使用API​​上传文件

Question

我想使用网站的API上传文件（连续，不分块）。

以下是API的信息：

Request to:        http://server/upv3.php
Required Vars:
[username]         account username
[password]         account password
[upload_session]   upload session name from step 1 // I got that
[chunk_no]         set to "1"
[chunk_number]     set to "1"
[filesize]         filesize of current file in bytes
[fn]               filedata (in HTTP forms known as type="file")
[finalize]         set to "1"

Response:          DOWNLOAD-URL;FILESIZE;MD5

Example:           http://www.url.com/dl/HJD74ZDM1;
                   6547231;316508123e89909723fe95945caf00a5
                   (linebreak only in example!)

我认为应该使用POST发送所有这些属性。属性upload_session是我可以成功请求的属性。

这是我的实施：

public void SOUpload()
{
    string soUploadSession = "";
    string soUploadServer = "";

    SOCreateUploadSession(ref soUploadSession, ref soUploadServer);

    HttpWebRequest request = (HttpWebRequest)(HttpWebRequest.Create("http://" + soUploadServer));
    request.Method = "POST";
    request.ContentType = "application/x-www-form-urlencoded";

    long bytesRead = 0;
    byte[] fileBuffer = new byte[file.fileSize];
    FileStream fileStream = new FileStream("C:\\Users\\Patrick\\Downloads\\Prog\\UnityAssets\\start.unitypackage", FileMode.Open);
    byte[] postData = Encoding.ASCII.GetBytes("&username=USERNAME" + "&password=PASSWORD" +
                                              "&upload_session=" + soUploadSession +
                                              "&chunk_no=1"  + "&chunk_number=1"  +
                                              "&filesize=" + file.fileSize.ToString() +
                                              "&finalize=1" + "&fn=");
    Stream requestStream = request.GetRequestStream();
    requestStream.Write(postData, 0, postData.Length);
    while ((bytesRead = fileStream.Read(fileBuffer, 0, fileBuffer.Length)) != 0)
    {
        requestStream.Write(fileBuffer, 0, (int)bytesRead);
    }
    fileStream.Close();
    requestStream.Close();
    Stream responseStream = request.GetResponse().GetResponseStream();
    byte[] responseBuffer = new byte[1024];
    responseStream.Read(responseBuffer, 0, responseBuffer.Length);
    string response = Encoding.ASCII.GetString(responseBuffer);
}

我知道如何实现下载（使用octet-stream），所以我认为上传大致相同，主要区别在于不是从网络流中读取数据并将其写入文件，我正在从文件流中读取数据并将此数据写入网络流....但显然它不会那样工作。