tahoe-lafs/src/allmydata/test/test_client.py
Brian Warner ef1b6ae8e3 Tolerate unknown URI types in directory structures. Part of #683.
The idea is that future versions of Tahoe will add new URI types that this
version won't recognize, but might store them in directories that we *can*
read. We should handle these "objects from the future" as best we can.
Previous releases of Tahoe would just explode. With this change, we'll
continue to be able to work with everything else in the directory.

The code change is to wrap anything we don't recognize as an UnknownNode
instance (as opposed to a FileNode or DirectoryNode). Then webapi knows how
to render these (mostly by leaving fields blank), deep-check knows to skip
over them, deep-stats counts them in "count-unknown". You can rename and
delete these things, but you can't add new ones (because we wouldn't know how
to generate a readcap to put into the dirnode's rocap slot, and because this
lets us catch typos better).
2009-07-02 18:07:49 -07:00

274 lines
11 KiB
Python

import os
from twisted.trial import unittest
from twisted.application import service
from twisted.python import log
import allmydata
from allmydata import client
from allmydata.storage_client import StorageFarmBroker
from allmydata.introducer.client import IntroducerClient
from allmydata.util import base32, fileutil
from allmydata.interfaces import IFilesystemNode, IFileNode, IDirectoryNode
from foolscap.api import flushEventualQueue
import common_util as testutil
class FakeIntroducerClient(IntroducerClient):
def __init__(self):
self._connections = set()
def add_peer(self, nodeid):
entry = (nodeid, "storage", "rref")
self._connections.add(entry)
def remove_all_peers(self):
self._connections.clear()
BASECONFIG = ("[client]\n"
"introducer.furl = \n"
)
class Basic(unittest.TestCase):
def test_loadable(self):
basedir = "test_client.Basic.test_loadable"
os.mkdir(basedir)
open(os.path.join(basedir, "introducer.furl"), "w").write("")
open(os.path.join(basedir, "vdrive.furl"), "w").write("")
c = client.Client(basedir)
def test_loadable_without_vdrive(self):
basedir = "test_client.Basic.test_loadable_without_vdrive"
os.mkdir(basedir)
open(os.path.join(basedir, "introducer.furl"), "w").write("")
c = client.Client(basedir)
def test_loadable_old_config_bits(self):
basedir = "test_client.Basic.test_loadable_old_config_bits"
os.mkdir(basedir)
open(os.path.join(basedir, "introducer.furl"), "w").write("")
open(os.path.join(basedir, "vdrive.furl"), "w").write("")
open(os.path.join(basedir, "no_storage"), "w").write("")
open(os.path.join(basedir, "readonly_storage"), "w").write("")
open(os.path.join(basedir, "debug_discard_storage"), "w").write("")
c = client.Client(basedir)
try:
c.getServiceNamed("storage")
self.fail("that was supposed to fail")
except KeyError:
pass
def test_loadable_old_storage_config_bits(self):
basedir = "test_client.Basic.test_loadable_old_storage_config_bits"
os.mkdir(basedir)
open(os.path.join(basedir, "introducer.furl"), "w").write("")
open(os.path.join(basedir, "vdrive.furl"), "w").write("")
open(os.path.join(basedir, "readonly_storage"), "w").write("")
open(os.path.join(basedir, "debug_discard_storage"), "w").write("")
c = client.Client(basedir)
s = c.getServiceNamed("storage")
self.failUnless(s.no_storage)
self.failUnless(s.readonly_storage)
def test_secrets(self):
basedir = "test_client.Basic.test_secrets"
os.mkdir(basedir)
open(os.path.join(basedir, "introducer.furl"), "w").write("")
open(os.path.join(basedir, "vdrive.furl"), "w").write("")
c = client.Client(basedir)
secret_fname = os.path.join(basedir, "private", "secret")
self.failUnless(os.path.exists(secret_fname), secret_fname)
renew_secret = c.get_renewal_secret()
self.failUnless(base32.b2a(renew_secret))
cancel_secret = c.get_cancel_secret()
self.failUnless(base32.b2a(cancel_secret))
def test_reserved_1(self):
basedir = "client.Basic.test_reserved_1"
os.mkdir(basedir)
f = open(os.path.join(basedir, "tahoe.cfg"), "w")
f.write(BASECONFIG)
f.write("[storage]\n")
f.write("enabled = true\n")
f.write("reserved_space = 1000\n")
f.close()
c = client.Client(basedir)
self.failUnlessEqual(c.getServiceNamed("storage").reserved_space, 1000)
def test_reserved_2(self):
basedir = "client.Basic.test_reserved_2"
os.mkdir(basedir)
f = open(os.path.join(basedir, "tahoe.cfg"), "w")
f.write(BASECONFIG)
f.write("[storage]\n")
f.write("enabled = true\n")
f.write("reserved_space = 10K\n")
f.close()
c = client.Client(basedir)
self.failUnlessEqual(c.getServiceNamed("storage").reserved_space, 10*1000)
def test_reserved_3(self):
basedir = "client.Basic.test_reserved_3"
os.mkdir(basedir)
f = open(os.path.join(basedir, "tahoe.cfg"), "w")
f.write(BASECONFIG)
f.write("[storage]\n")
f.write("enabled = true\n")
f.write("reserved_space = 5mB\n")
f.close()
c = client.Client(basedir)
self.failUnlessEqual(c.getServiceNamed("storage").reserved_space,
5*1000*1000)
def test_reserved_4(self):
basedir = "client.Basic.test_reserved_4"
os.mkdir(basedir)
f = open(os.path.join(basedir, "tahoe.cfg"), "w")
f.write(BASECONFIG)
f.write("[storage]\n")
f.write("enabled = true\n")
f.write("reserved_space = 78Gb\n")
f.close()
c = client.Client(basedir)
self.failUnlessEqual(c.getServiceNamed("storage").reserved_space,
78*1000*1000*1000)
def test_reserved_bad(self):
basedir = "client.Basic.test_reserved_bad"
os.mkdir(basedir)
f = open(os.path.join(basedir, "tahoe.cfg"), "w")
f.write(BASECONFIG)
f.write("[storage]\n")
f.write("enabled = true\n")
f.write("reserved_space = bogus\n")
f.close()
c = client.Client(basedir)
self.failUnlessEqual(c.getServiceNamed("storage").reserved_space, 0)
def _permute(self, sb, key):
return [ peerid
for (peerid,rref) in sb.get_servers_for_index(key) ]
def test_permute(self):
sb = StorageFarmBroker(None, True)
for k in ["%d" % i for i in range(5)]:
sb.test_add_server(k, None)
self.failUnlessEqual(self._permute(sb, "one"), ['3','1','0','4','2'])
self.failUnlessEqual(self._permute(sb, "two"), ['0','4','2','1','3'])
sb.test_servers.clear()
self.failUnlessEqual(self._permute(sb, "one"), [])
def test_versions(self):
basedir = "test_client.Basic.test_versions"
os.mkdir(basedir)
open(os.path.join(basedir, "introducer.furl"), "w").write("")
open(os.path.join(basedir, "vdrive.furl"), "w").write("")
c = client.Client(basedir)
ss = c.getServiceNamed("storage")
verdict = ss.remote_get_version()
self.failUnlessEqual(verdict["application-version"],
str(allmydata.__full_version__))
self.failIfEqual(str(allmydata.__version__), "unknown")
self.failUnless("." in str(allmydata.__full_version__),
"non-numeric version in '%s'" % allmydata.__version__)
all_versions = allmydata.get_package_versions_string()
self.failUnless("allmydata-tahoe" in all_versions)
log.msg("tahoe versions: %s" % all_versions)
# also test stats
stats = c.get_stats()
self.failUnless("node.uptime" in stats)
self.failUnless(isinstance(stats["node.uptime"], float))
def flush_but_dont_ignore(res):
d = flushEventualQueue()
def _done(ignored):
return res
d.addCallback(_done)
return d
class Run(unittest.TestCase, testutil.StallMixin):
def setUp(self):
self.sparent = service.MultiService()
self.sparent.startService()
def tearDown(self):
d = self.sparent.stopService()
d.addBoth(flush_but_dont_ignore)
return d
def test_loadable(self):
basedir = "test_client.Run.test_loadable"
os.mkdir(basedir)
dummy = "pb://wl74cyahejagspqgy4x5ukrvfnevlknt@127.0.0.1:58889/bogus"
open(os.path.join(basedir, "introducer.furl"), "w").write(dummy)
open(os.path.join(basedir, "suicide_prevention_hotline"), "w")
c = client.Client(basedir)
def test_reloadable(self):
basedir = "test_client.Run.test_reloadable"
os.mkdir(basedir)
dummy = "pb://wl74cyahejagspqgy4x5ukrvfnevlknt@127.0.0.1:58889/bogus"
open(os.path.join(basedir, "introducer.furl"), "w").write(dummy)
c1 = client.Client(basedir)
c1.setServiceParent(self.sparent)
# delay to let the service start up completely. I'm not entirely sure
# this is necessary.
d = self.stall(delay=2.0)
d.addCallback(lambda res: c1.disownServiceParent())
# the cygwin buildslave seems to need more time to let the old
# service completely shut down. When delay=0.1, I saw this test fail,
# probably due to the logport trying to reclaim the old socket
# number. This suggests that either we're dropping a Deferred
# somewhere in the shutdown sequence, or that cygwin is just cranky.
d.addCallback(self.stall, delay=2.0)
def _restart(res):
# TODO: pause for slightly over one second, to let
# Client._check_hotline poll the file once. That will exercise
# another few lines. Then add another test in which we don't
# update the file at all, and watch to see the node shutdown. (to
# do this, use a modified node which overrides Node.shutdown(),
# also change _check_hotline to use it instead of a raw
# reactor.stop, also instrument the shutdown event in an
# attribute that we can check)
c2 = client.Client(basedir)
c2.setServiceParent(self.sparent)
return c2.disownServiceParent()
d.addCallback(_restart)
return d
class NodeMaker(unittest.TestCase):
def test_maker(self):
basedir = "client/NodeMaker/maker"
fileutil.make_dirs(basedir)
f = open(os.path.join(basedir, "tahoe.cfg"), "w")
f.write(BASECONFIG)
f.close()
c = client.Client(basedir)
n = c.create_node_from_uri("URI:CHK:6nmrpsubgbe57udnexlkiwzmlu:bjt7j6hshrlmadjyr7otq3dc24end5meo5xcr5xe5r663po6itmq:3:10:7277")
self.failUnless(IFilesystemNode.providedBy(n))
self.failUnless(IFileNode.providedBy(n))
self.failIf(IDirectoryNode.providedBy(n))
self.failUnless(n.is_readonly())
self.failIf(n.is_mutable())
n = c.create_node_from_uri("URI:DIR2:n6x24zd3seu725yluj75q5boaa:mm6yoqjhl6ueh7iereldqxue4nene4wl7rqfjfybqrehdqmqskvq")
self.failUnless(IFilesystemNode.providedBy(n))
self.failIf(IFileNode.providedBy(n))
self.failUnless(IDirectoryNode.providedBy(n))
self.failIf(n.is_readonly())
self.failUnless(n.is_mutable())
n = c.create_node_from_uri("URI:DIR2-RO:b7sr5qsifnicca7cbk3rhrhbvq:mm6yoqjhl6ueh7iereldqxue4nene4wl7rqfjfybqrehdqmqskvq")
self.failUnless(IFilesystemNode.providedBy(n))
self.failIf(IFileNode.providedBy(n))
self.failUnless(IDirectoryNode.providedBy(n))
self.failUnless(n.is_readonly())
self.failUnless(n.is_mutable())
future = "x-tahoe-crazy://future_cap_format."
n = c.create_node_from_uri(future)
self.failUnless(IFilesystemNode.providedBy(n))
self.failIf(IFileNode.providedBy(n))
self.failIf(IDirectoryNode.providedBy(n))
self.failUnlessEqual(n.get_uri(), future)