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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 #include "chrome/common/custom_handlers/protocol_handler.h"
      6 
      7 #include "base/strings/string_util.h"
      8 #include "base/strings/utf_string_conversions.h"
      9 #include "net/base/escape.h"
     10 
     11 
     12 ProtocolHandler::ProtocolHandler(const std::string& protocol,
     13                                  const GURL& url,
     14                                  const string16& title)
     15     : protocol_(protocol),
     16       url_(url),
     17       title_(title) {
     18 }
     19 
     20 ProtocolHandler ProtocolHandler::CreateProtocolHandler(
     21     const std::string& protocol,
     22     const GURL& url,
     23     const string16& title) {
     24   std::string lower_protocol = StringToLowerASCII(protocol);
     25   return ProtocolHandler(lower_protocol, url, title);
     26 }
     27 
     28 ProtocolHandler::ProtocolHandler() {
     29 }
     30 
     31 bool ProtocolHandler::IsValidDict(const base::DictionaryValue* value) {
     32   return value->HasKey("protocol") && value->HasKey("url") &&
     33     value->HasKey("title");
     34 }
     35 
     36 bool ProtocolHandler::IsSameOrigin(
     37     const ProtocolHandler& handler) const {
     38   return handler.url().GetOrigin() == url_.GetOrigin();
     39 }
     40 
     41 const ProtocolHandler& ProtocolHandler::EmptyProtocolHandler() {
     42   static const ProtocolHandler* const kEmpty = new ProtocolHandler();
     43   return *kEmpty;
     44 }
     45 
     46 ProtocolHandler ProtocolHandler::CreateProtocolHandler(
     47     const base::DictionaryValue* value) {
     48   if (!IsValidDict(value)) {
     49     return EmptyProtocolHandler();
     50   }
     51   std::string protocol, url;
     52   string16 title;
     53   value->GetString("protocol", &protocol);
     54   value->GetString("url", &url);
     55   value->GetString("title", &title);
     56   return ProtocolHandler::CreateProtocolHandler(protocol, GURL(url), title);
     57 }
     58 
     59 GURL ProtocolHandler::TranslateUrl(const GURL& url) const {
     60   std::string translatedUrlSpec(url_.spec());
     61   ReplaceSubstringsAfterOffset(&translatedUrlSpec, 0, "%s",
     62       net::EscapeQueryParamValue(url.spec(), true));
     63   return GURL(translatedUrlSpec);
     64 }
     65 
     66 base::DictionaryValue* ProtocolHandler::Encode() const {
     67   base::DictionaryValue* d = new base::DictionaryValue();
     68   d->Set("protocol", new base::StringValue(protocol_));
     69   d->Set("url", new base::StringValue(url_.spec()));
     70   d->Set("title", new base::StringValue(title_));
     71   return d;
     72 }
     73 
     74 #if !defined(NDEBUG)
     75 std::string ProtocolHandler::ToString() const {
     76   return "{ protocol=" + protocol_ +
     77          ", url=" + url_.spec() +
     78          ", title=" + UTF16ToASCII(title_) +
     79          " }";
     80 }
     81 #endif
     82 
     83 bool ProtocolHandler::operator==(const ProtocolHandler& other) const {
     84   return protocol_ == other.protocol_ &&
     85     url_ == other.url_ &&
     86     title_ == other.title_;
     87 }
     88 
     89 bool ProtocolHandler::IsEquivalent(const ProtocolHandler& other) const {
     90   return protocol_ == other.protocol_ && url_ == other.url_;
     91 }
     92 
     93 bool ProtocolHandler::operator<(const ProtocolHandler& other) const {
     94   return title_ < other.title_;
     95 }
     96