将Chrome历史记录文件（sqlite）中的datetime字段转换为可读格式 [英] Convert datetime fields in Chrome history file (sqlite) to readable format

问题描述

使用脚本来收集使用时间戳（教育设置）的用户浏览器历史记录。
Firefox 3历史记录保存在sqlite文件中，并且邮票在UNIX时代，通过python中的SQL命令获取并转换为可读格式非常简单：

Working on a script to collect users browser history with time stamps ( educational setting). Firefox 3 history is kept in a sqlite file, and stamps are in UNIX epoch time... getting them and converting to readable format via a SQL command in python is pretty straightforward:

sql_select = """ SELECT datetime(moz_historyvisits.visit_date/1000000,'unixepoch','localtime'), 
                        moz_places.url 
                 FROM moz_places, moz_historyvisits 
                 WHERE moz_places.id = moz_historyvisits.place_id
             """
get_hist = list(cursor.execute (sql_select))

Chrome还将历史存储在sqlite文件中。但是历史时间戳显然格式化为自1601年1月1日午夜UTC之后的微秒数。

Chrome also stores history in a sqlite file.. but it's history time stamp is apparently formatted as the number of microseconds since midnight UTC of 1 January 1601....

如同Firefox示例（如 2010-01-23 11:22:09），此时间戳如何转换为可读格式？我正在使用python 2.5.x（OS X 10.5中的版本）编写脚本，并导入sqlite3模块....

How can this timestamp be converted to a readable format as in the Firefox example (like 2010-01-23 11:22:09)? I am writing the script with python 2.5.x ( the version on OS X 10.5 ), and importing sqlite3 module....

推荐答案

p>这可能不是世界上最多的Pythonic代码，但这里有一个解决方案：通过这样做来调整时区（EST在这里）欺骗：

This may not be the most Pythonic code in the world, but here's a solution: Cheated by adjusting for time zone (EST here) by doing this:

utctime = datetime.datetime(1601,1,1) + datetime.timedelta(microseconds = ms, hours =-5)

这是功能：它假定Chrome历史记录文件已从另一个帐户复制到/ Users / someuser / Documents / tmp / Chrome / History

Here's the function : It assumes that the Chrome history file has been copied from another account into /Users/someuser/Documents/tmp/Chrome/History

def getcr():
    connection = sqlite3.connect('/Users/someuser/Documents/tmp/Chrome/History')
    cursor = connection.cursor()
    get_time = list(cursor.execute("""SELECT last_visit_time FROM urls"""))
    get_url = list(cursor.execute("""SELECT url from urls"""))
    stripped_time = []
    crf = open ('/Users/someuser/Documents/tmp/cr/cr_hist.txt','w' )
    itr = iter(get_time)
    itr2 = iter(get_url)

    while True:
        try:
            newdate = str(itr.next())
            stripped1 = newdate.strip(' (),L')
            ms = int(stripped1)
            utctime = datetime.datetime(1601,1,1) + datetime.timedelta(microseconds = ms, hours =-5)
            stripped_time.append(str(utctime))
            newurl = str(itr2.next())
            stripped_url = newurl.strip(' ()')
            stripped_time.append(str(stripped_url))
            crf.write('\n')
            crf.write(str(utctime))
            crf.write('\n')
            crf.write(str(newurl))
            crf.write('\n')
            crf.write('\n')
            crf.write('********* Next Entry *********') 
            crf.write('\n')
        except StopIteration:
            break

    crf.close()            

    shutil.copy('/Users/someuser/Documents/tmp/cr/cr_hist.txt' , '/Users/parent/Documents/Chrome_History_Logs')
    os.rename('/Users/someuser/Documents/Chrome_History_Logs/cr_hist.txt','/Users/someuser/Documents/Chrome_History_Logs/%s.txt' % formatdate)

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