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test_awsgi.py
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# -*- coding: utf-8 -*-
from io import BytesIO
import sys
import unittest
try:
# Python 3
from urllib.parse import urlencode
# Convert bytes to str, if required
def convert_str(s):
return s.decode('utf-8') if isinstance(s, bytes) else s
# Convert str to bytes, if required
def convert_byte(b):
return b.encode('utf-8', errors='strict') if (
isinstance(b, str)) else b
except ImportError:
# Python 2
from urllib import urlencode
# No conversion required
def convert_str(s):
return s
# Convert str to bytes, if required
def convert_byte(b):
return b.encode('utf-8', errors='strict') if (
isinstance(b, (str, unicode))) else b
import awsgi
class TestAwsgi(unittest.TestCase):
def compareStringIOContents(self, a, b, msg=None):
if a.getvalue() != b.getvalue():
raise self.failureException(msg)
def test_environ(self):
event = {
'httpMethod': 'TEST',
'path': '/test',
'queryStringParameters': {
'test': '✓',
},
'body': u'test',
'headers': {
'X-test-suite': 'testing',
'Content-type': 'text/plain',
'Host': 'test',
'X-forwarded-for': 'first, second',
'X-forwarded-proto': 'https',
'X-forwarded-port': '12345',
},
}
context = object()
expected = {
'REQUEST_METHOD': event['httpMethod'],
'SCRIPT_NAME': '',
'PATH_INFO': event['path'],
'QUERY_STRING': urlencode(event['queryStringParameters']),
'CONTENT_LENGTH': str(len(event['body'])),
'HTTP': 'on',
'SERVER_PROTOCOL': 'HTTP/1.1',
'wsgi.version': (1, 0),
'wsgi.input': BytesIO(event['body'].encode('utf-8')),
'wsgi.errors': sys.stderr,
'wsgi.multithread': False,
'wsgi.multiprocess': False,
'wsgi.run_once': False,
'CONTENT_TYPE': event['headers']['Content-type'],
'HTTP_CONTENT_TYPE': event['headers']['Content-type'],
'SERVER_NAME': event['headers']['Host'],
'HTTP_HOST': event['headers']['Host'],
'REMOTE_ADDR': event['headers']['X-forwarded-for'].split(', ')[0],
'HTTP_X_FORWARDED_FOR': event['headers']['X-forwarded-for'],
'wsgi.url_scheme': event['headers']['X-forwarded-proto'],
'HTTP_X_FORWARDED_PROTO': event['headers']['X-forwarded-proto'],
'SERVER_PORT': event['headers']['X-forwarded-port'],
'HTTP_X_FORWARDED_PORT': event['headers']['X-forwarded-port'],
'HTTP_X_TEST_SUITE': event['headers']['X-test-suite'],
'awsgi.event': event,
'awsgi.context': context
}
result = awsgi.environ(event, context)
self.addTypeEqualityFunc(BytesIO, self.compareStringIOContents)
for k, v in result.items():
self.assertEqual(v, expected[k])
def test_response_base64_content_type(self):
event = {
"path": "/image.png",
"httpMethod": "GET",
"headers": {
"Accept": "image/webp,image/apng,image/*,*/*;q=0.8",
"X-Forwarded-For": "first, second",
"X-Forwarded-Port": "12345",
"X-Forwarded-Proto": "https",
},
}
context = object()
sr = awsgi.StartResponse(
base64_content_types={"image/png"}
)
sr("200 OK", [("Content-Type", "image/png")])
output = BytesIO(b"\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\xc8")
result = sr.response(output)
self.assertTrue(result["isBase64Encoded"])
self.assertEqual(result["body"], 'iVBORw0KGgoAAAANSUhEUgAAAMg=')
def test_impl_selection_elb(self):
event = {
"requestContext": {
"elb": {
"targetGroupArn": "arn:aws:elasticloadbalancing:us-east-2:0123456789:targetgroup/spam/eggs"
}
},
"httpMethod": "GET",
"path": "/",
"multiValueQueryStringParameters": {},
"multiValueHeaders": {
"user-agent": [
"ELB-HealthChecker/2.0"
]
},
"body": "",
"isBase64Encoded": False
}
context = object()
environ, StartResponse = awsgi.select_impl(event, context)
self.assertIs(environ, awsgi.environ)
self.assertIs(StartResponse, awsgi.StartResponse_ELB)
def test_impl_selection_gw(self):
# From https://docs.aws.amazon.com/lambda/latest/dg/with-on-demand-https.html?shortFooter=true
event = {
"path": "/test/hello",
"headers": {
"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
"Accept-Encoding": "gzip, deflate, lzma, sdch, br",
"Accept-Language": "en-US,en;q=0.8",
"CloudFront-Forwarded-Proto": "https",
"CloudFront-Is-Desktop-Viewer": "true",
"CloudFront-Is-Mobile-Viewer": "false",
"CloudFront-Is-SmartTV-Viewer": "false",
"CloudFront-Is-Tablet-Viewer": "false",
"CloudFront-Viewer-Country": "US",
"Host": "wt6mne2s9k.execute-api.us-west-2.amazonaws.com",
"Upgrade-Insecure-Requests": "1",
"User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.82 Safari/537.36 OPR/39.0.2256.48",
"Via": "1.1 fb7cca60f0ecd82ce07790c9c5eef16c.cloudfront.net (CloudFront)",
"X-Amz-Cf-Id": "nBsWBOrSHMgnaROZJK1wGCZ9PcRcSpq_oSXZNQwQ10OTZL4cimZo3g==",
"X-Forwarded-For": "192.168.100.1, 192.168.1.1",
"X-Forwarded-Port": "443",
"X-Forwarded-Proto": "https"
},
"pathParameters": {
"proxy": "hello"
},
"requestContext": {
"accountId": "123456789012",
"resourceId": "us4z18",
"stage": "test",
"requestId": "41b45ea3-70b5-11e6-b7bd-69b5aaebc7d9",
"identity": {
"cognitoIdentityPoolId": "",
"accountId": "",
"cognitoIdentityId": "",
"caller": "",
"apiKey": "",
"sourceIp": "192.168.100.1",
"cognitoAuthenticationType": "",
"cognitoAuthenticationProvider": "",
"userArn": "",
"userAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.82 Safari/537.36 OPR/39.0.2256.48",
"user": ""
},
"resourcePath": "/{proxy+}",
"httpMethod": "GET",
"apiId": "wt6mne2s9k"
},
"resource": "/{proxy+}",
"httpMethod": "GET",
"queryStringParameters": {
"name": "me"
},
"stageVariables": {
"stageVarName": "stageVarValue"
}
}
context = object()
environ, StartResponse = awsgi.select_impl(event, context)
self.assertIs(environ, awsgi.environ)
self.assertIs(StartResponse, awsgi.StartResponse_GW)