iPhone开发笔记——FTP上传文件
#import
enum {
kSendBufferSize = 32768
};
@interface PutController : UIViewController
{
NSOutputStream * _networkStream;
NSInputStream * _fileStream;
uint8_t _buffer;
size_t _bufferOffset;
size_t _bufferLimit;
}
- (void)sendAction;
@end
------------------------------------------------------
#import "PutController.h"
#import "FtpUploadDemoAppDelegate.h"
#include
@interface PutController ()
// Properties that don't need to be seen by the outside world.
@property (nonatomic, readonly) BOOL isSending;
@property (nonatomic, retain) NSOutputStream *networkStream;
@property (nonatomic, retain) NSInputStream * fileStream;
@property (nonatomic, readonly) uint8_t * buffer;
@property (nonatomic, assign) size_t bufferOffset;
@property (nonatomic, assign) size_t bufferLimit;
@end
@implementation PutController
#pragma mark * Status management
// These methods are used by the core transfer code to update the UI.
- (void)_sendDidStart
{
// [ didStartNetworking];
}
- (void)_updateStatus:(NSString *)statusString
{
assert(statusString != nil);
}
- (void)_sendDidStopWithStatus:(NSString *)statusString
{
if (statusString == nil) {
statusString = @"Put succeeded";
}
//[ didStopNetworking];
}
#pragma mark * Core transfer code
// This is the code that actually does the networking.
@synthesize networkStream = _networkStream;
@synthesize fileStream = _fileStream;
@synthesize bufferOffset= _bufferOffset;
@synthesize bufferLimit = _bufferLimit;
// Because buffer is declared as an array, you have to use a custom getter.
// A synthesised getter doesn't compile.
- (uint8_t *)buffer
{
return self->_buffer;
}
- (BOOL)isSending
{
return (self.networkStream != nil);
}
- (void)_startSend:(NSString *)filePath
{
BOOL success;
NSURL * url;
CFWriteStreamRef ftpStream;
assert(filePath != nil);
assert([ fileExistsAtPath:filePath]);
//assert( || );
assert(self.networkStream == nil); // don't tap send twice in a row!
assert(self.fileStream == nil); // ditto
// First get and check the URL.
url = ;
success = (url != nil);
if (success) {
// Add the last part of the file name to the end of the URL to form the final
// URL that we're going to put to.
url = [NSMakeCollectable(
CFURLCreateCopyAppendingPathComponent(NULL, (CFURLRef) url, (CFStringRef) , false)
) autorelease];
success = (url != nil);
}
// If the URL is bogus, let the user know.Otherwise kick off the connection.
if ( ! success) {
NSLog(@"invaild URL");
} else {
// Open a stream for the file we're going to send.We do not open this stream;
// NSURLConnection will do it for us.
self.fileStream = ;
assert(self.fileStream != nil);
;
// Open a CFFTPStream for the URL.
ftpStream = CFWriteStreamCreateWithFTPURL(NULL, (CFURLRef) url);
assert(ftpStream != NULL);
self.networkStream = (NSOutputStream *) ftpStream;
success = ;
assert(success);
success = ;
assert(success);
self.networkStream.delegate = self;
forMode:NSDefaultRunLoopMode];
;
// Have to release ftpStream to balance out the create.self.networkStream
// has retained this for our persistent use.
CFRelease(ftpStream);
// Tell the UI we're sending.
;
}
}
- (void)_stopSendWithStatus:(NSString *)statusString
{
if (self.networkStream != nil) {
forMode:NSDefaultRunLoopMode];
self.networkStream.delegate = nil;
;
self.networkStream = nil;
}
if (self.fileStream != nil) {
;
self.fileStream = nil;
}
;
}
- (void)stream:(NSStream *)aStream handleEvent:(NSStreamEvent)eventCode
// An NSStream delegate callback that's called when events happen on our
// network stream.
{
NSLog(@"asd");
#pragma unused(aStream)
assert(aStream == self.networkStream);
switch (eventCode) {
case NSStreamEventOpenCompleted: {
;
} break;
case NSStreamEventHasBytesAvailable: {
assert(NO); // should never happen for the output stream
} break;
case NSStreamEventHasSpaceAvailable: {
;
// If we don't have any data buffered, go read the next chunk of data.
if (self.bufferOffset == self.bufferLimit) {
NSInteger bytesRead;
bytesRead = ;
if (bytesRead == -1) {
;
} else if (bytesRead == 0) {
;
} else {
self.bufferOffset = 0;
self.bufferLimit= bytesRead;
}
}
// If we're not out of data completely, send the next chunk.
if (self.bufferOffset != self.bufferLimit) {
NSInteger bytesWritten;
bytesWritten = maxLength:self.bufferLimit - self.bufferOffset];
assert(bytesWritten != 0);
if (bytesWritten == -1) {
;
} else {
self.bufferOffset += bytesWritten;
}
}
} break;
case NSStreamEventErrorOccurred: {
;
} break;
case NSStreamEventEndEncountered: {
// ignore
} break;
default: {
assert(NO);
} break;
}
}
#pragma mark * Actions
- (void)sendAction
{
NSLog(@"aesr");
//assert( ] );
if ( ! self.isSending ) {
NSString *filePath;
// User the tag on the UIButton to determine which image to send.
filePath = ;
filePath = ;
NSLog(@"%@",filePath);
assert(filePath != nil);
;
}
}
@end
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