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from BaseHTTPServer import (
HTTPServer,
BaseHTTPRequestHandler,
)
import httplib
import os
from signal import SIGKILL
import simplejson
from StringIO import StringIO
from unittest import TestCase
from urlparse import urlparse
from urlparse import parse_qs
from testtools import ExpectedException
from grackle.client import (
GrackleClient,
UnsupportedOrder,
)
def threaded_messages(messages):
threads = {}
count = 0
pending = []
for message in messages:
if message.get('in_reply_to') is None:
threads[message['message_id']] = [message]
count += 1
else:
pending.append(message)
for message in pending:
threads[message['in_reply_to']].append(message)
return threads.values()
class GrackleStore:
def __init__(self, messages):
self.messages = messages
def get_messages(self, archive_id, query_string):
query = parse_qs(query_string)
parameters = simplejson.loads(query['parameters'][0])
order = parameters.get('order')
messages = self.messages[archive_id]
if order is not None :
if order not in SUPPORTED_ORDERS:
raise UnsupportedOrder
elif order.startswith('thread_'):
threaded = threaded_messages(messages)
messages = []
if order == 'thread_subject':
threaded.sort(key=lambda t: t[0]['subject'])
if order == 'thread_oldest':
threaded.sort(key=lambda t: min(m['date'] for m in t))
if order == 'thread_newest':
threaded.sort(key=lambda t: max(m['date'] for m in t))
for thread in threaded:
messages.extend(thread)
else:
messages.sort(key=lambda m: m[order])
messages = [m for m in messages
if 'message_ids' not in parameters or
m['message_id'] in parameters['message_ids']]
limit = parameters.get('limit', 100)
memo = parameters.get('memo')
message_id_indices = dict(
(m['message_id'], idx) for idx, m in enumerate(messages))
if memo is None:
start = 0
else:
start = message_id_indices[memo.encode('rot13')]
if start > 0:
previous_memo = messages[start - 1]['message_id'].encode('rot13')
else:
previous_memo = None
end = min(start + limit, len(messages))
if end < len(messages):
next_memo = messages[end]['message_id'].encode('rot13')
else:
next_memo = None
messages = messages[start:end]
new_messages = []
for message in messages:
message = dict(message)
if 'headers' in parameters:
headers = dict(
(k, v) for k, v in message['headers'].iteritems()
if k in parameters['headers'])
message['headers'] = headers
max_body = parameters.get('max_body_length')
if max_body is not None:
message['body'] = message['body'][:max_body]
new_messages.append(message)
response = {
'messages': new_messages,
'next_memo': next_memo,
'previous_memo': previous_memo
}
return response
class ForkedFake:
def __init__(self, port, messages=None):
self.pid = None
self.port = port
self.messages = messages
self.read_end, self.write_end = os.pipe()
def is_ready(self):
os.write(self.write_end, 'asdf')
def __enter__(self):
pid = os.fork()
if pid == 0:
self.start_server()
self.pid = pid
os.read(self.read_end, 1)
return
def start_server(self):
service = HTTPServer(('', self.port), FakeGrackleRequestHandler)
service.store = GrackleStore(self.messages)
for archive_id, messages in service.store.messages.iteritems():
for message in messages:
message.setdefault('headers', {})
self.is_ready()
service.serve_forever()
def __exit__(self, exc_type, exc_val, traceback):
os.kill(self.pid, SIGKILL)
SUPPORTED_ORDERS = set(
['date', 'author', 'subject', 'thread_newest', 'thread_oldest',
'thread_subject'])
class FakeGrackleRequestHandler(BaseHTTPRequestHandler):
def do_POST(self):
message = self.rfile.read(int(self.headers['content-length']))
if message == 'This is a message':
self.send_response(httplib.CREATED)
self.end_headers()
self.wfile.close()
else:
self.send_error(httplib.BAD_REQUEST)
def do_GET(self):
scheme, netloc, path, params, query_string, fragments = (
urlparse(self.path))
parts = path.split('/')
if parts[1] == 'archive':
try:
response = self.server.store.get_messages(
parts[2], query_string)
self.send_response(httplib.OK)
self.end_headers()
self.wfile.write(simplejson.dumps(response))
except UnsupportedOrder:
self.send_response(httplib.BAD_REQUEST)
self.wfile.write('Unsupported order')
return
def fake_grackle_service(client, messages=None):
if messages is None:
messages = {}
return ForkedFake(client.port, messages)
class TestPutMessage(TestCase):
def test_put_message(self):
client = GrackleClient('localhost', 8436)
with fake_grackle_service(client):
client.put_message('arch1', 'asdf', StringIO('This is a message'))
with ExpectedException(Exception, 'wtf'):
client.put_message('arch1', 'asdf',
StringIO('This is not a message'))
class TestGetMessages(TestCase):
def assertIDOrder(self, ids, messages):
self.assertEqual(ids, [m['message_id'] for m in messages])
def assertMessageIDs(self, ids, messages):
self.assertIDOrder(
sorted(ids), sorted(messages, key=lambda m:m['message_id']))
def test_get_messages(self):
client = GrackleClient('localhost', 8435)
with fake_grackle_service(client,
{'baz':
[{'message_id': 'foo'},
{'message_id': 'bar'}]}):
response = client.get_messages('baz')
self.assertEqual(['bar', 'foo'], sorted(m['message_id'] for m in
response['messages']))
self.assertIs(None, response['next_memo'])
self.assertIs(None, response['previous_memo'])
def test_get_messages_by_id(self):
client = GrackleClient('localhost', 8437)
with fake_grackle_service(client,
{'baz':
[{'message_id': 'foo'},
{'message_id': 'bar'}]}):
response = client.get_messages('baz', message_ids=['foo'])
message, = response['messages']
self.assertEqual('foo', message['message_id'])
def test_get_messages_batching(self):
client = GrackleClient('localhost', 8438)
with fake_grackle_service(client,
{'baz':
[{'message_id': 'foo'},
{'message_id': 'bar'}]}):
response = client.get_messages('baz', limit=1)
self.assertEqual(1, len(response['messages']))
messages = response['messages']
response = client.get_messages(
'baz', limit=1, memo=response['next_memo'])
self.assertEqual(1, len(response['messages']))
messages.extend(response['messages'])
self.assertMessageIDs(['foo', 'bar'], messages)
def get_messages_member_order_test(self, key):
client = GrackleClient('localhost', 8439)
with fake_grackle_service(client,
{'baz': [{'message_id': 'foo', key: '2011-03-25'},
{'message_id': 'bar', key: '2011-03-24'}]}):
response = client.get_messages('baz')
self.assertIDOrder(['foo', 'bar'], response['messages'])
response = client.get_messages('baz', order=key)
self.assertIDOrder(['bar', 'foo'], response['messages'])
def test_get_messages_date_order(self):
self.get_messages_member_order_test('date')
def test_get_messages_author_order(self):
self.get_messages_member_order_test('author')
def test_get_messages_subject_order(self):
self.get_messages_member_order_test('subject')
def test_get_messages_thread_subject_order(self):
client = GrackleClient('localhost', 8439)
with fake_grackle_service(client, {'baz': [
{'message_id': 'bar', 'subject': 'y'},
{'message_id': 'qux', 'subject': 'z'},
{'message_id': 'foo', 'subject': 'x', 'in_reply_to': 'qux'},
]}):
response = client.get_messages('baz')
self.assertIDOrder(['bar', 'qux', 'foo'], response['messages'])
response = client.get_messages('baz', order='subject')
self.assertIDOrder(['foo', 'bar', 'qux'], response['messages'])
response = client.get_messages('baz', order='thread_subject')
self.assertIDOrder(['bar', 'qux', 'foo'], response['messages'])
def test_get_messages_thread_oldest_order(self):
client = GrackleClient('localhost', 8439)
with fake_grackle_service(client, {'baz': [
{'message_id': 'bar', 'date': 'x'},
{'message_id': 'qux', 'date': 'z'},
{'message_id': 'foo', 'date': 'y', 'in_reply_to': 'qux'},
]}):
response = client.get_messages('baz')
self.assertIDOrder(['bar', 'qux', 'foo'], response['messages'])
response = client.get_messages('baz', order='date')
self.assertIDOrder(['bar', 'foo', 'qux'], response['messages'])
response = client.get_messages('baz', order='thread_oldest')
self.assertIDOrder(['bar', 'qux', 'foo'], response['messages'])
def test_get_messages_thread_newest_order(self):
client = GrackleClient('localhost', 8439)
with fake_grackle_service(client, {'baz': [
{'message_id': 'bar', 'date': 'x'},
{'message_id': 'qux', 'date': 'w'},
{'message_id': 'foo', 'date': 'y', 'in_reply_to': 'bar'},
{'message_id': 'baz', 'date': 'z', 'in_reply_to': 'qux'},
]}):
response = client.get_messages('baz', order='date')
self.assertIDOrder(
['qux', 'bar', 'foo', 'baz'], response['messages'])
response = client.get_messages('baz', order='thread_newest')
self.assertIDOrder(
['bar', 'foo', 'qux', 'baz'], response['messages'])
def test_get_messages_unsupported_order(self):
client = GrackleClient('localhost', 8439)
with fake_grackle_service(client,
{'baz': [{'message_id': 'foo', 'date': '2011-03-25'},
{'message_id': 'bar', 'date': '2011-03-24'}]}):
with ExpectedException(UnsupportedOrder):
client.get_messages('baz', order='nonsense')
def test_get_messages_headers_no_headers(self):
client = GrackleClient('localhost', 8440)
with fake_grackle_service(client,
{'baz': [
{'message_id': 'foo'}
]}):
response = client.get_messages('baz', headers=[
'Subject', 'Date', 'X-Launchpad-Message-Rationale'])
first_message = response['messages'][0]
self.assertEqual('foo', first_message['message_id'])
self.assertEqual({}, first_message['headers'])
def test_get_messages_headers_exclude_headers(self):
client = GrackleClient('localhost', 8440)
with fake_grackle_service(client,
{'baz': [
{'message_id': 'foo', 'headers': {'From': 'me'}}
]}):
response = client.get_messages('baz', headers=[
'Subject', 'Date', 'X-Launchpad-Message-Rationale'])
first_message = response['messages'][0]
self.assertEqual('foo', first_message['message_id'])
self.assertEqual({}, first_message['headers'])
def test_get_messages_headers_include_headers(self):
client = GrackleClient('localhost', 8440)
with fake_grackle_service(client,
{'baz': [
{'message_id': 'foo', 'headers': {'From': 'me', 'To': 'you'}}
]}):
response = client.get_messages('baz', headers=[
'From', 'To'])
first_message = response['messages'][0]
self.assertEqual('foo', first_message['message_id'])
self.assertEqual({'From': 'me', 'To': 'you'}, first_message['headers'])
def test_get_messages_max_body_length(self):
client = GrackleClient('localhost', 8440)
with fake_grackle_service(client,
{'baz': [
{'message_id': 'foo', 'body': u'abcdefghi'}
]}):
response = client.get_messages('baz', max_body_length=3)
first_message = response['messages'][0]
self.assertEqual('abc', first_message['body'])
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