public override string SerializeToString(object obj)
{
try
{
ITrigger t = obj as ITrigger;
if (t != null)
{
// Push the trigger onto the serialization stack
SerializationContext.Push(t);
try
{
ISerializerFactory factory = GetService <ISerializerFactory>();
if (factory != null)
{
Type valueType = t.GetValueType() ?? typeof(TimeSpan);
IStringSerializer serializer = factory.Build(valueType, SerializationContext) as IStringSerializer;
if (serializer != null)
{
object value = (valueType == typeof(IDateTime)) ? (object)t.DateTime : (object)t.Duration;
return(serializer.SerializeToString(value));
}
}
}
finally
{
// Pop the trigger off the serialization stack
SerializationContext.Pop();
}
}
return(null);
}
catch
{
return(null);
}
}
public override string SerializeToString(object obj)
{
IRecurrencePattern recur = obj as IRecurrencePattern;
ISerializerFactory factory = GetService<ISerializerFactory>();
if (recur != null && factory != null)
{
// Push the recurrence pattern onto the serialization stack
SerializationContext.Push(recur);
List<string> values = new List<string>();
values.Add("FREQ=" + Enum.GetName(typeof(FrequencyType), recur.Frequency).ToUpper());
//-- FROM RFC2445 --
//The INTERVAL rule part contains a positive integer representing how
//often the recurrence rule repeats. The default value is "1", meaning
//every second for a SECONDLY rule, or every minute for a MINUTELY
//rule, every hour for an HOURLY rule, every day for a DAILY rule,
//every week for a WEEKLY rule, every month for a MONTHLY rule and
//every year for a YEARLY rule.
int interval = recur.Interval;
if (interval == int.MinValue)
interval = 1;
if (interval != 1)
values.Add("INTERVAL=" + interval);
if (recur.Until != DateTime.MinValue)
{
IStringSerializer serializer = factory.Build(typeof(IDateTime), SerializationContext) as IStringSerializer;
if (serializer != null)
{
IDateTime until = new iCalDateTime(recur.Until);
until.HasTime = true;
values.Add("UNTIL=" + serializer.SerializeToString(until));
}
}
if (recur.FirstDayOfWeek != DayOfWeek.Monday)
values.Add("WKST=" + Enum.GetName(typeof(DayOfWeek), recur.FirstDayOfWeek).ToUpper().Substring(0, 2));
if (recur.Count != int.MinValue)
values.Add("COUNT=" + recur.Count);
if (recur.ByDay.Count > 0)
{
List<string> bydayValues = new List<string>();
IStringSerializer serializer = factory.Build(typeof(IWeekDay), SerializationContext) as IStringSerializer;
if (serializer != null)
{
foreach (WeekDay byday in recur.ByDay)
bydayValues.Add(serializer.SerializeToString(byday));
}
values.Add("BYDAY=" + string.Join(",", bydayValues.ToArray()));
}
SerializeByValue(values, recur.ByHour, "BYHOUR");
SerializeByValue(values, recur.ByMinute, "BYMINUTE");
SerializeByValue(values, recur.ByMonth, "BYMONTH");
SerializeByValue(values, recur.ByMonthDay, "BYMONTHDAY");
SerializeByValue(values, recur.BySecond, "BYSECOND");
SerializeByValue(values, recur.BySetPosition, "BYSETPOS");
SerializeByValue(values, recur.ByWeekNo, "BYWEEKNO");
SerializeByValue(values, recur.ByYearDay, "BYYEARDAY");
// Pop the recurrence pattern off the serialization stack
SerializationContext.Pop();
return Encode(recur, string.Join(";", values.ToArray()));
}
return null;
}
public override string SerializeToString(object obj)
{
ICalendarProperty prop = obj as ICalendarProperty;
if (prop != null &&
prop.Value != null)
{
// Don't serialize the property if the value is null
// Push this object on the serialization context.
SerializationContext.Push(prop);
IDataTypeMapper mapper = GetService <IDataTypeMapper>();
Type serializedType = mapper.GetPropertyMapping(prop);
// Build a list of values that are to be serialized.
List <object> objs = new List <object>();
if (!(prop.Value is string) &&
!(typeof(IEnumerable <string>).IsAssignableFrom(serializedType)) &&
prop.Value is IEnumerable)
{
foreach (object v in (IEnumerable)prop.Value)
{
objs.Add(v);
}
}
else
{
objs.Add(prop.Value);
}
// Get a serializer factory that we can use to serialize
// the property and parameter values
ISerializerFactory sf = GetService <ISerializerFactory>();
StringBuilder result = new StringBuilder();
foreach (object v in objs)
{
// Get a serializer to serialize the property's value.
// If we can't serialize the property's value, the next step is worthless anyway.
IStringSerializer valueSerializer = sf.Build(v.GetType(), SerializationContext) as IStringSerializer;
if (valueSerializer != null)
{
// Iterate through each value to be serialized,
// and give it a property (with parameters).
// FIXME: this isn't always the way this is accomplished.
// Multiple values can often be serialized within the
// same property. How should we fix this?
// NOTE:
// We Serialize the property's value first, as during
// serialization it may modify our parameters.
// FIXME: the "parameter modification" operation should
// be separated from serialization. Perhaps something
// like PreSerialize(), etc.
string value = valueSerializer.SerializeToString(v);
// Get the list of parameters we'll be serializing
ICalendarParameterList parameterList = prop.Parameters;
if (v is ICalendarDataType)
{
parameterList = ((ICalendarDataType)v).Parameters;
}
StringBuilder sb = new StringBuilder(prop.Name);
if (parameterList.Count > 0)
{
// Get a serializer for parameters
IStringSerializer parameterSerializer = sf.Build(typeof(ICalendarParameter), SerializationContext) as IStringSerializer;
if (parameterSerializer != null)
{
// Serialize each parameter
List <string> parameters = new List <string>();
foreach (ICalendarParameter param in parameterList)
{
parameters.Add(parameterSerializer.SerializeToString(param));
}
// Separate parameters with semicolons
sb.Append(";");
sb.Append(string.Join(";", parameters.ToArray()));
}
}
sb.Append(":");
sb.Append(value);
result.Append(TextUtil.WrapLines(sb.ToString()));
}
}
// Pop the object off the serialization context.
SerializationContext.Pop();
return(result.ToString());
}
return(null);
}
private string SerializeCalendar(IICalendar calendar)
{
return(_calendarSerializer.SerializeToString(calendar));
}
public ActionResult GetIcsForCalendar(int id)
{
DDay.iCal.iCalendar iCal = new DDay.iCal.iCalendar();
var lctrl = new LocationApiController();
var calctrl = new CalendarApiController();
var cal = calctrl.GetById(id);
EventLocation l = null;
iCal.Properties.Add(new CalendarProperty("X-WR-CALNAME", cal.Calendarname));
//Get normal events for calendar
var nectrl = new EventApiController();
foreach (var e in nectrl.GetAll().Where(x => x.calendarId == id))
{
// Create the event, and add it to the iCalendar
DDay.iCal.Event evt = iCal.Create <DDay.iCal.Event>();
var start = (DateTime)e.start;
evt.Start = new iCalDateTime(start.ToUniversalTime());
if (e.end != null)
{
var end = (DateTime)e.end;
evt.End = new iCalDateTime(end.ToUniversalTime());
}
evt.Description = this.GetDescription(e, CultureInfo.CurrentCulture.ToString());
evt.Summary = e.title;
evt.IsAllDay = e.allDay;
evt.Categories.AddRange(e.categories.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries).ToList());
//If it has a location fetch it
if (e.locationId != 0)
{
l = lctrl.GetById(e.locationId);
evt.Location = l.LocationName + "," + l.Street + "," + l.ZipCode + " " + l.City + "," + l.Country;
//evt.GeographicLocation = new GeographicLocation(Convert.ToDouble(l.lat,CultureInfo.InvariantCulture), Convert.ToDouble(l.lon, CultureInfo.InvariantCulture));
}
var attendes = new List <IAttendee>();
if (e.Organisator != null && e.Organisator != 0)
{
var ms = Services.MemberService;
var member = ms.GetById(e.Organisator);
string attendee = "MAILTO:" + member.Email;
IAttendee reqattendee = new DDay.iCal.Attendee(attendee)
{
CommonName = member.Name,
Role = "REQ-PARTICIPANT"
};
attendes.Add(reqattendee);
}
if (attendes != null && attendes.Count > 0)
{
evt.Attendees = attendes;
}
}
//Get recurring events
var rectrl = new REventApiController();
foreach (var e in rectrl.GetAll().Where(x => x.calendarId == id))
{
// Create the event, and add it to the iCalendar
DDay.iCal.Event evt = iCal.Create <DDay.iCal.Event>();
evt.Description = this.GetDescription(e, CultureInfo.CurrentCulture.ToString());
evt.Summary = e.title;
evt.IsAllDay = e.allDay;
evt.Categories.AddRange(e.categories.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries).ToList());
//If it has a location fetch it
if (e.locationId != 0)
{
l = lctrl.GetById(e.locationId);
evt.Location = l.LocationName + "," + l.Street + "," + l.ZipCode + " " + l.City + "," + l.Country;
//evt.GeographicLocation = new GeographicLocation(Convert.ToDouble(l.lat, CultureInfo.InvariantCulture), Convert.ToDouble(l.lon, CultureInfo.InvariantCulture));
}
RecurrencePattern rp = null;
var frequency = (FrequencyTypeEnum)e.frequency;
switch (frequency)
{
case FrequencyTypeEnum.Daily:
{
rp = new RecurrencePattern(FrequencyType.Daily);
break;
}
case FrequencyTypeEnum.Monthly:
{
rp = new RecurrencePattern(FrequencyType.Monthly);
break;
}
case FrequencyTypeEnum.Weekly:
{
rp = new RecurrencePattern(FrequencyType.Weekly);
break;
}
case FrequencyTypeEnum.Yearly:
{
rp = new RecurrencePattern(FrequencyType.Yearly);
break;
}
default:
{
rp = new RecurrencePattern(FrequencyType.Monthly);
break;
}
}
switch (e.day)
{
case (int)DayOfWeekEnum.Mon:
{
rp.ByDay.Add(new WeekDay(DayOfWeek.Monday));
break;
}
case (int)DayOfWeekEnum.Tue:
{
rp.ByDay.Add(new WeekDay(DayOfWeek.Tuesday));
break;
}
case (int)DayOfWeekEnum.Wed:
{
rp.ByDay.Add(new WeekDay(DayOfWeek.Wednesday));
break;
}
case (int)DayOfWeekEnum.Thu:
{
rp.ByDay.Add(new WeekDay(DayOfWeek.Thursday));
break;
}
case (int)DayOfWeekEnum.Fri:
{
rp.ByDay.Add(new WeekDay(DayOfWeek.Friday));
break;
}
case (int)DayOfWeekEnum.Sat:
{
rp.ByDay.Add(new WeekDay(DayOfWeek.Saturday));
break;
}
case (int)DayOfWeekEnum.Sun:
{
rp.ByDay.Add(new WeekDay(DayOfWeek.Sunday));
break;
}
}
evt.RecurrenceRules.Add(rp);
Schedule schedule = new Schedule(new ScheduleWidget.ScheduledEvents.Event()
{
Title = e.title,
DaysOfWeekOptions = (DayOfWeekEnum)e.day,
FrequencyTypeOptions = (FrequencyTypeEnum)e.frequency,
MonthlyIntervalOptions = (MonthlyIntervalEnum)e.monthly_interval
});
var occurence = Convert.ToDateTime(schedule.NextOccurrence(DateTime.Now));
evt.Start = new iCalDateTime(new DateTime(occurence.Year, occurence.Month, occurence.Day, e.start.Hour, e.start.Minute, 0));
var attendes = new List <IAttendee>();
if (e.Organisator != null && e.Organisator != 0)
{
var ms = Services.MemberService;
var member = ms.GetById(e.Organisator);
string attendee = "MAILTO:" + member.Email;
IAttendee reqattendee = new DDay.iCal.Attendee(attendee)
{
CommonName = member.Name,
Role = "REQ-PARTICIPANT"
};
attendes.Add(reqattendee);
}
if (attendes != null && attendes.Count > 0)
{
evt.Attendees = attendes;
}
}
// Create a serialization context and serializer factory.
// These will be used to build the serializer for our object.
ISerializationContext ctx = new SerializationContext();
ISerializerFactory factory = new DDay.iCal.Serialization.iCalendar.SerializerFactory();
// Get a serializer for our object
IStringSerializer serializer = factory.Build(iCal.GetType(), ctx) as IStringSerializer;
string output = serializer.SerializeToString(iCal);
var contentType = "text/calendar";
var bytes = Encoding.UTF8.GetBytes(output);
return(File(bytes, contentType, cal.Calendarname + ".ics"));
}
/// <summary>
/// Function is called to create the course ics file
/// Function is called everytime the course calendar needs to be updated
/// </summary>
/// <param name="id"></param>
public void CreateCourseCalendar(int id)
{
//Get the Course
var course = (from d in db.Courses
where d.ID == id
select new
{
d.StartDate,
d.EndDate,
d.Prefix,
d.Number,
d.Semester,
d.Year,
d.CourseMeetings,
d.CourseBreaks,
d.ID
}).FirstOrDefault();
//get course events
var events = (from e in db.Events
where e.Poster.AbstractCourseID == ActiveCourseUser.AbstractCourseID &&
e.StartDate >= course.StartDate &&
e.StartDate <= course.EndDate &&
e.Approved
select new
{
e.StartDate,
e.EndDate,
e.Title,
e.Description
}).ToList();
//Create the calendar object
iCalendar courseCalendar = new iCalendar();
//initalize the Calendar object
courseCalendar.AddTimeZone(DateTimeExtensions.GetTimeZone(((Course)ActiveCourseUser.AbstractCourse).TimeZoneOffset));
courseCalendar.Method = "PUBLISH";
courseCalendar.Name = "VCALENDAR";
courseCalendar.Version = "2.0";
courseCalendar.ProductID = "-//Washington State University//PLUS.OSBLE.org//EN";
courseCalendar.Scale = "GREGORIAN";
courseCalendar.AddProperty("X-WR-CALNAME", course.Prefix + "-" + course.Number + "-" + course.Semester + "-" + course.Year);
//get course breaks
if (ActiveCourseUser.AbstractCourse is Course && ((ActiveCourseUser.AbstractCourse as Course).ShowMeetings == true))
{
foreach (CourseMeeting cm in course.CourseMeetings)
{
StringBuilder rpPattern = new StringBuilder("FREQ=WEEKLY;UNTIL=");
rpPattern.Append(new iCalDateTime(course.EndDate.UTCToCourse(ActiveCourseUser.AbstractCourseID)).ToString(@"yyyyMMdd\THHmmss\Z"));
rpPattern.Append(";WKST=SU;BYDAY=");
if (cm.Sunday)
{
rpPattern.Append("SU,");
}
if (cm.Monday)
{
rpPattern.Append("MO,");
}
if (cm.Tuesday)
{
rpPattern.Append("TU,");
}
if (cm.Wednesday)
{
rpPattern.Append("WE,");
}
if (cm.Thursday)
{
rpPattern.Append("TH,");
}
if (cm.Friday)
{
rpPattern.Append("FR,");
}
if (cm.Saturday)
{
rpPattern.Append("SA");
}
//trim trailing comma if it is there
if (rpPattern[rpPattern.Length - 1] == ',')
{
rpPattern.Remove(rpPattern.Length - 1, 1);
}
RecurringComponent recurringComponent = new RecurringComponent();
RecurrencePattern pattern = new RecurrencePattern(rpPattern.ToString());
DDay.iCal.Event evt = courseCalendar.Create <DDay.iCal.Event>();
//may cause issues
DateTime evtStart = DateTime.SpecifyKind(course.StartDate, DateTimeKind.Utc);
evtStart = evtStart.Add(cm.StartTime.TimeOfDay);
DateTime evtEnd = DateTime.SpecifyKind(course.StartDate, DateTimeKind.Utc);
evtEnd = evtEnd.Add(cm.EndTime.TimeOfDay);
//we need to test if right NOW is in DST.
//case: course starts during DST, and it's now after DST, result: after DST event is now wrong.
DateTime currentTime = new DateTime(DateTime.UtcNow.Year, DateTime.UtcNow.Month, DateTime.UtcNow.Day,
evtStart.Hour, evtStart.Minute, evtStart.Second, DateTimeKind.Utc);
bool isDaylight = TimeZoneInfo.Local.IsDaylightSavingTime(currentTime.UTCToCourse(ActiveCourseUser.AbstractCourseID));
if (isDaylight)
{
evt.Start = new iCalDateTime(evtStart.UTCToCourse(ActiveCourseUser.AbstractCourseID));
evt.End = new iCalDateTime(evtEnd.UTCToCourse(ActiveCourseUser.AbstractCourseID));
evt.LastModified = new iCalDateTime(DateTime.Now);
evt.Summary = cm.Name;
evt.Location = cm.Location;
evt.RecurrenceRules.Add(pattern);
}
else //no longer DST
{
bool matchingStartDay = false;
/*
* if there happens to be a "meeting times" in the database without a day of the week associated with
* the meeting, we need to skip the while and switch case, otherwise it's an infinite loop!
*/
bool meetingTimeWithoutDaysOfWeek = cm.Sunday || cm.Monday || cm.Tuesday || cm.Wednesday ||
cm.Thursday || cm.Friday || cm.Saturday ? false : true;
int count = 0; //infinite loop protection x2!
//WHILE matchingStartDay is false (default false) AND the meeting time has at least one day of the week
//AND if we've hit a count of 7, that means we've already checked each day of the week and will never find one!
//exit while if we fail either of these conditions!
while ((!matchingStartDay && !meetingTimeWithoutDaysOfWeek) && count < 7)
{
switch (currentTime.DayOfWeek) //find which day of the week for this meeting
{
case DayOfWeek.Monday:
if (cm.Monday)
{
matchingStartDay = true;
}
break;
case DayOfWeek.Tuesday:
if (cm.Tuesday)
{
matchingStartDay = true;
}
break;
case DayOfWeek.Wednesday:
if (cm.Wednesday)
{
matchingStartDay = true;
}
break;
case DayOfWeek.Thursday:
if (cm.Thursday)
{
matchingStartDay = true;
}
break;
case DayOfWeek.Friday:
if (cm.Friday)
{
matchingStartDay = true;
}
break;
case DayOfWeek.Saturday:
if (cm.Saturday)
{
matchingStartDay = true;
}
break;
case DayOfWeek.Sunday:
if (cm.Sunday)
{
matchingStartDay = true;
}
break;
default:
matchingStartDay = false;
break;
}
if (!matchingStartDay)
{
currentTime = new DateTime(currentTime.Year, currentTime.Month, currentTime.AddDays(1).Day,
evtStart.Hour, evtStart.Minute, evtStart.Second, DateTimeKind.Utc);
}
count++; //infinite loop protection x2! if we've reached 7 we've cycled all weekdays, so get us out of here!
}
//proceed only if there was a day of the week found for this course meeting time
if (!meetingTimeWithoutDaysOfWeek && matchingStartDay)
{
evt.Start = new iCalDateTime(currentTime.UTCToCourse(ActiveCourseUser.AbstractCourseID));
evt.End = new iCalDateTime(evtEnd.UTCToCourse(ActiveCourseUser.AbstractCourseID));
evt.LastModified = new iCalDateTime(DateTime.Now);
evt.Summary = cm.Name;
evt.Location = cm.Location;
evt.RecurrenceRules.Add(pattern);
}
}
}
//create the course breaks
foreach (CourseBreak cb in course.CourseBreaks)
{
DDay.iCal.Event evt = courseCalendar.Create <DDay.iCal.Event>();
DateTime evtStart = cb.StartDate.Date;
DateTime evtEnd = cb.EndDate.Date.AddDays(1);
evt.Summary = cb.Name;
evt.Start = new iCalDateTime(evtStart);
evt.End = new iCalDateTime(evtEnd);
evt.LastModified = new iCalDateTime(DateTime.Now);
}
}//end if
//add all the events to the calendar
foreach (var e in events)
{
DDay.iCal.Event evt = courseCalendar.Create <DDay.iCal.Event>();
evt.Start = new iCalDateTime(e.StartDate.UTCToCourse(ActiveCourseUser.AbstractCourseID));
if (e.EndDate == null)
{
evt.End = new iCalDateTime(e.StartDate.UTCToCourse(ActiveCourseUser.AbstractCourseID));
evt.End.AddMinutes(1);
}
else
{
evt.End = new iCalDateTime(((DateTime)e.EndDate).UTCToCourse(ActiveCourseUser.AbstractCourseID));
}
evt.Summary = e.Title;
if (e.Description != null)
{
evt.Description = e.Description;
}
}
// Create a serialization context and serializer factory.
// These will be used to build the serializer for our object.
ISerializationContext ctx = new SerializationContext();
ISerializerFactory factory = new DDay.iCal.Serialization.iCalendar.SerializerFactory();
// Get a serializer for our object
IStringSerializer serializer = factory.Build(courseCalendar.GetType(), ctx) as IStringSerializer;
string output = serializer.SerializeToString(courseCalendar);
var bytes = Encoding.UTF8.GetBytes(output);
SaveCourseCalendar(bytes, course.ID);
}