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13614
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aaronmk
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<?php
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13694
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aaronmk
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function login__from_env()
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{
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return $_SERVER["PHP_AUTH_USER"]
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.($_SERVER["PHP_AUTH_PW"] !== "" ? ":".$_SERVER["PHP_AUTH_PW"] : "");
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}
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13614
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aaronmk
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function user2path($user) # multiple @ and nested . OK: a@b.c@url -> url?b.c.a
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{ return implode(".", array_reverse(explode("@", $user))); }
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if (!isset($_SERVER["PHP_AUTH_USER"])) # browser first omits Authorization
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{
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header('WWW-Authenticate: Basic realm="please leave username/password blank or as filled in"');
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}
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else
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{
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13668
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aaronmk
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$dest = preg_replace('!\b/!', "./", $_SERVER["SCRIPT_URI"])."?";
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# append trailing . to host to prevent infinite redirect loop
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13665
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aaronmk
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if ($_SERVER["PHP_AUTH_USER"] !== "") # prepend to query string
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13694
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aaronmk
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$dest .= "."/*force dotpath*/.user2path(login__from_env());
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13665
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aaronmk
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$dest .= $_SERVER["QUERY_STRING"];
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13625
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aaronmk
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header("Location: ".$dest);
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13614
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aaronmk
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}
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?>
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