224 lines
5.4 KiB
Go
224 lines
5.4 KiB
Go
package main
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import (
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"context"
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"errors"
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"fmt"
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"net/url"
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"os"
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"github.com/go-openapi/strfmt"
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log "github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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"gopkg.in/yaml.v2"
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"github.com/crowdsecurity/go-cs-lib/version"
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"github.com/crowdsecurity/crowdsec/cmd/crowdsec-cli/require"
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"github.com/crowdsecurity/crowdsec/pkg/apiclient"
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"github.com/crowdsecurity/crowdsec/pkg/csconfig"
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"github.com/crowdsecurity/crowdsec/pkg/cwhub"
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"github.com/crowdsecurity/crowdsec/pkg/models"
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"github.com/crowdsecurity/crowdsec/pkg/types"
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)
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const (
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CAPIBaseURL = "https://api.crowdsec.net/"
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CAPIURLPrefix = "v3"
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)
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type cliCapi struct {
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cfg configGetter
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}
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func NewCLICapi(cfg configGetter) *cliCapi {
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return &cliCapi{
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cfg: cfg,
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}
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}
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func (cli *cliCapi) NewCommand() *cobra.Command {
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cmd := &cobra.Command{
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Use: "capi [action]",
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Short: "Manage interaction with Central API (CAPI)",
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Args: cobra.MinimumNArgs(1),
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DisableAutoGenTag: true,
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PersistentPreRunE: func(_ *cobra.Command, _ []string) error {
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cfg := cli.cfg()
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if err := require.LAPI(cfg); err != nil {
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return err
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}
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if err := require.CAPI(cfg); err != nil {
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return err
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}
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return nil
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},
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}
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cmd.AddCommand(cli.newRegisterCmd())
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cmd.AddCommand(cli.newStatusCmd())
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return cmd
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}
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func (cli *cliCapi) register(capiUserPrefix string, outputFile string) error {
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cfg := cli.cfg()
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capiUser, err := generateID(capiUserPrefix)
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if err != nil {
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return fmt.Errorf("unable to generate machine id: %w", err)
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}
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password := strfmt.Password(generatePassword(passwordLength))
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apiurl, err := url.Parse(types.CAPIBaseURL)
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if err != nil {
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return fmt.Errorf("unable to parse api url %s: %w", types.CAPIBaseURL, err)
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}
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_, err = apiclient.RegisterClient(&apiclient.Config{
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MachineID: capiUser,
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Password: password,
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UserAgent: fmt.Sprintf("crowdsec/%s", version.String()),
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URL: apiurl,
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VersionPrefix: CAPIURLPrefix,
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}, nil)
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if err != nil {
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return fmt.Errorf("api client register ('%s'): %w", types.CAPIBaseURL, err)
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}
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log.Infof("Successfully registered to Central API (CAPI)")
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var dumpFile string
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switch {
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case outputFile != "":
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dumpFile = outputFile
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case cfg.API.Server.OnlineClient.CredentialsFilePath != "":
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dumpFile = cfg.API.Server.OnlineClient.CredentialsFilePath
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default:
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dumpFile = ""
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}
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apiCfg := csconfig.ApiCredentialsCfg{
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Login: capiUser,
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Password: password.String(),
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URL: types.CAPIBaseURL,
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}
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apiConfigDump, err := yaml.Marshal(apiCfg)
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if err != nil {
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return fmt.Errorf("unable to marshal api credentials: %w", err)
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}
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if dumpFile != "" {
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err = os.WriteFile(dumpFile, apiConfigDump, 0o600)
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if err != nil {
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return fmt.Errorf("write api credentials in '%s' failed: %w", dumpFile, err)
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}
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log.Infof("Central API credentials written to '%s'", dumpFile)
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} else {
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fmt.Println(string(apiConfigDump))
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}
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log.Warning(ReloadMessage())
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return nil
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}
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func (cli *cliCapi) newRegisterCmd() *cobra.Command {
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var (
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capiUserPrefix string
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outputFile string
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)
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cmd := &cobra.Command{
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Use: "register",
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Short: "Register to Central API (CAPI)",
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Args: cobra.MinimumNArgs(0),
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DisableAutoGenTag: true,
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RunE: func(_ *cobra.Command, _ []string) error {
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return cli.register(capiUserPrefix, outputFile)
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},
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}
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cmd.Flags().StringVarP(&outputFile, "file", "f", "", "output file destination")
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cmd.Flags().StringVar(&capiUserPrefix, "schmilblick", "", "set a schmilblick (use in tests only)")
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if err := cmd.Flags().MarkHidden("schmilblick"); err != nil {
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log.Fatalf("failed to hide flag: %s", err)
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}
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return cmd
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}
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func (cli *cliCapi) status() error {
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cfg := cli.cfg()
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if err := require.CAPIRegistered(cfg); err != nil {
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return err
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}
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password := strfmt.Password(cfg.API.Server.OnlineClient.Credentials.Password)
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apiurl, err := url.Parse(cfg.API.Server.OnlineClient.Credentials.URL)
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if err != nil {
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return fmt.Errorf("parsing api url ('%s'): %w", cfg.API.Server.OnlineClient.Credentials.URL, err)
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}
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hub, err := require.Hub(cfg, nil, nil)
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if err != nil {
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return err
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}
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scenarios, err := hub.GetInstalledNamesByType(cwhub.SCENARIOS)
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if err != nil {
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return fmt.Errorf("failed to get scenarios: %w", err)
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}
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if len(scenarios) == 0 {
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return errors.New("no scenarios installed, abort")
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}
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Client, err = apiclient.NewDefaultClient(apiurl, CAPIURLPrefix, fmt.Sprintf("crowdsec/%s", version.String()), nil)
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if err != nil {
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return fmt.Errorf("init default client: %w", err)
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}
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t := models.WatcherAuthRequest{
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MachineID: &cfg.API.Server.OnlineClient.Credentials.Login,
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Password: &password,
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Scenarios: scenarios,
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}
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log.Infof("Loaded credentials from %s", cfg.API.Server.OnlineClient.CredentialsFilePath)
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log.Infof("Trying to authenticate with username %s on %s", cfg.API.Server.OnlineClient.Credentials.Login, apiurl)
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_, _, err = Client.Auth.AuthenticateWatcher(context.Background(), t)
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if err != nil {
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return fmt.Errorf("failed to authenticate to Central API (CAPI): %w", err)
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}
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log.Info("You can successfully interact with Central API (CAPI)")
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return nil
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}
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func (cli *cliCapi) newStatusCmd() *cobra.Command {
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cmd := &cobra.Command{
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Use: "status",
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Short: "Check status with the Central API (CAPI)",
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Args: cobra.MinimumNArgs(0),
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DisableAutoGenTag: true,
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RunE: func(_ *cobra.Command, _ []string) error {
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return cli.status()
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},
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}
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return cmd
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}
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