Commit Graph

75 Commits

Author SHA1 Message Date
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
Brian Warner
f1c3ff62c1 mutable: improve NewDirectoryNode test coverage 2007-11-01 18:35:54 -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
9da1d70676 add a simple checker, for both files and directories 2007-10-15 16:16:39 -07:00
Brian Warner
311ed144f8 uri.py: improve test coverage a bit 2007-09-17 01:09:47 -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
81a9904455 CHK: remove the storage index from the URI, deriving it from the key instead 2007-07-21 18:23:15 -07:00
Brian Warner
2bc3c163b6 uri.py: get keys and index from the URI instance 2007-07-21 17:45:00 -07:00
Brian Warner
1d9a58977f uri: implement URI-processing classes, IFileURI/IDirnodeURI, use internally 2007-07-21 15:40:36 -07:00
Brian Warner
ba7e14a870 fix several methods to handle LIT URIs correctly, rather than assuming that all filenodes are CHK URIs 2007-07-12 16:17:49 -07:00
Brian Warner
def63d193e implement URI:LIT, which stores small (<55B) files inside the URI itself. Fixes #81. 2007-07-12 13:22:36 -07:00
Brian Warner
62e8528cc6 web: /uri/ must escape slashes, we use bangs for this 2007-07-07 22:06:52 -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
e0dfedb0a6 add 'allmydata-tahoe dump-uri-extension' utility command 2007-06-11 18:38:21 -07:00
Brian Warner
382888899b refactor URI_extension handlers out of encode/download and into uri.py 2007-06-11 18:25:18 -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
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
05163ec8e1 change uri-packer-unpacker to deal with dictionaries, not fragile tuples 2007-05-23 11:18:49 -07:00
Brian Warner
4b2298937b use real encryption, generate/store/verify verifierid and fileid 2007-04-25 17:53:10 -07:00
Brian Warner
7cd9ef3bbf finish making the new encoder/decoder/upload/download work 2007-03-30 16:50:50 -07:00
Brian Warner
2593ce42c3 uri.py: share counts are not base32-encoded 2007-03-30 12:36:16 -07:00
Zooko O'Whielacronx
f4a718c5b6 finish storage server and write new download 2007-03-30 10:52:19 -07:00
Brian Warner
18ec38acf0 hush pyflakes warnings 2007-01-16 21:34:34 -07:00
Brian Warner
4101bcf218 update URI format, include codec name 2007-01-16 21:29:59 -07:00