2 from cStringIO import StringIO
3 from twisted.trial import unittest
4 from twisted.internet import defer, reactor
5 from allmydata import uri, client
6 from allmydata.nodemaker import NodeMaker
7 from allmydata.util import base32, consumer, fileutil, mathutil
8 from allmydata.util.hashutil import tagged_hash, ssk_writekey_hash, \
9 ssk_pubkey_fingerprint_hash
10 from allmydata.util.consumer import MemoryConsumer
11 from allmydata.util.deferredutil import gatherResults
12 from allmydata.interfaces import IRepairResults, ICheckAndRepairResults, \
13 NotEnoughSharesError, SDMF_VERSION, MDMF_VERSION, DownloadStopped
14 from allmydata.monitor import Monitor
15 from allmydata.test.common import ShouldFailMixin
16 from allmydata.test.no_network import GridTestMixin
17 from foolscap.api import eventually, fireEventually
18 from foolscap.logging import log
19 from allmydata.storage_client import StorageFarmBroker
20 from allmydata.storage.common import storage_index_to_dir
21 from allmydata.scripts import debug
23 from allmydata.mutable.filenode import MutableFileNode, BackoffAgent
24 from allmydata.mutable.common import \
25 MODE_CHECK, MODE_ANYTHING, MODE_WRITE, MODE_READ, \
26 NeedMoreDataError, UnrecoverableFileError, UncoordinatedWriteError, \
27 NotEnoughServersError, CorruptShareError
28 from allmydata.mutable.retrieve import Retrieve
29 from allmydata.mutable.publish import Publish, MutableFileHandle, \
31 DEFAULT_MAX_SEGMENT_SIZE
32 from allmydata.mutable.servermap import ServerMap, ServermapUpdater
33 from allmydata.mutable.layout import unpack_header, MDMFSlotReadProxy
34 from allmydata.mutable.repairer import MustForceRepairError
36 import allmydata.test.common_util as testutil
37 from allmydata.test.common import TEST_RSA_KEY_SIZE
38 from allmydata.test.test_download import PausingConsumer, \
39 PausingAndStoppingConsumer, StoppingConsumer, \
40 ImmediatelyStoppingConsumer
42 def eventuaaaaaly(res=None):
43 d = fireEventually(res)
44 d.addCallback(fireEventually)
45 d.addCallback(fireEventually)
49 # this "FakeStorage" exists to put the share data in RAM and avoid using real
50 # network connections, both to speed up the tests and to reduce the amount of
51 # non-mutable.py code being exercised.
54 # this class replaces the collection of storage servers, allowing the
55 # tests to examine and manipulate the published shares. It also lets us
56 # control the order in which read queries are answered, to exercise more
57 # of the error-handling code in Retrieve .
59 # Note that we ignore the storage index: this FakeStorage instance can
60 # only be used for a single storage index.
65 # _sequence is used to cause the responses to occur in a specific
66 # order. If it is in use, then we will defer queries instead of
67 # answering them right away, accumulating the Deferreds in a dict. We
68 # don't know exactly how many queries we'll get, so exactly one
69 # second after the first query arrives, we will release them all (in
73 self._pending_timer = None
75 def read(self, peerid, storage_index):
76 shares = self._peers.get(peerid, {})
77 if self._sequence is None:
78 return eventuaaaaaly(shares)
81 self._pending_timer = reactor.callLater(1.0, self._fire_readers)
82 if peerid not in self._pending:
83 self._pending[peerid] = []
84 self._pending[peerid].append( (d, shares) )
87 def _fire_readers(self):
88 self._pending_timer = None
89 pending = self._pending
91 for peerid in self._sequence:
93 for (d, shares) in pending.pop(peerid):
94 eventually(d.callback, shares)
95 for peerid in pending:
96 for (d, shares) in pending[peerid]:
97 eventually(d.callback, shares)
99 def write(self, peerid, storage_index, shnum, offset, data):
100 if peerid not in self._peers:
101 self._peers[peerid] = {}
102 shares = self._peers[peerid]
104 f.write(shares.get(shnum, ""))
107 shares[shnum] = f.getvalue()
110 class FakeStorageServer:
111 def __init__(self, peerid, storage):
113 self.storage = storage
115 def callRemote(self, methname, *args, **kwargs):
118 meth = getattr(self, methname)
119 return meth(*args, **kwargs)
121 d.addCallback(lambda res: _call())
124 def callRemoteOnly(self, methname, *args, **kwargs):
126 d = self.callRemote(methname, *args, **kwargs)
127 d.addBoth(lambda ignore: None)
130 def advise_corrupt_share(self, share_type, storage_index, shnum, reason):
133 def slot_readv(self, storage_index, shnums, readv):
134 d = self.storage.read(self.peerid, storage_index)
138 if shnums and shnum not in shnums:
140 vector = response[shnum] = []
141 for (offset, length) in readv:
142 assert isinstance(offset, (int, long)), offset
143 assert isinstance(length, (int, long)), length
144 vector.append(shares[shnum][offset:offset+length])
149 def slot_testv_and_readv_and_writev(self, storage_index, secrets,
150 tw_vectors, read_vector):
151 # always-pass: parrot the test vectors back to them.
153 for shnum, (testv, writev, new_length) in tw_vectors.items():
154 for (offset, length, op, specimen) in testv:
155 assert op in ("le", "eq", "ge")
156 # TODO: this isn't right, the read is controlled by read_vector,
158 readv[shnum] = [ specimen
159 for (offset, length, op, specimen)
161 for (offset, data) in writev:
162 self.storage.write(self.peerid, storage_index, shnum,
164 answer = (True, readv)
165 return fireEventually(answer)
168 def flip_bit(original, byte_offset):
169 return (original[:byte_offset] +
170 chr(ord(original[byte_offset]) ^ 0x01) +
171 original[byte_offset+1:])
173 def add_two(original, byte_offset):
174 # It isn't enough to simply flip the bit for the version number,
175 # because 1 is a valid version number. So we add two instead.
176 return (original[:byte_offset] +
177 chr(ord(original[byte_offset]) ^ 0x02) +
178 original[byte_offset+1:])
180 def corrupt(res, s, offset, shnums_to_corrupt=None, offset_offset=0):
181 # if shnums_to_corrupt is None, corrupt all shares. Otherwise it is a
182 # list of shnums to corrupt.
184 for peerid in s._peers:
185 shares = s._peers[peerid]
187 if (shnums_to_corrupt is not None
188 and shnum not in shnums_to_corrupt):
191 # We're feeding the reader all of the share data, so it
192 # won't need to use the rref that we didn't provide, nor the
193 # storage index that we didn't provide. We do this because
194 # the reader will work for both MDMF and SDMF.
195 reader = MDMFSlotReadProxy(None, None, shnum, data)
196 # We need to get the offsets for the next part.
197 d = reader.get_verinfo()
198 def _do_corruption(verinfo, data, shnum, shares):
204 k, n, prefix, o) = verinfo
205 if isinstance(offset, tuple):
206 offset1, offset2 = offset
210 if offset1 == "pubkey" and IV:
213 real_offset = o[offset1]
215 real_offset = offset1
216 real_offset = int(real_offset) + offset2 + offset_offset
217 assert isinstance(real_offset, int), offset
218 if offset1 == 0: # verbyte
222 shares[shnum] = f(data, real_offset)
223 d.addCallback(_do_corruption, data, shnum, shares)
225 dl = defer.DeferredList(ds)
226 dl.addCallback(lambda ignored: res)
229 def make_storagebroker(s=None, num_peers=10):
232 peerids = [tagged_hash("peerid", "%d" % i)[:20]
233 for i in range(num_peers)]
234 storage_broker = StorageFarmBroker(None, True)
235 for peerid in peerids:
236 fss = FakeStorageServer(peerid, s)
237 ann = {"anonymous-storage-FURL": "pb://%s@nowhere/fake" % base32.b2a(peerid),
238 "permutation-seed-base32": base32.b2a(peerid) }
239 storage_broker.test_add_rref(peerid, fss, ann)
240 return storage_broker
242 def make_nodemaker(s=None, num_peers=10, keysize=TEST_RSA_KEY_SIZE):
243 storage_broker = make_storagebroker(s, num_peers)
244 sh = client.SecretHolder("lease secret", "convergence secret")
245 keygen = client.KeyGenerator()
247 keygen.set_default_keysize(keysize)
248 nodemaker = NodeMaker(storage_broker, sh, None,
250 {"k": 3, "n": 10}, SDMF_VERSION, keygen)
253 class Filenode(unittest.TestCase, testutil.ShouldFailMixin):
254 # this used to be in Publish, but we removed the limit. Some of
255 # these tests test whether the new code correctly allows files
256 # larger than the limit.
257 OLD_MAX_SEGMENT_SIZE = 3500000
259 self._storage = s = FakeStorage()
260 self.nodemaker = make_nodemaker(s)
262 def test_create(self):
263 d = self.nodemaker.create_mutable_file()
265 self.failUnless(isinstance(n, MutableFileNode))
266 self.failUnlessEqual(n.get_storage_index(), n._storage_index)
267 sb = self.nodemaker.storage_broker
268 peer0 = sorted(sb.get_all_serverids())[0]
269 shnums = self._storage._peers[peer0].keys()
270 self.failUnlessEqual(len(shnums), 1)
271 d.addCallback(_created)
275 def test_create_mdmf(self):
276 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
278 self.failUnless(isinstance(n, MutableFileNode))
279 self.failUnlessEqual(n.get_storage_index(), n._storage_index)
280 sb = self.nodemaker.storage_broker
281 peer0 = sorted(sb.get_all_serverids())[0]
282 shnums = self._storage._peers[peer0].keys()
283 self.failUnlessEqual(len(shnums), 1)
284 d.addCallback(_created)
287 def test_single_share(self):
288 # Make sure that we tolerate publishing a single share.
289 self.nodemaker.default_encoding_parameters['k'] = 1
290 self.nodemaker.default_encoding_parameters['happy'] = 1
291 self.nodemaker.default_encoding_parameters['n'] = 1
292 d = defer.succeed(None)
293 for v in (SDMF_VERSION, MDMF_VERSION):
294 d.addCallback(lambda ignored, v=v:
295 self.nodemaker.create_mutable_file(version=v))
297 self.failUnless(isinstance(n, MutableFileNode))
300 d.addCallback(_created)
301 d.addCallback(lambda n:
302 n.overwrite(MutableData("Contents" * 50000)))
303 d.addCallback(lambda ignored:
304 self._node.download_best_version())
305 d.addCallback(lambda contents:
306 self.failUnlessEqual(contents, "Contents" * 50000))
309 def test_max_shares(self):
310 self.nodemaker.default_encoding_parameters['n'] = 255
311 d = self.nodemaker.create_mutable_file(version=SDMF_VERSION)
313 self.failUnless(isinstance(n, MutableFileNode))
314 self.failUnlessEqual(n.get_storage_index(), n._storage_index)
315 sb = self.nodemaker.storage_broker
316 num_shares = sum([len(self._storage._peers[x].keys()) for x \
317 in sb.get_all_serverids()])
318 self.failUnlessEqual(num_shares, 255)
321 d.addCallback(_created)
322 # Now we upload some contents
323 d.addCallback(lambda n:
324 n.overwrite(MutableData("contents" * 50000)))
325 # ...then download contents
326 d.addCallback(lambda ignored:
327 self._node.download_best_version())
328 # ...and check to make sure everything went okay.
329 d.addCallback(lambda contents:
330 self.failUnlessEqual("contents" * 50000, contents))
333 def test_max_shares_mdmf(self):
334 # Test how files behave when there are 255 shares.
335 self.nodemaker.default_encoding_parameters['n'] = 255
336 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
338 self.failUnless(isinstance(n, MutableFileNode))
339 self.failUnlessEqual(n.get_storage_index(), n._storage_index)
340 sb = self.nodemaker.storage_broker
341 num_shares = sum([len(self._storage._peers[x].keys()) for x \
342 in sb.get_all_serverids()])
343 self.failUnlessEqual(num_shares, 255)
346 d.addCallback(_created)
347 d.addCallback(lambda n:
348 n.overwrite(MutableData("contents" * 50000)))
349 d.addCallback(lambda ignored:
350 self._node.download_best_version())
351 d.addCallback(lambda contents:
352 self.failUnlessEqual(contents, "contents" * 50000))
355 def test_mdmf_filenode_cap(self):
356 # Test that an MDMF filenode, once created, returns an MDMF URI.
357 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
359 self.failUnless(isinstance(n, MutableFileNode))
361 self.failUnless(isinstance(cap, uri.WriteableMDMFFileURI))
362 rcap = n.get_readcap()
363 self.failUnless(isinstance(rcap, uri.ReadonlyMDMFFileURI))
364 vcap = n.get_verify_cap()
365 self.failUnless(isinstance(vcap, uri.MDMFVerifierURI))
366 d.addCallback(_created)
370 def test_create_from_mdmf_writecap(self):
371 # Test that the nodemaker is capable of creating an MDMF
372 # filenode given an MDMF cap.
373 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
375 self.failUnless(isinstance(n, MutableFileNode))
377 self.failUnless(s.startswith("URI:MDMF"))
378 n2 = self.nodemaker.create_from_cap(s)
379 self.failUnless(isinstance(n2, MutableFileNode))
380 self.failUnlessEqual(n.get_storage_index(), n2.get_storage_index())
381 self.failUnlessEqual(n.get_uri(), n2.get_uri())
382 d.addCallback(_created)
386 def test_create_from_mdmf_readcap(self):
387 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
389 self.failUnless(isinstance(n, MutableFileNode))
390 s = n.get_readonly_uri()
391 n2 = self.nodemaker.create_from_cap(s)
392 self.failUnless(isinstance(n2, MutableFileNode))
394 # Check that it's a readonly node
395 self.failUnless(n2.is_readonly())
396 d.addCallback(_created)
400 def test_internal_version_from_cap(self):
401 # MutableFileNodes and MutableFileVersions have an internal
402 # switch that tells them whether they're dealing with an SDMF or
403 # MDMF mutable file when they start doing stuff. We want to make
404 # sure that this is set appropriately given an MDMF cap.
405 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
407 self.uri = n.get_uri()
408 self.failUnlessEqual(n._protocol_version, MDMF_VERSION)
410 n2 = self.nodemaker.create_from_cap(self.uri)
411 self.failUnlessEqual(n2._protocol_version, MDMF_VERSION)
412 d.addCallback(_created)
416 def test_serialize(self):
417 n = MutableFileNode(None, None, {"k": 3, "n": 10}, None)
419 def _callback(*args, **kwargs):
420 self.failUnlessEqual(args, (4,) )
421 self.failUnlessEqual(kwargs, {"foo": 5})
424 d = n._do_serialized(_callback, 4, foo=5)
425 def _check_callback(res):
426 self.failUnlessEqual(res, 6)
427 self.failUnlessEqual(calls, [1])
428 d.addCallback(_check_callback)
431 raise ValueError("heya")
432 d.addCallback(lambda res:
433 self.shouldFail(ValueError, "_check_errback", "heya",
434 n._do_serialized, _errback))
437 def test_upload_and_download(self):
438 d = self.nodemaker.create_mutable_file()
440 d = defer.succeed(None)
441 d.addCallback(lambda res: n.get_servermap(MODE_READ))
442 d.addCallback(lambda smap: smap.dump(StringIO()))
443 d.addCallback(lambda sio:
444 self.failUnless("3-of-10" in sio.getvalue()))
445 d.addCallback(lambda res: n.overwrite(MutableData("contents 1")))
446 d.addCallback(lambda res: self.failUnlessIdentical(res, None))
447 d.addCallback(lambda res: n.download_best_version())
448 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 1"))
449 d.addCallback(lambda res: n.get_size_of_best_version())
450 d.addCallback(lambda size:
451 self.failUnlessEqual(size, len("contents 1")))
452 d.addCallback(lambda res: n.overwrite(MutableData("contents 2")))
453 d.addCallback(lambda res: n.download_best_version())
454 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 2"))
455 d.addCallback(lambda res: n.get_servermap(MODE_WRITE))
456 d.addCallback(lambda smap: n.upload(MutableData("contents 3"), smap))
457 d.addCallback(lambda res: n.download_best_version())
458 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 3"))
459 d.addCallback(lambda res: n.get_servermap(MODE_ANYTHING))
460 d.addCallback(lambda smap:
461 n.download_version(smap,
462 smap.best_recoverable_version()))
463 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 3"))
464 # test a file that is large enough to overcome the
465 # mapupdate-to-retrieve data caching (i.e. make the shares larger
466 # than the default readsize, which is 2000 bytes). A 15kB file
467 # will have 5kB shares.
468 d.addCallback(lambda res: n.overwrite(MutableData("large size file" * 1000)))
469 d.addCallback(lambda res: n.download_best_version())
470 d.addCallback(lambda res:
471 self.failUnlessEqual(res, "large size file" * 1000))
473 d.addCallback(_created)
477 def test_upload_and_download_mdmf(self):
478 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
480 d = defer.succeed(None)
481 d.addCallback(lambda ignored:
482 n.get_servermap(MODE_READ))
483 def _then(servermap):
484 dumped = servermap.dump(StringIO())
485 self.failUnlessIn("3-of-10", dumped.getvalue())
487 # Now overwrite the contents with some new contents. We want
488 # to make them big enough to force the file to be uploaded
489 # in more than one segment.
490 big_contents = "contents1" * 100000 # about 900 KiB
491 big_contents_uploadable = MutableData(big_contents)
492 d.addCallback(lambda ignored:
493 n.overwrite(big_contents_uploadable))
494 d.addCallback(lambda ignored:
495 n.download_best_version())
496 d.addCallback(lambda data:
497 self.failUnlessEqual(data, big_contents))
498 # Overwrite the contents again with some new contents. As
499 # before, they need to be big enough to force multiple
500 # segments, so that we make the downloader deal with
502 bigger_contents = "contents2" * 1000000 # about 9MiB
503 bigger_contents_uploadable = MutableData(bigger_contents)
504 d.addCallback(lambda ignored:
505 n.overwrite(bigger_contents_uploadable))
506 d.addCallback(lambda ignored:
507 n.download_best_version())
508 d.addCallback(lambda data:
509 self.failUnlessEqual(data, bigger_contents))
511 d.addCallback(_created)
515 def test_retrieve_producer_mdmf(self):
516 # We should make sure that the retriever is able to pause and stop
518 data = "contents1" * 100000
519 d = self.nodemaker.create_mutable_file(MutableData(data),
520 version=MDMF_VERSION)
521 d.addCallback(lambda node: node.get_best_mutable_version())
522 d.addCallback(self._test_retrieve_producer, "MDMF", data)
525 # note: SDMF has only one big segment, so we can't use the usual
526 # after-the-first-write() trick to pause or stop the download.
527 # Disabled until we find a better approach.
528 def OFF_test_retrieve_producer_sdmf(self):
529 data = "contents1" * 100000
530 d = self.nodemaker.create_mutable_file(MutableData(data),
531 version=SDMF_VERSION)
532 d.addCallback(lambda node: node.get_best_mutable_version())
533 d.addCallback(self._test_retrieve_producer, "SDMF", data)
536 def _test_retrieve_producer(self, version, kind, data):
537 # Now we'll retrieve it into a pausing consumer.
538 c = PausingConsumer()
540 d.addCallback(lambda ign: self.failUnlessEqual(c.size, len(data)))
542 c2 = PausingAndStoppingConsumer()
543 d.addCallback(lambda ign:
544 self.shouldFail(DownloadStopped, kind+"_pause_stop",
545 "our Consumer called stopProducing()",
548 c3 = StoppingConsumer()
549 d.addCallback(lambda ign:
550 self.shouldFail(DownloadStopped, kind+"_stop",
551 "our Consumer called stopProducing()",
554 c4 = ImmediatelyStoppingConsumer()
555 d.addCallback(lambda ign:
556 self.shouldFail(DownloadStopped, kind+"_stop_imm",
557 "our Consumer called stopProducing()",
561 c5 = MemoryConsumer()
562 d1 = version.read(c5)
563 c5.producer.stopProducing()
564 return self.shouldFail(DownloadStopped, kind+"_stop_imm2",
565 "our Consumer called stopProducing()",
570 def test_download_from_mdmf_cap(self):
571 # We should be able to download an MDMF file given its cap
572 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
574 self.uri = node.get_uri()
575 # also confirm that the cap has no extension fields
576 pieces = self.uri.split(":")
577 self.failUnlessEqual(len(pieces), 4)
579 return node.overwrite(MutableData("contents1" * 100000))
581 node = self.nodemaker.create_from_cap(self.uri)
582 return node.download_best_version()
583 def _downloaded(data):
584 self.failUnlessEqual(data, "contents1" * 100000)
585 d.addCallback(_created)
587 d.addCallback(_downloaded)
591 def test_mdmf_write_count(self):
592 # Publishing an MDMF file should only cause one write for each
593 # share that is to be published. Otherwise, we introduce
594 # undesirable semantics that are a regression from SDMF
595 upload = MutableData("MDMF" * 100000) # about 400 KiB
596 d = self.nodemaker.create_mutable_file(upload,
597 version=MDMF_VERSION)
598 def _check_server_write_counts(ignored):
599 sb = self.nodemaker.storage_broker
600 for server in sb.servers.itervalues():
601 self.failUnlessEqual(server.get_rref().queries, 1)
602 d.addCallback(_check_server_write_counts)
606 def test_create_with_initial_contents(self):
607 upload1 = MutableData("contents 1")
608 d = self.nodemaker.create_mutable_file(upload1)
610 d = n.download_best_version()
611 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 1"))
612 upload2 = MutableData("contents 2")
613 d.addCallback(lambda res: n.overwrite(upload2))
614 d.addCallback(lambda res: n.download_best_version())
615 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 2"))
617 d.addCallback(_created)
621 def test_create_mdmf_with_initial_contents(self):
622 initial_contents = "foobarbaz" * 131072 # 900KiB
623 initial_contents_uploadable = MutableData(initial_contents)
624 d = self.nodemaker.create_mutable_file(initial_contents_uploadable,
625 version=MDMF_VERSION)
627 d = n.download_best_version()
628 d.addCallback(lambda data:
629 self.failUnlessEqual(data, initial_contents))
630 uploadable2 = MutableData(initial_contents + "foobarbaz")
631 d.addCallback(lambda ignored:
632 n.overwrite(uploadable2))
633 d.addCallback(lambda ignored:
634 n.download_best_version())
635 d.addCallback(lambda data:
636 self.failUnlessEqual(data, initial_contents +
639 d.addCallback(_created)
642 def test_create_with_initial_contents_function(self):
643 data = "initial contents"
644 def _make_contents(n):
645 self.failUnless(isinstance(n, MutableFileNode))
646 key = n.get_writekey()
647 self.failUnless(isinstance(key, str), key)
648 self.failUnlessEqual(len(key), 16) # AES key size
649 return MutableData(data)
650 d = self.nodemaker.create_mutable_file(_make_contents)
652 return n.download_best_version()
653 d.addCallback(_created)
654 d.addCallback(lambda data2: self.failUnlessEqual(data2, data))
658 def test_create_mdmf_with_initial_contents_function(self):
659 data = "initial contents" * 100000
660 def _make_contents(n):
661 self.failUnless(isinstance(n, MutableFileNode))
662 key = n.get_writekey()
663 self.failUnless(isinstance(key, str), key)
664 self.failUnlessEqual(len(key), 16)
665 return MutableData(data)
666 d = self.nodemaker.create_mutable_file(_make_contents,
667 version=MDMF_VERSION)
668 d.addCallback(lambda n:
669 n.download_best_version())
670 d.addCallback(lambda data2:
671 self.failUnlessEqual(data2, data))
675 def test_create_with_too_large_contents(self):
676 BIG = "a" * (self.OLD_MAX_SEGMENT_SIZE + 1)
677 BIG_uploadable = MutableData(BIG)
678 d = self.nodemaker.create_mutable_file(BIG_uploadable)
680 other_BIG_uploadable = MutableData(BIG)
681 d = n.overwrite(other_BIG_uploadable)
683 d.addCallback(_created)
686 def failUnlessCurrentSeqnumIs(self, n, expected_seqnum, which):
687 d = n.get_servermap(MODE_READ)
688 d.addCallback(lambda servermap: servermap.best_recoverable_version())
689 d.addCallback(lambda verinfo:
690 self.failUnlessEqual(verinfo[0], expected_seqnum, which))
693 def test_modify(self):
694 def _modifier(old_contents, servermap, first_time):
695 new_contents = old_contents + "line2"
697 def _non_modifier(old_contents, servermap, first_time):
699 def _none_modifier(old_contents, servermap, first_time):
701 def _error_modifier(old_contents, servermap, first_time):
702 raise ValueError("oops")
703 def _toobig_modifier(old_contents, servermap, first_time):
704 new_content = "b" * (self.OLD_MAX_SEGMENT_SIZE + 1)
707 def _ucw_error_modifier(old_contents, servermap, first_time):
708 # simulate an UncoordinatedWriteError once
711 raise UncoordinatedWriteError("simulated")
712 new_contents = old_contents + "line3"
714 def _ucw_error_non_modifier(old_contents, servermap, first_time):
715 # simulate an UncoordinatedWriteError once, and don't actually
716 # modify the contents on subsequent invocations
719 raise UncoordinatedWriteError("simulated")
722 initial_contents = "line1"
723 d = self.nodemaker.create_mutable_file(MutableData(initial_contents))
725 d = n.modify(_modifier)
726 d.addCallback(lambda res: n.download_best_version())
727 d.addCallback(lambda res: self.failUnlessEqual(res, "line1line2"))
728 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 2, "m"))
730 d.addCallback(lambda res: n.modify(_non_modifier))
731 d.addCallback(lambda res: n.download_best_version())
732 d.addCallback(lambda res: self.failUnlessEqual(res, "line1line2"))
733 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 2, "non"))
735 d.addCallback(lambda res: n.modify(_none_modifier))
736 d.addCallback(lambda res: n.download_best_version())
737 d.addCallback(lambda res: self.failUnlessEqual(res, "line1line2"))
738 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 2, "none"))
740 d.addCallback(lambda res:
741 self.shouldFail(ValueError, "error_modifier", None,
742 n.modify, _error_modifier))
743 d.addCallback(lambda res: n.download_best_version())
744 d.addCallback(lambda res: self.failUnlessEqual(res, "line1line2"))
745 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 2, "err"))
748 d.addCallback(lambda res: n.download_best_version())
749 d.addCallback(lambda res: self.failUnlessEqual(res, "line1line2"))
750 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 2, "big"))
752 d.addCallback(lambda res: n.modify(_ucw_error_modifier))
753 d.addCallback(lambda res: self.failUnlessEqual(len(calls), 2))
754 d.addCallback(lambda res: n.download_best_version())
755 d.addCallback(lambda res: self.failUnlessEqual(res,
757 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 3, "ucw"))
759 def _reset_ucw_error_modifier(res):
762 d.addCallback(_reset_ucw_error_modifier)
764 # in practice, this n.modify call should publish twice: the first
765 # one gets a UCWE, the second does not. But our test jig (in
766 # which the modifier raises the UCWE) skips over the first one,
767 # so in this test there will be only one publish, and the seqnum
768 # will only be one larger than the previous test, not two (i.e. 4
770 d.addCallback(lambda res: n.modify(_ucw_error_non_modifier))
771 d.addCallback(lambda res: self.failUnlessEqual(len(calls), 2))
772 d.addCallback(lambda res: n.download_best_version())
773 d.addCallback(lambda res: self.failUnlessEqual(res,
775 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 4, "ucw"))
776 d.addCallback(lambda res: n.modify(_toobig_modifier))
778 d.addCallback(_created)
782 def test_modify_backoffer(self):
783 def _modifier(old_contents, servermap, first_time):
784 return old_contents + "line2"
786 def _ucw_error_modifier(old_contents, servermap, first_time):
787 # simulate an UncoordinatedWriteError once
790 raise UncoordinatedWriteError("simulated")
791 return old_contents + "line3"
792 def _always_ucw_error_modifier(old_contents, servermap, first_time):
793 raise UncoordinatedWriteError("simulated")
794 def _backoff_stopper(node, f):
796 def _backoff_pauser(node, f):
798 reactor.callLater(0.5, d.callback, None)
801 # the give-up-er will hit its maximum retry count quickly
802 giveuper = BackoffAgent()
803 giveuper._delay = 0.1
806 d = self.nodemaker.create_mutable_file(MutableData("line1"))
808 d = n.modify(_modifier)
809 d.addCallback(lambda res: n.download_best_version())
810 d.addCallback(lambda res: self.failUnlessEqual(res, "line1line2"))
811 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 2, "m"))
813 d.addCallback(lambda res:
814 self.shouldFail(UncoordinatedWriteError,
815 "_backoff_stopper", None,
816 n.modify, _ucw_error_modifier,
818 d.addCallback(lambda res: n.download_best_version())
819 d.addCallback(lambda res: self.failUnlessEqual(res, "line1line2"))
820 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 2, "stop"))
822 def _reset_ucw_error_modifier(res):
825 d.addCallback(_reset_ucw_error_modifier)
826 d.addCallback(lambda res: n.modify(_ucw_error_modifier,
828 d.addCallback(lambda res: n.download_best_version())
829 d.addCallback(lambda res: self.failUnlessEqual(res,
831 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 3, "pause"))
833 d.addCallback(lambda res:
834 self.shouldFail(UncoordinatedWriteError,
836 n.modify, _always_ucw_error_modifier,
838 d.addCallback(lambda res: n.download_best_version())
839 d.addCallback(lambda res: self.failUnlessEqual(res,
841 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 3, "giveup"))
844 d.addCallback(_created)
847 def test_upload_and_download_full_size_keys(self):
848 self.nodemaker.key_generator = client.KeyGenerator()
849 d = self.nodemaker.create_mutable_file()
851 d = defer.succeed(None)
852 d.addCallback(lambda res: n.get_servermap(MODE_READ))
853 d.addCallback(lambda smap: smap.dump(StringIO()))
854 d.addCallback(lambda sio:
855 self.failUnless("3-of-10" in sio.getvalue()))
856 d.addCallback(lambda res: n.overwrite(MutableData("contents 1")))
857 d.addCallback(lambda res: self.failUnlessIdentical(res, None))
858 d.addCallback(lambda res: n.download_best_version())
859 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 1"))
860 d.addCallback(lambda res: n.overwrite(MutableData("contents 2")))
861 d.addCallback(lambda res: n.download_best_version())
862 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 2"))
863 d.addCallback(lambda res: n.get_servermap(MODE_WRITE))
864 d.addCallback(lambda smap: n.upload(MutableData("contents 3"), smap))
865 d.addCallback(lambda res: n.download_best_version())
866 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 3"))
867 d.addCallback(lambda res: n.get_servermap(MODE_ANYTHING))
868 d.addCallback(lambda smap:
869 n.download_version(smap,
870 smap.best_recoverable_version()))
871 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 3"))
873 d.addCallback(_created)
877 def test_size_after_servermap_update(self):
878 # a mutable file node should have something to say about how big
879 # it is after a servermap update is performed, since this tells
880 # us how large the best version of that mutable file is.
881 d = self.nodemaker.create_mutable_file()
884 return n.get_servermap(MODE_READ)
885 d.addCallback(_created)
886 d.addCallback(lambda ignored:
887 self.failUnlessEqual(self.n.get_size(), 0))
888 d.addCallback(lambda ignored:
889 self.n.overwrite(MutableData("foobarbaz")))
890 d.addCallback(lambda ignored:
891 self.failUnlessEqual(self.n.get_size(), 9))
892 d.addCallback(lambda ignored:
893 self.nodemaker.create_mutable_file(MutableData("foobarbaz")))
894 d.addCallback(_created)
895 d.addCallback(lambda ignored:
896 self.failUnlessEqual(self.n.get_size(), 9))
901 def publish_one(self):
902 # publish a file and create shares, which can then be manipulated
904 self.CONTENTS = "New contents go here" * 1000
905 self.uploadable = MutableData(self.CONTENTS)
906 self._storage = FakeStorage()
907 self._nodemaker = make_nodemaker(self._storage)
908 self._storage_broker = self._nodemaker.storage_broker
909 d = self._nodemaker.create_mutable_file(self.uploadable)
912 self._fn2 = self._nodemaker.create_from_cap(node.get_uri())
913 d.addCallback(_created)
916 def publish_mdmf(self):
917 # like publish_one, except that the result is guaranteed to be
919 # self.CONTENTS should have more than one segment.
920 self.CONTENTS = "This is an MDMF file" * 100000
921 self.uploadable = MutableData(self.CONTENTS)
922 self._storage = FakeStorage()
923 self._nodemaker = make_nodemaker(self._storage)
924 self._storage_broker = self._nodemaker.storage_broker
925 d = self._nodemaker.create_mutable_file(self.uploadable, version=MDMF_VERSION)
928 self._fn2 = self._nodemaker.create_from_cap(node.get_uri())
929 d.addCallback(_created)
933 def publish_sdmf(self):
934 # like publish_one, except that the result is guaranteed to be
936 self.CONTENTS = "This is an SDMF file" * 1000
937 self.uploadable = MutableData(self.CONTENTS)
938 self._storage = FakeStorage()
939 self._nodemaker = make_nodemaker(self._storage)
940 self._storage_broker = self._nodemaker.storage_broker
941 d = self._nodemaker.create_mutable_file(self.uploadable, version=SDMF_VERSION)
944 self._fn2 = self._nodemaker.create_from_cap(node.get_uri())
945 d.addCallback(_created)
948 def publish_empty_sdmf(self):
950 self.uploadable = MutableData(self.CONTENTS)
951 self._storage = FakeStorage()
952 self._nodemaker = make_nodemaker(self._storage, keysize=None)
953 self._storage_broker = self._nodemaker.storage_broker
954 d = self._nodemaker.create_mutable_file(self.uploadable,
955 version=SDMF_VERSION)
958 self._fn2 = self._nodemaker.create_from_cap(node.get_uri())
959 d.addCallback(_created)
963 def publish_multiple(self, version=0):
964 self.CONTENTS = ["Contents 0",
969 self.uploadables = [MutableData(d) for d in self.CONTENTS]
970 self._copied_shares = {}
971 self._storage = FakeStorage()
972 self._nodemaker = make_nodemaker(self._storage)
973 d = self._nodemaker.create_mutable_file(self.uploadables[0], version=version) # seqnum=1
976 # now create multiple versions of the same file, and accumulate
977 # their shares, so we can mix and match them later.
978 d = defer.succeed(None)
979 d.addCallback(self._copy_shares, 0)
980 d.addCallback(lambda res: node.overwrite(self.uploadables[1])) #s2
981 d.addCallback(self._copy_shares, 1)
982 d.addCallback(lambda res: node.overwrite(self.uploadables[2])) #s3
983 d.addCallback(self._copy_shares, 2)
984 d.addCallback(lambda res: node.overwrite(self.uploadables[3])) #s4a
985 d.addCallback(self._copy_shares, 3)
986 # now we replace all the shares with version s3, and upload a new
987 # version to get s4b.
988 rollback = dict([(i,2) for i in range(10)])
989 d.addCallback(lambda res: self._set_versions(rollback))
990 d.addCallback(lambda res: node.overwrite(self.uploadables[4])) #s4b
991 d.addCallback(self._copy_shares, 4)
992 # we leave the storage in state 4
994 d.addCallback(_created)
998 def _copy_shares(self, ignored, index):
999 shares = self._storage._peers
1000 # we need a deep copy
1002 for peerid in shares:
1003 new_shares[peerid] = {}
1004 for shnum in shares[peerid]:
1005 new_shares[peerid][shnum] = shares[peerid][shnum]
1006 self._copied_shares[index] = new_shares
1008 def _set_versions(self, versionmap):
1009 # versionmap maps shnums to which version (0,1,2,3,4) we want the
1010 # share to be at. Any shnum which is left out of the map will stay at
1011 # its current version.
1012 shares = self._storage._peers
1013 oldshares = self._copied_shares
1014 for peerid in shares:
1015 for shnum in shares[peerid]:
1016 if shnum in versionmap:
1017 index = versionmap[shnum]
1018 shares[peerid][shnum] = oldshares[index][peerid][shnum]
1020 class Servermap(unittest.TestCase, PublishMixin):
1022 return self.publish_one()
1024 def make_servermap(self, mode=MODE_CHECK, fn=None, sb=None,
1029 sb = self._storage_broker
1030 smu = ServermapUpdater(fn, sb, Monitor(),
1031 ServerMap(), mode, update_range=update_range)
1035 def update_servermap(self, oldmap, mode=MODE_CHECK):
1036 smu = ServermapUpdater(self._fn, self._storage_broker, Monitor(),
1041 def failUnlessOneRecoverable(self, sm, num_shares):
1042 self.failUnlessEqual(len(sm.recoverable_versions()), 1)
1043 self.failUnlessEqual(len(sm.unrecoverable_versions()), 0)
1044 best = sm.best_recoverable_version()
1045 self.failIfEqual(best, None)
1046 self.failUnlessEqual(sm.recoverable_versions(), set([best]))
1047 self.failUnlessEqual(len(sm.shares_available()), 1)
1048 self.failUnlessEqual(sm.shares_available()[best], (num_shares, 3, 10))
1049 shnum, servers = sm.make_sharemap().items()[0]
1050 server = list(servers)[0]
1051 self.failUnlessEqual(sm.version_on_server(server, shnum), best)
1052 self.failUnlessEqual(sm.version_on_server(server, 666), None)
1055 def test_basic(self):
1056 d = defer.succeed(None)
1057 ms = self.make_servermap
1058 us = self.update_servermap
1060 d.addCallback(lambda res: ms(mode=MODE_CHECK))
1061 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 10))
1062 d.addCallback(lambda res: ms(mode=MODE_WRITE))
1063 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 10))
1064 d.addCallback(lambda res: ms(mode=MODE_READ))
1065 # this mode stops at k+epsilon, and epsilon=k, so 6 shares
1066 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 6))
1067 d.addCallback(lambda res: ms(mode=MODE_ANYTHING))
1068 # this mode stops at 'k' shares
1069 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 3))
1071 # and can we re-use the same servermap? Note that these are sorted in
1072 # increasing order of number of servers queried, since once a server
1073 # gets into the servermap, we'll always ask it for an update.
1074 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 3))
1075 d.addCallback(lambda sm: us(sm, mode=MODE_READ))
1076 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 6))
1077 d.addCallback(lambda sm: us(sm, mode=MODE_WRITE))
1078 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 10))
1079 d.addCallback(lambda sm: us(sm, mode=MODE_CHECK))
1080 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 10))
1081 d.addCallback(lambda sm: us(sm, mode=MODE_ANYTHING))
1082 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 10))
1086 def test_fetch_privkey(self):
1087 d = defer.succeed(None)
1088 # use the sibling filenode (which hasn't been used yet), and make
1089 # sure it can fetch the privkey. The file is small, so the privkey
1090 # will be fetched on the first (query) pass.
1091 d.addCallback(lambda res: self.make_servermap(MODE_WRITE, self._fn2))
1092 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 10))
1094 # create a new file, which is large enough to knock the privkey out
1095 # of the early part of the file
1096 LARGE = "These are Larger contents" * 200 # about 5KB
1097 LARGE_uploadable = MutableData(LARGE)
1098 d.addCallback(lambda res: self._nodemaker.create_mutable_file(LARGE_uploadable))
1099 def _created(large_fn):
1100 large_fn2 = self._nodemaker.create_from_cap(large_fn.get_uri())
1101 return self.make_servermap(MODE_WRITE, large_fn2)
1102 d.addCallback(_created)
1103 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 10))
1107 def test_mark_bad(self):
1108 d = defer.succeed(None)
1109 ms = self.make_servermap
1111 d.addCallback(lambda res: ms(mode=MODE_READ))
1112 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 6))
1114 v = sm.best_recoverable_version()
1115 vm = sm.make_versionmap()
1116 shares = list(vm[v])
1117 self.failUnlessEqual(len(shares), 6)
1118 self._corrupted = set()
1119 # mark the first 5 shares as corrupt, then update the servermap.
1120 # The map should not have the marked shares it in any more, and
1121 # new shares should be found to replace the missing ones.
1122 for (shnum, server, timestamp) in shares:
1124 self._corrupted.add( (server, shnum) )
1125 sm.mark_bad_share(server, shnum, "")
1126 return self.update_servermap(sm, MODE_WRITE)
1127 d.addCallback(_made_map)
1129 # this should find all 5 shares that weren't marked bad
1130 v = sm.best_recoverable_version()
1131 vm = sm.make_versionmap()
1132 shares = list(vm[v])
1133 for (server, shnum) in self._corrupted:
1134 server_shares = sm.debug_shares_on_server(server)
1135 self.failIf(shnum in server_shares,
1136 "%d was in %s" % (shnum, server_shares))
1137 self.failUnlessEqual(len(shares), 5)
1138 d.addCallback(_check_map)
1141 def failUnlessNoneRecoverable(self, sm):
1142 self.failUnlessEqual(len(sm.recoverable_versions()), 0)
1143 self.failUnlessEqual(len(sm.unrecoverable_versions()), 0)
1144 best = sm.best_recoverable_version()
1145 self.failUnlessEqual(best, None)
1146 self.failUnlessEqual(len(sm.shares_available()), 0)
1148 def test_no_shares(self):
1149 self._storage._peers = {} # delete all shares
1150 ms = self.make_servermap
1151 d = defer.succeed(None)
1153 d.addCallback(lambda res: ms(mode=MODE_CHECK))
1154 d.addCallback(lambda sm: self.failUnlessNoneRecoverable(sm))
1156 d.addCallback(lambda res: ms(mode=MODE_ANYTHING))
1157 d.addCallback(lambda sm: self.failUnlessNoneRecoverable(sm))
1159 d.addCallback(lambda res: ms(mode=MODE_WRITE))
1160 d.addCallback(lambda sm: self.failUnlessNoneRecoverable(sm))
1162 d.addCallback(lambda res: ms(mode=MODE_READ))
1163 d.addCallback(lambda sm: self.failUnlessNoneRecoverable(sm))
1167 def failUnlessNotQuiteEnough(self, sm):
1168 self.failUnlessEqual(len(sm.recoverable_versions()), 0)
1169 self.failUnlessEqual(len(sm.unrecoverable_versions()), 1)
1170 best = sm.best_recoverable_version()
1171 self.failUnlessEqual(best, None)
1172 self.failUnlessEqual(len(sm.shares_available()), 1)
1173 self.failUnlessEqual(sm.shares_available().values()[0], (2,3,10) )
1176 def test_not_quite_enough_shares(self):
1178 ms = self.make_servermap
1179 num_shares = len(s._peers)
1180 for peerid in s._peers:
1181 s._peers[peerid] = {}
1185 # now there ought to be only two shares left
1186 assert len([peerid for peerid in s._peers if s._peers[peerid]]) == 2
1188 d = defer.succeed(None)
1190 d.addCallback(lambda res: ms(mode=MODE_CHECK))
1191 d.addCallback(lambda sm: self.failUnlessNotQuiteEnough(sm))
1192 d.addCallback(lambda sm:
1193 self.failUnlessEqual(len(sm.make_sharemap()), 2))
1194 d.addCallback(lambda res: ms(mode=MODE_ANYTHING))
1195 d.addCallback(lambda sm: self.failUnlessNotQuiteEnough(sm))
1196 d.addCallback(lambda res: ms(mode=MODE_WRITE))
1197 d.addCallback(lambda sm: self.failUnlessNotQuiteEnough(sm))
1198 d.addCallback(lambda res: ms(mode=MODE_READ))
1199 d.addCallback(lambda sm: self.failUnlessNotQuiteEnough(sm))
1204 def test_servermapupdater_finds_mdmf_files(self):
1205 # setUp already published an MDMF file for us. We just need to
1206 # make sure that when we run the ServermapUpdater, the file is
1207 # reported to have one recoverable version.
1208 d = defer.succeed(None)
1209 d.addCallback(lambda ignored:
1210 self.publish_mdmf())
1211 d.addCallback(lambda ignored:
1212 self.make_servermap(mode=MODE_CHECK))
1213 # Calling make_servermap also updates the servermap in the mode
1214 # that we specify, so we just need to see what it says.
1215 def _check_servermap(sm):
1216 self.failUnlessEqual(len(sm.recoverable_versions()), 1)
1217 d.addCallback(_check_servermap)
1221 def test_fetch_update(self):
1222 d = defer.succeed(None)
1223 d.addCallback(lambda ignored:
1224 self.publish_mdmf())
1225 d.addCallback(lambda ignored:
1226 self.make_servermap(mode=MODE_WRITE, update_range=(1, 2)))
1227 def _check_servermap(sm):
1229 self.failUnlessEqual(len(sm.update_data), 10)
1231 for data in sm.update_data.itervalues():
1232 self.failUnlessEqual(len(data), 1)
1233 d.addCallback(_check_servermap)
1237 def test_servermapupdater_finds_sdmf_files(self):
1238 d = defer.succeed(None)
1239 d.addCallback(lambda ignored:
1240 self.publish_sdmf())
1241 d.addCallback(lambda ignored:
1242 self.make_servermap(mode=MODE_CHECK))
1243 d.addCallback(lambda servermap:
1244 self.failUnlessEqual(len(servermap.recoverable_versions()), 1))
1248 class Roundtrip(unittest.TestCase, testutil.ShouldFailMixin, PublishMixin):
1250 return self.publish_one()
1252 def make_servermap(self, mode=MODE_READ, oldmap=None, sb=None):
1254 oldmap = ServerMap()
1256 sb = self._storage_broker
1257 smu = ServermapUpdater(self._fn, sb, Monitor(), oldmap, mode)
1261 def abbrev_verinfo(self, verinfo):
1264 (seqnum, root_hash, IV, segsize, datalength, k, N, prefix,
1265 offsets_tuple) = verinfo
1266 return "%d-%s" % (seqnum, base32.b2a(root_hash)[:4])
1268 def abbrev_verinfo_dict(self, verinfo_d):
1270 for verinfo,value in verinfo_d.items():
1271 (seqnum, root_hash, IV, segsize, datalength, k, N, prefix,
1272 offsets_tuple) = verinfo
1273 output["%d-%s" % (seqnum, base32.b2a(root_hash)[:4])] = value
1276 def dump_servermap(self, servermap):
1277 print "SERVERMAP", servermap
1278 print "RECOVERABLE", [self.abbrev_verinfo(v)
1279 for v in servermap.recoverable_versions()]
1280 print "BEST", self.abbrev_verinfo(servermap.best_recoverable_version())
1281 print "available", self.abbrev_verinfo_dict(servermap.shares_available())
1283 def do_download(self, servermap, version=None):
1285 version = servermap.best_recoverable_version()
1286 r = Retrieve(self._fn, self._storage_broker, servermap, version)
1287 c = consumer.MemoryConsumer()
1288 d = r.download(consumer=c)
1289 d.addCallback(lambda mc: "".join(mc.chunks))
1293 def test_basic(self):
1294 d = self.make_servermap()
1295 def _do_retrieve(servermap):
1296 self._smap = servermap
1297 #self.dump_servermap(servermap)
1298 self.failUnlessEqual(len(servermap.recoverable_versions()), 1)
1299 return self.do_download(servermap)
1300 d.addCallback(_do_retrieve)
1301 def _retrieved(new_contents):
1302 self.failUnlessEqual(new_contents, self.CONTENTS)
1303 d.addCallback(_retrieved)
1304 # we should be able to re-use the same servermap, both with and
1305 # without updating it.
1306 d.addCallback(lambda res: self.do_download(self._smap))
1307 d.addCallback(_retrieved)
1308 d.addCallback(lambda res: self.make_servermap(oldmap=self._smap))
1309 d.addCallback(lambda res: self.do_download(self._smap))
1310 d.addCallback(_retrieved)
1311 # clobbering the pubkey should make the servermap updater re-fetch it
1312 def _clobber_pubkey(res):
1313 self._fn._pubkey = None
1314 d.addCallback(_clobber_pubkey)
1315 d.addCallback(lambda res: self.make_servermap(oldmap=self._smap))
1316 d.addCallback(lambda res: self.do_download(self._smap))
1317 d.addCallback(_retrieved)
1320 def test_all_shares_vanished(self):
1321 d = self.make_servermap()
1322 def _remove_shares(servermap):
1323 for shares in self._storage._peers.values():
1325 d1 = self.shouldFail(NotEnoughSharesError,
1326 "test_all_shares_vanished",
1327 "ran out of servers",
1328 self.do_download, servermap)
1330 d.addCallback(_remove_shares)
1333 def test_no_servers(self):
1334 sb2 = make_storagebroker(num_peers=0)
1335 # if there are no servers, then a MODE_READ servermap should come
1337 d = self.make_servermap(sb=sb2)
1338 def _check_servermap(servermap):
1339 self.failUnlessEqual(servermap.best_recoverable_version(), None)
1340 self.failIf(servermap.recoverable_versions())
1341 self.failIf(servermap.unrecoverable_versions())
1342 self.failIf(servermap.all_servers())
1343 d.addCallback(_check_servermap)
1346 def test_no_servers_download(self):
1347 sb2 = make_storagebroker(num_peers=0)
1348 self._fn._storage_broker = sb2
1349 d = self.shouldFail(UnrecoverableFileError,
1350 "test_no_servers_download",
1351 "no recoverable versions",
1352 self._fn.download_best_version)
1354 # a failed download that occurs while we aren't connected to
1355 # anybody should not prevent a subsequent download from working.
1356 # This isn't quite the webapi-driven test that #463 wants, but it
1357 # should be close enough.
1358 self._fn._storage_broker = self._storage_broker
1359 return self._fn.download_best_version()
1360 def _retrieved(new_contents):
1361 self.failUnlessEqual(new_contents, self.CONTENTS)
1362 d.addCallback(_restore)
1363 d.addCallback(_retrieved)
1367 def _test_corrupt_all(self, offset, substring,
1368 should_succeed=False,
1370 failure_checker=None,
1371 fetch_privkey=False):
1372 d = defer.succeed(None)
1374 d.addCallback(corrupt, self._storage, offset)
1375 d.addCallback(lambda res: self.make_servermap())
1376 if not corrupt_early:
1377 d.addCallback(corrupt, self._storage, offset)
1378 def _do_retrieve(servermap):
1379 ver = servermap.best_recoverable_version()
1380 if ver is None and not should_succeed:
1381 # no recoverable versions == not succeeding. The problem
1382 # should be noted in the servermap's list of problems.
1384 allproblems = [str(f) for f in servermap.get_problems()]
1385 self.failUnlessIn(substring, "".join(allproblems))
1388 d1 = self._fn.download_version(servermap, ver,
1390 d1.addCallback(lambda new_contents:
1391 self.failUnlessEqual(new_contents, self.CONTENTS))
1393 d1 = self.shouldFail(NotEnoughSharesError,
1394 "_corrupt_all(offset=%s)" % (offset,),
1396 self._fn.download_version, servermap,
1400 d1.addCallback(failure_checker)
1401 d1.addCallback(lambda res: servermap)
1403 d.addCallback(_do_retrieve)
1406 def test_corrupt_all_verbyte(self):
1407 # when the version byte is not 0 or 1, we hit an UnknownVersionError
1408 # error in unpack_share().
1409 d = self._test_corrupt_all(0, "UnknownVersionError")
1410 def _check_servermap(servermap):
1411 # and the dump should mention the problems
1413 dump = servermap.dump(s).getvalue()
1414 self.failUnless("30 PROBLEMS" in dump, dump)
1415 d.addCallback(_check_servermap)
1418 def test_corrupt_all_seqnum(self):
1419 # a corrupt sequence number will trigger a bad signature
1420 return self._test_corrupt_all(1, "signature is invalid")
1422 def test_corrupt_all_R(self):
1423 # a corrupt root hash will trigger a bad signature
1424 return self._test_corrupt_all(9, "signature is invalid")
1426 def test_corrupt_all_IV(self):
1427 # a corrupt salt/IV will trigger a bad signature
1428 return self._test_corrupt_all(41, "signature is invalid")
1430 def test_corrupt_all_k(self):
1431 # a corrupt 'k' will trigger a bad signature
1432 return self._test_corrupt_all(57, "signature is invalid")
1434 def test_corrupt_all_N(self):
1435 # a corrupt 'N' will trigger a bad signature
1436 return self._test_corrupt_all(58, "signature is invalid")
1438 def test_corrupt_all_segsize(self):
1439 # a corrupt segsize will trigger a bad signature
1440 return self._test_corrupt_all(59, "signature is invalid")
1442 def test_corrupt_all_datalen(self):
1443 # a corrupt data length will trigger a bad signature
1444 return self._test_corrupt_all(67, "signature is invalid")
1446 def test_corrupt_all_pubkey(self):
1447 # a corrupt pubkey won't match the URI's fingerprint. We need to
1448 # remove the pubkey from the filenode, or else it won't bother trying
1450 self._fn._pubkey = None
1451 return self._test_corrupt_all("pubkey",
1452 "pubkey doesn't match fingerprint")
1454 def test_corrupt_all_sig(self):
1455 # a corrupt signature is a bad one
1456 # the signature runs from about [543:799], depending upon the length
1458 return self._test_corrupt_all("signature", "signature is invalid")
1460 def test_corrupt_all_share_hash_chain_number(self):
1461 # a corrupt share hash chain entry will show up as a bad hash. If we
1462 # mangle the first byte, that will look like a bad hash number,
1463 # causing an IndexError
1464 return self._test_corrupt_all("share_hash_chain", "corrupt hashes")
1466 def test_corrupt_all_share_hash_chain_hash(self):
1467 # a corrupt share hash chain entry will show up as a bad hash. If we
1468 # mangle a few bytes in, that will look like a bad hash.
1469 return self._test_corrupt_all(("share_hash_chain",4), "corrupt hashes")
1471 def test_corrupt_all_block_hash_tree(self):
1472 return self._test_corrupt_all("block_hash_tree",
1473 "block hash tree failure")
1475 def test_corrupt_all_block(self):
1476 return self._test_corrupt_all("share_data", "block hash tree failure")
1478 def test_corrupt_all_encprivkey(self):
1479 # a corrupted privkey won't even be noticed by the reader, only by a
1481 return self._test_corrupt_all("enc_privkey", None, should_succeed=True)
1484 def test_corrupt_all_encprivkey_late(self):
1485 # this should work for the same reason as above, but we corrupt
1486 # after the servermap update to exercise the error handling
1488 # We need to remove the privkey from the node, or the retrieve
1489 # process won't know to update it.
1490 self._fn._privkey = None
1491 return self._test_corrupt_all("enc_privkey",
1492 None, # this shouldn't fail
1493 should_succeed=True,
1494 corrupt_early=False,
1498 # disabled until retrieve tests checkstring on each blockfetch. I didn't
1499 # just use a .todo because the failing-but-ignored test emits about 30kB
1501 def OFF_test_corrupt_all_seqnum_late(self):
1502 # corrupting the seqnum between mapupdate and retrieve should result
1503 # in NotEnoughSharesError, since each share will look invalid
1506 self.failUnless(f.check(NotEnoughSharesError))
1507 self.failUnless("uncoordinated write" in str(f))
1508 return self._test_corrupt_all(1, "ran out of servers",
1509 corrupt_early=False,
1510 failure_checker=_check)
1513 def test_corrupt_all_block_late(self):
1516 self.failUnless(f.check(NotEnoughSharesError))
1517 return self._test_corrupt_all("share_data", "block hash tree failure",
1518 corrupt_early=False,
1519 failure_checker=_check)
1522 def test_basic_pubkey_at_end(self):
1523 # we corrupt the pubkey in all but the last 'k' shares, allowing the
1524 # download to succeed but forcing a bunch of retries first. Note that
1525 # this is rather pessimistic: our Retrieve process will throw away
1526 # the whole share if the pubkey is bad, even though the rest of the
1527 # share might be good.
1529 self._fn._pubkey = None
1530 k = self._fn.get_required_shares()
1531 N = self._fn.get_total_shares()
1532 d = defer.succeed(None)
1533 d.addCallback(corrupt, self._storage, "pubkey",
1534 shnums_to_corrupt=range(0, N-k))
1535 d.addCallback(lambda res: self.make_servermap())
1536 def _do_retrieve(servermap):
1537 self.failUnless(servermap.get_problems())
1538 self.failUnless("pubkey doesn't match fingerprint"
1539 in str(servermap.get_problems()[0]))
1540 ver = servermap.best_recoverable_version()
1541 r = Retrieve(self._fn, self._storage_broker, servermap, ver)
1542 c = consumer.MemoryConsumer()
1543 return r.download(c)
1544 d.addCallback(_do_retrieve)
1545 d.addCallback(lambda mc: "".join(mc.chunks))
1546 d.addCallback(lambda new_contents:
1547 self.failUnlessEqual(new_contents, self.CONTENTS))
1551 def _test_corrupt_some(self, offset, mdmf=False):
1553 d = self.publish_mdmf()
1555 d = defer.succeed(None)
1556 d.addCallback(lambda ignored:
1557 corrupt(None, self._storage, offset, range(5)))
1558 d.addCallback(lambda ignored:
1559 self.make_servermap())
1560 def _do_retrieve(servermap):
1561 ver = servermap.best_recoverable_version()
1562 self.failUnless(ver)
1563 return self._fn.download_best_version()
1564 d.addCallback(_do_retrieve)
1565 d.addCallback(lambda new_contents:
1566 self.failUnlessEqual(new_contents, self.CONTENTS))
1570 def test_corrupt_some(self):
1571 # corrupt the data of first five shares (so the servermap thinks
1572 # they're good but retrieve marks them as bad), so that the
1573 # MODE_READ set of 6 will be insufficient, forcing node.download to
1574 # retry with more servers.
1575 return self._test_corrupt_some("share_data")
1578 def test_download_fails(self):
1579 d = corrupt(None, self._storage, "signature")
1580 d.addCallback(lambda ignored:
1581 self.shouldFail(UnrecoverableFileError, "test_download_anyway",
1582 "no recoverable versions",
1583 self._fn.download_best_version))
1588 def test_corrupt_mdmf_block_hash_tree(self):
1589 d = self.publish_mdmf()
1590 d.addCallback(lambda ignored:
1591 self._test_corrupt_all(("block_hash_tree", 12 * 32),
1592 "block hash tree failure",
1594 should_succeed=False))
1598 def test_corrupt_mdmf_block_hash_tree_late(self):
1599 # Note - there is no SDMF counterpart to this test, as the SDMF
1600 # files are guaranteed to have exactly one block, and therefore
1601 # the block hash tree fits within the initial read (#1240).
1602 d = self.publish_mdmf()
1603 d.addCallback(lambda ignored:
1604 self._test_corrupt_all(("block_hash_tree", 12 * 32),
1605 "block hash tree failure",
1606 corrupt_early=False,
1607 should_succeed=False))
1611 def test_corrupt_mdmf_share_data(self):
1612 d = self.publish_mdmf()
1613 d.addCallback(lambda ignored:
1614 # TODO: Find out what the block size is and corrupt a
1615 # specific block, rather than just guessing.
1616 self._test_corrupt_all(("share_data", 12 * 40),
1617 "block hash tree failure",
1619 should_succeed=False))
1623 def test_corrupt_some_mdmf(self):
1624 return self._test_corrupt_some(("share_data", 12 * 40),
1629 def check_good(self, r, where):
1630 self.failUnless(r.is_healthy(), where)
1633 def check_bad(self, r, where):
1634 self.failIf(r.is_healthy(), where)
1637 def check_expected_failure(self, r, expected_exception, substring, where):
1638 for (peerid, storage_index, shnum, f) in r.get_share_problems():
1639 if f.check(expected_exception):
1640 self.failUnless(substring in str(f),
1641 "%s: substring '%s' not in '%s'" %
1642 (where, substring, str(f)))
1644 self.fail("%s: didn't see expected exception %s in problems %s" %
1645 (where, expected_exception, r.get_share_problems()))
1648 class Checker(unittest.TestCase, CheckerMixin, PublishMixin):
1650 return self.publish_one()
1653 def test_check_good(self):
1654 d = self._fn.check(Monitor())
1655 d.addCallback(self.check_good, "test_check_good")
1658 def test_check_mdmf_good(self):
1659 d = self.publish_mdmf()
1660 d.addCallback(lambda ignored:
1661 self._fn.check(Monitor()))
1662 d.addCallback(self.check_good, "test_check_mdmf_good")
1665 def test_check_no_shares(self):
1666 for shares in self._storage._peers.values():
1668 d = self._fn.check(Monitor())
1669 d.addCallback(self.check_bad, "test_check_no_shares")
1672 def test_check_mdmf_no_shares(self):
1673 d = self.publish_mdmf()
1675 for share in self._storage._peers.values():
1677 d.addCallback(_then)
1678 d.addCallback(lambda ignored:
1679 self._fn.check(Monitor()))
1680 d.addCallback(self.check_bad, "test_check_mdmf_no_shares")
1683 def test_check_not_enough_shares(self):
1684 for shares in self._storage._peers.values():
1685 for shnum in shares.keys():
1688 d = self._fn.check(Monitor())
1689 d.addCallback(self.check_bad, "test_check_not_enough_shares")
1692 def test_check_mdmf_not_enough_shares(self):
1693 d = self.publish_mdmf()
1695 for shares in self._storage._peers.values():
1696 for shnum in shares.keys():
1699 d.addCallback(_then)
1700 d.addCallback(lambda ignored:
1701 self._fn.check(Monitor()))
1702 d.addCallback(self.check_bad, "test_check_mdmf_not_enougH_shares")
1706 def test_check_all_bad_sig(self):
1707 d = corrupt(None, self._storage, 1) # bad sig
1708 d.addCallback(lambda ignored:
1709 self._fn.check(Monitor()))
1710 d.addCallback(self.check_bad, "test_check_all_bad_sig")
1713 def test_check_mdmf_all_bad_sig(self):
1714 d = self.publish_mdmf()
1715 d.addCallback(lambda ignored:
1716 corrupt(None, self._storage, 1))
1717 d.addCallback(lambda ignored:
1718 self._fn.check(Monitor()))
1719 d.addCallback(self.check_bad, "test_check_mdmf_all_bad_sig")
1722 def test_verify_mdmf_all_bad_sharedata(self):
1723 d = self.publish_mdmf()
1724 # On 8 of the shares, corrupt the beginning of the share data.
1725 # The signature check during the servermap update won't catch this.
1726 d.addCallback(lambda ignored:
1727 corrupt(None, self._storage, "share_data", range(8)))
1728 # On 2 of the shares, corrupt the end of the share data.
1729 # The signature check during the servermap update won't catch
1730 # this either, and the retrieval process will have to process
1731 # all of the segments before it notices.
1732 d.addCallback(lambda ignored:
1733 # the block hash tree comes right after the share data, so if we
1734 # corrupt a little before the block hash tree, we'll corrupt in the
1735 # last block of each share.
1736 corrupt(None, self._storage, "block_hash_tree", [8, 9], -5))
1737 d.addCallback(lambda ignored:
1738 self._fn.check(Monitor(), verify=True))
1739 # The verifier should flag the file as unhealthy, and should
1740 # list all 10 shares as bad.
1741 d.addCallback(self.check_bad, "test_verify_mdmf_all_bad_sharedata")
1742 def _check_num_bad(r):
1743 self.failIf(r.is_recoverable())
1744 smap = r.get_servermap()
1745 self.failUnlessEqual(len(smap.get_bad_shares()), 10)
1746 d.addCallback(_check_num_bad)
1749 def test_check_all_bad_blocks(self):
1750 d = corrupt(None, self._storage, "share_data", [9]) # bad blocks
1751 # the Checker won't notice this.. it doesn't look at actual data
1752 d.addCallback(lambda ignored:
1753 self._fn.check(Monitor()))
1754 d.addCallback(self.check_good, "test_check_all_bad_blocks")
1758 def test_check_mdmf_all_bad_blocks(self):
1759 d = self.publish_mdmf()
1760 d.addCallback(lambda ignored:
1761 corrupt(None, self._storage, "share_data"))
1762 d.addCallback(lambda ignored:
1763 self._fn.check(Monitor()))
1764 d.addCallback(self.check_good, "test_check_mdmf_all_bad_blocks")
1767 def test_verify_good(self):
1768 d = self._fn.check(Monitor(), verify=True)
1769 d.addCallback(self.check_good, "test_verify_good")
1772 def test_verify_all_bad_sig(self):
1773 d = corrupt(None, self._storage, 1) # bad sig
1774 d.addCallback(lambda ignored:
1775 self._fn.check(Monitor(), verify=True))
1776 d.addCallback(self.check_bad, "test_verify_all_bad_sig")
1779 def test_verify_one_bad_sig(self):
1780 d = corrupt(None, self._storage, 1, [9]) # bad sig
1781 d.addCallback(lambda ignored:
1782 self._fn.check(Monitor(), verify=True))
1783 d.addCallback(self.check_bad, "test_verify_one_bad_sig")
1786 def test_verify_one_bad_block(self):
1787 d = corrupt(None, self._storage, "share_data", [9]) # bad blocks
1788 # the Verifier *will* notice this, since it examines every byte
1789 d.addCallback(lambda ignored:
1790 self._fn.check(Monitor(), verify=True))
1791 d.addCallback(self.check_bad, "test_verify_one_bad_block")
1792 d.addCallback(self.check_expected_failure,
1793 CorruptShareError, "block hash tree failure",
1794 "test_verify_one_bad_block")
1797 def test_verify_one_bad_sharehash(self):
1798 d = corrupt(None, self._storage, "share_hash_chain", [9], 5)
1799 d.addCallback(lambda ignored:
1800 self._fn.check(Monitor(), verify=True))
1801 d.addCallback(self.check_bad, "test_verify_one_bad_sharehash")
1802 d.addCallback(self.check_expected_failure,
1803 CorruptShareError, "corrupt hashes",
1804 "test_verify_one_bad_sharehash")
1807 def test_verify_one_bad_encprivkey(self):
1808 d = corrupt(None, self._storage, "enc_privkey", [9]) # bad privkey
1809 d.addCallback(lambda ignored:
1810 self._fn.check(Monitor(), verify=True))
1811 d.addCallback(self.check_bad, "test_verify_one_bad_encprivkey")
1812 d.addCallback(self.check_expected_failure,
1813 CorruptShareError, "invalid privkey",
1814 "test_verify_one_bad_encprivkey")
1817 def test_verify_one_bad_encprivkey_uncheckable(self):
1818 d = corrupt(None, self._storage, "enc_privkey", [9]) # bad privkey
1819 readonly_fn = self._fn.get_readonly()
1820 # a read-only node has no way to validate the privkey
1821 d.addCallback(lambda ignored:
1822 readonly_fn.check(Monitor(), verify=True))
1823 d.addCallback(self.check_good,
1824 "test_verify_one_bad_encprivkey_uncheckable")
1828 def test_verify_mdmf_good(self):
1829 d = self.publish_mdmf()
1830 d.addCallback(lambda ignored:
1831 self._fn.check(Monitor(), verify=True))
1832 d.addCallback(self.check_good, "test_verify_mdmf_good")
1836 def test_verify_mdmf_one_bad_block(self):
1837 d = self.publish_mdmf()
1838 d.addCallback(lambda ignored:
1839 corrupt(None, self._storage, "share_data", [1]))
1840 d.addCallback(lambda ignored:
1841 self._fn.check(Monitor(), verify=True))
1842 # We should find one bad block here
1843 d.addCallback(self.check_bad, "test_verify_mdmf_one_bad_block")
1844 d.addCallback(self.check_expected_failure,
1845 CorruptShareError, "block hash tree failure",
1846 "test_verify_mdmf_one_bad_block")
1850 def test_verify_mdmf_bad_encprivkey(self):
1851 d = self.publish_mdmf()
1852 d.addCallback(lambda ignored:
1853 corrupt(None, self._storage, "enc_privkey", [0]))
1854 d.addCallback(lambda ignored:
1855 self._fn.check(Monitor(), verify=True))
1856 d.addCallback(self.check_bad, "test_verify_mdmf_bad_encprivkey")
1857 d.addCallback(self.check_expected_failure,
1858 CorruptShareError, "privkey",
1859 "test_verify_mdmf_bad_encprivkey")
1863 def test_verify_mdmf_bad_sig(self):
1864 d = self.publish_mdmf()
1865 d.addCallback(lambda ignored:
1866 corrupt(None, self._storage, 1, [1]))
1867 d.addCallback(lambda ignored:
1868 self._fn.check(Monitor(), verify=True))
1869 d.addCallback(self.check_bad, "test_verify_mdmf_bad_sig")
1873 def test_verify_mdmf_bad_encprivkey_uncheckable(self):
1874 d = self.publish_mdmf()
1875 d.addCallback(lambda ignored:
1876 corrupt(None, self._storage, "enc_privkey", [1]))
1877 d.addCallback(lambda ignored:
1878 self._fn.get_readonly())
1879 d.addCallback(lambda fn:
1880 fn.check(Monitor(), verify=True))
1881 d.addCallback(self.check_good,
1882 "test_verify_mdmf_bad_encprivkey_uncheckable")
1886 class Repair(unittest.TestCase, PublishMixin, ShouldFailMixin):
1888 def get_shares(self, s):
1889 all_shares = {} # maps (peerid, shnum) to share data
1890 for peerid in s._peers:
1891 shares = s._peers[peerid]
1892 for shnum in shares:
1893 data = shares[shnum]
1894 all_shares[ (peerid, shnum) ] = data
1897 def copy_shares(self, ignored=None):
1898 self.old_shares.append(self.get_shares(self._storage))
1900 def test_repair_nop(self):
1901 self.old_shares = []
1902 d = self.publish_one()
1903 d.addCallback(self.copy_shares)
1904 d.addCallback(lambda res: self._fn.check(Monitor()))
1905 d.addCallback(lambda check_results: self._fn.repair(check_results))
1906 def _check_results(rres):
1907 self.failUnless(IRepairResults.providedBy(rres))
1908 self.failUnless(rres.get_successful())
1909 # TODO: examine results
1913 initial_shares = self.old_shares[0]
1914 new_shares = self.old_shares[1]
1915 # TODO: this really shouldn't change anything. When we implement
1916 # a "minimal-bandwidth" repairer", change this test to assert:
1917 #self.failUnlessEqual(new_shares, initial_shares)
1919 # all shares should be in the same place as before
1920 self.failUnlessEqual(set(initial_shares.keys()),
1921 set(new_shares.keys()))
1922 # but they should all be at a newer seqnum. The IV will be
1923 # different, so the roothash will be too.
1924 for key in initial_shares:
1929 k0, N0, segsize0, datalen0,
1930 o0) = unpack_header(initial_shares[key])
1935 k1, N1, segsize1, datalen1,
1936 o1) = unpack_header(new_shares[key])
1937 self.failUnlessEqual(version0, version1)
1938 self.failUnlessEqual(seqnum0+1, seqnum1)
1939 self.failUnlessEqual(k0, k1)
1940 self.failUnlessEqual(N0, N1)
1941 self.failUnlessEqual(segsize0, segsize1)
1942 self.failUnlessEqual(datalen0, datalen1)
1943 d.addCallback(_check_results)
1946 def failIfSharesChanged(self, ignored=None):
1947 old_shares = self.old_shares[-2]
1948 current_shares = self.old_shares[-1]
1949 self.failUnlessEqual(old_shares, current_shares)
1952 def _test_whether_repairable(self, publisher, nshares, expected_result):
1954 def _delete_some_shares(ign):
1955 shares = self._storage._peers
1956 for peerid in shares:
1957 for shnum in list(shares[peerid]):
1958 if shnum >= nshares:
1959 del shares[peerid][shnum]
1960 d.addCallback(_delete_some_shares)
1961 d.addCallback(lambda ign: self._fn.check(Monitor()))
1963 self.failIf(cr.is_healthy())
1964 self.failUnlessEqual(cr.is_recoverable(), expected_result)
1966 d.addCallback(_check)
1967 d.addCallback(lambda check_results: self._fn.repair(check_results))
1968 d.addCallback(lambda crr: self.failUnlessEqual(crr.get_successful(), expected_result))
1971 def test_unrepairable_0shares(self):
1972 return self._test_whether_repairable(self.publish_one, 0, False)
1974 def test_mdmf_unrepairable_0shares(self):
1975 return self._test_whether_repairable(self.publish_mdmf, 0, False)
1977 def test_unrepairable_1share(self):
1978 return self._test_whether_repairable(self.publish_one, 1, False)
1980 def test_mdmf_unrepairable_1share(self):
1981 return self._test_whether_repairable(self.publish_mdmf, 1, False)
1983 def test_repairable_5shares(self):
1984 return self._test_whether_repairable(self.publish_one, 5, True)
1986 def test_mdmf_repairable_5shares(self):
1987 return self._test_whether_repairable(self.publish_mdmf, 5, True)
1989 def _test_whether_checkandrepairable(self, publisher, nshares, expected_result):
1991 Like the _test_whether_repairable tests, but invoking check_and_repair
1992 instead of invoking check and then invoking repair.
1995 def _delete_some_shares(ign):
1996 shares = self._storage._peers
1997 for peerid in shares:
1998 for shnum in list(shares[peerid]):
1999 if shnum >= nshares:
2000 del shares[peerid][shnum]
2001 d.addCallback(_delete_some_shares)
2002 d.addCallback(lambda ign: self._fn.check_and_repair(Monitor()))
2003 d.addCallback(lambda crr: self.failUnlessEqual(crr.get_repair_successful(), expected_result))
2006 def test_unrepairable_0shares_checkandrepair(self):
2007 return self._test_whether_checkandrepairable(self.publish_one, 0, False)
2009 def test_mdmf_unrepairable_0shares_checkandrepair(self):
2010 return self._test_whether_checkandrepairable(self.publish_mdmf, 0, False)
2012 def test_unrepairable_1share_checkandrepair(self):
2013 return self._test_whether_checkandrepairable(self.publish_one, 1, False)
2015 def test_mdmf_unrepairable_1share_checkandrepair(self):
2016 return self._test_whether_checkandrepairable(self.publish_mdmf, 1, False)
2018 def test_repairable_5shares_checkandrepair(self):
2019 return self._test_whether_checkandrepairable(self.publish_one, 5, True)
2021 def test_mdmf_repairable_5shares_checkandrepair(self):
2022 return self._test_whether_checkandrepairable(self.publish_mdmf, 5, True)
2025 def test_merge(self):
2026 self.old_shares = []
2027 d = self.publish_multiple()
2028 # repair will refuse to merge multiple highest seqnums unless you
2030 d.addCallback(lambda res:
2031 self._set_versions({0:3,2:3,4:3,6:3,8:3,
2032 1:4,3:4,5:4,7:4,9:4}))
2033 d.addCallback(self.copy_shares)
2034 d.addCallback(lambda res: self._fn.check(Monitor()))
2035 def _try_repair(check_results):
2036 ex = "There were multiple recoverable versions with identical seqnums, so force=True must be passed to the repair() operation"
2037 d2 = self.shouldFail(MustForceRepairError, "test_merge", ex,
2038 self._fn.repair, check_results)
2039 d2.addCallback(self.copy_shares)
2040 d2.addCallback(self.failIfSharesChanged)
2041 d2.addCallback(lambda res: check_results)
2043 d.addCallback(_try_repair)
2044 d.addCallback(lambda check_results:
2045 self._fn.repair(check_results, force=True))
2046 # this should give us 10 shares of the highest roothash
2047 def _check_repair_results(rres):
2048 self.failUnless(rres.get_successful())
2050 d.addCallback(_check_repair_results)
2051 d.addCallback(lambda res: self._fn.get_servermap(MODE_CHECK))
2052 def _check_smap(smap):
2053 self.failUnlessEqual(len(smap.recoverable_versions()), 1)
2054 self.failIf(smap.unrecoverable_versions())
2055 # now, which should have won?
2056 roothash_s4a = self.get_roothash_for(3)
2057 roothash_s4b = self.get_roothash_for(4)
2058 if roothash_s4b > roothash_s4a:
2059 expected_contents = self.CONTENTS[4]
2061 expected_contents = self.CONTENTS[3]
2062 new_versionid = smap.best_recoverable_version()
2063 self.failUnlessEqual(new_versionid[0], 5) # seqnum 5
2064 d2 = self._fn.download_version(smap, new_versionid)
2065 d2.addCallback(self.failUnlessEqual, expected_contents)
2067 d.addCallback(_check_smap)
2070 def test_non_merge(self):
2071 self.old_shares = []
2072 d = self.publish_multiple()
2073 # repair should not refuse a repair that doesn't need to merge. In
2074 # this case, we combine v2 with v3. The repair should ignore v2 and
2075 # copy v3 into a new v5.
2076 d.addCallback(lambda res:
2077 self._set_versions({0:2,2:2,4:2,6:2,8:2,
2078 1:3,3:3,5:3,7:3,9:3}))
2079 d.addCallback(lambda res: self._fn.check(Monitor()))
2080 d.addCallback(lambda check_results: self._fn.repair(check_results))
2081 # this should give us 10 shares of v3
2082 def _check_repair_results(rres):
2083 self.failUnless(rres.get_successful())
2085 d.addCallback(_check_repair_results)
2086 d.addCallback(lambda res: self._fn.get_servermap(MODE_CHECK))
2087 def _check_smap(smap):
2088 self.failUnlessEqual(len(smap.recoverable_versions()), 1)
2089 self.failIf(smap.unrecoverable_versions())
2090 # now, which should have won?
2091 expected_contents = self.CONTENTS[3]
2092 new_versionid = smap.best_recoverable_version()
2093 self.failUnlessEqual(new_versionid[0], 5) # seqnum 5
2094 d2 = self._fn.download_version(smap, new_versionid)
2095 d2.addCallback(self.failUnlessEqual, expected_contents)
2097 d.addCallback(_check_smap)
2100 def get_roothash_for(self, index):
2101 # return the roothash for the first share we see in the saved set
2102 shares = self._copied_shares[index]
2103 for peerid in shares:
2104 for shnum in shares[peerid]:
2105 share = shares[peerid][shnum]
2106 (version, seqnum, root_hash, IV, k, N, segsize, datalen, o) = \
2107 unpack_header(share)
2110 def test_check_and_repair_readcap(self):
2111 # we can't currently repair from a mutable readcap: #625
2112 self.old_shares = []
2113 d = self.publish_one()
2114 d.addCallback(self.copy_shares)
2115 def _get_readcap(res):
2116 self._fn3 = self._fn.get_readonly()
2117 # also delete some shares
2118 for peerid,shares in self._storage._peers.items():
2120 d.addCallback(_get_readcap)
2121 d.addCallback(lambda res: self._fn3.check_and_repair(Monitor()))
2122 def _check_results(crr):
2123 self.failUnless(ICheckAndRepairResults.providedBy(crr))
2124 # we should detect the unhealthy, but skip over mutable-readcap
2125 # repairs until #625 is fixed
2126 self.failIf(crr.get_pre_repair_results().is_healthy())
2127 self.failIf(crr.get_repair_attempted())
2128 self.failIf(crr.get_post_repair_results().is_healthy())
2129 d.addCallback(_check_results)
2132 def test_repair_empty(self):
2133 # bug 1689: delete one share of an empty mutable file, then repair.
2134 # In the buggy version, the check that precedes the retrieve+publish
2135 # cycle uses MODE_READ, instead of MODE_REPAIR, and fails to get the
2136 # privkey that repair needs.
2137 d = self.publish_empty_sdmf()
2138 def _delete_one_share(ign):
2139 shares = self._storage._peers
2140 for peerid in shares:
2141 for shnum in list(shares[peerid]):
2143 del shares[peerid][shnum]
2144 d.addCallback(_delete_one_share)
2145 d.addCallback(lambda ign: self._fn2.check(Monitor()))
2146 d.addCallback(lambda check_results: self._fn2.repair(check_results))
2148 self.failUnlessEqual(crr.get_successful(), True)
2149 d.addCallback(_check)
2152 class DevNullDictionary(dict):
2153 def __setitem__(self, key, value):
2156 class MultipleEncodings(unittest.TestCase):
2158 self.CONTENTS = "New contents go here"
2159 self.uploadable = MutableData(self.CONTENTS)
2160 self._storage = FakeStorage()
2161 self._nodemaker = make_nodemaker(self._storage, num_peers=20)
2162 self._storage_broker = self._nodemaker.storage_broker
2163 d = self._nodemaker.create_mutable_file(self.uploadable)
2166 d.addCallback(_created)
2169 def _encode(self, k, n, data, version=SDMF_VERSION):
2170 # encode 'data' into a peerid->shares dict.
2173 # disable the nodecache, since for these tests we explicitly need
2174 # multiple nodes pointing at the same file
2175 self._nodemaker._node_cache = DevNullDictionary()
2176 fn2 = self._nodemaker.create_from_cap(fn.get_uri())
2177 # then we copy over other fields that are normally fetched from the
2179 fn2._pubkey = fn._pubkey
2180 fn2._privkey = fn._privkey
2181 fn2._encprivkey = fn._encprivkey
2182 # and set the encoding parameters to something completely different
2183 fn2._required_shares = k
2184 fn2._total_shares = n
2187 s._peers = {} # clear existing storage
2188 p2 = Publish(fn2, self._storage_broker, None)
2189 uploadable = MutableData(data)
2190 d = p2.publish(uploadable)
2191 def _published(res):
2195 d.addCallback(_published)
2198 def make_servermap(self, mode=MODE_READ, oldmap=None):
2200 oldmap = ServerMap()
2201 smu = ServermapUpdater(self._fn, self._storage_broker, Monitor(),
2206 def test_multiple_encodings(self):
2207 # we encode the same file in two different ways (3-of-10 and 4-of-9),
2208 # then mix up the shares, to make sure that download survives seeing
2209 # a variety of encodings. This is actually kind of tricky to set up.
2211 contents1 = "Contents for encoding 1 (3-of-10) go here"*1000
2212 contents2 = "Contents for encoding 2 (4-of-9) go here"*1000
2213 contents3 = "Contents for encoding 3 (4-of-7) go here"*1000
2215 # we make a retrieval object that doesn't know what encoding
2217 fn3 = self._nodemaker.create_from_cap(self._fn.get_uri())
2219 # now we upload a file through fn1, and grab its shares
2220 d = self._encode(3, 10, contents1)
2221 def _encoded_1(shares):
2222 self._shares1 = shares
2223 d.addCallback(_encoded_1)
2224 d.addCallback(lambda res: self._encode(4, 9, contents2))
2225 def _encoded_2(shares):
2226 self._shares2 = shares
2227 d.addCallback(_encoded_2)
2228 d.addCallback(lambda res: self._encode(4, 7, contents3))
2229 def _encoded_3(shares):
2230 self._shares3 = shares
2231 d.addCallback(_encoded_3)
2234 log.msg("merging sharelists")
2235 # we merge the shares from the two sets, leaving each shnum in
2236 # its original location, but using a share from set1 or set2
2237 # according to the following sequence:
2248 # so that neither form can be recovered until fetch [f], at which
2249 # point version-s1 (the 3-of-10 form) should be recoverable. If
2250 # the implementation latches on to the first version it sees,
2251 # then s2 will be recoverable at fetch [g].
2253 # Later, when we implement code that handles multiple versions,
2254 # we can use this framework to assert that all recoverable
2255 # versions are retrieved, and test that 'epsilon' does its job
2257 places = [2, 2, 3, 2, 1, 1, 1, 2]
2260 sb = self._storage_broker
2262 for peerid in sorted(sb.get_all_serverids()):
2263 for shnum in self._shares1.get(peerid, {}):
2264 if shnum < len(places):
2265 which = places[shnum]
2268 self._storage._peers[peerid] = peers = {}
2269 in_1 = shnum in self._shares1[peerid]
2270 in_2 = shnum in self._shares2.get(peerid, {})
2271 in_3 = shnum in self._shares3.get(peerid, {})
2274 peers[shnum] = self._shares1[peerid][shnum]
2275 sharemap[shnum] = peerid
2278 peers[shnum] = self._shares2[peerid][shnum]
2279 sharemap[shnum] = peerid
2282 peers[shnum] = self._shares3[peerid][shnum]
2283 sharemap[shnum] = peerid
2285 # we don't bother placing any other shares
2286 # now sort the sequence so that share 0 is returned first
2287 new_sequence = [sharemap[shnum]
2288 for shnum in sorted(sharemap.keys())]
2289 self._storage._sequence = new_sequence
2290 log.msg("merge done")
2291 d.addCallback(_merge)
2292 d.addCallback(lambda res: fn3.download_best_version())
2293 def _retrieved(new_contents):
2294 # the current specified behavior is "first version recoverable"
2295 self.failUnlessEqual(new_contents, contents1)
2296 d.addCallback(_retrieved)
2300 class MultipleVersions(unittest.TestCase, PublishMixin, CheckerMixin):
2303 return self.publish_multiple()
2305 def test_multiple_versions(self):
2306 # if we see a mix of versions in the grid, download_best_version
2307 # should get the latest one
2308 self._set_versions(dict([(i,2) for i in (0,2,4,6,8)]))
2309 d = self._fn.download_best_version()
2310 d.addCallback(lambda res: self.failUnlessEqual(res, self.CONTENTS[4]))
2311 # and the checker should report problems
2312 d.addCallback(lambda res: self._fn.check(Monitor()))
2313 d.addCallback(self.check_bad, "test_multiple_versions")
2315 # but if everything is at version 2, that's what we should download
2316 d.addCallback(lambda res:
2317 self._set_versions(dict([(i,2) for i in range(10)])))
2318 d.addCallback(lambda res: self._fn.download_best_version())
2319 d.addCallback(lambda res: self.failUnlessEqual(res, self.CONTENTS[2]))
2320 # if exactly one share is at version 3, we should still get v2
2321 d.addCallback(lambda res:
2322 self._set_versions({0:3}))
2323 d.addCallback(lambda res: self._fn.download_best_version())
2324 d.addCallback(lambda res: self.failUnlessEqual(res, self.CONTENTS[2]))
2325 # but the servermap should see the unrecoverable version. This
2326 # depends upon the single newer share being queried early.
2327 d.addCallback(lambda res: self._fn.get_servermap(MODE_READ))
2328 def _check_smap(smap):
2329 self.failUnlessEqual(len(smap.unrecoverable_versions()), 1)
2330 newer = smap.unrecoverable_newer_versions()
2331 self.failUnlessEqual(len(newer), 1)
2332 verinfo, health = newer.items()[0]
2333 self.failUnlessEqual(verinfo[0], 4)
2334 self.failUnlessEqual(health, (1,3))
2335 self.failIf(smap.needs_merge())
2336 d.addCallback(_check_smap)
2337 # if we have a mix of two parallel versions (s4a and s4b), we could
2339 d.addCallback(lambda res:
2340 self._set_versions({0:3,2:3,4:3,6:3,8:3,
2341 1:4,3:4,5:4,7:4,9:4}))
2342 d.addCallback(lambda res: self._fn.get_servermap(MODE_READ))
2343 def _check_smap_mixed(smap):
2344 self.failUnlessEqual(len(smap.unrecoverable_versions()), 0)
2345 newer = smap.unrecoverable_newer_versions()
2346 self.failUnlessEqual(len(newer), 0)
2347 self.failUnless(smap.needs_merge())
2348 d.addCallback(_check_smap_mixed)
2349 d.addCallback(lambda res: self._fn.download_best_version())
2350 d.addCallback(lambda res: self.failUnless(res == self.CONTENTS[3] or
2351 res == self.CONTENTS[4]))
2354 def test_replace(self):
2355 # if we see a mix of versions in the grid, we should be able to
2356 # replace them all with a newer version
2358 # if exactly one share is at version 3, we should download (and
2359 # replace) v2, and the result should be v4. Note that the index we
2360 # give to _set_versions is different than the sequence number.
2361 target = dict([(i,2) for i in range(10)]) # seqnum3
2362 target[0] = 3 # seqnum4
2363 self._set_versions(target)
2365 def _modify(oldversion, servermap, first_time):
2366 return oldversion + " modified"
2367 d = self._fn.modify(_modify)
2368 d.addCallback(lambda res: self._fn.download_best_version())
2369 expected = self.CONTENTS[2] + " modified"
2370 d.addCallback(lambda res: self.failUnlessEqual(res, expected))
2371 # and the servermap should indicate that the outlier was replaced too
2372 d.addCallback(lambda res: self._fn.get_servermap(MODE_CHECK))
2373 def _check_smap(smap):
2374 self.failUnlessEqual(smap.highest_seqnum(), 5)
2375 self.failUnlessEqual(len(smap.unrecoverable_versions()), 0)
2376 self.failUnlessEqual(len(smap.recoverable_versions()), 1)
2377 d.addCallback(_check_smap)
2381 class Exceptions(unittest.TestCase):
2382 def test_repr(self):
2383 nmde = NeedMoreDataError(100, 50, 100)
2384 self.failUnless("NeedMoreDataError" in repr(nmde), repr(nmde))
2385 ucwe = UncoordinatedWriteError()
2386 self.failUnless("UncoordinatedWriteError" in repr(ucwe), repr(ucwe))
2389 class SameKeyGenerator:
2390 def __init__(self, pubkey, privkey):
2391 self.pubkey = pubkey
2392 self.privkey = privkey
2393 def generate(self, keysize=None):
2394 return defer.succeed( (self.pubkey, self.privkey) )
2396 class FirstServerGetsKilled:
2398 def notify(self, retval, wrapper, methname):
2400 wrapper.broken = True
2404 class FirstServerGetsDeleted:
2407 self.silenced = None
2408 def notify(self, retval, wrapper, methname):
2410 # this query will work, but later queries should think the share
2413 self.silenced = wrapper
2415 if wrapper == self.silenced:
2416 assert methname == "slot_testv_and_readv_and_writev"
2420 class Problems(GridTestMixin, unittest.TestCase, testutil.ShouldFailMixin):
2421 def do_publish_surprise(self, version):
2422 self.basedir = "mutable/Problems/test_publish_surprise_%s" % version
2424 nm = self.g.clients[0].nodemaker
2425 d = nm.create_mutable_file(MutableData("contents 1"),
2428 d = defer.succeed(None)
2429 d.addCallback(lambda res: n.get_servermap(MODE_WRITE))
2430 def _got_smap1(smap):
2431 # stash the old state of the file
2433 d.addCallback(_got_smap1)
2434 # then modify the file, leaving the old map untouched
2435 d.addCallback(lambda res: log.msg("starting winning write"))
2436 d.addCallback(lambda res: n.overwrite(MutableData("contents 2")))
2437 # now attempt to modify the file with the old servermap. This
2438 # will look just like an uncoordinated write, in which every
2439 # single share got updated between our mapupdate and our publish
2440 d.addCallback(lambda res: log.msg("starting doomed write"))
2441 d.addCallback(lambda res:
2442 self.shouldFail(UncoordinatedWriteError,
2443 "test_publish_surprise", None,
2445 MutableData("contents 2a"), self.old_map))
2447 d.addCallback(_created)
2450 def test_publish_surprise_sdmf(self):
2451 return self.do_publish_surprise(SDMF_VERSION)
2453 def test_publish_surprise_mdmf(self):
2454 return self.do_publish_surprise(MDMF_VERSION)
2456 def test_retrieve_surprise(self):
2457 self.basedir = "mutable/Problems/test_retrieve_surprise"
2459 nm = self.g.clients[0].nodemaker
2460 d = nm.create_mutable_file(MutableData("contents 1"*4000))
2462 d = defer.succeed(None)
2463 d.addCallback(lambda res: n.get_servermap(MODE_READ))
2464 def _got_smap1(smap):
2465 # stash the old state of the file
2467 d.addCallback(_got_smap1)
2468 # then modify the file, leaving the old map untouched
2469 d.addCallback(lambda res: log.msg("starting winning write"))
2470 d.addCallback(lambda res: n.overwrite(MutableData("contents 2")))
2471 # now attempt to retrieve the old version with the old servermap.
2472 # This will look like someone has changed the file since we
2473 # updated the servermap.
2474 d.addCallback(lambda res: log.msg("starting doomed read"))
2475 d.addCallback(lambda res:
2476 self.shouldFail(NotEnoughSharesError,
2477 "test_retrieve_surprise",
2478 "ran out of servers: have 0 of 1",
2481 self.old_map.best_recoverable_version(),
2484 d.addCallback(_created)
2488 def test_unexpected_shares(self):
2489 # upload the file, take a servermap, shut down one of the servers,
2490 # upload it again (causing shares to appear on a new server), then
2491 # upload using the old servermap. The last upload should fail with an
2492 # UncoordinatedWriteError, because of the shares that didn't appear
2494 self.basedir = "mutable/Problems/test_unexpected_shares"
2496 nm = self.g.clients[0].nodemaker
2497 d = nm.create_mutable_file(MutableData("contents 1"))
2499 d = defer.succeed(None)
2500 d.addCallback(lambda res: n.get_servermap(MODE_WRITE))
2501 def _got_smap1(smap):
2502 # stash the old state of the file
2504 # now shut down one of the servers
2505 peer0 = list(smap.make_sharemap()[0])[0].get_serverid()
2506 self.g.remove_server(peer0)
2507 # then modify the file, leaving the old map untouched
2508 log.msg("starting winning write")
2509 return n.overwrite(MutableData("contents 2"))
2510 d.addCallback(_got_smap1)
2511 # now attempt to modify the file with the old servermap. This
2512 # will look just like an uncoordinated write, in which every
2513 # single share got updated between our mapupdate and our publish
2514 d.addCallback(lambda res: log.msg("starting doomed write"))
2515 d.addCallback(lambda res:
2516 self.shouldFail(UncoordinatedWriteError,
2517 "test_surprise", None,
2519 MutableData("contents 2a"), self.old_map))
2521 d.addCallback(_created)
2524 def test_multiply_placed_shares(self):
2525 self.basedir = "mutable/Problems/test_multiply_placed_shares"
2527 nm = self.g.clients[0].nodemaker
2528 d = nm.create_mutable_file(MutableData("contents 1"))
2529 # remove one of the servers and reupload the file.
2533 servers = self.g.get_all_serverids()
2534 self.ss = self.g.remove_server(servers[len(servers)-1])
2536 new_server = self.g.make_server(len(servers)-1)
2537 self.g.add_server(len(servers)-1, new_server)
2539 return self._node.download_best_version()
2540 d.addCallback(_created)
2541 d.addCallback(lambda data: MutableData(data))
2542 d.addCallback(lambda data: self._node.overwrite(data))
2544 # restore the server we removed earlier, then download+upload
2546 def _overwritten(ign):
2547 self.g.add_server(len(self.g.servers_by_number), self.ss)
2548 return self._node.download_best_version()
2549 d.addCallback(_overwritten)
2550 d.addCallback(lambda data: MutableData(data))
2551 d.addCallback(lambda data: self._node.overwrite(data))
2552 d.addCallback(lambda ignored:
2553 self._node.get_servermap(MODE_CHECK))
2554 def _overwritten_again(smap):
2555 # Make sure that all shares were updated by making sure that
2556 # there aren't any other versions in the sharemap.
2557 self.failUnlessEqual(len(smap.recoverable_versions()), 1)
2558 self.failUnlessEqual(len(smap.unrecoverable_versions()), 0)
2559 d.addCallback(_overwritten_again)
2562 def test_bad_server(self):
2563 # Break one server, then create the file: the initial publish should
2564 # complete with an alternate server. Breaking a second server should
2565 # not prevent an update from succeeding either.
2566 self.basedir = "mutable/Problems/test_bad_server"
2568 nm = self.g.clients[0].nodemaker
2570 # to make sure that one of the initial peers is broken, we have to
2571 # get creative. We create an RSA key and compute its storage-index.
2572 # Then we make a KeyGenerator that always returns that one key, and
2573 # use it to create the mutable file. This will get easier when we can
2574 # use #467 static-server-selection to disable permutation and force
2575 # the choice of server for share[0].
2577 d = nm.key_generator.generate(TEST_RSA_KEY_SIZE)
2578 def _got_key( (pubkey, privkey) ):
2579 nm.key_generator = SameKeyGenerator(pubkey, privkey)
2580 pubkey_s = pubkey.serialize()
2581 privkey_s = privkey.serialize()
2582 u = uri.WriteableSSKFileURI(ssk_writekey_hash(privkey_s),
2583 ssk_pubkey_fingerprint_hash(pubkey_s))
2584 self._storage_index = u.get_storage_index()
2585 d.addCallback(_got_key)
2586 def _break_peer0(res):
2587 si = self._storage_index
2588 servers = nm.storage_broker.get_servers_for_psi(si)
2589 self.g.break_server(servers[0].get_serverid())
2590 self.server1 = servers[1]
2591 d.addCallback(_break_peer0)
2592 # now "create" the file, using the pre-established key, and let the
2593 # initial publish finally happen
2594 d.addCallback(lambda res: nm.create_mutable_file(MutableData("contents 1")))
2595 # that ought to work
2597 d = n.download_best_version()
2598 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 1"))
2599 # now break the second peer
2600 def _break_peer1(res):
2601 self.g.break_server(self.server1.get_serverid())
2602 d.addCallback(_break_peer1)
2603 d.addCallback(lambda res: n.overwrite(MutableData("contents 2")))
2604 # that ought to work too
2605 d.addCallback(lambda res: n.download_best_version())
2606 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 2"))
2607 def _explain_error(f):
2609 if f.check(NotEnoughServersError):
2610 print "first_error:", f.value.first_error
2612 d.addErrback(_explain_error)
2614 d.addCallback(_got_node)
2617 def test_bad_server_overlap(self):
2618 # like test_bad_server, but with no extra unused servers to fall back
2619 # upon. This means that we must re-use a server which we've already
2620 # used. If we don't remember the fact that we sent them one share
2621 # already, we'll mistakenly think we're experiencing an
2622 # UncoordinatedWriteError.
2624 # Break one server, then create the file: the initial publish should
2625 # complete with an alternate server. Breaking a second server should
2626 # not prevent an update from succeeding either.
2627 self.basedir = "mutable/Problems/test_bad_server_overlap"
2629 nm = self.g.clients[0].nodemaker
2630 sb = nm.storage_broker
2632 peerids = [s.get_serverid() for s in sb.get_connected_servers()]
2633 self.g.break_server(peerids[0])
2635 d = nm.create_mutable_file(MutableData("contents 1"))
2637 d = n.download_best_version()
2638 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 1"))
2639 # now break one of the remaining servers
2640 def _break_second_server(res):
2641 self.g.break_server(peerids[1])
2642 d.addCallback(_break_second_server)
2643 d.addCallback(lambda res: n.overwrite(MutableData("contents 2")))
2644 # that ought to work too
2645 d.addCallback(lambda res: n.download_best_version())
2646 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 2"))
2648 d.addCallback(_created)
2651 def test_publish_all_servers_bad(self):
2652 # Break all servers: the publish should fail
2653 self.basedir = "mutable/Problems/test_publish_all_servers_bad"
2655 nm = self.g.clients[0].nodemaker
2656 for s in nm.storage_broker.get_connected_servers():
2657 s.get_rref().broken = True
2659 d = self.shouldFail(NotEnoughServersError,
2660 "test_publish_all_servers_bad",
2661 "ran out of good servers",
2662 nm.create_mutable_file, MutableData("contents"))
2665 def test_publish_no_servers(self):
2666 # no servers at all: the publish should fail
2667 self.basedir = "mutable/Problems/test_publish_no_servers"
2668 self.set_up_grid(num_servers=0)
2669 nm = self.g.clients[0].nodemaker
2671 d = self.shouldFail(NotEnoughServersError,
2672 "test_publish_no_servers",
2673 "Ran out of non-bad servers",
2674 nm.create_mutable_file, MutableData("contents"))
2678 def test_privkey_query_error(self):
2679 # when a servermap is updated with MODE_WRITE, it tries to get the
2680 # privkey. Something might go wrong during this query attempt.
2681 # Exercise the code in _privkey_query_failed which tries to handle
2683 self.basedir = "mutable/Problems/test_privkey_query_error"
2684 self.set_up_grid(num_servers=20)
2685 nm = self.g.clients[0].nodemaker
2686 nm._node_cache = DevNullDictionary() # disable the nodecache
2688 # we need some contents that are large enough to push the privkey out
2689 # of the early part of the file
2690 LARGE = "These are Larger contents" * 2000 # about 50KB
2691 LARGE_uploadable = MutableData(LARGE)
2692 d = nm.create_mutable_file(LARGE_uploadable)
2694 self.uri = n.get_uri()
2695 self.n2 = nm.create_from_cap(self.uri)
2697 # When a mapupdate is performed on a node that doesn't yet know
2698 # the privkey, a short read is sent to a batch of servers, to get
2699 # the verinfo and (hopefully, if the file is short enough) the
2700 # encprivkey. Our file is too large to let this first read
2701 # contain the encprivkey. Each non-encprivkey-bearing response
2702 # that arrives (until the node gets the encprivkey) will trigger
2703 # a second read to specifically read the encprivkey.
2705 # So, to exercise this case:
2706 # 1. notice which server gets a read() call first
2707 # 2. tell that server to start throwing errors
2708 killer = FirstServerGetsKilled()
2709 for s in nm.storage_broker.get_connected_servers():
2710 s.get_rref().post_call_notifier = killer.notify
2711 d.addCallback(_created)
2713 # now we update a servermap from a new node (which doesn't have the
2714 # privkey yet, forcing it to use a separate privkey query). Note that
2715 # the map-update will succeed, since we'll just get a copy from one
2716 # of the other shares.
2717 d.addCallback(lambda res: self.n2.get_servermap(MODE_WRITE))
2721 def test_privkey_query_missing(self):
2722 # like test_privkey_query_error, but the shares are deleted by the
2723 # second query, instead of raising an exception.
2724 self.basedir = "mutable/Problems/test_privkey_query_missing"
2725 self.set_up_grid(num_servers=20)
2726 nm = self.g.clients[0].nodemaker
2727 LARGE = "These are Larger contents" * 2000 # about 50KiB
2728 LARGE_uploadable = MutableData(LARGE)
2729 nm._node_cache = DevNullDictionary() # disable the nodecache
2731 d = nm.create_mutable_file(LARGE_uploadable)
2733 self.uri = n.get_uri()
2734 self.n2 = nm.create_from_cap(self.uri)
2735 deleter = FirstServerGetsDeleted()
2736 for s in nm.storage_broker.get_connected_servers():
2737 s.get_rref().post_call_notifier = deleter.notify
2738 d.addCallback(_created)
2739 d.addCallback(lambda res: self.n2.get_servermap(MODE_WRITE))
2743 def test_block_and_hash_query_error(self):
2744 # This tests for what happens when a query to a remote server
2745 # fails in either the hash validation step or the block getting
2746 # step (because of batching, this is the same actual query).
2747 # We need to have the storage server persist up until the point
2748 # that its prefix is validated, then suddenly die. This
2749 # exercises some exception handling code in Retrieve.
2750 self.basedir = "mutable/Problems/test_block_and_hash_query_error"
2751 self.set_up_grid(num_servers=20)
2752 nm = self.g.clients[0].nodemaker
2753 CONTENTS = "contents" * 2000
2754 CONTENTS_uploadable = MutableData(CONTENTS)
2755 d = nm.create_mutable_file(CONTENTS_uploadable)
2758 d.addCallback(_created)
2759 d.addCallback(lambda ignored:
2760 self._node.get_servermap(MODE_READ))
2761 def _then(servermap):
2762 # we have our servermap. Now we set up the servers like the
2763 # tests above -- the first one that gets a read call should
2764 # start throwing errors, but only after returning its prefix
2765 # for validation. Since we'll download without fetching the
2766 # private key, the next query to the remote server will be
2767 # for either a block and salt or for hashes, either of which
2768 # will exercise the error handling code.
2769 killer = FirstServerGetsKilled()
2770 for s in nm.storage_broker.get_connected_servers():
2771 s.get_rref().post_call_notifier = killer.notify
2772 ver = servermap.best_recoverable_version()
2774 return self._node.download_version(servermap, ver)
2775 d.addCallback(_then)
2776 d.addCallback(lambda data:
2777 self.failUnlessEqual(data, CONTENTS))
2780 def test_1654(self):
2781 # test that the Retrieve object unconditionally verifies the block
2782 # hash tree root for mutable shares. The failure mode is that
2783 # carefully crafted shares can cause undetected corruption (the
2784 # retrieve appears to finish successfully, but the result is
2785 # corrupted). When fixed, these shares always cause a
2786 # CorruptShareError, which results in NotEnoughSharesError in this
2788 self.basedir = "mutable/Problems/test_1654"
2789 self.set_up_grid(num_servers=2)
2790 cap = uri.from_string(TEST_1654_CAP)
2791 si = cap.get_storage_index()
2793 for share, shnum in [(TEST_1654_SH0, 0), (TEST_1654_SH1, 1)]:
2794 sharedata = base64.b64decode(share)
2795 storedir = self.get_serverdir(shnum)
2796 storage_path = os.path.join(storedir, "shares",
2797 storage_index_to_dir(si))
2798 fileutil.make_dirs(storage_path)
2799 fileutil.write(os.path.join(storage_path, "%d" % shnum),
2802 nm = self.g.clients[0].nodemaker
2803 n = nm.create_from_cap(TEST_1654_CAP)
2804 # to exercise the problem correctly, we must ensure that sh0 is
2805 # processed first, and sh1 second. NoNetworkGrid has facilities to
2806 # stall the first request from a single server, but it's not
2807 # currently easy to extend that to stall the second request (mutable
2808 # retrievals will see two: first the mapupdate, then the fetch).
2809 # However, repeated executions of this run without the #1654 fix
2810 # suggests that we're failing reliably even without explicit stalls,
2811 # probably because the servers are queried in a fixed order. So I'm
2812 # ok with relying upon that.
2813 d = self.shouldFail(NotEnoughSharesError, "test #1654 share corruption",
2814 "ran out of servers",
2815 n.download_best_version)
2819 TEST_1654_CAP = "URI:SSK:6jthysgozssjnagqlcxjq7recm:yxawei54fmf2ijkrvs2shs6iey4kpdp6joi7brj2vrva6sp5nf3a"
2821 TEST_1654_SH0 = """\
2822 VGFob2UgbXV0YWJsZSBjb250YWluZXIgdjEKdQlEA46m9s5j6lnzsOHytBTs2JOo
2823 AkWe8058hyrDa8igfBSqZMKO3aDOrFuRVt0ySYZ6oihFqPJRAAAAAAAAB8YAAAAA
2824 AAAJmgAAAAFPNgDkK8brSCzKz6n8HFqzbnAlALvnaB0Qpa1Bjo9jiZdmeMyneHR+
2825 UoJcDb1Ls+lVLeUqP2JitBEXdCzcF/X2YMDlmKb2zmPqWfOw4fK0FOzYk6gCRZ7z
2826 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2827 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2828 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2829 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2830 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2831 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABCDwr
2832 uIlhFlv21pDqyMeA9X1wHp98a1CKY4qfC7gn5exyODAcnhZKHCV18XBerbZLAgIA
2833 AAAAAAAAJgAAAAAAAAAmAAABjwAAAo8AAALTAAAC8wAAAAAAAAMGAAAAAAAAB8Yw
2834 ggEgMA0GCSqGSIb3DQEBAQUAA4IBDQAwggEIAoIBAQCXKMor062nfxHVutMbqNcj
2835 vVC92wXTcQulenNWEX+0huK54igTAG60p0lZ6FpBJ9A+dlStT386bn5I6qe50ky5
2836 CFodQSsQX+1yByMFlzqPDo4rclk/6oVySLypxnt/iBs3FPZ4zruhYXcITc6zaYYU
2837 Xqaw/C86g6M06MWQKsGev7PS3tH7q+dtovWzDgU13Q8PG2whGvGNfxPOmEX4j0wL
2838 FCBavpFnLpo3bJrj27V33HXxpPz3NP+fkaG0pKH03ANd/yYHfGf74dC+eD5dvWBM
2839 DU6fZQN4k/T+cth+qzjS52FPPTY9IHXIb4y+1HryVvxcx6JDifKoOzpFc3SDbBAP
2840 AgERKDjOFxVClH81DF/QkqpP0glOh6uTsFNx8Nes02q0d7iip2WqfG9m2+LmiWy8
2841 Pg7RlQQy2M45gert1EDsH4OI69uxteviZP1Mo0wD6HjmWUbGIQRmsT3DmYEZCCMA
2842 /KjhNmlov2+OhVxIaHwE7aN840IfkGdJ/JssB6Z/Ym3+ou4+jAYKhifPQGrpBVjd
2843 73oH6w9StnoGYIrEEQw8LFc4jnAFYciKlPuo6E6E3zDseE7gwkcOpCtVVksZu6Ii
2844 GQgIV8vjFbNz9M//RMXOBTwKFDiG08IAPh7fv2uKzFis0TFrR7sQcMQ/kZZCLPPi
2845 ECIX95NRoFRlxK/1kZ1+FuuDQgABz9+5yd/pjkVybmvc7Jr70bOVpxvRoI2ZEgh/
2846 +QdxfcwAAm5iDnzPtsVdcbuNkKprfI8N4n+QmUOSMbAJ7M8r1cp4z9+5yd/pjkVy
2847 bmvc7Jr70bOVpxvRoI2ZEgh/+QdxfcxGzRV0shAW86irr5bDQOyyknYk0p2xw2Wn
2848 z6QccyXyobXPOFLO3ZBPnKaE58aaN7x3srQZYUKafet5ZMDX8fsQf2mbxnaeG5NF
2849 eO6wG++WBUo9leddnzKBnRcMGRAtJEjwfKMVPE8SmuTlL6kRc7n8wvY2ygClWlRm
2850 d7o95tZfoO+mexB/DLEpWLtlAiqh8yJ8cWaC5rYz4ZC2+z7QkeKXCHWAN3i4C++u
2851 dfZoD7qWnyAldYTydADwL885dVY7WN6NX9YtQrG3JGrp3wZvFrX5x9Jv7hls0A6l
2852 2xI4NlcSSrgWIjzrGdwQEjIUDyfc7DWroEpJEfIaSnjkeTT0D8WV5NqzWH8UwWoF
2853 wjwDltaQ3Y8O/wJPGBqBAJEob+p6QxvP5T2W1jnOvbgsMZLNDuY6FF1XcuR7yvNF
2854 sXKP6aXMV8BKSlrehFlpBMTu4HvJ1rZlKuxgR1A9njiaKD2U0NitCKMIpIXQxT6L
2855 eZn9M8Ky68m0Zjdw/WCsKz22GTljSM5Nfme32BrW+4G+R55ECwZ1oh08nrnWjXmw
2856 PlSHj2lwpnsuOG2fwJkyMnIIoIUII31VLATeLERD9HfMK8/+uZqJ2PftT2fhHL/u
2857 CDCIdEWSUBBHpA7p8BbgiZKCpYzf+pbS2/EJGL8gQAvSH1atGv/o0BiAd10MzTXC
2858 Xn5xDB1Yh+FtYPYloBGAwmxKieDMnsjy6wp5ovdmOc2y6KBr27DzgEGchLyOxHV4
2859 Q7u0Hkm7Om33ir1TUgK6bdPFL8rGNDOZq/SR4yn4qSsQTPD6Y/HQSK5GzkU4dGLw
2860 tU6GNpu142QE36NfWkoUWHKf1YgIYrlAGJWlj93et54ZGUZGVN7pAspZ+mvoMnDU
2861 Jh46nrQsEJiQz8AqgREck4Fi4S7Rmjh/AhXmzFWFca3YD0BmuYU6fxGTRPZ70eys
2862 LV5qPTmTGpX+bpvufAp0vznkiOdqTn1flnxdslM2AukiD6OwkX1dBH8AvzObhbz0
2863 ABhx3c+cAhAnYhJmsYaAwbpWpp8CM5opmsRgwgaz8f8lxiRfXbrWD8vdd4dm2B9J
2864 jaiGCR8/UXHFBGZhCgLB2S+BNXKynIeP+POGQtMIIERUtwOIKt1KfZ9jZwf/ulJK
2865 fv/VmBPmGu+CHvFIlHAzlxwJeUz8wSltUeeHjADZ9Wag5ESN3R6hsmJL+KL4av5v
2866 DFobNPiNWbc+4H+3wg1R0oK/uTQb8u1S7uWIGVmi5fJ4rVVZ/VKKtHGVwm/8OGKF
2867 tcrJFJcJADFVkgpsqN8UINsMJLxfJRoBgABEWih5DTRwNXK76Ma2LjDBrEvxhw8M
2868 7SLKhi5vH7/Cs7jfLZFgh2T6flDV4VM/EA7CYEHgEb8MFmioFGOmhUpqifkA3SdX
2869 jGi2KuZZ5+O+sHFWXsUjiFPEzUJF+syPEzH1aF5R+F8pkhifeYh0KP6OHd6Sgn8s
2870 TStXB+q0MndBXw5ADp/Jac1DVaSWruVAdjemQ+si1olk8xH+uTMXU7PgV9WkpIiy
2871 4BhnFU9IbCr/m7806c13xfeelaffP2pr7EDdgwz5K89VWCa3k9OSDnMtj2CQXlC7
2872 bQHi/oRGA1aHSn84SIt+HpAfRoVdr4N90bYWmYQNqfKoyWCbEr+dge/GSD1nddAJ
2873 72mXGlqyLyWYuAAAAAA="""
2875 TEST_1654_SH1 = """\
2876 VGFob2UgbXV0YWJsZSBjb250YWluZXIgdjEKdQlEA45R4Y4kuV458rSTGDVTqdzz
2877 9Fig3NQ3LermyD+0XLeqbC7KNgvv6cNzMZ9psQQ3FseYsIR1AAAAAAAAB8YAAAAA
2878 AAAJmgAAAAFPNgDkd/Y9Z+cuKctZk9gjwF8thT+fkmNCsulILsJw5StGHAA1f7uL
2879 MG73c5WBcesHB2epwazfbD3/0UZTlxXWXotywVHhjiS5XjnytJMYNVOp3PP0WKDc
2880 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2881 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2882 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2883 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2884 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2885 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABCDwr
2886 uIlhFlv21pDqyMeA9X1wHp98a1CKY4qfC7gn5exyODAcnhZKHCV18XBerbZLAgIA
2887 AAAAAAAAJgAAAAAAAAAmAAABjwAAAo8AAALTAAAC8wAAAAAAAAMGAAAAAAAAB8Yw
2888 ggEgMA0GCSqGSIb3DQEBAQUAA4IBDQAwggEIAoIBAQCXKMor062nfxHVutMbqNcj
2889 vVC92wXTcQulenNWEX+0huK54igTAG60p0lZ6FpBJ9A+dlStT386bn5I6qe50ky5
2890 CFodQSsQX+1yByMFlzqPDo4rclk/6oVySLypxnt/iBs3FPZ4zruhYXcITc6zaYYU
2891 Xqaw/C86g6M06MWQKsGev7PS3tH7q+dtovWzDgU13Q8PG2whGvGNfxPOmEX4j0wL
2892 FCBavpFnLpo3bJrj27V33HXxpPz3NP+fkaG0pKH03ANd/yYHfGf74dC+eD5dvWBM
2893 DU6fZQN4k/T+cth+qzjS52FPPTY9IHXIb4y+1HryVvxcx6JDifKoOzpFc3SDbBAP
2894 AgERKDjOFxVClH81DF/QkqpP0glOh6uTsFNx8Nes02q0d7iip2WqfG9m2+LmiWy8
2895 Pg7RlQQy2M45gert1EDsH4OI69uxteviZP1Mo0wD6HjmWUbGIQRmsT3DmYEZCCMA
2896 /KjhNmlov2+OhVxIaHwE7aN840IfkGdJ/JssB6Z/Ym3+ou4+jAYKhifPQGrpBVjd
2897 73oH6w9StnoGYIrEEQw8LFc4jnAFYciKlPuo6E6E3zDseE7gwkcOpCtVVksZu6Ii
2898 GQgIV8vjFbNz9M//RMXOBTwKFDiG08IAPh7fv2uKzFis0TFrR7sQcMQ/kZZCLPPi
2899 ECIX95NRoFRlxK/1kZ1+FuuDQgABz9+5yd/pjkVybmvc7Jr70bOVpxvRoI2ZEgh/
2900 +QdxfcwAAm5iDnzPtsVdcbuNkKprfI8N4n+QmUOSMbAJ7M8r1cp40cTBnAw+rMKC
2901 98P4pURrotx116Kd0i3XmMZu81ew57H3Zb73r+syQCXZNOP0xhMDclIt0p2xw2Wn
2902 z6QccyXyobXPOFLO3ZBPnKaE58aaN7x3srQZYUKafet5ZMDX8fsQf2mbxnaeG5NF
2903 eO6wG++WBUo9leddnzKBnRcMGRAtJEjwfKMVPE8SmuTlL6kRc7n8wvY2ygClWlRm
2904 d7o95tZfoO+mexB/DLEpWLtlAiqh8yJ8cWaC5rYz4ZC2+z7QkeKXCHWAN3i4C++u
2905 dfZoD7qWnyAldYTydADwL885dVY7WN6NX9YtQrG3JGrp3wZvFrX5x9Jv7hls0A6l
2906 2xI4NlcSSrgWIjzrGdwQEjIUDyfc7DWroEpJEfIaSnjkeTT0D8WV5NqzWH8UwWoF
2907 wjwDltaQ3Y8O/wJPGBqBAJEob+p6QxvP5T2W1jnOvbgsMZLNDuY6FF1XcuR7yvNF
2908 sXKP6aXMV8BKSlrehFlpBMTu4HvJ1rZlKuxgR1A9njiaKD2U0NitCKMIpIXQxT6L
2909 eZn9M8Ky68m0Zjdw/WCsKz22GTljSM5Nfme32BrW+4G+R55ECwZ1oh08nrnWjXmw
2910 PlSHj2lwpnsuOG2fwJkyMnIIoIUII31VLATeLERD9HfMK8/+uZqJ2PftT2fhHL/u
2911 CDCIdEWSUBBHpA7p8BbgiZKCpYzf+pbS2/EJGL8gQAvSH1atGv/o0BiAd10MzTXC
2912 Xn5xDB1Yh+FtYPYloBGAwmxKieDMnsjy6wp5ovdmOc2y6KBr27DzgEGchLyOxHV4
2913 Q7u0Hkm7Om33ir1TUgK6bdPFL8rGNDOZq/SR4yn4qSsQTPD6Y/HQSK5GzkU4dGLw
2914 tU6GNpu142QE36NfWkoUWHKf1YgIYrlAGJWlj93et54ZGUZGVN7pAspZ+mvoMnDU
2915 Jh46nrQsEJiQz8AqgREck4Fi4S7Rmjh/AhXmzFWFca3YD0BmuYU6fxGTRPZ70eys
2916 LV5qPTmTGpX+bpvufAp0vznkiOdqTn1flnxdslM2AukiD6OwkX1dBH8AvzObhbz0
2917 ABhx3c+cAhAnYhJmsYaAwbpWpp8CM5opmsRgwgaz8f8lxiRfXbrWD8vdd4dm2B9J
2918 jaiGCR8/UXHFBGZhCgLB2S+BNXKynIeP+POGQtMIIERUtwOIKt1KfZ9jZwf/ulJK
2919 fv/VmBPmGu+CHvFIlHAzlxwJeUz8wSltUeeHjADZ9Wag5ESN3R6hsmJL+KL4av5v
2920 DFobNPiNWbc+4H+3wg1R0oK/uTQb8u1S7uWIGVmi5fJ4rVVZ/VKKtHGVwm/8OGKF
2921 tcrJFJcJADFVkgpsqN8UINsMJLxfJRoBgABEWih5DTRwNXK76Ma2LjDBrEvxhw8M
2922 7SLKhi5vH7/Cs7jfLZFgh2T6flDV4VM/EA7CYEHgEb8MFmioFGOmhUpqifkA3SdX
2923 jGi2KuZZ5+O+sHFWXsUjiFPEzUJF+syPEzH1aF5R+F8pkhifeYh0KP6OHd6Sgn8s
2924 TStXB+q0MndBXw5ADp/Jac1DVaSWruVAdjemQ+si1olk8xH+uTMXU7PgV9WkpIiy
2925 4BhnFU9IbCr/m7806c13xfeelaffP2pr7EDdgwz5K89VWCa3k9OSDnMtj2CQXlC7
2926 bQHi/oRGA1aHSn84SIt+HpAfRoVdr4N90bYWmYQNqfKoyWCbEr+dge/GSD1nddAJ
2927 72mXGlqyLyWYuAAAAAA="""
2930 class FileHandle(unittest.TestCase):
2932 self.test_data = "Test Data" * 50000
2933 self.sio = StringIO(self.test_data)
2934 self.uploadable = MutableFileHandle(self.sio)
2937 def test_filehandle_read(self):
2938 self.basedir = "mutable/FileHandle/test_filehandle_read"
2940 for i in xrange(0, len(self.test_data), chunk_size):
2941 data = self.uploadable.read(chunk_size)
2942 data = "".join(data)
2944 end = i + chunk_size
2945 self.failUnlessEqual(data, self.test_data[start:end])
2948 def test_filehandle_get_size(self):
2949 self.basedir = "mutable/FileHandle/test_filehandle_get_size"
2950 actual_size = len(self.test_data)
2951 size = self.uploadable.get_size()
2952 self.failUnlessEqual(size, actual_size)
2955 def test_filehandle_get_size_out_of_order(self):
2956 # We should be able to call get_size whenever we want without
2957 # disturbing the location of the seek pointer.
2959 data = self.uploadable.read(chunk_size)
2960 self.failUnlessEqual("".join(data), self.test_data[:chunk_size])
2963 size = self.uploadable.get_size()
2964 self.failUnlessEqual(size, len(self.test_data))
2966 # Now get more data. We should be right where we left off.
2967 more_data = self.uploadable.read(chunk_size)
2969 end = chunk_size * 2
2970 self.failUnlessEqual("".join(more_data), self.test_data[start:end])
2973 def test_filehandle_file(self):
2974 # Make sure that the MutableFileHandle works on a file as well
2975 # as a StringIO object, since in some cases it will be asked to
2977 self.basedir = self.mktemp()
2978 # necessary? What am I doing wrong here?
2979 os.mkdir(self.basedir)
2980 f_path = os.path.join(self.basedir, "test_file")
2981 f = open(f_path, "w")
2982 f.write(self.test_data)
2984 f = open(f_path, "r")
2986 uploadable = MutableFileHandle(f)
2988 data = uploadable.read(len(self.test_data))
2989 self.failUnlessEqual("".join(data), self.test_data)
2990 size = uploadable.get_size()
2991 self.failUnlessEqual(size, len(self.test_data))
2994 def test_close(self):
2995 # Make sure that the MutableFileHandle closes its handle when
2997 self.uploadable.close()
2998 self.failUnless(self.sio.closed)
3001 class DataHandle(unittest.TestCase):
3003 self.test_data = "Test Data" * 50000
3004 self.uploadable = MutableData(self.test_data)
3007 def test_datahandle_read(self):
3009 for i in xrange(0, len(self.test_data), chunk_size):
3010 data = self.uploadable.read(chunk_size)
3011 data = "".join(data)
3013 end = i + chunk_size
3014 self.failUnlessEqual(data, self.test_data[start:end])
3017 def test_datahandle_get_size(self):
3018 actual_size = len(self.test_data)
3019 size = self.uploadable.get_size()
3020 self.failUnlessEqual(size, actual_size)
3023 def test_datahandle_get_size_out_of_order(self):
3024 # We should be able to call get_size whenever we want without
3025 # disturbing the location of the seek pointer.
3027 data = self.uploadable.read(chunk_size)
3028 self.failUnlessEqual("".join(data), self.test_data[:chunk_size])
3031 size = self.uploadable.get_size()
3032 self.failUnlessEqual(size, len(self.test_data))
3034 # Now get more data. We should be right where we left off.
3035 more_data = self.uploadable.read(chunk_size)
3037 end = chunk_size * 2
3038 self.failUnlessEqual("".join(more_data), self.test_data[start:end])
3041 class Version(GridTestMixin, unittest.TestCase, testutil.ShouldFailMixin, \
3044 GridTestMixin.setUp(self)
3045 self.basedir = self.mktemp()
3047 self.c = self.g.clients[0]
3048 self.nm = self.c.nodemaker
3049 self.data = "test data" * 100000 # about 900 KiB; MDMF
3050 self.small_data = "test data" * 10 # about 90 B; SDMF
3053 def do_upload_mdmf(self):
3054 d = self.nm.create_mutable_file(MutableData(self.data),
3055 version=MDMF_VERSION)
3057 assert isinstance(n, MutableFileNode)
3058 assert n._protocol_version == MDMF_VERSION
3061 d.addCallback(_then)
3064 def do_upload_sdmf(self):
3065 d = self.nm.create_mutable_file(MutableData(self.small_data))
3067 assert isinstance(n, MutableFileNode)
3068 assert n._protocol_version == SDMF_VERSION
3071 d.addCallback(_then)
3074 def do_upload_empty_sdmf(self):
3075 d = self.nm.create_mutable_file(MutableData(""))
3077 assert isinstance(n, MutableFileNode)
3078 self.sdmf_zero_length_node = n
3079 assert n._protocol_version == SDMF_VERSION
3081 d.addCallback(_then)
3084 def do_upload(self):
3085 d = self.do_upload_mdmf()
3086 d.addCallback(lambda ign: self.do_upload_sdmf())
3089 def test_debug(self):
3090 d = self.do_upload_mdmf()
3092 fso = debug.FindSharesOptions()
3093 storage_index = base32.b2a(n.get_storage_index())
3094 fso.si_s = storage_index
3095 fso.nodedirs = [unicode(os.path.dirname(os.path.abspath(storedir)))
3097 in self.iterate_servers()]
3098 fso.stdout = StringIO()
3099 fso.stderr = StringIO()
3100 debug.find_shares(fso)
3101 sharefiles = fso.stdout.getvalue().splitlines()
3102 expected = self.nm.default_encoding_parameters["n"]
3103 self.failUnlessEqual(len(sharefiles), expected)
3105 do = debug.DumpOptions()
3106 do["filename"] = sharefiles[0]
3107 do.stdout = StringIO()
3108 debug.dump_share(do)
3109 output = do.stdout.getvalue()
3110 lines = set(output.splitlines())
3111 self.failUnless("Mutable slot found:" in lines, output)
3112 self.failUnless(" share_type: MDMF" in lines, output)
3113 self.failUnless(" num_extra_leases: 0" in lines, output)
3114 self.failUnless(" MDMF contents:" in lines, output)
3115 self.failUnless(" seqnum: 1" in lines, output)
3116 self.failUnless(" required_shares: 3" in lines, output)
3117 self.failUnless(" total_shares: 10" in lines, output)
3118 self.failUnless(" segsize: 131073" in lines, output)
3119 self.failUnless(" datalen: %d" % len(self.data) in lines, output)
3120 vcap = n.get_verify_cap().to_string()
3121 self.failUnless(" verify-cap: %s" % vcap in lines, output)
3123 cso = debug.CatalogSharesOptions()
3124 cso.nodedirs = fso.nodedirs
3125 cso.stdout = StringIO()
3126 cso.stderr = StringIO()
3127 debug.catalog_shares(cso)
3128 shares = cso.stdout.getvalue().splitlines()
3129 oneshare = shares[0] # all shares should be MDMF
3130 self.failIf(oneshare.startswith("UNKNOWN"), oneshare)
3131 self.failUnless(oneshare.startswith("MDMF"), oneshare)
3132 fields = oneshare.split()
3133 self.failUnlessEqual(fields[0], "MDMF")
3134 self.failUnlessEqual(fields[1], storage_index)
3135 self.failUnlessEqual(fields[2], "3/10")
3136 self.failUnlessEqual(fields[3], "%d" % len(self.data))
3137 self.failUnless(fields[4].startswith("#1:"), fields[3])
3138 # the rest of fields[4] is the roothash, which depends upon
3139 # encryption salts and is not constant. fields[5] is the
3140 # remaining time on the longest lease, which is timing dependent.
3141 # The rest of the line is the quoted pathname to the share.
3142 d.addCallback(_debug)
3145 def test_get_sequence_number(self):
3146 d = self.do_upload()
3147 d.addCallback(lambda ign: self.mdmf_node.get_best_readable_version())
3148 d.addCallback(lambda bv:
3149 self.failUnlessEqual(bv.get_sequence_number(), 1))
3150 d.addCallback(lambda ignored:
3151 self.sdmf_node.get_best_readable_version())
3152 d.addCallback(lambda bv:
3153 self.failUnlessEqual(bv.get_sequence_number(), 1))
3154 # Now update. The sequence number in both cases should be 1 in
3156 def _do_update(ignored):
3157 new_data = MutableData("foo bar baz" * 100000)
3158 new_small_data = MutableData("foo bar baz" * 10)
3159 d1 = self.mdmf_node.overwrite(new_data)
3160 d2 = self.sdmf_node.overwrite(new_small_data)
3161 dl = gatherResults([d1, d2])
3163 d.addCallback(_do_update)
3164 d.addCallback(lambda ignored:
3165 self.mdmf_node.get_best_readable_version())
3166 d.addCallback(lambda bv:
3167 self.failUnlessEqual(bv.get_sequence_number(), 2))
3168 d.addCallback(lambda ignored:
3169 self.sdmf_node.get_best_readable_version())
3170 d.addCallback(lambda bv:
3171 self.failUnlessEqual(bv.get_sequence_number(), 2))
3175 def test_cap_after_upload(self):
3176 # If we create a new mutable file and upload things to it, and
3177 # it's an MDMF file, we should get an MDMF cap back from that
3178 # file and should be able to use that.
3179 # That's essentially what MDMF node is, so just check that.
3180 d = self.do_upload_mdmf()
3182 mdmf_uri = self.mdmf_node.get_uri()
3183 cap = uri.from_string(mdmf_uri)
3184 self.failUnless(isinstance(cap, uri.WriteableMDMFFileURI))
3185 readonly_mdmf_uri = self.mdmf_node.get_readonly_uri()
3186 cap = uri.from_string(readonly_mdmf_uri)
3187 self.failUnless(isinstance(cap, uri.ReadonlyMDMFFileURI))
3188 d.addCallback(_then)
3191 def test_mutable_version(self):
3192 # assert that getting parameters from the IMutableVersion object
3193 # gives us the same data as getting them from the filenode itself
3194 d = self.do_upload()
3195 d.addCallback(lambda ign: self.mdmf_node.get_best_mutable_version())
3196 def _check_mdmf(bv):
3198 self.failUnlessEqual(bv.get_writekey(), n.get_writekey())
3199 self.failUnlessEqual(bv.get_storage_index(), n.get_storage_index())
3200 self.failIf(bv.is_readonly())
3201 d.addCallback(_check_mdmf)
3202 d.addCallback(lambda ign: self.sdmf_node.get_best_mutable_version())
3203 def _check_sdmf(bv):
3205 self.failUnlessEqual(bv.get_writekey(), n.get_writekey())
3206 self.failUnlessEqual(bv.get_storage_index(), n.get_storage_index())
3207 self.failIf(bv.is_readonly())
3208 d.addCallback(_check_sdmf)
3212 def test_get_readonly_version(self):
3213 d = self.do_upload()
3214 d.addCallback(lambda ign: self.mdmf_node.get_best_readable_version())
3215 d.addCallback(lambda bv: self.failUnless(bv.is_readonly()))
3217 # Attempting to get a mutable version of a mutable file from a
3218 # filenode initialized with a readcap should return a readonly
3219 # version of that same node.
3220 d.addCallback(lambda ign: self.mdmf_node.get_readonly())
3221 d.addCallback(lambda ro: ro.get_best_mutable_version())
3222 d.addCallback(lambda v: self.failUnless(v.is_readonly()))
3224 d.addCallback(lambda ign: self.sdmf_node.get_best_readable_version())
3225 d.addCallback(lambda bv: self.failUnless(bv.is_readonly()))
3227 d.addCallback(lambda ign: self.sdmf_node.get_readonly())
3228 d.addCallback(lambda ro: ro.get_best_mutable_version())
3229 d.addCallback(lambda v: self.failUnless(v.is_readonly()))
3233 def test_toplevel_overwrite(self):
3234 new_data = MutableData("foo bar baz" * 100000)
3235 new_small_data = MutableData("foo bar baz" * 10)
3236 d = self.do_upload()
3237 d.addCallback(lambda ign: self.mdmf_node.overwrite(new_data))
3238 d.addCallback(lambda ignored:
3239 self.mdmf_node.download_best_version())
3240 d.addCallback(lambda data:
3241 self.failUnlessEqual(data, "foo bar baz" * 100000))
3242 d.addCallback(lambda ignored:
3243 self.sdmf_node.overwrite(new_small_data))
3244 d.addCallback(lambda ignored:
3245 self.sdmf_node.download_best_version())
3246 d.addCallback(lambda data:
3247 self.failUnlessEqual(data, "foo bar baz" * 10))
3251 def test_toplevel_modify(self):
3252 d = self.do_upload()
3253 def modifier(old_contents, servermap, first_time):
3254 return old_contents + "modified"
3255 d.addCallback(lambda ign: self.mdmf_node.modify(modifier))
3256 d.addCallback(lambda ignored:
3257 self.mdmf_node.download_best_version())
3258 d.addCallback(lambda data:
3259 self.failUnlessIn("modified", data))
3260 d.addCallback(lambda ignored:
3261 self.sdmf_node.modify(modifier))
3262 d.addCallback(lambda ignored:
3263 self.sdmf_node.download_best_version())
3264 d.addCallback(lambda data:
3265 self.failUnlessIn("modified", data))
3269 def test_version_modify(self):
3270 # TODO: When we can publish multiple versions, alter this test
3271 # to modify a version other than the best usable version, then
3272 # test to see that the best recoverable version is that.
3273 d = self.do_upload()
3274 def modifier(old_contents, servermap, first_time):
3275 return old_contents + "modified"
3276 d.addCallback(lambda ign: self.mdmf_node.modify(modifier))
3277 d.addCallback(lambda ignored:
3278 self.mdmf_node.download_best_version())
3279 d.addCallback(lambda data:
3280 self.failUnlessIn("modified", data))
3281 d.addCallback(lambda ignored:
3282 self.sdmf_node.modify(modifier))
3283 d.addCallback(lambda ignored:
3284 self.sdmf_node.download_best_version())
3285 d.addCallback(lambda data:
3286 self.failUnlessIn("modified", data))
3290 def test_download_version(self):
3291 d = self.publish_multiple()
3292 # We want to have two recoverable versions on the grid.
3293 d.addCallback(lambda res:
3294 self._set_versions({0:0,2:0,4:0,6:0,8:0,
3295 1:1,3:1,5:1,7:1,9:1}))
3296 # Now try to download each version. We should get the plaintext
3297 # associated with that version.
3298 d.addCallback(lambda ignored:
3299 self._fn.get_servermap(mode=MODE_READ))
3300 def _got_servermap(smap):
3301 versions = smap.recoverable_versions()
3302 assert len(versions) == 2
3304 self.servermap = smap
3305 self.version1, self.version2 = versions
3306 assert self.version1 != self.version2
3308 self.version1_seqnum = self.version1[0]
3309 self.version2_seqnum = self.version2[0]
3310 self.version1_index = self.version1_seqnum - 1
3311 self.version2_index = self.version2_seqnum - 1
3313 d.addCallback(_got_servermap)
3314 d.addCallback(lambda ignored:
3315 self._fn.download_version(self.servermap, self.version1))
3316 d.addCallback(lambda results:
3317 self.failUnlessEqual(self.CONTENTS[self.version1_index],
3319 d.addCallback(lambda ignored:
3320 self._fn.download_version(self.servermap, self.version2))
3321 d.addCallback(lambda results:
3322 self.failUnlessEqual(self.CONTENTS[self.version2_index],
3327 def test_download_nonexistent_version(self):
3328 d = self.do_upload_mdmf()
3329 d.addCallback(lambda ign: self.mdmf_node.get_servermap(mode=MODE_WRITE))
3330 def _set_servermap(servermap):
3331 self.servermap = servermap
3332 d.addCallback(_set_servermap)
3333 d.addCallback(lambda ignored:
3334 self.shouldFail(UnrecoverableFileError, "nonexistent version",
3336 self.mdmf_node.download_version, self.servermap,
3341 def test_partial_read(self):
3342 d = self.do_upload_mdmf()
3343 d.addCallback(lambda ign: self.mdmf_node.get_best_readable_version())
3344 modes = [("start_on_segment_boundary",
3345 mathutil.next_multiple(128 * 1024, 3), 50),
3346 ("ending_one_byte_after_segment_boundary",
3347 mathutil.next_multiple(128 * 1024, 3)-50, 51),
3348 ("zero_length_at_start", 0, 0),
3349 ("zero_length_in_middle", 50, 0),
3350 ("zero_length_at_segment_boundary",
3351 mathutil.next_multiple(128 * 1024, 3), 0),
3353 for (name, offset, length) in modes:
3354 d.addCallback(self._do_partial_read, name, offset, length)
3355 # then read only a few bytes at a time, and see that the results are
3357 def _read_data(version):
3358 c = consumer.MemoryConsumer()
3359 d2 = defer.succeed(None)
3360 for i in xrange(0, len(self.data), 10000):
3361 d2.addCallback(lambda ignored, i=i: version.read(c, i, 10000))
3362 d2.addCallback(lambda ignored:
3363 self.failUnlessEqual(self.data, "".join(c.chunks)))
3365 d.addCallback(_read_data)
3367 def _do_partial_read(self, version, name, offset, length):
3368 c = consumer.MemoryConsumer()
3369 d = version.read(c, offset, length)
3370 expected = self.data[offset:offset+length]
3371 d.addCallback(lambda ignored: "".join(c.chunks))
3372 def _check(results):
3373 if results != expected:
3375 print "got: %s ... %s" % (results[:20], results[-20:])
3376 print "exp: %s ... %s" % (expected[:20], expected[-20:])
3377 self.fail("results[%s] != expected" % name)
3378 return version # daisy-chained to next call
3379 d.addCallback(_check)
3383 def _test_read_and_download(self, node, expected):
3384 d = node.get_best_readable_version()
3385 def _read_data(version):
3386 c = consumer.MemoryConsumer()
3387 d2 = defer.succeed(None)
3388 d2.addCallback(lambda ignored: version.read(c))
3389 d2.addCallback(lambda ignored:
3390 self.failUnlessEqual(expected, "".join(c.chunks)))
3392 d.addCallback(_read_data)
3393 d.addCallback(lambda ignored: node.download_best_version())
3394 d.addCallback(lambda data: self.failUnlessEqual(expected, data))
3397 def test_read_and_download_mdmf(self):
3398 d = self.do_upload_mdmf()
3399 d.addCallback(self._test_read_and_download, self.data)
3402 def test_read_and_download_sdmf(self):
3403 d = self.do_upload_sdmf()
3404 d.addCallback(self._test_read_and_download, self.small_data)
3407 def test_read_and_download_sdmf_zero_length(self):
3408 d = self.do_upload_empty_sdmf()
3409 d.addCallback(self._test_read_and_download, "")
3413 class Update(GridTestMixin, unittest.TestCase, testutil.ShouldFailMixin):
3414 timeout = 400 # these tests are too big, 120s is not enough on slow
3417 GridTestMixin.setUp(self)
3418 self.basedir = self.mktemp()
3420 self.c = self.g.clients[0]
3421 self.nm = self.c.nodemaker
3422 self.data = "testdata " * 100000 # about 900 KiB; MDMF
3423 self.small_data = "test data" * 10 # about 90 B; SDMF
3426 def do_upload_sdmf(self):
3427 d = self.nm.create_mutable_file(MutableData(self.small_data))
3429 assert isinstance(n, MutableFileNode)
3431 # Make SDMF node that has 255 shares.
3432 self.nm.default_encoding_parameters['n'] = 255
3433 self.nm.default_encoding_parameters['k'] = 127
3434 return self.nm.create_mutable_file(MutableData(self.small_data))
3435 d.addCallback(_then)
3437 assert isinstance(n, MutableFileNode)
3438 self.sdmf_max_shares_node = n
3439 d.addCallback(_then2)
3442 def do_upload_mdmf(self):
3443 d = self.nm.create_mutable_file(MutableData(self.data),
3444 version=MDMF_VERSION)
3446 assert isinstance(n, MutableFileNode)
3448 # Make MDMF node that has 255 shares.
3449 self.nm.default_encoding_parameters['n'] = 255
3450 self.nm.default_encoding_parameters['k'] = 127
3451 return self.nm.create_mutable_file(MutableData(self.data),
3452 version=MDMF_VERSION)
3453 d.addCallback(_then)
3455 assert isinstance(n, MutableFileNode)
3456 self.mdmf_max_shares_node = n
3457 d.addCallback(_then2)
3460 def _test_replace(self, offset, new_data):
3461 expected = self.data[:offset]+new_data+self.data[offset+len(new_data):]
3462 d0 = self.do_upload_mdmf()
3464 d = defer.succeed(None)
3465 for node in (self.mdmf_node, self.mdmf_max_shares_node):
3466 # close over 'node'.
3467 d.addCallback(lambda ign, node=node:
3468 node.get_best_mutable_version())
3469 d.addCallback(lambda mv:
3470 mv.update(MutableData(new_data), offset))
3471 d.addCallback(lambda ign, node=node:
3472 node.download_best_version())
3473 def _check(results):
3474 if results != expected:
3476 print "got: %s ... %s" % (results[:20], results[-20:])
3477 print "exp: %s ... %s" % (expected[:20], expected[-20:])
3478 self.fail("results != expected")
3479 d.addCallback(_check)
3481 d0.addCallback(_run)
3484 def test_append(self):
3485 # We should be able to append data to a mutable file and get
3487 return self._test_replace(len(self.data), "appended")
3489 def test_replace_middle(self):
3490 # We should be able to replace data in the middle of a mutable
3491 # file and get what we expect back.
3492 return self._test_replace(100, "replaced")
3494 def test_replace_beginning(self):
3495 # We should be able to replace data at the beginning of the file
3496 # without truncating the file
3497 return self._test_replace(0, "beginning")
3499 def test_replace_segstart1(self):
3500 return self._test_replace(128*1024+1, "NNNN")
3502 def test_replace_zero_length_beginning(self):
3503 return self._test_replace(0, "")
3505 def test_replace_zero_length_middle(self):
3506 return self._test_replace(50, "")
3508 def test_replace_zero_length_segstart1(self):
3509 return self._test_replace(128*1024+1, "")
3511 def test_replace_and_extend(self):
3512 # We should be able to replace data in the middle of a mutable
3513 # file and extend that mutable file and get what we expect.
3514 return self._test_replace(100, "modified " * 100000)
3517 def _check_differences(self, got, expected):
3518 # displaying arbitrary file corruption is tricky for a
3519 # 1MB file of repeating data,, so look for likely places
3520 # with problems and display them separately
3521 gotmods = [mo.span() for mo in re.finditer('([A-Z]+)', got)]
3522 expmods = [mo.span() for mo in re.finditer('([A-Z]+)', expected)]
3523 gotspans = ["%d:%d=%s" % (start,end,got[start:end])
3524 for (start,end) in gotmods]
3525 expspans = ["%d:%d=%s" % (start,end,expected[start:end])
3526 for (start,end) in expmods]
3527 #print "expecting: %s" % expspans
3531 print "differences:"
3532 for segnum in range(len(expected)//SEGSIZE):
3533 start = segnum * SEGSIZE
3534 end = (segnum+1) * SEGSIZE
3535 got_ends = "%s .. %s" % (got[start:start+20], got[end-20:end])
3536 exp_ends = "%s .. %s" % (expected[start:start+20], expected[end-20:end])
3537 if got_ends != exp_ends:
3538 print "expected[%d]: %s" % (start, exp_ends)
3539 print "got [%d]: %s" % (start, got_ends)
3540 if expspans != gotspans:
3541 print "expected: %s" % expspans
3542 print "got : %s" % gotspans
3543 open("EXPECTED","wb").write(expected)
3544 open("GOT","wb").write(got)
3545 print "wrote data to EXPECTED and GOT"
3546 self.fail("didn't get expected data")
3549 def test_replace_locations(self):
3550 # exercise fencepost conditions
3552 suspects = range(SEGSIZE-3, SEGSIZE+1)+range(2*SEGSIZE-3, 2*SEGSIZE+1)
3553 letters = iter("ABCDEFGHIJKLMNOPQRSTUVWXYZ")
3554 d0 = self.do_upload_mdmf()
3556 expected = self.data
3557 d = defer.succeed(None)
3558 for offset in suspects:
3559 new_data = letters.next()*2 # "AA", then "BB", etc
3560 expected = expected[:offset]+new_data+expected[offset+2:]
3561 d.addCallback(lambda ign:
3562 self.mdmf_node.get_best_mutable_version())
3563 def _modify(mv, offset=offset, new_data=new_data):
3564 # close over 'offset','new_data'
3565 md = MutableData(new_data)
3566 return mv.update(md, offset)
3567 d.addCallback(_modify)
3568 d.addCallback(lambda ignored:
3569 self.mdmf_node.download_best_version())
3570 d.addCallback(self._check_differences, expected)
3572 d0.addCallback(_run)
3575 def test_replace_locations_max_shares(self):
3576 # exercise fencepost conditions
3578 suspects = range(SEGSIZE-3, SEGSIZE+1)+range(2*SEGSIZE-3, 2*SEGSIZE+1)
3579 letters = iter("ABCDEFGHIJKLMNOPQRSTUVWXYZ")
3580 d0 = self.do_upload_mdmf()
3582 expected = self.data
3583 d = defer.succeed(None)
3584 for offset in suspects:
3585 new_data = letters.next()*2 # "AA", then "BB", etc
3586 expected = expected[:offset]+new_data+expected[offset+2:]
3587 d.addCallback(lambda ign:
3588 self.mdmf_max_shares_node.get_best_mutable_version())
3589 def _modify(mv, offset=offset, new_data=new_data):
3590 # close over 'offset','new_data'
3591 md = MutableData(new_data)
3592 return mv.update(md, offset)
3593 d.addCallback(_modify)
3594 d.addCallback(lambda ignored:
3595 self.mdmf_max_shares_node.download_best_version())
3596 d.addCallback(self._check_differences, expected)
3598 d0.addCallback(_run)
3602 def test_append_power_of_two(self):
3603 # If we attempt to extend a mutable file so that its segment
3604 # count crosses a power-of-two boundary, the update operation
3605 # should know how to reencode the file.
3607 # Note that the data populating self.mdmf_node is about 900 KiB
3608 # long -- this is 7 segments in the default segment size. So we
3609 # need to add 2 segments worth of data to push it over a
3610 # power-of-two boundary.
3611 segment = "a" * DEFAULT_MAX_SEGMENT_SIZE
3612 new_data = self.data + (segment * 2)
3613 d0 = self.do_upload_mdmf()
3615 d = defer.succeed(None)
3616 for node in (self.mdmf_node, self.mdmf_max_shares_node):
3617 # close over 'node'.
3618 d.addCallback(lambda ign, node=node:
3619 node.get_best_mutable_version())
3620 d.addCallback(lambda mv:
3621 mv.update(MutableData(segment * 2), len(self.data)))
3622 d.addCallback(lambda ign, node=node:
3623 node.download_best_version())
3624 d.addCallback(lambda results:
3625 self.failUnlessEqual(results, new_data))
3627 d0.addCallback(_run)
3630 def test_update_sdmf(self):
3631 # Running update on a single-segment file should still work.
3632 new_data = self.small_data + "appended"
3633 d0 = self.do_upload_sdmf()
3635 d = defer.succeed(None)
3636 for node in (self.sdmf_node, self.sdmf_max_shares_node):
3637 # close over 'node'.
3638 d.addCallback(lambda ign, node=node:
3639 node.get_best_mutable_version())
3640 d.addCallback(lambda mv:
3641 mv.update(MutableData("appended"), len(self.small_data)))
3642 d.addCallback(lambda ign, node=node:
3643 node.download_best_version())
3644 d.addCallback(lambda results:
3645 self.failUnlessEqual(results, new_data))
3647 d0.addCallback(_run)
3650 def test_replace_in_last_segment(self):
3651 # The wrapper should know how to handle the tail segment
3653 replace_offset = len(self.data) - 100
3654 new_data = self.data[:replace_offset] + "replaced"
3655 rest_offset = replace_offset + len("replaced")
3656 new_data += self.data[rest_offset:]
3657 d0 = self.do_upload_mdmf()
3659 d = defer.succeed(None)
3660 for node in (self.mdmf_node, self.mdmf_max_shares_node):
3661 # close over 'node'.
3662 d.addCallback(lambda ign, node=node:
3663 node.get_best_mutable_version())
3664 d.addCallback(lambda mv:
3665 mv.update(MutableData("replaced"), replace_offset))
3666 d.addCallback(lambda ign, node=node:
3667 node.download_best_version())
3668 d.addCallback(lambda results:
3669 self.failUnlessEqual(results, new_data))
3671 d0.addCallback(_run)
3674 def test_multiple_segment_replace(self):
3675 replace_offset = 2 * DEFAULT_MAX_SEGMENT_SIZE
3676 new_data = self.data[:replace_offset]
3677 new_segment = "a" * DEFAULT_MAX_SEGMENT_SIZE
3678 new_data += 2 * new_segment
3679 new_data += "replaced"
3680 rest_offset = len(new_data)
3681 new_data += self.data[rest_offset:]
3682 d0 = self.do_upload_mdmf()
3684 d = defer.succeed(None)
3685 for node in (self.mdmf_node, self.mdmf_max_shares_node):
3686 # close over 'node'.
3687 d.addCallback(lambda ign, node=node:
3688 node.get_best_mutable_version())
3689 d.addCallback(lambda mv:
3690 mv.update(MutableData((2 * new_segment) + "replaced"),
3692 d.addCallback(lambda ignored, node=node:
3693 node.download_best_version())
3694 d.addCallback(lambda results:
3695 self.failUnlessEqual(results, new_data))
3697 d0.addCallback(_run)
3700 class Interoperability(GridTestMixin, unittest.TestCase, testutil.ShouldFailMixin):
3701 sdmf_old_shares = {}
3702 sdmf_old_shares[0] = "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"
3703 sdmf_old_shares[1] = "VGFob2UgbXV0YWJsZSBjb250YWluZXIgdjEKdQlEA47ESLbTdKdpLJXCpBxd5OH239tl5hvAiz1dvGdE5rIOpf8cbfxbPcwNF+Y5dM92uBVbmV6KAAAAAAAAB/wAAAAAAAAJ0AAAAAFOWSw7jSx7WXzaMpdleJYXwYsRCV82jNA5oex9m2YhXSnb2POh+vvC1LE1NAfRc9GOb2zQG84Xdsx1Jub2brEeKkyt0sRIttN0p2kslcKkHF3k4fbf22XmAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABamJprL6ecrsOoFKdrXUmWveLq8nzEGDOjFnyK9detI3noX3uyK2MwSnFdAfyN0tuAwoAAAAAAAAAFQAAAAAAAAAVAAABjwAAAo8AAAMXAAADNwAAAAAAAAM+AAAAAAAAB/wwggEgMA0GCSqGSIb3DQEBAQUAA4IBDQAwggEIAoIBAQC1IkainlJF12IBXBQdpRK1zXB7a26vuEYqRmQM09YjC6sQjCs0F2ICk8n9m/2Kw4l16eIEboB2Au9pODCE+u/dEAakEFh4qidTMn61rbGUbsLK8xzuWNW22ezzz9/nPia0HDrulXt51/FYtfnnAuD1RJGXJv/8tDllE9FL/18TzlH4WuB6Fp8FTgv7QdbZAfWJHDGFIpVCJr1XxOCsSZNFJIqGwZnD2lsChiWw5OJDbKd8otqN1hIbfHyMyfMOJ/BzRzvZXaUt4Dv5nf93EmQDWClxShRwpuX/NkZ5B2K9OFonFTbOCexm/MjMAdCBqebKKaiHFkiknUCn9eJQpZ5bAgERgV50VKj+AVTDfgTpqfO2vfo4wrufi6ZBb8QV7hllhUFBjYogQ9C96dnS7skv0s+cqFuUjwMILr5/rsbEmEMGvl0T0ytyAbtlXuowEFVj/YORNknM4yjY72YUtEPTlMpk0Cis7aIgTvu5qWMPER26PMApZuRqiwRsGIkaJIvOVOTHHjFYe3/YzdMkc7OZtqRMfQLtwVl2/zKQQV8b/a9vaT6q3mRLRd4P3esaAFe/+7sR/t+9tmB+a8kxtKM6kmaVQJMbXJZ4aoHGfeLX0m35Rcvu2Bmph7QfSDjk/eaE3q55zYSoGWShmlhlw4Kwg84sMuhmcVhLvo0LovR8bKmbdgACtTh7+7gs/l5w1lOkgbF6w7rkXLNslK7L2KYF4SPFLUcABOOLy8EETxh7h7/z9d62EiPu9CNpRrCOLxUhn+JUS+DuAAhgcAb/adrQFrhlrRNoRpvjDuxmFebA4F0qCyqWssm61AAP7FHJWQoU87gQFNsy015vnBvCBYTudJcuhMvwweODbTD8Rfh4L/X6EY5D+HgSIpSSrF2x/N1w+UO93XVIZZnRUeePDXEwhqYDE0Wua7Lx6Bnad5n91qmHAnwSEJE5YIhQM634omd6cq9Wk4seJCUIn+ucoknrpxp0IR9QMxpKSMRHRUg2K8ZegnY3YqFunRZKCfsq9ufQEKgjZN12AFqi551KPBdn4/3V5HK6xTv0P4robSsE/BvuIfByvRf/W7ZrDx+CFC4EEcsBOACOZCrkhhqd5TkYKbe9RA+vs56+9N5qZGurkxcoKviiyEncxvTuShD65DK/6x6kMDMgQv/EdZDI3x9GtHTnRBYXwDGnPJ19w+q2zC3e2XarbxTGYQIPEC5mYx0gAA0sbjf018NGfwBhl6SB54iGsa8uLvR3jHv6OSRJgwxL6j7P0Ts4Hv2EtO12P0Lv21pwi3JC1O/WviSrKCvrQD5lMHL9Uym3hwFi2zu0mqwZvxOAbGy7kfOPXkLYKOHTZLthzKj3PsdjeceWBfYIvPGKYcd6wDr36d1aXSYS4IWeApTS2AQ2lu0DUcgSefAvsA8NkgOklvJY1cjTMSg6j6cxQo48Bvl8RAWGLbr4h2S/8KwDGxwLsSv0Gop/gnFc3GzCsmL0EkEyHHWkCA8YRXCghfW80KLDV495ff7yF5oiwK56GniqowZ3RG9Jxp5MXoJQgsLV1VMQFMAmsY69yz8eoxRH3wl9L0dMyndLulhWWzNwPMQ2I0yAWdzA/pksVmwTJTFenB3MHCiWc5rEwJ3yofe6NZZnZQrYyL9r1TNnVwfTwRUiykPiLSk4x9Mi6DX7RamDAxc8u3gDVfjPsTOTagBOEGUWlGAL54KE/E6sgCQ5DEAt12chk8AxbjBFLPgV+/idrzS0lZHOL+IVBI9D0i3Bq1yZcSIqcjZB0M3IbxbPm4gLAYOWEiTUN2ecsEHHg9nt6rhgffVoqSbCCFPbpC0xf7WOC3+BQORIZECOCC7cUAciXq3xn+GuxpFE40RWRJeKAK7bBQ21X89ABIXlQFkFddZ9kRvlZ2Pnl0oeF+2pjnZu0Yc2czNfZEQF2P7BKIdLrgMgxG89snxAY8qAYTCKyQw6xTG87wkjDcpy1wzsZLP3WsOuO7cAm7b27xU0jRKq8Cw4d1hDoyRG+RdS53F8RFJzVMaNNYgxU2tfRwUvXpTRXiOheeRVvh25+YGVnjakUXjx/dSDnOw4ETHGHD+7styDkeSfc3BdSZxswzc6OehgMI+xsCxeeRym15QUm9hxvg8X7Bfz/0WulgFwgzrm11TVynZYOmvyHpiZKoqQyQyKahIrfhwuchCr7lMsZ4a+umIkNkKxCLZnI+T7jd+eGFMgKItjz3kTTxRl3IhaJG3LbPmwRUJynMxQKdMi4Uf0qy0U7+i8hIJ9m50QXc+3tw2bwDSbx22XYJ9Wf14gxx5G5SPTb1JVCbhe4fxNt91xIxCow2zk62tzbYfRe6dfmDmgYHkv2PIEtMJZK8iKLDjFfu2ZUxsKT2A5g1q17og6o9MeXeuFS3mzJXJYFQZd+3UzlFR9qwkFkby9mg5y4XSeMvRLOHPt/H/r5SpEqBE6a9MadZYt61FBV152CUEzd43ihXtrAa0XH9HdsiySBcWI1SpM3mv9rRP0DiLjMUzHw/K1D8TE2f07zW4t/9kvE11tFj/NpICixQAAAAA="
3704 sdmf_old_shares[2] = "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"
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3709 sdmf_old_shares[7] = "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"
3710 sdmf_old_shares[8] = "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"
3711 sdmf_old_shares[9] = "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"
3712 sdmf_old_cap = "URI:SSK:gmjgofw6gan57gwpsow6gtrz3e:5adm6fayxmu3e4lkmfvt6lkkfix34ai2wop2ioqr4bgvvhiol3kq"
3713 sdmf_old_contents = "This is a test file.\n"
3714 def copy_sdmf_shares(self):
3715 # We'll basically be short-circuiting the upload process.
3716 servernums = self.g.servers_by_number.keys()
3717 assert len(servernums) == 10
3719 assignments = zip(self.sdmf_old_shares.keys(), servernums)
3720 # Get the storage index.
3721 cap = uri.from_string(self.sdmf_old_cap)
3722 si = cap.get_storage_index()
3724 # Now execute each assignment by writing the storage.
3725 for (share, servernum) in assignments:
3726 sharedata = base64.b64decode(self.sdmf_old_shares[share])
3727 storedir = self.get_serverdir(servernum)
3728 storage_path = os.path.join(storedir, "shares",
3729 storage_index_to_dir(si))
3730 fileutil.make_dirs(storage_path)
3731 fileutil.write(os.path.join(storage_path, "%d" % share),
3733 # ...and verify that the shares are there.
3734 shares = self.find_uri_shares(self.sdmf_old_cap)
3735 assert len(shares) == 10
3737 def test_new_downloader_can_read_old_shares(self):
3738 self.basedir = "mutable/Interoperability/new_downloader_can_read_old_shares"
3740 self.copy_sdmf_shares()
3741 nm = self.g.clients[0].nodemaker
3742 n = nm.create_from_cap(self.sdmf_old_cap)
3743 d = n.download_best_version()
3744 d.addCallback(self.failUnlessEqual, self.sdmf_old_contents)
3747 class DifferentEncoding(unittest.TestCase):
3749 self._storage = s = FakeStorage()
3750 self.nodemaker = make_nodemaker(s)
3752 def test_filenode(self):
3753 # create a file with 3-of-20, then modify it with a client configured
3754 # to do 3-of-10. #1510 tracks a failure here
3755 self.nodemaker.default_encoding_parameters["n"] = 20
3756 d = self.nodemaker.create_mutable_file("old contents")
3758 filecap = n.get_cap().to_string()
3759 del n # we want a new object, not the cached one
3760 self.nodemaker.default_encoding_parameters["n"] = 10
3761 n2 = self.nodemaker.create_from_cap(filecap)
3763 d.addCallback(_created)
3764 def modifier(old_contents, servermap, first_time):
3765 return "new contents"
3766 d.addCallback(lambda n: n.modify(modifier))