1. Implementing KDE-pim support
for google calendar and contacts
Adenilson Cavalcanti da Silva
Bsc. Msc.
Senior Developer
adenilson.silva@indt.org.br

2. why?

3. Why google and KDE?
- beautiful!
- documentation
- PoC
- KDE: community

4. What is community?

7. Good community: where is easy for
new coders, designers, users
to contribute.

8. Video: gcontacts + KAddressbook

9. Video: gcalendar + Kontact

10. KDE + libgcal
Akonadi resource
http://techbase.kde.org/Schedules/KDE4/4.3_Feature_Plan#kdepim
KDE planet and commits digest!
http://www.kdedevelopers.org/node/3931

11. Gcalendar and contacts
*rip off from EA...

12. Top 10 bugs: 2009-06-16

13. Top 10 bugs: 2009-06-16

14. Top 10 bugs: 2009-06-16

15. Top 10 bugs: 2009-06-16

16. Tip: be open to newcomers

18. How google data protocol works?
- REST + atom (i.e. HTTP + XML)
- Allows: get all, add/edit/delete, query, others
- Sync: tricky!

19. Authentication
- HTTPS POST to feed (clientlogin)
- You get:

20. Add

21. Edit

22. Delete

23. Who implements gdata protocol?

24. libgcal
- dependencies: libxml, libcurl
- BSD license
- features
- origin: opensync python plugin by Ehabkost

25. Syncml + libgcal

26. Libgcal: unit tests

27. Libgcal: unit tests

28. Libgcal: unit tests

29. Look mom! libgcal on google blog!

30. KDE4 + PIM = akonadi

31. Akonadi support
protocol support
IMAP ++
POP3 +++
vcard +++
ical +++
googledata +++
Exchange ++
Kolab ++
GSoC: Syncml.

32. Akonadi (mis)features
good: D-BUS, LGPL, asynchronous, Qt
BAD: mysql
branch/akonadimobile has support for sqlite!

33. How difficult is akonadi?
Coding:
- Gcontacts: 3 weeks
- gcalendar: 3 days
question? ALT+F2

34. KDE devel
- distro really up-to-date (e.g. OpenSuse)
- run the trunk! YMMV

35. Sync considerations

36. What time is it?

37. Inclusive query

38. Added or edited? Cant' tell!

39. Bugs X Programmers

40. How to add?

41. Documentation may be wrong...
Written: If you received the redirect, then send
the same POST request again, with the same
Authorization header and the same content, but
with the gsessionid parameter appended.
Should be: When you receive the redirect, send
the same POST request, with the same
Authorization header, to the location specified in
the response location.

42. Parsing is the root of evil...
result = org.xml.sax.SAXParseException: The
processing instruction
target matching "[xX][mM][lL]" is not
allowed.

43. Parsing is the root of evil...

44. Sync or Async?

45. Sync or Async?

46. Sync or Async?

47. Rant1: is XML or iCalendar?

48. Rant2: dichotomy cal x contacts

49. Rant3: is 2.0 == 2.1?

50. Rant4: Pessimization

51. Rant4: Pessimisation

52. Rant4: Pessimisation

53. Rant4: Pessimisation

54. The end?

55. Special thanks
- Kevin Krammer, Igor Trindade, Mike Arthur
- Friends
- INdT