def error_page(app, html):
'WSGI middleware for serving static "Internal Server Error" page.'
app = lighten(app)
error_response = ('500 Internal Server Error',
[('Content-Type', 'text/html; charset=utf-8')],
[html])
@lite
def error_page_middleware(environ):
try:
return app(environ)
except Exception:
log.error('Uncaught exception', exc_info=True)
return error_response
return error_page_middleware
def latinator(app):
from wsgi_lite import lite, lighten
def middleware(environ):
status, headers, body = app(environ)
for name, value in headers:
if name.lower() == 'content-type' and value == 'text/plain':
break
else:
# Not text/plain, pass it through unchanged
return status, headers, body
# Strip content-length if present, else it'll be wrong
headers = [
(name, value) for name, value in headers
if name.lower() != 'content-length'
]
def pliter(body): # Python 2.3 doesn't do generator expressions
for data in body: yield piglatin(data)
return status, headers, pliter(body)
# Make sure that `app` can be invoked via the Lite protocol
app = lighten(app)
return lite(middleware)
