/// <summary>
/// Get current Language from User language list
/// </summary>
/// <param name="myLanguagesCultureList">My languages culture list.</param>
/// <returns></returns>
private static LanguageCultureItem InternalGetUserLanguages(LanguageCultureCollection myLanguagesCultureList)
{
// Get userLangs
if (HttpContext.Current != null && HttpContext.Current.Request.UserLanguages != null &&
HttpContext.Current.Request.UserLanguages.Length > 0)
{
var arrUserLangs = new ArrayList(HttpContext.Current.Request.UserLanguages);
if (arrUserLangs.Count > 0)
{
for (var i = 0; i <= arrUserLangs.Count - 1; i++)
{
string currentLanguage;
if (arrUserLangs[i].ToString().IndexOf(';') >= 0)
{
currentLanguage = arrUserLangs[i].ToString().Substring(
0, arrUserLangs[i].ToString().IndexOf(';'));
}
else
{
currentLanguage = arrUserLangs[i].ToString();
}
try
{
// We try the full one... if this fails we catch it
arrUserLangs[i] = new CultureInfo(currentLanguage);
}
catch (ArgumentException)
{
try
{
// Some browsers can send an invalid language
// we try to get first two letters.. this is usually valid
arrUserLangs[i] = new CultureInfo(currentLanguage.Substring(2));
}
catch (ArgumentException)
{
}
return(null);
}
}
}
var userLangs = (CultureInfo[])arrUserLangs.ToArray(typeof(CultureInfo));
// Try to match browser "accept languages" list
return(myLanguagesCultureList.GetBestMatching(userLangs));
}
return(null);
}
/// <summary>
/// Get current Language from Query string
/// </summary>
/// <param name="myLanguagesCultureList">My languages culture list.</param>
/// <returns></returns>
private static LanguageCultureItem InternalGetQuerystring(LanguageCultureCollection myLanguagesCultureList)
{
if (HttpContext.Current != null && HttpContext.Current.Request.Params["Lang"] != null &&
HttpContext.Current.Request.Params["Lang"].Length > 0)
{
try
{
return
(myLanguagesCultureList.GetBestMatching(
new CultureInfo(HttpContext.Current.Request.Params["Lang"])));
}
catch (ArgumentException)
{
// Maybe an invalid CultureInfo
return(null);
}
}
return(null);
}
/// <summary>
/// Get current Language from Cookie
/// </summary>
/// <param name="myLanguagesCultureList">My languages culture list.</param>
/// <param name="cookieAlias">The cookie alias.</param>
/// <returns></returns>
private static LanguageCultureItem InternalGetCookie(
LanguageCultureCollection myLanguagesCultureList, string cookieAlias)
{
if (HttpContext.Current != null && cookieAlias != null &&
HttpContext.Current.Request.Cookies[SwitcherCookiePrefix + cookieAlias] != null &&
HttpContext.Current.Request.Cookies[SwitcherCookiePrefix + cookieAlias].Value.Length > 0)
{
try
{
return
(myLanguagesCultureList.GetBestMatching(
new CultureInfo(
HttpContext.Current.Request.Cookies[SwitcherCookiePrefix + cookieAlias].Value)));
}
catch (ArgumentException)
{
// Maybe an invalid CultureInfo
}
}
return(null);
}
