import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

netwerk/cookie/CookieServiceChild.cpp

@@ -0,0 +1,243 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/net/CookieServiceChild.h"
+#include "mozilla/LoadInfo.h"
+#include "mozilla/BasePrincipal.h"
+#include "mozilla/ipc/URIUtils.h"
+#include "mozilla/net/NeckoChild.h"
+#include "nsIChannel.h"
+#include "nsIURI.h"
+#include "nsIPrefService.h"
+#include "nsIPrefBranch.h"
+#include "nsServiceManagerUtils.h"
+
+using namespace mozilla::ipc;
+
+namespace mozilla {
+namespace net {
+
+// Pref string constants
+static const char kPrefCookieBehavior[] = "network.cookie.cookieBehavior";
+static const char kPrefThirdPartySession[] =
+  "network.cookie.thirdparty.sessionOnly";
+
+static CookieServiceChild *gCookieService;
+
+CookieServiceChild*
+CookieServiceChild::GetSingleton()
+{
+  if (!gCookieService)
+    gCookieService = new CookieServiceChild();
+
+  NS_ADDREF(gCookieService);
+  return gCookieService;
+}
+
+NS_IMPL_ISUPPORTS(CookieServiceChild,
+                  nsICookieService,
+                  nsIObserver,
+                  nsISupportsWeakReference)
+
+CookieServiceChild::CookieServiceChild()
+  : mCookieBehavior(nsICookieService::BEHAVIOR_ACCEPT)
+  , mThirdPartySession(false)
+{
+  NS_ASSERTION(IsNeckoChild(), "not a child process");
+
+  // This corresponds to Release() in DeallocPCookieService.
+  NS_ADDREF_THIS();
+
+  // Create a child PCookieService actor.
+  NeckoChild::InitNeckoChild();
+  gNeckoChild->SendPCookieServiceConstructor(this);
+
+  // Init our prefs and observer.
+  nsCOMPtr<nsIPrefBranch> prefBranch =
+    do_GetService(NS_PREFSERVICE_CONTRACTID);
+  NS_WARNING_ASSERTION(prefBranch, "no prefservice");
+  if (prefBranch) {
+    prefBranch->AddObserver(kPrefCookieBehavior, this, true);
+    prefBranch->AddObserver(kPrefThirdPartySession, this, true);
+    PrefChanged(prefBranch);
+  }
+}
+
+CookieServiceChild::~CookieServiceChild()
+{
+  gCookieService = nullptr;
+}
+
+void
+CookieServiceChild::PrefChanged(nsIPrefBranch *aPrefBranch)
+{
+  int32_t val;
+  if (NS_SUCCEEDED(aPrefBranch->GetIntPref(kPrefCookieBehavior, &val)))
+    mCookieBehavior =
+      val >= nsICookieService::BEHAVIOR_ACCEPT &&
+      val <= nsICookieService::BEHAVIOR_LIMIT_FOREIGN
+        ? val : nsICookieService::BEHAVIOR_ACCEPT;
+
+  bool boolval;
+  if (NS_SUCCEEDED(aPrefBranch->GetBoolPref(kPrefThirdPartySession, &boolval)))
+    mThirdPartySession = !!boolval;
+
+  if (!mThirdPartyUtil && RequireThirdPartyCheck()) {
+    mThirdPartyUtil = do_GetService(THIRDPARTYUTIL_CONTRACTID);
+    NS_ASSERTION(mThirdPartyUtil, "require ThirdPartyUtil service");
+  }
+}
+
+bool
+CookieServiceChild::RequireThirdPartyCheck()
+{
+  return mCookieBehavior == nsICookieService::BEHAVIOR_REJECT_FOREIGN ||
+    mCookieBehavior == nsICookieService::BEHAVIOR_LIMIT_FOREIGN ||
+    mThirdPartySession;
+}
+
+nsresult
+CookieServiceChild::GetCookieStringInternal(nsIURI *aHostURI,
+                                            nsIChannel *aChannel,
+                                            char **aCookieString,
+                                            bool aFromHttp)
+{
+  NS_ENSURE_ARG(aHostURI);
+  NS_ENSURE_ARG_POINTER(aCookieString);
+
+  *aCookieString = nullptr;
+
+  // Fast past: don't bother sending IPC messages about nullprincipal'd
+  // documents.
+  nsAutoCString scheme;
+  aHostURI->GetScheme(scheme);
+  if (scheme.EqualsLiteral("moz-nullprincipal"))
+    return NS_OK;
+
+  // Determine whether the request is foreign. Failure is acceptable.
+  bool isForeign = true;
+  if (RequireThirdPartyCheck())
+    mThirdPartyUtil->IsThirdPartyChannel(aChannel, aHostURI, &isForeign);
+
+  URIParams uriParams;
+  SerializeURI(aHostURI, uriParams);
+
+  mozilla::NeckoOriginAttributes attrs;
+  if (aChannel) {
+    nsCOMPtr<nsILoadInfo> loadInfo = aChannel->GetLoadInfo();
+    if (loadInfo) {
+      attrs = loadInfo->GetOriginAttributes();
+    }
+  }
+
+  // Synchronously call the parent.
+  nsAutoCString result;
+  SendGetCookieString(uriParams, !!isForeign, aFromHttp, attrs, &result);
+  if (!result.IsEmpty())
+    *aCookieString = ToNewCString(result);
+
+  return NS_OK;
+}
+
+nsresult
+CookieServiceChild::SetCookieStringInternal(nsIURI *aHostURI,
+                                            nsIChannel *aChannel,
+                                            const char *aCookieString,
+                                            const char *aServerTime,
+                                            bool aFromHttp)
+{
+  NS_ENSURE_ARG(aHostURI);
+  NS_ENSURE_ARG_POINTER(aCookieString);
+
+  // Fast past: don't bother sending IPC messages about nullprincipal'd
+  // documents.
+  nsAutoCString scheme;
+  aHostURI->GetScheme(scheme);
+  if (scheme.EqualsLiteral("moz-nullprincipal"))
+    return NS_OK;
+
+  // Determine whether the request is foreign. Failure is acceptable.
+  bool isForeign = true;
+  if (RequireThirdPartyCheck())
+    mThirdPartyUtil->IsThirdPartyChannel(aChannel, aHostURI, &isForeign);
+
+  nsDependentCString cookieString(aCookieString);
+  nsDependentCString serverTime;
+  if (aServerTime)
+    serverTime.Rebind(aServerTime);
+
+  URIParams uriParams;
+  SerializeURI(aHostURI, uriParams);
+
+  mozilla::NeckoOriginAttributes attrs;
+  if (aChannel) {
+    nsCOMPtr<nsILoadInfo> loadInfo = aChannel->GetLoadInfo();
+    if (loadInfo) {
+      attrs = loadInfo->GetOriginAttributes();
+    }
+  }
+
+  // Synchronously call the parent.
+  SendSetCookieString(uriParams, !!isForeign, cookieString, serverTime,
+                      aFromHttp, attrs);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+CookieServiceChild::Observe(nsISupports     *aSubject,
+                            const char      *aTopic,
+                            const char16_t *aData)
+{
+  NS_ASSERTION(strcmp(aTopic, NS_PREFBRANCH_PREFCHANGE_TOPIC_ID) == 0,
+               "not a pref change topic!");
+
+  nsCOMPtr<nsIPrefBranch> prefBranch = do_QueryInterface(aSubject);
+  if (prefBranch)
+    PrefChanged(prefBranch);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+CookieServiceChild::GetCookieString(nsIURI *aHostURI,
+                                    nsIChannel *aChannel,
+                                    char **aCookieString)
+{
+  return GetCookieStringInternal(aHostURI, aChannel, aCookieString, false);
+}
+
+NS_IMETHODIMP
+CookieServiceChild::GetCookieStringFromHttp(nsIURI *aHostURI,
+                                            nsIURI *aFirstURI,
+                                            nsIChannel *aChannel,
+                                            char **aCookieString)
+{
+  return GetCookieStringInternal(aHostURI, aChannel, aCookieString, true);
+}
+
+NS_IMETHODIMP
+CookieServiceChild::SetCookieString(nsIURI *aHostURI,
+                                    nsIPrompt *aPrompt,
+                                    const char *aCookieString,
+                                    nsIChannel *aChannel)
+{
+  return SetCookieStringInternal(aHostURI, aChannel, aCookieString,
+                                 nullptr, false);
+}
+
+NS_IMETHODIMP
+CookieServiceChild::SetCookieStringFromHttp(nsIURI     *aHostURI,
+                                            nsIURI     *aFirstURI,
+                                            nsIPrompt  *aPrompt,
+                                            const char *aCookieString,
+                                            const char *aServerTime,
+                                            nsIChannel *aChannel) 
+{
+  return SetCookieStringInternal(aHostURI, aChannel, aCookieString,
+                                 aServerTime, true);
+}
+
+} // namespace net
+} // namespace mozilla
+