diff --git a/src/Common.js b/src/Common.js
index baa7a42..7866700 100644
--- a/src/Common.js
+++ b/src/Common.js
@@ -10,13 +10,13 @@ import {
   TAG_RE,
   split_text,
 } from './text_splitter';
-import { save_config } from './Config';
 import renderMd from './Markdown';
 
 export { format_time, Time, TitleLine };
 
 export const API_BASE = `${process.env.REACT_APP_BACKEND || '/'}_api/v1`;
 export const API_BASE_2 = `${process.env.REACT_APP_BACKEND || '/'}_api/v2`;
+export const STORAGE_BASE = `${process.env.REACT_APP_STORAGE || ''}`;
 
 // https://stackoverflow.com/questions/3446170/escape-string-for-use-in-javascript-regex
 function escape_regex(string) {
@@ -429,29 +429,3 @@ export class ClickHandler extends PureComponent {
     );
   }
 }
-
-export function test_ipfs(hash) {
-  let key = 'testing_' + hash;
-  window[key] = { curr: 0 };
-  window.config.ipfs_gateway_list.forEach((url) => {
-    fetch(url.replaceAll('<hash>', hash), { method: 'HEAD' })
-      .then((res) => {
-        if (res.ok) {
-          console.log(url, 'success!');
-          if (window[key]) {
-            window[key].curr += 1;
-            window[key][url] = window[key].curr;
-            let list = window.config.ipfs_gateway_list;
-            list.sort(
-              (x, y) => (window[key][x] || 9999) - (window[key][y] || 999),
-            );
-            window.config.ipfs_gateway_list = list;
-            save_config(false);
-          }
-        }
-      })
-      .catch((e) => {
-        console.log(url, 'fail!');
-      });
-  });
-}
diff --git a/src/Config.js b/src/Config.js
index acaddec..21240fc 100644
--- a/src/Config.js
+++ b/src/Config.js
@@ -33,16 +33,6 @@ const DEFAULT_CONFIG = {
   block_cw: ['xxg', 'zzxg'],
   block_words_v4: ['🕷️', '[系统自动代发]'],
   whitelist_cw: [],
-  ipfs_gateway_list: [
-    'https://<hash>.ipfs.dweb.link/',
-    'https://<hash>.ipfs.infura-ipfs.io/',
-    'https://gateway.pinata.cloud/ipfs/<hash>',
-    'https://ipfs.eth.aragon.network/ipfs/<hash>',
-    'https://gateway.ipfs.io/ipfs/<hash>',
-    'https://ipfs.fleek.co/ipfs/<hash>',
-    'https://cloudflare-ipfs.com/ipfs/<hash>',
-    'https://ipfs.2read.net/ipfs/<hash>',
-  ],
 };
 
 export function load_config() {
@@ -70,6 +60,7 @@ export function load_config() {
   console.log('config loaded', config);
   window.config = config;
 }
+
 export function save_config(need_load = true) {
   localStorage['hole_config'] = JSON.stringify(window.config);
   if (need_load) load_config();
@@ -411,18 +402,6 @@ export class ConfigUI extends PureComponent {
             parse={(string) => string.split('\n')}
           />
           <hr />
-          <ConfigTextArea
-            id="ipfs_gateway_list"
-            callback={this.save_changes_bound}
-            name="候选ipfs网关"
-            description={
-              '<hash>表示要替换的哈希值。下次上传文件会使用第一行的，上传后根据速度调整。'
-            }
-            display={(array) => array.join('\n')}
-            sift={(array) => array.filter((v) => v)}
-            parse={(string) => string.split('\n')}
-          />
-          <hr />
           <ConfigSwitch
             callback={this.save_changes_bound}
             id="pressure"
diff --git a/src/UserAction.js b/src/UserAction.js
index 33b15e5..2e0f691 100644
--- a/src/UserAction.js
+++ b/src/UserAction.js
@@ -2,10 +2,10 @@ import React, { Component } from 'react';
 import {
   API_BASE,
   API_BASE_2,
+  STORAGE_BASE,
   SafeTextarea,
   PromotionBar,
   HighlightedMarkdown,
-  test_ipfs,
 } from './Common';
 import { MessageViewer } from './Message';
 import { LoginPopup } from './infrastructure/widgets';
@@ -671,7 +671,7 @@ export class PostForm extends Component {
       xh.addEventListener('load', this.upload_complete.bind(this), false);
       xh.addEventListener('error', this.upload_error.bind(this), false);
       xh.addEventListener('abort', this.upload_abort.bind(this), false);
-      xh.open('POST', API_BASE + '/upload');
+      xh.open('POST', API_BASE_2 + '/upload');
       xh.setRequestHeader('User-Token', this.props.token);
       xh.send(f);
     }
@@ -679,20 +679,13 @@ export class PostForm extends Component {
 
   update_text_after_upload(data) {
     const { file_name, file_type } = this.state;
-    let url =
-      (window.config.ipfs_gateway_list[0] || '<hash>(无ipfs网关)').replaceAll(
-        '<hash>',
-        data.hash,
-      ) +
-      `?filename=${encodeURIComponent(file_name)}&filetype=${encodeURIComponent(
-        file_type,
-      )}`;
-    test_ipfs(data.hash);
+    let url = `${STORAGE_BASE}/${data.path}?filename=${encodeURIComponent(
+      file_name,
+    )}&filetype=${encodeURIComponent(file_type)}`;
     let new_text =
       this.state.text +
       '\n' +
-      (file_type.startsWith('image/') ? `![](${url})` : url) +
-      ` [加载失败请点击此](${window.location.origin}/ipfs.html#${data.hash})\n\n---\n`;
+      (file_type.startsWith('image/') ? `![](${url})` : url);
     this.setState({ text: new_text });
     this.area_ref.current.set(new_text);
   }
@@ -884,28 +877,7 @@ export class PostForm extends Component {
           </small>
         </p>
         <p>
-          <small>
-            首选ipfs网关可以在设置中修改，如效果不佳仍可使用图床，例如：
-            <a href="https://imgtu.com/" target="_blank">
-              路过图床
-            </a>
-            、
-            <a href="https://sm.ms/" target="_blank">
-              sm.ms
-            </a>
-            、
-            <a
-              href="https://bbs.pku.edu.cn/v2/post-read.php?bid=154&threadid=3743"
-              target="_blank"
-            >
-              未名BBS
-            </a>
-            、
-            <a href="https://zhuanlan.zhihu.com/write" target="_blank">
-              知乎
-            </a>
-            。
-          </small>
+          <small>上传文件限制200M，保留至少一个月。也可使用第三方图床。</small>
         </p>
       </form>
     );