add ability to import ics attachments into the calendar

[ChristophWurst]

fixes: https://github.com/owncloud/mail/issues/79

TODO:

• show import button
• download attachment file
• select calendar
• push ics content to the dav endpoint
• show import button only if caldav is enabled/available
• add ES6 promise poly fill
• list only writable calendars

BUGS:

• fix attachment text width if the import button is shown
• popover position
• some .ics file imports fail HTTP/1.1 400 Every VEVENT in this object must have identical UIDs

FUTURE IDEAS

• Show a preview of the calendar data

[mention-bot]

By analyzing the blame information on this pull request, we identified @jakobsack, @DeepDiver1975 and @jancborchardt to be potential reviewers

[ChristophWurst]

[DeepDiver1975]

@ChristophWurst I assume dav.NS_* are all undefined

[ChristophWurst]

Those are only defined in calendar: https://github.com/owncloud/calendar/blob/8e32fee4f2bf1346e987c23d2d0ab05cebcefd40/js/app/service/davclient.js#L39-L43

[ChristophWurst]

[jancborchardt]

Ooooh that's awesome! :)

I would now even (maybe) for the ics files consolidate the download and save to Files action into a 3-dot menu cause they are leaa important now.

[ChristophWurst]

I would now even (maybe) for the ics files consolidate the download and save to Files action into a 3-dot menu cause they are leaa important now.

That's my plan, but I'd rather do that in a follow up PR

[ChristophWurst]

@DeepDiver1975 when PUTing the file to the selected calendar, I get the following error:

{"reqId":"dnA7v9MDCVi6pPDB+eeu","remoteAddr":"::1","app":"webdav","message":"Exception: {\"Message\":\"HTTP\\\/1.1 400 Namespace prefix c on calendar-description is not defined\\n on line 5, column 28\",\"Exception\":\"Sabre\\\\DAV\\\\Exception\\\\BadRequest\",\"Code\":0,\"Trace\":\"#0 [internal function]: Sabre\\\\DAV\\\\CorePlugin->httpPropFind(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#1 \\\/home\\\/christoph\\\/workspace\\\/owncloud\\\/3rdparty\\\/sabre\\\/event\\\/lib\\\/EventEmitterTrait.php(105): call_user_func_array(Array, Array)\\n#2 \\\/home\\\/christoph\\\/workspace\\\/owncloud\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(459): Sabre\\\\Event\\\\EventEmitter->emit('method:PROPFIND', Array)\\n#3 \\\/home\\\/christoph\\\/workspace\\\/owncloud\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/Server.php(248): Sabre\\\\DAV\\\\Server->invokeMethod(Object(Sabre\\\\HTTP\\\\Request), Object(Sabre\\\\HTTP\\\\Response))\\n#4 \\\/home\\\/christoph\\\/workspace\\\/owncloud\\\/apps\\\/dav\\\/lib\\\/server.php(162): Sabre\\\\DAV\\\\Server->exec()\\n#5 \\\/home\\\/christoph\\\/workspace\\\/owncloud\\\/apps\\\/dav\\\/appinfo\\\/v2\\\/remote.php(29): OCA\\\\DAV\\\\Server->exec()\\n#6 \\\/home\\\/christoph\\\/workspace\\\/owncloud\\\/remote.php(164): require_once('\\\/home\\\/christoph...')\\n#7 {main}\",\"File\":\"\\\/home\\\/christoph\\\/workspace\\\/owncloud\\\/3rdparty\\\/sabre\\\/dav\\\/lib\\\/DAV\\\/CorePlugin.php\",\"Line\":322,\"User\":\"user\"}","level":4,"time":"2016-05-04T10:10:09+00:00","method":"PROPFIND","url":"\/remote.php\/dav\/calendars\/user","user":"user"}

Any idea what I'm doing wrong?

[ChristophWurst]

I'd like to refactor the code a little bit to allow registering different attachment preview generators so we can preview other file types too in the future. To keep this PR reviewable, I will do that in a follow-up PR.

[ChristophWurst]

• TODO: update changelog

[ChristophWurst]

@jyaworski @jancborchardt @Gomez @tahaalibra @DeepDiver1975 this is ready to review :-)

[ChristophWurst]

• rebase destroyed the json structure

[tahaalibra]

it is working great here, it shows the + button

but here it doesn't show + button for the same file ( here the difference is that the email was a forwarded email, but in the first case where it is showing + button, it was a new email)

[ChristophWurst]

@tahaalibra the + Button is only shown for the MIME type 'text/calendar'. Could you please check the MIME type of that file? I assume it's a different type as the calendar icon is also not shown.

[tahaalibra]

i am talking about file meetup.ics, its the same file on both email (ignore contact_birt..)

[ChristophWurst]

Me too. Check the icon, it's not the same ;-) Could you please debug this so we know what exact MIME type the second file has? Thanks

[Gomez]

Works perfect for me. Lets get it in and solve following problems on the way...