1 // Copyright (c) 2006-2008 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_LIST_H_ 6 #define NET_PROXY_PROXY_LIST_H_ 7 #pragma once 8 9 #include <string> 10 #include <vector> 11 12 #include "net/proxy/proxy_retry_info.h" 13 14 namespace net { 15 16 class ProxyServer; 17 18 // This class is used to hold a list of proxies returned by GetProxyForUrl or 19 // manually configured. It handles proxy fallback if multiple servers are 20 // specified. 21 class ProxyList { 22 public: 23 ProxyList(); 24 ~ProxyList(); 25 26 // Initializes the proxy list to a string containing one or more proxy servers 27 // delimited by a semicolon. 28 void Set(const std::string& proxy_uri_list); 29 30 // Set the proxy list to a single entry, |proxy_server|. 31 void SetSingleProxyServer(const ProxyServer& proxy_server); 32 33 // De-prioritizes the proxies that we have cached as not working, by moving 34 // them to the end of the fallback list. 35 void DeprioritizeBadProxies(const ProxyRetryInfoMap& proxy_retry_info); 36 37 // Delete any entry which doesn't have one of the specified proxy schemes. 38 // |scheme_bit_field| is a bunch of ProxyServer::Scheme bitwise ORed together. 39 void RemoveProxiesWithoutScheme(int scheme_bit_field); 40 41 // Returns true if there is nothing left in the ProxyList. 42 bool IsEmpty() const; 43 44 // Returns the first proxy server in the list. It is only valid to call 45 // this if !IsEmpty(). 46 const ProxyServer& Get() const; 47 48 // Sets the list by parsing the pac result |pac_string|. 49 // Some examples for |pac_string|: 50 // "DIRECT" 51 // "PROXY foopy1" 52 // "PROXY foopy1; SOCKS4 foopy2:1188" 53 // Does a best-effort parse, and silently discards any errors. 54 void SetFromPacString(const std::string& pac_string); 55 56 // Returns a PAC-style semicolon-separated list of valid proxy servers. 57 // For example: "PROXY xxx.xxx.xxx.xxx:xx; SOCKS yyy.yyy.yyy:yy". 58 std::string ToPacString() const; 59 60 // Marks the current proxy server as bad and deletes it from the list. The 61 // list of known bad proxies is given by proxy_retry_info. Returns true if 62 // there is another server available in the list. 63 bool Fallback(ProxyRetryInfoMap* proxy_retry_info); 64 65 private: 66 // List of proxies. 67 std::vector<ProxyServer> proxies_; 68 }; 69 70 } // namespace net 71 72 #endif // NET_PROXY_PROXY_LIST_H_ 73
