97 lines
4.4 KiB
Go
97 lines
4.4 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package federation
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import (
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"net/http"
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"net/url"
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"github.com/go-fed/activity/pub"
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"github.com/sirupsen/logrus"
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"github.com/superseriousbusiness/gotosocial/internal/config"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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"github.com/superseriousbusiness/gotosocial/internal/federation/federatingdb"
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"github.com/superseriousbusiness/gotosocial/internal/transport"
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"github.com/superseriousbusiness/gotosocial/internal/typeutils"
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)
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// Federator wraps various interfaces and functions to manage activitypub federation from gotosocial
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type Federator interface {
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// FederatingActor returns the underlying pub.FederatingActor, which can be used to send activities, and serve actors at inboxes/outboxes.
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FederatingActor() pub.FederatingActor
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// FederatingDB returns the underlying FederatingDB interface.
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FederatingDB() federatingdb.DB
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// AuthenticateFederatedRequest can be used to check the authenticity of incoming http-signed requests for federating resources.
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// The given username will be used to create a transport for making outgoing requests. See the implementation for more detailed comments.
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AuthenticateFederatedRequest(username string, r *http.Request) (*url.URL, error)
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// FingerRemoteAccount performs a webfinger lookup for a remote account, using the .well-known path. It will return the ActivityPub URI for that
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// account, or an error if it doesn't exist or can't be retrieved.
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FingerRemoteAccount(requestingUsername string, targetUsername string, targetDomain string) (*url.URL, error)
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// DereferenceRemoteAccount can be used to get the representation of a remote account, based on the account ID (which is a URI).
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// The given username will be used to create a transport for making outgoing requests. See the implementation for more detailed comments.
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DereferenceRemoteAccount(username string, remoteAccountID *url.URL) (typeutils.Accountable, error)
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// DereferenceRemoteStatus can be used to get the representation of a remote status, based on its ID (which is a URI).
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// The given username will be used to create a transport for making outgoing requests. See the implementation for more detailed comments.
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DereferenceRemoteStatus(username string, remoteStatusID *url.URL) (typeutils.Statusable, error)
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// GetTransportForUser returns a new transport initialized with the key credentials belonging to the given username.
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// This can be used for making signed http requests.
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//
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// If username is an empty string, our instance user's credentials will be used instead.
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GetTransportForUser(username string) (transport.Transport, error)
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pub.CommonBehavior
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pub.FederatingProtocol
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}
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type federator struct {
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config *config.Config
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db db.DB
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federatingDB federatingdb.DB
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clock pub.Clock
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typeConverter typeutils.TypeConverter
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transportController transport.Controller
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actor pub.FederatingActor
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log *logrus.Logger
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}
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// NewFederator returns a new federator
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func NewFederator(db db.DB, federatingDB federatingdb.DB, transportController transport.Controller, config *config.Config, log *logrus.Logger, typeConverter typeutils.TypeConverter) Federator {
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clock := &Clock{}
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f := &federator{
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config: config,
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db: db,
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federatingDB: federatingDB,
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clock: &Clock{},
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typeConverter: typeConverter,
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transportController: transportController,
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log: log,
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}
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actor := newFederatingActor(f, f, federatingDB, clock)
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f.actor = actor
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return f
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}
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func (f *federator) FederatingActor() pub.FederatingActor {
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return f.actor
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}
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func (f *federator) FederatingDB() federatingdb.DB {
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return f.federatingDB
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}
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