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单军华

2018-07-31 21d3023a9b7b6aff68c1170e345951396b1c6cfd

 screendisplay/Pods/ASIHTTPRequest/Classes/S3/ASIS3ObjectRequest.m

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//
//  ASIS3ObjectRequest.m
//  Part of ASIHTTPRequest -> http://allseeing-i.com/ASIHTTPRequest
//
//  Created by Ben Copsey on 16/03/2010.
//  Copyright 2010 All-Seeing Interactive. All rights reserved.
//

#import "ASIS3ObjectRequest.h"

NSString *const ASIS3StorageClassStandard = @"STANDARD";
NSString *const ASIS3StorageClassReducedRedundancy = @"REDUCED_REDUNDANCY";

@implementation ASIS3ObjectRequest

- (ASIHTTPRequest *)HEADRequest
{
   ASIS3ObjectRequest *headRequest = (ASIS3ObjectRequest *)[super HEADRequest];
   [headRequest setKey:[self key]];
   [headRequest setBucket:[self bucket]];
   return headRequest;
}

+ (id)requestWithBucket:(NSString *)theBucket key:(NSString *)theKey
{
   ASIS3ObjectRequest *newRequest = [[[self alloc] initWithURL:nil] autorelease];
   [newRequest setBucket:theBucket];
   [newRequest setKey:theKey];
   return newRequest;
}

+ (id)requestWithBucket:(NSString *)theBucket key:(NSString *)theKey subResource:(NSString *)theSubResource
{
   ASIS3ObjectRequest *newRequest = [[[self alloc] initWithURL:nil] autorelease];
   [newRequest setSubResource:theSubResource];
   [newRequest setBucket:theBucket];
   [newRequest setKey:theKey];
   return newRequest;
}

+ (id)PUTRequestForData:(NSData *)data withBucket:(NSString *)theBucket key:(NSString *)theKey
{
   ASIS3ObjectRequest *newRequest = [self requestWithBucket:theBucket key:theKey];
   [newRequest appendPostData:data];
   [newRequest setRequestMethod:@"PUT"];
   return newRequest;
}

+ (id)PUTRequestForFile:(NSString *)filePath withBucket:(NSString *)theBucket key:(NSString *)theKey
{
   ASIS3ObjectRequest *newRequest = [self requestWithBucket:theBucket key:theKey];
   [newRequest setPostBodyFilePath:filePath];
   [newRequest setShouldStreamPostDataFromDisk:YES];
   [newRequest setRequestMethod:@"PUT"];
   [newRequest setMimeType:[ASIHTTPRequest mimeTypeForFileAtPath:filePath]];
   return newRequest;
}

+ (id)DELETERequestWithBucket:(NSString *)theBucket key:(NSString *)theKey
{
   ASIS3ObjectRequest *newRequest = [self requestWithBucket:theBucket key:theKey];
   [newRequest setRequestMethod:@"DELETE"];
   return newRequest;
}

+ (id)COPYRequestFromBucket:(NSString *)theSourceBucket key:(NSString *)theSourceKey toBucket:(NSString *)theBucket key:(NSString *)theKey
{
   ASIS3ObjectRequest *newRequest = [self requestWithBucket:theBucket key:theKey];
   [newRequest setRequestMethod:@"PUT"];
   [newRequest setSourceBucket:theSourceBucket];
   [newRequest setSourceKey:theSourceKey];
   return newRequest;
}

+ (id)HEADRequestWithBucket:(NSString *)theBucket key:(NSString *)theKey
{
   ASIS3ObjectRequest *newRequest = [self requestWithBucket:theBucket key:theKey];
   [newRequest setRequestMethod:@"HEAD"];
   return newRequest;
}

- (id)copyWithZone:(NSZone *)zone
{
   ASIS3ObjectRequest *newRequest = [super copyWithZone:zone];
   [newRequest setBucket:[self bucket]];
   [newRequest setKey:[self key]];
   [newRequest setSourceBucket:[self sourceBucket]];
   [newRequest setSourceKey:[self sourceKey]];
   [newRequest setMimeType:[self mimeType]];
   [newRequest setSubResource:[self subResource]];
   [newRequest setStorageClass:[self storageClass]];
   return newRequest;
}

- (void)dealloc
{
   [bucket release];
   [key release];
   [mimeType release];
   [sourceKey release];
   [sourceBucket release];
   [subResource release];
   [storageClass release];
   [super dealloc];
}

- (void)buildURL
{
   if ([self subResource]) {
      [self setURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@://%@.%@%@?%@",[self requestScheme],[self bucket],[[self class] S3Host],[ASIS3Request stringByURLEncodingForS3Path:[self key]],[self subResource]]]];
   } else {
      [self setURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@://%@.%@%@",[self requestScheme],[self bucket],[[self class] S3Host],[ASIS3Request stringByURLEncodingForS3Path:[self key]]]]];
   }
}

- (NSString *)mimeType
{
   if (mimeType) {
      return mimeType;
   } else if ([self postBodyFilePath]) {
      return [ASIHTTPRequest mimeTypeForFileAtPath:[self postBodyFilePath]];
   } else {
      return @"application/octet-stream";
   }
}

- (NSString *)canonicalizedResource
{
   if ([[self subResource] length] > 0) {
      return [NSString stringWithFormat:@"/%@%@?%@",[self bucket],[ASIS3Request stringByURLEncodingForS3Path:[self key]], [self subResource]];
   }
   return [NSString stringWithFormat:@"/%@%@",[self bucket],[ASIS3Request stringByURLEncodingForS3Path:[self key]]];
}

- (NSMutableDictionary *)S3Headers
{
   NSMutableDictionary *headers = [super S3Headers];
   if ([self sourceKey]) {
      NSString *path = [ASIS3Request stringByURLEncodingForS3Path:[self sourceKey]];
      [headers setObject:[[self sourceBucket] stringByAppendingString:path] forKey:@"x-amz-copy-source"];
   }
   if ([self storageClass]) {
      [headers setObject:[self storageClass] forKey:@"x-amz-storage-class"];
   }
   return headers;
}

- (NSString *)stringToSignForHeaders:(NSString *)canonicalizedAmzHeaders resource:(NSString *)canonicalizedResource
{
   if ([[self requestMethod] isEqualToString:@"PUT"] && ![self sourceKey]) {
      [self addRequestHeader:@"Content-Type" value:[self mimeType]];
      return [NSString stringWithFormat:@"PUT\n\n%@\n%@\n%@%@",[self mimeType],dateString,canonicalizedAmzHeaders,canonicalizedResource];
   } 
   return [super stringToSignForHeaders:canonicalizedAmzHeaders resource:canonicalizedResource];
}

@synthesize bucket;
@synthesize key;
@synthesize sourceBucket;
@synthesize sourceKey;
@synthesize mimeType;
@synthesize subResource;
@synthesize storageClass;
@end