feat: add app .auth/login/{provider} rule

app_auth_login_provider/function.json

@@ -0,0 +1,19 @@
+{
+  "bindings": [
+    {
+      "authLevel": "function",
+      "type": "httpTrigger",
+      "direction": "in",
+      "name": "req",
+      "methods": [
+        "get"
+      ],
+      "route": "app/.auth/login/{provider:regex(aad|github|twitter|google|facebook)}"
+    },
+    {
+      "type": "http",
+      "direction": "out",
+      "name": "res"
+    }
+  ]
+}

app_auth_login_provider/index.js

@@ -0,0 +1,26 @@
+const { response } = require("../utils");
+
+module.exports = async function (context, req) {
+  const { provider } = context.bindingData;
+  const { post_login_redirect_uri } = req.query;
+
+  const location = `http://localhost:4242/.redirect/${provider}?hostName=localhost&staticWebAppsAuthNonce=${context.invocationId}`;
+  context.res = response({
+    context,
+    status: 302,
+    cookies: [
+      {
+        name: "StaticWebAppsAuthContextCookie",
+        value: "KKK",
+        path: "/",
+        secure: true,
+        HttpOnly: true,
+        domain: "localhost",
+        SameSite: "None",
+      },
+    ],
+    headers: {
+      location,
+    },
+  });
+};