497 lines
22 KiB
Python
497 lines
22 KiB
Python
#! /usr/bin/python3
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# -*- coding: utf-8 -*-
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###########################################################################
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# Copyright 2019 (C) Hui Lan <hui.lan@cantab.net>
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# Written permission must be obtained from the author for commercial uses.
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###########################################################################
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from WordFreq import WordFreq
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from wordfreqCMD import youdao_link, sort_in_descending_order
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from UseSqlite import InsertQuery, RecordQuery
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import pickle_idea, pickle_idea2
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import os
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import random, glob
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from datetime import datetime
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from flask import Flask, request, redirect, render_template, url_for, session, abort, flash, get_flashed_messages
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from difficulty import get_difficulty_level, text_difficulty_level, user_difficulty_level
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app = Flask(__name__)
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app.secret_key = 'lunch.time!'
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path_prefix = '/var/www/wordfreq/wordfreq/'
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path_prefix = './' # comment this line in deployment
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def get_random_image(path):
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img_path = random.choice(glob.glob(os.path.join(path, '*.jpg')))
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return img_path[img_path.rfind('/static'):]
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def get_random_ads():
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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'])
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return ads + '。 <a href="/signup">试试</a>吧！'
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def total_number_of_essays():
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rq = RecordQuery(path_prefix + 'static/wordfreqapp.db')
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rq.instructions("SELECT * FROM article")
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rq.do()
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result = rq.get_results()
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return len(result)
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def load_freq_history(path):
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d = {}
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if os.path.exists(path):
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d = pickle_idea.load_record(path)
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return d
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def verify_user(username, password):
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rq = RecordQuery(path_prefix + 'static/wordfreqapp.db')
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rq.instructions_with_parameters("SELECT * FROM user WHERE name=? AND password=?", (username, password))
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rq.do_with_parameters()
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result = rq.get_results()
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return result != []
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def add_user(username, password):
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start_date = datetime.now().strftime('%Y%m%d')
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expiry_date = '20211230'
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rq = InsertQuery(path_prefix + 'static/wordfreqapp.db')
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rq.instructions("INSERT INTO user Values ('%s', '%s', '%s', '%s')" % (username, password, start_date, expiry_date))
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rq.do()
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def check_username_availability(username):
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rq = RecordQuery(path_prefix + 'static/wordfreqapp.db')
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rq.instructions("SELECT * FROM user WHERE name='%s'" % (username))
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rq.do()
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result = rq.get_results()
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return result == []
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def get_expiry_date(username):
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rq = RecordQuery(path_prefix + 'static/wordfreqapp.db')
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rq.instructions("SELECT expiry_date FROM user WHERE name='%s'" % (username))
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rq.do()
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result = rq.get_results()
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if len(result) > 0:
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return result[0]['expiry_date']
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else:
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return '20191024'
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def within_range(x, y, r):
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return x > y and abs(x - y) <= r
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def get_article_title(s):
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return s.split('\n')[0]
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def get_article_body(s):
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lst = s.split('\n')
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lst.pop(0) # remove the first line
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return '\n'.join(lst)
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def get_today_article(user_word_list, articleID):
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rq = RecordQuery(path_prefix + 'static/wordfreqapp.db')
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if articleID == None:
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rq.instructions("SELECT * FROM article")
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else:
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rq.instructions('SELECT * FROM article WHERE article_id=%d' % (articleID))
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rq.do()
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result = rq.get_results()
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# Choose article according to reader's level
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d1 = load_freq_history(path_prefix + 'static/frequency/frequency.p')
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d2 = load_freq_history(path_prefix + 'static/words_and_tests.p')
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d3 = get_difficulty_level(d1, d2)
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d = {}
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d_user = load_freq_history(user_word_list)
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user_level = user_difficulty_level(d_user, d3) # more consideration as user's behaviour is dynamic. Time factor should be considered.
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random.shuffle(result) # shuffle list
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d = random.choice(result)
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text_level = text_difficulty_level(d['text'], d3)
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if articleID == None:
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for reading in result:
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text_level = text_difficulty_level(reading['text'], d3)
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#print('TEXT_LEVEL %4.2f' % (text_level))
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if within_range(text_level, user_level, 0.5):
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d = reading
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break
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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)
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s += '<p class="text-muted">Article added on: %s</p>' % (d['date'])
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s += '<div class="p-3 mb-2 bg-light text-dark">'
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article_title = get_article_title(d['text'])
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article_body = get_article_body(d['text'])
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s += '<p class="display-3">%s</p>' % (article_title)
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s += '<p class="lead">%s</p>' % (article_body)
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s += '<p><small class="text-muted">%s</small></p>' % (d['source'])
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s += '<p><b>%s</b></p>' % (get_question_part(d['question']))
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s = s.replace('\n', '<br/>')
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s += '%s' % (get_answer_part(d['question']))
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s += '</div>'
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session['articleID'] = d['article_id']
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return s
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def appears_in_test(word, d):
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if not word in d:
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return ''
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else:
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return ','.join(d[word])
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def get_time():
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return datetime.now().strftime('%Y%m%d%H%M') # upper to minutes
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def get_question_part(s):
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s = s.strip()
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result = []
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flag = 0
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for line in s.split('\n'):
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line = line.strip()
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if line == 'QUESTION':
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result.append(line)
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flag = 1
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elif line == 'ANSWER':
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flag = 0
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elif flag == 1:
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result.append(line)
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return '\n'.join(result)
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def get_answer_part(s):
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s = s.strip()
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result = []
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flag = 0
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for line in s.split('\n'):
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line = line.strip()
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if line == 'ANSWER':
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flag = 1
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elif flag == 1:
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result.append(line)
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# https://css-tricks.com/snippets/javascript/showhide-element/
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js = '''
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<script type="text/javascript">
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function toggle_visibility(id) {
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var e = document.getElementById(id);
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if(e.style.display == 'block')
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e.style.display = 'none';
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else
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e.style.display = 'block';
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}
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</script>
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'''
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html_code = js
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html_code += '\n'
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html_code += '<button onclick="toggle_visibility(\'answer\');">ANSWER</button>\n'
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html_code += '<div id="answer" style="display:none;">%s</div>\n' % ('\n'.join(result))
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return html_code
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def get_flashed_messages_if_any():
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messages = get_flashed_messages()
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if messages == []:
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return ''
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s = '<ul class=flashes>'
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for message in messages:
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s += f'<li>{message}</li>'
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return s + '</ul>'
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@app.route("/<username>/reset", methods=['GET', 'POST'])
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def user_reset(username):
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if request.method == 'GET':
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session['articleID'] = None
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return redirect(url_for('userpage', username=username))
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else:
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return 'Under construction'
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@app.route("/mark", methods=['GET', 'POST'])
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def mark_word():
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if request.method == 'POST':
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d = load_freq_history(path_prefix + 'static/frequency/frequency.p')
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lst_history = pickle_idea.dict2lst(d)
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lst = []
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for word in request.form.getlist('marked'):
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lst.append((word, 1))
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d = pickle_idea.merge_frequency(lst, lst_history)
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pickle_idea.save_frequency_to_pickle(d, path_prefix + 'static/frequency/frequency.p')
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return redirect(url_for('mainpage'))
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else:
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return 'Under construction'
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@app.route("/", methods=['GET', 'POST'])
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def mainpage():
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if request.method == 'POST': # when we submit a form
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content = request.form['content']
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f = WordFreq(content)
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lst = f.get_freq()
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page = '<form method="post" action="/mark">\n'
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count = 1
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for x in lst:
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page += '<p><font color="grey">%d</font>: <a href="%s">%s</a> (%d) <input type="checkbox" name="marked" value="%s"></p>\n' % (count, youdao_link(x[0]), x[0], x[1], x[0])
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count += 1
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page += ' <input type="submit" value="确定并返回"/>\n'
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page += '</form>\n'
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# save history
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d = load_freq_history(path_prefix + 'static/frequency/frequency.p')
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lst_history = pickle_idea.dict2lst(d)
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d = pickle_idea.merge_frequency(lst, lst_history)
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pickle_idea.save_frequency_to_pickle(d, path_prefix + 'static/frequency/frequency.p')
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return page
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elif request.method == 'GET': # when we load a html page
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page = '''
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<html lang="zh">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=0.5, maximum-scale=3.0, user-scalable=yes" />
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<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
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<title>EnglishPal 英文单词高效记</title>
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</head>
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<body>
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'''
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page += '<div class="container-fluid">'
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page += '<p><b><font size="+3" color="red">English Pal - Learn English smartly!</font></b></p>'
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if session.get('logged_in'):
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page += ' <a href="%s">%s</a></p>\n' % (session['username'], session['username'])
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else:
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page += '<p><a href="/login">登录</a> <a href="/signup">成为会员</a> <a href="/static/usr/instructions.html">使用说明</a></p>\n'
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#page += '<p><img src="%s" width="400px" alt="advertisement"/></p>' % (get_random_image(path_prefix + 'static/img/'))
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page += '<p><b>%s</b></p>' % (get_random_ads())
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page += '<div class="alert alert-success" role="alert">共有文章 <span class="badge bg-success"> %d </span> 篇</div>' % (total_number_of_essays())
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page += '<p>粘帖1篇文章 (English only)</p>'
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page += '<form method="post" action="/">'
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page += ' <textarea name="content" rows="10" cols="120"></textarea><br/>'
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page += ' <input type="submit" value="get文章中的词频"/>'
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page += ' <input type="reset" value="清除"/>'
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page += '</form>'
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d = load_freq_history(path_prefix + 'static/frequency/frequency.p')
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if len(d) > 0:
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page += '<p><b>最常见的词</b></p>'
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for x in sort_in_descending_order(pickle_idea.dict2lst(d)):
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if x[1] <= 99:
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break
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page += '<a href="%s">%s</a> %d\n' % (youdao_link(x[0]), x[0], x[1])
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page += ' <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>'
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page += '</div>'
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page += '</body></html>'
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return page
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@app.route("/<username>/mark", methods=['GET', 'POST'])
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def user_mark_word(username):
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username = session[username]
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user_freq_record = path_prefix + 'static/frequency/' + 'frequency_%s.pickle' % (username)
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if request.method == 'POST':
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d = load_freq_history(user_freq_record)
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lst_history = pickle_idea2.dict2lst(d)
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lst = []
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for word in request.form.getlist('marked'):
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lst.append((word, [get_time()]))
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d = pickle_idea2.merge_frequency(lst, lst_history)
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pickle_idea2.save_frequency_to_pickle(d, user_freq_record)
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return redirect(url_for('userpage', username=username))
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else:
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return 'Under construction'
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@app.route("/<username>/<word>/unfamiliar", methods=['GET', 'POST'])
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def unfamiliar(username,word):
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user_freq_record = path_prefix + 'static/frequency/' + 'frequency_%s.pickle' % (username)
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pickle_idea.unfamiliar(user_freq_record,word)
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session['thisWord'] = word # 1. put a word into session
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session['time'] = 1
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return redirect(url_for('userpage', username=username))
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@app.route("/<username>/<word>/familiar", methods=['GET', 'POST'])
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def familiar(username,word):
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user_freq_record = path_prefix + 'static/frequency/' + 'frequency_%s.pickle' % (username)
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pickle_idea.familiar(user_freq_record,word)
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session['thisWord'] = word # 1. put a word into session
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session['time'] = 1
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return redirect(url_for('userpage', username=username))
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@app.route("/<username>/<word>/del", methods=['GET', 'POST'])
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def deleteword(username,word):
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user_freq_record = path_prefix + 'static/frequency/' + 'frequency_%s.pickle' % (username)
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pickle_idea2.deleteRecord(user_freq_record,word)
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flash(f'Congratulations! <strong>{word}</strong> is no longer in your word list.')
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return redirect(url_for('userpage', username=username))
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@app.route("/<username>", methods=['GET', 'POST'])
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def userpage(username):
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if not session.get('logged_in'):
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return '<p>请先<a href="/login">登录</a>。</p>'
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user_expiry_date = session.get('expiry_date')
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if datetime.now().strftime('%Y%m%d') > user_expiry_date:
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return '<p>账号 %s 过期。</p><p>为了提高服务质量，English Pal 收取会员费用， 每天0元。</p> <p>请决定你要试用的时间长度，扫描下面支付宝二维码支付。 支付时请注明<i>English Pal Membership Fee</i>。 我们会于12小时内激活账号。</p><p><img src="static/donate-the-author-hidden.jpg" width="120px" alt="支付宝二维码" /></p><p>如果有问题，请加开发者微信 torontohui。</p> <p><a href="/logout">登出</a></p>' % (username)
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username = session.get('username')
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user_freq_record = path_prefix + 'static/frequency/' + 'frequency_%s.pickle' % (username)
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if request.method == 'POST': # when we submit a form
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content = request.form['content']
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f = WordFreq(content)
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lst = f.get_freq()
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page = '<meta charset="UTF8">'
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page += '<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=0.5, maximum-scale=3.0, user-scalable=yes" />'
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page += '<p>勾选不认识的单词</p>'
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page += '<form method="post" action="/%s/mark">\n' % (username)
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page += ' <input type="submit" name="add-btn" value="加入我的生词簿"/>\n'
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count = 1
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words_tests_dict = pickle_idea.load_record(path_prefix + 'static/words_and_tests.p')
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for x in lst:
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page += '<p><font color="grey">%d</font>: <a href="%s" title="%s">%s</a> (%d) <input type="checkbox" name="marked" value="%s"></p>\n' % (count, youdao_link(x[0]), appears_in_test(x[0], words_tests_dict), x[0], x[1], x[0])
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count += 1
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page += '</form>\n'
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return page
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elif request.method == 'GET': # when we load a html page
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page = '<meta charset="UTF8">\n'
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page += '<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=0.5, maximum-scale=3.0, user-scalable=yes" />\n'
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page += '<meta name="format-detection" content="telephone=no" />\n' # forbid treating numbers as cell numbers in smart phones
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page += '<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">'
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page += '<title>EnglishPal Study Room for %s</title>' % (username)
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page += '<div class="container-fluid">'
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page += '<p><b>English Pal for <font color="red">%s</font></b> <a class="btn btn-secondary" href="/logout" role="button">登出</a></p>' % (username)
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page += get_flashed_messages_if_any()
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page += '<p><b>阅读文章并回答问题</b></p>\n'
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page += '<p><a class="btn btn-success" href="/%s/reset" role="button"> 下一篇 Next Article </a></p>' % (username)
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page += '<div id="text-content">%s</div>' % (get_today_article(user_freq_record, session['articleID']))
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page += '<p><b>收集生词吧</b> （可以在正文中划词，也可以复制黏贴）</p>'
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page += '<form method="post" action="/%s">' % (username)
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page += ' <textarea name="content" id="selected-words" rows="10" cols="120"></textarea><br/>'
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page += ' <input type="submit" value="get 所有词的频率"/>'
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page += ' <input type="reset" value="清除"/>'
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page += '</form>\n'
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page += '''
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<script>
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function getWord(){
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var word = window.getSelection?window.getSelection():document.selection.createRange().text;
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return word;
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}
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function fillinWord(){
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var element = document.getElementById("selected-words");
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element.value = element.value + " " + getWord();
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}
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document.getElementById("text-content").addEventListener("click", fillinWord, false);
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document.getElementById("text-content").addEventListener("touchstart", fillinWord, false);
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</script>
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'''
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if session.get('thisWord'):
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page += '''
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<script type="text/javascript">
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//point to the anchor in the page whose id is aaa if it exists
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window.onload = function(){
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var element = document.getElementsByName("aaa");
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if (element != null)
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document.getElementsByName("aaa")[0].scrollIntoView(true);
|
||
}
|
||
</script>
|
||
'''
|
||
|
||
d = load_freq_history(user_freq_record)
|
||
if len(d) > 0:
|
||
page += '<p><b>我的生词簿</b></p>'
|
||
lst = pickle_idea2.dict2lst(d)
|
||
lst2 = []
|
||
for t in lst:
|
||
lst2.append((t[0], len(t[1])))
|
||
for x in sort_in_descending_order(lst2):
|
||
word = x[0]
|
||
freq = x[1]
|
||
if session.get('thisWord') == x[0] and session.get('time') == 1:
|
||
page += '<a name="aaa"></a>' # 3. anchor
|
||
session['time'] = 0 # discard anchor
|
||
if isinstance(d[word], list): # d[word] is a list of dates
|
||
if freq > 1:
|
||
page += '<p class="new-word"> <a class="btn btn-light" href="%s" role="button">%s</a>(<a title="%s">%d</a>) <a class="btn btn-success" href="%s/%s/familiar" role="button">熟悉</a> <a class="btn btn-warning" href="%s/%s/unfamiliar" role="button">不熟悉</a> <a class="btn btn-danger" href="%s/%s/del" role="button">删除</a> </p>\n' % (youdao_link(word), word, '; '.join(d[word]), freq,username, word,username,word, username,word)
|
||
else:
|
||
page += '<p class="new-word"> <a class="btn btn-light" href="%s" role="button">%s</a>(<a title="%s">%d</a>) <a class="btn btn-success" href="%s/%s/familiar" role="button">熟悉</a> <a class="btn btn-warning" href="%s/%s/unfamiliar" role="button">不熟悉</a> <a class="btn btn-danger" href="%s/%s/del" role="button">删除</a> </p>\n' % (youdao_link(word), word, '; '.join(d[word]), freq,username, word,username,word, username,word)
|
||
elif isinstance(d[word], int): # d[word] is a frequency. to migrate from old format.
|
||
page += '<a href="%s">%s</a>%d\n' % (youdao_link(word), word, freq)
|
||
page += '<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>'
|
||
page += '</div>'
|
||
return page
|
||
|
||
### Sign-up, login, logout ###
|
||
@app.route("/signup", methods=['GET', 'POST'])
|
||
def signup():
|
||
if request.method == 'GET':
|
||
return render_template('signup.html')
|
||
elif request.method == 'POST':
|
||
username = request.form['username']
|
||
password = request.form['password']
|
||
|
||
available = check_username_availability(username)
|
||
if not available:
|
||
flash('用户名 %s 已经被注册。' % (username))
|
||
return render_template('signup.html')
|
||
elif len(password.strip()) < 4:
|
||
return '密码过于简单。'
|
||
else:
|
||
add_user(username, password)
|
||
verified = verify_user(username, password)
|
||
if verified:
|
||
session['logged_in'] = True
|
||
session[username] = username
|
||
session['username'] = username
|
||
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 '用户名密码验证失败。'
|
||
|
||
|
||
@app.route("/login", methods=['GET', 'POST'])
|
||
def login():
|
||
if request.method == 'GET':
|
||
if not session.get('logged_in'):
|
||
return render_template('login.html')
|
||
else:
|
||
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':
|
||
# check database and verify user
|
||
username = request.form['username']
|
||
password = request.form['password']
|
||
verified = verify_user(username, password)
|
||
if verified:
|
||
session['logged_in'] = True
|
||
session[username] = username
|
||
session['username'] = username
|
||
user_expiry_date = get_expiry_date(username)
|
||
session['expiry_date'] = user_expiry_date
|
||
session['articleID'] = None
|
||
return redirect(url_for('userpage', username=username))
|
||
else:
|
||
return '无法通过验证。'
|
||
|
||
|
||
@app.route("/logout", methods=['GET', 'POST'])
|
||
def logout():
|
||
session['logged_in'] = False
|
||
return redirect(url_for('mainpage'))
|
||
|
||
|
||
if __name__ == '__main__':
|
||
#app.secret_key = os.urandom(16)
|
||
#app.run(debug=False, port='6000')
|
||
app.run(debug=True)
|
||
#app.run(debug=True, port='6000')
|
||
#app.run(host='0.0.0.0', debug=True, port='6000')
|
||
|