Je suis en train de tester du code que j'ai trouvé sur github pour télécharger une image via ftp sur mon site web dans une application IOS. Le problème est que lorsque j'essaie de télécharger une image semi-large, l'image téléchargée semble être corrompue avec seulement la partie supérieure montrant et le reste coupé. Il semble fonctionner correctement avec des images plus petites ou une grande image avec une compression plus élevée. Est-ce que quelqu'un sait ce qui cause cela?Le téléchargement de l'image ftp fait que l'image est coupée rapidement
let ftpup = FTPUpload(baseUrl: "mysite.com", userName: "[email protected]", password: "password", directoryPath: "")
let image = UIImage(named: "medium")
let imagedata = UIImageJPEGRepresentation(image!, 1)
ftpup.send(data: imagedata!, with: "cloudpowa.jpg", success: {(success) -> Void in
if !success {
print("Failed upload!")
}
else {
print("image uploaded!")
}
})
code ftp: https://gist.github.com/Nirma/fb9991be776107d17fdcd6ed2aa02876
import Foundation
import CFNetwork
public class FTPUpload {
fileprivate let ftpBaseUrl: String
fileprivate let directoryPath: String
fileprivate let username: String
fileprivate let password: String
public init(baseUrl: String, userName: String, password: String, directoryPath: String) {
self.ftpBaseUrl = baseUrl
self.username = userName
self.password = password
self.directoryPath = directoryPath
}
}
// MARK: - Steam Setup
extension FTPUpload {
private func setFtpUserName(for ftpWriteStream: CFWriteStream, userName: CFString) {
let propertyKey = CFStreamPropertyKey(rawValue: kCFStreamPropertyFTPUserName)
CFWriteStreamSetProperty(ftpWriteStream, propertyKey, userName)
}
private func setFtpPassword(for ftpWriteStream: CFWriteStream, password: CFString) {
let propertyKey = CFStreamPropertyKey(rawValue: kCFStreamPropertyFTPPassword)
CFWriteStreamSetProperty(ftpWriteStream, propertyKey, password)
}
fileprivate func ftpWriteStream(forFileName fileName: String) -> CFWriteStream? {
let fullyQualifiedPath = "ftp://\(ftpBaseUrl)/\(directoryPath)/\(fileName)"
guard let ftpUrl = CFURLCreateWithString(kCFAllocatorDefault, fullyQualifiedPath as CFString, nil) else { return nil }
let ftpStream = CFWriteStreamCreateWithFTPURL(kCFAllocatorDefault, ftpUrl)
let ftpWriteStream = ftpStream.takeRetainedValue()
setFtpUserName(for: ftpWriteStream, userName: username as CFString)
setFtpPassword(for: ftpWriteStream, password: password as CFString)
return ftpWriteStream
}
}
// MARK: - FTP Write
extension FTPUpload {
public func send(data: Data, with fileName: String, success: @escaping ((Bool)->Void)) {
guard let ftpWriteStream = ftpWriteStream(forFileName: fileName) else {
success(false)
return
}
if CFWriteStreamOpen(ftpWriteStream) == false {
print("Could not open stream")
success(false)
return
}
let fileSize = data.count
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: fileSize)
data.copyBytes(to: buffer, count: fileSize)
defer {
CFWriteStreamClose(ftpWriteStream)
buffer.deallocate(capacity: fileSize)
}
var offset: Int = 0
var dataToSendSize: Int = fileSize
repeat {
let bytesWritten = CFWriteStreamWrite(ftpWriteStream, &buffer[offset], dataToSendSize)
if bytesWritten > 0 {
offset += bytesWritten.littleEndian
dataToSendSize -= bytesWritten
continue
} else if bytesWritten < 0 {
// ERROR
print("FTPUpload - ERROR")
break
} else if bytesWritten == 0 {
// SUCCESS
print("FTPUpload - Completed!!")
break
}
} while CFWriteStreamCanAcceptBytes(ftpWriteStream)
success(true)
}
}