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22 lines
643 B
Lua
22 lines
643 B
Lua
function tempdir()
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local stream = assert(io.popen('mktemp --directory'))
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local output = stream:read('*all')
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stream:close()
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return string.gsub(output, "\n", "")
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end
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function preprocess(path_or_url)
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filename_from_url = string.match(path_or_url, '^https?://.*/(.*)$')
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if filename_from_url then
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local temp_directory = tempdir()
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local new_path = temp_directory .. "/" .. filename_from_url
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-- TODO: how to prevent shell injection bugs?
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os.execute("curl --silent '" .. path_or_url .. "' --output '" .. new_path .. "'")
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return new_path
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else
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return path_or_url
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end
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end
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