Revert 110099 - Creation of cookie_utils.

net/base/cookie_utils.cc

-// Copyright (c) 2011 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 "net/base/cookie_utils.h"
-
-#include "base/logging.h"
-#include "googleurl/src/gurl.h"
-#include "net/base/net_util.h"
-#include "net/base/registry_controlled_domain.h"
-
-namespace net {
-namespace cookie_utils {
-
-bool DomainIsHostOnly(const std::string& domain_string) {
-  return (domain_string.empty() || domain_string[0] != '.');
-}
-
-std::string GetEffectiveDomain(const std::string& scheme,
-                               const std::string& host) {
-  if (scheme == "http" || scheme == "https")
-    return RegistryControlledDomainService::GetDomainAndRegistry(host);
-
-  if (!DomainIsHostOnly(host))
-    return host.substr(1);
-  return host;
-}
-
-bool GetCookieDomainWithString(const GURL& url,
-                               const std::string& domain_string,
-                               std::string* result) {
-  const std::string url_host(url.host());
-
-  // If no domain was specified in the domain string, default to a host cookie.
-  // We match IE/Firefox in allowing a domain=IPADDR if it matches the url
-  // ip address hostname exactly.  It should be treated as a host cookie.
-  if (domain_string.empty() ||
-      (url.HostIsIPAddress() && url_host == domain_string)) {
-    *result = url_host;
-    DCHECK(DomainIsHostOnly(*result));
-    return true;
-  }
-
-  // Get the normalized domain specified in cookie line.
-  url_canon::CanonHostInfo ignored;
-  std::string cookie_domain(CanonicalizeHost(domain_string, &ignored));
-  if (cookie_domain.empty())
-    return false;
-  if (cookie_domain[0] != '.')
-    cookie_domain = "." + cookie_domain;
-
-  // Ensure |url| and |cookie_domain| have the same domain+registry.
-  const std::string url_scheme(url.scheme());
-  const std::string url_domain_and_registry(
-      GetEffectiveDomain(url_scheme, url_host));
-  if (url_domain_and_registry.empty())
-    return false;  // IP addresses/intranet hosts can't set domain cookies.
-  const std::string cookie_domain_and_registry(
-      GetEffectiveDomain(url_scheme, cookie_domain));
-  if (url_domain_and_registry != cookie_domain_and_registry)
-    return false;  // Can't set a cookie on a different domain + registry.
-
-  // Ensure |url_host| is |cookie_domain| or one of its subdomains.  Given that
-  // we know the domain+registry are the same from the above checks, this is
-  // basically a simple string suffix check.
-  const bool is_suffix = (url_host.length() < cookie_domain.length()) ?
-      (cookie_domain != ("." + url_host)) :
-      (url_host.compare(url_host.length() - cookie_domain.length(),
-                        cookie_domain.length(), cookie_domain) != 0);
-  if (is_suffix)
-    return false;
-
-  *result = cookie_domain;
-  return true;
-}
-
-}  // namespace cookie_utils
-}  // namespace net
-