mirror of
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49 lines
1.1 KiB
Go
49 lines
1.1 KiB
Go
// This file is Free Software under the MIT License
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// without warranty, see README.md and LICENSES/MIT.txt for details.
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//
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// SPDX-License-Identifier: MIT
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//
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// SPDX-FileCopyrightText: 2021 German Federal Office for Information Security (BSI) <https://www.bsi.bund.de>
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// Software-Engineering: 2021 Intevation GmbH <https://intevation.de>
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package main
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import (
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"bufio"
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"encoding/hex"
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"io"
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"net/url"
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"regexp"
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"strings"
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)
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var hexRe = regexp.MustCompile(`^([[:xdigit:]]+)`)
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func hashFromReader(r io.Reader) ([]byte, error) {
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scanner := bufio.NewScanner(r)
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for scanner.Scan() {
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if m := hexRe.FindStringSubmatch(scanner.Text()); m != nil {
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return hex.DecodeString(m[1])
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}
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}
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return nil, scanner.Err()
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}
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func basePath(p string) (string, error) {
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u, err := url.Parse(p)
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if err != nil {
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return "", err
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}
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ep := u.EscapedPath()
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if idx := strings.LastIndexByte(ep, '/'); idx != -1 {
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ep = ep[:idx+1]
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}
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user := u.User.String()
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if user != "" {
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user += "@"
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}
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if !strings.HasPrefix(ep, "/") {
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ep = "/" + ep
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}
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return u.Scheme + "://" + user + u.Host + ep, nil
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}
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