using System;

using System.IO;

using System.Net;

using System.Runtime.Serialization.Json;

using System.Text;

using System.Threading.Tasks;

​

class Program

{

    // 固定的 API 密钥

    private static readonly string ApiKey = "SHhYYcYSpIaRuvl1lveTaPhUdItGSxhC";

​

    // API 地址

    private static readonly string ApiUrl = "https://sm.ms/api/v2/upload";

​

    static async Task Main(string[] args)

    {

        if (args.Length == 0)

        {

            Console.WriteLine("Please provide at least one file path.");

            return;

        }

​

        foreach (string filePath in args)

        {

            string url = await UploadFileAsync(filePath);

            if (!string.IsNullOrEmpty(url))

            {

                Console.WriteLine(url);

            }

        }

    }

​

    private static async Task<string> UploadFileAsync(string filePath)

    {

        // 解码文件路径

        string decodedFilePath = Uri.UnescapeDataString(filePath);

​

        // 检查文件是否存在

        if (!File.Exists(decodedFilePath))

        {

            Console.WriteLine("File not found: " + decodedFilePath);

            return null;

        }

​

        try

        {

            // 创建 HttpWebRequest 对象

            var request = (HttpWebRequest)WebRequest.Create(ApiUrl);

            request.Method = "POST";

            string boundary = "---------------------------" + Guid.NewGuid().ToString();

            request.ContentType = "multipart/form-data; boundary=" + boundary;

            request.Headers.Add("Authorization", ApiKey);

​

            // 创建请求内容

            var boundaryBytes = Encoding.UTF8.GetBytes("--" + boundary + "\r\n");

            var endBoundaryBytes = Encoding.UTF8.GetBytes("\r\n--" + boundary + "--\r\n");

​

            using (var requestStream = await request.GetRequestStreamAsync())

            {

                // 写入文件字段头部

                await requestStream.WriteAsync(boundaryBytes, 0, boundaryBytes.Length);

​

                string fileHeader = "Content-Disposition: form-data; name=\"smfile\"; filename=\"" + Path.GetFileName(decodedFilePath) + "\"\r\nContent-Type: application/octet-stream\r\n\r\n";

                var fileHeaderBytes = Encoding.UTF8.GetBytes(fileHeader);

                await requestStream.WriteAsync(fileHeaderBytes, 0, fileHeaderBytes.Length);

​

                // 写入文件内容

                byte[] fileContent = await File.ReadAllBytesAsync(decodedFilePath);

                await requestStream.WriteAsync(fileContent, 0, fileContent.Length);

​

                // 结束边界

                await requestStream.WriteAsync(endBoundaryBytes, 0, endBoundaryBytes.Length);

            }

​

            // 读取响应

            using (var response = (HttpWebResponse)await request.GetResponseAsync())

            using (var responseStream = response.GetResponseStream())

            {

                var serializer = new DataContractJsonSerializer(typeof(ApiResponse));

                var result = (ApiResponse)serializer.ReadObject(responseStream);

​

                if (result.Success)

                {

                    return result.Data.Url;

                }

                else

                {

                    Console.WriteLine("Upload failed: " + result.Message);

                    return null;

                }

            }

        }

        catch (Exception ex)

        {

            Console.WriteLine("Exception: " + ex.Message);

            return null;

        }

    }

​

    [System.Runtime.Serialization.DataContract]

    private class ApiResponse

    {

        [System.Runtime.Serialization.DataMember(Name = "success")]

        public bool Success { get; set; }

​

        [System.Runtime.Serialization.DataMember(Name = "data")]

        public ApiResponseData Data { get; set; }

​

        [System.Runtime.Serialization.DataMember(Name = "message")]

        public string Message { get; set; }

    }

​

    [System.Runtime.Serialization.DataContract]

    private class ApiResponseData

    {

        [System.Runtime.Serialization.DataMember(Name = "url")]

        public string Url { get; set; }

    }

}

​