When we load about:blank in a remote tab, it will have
LOAD_FLAGS_DISALLOW_INHERIT_PRINCIPAL flag set, which will make
NullPrinicipal as its document principal. So we add
NULL_PRINCIPAL_FIRST_PARTY_DOMAIN as its firstPartyDomain.
So when we load data:, or javascript: URI in a remote tab, it will inherit the
principal from about:blank, hence also inherit the origin attributes.
There are also some about: pages will use codebase principal, so we also
set ABOUT_URI_FIRST_PARTY_DOMAIN as firstPartyDomain on their
principals.
This is meant as a temporary stopgap until we can stop using origin attributes
to store add-on IDs.
MozReview-Commit-ID: DHstOTyu7pR
--HG--
extra : rebase_source : adb8fbfaadf6e914b5aa15c2693a35056669506c
Add an origin attribute called 'firstPartyDomain'.
This value will be extracted from the URL bar.
And the purpose of this attribute is used to isolate the data-jars.
Please see the tor documentation.
https://www.torproject.org/projects/torbrowser/design/#identifier-linkability
The idea is like a superset of 'reject third party cookies', but not
only apply for cookies, it also applies to all data-jars like localStorage,
indexedDB and so on.
So basically an iframe will have its own data-jar, and this data-jar is
isolated by the URL from URL bar, for instance, an iframe
https://facebook.com inside https://cnn.com won't share data-jar with
the iframe (https://facebook.com) in https://bbc.com
Add an origin attribute called 'firstPartyDomain'.
This value will be extracted from the URL bar.
And the purpose of this attribute is used to isolate the data-jars.
Please see the tor documentation.
https://www.torproject.org/projects/torbrowser/design/#identifier-linkability
The idea is like a superset of 'reject third party cookies', but not
only apply for cookies, it also applies to all data-jars like localStorage,
indexedDB and so on.
So basically an iframe will have its own data-jar, and this data-jar is
isolated by the URL from URL bar, for instance, an iframe
https://facebook.com inside https://cnn.com won't share data-jar with
the iframe (https://facebook.com) in https://bbc.com
Add a ChromeOnly method called 'setOriginAttributes' on the XMLHttpRequest,
so that we can override the origin attributes for those XHRs running by XUL
(which will use System Principal).
caps/BasePrincipal.cpp:562:28 [-Wshadow] declaration shadows a local variable
caps/nsScriptSecurityManager.cpp:675:18 [-Wshadow] declaration shadows a local variable
caps/nsScriptSecurityManager.cpp:854:14 [-Wshadow] declaration shadows a local variable
This change renames OriginAttributes.mInBrowser to mInIsolatedMozBrowser and
nsIPrincipal::GetIsInBrowserElement to GetIsInIsolatedMozBrowserElement. Other
methods that pass these values around also have name changes.
Tokens such as "inBrowser" have previously been serialized into cache keys, used
as DB column names, stored in app registries, etc. No changes are made to any
serialization formats. Only runtime method and variable names are updated.
No behavior changes are made in this patch, so some renamed methods may have
nonsensical implementations. These are corrected in subsequent patches
focused on behavior.
MozReview-Commit-ID: 66HfMlsXFLs
