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Differences Between: [Versions 310 and 401] [Versions 39 and 401]

   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  /**
  20   * Tests our html2text hacks
  21   *
  22   * Note: includes original tests from testweblib.php
  23   *
  24   * @package    core
  25   * @category   test
  26   * @copyright  2012 Petr Skoda {@link http://skodak.org}
  27   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  28   */
  29  class html2text_test extends \basic_testcase {
  30  
  31      /**
  32       * ALT as image replacements.
  33       */
  34      public function test_images() {
  35          $this->assertSame('[edit]', html_to_text('<img src="edit.png" alt="edit" />'));
  36  
  37          $text = 'xx<img src="gif.gif" alt="some gif" />xx';
  38          $result = html_to_text($text, null, false, false);
  39          $this->assertSame($result, 'xx[some gif]xx');
  40      }
  41  
  42      /**
  43       * No magic quotes messing.
  44       */
  45      public function test_no_strip_slashes() {
  46          $this->assertSame('[\edit]', html_to_text('<img src="edit.png" alt="\edit" />'));
  47  
  48          $text = '\\magic\\quotes\\are\\\\horrible';
  49          $result = html_to_text($text, null, false, false);
  50          $this->assertSame($result, $text);
  51      }
  52  
  53      /**
  54       * core_text integration.
  55       */
  56      public function test_core_text() {
  57          $text = '<strong>Žluťoučký koníček</strong>';
  58          $result = html_to_text($text, null, false, false);
  59          $this->assertSame($result, 'ŽLUŤOUČKÝ KONÍČEK');
  60      }
  61  
  62      /**
  63       * Protect 0.
  64       */
  65      public function test_zero() {
  66          $text = '0';
  67          $result = html_to_text($text, null, false, false);
  68          $this->assertSame($result, $text);
  69  
  70          $this->assertSame('0', html_to_text('0'));
  71      }
  72  
  73      /**
  74       * Test the links list enumeration.
  75       */
  76      public function test_build_link_list() {
  77  
  78          // Note the trailing whitespace left intentionally in the text after first link.
  79          $text = 'Total of <a title="List of integrated issues"
  80              href="http://tr.mdl.org/sh.jspa?r=1&j=p+%3D+%22I+d%22+%3D">     ' . '
  81              <strong>27 issues</strong></a> and <a href="http://another.url/?f=a&amp;b=2">some</a> other
  82  have been fixed <strong><a href="http://third.url/view.php">last week</a></strong>';
  83  
  84          // Do not collect links.
  85          $result = html_to_text($text, 5000, false);
  86          $this->assertSame('Total of 27 ISSUES and some other have been fixed LAST WEEK', $result);
  87  
  88          // Collect and enumerate links.
  89          $result = html_to_text($text, 5000, true);
  90          $this->assertSame(0, strpos($result, 'Total of 27 ISSUES [1] and some [2] other have been fixed LAST WEEK [3]'));
  91          $this->assertSame(false, strpos($result, '[0]'));
  92          $this->assertSame(1, preg_match('|^'.preg_quote('[1] http://tr.mdl.org/sh.jspa?r=1&j=p+%3D+%22I+d%22+%3D').'$|m', $result));
  93          $this->assertSame(1, preg_match('|^'.preg_quote('[2] http://another.url/?f=a&amp;b=2').'$|m', $result));
  94          $this->assertSame(1, preg_match('|^'.preg_quote('[3] http://third.url/view.php').'$|m', $result));
  95          $this->assertSame(false, strpos($result, '[4]'));
  96  
  97          // Test multiple occurrences of the same URL.
  98          $text = '<p>See <a href="http://moodle.org">moodle.org</a>,
  99              <a href="http://www.google.fr">google</a>, <a href="http://www.univ-lemans.fr">univ-lemans</a>
 100              and <a href="http://www.google.fr">google</a>.
 101              Also try <a href="https://www.google.fr">google via HTTPS</a>.';
 102          $result = html_to_text($text, 5000, true);
 103          $this->assertSame(0, strpos($result, 'See moodle.org [1], google [2], univ-lemans [3] and google [2]. Also try google via HTTPS [4].'));
 104          $this->assertSame(false, strpos($result, '[0]'));
 105          $this->assertSame(1, preg_match('|^'.preg_quote('[1] http://moodle.org').'$|m', $result));
 106          $this->assertSame(1, preg_match('|^'.preg_quote('[2] http://www.google.fr').'$|m', $result));
 107          $this->assertSame(1, preg_match('|^'.preg_quote('[3] http://www.univ-lemans.fr').'$|m', $result));
 108          $this->assertSame(1, preg_match('|^'.preg_quote('[4] https://www.google.fr').'$|m', $result));
 109          $this->assertSame(false, strpos($result, '[5]'));
 110      }
 111  
 112      /**
 113       * Various invalid HTML typed by users that ignore html strict.
 114       **/
 115      public function test_invalid_html() {
 116          $text = 'Gin & Tonic';
 117          $result = html_to_text($text, null, false, false);
 118          $this->assertSame($result, $text);
 119  
 120          $text = 'Gin > Tonic';
 121          $result = html_to_text($text, null, false, false);
 122          $this->assertSame($result, $text);
 123  
 124          $text = 'Gin < Tonic';
 125          $result = html_to_text($text, null, false, false);
 126          $this->assertSame($result, $text);
 127      }
 128  
 129      /**
 130       * Basic text formatting.
 131       */
 132      public function test_simple() {
 133          $this->assertSame("_Hello_ WORLD!\n", html_to_text('<p><i>Hello</i> <b>world</b>!</p>'));
 134          $this->assertSame("All the WORLD’S a stage.\n\n-- William Shakespeare\n", html_to_text('<p>All the <strong>world’s</strong> a stage.</p><p>-- William Shakespeare</p>'));
 135          $this->assertSame("HELLO WORLD!\n\n", html_to_text('<h1>Hello world!</h1>'));
 136          $this->assertSame("Hello\nworld!", html_to_text('Hello<br />world!'));
 137      }
 138  
 139      /**
 140       * Test line wrapping.
 141       */
 142      public function test_text_nowrap() {
 143          $long = "Here is a long string, more than 75 characters long, since by default html_to_text wraps text at 75 chars.";
 144          $wrapped = "Here is a long string, more than 75 characters long, since by default\nhtml_to_text wraps text at 75 chars.";
 145          $this->assertSame($long, html_to_text($long, 0));
 146          $this->assertSame($wrapped, html_to_text($long));
 147      }
 148  
 149      /**
 150       * Whitespace removal.
 151       */
 152      public function test_trailing_whitespace() {
 153          $this->assertSame('With trailing whitespace and some more text', html_to_text("With trailing whitespace   \nand some   more text", 0));
 154      }
 155  
 156      /**
 157       * PRE parsing.
 158       */
 159      public function test_html_to_text_pre_parsing_problem() {
 160          $strorig = 'Consider the following function:<br /><pre><span style="color: rgb(153, 51, 102);">void FillMeUp(char* in_string) {'.
 161              '<br />  int i = 0;<br />  while (in_string[i] != \'\0\') {<br />    in_string[i] = \'X\';<br />    i++;<br />  }<br />'.
 162              '}</span></pre>What would happen if a non-terminated string were input to this function?<br /><br />';
 163  
 164          // Note, the spaces in the <pre> section are Unicode NBSPs - they may not be displayed in your editor.
 165          $strconv = 'Consider the following function:
 166  
 167  void FillMeUp(char* in_string) {
 168    int i = 0;
 169    while (in_string[i] != \'\0\') {
 170      in_string[i] = \'X\';
 171      i++;
 172    }
 173  }
 174  What would happen if a non-terminated string were input to this function?
 175  
 176  ';
 177  
 178          $this->assertSame($strconv, html_to_text($strorig));
 179      }
 180  
 181      /**
 182       * Scripts should be stripped.
 183       */
 184      public function test_strip_scripts() {
 185          $this->assertSame('Interesting text',
 186                  html_to_text('Interesting <script type="text/javascript">var what_a_mess = "Yuck!";</script> text', 0));
 187      }
 188  }