, BAD_CAST"image"))) {
if (NULL != (tmp = parse_image (cur))) {
grss_feed_channel_set_image (feed, tmp);
g_free (tmp);
}
}
else if (do_items == TRUE && (!xmlStrcmp (cur->name, BAD_CAST"items"))) { /* RSS 1.1 */
xmlNodePtr iter = cur->xmlChildrenNode;
while (iter) {
item = parse_rss_item (parser, feed, doc, iter);
if (item != NULL) {
if (grss_feed_item_get_publish_time (item) == 0)
grss_feed_item_set_publish_time (item, now);
items = g_list_append (items, item);
}
iter = iter->next;
}
}
else if (do_items == TRUE && (!xmlStrcmp (cur->name, BAD_CAST"item"))) { /* RSS 1.0, 2.0 */
item = parse_rss_item (parser, feed, doc, cur);
if (item != NULL) {
if (grss_feed_item_get_publish_time (item) == 0)
grss_feed_item_set_publish_time (item, now);
items = g_list_append (items, item);
}
}
cur = cur->next;
}
grss_feed_channel_set_format (feed, "application/rss+xml");
if (items != NULL)
items = g_list_reverse (items);
return items;
}
