forked from gitea/gitea
97 lines
2.4 KiB
Go
97 lines
2.4 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package asymkey
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import (
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"context"
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"fmt"
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"strings"
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"code.gitea.io/gitea/models/db"
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"code.gitea.io/gitea/models/perm"
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user_model "code.gitea.io/gitea/models/user"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/util"
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)
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// AddPrincipalKey adds new principal to database and authorized_principals file.
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func AddPrincipalKey(ctx context.Context, ownerID int64, content string, authSourceID int64) (*PublicKey, error) {
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dbCtx, committer, err := db.TxContext(ctx)
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if err != nil {
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return nil, err
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}
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defer committer.Close()
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// Principals cannot be duplicated.
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has, err := db.GetEngine(dbCtx).
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Where("content = ? AND type = ?", content, KeyTypePrincipal).
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Get(new(PublicKey))
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if err != nil {
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return nil, err
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} else if has {
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return nil, ErrKeyAlreadyExist{0, "", content}
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}
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key := &PublicKey{
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OwnerID: ownerID,
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Name: content,
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Content: content,
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Mode: perm.AccessModeWrite,
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Type: KeyTypePrincipal,
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LoginSourceID: authSourceID,
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}
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if err = db.Insert(dbCtx, key); err != nil {
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return nil, fmt.Errorf("addKey: %w", err)
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}
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if err = committer.Commit(); err != nil {
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return nil, err
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}
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committer.Close()
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return key, RewriteAllPrincipalKeys(ctx)
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}
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// CheckPrincipalKeyString strips spaces and returns an error if the given principal contains newlines
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func CheckPrincipalKeyString(ctx context.Context, user *user_model.User, content string) (_ string, err error) {
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if setting.SSH.Disabled {
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return "", db.ErrSSHDisabled{}
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}
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content = strings.TrimSpace(content)
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if strings.ContainsAny(content, "\r\n") {
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return "", util.NewInvalidArgumentErrorf("only a single line with a single principal please")
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}
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// check all the allowed principals, email, username or anything
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// if any matches, return ok
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for _, v := range setting.SSH.AuthorizedPrincipalsAllow {
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switch v {
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case "anything":
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return content, nil
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case "email":
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emails, err := user_model.GetEmailAddresses(ctx, user.ID)
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if err != nil {
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return "", err
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}
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for _, email := range emails {
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if !email.IsActivated {
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continue
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}
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if content == email.Email {
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return content, nil
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}
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}
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case "username":
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if content == user.Name {
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return content, nil
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}
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}
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}
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return "", fmt.Errorf("didn't match allowed principals: %s", setting.SSH.AuthorizedPrincipalsAllow)
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}
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