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
  45 static NSImage *sharedIcon = nil;
  46
  47 @implementation PithosSubdirNode
  48 @synthesize pithosObject;
  49 @synthesize isPublic;
  50
  51 + (void)initialize {
  52         if (self == [PithosSubdirNode class])
  53         sharedIcon = [[[NSWorkspace sharedWorkspace] iconForFileType:NSFileTypeForHFSTypeCode(kGenericFolderIcon)] retain];
  54 }
  55
  56 #pragma mark -
  57 #pragma mark Object Lifecycle
  58
  59 - (id)initWithPithosContainer:(ASIPithosContainer *)aPithosContainer pithosObject:(ASIPithosObject *)aPithosObject {
  60     if ((self = [super init])) {
  61         self.pithosContainer = aPithosContainer;
  62         self.pithosObject = aPithosObject;
  63         childrenUpdatedNotificationName = @"PithosSubdirNodeChildrenUpdated";
  64         refreshParent = NO;
  65     }
  66     return self;
  67 }
  68
  69 - (void)dealloc {
  70     [refreshMetadataObjectRequest clearDelegatesAndCancel];
  71     [refreshMetadataObjectRequest release];
  72     [applyMetadataObjectRequest clearDelegatesAndCancel];
  73     [applyMetadataObjectRequest release];
  74     [pithosObject release];
  75     [super dealloc];
  76 }
  77
  78 #pragma mark -
  79 #pragma mark Properties
  80
  81 - (NSString *)url {
  82     if (url == nil)
  83         url = [[NSString alloc] initWithFormat:@"subdir %@/%@/%@", [ASIPithosRequest storageURL], pithosContainer.name, prefix];
  84     return url;
  85 }
  86
  87 - (NSString *)displayName {
  88     // XXX check if there are problems with . or other special characters
  89     return [pithosObject.name lastPathComponent];
  90 }
  91
  92 - (NSImage *)icon {
  93     if (icon)
  94         return icon;
  95     return sharedIcon;
  96 }
  97
  98 - (void)setPithosObject:(ASIPithosObject *)aPithosObject {
  99     if (![pithosObject isEqualTo:aPithosObject]) {
 100         [pithosObject release];
 101         pithosObject = [aPithosObject retain];
 102     }
 103     if (pithosObject.subdir) {
 104         self.prefix = [pithosObject.name substringToIndex:([pithosObject.name length] - 1)];
 105     } else {
 106         self.prefix = [NSString stringWithString:pithosObject.name];
 107     }
 108     self.isPublic = (pithosObject.publicURI != nil);
 109 }
 110
 111 #pragma mark -
 112 #pragma mark Info
 113
 114 - (void)applyInfo {
 115     @synchronized(self) {
 116         if (applyMetadataObjectRequest == nil) {
 117             if (pithosObject.subdir) {
 118                 BOOL createObject = NO;
 119                 NSAlert *alert;
 120                 ASIPithosObjectRequest *request = [ASIPithosObjectRequest objectMetadataRequestWithContainerName:pithosContainer.name
 121                                                                                                       objectName:prefix];
 122                 [request startSynchronous];
 123                 if ([request error]) {
 124                     alert = [[[NSAlert alloc] init] autorelease];
 125                     [alert setMessageText:@"HTTP Request Error"];
 126                     [alert setInformativeText:[NSString stringWithFormat:@"An error occured: %@", [request error]]];
 127                     [alert addButtonWithTitle:@"OK"];
 128                     [alert runModal];
 129                     return;
 130                 } else if (request.responseStatusCode == 200) {
 131                     alert = [[[NSAlert alloc] init] autorelease];
 132                     [alert setMessageText:@"Apply changes"];
 133                     [alert setInformativeText:[NSString stringWithFormat:@"In order to apply the changes in '%@', the object at the same path must be replaced. Continue?", self.displayName]];
 134                     [alert addButtonWithTitle:@"OK"];
 135                     [alert addButtonWithTitle:@"Cancel"];
 136                     NSInteger choice = [alert runModal];
 137                     if (choice == NSAlertFirstButtonReturn) {
 138                         request = [ASIPithosObjectRequest deleteContainerRequestWithContainerName:pithosContainer.name
 139                                                                                        objectName:prefix];
 140                         [request startSynchronous];
 141                         if ([request error]) {
 142                             alert = [[[NSAlert alloc] init] autorelease];
 143                             [alert setMessageText:@"HTTP Request Error"];
 144                             [alert setInformativeText:[NSString stringWithFormat:@"An error occured: %@", [request error]]];
 145                             [alert addButtonWithTitle:@"OK"];
 146                             [alert runModal];
 147                             return;
 148                         } else if (request.responseStatusCode != 204) {
 149                             alert = [[[NSAlert alloc] init] autorelease];
 150                             [alert setMessageText:@"Unexpected Response Status"];
 151                             [alert setInformativeText:[NSString stringWithFormat:@"Unexpected response status %d - %@", request.responseStatusCode, request.responseStatusMessage]];
 152                             [alert addButtonWithTitle:@"OK"];
 153                             [alert runModal];
 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                     alert = [[[NSAlert alloc] init] autorelease];
 165                     [alert setMessageText:@"Unexpected Response Status"];
 166                     [alert setInformativeText:[NSString stringWithFormat:@"Unexpected response status %d - %@", request.responseStatusCode, request.responseStatusMessage]];
 167                     [alert addButtonWithTitle:@"OK"];
 168                     [alert runModal];
 169                     return;
 170                 }
 171                 if (createObject) {
 172                     applyMetadataObjectRequest = [[ASIPithosObjectRequest writeObjectDataRequestWithContainerName:pithosContainer.name
 173                                                                                                        objectName:prefix
 174                                                                                                              eTag:nil
 175                                                                                                       contentType:@"application/directory"
 176                                                                                                   contentEncoding:nil
 177                                                                                                contentDisposition:nil
 178                                                                                                          manifest:nil
 179                                                                                                           sharing:pithosObject.sharing
 180                                                                                                          isPublic:(isPublic ? ASIPithosObjectRequestPublicTrue : ASIPithosObjectRequestPublicFalse)
 181                                                                                                          metadata:pithosObject.metadata
 182                                                                                                              data:[NSData data]] retain];
 183                     pithosObject.subdir = NO;
 184                     applyMetadataObjectRequest.delegate = self;
 185                     applyMetadataObjectRequest.didFinishSelector = @selector(objectRequestFinished:);
 186                     applyMetadataObjectRequest.didFailSelector = @selector(objectRequestFailed:);
 187                     [applyMetadataObjectRequest startAsynchronous];
 188                 }
 189             } else {
 190                 applyMetadataObjectRequest = [[ASIPithosObjectRequest updateObjectMetadataRequestWithContainerName:pithosContainer.name
 191                                                                                                         objectName:pithosObject.name
 192                                                                                                    contentEncoding:nil
 193                                                                                                 contentDisposition:nil
 194                                                                                                           manifest:nil
 195                                                                                                            sharing:pithosObject.sharing
 196                                                                                                           isPublic:(isPublic ? ASIPithosObjectRequestPublicTrue : ASIPithosObjectRequestPublicFalse)
 197                                                                                                           metadata:pithosObject.metadata
 198                                                                                                             update:NO] retain];
 199                 applyMetadataObjectRequest.delegate = self;
 200                 applyMetadataObjectRequest.didFinishSelector = @selector(objectRequestFinished:);
 201                 applyMetadataObjectRequest.didFailSelector = @selector(objectRequestFailed:);
 202                 [applyMetadataObjectRequest startAsynchronous];
 203             }
 204         }
 205     }
 206 }
 207
 208 - (void)refreshInfo {
 209     @synchronized(self) {
 210         if (pithosObject.subdir) {
 211             self.pithosObject = [ASIPithosObject subdirWithName:pithosObject.name];
 212         } else if (refreshMetadataObjectRequest == nil) {
 213             refreshMetadataObjectRequest = [[ASIPithosObjectRequest objectMetadataRequestWithContainerName:pithosContainer.name
 214                                                                                                 objectName:prefix] retain];
 215             refreshMetadataObjectRequest.delegate = self;
 216             refreshMetadataObjectRequest.didFinishSelector = @selector(objectRequestFinished:);
 217             refreshMetadataObjectRequest.didFailSelector = @selector(objectRequestFailed:);
 218             refreshMetadataObjectRequest.downloadCache = [ASIDownloadCache sharedCache];
 219             [refreshMetadataObjectRequest startAsynchronous];
 220         }
 221     }
 222 }
 223
 224 #pragma mark -
 225 #pragma mark ASIHTTPRequestDelegate
 226
 227 - (void)objectRequestFinished:(ASIPithosObjectRequest *)request {
 228     NSLog(@"URL: %@", [request url]);
 229     NSLog(@"cached: %d", [request didUseCachedResponse]);
 230
 231     if ([request isEqualTo:applyMetadataObjectRequest]) {
 232         @synchronized(self) {
 233             [applyMetadataObjectRequest release];
 234             applyMetadataObjectRequest = nil;
 235         }
 236         [self refreshInfo];
 237     } else if ([request isEqualTo:refreshMetadataObjectRequest]) {
 238         self.pithosObject = [refreshMetadataObjectRequest object];
 239         if (refreshParent) {
 240             // Ask the parent for refresh for the case where an object was removed
 241             // It is done here so that it doesn'e affect the info window refresh
 242             [parent invalidateChildren];
 243             [parent children];
 244             refreshParent = NO;
 245         }
 246         @synchronized(self) {
 247             [refreshMetadataObjectRequest release];
 248             refreshMetadataObjectRequest = nil;
 249         }
 250     }
 251 }
 252
 253 - (void)objectRequestFailed:(ASIPithosObjectRequest *)request {
 254     if ([request isEqualTo:applyMetadataObjectRequest]) {
 255         // XXX do something on error, cleanup
 256         NSLog(@"error:%@", [applyMetadataObjectRequest error]);
 257         @synchronized(self) {
 258             [applyMetadataObjectRequest release];
 259             applyMetadataObjectRequest = nil;
 260         }
 261     } else if ([request isEqualTo:refreshMetadataObjectRequest]) {
 262         // XXX do something on error, cleanup
 263         NSLog(@"error:%@", [refreshMetadataObjectRequest error]);
 264         @synchronized(self) {
 265             [refreshMetadataObjectRequest release];
 266             refreshMetadataObjectRequest = nil;
 267         }
 268     }
 269 }
 270
 271 @end