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本文源码转至:https://github.com/kasun/python-tail 感谢作者, 稍加修改,实现了文件动态上传的功能
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一: 主体执行部分 [root@linux219 base]# cat vsftp.py #!/usr/bin/env python #-*-coding:UTF-8-*- """ @Item : cheetah v1.0 @Author : william @Group : System YunWei @Date : 2015-01-28 @E-mail : swq.499809608@163.com @Funtion: """ import json,sys,time,os import time import hmac import hashlib import requests import re import tail Dfile = "/data/base/vsftp" Vfile = "/var/log/vsftpd.log" Nfile = "/data/base/vsftp/n.log" def s3Vsftp(): os.system("cp -fr %s %s "%(Vfile,Nfile)) os.system("echo ''>%s "%Vfile) fp = open(Nfile,'r').readlines() for x in fp: if re.search("CHMOD",x) or re.search("UPLOAD",x): x = x.strip() x = x.split('"')[3] nx = x.split()[0] if os.path.isfile("/data/cifs"+nx): os.system("s3cmd --acl-public put /data/cifs%s s3://swq499809608.aws.com%s" %(nx,nx)) elif re.search('zip',nx): try: os.system("s3cmd --acl-public put %s s3://swq499809608.aws.com%s" %(nx,nx.split('imguser')[1])) except: pass os.system("mv %s %s/%s.file"%(Nfile,Dfile,time.strftime("%F-%H-%M"))) def work(): while True: t = tail.Tail(Vfile) print t.follow() if __name__ == "__main__": sc = work() 二: tail. 实现部分 源码转至: https://github.com/kasun/python-tail [root@linux219 base]# cat tail.py #!/usr/bin/env python ''' Python-Tail - Unix tail follow implementation in Python. python-tail can be used to monitor changes to a file. Example: import tail # Create a tail instance t = tail.Tail('file-to-be-followed') # Register a callback function to be called when a new line is found in the followed file. # If no callback function is registerd, new lines would be printed to standard out. t.register_callback(callback_function) # Follow the file with 5 seconds as sleep time between iterations. # If sleep time is not provided 1 second is used as the default time. t.follow(s=5) ''' # Author - Kasun Herath# Source - https://github.com/kasun/python-tail import os import sys import time import re class Tail(object): ''' Represents a tail command. ''' def __init__(self, tailed_file): ''' Initiate a Tail instance. Check for file validity, assigns callback function to standard out. Arguments: tailed_file - File to be followed. ''' self.check_file_validity(tailed_file) self.tailed_file = tailed_file self.callback = sys.stdout.write def follow(self, s=1): ''' Do a tail follow. If a callback function is registered it is called with every new line. Else printed to standard out. Arguments: s - Number of seconds to wait between each iteration; Defaults to 1. ''' with open(self.tailed_file) as file_: # Go to the end of file file_.seek(0,2) while True: curr_position = file_.tell() line = file_.readline() if not line: file_.seek(curr_position) time.sleep(s) else: #self.callback(line) if re.search("CHMOD",line) or re.search("UPLOAD",line): #修改主体部分 x = line.strip() x = x.split('"')[3] nx = x.split()[0] # commad s3cmd put file if os.path.isfile("/data/cifs"+nx): print "/data/cifs"+nx os.system("s3cmd --acl-public put /data/cifs%s s3://swq499809608.aws.com%s" %(nx,nx)) print ("s3cmd --acl-public put /data/cifs%s s3://swq499809608.aws.com%s" %(nx,nx)) elif re.search('zip',nx): try: os.system("s3cmd --acl-public put %s s3://swq499809608.aws.com%s" %(nx,nx.split('imguser')[1])) except: pass else: print 'no' #主体结束部分 def register_callback(self, func): ''' Overrides default callback function to provided function. ''' self.callback = func def check_file_validity(self, file_): ''' Check whether the a given file exists, readable and is a file ''' if not os.access(file_, os.F_OK): raise TailError("File '%s' does not exist" % (file_)) if not os.access(file_, os.R_OK): raise TailError("File '%s' not readable" % (file_)) if os.path.isdir(file_): raise TailError("File '%s' is a directory" % (file_)) class TailError(Exception): def __init__(self, msg): self.message = msg def __str__(self): return 'yes',self.message.split('')