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e81ccc406b
Change all license headers to comply with REUSE specification. Fix #16132 Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github> Co-authored-by: John Olheiser <john.olheiser@gmail.com>
100 lines
2.5 KiB
Go
100 lines
2.5 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Copyright 2019 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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//go:build !gogit
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package git
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import (
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"bytes"
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"fmt"
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"strconv"
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"strings"
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"time"
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)
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// Signature represents the Author or Committer information.
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type Signature struct {
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// Name represents a person name. It is an arbitrary string.
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Name string
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// Email is an email, but it cannot be assumed to be well-formed.
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Email string
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// When is the timestamp of the signature.
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When time.Time
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}
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func (s *Signature) String() string {
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return fmt.Sprintf("%s <%s>", s.Name, s.Email)
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}
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// Decode decodes a byte array representing a signature to signature
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func (s *Signature) Decode(b []byte) {
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sig, _ := newSignatureFromCommitline(b)
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s.Email = sig.Email
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s.Name = sig.Name
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s.When = sig.When
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}
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// Helper to get a signature from the commit line, which looks like these:
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//
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// author Patrick Gundlach <gundlach@speedata.de> 1378823654 +0200
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// author Patrick Gundlach <gundlach@speedata.de> Thu, 07 Apr 2005 22:13:13 +0200
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//
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// but without the "author " at the beginning (this method should)
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// be used for author and committer.
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func newSignatureFromCommitline(line []byte) (sig *Signature, err error) {
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sig = new(Signature)
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emailStart := bytes.LastIndexByte(line, '<')
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emailEnd := bytes.LastIndexByte(line, '>')
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if emailStart == -1 || emailEnd == -1 || emailEnd < emailStart {
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return
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}
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if emailStart > 0 { // Empty name has already occurred, even if it shouldn't
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sig.Name = strings.TrimSpace(string(line[:emailStart-1]))
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}
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sig.Email = string(line[emailStart+1 : emailEnd])
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hasTime := emailEnd+2 < len(line)
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if !hasTime {
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return
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}
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// Check date format.
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firstChar := line[emailEnd+2]
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if firstChar >= 48 && firstChar <= 57 {
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idx := bytes.IndexByte(line[emailEnd+2:], ' ')
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if idx < 0 {
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return
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}
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timestring := string(line[emailEnd+2 : emailEnd+2+idx])
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seconds, _ := strconv.ParseInt(timestring, 10, 64)
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sig.When = time.Unix(seconds, 0)
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idx += emailEnd + 3
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if idx >= len(line) || idx+5 > len(line) {
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return
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}
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timezone := string(line[idx : idx+5])
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tzhours, err1 := strconv.ParseInt(timezone[0:3], 10, 64)
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tzmins, err2 := strconv.ParseInt(timezone[3:], 10, 64)
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if err1 != nil || err2 != nil {
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return
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}
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if tzhours < 0 {
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tzmins *= -1
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}
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tz := time.FixedZone("", int(tzhours*60*60+tzmins*60))
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sig.When = sig.When.In(tz)
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} else {
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sig.When, err = time.Parse(GitTimeLayout, string(line[emailEnd+2:]))
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if err != nil {
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return
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}
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}
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return sig, err
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}
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