auth
auth/scope.go
Remove concept of usernames. We really have no reason to use usernames, and they're complicating things more than they need to. We're going to keep logins the same, because we want to be able to support OAuth2/OpenID/whatever logins in the future, and keeping a type associated with those logins is probably for the best.
| paddy@134 | 1 package auth |
| paddy@134 | 2 |
| paddy@134 | 3 import ( |
| paddy@134 | 4 "errors" |
| paddy@134 | 5 "sort" |
| paddy@134 | 6 ) |
| paddy@134 | 7 |
| paddy@134 | 8 var ( |
| paddy@153 | 9 ErrNoScopeStore = errors.New("scopeStore not set in Context") |
| paddy@153 | 10 ErrScopeNotFound = errors.New("scope not found") |
| paddy@153 | 11 ErrScopeAlreadyExists = errors.New("scope already exists") |
| paddy@134 | 12 ) |
| paddy@134 | 13 |
| paddy@134 | 14 // Scope represents a limit on the access that a grant provides. |
| paddy@134 | 15 type Scope struct { |
| paddy@134 | 16 ID string |
| paddy@134 | 17 Name string |
| paddy@134 | 18 Description string |
| paddy@134 | 19 } |
| paddy@134 | 20 |
| paddy@134 | 21 func (s *Scope) ApplyChange(change ScopeChange) { |
| paddy@134 | 22 if change.Name != nil { |
| paddy@134 | 23 s.Name = *change.Name |
| paddy@134 | 24 } |
| paddy@134 | 25 if change.Description != nil { |
| paddy@134 | 26 s.Description = *change.Description |
| paddy@134 | 27 } |
| paddy@134 | 28 } |
| paddy@134 | 29 |
| paddy@134 | 30 type sortedScopes []Scope |
| paddy@134 | 31 |
| paddy@134 | 32 func (s sortedScopes) Len() int { |
| paddy@134 | 33 return len(s) |
| paddy@134 | 34 } |
| paddy@134 | 35 |
| paddy@134 | 36 func (s sortedScopes) Swap(i, j int) { |
| paddy@134 | 37 s[i], s[j] = s[j], s[i] |
| paddy@134 | 38 } |
| paddy@134 | 39 |
| paddy@134 | 40 func (s sortedScopes) Less(i, j int) bool { |
| paddy@134 | 41 return s[i].ID < s[j].ID |
| paddy@134 | 42 } |
| paddy@134 | 43 |
| paddy@134 | 44 // ScopeChange represents a change to a Scope. |
| paddy@134 | 45 type ScopeChange struct { |
| paddy@134 | 46 Name *string |
| paddy@134 | 47 Description *string |
| paddy@134 | 48 } |
| paddy@134 | 49 |
| paddy@152 | 50 func (s ScopeChange) Empty() bool { |
| paddy@152 | 51 return s.Name == nil && s.Description == nil |
| paddy@152 | 52 } |
| paddy@152 | 53 |
| paddy@134 | 54 type scopeStore interface { |
| paddy@134 | 55 createScopes(scopes []Scope) error |
| paddy@134 | 56 getScopes(ids []string) ([]Scope, error) |
| paddy@152 | 57 updateScope(id string, change ScopeChange) error |
| paddy@134 | 58 removeScopes(ids []string) error |
| paddy@134 | 59 listScopes() ([]Scope, error) |
| paddy@134 | 60 } |
| paddy@134 | 61 |
| paddy@134 | 62 func (m *memstore) createScopes(scopes []Scope) error { |
| paddy@134 | 63 m.scopeLock.Lock() |
| paddy@134 | 64 defer m.scopeLock.Unlock() |
| paddy@134 | 65 |
| paddy@153 | 66 for _, scope := range scopes { |
| paddy@134 | 67 if _, ok := m.scopes[scope.ID]; ok { |
| paddy@153 | 68 return ErrScopeAlreadyExists |
| paddy@134 | 69 } |
| paddy@134 | 70 } |
| paddy@134 | 71 for _, scope := range scopes { |
| paddy@134 | 72 m.scopes[scope.ID] = scope |
| paddy@134 | 73 } |
| paddy@134 | 74 return nil |
| paddy@134 | 75 } |
| paddy@134 | 76 |
| paddy@134 | 77 func (m *memstore) getScopes(ids []string) ([]Scope, error) { |
| paddy@134 | 78 m.scopeLock.RLock() |
| paddy@134 | 79 defer m.scopeLock.RUnlock() |
| paddy@134 | 80 |
| paddy@134 | 81 scopes := []Scope{} |
| paddy@153 | 82 for _, id := range ids { |
| paddy@134 | 83 scope, ok := m.scopes[id] |
| paddy@134 | 84 if !ok { |
| paddy@153 | 85 continue |
| paddy@134 | 86 } |
| paddy@134 | 87 scopes = append(scopes, scope) |
| paddy@134 | 88 } |
| paddy@134 | 89 sorted := sortedScopes(scopes) |
| paddy@134 | 90 sort.Sort(sorted) |
| paddy@134 | 91 scopes = sorted |
| paddy@134 | 92 return scopes, nil |
| paddy@134 | 93 } |
| paddy@134 | 94 |
| paddy@152 | 95 func (m *memstore) updateScope(id string, change ScopeChange) error { |
| paddy@134 | 96 m.scopeLock.Lock() |
| paddy@134 | 97 defer m.scopeLock.Unlock() |
| paddy@134 | 98 |
| paddy@152 | 99 scope, ok := m.scopes[id] |
| paddy@152 | 100 if !ok { |
| paddy@153 | 101 return ErrScopeNotFound |
| paddy@134 | 102 } |
| paddy@152 | 103 scope.ApplyChange(change) |
| paddy@152 | 104 m.scopes[id] = scope |
| paddy@152 | 105 return nil |
| paddy@134 | 106 } |
| paddy@134 | 107 |
| paddy@134 | 108 func (m *memstore) removeScopes(ids []string) error { |
| paddy@134 | 109 m.scopeLock.Lock() |
| paddy@134 | 110 defer m.scopeLock.Unlock() |
| paddy@134 | 111 |
| paddy@153 | 112 for _, id := range ids { |
| paddy@134 | 113 if _, ok := m.scopes[id]; !ok { |
| paddy@153 | 114 return ErrScopeNotFound |
| paddy@134 | 115 } |
| paddy@134 | 116 } |
| paddy@134 | 117 for _, id := range ids { |
| paddy@134 | 118 delete(m.scopes, id) |
| paddy@134 | 119 } |
| paddy@134 | 120 return nil |
| paddy@134 | 121 } |
| paddy@134 | 122 |
| paddy@134 | 123 func (m *memstore) listScopes() ([]Scope, error) { |
| paddy@134 | 124 m.scopeLock.RLock() |
| paddy@134 | 125 defer m.scopeLock.RUnlock() |
| paddy@134 | 126 |
| paddy@134 | 127 scopes := []Scope{} |
| paddy@134 | 128 for _, scope := range m.scopes { |
| paddy@134 | 129 scopes = append(scopes, scope) |
| paddy@134 | 130 } |
| paddy@134 | 131 sorted := sortedScopes(scopes) |
| paddy@134 | 132 sort.Sort(sorted) |
| paddy@134 | 133 scopes = sorted |
| paddy@134 | 134 return scopes, nil |
| paddy@134 | 135 } |