Created
February 28, 2012 09:30
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output_add_rewrite_var()の注意点
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| <?php | |
| assert_options(ASSERT_ACTIVE, 1); | |
| assert_options(ASSERT_WARNING, 0); | |
| assert_options(ASSERT_CALLBACK, function ($file, $line) { | |
| echo '<pre>' . htmlspecialchars(sprintf("Assertion Failed: at %s[%d]\n", $file, $line)) . '</pre>'; | |
| }); | |
| //$name = '" /><script>alert("Hello!");</script><input type="hidden" name="'; // urlencode()もHTMLエスケープもされない | |
| $name = 'token'; | |
| $value = '"<Baz & Qux>"'; // urlencode()され、HTMLエスケープされない | |
| ini_set('url_rewriter.tags', 'form='); | |
| output_add_rewrite_var($name, $value); | |
| if (isset($_POST['submit']) && isset($_POST[$name])) { | |
| assert(strcmp($_POST[$name], rawurlencode($value)) === 0); // failed. | |
| assert(strcmp($_POST[$name], $value) === 0); // failed. | |
| assert(strcmp($_POST[$name], urlencode($value)) === 0); // OK | |
| } | |
| ?> | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| </head> | |
| <body> | |
| <form method="post"> | |
| <input type="submit" name="submit" value="submit" /> | |
| </form> | |
| </body> | |
| </html> |
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