30 lines
928 B
Lua
30 lines
928 B
Lua
-- httpserver-basicauth.lua
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-- Part of nodemcu-httpserver, authenticates a user using http basic auth.
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-- Author: Sam Dieck
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basicAuth = {}
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function basicAuth.authenticate(header)
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conf = dofile("httpserver-conf.lc")
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-- Parse basic auth http header.
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-- Returns the username if header contains valid credentials,
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-- nil otherwise.
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local credentials_enc = header:match("Authorization: Basic ([A-Za-z0-9+/=]+)")
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if not credentials_enc then
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return nil
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end
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local credentials = dofile("b64.lc").decode(credentials_enc)
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local user, pwd = credentials:match("^(.*):(.*)$")
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if user ~= conf.auth.user or pwd ~= conf.auth.password then
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return nil
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end
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print("httpserver-basicauth: User " .. user .. " authenticated.")
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return user
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end
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function basicAuth.authErrorHeader()
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return "WWW-Authenticate: Basic realm=\"nodemcu-httpserver\""
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end
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return basicAuth
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