[sdz]

THIS IS UPDATED AND NO LONGER REQUIRES AN API KEY!

Dependencies:

• SteamWorks
• Updater

Enables server owners to block family shared accounts and copies of the games, while at the same time enabling other family shared copies to play. Thus, a family share whitelist.

Updated to use SteamWorks on 4/29/2022 since valve removed or (seemingly broke?) IsPlayingSharedGame from the API

Commands:

• sm_reloadlist - Reloads the whitelist while plugin is running.
• sm_addtolist - Add a player to the white/blacklist.
• sm_removefromlist - Remove a player from the white/blacklist.
• sm_displaylist - Displays all Steam IDs currently in the list
  

cfg/sourcemod/plugin.familyshare_manager.cfg

Spoiler

// This file was auto-generated by SourceMod (v1.8.0.5970)
// ConVars for plugin "familyshare_manager.smx"

// Message to display in sourcebans/on ban
// -
// Default: "Family sharing is disabled."
sm_familyshare_banmessage "Family sharing is disabled"

// Check and unblock admins?
// -
// Default: "1"
// Minimum: "0.000000"
// Maximum: "1.000000"
sm_familyshare_ignoreadmins "1"

// File to use for whitelist (addons/sourcemod/configs/file)
// -
// Default: "familyshare_whitelist.ini"
sm_familyshare_whitelist "familyshare_whitelist.ini"

whitelist format: steamid then new line. one steam id per line.

STEAM_0:1:1854617
STEAM_0:1:123

A question by ShogoMoe I answered:
If you wanted this to be a blacklist instead, allowing all family shared accounts besides the ones on the list, you could simply add one character to the code:

Spoiler

PHP Code:

public OnClientPostAdminCheck(client)
{
    new bool:whiteListed = false;
    if(g_bParsed)
    {
        decl String:auth[2][64];
        GetClientAuthId(client, AuthId_Steam2, auth[0], sizeof(auth[]));
        whiteListed = GetTrieString(g_hWhitelistTrie, auth[0], auth[1], sizeof(auth[]));
        if(!whiteListed)
        {
            LogMessage("Whitelist found player: %N", client);
            return;
        }
    }

    if(CheckCommandAccess(client, "sm_admin", ADMFLAG_GENERIC) && GetConVarInt(g_hCvar_IgnoreAdmins) > 0)
    {
        return;
    }

    if(!IsFakeClient(client))
        checkFamilySharing(client);
} 


Alternatively, I could attach one modified for the blacklisting instead of the whitelisting.