third_party/WebKit/Source/core/workers/AbstractWorker.cpp

/*
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#include "core/workers/AbstractWorker.h"

#include "bindings/core/v8/ExceptionState.h"
#include "core/dom/ExceptionCode.h"
#include "core/dom/ExecutionContext.h"
#include "core/frame/csp/ContentSecurityPolicy.h"
#include "platform/weborigin/SecurityOrigin.h"

namespace blink {

AbstractWorker::AbstractWorker(ExecutionContext* context)
    : ActiveDOMObject(context) {}

AbstractWorker::~AbstractWorker() {}

KURL AbstractWorker::resolveURL(const String& url,
                                ExceptionState& exceptionState,
                                WebURLRequest::RequestContext requestContext) {
  // FIXME: This should use the dynamic global scope (bug #27887)
  KURL scriptURL = getExecutionContext()->completeURL(url);
  if (!scriptURL.isValid()) {
    exceptionState.throwDOMException(SyntaxError,
                                     "'" + url + "' is not a valid URL.");
    return KURL();
  }

  // We can safely expose the URL in the following exceptions, as these checks
  // happen synchronously before redirection. JavaScript receives no new
  // information.
  if (!getExecutionContext()->getSecurityOrigin()->canRequestNoSuborigin(
          scriptURL)) {
    exceptionState.throwSecurityError(
        "Script at '" + scriptURL.elidedString() +
        "' cannot be accessed from origin '" +
        getExecutionContext()->getSecurityOrigin()->toString() + "'.");
    return KURL();
  }

  if (getExecutionContext()->contentSecurityPolicy() &&
      !(getExecutionContext()
            ->contentSecurityPolicy()
            ->allowRequestWithoutIntegrity(requestContext, scriptURL) &&
        getExecutionContext()
            ->contentSecurityPolicy()
            ->allowWorkerContextFromSource(scriptURL))) {
    exceptionState.throwSecurityError(
        "Access to the script at '" + scriptURL.elidedString() +
        "' is denied by the document's Content Security Policy.");
    return KURL();
  }

  return scriptURL;
}

DEFINE_TRACE(AbstractWorker) {
  EventTargetWithInlineData::trace(visitor);
  ActiveDOMObject::trace(visitor);
}

}  // namespace blink