1 files changed, 58 insertions, 0 deletions
diff --git a/modules/git/repo_gpg.go b/modules/git/repo_gpg.go
new file mode 100644
index 00000000..e2b45064
--- /dev/null
+++ b/modules/git/repo_gpg.go
@@ -0,0 +1,58 @@
+// Copyright 2015 The Gogs Authors. All rights reserved.
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/modules/process"
+)
+
+// LoadPublicKeyContent will load the key from gpg
+func (gpgSettings *GPGSettings) LoadPublicKeyContent() error {
+	content, stderr, err := process.GetManager().Exec(
+		"gpg -a --export",
+		"gpg", "-a", "--export", gpgSettings.KeyID)
+	if err != nil {
+		return fmt.Errorf("unable to get default signing key: %s, %s, %w", gpgSettings.KeyID, stderr, err)
+	}
+	gpgSettings.PublicKeyContent = content
+	return nil
+}
+
+// GetDefaultPublicGPGKey will return and cache the default public GPG settings for this repository
+func (repo *Repository) GetDefaultPublicGPGKey(forceUpdate bool) (*GPGSettings, error) {
+	if repo.gpgSettings != nil && !forceUpdate {
+		return repo.gpgSettings, nil
+	}
+
+	gpgSettings := &GPGSettings{
+		Sign: true,
+	}
+
+	value, _, _ := NewCommand(repo.Ctx, "config", "--get", "commit.gpgsign").RunStdString(&RunOpts{Dir: repo.Path})
+	sign, valid := ParseBool(strings.TrimSpace(value))
+	if !sign || !valid {
+		gpgSettings.Sign = false
+		repo.gpgSettings = gpgSettings
+		return gpgSettings, nil
+	}
+
+	signingKey, _, _ := NewCommand(repo.Ctx, "config", "--get", "user.signingkey").RunStdString(&RunOpts{Dir: repo.Path})
+	gpgSettings.KeyID = strings.TrimSpace(signingKey)
+
+	defaultEmail, _, _ := NewCommand(repo.Ctx, "config", "--get", "user.email").RunStdString(&RunOpts{Dir: repo.Path})
+	gpgSettings.Email = strings.TrimSpace(defaultEmail)
+
+	defaultName, _, _ := NewCommand(repo.Ctx, "config", "--get", "user.name").RunStdString(&RunOpts{Dir: repo.Path})
+	gpgSettings.Name = strings.TrimSpace(defaultName)
+
+	if err := gpgSettings.LoadPublicKeyContent(); err != nil {
+		return nil, err
+	}
+	repo.gpgSettings = gpgSettings
+	return repo.gpgSettings, nil
+}