[tbb-commits] [tor-browser/tor-browser-52.1.0esr-7.0-2] Bug 22327: Isolate Page Info media previews to content first party
gk at torproject.org
gk at torproject.org
Wed May 31 20:36:42 UTC 2017
commit af4e5af7cfa3cfd73ff53fd6ec1be4e97e43f630
Author: Arthur Edelstein <arthuredelstein at gmail.com>
Date: Wed May 10 17:10:23 2017 -0700
Bug 22327: Isolate Page Info media previews to content first party
---
browser/base/content/pageinfo/pageInfo.js | 9 +++++
dom/base/nsContentUtils.cpp | 63 ++++++++++++++++++++++---------
dom/base/nsContentUtils.h | 7 ++++
dom/html/HTMLMediaElement.cpp | 2 +
dom/media/MediaResource.cpp | 2 +
5 files changed, 66 insertions(+), 17 deletions(-)
diff --git a/browser/base/content/pageinfo/pageInfo.js b/browser/base/content/pageinfo/pageInfo.js
index 7a6d0a0..fc3e3bb 100644
--- a/browser/base/content/pageinfo/pageInfo.js
+++ b/browser/base/content/pageinfo/pageInfo.js
@@ -4,6 +4,11 @@
Components.utils.import("resource://gre/modules/LoadContextInfo.jsm");
Components.utils.import("resource://gre/modules/Services.jsm");
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+
+XPCOMUtils.defineLazyServiceGetter(this, "gSerializationHelper",
+ "@mozilla.org/network/serialization-helper;1",
+ "nsISerializationHelper");
// define a js object to implement nsITreeView
function pageInfoTreeView(treeid, copycol)
@@ -881,6 +886,8 @@ function makePreview(row)
var newImage = new Image;
newImage.id = "thepreviewimage";
+ let loadingPrincipalString = gSerializationHelper.serializeToString(gDocInfo.principal);
+ newImage.setAttribute("loadingprincipal", loadingPrincipalString);
var physWidth = 0, physHeight = 0;
var width = 0, height = 0;
@@ -928,6 +935,7 @@ function makePreview(row)
else if (item.HTMLVideoElement && isProtocolAllowed) {
newImage = document.createElementNS("http://www.w3.org/1999/xhtml", "video");
newImage.id = "thepreviewimage";
+ newImage.setAttribute("loadingprincipal", loadingPrincipalString);
newImage.src = url;
newImage.controls = true;
width = physWidth = item.videoWidth;
@@ -939,6 +947,7 @@ function makePreview(row)
else if (item.HTMLAudioElement && isProtocolAllowed) {
newImage = new Audio;
newImage.id = "thepreviewimage";
+ newImage.setAttribute("loadingprincipal", loadingPrincipalString);
newImage.src = url;
newImage.controls = true;
isAudio = true;
diff --git a/dom/base/nsContentUtils.cpp b/dom/base/nsContentUtils.cpp
index 48f7991..f932742 100644
--- a/dom/base/nsContentUtils.cpp
+++ b/dom/base/nsContentUtils.cpp
@@ -3367,6 +3367,15 @@ nsContentUtils::LoadImage(nsIURI* aURI, nsINode* aContext,
NS_PRECONDITION(aLoadingPrincipal, "Must have a principal");
NS_PRECONDITION(aRequest, "Null out param");
+ // If the image is in a chrome document and the image node has been assigned a
+ // "loadingprincipal" attribute, we should use that principal instead.
+ if (IsSystemPrincipal(aLoadingPrincipal) && aContext->IsContent()) {
+ nsContentPolicyType contentPolicyType;
+ GetContentPolicyTypeForUIImageLoading(aContext->AsContent(),
+ &aLoadingPrincipal, contentPolicyType);
+ aContentPolicyType = (int32_t) contentPolicyType;
+ }
+
imgLoader* imgLoader = GetImgLoaderForDocument(aLoadingDocument);
if (!imgLoader) {
// nothing we can do here
@@ -9879,25 +9888,45 @@ nsContentUtils::GetContentPolicyTypeForUIImageLoading(nsIContent* aLoadingNode,
{
// Use the serialized loadingPrincipal from the image element. Fall back
// to mContent's principal (SystemPrincipal) if not available.
- aContentPolicyType = nsIContentPolicy::TYPE_INTERNAL_IMAGE;
nsCOMPtr<nsIPrincipal> loadingPrincipal = aLoadingNode->NodePrincipal();
- nsAutoString imageLoadingPrincipal;
- aLoadingNode->GetAttr(kNameSpaceID_None, nsGkAtoms::loadingprincipal,
- imageLoadingPrincipal);
- if (!imageLoadingPrincipal.IsEmpty()) {
- nsCOMPtr<nsISupports> serializedPrincipal;
- NS_DeserializeObject(NS_ConvertUTF16toUTF8(imageLoadingPrincipal),
- getter_AddRefs(serializedPrincipal));
- loadingPrincipal = do_QueryInterface(serializedPrincipal);
-
- if (loadingPrincipal) {
- // Set the content policy type to TYPE_INTERNAL_IMAGE_FAVICON for
- // indicating it's a favicon loading.
- aContentPolicyType = nsIContentPolicy::TYPE_INTERNAL_IMAGE_FAVICON;
- } else {
- // Fallback if the deserialization is failed.
- loadingPrincipal = aLoadingNode->NodePrincipal();
+ if (IsSystemPrincipal(loadingPrincipal)) {
+ aContentPolicyType = nsIContentPolicy::TYPE_INTERNAL_IMAGE;
+ nsAutoString imageLoadingPrincipal;
+ aLoadingNode->GetAttr(kNameSpaceID_None, nsGkAtoms::loadingprincipal,
+ imageLoadingPrincipal);
+ if (!imageLoadingPrincipal.IsEmpty()) {
+ nsCOMPtr<nsISupports> serializedPrincipal;
+ NS_DeserializeObject(NS_ConvertUTF16toUTF8(imageLoadingPrincipal),
+ getter_AddRefs(serializedPrincipal));
+ loadingPrincipal = do_QueryInterface(serializedPrincipal);
+
+ if (loadingPrincipal) {
+ // Set the content policy type to TYPE_INTERNAL_IMAGE_FAVICON for
+ // indicating it's a favicon loading.
+ aContentPolicyType = nsIContentPolicy::TYPE_INTERNAL_IMAGE_FAVICON;
+ } else {
+ // Fallback if the deserialization is failed.
+ loadingPrincipal = aLoadingNode->NodePrincipal();
+ }
}
}
loadingPrincipal.forget(aLoadingPrincipal);
}
+
+/* static */ void
+nsContentUtils::ApplyCustomLoadPrincipalToChannel(Element* aElement, nsIChannel* aChannel)
+{
+ nsCOMPtr<nsIPrincipal> loadingPrincipal = aElement->NodePrincipal();
+ if (loadingPrincipal && nsContentUtils::IsSystemPrincipal(loadingPrincipal)) {
+ nsContentPolicyType dummyContentPolicyType;
+ nsContentUtils::GetContentPolicyTypeForUIImageLoading(
+ aElement, getter_AddRefs(loadingPrincipal), dummyContentPolicyType);
+ NeckoOriginAttributes neckoAttrs;
+ neckoAttrs.InheritFromDocToNecko(
+ BasePrincipal::Cast(loadingPrincipal)->OriginAttributesRef());
+ nsCOMPtr<nsILoadInfo> loadInfo = aChannel->GetLoadInfo();
+ if (loadInfo) {
+ Unused << loadInfo->SetOriginAttributes(neckoAttrs);
+ }
+ }
+}
diff --git a/dom/base/nsContentUtils.h b/dom/base/nsContentUtils.h
index 3c7d9eb..08c5cbf 100644
--- a/dom/base/nsContentUtils.h
+++ b/dom/base/nsContentUtils.h
@@ -2746,6 +2746,13 @@ public:
nsIPrincipal** aLoadingPrincipal,
nsContentPolicyType& aContentPolicyType);
+ /**
+ * If aElement has a "loadprincipal" attribute, apply the origin attributes
+ * to the loadInfo belonging to aChannel.
+ */
+ static void
+ ApplyCustomLoadPrincipalToChannel(Element* aElement, nsIChannel* aChannel);
+
private:
static bool InitializeEventTable();
diff --git a/dom/html/HTMLMediaElement.cpp b/dom/html/HTMLMediaElement.cpp
index 2f4f73f..37deffc 100644
--- a/dom/html/HTMLMediaElement.cpp
+++ b/dom/html/HTMLMediaElement.cpp
@@ -586,6 +586,8 @@ public:
return;
}
+ nsContentUtils::ApplyCustomLoadPrincipalToChannel(aElement, channel);
+
// The listener holds a strong reference to us. This creates a
// reference cycle, once we've set mChannel, which is manually broken
// in the listener's OnStartRequest method after it is finished with
diff --git a/dom/media/MediaResource.cpp b/dom/media/MediaResource.cpp
index d36783b..a8f600f 100644
--- a/dom/media/MediaResource.cpp
+++ b/dom/media/MediaResource.cpp
@@ -833,6 +833,8 @@ ChannelMediaResource::RecreateChannel()
loadFlags);
NS_ENSURE_SUCCESS(rv, rv);
+ nsContentUtils::ApplyCustomLoadPrincipalToChannel(element, mChannel);
+
// We have cached the Content-Type, which should not change. Give a hint to
// the channel to avoid a sniffing failure, which would be expected because we
// are probably seeking in the middle of the bitstream, and sniffing relies
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