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function sanitize( req, sanitizers, cb ){
// init an object to store clean
// (sanitized) input parameters
req.clean = {};
// source of input parameters
// (in this case from the GET querystring params)
var params = req.query || {};
for (var s in sanitizers) {
var sanity = sanitizers[s]( params, req.clean );
// errors
if( sanity.errors.length ){
return cb( sanity.errors[0] );
}
}
return cb( undefined, req.clean );
}
// export function
module.exports = sanitize;