[tor-commits] [tor-browser/tor-browser-60.3.0esr-8.5-1] Bug 1322748 add ability to get registered channelwrappers, r=kmag

[gk@xxxxxxxxxxxxxx]

commit c1774ae7fc74bef7956caca4fe1b8de1365f5d48
Author: Shane Caraveo <scaraveo@xxxxxxxxxxx>
Date:   Tue May 22 14:19:57 2018 -0400

    Bug 1322748 add ability to get registered channelwrappers, r=kmag
    
    MozReview-Commit-ID: SphwWjzQuo
    
    --HG--
    extra : rebase_source : 0b5193d7f4e9e7f27f9a7d622699b673781c3dd4
---
 dom/chrome-webidl/ChannelWrapper.webidl                |  8 ++++++++
 .../extensions/webrequest/ChannelWrapper.cpp           | 18 ++++++++++++++++++
 .../components/extensions/webrequest/ChannelWrapper.h  |  2 +-
 3 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/dom/chrome-webidl/ChannelWrapper.webidl b/dom/chrome-webidl/ChannelWrapper.webidl
index b8d921cea58d..2777aab65c8e 100644
--- a/dom/chrome-webidl/ChannelWrapper.webidl
+++ b/dom/chrome-webidl/ChannelWrapper.webidl
@@ -49,6 +49,14 @@ interface ChannelWrapper : EventTarget {
   static ChannelWrapper get(MozChannel channel);
 
   /**
+   * Returns the wrapper instance for the given channel. The same wrapper is
+   * always returned for a given channel.
+   */
+  static ChannelWrapper getRegisteredChannel(unsigned long long aChannelId,
+                                             WebExtensionPolicy extension,
+                                             TabParent? tabParent);
+
+  /**
    * A unique ID for for the requests which remains constant throughout the
    * redirect chain.
    */
diff --git a/toolkit/components/extensions/webrequest/ChannelWrapper.cpp b/toolkit/components/extensions/webrequest/ChannelWrapper.cpp
index de4a7fee1a2a..52508f0f24ed 100644
--- a/toolkit/components/extensions/webrequest/ChannelWrapper.cpp
+++ b/toolkit/components/extensions/webrequest/ChannelWrapper.cpp
@@ -78,6 +78,24 @@ ChannelWrapper::Get(const GlobalObject& global, nsIChannel* channel)
   return wrapper.forget();
 }
 
+already_AddRefed<ChannelWrapper>
+ChannelWrapper::GetRegisteredChannel(const GlobalObject& global, uint64_t aChannelId, const WebExtensionPolicy& aAddon, nsITabParent* aTabParent)
+{
+  nsIContentParent* contentParent = nullptr;
+  if (TabParent* parent = static_cast<TabParent*>(aTabParent)) {
+    contentParent = static_cast<nsIContentParent*>(parent->Manager());
+  }
+
+  auto& webreq = WebRequestService::GetSingleton();
+
+  nsCOMPtr<nsITraceableChannel> channel = webreq.GetTraceableChannel(aChannelId, aAddon.Id(), contentParent);
+  if (!channel) {
+    return nullptr;
+  }
+  nsCOMPtr<nsIChannel> chan(do_QueryInterface(channel));
+  return ChannelWrapper::Get(global, chan);
+}
+
 void
 ChannelWrapper::SetChannel(nsIChannel* aChannel)
 {
diff --git a/toolkit/components/extensions/webrequest/ChannelWrapper.h b/toolkit/components/extensions/webrequest/ChannelWrapper.h
index 8ba238991070..750aed434f6a 100644
--- a/toolkit/components/extensions/webrequest/ChannelWrapper.h
+++ b/toolkit/components/extensions/webrequest/ChannelWrapper.h
@@ -121,7 +121,7 @@ public:
   NS_DECLARE_STATIC_IID_ACCESSOR(NS_CHANNELWRAPPER_IID)
 
   static already_AddRefed<extensions::ChannelWrapper> Get(const dom::GlobalObject& global, nsIChannel* channel);
-
+  static already_AddRefed<extensions::ChannelWrapper> GetRegisteredChannel(const dom::GlobalObject& global, uint64_t aChannelId, const WebExtensionPolicy& aAddon, nsITabParent* aTabParent);
 
   uint64_t Id() const { return mId; }
 



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