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rework media processing a little bit (#191)

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* rework media processing a little bit

* review changes
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tobi 2021-09-04 14:02:01 +02:00 • committed by GitHub
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13 changed files with 486 additions and 166 deletions
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30
internal/federation/dereferencing/dereferencer.go
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@ -43,8 +43,34 @@ type Dereferencer interface {
GetRemoteInstance(ctx context.Context, username string, remoteInstanceURI *url.URL) (*gtsmodel.Instance, error)
GetRemoteAttachment(ctx context.Context, username string, remoteAttachmentURI *url.URL, ownerAccountID string, statusID string, expectedContentType string) (*gtsmodel.MediaAttachment, error)
RefreshAttachment(ctx context.Context, requestingUsername string, remoteAttachmentURI *url.URL, ownerAccountID string, expectedContentType string) (*gtsmodel.MediaAttachment, error)
// GetRemoteAttachment takes a minimal attachment struct and converts it into a fully fleshed out attachment, stored in the database and instance storage.
//
// The parameter minAttachment must have at least the following fields defined:
// * minAttachment.RemoteURL
// * minAttachment.AccountID
// * minAttachment.File.ContentType
//
// The returned attachment will have an ID generated for it, so no need to generate one beforehand.
// A blurhash will also be generated for the attachment.
//
// Most other fields will be preserved on the passed attachment, including:
// * minAttachment.StatusID
// * minAttachment.CreatedAt
// * minAttachment.UpdatedAt
// * minAttachment.FileMeta
// * minAttachment.AccountID
// * minAttachment.Description
// * minAttachment.ScheduledStatusID
// * minAttachment.Thumbnail.RemoteURL
// * minAttachment.Avatar
// * minAttachment.Header
//
// GetRemoteAttachment will return early if an attachment with the same value as minAttachment.RemoteURL
// is found in the database -- then that attachment will be returned and nothing else will be changed or stored.
GetRemoteAttachment(ctx context.Context, requestingUsername string, minAttachment *gtsmodel.MediaAttachment) (*gtsmodel.MediaAttachment, error)
// RefreshAttachment is like GetRemoteAttachment, but the attachment will always be dereferenced again,
// whether or not it was already stored in the database.
RefreshAttachment(ctx context.Context, requestingUsername string, minAttachment *gtsmodel.MediaAttachment) (*gtsmodel.MediaAttachment, error)
DereferenceAnnounce(ctx context.Context, announce *gtsmodel.Status, requestingUsername string) error
DereferenceThread(ctx context.Context, username string, statusIRI *url.URL) error