Bug 1583076 - Pass LoadInfo back for the current channel when confirming redirects. r=ckerschb

We previously used the initial LoadInfo from when the DocumentChannel was created, but need the one from the most recent channel in the parent.

Depends on D46740

Differential Revision: https://phabricator.services.mozilla.com/D46741

--HG--
extra : moz-landing-system : lando

netwerk/ipc/DocumentChannelChild.cpp

@@ -255,12 +255,8 @@ IPCResult DocumentChannelChild::RecvRedirectToRealChannel(
     const uint32_t& aRedirectFlags, const Maybe<uint32_t>& aContentDisposition,
     const Maybe<nsString>& aContentDispositionFilename,
     RedirectToRealChannelResolver&& aResolve) {
-  nsCOMPtr<nsILoadInfo> originalLoadInfo;
   RefPtr<dom::Document> loadingDocument;
-  GetLoadInfo(getter_AddRefs(originalLoadInfo));
+  mLoadInfo->GetLoadingDocument(getter_AddRefs(loadingDocument));
-  if (originalLoadInfo) {
-    originalLoadInfo->GetLoadingDocument(getter_AddRefs(loadingDocument));
-  }
 
   nsCOMPtr<nsILoadInfo> loadInfo;
   nsresult rv = LoadInfoArgsToLoadInfo(aLoadInfo, loadingDocument,
@@ -404,11 +400,18 @@ DocumentChannelChild::OnRedirectVerifyCallback(nsresult aStatusCode) {
 }
 
 IPCResult DocumentChannelChild::RecvConfirmRedirect(
-    nsIURI* aNewUri, ConfirmRedirectResolver&& aResolve) {
+    const LoadInfoArgs& aLoadInfo, nsIURI* aNewUri,
+    ConfirmRedirectResolver&& aResolve) {
   // This is effectively the same as AsyncOnChannelRedirect, except since we're
   // not propagating the redirect into this process, we don't have an nsIChannel
   // for the redirection and we have to do the checks manually.
   // This just checks CSP thus far, hopefully there's not much else needed.
+  RefPtr<dom::Document> loadingDocument;
+  mLoadInfo->GetLoadingDocument(getter_AddRefs(loadingDocument));
+  nsCOMPtr<nsILoadInfo> loadInfo;
+  MOZ_ALWAYS_SUCCEEDS(LoadInfoArgsToLoadInfo(Some(aLoadInfo), loadingDocument,
+                                             getter_AddRefs(loadInfo)));
+
   nsCOMPtr<nsIURI> originalUri;
   nsresult rv = GetOriginalURI(getter_AddRefs(originalUri));
   if (NS_FAILED(rv)) {
@@ -418,7 +421,7 @@ IPCResult DocumentChannelChild::RecvConfirmRedirect(
   }
 
   Maybe<nsresult> cancelCode;
-  rv = CSPService::ConsultCSPForRedirect(originalUri, aNewUri, mLoadInfo,
+  rv = CSPService::ConsultCSPForRedirect(originalUri, aNewUri, loadInfo,
                                          cancelCode);
   aResolve(Tuple<const nsresult&, const Maybe<nsresult>&>(rv, cancelCode));
   return IPC_OK();

netwerk/ipc/DocumentChannelChild.h

@@ -82,7 +82,8 @@ class DocumentChannelChild final : public PDocumentChannelChild,
       const nsCString& aLists, const nsCString& aFullHash);
 
   mozilla::ipc::IPCResult RecvConfirmRedirect(
-      nsIURI* aNewUri, ConfirmRedirectResolver&& aResolve);
+      const LoadInfoArgs& aLoadInfo, nsIURI* aNewUri,
+      ConfirmRedirectResolver&& aResolve);
 
   void DoFailedAsyncOpen(const nsresult& aStatusCode);
 

netwerk/ipc/DocumentChannelParent.cpp

@@ -801,15 +801,22 @@ DocumentChannelParent::AsyncOnChannelRedirect(
   // process so that it can send events. Send a message to
   // our content process to ask CSP if we should allow this
   // redirect, and wait for confirmation.
+  nsCOMPtr<nsILoadInfo> loadInfo = aOldChannel->LoadInfo();
+  Maybe<LoadInfoArgs> loadInfoArgs;
+  MOZ_ALWAYS_SUCCEEDS(ipc::LoadInfoToLoadInfoArgs(loadInfo, &loadInfoArgs));
+  MOZ_ASSERT(loadInfoArgs.isSome());
+
   nsCOMPtr<nsIURI> newUri;
   nsresult rv = aNewChannel->GetURI(getter_AddRefs(newUri));
   NS_ENSURE_SUCCESS(rv, rv);
 
   nsCOMPtr<nsIAsyncVerifyRedirectCallback> callback(aCallback);
   nsCOMPtr<nsIChannel> oldChannel(aOldChannel);
-  SendConfirmRedirect(newUri)->Then(
+  SendConfirmRedirect(*loadInfoArgs, newUri)
+      ->Then(
           GetCurrentThreadSerialEventTarget(), __func__,
-      [callback, oldChannel](const Tuple<nsresult, Maybe<nsresult>>& aResult) {
+          [callback,
+           oldChannel](const Tuple<nsresult, Maybe<nsresult>>& aResult) {
             if (Get<1>(aResult)) {
               oldChannel->Cancel(*Get<1>(aResult));
             }

netwerk/ipc/PDocumentChannel.ipdl

@@ -75,7 +75,7 @@ child:
                               uint32_t? aContentDisposition,
                               nsString? aContentDispositionFilename) returns(nsresult rv);
 
-  async ConfirmRedirect(nsIURI aNewURI) returns(nsresult rv, nsresult? cancelCode);
+  async ConfirmRedirect(LoadInfoArgs aLoadInfo, nsIURI aNewURI) returns(nsresult rv, nsresult? cancelCode);
 
   // Tell child to delete channel (all IPDL deletes must be done from child to
   // avoid races: see bug 591708).