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// Copyright (c) 2013 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 "components/auto_login_parser/auto_login_parser.h"
#include <utility>
#include <vector>
#include "base/logging.h"
#include "base/strings/string_split.h"
#include "net/base/escape.h"
#include "net/url_request/url_request.h"
namespace auto_login_parser {
namespace {
const char kHeaderName[] = "X-Auto-Login";
bool MatchRealm(const std::string& realm, RealmRestriction restriction) {
switch (restriction) {
case ONLY_GOOGLE_COM:
return realm == "com.google";
case ALLOW_ANY_REALM:
return true;
default:
NOTREACHED();
return false;
}
}
} // namespace
HeaderData::HeaderData() {}
HeaderData::~HeaderData() {}
bool ParseHeader(const std::string& header,
RealmRestriction realm_restriction,
HeaderData* header_data) {
// TODO(pliard): Investigate/fix potential internationalization issue. It
// seems that "account" from the x-auto-login header might contain non-ASCII
// characters.
if (header.empty())
return false;
base::StringPairs pairs;
if (!base::SplitStringIntoKeyValuePairs(header, '=', '&', &pairs))
return false;
// Parse the information from the |header| string.
HeaderData local_params;
for (base::StringPairs::const_iterator it = pairs.begin(); it != pairs.end();
++it) {
const std::string& key = it->first;
const std::string& value = it->second;
std::string unescaped_value(
net::UnescapeURLComponent(value, net::UnescapeRule::URL_SPECIAL_CHARS));
if (key == "realm") {
if (!MatchRealm(unescaped_value, realm_restriction))
return false;
local_params.realm = unescaped_value;
} else if (key == "account") {
local_params.account = unescaped_value;
} else if (key == "args") {
local_params.args = unescaped_value;
}
}
if (local_params.realm.empty() || local_params.args.empty())
return false;
*header_data = local_params;
return true;
}
bool ParserHeaderInResponse(net::URLRequest* request,
RealmRestriction realm_restriction,
HeaderData* header_data) {
std::string header_string;
request->GetResponseHeaderByName(kHeaderName, &header_string);
return ParseHeader(header_string, realm_restriction, header_data);
}
} // namespace auto_login_parser
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