akwizgran
1d25b5a92e
Use null instead of MessageId.NONE and AuthorId.NONE, as for other
...
optional fields.
2011-09-13 14:04:23 +01:00
akwizgran
64548375cc
Offer IDs no longer need to be calculated or echoed in requests.
...
The initiator flag in the transport protocol makes this unnecessary by
linking the two sides of a stream-mode connection, making it
impossible for an attacker to replay the responder's side of a
different connection.
2011-09-12 16:21:17 +01:00
akwizgran
5e0aadd373
Moved the subscription and transport timestamps out of the contacts
...
table so it's not necessary to hold a write lock on the (heavily used)
contacts table to update them.
2011-08-14 14:46:12 +02:00
akwizgran
2c13e35dc4
Calculate the timestamp outside the subscription/transport update
...
writer - this will allow it to be saved so new connections can work
out whether they should send updates.
2011-08-14 13:36:21 +02:00
akwizgran
c2b0f0ab5a
Each request packet should contain the unique ID of the offer to which
...
it responds.
2011-08-13 17:46:19 +02:00
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
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
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
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
b161e5ed1d
Request reader and unit test.
2011-07-27 11:06:54 +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
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
akwizgran
de648daca5
Bundles are gone - the batch-mode and stream-mode protocols now
...
consist of independently encrypted and authenticated packets (Ack,
Batch, Subscriptions and Transports so far).
2011-07-22 22:19:24 +01:00
akwizgran
fcedc34d10
Don't store subscription or transport updates that are older than those already received. Also some small changes to DatabaseComponent impls for readability.
2011-07-14 13:53:13 +01:00
akwizgran
836d30f6df
Retrieve messages from the database in raw form to avoid creating unnecessary short-lived objects. Added timestamps to headers.
2011-07-14 12:01:35 +01:00
akwizgran
d4382fd232
Replaced clearSubscriptions() and addSubscription() with setSubscriptions().
2011-07-14 09:52:05 +01:00
akwizgran
a121dcdda8
New retransmission mechanism, which does away with the need for bundle IDs and should cope better with high bandwidth-delay product links.
2011-07-14 09:39:15 +01:00
akwizgran
e13b0437c3
Rewrote the bundle reading and writing code to eliminate copying. Signatures and digests are now calculated on the fly as the data is read or written. This is a little bit tricky in the case of reading because ReaderImpl uses a lookahead byte, so the signature and message digest need to lag one byte behind.
2011-07-13 16:39:31 +01:00
akwizgran
3d549ea6ac
Builders for incoming and outgoing headers and batches. The protocol and serial components can now be used to serialise, sign, deserialise and verify real bundles (except for message parsing).
2011-07-12 16:50:20 +01:00
akwizgran
e0509db45d
Protocol refactoring. Each bundle now consists of a signed header and zero or more signed batches. There is no overall signature on the bundle, since the bundle's contents may need to be processed before the entire bundle has been read. The protocol does not prevent an adversary from removing batches from a bundle, reordering batches, moving them from one bundle to another, etc. However, since each batch is signed and acknowledged independently, no such guarantees are required. Bundle IDs will go away when the retransmission mechanism is changed.
2011-07-12 12:55:46 +01:00
akwizgran
4f5eb21180
Builders for batches and bundles.
2011-07-11 12:25:04 +01:00
akwizgran
7fb589075d
Added support for local transport details. Each bundle contains the sender's latest transport details.
2011-07-06 19:07:10 +01:00
akwizgran
b548820f77
Transport details for contacts can be stored in the database (these are arbitrary key/value pairs that describe how to reach the contact using a particular transport). Moved the generic ContactId and Rating classes out of the database package of the API.
2011-07-06 16:50:01 +01:00
akwizgran
9fbf0f21de
Contact IDs are now auto-generated.
2011-07-06 14:53:35 +01:00
akwizgran
5e0d580d00
More unit tests for DatabaseComponent.
2011-07-05 20:57:28 +01:00
akwizgran
5d768a5718
DatabaseComponent throws an exception instead of returning silently if a contact is removed during an operation involving that contact. More unit tests.
2011-07-05 18:15:44 +01:00
akwizgran
13b3d4cc03
Unit tests and bugfixes for DatabaseComponent. Merged code from various unique ID classes into a common superclass.
2011-07-05 16:58:44 +01:00
