Property:WebDAV

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BoxMatrix >> Lexicon >> Network-Protocols >> WebDAV

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Protocol

Protocol:	WebDAV	Wiki	Freetz	IPPF	whmf	AVM	Web
Short for:	Web Distributed Authoring and Versioning
Location:	Lexicon >> Network-Protocols
Weblinks:	Wikipedia.int  -  Wikipedia.de   -  RFC-4918
Description:	HTTP(S) extension to make the web writable

Goto:   FRITZ!OS   -   SMW-Browser

Details

WebDAV is an extension to the HTTP(S) protocol which permits collaborative write access to web ressources.
It uses Port-80-tcp like HTTP (rarely) or Port-443-tcp like HTTPS, typically with authentification.

See also the CardDAV and CalDAV protocols which are based on WebDAV.

FRITZ!OS

FRITZ!OS uses WebDAV to mount the Online-Storage using the fuse filesystem. Since WebDAV is designed for collaborative
write access multiple devices can mount the same account. Example usages are the T-Cloud or 1&1 Online-Storage.

The Webinterface manages WebDAV in the webdavclient ui-module which is maintained by the ctlmgr plugin libctlwebdav.so.
Configuration is stored in usb.cfg which is maintained by libusbcfg.so.

The mount point of the WebDAV ressource is a localized subfolder of the NAS-root /var/media/ftp,
in german language this is one of:

• /var/media/ftp/Online-Speicher
• /var/media/ftp/Onlinespeicher

Online-Storage requires USB-Storage for buffering. The max. file size which could be handled depends on the space there.
The WebDAV access speed depends on the internet connection speed and the USB Storage-Speed.

The mounting is performed by mount.davfs, the unmounting by umount.davfs.
Both are called by the webdav_control script which is called on online status change from the webdav_net script.
webdav_control is also called by the hotplug handlers udev-mount-sd and storage, and by libctlwebdav.so and libcmapi.so.

webdavcfginfo is a helper to query WebDAV configuration values within the webdav_control script.

Providers

The list of WebDAV providers and HTTPS host URLs is hardcoded in webdav.lua - fw 7.90:

• 1&1 - sd2dav.1und1.de
• Alice SmartDisk - dav.disk.alice-dsl.de - removed in 7.39
• box.com - dav.box.com/dav
• Domainfactory - <username>.livedisk.df.eu/webdav
• Freenet - storage.freenet.de/dav
• GMX - webdav.mc.gmx.net
• humyo - dav.humyo.com - removed in 7.39
• myDisk - mydisk.se/<username> - removed in 7.39
• STRATO HiDrive - webdav.hidrive.strato.com
• Telekom - webdav.magentacloud.de
• WEB.DE - webdav.smartdrive.web.de
• Other - webdavclient:settings/host_url

The https:// part of the host URLs has been intentionally omitted to not abuse these servers.

SMW-Browser

Property:WebDAV

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