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Signed-off-by: Josh Kim <[email protected]>
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127 changes: 127 additions & 0 deletions
127
plank/pkg/server/auth_provider_manager/auth_provider_manager.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,127 @@ | ||
| package auth_provider_manager | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "regexp" | ||
| "sync" | ||
| ) | ||
|
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| type AuthProviderType int | ||
|
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| const ( | ||
| STOMPAuthProviderType AuthProviderType = iota | ||
| RESTAuthProviderType | ||
|
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| AUTH_PROVIDER_MANAGER_STORE = "AuthProviderManager" | ||
| AUTH_PROVIDER_MANAGER_STORE_INIT_EVENT = "INIT" | ||
| AUTH_PROVIDER_MANAGER_INSTANCE_KEY = "instance" | ||
| ) | ||
|
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| var authProviderMgrInstance AuthProviderManager | ||
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| type AuthProviderManager interface { | ||
| GetRESTAuthProvider(uri string) (*RESTAuthProvider, error) | ||
| GetSTOMPAuthProvider() (*STOMPAuthProvider, error) | ||
| SetRESTAuthProvider(regex *regexp.Regexp, provider *RESTAuthProvider) int | ||
| SetSTOMPAuthProvider(provider *STOMPAuthProvider) error | ||
| DeleteRESTAuthProvider(idx int) error | ||
| DeleteSTOMPAuthProvider() error | ||
| } | ||
|
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| type regexpRESTAuthProviderPair struct { | ||
| regexp *regexp.Regexp | ||
| restAuthProvider *RESTAuthProvider | ||
| } | ||
|
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| type authProviderManager struct { | ||
| stompAuthProvider *STOMPAuthProvider | ||
| uriPatternRestAuthProviderPairs []*regexpRESTAuthProviderPair | ||
| mu sync.Mutex | ||
| } | ||
|
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| type AuthProviderNotFoundError struct {} | ||
|
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| func (e *AuthProviderNotFoundError) Error() string { | ||
| return fmt.Sprintf("no auth provider was found at the given location/name") | ||
| } | ||
|
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| type AuthError struct { | ||
| Code int | ||
| Message string | ||
| } | ||
| func (e *AuthError) Error() string { | ||
| return fmt.Sprintf("authentication/authorization error (%d): %s", e.Code, e.Message) | ||
| } | ||
|
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| func (a *authProviderManager) GetRESTAuthProvider(uri string) (*RESTAuthProvider, error) { | ||
| a.mu.Lock() | ||
| defer a.mu.Unlock() | ||
|
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| // perform regex tests to find the first matching REST auth provider | ||
| for _, pair := range a.uriPatternRestAuthProviderPairs { | ||
| if pair.regexp.Match([]byte(uri)) { | ||
| return pair.restAuthProvider, nil | ||
| } | ||
| } | ||
| return nil, &AuthProviderNotFoundError{} | ||
| } | ||
|
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| func (a *authProviderManager) GetSTOMPAuthProvider() (*STOMPAuthProvider, error) { | ||
| a.mu.Lock() | ||
| defer a.mu.Unlock() | ||
| if a.stompAuthProvider == nil { | ||
| return nil, &AuthProviderNotFoundError{} | ||
| } | ||
| return a.stompAuthProvider, nil | ||
| } | ||
|
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| func (a *authProviderManager) SetRESTAuthProvider(regex *regexp.Regexp, provider *RESTAuthProvider) int { | ||
| a.mu.Lock() | ||
| defer a.mu.Unlock() | ||
| a.uriPatternRestAuthProviderPairs = append(a.uriPatternRestAuthProviderPairs, ®expRESTAuthProviderPair{ | ||
| regexp: regex, | ||
| restAuthProvider: provider, | ||
| }) | ||
|
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| return len(a.uriPatternRestAuthProviderPairs)-1 | ||
| } | ||
|
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| func (a *authProviderManager) SetSTOMPAuthProvider(provider *STOMPAuthProvider) error { | ||
| a.mu.Lock() | ||
| defer a.mu.Unlock() | ||
| a.stompAuthProvider = provider | ||
| return nil | ||
| } | ||
|
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| func (a *authProviderManager) DeleteRESTAuthProvider(idx int) error { | ||
| a.mu.Lock() | ||
| defer a.mu.Unlock() | ||
| if idx < 0 || idx > len(a.uriPatternRestAuthProviderPairs)-1 { | ||
| return fmt.Errorf("no REST auth provider exists at index %d", idx) | ||
| } | ||
| borderLeft := idx | ||
| borderRight := idx+1 | ||
| if idx > 0 { | ||
| borderLeft-- | ||
| } | ||
| a.uriPatternRestAuthProviderPairs = append(a.uriPatternRestAuthProviderPairs[:borderLeft], a.uriPatternRestAuthProviderPairs[borderRight:]...) | ||
| return nil | ||
| } | ||
|
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| func (a *authProviderManager) DeleteSTOMPAuthProvider() error { | ||
| a.mu.Lock() | ||
| defer a.mu.Unlock() | ||
| a.stompAuthProvider = nil | ||
| return nil | ||
| } | ||
|
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| func GetAuthProviderManager() AuthProviderManager { | ||
| if authProviderMgrInstance == nil { | ||
| authProviderMgrInstance = &authProviderManager{} | ||
| } | ||
| return authProviderMgrInstance | ||
| } | ||
|
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| func DestroyAuthProviderManager() { | ||
| authProviderMgrInstance = nil | ||
| } |
69 changes: 69 additions & 0 deletions
69
plank/pkg/server/auth_provider_manager/rest_auth_provider.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| package auth_provider_manager | ||
|
|
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| import ( | ||
| "github.com/vmware/transport-go/plank/utils" | ||
| "net/http" | ||
| "sort" | ||
| "sync" | ||
| ) | ||
|
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| type HttpRequestValidatorFn func(request *http.Request) *AuthError | ||
|
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| type httpRequestValidatorRule struct { | ||
| name string | ||
| priority int | ||
| validatorFn HttpRequestValidatorFn | ||
| } | ||
|
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| type RESTAuthProvider struct { | ||
| rules map[string]*httpRequestValidatorRule | ||
| rulesByPriority []*httpRequestValidatorRule | ||
| mu sync.Mutex | ||
| } | ||
|
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| func (ap *RESTAuthProvider) Validate(request *http.Request) *AuthError { | ||
| ap.mu.Lock() | ||
| defer ap.mu.Unlock() | ||
| defer func() { | ||
| if r := recover(); r != nil { | ||
| utils.Log.Errorln(r) | ||
| } | ||
| }() | ||
|
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| for _, rule := range ap.rulesByPriority { | ||
| err := rule.validatorFn(request) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
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| func (ap *RESTAuthProvider) AddRule(name string, priority int, validatorFn HttpRequestValidatorFn) { | ||
| ap.mu.Lock() | ||
| defer ap.mu.Unlock() | ||
|
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| rule := &httpRequestValidatorRule{ | ||
| name: name, | ||
| priority: priority, | ||
| validatorFn: validatorFn, | ||
| } | ||
| ap.rules[name] = rule | ||
| ap.rulesByPriority = append(ap.rulesByPriority, rule) | ||
| sort.SliceStable(ap.rulesByPriority, func(i, j int) bool { | ||
| return ap.rulesByPriority[i].priority < ap.rulesByPriority[j].priority | ||
| }) | ||
| } | ||
|
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| func (ap *RESTAuthProvider) Reset() { | ||
| ap.mu.Lock() | ||
| defer ap.mu.Unlock() | ||
| ap.rules = make(map[string]*httpRequestValidatorRule) | ||
| ap.rulesByPriority = make([]*httpRequestValidatorRule, 0) | ||
| } | ||
|
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| func NewRESTAuthProvider() *RESTAuthProvider { | ||
| ap := &RESTAuthProvider{} | ||
| ap.Reset() | ||
| return ap | ||
| } |
77 changes: 77 additions & 0 deletions
77
plank/pkg/server/auth_provider_manager/stomp_auth_provider.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| package auth_provider_manager | ||
|
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| import ( | ||
| "github.com/go-stomp/stomp/frame" | ||
| "github.com/vmware/transport-go/plank/utils" | ||
| "sort" | ||
| "sync" | ||
| ) | ||
|
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| type StompFrameValidatorFn func(fr *frame.Frame) *AuthError | ||
|
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| type stompFrameValidatorRule struct { | ||
| msgFrameType string | ||
| priority int | ||
| validatorFn StompFrameValidatorFn | ||
| } | ||
|
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| type STOMPAuthProvider struct { | ||
| rules map[string][]*stompFrameValidatorRule | ||
| mu sync.Mutex | ||
| } | ||
|
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| func (ap *STOMPAuthProvider) Validate(fr *frame.Frame) error { | ||
| ap.mu.Lock() | ||
| defer ap.mu.Unlock() | ||
| defer func() { | ||
| if r := recover(); r != nil { | ||
| utils.Log.Errorln(r) | ||
| } | ||
| }() | ||
|
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| rules, found := ap.rules[fr.Command] | ||
| // if no rule was found let the request pass through | ||
| if !found { | ||
| return nil | ||
| } | ||
|
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| for _, rule := range rules { | ||
| err := rule.validatorFn(fr) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
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| func (ap *STOMPAuthProvider) AddRule(types []string, priority int, validatorFn StompFrameValidatorFn) { | ||
| ap.mu.Lock() | ||
| defer ap.mu.Unlock() | ||
|
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| for _, typ := range types { | ||
| rule := &stompFrameValidatorRule{ | ||
| msgFrameType: typ, | ||
| priority: priority, | ||
| validatorFn: validatorFn, | ||
| } | ||
| if _, ok := ap.rules[typ]; !ok { | ||
| ap.rules[typ] = make([]*stompFrameValidatorRule, 0) | ||
| } | ||
| ap.rules[typ] = append(ap.rules[typ], rule) | ||
| sort.SliceStable(ap.rules[typ], func(i, j int) bool { | ||
| return ap.rules[typ][i].priority < ap.rules[typ][j].priority | ||
| }) | ||
| } | ||
| } | ||
|
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| func (ap *STOMPAuthProvider) Reset() { | ||
| ap.mu.Lock() | ||
| defer ap.mu.Unlock() | ||
| ap.rules = make(map[string][]*stompFrameValidatorRule) | ||
| } | ||
|
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| func NewSTOMPAuthProvider() *STOMPAuthProvider { | ||
| return &STOMPAuthProvider{ | ||
| rules: make(map[string][]*stompFrameValidatorRule), | ||
| } | ||
| } |
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