2 Copyright (C) 2004-2005 SKYRIX Software AG
4 This file is part of OpenGroupware.org.
6 OGo is free software; you can redistribute it and/or modify it under
7 the terms of the GNU Lesser General Public License as published by the
8 Free Software Foundation; either version 2, or (at your option) any
11 OGo is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
14 License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with OGo; see the file COPYING. If not, write to the
18 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
22 #include "SOGoMailObject.h"
23 #include "SOGoMailFolder.h"
24 #include "SOGoMailAccount.h"
25 #include "SOGoMailManager.h"
26 #include "SOGoMailBodyPart.h"
27 #include <NGImap4/NGImap4Envelope.h>
28 #include <NGImap4/NGImap4EnvelopeAddress.h>
29 #include <NGMail/NGMimeMessageParser.h>
32 @implementation SOGoMailObject
34 static NSArray *coreInfoKeys = nil;
35 static NSString *mailETag = nil;
36 static BOOL heavyDebug = NO;
37 static BOOL fetchHeader = YES;
38 static BOOL debugOn = NO;
39 static BOOL debugBodyStructure = NO;
40 static BOOL debugSoParts = NO;
43 return [super version] + 0 /* v1 */;
47 NSUserDefaults *ud = [NSUserDefaults standardUserDefaults];
49 NSAssert2([super version] == 1,
50 @"invalid superclass (%@) version %i !",
51 NSStringFromClass([self superclass]), [super version]);
53 if ((fetchHeader = ([ud boolForKey:@"SOGoDoNotFetchMailHeader"] ? NO : YES)))
54 NSLog(@"Note: fetching full mail header.");
56 NSLog(@"Note: not fetching full mail header: 'SOGoDoNotFetchMailHeader'");
58 /* Note: see SOGoMailManager.m for allowed IMAP4 keys */
59 /* Note: "BODY" actually returns the structure! */
61 coreInfoKeys = [[NSArray alloc] initWithObjects:
62 @"FLAGS", @"ENVELOPE", @"BODY",
65 // not yet supported: @"INTERNALDATE",
69 coreInfoKeys = [[NSArray alloc] initWithObjects:
70 @"FLAGS", @"ENVELOPE", @"BODY",
72 // not yet supported: @"INTERNALDATE",
76 if (![[ud objectForKey:@"SOGoMailDisableETag"] boolValue]) {
77 mailETag = [[NSString alloc] initWithFormat:@"\"imap4url_%d_%d_%03d\"",
78 UIX_MAILER_MAJOR_VERSION,
79 UIX_MAILER_MINOR_VERSION,
80 UIX_MAILER_SUBMINOR_VERSION];
81 NSLog(@"Note(SOGoMailObject): using constant etag for mail parts: '%@'",
85 NSLog(@"Note(SOGoMailObject): etag caching disabled!");
89 [self->headers release];
90 [self->headerPart release];
91 [self->coreInfos release];
97 - (NSString *)relativeImap4Name {
98 return [[self nameInContainer] stringByDeletingPathExtension];
103 - (SOGoMailObject *)mailObject {
109 - (NSString *)keyExtensionForPart:(id)_partInfo {
112 if (_partInfo == nil)
115 mt = [_partInfo valueForKey:@"type"];
116 st = [[_partInfo valueForKey:@"subtype"] lowercaseString];
117 if ([mt isEqualToString:@"text"]) {
118 if ([st isEqualToString:@"plain"]) return @".txt";
119 if ([st isEqualToString:@"html"]) return @".html";
120 if ([st isEqualToString:@"calendar"]) return @".ics";
121 if ([st isEqualToString:@"x-vcard"]) return @".vcf";
123 else if ([mt isEqualToString:@"image"])
124 return [@"." stringByAppendingString:st];
125 else if ([mt isEqualToString:@"application"]) {
126 if ([st isEqualToString:@"pgp-signature"])
133 - (NSArray *)relationshipKeysWithParts:(BOOL)_withParts {
134 /* should return non-multipart children */
139 parts = [[self bodyStructure] valueForKey:@"parts"];
140 if (![parts isNotNull])
142 if ((count = [parts count]) == 0)
145 for (i = 0, ma = nil; i < count; i++) {
150 part = [parts objectAtIndex:i];
151 hasParts = [part valueForKey:@"parts"] != nil ? YES:NO;
152 if ((hasParts && !_withParts) || (_withParts && !hasParts))
156 ma = [NSMutableArray arrayWithCapacity:count - i];
158 ext = [self keyExtensionForPart:part];
159 key = [[NSString alloc] initWithFormat:@"%d%@", i + 1, ext?ext:@""];
166 - (NSArray *)toOneRelationshipKeys {
167 return [self relationshipKeysWithParts:NO];
169 - (NSArray *)toManyRelationshipKeys {
170 return [self relationshipKeysWithParts:YES];
175 - (id)fetchParts:(NSArray *)_parts {
176 // TODO: explain what it does
178 Called by -fetchPlainTextParts:
180 return [[self imap4Connection] fetchURL:[self imap4URL] parts:_parts];
185 - (BOOL)doesMailExist {
186 static NSArray *existsKey = nil;
189 if (self->coreInfos != nil) /* if we have coreinfos, we can use them */
190 return [self->coreInfos isNotNull];
192 /* otherwise fetch something really simple */
194 if (existsKey == nil) /* we use size, other suggestions? */
195 existsKey = [[NSArray alloc] initWithObjects:@"RFC822.SIZE", nil];
197 msgs = [self fetchParts:existsKey]; // returns dict
198 msgs = [msgs valueForKey:@"fetch"];
199 return [msgs count] > 0 ? YES : NO;
202 - (id)fetchCoreInfos {
205 if (self->coreInfos != nil)
206 return [self->coreInfos isNotNull] ? self->coreInfos : nil;
208 #if 0 // TODO: old code, why was it using clientObject??
209 msgs = [[self clientObject] fetchParts:coreInfoKeys]; // returns dict
211 msgs = [self fetchParts:coreInfoKeys]; // returns dict
213 if (heavyDebug) [self logWithFormat:@"M: %@", msgs];
214 msgs = [msgs valueForKey:@"fetch"];
215 if ([msgs count] == 0)
218 self->coreInfos = [[msgs objectAtIndex:0] retain];
219 return self->coreInfos;
222 - (id)bodyStructure {
225 body = [[self fetchCoreInfos] valueForKey:@"body"];
226 if (debugBodyStructure)
227 [self logWithFormat:@"BODY: %@", body];
231 - (NGImap4Envelope *)envelope {
232 return [[self fetchCoreInfos] valueForKey:@"envelope"];
234 - (NSString *)subject {
235 return [[self envelope] subject];
237 - (NSCalendarDate *)date {
238 return [[self envelope] date];
240 - (NSArray *)fromEnvelopeAddresses {
241 return [[self envelope] from];
243 - (NSArray *)toEnvelopeAddresses {
244 return [[self envelope] to];
246 - (NSArray *)ccEnvelopeAddresses {
247 return [[self envelope] cc];
250 - (NSData *)mailHeaderData {
251 return [[self fetchCoreInfos] valueForKey:@"header"];
253 - (BOOL)hasMailHeaderInCoreInfos {
254 return [[self mailHeaderData] length] > 0 ? YES : NO;
257 - (id)mailHeaderPart {
258 NGMimeMessageParser *parser;
261 if (self->headerPart != nil)
262 return [self->headerPart isNotNull] ? self->headerPart : nil;
264 if ([(data = [self mailHeaderData]) length] == 0)
267 // TODO: do we need to set some delegate method which stops parsing the body?
268 parser = [[NGMimeMessageParser alloc] init];
269 self->headerPart = [[parser parsePartFromData:data] retain];
270 [parser release]; parser = nil;
272 if (self->headerPart == nil) {
273 self->headerPart = [[NSNull null] retain];
276 return self->headerPart;
278 - (NSDictionary *)mailHeaders {
279 if (self->headers == nil)
280 self->headers = [[[self mailHeaderPart] headers] copy];
281 return self->headers;
284 - (id)lookupInfoForBodyPart:(id)_path {
289 if (![_path isNotNull])
292 if ((info = [self bodyStructure]) == nil) {
293 [self errorWithFormat:@"got no body part structure!"];
297 /* ensure array argument */
299 if ([_path isKindOfClass:[NSString class]]) {
300 if ([_path length] == 0)
303 _path = [_path componentsSeparatedByString:@"."];
307 For each path component, eg 1,1,3
309 Remember that we need special processing for message/rfc822 which maps the
310 namespace of multiparts directly into the main namespace.
312 TODO(hh): no I don't remember, please explain in more detail!
314 pe = [_path objectEnumerator];
315 while ((p = [pe nextObject]) != nil && [info isNotNull]) {
320 [self debugWithFormat:@"check PATH: %@", p];
321 idx = [p intValue] - 1;
323 parts = [info valueForKey:@"parts"];
324 mt = [[info valueForKey:@"type"] lowercaseString];
325 if ([mt isEqualToString:@"message"]) {
326 /* we have special behaviour for message types */
329 if ((body = [info valueForKey:@"body"]) != nil) {
330 mt = [body valueForKey:@"type"];
331 if ([mt isEqualToString:@"multipart"])
332 parts = [body valueForKey:@"parts"];
334 parts = [NSArray arrayWithObject:body];
338 if (idx >= [parts count]) {
339 [self errorWithFormat:
340 @"body part index out of bounds(idx=%d vs count=%d): %@",
341 (idx + 1), [parts count], info];
344 info = [parts objectAtIndex:idx];
346 return [info isNotNull] ? info : nil;
351 - (NSData *)content {
353 id result, fullResult;
355 fullResult = [self fetchParts:[NSArray arrayWithObject:@"RFC822"]];
356 if (fullResult == nil)
359 if ([fullResult isKindOfClass:[NSException class]])
362 /* extract fetch result */
364 result = [fullResult valueForKey:@"fetch"];
365 if (![result isKindOfClass:[NSArray class]]) {
367 @"ERROR: unexpected IMAP4 result (missing 'fetch'): %@",
369 return [NSException exceptionWithHTTPStatus:500 /* server error */
370 reason:@"unexpected IMAP4 result"];
372 if ([result count] == 0)
375 result = [result objectAtIndex:0];
377 /* extract message */
379 if ((content = [result valueForKey:@"message"]) == nil) {
381 @"ERROR: unexpected IMAP4 result (missing 'message'): %@",
383 return [NSException exceptionWithHTTPStatus:500 /* server error */
384 reason:@"unexpected IMAP4 result"];
387 return [[content copy] autorelease];
390 - (NSString *)contentAsString {
394 if ((content = [self content]) == nil)
396 if ([content isKindOfClass:[NSException class]])
399 s = [[NSString alloc] initWithData:content
400 encoding:NSISOLatin1StringEncoding];
403 @"ERROR: could not convert data of length %d to string",
407 return [s autorelease];
410 /* bulk fetching of plain/text content */
412 - (BOOL)shouldFetchPartOfType:(NSString *)_type subtype:(NSString *)_subtype {
414 This method decides which parts are 'prefetched' for display. Those are
415 usually text parts (the set is currently hardcoded in this method ...).
417 _type = [_type lowercaseString];
418 _subtype = [_subtype lowercaseString];
420 if ([_type isEqualToString:@"text"]) {
421 if ([_subtype isEqualToString:@"plain"])
424 if ([_subtype isEqualToString:@"calendar"]) /* we also fetch calendars */
428 if ([_type isEqualToString:@"application"]) {
429 if ([_subtype isEqualToString:@"pgp-signature"])
431 if ([_subtype hasPrefix:@"x-vnd.kolab."])
438 - (void)addRequiredKeysOfStructure:(id)_info path:(NSString *)_p
439 toArray:(NSMutableArray *)_keys
440 recurse:(BOOL)_recurse
443 This is used to collect the set of IMAP4 fetch-keys required to fetch
444 the basic parts of the body structure. That is, to fetch all parts which
445 are displayed 'inline' in a single IMAP4 fetch.
447 The method calls itself recursively to walk the body structure.
454 /* Note: if the part itself doesn't qualify, we still check subparts */
455 fetchPart = [self shouldFetchPartOfType:[_info valueForKey:@"type"]
456 subtype:[_info valueForKey:@"subtype"]];
460 if ([_p length] > 0) {
461 k = [[@"body[" stringByAppendingString:_p] stringByAppendingString:@"]"];
465 for some reason we need to add ".TEXT" for plain text stuff on root
467 TODO: check with HTML
479 parts = [(NSDictionary *)_info objectForKey:@"parts"];
480 for (i = 0, count = [parts count]; i < count; i++) {
484 sp = ([_p length] > 0)
485 ? [_p stringByAppendingFormat:@".%d", i + 1]
486 : [NSString stringWithFormat:@"%d", i + 1];
488 childInfo = [parts objectAtIndex:i];
490 [self addRequiredKeysOfStructure:childInfo path:sp toArray:_keys
496 if ((body = [(NSDictionary *)_info objectForKey:@"body"]) != nil) {
499 sp = [[body valueForKey:@"type"] lowercaseString];
500 if ([sp isEqualToString:@"multipart"])
503 sp = [_p length] > 0 ? [_p stringByAppendingString:@".1"] : @"1";
504 [self addRequiredKeysOfStructure:body path:sp toArray:_keys
509 - (NSArray *)plainTextContentFetchKeys {
511 The name is not 100% correct. The method returns all body structure fetch
512 keys which are marked by the -shouldFetchPartOfType:subtype: method.
516 ma = [NSMutableArray arrayWithCapacity:4];
517 [self addRequiredKeysOfStructure:[[self clientObject] bodyStructure]
518 path:@"" toArray:ma recurse:YES];
522 - (NSDictionary *)fetchPlainTextParts:(NSArray *)_fetchKeys {
523 // TODO: is the name correct or does it also fetch other parts?
524 NSMutableDictionary *flatContents;
528 [self debugWithFormat:@"fetch keys: %@", _fetchKeys];
530 result = [self fetchParts:_fetchKeys];
531 result = [result valueForKey:@"RawResponse"]; // hackish
533 // Note: -valueForKey: doesn't work!
534 result = [(NSDictionary *)result objectForKey:@"fetch"];
536 count = [_fetchKeys count];
537 flatContents = [NSMutableDictionary dictionaryWithCapacity:count];
538 for (i = 0; i < count; i++) {
542 key = [_fetchKeys objectAtIndex:i];
543 data = [(NSDictionary *)[(NSDictionary *)result objectForKey:key]
544 objectForKey:@"data"];
546 if (![data isNotNull]) {
547 [self errorWithFormat:@"got no data for key: %@", key];
551 if ([key isEqualToString:@"body[text]"])
552 key = @""; // see key collector for explanation (TODO: where?)
553 else if ([key hasPrefix:@"body["]) {
556 key = [key substringFromIndex:5];
557 r = [key rangeOfString:@"]"];
559 key = [key substringToIndex:r.location];
561 [flatContents setObject:data forKey:key];
566 - (NSDictionary *)fetchPlainTextParts {
567 return [self fetchPlainTextParts:[self plainTextContentFetchKeys]];
570 /* convert parts to strings */
572 - (NSString *)stringForData:(NSData *)_data partInfo:(NSDictionary *)_info
574 NSString *charset, *encoding, *s;
577 if (![_data isNotNull])
582 encoding = [[_info objectForKey:@"encoding"] lowercaseString];
584 if ([encoding isEqualToString: @"7bit"]
585 || [encoding isEqualToString: @"8bit"])
587 else if ([encoding isEqualToString: @"base64"])
588 mailData = [_data dataByDecodingBase64];
589 else if ([encoding isEqualToString: @"quoted-printable"])
590 mailData = [_data dataByDecodingQuotedPrintable];
592 charset = [[_info valueForKey:@"parameterList"] valueForKey: @"charset"];
593 if (![charset length])
595 s = [[NSString alloc] initWithData:mailData encoding:NSUTF8StringEncoding];
599 s = [NSString stringWithData: mailData
600 usingEncodingNamed: charset];
605 - (NSDictionary *)stringifyTextParts:(NSDictionary *)_datas {
606 NSMutableDictionary *md;
610 md = [NSMutableDictionary dictionaryWithCapacity:4];
611 keys = [_datas keyEnumerator];
612 while ((key = [keys nextObject]) != nil) {
616 info = [self lookupInfoForBodyPart:key];
617 if ((s = [self stringForData:[_datas objectForKey:key] partInfo:info]))
618 [md setObject:s forKey:key];
622 - (NSDictionary *)fetchPlainTextStrings:(NSArray *)_fetchKeys {
624 The fetched parts are NSData objects, this method converts them into
625 NSString objects based on the information inside the bodystructure.
627 The fetch-keys are body fetch-keys like: body[text] or body[1.2.3].
628 The keys in the result dictionary are "" for 'text' and 1.2.3 for parts.
632 if ((datas = [self fetchPlainTextParts:_fetchKeys]) == nil)
634 if ([datas isKindOfClass:[NSException class]])
637 return [self stringifyTextParts:datas];
642 - (NSException *)addFlags:(id)_flags {
643 return [[self imap4Connection] addFlags:_flags toURL:[self imap4URL]];
645 - (NSException *)removeFlags:(id)_flags {
646 return [[self imap4Connection] removeFlags:_flags toURL:[self imap4URL]];
651 - (BOOL)isDeletionAllowed {
652 return [[self container] isDeleteAndExpungeAllowed];
657 - (id)lookupImap4BodyPartKey:(NSString *)_key inContext:(id)_ctx {
658 // TODO: we might want to check for existence prior controller creation
661 clazz = [SOGoMailBodyPart bodyPartClassForKey:_key inContext:_ctx];
662 return [[[clazz alloc] initWithName:_key inContainer:self] autorelease];
665 - (id)lookupName:(NSString *)_key inContext:(id)_ctx acquire:(BOOL)_flag {
668 /* first check attributes directly bound to the application */
669 if ((obj = [super lookupName:_key inContext:_ctx acquire:NO]) != nil)
672 /* lookup body part */
674 if ([self isBodyPartKey:_key inContext:_ctx]) {
675 if ((obj = [self lookupImap4BodyPartKey:_key inContext:_ctx]) != nil) {
677 [self logWithFormat:@"mail looked up part %@: %@", _key, obj];
682 /* return 404 to stop acquisition */
683 return [NSException exceptionWithHTTPStatus:404 /* Not Found */
684 reason:@"Did not find mail method or part-reference!"];
689 - (BOOL)davIsCollection {
690 /* while a mail has child objects, it should appear as a file in WebDAV */
694 - (id)davContentLength {
695 return [[self fetchCoreInfos] valueForKey:@"size"];
698 - (NSDate *)davCreationDate {
699 // TODO: use INTERNALDATE once NGImap4 supports that
702 - (NSDate *)davLastModified {
703 return [self davCreationDate];
706 - (NSException *)davMoveToTargetObject:(id)_target newName:(NSString *)_name
709 [self logWithFormat:@"TODO: should move mail as '%@' to: %@",
711 return [NSException exceptionWithHTTPStatus:501 /* Not Implemented */
712 reason:@"not implemented"];
715 - (NSException *)davCopyToTargetObject:(id)_target newName:(NSString *)_name
719 Note: this is special because we create SOGoMailObject's even if they do
720 not exist (for performance reasons).
722 Also: we cannot really take a target resource, the ID will be assigned by
724 We even cannot return a 'location' header instead because IMAP4
725 doesn't tell us the new ID.
729 destImap4URL = ([_name length] == 0)
730 ? [[_target container] imap4URL]
731 : [_target imap4URL];
733 return [[self mailManager] copyMailURL:[self imap4URL]
734 toFolderURL:destImap4URL
735 password:[self imap4Password]];
740 - (id)GETAction:(id)_ctx {
745 if ((error = [self matchesRequestConditionInContext:_ctx]) != nil) {
746 /* check whether the mail still exists */
747 if (![self doesMailExist]) {
748 return [NSException exceptionWithHTTPStatus:404 /* Not Found */
749 reason:@"mail was deleted"];
751 return error; /* return 304 or 416 */
754 content = [self content];
755 if ([content isKindOfClass:[NSException class]])
757 if (content == nil) {
758 return [NSException exceptionWithHTTPStatus:404 /* Not Found */
759 reason:@"did not find IMAP4 message"];
762 r = [(WOContext *)_ctx response];
763 [r setHeader:@"message/rfc822" forKey:@"content-type"];
764 [r setContent:content];
770 - (NSException *)trashInContext:(id)_ctx {
772 Trashing is three actions:
773 a) copy to trash folder
774 b) mark mail as deleted
777 In case b) or c) fails, we can't do anything because IMAP4 doesn't tell us
778 the ID used in the trash folder.
780 SOGoMailFolder *trashFolder;
783 // TODO: check for safe HTTP method
785 trashFolder = [[self mailAccountFolder] trashFolderInContext:_ctx];
786 if ([trashFolder isKindOfClass:[NSException class]])
787 return (NSException *)trashFolder;
788 if (![trashFolder isNotNull]) {
789 return [NSException exceptionWithHTTPStatus:500 /* Server Error */
790 reason:@"Did not find Trash folder!"];
792 [trashFolder flushMailCaches];
796 error = [self davCopyToTargetObject:trashFolder
797 newName:@"fakeNewUnusedByIMAP4" /* autoassigned */
799 if (error != nil) return error;
801 /* b) mark deleted */
803 error = [[self imap4Connection] markURLDeleted:[self imap4URL]];
804 if (error != nil) return error;
808 error = [[self imap4Connection] expungeAtURL:[[self container] imap4URL]];
809 if (error != nil) return error; // TODO: unflag as deleted?
810 [self flushMailCaches];
815 - (NSException *) moveToFolderNamed: (NSString *) folderName
819 Trashing is three actions:
820 a) copy to trash folder
821 b) mark mail as deleted
824 In case b) or c) fails, we can't do anything because IMAP4 doesn't tell us
825 the ID used in the trash folder.
827 SOGoMailFolder *destFolder;
828 NSEnumerator *folders;
829 NSString *currentFolderName, *reason;
832 // TODO: check for safe HTTP method
834 destFolder = [self mailAccountsFolder];
835 folders = [[folderName componentsSeparatedByString: @"/"] objectEnumerator];
836 currentFolderName = [folders nextObject];
837 currentFolderName = [folders nextObject];
839 while (currentFolderName)
841 destFolder = [destFolder lookupName: currentFolderName
844 if ([destFolder isKindOfClass: [NSException class]])
845 return (NSException *) destFolder;
846 currentFolderName = [folders nextObject];
849 if (!([destFolder isKindOfClass: [SOGoMailFolder class]]
850 && [destFolder isNotNull]))
852 reason = [NSString stringWithFormat: @"Did not find folder name '%@'!",
854 return [NSException exceptionWithHTTPStatus:500 /* Server Error */
857 [destFolder flushMailCaches];
861 error = [self davCopyToTargetObject: destFolder
862 newName:@"fakeNewUnusedByIMAP4" /* autoassigned */
864 if (error != nil) return error;
866 /* b) mark deleted */
868 error = [[self imap4Connection] markURLDeleted: [self imap4URL]];
869 if (error != nil) return error;
873 error = [[self imap4Connection] expungeAtURL:[[self container] imap4URL]];
874 if (error != nil) return error; // TODO: unflag as deleted?
875 [self flushMailCaches];
880 - (NSException *)delete {
882 Note: delete is different to DELETEAction: for mails! The 'delete' runs
883 either flags a message as deleted or moves it to the Trash while
884 the DELETEAction: really deletes a message (by flagging it as
885 deleted _AND_ performing an expunge).
887 // TODO: copy to Trash folder
890 // TODO: check for safe HTTP method
892 error = [[self imap4Connection] markURLDeleted:[self imap4URL]];
895 - (id)DELETEAction:(id)_ctx {
898 // TODO: ensure safe HTTP method
900 error = [[self imap4Connection] markURLDeleted:[self imap4URL]];
901 if (error != nil) return error;
903 error = [[self imap4Connection] expungeAtURL:[[self container] imap4URL]];
904 if (error != nil) return error; // TODO: unflag as deleted?
906 return [NSNumber numberWithBool:YES]; /* delete was successful */
909 /* some mail classification */
911 - (BOOL)isKolabObject {
914 if ((h = [self mailHeaders]) != nil)
915 return [[h objectForKey:@"x-kolab-type"] isNotEmpty];
917 // TODO: we could check the body structure?
922 - (BOOL)isMailingListMail {
925 if ((h = [self mailHeaders]) == nil)
928 return [[h objectForKey:@"list-id"] isNotEmpty];
931 - (BOOL)isVirusScanned {
934 if ((h = [self mailHeaders]) == nil)
937 if (![[h objectForKey:@"x-virus-status"] isNotEmpty]) return NO;
938 if (![[h objectForKey:@"x-virus-scanned"] isNotEmpty]) return NO;
942 - (NSString *)scanListHeaderValue:(id)_value
943 forFieldWithPrefix:(NSString *)_prefix
945 /* Note: not very tolerant on embedded commands and <> */
946 // TODO: does not really belong here, should be a header-field-parser
949 if (![_value isNotEmpty])
952 if ([_value isKindOfClass:[NSArray class]]) {
956 e = [_value objectEnumerator];
957 while ((value = [e nextObject]) != nil) {
958 value = [self scanListHeaderValue:value forFieldWithPrefix:_prefix];
959 if (value != nil) return value;
964 if (![_value isKindOfClass:[NSString class]])
967 /* check for commas in string values */
968 r = [_value rangeOfString:@","];
970 return [self scanListHeaderValue:[_value componentsSeparatedByString:@","]
971 forFieldWithPrefix:_prefix];
974 /* value qualifies */
975 if (![(NSString *)_value hasPrefix:_prefix])
979 if ([_value characterAtIndex:0] == '<') {
980 r = [_value rangeOfString:@">"];
981 _value = (r.length == 0)
982 ? [_value substringFromIndex:1]
983 : [_value substringWithRange:NSMakeRange(1, r.location - 2)];
989 - (NSString *)mailingListArchiveURL {
990 return [self scanListHeaderValue:
991 [[self mailHeaders] objectForKey:@"list-archive"]
992 forFieldWithPrefix:@"<http://"];
994 - (NSString *)mailingListSubscribeURL {
995 return [self scanListHeaderValue:
996 [[self mailHeaders] objectForKey:@"list-subscribe"]
997 forFieldWithPrefix:@"<http://"];
999 - (NSString *)mailingListUnsubscribeURL {
1000 return [self scanListHeaderValue:
1001 [[self mailHeaders] objectForKey:@"list-unsubscribe"]
1002 forFieldWithPrefix:@"<http://"];
1007 - (id)davEntityTag {
1009 Note: There is one thing which *can* change for an existing message,
1010 those are the IMAP4 flags (and annotations, which we do not use).
1011 Since we don't render the flags, it should be OK, if this changes
1012 we must embed the flagging into the etag.
1016 - (int)zlGenerationCount {
1017 return 0; /* mails never change */
1020 /* Outlook mail tagging */
1022 - (NSString *)outlookMessageClass {
1025 if ((type = [[self mailHeaders] objectForKey:@"x-kolab-type"]) != nil) {
1026 if ([type isEqualToString:@"application/x-vnd.kolab.contact"])
1027 return @"IPM.Contact";
1028 if ([type isEqualToString:@"application/x-vnd.kolab.task"])
1030 if ([type isEqualToString:@"application/x-vnd.kolab.event"])
1031 return @"IPM.Appointment";
1032 if ([type isEqualToString:@"application/x-vnd.kolab.note"])
1034 if ([type isEqualToString:@"application/x-vnd.kolab.journal"])
1035 return @"IPM.Journal";
1038 return @"IPM.Message"; /* email, default class */
1043 - (BOOL)isDebuggingEnabled {
1047 @end /* SOGoMailObject */