[ServiceWorker] Make Request class better conformance with the spec.

LayoutTests/http/tests/serviceworker/resources/request-worker.js

 importScripts('worker-test-helpers.js');
 
 test(function() {
-    var headers = new HeaderMap;
-    headers.set('User-Agent', 'Mozilla/5.0');
-    headers.set('Accept', 'text/html');
-    headers.set('X-ServiceWorker-Test', 'request test field');
+  var url = 'https://www.example.com/test.html';
+  var headers = new Headers;
+  headers.set('User-Agent', 'Mozilla/5.0');
+  headers.set('Accept', 'text/html');
+  headers.set('X-ServiceWorker-Test', 'request test field');
 
-    var request = new Request({
-        url: 'https://www.example.com/test.html',
-        method: 'GET',
-        headers: headers
+  var request = new Request(
+      url,
+      {
+          method: 'GET',
+          headers: headers
+      });
+
+  assert_equals(request.url, url, 'Request.url should match');
+  assert_equals(request.method, 'GET', 'Request.method should match');
+  assert_true(request.headers instanceof Headers, 'Request.headers should be Headers');
+
+  // 'User-Agent' is a forbidden header.
+  assert_equals(request.headers.size, 2, 'Request.headers.size should match');
+  // Note: detailed behavioral tests for Headers are in another test,
+  // http/tests/serviceworker/headers.html.
+
+  request.url = 'http://localhost/';
+  assert_equals(request.url, 'https://www.example.com/test.html', 'Request.url should be readonly');
+  request = new Request('http://localhost/\uD800'); // Unmatched lead surrogate.
+  assert_equals(request.url,
+                'http://localhost/' + encodeURIComponent('\uFFFD'),
+                'Request.url should have unmatched surrogates replaced.');
+  request.method = 'POST';
+  assert_equals(request.method, 'GET', 'Request.method should be readonly');
+
+  request = new Request(url);
+  assert_equals(request.url, url, 'Request.url should match');
+  assert_equals(request.method, 'GET', 'Default Request.method should be GET');
+  assert_equals(request.mode, 'cors', 'Default Request.mode should be cors');
+  assert_equals(request.credentials, 'omit', 'Default Request.credentials should be omit');
+  var request2 = new Request(request);
+  assert_equals(request2.url, url, 'Request.url should match');
+  assert_equals(request2.method, 'GET', 'Request.method should match');
+  assert_equals(request2.mode, 'cors', 'Request.mode should match');
+  assert_equals(request2.credentials, 'omit', 'Request.credentials should match');
+
+  var kMethods = ['GET', 'HEAD', 'POST', 'PUT', 'DELETE', 'OPTIONS'];
+  var kModes = ['same-origin', 'no-cors', 'cors'];
+  var kCredentials = ['omit', 'same-origin', 'include'];
+
+  kMethods.forEach(function(method) {
+    request = new Request(url, {method: method});
+    assert_equals(request.method, method, 'Request.method should match');
+    request2 = new Request(request);
+    assert_equals(request2.method, method, 'Request.method should match');
+    kMethods.forEach(function(method2) {
+        var request2 = new Request(request, {method: method2});
+        assert_equals(request2.method, method2, 'Request.method should be overridden');
     });
+  });
+  kModes.forEach(function(mode) {
+    request = new Request(url, {mode: mode});
+    assert_equals(request.mode, mode, 'Request.mode should match');
+    var request2 = new Request(request);
+    assert_equals(request2.mode, mode, 'Request.mode should match');
+    kModes.forEach(function(mode2) {
+        var request2 = new Request(request, {mode: mode2});
+        assert_equals(request2.mode, mode2, 'Request.mode should be overridden');
+    });
+  });
+  kCredentials.forEach(function(credentials) {
+    request = new Request(url, {credentials: credentials});
+    assert_equals(request.credentials, credentials, 'Request.credentials should match');
+    var request2 = new Request(request);
+    assert_equals(request2.credentials, credentials, 'Request.credentials should match');
+    kCredentials.forEach(function(credentials2) {
+        var request2 = new Request(request, {credentials: credentials2});
+        assert_equals(request2.credentials, credentials2, 'Request.credentials should be overridden');
+    });
+  });
 
-    assert_equals(request.url, 'https://www.example.com/test.html', 'Request.url should match');
-    assert_equals(request.method, 'GET', 'Request.method should match');
-    assert_equals(request.origin, 'https://www.example.com', 'Request.origin should match');
-    assert_true(request.headers instanceof HeaderMap, 'Request.headers should be HeaderMap');
-    assert_equals(request.headers.size, 3, 'Request.headers.size should match');
-    // Note: detailed behavioral tests for HeaderMap are in another test,
-    // http/tests/serviceworker/headermap.html.
 
-    request.url = 'http://localhost/';
-    assert_equals(request.url, 'http://localhost/', 'Request.url should be writable');
-    request.url = 'http://localhost/\uD800'; // Unmatched lead surrogate.
-    assert_equals(request.url,
-                  'http://localhost/' + encodeURIComponent('\uFFFD'),
-                  'Request.url should have unmatched surrogates replaced.');
-    request.method = 'POST';
-    assert_equals(request.method, 'POST', 'Request.method should be writable');
-    assert_throws({name: 'TypeError'}, function() { request.method = 'invalid \u0100'; },
-                  'Request.method should throw on invalid ByteString');
+  var forbiddenMethods = ['TRACE', 'TRACK', 'CONNECT'];
+  var invalidNames = ['(', ')', '<', '>', '@', ',', ';', ':', '\\', '"',
+                      '/', '[', ']', '?', '=', '{', '}', '\u3042', 'a(b'];
+  forbiddenMethods.forEach(function(method) {
+    assert_throws({name:'TypeError'},
+                  function() { var request = new Request(url, {method: method}); },
+                  'new Request with a forbidden method (' + method +') should throw');
+  });
+  invalidNames.forEach(function(name) {
+    assert_throws({name:'TypeError'},
+                  function() { var request = new Request(url, {method: name}); },
+                  'new Request with an invalid method (' + name +') should throw');
+  });
+
+  kMethods.forEach(function(method) {
+    request = new Request(url, {method: method.toLowerCase()});
+    assert_equals(request.method, method, 'Request.method should be case corrected');
+  });
+
+  ['PUT', 'DELETE', 'OPTIONS'].forEach(function(method) {
+    assert_throws({name:'TypeError'},
+                  function() { var request = new Request(url, {method: method, mode: 'no-cors'}); },
+                  'new no-cors Request with non simple method (' + method +') should throw');
+    assert_throws({name:'TypeError'},
+                  function() {
+                    var request = new Request(url, {method: method});
+                    var request2 = new Request(request, {mode: 'no-cors'});
+                  },
+                  'new no-cors Request with non simple method (' + method +') should throw');
+    assert_throws({name:'TypeError'},
+                  function() {
+                    var request = new Request(url, {mode: 'no-cors'});
+                    var request2 = new Request(request, {method: method});
+                  },
+                  'new no-cors Request with non simple method (' + method +') should throw');
+  });
+
+  kForbiddenHeaders =
+      ['Accept-Charset', 'Accept-Encoding', 'Access-Control-Request-Headers',
+       'Access-Control-Request-Method', 'Connection', 'Content-Length', 'Cookie',
+       'Cookie2', 'Date', 'DNT', 'Expect', 'Host', 'Keep-Alive', 'Origin',
+       'Referer', 'TE', 'Trailer', 'Transfer-Encoding', 'Upgrade', 'User-Agent',
+       'Via', 'Proxy-', 'Sec-', 'Proxy-FooBar', 'Sec-FooBar'];
+  kSimpleHeaders =
+      [['Accept', '*'], ['Accept-Language', 'ru'], ['Content-Language', 'ru'],
+       ['Content-Type', 'application/x-www-form-urlencoded'],
+       ['Content-Type', 'multipart/form-data'],
+       ['Content-Type', 'text/plain']]
+
+  request = new Request(url);
+  assert_equals(request.headers.size, 0);
+  request.headers.append('X-ServiceWorker-Test', 'test');
+  request.headers.append('X-ServiceWorker-Test2', 'test2');
+  assert_equals(request.headers.size, 2);
+  assert_equals(request.headers.get('X-ServiceWorker-Test'), 'test');
+  assert_equals(request.headers.get('X-ServiceWorker-Test2'), 'test2');
+  kForbiddenHeaders.forEach(function(header) {
+    request.headers.append(header, 'test');
+    assert_equals(request.headers.size, 2,
+                  'Request.headers.append should ignore the forbidden headers');
+    request.headers.set(header, 'test');
+    assert_equals(request.headers.size, 2,
+                  'Request.headers.append should ignore the forbidden headers');
+  });
+
+  request = new Request(url, {mode: 'no-cors'});
+  request.headers.append('X-ServiceWorker-Test', 'test');
+  request.headers.append('X-ServiceWorker-Test2', 'test2');
+  assert_equals(request.headers.size, 0);
+
+  kSimpleHeaders.forEach(function(header) {
+    request = new Request(url, {mode: 'no-cors'});
+    request.headers.append(header[0], header[1]);
+    assert_equals(request.headers.size, 1);
+    request = new Request(url, {mode: 'no-cors'});
+    request.headers.set(header[0], header[1]);
+    assert_equals(request.headers.size, 1);
+    request.headers.delete(header[0]);
+    if (header[0] == 'Content-Type') {
+      assert_equals(
+          request.headers.size, 1,
+          'Content-Type header of no-cors request shouldn\'t be deleted');
+    } else {
+      assert_equals(request.headers.size, 0);
+    }
+  });
+
+  kSimpleHeaders.forEach(function(header) {
+    var headers = {};
+    headers['X-ServiceWorker-Test'] = 'test';
+    headers['X-ServiceWorker-Test2'] = 'test2';
+    kForbiddenHeaders.forEach(function(header) { headers[header] = 'foo';});
+    headers[header[0]] = header[1];
+    request = new Request(url, {headers: headers});
+    assert_equals(request.headers.size, 3,
+                  'Request.headers should not support the forbidden headers');
+    request = new Request(url, {mode: 'same-origin', headers: headers});
+    assert_equals(request.headers.size, 3,
+                  'Request.headers should not support the forbidden headers');
+    request = new Request(url, {mode: 'no-cors', headers: headers});
+    assert_equals(request.headers.size, 1,
+                  'No-CORS Request.headers should only support simple headers');
+    request = new Request(url, {mode: 'cors', headers: headers});
+    assert_equals(request.headers.size, 3,
+                  'Request.headers should not support the forbidden headers');
+  });
 
 }, 'Request in ServiceWorkerGlobalScope');