PNXMPPFramework/Extensions/XEP-0203/NSXMLElement+XEP_0203.m
2016-02-24 16:56:39 +01:00

85 lines
2.1 KiB
Objective-C

#import "NSXMLElement+XEP_0203.h"
#import "XMPPDateTimeProfiles.h"
#import "NSXMLElement+XMPP.h"
#if ! __has_feature(objc_arc)
#warning This file must be compiled with ARC. Use -fobjc-arc flag (or convert project to ARC).
#endif
@implementation NSXMLElement (XEP_0203)
- (BOOL)wasDelayed
{
NSXMLElement *delay;
delay = [self elementForName:@"delay" xmlns:@"urn:xmpp:delay"];
if (delay)
{
return YES;
}
delay = [self elementForName:@"x" xmlns:@"jabber:x:delay"];
if (delay)
{
return YES;
}
return NO;
}
- (NSDate *)delayedDeliveryDate
{
NSXMLElement *delay;
// From XEP-0203 (Delayed Delivery)
//
// <delay xmlns='urn:xmpp:delay'
// from='juliet@capulet.com/balcony'
// stamp='2002-09-10T23:41:07Z'/>
//
// The format [of the stamp attribute] MUST adhere to the dateTime format
// specified in XEP-0082 and MUST be expressed in UTC.
delay = [self elementForName:@"delay" xmlns:@"urn:xmpp:delay"];
if (delay)
{
NSString *stampValue = [delay attributeStringValueForName:@"stamp"];
// There are other considerations concerning XEP-0082.
// For example, it may optionally contain milliseconds.
// And it may possibly express UTC as "+00:00" instead of "Z".
//
// Thankfully there is already an implementation that takes into account all these possibilities.
return [XMPPDateTimeProfiles parseDateTime:stampValue];
}
// From XEP-0091 (Legacy Delayed Delivery)
//
// <x xmlns='jabber:x:delay'
// from='capulet.com'
// stamp='20020910T23:08:25'>
delay = [self elementForName:@"x" xmlns:@"jabber:x:delay"];
if (delay)
{
NSDate *stamp;
NSString *stampValue = [delay attributeStringValueForName:@"stamp"];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setFormatterBehavior:NSDateFormatterBehavior10_4];
[dateFormatter setLocale:[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"]];
[dateFormatter setDateFormat:@"yyyyMMdd'T'HH:mm:ss"];
[dateFormatter setTimeZone:[NSTimeZone timeZoneWithAbbreviation:@"GMT"]];
stamp = [dateFormatter dateFromString:stampValue];
return stamp;
}
return nil;
}
@end