55 lines
854 B
Go
55 lines
854 B
Go
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package main
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import (
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"crypto/sha256"
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"flag"
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"fmt"
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"io/ioutil"
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"net/http"
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"net/url"
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"path/filepath"
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"github.com/kisom/goutils/lib"
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)
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func fetch(remote string) ([]byte, error) {
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resp, err := http.Get(remote)
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return nil, err
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}
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return body, nil
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}
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func main() {
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flag.Parse()
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for _, remote := range flag.Args() {
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u, err := url.Parse(remote)
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if err != nil {
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lib.Warn(err, "parsing %s", remote)
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continue
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}
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name := filepath.Base(u.Path)
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if name == "" {
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lib.Warnx("source URL doesn't appear to name a file")
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continue
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}
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body, err := fetch(remote)
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if err != nil {
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lib.Warn(err, "fetching %s", remote)
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continue
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}
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h := sha256.Sum256(body)
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fmt.Printf("%s: sha256=%x\n", name, h)
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}
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}
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