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Remote instance dereferencing (#70)

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Remote instances are now dereferenced when they post to an inbox on a GtS instance.

    Dereferencing will be done first by checking the /api/v1/instance endpoint of an instance.
    If that doesn't work, /.well-known/nodeinfo will be checked.
    If that doesn't work, only a minimal representation of the instance will be stored.

A new field was added to the Instance database model. To create it:

alter table instances add column contact_account_username text;
This commit is contained in:
Tobi Smethurst
2021-06-27 16:52:18 +02:00
committed by GitHub
parent 869a6c111c
commit 87cf621e21
13 changed files with 750 additions and 303 deletions
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55
internal/federation/commonbehavior.go
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@@ -20,15 +20,10 @@ package federation
import (
"context"
"fmt"
"net/http"
"net/url"
"github.com/go-fed/activity/pub"
"github.com/go-fed/activity/streams"
"github.com/go-fed/activity/streams/vocab"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/util"
)
/*
@@ -101,53 +96,3 @@ func (f *federator) GetOutbox(ctx context.Context, r *http.Request) (vocab.Activ
// the CLIENT API, not through the federation API, so we just do nothing here.
return streams.NewActivityStreamsOrderedCollectionPage(), nil
}
// NewTransport returns a new Transport on behalf of a specific actor.
//
// The actorBoxIRI will be either the inbox or outbox of an actor who is
// attempting to do the dereferencing or delivery. Any authentication
// scheme applied on the request must be based on this actor. The
// request must contain some sort of credential of the user, such as a
// HTTP Signature.
//
// The gofedAgent passed in should be used by the Transport
// implementation in the User-Agent, as well as the application-specific
// user agent string. The gofedAgent will indicate this library's use as
// well as the library's version number.
//
// Any server-wide rate-limiting that needs to occur should happen in a
// Transport implementation. This factory function allows this to be
// created, so peer servers are not DOS'd.
//
// Any retry logic should also be handled by the Transport
// implementation.
//
// Note that the library will not maintain a long-lived pointer to the
// returned Transport so that any private credentials are able to be
// garbage collected.
func (f *federator) NewTransport(ctx context.Context, actorBoxIRI *url.URL, gofedAgent string) (pub.Transport, error) {
var username string
var err error
if util.IsInboxPath(actorBoxIRI) {
username, err = util.ParseInboxPath(actorBoxIRI)
if err != nil {
return nil, fmt.Errorf("couldn't parse path %s as an inbox: %s", actorBoxIRI.String(), err)
}
} else if util.IsOutboxPath(actorBoxIRI) {
username, err = util.ParseOutboxPath(actorBoxIRI)
if err != nil {
return nil, fmt.Errorf("couldn't parse path %s as an outbox: %s", actorBoxIRI.String(), err)
}
} else {
return nil, fmt.Errorf("id %s was neither an inbox path nor an outbox path", actorBoxIRI.String())
}
account := &gtsmodel.Account{}
if err := f.db.GetLocalAccountByUsername(username, account); err != nil {
return nil, fmt.Errorf("error getting account with username %s from the db: %s", username, err)
}
return f.transportController.NewTransport(account.PublicKeyURI, account.PrivateKey)
}