/// <summary>
/// Parse a rfc 2822 header field with parameters
/// </summary>
/// <param name="field">field name</param>
/// <param name="fieldbody">field body to parse</param>
/// <returns>A <see cref="System.Collections.Specialized.StringDictionary" /> from the parsed field body</returns>
public static System.Collections.Specialized.StringDictionary parseHeaderFieldBody(System.String field, System.String fieldbody)
{
if (fieldbody == null)
{
return(null);
}
// FIXME: rewrite parseHeaderFieldBody to being regexp based.
fieldbody = MimeTools.uncommentString(fieldbody);
System.Collections.Specialized.StringDictionary fieldbodycol = new System.Collections.Specialized.StringDictionary();
System.String[] words = fieldbody.Split(new Char[] { ';' });
if (words.Length > 0)
{
fieldbodycol.Add(field.ToLower(), words[0].ToLower());
for (int i = 1; i < words.Length; i++)
{
System.String[] param = words[i].Trim(new Char[] { ' ', '\t' }).Split(new Char[] { '=' }, 2);
if (param.Length == 2)
{
param[0] = param[0].Trim(new Char[] { ' ', '\t' });
param[1] = param[1].Trim(new Char[] { ' ', '\t' });
if (param[1].StartsWith("\"") && !param[1].EndsWith("\""))
{
do
{
param[1] += ";" + words[++i];
} while (!words[i].EndsWith("\"") && i < words.Length);
}
fieldbodycol.Add(param[0], MimeTools.parserfc2047Header(param[1].TrimEnd(';').Trim('\"')));
}
}
}
return(fieldbodycol);
}
/// <summary>
/// Parse a rfc 2822 name-address specification. rfc 2822 section 3.4
/// </summary>
/// <param name="from">address</param>
/// <param name="part">1 is display-name; 2 is addr-spec</param>
/// <returns>the requested <see cref="System.String" /></returns>
public static System.String parseFrom(System.String from, int part)
{
int pos;
if (from == null || from.Length < 1)
{
return(System.String.Empty);
}
switch (part)
{
case 1:
pos = from.LastIndexOf('<');
pos = (pos < 0)?from.Length:pos;
from = from.Substring(0, pos).Trim();
from = MimeTools.parserfc2047Header(from);
return(from);
case 2:
pos = from.LastIndexOf('<') + 1;
return(from.Substring(pos, from.Length - pos).Trim(new char[] { '<', '>', ' ' }));
}
return(from);
}