Certificates Renewal + SSE

- Certificate renewal is just a re-request as it's forced already
- Rejig the routes for readability
- Added Server Side Events so that the UI would invalidate the
cache when changes happen on the backend, such as certs being
provided or failing
- Added a SSE Token, which has the same shelf life as normal token
but can't be used interchangeably. The reason for this is, the
SSE endpoint needs a token for auth as a Query param, so it would
be stored in log files. If someone where to get a hold of that,
it's pretty useless as it can't be used to change anything, only
to listen for events until it expires
- Added test endpoint for SSE testing only availabe in debug mode

backend/embed/api_docs/api.swagger.json

@@ -163,6 +163,11 @@
 				"$ref": "file://./paths/tokens/post.json"
 			}
 		},
+		"/tokens/sse": {
+			"post": {
+				"$ref": "file://./paths/tokens/sse/post.json"
+			}
+		},
 		"/upstreams": {
 			"get": {
 				"$ref": "file://./paths/upstreams/get.json"

backend/embed/api_docs/paths/tokens/get.json

@@ -1,21 +1,17 @@
 {
 	"operationId": "refreshToken",
 	"summary": "Refresh your access token",
-	"tags": [
-		"Tokens"
-	],
+	"tags": ["Tokens"],
 	"responses": {
 		"200": {
 			"description": "200 response",
 			"content": {
 				"application/json": {
 					"schema": {
-						"required": [
-							"result"
-						],
+						"required": ["result"],
 						"properties": {
 							"result": {
-								"$ref": "#/components/schemas/StreamObject"
+								"$ref": "#/components/schemas/TokenObject"
 							}
 						}
 					},
@@ -34,4 +30,4 @@
 			}
 		}
 	}
-}
+}

backend/embed/api_docs/paths/tokens/post.json

@@ -1,9 +1,7 @@
 {
 	"operationId": "requestToken",
 	"summary": "Request a new access token from credentials",
-	"tags": [
-		"Tokens"
-	],
+	"tags": ["Tokens"],
 	"requestBody": {
 		"description": "Credentials Payload",
 		"required": true,
@@ -19,12 +17,10 @@
 			"content": {
 				"application/json": {
 					"schema": {
-						"required": [
-							"result"
-						],
+						"required": ["result"],
 						"properties": {
 							"result": {
-								"$ref": "#/components/schemas/StreamObject"
+								"$ref": "#/components/schemas/TokenObject"
 							}
 						}
 					},
@@ -49,9 +45,7 @@
 					"schema": {
 						"type": "object",
 						"additionalProperties": false,
-						"required": [
-							"error"
-						],
+						"required": ["error"],
 						"properties": {
 							"result": {
 								"nullable": true
@@ -76,4 +70,4 @@
 			}
 		}
 	}
-}
+}

backend/embed/api_docs/paths/tokens/sse/post.json

@@ -0,0 +1,33 @@
+{
+	"operationId": "requestSSEToken",
+	"summary": "Request a new SSE token",
+	"tags": ["Tokens"],
+	"responses": {
+		"200": {
+			"description": "200 response",
+			"content": {
+				"application/json": {
+					"schema": {
+						"required": ["result"],
+						"properties": {
+							"result": {
+								"$ref": "#/components/schemas/TokenObject"
+							}
+						}
+					},
+					"examples": {
+						"default": {
+							"value": {
+								"result": {
+									"expires": 1566540510,
+									"token": "eyJhbGciOiJSUzUxMiIsInR5cCI6IkpXVCJ9.ey...xaHKYr3Kk6MvkUjcC4",
+									"scope": "user"
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+}

backend/go.mod

@@ -12,6 +12,7 @@ require (
 	github.com/go-chi/chi v4.1.2+incompatible
 	github.com/go-chi/cors v1.2.1
 	github.com/go-chi/jwtauth v4.0.4+incompatible
+	github.com/jc21/go-sse v0.0.0-20230307041911-8ea9bdc44a58
 	github.com/jc21/jsref v0.0.0-20210608024405-a97debfc4760
 	github.com/jmoiron/sqlx v1.3.5
 	github.com/mattn/go-sqlite3 v1.14.16

backend/go.sum

@@ -27,6 +27,12 @@ github.com/go-errors/errors v1.4.2 h1:J6MZopCL4uSllY1OfXM374weqZFFItUbrImctkmUxI
 github.com/go-sql-driver/mysql v1.6.0 h1:BCTh4TKNUYmOmMUcQ3IipzF5prigylS7XXjEkfCHuOE=
 github.com/go-sql-driver/mysql v1.6.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
 github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
+github.com/jc21/go-sse v0.0.0-20230307004720-e0a2266806a8 h1:3zrxixsRpzrMXd/c6vUHaoIi9OqirEPxPe4Ydxn3jNU=
+github.com/jc21/go-sse v0.0.0-20230307004720-e0a2266806a8/go.mod h1:4v5Xmm0eYuaWqKJ63XUV5YfQPoxtId3DgDytbnWhi+s=
+github.com/jc21/go-sse v0.0.0-20230307015818-b2783ddda573 h1:aaRu9mFSjxNfbXWVe7MlarmuB0vcdTShXFbxjzHAseA=
+github.com/jc21/go-sse v0.0.0-20230307015818-b2783ddda573/go.mod h1:4v5Xmm0eYuaWqKJ63XUV5YfQPoxtId3DgDytbnWhi+s=
+github.com/jc21/go-sse v0.0.0-20230307041911-8ea9bdc44a58 h1:WSD0YdEuFPZHIe8hkAjxoAEWZnzieAiLg3zw28EVf80=
+github.com/jc21/go-sse v0.0.0-20230307041911-8ea9bdc44a58/go.mod h1:4v5Xmm0eYuaWqKJ63XUV5YfQPoxtId3DgDytbnWhi+s=
 github.com/jc21/jsref v0.0.0-20210608024405-a97debfc4760 h1:7wxq2DIgtO36KLrFz1RldysO0WVvcYsD49G9tyAs01k=
 github.com/jc21/jsref v0.0.0-20210608024405-a97debfc4760/go.mod h1:yIq2t51OJgVsdRlPY68NAnyVdBH0kYXxDTFtUxOap80=
 github.com/jmoiron/sqlx v1.3.5 h1:vFFPA71p1o5gAeqtEAwLU4dnX2napprKtHr7PYIcN3g=

backend/internal/api/handler/certificates.go

@@ -39,23 +39,11 @@ func GetCertificates() func(http.ResponseWriter, *http.Request) {
 // Route: GET /certificates/{certificateID}
 func GetCertificate() func(http.ResponseWriter, *http.Request) {
 	return func(w http.ResponseWriter, r *http.Request) {
-		var err error
-		var certificateID int
-		if certificateID, err = getURLParamInt(r, "certificateID"); err != nil {
-			h.ResultErrorJSON(w, r, http.StatusBadRequest, err.Error(), nil)
-			return
-		}
-
-		item, err := certificate.GetByID(certificateID)
-		switch err {
-		case sql.ErrNoRows:
-			h.NotFound(w, r)
-		case nil:
+		logger.Debug("here")
+		if item := getCertificateFromRequest(w, r); item != nil {
 			// nolint: errcheck,gosec
 			item.Expand(getExpandFromContext(r))
 			h.ResultResponseJSON(w, r, http.StatusOK, item)
-		default:
-			h.ResultErrorJSON(w, r, http.StatusBadRequest, err.Error(), nil)
 		}
 	}
 }
@@ -64,27 +52,20 @@ func GetCertificate() func(http.ResponseWriter, *http.Request) {
 // Route: POST /certificates
 func CreateCertificate() func(http.ResponseWriter, *http.Request) {
 	return func(w http.ResponseWriter, r *http.Request) {
-		bodyBytes, _ := r.Context().Value(c.BodyCtxKey).([]byte)
+		var item certificate.Model
+		if fillObjectFromBody(w, r, "", &item) {
+			// Get userID from token
+			userID, _ := r.Context().Value(c.UserIDCtxKey).(int)
+			item.UserID = userID
 
-		var newCertificate certificate.Model
-		err := json.Unmarshal(bodyBytes, &newCertificate)
-		if err != nil {
-			h.ResultErrorJSON(w, r, http.StatusBadRequest, h.ErrInvalidPayload.Error(), nil)
-			return
+			if err := item.Save(); err != nil {
+				h.ResultErrorJSON(w, r, http.StatusBadRequest, fmt.Sprintf("Unable to save Certificate: %s", err.Error()), nil)
+				return
+			}
+
+			configureCertificate(item)
+			h.ResultResponseJSON(w, r, http.StatusOK, item)
 		}
-
-		// Get userID from token
-		userID, _ := r.Context().Value(c.UserIDCtxKey).(int)
-		newCertificate.UserID = userID
-
-		if err = newCertificate.Save(); err != nil {
-			h.ResultErrorJSON(w, r, http.StatusBadRequest, fmt.Sprintf("Unable to save Certificate: %s", err.Error()), nil)
-			return
-		}
-
-		configureCertificate(newCertificate)
-
-		h.ResultResponseJSON(w, r, http.StatusOK, newCertificate)
 	}
 }
 
@@ -92,49 +73,19 @@ func CreateCertificate() func(http.ResponseWriter, *http.Request) {
 // Route: PUT /certificates/{certificateID}
 func UpdateCertificate() func(http.ResponseWriter, *http.Request) {
 	return func(w http.ResponseWriter, r *http.Request) {
-		var err error
-		var certificateID int
-		if certificateID, err = getURLParamInt(r, "certificateID"); err != nil {
-			h.ResultErrorJSON(w, r, http.StatusBadRequest, err.Error(), nil)
-			return
-		}
-
-		certificateObject, err := certificate.GetByID(certificateID)
-		switch err {
-		case sql.ErrNoRows:
-			h.NotFound(w, r)
-		case nil:
+		if item := getCertificateFromRequest(w, r); item != nil {
 			// This is a special endpoint, as it needs to verify the schema payload
 			// based on the certificate type, without being given a type in the payload.
 			// The middleware would normally handle this.
-			bodyBytes, _ := r.Context().Value(c.BodyCtxKey).([]byte)
-			schemaErrors, jsonErr := middleware.CheckRequestSchema(r.Context(), schema.UpdateCertificate(certificateObject.Type), bodyBytes)
-			if jsonErr != nil {
-				h.ResultErrorJSON(w, r, http.StatusInternalServerError, fmt.Sprintf("Schema Fatal: %v", jsonErr), nil)
-				return
+			if fillObjectFromBody(w, r, schema.UpdateCertificate(item.Type), item) {
+				if err := item.Save(); err != nil {
+					h.ResultErrorJSON(w, r, http.StatusBadRequest, err.Error(), nil)
+					return
+				}
+
+				// configureCertificate(*item, item.Request)
+				h.ResultResponseJSON(w, r, http.StatusOK, item)
 			}
-
-			if len(schemaErrors) > 0 {
-				h.ResultSchemaErrorJSON(w, r, schemaErrors)
-				return
-			}
-
-			err := json.Unmarshal(bodyBytes, &certificateObject)
-			if err != nil {
-				h.ResultErrorJSON(w, r, http.StatusBadRequest, h.ErrInvalidPayload.Error(), nil)
-				return
-			}
-
-			if err = certificateObject.Save(); err != nil {
-				h.ResultErrorJSON(w, r, http.StatusBadRequest, err.Error(), nil)
-				return
-			}
-
-			configureCertificate(certificateObject)
-
-			h.ResultResponseJSON(w, r, http.StatusOK, certificateObject)
-		default:
-			h.ResultErrorJSON(w, r, http.StatusBadRequest, err.Error(), nil)
 		}
 	}
 }
@@ -143,31 +94,87 @@ func UpdateCertificate() func(http.ResponseWriter, *http.Request) {
 // Route: DELETE /certificates/{certificateID}
 func DeleteCertificate() func(http.ResponseWriter, *http.Request) {
 	return func(w http.ResponseWriter, r *http.Request) {
-		var err error
-		var certificateID int
-		if certificateID, err = getURLParamInt(r, "certificateID"); err != nil {
-			h.ResultErrorJSON(w, r, http.StatusBadRequest, err.Error(), nil)
-			return
-		}
-
-		item, err := certificate.GetByID(certificateID)
-		switch err {
-		case sql.ErrNoRows:
-			h.NotFound(w, r)
-		case nil:
-			// Ensure that this upstream isn't in use by a host
-			cnt := host.GetCertificateUseCount(certificateID)
+		if item := getCertificateFromRequest(w, r); item != nil {
+			cnt := host.GetCertificateUseCount(item.ID)
 			if cnt > 0 {
 				h.ResultErrorJSON(w, r, http.StatusBadRequest, "Cannot delete certificate that is in use by at least 1 host", nil)
 				return
 			}
 			h.ResultResponseJSON(w, r, http.StatusOK, item.Delete())
-		default:
-			h.ResultErrorJSON(w, r, http.StatusBadRequest, err.Error(), nil)
 		}
 	}
 }
 
+// RenewCertificate is self explanatory
+// Route: PUT /certificates/{certificateID}/renew
+func RenewCertificate() func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if item := getCertificateFromRequest(w, r); item != nil {
+			configureCertificate(*item)
+			h.ResultResponseJSON(w, r, http.StatusOK, true)
+		}
+	}
+}
+
+// DownloadCertificate is self explanatory
+// Route: PUT /certificates/{certificateID}/download
+func DownloadCertificate() func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if item := getCertificateFromRequest(w, r); item != nil {
+			// todo
+			h.ResultResponseJSON(w, r, http.StatusOK, "ok")
+		}
+	}
+}
+
+// getCertificateFromRequest has some reusable code for all endpoints that
+// have a certificate id in the url. it will write errors to the output.
+func getCertificateFromRequest(w http.ResponseWriter, r *http.Request) *certificate.Model {
+	var err error
+	var certificateID int
+	if certificateID, err = getURLParamInt(r, "certificateID"); err != nil {
+		h.ResultErrorJSON(w, r, http.StatusBadRequest, err.Error(), nil)
+		return nil
+	}
+
+	certificateObject, err := certificate.GetByID(certificateID)
+	switch err {
+	case sql.ErrNoRows:
+		h.NotFound(w, r)
+	case nil:
+		return &certificateObject
+	default:
+		h.ResultErrorJSON(w, r, http.StatusBadRequest, err.Error(), nil)
+	}
+	return nil
+}
+
+// getCertificateFromRequest has some reusable code for all endpoints that
+// have a certificate id in the url. it will write errors to the output.
+func fillObjectFromBody(w http.ResponseWriter, r *http.Request, validationSchema string, o interface{}) bool {
+	bodyBytes, _ := r.Context().Value(c.BodyCtxKey).([]byte)
+
+	if validationSchema != "" {
+		schemaErrors, jsonErr := middleware.CheckRequestSchema(r.Context(), validationSchema, bodyBytes)
+		if jsonErr != nil {
+			h.ResultErrorJSON(w, r, http.StatusInternalServerError, fmt.Sprintf("Schema Fatal: %v", jsonErr), nil)
+			return false
+		}
+		if len(schemaErrors) > 0 {
+			h.ResultSchemaErrorJSON(w, r, schemaErrors)
+			return false
+		}
+	}
+
+	err := json.Unmarshal(bodyBytes, o)
+	if err != nil {
+		h.ResultErrorJSON(w, r, http.StatusBadRequest, h.ErrInvalidPayload.Error(), nil)
+		return false
+	}
+
+	return true
+}
+
 func configureCertificate(c certificate.Model) {
 	err := jobqueue.AddJob(jobqueue.Job{
 		Name:   "RequestCertificate",

backend/internal/api/handler/sse_notification.go

@@ -0,0 +1,28 @@
+package handler
+
+import (
+	"encoding/json"
+	"net/http"
+
+	c "npm/internal/api/context"
+	h "npm/internal/api/http"
+	"npm/internal/serverevents"
+)
+
+// TestSSENotification specifically fires of a SSE message for testing purposes
+// Route: POST /sse-notification
+func TestSSENotification() func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		bodyBytes, _ := r.Context().Value(c.BodyCtxKey).([]byte)
+
+		var msg serverevents.Message
+		err := json.Unmarshal(bodyBytes, &msg)
+		if err != nil {
+			h.ResultErrorJSON(w, r, http.StatusBadRequest, h.ErrInvalidPayload.Error(), nil)
+			return
+		}
+
+		serverevents.Send(msg, "")
+		h.ResultResponseJSON(w, r, http.StatusOK, true)
+	}
+}

backend/internal/api/handler/tokens.go

@@ -65,7 +65,7 @@ func NewToken() func(http.ResponseWriter, *http.Request) {
 			return
 		}
 
-		if response, err := njwt.Generate(&userObj); err != nil {
+		if response, err := njwt.Generate(&userObj, false); err != nil {
 			h.ResultErrorJSON(w, r, http.StatusInternalServerError, err.Error(), nil)
 		} else {
 			h.ResultResponseJSON(w, r, http.StatusOK, response)
@@ -80,7 +80,34 @@ func RefreshToken() func(http.ResponseWriter, *http.Request) {
 		// TODO: Use your own methods to verify an existing user is
 		// able to refresh their token and then give them a new one
 		userObj, _ := user.GetByEmail("jc@jc21.com")
-		if response, err := njwt.Generate(&userObj); err != nil {
+		if response, err := njwt.Generate(&userObj, false); err != nil {
+			h.ResultErrorJSON(w, r, http.StatusInternalServerError, err.Error(), nil)
+		} else {
+			h.ResultResponseJSON(w, r, http.StatusOK, response)
+		}
+	}
+}
+
+// NewSSEToken will generate and return a very short lived token for
+// use by the /sse/* endpoint. It requires an app token to generate this
+// Route: POST /tokens/sse
+func NewSSEToken() func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		userID := r.Context().Value(c.UserIDCtxKey).(int)
+
+		// Find user
+		userObj, userErr := user.GetByID(userID)
+		if userErr != nil {
+			h.ResultErrorJSON(w, r, http.StatusBadRequest, errors.ErrInvalidLogin.Error(), nil)
+			return
+		}
+
+		if userObj.IsDisabled {
+			h.ResultErrorJSON(w, r, http.StatusUnauthorized, errors.ErrUserDisabled.Error(), nil)
+			return
+		}
+
+		if response, err := njwt.Generate(&userObj, true); err != nil {
 			h.ResultErrorJSON(w, r, http.StatusInternalServerError, err.Error(), nil)
 		} else {
 			h.ResultResponseJSON(w, r, http.StatusOK, response)

backend/internal/api/middleware/sse_auth.go

@@ -0,0 +1,34 @@
+package middleware
+
+import (
+	"net/http"
+
+	h "npm/internal/api/http"
+	"npm/internal/entity/user"
+
+	"github.com/go-chi/jwtauth"
+)
+
+// SSEAuth will validate that the jwt token provided to get this far is a SSE token
+// and that the user is enabled
+func SSEAuth(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		ctx := r.Context()
+
+		token, claims, err := jwtauth.FromContext(ctx)
+		if err != nil {
+			h.ResultErrorJSON(w, r, http.StatusUnauthorized, err.Error(), nil)
+			return
+		}
+
+		userID := int(claims["uid"].(float64))
+		_, enabled := user.IsEnabled(userID)
+		if token == nil || !token.Valid || !enabled || !claims.VerifyIssuer("sse", true) {
+			h.ResultErrorJSON(w, r, http.StatusUnauthorized, "Unauthorised", nil)
+			return
+		}
+
+		// Should be all good now
+		next.ServeHTTP(w, r)
+	})
+}

backend/internal/api/router.go

@@ -19,6 +19,7 @@ import (
 	"npm/internal/entity/upstream"
 	"npm/internal/entity/user"
 	"npm/internal/logger"
+	"npm/internal/serverevents"
 
 	"github.com/go-chi/chi"
 	chiMiddleware "github.com/go-chi/chi/middleware"
@@ -45,7 +46,6 @@ func NewRouter() http.Handler {
 		chiMiddleware.RealIP,
 		chiMiddleware.Recoverer,
 		chiMiddleware.Throttle(5),
-		chiMiddleware.Timeout(30*time.Second),
 		middleware.PrettyPrint,
 		middleware.Expansion,
 		middleware.DecodeAuth(),
@@ -61,8 +61,14 @@ func applyRoutes(r chi.Router) chi.Router {
 	r.NotFound(handler.NotFound())
 	r.MethodNotAllowed(handler.NotAllowed())
 
+	// SSE - requires a sse token as the `jwt` get parameter
+	// Exists inside /api but it's here so that we can skip the Timeout middleware
+	// that applies to other endpoints.
+	r.With(middleware.EnforceSetup(true), middleware.SSEAuth).
+		Mount("/api/sse", serverevents.Get())
+
 	// API
-	r.Route("/api", func(r chi.Router) {
+	r.With(chiMiddleware.Timeout(30*time.Second)).Route("/api", func(r chi.Router) {
 		r.Get("/", handler.Health())
 		r.Get("/schema", handler.Schema())
 		r.With(middleware.EnforceSetup(true), middleware.Enforce("")).
@@ -74,34 +80,54 @@ func applyRoutes(r chi.Router) chi.Router {
 				Post("/", handler.NewToken())
 			r.With(middleware.Enforce("")).
 				Get("/", handler.RefreshToken())
+			r.With(middleware.Enforce("")).
+				Post("/sse", handler.NewSSEToken())
 		})
 
 		// Users
 		r.Route("/users", func(r chi.Router) {
-			r.With(middleware.EnforceSetup(true), middleware.Enforce("")).Get("/{userID:(?:me)}", handler.GetUser())
-			r.With(middleware.EnforceSetup(true), middleware.Enforce(user.CapabilityUsersManage)).Get("/{userID:(?:[0-9]+)}", handler.GetUser())
-
-			r.With(middleware.EnforceSetup(true), middleware.Enforce(user.CapabilityUsersManage)).Delete("/{userID:(?:[0-9]+|me)}", handler.DeleteUser())
-			r.With(middleware.EnforceSetup(true), middleware.Enforce(user.CapabilityUsersManage)).With(middleware.Filters(user.GetFilterSchema())).
-				Get("/", handler.GetUsers())
-			r.With(middleware.EnforceRequestSchema(schema.CreateUser()), middleware.Enforce(user.CapabilityUsersManage)).
+			// Create - can be done in Setup stage as well
+			r.With(middleware.Enforce(user.CapabilityUsersManage), middleware.EnforceRequestSchema(schema.CreateUser())).
 				Post("/", handler.CreateUser())
 
-			r.With(middleware.EnforceSetup(true)).With(middleware.EnforceRequestSchema(schema.UpdateUser()), middleware.Enforce("")).
-				Put("/{userID:(?:me)}", handler.UpdateUser())
-			r.With(middleware.EnforceSetup(true)).With(middleware.EnforceRequestSchema(schema.UpdateUser()), middleware.Enforce(user.CapabilityUsersManage)).
-				Put("/{userID:(?:[0-9]+)}", handler.UpdateUser())
+			// Requires Setup stage to be completed
+			r.With(middleware.EnforceSetup(true)).Route("/", func(r chi.Router) {
+				// Get yourself, requires a login but no other permissions
+				r.With(middleware.Enforce("")).
+					Get("/{userID:(?:me)}", handler.GetUser())
 
-			// Auth
-			r.With(middleware.EnforceSetup(true)).With(middleware.EnforceRequestSchema(schema.SetAuth()), middleware.Enforce("")).
-				Post("/{userID:(?:me)}/auth", handler.SetAuth())
-			r.With(middleware.EnforceSetup(true)).With(middleware.EnforceRequestSchema(schema.SetAuth()), middleware.Enforce(user.CapabilityUsersManage)).
-				Post("/{userID:(?:[0-9]+)}/auth", handler.SetAuth())
+				// Update yourself, requires a login but no other permissions
+				r.With(middleware.Enforce(""), middleware.EnforceRequestSchema(schema.UpdateUser())).
+					Put("/{userID:(?:me)}", handler.UpdateUser())
+
+				r.With(middleware.Enforce(user.CapabilityUsersManage)).Route("/", func(r chi.Router) {
+					// List
+					r.With(middleware.Enforce(user.CapabilityUsersManage), middleware.Filters(user.GetFilterSchema())).
+						Get("/", handler.GetUsers())
+
+					// Specific Item
+					r.Get("/{userID:(?:[0-9]+)}", handler.GetUser())
+					r.Delete("/{userID:(?:[0-9]+|me)}", handler.DeleteUser())
+
+					// Update another user
+					r.With(middleware.EnforceRequestSchema(schema.UpdateUser())).
+						Put("/{userID:(?:[0-9]+)}", handler.UpdateUser())
+				})
+
+				// Auth - sets passwords
+				r.With(middleware.Enforce(""), middleware.EnforceRequestSchema(schema.SetAuth())).
+					Post("/{userID:(?:me)}/auth", handler.SetAuth())
+				r.With(middleware.Enforce(user.CapabilityUsersManage), middleware.EnforceRequestSchema(schema.SetAuth())).
+					Post("/{userID:(?:[0-9]+)}/auth", handler.SetAuth())
+			})
 		})
 
-		// Only available in debug mode: delete users without auth
+		// Only available in debug mode
 		if config.GetLogLevel() == logger.DebugLevel {
+			// delete users without auth
 			r.Delete("/users", handler.DeleteUsers())
+			// SSE test endpoints
+			r.Post("/sse-notification", handler.TestSSENotification())
 		}
 
 		// Settings
@@ -117,27 +143,48 @@ func applyRoutes(r chi.Router) chi.Router {
 
 		// Access Lists
 		r.With(middleware.EnforceSetup(true)).Route("/access-lists", func(r chi.Router) {
+			// List
 			r.With(middleware.Filters(accesslist.GetFilterSchema()), middleware.Enforce(user.CapabilityAccessListsView)).
 				Get("/", handler.GetAccessLists())
-			r.With(middleware.Enforce(user.CapabilityAccessListsView)).Get("/{accessListID:[0-9]+}", handler.GetAccessList())
-			r.With(middleware.Enforce(user.CapabilityAccessListsManage)).Delete("/{accessListID:[0-9]+}", handler.DeleteAccessList())
-			r.With(middleware.Enforce(user.CapabilityAccessListsManage)).With(middleware.EnforceRequestSchema(schema.CreateAccessList())).
+
+			// Create
+			r.With(middleware.Enforce(user.CapabilityAccessListsManage), middleware.EnforceRequestSchema(schema.CreateAccessList())).
 				Post("/", handler.CreateAccessList())
-			r.With(middleware.Enforce(user.CapabilityAccessListsManage)).With(middleware.EnforceRequestSchema(schema.UpdateAccessList())).
-				Put("/{accessListID:[0-9]+}", handler.UpdateAccessList())
+
+			// Specific Item
+			r.Route("/{accessListID:[0-9]+}", func(r chi.Router) {
+				r.With(middleware.Enforce(user.CapabilityAccessListsView)).
+					Get("/", handler.GetAccessList())
+				r.With(middleware.Enforce(user.CapabilityAccessListsManage)).Route("/", func(r chi.Router) {
+					r.Delete("/{accessListID:[0-9]+}", handler.DeleteAccessList())
+					r.With(middleware.EnforceRequestSchema(schema.UpdateAccessList())).
+						Put("/{accessListID:[0-9]+}", handler.UpdateAccessList())
+				})
+			})
 		})
 
 		// DNS Providers
 		r.With(middleware.EnforceSetup(true)).Route("/dns-providers", func(r chi.Router) {
-			r.With(middleware.Filters(dnsprovider.GetFilterSchema()), middleware.Enforce(user.CapabilityDNSProvidersView)).
+			// List
+			r.With(middleware.Enforce(user.CapabilityDNSProvidersView), middleware.Filters(dnsprovider.GetFilterSchema())).
 				Get("/", handler.GetDNSProviders())
-			r.With(middleware.Enforce(user.CapabilityDNSProvidersView)).Get("/{providerID:[0-9]+}", handler.GetDNSProvider())
-			r.With(middleware.Enforce(user.CapabilityDNSProvidersManage)).Delete("/{providerID:[0-9]+}", handler.DeleteDNSProvider())
-			r.With(middleware.Enforce(user.CapabilityDNSProvidersManage)).With(middleware.EnforceRequestSchema(schema.CreateDNSProvider())).
-				Post("/", handler.CreateDNSProvider())
-			r.With(middleware.Enforce(user.CapabilityDNSProvidersManage)).With(middleware.EnforceRequestSchema(schema.UpdateDNSProvider())).
-				Put("/{providerID:[0-9]+}", handler.UpdateDNSProvider())
 
+			// Create
+			r.With(middleware.Enforce(user.CapabilityDNSProvidersManage), middleware.EnforceRequestSchema(schema.CreateDNSProvider())).
+				Post("/", handler.CreateDNSProvider())
+
+			// Specific Item
+			r.Route("/{providerID:[0-9]+}", func(r chi.Router) {
+				r.With(middleware.Enforce(user.CapabilityDNSProvidersView)).
+					Get("/{providerID:[0-9]+}", handler.GetDNSProvider())
+				r.With(middleware.Enforce(user.CapabilityDNSProvidersManage)).Route("/", func(r chi.Router) {
+					r.Delete("/", handler.DeleteDNSProvider())
+					r.With(middleware.EnforceRequestSchema(schema.UpdateDNSProvider())).
+						Put("/{providerID:[0-9]+}", handler.UpdateDNSProvider())
+				})
+			})
+
+			// List Acme DNS Providers
 			r.With(middleware.Enforce(user.CapabilityDNSProvidersView)).Route("/acmesh", func(r chi.Router) {
 				r.Get("/{acmeshID:[a-z0-9_]+}", handler.GetAcmeshProvider())
 				r.Get("/", handler.GetAcmeshProviders())
@@ -146,81 +193,141 @@ func applyRoutes(r chi.Router) chi.Router {
 
 		// Certificate Authorities
 		r.With(middleware.EnforceSetup(true)).Route("/certificate-authorities", func(r chi.Router) {
+			// List
 			r.With(middleware.Enforce(user.CapabilityCertificateAuthoritiesView), middleware.Filters(certificateauthority.GetFilterSchema())).
 				Get("/", handler.GetCertificateAuthorities())
-			r.With(middleware.Enforce(user.CapabilityCertificateAuthoritiesView)).Get("/{caID:[0-9]+}", handler.GetCertificateAuthority())
-			r.With(middleware.Enforce(user.CapabilityCertificateAuthoritiesManage)).Delete("/{caID:[0-9]+}", handler.DeleteCertificateAuthority())
-			r.With(middleware.Enforce(user.CapabilityCertificateAuthoritiesManage)).With(middleware.EnforceRequestSchema(schema.CreateCertificateAuthority())).
+
+			// Create
+			r.With(middleware.Enforce(user.CapabilityCertificateAuthoritiesManage), middleware.EnforceRequestSchema(schema.CreateCertificateAuthority())).
 				Post("/", handler.CreateCertificateAuthority())
-			r.With(middleware.Enforce(user.CapabilityCertificateAuthoritiesManage)).With(middleware.EnforceRequestSchema(schema.UpdateCertificateAuthority())).
-				Put("/{caID:[0-9]+}", handler.UpdateCertificateAuthority())
+
+			// Specific Item
+			r.Route("/{caID:[0-9]+}", func(r chi.Router) {
+				r.With(middleware.Enforce(user.CapabilityCertificateAuthoritiesView)).
+					Get("/", handler.GetCertificateAuthority())
+				r.With(middleware.Enforce(user.CapabilityCertificateAuthoritiesManage)).Route("/", func(r chi.Router) {
+					r.Delete("/{caID:[0-9]+}", handler.DeleteCertificateAuthority())
+					r.With(middleware.EnforceRequestSchema(schema.UpdateCertificateAuthority())).
+						Put("/{caID:[0-9]+}", handler.UpdateCertificateAuthority())
+				})
+			})
 		})
 
 		// Certificates
 		r.With(middleware.EnforceSetup(true)).Route("/certificates", func(r chi.Router) {
+			// List
 			r.With(middleware.Enforce(user.CapabilityCertificatesView), middleware.Filters(certificate.GetFilterSchema())).
 				Get("/", handler.GetCertificates())
-			r.With(middleware.Enforce(user.CapabilityCertificatesView)).Get("/{certificateID:[0-9]+}", handler.GetCertificate())
-			r.With(middleware.Enforce(user.CapabilityCertificatesManage)).Delete("/{certificateID:[0-9]+}", handler.DeleteCertificate())
-			r.With(middleware.Enforce(user.CapabilityCertificatesManage)).With(middleware.EnforceRequestSchema(schema.CreateCertificate())).
+
+			// Create
+			r.With(middleware.Enforce(user.CapabilityCertificatesManage), middleware.EnforceRequestSchema(schema.CreateCertificate())).
 				Post("/", handler.CreateCertificate())
-				/*
-					r.With(middleware.EnforceRequestSchema(schema.UpdateCertificate())).
-						Put("/{certificateID:[0-9]+}", handler.UpdateCertificate())
-				*/
-			r.With(middleware.Enforce(user.CapabilityCertificatesManage)).Put("/{certificateID:[0-9]+}", handler.UpdateCertificate())
+
+			// Specific Item
+			r.Route("/{certificateID:[0-9]+}", func(r chi.Router) {
+				r.With(middleware.Enforce(user.CapabilityCertificatesView)).
+					Get("/", handler.GetCertificate())
+				r.With(middleware.Enforce(user.CapabilityCertificatesManage)).Route("/", func(r chi.Router) {
+					r.Delete("/", handler.DeleteCertificate())
+					r.Put("/", handler.UpdateCertificate())
+					// r.With(middleware.EnforceRequestSchema(schema.UpdateCertificate())).
+					//     Put("/", handler.UpdateCertificate())
+					r.Post("/renew", handler.RenewCertificate())
+					r.Get("/download", handler.DownloadCertificate())
+				})
+			})
 		})
 
 		// Hosts
 		r.With(middleware.EnforceSetup(true)).Route("/hosts", func(r chi.Router) {
+			// List
 			r.With(middleware.Enforce(user.CapabilityHostsView), middleware.Filters(host.GetFilterSchema())).
 				Get("/", handler.GetHosts())
-			r.With(middleware.Enforce(user.CapabilityHostsView)).Get("/{hostID:[0-9]+}", handler.GetHost())
-			r.With(middleware.Enforce(user.CapabilityHostsManage)).Delete("/{hostID:[0-9]+}", handler.DeleteHost())
-			r.With(middleware.Enforce(user.CapabilityHostsManage)).With(middleware.EnforceRequestSchema(schema.CreateHost())).
+
+			// Create
+			r.With(middleware.Enforce(user.CapabilityHostsManage), middleware.EnforceRequestSchema(schema.CreateHost())).
 				Post("/", handler.CreateHost())
-			r.With(middleware.Enforce(user.CapabilityHostsManage)).With(middleware.EnforceRequestSchema(schema.UpdateHost())).
-				Put("/{hostID:[0-9]+}", handler.UpdateHost())
-			r.With(middleware.Enforce(user.CapabilityHostsManage)).Get("/{hostID:[0-9]+}/nginx-config", handler.GetHostNginxConfig("json"))
-			r.With(middleware.Enforce(user.CapabilityHostsManage)).Get("/{hostID:[0-9]+}/nginx-config.txt", handler.GetHostNginxConfig("text"))
+
+			// Specific Item
+			r.Route("/{hostID:[0-9]+}", func(r chi.Router) {
+				r.With(middleware.Enforce(user.CapabilityHostsView)).
+					Get("/", handler.GetHost())
+				r.With(middleware.Enforce(user.CapabilityHostsManage)).Route("/", func(r chi.Router) {
+					r.Delete("/", handler.DeleteHost())
+					r.With(middleware.EnforceRequestSchema(schema.UpdateHost())).
+						Put("/", handler.UpdateHost())
+					r.Get("/nginx-config", handler.GetHostNginxConfig("json"))
+					r.Get("/nginx-config.txt", handler.GetHostNginxConfig("text"))
+				})
+			})
 		})
 
 		// Nginx Templates
 		r.With(middleware.EnforceSetup(true)).Route("/nginx-templates", func(r chi.Router) {
+			// List
 			r.With(middleware.Enforce(user.CapabilityNginxTemplatesView), middleware.Filters(nginxtemplate.GetFilterSchema())).
 				Get("/", handler.GetNginxTemplates())
-			r.With(middleware.Enforce(user.CapabilityNginxTemplatesView)).Get("/{templateID:[0-9]+}", handler.GetNginxTemplates())
-			r.With(middleware.Enforce(user.CapabilityNginxTemplatesManage)).Delete("/{templateID:[0-9]+}", handler.DeleteNginxTemplate())
-			r.With(middleware.Enforce(user.CapabilityNginxTemplatesManage)).With(middleware.EnforceRequestSchema(schema.CreateNginxTemplate())).
+
+			// Create
+			r.With(middleware.Enforce(user.CapabilityNginxTemplatesManage), middleware.EnforceRequestSchema(schema.CreateNginxTemplate())).
 				Post("/", handler.CreateNginxTemplate())
-			r.With(middleware.Enforce(user.CapabilityNginxTemplatesManage)).With(middleware.EnforceRequestSchema(schema.UpdateNginxTemplate())).
-				Put("/{templateID:[0-9]+}", handler.UpdateNginxTemplate())
+
+			// Specific Item
+			r.Route("/{templateID:[0-9]+}", func(r chi.Router) {
+				r.With(middleware.Enforce(user.CapabilityNginxTemplatesView)).
+					Get("/", handler.GetNginxTemplates())
+				r.With(middleware.Enforce(user.CapabilityHostsManage)).Route("/", func(r chi.Router) {
+					r.Delete("/", handler.DeleteNginxTemplate())
+					r.With(middleware.EnforceRequestSchema(schema.UpdateNginxTemplate())).
+						Put("/", handler.UpdateNginxTemplate())
+				})
+			})
 		})
 
 		// Streams
 		r.With(middleware.EnforceSetup(true)).Route("/streams", func(r chi.Router) {
+			// List
 			r.With(middleware.Enforce(user.CapabilityStreamsView), middleware.Filters(stream.GetFilterSchema())).
 				Get("/", handler.GetStreams())
-			r.With(middleware.Enforce(user.CapabilityStreamsView)).Get("/{hostID:[0-9]+}", handler.GetStream())
-			r.With(middleware.Enforce(user.CapabilityStreamsManage)).Delete("/{hostID:[0-9]+}", handler.DeleteStream())
-			r.With(middleware.Enforce(user.CapabilityStreamsManage)).With(middleware.EnforceRequestSchema(schema.CreateStream())).
+
+			// Create
+			r.With(middleware.Enforce(user.CapabilityStreamsManage), middleware.EnforceRequestSchema(schema.CreateStream())).
 				Post("/", handler.CreateStream())
-			r.With(middleware.Enforce(user.CapabilityStreamsManage)).With(middleware.EnforceRequestSchema(schema.UpdateStream())).
-				Put("/{hostID:[0-9]+}", handler.UpdateStream())
+
+			// Specific Item
+			r.Route("/{hostID:[0-9]+}", func(r chi.Router) {
+				r.With(middleware.Enforce(user.CapabilityStreamsView)).
+					Get("/", handler.GetStream())
+				r.With(middleware.Enforce(user.CapabilityHostsManage)).Route("/", func(r chi.Router) {
+					r.Delete("/", handler.DeleteStream())
+					r.With(middleware.EnforceRequestSchema(schema.UpdateStream())).
+						Put("/", handler.UpdateStream())
+				})
+			})
 		})
 
 		// Upstreams
 		r.With(middleware.EnforceSetup(true)).Route("/upstreams", func(r chi.Router) {
+			// List
 			r.With(middleware.Enforce(user.CapabilityHostsView), middleware.Filters(upstream.GetFilterSchema())).
 				Get("/", handler.GetUpstreams())
-			r.With(middleware.Enforce(user.CapabilityHostsView)).Get("/{upstreamID:[0-9]+}", handler.GetUpstream())
-			r.With(middleware.Enforce(user.CapabilityHostsManage)).Delete("/{upstreamID:[0-9]+}", handler.DeleteUpstream())
-			r.With(middleware.Enforce(user.CapabilityHostsManage)).With(middleware.EnforceRequestSchema(schema.CreateUpstream())).
+
+			// Create
+			r.With(middleware.Enforce(user.CapabilityHostsManage), middleware.EnforceRequestSchema(schema.CreateUpstream())).
 				Post("/", handler.CreateUpstream())
-			r.With(middleware.Enforce(user.CapabilityHostsManage)).With(middleware.EnforceRequestSchema(schema.UpdateUpstream())).
-				Put("/{upstreamID:[0-9]+}", handler.UpdateUpstream())
-			r.With(middleware.Enforce(user.CapabilityHostsManage)).Get("/{upstreamID:[0-9]+}/nginx-config", handler.GetUpstreamNginxConfig("json"))
-			r.With(middleware.Enforce(user.CapabilityHostsManage)).Get("/{upstreamID:[0-9]+}/nginx-config.txt", handler.GetUpstreamNginxConfig("text"))
+
+			// Specific Item
+			r.Route("/{upstreamID:[0-9]+}", func(r chi.Router) {
+				r.With(middleware.Enforce(user.CapabilityHostsView)).
+					Get("/", handler.GetUpstream())
+				r.With(middleware.Enforce(user.CapabilityHostsManage)).Route("/", func(r chi.Router) {
+					r.Delete("/", handler.DeleteUpstream())
+					r.With(middleware.EnforceRequestSchema(schema.UpdateUpstream())).
+						Put("/", handler.UpdateUpstream())
+					r.Get("/nginx-config", handler.GetUpstreamNginxConfig("json"))
+					r.Get("/nginx-config.txt", handler.GetUpstreamNginxConfig("text"))
+				})
+			})
 		})
 	})
 

backend/internal/api/server.go

@@ -6,6 +6,7 @@ import (
 	"time"
 
 	"npm/internal/logger"
+	"npm/internal/serverevents"
 )
 
 const httpPort = 3000
@@ -20,6 +21,8 @@ func StartServer() {
 		ReadHeaderTimeout: 3 * time.Second,
 	}
 
+	defer serverevents.Shutdown()
+
 	err := server.ListenAndServe()
 	if err != nil {
 		logger.Error("HttpListenError", err)

backend/internal/entity/certificate/model.go

@@ -14,6 +14,7 @@ import (
 	"npm/internal/entity/dnsprovider"
 	"npm/internal/entity/user"
 	"npm/internal/logger"
+	"npm/internal/serverevents"
 	"npm/internal/types"
 	"npm/internal/util"
 
@@ -123,6 +124,9 @@ func (m *Model) Delete() bool {
 	if err := m.Save(); err != nil {
 		return false
 	}
+
+	// todo: delete from acme.sh as well
+
 	return true
 }
 
@@ -239,6 +243,7 @@ func (m *Model) GetCertificateLocations() (string, string, string) {
 // Request makes a certificate request
 func (m *Model) Request() error {
 	logger.Info("Requesting certificate for: #%d %v", m.ID, m.Name)
+	serverevents.SendChange("certificates")
 
 	// nolint: errcheck, gosec
 	m.Expand([]string{"certificate-authority", "dns-provider"})
@@ -283,6 +288,7 @@ func (m *Model) Request() error {
 		return err
 	}
 
+	serverevents.SendChange("certificates")
 	logger.Info("Request for certificate for: #%d %v was completed", m.ID, m.Name)
 	return nil
 }

backend/internal/jwt/jwt.go

@@ -24,11 +24,16 @@ type GeneratedResponse struct {
 }
 
 // Generate will create a JWT
-func Generate(userObj *user.Model) (GeneratedResponse, error) {
+func Generate(userObj *user.Model, forSSE bool) (GeneratedResponse, error) {
 	var response GeneratedResponse
 
 	key, _ := GetPrivateKey()
 	expires := time.Now().AddDate(0, 0, 1) // 1 day
+	issuer := "api"
+
+	if forSSE {
+		issuer = "sse"
+	}
 
 	// Create the Claims
 	claims := UserJWTClaims{
@@ -37,7 +42,7 @@ func Generate(userObj *user.Model) (GeneratedResponse, error) {
 		jwt.StandardClaims{
 			IssuedAt:  time.Now().Unix(),
 			ExpiresAt: expires.Unix(),
-			Issuer:    "api",
+			Issuer:    issuer,
 		},
 	}
 

backend/internal/logger/logger.go

@@ -92,6 +92,11 @@ func Error(errorClass string, err error) {
 	logger.Error(errorClass, err)
 }
 
+// Get returns the logger
+func Get() *Logger {
+	return logger
+}
+
 // Configure logger and will return error if missing required fields.
 func (l *Logger) Configure(c *Config) error {
 	// ensure updates to the config are atomic

backend/internal/serverevents/sse.go

@@ -0,0 +1,74 @@
+package serverevents
+
+import (
+	"encoding/json"
+	"net/http"
+	"npm/internal/logger"
+
+	"github.com/jc21/go-sse"
+)
+
+var instance *sse.Server
+
+const defaultChannel = "changes"
+
+// Message is how we're going to send the data
+type Message struct {
+	Lang       string            `json:"lang,omitempty"`
+	LangParams map[string]string `json:"lang_params,omitempty"`
+	Type       string            `json:"type,omitempty"`
+	Affects    string            `json:"affects,omitempty"`
+}
+
+// Get will return a sse server
+func Get() *sse.Server {
+	if instance == nil {
+		instance = sse.NewServer(&sse.Options{
+			Logger: logger.Get(),
+			ChannelNameFunc: func(request *http.Request) string {
+				return defaultChannel // This is the channel for all updates regardless of visibility
+			},
+		})
+	}
+	return instance
+}
+
+// Shutdown will shutdown the server
+func Shutdown() {
+	if instance != nil {
+		instance.Shutdown()
+	}
+}
+
+// SendChange will send a specific change
+func SendChange(affects string) {
+	Send(Message{Affects: affects}, "")
+}
+
+// SendMessage will construct a message for the UI
+func SendMessage(typ, lang string, langParams map[string]string) {
+	Send(Message{
+		Type:       typ,
+		Lang:       lang,
+		LangParams: langParams,
+	}, "")
+}
+
+// Send will send a message
+func Send(msg Message, channel string) {
+	if channel == "" {
+		channel = defaultChannel
+	}
+	logger.Debug("SSE Sending: %+v", msg)
+	if data, err := json.Marshal(msg); err != nil {
+		logger.Error("SSEError", err)
+	} else {
+		Get().SendMessage(channel, sse.SimpleMessage(string(data)))
+	}
+}
+
+// TODO: if we end up implementing user visibility,
+// then we'll have to subscribe people to their own
+// channels and publish to all or some depending on visibility.
+// This means using a specific ChannelNameFunc that revolves
+// around the user and their visibility.

docker/rootfs/etc/nginx/conf.d/dev.conf

@@ -7,12 +7,18 @@ server {
 	}
 
 	location /api/ {
-		add_header            X-Served-By $host;
-		proxy_set_header Host $host;
-		proxy_set_header      X-Forwarded-Scheme $scheme;
-		proxy_set_header      X-Forwarded-Proto  $scheme;
-		proxy_set_header      X-Forwarded-For    $remote_addr;
-		proxy_pass            http://127.0.0.1:3000/api/;
+		add_header                X-Served-By $host;
+		chunked_transfer_encoding off;
+		proxy_buffering           off;
+		proxy_cache               off;
+		proxy_http_version        1.1;
+		proxy_set_header          Host $host;
+		proxy_set_header          Connection '';
+		proxy_set_header          X-Forwarded-Scheme $scheme;
+		proxy_set_header          X-Forwarded-Proto  $scheme;
+		proxy_set_header          X-Forwarded-For    $remote_addr;
+		proxy_set_header          X-Accel-Buffering  no;
+		proxy_pass                http://127.0.0.1:3000/api/;
 	}
 
 	location ~ .html {

docker/rootfs/etc/nginx/conf.d/production.conf

@@ -4,11 +4,17 @@ server {
 	server_name nginxproxymanager;
 
 	location / {
-		add_header            X-Served-By $host;
-		proxy_set_header Host $host;
-		proxy_set_header      X-Forwarded-Scheme $scheme;
-		proxy_set_header      X-Forwarded-Proto  $scheme;
-		proxy_set_header      X-Forwarded-For    $remote_addr;
-		proxy_pass            http://localhost:3000/;
+		add_header                X-Served-By $host;
+		chunked_transfer_encoding off;
+		proxy_buffering           off;
+		proxy_cache               off;
+		proxy_http_version        1.1;
+		proxy_set_header Host     $host;
+		proxy_set_header          Connection '';
+		proxy_set_header          X-Forwarded-Scheme $scheme;
+		proxy_set_header          X-Forwarded-Proto  $scheme;
+		proxy_set_header          X-Forwarded-For    $remote_addr;
+		proxy_set_header          X-Accel-Buffering  no;
+		proxy_pass                http://localhost:3000/;
 	}
 }

frontend/src/api/npm/getSSEToken.ts

@@ -0,0 +1,14 @@
+import * as api from "./base";
+import { TokenResponse } from "./responseTypes";
+
+export async function getSSEToken(
+	abortController?: AbortController,
+): Promise<TokenResponse> {
+	const { result } = await api.post(
+		{
+			url: "/tokens/sse",
+		},
+		abortController,
+	);
+	return result;
+}

frontend/src/api/npm/index.ts

@@ -14,6 +14,7 @@ export * from "./getHealth";
 export * from "./getHosts";
 export * from "./getNginxTemplates";
 export * from "./getSettings";
+export * from "./getSSEToken";
 export * from "./getToken";
 export * from "./getUpstreamNginxConfig";
 export * from "./getUpstreams";
@@ -22,6 +23,7 @@ export * from "./getUsers";
 export * from "./helpers";
 export * from "./models";
 export * from "./refreshToken";
+export * from "./renewCertificate";
 export * from "./responseTypes";
 export * from "./setAuth";
 export * from "./setCertificate";

frontend/src/api/npm/models.ts

@@ -165,3 +165,10 @@ export interface Upstream {
 	advancedConfig: string;
 	isDisabled: boolean;
 }
+
+export interface SSEMessage {
+	lang?: string;
+	langParams?: string;
+	type?: "info" | "warning" | "success" | "error" | "loading";
+	affects?: string | string[];
+}

frontend/src/api/npm/renewCertificate.ts

@@ -0,0 +1,15 @@
+import * as api from "./base";
+import { Certificate } from "./models";
+
+export async function renewCertificate(
+	id: number,
+	abortController?: AbortController,
+): Promise<Certificate> {
+	const { result } = await api.post(
+		{
+			url: `/certificates/${id}/renew`,
+		},
+		abortController,
+	);
+	return result;
+}

frontend/src/components/SiteWrapper.tsx

@@ -1,12 +1,56 @@
-import { ReactNode } from "react";
+import { useEffect, ReactNode } from "react";
 
-import { Box, Container } from "@chakra-ui/react";
+import { Box, Container, useToast } from "@chakra-ui/react";
+import { getSSEToken, SSEMessage } from "api/npm";
 import { Footer, Navigation } from "components";
+import { intl } from "locale";
+import AuthStore from "modules/AuthStore";
+import { useQueryClient } from "react-query";
 
 interface Props {
 	children?: ReactNode;
 }
 function SiteWrapper({ children }: Props) {
+	const queryClient = useQueryClient();
+	const toast = useToast();
+
+	// TODO: fix bug where this will fail if the browser is kept open longer
+	// than the expiry of the sse token
+	useEffect(() => {
+		async function fetchData() {
+			const response = await getSSEToken();
+			const eventSource = new EventSource(
+				`/api/sse/changes?jwt=${response.token}`,
+			);
+			eventSource.onmessage = (e: any) => {
+				const j: SSEMessage = JSON.parse(e.data);
+				if (j) {
+					if (j.affects) {
+						queryClient.invalidateQueries(j.affects);
+					}
+					if (j.type) {
+						toast({
+							description: intl.formatMessage({ id: j.lang }),
+							status: j.type || "info",
+							position: "top",
+							duration: 3000,
+							isClosable: true,
+						});
+					}
+				}
+			};
+			eventSource.onerror = (e) => {
+				console.error("SSE EventSource failed:", e);
+			};
+			return () => {
+				eventSource.close();
+			};
+		}
+		if (AuthStore.token) {
+			fetchData();
+		}
+	}, [queryClient, toast]);
+
 	return (
 		<Box display="flex" flexDir="column" height="100vh">
 			<Box flexShrink={0}>

frontend/src/locale/src/de.json

@@ -71,6 +71,9 @@
 	"certificate.create": {
 		"defaultMessage": "Zertifikat erstellen"
 	},
+	"certificate.renewal-requested": {
+		"defaultMessage": "Renewal has been queued"
+	},
 	"certificates.title": {
 		"defaultMessage": "Zertifikate"
 	},

frontend/src/locale/src/en.json

@@ -347,6 +347,9 @@
 	"certificate.create": {
 		"defaultMessage": "Create Certificate"
 	},
+	"certificate.renewal-requested": {
+		"defaultMessage": "Renewal has been queued"
+	},
 	"certificates.title": {
 		"defaultMessage": "Certificates"
 	},

frontend/src/locale/src/fa.json

@@ -71,6 +71,9 @@
 	"certificate.create": {
 		"defaultMessage": "ایجاد گواهی"
 	},
+	"certificate.renewal-requested": {
+		"defaultMessage": "Renewal has been queued"
+	},
 	"certificates.title": {
 		"defaultMessage": "گواهینامه ها"
 	},

frontend/src/pages/Certificates/Table.tsx

@@ -25,6 +25,7 @@ export interface TableProps {
 	sortBy: TableSortBy[];
 	filters: TableFilter[];
 	onTableEvent: any;
+	onRenewal: (id: number) => void;
 }
 function Table({
 	data,
@@ -32,6 +33,7 @@ function Table({
 	onTableEvent,
 	sortBy,
 	filters,
+	onRenewal,
 }: TableProps) {
 	const [editId, setEditId] = useState(0);
 	const [columns, tableData] = useMemo(() => {
@@ -85,7 +87,7 @@ function Table({
 						title: intl.formatMessage({
 							id: "action.renew",
 						}),
-						onClick: (e: any, { id }: any) => alert(id),
+						onClick: (e: any, { id }: any) => onRenewal(id),
 						icon: <FiRefreshCw />,
 						disabled: (data: any) =>
 							data.type !== "dns" && data.type !== "http",
@@ -110,7 +112,7 @@ function Table({
 			},
 		];
 		return [columns, data];
-	}, [data]);
+	}, [data, onRenewal]);
 
 	const tableInstance = useTable(
 		{

frontend/src/pages/Certificates/TableWrapper.tsx

@@ -1,9 +1,11 @@
 import { useEffect, useReducer, useState } from "react";
 
-import { Alert, AlertIcon } from "@chakra-ui/react";
+import { Alert, AlertIcon, useToast } from "@chakra-ui/react";
+import { renewCertificate } from "api/npm";
 import { EmptyList, SpinnerPage, tableEventReducer } from "components";
 import { useCertificates } from "hooks";
 import { intl } from "locale";
+import { useQueryClient } from "react-query";
 
 import Table from "./Table";
 
@@ -19,6 +21,9 @@ const initialState = {
 	filters: [],
 };
 function TableWrapper() {
+	const toast = useToast();
+	const queryClient = useQueryClient();
+
 	const [{ offset, limit, sortBy, filters }, dispatch] = useReducer(
 		tableEventReducer,
 		initialState,
@@ -36,6 +41,32 @@ function TableWrapper() {
 		setTableData(data as any);
 	}, [data]);
 
+	const renewCert = async (id: number) => {
+		try {
+			await renewCertificate(id);
+			toast({
+				description: intl.formatMessage({
+					id: `certificate.renewal-requested`,
+				}),
+				status: "info",
+				position: "top",
+				duration: 3000,
+				isClosable: true,
+			});
+			setTimeout(() => {
+				queryClient.invalidateQueries("certificates");
+			}, 500);
+		} catch (err: any) {
+			toast({
+				description: err.message,
+				status: "error",
+				position: "top",
+				duration: 3000,
+				isClosable: true,
+			});
+		}
+	};
+
 	if (isFetching || isLoading || !tableData) {
 		return <SpinnerPage />;
 	}
@@ -76,6 +107,7 @@ function TableWrapper() {
 			sortBy={sortBy}
 			filters={filters}
 			onTableEvent={dispatch}
+			onRenewal={renewCert}
 		/>
 	);
 }

frontend/tsconfig.json

@@ -25,4 +25,4 @@
   "include": [
     "src"
   ]
-}
+}