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Do not return 500s from redirect service for missing realms (#1382)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| // Copyright 2020 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package routes | ||
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||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "net/http" | ||
|
|
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| "github.com/google/exposure-notifications-verification-server/pkg/cache" | ||
| "github.com/google/exposure-notifications-verification-server/pkg/config" | ||
| "github.com/google/exposure-notifications-verification-server/pkg/controller" | ||
| "github.com/google/exposure-notifications-verification-server/pkg/controller/associated" | ||
| "github.com/google/exposure-notifications-verification-server/pkg/controller/middleware" | ||
| "github.com/google/exposure-notifications-verification-server/pkg/controller/redirect" | ||
| "github.com/google/exposure-notifications-verification-server/pkg/database" | ||
| "github.com/google/exposure-notifications-verification-server/pkg/render" | ||
|
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| "github.com/google/exposure-notifications-server/pkg/logging" | ||
|
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| "github.com/gorilla/mux" | ||
| ) | ||
|
|
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| // ENXRedirect defines routes for the redirector service for ENX. | ||
| func ENXRedirect( | ||
| ctx context.Context, | ||
| cfg *config.RedirectConfig, | ||
| db *database.Database, | ||
| cacher cache.Cacher, | ||
| ) (http.Handler, error) { | ||
| // Create the router | ||
| r := mux.NewRouter() | ||
|
|
||
| // Common observability context | ||
| ctx, obs := middleware.WithObservability(ctx) | ||
| r.Use(obs) | ||
|
|
||
| // Create the renderer | ||
| h, err := render.New(ctx, cfg.AssetsPath, cfg.DevMode) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to create renderer: %w", err) | ||
| } | ||
|
|
||
| // Request ID injection | ||
| populateRequestID := middleware.PopulateRequestID(h) | ||
| r.Use(populateRequestID) | ||
|
|
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| // Logger injection | ||
| populateLogger := middleware.PopulateLogger(logging.FromContext(ctx)) | ||
| r.Use(populateLogger) | ||
|
|
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| // Install common security headers | ||
| r.Use(middleware.SecureHeaders(cfg.DevMode, "html")) | ||
|
|
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| // Enable debug headers | ||
| processDebug := middleware.ProcessDebug() | ||
| r.Use(processDebug) | ||
|
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| // Handle health. | ||
| r.Handle("/health", controller.HandleHealthz(ctx, nil, h)).Methods("GET") | ||
|
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| // iOS and Android include functionality to associate data between web-apps | ||
| // and device apps. Things like handoff between websites and apps, or | ||
| // shared credentials are the common usecases. The redirect server | ||
| // publishes the metadata needed to share data between the two domains to | ||
| // offer a more seemless experience between the website and apps. iOS and | ||
| // Android publish specs as to what this format looks like, and both live | ||
| // under the /.well-known directory on the server. | ||
| // | ||
| // Android Specs: | ||
| // https://developer.android.com/training/app-links/verify-site-associations | ||
| // iOS Specs: | ||
| // https://developer.apple.com/documentation/safariservices/supporting_associated_domains | ||
| // | ||
| { | ||
| wk := r.PathPrefix("/.well-known").Subrouter() | ||
|
|
||
| // Enable the iOS and Android redirect handler. | ||
| assocController, err := associated.New(ctx, cfg, db, cacher, h) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to create associated links controller: %w", err) | ||
| } | ||
| wk.PathPrefix("/apple-app-site-association").Handler(assocController.HandleIos()).Methods("GET") | ||
| wk.PathPrefix("/assetlinks.json").Handler(assocController.HandleAndroid()).Methods("GET") | ||
| } | ||
|
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| // Handle redirects. | ||
| redirectController, err := redirect.New(ctx, db, cfg, cacher, h) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to create redirect controller: %w", err) | ||
| } | ||
| r.PathPrefix("/").Handler(redirectController.HandleIndex()).Methods("GET") | ||
|
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| // Wrap the main router in the mutating middleware method. This cannot be | ||
| // inserted as middleware because gorilla processes the method before | ||
| // middleware. | ||
| mux := http.NewServeMux() | ||
| mux.Handle("/", middleware.MutateMethod()(r)) | ||
| return mux, nil | ||
| } |
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