Commit Graph

80 Commits

Author SHA1 Message Date
Neil Alexander
fe82e1f725
Separate muxes for public and internal APIs (#1056)
* Separate muxes for public and internal APIs

* Update client-api-proxy and federation-api-proxy so they don't add /api to the path

* Tidy up

* Consistent HTTP setup

* Set up prefixes properly
2020-05-22 11:43:17 +01:00
Kegsay
24d8df664c
Fix #897 and shuffle directory around (#1054)
* Fix #897 and shuffle directory around

* Update find-lint

* goimports

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
2020-05-21 14:40:13 +01:00
Kegsay
1414922026
sytest: Make 'Inbound federation can backfill events' pass (#1051)
* sytest: Make 'Inbound federation can backfill events' pass

This breaks 'Outbound federation can backfill events' because now
we are returning the right number of events, which the previous
test was relying on.

Previously, /messages was backfilling the membership event, causing
the test to pass. Now we are no longer backfilling the membership
event due to the change in this commit, causing the test to fail.

The test should instead be returning the membership event locally
from synacpis database, but it doesn't do it fast enough, resulting
in a no-op /sync response with a next_batch=s0_0 which will never
pick up the local membership event when it rolls in. The test
does attempt to retry, but doesn't take the new next_batch=s1_0
resulting in it missing from the /messages response.

* Linting
2020-05-20 16:04:31 +01:00
Kegsay
260e69d138
Make "Outbound federation can backfill events" pass sytest (#1049)
- Use a backfill limit of 100 regardless of what was asked.
- Special case the create event for `StateIDsBeforeEvent`
- Trim to the limit in `syncapi`
2020-05-19 18:42:55 +01:00
Kegsay
7ca230e931
Cleanup syncapi topology logic (#1035)
* Cleanup syncapi topology logic

* Variable renaming

* comments
2020-05-14 17:30:16 +01:00
Kegsay
5e9dce1c0c
syncapi: Rename and split out tokens (#1025)
* syncapi: Rename and split out tokens

Previously we used the badly named `PaginationToken` which was
used for both `/sync` and `/messages` requests. This quickly
became confusing because named fields like `PDUPosition` meant
different things depending on the token type. Instead, we now have
two token types: `TopologyToken` and `StreamingToken`, both of
which have fields which make more sense for their specific situations.

Updated the codebase to use one or the other. `PaginationToken` still
lives on as `syncToken`, an unexported type which both tokens rely on.
This allows us to guarantee that the specific mappings of positions
to a string remain solely under the control of the `types` package.
This enables us to move high-level conceptual things like
"decrement this topological token" to function calls e.g
`TopologicalToken.Decrement()`.

Currently broken because `/messages` seemingly used both stream and
topological tokens, though I need to confirm this.

* final tweaks/hacks

* spurious logging

* Review comments and linting
2020-05-13 12:14:50 +01:00
Kegsay
36bbb25561
Fix ordering when backfilling (#1000)
* Fix ordering when backfilling

The problem was that we weren't sorting the returned events
by depth when sending them back to the caller, instead we
were sorting by prev_events which is not the same thing.

* Fixup tests
2020-05-01 16:41:13 +01:00
Kegsay
b28674435e
Correctly generate backpagination tokens for events which have the same depth (#996)
* Correctly generate backpagination tokens for events which have the same depth

With tests. Unfortunately the code around here is hard to understand.
There will be a subsequent PR which fixes this up now that we have a test
harness in place.

* Add postgres impl

* More linting

* Fix psql statement so it actually works
2020-05-01 11:01:34 +01:00
Neil Alexander
e15f6676ac
Consolidation of roomserver APIs (#994)
* Consolidation of roomserver APIs

* Comment out alias tests for now, they are broken

* Wire AS API into roomserver again

* Roomserver didn't take asAPI param before so return to that

* Prevent roomserver asking AS API for alias info

* Rename some files

* Remove alias_test, incoherent tests and unwanted appservice integration

* Remove FS API inject on syncapi component
2020-05-01 10:48:17 +01:00
Kegsay
6d832ae544
Implement backfill in the roomserver (#983)
* Initial cut for backfilling

The syncserver now asks the roomserver via QueryBackfill (which already
existed to *handle* backfill requests) which then makes federation requests
via gomatrixserverlib.RequestBackfill.

Currently, tests fail on subsequent /messages requests because we don't know
which servers are in the room, because we are unable to get state snapshots
from a backfilled event because that code doesn't exist yet.

* WIP backfill, doesn't work

* Make initial backfill pass checks

* Persist backfilled events with state snapshots

* Remove debug lines

* Linting

* Review comments
2020-04-28 11:46:47 +01:00
Neil Alexander
87f05721b0 Update gomatrixserverlib 2020-04-27 15:47:36 +01:00
Neil Alexander
dadb06f6ad
Use topological ordering for /messages response (#966)
* Use topological ordering for /messages response

* Update gomatrixserverlib
2020-04-15 16:10:18 +01:00
Neil Alexander
895a72b6ee
Move /room/{roomID}/state endpoints into client API (#606) (#962)
* Move /room/{roomID}/state endpoints into client API (#606)

* Update sytest-whitelist

* Blacklist tests which rely on endpoints we don't implement
2020-04-14 18:36:08 +01:00
Neil Alexander
05e1ae8745
Further room version wiring (#936)
* Room version 2 by default, other wiring updates, update gomatrixserverlib

* Fix nil pointer exception

* Fix some more nil pointer exceptions hopefully

* Update gomatrixserverlib

* Send all room versions when joining, not just stable ones

* Remove room version cquery

* Get room version when getting events from the roomserver database

* Reset default back to room version 2

* Don't generate event IDs unless needed

* Revert "Remove room version cquery"

This reverts commit a170d5873360dd059614460acc8b21ab2cda9767.

* Query room version in federation API, client API as needed

* Improvements to make_join send_join dance

* Make room server producers use headered events

* Lint tweaks

* Update gomatrixserverlib

* Versioned SendJoin

* Query room version in syncapi backfill

* Handle transaction marshalling/unmarshalling within Dendrite

* Sorta fix federation (kinda)

* whoops commit federation API too

* Use NewEventFromTrustedJSON when getting events from the database

* Update gomatrixserverlib

* Strip headers on federationapi endpoints

* Fix bug in clientapi profile room version query

* Update gomatrixserverlib

* Return more useful error if room version query doesn't find the room

* Update gomatrixserverlib

* Update gomatrixserverlib

* Maybe fix federation

* Fix formatting directive

* Update sytest whitelist and blacklist

* Temporarily disable room versions 3 and 4 until gmsl is fixed

* Fix count of EDUs in logging

* Update gomatrixserverlib

* Update gomatrixserverlib

* Update gomatrixserverlib

* Rely on EventBuilder in gmsl to generate the event IDs for us

* Some review comments fixed

* Move function out of common and into gmsl

* Comment in federationsender destinationqueue

* Update gomatrixserverlib
2020-03-27 16:28:22 +00:00
Kegsay
6bac7e5efd
Implement backfill over federation (#938)
* Implement history visibility checks for /backfill

Required for p2p to show history correctly.

* Add sytest

* Logging

* Fix two backfill bugs which prevented backfill from working correctly

- When receiving backfill requests, do not send the event that was in the original request.
- When storing backfill results, correctly update the backwards extremity for the room.

* hack: make backfill work multiple times

* add sqlite impl and remove logging

* Linting
2020-03-24 12:20:10 +00:00
Neil Alexander
ad5849d222
HeaderedEvents in sync API (#922)
* Use HeaderedEvent in syncapi

* Update notifier test

* Fix persisting headered event

* Clean up unused API function

* Fix overshadowed err from linter

* Write headered JSON to invites table too

* Rename event_json to headered_event_json in syncapi database schemae

* Fix invites_table queries

* Update QueryRoomVersionCapabilitiesResponse comment

* Fix syncapi SQLite
2020-03-19 12:07:01 +00:00
Abhinav Krishna C K
ec38783192
maintenance: Fix matrix-org#896 use %w format verb to wrap errors (#916)
* maintenance: Fix matrix-org#896 use %w format verb to wrap errors

* In Go version 1.13 a new formatting verb introduced for fmt.Errorf
  %w https://blog.golang.org/go1.13-errors

* update %s to %w to wrap errors.

* Update all instances of error type to use %w

Signed-off-by: Abhinav Krishna C K <me@abhy.me>

Co-authored-by: Kegsay <kegan@matrix.org>
2020-03-18 12:48:51 +00:00
Kegan Dougal
87283e9de7 bugfix: fix sytest 155 by actually returning depth+1 and not 0 2020-03-06 14:31:12 +00:00
Neil Alexander
59a1f4b8ed
Remove httputil.LogThenError so that the line numbers are reported properly - make error reporting slightly more useful (#879) 2020-03-02 16:20:44 +00:00
Kegsay
b6ea1bc67a
Support sqlite in addition to postgres (#869)
* Move current work into single branch

* Initial massaging of clientapi etc (not working yet)

* Interfaces for accounts/devices databases

* Duplicate postgres package for sqlite3 (no changes made to it yet)

* Some keydb, accountdb, devicedb, common partition fixes, some more syncapi tweaking

* Fix accounts DB, device DB

* Update naffka dependency for SQLite

* Naffka SQLite

* Update naffka to latest master

* SQLite support for federationsender

* Mostly not-bad support for SQLite in syncapi (although there are problems where lots of events get classed incorrectly as backward extremities, probably because of IN/ANY clauses that are badly supported)

* Update Dockerfile -> Go 1.13.7, add build-base (as gcc and friends are needed for SQLite)

* Implement GET endpoints for account_data in clientapi

* Nuke filtering for now...

* Revert "Implement GET endpoints for account_data in clientapi"

This reverts commit 4d80dff4583d278620d9b3ed437e9fcd8d4674ee.

* Implement GET endpoints for account_data in clientapi (#861)

* Implement GET endpoints for account_data in clientapi

* Fix accountDB parameter

* Remove fmt.Println

* Fix insertAccountData SQLite query

* Fix accountDB storage interfaces

* Add empty push rules into account data on account creation (#862)

* Put SaveAccountData into the right function this time

* Not sure if roomserver is better or worse now

* sqlite work

* Allow empty last sent ID for the first event

* sqlite: room creation works

* Support sending messages

* Nuke fmt.println

* Move QueryVariadic etc into common, other device fixes

* Fix some linter issues

* Fix bugs

* Fix some linting errors

* Fix errcheck lint errors

* Make naffka use postgres as fallback, fix couple of compile errors

* What on earth happened to the /rooms/{roomID}/send/{eventType} routing

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
2020-02-13 17:27:33 +00:00
Thibaut CHARLES
6942ee1de0
Upgrade gomatrixserverlib dependency (#808)
* Upgrade gomatrixserverlib dependency

Signed-off-by: Thibaut CHARLES cromfr@gmail.com

* Added missing passing sytest

Signed-off-by: Thibaut CHARLES cromfr@gmail.com

* Fix login using identifier key

Not a full fix, it only really supports logging in with
the localpart of an mxid.

Signed-off-by: Serra Allgood <serra@allgood.dev>

* Replace deprecated prometheus.InstrumentHandler and unsafe time.Ticker

* goimports

* re-add temporarily missing deps?

* Refactor InstrumentHandlerCounter definition

* URL decode args

* Return server names  (#833)

* Remove unnecessary map->array processing

* Return server names in room federation directory query

* Knock off a TODO

* Fix /send_join and /send_leave (#821)

Fix the /send_join and /send_leave endpoints, so that they use the v2 endpoints as mandated by MSC1802. Also comment out the SyTest tests that are failing because of lack of support for the v1 endpoints.

* Refuse /send_join without m.room.create (#824)

Signed-off-by: Abhishek Kumar <abhishekkumar2718@gmail.com>

* AS should use the v1 endpoint, rather than r0 (#827)

* docker: Passthrough parameters to dendrite-monolith-server

* Fix copy & paste error (#812)

* Use gomatrixserverlib.Transaction instead of local type (#590) (#811)

* Move files back if linting fails (#810)

* replaced gometalinter description with golangci-lint (#837)

* Amend syncapi SQL queries to return missing columns (#840)

* This commit updates a couple of the syncapi SQL queries to return additional columns that are required/expected by rowsToStreamEvents in output_room_events_table.go.

It's not exactly clear to me yet what transaction_id and session_id do, but these being added n #367 results in state events breaking the /sync endpoint.

This is a temporary fix. We need to come up with a better solution.

* gomatrix to gomatrixserverlib on some weird line change

* Tweaks from @babolivier review comments

* Implement storage interfaces (#841)

* Implement interfaces for federationsender storage

* Implement interfaces for mediaapi storage

* Implement interfaces for publicroomsapi storage

* Implement interfaces for roomserver storage

* Implement interfaces for syncapi storage

* Implement interfaces for keydb storage

* common.PartitionStorer in publicroomsapi interface

* Update copyright notices

* make cmd directory path absolute in build.sh (#830)

* Resync testfile with current sytest pass/fail (#832)

* Resync testfile with current sytest pass/fail

* Add displayname test

* Fall back to postgres when database connection string parsing fails (#842)

* Fall back to postgres when parsing the database connection string for a URI schema fails

* Fix behaviour so that it really tries postgres when URL parsing fails and it complains about unknown schema if it succeeds

* Fix #842

* Fix #842 - again...

* Federation fixes (#845)

* Update gomatrixserverlib to p2p commit 92c0338, other tweaks

* Update gomatrixserverlib to p2p commit e5dcc65

* Rewrite getAuthChain

* Update gomatrixserverlib in go.mod/go.sum

* Correct a couple of package refs for updated gmsl/gomatrix

* Update gomatrixserverlib ref in go.mod/go.sum

* Update getAuthChain comments following @babolivier review

* Add a Sytest blacklist file (#849)

* Add more passing tests to the testfile, add test blacklist file (#848)

* CS API: Support for /messages, fixes for /sync (#847)

* Merge forward

* Tidy up a bit

* TODO: What to do with NextBatch here?

* Replace SyncPosition with PaginationToken throughout syncapi

* Fix PaginationTokens

* Fix lint errors

* Add a couple of missing functions into the syncapi external storage interface

* Some updates based on review comments from @babolivier

* Some updates based on review comments from @babolivier

* argh whitespacing

* Fix opentracing span

* Remove dead code

* Don't overshadow err (fix lint issue)

* Handle extremities after inserting event into topology

* Try insert event topology as ON CONFLICT DO NOTHING

* Prevent OOB error in addRoomDeltaToResponse

* Thwarted by gocyclo again

* Fix NewPaginationTokenFromString, define unit test for it

* Update pagination token test

* Update sytest-whitelist

* Hopefully fix some of the sync batch tokens

* Remove extraneous sync position func

* Revert to topology tokens in addRoomDeltaToResponse etc

* Fix typo

* Remove prevPDUPos as dead now that backwardTopologyPos is used instead

* Fix selectEventsWithEventIDsSQL

* Update sytest-blacklist

* Update sytest-whitelist

* Some fixes for #847 (#850)

* Fix a couple of cases where backfilling events we already had causes panics, hopefully fix ordering of events, update GMSL dependency for backfill URL fixes

* Remove commented out lines from output_room_events_table schema

* Wire up publicroomsapi for roomserver events (#851)

* Wire up publicroomsapi to roomserver events

* Remove parameter that was incorrectly brought over from p2p work

* nolint containsBackwardExtremity for now

* Store our own keys in the keydb (#853)

* Store our own keys in the keydb

The DirectKeyFetcher makes the assumption that you can always reach the key/v2/server endpoint of any server, including our own. We previously haven't bothered to store our own keys in the keydb so this would mean we end up making key requests to ourselves.

In the libp2p world as an example, self-dialling is not possible, therefore this would render it impossible to get our own keys.

This commit adds our own keys into the keydb so that we don't create unnecessarily (and maybe impossible) requests.

* Use golang.org/x/crypto/ed25519 instead of crypto/ed25519 for pre-Go 1.13

* More sync fixes (#854)

* Further sync tweaks

* Remove unnecessary blank line

* getBackwardTopologyPos always returns a usable value

* Revert order fixing

* Implement GET endpoints for account_data in clientapi (#861)

* Implement GET endpoints for account_data in clientapi

* Fix accountDB parameter

* Remove fmt.Println

* Add empty push rules into account data on account creation (#862)

* Handle kind=guest query parameter on /register (#860)

* Handle kind=guest query parameter on /register

* Reorganized imports

* Pass device_id as nil

* Added tests to systest-whitelist

* Update sytest-whitelist

* Blacklist 'displayname updates affect room member events' (#859)

* Room version abstractions (#865)

* Rough first pass at adding room version abstractions

* Define newer room versions

* Update room version metadata

* Fix roomserver/versions

* Try to fix whitespace in roomsSchema

* Implement room version capabilities in CS API (#866)

* Add wiring for querying the roomserver for the default room version

* Try to implement /capabilities for room versions

* Update copyright notices

* Update sytests, add /capabilities endpoint into CS API

* Update sytest-whitelist

* Add GetDefaultRoomVersion

* Fix cases where state package was shadowed

* Fix version formatting

* Update Dockerfile to Go 1.13.6

* oh yes types I remember

* And fix the default too

* Update documentation for Go 1.13 (#867)

* Pass cfg by reference around the codebase (#819)

* Pass cfg by reference around the codebase

* Merge branch 'master' into pass-cfg-by-ref

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>

* Implement missing device management features (#835)

* Implement missing device management features

Signed-off-by: Till Faelligen <tfaelligen@gmail.com>

* Add a little more documentation

* Undo changes

* Use non-anonymous struct to decode devices list

* Update sytest-whitelist

* Update sytest-whitelist

* Update sytest-blacklist

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>

* Adding sslmode: disable to sytest server config (#813)

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>

* Fix AppService bind addrs in test (#805)

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>

* Always defer *sql.Rows.Close and consult with Err (#844)

* Always defer *sql.Rows.Close and consult with Err

database/sql.Rows.Next() makes sure to call Close only after exhausting
result rows which would NOT happen when returning early from a bad Scan.
Close being idempotent makes it a great candidate to get always deferred
regardless of what happens later on the result set.

This change also makes sure call Err() after exhausting Next() and
propagate non-nil results from it as the documentation advises.

Closes #764

Signed-off-by: Kiril Vladimiroff <kiril@vladimiroff.org>

* Override named result parameters in last returns

Signed-off-by: Kiril Vladimiroff <kiril@vladimiroff.org>

* Do the same over new changes that got merged

Signed-off-by: Kiril Vladimiroff <kiril@vladimiroff.org>

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>

* Clean up

Co-authored-by: Serra Allgood <serra@allgood.dev>
Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
Co-authored-by: Brendan Abolivier <github@brendanabolivier.com>
Co-authored-by: Abhishek Kumar <31231064+abhishekkumar2718@users.noreply.github.com>
Co-authored-by: Will Hunt <will@half-shot.uk>
Co-authored-by: S7evinK <tfaelligen@gmail.com>
Co-authored-by: Arshpreet <30545756+arsh-7@users.noreply.github.com>
Co-authored-by: Prateek Sachan <42961174+prateek2211@users.noreply.github.com>
Co-authored-by: Behouba Manassé <behouba@gmail.com>
Co-authored-by: aditsachde <23707194+aditsachde@users.noreply.github.com>
Co-authored-by: Kiril Vladimiroff <kiril@vladimiroff.org>
2020-02-11 15:46:51 +00:00
Neil Alexander
37d117f2b7
Wire up publicroomsapi for roomserver events (#851)
* Wire up publicroomsapi to roomserver events

* Remove parameter that was incorrectly brought over from p2p work

* nolint containsBackwardExtremity for now
2020-01-24 17:11:20 +00:00
Neil Alexander
dece31f41e
Some fixes for #847 (#850)
* Fix a couple of cases where backfilling events we already had causes panics, hopefully fix ordering of events, update GMSL dependency for backfill URL fixes

* Remove commented out lines from output_room_events_table schema
2020-01-24 11:40:27 +00:00
Neil Alexander
49f760a30b
CS API: Support for /messages, fixes for /sync (#847)
* Merge forward

* Tidy up a bit

* TODO: What to do with NextBatch here?

* Replace SyncPosition with PaginationToken throughout syncapi

* Fix PaginationTokens

* Fix lint errors

* Add a couple of missing functions into the syncapi external storage interface

* Some updates based on review comments from @babolivier

* Some updates based on review comments from @babolivier

* argh whitespacing

* Fix opentracing span

* Remove dead code

* Don't overshadow err (fix lint issue)

* Handle extremities after inserting event into topology

* Try insert event topology as ON CONFLICT DO NOTHING

* Prevent OOB error in addRoomDeltaToResponse

* Thwarted by gocyclo again

* Fix NewPaginationTokenFromString, define unit test for it

* Update pagination token test

* Update sytest-whitelist

* Hopefully fix some of the sync batch tokens

* Remove extraneous sync position func

* Revert to topology tokens in addRoomDeltaToResponse etc

* Fix typo

* Remove prevPDUPos as dead now that backwardTopologyPos is used instead

* Fix selectEventsWithEventIDsSQL

* Update sytest-blacklist

* Update sytest-whitelist
2020-01-23 17:51:10 +00:00
Neil Alexander
3bd023e74d
Federation fixes (#845)
* Update gomatrixserverlib to p2p commit 92c0338, other tweaks

* Update gomatrixserverlib to p2p commit e5dcc65

* Rewrite getAuthChain

* Update gomatrixserverlib in go.mod/go.sum

* Correct a couple of package refs for updated gmsl/gomatrix

* Update gomatrixserverlib ref in go.mod/go.sum

* Update getAuthChain comments following @babolivier review
2020-01-10 12:11:44 +00:00
Neil Alexander
c28577ea25
Implement storage interfaces (#841)
* Implement interfaces for federationsender storage

* Implement interfaces for mediaapi storage

* Implement interfaces for publicroomsapi storage

* Implement interfaces for roomserver storage

* Implement interfaces for syncapi storage

* Implement interfaces for keydb storage

* common.PartitionStorer in publicroomsapi interface

* Update copyright notices
2020-01-03 14:07:05 +00:00
Thibaut CHARLES
76e4ebaf78 State events filtering database api (#438)
This PR adds a gomatrixserverlib.Filter parameter to functions handling the syncapi_current_room_state table. It does not implement any filtering logic inside the syncapi IncrementalSync/CompleteSync functions, just the APIs for future use.

Default filters are provided as placeholders in IncrementalSync/CompleteSync, so behaviour should be unchanged (except the default 20 event limit)

SQL table will be changed. You can upgrade an existing database using:

```
ALTER TABLE syncapi_current_room_state  ADD COLUMN IF NOT EXISTS sender text;
UPDATE syncapi_current_room_state SET sender=(event_json::json->>'sender');
ALTER TABLE syncapi_current_room_state ALTER COLUMN sender SET NOT NULL;
ALTER TABLE syncapi_current_room_state  ADD COLUMN IF NOT EXISTS contains_url bool;
UPDATE syncapi_current_room_state SET contains_url=(event_json::json->>'content')::json->>'url' IS NOT NULL;
ALTER TABLE syncapi_current_room_state ALTER COLUMN contains_url SET NOT NULL;
```

Note: This depends on #436 (and includes all its commits). I'm not sure if Github will remove the duplicated commits once #436 is merged.
2019-08-07 11:12:09 +01:00
Alex Chen
29841bed6b
Add typing notifications to /sync responses - fixes #635 (#718)
This PR adds a new consumer for typing notifications in syncapi. It also brings changes to syncserver.go and some related files so EDUs can better fit in /sync responses.

Fixes #635.
Fixes #574.
2019-07-12 22:59:53 +08:00
Andrew Morgan
33a1392541
Encode URLs properly (#728)
We were escaping the URL before performing any pattern matching on it.
This meant that if you sent data that URLdecoded to a "/", it would count as
a "/" in the URL, potentially causing a 404. This was causing some flaky tests
with some randomly-generated query parameters.

Now, we keep URLs encoded while doing the pattern matching, and only afterwards
do we URL decode each query parameter individually before passing them to their
respective handler functions.

github.com/gorilla/mux was also updated to v1.7.3 to fix a bug with URL encoding and subrouters.
2019-07-03 16:38:50 +01:00
ruben
74827428bd use go module for dependencies (#594) 2019-05-21 21:56:55 +01:00