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
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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
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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
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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
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extra : rebase_source : 1b567919d2461bd0315d1a7d89f330cbd585f579