英文:
Illegal Characters in FileStream when concatenated with variables
问题
我在尝试使用FileStream创建文件时遇到了问题，由于某种原因，当变量time以某种方式接收数据时，一切都正常，但如果我关闭程序然后再次打开它，并且该变量来自csv文件，我会得到这个错误：“System.ArgumentException: '路径中包含非法字符。' 我在pathSave变量上进行了MessageBox.Show，结果是正确的 "C:\Users\Felipe\AppData\Local\Temp\diskSTLQUZFTOV.vhd"，但我不知道为什么通过csv的方式显示不是这样。
private void FileEncrypt(string outFile, string password, string time)
{
byte[] salt = GenerateRandomSalt();
FileStream fsCrypt = new FileStream(outFile, FileMode.Create);
byte[] passwordBytes = Encoding.UTF8.GetBytes(password);
RijndaelManaged AES = new RijndaelManaged();
AES.KeySize = 256;
AES.BlockSize = 128;
AES.Padding = PaddingMode.PKCS7;
Rfc2898DeriveBytes key = new Rfc2898DeriveBytes(passwordBytes, salt, 50000);
AES.Key = key.GetBytes(AES.KeySize / 8);
AES.IV = key.GetBytes(AES.BlockSize / 8);
AES.Mode = CipherMode.CFB;
fsCrypt.Write(salt, 0, salt.Length);
CryptoStream cs = new CryptoStream(fsCrypt, AES.CreateEncryptor(), CryptoStreamMode.Write);
string pathSave = Path.GetTempPath() + "disk" + time + ".vhd";
MessageBox.Show(pathSave);
FileStream fsIn = new FileStream(pathSave, FileMode.Open);
byte[] buffer = new byte[1048576];
int read;
try
{
while ((read = fsIn.Read(buffer, 0, buffer.Length)) > 0)
{
Application.DoEvents();
cs.Write(buffer, 0, read);
}
fsIn.Close();
}
catch (Exception ex)
{
MessageBox.Show("Error: " + ex.Message, "Unmount Encryption - Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
cs.Close();
fsCrypt.Close();
}
}
英文:
I have a problem trying to create a file via FileStream, for some reason when the variable time receives the data in a way everything works fine, but if I close the program and open it again and that variable comes from a csv file I get this error : "System.ArgumentException: 'Illegal characters in path.' I did a MessageBox.Show on the pathSave variable and the result is correct "C:\Users\Felipe\AppData\Local\Temp\diskSTLQUZFTOV.vhd" I don't know why it's not showing this way via csv.
private void FileEncrypt(string outFile, string password, string time)
{
byte[] salt = GenerateRandomSalt();
FileStream fsCrypt = new FileStream(outFile, FileMode.Create);
byte[] passwordBytes = Encoding.UTF8.GetBytes(password);
RijndaelManaged AES = new RijndaelManaged();
AES.KeySize = 256;
AES.BlockSize = 128;
AES.Padding = PaddingMode.PKCS7;
Rfc2898DeriveBytes key = new Rfc2898DeriveBytes(passwordBytes, salt, 50000);
AES.Key = key.GetBytes(AES.KeySize / 8);
AES.IV = key.GetBytes(AES.BlockSize / 8);
AES.Mode = CipherMode.CFB;
fsCrypt.Write(salt, 0, salt.Length);
CryptoStream cs = new CryptoStream(fsCrypt, AES.CreateEncryptor(), CryptoStreamMode.Write);
string pathSave = Path.GetTempPath() + "disk" + time + ".vhd";
MessageBox.Show(pathSave);
FileStream fsIn = new FileStream(pathSave, FileMode.Open);
byte[] buffer = new byte[1048576];
int read;
try
{
while ((read = fsIn.Read(buffer, 0, buffer.Length)) > 0)
{
Application.DoEvents();
cs.Write(buffer, 0, read);
}
fsIn.Close();
}
catch (Exception ex)
{
MessageBox.Show("Error: " + ex.Message, "Unmount Encryption - Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
cs.Close();
fsCrypt.Close();
}
}
答案1
得分: 1
你可以在保存之前简单地替换路径中的任何无效字符，如下所示：
char[] invalidChars = Path.GetInvalidFileNameChars();
string correctedFormatTime = time;
foreach (char c in invalidChars)
{
correctedFormatTime = correctedFormatTime.Replace(c.ToString(),"");
}
string pathSave = Path.GetTempPath() + "disk" + sanitizedTime + ".vhd";
英文:
You can simply replace any invalid characters from the path before saving like this:
char[] invalidChars = Path.GetInvalidFileNameChars();
string correctedFormatTime = time;
foreach (char c in invalidChars)
{
correctedFormatTime = correctedFormatTime.Replace(c.ToString(),"");
}
string pathSave = Path.GetTempPath() + "disk" + sanitizedTime + ".vhd";
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论