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sogo/SoObjects/SOGo/SOGoContentObject.m

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/*
Copyright (C) 2006-2014 Inverse inc.
Copyright (C) 2004-2005 SKYRIX Software AG
This file is part of SOGo.
SOGo is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
SOGo is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with OGo; see the file COPYING. If not, write to the
Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
*/
#import <Foundation/NSArray.h>
#import <Foundation/NSDictionary.h>
#import <Foundation/NSString.h>
#import <Foundation/NSValue.h>
#import <NGObjWeb/NSException+HTTP.h>
#import <NGObjWeb/WOContext.h>
#import <NGObjWeb/WOResponse.h>
#import <NGObjWeb/WORequest.h>
#import <NGExtensions/NSObject+Logs.h>
#import <GDLContentStore/GCSFolder.h>
#import <NGCards/iCalCalendar.h>
#import <NGCards/NGVCard.h>
#import "NSCalendarDate+SOGo.h"
#import "SOGoCache.h"
#import "SOGoGCSFolder.h"
#import "SOGoUser.h"
#import "SOGoPermissions.h"
#import "SOGoContentObject.h"
@interface SOGoContentObject(ETag)
- (NSArray *)parseETagList:(NSString *)_c;
@end
@implementation SOGoContentObject
+ (id) objectWithRecord: (NSDictionary *) objectRecord
inContainer: (SOGoGCSFolder *) newContainer
{
SOGoContentObject *newObject;
newObject = [[self alloc] initWithRecord: objectRecord
inContainer: newContainer];
[newObject autorelease];
return newObject;
}
+ (id) objectWithName: (NSString *) newName
andContent: (NSString *) newContent
inContainer: (SOGoGCSFolder *) newContainer
{
SOGoContentObject *newObject;
newObject = [[self alloc] initWithName: newName
andContent: newContent
inContainer: newContainer];
[newObject autorelease];
return newObject;
}
// TODO: check superclass version
- (id) init
{
if ((self = [super init]))
{
isNew = NO;
content = nil;
version = 0;
lastModified = nil;
creationDate = nil;
}
return self;
}
- (Class *) parsingClass
{
[self subclassResponsibility: _cmd];
return nil;
}
- (void) _setRecord: (NSDictionary *) objectRecord
{
id data;
int intValue;
data = [objectRecord objectForKey: @"c_content"];
if (data)
ASSIGN (content, data);
data = [objectRecord objectForKey: @"c_version"];
if (data)
version = [data unsignedIntValue];
data = [objectRecord objectForKey: @"c_creationdate"];
if (data)
{
intValue = [data intValue];
ASSIGN (creationDate,
[NSCalendarDate dateWithTimeIntervalSince1970: intValue]);
}
data = [objectRecord objectForKey: @"c_lastmodified"];
if (data)
{
intValue = [[objectRecord objectForKey: @"c_lastmodified"] intValue];
ASSIGN (lastModified,
[NSCalendarDate dateWithTimeIntervalSince1970: intValue]);
}
}
- (id) initWithRecord: (NSDictionary *) objectRecord
inContainer: (SOGoGCSFolder *) newContainer
{
NSString *newName;
newName = [objectRecord objectForKey: @"c_name"];
if ((self = [self initWithName: newName inContainer: newContainer]))
{
[self _setRecord: objectRecord];
}
return self;
}
- (id) initWithName: (NSString *) newName
andContent: (NSString *) newContent
inContainer: (SOGoGCSFolder *) newContainer
{
if ((self = [self initWithName: newName inContainer: newContainer]))
{
ASSIGN (content, newContent);
}
return self;
}
- (void) dealloc
{
[content release];
[creationDate release];
[lastModified release];
[super dealloc];
}
/* accessors */
- (BOOL) isFolderish
{
return NO;
}
/* content */
- (BOOL) isNew
{
return isNew;
}
- (void) setIsNew: (BOOL) newIsNew
{
isNew = newIsNew;
}
- (unsigned int) version
{
return version;
}
- (NSCalendarDate *) creationDate
{
return creationDate;
}
- (NSCalendarDate *) lastModified
{
return lastModified;
}
- (NSString *) contentAsString
{
return content;
}
- (NSException *) saveComponent: (id) theComponent
baseVersion: (unsigned int) newVersion
{
/* Note: "iCal multifolder saves" are implemented in the apt subclass! */
GCSFolder *folder;
NSException *ex;
NSCalendarDate *now;
NSString *newContent;
ex = nil;
newContent = [theComponent versitString];
now = [NSCalendarDate calendarDate];
if (!content)
ASSIGN (creationDate, now);
ASSIGN (lastModified, now);
ASSIGN (content, newContent);
version = newVersion;
folder = [container ocsFolder];
if (folder)
{
ex = [folder writeContent: newContent
fromComponent: theComponent
toName: nameInContainer
baseVersion: &version];
if (ex)
[self errorWithFormat:@"write failed: %@", ex];
}
else
[self errorWithFormat:@"Did not find folder of content object."];
[container removeChildRecordWithName: nameInContainer];
[[SOGoCache sharedCache] unregisterObjectWithName: nameInContainer
inContainer: container];
return ex;
}
- (NSException *) saveComponent: (id) theComponent
{
return [self saveComponent: theComponent baseVersion: version];
}
/* actions */
- (NSException *) copyToFolder: (SOGoGCSFolder *) newFolder
{
[self subclassResponsibility: _cmd];
return nil;
}
- (NSException *) moveToFolder: (SOGoGCSFolder *) newFolder
{
[self subclassResponsibility: _cmd];
}
- (NSException *) delete
{
/* Note: "iCal multifolder saves" are implemented in the apt subclass! */
GCSFolder *folder;
NSException *ex;
// TODO: add precondition check? (or add DELETEAction?)
if ((folder = [container ocsFolder]) == nil) {
[self errorWithFormat:@"Did not find folder of content object."];
return nil;
}
if ((ex = [folder deleteContentWithName:[self nameInContainer]])) {
[self errorWithFormat:@"delete failed: %@", ex];
return ex;
}
[container removeChildRecordWithName: nameInContainer];
[[SOGoCache sharedCache] unregisterObjectWithName: nameInContainer
inContainer: container];
return nil;
}
/* actions */
// - (id) lookupName:
// {
// SoSelectorInvocation *invocation;
// NSString *name;
// name = [NSString stringWithFormat: @"%@:", [_key davMethodToObjC]];
// invocation = [[SoSelectorInvocation alloc]
// initWithSelectorNamed: name
// addContextParameter: YES];
// [invocation autorelease];
// return invocation;
// }
- (id) PUTAction: (WOContext *) _ctx
{
WORequest *rq;
NSException *error;
unsigned int baseVersion;
NSArray *etags;
NSString *etag;
WOResponse *response;
error = [self matchesRequestConditionInContext: _ctx];
if (error)
response = (WOResponse *) error;
else
{
rq = [_ctx request];
/* determine base version from etag in if-match header */
/*
Note: The -matchesRequestConditionInContext: already checks whether the
etag matches and returns an HTTP exception in case it doesn't.
We retrieve the etag again here to _ensure_ a transactionally save
commit.
(between the check and the update a change could have been done)
*/
etags = [self parseETagList: [rq headerForKey: @"if-match"]];
if ([etags count] > 0)
{
if ([etags count] > 1)
{
/*
Note: we would have to attempt a save for _each_ of the etags
being passed in! In practice most WebDAV clients submit
exactly one etag.
*/
[self warnWithFormat:
@"Got multiple if-match etags from client, only"
@" attempting to save with the first: %@", etags];
}
etag = [etags objectAtIndex: 0];
}
else
etag = nil;
baseVersion = (isNew ? 0 : version);
/* attempt a save */
error = [self saveComponent: [[self parsingClass] parseSingleFromSource: [rq contentAsString]]
baseVersion: baseVersion];
if (error)
response = (WOResponse *) error;
else
{
response = [_ctx response];
/* setup response */
// TODO: this should be automatic in the SoDispatcher if we return
// nil?
if (isNew)
[response setStatus: 201 /* Created */];
else
[response setStatus: 204 /* No Content */];
etag = [self davEntityTag];
if (etag)
[response setHeader: etag forKey: @"etag"];
}
}
return response;
}
/* E-Tags */
// - (id) davEntityTag
// {
// NSString *etag;
// etag = [NSString stringWithFormat: @"<D:getetag>\"gcs%.8d\"</D:getetag>", version];
// return [SOGoWebDAVValue valueForObject: etag attributes: nil];;
// }
- (id) davEntityTag
{
return [NSString stringWithFormat: @"\"gcs%.8d\"", version];
}
/* WebDAV */
- (NSString *) davCreationDate
{
return [creationDate rfc822DateString];
}
- (NSString *) davLastModified
{
return [lastModified rfc822DateString];
}
- (NSString *) davContentLength
{
NSInteger length;
/* The following may cause a crash, as stated in
http://www.sogo.nu/bugs/view.php?id=915:
length = [content lengthOfBytesUsingEncoding: NSUTF8StringEncoding]; */
if (content)
length = strlen ([content UTF8String]);
else
length = 0;
return [NSString stringWithFormat: @"%u", length];
}
- (NSException *) davMoveToTargetObject: (id) _target
newName: (NSString *) _name
inContext: (id) _ctx
{
/*
Note: even for new objects we won't get a new name but a preinstantiated
object representing the new one.
*/
return [self moveToFolder: _target];
}
- (NSException *) davCopyToTargetObject: (id)_target
newName: (NSString *) _name
inContext: (id) _ctx
{
/*
Note: even for new objects we won't get a new name but a preinstantiated
object representing the new one.
*/
[self logWithFormat:
@"TODO: copy not implemented:\n target: %@\n new name: %@",
_target, _name];
return [NSException exceptionWithHTTPStatus:405 /* not allowed */
reason:@"this object cannot be copied via WebDAV"];
}
/* acls */
- (NSArray *) aclUsers
{
NSMutableArray *pathArray;
pathArray = [NSMutableArray arrayWithArray: [container pathArrayToFolder]];
[pathArray addObject: nameInContainer];
return [container aclUsersForObjectAtPath: pathArray];
}
- (NSArray *) aclsForUser: (NSString *) uid
{
NSMutableArray *acls;
NSArray *containerAcls;
acls = [NSMutableArray array];
/* this is unused... */
// ownAcls = [container aclsForUser: uid
// forObjectAtPath: [self pathArrayToSOGoObject]];
// [acls addObjectsFromArray: ownAcls];
containerAcls = [container aclsForUser: uid];
if ([containerAcls count] > 0)
{
[acls addObjectsFromArray: containerAcls];
/* The creation of an object is actually a "modification" to an
unexisting object. When the object is new, we give the
"ObjectCreator" the "ObjectModifier" role temporarily while we
disallow the "ObjectModifier" users to modify them, unless they are
ObjectCreators too. */
if (isNew)
{
if ([containerAcls containsObject: SOGoRole_ObjectCreator])
[acls addObject: SOGoRole_ObjectEditor];
else
[acls removeObject: SOGoRole_ObjectEditor];
}
}
return acls;
}
- (void) setRoles: (NSArray *) roles
forUser: (NSString *) uid
{
return [container setRoles: roles
forUser: uid
forObjectAtPath: [self pathArrayToSoObject]];
}
- (void) removeAclsForUsers: (NSArray *) users
{
return [container removeAclsForUsers: users
forObjectAtPath: [self pathArrayToSoObject]];
}
- (NSString *) defaultUserID
{
return @"<default>";
}
@end /* SOGoContentObject */
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