Commit Graph

107 Commits

Author SHA1 Message Date
akwizgran
68b4760dfa Use a constant for the tag size. 2011-08-12 14:26:56 +02:00
akwizgran
f0cf825ca9 Javadoc and unit test for SharedSecret. 2011-08-12 12:57:23 +02:00
akwizgran
e896b2d86d Unit tests for ConnectionRecogniserImpl. 2011-08-12 12:26:47 +02:00
akwizgran
a789f49a39 Separated tag encoding from PacketWriterImpl, since it's also needed
by the code that recognises tags. Implemented ConnectionRecogniser
(untested).
2011-08-11 19:55:22 +01:00
akwizgran
7545a1cc8f Moved Bytes to the main package. Added a SharedSecret class to parse
encrypted secrets retrieved from the database.
2011-08-11 19:14:20 +01:00
akwizgran
3edfa5d1ba Call the listeners when contacts are added and removed. 2011-08-11 15:55:30 +01:00
akwizgran
151a360587 Store shared secrets in the database (the crypto component will be
responsible for wrapping/unwrapping them).
2011-08-11 15:41:52 +01:00
akwizgran
07b34cfbab Added a lock for the connectionWindows table and exposed
getConnectionWindow() and setConnectionWindow() through the
DatabaseComponent interface.
2011-08-11 15:19:32 +01:00
akwizgran
0e6638bad6 Retrieve the set of unseen connection numbers from a connection
window.
2011-08-11 13:58:11 +01:00
akwizgran
ac4521152f Unit tests for ConnectionWindowImpl. 2011-08-11 13:37:18 +01:00
akwizgran
e0b86f1232 Moved ConnectionWindow into the transport module and implemented
window sliding (untested).
2011-08-11 13:22:23 +01:00
akwizgran
d5d03192e3 Basic connection window persistence. 2011-08-11 12:56:21 +01:00
akwizgran
f3f0c223c4 PacketWriter is implemented by two classes: PacketWriterImpl and
PacketEncrypter. The separation allows authentication and encryption
to be tested separately.
2011-08-09 17:50:54 +01:00
akwizgran
e9d0021f56 Added interfaces for reading and writing packets and recognising which
contact originated an incoming connection, and an implementation of
the PacketWriter interface.
2011-08-09 16:15:25 +01:00
akwizgran
c2045296eb Associate a timestamp with every subscription, indicating the earliest
acceptable timestamp of subscribed messages. For a new subscription,
the timestamp is initialised to the current time, so a new subscriber
to a group will not immediately receive any messages. (Subscribing to
a group is therefore more like joining a mailing list than joining a
Usenet group - you only receive messages written after you joined.)

Once the database fills up and starts expiring messages, the
timestamps of subscriptions are updated so that contacts need not send
messages that would expire immediately. This is done using the
*approximate* timestamp of the oldest message in the database, to
avoid revealing the presence or absence of any particular message.
2011-08-05 13:34:58 +01:00
akwizgran
5cb4075cfd Added the ability to store transport configuration details in the
database - unlike transport properties, these are not shared with
contacts. For example, when using email as a transport, the address
for sending and receiving emails would be a transport property, while
the username and password for the email server would be transport
configuration details. Transport plugins can update their
configuration details atomically.

Also clarified the terminology for transport and subscription updates.
2011-08-04 13:41:41 +01:00
akwizgran
ec29c4d1d3 Changed the format of transport properties from (key, value) pairs to
(transport name, key, value) triples. This makes it possible for each
transport plugin to update its locally stored properties atomically.
2011-08-04 11:07:28 +01:00
akwizgran
5be9d953ee Use fail() instead of assertTrue(false). 2011-08-03 21:19:04 +01:00
akwizgran
c6ded0227d Unit test for database exception handling. 2011-08-03 21:01:37 +01:00
akwizgran
c90a18278b Allow a maximum length to be specified when reading strings or byte
arrays, check it before allocating the buffer, and always specify the
maximum length when reading untrusted data - otherwise
CountingConsumer will reject the packet, but not before we've tried to
allocate a buffer of the specified size (up to 2 GB).
2011-08-03 19:29:30 +01:00
akwizgran
2740b2b002 s/transport details/transport properties/g 2011-08-02 13:08:44 +01:00
akwizgran
0e48f4ba55 Listeners for local transport updates. 2011-08-02 09:44:15 +01:00
akwizgran
ff0909a0e9 Listeners for subscription changes. 2011-08-02 09:22:54 +01:00
akwizgran
0d0885bf4b Don't throw a DbException if a contact sends duplicate batches. 2011-08-01 17:56:18 +01:00
akwizgran
02c4d9197c Added CounterModeTest to ant buildfile. 2011-08-01 14:36:19 +01:00
akwizgran
9586e0de9c Unit tests for CTR-mode encryption. 2011-08-01 14:01:17 +01:00
akwizgran
adee3e121c Added support for registering listeners with the database that are
called when new messages are available, and a new method
hasSendableMessages(ContactId) that listeners can call to see whether
it's worth trying to create a batch.
2011-07-27 20:27:43 +01:00
akwizgran
e93fbe0b20 Implemented subscription visibility. If a subscription is not visible
to a contact, do not accept, offer, or send messages belonging to that
group to or from that contact, and do not list that group in
subscription updates sent to that contact.
2011-07-27 16:43:19 +01:00
akwizgran
4311b1a224 Added RequestReaderTest to ant buildfile. 2011-07-27 11:08:17 +01:00
akwizgran
b161e5ed1d Request reader and unit test. 2011-07-27 11:06:54 +01:00
akwizgran
0933092295 Added RequestWriterImplTest to ant buildfile. 2011-07-26 22:02:51 +01:00
akwizgran
0cf8477504 Read and write offers. Mostly boilerplate. 2011-07-26 22:00:39 +01:00
akwizgran
9e78837055 Implemented OfferWriter and RequestWriter, made all the writers
reusable (though not thread-safe), and guiced the readers.
2011-07-26 21:36:55 +01:00
akwizgran
426e415676 OK, I think that's enough unit tests for one day. 2011-07-26 18:37:58 +01:00
akwizgran
1e60be4b75 Unit tests for DatabaseComponent. 2011-07-26 18:25:14 +01:00
akwizgran
8ba5b46d59 More unit tests for DatabaseComponent. 2011-07-26 18:11:57 +01:00
akwizgran
bcf8bcbd04 More unit tests. 2011-07-26 17:48:47 +01:00
akwizgran
bc1622b1fa Unit tests and a bugfix. THE SYSTEM WORKS! 2011-07-26 17:24:26 +01:00
akwizgran
dc2476cb25 Unit tests. 2011-07-26 17:12:19 +01:00
akwizgran
1ea385e7af Unit tests and a bugfix for the new database methods. 2011-07-26 16:46:50 +01:00
akwizgran
a86ef2142f Sign the message with the group's private key if the group is
restricted, and check the signature if it should be present.
2011-07-25 21:54:49 +01:00
akwizgran
3f61d0c3df Changed the message format to store the author and group inline - this
doesn't take a huge amount of space and allows every message to be
self-certifying.
2011-07-25 21:14:16 +01:00
akwizgran
586d1739ae Removed salt from unrestricted groups: two unrestricted groups with
the same name will now be treated as the same group (this seems more
intuitive than the alternative).
2011-07-25 20:11:32 +01:00
akwizgran
b1f27757df Switched to 256-bit ECDSA. Modified some tests because two signatures
over the same data are not necessarily identical. Key generation is
fast again - should I be worried? ;-)
2011-07-25 10:49:41 +01:00
akwizgran
fb95565880 Use the BouncyCastle provider so we can be sure we won't get
NoSuchAlgorithmExceptions. Key generation is *slow* - I guess that's a
good sign. ;-)
2011-07-25 10:38:46 +01:00
akwizgran
c98c968b87 Removed unnecessary Raw interface. 2011-07-24 17:47:17 +01:00
akwizgran
941460e3bc Readers, writers and factories for subscription and transport updates. 2011-07-23 21:46:47 +01:00
akwizgran
65be63dc0c Moved writers into their own package, replaced public static fields in
CryptoModule with provider methods.
2011-07-23 18:50:40 +01:00
akwizgran
13f18d9e40 Found the bug, it was just a SQL syntax error. 2011-07-23 11:29:23 +01:00
akwizgran
0edcb31d64 Store group details in the database. Some tests are still failing... 2011-07-23 01:29:18 +01:00