Bug 1683131 - Add a test for telemetry r=necko-reviewers,dragana

Depends on D103028

Differential Revision: https://phabricator.services.mozilla.com/D104507

netwerk/test/browser/browser.ini

@@ -5,6 +5,22 @@ support-files =
   redirect.sjs
   auth_post.sjs
   post.html
+  res.css
+  res.css^headers^
+  res.csv
+  res.csv^headers^
+  res_206.html
+  res_206.html^headers^
+  res_nosniff.html
+  res_nosniff.html^headers^
+  res_img.png
+  res_nosniff2.html
+  res_nosniff2.html^headers^
+  res_not_ok.html
+  res_not_ok.html^headers^
+  res.unknown
+  res_img_unknown.png
+  res.mp3
 
 [browser_about_cache.js]
 [browser_bug1535877.js]
@@ -13,6 +29,7 @@ support-files =
 skip-if = !crashreporter 
   (e10s && debug && os == "linux" && bits == 64) 
   debug # Bug 1370783
+[browser_opaque_response_blocking_telemetry.js]
 [browser_post_file.js]
 [browser_nsIFormPOSTActionChannel.js]
 skip-if = e10s # protocol handler and channel does not work in content process

netwerk/test/browser/browser_opaque_response_blocking_telemetry.js

@@ -0,0 +1,107 @@
+/* vim:set ts=2 sw=2 sts=2 et: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const DIRPATH = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content/",
+  ""
+);
+
+const ORIGIN1 = "https://example.com";
+const URL = `${ORIGIN1}/${DIRPATH}dummy.html`;
+
+// Cross origin urls.
+const ORIGIN2 = "https://example.org";
+const SAFE_LISTED_URL = `${ORIGIN2}/${DIRPATH}res.css`;
+const BLOCKED_LISTED_NEVER_SNIFFED_URL = `${ORIGIN2}/${DIRPATH}res.csv`;
+const BLOCKED_LISTED_206_URL = `${ORIGIN2}/${DIRPATH}res_206.html`;
+const BLOCKED_LISTED_NOSNIFF_URL = `${ORIGIN2}/${DIRPATH}res_nosniff.html`;
+const IMAGE_URL = `${ORIGIN2}/${DIRPATH}res_img.png`;
+const NOSNIFF_URL = `${ORIGIN2}/${DIRPATH}res_nosniff2.html`;
+const NOT_OK_URL = `${ORIGIN2}/${DIRPATH}res_not_ok.html`;
+const UNKNOWN_URL = `${ORIGIN2}/${DIRPATH}res.unknown`;
+const IMAGE_UNKNOWN_URL = `${ORIGIN2}/${DIRPATH}res_img_unknown.png`;
+
+add_task(async function() {
+  await SpecialPowers.pushPrefEnv({
+    set: [["browser.opaqueResponseBlocking", true]],
+  });
+  let histogram = Services.telemetry.getKeyedHistogramById(
+    "OPAQUE_RESPONSE_BLOCKING"
+  );
+  const testcases = [
+    {
+      url: SAFE_LISTED_URL,
+      key: "Allowed_SafeListed",
+    },
+    {
+      url: BLOCKED_LISTED_NEVER_SNIFFED_URL,
+      key: "Blocked_BlockListedNeverSniffed",
+    },
+    {
+      url: BLOCKED_LISTED_206_URL,
+      key: "Blocked_206AndBlockListed",
+    },
+    {
+      url: BLOCKED_LISTED_NOSNIFF_URL,
+      key: "Blocked_NosniffAndEitherBlockListedOrTextPlain",
+    },
+    {
+      url: IMAGE_URL,
+      key: "Allowed_SniffAsImageOrAudioOrVideo",
+    },
+    {
+      url: NOSNIFF_URL,
+      key: "Blocked_NoSniffHeaderAfterSniff",
+    },
+    {
+      url: NOT_OK_URL,
+      key: "Blocked_ResponseNotOk",
+    },
+    {
+      url: UNKNOWN_URL,
+      key: "Allowed_FailtoGetMIMEType",
+    },
+    {
+      url: IMAGE_UNKNOWN_URL,
+      key: "Blocked_ContentTypeBeginsWithImageOrVideoOrAudio",
+    },
+  ];
+
+  for (let testcase of testcases) {
+    histogram.clear();
+
+    await BrowserTestUtils.withNewTab(URL, async function(browser) {
+      BrowserTestUtils.loadURI(browser, URL);
+      await BrowserTestUtils.browserLoaded(browser);
+
+      info(`Fetching cross-origin url: ${testcase.url}.`);
+
+      await SpecialPowers.spawn(
+        browser,
+        [testcase.url, testcase.media],
+        async (url, media) => {
+          try {
+            await content.window.fetch(url);
+          } catch (e) {
+            /* Ignore result */
+          }
+        }
+      );
+    });
+
+    info(`Validating if the telemetry probe has been reported.`);
+
+    let snapshot = histogram.snapshot();
+    let keys = testcase.keys;
+    if (!keys) {
+      keys = [testcase.key];
+    }
+    for (let key of keys) {
+      ok(snapshot.hasOwnProperty(key), `Should have recorded key ${key}`);
+    }
+  }
+});

netwerk/test/browser/res.css

@@ -0,0 +1,4 @@
+/* François was here. */
+#purple-text {
+  color: purple;
+}

netwerk/test/browser/res.css^headers^

@@ -0,0 +1 @@
+Content-Type: text/css; charset=utf-8

netwerk/test/browser/res.csv

@@ -0,0 +1 @@
+1,2,3

netwerk/test/browser/res.csv^headers^

@@ -0,0 +1 @@
+Content-Type: text/csv;

netwerk/test/browser/res.unknown

@@ -0,0 +1 @@
+unknown

netwerk/test/browser/res_206.html

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+
+<head>
+<meta http-equiv="content-type" content="text/html; charset=utf-8">
+</head>
+
+<html>
+<body>
+  <p>Dummy Page</p>
+</body>
+</html>

netwerk/test/browser/res_206.html^headers^

@@ -0,0 +1,2 @@
+HTTP 206
+Content-Type: text/html;

netwerk/test/browser/res_img_unknown.png

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+
+<head>
+<meta http-equiv="content-type" content="text/html; charset=utf-8">
+</head>
+
+<html>
+<body>
+  <p>Dummy Page</p>
+</body>
+</html>

netwerk/test/browser/res_nosniff.html

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+
+<head>
+<meta http-equiv="content-type" content="text/html; charset=utf-8">
+</head>
+
+<html>
+<body>
+  <p>Dummy Page</p>
+</body>
+</html>

netwerk/test/browser/res_nosniff.html^headers^

@@ -0,0 +1,2 @@
+X-Content-Type-Options: nosniff
+Content-Type: text/html;

netwerk/test/browser/res_nosniff2.html

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+
+<head>
+<meta http-equiv="content-type" content="text/html; charset=utf-8">
+</head>
+
+<html>
+<body>
+  <p>Dummy Page</p>
+</body>
+</html>

netwerk/test/browser/res_nosniff2.html^headers^

@@ -0,0 +1,2 @@
+X-Content-Type-Options: nosniff
+Content-Type: text/test

netwerk/test/browser/res_not_ok.html

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+
+<head>
+<meta http-equiv="content-type" content="text/html; charset=utf-8">
+</head>
+
+<html>
+<body>
+  <p>Dummy Page</p>
+</body>
+</html>

netwerk/test/browser/res_not_ok.html^headers^

@@ -0,0 +1 @@
+HTTP 302 Found