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42 lines
1.2 KiB
Go
42 lines
1.2 KiB
Go
package js
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import (
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"crypto/sha1"
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"crypto/sha256"
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"crypto/sha512"
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"encoding/hex"
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"fmt"
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"github.com/robertkrimen/otto"
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)
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// Exposes sha1, sha256, and sha512 hashing functions to Javascript
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func hashFunc(call otto.FunctionCall) otto.Value {
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if len(call.ArgumentList) != 2 {
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throw(call.Otto, "require takes exactly two arguments")
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}
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algorithm := call.Argument(0).String() // The algorithm to use for hashing
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value := call.Argument(1).String() // The value to hash
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//lint:ignore SA4006 work around bug in staticcheck. This value is needed if the switch statement follows the default path.
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result := otto.Value{}
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fmt.Printf("%s\n", value)
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switch algorithm {
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case "SHA1", "sha1":
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tmp := sha1.New()
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tmp.Write([]byte(value))
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fmt.Printf("%s\n", hex.EncodeToString(tmp.Sum(nil)))
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result, _ = otto.ToValue(hex.EncodeToString(tmp.Sum(nil)))
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case "SHA256", "sha256":
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tmp := sha256.New()
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tmp.Write([]byte(value))
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result, _ = otto.ToValue(hex.EncodeToString(tmp.Sum(nil)))
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case "SHA512", "sha512":
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tmp := sha512.New()
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tmp.Write([]byte(value))
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result, _ = otto.ToValue(hex.EncodeToString(tmp.Sum(nil)))
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default:
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throw(call.Otto, fmt.Sprintf("invalid algorithm %s given", algorithm))
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}
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return result
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}
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