hunk.code_window: 		return nil, getTeamErr
   	}
   	teamIdsWithPermission := []string{}
   	teamIdsWithoutPermission := []string{}
   	for _, teamId := range teamIds {
   		if a.HasPermissionToTeam(userId, teamId, model.PERMISSION_VIEW_MEMBERS) {
   			teamIdsWithPermission = append(teamIdsWithPermission, teamId)
  
hunk.labels: keep keep keep keep replace keep keep keep
hunk.file_path: app/user.go
hunk.type: replace
file: // Copyright 2016 The Go Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style
  // license that can be found in the LICENSE file.
  
  // In Go 1.13, the ed25519 package was promoted to the standard library as
  // crypto/ed25519, and this package became a wrapper for the standard library one.
  //
  // +build !go1.13
  
  // Package ed25519 implements the Ed25519 signature algorithm. See
  // https://ed25519.cr.yp.to/.
  //
  // These functions are also compatible with the “Ed25519” function defined in
  // RFC 8032. However, unlike RFC 8032's formulation, this package's private key
  // representation includes a public key suffix to make multiple signing
  // operations with the same key more efficient. This package refers to the RFC
  // 8032 private key as the “seed”.
  package ed25519
  
  // This code is a port of the public domain, “ref10” implementation of ed25519
  // from SUPERCOP.
  
  import (
  	"bytes"
  	"crypto"
  	cryptorand "crypto/rand"
  	"crypto/sha512"
  	"errors"
  	"io"
  	"strconv"
  
  	"golang.org/x/crypto/ed25519/internal/edwards25519"
  )
  
  const (
  	// PublicKeySize is the size, in bytes, of public keys as used in this package.
  	PublicKeySize = 32
  	// PrivateKeySize is the size, in bytes, of private keys as used in this package.
  	PrivateKeySize = 64
  	// SignatureSize is the size, in bytes, of signatures generated and verified by this package.
  	SignatureSize = 64
  	// SeedSize is the size, in bytes, of private key seeds. These are the private key representations used by RFC 8032.
  	SeedSize = 32
  )
  
  // PublicKey is the type of Ed25519 public keys.
  type PublicKey []byte
  
  // PrivateKey is the type of Ed25519 private keys. It implements crypto.Signer.
  type PrivateKey []byte
  
  // Public returns the PublicKey corresponding to priv.
  func (priv PrivateKey) Public() crypto.PublicKey {
  	publicKey := make([]byte, PublicKeySize)
  	copy(publicKey, priv[32:])
  	return PublicKey(publicKey)
  }
  
  // Seed returns the private key seed corresponding to priv. It is provided for
  // interoperability with RFC 8032. RFC 8032's private keys correspond to seeds
  // in this package.
  func (priv PrivateKey) Seed() []byte {
  	seed := make([]byte, SeedSize)
  	copy(seed, priv[:32])
  	return seed
  }
  
  // Sign signs the given message with priv.
  // Ed25519 performs two passes over messages to be signed and therefore cannot
  // handle pre-hashed messages. Thus opts.HashFunc() must return zero to
  // indicate the message hasn't been hashed. This can be achieved by passing
  // crypto.Hash(0) as the value for opts.
  func (priv PrivateKey) Sign(rand io.Reader, message []byte, opts crypto.SignerOpts) (signature []byte, err error) {
  	if opts.HashFunc() != crypto.Hash(0) {
  		return nil, errors.New("ed25519: cannot sign hashed message")
  	}
  
  	return Sign(priv, message), nil
  }
  
  // GenerateKey generates a public/private key pair using entropy from rand.
  // If rand is nil, crypto/rand.Reader will be used.
  func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error) {
  	if rand == nil {
  		rand = cryptorand.Reader
  	}
  
  	seed := make([]byte, SeedSize)
  	if _, err := io.ReadFull(rand, seed); err != nil {
  		return nil, nil, err
  	}
  
  	privateKey := NewKeyFromSeed(seed)
  	publicKey := make([]byte, PublicKeySize)
  	copy(publicKey, privateKey[32:])
  
  	return publicKey, privateKey, nil
  }
  
  // NewKeyFromSeed calculates a private key from a seed. It will panic if
  // len(seed) is not SeedSize. This function is provided for interoperability
  // with RFC 8032. RFC 8032's private keys correspond to seeds in this
  // package.
  func NewKeyFromSeed(seed []byte) PrivateKey {
  	if l := len(seed); l != SeedSize {
  		panic("ed25519: bad seed length: " + strconv.Itoa(l))
  	}
  
  	digest := sha512.Sum512(seed)
  	digest[0] &= 248
  	digest[31] &= 127
  	digest[31] |= 64
  
  	var A edwards25519.ExtendedGroupElement
  	var hBytes [32]byte
  	copy(hBytes[:], digest[:])
  	edwards25519.GeScalarMultBase(&A, &hBytes)
  	var publicKeyBytes [32]byte
  	A.ToBytes(&publicKeyBytes)
  
  	privateKey := make([]byte, PrivateKeySize)
  	copy(privateKey, seed)
  	copy(privateKey[32:], publicKeyBytes[:])
  
  	return privateKey
  }
  
  // Sign signs the message with privateKey and returns a signature. It will
  // panic if len(privateKey) is not PrivateKeySize.
  func Sign(privateKey PrivateKey, message []byte) []byte {
  	if l := len(privateKey); l != PrivateKeySize {
  		panic("ed25519: bad private key length: " + strconv.Itoa(l))
  	}
  
  	h := sha512.New()
  	h.Write(privateKey[:32])
  
  	var digest1, messageDigest, hramDigest [64]byte
  	var expandedSecretKey [32]byte
  	h.Sum(digest1[:0])
  	copy(expandedSecretKey[:], digest1[:])
  	expandedSecretKey[0] &= 248
  	expandedSecretKey[31] &= 63
  	expandedSecretKey[31] |= 64
  
  	h.Reset()
  	h.Write(digest1[32:])
  	h.Write(message)
  	h.Sum(messageDigest[:0])
  
  	var messageDigestReduced [32]byte
  	edwards25519.ScReduce(&messageDigestReduced, &messageDigest)
  	var R edwards25519.ExtendedGroupElement
  	edwards25519.GeScalarMultBase(&R, &messageDigestReduced)
  
  	var encodedR [32]byte
  	R.ToBytes(&encodedR)
  
  	h.Reset()
  	h.Write(encodedR[:])
  	h.Write(privateKey[32:])
  	h.Write(message)
  	h.Sum(hramDigest[:0])
  	var hramDigestReduced [32]byte
  	edwards25519.ScReduce(&hramDigestReduced, &hramDigest)
  
  	var s [32]byte
  	edwards25519.ScMulAdd(&s, &hramDigestReduced, &expandedSecretKey, &messageDigestReduced)
  
  	signature := make([]byte, SignatureSize)
  	copy(signature[:], encodedR[:])
  	copy(signature[32:], s[:])
  
  	return signature
  }
  
  // Verify reports whether sig is a valid signature of message by publicKey. It
  // will panic if len(publicKey) is not PublicKeySize.
  func Verify(publicKey PublicKey, message, sig []byte) bool {
  	if l := len(publicKey); l != PublicKeySize {
  		panic("ed25519: bad public key length: " + strconv.Itoa(l))
  	}
  
  	if len(sig) != SignatureSize || sig[63]&224 != 0 {
  		return false
  	}
  
  	var A edwards25519.ExtendedGroupElement
  	var publicKeyBytes [32]byte
  	copy(publicKeyBytes[:], publicKey)
  	if !A.FromBytes(&publicKeyBytes) {
  		return false
  	}
  	edwards25519.FeNeg(&A.X, &A.X)
  	edwards25519.FeNeg(&A.T, &A.T)
  
  	h := sha512.New()
  	h.Write(sig[:32])
  	h.Write(publicKey[:])
  	h.Write(message)
  	var digest [64]byte
  	h.Sum(digest[:0])
  
  	var hReduced [32]byte
  	edwards25519.ScReduce(&hReduced, &digest)
  
  	var R edwards25519.ProjectiveGroupElement
  	var s [32]byte
  	copy(s[:], sig[32:])
  
  	// https://tools.ietf.org/html/rfc8032#section-5.1.7 requires that s be in
  	// the range [0, order) in order to prevent signature malleability.
  	if !edwards25519.ScMinimal(&s) {
  		return false
  	}
  
  	edwards25519.GeDoubleScalarMultVartime(&R, &hReduced, &A, &s)
  
  	var checkR [32]byte
  	R.ToBytes(&checkR)
  	return bytes.Equal(sig[:32], checkR[:])
  }
  