+card="$_POST[\"card\"]"
+tempfile="$_DATA/temp/$card"
+cardfile="$_DATA/vcard/$card"
+attfile="$_DATA/mappings/attendance"
+
+echo "BEGIN:VCARD\r" >"$tempfile"
+echo "VERSION:4.0\r" >>"$tempfile"
+echo "N:$_POST[\"0N\"];$_POST[\"1N\"];$_POST[\"2N\"];$_POST[\"3N\"];$_POST[\"4N\"]\r" >>"$tempfile"
+echo "UID:$_POST[\"UID\"]\r" >>"$tempfile"
+for field in $VCF_FIELDS; do
+ value="$_POST[\"$field\"]"
+ n=0
+ while [ -n "$value" ]; do
+ value="$(echo "$value" |sed -r ':a;N;$!ba;s:\n:\\\\n:g;s:\r:\\\\r:g')"
+ echo "${field}:${value}\r"
+ value="$_POST[\"$field$n\"]"
+ n=$(($n + 1))
+ done
+done >>"$tempfile"
+
+case "$_POST[\"action\"]" in
+ addfield)
+ echo "$_POST[\"newfield\"]:\r" >>"$tempfile"
+ echo "END:VCARD\r" >>"$tempfile"
+ echo -n "Location: http://$HTTP_HOST/?page=attendees${filter}${filtertype}${order}&edit=$card\n\n"
+ ;;
+ update)
+ attendance=()
+ for att in attendance attendance{0..100}; do
+ [ -n "$_POST[\"$att\"]" ] && attendance+=("$_POST[\"$att\"]")
+ done
+ sed -rn 's:^(.+)'$card'$:\1:p' "$attfile" |while read course; do
+ touch "$_DATA/ical/$course"
+ done
+ sed -i -r '/^(.+)\t'$card'$/d' "$attfile"
+ for each in $attendance; do
+ echo "$each\t$card"
+ done >>"$attfile"
+ sed -rn 's:^(.+)'$card'$:\1:p' "$attfile" |while read course; do
+ touch "$_DATA/ical/$course"
+ done
+
+ echo "END:VCARD\r" >>"$tempfile"
+ mv "$tempfile" "$cardfile"
+ echo -n "Location: http://$HTTP_HOST/?page=attendees${filter}${filtertype}${order}#$card\n\n"
+ ;;
+ cancel)
+ rm "$tempfile"
+ [ -f "$cardfile" ] \
+ && echo -n "Location: http://$HTTP_HOST/?page=attendees${filter}${filtertype}${order}#$card\n\n" \
+ || echo -n "Location: http://$HTTP_HOST/?page=attendees${filter}${filtertype}${order}\n\n"
+ ;;
+ delete)
+ rm "$tempfile" "$cardfile"
+ echo -n "Location: http://$HTTP_HOST/?page=attendees${filter}${filtertype}${order}\n\n"
+ ;;
+esac