python验证数据的一些工具函数
2010-12-14 14:12:19
为了用于icokou对于表单提交数据的验证上，单独封装了一些函数便于使用
#! /usr/bin/env python
#coding=utf-8
import types
import re
"""
验证所有表单提交的数据
"""
#判断是否为整数 15
def IsNumber(varObj):
return type(varObj) is types.IntType
#判断是否为字符串 string
def IsString(varObj):
return type(varObj) is types.StringType
#判断是否为浮点数 1.324
def IsFloat(varObj):
return type(varObj) is types.FloatType
#判断是否为字典 {'a1':'1','a2':'2'}
def IsDict(varObj):
return type(varObj) is types.DictType
#判断是否为tuple [1,2,3]
def IsTuple(varObj):
return type(varObj) is types.TupleType
#判断是否为List [1,3,4]
def IsList(varObj):
return type(varObj) is types.ListType
#判断是否为布尔值 True
def IsBoolean(varObj):
return type(varObj) is types.BooleanType
#判断是否为货币型 1.32
def IsCurrency(varObj):
#数字是否为整数或浮点数
if IsFloat(varObj) and IsNumber(varObj):
#数字不能为负数
if varObj >0:
return isNumber(currencyObj)
return False
return True
#判断某个变量是否为空 x
def IsEmpty(varObj):
if len(varObj) == 0:
return True
return False
#判断变量是否为None None
def IsNone(varObj):
return type(varObj) is types.NoneType# == "None" or varObj == "none":
#判断是否为日期格式,并且是否符合日历规则 2010-01-31
def IsDate(varObj):
if len(varObj) == 10:
rule = '(([0-9]{3}[1-9]|[0-9]{2}[1-9][0-9]{1}|[0-9]{1}[1-9][0-9]{2}|[1-9][0-9]{3})-(((0[13578]|1[02])-(0[1-9]|[12][0-9]|3[01]))|((0[469]|11)-(0[1-9]|[12][0-9]|30))|(02-(0[1-9]|[1][0-9]|2[0-8]))))|((([0-9]{2})(0[48]|[2468][048]|[13579][26])|((0[48]|[2468][048]|[3579][26])00))-02-29)$/'
match = re.match( rule , varObj )
if match:
return True
return False
return False
#判断是否为邮件地址
def IsEmail(varObj):
rule = '[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$'
match = re.match( rule , varObj )
if match:
return True
return False
#判断是否为中文字符串
def IsChineseCharString(varObj):
for x in varObj:
if (x >= u"\u4e00" and x<=u"\u9fa5") or (x >= u'\u0041' and x<=u'\u005a') or (x >= u'\u0061' and x<=u'\u007a'):
continue
else:
return False
return True
#判断是否为中文字符
def IsChineseChar(varObj):
if varObj[0] > chr(127):
return True
return False
#判断帐号是否合法 字母开头，允许4-16字节，允许字母数字下划线
def IsLegalAccounts(varObj):
rule = '[a-zA-Z][a-zA-Z0-9_]{3,15}$'
match = re.match( rule , varObj )
if match:
return True
return False
#匹配IP地址
def IsIpAddr(varObj):
rule = '\d+\.\d+\.\d+\.\d+'
match = re.match( rule , varObj )
if match:
return True
return False
if __name__=='__main__':
print 'IsDate:',IsDate('2010-01-31')
print 'IsNone:',IsNone(None)
print 'IsEmpty:',IsEmpty('1')
print 'IsCurrency:',IsCurrency(1.32)
print 'IsList:',IsList([1,3,4])
print 'IsTuple:',IsTuple([1,3,4])
print 'IsDict:',IsDict({'a1':'1','a2':'2'})
print 'IsFloat:',IsFloat(1.2)
print 'IsString:',IsString('string')
print 'IsNumber:',IsNumber(15)
print 'IsEmail:',IsEmail('sgicer@163.com')
print 'IsChineseChar:',IsChineseChar(u'啊')
print 'IsChineseCharString:',IsChineseCharString(u'啊倒萨')
print 'IsLegalAccounts:',IsLegalAccounts('alan_z')
print 'IsIpAddr:',IsIpAddr('127.1110.0.1')
pass
浏览:351次 回复:2次 分类: python
icokou相关的一些工具代码,做个记录
2010-12-14 14:12:47
#! /usr/bin/env python
#coding=utf-8
import time
import datetime
from datetime import date
#计算生肖
def ChineseZodiac(year):
return u'猴鸡狗猪鼠牛虎兔龙蛇马羊'[year%12]
#计算星座
def Zodiac(month, day):
n = (u'摩羯座',u'水瓶座',u'双鱼座',u'白羊座',u'金牛座',u'双子座',u'巨蟹座',u'狮子座',u'处女座',u'天秤座',u'天蝎座',u'射手座')
d = ((1,20),(2,19),(3,21),(4,21),(5,21),(6,22),(7,23),(8,23),(9,23),(10,23),(11,23),(12,23))
return n[len(filter(lambda y:y<=(month,day), d))%12]
#分离文件名和扩展名
# ex071107.log.1.exe
def GetFileNameAndExt(filename):
import os
(filepath,tempfilename) = os.path.split(filename);
(shotname,extension) = os.path.splitext(tempfilename);
return shotname,extension
#获取客户端IP
def GetClientIp(requestMETA):
return requestMETA['REMOTE_ADDR']
#获取人性化的时间：
#GetFriendlyTime(datetime)
def GetFriendlyTime(ts):
delta = datetime.datetime.now() - ts
dateTimeDict = {}
# if delta.days >= 365:
# return u'%d 年前' % (delta.days / 365)
# elif delta.days >= 30:
#return u'%d 个月前' % (delta.days / 30)
if delta.days > 0:
dateTimeDict['friendlyTime'] = False
dateTimeDict['content'] = ts
return dateTimeDict
#print 'delta.days',delta.days
elif delta.seconds < 60:
dateTimeDict['friendlyTime'] = True
dateTimeDict['content'] = u"%d 秒前" % delta.seconds
return dateTimeDict
#return u"%d 秒前!" % delta.seconds
elif delta.seconds < 60 * 60:
dateTimeDict['friendlyTime'] = True
dateTimeDict['content'] = u"%d 分钟前" % (delta.seconds / 60)
return dateTimeDict
#return u"%d 分钟前" % (delta.seconds / 60)
else:
dateTimeDict['friendlyTime'] = True
dateTimeDict['content'] = u"%d 小时前" % (delta.seconds / 60 / 60)
return dateTimeDict
#return u"%d 小时前" % (delta.seconds / 60 / 60)
def MakeThumb(path, sizes=(75, 32, 16)):
"""
缩略图生成程序 by Neil Chen
sizes 参数传递要生成的尺寸，可以生成多种尺寸
"""
base, ext = os.path.splitext(path)
try:
im = Image.open(path)
except IOError:
return
mode = im.mode
if mode not in ('L', 'RGB'):
if mode == 'RGBA':
# 透明图片需要加白色底
alpha = im.split()[3]
bgmask = alpha.point(lambda x: 255-x)
im = im.convert('RGB')
# paste(color, box, mask)
im.paste((255,255,255), None, bgmask)
else:
im = im.convert('RGB')
width, height = im.size
if width == height:
region = im
else:
if width > height:
delta = (width - height)/2
box = (delta, 0, delta+height, height)
else:
delta = (height - width)/2
box = (0, delta, width, delta+width)
region = im.crop(box)
for size in sizes:
filename = base + "_" + "%sx%s" % (str(size), str(size)) + ".jpg"
thumb = region.resize((size,size), Image.ANTIALIAS)
thumb.save(filename, quality=100) # 默认 JPEG 保存质量是 75, 不太清楚。可选值(0~100)
if __name__=='__main__':
birthday = date(1985, 11, 10)
print 'ChineseZodiac:',ChineseZodiac(birthday.year)
print 'Zodiac:',Zodiac(birthday.month,birthday.day)
print 'GetFileNameAndExt:',GetFileNameAndExt('ex071107.log.1.exe')
用python让qq2010和360和平共处,原理不多说,看代码
2010-11-4 11:11:21
#! /usr/bin/env python
#coding=utf-8
import os
import time
import shutil
import stat
#获取系统环境变量
def GetLocalAppDataPath():
if os.environ['APPDATA']:
return os.environ['APPDATA']
if os.environ['LOCALAPPDATA']:
#系统环境变量
return os.environ['LOCALAPPDATA'].replace('\\Local','')
#获取操作系统类型 很弱智
def GetOsType(appDataPath):
if appDataPath[1:8] == ':\Users':
return 'win7'
else:
return 'winxp'
def CopyFolderOs(sFolder,tFolder):
sourcePath = sFolder
destPath = tFolder
for root, dirs, files in os.walk(sourcePath):
#figure out where we're going
dest = destPath + root.replace(sourcePath, '')
#if we're in a directory that doesn't exist in the destination folder
#then create a new folder
if not os.path.isdir(dest):
os.mkdir(dest)
print 'Directory created at: ' + dest
#loop through all files in the directory
for f in files:
#compute current (old) & new file locations
oldLoc = root + '\\' + f
newLoc = dest + '\\' + f
if not os.path.isfile(newLoc):
try:
shutil.copy2(oldLoc, newLoc)
print 'File ' + f + ' copied.'
except IOError:
print 'file "' + f + '" already exists'
def RemoveFolderOs(sourceDir,localAppDataPath):
for root, dirs, files in os.walk(sourceDir):
for f in files:
os.unlink(os.path.join(root, f))
for d in dirs:
shutil.rmtree(os.path.join(root, d))
os.chdir(localAppDataPath)
os.system(r'rd SafeBase /Q')
if __name__ == '__main__':
#本地应用程序数据路径
localAppDataPath = GetLocalAppDataPath()
#获取操作系统类型
osType = GetOsType(localAppDataPath)
if osType == 'win7':
localAppDataPath += '\Roaming\Tencent\QQ'
if osType == 'winxp':
localAppDataPath += '\Tencent\QQ'
print localAppDataPath
sourceDir = localAppDataPath + '\SafeBase'
targetDir = localAppDataPath + '\SafeBaseBak'
if os.path.exists(targetDir) == False:
os.mkdir(targetDir)
CopyFolderOs(sourceDir,targetDir)
print u'bakup files Successful!'
os.chdir(sourceDir)
print os.getcwd()
#os.system(r'attrib %s\*.* -r -a -s -h /S /D'%sourceDir)
#os.system(r'cd %s'%sourceDir)
oscmd = r'attrib -r -a -s -h *.* /S /D'
os.system(oscmd)
print oscmd
RemoveFolderOs(sourceDir,localAppDataPath)
#RemoveFolderOs(sourceDir)
print u'delete SafeBase Successful!'
f = file(localAppDataPath+'\SafeBase', 'w') # open for 'w'riting
f.write(u'sb 360,qq!\n') # write text to file
f.close() # close the file
print u'all Successful!'
浏览:221次 回复:0次 Tags: python qq 360 分类: python
django 1.2开启CsrfViewMiddleware之后 提交数据 IO Error解决一例
2010-10-1 00:10:37
django1.2之后的版本默认开启了CSRF防护的中间件(CsrfViewMiddleware)，不清楚CSRF的概念请自行了解。 我之前有写过一篇介绍应对django1.2.1默认开启CsrfViewMiddleware表单提交出现的问题，见这里http://tidepal.appspot.com/?p=10001.
最近两天在折腾icokou系统的图片上传问题，首先是头像上传，其次是得有一个支持批量图片上传的功能。
为了用户体验，肯定考虑是用AJAX提交，但是这就带来了和CSRF产生冲突的问题，昨天刚开始我用的是轻量级的jquery.ajax.upload上传文件，即出现了IO Error问题，百事不得其解，正好有人曾经推荐过uploadfly,我下载之后运行过它的php版本，确实挺不错，很适合我批量上传文件的需求。但是在将uploadify整合到django中又出现了IO Error.因为一开始我就被误导了,以为是django的media配置方面出现的问题，所以导致整合不成功，一直纠结于uploadify整合到django的细节里去了。昨天搞到4，5点，始终没有解决这个问题，没办法只有先睡觉了。
今天一起来，我考虑是不是uploadify组件本身是否存在问题，遂换了另外一个swfUpload，在公司的机器上实验，同样是整合到django里，结果是一蹴而就，没有半点波折就成功的实现了AJAX模式下的上传文件，欣喜持续到回家，在家里使用白天的成果，还是照样出现IO error。当时我就泪流满面了，回想了一下公司和家里的django环境，公司用的是1.1.1,家里用的是1.2.1,配置上区别就在于默认启用了CsrfViewMiddleware。
于是去掉了CsrfViewMiddleware配置，果然正常，但是为了系统的安全性，我不可能去掉CsrfViewMiddleware，于是继续思考解决办法。google了很多资料，最终在http://www.johnberns.com/2010/07/08/using-valums-jquery-ajax-upload-with-django-1-2/找到了答案。使用@csrf_exempt 为视图手动添加一个免除保护的装饰，测试代码如下。
from django.http import HttpResponse
from django.shortcuts import render_to_response
import time
from django.contrib.csrf.middleware import csrf_exempt
@csrf_exempt
def manual(request):
if request.method == 'POST':
for field_name in request.FILES:
uploaded_file = request.FILES[field_name]
uploadFileNameExt = uploaded_file.name.split('.')[1]
print uploadFileNameExt
uploadFileName = time.strftime('%Y%m%d%H%M%S',time.localtime(time.time()))
print uploadFileName
fullFileName = uploadFileName+'.'+uploadFileNameExt
destination_path = 'media/uploads/%s' % (fullFileName)
destination = open(destination_path, 'wb+')
for chunk in uploaded_file.chunks():
destination.write(chunk)
destination.close()
# indicate that everything is OK for SWFUpload
return HttpResponse("/site_media/uploads/%s"%fullFileName)
else:
# show the upload UI
return render_to_response('swfupload/manual.html')
至此，困扰了我2天的问题得以解决，在保证开启CsrfViewMiddleware的情况下继续使用AJAX提交表单。以下是测试上传头像的效果图。
django 对字段进行 Avg Sum Count Max Min StdDev Variance 计算
2010-09-28 01:09:20
要用到django的Sum统计某些字段的数值总和,官方文档里没找到,其实是文档太浩瀚无边了,我没找到.随即搜索类似的开源代码,找到一篇,顺手做个记录,便于查询,用到了aggregate和annotate,支持对多个字段分别进行运算,最终返回一个字典,很酷!然后,我也顺利的搜索到了django官方文档的解决方案,您为什么总是来得这么迟啊!http://docs.djangoproject.com/en/dev/topics/db/aggregation/
(..More)
(..More)
浏览:520次 回复:0次 Tags: django Avg Sum Count Max Min StdDev Variance 分类: django
