48 lines
858 B
Lua
48 lines
858 B
Lua
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local command = 'preview <link>'
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local doc = [[```
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/preview <link>
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Returns a full-message, "unlinked" preview.
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```]]
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local triggers = {
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'^/preview'
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}
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local action = function(msg)
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local input = msg.text:input()
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if not input then
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sendMessage(msg.chat.id, doc, true, nil, true)
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return
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end
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input = 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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sendReply(msg, 'Please provide a valid link.')
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return
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end
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if res:len() == 0 then
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sendReply(msg, 'Sorry, the link you provided is not letting us make a preview.')
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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 = '[](' .. input .. ')'
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sendMessage(msg.chat.id, output, false, nil, true)
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end
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return {
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action = action,
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triggers = triggers,
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doc = doc,
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command = command
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}
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