add globals to be able to modify error messages and statuses

alexferl · Jan 18, 2024 · 2379afe · 2379afe
1 parent 5793c48
commit 2379afe
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Showing 6 changed files with 77 additions and 104 deletions.
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.3.0
+    rev: v4.5.0
     hooks:
       - id: trailing-whitespace
       - id: end-of-file-fixer

diff --git a/globals.go b/globals.go
@@ -0,0 +1,28 @@
+package jwt
+
+import (
+	"net/http"
+)
+
+var (
+	ErrAuthorizationHeader        = "authorization header malformed"
+	ErrAuthorizationHeaderStatus  = http.StatusUnauthorized
+	ErrAuthorizationScheme        = "authorization scheme not supported"
+	ErrAuthorizationSchemeStatus  = http.StatusUnauthorized
+	ErrBodyMissingKey             = "body is missing refresh token key"
+	ErrBodyMissingKeyStatus       = http.StatusUnprocessableEntity
+	ErrMethodNotAllowed           = "method not allowed"
+	ErrMethodNotAllowedStatus     = http.StatusMethodNotAllowed
+	ErrRequestMalformed           = "request malformed"
+	ErrRequestMalformedStatus     = http.StatusBadRequest
+	ErrRouteNotFound              = "route not found"
+	ErrRouteNotFoundStatus        = http.StatusNotFound
+	ErrTokenExpired               = "token is expired"
+	ErrTokenExpiredStatus         = http.StatusUnauthorized
+	ErrTokenInvalid               = "token is invalid"
+	ErrTokenInvalidStatus         = http.StatusUnauthorized
+	ErrTokenInvalidIssuedAt       = "token has invalid issued at"
+	ErrTokenInvalidIssuedAtStatus = http.StatusUnauthorized
+	ErrTokenNotYetValid           = "token is not yet valid"
+	ErrTokenNotYetValidStatus     = http.StatusUnauthorized
+)
diff --git a/go.mod b/go.mod
@@ -1,10 +1,10 @@
 module github.com/alexferl/echo-jwt
 
-go 1.19
+go 1.21
 
 require (
-	github.com/labstack/echo/v4 v4.11.1
-	github.com/lestrrat-go/jwx/v2 v2.0.13
+	github.com/labstack/echo/v4 v4.11.4
+	github.com/lestrrat-go/jwx/v2 v2.0.19
 	github.com/stretchr/testify v1.8.4
 )
 
@@ -13,22 +13,22 @@ require (
 	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
 	github.com/golang-jwt/jwt v3.2.2+incompatible // indirect
-	github.com/labstack/gommon v0.4.0 // indirect
+	github.com/labstack/gommon v0.4.2 // indirect
 	github.com/lestrrat-go/blackmagic v1.0.2 // indirect
 	github.com/lestrrat-go/httpcc v1.0.1 // indirect
 	github.com/lestrrat-go/httprc v1.0.4 // indirect
 	github.com/lestrrat-go/iter v1.0.2 // indirect
 	github.com/lestrrat-go/option v1.0.1 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
-	github.com/mattn/go-isatty v0.0.19 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/segmentio/asm v1.2.0 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v1.2.2 // indirect
-	golang.org/x/crypto v0.14.0 // indirect
-	golang.org/x/net v0.17.0 // indirect
-	golang.org/x/sys v0.13.0 // indirect
-	golang.org/x/text v0.13.0 // indirect
-	golang.org/x/time v0.3.0 // indirect
+	golang.org/x/crypto v0.18.0 // indirect
+	golang.org/x/net v0.20.0 // indirect
+	golang.org/x/sys v0.16.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/time v0.5.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
@@ -1,17 +1,16 @@
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/decred/dcrd/crypto/blake256 v1.0.1/go.mod h1:2OfgNZ5wDpcsFmHmCK5gZTPcCXqlm2ArzUIkw9czNJo=
 github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 h1:8UrgZ3GkP4i/CLijOJx79Yu+etlyjdBU4sfcs2WYQMs=
 github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0/go.mod h1:v57UDF4pDQJcEfFUCRop3lJL149eHGSe9Jvczhzjo/0=
 github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU=
 github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
 github.com/golang-jwt/jwt v3.2.2+incompatible h1:IfV12K8xAKAnZqdXVzCZ+TOjboZ2keLg81eXfW3O+oY=
 github.com/golang-jwt/jwt v3.2.2+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
-github.com/labstack/echo/v4 v4.11.1 h1:dEpLU2FLg4UVmvCGPuk/APjlH6GDpbEPti61srUUUs4=
-github.com/labstack/echo/v4 v4.11.1/go.mod h1:YuYRTSM3CHs2ybfrL8Px48bO6BAnYIN4l8wSTMP6BDQ=
-github.com/labstack/gommon v0.4.0 h1:y7cvthEAEbU0yHOf4axH8ZG2NH8knB9iNSoTO8dyIk8=
-github.com/labstack/gommon v0.4.0/go.mod h1:uW6kP17uPlLJsD3ijUYn3/M5bAxtlZhMI6m3MFxTMTM=
+github.com/labstack/echo/v4 v4.11.4 h1:vDZmA+qNeh1pd/cCkEicDMrjtrnMGQ1QFI9gWN1zGq8=
+github.com/labstack/echo/v4 v4.11.4/go.mod h1:noh7EvLwqDsmh/X/HWKPUl1AjzJrhyptRyEbQJfxen8=
+github.com/labstack/gommon v0.4.2 h1:F8qTUNXgG1+6WQmqoUWnz8WiEU60mXVVw0P4ht1WRA0=
+github.com/labstack/gommon v0.4.2/go.mod h1:QlUFxVM+SNXhDL/Z7YhocGIBYOiwB0mXm1+1bAPHPyU=
 github.com/lestrrat-go/blackmagic v1.0.2 h1:Cg2gVSc9h7sz9NOByczrbUvLopQmXrfFx//N+AkAr5k=
 github.com/lestrrat-go/blackmagic v1.0.2/go.mod h1:UrEqBzIR2U6CnzVyUtfM6oZNMt/7O7Vohk2J0OGSAtU=
 github.com/lestrrat-go/httpcc v1.0.1 h1:ydWCStUeJLkpYyjLDHihupbn2tYmZ7m22BGkcvZZrIE=
@@ -20,92 +19,42 @@ github.com/lestrrat-go/httprc v1.0.4 h1:bAZymwoZQb+Oq8MEbyipag7iSq6YIga8Wj6GOiJG
 github.com/lestrrat-go/httprc v1.0.4/go.mod h1:mwwz3JMTPBjHUkkDv/IGJ39aALInZLrhBp0X7KGUZlo=
 github.com/lestrrat-go/iter v1.0.2 h1:gMXo1q4c2pHmC3dn8LzRhJfP1ceCbgSiT9lUydIzltI=
 github.com/lestrrat-go/iter v1.0.2/go.mod h1:Momfcq3AnRlRjI5b5O8/G5/BvpzrhoFTZcn06fEOPt4=
-github.com/lestrrat-go/jwx/v2 v2.0.13 h1:XdxzJbudGaHEoNmyJACAT8aFCB+DmviiaiMoZwuJoUo=
-github.com/lestrrat-go/jwx/v2 v2.0.13/go.mod h1:UzXMzcV99p9/xe1JsIb336NJDGXLsleR+Qj3ucEDtfI=
-github.com/lestrrat-go/option v1.0.0/go.mod h1:5ZHFbivi4xwXxhxY9XHDe2FHo6/Z7WWmtT7T5nBBp3I=
+github.com/lestrrat-go/jwx/v2 v2.0.19 h1:ekv1qEZE6BVct89QA+pRF6+4pCpfVrOnEJnTnT4RXoY=
+github.com/lestrrat-go/jwx/v2 v2.0.19/go.mod h1:l3im3coce1lL2cDeAjqmaR+Awx+X8Ih+2k8BuHNJ4CU=
 github.com/lestrrat-go/option v1.0.1 h1:oAzP2fvZGQKWkvHa1/SAcFolBEca1oN+mQ7eooNBEYU=
 github.com/lestrrat-go/option v1.0.1/go.mod h1:5ZHFbivi4xwXxhxY9XHDe2FHo6/Z7WWmtT7T5nBBp3I=
-github.com/mattn/go-colorable v0.1.11/go.mod h1:u5H1YNBxpqRaxsYJYSkiCWKzEfiAb1Gb520KVy5xxl4=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
 github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
-github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
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 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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 github.com/segmentio/asm v1.2.0 h1:9BQrFxC+YOHJlTlHGkTrFWf59nbL3XnCoFLTwDCI7ys=
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 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
-github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
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-github.com/valyala/fasttemplate v1.2.1/go.mod h1:KHLXt3tVN2HBp8eijSv/kGJopbvo7S+qRAEEKiv+SiQ=
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-github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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-golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
-golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
+golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+golang.org/x/time v0.5.0 h1:o7cqy6amK/52YcAKIPlM3a+Fpj35zvRj2TP+e1xFSfk=
+golang.org/x/time v0.5.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/jwt.go b/jwt.go
@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"encoding/json"
 	"errors"
-	"fmt"
 	"io"
 	"net/http"
 	"strings"
@@ -35,7 +34,7 @@ type Config struct {
 
 	// Key defines the RSA key used to verify tokens.
 	// Required.
-	Key interface{}
+	Key any
 
 	// ExemptRoutes defines routes and methods that don't require tokens.
 	// Optional. Defaults to /login [POST].
@@ -148,7 +147,7 @@ var DefaultConfig = Config{
 	},
 }
 
-func JWT(key interface{}) echo.MiddlewareFunc {
+func JWT(key any) echo.MiddlewareFunc {
 	c := DefaultConfig
 	c.ExemptRoutes = DefaultConfig.ExemptRoutes
 	c.ExemptMethods = DefaultConfig.ExemptMethods
@@ -247,7 +246,7 @@ func JWTWithConfig(config Config) echo.MiddlewareFunc {
 				encodedToken = encodedTokenFromCookie(c, config.RefreshToken.CookieKey)
 				if encodedToken == "" {
 					if c.Request().Header.Get("Content-Type") != config.RefreshToken.BodyMIMEType {
-						return echo.NewHTTPError(http.StatusBadRequest, "Request malformed")
+						return echo.NewHTTPError(ErrRequestMalformedStatus, ErrRequestMalformed)
 					}
 
 					// there's always a body, so we don't
@@ -257,13 +256,12 @@ func JWTWithConfig(config Config) echo.MiddlewareFunc {
 					var m map[string]any
 					err := json.Unmarshal(data, &m)
 					if err != nil {
-						return echo.NewHTTPError(http.StatusBadRequest, "Request malformed")
+						return echo.NewHTTPError(ErrRequestMalformedStatus, ErrRequestMalformed)
 					}
 
 					key := config.RefreshToken.BodyKey
 					if val, ok := m[key]; !ok {
-						msg := fmt.Sprintf("Body missing '%s' key", key)
-						return echo.NewHTTPError(http.StatusUnprocessableEntity, msg)
+						return echo.NewHTTPError(ErrBodyMissingKeyStatus, ErrBodyMissingKey)
 					} else {
 						encodedToken = val.(string)
 					}
@@ -279,13 +277,11 @@ func JWTWithConfig(config Config) echo.MiddlewareFunc {
 					if header != "" {
 						split := strings.Split(header, " ")
 						if strings.ToLower(split[0]) != strings.ToLower(config.AuthScheme) {
-							text := "Authorization scheme not supported"
-							return echo.NewHTTPError(http.StatusUnauthorized, text)
+							return echo.NewHTTPError(ErrAuthorizationSchemeStatus, ErrAuthorizationScheme)
 						}
 
 						if len(split) < 2 {
-							text := "Authorization header malformed"
-							return echo.NewHTTPError(http.StatusUnauthorized, text)
+							return echo.NewHTTPError(ErrAuthorizationHeaderStatus, ErrAuthorizationHeader)
 						}
 
 						encodedToken = split[1]
@@ -310,17 +306,17 @@ func JWTWithConfig(config Config) echo.MiddlewareFunc {
 				}
 
 				if routeExists && !methodMatches {
-					return echo.NewHTTPError(http.StatusMethodNotAllowed, "Method not allowed")
+					return echo.NewHTTPError(ErrMethodNotAllowedStatus, ErrMethodNotAllowed)
 				}
 
 				if !routeExists {
-					return echo.NewHTTPError(http.StatusNotFound, "Route does not exist")
+					return echo.NewHTTPError(ErrRouteNotFoundStatus, ErrRouteNotFound)
 				}
 
 				if !errors.Is(err, errTokenParse) {
 					return err
 				} else {
-					return echo.NewHTTPError(http.StatusUnauthorized, "Token invalid")
+					return echo.NewHTTPError(ErrTokenInvalidStatus, ErrTokenInvalid)
 				}
 			}
 
@@ -357,16 +353,16 @@ func encodedTokenFromCookie(c echo.Context, key string) string {
 func parseToken(encodedToken string, options []jwt.ParseOption) (jwt.Token, error) {
 	token, err := jwt.Parse([]byte(encodedToken), options...)
 	if err != nil {
-		if err == jwt.ErrTokenExpired() {
-			return nil, echo.NewHTTPError(http.StatusUnauthorized, "Token is expired")
+		if errors.Is(err, jwt.ErrTokenExpired()) {
+			return nil, echo.NewHTTPError(ErrTokenExpiredStatus, ErrTokenExpired)
 		}
 
-		if err == jwt.ErrInvalidIssuedAt() {
-			return nil, echo.NewHTTPError(http.StatusUnauthorized, "Token has invalid issued at")
+		if errors.Is(err, jwt.ErrInvalidIssuedAt()) {
+			return nil, echo.NewHTTPError(ErrTokenInvalidIssuedAtStatus, ErrTokenInvalidIssuedAt)
 		}
 
-		if err == jwt.ErrTokenNotYetValid() {
-			return nil, echo.NewHTTPError(http.StatusUnauthorized, "Token is not yet valid")
+		if errors.Is(err, jwt.ErrTokenNotYetValid()) {
+			return nil, echo.NewHTTPError(ErrTokenNotYetValidStatus, ErrTokenNotYetValid)
 		}
 
 		return nil, errTokenParse

diff --git a/jwt_test.go b/jwt_test.go
@@ -240,28 +240,28 @@ func TestJWTWithConfig_RefreshToken_Malformed(t *testing.T) {
 			"wrong",
 			bytes.NewBuffer([]byte(fmt.Sprintf(`{"refresh_token": "%s"}`, token))),
 			http.StatusBadRequest,
-			"Request malformed",
+			ErrRequestMalformed,
 		},
 		{
 			"no body",
 			echo.MIMEApplicationJSON,
 			&bytes.Buffer{},
 			http.StatusBadRequest,
-			"Request malformed",
+			ErrRequestMalformed,
 		},
 		{
 			"malformed json body",
 			echo.MIMEApplicationJSON,
 			bytes.NewBuffer([]byte("{]")),
 			http.StatusBadRequest,
-			"Request malformed",
+			ErrRequestMalformed,
 		},
 		{
 			"missing body key",
 			echo.MIMEApplicationJSON,
 			bytes.NewBuffer([]byte(fmt.Sprintf(`{"wrong": "%s"}`, token))),
 			http.StatusUnprocessableEntity,
-			"Body missing 'refresh_token' key",
+			ErrBodyMissingKey,
 		},
 	}