The change to test_clonewrapper.xul is because in the new setup we've already
tried handing an object across origins via chrome code, so it has a cached
(opaque) wrapper. When we set document.domain and pass the same object again,
we end up picking up the cached wrapper when we try to wrap across the
compartment boundary, so don't grant access when perhaps we should...
This does lead to a possible spec violation in the following situation:
1) Two documents (A, B) start out same-site but different-origin.
2) Privileged code (system or extension) puts a reference to an object from
site A into site B. This object gets an opaque CCW.
3) Both sites set document.domain to become same-effective-script-origin and
then site B goes through the site A Window and the object graph hanging off it
and gets to the object involved. It gets an opaque CCW when it should have a
transparent CCW.
We could fix this if we kept recomputing wrappers on document.domain change and
just fixed the compartment filter used by the recomputation. But this seems
like a pretty rare situation, and not one web sites can get into without an
assist from a somewhat buggy extension or system code, so let's see whether we
can just live with it and remove the recomputation.
Differential Revision: https://phabricator.services.mozilla.com/D18032
--HG--
extra : moz-landing-system : lando
Because it release-asserts the compartment has a single realm.
I also renamed JS_GetCompartmentPrincipals to JS_DeprecatedGetCompartmentPrincipals
to discourage people from using it.
Differential Revision: https://phabricator.services.mozilla.com/D14252
--HG--
extra : moz-landing-system : lando
The problem is that we used ThirdPartyUtil.getBaseDomain and for IP addresses that
returns the host, and for IPv6 addresses GetHost strips the '[' and ']' brackets.
Then when we passed that IP address to SetHost, we failed because SetHost wants
the brackets to be present.
This patch changes GetSiteOrigin to call getBaseDomain on the TLD service instead,
so we can handle this case ourselves by not calling SetHost when we have an IP
address. GetBaseDomain still uses ThirdPartyUtil.
I tried to add a test for this (with an iframe + postMessage) but the mochitest
http server doesn't support IPv6.
Differential Revision: https://phabricator.services.mozilla.com/D6523
--HG--
extra : moz-landing-system : lando
This will let us answer the following questions (in a performant way):
1) What's the compartment's origin? Necessary to implement compartment-per-origin.
2) What's the origin's site? Necessary for the new Wrap() algorithm.
3) Has any realm in the compartment set document.domain? Necessary for the new Wrap() algorithm.
Differential Revision: https://phabricator.services.mozilla.com/D5423
--HG--
extra : moz-landing-system : lando
This fixes two issues:
1) We no longer SetHasExplicitDomain() when the domain is null.
2) We avoid the unnecessary (because new principal) wrapper recomputation.
Differential Revision: https://phabricator.services.mozilla.com/D5160
--HG--
extra : moz-landing-system : lando
nsIURIWithPrincipal is currently used to retrieve the nsIPrincipal from a
BlobURL object. BlobURLProtocolHandler has a hashtable containing, for each
blobURL, a BlobImpl and its nsIPrincipal. This patch introduces
BlobURLProtocolHandler::GetBlobURLPrincipal() that retrieves the nsIPrincipal
from this hashtable.
This patch fixes also a bug in how the revocation of blobURLs is broadcasted to
other processes. This should be done immediately because each process creates
its own timer to revoke them after 5 seconds.
An important change is related to NS_SecurityCompareURIs() where, if 1 (or
both) of the 2 URIs to compare, is a revoked BlobURL, we will QI its URL to
nsIStandardURL and fail out at that point.
Making about:home unlinkable changes its URL structure. Prior to this change,
it is a nested URL. After this change, it no longer is.
We store serialized versions of principals in some cases. These include
details about whether the URI is nested etc. This is problematic for the
about:home change because the change in nesting changes the origin of the
page, so the origin would mismatch between the principal and its URL.
To avoid this, we always re-create URIs for about: URIs when deserializing
them from strings, ensuring we don't create bogus principals.
MozReview-Commit-ID: 87zVUFgbusn
--HG--
extra : rebase_source : a7ad0dc3b1ea39521517da648f234d35d9a1729f
Going through the extension policy service rather than using
WebExtensionPolicy objects directly adds a lot of unnecessary overhead to
common operations on extension principals, and also makes the code more
complicated than it needs to be.
We also use weak references to policy objects here, since principals should
ideally lose as much of their elevated privileges as possible once the
extension instance that created them has been destroyed (which is something we
couldn't handle easily when we simply tracked ID strings).
MozReview-Commit-ID: KDNvVdvLkIt
--HG--
extra : rebase_source : 1b567919d2461bd0315d1a7d89f330cbd585f579
Jonathan Kingston
Sylvestre Ledru
arthur.iakab
Christoph Kerschbaumer
Jan Varga
Ryan Hunt
Boris Zbarsky
Gijs Kruitbosch
Jan de Mooij
Andrea Marchesini
Nika Layzell
Tiberius Oros
Jorg K
Valentin Gosu
Chris Peterson
Jason Orendorff
Andrew McCreight
Kris Maglione
Bobby Holley
Sebastian Hengst
Eric Rahm