bool
WebExtensionContentScript::Matches(const DocInfo& aDoc) const
{
if (!mFrameID.IsNull()) {
if (aDoc.FrameID() != mFrameID.Value()) {
return false;
}
} else {
if (!mAllFrames && !aDoc.IsTopLevel()) {
return false;
}
}
if (!mMatchAboutBlank && aDoc.URL().InheritsPrincipal()) {
return false;
}
// Top-level about:blank is a special case. We treat it as a match if
// matchAboutBlank is true and it has the null principal. In all other
// cases, we test the URL of the principal that it inherits.
if (mMatchAboutBlank && aDoc.IsTopLevel() &&
aDoc.URL().Spec().EqualsLiteral("about:blank") &&
aDoc.Principal() && aDoc.Principal()->GetIsNullPrincipal()) {
return true;
}
// With the exception of top-level about:blank documents with null
// principals, we never match documents that have non-codebase principals,
// including those with null principals or system principals.
if (aDoc.Principal() && !aDoc.Principal()->GetIsCodebasePrincipal()) {
return false;
}
// Content scripts are not allowed on pages that have elevated
// privileges via mozAddonManager (see bug 1280234)
if (AddonManagerWebAPI::IsValidSite(aDoc.PrincipalURL().URI())) {
return false;
}
if (mHasActiveTabPermission && aDoc.ShouldMatchActiveTabPermission()) {
return true;
}
return MatchesURI(aDoc.PrincipalURL());
}
