using System; using System.IO; using System.Text; using System.Collections.Generic; using System.Security.Cryptography.X509Certificates; using System.Security.Cryptography; namespace VWFC.IT.CUP.BLL.Common { /// <summary> /// web tools /// </summary> public sealed class WebUtils { #region Get Private Key /// <summary> /// Get Private Key /// </summary> /// <param name="path">pfx path</param> /// <param name="password">Private key password</param> /// <returns></returns> static public string GetPrivateKey(string path, string password) { try { X509Certificate2 cert = new X509Certificate2(path, password, X509KeyStorageFlags.Exportable | X509KeyStorageFlags.PersistKeySet); return cert.PrivateKey.ToXmlString(true); } catch { return string.Empty; } } #endregion #region Get Public Key /// <summary> /// Get Public Key /// </summary> /// <param name="path">pfx path</param> /// <param name="password">Private key password</param> /// <returns></returns> static public string GetPublicKey(string path, string password) { try { X509Certificate2 cert = new X509Certificate2(path, password, X509KeyStorageFlags.Exportable | X509KeyStorageFlags.PersistKeySet); return cert.PublicKey.Key.ToXmlString(false); } catch { return string.Empty; } } #endregion #region Get SHA512 Hash From String /// <summary> /// Get SHA512 Hash From String /// </summary> /// <param name="originalData"></param> /// <returns></returns> static public string GetHash512String(string originalData) { string result = string.Empty; byte[] bytValue = Encoding.UTF8.GetBytes(originalData); SHA512 sha512 = new SHA512CryptoServiceProvider(); byte[] retVal = sha512.ComputeHash(bytValue); StringBuilder sb = new StringBuilder(); for (int i = 0; i < retVal.Length; i++) { sb.Append(retVal[i].ToString("x2")); } result = sb.ToString(); return result; } /// <summary> /// Get SHA512 Hash From String /// </summary> /// <param name="originalData"></param> /// <returns></returns> static public string GetSHA512HashFromString2(string originalData) { string result = string.Empty; byte[] buffer = Encoding.UTF8.GetBytes(originalData); SHA512CryptoServiceProvider SHA512 = new SHA512CryptoServiceProvider(); byte[] h5 = SHA512.ComputeHash(buffer); result = BitConverter.ToString(h5).Replace("-", string.Empty); result = result.ToLower(); return result; } #endregion #region Get the value of the key from the key file /// <summary> /// Get the value of the key from the key file /// </summary> /// <param name="type">RSA PRIVATE KEY/RSA PUBLIC KEY</param> /// <param name="pemUrl">url of the key file</param> /// <returns>base64 string</returns> static public string GetKeyFromPem(string type, string pemUrl) { string base64 = string.Empty; try { using (FileStream fs = File.OpenRead(pemUrl)) { byte[] data1 = new byte[fs.Length]; fs.Read(data1, 0, data1.Length); string pem = Encoding.UTF8.GetString(data1); string header = String.Format("-----BEGIN {0}----- ", type); string footer = String.Format("-----END {0}-----", type); int start = pem.IndexOf(header) + header.Length; int end = pem.IndexOf(footer, start); base64 = pem.Substring(start, (end - start)); } } catch { } return base64; } #endregion #region Parse Dictionary #region Dictionary Parse To String /// <summary> /// Dictionary Parse To String /// </summary> /// <param name="parameters">Dictionary</param> /// <returns>String</returns> static public string ParseToString(IDictionary<string, string> parameters) { IDictionary<string, string> sortedParams = new SortedDictionary<string, string>(parameters); IEnumerator<KeyValuePair<string, string>> dem = sortedParams.GetEnumerator(); StringBuilder query = new StringBuilder(""); while (dem.MoveNext()) { string key = dem.Current.Key; string value = dem.Current.Value; if (!string.IsNullOrEmpty(key) && !string.IsNullOrEmpty(value)) { query.Append(key).Append("=").Append(value).Append("&"); } } string content = query.ToString().Substring(0, query.Length - 1); return content; } #endregion #region String Parse To Dictionary /// <summary> /// String Parse To Dictionary /// </summary> /// <param name="parameter">String</param> /// <returns>Dictionary</returns> static public Dictionary<string, string> ParseToDictionary(string parameter) { try { String[] dataArry = parameter.Split('&'); Dictionary<string, string> dataDic = new Dictionary<string, string>(); for (int i = 0; i <= dataArry.Length - 1; i++) { String dataParm = dataArry[i]; int dIndex = dataParm.IndexOf("="); if (dIndex != -1) { String key = dataParm.Substring(0, dIndex); String value = dataParm.Substring(dIndex + 1, dataParm.Length - dIndex - 1); dataDic.Add(key, value); } } return dataDic; } catch { return null; } } #endregion #endregion #region Base64 encryption and decryption /// <summary> /// 服务器端Base64编码 /// </summary> /// <param name="data"></param> /// <returns></returns> static public string Base64Encode(string data) { string result = data; try { byte[] encData_byte = Encoding.UTF8.GetBytes(data); result = Convert.ToBase64String(encData_byte); } catch { } return result; } /// <summary> /// 服务器端Base64解码 /// </summary> /// <param name="data"></param> /// <returns></returns> static public string Base64Decode(string data) { string result = data; string decode = string.Empty; //try //{ // byte[] bytes = Convert.FromBase64String(result); // decode = Encoding.UTF8.GetString(bytes); //} //catch { } try { UTF8Encoding encoder = new UTF8Encoding(); Decoder utf8Decode = encoder.GetDecoder(); byte[] todecode_byte = Convert.FromBase64String(data); int charCount = utf8Decode.GetCharCount(todecode_byte, 0, todecode_byte.Length); char[] decoded_char = new char[charCount]; utf8Decode.GetChars(todecode_byte, 0, todecode_byte.Length, decoded_char, 0); result = new String(decoded_char); } catch { } return result; } #endregion #region Assign parameters to specified objects /// <summary> /// Assign parameters to specified objects /// </summary> /// <typeparam name="T">object type</typeparam> /// <param name="dic">Fields/values</param> /// <returns></returns> static public T Assign<T>(Dictionary<string, string> dic) where T : new() { Type myType = typeof(T); T entity = new T(); var fields = myType.GetProperties(); string val = string.Empty; object obj = null; foreach (var field in fields) { if (!dic.ContainsKey(field.Name)) continue; val = dic[field.Name]; object defaultVal; if (field.PropertyType.Name.Equals("String")) defaultVal = ""; else if (field.PropertyType.Name.Equals("Boolean")) { defaultVal = false; val = (val.Equals("1") || val.Equals("on")).ToString(); } else if (field.PropertyType.Name.Equals("Decimal")) defaultVal = 0M; else defaultVal = 0; if (!field.PropertyType.IsGenericType) obj = string.IsNullOrEmpty(val) ? defaultVal : Convert.ChangeType(val, field.PropertyType); else { Type genericTypeDefinition = field.PropertyType.GetGenericTypeDefinition(); if (genericTypeDefinition == typeof(Nullable<>)) obj = string.IsNullOrEmpty(val) ? defaultVal : Convert.ChangeType(val, Nullable.GetUnderlyingType(field.PropertyType)); } field.SetValue(entity, obj, null); } return entity; } #endregion } }
调用
//string publickKeyCer = Path.Combine(baseDirectory, AppConfig.GetPublicKeyCer); //publicKey = WebUtils.GetKeyFromPem("CERTIFICATE", publickKeyCer); //privateKey = WebUtils.GetPrivateKey(fileKeyUrl, AppConfig.GetPrivateKeyPassword);