Related commits:
- 0662767dd6
- 99b2a0a761
- a8e3118fea
- 453f5450b6
- a45a21f337
This commit focuses on implementing the use of
CSS `var(...)` throughout so as to make it easy
to create themes -- a requirement for uBO to
support a dark theme.
There is still work to do regarding converting
uBO's CSS to completely support `var(...)` but
being able to start using theming will help
complete and fine tune CSS `var(...)` support.
Related issue:
- https://github.com/uBlockOrigin/uBlock-issues/issues/401
Related commits:
- a8e3118fea
- 453f5450b6
- a45a21f337
Roughly, the changes in this commit:
- Make it easier to implement a dark theme eventually:
- Flatten the look of buttons
- Remove the use of `opacity` style property as a
color modifier
- Some work toward removing dependency on FontAwesome
font
Related commits:
- 453f5450b6
- a45a21f337
This commit fixes parts of the re-design not
rendering as intended as per <https://github.com/brampitoyo>'s
feedback screenshots.
The dashboard tab buttons have been converted to
`span` tags (from `a` tags), thus eliminating
the unwanted side effect of the text being
rendered as unvisited links (blueish).
The font size intended for touch screens was not
taking effect due to bad cut & paste.
Other minor adjustments to improve consistency
in spacing.
This commit add the ability to fetch from CDN servers
when an asset is fetched as a result of auto-update.
If an asset has a `cdnURLs` entry in `assets.json`,
the asset will be auto-updated using one of those
CDN URLs. When many CDN URLs are specified, those
URLs will be shuffled in order to spread the bandwidth
across all specified CDN servers. If all specified CDN
servers fail to respond, uBO will fall back to usual
`contentURLs` entry.
The `cdnURLs` are used only when an asset is
auto-updated, this ensures a user will get the more
recent available version of an asset when manually
updating.
The motivation of this new feature is to relieve
GitHub from acting as a CDN (which it is not) for
uBO -- an increasing concern with the growing adoption
of uBO along with the growing size of key uBO assets.
Related commit:
- 453f5450b6
The changes in this commit are mostly related
to the "Filter lists" pane.
An eye icon has been added, which purpose is
to view the content of a list. Clicking on the
name of the list will toggle the list's
checkbox.
Related issue:
- https://github.com/uBlockOrigin/uBlock-issues/issues/974
Related feedback:
- https://www.reddit.com/r/uBlockOrigin/comments/fuscia/
The race condition was that a content script could
query the main process to retrieve cosmetic filters
while the cosmetic filters had not been yet fully
loaded into memory. The fix ensure that an already
injected content script will re-query once the
cosmetic filters are fully loaded in memory at
browser launch time.
Related issue:
- https://github.com/uBlockOrigin/uBlock-issues/issues/959
The problematic site does not declare the expected
`disqus_shortname` global variable, so the scriptlet
has been extended to deal with such occurrence.
Related issue:
- https://github.com/uBlockOrigin/uBlock-issues/issues/911
Since cname-uncloaking is available only on Firefox
at the moment, the fix is relevant only to Firefox.
By default uBO will no longer cname-uncloak when it
detects that network requests are being being proxied.
This default behavior can be overriden by setting the
new advanced setting `cnameUncloakProxied` to `true`.
The new setting default to `false`, i.e. cname-uncloaking
is disabled when uBO detects that a proxy is in use.
This new advanced setting may disappear once the
following Firefox issue is fixed:
- https://bugzilla.mozilla.org/show_bug.cgi?id=1618271
Provide a way to optionally deduplicate filter
instances, useful for filter instances with:
- high likelihood of duplication; and
- non-trivial memory footprint per instance
- For examples, filter instances to implement
`domain=`, `denyallow=`, `csp=`.
Cursory tests show this helps further reduce
uBO's memory footprint.
This concerns the static network filtering engine.
Related issue:
- https://github.com/uBlockOrigin/uBlock-issues/issues/943
* * *
New static network filter type: `cname`
By default, network requests which are result of
resolving a canonical name are subject to filtering.
This filtering can be bypassed by creating exception
filters using the `cname` option. For example:
@@*$cname
The filter above tells the network filtering engine
to except network requests which fulfill all the
following conditions:
- network request is blocked
- network request is that of an unaliased hostname
Filter list authors are discouraged from using
exception filters of `cname` type, unless there no
other practical solution such that maintenance
burden become the greater issue. Of course, such
exception filters should be as narrow as possible,
i.e. apply to specific domain, etc.
* * *
New static network filter option: `denyallow`
The purpose of `denyallow` is bring
default-deny/allow-exceptionally ability into static
network filtering arsenal. Example of usage:
*$3p,script, \
denyallow=x.com|y.com \
domain=a.com|b.com
The above filter tells the network filtering engine that
when the context is `a.com` or `b.com`, block all
3rd-party scripts except those from `x.com` and `y.com`.
Essentially, the new `denyallow` option makes it easier
to implement default-deny/allow-exceptionally in static
filter lists, whereas before this had to be done with
unwieldy regular expressions[1], or through the mix of
broadly blocking filters along with exception filters[2].
[1] https://hg.adblockplus.org/ruadlist/rev/f362910bc9a0
[2] Typically filters which pattern are of the
form `|http*://`
Related issue:
- https://github.com/uBlockOrigin/uBlock-issues/issues/923
Use current page's hostname instead of that of
image URLs to decide whether to reset pattern
union with previous picker sessions.
The fixed issue arose from the fact that the
page uses URLs from different origins in a
single srcset attribute.
Related commit:
- https://github.com/gorhill/uBlock/commit/703c525b01aa
This adds an indentation requirement for line
continuation to take place. The conditions are now
as follow:
- Current line ends with ` \`: ASCII space + backslash
- Next line starts with ` `: four ASCII spaces
If a line in a filter list ends with a space
(ASCII code 32) followed by a backslash
(ASCII code 92), those two characters will be
removed, the line will be trimmed and the next
line will be trimmed and concatenated to form
a new, longer line.
The purpose is to give filter list authors
a way to visually break apart unduly long
filters and thus make maintenance easier.
When line continuation is used, it is suggested
that the extra lines are prepended with four
space so as to make it more visually obvious that
the extra line(s) are the continuation of a
previous line.
Related issue:
- https://github.com/uBlockOrigin/uBlock-issues/issues/943
The filter referenced in the above issue was the
motivation to implement this feature:
- https://hg.adblockplus.org/ruadlist/rev/f362910bc9a0
I verified and could not find any instance in major
filter lists of lines ending with ` \`, thus the
change should be safe.
The new syntax deprecate the old syntax, though the
old syntax will still be supported until it's no
longer used in mainstream filter lists.
The new syntax is:
example.com##+js(window.open-defuser, pattern, seconds)
`pattern`:
A pattern to match for the defusing to take place.
Patterns which starts and ends with `/` will be
interpreted as regular expressions. To NOT match a
pattern, prefix with `!`.
`seconds`:
If not present, no window will be opened and the
scriptlet will return `null`.
If present and a valid integer value, the defuser
will return a valid window object even though no
popup window is opened. The returned window object
will cease to be valid after the specified number
of seconds.
Reported internally. The following invalid filter was not
discarded by uBO:
123tvnow.com##.123tv-ads
The correct form should be:
123tvnow.com##.\31 23tv-ads
Not discarding invalid CSS selector-based cosmetic
filter may break CSS selector-based cosmetic
filtering.
***
New procedural cosmetic operator: `:remove()`
Related issue:
- https://github.com/gorhill/uBlock/issues/2252
The purpose is to outright remove elements from the
DOM tree. Since `:remove()` is an "action" operator,
it must only be used as a trailing operator (just
like the `:style()` operator).
AdGuard's cosmetic filter syntax `{ remove: true; }`
will be converted to uBO's `:remove()` operator
internally.
***
New procedural cosmetic operator: `:upward(...)`
The purpose is to lookup an ancestor element.
When used with an integer argument, it is synonym of
`:nth-ancestor()`, which will be deprecated and which
will no longer be supported once no longer used in
mainstream filter lists.
Filter lists maintainers must only use `:upward(int)`
instead of `:nth-ancestor(int)` once the new operator
become available in all stable releases of uBO.
`:upward()` can also accept a CSS selector as argument,
in which case the nearest ancestor which matches the
CSS selector will be selected.
