Commit Graph

976 Commits

Author SHA1 Message Date
Brian Warner
243300f843 docs/thingA.txt: describe what this does, even if it doesn't yet have a name 2007-06-07 21:50:58 -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
cabba59fe7 test_encode.py: even more testing of merkle trees, getting fairly comprehensive now 2007-06-07 21:24:39 -07:00
Brian Warner
053109b28b add tests for bad/inconsistent plaintext/crypttext merkle tree hashes 2007-06-07 19:32:29 -07:00
Brian Warner
4f001bedb3 test_encode.py: further refactoring of send_and_recover 2007-06-07 18:36:25 -07:00
Brian Warner
c7160af7ee test_encode.py: refactor send_and_recover a bit 2007-06-07 18:24:26 -07:00
Brian Warner
8907e04ef5 client.py: allow operation without vdrive.furl, for storage-only no-UI nodes 2007-06-07 17:55:49 -07:00
Brian Warner
59f4a5abe8 client.py: use persistent FURLs for our Node, to reduce spurious connection attempts (#26) 2007-06-07 15:32:21 -07:00
Brian Warner
f3846da4ab encode.py: hush pyflakes warnings 2007-06-07 13:18:55 -07:00
Brian Warner
b2caf7fb9a encode/download: reduce memory footprint by deleting large intermediate buffers as soon as possible, improve hash tree usage 2007-06-07 13:15:58 -07:00
Brian Warner
c81f2b01ff encode.py: fix generation of plaintext/crypttext merkle trees 2007-06-07 13:14:14 -07:00
Brian Warner
a383c17444 hashtree.BadHashError: mention which leaf caused the problem 2007-06-07 12:38:22 -07:00
Brian Warner
2db17df833 iputil.get_local_ip_for: tolerate running on a disconnected host 2007-06-07 19:23:33 -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
fae4e8f9a3 download.py: refactor get-thingA-from-somebody to reuse the logic for other things 2007-06-06 23:50:02 -07:00
Brian Warner
dcf5abb51c encode.py: fix pyflakes warning 2007-06-07 02:56:16 -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
208a932d10 runner.py: allow --multiple to enable starting/stopping/creating multiple nodes at once 2007-06-06 14:06:57 -07:00
robk-org
0bcf29fba4 log a prominent warning message in the case that the introducer cannot be reached 2007-06-04 18:48:53 -07:00
robk-org
7c479ba8a7 catch failures in startService() and abort process 2007-06-04 18:46:37 -07:00
robk-org
92395125fa add a missing up-call in introducer.startService() 2007-06-04 18:45:40 -07:00
robk-org
03e9b0d4d7 change the 'ez_setup.py' script to have distinct desired & minimum required versions of setuptools
and change zfec/setup.py's invocation of ez_setup to require 0.6a9 (which happens to be the default
version installed by apt-get on dapper machines) while leaving the default (desired) version at 0.6c5
2007-06-06 12:49:03 -07:00
Brian Warner
f4c048bbeb encode.py: clean up handling of lost peers during upload, add some logging 2007-06-06 12:40:16 -07:00
Brian Warner
daa4c32381 runner.py: allow all directory-using commands (create/start/stop) to accept argv[-1] as well as --basedir 2007-06-06 11:37:19 -07:00
Brian Warner
e5fdf0daca bin/allmydata-tahoe: also update PYTHONPATH so that child processes (like twistd) will work 2007-06-06 11:36:48 -07:00
Brian Warner
3c0485204e bin/allmydata-tahoe: add a sys.path-modifying preamble to make it easy to run from source 2007-06-06 11:24:00 -07:00
Brian Warner
6bb9debc16 encode: tolerate lost peers, as long as we still get enough shares out. Closes #17. 2007-06-06 10:32:40 -07:00
Brian Warner
fcd7842ff2 roadmap.txt: minor cleanups 2007-06-06 09:49:42 -07:00
Brian Warner
0e3358e508 README: mention strports-ness of NODE/webport, closes #55 2007-06-06 09:49:18 -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
d1d7cdd859 node.py: multi-class exception calls need parentheses 2007-05-31 18:32:21 -07:00
Brian Warner
7124f94461 download.py: refactor bucket_failed() a bit, add some docs 2007-05-31 18:31:36 -07:00
Brian Warner
edaed9c32c test_system.py: minor reformatting 2007-05-31 18:31:01 -07:00
Brian Warner
4f0e944087 node.py: add logging of startup/shutdown, for the cygwin test_system failure 2007-05-31 13:44:22 -07:00
Brian Warner
8875adf807 test_system.py: add a log message to help track down the occasional cygwin failure 2007-05-31 12:01:14 -07:00
Brian Warner
1160c1def2 node.py: log twisted version along with tahoe/foolscap/zfec versions 2007-05-31 11:21:06 -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
04b649f971 switch from FieldStorage.value to FieldStorage.file
Unfortunately this doesn't make the O(n) memory usage go away.  It might reduce the constants -- I'm not sure.  I look forward to enhancement #54 -- memory usage tests!
2007-05-25 16:00:19 -07:00
Zooko O'Whielacronx
763cfc7874 amdlib.util: merge in changes to humanreadable.py that were made in pyutil 2007-05-25 15:49:57 -07:00
Zooko O'Whielacronx
12268ee50f mark #22 finished in source:roadmap.txt 2007-05-25 15:48:01 -07:00
Brian Warner
c405c6117f check_memory.py: finish the failsafe-shutdown code 2007-05-24 17:34:42 -07:00
Brian Warner
4c7c5df41e runner.py: spoke too soon. Really fix #51 this time. 2007-05-24 11:20:39 -07:00
Brian Warner
d0db98cc40 runner.py: expanduser() basedirs, so '~' works. Closes #51. 2007-05-24 11:10:19 -07:00
Brian Warner
8b9d7d6306 .darcs-boringfile: ignore the buildbot's source-stampfile 2007-05-23 18:12:42 -07:00
Brian Warner
13e2af8033 makefile: add a test-clean target 2007-05-23 17:57:48 -07:00
Brian Warner
8fc1bf4330 test_node.py: hush pyflakes warnings 2007-05-23 17:55:04 -07:00
Brian Warner
cbca430062 node.py: hush pyflakes warnings 2007-05-23 17:54:48 -07:00
Brian Warner
319516a5a2 makefile: add a test-darcs-boringfile target 2007-05-23 17:51:28 -07:00
Brian Warner
2d21029367 test_introducer_and_vdrive: remove the assumption that startService returns a Deferred 2007-05-23 17:37:20 -07:00
Brian Warner
83daa265ba test_system.py: check size in web-ui display. closes #37 2007-05-23 17:25:49 -07:00