90 lines
2.4 KiB
Groff
90 lines
2.4 KiB
Groff
.\"
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.\" Copyright (c) 2019 Ted Unangst
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.\"
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.\" Permission to use, copy, modify, and distribute this software for any
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.\" purpose with or without fee is hereby granted, provided that the above
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.\" copyright notice and this permission notice appear in all copies.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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.\"
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.Dd $Mdocdate$
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.Dt HFCS 1
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.Os
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.Sh NAME
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.Nm hfcs
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.Nd honk filtering and censorship system
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.Sh DESCRIPTION
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The honk filtering and censorship system,
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.Nm hfcs ,
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controls what messages are seen and how they are presented to the user.
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Filter rules are based on a series of matches and actions.
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It is accessed via the
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.Pa filters
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menu item.
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.Pp
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The following match types are possible.
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All nonempty criteria must match.
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.Bl -tag -width include-audience
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.It Ar who
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Match an actor or domain name.
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Matches against
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.Fa Ar actor
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property.
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.It Ar include audience
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Previous match is applied against
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.Fa to
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and
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.Fa cc
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fields as well.
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.It Ar text
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Regular expression match against the post
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.Fa content .
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.It Ar is announce
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Is announced (shared).
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.It Ar announce of
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Limit prevous match to only specified actor or domain name.
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.El
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.Pp
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The following actions may be applied.
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Multiple actions may be applied, but some are subsumed by others.
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.Bl -tag -width tenletters
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.It Ar reject
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Reject this message entirely.
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.It Ar skip media
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Don't include images or attachments.
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.It Ar hide
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Remove this message from most feeds.
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.It Ar collapse
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Show only a short summary with click to view content.
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.It Ar rewrite
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Rewrite message content, using
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.Ar replace
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replacement text.
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.El
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.Pp
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The
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.Ar text
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and
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.Ar rewrite
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fields are case insensitive word anchored regular expressions.
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Specifically, an argument
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.Ql re
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will be automatically rewritten as
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.Ql \\\b(?i:re)\\\b .
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The
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.Ar replace
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text may refer to submatches using $1, etc.
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.Pp
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An optional expiration may be specified as a duration.
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XdYhZm for X days, Y hours, and Z minutes.
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.Sh SEE ALSO
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.Xr honk 1
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.Sh CAVEATS
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Not seeing is not erasing.
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