package main import ( "encoding/json" "io/ioutil" "os" "sort" "strings" "github.com/containers/buildah/pkg/formats" "github.com/containers/image/types" "github.com/containers/libpod/cmd/podman/cliconfig" "github.com/containers/libpod/cmd/podman/libpodruntime" "github.com/containers/libpod/libpod/image" "github.com/containers/libpod/pkg/trust" "github.com/pkg/errors" "github.com/sirupsen/logrus" "github.com/spf13/cobra" ) var ( setTrustCommand cliconfig.SetTrustValues showTrustCommand cliconfig.ShowTrustValues setTrustDescription = "Set default trust policy or add a new trust policy for a registry" _setTrustCommand = &cobra.Command{ Use: "set [flags] REGISTRY", Short: "Set default trust policy or a new trust policy for a registry", Long: setTrustDescription, Example: "", RunE: func(cmd *cobra.Command, args []string) error { setTrustCommand.InputArgs = args setTrustCommand.GlobalFlags = MainGlobalOpts return setTrustCmd(&setTrustCommand) }, } showTrustDescription = "Display trust policy for the system" _showTrustCommand = &cobra.Command{ Use: "show [flags] [REGISTRY]", Short: "Display trust policy for the system", Long: showTrustDescription, RunE: func(cmd *cobra.Command, args []string) error { showTrustCommand.InputArgs = args showTrustCommand.GlobalFlags = MainGlobalOpts return showTrustCmd(&showTrustCommand) }, Example: "", } ) func init() { setTrustCommand.Command = _setTrustCommand setTrustCommand.SetHelpTemplate(HelpTemplate()) setTrustCommand.SetUsageTemplate(UsageTemplate()) showTrustCommand.Command = _showTrustCommand showTrustCommand.SetHelpTemplate(HelpTemplate()) showTrustCommand.SetUsageTemplate(UsageTemplate()) setFlags := setTrustCommand.Flags() setFlags.StringVar(&setTrustCommand.PolicyPath, "policypath", "", "") setFlags.MarkHidden("policypath") setFlags.StringSliceVarP(&setTrustCommand.PubKeysFile, "pubkeysfile", "f", []string{}, `Path of installed public key(s) to trust for TARGET. Absolute path to keys is added to policy.json. May used multiple times to define multiple public keys. File(s) must exist before using this command`) setFlags.StringVarP(&setTrustCommand.TrustType, "type", "t", "signedBy", "Trust type, accept values: signedBy(default), accept, reject") showFlags := showTrustCommand.Flags() showFlags.BoolVarP(&showTrustCommand.Json, "json", "j", false, "Output as json") showFlags.StringVar(&showTrustCommand.PolicyPath, "policypath", "", "") showFlags.BoolVar(&showTrustCommand.Raw, "raw", false, "Output raw policy file") showFlags.MarkHidden("policypath") showFlags.StringVar(&showTrustCommand.RegistryPath, "registrypath", "", "") showFlags.MarkHidden("registrypath") } func showTrustCmd(c *cliconfig.ShowTrustValues) error { runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand) if err != nil { return errors.Wrapf(err, "could not create runtime") } var ( policyPath string systemRegistriesDirPath string outjson interface{} ) if c.Flag("policypath").Changed { policyPath = c.PolicyPath } else { policyPath = trust.DefaultPolicyPath(runtime.SystemContext()) } policyContent, err := ioutil.ReadFile(policyPath) if err != nil { return errors.Wrapf(err, "unable to read %s", policyPath) } if c.Flag("registrypath").Changed { systemRegistriesDirPath = c.RegistryPath } else { systemRegistriesDirPath = trust.RegistriesDirPath(runtime.SystemContext()) } if c.Raw { _, err := os.Stdout.Write(policyContent) if err != nil { return errors.Wrap(err, "could not read raw trust policies") } return nil } policyContentStruct, err := trust.GetPolicy(policyPath) if err != nil { return errors.Wrapf(err, "could not read trust policies") } if c.Json { policyJSON, err := getPolicyJSON(policyContentStruct, systemRegistriesDirPath) if err != nil { return errors.Wrapf(err, "could not show trust policies in JSON format") } outjson = policyJSON out := formats.JSONStruct{Output: outjson} return formats.Writer(out).Out() } showOutputMap, err := getPolicyShowOutput(policyContentStruct, systemRegistriesDirPath) if err != nil { return errors.Wrapf(err, "could not show trust policies") } out := formats.StdoutTemplateArray{Output: showOutputMap, Template: "{{.Repo}}\t{{.Trusttype}}\t{{.GPGid}}\t{{.Sigstore}}"} return formats.Writer(out).Out() } func setTrustCmd(c *cliconfig.SetTrustValues) error { runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand) if err != nil { return errors.Wrapf(err, "could not create runtime") } var ( policyPath string policyContentStruct trust.PolicyContent newReposContent []trust.RepoContent ) args := c.InputArgs if len(args) != 1 { return errors.Errorf("default or a registry name must be specified") } valid, err := image.IsValidImageURI(args[0]) if err != nil || !valid { return errors.Wrapf(err, "invalid image uri %s", args[0]) } trusttype := c.TrustType if !isValidTrustType(trusttype) { return errors.Errorf("invalid choice: %s (choose from 'accept', 'reject', 'signedBy')", trusttype) } if trusttype == "accept" { trusttype = "insecureAcceptAnything" } pubkeysfile := c.PubKeysFile if len(pubkeysfile) == 0 && trusttype == "signedBy" { return errors.Errorf("At least one public key must be defined for type 'signedBy'") } if c.Flag("policypath").Changed { policyPath = c.PolicyPath } else { policyPath = trust.DefaultPolicyPath(runtime.SystemContext()) } _, err = os.Stat(policyPath) if !os.IsNotExist(err) { policyContent, err := ioutil.ReadFile(policyPath) if err != nil { return errors.Wrapf(err, "unable to read %s", policyPath) } if err := json.Unmarshal(policyContent, &policyContentStruct); err != nil { return errors.Errorf("could not read trust policies") } } if len(pubkeysfile) != 0 { for _, filepath := range pubkeysfile { newReposContent = append(newReposContent, trust.RepoContent{Type: trusttype, KeyType: "GPGKeys", KeyPath: filepath}) } } else { newReposContent = append(newReposContent, trust.RepoContent{Type: trusttype}) } if args[0] == "default" { policyContentStruct.Default = newReposContent } else { if len(policyContentStruct.Default) == 0 { return errors.Errorf("Default trust policy must be set.") } registryExists := false for transport, transportval := range policyContentStruct.Transports { _, registryExists = transportval[args[0]] if registryExists { policyContentStruct.Transports[transport][args[0]] = newReposContent break } } if !registryExists { if policyContentStruct.Transports == nil { policyContentStruct.Transports = make(map[string]trust.RepoMap) } if policyContentStruct.Transports["docker"] == nil { policyContentStruct.Transports["docker"] = make(map[string][]trust.RepoContent) } policyContentStruct.Transports["docker"][args[0]] = append(policyContentStruct.Transports["docker"][args[0]], newReposContent...) } } data, err := json.MarshalIndent(policyContentStruct, "", " ") if err != nil { return errors.Wrapf(err, "error setting trust policy") } err = ioutil.WriteFile(policyPath, data, 0644) if err != nil { return errors.Wrapf(err, "error setting trust policy") } return nil } func sortShowOutputMapKey(m map[string]trust.ShowOutput) []string { keys := make([]string, len(m)) i := 0 for k := range m { keys[i] = k i++ } sort.Strings(keys) return keys } func isValidTrustType(t string) bool { if t == "accept" || t == "insecureAcceptAnything" || t == "reject" || t == "signedBy" { return true } return false } func getDefaultPolicyPath() string { return trust.DefaultPolicyPath(&types.SystemContext{}) } func getPolicyJSON(policyContentStruct trust.PolicyContent, systemRegistriesDirPath string) (map[string]map[string]interface{}, error) { registryConfigs, err := trust.LoadAndMergeConfig(systemRegistriesDirPath) if err != nil { return nil, err } policyJSON := make(map[string]map[string]interface{}) if len(policyContentStruct.Default) > 0 { policyJSON["* (default)"] = make(map[string]interface{}) policyJSON["* (default)"]["type"] = policyContentStruct.Default[0].Type } for transname, transval := range policyContentStruct.Transports { for repo, repoval := range transval { policyJSON[repo] = make(map[string]interface{}) policyJSON[repo]["type"] = repoval[0].Type policyJSON[repo]["transport"] = transname keyarr := []string{} uids := []string{} for _, repoele := range repoval { if len(repoele.KeyPath) > 0 { keyarr = append(keyarr, repoele.KeyPath) uids = append(uids, trust.GetGPGIdFromKeyPath(repoele.KeyPath)...) } if len(repoele.KeyData) > 0 { keyarr = append(keyarr, string(repoele.KeyData)) uids = append(uids, trust.GetGPGIdFromKeyData(string(repoele.KeyData))...) } } policyJSON[repo]["keys"] = keyarr policyJSON[repo]["sigstore"] = "" registryNamespace := trust.HaveMatchRegistry(repo, registryConfigs) if registryNamespace != nil { policyJSON[repo]["sigstore"] = registryNamespace.SigStore } } } return policyJSON, nil } var typeDescription = map[string]string{"insecureAcceptAnything": "accept", "signedBy": "signed", "reject": "reject"} func trustTypeDescription(trustType string) string { trustDescription, exist := typeDescription[trustType] if !exist { logrus.Warnf("invalid trust type %s", trustType) } return trustDescription } func getPolicyShowOutput(policyContentStruct trust.PolicyContent, systemRegistriesDirPath string) ([]interface{}, error) { var output []interface{} registryConfigs, err := trust.LoadAndMergeConfig(systemRegistriesDirPath) if err != nil { return nil, err } trustShowOutputMap := make(map[string]trust.ShowOutput) if len(policyContentStruct.Default) > 0 { defaultPolicyStruct := trust.ShowOutput{ Repo: "default", Trusttype: trustTypeDescription(policyContentStruct.Default[0].Type), } trustShowOutputMap["* (default)"] = defaultPolicyStruct } for _, transval := range policyContentStruct.Transports { for repo, repoval := range transval { tempTrustShowOutput := trust.ShowOutput{ Repo: repo, Trusttype: repoval[0].Type, } keyarr := []string{} uids := []string{} for _, repoele := range repoval { if len(repoele.KeyPath) > 0 { keyarr = append(keyarr, repoele.KeyPath) uids = append(uids, trust.GetGPGIdFromKeyPath(repoele.KeyPath)...) } if len(repoele.KeyData) > 0 { keyarr = append(keyarr, string(repoele.KeyData)) uids = append(uids, trust.GetGPGIdFromKeyData(string(repoele.KeyData))...) } } tempTrustShowOutput.GPGid = strings.Join(uids, ", ") registryNamespace := trust.HaveMatchRegistry(repo, registryConfigs) if registryNamespace != nil { tempTrustShowOutput.Sigstore = registryNamespace.SigStore } trustShowOutputMap[repo] = tempTrustShowOutput } } sortedRepos := sortShowOutputMapKey(trustShowOutputMap) for _, reponame := range sortedRepos { showOutput, exists := trustShowOutputMap[reponame] if exists { output = append(output, interface{}(showOutput)) } } return output, nil }