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Django-simple-captcha驗(yàn)證碼包使用方法詳解

瀏覽:18日期:2024-09-16 16:30:49

django-simple-captcha是django的驗(yàn)證碼包,非常簡(jiǎn)單實(shí)用,這次記錄的是如何點(diǎn)擊驗(yàn)證碼后刷新驗(yàn)證碼,因?yàn)檫@個(gè)功能官方文檔并沒(méi)有詳細(xì)給出。

django-simple-captcha官方文檔:http://django-simple-captcha.readthedocs.io/en/latest/

django-simple-captcha的github網(wǎng)址:https://github.com/mbi/django-simple-captcha

開(kāi)始

1.安裝 pip install django-simple-captcha, pip install Pillow

2.將captcha 加入 settings.py 的 INSTALLED_APPS

3.運(yùn)行 python manage.py makemigrations 和 python manage.py migrate

4.url路由加入urls.py的urlpatterns

urlpatterns = [ path(’captcha/’, include(’captcha.urls’)), # 圖片驗(yàn)證碼 路由 path(’refresh_captcha/’, views.refresh_captcha), # 刷新驗(yàn)證碼,ajax path(’test/’,IndexView.as_view()), #get與post請(qǐng)求路徑]

5.在views.py中加入以下代碼

from django.shortcuts import renderfrom django.views.generic import Viewfrom captcha.models import CaptchaStorefrom captcha.helpers import captcha_image_urlfrom django.http import HttpResponseimport json# 創(chuàng)建驗(yàn)證碼def captcha(): hashkey = CaptchaStore.generate_key() # 驗(yàn)證碼答案 image_url = captcha_image_url(hashkey) # 驗(yàn)證碼地址 captcha = {’hashkey’: hashkey, ’image_url’: image_url} return captcha#刷新驗(yàn)證碼def refresh_captcha(request): return HttpResponse(json.dumps(captcha()), content_type=’application/json’)# 驗(yàn)證驗(yàn)證碼def jarge_captcha(captchaStr, captchaHashkey): if captchaStr and captchaHashkey: try: # 獲取根據(jù)hashkey獲取數(shù)據(jù)庫(kù)中的response值 get_captcha = CaptchaStore.objects.get(hashkey=captchaHashkey) if get_captcha.response == captchaStr.lower(): # 如果驗(yàn)證碼匹配return True except: return False else: return Falseclass IndexView(View): def get(self, request): hashkey = CaptchaStore.generate_key() # 驗(yàn)證碼答案 image_url = captcha_image_url(hashkey) # 驗(yàn)證碼地址 print(hashkey,image_url) captcha = {’hashkey’: hashkey, ’image_url’: image_url} return render(request, 'login.html', locals()) def post(self, request): capt = request.POST.get('captcha', None) # 用戶提交的驗(yàn)證碼 key = request.POST.get('hashkey', None) # 驗(yàn)證碼答案 if jarge_captcha(capt, key): return HttpResponse('驗(yàn)證碼正確') else: return HttpResponse('驗(yàn)證碼錯(cuò)誤')

6.templates文件夾下login.html的內(nèi)容

{% load static %}<html lang='en'><head> <meta charset='UTF-8'> <title>Title</title> <script src='https://cdn.bootcdn.net/ajax/libs/jquery/3.5.1/jquery.js'></script> <script src='https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/4.0.0/js/bootstrap.js'></script></head><body> <form action='/test/' method='post'> {% csrf_token %} <a href='http://www.piao2010.com/bcjs/17127.html#' rel='external nofollow' class='captcha'> <img src='http://www.piao2010.com/bcjs/{{ captcha.image_url }}' alt='點(diǎn)擊切換' > </a> <br> <input type='text' name='captcha' placeholder='驗(yàn)證碼'> <br> <input value='{{ captcha.hashkey }}' name='hashkey' type='hidden' id='id_captcha_0'> <button type='submit' class='btn btn-primary btn-block '>提交</button> </form><script> <!-- 動(dòng)態(tài)刷新驗(yàn)證碼js --> $(document).ready(function(){ $(’.captcha’).click(function () {$.getJSON('/refresh_captcha/', function (result) { $(’#id_captcha’).attr(’src’, result[’image_url’]); $(’#id_captcha_0’).val(result[’hashkey’])}); }); });</script></body></html>

django-simple-captcha并沒(méi)有使用session對(duì)驗(yàn)證碼進(jìn)行存儲(chǔ),而是使用了數(shù)據(jù)庫(kù),當(dāng)你在做數(shù)據(jù)庫(kù)遷移的時(shí)候會(huì)生成一個(gè)表 captcha_captchastore ,包含以下字段

challenge = models.CharField(blank=False, max_length=32) # 驗(yàn)證碼大寫(xiě)或者數(shù)學(xué)計(jì)算比如 1+1response = models.CharField(blank=False, max_length=32) # 需要輸入的驗(yàn)證碼 驗(yàn)證碼小寫(xiě)或數(shù)學(xué)計(jì)算的結(jié)果 比如 2hashkey = models.CharField(blank=False, max_length=40, unique=True) # hash值expiration = models.DateTimeField(blank=False) # 到期時(shí)間

以上就是本文的全部?jī)?nèi)容,希望對(duì)大家的學(xué)習(xí)有所幫助,也希望大家多多支持好吧啦網(wǎng)。

標(biāo)簽: Django
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