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Implement commit signature validation

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This commit is contained in:
Max Ignatenko 2024-04-06 21:50:32 +01:00
parent f9dde4db39
commit ff0ea08296
9 changed files with 409 additions and 214 deletions
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26
util/resolver/resolver.go
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@ -59,10 +59,10 @@ func (r *fallbackResolver) FlushCacheFor(did string) {
}
}
func GetPDSEndpoint(ctx context.Context, did string) (*url.URL, error) {
func GetPDSEndpointAndPublicKey(ctx context.Context, did string) (*url.URL, string, error) {
doc, err := GetDocument(ctx, did)
if err != nil {
return nil, fmt.Errorf("resolving did %q: %w", did, err)
return nil, "", fmt.Errorf("resolving did %q: %w", did, err)
}
pdsHost := ""
@ -73,14 +73,28 @@ func GetPDSEndpoint(ctx context.Context, did string) (*url.URL, error) {
pdsHost = srv.ServiceEndpoint
}
if pdsHost == "" {
return nil, fmt.Errorf("did not find any PDS in DID Document")
return nil, "", fmt.Errorf("did not find any PDS in DID Document")
}
u, err := url.Parse(pdsHost)
if err != nil {
return nil, fmt.Errorf("PDS endpoint (%q) is an invalid URL: %w", pdsHost, err)
return nil, "", fmt.Errorf("PDS endpoint (%q) is an invalid URL: %w", pdsHost, err)
}
if u.Host == "" {
return nil, fmt.Errorf("PDS endpoint (%q) doesn't have a host part", pdsHost)
return nil, "", fmt.Errorf("PDS endpoint (%q) doesn't have a host part", pdsHost)
}
return u, nil
key := ""
for _, m := range doc.VerificationMethod {
if m.ID != fmt.Sprintf("%s#atproto", did) {
continue
}
if m.PublicKeyMultibase == nil {
continue
}
key = *m.PublicKeyMultibase
}
if key == "" {
return nil, "", fmt.Errorf("didn't find public key")
}
return u, key, nil
}