From 37ea3b7b873afb0f2169b1e79c90902dc26f7d2f Mon Sep 17 00:00:00 2001
From: janekptacijarabaci <janekptacijarabaci@seznam.cz>
Date: Sun, 11 Feb 2018 07:09:55 +0100
Subject: Bug 1340164 - Fix socket transport status events

---
 netwerk/protocol/http/nsHttpTransaction.cpp | 47 +++++++++++++++++++++++++++++
 netwerk/protocol/http/nsHttpTransaction.h   |  2 ++
 2 files changed, 49 insertions(+)

(limited to 'netwerk/protocol')

diff --git a/netwerk/protocol/http/nsHttpTransaction.cpp b/netwerk/protocol/http/nsHttpTransaction.cpp
index ee3a88489..7c0c7f87d 100644
--- a/netwerk/protocol/http/nsHttpTransaction.cpp
+++ b/netwerk/protocol/http/nsHttpTransaction.cpp
@@ -144,6 +144,7 @@ nsHttpTransaction::nsHttpTransaction()
     , mIsInIsolatedMozBrowser(false)
     , mClassOfService(0)
     , m0RTTInProgress(false)
+    , mTransportStatus(NS_OK)
 {
     LOG(("Creating nsHttpTransaction @%p\n", this));
     gHttpHandler->GetMaxPipelineObjectSize(&mMaxPipelineObjectSize);
@@ -550,6 +551,50 @@ nsHttpTransaction::OnTransportStatus(nsITransport* transport,
     LOG(("nsHttpTransaction::OnSocketStatus [this=%p status=%x progress=%lld]\n",
         this, status, progress));
 
+    // A transaction can given to multiple HalfOpen sockets (this is a bug in
+    // nsHttpConnectionMgr). We are going to fix it here as a work around to be
+    // able to uplift it.
+    switch(status) {
+    case NS_NET_STATUS_RESOLVING_HOST:
+        if (mTransportStatus != NS_OK) {
+            LOG(("nsHttpTransaction::OnSocketStatus - ignore socket events "
+                 "from backup transport"));
+            return;
+        }
+        break;
+    case NS_NET_STATUS_RESOLVED_HOST:
+        if (mTransportStatus != NS_NET_STATUS_RESOLVING_HOST &&
+            mTransportStatus != NS_OK) {
+            LOG(("nsHttpTransaction::OnSocketStatus - ignore socket events "
+                 "from backup transport"));
+            return;
+        }
+        break;
+    case NS_NET_STATUS_CONNECTING_TO:
+        if (mTransportStatus != NS_NET_STATUS_RESOLVING_HOST &&
+            mTransportStatus != NS_NET_STATUS_RESOLVED_HOST  &&
+            mTransportStatus != NS_OK) {
+            LOG(("nsHttpTransaction::OnSocketStatus - ignore socket events "
+                 "from backup transport"));
+            return;
+        }
+        break;
+    case NS_NET_STATUS_CONNECTED_TO:
+        if (mTransportStatus != NS_NET_STATUS_RESOLVING_HOST &&
+            mTransportStatus != NS_NET_STATUS_RESOLVED_HOST &&
+            mTransportStatus != NS_NET_STATUS_CONNECTING_TO &&
+            mTransportStatus != NS_OK) {
+            LOG(("nsHttpTransaction::OnSocketStatus - ignore socket events "
+                 "from backup transport"));
+            return;
+        }
+        break;
+    default:
+        LOG(("nsHttpTransaction::OnSocketStatus - a new event"));
+    }
+
+    mTransportStatus = status;
+
     if (status == NS_NET_STATUS_CONNECTED_TO ||
         status == NS_NET_STATUS_WAITING_FOR) {
         nsISocketTransport *socketTransport =
@@ -1327,6 +1372,8 @@ nsHttpTransaction::Restart()
         }
     }
 
+    mTransportStatus = NS_OK;
+
     return gHttpHandler->InitiateTransaction(this, mPriority);
 }
 
diff --git a/netwerk/protocol/http/nsHttpTransaction.h b/netwerk/protocol/http/nsHttpTransaction.h
index ab0b267a7..18b2693ec 100644
--- a/netwerk/protocol/http/nsHttpTransaction.h
+++ b/netwerk/protocol/http/nsHttpTransaction.h
@@ -479,6 +479,8 @@ private:
     NetAddr                         mPeerAddr;
 
     bool                            m0RTTInProgress;
+
+    nsresult                        mTransportStatus;
 };
 
 } // namespace net
-- 
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