Refactor: simplify signV4TrimAll() (#3179)

master
Aditya Manthramurthy 8 years ago committed by Harshavardhana
parent 8408dfaa6c
commit eb1bc67db1
  1. 12
      cmd/signature-v4-utils.go
  2. 7
      cmd/signature-v4-utils_test.go

@ -161,15 +161,7 @@ func extractSignedHeaders(signedHeaders []string, reqHeaders http.Header) (http.
// Trim leading and trailing spaces and replace sequential spaces with one space, following Trimall()
// in http://docs.aws.amazon.com/general/latest/gr/sigv4-create-canonical-request.html
func signV4TrimAll(input string) string {
// Remove all whitespaces first
cleanWhiteSpaces := func(r rune) rune {
switch r {
case '\t', '\n', '\u000b', '\r', '\f':
return ' '
}
return r
}
input = strings.Map(cleanWhiteSpaces, input)
// Compress adjacent spaces to one space and return
// Compress adjacent spaces (a space is determined by
// unicode.IsSpace() internally here) to one space and return
return strings.Join(strings.Fields(input), " ")
}

@ -212,8 +212,8 @@ func TestFindHost(t *testing.T) {
}
}
// TestSigV4TrimAll - tests the logic of TrimAll() function
func TestSigV4TrimAll(t *testing.T) {
// TestSignV4TrimAll - tests the logic of TrimAll() function
func TestSignV4TrimAll(t *testing.T) {
testCases := []struct {
// Input.
inputStr string
@ -229,13 +229,14 @@ func TestSigV4TrimAll(t *testing.T) {
{" a b c ", "a b c"},
{"a \t b c ", "a b c"},
{"\"a \t b c ", "\"a b c"},
{" \t\n\u000b\r\fa \t\n\u000b\r\f b \t\n\u000b\r\f c \t\n\u000b\r\f", "a b c"},
}
// Tests generated values from url encoded name.
for i, testCase := range testCases {
result := signV4TrimAll(testCase.inputStr)
if testCase.result != result {
t.Errorf("Test %d: Expected sigV4TrimAll result to be \"%s\", but found it to be \"%s\" instead", i+1, testCase.result, result)
t.Errorf("Test %d: Expected signV4TrimAll result to be \"%s\", but found it to be \"%s\" instead", i+1, testCase.result, result)
}
}
}

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