Delete sky/engine/core/fetch

sky/engine/core/fetch/FetchUtils.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 "sky/engine/core/fetch/FetchUtils.h"
-
-#include "sky/engine/platform/network/HTTPHeaderMap.h"
-#include "sky/engine/platform/network/HTTPParsers.h"
-#include "sky/engine/wtf/HashSet.h"
-#include "sky/engine/wtf/Threading.h"
-#include "sky/engine/wtf/text/AtomicString.h"
-#include "sky/engine/wtf/text/WTFString.h"
-
-namespace blink {
-
-namespace {
-
-class ForbiddenHeaderNames {
-    WTF_MAKE_NONCOPYABLE(ForbiddenHeaderNames); WTF_MAKE_FAST_ALLOCATED;
-public:
-    bool has(const String& name) const
-    {
-        return m_fixedNames.contains(name)
-            || name.startsWith(m_proxyHeaderPrefix, false)
-            || name.startsWith(m_secHeaderPrefix, false);
-    }
-
-    static const ForbiddenHeaderNames* get();
-
-private:
-    ForbiddenHeaderNames();
-
-    String m_proxyHeaderPrefix;
-    String m_secHeaderPrefix;
-    HashSet<String, CaseFoldingHash> m_fixedNames;
-};
-
-ForbiddenHeaderNames::ForbiddenHeaderNames()
-    : m_proxyHeaderPrefix("proxy-")
-    , m_secHeaderPrefix("sec-")
-{
-    m_fixedNames.add("accept-charset");
-    m_fixedNames.add("accept-encoding");
-    m_fixedNames.add("access-control-request-headers");
-    m_fixedNames.add("access-control-request-method");
-    m_fixedNames.add("connection");
-    m_fixedNames.add("content-length");
-    m_fixedNames.add("cookie");
-    m_fixedNames.add("cookie2");
-    m_fixedNames.add("date");
-    m_fixedNames.add("dnt");
-    m_fixedNames.add("expect");
-    m_fixedNames.add("host");
-    m_fixedNames.add("keep-alive");
-    m_fixedNames.add("origin");
-    m_fixedNames.add("referer");
-    m_fixedNames.add("te");
-    m_fixedNames.add("trailer");
-    m_fixedNames.add("transfer-encoding");
-    m_fixedNames.add("upgrade");
-    m_fixedNames.add("user-agent");
-    m_fixedNames.add("via");
-}
-
-const ForbiddenHeaderNames* ForbiddenHeaderNames::get()
-{
-    AtomicallyInitializedStatic(const ForbiddenHeaderNames*, instance = new ForbiddenHeaderNames);
-    return instance;
-}
-
-} // namespace
-
-bool FetchUtils::isSimpleMethod(const String& method)
-{
-    // http://fetch.spec.whatwg.org/#simple-method
-    // "A simple method is a method that is `GET`, `HEAD`, or `POST`."
-    return method == "GET" || method == "HEAD" || method == "POST";
-}
-
-bool FetchUtils::isSimpleHeader(const AtomicString& name, const AtomicString& value)
-{
-    // http://fetch.spec.whatwg.org/#simple-header
-    // "A simple header is a header whose name is either one of `Accept`,
-    // `Accept-Language`, and `Content-Language`, or whose name is
-    // `Content-Type` and value, once parsed, is one of
-    // `application/x-www-form-urlencoded`, `multipart/form-data`, and
-    // `text/plain`."
-
-    if (equalIgnoringCase(name, "accept")
-        || equalIgnoringCase(name, "accept-language")
-        || equalIgnoringCase(name, "content-language"))
-        return true;
-
-    if (equalIgnoringCase(name, "content-type")) {
-        AtomicString mimeType = extractMIMETypeFromMediaType(value);
-        return equalIgnoringCase(mimeType, "application/x-www-form-urlencoded")
-            || equalIgnoringCase(mimeType, "multipart/form-data")
-            || equalIgnoringCase(mimeType, "text/plain");
-    }
-
-    return false;
-}
-
-bool FetchUtils::isSimpleRequest(const String& method, const HTTPHeaderMap& headerMap)
-{
-    if (!isSimpleMethod(method))
-        return false;
-
-    HTTPHeaderMap::const_iterator end = headerMap.end();
-    for (HTTPHeaderMap::const_iterator it = headerMap.begin(); it != end; ++it) {
-        // Preflight is required for MIME types that can not be sent via form
-        // submission.
-        if (!isSimpleHeader(it->key, it->value))
-            return false;
-    }
-
-    return true;
-}
-
-bool FetchUtils::isForbiddenMethod(const String& method)
-{
-    // http://fetch.spec.whatwg.org/#forbidden-method
-    // "A forbidden method is a method that is a byte case-insensitive match"
-    //  for one of `CONNECT`, `TRACE`, and `TRACK`."
-    return equalIgnoringCase(method, "TRACE")
-        || equalIgnoringCase(method, "TRACK")
-        || equalIgnoringCase(method, "CONNECT");
-}
-
-bool FetchUtils::isForbiddenHeaderName(const String& name)
-{
-    // http://fetch.spec.whatwg.org/#forbidden-header-name
-    // "A forbidden header name is a header names that is one of:
-    //   `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`
-    // or starts with `Proxy-` or `Sec-` (including when it is just `Proxy-` or
-    // `Sec-`)."
-
-    return ForbiddenHeaderNames::get()->has(name);
-}
-
-bool FetchUtils::isForbiddenResponseHeaderName(const String& name)
-{
-    // http://fetch.spec.whatwg.org/#forbidden-response-header-name
-    // "A forbidden response header name is a header name that is one of:
-    // `Set-Cookie`, `Set-Cookie2`"
-
-    return equalIgnoringCase(name, "set-cookie") || equalIgnoringCase(name, "set-cookie2");
-}
-
-bool FetchUtils::isSimpleOrForbiddenRequest(const String& method, const HTTPHeaderMap& headerMap)
-{
-    if (!isSimpleMethod(method))
-        return false;
-
-    HTTPHeaderMap::const_iterator end = headerMap.end();
-    for (HTTPHeaderMap::const_iterator it = headerMap.begin(); it != end; ++it) {
-        if (!isSimpleHeader(it->key, it->value) && !isForbiddenHeaderName(it->key))
-            return false;
-    }
-
-    return true;
-}
-
-} // namespace blink