Python读取Outlook的日历 – Perchouli 的 Blog

公司的会议预订系统使用Outlook，要读取这些预订记录传到部署在阿里云的数据库。Exchange服务器没办法从外网访问，就在内网某台机器上写了一个脚本，定时执行，来从Outlook中读取日历上的预订记录。

模块：pywin32 (http://sourceforge.net/projects/pywin32/)
环境：Windows 2008 + Outlook 2013 + Python 2.7.8

Filder & Items

因为从来没做过Windows开发，所以先看了一遍文档，主要的概念是Folder(https://msdn.microsoft.com/EN-US/library/ff866772.aspx)。

Folders

所以其实就是要读取Outlook中名为Calendar的Folder，要获得会议预订记录，取出Folder的Items进行迭代就可以了：

#!/usr/bin/env python
# -*- coding:utf-8 -*-

import datetime
import win32com.client

namespace = win32com.client.Dispatch('Outlook.Application').GetNamespace('MAPI')

if __name__ == '__main__':
    calendar = namespace.GetDefaultFolder(9)
    for item in calendar.Items:
        print(item.Subject)

#!/usr/bin/env python

# -*- coding:utf-8 -*-

import datetime

import win32com.client

namespace = win32com.client.Dispatch('Outlook.Application').GetNamespace('MAPI')

if __name__ == '__main__':

calendar = namespace.GetDefaultFolder(9)

for item in calendar.Items:

print(item.Subject)

获取一个Namespace对象 (https://msdn.microsoft.com/EN-US/library/office/ff869368.aspx)，Calendar是默认的Folder，所以使用了GetDefaultFolder这个方法。Folder是层级结构，也可以用其它方式获取到，例如：

if __name__ == '__main__':
    calendar = None
    for folder in namespace.Folders[0].Folders:
        if folder.Name.lower() == 'calendar':
            calendar = folder
            break
    for item in calendar.Items:
        print(item.Subject)

if __name__ == '__main__':

calendar = None

for folder in namespace.Folders[0].Folders:

if folder.Name.lower() == 'calendar':

calendar = folder

break

for item in calendar.Items:

print(item.Subject)

Find&Restrict

之前的代码是获取所有的Items，如果要对Items进行过滤，可以使用Find或Restrict，它们是属于Items的方法(https://msdn.microsoft.com/EN-US/library/office/ff868813.aspx)。区别是Find返回单个Item，Restrict返回多个：

#!/usr/bin/env python
# -*- coding:utf-8 -*-

import datetime
import win32com.client

namespace = win32com.client.Dispatch('Outlook.Application').GetNamespace('MAPI')

def _get_filter():
    begin = datetime.date.today()
    end = begin + datetime.timedelta(days=7) #日历中7天内的记录
    filter_string = "[Start] >= '" + begin.strftime("%m/%d/%Y") + "' AND [End] <= '" + end.strftime("%m/%d/%Y") + "'"
    return filter_string

if __name__ == '__main__':
    calendar = namespace.GetDefaultFolder(9)
    filter_string = _get_filter()
    item = calendar.Items.Find(filter_string)#返回一条记录
    print(item.Subject)

    items = calendar.Items.Restrict(filter_string)#返回collection
    for item in items:
        print(item.Start.Format('%Y-%m-%d'))
        print(item.Subject)

#!/usr/bin/env python

# -*- coding:utf-8 -*-

import datetime

import win32com.client

namespace = win32com.client.Dispatch('Outlook.Application').GetNamespace('MAPI')

def _get_filter():

begin = datetime.date.today()

end = begin + datetime.timedelta(days=7) #日历中7天内的记录

filter_string = "[Start] >= '" + begin.strftime("%m/%d/%Y") + "' AND [End] <= '" + end.strftime("%m/%d/%Y") + "'"

return filter_string

if __name__ == '__main__':

calendar = namespace.GetDefaultFolder(9)

filter_string = _get_filter()

item = calendar.Items.Find(filter_string)#返回一条记录

print(item.Subject)

items = calendar.Items.Restrict(filter_string)#返回collection

for item in items:

print(item.Start.Format('%Y-%m-%d'))

print(item.Subject)

Recipient

会议室预订记录是在共享日历(Shared Calendar)上，通过『打开日历(Open Calendar)-打开共享日历(Open Shared Calendar)』的操作，我已经把这个日历添加到『我的日历(My Calendar)』了，但我没办法直接读取它上面的记录。按直观的理解，添加这个日历，它应该是已经加入这个Folder了，结果试验了文档中我能找到的所有相关方法都无法读取。只能用Recipient来读取，但它需要连接Exchange服务器，帐号在AU中的权限要先打开，否则会提示找不到对象。

#!/usr/bin/env python
# -*- coding:utf-8 -*-

import datetime
import win32com.client

namespace = win32com.client.Dispatch('Outlook.Application').GetNamespace('MAPI')

def _get_filter():
    begin = datetime.date.today()
    end = begin + datetime.timedelta(days=7)
    filter_string = "[Start] >= '" + begin.strftime("%m/%d/%Y") + "' AND [End] <= '" + end.strftime("%m/%d/%Y") + "'"
    return filter_string

if __name__ == '__main__':
    recipient = namespace.createRecipient('Shared Calendar Name')
    resolved = recipient.Resolve()

    shared_calendar = namespace.GetSharedDefaultFolder(recipient, 9)
    items = shared_calendar.Items
    for item in items:
        print(item.Subject)

#!/usr/bin/env python

# -*- coding:utf-8 -*-

import datetime

import win32com.client

namespace = win32com.client.Dispatch('Outlook.Application').GetNamespace('MAPI')

def _get_filter():

begin = datetime.date.today()

end = begin + datetime.timedelta(days=7)

filter_string = "[Start] >= '" + begin.strftime("%m/%d/%Y") + "' AND [End] <= '" + end.strftime("%m/%d/%Y") + "'"

return filter_string

if __name__ == '__main__':

recipient = namespace.createRecipient('Shared Calendar Name')

resolved = recipient.Resolve()

shared_calendar = namespace.GetSharedDefaultFolder(recipient, 9)

items = shared_calendar.Items

for item in items:

print(item.Subject)

CreateRecipient方法(https://msdn.microsoft.com/EN-US/library/office/ff866418.aspx)接受邮箱地址、日历名字、别名等识别方式，执行之后会新建一个名为Shared Calendars的Group。

Others

执行脚本需要现在Outlook的『文件(FILE) – 选项(Options) – 信任中心(Trust Center) – 信任中心设置(Trust Center Settings)』中关闭警告(从不向我发出可疑活动警告Never ware me about suspicious activity)：
Folders

如果是灰色，可以直接在注册表中修改：

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\15.0\Outlook\Security]
@=""
"ObjectModelGuard"=dword:00000002

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\15.0\Outlook\Security]

@=""

"ObjectModelGuard"=dword:00000002

Filder & Items

Find&Restrict

Recipient

Others

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