113 lines
2.8 KiB
PHP
113 lines
2.8 KiB
PHP
<?php
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namespace BookStack\Access;
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use BookStack\Exceptions\UserTokenExpiredException;
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use BookStack\Exceptions\UserTokenNotFoundException;
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use BookStack\Users\Models\User;
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use Carbon\Carbon;
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use Illuminate\Support\Facades\DB;
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use Illuminate\Support\Str;
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use stdClass;
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class UserTokenService
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{
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/**
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* Name of table where user tokens are stored.
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*/
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protected string $tokenTable = 'user_tokens';
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/**
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* Token expiry time in hours.
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*/
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protected int $expiryTime = 24;
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/**
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* Delete all tokens that belong to a user.
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*/
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public function deleteByUser(User $user): void
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{
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DB::table($this->tokenTable)
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->where('user_id', '=', $user->id)
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->delete();
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}
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/**
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* Get the user id from a token, while checking the token exists and has not expired.
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*
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* @throws UserTokenNotFoundException
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* @throws UserTokenExpiredException
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*/
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public function checkTokenAndGetUserId(string $token): int
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{
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$entry = $this->getEntryByToken($token);
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if (is_null($entry)) {
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throw new UserTokenNotFoundException('Token "' . $token . '" not found');
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}
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if ($this->entryExpired($entry)) {
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throw new UserTokenExpiredException("Token of id {$entry->id} has expired.", $entry->user_id);
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}
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return $entry->user_id;
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}
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/**
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* Creates a unique token within the email confirmation database.
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*/
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protected function generateToken(): string
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{
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$token = Str::random(24);
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while ($this->tokenExists($token)) {
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$token = Str::random(25);
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}
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return $token;
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}
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/**
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* Generate and store a token for the given user.
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*/
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protected function createTokenForUser(User $user): string
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{
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$token = $this->generateToken();
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DB::table($this->tokenTable)->insert([
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'user_id' => $user->id,
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'token' => $token,
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'created_at' => Carbon::now(),
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'updated_at' => Carbon::now(),
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]);
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return $token;
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}
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/**
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* Check if the given token exists.
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*/
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protected function tokenExists(string $token): bool
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{
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return DB::table($this->tokenTable)
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->where('token', '=', $token)->exists();
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}
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/**
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* Get a token entry for the given token.
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*/
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protected function getEntryByToken(string $token): ?stdClass
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{
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return DB::table($this->tokenTable)
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->where('token', '=', $token)
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->first();
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}
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/**
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* Check if the given token entry has expired.
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*/
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protected function entryExpired(stdClass $tokenEntry): bool
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{
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return Carbon::now()->subHours($this->expiryTime)
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->gt(new Carbon($tokenEntry->created_at));
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}
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}
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