diff options
Diffstat (limited to 'core/helper.php')
| -rw-r--r-- | core/helper.php | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/core/helper.php b/core/helper.php new file mode 100644 index 00000000..e4ad26f1 --- /dev/null +++ b/core/helper.php @@ -0,0 +1,242 @@ +<?php + +namespace Helper; + +function is_current_user($user_id) +{ + return $_SESSION['user']['id'] == $user_id; +} + +function is_admin() +{ + return $_SESSION['user']['is_admin'] == 1; +} + +function markdown($text) +{ + require_once __DIR__.'/../vendor/Michelf/MarkdownExtra.inc.php'; + + $parser = new \Michelf\MarkdownExtra; + $parser->no_markup = true; + $parser->no_entities = true; + + return $parser->transform($text); +} + +function get_current_base_url() +{ + $url = isset($_SERVER['HTTPS']) ? 'https://' : 'http://'; + $url .= $_SERVER['SERVER_NAME']; + $url .= $_SERVER['SERVER_PORT'] == 80 || $_SERVER['SERVER_PORT'] == 443 ? '' : ':'.$_SERVER['SERVER_PORT']; + $url .= dirname($_SERVER['PHP_SELF']) !== '/' ? dirname($_SERVER['PHP_SELF']).'/' : '/'; + + return $url; +} + +function escape($value) +{ + return htmlspecialchars($value, ENT_QUOTES, 'UTF-8', false); +} + +function flash($html) +{ + $data = ''; + + if (isset($_SESSION['flash_message'])) { + $data = sprintf($html, escape($_SESSION['flash_message'])); + unset($_SESSION['flash_message']); + } + + return $data; +} + +function flash_error($html) +{ + $data = ''; + + if (isset($_SESSION['flash_error_message'])) { + $data = sprintf($html, escape($_SESSION['flash_error_message'])); + unset($_SESSION['flash_error_message']); + } + + return $data; +} + +function format_bytes($size, $precision = 2) +{ + $base = log($size) / log(1024); + $suffixes = array('', 'k', 'M', 'G', 'T'); + + return round(pow(1024, $base - floor($base)), $precision).$suffixes[floor($base)]; +} + +function get_host_from_url($url) +{ + return escape(parse_url($url, PHP_URL_HOST)) ?: $url; +} + +function summary($value, $min_length = 5, $max_length = 120, $end = '[...]') +{ + $length = strlen($value); + + if ($length > $max_length) { + return substr($value, 0, strpos($value, ' ', $max_length)).' '.$end; + } + else if ($length < $min_length) { + return ''; + } + + return $value; +} + +function contains($haystack, $needle) +{ + return strpos($haystack, $needle) !== false; +} + +function in_list($id, array $listing) +{ + if (isset($listing[$id])) { + return escape($listing[$id]); + } + + return '?'; +} + +function error_class(array $errors, $name) +{ + return ! isset($errors[$name]) ? '' : ' form-error'; +} + +function error_list(array $errors, $name) +{ + $html = ''; + + if (isset($errors[$name])) { + + $html .= '<ul class="form-errors">'; + + foreach ($errors[$name] as $error) { + $html .= '<li>'.escape($error).'</li>'; + } + + $html .= '</ul>'; + } + + return $html; +} + +function form_value($values, $name) +{ + if (isset($values->$name)) { + return 'value="'.escape($values->$name).'"'; + } + + return isset($values[$name]) ? 'value="'.escape($values[$name]).'"' : ''; +} + +function form_hidden($name, $values = array()) +{ + return '<input type="hidden" name="'.$name.'" id="form-'.$name.'" '.form_value($values, $name).'/>'; +} + +function form_default_select($name, array $options, $values = array(), array $errors = array(), $class = '') +{ + $options = array('' => '?') + $options; + return form_select($name, $options, $values, $errors, $class); +} + +function form_select($name, array $options, $values = array(), array $errors = array(), $class = '') +{ + $html = '<select name="'.$name.'" id="form-'.$name.'" class="'.$class.'">'; + + foreach ($options as $id => $value) { + + $html .= '<option value="'.escape($id).'"'; + + if (isset($values->$name) && $id == $values->$name) $html .= ' selected="selected"'; + if (isset($values[$name]) && $id == $values[$name]) $html .= ' selected="selected"'; + + $html .= '>'.escape($value).'</option>'; + } + + $html .= '</select>'; + $html .= error_list($errors, $name); + + return $html; +} + +function form_radios($name, array $options, array $values = array()) +{ + $html = ''; + + foreach ($options as $value => $label) { + $html .= form_radio($name, $label, $value, isset($values[$name]) && $values[$name] == $value); + } + + return $html; +} + +function form_radio($name, $label, $value, $selected = false, $class = '') +{ + return '<label><input type="radio" name="'.$name.'" class="'.$class.'" value="'.escape($value).'" '.($selected ? 'selected="selected"' : '').'>'.escape($label).'</label>'; +} + +function form_checkbox($name, $label, $value, $checked = false, $class = '') +{ + return '<label><input type="checkbox" name="'.$name.'" class="'.$class.'" value="'.escape($value).'" '.($checked ? 'checked="checked"' : '').'> '.escape($label).'</label>'; +} + +function form_label($label, $name, $class = '') +{ + return '<label for="form-'.$name.'" class="'.$class.'">'.escape($label).'</label>'; +} + +function form_textarea($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '') +{ + $class .= error_class($errors, $name); + + $html = '<textarea name="'.$name.'" id="form-'.$name.'" class="'.$class.'" '; + $html .= implode(' ', $attributes).'>'; + $html .= isset($values->$name) ? escape($values->$name) : isset($values[$name]) ? $values[$name] : ''; + $html .= '</textarea>'; + $html .= error_list($errors, $name); + + return $html; +} + +function form_input($type, $name, $values = array(), array $errors = array(), array $attributes = array(), $class = '') +{ + $class .= error_class($errors, $name); + + $html = '<input type="'.$type.'" name="'.$name.'" id="form-'.$name.'" '.form_value($values, $name).' class="'.$class.'" '; + $html .= implode(' ', $attributes).'/>'; + $html .= error_list($errors, $name); + + return $html; +} + +function form_text($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '') +{ + return form_input('text', $name, $values, $errors, $attributes, $class); +} + +function form_password($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '') +{ + return form_input('password', $name, $values, $errors, $attributes, $class); +} + +function form_email($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '') +{ + return form_input('email', $name, $values, $errors, $attributes, $class); +} + +function form_date($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '') +{ + return form_input('date', $name, $values, $errors, $attributes, $class); +} + +function form_number($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '') +{ + return form_input('number', $name, $values, $errors, $attributes, $class); +} |