/// <summary>
/// Adds a thumbnail
/// </summary>
/// <param name="img">The image to create the thumbnail from</param>
/// <returns>The MD5 of the thumbnail</returns>
public static string Add(Stream img, string origPath)
{
img.Seek(0, SeekOrigin.Begin);
string md5Hash;
using (var origIMG = Image.FromStream(img)) {
double ratio = Math.Min((double)ThumbnailWidth / origIMG.Width, (double)ThumbnailHeight / origIMG.Height);
using (var newBMP = new Bitmap((int)Math.Ceiling(origIMG.Width * ratio), (int)Math.Ceiling(origIMG.Height * ratio))) {
using (var graph = Graphics.FromImage(newBMP)) {
graph.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
graph.DrawImage(origIMG, 0, 0, (float)Math.Ceiling(origIMG.Width * ratio), (float)Math.Ceiling(origIMG.Height * ratio));
graph.Flush(System.Drawing.Drawing2D.FlushIntention.Sync);
using (var stream = new MemoryStream(1024 * 1024)) {
newBMP.Save(stream, System.Drawing.Imaging.ImageFormat.Jpeg);
stream.Flush();
byte [] bytes = stream.ToArray();
using (var hasher = new System.Security.Cryptography.MD5Cng())
md5Hash = BitConverter.ToString(hasher.ComputeHash(bytes)).Replace("-", "");
File.WriteAllBytes(Path.Combine(Program.Options.ThumbsPath, md5Hash), bytes);
thumbs.SetEntry(md5Hash, origPath);
bytes = null;
}
}
}
}
return(md5Hash);
}
//md5加密算法
public static string strToMd5(string sequence)
{
System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5Cng();
byte[] bytResult = md5.ComputeHash(System.Text.Encoding.GetEncoding("UTF-8").GetBytes(sequence));
//转换成字符串，32位
string strResult = BitConverter.ToString(bytResult).Replace("-", "");
return(strResult);
}
public Pepsin(System.Net.HttpListener listener)
{
m_listener = listener;
m_nonces = new Dictionary <string, string>();
m_realms = new Dictionary <string, string>();
m_userRealms = new Dictionary <string, string[]>();
m_users = new Dictionary <string, Password>();
m_MD5Encoder = new System.Security.Cryptography.MD5Cng();
}
internal static byte[] CalcMD5(string SpecFunc, string SpecName, string SpecDev, int RevMaj, int RevMin)
{
byte[] Md5Buffer = new byte[62];
System.Security.Cryptography.MD5Cng Calc = new System.Security.Cryptography.MD5Cng();
AddToBuffer(Md5Buffer, 0, 20, AllignTo20(SpecFunc));
AddToBuffer(Md5Buffer, 20, 20, AllignTo20(SpecName));
AddToBuffer(Md5Buffer, 40, 20, AllignTo20(SpecDev));
Md5Buffer[60] = (byte)(RevMaj + 0x30);
Md5Buffer[61] = (byte)(RevMin + 0x30);
return Calc.ComputeHash(Md5Buffer,0, 62);
}
public void DrawButton(RectangleF area, Graphics g, bool selected, Guid value)
{
float size = area.Height - 4;
float imageX = area.Width - area.Height + 2;
Bitmap[] images = new[] { JONAS, ALI, DANIEL, JUAN };
System.Security.Cryptography.MD5Cng hash = new System.Security.Cryptography.MD5Cng();
Bitmap image = images[hash.ComputeHash(value.ToByteArray())[0] & 3];
g.DrawImage(image, RectangleF.FromLTRB(area.Left + imageX, area.Top + 2, area.Right - 2, area.Bottom - 2));
TextRenderer.DrawText(g, m_parameter.GetName(value), Font, new Point((int)area.X + 2, (int)area.Y + ((int)area.Height - Font.Height) / 2), Color.White);
}
public static String Md5(String ch)
{
using (System.Security.Cryptography.MD5 sha1 = new System.Security.Cryptography.MD5Cng())
{
ASCIIEncoding asen = new ASCIIEncoding();
var hash = sha1.ComputeHash(asen.GetBytes(ch));
var s = new StringBuilder();
foreach (byte b in hash)
s.Append(b.ToString("x2").ToLower());
return s.ToString() ;
}
}
