This was triggered when the initial Introducer connection failed, so the
node read the introducer_cache.yaml from disk. That always returns
unicode strings, and the StorageFarmBroker insisted that it's
server-IDs (aka "key_s") were bytestrings.
The tests were extended to exercise the code that loads from disk and
delivers to the StorageFarmBroker, and more preconditions were put in
place to catch this sort of thing earlier next time.
closes ticket:2817
This adds a safety flag named `[node] reveal-IP-address`, for which the
default value is True. When this is set to False, any configuration that
might reveal the node's IP address (to servers, or the external network)
will cause a PrivacyError to be raised at startup, terminating the node
before it gets a chance to betray the user's privacy. It also adds docs
and tests.
refs ticket:1010
This only catches txtorcon not being installed (which should be fixed by
doing `pip install tahoe-lafs[tor]`). It doesn't notice that the Tor
daemon is not running (which we can't detect during startup, only
afterwards, when it's harder to notify the user), in which case Tor
connections (and all connections when "tcp = tor" is enabled) will just
fail silently.
This introduces a py.test-based integration suite (currently just
containing magic-folder end-to-end tests). Also adds a tox environment
("integration") to run them.
The test setup is:
- a "flogtool gather" instance
- an Introducer
- five Storage nodes
- Alice and Bob client nodes
- Alice and Bob have paired magic-folders
This removes the section that describes automatic configuration using
transport-agnostic endpoint-centric tub.port strings. That was the
approach where tub.port used "onion:80:hiddenServiceDir=PATH", and
Foolscap was able to query the generated Listener to find out what
address it was supposed to advertise. We considered this for a long
time, but in the end decided to use a more static approach, where
foolscap/tahoe never try to guess it's location: Tahoe always requires
tub.location= to be set.
When we get automatic configuration implemented, it'll be a simple CLI
argument, something like "tahoe create-server --listen=tor".
Instead, this document now explains how to configure Tor to create the
hidden service, then how to copy the generated .onion address into the
tahoe config.
This also removes a lot of other text that seems irrelevant now, and
refers the user to the tahoe.cfg docs (configuration.rst) instead of
including all the `[tor]`/`[i2p]` docs inline.
Closes ticket:2815
Updated config docs. Added errors if we're not listening but were told
to enable storage, helper, or if we're the Introducer server.
closes ticket:2816
"gifts" are third-party references (where Alice sends Bob a reference to
Carol, and Carol lives in a different Tub than either Alice or Bob).
Tahoe doesn't currently use these, and they make it possible for e.g. a
server to provoke a client into making a connection to an IP address of
the server's choosing. If the client isn't configured otherwise, this
would use raw TCP (revealing the client's IP address) even if the
connection to the server used Tor.
A connection policy of `tcp: tor` would block this, but it seems like a
good idea to disable gifts entirely.
closes ticket:2810
This adds client-side support for automatically connecting to Tor and
I2P -hosted servers (when the server advertises a "tor:" or "i2p:"
-style connection hint, and when the necessary extra libraries are
installed, and when a Tor/I2P daemon is running and reachable at the
default location).
The new `[connections]` section of `tahoe.cfg` can include `tcp: tor` to
make all TCP connections use Tor instead. This ought to hide the
client's IP address from servers and the Introducer.
The new `[tor]` and `[i2p]` sections of `tahoe.cfg` will control how
Tor/I2P connections are made (whether to spin up a new Tor daemon, what
port to use to connect to an existing one, etc). `configuration.rst`
explains the possible syntax. Note that only the default I2P connection
method is implemented in Foolscap-0.12.2, but not the alternatives, so
many options that are legal syntax for `tahoe.cfg` will not work yet.
It also enables the `connections` section of `private/servers.yaml` to
override the connection-handler mapping.
refs ticket:517
closes ticket:2788
Foolscap has limitations that prevent us from accepting anything but a
TCP endpoint, but that will change in the future, so make the tahoe.cfg
syntax accept an endpoint, but then reject non-TCP ones. See the ticket
for details: refs ticket:2813.
This depends upon the new `foolscap.connections.tor.socks_port(host,
port)` API in foolscap-0.12.2, so it bumps the dependency to that (the
previous commit depended upon 0.12.1, but I hadn't gotten around to
updating the dep before now).
Note that many of the Foolscap handler-creation functions are still
stubbed out, so Tahoe won't be able to honor the full range of config
syntax until foolscap support is complete.
