daemon: move maskCredentials to config package

This allows the utility to be used in other places.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

daemon/config/config.go

@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"net"
+	"net/url"
 	"os"
 	"reflect"
 	"strings"
@@ -645,3 +646,13 @@ func (conf *Config) GetDefaultRuntimeName() string {
 
 	return rt
 }
+
+// MaskCredentials masks credentials that are in an URL.
+func MaskCredentials(rawURL string) string {
+	parsedURL, err := url.Parse(rawURL)
+	if err != nil || parsedURL.User == nil {
+		return rawURL
+	}
+	parsedURL.User = url.UserPassword("xxxxx", "xxxxx")
+	return parsedURL.String()
+}

daemon/config/config_test.go

@@ -578,3 +578,49 @@ func TestReloadWithDuplicateLabels(t *testing.T) {
 	err := Reload(configFile, flags, func(c *Config) {})
 	assert.Check(t, err)
 }
+
+func TestMaskURLCredentials(t *testing.T) {
+	tests := []struct {
+		rawURL    string
+		maskedURL string
+	}{
+		{
+			rawURL:    "",
+			maskedURL: "",
+		}, {
+			rawURL:    "invalidURL",
+			maskedURL: "invalidURL",
+		}, {
+			rawURL:    "http://proxy.example.com:80/",
+			maskedURL: "http://proxy.example.com:80/",
+		}, {
+			rawURL:    "http://USER:PASSWORD@proxy.example.com:80/",
+			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/",
+		}, {
+			rawURL:    "http://PASSWORD:PASSWORD@proxy.example.com:80/",
+			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/",
+		}, {
+			rawURL:    "http://USER:@proxy.example.com:80/",
+			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/",
+		}, {
+			rawURL:    "http://:PASSWORD@proxy.example.com:80/",
+			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/",
+		}, {
+			rawURL:    "http://USER@docker:password@proxy.example.com:80/",
+			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/",
+		}, {
+			rawURL:    "http://USER%40docker:password@proxy.example.com:80/",
+			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/",
+		}, {
+			rawURL:    "http://USER%40docker:pa%3Fsword@proxy.example.com:80/",
+			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/",
+		}, {
+			rawURL:    "http://USER%40docker:pa%3Fsword@proxy.example.com:80/hello%20world",
+			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/hello%20world",
+		},
+	}
+	for _, test := range tests {
+		maskedURL := MaskCredentials(test.rawURL)
+		assert.Equal(t, maskedURL, test.maskedURL)
+	}
+}

daemon/info.go

@@ -2,7 +2,6 @@ package daemon // import "github.com/docker/docker/daemon"
 
 import (
 	"fmt"
-	"net/url"
 	"os"
 	"runtime"
 	"strings"
@@ -64,8 +63,8 @@ func (daemon *Daemon) SystemInfo() *types.Info {
 		Labels:             daemon.configStore.Labels,
 		ExperimentalBuild:  daemon.configStore.Experimental,
 		ServerVersion:      dockerversion.Version,
-		HTTPProxy:          maskCredentials(getEnvAny("HTTP_PROXY", "http_proxy")),
-		HTTPSProxy:         maskCredentials(getEnvAny("HTTPS_PROXY", "https_proxy")),
+		HTTPProxy:          config.MaskCredentials(getEnvAny("HTTP_PROXY", "http_proxy")),
+		HTTPSProxy:         config.MaskCredentials(getEnvAny("HTTPS_PROXY", "https_proxy")),
 		NoProxy:            getEnvAny("NO_PROXY", "no_proxy"),
 		LiveRestoreEnabled: daemon.configStore.LiveRestoreEnabled,
 		Isolation:          daemon.defaultIsolation,
@@ -289,16 +288,6 @@ func osVersion() (version string) {
 	return version
 }
 
-func maskCredentials(rawURL string) string {
-	parsedURL, err := url.Parse(rawURL)
-	if err != nil || parsedURL.User == nil {
-		return rawURL
-	}
-	parsedURL.User = url.UserPassword("xxxxx", "xxxxx")
-	maskedURL := parsedURL.String()
-	return maskedURL
-}
-
 func getEnvAny(names ...string) string {
 	for _, n := range names {
 		if val := os.Getenv(n); val != "" {

daemon/info_test.go

@@ -1,53 +0,0 @@
-package daemon
-
-import (
-	"testing"
-
-	"gotest.tools/v3/assert"
-)
-
-func TestMaskURLCredentials(t *testing.T) {
-	tests := []struct {
-		rawURL    string
-		maskedURL string
-	}{
-		{
-			rawURL:    "",
-			maskedURL: "",
-		}, {
-			rawURL:    "invalidURL",
-			maskedURL: "invalidURL",
-		}, {
-			rawURL:    "http://proxy.example.com:80/",
-			maskedURL: "http://proxy.example.com:80/",
-		}, {
-			rawURL:    "http://USER:PASSWORD@proxy.example.com:80/",
-			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/",
-		}, {
-			rawURL:    "http://PASSWORD:PASSWORD@proxy.example.com:80/",
-			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/",
-		}, {
-			rawURL:    "http://USER:@proxy.example.com:80/",
-			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/",
-		}, {
-			rawURL:    "http://:PASSWORD@proxy.example.com:80/",
-			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/",
-		}, {
-			rawURL:    "http://USER@docker:password@proxy.example.com:80/",
-			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/",
-		}, {
-			rawURL:    "http://USER%40docker:password@proxy.example.com:80/",
-			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/",
-		}, {
-			rawURL:    "http://USER%40docker:pa%3Fsword@proxy.example.com:80/",
-			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/",
-		}, {
-			rawURL:    "http://USER%40docker:pa%3Fsword@proxy.example.com:80/hello%20world",
-			maskedURL: "http://xxxxx:xxxxx@proxy.example.com:80/hello%20world",
-		},
-	}
-	for _, test := range tests {
-		maskedURL := maskCredentials(test.rawURL)
-		assert.Equal(t, maskedURL, test.maskedURL)
-	}
-}