To prepare for better compatibility with AdGuard's own `set-constant`
scriptlet.
The 3rd position parameter which dictates how to set the value has
been converted into a vararg paramater, as follow:
..., as, function
..., as, callback
..., as, resolved
..., as, rejected
Similarly, the parameter used to dictate when the scriptlet
should become effective is now to be used as a vararg:
..., runAt, load
Related issue:
https://github.com/uBlockOrigin/uBlock-issues/issues/2783
Ideally, AdGuard would support its `stack` parameter as a
vararg, to be discussed.
Related issue:
https://github.com/uBlockOrigin/uBlock-issues/issues/2773
The `randomize` paramater introduced in https://github.com/gorhill/uBlock/commit/418087de9c
is now named `directive`, and beside the `true` value which is meant
to respond with a random 10-character string, it can now take the
following value:
war:[web_accessible_resource name]
In order to mock the XHR response with a web accessible resource. For
example:
piquark6046.github.io##+js(no-xhr-if, adsbygoogle.js, war:googlesyndication_adsbygoogle.js)
Will cause the XHR performed by the webpage to resolve to the content
of `/web_accessible_resources/googlesyndication_adsbygoogle.js`.
Should the resource not exist, the empty string will be returned.
Now support AdGuard's `randomize` parameter. If `true`,
the scriplet will generate a random 10-character string
to be returned as the response.
Reference:
https://github.com/AdguardTeam/Scriptlets/blob/master/wiki/about-scriptlets.md#prevent-xhr
AdGuard's `prevent-xhr` also support `length:n-m` form,
but since I do not see it being used, for now it's not
supported in uBO's `no-xhr-if`.
Additionally, the scriptlet will now honor `responseType` and
return the proper response type accordingly.
`fetchPropsToMatch` is an optional variable argument. If provided,
the scriplet will take effect only when the JSON data is obtained
through `Response.json()` and if there is a match with the value of
`fetchPropsToMatch` and the properties of the `Response` instance.
Examples of usage:
...##+js(json-prune, ads, , , fetchPropsToMatch, ?param=)
...##+js(json-prune, ads, , , fetchPropsToMatch, url:?param= method:get)
The optional variable argument `fetchPropsToMatch` acts as an additional
narrowing condition to fulfill before the JSON data is pruned.
Specifically, the variable argument `log` can take one of three
values to enable logging mechanism:
..., log, match => log only when there is a match
..., log, nomatch => log only when there is no match
..., log, all => log unconditionally
Prepend pattern with `!` to test for unmatched patterns in
stack trace. This applies to sctiplet parameters which purpose
is to test against the stack, i.e. `aost` and `json-prune`.
Additionally, dropped support for JSON notation in favor of
optional variable arguments notation.
Related discussion:
- https://github.com/uBlockOrigin/uBlock-discussions/discussions/789#discussioncomment-6520330
This extends logging capabilities of `json-prune` scriptlet as
follow:
...##+js(json-prune, a, b, stackNeedle, log, [logneedle], logstack, 1)
Whereas before, the only way to log `json-prune` usage was to skip
providing the property chain:
...##+js(json-prune, , b)
Where `b` was the expression to filter out logging output.
With the extended logging capabilities, the logging output can
be filtered out with `logneedle`, which can be a regex literal.
Additionally, to log the stack trace the `stackNeedle` argument
must be set to non-empty string. You can use `/.^/` to log the
stack trace without matching it.
Related issue:
- https://github.com/AdguardTeam/Scriptlets/issues/332
Additionally, uBO's own scriplet syntax now also accept quoting
the parameters with either `'` or `"`. This can be used to avoid
having to escape commas when they are present in a parameter.
Related issue:
- https://github.com/uBlockOrigin/uAssets/issues/18725
Testing the context was causing the deprecated static property
RegExp.$1 to be clobbered, causing webpage breakage because this
property was subsequently used used by the caller.
New official name: `no-window-open-if`.
The pattern will now be matched against all arguments passed
to `window.open()`: all the arguments are joined as a single
space-spearated string, and the result is used as the target
for matching the pattern.
To enable logging, used the extra parameters approach, i.e.
`log, 1`, which should come after the positional arguments
`pattern`, `delay`, and `decoy`.
Added support for extra parameter `reload, 1`. If present,
the scriplet will force a reload of the webpage if the cookie
being set was not already set.
As per feedback from filter list maintainers.
The scriptlet remove the *whole* text of a DOM node. Usage:
example.com##+js(remote-node-text, nodeName, condition, ...)
Where `condition` is a pattern to find in the target node for the
removal to occur. Since the text of the node is wholly removed,
this is not a scriplet which requires a trusted-source, as it is
virtually a similar capability as removing DOM nodes through
procedural cosmetic operator `:remove()` (which can't target
`#text` nodes), which does not require trusted-source.
Alias: `rmnt`
The extra parameters are the same as those documented for
`replace-node-text`.
For consistency, the alias for `replace-node-text` has been renamed
`rpnt`.
When scriptlets can receive extra optional paramaters, these will
now be passed as pair of extra paramaters in the filter declaration,
whereas each pair is a `name, value` instance.
As a result, the optional paramaters that can be passed to the
`aeld` scriptlet can be passed this way, i.e. no longer need
a JSON approach, example:
github.com##+js(aeld, click, , log, 1)
github.com##+js(aeld, , , runAt, idle, log, 1)
The non-optional paramaters are always positional, after which
the optional paramaters are non-positional pairs of values.
Alias: `trusted-set`
Behaves exactly like set-constant, except that any arbitrary JSON-
compatible value can be set.
By default the value is treated as a string, which can be anything.
If the value starts with `{` and ends with `}`, the value will be
JSON-parsed, and the `value` property of the resulting object will
be used.
As with any scriptlet requiring trust, filters using
`trusted-set-constant` can only come from trusted filter lists,
otherwise they are discarded.
Related discussion:
- https://github.com/uBlockOrigin/uAssets/discussions/18185#discussioncomment-5977456
This reflects the _world_ of the MV3 scripting API:
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/scripting/ExecutionWorld
MAIN: page's world
ISOLATED: extension's content script world
Some scriptlets are best executed in either world, so this
commit allows to pick in which world a scriptlet should execute
(default to MAIN).
For instance, the new sed.js scriptlet will now execute in
the ISOLATED world.
Related commit:
- 41876336db
The `tryCount` parameter has been removed.
The new default behavior of the sed.js scriptlet is to bail out
when the document itself has been fully loaded, i.e. when
DOMContentLoaded event is fired.
Two new parameters have been added to override the default quit out
behavior:
`stay, 1`
Use to force the scriptlet to stay at work forever.
`quitAfter, ms`
This tells the scriptlet to quit `ms` milliseconds after the
page has been loaded, i.e. after the DOMContentLoaded event has
been fired.
The mutation observer of the sed.js scriptlet can be a significant
overhead for pages with dynamically updated DOM, and in most cases
the scriptlet is useful only for DOM changes occurring before the
DOMContentLoaded event, so the default is to quit out when that
event is received ("quit out" means discarding the mutation observer
and having the scriptlet garbage-collected by the JS engine).
