swift - 将视频(和属性)上传到 vimeo 的 RESTful 机制

Question

将视频上传到 Vimeo 的过程开始时与为 Youtube 定义的过程非常相似，但仅在一定程度上有所不同。下面我将描述有效的步骤，并概述无效的最后一个视频上传步骤:

当我们传递以下参数以触发用户身份验证时，Vimeo 上传舞蹈开始:

let authPath:String = "\(url_vauth)?response_type=\(response_type)&client_id=\(client_id)&redirect_uri=\(redirect_uri)&state=\(state)&scope=upload"

if let authURL:NSURL = NSURL(string: authPath) {
  let request = NSURLRequest(URL: authURL)
  webView.loadRequest(request)  // opens a webpage in a webUIView

  // once credentials are entered, google redirects back with the above uri + a temporary code
  // we will exchange later for a token

  // within AppDelegate, we have defined a way to handle this uri, which is to call
  // processOAuthStep1Response(url)

然后，我们处理返回的响应以提取授权码:

let components = NSURLComponents(URL: url, resolvingAgainstBaseURL: false)
var auth_code:String!
// the block below extracts the text that follows "code" in the return url

if let queryItems = components?.queryItems {
  for queryItem in queryItems { // step through each part of url
    if queryItem.name.lowercaseString == "code" {
      auth_code = queryItem.value
      break
    } //  end of if queryItem.name.lowercaseString
  } // end of for
} // if let queryItems

有了这个授权码，我们就可以生成一个 token :

  let getTokenPath:String = url_token
  let grant_type = "authorization_code"
  let header_plain = "\(client_id):\(client_secret)"
  let string_plain = header_plain.dataUsingEncoding(NSUTF8StringEncoding)
  let string_base64 = (string_plain?.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0)))! as String
  let headers = ["Authorization": "basic \(string_base64)"]  // note that string_base64 really needs to be in base64!
  //print ("...header is: \(string_base64)")
  let tokenParams = ["grant_type": grant_type, "code": receivedCode, "redirect_uri": redirect_uri, "scope": "public"]
  let request = Alamofire.request(.POST, getTokenPath, parameters: tokenParams, encoding: .URL, headers: headers)

我们使用此 token 生成票:

request(.POST, url_getticket, parameters: ticketParams , encoding: .URL, headers: headers).responseJSON { response  in
  //print(response)
  switch response.result {
  case .Success(let data):
    let json = JSON(data)
    print (json)
    let myticket = json["ticket_id"].stringValue
    //let usage = json[("upload_quota")].stringValue
    let htmlform = json[("form")].stringValue
    let uploadlink = json[("upload_link_secure")].stringValue
    print("......ticket is \(myticket)")
    print("......form is \(htmlform)")
    print("......upload link is \(uploadlink)")
  case .Failure(let error):
    print("Request failed with error: \(error)")
  } // end of switch

最后(这就是事情戛然而止的地方)我们应该使用这张票证向 Vimeo 发出 POST 请求。问题是这张票嵌入在一个 html 表单中，该表单实际上向 Vimeo 发出上传请求......对于我试图实现它的 iOS 平台来说不是很有用。理想情况下，我想通过像这样的上传调用使用 Alamofire 实现:

  let headers = ["Authorization": "Bearer \(token)"]
  upload(
      .POST,
      "https://1511923767.cloud.vimeo.com/upload?ticket_id=#######&video_file_id=####&signature=####&v6=1&redirect_url=https%3A%2F%2Fvimeo.com%2Fupload%2Fapi%3Fvideo_file_id%3D498216063%26app_id%3D70020%26ticket_id%####%26signature%######", 
      headers: headers,
      multipartFormData: { multipartFormData in
        multipartFormData.appendBodyPart(data: videodata, name: "video", fileName: "bagsy.m4v", mimeType: "application/octet-stream")
      },
      encodingCompletion: { encodingResult in
        switch encodingResult {
        case .Success(let upload, _, _):
          upload.progress { bytesWritten, totalBytesWritten, totalBytesExpectedToWrite in
            dispatch_async(dispatch_get_main_queue()) {
              let percent = (Float(totalBytesWritten) / Float(totalBytesExpectedToWrite))
              //progress(percent: percent)
              print ("................\(percent)")
            }
          }
          upload.validate()
          upload.responseJSON { response in
            print(response)
            callback(true)
          }
        case .Failure(_):
          callback(false)
        }

    })

不用说，上面的代码块不起作用。任何指导将不胜感激。

Answer 1

考虑使用官方 Vimeo iOS Upload SDK .我们大约 2 周前将其公开。它是一个处理将视频文件上传到 Vimeo 服务器的 Swift 库。它使用后台配置的 NSURLSession 执行此操作(因此无论您的应用程序是在前台还是后台，上传都会继续)。有任何疑问，请告知我们。注意:我是图书馆的作者之一，我在 Vimeo 工作。

VimeoUpload自述文件非常强大，应该传达您需要知道的所有信息。 Lettuce 知道您是否还有其他问题，或者随时提出拉取请求。