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# NanoBlogger RSS 1.0 Feed Plugin
# concatenate modification variables
FEEDMOD_VAR="$New_EntryFile$Edit_EntryFile$Delete_EntryFile$Move_EntryFile$USR_TITLE"
# use entry excerpts from entry excerpts plugin
# (excerpts plugin must be enabled to work)
ENTRY_EXCERPTS=0
# limit number of items to include in feed
: ${FEED_ITEMS:=10}
: ${RSS_ITEMS:=$FEED_ITEMS}
# build rss feeds for categories (0/1 = off/on)
: ${RSS_CATFEEDS:=0}
# output filename of rss feed
NB_RSSFile="index.$NB_SYND_FILETYPE"
# rss feed version
NB_RSSVer="1.0"
NB_RSSModDate=`date "+%Y-%m-%dT%H:%M:%S${BLOG_TZD}"`
# set link to archives
NB_RSSArchivesPath="$BLOG_URL/$ARCHIVES_DIR/"
# backwards support for deprecated BLOG_LANG
: ${BLOG_FEED_LANG:=$BLOG_LANG}
if [ ! -z "$FEEDMOD_VAR" ] || [ "$USR_QUERY" = all ]; then
set_baseurl "$BLOG_URL/"
# escape special characters to help create valid xml feeds
esc_chars(){
sed -e '/[\&][ ]/ s//\& /g; /[\"]/ s//\"/g'
}
NB_RSSTitle=`echo "$BLOG_TITLE" |esc_chars`
NB_RSSAuthor=`echo "$BLOG_AUTHOR" |esc_chars`
# make rss feed
make_rssfeed(){
MKPAGE_OUTFILE="$1"
mkdir -p `dirname "$MKPAGE_OUTFILE"`
BLOG_FEED_URL="$BLOG_URL"
[ ! -z "$NB_RSSLink" ] && [ "$db_catquery" != nocat ] &&
BLOG_FEED_URL="$BLOG_URL/$ARCHIVES_DIR/$NB_RSSLink"
cat > "$MKPAGE_OUTFILE" <<-EOF
<?xml version="1.0" encoding="$BLOG_CHARSET"?>
<!DOCTYPE rdf:RDF [
<!ENTITY % HTMLlat1 PUBLIC
"-//W3C//ENTITIES Latin 1 for XHTML//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml-lat1.ent">
]>
<rdf:RDF
xmlns="http://purl.org/rss/1.0/"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:content="http://purl.org/rss/1.0/modules/content/"
xmlns:admin="http://webns.net/mvcb/"
>
<channel rdf:about="$BLOG_URL">
<title>$NB_RSSTitle</title>
<link>$BLOG_FEED_URL</link>
<description>$BLOG_DESCRIPTION</description>
<dc:language>$BLOG_FEED_LANG</dc:language>
<dc:creator>$NB_RSSAuthor</dc:creator>
<dc:date>$NB_RSSModDate</dc:date>
<admin:generatorAgent rdf:resource="http://nanoblogger.sourceforge.net" />
<items>
<rdf:Seq>
$NB_RSSItems
</rdf:Seq>
</items>
</channel>
$NB_RSSEntries
</rdf:RDF>
EOF
nb_msg "$MKPAGE_OUTFILE"
# load makepage tidy plugin
[ -f "$PLUGINS_DIR"/makepage/tidy.sh ] &&
. "$PLUGINS_DIR"/makepage/tidy.sh
}
# generate feed entries
build_rssfeed(){
db_catquery="$1"
query_db all "$db_catquery" limit "$RSS_ITEMS"
ARCHIVE_LIST=(${DB_RESULTS[@]})
RSS_SEQFILE="$SCRATCH_FILE.rss_seq"
> "$SCRATCH_FILE".rssfeed
> "$RSS_SEQFILE"
for entry in ${ARCHIVE_LIST[@]}; do
NB_RSSEntryTime=`echo "$entry" |sed -e '/\_/ s//\:/g; s/[\.]'$NB_DATATYPE'//g'`
load_entry "$NB_DATA_DIR/$entry" ALL
set_entrylink "$entry"
echo '<rdf:li rdf:resource="'${NB_RSSArchivesPath}$NB_EntryPermalink'" />' >> "$RSS_SEQFILE"
# non-portable find command!
#NB_RSSEntryModDate=`find "$NB_DATA_DIR/$entry" -printf "%TY-%Tm-%TdT%TH:%TM:%TS${BLOG_TZD}"`
NB_RSSEntryTitle=`echo "$NB_EntryTitle" |esc_chars`
NB_RSSEntryAuthor=`echo "$NB_EntryAuthor" |esc_chars`
NB_RSSEntrySubject=; cat_title=; oldcat_title=
rss_catids=(`sed -e '/'$entry'[\>]/!d; /[\>\,]/ s// /g' \
"$NB_DATA_DIR/master.$NB_DBTYPE" |cut -d" " -f 2-`)
for rss_catnum in ${rss_catids[@]}; do
cat_title=`sed 1q "$NB_DATA_DIR"/cat_"$rss_catnum.$NB_DBTYPE"`
[ "$cat_title" != "$oldcat_title" ] &&
cat_title="$oldcat_title $cat_title"
oldcat_title="$cat_title,"
done
if [ ! -z "$cat_title" ]; then
cat_title=`echo $cat_title |sed -e '{$ s/\,[ ]$//g; }' |esc_chars`
NB_RSSEntrySubject=`echo '<dc:subject>'$cat_title'</dc:subject>'`
fi
if [ "$ENTRY_EXCERPTS" = 1 ]; then
#NB_RSSEntryExcerpt=`echo "$NB_EntryExcerpt" |esc_chars`
NB_RSSEntryExcerpt="$NB_EntryExcerpt"
else
#NB_RSSEntryExcerpt=`echo "$NB_EntryBody" |esc_chars`
NB_RSSEntryExcerpt="$NB_EntryBody"
fi
cat >> "$SCRATCH_FILE".rssfeed <<-EOF
<item rdf:about="${NB_RSSArchivesPath}$NB_EntryPermalink">
<link>${NB_RSSArchivesPath}$NB_EntryPermalink</link>
<title>$NB_RSSEntryTitle</title>
<dc:date>$NB_RSSEntryTime${BLOG_TZD}</dc:date>
<dc:creator>$NB_RSSEntryAuthor</dc:creator>
$NB_RSSEntrySubject
<description><![CDATA[$NB_RSSEntryExcerpt]]></description>
</item>
EOF
done
NB_RSSItems=$(< "$RSS_SEQFILE")
NB_RSSEntries=$(< "$SCRATCH_FILE".rssfeed)
}
# generate category feed entries
build_rss_catfeeds(){
if [ "$CATEGORY_FEEDS" = 1 ] || [ "$RSS_CATFEEDS" = 1 ]; then
db_categories=(${CAT_LIST[*]})
if [ ! -z "${db_categories[*]}" ]; then
for cat_db in ${db_categories[@]}; do
if [ -f "$NB_DATA_DIR/$cat_db" ]; then
set_catlink "$cat_db"
NB_RSSTitle=`sed 1q "$NB_DATA_DIR/$cat_db" |esc_chars`
NB_RSSCatFile=`chg_suffix "$category_file" $NB_SYND_FILETYPE`
NB_RSSFile=`chg_suffix "$category_file" $NB_FILETYPE`
NB_RSSLink="$category_link"
nb_msg "$plugins_action rss $NB_RSSVer feed for category ..."
build_rssfeed "$cat_db"
make_rssfeed "$BLOG_DIR/$ARCHIVES_DIR/$NB_RSSCatFile"
fi
done
fi
fi
}
nb_msg "$plugins_action rss $NB_RSSVer feed ..."
build_rssfeed nocat
make_rssfeed "$BLOG_DIR/$NB_RSSFile"
build_rss_catfeeds
fi
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