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[feature/performance] Fail fast when doing remote transport calls inside incoming request contexts (#1119)

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* [feature/performance] Fail fast when doing remote transport calls inside incoming request contexts

* [chore] Reduce outgoing request timeout to 15s

* log error messages when fastfailing

* use context.Value() instead of wrapped context, wrap error with fastfail instead of extra log entry

* add fast-fail context key test

Signed-off-by: kim <grufwub@gmail.com>
Co-authored-by: kim <grufwub@gmail.com>
This commit is contained in:
tobi 2022-11-23 22:40:07 +01:00 • committed by GitHub
commit c9d893fec1
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17 changed files with 141 additions and 24 deletions
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2
internal/federation/authenticate.go
View file

@ -216,7 +216,7 @@ func (f *federator) AuthenticateFederatedRequest(ctx context.Context, requestedU
}
log.Tracef("proceeding with dereference for uncached public key %s", requestingPublicKeyID)
trans, err := f.transportController.NewTransportForUsername(ctx, requestedUsername)
trans, err := f.transportController.NewTransportForUsername(transport.WithFastfail(ctx), requestedUsername)
if err != nil {
errWithCode := gtserror.NewErrorInternalError(fmt.Errorf("error creating transport for %s: %s", requestedUsername, err))
log.Debug(errWithCode)

5
internal/federation/dereferencing/account.go
View file

@ -87,6 +87,11 @@ type GetRemoteAccountParams struct {
//
// If a local account is passed into this function for whatever reason (hey, it happens!), then it
// will be returned from the database without making any remote calls.
//
// Even if a fastfail context is used, and something goes wrong, an account might still be returned instead
// of an error, if we already had the account in our database (in other words, if we just needed to try
// fingering/refreshing the account again). The rationale for this is that it's more useful to be able
// to provide *something* to the caller, even if that something is not necessarily 100% up to date.
func (d *deref) GetRemoteAccount(ctx context.Context, params GetRemoteAccountParams) (foundAccount *gtsmodel.Account, err error) {
/*
In this function we want to retrieve a gtsmodel representation of a remote account, with its proper

5
internal/federation/federatingprotocol.go
View file

@ -34,6 +34,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/federation/dereferencing"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/transport"
"github.com/superseriousbusiness/gotosocial/internal/uris"
"github.com/superseriousbusiness/gotosocial/internal/util"
)
@ -191,7 +192,7 @@ func (f *federator) AuthenticatePostInbox(ctx context.Context, w http.ResponseWr
}
// we don't have an entry for this instance yet so dereference it
i, err = f.GetRemoteInstance(ctx, username, &url.URL{
i, err = f.GetRemoteInstance(transport.WithFastfail(ctx), username, &url.URL{
Scheme: publicKeyOwnerURI.Scheme,
Host: publicKeyOwnerURI.Host,
})
@ -205,7 +206,7 @@ func (f *federator) AuthenticatePostInbox(ctx context.Context, w http.ResponseWr
}
}
requestingAccount, err := f.GetRemoteAccount(ctx, dereferencing.GetRemoteAccountParams{
requestingAccount, err := f.GetRemoteAccount(transport.WithFastfail(ctx), dereferencing.GetRemoteAccountParams{
RequestingUsername: username,
RemoteAccountID: publicKeyOwnerURI,
})