commit 4edbd21ab9244671cb77cf9a4de5e1126079146e Author: David Keeler dkeeler@mozilla.com Date: Fri Mar 9 14:16:57 2018 -0800

Bug 1444532 - Fix a leak in SHA256 in nsHttpConnectionInfo.cpp. r=mayhemer, a=jcristau

The original code (from bug 1200802) declared an XPCOM object as a static bare pointer, which for future reference is probably never the right thing to do. It might have worked if it was cleared before shutdown but it never was.

MozReview-Commit-ID: EMe7wgzm6zv

--HG-- extra : rebase_source : 16c36a76e39b762e87c7d3c74e64204d7ca9929d extra : source : ad1e07a06363096efbfbf115cbc274c4ee9dcd40 --- netwerk/protocol/http/nsHttpConnectionInfo.cpp | 28 +++++++++++--------------- 1 file changed, 12 insertions(+), 16 deletions(-)

diff --git a/netwerk/protocol/http/nsHttpConnectionInfo.cpp b/netwerk/protocol/http/nsHttpConnectionInfo.cpp index e965fd1cc2e9..4b9c84a7ed62 100644 --- a/netwerk/protocol/http/nsHttpConnectionInfo.cpp +++ b/netwerk/protocol/http/nsHttpConnectionInfo.cpp @@ -14,33 +14,29 @@ #define LOG_ENABLED() LOG5_ENABLED()

#include "nsHttpConnectionInfo.h" + #include "mozilla/net/DNS.h" -#include "prnetdb.h" -#include "nsICryptoHash.h" #include "nsComponentManagerUtils.h" +#include "nsICryptoHash.h" #include "nsIProtocolProxyService.h" +#include "nsNetCID.h" +#include "prnetdb.h"

static nsresult SHA256(const char* aPlainText, nsAutoCString& aResult) { - static nsICryptoHash* hasher = nullptr; - nsresult rv; - if (!hasher) { - rv = CallCreateInstance("@mozilla.org/security/hash;1", &hasher); + nsresult rv; + nsCOMPtr<nsICryptoHash> hasher = + do_CreateInstance(NS_CRYPTO_HASH_CONTRACTID, &rv); if (NS_FAILED(rv)) { LOG(("nsHttpDigestAuth: no crypto hash!\n")); return rv; } - } - - rv = hasher->Init(nsICryptoHash::SHA256); - NS_ENSURE_SUCCESS(rv, rv); - - rv = hasher->Update((unsigned char*) aPlainText, strlen(aPlainText)); - NS_ENSURE_SUCCESS(rv, rv); - - rv = hasher->Finish(false, aResult); - return rv; + rv = hasher->Init(nsICryptoHash::SHA256); + NS_ENSURE_SUCCESS(rv, rv); + rv = hasher->Update((unsigned char*) aPlainText, strlen(aPlainText)); + NS_ENSURE_SUCCESS(rv, rv); + return hasher->Finish(false, aResult); }

namespace mozilla {