9f760114bd
All help messages and many other things moved from markdown to html. Eventually, I'd like only things made from user input to use markdown. cats.lua, rmspic.lua, and dilbert.lua moved to sendPhoto with URL. xkcd.lua and apod.lua not moved to retain formatting. Probably a lot of other stuff that I forget about. I should commit more often.
44 lines
1.2 KiB
Lua
44 lines
1.2 KiB
Lua
local preview = {}
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local HTTP = require('socket.http')
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local utilities = require('otouto.utilities')
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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 = config.cmd_pat .. 'preview <link> \nReturns a full-message, "unlinked" preview.'
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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(msg, preview.doc, 'html')
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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(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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utilities.send_reply(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 = '<a href="' .. input .. '">' .. utilities.char.zwnj .. '</a>'
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utilities.send_message(msg.chat.id, output, false, nil, 'html')
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end
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return preview
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