// 从注册表和 library.xml 文件中获得实例信息
// parameters:
//
// return:
// -1 出错
// 0 实例没有找到
// 1 成功
public static int GetLibraryInstanceInfo(
string strInstanceNameParam,
out LibraryInstanceInfo info,
out string strError)
{
strError = "";
info = new LibraryInstanceInfo();
string strInstanceName = "";
string strDataDir = "";
string strCertificatSN = "";
string[] existing_urls = null;
for (int i = 0; ; i++)
{
bool bRet = InstallHelper.GetInstanceInfo("dp2Library",
i,
out strInstanceName,
out strDataDir,
out existing_urls,
out strCertificatSN);
if (bRet == false)
{
strError = "实例 '" + strInstanceNameParam + "' 不存在";
return(0);
}
if (strInstanceName == strInstanceNameParam)
{
info.InstanceName = strInstanceName;
info.Urls = existing_urls;
info.DataDir = strDataDir;
break;
}
}
string strFileName = Path.Combine(strDataDir, "library.xml");
if (File.Exists(strFileName) == false)
{
strError = "实例 '" + strInstanceNameParam + "' 的 library.xml 文件不存在";
return(0);
}
XmlDocument dom = new XmlDocument();
try
{
dom.Load(strFileName);
}
catch (Exception ex)
{
strError = "文件 '" + strFileName + "' 装载到 XMLDOM 时出错: " + ex.Message;
return(-1);
}
if (dom.DocumentElement == null)
{
strError = "文件 '" + strFileName + "' 格式不正确，缺乏根元素";
return(-1);
}
info.Version = LibraryServerUtil.GetLibraryXmlVersion(dom);
// supervisor
// XmlElement nodeSupervisor = dom.DocumentElement.SelectSingleNode("accounts/account[@type='']") as XmlElement;
XmlElement nodeSupervisor = null;
// 找到第一个具备 managedatabase 权限用户
XmlNodeList nodes = dom.DocumentElement.SelectNodes("accounts/account[@type='']");
if (nodes.Count > 0)
{
foreach (XmlElement account in nodes)
{
string strRights = account.GetAttribute("rights");
if (StringUtil.IsInList("managedatabase", strRights) == true)
{
nodeSupervisor = account;
break;
}
}
}
if (nodeSupervisor != null)
{
info.SupervisorUserName = nodeSupervisor.GetAttribute("name");
info.SupervisorPassword = nodeSupervisor.GetAttribute("password");
if (info.Version <= 2.0)
{
// library.xml 2.00 及以前的做法
try
{
info.SupervisorPassword = Cryptography.Decrypt(info.SupervisorPassword, "dp2circulationpassword");
}
catch
{
strError = "<account password='******' /> 中的密码不正确";
return(-1);
}
// 得到 supervisor 密码的明文
}
}
string strValue = dom.DocumentElement.GetAttribute("_initialDatabase");
if (DomUtil.IsBooleanTrue(strValue, false) == true)
{
info.InitialDatabase = true;
}
else
{
info.InitialDatabase = false;
}
return(1);
}
// 从注册表和 library.xml 文件中获得实例信息
// parameters:
//
// return:
// -1 出错
// 0 实例没有找到
// 1 成功
public static int GetLibraryInstanceInfo(
string strInstanceNameParam,
out LibraryInstanceInfo info,
out string strError)
{
strError = "";
info = new LibraryInstanceInfo();
string strInstanceName = "";
string strDataDir = "";
string strCertificatSN = "";
string[] existing_urls = null;
for (int i = 0; ; i++)
{
bool bRet = InstallHelper.GetInstanceInfo("dp2Library",
i,
out strInstanceName,
out strDataDir,
out existing_urls,
out strCertificatSN);
if (bRet == false)
{
strError = "实例 '" + strInstanceNameParam + "' 不存在";
return 0;
}
if (strInstanceName == strInstanceNameParam)
{
info.InstanceName = strInstanceName;
info.Urls = existing_urls;
info.DataDir = strDataDir;
break;
}
}
string strFileName = Path.Combine(strDataDir, "library.xml");
if (File.Exists(strFileName) == false)
{
strError = "实例 '" + strInstanceNameParam + "' 的 library.xml 文件不存在";
return 0;
}
XmlDocument dom = new XmlDocument();
try
{
dom.Load(strFileName);
}
catch (Exception ex)
{
strError = "文件 '" + strFileName + "' 装载到 XMLDOM 时出错: " + ex.Message;
return -1;
}
if (dom.DocumentElement == null)
{
strError = "文件 '" + strFileName + "' 格式不正确，缺乏根元素";
return -1;
}
info.Version = LibraryServerUtil.GetLibraryXmlVersion(dom);
// supervisor
// XmlElement nodeSupervisor = dom.DocumentElement.SelectSingleNode("accounts/account[@type='']") as XmlElement;
XmlElement nodeSupervisor = null;
// 找到第一个具备 managedatabase 权限用户
XmlNodeList nodes = dom.DocumentElement.SelectNodes("accounts/account[@type='']");
if (nodes.Count > 0)
{
foreach (XmlElement account in nodes)
{
string strRights = account.GetAttribute("rights");
if (StringUtil.IsInList("managedatabase", strRights) == true)
{
nodeSupervisor = account;
break;
}
}
}
if (nodeSupervisor != null)
{
info.SupervisorUserName = nodeSupervisor.GetAttribute("name");
info.SupervisorPassword = nodeSupervisor.GetAttribute("password");
if (info.Version <= 2.0)
{
// library.xml 2.00 及以前的做法
try
{
info.SupervisorPassword = Cryptography.Decrypt(info.SupervisorPassword, "dp2circulationpassword");
}
catch
{
strError = "<account password='******' /> 中的密码不正确";
return -1;
}
// 得到 supervisor 密码的明文
}
}
string strValue = dom.DocumentElement.GetAttribute("_initialDatabase");
if (DomUtil.IsBooleanTrue(strValue, false) == true)
info.InitialDatabase = true;
else
info.InitialDatabase = false;
return 1;
}
// 要求操作者用 supervisor 账号登录一次。以便后续进行各种重要操作。
// 只需要 library.xml 即可，不需要 dp2library 在运行中。
// return:
// -2 实例没有找到
// -1 出错
// 0 放弃验证
// 1 成功
public static int LibrarySupervisorLogin(IWin32Window owner,
string strInstanceName,
string strComment,
out string strError)
{
strError = "";
LibraryInstanceInfo info = null;
// return:
// -1 出错
// 0 实例没有找到
// 1 成功
int nRet = GetLibraryInstanceInfo(
strInstanceName,
out info,
out strError);
if (nRet == -1)
{
return(-1);
}
if (nRet == 0)
{
strError = "实例 '" + strInstanceName + "' 没有找到";
return(-2);
}
if (string.IsNullOrEmpty(info.SupervisorUserName) == true)
{
// TODO: 此时是否可以不用验证了呢?
strError = "实例 '" + strInstanceName + "' 的账户中，没有找到具有 managedatabase 权限的管理员账户，因此无法验证操作者身份";
return(-1);
}
ConfirmSupervisorDialog dlg = new ConfirmSupervisorDialog();
GuiUtil.AutoSetDefaultFont(dlg);
dlg.Comment = strComment;
dlg.ServerUrl = "实例 '" + strInstanceName + "'";
dlg.UserName = info.SupervisorUserName;
dlg.StartPosition = FormStartPosition.CenterScreen;
REDO_LOGIN:
dlg.ShowDialog(owner);
if (dlg.DialogResult == DialogResult.Cancel)
{
return(0);
}
if (info.Version <= 2.0)
{
// 以前的做法
if (dlg.Password != info.SupervisorPassword)
{
MessageBox.Show(owner, "密码不正确。请重新输入密码");
goto REDO_LOGIN;
}
}
else
{
// 新的做法
nRet = LibraryServerUtil.MatchUserPassword(dlg.Password,
info.SupervisorPassword,
out strError);
if (nRet == -1)
{
strError = "MatchUserPassword() error: " + strError;
return(-1);
}
Debug.Assert(nRet == 0 || nRet == 1, "");
if (nRet == 1)
{
MessageBox.Show(owner, "密码不正确。请重新输入密码");
goto REDO_LOGIN;
}
}
return(1);
}
