pull admin_service.py

2、简化评级流程（快很多，几乎与网站相同）
3、删除了原先用于提取词根的函数

.gitignore

@@ -10,4 +10,3 @@ app/static/frequency/frequency.p
 app/static/wordfreqapp.db
 app/static/donate-the-author.jpg
 app/static/donate-the-author-hidden.jpg
-app/model/__pycache__/

README.md

@@ -182,7 +182,6 @@ Bug report: http://118.25.96.118/bugzilla/show_bug.cgi?id=215
 
 
 
-
 ### 丁锐
 
 修复了以下漏洞
@@ -193,4 +192,3 @@ Bug report: http://118.25.96.118/bugzilla/show_bug.cgi?id=489
 
 
 *Last modified on 2023-01-30*
-

app/Article.py

@@ -7,7 +7,7 @@ import random, glob
 import hashlib
 from datetime import datetime
 from flask import Flask, request, redirect, render_template, url_for, session, abort, flash, get_flashed_messages
-from difficulty import get_difficulty_level, text_difficulty_level, user_difficulty_level
+from difficulty import get_difficulty_level_for_user, text_difficulty_level, user_difficulty_level
 
 
 path_prefix = '/var/www/wordfreq/wordfreq/'
@@ -32,20 +32,12 @@ def get_article_body(s):
     return '\n'.join(lst)
 
 
-def get_today_article(user_word_list, visited_articles):
+def get_today_article(user_word_list, articleID):
     rq = RecordQuery(path_prefix + 'static/wordfreqapp.db')
-    if visited_articles is None:
-        visited_articles = {
-            "index" : 0,  # 为 article_ids 的索引
-            "article_ids": []  # 之前显示文章的id列表，越后越新
-        }
-    if visited_articles["index"] > len(visited_articles["article_ids"])-1:  # 生成新的文章，因此查找所有的文章
+    if articleID == None:
         rq.instructions("SELECT * FROM article")
-    else:  # 生成阅读过的文章，因此查询指定 article_id 的文章
-        if visited_articles["article_ids"][visited_articles["index"]] == 'null':  # 可能因为直接刷新页面导致直接去查询了'null'，因此当刷新的页面的时候，需要直接进行“上一篇”操作
-            visited_articles["index"] -= 1
-            visited_articles["article_ids"].pop()
-        rq.instructions('SELECT * FROM article WHERE article_id=%d' % (visited_articles["article_ids"][visited_articles["index"]]))
+    else:
+        rq.instructions('SELECT * FROM article WHERE article_id=%d' % (articleID))
     rq.do()
     result = rq.get_results()
     random.shuffle(result)
@@ -53,51 +45,41 @@ def get_today_article(user_word_list, visited_articles):
     # Choose article according to reader's level
     d1 = load_freq_history(path_prefix + 'static/frequency/frequency.p')
     d2 = load_freq_history(path_prefix + 'static/words_and_tests.p')
-    d3 = get_difficulty_level(d1, d2)
+    d3 = get_difficulty_level_for_user(d1, d2)
 
-    d = None
-    result_of_generate_article = "not found"
+    d = {}
     d_user = load_freq_history(user_word_list)
     user_level = user_difficulty_level(d_user, d3)  # more consideration as user's behaviour is dynamic. Time factor should be considered.
-    text_level = 0
-    if visited_articles["index"] > len(visited_articles["article_ids"])-1:  # 生成新的文章
-        amount_of_visited_articles = len(visited_articles["article_ids"])
-        amount_of_existing_articles = result.__len__()
-        if amount_of_visited_articles == amount_of_existing_articles:  # 如果当前阅读过的文章的数量 == 存在的文章的数量，即所有的书本都阅读过了
-            result_of_generate_article = "had read all articles"
-        else:
-            for k in range(3):  # 最多尝试3次
-                for reading in result:
-                    text_level = text_difficulty_level(reading['text'], d3)
-                    factor = random.gauss(0.8, 0.1)  # a number drawn from Gaussian distribution with a mean of 0.8 and a stand deviation of 1
-                    if reading['article_id'] not in visited_articles["article_ids"] and within_range(text_level, user_level, (8.0 - user_level) * factor):  # 新的文章之前没有出现过且符合一定范围的水平
-                        d = reading
-                        visited_articles["article_ids"].append(d['article_id'])  # 列表添加新的文章id；下面进行
-                        result_of_generate_article = "found"
-                        break
-                if result_of_generate_article == "found":  # 用于成功找到文章后及时退出外层循环
-                    break
-        if result_of_generate_article != "found":  # 阅读完所有文章，或者循环3次没有找到适合的文章，则放入空（“null”）
-            visited_articles["article_ids"].append('null')
-    else:  # 生成已经阅读过的文章
+    random.shuffle(result)  # shuffle list
     d = random.choice(result)
     text_level = text_difficulty_level(d['text'], d3)
-        result_of_generate_article = "found"
+    if articleID == None:
+        for reading in result:
+            text_level = text_difficulty_level(reading['text'], d3)
+            factor = random.gauss(0.8,
+                                  0.1)  # a number drawn from Gaussian distribution with a mean of 0.8 and a stand deviation of 1
+            if within_range(text_level, user_level, (8.0 - user_level) * factor):
+                d = reading
+                break
 
-    today_article = None
-    if d:
-        today_article = {
-            "user_level": '%4.2f' % user_level,
-            "text_level": '%4.2f' % text_level,
-            "date": d['date'],
-            "article_title": get_article_title(d['text']),
-            "article_body": get_article_body(d['text']),
-            "source": d["source"],
-            "question": get_question_part(d['question']),
-            "answer": get_answer_part(d['question'])
-        }
-
-    return visited_articles, today_article, result_of_generate_article
+    s = '<div class="alert alert-success" role="alert">' \
+        'According to your word list, your level is <span class="badge bg-success">%4.2f</span>  ' \
+        'and we have chosen an article with a difficulty level of ' \
+        '<span class="badge bg-success">%4.2f</span> for you.' \
+        '</div>' % (user_level, text_level)
+    s += '<p class="text-muted">Article added on: %s</p>' % (d['date'])
+    s += '<div class="p-3 mb-2 bg-light text-dark">'
+    article_title = get_article_title(d['text'])
+    article_body = get_article_body(d['text'])
+    s += '<p class="display-5">%s</p>' % (article_title)
+    s += '<p class="lead"><font id="article" size=2>%s</font></p>' % (article_body)
+    s += '<p><small class="text-muted">%s</small></p>' % (d['source'])
+    s += '<p><b>%s</b></p>' % (get_question_part(d['question']))
+    s = s.replace('\n', '<br/>')
+    s += '%s' % (get_answer_part(d['question']))
+    s += '</div>'
+    session['articleID'] = d['article_id']
+    return s
 
 
 def load_freq_history(path):
@@ -137,4 +119,21 @@ def get_answer_part(s):
             flag = 1
         elif flag == 1:
             result.append(line)
-    return '\n'.join(result)
+    # https://css-tricks.com/snippets/javascript/showhide-element/
+    js = '''
+<script type="text/javascript">
+
+    function toggle_visibility(id) {
+       var e = document.getElementById(id);
+       if(e.style.display == 'block')
+          e.style.display = 'none';
+       else
+          e.style.display = 'block';
+    }
+</script>
+    '''
+    html_code = js
+    html_code += '\n'
+    html_code += '<button onclick="toggle_visibility(\'answer\');">ANSWER</button>\n'
+    html_code += '<div id="answer" style="display:none;">%s</div>\n' % ('\n'.join(result))
+    return html_code

app/Login.py

@@ -3,18 +3,6 @@ import string
 from datetime import datetime, timedelta
 from UseSqlite import InsertQuery, RecordQuery
 
-def md5(s):
-    '''
-    MD5摘要
-    :param str: 字符串
-    :return: 经MD5以后的字符串
-    '''
-    h = hashlib.md5(s.encode(encoding='utf-8'))
-    return h.hexdigest()
-
-# import model.user after the defination of md5(s) to avoid circular import
-from model.user import get_user_by_username, insert_user, update_password_by_username
-
 path_prefix = '/var/www/wordfreq/wordfreq/'
 path_prefix = './'  # comment this line in deployment
 
@@ -24,9 +12,13 @@ def verify_pass(newpass,oldpass):
 
 
 def verify_user(username, password):
-    user = get_user_by_username(username)
-    encoded_password = md5(username + password)
-    return user is not None and user.password == encoded_password
+    rq = RecordQuery(path_prefix + 'static/wordfreqapp.db')
+    password = md5(username + password)
+    rq.instructions_with_parameters("SELECT * FROM user WHERE name=:username AND password=:password", dict(
+        username=username, password=password))  # the named style https://docs.python.org/3/library/sqlite3.html
+    rq.do_with_parameters()
+    result = rq.get_results()
+    return result != []
 
 
 def add_user(username, password):
@@ -34,12 +26,19 @@ def add_user(username, password):
     expiry_date = (datetime.now() + timedelta(days=30)).strftime('%Y%m%d') # will expire after 30 days
     # 将用户名和密码一起加密，以免暴露不同用户的相同密码
     password = md5(username + password)
-    insert_user(username=username, password=password, start_date=start_date, expiry_date=expiry_date)
+    rq = InsertQuery(path_prefix + 'static/wordfreqapp.db')
+    rq.instructions_with_parameters("INSERT INTO user VALUES (:username, :password, :start_date, :expiry_date)", dict(
+        username=username, password=password, start_date=start_date, expiry_date=expiry_date))
+    rq.do_with_parameters()
 
 
 def check_username_availability(username):
-    existed_user = get_user_by_username(username)
-    return existed_user is None
+    rq = RecordQuery(path_prefix + 'static/wordfreqapp.db')
+    rq.instructions_with_parameters(
+        "SELECT * FROM user WHERE name=:username", dict(username=username))
+    rq.do_with_parameters()
+    result = rq.get_results()
+    return result == []
 
 
 def change_password(username, old_password, new_password):
@@ -55,16 +54,35 @@ def change_password(username, old_password, new_password):
     # 将用户名和密码一起加密，以免暴露不同用户的相同密码
     if verify_pass(new_password,old_password): #新旧密码一致
         return False
-    update_password_by_username(username, new_password)
+    password = md5(username + new_password)
+    rq = InsertQuery(path_prefix + 'static/wordfreqapp.db')
+    rq.instructions_with_parameters("UPDATE user SET password=:password WHERE name=:username", dict(
+        password=password, username=username))
+    rq.do_with_parameters()
     return True
 
 
 def get_expiry_date(username):
-    user = get_user_by_username(username)
-    if user is None:
-        return '20191024'
+    rq = RecordQuery(path_prefix + 'static/wordfreqapp.db')
+    rq.instructions_with_parameters(
+        "SELECT expiry_date FROM user WHERE name=:username", dict(username=username))
+    rq.do_with_parameters()
+    result = rq.get_results()
+    if len(result) > 0:
+        return result[0]['expiry_date']
     else:
-        return user.expiry_date
+        return '20191024'
+
+
+def md5(s):
+    '''
+    MD5摘要
+    :param str: 字符串
+    :return: 经MD5以后的字符串
+    '''
+    h = hashlib.md5(s.encode(encoding='utf-8'))
+    return h.hexdigest()
+
 
 class UserName:
     def __init__(self, username):
@@ -78,9 +96,9 @@ class UserName:
         if ' ' in self.username: # a user name must not include a whitespace
             return 'Whitespace is not allowed in the user name.'
         for c in self.username: # a user name must not include special characters, except non-leading periods or underscores
-            if c in string.punctuation and c != '.' and c != '_':
+            if c in string.punctuation and c is not '.' and c is not '_':
                 return f'{c} is not allowed in the user name.'
-        if self.username in ['signup', 'login', 'logout', 'reset', 'mark', 'back', 'unfamiliar', 'familiar', 'del', 'admin']:
+        if self.username in ['signup', 'login', 'logout', 'reset', 'mark', 'back', 'unfamiliar', 'familiar', 'del']:
             return 'You used a restricted word as your user name.  Please come up with a better one.'
 
         return 'OK'

app/account_service.py

@@ -19,15 +19,21 @@ def signup():
         # POST方法需判断是否注册成功，再根据结果返回不同的内容
         username = escape(request.form['username'])
         password = escape(request.form['password'])
+        password2 = escape(request.form['password2'])
         
         #! 添加如下代码为了过滤注册时的非法字符
         warn = WarningMessage(username)
         if str(warn) != 'OK':
-            return jsonify({'status': '3', 'warn': str(warn)})
+            return str(warn)
         
         available = check_username_availability(username)
         if not available: # 用户名不可用
-            return jsonify({'status': '0'})
+            flash('用户名 %s 已经被注册。' % (username))
+            return render_template('signup.html')
+        elif len(password.strip()) < 4: # 密码过短
+            return '密码过于简单。'
+        elif password != password2:
+            return '确认密码与输入密码不一致！'
         else: # 添加账户信息
             add_user(username, password)
             verified = verify_user(username, password)
@@ -37,10 +43,11 @@ def signup():
                 session[username] = username
                 session['username'] = username
                 session['expiry_date'] = get_expiry_date(username)
-                session['visited_articles'] = None
-                return jsonify({'status': '2'})
+                session['articleID'] = None
+                return '<p>恭喜，你已成功注册， 你的用户名是 <a href="%s">%s</a>。</p>\
+                <p><a href="/%s">开始使用</a> <a href="/">返回首页</a><p/>' % (username, username, username)
             else:
-                return jsonify({'status': '1'})
+                return '用户名密码验证失败。'
 
 
 
@@ -52,7 +59,13 @@ def login():
     '''
     if request.method == 'GET':
         # GET请求
+        if not session.get('logged_in'):
+            # 未登录，返回登录页面
             return render_template('login.html')
+        else:
+            # 已登录，提示信息并显示登出按钮
+            return '你已登录 <a href="/%s">%s</a>。 登出点击<a href="/logout">这里</a>。' % (
+                session['username'], session['username'])
     elif request.method == 'POST':
         # POST方法用于判断登录是否成功
         # check database and verify user
@@ -66,10 +79,10 @@ def login():
             session['username'] = username
             user_expiry_date = get_expiry_date(username)
             session['expiry_date'] = user_expiry_date
-            session['visited_articles'] = None
-            return jsonify({'status': '1'})
+            session['articleID'] = None
+            return redirect(url_for('user_bp.userpage', username=username))
         else:
-            return jsonify({'status': '0'})
+            return '无法通过验证。'
 
 
 @accountService.route("/logout", methods=['GET', 'POST'])
@@ -102,9 +115,31 @@ def reset():
         # POST请求用于提交修改后信息
         old_password = escape(request.form['old-password'])
         new_password = escape(request.form['new-password'])
+
+        re_new_password = escape(request.form['re-new-password'])  # 确认新密码
+        if re_new_password != new_password: #验证新密码两次输入是否相同
+            return '新密码不匹配，请重新输入'
+        if len(new_password) < 4: #验证新密码长度，原则参照注册模块
+            return '密码过于简单。(密码长度至少4位)'
+
         flag = change_password(username, old_password, new_password) # flag表示是否修改成功
         if flag:
             session['logged_in'] = False
-            return jsonify({'status':'1'})  # 修改成功
+            return \
+'''
+<script>
+alert('密码修改成功，请重新登录。');
+window.location.href="/login";
+</script>
+
+'''
+
         else:
-            return jsonify({'status':'2'})  # 修改失败
+            return \
+'''
+<script>
+alert('密码修改失败');
+window.location.href="/reset";
+</script>
+
+'''

app/difficulty.py

@@ -8,6 +8,7 @@
 import pickle
 import math
 from wordfreqCMD import remove_punctuation, freq, sort_in_descending_order, sort_in_ascending_order
+import snowballstemmer
 
 
 def load_record(pickle_fname):
@@ -16,41 +17,48 @@ def load_record(pickle_fname):
     f.close()
     return d
 
+def convert_test_type_to_difficulty_level(d):
+    """
+    对原本的单词库中的单词进行难度评级
+    :param d: 存储了单词库pickle文件中的单词的字典
+    :return:
+    """
+    result = {}
+    L = list(d.keys())  # in d, we have test types (e.g., CET4,CET6,BBC) for each word
 
-def difficulty_level_from_frequency(word, d):
-    level = 1
-    if not word in d:
-        return level
+    for k in L:
+        if 'CET4' in d[k]:
+            result[k] = 4  # CET4 word has level 4
+        elif 'OXFORD3000' in d[k]:
+            result[k] = 5
+        elif 'CET6' in d[k] or 'GRADUATE' in d[k]:
+            result[k] = 6
+        elif 'OXFORD5000' in d[k] or 'IELTS' in d[k]:
+            result[k] = 7
+        elif 'BBC' in d[k]:
+            result[k] = 8
 
-    if 'what' in d:
-        ratio = (d['what']+1)/(d[word]+1) # what is a frequent word
-        level = math.log( max(ratio, 1), 2)
-
-    level = min(level, 8) 
-    return level
+    return result  # {'apple': 4, ...}
 
 
-def get_difficulty_level(d1, d2):
-    d = {}
-    L = list(d1.keys())  # in d1, we have freuqence for each word
-    L2 = list(d2.keys()) # in d2, we have test types (e.g., CET4,CET6,BBC) for each word
-    L.extend(L2)
-    L3 = list(set(L)) # L3 contains all words
-    for k in L3:
-        if k in d2:
-            if 'CET4' in d2[k]:
-                d[k] = 4 # CET4 word has level 4
-            elif 'CET6' in d2[k]:
-                d[k] = 6
-            elif 'BBC' in d2[k]:
-                d[k] = 8
-                if k in d1: # BBC could contain easy words that are not in CET4 or CET6.  So 4 is not reasonable.  Recompute difficulty level.
-                    d[k] = min(difficulty_level_from_frequency(k, d1), d[k])
-        elif k in d1:
-            d[k] = difficulty_level_from_frequency(k, d1)
-
-    return d
+def get_difficulty_level_for_user(d1, d2):
+    """
+    d2 来自于词库的35511个已标记单词
+    d1 用户不会的词
+    在d2的后面添加单词，没有新建一个新的字典
+    """
+    d2 = convert_test_type_to_difficulty_level(d2)   # 根据d2的标记评级{'apple': 4, 'abandon': 4, ...}
+    stem = snowballstemmer.stemmer('english')
 
+    for k in d1:        # 用户的词
+        if k in d2:     # 如果用户的词以原型的形式存在于词库d2中
+            continue    # 无需评级，跳过
+        elif stem.stemWord(k) in d2:     # 如果用户的词的词根存在于词库d2的词根库中
+            d2[k] = d2[stem.stemWord(k)]        # 按照词根进行评级
+            break
+        else:
+            d2[k] = 3       # 如果k的词根都不在，那么就当认为是3级
+    return d2
         
 
 def revert_dict(d):
@@ -136,7 +144,7 @@ if __name__ == '__main__':
     #print(d2)
 
 
-    d3 = get_difficulty_level(d1, d2)
+    d3 = get_difficulty_level_for_user(d1, d2)
 
     s = '''
 South Lawn

app/main.py

@@ -5,24 +5,24 @@
 # Copyright 2019 (C) Hui Lan <hui.lan@cantab.net>
 # Written permission must be obtained from the author for commercial uses.
 ###########################################################################
+
 from flask import escape
 from Login import *
 from Article import *
 import Yaml
 from user_service import userService
 from account_service import accountService
-from admin_service import adminService, ADMIN_NAME
 app = Flask(__name__)
 app.secret_key = 'lunch.time!'
 
 # 将蓝图注册到Lab app
 app.register_blueprint(userService)
 app.register_blueprint(accountService)
-app.register_blueprint(adminService)
 
 path_prefix = '/var/www/wordfreq/wordfreq/'
 path_prefix = './'  # comment this line in deployment
 
+
 def get_random_image(path):
     '''
     返回随机图
@@ -39,7 +39,8 @@ def get_random_ads():
     返回随机广告
     :return: 一个广告(包含HTML标签)
     '''
-    return random.choice(['个性化分析精准提升', '你的专有单词本', '智能捕捉阅读弱点，针对性提高你的阅读水平'])
+    ads = random.choice(['个性化分析精准提升', '你的专有单词本', '智能捕捉阅读弱点，针对性提高你的阅读水平'])
+    return ads + '。 <a href="/signup">试试</a>吧！'
 
 
 def appears_in_test(word, d):
@@ -97,13 +98,9 @@ def mainpage():
         d = load_freq_history(path_prefix + 'static/frequency/frequency.p')
         d_len = len(d)
         lst = sort_in_descending_order(pickle_idea.dict2lst(d))
-        return render_template('mainpage_get.html', 
-                               admin_name=ADMIN_NAME,
-                               random_ads=random_ads,
-                               d_len=d_len,
-                               lst=lst,
-                               yml=Yaml.yml,
-                               number_of_essays=number_of_essays)
+        return render_template('mainpage_get.html', random_ads=random_ads, number_of_essays=number_of_essays,
+                               d_len=d_len, lst=lst, yml=Yaml.yml)
+
 
 
 if __name__ == '__main__':

app/model/__init__.py

@@ -1,30 +0,0 @@
-from pony.orm import *
-
-db = Database()
-db.bind("sqlite", "../static/wordfreqapp.db", create_db=True)  # bind sqlite file
-
-
-class User(db.Entity):
-    _table_ = "user"  # table name
-    name = PrimaryKey(str)
-    password = Optional(str)
-    start_date = Optional(str)
-    expiry_date = Optional(str)
-
-
-class Article(db.Entity):
-    _table_ = "article"  # table name
-    article_id = PrimaryKey(int, auto=True)
-    text = Optional(str)
-    source = Optional(str)
-    date = Optional(str)
-    level = Optional(str)
-    question = Optional(str)
-
-
-db.generate_mapping(create_tables=True)  # must mapping after class declaration
-
-
-if __name__ == "__main__":
-    with db_session:
-        print(Article[2].text)  # test get article which id=2 text content

app/model/article.py

@@ -1,34 +0,0 @@
-from model import *
-from datetime import datetime
-
-def add_article(content, source="manual_input", level="5", question="No question"):
-    with db_session:
-        # add one article to sqlite
-        Article(
-            text=content,
-            source=source,
-            date=datetime.now().strftime("%-d %b %Y"),  # format style of `5 Oct 2022`
-            level=level,
-            question=question,
-        )
-
-
-def delete_article_by_id(article_id):
-    article_id &= 0xFFFFFFFF  # max 32 bits
-    with db_session:
-        article = Article.select(article_id=article_id)
-        if article:
-            article.first().delete()
-
-
-def get_number_of_articles():
-    with db_session:
-        return len(Article.select()[:])
-
-
-def get_page_articles(num, size):
-    with db_session:
-        return [
-            x
-            for x in Article.select().order_by(desc(Article.article_id)).page(num, size)
-        ]

app/model/user.py

@@ -1,30 +0,0 @@
-from model import *
-from Login import md5
-from pony import orm
-
-def get_users():
-    with db_session:
-        return User.select().order_by(User.name)[:]
-
-def get_user_by_username(username):
-    with db_session:
-        user = User.select(name=username)
-        if user:
-            return user.first()
-
-def insert_user(username, password, start_date, expiry_date):
-    with db_session:
-        user = User(name=username, password=password, start_date=start_date, expiry_date=expiry_date)
-        orm.commit()
-
-def update_password_by_username(username, password="123456"):
-    with db_session:
-        user = User.select(name=username)
-        if user:
-            user.first().password = md5(username + password)
-
-def update_expiry_time_by_username(username, expiry_time="20230323"):
-    with db_session:
-        user = User.select(name=username)
-        if user:
-            user.first().expiry_date = expiry_time

app/pickle_idea2.py

@@ -68,7 +68,7 @@ def save_frequency_to_pickle(d, pickle_fname):
     d2 = {}
     for k in d:
         if not k in exclusion_lst and not k.isnumeric() and not len(k) < 2:
-            d2[k] = list(sorted(d[k])) # 原先这里是d2[k] = list(sorted(set(d[k])))
+            d2[k] = list(sorted(set(d[k])))
     pickle.dump(d2, f)
     f.close()
 

app/static/config.yml

@@ -1,16 +1,16 @@
 # 全局引入的css文件地址
 css:
   item:
-    - ../static/css/bootstrap.css
+    - static/css/bootstrap.css
 
 # 全局引入的js文件地址
 js:
   head: # 在页面加载之前加载
-    - ../static/js/jquery.js
-    - ../static/js/word_operation.js
+    - static/js/jquery.js
+    - static/js/word_operation.js
   bottom: # 在页面加载完之后加载
-    - ../static/js/fillword.js
-    - ../static/js/highlight.js
+    - static/js/fillword.js
+    - static/js/highlight.js
 
 # 高亮样式，目前仅支持修改颜色
 highlight:

app/static/js/highlight.js

@@ -38,18 +38,8 @@ function highLight() {
         list[i] = list[i].replace('|', "");
         list[i] = list[i].replace('?', "");
         if (list[i] !== "" && "<mark>".indexOf(list[i]) === -1 && "</mark>".indexOf(list[i]) === -1) {
-           //将文章中所有出现该单词word的地方改为："<mark>" + word + "<mark>"。 正则表达式RegExp()中，"\\b"代表单词边界匹配。
-
-            //修改代码
-            let articleContent_fb = articleContent;  //文章副本
-            while(articleContent_fb.toLowerCase().indexOf(list[i].toLowerCase()) !== -1 && list[i]!=""){
-                //找到副本中和list[i]匹配的第一个单词(第一种匹配情况),并赋值给list[i]。
-                const index = articleContent_fb.toLowerCase().indexOf(list[i].toLowerCase());
-                list[i] = articleContent_fb.substring(index, index + list[i].length);
-
-                articleContent_fb = articleContent_fb.substring(index + list[i].length);    // 使用副本中list[i]之后的子串替换掉副本
-                articleContent = articleContent.replace(new RegExp("\\b"+list[i]+"\\b","g"),"<mark>" + list[i] + "</mark>");
-            }
+	    //将文章中所有出现该单词word的地方改为：" <mark>" + word + "<mark> "。 正则表达式RegExp()中，"\\s"代表单词前后必须要有空格，以防止只对单词中的部分字符高亮的情况出现。
+            articleContent = articleContent.replace(new RegExp("\\s"+list[i]+"\\s", "g"), " <mark>" + list[i] + "</mark> ");
         }
     }
     document.getElementById("article").innerHTML = articleContent;

app/templates/admin_index.html

@@ -1,55 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport"
-        content="width=device-width, initial-scale=1.0, minimum-scale=0.5, maximum-scale=3.0, user-scalable=yes" />
-    <meta name="format-detection" content="telephone=no" />
-    {{ yml['header'] | safe }}
-    {% if yml['css']['item'] %}
-    {% for css in yml['css']['item'] %}
-    <link href="{{ css }}" rel="stylesheet">
-    {% endfor %}
-    {% endif %}
-    {% if yml['js']['head'] %}
-    {% for js in yml['js']['head'] %}
-    <script src="{{ js }}"></script>
-    {% endfor %}
-    {% endif %}
-
-</head>
-
-<body class="container" style="width: 800px; margin: auto; margin-top:24px;">
-    <nav class="navbar navbar-expand-lg bg-light">
-        <div class="container-fluid">
-            <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav"
-                aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
-                <span class="navbar-toggler-icon"></span>
-            </button>
-            <div class="collapse navbar-collapse" id="navbarNav">
-                <ul class="navbar-nav">
-                    <li class="nav-item">
-                        <a class="nav-link" href="/{{ username }}/userpage">返回 {{ username }}</a>
-                    </li>
-                </ul>
-            </div>
-        </div>
-    </nav>
-
-    <div class="card" style="margin-top:24px;">
-        <div class="card-header">
-            请选择您需要的操作
-        </div>
-        <ul class="list-group list-group-flush">
-            <li class="list-group-item">
-                <div class="d-grid gap-2">
-                    <a href="/admin/article" class="btn btn-outline-primary" type="button">管理文章</a>
-                    <a href="/admin/user" class="btn btn-outline-primary" type="button">管理用户</a>
-                </div>
-            </li>
-        </ul>
-    </div>
-</body>
-
-</html>

app/templates/admin_manage_article.html

@@ -1,103 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport"
-        content="width=device-width, initial-scale=1.0, minimum-scale=0.5, maximum-scale=3.0, user-scalable=yes" />
-    <meta name="format-detection" content="telephone=no" />
-    <link href="../static/css/bootstrap.css" rel="stylesheet">
-</head>
-
-<body class="container" style="width: 800px; margin: auto; margin-top:24px;">
-    <nav class="navbar navbar-expand-lg bg-light">
-        <div class="container-fluid">
-            <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav"
-                aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
-                <span class="navbar-toggler-icon"></span>
-            </button>
-            <div class="collapse navbar-collapse" id="navbarNav">
-                <ul class="navbar-nav">
-                    <li class="nav-item">
-                        <a class="nav-link" href="/admin">前一页</a>
-                    </li>
-                </ul>
-            </div>
-        </div>
-    </nav>
-
-    {% for message in get_flashed_messages() %}
-      <div class="alert alert-success" role="alert">
-        {{ message }}
-      </div>
-    {% endfor %}
-
-    <div class="card" style="margin-top:24px;">
-        {% if tips %}
-        <div class="alert alert-success" role="alert">
-            {{ tips }}
-        </div>
-        {% endif %}
-        <div class="card-content">
-            <h5 style="margin-top: 10px;padding-left: 10px;">录入文章</h5>
-            <form action="" method="post" class="container mb-3">
-                <div class="mb-3">
-                    <label class="form-label">文章内容</label>
-                    <textarea id="content" name="content" class="form-control" rows="8" placeholder="首行是标题，后面是正文。"></textarea>
-                    <label class="form-label">文章来源</label>
-                    <textarea id="source" name="source" class="form-control" placeholder="推荐格式：Source: HTTP 链接。"></textarea>
-                    <label class="form-label">文章等级</label>
-                    <select id="level" class="form-select" name="level">
-                        <option value="1">1</option>
-                        <option value="2">2</option>
-                        <option value="3">3</option>
-                        <option selected value="4">4</option>
-                    </select>
-                    <label class="form-label">文章问题</label>
-                    <textarea id="question" name="question" class="form-control" rows="6" placeholder="格式：&#x0a; QUESTION&#x0a; What?&#x0a;&#x0a; ANSWER&#x0a; Apple. "></textarea>
-                </div>
-                <input type="submit" value="保存" class="btn btn-outline-primary">
-            </form>
-        </div>
-    </div>
-
-    <div class="card" style="margin-top:24px;">
-        <h5 style="margin-top: 10px;padding-left: 10px;">文章列表</h5>
-        <div class="list-group">
-            {% for text in text_list %}
-            <div class="list-group-item list-group-item-action" aria-current="true">
-                <div>
-                    <a type="button" href="/admin/article?delete_id={{text.article_id}}" class="btn btn-outline-danger btn-sm">删除</a>
-                </div>
-                <div class="d-flex w-100 justify-content-between">
-                    <h5 class="mb-1">{{ text.title }}</h5>
-                </div>
-                <div><small>{{ text.source }}</small></div>
-                <div class="d-flex w-100 justify-content-between">
-                    <small>Level: {{text.level }}</small>
-                    <small>Date: {{ text.date }}</small>
-                </div>
-                {{ text.content | safe }}
-            </div>
-            {% endfor %}
-        </div>
-    </div>
-    <div style="margin:20px 0;">
-        <ul class="pagination pagination-sm justify-content-center">
-            <li class="page-item"><a class="page-link" href="/admin/article?page={{ cur_page - 1 }}&size={{ page_size }}">Previous</a>
-            </li>
-            {% for i in range(1, article_number // page_size + (article_number % page_size > 0) + 1) %}
-            {% if cur_page == i %}
-            <li class="page-item active"><a class="page-link" href="/admin/article?page={{ i }}&size={{ page_size }}">{{ i }}</a>
-            </li>
-            {% else %}
-            <li class="page-item"><a class="page-link" href="/admin/article?page={{ i }}&size={{ page_size }}">{{ i }}</a></li>
-            {% endif %}
-            {% endfor %}
-            <li class="page-item"><a class="page-link" href="/admin/article?page={{ cur_page + 1 }}&size={{ page_size }}">Next</a>
-            </li>
-        </ul>
-    </div>
-</body>
-
-</html>

app/templates/admin_manage_user.html

@@ -1,99 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport"
-        content="width=device-width, initial-scale=1.0, minimum-scale=0.5, maximum-scale=3.0, user-scalable=yes" />
-    <meta name="format-detection" content="telephone=no" />
-    <link href="../static/css/bootstrap.css" rel="stylesheet">
-    <script src="../static/js/jquery.js"></script>
-</head>
-
-<body class="container" style="width: 800px; margin: auto; margin-top:24px;">
-    <nav class="navbar navbar-expand-lg bg-light">
-        <div class="container-fluid">
-            <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav"
-                aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
-                <span class="navbar-toggler-icon"></span>
-            </button>
-            <div class="collapse navbar-collapse" id="navbarNav">
-                <ul class="navbar-nav">
-                    <li class="nav-item">
-                        <a class="nav-link" href="/admin">前一页</a>
-                    </li>
-                </ul>
-            </div>
-        </div>
-    </nav>
-
-    {% for message in get_flashed_messages() %}
-      <div class="alert alert-success" role="alert">
-        {{ message }}
-      </div>
-    {% endfor %}
-
-    <div class="card" style="margin-top:24px;">
-        <h5 style="margin-top: 10px;padding-left: 10px;">重置选中用户的信息</h5>
-        <form id="user_form" action="" method="post" class="container mb-3">
-            <div>
-                <label class="form-label" style="padding-top: 10px;">用户</label>
-                <select onchange="loadUserExpiryDate()" id="username" name="username" class="form-select" aria-label="Default select example">
-                    <option selected>选择用户</option>
-                    {% for user in user_list %}
-                    <option value="{{ user.name }}">{{ user.name }}</option>
-                    {% endfor %}
-                </select>
-
-                <label class="form-label" style="padding-top: 10px;">修改密码</label>
-                <div>
-                    <button type="button" id="reset_pwd_btn" class="btn btn-outline-success">获取12位随机密码</button>
-                    <input style="margin-left: 20px;border: 0; font-size: 20px;" name="new_password"
-                        id="new_password"></input>
-                </div>
-
-                <label class="form-label" style="padding-top: 10px;">过期时间</label>
-                <div>
-                    <input type="date" id="expiry_date" name="expiry_time" placeholder="YYYY-MM-DD" pattern="yyyyMMdd">
-                </div>
-
-            </div>
-
-            <button style="margin-top: 50px;" type="submit" class="btn btn-primary">更新用户信息</button>
-        </form>
-    </div>
-</body>
-
-
-<script>
-    // 密码生成器
-    function generatePassword(length) {
-        const charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^*()_+~`|}{[]\:;?,./-=";
-        let password = "";
-        for (let i = 0; i < length; i++) {
-            password += charset.charAt(Math.floor(Math.random() * charset.length));
-        }
-        return password;
-    }
-    document.getElementById("reset_pwd_btn").addEventListener("click", () => {
-        // 生成12位随机密码
-        let pwd = generatePassword(12)
-        document.getElementById("new_password").value = pwd
-    })
-    // 选择用户后更新其过期时间
-    function loadUserExpiryDate() {
-        const cur_user = $('#username').val();
-        $.ajax({
-            type: "GET",
-            url: `/admin/expiry?username=${cur_user}`,
-            success: function(resp) {
-                const year = resp.substr(0,4);
-                const month = resp.substr(4,2);
-                const day = resp.substr(6,2);
-                document.getElementById("expiry_date").value = year + '-' + month + '-' + day
-            }
-        })
-    }
-</script>
-
-</html>

app/templates/login.html

@@ -1,47 +1,28 @@
 {% block body %}
 {% if session['logged_in'] %}
 
-你已登录 <a href="/{{ session['username'] }}">{{ session['username'] }}</a>。 登出点击<a href="/logout">这里</a>。
+You're logged in already!
 
 {% else %}
 <meta charset="utf-8" name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=0.5, maximum-scale=3.0, user-scalable=yes" />
 <link rel="stylesheet" href="static/css/login_service.css">
-<script src="static/js/jquery.js"></script>
-<script>
-    function login(){
-        let username = $("#username").val();
-        let password = $("#password").val();
-        if (username === "" || password === ""){
-            alert('输入不能为空!');
-            return false;
-        }
-        $.post(
-            "/login", {'username': username, 'password': password},
-            function (response) {
-                if (response.status === '0') {
-                    alert('无法通过验证。');
-                    window.location.href = "/login";
-                } else if (response.status === '1') {
-                    window.location.href = "/"+username+"/userpage";
-                }
-            }
-        )
-        return false;
-    }
-</script>
+
 <div class="container">
 
   <section class="signin-heading">
     <h1>Sign In</h1>
   </section>
 
-  <input type="text" placeholder="用户名" class="username" id="username">
-  <input type="password" placeholder="密码" class="password"  id="password">
-  <button type="button" class="btn" onclick="login()">登录</button>
-  <a class="signup" href="/signup">注册</a>
+  <form action="/login" method="POST">
+    <input type="text" placeholder="用户名" class="username" name="username" required>
+    <input type="password" placeholder="密码" class="password"  name="password" required>
+    <button type="submit" class="btn">登录</button>
+  </form>
 
 </div>
 
+<a href="/signup" class="signup">注册</a>
+
 {% endif %}
 {% endblock %}
 

app/templates/mainpage_get.html

@@ -23,13 +23,10 @@
     <div class="container-fluid">
         <p><b><font size="+3" color="red">English Pal - Learn English smartly!</font></b></p>
         {% if session['logged_in'] %}
-            <a href="/{{ session['username'] }}/userpage">{{ session['username'] }}</a>
-            {% if session['username'] == admin_name %}
-            <a href="/admin">管理</a></p>
-            {% endif %}
+            <a href="/{{session['username']}}">{{session['username']}}</a></p>
         {% else %}
             <p><a href="/login">登录</a>  <a href="/signup">注册</a> <a href="/static/usr/instructions.html">使用说明</a></p >
-            <p><b> {{ random_ads }}。 <a href="/signup">试试</a>吧！</b></p>
+            <p><b>{{random_ads|safe}}</b></p>
         {% endif %}
         <div class="alert alert-success" role="alert">共有文章 <span class="badge bg-success"> {{number_of_essays}} </span> 篇</div>
         <p>粘贴1篇文章 (English only)</p>

app/templates/reset.html

@@ -2,38 +2,6 @@
     <meta charset="utf-8" name="viewport"
           content="width=device-width, initial-scale=1.0, minimum-scale=0.5, maximum-scale=3.0, user-scalable=yes"/>
     <link rel="stylesheet" href="static/css/login_service.css">
-    <script src="static/js/jquery.js"></script>
-    <script>
-        function reset() {
-            let old_password = $("#old-password").val();
-            let new_password = $("#new-password").val();
-            let re_new_password = $("#re-new-password").val();
-            if (old_password === "" || new_password === "" || re_new_password === ""){
-                alert('输入不能为空!');
-                return false;
-            }
-            if (new_password !== re_new_password) {
-                alert('新密码不匹配，请重新输入');
-                return false;
-            }
-            if (new_password.length < 4) {
-                alert('密码过于简单。(密码长度至少4位)');
-                return false;
-            }
-            $.post("/reset", {'old-password': old_password, 'new-password': new_password},
-                function (response) {
-                    if (response.status === '1') {
-                        alert('密码修改成功，请重新登录。');
-                        window.location.href = "/login";
-                    } else if (response.status === '2') {
-                        alert('密码修改失败');
-                        window.location.href = "/reset";
-                    }
-                }
-            )
-            return false;
-        }
-    </script>
 
     <div class="container">
 
@@ -41,11 +9,14 @@
             <h1>Reset Password</h1>
         </section>
 
-        <input type="password" placeholder="原密码" class="old-password" name="old-password" id="old-password"/>
-        <input type="password" placeholder="新密码" class="new-password" name="new-password" id="new-password"/>
-        <input type="password" placeholder="确认新密码" class="re-new-password" name="re-new-password" id="re-new-password"/>
-        <button id="submit" class="btn" onclick="reset()">提交</button>
-        <button class="btn" onclick="window.location.href='/{{ username }}/userpage'">放弃修改</button>
+        <form action="/reset" method="POST">
+            <input type="password" placeholder="原密码" class="old-password" name="old-password" required>
+            <input type="password" placeholder="新密码" class="new-password" name="new-password" required>
+            <input type="password" placeholder="确认新密码" class="re-new-password" name="re-new-password" required>
+            <input type="submit" name="submit" class="btn" value="提交"/>
+            <input type="button" name="submit" class="btn" value="放弃修改"
+                   onclick="window.location.href='/{{ username }}'"/>
+        </form>
 
     </div>
 {% endblock %}

app/templates/signup.html

@@ -6,47 +6,6 @@ You're logged in already! <a href="/logout">Logout</a>.
 {% else %}
 <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=0.5, maximum-scale=3.0, user-scalable=yes" />
 <link rel="stylesheet" href="static/css/login_service.css">
-<script src="static/js/jquery.js"></script>
-    <script>
-        function signup() {
-            let username = $("#username").val();
-            let password = $("#password").val();
-            let password2 = $("#password2").val();
-            if (username === "" || password === "" || password2 === ""){
-                alert('输入不能为空!');
-                return false;
-            }
-            if (password !== password2) {
-                alert('确认密码与输入密码不一致！');
-                return false;
-            }
-            if (password.length < 4) {
-                alert('密码过于简单。(密码长度至少4位)');
-                return false;
-            }
-            $.post("/signup", {'username': username, 'password': password},
-                function (response) {
-                    if (response.status === '0') {
-                        alert('用户名'+username+'已经被注册。');
-                        window.location.href = "/signup";
-                    } else if (response.status === '1') {
-                        alert('用户名密码验证失败。');
-                        window.location.href = "/signup";
-                    } else if (response.status === '2') {
-                        let f = confirm("恭喜，你已成功注册，你的用户名是"+username+'.\n点击“确认”开始使用，或点击“取消”返回首页');
-                        if (f) {
-                            window.location.href = '/'+username+'/userpage';
-                        } else {
-                            window.location.href = '/';
-                        }
-                    } else if (response.status === '3') {
-                        alert(response.warn);
-                    }
-                }
-            )
-            return false;
-        }
-    </script>
 <p>{{ get_flashed_messages()[0] | safe }}</p>
 
 
@@ -56,10 +15,12 @@ You're logged in already! <a href="/logout">Logout</a>.
     <h1>Sign Up</h1>
   </section>
 
-  <p><input type="username" id="username" placeholder="输入用户名" class="username"></p>
-  <p><input type="password" id="password" placeholder="输入密码" class="password"></p>
-  <p><input type="password" id="password2" placeholder="确认密码" class="password" ></p>
-  <button type="button" class="btn" onclick="signup()">注册</button>
+  <form action="/signup" method="POST">
+    <p><input type="username" name="username" placeholder="输入用户名" required="required" class="username"></p>
+    <p><input type="password" name="password" placeholder="输入密码" required="required" class="password"></p>
+    <p><input type="password" name="password2" placeholder="确认密码" required="required" class="password" ></p>
+    <button type="submit" class="btn">注册</button>
+  </form>
 
 </div>
   

app/templates/userpage_get.html

@@ -37,51 +37,20 @@
 <body>
 <div class="container-fluid">
     <p><b>English Pal for <font id="username" color="red">{{ username }}</font></b>
-
-        {% if username ==  admin_name %}
-        <a class="btn btn-secondary" href="/admin" role="button" onclick="stopRead()">管理</a>
-        {% endif %}
-        <a id="quit" class="btn btn-secondary" href="/logout" role="button" onclick="stopRead()">退出</a>
-        <a class="btn btn-secondary" href="/reset" role="button" onclick="stopRead()">重设密码</a>
-
+        <a class="btn btn-secondary" href="/logout" role="button">退出</a>
+        <a class="btn btn-secondary" href="/reset" role="button">重设密码</a>
     </p>
-{#    {% for message in flashed_messages %}#} {# 根据user_service.userpage,取消了参数flashed_messages，因此注释了这段代码 #}
-{#        <div class="alert alert-warning" role="alert">Congratulations! {{ message }}</div>#}
-{#    {% endfor %}#}
+    {{ flashed_messages|safe }}
 
-        <button class="btn btn-success" id="load_next_article" onclick="load_next_article()"> 下一篇 Next Article </button>
-        <button class="btn btn-success" id="load_pre_article" onclick="load_pre_article()" > 上一篇 Previous Article </button>
+    <a class="btn btn-success" href="/{{ username }}/reset" role="button"> 下一篇 Next Article </a>    
+    {% if session.get('articleID') != session.get('old_articleID') %}
+        {% if session.get('old_articleID') != None %}
+            <a class="btn btn-success" href="/{{ username }}/back" role="button"> 上一篇 Previous Article </a>
+        {% endif%}
+    {% endif %}
 
     <p><b>阅读文章并回答问题</b></p>
-    <div id="text-content">
-        <div id="found">
-            <div class="alert alert-success" role="alert">According to your word list, your level is <span class="badge bg-success" id="user-level">{{ today_article["user_level"] }}</span>  and we have chosen an article with a difficulty level of <span class="badge bg-success" id="text_level">{{ today_article["text_level"] }}</span> for you.</div>
-                <p class="text-muted" id="date">Article added on: {{ today_article["date"] }}</p><br/>
-            <div class="p-3 mb-2 bg-light text-dark"><br/>
-            <p class="display-5" id="article_title">{{ today_article["article_title"] }}</p><br/>
-            <p class="lead"><font id="article" size=2>{{ today_article["article_body"] }}</font></p><br/>
-            <p><small class="text-muted" id="source">{{ today_article['source'] }}</small></p><br/>
-            <p><b id="question">{{ today_article['question'] }}</b></p><br/>
-                <script type="text/javascript">
-                    function toggle_visibility(id) { {# https://css-tricks.com/snippets/javascript/showhide-element/#}
-                        const e = document.getElementById(id);
-                        if(e.style.display === 'block')
-                            e.style.display = 'none';
-                        else
-                            e.style.display = 'block';
-                    }
-                </script>
-                <button onclick="toggle_visibility('answer');">ANSWER</button>
-                <div id="answer" style="display:none;">{{ today_article['answer'] }}</div><br/>
-            </div>
-        </div>
-        <div class="alert alert-success" role="alert" id="not_found" style="display:none;">
-            <p class="text-muted"><span class="badge bg-success">Notes:</span><br>No article is currently available for you. You can try again a few times or mark new words in the passage to improve your level.</p>
-        </div>
-        <div class="alert alert-success" role="alert" id="read_all" style="display:none;">
-            <p class="text-muted"><span class="badge bg-success">Notes:</span><br>You've read all the articles.</p>
-        </div>
-    </div>
+    <div id="text-content">{{ today_article|safe }}</div>
 
     <input type="checkbox" onclick="toggleHighlighting()" checked/>生词高亮
     <input type="checkbox" onclick="onReadClick()" checked/>大声朗读
@@ -91,11 +60,11 @@
             <div class="sliderValue">
                 <span id="rangeValue">1×</span>
             </div>
-            <input type="range" id="rangeComponent" min="0.5" max="2" value="1" step="0.25"/>
+        <input type="range" id="rangeComponent" min="0.5" max="2" value="1" step="0.25" "/>
         </div>
     </div>    
     <p><b>收集生词吧</b> （可以在正文中划词，也可以复制黏贴）</p>
-    <form method="post" action="/{{ username }}/userpage">
+    <form method="post" action="/{{ username }}">
         <textarea name="content" id="selected-words" rows="10" cols="120"></textarea><br/>
         <input type="submit" value="把生词加入我的生词库"/>
         <input type="reset" value="清除"/>
@@ -145,67 +114,6 @@
         <script src="{{ js }}"></script>
     {% endfor %}
 {% endif %}
-<script type="text/javascript">
-    function load_next_article(){
-        $.ajax({
-            url: '/get_next_article/{{username}}',
-            dataType: 'json',
-            success: function(data) {
-                // 更新页面内容
-                if(data['today_article']){
-                    update(data['today_article']);
-                    check_pre(data['visited_articles']);
-                    check_next(data['result_of_generate_article']);
-                }
-            }
-        });
-    }
-    function load_pre_article(){
-        $.ajax({
-            url: '/get_pre_article/{{username}}',
-            dataType: 'json',
-            success: function(data) {
-                // 更新页面内容
-                if(data['today_article']){
-                    update(data['today_article']);
-                    check_pre(data['visited_articles']);
-                }
-            }
-        });
-    }
-    function update(today_article){
-        $('#user-level').html(today_article['user_level']);
-        $('#text_level').html(today_article["text_level"]);
-        $('#date').html('Article added on: '+today_article["date"]);
-        $('#article_title').html(today_article["article_title"]);
-        $('#article').html(today_article["article_body"]);
-        $('#source').html(today_article['source']);
-        $('#question').html(today_article["question"]);
-        $('#answer').html(today_article["answer"]);
-    }
-<!-- 检查是否存在上一篇或下一篇，不存在则对应按钮隐藏-->
-    function check_pre(visited_articles){
-        if((visited_articles=='')||(visited_articles['index']<=0)){
-            $('#load_pre_article').hide();
-        }else{
-            $('#load_pre_article').show();
-        }
-    }
-    function check_next(result_of_generate_article){
-        if(result_of_generate_article == "found"){
-            $('#found').show();$('#not_found').hide();
-            $('#read_all').hide();
-        }else if(result_of_generate_article == "not found"){
-            $('#found').hide();
-            $('#not_found').show();
-            $('#read_all').hide();
-        }else{
-            $('#found').hide();
-            $('#not_found').hide();
-            $('#read_all').show();
-        }
-    }
-</script>
 </body>
 <style>
     mark {

app/user_service.py

@@ -1,5 +1,5 @@
 from datetime import datetime
-from admin_service import ADMIN_NAME
+
 from flask import *
 
 # from app import Yaml
@@ -21,46 +21,33 @@ userService = Blueprint("user_bp", __name__)
 path_prefix = '/var/www/wordfreq/wordfreq/'
 path_prefix = './'  # comment this line in deployment
 
-@userService.route("/get_next_article/<username>",methods=['GET','POST'])
-def get_next_article(username):
-    user_freq_record = path_prefix + 'static/frequency/' + 'frequency_%s.pickle' % (username)
+
+@userService.route("/<username>/reset", methods=['GET', 'POST'])
+def user_reset(username):
+    '''
+    用户界面
+    :param username: 用户名
+    :return: 返回页面内容
+    '''
     session['old_articleID'] = session.get('articleID')
     if request.method == 'GET':
-        visited_articles = session.get("visited_articles")
-        if visited_articles['article_ids'][-1] == "null":  # 如果当前还是“null”，则将“null”pop出来,无需index+=1
-            visited_articles['article_ids'].pop()
-        else:  # 当前不为“null”，直接 index+=1
-            visited_articles["index"] += 1
-        session["visited_articles"] = visited_articles
-        visited_articles, today_article, result_of_generate_article = get_today_article(user_freq_record, session.get('visited_articles'))
-        data = {
-            'visited_articles': visited_articles,
-            'today_article': today_article,
-            'result_of_generate_article': result_of_generate_article
-        }
+        session['articleID'] = None
+        return redirect(url_for('user_bp.userpage', username=username))
     else:
         return 'Under construction'
-    return json.dumps(data)
 
-@userService.route("/get_pre_article/<username>",methods=['GET'])
-def get_pre_article(username):
-    user_freq_record = path_prefix + 'static/frequency/' + 'frequency_%s.pickle' % (username)
+@userService.route("/<username>/back", methods=['GET'])
+def user_back(username):
+    '''
+    用户界面
+    :param username: 用户名
+    :return: 返回页面内容
+    '''
     if request.method == 'GET':
-        visited_articles = session.get("visited_articles")
-        if(visited_articles["index"]==0):
-            data=''
-        else:
-            visited_articles["index"] -= 1  # 上一篇，index-=1
-            if visited_articles['article_ids'][-1] == "null":  # 如果当前还是“null”，则将“null”pop出来
-                visited_articles['article_ids'].pop()
-            session["visited_articles"] = visited_articles
-            visited_articles, today_article, result_of_generate_article = get_today_article(user_freq_record, session.get('visited_articles'))
-            data = {
-                'visited_articles': visited_articles,
-                'today_article': today_article,
-                'result_of_generate_article':result_of_generate_article
-            }
-        return json.dumps(data)
+        session['articleID'] = session.get('old_articleID')
+        return redirect(url_for('user_bp.userpage', username=username))
+
+
 
 @userService.route("/<username>/<word>/unfamiliar", methods=['GET', 'POST'])
 def unfamiliar(username, word):
@@ -102,12 +89,11 @@ def deleteword(username, word):
     '''
     user_freq_record = path_prefix + 'static/frequency/' + 'frequency_%s.pickle' % (username)
     pickle_idea2.deleteRecord(user_freq_record, word)
-    # 模板userpage_get.html中删除单词是异步执行，而flash的信息后续是同步执行的，所以注释这段代码；同时如果这里使用flash但不提取信息，则会影响 signup.html的显示。bug复现：删除单词后，点击退出，点击注册，注册页面就会出现提示信息
-    # flash(f'{word} is no longer in your word list.')
+    flash(f'<strong>{word}</strong> is no longer in your word list.')
     return "success"
 
 
-@userService.route("/<username>/userpage", methods=['GET', 'POST'])
+@userService.route("/<username>", methods=['GET', 'POST'])
 def userpage(username):
     '''
     用户界面
@@ -144,21 +130,20 @@ def userpage(username):
         words = ''
         for x in lst3:
             words += x[0] + ' '
-        visited_articles, today_article, result_of_generate_article = get_today_article(user_freq_record, session.get('visited_articles'))
-        session['visited_articles'] = visited_articles
-        # 通过 today_article，加载前端的显示页面
         return render_template('userpage_get.html',
-                               admin_name=ADMIN_NAME,
                                username=username,
                                session=session,
-                               # flashed_messages=get_flashed_messages(), 仅有删除单词的时候使用到flash，而删除单词是异步执行，这里的信息提示是同步执行，所以就没有存在的必要了
-                               today_article=today_article,
-                               result_of_generate_article=result_of_generate_article,
+                               flashed_messages=get_flashed_messages_if_any(),
+                               today_article=get_today_article(user_freq_record, session['articleID']),
                                d_len=len(d),
                                lst3=lst3,
                                yml=Yaml.yml,
                                words=words)
 
+
+
+
+
 @userService.route("/<username>/mark", methods=['GET', 'POST'])
 def user_mark_word(username):
     '''
@@ -188,3 +173,15 @@ def get_time():
     '''
     return datetime.now().strftime('%Y%m%d%H%M')  # upper to minutes
 
+def get_flashed_messages_if_any():
+    '''
+    在用户界面显示黄色提示信息
+    :return: 包含HTML标签的提示信息
+    '''
+    messages = get_flashed_messages()
+    s = ''
+    for message in messages:
+        s += '<div class="alert alert-warning" role="alert">'
+        s += f'Congratulations! {message}'
+        s += '</div>'
+    return s

app/wordfreqCMD.py

@@ -70,7 +70,7 @@ def sort_in_ascending_order(lst):# 单词按频率降序排列
     return lst2
 
 
-def make_html_page(lst, fname):  # 只是在wordfreqCMD.py中的main函数中调用，所以不做修改
+def make_html_page(lst, fname):
     '''
     功能：把lst的信息存到fname中，以html格式。
     '''

build.sh

@@ -3,10 +3,6 @@
 DEPLOYMENT_DIR=/home/lanhui/englishpal2/EnglishPal
 cd $DEPLOYMENT_DIR
 
-# Install dependencies
-
-pip3 install -r requirements.txt
-
 # Stop service
 sudo docker stop EnglishPal
 sudo docker rm EnglishPal

requirements.txt

@@ -1,4 +1,3 @@
 Flask==1.1.2
 selenium==3.141.0
 PyYAML~=6.0
-pony==0.7.16