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# Copyright 2020 The Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os.path
import tempfile
from synapse.config import ConfigError
from synapse.util.stringutils import random_string
from tests import unittest
class BaseConfigTestCase(unittest.HomeserverTestCase):
def prepare(self, reactor, clock, hs):
self.hs = hs
def test_loading_missing_templates(self):
# Use a temporary directory that exists on the system, but that isn't likely to
# contain template files
with tempfile.TemporaryDirectory() as tmp_dir:
# Attempt to load an HTML template from our custom template directory
template = self.hs.config.read_templates(["sso_error.html"], (tmp_dir,))[0]
# If no errors, we should've gotten the default template instead
# Render the template
a_random_string = random_string(5)
html_content = template.render({"error_description": a_random_string})
# Check that our string exists in the template
self.assertIn(
a_random_string,
html_content,
"Template file did not contain our test string",
)
def test_loading_custom_templates(self):
# Use a temporary directory that exists on the system
with tempfile.TemporaryDirectory() as tmp_dir:
# Create a temporary bogus template file
with tempfile.NamedTemporaryFile(dir=tmp_dir) as tmp_template:
# Get temporary file's filename
template_filename = os.path.basename(tmp_template.name)
# Write a custom HTML template
contents = b"{{ test_variable }}"
tmp_template.write(contents)
tmp_template.flush()
# Attempt to load the template from our custom template directory
template = (
self.hs.config.read_templates([template_filename], (tmp_dir,))
)[0]
# Render the template
a_random_string = random_string(5)
html_content = template.render({"test_variable": a_random_string})
# Check that our string exists in the template
self.assertIn(
a_random_string,
html_content,
"Template file did not contain our test string",
)
def test_multiple_custom_template_directories(self):
"""Tests that directories are searched in the right order if multiple custom
template directories are provided.
"""
# Create two temporary directories on the filesystem.
tempdirs = [
tempfile.TemporaryDirectory(),
tempfile.TemporaryDirectory(),
]
# Create one template in each directory, whose content is the index of the
# directory in the list.
template_filename = "my_template.html.j2"
for i in range(len(tempdirs)):
tempdir = tempdirs[i]
template_path = os.path.join(tempdir.name, template_filename)
with open(template_path, "w") as fp:
fp.write(str(i))
fp.flush()
# Retrieve the template.
template = (
self.hs.config.read_templates(
[template_filename],
(td.name for td in tempdirs),
)
)[0]
# Test that we got the template we dropped in the first directory in the list.
self.assertEqual(template.render(), "0")
# Add another template, this one only in the second directory in the list, so we
# can test that the second directory is still searched into when no matching file
# could be found in the first one.
other_template_name = "my_other_template.html.j2"
other_template_path = os.path.join(tempdirs[1].name, other_template_name)
with open(other_template_path, "w") as fp:
fp.write("hello world")
fp.flush()
# Retrieve the template.
template = (
self.hs.config.read_templates(
[other_template_name],
(td.name for td in tempdirs),
)
)[0]
# Test that the file has the expected content.
self.assertEqual(template.render(), "hello world")
# Cleanup the temporary directories manually since we're not using a context
# manager.
for td in tempdirs:
td.cleanup()
def test_loading_template_from_nonexistent_custom_directory(self):
with self.assertRaises(ConfigError):
self.hs.config.read_templates(
["some_filename.html"], ("a_nonexistent_directory",)
)
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