AliyunConnectionStringBuilder.cs

using System;
using System.Linq;

namespace Foundatio;

public abstract class AliyunConnectionStringBuilder
{
    public string Endpoint { get; set; } = string.Empty;

    public string AccessKey { get; set; } = string.Empty;

    public string SecretKey { get; set; } = string.Empty;

    protected AliyunConnectionStringBuilder() { }

    protected AliyunConnectionStringBuilder(string connectionString)
    {
        if (String.IsNullOrEmpty(connectionString))
            throw new ArgumentNullException(nameof(connectionString));
        Parse(connectionString);
    }

    private void Parse(string connectionString)
    {
        foreach (string[] option in connectionString
            .Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries)
            .Where(kvp => kvp.Contains('='))
            .Select(kvp => kvp.Split(new[] { '=' }, 2)))
        {
            string optionKey = option[0].Trim();
            string optionValue = option[1].Trim();
            if (!ParseItem(optionKey, optionValue))
            {
                throw new ArgumentException($"The option '{optionKey}' cannot be recognized in connection string.", nameof(connectionString));
            }
        }
    }

    protected virtual bool ParseItem(string key, string value)
    {
        if (String.Equals(key, "AccessKey", StringComparison.OrdinalIgnoreCase) ||
            String.Equals(key, "Access Key", StringComparison.OrdinalIgnoreCase) ||
            String.Equals(key, "AccessKeyId", StringComparison.OrdinalIgnoreCase) ||
            String.Equals(key, "Access Key Id", StringComparison.OrdinalIgnoreCase) ||
            String.Equals(key, "Id", StringComparison.OrdinalIgnoreCase))
        {
            AccessKey = value;
            return true;
        }
        if (String.Equals(key, "SecretKey", StringComparison.OrdinalIgnoreCase) ||
            String.Equals(key, "Secret Key", StringComparison.OrdinalIgnoreCase) ||
            String.Equals(key, "SecretAccessKey", StringComparison.OrdinalIgnoreCase) ||
            String.Equals(key, "Secret Access Key", StringComparison.OrdinalIgnoreCase) ||
            String.Equals(key, "AccessKeySecret", StringComparison.OrdinalIgnoreCase) ||
            String.Equals(key, "Access Key Secret", StringComparison.OrdinalIgnoreCase) ||
            String.Equals(key, "Secret", StringComparison.OrdinalIgnoreCase))
        {
            SecretKey = value;
            return true;
        }
        if (String.Equals(key, "EndPoint", StringComparison.OrdinalIgnoreCase) ||
            String.Equals(key, "End Point", StringComparison.OrdinalIgnoreCase))
        {
            Endpoint = value;
            return true;
        }
        return false;
    }

    public override string ToString()
    {
        string connectionString = String.Empty;
        if (!String.IsNullOrEmpty(AccessKey))
            connectionString += "AccessKey=" + AccessKey + ";";
        if (!String.IsNullOrEmpty(SecretKey))
            connectionString += "SecretKey=" + SecretKey + ";";
        if (!String.IsNullOrEmpty(Endpoint))
            connectionString += "EndPoint=" + Endpoint + ";";
        return connectionString;
    }
}