41 lines
1.0 KiB
Lua
41 lines
1.0 KiB
Lua
local preview = {}
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preview.command = 'preview <link>'
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function preview:init(config)
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preview.triggers = utilities.triggers(self.info.username, config.cmd_pat):t('preview', true).table
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preview.doc = [[```
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]]..config.cmd_pat..[[preview <link>
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Returns a full-message, "unlinked" preview.
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```]]
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end
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function preview:action(msg)
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local input = utilities.input_from_msg(msg)
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if not input then
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utilities.send_reply(self, msg, preview.doc, true)
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return
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end
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input = utilities.get_word(input, 1)
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if not input:match('^https?://.+') then
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input = 'http://' .. input
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end
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local res = http.request(input)
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if not res then
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utilities.send_reply(self, msg, 'Bitte gebe einen validen Link an.')
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return
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end
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if res:len() == 0 then
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utilities.send_reply(self, msg, 'Sorry, dieser Link lässt uns keine Vorschau erstellen.')
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return
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end
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-- Invisible zero-width, non-joiner.
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local output = '<a href="' .. input .. '">' .. utilities.char.zwnj .. '</a>'
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utilities.send_message(self, msg.chat.id, output, false, nil, 'HTML')
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end
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return preview |