Cover Flow

#!/usr/bin/env python # -*- mode: python; indent-tabs-mode: nil; -*- coding: utf-8 -*- """ CoverPages.py Copyright 2009-2010 by Marcello Perathoner Distributable under the GNU General Public License Version 3 or newer. Serve cover images of most popular and latest ebooks. """ from __future__ import unicode_literals import cherrypy import six from libgutenberg import GutenbergGlobals as gg import BaseSearcher class CoverPages (object): """ Output a gallery of cover pages. """ orders = { 'latest': 'release_date', 'popular': 'downloads' } @staticmethod def serve (rows, size): """ Output a gallery of coverpages. """ cherrypy.response.headers['Content-Type'] = 'text/html; charset=utf-8' cherrypy.response.headers['Content-Language'] = 'en' s = """ Cover Flow

""" for row in rows: url = '/' + row.filename href = '/ebooks/%d' % row.pk title = gg.xmlspecialchars (row.title) title = title.replace ('"', '"') s += """ \n""".format ( url = url, href = href, title = title, size = size) return (s + '

\n').encode ('utf-8') def index (self, count, size, order, **kwargs): """ Internal help function. """ try: count = int (count) if count < 1: raise ValueError ('count < 0') if size not in ('small', 'medium'): raise ValueError ('bogus size') order = 'books.%s' % self.orders[order] rows = BaseSearcher.SQLSearcher.execute ( """SELECT files.filename, books.pk, books.title FROM files, books WHERE files.fk_books = books.pk AND files.diskstatus = 0 AND files.fk_filetypes = %%(size)s ORDER BY %s DESC OFFSET 1 LIMIT %%(count)s -- %s""" % (order, cherrypy.request.remote.ip), { 'count': count, 'size': 'cover.%s' % size, }) if rows: return self.serve (rows, size) except (ValueError, KeyError) as what: raise cherrypy.HTTPError (400, 'Bad Request. %s' % six.text_type (what)) except IOError: pass raise cherrypy.HTTPError (500, 'Internal Server Error.')