/// <summary>
/// 文字コードを取得する
/// </summary>
/// <param name="mailHeader">メールヘッダ</param>
/// <returns>文字コード</returns>
public static string ParseEncoding(string mailHeader)
{
Pop3 pop = new Pop3();
// メールヘッダから文字コード文字列を抜き出す
string codeName = pop.GetHeaderField("Content-Type:", mailHeader);
codeName = codeName.Replace("\"", "");
string[] arrayName = codeName.Split('=');
codeName = arrayName[1];
return(codeName);
}
/// <summary>
/// 重要度取得
/// </summary>
/// <param name="header">ヘッダ</param>
/// <returns>重要度(urgent/normal/non-urgent)</returns>
public static string Parse(string header)
{
string _priority = "normal";
string priority = "";
var pop = new Pop3();
// ヘッダにX-Priorityがあるとき
if (header.Contains("X-Priority:"))
{
priority = pop.GetHeaderField("X-Priority:", header);
if (priority == "1" || priority == "2")
{
_priority = Urgent;
}
else if (priority == "3")
{
_priority = Normal;
}
else if (priority == "4" || priority == "5")
{
_priority = NonUrgent;
}
}
else if (header.Contains("X-MsMail-Priotiry:"))
{
priority = pop.GetHeaderField("X-MsMail-Priotiry:", header);
if (priority.ToLower() == "High")
{
_priority = Urgent;
}
else if (priority.ToLower() == "Normal")
{
_priority = Normal;
}
else if (priority.ToLower() == "low")
{
_priority = NonUrgent;
}
}
else if (header.Contains("Importance:"))
{
priority = pop.GetHeaderField("Importance:", header);
if (priority.ToLower() == "high")
{
_priority = Urgent;
}
else if (priority.ToLower() == "normal")
{
_priority = Normal;
}
else if (priority.ToLower() == "low")
{
_priority = NonUrgent;
}
}
else if (header.Contains("Priority:"))
{
priority = pop.GetHeaderField("Priority:", header);
// 重要度の文字列の長さが0以上のときは取得した重要度を入れる
if (priority.Length > 0)
{
_priority = priority;
}
}
return(_priority);
}
