// tries to parse all document properties, getting authorization if we can, but otherwise
// gracefully falls back to just getting public properties
private void collectDocumentProperties(string file)
{
byte[] fileLicense;
SafeInformationProtectionKeyHandle keyHandle;
fileLicense = SafeFileApiNativeMethods.IpcfGetSerializedLicenseFromFile(file);
keyHandle = null;
try
{
keyHandle = SafeNativeMethods.IpcGetKey(fileLicense, false, false, true, this);
}
catch
{
}
propertyParser = new RmsPropertyParser(fileLicense, keyHandle);
}
/// <summary>
/// Load pdf file by stream
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
private bool LoadFileByStream(string fileName)
{
bool isrmsProtect = true;
Stream stream = null;
byte[] license = null;
string rmsUserPassword = string.Empty;
if (rmsUserpEncrypt)
{
try
{
//RMS化PDFファイルから、RMSライセンス情報と、暗号化された本文情報を分割する
//RMS署名情報から、RMSサーバー情報を抽出する
//RMSサーバーでの認証
//RMSサーバーからRMSライセンスの取得
license = SafeFileApiNativeMethods.IpcfGetSerializedLicenseFromFile(fileName);
}
catch (Exception ex)
{
isrmsProtect = false;
}
}
if (isrmsProtect && rmsUserpEncrypt)
{
try
{
rmsUserPassword = GenerateRandom(32);
//RMSライセンスから、復号鍵の抽出
SafeInformationProtectionKeyHandle keyHandle = SafeNativeMethods.IpcGetKey(license, false, false, true, this);
//RMSライセンスから、権利リストの抽出
//Collection<UserRights> userRights = new Collection<UserRights>();
//userRights = SafeNativeMethods.IpcGetSerializedLicenseUserRightsList(license, keyHandle);
bool accessGranted = SafeNativeMethods.IpcAccessCheck(keyHandle, "VIEW");
//本文情報を復号鍵で、復号
tempFile = GenerateRandom(10);
//一時フォルダ作成 add kondo
System.IO.Directory.CreateDirectory(Path.GetTempPath() + @"PDFViewer\");
tempFile = Path.GetTempPath() + @"PDFViewer\" + tempFile;
Stream outPutRmsStream = new FileStream(tempFile, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
stream = new FileStream(fileName, FileMode.Open);
if (accessGranted)
{
SafeFileApiNativeMethods.IpcfDecryptFileStream(stream, fileName,
SafeFileApiNativeMethods.DecryptFlags.IPCF_DF_FLAG_DEFAULT, false,
false, false, this, ref outPutRmsStream);
}
outPutRmsStream.Close();
outPutRmsStream.Dispose();
PdfReader reader = new PdfReader(tempFile);
outPutStream = new FileStream(tempFile + ".tmp", FileMode.Create, FileAccess.ReadWrite, FileShare.None);
PdfEncryptor.Encrypt(reader, outPutStream, false, rmsUserPassword, "", 0);
rmsUserpEncrypt = false;
reader.Close();
reader.Dispose();
File.Delete(tempFile);
}
catch (InformationProtectionException ex)
{
//DirectoryDelete MSIPC
DeleteDirectorySelect(true);
isrmsProtect = false;
MessageBox.Show(ex.Message, "Message", MessageBoxButtons.OK);
}
catch (Exception ex)
{
isrmsProtect = false;
}
}
try
{
if (isrmsProtect)
{
pdfDoc.LoadPDF(tempFile + ".tmp");
}
else
{
pdfDoc.LoadPDF(fileName);
}
if (stream != null)
{
stream.Close();
stream.Dispose();
}
return(true);
}
catch (System.Security.SecurityException sex)
{
if (stream != null)
{
stream.Close();
stream.Dispose();
}
if (pdfDoc != null)
{
pdfDoc.Dispose();
pdfDoc = null;
}
pdfDoc = new PDFWrapper();
if (!rmsUserpEncrypt)
{
pdfDoc.UserPassword = rmsUserPassword;
}
else
{
String password = Interaction.InputBox("Please enter the document password:"******"Document Password", "");
if (password.Equals(string.Empty))
{
return(false);
}
pdfDoc.UserPassword = password;
}
return(LoadFileByStream(fileName));
}
catch (Exception ex)
{
//MessageBox.Show(ex.ToString());
return(false);
}
}
public bool ReadEncryptedContent(string inputFile, out string encryptContent)
{
SafeInformationProtectionKeyHandle _keyHandle = null;
// RMSServerURL _rmsURLs;
TemplateInfo _template;
Collection <UserRights> _rights;
Term _term;
byte[] _license;
int i = 1;
int j = 1;
int days;
string _info = "";
_info += "=============== 擷取檔案【" + inputFile.Trim() + "】資訊 ===============\r\n";
_info += "加密狀態：已加密\r\n";
_license = SafeFileApiNativeMethods.IpcfGetSerializedLicenseFromFile(inputFile.Trim()); // 自加密檔案取得憑證資訊
_keyHandle = SafeNativeMethods.IpcGetKey(_license, false, false, true, this); // // 從憑證中取得加密金鑰之處理指標(非金鑰內容)， 只是它的 pointer。
_info += "憑證作者: " + SafeNativeMethods.IpcGetSerializedLicenseOwner(_license) + "\r\n"; // 自加密憑證中 取得憑證擁有者資訊
_info += "加密內容 ID: " + SafeNativeMethods.IpcGetSerializedLicenseContentId(_license, _keyHandle) + "\r\n"; // 自加密憑證中取得憑證內容 ID
_info += "金鑰(Key)擁有者: " + SafeNativeMethods.IpcGetKeyUserDisplayName(_keyHandle) + "\r\n"; // 取得加密作者資訊
_term = SafeNativeMethods.IpcGetSerializedLicenseValidityTime(_license, _keyHandle); // 取得此範本的有效期
if (_term.From.Year != 1601)
{
_info += "\t 有效期： 自 " + _term?.From.ToString() + " 開始，可使用" +
_term?.Duration.TotalDays.ToString() + " 天\r\n";
}
else
{
_info += "\t 有效期： 可永久使用。\r\n";
}
try
{
days = (int)SafeNativeMethods.IpcGetSerializedLicenseIntervalTime(_license, _keyHandle);
}
catch
{
days = -1;
}
_info += "\t 更新頻率： " + ((days != -1) ? ("每 " + days.ToString() + "天更新") : ("【未設定】")) + "\r\n";
try
{
_template = SafeNativeMethods.IpcGetSerializedLicenseDescriptor(_license, _keyHandle, null); // 得憑證的各項敘述內容
_info += "權限原則範本資訊(Template Info)：\r\n";
_info += "\t 權限資訊來自範本: " + _template.FromTemplate + "\r\n";
_info += "\t 範本代號: " + _template.TemplateId + "\r\n";
_info += "\t 範本名稱: " + _template.Name + "\r\n";
_info += "\t 範本發行者(RMS Server): " + _template.IssuerDisplayName + "\r\n";
_info += "\t 範本說明：" + _template.Description + "\r\n";
}
catch
{
_info += "權限原則範本資訊(Template Info)：無 (此檔案由使用者自定之權限原則所加密)\r\n";
}
_rights = SafeNativeMethods.IpcGetSerializedLicenseUserRightsList(_license, _keyHandle); // 取得序列化憑證中的使用者權限內容
_info += "\t 權限列表：\r\n\t\t 授權人數：" + _rights.Count.ToString() + " 人\r\n";
foreach (var u in _rights)
{
_info += "\t\t(" + j.ToString() + ") " + u.UserId + "\r\n";
j++;
_info += "\t\t 權限：";
foreach (var r in u.Rights)
{
_info += r + ", ";
i++;
if (i > 6)
{
_info += "\r\n\t\t";
i = 1;
}
}
i = 1;
_info = _info.Substring(0, (_info.Length - 1));
_info += "\r\n";
}
_keyHandle.Dispose();
_info += "==================================================\r\n";
encryptContent = _info;
return(true);
}
/// <summary>
/// Load pdf file
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
private bool LoadFile(string fileName)
{
bool isrmsProtect = true;
byte[] license = null;
try
{
//RMS化PDFファイルから、RMSライセンス情報と、暗号化された本文情報を分割する
//RMS署名情報から、RMSサーバー情報を抽出する
//RMSサーバーでの認証
//RMSサーバーからRMSライセンスの取得
license = SafeFileApiNativeMethods.IpcfGetSerializedLicenseFromFile(fileName);
}
catch (Exception ex)
{
isrmsProtect = false;
}
if (isrmsProtect)
{
try
{
//SymmetricKeyCredential symmkey = new SymmetricKeyCredential();
//symmkey.AppPrincipalId = "0C5BDABD-CF4D-4FBB-BF4A-DD62BCF7E976";
//symmkey.Base64Key = "P@ssw0rd";
//symmkey.BposTenantId = "*****@*****.**";
SymmetricKeyCredential symmkey = null;
//RMSライセンスから、復号鍵の抽出
SafeInformationProtectionKeyHandle keyHandle = SafeNativeMethods.IpcGetKey(license, false, false, true, this);
//symmkey = (SymmetricKeyCredential)keyHandle;
//RMSライセンスから、権利リストの抽出
//Collection<UserRights> userRights = new Collection<UserRights>();
//userRights = SafeNativeMethods.IpcGetSerializedLicenseUserRightsList(license, keyHandle);
bool accessGranted = SafeNativeMethods.IpcAccessCheck(keyHandle, "VIEW");
if (accessGranted)
{
SafeFileApiNativeMethods.IpcfDecryptFile(fileName,
SafeFileApiNativeMethods.DecryptFlags.IPCF_DF_FLAG_DEFAULT,
false,
false,
true,
this,
symmkey);
}
//使用権限が正しく設定されていません
//ConnectionInfo connectionInfo = SafeNativeMethods.IpcGetSerializedLicenseConnectionInfo(license);
//System.Collections.ObjectModel.Collection<TemplateIssuer> templateIssuerList = SafeNativeMethods.IpcGetTemplateIssuerList(connectionInfo, false, false, false, false, this, symmkey);
//TemplateIssuer templateIssuer = templateIssuerList[0];
//SafeInformationProtectionLicenseHandle licenseHandle = SafeNativeMethods.IpcCreateLicenseFromScratch(templateIssuer);
//SafeFileApiNativeMethods.IpcfEncryptFile(fileName, licenseHandle, SafeFileApiNativeMethods.EncryptFlags.IPCF_EF_FLAG_DEFAULT, false, false, false, this, symmkey);
//テンプレートは管理者によって作成されていません
//TemplateInfo templateInfo = SafeNativeMethods.IpcGetSerializedLicenseDescriptor(license, keyHandle, System.Globalization.CultureInfo.CurrentCulture);
//SafeFileApiNativeMethods.IpcfEncryptFile(fileName, templateInfo.TemplateId, SafeFileApiNativeMethods.EncryptFlags.IPCF_EF_FLAG_DEFAULT, false, false, true, this, null);
}
catch (InformationProtectionException ex)
{
isrmsProtect = false;
MessageBox.Show(ex.Message, "Message", MessageBoxButtons.OK);
}
catch (Exception ex)
{
isrmsProtect = false;
}
}
try
{
pdfDoc.LoadPDF(fileName);
return(true);
}
catch (System.Security.SecurityException sex)
{
String password = Interaction.InputBox("Please enter the document password:"******"Document Password", "");
if (password.Equals(string.Empty))
{
return(false);
}
if (pdfDoc != null)
{
pdfDoc.Dispose();
pdfDoc = null;
}
pdfDoc = new PDFWrapper();
pdfDoc.UserPassword = password;
return(LoadFile(fileName));
}
catch (Exception ex)
{
return(false);
}
}