Initial YakPanel commit

class_v2/vilidate_v2.py

@@ -0,0 +1,130 @@
+#!/usr/bin/env python
+# coding: utf-8
+# +-------------------------------------------------------------------
+# | YakPanel
+# +-------------------------------------------------------------------
+# | Copyright (c) 2015-2099 YakPanel(https://www.yakpanel.com) All rights reserved.
+# +-------------------------------------------------------------------
+# | Author: hwliang <hwl@yakpanel.com>
+# +-------------------------------------------------------------------
+
+import random, math
+from PIL import Image, ImageDraw, ImageFont, ImageFilter
+ 
+class vieCode:
+    __fontSize = 20     #字体大小
+    __width    = 120    #画布宽度
+    __heigth   = 45     #画布高度
+    __length   = 4      #验证码长度
+    __draw     = None   #画布
+    __img      = None   #图片资源
+    __code     = None   #验证码字符
+    __str      = None   #自定义验证码字符集
+    __inCurve  = True   #是否画干扰线
+    __inNoise  = True   #是否画干扰点
+    __type     = 2      #验证码类型 1、纯字母  2、数字字母混合
+    __fontPatn = 'class/fonts/2.ttf' #字体
+    
+    def GetCodeImage(self,size = 80,length = 4):
+        '''获取验证码图片
+           @param int size 验证码大小
+           @param int length 验证码长度
+        '''
+        #准备基础数据
+        self.__length = length
+        self.__fontSize = size
+        self.__width = self.__fontSize * self.__length
+        self.__heigth = int(self.__fontSize * 1.5)
+        
+        #生成验证码图片
+        self.__createCode()
+        self.__createImage()
+        self.__createNoise()
+        self.__printString()
+        self.__cerateFilter()
+        
+        return self.__img,self.__code
+    
+    def __cerateFilter(self):
+        '''模糊处理'''
+        self.__img = self.__img.filter(ImageFilter.BLUR)
+        filter = ImageFilter.ModeFilter(8)
+        self.__img = self.__img.filter(filter)
+        
+    def __createCode(self):
+        '''创建验证码字符'''
+        #是否自定义字符集合
+        if not self.__str:
+            #源文本
+            number = "3456789"
+            srcLetter = "qwertyuipasdfghjkzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM"
+            srcUpper  = srcLetter.upper()
+            if self.__type == 1:
+                self.__str = number
+            else:
+                self.__str = srcLetter + srcUpper + number
+                
+        #构造验证码
+        self.__code = random.sample(self.__str,self.__length)
+    
+    def __createImage(self):
+        '''创建画布'''
+        bgColor = (random.randint(200,255),random.randint(200,255),random.randint(200,255))
+        self.__img = Image.new('RGB', (self.__width,self.__heigth), bgColor)
+        self.__draw = ImageDraw.Draw(self.__img)
+    
+    def __createNoise(self):
+        '''画干扰点'''
+        if not self.__inNoise:
+            return
+        font = ImageFont.truetype(self.__fontPatn, int(self.__fontSize / 1.5))
+        for i in range(5):
+            #杂点颜色
+            noiseColor = (random.randint(150,200), random.randint(150,200), random.randint(150,200))
+            putStr = random.sample(self.__str,2)
+            for j in range(2):
+                #绘杂点
+                size = (random.randint(-10,self.__width), random.randint(-10,self.__heigth))
+                self.__draw.text(size,putStr[j], font=font,fill=noiseColor)
+        pass
+    
+    def __createCurve(self):
+        '''画干扰线'''
+        if not self.__inCurve:
+            return
+        x = y = 0;
+        
+        #计算曲线系数
+        a = random.uniform(1, self.__heigth / 2)
+        b = random.uniform(-self.__width / 4, self.__heigth / 4)
+        f = random.uniform(-self.__heigth / 4, self.__heigth / 4)
+        t = random.uniform(self.__heigth, self.__width * 2)
+        xend = random.randint(self.__width / 2, self.__width * 2)
+        w = (2 * math.pi) / t
+        
+        #画曲线
+        color = (random.randint(30, 150), random.randint(30, 150), random.randint(30, 150))
+        for x in range(xend):
+            if w!=0:
+                for k in range(int(self.__heigth / 10)):
+                    y = a * math.sin(w * x + f)+ b + self.__heigth / 2
+                    i = int(self.__fontSize / 5)
+                    while i > 0:
+                        px = x + i
+                        py = y + i + k
+                        self.__draw.point((px , py), color)          
+                        i -= i
+    
+    def __printString(self):
+        '''打印验证码字符串'''
+        font = ImageFont.truetype(self.__fontPatn, self.__fontSize)
+        x = 0;
+        #打印字符到画板
+        for i in range(self.__length):
+            #设置字体随机颜色
+            color = (random.randint(30, 150), random.randint(30, 150), random.randint(30, 150))
+            #计算座标
+            x = random.uniform(self.__fontSize*i*0.95,self.__fontSize*i*1.1);
+            y = self.__fontSize * random.uniform(0.3,0.5);
+            #打印字符
+            self.__draw.text((x, y),self.__code[i], font=font, fill=color)