1 files changed, 68 insertions, 0 deletions
diff --git a/Source/WebCore/bindings/js/CachedScriptFetcher.cpp b/Source/WebCore/bindings/js/CachedScriptFetcher.cpp
new file mode 100644
index 000000000..e54f78513
--- /dev/null
+++ b/Source/WebCore/bindings/js/CachedScriptFetcher.cpp
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2017 Yusuke Suzuki <utatane.tea@gmail.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "CachedScriptFetcher.h"
+
+#include "CachedResourceLoader.h"
+#include "CachedScript.h"
+#include "ContentSecurityPolicy.h"
+#include "Document.h"
+#include "Settings.h"
+
+namespace WebCore {
+
+Ref<CachedScriptFetcher> CachedScriptFetcher::create(const String& charset)
+{
+    return adoptRef(*new CachedScriptFetcher(charset));
+}
+
+CachedResourceHandle<CachedScript> CachedScriptFetcher::requestModuleScript(Document& document, const URL& sourceURL) const
+{
+    return requestScriptWithCache(document, sourceURL, String());
+}
+
+CachedResourceHandle<CachedScript> CachedScriptFetcher::requestScriptWithCache(Document& document, const URL& sourceURL, const String& crossOriginMode) const
+{
+    if (!document.settings().isScriptEnabled())
+        return nullptr;
+
+    ASSERT(document.contentSecurityPolicy());
+    bool hasKnownNonce = document.contentSecurityPolicy()->allowScriptWithNonce(m_nonce, m_isInUserAgentShadowTree);
+    ResourceLoaderOptions options = CachedResourceLoader::defaultCachedResourceOptions();
+    options.contentSecurityPolicyImposition = hasKnownNonce ? ContentSecurityPolicyImposition::SkipPolicyCheck : ContentSecurityPolicyImposition::DoPolicyCheck;
+
+    CachedResourceRequest request(ResourceRequest(sourceURL), options);
+    request.setAsPotentiallyCrossOrigin(crossOriginMode, document);
+    request.upgradeInsecureRequestIfNeeded(document);
+
+    request.setCharset(m_charset);
+    if (!m_initiatorName.isNull())
+        request.setInitiator(m_initiatorName);
+
+    return document.cachedResourceLoader().requestScript(WTFMove(request));
+}
+
+}