1 files changed, 78 insertions, 0 deletions
diff --git a/devtools/client/netmonitor/test/xpcshell/test_request-utils-parseJSON.js b/devtools/client/netmonitor/test/xpcshell/test_request-utils-parseJSON.js
new file mode 100644
index 0000000000..78fd722522
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+++ b/devtools/client/netmonitor/test/xpcshell/test_request-utils-parseJSON.js
@@ -0,0 +1,78 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test devtools/client/netmonitor/src/utils/request-utils.js function
+// |parseJSON| ensure that it correctly handles plain JSON, Base 64
+// encoded JSON, and JSON that has XSSI protection prepended to it
+
+"use strict";
+
+const { require } = ChromeUtils.importESModule(
+  "resource://devtools/shared/loader/Loader.sys.mjs"
+);
+const {
+  parseJSON,
+} = require("resource://devtools/client/netmonitor/src/utils/request-utils.js");
+
+function run_test() {
+  const validJSON = '{"item":{"subitem":true},"seconditem":"bar"}';
+  const base64JSON = btoa(validJSON);
+  const parsedJSON = { item: { subitem: true }, seconditem: "bar" };
+  const googleStyleXSSI = ")]}'\n";
+  const facebookStyleXSSI = "for (;;);";
+  const notRealXSSIPrevention = "sdgijsdjg";
+  const while1XSSIPrevention = "while(1)";
+
+  const parsedValidJSON = parseJSON(validJSON);
+  info(JSON.stringify(parsedValidJSON));
+  ok(
+    parsedValidJSON.json.item.subitem == parsedJSON.item.subitem &&
+      parsedValidJSON.json.seconditem == parsedJSON.seconditem,
+    "plain JSON is parsed correctly"
+  );
+
+  const parsedBase64JSON = parseJSON(base64JSON);
+  ok(
+    parsedBase64JSON.json.item.subitem === parsedJSON.item.subitem &&
+      parsedBase64JSON.json.seconditem === parsedJSON.seconditem,
+    "base64 encoded JSON is parsed correctly"
+  );
+
+  const parsedGoogleStyleXSSIJSON = parseJSON(googleStyleXSSI + validJSON);
+  ok(
+    parsedGoogleStyleXSSIJSON.strippedChars === googleStyleXSSI &&
+      parsedGoogleStyleXSSIJSON.error === void 0 &&
+      parsedGoogleStyleXSSIJSON.json.item.subitem === parsedJSON.item.subitem &&
+      parsedGoogleStyleXSSIJSON.json.seconditem === parsedJSON.seconditem,
+    "Google style XSSI sequence correctly removed and returned"
+  );
+
+  const parsedFacebookStyleXSSIJSON = parseJSON(facebookStyleXSSI + validJSON);
+  ok(
+    parsedFacebookStyleXSSIJSON.strippedChars === facebookStyleXSSI &&
+      parsedFacebookStyleXSSIJSON.error === void 0 &&
+      parsedFacebookStyleXSSIJSON.json.item.subitem ===
+        parsedJSON.item.subitem &&
+      parsedFacebookStyleXSSIJSON.json.seconditem === parsedJSON.seconditem,
+    "Facebook style XSSI sequence correctly removed and returned"
+  );
+
+  const parsedWhileXSSIJSON = parseJSON(while1XSSIPrevention + validJSON);
+  ok(
+    parsedWhileXSSIJSON.strippedChars === while1XSSIPrevention &&
+      parsedWhileXSSIJSON.error === void 0 &&
+      parsedWhileXSSIJSON.json.item.subitem === parsedJSON.item.subitem &&
+      parsedWhileXSSIJSON.json.seconditem === parsedJSON.seconditem,
+    "While XSSI sequence correctly removed and returned"
+  );
+  const parsedInvalidJson = parseJSON(notRealXSSIPrevention + validJSON);
+  ok(
+    !parsedInvalidJson.json && !parsedInvalidJson.strippedChars,
+    "Parsed invalid JSON does not return a data object or strippedChars"
+  );
+  equal(
+    parsedInvalidJson.error.name,
+    "SyntaxError",
+    "Parsing invalid JSON yeilds a SyntaxError"
+  );
+}