auth
auth/token.go
Make static error messages HTML safe. We may, at some point, want to use links or HTML elements in these static error messages. Since they're hardcoded, let's pass them as safe HTML strings.
| paddy@28 | 1 package auth |
| paddy@28 | 2 |
| paddy@28 | 3 import ( |
| paddy@28 | 4 "errors" |
| paddy@28 | 5 "time" |
| paddy@28 | 6 |
| paddy@45 | 7 "code.secondbit.org/uuid" |
| paddy@28 | 8 ) |
| paddy@28 | 9 |
| paddy@28 | 10 var ( |
| paddy@57 | 11 // ErrNoTokenStore is returned when a Context tries to act on a tokenStore without setting one first. |
| paddy@57 | 12 ErrNoTokenStore = errors.New("no tokenStore was specified for the Context") |
| paddy@57 | 13 // ErrTokenNotFound is returned when a Token is requested but not found in a tokenStore. |
| paddy@57 | 14 ErrTokenNotFound = errors.New("token not found in tokenStore") |
| paddy@57 | 15 // ErrTokenAlreadyExists is returned when a Token is added to a tokenStore, but another Token with |
| paddy@57 | 16 // the same AccessToken property already exists in the tokenStore. |
| paddy@57 | 17 ErrTokenAlreadyExists = errors.New("token already exists in tokenStore") |
| paddy@28 | 18 ) |
| paddy@28 | 19 |
| paddy@57 | 20 // Token represents an access and/or refresh token that the Client can use to access user data |
| paddy@57 | 21 // or obtain a new access token. |
| paddy@28 | 22 type Token struct { |
| paddy@28 | 23 AccessToken string |
| paddy@28 | 24 RefreshToken string |
| paddy@28 | 25 Created time.Time |
| paddy@28 | 26 ExpiresIn int32 |
| paddy@28 | 27 TokenType string |
| paddy@28 | 28 Scope string |
| paddy@28 | 29 ProfileID uuid.ID |
| paddy@28 | 30 } |
| paddy@28 | 31 |
| paddy@57 | 32 type tokenStore interface { |
| paddy@57 | 33 getToken(token string, refresh bool) (Token, error) |
| paddy@57 | 34 saveToken(token Token) error |
| paddy@57 | 35 removeToken(token string) error |
| paddy@57 | 36 getTokensByProfileID(profileID uuid.ID, num, offset int) ([]Token, error) |
| paddy@28 | 37 } |
| paddy@28 | 38 |
| paddy@57 | 39 func (m *memstore) getToken(token string, refresh bool) (Token, error) { |
| paddy@28 | 40 if refresh { |
| paddy@28 | 41 t, err := m.lookupTokenByRefresh(token) |
| paddy@28 | 42 if err != nil { |
| paddy@28 | 43 return Token{}, err |
| paddy@28 | 44 } |
| paddy@28 | 45 token = t |
| paddy@28 | 46 } |
| paddy@28 | 47 m.tokenLock.RLock() |
| paddy@28 | 48 defer m.tokenLock.RUnlock() |
| paddy@28 | 49 result, ok := m.tokens[token] |
| paddy@28 | 50 if !ok { |
| paddy@28 | 51 return Token{}, ErrTokenNotFound |
| paddy@28 | 52 } |
| paddy@28 | 53 return result, nil |
| paddy@28 | 54 } |
| paddy@28 | 55 |
| paddy@57 | 56 func (m *memstore) saveToken(token Token) error { |
| paddy@28 | 57 m.tokenLock.Lock() |
| paddy@28 | 58 defer m.tokenLock.Unlock() |
| paddy@28 | 59 _, ok := m.tokens[token.AccessToken] |
| paddy@28 | 60 if ok { |
| paddy@28 | 61 return ErrTokenAlreadyExists |
| paddy@28 | 62 } |
| paddy@28 | 63 m.tokens[token.AccessToken] = token |
| paddy@28 | 64 if token.RefreshToken != "" { |
| paddy@28 | 65 m.refreshTokenLookup[token.RefreshToken] = token.AccessToken |
| paddy@28 | 66 } |
| paddy@28 | 67 if _, ok = m.profileTokenLookup[token.ProfileID.String()]; ok { |
| paddy@28 | 68 m.profileTokenLookup[token.ProfileID.String()] = append(m.profileTokenLookup[token.ProfileID.String()], token.AccessToken) |
| paddy@28 | 69 } else { |
| paddy@28 | 70 m.profileTokenLookup[token.ProfileID.String()] = []string{token.AccessToken} |
| paddy@28 | 71 } |
| paddy@28 | 72 return nil |
| paddy@28 | 73 } |
| paddy@28 | 74 |
| paddy@57 | 75 func (m *memstore) removeToken(token string) error { |
| paddy@28 | 76 m.tokenLock.Lock() |
| paddy@28 | 77 defer m.tokenLock.Unlock() |
| paddy@28 | 78 t, ok := m.tokens[token] |
| paddy@28 | 79 if !ok { |
| paddy@28 | 80 return ErrTokenNotFound |
| paddy@28 | 81 } |
| paddy@28 | 82 delete(m.tokens, token) |
| paddy@28 | 83 if t.RefreshToken != "" { |
| paddy@28 | 84 delete(m.refreshTokenLookup, t.RefreshToken) |
| paddy@28 | 85 } |
| paddy@28 | 86 pos := -1 |
| paddy@28 | 87 for p, item := range m.profileTokenLookup[t.ProfileID.String()] { |
| paddy@28 | 88 if item == token { |
| paddy@28 | 89 pos = p |
| paddy@28 | 90 break |
| paddy@28 | 91 } |
| paddy@28 | 92 } |
| paddy@28 | 93 if pos >= 0 { |
| paddy@28 | 94 m.profileTokenLookup[t.ProfileID.String()] = append(m.profileTokenLookup[t.ProfileID.String()][:pos], m.profileTokenLookup[t.ProfileID.String()][pos+1:]...) |
| paddy@28 | 95 } |
| paddy@28 | 96 return nil |
| paddy@28 | 97 } |
| paddy@28 | 98 |
| paddy@57 | 99 func (m *memstore) getTokensByProfileID(profileID uuid.ID, num, offset int) ([]Token, error) { |
| paddy@28 | 100 ids, err := m.lookupTokensByProfileID(profileID.String()) |
| paddy@28 | 101 if err != nil { |
| paddy@28 | 102 return []Token{}, err |
| paddy@28 | 103 } |
| paddy@28 | 104 if len(ids) > num+offset { |
| paddy@28 | 105 ids = ids[offset : num+offset] |
| paddy@28 | 106 } else if len(ids) > offset { |
| paddy@28 | 107 ids = ids[offset:] |
| paddy@28 | 108 } else { |
| paddy@28 | 109 return []Token{}, nil |
| paddy@28 | 110 } |
| paddy@28 | 111 tokens := []Token{} |
| paddy@28 | 112 for _, id := range ids { |
| paddy@57 | 113 token, err := m.getToken(id, false) |
| paddy@28 | 114 if err != nil { |
| paddy@28 | 115 return []Token{}, err |
| paddy@28 | 116 } |
| paddy@28 | 117 tokens = append(tokens, token) |
| paddy@28 | 118 } |
| paddy@28 | 119 return tokens, nil |
| paddy@28 | 120 } |