ladill-hosting/app/Models/HostingAccountMember.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class HostingAccountMember extends Model
{
    use HasFactory;

    public const ROLE_DEVELOPER = 'developer';

    private const SSH_KEY_PATTERN = '/^(ssh-(ed25519|rsa)|ecdsa-sha2-nistp(256|384|521)|sk-ssh-ed25519@openssh\\.com|sk-ecdsa-sha2-nistp256@openssh\\.com) [A-Za-z0-9+\\/]+={0,3}(?: .+)?$/';

    protected $fillable = [
        'hosting_account_id',
        'user_id',
        'invited_by_user_id',
        'role',
        'invited_at',
        'ssh_public_key',
        'ssh_key_installed_at',
    ];

    protected $casts = [
        'invited_at' => 'datetime',
        'ssh_key_installed_at' => 'datetime',
    ];

    public function hostingAccount(): BelongsTo
    {
        return $this->belongsTo(HostingAccount::class);
    }

    public function user(): BelongsTo
    {
        return $this->belongsTo(User::class);
    }

    public function invitedBy(): BelongsTo
    {
        return $this->belongsTo(User::class, 'invited_by_user_id');
    }

    public function sshKeyMarker(): string
    {
        return 'ladill-team-member-'.$this->id;
    }

    public function hasSshAccessKey(): bool
    {
        return filled($this->ssh_public_key);
    }

    public static function normalizeSshPublicKey(string $value): string
    {
        return trim(preg_replace('/\s+/', ' ', trim($value)) ?? '');
    }

    public static function looksLikeSshPublicKey(?string $value): bool
    {
        if (! is_string($value)) {
            return false;
        }

        $normalized = static::normalizeSshPublicKey($value);

        return $normalized !== '' && preg_match(self::SSH_KEY_PATTERN, $normalized) === 1;
    }
}