2019-03-28 13:45:03 +00:00
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#!/usr/bin/env python
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# -*- mode: python; indent-tabs-mode: nil; -*- coding: utf-8 -*-
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"""
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CoverPages.py
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Copyright 2009-2010 by Marcello Perathoner
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Distributable under the GNU General Public License Version 3 or newer.
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Serve cover images of most popular and latest ebooks.
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"""
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from __future__ import unicode_literals
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import cherrypy
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import six
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from libgutenberg import GutenbergGlobals as gg
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import BaseSearcher
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class CoverPages (object):
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""" Output a gallery of cover pages. """
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orders = { 'latest': 'release_date',
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'popular': 'downloads' }
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@staticmethod
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def serve (rows, size):
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""" Output a gallery of coverpages. """
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cherrypy.response.headers['Content-Type'] = 'text/html; charset=utf-8'
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cherrypy.response.headers['Content-Language'] = 'en'
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s = """<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en" xml:base="http://www.gutenberg.org">
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<head>
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<title>Cover Flow</title>
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2020-03-11 17:47:54 +00:00
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<style>
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2019-03-28 13:45:03 +00:00
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.cover-thumb {
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display: inline-block;
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background-position: center;
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background-repeat: no-repeat;
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}
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.cover-thumb-small {
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width: 76px;
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height: 110px;
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}
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.cover-thumb-medium {
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width: 210px;
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height: 310px;
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}
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2020-03-11 17:47:54 +00:00
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</style>
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2019-03-28 13:45:03 +00:00
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</head>
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<body><div>"""
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for row in rows:
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url = '/' + row.filename
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href = '/ebooks/%d' % row.pk
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title = gg.xmlspecialchars (row.title)
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title = title.replace ('"', '"')
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s += """<a href="{href}"
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title="{title}"
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2020-03-10 20:14:15 +00:00
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class="cover-thumb cover-thumb-{size}" target="_top"
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style="background-image: url({url})"> </a>\n""".format (
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2019-03-28 13:45:03 +00:00
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url = url, href = href, title = title, size = size)
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return (s + '</div></body></html>\n').encode ('utf-8')
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def index (self, count, size, order, **kwargs):
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""" Internal help function. """
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try:
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count = int (count)
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if count < 1:
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raise ValueError ('count < 0')
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if size not in ('small', 'medium'):
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raise ValueError ('bogus size')
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order = 'books.%s' % self.orders[order]
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rows = BaseSearcher.SQLSearcher.execute (
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"""SELECT files.filename, books.pk, books.title FROM files, books
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WHERE files.fk_books = books.pk
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AND files.diskstatus = 0
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AND files.fk_filetypes = %%(size)s
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ORDER BY %s DESC
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OFFSET 1 LIMIT %%(count)s -- %s""" % (order, cherrypy.request.remote.ip),
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{ 'count': count,
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'size': 'cover.%s' % size,
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})
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if rows:
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return self.serve (rows, size)
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except (ValueError, KeyError) as what:
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raise cherrypy.HTTPError (400, 'Bad Request. %s' % six.text_type (what))
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except IOError:
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pass
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raise cherrypy.HTTPError (500, 'Internal Server Error.')
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