[tbb-commits] [tor-browser] 04/07: Bug 41050: HTTPS-Only Mode Alert's "Continue to HTTP Site" button doesn't work on IP addresses

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pierov pushed a commit to branch tor-browser-91.11.0esr-11.5-1
in repository tor-browser.

commit b8802512aad78b5430cc0515ff7bbcdf86a00e00
Author: Pier Angelo Vendrame <pierov at torproject.org>
AuthorDate: Mon Jul 18 18:56:13 2022 +0200

    Bug 41050: HTTPS-Only Mode Alert's "Continue to HTTP Site" button doesn't work on IP addresses
    
    This bug has already been fixed upstream, so we should drop this patch
    when we update to 102.
    See also https://bugzilla.mozilla.org/show_bug.cgi?id=1697866.
---
 toolkit/actors/AboutHttpsOnlyErrorParent.jsm | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/toolkit/actors/AboutHttpsOnlyErrorParent.jsm b/toolkit/actors/AboutHttpsOnlyErrorParent.jsm
index 407e014ff6574..5b6bc94ab88ff 100644
--- a/toolkit/actors/AboutHttpsOnlyErrorParent.jsm
+++ b/toolkit/actors/AboutHttpsOnlyErrorParent.jsm
@@ -87,6 +87,19 @@ class AboutHttpsOnlyErrorParent extends JSWindowActorParent {
     const oldOriginAttributes = aBrowser.contentPrincipal.originAttributes;
     const hasFpiAttribute = !!oldOriginAttributes.firstPartyDomain.length;
 
+    let firstPartyDomain = "";
+    if (hasFpiAttribute) {
+      // This try-catch to check whether a host is an IP address is used also in
+      // other parts of Firefox
+      try {
+        firstPartyDomain = Services.eTLD.getBaseDomain(newURI);
+      } catch (e) {
+        if (e.result == Cr.NS_ERROR_HOST_IS_IP_ADDRESS) {
+          firstPartyDomain = newURI.host;
+        }
+      }
+    }
+
     // Create new content principal for the permission. If first-party isolation
     // is enabled, we have to replace the about-page first-party domain with the
     // one from the exempt website.
@@ -94,9 +107,7 @@ class AboutHttpsOnlyErrorParent extends JSWindowActorParent {
       newURI,
       {
         ...oldOriginAttributes,
-        firstPartyDomain: hasFpiAttribute
-          ? Services.eTLD.getBaseDomain(newURI)
-          : "",
+        firstPartyDomain,
       }
     );
 

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