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SOGoMailObject+ActiveSync.m
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SOGoMailObject+ActiveSync.m
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/*
Copyright (c) 2014, Inverse inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the Inverse inc. nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "SOGoMailObject+ActiveSync.h"
#import <Foundation/NSArray.h>
#import <Foundation/NSCalendarDate.h>
#import <Foundation/NSDictionary.h>
#import <Foundation/NSException.h>
#import <Foundation/NSString.h>
#import <Foundation/NSCharacterSet.h>
#import <NGCards/iCalCalendar.h>
#import <NGCards/iCalDateTime.h>
#import <NGCards/iCalEvent.h>
#import <NGCards/iCalPerson.h>
#import <NGCards/iCalTimeZone.h>
#import <NGExtensions/NGBase64Coding.h>
#import <NGExtensions/NGQuotedPrintableCoding.h>
#import <NGExtensions/NSString+misc.h>
#import <NGExtensions/NSString+Encoding.h>
#import <NGImap4/NGImap4Envelope.h>
#import <NGImap4/NGImap4EnvelopeAddress.h>
#import <NGImap4/NSString+Imap4.h>
#import <NGObjWeb/WOContext+SoObjects.h>
#import <NGObjWeb/WOApplication.h>
#import <NGMime/NGMimeBodyPart.h>
#import <NGMime/NGMimeFileData.h>
#import <NGMime/NGMimeMultipartBody.h>
#import <NGMime/NGMimeType.h>
#import <NGMail/NGMimeMessageParser.h>
#import <NGMail/NGMimeMessage.h>
#import <NGMail/NGMimeMessageGenerator.h>
#import <Mailer/SOGoMailLabel.h>
#import <SOGo/SOGoUserDefaults.h>
#include "iCalTimeZone+ActiveSync.h"
#include "NSData+ActiveSync.h"
#include "NSDate+ActiveSync.h"
#include "NSString+ActiveSync.h"
#include <Appointments/iCalEntityObject+SOGo.h>
#include <Appointments/iCalPerson+SOGo.h>
#include <Mailer/NSString+Mail.h>
#include <Mailer/SOGoMailBodyPart.h>
#include <SOGo/SOGoUser.h>
#include <SOGo/NSString+Utilities.h>
#import <Appointments/SOGoAptMailNotification.h>
unsigned char strToChar(char a, char b) {
char encoder[3] = {'\0','\0','\0'};
encoder[0] = a;
encoder[1] = b;
return (char) strtol(encoder,NULL,16);
}
@interface NSString (NSStringExtensions)
- (NSData *) decodeFromHexidecimal;
@end
@implementation NSString (NSStringExtensions)
- (NSData *) decodeFromHexidecimal;
{
const char * bytes = [self cStringUsingEncoding: NSUTF8StringEncoding];
NSUInteger length = strlen(bytes);
unsigned char * r = (unsigned char *) malloc(length / 2 + 1);
unsigned char * index = r;
while ((*bytes) && (*(bytes +1))) {
*index = strToChar(*bytes, *(bytes +1));
index++;
bytes+=2;
}
*index = '\0';
NSData * result = [NSData dataWithBytes: r length: length / 2];
free(r);
return result;
}
@end
typedef struct {
uint32_t dwLowDateTime;
uint32_t dwHighDateTime;
} FILETIME;
struct GlobalObjectId {
uint8_t ByteArrayID[16];
uint8_t YH;
uint8_t YL;
uint8_t Month;
uint8_t D;
FILETIME CreationTime;
uint8_t X[8];
uint32_t Size;
uint8_t Data[0];
};
@implementation SOGoMailObject (ActiveSync)
//
//
//
- (void) _setInstanceDate: (struct GlobalObjectId *) newGlobalId
fromDate: (NSCalendarDate *) instanceDate
{
uint16_t year;
if (instanceDate)
{
//[instanceDate setTimeZone: timeZone];
year = [instanceDate yearOfCommonEra];
newGlobalId->YH = year >> 8;
newGlobalId->YL = year & 0xff;
newGlobalId->Month = [instanceDate monthOfYear];
newGlobalId->D = [instanceDate dayOfMonth];
}
}
//
// The GlobalObjId is documented here: http://msdn.microsoft.com/en-us/library/ee160198(v=EXCHG.80).aspx
//
- (NSData *) _computeGlobalObjectIdFromEvent: (iCalEvent *) event
{
NSData *binPrefix, *globalObjectId, *uidAsASCII;
NSString *prefix, *uid;
struct GlobalObjectId *newGlobalId;
const char *bytes;
uid = [event uid];
uidAsASCII = [uid dataUsingEncoding: NSASCIIStringEncoding];
newGlobalId = (struct GlobalObjectId*)calloc(sizeof(uint8_t), sizeof(struct GlobalObjectId) + 0x0c + [uidAsASCII length]);
prefix = @"040000008200e00074c5b7101a82e008";
// dataPrefix is "vCal-Uid %x01 %x00 %x00 %x00"
uint8_t dataPrefix[] = { 0x76, 0x43, 0x61, 0x6c, 0x2d, 0x55, 0x69, 0x64, 0x01, 0x00, 0x00, 0x00 };
binPrefix = [prefix convertHexStringToBytes];
[binPrefix getBytes: &newGlobalId->ByteArrayID];
[self _setInstanceDate: newGlobalId
fromDate: [event recurrenceId]];
bytes = [uidAsASCII bytes];
// 0x0c is the size of our dataPrefix
newGlobalId->Size = 0x0c + [uidAsASCII length];
memcpy(newGlobalId->Data, dataPrefix, 0x0c);
memcpy(newGlobalId->Data + 0x0c, bytes, newGlobalId->Size - 0x0c);
globalObjectId = [[NSData alloc] initWithBytes: newGlobalId length: 40 + newGlobalId->Size*sizeof(uint8_t)];
free(newGlobalId);
return [globalObjectId autorelease];
}
//
// For debugging purposes...
//
- (NSString *) _uidFromGlobalObjectId: (NSData *) objectId
{
NSString *uid;
struct GlobalObjectId *newGlobalId;
NSUInteger length;
uint8_t *bytes;
length = [objectId length];
uid = nil;
bytes = malloc(length*sizeof(uint8_t));
[objectId getBytes: bytes length: length];
newGlobalId = (struct GlobalObjectId *)bytes;
// We must take the offset (dataPrefix) into account
uid = [[NSString alloc] initWithBytes: newGlobalId->Data+12 length: newGlobalId->Size-12 encoding: NSASCIIStringEncoding];
free(bytes);
return AUTORELEASE(uid);
}
//
//
//
- (NSString *) _emailAddressesFrom: (NSArray *) enveloppeAddresses
{
NGImap4EnvelopeAddress *address;
NSString *email, *rc, *name;
NSMutableArray *addresses;
int i, max;
rc = nil;
max = [enveloppeAddresses count];
if (max > 0)
{
addresses = [NSMutableArray array];
for (i = 0; i < max; i++)
{
address = [enveloppeAddresses objectAtIndex: i];
name = [address personalName];
email = [NSString stringWithFormat: @"\"%@\" <%@>", (name ? name : [address baseEMail]), [address baseEMail]];
if (email)
[addresses addObject: email];
}
rc = [addresses componentsJoinedByString: @", "];
}
return rc;
}
//
//
//
- (NSData *) _preferredBodyDataInMultipartUsingType: (int) theType
nativeTypeFound: (int *) theNativeTypeFound
{
NSString *encoding, *key, *plainKey, *htmlKey, *type, *subtype;
NSDictionary *textParts, *part;
NSEnumerator *e;
NSData *d;
BOOL ignore;
textParts = [self fetchPlainTextParts];
e = [textParts keyEnumerator];
plainKey = nil;
htmlKey = nil;
d = nil;
while ((key = [e nextObject]))
{
// Walk the hierarchy up and check whether parents are of type mulipart - i.e. ignore message/rfc822
if ([key countOccurrencesOfString: @"."] > 0)
{
NSMutableArray *a;
a = [[[key componentsSeparatedByString: @"."] mutableCopy] autorelease];
ignore = NO;
while ([a count] > 0)
{
[a removeLastObject];
part = [self lookupInfoForBodyPart: [a componentsJoinedByString: @"."]];
if (![[part valueForKey: @"type"] isEqualToString: @"multipart"])
ignore = YES;
}
if (ignore)
continue;
}
part = [self lookupInfoForBodyPart: key];
type = [part valueForKey: @"type"];
subtype = [part valueForKey: @"subtype"];
// Don't select an attachment as body
if ([[[part valueForKey: @"disposition"] valueForKey: @"type"] isEqualToString: @"attachment"])
continue;
if ([type isEqualToString: @"text"] && [subtype isEqualToString: @"html"])
htmlKey = key;
else if ([type isEqualToString: @"text"] && [subtype isEqualToString: @"plain"])
plainKey = key;
}
key = nil;
*theNativeTypeFound = 1;
if (theType == 2 && htmlKey)
{
key = htmlKey;
*theNativeTypeFound = 2;
}
else if (theType == 1 && plainKey)
key = plainKey;
else if (theType == 2 && plainKey)
key = plainKey;
else if (theType == 1 && htmlKey)
{
key = htmlKey;
*theNativeTypeFound = 2;
}
if (key)
{
NSString *s, *charset;
d = [[self fetchPlainTextParts] objectForKey: key];
encoding = [[self lookupInfoForBodyPart: key] objectForKey: @"encoding"];
if ([encoding caseInsensitiveCompare: @"base64"] == NSOrderedSame)
d = [d dataByDecodingBase64];
else if ([encoding caseInsensitiveCompare: @"quoted-printable"] == NSOrderedSame)
d = [d dataByDecodingQuotedPrintableTransferEncoding];
charset = [[[self lookupInfoForBodyPart: key] objectForKey: @"parameterList"] objectForKey: @"charset"];
if (![charset length])
charset = @"utf-8";
s = [NSString stringWithData: d usingEncodingNamed: charset];
// We fallback to ISO-8859-1 string encoding
if (!s)
s = [[[NSString alloc] initWithData: d encoding: NSISOLatin1StringEncoding] autorelease];
if (theType == 1 && *theNativeTypeFound == 2)
s = [s htmlToText];
d = [s dataUsingEncoding: NSUTF8StringEncoding];
}
return d;
}
//
//
//
- (void) _sanitizedMIMEPart: (id) thePart
performed: (BOOL *) b
{
if ([thePart isKindOfClass: [NGMimeMultipartBody class]])
{
NGMimeBodyPart *part;
NSArray *parts;
int i;
parts = [thePart parts];
for (i = 0; i < [parts count]; i++)
{
part = [parts objectAtIndex: i];
[self _sanitizedMIMEPart: part
performed: b];
}
}
else if ([thePart isKindOfClass: [NGMimeBodyPart class]] || [thePart isKindOfClass: [NGMimeMessage class]])
{
NGMimeFileData *fdata;
id body;
body = [thePart body];
if ([body isKindOfClass: [NGMimeMultipartBody class]])
{
[self _sanitizedMIMEPart: body
performed: b];
}
else if (([body isKindOfClass: [NSData class]] || [body isKindOfClass: [NSString class]]) &&
[[[thePart contentType] type] isEqualToString: @"text"] &&
([[[thePart contentType] subType] isEqualToString: @"plain"] || [[[thePart contentType] subType] isEqualToString: @"html"]))
{
// We make sure everything is encoded in UTF-8.
NGMimeType *mimeType;
NSString *s;
if ([body isKindOfClass: [NSData class]])
{
NSString *charset;
charset = [[thePart contentType] valueOfParameter: @"charset"];
if (![charset length])
charset = @"utf-8";
s = [NSString stringWithData: body usingEncodingNamed: charset];
// We fallback to ISO-8859-1 string encoding. We avoid #3103.
if (!s)
s = [[[NSString alloc] initWithData: body encoding: NSISOLatin1StringEncoding] autorelease];
}
else
{
// Handle situations when SOPE stupidly returns us a NSString
// This can happen for Content-Type: text/plain, Content-Transfer-Encoding: 8bit
s = body;
}
if (s)
{
body = [s dataUsingEncoding: NSUTF8StringEncoding];
}
mimeType = [NGMimeType mimeType: [[thePart contentType] type]
subType: [[thePart contentType] subType]
parameters: [NSDictionary dictionaryWithObject: @"utf-8" forKey: @"charset"]];
[thePart setHeader: mimeType forKey: @"content-type"];
fdata = [[NGMimeFileData alloc] initWithBytes: [body bytes]
length: [body length]];
[thePart setBody: fdata];
RELEASE(fdata);
*b = YES;
}
}
}
//
//
//
- (NSData *) _sanitizedMIMEMessage
{
NGMimeMessageParser *parser;
NGMimeMessage *message;
NSData *d;
BOOL b;
d = [self content];
parser = [[NGMimeMessageParser alloc] init];
AUTORELEASE(parser);
message = [parser parsePartFromData: d];
b = NO;
if (message)
{
[self _sanitizedMIMEPart: message performed: &b];
if (b)
{
NGMimeMessageGenerator *generator;
generator = [[NGMimeMessageGenerator alloc] init];
AUTORELEASE(generator);
d = [generator generateMimeFromPart: message];
}
}
return d;
}
//
//
//
- (BOOL) _sanitinizeNeeded: (NSArray *) theParts
{
NSString *encoding, *charset;
int i;
for (i = 0; i < [theParts count]; i++)
{
encoding = [[theParts objectAtIndex: i ] objectForKey: @"encoding"];
charset = [[[theParts objectAtIndex: i ] objectForKey: @"parameterList"] objectForKey: @"charset"];
if (encoding && ([encoding caseInsensitiveCompare: @"7bit"] == NSOrderedSame || [encoding caseInsensitiveCompare: @"8bit"] == NSOrderedSame) &&
charset && ![charset caseInsensitiveCompare: @"utf-8"] == NSOrderedSame
&& ![charset caseInsensitiveCompare: @"us-ascii"] == NSOrderedSame)
{
return YES;
}
if ([self _sanitinizeNeeded: [[theParts objectAtIndex: i ] objectForKey: @"parts"]])
return YES;
}
return NO;
}
- (BOOL) _isSigned: (NSDictionary *) thePart
{
NSMutableDictionary *currentPart;
NSArray *subparts;
NSString *type, *subtype;
NSUInteger i;
type = [[thePart objectForKey: @"type"] lowercaseString];
subtype = [[thePart objectForKey: @"subtype"] lowercaseString];
if ([type isEqualToString: @"multipart"])
{
if ([subtype isEqualToString: @"signed"])
return YES;
subparts = [thePart objectForKey: @"parts"];
for (i = 0; i < [subparts count]; i++)
{
currentPart = [subparts objectAtIndex: i];
if ([self _isSigned: currentPart])
return YES;
}
}
return NO;
}
- (BOOL) _isSmimeEncrypted: (NSDictionary *) thePart
{
NSMutableDictionary *currentPart;
NSArray *subparts;
NSString *type, *subtype;
NSUInteger i;
type = [[thePart objectForKey: @"type"] lowercaseString];
subtype = [[thePart objectForKey: @"subtype"] lowercaseString];
if ([type isEqualToString: @"multipart"])
{
subparts = [thePart objectForKey: @"parts"];
for (i = 0; i < [subparts count]; i++)
{
currentPart = [subparts objectAtIndex: i];
if ([self _isSmimeEncrypted: currentPart])
return YES;
}
}
else if ([type isEqualToString: @"application"] && ([subtype isEqualToString: @"pkcs7-mime"] ||
[subtype isEqualToString: @"x-pkcs7-mime"]))
return YES;
return NO;
}
- (BOOL) _isPGP: (NSDictionary *) thePart
{
NSMutableDictionary *currentPart;
NSArray *subparts;
NSString *type, *subtype, *protocol;
NSUInteger i;
type = [[thePart objectForKey: @"type"] lowercaseString];
subtype = [[thePart objectForKey: @"subtype"] lowercaseString];
protocol = [[[thePart objectForKey: @"parameterList"] objectForKey: @"protocol"] lowercaseString];
if ([type isEqualToString: @"multipart"])
{
if (([protocol isEqualToString: @"application/pgp-signature"] || [protocol isEqualToString: @"application/pgp-encrypted"]))
return YES;
subparts = [thePart objectForKey: @"parts"];
for (i = 0; i < [subparts count]; i++)
{
currentPart = [subparts objectAtIndex: i];
if ([self _isPGP: currentPart])
return YES;
}
}
else if ([type isEqualToString: @"application"] && [subtype isEqualToString: @"pgp-encrypted"])
return YES;
return NO;
}
//
//
//
- (NSData *) _preferredBodyDataUsingType: (int) theType
mimeSupport: (int) theMimeSupport
nativeType: (int *) theNativeType
{
NSString *type, *subtype, *encoding;
NSData *d;
BOOL isSMIME, sanitinizeNeeded;
type = [[[self bodyStructure] valueForKey: @"type"] lowercaseString];
subtype = [[[self bodyStructure] valueForKey: @"subtype"] lowercaseString];
isSMIME = NO;
d = nil;
// We determine the native type
if ([type isEqualToString: @"text"] && [subtype isEqualToString: @"plain"])
*theNativeType = 1;
else if ([type isEqualToString: @"text"] && [subtype isEqualToString: @"html"])
*theNativeType = 2;
else if ([type isEqualToString: @"multipart"])
*theNativeType = 4;
if (([self _isSigned: [self bodyStructure]] ||
[self _isSmimeEncrypted: [self bodyStructure]] ||
[self _isPGP: [self bodyStructure]]) && theMimeSupport > 0)
{
*theNativeType = 4;
isSMIME = YES;
}
// We get the right part based on the preference
if ((theType == 1 || theType == 2) && !isSMIME)
{
if ([type isEqualToString: @"text"] && ![subtype isEqualToString: @"calendar"])
{
NSString *s, *charset;
charset = [[[self lookupInfoForBodyPart: @""] objectForKey: @"parameterList"] objectForKey: @"charset"];
if (![charset length])
charset = @"utf-8";
d = [[self fetchPlainTextParts] objectForKey: @""];
// We check if we have base64 encoded parts. If so, we just
// un-encode them before using them
encoding = [[self lookupInfoForBodyPart: @""] objectForKey: @"encoding"];
if ([encoding caseInsensitiveCompare: @"base64"] == NSOrderedSame)
d = [d dataByDecodingBase64];
else if ([encoding caseInsensitiveCompare: @"quoted-printable"] == NSOrderedSame)
d = [d dataByDecodingQuotedPrintableTransferEncoding];
s = [NSString stringWithData: d usingEncodingNamed: charset];
// We fallback to ISO-8859-1 string encoding. We avoid #3103.
if (!s)
s = [[[NSString alloc] initWithData: d encoding: NSISOLatin1StringEncoding] autorelease];
// Check if we must convert html->plain
if (theType == 1 && [subtype isEqualToString: @"html"])
{
s = [s htmlToText];
}
d = [s dataUsingEncoding: NSUTF8StringEncoding];
}
else if ([type isEqualToString: @"multipart"])
{
d = [self _preferredBodyDataInMultipartUsingType: theType nativeTypeFound: theNativeType];
}
}
else if (theType == 4 || isSMIME)
{
// We sanitize the content if the content-transfer-encoding is 8bit and charset is not utf-8 or us-ascii.
sanitinizeNeeded = [self _sanitinizeNeeded: [NSArray arrayWithObject: [self bodyStructure]]];
if (sanitinizeNeeded && !isSMIME)
d = [self _sanitizedMIMEMessage];
else
d = [self content];
}
return d;
}
- (NSString *) _getNormalizedSubject
{
NSString *subject;
NSUInteger colIdx;
NSString *stringValue;
subject = [[self subject] decodedHeader];
colIdx = [subject rangeOfString: @":" options:NSBackwardsSearch].location;
if (colIdx != NSNotFound && colIdx + 1 < [subject length])
stringValue = [[subject substringFromIndex: colIdx + 1] stringByTrimmingLeadSpaces];
else
stringValue = subject;
if (!stringValue)
stringValue = @"";
return stringValue;
}
- (NSString *) _truncateContent: (NSString *) theContent
limit: (int) theLimit
truncated: (int *) wasTruncated
{
if ([theContent length] > theLimit)
{
int i, len;
theContent = [theContent substringToIndex: theLimit];
*wasTruncated = 1;
// We search for the first "space" character starting from the
// end and we truncate the string once more. We do this to avoid
// truncating the content in the middle of a XML entity
len = theLimit-1;
for (i = len; i >= 0; i--)
{
if (isspace([theContent characterAtIndex: i]))
break;
}
return [theContent substringToIndex: i];
}
*wasTruncated = 0;
return theContent;
}
//
//
//
- (iCalCalendar *) calendarFromIMIPMessage
{
NSDictionary *part;
NSString *type, *subtype;
NSArray *parts;
int i;
type = [[[self bodyStructure] valueForKey: @"type"] lowercaseString];
subtype = [[[self bodyStructure] valueForKey: @"subtype"] lowercaseString];
// process mail of type text/calendar
if ([type isEqualToString: @"text"] && [subtype isEqualToString: @"calendar"])
{
iCalCalendar *calendar;
NSString *encoding;
NSData *calendarData;
encoding = [[[self bodyStructure] valueForKey: @"encoding"] lowercaseString];
calendarData = [[self fetchPlainTextParts] objectForKey: @""];
if ([encoding caseInsensitiveCompare: @"base64"] == NSOrderedSame)
calendarData = [calendarData dataByDecodingBase64];
else if ([encoding caseInsensitiveCompare: @"quoted-printable"] == NSOrderedSame)
calendarData = [calendarData dataByDecodingQuotedPrintableTransferEncoding];
NS_DURING
calendar = [iCalCalendar parseSingleFromSource: calendarData];
NS_HANDLER
calendar = nil;
NS_ENDHANDLER
return calendar;
}
// We check if we have at least 2 parts and if one of them is a text/calendar
parts = [[self bodyStructure] objectForKey: @"parts"];
if ([parts count] > 1)
{
for (i = 0; i < [parts count]; i++)
{
part = [parts objectAtIndex: i];
if ([[part objectForKey: @"type"] isEqualToString: @"text"] &&
[[part objectForKey: @"subtype"] isEqualToString: @"calendar"])
{
id bodyPart;
bodyPart = [self lookupImap4BodyPartKey: [NSString stringWithFormat: @"%d", i+1]
inContext: self->context];
if (bodyPart)
{
iCalCalendar *calendar;
NSData *calendarData;
calendarData = [bodyPart fetchBLOBWithPeek: YES];
calendar = nil;
NS_DURING
calendar = [iCalCalendar parseSingleFromSource: calendarData];
NS_HANDLER
calendar = nil;
NS_ENDHANDLER
return calendar;
}
}
}
}
return nil;
}
//
//
//
- (NSString *) activeSyncRepresentationInContext: (WOContext *) _context
{
NSData *d, *globalObjId;
NSArray *attachmentKeys;
iCalCalendar *calendar;
NSString *p;
NSMutableString *s;
id value;
int preferredBodyType, mimeSupport, mimeTruncation, nativeBodyType;
uint32_t v;
preferredBodyType = [[context objectForKey: @"BodyPreferenceType"] intValue];
mimeSupport = [[context objectForKey: @"MIMESupport"] intValue];
mimeTruncation = [[context objectForKey: @"MIMETruncation"] intValue];
s = [NSMutableString string];
// To - "The value of this element contains one or more e-mail addresses.
// If there are multiple e-mail addresses, they are separated by commas."
value = [self _emailAddressesFrom: [[self envelope] to]];
if (value)
[s appendFormat: @"<To xmlns=\"Email:\">%@</To>", [value activeSyncRepresentationInContext: context]];
// From
value = [self _emailAddressesFrom: [[self envelope] from]];
if (value)
[s appendFormat: @"<From xmlns=\"Email:\">%@</From>", [value activeSyncRepresentationInContext: context]];
// Subject
value = [self decodedSubject];
if (value)
{
[s appendFormat: @"<Subject xmlns=\"Email:\">%@</Subject>", [value activeSyncRepresentationInContext: context]];
[s appendFormat: @"<ThreadTopic xmlns=\"Email:\">%@</ThreadTopic>", [[self _getNormalizedSubject] activeSyncRepresentationInContext: context]];
}
// DateReceived
value = [self date];
if (value)
[s appendFormat: @"<DateReceived xmlns=\"Email:\">%@</DateReceived>", [value activeSyncRepresentationInContext: context]];
// DisplayTo
[s appendFormat: @"<DisplayTo xmlns=\"Email:\">%@</DisplayTo>", [[context activeUser] login]];
// Cc - same syntax as the To field
value = [self _emailAddressesFrom: [[self envelope] cc]];
if (value)
[s appendFormat: @"<Cc xmlns=\"Email:\">%@</Cc>", [value activeSyncRepresentationInContext: context]];
// Importance
v = 0x1;
value = [[self mailHeaders] objectForKey: @"x-priority"];
if ([value isKindOfClass: [NSArray class]])
p = [value lastObject];
else
p = value;
if (p)
{
if ([p hasPrefix: @"1"]) v = 0x2;
else if ([p hasPrefix: @"2"]) v = 0x2;
else if ([p hasPrefix: @"4"]) v = 0x0;
else if ([p hasPrefix: @"5"]) v = 0x0;
}
else
{
value = [[self mailHeaders] objectForKey: @"importance"];
if ([value isKindOfClass: [NSArray class]])
p = [value lastObject];
else
p = value;
if ([p hasPrefix: @"High"]) v = 0x2;
else if ([p hasPrefix: @"Low"]) v = 0x0;
}
[s appendFormat: @"<Importance xmlns=\"Email:\">%d</Importance>", v];
// Read
[s appendFormat: @"<Read xmlns=\"Email:\">%d</Read>", ([self read] ? 1 : 0)];
// We handle MeetingRequest
calendar = [self calendarFromIMIPMessage];
if (calendar)
{
NSString *method, *className;
iCalPerson *attendee;
iCalTimeZone *tz;
iCalEvent *event;
iCalPersonPartStat partstat;
int v;
event = [[calendar events] lastObject];
method = [[event parent] method];
// If we are the organizer, let's pick the attendee based on the From address
if ([event userIsOrganizer: [context activeUser]])
attendee = [event findAttendeeWithEmail: [[[[self envelope] from] lastObject] baseEMail]];
else
attendee = [event findAttendeeWithEmail: [[[context activeUser] allEmails] objectAtIndex: 0]];
partstat = [attendee participationStatus];
// We generate the correct MessageClass
if ([method isEqualToString: @"REQUEST"])
className = @"IPM.Schedule.Meeting.Request";
else if ([method isEqualToString: @"REPLY"])
{
switch (partstat)
{
case iCalPersonPartStatAccepted:
className = @"IPM.Schedule.Meeting.Resp.Pos";
break;
case iCalPersonPartStatDeclined:
className = @"IPM.Schedule.Meeting.Resp.Neg";
break;
case iCalPersonPartStatTentative:
case iCalPersonPartStatNeedsAction:
className = @"IPM.Schedule.Meeting.Resp.Tent";
break;
default:
className = @"IPM.Appointment";
NSLog(@"unhandled part stat");
}
}
else if ([method isEqualToString: @"COUNTER"])
className = @"IPM.Schedule.Meeting.Resp.Tent";
else if ([method isEqualToString: @"CANCEL"])
className = @"IPM.Schedule.Meeting.Cancelled";
else
className = @"IPM.Appointment";
[s appendFormat: @"<MessageClass xmlns=\"Email:\">%@</MessageClass>", className];
[s appendString: @"<MeetingRequest xmlns=\"Email:\">"];
[s appendFormat: @"<AllDayEvent xmlns=\"Email:\">%d</AllDayEvent>", ([event isAllDay] ? 1 : 0)];
// StartTime -- https://msdn.microsoft.com/en-us/library/ee203365%28v=exchg.80%29.aspx
if ([event startDate])
[s appendFormat: @"<StartTime xmlns=\"Email:\">%@</StartTime>", [[event startDate] activeSyncRepresentationInContext: context]];
if ([event timeStampAsDate])
[s appendFormat: @"<DTStamp xmlns=\"Email:\">%@</DTStamp>", [[event timeStampAsDate] activeSyncRepresentationInContext: context]];
else if ([event created])
[s appendFormat: @"<DTStamp xmlns=\"Email:\">%@</DTStamp>", [[event created] activeSyncRepresentationInContext: context]];
// EndTime -- https://msdn.microsoft.com/en-us/library/ee158628(v=exchg.80).aspx
if ([event endDate])
[s appendFormat: @"<EndTime xmlns=\"Email:\">%@</EndTime>", [[event endDate] activeSyncRepresentationInContext: context]];
// FIXME: Single appointment - others are not supported right now
[s appendFormat: @"<InstanceType xmlns=\"Email:\">%d</InstanceType>", 0];
// Location
if ([[event location] length])
[s appendFormat: @"<Location xmlns=\"Email:\">%@</Location>", [[event location] activeSyncRepresentationInContext: context]];
[s appendFormat: @"<Organizer xmlns=\"Email:\">%@</Organizer>", [[[event organizer] mailAddress] activeSyncRepresentationInContext: context]];
// This will trigger the SendMail command. We set it to no for email invitations as
// SOGo will send emails when MeetingResponse is called.
[s appendFormat: @"<ResponseRequested xmlns=\"Email:\">%d</ResponseRequested>", 0];
// Sensitivity
if ([[event accessClass] isEqualToString: @"PRIVATE"])
v = 2;
if ([[event accessClass] isEqualToString: @"CONFIDENTIAL"])
v = 3;
else
v = 0;
[s appendFormat: @"<Sensitivity xmlns=\"Email:\">%d</Sensitivity>", v];
[s appendFormat: @"<BusyStatus xmlns=\"Email:\">%d</BusyStatus>", 2];
// Timezone
tz = [(iCalDateTime *)[event firstChildWithTag: @"dtstart"] timeZone];
if (!tz)
tz = [iCalTimeZone timeZoneForName: @"Europe/London"];
[s appendFormat: @"<TimeZone xmlns=\"Email:\">%@</TimeZone>", [tz activeSyncRepresentationInContext: context]];
// We disallow new time proposals
[s appendFormat: @"<DisallowNewTimeProposal xmlns=\"Email:\">%d</DisallowNewTimeProposal>", 1];
// From http://blogs.msdn.com/b/exchangedev/archive/2011/07/22/working-with-meeting-requests-in-exchange-activesync.aspx:
//
// "Clients that need to determine whether the GlobalObjId element for a meeting request corresponds to an existing Calendar
// object in the Calendar folder have to convert the GlobalObjId element value to a UID element value to make the comparison."