add license banner for GNU AGPLv3 (#15178)

Bonus: rewrite subnet re-use of Transport

cmd/callhome.go

@@ -134,3 +134,17 @@ func performCallhome(ctx context.Context) {
 		logger.LogIf(ctx, fmt.Errorf("Unable to perform callhome: %w", err))
 	}
 }
+
+const (
+	callhomeURL    = "https://subnet.min.io/api/callhome"
+	callhomeURLDev = "http://localhost:9000/api/callhome"
+)
+
+func sendCallhomeInfo(ch CallhomeInfo) error {
+	url := callhomeURL
+	if globalIsCICD {
+		url = callhomeURLDev
+	}
+	_, err := globalSubnetConfig.Post(url, ch)
+	return err
+}

cmd/config-current.go

@@ -364,7 +364,7 @@ func validateSubSysConfig(s config.Config, subSys string, objAPI ObjectLayer) er
 			return err
 		}
 	case config.SubnetSubSys:
-		if _, err := subnet.LookupConfig(s[config.SubnetSubSys][config.Default]); err != nil {
+		if _, err := subnet.LookupConfig(s[config.SubnetSubSys][config.Default], nil); err != nil {
 			return err
 		}
 	case config.CallhomeSubSys:
@@ -599,7 +599,7 @@ func lookupConfigs(s config.Config, objAPI ObjectLayer) {
 
 	setGlobalAuthZPlugin(polplugin.New(authZPluginCfg))
 
-	globalSubnetConfig, err = subnet.LookupConfig(s[config.SubnetSubSys][config.Default])
+	globalSubnetConfig, err = subnet.LookupConfig(s[config.SubnetSubSys][config.Default], globalProxyTransport)
 	if err != nil {
 		logger.LogIf(ctx, fmt.Errorf("Unable to parse subnet configuration: %w", err))
 	}

cmd/iam.go

@@ -372,7 +372,7 @@ func (sys *IAMSys) Init(ctx context.Context, objAPI ObjectLayer, etcdClient *etc
 	sys.printIAMRoles()
 
 	now := time.Now()
-	logger.Info("Finished loading IAM sub-system (took %.1fs of %.1fs to load data).", now.Sub(iamLoadStart).Seconds(), now.Sub(iamInitStart).Seconds())
+	logger.Info("Finished loading IAM sub-system (took %.1fs of %.1fs).", now.Sub(iamLoadStart).Seconds(), now.Sub(iamInitStart).Seconds())
 }
 
 func (sys *IAMSys) validateAndAddRolePolicyMappings(ctx context.Context, m map[arn.ARN]string) {

cmd/main.go

@@ -167,7 +167,7 @@ func printMinIOVersion(c *cli.Context) {
 	fmt.Fprintln(c.App.Writer, color.Greenf("%s version %s (commit-id=%s)", c.App.Name, c.App.Version, CommitID))
 	fmt.Fprintln(c.App.Writer, color.Greenf("Runtime: %s %s/%s", runtime.Version(), runtime.GOOS, runtime.GOARCH))
 	fmt.Fprintln(c.App.Writer, color.Greenf("Copyright (c) 2015-%s MinIO, Inc.", CopyrightYear))
-	fmt.Fprintln(c.App.Writer, color.Red("Licence AGPLv3 <https://www.gnu.org/licenses/agpl-3.0.html>"))
+	fmt.Fprintln(c.App.Writer, color.Red("Licence GNU AGPLv3 <https://www.gnu.org/licenses/agpl-3.0.html>"))
 }
 
 // Main main for minio server.

cmd/server-startup-msg.go

@@ -50,6 +50,11 @@ func printStartupMessage(apiEndpoints []string, err error) {
 		}
 	}
 
+	if len(globalSubnetConfig.APIKey) == 0 && err == nil {
+		logger.Info(color.Blue("\nLicense:") + " GNU AGPLv3 <https://www.gnu.org/licenses/agpl-3.0.html>")
+		logger.Info(color.Yellow("Detected a deployment not registered with SUBNET. Please register your deployment via 'mc support register ALIAS'\n"))
+	}
+
 	strippedAPIEndpoints := stripStandardPorts(apiEndpoints, globalMinioHost)
 	// If cache layer is enabled, print cache capacity.
 	cachedObjAPI := newCachedObjectLayerFn()
@@ -72,12 +77,6 @@ func printStartupMessage(apiEndpoints []string, err error) {
 
 	// Prints documentation message.
 	printObjectAPIMsg()
-
-	if globalMinioConsolePortAuto && globalBrowserEnabled {
-		msg := fmt.Sprintf("\nWARNING: Console endpoint is listening on a dynamic port (%s), please use --console-address \":PORT\" to choose a static port.",
-			globalMinioConsolePort)
-		logger.Info(color.RedBold(msg))
-	}
 }
 
 // Returns true if input is IPv6
@@ -141,9 +140,13 @@ func printServerCommonMsg(apiEndpoints []string) {
 	}
 	printEventNotifiers()
 
+	if globalMinioConsolePortAuto && globalBrowserEnabled {
+		logger.Info(color.RedBold("\nWARNING: Console endpoint is listening on a dynamic port (%s), please use --console-address \":PORT\" to choose a static port.",
+			globalMinioConsolePort))
+	}
 	if globalBrowserEnabled {
 		consoleEndpointStr := strings.Join(stripStandardPorts(getConsoleEndpoints(), globalMinioConsoleHost), " ")
-		logger.Info(color.Blue("\nConsole: ") + color.Bold(fmt.Sprintf("%s ", consoleEndpointStr)))
+		logger.Info(color.Blue("Console: ") + color.Bold(fmt.Sprintf("%s ", consoleEndpointStr)))
 		if color.IsTerminal() && (!globalCLIContext.Anonymous && !globalCLIContext.JSON) {
 			logger.Info(color.Blue("RootUser: ") + color.Bold(fmt.Sprintf("%s ", cred.AccessKey)))
 			logger.Info(color.Blue("RootPass: ") + color.Bold(fmt.Sprintf("%s ", cred.SecretKey)))

internal/config/subnet/config.go

@@ -18,6 +18,10 @@
 package subnet
 
 import (
+	"net/http"
+	"net/url"
+	"strings"
+
 	"github.com/minio/minio/internal/config"
 	"github.com/minio/pkg/env"
 	xnet "github.com/minio/pkg/net"
@@ -49,10 +53,13 @@ type Config struct {
 
 	// The HTTP(S) proxy URL to use for connecting to SUBNET
 	ProxyURL *xnet.URL `json:"proxy_url"`
+
+	// Transport configured with proxy_url if set optionally.
+	transport *http.Transport
 }
 
 // LookupConfig - lookup config and override with valid environment settings if any.
-func LookupConfig(kvs config.KVS) (cfg Config, err error) {
+func LookupConfig(kvs config.KVS, transport http.RoundTripper) (cfg Config, err error) {
 	if err = config.CheckValidKeys(config.SubnetSubSys, kvs, DefaultKVS); err != nil {
 		return cfg, err
 	}
@@ -63,10 +70,24 @@ func LookupConfig(kvs config.KVS) (cfg Config, err error) {
 		if err != nil {
 			return cfg, err
 		}
+
 	}
 
-	cfg.License = env.Get(config.EnvMinIOSubnetLicense, kvs.Get(config.License))
-	cfg.APIKey = env.Get(config.EnvMinIOSubnetAPIKey, kvs.Get(config.APIKey))
+	cfg.License = strings.TrimSpace(env.Get(config.EnvMinIOSubnetLicense, kvs.Get(config.License)))
+	cfg.APIKey = strings.TrimSpace(env.Get(config.EnvMinIOSubnetAPIKey, kvs.Get(config.APIKey)))
+
+	if transport == nil {
+		// when transport is nil, it means we are just validating the
+		// inputs not performing any network calls.
+		return cfg, nil
+	}
+
+	// Make sure to clone the transport before editing the ProxyURL
+	ctransport := transport.(*http.Transport).Clone()
+	if cfg.ProxyURL != nil {
+		ctransport.Proxy = http.ProxyURL((*url.URL)(cfg.ProxyURL))
+	}
+	cfg.transport = ctransport
 
 	return cfg, nil
 }

internal/config/subnet/subnet.go

@@ -15,7 +15,7 @@
 // You should have received a copy of the GNU Affero General Public License
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-package cmd
+package subnet
 
 import (
 	"bytes"
@@ -25,58 +25,20 @@ import (
 	"io"
 	"io/ioutil"
 	"net/http"
-	"net/url"
 	"time"
 
 	xhttp "github.com/minio/minio/internal/http"
 )
 
 const (
-	subnetRespBodyLimit = 1 << 20 // 1 MiB
-	callhomeURL         = "https://subnet.min.io/api/callhome"
-	callhomeURLDev      = "http://localhost:9000/api/callhome"
+	respBodyLimit = 1 << 20 // 1 MiB
 )
 
-func httpClient(timeout time.Duration) *http.Client {
-	return &http.Client{
-		Timeout:   timeout,
-		Transport: globalProxyTransport,
+// Post submit 'payload' to specified URL
+func (c Config) Post(reqURL string, payload interface{}) (string, error) {
+	if len(c.APIKey) == 0 {
+		return "", errors.New("Deployment is not registered with SUBNET. Please register the deployment via 'mc support register ALIAS'")
 	}
-}
-
-func subnetHTTPDo(req *http.Request) (*http.Response, error) {
-	client := httpClient(10 * time.Second)
-	if globalSubnetConfig.ProxyURL != nil {
-		client.Transport.(*http.Transport).Proxy = http.ProxyURL((*url.URL)(globalSubnetConfig.ProxyURL))
-	}
-	return client.Do(req)
-}
-
-func subnetReqDo(r *http.Request, authToken string) (string, error) {
-	r.Header.Set("Authorization", authToken)
-	r.Header.Set("Content-Type", "application/json")
-
-	resp, err := subnetHTTPDo(r)
-	if resp != nil {
-		defer xhttp.DrainBody(resp.Body)
-	}
-	if err != nil {
-		return "", err
-	}
-
-	respBytes, err := ioutil.ReadAll(io.LimitReader(resp.Body, subnetRespBodyLimit))
-	if err != nil {
-		return "", err
-	}
-	respStr := string(respBytes)
-
-	if resp.StatusCode == http.StatusOK {
-		return respStr, nil
-	}
-	return respStr, fmt.Errorf("SUBNET request failed with code %d and error: %s", resp.StatusCode, respStr)
-}
-
-func subnetPostReq(reqURL string, payload interface{}, authToken string) (string, error) {
 	body, err := json.Marshal(payload)
 	if err != nil {
 		return "", err
@@ -85,18 +47,30 @@ func subnetPostReq(reqURL string, payload interface{}, authToken string) (string
 	if err != nil {
 		return "", err
 	}
-	return subnetReqDo(r, authToken)
+
+	r.Header.Set("Authorization", c.APIKey)
+	r.Header.Set("Content-Type", "application/json")
+
+	client := &http.Client{
+		Timeout:   10 * time.Second,
+		Transport: c.transport,
 	}
 
-func sendCallhomeInfo(ch CallhomeInfo) error {
-	if len(globalSubnetConfig.APIKey) == 0 {
-		return errors.New("Cluster is not registered with SUBNET. Please register by running 'mc support register ALIAS'")
+	resp, err := client.Do(r)
+	if err != nil {
+		return "", err
+	}
+	defer xhttp.DrainBody(resp.Body)
+
+	respBytes, err := ioutil.ReadAll(io.LimitReader(resp.Body, respBodyLimit))
+	if err != nil {
+		return "", err
+	}
+	respStr := string(respBytes)
+
+	if resp.StatusCode == http.StatusOK {
+		return respStr, nil
 	}
 
-	url := callhomeURL
-	if globalIsCICD {
-		url = callhomeURLDev
-	}
-	_, err := subnetPostReq(url, ch, globalSubnetConfig.APIKey)
-	return err
+	return respStr, fmt.Errorf("SUBNET request failed with code %d and error: %s", resp.StatusCode, respStr)
 }