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path: root/dom/security/test/referrer-policy/img_referrer_testserver.sjs
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var BASE_URL =
  "example.com/tests/dom/security/test/referrer-policy/img_referrer_testserver.sjs";
const IMG_BYTES = atob(
  "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
);

function createTestUrl(aPolicy, aAction, aName, aContent) {
  var content = aContent || "text";
  return (
    "http://" +
    BASE_URL +
    "?" +
    "action=" +
    aAction +
    "&" +
    "policy=" +
    aPolicy +
    "&" +
    "name=" +
    aName +
    "&" +
    "content=" +
    content
  );
}

function createTestPage(aHead, aImgPolicy, aName) {
  var _createTestUrl = createTestUrl.bind(null, aImgPolicy, "test", aName);

  return (
    "<!DOCTYPE HTML>\n\
         <html>" +
    aHead +
    '<body>\n\
             <img src="' +
    _createTestUrl("img") +
    '" referrerpolicy="' +
    aImgPolicy +
    '" id="image"></img>\n\
             <script>' +
    // LOAD EVENT (of the test)
    // fires when the img resource for the page is loaded
    'window.addEventListener("load", function() {\n\
                 parent.postMessage("childLoadComplete", "http://mochi.test:8888");\n\
               }.bind(window), false);' +
    "</script>\n\
           </body>\n\
         </html>"
  );
}

// Creates the following test cases for the specified referrer
// policy combination:
//   <img> with referrer
function createTest(aPolicy, aImgPolicy, aName) {
  var headString = "<head>";
  if (aPolicy) {
    headString += '<meta name="referrer" content="' + aPolicy + '">';
  }

  headString += "<script></script>";

  return createTestPage(headString, aImgPolicy, aName);
}

// testing regular load img with referrer policy
// speculative parser should not kick in here
function createTest2(aImgPolicy, name) {
  return createTestPage("", aImgPolicy, name);
}

function createTest3(aImgPolicy1, aImgPolicy2, aImgPolicy3, aName) {
  return (
    '<!DOCTYPE HTML>\n\
         <html>\n\
           <body>\n\
             <img src="' +
    createTestUrl(aImgPolicy1, "test", aName + aImgPolicy1) +
    '" referrerpolicy="' +
    aImgPolicy1 +
    '" id="image"></img>\n\
             <img src="' +
    createTestUrl(aImgPolicy2, "test", aName + aImgPolicy2) +
    '" referrerpolicy="' +
    aImgPolicy2 +
    '" id="image"></img>\n\
             <img src="' +
    createTestUrl(aImgPolicy3, "test", aName + aImgPolicy3) +
    '" referrerpolicy="' +
    aImgPolicy3 +
    '" id="image"></img>\n\
             <script>\n\
               var _numLoads = 0;' +
    // LOAD EVENT (of the test)
    // fires when the img resource for the page is loaded
    'window.addEventListener("load", function() {\n\
                  parent.postMessage("childLoadComplete", "http://mochi.test:8888");\n\
               }.bind(window), false);' +
    "</script>\n\
           </body>\n\
         </html>"
  );
}

function createTestPage2(aHead, aPolicy, aName) {
  return (
    "<!DOCTYPE HTML>\n\
         <html>" +
    aHead +
    '<body>\n\
             <img src="' +
    createTestUrl(aPolicy, "test", aName) +
    '" id="image"></img>\n\
             <script>' +
    // LOAD EVENT (of the test)
    // fires when the img resource for the page is loaded
    'window.addEventListener("load", function() {\n\
                 parent.postMessage("childLoadComplete", "http://mochi.test:8888");\n\
               }.bind(window), false);' +
    "</script>\n\
           </body>\n\
         </html>"
  );
}

function createTestPage3(aHead, aPolicy, aName) {
  return (
    "<!DOCTYPE HTML>\n\
         <html>" +
    aHead +
    "<body>\n\
             <script>" +
    'var image = new Image();\n\
               image.src = "' +
    createTestUrl(aPolicy, "test", aName, "image") +
    '";\n\
               image.referrerPolicy = "' +
    aPolicy +
    '";\n\
               image.onload = function() {\n\
                 window.parent.postMessage("childLoadComplete", "http://mochi.test:8888");\n\
               }\n\
               document.body.appendChild(image);' +
    "</script>\n\
           </body>\n\
         </html>"
  );
}

function createTestPage4(aHead, aPolicy, aName) {
  return (
    "<!DOCTYPE HTML>\n\
         <html>" +
    aHead +
    "<body>\n\
             <script>" +
    'var image = new Image();\n\
               image.referrerPolicy = "' +
    aPolicy +
    '";\n\
               image.src = "' +
    createTestUrl(aPolicy, "test", aName, "image") +
    '";\n\
               image.onload = function() {\n\
                 window.parent.postMessage("childLoadComplete", "http://mochi.test:8888");\n\
               }\n\
               document.body.appendChild(image);' +
    "</script>\n\
           </body>\n\
         </html>"
  );
}

function createSetAttributeTest1(aPolicy, aImgPolicy, aName) {
  var headString = "<head>";
  headString += '<meta name="referrer" content="' + aPolicy + '">';
  headString += "<script></script>";

  return createTestPage3(headString, aImgPolicy, aName);
}

function createSetAttributeTest2(aPolicy, aImgPolicy, aName) {
  var headString = "<head>";
  headString += '<meta name="referrer" content="' + aPolicy + '">';
  headString += "<script></script>";

  return createTestPage4(headString, aImgPolicy, aName);
}

function createTest4(aPolicy, aName) {
  var headString = "<head>";
  headString += '<meta name="referrer" content="' + aPolicy + '">';
  headString += "<script></script>";

  return createTestPage2(headString, aPolicy, aName);
}

function createTest5(aPolicy, aName) {
  var headString = "<head>";
  headString += '<meta name="referrer" content="' + aPolicy + '">';

  return createTestPage2(headString, aPolicy, aName);
}

function handleRequest(request, response) {
  var sharedKey = "img_referrer_testserver.sjs";
  var params = request.queryString.split("&");
  var action = params[0].split("=")[1];

  response.setHeader("Cache-Control", "no-cache", false);
  response.setHeader("Content-Type", "text/html; charset=utf-8", false);

  if (action === "resetState") {
    let state = getSharedState(sharedKey);
    state = {};
    setSharedState(sharedKey, JSON.stringify(state));
    response.write("");
    return;
  }
  if (action === "test") {
    // ?action=test&policy=origin&name=name&content=content
    let policy = params[1].split("=")[1];
    let name = params[2].split("=")[1];
    let content = params[3].split("=")[1];
    let result = getSharedState(sharedKey);

    if (result === "") {
      result = {};
    } else {
      result = JSON.parse(result);
    }

    if (!result.tests) {
      result.tests = {};
    }

    var referrerLevel = "none";
    var test = {};
    if (request.hasHeader("Referer")) {
      let referrer = request.getHeader("Referer");
      if (referrer.indexOf("img_referrer_testserver") > 0) {
        referrerLevel = "full";
      } else if (referrer == "http://mochi.test:8888/") {
        referrerLevel = "origin";
      }
      test.referrer = request.getHeader("Referer");
    } else {
      test.referrer = "";
    }
    test.policy = referrerLevel;
    test.expected = policy;

    result.tests[name] = test;

    setSharedState(sharedKey, JSON.stringify(result));

    if (content === "image") {
      response.setHeader("Content-Type", "image/png");
      response.write(IMG_BYTES);
    }
    return;
  }
  if (action === "get-test-results") {
    // ?action=get-result
    response.write(getSharedState(sharedKey));
    return;
  }
  if (action === "generate-img-policy-test") {
    // ?action=generate-img-policy-test&imgPolicy=b64-encoded-string&name=name&policy=b64-encoded-string
    let imgPolicy = unescape(params[1].split("=")[1]);
    let name = unescape(params[2].split("=")[1]);
    let metaPolicy = "";
    if (params[3]) {
      metaPolicy = params[3].split("=")[1];
    }

    response.write(createTest(metaPolicy, imgPolicy, name));
    return;
  }
  if (action === "generate-img-policy-test2") {
    // ?action=generate-img-policy-test2&imgPolicy=b64-encoded-string&name=name
    let imgPolicy = unescape(params[1].split("=")[1]);
    let name = unescape(params[2].split("=")[1]);

    response.write(createTest2(imgPolicy, name));
    return;
  }
  if (action === "generate-img-policy-test3") {
    // ?action=generate-img-policy-test3&imgPolicy1=b64-encoded-string&imgPolicy2=b64-encoded-string&imgPolicy3=b64-encoded-string&name=name
    let imgPolicy1 = unescape(params[1].split("=")[1]);
    let imgPolicy2 = unescape(params[2].split("=")[1]);
    let imgPolicy3 = unescape(params[3].split("=")[1]);
    let name = unescape(params[4].split("=")[1]);

    response.write(createTest3(imgPolicy1, imgPolicy2, imgPolicy3, name));
    return;
  }
  if (action === "generate-img-policy-test4") {
    // ?action=generate-img-policy-test4&imgPolicy=b64-encoded-string&name=name
    let policy = unescape(params[1].split("=")[1]);
    let name = unescape(params[2].split("=")[1]);

    response.write(createTest4(policy, name));
    return;
  }
  if (action === "generate-img-policy-test5") {
    // ?action=generate-img-policy-test5&policy=b64-encoded-string&name=name
    let policy = unescape(params[1].split("=")[1]);
    let name = unescape(params[2].split("=")[1]);

    response.write(createTest5(policy, name));
    return;
  }

  if (action === "generate-setAttribute-test1") {
    // ?action=generate-setAttribute-test1&policy=b64-encoded-string&name=name
    let imgPolicy = unescape(params[1].split("=")[1]);
    let policy = unescape(params[2].split("=")[1]);
    let name = unescape(params[3].split("=")[1]);

    response.write(createSetAttributeTest1(policy, imgPolicy, name));
    return;
  }

  if (action === "generate-setAttribute-test2") {
    // ?action=generate-setAttribute-test2&policy=b64-encoded-string&name=name
    let imgPolicy = unescape(params[1].split("=")[1]);
    let policy = unescape(params[2].split("=")[1]);
    let name = unescape(params[3].split("=")[1]);

    response.write(createSetAttributeTest2(policy, imgPolicy, name));
    return;
  }

  response.write("I don't know action " + action);
}