Improve UUID translation in nodes
[pithos-macos] / pithos-macos / PithosSubdirNode.m
index 371324c..7c3d513 100644 (file)
 #import "ASIPithosObjectRequest.h"
 #import "ASIPithosContainer.h"
 #import "ASIPithosObject.h"
+#import "ASIPithosSharingUser.h"
 #import "ASINetworkQueue.h"
 #import "ASIDownloadCache.h"
+#import "PithosAccount.h"
 #import "PithosUtilities.h"
 #import "PithosObjectNodeInfoController.h"
 
 static NSImage *sharedIcon = nil;
 
 @implementation PithosSubdirNode
-@synthesize pithosObject, versions;
-@synthesize isPublic;
+@synthesize pithosObject, versions, applyMetadataObjectRequest, refreshMetadataObjectRequest, refreshVersionsObjectRequest;
+@synthesize isPublic, translatedModifiedBy, translatedPermissions;
 
 + (void)initialize {
        if (self == [PithosSubdirNode class])
-        sharedIcon = [[[NSWorkspace sharedWorkspace] iconForFileType:NSFileTypeForHFSTypeCode(kGenericFolderIcon)] retain];
+        sharedIcon = [[NSWorkspace sharedWorkspace] iconForFileType:NSFileTypeForHFSTypeCode(kGenericFolderIcon)];
 }
 
 #pragma mark -
 #pragma mark Object Lifecycle
 
-- (id)initWithPithos:(ASIPithos *)aPithos 
-     pithosContainer:(ASIPithosContainer *)aPithosContainer 
-        pithosObject:(ASIPithosObject *)aPithosObject {
-    if ((self = [super init])) {
-        self.pithos = aPithos;
+- (id)initWithPithosAccountManager:(PithosAccount *)aPithosAccountManager
+                         andPithos:(ASIPithos *)aPithos
+                   pithosContainer:(ASIPithosContainer *)aPithosContainer
+                      pithosObject:(ASIPithosObject *)aPithosObject {
+    if ((self = [super initWithPithosAccountManager:aPithosAccountManager])) {
+        pithos = aPithos;
+        refreshParent = NO;
         self.pithosContainer = aPithosContainer;
         self.pithosObject = aPithosObject;
-        refreshParent = NO;
     }
     return self;
 }
 
 - (void)dealloc {
     [refreshVersionsObjectRequest clearDelegatesAndCancel];
-    [refreshVersionsObjectRequest release];
     [refreshMetadataObjectRequest clearDelegatesAndCancel];
-    [refreshMetadataObjectRequest release];
     [applyMetadataObjectRequest clearDelegatesAndCancel];
-    [applyMetadataObjectRequest release];
-    [versions release];
-    [pithosObject release];
-    [super dealloc];
+}
+
+#pragma mark -
+#pragma mark Internal
+
+- (void)updateModifiedBy {
+    if (!pithosObject.modifiedBy) {
+        self.translatedModifiedBy = nil;
+    } else if (pithosAccountManager) {
+        NSString *displayname = [pithosAccountManager displaynameForUUID:pithosObject.modifiedBy safe:NO];
+        if (displayname) {
+            self.translatedModifiedBy = displayname;
+        } else {
+            [pithosAccountManager updateUserCatalogForForDisplaynames:nil UUIDs:[NSArray arrayWithObject:pithosObject.modifiedBy]];
+            self.translatedModifiedBy = [pithosAccountManager displaynameForUUID:pithosObject.modifiedBy safe:YES];
+        }
+    } else {
+        self.translatedModifiedBy = [pithosObject.modifiedBy copy];
+    }
+}
+
+- (void)updatePermissions {
+    if (!pithosObject) {
+        self.translatedPermissions = [NSMutableArray array];
+    } else if (pithosAccountManager) {
+        NSMutableSet *UUIDs = [NSMutableSet set];
+        for (ASIPithosSharingUser *sharingUser in pithosObject.permissions) {
+            [UUIDs addObject:sharingUser.name];
+        }
+        [UUIDs removeObject:@""];
+        [UUIDs removeObject:@"*"];
+        if (UUIDs.count) {
+            [pithosAccountManager updateUserCatalogForForDisplaynames:nil UUIDs:[UUIDs allObjects]];
+        }
+        
+        NSMutableArray *newTranslatedPermissions = [NSMutableArray arrayWithCapacity:pithosObject.permissions.count];
+        for (ASIPithosSharingUser *sharingUser in pithosObject.permissions) {
+            ASIPithosSharingUser *translatedSharingUser = [sharingUser copy];
+            translatedSharingUser.name = [pithosAccountManager displaynameForUUID:translatedSharingUser.name safe:YES];
+            [newTranslatedPermissions addObject:translatedSharingUser];
+        }
+        self.translatedPermissions = newTranslatedPermissions;
+    } else {
+        self.translatedPermissions = [NSMutableArray arrayWithArray:[pithosObject.permissions copy]];
+    }
 }
 
 #pragma mark -
@@ -89,9 +131,7 @@ static NSImage *sharedIcon = nil;
 
 - (void)setPithos:(ASIPithos *)aPithos {
     if (aPithos && ![aPithos isEqualTo:pithos]) {
-        [pithos release];
-        pithos = [aPithos retain];
-        [url release];
+        pithos = aPithos;
         url = nil;
     }
 }
@@ -111,9 +151,8 @@ static NSImage *sharedIcon = nil;
         displayName = [pithosObject.name lastPathComponent];
         if (!pithosObject.subdir && [pithosObject.name hasSuffix:@"/"])
             displayName = [displayName stringByAppendingString:@"/"];
-        [displayName retain];
     } 
-    return [[displayName copy] autorelease];
+    return [displayName copy];
 }
 
 - (void)setDisplayName:(NSString *)aDisplayName {    
@@ -121,14 +160,15 @@ static NSImage *sharedIcon = nil;
 
 - (NSImage *)icon {
     if (icon == nil)
-        icon = [sharedIcon retain];
+        icon = sharedIcon;
     return icon;
 }
 
 - (void)setPithosObject:(ASIPithosObject *)aPithosObject {
     if (![pithosObject isEqualTo:aPithosObject]) {
-        [pithosObject release];
-        pithosObject = [aPithosObject retain];
+        pithosObject = aPithosObject;
+        [self updateModifiedBy];
+        [self updatePermissions];
     }
     if (pithosObject.subdir) {
         self.prefix = [pithosObject.name substringToIndex:([pithosObject.name length] - 1)];
@@ -138,7 +178,7 @@ static NSImage *sharedIcon = nil;
     self.isPublic = (pithosObject.publicURI != nil);
     // Refresh browser if the object is in my shared and is no longer shared
     if (shared && !pithosObject.subdir && !pithosObject.sharing) {
-        [[NSNotificationCenter defaultCenter] postNotificationName:@"PithosBrowserRefreshNeeeded" object:self];
+        [[NSNotificationCenter defaultCenter] postNotificationName:@"PithosBrowserRefreshNeeded" object:self];
     }
 }
 
@@ -161,6 +201,9 @@ static NSImage *sharedIcon = nil;
             self.pithosObject.sharing = aPithosObject.sharing;
             self.pithosObject.publicURI = aPithosObject.publicURI;
             self.pithosObject = pithosObject;
+            [self updatePermissions];
+        } else {
+            [self updateModifiedBy];
         }
     }
 }
@@ -178,8 +221,7 @@ static NSImage *sharedIcon = nil;
             if ((responseStatusCode != 201) && (responseStatusCode != 202))
                 [PithosUtilities unexpectedResponseStatusAlertWithRequest:applyMetadataObjectRequest];
             @synchronized(self) {
-                [applyMetadataObjectRequest release];
-                applyMetadataObjectRequest = nil;
+                self.applyMetadataObjectRequest = nil;
             }
             if ((responseStatusCode == 201) || (responseStatusCode == 202))
                 [self refreshInfo];
@@ -193,15 +235,13 @@ static NSImage *sharedIcon = nil;
                 refreshParent = NO;
             }
             @synchronized(self) {
-                [refreshMetadataObjectRequest release];
-                refreshMetadataObjectRequest = nil;
+                self.refreshMetadataObjectRequest = nil;
             }
         } else if ([request isEqualTo:refreshVersionsObjectRequest]) {
             [[pithosNodeInfoController window] makeFirstResponder:nil];
             self.versions = [refreshVersionsObjectRequest versions];
             @synchronized(self) {
-                [refreshVersionsObjectRequest release];
-                refreshVersionsObjectRequest = nil;
+                self.refreshVersionsObjectRequest = nil;
             }
         }
     }
@@ -215,18 +255,15 @@ static NSImage *sharedIcon = nil;
             [(NSMutableDictionary *)(newRequest.userInfo)setObject:[NSNumber numberWithUnsignedInteger:(--retries)] forKey:@"retries"];
             if ([request isEqualTo:applyMetadataObjectRequest]) {
                 @synchronized(self) {
-                    [applyMetadataObjectRequest release];
-                    applyMetadataObjectRequest = newRequest;
+                    self.applyMetadataObjectRequest = newRequest;
                 }
             } else if ([request isEqualTo:refreshMetadataObjectRequest]) {
                 @synchronized(self) {
-                    [refreshMetadataObjectRequest release];
-                    refreshMetadataObjectRequest = newRequest;
+                    self.refreshMetadataObjectRequest = newRequest;
                 }
             } else if ([request isEqualTo:refreshVersionsObjectRequest]) {
                 @synchronized(self) {
-                    [refreshVersionsObjectRequest release];
-                    refreshVersionsObjectRequest = newRequest;
+                    self.refreshVersionsObjectRequest = newRequest;
                 }
             }
             [[PithosUtilities prepareRequest:newRequest priority:[[newRequest.userInfo objectForKey:@"priority"] integerValue]] startAsynchronous];
@@ -234,20 +271,17 @@ static NSImage *sharedIcon = nil;
             if ([request isEqualTo:applyMetadataObjectRequest]) {
                 [PithosUtilities httpRequestErrorAlertWithRequest:applyMetadataObjectRequest];
                 @synchronized(self) {
-                    [applyMetadataObjectRequest release];
-                    applyMetadataObjectRequest = nil;
+                    self.applyMetadataObjectRequest = nil;
                 }
             } else if ([request isEqualTo:refreshMetadataObjectRequest]) {
                 [PithosUtilities httpRequestErrorAlertWithRequest:refreshMetadataObjectRequest];
                 @synchronized(self) {
-                    [refreshMetadataObjectRequest release];
-                    refreshMetadataObjectRequest = nil;
+                    self.refreshMetadataObjectRequest = nil;
                 }
             } else if ([request isEqualTo:refreshVersionsObjectRequest]) {
                 [PithosUtilities httpRequestErrorAlertWithRequest:refreshVersionsObjectRequest];
                 @synchronized(self) {
-                    [refreshVersionsObjectRequest release];
-                    refreshVersionsObjectRequest = nil;
+                    self.refreshVersionsObjectRequest = nil;
                 }
             }
         }
@@ -266,18 +300,12 @@ static NSImage *sharedIcon = nil;
                 ASIPithosObjectRequest *request = [ASIPithosObjectRequest objectMetadataRequestWithPithos:pithos 
                                                                                             containerName:pithosContainer.name 
                                                                                                objectName:prefix];
-                ASINetworkQueue *networkQueue = [ASINetworkQueue queue];
-                [networkQueue go];
-                [networkQueue addOperations:[NSArray arrayWithObject:[PithosUtilities prepareRequest:request]] waitUntilFinished:YES];
+                [PithosUtilities startAndWaitForRequest:request];
                 if ([request error]) {
-                    alert = [[[NSAlert alloc] init] autorelease];
-                    [alert setMessageText:@"HTTP Request Error"];
-                    [alert setInformativeText:[NSString stringWithFormat:@"An error occured: %@", [[request error] localizedDescription]]];
-                    [alert addButtonWithTitle:@"OK"];
-                    [alert runModal];
+                    [PithosUtilities httpRequestErrorAlertWithRequest:request];
                     return;
                 } else if (request.responseStatusCode == 200) {
-                    alert = [[[NSAlert alloc] init] autorelease];
+                    alert = [[NSAlert alloc] init];
                     [alert setMessageText:@"Apply changes"];
                     [alert setInformativeText:[NSString stringWithFormat:@"In order to apply the changes in '%@', the object at the same path must be replaced. Continue?", self.displayName]];
                     [alert addButtonWithTitle:@"OK"];
@@ -287,15 +315,9 @@ static NSImage *sharedIcon = nil;
                         request = [ASIPithosObjectRequest deleteObjectRequestWithPithos:pithos 
                                                                           containerName:pithosContainer.name 
                                                                              objectName:prefix];
-                        ASINetworkQueue *networkQueue = [ASINetworkQueue queue];
-                        [networkQueue go];
-                        [networkQueue addOperations:[NSArray arrayWithObject:[PithosUtilities prepareRequest:request]] waitUntilFinished:YES];
+                        [PithosUtilities startAndWaitForRequest:request];
                         if ([request error]) {
-                            alert = [[[NSAlert alloc] init] autorelease];
-                            [alert setMessageText:@"HTTP Request Error"];
-                            [alert setInformativeText:[NSString stringWithFormat:@"An error occured: %@", [[request error] localizedDescription]]];
-                            [alert addButtonWithTitle:@"OK"];
-                            [alert runModal];
+                            [PithosUtilities httpRequestErrorAlertWithRequest:request];
                             return;
                         } else if (request.responseStatusCode != 204) {
                             [PithosUtilities unexpectedResponseStatusAlertWithRequest:request];
@@ -314,18 +336,136 @@ static NSImage *sharedIcon = nil;
                 }
                 if (createObject) {
                     [[pithosNodeInfoController window] makeFirstResponder:nil];
-                    applyMetadataObjectRequest = [[ASIPithosObjectRequest writeObjectDataRequestWithPithos:pithos 
-                                                                                             containerName:pithosContainer.name 
-                                                                                                objectName:prefix 
-                                                                                                      eTag:nil
-                                                                                               contentType:@"application/directory"
-                                                                                           contentEncoding:pithosObject.contentEncoding 
-                                                                                        contentDisposition:pithosObject.contentDisposition 
-                                                                                                  manifest:pithosObject.manifest 
-                                                                                                   sharing:pithosObject.sharing 
-                                                                                                  isPublic:(isPublic ? ASIPithosObjectRequestPublicTrue : ASIPithosObjectRequestPublicFalse) 
-                                                                                                  metadata:pithosObject.metadata 
-                                                                                                      data:[NSData data]] retain];
+                    NSMutableArray *permissions = [NSMutableArray array];
+                    if (translatedPermissions.count) {
+                        for (ASIPithosSharingUser *translatedsSharingUser in translatedPermissions) {
+                            if (translatedsSharingUser.group.length &&
+                                [translatedsSharingUser.group rangeOfCharacterFromSet:[NSCharacterSet characterSetWithCharactersInString:@" -_~,;"]].location != NSNotFound) {
+                                NSAlert *alert = [[NSAlert alloc] init];
+                                [alert setMessageText:@"Invalid Input"];
+                                [alert setInformativeText:@"Group names cannot contain ' ', '-', '_', '~', ',' or ';'."];
+                                [alert addButtonWithTitle:@"OK"];
+                                [alert runModal];
+                                return;
+                            }
+                        }
+                        if (pithosAccountManager) {
+                            NSMutableSet *allUsers = [NSMutableSet set];
+                            for (ASIPithosSharingUser *translatedsSharingUser in translatedPermissions) {
+                                if (translatedsSharingUser.name.length) {
+                                    [allUsers addObject:translatedsSharingUser.name];
+                                }
+                            }
+                            [allUsers removeObject:@""];
+                            [allUsers removeObject:@"*"];
+                            if (allUsers.count) {
+                                ASIPithosRequest *userCatalogRequest = [pithosAccountManager updateUserCatalogForForDisplaynames:[allUsers allObjects]
+                                                                                                                           UUIDs:nil];
+                                if (userCatalogRequest.error || ((userCatalogRequest.responseStatusCode != 200) && (userCatalogRequest.responseStatusCode != 404))) {
+                                    return;
+                                } else if (userCatalogRequest.responseStatusCode == 200) {
+                                    // Check if all users exist.
+                                    NSDictionary *displaynameCatalog = [userCatalogRequest displaynameCatalog];
+                                    NSMutableArray *inexistentUsers = [NSMutableArray array];
+                                    for (NSString *user in allUsers) {
+                                        if (![displaynameCatalog objectForKey:user]) {
+                                            [inexistentUsers addObject:user];
+                                        }
+                                    }
+                                    if (!inexistentUsers.count) {
+                                        // Create permissions.
+                                        for (ASIPithosSharingUser *translatedsSharingUser in translatedPermissions) {
+                                            if (translatedsSharingUser.name.length) {
+                                                ASIPithosSharingUser *sharingUser = [translatedsSharingUser copy];
+                                                if (![sharingUser.name isEqualToString:@"*"]) {
+                                                    sharingUser.name = [displaynameCatalog objectForKey:sharingUser.name];
+                                                }
+                                                if (!sharingUser.permission) {
+                                                    sharingUser.permission = @"read";
+                                                }
+                                                [permissions addObject:sharingUser];
+                                            }
+                                        }
+                                    } else {
+                                        NSAlert *alert = [[NSAlert alloc] init];
+                                        if (inexistentUsers.count == 1) {
+                                            [alert setMessageText:@"Invalid User"];
+                                            [alert setInformativeText:[NSString stringWithFormat:@"User '%@' doesn't exist.", [inexistentUsers objectAtIndex:0]]];
+                                        } else {
+                                            [alert setMessageText:@"Invalid Users"];
+                                            [alert setInformativeText:[NSString stringWithFormat:@"Users '%@' don't exist.", [inexistentUsers componentsJoinedByString:@"', '"]]];
+                                        }
+                                        [alert addButtonWithTitle:@"OK"];
+                                        [alert runModal];
+                                        return;
+                                    }
+                                } else {
+                                    // 404. Since we don't translate to UUIDs, check for invalid chars.
+                                    BOOL valid = YES;
+                                    // Create permissions.
+                                    for (ASIPithosSharingUser *translatedsSharingUser in translatedPermissions) {
+                                        if (translatedsSharingUser.name.length &&
+                                            ([translatedsSharingUser.name rangeOfCharacterFromSet:[NSCharacterSet characterSetWithCharactersInString:@" ~,;:"]].location != NSNotFound)) {
+                                            valid = NO;
+                                            break;
+                                        }
+                                    }
+                                    if (valid) {
+                                        for (ASIPithosSharingUser *translatedsSharingUser in translatedPermissions) {
+                                            if (translatedsSharingUser.name.length) {
+                                                ASIPithosSharingUser *sharingUser = [translatedsSharingUser copy];
+                                                if (!sharingUser.permission) {
+                                                    sharingUser.permission = @"read";
+                                                }
+                                                [permissions addObject:sharingUser];
+                                            }
+                                        }
+                                    } else {
+                                        NSAlert *alert = [[NSAlert alloc] init];
+                                        [alert setMessageText:@"Invalid Input"];
+                                        [alert setInformativeText:@"Users cannot contain ' ', '~', ',', ';' or ':'."];
+                                        [alert addButtonWithTitle:@"OK"];
+                                        [alert runModal];
+                                        return;
+                                    }
+                                }
+                            } else {
+                                for (ASIPithosSharingUser *translatedsSharingUser in translatedPermissions) {
+                                    if ([translatedsSharingUser.name isEqualToString:@"*"]) {
+                                        ASIPithosSharingUser *sharingUser = [translatedsSharingUser copy];
+                                        if (!sharingUser.permission) {
+                                            sharingUser.permission = @"read";
+                                        }
+                                        [permissions addObject:sharingUser];
+                                    }
+                                }
+                            }
+                        } else {
+                            for (ASIPithosSharingUser *translatedsSharingUser in translatedPermissions) {
+                                if (translatedsSharingUser.name.length) {
+                                    ASIPithosSharingUser *sharingUser = [translatedsSharingUser copy];
+                                    if (!sharingUser.permission) {
+                                        sharingUser.permission = @"read";
+                                    }
+                                    [permissions addObject:sharingUser];
+                                }
+                            }
+                        }
+                    }
+                    pithosObject.permissions = permissions;
+                    
+                    self.applyMetadataObjectRequest = [ASIPithosObjectRequest writeObjectDataRequestWithPithos:pithos
+                                                                                                 containerName:pithosContainer.name
+                                                                                                    objectName:prefix
+                                                                                                          eTag:nil
+                                                                                                   contentType:@"application/directory"
+                                                                                               contentEncoding:pithosObject.contentEncoding
+                                                                                            contentDisposition:pithosObject.contentDisposition
+                                                                                                      manifest:pithosObject.manifest
+                                                                                                       sharing:(pithosObject.sharing ? pithosObject.sharing : @"")
+                                                                                                      isPublic:(isPublic ? ASIPithosObjectRequestPublicTrue : ASIPithosObjectRequestPublicFalse)
+                                                                                                      metadata:pithosObject.metadata
+                                                                                                          data:[NSData data]];
                     pithosObject.subdir = NO;
                     applyMetadataObjectRequest.delegate = self;
                     applyMetadataObjectRequest.didFinishSelector = @selector(performRequestFinishedDelegateInBackground:);
@@ -341,28 +481,146 @@ static NSImage *sharedIcon = nil;
             } else {
                 [[pithosNodeInfoController window] makeFirstResponder:nil];
                 if (sharingAccount) {
-                    applyMetadataObjectRequest = [[ASIPithosObjectRequest updateObjectMetadataRequestWithPithos:pithos 
-                                                                                                  containerName:pithosContainer.name 
-                                                                                                     objectName:pithosObject.name 
-                                                                                                contentEncoding:nil
-                                                                                             contentDisposition:nil
-                                                                                                       manifest:nil 
-                                                                                                        sharing:nil 
-                                                                                                       isPublic:(isPublic ? ASIPithosObjectRequestPublicTrue : ASIPithosObjectRequestPublicFalse) 
-                                                                                                       metadata:pithosObject.metadata
-                                                                                                         update:NO] retain];
+                    self.applyMetadataObjectRequest = [ASIPithosObjectRequest updateObjectMetadataRequestWithPithos:pithos
+                                                                                                      containerName:pithosContainer.name
+                                                                                                         objectName:pithosObject.name
+                                                                                                    contentEncoding:nil
+                                                                                                 contentDisposition:nil
+                                                                                                           manifest:nil
+                                                                                                            sharing:nil
+                                                                                                           isPublic:(isPublic ? ASIPithosObjectRequestPublicTrue : ASIPithosObjectRequestPublicFalse)
+                                                                                                           metadata:pithosObject.metadata
+                                                                                                             update:NO];
                     [applyMetadataObjectRequest setRequestUserFromDefaultTo:sharingAccount withPithos:pithos];
                 } else {
-                    applyMetadataObjectRequest = [[ASIPithosObjectRequest updateObjectMetadataRequestWithPithos:pithos 
-                                                                                                  containerName:pithosContainer.name 
-                                                                                                     objectName:pithosObject.name 
-                                                                                                contentEncoding:pithosObject.contentEncoding
-                                                                                             contentDisposition:pithosObject.contentDisposition 
-                                                                                                       manifest:pithosObject.manifest 
-                                                                                                        sharing:(pithosObject.sharing ? pithosObject.sharing : @"") 
-                                                                                                       isPublic:(isPublic ? ASIPithosObjectRequestPublicTrue : ASIPithosObjectRequestPublicFalse) 
-                                                                                                       metadata:pithosObject.metadata
-                                                                                                         update:NO] retain];
+                    NSMutableArray *permissions = [NSMutableArray array];
+                    if (translatedPermissions.count) {
+                        for (ASIPithosSharingUser *translatedsSharingUser in translatedPermissions) {
+                            if (translatedsSharingUser.group.length &&
+                                [translatedsSharingUser.group rangeOfCharacterFromSet:[NSCharacterSet characterSetWithCharactersInString:@" -_~,;"]].location != NSNotFound) {
+                                NSAlert *alert = [[NSAlert alloc] init];
+                                [alert setMessageText:@"Invalid Input"];
+                                [alert setInformativeText:@"Group names cannot contain ' ', '-', '_', '~', ',' or ';'."];
+                                [alert addButtonWithTitle:@"OK"];
+                                [alert runModal];
+                                return;
+                            }
+                        }
+                        if (pithosAccountManager) {
+                            NSMutableSet *allUsers = [NSMutableSet set];
+                            for (ASIPithosSharingUser *translatedsSharingUser in translatedPermissions) {
+                                if (translatedsSharingUser.name.length) {
+                                    [allUsers addObject:translatedsSharingUser.name];
+                                }
+                            }
+                            [allUsers removeObject:@""];
+                            [allUsers removeObject:@"*"];
+                            if (allUsers.count) {
+                                ASIPithosRequest *userCatalogRequest = [pithosAccountManager updateUserCatalogForForDisplaynames:[allUsers allObjects]
+                                                                                                                           UUIDs:nil];
+                                if (userCatalogRequest.error || ((userCatalogRequest.responseStatusCode != 200) && (userCatalogRequest.responseStatusCode != 404))) {
+                                    return;
+                                } else if (userCatalogRequest.responseStatusCode == 200) {
+                                    // Check if all users exist.
+                                    NSDictionary *displaynameCatalog = [userCatalogRequest displaynameCatalog];
+                                    NSMutableArray *inexistentUsers = [NSMutableArray array];
+                                    for (NSString *user in allUsers) {
+                                        if (![displaynameCatalog objectForKey:user]) {
+                                            [inexistentUsers addObject:user];
+                                        }
+                                    }
+                                    if (!inexistentUsers.count) {
+                                        // Create permissions.
+                                        for (ASIPithosSharingUser *translatedsSharingUser in translatedPermissions) {
+                                            if (translatedsSharingUser.name.length) {
+                                                ASIPithosSharingUser *sharingUser = [translatedsSharingUser copy];
+                                                if (![sharingUser.name isEqualToString:@"*"]) {
+                                                    sharingUser.name = [displaynameCatalog objectForKey:sharingUser.name];
+                                                }
+                                                if (!sharingUser.permission) {
+                                                    sharingUser.permission = @"read";
+                                                }
+                                                [permissions addObject:sharingUser];
+                                            }
+                                        }
+                                    } else {
+                                        NSAlert *alert = [[NSAlert alloc] init];
+                                        if (inexistentUsers.count == 1) {
+                                            [alert setMessageText:@"Invalid User"];
+                                            [alert setInformativeText:[NSString stringWithFormat:@"User '%@' doesn't exist.", [inexistentUsers objectAtIndex:0]]];
+                                        } else {
+                                            [alert setMessageText:@"Invalid Users"];
+                                            [alert setInformativeText:[NSString stringWithFormat:@"Users '%@' don't exist.", [inexistentUsers componentsJoinedByString:@"', '"]]];
+                                        }
+                                        [alert addButtonWithTitle:@"OK"];
+                                        [alert runModal];
+                                        return;
+                                    }
+                                } else {
+                                    // 404. Since we don't translate to UUIDs, check for invalid chars.
+                                    BOOL valid = YES;
+                                    // Create permissions.
+                                    for (ASIPithosSharingUser *translatedsSharingUser in translatedPermissions) {
+                                        if (translatedsSharingUser.name.length &&
+                                            ([translatedsSharingUser.name rangeOfCharacterFromSet:[NSCharacterSet characterSetWithCharactersInString:@" ~,;:"]].location != NSNotFound)) {
+                                            valid = NO;
+                                            break;
+                                        }
+                                    }
+                                    if (valid) {
+                                        for (ASIPithosSharingUser *translatedsSharingUser in translatedPermissions) {
+                                            if (translatedsSharingUser.name.length) {
+                                                ASIPithosSharingUser *sharingUser = [translatedsSharingUser copy];
+                                                if (!sharingUser.permission) {
+                                                    sharingUser.permission = @"read";
+                                                }
+                                                [permissions addObject:sharingUser];
+                                            }
+                                        }
+                                    } else {
+                                        NSAlert *alert = [[NSAlert alloc] init];
+                                        [alert setMessageText:@"Invalid Input"];
+                                        [alert setInformativeText:@"Users cannot contain ' ', '~', ',', ';' or ':'."];
+                                        [alert addButtonWithTitle:@"OK"];
+                                        [alert runModal];
+                                        return;
+                                    }
+                                }
+                            } else {
+                                for (ASIPithosSharingUser *translatedsSharingUser in translatedPermissions) {
+                                    if ([translatedsSharingUser.name isEqualToString:@"*"]) {
+                                        ASIPithosSharingUser *sharingUser = [translatedsSharingUser copy];
+                                        if (!sharingUser.permission) {
+                                            sharingUser.permission = @"read";
+                                        }
+                                        [permissions addObject:sharingUser];
+                                    }
+                                }
+                            }
+                        } else {
+                            for (ASIPithosSharingUser *translatedsSharingUser in translatedPermissions) {
+                                if (translatedsSharingUser.name.length) {
+                                    ASIPithosSharingUser *sharingUser = [translatedsSharingUser copy];
+                                    if (!sharingUser.permission) {
+                                        sharingUser.permission = @"read";
+                                    }
+                                    [permissions addObject:sharingUser];
+                                }
+                            }
+                        }
+                    }
+                    pithosObject.permissions = permissions;
+
+                    self.applyMetadataObjectRequest = [ASIPithosObjectRequest updateObjectMetadataRequestWithPithos:pithos
+                                                                                                      containerName:pithosContainer.name
+                                                                                                         objectName:pithosObject.name
+                                                                                                    contentEncoding:pithosObject.contentEncoding
+                                                                                                 contentDisposition:pithosObject.contentDisposition
+                                                                                                           manifest:pithosObject.manifest
+                                                                                                            sharing:(pithosObject.sharing ? pithosObject.sharing : @"")
+                                                                                                           isPublic:(isPublic ? ASIPithosObjectRequestPublicTrue : ASIPithosObjectRequestPublicFalse)
+                                                                                                           metadata:pithosObject.metadata
+                                                                                                             update:NO];
                 }
                 applyMetadataObjectRequest.delegate = self;
                 applyMetadataObjectRequest.didFinishSelector = @selector(performRequestFinishedDelegateInBackground:);
@@ -385,9 +643,9 @@ static NSImage *sharedIcon = nil;
             self.pithosObject = [ASIPithosObject subdirWithName:pithosObject.name];
             return;
         } else if (refreshMetadataObjectRequest == nil) {
-            refreshMetadataObjectRequest = [[ASIPithosObjectRequest objectMetadataRequestWithPithos:pithos 
-                                                                                      containerName:pithosContainer.name 
-                                                                                         objectName:prefix] retain];
+            self.refreshMetadataObjectRequest = [ASIPithosObjectRequest objectMetadataRequestWithPithos:pithos
+                                                                                          containerName:pithosContainer.name
+                                                                                             objectName:prefix];
             if (sharingAccount)
                 [refreshMetadataObjectRequest setRequestUserFromDefaultTo:sharingAccount withPithos:pithos];
             refreshMetadataObjectRequest.delegate = self;
@@ -415,9 +673,9 @@ static NSImage *sharedIcon = nil;
         if (pithosObject.subdir) {
             return;
         } else if (refreshVersionsObjectRequest == nil) {
-            refreshVersionsObjectRequest = [[ASIPithosObjectRequest objectVersionsRequestWithPithos:pithos 
-                                                                                      containerName:pithosContainer.name 
-                                                                                         objectName:pithosObject.name] retain];
+            self.refreshVersionsObjectRequest = [ASIPithosObjectRequest objectVersionsRequestWithPithos:pithos
+                                                                                          containerName:pithosContainer.name
+                                                                                             objectName:pithosObject.name];
             if (sharingAccount)
                 [refreshVersionsObjectRequest setRequestUserFromDefaultTo:sharingAccount withPithos:pithos];
             refreshVersionsObjectRequest.delegate = self;