1 files changed, 87 insertions, 0 deletions
diff --git a/plugins/omemo/src/bundle.vala b/plugins/omemo/src/bundle.vala
new file mode 100644
index 00000000..211dc29b
--- /dev/null
+++ b/plugins/omemo/src/bundle.vala
@@ -0,0 +1,87 @@
+using Gee;
+using Signal;
+using Xmpp.Core;
+
+namespace Dino.Plugins.Omemo {
+
+public class Bundle {
+    private StanzaNode? node;
+
+    public Bundle(StanzaNode? node) {
+        this.node = node;
+    }
+
+    public int32 signed_pre_key_id { owned get {
+        if (node == null) return -1;
+        string id = node.get_deep_attribute("signedPreKeyPublic", "signedPreKeyId");
+        if (id == null) return -1;
+        return int.parse(id);
+    }}
+
+    public ECPublicKey? signed_pre_key { owned get {
+        if (node == null) return null;
+        string? key = node.get_deep_string_content("signedPreKeyPublic");
+        if (key == null) return null;
+        try {
+            return Plugin.context.decode_public_key(Base64.decode(key));
+        } catch (Error e) {
+            return null;
+        }
+    }}
+
+    public uint8[]? signed_pre_key_signature { owned get {
+        if (node == null) return null;
+        string? sig = node.get_deep_string_content("signedPreKeySignature");
+        if (sig == null) return null;
+        return Base64.decode(sig);
+    }}
+
+    public ECPublicKey? identity_key { owned get {
+        if (node == null) return null;
+        string? key = node.get_deep_string_content("identityKey");
+        if (key == null) return null;
+        try {
+            return Plugin.context.decode_public_key(Base64.decode(key));
+        } catch (Error e) {
+            return null;
+        }
+    }}
+
+    public ArrayList<PreKey> pre_keys { owned get {
+        ArrayList<PreKey> list = new ArrayList<PreKey>();
+        if (node == null || node.get_subnode("prekeys") == null) return list;
+        node.get_deep_subnodes("prekeys", "preKeyPublic")
+                .filter((node) => node.get_attribute("preKeyId") != null)
+                .map<PreKey>(PreKey.create)
+                .foreach((key) => list.add(key));
+        return list;
+    }}
+
+    public class PreKey {
+        private StanzaNode node;
+
+        public static PreKey create(owned StanzaNode node) {
+            return new PreKey(node);
+        }
+
+        public PreKey(StanzaNode node) {
+            this.node = node;
+        }
+
+        public int32 key_id { owned get {
+            return int.parse(node.get_attribute("preKeyId") ?? "-1");
+        }}
+
+        public ECPublicKey? key { owned get {
+            string? key = node.get_string_content();
+            if (key == null) return null;
+            try {
+                return Plugin.context.decode_public_key(Base64.decode(key));
+            } catch (Error e) {
+                return null;
+            }
+        }}
+    }
+}
+
+}
+\ No newline at end of file