GoogleCloud: re fetch token on expiry

dots/.config/quickshell/ii/services/GoogleCloud.qml

@@ -12,6 +12,7 @@ Singleton {
     property bool keyError: false
     property bool keyReady: false
     property string token: ""
+    property date tokenExpiry
     property bool tokenError: false
     property bool tokenReady: false
     readonly property string projectId: keyProjectId
@@ -21,7 +22,14 @@ Singleton {
     readonly property string tokenForKeyScriptPath: Quickshell.shellPath("services/gCloud/token-from-key-venv.sh")
 
     function load() {
-        // Dummy for init
+        // Init load will be handled by Component.onCompleted
+        if (!tokenReady) return;
+        // We just reload if key expired
+        if (new Date() >= root.tokenExpiry) {
+            root.tokenReady = false;
+            root.keyReady = false;
+            loadKeyIfPossible();
+        }
     }
 
     function setKeyJson(str: string): bool {
@@ -41,20 +49,26 @@ Singleton {
             return;
         }
         tokenProc.runSequence([(() => { // prep token fetcher
-                    tokenProc.environment.SERVICE_KEY_CONTENT = JSON.stringify(root.keyContent);
-                    tokenProc.command = [ //
-                        "bash", "-c" //
-                        , `${tokenForKeyScriptPath} "$SERVICE_KEY_CONTENT"`];
-                }), [] // run token fetcher
-            , (out => {
-                    if (out.startsWith("Error")) {
-                        root.tokenError = true;
-                    } else {
-                        root.tokenError = false;
-                        root.token = out.trim();
-                    }
-                    root.tokenReady = true;
-                })]);
+                tokenProc.environment.SERVICE_KEY_CONTENT = JSON.stringify(root.keyContent);
+                tokenProc.command = [ //
+                    "bash", "-c" //
+                    , `${tokenForKeyScriptPath} "$SERVICE_KEY_CONTENT"`];
+            }), //
+            [], // run token fetcher
+            ((out) => {
+                try {
+                    const data = JSON.parse(out)
+                    root.token = data.token
+                    // Js wants millis instead of seconds
+                    root.tokenExpiry = new Date(data.expiry * 1000) 
+                    root.tokenError = false;
+                } catch(e) {
+                    root.tokenError = true;
+                    print("[GoogleCloud] Failed to parse token response: " + e)
+                }
+                root.tokenReady = true;
+            }
+            )]);
     }
 
     function loadKeyIfPossible() {

dots/.config/quickshell/ii/services/gCloud/token_from_key.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+import calendar
 import sys
 import json
 import google.auth.transport.requests
@@ -16,8 +17,15 @@ def get_token(json_str):
         # Refresh to get the access token
         request = google.auth.transport.requests.Request()
         scoped_creds.refresh(request)
+
+        token = scoped_creds.token
+        expiry = int(calendar.timegm(scoped_creds.expiry.utctimetuple()))
         
-        print(scoped_creds.token)
+        print(json.dumps({
+            "token": token,
+            "expiry": expiry
+        }))
+
     except Exception as e:
         sys.stderr.write(f"Error: {str(e)}\n")
         sys.exit(1)