mjpg-streamerのページにBASIC認証を掛ける+iOSアプリ上からでも認証を通して画像を見られるようにする話

#!/bin/sh                                                                      

ACTION=$1
DEVICE=$2

start_action() {
./mjpg_streamer -i "./input_uvc.so -f 2 -r 320x240 -d /dev/video0 -y" -o "./o\
utput_http.so -w ./www -p 8081"                                                
}

stop_action() {
  kill -9 `pidof mjpg_streamer`
}

case $ACTION in
  start)
       start_action
       ;;
   stop)
       stop_action
       ;;
   *)
       ;;
esac

start_action() {
sudo ./mjpg_streamer -i "./input_uvc.so -d /dev/video0 -r 320x240 -f 5 -q 50 -\
y -n" -o "./output_http.so -w ./www -p 8081 -c [任意のID]:[任意のパスワード]"                                           
}

func loadCamView(){
        var url: String = "http://example.com:8081/?action=snapshot"
        let requestURL = NSURL(string: url)
        let req = NSURLRequest(URL: requestURL!)

        MonitorWebView.loadRequest(req)
    }

func loadCamView(){
        var url: String = "userid:pass@negipoyoc.dip.jp:8081/?action=snapshot"
        let requestURL = NSURL(string: url)
        let req = NSURLRequest(URL: requestURL!)
        camWebView.loadRequest(req)
    }

func loadCamView(){
    var url_with_basic_auth = "http://example:8081/?action=snapshot"
    var url = NSURL(string: url_with_basic_auth)
    var req = NSMutableURLRequest(URL: url!)

    var username = "userid"
    var password = "pass"
    var authStr = "\(username):\(password)"
    var data = authStr.dataUsingEncoding(NSUTF8StringEncoding)

    var authData = data!.base64EncodedStringWithOptions(NSDataBase64EncodingOptions.allZeros)
    var authValue = "Basic \(authData)"

    //作成したAuthorizationヘッダーの付与
    req.setValue(authValue, forHTTPHeaderField: "Authorization")

    camWebView.loadRequest(req)
    }

class SettingViewController: UIViewController, UITextFieldDelegate {

    @IBOutlet weak var MonitorUserNameTextField: UITextField!
    @IBOutlet weak var MonitorPasswordTextField: UITextField!
    let settingManager = SettingManager()



    override func viewDidLoad() {
        //Xcodeのバグのため必要
        self.tabBarItem.selectedImage = UIImage(named: "Setting_PDF")

        //監視カメラのユーザ情報などをロードする
        var userName = settingManager.SettingLoad("MonitorUserName")
        var password = settingManager.SettingLoad("MonitorPassword")

        //@Unknownはロードできなかったときに返されるString値
        MonitorUserNameTextField.text =
        userName == "@Unknown" ? "Please Set UserName" : userName

        MonitorPasswordTextField.text =
        password == "@Unknown" ? "" : password

        //Returnキーを押した際にキーボードを閉じるための関数
        //(参考：https://akira-watson.com/iphone/textfield.html)
        MonitorUserNameTextField.delegate = self
        MonitorPasswordTextField.delegate = self

    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    @IBAction func MonitorUserNameTextField_EditingDidEnd(sender: UITextField) {
        var userName = MonitorUserNameTextField.text
        settingManager.SettingSave(userName, keyName : "MonitorUserName")
    }


    @IBAction func MonitorPasswordTextField_EditingDidEnd(sender: UITextField) {
        var password = MonitorPasswordTextField.text
        settingManager.SettingSave(password, keyName: "MonitorPassword")

    }

    //Returnキーを押した際にキーボードを閉じるための関数
    func textFieldShouldReturn(textField: UITextField) -> Bool{
        textField.resignFirstResponder()
        return true
    }
}

import UIKit

class SettingManager {
    let config = NSUserDefaults.standardUserDefaults()

    func SettingSave(value : String , keyName : String){
        // 設定値の保存
        config.setObject(value,forKey:keyName)
        config.synchronize() // シンクロを入れないとうまく動作しないときがあります
    }


    func SettingLoad(keyName : String) -> String{
        // 設定値の取得
        let result : AnyObject! = config.objectForKey(keyName)

        // 存在しないキーはnilが返る            
        if result == nil {
            //もしkeyに対応するものがなかったら"@Unknown"を返す。
            return "@Unknown"
        }
        // AnyObjectからString型にダウンキャストするときは as NSString
        var val:String = result as! NSString as String 
        return val;

    }
}

var username = "userid"
var password = "pass"

var username = settingManager.SettingLoad("MonitorUserName")
var password = settingManager.SettingLoad("MonitorPassword")