Attempt to using Nakama as replacement of Low-Level ENet

addons/com.heroiclabs.nakama/Satori/SatoriSession.gd

@@ -0,0 +1,107 @@
+extends  SatoriAsyncResult
+class_name SatoriSession
+
+var _token: String = ""
+var token: String:
+    get:
+        return _token
+
+var _refresh_token: String = ""
+var refresh_token: String:
+    get:
+        return _refresh_token
+
+var _expire_time: int = 0
+var expire_time: int:
+    get:
+        return _expire_time
+
+var expired: bool:
+    get:
+        return is_expired()
+
+var _refresh_expire_time: int = 0
+var refresh_expire_time: int:
+    get:
+        return _refresh_expire_time
+
+var _identity_id: String = ""
+var identity_id: String:
+    get:
+        return _identity_id
+
+var _valid : bool = false
+var valid : bool:
+    get:
+        return _valid
+
+func is_expired() -> bool:
+    return _expire_time < Time.get_unix_time_from_system()
+
+func would_expire_in(p_secs : int) -> bool:
+    return _expire_time < Time.get_unix_time_from_system() + p_secs
+
+func has_refresh_expired(offset: float) -> bool:
+    return _expire_time < offset
+
+func is_refresh_expired() -> bool:
+    return _refresh_expire_time < Time.get_unix_time_from_system()
+
+func is_valid():
+    return _valid
+
+# Initializes a new instance of the SatoriSession class.
+# 
+# @param p_token - The authentication token.
+# @param p_refresh_token - The refresh token.
+# @param p_exception - The exception to be thrown, if any.
+func _init(p_token = null, p_refresh_token = null, p_exception = null):
+    super(p_exception)
+    
+    _refresh_expire_time = 0
+    if p_token:
+        _update(p_token, p_refresh_token)
+
+func _update(p_token, p_refresh_token):
+    _token = p_token
+    _refresh_token = p_refresh_token
+    
+    var decoded = _jwt_unpack(p_token)
+    if decoded.is_empty():
+        _valid = false
+        return
+    
+    _valid = true
+    _expire_time = int(decoded.get("exp", 0))
+    _identity_id = str(decoded.get("iid", ""))
+    _refresh_expire_time = int(_jwt_unpack(refresh_token).get("exp", 0)) if !refresh_token.is_empty() else 0
+
+func _to_string():
+    if is_exception():
+        return get_exception()._to_string()
+    
+    return "Session<AuthToken=%s, ExpireTime=%d, RefreshToken=%s, RefreshExpireTime=%d, IdentityId=%s>" % [
+        _token, _expire_time, _refresh_token, _refresh_expire_time, identity_id]
+
+func _jwt_unpack(p_token : String) -> Dictionary:
+    # Hack decode JSON payload from JWT.
+    if p_token.find(".") == -1:
+        _ex = SatoriException.new("Missing payload: %s" % p_token)
+        return {}
+    var payload = p_token.split('.')[1];
+    var pad_length = ceil(payload.length() / 4.0) * 4;
+    # Pad base64
+    for i in range(0, pad_length - payload.length()):
+        payload += "="
+    payload = payload.replace("-", "+").replace("_", "/")
+    var unpacked = Marshalls.base64_to_utf8(payload)
+    
+    var json = JSON.new()
+    var error = json.parse(unpacked)
+
+    if error == OK:
+        var decoded = json.get_data()
+        if typeof(decoded) == TYPE_DICTIONARY:
+            return decoded
+    _ex = SatoriException.new("Unable to unpack token: %s" % p_token)
+    return {}