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############################################################
## Apps
############################################################
def simple_app(response, environ, start_response):
start_response('200 OK', [('Content-type', 'text/html')])
return ['This is ', response]
def basic_app(environ, start_response):
return simple_app('basic app', environ, start_response)
def make_basic_app(global_conf, **conf):
return basic_app
def basic_app2(environ, start_response):
return simple_app('basic app2', environ, start_response)
def make_basic_app2(global_conf, **conf):
return basic_app2
############################################################
## Composits
############################################################
def make_remote_addr(loader, global_conf, **conf):
apps = {}
addrs = {}
for name, value in conf.items():
if name.startswith('app.'):
apps[name[4:]] = loader.get_app(value, global_conf)
elif name.startswith('addr.'):
addrs[name[5:]] = value
dispatcher = RemoteAddrDispatch()
for name in apps:
dispatcher.map[addrs[name]] = apps[name]
return dispatcher
class RemoteAddrDispatch(object):
def __init__(self, map=None):
self.map = map or {}
def __call__(self, environ, start_response):
addr = environ['REMOTE_ADDR']
app = self.map.get(addr) or self.map['0.0.0.0']
return app(environ, start_response)
############################################################
## Filters
############################################################
def make_cap_filter(global_conf, method_to_call='upper'):
def cap_filter(app):
return CapFilter(app, global_conf, method_to_call)
return cap_filter
class CapFilter(object):
def __init__(self, app, global_conf, method_to_call='upper'):
self.app = app
self.method_to_call = method_to_call
self.global_conf = global_conf
def __call__(self, environ, start_response):
app_iter = self.app(environ, start_response)
for item in app_iter:
yield getattr(item, self.method_to_call)()
if hasattr(app_iter, 'close'):
app_iter.close()
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