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package trust
import (
"fmt"
"strings"
)
// Policy describes a basic trust policy configuration
type Policy struct {
Transport string `json:"transport"`
Name string `json:"name,omitempty"`
RepoName string `json:"repo_name,omitempty"`
Keys []string `json:"keys,omitempty"`
SignatureStore string `json:"sigstore,omitempty"`
Type string `json:"type"`
GPGId string `json:"gpg_id,omitempty"`
}
// PolicyDescription returns an user-focused description of the policy in policyPath and registries.d data from registriesDirPath.
func PolicyDescription(policyPath, registriesDirPath string) ([]*Policy, error) {
policyContentStruct, err := getPolicy(policyPath)
if err != nil {
return nil, fmt.Errorf("could not read trust policies: %w", err)
}
res, err := getPolicyShowOutput(policyContentStruct, registriesDirPath)
if err != nil {
return nil, fmt.Errorf("could not show trust policies: %w", err)
}
return res, nil
}
func getPolicyShowOutput(policyContentStruct policyContent, systemRegistriesDirPath string) ([]*Policy, error) {
var output []*Policy
registryConfigs, err := loadAndMergeConfig(systemRegistriesDirPath)
if err != nil {
return nil, err
}
if len(policyContentStruct.Default) > 0 {
defaultPolicyStruct := 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 := Policy{
Name: repo,
RepoName: repo,
Transport: transport,
Type: trustTypeDescription(repoval[0].Type),
}
uids := []string{}
for _, repoele := range repoval {
if len(repoele.KeyPath) > 0 {
uids = append(uids, getGPGIdFromKeyPath(repoele.KeyPath)...)
}
if len(repoele.KeyData) > 0 {
uids = append(uids, getGPGIdFromKeyData(repoele.KeyData)...)
}
}
tempTrustShowOutput.GPGId = strings.Join(uids, ", ")
registryNamespace := haveMatchRegistry(repo, registryConfigs)
if registryNamespace != nil {
tempTrustShowOutput.SignatureStore = registryNamespace.SigStore
}
output = append(output, &tempTrustShowOutput)
}
}
return output, nil
}
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