Add UploadedImagesDir config setting

README.md

@@ -66,6 +66,7 @@ defaultuser: # on database creation, gotify creates an admin user
   name: admin # the username of the default user
   pass: admin # the password of the default user
 passstrength: 10 # the bcrypt password strength (higher = better but also slower)
+uploadedimagesdir: images # the directory for storing uploaded images
 ```
 
 ### Environment
@@ -86,6 +87,7 @@ GOTIFY_DATABASE_CONNECTION=gotify.db
 GOTIFY_DEFAULTUSER_NAME=admin
 GOTIFY_DEFAULTUSER_PASS=admin
 GOTIFY_PASSSTRENGTH=10
+GOTIFY_UPLOADEDIMAGESDIR=images
 ```
 
 ### Database

config/config.go

@@ -1,6 +1,11 @@
 package config
 
-import "github.com/jinzhu/configor"
+import (
+	"path/filepath"
+	"strings"
+
+	"github.com/jinzhu/configor"
+)
 
 // Configuration is stuff that can be configured externally per env variables or config file (config.yml).
 type Configuration struct {
@@ -29,11 +34,19 @@ type Configuration struct {
 		Pass string `default:"admin"`
 	}
 	PassStrength      int    `default:"10"`
+	UploadedImagesDir string `default:"images"`
 }
 
 // Get returns the configuration extracted from env variables or config file.
 func Get() *Configuration {
 	conf := new(Configuration)
 	configor.New(&configor.Config{ENVPrefix: "GOTIFY"}).Load(conf, "config.yml", "/etc/gotify/config.yml")
+	addTrailingSlashToPaths(conf)
 	return conf
 }
+
+func addTrailingSlashToPaths(conf *Configuration) {
+	if !strings.HasSuffix(conf.UploadedImagesDir, "/") && !strings.HasSuffix(conf.UploadedImagesDir, "\\") {
+		conf.UploadedImagesDir = conf.UploadedImagesDir + string(filepath.Separator)
+	}
+}

config/config_test.go

@@ -4,6 +4,8 @@ import (
 	"os"
 	"testing"
 
+	"path/filepath"
+
 	"github.com/stretchr/testify/assert"
 )
 
@@ -18,6 +20,20 @@ func TestConfigEnv(t *testing.T) {
 	os.Unsetenv("GOTIFY_SERVER_SSL_LETSENCRYPT_HOSTS")
 }
 
+func TestAddSlash(t *testing.T) {
+	os.Setenv("GOTIFY_UPLOADEDIMAGESDIR", "../data/images")
+	conf := Get()
+	assert.Equal(t, "../data/images"+string(filepath.Separator), conf.UploadedImagesDir)
+	os.Unsetenv("GOTIFY_UPLOADEDIMAGESDIR")
+}
+
+func TestNotAddSlash(t *testing.T) {
+	os.Setenv("GOTIFY_UPLOADEDIMAGESDIR", "../data/")
+	conf := Get()
+	assert.Equal(t, "../data/", conf.UploadedImagesDir)
+	os.Unsetenv("GOTIFY_UPLOADEDIMAGESDIR")
+}
+
 func TestConfigFile(t *testing.T) {
 	file, err := os.Create("config.yml")
 	defer func() {