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Differences Between: [Versions 310 and 311] [Versions 311 and 400] [Versions 311 and 401] [Versions 311 and 402] [Versions 311 and 403] [Versions 39 and 311]

   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  namespace core;
  18  
  19  defined('MOODLE_INTERNAL') || die();
  20  
  21  // Global $CFG not used here intentionally to make sure it is not required inside the lib.
  22  require_once (__DIR__ . '/../configonlylib.php');
  23  
  24  /**
  25   * Unit tests for config only library functions.
  26   *
  27   * @package    core
  28   * @category   test
  29   * @copyright  2012 Petr Skoda {@link http://skodak.org}
  30   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  31   */
  32  class configonlylib_test extends \advanced_testcase {
  33  
  34      /**
  35       * Test cleaning of invalid utf-8 entities.
  36       */
  37      public function test_min_fix_utf8() {
  38          $this->assertSame('abc', min_fix_utf8('abc'));
  39          $this->assertSame("žlutý koníček přeskočil potůček \n\t\r", min_fix_utf8("žlutý koníček přeskočil potůček \n\t\r\0"));
  40          $this->assertSame('aš', min_fix_utf8('a'.chr(130).'š'), 'This fails with buggy iconv() when mbstring extenstion is not available as fallback.');
  41      }
  42  
  43      /**
  44       * Test minimalistic parameter cleaning.
  45       */
  46      public function test_min_clean_param() {
  47          $this->assertSame('foo', min_clean_param('foo', 'RAW'));
  48          $this->assertSame('aš', min_clean_param('a'.chr(130).'š', 'RAW'));
  49  
  50          $this->assertSame(1, min_clean_param('1', 'INT'));
  51          $this->assertSame(1, min_clean_param('1aa', 'INT'));
  52  
  53          $this->assertSame('1abc-d_f', min_clean_param('/.1ačž"b?;c-d{}\\_f.', 'SAFEDIR'));
  54          $this->assertSame(1, min_clean_param('1aa', 'INT'));
  55  
  56          $this->assertSame('/a/b/./c5', min_clean_param('/a*?$//b/.../c5', 'SAFEPATH'));
  57          $this->assertSame(1, min_clean_param('1aa', 'INT'));
  58      }
  59  
  60      /**
  61       * Test minimalistic getting of page parameters.
  62       */
  63      public function test_min_optional_param() {
  64          $this->resetAfterTest();
  65  
  66          $_GET['foo'] = 'bar';
  67          $_GET['num'] = '1';
  68          $_GET['xnum'] = '1aa';
  69  
  70          $_POST['foo'] = 'rebar';
  71          $_POST['oof'] = 'rab';
  72  
  73          $this->assertSame('bar', min_optional_param('foo', null, 'RAW'));
  74          $this->assertSame(null, min_optional_param('foo2', null, 'RAW'));
  75          $this->assertSame('rab', min_optional_param('oof', null, 'RAW'));
  76  
  77          $this->assertSame(1, min_optional_param('num', null, 'INT'));
  78          $this->assertSame(1, min_optional_param('xnum', null, 'INT'));
  79      }
  80  
  81      /**
  82       * Test fail-safe minimalistic slashargument processing.
  83       */
  84      public function test_min_get_slash_argument() {
  85          global $CFG;
  86  
  87          $this->resetAfterTest();
  88          $this->assertEquals('https://www.example.com/moodle', $CFG->wwwroot);
  89  
  90          $_SERVER = array();
  91          $_SERVER['SERVER_SOFTWARE'] = 'Apache/2.2.22 (Unix)';
  92          $_SERVER['QUERY_STRING'] = 'theme=standard&component=core&rev=5&image=u/f1';
  93          $_SERVER['REQUEST_URI'] = '/moodle/theme/image.php?theme=standard&component=core&rev=5&image=u/f1';
  94          $_SERVER['SCRIPT_NAME'] = '/moodle/theme/image.php';
  95          $this->assertSame('', min_get_slash_argument());
  96  
  97          $_SERVER = array();
  98          $_SERVER['SERVER_SOFTWARE'] = 'Apache/2.2.22 (Unix)';
  99          $_SERVER['QUERY_STRING'] = '';
 100          $_SERVER['REQUEST_URI'] = '/moodle/theme/image.php/standard/core/5/u/f1';
 101          $_SERVER['PATH_INFO'] = '/standard/core/5/u/f1';
 102          $_SERVER['SCRIPT_NAME'] = '/moodle/theme/image.php';
 103          $_GET = array();
 104          $this->assertSame('/standard/core/5/u/f1', min_get_slash_argument());
 105  
 106          // IIS no url rewriting.
 107          $_SERVER = array();
 108          $_SERVER['SERVER_SOFTWARE'] = 'Microsoft-IIS/7.0';
 109          $_SERVER['QUERY_STRING'] = '';
 110          $_SERVER['REQUEST_URI'] = '/moodle/theme/image.php/standard/core/5/u/f1';
 111          $_SERVER['PATH_INFO'] = '/standard/core/5/u/f1';
 112          $_SERVER['SCRIPT_NAME'] = '/moodle/theme/image.php';
 113          $_GET = array();
 114          $this->assertSame('/standard/core/5/u/f1', min_get_slash_argument());
 115  
 116          // IIS with url rewriting.
 117          $_SERVER = array();
 118          $_SERVER['SERVER_SOFTWARE'] = 'Microsoft-IIS/7.0';
 119          $_SERVER['QUERY_STRING'] = 'file=/standard/core/5/u/f1';
 120          $_SERVER['REQUEST_URI'] = '/moodle/theme/image.php/standard/core/5/u/f1';
 121          $_SERVER['PATH_INFO'] = '/';
 122          $_SERVER['SCRIPT_NAME'] = '/moodle/theme/image.php';
 123          $_GET = array();
 124          $_GET['file'] = '/standard/core/5/u/f1';
 125          $this->assertSame('/standard/core/5/u/f1', min_get_slash_argument());
 126  
 127          $_SERVER = array();
 128          $_SERVER['SERVER_SOFTWARE'] = 'Weird server';
 129          $_SERVER['QUERY_STRING'] = '';
 130          $_SERVER['REQUEST_URI'] = '/moodle/theme/image.php/standard/core/5/u/f1';
 131          $_SERVER['PATH_INFO'] = '/moodle/theme/image.php/standard/core/5/u/f1';
 132          $_SERVER['SCRIPT_NAME'] = '/moodle/theme/image.php';
 133          $_GET = array();
 134          $this->assertSame('/standard/core/5/u/f1', min_get_slash_argument());
 135  
 136          $_SERVER = array();
 137          $_SERVER['SERVER_SOFTWARE'] = 'Hacker server';
 138          $_SERVER['QUERY_STRING'] = '';
 139          $_SERVER['REQUEST_URI'] = '/moodle/theme/image.php/standard/core/5/u/f1';
 140          $_SERVER['PATH_INFO'] = '/moodle/theme/image.php/standard\\core/..\\../5/u/f1';
 141          $_SERVER['SCRIPT_NAME'] = '/moodle/theme/image.php';
 142          $_GET = array();
 143          // Windows dir separators are removed, multiple ... gets collapsed to one .
 144          $this->assertSame('/standardcore/./5/u/f1', min_get_slash_argument());
 145      }
 146  
 147      /**
 148       * Test the min_get_minimum_version function.
 149       *
 150       * @covers ::min_get_minimum_version
 151       */
 152      public function test_min_get_minimum_version(): void {
 153          // This is fairly hard to write a test for, but we can at least check that it returns a number
 154          // greater than the version when the feature was first introduced.
 155          $firstintroduced = 1621209600; // Equivalent to 20210517 00:00:00 GMT.
 156          $this->assertGreaterThanOrEqual($firstintroduced, min_get_minimum_revision());
 157      }
 158  
 159      /**
 160       * Test the min_get_maximum_version function.
 161       *
 162       * @covers ::min_get_maximum_version
 163       */
 164      public function test_min_get_maximum_version(): void {
 165          // The maximum version should be set to a time in the near future.
 166          // This is currently defined as "in the next minute".
 167          // Note: We use a 65 second window to allow for slow test runners.
 168          $this->assertGreaterThan(time(), min_get_maximum_revision());
 169          $this->assertLessThanOrEqual(time() + 65, min_get_maximum_revision());
 170      }
 171  
 172      /**
 173       * Test the min_is_revision_valid_and_current function.
 174       *
 175       * @covers ::min_is_revision_valid_and_current
 176       * @dataProvider min_is_revision_valid_and_current_provider
 177       */
 178      public function test_min_is_revision_valid_and_current(int $revision, bool $expected): void {
 179          $this->assertEquals($expected, min_is_revision_valid_and_current($revision));
 180      }
 181  
 182      /**
 183       * Data provider for the min_is_revision_valid_and_current tests.
 184       *
 185       * @return array
 186       */
 187      public function min_is_revision_valid_and_current_provider(): array {
 188          return [
 189              'Negative value' => [-1, false],
 190              'Empty value' => [0, false],
 191              'A time before the minimum accepted value' => [min_get_minimum_revision() - 1, false],
 192              'The minimum accepted value' => [min_get_minimum_revision(), true],
 193              'The current time' => [time(), true],
 194              // Note: We have to be careful using time values because the data provider is run at the start of the phpunit run,
 195              // but the test may not be run for some time.
 196              // On a slower machine and/or database, this could be several hours.
 197              // For a more specific time we must have a specific test function.
 198              'A time in the future' => [time() + DAYSECS, false]
 199          ];
 200      }
 201  
 202  
 203      /**
 204       * Test the min_is_revision_valid_and_current function with close times.
 205       *
 206       * Note: These tests are incompatible with data providers.
 207       *
 208       * @covers ::min_is_revision_valid_and_current
 209       */
 210      public function test_min_is_revision_valid_and_current_close_proximity(): void {
 211          // A time in the near future.
 212          $this->assertTrue(min_is_revision_valid_and_current(time() + 55));
 213  
 214          // A time in the too-far future.
 215          $this->assertFalse(min_is_revision_valid_and_current(time() + 70));
 216  
 217      }
 218  }