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"""A subclass of Cheetah.Template for use in CGI scripts.
Usage in a template:
#extends Cheetah.Tools.CGITemplate
#implements respond
$cgiHeaders#slurp
Usage in a template inheriting a Python class:
1. The template
#extends MyPythonClass
#implements respond
$cgiHeaders#slurp
2. The Python class
from Cheetah.Tools import CGITemplate
class MyPythonClass(CGITemplate):
def cgiHeadersHook(self):
return "Content-Type: text/html; charset=koi8-r\n\n"
To read GET/POST variables, use the .webInput method defined in
Cheetah.Utils.WebInputMixin (available in all templates without importing
anything), use Python's 'cgi' module, or make your own arrangements.
This class inherits from Cheetah.Template to make it usable in Cheetah's
single-inheritance model.
"""
import os
from Cheetah.Template import Template
class CGITemplate(Template):
"""Methods useful in CGI scripts.
Any class that inherits this mixin must also inherit Cheetah.Servlet.
"""
def cgiHeaders(self):
"""Outputs the CGI headers if this is a CGI script.
Usage: $cgiHeaders#slurp
Override .cgiHeadersHook() if you want to customize the headers.
"""
if self.isCgi():
return self.cgiHeadersHook()
def cgiHeadersHook(self):
"""Override if you want to customize the CGI headers.
"""
return "Content-type: text/html\n\n"
def isCgi(self):
"""Is this a CGI script?
"""
env = 'REQUEST_METHOD' in os.environ
wk = self._CHEETAH__isControlledByWebKit
return env and not wk
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