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91 lines
3.8 KiB
Go
91 lines
3.8 KiB
Go
package pub
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import (
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"context"
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"net/http"
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"net/url"
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"github.com/superseriousbusiness/activity/streams/vocab"
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)
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// Common contains functions required for both the Social API and Federating
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// Protocol.
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//
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// It is passed to the library as a dependency injection from the client
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// application.
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type CommonBehavior interface {
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// AuthenticateGetInbox delegates the authentication of a GET to an
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// inbox.
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//
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// Always called, regardless whether the Federated Protocol or Social
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// API is enabled.
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//
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// If an error is returned, it is passed back to the caller of
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// GetInbox. In this case, the implementation must not write a
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// response to the ResponseWriter as is expected that the client will
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// do so when handling the error. The 'authenticated' is ignored.
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//
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// If no error is returned, but authentication or authorization fails,
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// then authenticated must be false and error nil. It is expected that
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// the implementation handles writing to the ResponseWriter in this
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// case.
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//
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// Finally, if the authentication and authorization succeeds, then
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// authenticated must be true and error nil. The request will continue
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// to be processed.
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AuthenticateGetInbox(c context.Context, w http.ResponseWriter, r *http.Request) (out context.Context, authenticated bool, err error)
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// AuthenticateGetOutbox delegates the authentication of a GET to an
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// outbox.
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//
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// Always called, regardless whether the Federated Protocol or Social
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// API is enabled.
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//
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// If an error is returned, it is passed back to the caller of
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// GetOutbox. In this case, the implementation must not write a
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// response to the ResponseWriter as is expected that the client will
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// do so when handling the error. The 'authenticated' is ignored.
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//
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// If no error is returned, but authentication or authorization fails,
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// then authenticated must be false and error nil. It is expected that
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// the implementation handles writing to the ResponseWriter in this
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// case.
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//
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// Finally, if the authentication and authorization succeeds, then
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// authenticated must be true and error nil. The request will continue
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// to be processed.
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AuthenticateGetOutbox(c context.Context, w http.ResponseWriter, r *http.Request) (out context.Context, authenticated bool, err error)
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// GetOutbox returns the OrderedCollection inbox of the actor for this
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// context. It is up to the implementation to provide the correct
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// collection for the kind of authorization given in the request.
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//
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// AuthenticateGetOutbox will be called prior to this.
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//
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// Always called, regardless whether the Federated Protocol or Social
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// API is enabled.
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GetOutbox(c context.Context, r *http.Request) (vocab.ActivityStreamsOrderedCollectionPage, error)
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// NewTransport returns a new Transport on behalf of a specific actor.
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//
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// The actorBoxIRI will be either the inbox or outbox of an actor who is
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// attempting to do the dereferencing or delivery. Any authentication
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// scheme applied on the request must be based on this actor. The
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// request must contain some sort of credential of the user, such as a
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// HTTP Signature.
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//
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// The gofedAgent passed in should be used by the Transport
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// implementation in the User-Agent, as well as the application-specific
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// user agent string. The gofedAgent will indicate this library's use as
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// well as the library's version number.
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//
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// Any server-wide rate-limiting that needs to occur should happen in a
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// Transport implementation. This factory function allows this to be
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// created, so peer servers are not DOS'd.
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//
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// Any retry logic should also be handled by the Transport
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// implementation.
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//
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// Note that the library will not maintain a long-lived pointer to the
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// returned Transport so that any private credentials are able to be
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// garbage collected.
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NewTransport(c context.Context, actorBoxIRI *url.URL, gofedAgent string) (t Transport, err error)
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}
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