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#!/usr/bin/env python3
import argparse
import os
from flask import Flask, request, Response, render_template, send_file, templating
from lib.books import Books
from lib.util import check_auth, escape, generate_rss, read_cache
abs_path = os.path.dirname(os.path.abspath(__file__))
app = Flask(__name__)
app.config.from_pyfile(os.path.join(abs_path, 'app.cfg'))
cache_path = os.path.join(abs_path, 'cache')
json_path = os.path.join(cache_path, 'audiobooks.json')
static_path = os.path.join(abs_path, 'static')
static_index_path = os.path.join(static_path, 'index.html')
base_url = "blah.com/"
@app.route('/')
def list_books():
'''
Book listing and audiobook RSS/file download
:a: audiobook hash; if provided without :f: (file) return RSS
:f: file hash; requires associated audiobook (:a:) to download
Listing of audiobooks returned if no params provided
'''
books = read_cache(json_path)
a = request.args.get('a') # audiobook hash
f = request.args.get('f') # file hash
# audiobook and file parameters provided: serve up file
if a and f:
if not books.get(a) or not books[a]['files'].get(f):
return 'book or file not found', 404
f_path = books[a]['files'][f]['path']
return send_file(f_path, conditional=True)
# serve up audiobook RSS feed; only audiobook hash provided
elif a:
if not books.get(a):
return 'book not found', 404
rss = generate_rss(request.base_url, a, books)
return Response(rss, mimetype='text/xml')
else:
auth = request.authorization
if not auth or not check_auth(app, auth.username, auth.password):
form = {'WWW-Authenticate': 'Basic realm="o/"'}
return Response('unauthorized', 401, form)
return render_template('index.html', books=books)
def my_render_template(
app, template_name_or_list, **context
) -> str:
"""Renders a template from the template folder with the given
context.
:param template_name_or_list: the name of the template to be
rendered, or an iterable with template names
the first one existing will be rendered
:param context: the variables that should be available in the
context of the template.
"""
app.update_template_context(context)
return templating._render(
app.jinja_env.get_or_select_template(template_name_or_list),
context,
app,
)
def generate():
books = Books()
books.scan_books()
books.write_cache()
books = read_cache(json_path)
index = my_render_template(app, 'index.html', books=books, static=True)
indexfile = open(static_index_path, 'w')
indexfile.write(index)
indexfile.close()
for key in books.keys():
rss = generate_rss(base_url, key, books, static=True)
rss_path = os.path.join(static_path, key + '.xml')
rssfile = open(rss_path, 'w')
rssfile.write(rss.decode('utf-8'))
rssfile.close()
if __name__ == '__main__':
desc = 'roka: listen to audiobooks with podcast apps via RSS'
parser = argparse.ArgumentParser(description=desc)
parser.add_argument('--scan', dest='scan', action='store_true',
help='scan audiobooks directory for new books',
required=False)
parser.add_argument('--generate', dest='generate', action='store_true',
help='',
required=False)
args = parser.parse_args()
if args.scan:
books = Books()
books.scan_books()
books.write_cache()
elif args.generate:
generate()
else:
app.run(host='127.0.0.1', port='8085', threaded=True)
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