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cloudflare-native port of the tangled knot server
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import ( "context" "fmt" "time"
"github.com/bluesky-social/indigo/atproto/syntax" "github.com/redis/go-redis/v9" "tangled.org/core/appview/db")
const ( PreferredHandleByDid = "preferred_handle:did:%s" PreferredHandleByHandle = "preferred_handle:handle:%s" PreferredHandleTTL = 24 * time.Hour)
type Cache struct { *redis.Client}
func New(addr string) *Cache { rdb := redis.NewClient(&redis.Options{ Addr: addr, }) return &Cache{rdb}}
func LookupPreferredHandle(ctx context.Context, rdb *Cache, e db.Execer, did string) string { if rdb != nil { if h, err := rdb.Get(ctx, fmt.Sprintf(PreferredHandleByDid, did)).Result(); err == nil { return h } }
var handle string if h, err := db.GetPreferredHandle(e, did); err == nil { handle = string(h) }
if rdb != nil { pipe := rdb.Pipeline() pipe.Set(ctx, fmt.Sprintf(PreferredHandleByDid, did), handle, PreferredHandleTTL) if handle != "" { pipe.Set(ctx, fmt.Sprintf(PreferredHandleByHandle, handle), did, PreferredHandleTTL) } pipe.Exec(ctx) }
return handle}
func LookupDidByPreferredHandle(ctx context.Context, rdb *Cache, e db.Execer, handle syntax.Handle) string { handleStr := string(handle) if rdb != nil { if d, err := rdb.Get(ctx, fmt.Sprintf(PreferredHandleByHandle, handleStr)).Result(); err == nil { return d } }
var did string if d, err := db.GetDidByPreferredHandle(e, handle); err == nil { did = string(d) }
if rdb != nil { pipe := rdb.Pipeline() pipe.Set(ctx, fmt.Sprintf(PreferredHandleByHandle, handleStr), did, PreferredHandleTTL) if did != "" { pipe.Set(ctx, fmt.Sprintf(PreferredHandleByDid, did), handleStr, PreferredHandleTTL) } pipe.Exec(ctx) }
return did}