Updates much stuff for least stability

src/lib/file-manager.ts

@@ -4,7 +4,7 @@ import path from "path";
 export default class FileManager {
 
   static readDirectoryFiles(dir: string): string[] {
-    const files_ = [];
+    const files_: string[] = [];
     const files = fs.readdirSync(dir);
     for (const i in files) {
       const name = dir + '/' + files[i];

src/lib/safe-serve.ts

@@ -7,7 +7,7 @@ export default async function safeServe(res: NextApiResponse, fn: () => void): P
     } catch (e) {
       console.error('[SafeServe]: ', e)
       return res
-         .status(200)
+         .status(500)
          .json({ ok: false, details: 'Server Internal Error' })
     }
   })

src/lib/schemas/WireGuard.ts

@@ -0,0 +1,64 @@
+import { z } from "zod";
+import { IPV4_REGEX } from "@lib/constants";
+import { isBetween, isPrivateIP } from "@lib/utils";
+import { ZodErrorMap } from "zod/lib/ZodError";
+
+export const NameSchema = z
+   .string()
+   .nonempty()
+   .refine((v) => v.length < 32, {
+     message: 'Name must be less than 32 characters'
+   })
+   .refine((v) => v.match(/^[a-zA-Z0-9-_]+$/), {
+     message: 'Name must only contain alphanumeric characters, dashes, and underscores'
+   })
+
+export const AddressSchema = z
+   .string()
+   .nonempty()
+   .refine((v) => isPrivateIP(v), {
+     message: 'Address must be a private IP address'
+   })
+
+export const PortSchema = z
+   .string()
+   .nonempty()
+   .refine((v) => {
+     const port = parseInt(v)
+     return port > 0 && port < 65535
+   }, {
+     message: 'Port must be a valid port number'
+   })
+
+export const TypeSchema = z.enum([ 'default', 'tor' ])
+
+export const DnsSchema = z
+   .string()
+   .regex(IPV4_REGEX, {
+     message: 'DNS must be a valid IPv4 address'
+   })
+   .optional()
+
+export const MtuSchema = z
+   .string()
+   .refine((d) => isBetween(d, 1, 1500), {
+     message: 'MTU must be between 1 and 1500'
+   })
+   .optional()
+
+export const ServerId = z
+   .string()
+   .uuid({ message: 'Server ID must be a valid UUID' })
+
+export const ServerStatusSchema = z
+   .enum([ 'up', 'down' ], {
+     errorMap: issue => {
+       switch (issue.code) {
+         case 'invalid_type':
+         case 'invalid_enum_value':
+           return { message: 'Status must be either "up" or "down"' }
+         default:
+           return { message: 'Invalid status' }
+       }
+     }
+   })

src/lib/shell.ts

@@ -2,16 +2,23 @@ import childProcess from "child_process";
 
 export default class Shell {
 
-  public static async exec(command: string, ...args: string[]): Promise<string> {
+  public static async exec(command: string, safe: boolean = false, ...args: string[]): Promise<string> {
     if (process.platform !== 'linux') {
       throw new Error('This program is not meant to run on UNIX systems');
     }
-    return new Promise((resolve, reject) => {
+    return new Promise(async (resolve, reject) => {
       const cmd = `${command}${args.length > 0 ? ` ${args.join(' ')}` : ''}`;
-      childProcess.exec(cmd, { shell: 'bash', }, (err, stdout) => {
+      childProcess.exec(
-        if (err) return reject(err);
+         cmd,
-        return resolve(String(stdout).trim());
+         { shell: 'bash' },
-      });
+         (err, stdout, stderr) => {
+           if (err) {
+             console.error('Shell Exec:', err, stderr);
+             return safe ? resolve('') : reject(err);
+           }
+           return resolve(String(stdout).trim());
+         }
+      );
     });
   }
 

src/lib/utils.ts

@@ -26,3 +26,16 @@ export function isJson(str: string | object): boolean {
 export function isObject(obj: object) {
   return Object.prototype.toString.call(obj) === '[object Object]';
 }
+
+/**
+ * Private IP Address Identifier in Regular Expression
+ *
+ * 127.  0.0.0 – 127.255.255.255     127.0.0.0 /8
+ *  10.  0.0.0 –  10.255.255.255      10.0.0.0 /8
+ * 172. 16.0.0 – 172. 31.255.255    172.16.0.0 /12
+ * 192.168.0.0 – 192.168.255.255   192.168.0.0 /16
+ */
+export function isPrivateIP(ip: string) {
+  const ipRegex = /^(127\.)|(10\.)|(172\.1[6-9]\.)|(172\.2[0-9]\.)|(172\.3[0-1]\.)|(192\.168\.)/
+  return ipRegex.test(ip)
+}

src/lib/wireguard.ts

@@ -1,215 +1,74 @@
 import { promises as fs } from "fs";
 import path from "path";
-import QRCode from "qrcode";
 import { WG_PATH } from "@lib/constants";
 import Shell from "@lib/shell";
-import { WgKey, WgPeer, WgServer, WgServerConfig } from "@lib/typings";
+import { WgKey, WgPeer, WgServer } from "@lib/typings";
 import { client, WG_SEVER_PATH } from "@lib/redis";
 import { isJson } from "@lib/utils";
+import deepmerge from "deepmerge";
 
-export class WireGuardServer {
+export class WGServer {
 
-  serverId: number
+  static async stop(id: string): Promise<boolean> {
-
+    const server = await findServer(id)
-  constructor(serverId: number) {
+    if (!server) {
-    this.serverId = serverId
+      console.error('server could not be updated (reason: not exists)')
-  }
+      return false
-
-  async getConfig() {
-    if (!this.__configPromise) {
-      this.__configPromise = Promise.resolve().then(async () => {
-        if (!WG_HOST) {
-          throw new Error('WG_HOST Environment Variable Not Set!');
-        }
-
-        console.log('Loading configuration...')
-        let config;
-        try {
-          config = await fs.readFile(path.join(WG_PATH, 'wg0.json'), 'utf8');
-          config = JSON.parse(config);
-          console.log('Configuration loaded.')
-        } catch (err) {
-          // const privateKey = await Shell.exec('wg genkey');
-          // const publicKey = await Shell.exec(`echo ${privateKey} | wg pubkey`, {
-          //   log: 'echo ***hidden*** | wg pubkey',
-          // });
-          const { privateKey, publicKey } = await this.genKey()
-          const address = WG_DEFAULT_ADDRESS.replace('x', '1');
-
-          config = {
-            server: {
-              privateKey,
-              publicKey,
-              address,
-            },
-            clients: {},
-          };
-          console.log('Configuration generated.')
-        }
-
-        await this.__saveConfig(config);
-        await Shell.exec('wg-quick down wg0').catch(() => {
-        });
-        await Shell.exec('wg-quick up wg0').catch(err => {
-          if (err && err.message && err.message.includes('Cannot find device "wg0"')) {
-            throw new Error('WireGuard exited with the error: Cannot find device "wg0"\nThis usually means that your host\'s kernel does not support WireGuard!');
-          }
-
-          throw err;
-        });
-        // await Util.exec(`iptables -t nat -A POSTROUTING -s ${WG_DEFAULT_ADDRESS.replace('x', '0')}/24 -o eth0 -j MASQUERADE`);
-        // await Util.exec('iptables -A INPUT -p udp -m udp --dport 51820 -j ACCEPT');
-        // await Util.exec('iptables -A FORWARD -i wg0 -j ACCEPT');
-        // await Util.exec('iptables -A FORWARD -o wg0 -j ACCEPT');
-        await this.__syncConfig();
-
-        return config;
-      });
     }
-
+    await Shell.exec(`ip link set down dev wg${server.confId}`, true)
-    return this.__configPromise;
+    await this.update(id, { status: 'down' })
+    return true
   }
 
-  async saveConfig() {
+  static async start(id: string): Promise<boolean> {
-    const config = await this.getConfig();
+    const server = await findServer(id)
-    await this.__saveConfig(config);
+    if (!server) {
-    await this.__syncConfig();
+      console.error('server could not be updated (reason: not exists)')
-  }
+      return false
-
-  async __saveConfig(config: IServerConfig) {
-    let result = `
-[Interface]
-PrivateKey = ${config.privateKey}
-Address = ${config.address}/24
-ListenPort = ${config.listen}
-PreUp = ${config.preUp}
-PostUp = ${config.postUp}
-PreDown = ${config.preDown}
-PostDown = ${config.postDown}
-`;
-
-    for (const { id, ...client } of config.peers) {
-      if (!client.enabled) continue;
-
-      result += `
-
-# Client: ${client.name} (${id})
-[Peer]
-PublicKey = ${client.publicKey}
-PresharedKey = ${client.preSharedKey}
-AllowedIPs = ${client.address}/32`;
     }
-
+    await createInterface(server.confId, server.address)
-    await fs.writeFile(path.join(WG_PATH, `wg${this.serverId}.conf`), result, {
+    await Shell.exec(`ip link set up dev wg${server.confId}`)
-      mode: 0o600,
+    await this.update(id, { status: 'up' })
-    });
+    return true
   }
 
-  async getClients() {
+  static async remove(id: string): Promise<boolean> {
-    const config = await this.getConfig();
+    const server = await findServer(id)
-    const clients = Object.entries(config.clients).map(([ clientId, client ]) => ({
+    if (!server) {
-      id: clientId,
+      console.error('server could not be updated (reason: not exists)')
-      name: client.name,
+      return false
-      enabled: client.enabled,
+    }
-      address: client.address,
+    await this.stop(id)
-      publicKey: client.publicKey,
+    await dropInterface(server.confId)
-      createdAt: new Date(client.createdAt),
+    await fs.unlink(path.join(WG_PATH, `wg${server.confId}.conf`)).catch(() => null)
-      updatedAt: new Date(client.updatedAt),
+    const index = await findServerIndex(id)
-      allowedIPs: client.allowedIPs,
+    console.log('index', index)
-
+    if (typeof index !== 'number') {
-      persistentKeepalive: null,
+      console.warn('findServerIndex: index not found')
-      latestHandshakeAt: null,
+      return true
-      transferRx: null,
+    } else {
-      transferTx: null,
+      await client.lrem(WG_SEVER_PATH, 1, JSON.stringify(server))
-    }));
+    }
-
+    return true
-    // Loop WireGuard status
-    const dump = await Shell.exec(`wg show wg${this.serverId} dump`);
-    dump
-       .trim()
-       .split('\n')
-       .slice(1)
-       .forEach(line => {
-         const [
-           publicKey,
-           preSharedKey, // eslint-disable-line no-unused-vars
-           endpoint, // eslint-disable-line no-unused-vars
-           allowedIps, // eslint-disable-line no-unused-vars
-           latestHandshakeAt,
-           transferRx,
-           transferTx,
-           persistentKeepalive,
-         ] = line.split('\t');
-
-         const client = clients.find(client => client.publicKey === publicKey);
-         if (!client) return;
-
-         client.latestHandshakeAt = latestHandshakeAt === '0'
-            ? null
-            : new Date(Number(`${latestHandshakeAt}000`));
-         client.transferRx = Number(transferRx);
-         client.transferTx = Number(transferTx);
-         client.persistentKeepalive = persistentKeepalive;
-       });
-
-    return clients;
   }
 
-  async getClient(clientId: string): Promise<WgPeer> {
+  static async update(id: string, update: Partial<WgServer>): Promise<boolean> {
-    throw new Error('Yet not implanted!');
+    const server = await findServer(id)
-  }
+    if (!server) {
-
+      console.error('server could not be updated (reason: not exists)')
-  async getClientConfiguration(clientId: string): Promise<string> {
+      return false
-    const config = await this.getConfig();
+    }
-    const client = await this.getClient(clientId);
+    const index = await findServerIndex(id)
-
+    if (typeof index !== 'number') {
-    return `
+      console.warn('findServerIndex: index not found')
-[Interface]
+      return true
-PrivateKey = ${client.privateKey}
+    }
-Address = ${client.address}/24
+    const res = await client.lset(WG_SEVER_PATH, index, JSON.stringify(deepmerge(server, update)))
-${WG_DEFAULT_DNS ? `DNS = ${WG_DEFAULT_DNS}` : ''}
+    return res === 'OK'
-${WG_MTU ? `MTU = ${WG_MTU}` : ''}
-
-[Peer]
-PublicKey = ${config.server.publicKey}
-PresharedKey = ${client.preSharedKey}
-AllowedIPs = ${WG_ALLOWED_IPS}
-PersistentKeepalive = ${WG_PERSISTENT_KEEPALIVE}
-Endpoint = ${WG_HOST}:${WG_PORT}`;
-  }
-
-  async getClientQRCodeSVG(clientId: string) {
-    const config = await this.getClientConfiguration(clientId);
-    return QRCode.toString(config, { type: 'svg', width: 512 });
-  }
-
-  async createClient(name: string) {
-    throw new Error('Yet not implanted!');
-  }
-
-  async deleteClient(clientId: string) {
-    throw new Error('Yet not implanted!');
-  }
-
-  async enableClient(clientId: string) {
-    throw new Error('Yet not implanted!');
-  }
-
-  async disableClient(clientId: string) {
-    throw new Error('Yet not implanted!');
-  }
-
-  async updateClientName(clientId: string) {
-    throw new Error('Yet not implanted!');
-  }
-
-  async updateClientAddress(clientId: string, address: string) {
-    throw new Error('Yet not implanted!');
   }
 
 }
 
-
 /**
  * Used to read /etc/wireguard/*.conf and sync them with our
  * redis server.
@@ -218,10 +77,6 @@ async function syncServers(): Promise<boolean> {
   throw new Error('Yet not implanted!');
 }
 
-export interface IServerConfig extends WgServerConfig {
-  peers: WgPeer[]
-}
-
 export async function generateWgKey(): Promise<WgKey> {
   const privateKey = await Shell.exec('wg genkey');
   const publicKey = await Shell.exec(`echo ${privateKey} | wg pubkey`);
@@ -268,30 +123,81 @@ export async function generateWgServer(config: {
      .map((s) => [ s.address, s.listen ])
 
   // check for the conflict
-  if (addresses.includes(config.address)) {
+  if (Array.isArray(addresses) && addresses.includes(config.address)) {
     throw new Error(`Address ${config.address} is already reserved!`)
   }
 
-  if (ports.includes(config.port)) {
+  if (Array.isArray(addresses) && ports.includes(config.port)) {
     throw new Error(`Port ${config.port} is already reserved!`)
   }
 
   // save server config
   await client.lpush(WG_SEVER_PATH, JSON.stringify(server))
 
+  const CONFIG_PATH = path.join(WG_PATH, `wg${confId}.conf`)
+
   // save server config to disk
-  await fs.writeFile(path.join(WG_PATH, `wg${confId}.conf`), getServerConf(server), {
+  await fs.writeFile(CONFIG_PATH, getServerConf(server), {
     mode: 0o600,
   })
 
-  // restart wireguard
+  // to ensure interface does not exists
-  await Shell.exec(`wg-quick down wg${confId}`)
+  await dropInterface(confId)
-  await Shell.exec(`wg-quick up wg${confId}`)
+  await Shell.exec(`ip link set down dev wg${confId}`, true)
+
+
+  // create a interface
+  await createInterface(confId, config.address)
+
+  // restart WireGuard
+  await Shell.exec(`wg setconf wg${confId} ${CONFIG_PATH}`)
+  await Shell.exec(`ip link set up dev wg${confId}`)
 
   // return server id
   return uuid
 }
 
+/**
+ *   # ip link add dev wg0 type wireguard
+ *   # ip address add dev wg0 10.0.0.1/24
+ *
+ * @param configId
+ * @param address
+ */
+export async function createInterface(configId: number, address: string): Promise<boolean> {
+
+  // first checking for the interface is already exists
+  const interfaces = await Shell.exec(`ip link show | grep wg${configId}`, true)
+  if (interfaces.includes(`wg${configId}`)) {
+    console.error(`failed to create interface, wg${configId} already exists!`)
+    return false
+  }
+
+  // create interface
+  const o1 = await Shell.exec(`ip link add dev wg${configId} type wireguard`)
+  // check if it has error
+  if (o1 !== '') {
+    console.error(`failed to create interface, ${o1}`)
+    return false
+  }
+
+  const o2 = await Shell.exec(`ip address add dev wg${configId} ${address}/24`)
+  // check if it has error
+  if (o2 !== '') {
+    console.error(`failed to assign ip to interface, ${o2}`)
+    console.log(`removing interface wg${configId} due to errors`)
+    await Shell.exec(`ip link delete dev wg${configId}`, true)
+    return false
+  }
+
+  return true
+
+}
+
+export async function dropInterface(configId: number) {
+  await Shell.exec(`ip link delete dev wg${configId}`, true)
+}
+
 export function getServerConf(server: WgServer): string {
   return `
 # Autogenerated by WireGuard UI (WireAdmin) 
@@ -340,10 +246,22 @@ export async function getServers(): Promise<WgServer[]> {
   return (await client.lrange(WG_SEVER_PATH, 0, -1)).map((s) => JSON.parse(s))
 }
 
-export async function findServer(id: string | undefined, hash: string | undefined): Promise<WgServer | undefined> {
+export async function findServerIndex(id: string): Promise<number | undefined> {
+  let index = 0;
+  const servers = await getServers()
+  for (const s of servers) {
+    if (s.id === id) {
+      return index
+    }
+    index++
+  }
+  return undefined
+}
+
+export async function findServer(id: string | undefined, hash?: string): Promise<WgServer | undefined> {
   const servers = await getServers()
   return id ?
-     servers.find((s) => s.id === hash) :
+     servers.find((s) => s.id === id) :
      hash && isJson(hash) ? servers.find((s) => JSON.stringify(s) === hash) :
         undefined
 }

src/lib/zod.ts

@@ -0,0 +1,20 @@
+import { NextApiResponse } from "next";
+import { ZodError } from "zod";
+
+export function zodErrorToResponse(res: NextApiResponse, z: ZodError) {
+  return res
+     .status(400)
+     .json({
+       ok: false,
+       message: 'Bad Request',
+       details: zodErrorMessage(z)
+     })
+}
+
+export function zodEnumError(message: string) {
+  return { message }
+}
+
+export function zodErrorMessage(ze: ZodError): string[] {
+  return ze.errors.map((e) => e.message)
+}

src/package-lock.json

@@ -14,6 +14,7 @@
         "antd": "5.8.6",
         "clsx": "^2.0.0",
         "crypto-js": "^4.1.1",
+        "deepmerge": "^4.3.1",
         "dotenv": "16.3.1",
         "ioredis": "5.3.2",
         "next": "13.4.19",
@@ -1029,6 +1030,14 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/deepmerge": {
+      "version": "4.3.1",
+      "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.3.1.tgz",
+      "integrity": "sha512-3sUqbMEc77XqpdNO7FRyRog+eW3ph+GYCbj+rK+uYyRMuwsVy0rMiVtPn+QJlKFvWP/1PYpapqYn0Me2knFn+A==",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/denque": {
       "version": "2.1.0",
       "license": "Apache-2.0",

src/package.json

@@ -16,6 +16,7 @@
     "antd": "5.8.6",
     "clsx": "^2.0.0",
     "crypto-js": "^4.1.1",
+    "deepmerge": "^4.3.1",
     "dotenv": "16.3.1",
     "ioredis": "5.3.2",
     "next": "13.4.19",

src/pages/[serverId]/index.tsx

@@ -1,10 +1,16 @@
-import { Button, Card } from "antd";
+import { Button, Card, List } from "antd";
 import BasePage from "@ui/pages/BasePage";
 import PageRouter from "@ui/pages/PageRouter";
 import React from "react";
 import { PlusOutlined } from "@ant-design/icons";
 import useSWR from "swr";
 import { APIResponse } from "@lib/typings";
+import useSWRMutation from "swr/mutation";
+import { useRouter } from "next/router";
+import { MiddleEllipsis } from "@ui/MiddleEllipsis";
+import StatusBadge from "@ui/StatusBadge";
+import { SmartModalRef } from "@ui/Modal/SmartModal";
+import CreateClientModal from "@ui/Modal/CreateClientModal";
 
 
 export async function getServerSideProps(context: any) {
@@ -20,22 +26,66 @@ type PageProps = {
 }
 
 export default function ServerPage(props: PageProps) {
-  const { data, error, isLoading } = useSWR(`/api/wireguard/${props.serverId}`, async (url: string) => {
+
-    const resp = await fetch(url, {
+  const router = useRouter()
-      method: 'GET',
+
-      headers: {
+  const createClientRef = React.useRef<SmartModalRef | null>(null)
-        'Content-Type': 'application/json'
+
-      }
+  const { data, error, isLoading } = useSWR(
-    })
+     `/api/wireguard/${props.serverId}`,
-    const data = await resp.json() as APIResponse<any>
+     async (url: string) => {
-    if (!data.ok) throw new Error('Server responded with error status')
+       const resp = await fetch(url, {
-    return data.result
+         method: 'GET',
-  })
+         headers: {
+           'Content-Type': 'application/json'
+         }
+       })
+       if (resp.status === 404) {
+         router.replace('/').catch()
+         return false
+       }
+       const data = await resp.json() as APIResponse<any>
+       if (!data.ok) throw new Error('Server responded with error status')
+       return data.result
+     }
+  )
+
+  const { isMutating: isChangingStatus, trigger: changeStatus } = useSWRMutation(
+     `/api/wireguard/${props.serverId}`,
+     async (url: string, { arg }: { arg: string }) => {
+       const resp = await fetch(url, {
+         method: arg === 'remove' ? 'DELETE' : 'PUT',
+         headers: {
+           'Content-Type': 'application/json'
+         },
+         body: arg === 'remove' ? undefined : JSON.stringify({
+           status: arg
+         })
+       })
+       if (resp.status === 404) {
+         router.replace('/').catch()
+         return false
+       }
+       const data = await resp.json() as APIResponse<any>
+       if (!data.ok) throw new Error('Server responded with error status')
+       return true
+     },
+     {
+       onSuccess: () => {
+       },
+       onError: () => {
+       }
+     }
+  )
+
+  const lastChangeStatus = React.useRef<string | null>(null)
+
   return (
      <BasePage>
+       <CreateClientModal ref={createClientRef} />
        <PageRouter
           route={[
-            { title: 'SERVER_ID' }
+            { title: data ? data.name.toString() : 'LOADING...' }
           ]}
        />
        {error ? (
@@ -48,17 +98,59 @@ export default function ServerPage(props: PageProps) {
           </Card>
        ) : (
           <div className={'space-y-4'}>
-            <Card>
+            <Card className={'[&>.ant-card-body]:max-md:p1-2'}>
-              <div className={'flex items-center gap-x-2'}>
+              <List>
+                <Row label={'IP address'}>
+                  <pre> {data.address}/24 </pre>
+                </Row>
+                <Row label={'Status'}>
+                  <StatusBadge status={data.status} />
+                </Row>
+                <Row label={'Public Key'}>
+                  <MiddleEllipsis
+                     content={data.publicKey}
+                     maxLength={16}
+                  />
+                </Row>
+              </List>
+              <div className={'flex flex-wrap items-center gap-2 mt-6'}>
                 {data.status === 'up' ? (
                    <React.Fragment>
-                     <Button> Restart </Button>
+                     <Button
-                     <Button> Stop </Button>
+                        className={'max-md:col-span-12'}
+                        loading={isChangingStatus && lastChangeStatus.current === 'restart'}
+                        disabled={isChangingStatus}
+                        onClick={() => changeStatus('restart')}
+                     > Restart </Button>
+                     <Button
+                        danger={true}
+                        className={'max-md:col-span-12'}
+                        loading={isChangingStatus && lastChangeStatus.current === 'stop'}
+                        disabled={isChangingStatus}
+                        onClick={() => changeStatus('stop')}
+                     > Stop </Button>
                    </React.Fragment>
                 ) : (
                    <React.Fragment>
-                     <Button type={'primary'} className={'bg-green-500'}> Start </Button>
+                     <Button
-                     <Button danger={true}> Remove </Button>
+                        type={'primary'}
+                        className={'max-md:col-span-12 bg-green-500'}
+                        loading={isChangingStatus && lastChangeStatus.current === 'start'}
+                        disabled={isChangingStatus}
+                        onClick={() => changeStatus('start')}
+                     > Start </Button>
+                     <Button
+                        danger={true}
+                        className={'max-md:col-span-12'}
+                        loading={isChangingStatus && lastChangeStatus.current === 'remove'}
+                        disabled={isChangingStatus}
+                        onClick={() => {
+                          changeStatus('remove').finally(() => {
+                            lastChangeStatus.current = null
+                            router.replace('/').catch()
+                          })
+                        }}
+                     > Remove </Button>
                    </React.Fragment>
                 )}
               </div>
@@ -72,7 +164,7 @@ export default function ServerPage(props: PageProps) {
                 <p className={'text-gray-400 text-md'}>
                   There are no clients yet!
                 </p>
-                <Button type={'primary'} icon={<PlusOutlined />}>
+                <Button type={'primary'} icon={<PlusOutlined />} onClick={() => createClientRef.current?.open()}>
                   Add a client
                 </Button>
               </div>
@@ -82,3 +174,20 @@ export default function ServerPage(props: PageProps) {
      </BasePage>
   );
 }
+
+function Row(props: {
+  label: string
+  children: React.ReactNode
+}) {
+  return (
+     <List.Item className={'flex flex-wrap items-center gap-2 leading-none relative overflow-ellipsis'}>
+       <div className={'flex items-center text-gray-400 text-sm col-span-12 md:col-span-3'}>
+         {props.label}
+       </div>
+       <div className={'flex items-center gap-x-2 col-span-12 md:col-span-9'}>
+         {props.children}
+       </div>
+     </List.Item>
+  )
+}
+

src/pages/api/wireguard/[serverId]/index.ts

@@ -1,20 +1,39 @@
 import type { NextApiRequest, NextApiResponse } from "next";
 import safeServe from "@lib/safe-serve";
-import { findServer } from "@lib/wireguard";
+import { findServer, WGServer } from "@lib/wireguard";
+import { z } from "zod";
+import { NameSchema, ServerId } from "@lib/schemas/WireGuard";
+import { WgServer } from "@lib/typings";
+import { zodEnumError, zodErrorToResponse } from "@lib/zod";
 
 export default async function handler(req: NextApiRequest, res: NextApiResponse) {
   return safeServe(res, async () => {
 
+    const parsed = RequestSchema.safeParse(req.query)
+    if (!parsed.success) {
+      return zodErrorToResponse(res, parsed.error)
+    }
+
+    const { serverId } = req.query as z.infer<typeof RequestSchema>
+    const server = await findServer(serverId)
+    if (!server) {
+      return res
+         .status(404)
+         .json({ ok: false, message: 'Not Found' })
+    }
+
     if (req.method === 'GET') {
-      return get(req, res)
+      return res
+         .status(200)
+         .json({ ok: true, result: server })
     }
 
     if (req.method === 'PUT') {
-      return update(req, res)
+      return await update(server, req, res)
     }
 
     if (req.method === 'DELETE') {
-      return remove(req, res)
+      return await remove(server, req, res)
     }
 
     return res
@@ -24,24 +43,57 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
   })
 }
 
-async function get(req: NextApiRequest, res: NextApiResponse) {
+const RequestSchema = z.object({
+  serverId: ServerId
+})
 
-  const server = findServer()
 
-  return res
+async function update(server: WgServer, req: NextApiRequest, res: NextApiResponse) {
-     .status(500)
+  return safeServe(res, async () => {
-     .json({ ok: false, details: 'Not yet implemented!' })
+
+    const parsed = PutRequestSchema.safeParse(req.body)
+    if (!parsed.success) {
+      return zodErrorToResponse(res, parsed.error)
+    }
+
+    const { status } = req.body as z.infer<typeof PutRequestSchema>
+
+    switch (status) {
+      case 'start':
+        await WGServer.start(server.id)
+        break;
+      case 'stop':
+        await WGServer.stop(server.id)
+        break;
+      case 'restart':
+        await WGServer.stop(server.id)
+        await WGServer.start(server.id)
+        break;
+    }
+
+    return res
+       .status(200)
+       .json({ ok: true })
+
+  })
 }
 
-async function update(req: NextApiRequest, res: NextApiResponse) {
+const PutRequestSchema = z.object({
-  return res
+  name: NameSchema.optional(),
-     .status(500)
+  status: z
-     .json({ ok: false, details: 'Not yet implemented!' })
+     .enum(
-}
+        [ 'start', 'stop', 'restart' ],
-
+        { errorMap: () => zodEnumError('Invalid status') }
-async function remove(req: NextApiRequest, res: NextApiResponse) {
+     )
-  return res
+     .optional(),
-     .status(500)
+})
-     .json({ ok: false, details: 'Not yet implemented!' })
+
+async function remove(server: WgServer, req: NextApiRequest, res: NextApiResponse) {
+  return safeServe(res, async () => {
+    await WGServer.remove(server.id)
+    return res
+       .status(200)
+       .json({ ok: true })
+  })
 }
 

src/pages/api/wireguard/[serverId]/stop.ts

@@ -0,0 +1,42 @@
+import type { NextApiRequest, NextApiResponse } from 'next'
+import safeServe from "@lib/safe-serve";
+import { findServer, WGServer } from "@lib/wireguard";
+import { z } from "zod";
+import { ServerId } from "@lib/schemas/WireGuard";
+
+export default function handler(req: NextApiRequest, res: NextApiResponse) {
+  return safeServe(res, async () => {
+
+    if (req.method !== 'GET') {
+      return res
+         .status(400)
+         .json({ ok: false, details: 'Method not allowed' })
+    }
+
+    const { serverId } = req.query as z.infer<typeof RequestSchema>
+    const server = await findServer(serverId)
+
+    if (!server) {
+      return res
+         .status(404)
+         .json({ ok: false, message: 'Not Found' })
+    }
+
+    const updated = await WGServer.stop(serverId)
+    if (!updated) {
+      return res
+         .status(500)
+         .json({ ok: false, details: 'Server Internal Error' })
+    }
+
+    return res
+       .status(200)
+       .json({ ok: true })
+
+  })
+}
+
+const RequestSchema = z.object({
+  serverId: ServerId
+})
+

src/pages/api/wireguard/createServer.ts

@@ -1,9 +1,9 @@
 import type { NextApiRequest, NextApiResponse } from 'next'
 import safeServe from "@lib/safe-serve";
 import { z } from "zod";
-import { IPV4_REGEX } from "@/lib/constants";
+import { AddressSchema, DnsSchema, MtuSchema, NameSchema, PortSchema, TypeSchema } from "@lib/schemas/WireGuard";
-import { client, WG_SEVER_PATH } from "@/lib/redis";
+import { generateWgServer } from "@lib/wireguard";
-import { isBetween } from "@/lib/utils";
+import { zodErrorToResponse } from "@lib/zod";
 
 export default function handler(req: NextApiRequest, res: NextApiResponse) {
   return safeServe(res, async () => {
@@ -14,38 +14,34 @@ export default function handler(req: NextApiRequest, res: NextApiResponse) {
          .json({ ok: false, details: 'Method not allowed' })
     }
 
-    if (!RequestSchema.safeParse(req.body).success) {
+    const parsed = RequestSchema.safeParse(req.body)
-      return res
+    if (!parsed.success) {
-         .status(400)
+      return zodErrorToResponse(res, parsed.error)
-         .json({ ok: false, details: 'Bad Request' })
     }
 
-    const { name, address, listen, dns = null, mtu = 1420 } = req.body
+    const { name, address, type, port, dns = null, mtu = 1420 } = req.body
 
-    const serversCount = (await client.lrange(WG_SEVER_PATH, 0, -1)).length
+    const serverId = await generateWgServer({
-
-    const server = {
-      id: serversCount + 1,
       name,
       address,
-      listen,
+      port,
+      type,
       mtu,
       dns
-    }
+    })
-
-    await client.lpush(WG_SEVER_PATH, JSON.stringify(server))
 
     return res
        .status(200)
-       .json({ ok: true })
+       .json({ ok: true, result: serverId })
 
   })
 }
 
 const RequestSchema = z.object({
-  name: z.string().regex(/^[A-Za-z\d\s]{3,32}$/),
+  name: NameSchema,
-  address: z.string().regex(IPV4_REGEX),
+  address: AddressSchema,
-  listen: z.string().refine((d) => isBetween(d, 1, 65535)),
+  port: PortSchema,
-  dns: z.string().regex(IPV4_REGEX).optional(),
+  type: TypeSchema,
-  mtu: z.string().refine((d) => isBetween(d, 1, 1500)).optional()
+  dns: DnsSchema,
+  mtu: MtuSchema
 })

src/pages/api/wireguard/reset.ts

@@ -24,7 +24,7 @@ export default function handler(req: NextApiRequest, res: NextApiResponse) {
       const m = file.match(reg)
       if (m) {
         const confId = parseInt(m[1])
-        Shell.exec(`wg-quick down wg${confId}`).catch()
+        Shell.exec(`ip link set down dev wg${confId}`).catch()
         fs.unlinkSync(path.join(WG_PATH, file))
       }
     })

src/pages/index.tsx

@@ -1,5 +1,5 @@
 import React from "react";
-import { Badge, Button, Card, List, Segmented } from "antd";
+import { Badge, Button, Card, List } from "antd";
 import BasePage from "@ui/pages/BasePage";
 import { APIResponse, WgServer } from "@lib/typings";
 import { PlusOutlined } from "@ant-design/icons";
@@ -7,8 +7,10 @@ import Image, { ImageProps } from "next/image";
 import Link from "next/link";
 import PageRouter from "@ui/pages/PageRouter";
 import useSWR from "swr";
-import SmartModal, { SmartModalRef } from "@ui/SmartModal";
+import { SmartModalRef } from "@ui/Modal/SmartModal";
 import { twMerge } from "tailwind-merge";
+import CreateServerModal from "@ui/Modal/CreateServerModal";
+import StatusBadge from "@ui/StatusBadge";
 
 export default function Home() {
   const { data, error, isLoading } = useSWR('/api/wireguard/listServers', async (url: string) => {
@@ -33,22 +35,7 @@ export default function Home() {
             </Button>
          )}
        </PageRouter>
-       <SmartModal
+       <CreateServerModal ref={createServerRef} />
-          ref={createServerRef}
-          title={null}
-          footer={null}
-          rootClassName={'w-full max-w-[340px]'}
-       >
-         <div className={'flex items-center justify-center'}>
-           <Segmented
-              className={'select-none'}
-              options={[
-                { label: 'Direct', value: 'default', icon: <i className={'far fa-arrows-left-right-to-line'} /> },
-                { label: 'Tor', value: 'tor', icon: <TorOnion /> }
-              ]}
-           />
-         </div>
-       </SmartModal>
        <div className={'space-y-4'}>
          {error ? (
             <Card className={'flex items-center justify-center p-4'}>
@@ -89,13 +76,9 @@ function Server(s: WgServer) {
      <List.Item className={'flex items-center justify-between p-4'}>
        <div className={'w-full grid grid-cols-12 items-center gap-x-2'}>
          <ServerIcon type={s.type} className={'col-span-1'} />
-         <h3 className={'font-medium col-span-4'}> {s.name} </h3>
+         <span className={'font-medium col-span-4'}> {s.name} </span>
          <div className={'col-span-4 justify-end'}>
-           <Badge
+           <StatusBadge status={s.status} />
-              size={'small'}
-              color={s.status === 'up' ? 'rgb(82, 196, 26)' : 'rgb(255, 77, 79)'}
-              text={s.status === 'up' ? 'Running' : 'Stopped'}
-           />
          </div>
        </div>
        <Link href={`/${s.id}`}>

src/styles/globals.css

@@ -12,6 +12,40 @@
 
 }
 
+
+@layer base {
+
+  h1 {
+    @apply text-4xl font-bold;
+  }
+
+  h2 {
+    @apply text-3xl font-bold;
+  }
+
+  h3 {
+    @apply text-2xl font-semibold;
+  }
+
+  h4 {
+    @apply text-xl font-semibold;
+  }
+
+  h5 {
+    @apply text-lg font-medium;
+  }
+
+  h6 {
+    @apply text-base font-medium;
+  }
+
+  a {
+    text-decoration: none;
+    transition: color 0.2s ease-in-out;
+  }
+
+}
+
 @tailwind components;
 @tailwind utilities;
 

src/ui/MiddleEllipsis.tsx

@@ -0,0 +1,33 @@
+import React from "react";
+import { twMerge } from "tailwind-merge";
+import { ReactHTMLProps } from "@lib/typings";
+
+export interface MiddleEllipsisProps extends ReactHTMLProps<HTMLSpanElement> {
+  content: string
+  maxLength: number
+  rootClassName?: string
+}
+
+export function MiddleEllipsis(props: MiddleEllipsisProps) {
+
+  const { content, maxLength, className, rootClassName, ...rest } = props
+
+  const [ leftL, rightL ] = React.useMemo(() => {
+    const left = Math.floor(maxLength / 2)
+    const right = Math.ceil(maxLength / 2)
+    return [ left, right ]
+  }, [ maxLength ])
+
+  const [ left, right ] = React.useMemo(() => {
+    if (content.length <= maxLength) return [ content, '' ]
+    return [ content.slice(0, leftL), content.slice(content.length - rightL) ]
+  }, [ content, leftL, rightL ])
+
+  return (
+     <span {...rest} className={rootClassName}>
+       {left}
+       <span className={twMerge('text-gray-400', className)}> ... </span>
+       {right}
+     </span>
+  )
+}

src/ui/Modal/CreateClientModal.tsx

@@ -0,0 +1,123 @@
+import React from "react";
+import SmartModal, { SmartModalRef } from "@ui/Modal/SmartModal";
+import { Button, Form, Input, notification } from "antd";
+import { z } from "zod";
+import { APIResponse } from "@lib/typings";
+import useSWRMutation from "swr/mutation";
+import { AddressSchema, DnsSchema, MtuSchema, NameSchema, PortSchema, TypeSchema } from "@lib/schemas/WireGuard";
+import { zodErrorMessage } from "@lib/zod";
+
+export type CreateClientModalProps = {}
+
+const CreateClientModal = React.forwardRef<
+   SmartModalRef,
+   CreateClientModalProps
+>((props, ref) => {
+
+
+  const [ notificationApi, contextHolder ] = notification.useNotification()
+
+  const innerRef = React.useRef<SmartModalRef | null>(null)
+  const [ form ] = Form.useForm()
+
+  React.useImperativeHandle(ref, () => innerRef.current as SmartModalRef)
+
+  React.useEffect(() => {
+    form?.resetFields()
+  }, [])
+
+  const { isMutating, trigger } = useSWRMutation(
+     '/api/wireguard/createClient',
+     async (url: string, { arg }: { arg: FormValues }) => {
+       const resp = await fetch(url, {
+         method: 'POST',
+         headers: {
+           'Content-Type': 'application/json'
+         },
+         body: JSON.stringify(arg)
+       })
+       const data = await resp.json() as APIResponse<any>
+       if (!data.ok) throw new Error('Client responded with error status')
+       return data.result
+     },
+     {
+       onSuccess: () => {
+         notificationApi.success({
+           message: 'Success',
+           description: (
+              <div>
+                hi
+              </div>
+           )
+         })
+         innerRef.current?.close()
+         form?.resetFields()
+       },
+       onError: () => {
+         notificationApi.error({
+           message: 'Error',
+           description: 'Failed to create Client'
+         })
+       }
+     }
+  )
+
+  const onFinish = (values: Record<string, string | undefined>) => {
+    if (isMutating) return
+    const parsed = FormSchema.safeParse(values)
+    if (!parsed.success) {
+      console.error(zodErrorMessage(parsed.error))
+      return;
+    }
+    trigger(values as FormValues).catch()
+  }
+
+  return (
+     <SmartModal
+        ref={innerRef}
+        title={null}
+        footer={null}
+        rootClassName={'w-full max-w-[340px]'}
+     >
+       {contextHolder}
+       <h4 className={'mb-6'}> Create Client </h4>
+       <Form form={form} onFinish={onFinish}>
+
+         <Form.Item name={'name'} label={'Name'} rules={[
+           {
+             required: true,
+             message: 'Name is required'
+           },
+           {
+             validator: (_, value) => {
+               if (!value) return Promise.resolve()
+               const res = NameSchema.safeParse(value)
+               if (res.success) return Promise.resolve()
+               return Promise.reject(zodErrorMessage(res.error)[0])
+             }
+           }
+         ]}>
+           <Input placeholder={'Unicorn 🦄'} />
+         </Form.Item>
+
+         <Button type={'primary'} htmlType={'submit'} className={'w-full'}>
+           Create
+         </Button>
+
+       </Form>
+     </SmartModal>
+  )
+})
+
+export default CreateClientModal
+
+const FormSchema = z.object({
+  name: NameSchema,
+  address: AddressSchema,
+  port: PortSchema,
+  type: TypeSchema,
+  dns: DnsSchema,
+  mtu: MtuSchema
+})
+
+type FormValues = z.infer<typeof FormSchema>

src/ui/Modal/CreateServerModal.tsx

@@ -0,0 +1,201 @@
+import React from "react";
+import SmartModal, { SmartModalRef } from "@ui/Modal/SmartModal";
+import { Button, Form, Input, notification, Segmented } from "antd";
+import { TorOnion } from "@/pages";
+import { z } from "zod";
+import { APIResponse } from "@lib/typings";
+import useSWRMutation from "swr/mutation";
+import { isPrivateIP } from "@lib/utils";
+import { AddressSchema, DnsSchema, MtuSchema, NameSchema, PortSchema, TypeSchema } from "@lib/schemas/WireGuard";
+import { zodErrorMessage } from "@lib/zod";
+
+export type CreateServerModalProps = {}
+
+const CreateServerModal = React.forwardRef<
+   SmartModalRef,
+   CreateServerModalProps
+>((props, ref) => {
+
+
+  const [ notificationApi, contextHolder ] = notification.useNotification()
+
+  const innerRef = React.useRef<SmartModalRef | null>(null)
+  const [ form ] = Form.useForm()
+
+  const [ type, setType ] = React.useState<'default' | 'tor'>('default')
+
+  React.useImperativeHandle(ref, () => innerRef.current as SmartModalRef)
+
+  React.useEffect(() => {
+    form?.resetFields()
+  }, [])
+
+  const { isMutating, trigger } = useSWRMutation(
+     '/api/wireguard/createServer',
+     async (url: string, { arg }: { arg: FormValues }) => {
+       const resp = await fetch(url, {
+         method: 'POST',
+         headers: {
+           'Content-Type': 'application/json'
+         },
+         body: JSON.stringify(arg)
+       })
+       const data = await resp.json() as APIResponse<any>
+       if (!data.ok) throw new Error('Server responded with error status')
+       return data.result
+     },
+     {
+       onSuccess: () => {
+         notificationApi.success({
+           message: 'Success',
+           description: (
+              <div>
+                hi
+              </div>
+           )
+         })
+         innerRef.current?.close()
+         form?.resetFields()
+       },
+       onError: () => {
+         notificationApi.error({
+           message: 'Error',
+           description: 'Failed to create server'
+         })
+       }
+     }
+  )
+
+  const onFinish = (values: Record<string, string | undefined>) => {
+    if (isMutating) return
+    const data = { ...values, type }
+    const parsed = FormSchema.safeParse(data)
+    if (!parsed.success) {
+      console.error(zodErrorMessage(parsed.error))
+      return;
+    }
+    trigger(data as FormValues)
+  }
+
+  return (
+     <SmartModal
+        ref={innerRef}
+        title={null}
+        footer={null}
+        rootClassName={'w-full max-w-[340px]'}
+     >
+       {contextHolder}
+       <h4 className={'mb-6'}> Create Server </h4>
+       <Form form={form} onFinish={onFinish}>
+
+         <Form.Item name={'name'} label={'Name'} rules={[
+           {
+             required: true,
+             message: 'Name is required'
+           },
+           {
+             validator: (_, value) => {
+               if (!value) return Promise.resolve()
+               const res = NameSchema.safeParse(value)
+               if (res.success) return Promise.resolve()
+               return Promise.reject(zodErrorMessage(res.error)[0])
+             }
+           }
+         ]}>
+           <Input placeholder={'Kitty World'} />
+         </Form.Item>
+
+         <Form.Item name={'address'} label={'Address'} rules={[
+           {
+             required: true,
+             message: 'Address is required'
+           },
+           {
+             validator: (_, value) => {
+               if (value && !isPrivateIP(value)) {
+                 return Promise.reject('Address must be a private IP address')
+               }
+               return Promise.resolve()
+             }
+           }
+         ]}>
+           <Input placeholder={'10.0.0.1'} />
+         </Form.Item>
+
+         <Form.Item name={'port'} label={'Port'} rules={[
+           {
+             required: true,
+             message: 'Port is required'
+           },
+           {
+             validator: (_, value) => {
+               const port = parseInt(value || '')
+               if (port > 0 && port < 65535) {
+                 return Promise.resolve()
+               }
+               return Promise.reject('Port must be a valid port number')
+             }
+           }
+         ]}>
+           <Input placeholder={'51820'} />
+         </Form.Item>
+
+         <Form.Item label={'Server Mode'}>
+           <Segmented
+              className={'select-none'}
+              defaultValue={type}
+              onChange={(v) => setType(v as any)}
+              options={[
+                { label: 'Direct', value: 'default', icon: <i className={'fal fa-arrows-left-right-to-line'} /> },
+                { label: 'Tor', value: 'tor', icon: <TorOnion />, disabled: true }
+              ]}
+           />
+         </Form.Item>
+
+         <Form.Item name={'dns'} label={'DNS'} rules={[
+           {
+             validator: (_, value) => {
+               if (!value) return Promise.resolve()
+               const res = NameSchema.safeParse(value)
+               if (res.success) return Promise.resolve()
+               return Promise.reject(zodErrorMessage(res.error)[0])
+             }
+           }
+         ]}>
+           <Input placeholder={'dns.google'} />
+         </Form.Item>
+
+         <Form.Item name={'mtu'} label={'MTU'} rules={[
+           {
+             validator: (_, value) => {
+               if (!value) return Promise.resolve()
+               const res = NameSchema.safeParse(value)
+               if (res.success) return Promise.resolve()
+               return Promise.reject(zodErrorMessage(res.error)[0])
+             }
+           }
+         ]}>
+           <Input placeholder={'1420'} />
+         </Form.Item>
+
+         <Button type={'primary'} htmlType={'submit'} className={'w-full'}>
+           Create
+         </Button>
+
+       </Form>
+     </SmartModal>
+  )
+})
+
+export default CreateServerModal
+
+const FormSchema = z.object({
+  name: NameSchema,
+  address: AddressSchema,
+  port: PortSchema,
+  type: TypeSchema,
+  dns: DnsSchema,
+  mtu: MtuSchema
+})
+
+type FormValues = z.infer<typeof FormSchema>

src/ui/StatusBadge.tsx

@@ -0,0 +1,19 @@
+import { Badge } from "antd";
+import React from "react";
+import { BadgeProps } from "antd/es/badge";
+
+export interface StatusBadgeProps extends Omit<BadgeProps, 'status'> {
+  status: 'up' | 'down'
+}
+
+export default function StatusBadge(props: StatusBadgeProps) {
+  const { status,...rest } = props
+  return (
+     <Badge
+        size={'small'}
+        color={status === 'up' ? 'rgb(82, 196, 26)' : 'rgb(255, 77, 79)'}
+        text={status === 'up' ? 'Running' : 'Stopped'}
+        {...rest}
+     />
+  )
+}