headscale/cmd/headscale/cli/policy.go
2024-09-07 09:23:58 +02:00

88 lines
2.4 KiB
Go

package cli
import (
"fmt"
"io"
"os"
v1 "github.com/juanfont/headscale/gen/go/headscale/v1"
"github.com/rs/zerolog/log"
"github.com/spf13/cobra"
)
func init() {
rootCmd.AddCommand(policyCmd)
policyCmd.AddCommand(getPolicy)
setPolicy.Flags().StringP("file", "f", "", "Path to a policy file in HuJSON format")
if err := setPolicy.MarkFlagRequired("file"); err != nil {
log.Fatal().Err(err).Msg("")
}
policyCmd.AddCommand(setPolicy)
}
var policyCmd = &cobra.Command{
Use: "policy",
Short: "Manage the Headscale ACL Policy",
}
var getPolicy = &cobra.Command{
Use: "get",
Short: "Print the current ACL Policy",
Aliases: []string{"show", "view", "fetch"},
Run: func(cmd *cobra.Command, args []string) {
output, _ := cmd.Flags().GetString("output")
ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
defer cancel()
defer conn.Close()
request := &v1.GetPolicyRequest{}
response, err := client.GetPolicy(ctx, request)
if err != nil {
ErrorOutput(err, fmt.Sprintf("Failed loading ACL Policy: %s", err), output)
}
// TODO(pallabpain): Maybe print this better?
// This does not pass output as we dont support yaml, json or json-line
// output for this command. It is HuJSON already.
SuccessOutput("", response.GetPolicy(), "")
},
}
var setPolicy = &cobra.Command{
Use: "set",
Short: "Updates the ACL Policy",
Long: `
Updates the existing ACL Policy with the provided policy. The policy must be a valid HuJSON object.
This command only works when the acl.policy_mode is set to "db", and the policy will be stored in the database.`,
Aliases: []string{"put", "update"},
Run: func(cmd *cobra.Command, args []string) {
output, _ := cmd.Flags().GetString("output")
policyPath, _ := cmd.Flags().GetString("file")
f, err := os.Open(policyPath)
if err != nil {
ErrorOutput(err, fmt.Sprintf("Error opening the policy file: %s", err), output)
}
defer f.Close()
policyBytes, err := io.ReadAll(f)
if err != nil {
ErrorOutput(err, fmt.Sprintf("Error reading the policy file: %s", err), output)
}
request := &v1.SetPolicyRequest{Policy: string(policyBytes)}
ctx, client, conn, cancel := newHeadscaleCLIWithConfig()
defer cancel()
defer conn.Close()
if _, err := client.SetPolicy(ctx, request); err != nil {
ErrorOutput(err, fmt.Sprintf("Failed to set ACL Policy: %s", err), output)
}
SuccessOutput(nil, "Policy updated.", "")
},
}