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safecode.py
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safecode.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright(C) 2008 SupDo.com
# Licensed under the GUN License, Version 3.0 (the "License");
#
# File: safecode.py
# Author: KuKei
# Create Date: 2008-07-16
# Description: 负责验证码生成。
# Modify Date: 2008-08-06
import hashlib
import random
from pngcanvas import PNGCanvas
class Image():
text = None
md5Text = None
img = None
width = 0
height = 0
#长度
textX = 10
textY = 10
beginX = 5
endX = 5
beginY = 5
endY = 5
spare = 4
def __init__(self,text=None):
if(text==None):
self.text = self.getRandom()
else:
self.text = text
#self.getMd5Text()
self.width = len(str(self.text))*(self.spare+self.textX)+self.beginX+self.endX
self.height = self.textY + self.beginY + self.endY
def create(self):
self.img = PNGCanvas(self.width,self.height)
self.img.color = [0xff,0xff,0xff,0xff]
#self.img.color = [0x39,0x9e,0xff,0xff]
#self.img.verticalGradient(1,1,self.width-2, self.height-2,[0xff,0,0,0xff],[0x60,0,0xff,0x80])
self.img.verticalGradient(1,1,self.width-2, self.height-2,[0xff,0x45,0x45,0xff],[0xff,0xcb,0x44,0xff])
for i in range(4):
a = str(self.text)[i]
self.writeText(a,i)
return self.img.dump()
def getRandom(self):
intRand = random.randrange(1000,9999)
return intRand
def getMd5Text(self):
m = md5.new()
m.update(str(self.text))
self.md5Text = m.hexdigest()
def writeText(self,text,pos=0):
if(text=="1"):
self.writeLine(pos, "avc")
elif(text=="2"):
self.writeLine(pos, "aht")
self.writeLine(pos, "hvtr")
self.writeLine(pos, "ahc")
self.writeLine(pos, "hvbl")
self.writeLine(pos, "ahb")
elif(text=="3"):
self.writeLine(pos, "aht")
self.writeLine(pos, "ahc")
self.writeLine(pos, "ahb")
self.writeLine(pos, "avr")
elif(text=="4"):
self.writeLine(pos, "hvtl")
self.writeLine(pos, "ahc")
self.writeLine(pos, "avc")
elif(text=="5"):
self.writeLine(pos, "aht")
self.writeLine(pos, "hvtl")
self.writeLine(pos, "ahc")
self.writeLine(pos, "hvbr")
self.writeLine(pos, "ahb")
elif(text=="6"):
self.writeLine(pos, "aht")
self.writeLine(pos, "avl")
self.writeLine(pos, "ahc")
self.writeLine(pos, "hvbr")
self.writeLine(pos, "ahb")
elif(text=="7"):
self.writeLine(pos, "aht")
self.writeLine(pos, "avr")
elif(text=="8"):
self.writeLine(pos, "aht")
self.writeLine(pos, "avl")
self.writeLine(pos, "ahc")
self.writeLine(pos, "avr")
self.writeLine(pos, "ahb")
elif(text=="9"):
self.writeLine(pos, "aht")
self.writeLine(pos, "avr")
self.writeLine(pos, "ahc")
self.writeLine(pos, "ahb")
self.writeLine(pos, "hvtl")
elif(text=="0"):
self.writeLine(pos, "aht")
self.writeLine(pos, "avl")
self.writeLine(pos, "avr")
self.writeLine(pos, "ahb")
'''
type解释
a:全部,部分上下
h:一半
h:横
v:竖
l:左，上
c:中间
r:右，下
t:上
b:下
'''
def writeLine(self,pos,type):
if(type=="avl"):
self.img.line(
self.beginX+(self.textX+self.spare)*pos,
self.beginY,
self.beginX+(self.textX+self.spare)*pos,
self.beginY+self.textY
)
elif(type=="avc"):
self.img.line(
self.beginX+(self.textX+self.spare)*pos+self.textX/2,
self.beginY,
self.beginX+(self.textX+self.spare)*pos+self.textX/2,
self.beginY+self.textY
)
elif(type=="avr"):
self.img.line(
self.beginX+(self.textX+self.spare)*pos+self.textX,
self.beginY,
self.beginX+(self.textX+self.spare)*pos+self.textX,
self.beginY+self.textY
)
elif(type=="aht"):
self.img.line(
self.beginX+(self.textX+self.spare)*pos,
self.beginY,
self.beginX+(self.textX+self.spare)*pos+self.textX,
self.beginY,
)
elif(type=="ahc"):
self.img.line(
self.beginX+(self.textX+self.spare)*pos,
self.beginY+self.textY/2,
self.beginX+(self.textX+self.spare)*pos+self.textX,
self.beginY+self.textY/2
)
elif(type=="ahb"):
self.img.line(
self.beginX+(self.textX+self.spare)*pos,
self.beginY+self.textY,
self.beginX+(self.textX+self.spare)*pos+self.textX,
self.beginY+self.textY
)
elif(type=="hvtl"):
self.img.line(
self.beginX+(self.textX+self.spare)*pos,
self.beginY,
self.beginX+(self.textX+self.spare)*pos,
self.beginY+self.textY/2
)
elif(type=="hvtr"):
self.img.line(
self.beginX+(self.textX+self.spare)*pos+self.textX,
self.beginY,
self.beginX+(self.textX+self.spare)*pos+self.textX,
self.beginY+self.textY/2
)
elif(type=="hvbl"):
self.img.line(
self.beginX+(self.textX+self.spare)*pos,
self.beginY+self.textY/2,
self.beginX+(self.textX+self.spare)*pos,
self.beginY+self.textY
)
elif(type=="hvbr"):
self.img.line(
self.beginX+(self.textX+self.spare)*pos+self.textX,
self.beginY+self.textY/2,
self.beginX+(self.textX+self.spare)*pos+self.textX,
self.beginY+self.textY
)