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package abi
import (
"context"
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"os"
"strings"
"github.com/containers/podman/v4/pkg/domain/entities"
"github.com/containers/podman/v4/pkg/trust"
"github.com/sirupsen/logrus"
)
func (ir *ImageEngine) ShowTrust(ctx context.Context, args []string, options entities.ShowTrustOptions) (*entities.ShowTrustReport, error) {
var (
err error
report entities.ShowTrustReport
)
policyPath := trust.DefaultPolicyPath(ir.Libpod.SystemContext())
if len(options.PolicyPath) > 0 {
policyPath = options.PolicyPath
}
report.Raw, err = ioutil.ReadFile(policyPath)
if err != nil {
return nil, err
}
if options.Raw {
return &report, nil
}
report.SystemRegistriesDirPath = trust.RegistriesDirPath(ir.Libpod.SystemContext())
if len(options.RegistryPath) > 0 {
report.SystemRegistriesDirPath = options.RegistryPath
}
policyContentStruct, err := trust.GetPolicy(policyPath)
if err != nil {
return nil, fmt.Errorf("could not read trust policies: %w", err)
}
report.Policies, err = getPolicyShowOutput(policyContentStruct, report.SystemRegistriesDirPath)
if err != nil {
return nil, fmt.Errorf("could not show trust policies: %w", err)
}
return &report, nil
}
func (ir *ImageEngine) SetTrust(ctx context.Context, args []string, options entities.SetTrustOptions) error {
var (
policyContentStruct trust.PolicyContent
newReposContent []trust.RepoContent
)
trustType := options.Type
if trustType == "accept" {
trustType = "insecureAcceptAnything"
}
pubkeysfile := options.PubKeysFile
if len(pubkeysfile) == 0 && trustType == "signedBy" {
return errors.New("at least one public key must be defined for type 'signedBy'")
}
policyPath := trust.DefaultPolicyPath(ir.Libpod.SystemContext())
if len(options.PolicyPath) > 0 {
policyPath = options.PolicyPath
}
_, err := os.Stat(policyPath)
if !os.IsNotExist(err) {
policyContent, err := ioutil.ReadFile(policyPath)
if err != nil {
return err
}
if err := json.Unmarshal(policyContent, &policyContentStruct); err != nil {
return errors.New("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.New("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 fmt.Errorf("error setting trust policy: %w", err)
}
return ioutil.WriteFile(policyPath, data, 0644)
}
func getPolicyShowOutput(policyContentStruct trust.PolicyContent, systemRegistriesDirPath string) ([]*trust.Policy, error) {
var output []*trust.Policy
registryConfigs, err := trust.LoadAndMergeConfig(systemRegistriesDirPath)
if err != nil {
return nil, err
}
if len(policyContentStruct.Default) > 0 {
defaultPolicyStruct := trust.Policy{
Transport: "all",
Name: "* (default)",
RepoName: "default",
Type: trustTypeDescription(policyContentStruct.Default[0].Type),
}
output = append(output, &defaultPolicyStruct)
}
for transport, transval := range policyContentStruct.Transports {
if transport == "docker" {
transport = "repository"
}
for repo, repoval := range transval {
tempTrustShowOutput := trust.Policy{
Name: repo,
RepoName: repo,
Transport: transport,
Type: trustTypeDescription(repoval[0].Type),
}
// TODO - keyarr is not used and I don't know its intent; commenting out for now for someone to fix later
// 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(repoele.KeyData)...)
}
}
tempTrustShowOutput.GPGId = strings.Join(uids, ", ")
registryNamespace := trust.HaveMatchRegistry(repo, registryConfigs)
if registryNamespace != nil {
tempTrustShowOutput.SignatureStore = registryNamespace.SigStore
}
output = append(output, &tempTrustShowOutput)
}
}
return output, 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
}
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