/// <summary>
/// Ensures the archive can be accessed.
/// Since SharpCompress cannot check for encryption, we simply check for an access exception.
/// </summary>
/// <param name="Archive">A SharpCompress Archive object to validate</param>
/// <returns>Whether the file can be accessed</returns>
public static bool IsArchiveAccessible(SCA.IArchive scArch)
{
bool bAccessible = false;
try {
if (scArch.Entries.Count() >= 0)
{
bAccessible = true;
}
} catch {
SQL.LogMessage("Tried to access encrypted archive", SQL.EventType.HandledException, scArch);
}
return(bAccessible);
}
/// <summary>
/// Returns the first image from the specified location
/// </summary>
/// <param name="sPath">The location to find an image</param>
/// <param name="DisplayErrors">Whether to show any error messages</param>
/// <returns></returns>
public static Bitmap LoadImage(string sPath, bool DisplayErrors = true)
{
Bitmap bmp = null;
if (Directory.Exists(sPath))
{
string[] sFiles = new string[0];
if ((sFiles = Ext.GetFiles(sPath, SearchOption.TopDirectoryOnly)).Length > 0)
{
sPath = sFiles[0];
}
}
if (Ext.Accessible(sPath, Permissions: FileIOPermissionAccess.Read) == Ext.PathType.ValidFile)
{
if (Ext.IsArchive(sPath))
{
using (SCA.IArchive scArch = SCA.ArchiveFactory.Open(sPath)) {
if (!Ext.IsArchiveAccessible(scArch))
{
return(bmp);
}
int iCount = scArch.Entries.Count();
if (iCount > 0)
{
//account for terrible default zip-sorting
int iFirst = 0;
SCA.IArchiveEntry[] scEntries = scArch.Entries.ToArray();
List <string> lEntries = new List <string>(iCount);
for (int i = 0; i < iCount; i++)
{
if (Ext.ImageTypes.Contains(Path.GetExtension(scEntries[i].Key).ToLower()))
{
lEntries.Add(scEntries[i].Key);
}
}
if (lEntries.Count > 0)
{
lEntries.Sort(new TrueCompare());
for (; iFirst < iCount; iFirst++)
{
if (scEntries[iFirst].Key.Length == lEntries[0].Length)
{
if (scEntries[iFirst].Key.Equals(lEntries[0]))
{
break;
}
}
}
try {
using (Stream ms = scEntries[iFirst].OpenEntryStream()) {
bmp = new Bitmap(ms);
}
} catch (Exception exc) {
SQL.LogMessage(exc, SQL.EventType.HandledException, sPath + "\\" + scEntries[iFirst].Key);
if (DisplayErrors)
{
xMessage.ShowError("The following file could not be loaded:\n" + scEntries[iFirst].Key);
}
}
}
}
}
}
else
{
try {
bmp = new Bitmap(sPath);
} catch (Exception exc) {
SQL.LogMessage(exc, SQL.EventType.HandledException, sPath);
if (DisplayErrors)
{
xMessage.ShowError("The following file could not be loaded:\n" + sPath);
}
}
}
}
return(bmp);
}