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refact "cscli bouncers" (#2776)

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mmetc 2024-01-31 12:40:41 +01:00 committed by GitHub
parent 3921c3f480
commit 4192af30d5
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6 changed files with 201 additions and 187 deletions
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356
cmd/crowdsec-cli/bouncers.go
View file

@ -4,7 +4,8 @@ import (
"encoding/csv"
"encoding/json"
"fmt"
"io"
"os"
"slices"
"strings"
"time"
@ -12,61 +13,41 @@ import (
"github.com/fatih/color"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"slices"
"github.com/crowdsecurity/crowdsec/cmd/crowdsec-cli/require"
middlewares "github.com/crowdsecurity/crowdsec/pkg/apiserver/middlewares/v1"
"github.com/crowdsecurity/crowdsec/pkg/csconfig"
"github.com/crowdsecurity/crowdsec/pkg/database"
"github.com/crowdsecurity/crowdsec/pkg/types"
)
func getBouncers(out io.Writer, dbClient *database.Client) error {
bouncers, err := dbClient.ListBouncers()
if err != nil {
return fmt.Errorf("unable to list bouncers: %s", err)
func askYesNo(message string, defaultAnswer bool) (bool, error) {
var answer bool
prompt := &survey.Confirm{
Message: message,
Default: defaultAnswer,
}
switch csConfig.Cscli.Output {
case "human":
getBouncersTable(out, bouncers)
case "json":
enc := json.NewEncoder(out)
enc.SetIndent("", " ")
if err := enc.Encode(bouncers); err != nil {
return fmt.Errorf("failed to unmarshal: %w", err)
}
return nil
case "raw":
csvwriter := csv.NewWriter(out)
err := csvwriter.Write([]string{"name", "ip", "revoked", "last_pull", "type", "version", "auth_type"})
if err != nil {
return fmt.Errorf("failed to write raw header: %w", err)
}
for _, b := range bouncers {
var revoked string
if !b.Revoked {
revoked = "validated"
} else {
revoked = "pending"
}
err := csvwriter.Write([]string{b.Name, b.IPAddress, revoked, b.LastPull.Format(time.RFC3339), b.Type, b.Version, b.AuthType})
if err != nil {
return fmt.Errorf("failed to write raw: %w", err)
}
}
csvwriter.Flush()
if err := survey.AskOne(prompt, &answer); err != nil {
return defaultAnswer, err
}
return nil
return answer, nil
}
type cliBouncers struct {}
func NewCLIBouncers() *cliBouncers {
return &cliBouncers{}
type cliBouncers struct {
db *database.Client
cfg func() *csconfig.Config
}
func (cli cliBouncers) NewCommand() *cobra.Command {
func NewCLIBouncers(getconfig func() *csconfig.Config) *cliBouncers {
return &cliBouncers{
cfg: getconfig,
}
}
func (cli *cliBouncers) NewCommand() *cobra.Command {
cmd := &cobra.Command{
Use: "bouncers [action]",
Short: "Manage bouncers [requires local API]",
@ -76,94 +57,127 @@ Note: This command requires database direct access, so is intended to be run on
Args: cobra.MinimumNArgs(1),
Aliases: []string{"bouncer"},
DisableAutoGenTag: true,
PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
PersistentPreRunE: func(_ *cobra.Command, _ []string) error {
var err error
if err = require.LAPI(csConfig); err != nil {
if err = require.LAPI(cli.cfg()); err != nil {
return err
}
dbClient, err = database.NewClient(csConfig.DbConfig)
cli.db, err = database.NewClient(cli.cfg().DbConfig)
if err != nil {
return fmt.Errorf("unable to create new database client: %s", err)
return fmt.Errorf("can't connect to the database: %s", err)
}
return nil
},
}
cmd.AddCommand(cli.NewListCmd())
cmd.AddCommand(cli.NewAddCmd())
cmd.AddCommand(cli.NewDeleteCmd())
cmd.AddCommand(cli.NewPruneCmd())
cmd.AddCommand(cli.newListCmd())
cmd.AddCommand(cli.newAddCmd())
cmd.AddCommand(cli.newDeleteCmd())
cmd.AddCommand(cli.newPruneCmd())
return cmd
}
func (cli cliBouncers) NewListCmd() *cobra.Command {
func (cli *cliBouncers) list() error {
out := color.Output
bouncers, err := cli.db.ListBouncers()
if err != nil {
return fmt.Errorf("unable to list bouncers: %s", err)
}
switch cli.cfg().Cscli.Output {
case "human":
getBouncersTable(out, bouncers)
case "json":
enc := json.NewEncoder(out)
enc.SetIndent("", " ")
if err := enc.Encode(bouncers); err != nil {
return fmt.Errorf("failed to marshal: %w", err)
}
return nil
case "raw":
csvwriter := csv.NewWriter(out)
if err := csvwriter.Write([]string{"name", "ip", "revoked", "last_pull", "type", "version", "auth_type"}); err != nil {
return fmt.Errorf("failed to write raw header: %w", err)
}
for _, b := range bouncers {
valid := "validated"
if b.Revoked {
valid = "pending"
}
if err := csvwriter.Write([]string{b.Name, b.IPAddress, valid, b.LastPull.Format(time.RFC3339), b.Type, b.Version, b.AuthType}); err != nil {
return fmt.Errorf("failed to write raw: %w", err)
}
}
csvwriter.Flush()
}
return nil
}
func (cli *cliBouncers) newListCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "list",
Short: "list all bouncers within the database",
Example: `cscli bouncers list`,
Args: cobra.ExactArgs(0),
DisableAutoGenTag: true,
RunE: func(cmd *cobra.Command, arg []string) error {
err := getBouncers(color.Output, dbClient)
if err != nil {
return fmt.Errorf("unable to list bouncers: %s", err)
}
return nil
RunE: func(_ *cobra.Command, _ []string) error {
return cli.list()
},
}
return cmd
}
func (cli cliBouncers) add(cmd *cobra.Command, args []string) error {
func (cli *cliBouncers) add(bouncerName string, key string) error {
var err error
keyLength := 32
flags := cmd.Flags()
key, err := flags.GetString("key")
if err != nil {
return err
}
keyName := args[0]
var apiKey string
if keyName == "" {
return fmt.Errorf("please provide a name for the api key")
}
apiKey = key
if key == "" {
apiKey, err = middlewares.GenerateAPIKey(keyLength)
key, err = middlewares.GenerateAPIKey(keyLength)
if err != nil {
return fmt.Errorf("unable to generate api key: %s", err)
}
}
if err != nil {
return fmt.Errorf("unable to generate api key: %s", err)
}
_, err = dbClient.CreateBouncer(keyName, "", middlewares.HashSHA512(apiKey), types.ApiKeyAuthType)
_, err = cli.db.CreateBouncer(bouncerName, "", middlewares.HashSHA512(key), types.ApiKeyAuthType)
if err != nil {
return fmt.Errorf("unable to create bouncer: %s", err)
}
switch csConfig.Cscli.Output {
switch cli.cfg().Cscli.Output {
case "human":
fmt.Printf("API key for '%s':\n\n", keyName)
fmt.Printf(" %s\n\n", apiKey)
fmt.Printf("API key for '%s':\n\n", bouncerName)
fmt.Printf(" %s\n\n", key)
fmt.Print("Please keep this key since you will not be able to retrieve it!\n")
case "raw":
fmt.Printf("%s", apiKey)
fmt.Print(key)
case "json":
j, err := json.Marshal(apiKey)
j, err := json.Marshal(key)
if err != nil {
return fmt.Errorf("unable to marshal api key")
}
fmt.Printf("%s", string(j))
fmt.Print(string(j))
}
return nil
}
func (cli cliBouncers) NewAddCmd() *cobra.Command {
func (cli *cliBouncers) newAddCmd() *cobra.Command {
var key string
cmd := &cobra.Command{
Use: "add MyBouncerName",
Short: "add a single bouncer to the database",
@ -171,127 +185,133 @@ func (cli cliBouncers) NewAddCmd() *cobra.Command {
cscli bouncers add MyBouncerName --key <random-key>`,
Args: cobra.ExactArgs(1),
DisableAutoGenTag: true,
RunE: cli.add,
RunE: func(_ *cobra.Command, args []string) error {
return cli.add(args[0], key)
},
}
flags := cmd.Flags()
flags.StringP("length", "l", "", "length of the api key")
flags.MarkDeprecated("length", "use --key instead")
flags.StringP("key", "k", "", "api key for the bouncer")
flags.StringVarP(&key, "key", "k", "", "api key for the bouncer")
return cmd
}
func (cli cliBouncers) delete(cmd *cobra.Command, args []string) error {
for _, bouncerID := range args {
err := dbClient.DeleteBouncer(bouncerID)
func (cli *cliBouncers) deleteValid(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
bouncers, err := cli.db.ListBouncers()
if err != nil {
cobra.CompError("unable to list bouncers " + err.Error())
}
ret :=[]string{}
for _, bouncer := range bouncers {
if strings.Contains(bouncer.Name, toComplete) && !slices.Contains(args, bouncer.Name) {
ret = append(ret, bouncer.Name)
}
}
return ret, cobra.ShellCompDirectiveNoFileComp
}
func (cli *cliBouncers) delete(bouncers []string) error {
for _, bouncerID := range bouncers {
err := cli.db.DeleteBouncer(bouncerID)
if err != nil {
return fmt.Errorf("unable to delete bouncer '%s': %s", bouncerID, err)
}
log.Infof("bouncer '%s' deleted successfully", bouncerID)
}
return nil
}
func (cli cliBouncers) NewDeleteCmd() *cobra.Command {
func (cli *cliBouncers) newDeleteCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "delete MyBouncerName",
Short: "delete bouncer(s) from the database",
Args: cobra.MinimumNArgs(1),
Aliases: []string{"remove"},
DisableAutoGenTag: true,
ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
var err error
dbClient, err = getDBClient()
if err != nil {
cobra.CompError("unable to create new database client: " + err.Error())
return nil, cobra.ShellCompDirectiveNoFileComp
}
bouncers, err := dbClient.ListBouncers()
if err != nil {
cobra.CompError("unable to list bouncers " + err.Error())
}
ret := make([]string, 0)
for _, bouncer := range bouncers {
if strings.Contains(bouncer.Name, toComplete) && !slices.Contains(args, bouncer.Name) {
ret = append(ret, bouncer.Name)
}
}
return ret, cobra.ShellCompDirectiveNoFileComp
ValidArgsFunction: cli.deleteValid,
RunE: func(_ *cobra.Command, args []string) error {
return cli.delete(args)
},
RunE: cli.delete,
}
return cmd
}
func (cli cliBouncers) NewPruneCmd() *cobra.Command {
var parsedDuration time.Duration
func (cli *cliBouncers) prune(duration time.Duration, force bool) error {
if duration < 2*time.Minute {
if yes, err := askYesNo(
"The duration you provided is less than 2 minutes. " +
"This may remove active bouncers. Continue?", false); err != nil {
return err
} else if !yes {
fmt.Println("User aborted prune. No changes were made.")
return nil
}
}
bouncers, err := cli.db.QueryBouncersLastPulltimeLT(time.Now().UTC().Add(duration))
if err != nil {
return fmt.Errorf("unable to query bouncers: %w", err)
}
if len(bouncers) == 0 {
fmt.Println("No bouncers to prune.")
return nil
}
getBouncersTable(color.Output, bouncers)
if !force {
if yes, err := askYesNo(
"You are about to PERMANENTLY remove the above bouncers from the database. " +
"These will NOT be recoverable. Continue?", false); err != nil {
return err
} else if !yes {
fmt.Println("User aborted prune. No changes were made.")
return nil
}
}
deleted, err := cli.db.BulkDeleteBouncers(bouncers)
if err != nil {
return fmt.Errorf("unable to prune bouncers: %s", err)
}
fmt.Fprintf(os.Stderr, "Successfully deleted %d bouncers\n", deleted)
return nil
}
func (cli *cliBouncers) newPruneCmd() *cobra.Command {
var (
duration time.Duration
force bool
)
const defaultDuration = 60 * time.Minute
cmd := &cobra.Command{
Use: "prune",
Short: "prune multiple bouncers from the database",
Args: cobra.NoArgs,
DisableAutoGenTag: true,
Example: `cscli bouncers prune -d 60m
cscli bouncers prune -d 60m --force`,
PreRunE: func(cmd *cobra.Command, args []string) error {
dur, _ := cmd.Flags().GetString("duration")
var err error
parsedDuration, err = time.ParseDuration(fmt.Sprintf("-%s", dur))
if err != nil {
return fmt.Errorf("unable to parse duration '%s': %s", dur, err)
}
return nil
},
RunE: func(cmd *cobra.Command, args []string) error {
force, _ := cmd.Flags().GetBool("force")
if parsedDuration >= 0-2*time.Minute {
var answer bool
prompt := &survey.Confirm{
Message: "The duration you provided is less than or equal 2 minutes this may remove active bouncers continue ?",
Default: false,
}
if err := survey.AskOne(prompt, &answer); err != nil {
return fmt.Errorf("unable to ask about prune check: %s", err)
}
if !answer {
fmt.Println("user aborted prune no changes were made")
return nil
}
}
bouncers, err := dbClient.QueryBouncersLastPulltimeLT(time.Now().UTC().Add(parsedDuration))
if err != nil {
return fmt.Errorf("unable to query bouncers: %s", err)
}
if len(bouncers) == 0 {
fmt.Println("no bouncers to prune")
return nil
}
getBouncersTable(color.Output, bouncers)
if !force {
var answer bool
prompt := &survey.Confirm{
Message: "You are about to PERMANENTLY remove the above bouncers from the database these will NOT be recoverable, continue ?",
Default: false,
}
if err := survey.AskOne(prompt, &answer); err != nil {
return fmt.Errorf("unable to ask about prune check: %s", err)
}
if !answer {
fmt.Println("user aborted prune no changes were made")
return nil
}
}
nbDeleted, err := dbClient.BulkDeleteBouncers(bouncers)
if err != nil {
return fmt.Errorf("unable to prune bouncers: %s", err)
}
fmt.Printf("successfully delete %d bouncers\n", nbDeleted)
return nil
Example: `cscli bouncers prune -d 45m
cscli bouncers prune -d 45m --force`,
RunE: func(_ *cobra.Command, _ []string) error {
return cli.prune(duration, force)
},
}
cmd.Flags().StringP("duration", "d", "60m", "duration of time since last pull")
cmd.Flags().Bool("force", false, "force prune without asking for confirmation")
flags := cmd.Flags()
flags.DurationVarP(&duration, "duration", "d", defaultDuration, "duration of time since last pull")
flags.BoolVar(&force, "force", false, "force prune without asking for confirmation")
return cmd
}

7
cmd/crowdsec-cli/main.go
View file

@ -182,6 +182,11 @@ It is meant to allow you to manage bans, parsers/scenarios/etc, api and generall
cmd.Flags().SortFlags = false
cmd.PersistentFlags().SortFlags = false
// we use a getter because the config is not initialized until the Execute() call
getconfig := func() *csconfig.Config {
return csConfig
}
cmd.AddCommand(NewCLIDoc().NewCommand(cmd))
cmd.AddCommand(NewCLIVersion().NewCommand())
cmd.AddCommand(NewConfigCmd())
@ -191,7 +196,7 @@ It is meant to allow you to manage bans, parsers/scenarios/etc, api and generall
cmd.AddCommand(NewCLIDecisions().NewCommand())
cmd.AddCommand(NewCLIAlerts().NewCommand())
cmd.AddCommand(NewCLISimulation().NewCommand())
cmd.AddCommand(NewCLIBouncers().NewCommand())
cmd.AddCommand(NewCLIBouncers(getconfig).NewCommand())
cmd.AddCommand(NewCLIMachines().NewCommand())
cmd.AddCommand(NewCLICapi().NewCommand())
cmd.AddCommand(NewLapiCmd())

5
cmd/crowdsec-cli/support.go
View file

@ -149,10 +149,11 @@ func collectHubItems(hub *cwhub.Hub, itemType string) []byte {
func collectBouncers(dbClient *database.Client) ([]byte, error) {
out := bytes.NewBuffer(nil)
err := getBouncers(out, dbClient)
bouncers, err := dbClient.ListBouncers()
if err != nil {
return nil, err
return nil, fmt.Errorf("unable to list bouncers: %s", err)
}
getBouncersTable(out, bouncers)
return out.Bytes(), nil
}

12
cmd/crowdsec-cli/utils.go
View file

@ -8,7 +8,6 @@ import (
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/crowdsecurity/crowdsec/pkg/database"
"github.com/crowdsecurity/crowdsec/pkg/types"
)
@ -47,17 +46,6 @@ func manageCliDecisionAlerts(ip *string, ipRange *string, scope *string, value *
return nil
}
func getDBClient() (*database.Client, error) {
if err := csConfig.LoadAPIServer(true); err != nil || csConfig.DisableAPI {
return nil, err
}
ret, err := database.NewClient(csConfig.DbConfig)
if err != nil {
return nil, err
}
return ret, nil
}
func removeFromSlice(val string, slice []string) []string {
var i int
var value string

4
pkg/csconfig/api.go
View file

@ -285,7 +285,7 @@ func (c *Config) LoadAPIServer(inCli bool) error {
}
}
if c.API.Server.OnlineClient == nil || c.API.Server.OnlineClient.Credentials == nil {
if (c.API.Server.OnlineClient == nil || c.API.Server.OnlineClient.Credentials == nil) && !inCli {
log.Printf("push and pull to Central API disabled")
}
@ -297,7 +297,7 @@ func (c *Config) LoadAPIServer(inCli bool) error {
return err
}
if c.API.Server.CapiWhitelistsPath != "" {
if c.API.Server.CapiWhitelistsPath != "" && !inCli {
log.Infof("loaded capi whitelist from %s: %d IPs, %d CIDRs", c.API.Server.CapiWhitelistsPath, len(c.API.Server.CapiWhitelists.Ips), len(c.API.Server.CapiWhitelists.Cidrs))
}

4
pkg/csconfig/config.go
View file

@ -41,9 +41,9 @@ type Config struct {
Hub *LocalHubCfg `yaml:"-"`
}
func NewConfig(configFile string, disableAgent bool, disableAPI bool, quiet bool) (*Config, string, error) {
func NewConfig(configFile string, disableAgent bool, disableAPI bool, inCli bool) (*Config, string, error) {
patcher := yamlpatch.NewPatcher(configFile, ".local")
patcher.SetQuiet(quiet)
patcher.SetQuiet(inCli)
fcontent, err := patcher.MergedPatchContent()
if err != nil {
return nil, "", err