1. Build a Versioning File System
using WebDAV and Subversion
BCN Sudoers
javier@rodriguez.org.mx
20120103
http://slideshare.net/codehead

2. WebDAV
● RFC4918: HTTP Extensions for Web Distributed
Authoring and Versioning (WebDAV)
● http://www.webdav.org/

3. WEBDAV METHODS
WebDAV Methods
● PROPFIND
● PROPPATCH
● MKCOL
● COPY
● MOVE
● LOCK
● UNLOCK

4. ●
the B
'
WHATS Windows IG DE
AL
May use HTTP or HTTPS as transport layer
?
● Use existing infrastructure
● Binary transparent
● Can be used as a remote filesystem

5. Apache httpd
Web Browser HTTP
filesystem

6. Apache httpd
WebDAV Client WebDAV
HTTP
filesystem

7. Windows ENTS
AV CLI
WEBD
● Mount as a filesystem
● FTP-like interface

8. Windows S
WINDOW
● Native “Web Folders” ● MS Office
(Mostly broken) ● Bit Kinex
● Xythos Drive ● CyberDuck
● WebDrive $
● GoodSync $

9. MAC
Mac
● Native Finder ● iWork
● MacFUSE ● CyberDuck

10. Linux
LINUX
● davfs2 ● KDE konqueror
● fusedav ● KDE dolphin
● Gnome Nautilus
● cadaver

11. Re c ipe 1
Subversion
WebDAV server using Apache2

12. In Dependencies s
gredient
● Mandatory
● apache2-mpm-prefork
● Optional
● libapache2-mod-auth-*

13. Hello, mod-ssl
<VirtualHost _default_:443>
ServerAdmin webmaster@localhost
DocumentRoot /var/www
<Directory />
Options FollowSymLinks
AllowOverride None
</Directory>
<Directory /var/www/>
Options Indexes FollowSymLinks MultiViews
AllowOverride None
Order allow,deny
allow from all
</Directory>
ErrorLog ${APACHE_LOG_DIR}/error.log
LogLevel warn
CustomLog ${APACHE_LOG_DIR}/ssl_access.log combined
SSLEngine on
SSLCertificateFile /etc/ssl/certs/webdav.pem
SSLCertificateKeyFile /etc/ssl/private/webdav.key
BrowserMatch "MSIE [2-6]"
nokeepalive ssl-unclean-shutdown
downgrade-1.0 force-response-1.0
BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown
</VirtualHost>

14. Enable webd
av
# a2enmod ssl dav_svn dav_fs
# mkdir /var/lib/webdav
# chown -R www-data.www-data /var/lib/webdav
Alias /webdav/ /var/lib/webdav/
<Location /webdav>
DAV On
AuthBasicProvider file
AuthType Basic
AuthUserFile htpasswd
AuthName "WebDAV"
require valid-user
Options +Indexes
DirectoryIndex
</Location>

15. Enable webd
av
# a2enmod ssl dav_svn dav_fs
# mkdir /var/lib/webdav
# chown -R www-data.www-data /var/lib/webdav
Alias /webdav/ /var/lib/webdav/
<Location /webdav> Specify a real path
DAV On
AuthBasicProvider file
AuthType Basic
AuthUserFile htpasswd
AuthName "WebDAV"
require valid-user
Options +Indexes
DirectoryIndex
</Location>

16. Enable webd
av
# a2enmod ssl dav_svn dav_fs
# mkdir /var/lib/webdav
# chown -R www-data.www-data /var/lib/webdav
Alias /webdav/ /var/lib/webdav/
<Location /webdav>
DAV On
AuthBasicProvider file Turn DAV on
AuthType Basic
AuthUserFile htpasswd
AuthName "WebDAV"
require valid-user
Options +Indexes
DirectoryIndex
</Location>

17. Enable webd
av
# a2enmod ssl dav_svn dav_fs
# mkdir /var/lib/webdav
# chown -R www-data.www-data /var/lib/webdav
Alias /webdav/ /var/lib/webdav/
<Location /webdav>
DAV On
AuthBasicProvider file
AuthType Basic Season to taste
AuthUserFile htpasswd
AuthName "WebDAV"
require valid-user
Options +Indexes
DirectoryIndex
</Location>

18. TEST webdav

19. TEST webdav
Apache httpd
Web Browser HTTP
filesystem
# curl --insecure --user testuser https://sandbox.ascii164.com/webdav/

20. TEST webdav
Apache httpd
WebDAV Client WebDAV
HTTP
filesystem
# mkdir /mnt/dav
# mount -t davfs https://sandbox.ascii164.com/webdav/ /mnt/dav
# mount
# ls /mnt/dav

21. Subversionn
v ersio
sub
● Delta-V WebDAV Versioning Extension
(RFC3253)
● CollabNet → Apache Software Foundation
● http://subversion.apache.org/

22. RECIPE
Subversion
2
svn server using Apache2

23. Dependenciests
re dien
Ing
● Mandatory
● apache2-mpm-prefork
● libapache2-svn
● subversion
● Optional
● libapache2-mod-dnssd
● libapache2-mod-auth-*

24. Enable SUBV
ERSION
# mkdir /var/lib/svn
# svnadmin create /var/lib/svn/repo
# chown -R www-data.www-data /var/lib/svn
<Location /svn>
DAV svn
SVNParentPath /var/lib/svn
AuthBasicProvider file
AuthType Basic
AuthUserFile htpasswd
AuthName "Subversion"
require valid-user
Options +Indexes
DirectoryIndex
</Location>

25. Enable SUBV
ERSION
# mkdir /var/lib/svn
# svnadmin create /var/lib/svn/repo
# chown -R www-data.www-data /var/lib/svn
<Location /svn>
DAV svn Virtual Path
SVNParentPath /var/lib/svn
AuthBasicProvider file
AuthType Basic
AuthUserFile htpasswd
AuthName "Subversion"
require valid-user
Options +Indexes
DirectoryIndex
</Location>

26. Enable SUBV
ERSION
# mkdir /var/lib/svn
# svnadmin create /var/lib/svn/repo
# chown -R www-data.www-data /var/lib/svn
<Location /svn>
DAV svn
SVNParentPath /var/lib/svnFile System
svn DAV
AuthBasicProvider file
AuthType Basic
AuthUserFile htpasswd
AuthName "Subversion"
require valid-user
Options +Indexes
DirectoryIndex
</Location>

27. Enable SUBV
ERSION
# mkdir /var/lib/svn
# svnadmin create /var/lib/svn/repo
# chown -R www-data.www-data /var/lib/svn
<Location /svn>
DAV svn
SVNParentPath /var/lib/svn Repo Root
AuthBasicProvider file (Use SVNPath
AuthType Basic for a single repo)
AuthUserFile htpasswd
AuthName "Subversion"
require valid-user
Options +Indexes
DirectoryIndex
</Location>

28. TES T SUBVERSION

29. TES T SUBVERSION
SVN Client Delta-V
Apache httpd
WebDAV
HTTP
libsvn
filesystem
# svn mkdir https://sandbox.ascii164.com/svn/repo/trunk/
https://sandbox.ascii164.com/svn/repo/tags/
https://sandbox.ascii164.com/svn/repo/branches/
# svn ls https://sandbox.ascii164.com/svn/repo/

30. TES T SUBVERSION
Delta-V
Apache httpd
WebDAV
Web Browser HTTP
libsvn
filesystem
# curl --insecure --user testuser https://sandbox.ascii164.com/svn/repo/

31. v ersi oning
vs
backup

32. WHEN
should I create
a new version ?

33. Subversion
ipe 3
Rec
autoversioning filesystem

34. Enable auto
versioning
# mkdir /var/lib/svn
# svnadmin create /var/lib/svn/documents
# chown -R www-data.www-data /var/lib/svn
<Location /documents>
DAV svn
SVNPath /var/lib/svn/documents
SVNAutoVersioning on
ModMimeUsePathInfo on
AuthBasicProvider file
AuthType Basic
AuthUserFile htpasswd
AuthName "Documents"
require valid-user
Options +Indexes
DirectoryIndex
</Location>

35. EST autov ersioning
T
Delta-V
Apache httpd
WebDAV Client WebDAV
HTTP
libsvn
filesystem
# mkdir /mnt/docs
# mount -t davfs https://sandbox.ascii164.com/documents/
/mnt/docs
# mount
# ls /mnt/docs

36. EST autov ersioning
T
SVN Client Delta-V
Apache httpd
WebDAV
HTTP
libsvn
filesystem
# svn ls https://sandbox.ascii164.com/documents/

37. MORE RESOUR
Further ResourcesS
CE
● http://svnbook.red-bean.com/

38. CO ME
W EL
STI ONS
Q UE
ALL

39. BCN S udoers
javier@rodriguez.org.mx
@codehead

40. SVN Client Delta-V
Apache httpd
WebDAV
HTTP
libsvn
filesystem

41. <Location /svn>
DAV svn
SVNParentPath /var/lib/svn
AuthBasicProvider ldap
AuthzLDAPAuthoritative off
AuthType Basic
AuthName "Document Repository"
AuthLDAPURL ldap://localhost/ou=Users,dc=company,dc=com?uid?sub?
require valid-user
</Location>

42. SVN Client Delta-V
Apache httpd
WebDAV Client WebDAV
Web Browser HTTP
libsvn
filesystem

43. svn ls https://sandbox.company.com/svn/repo/

44. SVN Client Delta-V
WebDAV Client WebDAV Apache
Web Browser HTTP
libsvn
filesystem

45. curl https://sandbox.company.com/svn/repo/

46. ersioning
Autov

47. SVN Client Delta-V
WebDAV Client WebDAV Apache
Web Browser HTTP
libsvn
filesystem

48. <Location /documents>
DAV svn
SVNPath /var/lib/svn/docrepo
SVNAutoVersioning on
ModMimeUsePathInfo on
AuthBasicProvider ldap
AuthzLDAPAuthoritative off
AuthType Basic
AuthName "Document Repository"
AuthLDAPURL ldap://localhost/ou=Users,dc=company,dc=com?uid?sub?
require valid-user
</Location>

49. Client Software