Files
cromite/patches/BRM044_Inject-scripts-for-AMP-tracking-ads-and-video-functionality.patch
T
2018-09-23 09:04:17 +02:00

107 lines
9.4 KiB
Diff

From: csagan5 <32685696+csagan5@users.noreply.github.com>
Date: Sat, 28 Oct 2017 10:09:41 +0200
Subject: Inject scripts for AMP, tracking, ads and video functionality
Remove AMP, tracking and ads from search results
Break Page Visibility API and Fullscreen API for youtube.com and vimeo.com to
allow playing videos in background (original Javascript code by timdream)
---
third_party/blink/renderer/core/dom/BUILD.gn | 2 ++
third_party/blink/renderer/core/dom/document.cc | 28 +++++++++++++++++++++-
.../renderer/core/dom/extensions/anti_amp_cure.h | 6 +++++
.../renderer/core/dom/extensions/video_bg_play.h | 6 +++++
4 files changed, 41 insertions(+), 1 deletion(-)
create mode 100644 third_party/blink/renderer/core/dom/extensions/anti_amp_cure.h
create mode 100644 third_party/blink/renderer/core/dom/extensions/video_bg_play.h
diff --git a/third_party/blink/renderer/core/dom/BUILD.gn b/third_party/blink/renderer/core/dom/BUILD.gn
--- a/third_party/blink/renderer/core/dom/BUILD.gn
+++ b/third_party/blink/renderer/core/dom/BUILD.gn
@@ -147,6 +147,8 @@ blink_core_sources("dom") {
"global_event_handlers.h",
"icon_url.cc",
"icon_url.h",
+ "extensions/dont-track-me.h",
+ "extensions/video-bg-play.h",
"id_target_observer.cc",
"id_target_observer.h",
"id_target_observer_registry.cc",
diff --git a/third_party/blink/renderer/core/dom/document.cc b/third_party/blink/renderer/core/dom/document.cc
--- a/third_party/blink/renderer/core/dom/document.cc
+++ b/third_party/blink/renderer/core/dom/document.cc
@@ -223,6 +223,7 @@
#include "third_party/blink/renderer/core/page/scrolling/scrolling_coordinator.h"
#include "third_party/blink/renderer/core/page/scrolling/snap_coordinator.h"
#include "third_party/blink/renderer/core/page/scrolling/top_document_root_scroller_controller.h"
+#include "extensions/video_bg_play.h"
#include "third_party/blink/renderer/core/paint/compositing/paint_layer_compositor.h"
#include "third_party/blink/renderer/core/paint/first_meaningful_paint_detector.h"
#include "third_party/blink/renderer/core/paint/paint_layer.h"
@@ -282,6 +283,8 @@
#include "third_party/blink/renderer/platform/wtf/text/text_encoding_registry.h"
#include "third_party/blink/renderer/platform/wtf/time.h"
+#include "extensions/anti_amp_cure.h"
+
#ifndef NDEBUG
using WeakDocumentSet =
blink::PersistentHeapHashSet<blink::WeakMember<blink::Document>>;
@@ -5926,8 +5929,31 @@ void Document::FinishedParsing() {
fetcher_->ClearResourcesFromPreviousFetcher();
}
- if (IsPrefetchOnly())
+ if (IsPrefetchOnly()) {
WebPrerenderingSupport::Current()->PrefetchFinished();
+ return;
+ }
+
+ // determine whether this is a Google search results page
+ const WTF::String& host = url_.Host();
+ auto* bodyElement = body();
+ if (bodyElement) {
+ size_t pos = host.Find(".google.");
+ if ((pos != WTF::kNotFound) && (host.length() - pos - 8 < 4)) {
+ LOG(INFO) << "injecting anti-AMP-cure Javascript payload";
+ HTMLScriptElement* e = HTMLScriptElement::Create(*this, CreateElementFlags());
+ e->setText(ANTI_AMP_CURE_JS);
+ bodyElement->AppendChild(e);
+ }
+
+ // check for eligibility of the video bg fix
+ if ((WTF::kNotFound != host.Find("youtube.com")) || (WTF::kNotFound != host.Find("vimeo.com"))) {
+ LOG(INFO) << "injecting video-bg-play Javascript payload";
+ HTMLScriptElement* e = HTMLScriptElement::Create(*this, CreateElementFlags());
+ e->setText(VIDEO_BG_PLAY_JS);
+ bodyElement->AppendChild(e);
+ }
+ } // has origin and body element
FirstMeaningfulPaintDetector::From(*this).CheckNetworkStable();
}
diff --git a/third_party/blink/renderer/core/dom/extensions/anti_amp_cure.h b/third_party/blink/renderer/core/dom/extensions/anti_amp_cure.h
new file mode 100644
--- /dev/null
+++ b/third_party/blink/renderer/core/dom/extensions/anti_amp_cure.h
@@ -0,0 +1,6 @@
+#ifndef anti_amp_cure_h
+#define anti_amp_cure_h
+
+#define ANTI_AMP_CURE_JS "/* Bromite click-tracking and AMP removal v0.3.5 */\n\nfunction recreateHyperlink(a) {\n // skip already-sanitized hyperlinks\n if (a.sane) return false;\n\n // create new A element - old one has event listeners attached\n var newA = document.createElement('a');\n newA.referrerPolicy = 'origin';\n // property set when hyperlink has been created by this script\n newA.sane = 1;\n\n // remove AMP class, get actual page URL\n var ampCur = a.getAttribute('data-amp-cur');\n if (ampCur) {\n newA.href = ampCur;\n a.classList.remove('amp_r');\n } else {\n var realLink = getRealLinkFromGoogleUrl(a);\n if (realLink) {\n newA.href = realLink;\n } else {\n // might not be an actual hyperlink, ignore it\n if (!a.href) {\n return false;\n }\n // leave original href unchanged\n newA.href = a.href;\n }\n }\n // copy CSS classes\n newA.className = a.className;\n\n // copy nodes inside the hyperlink\n while (a.firstChild) {\n newA.appendChild(a.lastChild);\n }\n // replace hyperlink\n a.parentNode.replaceChild(newA, a);\n return true;\n}\n\nfunction isResult(a) {\n if (a.getAttribute('data-amp-cur'))\n return true;\n var inlineMousedown = a.getAttribute('onmousedown');\n if (!inlineMousedown)\n\treturn false;\n // return rwt(....); // E.g Google search results.\n // return google.rwt(...); // E.g. sponsored search results\n // return google.arwt(this); // E.g. sponsored search results (dec 2016).\n return /\\ba?rwt\\(/.test(inlineMousedown) || /\\bctpacw\\b/.test(inlineMousedown);\n}\n\n/**\n * @returns {String} the real URL if the given link is a Google redirect URL.\n */\nfunction getRealLinkFromGoogleUrl(a) {\n if ((a.hostname === location.hostname || a.hostname.indexOf('www.google.') == 0) &&\n /^\\/(local_)?url$/.test(a.pathname)) {\n // Google Maps / Dito (/local_url?q=<url>)\n // Mobile (/url?q=<url>)\n var url = /[?&](?:q|url)=((?:https?|ftp)[%:][^&]+)/.exec(a.search);\n if (url) {\n return decodeURIComponent(url[1]);\n }\n // Help pages, e.g. safe browsing (/url?...&q=%2Fsupport%2Fanswer...)\n url = /[?&](?:q|url)=((?:%2[Ff]|\\/)[^&]+)/.exec(a.search);\n if (url) {\n return a.origin + decodeURIComponent(url[1]);\n }\n }\n}\n\nfunction sanitizeAds() {\n // scan all divs\n var div = document.getElementById('tads');\n if (div) {\n div.style.display = 'none';\n\treturn true;\n }\n return false;\n}\n\nfunction sanitizeAll() {\n console.log(\"ads removed: \", sanitizeAds());\n console.log(\"hyperlinks sanitized: \", sanitizeAllHyperlinks(document));\n}\n\nfunction hookMoreResults() {\n var extrares = document.getElementById('extrares');\n if (!extrares) {\n console.log(\"could not hook more results\");\n return;\n }\n // mutation observers are great but they don't work\n extrares.addEventListener(\"DOMNodeInserted\", function(e) {\n var node = e.target;\n if (node.id && node.id.startsWith(\"arc-srp\"))\n console.log(\"hyperlinks sanitized on new result node: \", sanitizeAllHyperlinks(node));\n });\n}\n\nfunction setMlogoClick() {\n var mlogo = document.getElementById('qslc');\n if (mlogo && mlogo.children[0]) {\n mlogo = mlogo.children[0];\n mlogo.removeAttribute(\"href\");\n mlogo.setAttribute(\"onclick\", \"sanitizeAll()\");\n console.log(\"logo link replaced\");\n } else {\n console.log(\"could not replace logo link\");\n }\n}\n\nfunction sanitizeAllHyperlinks(rootNode) {\n var saned = 0, total = 0;\n rootNode.querySelectorAll('div[data-hveid]:not([data-hveid=\"\"]) a').forEach(function(a) {\n\ttotal++;\n\tvar res = recreateHyperlink(a);\n\tif (res) saned++;\n });\n console.log(\"sanitized \", saned, \"/\", total, \" hyperlinks\");\n\n return saned;\n}\n\n// avoid running cleanup on non-search pages\nif ((document.location.host.indexOf(\"images.google.\") == -1) && (document.location.host.indexOf(\"news.google.\") == -1)) {\n sanitizeAll();\n}\nsetMlogoClick();\n\nhookMoreResults();\n"
+
+#endif // anti_amp_cure_h
diff --git a/third_party/blink/renderer/core/dom/extensions/video_bg_play.h b/third_party/blink/renderer/core/dom/extensions/video_bg_play.h
new file mode 100644
--- /dev/null
+++ b/third_party/blink/renderer/core/dom/extensions/video_bg_play.h
@@ -0,0 +1,6 @@
+#ifndef video_bg_play_h
+#define video_bg_play_h
+
+#define VIDEO_BG_PLAY_JS "'use strict';\n\n/* video background play fix - original version by timdream */\ndocument.videoBGFix = {};\n\n// Page Visibility API\nObject.defineProperties(document.videoBGFix,\n { 'hidden': {value: false}, 'visibilityState': {value: 'visible'} });\n\nwindow.addEventListener(\n 'visibilitychange', evt => evt.stopImmediatePropagation(), true);\nwindow.addEventListener(\n 'blur', evt => evt.stopImmediatePropagation(), true);\n\n// Fullscreen API\nwindow.addEventListener('fullscreenchange', evt => {\n Object.defineProperties(document.videoBGFix,\n { 'fullscreenEnabled': {value: true},\n 'fullscreen': {value: true},\n 'fullscreenElement': {value: document.fullscreenElement.videoBGFix}});\n window.addEventListener(\n 'fullscreenchange', evt => evt.stopImmediatePropagation(), true);\n}, { capture: true, once: true });\n"
+
+#endif // video_bg_play_h
--
2.7.4