private async Task UpdateAliasNew(string originalName, int?ip, Data.Models.Client.EFClient entity,
DatabaseContext context)
{
var name = originalName.CapClientName(EFAlias.MAX_NAME_LENGTH);
var existingAliases = await context.Aliases
.Where(alias => alias.Name == name && alias.LinkId == entity.AliasLinkId ||
alias.Name == name && alias.IPAddress != null && alias.IPAddress == ip)
.ToListAsync();
var defaultAlias = existingAliases.FirstOrDefault(alias => alias.IPAddress == null);
var existingExactAlias =
existingAliases.FirstOrDefault(alias => alias.IPAddress != null && alias.IPAddress == ip);
if (defaultAlias != null && existingExactAlias == null)
{
defaultAlias.IPAddress = ip;
entity.CurrentAlias = defaultAlias;
entity.CurrentAliasId = defaultAlias.AliasId;
await context.SaveChangesAsync();
return;
}
if (existingExactAlias != null && entity.AliasLinkId == existingExactAlias.LinkId)
{
entity.CurrentAlias = existingExactAlias;
entity.CurrentAliasId = existingExactAlias.AliasId;
await context.SaveChangesAsync();
_logger.LogDebug("[{Method}] client {Client} already has an existing exact alias, so we are not making changes", nameof(UpdateAliasNew), entity.ToString());
return;
}
_logger.LogDebug("[{Method}] {Entity} is using a new alias", nameof(UpdateAliasNew), entity.ToString());
var newAlias = new EFAlias()
{
DateAdded = DateTime.UtcNow,
IPAddress = ip,
LinkId = entity.AliasLinkId,
Name = name,
SearchableName = name.StripColors().ToLower(),
Active = true,
};
entity.CurrentAlias = newAlias;
await context.SaveChangesAsync();
entity.CurrentAliasId = newAlias.AliasId;
}
private async Task UpdateAlias(string originalName, int?ip, Data.Models.Client.EFClient entity, DatabaseContext context)
{
{
string name = originalName.CapClientName(EFAlias.MAX_NAME_LENGTH);
// entity is the tracked db context item
// get all aliases by IP address and LinkId
var iqAliases = context.Aliases
.Include(a => a.Link)
// we only want alias that have the same IP address or share a link
.Where(_alias => _alias.IPAddress == ip || (_alias.LinkId == entity.AliasLinkId));
var aliases = await iqAliases.ToListAsync();
var currentIPs = aliases.Where(_a2 => _a2.IPAddress != null).Select(_a2 => _a2.IPAddress).Distinct();
var floatingIPAliases = await context.Aliases.Where(_alias => currentIPs.Contains(_alias.IPAddress))
.ToListAsync();
aliases.AddRange(floatingIPAliases);
// see if they have a matching IP + Name but new NetworkId
var existingExactAlias = aliases.OrderBy(_alias => _alias.LinkId)
.FirstOrDefault(a => a.Name == name && a.IPAddress == ip);
bool hasExactAliasMatch = existingExactAlias != null;
// if existing alias matches link them
var newAliasLink = existingExactAlias?.Link;
// if no exact matches find the first IP or LinkId that matches
newAliasLink = newAliasLink ?? aliases.OrderBy(_alias => _alias.LinkId).FirstOrDefault()?.Link;
// if no matches are found, use our current one ( it will become permanent )
newAliasLink = newAliasLink ?? entity.AliasLink;
bool hasExistingAlias = aliases.Count > 0;
bool isAliasLinkUpdated = newAliasLink.AliasLinkId != entity.AliasLink.AliasLinkId;
await context.SaveChangesAsync();
int distinctLinkCount = aliases.Select(_alias => _alias.LinkId).Distinct().Count();
// this happens when the link we found is different than the one we create before adding an IP
if (isAliasLinkUpdated || distinctLinkCount > 1)
{
_logger.LogDebug(
"[updatealias] found a link for {entity} so we are updating link from {oldAliasLinkId} to {newAliasLinkId}",
entity.ToString(), entity.AliasLink.AliasLinkId, newAliasLink.AliasLinkId);
var completeAliasLinkIds = aliases.Select(_item => _item.LinkId)
.Append(entity.AliasLinkId)
.Distinct()
.ToList();
_logger.LogDebug("[updatealias] updating aliasLinks {links} for IP {ip} to {linkId}",
string.Join(',', completeAliasLinkIds), ip, newAliasLink.AliasLinkId);
// update all the clients that have the old alias link
await context.Clients
.Where(_client => completeAliasLinkIds.Contains(_client.AliasLinkId))
.ForEachAsync(_client => _client.AliasLinkId = newAliasLink.AliasLinkId);
// we also need to update all the penalties or they get deleted
// scenario
// link1 joins with ip1
// link2 joins with ip2,
// link2 receives penalty
// link2 joins with ip1
// pre existing link for link2 detected
// link2 is deleted
// link2 penalties are orphaned
await context.Penalties
.Where(_penalty => completeAliasLinkIds.Contains(_penalty.LinkId))
.ForEachAsync(_penalty => _penalty.LinkId = newAliasLink.AliasLinkId);
entity.AliasLink = newAliasLink;
entity.AliasLinkId = newAliasLink.AliasLinkId;
// update all previous aliases
await context.Aliases
.Where(_alias => completeAliasLinkIds.Contains(_alias.LinkId))
.ForEachAsync(_alias => _alias.LinkId = newAliasLink.AliasLinkId);
await context.SaveChangesAsync();
// we want to delete the now inactive alias
if (newAliasLink.AliasLinkId != entity.AliasLinkId)
{
context.AliasLinks.Remove(entity.AliasLink);
await context.SaveChangesAsync();
}
}
// the existing alias matches ip and name, so we can just ignore the temporary one
if (hasExactAliasMatch)
{
_logger.LogDebug("[updatealias] {entity} has exact alias match", entity.ToString());
var oldAlias = entity.CurrentAlias;
entity.CurrentAliasId = existingExactAlias.AliasId;
entity.CurrentAlias = existingExactAlias;
await context.SaveChangesAsync();
// the alias is the same so we can just remove it
if (oldAlias.AliasId != existingExactAlias.AliasId && oldAlias.AliasId > 0)
{
await context.Clients
.Where(_client => _client.CurrentAliasId == oldAlias.AliasId)
.ForEachAsync(_client => _client.CurrentAliasId = existingExactAlias.AliasId);
await context.SaveChangesAsync();
if (context.Entry(oldAlias).State != EntityState.Deleted)
{
_logger.LogDebug(
"[updatealias] {entity} has exact alias match, so we're going to try to remove aliasId {aliasId} with linkId {linkId}",
entity.ToString(), oldAlias.AliasId, oldAlias.LinkId);
context.Aliases.Remove(oldAlias);
await context.SaveChangesAsync();
}
}
}
// theres no exact match, but they've played before with the GUID or IP
else
{
_logger.LogDebug("[updatealias] {entity} is using a new alias", entity.ToString());
var newAlias = new EFAlias()
{
DateAdded = DateTime.UtcNow,
IPAddress = ip,
LinkId = newAliasLink.AliasLinkId,
Name = name,
SearchableName = name.StripColors().ToLower(),
Active = true,
};
entity.CurrentAlias = newAlias;
entity.CurrentAliasId = 0;
await context.SaveChangesAsync();
}
}
}