crowdsec/cmd/crowdsec-cli/itemcli.go

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package main
import (
"fmt"
"github.com/fatih/color"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/crowdsecurity/go-cs-lib/coalesce"
"github.com/crowdsecurity/crowdsec/cmd/crowdsec-cli/require"
"github.com/crowdsecurity/crowdsec/pkg/cwhub"
)
type cliHelp struct {
// Example is required, the others have a default value
// generated from the item type
use string
short string
long string
example string
}
type cliItem struct {
name string // plural, as used in the hub index
singular string
oneOrMore string // parenthetical pluralizaion: "parser(s)"
help cliHelp
installHelp cliHelp
removeHelp cliHelp
upgradeHelp cliHelp
inspectHelp cliHelp
inspectDetail func(item *cwhub.Item) error
listHelp cliHelp
}
func (it cliItem) NewCommand() *cobra.Command {
cmd := &cobra.Command{
Use: coalesce.String(it.help.use, fmt.Sprintf("%s <action> [item]...", it.name)),
Short: coalesce.String(it.help.short, fmt.Sprintf("Manage hub %s", it.name)),
Long: it.help.long,
Example: it.help.example,
Args: cobra.MinimumNArgs(1),
Aliases: []string{it.singular},
DisableAutoGenTag: true,
}
cmd.AddCommand(it.NewInstallCmd())
cmd.AddCommand(it.NewRemoveCmd())
cmd.AddCommand(it.NewUpgradeCmd())
cmd.AddCommand(it.NewInspectCmd())
cmd.AddCommand(it.NewListCmd())
return cmd
}
func (it cliItem) Install(cmd *cobra.Command, args []string) error {
flags := cmd.Flags()
downloadOnly, err := flags.GetBool("download-only")
if err != nil {
return err
}
force, err := flags.GetBool("force")
if err != nil {
return err
}
ignoreError, err := flags.GetBool("ignore")
if err != nil {
return err
}
hub, err := require.Hub(csConfig, require.RemoteHub(csConfig))
if err != nil {
return err
}
for _, name := range args {
item := hub.GetItem(it.name, name)
if item == nil {
msg := suggestNearestMessage(hub, it.name, name)
if !ignoreError {
return fmt.Errorf(msg)
}
log.Errorf(msg)
continue
}
if err := item.Install(force, downloadOnly); err != nil {
if !ignoreError {
return fmt.Errorf("error while installing '%s': %w", item.Name, err)
}
log.Errorf("Error while installing '%s': %s", item.Name, err)
}
}
log.Infof(ReloadMessage())
return nil
}
func (it cliItem) NewInstallCmd() *cobra.Command {
cmd := &cobra.Command{
Use: coalesce.String(it.installHelp.use, "install [item]..."),
Short: coalesce.String(it.installHelp.short, fmt.Sprintf("Install given %s", it.oneOrMore)),
Long: coalesce.String(it.installHelp.long, fmt.Sprintf("Fetch and install one or more %s from the hub", it.name)),
Example: it.installHelp.example,
Args: cobra.MinimumNArgs(1),
DisableAutoGenTag: true,
ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
return compAllItems(it.name, args, toComplete)
},
RunE: it.Install,
}
flags := cmd.Flags()
flags.BoolP("download-only", "d", false, "Only download packages, don't enable")
flags.Bool("force", false, "Force install: overwrite tainted and outdated files")
flags.Bool("ignore", false, fmt.Sprintf("Ignore errors when installing multiple %s", it.name))
return cmd
}
// return the names of the installed parents of an item, used to check if we can remove it
func istalledParentNames(item *cwhub.Item) []string {
ret := make([]string, 0)
for _, parent := range item.Ancestors() {
if parent.State.Installed {
ret = append(ret, parent.Name)
}
}
return ret
}
func (it cliItem) Remove(cmd *cobra.Command, args []string) error {
flags := cmd.Flags()
purge, err := flags.GetBool("purge")
if err != nil {
return err
}
force, err := flags.GetBool("force")
if err != nil {
return err
}
all, err := flags.GetBool("all")
if err != nil {
return err
}
hub, err := require.Hub(csConfig, nil)
if err != nil {
return err
}
if all {
getter := hub.GetInstalledItems
if purge {
getter = hub.GetAllItems
}
items, err := getter(it.name)
if err != nil {
return err
}
removed := 0
for _, item := range items {
didRemove, err := item.Remove(purge, force)
if err != nil {
return err
}
if didRemove {
log.Infof("Removed %s", item.Name)
removed++
}
}
log.Infof("Removed %d %s", removed, it.name)
if removed > 0 {
log.Infof(ReloadMessage())
}
return nil
}
if len(args) == 0 {
return fmt.Errorf("specify at least one %s to remove or '--all'", it.singular)
}
removed := 0
for _, itemName := range args {
item := hub.GetItem(it.name, itemName)
if item == nil {
return fmt.Errorf("can't find '%s' in %s", itemName, it.name)
}
parents := istalledParentNames(item)
if !force && len(parents) > 0 {
log.Warningf("%s belongs to collections: %s", item.Name, parents)
log.Warningf("Run 'sudo cscli %s remove %s --force' if you want to force remove this %s", item.Type, item.Name, it.singular)
continue
}
didRemove, err := item.Remove(purge, force)
if err != nil {
return err
}
if didRemove {
log.Infof("Removed %s", item.Name)
removed++
}
}
log.Infof("Removed %d %s", removed, it.name)
if removed > 0 {
log.Infof(ReloadMessage())
}
return nil
}
func (it cliItem) NewRemoveCmd() *cobra.Command {
cmd := &cobra.Command{
Use: coalesce.String(it.removeHelp.use, "remove [item]..."),
Short: coalesce.String(it.removeHelp.short, fmt.Sprintf("Remove given %s", it.oneOrMore)),
Long: coalesce.String(it.removeHelp.long, fmt.Sprintf("Remove one or more %s", it.name)),
Example: it.removeHelp.example,
Aliases: []string{"delete"},
DisableAutoGenTag: true,
ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
return compInstalledItems(it.name, args, toComplete)
},
RunE: it.Remove,
}
flags := cmd.Flags()
flags.Bool("purge", false, "Delete source file too")
flags.Bool("force", false, "Force remove: remove tainted and outdated files")
flags.Bool("all", false, fmt.Sprintf("Remove all the %s", it.name))
return cmd
}
func (it cliItem) Upgrade(cmd *cobra.Command, args []string) error {
flags := cmd.Flags()
force, err := flags.GetBool("force")
if err != nil {
return err
}
all, err := flags.GetBool("all")
if err != nil {
return err
}
hub, err := require.Hub(csConfig, require.RemoteHub(csConfig))
if err != nil {
return err
}
if all {
items, err := hub.GetInstalledItems(it.name)
if err != nil {
return err
}
updated := 0
for _, item := range items {
didUpdate, err := item.Upgrade(force)
if err != nil {
return err
}
if didUpdate {
updated++
}
}
log.Infof("Updated %d %s", updated, it.name)
if updated > 0 {
log.Infof(ReloadMessage())
}
return nil
}
if len(args) == 0 {
return fmt.Errorf("specify at least one %s to upgrade or '--all'", it.singular)
}
updated := 0
for _, itemName := range args {
item := hub.GetItem(it.name, itemName)
if item == nil {
return fmt.Errorf("can't find '%s' in %s", itemName, it.name)
}
didUpdate, err := item.Upgrade(force)
if err != nil {
return err
}
if didUpdate {
log.Infof("Updated %s", item.Name)
updated++
}
}
if updated > 0 {
log.Infof(ReloadMessage())
}
return nil
}
func (it cliItem) NewUpgradeCmd() *cobra.Command {
cmd := &cobra.Command{
Use: coalesce.String(it.upgradeHelp.use, "upgrade [item]..."),
Short: coalesce.String(it.upgradeHelp.short, fmt.Sprintf("Upgrade given %s", it.oneOrMore)),
Long: coalesce.String(it.upgradeHelp.long, fmt.Sprintf("Fetch and upgrade one or more %s from the hub", it.name)),
Example: it.upgradeHelp.example,
DisableAutoGenTag: true,
ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
return compInstalledItems(it.name, args, toComplete)
},
RunE: it.Upgrade,
}
flags := cmd.Flags()
flags.BoolP("all", "a", false, fmt.Sprintf("Upgrade all the %s", it.name))
flags.Bool("force", false, "Force upgrade: overwrite tainted and outdated files")
return cmd
}
func (it cliItem) Inspect(cmd *cobra.Command, args []string) error {
flags := cmd.Flags()
url, err := flags.GetString("url")
if err != nil {
return err
}
if url != "" {
csConfig.Cscli.PrometheusUrl = url
}
noMetrics, err := flags.GetBool("no-metrics")
if err != nil {
return err
}
hub, err := require.Hub(csConfig, nil)
if err != nil {
return err
}
for _, name := range args {
item := hub.GetItem(it.name, name)
if item == nil {
return fmt.Errorf("can't find '%s' in %s", name, it.name)
}
if err = InspectItem(item, !noMetrics); err != nil {
return err
}
if it.inspectDetail != nil {
if err = it.inspectDetail(item); err != nil {
return err
}
}
}
return nil
}
func (it cliItem) NewInspectCmd() *cobra.Command {
cmd := &cobra.Command{
Use: coalesce.String(it.inspectHelp.use, "inspect [item]..."),
Short: coalesce.String(it.inspectHelp.short, fmt.Sprintf("Inspect given %s", it.oneOrMore)),
Long: coalesce.String(it.inspectHelp.long, fmt.Sprintf("Inspect the state of one or more %s", it.name)),
Example: it.inspectHelp.example,
Args: cobra.MinimumNArgs(1),
DisableAutoGenTag: true,
ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
return compInstalledItems(it.name, args, toComplete)
},
RunE: it.Inspect,
}
flags := cmd.Flags()
flags.StringP("url", "u", "", "Prometheus url")
flags.Bool("no-metrics", false, "Don't show metrics (when cscli.output=human)")
return cmd
}
func (it cliItem) List(cmd *cobra.Command, args []string) error {
flags := cmd.Flags()
all, err := flags.GetBool("all")
if err != nil {
return err
}
hub, err := require.Hub(csConfig, nil)
if err != nil {
return err
}
items := make(map[string][]*cwhub.Item)
items[it.name], err = selectItems(hub, it.name, args, !all)
if err != nil {
return err
}
if err = listItems(color.Output, []string{it.name}, items, false); err != nil {
return err
}
return nil
}
func (it cliItem) NewListCmd() *cobra.Command {
cmd := &cobra.Command{
Use: coalesce.String(it.listHelp.use, "list [item... | -a]"),
Short: coalesce.String(it.listHelp.short, fmt.Sprintf("List %s", it.oneOrMore)),
Long: coalesce.String(it.listHelp.long, fmt.Sprintf("List of installed/available/specified %s", it.name)),
Example: it.listHelp.example,
DisableAutoGenTag: true,
RunE: it.List,
}
flags := cmd.Flags()
flags.BoolP("all", "a", false, "List disabled items as well")
return cmd
}