| Commit message (Collapse) | Author | Age | Files | Lines |
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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.
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Optionally allow ActionCable requests from the same host as origin
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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.
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The current code base is not uniform. After some discussion,
we have chosen to go with double quotes by default.
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[ci skip]
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ActionCable protocol negotiation
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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.
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* 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.
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Support faye-websocket + EventMachine as an option
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ActionCable: Add a "welcome" and "ping" message type
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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.
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Improve Action Cable reconnection reliability
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This PR checks all active Action Cable documentation for typos and other
fixes. It aims to make sure that when Rails 5 is released, that the
Action Cable docs are up to snuff with the other documentation included
with Rails.
[ci skip]
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(as adapted to use concurrent-ruby / nio4r instead of eventmachine)
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- adapter -> pubsub (re)rename internally
- Change variable names to match method names
- Add EventMachine `~> 1.0` as a runtime dependency of ActionCable
- Refactor dependency loading for adapters
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This reverts commit d0393fccffc118a5de37654aa222774b66123393, reversing
changes made to 3b7ccadfc1c8dfec61af898167e1300b17f5cf25.
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This removes 8 runtime gem dependencies from Rails:
```
Using hitimes 1.2.3
Using timers 4.1.1
Using celluloid-essentials 0.20.5
Using celluloid-extras 0.20.5
Using celluloid-fsm 0.20.5
Using celluloid-pool 0.20.5
Using celluloid-supervision 0.20.5
Using celluloid 0.17.2
```
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Warnings coming from code and test are removed
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