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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef NET_PROXY_PROXY_RESOLVER_SCRIPT_DATA_H_
      6 #define NET_PROXY_PROXY_RESOLVER_SCRIPT_DATA_H_
      7 
      8 #include "base/memory/ref_counted.h"
      9 #include "base/strings/string16.h"
     10 #include "net/base/net_export.h"
     11 #include "url/gurl.h"
     12 
     13 namespace net {
     14 
     15 // Reference-counted wrapper for passing around a PAC script specification.
     16 // The PAC script can be either specified via a URL, a deferred URL for
     17 // auto-detect, or the actual javascript program text.
     18 //
     19 // This is thread-safe so it can be used by multi-threaded implementations of
     20 // ProxyResolver to share the data between threads.
     21 class NET_EXPORT_PRIVATE ProxyResolverScriptData
     22     : public base::RefCountedThreadSafe<ProxyResolverScriptData> {
     23  public:
     24   enum Type {
     25     TYPE_SCRIPT_CONTENTS,
     26     TYPE_SCRIPT_URL,
     27     TYPE_AUTO_DETECT,
     28   };
     29 
     30   // Creates a script data given the UTF8 bytes of the content.
     31   static scoped_refptr<ProxyResolverScriptData> FromUTF8(
     32       const std::string& utf8);
     33 
     34   // Creates a script data given the UTF16 bytes of the content.
     35   static scoped_refptr<ProxyResolverScriptData> FromUTF16(
     36       const base::string16& utf16);
     37 
     38   // Creates a script data given a URL to the PAC script.
     39   static scoped_refptr<ProxyResolverScriptData> FromURL(const GURL& url);
     40 
     41   // Creates a script data for using an automatically detected PAC URL.
     42   static scoped_refptr<ProxyResolverScriptData> ForAutoDetect();
     43 
     44   Type type() const {
     45     return type_;
     46   }
     47 
     48   // Returns the contents of the script as UTF16.
     49   // (only valid for type() == TYPE_SCRIPT_CONTENTS).
     50   const base::string16& utf16() const;
     51 
     52   // Returns the URL of the script.
     53   // (only valid for type() == TYPE_SCRIPT_URL).
     54   const GURL& url() const;
     55 
     56   // Returns true if |this| matches |other|.
     57   bool Equals(const ProxyResolverScriptData* other) const;
     58 
     59  private:
     60   friend class base::RefCountedThreadSafe<ProxyResolverScriptData>;
     61   ProxyResolverScriptData(Type type,
     62                           const GURL& url,
     63                           const base::string16& utf16);
     64   virtual ~ProxyResolverScriptData();
     65 
     66 
     67   const Type type_;
     68   const GURL url_;
     69   const base::string16 utf16_;
     70 };
     71 
     72 }  // namespace net
     73 
     74 #endif  // NET_PROXY_PROXY_RESOLVER_SCRIPT_DATA_H_
     75