private bool PatchUsingIncrementalPatches()
{
if (comms.Cancel)
{
return(false);
}
comms.LogToFile(Localization.Get(StringId.ApplyingIncrementalPatch));
if (incrementalPatches.Count == 0)
{
return(false);
}
if (comms.VerifyFiles)
{
PatchStage = PatchStage.VerifyingFilesOnServer;
for (int i = 0; i < incrementalPatches.Count; i++)
{
if (comms.Cancel)
{
return(false);
}
IncrementalPatch incrementalPatch = incrementalPatches[i];
long fileSize;
if (!comms.DownloadManager.FileExistsAtUrl(comms.VersionInfo.GetInfoURLFor(incrementalPatch), out fileSize))
{
FailReason = PatchFailReason.FileDoesNotExistOnServer;
FailDetails = Localization.Get(StringId.E_FileXDoesNotExistOnServer, incrementalPatch.PatchVersion() + PatchParameters.INCREMENTAL_PATCH_INFO_EXTENSION);
return(false);
}
if (incrementalPatch.Files > 0)
{
if (!comms.DownloadManager.FileExistsAtUrl(comms.VersionInfo.GetDownloadURLFor(incrementalPatch), out fileSize))
{
FailReason = PatchFailReason.FileDoesNotExistOnServer;
FailDetails = Localization.Get(StringId.E_FileXDoesNotExistOnServer, incrementalPatch.PatchVersion() + PatchParameters.INCREMENTAL_PATCH_FILE_EXTENSION);
return(false);
}
else if (fileSize > 0L && fileSize != incrementalPatch.PatchSize)
{
FailReason = PatchFailReason.FileIsNotValidOnServer;
FailDetails = Localization.Get(StringId.E_FileXIsNotValidOnServer, incrementalPatch.PatchVersion() + PatchParameters.INCREMENTAL_PATCH_FILE_EXTENSION);
return(false);
}
}
}
}
for (int i = 0; i < incrementalPatches.Count; i++)
{
if (comms.Cancel)
{
return(false);
}
IncrementalPatch incrementalPatch = incrementalPatches[i];
string patchInfoXML = comms.DownloadManager.DownloadTextFromURL(comms.VersionInfo.GetInfoURLFor(incrementalPatch));
if (patchInfoXML == null)
{
FailReason = PatchFailReason.DownloadError;
FailDetails = Localization.Get(StringId.E_CouldNotDownloadPatchInfoX, incrementalPatch.PatchVersionBrief());
return(false);
}
if (PatchInfoVerifier != null && !PatchInfoVerifier(ref patchInfoXML))
{
FailReason = PatchFailReason.CantVerifyPatchInfo;
FailDetails = Localization.Get(StringId.E_PatchInfoCouldNotBeVerified);
return(false);
}
IncrementalPatchInfo patchInfo;
try
{
patchInfo = PatchUtils.DeserializeXMLToIncrementalPatchInfo(patchInfoXML);
}
catch (Exception e)
{
comms.LogToFile(e);
FailReason = PatchFailReason.XmlDeserializeError;
FailDetails = Localization.Get(StringId.E_InvalidPatchInfoX, incrementalPatch.PatchVersionBrief());
return(false);
}
patchInfo.FromVersion = incrementalPatch.FromVersion;
patchInfo.ToVersion = incrementalPatch.ToVersion;
patchInfo.DownloadURL = comms.VersionInfo.GetDownloadURLFor(incrementalPatch);
patchInfo.CompressedFileSize = incrementalPatch.PatchSize;
patchInfo.CompressedMd5Hash = incrementalPatch.PatchMd5Hash;
patchInfo.CompressionFormat = incrementalPatch.CompressionFormat;
incrementalPatchesInfo.Add(patchInfo);
if (currentVersion > incrementalPatch.FromVersion)
{
continue;
}
if (new IncrementalPatchApplier(comms, patchInfo).Run() == PatchResult.Failed)
{
return(false);
}
}
return(true);
}
