protected void setClientAllday(VProperty property) {
if (property != null) {
// set VALUE=DATE param
if (!property.hasParam("VALUE")) {
property.addParam("VALUE", "DATE");
}
// remove TZID
property.removeParam("TZID");
String value = property.getValue();
if (value.length() != 8) {
// try to convert datetime value to date value
try {
Calendar calendar = Calendar.getInstance();
SimpleDateFormat dateParser = new SimpleDateFormat("yyyyMMdd'T'HHmmss");
calendar.setTime(dateParser.parse(value));
calendar.add(Calendar.HOUR_OF_DAY, 12);
SimpleDateFormat dateFormatter = new SimpleDateFormat("yyyyMMdd");
value = dateFormatter.format(calendar.getTime());
} catch (ParseException e) {
LOGGER.warn("Invalid date value in allday event: " + value);
}
}
property.setValue(value);
}
}
/**
* Get vProperty value by name.
*
* @param name property name
* @return property value
*/
public String getPropertyValue(String name) {
VProperty property = getProperty(name);
if (property != null) {
return property.getValue();
} else {
return null;
}
}
/**
* Get vProperty by name.
*
* @param name property name
* @return property object
*/
public VProperty getProperty(String name) {
if (properties != null) {
for (VProperty property : properties) {
if (property.getKey() != null && property.getKey().equalsIgnoreCase(name)) {
return property;
}
}
}
return null;
}
protected void handleLine(String line, BufferedReader reader) throws IOException {
// skip empty lines
if (line.length() > 0) {
VProperty property = new VProperty(line);
// inner object
if ("BEGIN".equals(property.getKey())) {
addVObject(new VObject(property, reader));
} else if (property.getKey() != null) {
addProperty(property);
}
}
}
/**
* Set vProperty value on vObject, remove property if value is null.
*
* @param name property name
* @param value property value
*/
public void setPropertyValue(String name, String value) {
if (value == null) {
removeProperty(name);
} else {
VProperty property = getProperty(name);
if (property == null) {
property = new VProperty(name, value);
addProperty(property);
} else {
property.setValue(value);
}
}
}
/**
* Get multivalued vProperty by name.
*
* @param name property name
* @return property list
*/
public List<VProperty> getProperties(String name) {
List<VProperty> result = null;
if (properties != null) {
for (VProperty property : properties) {
if (property.getKey() != null && property.getKey().equalsIgnoreCase(name)) {
if (result == null) {
result = new ArrayList<VProperty>();
}
result.add(property);
}
}
}
return result;
}
protected String getAttendeeStatus() {
String status = null;
List<VProperty> attendeeProperties = getFirstVeventProperties("ATTENDEE");
if (attendeeProperties != null) {
for (VProperty property : attendeeProperties) {
String attendeeEmail = getEmailValue(property);
if (email.equalsIgnoreCase(attendeeEmail) && property.hasParam("PARTSTAT")) {
// found current user attendee line
status = property.getParam("PARTSTAT").getValue();
break;
}
}
}
return status;
}
protected void fixAlarm(VObject vObject, boolean fromServer) {
if (vObject.vObjects != null) {
if (Settings.getBooleanProperty("davmail.caldavDisableReminders", false)) {
ArrayList<VObject> vAlarms = null;
for (VObject vAlarm : vObject.vObjects) {
if ("VALARM".equals(vAlarm.type)) {
if (vAlarms == null) {
vAlarms = new ArrayList<VObject>();
}
vAlarms.add(vAlarm);
}
}
// remove all vAlarms
if (vAlarms != null) {
for (VObject vAlarm : vAlarms) {
vObject.vObjects.remove(vAlarm);
}
}
} else {
for (VObject vAlarm : vObject.vObjects) {
if ("VALARM".equals(vAlarm.type)) {
String action = vAlarm.getPropertyValue("ACTION");
if (fromServer
&& "DISPLAY".equals(action)
// convert DISPLAY to AUDIO only if user defined an alarm sound
&& Settings.getProperty("davmail.caldavAlarmSound") != null) {
// Convert alarm to audio for iCal
vAlarm.setPropertyValue("ACTION", "AUDIO");
if (vAlarm.getPropertyValue("ATTACH") == null) {
// Add defined sound into the audio alarm
VProperty vProperty =
new VProperty("ATTACH", Settings.getProperty("davmail.caldavAlarmSound"));
vProperty.addParam("VALUE", "URI");
vAlarm.addProperty(vProperty);
}
} else if (!fromServer && "AUDIO".equals(action)) {
// Use the alarm action that exchange (and blackberry) understand
// (exchange and blackberry don't understand audio actions)
vAlarm.setPropertyValue("ACTION", "DISPLAY");
}
}
}
}
}
}
/**
* Write VObject to writer.
*
* @param writer buffered writer
*/
public void writeTo(ICSBufferedWriter writer) {
writer.write("BEGIN:");
writer.writeLine(type);
if (properties != null) {
for (VProperty property : properties) {
writer.writeLine(property.toString());
}
}
if (vObjects != null) {
for (VObject object : vObjects) {
object.writeTo(writer);
}
}
writer.write("END:");
writer.writeLine(type);
}
/**
* Add vProperty.
*
* @param property vProperty
*/
public void addProperty(VProperty property) {
if (property.getValue() != null) {
if (properties == null) {
properties = new ArrayList<VProperty>();
}
properties.add(property);
}
}
/**
* Create VObject with given type
*
* @param beginProperty first line property
* @param reader stream reader just after the BEGIN:TYPE line
* @throws IOException on error
*/
public VObject(VProperty beginProperty, BufferedReader reader) throws IOException {
if (!"BEGIN".equals(beginProperty.getKey())) {
throw new IOException("Invalid first line: " + beginProperty);
}
type = beginProperty.getValue();
String beginLine = "BEGIN:" + type;
String endLine = "END:" + type;
String line = reader.readLine();
while (line != null && !line.startsWith(endLine)) {
// ignore invalid BEGIN line inside object (Sogo Carddav issue)
if (!beginLine.equals(line)) {
handleLine(line, reader);
}
line = reader.readLine();
}
// ignore missing END:VCALENDAR line on modified occurrences
}
protected void splitExDate(VObject vObject) {
List<VProperty> exDateProperties = vObject.getProperties("EXDATE");
if (exDateProperties != null) {
for (VProperty property : exDateProperties) {
String value = property.getValue();
if (value.indexOf(',') >= 0) {
// split property
vObject.removeProperty(property);
for (String singleValue : value.split(",")) {
VProperty singleProperty = new VProperty("EXDATE", singleValue);
singleProperty.setParams(property.getParams());
vObject.addProperty(singleProperty);
}
}
}
}
}
/**
* Get email from property value.
*
* @param property property
* @return email value
*/
public String getEmailValue(VProperty property) {
if (property == null) {
return null;
}
String propertyValue = property.getValue();
if (propertyValue != null
&& (propertyValue.startsWith("MAILTO:") || propertyValue.startsWith("mailto:"))) {
return propertyValue.substring(7);
} else {
return propertyValue;
}
}
private void fixTimezone() {
if (vTimezone != null && vTimezone.vObjects != null && vTimezone.vObjects.size() > 2) {
VObject standard = null;
VObject daylight = null;
for (VObject vObject : vTimezone.vObjects) {
if ("STANDARD".equals(vObject.type)) {
if (standard == null
|| (vObject
.getPropertyValue("DTSTART")
.compareTo(standard.getPropertyValue("DTSTART"))
> 0)) {
standard = vObject;
}
}
if ("DAYLIGHT".equals(vObject.type)) {
if (daylight == null
|| (vObject
.getPropertyValue("DTSTART")
.compareTo(daylight.getPropertyValue("DTSTART"))
> 0)) {
daylight = vObject;
}
}
}
vTimezone.vObjects.clear();
vTimezone.vObjects.add(standard);
vTimezone.vObjects.add(daylight);
}
// fix 3569922: quick workaround for broken Israeli Timezone issue
if (vTimezone != null && vTimezone.vObjects != null) {
for (VObject vObject : vTimezone.vObjects) {
VProperty rrule = vObject.getProperty("RRULE");
if (rrule != null
&& rrule.getValues().size() == 3
&& "BYDAY=-2SU".equals(rrule.getValues().get(1))) {
rrule.getValues().set(1, "BYDAY=4SU");
}
}
}
}
protected void setServerAllday(VProperty property) {
if (vTimezone != null) {
// set TZID param
if (!property.hasParam("TZID")) {
property.addParam("TZID", vTimezone.getPropertyValue("TZID"));
}
// remove VALUE
property.removeParam("VALUE");
String value = property.getValue();
if (value.length() != 8) {
LOGGER.warn("Invalid date value in allday event: " + value);
}
property.setValue(property.getValue() + "T000000");
}
}
/**
* Build recipients value for VCalendar.
*
* @param isNotification if true, filter recipients that should receive meeting notifications
* @return notification/event recipients
*/
public Recipients getRecipients(boolean isNotification) {
HashSet<String> attendees = new HashSet<String>();
HashSet<String> optionalAttendees = new HashSet<String>();
// get recipients from first VEVENT
List<VProperty> attendeeProperties = getFirstVeventProperties("ATTENDEE");
if (attendeeProperties != null) {
for (VProperty property : attendeeProperties) {
// exclude current user and invalid values from recipients
// also exclude no action attendees
String attendeeEmail = getEmailValue(property);
if (!email.equalsIgnoreCase(attendeeEmail)
&& attendeeEmail != null
&& attendeeEmail.indexOf('@') >= 0
// return all attendees for user calendar folder, filter for notifications
&& (!isNotification
// notify attendee if reply explicitly requested
|| (property.hasParam("RSVP", "TRUE"))
|| (
// workaround for iCal bug: do not notify if reply explicitly not requested
!(property.hasParam("RSVP", "FALSE"))
&& ((property.hasParam("PARTSTAT", "NEEDS-ACTION")
// need to include other PARTSTATs participants for CANCEL notifications
|| property.hasParam("PARTSTAT", "ACCEPTED")
|| property.hasParam("PARTSTAT", "DECLINED")
|| property.hasParam("PARTSTAT", "TENTATIVE")))))) {
if (property.hasParam("ROLE", "OPT-PARTICIPANT")) {
optionalAttendees.add(attendeeEmail);
} else {
attendees.add(attendeeEmail);
}
}
}
}
Recipients recipients = new Recipients();
recipients.organizer = getEmailValue(getFirstVeventProperty("ORGANIZER"));
recipients.attendees = StringUtil.join(attendees, ", ");
recipients.optionalAttendees = StringUtil.join(optionalAttendees, ", ");
return recipients;
}
private void fixAttendees(VObject vObject, boolean fromServer) {
if (vObject.properties != null) {
for (VProperty property : vObject.properties) {
if ("ATTENDEE".equalsIgnoreCase(property.getKey())) {
if (fromServer) {
// If this is coming from the server, strip out RSVP for this
// user as an attendee where the partstat is something other
// than PARTSTAT=NEEDS-ACTION since the RSVP confuses iCal4 into
// thinking the attendee has not replied
if (isCurrentUser(property) && property.hasParam("RSVP", "TRUE")) {
VProperty.Param partstat = property.getParam("PARTSTAT");
if (partstat == null || !"NEEDS-ACTION".equals(partstat.getValue())) {
property.removeParam("RSVP");
}
}
} else {
property.setValue(replaceIcal4Principal(property.getValue()));
}
}
}
}
}
protected void fixVCalendar(boolean fromServer) {
// set iCal 4 global X-CALENDARSERVER-ACCESS from CLASS
if (fromServer) {
setPropertyValue("X-CALENDARSERVER-ACCESS", getCalendarServerAccess());
}
// iCal 4 global X-CALENDARSERVER-ACCESS
String calendarServerAccess = getPropertyValue("X-CALENDARSERVER-ACCESS");
String now = ExchangeSession.getZuluDateFormat().format(new Date());
// fix method from iPhone
if (!fromServer && getPropertyValue("METHOD") == null) {
setPropertyValue("METHOD", "PUBLISH");
}
// rename TZID for maximum iCal/iPhone compatibility
String tzid = null;
if (fromServer) {
// get current tzid
VObject vObject = vTimezone;
if (vObject != null) {
String currentTzid = vObject.getPropertyValue("TZID");
// fix TZID with \n (Exchange 2010 bug)
if (currentTzid != null && currentTzid.endsWith("\n")) {
currentTzid = currentTzid.substring(0, currentTzid.length() - 1);
vObject.setPropertyValue("TZID", currentTzid);
}
if (currentTzid != null && currentTzid.indexOf(' ') >= 0) {
try {
tzid = ResourceBundle.getBundle("timezones").getString(currentTzid);
vObject.setPropertyValue("TZID", tzid);
} catch (MissingResourceException e) {
LOGGER.debug("Timezone " + currentTzid + " not found in rename table");
}
}
}
}
if (!fromServer) {
fixTimezone();
}
// iterate over vObjects
for (VObject vObject : vObjects) {
if ("VEVENT".equals(vObject.type)) {
if (calendarServerAccess != null) {
vObject.setPropertyValue("CLASS", getEventClass(calendarServerAccess));
// iCal 3, get X-CALENDARSERVER-ACCESS from local VEVENT
} else if (vObject.getPropertyValue("X-CALENDARSERVER-ACCESS") != null) {
vObject.setPropertyValue(
"CLASS", getEventClass(vObject.getPropertyValue("X-CALENDARSERVER-ACCESS")));
}
if (fromServer) {
// remove organizer line for event without attendees for iPhone
if (vObject.getProperty("ATTENDEE") == null) {
vObject.setPropertyValue("ORGANIZER", null);
}
// detect allday and update date properties
if (isCdoAllDay(vObject)) {
setClientAllday(vObject.getProperty("DTSTART"));
setClientAllday(vObject.getProperty("DTEND"));
setClientAllday(vObject.getProperty("RECURRENCE-ID"));
}
String cdoBusyStatus = vObject.getPropertyValue("X-MICROSOFT-CDO-BUSYSTATUS");
if (cdoBusyStatus != null) {
vObject.setPropertyValue(
"TRANSP", !"FREE".equals(cdoBusyStatus) ? "OPAQUE" : "TRANSPARENT");
}
// Apple iCal doesn't understand this key, and it's entourage
// specific (i.e. not needed by any caldav client): strip it out
vObject.removeProperty("X-ENTOURAGE_UUID");
splitExDate(vObject);
// remove empty properties
if ("".equals(vObject.getPropertyValue("LOCATION"))) {
vObject.removeProperty("LOCATION");
}
if ("".equals(vObject.getPropertyValue("DESCRIPTION"))) {
vObject.removeProperty("DESCRIPTION");
}
if ("".equals(vObject.getPropertyValue("CLASS"))) {
vObject.removeProperty("CLASS");
}
// rename TZID
if (tzid != null) {
VProperty dtStart = vObject.getProperty("DTSTART");
if (dtStart != null && dtStart.getParam("TZID") != null) {
dtStart.setParam("TZID", tzid);
}
VProperty dtEnd = vObject.getProperty("DTEND");
if (dtEnd != null && dtStart.getParam("TZID") != null) {
dtEnd.setParam("TZID", tzid);
}
VProperty reccurrenceId = vObject.getProperty("RECURRENCE-ID");
if (reccurrenceId != null && reccurrenceId.getParam("TZID") != null) {
reccurrenceId.setParam("TZID", tzid);
}
}
// remove unsupported attachment reference
if (vObject.getProperty("ATTACH") != null) {
List<String> toRemoveValues = null;
List<String> values = vObject.getProperty("ATTACH").getValues();
for (String value : values) {
if (value.indexOf("CID:") >= 0) {
if (toRemoveValues == null) {
toRemoveValues = new ArrayList<String>();
}
toRemoveValues.add(value);
}
}
if (toRemoveValues != null) {
values.removeAll(toRemoveValues);
if (values.size() == 0) {
vObject.removeProperty("ATTACH");
}
}
}
} else {
// add organizer line to all events created in Exchange for active sync
String organizer = getEmailValue(vObject.getProperty("ORGANIZER"));
if (organizer == null) {
vObject.setPropertyValue("ORGANIZER", "MAILTO:" + email);
} else if (!email.equalsIgnoreCase(organizer)
&& vObject.getProperty("X-MICROSOFT-CDO-REPLYTIME") == null) {
vObject.setPropertyValue("X-MICROSOFT-CDO-REPLYTIME", now);
}
// set OWA allday flag
vObject.setPropertyValue(
"X-MICROSOFT-CDO-ALLDAYEVENT", isAllDay(vObject) ? "TRUE" : "FALSE");
vObject.setPropertyValue(
"X-MICROSOFT-CDO-BUSYSTATUS",
!"TRANSPARENT".equals(vObject.getPropertyValue("TRANSP")) ? "BUSY" : "FREE");
if (isAllDay(vObject)) {
// convert date values to outlook compatible values
setServerAllday(vObject.getProperty("DTSTART"));
setServerAllday(vObject.getProperty("DTEND"));
} else {
fixTzid(vObject.getProperty("DTSTART"));
fixTzid(vObject.getProperty("DTEND"));
}
}
fixAttendees(vObject, fromServer);
fixAlarm(vObject, fromServer);
}
}
}
private void fixTzid(VProperty property) {
if (property != null && !property.hasParam("TZID")) {
property.addParam("TZID", vTimezone.getPropertyValue("TZID"));
}
}
private boolean isCurrentUser(VProperty property) {
return property.getValue().equalsIgnoreCase("mailto:" + email);
}
protected boolean isAllDay(VObject vObject) {
VProperty dtstart = vObject.getProperty("DTSTART");
return dtstart != null && dtstart.hasParam("VALUE", "DATE");
}
