cURL调用C＃ [英] cURL call in C#

问题描述

我需要执行cURL请求才能从网络中抓取CSV文件。我从来没有使用cURL之前，迄今为止，我通过谷歌看到的东西似乎没有意义：

cURL调用需要看起来像这样： / p>

  curl --user用户名：password http://somewebsite.com/events.csv 
  
 
 
 
我想要使用的代码（我使用它来获取基本的auth XML文件）
  string URL =http://somewebsite.com/events.csv; 
 string用户名=username; 
 string Password =password; 
 WebClient req = new WebClient（）; 
 
 CredentialCache myCache = new CredentialCache（）; 
 myCache.Add（new Uri（URL），Basic，new NetworkCredential（Username，Password））; 
 
 req.Credentials = myCache; 
 
 string results = null; 
 results = Encoding.UTF8.GetString（req.DownloadData（URL））; 
  
这只是给我一个登录屏幕的html，所以认证不会发生。
解决方案
我发现了问题。显然，当您在用户名字段中传递@符号（如电子邮件用户名）时，请求失败，因此必须将其转换为基本64字符串。这里的代码只是让别人跑到这里：
 
 
 
 string url =https://website.com/events.csv; WebRequest myReq = WebRequest.Create（url）; 
  string username =username 
 string password =password; 
 string usernamePassword = username +：+ password; 
 CredentialCache mycache = new CredentialCache（）; 
 mycache.Add（new Uri（url），Basic，new NetworkCredential（username，password））; 
 myReq.Credentials = mycache; 
 myReq.Headers.Add（Authorization，Basic+ Convert.ToBase64String（new ASCIIEncoding（）。GetBytes（usernamePassword）））; 
 
 WebResponse wr = myReq.GetResponse（）; 
 stream receiveStream = wr.GetResponseStream（）; 
 StreamReader reader = new StreamReader（receiveStream，Encoding.UTF8）; 
 string content = reader.ReadToEnd（）; 
 Console.WriteLine（content）; 
 Console.ReadLine（）; 
  
 
I need to perform a cURL request to grab a CSV file from the web. I've never used cURL before and so far the stuff I have seen via google doesn't seem to make sense:

the cURL call needs to look like this:
curl --user username:password http://somewebsite.com/events.csv
the code I am trying to use ( i use this to grab basic auth XML files)
string URL = "http://somewebsite.com/events.csv";
string Username = "username";
string Password = "password";
WebClient req = new WebClient();

CredentialCache myCache = new CredentialCache();
myCache.Add(new Uri(URL), "Basic", new NetworkCredential(Username, Password));

req.Credentials = myCache;

string results = null;
results = Encoding.UTF8.GetString(req.DownloadData(URL));
This just gives me back the html for a login screen so the authentication is not happening.
解决方案
I found the issue. Apparently the request fails when you pass an "@" sign ( like in the email username ) in the username field so it must be Converted to a base 64 string. Here is the code just incase someone else runs into this:

string url = "https://website.com/events.csv"; WebRequest myReq = WebRequest.Create(url);
    string username = "username";
    string password = "password";
    string usernamePassword = username + ":" + password;
    CredentialCache mycache = new CredentialCache();
    mycache.Add(new Uri(url), "Basic", new NetworkCredential(username, password));
    myReq.Credentials = mycache;
    myReq.Headers.Add("Authorization", "Basic " + Convert.ToBase64String(new ASCIIEncoding().GetBytes(usernamePassword)));

    WebResponse wr = myReq.GetResponse();
    Stream receiveStream = wr.GetResponseStream();
    StreamReader reader = new StreamReader(receiveStream, Encoding.UTF8);
    string content = reader.ReadToEnd();
    Console.WriteLine(content);
    Console.ReadLine();


                        
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