Merge pull request #62 from rneatherway/authcmd

Add an auth command

cmd/gh-slack/cmd/auth.go

@@ -0,0 +1,88 @@
+package cmd
+
+import (
+	"fmt"
+	"net/url"
+
+	"github.com/cli/go-gh/pkg/config"
+	"github.com/rneatherway/slack"
+	"github.com/spf13/cobra"
+)
+
+var authCmd = &cobra.Command{
+	Use:   "auth [flags]",
+	Short: "Prints authentication information for the Slack API (treat output as secret)",
+	Long:  "Prints authentication information for the Slack API (treat output as secret).",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		cfg, err := config.Read()
+		if err != nil {
+			return err
+		}
+
+		team, err := getFlagOrElseConfig(cfg, cmd.Flags(), "team")
+		if err != nil {
+			return err
+		}
+
+		auth, err := slack.GetCookieAuth(team)
+		if err != nil {
+			return err
+		}
+
+		vals := url.Values{}
+		for k, v := range auth.Cookies {
+			vals.Add(k, v)
+		}
+
+		fmt.Printf("export SLACK_TOKEN=%s\n", auth.Token)
+		fmt.Printf("export SLACK_COOKIES=%s\n", vals.Encode())
+		return nil
+	},
+	Example: `  eval $(gh-slack auth [-t <team-name>])
+
+  # Example configuration (add to gh's configuration file at $HOME/.config/gh/config.yml):
+  extensions:
+    slack:
+      team: foo`,
+}
+
+func init() {
+	authCmd.Flags().StringP("team", "t", "", "Slack team name (required here or in config)")
+	authCmd.SetHelpTemplate(authCmdUsageTemplate)
+	authCmd.SetUsageTemplate(authCmdUsageTemplate)
+}
+
+const authCmdUsageTemplate string = `Usage:{{if .Runnable}}
+{{.UseLine}}{{end}}{{if .HasAvailableSubCommands}}
+{{.CommandPath}}{{end}}{{if gt (len .Aliases) 0}}
+Aliases:
+{{.NameAndAliases}}{{end}}{{if .HasExample}}
+
+Security:
+  Treat the output of this command as secret and do not share it with anyone!
+  It can be used to impersonate you. If you suspect it has been compromised,
+  log out of the Slack app to revoke the token and cookies.
+
+Examples:
+{{.Example}}{{end}}{{if .HasAvailableSubCommands}}{{$cmds := .Commands}}{{if eq (len .Groups) 0}}
+
+Available Commands:{{range $cmds}}{{if (or .IsAvailableCommand)}}
+{{rpad .Name .NamePadding }} {{.Short}}{{end}}{{end}}{{else}}{{range $group := .Groups}}
+
+{{.Title}}{{range $cmds}}{{if (and (eq .GroupID $group.ID) (or .IsAvailableCommand (eq .Name "help")))}}
+{{rpad .Name .NamePadding }} {{.Short}}{{end}}{{end}}{{end}}{{if not .AllChildCommandsHaveGroup}}
+
+Additional Commands:{{range $cmds}}{{if (and (eq .GroupID "") (or .IsAvailableCommand (eq .Name "help")))}}
+{{rpad .Name .NamePadding }} {{.Short}}{{end}}{{end}}{{end}}{{end}}{{end}}{{if .HasAvailableLocalFlags}}
+
+Flags:
+{{.LocalFlags.FlagUsages | trimTrailingWhitespaces}}{{end}}{{if .HasAvailableInheritedFlags}}
+
+Global Flags:
+{{.InheritedFlags.FlagUsages | trimTrailingWhitespaces}}{{end}}{{if .HasHelpSubCommands}}
+
+Additional help topics:{{range .Commands}}{{if .IsAdditionalHelpTopicCommand}}
+{{rpad .CommandPath .CommandPathPadding}} {{.Short}}{{end}}{{end}}{{end}}{{if .HasAvailableSubCommands}}
+
+Use "{{.CommandPath}} [command] --help" for more information about a command.{{end}}
+`

cmd/gh-slack/cmd/root.go

@@ -3,10 +3,25 @@ package cmd
 import (
 	"os"
 
+	"github.com/cli/go-gh/pkg/config"
 	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
 )
 
-const sendConfigExample = `
+func getFlagOrElseConfig(cfg *config.Config, flags *pflag.FlagSet, key string) (string, error) {
+	value, err := flags.GetString(key)
+	if err != nil {
+		return "", err
+	}
+
+	if value != "" {
+		return value, nil
+
+	}
+	return cfg.Get([]string{"extensions", "slack", key})
+}
+
+const sendConfigEample = `
   # Example configuration (add to gh's configuration file at $HOME/.config/gh/config.yml):
   extensions:
     slack:
@@ -25,7 +40,8 @@ var rootCmd = &cobra.Command{
   gh-slack read -i <issue-url> <slack-permalink>
   gh-slack send -m <message> -c <channel-name> -t <team-name>
   gh-slack api post chat.postMessage -b '{"channel":"123","blocks":[...]}
-  ` + sendConfigExample,
+  eval $(gh-slack auth -t <team-name>)
+  ` + sendConfigEample,
 }
 
 func Execute() error {
@@ -43,6 +59,7 @@ func init() {
 	rootCmd.AddCommand(readCmd)
 	rootCmd.AddCommand(sendCmd)
 	rootCmd.AddCommand(apiCmd)
+	rootCmd.AddCommand(authCmd)
 	rootCmd.PersistentFlags().BoolVarP(&verbose, "verbose", "v", false, "Show verbose debug information")
 	rootCmd.SetHelpTemplate(rootCmdUsageTemplate)
 	rootCmd.SetUsageTemplate(rootCmdUsageTemplate)

cmd/gh-slack/cmd/send.go

@@ -8,22 +8,8 @@ import (
 	"github.com/cli/go-gh/pkg/config"
 	"github.com/rneatherway/gh-slack/internal/slackclient"
 	"github.com/spf13/cobra"
-	"github.com/spf13/pflag"
 )
 
-func getFlagOrElseConfig(cfg *config.Config, flags *pflag.FlagSet, key string) (string, error) {
-	value, err := flags.GetString(key)
-	if err != nil {
-		return "", err
-	}
-
-	if value != "" {
-		return value, nil
-
-	}
-	return cfg.Get([]string{"extensions", "slack", key})
-}
-
 var sendCmd = &cobra.Command{
 	Use:   "send [flags]",
 	Short: "Sends a message to a Slack channel",
@@ -74,7 +60,7 @@ var sendCmd = &cobra.Command{
 	},
 	Example: `  gh-slack send -t <team-name> -c <channel-name> -m <message> -b <bot-name>
   gh-slack send -m <message> -w # If bot is specified in config
-` + sendConfigExample,
+` + sendConfigEample,
 }
 
 // sendMessage sends a message to a Slack channel.