CherryPy / cherrypy / test / test_misc_tools.py

import os
localDir = os.path.dirname(__file__)
logfile = os.path.join(localDir, "test_misc_tools.log")

import cherrypy
from cherrypy import tools


def setup_server():
    class Root:
        def index(self):
            yield "Hello, world"
        index.exposed = True
        h = [("Content-Language", "en-GB"), ('Content-Type', 'text/plain')]
        tools.response_headers(headers=h)(index)

        def other(self):
            return "salut"
        other.exposed = True
        other._cp_config = {
            'tools.response_headers.on': True,
            'tools.response_headers.headers': [("Content-Language", "fr"),
                                               ('Content-Type', 'text/plain')],
            'tools.log_hooks.on': True,
            }


    class Accept:
        _cp_config = {'tools.accept.on': True}

        def index(self):
            return '<a href="feed">Atom feed</a>'
        index.exposed = True

        # In Python 2.4+, we could use a decorator instead:
        # @tools.accept('application/atom+xml')
        def feed(self):
            return """<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
    <title>Unknown Blog</title>
</feed>"""
        feed.exposed = True
        feed._cp_config = {'tools.accept.media': 'application/atom+xml'}

        def select(self):
            # We could also write this: mtype = cherrypy.lib.accept.accept(...)
            mtype = tools.accept.callable(['text/html', 'text/plain'])
            if mtype == 'text/html':
                return "<h2>Page Title</h2>"
            else:
                return "PAGE TITLE"
        select.exposed = True

    class Referer:
        def accept(self):
            return "Accepted!"
        accept.exposed = True
        reject = accept

    class AutoVary:
        def index(self):
            # Read a header directly with 'get'
            ae = cherrypy.request.headers.get('Accept-Encoding')
            # Read a header directly with '__getitem__'
            cl = cherrypy.request.headers['Host']
            # Read a header directly with '__contains__'
            hasif = 'If-Modified-Since' in cherrypy.request.headers
            # Read a header directly with 'has_key'
            if hasattr(dict, 'has_key'):
                # Python 2
                has = cherrypy.request.headers.has_key('Range')
            else:
                # Python 3
                has = 'Range' in cherrypy.request.headers
            # Call a lib function
            mtype = tools.accept.callable(['text/html', 'text/plain'])
            return "Hello, world!"
        index.exposed = True

    conf = {'/referer': {'tools.referer.on': True,
                         'tools.referer.pattern': r'http://[^/]*example\.com',
                         },
            '/referer/reject': {'tools.referer.accept': False,
                                'tools.referer.accept_missing': True,
                                },
            '/autovary': {'tools.autovary.on': True},
            }

    root = Root()
    root.referer = Referer()
    root.accept = Accept()
    root.autovary = AutoVary()
    cherrypy.tree.mount(root, config=conf)
    cherrypy.config.update({'log.error_file': logfile})


from cherrypy.test import helper

class ResponseHeadersTest(helper.CPWebCase):
    setup_server = staticmethod(setup_server)

    def testResponseHeadersDecorator(self):
        self.getPage('/')
        self.assertHeader("Content-Language", "en-GB")
        self.assertHeader('Content-Type', 'text/plain;charset=utf-8')

    def testResponseHeaders(self):
        self.getPage('/other')
        self.assertHeader("Content-Language", "fr")
        self.assertHeader('Content-Type', 'text/plain;charset=utf-8')


class RefererTest(helper.CPWebCase):
    setup_server = staticmethod(setup_server)

    def testReferer(self):
        self.getPage('/referer/accept')
        self.assertErrorPage(403, 'Forbidden Referer header.')

        self.getPage('/referer/accept',
                     headers=[('Referer', 'http://www.example.com/')])
        self.assertStatus(200)
        self.assertBody('Accepted!')

        # Reject
        self.getPage('/referer/reject')
        self.assertStatus(200)
        self.assertBody('Accepted!')

        self.getPage('/referer/reject',
                     headers=[('Referer', 'http://www.example.com/')])
        self.assertErrorPage(403, 'Forbidden Referer header.')


class AcceptTest(helper.CPWebCase):
    setup_server = staticmethod(setup_server)

    def test_Accept_Tool(self):
        # Test with no header provided
        self.getPage('/accept/feed')
        self.assertStatus(200)
        self.assertInBody('<title>Unknown Blog</title>')

        # Specify exact media type
        self.getPage('/accept/feed', headers=[('Accept', 'application/atom+xml')])
        self.assertStatus(200)
        self.assertInBody('<title>Unknown Blog</title>')

        # Specify matching media range
        self.getPage('/accept/feed', headers=[('Accept', 'application/*')])
        self.assertStatus(200)
        self.assertInBody('<title>Unknown Blog</title>')

        # Specify all media ranges
        self.getPage('/accept/feed', headers=[('Accept', '*/*')])
        self.assertStatus(200)
        self.assertInBody('<title>Unknown Blog</title>')

        # Specify unacceptable media types
        self.getPage('/accept/feed', headers=[('Accept', 'text/html')])
        self.assertErrorPage(406,
                             "Your client sent this Accept header: text/html. "
                             "But this resource only emits these media types: "
                             "application/atom+xml.")

        # Test resource where tool is 'on' but media is None (not set).
        self.getPage('/accept/')
        self.assertStatus(200)
        self.assertBody('<a href="feed">Atom feed</a>')

    def test_accept_selection(self):
        # Try both our expected media types
        self.getPage('/accept/select', [('Accept', 'text/html')])
        self.assertStatus(200)
        self.assertBody('<h2>Page Title</h2>')
        self.getPage('/accept/select', [('Accept', 'text/plain')])
        self.assertStatus(200)
        self.assertBody('PAGE TITLE')
        self.getPage('/accept/select', [('Accept', 'text/plain, text/*;q=0.5')])
        self.assertStatus(200)
        self.assertBody('PAGE TITLE')

        # text/* and */* should prefer text/html since it comes first
        # in our 'media' argument to tools.accept
        self.getPage('/accept/select', [('Accept', 'text/*')])
        self.assertStatus(200)
        self.assertBody('<h2>Page Title</h2>')
        self.getPage('/accept/select', [('Accept', '*/*')])
        self.assertStatus(200)
        self.assertBody('<h2>Page Title</h2>')

        # Try unacceptable media types
        self.getPage('/accept/select', [('Accept', 'application/xml')])
        self.assertErrorPage(406,
                             "Your client sent this Accept header: application/xml. "
                             "But this resource only emits these media types: "
                             "text/html, text/plain.")


class AutoVaryTest(helper.CPWebCase):
    setup_server = staticmethod(setup_server)

    def testAutoVary(self):
        self.getPage('/autovary/')
        self.assertHeader(
            "Vary", 'Accept, Accept-Charset, Accept-Encoding, Host, If-Modified-Since, Range')
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