Get rid of the original token-based authorization helper

It was only used by magic-folder and that's gone now.  We have a different
authorization helper for other things now, allmydata.web.private.

src/allmydata/test/web/test_token.py

@@ -1,105 +0,0 @@
-from zope.interface import implementer
-from twisted.trial import unittest
-from twisted.web import server
-from nevow.inevow import IRequest
-from allmydata.web import common
-
-# XXX FIXME when we introduce "mock" as a dependency, these can
-# probably just be Mock instances
-@implementer(IRequest)
-class FakeRequest(object):
-    def __init__(self):
-        self.method = "POST"
-        self.fields = dict()
-        self.args = dict()
-
-
-class FakeField(object):
-    def __init__(self, *values):
-        if len(values) == 1:
-            self.value = values[0]
-        else:
-            self.value = list(values)
-
-
-class FakeClientWithToken(object):
-    token = 'a' * 32
-
-    def get_auth_token(self):
-        return self.token
-
-
-class TestTokenOnlyApi(unittest.TestCase):
-
-    def setUp(self):
-        self.client = FakeClientWithToken()
-        self.page = common.TokenOnlyWebApi(self.client)
-
-    def test_not_post(self):
-        req = FakeRequest()
-        req.method = "GET"
-
-        self.assertRaises(
-            server.UnsupportedMethod,
-            self.page.render, req,
-        )
-
-    def test_missing_token(self):
-        req = FakeRequest()
-
-        exc = self.assertRaises(
-            common.WebError,
-            self.page.render, req,
-        )
-        self.assertEquals(exc.text, "Missing token")
-        self.assertEquals(exc.code, 401)
-
-    def test_token_in_get_args(self):
-        req = FakeRequest()
-        req.args['token'] = 'z' * 32
-
-        exc = self.assertRaises(
-            common.WebError,
-            self.page.render, req,
-        )
-        self.assertEquals(exc.text, "Do not pass 'token' as URL argument")
-        self.assertEquals(exc.code, 400)
-
-    def test_invalid_token(self):
-        wrong_token = 'b' * 32
-        req = FakeRequest()
-        req.fields['token'] = FakeField(wrong_token)
-
-        exc = self.assertRaises(
-            common.WebError,
-            self.page.render, req,
-        )
-        self.assertEquals(exc.text, "Invalid token")
-        self.assertEquals(exc.code, 401)
-
-    def test_valid_token_no_t_arg(self):
-        req = FakeRequest()
-        req.fields['token'] = FakeField(self.client.token)
-
-        with self.assertRaises(common.WebError) as exc:
-            self.page.render(req)
-        self.assertEquals(exc.exception.text, "Must provide 't=' argument")
-        self.assertEquals(exc.exception.code, 400)
-
-    def test_valid_token_invalid_t_arg(self):
-        req = FakeRequest()
-        req.fields['token'] = FakeField(self.client.token)
-        req.args['t'] = 'not at all json'
-
-        with self.assertRaises(common.WebError) as exc:
-            self.page.render(req)
-        self.assertTrue("invalid type" in exc.exception.text)
-        self.assertEquals(exc.exception.code, 400)
-
-    def test_valid(self):
-        req = FakeRequest()
-        req.fields['token'] = FakeField(self.client.token)
-        req.args['t'] = ['json']
-
-        result = self.page.render(req)
-        self.assertTrue(result == NotImplemented)

src/allmydata/web/common.py

@@ -37,7 +37,6 @@ from allmydata.interfaces import (
     SDMF_VERSION,
 )
 from allmydata.mutable.common import UnrecoverableFileError
-from allmydata.util.hashutil import timing_safe_compare
 from allmydata.util.time_format import (
     format_delta,
     format_time,
@@ -426,59 +425,6 @@ class SlotsSequenceElement(template.Element):
             return tag
 
 
-class TokenOnlyWebApi(resource.Resource, object):
-    """
-    I provide a rend.Page implementation that only accepts POST calls,
-    and only if they have a 'token=' arg with the correct
-    authentication token (see
-    :meth:`allmydata.client.Client.get_auth_token`). Callers must also
-    provide the "t=" argument to indicate the return-value (the only
-    valid value for this is "json")
-
-    Subclasses should override 'post_json' which should process the
-    API call and return a string which encodes a valid JSON
-    object. This will only be called if the correct token is present
-    and valid (during renderHTTP processing).
-    """
-
-    def __init__(self, client):
-        self.client = client
-
-    def post_json(self, req):
-        return NotImplemented
-
-    def render(self, req):
-        if req.method != 'POST':
-            raise server.UnsupportedMethod(('POST',))
-        if req.args.get('token', False):
-            raise WebError("Do not pass 'token' as URL argument", http.BAD_REQUEST)
-        # not using get_arg() here because we *don't* want the token
-        # argument to work if you passed it as a GET-style argument
-        token = None
-        if req.fields and 'token' in req.fields:
-            token = req.fields['token'].value.strip()
-        if not token:
-            raise WebError("Missing token", http.UNAUTHORIZED)
-        if not timing_safe_compare(token, self.client.get_auth_token()):
-            raise WebError("Invalid token", http.UNAUTHORIZED)
-
-        t = get_arg(req, "t", "").strip()
-        if not t:
-            raise WebError("Must provide 't=' argument")
-        if t == u'json':
-            try:
-                return self.post_json(req)
-            except WebError as e:
-                req.setResponseCode(e.code)
-                return json.dumps({"error": e.text})
-            except Exception as e:
-                message, code = humanize_exception(e)
-                req.setResponseCode(500 if code is None else code)
-                return json.dumps({"error": message})
-        else:
-            raise WebError("'%s' invalid type for 't' arg" % (t,), http.BAD_REQUEST)
-
-
 def exception_to_child(f):
     """
     Decorate ``getChild`` method with exception handling behavior to render an