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// Copyright (c) 2010 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.
// Patterns used in content setting rules.
#ifndef CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PATTERN_H_
#define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PATTERN_H_
#pragma once
#include <string>
class GURL;
// A pattern used in content setting rules. See |IsValid| for a description of
// possible patterns.
class ContentSettingsPattern {
public:
// Returns a pattern that matches the host of this URL and all subdomains.
static ContentSettingsPattern FromURL(const GURL& url);
// Returns a pattern that matches exactly this URL.
static ContentSettingsPattern FromURLNoWildcard(const GURL& url);
ContentSettingsPattern() {}
explicit ContentSettingsPattern(const std::string& pattern)
: pattern_(pattern) {}
// True if this is a valid pattern. Valid patterns are
// - [*.]domain.tld (matches domain.tld and all sub-domains)
// - host (matches an exact hostname)
// - a.b.c.d (matches an exact IPv4 ip)
// - [a:b:c:d:e:f:g:h] (matches an exact IPv6 ip)
// TODO(jochen): should also return true for a complete URL without a host.
bool IsValid() const;
// True if |url| matches this pattern.
bool Matches(const GURL& url) const;
// Returns a std::string representation of this pattern.
const std::string& AsString() const { return pattern_; }
bool operator==(const ContentSettingsPattern& other) const {
return pattern_ == other.pattern_;
}
// Canonicalizes the pattern so that it's ASCII only, either
// in original (if it was already ASCII) or punycode form.
std::string CanonicalizePattern() const;
// The version of the pattern format implemented.
static const int kContentSettingsPatternVersion;
// The format of a domain wildcard.
static const char* kDomainWildcard;
// The length of kDomainWildcard (without the trailing '\0').
static const size_t kDomainWildcardLength;
private:
std::string pattern_;
};
// Stream operator so ContentSettingsPattern can be used in assertion
// statements.
inline std::ostream& operator<<(
std::ostream& out, const ContentSettingsPattern& pattern) {
return out << pattern.AsString();
}
#endif // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PATTERN_H_
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