Swift 3 - FTP Upload - ios

Question

I have added the Rebekka touch framework to my Swift 3 project in order to upload files via FTP.
I have used the swift 3 conversion tool in xCode and I'm left with just one error
Value of type 'NSMutableData' has no member 'count'
And here's where it occurs:
let bytes = self.inputData!.bytes.bindMemory(to: UInt8.self, capacity: self.inputData!.count)
Full Function:
override func streamEventEnd(_ aStream: Stream) -> (Bool, NSError?) {
var offset = 0
let bytes = self.inputData!.bytes.bindMemory(to: UInt8.self, capacity: self.inputData!.count)
let totalBytes = CFIndex(self.inputData!.length)
var parsedBytes = CFIndex(0)
let entity = UnsafeMutablePointer<Unmanaged<CFDictionary>?>.allocate(capacity: 1)
var resources = [ResourceItem]()
repeat {
parsedBytes = CFFTPCreateParsedResourceListing(nil, bytes.advancedBy(offset), totalBytes - offset, entity)
if parsedBytes > 0 {
let value = entity.pointee?.takeUnretainedValue()
if let fptResource = value {
resources.append(self.mapFTPResources(fptResource))
}
offset += parsedBytes
}
} while parsedBytes > 0
self.resources = resources
entity.deinitialize()
return (true, nil)
}
Does anybody know the swift 3 equivalent of self.inputData!.count ?

Answer 1

I am using Swift3.
I did the following changes in the source code of Rebekka framework, specifically, the file ResourceListOperation.swift. (Note: advanced(by:..), .length).
fileprivate var inputData: NSMutableData?
var resources: [ResourceItem]?
override func streamEventEnd(_ aStream: Stream) -> (Bool, NSError?) {
var offset = 0
let bytes = self.inputData!.bytes.bindMemory(to: UInt8.self, capacity: self.inputData!.length)
let totalBytes = CFIndex(self.inputData!.length)
var parsedBytes = CFIndex(0)
let entity = UnsafeMutablePointer<Unmanaged<CFDictionary>?>.allocate(capacity: 1)
var resources = [ResourceItem]()
repeat {
parsedBytes = CFFTPCreateParsedResourceListing(nil, bytes.advanced(by: offset), totalBytes - offset, entity)
if parsedBytes > 0 {
let value = entity.pointee?.takeUnretainedValue()
if let fptResource = value {
resources.append(self.mapFTPResources(fptResource))
}
offset += parsedBytes
}
} while parsedBytes > 0
self.resources = resources
entity.deinitialize()
return (true, nil)
}
Here is what I used in my application to list the directory after importing RebekkaTouch framework:
var configuration = SessionConfiguration()
configuration.host = "<ip-address:followed-by-port>"
configuration.username = "uname"
configuration.password = "password"
configuration.encoding = String.Encoding.utf8
self.session = Session(configuration: configuration)
self.session.list("/") {
(resources, error) -> Void in
print("List directory with result:\n\(String(describing: resources)), error: \(String(describing: error))\n\n")
}

Answer 2

As suggested in the comments I used .length to get this working, along with some other slight changes as below:
override func streamEventEnd(_ aStream: Stream) -> (Bool, NSError?) {
var offset = 0
let bytes = self.inputData!.bytes.bindMemory(to: UInt8.self, capacity: self.inputData!.count)
let totalBytes = CFIndex(self.inputData!.length)
var parsedBytes = CFIndex(0)
let entity = UnsafeMutablePointer<Unmanaged<CFDictionary>?>.allocate(capacity: 1)
var resources = [ResourceItem]()
repeat {
parsedBytes = CFFTPCreateParsedResourceListing(nil, bytes.advancedBy(offset), totalBytes - offset, entity)
if parsedBytes > 0 {
let value = entity.pointee?.takeUnretainedValue()
if let fptResource = value {
resources.append(self.mapFTPResources(fptResource))
}
offset += parsedBytes
}
} while parsedBytes > 0
self.resources = resources
entity.deinitialize()
return (true, nil)
}
I then got some errors when tying to use Rebekka touch, the example usage didn't work so I modified slightly as below:
var configuration = SessionConfiguration()
configuration.host = "ftp.somewebsite.co.uk"
configuration.username = "username"
configuration.password = "password"
let URL = filename
let path = "/"+currentJob.ReservationsID+".png"
Session(configuration: configuration).upload(URL, path: path) {
(result, error) -> Void in
print("Upload file with result:\n\(result), error: \(error)\n\n")
}