code.grnet.gr Git - pithos-macos/blob - pithos-macos/PithosSubdirNode.m

   1 //
   2 //  PithosSubdirNode.m
   3 //  pithos-macos
   4 //
   5 // Copyright 2011 GRNET S.A. All rights reserved.
   6 //
   7 // Redistribution and use in source and binary forms, with or
   8 // without modification, are permitted provided that the following
   9 // conditions are met:
  10 //
  11 //   1. Redistributions of source code must retain the above
  12 //      copyright notice, this list of conditions and the following
  13 //      disclaimer.
  14 //
  15 //   2. Redistributions in binary form must reproduce the above
  16 //      copyright notice, this list of conditions and the following
  17 //      disclaimer in the documentation and/or other materials
  18 //      provided with the distribution.
  19 //
  20 // THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  21 // OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  22 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  24 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  27 // USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  28 // AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29 // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  30 // ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31 // POSSIBILITY OF SUCH DAMAGE.
  32 //
  33 // The views and conclusions contained in the software and
  34 // documentation are those of the authors and should not be
  35 // interpreted as representing official policies, either expressed
  36 // or implied, of GRNET S.A.
  37
  38 #import "PithosSubdirNode.h"
  39 #import "ASIPithosRequest.h"
  40 #import "ASIPithosObjectRequest.h"
  41 #import "ASIPithosContainer.h"
  42 #import "ASIPithosObject.h"
  43 #import "ASIDownloadCache.h"
  44 #import "PithosFileUtilities.h"
  45
  46 static NSImage *sharedIcon = nil;
  47
  48 @implementation PithosSubdirNode
  49 @synthesize pithosObject;
  50 @synthesize isPublic;
  51
  52 + (void)initialize {
  53         if (self == [PithosSubdirNode class])
  54         sharedIcon = [[[NSWorkspace sharedWorkspace] iconForFileType:NSFileTypeForHFSTypeCode(kGenericFolderIcon)] retain];
  55 }
  56
  57 #pragma mark -
  58 #pragma mark Object Lifecycle
  59
  60 - (id)initWithPithosContainer:(ASIPithosContainer *)aPithosContainer pithosObject:(ASIPithosObject *)aPithosObject {
  61     if ((self = [super init])) {
  62         self.pithosContainer = aPithosContainer;
  63         self.pithosObject = aPithosObject;
  64         childrenUpdatedNotificationName = @"PithosSubdirNodeChildrenUpdated";
  65         refreshParent = NO;
  66     }
  67     return self;
  68 }
  69
  70 - (void)dealloc {
  71     [refreshMetadataObjectRequest clearDelegatesAndCancel];
  72     [refreshMetadataObjectRequest release];
  73     [applyMetadataObjectRequest clearDelegatesAndCancel];
  74     [applyMetadataObjectRequest release];
  75     [pithosObject release];
  76     [super dealloc];
  77 }
  78
  79 #pragma mark -
  80 #pragma mark Properties
  81
  82 - (NSString *)url {
  83     if (url == nil)
  84         url = [[NSString alloc] initWithFormat:@"subdir %@/%@/%@", [ASIPithosRequest storageURL], pithosContainer.name, prefix];
  85     return url;
  86 }
  87
  88 - (NSString *)displayName {
  89     NSString *name = [pithosObject.name lastPathComponent];
  90     if (!pithosObject.subdir && [pithosObject.name hasSuffix:@"/"]) {
  91         return [name stringByAppendingString:@"/"];
  92     }
  93     return name;
  94 }
  95
  96 - (NSImage *)icon {
  97     if (icon)
  98         return icon;
  99     return sharedIcon;
 100 }
 101
 102 - (void)setPithosObject:(ASIPithosObject *)aPithosObject {
 103     if (![pithosObject isEqualTo:aPithosObject]) {
 104         [pithosObject release];
 105         pithosObject = [aPithosObject retain];
 106     }
 107     if (pithosObject.subdir) {
 108         self.prefix = [pithosObject.name substringToIndex:([pithosObject.name length] - 1)];
 109     } else {
 110         self.prefix = [NSString stringWithString:pithosObject.name];
 111     }
 112     self.isPublic = (pithosObject.publicURI != nil);
 113 }
 114
 115 #pragma mark -
 116 #pragma mark Info
 117
 118 - (void)applyInfo {
 119     @synchronized(self) {
 120         if (applyMetadataObjectRequest == nil) {
 121             if (pithosObject.subdir) {
 122                 BOOL createObject = NO;
 123                 NSAlert *alert;
 124                 ASIPithosObjectRequest *request = [ASIPithosObjectRequest objectMetadataRequestWithContainerName:pithosContainer.name
 125                                                                                                       objectName:prefix];
 126                 [request startSynchronous];
 127                 if ([request error]) {
 128                     alert = [[[NSAlert alloc] init] autorelease];
 129                     [alert setMessageText:@"HTTP Request Error"];
 130                     [alert setInformativeText:[NSString stringWithFormat:@"An error occured: %@", [request error]]];
 131                     [alert addButtonWithTitle:@"OK"];
 132                     [alert runModal];
 133                     return;
 134                 } else if (request.responseStatusCode == 200) {
 135                     alert = [[[NSAlert alloc] init] autorelease];
 136                     [alert setMessageText:@"Apply changes"];
 137                     [alert setInformativeText:[NSString stringWithFormat:@"In order to apply the changes in '%@', the object at the same path must be replaced. Continue?", self.displayName]];
 138                     [alert addButtonWithTitle:@"OK"];
 139                     [alert addButtonWithTitle:@"Cancel"];
 140                     NSInteger choice = [alert runModal];
 141                     if (choice == NSAlertFirstButtonReturn) {
 142                         request = [ASIPithosObjectRequest deleteObjectRequestWithContainerName:pithosContainer.name
 143                                                                                        objectName:prefix];
 144                         [request startSynchronous];
 145                         if ([request error]) {
 146                             alert = [[[NSAlert alloc] init] autorelease];
 147                             [alert setMessageText:@"HTTP Request Error"];
 148                             [alert setInformativeText:[NSString stringWithFormat:@"An error occured: %@", [request error]]];
 149                             [alert addButtonWithTitle:@"OK"];
 150                             [alert runModal];
 151                             return;
 152                         } else if (request.responseStatusCode != 204) {
 153                             [PithosFileUtilities unexpectedResponseStatusAlertWithRequest:request];
 154                             return;
 155                         }
 156                         refreshParent = YES;
 157                         createObject = YES;
 158                     } else {
 159                         return;
 160                     }
 161                 } else if (request.responseStatusCode == 404) {
 162                     createObject = YES;
 163                 } else {
 164                     [PithosFileUtilities unexpectedResponseStatusAlertWithRequest:request];
 165                     return;
 166                 }
 167                 if (createObject) {
 168                     applyMetadataObjectRequest = [[ASIPithosObjectRequest writeObjectDataRequestWithContainerName:pithosContainer.name
 169                                                                                                        objectName:prefix
 170                                                                                                              eTag:nil
 171                                                                                                       contentType:@"application/directory"
 172                                                                                                   contentEncoding:nil
 173                                                                                                contentDisposition:nil
 174                                                                                                          manifest:nil
 175                                                                                                           sharing:pithosObject.sharing
 176                                                                                                          isPublic:(isPublic ? ASIPithosObjectRequestPublicTrue : ASIPithosObjectRequestPublicFalse)
 177                                                                                                          metadata:pithosObject.metadata
 178                                                                                                              data:[NSData data]] retain];
 179                     pithosObject.subdir = NO;
 180                     applyMetadataObjectRequest.delegate = self;
 181                     applyMetadataObjectRequest.didFinishSelector = @selector(objectRequestFinished:);
 182                     applyMetadataObjectRequest.didFailSelector = @selector(objectRequestFailed:);
 183                     [applyMetadataObjectRequest startAsynchronous];
 184                 }
 185             } else {
 186                 applyMetadataObjectRequest = [[ASIPithosObjectRequest updateObjectMetadataRequestWithContainerName:pithosContainer.name
 187                                                                                                         objectName:pithosObject.name
 188                                                                                                    contentEncoding:nil
 189                                                                                                 contentDisposition:nil
 190                                                                                                           manifest:nil
 191                                                                                                            sharing:pithosObject.sharing
 192                                                                                                           isPublic:(isPublic ? ASIPithosObjectRequestPublicTrue : ASIPithosObjectRequestPublicFalse)
 193                                                                                                           metadata:pithosObject.metadata
 194                                                                                                             update:NO] retain];
 195                 applyMetadataObjectRequest.delegate = self;
 196                 applyMetadataObjectRequest.didFinishSelector = @selector(objectRequestFinished:);
 197                 applyMetadataObjectRequest.didFailSelector = @selector(objectRequestFailed:);
 198                 [applyMetadataObjectRequest startAsynchronous];
 199             }
 200         }
 201     }
 202 }
 203
 204 - (void)refreshInfo {
 205     @synchronized(self) {
 206         if (pithosObject.subdir) {
 207             self.pithosObject = [ASIPithosObject subdirWithName:pithosObject.name];
 208         } else if (refreshMetadataObjectRequest == nil) {
 209             refreshMetadataObjectRequest = [[ASIPithosObjectRequest objectMetadataRequestWithContainerName:pithosContainer.name
 210                                                                                                 objectName:prefix] retain];
 211             refreshMetadataObjectRequest.delegate = self;
 212             refreshMetadataObjectRequest.didFinishSelector = @selector(objectRequestFinished:);
 213             refreshMetadataObjectRequest.didFailSelector = @selector(objectRequestFailed:);
 214             refreshMetadataObjectRequest.downloadCache = [ASIDownloadCache sharedCache];
 215             [refreshMetadataObjectRequest startAsynchronous];
 216         }
 217     }
 218 }
 219
 220 #pragma mark -
 221 #pragma mark ASIHTTPRequestDelegate
 222
 223 - (void)objectRequestFinished:(ASIPithosObjectRequest *)request {
 224     NSLog(@"URL: %@", [request url]);
 225     NSLog(@"cached: %d", [request didUseCachedResponse]);
 226
 227     if ([request isEqualTo:applyMetadataObjectRequest]) {
 228         @synchronized(self) {
 229             [applyMetadataObjectRequest release];
 230             applyMetadataObjectRequest = nil;
 231         }
 232         [self refreshInfo];
 233     } else if ([request isEqualTo:refreshMetadataObjectRequest]) {
 234         self.pithosObject = [refreshMetadataObjectRequest object];
 235         if (refreshParent) {
 236             // Ask the parent for refresh for the case where an object was removed
 237             // It is done here so that it doesn'e affect the info window refresh
 238             [parent invalidateChildren];
 239             [parent children];
 240             refreshParent = NO;
 241         }
 242         @synchronized(self) {
 243             [refreshMetadataObjectRequest release];
 244             refreshMetadataObjectRequest = nil;
 245         }
 246     }
 247 }
 248
 249 - (void)objectRequestFailed:(ASIPithosObjectRequest *)request {
 250     if ([request isEqualTo:applyMetadataObjectRequest]) {
 251         [PithosFileUtilities httpRequestErrorAlertWithRequest:applyMetadataObjectRequest];
 252         @synchronized(self) {
 253             [applyMetadataObjectRequest release];
 254             applyMetadataObjectRequest = nil;
 255         }
 256     } else if ([request isEqualTo:refreshMetadataObjectRequest]) {
 257         [PithosFileUtilities httpRequestErrorAlertWithRequest:refreshMetadataObjectRequest];
 258         @synchronized(self) {
 259             [refreshMetadataObjectRequest release];
 260             refreshMetadataObjectRequest = nil;
 261         }
 262     }
 263 }
 264
 265 @end