PHP Strings::checkEncoding方法代码示例

 /**
  * Sets a header.
  * @param  string
  * @param  string|array  value or pair email => name
  * @param  bool
  * @return self
  */
 public function setHeader($name, $value, $append = FALSE)
 {
     if (!$name || preg_match('#[^a-z0-9-]#i', $name)) {
         throw new Nette\InvalidArgumentException("Header name must be non-empty alphanumeric string, '{$name}' given.");
     }
     if ($value == NULL) {
         // intentionally ==
         if (!$append) {
             unset($this->headers[$name]);
         }
     } elseif (is_array($value)) {
         // email
         $tmp =& $this->headers[$name];
         if (!$append || !is_array($tmp)) {
             $tmp = array();
         }
         foreach ($value as $email => $recipient) {
             if ($recipient !== NULL && !Strings::checkEncoding($recipient)) {
                 Nette\Utils\Validators::assert($recipient, 'unicode', "header '{$name}'");
             }
             if (preg_match('#[\\r\\n]#', $recipient)) {
                 throw new Nette\InvalidArgumentException('Name must not contain line separator.');
             }
             Nette\Utils\Validators::assert($email, 'email', "header '{$name}'");
             $tmp[$email] = $recipient;
         }
     } else {
         $value = (string) $value;
         if (!Strings::checkEncoding($value)) {
             throw new Nette\InvalidArgumentException('Header is not valid UTF-8 string.');
         }
         $this->headers[$name] = preg_replace('#[\\r\\n]+#', ' ', $value);
     }
     return $this;
 }

 /**
  * Process all {macros} and <tags/>.
  * @param  string
  * @return string
  */
 public function parse($s)
 {
     if (!Strings::checkEncoding($s)) {
         throw new ParseException('Template is not valid UTF-8 stream.');
     }
     $s = str_replace("\r\n", "\n", $s);
     $this->templateId = Strings::random();
     $this->input =& $s;
     $this->offset = 0;
     $this->output = '';
     $this->htmlNodes = $this->macroNodes = array();
     foreach ($this->macroHandlers as $handler) {
         $handler->initialize($this);
     }
     $len = strlen($s);
     try {
         while ($this->offset < $len) {
             $matches = $this->{"context" . $this->context[0]}();
             if (!$matches) {
                 // EOF
                 break;
             } elseif (!empty($matches['comment'])) {
                 // {* *}
             } elseif (!empty($matches['macro'])) {
                 // {macro}
                 list($macroName, $macroArgs, $macroModifiers) = $this->parseMacro($matches['macro']);
                 $isRightmost = $this->offset >= $len || $this->input[$this->offset] === "\n";
                 $this->writeMacro($macroName, $macroArgs, $macroModifiers, $isRightmost);
             } else {
                 // common behaviour
                 $this->output .= $matches[0];
             }
         }
     } catch (ParseException $e) {
         if (!$e->sourceLine) {
             $e->sourceLine = $this->getLine();
         }
         throw $e;
     }
     $this->output .= substr($this->input, $this->offset);
     foreach ($this->htmlNodes as $node) {
         if (!empty($node->attrs)) {
             throw new ParseException("Missing end tag </{$node->name}> for macro-attribute " . self::N_PREFIX . implode(' and ' . self::N_PREFIX, array_keys($node->attrs)) . ".", 0, $this->getLine());
         }
     }
     $prologs = $epilogs = '';
     foreach ($this->macroHandlers as $handler) {
         $res = $handler->finalize();
         $prologs .= isset($res[0]) ? "<?php {$res['0']}\n?>" : '';
         $epilogs .= isset($res[1]) ? "<?php {$res['1']}\n?>" : '';
     }
     $this->output = ($prologs ? $prologs . "<?php\n//\n// main template\n//\n?>\n" : '') . $this->output . $epilogs;
     if ($this->macroNodes) {
         throw new ParseException("There are unclosed macros.", 0, $this->getLine());
     }
     return $this->output;
 }

 /**
  * Process all {macros} and <tags/>.
  * @param  string
  * @return string
  */
 public function parse($s)
 {
     if (!Strings::checkEncoding($s)) {
         throw new ParseException('Template is not valid UTF-8 stream.');
     }
     if (!$this->macroRe) {
         $this->setDelimiters('\\{(?![\\s\'"{}*])', '\\}');
     }
     $this->handler->initialize($this);
     $s = str_replace("\r\n", "\n", $s);
     $s = "\n" . $s;
     $this->input =& $s;
     $this->offset = 0;
     $this->output = '';
     $this->htmlNodes = $this->macroNodes = array();
     $len = strlen($s);
     while ($this->offset < $len) {
         $matches = $this->{"context{$this->context}"}();
         if (!$matches) {
             // EOF
             break;
         } elseif (!empty($matches['comment'])) {
             // {* *}
         } elseif (!empty($matches['macro'])) {
             // {macro}
             list($macroName, $macroArgs, $macroModifiers) = $this->parseMacro($matches['macro']);
             $code = $this->macro($macroName, $macroArgs, $macroModifiers);
             $nl = isset($matches['newline']) ? "\n" : '';
             if ($nl && $matches['indent'] && strncmp($code, '<?php echo ', 11)) {
                 // the only macro on line "without" output
                 $this->output .= "\n" . $code;
                 // preserve new line from 'indent', remove indentation
             } else {
                 // double newline to avoid newline eating by PHP
                 $this->output .= $matches['indent'] . $code . (substr($code, -2) === '?>' && $this->output !== '' ? $nl : '');
             }
         } else {
             // common behaviour
             $this->output .= $matches[0];
         }
     }
     $this->output .= substr($this->input, $this->offset);
     foreach ($this->htmlNodes as $node) {
         if (!$node instanceof MacroNode && !empty($node->attrs)) {
             throw new ParseException("Missing end tag </{$node->name}> for macro-attribute " . self::HTML_PREFIX . implode(' and ' . self::HTML_PREFIX, array_keys($node->attrs)) . ".", 0, $this->line);
         }
     }
     $this->handler->finalize($this->output);
     if ($this->macroNodes) {
         throw new ParseException("There are unclosed macros.", 0, $this->line);
     }
     return $this->output;
 }

 /**
  * @param CurlWrapper $curl
  * @return string
  */
 public static function convertEncoding(CurlWrapper $curl)
 {
     if (Strings::checkEncoding($response = $curl->response)) {
         return Strings::normalize($response);
     }
     if ($charset = static::charsetFromContentType($curl->info['content_type'])) {
         $response = @iconv($charset, 'UTF-8', $response);
     } else {
         if ($contentType = Strings::match($response, '~<(?P<el>meta[^>]+Content-Type[^>]+)>~i')) {
             foreach (Nette\Utils\Html::el($contentType['el'])->attrs as $attr => $value) {
                 if (strtolower($attr) !== 'content') {
                     continue;
                 }
                 if ($charset = static::charsetFromContentType($value)) {
                     $response = @iconv($charset, 'UTF-8', $response);
                     $response = static::fixContentTypeMeta($response);
                     break;
                 }
             }
         }
     }
     return Strings::normalize($response);
 }

 /**
  * Sets a header.
  * @param  string
  * @param  string|array  value or pair email => name
  * @param  bool
  * @return MimePart  provides a fluent interface
  */
 public function setHeader($name, $value, $append = FALSE)
 {
     if (!$name || preg_match('#[^a-z0-9-]#i', $name)) {
         throw new Nette\InvalidArgumentException("Header name must be non-empty alphanumeric string, '{$name}' given.");
     }
     if ($value == NULL) {
         // intentionally ==
         if (!$append) {
             unset($this->headers[$name]);
         }
     } elseif (is_array($value)) {
         // email
         $tmp =& $this->headers[$name];
         if (!$append || !is_array($tmp)) {
             $tmp = array();
         }
         foreach ($value as $email => $name) {
             if ($name !== NULL && !Strings::checkEncoding($name)) {
                 throw new Nette\InvalidArgumentException("Name is not valid UTF-8 string.");
             }
             if (!preg_match('#^[^@",\\s]+@[^@",\\s]+\\.[a-z]{2,10}$#i', $email)) {
                 throw new Nette\InvalidArgumentException("Email address '{$email}' is not valid.");
             }
             if (preg_match('#[\\r\\n]#', $name)) {
                 throw new Nette\InvalidArgumentException("Name must not contain line separator.");
             }
             $tmp[$email] = $name;
         }
     } else {
         $value = (string) $value;
         if (!Strings::checkEncoding($value)) {
             throw new Nette\InvalidArgumentException("Header is not valid UTF-8 string.");
         }
         $this->headers[$name] = preg_replace('#[\\r\\n]+#', ' ', $value);
     }
     return $this;
 }

 /**
  * Process all {macros} and <tags/>.
  * @param  string
  * @return array
  */
 public function parse($input)
 {
     if (substr($input, 0, 3) === "") {
         // BOM
         $input = substr($input, 3);
     }
     if (!Strings::checkEncoding($input)) {
         throw new Nette\InvalidArgumentException('Template is not valid UTF-8 stream.');
     }
     $input = str_replace("\r\n", "\n", $input);
     $this->input = $input;
     $this->output = array();
     $this->offset = 0;
     $this->setSyntax($this->defaultSyntax);
     $this->setContext(self::CONTEXT_TEXT);
     $this->lastHtmlTag = $this->syntaxEndTag = NULL;
     $this->xmlMode = (bool) preg_match('#^<\\?xml\\s#m', $input);
     while ($this->offset < strlen($input)) {
         $matches = $this->{"context" . $this->context[0]}();
         if (!$matches) {
             // EOF
             break;
         } elseif (!empty($matches['comment'])) {
             // {* *}
             $this->addToken(Token::COMMENT, $matches[0]);
         } elseif (!empty($matches['macro'])) {
             // {macro}
             $token = $this->addToken(Token::MACRO_TAG, $matches[0]);
             list($token->name, $token->value, $token->modifiers) = $this->parseMacroTag($matches['macro']);
         }
         $this->filter();
     }
     if ($this->offset < strlen($input)) {
         $this->addToken(Token::TEXT, substr($this->input, $this->offset));
     }
     return $this->output;
 }

 /**
  * Creates current HttpRequest object.
  * @return Request
  */
 public function createHttpRequest()
 {
     // DETECTS URI, base path and script path of the request.
     $url = new UrlScript();
     $url->scheme = !empty($_SERVER['HTTPS']) && strcasecmp($_SERVER['HTTPS'], 'off') ? 'https' : 'http';
     $url->user = isset($_SERVER['PHP_AUTH_USER']) ? $_SERVER['PHP_AUTH_USER'] : '';
     $url->password = isset($_SERVER['PHP_AUTH_PW']) ? $_SERVER['PHP_AUTH_PW'] : '';
     // host & port
     if ((isset($_SERVER[$tmp = 'HTTP_HOST']) || isset($_SERVER[$tmp = 'SERVER_NAME'])) && preg_match('#^([a-z0-9_.-]+|\\[[a-fA-F0-9:]+\\])(:\\d+)?\\z#', $_SERVER[$tmp], $pair)) {
         $url->host = strtolower($pair[1]);
         if (isset($pair[2])) {
             $url->port = (int) substr($pair[2], 1);
         } elseif (isset($_SERVER['SERVER_PORT'])) {
             $url->port = (int) $_SERVER['SERVER_PORT'];
         }
     }
     // path & query
     if (isset($_SERVER['REQUEST_URI'])) {
         // Apache, IIS 6.0
         $requestUrl = $_SERVER['REQUEST_URI'];
     } elseif (isset($_SERVER['ORIG_PATH_INFO'])) {
         // IIS 5.0 (PHP as CGI ?)
         $requestUrl = $_SERVER['ORIG_PATH_INFO'];
         if (isset($_SERVER['QUERY_STRING']) && $_SERVER['QUERY_STRING'] != '') {
             $requestUrl .= '?' . $_SERVER['QUERY_STRING'];
         }
     } else {
         $requestUrl = '';
     }
     $requestUrl = Strings::replace($requestUrl, $this->urlFilters['url']);
     $tmp = explode('?', $requestUrl, 2);
     $url->path = Strings::replace($tmp[0], $this->urlFilters['path']);
     $url->query = isset($tmp[1]) ? $tmp[1] : '';
     // normalized url
     $url->canonicalize();
     $url->path = Strings::fixEncoding($url->path);
     // detect script path
     if (isset($_SERVER['SCRIPT_NAME'])) {
         $script = $_SERVER['SCRIPT_NAME'];
     } elseif (isset($_SERVER['DOCUMENT_ROOT'], $_SERVER['SCRIPT_FILENAME']) && strncmp($_SERVER['DOCUMENT_ROOT'], $_SERVER['SCRIPT_FILENAME'], strlen($_SERVER['DOCUMENT_ROOT'])) === 0) {
         $script = '/' . ltrim(strtr(substr($_SERVER['SCRIPT_FILENAME'], strlen($_SERVER['DOCUMENT_ROOT'])), '\\', '/'), '/');
     } else {
         $script = '/';
     }
     $path = strtolower($url->path) . '/';
     $script = strtolower($script) . '/';
     $max = min(strlen($path), strlen($script));
     for ($i = 0; $i < $max; $i++) {
         if ($path[$i] !== $script[$i]) {
             break;
         } elseif ($path[$i] === '/') {
             $url->scriptPath = substr($url->path, 0, $i + 1);
         }
     }
     // GET, POST, COOKIE
     $useFilter = !in_array(ini_get('filter.default'), array('', 'unsafe_raw')) || ini_get('filter.default_flags');
     parse_str($url->query, $query);
     if (!$query) {
         $query = $useFilter ? filter_input_array(INPUT_GET, FILTER_UNSAFE_RAW) : (empty($_GET) ? array() : $_GET);
     }
     $post = $useFilter ? filter_input_array(INPUT_POST, FILTER_UNSAFE_RAW) : (empty($_POST) ? array() : $_POST);
     $cookies = $useFilter ? filter_input_array(INPUT_COOKIE, FILTER_UNSAFE_RAW) : (empty($_COOKIE) ? array() : $_COOKIE);
     $gpc = (bool) get_magic_quotes_gpc();
     $old = error_reporting(error_reporting() ^ E_NOTICE);
     // remove fucking quotes and check (and optionally convert) encoding
     if ($gpc || $this->encoding) {
         $utf = strcasecmp($this->encoding, 'UTF-8') === 0;
         $list = array(&$query, &$post, &$cookies);
         while (list($key, $val) = each($list)) {
             foreach ($val as $k => $v) {
                 unset($list[$key][$k]);
                 if ($gpc) {
                     $k = stripslashes($k);
                 }
                 if ($this->encoding && is_string($k) && (preg_match(self::NONCHARS, $k) || preg_last_error())) {
                     // invalid key -> ignore
                 } elseif (is_array($v)) {
                     $list[$key][$k] = $v;
                     $list[] =& $list[$key][$k];
                 } else {
                     if ($gpc && !$useFilter) {
                         $v = stripSlashes($v);
                     }
                     if ($this->encoding) {
                         if ($utf) {
                             $v = Strings::fixEncoding($v);
                         } else {
                             if (!Strings::checkEncoding($v)) {
                                 $v = iconv($this->encoding, 'UTF-8//IGNORE', $v);
                             }
                             $v = html_entity_decode($v, ENT_QUOTES, 'UTF-8');
                         }
                         $v = preg_replace(self::NONCHARS, '', $v);
                     }
                     $list[$key][$k] = $v;
                 }
//.........这里部分代码省略.........

 private static function containsXss(NHtml $script)
 {
     if (!NStrings::checkEncoding($script->getHtml())) {
         return true;
     }
     if (!($dom = self::createDomFromHtml($script))) {
         return true;
     }
     $scripts = $dom->getElementsByTagName('script');
     if ($scripts->length > 1) {
         return true;
     }
     $filteredContent = $scripts->item(0)->textContent;
     if ($script->getHtml() !== $filteredContent) {
         return true;
     }
     return false;
 }

// control characters checker
$checker->tasks[] = function (CodeChecker $checker, $s) {
    if (!Strings::match($s, '#^[^\\x00-\\x08\\x0B\\x0C\\x0E-\\x1F]*+$#')) {
        $checker->error('Contains control characters');
    }
};
// BOM remover
$checker->tasks[] = function (CodeChecker $checker, $s) {
    if (substr($s, 0, 3) === "") {
        $checker->fix('contains BOM');
        return substr($s, 3);
    }
};
// UTF-8 checker
$checker->tasks[] = function (CodeChecker $checker, $s) {
    if (!Strings::checkEncoding($s)) {
        $checker->error('Is not valid UTF-8 file');
    }
};
// invalid phpDoc checker
$checker->tasks[] = function (CodeChecker $checker, $s) {
    if ($checker->is('php,phpt')) {
        foreach (token_get_all($s) as $token) {
            if ($token[0] === T_COMMENT && Strings::match($token[1], '#/\\*\\s.*@[a-z]#isA')) {
                $checker->warning('Missing /** in phpDoc comment', $token[2]);
            }
        }
    }
};
// short PHP 5.4 arrays
if (isset($options['--short-arrays'])) {