| // Copyright 2013 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 "components/plugins/renderer/mobile_youtube_plugin.h" |
| |
| #include "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "base/strings/string_piece.h" |
| #include "base/strings/string_util.h" |
| #include "base/values.h" |
| #include "content/public/common/content_constants.h" |
| #include "content/public/renderer/render_frame.h" |
| #include "gin/handle.h" |
| #include "gin/object_template_builder.h" |
| #include "third_party/WebKit/public/web/WebFrame.h" |
| #include "third_party/WebKit/public/web/WebKit.h" |
| #include "ui/base/webui/jstemplate_builder.h" |
| |
| using blink::WebFrame; |
| using blink::WebPlugin; |
| using blink::WebURLRequest; |
| |
| const char* const kSlashVSlash = "/v/"; |
| const char* const kSlashESlash = "/e/"; |
| |
| namespace { |
| |
| std::string GetYoutubeVideoId(const blink::WebPluginParams& params) { |
| GURL url(params.url); |
| std::string video_id = url.path().substr(strlen(kSlashVSlash)); |
| |
| // Extract just the video id |
| size_t video_id_end = video_id.find('&'); |
| if (video_id_end != std::string::npos) |
| video_id = video_id.substr(0, video_id_end); |
| return video_id; |
| } |
| |
| std::string HtmlData(const blink::WebPluginParams& params, |
| base::StringPiece template_html) { |
| base::DictionaryValue values; |
| values.SetString("video_id", GetYoutubeVideoId(params)); |
| return webui::GetI18nTemplateHtml(template_html, &values); |
| } |
| |
| bool IsValidYouTubeVideo(const std::string& path) { |
| unsigned len = strlen(kSlashVSlash); |
| |
| // check for more than just /v/ or /e/. |
| if (path.length() <= len) |
| return false; |
| |
| std::string str = StringToLowerASCII(path); |
| // Youtube flash url can start with /v/ or /e/. |
| if (strncmp(str.data(), kSlashVSlash, len) != 0 && |
| strncmp(str.data(), kSlashESlash, len) != 0) |
| return false; |
| |
| // Start after /v/ |
| for (unsigned i = len; i < path.length(); i++) { |
| char c = str[i]; |
| if (isalpha(c) || isdigit(c) || c == '_' || c == '-') |
| continue; |
| // The url can have more parameters such as &hl=en after the video id. |
| // Once we start seeing extra parameters we can return true. |
| return c == '&' && i > len; |
| } |
| return true; |
| } |
| |
| } // namespace |
| |
| namespace plugins { |
| |
| MobileYouTubePlugin::MobileYouTubePlugin(content::RenderFrame* render_frame, |
| blink::WebLocalFrame* frame, |
| const blink::WebPluginParams& params, |
| base::StringPiece& template_html, |
| GURL placeholderDataUrl) |
| : PluginPlaceholder(render_frame, |
| frame, |
| params, |
| HtmlData(params, template_html), |
| placeholderDataUrl) {} |
| |
| MobileYouTubePlugin::~MobileYouTubePlugin() {} |
| |
| // static |
| bool MobileYouTubePlugin::IsYouTubeURL(const GURL& url, |
| const std::string& mime_type) { |
| std::string host = url.host(); |
| bool is_youtube = EndsWith(host, "youtube.com", true) || |
| EndsWith(host, "youtube-nocookie.com", true); |
| |
| return is_youtube && IsValidYouTubeVideo(url.path()) && |
| LowerCaseEqualsASCII(mime_type, content::kFlashPluginSwfMimeType); |
| } |
| |
| void MobileYouTubePlugin::OpenYoutubeUrlCallback() { |
| std::string youtube("vnd.youtube:"); |
| GURL url(youtube.append(GetYoutubeVideoId(GetPluginParams()))); |
| WebURLRequest request; |
| request.initialize(); |
| request.setURL(url); |
| render_frame()->LoadURLExternally( |
| GetFrame(), request, blink::WebNavigationPolicyNewForegroundTab); |
| } |
| |
| void MobileYouTubePlugin::BindWebFrame(WebFrame* frame) { |
| v8::Isolate* isolate = blink::mainThreadIsolate(); |
| v8::HandleScope handle_scope(isolate); |
| v8::Handle<v8::Context> context = frame->mainWorldScriptContext(); |
| DCHECK(!context.IsEmpty()); |
| |
| v8::Context::Scope context_scope(context); |
| v8::Handle<v8::Object> global = context->Global(); |
| global->Set(gin::StringToV8(isolate, "plugin"), |
| gin::CreateHandle(isolate, this).ToV8()); |
| } |
| |
| gin::ObjectTemplateBuilder MobileYouTubePlugin::GetObjectTemplateBuilder( |
| v8::Isolate* isolate) { |
| return PluginPlaceholder::GetObjectTemplateBuilder(isolate) |
| .SetMethod("openYoutubeURL", &MobileYouTubePlugin::OpenYoutubeUrlCallback); |
| } |
| |
| } // namespace plugins |