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<?php |
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/** |
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* Whoops - php errors for cool kids |
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* @author Filipe Dobreira <http://github.com/filp> |
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*/ |
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namespace Whoops\Util; |
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use Symfony\Component\VarDumper\Cloner\VarCloner; |
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use Symfony\Component\VarDumper\Dumper\CliDumper; |
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use Symfony\Component\VarDumper\Dumper\HtmlDumper; |
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/** |
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* Exposes useful tools for working with/in templates |
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*/ |
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class TemplateHelper |
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{ |
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/** |
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* An array of variables to be passed to all templates |
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* @var array |
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*/ |
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private $variables = array(); |
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/** |
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* Escapes a string for output in an HTML document |
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2 |
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* |
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* @param string $raw |
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* @return string |
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*/ |
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public function escape($raw) |
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{ |
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$flags = ENT_QUOTES; |
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2 |
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// HHVM has all constants defined, but only ENT_IGNORE |
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// works at the moment |
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if (defined("ENT_SUBSTITUTE") && !defined("HHVM_VERSION")) { |
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$flags |= ENT_SUBSTITUTE; |
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} else { |
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// This is for 5.3. |
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// The documentation warns of a potential security issue, |
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// but it seems it does not apply in our case, because |
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// we do not blacklist anything anywhere. |
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$flags |= ENT_IGNORE; |
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} |
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return htmlspecialchars($raw, $flags, "UTF-8"); |
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} |
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/** |
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* Escapes a string for output in an HTML document, but preserves |
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* URIs within it, and converts them to clickable anchor elements. |
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* |
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* @param string $raw |
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* @return string |
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*/ |
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public function escapeButPreserveUris($raw) |
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{ |
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$escaped = $this->escape($raw); |
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return preg_replace( |
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"@([A-z]+?://([-\w\.]+[-\w])+(:\d+)?(/([\w/_\.#-]*(\?\S+)?[^\.\s])?)?)@", |
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"<a href=\"$1\" target=\"_blank\">$1</a>", $escaped |
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); |
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} |
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/** |
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* Format the given value into a human readable string. |
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* |
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* @param mixed $value |
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* @return string |
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*/ |
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public function dump($value) |
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{ |
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if (class_exists('Symfony\Component\VarDumper\Cloner\VarCloner')) { |
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static $dumper = null; |
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// re-use the same var-dumper instance, so it won't re-render the global styles/scripts on each dump. |
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if (!$dumper) { |
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$dumper = new HtmlDumper(); |
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$styles = array( |
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'default' => '', |
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'num' => '', |
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'const' => '', |
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'str' => '', |
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'note' => '', |
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'ref' => '', |
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'public' => '', |
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'protected' => '', |
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'private' => '', |
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'meta' => '', |
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'key' => '', |
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'index' => '', |
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); |
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$dumper->setStyles($styles); |
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} |
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$cloner = new VarCloner(); |
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return $dumper->dump($cloner->cloneVar($value)); |
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} |
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return print_r($value, true); |
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} |
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/** |
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* Convert a string to a slug version of itself |
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* |
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* @param string $original |
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* @return string |
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*/ |
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public function slug($original) |
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{ |
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$slug = str_replace(" ", "-", $original); |
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$slug = preg_replace('/[^\w\d\-\_]/i', '', $slug); |
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return strtolower($slug); |
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} |
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/** |
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* Given a template path, render it within its own scope. This |
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* method also accepts an array of additional variables to be |
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* passed to the template. |
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* |
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* @param string $template |
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* @param array $additionalVariables |
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*/ |
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public function render($template, array $additionalVariables = null) |
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{ |
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$variables = $this->getVariables(); |
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// Pass the helper to the template: |
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$variables["tpl"] = $this; |
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if ($additionalVariables !== null) { |
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$variables = array_replace($variables, $additionalVariables); |
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} |
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call_user_func(function () { |
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extract(func_get_arg(1)); |
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require func_get_arg(0); |
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}, $template, $variables); |
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} |
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/** |
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* Sets the variables to be passed to all templates rendered |
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* by this template helper. |
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* |
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* @param array $variables |
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*/ |
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public function setVariables(array $variables) |
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{ |
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$this->variables = $variables; |
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} |
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/** |
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* Sets a single template variable, by its name: |
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* |
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* @param string $variableName |
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* @param mixd $variableValue |
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*/ |
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public function setVariable($variableName, $variableValue) |
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{ |
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$this->variables[$variableName] = $variableValue; |
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} |
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/** |
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* Gets a single template variable, by its name, or |
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* $defaultValue if the variable does not exist |
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* |
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* @param string $variableName |
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* @param mixed $defaultValue |
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* @return mixed |
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*/ |
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public function getVariable($variableName, $defaultValue = null) |
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{ |
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return isset($this->variables[$variableName]) ? |
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$this->variables[$variableName] : $defaultValue; |
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} |
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/** |
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* Unsets a single template variable, by its name |
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* |
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* @param string $variableName |
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*/ |
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public function delVariable($variableName) |
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{ |
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unset($this->variables[$variableName]); |
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} |
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/** |
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* Returns all variables for this helper |
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* |
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* @return array |
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*/ |
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public function getVariables() |
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{ |
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return $this->variables; |
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} |
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} |
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filp /
whoops
