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class StaticContent:
"""
This wsgi application provides static content on whatever request it
receives with method GET or HEAD (content stripped). If not present, a
content-length header is computed.
"""
def __init__(self, status, headers, content):
"""
@type status: str
@param status: is the HTTP status returned to the browser (ex: "200 OK")
@type headers: list
@param headers: is a list of (header, value) pairs being delivered as
HTTP headers
@type content: basestring
@param content: contains the data to be delivered to the client. It is
either a string or some kind of iterable yielding strings.
"""
assert isinstance(status, str)
assert isinstance(headers, list)
assert isinstance(content, basestring) or hasattr(content, "__iter__")
self.status = status
self.headers = headers
length = -1
if isinstance(content, basestring):
self.content = [content]
length = len(content)
else:
self.content = content
if isinstance(self.content, list):
length = sum(map(len, self.content))
if length >= 0:
if not [v for h, v in headers if h.lower() == "content-length"]:
headers.append(("Content-length", str(length)))
def __call__(self, environ, start_response):
"""wsgi interface"""
assert isinstance(environ, dict)
if environ["REQUEST_METHOD"].upper() not in ["GET", "HEAD"]:
resp = "Request method not implemented"
start_response("501 Not Implemented",
[("Content-length", str(len(resp)))])
return [resp]
start_response(self.status, self.headers)
if environ["REQUEST_METHOD"].upper() == "HEAD":
return []
return self.content
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