chromium/extensions/browser/api/declarative_webrequest/webrequest_condition_attribute.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef EXTENSIONS_BROWSER_API_DECLARATIVE_WEBREQUEST_WEBREQUEST_CONDITION_ATTRIBUTE_H_
#define EXTENSIONS_BROWSER_API_DECLARATIVE_WEBREQUEST_WEBREQUEST_CONDITION_ATTRIBUTE_H_

#include <stdint.h>
#include <memory>
#include <string>
#include <vector>

#include "base/memory/ref_counted.h"
#include "extensions/browser/api/declarative_webrequest/request_stage.h"
#include "extensions/common/api/events.h"

namespace base {
class Value;
}

namespace extensions {

enum class WebRequestResourceType : uint8_t;

class HeaderMatcher;
struct WebRequestData;

// Base class for all condition attributes of the declarative Web Request API
// except for condition attribute to test URLPatterns.
class WebRequestConditionAttribute
    : public base::RefCounted<WebRequestConditionAttribute> { … };

WebRequestConditionAttributes;

//
// The following are concrete condition attributes.
//

// Condition that checks whether a request is for a specific resource type.
class WebRequestConditionAttributeResourceType
    : public WebRequestConditionAttribute { … };

// Condition that checks whether a response's Content-Type header has a
// certain MIME media type.
class WebRequestConditionAttributeContentType
    : public WebRequestConditionAttribute { … };

// Condition attribute for matching against request headers. Uses HeaderMatcher
// to handle the actual tests, in connection with a boolean positiveness
// flag. If that flag is set to true, then IsFulfilled() returns true iff
// |header_matcher_| matches at least one header. Otherwise IsFulfilled()
// returns true iff the |header_matcher_| matches no header.
class WebRequestConditionAttributeRequestHeaders
    : public WebRequestConditionAttribute { … };

// Condition attribute for matching against response headers. Uses HeaderMatcher
// to handle the actual tests, in connection with a boolean positiveness
// flag. If that flag is set to true, then IsFulfilled() returns true iff
// |header_matcher_| matches at least one header. Otherwise IsFulfilled()
// returns true iff the |header_matcher_| matches no header.
class WebRequestConditionAttributeResponseHeaders
    : public WebRequestConditionAttribute { … };

// This condition is used as a filter for request stages. It is true exactly in
// stages specified on construction.
class WebRequestConditionAttributeStages
    : public WebRequestConditionAttribute { … };

}  // namespace extensions

#endif  // EXTENSIONS_BROWSER_API_DECLARATIVE_WEBREQUEST_WEBREQUEST_CONDITION_ATTRIBUTE_H_