Squashed all commits that were meejah's between
30d68fb499f300a393fa0ced5980229f4bb6efda
and
33c268ed3a8c63a809f4403e307ecc13d848b1ab
On the branch meejah:1382.markberger-rewrite-rebase.6 as
per review
Remove old hypothesis tests
Fix allmydata.test.cli.test_cli.Errors.test_get
this was broken due to differing share placements
whereas we need to allow this.
Fix test_5_overdue_immutable
This change makes the test not depend on the value
of PYTHONHASHSEED.
Revert "Fix test_5_overdue_immutable"
This reverts commit 5f3696d9a53e7df8781a2c463c7112282397cd69.
fix test to actually hang the first 5 *servers*
sort keys for stable output
use file-context-managers
remove probably-unneeded assert (that fails sometimes)
another non-deterministic test?
correctly calculate happiness
guard with except
fix tests, and happiness calculation
remove debug
fix placements to None
happiness calc shouldn't have to filter None
WIP fixing some tests etc
Comment out all debug print statements
Add hypothesis tests for the old servers of happiness implementation
Attempt to speed up meejah's servers of happiness
WIP
Fix test_calc_happy
WIP
refactor hypothesis to be 'pytest style' and add another one
get rid of 'shares->set(1 thing)' in generate_mappings return
Add a unittest hypothesis came up with
fix tests since we return peers, not sets-of-1-peer
add more debug
add a unit-test that's like test_problem_layout_ticket_1128
fix bug
add a note
fix utest
unit-test for bigger numbers
re-insert markberger code for testing
results of pairing with david
unit-test for happiness calculation
unused function
put old servers_of_happiness() calculation back for now
test for calculate_happiness
remove some redundant functions
Add comments 10 and 8 from the servers of happiness spec
Fix bug in _filter_g3 for servers of happiness
Remove usage of HappinessUpload class
here we modifying the PeerSelector class.
we make sure to correctly calculate the happiness value
by ignoring keys who's value are None...
Remove HappinessUpload and tests
Replace helper servers_of_happiness
we replace it's previous implementation with a new
wrapper function that uses share_placement
If no session management is performed, txi2p starts a process-wide session the
first time a connection (client or server) is opened; all subsequent connections
use that session and its configuration properties.
This commit ensures that the same properties are passed to both client and
server endpoints, so that the correct I2P Destination is started regardless of
whether the first connection made by Tahoe-LAFS is for a client or server.
Closes#2858.
Previously this looked at sys.platform to decide what dependencies to
include. The problem with that approach is that wheels built on a unix box
won't work on windows (and vice versa), when the (pure-python) Tahoe wheels
aren't supposed to be platform-dependent.
setup.py provides a syntax to express this properly, so wheels created on
either platform will include the pypiwin32 dependency in the metadata, but
marked as only being relevant when installing on a win32 platform.
closes ticket:2763
Also adds a --poll-interval option to both 'magic-folder join'
and 'magic-folder create' so that the integration tests can pass
something "very short".
* replace "last_details" with "non_connected_statuses" dict
* rename "last_connection_summary" to just "summary"
* for connected servers, show other hints in a tooltip
* for not-yet-connected servers, show all hints in a list
* build the list (in STAN) on the server side, not using IContainer
This shows current-connection info, and provides per-hint status details in a
tooltip.
The "Connection" section no longer shows seconds-since-loss when the server
was not connected (previously it showed seconds-since-connect when connected,
and flipped to seconds-since-loss when disconnected). We already have the
"Last RX" column, which is arguably more meaningful (and I can't think of a
good case when these would differ), so we don't really need
seconds-since-loss, and the new ConnectionStatus doesn't track it anyways.
So now the "Connection" timestamp for non-connected servers is just
"N/A" (both the main text and the tooltip). The "Introducers" section was
changed the same way.
This moves the per-server connection timestamp out of the nickname/serverid
box and over into the Connection box. It also right-floats all timestamps,
regardless of which box they're in, which makes them share the box with
connection_status more politely.
Internally, this adds code to create ConnectionStatus objects when necessary.
Previously, "tahoe create-node" without an --introducer= argument would
result in the literal string "None" being written into tahoe.cfg:
[client]
introducer.furl = None
We were using config.get("introducer",""), but that didn't suffice because
the key was actually present: it just had a value of None, which then got
stringified into "None" when writing out tahoe.cfg.
This briefly caused test/cli/test_create to fail, as the startup code tried
to parse "None" as a FURL. This only happened against a development version
of Foolscap which accidentally became sensitive to unparseable FURLs in
started Reconnectors. I fixed that in the final foolscap-0.12.5 release, so
we shouldn't hit this bug, but I wanted to fix it properly in the tahoe-side
source.
As discussed in this week's meeting, since we don't yet know why some
flavors of linux have slightly different inotify behavior than others,
and since we believe the actual functionality is not significantly
impacted, and since the red buildbot is reducing our confidence that the
other tests are passing, and since we have a release coming up: we're
marking the one troublesome test as ".todo". We expect that the test
will be fixed soon (perhaps to accept either 3 or 4 events), but not
necessarily before the 1.12 release.
refs ticket:2834
This forces the Uploader and Downloader to implement a _scan_delay
method and makes the naming more consistent with what's actually
happening. Also, fix a few "bugs" in the names of args in the
mocks for some tests.
We use it for two things: to create the foolscap connection handler, and
to possibly start an .onion listener at startup.
This also updates node._common_config_sections to accept the new tor
settings written by create-node/create-introducer.
This adds tor-related CLI arguments to "create-node" and
"create-introducer", to control exactly how we should be using Tor.
* --tor-launch
* --tor-executable=
* --tor-control-port=
I went with "--tor-launch" instead of "--launch-tor" for consistency. I
don't particularly like the grammatical flow of it, and it doesn't
actually put all the tor-related arguments next to each other in the
--help output (the flags are put in one block, then the parameters in
the next). But it seems slightly more consistent to start all the
tor-related argument names with a "--tor*" prefix.
This uses a unix-domain control port, and includes test coverage.
create_onion() displays pacifier messages, since the allocate-onion step
takes around 35 seconds
All server-like nodes (storage servers and introducers both) will need
this for the tor state directory and .onion private key file, and it
needs to exist before the config is written, so tor onion-service
private keys can be placed there.
Also remove a redundant import.
This puts the right inlineCallbacks in place to allow
write_node_config() to return a Deferred. The upcoming Tor support will
need this (since it must wait for an .onion address to be allocated
before it can write tahoe.cfg's tub.port and tub.location lines).
which uses SHA1 to combine the file's storage index (known as "peer
selection index" in this context) and each server's "server permutation
seed". This is the only thing in tahoe that uses SHA1.
With this change, we stop importing sha1 from anywhere else.
I think the preferred way to listen on both IPv4 and IPv6 will be to use
"--port=tcp:PORT,tcp6:PORT". This is now reflected in the docs.
refs ticket:867
This enables an I2P-only node, which disables TCP entirely (instead of
mapping TCP to Tor, which was the only other option that
reveal-IP-address=False would allow).
closes ticket:2824
parse_cli() got added during the async-CLI-dispatch work
assertRaises/assertFailure have been in Twisted for a while, but I only
learned about them recently. Over time I'm looking forward to changing
all tahoe tests to use them (and getting rid of ShouldFailMixin/etc).
In addition, CLI functions are allowed to use sys.exit() instead of
always needing to return the exit code as an integer.
runner.py now knows about the blocking httplib calls in scripts/cli and
scripts/magic_folder, and uses deferToThread() to invoke them. Those
functions cannot return a Deferred: when rewrite them to use twisted.web
or treq, we'll remove this deferToThread call.
Option parsing was split out to a separate function for testing. We now
use twisted.internet.task.react() to start the reactor, which required
changing the way runner.py is tested.
closes ticket:2826
The main part of CLITestMixin.do_cli() was split into a standalone
function named run_cli(), leaving do_cli() as a method which includes a
nodedir in the arguments (for use by GridTestMixin tests which do a lot
of CLI operations against one of their client nodes, for which adding
the extra --nodedir argument would be ugly).
These are obsolete. Tests are run with 'tox', or by running 'trial
allmydata' from a populated virtualenv. A populated virtualenv is also
the right way to get a repl: just run 'python'.
refs ticket:2735
The google image chart API has been deprecated since 2012, sending the
URL to google leaks server IDs and the client's IP address (especially
important when the client is otherwise behind Tor), and the X-axis has
no units anyways.
refs ticket:1942 , which is both about removing the URL-based chart, and
eventually replacing it with a browser-rendered d3.js-based one
So "tahoe create-node --hide-ip" causes "reveal-IP-address = false" to
get written into tahoe.cfg . This also changes the default tahoe.cfg to
include "reveal-IP-address = true", for clarity.
refs ticket:1010
(instead of using a copy). Foolscap-0.12.3 fixes a problem with
allocate_tcp_port() that was causing intermittent test failures. I think
it makes more sense to use Foolscap's copy (and fixes) than to keep
re-copying it into Tahoe each time it changes.
If/when we manage to stop depending upon foolscap for server RPC, we can
re-copy this back into tahoe's source tree.
refs ticket:2795
We now use::
tub.port = disabled
tub.location = disabled
instead of using an empty value (but the key still being present, since
if the key is missing entirely, that means "be automatic").
closes ticket:2816
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
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
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.
YAML, like JSON, is all-unicode. StorageFarmBroker.set_static_servers()
is defined to take an all-unicode dictionary (the "storage:" key from
private/servers.yaml), so the server_id keys it gets will be unicode.
NativeStorageServer is defined to accept server_ids which are bytes (at
least it is now). The tests were only passing bytes into
set_static_servers(), whereas a real launch passed unicode in, causing a
problem when NativeStorageServer tried to base32.a2b() the pubkey and
choked on the unicode it received.
This fixes set_static_servers() to convert the server_id to bytes, and
changes NativeStorageServer to assert that it gets bytes. It also fixes
the test to match real usage more closely.
The node now attempts to create Tor/I2P connection handlers (if the
right libraries are available), and will use them for tor/i2p FURL hints
by default. For now it only creates default handlers: there is not yet
any code to interpret the `[tor]`/`[i2p]` sections of tahoe.cfg which
would let you override that process.
The node also parses the `[connections]` section, allowing `tcp: tor` to
use Tor for all outbound TCP connections. It defaults to `tcp: tcp`, of
course.
Static storage-server connections will now honor the `connections:`
overrides in `servers.yaml`, allowing specific servers to use TCP where
they would normally be restricted to Tor.
refs ticket:2788
refs ticket:517
This adds Node._create_tub(), which knows how to make a Tub with all the
right options and connection handlers that were specified in
tahoe.cfg (the connection handlers are disabled for now, but they'll get
implemented soon).
The new Node.create_main_tub() calls it. This main Tub is used:
* to connect to the Introducer
* to host the Helper (if enabled)
* to host the Storage Server (if enabled)
Node._create_tub() is also passed into the StorageFarmBroker, which
passes it into each NativeStorageServer, to create the (separate) Tub
for each server connection. _create_tub knows about the options, and
NativeStorageServer can override the connection handlers. This way we
don't need to pass tub options or default handlers into Client,
StorageFarmBroker, or NativeStorageServer.
A number of tests create NativeStorageServer objects: these were updated
to match the new arguments. test_storage_client was simplified because
we no longer need to mock out the Tub() constructor.
A minimally-defined static server only specifies server_id,
anonymous-storage-FURL, and permutation-seed-base32. But the WUI Welcome
page wouldn't render (it raised an exception) without also defining
nickname and version. This allows those values to be missing.
This follows the latest comments in ticket:2788, moving the static
server definitions from "connections.yaml" to "servers.yaml". It removes
the "connections" and "introducers" blocks from that file, leaving it
responsible for just static servers (I think connections and introducers
can be configured from tahoe.cfg).
This feeds all the static server specs to the StorageFarmBroker in a
single call, rather than delivering them as simulated introducer
announcements. It cleans up the way handlers are specified too (the
handler dictionary is ignored, but that will change soon).
They're the same thing, but knowing that is the responsibility of the
caller, not NativeStorageServer. Try to normalize on "server_id" as the
spelling. Remove support for missing key_s, now that we require V2
introductions.
This is a change I've wanted to make for many years, because when we get
to HTTP-based servers, we won't have tubids for them. What held me back
was that there's code all over the place that uses the serverid for
various purposes, so I wasn't sure it was safe. I did a big push a few
years ago to use IServer instances instead of serverids in most
places (in #1363), and to split out the values that actually depend upon
tubid into separate accessors (like get_lease_seed and
get_foolscap_write_enabler_seed), which I think took care of all the
important uses.
There are a number of places that use get_serverid() as dictionary key
to track shares (Checker results, mutable servermap). I believe these
are happy to use pubkeys instead of tubids: the only thing they do with
get_serverid() is to compare it to other values obtained from
get_serverid(). A few places in the WUI used serverid to compute display
values: these were fixed.
The main trouble was the Helper: it returns a HelperUploadResults (a
Copyable) with a share->server mapping that's keyed by whatever the
Helper's get_serverid() returns. If the uploader and the helper are on
different sides of this change, the Helper could return values that the
uploader won't recognize. This is cosmetic: that mapping is only used to
display the upload results on the "Recent and Active Operations" page.
I've added code to StorageFarmBroker.get_stub_server() to fall back to
tubids when looking up a server, so this should still work correctly
when the uploader is new and the Helper is old. If the Helper is new and
the uploader is old, the upload results will show unusual server ids.
refs ticket:1363
This re-factors the magic-folder tests to abstract
the whole "do a file operation" so we can properly
send fake (or wait for real) inotify events to the
uploader/downloader. This speeds up the tests quite
a bit and makes test_alice_bob reasonable again (at
about 1.5s instead of over 30s).
We no longer need the complexity of choosing the application name at
runtime. This removes the setup.py code which populates the _appname.py
file, and the code in __init__.py which reads it. It does not yet remove
the tests which compare the output of e.g. `tahoe --version` against
`allmydata.__appname__`, which I think could be removed, but that's more
invasive than I want to do right now.
closes ticket:2754
This doesn't reveal very much information, but does tell
you if magic-folder is currently working and if not it will
indicate when the last attempt to do a remote scan was.
Improve error-handling for directories if you ask for JSON from
the /uri endpoint, but an error occurs (you get a proper HTTP
status code and a valid JSON object).
For 'tahoe magic-folder status' e now retrieve *all* the remote data
required in the CLI before doing anything else so that errors can be
shown immediately. Use the improved JSON endpoints to print better
errors.
This keeps re-trying the initial magic-folder scan and alerts
the user (via logs only :/) until it succeeds at least once.
After this happens and the node has started up, it will continue
to re-try if enough storage servers go away later such that the
remote collection can't be retrieved.
Previously, this file importing "allmydata.immutable" but assuming that
"allmydata.immutable.upload" was available, which only worked if some
other file had imported upload.py . This didn't affect running the
entire test suite (something imported upload.py before anything else
needed it), but caused errors when running specific tests like
test_repairer.py .
I can't currently test this (my OS-X laptop can't run those tests), but
based on how much time test_magic_folder takes on the buildbots, I
expect oneshare=True to help considerably.
This saves more time (as measured on my laptop):
* test_sftp: 17.7s -> 13s
* test_dirnode: 26.5s -> 20s
* test_ftp, test_configutil, test_web show negligible speedups
As before, some tests care about the number of shares, generally ones
which delete or corrupt shares and then expect to see the errors get
noticed or fixed. Those tests continue to use k=3/N=10.
Most of the CLI tests don't care about the actual shares. Configuring
the test client to use k=N=1 reduces the runtime from 180s to 90s on my
laptop.
A few tests *do* care, like test_check (which delete some shares, then
assert that 'tahoe check' shows the damage). These still use k=3/N=10.
Many of the test cases would exercise two copies of each file: one with
k=3/N=10, and a second with k=127/N=255 (255 being the maximum supported
by zfec).
Large number of shares increases the overhead of the testing apparatus,
which is pushing those shares to lots of local servers.
I don't think the "max_shares" case is necessary, and it takes forever.
Because of it, "mutable.Update" was consuming 15% of the total test
runtime, and a third of that was just a single
function (test_replace_locations_max_shares, now deleted). On a
Raspberry Pi 3 (our "slow computer" benchmark), including branch
coverage, this one class took 42 minutes to complete, and requires
disabling a bunch of timeouts to finish at all.
The total number of shares in a file ("N") affects one thing: the
width (and thus height) of the share hash tree. This should be exercised
in test_hashtree.
The number of required shares ("k") affects one thing: the segment size
must be a multiple of k. I don't think we need to exercise this, but if
so, it could be exercised by a few small values for k, rather than 127.
Removing the max_shares cases saves 82% of the mutable.update
runtime (on top of the previous three-segment fix), reducing it from 64s
to 11.3s on my laptop.
