/// <summary>
/// see if any patches are missing; is there a direct line between FCurrentlyInstalledVersion and FLatestAvailablePatch?
/// </summary>
/// <returns>return a list of all patches that should be applied. empty list if there is a problem</returns>
public SortedList CheckPatchesConsistent(SortedList AOrderedListOfAllPatches)
{
SortedList ResultPatchList = new SortedList();
TFileVersionInfo testPatchVersion;
// get the latest patch that is available
FLatestAvailablePatch = new TFileVersionInfo(FCurrentlyInstalledVersion);
foreach (string patch in AOrderedListOfAllPatches.GetValueList())
{
testPatchVersion = TPatchFileVersionInfo.GetLatestPatchVersionFromDiffZipName(patch);
if (testPatchVersion.Compare(FLatestAvailablePatch) > 0)
{
FLatestAvailablePatch = testPatchVersion;
}
}
// drop unnecessary patch files
// ie. patch files leading to the same version, eg. 2.2.11-1 and 2.2.12-2 to 2.2.12-3
// we only want the biggest step
testPatchVersion = new TFileVersionInfo(FCurrentlyInstalledVersion);
bool patchesAvailable = true;
while (patchesAvailable)
{
StringCollection applyingPatches = new StringCollection();
foreach (string patch in AOrderedListOfAllPatches.GetValueList())
{
if (TPatchFileVersionInfo.PatchApplies(testPatchVersion, patch))
{
applyingPatches.Add(patch);
}
}
patchesAvailable = (applyingPatches.Count > 0);
if (applyingPatches.Count > 0)
{
// see which of the applying patches takes us further
string highestPatch = applyingPatches[0];
TFileVersionInfo highestPatchVersion = TPatchFileVersionInfo.GetLatestPatchVersionFromDiffZipName(highestPatch);
foreach (string patch in applyingPatches)
{
if (TPatchFileVersionInfo.GetLatestPatchVersionFromDiffZipName(patch).Compare(highestPatchVersion) > 0)
{
highestPatch = patch;
highestPatchVersion = TPatchFileVersionInfo.GetLatestPatchVersionFromDiffZipName(highestPatch);
}
}
ResultPatchList.Add(highestPatch, highestPatch);
testPatchVersion = highestPatchVersion;
}
}
if (FLatestAvailablePatch.Compare(testPatchVersion) != 0)
{
// check for a generic patch file, starting from version 0.0.99.99
foreach (string patch in AOrderedListOfAllPatches.GetValueList())
{
if (patch.Contains("0.0.99.99"))
{
testPatchVersion = TPatchFileVersionInfo.GetLatestPatchVersionFromDiffZipName(patch);
ResultPatchList.Clear();
ResultPatchList.Add(patch, patch);
}
}
}
if (FLatestAvailablePatch.Compare(testPatchVersion) != 0)
{
TLogging.Log("missing patchfile from version " + testPatchVersion.ToString() + " to " + FLatestAvailablePatch.ToString());
return(new SortedList());
}
return(ResultPatchList);
}
/// <summary>
/// check whether there is a patch available; if this is a remote version, try to download a patch from the server this will also get the version of the currently installed code, and the list of patches that can be installed, in local
/// variables
/// </summary>
/// <param name="AShowStatus">Set to true to show status messages as a MessageBox
/// if there is a problem, or to false to have them returned in
/// <paramref name="AStatusMessage" /></param>.
/// <param name="AStatusMessage">A Status Message in case there is a problem AND
/// <paramref name="AShowStatus" /> is false.</param>
public Boolean CheckForRecentPatch(bool AShowStatus, out string AStatusMessage)
{
string localname;
TFileVersionInfo fileStartVersion;
TFileVersionInfo filePatchVersion;
string directoryListing;
string searchPattern;
string filesignature;
AStatusMessage = "";
FListOfNewPatches = new SortedList();
// first get the version of the currently installed binaries
// read from version.txt in the bin directory; it contains the currently installed version in RPM style (e.g. 3.0.0-14)
if (!File.Exists(FBinPath + Path.DirectorySeparatorChar + "version.txt"))
{
throw new Exception(String.Format("Cannot search for new patch, since I cannot find file {0}", FBinPath +
Path.DirectorySeparatorChar + "version.txt"));
}
StreamReader srVersion = new StreamReader(FBinPath + Path.DirectorySeparatorChar + "version.txt");
FCurrentlyInstalledVersion = new TFileVersionInfo(srVersion.ReadLine());
srVersion.Close();
if (FRemotePatchesPath.StartsWith("http://") || FRemotePatchesPath.StartsWith("https://"))
{
directoryListing = THTTPUtils.ReadWebsite(FRemotePatchesPath);
if (directoryListing == null)
{
if (AShowStatus)
{
MessageBox.Show(String.Format(StrProblemConnecting, FRemotePatchesPath),
StrProblemConnectingTitle);
}
else
{
AStatusMessage = String.Format(StrProblemConnecting, FRemotePatchesPath);
}
return(false);
}
// find all the files names that match the pattern
// eg <a href="Patch2.2.7-2_2.2.8-0.zip">
searchPattern = "<a href=\"";
while (directoryListing.IndexOf(searchPattern) != -1)
{
string filename = directoryListing.Substring(
directoryListing.IndexOf(searchPattern) + searchPattern.Length,
directoryListing.Substring(
directoryListing.IndexOf(searchPattern) + searchPattern.Length).IndexOf('"'));
directoryListing = directoryListing.Substring(directoryListing.IndexOf(searchPattern) + searchPattern.Length);
// signature e.g: gr1100o.r">gr1100o.r</a> 14-Oct-2008 13:11 153K
filesignature = directoryListing.Substring(0, directoryListing.IndexOf("\n"));
if (filename.ToLower().StartsWith("patch") && filename.ToLower().EndsWith(".zip"))
{
filePatchVersion = TPatchFileVersionInfo.GetLatestPatchVersionFromDiffZipName(filename);
if ((filePatchVersion.Compare(FCurrentlyInstalledVersion) > 0) &&
(!System.IO.File.Exists(FPatchesPath + Path.DirectorySeparatorChar + Path.GetFileName(filename))))
{
string LocalName = FPatchesPath + Path.DirectorySeparatorChar + Path.GetFileName(filename);
FListOfNewPatches.Add(LocalName, LocalName);
}
}
else if (filename.Contains("Setup") && filename.EndsWith(".exe"))
{
// ignore setup executable
}
else if (filename.ToLower().EndsWith(".dll") ||
filename.ToLower().EndsWith(".exe"))
{
// download .dll/.exe files from the netpatches directory if there is no file with same date already
if (System.IO.File.Exists(FPatchesPath + Path.DirectorySeparatorChar + filename + ".signature"))
{
StreamReader sr = new StreamReader(FPatchesPath + Path.DirectorySeparatorChar + filename + ".signature");
if (sr.ReadLine().Trim() == filesignature.Trim())
{
if (System.IO.File.Exists(FPatchesPath + Path.DirectorySeparatorChar + filename + ".old") &&
!System.IO.File.Exists(FPatchesPath + Path.DirectorySeparatorChar + filename))
{
// the file has been renamed by the patch, and needs to be reinstated
System.IO.File.Move(FPatchesPath + Path.DirectorySeparatorChar + filename + ".old",
FPatchesPath + Path.DirectorySeparatorChar + filename);
}
filename = "ALREADY_LATEST";
}
sr.Close();
}
if (filename != "ALREADY_LATEST")
{
string localFile = FPatchesPath + Path.DirectorySeparatorChar + filename;
if (filename.ToLower().EndsWith(".dll") ||
filename.ToLower().EndsWith(".exe"))
{
localFile = FBinPath + Path.DirectorySeparatorChar + filename;
// make backup copy of .dll/.exe if there does not already one exist; don't overwrite .orig files
if (!File.Exists(localFile + ".orig"))
{
System.IO.File.Move(localFile, localFile + ".orig");
}
}
THTTPUtils.DownloadFile(FRemotePatchesPath + "/" + filename, localFile);
StreamWriter sw = new StreamWriter(FPatchesPath + Path.DirectorySeparatorChar + filename + ".signature");
sw.WriteLine(filesignature);
sw.Close();
}
}
}
// todo: remove local .r files if they are not in the net-patches directory
// todo: the same for *.dll and *.exe; careful: only create an .orig copy once.
// todo: somehow revert to .orig dll/exe file if there is no patched file in net-patches on the server?
// todo: patch has to remove dll and exe from net-patches
// todo: on the server side as well; check net-patches
}
else if ((FRemotePatchesPath.Length > 0) && (System.IO.Directory.Exists(FRemotePatchesPath)))
{
// check if there are newer patches on the remote server
string[] files = System.IO.Directory.GetFiles(FRemotePatchesPath, "Patch*.zip");
foreach (string filename in files)
{
filePatchVersion = TPatchFileVersionInfo.GetLatestPatchVersionFromDiffZipName(filename);
if ((filePatchVersion.Compare(FCurrentlyInstalledVersion) > 0) &&
((!System.IO.File.Exists(FPatchesPath + Path.DirectorySeparatorChar + Path.GetFileName(filename)))))
{
localname = FPatchesPath + Path.DirectorySeparatorChar + Path.GetFileName(filename);
FListOfNewPatches.Add(localname, localname);
}
}
}
// create a list of patches that should be installed
string[] patchfiles = System.IO.Directory.GetFiles(FPatchesPath, "Patch*.zip");
foreach (string filename in patchfiles)
{
fileStartVersion = TPatchFileVersionInfo.GetStartVersionFromDiffZipName(filename);
filePatchVersion = TPatchFileVersionInfo.GetLatestPatchVersionFromDiffZipName(filename);
if ((fileStartVersion.Compare(FCurrentlyInstalledVersion) >= 0) &&
(filePatchVersion.Compare(FCurrentlyInstalledVersion) > 0))
{
FListOfNewPatches.Add(filename, filename);
}
}
// see if any patches are missing; is there a direct line between FCurrentlyInstalledVersion and FLatestAvailablePatch?
FListOfNewPatches = CheckPatchesConsistent(FListOfNewPatches);
return(FListOfNewPatches.Count > 0);
}
/// <summary>
/// would this patch file apply to the current installed version
/// </summary>
/// <param name="APatchZipFile"></param>
/// <returns></returns>
public Boolean PatchApplies(String APatchZipFile)
{
return(TPatchFileVersionInfo.PatchApplies(this, APatchZipFile));
}
