Revert of [ServiceWorker] Make Response class better conformance with the spec.

Source/modules/serviceworkers/Response.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "Response.h"
 
 #include "bindings/core/v8/Dictionary.h"
 #include "core/fileapi/Blob.h"
 #include "modules/serviceworkers/ResponseInit.h"
+#include "platform/NotImplemented.h"
+#include "public/platform/WebServiceWorkerResponse.h"
 
 namespace WebCore {
 
-PassRefPtr<Response> Response::create(Blob* body, const Dictionary& responseInit, ExceptionState& exceptionState)
+PassRefPtr<Response> Response::create(Blob* body, const Dictionary& responseInit)
 {
-    return create(body, ResponseInit(responseInit), exceptionState);
+    return create(body, ResponseInit(responseInit));
 }
 
-PassRefPtr<Response> Response::create(Blob* body, const ResponseInit& responseInit, ExceptionState& exceptionState)
+PassRefPtr<Response> Response::create(Blob* body, const ResponseInit& responseInit)
 {
-    // "1. If |init|'s status member is not in the range 200 to 599, throw a
-    // RangeError."
-    if (responseInit.status < 200 || 599 < responseInit.status) {
-        exceptionState.throwRangeError("Invalid status");
-        return nullptr;
-    }
+    RefPtr<BlobDataHandle> blobDataHandle = body ? body->blobDataHandle() : nullptr;
 
-    // FIXME: "2. If |init|'s statusText member does not match the Reason-Phrase
-    //        token production, throw a TypeError."
-
-    // "3. Let |r| be a new Response object, associated with a new response,
-    // Headers object, and FetchBodyStream object."
-    RefPtr<Response> r = adoptRef(new Response());
-
-    // "4. Set |r|'s response's status to |init|'s status member."
-    r->m_response->setStatus(responseInit.status);
-
-    // "5. Set |r|'s response's status message to |init|'s statusText member."
-    r->m_response->setStatusMessage(AtomicString(responseInit.statusText));
-
-    // "6. If |init|'s headers member is present, run these substeps:"
-    if (responseInit.headers) {
-        // "1. Empty |r|'s response's header list."
-        r->m_response->headerList()->clearList();
-        // "2. Fill |r|'s Headers object with |init|'s headers member. Rethrow
-        // any exceptions."
-        r->m_headers->fillWith(responseInit.headers.get(), exceptionState);
-        if (exceptionState.hadException())
-            return nullptr;
-    } else if (!responseInit.headersDictionary.isUndefinedOrNull()) {
-        // "1. Empty |r|'s response's header list."
-        r->m_response->headerList()->clearList();
-        // "2. Fill |r|'s Headers object with |init|'s headers member. Rethrow
-        // any exceptions."
-        r->m_headers->fillWith(responseInit.headersDictionary, exceptionState);
-        if (exceptionState.hadException())
-            return nullptr;
-    }
-    // "7. If body is given, run these substeps:"
-    if (body) {
-        // "1. Let |stream| and |Content-Type| be the result of extracting body."
-        // "2. Set |r|'s response's body to |stream|."
-        // "3. If |r|'s response's header list contains no header named
-        // `Content-Type`, append `Content-Type`/|Content-Type| to |r|'s
-        // response's header list."
-        r->m_response->setBlobDataHandle(body->blobDataHandle());
-        if (!r->m_response->headerList()->has("Content-Type")) {
-            if (body->type().isNull())
-                r->m_response->headerList()->append("Content-Type", "");
-            else
-                r->m_response->headerList()->append("Content-Type", body->type());
-        }
-    }
-
-    // FIXME: "8. Set |r|'s FetchBodyStream object's MIME type to the result of
-    //        extracting a MIME type from |r|'s response's header list."
-
-    // FIXME: "9. Set |r|'s FetchBodyStream object's codings to the result of
-    //        parsing `Content-Encoding` in |r|'s response's header list if that
-    //        result is not failure."
-
-    // "10. Return r."
-    return r.release();
+    // FIXME: Maybe append or override content-length and content-type headers using the blob. The spec will clarify what to do:
+    // https://github.com/slightlyoff/ServiceWorker/issues/192
+    return adoptRef(new Response(blobDataHandle.release(), responseInit));
 }
 
-PassRefPtr<Response> Response::create(PassRefPtr<FetchResponseData> response)
+PassRefPtr<HeaderMap> Response::headers() const
 {
-    return adoptRef(new Response(response));
-}
-
-String Response::type() const
-{
-    // "The type attribute's getter must return response's type."
-    switch (m_response->type()) {
-    case FetchResponseData::BasicType:
-        return "basic";
-    case FetchResponseData::CORSType:
-        return "cors";
-    case FetchResponseData::DefaultType:
-        return "default";
-    case FetchResponseData::ErrorType:
-        return "error";
-    case FetchResponseData::OpaqueType:
-        return "opaque";
-    }
-    ASSERT_NOT_REACHED();
-    return "";
-}
-
-String Response::url() const
-{
-    // "The url attribute's getter must return the empty string if response's
-    // url is null and response's url, serialized with the exclude fragment
-    // flag set, otherwise."
-    if (!m_response->url().hasFragmentIdentifier())
-        return m_response->url();
-    KURL url(m_response->url());
-    url.removeFragmentIdentifier();
-    return url;
-}
-
-unsigned short Response::status() const
-{
-    // "The status attribute's getter must return response's status."
-    return m_response->status();
-}
-
-String Response::statusText() const
-{
-    // "The statusText attribute's getter must return response's status message."
-    return m_response->statusMessage();
-}
-
-PassRefPtr<Headers> Response::headers() const
-{
-    // "The headers attribute's getter must return the associated Headers object."
+    // FIXME: Implement. Spec will eventually whitelist allowable headers.
     return m_headers;
 }
 
 void Response::populateWebServiceWorkerResponse(blink::WebServiceWorkerResponse& response)
 {
-    m_response->populateWebServiceWorkerResponse(response);
+    response.setStatus(status());
+    response.setStatusText(statusText());
+    response.setHeaders(m_headers->headerMap());
+    response.setBlobDataHandle(m_blobDataHandle);
 }
 
-Response::Response()
-    : m_response(FetchResponseData::create())
-    , m_headers(Headers::create(m_response->headerList()))
+Response::Response(PassRefPtr<BlobDataHandle> blobDataHandle, const ResponseInit& responseInit)
+    : m_status(responseInit.status)
+    , m_statusText(responseInit.statusText)
+    , m_headers(responseInit.headers)
+    , m_blobDataHandle(blobDataHandle)
 {
-    m_headers->setGuard(Headers::ResponseGuard);
     ScriptWrappable::init(this);
-}
-
-Response::Response(PassRefPtr<FetchResponseData> response)
-    : m_response(response)
-    , m_headers(Headers::create(m_response->headerList()))
-{
-    m_headers->setGuard(Headers::ResponseGuard);
-    ScriptWrappable::init(this);
+    if (!m_headers)
+        m_headers = HeaderMap::create();
 }
 
 } // namespace WebCore