public static WebBrowserCacheEntry[] FindCacheFilesForUrl(string url)
{
const int ERROR_NO_MORE_ITEMS = 259; // No more items have been found.
// Local variables
int cacheEntryInfoBufferSizeInitial = 0;
int cacheEntryInfoBufferSize = 0;
IntPtr cacheEntryInfoBuffer = IntPtr.Zero;
INTERNET_CACHE_ENTRY_INFOA internetCacheEntry;
IntPtr enumHandle = IntPtr.Zero;
bool returnValue = false;
System.Collections.Generic.List <WebBrowserCacheEntry> wbcEntries = new System.Collections.Generic.List <WebBrowserCacheEntry>();
try
{
enumHandle = FindFirstUrlCacheEntry(null, IntPtr.Zero, ref cacheEntryInfoBufferSizeInitial);
if (enumHandle != IntPtr.Zero && ERROR_NO_MORE_ITEMS == Marshal.GetLastWin32Error())
{
return(wbcEntries.ToArray());
}
cacheEntryInfoBufferSize = cacheEntryInfoBufferSizeInitial;
cacheEntryInfoBuffer = Marshal.AllocHGlobal(cacheEntryInfoBufferSize);
enumHandle = FindFirstUrlCacheEntry(null, cacheEntryInfoBuffer, ref cacheEntryInfoBufferSizeInitial);
while (true)
{
internetCacheEntry = (INTERNET_CACHE_ENTRY_INFOA)Marshal.PtrToStructure(cacheEntryInfoBuffer, typeof(INTERNET_CACHE_ENTRY_INFOA));
WebBrowserCacheEntry wbcEntry = new WebBrowserCacheEntry(internetCacheEntry);
if (wbcEntry.SourceUrl == new Uri(url))
{
wbcEntries.Add(wbcEntry);
}
cacheEntryInfoBufferSizeInitial = cacheEntryInfoBufferSize;
returnValue = FindNextUrlCacheEntry(enumHandle, cacheEntryInfoBuffer, ref cacheEntryInfoBufferSizeInitial);
if (!returnValue && ERROR_NO_MORE_ITEMS == Marshal.GetLastWin32Error())
{
Console.WriteLine(new System.ComponentModel.Win32Exception(Marshal.GetLastWin32Error()).Message);
break;
}
if (!returnValue && cacheEntryInfoBufferSizeInitial > cacheEntryInfoBufferSize)
{
cacheEntryInfoBufferSize = cacheEntryInfoBufferSizeInitial;
cacheEntryInfoBuffer = Marshal.ReAllocHGlobal(cacheEntryInfoBuffer, (IntPtr)cacheEntryInfoBufferSize);
returnValue = FindNextUrlCacheEntry(enumHandle, cacheEntryInfoBuffer, ref cacheEntryInfoBufferSizeInitial);
if (!returnValue)
{
Console.WriteLine(new System.ComponentModel.Win32Exception(Marshal.GetLastWin32Error()).Message);
}
}
}
Marshal.FreeHGlobal(cacheEntryInfoBuffer);
} catch (Exception e)
{
throw new InvalidOperationException("error reading cache", e);
}
return(wbcEntries.ToArray());
}
public static WebBrowserCacheEntry[] FindCacheFilesForUrl( string url )
{
const int ERROR_NO_MORE_ITEMS = 259; // No more items have been found.
// Local variables
int cacheEntryInfoBufferSizeInitial = 0;
int cacheEntryInfoBufferSize = 0;
IntPtr cacheEntryInfoBuffer = IntPtr.Zero;
INTERNET_CACHE_ENTRY_INFOA internetCacheEntry;
IntPtr enumHandle = IntPtr.Zero;
bool returnValue = false;
System.Collections.Generic.List<WebBrowserCacheEntry> wbcEntries = new System.Collections.Generic.List<WebBrowserCacheEntry>();
try
{
enumHandle = FindFirstUrlCacheEntry( null, IntPtr.Zero, ref cacheEntryInfoBufferSizeInitial );
if( enumHandle != IntPtr.Zero && ERROR_NO_MORE_ITEMS == Marshal.GetLastWin32Error() )
return wbcEntries.ToArray();
cacheEntryInfoBufferSize = cacheEntryInfoBufferSizeInitial;
cacheEntryInfoBuffer = Marshal.AllocHGlobal( cacheEntryInfoBufferSize );
enumHandle = FindFirstUrlCacheEntry( null, cacheEntryInfoBuffer, ref cacheEntryInfoBufferSizeInitial );
while( true )
{
internetCacheEntry = (INTERNET_CACHE_ENTRY_INFOA) Marshal.PtrToStructure( cacheEntryInfoBuffer, typeof( INTERNET_CACHE_ENTRY_INFOA ) );
WebBrowserCacheEntry wbcEntry = new WebBrowserCacheEntry( internetCacheEntry );
if( wbcEntry.SourceUrl == new Uri( url ) )
wbcEntries.Add( wbcEntry );
cacheEntryInfoBufferSizeInitial = cacheEntryInfoBufferSize;
returnValue = FindNextUrlCacheEntry( enumHandle, cacheEntryInfoBuffer, ref cacheEntryInfoBufferSizeInitial );
if( !returnValue && ERROR_NO_MORE_ITEMS == Marshal.GetLastWin32Error() )
{
Console.WriteLine( new System.ComponentModel.Win32Exception( Marshal.GetLastWin32Error() ).Message );
break;
}
if( !returnValue && cacheEntryInfoBufferSizeInitial > cacheEntryInfoBufferSize )
{
cacheEntryInfoBufferSize = cacheEntryInfoBufferSizeInitial;
cacheEntryInfoBuffer = Marshal.ReAllocHGlobal( cacheEntryInfoBuffer, (IntPtr) cacheEntryInfoBufferSize );
returnValue = FindNextUrlCacheEntry( enumHandle, cacheEntryInfoBuffer, ref cacheEntryInfoBufferSizeInitial );
if( !returnValue )
Console.WriteLine( new System.ComponentModel.Win32Exception( Marshal.GetLastWin32Error() ).Message );
}
}
Marshal.FreeHGlobal( cacheEntryInfoBuffer );
} catch( Exception e )
{
throw new InvalidOperationException( "error reading cache", e );
}
return wbcEntries.ToArray();
}
