This feature is hidden behind the "Developer mode" setting in
the dashboard. When "Developer mode" is enabled, a tab named
"Develop" will become available in the dashboard. This tab is
meant to contain tools for technical users.
At the moment, the "Develop" pane allows to create custom DNR
rules through a (CodeMirror-based) editor.
For the sake of convenience, the DNR rule must be entered in
YAML-like format. The format is not really full compliant YAML,
just YAML-like, and very strict in order to ensure the parser
stays simple enough.
Lines starting with `#` are comments and will be ignored by the
parser.
Any line which do not match the parser's expectation will be
marked as invalid, and the whole DNR rule containing such invalid
lines will be discarded.
There must not be empty lines inside a rule definition.
Each DNR rule must be separated with a `---` line, which is
known as a YAML document separator.
String values must not be quoted, otherwise the quotes will be
considered part of the value. There is one exception: `''` will
be parsed as "an empty string".
The editor will attempt to auto-complete known DNR keywords. That
feature will improve over time.
Though the parser will identify some errors, not all invalid DNR
rules are currently identified by the parser, and these will be
reported when the rules are registered through the DNR API. Better
identifying invalid DNR rules at edit time will improve over time.
The editor will report `regexFilter` values which are not
supported by the DNR engine on the current platform.
The editor reacts to instances of `regexFilter: ...` to report
whether a regex value is supported. This means you can test for
a regex value by using `# regexFilter: ...` so that you do not
have to create an actual DNR rules just for the sake of testing.
Custom DNR rules can be exported into a JSON file (a format
known by the DNR API as a "static ruleset").
JSON-based ruleset can be imported, the content will be converted
to YAML-like syntax.
The editor will attempt to convert to YAML pasted content which
can be JSON-parsed. It's possible to paste partially or wholly
JSON-based rulesets.
When disabling "Developer mode", all custom DNR rules will be
unregistered from the DNR API. The DNR rules content will be left
intact in such case. Existing DNR rules will be registered into
the DNR API when re-enabling "Developer mode".
Administrators can prevent "Developer mode" from being enabled
by adding `develop` token to `disabledFeatures` setting.
Related discussion:
https://github.com/uBlockOrigin/uBOL-home/discussions/323
The main motivation is to give list maintainers a tool to assist
with resolving filter issues. Custom DNR rules can assist in
crafting and validating filters meant to work with uBOL.
A secondary motivation is to provide technical users the ability
to further customize their content blocker.
More conveniences will be added over time, this is a first version.
Related discussion:
https://github.com/uBlockOrigin/uBOL-home/discussions/35#discussioncomment-11157444
New policy setting: `rulesets`
Type: array
Type of array items: string
Each item in the list is a list id (as seen in `rulesets/ruleset-details.json`),
prefixed with either `+` to enable the ruleset, or `-` to disable the ruleset.
Users will not be able to enable or disable rulesets present in the `rulesets`
policy. Disabled rulesets will not appear in the dashboard.
Use `-*` to remove all non-default rulesets, except for those added
using `+[ruleset_id]`.
Additionally, some work has been done to properly handle policy changes in
a non-blocking and deferred manner, as I observed that it often takes long
for calls to `storage.manage.get` to resolve. This potentailly takes care
of the following issue:
https://github.com/uBlockOrigin/uBOL-home/issues/174
What does not work at the time of commit:
Cosmetic filtering does not work:
The content scripts responsible for cosmetic filtering fail when
trying to inject the stylesheets through document.adoptedStyleSheets,
with the following error message:
XrayWrapper denied access to property Symbol.iterator
(reason: object is not safely Xrayable).
See https://developer.mozilla.org/en-US/docs/Xray_vision for more
information. ... css-declarative.js:106:8
A possible solution is to inject those content scripts in the
MAIN world. However Firefox scripting API does not support MAIN
world injection at the moment.
Scriptlet-filtering does not work:
Because scriptlet code needs to be injected in the MAIN world,
and this is currently not supported by Firefox's scripting API,
see https://bugzilla.mozilla.org/show_bug.cgi?id=1736575
There is no count badge on the toolbar icon in Firefox, as it
currently does not support the `DNR.setExtensionActionOptions`
method.
Other than the above issues, it does appear uBO is blocking
properly with no error reported in the dev console.
The adoptedStyleSheets issue though is worrisome, as the
cosmetic filtering content scripts were designed with ISOLATED
world injection in mind. Being forced to inject in MAIN world
(when available) make things a bit more complicated as uBO
has to ensure it's global variables do not leak into the page.
This commit fix properly handling toggling off the default
status of a list such that the list will be automatically
turned off when its status change from default to non-default.
Additionally, imported lists which become stock lists will
be properly migrated from imported lists section.
Related issue:
- https://github.com/uBlockOrigin/uBlock-issues/issues/2358
We need two different branches of uAssets to properly add the
default filter lists into the packages. I couldn't figure out
how to do this with submodules, using simple `git clone` as a
dependency just work.
This is a replacement for the dubious approach when the
extension itself was used to run benchmarks to detect
performance and filtering behavior regressions.
The main nodejs flavor is "npm", which is to be used to
lint/test and the publication of an official npm
package -- and by design it has dependencies on mocha,
eslint, etc.
A new flavor "dig" has been created with minimal
dependencies and which purpose is to easily allow to
write specialized code to investigate local code changes
in uBO -- and it's not meant for publication.
Consequently, "make nodejs" has been replaced with
"make npm", and a new "dig" target has been added to the
makefile, to be used for instrumenting local code changes
for investigation purpose.
