refactor and reorganize

server/lib/config.ts

@@ -0,0 +1,206 @@
+import fs from "fs";
+import yaml from "js-yaml";
+import path from "path";
+import { z } from "zod";
+import { fromError } from "zod-validation-error";
+import { __DIRNAME, APP_PATH } from "@server/lib/consts";
+import { loadAppVersion } from "@server/lib/loadAppVersion";
+
+const portSchema = z.number().positive().gt(0).lte(65535);
+
+const environmentSchema = z.object({
+    app: z.object({
+        base_url: z
+            .string()
+            .url()
+            .transform((url) => url.toLowerCase()),
+        log_level: z.enum(["debug", "info", "warn", "error"]),
+        save_logs: z.boolean()
+    }),
+    server: z.object({
+        external_port: portSchema,
+        internal_port: portSchema,
+        next_port: portSchema,
+        internal_hostname: z.string().transform((url) => url.toLowerCase()),
+        secure_cookies: z.boolean(),
+        session_cookie_name: z.string(),
+        resource_session_cookie_name: z.string()
+    }),
+    traefik: z.object({
+        http_entrypoint: z.string(),
+        https_entrypoint: z.string().optional(),
+        cert_resolver: z.string().optional(),
+        prefer_wildcard_cert: z.boolean().optional()
+    }),
+    gerbil: z.object({
+        start_port: portSchema,
+        base_endpoint: z.string().transform((url) => url.toLowerCase()),
+        use_subdomain: z.boolean(),
+        subnet_group: z.string(),
+        block_size: z.number().positive().gt(0)
+    }),
+    rate_limits: z.object({
+        global: z.object({
+            window_minutes: z.number().positive().gt(0),
+            max_requests: z.number().positive().gt(0)
+        }),
+        auth: z
+            .object({
+                window_minutes: z.number().positive().gt(0),
+                max_requests: z.number().positive().gt(0)
+            })
+            .optional()
+    }),
+    email: z
+        .object({
+            smtp_host: z.string().optional(),
+            smtp_port: portSchema.optional(),
+            smtp_user: z.string().optional(),
+            smtp_pass: z.string().optional(),
+            no_reply: z.string().email().optional()
+        })
+        .optional(),
+    users: z.object({
+        server_admin: z.object({
+            email: z.string().email(),
+            password: z.string()
+        })
+    }),
+    flags: z
+        .object({
+            require_email_verification: z.boolean().optional(),
+            disable_signup_without_invite: z.boolean().optional(),
+            disable_user_create_org: z.boolean().optional()
+        })
+        .optional()
+});
+
+export class Config {
+    private rawConfig!: z.infer<typeof environmentSchema>;
+
+    constructor() {
+        this.loadConfig();
+    }
+
+    public loadConfig() {
+        const loadConfig = (configPath: string) => {
+            try {
+                const yamlContent = fs.readFileSync(configPath, "utf8");
+                const config = yaml.load(yamlContent);
+                return config;
+            } catch (error) {
+                if (error instanceof Error) {
+                    throw new Error(
+                        `Error loading configuration file: ${error.message}`
+                    );
+                }
+                throw error;
+            }
+        };
+
+        const configFilePath1 = path.join(APP_PATH, "config.yml");
+        const configFilePath2 = path.join(APP_PATH, "config.yaml");
+
+        let environment: any;
+        if (fs.existsSync(configFilePath1)) {
+            environment = loadConfig(configFilePath1);
+        } else if (fs.existsSync(configFilePath2)) {
+            environment = loadConfig(configFilePath2);
+        }
+        if (!environment) {
+            const exampleConfigPath = path.join(
+                __DIRNAME,
+                "config.example.yml"
+            );
+            if (fs.existsSync(exampleConfigPath)) {
+                try {
+                    const exampleConfigContent = fs.readFileSync(
+                        exampleConfigPath,
+                        "utf8"
+                    );
+                    fs.writeFileSync(
+                        configFilePath1,
+                        exampleConfigContent,
+                        "utf8"
+                    );
+                    environment = loadConfig(configFilePath1);
+                } catch (error) {
+                    if (error instanceof Error) {
+                        throw new Error(
+                            `Error creating configuration file from example: ${
+                                error.message
+                            }`
+                        );
+                    }
+                    throw error;
+                }
+            } else {
+                throw new Error(
+                    "No configuration file found and no example configuration available"
+                );
+            }
+        }
+
+        if (!environment) {
+            throw new Error("No configuration file found");
+        }
+
+        const parsedConfig = environmentSchema.safeParse(environment);
+
+        if (!parsedConfig.success) {
+            const errors = fromError(parsedConfig.error);
+            throw new Error(`Invalid configuration file: ${errors}`);
+        }
+
+        const appVersion = loadAppVersion();
+        if (!appVersion) {
+            throw new Error("Could not load the application version");
+        }
+        process.env.APP_VERSION = appVersion;
+
+        process.env.NEXT_PORT = parsedConfig.data.server.next_port.toString();
+        process.env.SERVER_EXTERNAL_PORT =
+            parsedConfig.data.server.external_port.toString();
+        process.env.SERVER_INTERNAL_PORT =
+            parsedConfig.data.server.internal_port.toString();
+        process.env.FLAGS_EMAIL_VERIFICATION_REQUIRED = parsedConfig.data.flags
+            ?.require_email_verification
+            ? "true"
+            : "false";
+        process.env.SESSION_COOKIE_NAME =
+            parsedConfig.data.server.session_cookie_name;
+        process.env.RESOURCE_SESSION_COOKIE_NAME =
+            parsedConfig.data.server.resource_session_cookie_name;
+        process.env.EMAIL_ENABLED = parsedConfig.data.email ? "true" : "false";
+        process.env.DISABLE_SIGNUP_WITHOUT_INVITE = parsedConfig.data.flags
+            ?.disable_signup_without_invite
+            ? "true"
+            : "false";
+        process.env.DISABLE_USER_CREATE_ORG = parsedConfig.data.flags
+            ?.disable_user_create_org
+            ? "true"
+            : "false";
+
+        this.rawConfig = parsedConfig.data;
+    }
+
+    public getRawConfig() {
+        return this.rawConfig;
+    }
+
+    public getBaseDomain(): string {
+        const newUrl = new URL(this.rawConfig.app.base_url);
+        const hostname = newUrl.hostname;
+        const parts = hostname.split(".");
+
+        if (parts.length <= 2) {
+            return parts.join(".");
+        }
+
+        return parts.slice(1).join(".");
+    }
+}
+
+export const config = new Config();
+
+export default config;