NSURLSession - DownloadTask doesn't work with some URL

Question

Here the code:

let url = NSURL(string: "http://a337.phobos.apple.com/us/r30/Music/d5/a8/6b/mzi.msfqeogi.aac.p.m4a")
let downloadTask = self.downloadSession.downloadTaskWithURL(url!)
downloadTask.resume()

-> OK

Replace the URL with: http://s1mp3.r41s223.vcdn.vn/d3f549abeeef07b15efe/2937387453157939420?key=c2WuQChtsmR9yfdz9I-jnw&expires=1480695588&filename=Only%20Love%20-%20Trademark.mp3

-> it doesn't work; nothing happens

score 1 · Answer 1 · answered Dec 02 '16 at 13:26

1

By default starting in iOS 9 all connections must be https. If the website for the second URL doesn't support https:// then the download would fail.

I suggest checking the error code you get back from the Download

answered Dec 02 '16 at 13:26

Duncan C

128,072
22
173
272

score 0 · Answer 2 · answered Dec 02 '16 at 13:33

0

If you want to use url with HTTP connection, then in your info.plist file add the following App Transport Security Setting and in that add subsection Allow Arbitrary Loads and set the value to YES.

answered Dec 02 '16 at 13:33

Aneesh

107
7

score -2 · Answer 3 · answered Dec 02 '16 at 13:29

Please add in Plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
    <key>NSExceptionDomains</key>
    <dict>
        <key>akamaihd.net</key>
        <dict>
            <key>NSExceptionRequiresForwardSecrecy</key>
            <false/>
            <key>NSIncludesSubdomains</key>
            <true/>
        </dict>
        <key>facebook.com</key>
        <dict>
            <key>NSExceptionAllowsInsecureHTTPLoads</key>
            <true/>
            <key>NSExceptionRequiresForwardSecrecy</key>
            <false/>
            <key>NSIncludesSubdomains</key>
            <true/>
        </dict>
        <key>fbcdn.net</key>
        <dict>
            <key>NSExceptionRequiresForwardSecrecy</key>
            <false/>
            <key>NSIncludesSubdomains</key>
            <true/>
        </dict>
        <key>graph.facebook.com</key>
        <dict>
            <key>NSExceptionAllowsInsecureHTTPLoads</key>
            <true/>
            <key>NSExceptionRequiresForwardSecrecy</key>
            <false/>
            <key>NSIncludesSubdomains</key>
            <true/>
        </dict>
    </dict>
</dict>
</plist>

Then using Alamofire 4.0 Swift 3.0

Using below method, you can download any thing, ex. PDF

 // Mark:- Download File
    func DownloadFile(strFileUrl : String, strFileName : String, success:@escaping (_ strResultURL: String) -> Void , failure:@escaping (_ responseObject:AnyObject) -> Void) {
        let destination: DownloadRequest.DownloadFileDestination = { _, _ in
            let documentsURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
            let fileURL = documentsURL.appendingPathComponent("\(strFileName)")

            return (fileURL, [.removePreviousFile, .createIntermediateDirectories])
        }

        Alamofire.download(strFileUrl, to: destination).response { response in

                if SVProgressHUD.isVisible() {
                    SVProgressHUD.dismiss()
                }

                if response.error == nil {
                    success("\(response.destinationURL!)")
                }
                else {
                    failure(response.error as AnyObject)
                }
            }.downloadProgress { (progress) in
                print("Download Progress: \(progress.fractionCompleted)")
                SVProgressHUD.showProgress(Float(progress.fractionCompleted), status: AppAlertMsg.KDownloadingPDFs)
        }
    }

NSURLSession - DownloadTask doesn't work with some URL

3 Answers3