/*
**
** Copyright 2009, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** See the License for the specific language governing permissions and
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** limitations under the License.
*/
package com.android.calendar;
import static android.provider.CalendarContract.EXTRA_EVENT_BEGIN_TIME;
import static android.provider.CalendarContract.EXTRA_EVENT_END_TIME;
import static android.provider.CalendarContract.Attendees.ATTENDEE_STATUS;
import static android.provider.CalendarContract.Attendees.ATTENDEE_STATUS_ACCEPTED;
import static android.provider.CalendarContract.Attendees.ATTENDEE_STATUS_DECLINED;
import static android.provider.CalendarContract.Attendees.ATTENDEE_STATUS_NONE;
import static android.provider.CalendarContract.Attendees.ATTENDEE_STATUS_TENTATIVE;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.ContentUris;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.CalendarContract.Events;
import android.text.TextUtils;
import android.util.Base64;
import android.util.Log;
import com.android.calendarcommon.DateException;
public class GoogleCalendarUriIntentFilter extends Activity {
private static final String TAG = "GoogleCalendarUriIntentFilter";
private static final int EVENT_INDEX_ID = 0;
private static final int EVENT_INDEX_START = 1;
private static final int EVENT_INDEX_END = 2;
private static final int EVENT_INDEX_DURATION = 3;
private static final String[] EVENT_PROJECTION = new String[] {
Events._ID, // 0
Events.DTSTART, // 1
Events.DTEND, // 2
Events.DURATION, // 3
};
/**
* Extracts the ID from the eid parameter of a URI.
*
* The URI contains an "eid" parameter, which is comprised of an ID, followed by a space,
* followed by some other stuff. This is Base64-encoded before being added to the URI.
*
* @param uri incoming request
* @return the decoded ID
*/
private String extractEid(Uri uri) {
try {
String eid = uri.getQueryParameter("eid");
if (eid == null) {
return null;
}
byte[] decodedBytes = Base64.decode(eid, Base64.DEFAULT);
int spacePosn;
for (spacePosn = 0; spacePosn < decodedBytes.length; spacePosn++) {
if (decodedBytes[spacePosn] == ' ') {
break;
}
}
return new String(decodedBytes, 0, spacePosn);
} catch (RuntimeException e) {
Log.w(TAG, "Punting malformed URI " + uri);
return null;
}
}
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
Intent intent = getIntent();
if (intent != null) {
Uri uri = intent.getData();
if (uri != null) {
String eid = extractEid(uri);
if (eid != null) {
String selection = Events._SYNC_ID + " LIKE \"%/" + eid + "\"";
Cursor eventCursor = managedQuery(Events.CONTENT_URI, EVENT_PROJECTION,
selection, null, null);
if (eventCursor != null && eventCursor.getCount() > 0) {
if (eventCursor.getCount() > 1) {
// TODO what to do when there's more than one match?
//
// Probably the case of multiple calendar having the
// same event.
//
// If the intent has info about account (Gmail
// hashes the account name in some cases), we can
// try to match it.
//
// Otherwise, pull up the copy with higher permission level.
Log.i(TAG, "NOTE: found " + eventCursor.getCount()
+ " matches on event with id='" + eid + "'");
}
// Get info from Cursor
while (eventCursor.moveToNext()) {
int eventId = eventCursor.getInt(EVENT_INDEX_ID);
long startMillis = eventCursor.getLong(EVENT_INDEX_START);
long endMillis = eventCursor.getLong(EVENT_INDEX_END);
if (endMillis == 0) {
String duration = eventCursor.getString(EVENT_INDEX_DURATION);
if (TextUtils.isEmpty(duration)) {
continue;
}
try {
Duration d = new Duration();
d.parse(duration);
endMillis = startMillis + d.getMillis();
if (endMillis < startMillis) {
continue;
}
} catch (DateException e) {
continue;
}
}
// Pick up attendee status action from uri clicked
int attendeeStatus = ATTENDEE_STATUS_NONE;
if ("RESPOND".equals(uri.getQueryParameter("action"))) {
try {
switch (Integer.parseInt(uri.getQueryParameter("rst"))) {
case 1: // Yes
attendeeStatus = ATTENDEE_STATUS_ACCEPTED;
break;
case 2: // No
attendeeStatus = ATTENDEE_STATUS_DECLINED;
break;
case 3: // Maybe
attendeeStatus = ATTENDEE_STATUS_TENTATIVE;
break;
}
} catch (NumberFormatException e) {
// ignore this error as if the response code
// wasn't in the uri.
}
}
// Send intent to calendar app
Uri calendarUri = ContentUris.withAppendedId(Events.CONTENT_URI,
eventId);
intent = new Intent(Intent.ACTION_VIEW, calendarUri);
intent.putExtra(EXTRA_EVENT_BEGIN_TIME, startMillis);
intent.putExtra(EXTRA_EVENT_END_TIME, endMillis);
if (attendeeStatus != ATTENDEE_STATUS_NONE) {
intent.putExtra(ATTENDEE_STATUS, attendeeStatus);
}
startActivity(intent);
finish();
return;
}
}
}
}
// Can't handle the intent. Pass it on to the next Activity.
try {
startNextMatchingActivity(intent);
} catch (ActivityNotFoundException ex) {
// no browser installed? Just drop it.
}
}
finish();
}
}