Commit Graph

350 Commits

Author SHA1 Message Date
Brian Warner
b84c2c6541 manifest: add storage-index strings to the json results 2008-11-19 16:00:27 -07:00
Brian Warner
815e0673e6 manifest: include stats in results. webapi is unchanged. 2008-11-19 15:03:47 -07:00
Brian Warner
dfa2408157 checker: add is_recoverable() to checker results, make our stub immutable-verifier not throw an exception on unrecoverable files, add tests 2008-11-06 22:35:47 -07:00
Brian Warner
b1db6d9ff2 web: add 'Repair' button to checker results when they indicate unhealthyness. Also add the object's uri to the CheckerResults instance. 2008-10-29 18:09:17 -07:00
Brian Warner
37e3d8e47c #527: support HTTP 'Range:' requests, using a cachefile. Adds filenode.read(consumer, offset, size) method. Still needs: cache expiration, reduced alacrity. 2008-10-28 13:41:04 -07:00
Brian Warner
914655c52b interfaces.py: promote immutable.encode.NotEnoughSharesError.. it isn't just for immutable files any more 2008-10-27 13:34:49 -07:00
Brian Warner
4b48d94c52 interfaces.IMutableFileNode.download_best_version(): fix return value 2008-10-27 13:20:46 -07:00
Brian Warner
fca158e83a dirnode lookup: use distinct NoSuchChildError instead of the generic KeyError when a child can't be found 2008-10-27 13:15:25 -07:00
Brian Warner
db37c14ab7 storage: add remote_advise_corrupt_share, for clients to tell storage servers about share corruption that they've discovered. The server logs the report. 2008-10-24 11:52:48 -07:00
Brian Warner
c455d52453 deep-check: add webapi links to detailed per-file/dir results 2008-10-23 16:00:31 -07:00
Brian Warner
819d6b3d03 interface.py: fix typo 2008-10-23 15:59:36 -07:00
Brian Warner
977c6ac510 more #514: pass a Monitor to all checker operations, make mutable-checker honor the cancel flag 2008-10-22 01:38:18 -07:00
Brian Warner
ad3d9207a9 Change deep-size/stats/check/manifest to a start+poll model instead of a single long-running synchronous operation. No cancel or handle-expiration yet. #514. 2008-10-21 17:03:07 -07:00
Zooko O'Whielacronx
8a6d1e5da6 repairer: test all different kinds of corruption that can happen to share files on disk 2008-10-14 16:09:20 -07:00
Zooko O'Whielacronx
86e22b8add interfaces: loosen a few max-size constraints which would limit us to a mere 1.09 TB maximum file size
These constraints were originally intended to protect against attacks on the
storage server protocol layer which exhaust memory in the peer.  However,
defending against that sort of DoS is hard -- probably it isn't completely
achieved -- and it costs development time to think about it, and it sometimes
imposes limits on legitimate users which we don't necessarily want to impose.
So, for now we forget about limiting the amount of RAM that a foolscap peer can
cause you to start using.
2008-10-09 12:13:57 -07:00
Brian Warner
3ffaded809 web: change t=manifest to return a list of (path,read/writecap) tuples, instead of a list of verifycaps. Add output=html,text,json. 2008-10-06 21:36:18 -07:00
Brian Warner
41bacca3f1 interfaces: fix minor typo 2008-10-02 17:52:49 -07:00
Brian Warner
d0bdf9a611 dirnode: add get_child_and_metadata_at_path 2008-10-02 17:52:03 -07:00
Zooko O'Whielacronx
1e8d37cc2d repairer: add basic test of repairer, move tests of immutable checker/repairer from test_system to test_immutable_checker, remove obsolete test helper code from test_filenode
Hm...  "Checker" ought to be renamed to "CheckerRepairer" or "Repairer" at some point...
2008-09-25 10:16:53 -07:00
Brian Warner
f570ad7ba5 disallow deep-check on non-directories, simplifies the code a bit 2008-09-10 13:44:58 -07:00
Brian Warner
4bb88fd2ee dirnode: refactor recursive-traversal methods, add stats to deep_check() method results and t=deep-check webapi 2008-09-10 01:45:04 -07:00
Brian Warner
1d2d6a35a6 checker results: add output=JSON to webapi, add tests, clean up APIs
to make the internal ones use binary strings (nodeid, storage index) and
the web/JSON ones use base32-encoded strings. The immutable verifier is
still incomplete (it returns imaginary healty results).
2008-09-09 19:45:17 -07:00
Brian Warner
84a5778507 checker results: more tests, update interface docs 2008-09-09 17:30:10 -07:00
Brian Warner
137750eca6 interfaces.py: minor improvement to IDirectoryNode.set_node 2008-09-09 16:34:16 -07:00
Brian Warner
3408d552cd checker: overhaul checker results, split check/check_and_repair into separate methods, improve web displays 2008-09-07 12:44:56 -07:00
Brian Warner
d43baa2ad7 mutable: add get_size_of_best_version to the interface, to simplify the web HEAD code, and tests 2008-08-12 19:02:52 -07:00
Brian Warner
c80e352951 IFilesystemNode: add get_storage_index(), it makes tests easier 2008-08-12 16:14:07 -07:00
Brian Warner
d106e411af checker: add information to results, add some deep-check tests, fix a bug in which unhealthy files were not counted 2008-08-11 21:03:26 -07:00
Zooko O'Whielacronx
29255568df storage: make storage servers declare oldest supported version == 1.0, and storage clients declare oldest supported version == 1.0
See comments in patch for intended semantics.
2008-07-30 15:51:07 -07:00
Brian Warner
afda2a43e4 storage: remove update_write_enabler method, it won't serve the desired purpose, and I have a better scheme in mind. See #489 for details 2008-07-21 17:28:28 -07:00
Brian Warner
879fefe5f3 first pass at a mutable repairer. not tested at all yet, but of course all existing tests pass 2008-07-17 21:09:23 -07:00
Brian Warner
3e95681bad interfaces: add IRepairable 2008-07-17 17:32:17 -07:00
Brian Warner
67db0a4967 deep-check: add webapi, add 'DEEP-CHECK' button to wui, add tests, rearrange checker API a bit 2008-07-17 16:47:09 -07:00
Brian Warner
9289433ba3 first pass at deep-checker, no webapi yet, probably big problems with it, only minimal tests 2008-07-16 18:20:57 -07:00
Brian Warner
3e9322bcb6 checker: re-enable checker web results (although they just say 'Healthy' right now) 2008-07-16 15:42:56 -07:00
Brian Warner
94e619c1f6 overhaul checker invocation
Removed the Checker service, removed checker results storage (both in-memory
and the tiny stub of sqlite-based storage). Added ICheckable, all
check/verify is now done by calling the check() method on filenodes and
dirnodes (immutable files, literal files, mutable files, and directory
instances).

Checker results are returned in a Results instance, with an html() method for
display. Checker results have been temporarily removed from the wui directory
listing until we make some other fixes.

Also fixed client.create_node_from_uri() to create LiteralFileNodes properly,
since they have different checking behavior. Previously we were creating full
FileNodes with LIT uris inside, which were downloadable but not checkable.
2008-07-15 17:23:25 -07:00
Brian Warner
fd465b4aaf download: fix stopProducing failure ('self._paused_at not defined'), add tests 2008-07-14 15:25:21 -07:00
Brian Warner
60725ed065 storage: add add_lease/update_write_enabler to remote API, revamp lease handling 2008-07-09 18:06:55 -07:00
Brian Warner
45405d85c4 interfaces: add verify= and repair= args to check() 2008-07-07 14:37:36 -07:00
Brian Warner
4e5b9ee63e introducer: move the relevant interfaces out to introducer/interfaces.py 2008-06-18 17:04:41 -07:00
Brian Warner
5289064dcf move FileTooLargeError out to a common location 2008-06-03 00:01:15 -07:00
Brian Warner
87c1e8e066 dirnode: add overwrite= to most API calls, defaulting to True. When False, this raises ExistingChildError rather than overwriting an existing child 2008-05-16 16:09:47 -07:00
Brian Warner
6c00a70dbc dirnode: add a deep_stats(), like deep-size but with more information. webish adds t=deeps-size too. 2008-05-08 13:21:14 -07:00
Zooko O'Whielacronx
c1184f51e4 docs: fix a few stale comments in code 2008-05-07 08:39:03 -07:00
Brian Warner
a379690b04 mutable: replace MutableFileNode API, update tests. Changed all callers to use overwrite(), but that will change soon 2008-04-17 17:51:38 -07:00
Brian Warner
a1670497a8 mutable WIP: add servermap update status pages 2008-04-16 19:05:41 -07:00
Brian Warner
1334a251ca remove size constraint on ShareData: large directories caused errors which triggered massive memory usage. See #379 for details 2008-04-11 22:51:54 -07:00
robk-tahoe
5578559b85 added offloaded key generation
this adds a new service to pre-generate RSA key pairs.  This allows
the expensive (i.e. slow) key generation to be placed into a process
outside the node, so that the node's reactor will not block when it
needs a key pair, but instead can retrieve them from a pool of already
generated key pairs in the key-generator service.

it adds a tahoe create-key-generator command which initialises an 
empty dir with a tahoe-key-generator.tac file which can then be run
via twistd.  it stashes its .pem and portnum for furl stability and
writes the furl of the key gen service to key_generator.furl, also
printing it to stdout.

by placing a key_generator.furl file into the nodes config directory
(e.g. ~/.tahoe) a node will attempt to connect to such a service, and
will use that when creating mutable files (i.e. directories) whenever
possible.  if the keygen service is unavailable, it will perform the
key generation locally instead, as before.
2008-04-01 18:45:13 -07:00
Zooko O'Whielacronx
fc3bd0c987 use added secret to protect convergent encryption
Now upload or encode methods take a required argument named "convergence" which can be either None, indicating no convergent encryption at all, or a string, which is the "added secret" to be mixed in to the content hash key.  If you want traditional convergent encryption behavior, set the added secret to be the empty string.

This patch also renames "content hash key" to "convergent encryption" in a argument names and variable names.  (A different and larger renaming is needed in order to clarify that Tahoe supports immutable files which are not encrypted content-hash-key a.k.a. convergent encryption.)

This patch also changes a few unit tests to use non-convergent encryption, because it doesn't matter for what they are testing and non-convergent encryption is slightly faster.
2008-03-24 09:46:06 -07:00
Brian Warner
2ef70ab814 mutable.py: split replace() into update() and overwrite(). Addresses #328. 2008-03-12 18:00:43 -07:00
Brian Warner
c21d30c320 client: publish a 'stub client' announcement to the introducer, to provide version/nickname information for each client 2008-03-11 19:20:10 -07:00
Brian Warner
10d3ea5045 increase remote-interface size limits to 16EiB by not casually using 'int' as a constraint 2008-03-11 10:50:31 -07:00
Brian Warner
ca1a1762e2 web: status: add 'started' timestamps to all operations 2008-03-04 18:50:44 -07:00
Brian Warner
68fbd89e66 webish: add primitive publish/retrieve status pages 2008-03-04 01:07:44 -07:00
Brian Warner
18eb00d136 webish: download-results: add per-server response times 2008-03-03 20:53:45 -07:00
Brian Warner
886ef22335 webish: download-results: add server_problems 2008-03-03 20:30:35 -07:00
Brian Warner
def910c391 webish download results: add servermap, decrypt time 2008-03-03 20:09:32 -07:00
Brian Warner
2b49605c51 webish: add 'download results', with some basic timing information 2008-03-03 19:19:21 -07:00
Brian Warner
c8e24f0904 webish: make upload timings visible on the recent uploads/downloads status page 2008-03-03 14:48:52 -07:00
Brian Warner
1a7651ce82 retain 10 most recent upload/download status objects, show them in /status . Prep for showing individual status objects 2008-02-29 22:19:03 -07:00
Zooko O'Whielacronx
99f006c584 wapi: add POST /uri/$DIRECTORY?t=set_children
Unfinished bits: doc in webapi.txt, test handling of badly formed JSON, return reasonable HTTP response, examination of the effect of this patch on code coverage -- but I'm committing it anyway because MikeB can use it and I'm being called to dinner...
2008-02-29 18:40:27 -07:00
Brian Warner
301dd3d489 webish status: distinguish active uploads/downloads from recent ones 2008-02-26 15:35:28 -07:00
Brian Warner
7927495cbe unicode handling: declare dirnodes to contain unicode child names, update webish to match 2008-02-14 15:45:56 -07:00
Brian Warner
e6af3b845c make current upload/download status objects available from the client 2008-02-12 15:39:45 -07:00
Brian Warner
94097affc3 add download-status objects, to track download progress 2008-02-12 15:38:39 -07:00
Brian Warner
d0ce8694c1 add upload-status objects, to track upload progress 2008-02-12 15:36:05 -07:00
Brian Warner
622c477e31 dirnode: add ctime/mtime to metadata, update metadata-modifying APIs. Needs more testing and sanity checking. 2008-02-08 18:43:47 -07:00
Brian Warner
81c5ceae16 upload: rework passing of default encoding parameters: move more responsibility into BaseUploadable 2008-02-06 18:39:03 -07:00
Brian Warner
6cd32c2f5c interfaces: remove spurious line that counted against the figleaf coverage 2008-02-06 16:41:26 -07:00
Brian Warner
124fb5ecdf add upload-results timing info for helper uploads. This changes the Helper protocol, and introduces a compatibility break 2008-02-06 01:52:25 -07:00
Brian Warner
66f33ee504 upload: return an UploadResults instance (with .uri) instead of just a URI 2008-02-05 21:01:38 -07:00
Brian Warner
d146ef7e09 webish: add extra introducer data (version, timestamps) to Welcome page 2008-02-05 17:32:27 -07:00
Brian Warner
daecca6589 big introducer refactoring: separate publish+subscribe. Addresses #271. 2008-02-05 13:05:13 -07:00
Brian Warner
a01f9ce9cc introducer: allow nodes to refrain from publishing themselves, by passing furl=None. This would be useful for clients who do not run storage servers. 2008-02-01 19:48:38 -07:00
robk-tahoe
e5487bbe21 stats: added IStatsProducer interface, fixed stats provider startup
this adds an interface, IStatsProducer, defining the get_stats() method
which the stats provider calls upon and registered producer, and made the
register_producer() method check that interface is implemented.

also refine the startup logic, so that the stats provider doesn't try and
connect out to the stats gatherer until after the node declares the tub
'ready'.  this is to address an issue whereby providers would attach to
the gatherer without providing a valid furl, and hence the gatherer would
be unable to determine the tubid of the connected client, leading to lost
samples.
2008-01-31 21:10:15 -07:00
robk-tahoe
7b9f3207d0 stats: add a simple stats gathering system
We have a desire to collect runtime statistics from multiple nodes primarily
for server monitoring purposes.   This implements a simple implementation of
such a system, as a skeleton to build more sophistication upon.

Each client now looks for a 'stats_gatherer.furl' config file.  If it has
been configured to use a stats gatherer, then it instantiates internally
a StatsProvider.  This is a central place for code which wishes to offer
stats up for monitoring to report them to, either by calling 
stats_provider.count('stat.name', value) to increment a counter, or by
registering a class as a stats producer with sp.register_producer(obj).

The StatsProvider connects to the StatsGatherer server and provides its
provider upon startup.  The StatsGatherer is then responsible for polling
the attached providers periodically to retrieve the data provided.
The provider queries each registered producer when the gatherer queries
the provider.  Both the internal 'counters' and the queried 'stats' are
then reported to the gatherer.

This provides a simple gatherer app, (c.f. make stats-gatherer-run)
which prints its furl and listens for incoming connections.  Once a
minute, the gatherer polls all connected providers, and writes the
retrieved data into a pickle file.

Also included is a munin plugin which knows how to read the gatherer's
stats.pickle and output data munin can interpret.  this plugin, 
tahoe-stats.py can be symlinked as multiple different names within
munin's 'plugins' directory, and inspects argv to determine which
data to display, doing a lookup in a table within that file.
It looks in the environment for 'statsfile' to determine the path to
the gatherer's stats.pickle.  An example plugins-conf.d file is
provided.
2008-01-30 20:11:07 -07:00
Brian Warner
22071c00e0 upload: oops, fix breakage after removing upload_file/upload_data/etc 2008-01-30 19:41:43 -07:00
Brian Warner
492cb92dc8 speedcheck: track SSK creation time separately 2008-01-29 20:44:32 -07:00
Brian Warner
46fe024612 offloaded uploader: don't use a huge amount of memory when skipping over previously-uploaded data 2008-01-24 17:25:33 -07:00
Brian Warner
e9307d3fda offloaded: close the local filehandle after encoding is done, otherwise windows fails 2008-01-17 01:52:33 -07:00
Brian Warner
51321944f0 megapatch: overhaul encoding_parameters handling: now it comes from the Uploadable, or the Client. Removed options= too. Also move helper towards resumability. 2008-01-16 03:03:35 -07:00
Brian Warner
a6ca98ac53 upload: add Encoder.abort(), to abandon the upload in progress. Add some debug hooks to enable unit tests. 2008-01-14 21:22:55 -07:00
Brian Warner
7ac2b94aba remove wait_for_numpeers and the when_enough_peers call in mutable.Publish 2008-01-14 14:55:59 -07:00
Brian Warner
964edadf44 offloaded: add a system test, make it pass. files are now being uploaded through the helper. 2008-01-11 05:42:55 -07:00
Brian Warner
6ac01fde4c offloaded: more test coverage on client side, change interfaces a bit 2008-01-11 04:53:37 -07:00
Brian Warner
e825406fc2 offloaded: move interfaces to interfaces.py, start implementing backend 2008-01-09 21:25:47 -07:00
Brian Warner
ea24864544 offloaded: more code, fix pyflakes problems, change IEncryptedUploader a bit 2008-01-09 17:58:47 -07:00
Brian Warner
9a8f68c41f dirnode: add set_uris() and set_nodes() (plural), to set multiple children at once. Use it to set up a new webapi test for issue #237. 2007-12-18 23:30:02 -07:00
Zooko O'Whielacronx
a5a54ac5ca remove the DirnodeURI foolscap schema and mv those regexes into uri.py
We currently do not pass dirnode uris over foolscap.
2007-12-18 17:44:24 -07:00
Zooko O'Whielacronx
9848d2043d make more precise regexp for WriteableSSKFileURI and DirnodeURI and use it in unit tests
Also allow an optional leading "http://127.0.0.1:8123/uri/".
Also fix a few unit tests to generate bogus Dirnode URIs of the modern form instead of the former form.
2007-12-18 13:15:08 -07:00
Brian Warner
f6b2072af1 check-speed: test SSK upload/download speed too. SDMF imposes a limit on the file sizes, no 10MB or 100MB test 2007-12-14 02:05:31 -07:00
Brian Warner
0dc84963f1 the wait_for_numpeers= argument to client.upload() is optional: make both the code and the Interface reflect this 2007-12-06 18:36:58 -07:00
Brian Warner
f190382d5e refactor web tests, and interfaces.IFileNode 2007-12-04 23:01:37 -07:00
Brian Warner
0f5ef5184d test_dirnode.py: obtain full coverage of dirnode.py 2007-12-04 14:32:04 -07:00
Zooko O'Whielacronx
59d6c3c822 decentralized directories: integration and testing
* use new decentralized directories everywhere instead of old centralized directories
 * provide UI to them through the web server
 * provide UI to them through the CLI
 * update unit tests to simulate decentralized mutable directories in order to test other components that rely on them
 * remove the notion of a "vdrive server" and a client thereof
 * remove the notion of a "public vdrive", which was a directory that was centrally published/subscribed automatically by the tahoe node (you can accomplish this manually by making a directory and posting the URL to it on your web site, for example)
 * add a notion of "wait_for_numpeers" when you need to publish data to peers, which is how many peers should be attached before you start.  The default is 1.
 * add __repr__ for filesystem nodes (note: these reprs contain a few bits of the secret key!)
 * fix a few bugs where we used to equate "mutable" with "not read-only".  Nowadays all directories are mutable, but some might be read-only (to you).
 * fix a few bugs where code wasn't aware of the new general-purpose metadata dict the comes with each filesystem edge
 * sundry fixes to unit tests to adjust to the new directories, e.g. don't assume that every share on disk belongs to a chk file.
2007-12-03 14:52:42 -07:00
Zooko O'Whielacronx
ae727a550a IMutableFileNode is a subtype of IFileNode
I'm not 100% sure that this is correct, but it looks reasonable, it passes unit
tests (although note that unit tests are currently not covering the new mutable
files very well), and it makes the "view JSON" link on a directory work instead
of raising an assertion error.
2007-11-10 16:37:18 -07:00
Brian Warner
be94960680 mutable: test roundtrip, make it work 2007-11-07 14:19:01 -07:00
Brian Warner
7e43c7b5f9 mutable: fix use of storage API 2007-11-06 18:53:34 -07:00
Brian Warner
c4f7412f1c stabilize on 20-byte nodeids everywhere, printed with foolscap's base32 2007-11-06 18:49:59 -07:00
Brian Warner
e08b091d9f storage: rewrite slot API, now use testv_and_readv_and_writev or readv 2007-11-05 20:17:14 -07:00
Brian Warner
8f21424449 storage: add readv_slots: get data from all shares 2007-11-05 00:37:01 -07:00
Brian Warner
516ce89a1e trailing-whitespace eradication, no functional changes 2007-11-01 15:33:47 -07:00
Brian Warner
f4946bc22e trailing-whitespace eradication, no functional changes 2007-11-01 15:22:57 -07:00
Brian Warner
1d8a4cdfe7 mutable: first pass at dirnodes, filenodes, new URIs. Some test coverage.
The URI typenames need revision, and only a few dirnode methods are
implemented. Filenodes are non-functional, but URI/key-management is in
place. There are a lot of classes with names like "NewDirectoryNode" that
will need to be rename once we decide what (if any) backwards compatibility
want to retain.
2007-11-01 15:15:29 -07:00
Brian Warner
fb3eddafdb move NotMutableError from dirnode.py into interfaces.py 2007-11-01 15:03:07 -07:00
Brian Warner
68d3d62002 mutable slots: finish up basic coding on server-side containers, add some tests. Remove all caching from MutableShareFile. 2007-10-31 00:10:40 -07:00
Brian Warner
b24c2925e8 checkpointing mutable-file work. Storage layer is 80% in place. 2007-10-30 19:47:36 -07:00
Brian Warner
046bda2b47 webish: add checker results and a 'Check' button to the web interface 2007-10-23 17:23:57 -07:00
Brian Warner
afca99c485 interfaces: clarify IChecker.checker_results_for a bit 2007-10-22 18:10:46 -07:00
Brian Warner
57f994fb02 checker: remember checker results, but only in ram for now 2007-10-22 17:46:24 -07:00
Brian Warner
9da1d70676 add a simple checker, for both files and directories 2007-10-15 16:16:39 -07:00
Zooko O'Whielacronx
426721f3f2 update a few documents, comments, and defaults to mention 3-of-10 instead of 25-of-100 2007-10-15 19:53:59 -07:00
Brian Warner
c301b41f50 control: add measure_peer_response_time(), to estimate RTT for the mesh 2007-09-26 12:21:15 -07:00
Brian Warner
d58d794757 check_speed: do both upload and download tests 2007-09-20 18:52:44 -07:00
Brian Warner
2632c0ad8c check_speed: upload multiple files, measure Ax+B 2007-09-20 16:55:33 -07:00
Brian Warner
b9d5a4ead4 check_speed.py: run two 1MB uploads and measure the time it takes 2007-09-19 18:40:18 -07:00
Zooko O'Whielacronx
09ff5af99c loosen constraint on share data size 2007-09-11 11:29:18 -07:00
Brian Warner
76be4a582c webish: implement 'PUT /uri?t=mkdir' (to create anonymous dirnodes) 2007-09-05 17:23:06 -07:00
wilcoxjg
33bae16ed2 created DirnodeURI schema 2007-08-28 23:28:26 -07:00
Brian Warner
2a63fe8b01 deletion phase3: add a sqlite database to track renew/cancel-lease secrets, implement renew/cancel_lease (but nobody calls them yet). Also, move the shares from BASEDIR/storage/* down to BASEDIR/storage/shares/* 2007-08-27 23:41:40 -07:00
Brian Warner
739ae1ccde deletion phase1: send renew/cancel-lease secrets, but my_secret is fake, and the StorageServer discards them 2007-08-27 17:28:51 -07:00
Brian Warner
fe06b3be8b dirnode: change the defined behavior of RIVirtualDriveServer.set to allow replace-in-place without raising an exception 2007-08-16 17:03:19 -07:00
Brian Warner
42dcc3088e IDirectoryNode: add has_child() method 2007-08-15 13:22:01 -07:00
Brian Warner
c3293f4f37 interfaces: move signatures into docstrings, to reduce lines of code and improve code-coverage numbers 2007-07-24 19:43:21 -07:00
Brian Warner
e6e9ddc588 refactor upload/encode, to split encrypt and encode responsibilities 2007-07-23 19:31:53 -07:00
Brian Warner
9c5ab89afe truncate storage index to 128 bits, since it's derived from a 128 bit AES key 2007-07-22 19:48:44 -07:00
Brian Warner
1d9a58977f uri: implement URI-processing classes, IFileURI/IDirnodeURI, use internally 2007-07-21 15:40:36 -07:00
Brian Warner
9af506900b upload: refactor to enable streaming upload. not all tests pass yet 2007-07-19 18:21:44 -07:00
Brian Warner
20c980d02b reduce MAX_SEGMENT_SIZE from 2MB to 1MB, to compensate for the large blocks that 3-of-10 produces 2007-07-16 13:48:34 -07:00
Brian Warner
5c08be170e interfaces: increase ShareSize now that our default k is smaller (hence blocks are bigger) 2007-07-13 19:29:31 -07:00
Brian Warner
1f8e407d9c more #85 work, system test still fails 2007-07-13 15:09:01 -07:00
Brian Warner
cd8648d39b storage: use one file per share instead of 7 (#85). work-in-progress, tests still fail 2007-07-13 14:04:49 -07:00
Brian Warner
b0c65ed232 note that setting k=1 is equivalent to replication 2007-07-12 16:22:12 -07:00
Brian Warner
5399395c27 allow the introducer to set default encoding parameters. Closes #84.
By writing something like "25 75 100" into a file named 'encoding_parameters'
in the central Introducer's base directory, all clients which use that
introducer will be advised to use 25-out-of-100 encoding for files (i.e.
100 shares will be produced, 25 are required to reconstruct, and the upload
process will be happy if it can find homes for at least 75 shares). The
default values are "3 7 10". For small meshes, the defaults are probably
good, but for larger ones it may be appropriate to increase the number of
shares.
2007-07-12 15:33:30 -07:00
Brian Warner
b62252183d interfaces.py: increase RIVirtualDriveServer.list constraint from 100 entries to 1000, for now 2007-07-12 13:23:52 -07:00
Brian Warner
dce1dc2730 storage: wrap buckets in a local proxy
This will make it easier to change RIBucketWriter in the future to reduce the wire
protocol to just open/write(offset,data)/close, and do all the structuring on the
client end. The ultimate goal is to store each bucket in a single file, to reduce
the considerable filesystem-quantization/inode overhead on the storage servers.
2007-07-08 23:27:46 -07:00
Brian Warner
a34040df99 interfaces: remove spurious 'self' from interface declarations 2007-07-06 19:39:47 -07:00
Brian Warner
9e42dda6a4 add IDirectoryNode.get_child_at_path 2007-07-06 19:38:37 -07:00
Brian Warner
c4a8db3eb2 webish: provide a valid Content-Length header on downloads 2007-07-03 15:09:00 -07:00
Brian Warner
622acc690a webish: improve reporting of web download errors that occur early enough
If the error occurs before any data has been sent, we can give a sensible
error message (code 500, stack trace, etc). This will cover most of the error
cases. The ones that aren't covered are when we run out of good peers after
successfully decoding the first segment, either because they go away or
because their shares are corrupt.
2007-07-03 13:47:37 -07:00
Brian Warner
f15bb302a1 webish.py: handle errors during download better. Addresses #65.
Previously, exceptions during a web download caused a hang rather than some
kind of exception or error message. This patch improves the situation by
terminating the HTTP download rather than letting it hang forever. The
behavior still isn't ideal, however, because the error can occur too late to
abort the HTTP request cleanly (i.e. with an error code). In fact, the
Content-Type header and response code have already been set by the time any
download errors have been detected, so the browser is committed to displaying
an image or whatever (thus any error message we put into the stream is
unlikely to be displayed in a meaningful way).
2007-07-03 13:18:14 -07:00
Brian Warner
a8bf0645dc interfaces.py: remove some unused 'pass' lines 2007-06-29 00:50:00 -07:00
Brian Warner
efb99078b6 change IVirtualDrive.get_node_at_path to accept either a list or a single slash-separated string 2007-06-28 17:46:14 -07:00
Brian Warner
d6e732b65f vdrive: add get_node_at_path(pathlist) 2007-06-28 11:00:03 -07:00
Brian Warner
b06c74c2a1 Add the 'vdrive' service, for clients to access the public/private root dirs.
These allow client-side code to conveniently retrieve the IDirectoryNode
instances for both the global shared public root directory, and the per-user
private root directory.
2007-06-27 17:11:06 -07:00
Brian Warner
18ab5ce837 dirnode: add build_manifest() and introduce 'refresh capabilities' 2007-06-26 19:41:20 -07:00
Brian Warner
2766b7988b remove unused/obsoleted workqueue.py 2007-06-26 17:25:23 -07:00
Brian Warner
fb02488a8e vdrive: switch to URI:DIR and URI:DIR-RO, providing transitive readonlyness 2007-06-25 13:23:51 -07:00
Brian Warner
82c38d370a make new vdrive work, implement convenience wrapper, passes all tests 2007-06-15 00:37:32 -07:00
Brian Warner
ec77a227be revamp vdrive: nodes with furls. tests still fail. 2007-06-14 20:14:34 -07:00
Brian Warner
956d5ae256 rename fileid/verifierid to plaintext_hash/crypttext_hash 2007-06-09 20:46:04 -07:00
Brian Warner
584dc4ae94 handle uri_extension with a non-bencode serialization scheme 2007-06-08 16:17:54 -07:00
Brian Warner
c9ef291c02 rename thingA to 'uri extension' 2007-06-08 15:59:16 -07:00
Brian Warner
c049941529 move almost all hashing to SHA256, consolidate into hashutil.py
The only SHA-1 hash that remains is used in the permutation of nodeids,
where we need to decide if we care about performance or long-term security.
I suspect that we could use a much weaker hash (and faster) hash for
this purpose. In the long run, we'll be doing thousands of such hashes
for each file uploaded or downloaded (one per known peer).
2007-06-07 21:47:21 -07:00
Brian Warner
e04ff3adac fetch plaintext/crypttext merkle trees during download, but don't check the segments against them yet 2007-06-07 00:15:41 -07:00
Brian Warner
5cbdc240e2 encode: add plaintext/crypttext merkle trees to the shares, and the thingA block. Still needs tests and download-side verification. 2007-06-06 19:40:20 -07:00
Brian Warner
3dfd26970b move validation data to thingA, URI has storage_index plus thingA hash
This (compatibility-breaking) change moves much of the validation data and
encoding parameters out of the URI and into the so-called "thingA" block
(which will get a better name as soon as we find one we're comfortable with).
The URI retains the "storage_index" (a generalized term for the role that
we're currently using the verifierid for, the unique index for each file
that gets used by storage servers to decide which shares to return), the
decryption key, the needed_shares/total_shares counts (since they affect
peer selection), and the hash of the thingA block.

This shortens the URI and lets us add more kinds of validation data without
growing the URI (like plaintext merkle trees, to enable strong incremental
plaintext validation), at the cost of maybe 150 bytes of alacrity. Each
storage server holds an identical copy of the thingA block.

This is an incompatible change: new messages have been added to the storage
server interface, and the URI format has changed drastically.
2007-06-01 18:48:01 -07:00
Brian Warner
ea78b4b605 check_memory: getting closer, now we have memusage numbers for uploads of 10kB and 10MB files 2007-05-29 17:39:39 -07:00
Zooko O'Whielacronx
3872e94da2 rename all "*PBURL*" to "*FURL*"
This breaks backwards compatibility with Tahoe v0.2 -- the first public release of Tahoe.
2007-05-22 14:08:30 -07:00
Zooko O'Whielacronx
10df6fac02 raise constraint on FURLs from 150 chars to 1000 chars 2007-05-22 13:59:17 -07:00
Brian Warner
82ba0f8540 UNDO: forget about old peers (closes #26)
Add a new method to RIIntroducer, to allow the central introducer node to
remove peers from the active set after they've gone away. Without this,
client nodes accumulate stale peer FURLs forever. This introduces a
compatibility break, as old introducers won't know about the 'lost_peers'
message, although the errors produced are probably harmless.
2007-05-07 19:10:24 -07:00
Brian Warner
04af4a48b5 forget about old peers (closes #26)
Add a new method to RIIntroducer, to allow the central introducer node to
remove peers from the active set after they've gone away. Without this,
client nodes accumulate stale peer FURLs forever. This introduces a
compatibility break, as old introducers won't know about the 'lost_peers'
message, although the errors produced are probably harmless.
2007-05-07 19:10:24 -07:00
Zooko O'Whielacronx
e0a18d12af globally search and replace "mesh" with "grid" and adjust description of the effect of NAT on the topology 2007-04-30 13:06:09 -07:00
Zooko O'Whielacronx
d19d1058e0 extirpate all references the "queen" and "metatracker"
This is a potentially disruptive and potentially ugly change to the code base,
because I renamed the object that serves in both roles from "Queen" to
"IntroducerAndVdrive", which is a bit of an ugly name.

However, I think that clarity is important enough in this release to make this
change.  All unit tests pass.  I'm now darcs recording this patch in order to
pull it to other machines for more testing.
2007-04-30 09:57:52 -07:00
Zooko O'Whielacronx
a61178f425 raise the limit on the number of hashes when retrieving them, too 2007-04-30 06:00:10 -07:00
Zooko O'Whielacronx
8e4aa3e1fb raise the limit on block hashes and share hashes from 30 to 2**20 2007-04-29 23:51:15 -07:00
Brian Warner
db2caf58d4 interfaces: allow URIs to be up to 300 chars long, we're just crossing over the edge now 2007-04-26 18:08:29 -07:00
Brian Warner
5ceeaaea6a add RIClient.get_versions, in the hopes of enabling backwards-compatibility code in the future 2007-04-26 12:01:25 -07:00
Brian Warner
bc8ff33cd1 interfaces.py: remove spurious 'pass' statements (which, incidentally, were counted as uncovered code) 2007-04-18 15:46:37 -07:00
Brian Warner
652e8a735f interfaces: use explicit TupleOf and ChoiceOf constraints, since the upcoming version of Foolscap changes the meaning of bare tuples (from ChoiceOf to TupleOf) 2007-04-13 19:04:38 -07:00
Brian Warner
92ba8dc8d2 allmydata.interfaces: remove some of the placeholders now that we require foolscap-0.1.2 2007-04-04 15:59:36 -07:00
Brian Warner
7cd9ef3bbf finish making the new encoder/decoder/upload/download work 2007-03-30 16:50:50 -07:00
Brian Warner
9a2e0cf28e switch upload to use encode_new, fix a few things (but not nearly all of them) 2007-03-30 11:53:03 -07:00
Zooko O'Whielacronx
f4a718c5b6 finish storage server and write new download 2007-03-30 10:52:19 -07:00
Zooko O'Whielacronx
17299fc96e new upload and storage server 2007-03-29 20:19:52 -07:00
Brian Warner
74d0839980 update memory-footprint and share-size docs in ICodecEncoder 2007-03-28 12:52:44 -07:00
Brian Warner
dc25f327a3 document a proposed IDecoder interface, still pretty bare-bones 2007-03-28 11:31:31 -07:00
Brian Warner
c4f09833f5 document IEncoder, add Encoder.set_landlords() 2007-03-28 11:24:53 -07:00
Brian Warner
2b2e0fc0d4 ICodecEncoder: resolve some questions about the API, still more to examine 2007-03-27 20:14:45 -07:00
Brian Warner
59201843b6 update the docs on ICodecEncoder and ICodecDecoder 2007-03-27 19:05:09 -07:00
Brian Warner
25ff9e1f97 complete the Introducer changes, separate out vdrive access, make everything work again 2007-03-27 16:12:11 -07:00
Zooko O'Whielacronx
b58aa3c371 merge incomplete stuff with other patches 2007-03-23 16:20:26 -07:00
Zooko O'Whielacronx
e48a8b8e66 incomplete work to be finished elsewhere 2007-03-23 16:15:57 -07:00
Zooko O'Whielacronx
c77eace162 separate queen's service of introduction-to-the-network from queen's service of providing-access-to-the-vdrive 2007-03-22 14:39:30 -07:00
Brian Warner
a71d83bd8e add a local foolscap control interface, to upload/download files and check memory usage 2007-03-07 19:16:06 -07:00
Brian Warner
61760047cf add some questions to allmydata.interfaces 2007-03-05 20:57:38 -07:00
Zooko O'Whielacronx
dd4ad3d542 use pyfec instead of py_ecc for erasure coding and update API to codec 2007-02-01 16:07:00 -07:00
Brian Warner
e4870a432c fix some of the filetree/workqueue interface definitions 2007-01-26 17:31:24 -07:00
Zooko O'Whielacronx
833ef86a88 update interfaces and docs for codec
It now takes a sequence of buffers instead of a single string for both encode and decode, and it also takes a separate sequence of shareids for decode instead of a sequence of tuples, and it returns a sequence of buffers instead of a single string.
2007-01-24 15:34:02 -07:00
Brian Warner
bbf188d2c6 filetree: make delete() work 2007-01-24 15:10:53 -07:00
Brian Warner
22731125f3 filetree: change the way addpath works, now we add workqueue steps for all involved subtrees at about the same time, rather than letting one step add the next when it runs. Finally add a (passing) test for uploading files to CHK-based directories 2007-01-22 01:06:09 -07:00
Brian Warner
9dc1c0cfc0 filetree: add vdrive upload/download test, change workqueue relative-filename semantics 2007-01-21 16:03:15 -07:00
Brian Warner
81d093b649 move IWorkQueue into allmydata.interfaces, give VirtualDrive an uploader 2007-01-21 15:15:31 -07:00
Brian Warner
430b3a03fc move upload/download interfaces to allmydata.interfaces, let SubTreeMaker assert IDownloader-ness of its 'downloader' argument 2007-01-21 15:01:34 -07:00
Brian Warner
4101bcf218 update URI format, include codec name 2007-01-16 21:29:59 -07:00
Brian Warner
3209fd5e09 rearrange encode/upload, add URIs, switch to ReplicatingEncoder
Added metadata to the bucket store, which is used to hold the share number
(but the bucket doesn't know that, it just gets a string).

Modified the codec interfaces a bit.

Try to pass around URIs to/from download/upload instead of verifierids.
URI format is still in flux.

Change the current (primitive) file encoder to use a ReplicatingEncoder
because it provides ICodecEncoder. We will be moving to the (less primitive)
file encoder (currently in allmydata.encode_new) eventually, but for now
this change lets us test out PyRS or zooko's upcoming C-based RS codec in
something larger than a single unit test. This primitive file encoder only
uses a single segment, and has no merkle trees.

Also added allmydata.util.deferredutil for a DeferredList wrapper that
errbacks (but only when all component Deferreds have fired) if there were
any errors, which unfortunately is not a behavior available from the standard
DeferredList.
2007-01-15 21:22:22 -07:00
Brian Warner
78a9e815c5 add simple metadata (a single string) to the storage protocol 2007-01-15 14:01:22 -07:00
Brian Warner
e29032bc36 change IEncoder to ICodecEncoder, to match the previous change 2007-01-11 20:57:14 -07:00
Brian Warner
f31fc06d89 establish IEncoder/IDecoder, create suitable interfaces for both the simple replicating encoder and the py_ecc one, add a (failing) unit test for it 2007-01-04 21:52:51 -07:00
Brian Warner
3490378551 move all packages into src/, fix allmydata.Crypto build. Now you must perform a 'setup.py build' before using anything, and you must add the build directory (build/lib.linux-i686-2.4) to your PYTHONPATH before doing anything 2006-12-14 03:39:50 -07:00