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[tor-commits] [tor-browser/tor-browser-68.2.0esr-9.5-1] Bug 1534339 - make OriginAttributes deserializable; r=baku



commit 6dfcb949b8375614b588a191035c5cc36fa3e943
Author: Liang-Heng Chen <xeonchen@xxxxxxxxx>
Date:   Wed Oct 23 14:10:19 2019 +0000

    Bug 1534339 - make OriginAttributes deserializable; r=baku
    
    `CreateSuffix` is irreversible by `PopulateFromSuffix` because it uses a multi-to-one mapping.
    Since only ':' will happen in a IPv6 format, we can make it a 1-to-1 mapping so that the `firstPartyDomain` is consistent after `CreateSuffix` and `PopulateFromSuffix`.
    
    Differential Revision: https://phabricator.services.mozilla.com/D47910
    
    --HG--
    extra : moz-landing-system : lando
---
 caps/OriginAttributes.cpp                 | 10 +++++++---
 caps/tests/gtest/TestOriginAttributes.cpp |  2 ++
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/caps/OriginAttributes.cpp b/caps/OriginAttributes.cpp
index 0737bce36321..e987f0e4fc2e 100644
--- a/caps/OriginAttributes.cpp
+++ b/caps/OriginAttributes.cpp
@@ -13,6 +13,9 @@
 #include "nsIURI.h"
 #include "nsURLHelper.h"
 
+static const char kSourceChar = ':';
+static const char kSanitizedChar = '+';
+
 namespace mozilla {
 
 using dom::URLParams;
@@ -158,8 +161,7 @@ void OriginAttributes::CreateSuffix(nsACString& aStr) const {
 
   if (!mFirstPartyDomain.IsEmpty()) {
     nsAutoString sanitizedFirstPartyDomain(mFirstPartyDomain);
-    sanitizedFirstPartyDomain.ReplaceChar(
-        dom::quota::QuotaManager::kReplaceChars, '+');
+    sanitizedFirstPartyDomain.ReplaceChar(kSourceChar, kSanitizedChar);
 
     params.Set(NS_LITERAL_STRING("firstPartyDomain"),
                sanitizedFirstPartyDomain);
@@ -246,7 +248,9 @@ class MOZ_STACK_CLASS PopulateFromSuffixIterator final
 
     if (aName.EqualsLiteral("firstPartyDomain")) {
       MOZ_RELEASE_ASSERT(mOriginAttributes->mFirstPartyDomain.IsEmpty());
-      mOriginAttributes->mFirstPartyDomain.Assign(aValue);
+      nsAutoString firstPartyDomain(aValue);
+      firstPartyDomain.ReplaceChar(kSanitizedChar, kSourceChar);
+      mOriginAttributes->mFirstPartyDomain.Assign(firstPartyDomain);
       return true;
     }
 
diff --git a/caps/tests/gtest/TestOriginAttributes.cpp b/caps/tests/gtest/TestOriginAttributes.cpp
index 582de8c1c9d3..e86c5248689d 100644
--- a/caps/tests/gtest/TestOriginAttributes.cpp
+++ b/caps/tests/gtest/TestOriginAttributes.cpp
@@ -26,6 +26,8 @@ static void TestFPD(const nsAString& spec, const nsAString& fpd) {
   ASSERT_EQ(NS_NewURI(getter_AddRefs(url), spec), NS_OK);
   attrs.SetFirstPartyDomain(true, url);
   EXPECT_TRUE(attrs.mFirstPartyDomain.Equals(fpd));
+
+  TestSuffix(attrs);
 }
 
 TEST(OriginAttributes, Suffix_default)



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