code.jpg
from django.shortcuts import render
from django.http import HttpResponse
from django.shortcuts import redirect
from django.urls import reverse
from myadmin.models import User
# 驗證碼
def verify(request):
# 引入隨機函數模塊
import random
from PIL import Image, ImageDraw, ImageFont
# 定義變量，用於畫面的背景色、寬、高
# bgcolor = (random.randrange(20, 100), random.randrange(
# 20, 100),100)
bgcolor = (242, 164, 247)
width = 100
height = 25
# 創建畫面對象
im = Image.new('RGB', (width, height), bgcolor)
# 創建畫筆對象
draw = ImageDraw.Draw(im)
# 調用畫筆的point()函數繪制噪點
for i in range(0, 100):
xy = (random.randrange(0, width), random.randrange(0, height))
fill = (random.randrange(0, 255), 255, random.randrange(0, 255))
draw.point(xy, fill=fill)
# 定義驗證碼的備選值
# str1 = 'ABCD123EFGHIJK456LMNOPQRS789TUVWXYZ0'
str1 = '0123456789'
# 隨機選取4個值作為驗證碼
rand_str = ''
for i in range(0, 4):
rand_str += str1[random.randrange(0, len(str1))]
# 構造字體對象，ubuntu的字體路徑為“/usr/share/fonts/truetype/freefont”
font = ImageFont.truetype('static/arial.ttf', 21)
# font = ImageFont.load_default().font
# 構造字體顏色
fontcolor = (255, random.randrange(0, 255), random.randrange(0, 255))
# 繪制4個字
draw.text((5, -3), rand_str[0], font=font, fill=fontcolor)
draw.text((25, -3), rand_str[1], font=font, fill=fontcolor)
draw.text((50, -3), rand_str[2], font=font, fill=fontcolor)
draw.text((75, -3), rand_str[3], font=font, fill=fontcolor)
# 釋放畫筆
del draw
# 存入session，用於做進一步驗證
request.session['verifycode'] = rand_str
"""
python2的為
# 內存文件操作
import cStringIO
buf = cStringIO.StringIO()
"""
# 內存文件操作-->此方法為python3的
import io
buf = io.BytesIO()
# 將圖片保存在內存中，文件類型為png
im.save(buf, 'png')
# 將內存中的圖片數據返回給客戶端，MIME類型為圖片png
return HttpResponse(buf.getvalue(), 'image/png')
<input type="text" class="form-control" name = 'code' placeholder="驗證碼">
<span class="form-control-feedback" >
<img src="{% url 'myadmin_verify' %}" onclick="this.src = '{% url 'myadmin_verify' %}?sn='+Math.random()"/></span>
配置路由
path('verify', index.verify, name="myadmin_verify"), # 驗證碼
# 執行管理員登錄
def dologin(request):
try:
#執行驗證碼驗證
if request.POST['code'] != request.session['verifycode']:
context = {"info": '驗證碼錯誤，請重新輸入'}
return render(request, 'myadmin/index/login.html', context)
user = User.objects.get(username=request.POST['username'])
# 判斷當前用戶是否是管理員
if user.status == 6:
# 判斷密碼相同
import hashlib
md5 = hashlib.md5()
s = request.POST['pass'] + user.password_salt
md5.update(s.encode('utf-8'))
if user.password_hash == md5.hexdigest():
# 將當前登錄成功的用戶信息以adminuser為key存入到session中
request.session['adminuser'] = user.toDict()
return redirect(reverse("myadmin_index"))
else:
context = {"info": '密碼錯誤，請重新輸入'}
else:
context = {"info": '無效的登錄賬號'}
except Exception as err:
print(err)
context = {"info": '登錄賬號不存在'}
return render(request, 'myadmin/index/login.html', context)
