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* Enable `Style/RedundantReturn` rubocop rule, and fixed a couple moreRyuta Kamizono2017-11-011-1/+1
| | | | Follow up of #31004.
* ActionCable: use find method when unsubscribingRichard Machielse2017-09-261-1/+1
| | | | | | | | | | If a frontend for some reason tries to unsubscribe from a non existing subscription, the following error is logged: Could not execute command from ({"command"=>"unsubscribe", "identifier"=>"{\"channel\":\"SomeChannel\"}"}) [NoMethodError - undefined method `unsubscribe_from_channel' for nil:NilClass] Instead, it will now properly log: Could not execute command from ({"command"=>"unsubscribe", "identifier"=>"{\"channel\":\"SomeChannel\"}"}) [RuntimeError - Unable to find subscription with identifier: {"channel":"SomeChannel"}]
* [ci skip] Prefer cookies.encrypted over signed (#30129)Claudio B2017-08-071-1/+1
| | | | | | | | | | | | | | | | In some examples and guides we are recommending to use code like: ```ruby verified_user = User.find_by(id: cookies.signed[:user_id]) ``` My suggestion is to use instead: ```ruby verified_user = User.find_by(id: cookies.encrypted[:user_id]) ``` which invites users to prefer the "newer" encrypted cookies over the "legacy" signed cookies.
* Use frozen string literal in actioncable/Kir Shatrov2017-07-2311-0/+22
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* Revert "Merge pull request #29540 from kirs/rubocop-frozen-string"Matthew Draper2017-07-0211-11/+0
| | | | | This reverts commit 3420a14590c0e6915d8b6c242887f74adb4120f9, reversing changes made to afb66a5a598ce4ac74ad84b125a5abf046dcf5aa.
* Enforce frozen string in RubocopKir Shatrov2017-07-0111-0/+11
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* nodoc AC::Connection::WebSocketT.J. Schuck2017-06-161-1/+1
| | | | | Users should never publicly be interacting with an instance of this. The instance that comes along with an `AC::Connection::Base` instance (the only thing a user should be working with) is [itself intended to be private](https://github.com/tjschuck/rails/blob/master/actioncable/lib/action_cable/connection/base.rb#L137-L140). [ci skip]
* Add option for class_attribute default (#29270)David Heinemeier Hansson2017-05-291-2/+1
| | | | | | | | | | | | * Allow a default value to be declared for class_attribute * Convert to using class_attribute default rather than explicit setter * Removed instance_accessor option by mistake * False is a valid default value * Documentation
* Log any errors originating from the socketedwardmp2017-04-161-1/+2
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* Document AC::Connection::Authorization#reject_unauthorized_connectionT.J. Schuck2017-03-221-5/+5
| | | | | | | This method is repeatedly used throughout the docs (in the [AC::Connection docs](https://github.com/rails/rails/blob/12b684985837bc8ee9ad15c174cf4e07ca82d7c4/actioncable/lib/action_cable/connection/base.rb#L28), the [AC README](https://github.com/rails/rails/blob/12b684985837bc8ee9ad15c174cf4e07ca82d7c4/actioncable/README.md#a-full-stack-example), the [AC Guides](https://github.com/rails/rails/blob/12b684985837bc8ee9ad15c174cf4e07ca82d7c4/guides/source/action_cable_overview.md#connection-setup)), but not actually documented itself and seemingly not supported for public use based on its current `private` status. This actually makes the method public and documents it. The actual behavior that’s documented here is implemented [here](https://github.com/rails/rails/blob/12b684985837bc8ee9ad15c174cf4e07ca82d7c4/actioncable/lib/action_cable/connection/base.rb#L213-L219), via [this rescuing of the UnauthorizedError](https://github.com/rails/rails/blob/3dd1de8ba4d5862b01e7f5dd3878b21fd98b443b/actioncable/lib/action_cable/connection/base.rb#L172). The method is [already tested here](https://github.com/rails/rails/blob/25473baf409185638073fe2f016f4b9dda284e50/actioncable/test/connection/authorization_test.rb#L17-L29).
* Fix missing bracket.Eugene2017-01-141-1/+1
| | | Fix missing left bracket in exception message.
* Reduce string objects by using \ instead of + or << for concatenating stringsAkira Matsuda2017-01-121-2/+2
| | | | (I personally prefer writing one string in one line no matter how long it is, though)
* Privatize unneededly protected methods in Action CableAkira Matsuda2016-12-242-9/+9
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* Describe what we are protectingAkira Matsuda2016-12-234-0/+8
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* ActionCable::Connection::Base doc code sample syntax errorMSP-Greg2016-12-061-4/+1
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* Permit same-origin connections by defaultMatthew Draper2016-10-111-2/+2
| | | | | | | | | | | | | | | | | WebSocket always defers the decision to the server, because it didn't have to deal with legacy compatibility... but the same-origin policy is still a reasonable default. Origin checks do not protect against a directly connecting attacker -- they can lie about their host, but can also lie about their origin. Origin checks protect against a connection from 3rd-party controlled script in a context where a victim browser's cookies will be passed along. And if an attacker has breached that protection, they've already compromised the HTTP session, so treating the WebSocket connection in the same way seems reasonable. In case this logic proves incorrect (or anyone just wants to be more paranoid), we retain a config option to disable it.
* Merge pull request #26568 from skateman/cable-sameorigin-as-hostMatthew Draper2016-10-111-0/+3
|\ | | | | | | Optionally allow ActionCable requests from the same host as origin
| * Optionally allow ActionCable requests from the same host as originDávid Halász2016-09-211-0/+3
| | | | | | | | | | | | | | When the `allow_same_origin_as_host` is set to `true`, the request forgery protection permits `HTTP_ORIGIN` values starting with the corresponding `proto://` prefix followed by `HTTP_HOST`. This way it is not required to specify the list of allowed URLs.
* | Close the IO from the read loop threadMatthew Draper2016-10-062-1/+1
| | | | | | | | | | | | | | | | IO#close and IO#read across threads don't get along so well: After T1 enters #read and releases the GVL, T2 can call #close on the IO, thereby both closing the fd and freeing the buffer while T1 is using them.
* | In-line the configuration points that only existed for Faye supportMatthew Draper2016-10-012-3/+3
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* | Remove Faye modeMatthew Draper2016-10-012-92/+0
| | | | | | | | No deprecation, because it was never documented.
* | Merge pull request #26547 from ↵Matthew Draper2016-10-011-1/+5
|\ \ | | | | | | | | | | | | | | | palkan/fix/actioncable-confirmation-race-condition Avoid race condition on subscription confirmation
| * | Add Channel#ensure_confirmation_sent; call #subscribe_to_channel after ↵palkan2016-09-221-2/+4
| | | | | | | | | | | | initializing
| * | [Fix #25381] Avoid race condition on subscription confirmationpalkan2016-09-201-1/+3
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* | | Buffer writes to the cable socketsMatthew Draper2016-09-282-11/+92
| |/ |/| | | | | | | Otherwise, they can sometimes block, leading to reduced system throughput.
* | [ci skip] Fix formatting in Action Cable Connection::Base module docsPrathamesh Sonpatki2016-09-071-1/+1
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* fixes remaining RuboCop issues [Vipul A M, Xavier Noria]Xavier Noria2016-09-011-1/+1
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* applies remaining conventions across the projectXavier Noria2016-08-061-3/+3
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* normalizes indentation and whitespace across the projectXavier Noria2016-08-061-1/+1
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* applies new string literal convention in actioncable/libXavier Noria2016-08-0610-41/+41
| | | | | The current code base is not uniform. After some discussion, we have chosen to go with double quotes by default.
* Merge pull request #25624 from tinco/actioncable_write_raceMatthew Draper2016-07-091-2/+7
|\ | | | | | | Fix race condition in websocket stream write
| * fix race condition in websocket stream writeTinco Andringa2016-07-011-0/+4
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* | close hijacked i/o socket after use (fixes #25613)Tinco Andringa2016-07-011-0/+1
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* Properly support reloading for Action Cable channelsMatthew Draper2016-06-021-3/+3
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* Pass over Action Cable docsJon Moss2016-05-211-1/+1
| | | | [ci skip]
* Fix typos in ActionCable Channel [ci skip]Tom Kadwill2016-04-181-1/+1
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* Merge pull request #24224 from danielrhodes/actioncable-websocket-protocolsJeremy Daer2016-04-054-7/+21
|\ | | | | | | ActionCable protocol negotiation
| * Added protocol negotiationDaniel Rhodes2016-04-054-7/+21
| | | | | | | | | | | | | | | | | | This is primarily for backwards compatibility for when or if the protocol is changed in future versions. If the server fails to respond with an acceptable protocol, the client disconnects and disables the monitor.
* | Cable message encodingJeremy Daer2016-03-314-38/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Introduce a connection coder responsible for encoding Cable messages as WebSocket messages, defaulting to `ActiveSupport::JSON` and duck- typing to any object responding to `#encode` and `#decode`. * Consolidate encoding responsibility to the connection. No longer explicitly JSON-encode from channels or other sources. Pass Cable messages as Hashes to `#transmit` and rely on it to encode. * Introduce stream encoders responsible for decoding pubsub messages. Preserve the currently raw encoding, but make it easy to use JSON. Same duck type as the connection encoder. * Revert recent data normalization/quoting (#23649) which treated `identifier` and `data` values as nested JSON objects rather than as opaque JSON-encoded strings. That dealt us an awkward hand where we'd decode JSON strings… or not, but always encode as JSON. Embedding JSON object values directly is preferably, no extra JSON encoding, but that should be a purposeful protocol version change rather than ambiguously, inadvertently supporting multiple message formats.
* | Cable: fix Faye periodic timer shutdown typoJeremy Daer2016-03-241-1/+1
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* | Gracefully handle disconnected clientsJeremy Daer2016-03-203-1/+4
|/ | | | | | | | We'll get `Errno::ECONNRESET` if the client forcibly disconnected. Just close the socket rather than raising the exception. Handle other errors in `ClientSocket#write`, too, mirroring the Faye error handling which swallows all `StandardError` on write.
* Merge pull request #23992 from matthewd/em-optionMatthew Draper2016-03-047-12/+107
|\ | | | | Support faye-websocket + EventMachine as an option
| * Support faye-websocket + EventMachine as an optionMatthew Draper2016-03-027-12/+107
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* | Accept JSON with no backslashes/escapingJon Moss2016-03-021-6/+19
| | | | | | | | | | | | | | Fixes #22675 Allow channel identifiers and also data with no backslahes/escaping to be accepted by the subscription storer.
* | Merge pull request #23976 from danielrhodes/enhancement/ac-ping-to-message-typeMatthew Draper2016-03-021-5/+5
|\ \ | |/ |/| | | ActionCable: Add a "welcome" and "ping" message type
| * Make ping into a message typeDaniel Rhodes2016-03-011-1/+1
| | | | | | | | | | | | | | | | This change makes ping into a message type, which makes the whole protocol a lot more consistent. Also fixes hacks on the client side to make this all work.
| * Added welcome message type and fix test hacksDaniel Rhodes2016-03-011-4/+4
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* | Use AS::Executor / AS::Reloader to support reloading in ActionCableMatthew Draper2016-03-021-2/+3
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* The async.callback call should live with the hijackMatthew Draper2016-02-261-4/+5
| | | | If we're deferring one, we should defer the other too.
* Only hijack Rack socket when first neededJon Moss2016-02-242-10/+9
| | | | Fixes #23471
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