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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | daniel-mar | 1 | <?php |
| 2 | |||
| 3 | class w3c_fragment_checker { |
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| 4 | |||
| 5 | public static function perform_external_w3c_check($fragment, $validator_url) { |
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| 6 | if ($fragment == '') return true; // Damit es nicht zu einer 302-Endlosschleife kommt, wenn Fragment='' ist! |
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| 7 | |||
| 8 | $w3c_check_conn = new HTTPClass; |
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| 9 | |||
| 10 | $w3c_check_conn->connection_checker = 'inetconn_ok'; |
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| 11 | $w3c_check_conn->error_level = HTTPC_ERRLVL_FATAL_ERRORS; |
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| 12 | $w3c_check_conn->use_post_method = true; |
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| 13 | |||
| 14 | $w3c_check_conn->user_agent = WBUserAgent(); |
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| 15 | |||
| 16 | $w3c_check_conn->additional_fields['Referer'] = $validator_url; |
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| 17 | $w3c_check_conn->additional_fields['Content-type'] = 'application/x-www-form-urlencoded'; |
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| 18 | |||
| 19 | $w3c_check_conn_res = $w3c_check_conn->execute_http_request($validator_url.'check', 'fragment='.urlencode($fragment)); |
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| 20 | |||
| 21 | if ($w3c_check_conn_res->error != HTTPC_NO_ERROR) { |
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| 22 | return NULL; // Fehler |
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| 23 | } else { |
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| 24 | /* $pos = strpos($w3c_check_conn_res->content, '<h2 class="valid">'); |
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| 25 | if ($pos !== false) { |
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| 26 | $ret_status = 'Valid'; |
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| 27 | } else { |
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| 28 | $pos = strpos($w3c_check_conn_res->content, '<h2 id="results" class="invalid">'); |
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| 29 | if ($pos !== false) { |
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| 30 | $ret_status = 'Invalid'; |
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| 31 | } else { |
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| 32 | $ret_status = 'Abort'; |
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| 33 | } |
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| 34 | } */ |
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| 35 | |||
| 36 | // Ab Version 0.8.0 wäre x-w3c-validator-status = Abort. |
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| 37 | // Darunter ist x-w3c-validator-status gar nicht vorhanden |
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| 38 | if (isset($w3c_check_conn_res->header['x-w3c-validator-status'])) { |
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| 39 | $ret_status = $w3c_check_conn_res->header['x-w3c-validator-status']; |
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| 40 | } else { |
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| 41 | $ret_status = 'Abort'; |
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| 42 | } |
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| 43 | |||
| 44 | if ($ret_status == 'Valid') { |
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| 45 | return true; |
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| 46 | } else if ($ret_status == 'Invalid') { |
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| 47 | return false; |
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| 48 | } else { |
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| 49 | return NULL; // Fehler |
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| 50 | } |
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| 51 | } |
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| 52 | } |
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| 53 | |||
| 54 | public static function local_w3c_check_possible() { |
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| 55 | @include_once 'Services/W3C/HTMLValidator.php'; |
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| 56 | return class_exists('Services_W3C_HTMLValidator'); |
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| 57 | } |
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| 58 | |||
| 59 | public static function perform_local_w3c_check($fragment) { |
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| 60 | if ($fragment == '') return true; // Damit diese Funktion kein anderes Ergebnis als perform_external_w3c_check() liefert. |
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| 61 | |||
| 62 | // Es gibt extrem viele Strict-Fehler im PEAR... Wir dürfen kein E_STRICT hier verwenden |
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| 63 | $old_err_rep = ini_get('error_reporting'); |
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| 64 | |||
| 65 | // PEAR hat einen Notice Fehler, wenn ein Nicht-UTF8-Zeichen in der HTML vorhanden ist |
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| 66 | // error_reporting(E_NOTICE); |
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| 67 | error_reporting(E_ALL ^ E_NOTICE); |
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| 68 | |||
| 69 | require_once 'Services/W3C/HTMLValidator.php'; |
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| 70 | $validator = new Services_W3C_HTMLValidator(); |
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| 71 | $res = $validator->validateFragment($fragment); |
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| 72 | |||
| 73 | ini_set('error_reporting', $old_err_rep); |
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| 74 | |||
| 75 | if (isset($res->validity)) { |
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| 76 | return $res->validity; |
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| 77 | } else { |
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| 78 | return null; |
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| 79 | } |
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| 80 | } |
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| 81 | |||
| 82 | public static function auto_perform_w3c_check($fragment, $validator_url, $force_external_check = false) { |
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| 83 | if ((self::local_w3c_check_possible()) && (!$force_external_check)) { |
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| 84 | return self::perform_local_w3c_check($fragment); |
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| 85 | } else { |
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| 86 | return self::perform_external_w3c_check($fragment, $validator_url); |
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| 87 | } |
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| 88 | } |
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| 89 | } |
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| 90 | |||
| 91 | ?> |