Office Online Server 集成

在Seafile专业版 4.4.0(或更高版本)中,可以使用 Microsoft Office Online Server (以前命名为Office Web Apps)在线预览文档。 Office Online Server 为所有的 Office 文档提供最佳预览。它还支持直接在web浏览器中协作编辑Office文件。对于拥有 Microsoft Office 批量许可证的组织,可以免费使用Office Online Server。有关 Office Online Server 的更多信息以及如何部署Office Online Server,请参阅 https://technet.microsoft.com/zh-cn/library/jj219455(v=office.16).aspx.

Seafile自身的Office文件预览仍然是默认的。使用 Office Online Server 进行预览,请添加以下配置项到 seahub_settings.py 中。

# Enable Office Online Server
ENABLE_OFFICE_WEB_APP = True

# Url of Office Online Server's discovery page
# The discovery page tells Seafile how to interact with Office Online Server when view file online
# You should change `http://example.office-web-app.com` to your actual Office Online Server server address
OFFICE_WEB_APP_BASE_URL = 'http://example.office-web-app.com/hosting/discovery'

# Expiration of WOPI access token
# WOPI access token is a string used by Seafile to determine the file's
# identity and permissions when use Office Online Server view it online
# And for security reason, this token should expire after a set time period
WOPI_ACCESS_TOKEN_EXPIRATION = 30 * 60 # seconds

# List of file formats that you want to view through Office Online Server
# You can change this value according to your preferences
# And of course you should make sure your Office Online Server supports to preview
# the files with the specified extensions
OFFICE_WEB_APP_FILE_EXTENSION = ('ods', 'xls', 'xlsb', 'xlsm', 'xlsx','ppsx', 'ppt',
    'pptm', 'pptx', 'doc', 'docm', 'docx')

# Enable edit files through Office Online Server
ENABLE_OFFICE_WEB_APP_EDIT = True

# types of files should be editable through Office Online Server
# Note, Office Online Server 2016 is needed for editing docx
OFFICE_WEB_APP_EDIT_FILE_EXTENSION = ('xlsx', 'pptx', 'docx')


# HTTPS authentication related (optional)

# Server certificates
# Path to a CA_BUNDLE file or directory with certificates of trusted CAs
# NOTE: If set this setting to a directory, the directory must have been processed using the c_rehash utility supplied with OpenSSL.
OFFICE_WEB_APP_SERVER_CA = '/path/to/certfile'


# Client certificates
# You can specify a single file (containing the private key and the certificate) to use as client side certificate
OFFICE_WEB_APP_CLIENT_PEM = 'path/to/client.pem'

# or you can specify these two file path to use as client side certificate
OFFICE_WEB_APP_CLIENT_CERT = 'path/to/client.cert'
OFFICE_WEB_APP_CLIENT_KEY = 'path/to/client.key'

然后重启服务

./seafile.sh restart
./seahub.sh restart

单击您在seahub_sttings.py中指定的文档后,您将看到新的预览页面。

office-web-app

故障排查

了解Web应用集成原理将帮助你排查问题。当用户访问页面时:

  1. (seahub->浏览器) Seahub 将生成一个包含 iframe 的页面并将其发送到浏览器。
  2. (浏览器->office web app) 使用 iframe,浏览器将尝试从 office online server 加载预览页面。
  3. (office online server->seahub) office online server 接收请求并向 Seahub 发送请求以获取文件内容。
  4. (office online server->浏览器) office online server 发送文件预览页面给浏览器。

请检查Seahub的Nginx日志(步骤3)和 office online server,以查看哪个步骤出错。

注意在 Windows 上的分页文件

您应该确保在您的Windows系统中至少配置了几GB的分页文件。否则,IIS工作进程在处理Office在线请求时可能会随机死亡。

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