1 #!/usr/bin/env python 2 # -*- coding:utf-8 -*- 3 4 import random 5 from PIL import Image, ImageDraw, ImageFont, ImageFilter 6 7 _letter_cases = "abcdefghjkmnpqrstuvwxy" # 小写字母，去除可能干扰的i，l，o，z 8 _upper_cases = _letter_cases.upper() # 大写字母 9 _numbers = ''.join(map(str, range(3, 10))) # 数字 10 init_chars = ''.join((_letter_cases, _upper_cases, _numbers)) 11 12 13 def create_validate_code(size=(120, 30), 14 chars=init_chars, 15 img_type="GIF", 16 mode="RGB", 17 bg_color=(255, 255, 255), 18 fg_color=(0, 0, 255), 19 font_size=18, 20 font_type="Monaco.ttf", 21 length=4, 22 draw_lines=True, 23 n_line=(1, 2), 24 draw_points=True, 25 point_chance=2): 26 """ 27 @todo: 生成验证码图片 28 @param size: 图片的大小，格式（宽，高），默认为(120, 30) 29 @param chars: 允许的字符集合，格式字符串 30 @param img_type: 图片保存的格式，默认为GIF，可选的为GIF，JPEG，TIFF，PNG 31 @param mode: 图片模式，默认为RGB 32 @param bg_color: 背景颜色，默认为白色 33 @param fg_color: 前景色，验证码字符颜色，默认为蓝色#0000FF 34 @param font_size: 验证码字体大小 35 @param font_type: 验证码字体，默认为 ae_AlArabiya.ttf 36 @param length: 验证码字符个数 37 @param draw_lines: 是否划干扰线 38 @param n_lines: 干扰线的条数范围，格式元组，默认为(1, 2)，只有draw_lines为True时有效 39 @param draw_points: 是否画干扰点 40 @param point_chance: 干扰点出现的概率，大小范围[0, 100] 41 @return: [0]: PIL Image实例 42 @return: [1]: 验证码图片中的字符串 43 """ 44 45 width, height = size # 宽高 46 # 创建图形 47 img = Image.new(mode, size, bg_color) 48 draw = ImageDraw.Draw(img) # 创建画笔 49 50 def get_chars(): 51 """生成给定长度的字符串，返回列表格式""" 52 return random.sample(chars, length) 53 54 def create_lines(): 55 """绘制干扰线""" 56 line_num = random.randint(*n_line) # 干扰线条数 57 58 for i in range(line_num): 59 # 起始点 60 begin = (random.randint(0, size[0]), random.randint(0, size[1])) 61 # 结束点 62 end = (random.randint(0, size[0]), random.randint(0, size[1])) 63 draw.line([begin, end], fill=(0, 0, 0)) 64 65 def create_points(): 66 """绘制干扰点""" 67 chance = min(100, max(0, int(point_chance))) # 大小限制在[0, 100] 68 69 for w in range(width): 70 for h in range(height): 71 tmp = random.randint(0, 100) 72 if tmp > 100 - chance: 73 draw.point((w, h), fill=(0, 0, 0)) 74 75 def create_strs(): 76 """绘制验证码字符""" 77 c_chars = get_chars() 78 strs = ' %s ' % ' '.join(c_chars) # 每个字符前后以空格隔开 79 80 font = ImageFont.truetype(font_type, font_size) 81 font_width, font_height = font.getsize(strs) 82 83 draw.text(((width - font_width) / 3, (height - font_height) / 3), 84 strs, font=font, fill=fg_color) 85 86 return ''.join(c_chars) 87 88 if draw_lines: 89 create_lines() 90 if draw_points: 91 create_points() 92 strs = create_strs() 93 94 # 图形扭曲参数 95 params = [1 - float(random.randint(1, 2)) / 100, 96 0, 97 0, 98 0, 99 1 - float(random.randint(1, 10)) / 100, 100 float(random.randint(1, 2)) / 500, 101 0.001, 102 float(random.randint(1, 2)) / 500 103 ] 104 img = img.transform(size, Image.PERSPECTIVE, params) # 创建扭曲 105 106 img = img.filter(ImageFilter.EDGE_ENHANCE_MORE) # 滤镜，边界加强（阈值更大） 107 108 return img, strs
视图函数：
1 from app03.views.check_code import create_validate_code 2 from io import BytesIO 3 4 5 def check_code(request): 6 stream = BytesIO() 7 img, code = create_validate_code() 8 img.save(stream, 'PNG') 9 request.session['CheckCode'] = code 10 return HttpResponse(stream.getvalue()) 11 12 def login(request): 13 """ 14 登陆 15 :param request: 16 :return: 17 """ 18 # if request.method == "POST": 19 # if request.session['CheckCode'].upper() == request.POST.get('check_code').upper(): 20 # pass 21 # else: 22 # print('验证码错误') 23 if request.method == 'POST': 24 code = request.POST.get('check_code') 25 if code.upper() == request.session['CheckCode'].upper(): 26 print('验证码正确') 27 else: 28 print('验证码错误') 29 return render(request, 'login.html')
1 <div class="col-xs-7"> 2 <input type="text" class="form-control" placeholder="请输入验证码" name="check_code"> 3 </div> 4 <div class="col-xs-5"> 5 <h1 style="color: pink">验证码</h1> 6 <img src="/app03/check_code.html" onclick="changeCheckCode(this);"> 7 </div> 8 9 <script> 10 function changeCheckCode(ths){ 11 ths.src = ths.src + '?'; 12 } 13 </script>
滑动验证码：
1、打开插件，找到自己需要的验证码
2、筛选有用的路径
3、把对应的视图函数也拿过来,注意还需要一个geetest.py的文件
1 #滑动验证码 2 url(r'^pc-geetest/register', pcgetcaptcha, name='pcgetcaptcha'), 3 url(r'^pc-geetest/ajax_validate', pcajax_validate, name='pcajax_validate'),
1 # ================ 2 from app01.geetest import GeetestLib 3 pc_geetest_id = "b46d1900d0a894591916ea94ea91bd2c" 4 pc_geetest_key = "36fc3fe98530eea08dfc6ce76e3d24c4" 5 mobile_geetest_id = "7c25da6fe21944cfe507d2f9876775a9" 6 mobile_geetest_key = "f5883f4ee3bd4fa8caec67941de1b903" 7 # 滑动验证码 8 def pcgetcaptcha(request): 9 user_id = 'test' 10 gt = GeetestLib(pc_geetest_id, pc_geetest_key) 11 status = gt.pre_process(user_id) 12 request.session[gt.GT_STATUS_SESSION_KEY] = status 13 request.session["user_id"] = user_id 14 response_str = gt.get_response_str() 15 return HttpResponse(response_str) 16 # 滑动验证码 17 def pcajax_validate(request): 18 19 if request.method == "POST": 20 # 验证的验证码 21 ret = {"flag": False, "error_msg": None} 22 gt = GeetestLib(pc_geetest_id, pc_geetest_key) 23 challenge = request.POST.get(gt.FN_CHALLENGE, '') 24 validate = request.POST.get(gt.FN_VALIDATE, '') 25 seccode = request.POST.get(gt.FN_SECCODE, '') 26 status = request.session[gt.GT_STATUS_SESSION_KEY] 27 user_id = request.session["user_id"] 28 print("status",status) 29 if status: 30 result = gt.success_validate(challenge, validate, seccode, user_id) 31 else: 32 result = gt.failback_validate(challenge, validate, seccode) 33 if result: #如果验证验证码正确，就验证用户名是否正确 34 username = request.POST.get("username") 35 password = request.POST.get("password") 36 37 # 验证用户名和密码 38 user = auth.authenticate(username=username, password=password) 39 if user: 40 # 如果验证成功就让登录 41 ret["flag"] = True 42 auth.login(request, user) 43 else: 44 ret["error_msg"] = "用户名和密码错误" 45 else: 46 ret["error_msg"] = "验证码错误" 47 return HttpResponse(json.dumps(ret)) 48 else: 49 return render(request, "login.html")
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <meta http-equiv="X-UA-Compatible" content="IE=edge"> 6 <meta name="viewport" content="width=device-width"> 7 <title>Title</title> 8 <link rel="stylesheet" href="/static/bootstrap-3.3.7-dist/css/bootstrap.min.css"> 9 <link rel="stylesheet" href="/static/css/login.css"> 10 <script src="/static/jquery-3.2.1.min.js"></script> 11 滑动验证码的时候导入 12 <script src="http://static.geetest.com/static/tools/gt.js"></script> 13 <script src="/static/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script> 14 <script src="https://cdn.bootcss.com/jquery-cookie/1.4.1/jquery.cookie.js"></script> 15 16 </head> 17 <body> 18 <div class="container"> 19 <div class="row"> 20 <div class="col-md-1=10"> 21 <form class="form-horizontal" id="form_data" action="/login/" method="post"> 22 {% csrf_token %} 23 <div class="form-group"> 24 <label for="username" class="col-sm-2 control-label">用户名</label> 25 <div class="col-sm-5"> 26 <input type="text" class="form-control" id="username" placeholder="username" name="username"> 27 </div> 28 </div> 29 <div class="form-group"> 30 <label for="password" class="col-sm-2 control-label">密码</label> 31 <div class="col-sm-5"> 32 <input type="password" class="form-control" id="password" placeholder="password" name="password"> 33 </div> 34 </div> 35 <div class="form-group"> 36 <div class="row"> 37 <div class="col-md-6 col-md-offset-1"> 38 {# 文字部分#} 39 <label for="vialdCode" class="col-sm-2 control-label">验证码</label> 40 <div class="col-sm-5"> 41 <input type="text" class="form-control vialdCode_text" id="vialdCode" placeholder="验证码" name="vialdCode"> 42 </div> 43 {# 图片部分#} 44 <div class="col-md-5"> 45 <img class="vialdCode_img" src="/get_vaildCode_img/" alt="" width="200px" height="100px"> 46 {# <a href=""></a> #} 47 </div> 48 </div> 49 50 </div> 51 </div> 52 <div class="form-group"> 53 <div class="col-sm-offset-2 col-sm-10"> 54 <div class="checkbox"> 55 <label> 56 <input type="checkbox"> 下次自动登录 57 </label> 58 </div> 59 </div> 60 </div> 61 <div class="form-group"> 62 <div class="col-sm-offset-2 col-sm-10"> 63 <p> 64 <button type="button" class="btn btn-success login" id="submit">登录</button> 65 <span class="error has-error"></span></p> 66 <p> 67 <button type="button" class="btn btn-primary register">注册</button> 68 </p> 69 </div> 70 <div id="popup-captcha"></div> 71 </div> 72 </form> 73 </div> 74 </div> 75 </div> 76 {#滑动验证码#} 77 <script> 78 var handlerPopup = function (captchaObj) { 79 $("#submit").click(function () { 80 captchaObj.show(); 81 }); 82 //定时函数 83 $(".login").click(function () { 84 function foo() { 85 $(".error").html("") 86 } 87 88 // 成功的回调 89 captchaObj.onSuccess(function () { 90 var validate = captchaObj.getValidate(); 91 $.ajax({ 92 url: "/pc-geetest/ajax_validate", // 进行二次验证 93 type: "post", 94 dataType: "json", 95 headers: {"X-CSRFToken": $.cookie('csrftoken')}, 96 data: { 97 username: $('#username').val(), 98 password: $('#password').val(), 99 geetest_challenge: validate.geetest_challenge, 100 geetest_validate: validate.geetest_validate, 101 geetest_seccode: validate.geetest_seccode 102 }, 103 success: function (data) { 104 console.log(data); 105 if (data["flag"]) { 106 {# alert(location.search);#} 107 {# alert(location.search.slice(6));#} 108 {# 方式一#} 109 {# if (location.search.slice(6)) {#} 110 {# 如果用户没有登录点赞的时候，当用户后来又登录了，就直接让跳转到当前点赞的那个路径#} 111 {# location.href = location.search.slice(6)#} 112 {# }#} 113 {# else {#} 114 {# window.location.href = '/index/'#} 115 {# }#} 116 {# 方式二：#} 117 alert($.cookie("next_path")); 118 if ($.cookie("next_path")){ 119 location.href = $.cookie("next_path") 120 } 121 else{ 122 location.href = "/index/" 123 } 124 } 125 else { 126 $(".error").html(data["error_msg"]); 127 setTimeout(foo, 3000) 128 } 129 } 130 }); 131 }); 132 133 }); 134 // 将验证码加到id为captcha的元素里 135 captchaObj.appendTo("#popup-captcha"); 136 // 更多接口参考：http://www.geetest.com/install/sections/idx-client-sdk.html 137 }; 138 // 验证开始需要向网站主后台获取id，challenge，success（是否启用failback） 139 $.ajax({ 140 url: "/pc-geetest/register?t=" + (new Date()).getTime(), // 加随机数防止缓存 141 type: "get", 142 dataType: "json", 143 success: function (data) { 144 // 使用initGeetest接口 145 // 参数1：配置参数 146 // 参数2：回调，回调的第一个参数验证码对象，之后可以使用它做appendTo之类的事件 147 initGeetest({ 148 gt: data.gt, 149 challenge: data.challenge, 150 product: "popup", // 产品形式，包括：float，embed，popup。注意只对PC版验证码有效 151 offline: !data.success // 表示用户后台检测极验服务器是否宕机，一般不需要关注 152 // 更多配置参数请参见：http://www.geetest.com/install/sections/idx-client-sdk.html#config 153 }, handlerPopup); 154 } 155 }); 156 </script>