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// Copyright (c) 2012 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 <memory>
#include <string>
#include "base/time/time.h"
#include "base/values.h"
#include "url/gurl.h"
// A single tuple of (protocol, url, last_modified) that indicates how URLs
// of the given protocol should be rewritten to be handled.
// The |last_modified| field is used to correctly perform deletion
// of protocol handlers based on time ranges.
class ProtocolHandler {
static ProtocolHandler CreateProtocolHandler(const std::string& protocol,
const GURL& url);
ProtocolHandler(const std::string& protocol,
const GURL& url,
base::Time last_modified);
// Creates a ProtocolHandler with fields from the dictionary. Returns an
// empty ProtocolHandler if the input is invalid.
static ProtocolHandler CreateProtocolHandler(
const base::DictionaryValue* value);
// Returns true if the dictionary value has all the necessary fields to
// define a ProtocolHandler.
static bool IsValidDict(const base::DictionaryValue* value);
// Returns true if this handler's url has the same origin as the given one.
bool IsSameOrigin(const ProtocolHandler& handler) const;
// Canonical empty ProtocolHandler.
static const ProtocolHandler& EmptyProtocolHandler();
// Interpolates the given URL into the URL template of this handler.
GURL TranslateUrl(const GURL& url) const;
// Returns true if the handlers are considered equivalent when determining
// if both handlers can be registered, or if a handler has previously been
// ignored.
bool IsEquivalent(const ProtocolHandler& other) const;
// Encodes this protocol handler as a DictionaryValue.
std::unique_ptr<base::DictionaryValue> Encode() const;
// Returns a friendly name for |protocol| if one is available, otherwise
// this function returns |protocol|.
static base::string16 GetProtocolDisplayName(const std::string& protocol);
// Returns a friendly name for |this.protocol_| if one is available, otherwise
// this function returns |this.protocol_|.
base::string16 GetProtocolDisplayName() const;
const std::string& protocol() const { return protocol_; }
const GURL& url() const { return url_;}
const base::Time& last_modified() const { return last_modified_; }
bool IsEmpty() const {
return protocol_.empty();
#if !defined(NDEBUG)
// Returns a string representation suitable for use in debugging.
std::string ToString() const;
bool operator==(const ProtocolHandler& other) const;
bool operator<(const ProtocolHandler& other) const;
std::string protocol_;
GURL url_;
base::Time last_modified_;