Commit Graph

151 Commits

Author SHA1 Message Date
Antoine Leblanc
5b54f9d766
server: add support for webhook connection expiration (#4196)
* add expiry time to webhook user info

This also adds an optional message to webhook errors: if we fail to
parse an expiry time, we will log a warning with the parse error.

* refactored Auth

This change had one main goal: put in common all expiry time
extraction code between the JWT and WebHook parts of the
code. Furthermore, this change also moves all WebHook specific code to
its own module, similarly to what is done for JWT.

* Remove dependency on string-conversions in favor of text-conversions

string-conversions silently uses UTF8 instead of being explicit about
it, and it uses lenientDecode when decoding ByteStrings when it’s
usually better to reject invalid UTF8 input outright. text-conversions
solves both those problems.

Co-authored-by: Alexis King <lexi.lambda@gmail.com>
2020-04-02 19:00:13 -05:00
Rakesh Emmadi
f80b69e931
few actions' fixes and improvements (fix #3977, #4061 & close #4021) (#4109)
* add 'ID' to default scalars for custom types, fix #4061

* preserve cookie headers from sync action webhook, close #4021

* validate action webhook response to conform to output type, fix #3977

* fix tests, don't run actions' tests on PG version < 10

* update CHANGELOG.md

* no-op refactor, use types from http-network more

Co-authored-by: Vamshi Surabhi <0x777@users.noreply.github.com>
2020-03-20 12:16:45 +05:30
Brandon Simmons
4d2dbe68fa
Use AssertNF for leak prophylaxis when doing mutable writes. Closes #3937 (#4097)
Writing to a mutable var is a particularly potent source of leaks since
it mostly defeats GHC's analysis. Here we add assertions to all mutable
writes, and fix a couple spots where we wrote some thunks to a mutable
var (compiled with -O2).

Some of these thunks were probably benign, but others looked liked they
might be retaining big args. Didn't do much analysis, just fixed.

Actually pretty happy with how easy this was to use and as a diagnostic,
once I sorted out some issues. We should consider using it elsewhere,
and maybe extending so that we can use it with tests, enable when
`-fenable-assertsions` etc.

Relates #3388

Also simplified codepaths that use `AcceptWith`, which has unnecessary
`Maybe` fields.
2020-03-17 20:31:22 -05:00
Vamshi Surabhi
c52bfc540d
More robust forking, exception safety. Closes #3768 (#3860)
This is the result of a general audit of how we fork threads, with a
detour into how we're using mutable state especially in websocket
codepaths, making more robust to async exceptions and exceptions
resulting from bugs.

Some highlights:
- use a wrapper around 'immortal' so threads that die due to bugs are
  restarted, and log the error
- use 'withAsync' some places
- use bracket a few places where we might break invariants
- log some codepaths that represent bugs
- export UnstructuredLog for ad hoc logging (the alternative is we
  continue not logging useful stuff)

I had to timebox this. There are a few TODOs I didn't want to address.
And we'll wait until this is merged to attempt #3705 for
Control.Concurrent.Extended
2020-03-05 23:29:26 +05:30
Vamshi Surabhi
b84db36ebb
allow custom mutations through actions (#3042)
* basic doc for actions

* custom_types, sync and async actions

* switch to graphql-parser-hs on github

* update docs

* metadata import/export

* webhook calls are now supported

* relationships in sync actions

* initialise.sql is now in sync with the migration file

* fix metadata tests

* allow specifying arguments of actions

* fix blacklist check on check_build_worthiness job

* track custom_types and actions related tables

* handlers are now triggered on async actions

* default to pgjson unless a field is involved in relationships, for generating definition list

* use 'true' for action filter for non admin role

* fix create_action_permission sql query

* drop permissions when dropping an action

* add a hdb_role view (and relationships) to fetch all roles in the system

* rename 'webhook' key in action definition to 'handler'

* allow templating actions wehook URLs with env vars

* add 'update_action' /v1/query type

* allow forwarding client headers by setting `forward_client_headers` in action definition

* add 'headers' configuration in action definition

* handle webhook error response based on status codes

* support array relationships for custom types

* implement single row mutation, see https://github.com/hasura/graphql-engine/issues/3731

* single row mutation: rename 'pk_columns' -> 'columns' and no-op refactor

* use top level primary key inputs for delete_by_pk & account select permissions for single row mutations

* use only REST semantics to resolve the webhook response

* use 'pk_columns' instead of 'columns' for update_by_pk input

* add python basic tests for single row mutations

* add action context (name) in webhook payload

* Async action response is accessible for non admin roles only if
  the request session vars equals to action's

* clean nulls, empty arrays for actions, custom types in export metadata

* async action mutation returns only the UUID of the action

* unit tests for URL template parser

* Basic sync actions python tests

* fix output in async query & add async tests

* add admin secret header in async actions python test

* document async action architecture in Resolve/Action.hs file

* support actions returning array of objects

* tests for list type response actions

* update docs with actions and custom types metadata API reference

* update actions python tests as per #f8e1330

Co-authored-by: Tirumarai Selvan <tirumarai.selvan@gmail.com>
Co-authored-by: Aravind Shankar <face11301@gmail.com>
Co-authored-by: Rakesh Emmadi <12475069+rakeshkky@users.noreply.github.com>
2020-02-13 23:08:23 +05:30
Brandon Simmons
58ef316118 Add request timings and count histograms to telemetry. Closes #3552
We upload a set of accumulating timers and counters to track service
time for different types of operations, across several dimensions (e.g.
did we hit the plan cache, was a remote involved, etc.)

Also...

Standardize on DiffTime as a standard duration type, and try to use it
consistently.

See discussion here:
https://github.com/hasura/graphql-engine/pull/3584#pullrequestreview-340679369

It should be possible to overwrite that module so the new threadDelay
sticks per the pattern in #3705 blocked on #3558

Rename the Control.Concurrent.Extended.threadDelay to `sleep` since a
naive use with a literal argument would be very bad!

We catch a bug in 'computeTimeDiff'.

Add convenient 'Read' instances to the time unit utility types. Make
'Second' a newtype to support this.
2020-02-03 18:50:10 -06:00
Alexis King
5bd5a548fa
server: Parameterize the graphql-engine library over the version (#3668) 2020-01-22 15:55:55 -06:00
Alexis King
27997107ab Add caching for recreating event trigger functions 2020-01-08 16:45:46 -06:00
Alexis King
1387722970 Refactor schema cache construction to avoid imperative updates
wip: fix error codes in remote schema tests
2020-01-08 16:43:06 -06:00
Toan Nguyen
2aba7edf81 add query execution time and response size to ws-server logs in websocket transport (#3584) 2020-01-07 14:25:32 -06:00
Phil Freeman
9e2c8b420b Report errors in parallel when batching (#3605)
* Report errors in parallel when batching
* Add some more test cases
2019-12-30 17:18:20 -06:00
Phil Freeman
c766881125 Support batched queries (fix #1812) (#3490) 2019-12-20 10:04:02 -06:00
Anon Ray
b81d22f583 fix resolving user info in websocket transport (#3509)
The connection handler in websocket transport was not using the
  'UserAuthentication' interface to resolve user info. Fix resolving
  user info in websocket transport to use the common
  'UserAuthentication' interface
2019-12-10 19:04:49 -06:00
Anon Ray
490b639981 refactor some internal components (#3414) 2019-11-26 17:44:21 +05:30
Vamshi Surabhi
6abe8d7927 allow specifying an upper limit on the query plan cache size (#3012) 2019-11-25 11:12:23 -06:00
Tirumarai Selvan
d2b2a58c0e add read_only to run_sql metadata api (#3191) 2019-11-14 18:20:18 -06:00
Alexis King
264d70644b Multiplex all subscriptions, grouping them by their resolved SQL query 2019-09-16 22:00:46 -05:00
José Lorenzo Rodríguez
5609fba393 Implemented graceful shutdown for websockets (#2827) 2019-09-09 15:26:04 -05:00
Anon Ray
b4a0a03631 log when request body parsing fails (fix #2555) (#2556) 2019-08-01 16:21:59 +05:30
Anon Ray
8f1e7dbc8d breaking: server logging changes (close #507, close #2171) (#1835) 2019-07-11 05:37:06 +00:00
Anon Ray
278f26b073 forward set-cookie headers from remote servers (fix #1654) (#2305) 2019-06-04 15:40:28 +05:30
Anon Ray
95a27fba89 fix response for remote schema queries over ws (fix #2246) (#2248) 2019-05-29 17:21:09 +05:30
Rakesh Emmadi
0b210cc245 support allow-list for graphql queries (closes #989) (#2075) 2019-05-16 11:43:25 +05:30
Rakesh Emmadi
c6f40df6d5 close websocket connection on JWT expiry (fix #578) (#2156) 2019-05-14 11:54:46 +05:30
Anon Ray
a21f6cd648 introduce v1/graphql (fix #1368) (#2064)
Changes compared to `/v1alpha1/graphql`

* Changed all graphql responses in **/v1/graphql** endpoint to be 200. All graphql clients expect responses to be HTTP 200. Non-200 responses are considered transport layer errors. 

* Errors in http and websocket layer are now consistent and have similar structure.
2019-05-10 11:35:10 +05:30
Vamshi Surabhi
ce243f5899
multiplexed subscriptions (#1934)
* add types to represent unparsed http gql requests

This will help when we add caching of frequently used ASTs

* query plan caching

* move livequery to execute

* add multiplexed module

* session variable can be customised depending on the context

Previously the value was always "current_setting('hasura.user')"

* get rid of typemap requirement in reusable plan

* subscriptions are multiplexed when possible

* use lazytx for introspection to avoid acquiring a pg connection

* refactor to make execute a completely decoupled module

* don't issue a transaction for a query

* don't use current setting for explained sql

* move postgres related types to a different module

* validate variableValues on postgres before multiplexing subs

* don't user current_setting for queries over ws

* plan_cache is only visible when developer flag is enabled

* introduce 'batch size' when multiplexing subscriptions

* bump stackage to 13.16

* fix schema_stitching test case error code

* store hashes instead of actual responses for subscriptions

* internal api to dump subscriptions state

* remove PlanCache from SchemaCacheRef

* allow live query options to be configured on server startup

* capture metrics for multiplexed subscriptions

* more metrics captured for multiplexed subs

* switch to tvar based hashmap for faster snapshotting

* livequery modules do not expose internal details

* fix typo in live query env vars

* switch to hasura's pg-client-hs
2019-04-17 15:18:41 +05:30
Vamshi Surabhi
ada35c2236 add user information to transactions in ws protocol (fix #1867) (#1869)
This bug introduced with the refactor in 739ff80a51.
2019-03-26 16:38:27 +05:30
Vamshi Surabhi
739ff80a51 refactor graphql query execution logic (#1855) 2019-03-25 23:55:25 +05:30
Vamshi Surabhi
24dcefb142
use bytestring builder to represent encoded json (#1800) 2019-03-18 21:52:21 +05:30
Anon Ray
961f1af528 send error not connection_error on query validation errors (fix #1790) (#1792) 2019-03-17 17:30:54 +05:30
Vamshi Surabhi
c7346fd55a bump stackage to lts 13 and refer to hasura's pg-client-hs (#1747) 2019-03-14 20:25:33 +05:30
Anon Ray
d9882fcb03 fix remote queries/mutations to work over websocket (fix #1619) (#1621) 2019-03-05 16:39:02 +05:30
Anon Ray
02d80c9ac6 read cookie while initialising websocket connection (fix #1660) (#1668)
* read cookie while initialising websocket connection (fix #1660)

* add tests for cookie on websocket init

* fix logic for tests

* enforce cors, and flag to force read cookie when cors disabled

  - as browsers don't enforce SOP on websockets, we enforce CORS policy
  on websocket handshake
  - if CORS is disabled, by default cookie is not read (because XSS
  risk!). Add special flag to force override this behaviour

* add log and forward origin header to webhook

  - add log notice when cors is disabled, and cookie is not read on
  websocket handshake
  - forward origin header to webhook in POST mode. So that when CORS is
  disabled, webhook can also enforce CORS independently.

* add docs, and forward all client headers to webhook
2019-03-04 13:16:53 +05:30
Rakesh Emmadi
377290a058 breaking: correct (de)serialisation of postgres numeric types in json (fix #1523) (#1662) 2019-03-01 17:15:04 +05:30
Shahidh K Muhammed
097bfb6bfa revert "forward response headers from remote servers (#1664)"
This reverts commit c19fe35f4e.
2019-02-28 17:20:56 +05:30
Anon Ray
c19fe35f4e forward response headers from remote servers (fix #1654) (#1664) 2019-02-28 17:15:07 +05:30
Vamshi Surabhi
ec8b2c80b5
refactor to remove warnings especially with orphan instances (#1163)
* remove phase one/two distinction and hdbquery typeclass

* move extensions to default-extensions

* switch to LazyTx which only acquires a connection if needed

* move defns from TH module into Ops module

* remove tojson orphan instance for http exception

* remove orphan instance for dmlp1

* getTopLevelNodes will not throw any exceptions
2018-12-13 12:56:15 +05:30
Anon Ray
77cbf12bb7 merge types with same structure in remote schema (closes #1112, #1135) (#1145) 2018-12-12 17:31:18 +05:30
Rakesh Emmadi
29ba490296 conform to graphql subscription and error spec (close #1056, close #1059) (#1126) 2018-12-04 19:07:38 +05:30
Anon Ray
512ee6fb9f adds basic support for remote schemas/schema stitching (#952) 2018-11-23 18:32:46 +05:30
Vamshi Surabhi
8b0082eac1
clean up user variables parsing logic and fix explain api (#869) 2018-10-26 21:27:22 +05:30
Vamshi Surabhi
199531cbd9
http and websocket logs now correctly have user information, closes #849 (#850) 2018-10-25 15:07:57 +05:30
Vamshi Surabhi
67168b3632 send 'completed' after an error when handling start in ws (close #671) (#776) 2018-10-16 17:19:24 +05:30
Vamshi Surabhi
603461ad8f track connection_init error on each ws connection (close #682) (#683) 2018-10-09 15:51:05 +05:30
Vamshi Surabhi
67ee3fc0f2 on a conn_init error send connection_err message instead of closing the ws conn (fix #537) (#572) 2018-09-29 13:21:49 +05:30
Anon Ray
75090d51b9 jwt config now takes a jwk url (close #465) (#527)
JWT config now takes an optional jwk_url parameter (which points to published JWK Set). This is useful for providers who rotate their JWK Set.

Optional jwk_url parameter is taken. The published JWK set under that URL should be in standard JWK format (tools.ietf.org/html/rfc7517#section-4.8).

If the response contains an Expires header, the JWK set is automatically refreshed.
2018-09-27 16:52:49 +05:30
Vamshi Surabhi
85df9ac1e8 payload is now optional in connection_init message (close #470) (#471) 2018-09-18 13:13:30 +05:30
Rakesh Emmadi
a0574307c3 set header variables in subscription transaction, fix #297 (#299) 2018-08-22 13:53:53 +05:30
Vamshi Surabhi
c901767cd1
update packages (#251)
* move to stackage 12.4

* upgrade pg-client

* docker build improvements
2018-08-08 13:10:13 +05:30
Rakesh Emmadi
8ef2692eb7 improve logs on webhook errors (closes #238, #242) (#243)
* logging for webhook IO exceptions, fix log request for errors, fix #238

* log status code and response in case of any error for webhook
2018-08-03 14:13:35 +05:30
Vamshi Surabhi
e3f960da96 initial support for livequeries (#176)
fix #59
2018-07-20 12:52:46 +05:30