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13614
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aaronmk
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<?php
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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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13625
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aaronmk
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$dest = "";
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if ($_SERVER["PHP_AUTH_USER"] !== "")
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{
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$subpath = "."/*force dotpath*/.user2path($_SERVER["PHP_AUTH_USER"]);
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if ($_SERVER["QUERY_STRING"] !== "") # prepend to query string
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$dest = $_SERVER["SCRIPT_URL"]."?".$subpath
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.ltrim($_SERVER["QUERY_STRING"], "@");
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else $dest = $_SERVER["REQUEST_URI"]/*ends in ? */.$subpath;
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}
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else $dest = rtrim($_SERVER["REQUEST_URI"], "?"); # user empty->display page
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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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