github.com/crewjam/saml@v0.4.14/util.go (about)

     1  package saml
     2  
     3  import (
     4  	"crypto/rand"
     5  	"io"
     6  	"time"
     7  
     8  	dsig "github.com/russellhaering/goxmldsig"
     9  )
    10  
    11  // TimeNow is a function that returns the current time. The default
    12  // value is time.Now, but it can be replaced for testing.
    13  var TimeNow = func() time.Time { return time.Now().UTC() }
    14  
    15  // Clock is assigned to dsig validation and signing contexts if it is
    16  // not nil, otherwise the default clock is used.
    17  var Clock *dsig.Clock
    18  
    19  // RandReader is the io.Reader that produces cryptographically random
    20  // bytes when they are need by the library. The default value is
    21  // rand.Reader, but it can be replaced for testing.
    22  var RandReader = rand.Reader
    23  
    24  //nolint:unparam // This always receives 20, but we want the option to do more or less if needed.
    25  func randomBytes(n int) []byte {
    26  	rv := make([]byte, n)
    27  
    28  	if _, err := io.ReadFull(RandReader, rv); err != nil {
    29  		panic(err)
    30  	}
    31  	return rv
    32  }