/// <summary>
/// Determines which patches apply to a specified product and in what sequence. If
/// the product is installed, this method accounts for patches that have already been applied to
/// the product and accounts for obsolete and superceded patches.
/// </summary>
/// <param name="product">The product that is the target for the set of patches. This may be
/// either a ProductCode (GUID) of a product that is currently installed, or the path to a an
/// MSI file.</param>
/// <param name="patches">An array of strings specifying the patches to be checked. Each item
/// may be the path to an MSP file, the path an XML file, or just an XML blob.</param>
/// <param name="errorHandler">Callback to be invoked for each inapplicable patch, reporting the
/// reason the patch is not applicable. This value may be left null if that information is not
/// desired.</param>
/// <param name="userSid">Specifies a security identifier (SID) of a user. This parameter restricts
/// the context of enumeration for this user account. This parameter cannot be the special SID
/// strings s-1-1-0 (everyone) or s-1-5-18 (local system). If <paramref name="context"/> is set to
/// <see cref="UserContexts.None"/> or <see cref="UserContexts.Machine"/>, then
/// <paramref name="userSid"/> must be null. For the current user context, <paramref name="userSid"/>
/// can be null and <paramref name="context"/> can be set to <see cref="UserContexts.UserManaged"/>
/// or <see cref="UserContexts.UserUnmanaged"/>.</param>
/// <param name="context">Restricts the enumeration to per-user-unmanaged, per-user-managed,
/// or per-machine context, or (if referring to an MSI) to no system context at all. This
/// parameter can be <see cref="UserContexts.Machine"/>, <see cref="UserContexts.UserManaged"/>,
/// <see cref="UserContexts.UserUnmanaged"/>, or <see cref="UserContexts.None"/>.</param>
/// <returns>An array of selected patch strings from <paramref name="patches"/>, indicating
/// the set of applicable patches. The items are re-ordered to be in the best sequence.</returns>
/// <remarks><p>
/// If an item in <paramref name="patches"/> is a file path but does not end in .MSP or .XML,
/// it is assumed to be an MSP file.
/// </p><p>
/// Passing an InstallContext of None only analyzes the MSI file; it does not consider the
/// current state of the system. You cannot use InstallContext.None with a ProductCode GUID.
/// </p><p>
/// Win32 MSI APIs:
/// <a href="http://msdn.microsoft.com/library/en-us/msi/setup/msidetermineapplicablepatches.asp">MsiDetermineApplicablePatches</a>
/// <a href="http://msdn.microsoft.com/library/en-us/msi/setup/msideterminepatchsequence.asp">MsiDeterminePatchSequence</a>
/// </p></remarks>
public static IList <string> DetermineApplicablePatches(
string product,
string[] patches,
InapplicablePatchHandler errorHandler,
string userSid,
UserContexts context)
{
if (string.IsNullOrWhiteSpace(product))
{
throw new ArgumentNullException("product");
}
if (patches == null)
{
throw new ArgumentNullException("patches");
}
NativeMethods.MsiPatchSequenceData[] sequenceData = new NativeMethods.MsiPatchSequenceData[patches.Length];
for (int i = 0; i < patches.Length; i++)
{
if (string.IsNullOrWhiteSpace(patches[i]))
{
throw new ArgumentNullException("patches[" + i + "]");
}
sequenceData[i].szPatchData = patches[i];
sequenceData[i].ePatchDataType = GetPatchStringDataType(patches[i]);
sequenceData[i].dwOrder = -1;
sequenceData[i].dwStatus = 0;
}
uint ret;
if (context == UserContexts.None)
{
ret = NativeMethods.MsiDetermineApplicablePatches(product, (uint)sequenceData.Length, sequenceData);
}
else
{
ret = NativeMethods.MsiDeterminePatchSequence(product, userSid, context, (uint)sequenceData.Length, sequenceData);
}
if (errorHandler != null)
{
for (int i = 0; i < sequenceData.Length; i++)
{
if (sequenceData[i].dwOrder < 0 && sequenceData[i].dwStatus != 0)
{
errorHandler(sequenceData[i].szPatchData, InstallerException.ExceptionFromReturnCode(sequenceData[i].dwStatus));
}
}
}
if (ret != 0)
{
throw InstallerException.ExceptionFromReturnCode(ret);
}
IList <string> patchSeq = new List <string>(patches.Length);
for (int i = 0; i < sequenceData.Length; i++)
{
for (int j = 0; j < sequenceData.Length; j++)
{
if (sequenceData[j].dwOrder == i)
{
patchSeq.Add(sequenceData[j].szPatchData);
}
}
}
return(patchSeq);
}
/// <summary>
/// Determines which patches apply to a specified product and in what sequence. If
/// the product is installed, this method accounts for patches that have already been applied to
/// the product and accounts for obsolete and superceded patches.
/// </summary>
/// <param name="product">The product that is the target for the set of patches. This may be
/// either a ProductCode (GUID) of a product that is currently installed, or the path to a an
/// MSI file.</param>
/// <param name="patches">An array of strings specifying the patches to be checked. Each item
/// may be the path to an MSP file, the path an XML file, or just an XML blob.</param>
/// <param name="errorHandler">Callback to be invoked for each inapplicable patch, reporting the
/// reason the patch is not applicable. This value may be left null if that information is not
/// desired.</param>
/// <param name="userSid">Specifies a security identifier (SID) of a user. This parameter restricts
/// the context of enumeration for this user account. This parameter cannot be the special SID
/// strings s-1-1-0 (everyone) or s-1-5-18 (local system). If <paramref name="context"/> is set to
/// <see cref="UserContexts.None"/> or <see cref="UserContexts.Machine"/>, then
/// <paramref name="userSid"/> must be null. For the current user context, <paramref name="userSid"/>
/// can be null and <paramref name="context"/> can be set to <see cref="UserContexts.UserManaged"/>
/// or <see cref="UserContexts.UserUnmanaged"/>.</param>
/// <param name="context">Restricts the enumeration to per-user-unmanaged, per-user-managed,
/// or per-machine context, or (if referring to an MSI) to no system context at all. This
/// parameter can be <see cref="UserContexts.Machine"/>, <see cref="UserContexts.UserManaged"/>,
/// <see cref="UserContexts.UserUnmanaged"/>, or <see cref="UserContexts.None"/>.</param>
/// <returns>An array of selected patch strings from <paramref name="patches"/>, indicating
/// the set of applicable patches. The items are re-ordered to be in the best sequence.</returns>
/// <remarks><p>
/// If an item in <paramref name="patches"/> is a file path but does not end in .MSP or .XML,
/// it is assumed to be an MSP file.
/// </p><p>
/// Passing an InstallContext of None only analyzes the MSI file; it does not consider the
/// current state of the system. You cannot use InstallContext.None with a ProductCode GUID.
/// </p><p>
/// Win32 MSI APIs:
/// <a href="http://msdn.microsoft.com/library/en-us/msi/setup/msidetermineapplicablepatches.asp">MsiDetermineApplicablePatches</a>
/// <a href="http://msdn.microsoft.com/library/en-us/msi/setup/msideterminepatchsequence.asp">MsiDeterminePatchSequence</a>
/// </p></remarks>
public static IList<string> DetermineApplicablePatches(
string product,
string[] patches,
InapplicablePatchHandler errorHandler,
string userSid,
UserContexts context)
{
if (string.IsNullOrWhiteSpace(product))
{
throw new ArgumentNullException("product");
}
if (patches == null)
{
throw new ArgumentNullException("patches");
}
NativeMethods.MsiPatchSequenceData[] sequenceData = new NativeMethods.MsiPatchSequenceData[patches.Length];
for (int i = 0; i < patches.Length; i++)
{
if (string.IsNullOrWhiteSpace(patches[i]))
{
throw new ArgumentNullException("patches[" + i + "]");
}
sequenceData[i].szPatchData = patches[i];
sequenceData[i].ePatchDataType = GetPatchStringDataType(patches[i]);
sequenceData[i].dwOrder = -1;
sequenceData[i].dwStatus = 0;
}
uint ret;
if (context == UserContexts.None)
{
ret = NativeMethods.MsiDetermineApplicablePatches(product, (uint) sequenceData.Length, sequenceData);
}
else
{
ret = NativeMethods.MsiDeterminePatchSequence(product, userSid, context, (uint) sequenceData.Length, sequenceData);
}
if (errorHandler != null)
{
for (int i = 0; i < sequenceData.Length; i++)
{
if (sequenceData[i].dwOrder < 0 && sequenceData[i].dwStatus != 0)
{
errorHandler(sequenceData[i].szPatchData, InstallerException.ExceptionFromReturnCode(sequenceData[i].dwStatus));
}
}
}
if (ret != 0)
{
throw InstallerException.ExceptionFromReturnCode(ret);
}
IList<string> patchSeq = new List<string>(patches.Length);
for (int i = 0; i < sequenceData.Length; i++)
{
for (int j = 0; j < sequenceData.Length; j++)
{
if (sequenceData[j].dwOrder == i)
{
patchSeq.Add(sequenceData[j].szPatchData);
}
}
}
return patchSeq;
}
