2 from cStringIO import StringIO
4 from twisted.trial import unittest
5 from twisted.internet import defer, reactor
7 from allmydata import uri, client
8 from allmydata.nodemaker import NodeMaker
9 from allmydata.util import base32, consumer, fileutil, mathutil
10 from allmydata.util.fileutil import abspath_expanduser_unicode
11 from allmydata.util.hashutil import tagged_hash, ssk_writekey_hash, \
12 ssk_pubkey_fingerprint_hash
13 from allmydata.util.consumer import MemoryConsumer
14 from allmydata.util.deferredutil import gatherResults
15 from allmydata.interfaces import IRepairResults, ICheckAndRepairResults, \
16 NotEnoughSharesError, SDMF_VERSION, MDMF_VERSION, DownloadStopped
17 from allmydata.monitor import Monitor
18 from allmydata.test.common import ShouldFailMixin
19 from allmydata.test.no_network import GridTestMixin
20 from foolscap.api import eventually, fireEventually
21 from foolscap.logging import log
22 from allmydata.storage_client import StorageFarmBroker
23 from allmydata.storage.common import storage_index_to_dir
24 from allmydata.scripts import debug
26 from allmydata.mutable.filenode import MutableFileNode, BackoffAgent
27 from allmydata.mutable.common import \
28 MODE_CHECK, MODE_ANYTHING, MODE_WRITE, MODE_READ, \
29 NeedMoreDataError, UnrecoverableFileError, UncoordinatedWriteError, \
30 NotEnoughServersError, CorruptShareError
31 from allmydata.mutable.retrieve import Retrieve
32 from allmydata.mutable.publish import Publish, MutableFileHandle, \
34 DEFAULT_MAX_SEGMENT_SIZE
35 from allmydata.mutable.servermap import ServerMap, ServermapUpdater
36 from allmydata.mutable.layout import unpack_header, MDMFSlotReadProxy
37 from allmydata.mutable.repairer import MustForceRepairError
39 import allmydata.test.common_util as testutil
40 from allmydata.test.common import TEST_RSA_KEY_SIZE
41 from allmydata.test.test_download import PausingConsumer, \
42 PausingAndStoppingConsumer, StoppingConsumer, \
43 ImmediatelyStoppingConsumer
45 def eventuaaaaaly(res=None):
46 d = fireEventually(res)
47 d.addCallback(fireEventually)
48 d.addCallback(fireEventually)
52 # this "FakeStorage" exists to put the share data in RAM and avoid using real
53 # network connections, both to speed up the tests and to reduce the amount of
54 # non-mutable.py code being exercised.
57 # this class replaces the collection of storage servers, allowing the
58 # tests to examine and manipulate the published shares. It also lets us
59 # control the order in which read queries are answered, to exercise more
60 # of the error-handling code in Retrieve .
62 # Note that we ignore the storage index: this FakeStorage instance can
63 # only be used for a single storage index.
68 # _sequence is used to cause the responses to occur in a specific
69 # order. If it is in use, then we will defer queries instead of
70 # answering them right away, accumulating the Deferreds in a dict. We
71 # don't know exactly how many queries we'll get, so exactly one
72 # second after the first query arrives, we will release them all (in
76 self._pending_timer = None
78 def read(self, peerid, storage_index):
79 shares = self._peers.get(peerid, {})
80 if self._sequence is None:
81 return eventuaaaaaly(shares)
84 self._pending_timer = reactor.callLater(1.0, self._fire_readers)
85 if peerid not in self._pending:
86 self._pending[peerid] = []
87 self._pending[peerid].append( (d, shares) )
90 def _fire_readers(self):
91 self._pending_timer = None
92 pending = self._pending
94 for peerid in self._sequence:
96 for (d, shares) in pending.pop(peerid):
97 eventually(d.callback, shares)
98 for peerid in pending:
99 for (d, shares) in pending[peerid]:
100 eventually(d.callback, shares)
102 def write(self, peerid, storage_index, shnum, offset, data):
103 if peerid not in self._peers:
104 self._peers[peerid] = {}
105 shares = self._peers[peerid]
107 f.write(shares.get(shnum, ""))
110 shares[shnum] = f.getvalue()
113 class FakeStorageServer:
114 def __init__(self, peerid, storage):
116 self.storage = storage
118 def callRemote(self, methname, *args, **kwargs):
121 meth = getattr(self, methname)
122 return meth(*args, **kwargs)
124 d.addCallback(lambda res: _call())
127 def callRemoteOnly(self, methname, *args, **kwargs):
129 d = self.callRemote(methname, *args, **kwargs)
130 d.addBoth(lambda ignore: None)
133 def advise_corrupt_share(self, share_type, storage_index, shnum, reason):
136 def slot_readv(self, storage_index, shnums, readv):
137 d = self.storage.read(self.peerid, storage_index)
141 if shnums and shnum not in shnums:
143 vector = response[shnum] = []
144 for (offset, length) in readv:
145 assert isinstance(offset, (int, long)), offset
146 assert isinstance(length, (int, long)), length
147 vector.append(shares[shnum][offset:offset+length])
152 def slot_testv_and_readv_and_writev(self, storage_index, secrets,
153 tw_vectors, read_vector):
154 # always-pass: parrot the test vectors back to them.
156 for shnum, (testv, writev, new_length) in tw_vectors.items():
157 for (offset, length, op, specimen) in testv:
158 assert op in ("le", "eq", "ge")
159 # TODO: this isn't right, the read is controlled by read_vector,
161 readv[shnum] = [ specimen
162 for (offset, length, op, specimen)
164 for (offset, data) in writev:
165 self.storage.write(self.peerid, storage_index, shnum,
167 answer = (True, readv)
168 return fireEventually(answer)
171 def flip_bit(original, byte_offset):
172 return (original[:byte_offset] +
173 chr(ord(original[byte_offset]) ^ 0x01) +
174 original[byte_offset+1:])
176 def add_two(original, byte_offset):
177 # It isn't enough to simply flip the bit for the version number,
178 # because 1 is a valid version number. So we add two instead.
179 return (original[:byte_offset] +
180 chr(ord(original[byte_offset]) ^ 0x02) +
181 original[byte_offset+1:])
183 def corrupt(res, s, offset, shnums_to_corrupt=None, offset_offset=0):
184 # if shnums_to_corrupt is None, corrupt all shares. Otherwise it is a
185 # list of shnums to corrupt.
187 for peerid in s._peers:
188 shares = s._peers[peerid]
190 if (shnums_to_corrupt is not None
191 and shnum not in shnums_to_corrupt):
194 # We're feeding the reader all of the share data, so it
195 # won't need to use the rref that we didn't provide, nor the
196 # storage index that we didn't provide. We do this because
197 # the reader will work for both MDMF and SDMF.
198 reader = MDMFSlotReadProxy(None, None, shnum, data)
199 # We need to get the offsets for the next part.
200 d = reader.get_verinfo()
201 def _do_corruption(verinfo, data, shnum, shares):
207 k, n, prefix, o) = verinfo
208 if isinstance(offset, tuple):
209 offset1, offset2 = offset
213 if offset1 == "pubkey" and IV:
216 real_offset = o[offset1]
218 real_offset = offset1
219 real_offset = int(real_offset) + offset2 + offset_offset
220 assert isinstance(real_offset, int), offset
221 if offset1 == 0: # verbyte
225 shares[shnum] = f(data, real_offset)
226 d.addCallback(_do_corruption, data, shnum, shares)
228 dl = defer.DeferredList(ds)
229 dl.addCallback(lambda ignored: res)
232 def make_storagebroker(s=None, num_peers=10):
235 peerids = [tagged_hash("peerid", "%d" % i)[:20]
236 for i in range(num_peers)]
237 storage_broker = StorageFarmBroker(None, True)
238 for peerid in peerids:
239 fss = FakeStorageServer(peerid, s)
240 ann = {"anonymous-storage-FURL": "pb://%s@nowhere/fake" % base32.b2a(peerid),
241 "permutation-seed-base32": base32.b2a(peerid) }
242 storage_broker.test_add_rref(peerid, fss, ann)
243 return storage_broker
245 def make_nodemaker(s=None, num_peers=10, keysize=TEST_RSA_KEY_SIZE):
246 storage_broker = make_storagebroker(s, num_peers)
247 sh = client.SecretHolder("lease secret", "convergence secret")
248 keygen = client.KeyGenerator()
250 keygen.set_default_keysize(keysize)
251 nodemaker = NodeMaker(storage_broker, sh, None,
253 {"k": 3, "n": 10}, SDMF_VERSION, keygen)
256 class Filenode(unittest.TestCase, testutil.ShouldFailMixin):
257 # this used to be in Publish, but we removed the limit. Some of
258 # these tests test whether the new code correctly allows files
259 # larger than the limit.
260 OLD_MAX_SEGMENT_SIZE = 3500000
262 self._storage = s = FakeStorage()
263 self.nodemaker = make_nodemaker(s)
265 def test_create(self):
266 d = self.nodemaker.create_mutable_file()
268 self.failUnless(isinstance(n, MutableFileNode))
269 self.failUnlessEqual(n.get_storage_index(), n._storage_index)
270 sb = self.nodemaker.storage_broker
271 peer0 = sorted(sb.get_all_serverids())[0]
272 shnums = self._storage._peers[peer0].keys()
273 self.failUnlessEqual(len(shnums), 1)
274 d.addCallback(_created)
278 def test_create_mdmf(self):
279 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
281 self.failUnless(isinstance(n, MutableFileNode))
282 self.failUnlessEqual(n.get_storage_index(), n._storage_index)
283 sb = self.nodemaker.storage_broker
284 peer0 = sorted(sb.get_all_serverids())[0]
285 shnums = self._storage._peers[peer0].keys()
286 self.failUnlessEqual(len(shnums), 1)
287 d.addCallback(_created)
290 def test_single_share(self):
291 # Make sure that we tolerate publishing a single share.
292 self.nodemaker.default_encoding_parameters['k'] = 1
293 self.nodemaker.default_encoding_parameters['happy'] = 1
294 self.nodemaker.default_encoding_parameters['n'] = 1
295 d = defer.succeed(None)
296 for v in (SDMF_VERSION, MDMF_VERSION):
297 d.addCallback(lambda ignored, v=v:
298 self.nodemaker.create_mutable_file(version=v))
300 self.failUnless(isinstance(n, MutableFileNode))
303 d.addCallback(_created)
304 d.addCallback(lambda n:
305 n.overwrite(MutableData("Contents" * 50000)))
306 d.addCallback(lambda ignored:
307 self._node.download_best_version())
308 d.addCallback(lambda contents:
309 self.failUnlessEqual(contents, "Contents" * 50000))
312 def test_max_shares(self):
313 self.nodemaker.default_encoding_parameters['n'] = 255
314 d = self.nodemaker.create_mutable_file(version=SDMF_VERSION)
316 self.failUnless(isinstance(n, MutableFileNode))
317 self.failUnlessEqual(n.get_storage_index(), n._storage_index)
318 sb = self.nodemaker.storage_broker
319 num_shares = sum([len(self._storage._peers[x].keys()) for x \
320 in sb.get_all_serverids()])
321 self.failUnlessEqual(num_shares, 255)
324 d.addCallback(_created)
325 # Now we upload some contents
326 d.addCallback(lambda n:
327 n.overwrite(MutableData("contents" * 50000)))
328 # ...then download contents
329 d.addCallback(lambda ignored:
330 self._node.download_best_version())
331 # ...and check to make sure everything went okay.
332 d.addCallback(lambda contents:
333 self.failUnlessEqual("contents" * 50000, contents))
336 def test_max_shares_mdmf(self):
337 # Test how files behave when there are 255 shares.
338 self.nodemaker.default_encoding_parameters['n'] = 255
339 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
341 self.failUnless(isinstance(n, MutableFileNode))
342 self.failUnlessEqual(n.get_storage_index(), n._storage_index)
343 sb = self.nodemaker.storage_broker
344 num_shares = sum([len(self._storage._peers[x].keys()) for x \
345 in sb.get_all_serverids()])
346 self.failUnlessEqual(num_shares, 255)
349 d.addCallback(_created)
350 d.addCallback(lambda n:
351 n.overwrite(MutableData("contents" * 50000)))
352 d.addCallback(lambda ignored:
353 self._node.download_best_version())
354 d.addCallback(lambda contents:
355 self.failUnlessEqual(contents, "contents" * 50000))
358 def test_mdmf_filenode_cap(self):
359 # Test that an MDMF filenode, once created, returns an MDMF URI.
360 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
362 self.failUnless(isinstance(n, MutableFileNode))
364 self.failUnless(isinstance(cap, uri.WriteableMDMFFileURI))
365 rcap = n.get_readcap()
366 self.failUnless(isinstance(rcap, uri.ReadonlyMDMFFileURI))
367 vcap = n.get_verify_cap()
368 self.failUnless(isinstance(vcap, uri.MDMFVerifierURI))
369 d.addCallback(_created)
373 def test_create_from_mdmf_writecap(self):
374 # Test that the nodemaker is capable of creating an MDMF
375 # filenode given an MDMF cap.
376 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
378 self.failUnless(isinstance(n, MutableFileNode))
380 self.failUnless(s.startswith("URI:MDMF"))
381 n2 = self.nodemaker.create_from_cap(s)
382 self.failUnless(isinstance(n2, MutableFileNode))
383 self.failUnlessEqual(n.get_storage_index(), n2.get_storage_index())
384 self.failUnlessEqual(n.get_uri(), n2.get_uri())
385 d.addCallback(_created)
389 def test_create_from_mdmf_readcap(self):
390 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
392 self.failUnless(isinstance(n, MutableFileNode))
393 s = n.get_readonly_uri()
394 n2 = self.nodemaker.create_from_cap(s)
395 self.failUnless(isinstance(n2, MutableFileNode))
397 # Check that it's a readonly node
398 self.failUnless(n2.is_readonly())
399 d.addCallback(_created)
403 def test_internal_version_from_cap(self):
404 # MutableFileNodes and MutableFileVersions have an internal
405 # switch that tells them whether they're dealing with an SDMF or
406 # MDMF mutable file when they start doing stuff. We want to make
407 # sure that this is set appropriately given an MDMF cap.
408 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
410 self.uri = n.get_uri()
411 self.failUnlessEqual(n._protocol_version, MDMF_VERSION)
413 n2 = self.nodemaker.create_from_cap(self.uri)
414 self.failUnlessEqual(n2._protocol_version, MDMF_VERSION)
415 d.addCallback(_created)
419 def test_serialize(self):
420 n = MutableFileNode(None, None, {"k": 3, "n": 10}, None)
422 def _callback(*args, **kwargs):
423 self.failUnlessEqual(args, (4,) )
424 self.failUnlessEqual(kwargs, {"foo": 5})
427 d = n._do_serialized(_callback, 4, foo=5)
428 def _check_callback(res):
429 self.failUnlessEqual(res, 6)
430 self.failUnlessEqual(calls, [1])
431 d.addCallback(_check_callback)
434 raise ValueError("heya")
435 d.addCallback(lambda res:
436 self.shouldFail(ValueError, "_check_errback", "heya",
437 n._do_serialized, _errback))
440 def test_upload_and_download(self):
441 d = self.nodemaker.create_mutable_file()
443 d = defer.succeed(None)
444 d.addCallback(lambda res: n.get_servermap(MODE_READ))
445 d.addCallback(lambda smap: smap.dump(StringIO()))
446 d.addCallback(lambda sio:
447 self.failUnless("3-of-10" in sio.getvalue()))
448 d.addCallback(lambda res: n.overwrite(MutableData("contents 1")))
449 d.addCallback(lambda res: self.failUnlessIdentical(res, None))
450 d.addCallback(lambda res: n.download_best_version())
451 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 1"))
452 d.addCallback(lambda res: n.get_size_of_best_version())
453 d.addCallback(lambda size:
454 self.failUnlessEqual(size, len("contents 1")))
455 d.addCallback(lambda res: n.overwrite(MutableData("contents 2")))
456 d.addCallback(lambda res: n.download_best_version())
457 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 2"))
458 d.addCallback(lambda res: n.get_servermap(MODE_WRITE))
459 d.addCallback(lambda smap: n.upload(MutableData("contents 3"), smap))
460 d.addCallback(lambda res: n.download_best_version())
461 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 3"))
462 d.addCallback(lambda res: n.get_servermap(MODE_ANYTHING))
463 d.addCallback(lambda smap:
464 n.download_version(smap,
465 smap.best_recoverable_version()))
466 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 3"))
467 # test a file that is large enough to overcome the
468 # mapupdate-to-retrieve data caching (i.e. make the shares larger
469 # than the default readsize, which is 2000 bytes). A 15kB file
470 # will have 5kB shares.
471 d.addCallback(lambda res: n.overwrite(MutableData("large size file" * 1000)))
472 d.addCallback(lambda res: n.download_best_version())
473 d.addCallback(lambda res:
474 self.failUnlessEqual(res, "large size file" * 1000))
476 d.addCallback(_created)
480 def test_upload_and_download_mdmf(self):
481 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
483 d = defer.succeed(None)
484 d.addCallback(lambda ignored:
485 n.get_servermap(MODE_READ))
486 def _then(servermap):
487 dumped = servermap.dump(StringIO())
488 self.failUnlessIn("3-of-10", dumped.getvalue())
490 # Now overwrite the contents with some new contents. We want
491 # to make them big enough to force the file to be uploaded
492 # in more than one segment.
493 big_contents = "contents1" * 100000 # about 900 KiB
494 big_contents_uploadable = MutableData(big_contents)
495 d.addCallback(lambda ignored:
496 n.overwrite(big_contents_uploadable))
497 d.addCallback(lambda ignored:
498 n.download_best_version())
499 d.addCallback(lambda data:
500 self.failUnlessEqual(data, big_contents))
501 # Overwrite the contents again with some new contents. As
502 # before, they need to be big enough to force multiple
503 # segments, so that we make the downloader deal with
505 bigger_contents = "contents2" * 1000000 # about 9MiB
506 bigger_contents_uploadable = MutableData(bigger_contents)
507 d.addCallback(lambda ignored:
508 n.overwrite(bigger_contents_uploadable))
509 d.addCallback(lambda ignored:
510 n.download_best_version())
511 d.addCallback(lambda data:
512 self.failUnlessEqual(data, bigger_contents))
514 d.addCallback(_created)
518 def test_retrieve_producer_mdmf(self):
519 # We should make sure that the retriever is able to pause and stop
521 data = "contents1" * 100000
522 d = self.nodemaker.create_mutable_file(MutableData(data),
523 version=MDMF_VERSION)
524 d.addCallback(lambda node: node.get_best_mutable_version())
525 d.addCallback(self._test_retrieve_producer, "MDMF", data)
528 # note: SDMF has only one big segment, so we can't use the usual
529 # after-the-first-write() trick to pause or stop the download.
530 # Disabled until we find a better approach.
531 def OFF_test_retrieve_producer_sdmf(self):
532 data = "contents1" * 100000
533 d = self.nodemaker.create_mutable_file(MutableData(data),
534 version=SDMF_VERSION)
535 d.addCallback(lambda node: node.get_best_mutable_version())
536 d.addCallback(self._test_retrieve_producer, "SDMF", data)
539 def _test_retrieve_producer(self, version, kind, data):
540 # Now we'll retrieve it into a pausing consumer.
541 c = PausingConsumer()
543 d.addCallback(lambda ign: self.failUnlessEqual(c.size, len(data)))
545 c2 = PausingAndStoppingConsumer()
546 d.addCallback(lambda ign:
547 self.shouldFail(DownloadStopped, kind+"_pause_stop",
548 "our Consumer called stopProducing()",
551 c3 = StoppingConsumer()
552 d.addCallback(lambda ign:
553 self.shouldFail(DownloadStopped, kind+"_stop",
554 "our Consumer called stopProducing()",
557 c4 = ImmediatelyStoppingConsumer()
558 d.addCallback(lambda ign:
559 self.shouldFail(DownloadStopped, kind+"_stop_imm",
560 "our Consumer called stopProducing()",
564 c5 = MemoryConsumer()
565 d1 = version.read(c5)
566 c5.producer.stopProducing()
567 return self.shouldFail(DownloadStopped, kind+"_stop_imm2",
568 "our Consumer called stopProducing()",
573 def test_download_from_mdmf_cap(self):
574 # We should be able to download an MDMF file given its cap
575 d = self.nodemaker.create_mutable_file(version=MDMF_VERSION)
577 self.uri = node.get_uri()
578 # also confirm that the cap has no extension fields
579 pieces = self.uri.split(":")
580 self.failUnlessEqual(len(pieces), 4)
582 return node.overwrite(MutableData("contents1" * 100000))
584 node = self.nodemaker.create_from_cap(self.uri)
585 return node.download_best_version()
586 def _downloaded(data):
587 self.failUnlessEqual(data, "contents1" * 100000)
588 d.addCallback(_created)
590 d.addCallback(_downloaded)
594 def test_mdmf_write_count(self):
595 # Publishing an MDMF file should only cause one write for each
596 # share that is to be published. Otherwise, we introduce
597 # undesirable semantics that are a regression from SDMF
598 upload = MutableData("MDMF" * 100000) # about 400 KiB
599 d = self.nodemaker.create_mutable_file(upload,
600 version=MDMF_VERSION)
601 def _check_server_write_counts(ignored):
602 sb = self.nodemaker.storage_broker
603 for server in sb.servers.itervalues():
604 self.failUnlessEqual(server.get_rref().queries, 1)
605 d.addCallback(_check_server_write_counts)
609 def test_create_with_initial_contents(self):
610 upload1 = MutableData("contents 1")
611 d = self.nodemaker.create_mutable_file(upload1)
613 d = n.download_best_version()
614 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 1"))
615 upload2 = MutableData("contents 2")
616 d.addCallback(lambda res: n.overwrite(upload2))
617 d.addCallback(lambda res: n.download_best_version())
618 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 2"))
620 d.addCallback(_created)
624 def test_create_mdmf_with_initial_contents(self):
625 initial_contents = "foobarbaz" * 131072 # 900KiB
626 initial_contents_uploadable = MutableData(initial_contents)
627 d = self.nodemaker.create_mutable_file(initial_contents_uploadable,
628 version=MDMF_VERSION)
630 d = n.download_best_version()
631 d.addCallback(lambda data:
632 self.failUnlessEqual(data, initial_contents))
633 uploadable2 = MutableData(initial_contents + "foobarbaz")
634 d.addCallback(lambda ignored:
635 n.overwrite(uploadable2))
636 d.addCallback(lambda ignored:
637 n.download_best_version())
638 d.addCallback(lambda data:
639 self.failUnlessEqual(data, initial_contents +
642 d.addCallback(_created)
645 def test_create_with_initial_contents_function(self):
646 data = "initial contents"
647 def _make_contents(n):
648 self.failUnless(isinstance(n, MutableFileNode))
649 key = n.get_writekey()
650 self.failUnless(isinstance(key, str), key)
651 self.failUnlessEqual(len(key), 16) # AES key size
652 return MutableData(data)
653 d = self.nodemaker.create_mutable_file(_make_contents)
655 return n.download_best_version()
656 d.addCallback(_created)
657 d.addCallback(lambda data2: self.failUnlessEqual(data2, data))
661 def test_create_mdmf_with_initial_contents_function(self):
662 data = "initial contents" * 100000
663 def _make_contents(n):
664 self.failUnless(isinstance(n, MutableFileNode))
665 key = n.get_writekey()
666 self.failUnless(isinstance(key, str), key)
667 self.failUnlessEqual(len(key), 16)
668 return MutableData(data)
669 d = self.nodemaker.create_mutable_file(_make_contents,
670 version=MDMF_VERSION)
671 d.addCallback(lambda n:
672 n.download_best_version())
673 d.addCallback(lambda data2:
674 self.failUnlessEqual(data2, data))
678 def test_create_with_too_large_contents(self):
679 BIG = "a" * (self.OLD_MAX_SEGMENT_SIZE + 1)
680 BIG_uploadable = MutableData(BIG)
681 d = self.nodemaker.create_mutable_file(BIG_uploadable)
683 other_BIG_uploadable = MutableData(BIG)
684 d = n.overwrite(other_BIG_uploadable)
686 d.addCallback(_created)
689 def failUnlessCurrentSeqnumIs(self, n, expected_seqnum, which):
690 d = n.get_servermap(MODE_READ)
691 d.addCallback(lambda servermap: servermap.best_recoverable_version())
692 d.addCallback(lambda verinfo:
693 self.failUnlessEqual(verinfo[0], expected_seqnum, which))
696 def test_modify(self):
697 def _modifier(old_contents, servermap, first_time):
698 new_contents = old_contents + "line2"
700 def _non_modifier(old_contents, servermap, first_time):
702 def _none_modifier(old_contents, servermap, first_time):
704 def _error_modifier(old_contents, servermap, first_time):
705 raise ValueError("oops")
706 def _toobig_modifier(old_contents, servermap, first_time):
707 new_content = "b" * (self.OLD_MAX_SEGMENT_SIZE + 1)
710 def _ucw_error_modifier(old_contents, servermap, first_time):
711 # simulate an UncoordinatedWriteError once
714 raise UncoordinatedWriteError("simulated")
715 new_contents = old_contents + "line3"
717 def _ucw_error_non_modifier(old_contents, servermap, first_time):
718 # simulate an UncoordinatedWriteError once, and don't actually
719 # modify the contents on subsequent invocations
722 raise UncoordinatedWriteError("simulated")
725 initial_contents = "line1"
726 d = self.nodemaker.create_mutable_file(MutableData(initial_contents))
728 d = n.modify(_modifier)
729 d.addCallback(lambda res: n.download_best_version())
730 d.addCallback(lambda res: self.failUnlessEqual(res, "line1line2"))
731 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 2, "m"))
733 d.addCallback(lambda res: n.modify(_non_modifier))
734 d.addCallback(lambda res: n.download_best_version())
735 d.addCallback(lambda res: self.failUnlessEqual(res, "line1line2"))
736 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 2, "non"))
738 d.addCallback(lambda res: n.modify(_none_modifier))
739 d.addCallback(lambda res: n.download_best_version())
740 d.addCallback(lambda res: self.failUnlessEqual(res, "line1line2"))
741 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 2, "none"))
743 d.addCallback(lambda res:
744 self.shouldFail(ValueError, "error_modifier", None,
745 n.modify, _error_modifier))
746 d.addCallback(lambda res: n.download_best_version())
747 d.addCallback(lambda res: self.failUnlessEqual(res, "line1line2"))
748 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 2, "err"))
751 d.addCallback(lambda res: n.download_best_version())
752 d.addCallback(lambda res: self.failUnlessEqual(res, "line1line2"))
753 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 2, "big"))
755 d.addCallback(lambda res: n.modify(_ucw_error_modifier))
756 d.addCallback(lambda res: self.failUnlessEqual(len(calls), 2))
757 d.addCallback(lambda res: n.download_best_version())
758 d.addCallback(lambda res: self.failUnlessEqual(res,
760 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 3, "ucw"))
762 def _reset_ucw_error_modifier(res):
765 d.addCallback(_reset_ucw_error_modifier)
767 # in practice, this n.modify call should publish twice: the first
768 # one gets a UCWE, the second does not. But our test jig (in
769 # which the modifier raises the UCWE) skips over the first one,
770 # so in this test there will be only one publish, and the seqnum
771 # will only be one larger than the previous test, not two (i.e. 4
773 d.addCallback(lambda res: n.modify(_ucw_error_non_modifier))
774 d.addCallback(lambda res: self.failUnlessEqual(len(calls), 2))
775 d.addCallback(lambda res: n.download_best_version())
776 d.addCallback(lambda res: self.failUnlessEqual(res,
778 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 4, "ucw"))
779 d.addCallback(lambda res: n.modify(_toobig_modifier))
781 d.addCallback(_created)
785 def test_modify_backoffer(self):
786 def _modifier(old_contents, servermap, first_time):
787 return old_contents + "line2"
789 def _ucw_error_modifier(old_contents, servermap, first_time):
790 # simulate an UncoordinatedWriteError once
793 raise UncoordinatedWriteError("simulated")
794 return old_contents + "line3"
795 def _always_ucw_error_modifier(old_contents, servermap, first_time):
796 raise UncoordinatedWriteError("simulated")
797 def _backoff_stopper(node, f):
799 def _backoff_pauser(node, f):
801 reactor.callLater(0.5, d.callback, None)
804 # the give-up-er will hit its maximum retry count quickly
805 giveuper = BackoffAgent()
806 giveuper._delay = 0.1
809 d = self.nodemaker.create_mutable_file(MutableData("line1"))
811 d = n.modify(_modifier)
812 d.addCallback(lambda res: n.download_best_version())
813 d.addCallback(lambda res: self.failUnlessEqual(res, "line1line2"))
814 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 2, "m"))
816 d.addCallback(lambda res:
817 self.shouldFail(UncoordinatedWriteError,
818 "_backoff_stopper", None,
819 n.modify, _ucw_error_modifier,
821 d.addCallback(lambda res: n.download_best_version())
822 d.addCallback(lambda res: self.failUnlessEqual(res, "line1line2"))
823 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 2, "stop"))
825 def _reset_ucw_error_modifier(res):
828 d.addCallback(_reset_ucw_error_modifier)
829 d.addCallback(lambda res: n.modify(_ucw_error_modifier,
831 d.addCallback(lambda res: n.download_best_version())
832 d.addCallback(lambda res: self.failUnlessEqual(res,
834 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 3, "pause"))
836 d.addCallback(lambda res:
837 self.shouldFail(UncoordinatedWriteError,
839 n.modify, _always_ucw_error_modifier,
841 d.addCallback(lambda res: n.download_best_version())
842 d.addCallback(lambda res: self.failUnlessEqual(res,
844 d.addCallback(lambda res: self.failUnlessCurrentSeqnumIs(n, 3, "giveup"))
847 d.addCallback(_created)
850 def test_upload_and_download_full_size_keys(self):
851 self.nodemaker.key_generator = client.KeyGenerator()
852 d = self.nodemaker.create_mutable_file()
854 d = defer.succeed(None)
855 d.addCallback(lambda res: n.get_servermap(MODE_READ))
856 d.addCallback(lambda smap: smap.dump(StringIO()))
857 d.addCallback(lambda sio:
858 self.failUnless("3-of-10" in sio.getvalue()))
859 d.addCallback(lambda res: n.overwrite(MutableData("contents 1")))
860 d.addCallback(lambda res: self.failUnlessIdentical(res, None))
861 d.addCallback(lambda res: n.download_best_version())
862 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 1"))
863 d.addCallback(lambda res: n.overwrite(MutableData("contents 2")))
864 d.addCallback(lambda res: n.download_best_version())
865 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 2"))
866 d.addCallback(lambda res: n.get_servermap(MODE_WRITE))
867 d.addCallback(lambda smap: n.upload(MutableData("contents 3"), smap))
868 d.addCallback(lambda res: n.download_best_version())
869 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 3"))
870 d.addCallback(lambda res: n.get_servermap(MODE_ANYTHING))
871 d.addCallback(lambda smap:
872 n.download_version(smap,
873 smap.best_recoverable_version()))
874 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 3"))
876 d.addCallback(_created)
880 def test_size_after_servermap_update(self):
881 # a mutable file node should have something to say about how big
882 # it is after a servermap update is performed, since this tells
883 # us how large the best version of that mutable file is.
884 d = self.nodemaker.create_mutable_file()
887 return n.get_servermap(MODE_READ)
888 d.addCallback(_created)
889 d.addCallback(lambda ignored:
890 self.failUnlessEqual(self.n.get_size(), 0))
891 d.addCallback(lambda ignored:
892 self.n.overwrite(MutableData("foobarbaz")))
893 d.addCallback(lambda ignored:
894 self.failUnlessEqual(self.n.get_size(), 9))
895 d.addCallback(lambda ignored:
896 self.nodemaker.create_mutable_file(MutableData("foobarbaz")))
897 d.addCallback(_created)
898 d.addCallback(lambda ignored:
899 self.failUnlessEqual(self.n.get_size(), 9))
904 def publish_one(self):
905 # publish a file and create shares, which can then be manipulated
907 self.CONTENTS = "New contents go here" * 1000
908 self.uploadable = MutableData(self.CONTENTS)
909 self._storage = FakeStorage()
910 self._nodemaker = make_nodemaker(self._storage)
911 self._storage_broker = self._nodemaker.storage_broker
912 d = self._nodemaker.create_mutable_file(self.uploadable)
915 self._fn2 = self._nodemaker.create_from_cap(node.get_uri())
916 d.addCallback(_created)
919 def publish_mdmf(self):
920 # like publish_one, except that the result is guaranteed to be
922 # self.CONTENTS should have more than one segment.
923 self.CONTENTS = "This is an MDMF file" * 100000
924 self.uploadable = MutableData(self.CONTENTS)
925 self._storage = FakeStorage()
926 self._nodemaker = make_nodemaker(self._storage)
927 self._storage_broker = self._nodemaker.storage_broker
928 d = self._nodemaker.create_mutable_file(self.uploadable, version=MDMF_VERSION)
931 self._fn2 = self._nodemaker.create_from_cap(node.get_uri())
932 d.addCallback(_created)
936 def publish_sdmf(self):
937 # like publish_one, except that the result is guaranteed to be
939 self.CONTENTS = "This is an SDMF file" * 1000
940 self.uploadable = MutableData(self.CONTENTS)
941 self._storage = FakeStorage()
942 self._nodemaker = make_nodemaker(self._storage)
943 self._storage_broker = self._nodemaker.storage_broker
944 d = self._nodemaker.create_mutable_file(self.uploadable, version=SDMF_VERSION)
947 self._fn2 = self._nodemaker.create_from_cap(node.get_uri())
948 d.addCallback(_created)
951 def publish_empty_sdmf(self):
953 self.uploadable = MutableData(self.CONTENTS)
954 self._storage = FakeStorage()
955 self._nodemaker = make_nodemaker(self._storage, keysize=None)
956 self._storage_broker = self._nodemaker.storage_broker
957 d = self._nodemaker.create_mutable_file(self.uploadable,
958 version=SDMF_VERSION)
961 self._fn2 = self._nodemaker.create_from_cap(node.get_uri())
962 d.addCallback(_created)
966 def publish_multiple(self, version=0):
967 self.CONTENTS = ["Contents 0",
972 self.uploadables = [MutableData(d) for d in self.CONTENTS]
973 self._copied_shares = {}
974 self._storage = FakeStorage()
975 self._nodemaker = make_nodemaker(self._storage)
976 d = self._nodemaker.create_mutable_file(self.uploadables[0], version=version) # seqnum=1
979 # now create multiple versions of the same file, and accumulate
980 # their shares, so we can mix and match them later.
981 d = defer.succeed(None)
982 d.addCallback(self._copy_shares, 0)
983 d.addCallback(lambda res: node.overwrite(self.uploadables[1])) #s2
984 d.addCallback(self._copy_shares, 1)
985 d.addCallback(lambda res: node.overwrite(self.uploadables[2])) #s3
986 d.addCallback(self._copy_shares, 2)
987 d.addCallback(lambda res: node.overwrite(self.uploadables[3])) #s4a
988 d.addCallback(self._copy_shares, 3)
989 # now we replace all the shares with version s3, and upload a new
990 # version to get s4b.
991 rollback = dict([(i,2) for i in range(10)])
992 d.addCallback(lambda res: self._set_versions(rollback))
993 d.addCallback(lambda res: node.overwrite(self.uploadables[4])) #s4b
994 d.addCallback(self._copy_shares, 4)
995 # we leave the storage in state 4
997 d.addCallback(_created)
1001 def _copy_shares(self, ignored, index):
1002 shares = self._storage._peers
1003 # we need a deep copy
1005 for peerid in shares:
1006 new_shares[peerid] = {}
1007 for shnum in shares[peerid]:
1008 new_shares[peerid][shnum] = shares[peerid][shnum]
1009 self._copied_shares[index] = new_shares
1011 def _set_versions(self, versionmap):
1012 # versionmap maps shnums to which version (0,1,2,3,4) we want the
1013 # share to be at. Any shnum which is left out of the map will stay at
1014 # its current version.
1015 shares = self._storage._peers
1016 oldshares = self._copied_shares
1017 for peerid in shares:
1018 for shnum in shares[peerid]:
1019 if shnum in versionmap:
1020 index = versionmap[shnum]
1021 shares[peerid][shnum] = oldshares[index][peerid][shnum]
1023 class Servermap(unittest.TestCase, PublishMixin):
1025 return self.publish_one()
1027 def make_servermap(self, mode=MODE_CHECK, fn=None, sb=None,
1032 sb = self._storage_broker
1033 smu = ServermapUpdater(fn, sb, Monitor(),
1034 ServerMap(), mode, update_range=update_range)
1038 def update_servermap(self, oldmap, mode=MODE_CHECK):
1039 smu = ServermapUpdater(self._fn, self._storage_broker, Monitor(),
1044 def failUnlessOneRecoverable(self, sm, num_shares):
1045 self.failUnlessEqual(len(sm.recoverable_versions()), 1)
1046 self.failUnlessEqual(len(sm.unrecoverable_versions()), 0)
1047 best = sm.best_recoverable_version()
1048 self.failIfEqual(best, None)
1049 self.failUnlessEqual(sm.recoverable_versions(), set([best]))
1050 self.failUnlessEqual(len(sm.shares_available()), 1)
1051 self.failUnlessEqual(sm.shares_available()[best], (num_shares, 3, 10))
1052 shnum, servers = sm.make_sharemap().items()[0]
1053 server = list(servers)[0]
1054 self.failUnlessEqual(sm.version_on_server(server, shnum), best)
1055 self.failUnlessEqual(sm.version_on_server(server, 666), None)
1058 def test_basic(self):
1059 d = defer.succeed(None)
1060 ms = self.make_servermap
1061 us = self.update_servermap
1063 d.addCallback(lambda res: ms(mode=MODE_CHECK))
1064 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 10))
1065 d.addCallback(lambda res: ms(mode=MODE_WRITE))
1066 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 10))
1067 d.addCallback(lambda res: ms(mode=MODE_READ))
1068 # this mode stops at k+epsilon, and epsilon=k, so 6 shares
1069 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 6))
1070 d.addCallback(lambda res: ms(mode=MODE_ANYTHING))
1071 # this mode stops at 'k' shares
1072 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 3))
1074 # and can we re-use the same servermap? Note that these are sorted in
1075 # increasing order of number of servers queried, since once a server
1076 # gets into the servermap, we'll always ask it for an update.
1077 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 3))
1078 d.addCallback(lambda sm: us(sm, mode=MODE_READ))
1079 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 6))
1080 d.addCallback(lambda sm: us(sm, mode=MODE_WRITE))
1081 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 10))
1082 d.addCallback(lambda sm: us(sm, mode=MODE_CHECK))
1083 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 10))
1084 d.addCallback(lambda sm: us(sm, mode=MODE_ANYTHING))
1085 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 10))
1089 def test_fetch_privkey(self):
1090 d = defer.succeed(None)
1091 # use the sibling filenode (which hasn't been used yet), and make
1092 # sure it can fetch the privkey. The file is small, so the privkey
1093 # will be fetched on the first (query) pass.
1094 d.addCallback(lambda res: self.make_servermap(MODE_WRITE, self._fn2))
1095 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 10))
1097 # create a new file, which is large enough to knock the privkey out
1098 # of the early part of the file
1099 LARGE = "These are Larger contents" * 200 # about 5KB
1100 LARGE_uploadable = MutableData(LARGE)
1101 d.addCallback(lambda res: self._nodemaker.create_mutable_file(LARGE_uploadable))
1102 def _created(large_fn):
1103 large_fn2 = self._nodemaker.create_from_cap(large_fn.get_uri())
1104 return self.make_servermap(MODE_WRITE, large_fn2)
1105 d.addCallback(_created)
1106 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 10))
1110 def test_mark_bad(self):
1111 d = defer.succeed(None)
1112 ms = self.make_servermap
1114 d.addCallback(lambda res: ms(mode=MODE_READ))
1115 d.addCallback(lambda sm: self.failUnlessOneRecoverable(sm, 6))
1117 v = sm.best_recoverable_version()
1118 vm = sm.make_versionmap()
1119 shares = list(vm[v])
1120 self.failUnlessEqual(len(shares), 6)
1121 self._corrupted = set()
1122 # mark the first 5 shares as corrupt, then update the servermap.
1123 # The map should not have the marked shares it in any more, and
1124 # new shares should be found to replace the missing ones.
1125 for (shnum, server, timestamp) in shares:
1127 self._corrupted.add( (server, shnum) )
1128 sm.mark_bad_share(server, shnum, "")
1129 return self.update_servermap(sm, MODE_WRITE)
1130 d.addCallback(_made_map)
1132 # this should find all 5 shares that weren't marked bad
1133 v = sm.best_recoverable_version()
1134 vm = sm.make_versionmap()
1135 shares = list(vm[v])
1136 for (server, shnum) in self._corrupted:
1137 server_shares = sm.debug_shares_on_server(server)
1138 self.failIf(shnum in server_shares,
1139 "%d was in %s" % (shnum, server_shares))
1140 self.failUnlessEqual(len(shares), 5)
1141 d.addCallback(_check_map)
1144 def failUnlessNoneRecoverable(self, sm):
1145 self.failUnlessEqual(len(sm.recoverable_versions()), 0)
1146 self.failUnlessEqual(len(sm.unrecoverable_versions()), 0)
1147 best = sm.best_recoverable_version()
1148 self.failUnlessEqual(best, None)
1149 self.failUnlessEqual(len(sm.shares_available()), 0)
1151 def test_no_shares(self):
1152 self._storage._peers = {} # delete all shares
1153 ms = self.make_servermap
1154 d = defer.succeed(None)
1156 d.addCallback(lambda res: ms(mode=MODE_CHECK))
1157 d.addCallback(lambda sm: self.failUnlessNoneRecoverable(sm))
1159 d.addCallback(lambda res: ms(mode=MODE_ANYTHING))
1160 d.addCallback(lambda sm: self.failUnlessNoneRecoverable(sm))
1162 d.addCallback(lambda res: ms(mode=MODE_WRITE))
1163 d.addCallback(lambda sm: self.failUnlessNoneRecoverable(sm))
1165 d.addCallback(lambda res: ms(mode=MODE_READ))
1166 d.addCallback(lambda sm: self.failUnlessNoneRecoverable(sm))
1170 def failUnlessNotQuiteEnough(self, sm):
1171 self.failUnlessEqual(len(sm.recoverable_versions()), 0)
1172 self.failUnlessEqual(len(sm.unrecoverable_versions()), 1)
1173 best = sm.best_recoverable_version()
1174 self.failUnlessEqual(best, None)
1175 self.failUnlessEqual(len(sm.shares_available()), 1)
1176 self.failUnlessEqual(sm.shares_available().values()[0], (2,3,10) )
1179 def test_not_quite_enough_shares(self):
1181 ms = self.make_servermap
1182 num_shares = len(s._peers)
1183 for peerid in s._peers:
1184 s._peers[peerid] = {}
1188 # now there ought to be only two shares left
1189 assert len([peerid for peerid in s._peers if s._peers[peerid]]) == 2
1191 d = defer.succeed(None)
1193 d.addCallback(lambda res: ms(mode=MODE_CHECK))
1194 d.addCallback(lambda sm: self.failUnlessNotQuiteEnough(sm))
1195 d.addCallback(lambda sm:
1196 self.failUnlessEqual(len(sm.make_sharemap()), 2))
1197 d.addCallback(lambda res: ms(mode=MODE_ANYTHING))
1198 d.addCallback(lambda sm: self.failUnlessNotQuiteEnough(sm))
1199 d.addCallback(lambda res: ms(mode=MODE_WRITE))
1200 d.addCallback(lambda sm: self.failUnlessNotQuiteEnough(sm))
1201 d.addCallback(lambda res: ms(mode=MODE_READ))
1202 d.addCallback(lambda sm: self.failUnlessNotQuiteEnough(sm))
1207 def test_servermapupdater_finds_mdmf_files(self):
1208 # setUp already published an MDMF file for us. We just need to
1209 # make sure that when we run the ServermapUpdater, the file is
1210 # reported to have one recoverable version.
1211 d = defer.succeed(None)
1212 d.addCallback(lambda ignored:
1213 self.publish_mdmf())
1214 d.addCallback(lambda ignored:
1215 self.make_servermap(mode=MODE_CHECK))
1216 # Calling make_servermap also updates the servermap in the mode
1217 # that we specify, so we just need to see what it says.
1218 def _check_servermap(sm):
1219 self.failUnlessEqual(len(sm.recoverable_versions()), 1)
1220 d.addCallback(_check_servermap)
1224 def test_fetch_update(self):
1225 d = defer.succeed(None)
1226 d.addCallback(lambda ignored:
1227 self.publish_mdmf())
1228 d.addCallback(lambda ignored:
1229 self.make_servermap(mode=MODE_WRITE, update_range=(1, 2)))
1230 def _check_servermap(sm):
1232 self.failUnlessEqual(len(sm.update_data), 10)
1234 for data in sm.update_data.itervalues():
1235 self.failUnlessEqual(len(data), 1)
1236 d.addCallback(_check_servermap)
1240 def test_servermapupdater_finds_sdmf_files(self):
1241 d = defer.succeed(None)
1242 d.addCallback(lambda ignored:
1243 self.publish_sdmf())
1244 d.addCallback(lambda ignored:
1245 self.make_servermap(mode=MODE_CHECK))
1246 d.addCallback(lambda servermap:
1247 self.failUnlessEqual(len(servermap.recoverable_versions()), 1))
1251 class Roundtrip(unittest.TestCase, testutil.ShouldFailMixin, PublishMixin):
1253 return self.publish_one()
1255 def make_servermap(self, mode=MODE_READ, oldmap=None, sb=None):
1257 oldmap = ServerMap()
1259 sb = self._storage_broker
1260 smu = ServermapUpdater(self._fn, sb, Monitor(), oldmap, mode)
1264 def abbrev_verinfo(self, verinfo):
1267 (seqnum, root_hash, IV, segsize, datalength, k, N, prefix,
1268 offsets_tuple) = verinfo
1269 return "%d-%s" % (seqnum, base32.b2a(root_hash)[:4])
1271 def abbrev_verinfo_dict(self, verinfo_d):
1273 for verinfo,value in verinfo_d.items():
1274 (seqnum, root_hash, IV, segsize, datalength, k, N, prefix,
1275 offsets_tuple) = verinfo
1276 output["%d-%s" % (seqnum, base32.b2a(root_hash)[:4])] = value
1279 def dump_servermap(self, servermap):
1280 print "SERVERMAP", servermap
1281 print "RECOVERABLE", [self.abbrev_verinfo(v)
1282 for v in servermap.recoverable_versions()]
1283 print "BEST", self.abbrev_verinfo(servermap.best_recoverable_version())
1284 print "available", self.abbrev_verinfo_dict(servermap.shares_available())
1286 def do_download(self, servermap, version=None):
1288 version = servermap.best_recoverable_version()
1289 r = Retrieve(self._fn, self._storage_broker, servermap, version)
1290 c = consumer.MemoryConsumer()
1291 d = r.download(consumer=c)
1292 d.addCallback(lambda mc: "".join(mc.chunks))
1296 def test_basic(self):
1297 d = self.make_servermap()
1298 def _do_retrieve(servermap):
1299 self._smap = servermap
1300 #self.dump_servermap(servermap)
1301 self.failUnlessEqual(len(servermap.recoverable_versions()), 1)
1302 return self.do_download(servermap)
1303 d.addCallback(_do_retrieve)
1304 def _retrieved(new_contents):
1305 self.failUnlessEqual(new_contents, self.CONTENTS)
1306 d.addCallback(_retrieved)
1307 # we should be able to re-use the same servermap, both with and
1308 # without updating it.
1309 d.addCallback(lambda res: self.do_download(self._smap))
1310 d.addCallback(_retrieved)
1311 d.addCallback(lambda res: self.make_servermap(oldmap=self._smap))
1312 d.addCallback(lambda res: self.do_download(self._smap))
1313 d.addCallback(_retrieved)
1314 # clobbering the pubkey should make the servermap updater re-fetch it
1315 def _clobber_pubkey(res):
1316 self._fn._pubkey = None
1317 d.addCallback(_clobber_pubkey)
1318 d.addCallback(lambda res: self.make_servermap(oldmap=self._smap))
1319 d.addCallback(lambda res: self.do_download(self._smap))
1320 d.addCallback(_retrieved)
1323 def test_all_shares_vanished(self):
1324 d = self.make_servermap()
1325 def _remove_shares(servermap):
1326 for shares in self._storage._peers.values():
1328 d1 = self.shouldFail(NotEnoughSharesError,
1329 "test_all_shares_vanished",
1330 "ran out of servers",
1331 self.do_download, servermap)
1333 d.addCallback(_remove_shares)
1336 def test_all_but_two_shares_vanished_updated_servermap(self):
1337 # tests error reporting for ticket #1742
1338 d = self.make_servermap()
1339 def _remove_shares(servermap):
1340 self._version = servermap.best_recoverable_version()
1341 for shares in self._storage._peers.values()[2:]:
1343 return self.make_servermap(servermap)
1344 d.addCallback(_remove_shares)
1345 def _check(updated_servermap):
1346 d1 = self.shouldFail(NotEnoughSharesError,
1347 "test_all_but_two_shares_vanished_updated_servermap",
1348 "ran out of servers",
1349 self.do_download, updated_servermap, version=self._version)
1351 d.addCallback(_check)
1354 def test_no_servers(self):
1355 sb2 = make_storagebroker(num_peers=0)
1356 # if there are no servers, then a MODE_READ servermap should come
1358 d = self.make_servermap(sb=sb2)
1359 def _check_servermap(servermap):
1360 self.failUnlessEqual(servermap.best_recoverable_version(), None)
1361 self.failIf(servermap.recoverable_versions())
1362 self.failIf(servermap.unrecoverable_versions())
1363 self.failIf(servermap.all_servers())
1364 d.addCallback(_check_servermap)
1367 def test_no_servers_download(self):
1368 sb2 = make_storagebroker(num_peers=0)
1369 self._fn._storage_broker = sb2
1370 d = self.shouldFail(UnrecoverableFileError,
1371 "test_no_servers_download",
1372 "no recoverable versions",
1373 self._fn.download_best_version)
1375 # a failed download that occurs while we aren't connected to
1376 # anybody should not prevent a subsequent download from working.
1377 # This isn't quite the webapi-driven test that #463 wants, but it
1378 # should be close enough.
1379 self._fn._storage_broker = self._storage_broker
1380 return self._fn.download_best_version()
1381 def _retrieved(new_contents):
1382 self.failUnlessEqual(new_contents, self.CONTENTS)
1383 d.addCallback(_restore)
1384 d.addCallback(_retrieved)
1388 def _test_corrupt_all(self, offset, substring,
1389 should_succeed=False,
1391 failure_checker=None,
1392 fetch_privkey=False):
1393 d = defer.succeed(None)
1395 d.addCallback(corrupt, self._storage, offset)
1396 d.addCallback(lambda res: self.make_servermap())
1397 if not corrupt_early:
1398 d.addCallback(corrupt, self._storage, offset)
1399 def _do_retrieve(servermap):
1400 ver = servermap.best_recoverable_version()
1401 if ver is None and not should_succeed:
1402 # no recoverable versions == not succeeding. The problem
1403 # should be noted in the servermap's list of problems.
1405 allproblems = [str(f) for f in servermap.get_problems()]
1406 self.failUnlessIn(substring, "".join(allproblems))
1409 d1 = self._fn.download_version(servermap, ver,
1411 d1.addCallback(lambda new_contents:
1412 self.failUnlessEqual(new_contents, self.CONTENTS))
1414 d1 = self.shouldFail(NotEnoughSharesError,
1415 "_corrupt_all(offset=%s)" % (offset,),
1417 self._fn.download_version, servermap,
1421 d1.addCallback(failure_checker)
1422 d1.addCallback(lambda res: servermap)
1424 d.addCallback(_do_retrieve)
1427 def test_corrupt_all_verbyte(self):
1428 # when the version byte is not 0 or 1, we hit an UnknownVersionError
1429 # error in unpack_share().
1430 d = self._test_corrupt_all(0, "UnknownVersionError")
1431 def _check_servermap(servermap):
1432 # and the dump should mention the problems
1434 dump = servermap.dump(s).getvalue()
1435 self.failUnless("30 PROBLEMS" in dump, dump)
1436 d.addCallback(_check_servermap)
1439 def test_corrupt_all_seqnum(self):
1440 # a corrupt sequence number will trigger a bad signature
1441 return self._test_corrupt_all(1, "signature is invalid")
1443 def test_corrupt_all_R(self):
1444 # a corrupt root hash will trigger a bad signature
1445 return self._test_corrupt_all(9, "signature is invalid")
1447 def test_corrupt_all_IV(self):
1448 # a corrupt salt/IV will trigger a bad signature
1449 return self._test_corrupt_all(41, "signature is invalid")
1451 def test_corrupt_all_k(self):
1452 # a corrupt 'k' will trigger a bad signature
1453 return self._test_corrupt_all(57, "signature is invalid")
1455 def test_corrupt_all_N(self):
1456 # a corrupt 'N' will trigger a bad signature
1457 return self._test_corrupt_all(58, "signature is invalid")
1459 def test_corrupt_all_segsize(self):
1460 # a corrupt segsize will trigger a bad signature
1461 return self._test_corrupt_all(59, "signature is invalid")
1463 def test_corrupt_all_datalen(self):
1464 # a corrupt data length will trigger a bad signature
1465 return self._test_corrupt_all(67, "signature is invalid")
1467 def test_corrupt_all_pubkey(self):
1468 # a corrupt pubkey won't match the URI's fingerprint. We need to
1469 # remove the pubkey from the filenode, or else it won't bother trying
1471 self._fn._pubkey = None
1472 return self._test_corrupt_all("pubkey",
1473 "pubkey doesn't match fingerprint")
1475 def test_corrupt_all_sig(self):
1476 # a corrupt signature is a bad one
1477 # the signature runs from about [543:799], depending upon the length
1479 return self._test_corrupt_all("signature", "signature is invalid")
1481 def test_corrupt_all_share_hash_chain_number(self):
1482 # a corrupt share hash chain entry will show up as a bad hash. If we
1483 # mangle the first byte, that will look like a bad hash number,
1484 # causing an IndexError
1485 return self._test_corrupt_all("share_hash_chain", "corrupt hashes")
1487 def test_corrupt_all_share_hash_chain_hash(self):
1488 # a corrupt share hash chain entry will show up as a bad hash. If we
1489 # mangle a few bytes in, that will look like a bad hash.
1490 return self._test_corrupt_all(("share_hash_chain",4), "corrupt hashes")
1492 def test_corrupt_all_block_hash_tree(self):
1493 return self._test_corrupt_all("block_hash_tree",
1494 "block hash tree failure")
1496 def test_corrupt_all_block(self):
1497 return self._test_corrupt_all("share_data", "block hash tree failure")
1499 def test_corrupt_all_encprivkey(self):
1500 # a corrupted privkey won't even be noticed by the reader, only by a
1502 return self._test_corrupt_all("enc_privkey", None, should_succeed=True)
1505 def test_corrupt_all_encprivkey_late(self):
1506 # this should work for the same reason as above, but we corrupt
1507 # after the servermap update to exercise the error handling
1509 # We need to remove the privkey from the node, or the retrieve
1510 # process won't know to update it.
1511 self._fn._privkey = None
1512 return self._test_corrupt_all("enc_privkey",
1513 None, # this shouldn't fail
1514 should_succeed=True,
1515 corrupt_early=False,
1519 # disabled until retrieve tests checkstring on each blockfetch. I didn't
1520 # just use a .todo because the failing-but-ignored test emits about 30kB
1522 def OFF_test_corrupt_all_seqnum_late(self):
1523 # corrupting the seqnum between mapupdate and retrieve should result
1524 # in NotEnoughSharesError, since each share will look invalid
1527 self.failUnless(f.check(NotEnoughSharesError))
1528 self.failUnless("uncoordinated write" in str(f))
1529 return self._test_corrupt_all(1, "ran out of servers",
1530 corrupt_early=False,
1531 failure_checker=_check)
1534 def test_corrupt_all_block_late(self):
1537 self.failUnless(f.check(NotEnoughSharesError))
1538 return self._test_corrupt_all("share_data", "block hash tree failure",
1539 corrupt_early=False,
1540 failure_checker=_check)
1543 def test_basic_pubkey_at_end(self):
1544 # we corrupt the pubkey in all but the last 'k' shares, allowing the
1545 # download to succeed but forcing a bunch of retries first. Note that
1546 # this is rather pessimistic: our Retrieve process will throw away
1547 # the whole share if the pubkey is bad, even though the rest of the
1548 # share might be good.
1550 self._fn._pubkey = None
1551 k = self._fn.get_required_shares()
1552 N = self._fn.get_total_shares()
1553 d = defer.succeed(None)
1554 d.addCallback(corrupt, self._storage, "pubkey",
1555 shnums_to_corrupt=range(0, N-k))
1556 d.addCallback(lambda res: self.make_servermap())
1557 def _do_retrieve(servermap):
1558 self.failUnless(servermap.get_problems())
1559 self.failUnless("pubkey doesn't match fingerprint"
1560 in str(servermap.get_problems()[0]))
1561 ver = servermap.best_recoverable_version()
1562 r = Retrieve(self._fn, self._storage_broker, servermap, ver)
1563 c = consumer.MemoryConsumer()
1564 return r.download(c)
1565 d.addCallback(_do_retrieve)
1566 d.addCallback(lambda mc: "".join(mc.chunks))
1567 d.addCallback(lambda new_contents:
1568 self.failUnlessEqual(new_contents, self.CONTENTS))
1572 def _test_corrupt_some(self, offset, mdmf=False):
1574 d = self.publish_mdmf()
1576 d = defer.succeed(None)
1577 d.addCallback(lambda ignored:
1578 corrupt(None, self._storage, offset, range(5)))
1579 d.addCallback(lambda ignored:
1580 self.make_servermap())
1581 def _do_retrieve(servermap):
1582 ver = servermap.best_recoverable_version()
1583 self.failUnless(ver)
1584 return self._fn.download_best_version()
1585 d.addCallback(_do_retrieve)
1586 d.addCallback(lambda new_contents:
1587 self.failUnlessEqual(new_contents, self.CONTENTS))
1591 def test_corrupt_some(self):
1592 # corrupt the data of first five shares (so the servermap thinks
1593 # they're good but retrieve marks them as bad), so that the
1594 # MODE_READ set of 6 will be insufficient, forcing node.download to
1595 # retry with more servers.
1596 return self._test_corrupt_some("share_data")
1599 def test_download_fails(self):
1600 d = corrupt(None, self._storage, "signature")
1601 d.addCallback(lambda ignored:
1602 self.shouldFail(UnrecoverableFileError, "test_download_anyway",
1603 "no recoverable versions",
1604 self._fn.download_best_version))
1609 def test_corrupt_mdmf_block_hash_tree(self):
1610 d = self.publish_mdmf()
1611 d.addCallback(lambda ignored:
1612 self._test_corrupt_all(("block_hash_tree", 12 * 32),
1613 "block hash tree failure",
1615 should_succeed=False))
1619 def test_corrupt_mdmf_block_hash_tree_late(self):
1620 # Note - there is no SDMF counterpart to this test, as the SDMF
1621 # files are guaranteed to have exactly one block, and therefore
1622 # the block hash tree fits within the initial read (#1240).
1623 d = self.publish_mdmf()
1624 d.addCallback(lambda ignored:
1625 self._test_corrupt_all(("block_hash_tree", 12 * 32),
1626 "block hash tree failure",
1627 corrupt_early=False,
1628 should_succeed=False))
1632 def test_corrupt_mdmf_share_data(self):
1633 d = self.publish_mdmf()
1634 d.addCallback(lambda ignored:
1635 # TODO: Find out what the block size is and corrupt a
1636 # specific block, rather than just guessing.
1637 self._test_corrupt_all(("share_data", 12 * 40),
1638 "block hash tree failure",
1640 should_succeed=False))
1644 def test_corrupt_some_mdmf(self):
1645 return self._test_corrupt_some(("share_data", 12 * 40),
1650 def check_good(self, r, where):
1651 self.failUnless(r.is_healthy(), where)
1654 def check_bad(self, r, where):
1655 self.failIf(r.is_healthy(), where)
1658 def check_expected_failure(self, r, expected_exception, substring, where):
1659 for (peerid, storage_index, shnum, f) in r.get_share_problems():
1660 if f.check(expected_exception):
1661 self.failUnless(substring in str(f),
1662 "%s: substring '%s' not in '%s'" %
1663 (where, substring, str(f)))
1665 self.fail("%s: didn't see expected exception %s in problems %s" %
1666 (where, expected_exception, r.get_share_problems()))
1669 class Checker(unittest.TestCase, CheckerMixin, PublishMixin):
1671 return self.publish_one()
1674 def test_check_good(self):
1675 d = self._fn.check(Monitor())
1676 d.addCallback(self.check_good, "test_check_good")
1679 def test_check_mdmf_good(self):
1680 d = self.publish_mdmf()
1681 d.addCallback(lambda ignored:
1682 self._fn.check(Monitor()))
1683 d.addCallback(self.check_good, "test_check_mdmf_good")
1686 def test_check_no_shares(self):
1687 for shares in self._storage._peers.values():
1689 d = self._fn.check(Monitor())
1690 d.addCallback(self.check_bad, "test_check_no_shares")
1693 def test_check_mdmf_no_shares(self):
1694 d = self.publish_mdmf()
1696 for share in self._storage._peers.values():
1698 d.addCallback(_then)
1699 d.addCallback(lambda ignored:
1700 self._fn.check(Monitor()))
1701 d.addCallback(self.check_bad, "test_check_mdmf_no_shares")
1704 def test_check_not_enough_shares(self):
1705 for shares in self._storage._peers.values():
1706 for shnum in shares.keys():
1709 d = self._fn.check(Monitor())
1710 d.addCallback(self.check_bad, "test_check_not_enough_shares")
1713 def test_check_mdmf_not_enough_shares(self):
1714 d = self.publish_mdmf()
1716 for shares in self._storage._peers.values():
1717 for shnum in shares.keys():
1720 d.addCallback(_then)
1721 d.addCallback(lambda ignored:
1722 self._fn.check(Monitor()))
1723 d.addCallback(self.check_bad, "test_check_mdmf_not_enougH_shares")
1727 def test_check_all_bad_sig(self):
1728 d = corrupt(None, self._storage, 1) # bad sig
1729 d.addCallback(lambda ignored:
1730 self._fn.check(Monitor()))
1731 d.addCallback(self.check_bad, "test_check_all_bad_sig")
1734 def test_check_mdmf_all_bad_sig(self):
1735 d = self.publish_mdmf()
1736 d.addCallback(lambda ignored:
1737 corrupt(None, self._storage, 1))
1738 d.addCallback(lambda ignored:
1739 self._fn.check(Monitor()))
1740 d.addCallback(self.check_bad, "test_check_mdmf_all_bad_sig")
1743 def test_verify_mdmf_all_bad_sharedata(self):
1744 d = self.publish_mdmf()
1745 # On 8 of the shares, corrupt the beginning of the share data.
1746 # The signature check during the servermap update won't catch this.
1747 d.addCallback(lambda ignored:
1748 corrupt(None, self._storage, "share_data", range(8)))
1749 # On 2 of the shares, corrupt the end of the share data.
1750 # The signature check during the servermap update won't catch
1751 # this either, and the retrieval process will have to process
1752 # all of the segments before it notices.
1753 d.addCallback(lambda ignored:
1754 # the block hash tree comes right after the share data, so if we
1755 # corrupt a little before the block hash tree, we'll corrupt in the
1756 # last block of each share.
1757 corrupt(None, self._storage, "block_hash_tree", [8, 9], -5))
1758 d.addCallback(lambda ignored:
1759 self._fn.check(Monitor(), verify=True))
1760 # The verifier should flag the file as unhealthy, and should
1761 # list all 10 shares as bad.
1762 d.addCallback(self.check_bad, "test_verify_mdmf_all_bad_sharedata")
1763 def _check_num_bad(r):
1764 self.failIf(r.is_recoverable())
1765 smap = r.get_servermap()
1766 self.failUnlessEqual(len(smap.get_bad_shares()), 10)
1767 d.addCallback(_check_num_bad)
1770 def test_check_all_bad_blocks(self):
1771 d = corrupt(None, self._storage, "share_data", [9]) # bad blocks
1772 # the Checker won't notice this.. it doesn't look at actual data
1773 d.addCallback(lambda ignored:
1774 self._fn.check(Monitor()))
1775 d.addCallback(self.check_good, "test_check_all_bad_blocks")
1779 def test_check_mdmf_all_bad_blocks(self):
1780 d = self.publish_mdmf()
1781 d.addCallback(lambda ignored:
1782 corrupt(None, self._storage, "share_data"))
1783 d.addCallback(lambda ignored:
1784 self._fn.check(Monitor()))
1785 d.addCallback(self.check_good, "test_check_mdmf_all_bad_blocks")
1788 def test_verify_good(self):
1789 d = self._fn.check(Monitor(), verify=True)
1790 d.addCallback(self.check_good, "test_verify_good")
1793 def test_verify_all_bad_sig(self):
1794 d = corrupt(None, self._storage, 1) # bad sig
1795 d.addCallback(lambda ignored:
1796 self._fn.check(Monitor(), verify=True))
1797 d.addCallback(self.check_bad, "test_verify_all_bad_sig")
1800 def test_verify_one_bad_sig(self):
1801 d = corrupt(None, self._storage, 1, [9]) # bad sig
1802 d.addCallback(lambda ignored:
1803 self._fn.check(Monitor(), verify=True))
1804 d.addCallback(self.check_bad, "test_verify_one_bad_sig")
1807 def test_verify_one_bad_block(self):
1808 d = corrupt(None, self._storage, "share_data", [9]) # bad blocks
1809 # the Verifier *will* notice this, since it examines every byte
1810 d.addCallback(lambda ignored:
1811 self._fn.check(Monitor(), verify=True))
1812 d.addCallback(self.check_bad, "test_verify_one_bad_block")
1813 d.addCallback(self.check_expected_failure,
1814 CorruptShareError, "block hash tree failure",
1815 "test_verify_one_bad_block")
1818 def test_verify_one_bad_sharehash(self):
1819 d = corrupt(None, self._storage, "share_hash_chain", [9], 5)
1820 d.addCallback(lambda ignored:
1821 self._fn.check(Monitor(), verify=True))
1822 d.addCallback(self.check_bad, "test_verify_one_bad_sharehash")
1823 d.addCallback(self.check_expected_failure,
1824 CorruptShareError, "corrupt hashes",
1825 "test_verify_one_bad_sharehash")
1828 def test_verify_one_bad_encprivkey(self):
1829 d = corrupt(None, self._storage, "enc_privkey", [9]) # bad privkey
1830 d.addCallback(lambda ignored:
1831 self._fn.check(Monitor(), verify=True))
1832 d.addCallback(self.check_bad, "test_verify_one_bad_encprivkey")
1833 d.addCallback(self.check_expected_failure,
1834 CorruptShareError, "invalid privkey",
1835 "test_verify_one_bad_encprivkey")
1838 def test_verify_one_bad_encprivkey_uncheckable(self):
1839 d = corrupt(None, self._storage, "enc_privkey", [9]) # bad privkey
1840 readonly_fn = self._fn.get_readonly()
1841 # a read-only node has no way to validate the privkey
1842 d.addCallback(lambda ignored:
1843 readonly_fn.check(Monitor(), verify=True))
1844 d.addCallback(self.check_good,
1845 "test_verify_one_bad_encprivkey_uncheckable")
1849 def test_verify_mdmf_good(self):
1850 d = self.publish_mdmf()
1851 d.addCallback(lambda ignored:
1852 self._fn.check(Monitor(), verify=True))
1853 d.addCallback(self.check_good, "test_verify_mdmf_good")
1857 def test_verify_mdmf_one_bad_block(self):
1858 d = self.publish_mdmf()
1859 d.addCallback(lambda ignored:
1860 corrupt(None, self._storage, "share_data", [1]))
1861 d.addCallback(lambda ignored:
1862 self._fn.check(Monitor(), verify=True))
1863 # We should find one bad block here
1864 d.addCallback(self.check_bad, "test_verify_mdmf_one_bad_block")
1865 d.addCallback(self.check_expected_failure,
1866 CorruptShareError, "block hash tree failure",
1867 "test_verify_mdmf_one_bad_block")
1871 def test_verify_mdmf_bad_encprivkey(self):
1872 d = self.publish_mdmf()
1873 d.addCallback(lambda ignored:
1874 corrupt(None, self._storage, "enc_privkey", [0]))
1875 d.addCallback(lambda ignored:
1876 self._fn.check(Monitor(), verify=True))
1877 d.addCallback(self.check_bad, "test_verify_mdmf_bad_encprivkey")
1878 d.addCallback(self.check_expected_failure,
1879 CorruptShareError, "privkey",
1880 "test_verify_mdmf_bad_encprivkey")
1884 def test_verify_mdmf_bad_sig(self):
1885 d = self.publish_mdmf()
1886 d.addCallback(lambda ignored:
1887 corrupt(None, self._storage, 1, [1]))
1888 d.addCallback(lambda ignored:
1889 self._fn.check(Monitor(), verify=True))
1890 d.addCallback(self.check_bad, "test_verify_mdmf_bad_sig")
1894 def test_verify_mdmf_bad_encprivkey_uncheckable(self):
1895 d = self.publish_mdmf()
1896 d.addCallback(lambda ignored:
1897 corrupt(None, self._storage, "enc_privkey", [1]))
1898 d.addCallback(lambda ignored:
1899 self._fn.get_readonly())
1900 d.addCallback(lambda fn:
1901 fn.check(Monitor(), verify=True))
1902 d.addCallback(self.check_good,
1903 "test_verify_mdmf_bad_encprivkey_uncheckable")
1907 class Repair(unittest.TestCase, PublishMixin, ShouldFailMixin):
1909 def get_shares(self, s):
1910 all_shares = {} # maps (peerid, shnum) to share data
1911 for peerid in s._peers:
1912 shares = s._peers[peerid]
1913 for shnum in shares:
1914 data = shares[shnum]
1915 all_shares[ (peerid, shnum) ] = data
1918 def copy_shares(self, ignored=None):
1919 self.old_shares.append(self.get_shares(self._storage))
1921 def test_repair_nop(self):
1922 self.old_shares = []
1923 d = self.publish_one()
1924 d.addCallback(self.copy_shares)
1925 d.addCallback(lambda res: self._fn.check(Monitor()))
1926 d.addCallback(lambda check_results: self._fn.repair(check_results))
1927 def _check_results(rres):
1928 self.failUnless(IRepairResults.providedBy(rres))
1929 self.failUnless(rres.get_successful())
1930 # TODO: examine results
1934 initial_shares = self.old_shares[0]
1935 new_shares = self.old_shares[1]
1936 # TODO: this really shouldn't change anything. When we implement
1937 # a "minimal-bandwidth" repairer", change this test to assert:
1938 #self.failUnlessEqual(new_shares, initial_shares)
1940 # all shares should be in the same place as before
1941 self.failUnlessEqual(set(initial_shares.keys()),
1942 set(new_shares.keys()))
1943 # but they should all be at a newer seqnum. The IV will be
1944 # different, so the roothash will be too.
1945 for key in initial_shares:
1950 k0, N0, segsize0, datalen0,
1951 o0) = unpack_header(initial_shares[key])
1956 k1, N1, segsize1, datalen1,
1957 o1) = unpack_header(new_shares[key])
1958 self.failUnlessEqual(version0, version1)
1959 self.failUnlessEqual(seqnum0+1, seqnum1)
1960 self.failUnlessEqual(k0, k1)
1961 self.failUnlessEqual(N0, N1)
1962 self.failUnlessEqual(segsize0, segsize1)
1963 self.failUnlessEqual(datalen0, datalen1)
1964 d.addCallback(_check_results)
1967 def failIfSharesChanged(self, ignored=None):
1968 old_shares = self.old_shares[-2]
1969 current_shares = self.old_shares[-1]
1970 self.failUnlessEqual(old_shares, current_shares)
1973 def _test_whether_repairable(self, publisher, nshares, expected_result):
1975 def _delete_some_shares(ign):
1976 shares = self._storage._peers
1977 for peerid in shares:
1978 for shnum in list(shares[peerid]):
1979 if shnum >= nshares:
1980 del shares[peerid][shnum]
1981 d.addCallback(_delete_some_shares)
1982 d.addCallback(lambda ign: self._fn.check(Monitor()))
1984 self.failIf(cr.is_healthy())
1985 self.failUnlessEqual(cr.is_recoverable(), expected_result)
1987 d.addCallback(_check)
1988 d.addCallback(lambda check_results: self._fn.repair(check_results))
1989 d.addCallback(lambda crr: self.failUnlessEqual(crr.get_successful(), expected_result))
1992 def test_unrepairable_0shares(self):
1993 return self._test_whether_repairable(self.publish_one, 0, False)
1995 def test_mdmf_unrepairable_0shares(self):
1996 return self._test_whether_repairable(self.publish_mdmf, 0, False)
1998 def test_unrepairable_1share(self):
1999 return self._test_whether_repairable(self.publish_one, 1, False)
2001 def test_mdmf_unrepairable_1share(self):
2002 return self._test_whether_repairable(self.publish_mdmf, 1, False)
2004 def test_repairable_5shares(self):
2005 return self._test_whether_repairable(self.publish_one, 5, True)
2007 def test_mdmf_repairable_5shares(self):
2008 return self._test_whether_repairable(self.publish_mdmf, 5, True)
2010 def _test_whether_checkandrepairable(self, publisher, nshares, expected_result):
2012 Like the _test_whether_repairable tests, but invoking check_and_repair
2013 instead of invoking check and then invoking repair.
2016 def _delete_some_shares(ign):
2017 shares = self._storage._peers
2018 for peerid in shares:
2019 for shnum in list(shares[peerid]):
2020 if shnum >= nshares:
2021 del shares[peerid][shnum]
2022 d.addCallback(_delete_some_shares)
2023 d.addCallback(lambda ign: self._fn.check_and_repair(Monitor()))
2024 d.addCallback(lambda crr: self.failUnlessEqual(crr.get_repair_successful(), expected_result))
2027 def test_unrepairable_0shares_checkandrepair(self):
2028 return self._test_whether_checkandrepairable(self.publish_one, 0, False)
2030 def test_mdmf_unrepairable_0shares_checkandrepair(self):
2031 return self._test_whether_checkandrepairable(self.publish_mdmf, 0, False)
2033 def test_unrepairable_1share_checkandrepair(self):
2034 return self._test_whether_checkandrepairable(self.publish_one, 1, False)
2036 def test_mdmf_unrepairable_1share_checkandrepair(self):
2037 return self._test_whether_checkandrepairable(self.publish_mdmf, 1, False)
2039 def test_repairable_5shares_checkandrepair(self):
2040 return self._test_whether_checkandrepairable(self.publish_one, 5, True)
2042 def test_mdmf_repairable_5shares_checkandrepair(self):
2043 return self._test_whether_checkandrepairable(self.publish_mdmf, 5, True)
2046 def test_merge(self):
2047 self.old_shares = []
2048 d = self.publish_multiple()
2049 # repair will refuse to merge multiple highest seqnums unless you
2051 d.addCallback(lambda res:
2052 self._set_versions({0:3,2:3,4:3,6:3,8:3,
2053 1:4,3:4,5:4,7:4,9:4}))
2054 d.addCallback(self.copy_shares)
2055 d.addCallback(lambda res: self._fn.check(Monitor()))
2056 def _try_repair(check_results):
2057 ex = "There were multiple recoverable versions with identical seqnums, so force=True must be passed to the repair() operation"
2058 d2 = self.shouldFail(MustForceRepairError, "test_merge", ex,
2059 self._fn.repair, check_results)
2060 d2.addCallback(self.copy_shares)
2061 d2.addCallback(self.failIfSharesChanged)
2062 d2.addCallback(lambda res: check_results)
2064 d.addCallback(_try_repair)
2065 d.addCallback(lambda check_results:
2066 self._fn.repair(check_results, force=True))
2067 # this should give us 10 shares of the highest roothash
2068 def _check_repair_results(rres):
2069 self.failUnless(rres.get_successful())
2071 d.addCallback(_check_repair_results)
2072 d.addCallback(lambda res: self._fn.get_servermap(MODE_CHECK))
2073 def _check_smap(smap):
2074 self.failUnlessEqual(len(smap.recoverable_versions()), 1)
2075 self.failIf(smap.unrecoverable_versions())
2076 # now, which should have won?
2077 roothash_s4a = self.get_roothash_for(3)
2078 roothash_s4b = self.get_roothash_for(4)
2079 if roothash_s4b > roothash_s4a:
2080 expected_contents = self.CONTENTS[4]
2082 expected_contents = self.CONTENTS[3]
2083 new_versionid = smap.best_recoverable_version()
2084 self.failUnlessEqual(new_versionid[0], 5) # seqnum 5
2085 d2 = self._fn.download_version(smap, new_versionid)
2086 d2.addCallback(self.failUnlessEqual, expected_contents)
2088 d.addCallback(_check_smap)
2091 def test_non_merge(self):
2092 self.old_shares = []
2093 d = self.publish_multiple()
2094 # repair should not refuse a repair that doesn't need to merge. In
2095 # this case, we combine v2 with v3. The repair should ignore v2 and
2096 # copy v3 into a new v5.
2097 d.addCallback(lambda res:
2098 self._set_versions({0:2,2:2,4:2,6:2,8:2,
2099 1:3,3:3,5:3,7:3,9:3}))
2100 d.addCallback(lambda res: self._fn.check(Monitor()))
2101 d.addCallback(lambda check_results: self._fn.repair(check_results))
2102 # this should give us 10 shares of v3
2103 def _check_repair_results(rres):
2104 self.failUnless(rres.get_successful())
2106 d.addCallback(_check_repair_results)
2107 d.addCallback(lambda res: self._fn.get_servermap(MODE_CHECK))
2108 def _check_smap(smap):
2109 self.failUnlessEqual(len(smap.recoverable_versions()), 1)
2110 self.failIf(smap.unrecoverable_versions())
2111 # now, which should have won?
2112 expected_contents = self.CONTENTS[3]
2113 new_versionid = smap.best_recoverable_version()
2114 self.failUnlessEqual(new_versionid[0], 5) # seqnum 5
2115 d2 = self._fn.download_version(smap, new_versionid)
2116 d2.addCallback(self.failUnlessEqual, expected_contents)
2118 d.addCallback(_check_smap)
2121 def get_roothash_for(self, index):
2122 # return the roothash for the first share we see in the saved set
2123 shares = self._copied_shares[index]
2124 for peerid in shares:
2125 for shnum in shares[peerid]:
2126 share = shares[peerid][shnum]
2127 (version, seqnum, root_hash, IV, k, N, segsize, datalen, o) = \
2128 unpack_header(share)
2131 def test_check_and_repair_readcap(self):
2132 # we can't currently repair from a mutable readcap: #625
2133 self.old_shares = []
2134 d = self.publish_one()
2135 d.addCallback(self.copy_shares)
2136 def _get_readcap(res):
2137 self._fn3 = self._fn.get_readonly()
2138 # also delete some shares
2139 for peerid,shares in self._storage._peers.items():
2141 d.addCallback(_get_readcap)
2142 d.addCallback(lambda res: self._fn3.check_and_repair(Monitor()))
2143 def _check_results(crr):
2144 self.failUnless(ICheckAndRepairResults.providedBy(crr))
2145 # we should detect the unhealthy, but skip over mutable-readcap
2146 # repairs until #625 is fixed
2147 self.failIf(crr.get_pre_repair_results().is_healthy())
2148 self.failIf(crr.get_repair_attempted())
2149 self.failIf(crr.get_post_repair_results().is_healthy())
2150 d.addCallback(_check_results)
2153 def test_repair_empty(self):
2154 # bug 1689: delete one share of an empty mutable file, then repair.
2155 # In the buggy version, the check that precedes the retrieve+publish
2156 # cycle uses MODE_READ, instead of MODE_REPAIR, and fails to get the
2157 # privkey that repair needs.
2158 d = self.publish_empty_sdmf()
2159 def _delete_one_share(ign):
2160 shares = self._storage._peers
2161 for peerid in shares:
2162 for shnum in list(shares[peerid]):
2164 del shares[peerid][shnum]
2165 d.addCallback(_delete_one_share)
2166 d.addCallback(lambda ign: self._fn2.check(Monitor()))
2167 d.addCallback(lambda check_results: self._fn2.repair(check_results))
2169 self.failUnlessEqual(crr.get_successful(), True)
2170 d.addCallback(_check)
2173 class DevNullDictionary(dict):
2174 def __setitem__(self, key, value):
2177 class MultipleEncodings(unittest.TestCase):
2179 self.CONTENTS = "New contents go here"
2180 self.uploadable = MutableData(self.CONTENTS)
2181 self._storage = FakeStorage()
2182 self._nodemaker = make_nodemaker(self._storage, num_peers=20)
2183 self._storage_broker = self._nodemaker.storage_broker
2184 d = self._nodemaker.create_mutable_file(self.uploadable)
2187 d.addCallback(_created)
2190 def _encode(self, k, n, data, version=SDMF_VERSION):
2191 # encode 'data' into a peerid->shares dict.
2194 # disable the nodecache, since for these tests we explicitly need
2195 # multiple nodes pointing at the same file
2196 self._nodemaker._node_cache = DevNullDictionary()
2197 fn2 = self._nodemaker.create_from_cap(fn.get_uri())
2198 # then we copy over other fields that are normally fetched from the
2200 fn2._pubkey = fn._pubkey
2201 fn2._privkey = fn._privkey
2202 fn2._encprivkey = fn._encprivkey
2203 # and set the encoding parameters to something completely different
2204 fn2._required_shares = k
2205 fn2._total_shares = n
2208 s._peers = {} # clear existing storage
2209 p2 = Publish(fn2, self._storage_broker, None)
2210 uploadable = MutableData(data)
2211 d = p2.publish(uploadable)
2212 def _published(res):
2216 d.addCallback(_published)
2219 def make_servermap(self, mode=MODE_READ, oldmap=None):
2221 oldmap = ServerMap()
2222 smu = ServermapUpdater(self._fn, self._storage_broker, Monitor(),
2227 def test_multiple_encodings(self):
2228 # we encode the same file in two different ways (3-of-10 and 4-of-9),
2229 # then mix up the shares, to make sure that download survives seeing
2230 # a variety of encodings. This is actually kind of tricky to set up.
2232 contents1 = "Contents for encoding 1 (3-of-10) go here"*1000
2233 contents2 = "Contents for encoding 2 (4-of-9) go here"*1000
2234 contents3 = "Contents for encoding 3 (4-of-7) go here"*1000
2236 # we make a retrieval object that doesn't know what encoding
2238 fn3 = self._nodemaker.create_from_cap(self._fn.get_uri())
2240 # now we upload a file through fn1, and grab its shares
2241 d = self._encode(3, 10, contents1)
2242 def _encoded_1(shares):
2243 self._shares1 = shares
2244 d.addCallback(_encoded_1)
2245 d.addCallback(lambda res: self._encode(4, 9, contents2))
2246 def _encoded_2(shares):
2247 self._shares2 = shares
2248 d.addCallback(_encoded_2)
2249 d.addCallback(lambda res: self._encode(4, 7, contents3))
2250 def _encoded_3(shares):
2251 self._shares3 = shares
2252 d.addCallback(_encoded_3)
2255 log.msg("merging sharelists")
2256 # we merge the shares from the two sets, leaving each shnum in
2257 # its original location, but using a share from set1 or set2
2258 # according to the following sequence:
2269 # so that neither form can be recovered until fetch [f], at which
2270 # point version-s1 (the 3-of-10 form) should be recoverable. If
2271 # the implementation latches on to the first version it sees,
2272 # then s2 will be recoverable at fetch [g].
2274 # Later, when we implement code that handles multiple versions,
2275 # we can use this framework to assert that all recoverable
2276 # versions are retrieved, and test that 'epsilon' does its job
2278 places = [2, 2, 3, 2, 1, 1, 1, 2]
2281 sb = self._storage_broker
2283 for peerid in sorted(sb.get_all_serverids()):
2284 for shnum in self._shares1.get(peerid, {}):
2285 if shnum < len(places):
2286 which = places[shnum]
2289 self._storage._peers[peerid] = peers = {}
2290 in_1 = shnum in self._shares1[peerid]
2291 in_2 = shnum in self._shares2.get(peerid, {})
2292 in_3 = shnum in self._shares3.get(peerid, {})
2295 peers[shnum] = self._shares1[peerid][shnum]
2296 sharemap[shnum] = peerid
2299 peers[shnum] = self._shares2[peerid][shnum]
2300 sharemap[shnum] = peerid
2303 peers[shnum] = self._shares3[peerid][shnum]
2304 sharemap[shnum] = peerid
2306 # we don't bother placing any other shares
2307 # now sort the sequence so that share 0 is returned first
2308 new_sequence = [sharemap[shnum]
2309 for shnum in sorted(sharemap.keys())]
2310 self._storage._sequence = new_sequence
2311 log.msg("merge done")
2312 d.addCallback(_merge)
2313 d.addCallback(lambda res: fn3.download_best_version())
2314 def _retrieved(new_contents):
2315 # the current specified behavior is "first version recoverable"
2316 self.failUnlessEqual(new_contents, contents1)
2317 d.addCallback(_retrieved)
2321 class MultipleVersions(unittest.TestCase, PublishMixin, CheckerMixin):
2324 return self.publish_multiple()
2326 def test_multiple_versions(self):
2327 # if we see a mix of versions in the grid, download_best_version
2328 # should get the latest one
2329 self._set_versions(dict([(i,2) for i in (0,2,4,6,8)]))
2330 d = self._fn.download_best_version()
2331 d.addCallback(lambda res: self.failUnlessEqual(res, self.CONTENTS[4]))
2332 # and the checker should report problems
2333 d.addCallback(lambda res: self._fn.check(Monitor()))
2334 d.addCallback(self.check_bad, "test_multiple_versions")
2336 # but if everything is at version 2, that's what we should download
2337 d.addCallback(lambda res:
2338 self._set_versions(dict([(i,2) for i in range(10)])))
2339 d.addCallback(lambda res: self._fn.download_best_version())
2340 d.addCallback(lambda res: self.failUnlessEqual(res, self.CONTENTS[2]))
2341 # if exactly one share is at version 3, we should still get v2
2342 d.addCallback(lambda res:
2343 self._set_versions({0:3}))
2344 d.addCallback(lambda res: self._fn.download_best_version())
2345 d.addCallback(lambda res: self.failUnlessEqual(res, self.CONTENTS[2]))
2346 # but the servermap should see the unrecoverable version. This
2347 # depends upon the single newer share being queried early.
2348 d.addCallback(lambda res: self._fn.get_servermap(MODE_READ))
2349 def _check_smap(smap):
2350 self.failUnlessEqual(len(smap.unrecoverable_versions()), 1)
2351 newer = smap.unrecoverable_newer_versions()
2352 self.failUnlessEqual(len(newer), 1)
2353 verinfo, health = newer.items()[0]
2354 self.failUnlessEqual(verinfo[0], 4)
2355 self.failUnlessEqual(health, (1,3))
2356 self.failIf(smap.needs_merge())
2357 d.addCallback(_check_smap)
2358 # if we have a mix of two parallel versions (s4a and s4b), we could
2360 d.addCallback(lambda res:
2361 self._set_versions({0:3,2:3,4:3,6:3,8:3,
2362 1:4,3:4,5:4,7:4,9:4}))
2363 d.addCallback(lambda res: self._fn.get_servermap(MODE_READ))
2364 def _check_smap_mixed(smap):
2365 self.failUnlessEqual(len(smap.unrecoverable_versions()), 0)
2366 newer = smap.unrecoverable_newer_versions()
2367 self.failUnlessEqual(len(newer), 0)
2368 self.failUnless(smap.needs_merge())
2369 d.addCallback(_check_smap_mixed)
2370 d.addCallback(lambda res: self._fn.download_best_version())
2371 d.addCallback(lambda res: self.failUnless(res == self.CONTENTS[3] or
2372 res == self.CONTENTS[4]))
2375 def test_replace(self):
2376 # if we see a mix of versions in the grid, we should be able to
2377 # replace them all with a newer version
2379 # if exactly one share is at version 3, we should download (and
2380 # replace) v2, and the result should be v4. Note that the index we
2381 # give to _set_versions is different than the sequence number.
2382 target = dict([(i,2) for i in range(10)]) # seqnum3
2383 target[0] = 3 # seqnum4
2384 self._set_versions(target)
2386 def _modify(oldversion, servermap, first_time):
2387 return oldversion + " modified"
2388 d = self._fn.modify(_modify)
2389 d.addCallback(lambda res: self._fn.download_best_version())
2390 expected = self.CONTENTS[2] + " modified"
2391 d.addCallback(lambda res: self.failUnlessEqual(res, expected))
2392 # and the servermap should indicate that the outlier was replaced too
2393 d.addCallback(lambda res: self._fn.get_servermap(MODE_CHECK))
2394 def _check_smap(smap):
2395 self.failUnlessEqual(smap.highest_seqnum(), 5)
2396 self.failUnlessEqual(len(smap.unrecoverable_versions()), 0)
2397 self.failUnlessEqual(len(smap.recoverable_versions()), 1)
2398 d.addCallback(_check_smap)
2402 class Exceptions(unittest.TestCase):
2403 def test_repr(self):
2404 nmde = NeedMoreDataError(100, 50, 100)
2405 self.failUnless("NeedMoreDataError" in repr(nmde), repr(nmde))
2406 ucwe = UncoordinatedWriteError()
2407 self.failUnless("UncoordinatedWriteError" in repr(ucwe), repr(ucwe))
2410 class SameKeyGenerator:
2411 def __init__(self, pubkey, privkey):
2412 self.pubkey = pubkey
2413 self.privkey = privkey
2414 def generate(self, keysize=None):
2415 return defer.succeed( (self.pubkey, self.privkey) )
2417 class FirstServerGetsKilled:
2419 def notify(self, retval, wrapper, methname):
2421 wrapper.broken = True
2425 class FirstServerGetsDeleted:
2428 self.silenced = None
2429 def notify(self, retval, wrapper, methname):
2431 # this query will work, but later queries should think the share
2434 self.silenced = wrapper
2436 if wrapper == self.silenced:
2437 assert methname == "slot_testv_and_readv_and_writev"
2441 class Problems(GridTestMixin, unittest.TestCase, testutil.ShouldFailMixin):
2442 def do_publish_surprise(self, version):
2443 self.basedir = "mutable/Problems/test_publish_surprise_%s" % version
2445 nm = self.g.clients[0].nodemaker
2446 d = nm.create_mutable_file(MutableData("contents 1"),
2449 d = defer.succeed(None)
2450 d.addCallback(lambda res: n.get_servermap(MODE_WRITE))
2451 def _got_smap1(smap):
2452 # stash the old state of the file
2454 d.addCallback(_got_smap1)
2455 # then modify the file, leaving the old map untouched
2456 d.addCallback(lambda res: log.msg("starting winning write"))
2457 d.addCallback(lambda res: n.overwrite(MutableData("contents 2")))
2458 # now attempt to modify the file with the old servermap. This
2459 # will look just like an uncoordinated write, in which every
2460 # single share got updated between our mapupdate and our publish
2461 d.addCallback(lambda res: log.msg("starting doomed write"))
2462 d.addCallback(lambda res:
2463 self.shouldFail(UncoordinatedWriteError,
2464 "test_publish_surprise", None,
2466 MutableData("contents 2a"), self.old_map))
2468 d.addCallback(_created)
2471 def test_publish_surprise_sdmf(self):
2472 return self.do_publish_surprise(SDMF_VERSION)
2474 def test_publish_surprise_mdmf(self):
2475 return self.do_publish_surprise(MDMF_VERSION)
2477 def test_retrieve_surprise(self):
2478 self.basedir = "mutable/Problems/test_retrieve_surprise"
2480 nm = self.g.clients[0].nodemaker
2481 d = nm.create_mutable_file(MutableData("contents 1"*4000))
2483 d = defer.succeed(None)
2484 d.addCallback(lambda res: n.get_servermap(MODE_READ))
2485 def _got_smap1(smap):
2486 # stash the old state of the file
2488 d.addCallback(_got_smap1)
2489 # then modify the file, leaving the old map untouched
2490 d.addCallback(lambda res: log.msg("starting winning write"))
2491 d.addCallback(lambda res: n.overwrite(MutableData("contents 2")))
2492 # now attempt to retrieve the old version with the old servermap.
2493 # This will look like someone has changed the file since we
2494 # updated the servermap.
2495 d.addCallback(lambda res: log.msg("starting doomed read"))
2496 d.addCallback(lambda res:
2497 self.shouldFail(NotEnoughSharesError,
2498 "test_retrieve_surprise",
2499 "ran out of servers: have 0 of 1",
2502 self.old_map.best_recoverable_version(),
2505 d.addCallback(_created)
2509 def test_unexpected_shares(self):
2510 # upload the file, take a servermap, shut down one of the servers,
2511 # upload it again (causing shares to appear on a new server), then
2512 # upload using the old servermap. The last upload should fail with an
2513 # UncoordinatedWriteError, because of the shares that didn't appear
2515 self.basedir = "mutable/Problems/test_unexpected_shares"
2517 nm = self.g.clients[0].nodemaker
2518 d = nm.create_mutable_file(MutableData("contents 1"))
2520 d = defer.succeed(None)
2521 d.addCallback(lambda res: n.get_servermap(MODE_WRITE))
2522 def _got_smap1(smap):
2523 # stash the old state of the file
2525 # now shut down one of the servers
2526 peer0 = list(smap.make_sharemap()[0])[0].get_serverid()
2527 self.g.remove_server(peer0)
2528 # then modify the file, leaving the old map untouched
2529 log.msg("starting winning write")
2530 return n.overwrite(MutableData("contents 2"))
2531 d.addCallback(_got_smap1)
2532 # now attempt to modify the file with the old servermap. This
2533 # will look just like an uncoordinated write, in which every
2534 # single share got updated between our mapupdate and our publish
2535 d.addCallback(lambda res: log.msg("starting doomed write"))
2536 d.addCallback(lambda res:
2537 self.shouldFail(UncoordinatedWriteError,
2538 "test_surprise", None,
2540 MutableData("contents 2a"), self.old_map))
2542 d.addCallback(_created)
2545 def test_multiply_placed_shares(self):
2546 self.basedir = "mutable/Problems/test_multiply_placed_shares"
2548 nm = self.g.clients[0].nodemaker
2549 d = nm.create_mutable_file(MutableData("contents 1"))
2550 # remove one of the servers and reupload the file.
2554 servers = self.g.get_all_serverids()
2555 self.ss = self.g.remove_server(servers[len(servers)-1])
2557 new_server = self.g.make_server(len(servers)-1)
2558 self.g.add_server(len(servers)-1, new_server)
2560 return self._node.download_best_version()
2561 d.addCallback(_created)
2562 d.addCallback(lambda data: MutableData(data))
2563 d.addCallback(lambda data: self._node.overwrite(data))
2565 # restore the server we removed earlier, then download+upload
2567 def _overwritten(ign):
2568 self.g.add_server(len(self.g.servers_by_number), self.ss)
2569 return self._node.download_best_version()
2570 d.addCallback(_overwritten)
2571 d.addCallback(lambda data: MutableData(data))
2572 d.addCallback(lambda data: self._node.overwrite(data))
2573 d.addCallback(lambda ignored:
2574 self._node.get_servermap(MODE_CHECK))
2575 def _overwritten_again(smap):
2576 # Make sure that all shares were updated by making sure that
2577 # there aren't any other versions in the sharemap.
2578 self.failUnlessEqual(len(smap.recoverable_versions()), 1)
2579 self.failUnlessEqual(len(smap.unrecoverable_versions()), 0)
2580 d.addCallback(_overwritten_again)
2583 def test_bad_server(self):
2584 # Break one server, then create the file: the initial publish should
2585 # complete with an alternate server. Breaking a second server should
2586 # not prevent an update from succeeding either.
2587 self.basedir = "mutable/Problems/test_bad_server"
2589 nm = self.g.clients[0].nodemaker
2591 # to make sure that one of the initial peers is broken, we have to
2592 # get creative. We create an RSA key and compute its storage-index.
2593 # Then we make a KeyGenerator that always returns that one key, and
2594 # use it to create the mutable file. This will get easier when we can
2595 # use #467 static-server-selection to disable permutation and force
2596 # the choice of server for share[0].
2598 d = nm.key_generator.generate(TEST_RSA_KEY_SIZE)
2599 def _got_key( (pubkey, privkey) ):
2600 nm.key_generator = SameKeyGenerator(pubkey, privkey)
2601 pubkey_s = pubkey.serialize()
2602 privkey_s = privkey.serialize()
2603 u = uri.WriteableSSKFileURI(ssk_writekey_hash(privkey_s),
2604 ssk_pubkey_fingerprint_hash(pubkey_s))
2605 self._storage_index = u.get_storage_index()
2606 d.addCallback(_got_key)
2607 def _break_peer0(res):
2608 si = self._storage_index
2609 servers = nm.storage_broker.get_servers_for_psi(si)
2610 self.g.break_server(servers[0].get_serverid())
2611 self.server1 = servers[1]
2612 d.addCallback(_break_peer0)
2613 # now "create" the file, using the pre-established key, and let the
2614 # initial publish finally happen
2615 d.addCallback(lambda res: nm.create_mutable_file(MutableData("contents 1")))
2616 # that ought to work
2618 d = n.download_best_version()
2619 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 1"))
2620 # now break the second peer
2621 def _break_peer1(res):
2622 self.g.break_server(self.server1.get_serverid())
2623 d.addCallback(_break_peer1)
2624 d.addCallback(lambda res: n.overwrite(MutableData("contents 2")))
2625 # that ought to work too
2626 d.addCallback(lambda res: n.download_best_version())
2627 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 2"))
2628 def _explain_error(f):
2630 if f.check(NotEnoughServersError):
2631 print "first_error:", f.value.first_error
2633 d.addErrback(_explain_error)
2635 d.addCallback(_got_node)
2638 def test_bad_server_overlap(self):
2639 # like test_bad_server, but with no extra unused servers to fall back
2640 # upon. This means that we must re-use a server which we've already
2641 # used. If we don't remember the fact that we sent them one share
2642 # already, we'll mistakenly think we're experiencing an
2643 # UncoordinatedWriteError.
2645 # Break one server, then create the file: the initial publish should
2646 # complete with an alternate server. Breaking a second server should
2647 # not prevent an update from succeeding either.
2648 self.basedir = "mutable/Problems/test_bad_server_overlap"
2650 nm = self.g.clients[0].nodemaker
2651 sb = nm.storage_broker
2653 peerids = [s.get_serverid() for s in sb.get_connected_servers()]
2654 self.g.break_server(peerids[0])
2656 d = nm.create_mutable_file(MutableData("contents 1"))
2658 d = n.download_best_version()
2659 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 1"))
2660 # now break one of the remaining servers
2661 def _break_second_server(res):
2662 self.g.break_server(peerids[1])
2663 d.addCallback(_break_second_server)
2664 d.addCallback(lambda res: n.overwrite(MutableData("contents 2")))
2665 # that ought to work too
2666 d.addCallback(lambda res: n.download_best_version())
2667 d.addCallback(lambda res: self.failUnlessEqual(res, "contents 2"))
2669 d.addCallback(_created)
2672 def test_publish_all_servers_bad(self):
2673 # Break all servers: the publish should fail
2674 self.basedir = "mutable/Problems/test_publish_all_servers_bad"
2676 nm = self.g.clients[0].nodemaker
2677 for s in nm.storage_broker.get_connected_servers():
2678 s.get_rref().broken = True
2680 d = self.shouldFail(NotEnoughServersError,
2681 "test_publish_all_servers_bad",
2682 "ran out of good servers",
2683 nm.create_mutable_file, MutableData("contents"))
2686 def test_publish_no_servers(self):
2687 # no servers at all: the publish should fail
2688 self.basedir = "mutable/Problems/test_publish_no_servers"
2689 self.set_up_grid(num_servers=0)
2690 nm = self.g.clients[0].nodemaker
2692 d = self.shouldFail(NotEnoughServersError,
2693 "test_publish_no_servers",
2694 "Ran out of non-bad servers",
2695 nm.create_mutable_file, MutableData("contents"))
2699 def test_privkey_query_error(self):
2700 # when a servermap is updated with MODE_WRITE, it tries to get the
2701 # privkey. Something might go wrong during this query attempt.
2702 # Exercise the code in _privkey_query_failed which tries to handle
2704 self.basedir = "mutable/Problems/test_privkey_query_error"
2705 self.set_up_grid(num_servers=20)
2706 nm = self.g.clients[0].nodemaker
2707 nm._node_cache = DevNullDictionary() # disable the nodecache
2709 # we need some contents that are large enough to push the privkey out
2710 # of the early part of the file
2711 LARGE = "These are Larger contents" * 2000 # about 50KB
2712 LARGE_uploadable = MutableData(LARGE)
2713 d = nm.create_mutable_file(LARGE_uploadable)
2715 self.uri = n.get_uri()
2716 self.n2 = nm.create_from_cap(self.uri)
2718 # When a mapupdate is performed on a node that doesn't yet know
2719 # the privkey, a short read is sent to a batch of servers, to get
2720 # the verinfo and (hopefully, if the file is short enough) the
2721 # encprivkey. Our file is too large to let this first read
2722 # contain the encprivkey. Each non-encprivkey-bearing response
2723 # that arrives (until the node gets the encprivkey) will trigger
2724 # a second read to specifically read the encprivkey.
2726 # So, to exercise this case:
2727 # 1. notice which server gets a read() call first
2728 # 2. tell that server to start throwing errors
2729 killer = FirstServerGetsKilled()
2730 for s in nm.storage_broker.get_connected_servers():
2731 s.get_rref().post_call_notifier = killer.notify
2732 d.addCallback(_created)
2734 # now we update a servermap from a new node (which doesn't have the
2735 # privkey yet, forcing it to use a separate privkey query). Note that
2736 # the map-update will succeed, since we'll just get a copy from one
2737 # of the other shares.
2738 d.addCallback(lambda res: self.n2.get_servermap(MODE_WRITE))
2742 def test_privkey_query_missing(self):
2743 # like test_privkey_query_error, but the shares are deleted by the
2744 # second query, instead of raising an exception.
2745 self.basedir = "mutable/Problems/test_privkey_query_missing"
2746 self.set_up_grid(num_servers=20)
2747 nm = self.g.clients[0].nodemaker
2748 LARGE = "These are Larger contents" * 2000 # about 50KiB
2749 LARGE_uploadable = MutableData(LARGE)
2750 nm._node_cache = DevNullDictionary() # disable the nodecache
2752 d = nm.create_mutable_file(LARGE_uploadable)
2754 self.uri = n.get_uri()
2755 self.n2 = nm.create_from_cap(self.uri)
2756 deleter = FirstServerGetsDeleted()
2757 for s in nm.storage_broker.get_connected_servers():
2758 s.get_rref().post_call_notifier = deleter.notify
2759 d.addCallback(_created)
2760 d.addCallback(lambda res: self.n2.get_servermap(MODE_WRITE))
2764 def test_block_and_hash_query_error(self):
2765 # This tests for what happens when a query to a remote server
2766 # fails in either the hash validation step or the block getting
2767 # step (because of batching, this is the same actual query).
2768 # We need to have the storage server persist up until the point
2769 # that its prefix is validated, then suddenly die. This
2770 # exercises some exception handling code in Retrieve.
2771 self.basedir = "mutable/Problems/test_block_and_hash_query_error"
2772 self.set_up_grid(num_servers=20)
2773 nm = self.g.clients[0].nodemaker
2774 CONTENTS = "contents" * 2000
2775 CONTENTS_uploadable = MutableData(CONTENTS)
2776 d = nm.create_mutable_file(CONTENTS_uploadable)
2779 d.addCallback(_created)
2780 d.addCallback(lambda ignored:
2781 self._node.get_servermap(MODE_READ))
2782 def _then(servermap):
2783 # we have our servermap. Now we set up the servers like the
2784 # tests above -- the first one that gets a read call should
2785 # start throwing errors, but only after returning its prefix
2786 # for validation. Since we'll download without fetching the
2787 # private key, the next query to the remote server will be
2788 # for either a block and salt or for hashes, either of which
2789 # will exercise the error handling code.
2790 killer = FirstServerGetsKilled()
2791 for s in nm.storage_broker.get_connected_servers():
2792 s.get_rref().post_call_notifier = killer.notify
2793 ver = servermap.best_recoverable_version()
2795 return self._node.download_version(servermap, ver)
2796 d.addCallback(_then)
2797 d.addCallback(lambda data:
2798 self.failUnlessEqual(data, CONTENTS))
2801 def test_1654(self):
2802 # test that the Retrieve object unconditionally verifies the block
2803 # hash tree root for mutable shares. The failure mode is that
2804 # carefully crafted shares can cause undetected corruption (the
2805 # retrieve appears to finish successfully, but the result is
2806 # corrupted). When fixed, these shares always cause a
2807 # CorruptShareError, which results in NotEnoughSharesError in this
2809 self.basedir = "mutable/Problems/test_1654"
2810 self.set_up_grid(num_servers=2)
2811 cap = uri.from_string(TEST_1654_CAP)
2812 si = cap.get_storage_index()
2814 for share, shnum in [(TEST_1654_SH0, 0), (TEST_1654_SH1, 1)]:
2815 sharedata = base64.b64decode(share)
2816 storedir = self.get_serverdir(shnum)
2817 storage_path = os.path.join(storedir, "shares",
2818 storage_index_to_dir(si))
2819 fileutil.make_dirs(storage_path)
2820 fileutil.write(os.path.join(storage_path, "%d" % shnum),
2823 nm = self.g.clients[0].nodemaker
2824 n = nm.create_from_cap(TEST_1654_CAP)
2825 # to exercise the problem correctly, we must ensure that sh0 is
2826 # processed first, and sh1 second. NoNetworkGrid has facilities to
2827 # stall the first request from a single server, but it's not
2828 # currently easy to extend that to stall the second request (mutable
2829 # retrievals will see two: first the mapupdate, then the fetch).
2830 # However, repeated executions of this run without the #1654 fix
2831 # suggests that we're failing reliably even without explicit stalls,
2832 # probably because the servers are queried in a fixed order. So I'm
2833 # ok with relying upon that.
2834 d = self.shouldFail(NotEnoughSharesError, "test #1654 share corruption",
2835 "ran out of servers",
2836 n.download_best_version)
2840 TEST_1654_CAP = "URI:SSK:6jthysgozssjnagqlcxjq7recm:yxawei54fmf2ijkrvs2shs6iey4kpdp6joi7brj2vrva6sp5nf3a"
2842 TEST_1654_SH0 = """\
2843 VGFob2UgbXV0YWJsZSBjb250YWluZXIgdjEKdQlEA46m9s5j6lnzsOHytBTs2JOo
2844 AkWe8058hyrDa8igfBSqZMKO3aDOrFuRVt0ySYZ6oihFqPJRAAAAAAAAB8YAAAAA
2845 AAAJmgAAAAFPNgDkK8brSCzKz6n8HFqzbnAlALvnaB0Qpa1Bjo9jiZdmeMyneHR+
2846 UoJcDb1Ls+lVLeUqP2JitBEXdCzcF/X2YMDlmKb2zmPqWfOw4fK0FOzYk6gCRZ7z
2847 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2848 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2849 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2850 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2851 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2852 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABCDwr
2853 uIlhFlv21pDqyMeA9X1wHp98a1CKY4qfC7gn5exyODAcnhZKHCV18XBerbZLAgIA
2854 AAAAAAAAJgAAAAAAAAAmAAABjwAAAo8AAALTAAAC8wAAAAAAAAMGAAAAAAAAB8Yw
2855 ggEgMA0GCSqGSIb3DQEBAQUAA4IBDQAwggEIAoIBAQCXKMor062nfxHVutMbqNcj
2856 vVC92wXTcQulenNWEX+0huK54igTAG60p0lZ6FpBJ9A+dlStT386bn5I6qe50ky5
2857 CFodQSsQX+1yByMFlzqPDo4rclk/6oVySLypxnt/iBs3FPZ4zruhYXcITc6zaYYU
2858 Xqaw/C86g6M06MWQKsGev7PS3tH7q+dtovWzDgU13Q8PG2whGvGNfxPOmEX4j0wL
2859 FCBavpFnLpo3bJrj27V33HXxpPz3NP+fkaG0pKH03ANd/yYHfGf74dC+eD5dvWBM
2860 DU6fZQN4k/T+cth+qzjS52FPPTY9IHXIb4y+1HryVvxcx6JDifKoOzpFc3SDbBAP
2861 AgERKDjOFxVClH81DF/QkqpP0glOh6uTsFNx8Nes02q0d7iip2WqfG9m2+LmiWy8
2862 Pg7RlQQy2M45gert1EDsH4OI69uxteviZP1Mo0wD6HjmWUbGIQRmsT3DmYEZCCMA
2863 /KjhNmlov2+OhVxIaHwE7aN840IfkGdJ/JssB6Z/Ym3+ou4+jAYKhifPQGrpBVjd
2864 73oH6w9StnoGYIrEEQw8LFc4jnAFYciKlPuo6E6E3zDseE7gwkcOpCtVVksZu6Ii
2865 GQgIV8vjFbNz9M//RMXOBTwKFDiG08IAPh7fv2uKzFis0TFrR7sQcMQ/kZZCLPPi
2866 ECIX95NRoFRlxK/1kZ1+FuuDQgABz9+5yd/pjkVybmvc7Jr70bOVpxvRoI2ZEgh/
2867 +QdxfcwAAm5iDnzPtsVdcbuNkKprfI8N4n+QmUOSMbAJ7M8r1cp4z9+5yd/pjkVy
2868 bmvc7Jr70bOVpxvRoI2ZEgh/+QdxfcxGzRV0shAW86irr5bDQOyyknYk0p2xw2Wn
2869 z6QccyXyobXPOFLO3ZBPnKaE58aaN7x3srQZYUKafet5ZMDX8fsQf2mbxnaeG5NF
2870 eO6wG++WBUo9leddnzKBnRcMGRAtJEjwfKMVPE8SmuTlL6kRc7n8wvY2ygClWlRm
2871 d7o95tZfoO+mexB/DLEpWLtlAiqh8yJ8cWaC5rYz4ZC2+z7QkeKXCHWAN3i4C++u
2872 dfZoD7qWnyAldYTydADwL885dVY7WN6NX9YtQrG3JGrp3wZvFrX5x9Jv7hls0A6l
2873 2xI4NlcSSrgWIjzrGdwQEjIUDyfc7DWroEpJEfIaSnjkeTT0D8WV5NqzWH8UwWoF
2874 wjwDltaQ3Y8O/wJPGBqBAJEob+p6QxvP5T2W1jnOvbgsMZLNDuY6FF1XcuR7yvNF
2875 sXKP6aXMV8BKSlrehFlpBMTu4HvJ1rZlKuxgR1A9njiaKD2U0NitCKMIpIXQxT6L
2876 eZn9M8Ky68m0Zjdw/WCsKz22GTljSM5Nfme32BrW+4G+R55ECwZ1oh08nrnWjXmw
2877 PlSHj2lwpnsuOG2fwJkyMnIIoIUII31VLATeLERD9HfMK8/+uZqJ2PftT2fhHL/u
2878 CDCIdEWSUBBHpA7p8BbgiZKCpYzf+pbS2/EJGL8gQAvSH1atGv/o0BiAd10MzTXC
2879 Xn5xDB1Yh+FtYPYloBGAwmxKieDMnsjy6wp5ovdmOc2y6KBr27DzgEGchLyOxHV4
2880 Q7u0Hkm7Om33ir1TUgK6bdPFL8rGNDOZq/SR4yn4qSsQTPD6Y/HQSK5GzkU4dGLw
2881 tU6GNpu142QE36NfWkoUWHKf1YgIYrlAGJWlj93et54ZGUZGVN7pAspZ+mvoMnDU
2882 Jh46nrQsEJiQz8AqgREck4Fi4S7Rmjh/AhXmzFWFca3YD0BmuYU6fxGTRPZ70eys
2883 LV5qPTmTGpX+bpvufAp0vznkiOdqTn1flnxdslM2AukiD6OwkX1dBH8AvzObhbz0
2884 ABhx3c+cAhAnYhJmsYaAwbpWpp8CM5opmsRgwgaz8f8lxiRfXbrWD8vdd4dm2B9J
2885 jaiGCR8/UXHFBGZhCgLB2S+BNXKynIeP+POGQtMIIERUtwOIKt1KfZ9jZwf/ulJK
2886 fv/VmBPmGu+CHvFIlHAzlxwJeUz8wSltUeeHjADZ9Wag5ESN3R6hsmJL+KL4av5v
2887 DFobNPiNWbc+4H+3wg1R0oK/uTQb8u1S7uWIGVmi5fJ4rVVZ/VKKtHGVwm/8OGKF
2888 tcrJFJcJADFVkgpsqN8UINsMJLxfJRoBgABEWih5DTRwNXK76Ma2LjDBrEvxhw8M
2889 7SLKhi5vH7/Cs7jfLZFgh2T6flDV4VM/EA7CYEHgEb8MFmioFGOmhUpqifkA3SdX
2890 jGi2KuZZ5+O+sHFWXsUjiFPEzUJF+syPEzH1aF5R+F8pkhifeYh0KP6OHd6Sgn8s
2891 TStXB+q0MndBXw5ADp/Jac1DVaSWruVAdjemQ+si1olk8xH+uTMXU7PgV9WkpIiy
2892 4BhnFU9IbCr/m7806c13xfeelaffP2pr7EDdgwz5K89VWCa3k9OSDnMtj2CQXlC7
2893 bQHi/oRGA1aHSn84SIt+HpAfRoVdr4N90bYWmYQNqfKoyWCbEr+dge/GSD1nddAJ
2894 72mXGlqyLyWYuAAAAAA="""
2896 TEST_1654_SH1 = """\
2897 VGFob2UgbXV0YWJsZSBjb250YWluZXIgdjEKdQlEA45R4Y4kuV458rSTGDVTqdzz
2898 9Fig3NQ3LermyD+0XLeqbC7KNgvv6cNzMZ9psQQ3FseYsIR1AAAAAAAAB8YAAAAA
2899 AAAJmgAAAAFPNgDkd/Y9Z+cuKctZk9gjwF8thT+fkmNCsulILsJw5StGHAA1f7uL
2900 MG73c5WBcesHB2epwazfbD3/0UZTlxXWXotywVHhjiS5XjnytJMYNVOp3PP0WKDc
2901 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2902 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2903 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2904 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2905 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
2906 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABCDwr
2907 uIlhFlv21pDqyMeA9X1wHp98a1CKY4qfC7gn5exyODAcnhZKHCV18XBerbZLAgIA
2908 AAAAAAAAJgAAAAAAAAAmAAABjwAAAo8AAALTAAAC8wAAAAAAAAMGAAAAAAAAB8Yw
2909 ggEgMA0GCSqGSIb3DQEBAQUAA4IBDQAwggEIAoIBAQCXKMor062nfxHVutMbqNcj
2910 vVC92wXTcQulenNWEX+0huK54igTAG60p0lZ6FpBJ9A+dlStT386bn5I6qe50ky5
2911 CFodQSsQX+1yByMFlzqPDo4rclk/6oVySLypxnt/iBs3FPZ4zruhYXcITc6zaYYU
2912 Xqaw/C86g6M06MWQKsGev7PS3tH7q+dtovWzDgU13Q8PG2whGvGNfxPOmEX4j0wL
2913 FCBavpFnLpo3bJrj27V33HXxpPz3NP+fkaG0pKH03ANd/yYHfGf74dC+eD5dvWBM
2914 DU6fZQN4k/T+cth+qzjS52FPPTY9IHXIb4y+1HryVvxcx6JDifKoOzpFc3SDbBAP
2915 AgERKDjOFxVClH81DF/QkqpP0glOh6uTsFNx8Nes02q0d7iip2WqfG9m2+LmiWy8
2916 Pg7RlQQy2M45gert1EDsH4OI69uxteviZP1Mo0wD6HjmWUbGIQRmsT3DmYEZCCMA
2917 /KjhNmlov2+OhVxIaHwE7aN840IfkGdJ/JssB6Z/Ym3+ou4+jAYKhifPQGrpBVjd
2918 73oH6w9StnoGYIrEEQw8LFc4jnAFYciKlPuo6E6E3zDseE7gwkcOpCtVVksZu6Ii
2919 GQgIV8vjFbNz9M//RMXOBTwKFDiG08IAPh7fv2uKzFis0TFrR7sQcMQ/kZZCLPPi
2920 ECIX95NRoFRlxK/1kZ1+FuuDQgABz9+5yd/pjkVybmvc7Jr70bOVpxvRoI2ZEgh/
2921 +QdxfcwAAm5iDnzPtsVdcbuNkKprfI8N4n+QmUOSMbAJ7M8r1cp40cTBnAw+rMKC
2922 98P4pURrotx116Kd0i3XmMZu81ew57H3Zb73r+syQCXZNOP0xhMDclIt0p2xw2Wn
2923 z6QccyXyobXPOFLO3ZBPnKaE58aaN7x3srQZYUKafet5ZMDX8fsQf2mbxnaeG5NF
2924 eO6wG++WBUo9leddnzKBnRcMGRAtJEjwfKMVPE8SmuTlL6kRc7n8wvY2ygClWlRm
2925 d7o95tZfoO+mexB/DLEpWLtlAiqh8yJ8cWaC5rYz4ZC2+z7QkeKXCHWAN3i4C++u
2926 dfZoD7qWnyAldYTydADwL885dVY7WN6NX9YtQrG3JGrp3wZvFrX5x9Jv7hls0A6l
2927 2xI4NlcSSrgWIjzrGdwQEjIUDyfc7DWroEpJEfIaSnjkeTT0D8WV5NqzWH8UwWoF
2928 wjwDltaQ3Y8O/wJPGBqBAJEob+p6QxvP5T2W1jnOvbgsMZLNDuY6FF1XcuR7yvNF
2929 sXKP6aXMV8BKSlrehFlpBMTu4HvJ1rZlKuxgR1A9njiaKD2U0NitCKMIpIXQxT6L
2930 eZn9M8Ky68m0Zjdw/WCsKz22GTljSM5Nfme32BrW+4G+R55ECwZ1oh08nrnWjXmw
2931 PlSHj2lwpnsuOG2fwJkyMnIIoIUII31VLATeLERD9HfMK8/+uZqJ2PftT2fhHL/u
2932 CDCIdEWSUBBHpA7p8BbgiZKCpYzf+pbS2/EJGL8gQAvSH1atGv/o0BiAd10MzTXC
2933 Xn5xDB1Yh+FtYPYloBGAwmxKieDMnsjy6wp5ovdmOc2y6KBr27DzgEGchLyOxHV4
2934 Q7u0Hkm7Om33ir1TUgK6bdPFL8rGNDOZq/SR4yn4qSsQTPD6Y/HQSK5GzkU4dGLw
2935 tU6GNpu142QE36NfWkoUWHKf1YgIYrlAGJWlj93et54ZGUZGVN7pAspZ+mvoMnDU
2936 Jh46nrQsEJiQz8AqgREck4Fi4S7Rmjh/AhXmzFWFca3YD0BmuYU6fxGTRPZ70eys
2937 LV5qPTmTGpX+bpvufAp0vznkiOdqTn1flnxdslM2AukiD6OwkX1dBH8AvzObhbz0
2938 ABhx3c+cAhAnYhJmsYaAwbpWpp8CM5opmsRgwgaz8f8lxiRfXbrWD8vdd4dm2B9J
2939 jaiGCR8/UXHFBGZhCgLB2S+BNXKynIeP+POGQtMIIERUtwOIKt1KfZ9jZwf/ulJK
2940 fv/VmBPmGu+CHvFIlHAzlxwJeUz8wSltUeeHjADZ9Wag5ESN3R6hsmJL+KL4av5v
2941 DFobNPiNWbc+4H+3wg1R0oK/uTQb8u1S7uWIGVmi5fJ4rVVZ/VKKtHGVwm/8OGKF
2942 tcrJFJcJADFVkgpsqN8UINsMJLxfJRoBgABEWih5DTRwNXK76Ma2LjDBrEvxhw8M
2943 7SLKhi5vH7/Cs7jfLZFgh2T6flDV4VM/EA7CYEHgEb8MFmioFGOmhUpqifkA3SdX
2944 jGi2KuZZ5+O+sHFWXsUjiFPEzUJF+syPEzH1aF5R+F8pkhifeYh0KP6OHd6Sgn8s
2945 TStXB+q0MndBXw5ADp/Jac1DVaSWruVAdjemQ+si1olk8xH+uTMXU7PgV9WkpIiy
2946 4BhnFU9IbCr/m7806c13xfeelaffP2pr7EDdgwz5K89VWCa3k9OSDnMtj2CQXlC7
2947 bQHi/oRGA1aHSn84SIt+HpAfRoVdr4N90bYWmYQNqfKoyWCbEr+dge/GSD1nddAJ
2948 72mXGlqyLyWYuAAAAAA="""
2951 class FileHandle(unittest.TestCase):
2953 self.test_data = "Test Data" * 50000
2954 self.sio = StringIO(self.test_data)
2955 self.uploadable = MutableFileHandle(self.sio)
2958 def test_filehandle_read(self):
2959 self.basedir = "mutable/FileHandle/test_filehandle_read"
2961 for i in xrange(0, len(self.test_data), chunk_size):
2962 data = self.uploadable.read(chunk_size)
2963 data = "".join(data)
2965 end = i + chunk_size
2966 self.failUnlessEqual(data, self.test_data[start:end])
2969 def test_filehandle_get_size(self):
2970 self.basedir = "mutable/FileHandle/test_filehandle_get_size"
2971 actual_size = len(self.test_data)
2972 size = self.uploadable.get_size()
2973 self.failUnlessEqual(size, actual_size)
2976 def test_filehandle_get_size_out_of_order(self):
2977 # We should be able to call get_size whenever we want without
2978 # disturbing the location of the seek pointer.
2980 data = self.uploadable.read(chunk_size)
2981 self.failUnlessEqual("".join(data), self.test_data[:chunk_size])
2984 size = self.uploadable.get_size()
2985 self.failUnlessEqual(size, len(self.test_data))
2987 # Now get more data. We should be right where we left off.
2988 more_data = self.uploadable.read(chunk_size)
2990 end = chunk_size * 2
2991 self.failUnlessEqual("".join(more_data), self.test_data[start:end])
2994 def test_filehandle_file(self):
2995 # Make sure that the MutableFileHandle works on a file as well
2996 # as a StringIO object, since in some cases it will be asked to
2998 self.basedir = self.mktemp()
2999 # necessary? What am I doing wrong here?
3000 os.mkdir(self.basedir)
3001 f_path = os.path.join(self.basedir, "test_file")
3002 f = open(f_path, "w")
3003 f.write(self.test_data)
3005 f = open(f_path, "r")
3007 uploadable = MutableFileHandle(f)
3009 data = uploadable.read(len(self.test_data))
3010 self.failUnlessEqual("".join(data), self.test_data)
3011 size = uploadable.get_size()
3012 self.failUnlessEqual(size, len(self.test_data))
3015 def test_close(self):
3016 # Make sure that the MutableFileHandle closes its handle when
3018 self.uploadable.close()
3019 self.failUnless(self.sio.closed)
3022 class DataHandle(unittest.TestCase):
3024 self.test_data = "Test Data" * 50000
3025 self.uploadable = MutableData(self.test_data)
3028 def test_datahandle_read(self):
3030 for i in xrange(0, len(self.test_data), chunk_size):
3031 data = self.uploadable.read(chunk_size)
3032 data = "".join(data)
3034 end = i + chunk_size
3035 self.failUnlessEqual(data, self.test_data[start:end])
3038 def test_datahandle_get_size(self):
3039 actual_size = len(self.test_data)
3040 size = self.uploadable.get_size()
3041 self.failUnlessEqual(size, actual_size)
3044 def test_datahandle_get_size_out_of_order(self):
3045 # We should be able to call get_size whenever we want without
3046 # disturbing the location of the seek pointer.
3048 data = self.uploadable.read(chunk_size)
3049 self.failUnlessEqual("".join(data), self.test_data[:chunk_size])
3052 size = self.uploadable.get_size()
3053 self.failUnlessEqual(size, len(self.test_data))
3055 # Now get more data. We should be right where we left off.
3056 more_data = self.uploadable.read(chunk_size)
3058 end = chunk_size * 2
3059 self.failUnlessEqual("".join(more_data), self.test_data[start:end])
3062 class Version(GridTestMixin, unittest.TestCase, testutil.ShouldFailMixin, \
3065 GridTestMixin.setUp(self)
3066 self.basedir = self.mktemp()
3068 self.c = self.g.clients[0]
3069 self.nm = self.c.nodemaker
3070 self.data = "test data" * 100000 # about 900 KiB; MDMF
3071 self.small_data = "test data" * 10 # about 90 B; SDMF
3074 def do_upload_mdmf(self):
3075 d = self.nm.create_mutable_file(MutableData(self.data),
3076 version=MDMF_VERSION)
3078 assert isinstance(n, MutableFileNode)
3079 assert n._protocol_version == MDMF_VERSION
3082 d.addCallback(_then)
3085 def do_upload_sdmf(self):
3086 d = self.nm.create_mutable_file(MutableData(self.small_data))
3088 assert isinstance(n, MutableFileNode)
3089 assert n._protocol_version == SDMF_VERSION
3092 d.addCallback(_then)
3095 def do_upload_empty_sdmf(self):
3096 d = self.nm.create_mutable_file(MutableData(""))
3098 assert isinstance(n, MutableFileNode)
3099 self.sdmf_zero_length_node = n
3100 assert n._protocol_version == SDMF_VERSION
3102 d.addCallback(_then)
3105 def do_upload(self):
3106 d = self.do_upload_mdmf()
3107 d.addCallback(lambda ign: self.do_upload_sdmf())
3110 def test_debug(self):
3111 d = self.do_upload_mdmf()
3113 fso = debug.FindSharesOptions()
3114 storage_index = base32.b2a(n.get_storage_index())
3115 fso.si_s = storage_index
3116 fso.nodedirs = [os.path.dirname(abspath_expanduser_unicode(unicode(storedir)))
3118 in self.iterate_servers()]
3119 fso.stdout = StringIO()
3120 fso.stderr = StringIO()
3121 debug.find_shares(fso)
3122 sharefiles = fso.stdout.getvalue().splitlines()
3123 expected = self.nm.default_encoding_parameters["n"]
3124 self.failUnlessEqual(len(sharefiles), expected)
3126 do = debug.DumpOptions()
3127 do["filename"] = sharefiles[0]
3128 do.stdout = StringIO()
3129 debug.dump_share(do)
3130 output = do.stdout.getvalue()
3131 lines = set(output.splitlines())
3132 self.failUnless("Mutable slot found:" in lines, output)
3133 self.failUnless(" share_type: MDMF" in lines, output)
3134 self.failUnless(" num_extra_leases: 0" in lines, output)
3135 self.failUnless(" MDMF contents:" in lines, output)
3136 self.failUnless(" seqnum: 1" in lines, output)
3137 self.failUnless(" required_shares: 3" in lines, output)
3138 self.failUnless(" total_shares: 10" in lines, output)
3139 self.failUnless(" segsize: 131073" in lines, output)
3140 self.failUnless(" datalen: %d" % len(self.data) in lines, output)
3141 vcap = n.get_verify_cap().to_string()
3142 self.failUnless(" verify-cap: %s" % vcap in lines, output)
3144 cso = debug.CatalogSharesOptions()
3145 cso.nodedirs = fso.nodedirs
3146 cso.stdout = StringIO()
3147 cso.stderr = StringIO()
3148 debug.catalog_shares(cso)
3149 shares = cso.stdout.getvalue().splitlines()
3150 oneshare = shares[0] # all shares should be MDMF
3151 self.failIf(oneshare.startswith("UNKNOWN"), oneshare)
3152 self.failUnless(oneshare.startswith("MDMF"), oneshare)
3153 fields = oneshare.split()
3154 self.failUnlessEqual(fields[0], "MDMF")
3155 self.failUnlessEqual(fields[1], storage_index)
3156 self.failUnlessEqual(fields[2], "3/10")
3157 self.failUnlessEqual(fields[3], "%d" % len(self.data))
3158 self.failUnless(fields[4].startswith("#1:"), fields[3])
3159 # the rest of fields[4] is the roothash, which depends upon
3160 # encryption salts and is not constant. fields[5] is the
3161 # remaining time on the longest lease, which is timing dependent.
3162 # The rest of the line is the quoted pathname to the share.
3163 d.addCallback(_debug)
3166 def test_get_sequence_number(self):
3167 d = self.do_upload()
3168 d.addCallback(lambda ign: self.mdmf_node.get_best_readable_version())
3169 d.addCallback(lambda bv:
3170 self.failUnlessEqual(bv.get_sequence_number(), 1))
3171 d.addCallback(lambda ignored:
3172 self.sdmf_node.get_best_readable_version())
3173 d.addCallback(lambda bv:
3174 self.failUnlessEqual(bv.get_sequence_number(), 1))
3175 # Now update. The sequence number in both cases should be 1 in
3177 def _do_update(ignored):
3178 new_data = MutableData("foo bar baz" * 100000)
3179 new_small_data = MutableData("foo bar baz" * 10)
3180 d1 = self.mdmf_node.overwrite(new_data)
3181 d2 = self.sdmf_node.overwrite(new_small_data)
3182 dl = gatherResults([d1, d2])
3184 d.addCallback(_do_update)
3185 d.addCallback(lambda ignored:
3186 self.mdmf_node.get_best_readable_version())
3187 d.addCallback(lambda bv:
3188 self.failUnlessEqual(bv.get_sequence_number(), 2))
3189 d.addCallback(lambda ignored:
3190 self.sdmf_node.get_best_readable_version())
3191 d.addCallback(lambda bv:
3192 self.failUnlessEqual(bv.get_sequence_number(), 2))
3196 def test_cap_after_upload(self):
3197 # If we create a new mutable file and upload things to it, and
3198 # it's an MDMF file, we should get an MDMF cap back from that
3199 # file and should be able to use that.
3200 # That's essentially what MDMF node is, so just check that.
3201 d = self.do_upload_mdmf()
3203 mdmf_uri = self.mdmf_node.get_uri()
3204 cap = uri.from_string(mdmf_uri)
3205 self.failUnless(isinstance(cap, uri.WriteableMDMFFileURI))
3206 readonly_mdmf_uri = self.mdmf_node.get_readonly_uri()
3207 cap = uri.from_string(readonly_mdmf_uri)
3208 self.failUnless(isinstance(cap, uri.ReadonlyMDMFFileURI))
3209 d.addCallback(_then)
3212 def test_mutable_version(self):
3213 # assert that getting parameters from the IMutableVersion object
3214 # gives us the same data as getting them from the filenode itself
3215 d = self.do_upload()
3216 d.addCallback(lambda ign: self.mdmf_node.get_best_mutable_version())
3217 def _check_mdmf(bv):
3219 self.failUnlessEqual(bv.get_writekey(), n.get_writekey())
3220 self.failUnlessEqual(bv.get_storage_index(), n.get_storage_index())
3221 self.failIf(bv.is_readonly())
3222 d.addCallback(_check_mdmf)
3223 d.addCallback(lambda ign: self.sdmf_node.get_best_mutable_version())
3224 def _check_sdmf(bv):
3226 self.failUnlessEqual(bv.get_writekey(), n.get_writekey())
3227 self.failUnlessEqual(bv.get_storage_index(), n.get_storage_index())
3228 self.failIf(bv.is_readonly())
3229 d.addCallback(_check_sdmf)
3233 def test_get_readonly_version(self):
3234 d = self.do_upload()
3235 d.addCallback(lambda ign: self.mdmf_node.get_best_readable_version())
3236 d.addCallback(lambda bv: self.failUnless(bv.is_readonly()))
3238 # Attempting to get a mutable version of a mutable file from a
3239 # filenode initialized with a readcap should return a readonly
3240 # version of that same node.
3241 d.addCallback(lambda ign: self.mdmf_node.get_readonly())
3242 d.addCallback(lambda ro: ro.get_best_mutable_version())
3243 d.addCallback(lambda v: self.failUnless(v.is_readonly()))
3245 d.addCallback(lambda ign: self.sdmf_node.get_best_readable_version())
3246 d.addCallback(lambda bv: self.failUnless(bv.is_readonly()))
3248 d.addCallback(lambda ign: self.sdmf_node.get_readonly())
3249 d.addCallback(lambda ro: ro.get_best_mutable_version())
3250 d.addCallback(lambda v: self.failUnless(v.is_readonly()))
3254 def test_toplevel_overwrite(self):
3255 new_data = MutableData("foo bar baz" * 100000)
3256 new_small_data = MutableData("foo bar baz" * 10)
3257 d = self.do_upload()
3258 d.addCallback(lambda ign: self.mdmf_node.overwrite(new_data))
3259 d.addCallback(lambda ignored:
3260 self.mdmf_node.download_best_version())
3261 d.addCallback(lambda data:
3262 self.failUnlessEqual(data, "foo bar baz" * 100000))
3263 d.addCallback(lambda ignored:
3264 self.sdmf_node.overwrite(new_small_data))
3265 d.addCallback(lambda ignored:
3266 self.sdmf_node.download_best_version())
3267 d.addCallback(lambda data:
3268 self.failUnlessEqual(data, "foo bar baz" * 10))
3272 def test_toplevel_modify(self):
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_version_modify(self):
3291 # TODO: When we can publish multiple versions, alter this test
3292 # to modify a version other than the best usable version, then
3293 # test to see that the best recoverable version is that.
3294 d = self.do_upload()
3295 def modifier(old_contents, servermap, first_time):
3296 return old_contents + "modified"
3297 d.addCallback(lambda ign: self.mdmf_node.modify(modifier))
3298 d.addCallback(lambda ignored:
3299 self.mdmf_node.download_best_version())
3300 d.addCallback(lambda data:
3301 self.failUnlessIn("modified", data))
3302 d.addCallback(lambda ignored:
3303 self.sdmf_node.modify(modifier))
3304 d.addCallback(lambda ignored:
3305 self.sdmf_node.download_best_version())
3306 d.addCallback(lambda data:
3307 self.failUnlessIn("modified", data))
3311 def test_download_version(self):
3312 d = self.publish_multiple()
3313 # We want to have two recoverable versions on the grid.
3314 d.addCallback(lambda res:
3315 self._set_versions({0:0,2:0,4:0,6:0,8:0,
3316 1:1,3:1,5:1,7:1,9:1}))
3317 # Now try to download each version. We should get the plaintext
3318 # associated with that version.
3319 d.addCallback(lambda ignored:
3320 self._fn.get_servermap(mode=MODE_READ))
3321 def _got_servermap(smap):
3322 versions = smap.recoverable_versions()
3323 assert len(versions) == 2
3325 self.servermap = smap
3326 self.version1, self.version2 = versions
3327 assert self.version1 != self.version2
3329 self.version1_seqnum = self.version1[0]
3330 self.version2_seqnum = self.version2[0]
3331 self.version1_index = self.version1_seqnum - 1
3332 self.version2_index = self.version2_seqnum - 1
3334 d.addCallback(_got_servermap)
3335 d.addCallback(lambda ignored:
3336 self._fn.download_version(self.servermap, self.version1))
3337 d.addCallback(lambda results:
3338 self.failUnlessEqual(self.CONTENTS[self.version1_index],
3340 d.addCallback(lambda ignored:
3341 self._fn.download_version(self.servermap, self.version2))
3342 d.addCallback(lambda results:
3343 self.failUnlessEqual(self.CONTENTS[self.version2_index],
3348 def test_download_nonexistent_version(self):
3349 d = self.do_upload_mdmf()
3350 d.addCallback(lambda ign: self.mdmf_node.get_servermap(mode=MODE_WRITE))
3351 def _set_servermap(servermap):
3352 self.servermap = servermap
3353 d.addCallback(_set_servermap)
3354 d.addCallback(lambda ignored:
3355 self.shouldFail(UnrecoverableFileError, "nonexistent version",
3357 self.mdmf_node.download_version, self.servermap,
3362 def test_partial_read(self):
3363 d = self.do_upload_mdmf()
3364 d.addCallback(lambda ign: self.mdmf_node.get_best_readable_version())
3365 modes = [("start_on_segment_boundary",
3366 mathutil.next_multiple(128 * 1024, 3), 50),
3367 ("ending_one_byte_after_segment_boundary",
3368 mathutil.next_multiple(128 * 1024, 3)-50, 51),
3369 ("zero_length_at_start", 0, 0),
3370 ("zero_length_in_middle", 50, 0),
3371 ("zero_length_at_segment_boundary",
3372 mathutil.next_multiple(128 * 1024, 3), 0),
3374 for (name, offset, length) in modes:
3375 d.addCallback(self._do_partial_read, name, offset, length)
3376 # then read only a few bytes at a time, and see that the results are
3378 def _read_data(version):
3379 c = consumer.MemoryConsumer()
3380 d2 = defer.succeed(None)
3381 for i in xrange(0, len(self.data), 10000):
3382 d2.addCallback(lambda ignored, i=i: version.read(c, i, 10000))
3383 d2.addCallback(lambda ignored:
3384 self.failUnlessEqual(self.data, "".join(c.chunks)))
3386 d.addCallback(_read_data)
3388 def _do_partial_read(self, version, name, offset, length):
3389 c = consumer.MemoryConsumer()
3390 d = version.read(c, offset, length)
3391 expected = self.data[offset:offset+length]
3392 d.addCallback(lambda ignored: "".join(c.chunks))
3393 def _check(results):
3394 if results != expected:
3396 print "got: %s ... %s" % (results[:20], results[-20:])
3397 print "exp: %s ... %s" % (expected[:20], expected[-20:])
3398 self.fail("results[%s] != expected" % name)
3399 return version # daisy-chained to next call
3400 d.addCallback(_check)
3404 def _test_read_and_download(self, node, expected):
3405 d = node.get_best_readable_version()
3406 def _read_data(version):
3407 c = consumer.MemoryConsumer()
3408 d2 = defer.succeed(None)
3409 d2.addCallback(lambda ignored: version.read(c))
3410 d2.addCallback(lambda ignored:
3411 self.failUnlessEqual(expected, "".join(c.chunks)))
3413 d.addCallback(_read_data)
3414 d.addCallback(lambda ignored: node.download_best_version())
3415 d.addCallback(lambda data: self.failUnlessEqual(expected, data))
3418 def test_read_and_download_mdmf(self):
3419 d = self.do_upload_mdmf()
3420 d.addCallback(self._test_read_and_download, self.data)
3423 def test_read_and_download_sdmf(self):
3424 d = self.do_upload_sdmf()
3425 d.addCallback(self._test_read_and_download, self.small_data)
3428 def test_read_and_download_sdmf_zero_length(self):
3429 d = self.do_upload_empty_sdmf()
3430 d.addCallback(self._test_read_and_download, "")
3434 class Update(GridTestMixin, unittest.TestCase, testutil.ShouldFailMixin):
3435 timeout = 400 # these tests are too big, 120s is not enough on slow
3438 GridTestMixin.setUp(self)
3439 self.basedir = self.mktemp()
3440 self.set_up_grid(num_servers=13)
3441 self.c = self.g.clients[0]
3442 self.nm = self.c.nodemaker
3443 self.data = "testdata " * 100000 # about 900 KiB; MDMF
3444 self.small_data = "test data" * 10 # about 90 B; SDMF
3447 def do_upload_sdmf(self):
3448 d = self.nm.create_mutable_file(MutableData(self.small_data))
3450 assert isinstance(n, MutableFileNode)
3452 # Make SDMF node that has 255 shares.
3453 self.nm.default_encoding_parameters['n'] = 255
3454 self.nm.default_encoding_parameters['k'] = 127
3455 return self.nm.create_mutable_file(MutableData(self.small_data))
3456 d.addCallback(_then)
3458 assert isinstance(n, MutableFileNode)
3459 self.sdmf_max_shares_node = n
3460 d.addCallback(_then2)
3463 def do_upload_mdmf(self):
3464 d = self.nm.create_mutable_file(MutableData(self.data),
3465 version=MDMF_VERSION)
3467 assert isinstance(n, MutableFileNode)
3469 # Make MDMF node that has 255 shares.
3470 self.nm.default_encoding_parameters['n'] = 255
3471 self.nm.default_encoding_parameters['k'] = 127
3472 return self.nm.create_mutable_file(MutableData(self.data),
3473 version=MDMF_VERSION)
3474 d.addCallback(_then)
3476 assert isinstance(n, MutableFileNode)
3477 self.mdmf_max_shares_node = n
3478 d.addCallback(_then2)
3481 def _test_replace(self, offset, new_data):
3482 expected = self.data[:offset]+new_data+self.data[offset+len(new_data):]
3483 d0 = self.do_upload_mdmf()
3485 d = defer.succeed(None)
3486 for node in (self.mdmf_node, self.mdmf_max_shares_node):
3487 # close over 'node'.
3488 d.addCallback(lambda ign, node=node:
3489 node.get_best_mutable_version())
3490 d.addCallback(lambda mv:
3491 mv.update(MutableData(new_data), offset))
3492 d.addCallback(lambda ign, node=node:
3493 node.download_best_version())
3494 def _check(results):
3495 if results != expected:
3497 print "got: %s ... %s" % (results[:20], results[-20:])
3498 print "exp: %s ... %s" % (expected[:20], expected[-20:])
3499 self.fail("results != expected")
3500 d.addCallback(_check)
3502 d0.addCallback(_run)
3505 def test_append(self):
3506 # We should be able to append data to a mutable file and get
3508 return self._test_replace(len(self.data), "appended")
3510 def test_replace_middle(self):
3511 # We should be able to replace data in the middle of a mutable
3512 # file and get what we expect back.
3513 return self._test_replace(100, "replaced")
3515 def test_replace_beginning(self):
3516 # We should be able to replace data at the beginning of the file
3517 # without truncating the file
3518 return self._test_replace(0, "beginning")
3520 def test_replace_segstart1(self):
3521 return self._test_replace(128*1024+1, "NNNN")
3523 def test_replace_zero_length_beginning(self):
3524 return self._test_replace(0, "")
3526 def test_replace_zero_length_middle(self):
3527 return self._test_replace(50, "")
3529 def test_replace_zero_length_segstart1(self):
3530 return self._test_replace(128*1024+1, "")
3532 def test_replace_and_extend(self):
3533 # We should be able to replace data in the middle of a mutable
3534 # file and extend that mutable file and get what we expect.
3535 return self._test_replace(100, "modified " * 100000)
3538 def _check_differences(self, got, expected):
3539 # displaying arbitrary file corruption is tricky for a
3540 # 1MB file of repeating data,, so look for likely places
3541 # with problems and display them separately
3542 gotmods = [mo.span() for mo in re.finditer('([A-Z]+)', got)]
3543 expmods = [mo.span() for mo in re.finditer('([A-Z]+)', expected)]
3544 gotspans = ["%d:%d=%s" % (start,end,got[start:end])
3545 for (start,end) in gotmods]
3546 expspans = ["%d:%d=%s" % (start,end,expected[start:end])
3547 for (start,end) in expmods]
3548 #print "expecting: %s" % expspans
3552 print "differences:"
3553 for segnum in range(len(expected)//SEGSIZE):
3554 start = segnum * SEGSIZE
3555 end = (segnum+1) * SEGSIZE
3556 got_ends = "%s .. %s" % (got[start:start+20], got[end-20:end])
3557 exp_ends = "%s .. %s" % (expected[start:start+20], expected[end-20:end])
3558 if got_ends != exp_ends:
3559 print "expected[%d]: %s" % (start, exp_ends)
3560 print "got [%d]: %s" % (start, got_ends)
3561 if expspans != gotspans:
3562 print "expected: %s" % expspans
3563 print "got : %s" % gotspans
3564 open("EXPECTED","wb").write(expected)
3565 open("GOT","wb").write(got)
3566 print "wrote data to EXPECTED and GOT"
3567 self.fail("didn't get expected data")
3570 def test_replace_locations(self):
3571 # exercise fencepost conditions
3573 suspects = range(SEGSIZE-3, SEGSIZE+1)+range(2*SEGSIZE-3, 2*SEGSIZE+1)
3574 letters = iter("ABCDEFGHIJKLMNOPQRSTUVWXYZ")
3575 d0 = self.do_upload_mdmf()
3577 expected = self.data
3578 d = defer.succeed(None)
3579 for offset in suspects:
3580 new_data = letters.next()*2 # "AA", then "BB", etc
3581 expected = expected[:offset]+new_data+expected[offset+2:]
3582 d.addCallback(lambda ign:
3583 self.mdmf_node.get_best_mutable_version())
3584 def _modify(mv, offset=offset, new_data=new_data):
3585 # close over 'offset','new_data'
3586 md = MutableData(new_data)
3587 return mv.update(md, offset)
3588 d.addCallback(_modify)
3589 d.addCallback(lambda ignored:
3590 self.mdmf_node.download_best_version())
3591 d.addCallback(self._check_differences, expected)
3593 d0.addCallback(_run)
3596 def test_replace_locations_max_shares(self):
3597 # exercise fencepost conditions
3599 suspects = range(SEGSIZE-3, SEGSIZE+1)+range(2*SEGSIZE-3, 2*SEGSIZE+1)
3600 letters = iter("ABCDEFGHIJKLMNOPQRSTUVWXYZ")
3601 d0 = self.do_upload_mdmf()
3603 expected = self.data
3604 d = defer.succeed(None)
3605 for offset in suspects:
3606 new_data = letters.next()*2 # "AA", then "BB", etc
3607 expected = expected[:offset]+new_data+expected[offset+2:]
3608 d.addCallback(lambda ign:
3609 self.mdmf_max_shares_node.get_best_mutable_version())
3610 def _modify(mv, offset=offset, new_data=new_data):
3611 # close over 'offset','new_data'
3612 md = MutableData(new_data)
3613 return mv.update(md, offset)
3614 d.addCallback(_modify)
3615 d.addCallback(lambda ignored:
3616 self.mdmf_max_shares_node.download_best_version())
3617 d.addCallback(self._check_differences, expected)
3619 d0.addCallback(_run)
3623 def test_append_power_of_two(self):
3624 # If we attempt to extend a mutable file so that its segment
3625 # count crosses a power-of-two boundary, the update operation
3626 # should know how to reencode the file.
3628 # Note that the data populating self.mdmf_node is about 900 KiB
3629 # long -- this is 7 segments in the default segment size. So we
3630 # need to add 2 segments worth of data to push it over a
3631 # power-of-two boundary.
3632 segment = "a" * DEFAULT_MAX_SEGMENT_SIZE
3633 new_data = self.data + (segment * 2)
3634 d0 = self.do_upload_mdmf()
3636 d = defer.succeed(None)
3637 for node in (self.mdmf_node, self.mdmf_max_shares_node):
3638 # close over 'node'.
3639 d.addCallback(lambda ign, node=node:
3640 node.get_best_mutable_version())
3641 d.addCallback(lambda mv:
3642 mv.update(MutableData(segment * 2), len(self.data)))
3643 d.addCallback(lambda ign, node=node:
3644 node.download_best_version())
3645 d.addCallback(lambda results:
3646 self.failUnlessEqual(results, new_data))
3648 d0.addCallback(_run)
3651 def test_update_sdmf(self):
3652 # Running update on a single-segment file should still work.
3653 new_data = self.small_data + "appended"
3654 d0 = self.do_upload_sdmf()
3656 d = defer.succeed(None)
3657 for node in (self.sdmf_node, self.sdmf_max_shares_node):
3658 # close over 'node'.
3659 d.addCallback(lambda ign, node=node:
3660 node.get_best_mutable_version())
3661 d.addCallback(lambda mv:
3662 mv.update(MutableData("appended"), len(self.small_data)))
3663 d.addCallback(lambda ign, node=node:
3664 node.download_best_version())
3665 d.addCallback(lambda results:
3666 self.failUnlessEqual(results, new_data))
3668 d0.addCallback(_run)
3671 def test_replace_in_last_segment(self):
3672 # The wrapper should know how to handle the tail segment
3674 replace_offset = len(self.data) - 100
3675 new_data = self.data[:replace_offset] + "replaced"
3676 rest_offset = replace_offset + len("replaced")
3677 new_data += self.data[rest_offset:]
3678 d0 = self.do_upload_mdmf()
3680 d = defer.succeed(None)
3681 for node in (self.mdmf_node, self.mdmf_max_shares_node):
3682 # close over 'node'.
3683 d.addCallback(lambda ign, node=node:
3684 node.get_best_mutable_version())
3685 d.addCallback(lambda mv:
3686 mv.update(MutableData("replaced"), replace_offset))
3687 d.addCallback(lambda ign, node=node:
3688 node.download_best_version())
3689 d.addCallback(lambda results:
3690 self.failUnlessEqual(results, new_data))
3692 d0.addCallback(_run)
3695 def test_multiple_segment_replace(self):
3696 replace_offset = 2 * DEFAULT_MAX_SEGMENT_SIZE
3697 new_data = self.data[:replace_offset]
3698 new_segment = "a" * DEFAULT_MAX_SEGMENT_SIZE
3699 new_data += 2 * new_segment
3700 new_data += "replaced"
3701 rest_offset = len(new_data)
3702 new_data += self.data[rest_offset:]
3703 d0 = self.do_upload_mdmf()
3705 d = defer.succeed(None)
3706 for node in (self.mdmf_node, self.mdmf_max_shares_node):
3707 # close over 'node'.
3708 d.addCallback(lambda ign, node=node:
3709 node.get_best_mutable_version())
3710 d.addCallback(lambda mv:
3711 mv.update(MutableData((2 * new_segment) + "replaced"),
3713 d.addCallback(lambda ignored, node=node:
3714 node.download_best_version())
3715 d.addCallback(lambda results:
3716 self.failUnlessEqual(results, new_data))
3718 d0.addCallback(_run)
3721 class Interoperability(GridTestMixin, unittest.TestCase, testutil.ShouldFailMixin):
3722 sdmf_old_shares = {}
3723 sdmf_old_shares[0] = "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"
3724 sdmf_old_shares[1] = "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"
3725 sdmf_old_shares[2] = "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"
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3730 sdmf_old_shares[7] = "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"
3731 sdmf_old_shares[8] = "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"
3732 sdmf_old_shares[9] = "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"
3733 sdmf_old_cap = "URI:SSK:gmjgofw6gan57gwpsow6gtrz3e:5adm6fayxmu3e4lkmfvt6lkkfix34ai2wop2ioqr4bgvvhiol3kq"
3734 sdmf_old_contents = "This is a test file.\n"
3735 def copy_sdmf_shares(self):
3736 # We'll basically be short-circuiting the upload process.
3737 servernums = self.g.servers_by_number.keys()
3738 assert len(servernums) == 10
3740 assignments = zip(self.sdmf_old_shares.keys(), servernums)
3741 # Get the storage index.
3742 cap = uri.from_string(self.sdmf_old_cap)
3743 si = cap.get_storage_index()
3745 # Now execute each assignment by writing the storage.
3746 for (share, servernum) in assignments:
3747 sharedata = base64.b64decode(self.sdmf_old_shares[share])
3748 storedir = self.get_serverdir(servernum)
3749 storage_path = os.path.join(storedir, "shares",
3750 storage_index_to_dir(si))
3751 fileutil.make_dirs(storage_path)
3752 fileutil.write(os.path.join(storage_path, "%d" % share),
3754 # ...and verify that the shares are there.
3755 shares = self.find_uri_shares(self.sdmf_old_cap)
3756 assert len(shares) == 10
3758 def test_new_downloader_can_read_old_shares(self):
3759 self.basedir = "mutable/Interoperability/new_downloader_can_read_old_shares"
3761 self.copy_sdmf_shares()
3762 nm = self.g.clients[0].nodemaker
3763 n = nm.create_from_cap(self.sdmf_old_cap)
3764 d = n.download_best_version()
3765 d.addCallback(self.failUnlessEqual, self.sdmf_old_contents)
3768 class DifferentEncoding(unittest.TestCase):
3770 self._storage = s = FakeStorage()
3771 self.nodemaker = make_nodemaker(s)
3773 def test_filenode(self):
3774 # create a file with 3-of-20, then modify it with a client configured
3775 # to do 3-of-10. #1510 tracks a failure here
3776 self.nodemaker.default_encoding_parameters["n"] = 20
3777 d = self.nodemaker.create_mutable_file("old contents")
3779 filecap = n.get_cap().to_string()
3780 del n # we want a new object, not the cached one
3781 self.nodemaker.default_encoding_parameters["n"] = 10
3782 n2 = self.nodemaker.create_from_cap(filecap)
3784 d.addCallback(_created)
3785 def modifier(old_contents, servermap, first_time):
3786 return "new contents"
3787 d.addCallback(lambda n: n.modify(modifier))