robin / cocoa-web-resource

A file transfer solution for iPhone and iPod Touch. Support uploading, download and delete files via browser.

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cocoa-web-resource / CocoaWebResource / HTTPResponse.m
100644 105 lines (80 sloc) 1.925 kb
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#import "HTTPResponse.h"
 
 
@implementation HTTPFileResponse
 
- (id)initWithFilePath:(NSString *)filePathParam
{
	if(self = [super init])
	{
		filePath = [filePathParam copy];
		fileHandle = [[NSFileHandle fileHandleForReadingAtPath:filePath] retain];
	}
	return self;
}
 
- (void)dealloc
{
	[filePath release];
	[fileHandle closeFile];
	[fileHandle release];
	[super dealloc];
}
 
- (UInt64)contentLength
{
	NSDictionary *fileAttributes = [[NSFileManager defaultManager] fileAttributesAtPath:filePath traverseLink:NO];
 
	NSNumber *fileSize = [fileAttributes objectForKey:NSFileSize];
 
	return (UInt64)[fileSize unsignedLongLongValue];
}
 
- (UInt64)offset
{
	return (UInt64)[fileHandle offsetInFile];
}
 
- (void)setOffset:(UInt64)offset
{
	[fileHandle seekToFileOffset:offset];
}
 
- (NSData *)readDataOfLength:(unsigned int)length
{
	return [fileHandle readDataOfLength:length];
}
 
- (NSString *)filePath
{
	return filePath;
}
 
@end
 
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#pragma mark -
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
@implementation HTTPDataResponse
 
- (id)initWithData:(NSData *)dataParam
{
	if(self = [super init])
	{
		offset = 0;
		data = [dataParam retain];
	}
	return self;
}
 
- (void)dealloc
{
	[data release];
	[super dealloc];
}
 
- (UInt64)contentLength
{
	return (UInt64)[data length];
}
 
- (UInt64)offset
{
	return offset;
}
 
- (void)setOffset:(UInt64)offsetParam
{
	offset = offsetParam;
}
 
- (NSData *)readDataOfLength:(unsigned int)lengthParameter
{
	unsigned int remaining = [data length] - offset;
	unsigned int length = lengthParameter < remaining ? lengthParameter : remaining;
 
	void *bytes = (void *)([data bytes] + offset);
 
	offset += length;
 
	return [NSData dataWithBytesNoCopy:bytes length:length freeWhenDone:NO];
}
 
@end