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Merge pull request #132 from githubsands/primaryHandler
Create primaryHandler object inplace of the duplicate caduceusHandler that handles the primary routes - authorization and notification(notify) of the webhooks
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "net/http" | ||
|
|
||
| "github.com/Comcast/webpa-common/secure" | ||
| "github.com/Comcast/webpa-common/secure/handler" | ||
| "github.com/Comcast/webpa-common/secure/key" | ||
| "github.com/SermoDigital/jose/jwt" | ||
| "github.com/go-kit/kit/log" | ||
| "github.com/gorilla/mux" | ||
| "github.com/justinas/alice" | ||
| "github.com/spf13/viper" | ||
| ) | ||
|
|
||
| const ( | ||
| baseURI = "api" | ||
| version = "v3" | ||
| ) | ||
|
|
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| type JWTValidator struct { | ||
| // JWTKeys is used to create the key.Resolver for JWT verification keys | ||
| Keys key.ResolverFactory | ||
|
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| // Custom is an optional configuration section that defines | ||
| // custom rules for validation over and above the standard RFC rules. | ||
| Custom secure.JWTValidatorFactory | ||
| } | ||
|
|
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| func NewPrimaryHandler(l log.Logger, v *viper.Viper, sw *ServerHandler) (*mux.Router, error) { | ||
| var ( | ||
| router = mux.NewRouter() | ||
| ) | ||
|
|
||
| validator, err := getValidator(v) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| authHandler := handler.AuthorizationHandler{ | ||
| HeaderName: "Authorization", | ||
| ForbiddenStatusCode: 403, | ||
| Validator: validator, | ||
| Logger: l, | ||
| } | ||
|
|
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| authorizationDecorator := alice.New(authHandler.Decorate) | ||
|
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| return configServerRouter(router, authorizationDecorator, sw), nil | ||
| } | ||
|
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| func configServerRouter(router *mux.Router, primaryHandler alice.Chain, serverWrapper *ServerHandler) *mux.Router { | ||
| var singleContentType = func(r *http.Request, _ *mux.RouteMatch) bool { | ||
| return len(r.Header["Content-Type"]) == 1 //require single specification for Content-Type Header | ||
| } | ||
|
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| router.Handle("/"+fmt.Sprintf("%s/%s", baseURI, version)+"/notify", primaryHandler.Then(serverWrapper)).Methods("POST").HeadersRegexp("Content-Type", "application/msgpack").MatcherFunc(singleContentType) | ||
|
|
||
| return router | ||
| } | ||
|
|
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| func getValidator(v *viper.Viper) (validator secure.Validator, err error) { | ||
| var jwtVals []JWTValidator | ||
|
|
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| v.UnmarshalKey("jwtValidators", &jwtVals) | ||
|
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| // if a JWTKeys section was supplied, configure a JWS validator | ||
| // and append it to the chain of validators | ||
| validators := make(secure.Validators, 0, len(jwtVals)) | ||
|
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||
| for _, validatorDescriptor := range jwtVals { | ||
| var keyResolver key.Resolver | ||
| keyResolver, err = validatorDescriptor.Keys.NewResolver() | ||
| if err != nil { | ||
| validator = validators | ||
| return | ||
| } | ||
|
|
||
| validators = append( | ||
| validators, | ||
| secure.JWSValidator{ | ||
| DefaultKeyId: DEFAULT_KEY_ID, | ||
| Resolver: keyResolver, | ||
| JWTValidators: []*jwt.Validator{validatorDescriptor.Custom.New()}, | ||
| }, | ||
| ) | ||
| } | ||
|
|
||
| // TODO: This should really be part of the unmarshalled validators somehow | ||
| basicAuth := v.GetStringSlice("authHeader") | ||
| for _, authValue := range basicAuth { | ||
| validators = append( | ||
| validators, | ||
| secure.ExactMatchValidator(authValue), | ||
| ) | ||
| } | ||
|
|
||
| validator = validators | ||
|
|
||
| return | ||
| } |
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