Add some plumbing for in-progress work on enabling SSL proxy support....

net/proxy/proxy_server.cc

 // Copyright (c) 2009 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 "net/proxy/proxy_server.h"
 
 #include <algorithm>
 
 #include "base/string_tokenizer.h"
 #include "base/string_util.h"
@@ skipping 16 matching lines @@
     // notation didn't originally exist, so if a client returns SOCKS they
     // really meant SOCKS4.
     return ProxyServer::SCHEME_SOCKS4;
   }
   if (LowerCaseEqualsASCII(begin, end, "socks4"))
     return ProxyServer::SCHEME_SOCKS4;
   if (LowerCaseEqualsASCII(begin, end, "socks5"))
     return ProxyServer::SCHEME_SOCKS5;
   if (LowerCaseEqualsASCII(begin, end, "direct"))
     return ProxyServer::SCHEME_DIRECT;
+  if (LowerCaseEqualsASCII(begin, end, "https"))
+    return ProxyServer::SCHEME_HTTPS;
 
   return ProxyServer::SCHEME_INVALID;
 }
 
 // Parse the proxy scheme from a URL-like representation, to a
 // ProxyServer::Scheme.  This corresponds with the values used in
 // ProxyServer::ToURI(). If no type could be matched, returns SCHEME_INVALID.
 ProxyServer::Scheme GetSchemeFromURI(std::string::const_iterator begin,
                                      std::string::const_iterator end) {
   if (LowerCaseEqualsASCII(begin, end, "http"))
     return ProxyServer::SCHEME_HTTP;
   if (LowerCaseEqualsASCII(begin, end, "socks4"))
     return ProxyServer::SCHEME_SOCKS4;
   if (LowerCaseEqualsASCII(begin, end, "socks"))
     return ProxyServer::SCHEME_SOCKS4;
   if (LowerCaseEqualsASCII(begin, end, "socks5"))
     return ProxyServer::SCHEME_SOCKS5;
   if (LowerCaseEqualsASCII(begin, end, "direct"))
     return ProxyServer::SCHEME_DIRECT;
+  if (LowerCaseEqualsASCII(begin, end, "https"))
+    return ProxyServer::SCHEME_HTTPS;
   return ProxyServer::SCHEME_INVALID;
 }
 
 }  // namespace
 
 std::string ProxyServer::HostNoBrackets() const {
   // Doesn't make sense to call this if the URI scheme doesn't
   // have concept of a host.
   DCHECK(is_valid() && !is_direct());
 
@@ skipping 59 matching lines @@
   switch (scheme_) {
     case SCHEME_DIRECT:
       return "direct://";
     case SCHEME_HTTP:
       // Leave off "http://" since it is our default scheme.
       return host_and_port();
     case SCHEME_SOCKS4:
       return std::string("socks4://") + host_and_port();
     case SCHEME_SOCKS5:
       return std::string("socks5://") + host_and_port();
+    case SCHEME_HTTPS:
+      return std::string("https://") + host_and_port();
     default:
       // Got called with an invalid scheme.
       NOTREACHED();
       return std::string();
   }
 }
 
 // static
 ProxyServer ProxyServer::FromPacString(const std::string& pac_string) {
   return FromPacString(pac_string.begin(), pac_string.end());
@@ skipping 28 matching lines @@
     switch (scheme_) {
     case SCHEME_DIRECT:
       return "DIRECT";
     case SCHEME_HTTP:
       return std::string("PROXY ") + host_and_port();
     case SCHEME_SOCKS4:
       // For compatibility send SOCKS instead of SOCKS4.
       return std::string("SOCKS ") + host_and_port();
     case SCHEME_SOCKS5:
       return std::string("SOCKS5 ") + host_and_port();
+    case SCHEME_HTTPS:
+      return std::string("HTTPS ") + host_and_port();
     default:
       // Got called with an invalid scheme.
       NOTREACHED();
       return std::string();
   }
 }
 
 // static
 int ProxyServer::GetDefaultPortForScheme(Scheme scheme) {
   switch (scheme) {
     case SCHEME_HTTP:
       return 80;
     case SCHEME_SOCKS4:
     case SCHEME_SOCKS5:
       return 1080;
+    case SCHEME_HTTPS:
+      return 443;
     default:
       return -1;
   }
 }
 
 // static
 ProxyServer ProxyServer::FromSchemeHostAndPort(
     Scheme scheme,
     std::string::const_iterator begin,
     std::string::const_iterator end) {
@@ skipping 15 matching lines @@
   }
 
   // Choose a default port number if none was given.
   if (port == -1)
     port = GetDefaultPortForScheme(scheme);
 
   return ProxyServer(scheme, host, port);
 }
 
 }  // namespace net