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use background context w/deadline

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This commit is contained in:
tsmethurst 2022-01-24 18:12:04 +01:00
parent 8e6ba1de52
commit c12520167d
1 changed files with 24 additions and 9 deletions
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33
internal/federation/dereferencing/account.go
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@ -27,6 +27,7 @@
"net/url"
"strings"
"sync"
"time"
"github.com/sirupsen/logrus"
"github.com/superseriousbusiness/activity/streams"
@ -54,7 +55,7 @@ func instanceAccount(account *gtsmodel.Account) bool {
// the remote instance again.
//
// SIDE EFFECTS: remote account will be stored in the database, or updated if it already exists (and refresh is true).
func (d *deref) GetRemoteAccount(ctx context.Context, username string, remoteAccountID *url.URL, refresh bool, blocking bool) (*gtsmodel.Account, error) {
func (d *deref) GetRemoteAccount(ctx context.Context, username string, remoteAccountID *url.URL, blocking bool, refresh bool) (*gtsmodel.Account, error) {
new := true
// check if we already have the account in our db, and just return it unless we'd doing a refresh
@ -65,8 +66,16 @@ func (d *deref) GetRemoteAccount(ctx context.Context, username string, remoteAcc
// make sure the account fields are populated before returning:
// even if we're not doing a refresh, the caller might want to block
// until everything is loaded
err = d.populateAccountFields(ctx, remoteAccount, username, refresh, blocking)
return remoteAccount, err
if err := d.populateAccountFields(ctx, remoteAccount, username, refresh, blocking); err != nil {
return nil, fmt.Errorf("GetRemoteAccount: error populating remoteAccount fields: %s", err)
}
updatedAccount, err := d.db.UpdateAccount(ctx, remoteAccount)
if err != nil {
return nil, fmt.Errorf("GetRemoteAccount: error updating remoteAccount: %s", err)
}
return updatedAccount, err
}
}
@ -193,7 +202,7 @@ func (d *deref) dereferenceAccountable(ctx context.Context, username string, rem
// populateAccountFields populates any fields on the given account that weren't populated by the initial
// dereferencing. This includes things like header and avatar etc.
func (d *deref) populateAccountFields(ctx context.Context, account *gtsmodel.Account, requestingUsername string, refresh bool, blocking bool) error {
func (d *deref) populateAccountFields(ctx context.Context, account *gtsmodel.Account, requestingUsername string, blocking bool, refresh bool) error {
// if we're dealing with an instance account, just bail, we don't need to do anything
if instanceAccount(account) {
return nil
@ -230,7 +239,7 @@ func (d *deref) populateAccountFields(ctx context.Context, account *gtsmodel.Acc
//
// If blocking is true, then the calls to the media manager made by this function will be blocking:
// in other words, the function won't return until the header and the avatar have been fully processed.
func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsmodel.Account, t transport.Transport, refresh bool, blocking bool) error {
func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsmodel.Account, t transport.Transport, blocking bool, refresh bool) error {
accountURI, err := url.Parse(targetAccount.URI)
if err != nil {
return fmt.Errorf("fetchRemoteAccountMedia: couldn't parse account URI %s: %s", targetAccount.URI, err)
@ -270,7 +279,6 @@ func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsm
if err != nil {
return err
}
targetAccount.AvatarMediaAttachmentID = newProcessing.AttachmentID()
// store it in our map to indicate it's in process
d.dereferencingAvatarsLock.Lock()
@ -288,11 +296,15 @@ func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsm
} else {
// ...otherwise do it async
go func() {
if err := lockAndLoad(ctx, d.dereferencingAvatarsLock, processingMedia, d.dereferencingAvatars, targetAccount.ID); err != nil {
dlCtx, done := context.WithDeadline(context.Background(), time.Now().Add(1*time.Minute))
if err := lockAndLoad(dlCtx, d.dereferencingAvatarsLock, processingMedia, d.dereferencingAvatars, targetAccount.ID); err != nil {
logrus.Errorf("fetchRemoteAccountMedia: error during async lock and load of avatar: %s", err)
}
done()
}()
}
targetAccount.AvatarMediaAttachmentID = processingMedia.AttachmentID()
}
if targetAccount.HeaderRemoteURL != "" && (targetAccount.HeaderMediaAttachmentID == "" || refresh) {
@ -325,7 +337,6 @@ func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsm
if err != nil {
return err
}
targetAccount.HeaderMediaAttachmentID = newProcessing.AttachmentID()
// store it in our map to indicate it's in process
d.dereferencingHeadersLock.Lock()
@ -343,11 +354,15 @@ func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsm
} else {
// ...otherwise do it async
go func() {
if err := lockAndLoad(ctx, d.dereferencingHeadersLock, processingMedia, d.dereferencingHeaders, targetAccount.ID); err != nil {
dlCtx, done := context.WithDeadline(context.Background(), time.Now().Add(1*time.Minute))
if err := lockAndLoad(dlCtx, d.dereferencingHeadersLock, processingMedia, d.dereferencingHeaders, targetAccount.ID); err != nil {
logrus.Errorf("fetchRemoteAccountMedia: error during async lock and load of header: %s", err)
}
done()
}()
}
targetAccount.HeaderMediaAttachmentID = processingMedia.AttachmentID()
}
return nil