public function validate($target)
{
if (!is_string($target)) {
throw new InvalidDataTypeException("Target is not a string, and cannot be validated according to string length!");
}
$len = UTF8::strlen($target, $this->encoding);
if ($len < $this->minLength) {
throw new StringTooShortException("Length of target is too short, min = " . $this->minLength);
} elseif ($len > $this->maxLength) {
if (!$this->chopDown) {
throw new StringTooLongException("Length of target is too long, max = " . $this->maxLength);
} else {
$target = UTF8::substr($target, 0, $this->maxLength, $this->encoding);
}
}
return $target;
}
/**
* Helper function called by preg_replace() on link replacement.
*
* Maintains an internal list of links to be displayed at the end of the
* text, with numeric indices to the original point in the text they
* appeared. Also makes an effort at identifying and handling absolute
* and relative links.
*
* @param string $link URL of the link
* @param string $display Part of the text to associate number with
* @param string|null $linkOverride
*
* @return string
*/
protected function buildLinkList($link, $display, $linkOverride = null)
{
if ($linkOverride) {
$linkMethod = $linkOverride;
} else {
$linkMethod = $this->options['do_links'];
}
// ignored link types
if (preg_match('!^(:?' . $this->options['do_links_ignore'] . ')!i', $link)) {
return $display;
}
if ($linkMethod === 'none') {
return ' ' . $display . ' ';
}
if (preg_match('!^(:?[a-z][a-z0-9.+-]+:)!i', $link)) {
$url = $link;
} else {
$url = $this->baseUrl;
if (UTF8::substr($link, 0, 1) !== '/') {
$url .= '/';
}
$url .= $link;
}
if ($linkMethod === 'table') {
//
// table
//
if (($index = array_search($url, $this->linkList, true)) === false) {
$index = count($this->linkList);
$this->linkList[] = $url;
}
return ' ' . $display . ' [' . ($index + 1) . '] ';
} elseif ($linkMethod === 'nextline') {
//
// nextline
//
return ' ' . $display . "\n" . '[' . $url . '] ';
} elseif ($linkMethod === 'markdown') {
//
// markdown
//
return ' [' . $display . '](' . $url . ') ';
} elseif ($linkMethod === 'bbcode') {
//
// bbcode
//
return ' [url=' . $url . ']' . $display . '[/url] ';
} else {
//
// inline (default)
//
return ' ' . $display . ' [' . $url . '] ';
}
}
function render()
{
if (count($this->results) > 0) {
$max = max(array_map(function ($result) {
return $result['count'];
}, $this->results));
} else {
$max = 0;
}
// see http://bost.ocks.org/mike/bar/2/
return h()->div->class('ui fluid card')->div->class('content')->div->class('header')->c($this->label)->end->end->div->class('content')->svg->viewBox('0 0 700 ' . count($this->results) * 30)->style('background:#fff;width:100%;')->c(array_map(function ($result) use($max) {
$barWidth = $result['count'] / $max * 500;
$labelAtRight = $barWidth < 40;
$key = $result['_id'];
$color = RandomColor::one(['luminosity' => 'bright', 'prng' => function ($min, $max) use($key) {
# Get the color by hashing the text
# So it stays the same when the page is refreshed
return hexdec(UTF8::substr(md5($key), 0, 2)) / pow(16, 2) * ($max - $min) + $min;
}]);
if ($key === true) {
$key = 'Yes';
$color = '#21ba45';
} elseif ($key === false) {
$key = 'No';
$color = '#db2828';
} elseif ($key === null) {
$key = '(None)';
$color = '#777';
}
return h()->g->transform('translate(0, ' . $result['index'] * 30 . ')')->text->style('dominant-baseline:middle;text-anchor:end;')->x(140)->y(15)->c($key)->end->rect->width($barWidth)->y(5)->x(150)->height(20)->fill($color)->end->text->x(150 + $barWidth + ($labelAtRight ? 2 : -5))->y(15)->fill($labelAtRight ? 'black' : 'white')->style('dominant-baseline:middle;' . 'text-anchor:' . ($labelAtRight ? 'start;' : 'end;'))->c($result['count'])->end->end;
}, $this->results))->end->end->end;
}
function makeCSVPart($v)
{
if ($v === null) {
return null;
}
# Format the phone number with pretty unicode spaces
# before displaying it in a table
if (preg_match('/^[0-9]{10}$/', $v)) {
$showValue = '(' . UTF8::substr($v, 0, 3) . ') ' . UTF8::substr($v, 3, 3) . ' ' . UTF8::substr($v, 6, 4);
} else {
$showValue = $v;
}
return $showValue;
}
/**
* Helper function called by preg_replace() on link replacement.
*
* Maintains an internal list of links to be displayed at the end of the
* text, with numeric indices to the original point in the text they
* appeared. Also makes an effort at identifying and handling absolute
* and relative links.
*
* @param string $link URL of the link
* @param string $display Part of the text to associate number with
* @param string|null $linkOverride
*
* @return string
*/
protected function buildLinkList($link, $display, $linkOverride = null)
{
$linkMethod = $linkOverride ? $linkOverride : $this->options['do_links'];
if ($linkMethod == 'none') {
return $display;
}
// ignored link types
if (preg_match('!^(javascript:|mailto:|#)!i', $link)) {
return $display;
}
if (preg_match('!^([a-z][a-z0-9.+-]+:)!i', $link)) {
$url = $link;
} else {
$url = $this->baseurl;
if (UTF8::substr($link, 0, 1) != '/') {
$url .= '/';
}
$url .= $link;
}
if ($linkMethod == 'table') {
if (($index = array_search($url, $this->linkList, true)) === false) {
$index = count($this->linkList);
$this->linkList[] = $url;
}
return $display . ' [' . ($index + 1) . ']';
} elseif ($linkMethod == 'nextline') {
return $display . "\n[" . $url . ']';
} elseif ($linkMethod == 'bbcode') {
return '[url=' . $url . ']' . $display . '[/url]';
} else {
// link_method defaults to inline
return $display . ' [' . $url . ']';
}
}
/**
* Get random bytes
*
* @ref https://github.com/paragonie/random_compat/
*
* @param int $length Output length
*
* @return string|false false on error
*/
public static function get_random_bytes($length)
{
if (!$length || !ctype_digit((string) $length)) {
return false;
} else {
$length = (int) $length;
}
if (function_exists('random_bytes') && self::is_php('7.0')) {
/**
* PHP 7 -> http://php.net/manual/de/function.random-bytes.php
*/
try {
$return = random_bytes($length);
} catch (\Exception $e) {
$return = false;
}
return $return;
} else {
/**
* PHP 5.2.0 - 5.6.x way to implement random_bytes()
*
* // WARNING: Unfortunately, none of the following PRNGs is guaranteed to exist ...
*
* In order of preference:
* 1. PHP-Module: "mcrypt" via mcrypt_create_iv()
* 2. Linux / BSD: "/dev/urandom" via fread()
* 3. Windows: \COM('CAPICOM.Utilities.1')->GetRandom()
* 4. PHP+OpenSSL: openssl_random_pseudo_bytes()
*/
/**
* 1. PHP-Module
*/
if (extension_loaded('mcrypt') && defined(MCRYPT_DEV_URANDOM) === true) {
$output = mcrypt_create_iv($length, MCRYPT_DEV_URANDOM);
if ($output !== false && UTF8::strlen($output, '8bit') === $length) {
return $output;
}
}
/**
* 2. Linux / BSD
*/
if (!ini_get('open_basedir') && is_readable('/dev/urandom')) {
$fp = fopen('/dev/urandom', 'rb');
if (!empty($fp)) {
$st = fstat($fp);
// In C, this would be: (stat_mode & S_IFMT) !== S_IFCHR
if (($st['mode'] & 0170000) !== 020000) {
fclose($fp);
$fp = false;
}
unset($st);
}
}
if (isset($fp) && $fp !== false) {
/**
* stream_set_read_buffer() / stream_set_chunk_size does not exist in HHVM
*
* If we don't set the stream's read buffer to 0, PHP will
* internally buffer 8192 bytes, which can waste entropy
*
* stream_set_read_buffer returns 0 on success
*/
if (function_exists('stream_set_chunk_size')) {
stream_set_chunk_size($fp, $length);
}
if (function_exists('stream_set_read_buffer')) {
stream_set_read_buffer($fp, $length);
}
$remaining = $length;
$buf = '';
do {
$read = fread($fp, $remaining);
// We cannot safely read from the file, so exit the do-while loop.
if ($read === false) {
$buf = false;
break;
}
// Decrease the number of bytes returned from remaining.
$remaining -= UTF8::strlen($read, '8bit');
$buf .= $read;
} while ($remaining > 0);
fclose($fp);
if ($buf !== false) {
if (UTF8::strlen($buf, '8bit') === $length) {
return $buf;
}
}
}
/*
* 3. Windows
*
* PHP can be used to access COM objects on Windows platforms
*
* ---
*
* PROBLEM: you see this error-message:
* com_exception thrown with message
* "Failed to create COM object `CAPICOM.Utilities.1': Ungültige Syntax
*
* SOLUTION: register the dll:
* regsvr32 c:\windows\capicom.dll
*
* ---
*
* @ref http://php.net/manual/en/ref.com.php
*/
if (extension_loaded('com_dotnet') && class_exists('COM') === true) {
// init
$buf = '';
/** @noinspection PhpUndefinedClassInspection */
$util = new \COM('CAPICOM.Utilities.1');
/**
* Let's not let it loop forever. If we run N times and fail to
* get N bytes of random data, then CAPICOM has failed us.
*/
$execCount = 0;
do {
/** @noinspection PhpUndefinedMethodInspection */
$buf .= base64_decode($util->GetRandom($length, 0));
if (UTF8::strlen($buf, '8bit') >= $length) {
return UTF8::substr($buf, 0, $length);
}
++$execCount;
} while ($execCount < $length);
}
/**
* 4. PHP + OpenSSL
*
* fallback to "openssl_random_pseudo_bytes()"
*/
if (function_exists('openssl_random_pseudo_bytes')) {
$output = openssl_random_pseudo_bytes($length, $strong);
if ($output !== false && $strong === true) {
if (UTF8::strlen($output, '8bit') === $length) {
return $output;
}
}
}
return false;
}
}
/**
* @param string $word
*
* @return string
*/
private function capitalizeWord($word)
{
$encoding = $this->encoding;
$firstCharacter = UTF8::substr($word, 0, 1, $encoding);
$restOfWord = UTF8::substr($word, 1, null, $encoding);
$firstCharacterUppercased = UTF8::strtoupper($firstCharacter, $encoding);
return new static($firstCharacterUppercased . $restOfWord, $encoding);
}
/**
* Scan attributes from input & return them if found.
*
* @return Object|null
*/
protected function scanAttributes()
{
if ('(' === $this->input[0]) {
$index = $this->getDelimitersIndex('(', ')');
$input = UTF8::substr($this->input, 1, $index - 1);
$token = $this->takeToken('attributes', $input);
$attributes = preg_split('/ *, *(?=[\'"\\w-]+ *[:=]|[\\w-]+ *$)/', $token->value);
$this->consumeInput($index + 1);
$token->attributes = array();
foreach ($attributes as $i => $pair) {
$pair = preg_replace('/^ *| *$/', '', $pair);
$colon = UTF8::strpos($pair, ':');
$equal = UTF8::strpos($pair, '=');
$sbrac = UTF8::strpos($pair, '\'');
$dbrac = UTF8::strpos($pair, '"');
if ($sbrac < 1) {
$sbrac = false;
}
if ($dbrac < 1) {
$dbrac = false;
}
if (false !== $sbrac && $colon > $sbrac || false !== $dbrac && $colon > $dbrac) {
$colon = false;
}
if (false !== $sbrac && $equal > $sbrac || false !== $dbrac && $equal > $dbrac) {
$equal = false;
}
if (false === $colon && false === $equal) {
$key = $pair;
$value = true;
} else {
$splitter = false !== $colon ? $colon : $equal;
if (false !== $colon && $colon < $equal) {
$splitter = $colon;
}
$key = UTF8::substr($pair, 0, $splitter);
$value = preg_replace('/^ *[\'"]?|[\'"]? *$/', '', UTF8::substr($pair, ++$splitter, UTF8::strlen($pair)));
if ('true' === $value) {
$value = true;
} elseif (empty($value) || 'null' === $value || 'false' === $value) {
$value = false;
}
}
$token->attributes[preg_replace(array('/^ +| +$/', '/^[\'"]|[\'"]$/'), '', $key)] = $value;
}
return $token;
}
}
})->ifOk(function ($output) {
return json_encode(['data' => $output]);
});
});
# Generate a CSV file for a TableView
# See http://stackoverflow.com/questions/217424/create-a-csv-file-for-a-user-in-php
$klein->respond('GET', '/csv', function ($req, $res) use($parser, $stringifier) {
$res->header('X-Frame-Options', 'DENY');
$page = $parser->parseJade($_GET['form']);
$view = new CSVView($page->getView($_GET['view']));
header("Content-type: text/csv; charset=utf-8");
header("Content-Disposition: attachment; filename=formulaic-" . time() . ".csv");
ob_start();
$view->makeView($view->query(1))->render()->save('php://output');
$result = ob_get_clean();
return $result;
});
# Get the details of a particular table entry.
$klein->respond('GET', '/details', function ($req, $res) use($parser, $stringifier) {
$page = $parser->parseJade($_GET['form']);
$view = new DetailsView();
$view->setPage($page);
$stringifier->writeResponse(new PageWrapper($view->makeView($view->query($_GET))), $res);
});
# See https://github.com/chriso/klein.php/wiki/Sub-Directory-Installation
$config = Config::get();
$request = \Klein\Request::createFromGlobals();
$uri = $request->server()->get('REQUEST_URI');
$request->server()->set('REQUEST_URI', UTF8::substr($uri, UTF8::strlen($config['app-path'])));
# Route!
$klein->dispatch($request);
/**
* Chops down a string according to given max length, all characters beyond $maxLength is removed.
*
* This function is UTF8 compatible
*
* @param $str
* @param $maxLength
* @param bool $lengthUnitInByte
*
* @return string
*
*/
public static function stringChopdown($str, $maxLength, $lengthUnitInByte = false)
{
if ($lengthUnitInByte) {
return substr($str, 0, $maxLength);
}
$str = UTF8::to_utf8($str);
$len = UTF8::strlen($str);
if ($len <= $maxLength) {
return $str;
}
return UTF8::substr($str, 0, $maxLength);
}