Add public/channel content filtering to simple_repeater#2733
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Lets a repeater decrypt channels it holds the key for (incl. the built-in public channel) and drop messages matching blocked keywords or sender names before forwarding. Configured via new "filter" CLI commands and persisted to /channel_filter. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Adds a MESH_DEBUG line on each dropped message, plus "filter stats" and "filter stats reset" commands to view/clear the filtered counter. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Folds look-alike codepoints (fullwidth, math alphanumerics, circled/ squared letters, regional indicators, Cyrillic/Greek homoglyphs, accented Latin) to plain ASCII and strips zero-width/combining marks before matching keywords and sender names. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Feature is now fully compiled out unless built with -D WITH_CHANNEL_FILTER. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Demote to a Configuration subsection with a "(When ... compiled in)" heading, matching the GPS/Sensors/Bridge sections, and drop the explicit build-flag callout. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
…ross whole message Guard data[len]=0 against an over-long crafted payload (OOB store), and match keywords against the whole folded message so a blocked word can't be hidden in the self-declared sender name. Also drop the unguarded ctype.h. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Lets a repeater decrypt channels it holds the key for (incl. the built-in public channel) and drop messages matching blocked keywords or sender names before forwarding. Configured via new "filter" CLI commands and persisted to /channel_filter.
(slop warning - untested/unreviewed as of now)