/// <summary>
/// Indicates whether the current request can be identified as an installation script
/// </summary>
/// <returns>True if the request is being made to the install directory, false otherwise.</returns>
public static bool IsInstallRequest()
{
HttpRequest request = HttpContextHelper.SafeGetRequest();
if (request != null)
{
// OBTAIN THE SCRIPT PATH FROM THE URL
string absolutePath = request.Url.AbsolutePath.ToLowerInvariant();
string relativePath;
if (request.ApplicationPath.Length > 1)
{
relativePath = absolutePath.Substring(request.ApplicationPath.Length);
}
else
{
relativePath = absolutePath;
}
// SEE IF THIS IS AN INSTALL SCRIPT
if (relativePath.StartsWith("/install/"))
{
return(true);
}
}
// AN INSTALL REQUEST WAS NOT DETECTED
return(false);
}
private void RemoveDataFromSession(string key)
{
HttpSessionState session = HttpContextHelper.SafeGetSession();
if (session != null)
{
session.Remove(key);
}
else if (_InternalStorage.ContainsKey(key))
{
_InternalStorage.Remove(key);
}
}
private void SetDataInSession(string key, object value)
{
HttpSessionState session = HttpContextHelper.SafeGetSession();
if (session != null)
{
session[key] = value;
}
else
{
_InternalStorage[key] = value;
}
}
private object GetDataFromSession(string key)
{
HttpSessionState session = HttpContextHelper.SafeGetSession();
if (session != null)
{
return(session[key]);
}
else if (_InternalStorage.ContainsKey(key))
{
return(_InternalStorage[key]);
}
else
{
return(null);
}
}
/// <summary>
/// Update the database connection string
/// </summary>
/// <param name="connectionString">new connection string</param>
/// <param name="encrypt"></param>
/// <returns></returns>
public static void UpdateConnectionString(string connectionString, bool encrypt)
{
HttpRequest request = HttpContextHelper.SafeGetRequest();
if (request != null)
{
try
{
System.Configuration.Configuration config = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(request.ApplicationPath);
ConnectionStringsSection section = config.GetSection("connectionStrings") as ConnectionStringsSection;
if (section.SectionInformation.IsProtected)
{
section.SectionInformation.UnprotectSection();
}
section.ConnectionStrings.Remove("LocalSqlServer");
section.ConnectionStrings["AbleCommerce"].ConnectionString = connectionString;
if (encrypt)
{
if (!section.SectionInformation.IsProtected)
{
section.SectionInformation.ProtectSection("DataProtectionConfigurationProvider");
}
}
else
{
if (section.SectionInformation.IsProtected)
{
section.SectionInformation.UnprotectSection();
}
}
config.Save();
}
catch
{
//IF MS API FAILS, WRITE THE FILE CLEARTEXT
StringBuilder textBuilder = new StringBuilder();
textBuilder.AppendLine("<connectionStrings>");
textBuilder.AppendFormat("\t<add name=\"AbleCommerce\" connectionString=\"{0}\" providerName=\"System.Data.SqlClient\" />\r\n", connectionString);
textBuilder.AppendLine("</connectionStrings>");
string configPath = request.MapPath("~/App_Data/database.config");
File.WriteAllText(configPath, textBuilder.ToString());
}
}
}
/// <summary>
/// Performs an automated lookup at whatismyip.com to determine the external IP of the calling server
/// </summary>
/// <returns>A string with the external IP of the calling server</returns>
public static string WhatIsMyIP()
{
// LOOK FOR CACHED IP INFORMATION
Cache cache = HttpContextHelper.SafeGetCache();
if (cache != null && cache["WhatIsMyIP"] != null)
{
return((string)cache["WhatIsMyIP"]);
}
// TRY TO GET IP FROM WEBSERVICE
string response = string.Empty;
try
{
HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create("http://www.whatismyip.com/automation/n09230945.asp");
httpWebRequest.Method = "GET";
using (StreamReader responseStream = new StreamReader(httpWebRequest.GetResponse().GetResponseStream(), System.Text.Encoding.UTF8))
{
response = responseStream.ReadToEnd();
responseStream.Close();
}
if (!Regex.IsMatch(response, @"^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$"))
{
response = string.Empty;
}
}
catch { }
// CACHE AND RETURN RESPONSE
if (cache != null)
{
cache.Add("WhatIsMyIP", response, null, Cache.NoAbsoluteExpiration, new TimeSpan(0, 10, 0), CacheItemPriority.Normal, null);
}
return(response);
}
/// <summary>
/// Decrypts the given encrypted text using the given key.
/// </summary>
/// <param name="cipherText">The encrypted text</param>
/// <param name="keyBytes">The key to use</param>
/// <returns>The decrypted text</returns>
public static string DecryptAES(string cipherText, byte[] keyBytes)
{
//DO NOT DECRYPT EMPTY STRING
if (string.IsNullOrEmpty(cipherText))
{
return(string.Empty);
}
//DO NOT DECRYPT IF THERE IS NO CRYPT KEY
if ((keyBytes == null) || (keyBytes.Length == 0))
{
return(cipherText);
}
// STORAGE FOR DATA DECODED FROM BASE64
byte[] ivPlusCipher;
try
{
// DECODE THE BASE64 DATA
ivPlusCipher = Convert.FromBase64String(cipherText);
}
catch (System.FormatException)
{
// DATA WAS NOT VALID BASE64, IT CANNOT BE DECRYPTED
return(cipherText);
}
// THE DECRYPTED DATA MUST BE AT LEAST 17 BYTES (AND PROBABLY LONGER)
if (ivPlusCipher.Length <= 16)
{
return(cipherText);
}
//CONVERT CIPHER TEXT TO BYTES
try
{
//SPLIT THE IV (FIRST 128 BITS) AND CIPHER TEXT
byte[] ivBytes = new byte[16];
byte[] cipherTextBytes = new byte[ivPlusCipher.Length - 16];
System.Buffer.BlockCopy(ivPlusCipher, 0, ivBytes, 0, 16);
System.Buffer.BlockCopy(ivPlusCipher, 16, cipherTextBytes, 0, cipherTextBytes.Length);
//CONFIGURE AES
RijndaelManaged symmetricKey = new RijndaelManaged();
symmetricKey.Mode = CipherMode.CBC;
symmetricKey.Key = keyBytes;
symmetricKey.IV = ivBytes;
//CREATE DECRYPTOR
ICryptoTransform decryptor = symmetricKey.CreateDecryptor();
//CREATE BUFFER TO HOLD DECRYPTED TEXT
byte[] plainTextBytes = new byte[cipherTextBytes.Length];
int decryptedByteCount;
//CREATE MEMORY STREAM OF DECRYPTED DATA
using (MemoryStream memoryStream = new MemoryStream(cipherTextBytes))
{
//CREATE THE CRYPTO STREAM
using (CryptoStream cryptoStream = new CryptoStream(memoryStream, decryptor, CryptoStreamMode.Read))
{
//DECRYPT THE CIPHER TEXT
decryptedByteCount = cryptoStream.Read(plainTextBytes, 0, plainTextBytes.Length);
//CLOSE CRYPTO STREAM
cryptoStream.Close();
}
//CLOSE MEMORY STREAM
memoryStream.Close();
}
//CONVERT DECRYPTED BYTES TO STRING
string plainText = Encoding.UTF8.GetString(plainTextBytes, 0, decryptedByteCount);
//RETURN DECRYPTED TEXT
return(plainText);
}
catch (Exception ex)
{
//SOMETHING WENT WRONG, RETURN ORIGINAL VALUE
string scriptName = HttpContextHelper.GetCurrentScriptName();
Logger.Debug("Error decrypting value " + cipherText + " in script " + scriptName, ex);
return(cipherText);
}
}
){kind=link}
){kind=link}