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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from cStringIO import StringIO
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from SimpleHTTPServer import SimpleHTTPRequestHandler
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from bzrlib.smart import (
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from bzrlib.tests import http_server
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from bzrlib.transport import chroot
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class HTTPServerWithSmarts(http_server.HttpServer):
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from bzrlib.smart import protocol
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from bzrlib.tests import TestCaseWithTransport
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from bzrlib.tests.HttpServer import (
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TestingHTTPRequestHandler,
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from bzrlib.transport import (
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class WallRequestHandler(TestingHTTPRequestHandler):
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"""Whatever request comes in, close the connection"""
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def handle_one_request(self):
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"""Handle a single HTTP request, by abruptly closing the connection"""
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self.close_connection = 1
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class BadStatusRequestHandler(TestingHTTPRequestHandler):
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"""Whatever request comes in, returns a bad status"""
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def parse_request(self):
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"""Fakes handling a single HTTP request, returns a bad status"""
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ignored = TestingHTTPRequestHandler.parse_request(self)
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self.send_response(0, "Bad status")
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except socket.error, e:
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# We don't want to pollute the test results with
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# spurious server errors while test succeed. In our
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# case, it may occur that the test has already read
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# the 'Bad Status' and closed the socket while we are
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# still trying to send some headers... So the test is
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# ok, but if we raise the exception, the output is
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# dirty. So we don't raise, but we close the
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# connection, just to be safe :)
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spurious = [errno.EPIPE,
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if (len(e.args) > 0) and (e.args[0] in spurious):
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self.close_connection = 1
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class InvalidStatusRequestHandler(TestingHTTPRequestHandler):
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"""Whatever request comes in, returns am invalid status"""
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def parse_request(self):
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"""Fakes handling a single HTTP request, returns a bad status"""
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ignored = TestingHTTPRequestHandler.parse_request(self)
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self.wfile.write("Invalid status line\r\n")
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class BadProtocolRequestHandler(TestingHTTPRequestHandler):
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"""Whatever request comes in, returns a bad protocol version"""
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def parse_request(self):
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"""Fakes handling a single HTTP request, returns a bad status"""
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ignored = TestingHTTPRequestHandler.parse_request(self)
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# Returns an invalid protocol version, but curl just
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# ignores it and those cannot be tested.
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self.wfile.write("%s %d %s\r\n" % ('HTTP/0.0',
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'Look at my protocol version'))
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class ForbiddenRequestHandler(TestingHTTPRequestHandler):
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"""Whatever request comes in, returns a 403 code"""
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def parse_request(self):
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"""Handle a single HTTP request, by replying we cannot handle it"""
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ignored = TestingHTTPRequestHandler.parse_request(self)
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class HTTPServerWithSmarts(HttpServer):
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"""HTTPServerWithSmarts extends the HttpServer with POST methods that will
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trigger a smart server to execute with a transport rooted at the rootdir of
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def __init__(self, protocol_version=None):
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http_server.HttpServer.__init__(self, SmartRequestHandler,
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protocol_version=protocol_version)
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class SmartRequestHandler(http_server.TestingHTTPRequestHandler):
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"""Extend TestingHTTPRequestHandler to support smart client POSTs.
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XXX: This duplicates a fair bit of the logic in bzrlib.transport.http.wsgi.
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HttpServer.__init__(self, SmartRequestHandler)
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class SmartRequestHandler(TestingHTTPRequestHandler):
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"""Extend TestingHTTPRequestHandler to support smart client POSTs."""
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def do_POST(self):
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"""Hand the request off to a smart server instance."""
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backing = transport.get_transport_from_path(
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self.server.test_case_server._home_dir)
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chroot_server = chroot.ChrootServer(backing)
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chroot_server.start_server()
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t = transport.get_transport_from_url(chroot_server.get_url())
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chroot_server.stop_server()
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def do_POST_inner(self, chrooted_transport):
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self.send_response(200)
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self.send_header("Content-type", "application/octet-stream")
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if not self.path.endswith('.bzr/smart'):
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'POST to path not ending in .bzr/smart: %r' % (self.path,))
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t = chrooted_transport.clone(self.path[:-len('.bzr/smart')])
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# if this fails, we should return 400 bad request, but failure is
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# failure for now - RBC 20060919
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data_length = int(self.headers['Content-Length'])
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transport = get_transport(self.server.test_case_server._home_dir)
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# TODO: We might like to support streaming responses. 1.0 allows no
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# Content-length in this case, so for integrity we should perform our
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# own chunking within the stream.
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# the HTTP chunking as this will allow HTTP persistence safely, even if
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# we have to stop early due to error, but we would also have to use the
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# HTTP trailer facility which may not be widely available.
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request_bytes = self.rfile.read(data_length)
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protocol_factory, unused_bytes = medium._get_protocol_factory_for_bytes(
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out_buffer = StringIO()
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smart_protocol_request = protocol_factory(t, out_buffer.write, '/')
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smart_protocol_request = protocol.SmartServerRequestProtocolOne(
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transport, out_buffer.write)
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# if this fails, we should return 400 bad request, but failure is
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# failure for now - RBC 20060919
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data_length = int(self.headers['Content-Length'])
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# Perhaps there should be a SmartServerHTTPMedium that takes care of
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# feeding the bytes in the http request to the smart_protocol_request,
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# but for now it's simpler to just feed the bytes directly.
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smart_protocol_request.accept_bytes(unused_bytes)
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if not (smart_protocol_request.next_read_size() == 0):
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raise errors.SmartProtocolError(
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"not finished reading, but all data sent to protocol.")
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smart_protocol_request.accept_bytes(self.rfile.read(data_length))
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assert smart_protocol_request.next_read_size() == 0, (
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"not finished reading, but all data sent to protocol.")
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self.send_header("Content-Length", str(len(out_buffer.getvalue())))
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self.end_headers()
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self.wfile.write(out_buffer.getvalue())
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class TestCaseWithWebserver(tests.TestCaseWithTransport):
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class LimitedRangeRequestHandler(TestingHTTPRequestHandler):
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"""Errors out when range specifiers exceed the limit"""
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def get_multiple_ranges(self, file, file_size, ranges):
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"""Refuses the multiple ranges request"""
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tcs = self.server.test_case_server
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if tcs.range_limit is not None and len(ranges) > tcs.range_limit:
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# Emulate apache behavior
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self.send_error(400, "Bad Request")
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return TestingHTTPRequestHandler.get_multiple_ranges(self, file,
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class LimitedRangeHTTPServer(HttpServer):
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"""An HttpServer erroring out on requests with too much range specifiers"""
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def __init__(self, request_handler=LimitedRangeRequestHandler,
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HttpServer.__init__(self, request_handler)
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self.range_limit = range_limit
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class SingleRangeRequestHandler(TestingHTTPRequestHandler):
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"""Always reply to range request as if they were single.
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Don't be explicit about it, just to annoy the clients.
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def get_multiple_ranges(self, file, file_size, ranges):
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"""Answer as if it was a single range request and ignores the rest"""
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(start, end) = ranges[0]
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return self.get_single_range(file, file_size, start, end)
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class SingleOnlyRangeRequestHandler(TestingHTTPRequestHandler):
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"""Only reply to simple range requests, errors out on multiple"""
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def get_multiple_ranges(self, file, file_size, ranges):
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"""Refuses the multiple ranges request"""
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self.send_error(416, "Requested range not satisfiable")
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(start, end) = ranges[0]
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return self.get_single_range(file, file_size, start, end)
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class NoRangeRequestHandler(TestingHTTPRequestHandler):
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"""Ignore range requests without notice"""
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# Update the statistics
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self.server.test_case_server.GET_request_nb += 1
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# Just bypass the range handling done by TestingHTTPRequestHandler
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return SimpleHTTPRequestHandler.do_GET(self)
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class TestCaseWithWebserver(TestCaseWithTransport):
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"""A support class that provides readonly urls that are http://.
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This is done by forcing the readonly server to be an http
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one. This will currently fail if the primary transport is not
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backed by regular disk files.
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# These attributes can be overriden or parametrized by daughter clasess if
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# needed, but must exist so that the create_transport_readonly_server()
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# method (or any method creating an http(s) server) can propagate it.
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_protocol_version = None
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_url_protocol = 'http'
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super(TestCaseWithWebserver, self).setUp()
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self.transport_readonly_server = http_server.HttpServer
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def create_transport_readonly_server(self):
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server = self.transport_readonly_server(
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protocol_version=self._protocol_version)
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server._url_protocol = self._url_protocol
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self.transport_readonly_server = HttpServer
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class TestCaseWithTwoWebservers(TestCaseWithWebserver):
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This is mostly a hook for daughter classes.
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server = self.transport_secondary_server(
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protocol_version=self._protocol_version)
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server._url_protocol = self._url_protocol
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return self.transport_secondary_server()
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def get_secondary_server(self):
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"""Get the server instance for the secondary transport."""
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if self.__secondary_server is None:
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self.__secondary_server = self.create_transport_secondary_server()
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self.start_server(self.__secondary_server)
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self.__secondary_server.setUp()
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self.addCleanup(self.__secondary_server.tearDown)
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return self.__secondary_server
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def get_secondary_url(self, relpath=None):
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base = self.get_secondary_server().get_url()
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return self._adjust_url(base, relpath)
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def get_secondary_transport(self, relpath=None):
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t = transport.get_transport_from_url(self.get_secondary_url(relpath))
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self.assertTrue(t.is_readonly())
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class ProxyServer(http_server.HttpServer):
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class ProxyServer(HttpServer):
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"""A proxy test server for http transports."""
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proxy_requests = True
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class RedirectRequestHandler(http_server.TestingHTTPRequestHandler):
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class RedirectRequestHandler(TestingHTTPRequestHandler):
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"""Redirect all request to the specified server"""
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def parse_request(self):
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"""Redirect a single HTTP request to another host"""
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valid = http_server.TestingHTTPRequestHandler.parse_request(self)
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valid = TestingHTTPRequestHandler.parse_request(self)
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tcs = self.server.test_case_server
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code, target = tcs.is_redirected(self.path)
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The 'old' server is redirected to the 'new' server.
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def create_transport_secondary_server(self):
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"""Create the secondary server redirecting to the primary server"""
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new = self.get_readonly_server()
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redirecting = HTTPServerRedirecting()
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redirecting.redirect_to(new.host, new.port)
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super(TestCaseWithRedirectedWebserver, self).setUp()
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# The redirections will point to the new server
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self.new_server = self.get_readonly_server()
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# The requests to the old server will be redirected to the new server
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# The requests to the old server will be redirected
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self.old_server = self.get_secondary_server()
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def create_transport_secondary_server(self):
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"""Create the secondary server redirecting to the primary server"""
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new = self.get_readonly_server()
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redirecting = HTTPServerRedirecting(
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protocol_version=self._protocol_version)
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redirecting.redirect_to(new.host, new.port)
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redirecting._url_protocol = self._url_protocol
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def get_old_url(self, relpath=None):
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base = self.old_server.get_url()
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return self._adjust_url(base, relpath)
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def get_old_transport(self, relpath=None):
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t = transport.get_transport_from_url(self.get_old_url(relpath))
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self.assertTrue(t.is_readonly())
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def get_new_url(self, relpath=None):
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base = self.new_server.get_url()
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return self._adjust_url(base, relpath)
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def get_new_transport(self, relpath=None):
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t = transport.get_transport_from_url(self.get_new_url(relpath))
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self.assertTrue(t.is_readonly())
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class AuthRequestHandler(http_server.TestingHTTPRequestHandler):
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class AuthRequestHandler(TestingHTTPRequestHandler):
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"""Requires an authentication to process requests.
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This is intended to be used with a server that always and
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# - auth_header_recv: the header received containing auth
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# - auth_error_code: the error code to indicate auth required
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def _require_authentication(self):
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# Note that we must update test_case_server *before*
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# sending the error or the client may try to read it
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# before we have sent the whole error back.
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tcs = self.server.test_case_server
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tcs.auth_required_errors += 1
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self.send_response(tcs.auth_error_code)
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self.send_header_auth_reqed()
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# We do not send a body
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self.send_header('Content-Length', '0')
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def do_GET(self):
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if self.authorized():
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return http_server.TestingHTTPRequestHandler.do_GET(self)
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return self._require_authentication()
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if self.authorized():
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return http_server.TestingHTTPRequestHandler.do_HEAD(self)
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return self._require_authentication()
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return TestingHTTPRequestHandler.do_GET(self)
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# Note that we must update test_case_server *before*
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# sending the error or the client may try to read it
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# before we have sent the whole error back.
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tcs = self.server.test_case_server
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tcs.auth_required_errors += 1
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self.send_response(tcs.auth_error_code)
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self.send_header_auth_reqed()
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class BasicAuthRequestHandler(AuthRequestHandler):
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self.send_header(tcs.auth_header_sent,header)
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class DigestAndBasicAuthRequestHandler(DigestAuthRequestHandler):
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"""Implements a digest and basic authentication of a request.
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I.e. the server proposes both schemes and the client should choose the best
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one it can handle, which, in that case, should be digest, the only scheme
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def send_header_auth_reqed(self):
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tcs = self.server.test_case_server
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self.send_header(tcs.auth_header_sent,
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'Basic realm="%s"' % tcs.auth_realm)
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header = 'Digest realm="%s", ' % tcs.auth_realm
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header += 'nonce="%s", algorithm="%s", qop="auth"' % (tcs.auth_nonce,
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self.send_header(tcs.auth_header_sent,header)
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class AuthServer(http_server.HttpServer):
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class AuthServer(HttpServer):
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"""Extends HttpServer with a dictionary of passwords.
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This is used as a base class for various schemes which should
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class HTTPBasicAuthServer(HTTPAuthServer):
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"""An HTTP server requiring basic authentication"""
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def __init__(self, protocol_version=None):
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HTTPAuthServer.__init__(self, BasicAuthRequestHandler, 'basic',
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protocol_version=protocol_version)
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HTTPAuthServer.__init__(self, BasicAuthRequestHandler, 'basic')
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self.init_http_auth()
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class HTTPDigestAuthServer(DigestAuthServer, HTTPAuthServer):
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"""An HTTP server requiring digest authentication"""
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def __init__(self, protocol_version=None):
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DigestAuthServer.__init__(self, DigestAuthRequestHandler, 'digest',
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protocol_version=protocol_version)
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self.init_http_auth()
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class HTTPBasicAndDigestAuthServer(DigestAuthServer, HTTPAuthServer):
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"""An HTTP server requiring basic or digest authentication"""
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def __init__(self, protocol_version=None):
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DigestAuthServer.__init__(self, DigestAndBasicAuthRequestHandler,
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protocol_version=protocol_version)
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self.init_http_auth()
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# We really accept Digest only
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self.auth_scheme = 'digest'
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DigestAuthServer.__init__(self, DigestAuthRequestHandler, 'digest')
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self.init_http_auth()
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class ProxyBasicAuthServer(ProxyAuthServer):
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"""A proxy server requiring basic authentication"""
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def __init__(self, protocol_version=None):
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ProxyAuthServer.__init__(self, BasicAuthRequestHandler, 'basic',
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protocol_version=protocol_version)
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ProxyAuthServer.__init__(self, BasicAuthRequestHandler, 'basic')
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self.init_proxy_auth()
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class ProxyDigestAuthServer(DigestAuthServer, ProxyAuthServer):
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"""A proxy server requiring basic authentication"""
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def __init__(self, protocol_version=None):
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ProxyAuthServer.__init__(self, DigestAuthRequestHandler, 'digest',
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protocol_version=protocol_version)
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self.init_proxy_auth()
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class ProxyBasicAndDigestAuthServer(DigestAuthServer, ProxyAuthServer):
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"""An proxy server requiring basic or digest authentication"""
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def __init__(self, protocol_version=None):
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DigestAuthServer.__init__(self, DigestAndBasicAuthRequestHandler,
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protocol_version=protocol_version)
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self.init_proxy_auth()
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# We really accept Digest only
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self.auth_scheme = 'digest'
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ProxyAuthServer.__init__(self, DigestAuthRequestHandler, 'digest')
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self.init_proxy_auth()