PrivateBin/tst/YourlsProxyTest.php

<?php declare(strict_types=1);

use PHPUnit\Framework\TestCase;
use PrivateBin\Configuration;
use PrivateBin\YourlsProxy;

class YourlsProxyTest extends TestCase
{
    private $_conf;

    private $_path;

    private $_mock_yourls_service;

    public function setUp(): void
    {
        /* Setup Routine */
        $this->_path = sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'privatebin_data';
        if (!is_dir($this->_path)) {
            mkdir($this->_path);
        }
        $this->_mock_yourls_service         = $this->_path . DIRECTORY_SEPARATOR . 'yourls.json';
        $options                            = parse_ini_file(CONF_SAMPLE, true);
        $options['main']['basepath']        = 'https://example.com/';
        $options['main']['urlshortener']    = 'https://example.com/shortenviayourls?link=';
        $options['yourls']['apiurl']        = $this->_mock_yourls_service;
        Helper::confBackup();
        Helper::createIniFile(CONF, $options);
        $this->_conf = new Configuration;
    }

    public function tearDown(): void
    {
        /* Tear Down Routine */
        unlink(CONF);
        Helper::confRestore();
        Helper::rmDir($this->_path);
    }

    public function testYourlsProxy()
    {
        // the real service answer is more complex, but we only look for the shorturl & statusCode
        file_put_contents($this->_mock_yourls_service, '{"shorturl":"https:\/\/example.com\/1","statusCode":200}');

        $yourls = new YourlsProxy($this->_conf, 'https://example.com/?foo#bar');
        $this->assertFalse($yourls->isError());
        $this->assertEquals($yourls->getUrl(), 'https://example.com/1');
    }

    public function testForeignUrl()
    {
        $yourls = new YourlsProxy($this->_conf, 'https://other.example.com/?foo#bar');
        $this->assertTrue($yourls->isError());
        $this->assertEquals($yourls->getError(), 'Trying to shorten a URL that isn\'t pointing at our instance.');
    }

    public function testSneakyForeignUrl()
    {
        $yourls = new YourlsProxy($this->_conf, 'https://other.example.com/?q=https://example.com/?foo#bar');
        $this->assertTrue($yourls->isError());
        $this->assertEquals($yourls->getError(), 'Trying to shorten a URL that isn\'t pointing at our instance.');
    }

    public function testYourlsError()
    {
        // when statusCode is not 200, shorturl may not have been set
        file_put_contents($this->_mock_yourls_service, '{"statusCode":403}');

        $yourls = new YourlsProxy($this->_conf, 'https://example.com/?foo#bar');
        $this->assertTrue($yourls->isError());
        $this->assertEquals($yourls->getError(), 'Error parsing YOURLS response.');
    }

    public function testServerError()
    {
        // simulate some other server error that results in a non-JSON reply
        file_put_contents($this->_mock_yourls_service, '500 Internal Server Error');

        $yourls = new YourlsProxy($this->_conf, 'https://example.com/?foo#bar');
        $this->assertTrue($yourls->isError());
        $this->assertEquals($yourls->getError(), 'Error calling YOURLS. Probably a configuration issue, like wrong or missing "apiurl" or "signature".');
    }
}