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add request signature support to Proxy

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Will Norris 2015-05-11 19:36:42 -07:00
parent 9d6f8fdf7d
commit a9efefc8e7
4 changed files with 105 additions and 23 deletions
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21
data.go
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@ -24,12 +24,13 @@ import (
)
const (
optFit = "fit"
optFlipVertical = "fv"
optFlipHorizontal = "fh"
optRotatePrefix = "r"
optQualityPrefix = "q"
optSizeDelimiter = "x"
optFit = "fit"
optFlipVertical = "fv"
optFlipHorizontal = "fh"
optRotatePrefix = "r"
optQualityPrefix = "q"
optSignaturePrefix = "s"
optSizeDelimiter = "x"
)
// URLError reports a malformed URL error.
@ -61,6 +62,9 @@ type Options struct {
// Quality of output image
Quality int
// HMAC Signature for signed requests.
Signature string
}
var emptyOptions = Options{}
@ -83,6 +87,9 @@ func (o Options) String() string {
if o.Quality != 0 {
fmt.Fprintf(buf, ",%s%d", string(optQualityPrefix), o.Quality)
}
if o.Signature != "" {
fmt.Fprintf(buf, ",%s%s", string(optSignaturePrefix), o.Signature)
}
return buf.String()
}
@ -162,6 +169,8 @@ func ParseOptions(str string) Options {
case strings.HasPrefix(opt, optQualityPrefix):
value := strings.TrimPrefix(opt, optQualityPrefix)
options.Quality, _ = strconv.Atoi(value)
case strings.HasPrefix(opt, optSignaturePrefix):
options.Signature = strings.TrimPrefix(opt, optSignaturePrefix)
case strings.Contains(opt, optSizeDelimiter):
size := strings.SplitN(opt, optSizeDelimiter, 2)
if w := size[0]; w != "" {