Begin activitypub

1 files changed, 22 insertions, 0 deletions

diff --git a/server/helpers/custom-validators/activitypub/signature.ts b/server/helpers/custom-validators/activitypub/signature.ts
new file mode 100644
index 000000000..683ed2b1c
--- /dev/null
+++ b/server/helpers/custom-validators/activitypub/signature.ts
@@ -0,0 +1,22 @@
+import { exists } from '../misc'
+import { isActivityPubUrlValid } from './misc'
+
+function isSignatureTypeValid (signatureType: string) {
+  return exists(signatureType) && signatureType === 'GraphSignature2012'
+}
+
+function isSignatureCreatorValid (signatureCreator: string) {
+  return exists(signatureCreator) && isActivityPubUrlValid(signatureCreator)
+}
+
+function isSignatureValueValid (signatureValue: string) {
+  return exists(signatureValue) && signatureValue.length > 0
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  isSignatureTypeValid,
+  isSignatureCreatorValid,
+  isSignatureValueValid
+}