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0eb2cf18a4
When a disk in url_override and root_override is absent from tenancy.filesystem.disks, FilesystemTenancyBootstrapper leaves its root unchanged, possibleTenantSymlinks allows creating a symlink for that unscoped disk (= a disk with a central root), which can expose shared files. Fixed by throwing an exception in possibleTenantSymlinks saying that the disk should be tenant-aware (= included in the tenancy.filesystem.disks config).
72 lines
2.5 KiB
PHP
72 lines
2.5 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Stancl\Tenancy\Concerns;
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use Exception;
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use Stancl\Tenancy\Contracts\Tenant;
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/**
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* Requires FilesystemTenancyBootstrapper to be enabled, since the tenant symlinks
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* point to the disk roots scoped by the bootstrapper.
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*
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* @see \Stancl\Tenancy\Bootstrappers\FilesystemTenancyBootstrapper
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*/
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trait DealsWithTenantSymlinks
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{
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/**
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* Get all possible tenant symlinks, existing or not (array of ['public path' => 'disk root']).
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*
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* Tenants can have a symlink for each disk registered in the tenancy.filesystem.url_override config.
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* This is used for creating all possible tenant symlinks and removing all existing tenant symlinks.
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* The same disk root can be symlinked to multiple public paths, which is why the public path
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* is the array key.
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*
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* @return array<string, string>
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*/
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protected function possibleTenantSymlinks(Tenant $tenant): array
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{
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$disks = config('filesystems.disks');
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$urlOverrides = config('tenancy.filesystem.url_override');
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$rootOverrides = config('tenancy.filesystem.root_override');
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$tenantKey = $tenant->getTenantKey();
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$tenantDisks = tenancy()->run($tenant, fn () => config('filesystems.disks'));
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/** @var array<string, string> $symlinks */
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$symlinks = [];
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foreach ($urlOverrides as $disk => $publicPath) {
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if (! isset($disks[$disk])) {
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continue;
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}
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if (! isset($rootOverrides[$disk])) {
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continue;
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}
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if ($disks[$disk]['driver'] !== 'local') {
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throw new Exception("Disk $disk is not a local disk. Only local disks can be symlinked.");
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}
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if (! in_array($disk, config('tenancy.filesystem.disks'), true)) {
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// The bootstrapper only scopes disks listed in tenancy.filesystem.disks. Without that,
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// the disk root stays central, and the symlink of every tenant would point to it.
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throw new Exception("Disk $disk is not tenant-aware. Add it to the tenancy.filesystem.disks config to make its root tenant-specific.");
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}
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$publicPath = str_replace('%tenant%', (string) $tenantKey, $publicPath);
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$symlinks[public_path($publicPath)] = $tenantDisks[$disk]['root'];
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}
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return $symlinks;
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}
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/** Determine if the provided path is an existing symlink. */
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protected function symlinkExists(string $link): bool
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{
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return is_link($link);
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}
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}
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