AuthorizedKeysCommand should not query db directly (#9371)

* AuthorizedKeysCommand should not query db directly

* Update routers/private/internal.go

* Fix import order

modules/private/key.go

@@ -6,6 +6,8 @@ package private
 
 import (
 	"fmt"
+	"io/ioutil"
+	"net/http"
 
 	"code.gitea.io/gitea/modules/setting"
 )
@@ -27,3 +29,26 @@ func UpdatePublicKeyInRepo(keyID, repoID int64) error {
 	}
 	return nil
 }
+
+// AuthorizedPublicKeyByContent searches content as prefix (leak e-mail part)
+// and returns public key found.
+func AuthorizedPublicKeyByContent(content string) (string, error) {
+	// Ask for running deliver hook and test pull request tasks.
+	reqURL := setting.LocalURL + fmt.Sprintf("api/internal/ssh/authorized_keys")
+	req := newInternalRequest(reqURL, "POST")
+	req.Param("content", content)
+	resp, err := req.Response()
+	if err != nil {
+		return "", err
+	}
+
+	defer resp.Body.Close()
+
+	// All 2XX status codes are accepted and others will return an error
+	if resp.StatusCode != http.StatusOK {
+		return "", fmt.Errorf("Failed to update public key: %s", decodeJSONError(resp).Err)
+	}
+	bs, err := ioutil.ReadAll(resp.Body)
+
+	return string(bs), err
+}