chore: directory migration - gateway→server, web→client/electron

server/internal/config/config.go

@@ -0,0 +1,94 @@
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+)
+
+type Config struct {
+	Port        string
+	DatabaseURL string
+	CORSOrigins []string
+
+	// 首次启动时创建的默认管理员
+	AdminUser     string
+	AdminPassword string
+
+	// Cookie 是否要求 HTTPS（生产环境置 true）
+	SecureCookie bool
+	CookieName   string
+
+	// 附件：文件内容存盘，默认与 SQLite 同目录下的 attachments/
+	AttachmentDir string
+	// 单个附件上限（字节）。默认 25MB，与常见邮箱附件限额一致
+	MaxAttachmentBytes int64
+}
+
+var C *Config
+
+func Load() *Config {
+	C = &Config{
+		Port: getEnv("PORT", "8180"),
+		// 空值 = 用内置 SQLite（data/agentmail.db，可用 AGENTMAIL_DATA_DIR 改目录）。
+		// 想接外部库就给 postgres://…；也接受 sqlite:///path/x.db 与裸路径。
+		DatabaseURL: getEnv("DATABASE_URL", ""),
+		CORSOrigins: splitEnv("CORS_ORIGINS", []string{
+			"http://localhost:5173",
+			"http://127.0.0.1:5173",
+		}),
+		AdminUser:     strings.ToLower(getEnv("ADMIN_USER", "admin")),
+		AdminPassword: getEnv("ADMIN_PASSWORD", ""),
+		SecureCookie:  getEnvBool("SECURE_COOKIE", false),
+		CookieName:    getEnv("COOKIE_NAME", "am_session"),
+
+		AttachmentDir: getEnv("AGENTMAIL_ATTACHMENT_DIR",
+			filepath.Join(getEnv("AGENTMAIL_DATA_DIR", "data"), "attachments")),
+		MaxAttachmentBytes: getEnvInt64("AGENTMAIL_MAX_ATTACHMENT_BYTES", 25<<20),
+	}
+	return C
+}
+
+func getEnv(key, fallback string) string {
+	if v := os.Getenv(key); v != "" {
+		return v
+	}
+	return fallback
+}
+
+func getEnvBool(key string, fallback bool) bool {
+	if v := os.Getenv(key); v != "" {
+		if b, err := strconv.ParseBool(v); err == nil {
+			return b
+		}
+	}
+	return fallback
+}
+
+func getEnvInt64(key string, fallback int64) int64 {
+	if v := os.Getenv(key); v != "" {
+		if n, err := strconv.ParseInt(v, 10, 64); err == nil && n > 0 {
+			return n
+		}
+	}
+	return fallback
+}
+
+func splitEnv(key string, fallback []string) []string {
+	v := os.Getenv(key)
+	if v == "" {
+		return fallback
+	}
+	parts := strings.Split(v, ",")
+	out := make([]string, 0, len(parts))
+	for _, p := range parts {
+		if s := strings.TrimSpace(p); s != "" {
+			out = append(out, s)
+		}
+	}
+	if len(out) == 0 {
+		return fallback
+	}
+	return out
+}