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//
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//  PithosSubdirNode.m
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//  pithos-macos
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//
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// Copyright 2011-2012 GRNET S.A. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or
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// without modification, are permitted provided that the following
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// conditions are met:
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// 
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//   1. Redistributions of source code must retain the above
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//      copyright notice, this list of conditions and the following
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//      disclaimer.
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// 
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//   2. Redistributions in binary form must reproduce the above
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//      copyright notice, this list of conditions and the following
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//      disclaimer in the documentation and/or other materials
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//      provided with the distribution.
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// 
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// THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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// OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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// USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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// 
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// The views and conclusions contained in the software and
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// documentation are those of the authors and should not be
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// interpreted as representing official policies, either expressed
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// or implied, of GRNET S.A.
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#import "PithosSubdirNode.h"
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#import "ASIPithosRequest.h"
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#import "ASIPithos.h"
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#import "ASIPithosObjectRequest.h"
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#import "ASIPithosContainer.h"
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#import "ASIPithosObject.h"
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#import "ASINetworkQueue.h"
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#import "ASIDownloadCache.h"
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#import "PithosUtilities.h"
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#import "PithosObjectNodeInfoController.h"
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static NSImage *sharedIcon = nil;
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@implementation PithosSubdirNode
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@synthesize pithosObject, versions;
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@synthesize isPublic;
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+ (void)initialize {
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	if (self == [PithosSubdirNode class])
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        sharedIcon = [[[NSWorkspace sharedWorkspace] iconForFileType:NSFileTypeForHFSTypeCode(kGenericFolderIcon)] retain];
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}
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#pragma mark -
61
#pragma mark Object Lifecycle
62

    
63
- (id)initWithPithos:(ASIPithos *)aPithos 
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     pithosContainer:(ASIPithosContainer *)aPithosContainer 
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        pithosObject:(ASIPithosObject *)aPithosObject {
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    if ((self = [super init])) {
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        self.pithos = aPithos;
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        self.pithosContainer = aPithosContainer;
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        self.pithosObject = aPithosObject;
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        refreshParent = NO;
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    }
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    return self;
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}
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75
- (void)dealloc {
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    [refreshVersionsObjectRequest clearDelegatesAndCancel];
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    [refreshVersionsObjectRequest release];
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    [refreshMetadataObjectRequest clearDelegatesAndCancel];
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    [refreshMetadataObjectRequest release];
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    [applyMetadataObjectRequest clearDelegatesAndCancel];
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    [applyMetadataObjectRequest release];
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    [versions release];
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    [pithosObject release];
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    [super dealloc];
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}
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#pragma mark -
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#pragma mark Properties
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90
- (void)setPithos:(ASIPithos *)aPithos {
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    if (aPithos && ![aPithos isEqualTo:pithos]) {
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        [pithos release];
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        pithos = [aPithos retain];
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        [url release];
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        url = nil;
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    }
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}
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- (NSString *)url {
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    if (url == nil)
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        url = [[NSString alloc] initWithFormat:@"subdir %@/%@/%@%@", 
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               (sharingAccount ? [pithos storageURLWithAuthUser:sharingAccount] : pithos.storageURL), 
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               pithosContainer.name, 
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               prefix, 
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               (shared ? @"?shared" : @"")];
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    return url;
107
}
108

    
109
- (NSString *)displayName {
110
    if (displayName == nil) {
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        displayName = [pithosObject.name lastPathComponent];
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        if (!pithosObject.subdir && [pithosObject.name hasSuffix:@"/"])
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            displayName = [displayName stringByAppendingString:@"/"];
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        [displayName retain];
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    } 
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    return [[displayName copy] autorelease];
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}
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119
- (void)setDisplayName:(NSString *)aDisplayName {    
120
}
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122
- (NSImage *)icon {
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    if (icon == nil)
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        icon = [sharedIcon retain];
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    return icon;
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}
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128
- (void)setPithosObject:(ASIPithosObject *)aPithosObject {
129
    if (![pithosObject isEqualTo:aPithosObject]) {
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        [pithosObject release];
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        pithosObject = [aPithosObject retain];
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    }
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    if (pithosObject.subdir) {
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        self.prefix = [pithosObject.name substringToIndex:([pithosObject.name length] - 1)];
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    } else {
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        self.prefix = [NSString stringWithString:pithosObject.name];
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    }
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    self.isPublic = (pithosObject.publicURI != nil);
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    // Refresh browser if the object is in my shared and is no longer shared
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    if (shared && !pithosObject.subdir && !pithosObject.sharing) {
141
        [[NSNotificationCenter defaultCenter] postNotificationName:@"PithosBrowserRefreshNeeeded" object:self];
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    }
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}
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145
- (void)setLimitedPithosObject:(ASIPithosObject *)aPithosObject {
146
    if (![pithosObject isEqualTo:aPithosObject]) {
147
        self.pithosObject.subdir = aPithosObject.subdir;
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        self.pithosObject.name = aPithosObject.name;
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        self.pithosObject.hash = aPithosObject.hash;
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        self.pithosObject.objectHash = aPithosObject.objectHash;
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        self.pithosObject.UUID = aPithosObject.UUID;
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        self.pithosObject.bytes = aPithosObject.bytes;
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        self.pithosObject.contentType = aPithosObject.contentType;
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        self.pithosObject.lastModified = aPithosObject.lastModified;
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        self.pithosObject.version = aPithosObject.version;
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        self.pithosObject.versionTimestamp = aPithosObject.versionTimestamp;
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        self.pithosObject.modifiedBy = aPithosObject.modifiedBy;
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        self.pithosObject.sharedBy = aPithosObject.sharedBy;
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        self.pithosObject.allowedTo = aPithosObject.allowedTo;
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        if (!pithosNodeInfoController) {
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            self.pithosObject.sharing = aPithosObject.sharing;
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            self.pithosObject.publicURI = aPithosObject.publicURI;
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            self.pithosObject = pithosObject;
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        }
165
    }
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}
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#pragma mark -
169
#pragma mark ASIHTTPRequestDelegate
170

    
171
- (void)objectRequestFinished:(ASIPithosObjectRequest *)request {
172
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
173
    NSLog(@"URL: %@", [request url]);
174
    NSLog(@"cached: %d", [request didUseCachedResponse]);
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176
    if ([request isEqualTo:applyMetadataObjectRequest]) {
177
        int responseStatusCode = applyMetadataObjectRequest.responseStatusCode;
178
        if ((responseStatusCode != 201) && (responseStatusCode != 202))
179
            [PithosUtilities unexpectedResponseStatusAlertWithRequest:applyMetadataObjectRequest];
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        @synchronized(self) {
181
            [applyMetadataObjectRequest release];
182
            applyMetadataObjectRequest = nil;
183
        }
184
        if ((responseStatusCode == 201) || (responseStatusCode == 202))
185
            [self refreshInfo];
186
    } else if ([request isEqualTo:refreshMetadataObjectRequest]) {
187
        [[pithosNodeInfoController window] makeFirstResponder:nil];
188
        self.pithosObject = [refreshMetadataObjectRequest object];
189
        if (refreshParent) {
190
            // Ask the parent for refresh for the case where an object was removed
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            // It is done here so that it doesn't affect the info window refresh
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            [parent refresh];
193
            refreshParent = NO;
194
        }
195
        @synchronized(self) {
196
            [refreshMetadataObjectRequest release];
197
            refreshMetadataObjectRequest = nil;
198
        }
199
    } else if ([request isEqualTo:refreshVersionsObjectRequest]) {
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        [[pithosNodeInfoController window] makeFirstResponder:nil];
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        self.versions = [refreshVersionsObjectRequest versions];
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        @synchronized(self) {
203
            [refreshVersionsObjectRequest release];
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            refreshVersionsObjectRequest = nil;
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        }
206
    }
207
    [pool drain];
208
}
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210
- (void)objectRequestFailed:(ASIPithosObjectRequest *)request {
211
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
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    NSUInteger retries = [[request.userInfo objectForKey:@"retries"] unsignedIntegerValue];
213
    if (retries > 0) {
214
        ASIPithosObjectRequest *newRequest = (ASIPithosObjectRequest *)[[PithosUtilities copyRequest:request] autorelease];
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        [(NSMutableDictionary *)(newRequest.userInfo)setObject:[NSNumber numberWithUnsignedInteger:(--retries)] forKey:@"retries"];
216
        if ([request isEqualTo:applyMetadataObjectRequest]) {
217
            @synchronized(self) {
218
                [applyMetadataObjectRequest release];
219
                applyMetadataObjectRequest = newRequest;
220
            }
221
        } else if ([request isEqualTo:refreshMetadataObjectRequest]) {
222
            @synchronized(self) {
223
                [refreshMetadataObjectRequest release];
224
                refreshMetadataObjectRequest = newRequest;
225
            }
226
        } else if ([request isEqualTo:refreshVersionsObjectRequest]) {
227
            @synchronized(self) {
228
                [refreshVersionsObjectRequest release];
229
                refreshVersionsObjectRequest = newRequest;
230
            }
231
        }
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        [[PithosUtilities prepareRequest:newRequest priority:[[newRequest.userInfo objectForKey:@"priority"] integerValue]] startAsynchronous];
233
    } else {
234
        if ([request isEqualTo:applyMetadataObjectRequest]) {
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            dispatch_async(dispatch_get_main_queue(), ^{
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                [PithosUtilities httpRequestErrorAlertWithRequest:applyMetadataObjectRequest];
237
            });
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            @synchronized(self) {
239
                [applyMetadataObjectRequest release];
240
                applyMetadataObjectRequest = nil;
241
            }
242
        } else if ([request isEqualTo:refreshMetadataObjectRequest]) {
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            dispatch_async(dispatch_get_main_queue(), ^{
244
                [PithosUtilities httpRequestErrorAlertWithRequest:refreshMetadataObjectRequest];
245
            });
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            @synchronized(self) {
247
                [refreshMetadataObjectRequest release];
248
                refreshMetadataObjectRequest = nil;
249
            }
250
        } else if ([request isEqualTo:refreshVersionsObjectRequest]) {
251
            dispatch_async(dispatch_get_main_queue(), ^{
252
                [PithosUtilities httpRequestErrorAlertWithRequest:refreshVersionsObjectRequest];
253
            });
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            @synchronized(self) {
255
                [refreshVersionsObjectRequest release];
256
                refreshVersionsObjectRequest = nil;
257
            }
258
        }
259
    }
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    [pool drain];
261
}
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263
#pragma mark -
264
#pragma mark Info
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266
- (void)applyInfo {
267
    @synchronized(self) {
268
        if (applyMetadataObjectRequest == nil) {
269
            if (pithosObject.subdir) {
270
                BOOL createObject = NO;
271
                NSAlert *alert;
272
                ASIPithosObjectRequest *request = [ASIPithosObjectRequest objectMetadataRequestWithPithos:pithos 
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                                                                                            containerName:pithosContainer.name 
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                                                                                               objectName:prefix];
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                ASINetworkQueue *networkQueue = [ASINetworkQueue queue];
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                [networkQueue go];
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                [networkQueue addOperations:[NSArray arrayWithObject:[PithosUtilities prepareRequest:request]] waitUntilFinished:YES];
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                if ([request error]) {
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                    alert = [[[NSAlert alloc] init] autorelease];
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                    [alert setMessageText:@"HTTP Request Error"];
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                    [alert setInformativeText:[NSString stringWithFormat:@"An error occured: %@", [request error]]];
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                    [alert addButtonWithTitle:@"OK"];
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                    [alert runModal];
284
                    return;
285
                } else if (request.responseStatusCode == 200) {
286
                    alert = [[[NSAlert alloc] init] autorelease];
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                    [alert setMessageText:@"Apply changes"];
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                    [alert setInformativeText:[NSString stringWithFormat:@"In order to apply the changes in '%@', the object at the same path must be replaced. Continue?", self.displayName]];
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                    [alert addButtonWithTitle:@"OK"];
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                    [alert addButtonWithTitle:@"Cancel"];
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                    NSInteger choice = [alert runModal];
292
                    if (choice == NSAlertFirstButtonReturn) {
293
                        request = [ASIPithosObjectRequest deleteObjectRequestWithPithos:pithos 
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                                                                          containerName:pithosContainer.name 
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                                                                             objectName:prefix];
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                        ASINetworkQueue *networkQueue = [ASINetworkQueue queue];
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                        [networkQueue go];
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                        [networkQueue addOperations:[NSArray arrayWithObject:[PithosUtilities prepareRequest:request]] waitUntilFinished:YES];
299
                        if ([request error]) {
300
                            alert = [[[NSAlert alloc] init] autorelease];
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                            [alert setMessageText:@"HTTP Request Error"];
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                            [alert setInformativeText:[NSString stringWithFormat:@"An error occured: %@", [request error]]];
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                            [alert addButtonWithTitle:@"OK"];
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                            [alert runModal];
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                            return;
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                        } else if (request.responseStatusCode != 204) {
307
                            [PithosUtilities unexpectedResponseStatusAlertWithRequest:request];
308
                            return;
309
                        }
310
                        refreshParent = YES;
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                        createObject = YES;
312
                    } else {
313
                        return;
314
                    }
315
                } else if (request.responseStatusCode == 404) {
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                    createObject = YES;
317
                } else {
318
                    [PithosUtilities unexpectedResponseStatusAlertWithRequest:request];
319
                    return;
320
                }
321
                if (createObject) {
322
                    [[pithosNodeInfoController window] makeFirstResponder:nil];
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                    applyMetadataObjectRequest = [[ASIPithosObjectRequest writeObjectDataRequestWithPithos:pithos 
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                                                                                             containerName:pithosContainer.name 
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                                                                                                objectName:prefix 
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                                                                                                      eTag:nil
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                                                                                               contentType:@"application/directory"
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                                                                                           contentEncoding:pithosObject.contentEncoding 
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                                                                                        contentDisposition:pithosObject.contentDisposition 
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                                                                                                  manifest:pithosObject.manifest 
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                                                                                                   sharing:pithosObject.sharing 
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                                                                                                  isPublic:(isPublic ? ASIPithosObjectRequestPublicTrue : ASIPithosObjectRequestPublicFalse) 
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                                                                                                  metadata:pithosObject.metadata 
334
                                                                                                      data:[NSData data]] retain];
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                    pithosObject.subdir = NO;
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                    applyMetadataObjectRequest.delegate = self;
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                    applyMetadataObjectRequest.didFinishSelector = @selector(performRequestFinishedDelegateInBackground:);
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                    applyMetadataObjectRequest.didFailSelector = @selector(performRequestFailedDelegateInBackground:);
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                    applyMetadataObjectRequest.userInfo = [NSMutableDictionary dictionaryWithObjectsAndKeys:
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                                                           [NSNumber numberWithInteger:NSOperationQueuePriorityHigh], @"priority", 
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                                                           [NSNumber numberWithUnsignedInteger:10], @"retries", 
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                                                           NSStringFromSelector(@selector(objectRequestFinished:)), @"didFinishSelector", 
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                                                           NSStringFromSelector(@selector(objectRequestFailed:)), @"didFailSelector", 
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                                                           nil];
345
                    [[PithosUtilities prepareRequest:applyMetadataObjectRequest priority:NSOperationQueuePriorityHigh] startAsynchronous];
346
                }
347
            } else {
348
                [[pithosNodeInfoController window] makeFirstResponder:nil];
349
                if (sharingAccount) {
350
                    applyMetadataObjectRequest = [[ASIPithosObjectRequest updateObjectMetadataRequestWithPithos:pithos 
351
                                                                                                  containerName:pithosContainer.name 
352
                                                                                                     objectName:pithosObject.name 
353
                                                                                                contentEncoding:nil
354
                                                                                             contentDisposition:nil
355
                                                                                                       manifest:nil 
356
                                                                                                        sharing:nil 
357
                                                                                                       isPublic:(isPublic ? ASIPithosObjectRequestPublicTrue : ASIPithosObjectRequestPublicFalse) 
358
                                                                                                       metadata:pithosObject.metadata
359
                                                                                                         update:NO] retain];
360
                    [applyMetadataObjectRequest setRequestUserFromDefaultTo:sharingAccount withPithos:pithos];
361
                } else {
362
                    applyMetadataObjectRequest = [[ASIPithosObjectRequest updateObjectMetadataRequestWithPithos:pithos 
363
                                                                                                  containerName:pithosContainer.name 
364
                                                                                                     objectName:pithosObject.name 
365
                                                                                                contentEncoding:pithosObject.contentEncoding
366
                                                                                             contentDisposition:pithosObject.contentDisposition 
367
                                                                                                       manifest:pithosObject.manifest 
368
                                                                                                        sharing:(pithosObject.sharing ? pithosObject.sharing : @"") 
369
                                                                                                       isPublic:(isPublic ? ASIPithosObjectRequestPublicTrue : ASIPithosObjectRequestPublicFalse) 
370
                                                                                                       metadata:pithosObject.metadata
371
                                                                                                         update:NO] retain];
372
                }
373
                applyMetadataObjectRequest.delegate = self;
374
                applyMetadataObjectRequest.didFinishSelector = @selector(performRequestFinishedDelegateInBackground:);
375
                applyMetadataObjectRequest.didFailSelector = @selector(performRequestFailedDelegateInBackground:);
376
                applyMetadataObjectRequest.userInfo = [NSMutableDictionary dictionaryWithObjectsAndKeys:
377
                                                       [NSNumber numberWithInteger:NSOperationQueuePriorityHigh], @"priority", 
378
                                                       [NSNumber numberWithUnsignedInteger:10], @"retries", 
379
                                                       NSStringFromSelector(@selector(objectRequestFinished:)), @"didFinishSelector", 
380
                                                       NSStringFromSelector(@selector(objectRequestFailed:)), @"didFailSelector", 
381
                                                       nil];
382
                [[PithosUtilities prepareRequest:applyMetadataObjectRequest priority:NSOperationQueuePriorityHigh] startAsynchronous];
383
            }
384
        }
385
    }
386
}
387

    
388
- (void)refreshInfo {
389
    @synchronized(self) {
390
        if (pithosObject.subdir) {
391
            self.pithosObject = [ASIPithosObject subdirWithName:pithosObject.name];
392
            return;
393
        } else if (refreshMetadataObjectRequest == nil) {
394
            refreshMetadataObjectRequest = [[ASIPithosObjectRequest objectMetadataRequestWithPithos:pithos 
395
                                                                                      containerName:pithosContainer.name 
396
                                                                                         objectName:prefix] retain];
397
            if (sharingAccount)
398
                [refreshMetadataObjectRequest setRequestUserFromDefaultTo:sharingAccount withPithos:pithos];
399
            refreshMetadataObjectRequest.delegate = self;
400
            refreshMetadataObjectRequest.didFinishSelector = @selector(performRequestFinishedDelegateInBackground:);
401
            refreshMetadataObjectRequest.didFailSelector = @selector(performRequestFailedDelegateInBackground:);
402
            refreshMetadataObjectRequest.userInfo = [NSMutableDictionary dictionaryWithObjectsAndKeys:
403
                                                     [NSNumber numberWithInteger:NSOperationQueuePriorityHigh], @"priority", 
404
                                                     [NSNumber numberWithUnsignedInteger:10], @"retries", 
405
                                                     NSStringFromSelector(@selector(objectRequestFinished:)), @"didFinishSelector", 
406
                                                     NSStringFromSelector(@selector(objectRequestFailed:)), @"didFailSelector", 
407
                                                     nil];
408
            refreshMetadataObjectRequest.downloadCache = [ASIDownloadCache sharedCache];
409
            [[PithosUtilities prepareRequest:refreshMetadataObjectRequest priority:NSOperationQueuePriorityHigh] startAsynchronous];
410
        }
411
    }
412
    [self refreshVersions];
413
}
414

    
415
#pragma mark -
416
#pragma mark Versions
417

    
418
- (void)refreshVersions {
419
    @synchronized(self) {
420
        if (pithosObject.subdir) {
421
            return;
422
        } else if (refreshVersionsObjectRequest == nil) {
423
            refreshVersionsObjectRequest = [[ASIPithosObjectRequest objectVersionsRequestWithPithos:pithos 
424
                                                                                      containerName:pithosContainer.name 
425
                                                                                         objectName:pithosObject.name] retain];
426
            if (sharingAccount)
427
                [refreshVersionsObjectRequest setRequestUserFromDefaultTo:sharingAccount withPithos:pithos];
428
            refreshVersionsObjectRequest.delegate = self;
429
            refreshVersionsObjectRequest.didFinishSelector = @selector(performRequestFinishedDelegateInBackground:);
430
            refreshVersionsObjectRequest.didFailSelector = @selector(performRequestFailedDelegateInBackground:);
431
            refreshVersionsObjectRequest.userInfo = [NSMutableDictionary dictionaryWithObjectsAndKeys:
432
                                                     [NSNumber numberWithInteger:NSOperationQueuePriorityHigh], @"priority", 
433
                                                     [NSNumber numberWithUnsignedInteger:10], @"retries", 
434
                                                     NSStringFromSelector(@selector(objectRequestFinished:)), @"didFinishSelector", 
435
                                                     NSStringFromSelector(@selector(objectRequestFailed:)), @"didFailSelector", 
436
                                                     nil];
437
            refreshVersionsObjectRequest.downloadCache = [ASIDownloadCache sharedCache];
438
            [[PithosUtilities prepareRequest:refreshVersionsObjectRequest priority:NSOperationQueuePriorityHigh] startAsynchronous];
439
        }
440
    }
441
}
442

    
443
#pragma mark -
444
#pragma mark Actions
445

    
446
- (void)showPithosNodeInfo:(id)sender {
447
    if (!pithosNodeInfoController) {
448
        pithosNodeInfoController = [[PithosObjectNodeInfoController alloc] initWithPithosNode:self];
449
        [self refreshInfo];
450
    }
451
    [pithosNodeInfoController showWindow:sender];
452
    [[pithosNodeInfoController window] makeKeyAndOrderFront:sender];
453
    [NSApp activateIgnoringOtherApps:YES];
454
}
455

    
456
@end