diff --git a/remote_judger/src/providers/codeforces.ts b/remote_judger/src/providers/codeforces.ts
index 76eb301..bf652ad 100644
--- a/remote_judger/src/providers/codeforces.ts
+++ b/remote_judger/src/providers/codeforces.ts
@@ -11,7 +11,7 @@ import Logger from '../utils/logger';
 proxy(superagent);
 const logger = new Logger('remote/codeforces');
 
-const langs_map = {
+const LANGS_MAP = {
   C: {
     name: 'GNU GCC C11 5.1.0',
     id: 43,
@@ -88,7 +88,10 @@ export default class CodeforcesProvider implements IBasicProvider {
   }
 
   static constructFromAccountData(data) {
-    throw new Error('Method not implemented.');
+    return new this({
+      type: 'codeforces',
+      cookie: Object.entries(data).map(([key, value]) => `${key}=${value}`),
+    });
   }
 
   cookie: string[] = [];
@@ -166,23 +169,41 @@ export default class CodeforcesProvider implements IBasicProvider {
   get loggedIn() {
     return this.get('/enter').then(res => {
       const html = res.text;
+
       if (html.includes('Login into Codeforces')) return false;
+
       if (html.length < 1000 && html.includes('Redirecting...')) {
         logger.debug('Got a redirect', html);
         return false;
       }
+
+      if (res.header['set-cookie']) {
+        const _39ce7 = this.getCookie.call(
+          { cookie: res.header['set-cookie'] },
+          '39ce7'
+        );
+
+        if (_39ce7) this.setCookie('39ce7', _39ce7);
+      }
+
       return true;
     });
   }
 
   async ensureLogin() {
     if (await this.loggedIn) return true;
+
     logger.info('retry normal login');
+
+    if (!this.account.handle) return false;
+
     const [csrf, ftaa, bfaa] = await this.getCsrfToken('/enter');
     const { header } = await this.get('/enter');
+
     if (header['set-cookie']) {
       this.cookie = header['set-cookie'];
     }
+
     const res = await this.post('/enter').send({
       csrf_token: csrf,
       action: 'enter',
@@ -193,10 +214,13 @@ export default class CodeforcesProvider implements IBasicProvider {
       remember: 'on',
       _tta: this.tta(this.getCookie('39ce7')),
     });
+
     const cookie = res.header['set-cookie'];
+
     if (cookie) {
       this.cookie = cookie;
     }
+
     if (await this.loggedIn) {
       logger.success('Logged in');
       return true;
@@ -212,18 +236,32 @@ export default class CodeforcesProvider implements IBasicProvider {
     next,
     end
   ) {
-    const programType = langs_map[lang] || langs_map['C++'];
+    if (!(await this.ensureLogin())) {
+      end({
+        error: true,
+        status: 'Judgment Failed',
+        message: 'Login failed',
+      });
+
+      return null;
+    }
+
+    const programType = LANGS_MAP[lang] || LANGS_MAP['C++'];
     const comment = programType.comment;
+
     if (comment) {
       const msg = `S2OJ Submission #${submissionId} @ ${new Date().getTime()}`;
       if (typeof comment === 'string') code = `${comment} ${msg}\n${code}`;
       else if (comment instanceof Array)
         code = `${comment[0]} ${msg} ${comment[1]}\n${code}`;
     }
+
     const [type, contestId, problemId] = parseProblemId(id);
+
     const [csrf, ftaa, bfaa] = await this.getCsrfToken(
       type !== 'GYM' ? '/problemset/submit' : `/gym/${contestId}/submit`
     );
+
     logger.debug(
       'Submitting',
       id,
@@ -231,6 +269,7 @@ export default class CodeforcesProvider implements IBasicProvider {
       lang,
       `(S2OJ Submission #${submissionId})`
     );
+
     // TODO: check submit time to ensure submission
     const { text: submit, error } = await this.post(
       `/${
diff --git a/web/app/models/UOJRemoteProblem.php b/web/app/models/UOJRemoteProblem.php
index 636984a..15abe74 100644
--- a/web/app/models/UOJRemoteProblem.php
+++ b/web/app/models/UOJRemoteProblem.php
@@ -14,7 +14,7 @@ class UOJRemoteProblem {
 				'ограничение по времени на тест',
 			],
 			'languages' => ['C', 'C++', 'C++17', 'C++20', 'Java17', 'Pascal', 'Python2', 'Python3'],
-			'submit_type' => ['bot'],
+			'submit_type' => ['bot', 'my'],
 		],
 		'atcoder' => [
 			'name' => 'AtCoder',
diff --git a/web/js/uoj.js b/web/js/uoj.js
index 3e1f1c2..47ddeae 100644
--- a/web/js/uoj.js
+++ b/web/js/uoj.js
@@ -1026,15 +1026,47 @@ $.fn.remote_submit_type_group = function(oj, pid, url, submit_type) {
 
 			div_submit_type_my.append(
 				$('<div class="row mt-3" />')
-					.append($('<div class="col-sm-2" />').append('<label for="input-luogu_uid" class="form-col-label">_uid</label>'))
+					.append($('<div class="col-sm-2" />').append('<label for="input-luogu_uid" class="col-form-label">_uid</label>'))
 					.append($('<div class="col-sm-4" />').append(input_luogu_uid))
 					.append($('<div class="col-sm-6" />').append($('<div class="form-text" />').append('请填入 Cookie 中的 <code>_uid</code>。')))
 			).append(
 				$('<div class="row mt-3" />')
-					.append($('<div class="col-sm-2" />').append('<label for="input-luogu_client_id" class="form-col-label">__client_id</label>'))
+					.append($('<div class="col-sm-2" />').append('<label for="input-luogu_client_id" class="col-form-label">__client_id</label>'))
 					.append($('<div class="col-sm-4" />').append(input_luogu_client_id))
 					.append($('<div class="col-sm-6" />').append($('<div class="form-text" />').append('请填入 Cookie 中的 <code>__client_id</code>。')))
 			).append(input_my_account_data);
+		} else if (oj == 'codeforces') {
+			var codeforces_account_data = {"JSESSIONID": ""};
+			var input_codeforces_jsessionid = $('<input class="form-control" type="text" name="codeforces_jsessionid" id="input-codeforces_jsessionid" />');
+
+			if ('localStorage' in window) {
+				try {
+					var codeforces_account_data_str = localStorage.getItem('uoj_remote_judge_codeforces_account_data');
+					if (codeforces_account_data_str) {
+						codeforces_account_data = JSON.parse(codeforces_account_data_str);
+					}
+				} catch (e) {}
+
+				var save_codeforces_account_data = function() {
+					localStorage.setItem('uoj_remote_judge_codeforces_account_data', JSON.stringify(codeforces_account_data));
+				}
+			}
+
+			input_codeforces_jsessionid.change(function() {
+				codeforces_account_data.JSESSIONID = $(this).val();
+				input_my_account_data.val(JSON.stringify(codeforces_account_data));
+				save_codeforces_account_data();
+			});
+
+			input_my_account_data.val(JSON.stringify(codeforces_account_data));
+			input_codeforces_jsessionid.val(codeforces_account_data.JSESSIONID);
+
+			div_submit_type_my.append(
+				$('<div class="row mt-3" />')
+					.append($('<div class="col-sm-2" />').append('<label for="input-codeforces_jsessionid" class="col-form-label">JSESSIONID</label>'))
+					.append($('<div class="col-sm-4" />').append(input_codeforces_jsessionid))
+					.append($('<div class="col-sm-6" />').append($('<div class="form-text" />').append('请填入 Cookie 中的 <code>JSESSIONID</code>。')))
+			).append(input_my_account_data);
 		}
 
 		$(this).append(