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Refactor: simplify signV4TrimAll() (#3179)

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This commit is contained in:
Aditya Manthramurthy
2016-11-04 16:52:22 -04:00
committed by Harshavardhana
parent 8408dfaa6c
commit eb1bc67db1
2 changed files with 6 additions and 13 deletions
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12
cmd/signature-v4-utils.go
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@@ -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), " ")
}