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#!/usr/bin/env python2
import db, codec, os, json, mimetypes, datetime, re, cgi
from config import config
class JSONApplication(object):
@staticmethod
def cache_check(track):
ext = os.path.splitext(track.filename)[-1][1:]
if ext in config.get('allow_extensions').split():
return True
try:
r = codec.Recoder(track.get_path(), config.get('encoder'), track.file_index, os.path.join(config.get('cache_dir'), str(track.id)))
except codec.DecoderNotFoundError:
return False
return os.path.exists(r.enc_destination)
@staticmethod
def format_track(track):
d = track.dict()
d['cache'] = JSONApplication.cache_check(track)
return d
def list(self, environ, start_response, path):
root_id = int(path[1]) if len(path) > 1 and len(path[1]) else 0
session = db.Session()
try:
if root_id > 0:
directory = db.Directory.get_by_id(session, root_id)
else:
directory = db.Directory.get(session, config.get('music_root'))
directories = directory.children
tracks = directory.tracks
contents = json.dumps([x.dict() for x in directories] +
[self.format_track(x) for x in tracks])
finally:
session.close()
start_response('200 OK', [('Content-Type', 'application/json'), ('Content-Length', str(len(contents)))])
return [contents]
def hint(self, environ, start_response, path):
track_id = int(path[1])
session = db.Session()
try:
track = db.Track.get_by_id(session, track_id)
cached = self.cache_check(track)
finally:
session.close()
if not cached:
r = codec.Recoder(track.get_path(), config.get('encoder'), track.file_index, os.path.join(config.get('cache_dir'), str(track.id)))
r.recode()
start_response('200 OK', [('Content-Type', 'application/json')])
return [json.dumps({'recoded': not cached})]
re_search = re.compile(r'(")?((?(1)[^"]|[^ ])+)(?(1)")')
def search(self, environ, start_response, path):
args = cgi.FieldStorage(environ = environ)
query = args.getvalue('q')
r = self.re_search.findall(query)
d = {}
l = []
for _, v in r:
if ':' in v:
k, v = v.split(':', 1)
d[k] = v
else:
l.append(v)
results = []
try:
session = db.Session()
r = db.Track.search(session, *l, **d)
results = [self.format_track(x) for x in r]
finally:
session.close()
start_response('200 OK', [])
return json.dumps(results)
handlers = {
'list': list,
'hint': hint,
'search': search,
}
def __call__(self, environ, start_response, path):
module = path[0]
if module in self.handlers:
return self.handlers[module](self, environ, start_response, path)
class Application(object):
rfc1123_format = '%a, %d %b %Y %H:%M:%S +0000'
def __init__(self):
self.jsonapp = JSONApplication()
def json(self, environ, start_response, path):
path.pop(0)
return self.jsonapp(environ, start_response, path)
def _serve_path(self, environ, start_response, filename):
if not os.path.exists(filename) or '..' in filename.split(os.path.sep):
start_response('404 Not Found', [])
return []
do_range = 'HTTP_RANGE' in environ
if do_range:
file_range = environ['HTTP_RANGE'].split('bytes=')[1]
mime = mimetypes.guess_type(filename, strict = False)[0] or 'application/octet-stream'
last_modified = datetime.datetime.fromtimestamp(os.path.getmtime(filename)).strftime(self.rfc1123_format)
# Range handling
if do_range:
start, end = [int(x or 0) for x in file_range.split('-')]
size = os.path.getsize(filename)
if end == 0:
end = size-1
write_out = start_response('206 Partial Content', [('Content-Type', mime),
('Content-Range', 'bytes {start}-{end}/{size}'.format(start = start, end = end, size = size)),
('Content-Length', str(end - start + 1)), ('Last-Modified', last_modified)])
f = open(filename, 'rb')
f.seek(start)
remaining = end-start+1
s = f.read(min(remaining, 1024))
while s:
write_out(s)
remaining -= len(s)
s = f.read(min(remaining, 1024))
return []
start_response('200 OK', [('Content-Type', mime), ('Content-Length', str(os.path.getsize(filename))),
('Last-Modified', last_modified)])
return open(filename, 'rb')
def static(self, environ, start_response, path):
filename = os.path.join('static', *path[1:])
return self._serve_path(environ, start_response, filename)
def track(self, environ, start_response, path):
track = int(path[1])
session = db.Session()
try:
track = db.Track.get_by_id(session, track)
filename = track.get_path()
ext = os.path.splitext(filename)[-1][1:]
if not ext in config.get('allow_extensions').split():
r = codec.Recoder(filename, config.get('encoder'), track.file_index, os.path.join(config.get('cache_dir'), str(track.id)))
filename = r.enc_destination
if not os.path.exists(filename):
r.recode()
except db.NoResultFound:
start_response('404 Not Found', [])
return []
finally:
session.close()
return self._serve_path(environ, start_response, filename)
handlers = {
'json': json,
'static': static,
'file': file,
'track': track,
}
def __call__(self, environ, start_response):
path = environ['PATH_INFO'].split('/')[1:]
module = path[0] or None
if not module:
module = 'static'
path = ['static', 'index.html']
if module in self.handlers:
return self.handlers[module](self, environ, start_response, path)
start_response('404 Not Found', [])
return []
if __name__ == '__main__':
import sys
if len(sys.argv) == 3:
from flup.server.fcgi import WSGIServer
WSGIServer(Application(), bindAddress = (sys.argv[1], int(sys.argv[2]))).run()
else:
from wsgiref.simple_server import make_server, WSGIServer
# enable IPv6
WSGIServer.address_family |= 10
httpd = make_server('', 8000, Application())
httpd.serve_forever()
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