27 lines
705 B
Lua
27 lines
705 B
Lua
local function run(msg, patterns)
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local response_body = {}
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local request_constructor = {
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url = patterns[1],
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method = "HEAD",
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sink = ltn12.sink.table(response_body),
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headers = {},
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redirect = false
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}
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local ok, response_code, response_headers, response_status_line = http.request(request_constructor)
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if ok and response_headers.location then
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return " 👍 " .. response_headers.location
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else
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return "Can't expand the url."
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end
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end
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return {
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description = "Expand a shortened URL to the original one.",
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usage = "!expand [url]: Return the original URL",
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patterns = {
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"^!expand (https?://[%w-_%.%?%.:/%+=&]+)$"
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},
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run = run
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}
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