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filter.lua
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filter.lua
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--[[
mattata v2.0 - Filter Plugin
]]
local plugin = {}
plugin.name = 'filter'
plugin.category = 'admin'
plugin.description = 'Add content filters to the group'
plugin.commands = { 'filter', 'addfilter' }
plugin.help = '/filter <pattern> [action] - Adds a filter. Actions: delete (default), warn, ban, kick.'
plugin.group_only = true
plugin.admin_only = true
local VALID_ACTIONS = {
delete = true,
warn = true,
ban = true,
kick = true,
mute = true
}
function plugin.on_message(api, message, ctx)
local tools = require('telegram-bot-lua.tools')
if not message.args then
return api.send_message(message.chat.id, 'Usage: /filter <pattern> [action]\nActions: delete (default), warn, ban, kick, mute', 'html')
end
local pattern, action
if message.args:match('^(.+)%s+(delete|warn|ban|kick|mute)$') then
pattern, action = message.args:match('^(.+)%s+(delete|warn|ban|kick|mute)$')
else
pattern = message.args
action = 'delete'
end
pattern = pattern:match('^%s*(.-)%s*$') -- trim
if pattern == '' then
return api.send_message(message.chat.id, 'Please provide a pattern to filter.')
end
-- Validate regex pattern
local ok = pcall(string.match, '', pattern)
if not ok then
return api.send_message(message.chat.id, 'Invalid pattern. Please provide a valid Lua pattern.')
end
-- Check for duplicate
local existing = ctx.db.execute(
'SELECT id FROM filters WHERE chat_id = $1 AND pattern = $2',
{ message.chat.id, pattern }
)
if existing and #existing > 0 then
-- Update the action if filter already exists
ctx.db.execute(
'UPDATE filters SET action = $1 WHERE chat_id = $2 AND pattern = $3',
{ action, message.chat.id, pattern }
)
require('src.core.session').invalidate_cached_list(message.chat.id, 'filters')
return api.send_message(message.chat.id, string.format(
'Filter <code>%s</code> updated with action: <b>%s</b>.',
tools.escape_html(pattern), action
), 'html')
end
ctx.db.insert('filters', {
chat_id = message.chat.id,
pattern = pattern,
action = action,
created_by = message.from.id
})
-- Invalidate filter cache
require('src.core.session').invalidate_cached_list(message.chat.id, 'filters')
api.send_message(message.chat.id, string.format(
'Filter added: <code>%s</code> (action: <b>%s</b>)',
tools.escape_html(pattern), action
), 'html')
end
return plugin

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