This file is indexed.

/usr/lib/rhythmbox/plugins/context/LinksTab.py is in rhythmbox-plugins 3.1-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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# -*- Mode: python; coding: utf-8; tab-width: 8; indent-tabs-mode: t; -*-
#
# Copyright (C) 2010 Kenny Meyer <knny.myer@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, or (at your option)
# any later version.
#
# The Rhythmbox authors hereby grant permission for non-GPL compatible
# GStreamer plugins to be used and distributed together with GStreamer
# and Rhythmbox. This permission is above and beyond the permissions granted
# by the GPL license by which Rhythmbox is covered. If you modify this code
# you may extend this exception to your version of the code, but you are not
# obligated to do so. If you do not wish to do so, delete this exception
# statement from your 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA.

import os
import cgi
import urllib.request, urllib.parse
import rb

from gi.repository import GObject, Gtk
from gi.repository import RB
from gi.repository import WebKit

from mako.template import Template

import gettext
gettext.install('rhythmbox', RB.locale_dir())

class LinksTab (GObject.GObject):

    __gsignals__ = {
        'switch-tab' : (GObject.SIGNAL_RUN_LAST, GObject.TYPE_NONE,
                                (GObject.TYPE_STRING,))
    }

    def __init__ (self, shell, buttons, ds, view):
        GObject.GObject.__init__ (self)
        self.shell      = shell
        self.sp         = shell.props.shell_player
        self.db         = shell.props.db
        self.buttons    = buttons

        self.button     = Gtk.ToggleButton (label=_("Links"))
        self.datasource = ds
        self.view       = view
        self.artist     = None
        self.album      = None

        self.button.show()
        self.button.set_relief(Gtk.ReliefStyle.NONE)
        self.button.set_focus_on_click(False)
        self.button.connect ('clicked',
            lambda button : self.emit('switch-tab', 'links'))
        buttons.pack_start (self.button, True, True, 0)

    def activate (self):
        print("activating Links Tab")
        self.button.set_active(True)
        self.reload ()

    def deactivate (self):
        print("deactivating Links Tab")
        self.button.set_active(False)

    def reload (self):
        entry = self.sp.get_playing_entry ()
        if entry is None:
            return None

        artist = entry.get_string (RB.RhythmDBPropType.ARTIST)
        album = entry.get_string (RB.RhythmDBPropType.ALBUM)
        self.artist = artist
        self.album = album

        self.datasource.set_artist (artist)
        self.datasource.set_album (album)

        self.view.load_links (self.datasource)


class LinksView (GObject.GObject):

    def __init__ (self, shell, plugin, webview):
        GObject.GObject.__init__ (self)
        self.shell    = shell
        self.plugin   = plugin
        self.webview  = webview
        self.file     = ""

        plugindir = plugin.plugin_info.get_data_dir()
        self.basepath = "file://" + urllib.request.pathname2url(plugindir)

    def load_links (self, ds):
        print("Loading links into webview")
        self.path = rb.find_plugin_file(self.plugin, 'tmpl/links-tmpl.html')
        self.images = self.basepath + '/img/links/'
        self.styles = self.basepath + '/tmpl/main.css'
        self.template = Template (filename = self.path)

        self.file = self.template.render (error      = ds.get_error (),
                                          artist     = ds.get_artist(),
                                          album      = ds.get_album (),
                                          art_links  = ds.get_artist_links (),
                                          alb_links  = ds.get_album_links (),
                                          images     = self.images,
                                          stylesheet = self.styles )

        self.webview.load_string (self.file, 'text/html', 'utf-8', self.basepath)


class LinksDataSource (GObject.GObject):

    def __init__ (self, db):
        GObject.GObject.__init__ (self)

        self.db = db
        self.entry = None
        self.error = None

        self.artist = None
        self.album = None

    def set_artist (self, artist):
        self.artist = artist

    def get_artist (self):
        return self.artist

    def set_album (self, album):
        self.album = album

    def get_album (self):
        return self.album

    def get_artist_links (self):
        """
        Return a dictionary with artist URLs to popular music databases and
        encyclopedias.
        """
        artist = self.get_artist()
        if artist is not "" and artist is not None:
            wpartist = artist.replace(" ", "_")
            artist = urllib.parse.quote_plus(artist)
            artist_links = {
                "Wikipedia" : "http://www.wikipedia.org/wiki/%s" % wpartist,
                "Discogs"  : "http://www.discogs.com/artist/%s" % artist,
                "Allmusic" : "http://www.allmusic.com/search/artist/%s" % artist
            }
            return artist_links
        return None

    def get_album_links (self):
        """
        Return a dictionary with album URLs to popular music databases and
        encyclopedias.
        """
        album = self.get_album()
        if album is not "" and album is not None:
            wpalbum = album.replace(" ", "_")
            album = urllib.parse.quote_plus(album)
            album_links = {
                "Wikipedia" : "http://www.wikipedia.org/wiki/%s" % wpalbum,
                "Discogs" : "http://www.discogs.com/search?type=album&q=%s&f=html" % album,
                "Allmusic" : "http://allmusic.com/search/album/%s" % album
            }
            return album_links
        return None

    def get_error (self):
        if self.get_artist() is "":
            return _("No artist specified.")