chrome/browser/ui/search_engines/edit_search_engine_controller.cc

   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/browser/ui/search_engines/edit_search_engine_controller.h"
   6
   7 #include "base/strings/string_util.h"
   8 #include "base/strings/utf_string_conversions.h"
   9 #include "chrome/browser/profiles/profile.h"
  10 #include "chrome/browser/search_engines/template_url.h"
  11 #include "chrome/browser/search_engines/template_url_service.h"
  12 #include "chrome/browser/search_engines/template_url_service_factory.h"
  13 #include "chrome/common/net/url_fixer_upper.h"
  14 #include "content/public/browser/user_metrics.h"
  15 #include "url/gurl.h"
  16
  17 using base::UserMetricsAction;
  18
  19 EditSearchEngineController::EditSearchEngineController(
  20     TemplateURL* template_url,
  21     EditSearchEngineControllerDelegate* edit_keyword_delegate,
  22     Profile* profile)
  23     : template_url_(template_url),
  24       edit_keyword_delegate_(edit_keyword_delegate),
  25       profile_(profile) {
  26   DCHECK(profile_);
  27 }
  28
  29 bool EditSearchEngineController::IsTitleValid(
  30     const base::string16& title_input) const {
  31   return !CollapseWhitespace(title_input, true).empty();
  32 }
  33
  34 bool EditSearchEngineController::IsURLValid(
  35     const std::string& url_input) const {
  36   std::string url = GetFixedUpURL(url_input);
  37   if (url.empty())
  38     return false;
  39
  40   // Convert |url| to a TemplateURLRef so we can check its validity even if it
  41   // contains replacement strings.  We do this by constructing a dummy
  42   // TemplateURL owner because |template_url_| might be NULL and we can't call
  43   // TemplateURLRef::IsValid() when its owner is NULL.
  44   TemplateURLData data;
  45   data.SetURL(url);
  46   TemplateURL t_url(profile_, data);
  47   const TemplateURLRef& template_ref = t_url.url_ref();
  48   if (!template_ref.IsValid())
  49     return false;
  50
  51   // If this is going to be the default search engine, it must support
  52   // replacement.
  53   if (!template_ref.SupportsReplacement() &&
  54       (template_url_ == TemplateURLServiceFactory::GetForProfile(profile_)->
  55           GetDefaultSearchProvider()))
  56     return false;
  57
  58   // Replace any search term with a placeholder string and make sure the
  59   // resulting URL is valid.
  60   return GURL(template_ref.ReplaceSearchTerms(
  61       TemplateURLRef::SearchTermsArgs(base::ASCIIToUTF16("x")))).is_valid();
  62 }
  63
  64 bool EditSearchEngineController::IsKeywordValid(
  65     const base::string16& keyword_input) const {
  66   base::string16 keyword_input_trimmed(CollapseWhitespace(keyword_input, true));
  67   if (keyword_input_trimmed.empty())
  68     return false;  // Do not allow empty keyword.
  69   const TemplateURL* turl_with_keyword =
  70       TemplateURLServiceFactory::GetForProfile(profile_)->
  71       GetTemplateURLForKeyword(keyword_input_trimmed);
  72   return (turl_with_keyword == NULL || turl_with_keyword == template_url_);
  73 }
  74
  75 void EditSearchEngineController::AcceptAddOrEdit(
  76     const base::string16& title_input,
  77     const base::string16& keyword_input,
  78     const std::string& url_input) {
  79   DCHECK(!keyword_input.empty());
  80   std::string url_string = GetFixedUpURL(url_input);
  81   DCHECK(!url_string.empty());
  82
  83   TemplateURLService* template_url_service =
  84       TemplateURLServiceFactory::GetForProfile(profile_);
  85   TemplateURL* existing =
  86       template_url_service->GetTemplateURLForKeyword(keyword_input);
  87   if (existing && (!edit_keyword_delegate_ || existing != template_url_)) {
  88     // An entry may have been added with the same keyword string while the
  89     // user edited the dialog, either automatically or by the user (if we're
  90     // confirming a JS addition, they could have the Options dialog open at the
  91     // same time). If so, just ignore this add.
  92     // TODO(pamg): Really, we should modify the entry so this later one
  93     // overwrites it. But we don't expect this case to be common.
  94     CleanUpCancelledAdd();
  95     return;
  96   }
  97
  98   if (!edit_keyword_delegate_) {
  99     // Confiming an entry we got from JS. We have a template_url_, but it
 100     // hasn't yet been added to the model.
 101     DCHECK(template_url_);
 102     // TemplateURLService takes ownership of template_url_.
 103     template_url_service->AddWithOverrides(template_url_, title_input,
 104                                            keyword_input, url_string);
 105     content::RecordAction(UserMetricsAction("KeywordEditor_AddKeywordJS"));
 106   } else {
 107     // Adding or modifying an entry via the Delegate.
 108     edit_keyword_delegate_->OnEditedKeyword(template_url_, title_input,
 109                                             keyword_input, url_string);
 110   }
 111 }
 112
 113 void EditSearchEngineController::CleanUpCancelledAdd() {
 114   if (!edit_keyword_delegate_ && template_url_) {
 115     // When we have no Delegate, we know that the template_url_ hasn't yet been
 116     // added to the model, so we need to clean it up.
 117     delete template_url_;
 118     template_url_ = NULL;
 119   }
 120 }
 121
 122 std::string EditSearchEngineController::GetFixedUpURL(
 123     const std::string& url_input) const {
 124   std::string url;
 125   TrimWhitespace(TemplateURLRef::DisplayURLToURLRef(
 126                      base::UTF8ToUTF16(url_input)),
 127                  TRIM_ALL, &url);
 128   if (url.empty())
 129     return url;
 130
 131   // Parse the string as a URL to determine the scheme. If we need to, add the
 132   // scheme. As the scheme may be expanded (as happens with {google:baseURL})
 133   // we need to replace the search terms before testing for the scheme.
 134   TemplateURLData data;
 135   data.SetURL(url);
 136   TemplateURL t_url(profile_, data);
 137   std::string expanded_url(t_url.url_ref().ReplaceSearchTerms(
 138       TemplateURLRef::SearchTermsArgs(base::ASCIIToUTF16("x"))));
 139   url_parse::Parsed parts;
 140   std::string scheme(URLFixerUpper::SegmentURL(expanded_url, &parts));
 141   if (!parts.scheme.is_valid())
 142     url.insert(0, scheme + "://");
 143
 144   return url;
 145 }