[Serializable]

class SendDataStruct {

public string hash, name, data, encode;

public SendDataStruct() {

hash = "";

name = "";

data = "";

encode = "ascii";

}

public SendDataStruct(string hash, string name, string data, string encode) {

this.hash = hash;

this.name = name;

this.data = data;

this.encode = encode;

}

}

[Serializable]

class SendDataStorage {

public List<SendDataStruct> dataList = new List<SendDataStruct>();

public string file_name;

public override string ToString() {

JsonSerializerSettings settings = new JsonSerializerSettings();

settings.Formatting = Formatting.Indented;

return JsonConvert.SerializeObject(this, settings);

}

public int IndexOf(string hash) {

for (int i = 0; i < dataList.Count; i++) {

SendDataStruct sd = dataList[i];

if (sd.hash == hash)

return i;

}

return -1;

}

public static SendDataStorage FromString(string json, string name) {

DataContractJsonSerializer deseralizer = new DataContractJsonSerializer(typeof(SendDataStorage));

try {

using (var ms = new MemoryStream(Encoding.UTF8.GetBytes(json))) {

SendDataStorage st = (SendDataStorage)deseralizer.ReadObject(ms);

st.file_name = name;

return st;

}

} catch {

} finally {

}

return null;

}

public static SendDataStorage Load(string name = "") {

if (name == "")

name = ".jd";

string folder = ".\\conf\\";

Directory.CreateDirectory(folder);

string path = folder + name;

FileStream fs = null;

try {

fs = new FileStream(path, FileMode.Open);

//防止文件太大（16M）

if (fs.Length > 0x1000000) {

fs.Close();

return null;

}

byte[] data = new byte[fs.Length];

fs.Seek(0, SeekOrigin.Begin);

fs.Read(data, 0, data.Length);

string js = System.Text.Encoding.UTF8.GetString(data);

fs.Close();

return FromString(js, name);

} catch (IOException e) {

Console.WriteLine(e.ToString());

}

return null;

}

public void Save() {

string folder = ".\\conf\\";

Directory.CreateDirectory(folder);

string path = folder + file_name;

FileStream fs = null;

try {

fs = new FileStream(path, FileMode.Create, FileAccess.Write);

string str = this.ToString();

byte[] data = System.Text.Encoding.UTF8.GetBytes(str);

fs.Write(data, 0, data.Length);

fs.Close();

} catch {

if (fs != null)

fs.Close();

} finally {

}

}

}