lib/tests/weblib_test.php

   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 /**
  18  * Weblib tests.
  19  *
  20  * @package    core
  21  * @category   phpunit
  22  * @copyright  &copy; 2006 The Open University
  23  * @author     T.J.Hunt@open.ac.uk
  24  * @license    http://www.gnu.org/copyleft/gpl.html GNU Public License
  25  */
  26
  27 defined('MOODLE_INTERNAL') || die();
  28
  29
  30 class core_weblib_testcase extends advanced_testcase {
  31
  32     public function test_format_string() {
  33         global $CFG;
  34
  35         // Ampersands.
  36         $this->assertSame("&amp; &amp;&amp;&amp;&amp;&amp; &amp;&amp;", format_string("& &&&&& &&"));
  37         $this->assertSame("ANother &amp; &amp;&amp;&amp;&amp;&amp; Category", format_string("ANother & &&&&& Category"));
  38         $this->assertSame("ANother &amp; &amp;&amp;&amp;&amp;&amp; Category", format_string("ANother & &&&&& Category", true));
  39         $this->assertSame("Nick's Test Site &amp; Other things", format_string("Nick's Test Site & Other things", true));
  40         $this->assertSame("& < > \" '", format_string("& < > \" '", true, ['escape' => false]));
  41
  42         // String entities.
  43         $this->assertSame("&quot;", format_string("&quot;"));
  44
  45         // Digital entities.
  46         $this->assertSame("&11234;", format_string("&11234;"));
  47
  48         // Unicode entities.
  49         $this->assertSame("&#4475;", format_string("&#4475;"));
  50
  51         // < and > signs.
  52         $originalformatstringstriptags = $CFG->formatstringstriptags;
  53
  54         $CFG->formatstringstriptags = false;
  55         $this->assertSame('x &lt; 1', format_string('x < 1'));
  56         $this->assertSame('x &gt; 1', format_string('x > 1'));
  57         $this->assertSame('x &lt; 1 and x &gt; 0', format_string('x < 1 and x > 0'));
  58
  59         $CFG->formatstringstriptags = true;
  60         $this->assertSame('x &lt; 1', format_string('x < 1'));
  61         $this->assertSame('x &gt; 1', format_string('x > 1'));
  62         $this->assertSame('x &lt; 1 and x &gt; 0', format_string('x < 1 and x > 0'));
  63
  64         $CFG->formatstringstriptags = $originalformatstringstriptags;
  65     }
  66
  67     /**
  68      * The format string static caching should include the filters option to make
  69      * sure filters are correctly applied when requested.
  70      */
  71     public function test_format_string_static_caching_with_filters() {
  72         global $CFG;
  73
  74         $this->resetAfterTest(true);
  75         $this->setAdminUser();
  76         $generator = $this->getDataGenerator();
  77         $course = $generator->create_course();
  78         $user = $generator->create_user();
  79         $rawstring = 'Shortname <a href="#">link</a> curseword';
  80         $expectednofilter = strip_links($rawstring);
  81         $expectedfilter = 'Shortname link \*\**';
  82         $striplinks = true;
  83         $context = context_course::instance($course->id);
  84         $options = [
  85             'context' => $context,
  86             'escape' => true,
  87             'filter' => false
  88         ];
  89
  90         $this->setUser($user);
  91
  92         // Format the string without filters. It should just strip the
  93         // links.
  94         $nofilterresult = format_string($rawstring, $striplinks, $options);
  95         $this->assertEquals($expectednofilter, $nofilterresult);
  96
  97         // Add the censor filter. Make sure it's enabled globally.
  98         $CFG->filterall = true;
  99         $CFG->stringfilters = 'censor';
 100         $CFG->filter_censor_badwords = 'curseword';
 101         filter_set_global_state('censor', TEXTFILTER_ON);
 102         filter_set_local_state('censor', $context->id, TEXTFILTER_ON);
 103         // This time we want to apply the filters.
 104         $options['filter'] = true;
 105         $filterresult = format_string($rawstring, $striplinks, $options);
 106         $this->assertRegExp("/$expectedfilter/", $filterresult);
 107
 108         filter_set_local_state('censor', $context->id, TEXTFILTER_OFF);
 109
 110         // Confirm that we get back the cached string. The result should be
 111         // the same as the filtered text above even though we've disabled the
 112         // censor filter in between.
 113         $cachedresult = format_string($rawstring, $striplinks, $options);
 114         $this->assertRegExp("/$expectedfilter/", $cachedresult);
 115     }
 116
 117     public function test_s() {
 118         // Special cases.
 119         $this->assertSame('0', s(0));
 120         $this->assertSame('0', s('0'));
 121         $this->assertSame('0', s(false));
 122         $this->assertSame('', s(null));
 123
 124         // Normal cases.
 125         $this->assertSame('This Breaks &quot; Strict', s('This Breaks " Strict'));
 126         $this->assertSame('This Breaks &lt;a&gt;&quot; Strict&lt;/a&gt;', s('This Breaks <a>" Strict</a>'));
 127
 128         // Unicode characters.
 129         $this->assertSame('Café', s('Café'));
 130         $this->assertSame('一, 二, 三', s('一, 二, 三'));
 131
 132         // Don't escape already-escaped numeric entities. (Note, this behaviour
 133         // may not be desirable. Perhaps we should remove these tests and that
 134         // functionality, but we can only do that if we understand why it was added.)
 135         $this->assertSame('An entity: &#x09ff;.', s('An entity: &#x09ff;.'));
 136         $this->assertSame('An entity: &#1073;.', s('An entity: &#1073;.'));
 137         $this->assertSame('An entity: &amp;amp;.', s('An entity: &amp;.'));
 138         $this->assertSame('Not an entity: &amp;amp;#x09ff;.', s('Not an entity: &amp;#x09ff;.'));
 139
 140         // Test all ASCII characters (0-127).
 141         for ($i = 0; $i <= 127; $i++) {
 142             $character = chr($i);
 143             $result = s($character);
 144             switch ($character) {
 145                 case '"' :
 146                     $this->assertSame('&quot;', $result);
 147                     break;
 148                 case '&' :
 149                     $this->assertSame('&amp;', $result);
 150                     break;
 151                 case "'" :
 152                     $this->assertSame('&#039;', $result);
 153                     break;
 154                 case '<' :
 155                     $this->assertSame('&lt;', $result);
 156                     break;
 157                 case '>' :
 158                     $this->assertSame('&gt;', $result);
 159                     break;
 160                 default:
 161                     $this->assertSame($character, $result);
 162                     break;
 163             }
 164         }
 165     }
 166
 167     public function test_format_text_email() {
 168         $this->assertSame("This is a TEST\n",
 169             format_text_email('<p>This is a <strong>test</strong></p>', FORMAT_HTML));
 170         $this->assertSame("This is a TEST\n",
 171             format_text_email('<p class="frogs">This is a <strong class=\'fishes\'>test</strong></p>', FORMAT_HTML));
 172         $this->assertSame('& so is this',
 173             format_text_email('&amp; so is this', FORMAT_HTML));
 174         $this->assertSame('Two bullets: ' . core_text::code2utf8(8226) . ' ' . core_text::code2utf8(8226),
 175             format_text_email('Two bullets: &#x2022; &#8226;', FORMAT_HTML));
 176         $this->assertSame(core_text::code2utf8(0x7fd2).core_text::code2utf8(0x7fd2),
 177             format_text_email('&#x7fd2;&#x7FD2;', FORMAT_HTML));
 178     }
 179
 180     public function test_obfuscate_email() {
 181         $email = 'some.user@example.com';
 182         $obfuscated = obfuscate_email($email);
 183         $this->assertNotSame($email, $obfuscated);
 184         $back = core_text::entities_to_utf8(urldecode($email), true);
 185         $this->assertSame($email, $back);
 186     }
 187
 188     public function test_obfuscate_text() {
 189         $text = 'Žluťoučký koníček 32131';
 190         $obfuscated = obfuscate_text($text);
 191         $this->assertNotSame($text, $obfuscated);
 192         $back = core_text::entities_to_utf8($obfuscated, true);
 193         $this->assertSame($text, $back);
 194     }
 195
 196     public function test_highlight() {
 197         $this->assertSame('This is <span class="highlight">good</span>',
 198                 highlight('good', 'This is good'));
 199
 200         $this->assertSame('<span class="highlight">span</span>',
 201                 highlight('SpaN', 'span'));
 202
 203         $this->assertSame('<span class="highlight">SpaN</span>',
 204                 highlight('span', 'SpaN'));
 205
 206         $this->assertSame('<span><span class="highlight">span</span></span>',
 207                 highlight('span', '<span>span</span>'));
 208
 209         $this->assertSame('He <span class="highlight">is</span> <span class="highlight">good</span>',
 210                 highlight('good is', 'He is good'));
 211
 212         $this->assertSame('This is <span class="highlight">good</span>',
 213                 highlight('+good', 'This is good'));
 214
 215         $this->assertSame('This is good',
 216                 highlight('-good', 'This is good'));
 217
 218         $this->assertSame('This is goodness',
 219                 highlight('+good', 'This is goodness'));
 220
 221         $this->assertSame('This is <span class="highlight">good</span>ness',
 222                 highlight('good', 'This is goodness'));
 223
 224         $this->assertSame('<p><b>test</b> <b>1</b></p><p><b>1</b></p>',
 225                 highlight('test 1', '<p>test 1</p><p>1</p>', false, '<b>', '</b>'));
 226
 227         $this->assertSame('<p><b>test</b> <b>1</b></p><p><b>1</b></p>',
 228                     highlight('test +1', '<p>test 1</p><p>1</p>', false, '<b>', '</b>'));
 229
 230         $this->assertSame('<p><b>test</b> 1</p><p>1</p>',
 231                     highlight('test -1', '<p>test 1</p><p>1</p>', false, '<b>', '</b>'));
 232     }
 233
 234     public function test_replace_ampersands() {
 235         $this->assertSame("This &amp; that &nbsp;", replace_ampersands_not_followed_by_entity("This & that &nbsp;"));
 236         $this->assertSame("This &amp;nbsp that &nbsp;", replace_ampersands_not_followed_by_entity("This &nbsp that &nbsp;"));
 237     }
 238
 239     public function test_strip_links() {
 240         $this->assertSame('this is a link', strip_links('this is a <a href="http://someaddress.com/query">link</a>'));
 241     }
 242
 243     public function test_wikify_links() {
 244         $this->assertSame('this is a link [ http://someaddress.com/query ]', wikify_links('this is a <a href="http://someaddress.com/query">link</a>'));
 245     }
 246
 247     public function test_clean_text() {
 248         $text = "lala <applet>xx</applet>";
 249         $this->assertSame($text, clean_text($text, FORMAT_PLAIN));
 250         $this->assertSame('lala xx', clean_text($text, FORMAT_MARKDOWN));
 251         $this->assertSame('lala xx', clean_text($text, FORMAT_MOODLE));
 252         $this->assertSame('lala xx', clean_text($text, FORMAT_HTML));
 253     }
 254
 255     public function test_qualified_me() {
 256         global $PAGE, $FULLME, $CFG;
 257         $this->resetAfterTest();
 258
 259         $PAGE = new moodle_page();
 260
 261         $FULLME = $CFG->wwwroot.'/course/view.php?id=1&xx=yy';
 262         $this->assertSame($FULLME, qualified_me());
 263
 264         $PAGE->set_url('/course/view.php', array('id'=>1));
 265         $this->assertSame($CFG->wwwroot.'/course/view.php?id=1', qualified_me());
 266     }
 267
 268     public function test_null_progres_trace() {
 269         $this->resetAfterTest(false);
 270
 271         $trace = new null_progress_trace();
 272         $trace->output('do');
 273         $trace->output('re', 1);
 274         $trace->output('mi', 2);
 275         $trace->finished();
 276         $output = ob_get_contents();
 277         $this->assertSame('', $output);
 278         $this->expectOutputString('');
 279     }
 280
 281     public function test_text_progres_trace() {
 282         $this->resetAfterTest(false);
 283
 284         $trace = new text_progress_trace();
 285         $trace->output('do');
 286         $trace->output('re', 1);
 287         $trace->output('mi', 2);
 288         $trace->finished();
 289         $this->expectOutputString("do\n  re\n    mi\n");
 290     }
 291
 292     public function test_html_progres_trace() {
 293         $this->resetAfterTest(false);
 294
 295         $trace = new html_progress_trace();
 296         $trace->output('do');
 297         $trace->output('re', 1);
 298         $trace->output('mi', 2);
 299         $trace->finished();
 300         $this->expectOutputString("<p>do</p>\n<p>&#160;&#160;re</p>\n<p>&#160;&#160;&#160;&#160;mi</p>\n");
 301     }
 302
 303     public function test_html_list_progress_trace() {
 304         $this->resetAfterTest(false);
 305
 306         $trace = new html_list_progress_trace();
 307         $trace->output('do');
 308         $trace->output('re', 1);
 309         $trace->output('mi', 2);
 310         $trace->finished();
 311         $this->expectOutputString("<ul>\n<li>do<ul>\n<li>re<ul>\n<li>mi</li>\n</ul>\n</li>\n</ul>\n</li>\n</ul>\n");
 312     }
 313
 314     public function test_progres_trace_buffer() {
 315         $this->resetAfterTest(false);
 316
 317         $trace = new progress_trace_buffer(new html_progress_trace());
 318         ob_start();
 319         $trace->output('do');
 320         $trace->output('re', 1);
 321         $trace->output('mi', 2);
 322         $trace->finished();
 323         $output = ob_get_contents();
 324         ob_end_clean();
 325         $this->assertSame("<p>do</p>\n<p>&#160;&#160;re</p>\n<p>&#160;&#160;&#160;&#160;mi</p>\n", $output);
 326         $this->assertSame($output, $trace->get_buffer());
 327
 328         $trace = new progress_trace_buffer(new html_progress_trace(), false);
 329         $trace->output('do');
 330         $trace->output('re', 1);
 331         $trace->output('mi', 2);
 332         $trace->finished();
 333         $this->assertSame("<p>do</p>\n<p>&#160;&#160;re</p>\n<p>&#160;&#160;&#160;&#160;mi</p>\n", $trace->get_buffer());
 334         $this->assertSame("<p>do</p>\n<p>&#160;&#160;re</p>\n<p>&#160;&#160;&#160;&#160;mi</p>\n", $trace->get_buffer());
 335         $trace->reset_buffer();
 336         $this->assertSame('', $trace->get_buffer());
 337         $this->expectOutputString('');
 338     }
 339
 340     public function test_combined_progres_trace() {
 341         $this->resetAfterTest(false);
 342
 343         $trace1 = new progress_trace_buffer(new html_progress_trace(), false);
 344         $trace2 = new progress_trace_buffer(new text_progress_trace(), false);
 345
 346         $trace = new combined_progress_trace(array($trace1, $trace2));
 347         $trace->output('do');
 348         $trace->output('re', 1);
 349         $trace->output('mi', 2);
 350         $trace->finished();
 351         $this->assertSame("<p>do</p>\n<p>&#160;&#160;re</p>\n<p>&#160;&#160;&#160;&#160;mi</p>\n", $trace1->get_buffer());
 352         $this->assertSame("do\n  re\n    mi\n", $trace2->get_buffer());
 353         $this->expectOutputString('');
 354     }
 355
 356     public function test_set_debugging() {
 357         global $CFG;
 358
 359         $this->resetAfterTest();
 360
 361         $this->assertEquals(DEBUG_DEVELOPER, $CFG->debug);
 362         $this->assertTrue($CFG->debugdeveloper);
 363         $this->assertNotEmpty($CFG->debugdisplay);
 364
 365         set_debugging(DEBUG_DEVELOPER, true);
 366         $this->assertEquals(DEBUG_DEVELOPER, $CFG->debug);
 367         $this->assertTrue($CFG->debugdeveloper);
 368         $this->assertNotEmpty($CFG->debugdisplay);
 369
 370         set_debugging(DEBUG_DEVELOPER, false);
 371         $this->assertEquals(DEBUG_DEVELOPER, $CFG->debug);
 372         $this->assertTrue($CFG->debugdeveloper);
 373         $this->assertEmpty($CFG->debugdisplay);
 374
 375         set_debugging(-1);
 376         $this->assertEquals(-1, $CFG->debug);
 377         $this->assertTrue($CFG->debugdeveloper);
 378
 379         set_debugging(DEBUG_ALL);
 380         $this->assertEquals(DEBUG_ALL, $CFG->debug);
 381         $this->assertFalse($CFG->debugdeveloper);
 382
 383         set_debugging(DEBUG_NORMAL);
 384         $this->assertEquals(DEBUG_NORMAL, $CFG->debug);
 385         $this->assertFalse($CFG->debugdeveloper);
 386
 387         set_debugging(DEBUG_MINIMAL);
 388         $this->assertEquals(DEBUG_MINIMAL, $CFG->debug);
 389         $this->assertFalse($CFG->debugdeveloper);
 390
 391         set_debugging(DEBUG_NONE);
 392         $this->assertEquals(DEBUG_NONE, $CFG->debug);
 393         $this->assertFalse($CFG->debugdeveloper);
 394     }
 395
 396     public function test_strip_pluginfile_content() {
 397         $source = <<<SOURCE
 398 Hello!
 399
 400 I'm writing to you from the Moodle Majlis in Muscat, Oman, where we just had several days of Moodle community goodness.
 401
 402 URL outside a tag: https://moodle.org/logo/logo-240x60.gif
 403 Plugin url outside a tag: @@PLUGINFILE@@/logo-240x60.gif
 404
 405 External link 1:<img src='https://moodle.org/logo/logo-240x60.gif' alt='Moodle'/>
 406 External link 2:<img alt="Moodle" src="https://moodle.org/logo/logo-240x60.gif"/>
 407 Internal link 1:<img src='@@PLUGINFILE@@/logo-240x60.gif' alt='Moodle'/>
 408 Internal link 2:<img alt="Moodle" src="@@PLUGINFILE@@logo-240x60.gif"/>
 409 Anchor link 1:<a href="@@PLUGINFILE@@logo-240x60.gif" alt="bananas">Link text</a>
 410 Anchor link 2:<a title="bananas" href="../logo-240x60.gif">Link text</a>
 411 Anchor + ext. img:<a title="bananas" href="../logo-240x60.gif"><img alt="Moodle" src="@@PLUGINFILE@@logo-240x60.gif"/></a>
 412 Ext. anchor + img:<a href="@@PLUGINFILE@@logo-240x60.gif"><img alt="Moodle" src="https://moodle.org/logo/logo-240x60.gif"/></a>
 413 SOURCE;
 414         $expected = <<<EXPECTED
 415 Hello!
 416
 417 I'm writing to you from the Moodle Majlis in Muscat, Oman, where we just had several days of Moodle community goodness.
 418
 419 URL outside a tag: https://moodle.org/logo/logo-240x60.gif
 420 Plugin url outside a tag: @@PLUGINFILE@@/logo-240x60.gif
 421
 422 External link 1:<img src="https://moodle.org/logo/logo-240x60.gif" alt="Moodle" />
 423 External link 2:<img alt="Moodle" src="https://moodle.org/logo/logo-240x60.gif" />
 424 Internal link 1:
 425 Internal link 2:
 426 Anchor link 1:Link text
 427 Anchor link 2:<a title="bananas" href="../logo-240x60.gif">Link text</a>
 428 Anchor + ext. img:<a title="bananas" href="../logo-240x60.gif"></a>
 429 Ext. anchor + img:<img alt="Moodle" src="https://moodle.org/logo/logo-240x60.gif" />
 430 EXPECTED;
 431         $this->assertSame($expected, strip_pluginfile_content($source));
 432     }
 433
 434     public function test_purify_html_ruby() {
 435
 436         $this->resetAfterTest();
 437
 438         $ruby =
 439             "<p><ruby><rb>京都</rb><rp>(</rp><rt>きょうと</rt><rp>)</rp></ruby>は" .
 440             "<ruby><rb>日本</rb><rp>(</rp><rt>にほん</rt><rp>)</rp></ruby>の" .
 441             "<ruby><rb>都</rb><rp>(</rp><rt>みやこ</rt><rp>)</rp></ruby>です。</p>";
 442         $illegal = '<script src="//code.jquery.com/jquery-1.11.3.min.js"></script>';
 443
 444         $cleaned = purify_html($ruby . $illegal);
 445         $this->assertEquals($ruby, $cleaned);
 446
 447     }
 448
 449     /**
 450      * Tests for content_to_text.
 451      *
 452      * @param string    $content   The content
 453      * @param int|false $format    The content format
 454      * @param string    $expected  Expected value
 455      * @dataProvider provider_content_to_text
 456      */
 457     public function test_content_to_text($content, $format, $expected) {
 458         $content = content_to_text($content, $format);
 459         $this->assertEquals($expected, $content);
 460     }
 461
 462     /**
 463      * Data provider for test_content_to_text.
 464      */
 465     public static function provider_content_to_text() {
 466         return array(
 467             array('asd', false, 'asd'),
 468             // Trim '\r\n '.
 469             array("Note that:\n\n3 > 1 ", FORMAT_PLAIN, "Note that:\n\n3 > 1"),
 470             array("Note that:\n\n3 > 1\r\n", FORMAT_PLAIN, "Note that:\n\n3 > 1"),
 471             // Multiple spaces to one.
 472             array('<span class="eheh">京都</span>  ->  hehe', FORMAT_HTML, '京都 -> hehe'),
 473             array('<span class="eheh">京都</span>  ->  hehe', false, '京都 -> hehe'),
 474             array('asd    asd', false, 'asd asd'),
 475             // From markdown to html and html to text.
 476             array('asd __lera__ con la', FORMAT_MARKDOWN, 'asd LERA con la'),
 477             // HTML to text.
 478             array('<p class="frogs">This is a <strong class=\'fishes\'>test</strong></p>', FORMAT_HTML, 'This is a TEST'),
 479             array("<span lang='en' class='multilang'>english</span>
 480 <span lang='ca' class='multilang'>català</span>
 481 <span lang='es' class='multilang'>español</span>
 482 <span lang='fr' class='multilang'>français</span>", FORMAT_HTML, "english català español français")
 483         );
 484     }
 485
 486     /**
 487      * Tests for validate_email() function.
 488      */
 489     public function test_validate_email() {
 490
 491         $this->assertTrue(validate_email('moodle@example.com'));
 492         $this->assertTrue(validate_email('moodle@localhost.local'));
 493         $this->assertTrue(validate_email('verp_email+is=mighty@moodle.org'));
 494         $this->assertTrue(validate_email("but_potentially'dangerous'too@example.org"));
 495         $this->assertTrue(validate_email('posts+AAAAAAAAAAIAAAAAAAAGQQAAAAABFSXz1eM/P/lR2bYyljM+@posts.moodle.org'));
 496
 497         $this->assertFalse(validate_email('moodle@localhost'));
 498         $this->assertFalse(validate_email('"attacker\\" -oQ/tmp/ -X/var/www/vhost/moodle/backdoor.php  some"@email.com'));
 499         $this->assertFalse(validate_email("moodle@example.com>\r\nRCPT TO:<victim@example.com"));
 500     }
 501
 502     /**
 503      * Data provider for test_get_file_argument.
 504      */
 505     public static function provider_get_file_argument() {
 506         return array(
 507             // Serving SCORM content w/o HTTP GET params.
 508             array(array(
 509                     'SERVER_SOFTWARE' => 'Apache',
 510                     'SERVER_PORT' => '80',
 511                     'REQUEST_METHOD' => 'GET',
 512                     'REQUEST_URI' => '/pluginfile.php/3854/mod_scorm/content/1/swf.html',
 513                     'SCRIPT_NAME' => '/pluginfile.php',
 514                     'PATH_INFO' => '/3854/mod_scorm/content/1/swf.html',
 515                 ), 0, '/3854/mod_scorm/content/1/swf.html'),
 516             array(array(
 517                     'SERVER_SOFTWARE' => 'Apache',
 518                     'SERVER_PORT' => '80',
 519                     'REQUEST_METHOD' => 'GET',
 520                     'REQUEST_URI' => '/pluginfile.php/3854/mod_scorm/content/1/swf.html',
 521                     'SCRIPT_NAME' => '/pluginfile.php',
 522                     'PATH_INFO' => '/3854/mod_scorm/content/1/swf.html',
 523                 ), 1, '/3854/mod_scorm/content/1/swf.html'),
 524             // Serving SCORM content w/ HTTP GET 'file' as first param.
 525             array(array(
 526                     'SERVER_SOFTWARE' => 'Apache',
 527                     'SERVER_PORT' => '80',
 528                     'REQUEST_METHOD' => 'GET',
 529                     'REQUEST_URI' => '/pluginfile.php/3854/mod_scorm/content/1/swf.html?file=video_.swf',
 530                     'SCRIPT_NAME' => '/pluginfile.php',
 531                     'PATH_INFO' => '/3854/mod_scorm/content/1/swf.html',
 532                 ), 0, '/3854/mod_scorm/content/1/swf.html'),
 533             array(array(
 534                     'SERVER_SOFTWARE' => 'Apache',
 535                     'SERVER_PORT' => '80',
 536                     'REQUEST_METHOD' => 'GET',
 537                     'REQUEST_URI' => '/pluginfile.php/3854/mod_scorm/content/1/swf.html?file=video_.swf',
 538                     'SCRIPT_NAME' => '/pluginfile.php',
 539                     'PATH_INFO' => '/3854/mod_scorm/content/1/swf.html',
 540                 ), 1, '/3854/mod_scorm/content/1/swf.html'),
 541             // Serving SCORM content w/ HTTP GET 'file' not as first param.
 542             array(array(
 543                     'SERVER_SOFTWARE' => 'Apache',
 544                     'SERVER_PORT' => '80',
 545                     'REQUEST_METHOD' => 'GET',
 546                     'REQUEST_URI' => '/pluginfile.php/3854/mod_scorm/content/1/swf.html?foo=bar&file=video_.swf',
 547                     'SCRIPT_NAME' => '/pluginfile.php',
 548                     'PATH_INFO' => '/3854/mod_scorm/content/1/swf.html',
 549                 ), 0, '/3854/mod_scorm/content/1/swf.html'),
 550             array(array(
 551                     'SERVER_SOFTWARE' => 'Apache',
 552                     'SERVER_PORT' => '80',
 553                     'REQUEST_METHOD' => 'GET',
 554                     'REQUEST_URI' => '/pluginfile.php/3854/mod_scorm/content/1/swf.html?foo=bar&file=video_.swf',
 555                     'SCRIPT_NAME' => '/pluginfile.php',
 556                     'PATH_INFO' => '/3854/mod_scorm/content/1/swf.html',
 557                 ), 1, '/3854/mod_scorm/content/1/swf.html'),
 558             // Serving content from a generic activity w/ HTTP GET 'file', still forcing slash arguments.
 559             array(array(
 560                     'SERVER_SOFTWARE' => 'Apache',
 561                     'SERVER_PORT' => '80',
 562                     'REQUEST_METHOD' => 'GET',
 563                     'REQUEST_URI' => '/pluginfile.php/3854/whatever/content/1/swf.html?file=video_.swf',
 564                     'SCRIPT_NAME' => '/pluginfile.php',
 565                     'PATH_INFO' => '/3854/whatever/content/1/swf.html',
 566                 ), 0, '/3854/whatever/content/1/swf.html'),
 567             array(array(
 568                     'SERVER_SOFTWARE' => 'Apache',
 569                     'SERVER_PORT' => '80',
 570                     'REQUEST_METHOD' => 'GET',
 571                     'REQUEST_URI' => '/pluginfile.php/3854/whatever/content/1/swf.html?file=video_.swf',
 572                     'SCRIPT_NAME' => '/pluginfile.php',
 573                     'PATH_INFO' => '/3854/whatever/content/1/swf.html',
 574                 ), 1, '/3854/whatever/content/1/swf.html'),
 575             // Serving content from a generic activity w/ HTTP GET 'file', still forcing slash arguments (edge case).
 576             array(array(
 577                     'SERVER_SOFTWARE' => 'Apache',
 578                     'SERVER_PORT' => '80',
 579                     'REQUEST_METHOD' => 'GET',
 580                     'REQUEST_URI' => '/pluginfile.php/?file=video_.swf',
 581                     'SCRIPT_NAME' => '/pluginfile.php',
 582                     'PATH_INFO' => '/',
 583                 ), 0, 'video_.swf'),
 584             array(array(
 585                     'SERVER_SOFTWARE' => 'Apache',
 586                     'SERVER_PORT' => '80',
 587                     'REQUEST_METHOD' => 'GET',
 588                     'REQUEST_URI' => '/pluginfile.php/?file=video_.swf',
 589                     'SCRIPT_NAME' => '/pluginfile.php',
 590                     'PATH_INFO' => '/',
 591                 ), 1, 'video_.swf'),
 592             // Serving content from a generic activity w/ HTTP GET 'file', w/o forcing slash arguments.
 593             array(array(
 594                     'SERVER_SOFTWARE' => 'Apache',
 595                     'SERVER_PORT' => '80',
 596                     'REQUEST_METHOD' => 'GET',
 597                     'REQUEST_URI' => '/pluginfile.php?file=%2F3854%2Fwhatever%2Fcontent%2F1%2Fswf.html%3Ffile%3Dvideo_.swf',
 598                     'SCRIPT_NAME' => '/pluginfile.php',
 599                 ), 0, '/3854/whatever/content/1/swf.html?file=video_.swf'),
 600             array(array(
 601                     'SERVER_SOFTWARE' => 'Apache',
 602                     'SERVER_PORT' => '80',
 603                     'REQUEST_METHOD' => 'GET',
 604                     'REQUEST_URI' => '/pluginfile.php?file=%2F3854%2Fwhatever%2Fcontent%2F1%2Fswf.html%3Ffile%3Dvideo_.swf',
 605                     'SCRIPT_NAME' => '/pluginfile.php',
 606                 ), 1, '/3854/whatever/content/1/swf.html?file=video_.swf'),
 607         );
 608     }
 609
 610     /**
 611      * Tests for get_file_argument() function.
 612      *
 613      * @param array $server mockup for $_SERVER.
 614      * @param string $cfgslasharguments slasharguments setting.
 615      * @param string|false $expected Expected value.
 616      * @dataProvider provider_get_file_argument
 617      */
 618     public function test_get_file_argument($server, $cfgslasharguments, $expected) {
 619         global $CFG;
 620
 621         // Overwrite the related settings.
 622         $currentsetting = $CFG->slasharguments;
 623         $CFG->slasharguments = $cfgslasharguments;
 624         // Mock global $_SERVER.
 625         $currentserver = isset($_SERVER) ? $_SERVER : null;
 626         $_SERVER = $server;
 627         initialise_fullme();
 628         if ($_SERVER['REQUEST_METHOD'] !== 'GET') {
 629             $this->fail('Only HTTP GET mocked request allowed.');
 630         }
 631         if (empty($_SERVER['REQUEST_URI'])) {
 632             $this->fail('Invalid HTTP GET mocked request.');
 633         }
 634         // Mock global $_GET.
 635         $currentget = isset($_GET) ? $_GET : null;
 636         $_GET = array();
 637         $querystring = parse_url($_SERVER['REQUEST_URI'], PHP_URL_QUERY);
 638         if (!empty($querystring)) {
 639             $_SERVER['QUERY_STRING'] = $querystring;
 640             parse_str($querystring, $_GET);
 641         }
 642
 643         $this->assertEquals($expected, get_file_argument());
 644
 645         // Restore the current settings and global values.
 646         $CFG->slasharguments = $currentsetting;
 647         if (is_null($currentserver)) {
 648             unset($_SERVER);
 649         } else {
 650             $_SERVER = $currentserver;
 651         }
 652         if (is_null($currentget)) {
 653             unset($_GET);
 654         } else {
 655             $_GET = $currentget;
 656         }
 657     }
 658
 659     /**
 660      * Tests for extract_draft_file_urls_from_text() function.
 661      */
 662     public function test_extract_draft_file_urls_from_text() {
 663         global $CFG;
 664
 665         $url1 = "{$CFG->wwwroot}/draftfile.php/5/user/draft/99999999/test1.jpg";
 666         $url2 = "{$CFG->wwwroot}/draftfile.php/5/user/draft/99999998/test2.jpg";
 667
 668         $html = "<p>This is a test.</p><p><img src=\"${url1}\" alt=\"\" role=\"presentation\"></p>
 669                 <br>Test content.<p></p><p><img src=\"{$url2}\" alt=\"\" width=\"2048\" height=\"1536\"
 670                 role=\"presentation\" class=\"img-responsive atto_image_button_text-bottom\"><br></p>";
 671         $draftareas = array(
 672             array(
 673                 'urlbase' => 'draftfile.php',
 674                 'contextid' => '5',
 675                 'component' => 'user',
 676                 'filearea' => 'draft',
 677                 'itemid' => '99999999',
 678                 'filename' => 'test1.jpg',
 679                 0 => "{$CFG->wwwroot}/draftfile.php/5/user/draft/99999999/test1.jpg",
 680                 1 => 'draftfile.php',
 681                 2 => '5',
 682                 3 => 'user',
 683                 4 => 'draft',
 684                 5 => '99999999',
 685                 6 => 'test1.jpg'
 686             ),
 687             array(
 688                 'urlbase' => 'draftfile.php',
 689                 'contextid' => '5',
 690                 'component' => 'user',
 691                 'filearea' => 'draft',
 692                 'itemid' => '99999998',
 693                 'filename' => 'test2.jpg',
 694                 0 => "{$CFG->wwwroot}/draftfile.php/5/user/draft/99999998/test2.jpg",
 695                 1 => 'draftfile.php',
 696                 2 => '5',
 697                 3 => 'user',
 698                 4 => 'draft',
 699                 5 => '99999998',
 700                 6 => 'test2.jpg'
 701             )
 702         );
 703         $extracteddraftareas = extract_draft_file_urls_from_text($html, false, 5, 'user', 'draft');
 704         $this->assertEquals($draftareas, $extracteddraftareas);
 705     }
 706 }