Imports github.com/getlantern/golog github.com/getlantern/bufconn github.com/getlantern/netx github.com/getlantern/ops github.com/pkg/errors github.com/xtaci/smux golang.org/x/sync/semaphore Standard library imports bytes context crypto/rand crypto/sha1 crypto/tls encoding/base64 errors fmt net net/http net/url strings sync sync/atomic time