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Add Bearcap util

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Daniel Supernault 2021-09-01 01:21:47 -06:00
parent 0e13ab074c
commit e90637098a
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GPG key ID: 0DEF1C662C9033F7
3 changed files with 136 additions and 1 deletions
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3
app/Story.php
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@ -6,6 +6,7 @@ use Auth;
use Storage;
use Illuminate\Database\Eloquent\Model;
use Pixelfed\Snowflake\HasSnowflakePrimary;
use App\Util\Lexer\Bearcap;
class Story extends Model
{
@ -66,7 +67,7 @@ class Story extends Model
public function bearcapUrl()
{
return "bear:?t={$this->bearcap_token}&u={$this->url()}";
return Bearcap::encode($this->url(), $this->bearcap_token);
}
public function scopeToAudience($scope)

57
app/Util/Lexer/Bearcap.php Normal file
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@ -0,0 +1,57 @@
<?php
namespace App\Util\Lexer;
use Illuminate\Support\Str;
use App\Util\ActivityPub\Helpers;
class Bearcap
{
public static function encode($url, $token)
{
return "bear:?t={$token}&u={$url}";
}
public static function decode($str)
{
if(!Str::startsWith($str, 'bear:')) {
return false;
}
$query = parse_url($str, PHP_URL_QUERY);
if(!$query) {
return false;
}
$res = [];
$parts = Str::of($str)->substr(6)->explode('&')->toArray();
foreach($parts as $part) {
if(Str::startsWith($part, 't=')) {
$res['token'] = substr($part, 2);
}
if(Str::startsWith($part, 'u=')) {
$res['url'] = substr($part, 2);
}
}
if( !isset($res['token']) ||
!isset($res['url'])
) {
return false;
}
$url = $res['url'];
if(mb_substr($url, 0, 8) !== 'https://') {
return false;
}
$valid = filter_var($url, FILTER_VALIDATE_URL);
if(!$valid) {
return false;
}
return $res;
}
}

77
tests/Unit/BearcapTest.php Normal file
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@ -0,0 +1,77 @@
<?php
namespace Tests\Unit;
use PHPUnit\Framework\TestCase;
use App\Util\Lexer\Bearcap;
class BearcapTest extends TestCase
{
/** @test */
public function validTest()
{
$str = 'bear:?t=LpVypnEUdHhwwgXE9tTqEwrtPvmLjqYaPexqyXnVo1flSfJy5AYMCdRPiFRmqld2&u=https://pixelfed.test/stories/admin/337892163734081536';
$expected = [
"token" => "LpVypnEUdHhwwgXE9tTqEwrtPvmLjqYaPexqyXnVo1flSfJy5AYMCdRPiFRmqld2",
"url" => "https://pixelfed.test/stories/admin/337892163734081536",
];
$actual = Bearcap::decode($str);
$this->assertEquals($expected, $actual);
}
/** @test */
public function invalidTokenParameterName()
{
$str = 'bear:?token=LpVypnEUdHhwwgXE9tTqEwrtPvmLjqYaPexqyXnVo1flSfJy5AYMCdRPiFRmqld2&u=https://pixelfed.test/stories/admin/337892163734081536';
$actual = Bearcap::decode($str);
$this->assertFalse($actual);
}
/** @test */
public function invalidUrlParameterName()
{
$str = 'bear:?t=LpVypnEUdHhwwgXE9tTqEwrtPvmLjqYaPexqyXnVo1flSfJy5AYMCdRPiFRmqld2&url=https://pixelfed.test/stories/admin/337892163734081536';
$actual = Bearcap::decode($str);
$this->assertFalse($actual);
}
/** @test */
public function invalidScheme()
{
$str = 'bearcap:?t=LpVypnEUdHhwwgXE9tTqEwrtPvmLjqYaPexqyXnVo1flSfJy5AYMCdRPiFRmqld2&url=https://pixelfed.test/stories/admin/337892163734081536';
$actual = Bearcap::decode($str);
$this->assertFalse($actual);
}
/** @test */
public function missingToken()
{
$str = 'bear:?u=https://pixelfed.test/stories/admin/337892163734081536';
$actual = Bearcap::decode($str);
$this->assertFalse($actual);
}
/** @test */
public function missingUrl()
{
$str = 'bear:?t=LpVypnEUdHhwwgXE9tTqEwrtPvmLjqYaPexqyXnVo1flSfJy5AYMCdRPiFRmqld2';
$actual = Bearcap::decode($str);
$this->assertFalse($actual);
}
/** @test */
public function invalidHttpUrl()
{
$str = 'bear:?t=LpVypnEUdHhwwgXE9tTqEwrtPvmLjqYaPexqyXnVo1flSfJy5AYMCdRPiFRmqld2&u=http://pixelfed.test/stories/admin/337892163734081536';
$actual = Bearcap::decode($str);
$this->assertFalse($actual);
}
/** @test */
public function invalidUrlSchema()
{
$str = 'bear:?t=LpVypnEUdHhwwgXE9tTqEwrtPvmLjqYaPexqyXnVo1flSfJy5AYMCdRPiFRmqld2&u=phar://pixelfed.test/stories/admin/337892163734081536';
$actual = Bearcap::decode($str);
$this->assertFalse($actual);
}
}