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Improved LdapService thread safety, fixed user images sometimes not loading

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This commit is contained in:
LD-Reborn
2025-11-24 11:02:58 +01:00
parent 22d72e124f
commit e9a55761c2
2 changed files with 70 additions and 25 deletions
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3
src/Controllers/HomeController.cs
View File

@@ -98,7 +98,6 @@ public class HomeController : Controller
[ResponseCache(Duration = 3600, Location = ResponseCacheLocation.Any, VaryByQueryKeys = new[] { "uid", "size" })]
public async Task<IActionResult> UserPhotoAsync(string uid, int? size)
{
Task<AdminSettingsModel> adminSettingsModelTask = _ldap.GetAdminSettingsModelAsync();
UserModel? user = await _ldap.GetUserByUidAsync(uid, _ldap.UsersAttributes);
if (user is null || user.JpegPhoto is null || user.JpegPhoto == "")
{
@@ -110,7 +109,7 @@ public class HomeController : Controller
}
if (size is not null)
{
AdminSettingsModel adminSettingsModel = await adminSettingsModelTask;
AdminSettingsModel adminSettingsModel = await _ldap.GetAdminSettingsModelAsync();
size = Math.Min((int)size, adminSettingsModel.MaxDownloadableUserImageSize);
}
byte[] encodedFile = ImageHelper.ResizeAndConvertToWebp(user.JpegPhoto, size ?? 32);

92
src/Services/LdapService.cs
View File

@@ -11,6 +11,7 @@ public partial class LdapService : IDisposable
{
private readonly LdapConfig _opts;
private readonly LdapConnection _conn;
private readonly SemaphoreSlim _connLock = new(1, 1);
private AdminSettingsModel? adminSettingsModel;
private ILogger _logger;
@@ -29,19 +30,27 @@ public partial class LdapService : IDisposable
{
try
{
if (!_conn.Connected)
await _connLock.WaitAsync();
try
{
try
if (!_conn.Connected)
{
await _conn.ConnectAsync(_opts.Host, _opts.Port);
}
catch (SystemException ex)
{
_logger.LogWarning("Unable to connect to LDAP: {ex.Message}\n{ex.StackTrace}", [ex.Message, ex.StackTrace]);
throw;
try
{
await _conn.ConnectAsync(_opts.Host, _opts.Port);
}
catch (SystemException ex)
{
_logger.LogWarning("Unable to connect to LDAP: {ex.Message}\n{ex.StackTrace}", [ex.Message, ex.StackTrace]);
throw;
}
}
await _conn.BindAsync(_opts.BindDn, _opts.BindPassword);
}
finally
{
_connLock.Release();
}
await _conn.BindAsync(_opts.BindDn, _opts.BindPassword);
return;
}
catch (Exception ex)
@@ -109,7 +118,7 @@ public partial class LdapService : IDisposable
LdapModification.Replace,
new LdapAttribute("description", targetText)
);
await _conn.ModifyAsync(dn, modification);
await ModifyAsync(dn, modification);
}
catch (Exception)
{
@@ -151,7 +160,7 @@ public partial class LdapService : IDisposable
LdapModification.Replace,
new LdapAttribute("description", targetText)
);
await _conn.ModifyAsync(dn, modification);
await ModifyAsync(dn, modification);
}
catch (Exception)
{
@@ -201,7 +210,7 @@ public partial class LdapService : IDisposable
LdapModification.Replace,
new LdapAttribute("description", targetText)
);
await _conn.ModifyAsync(dn, modification);
await ModifyAsync(dn, modification);
}
catch (Exception)
{
@@ -388,15 +397,16 @@ public async Task CreateAsset(LdapAttributeSet attributeSet)
public async Task<IEnumerable<Dictionary<string, string>>> ListObjectBy(string baseDn, string filter, string[] attributes)
{
return await Task.Run(async () =>
await ConnectAndBind();
await _connLock.WaitAsync();
try
{
await ConnectAndBind();
var search = await _conn.SearchAsync(
baseDn,
LdapConnection.ScopeSub,
$"{filter}",
attributes,
false);
false).ConfigureAwait(false);
var list = new List<Dictionary<string, string>>();
while (await search.HasMoreAsync())
{
@@ -415,7 +425,11 @@ public async Task CreateAsset(LdapAttributeSet attributeSet)
catch (LdapException) { }
}
return list;
});
}
finally
{
_connLock.Release();
}
}
public async Task DeleteUserAsync(string uid)
@@ -468,7 +482,15 @@ public async Task CreateAsset(LdapAttributeSet attributeSet)
string dn = PrependRDN($"{rdnKey}={rdnValue}", baseDn);
if (attributeName == rdnKey)
{
await _conn.RenameAsync(dn, $"{rdnKey}={attributeValue}", true);
await _connLock.WaitAsync();
try
{
await _conn.RenameAsync(dn, $"{rdnKey}={attributeValue}", true);
}
finally
{
_connLock.Release();
}
}
else
{
@@ -476,7 +498,7 @@ public async Task CreateAsset(LdapAttributeSet attributeSet)
LdapModification.Replace,
new LdapAttribute(attributeName, attributeValue)
);
await _conn.ModifyAsync(dn, modification);
await ModifyAsync(dn, modification);
}
}
@@ -490,24 +512,48 @@ public async Task CreateAsset(LdapAttributeSet attributeSet)
new LdapAttribute(attributeName)
);
await _conn.ModifyAsync(dn, modification);
await ModifyAsync(dn, modification);
}
public async Task DeleteObjectByDnAsync(string dn)
{
await _conn.DeleteAsync(dn);
await _connLock.WaitAsync();
try
{
await _conn.DeleteAsync(dn);
}
finally
{
_connLock.Release();
}
}
public async Task CreateObject(string dn, LdapAttributeSet attributeSet)
{
await ConnectAndBind();
LdapEntry ldapEntry = new(dn, attributeSet);
await _conn.AddAsync(ldapEntry);
await _connLock.WaitAsync();
try
{
await _conn.AddAsync(ldapEntry);
}
finally
{
_connLock.Release();
}
}
public async Task ModifyAsync(string dn, LdapModification ldapModification)
public async Task ModifyAsync(string dn, LdapModification mod, CancellationToken ct = default)
{
await _conn.ModifyAsync(dn, ldapModification);
await _connLock.WaitAsync(ct);
try
{
await _conn.ModifyAsync(dn, mod, ct);
}
finally
{
_connLock.Release();
}
}
public void Dispose()