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net: fix BlockList.fromJSON for IPv4-mapped IPv6 rules#64125
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BlockList.toJSON() serializes IPv4-mapped IPv6 addresses in mixed dotted-quad form (e.g. "::ffff:192.0.2.128"), but the fromJSON() rule parser's IPv6 regexes excluded "." and capped the length at 39, so such rules were silently corrupted or dropped on a toJSON()/fromJSON() round-trip. Allow "." and raise the cap to 45 (the longest mixed form). Signed-off-by: Daijiro Wachi <daijiro.wachi@gmail.com>
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BlockList.toJSON() serializes IPv4-mapped IPv6 addresses in mixed dotted-quad form (e.g. "::ffff:192.0.2.128"), but the fromJSON() rule parser's IPv6 regexes excluded "." and capped the length at 39, so such rules were silently corrupted or dropped on a toJSON()/fromJSON() round-trip. Allow "." and raise the cap to 45 (the longest mixed form).