使用 httpclient 将 curl 命令转换为 C# 代码

Question

Command I need to convert :我需要转换的命令：

curl.exe --digest -u login:pw -s -F "cert=@.\cert.pem" http://127.0.0.1/upload.htm

C# code I'm trying :我正在尝试的 C# 代码：

 HttpClientHandler handler = new HttpClientHandler();
            handler.Credentials = new NetworkCredential("login", "pw");
            HttpClient client = new HttpClient(handler);
            client.BaseAddress = new Uri("http://127.0.0.1");
...
 var content = new StringContent(fileContents);      
            content.Headers.ContentDisposition = new ContentDispositionHeaderValue("form-data")
            {
                Name = "cert",
                FileName = "cert.pem"
            };


            await client.PostAsync("/upload.htm", content);

Result :结果：

<body><h1>HTTP/1.0 415 Unsupported Media Type</h1></body>

aldo tested the following c# code : aldo 测试了以下 c# 代码：

string executableLocation = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);

            String path = Path.Combine(executableLocation, "cert.pem");
            var fs = File.Open(path, FileMode.Open);                      

            var multiPartContent = new MultipartFormDataContent();
            var fc = new StreamContent(fs);
            fc.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");

            multiPartContent.Add(fc, "certUsageUnspecified", "cert.pem");                

            var uploadCertificate = await client.PostAsync("/upload.htm", multiPartContent);               
            
            logger.Info(await uploadCertificate.Content.ReadAsStringAsync());

            logger.Info("=== end upload certificate ===");

and result is the following :结果如下：

<body><h1>HTTP/1.0 400 Bad Request</h1></body>

I don't know what I'm doing wrong there but I can't find the solution.我不知道我在那里做错了什么，但我找不到解决方案。 It's working fine with the curl command.使用 curl 命令可以正常工作。

Answer 1

curl -F is for multipart -F, --form <name=content> Specify HTTP multipart POST data Try the following: curl -F用于 multipart -F, --form <name=content> Specify HTTP multipart POST data尝试以下操作：

 var content = new MultipartFormDataContent();
 var fs = File.Open(".\cert.pem", FileMode.Open);
 var fc = new StreamContent(fs);
 fc.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
 content.Add(fc, "cert", "cert.pem");

For information only curl headers received with a file cert.pem whose content is "cert".有关信息，只有随文件 cert.pem 接收的curl标头，其内容为“cert”。

POST
Partial body: --------------------------87b709a918c0166a
Content-Disposition: form-data; name="cert"; filename="cert.pem"
Content-Type: application/octet-stream

"cert"

--------------------------87b709a918c0166a--

Body: --------------------------87b709a918c0166a
Content-Disposition: form-data; name="cert"; filename="cert.pem"
Content-Type: application/octet-stream

"cert"

--------------------------87b709a918c0166a--

The equivalent received with proposed .NET code:收到的等效 .NET 代码：

POST
Partial body: --7ee9988d-bfd9-46d6-b0c9-74af30d7a6a2
Content-Disposition: form-data; name=cert; filename=cert.pem; filename*=utf-8''cert.pem
Content-Type: application/octet-stream

"cert"

--7ee9988d-bfd9-46d6-b0c9-74af30d7a6a2--

Body: --7ee9988d-bfd9-46d6-b0c9-74af30d7a6a2
Content-Disposition: form-data; name=cert; filename=cert.pem; filename*=utf-8''cert.pem
Content-Type: application/octet-stream

"cert"

--7ee9988d-bfd9-46d6-b0c9-74af30d7a6a2--

This is not strictly the same for Content-Disposition: header value but its very close.这与Content-Disposition:标头值并不完全相同，但非常接近。

使用 httpclient 将 curl 命令转换为 C# 代码

问题描述

1 个解决方案

解决方案1
0 2021-10-27 16:24:48

使用 httpclient 将 curl 命令转换为 C# 代码

问题描述

1 个解决方案

解决方案1 0 2021-10-27 16:24:48

解决方案1
0 2021-10-27 16:24:48