51 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			51 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright 2021 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package asymkey
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import (
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	"bytes"
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	"code.gitea.io/gitea/models/db"
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	"code.gitea.io/gitea/modules/log"
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	"github.com/42wim/sshsig"
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)
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// VerifySSHKey marks a SSH key as verified
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func VerifySSHKey(ownerID int64, fingerprint, token, signature string) (string, error) {
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	ctx, committer, err := db.TxContext()
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	if err != nil {
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		return "", err
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	}
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	defer committer.Close()
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	key := new(PublicKey)
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	has, err := db.GetEngine(ctx).Where("owner_id = ? AND fingerprint = ?", ownerID, fingerprint).Get(key)
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	if err != nil {
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		return "", err
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	} else if !has {
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		return "", ErrKeyNotExist{}
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	}
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	if err := sshsig.Verify(bytes.NewBuffer([]byte(token)), []byte(signature), []byte(key.Content), "gitea"); err != nil {
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		log.Error("Unable to validate token signature. Error: %v", err)
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		return "", ErrSSHInvalidTokenSignature{
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			Fingerprint: key.Fingerprint,
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		}
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	}
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	key.Verified = true
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	if _, err := db.GetEngine(ctx).ID(key.ID).Cols("verified").Update(key); err != nil {
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		return "", err
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	}
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	if err := committer.Commit(); err != nil {
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		return "", err
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	}
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	return key.Fingerprint, nil
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}
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