28d1b9c01d
This is only dealing with the HTTP interface. Change-Id: I011b624fd9f11ea96231b92fea1166c118a219f2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9535 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: Connor Brewster <cbrewster@hey.com>
24 lines
700 B
Go
24 lines
700 B
Go
package http
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import (
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"fmt"
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nixhash "github.com/nix-community/go-nix/pkg/hash"
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)
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// parseNarHashFromUrl parses a nixbase32 string representing a sha256 NarHash
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// and returns a nixhash.Hash when it was able to parse, or an error.
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func parseNarHashFromUrl(narHashFromUrl string) (*nixhash.Hash, error) {
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// peek at the length. If it's 52 characters, assume sha256,
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// if it's something else, this is an error.
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l := len(narHashFromUrl)
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if l != 52 {
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return nil, fmt.Errorf("invalid length of narHash: %v", l)
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}
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nixHash, err := nixhash.ParseNixBase32("sha256:" + narHashFromUrl)
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if err != nil {
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return nil, fmt.Errorf("unable to parse nixbase32 hash: %w", err)
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}
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return nixHash, nil
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}
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