Index: chrome/renderer/chrome_content_renderer_client.cc |
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc |
index 11fd9c54a74b045e7ae339dc5575504e89986da3..ca5b06b68576d4b1a475ac824db48af0f95cf6d6 100644 |
--- a/chrome/renderer/chrome_content_renderer_client.cc |
+++ b/chrome/renderer/chrome_content_renderer_client.cc |
@@ -21,6 +21,7 @@ |
#include "base/values.h" |
#include "build/build_config.h" |
#include "chrome/common/channel_info.h" |
+#include "chrome/common/chrome_features.h" |
#include "chrome/common/chrome_isolated_world_ids.h" |
#include "chrome/common/chrome_paths.h" |
#include "chrome/common/chrome_switches.h" |
@@ -1389,3 +1390,58 @@ bool ChromeContentRendererClient::ShouldEnforceWebRTCRoutingPreferences() { |
return true; |
#endif |
} |
+ |
+GURL ChromeContentRendererClient::OverrideFlashEmbedWithHTML(const GURL& url) { |
+ if (!base::FeatureList::IsEnabled(features::kOverrideYouTubeFlashEmbed)) |
+ return GURL(); |
+ |
+ if (!url.is_valid()) |
+ return GURL(); |
+ |
+ // We'll only modify YouTube Flash embeds. The URLs can be recognized since |
+ // they're in the following form: youtube.com/v/VIDEO_ID. So, we check to see |
+ // if the given URL does follow that format. |
+ if (!url.DomainIs("youtube.com") && !url.DomainIs("youtube-nocookie.com")) |
+ return GURL(); |
+ if (url.path().find("/v/") != 0) |
+ return GURL(); |
+ |
+ std::string url_str = url.spec(); |
+ |
+ // If the website is using an invalid YouTube URL, we'll try and |
+ // fix the URL by ensuring that if there are multiple parameters, |
+ // the parameter string begins with a "?" and then follows with a "&" |
+ // for each subsequent parameter. We do this because the Flash video player |
+ // has some URL correction capabilities so we don't want this move to HTML5 |
+ // to break webpages that used to work. |
+ size_t index = url_str.find_first_of("&?"); |
+ bool invalid_url = index != std::string::npos && url_str.at(index) == '&'; |
+ |
+ if (invalid_url) { |
+ // ? should appear first before all parameters |
+ url_str.replace(index, 1, "?"); |
+ |
+ // Replace all instances of ? (after the first) with & |
+ for (size_t pos = index + 1; |
+ (pos = url_str.find("?", pos)) != std::string::npos; pos += 1) { |
+ url_str.replace(pos, 1, "&"); |
+ } |
+ } |
+ |
+ GURL corrected_url = GURL(url_str); |
+ |
+ // We don't modify any URLs that contain the enablejsapi=1 parameter |
+ // since the page may be interacting with the YouTube Flash player in |
+ // Javascript and we don't want to break working content. |
+ if (corrected_url.query().find("enablejsapi=1") != std::string::npos) |
+ return GURL(); |
+ |
+ // Change the path to use the YouTube HTML5 API |
+ std::string path = corrected_url.path(); |
+ path.replace(path.find("/v/"), 3, "/embed/"); |
+ |
+ url::Replacements<char> r; |
+ r.SetPath(path.c_str(), url::Component(0, path.length())); |
+ |
+ return corrected_url.ReplaceComponents(r); |
+} |