From eeac2329baab1fdae7cbf6c707ed2ffd8beb4c1b Mon Sep 17 00:00:00 2001
From: Frederic Guillot <fred@kanboard.net>
Date: Sun, 24 May 2015 16:02:25 -0400
Subject: Helpers refactoring

---
 app/Helper/App.php      |  56 +++++++++
 app/Helper/Asset.php    |  51 ++++++++
 app/Helper/Datetime.php |  61 +++++++++
 app/Helper/File.php     |  56 +++++++++
 app/Helper/Form.php     | 323 ++++++++++++++++++++++++++++++++++++++++++++++++
 app/Helper/Subtask.php  |  42 +++++++
 app/Helper/Task.php     |  59 +++++++++
 app/Helper/Text.php     |  91 ++++++++++++++
 app/Helper/Url.php      | 115 +++++++++++++++++
 app/Helper/User.php     |  93 ++++++++++++++
 10 files changed, 947 insertions(+)
 create mode 100644 app/Helper/App.php
 create mode 100644 app/Helper/Asset.php
 create mode 100644 app/Helper/Datetime.php
 create mode 100644 app/Helper/File.php
 create mode 100644 app/Helper/Form.php
 create mode 100644 app/Helper/Subtask.php
 create mode 100644 app/Helper/Task.php
 create mode 100644 app/Helper/Text.php
 create mode 100644 app/Helper/Url.php
 create mode 100644 app/Helper/User.php

(limited to 'app/Helper')

diff --git a/app/Helper/App.php b/app/Helper/App.php
new file mode 100644
index 00000000..8f591143
--- /dev/null
+++ b/app/Helper/App.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace Helper;
+
+/**
+ * Application helpers
+ *
+ * @package helper
+ * @author  Frederic Guillot
+ */
+class App extends \Core\Base
+{
+    /**
+     * Get javascript language code
+     *
+     * @access public
+     * @return string
+     */
+    public function jsLang()
+    {
+        return $this->config->getJsLanguageCode();
+    }
+
+    /**
+     * Get current timezone
+     *
+     * @access public
+     * @return string
+     */
+    public function getTimezone()
+    {
+        return $this->config->getCurrentTimezone();
+    }
+
+    /**
+     * Get session flash message
+     *
+     * @access public
+     * @return string
+     */
+    public function flashMessage()
+    {
+        $html = '';
+
+        if (isset($this->session['flash_message'])) {
+            $html = '<div class="alert alert-success alert-fade-out">'.$this->helper->e($this->session['flash_message']).'</div>';
+            unset($this->session['flash_message']);
+        }
+        else if (isset($this->session['flash_error_message'])) {
+            $html = '<div class="alert alert-error">'.$this->helper->e($this->session['flash_error_message']).'</div>';
+            unset($this->session['flash_error_message']);
+        }
+
+        return $html;
+    }
+}
diff --git a/app/Helper/Asset.php b/app/Helper/Asset.php
new file mode 100644
index 00000000..fe285081
--- /dev/null
+++ b/app/Helper/Asset.php
@@ -0,0 +1,51 @@
+<?php
+
+namespace Helper;
+
+/**
+ * Assets helpers
+ *
+ * @package helper
+ * @author  Frederic Guillot
+ */
+class Asset extends \Core\Base
+{
+    /**
+     * Add a Javascript asset
+     *
+     * @param  string   $filename   Filename
+     * @return string
+     */
+    public function js($filename)
+    {
+        return '<script type="text/javascript" src="'.$filename.'?'.filemtime($filename).'"></script>';
+    }
+
+    /**
+     * Add a stylesheet asset
+     *
+     * @param  string   $filename   Filename
+     * @param  boolean  $is_file    Add file timestamp
+     * @param  string   $media      Media
+     * @return string
+     */
+    public function css($filename, $is_file = true, $media = 'screen')
+    {
+        return '<link rel="stylesheet" href="'.$filename.($is_file ? '?'.filemtime($filename) : '').'" media="'.$media.'">';
+    }
+
+    /**
+     * Get custom css
+     *
+     * @access public
+     * @return string
+     */
+    public function customCss()
+    {
+        if ($this->config->get('application_stylesheet')) {
+            return '<style>'.$this->config->get('application_stylesheet').'</style>';
+        }
+
+        return '';
+    }
+}
diff --git a/app/Helper/Datetime.php b/app/Helper/Datetime.php
new file mode 100644
index 00000000..3a9c4c48
--- /dev/null
+++ b/app/Helper/Datetime.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace Helper;
+
+/**
+ * DateTime helpers
+ *
+ * @package helper
+ * @author  Frederic Guillot
+ */
+class Datetime extends \Core\Base
+{
+    /**
+     * Get all hours for day
+     *
+     * @access public
+     * @return array
+     */
+    public function getDayHours()
+    {
+        $values = array();
+
+        foreach (range(0, 23) as $hour) {
+            foreach (array(0, 30) as $minute) {
+                $time = sprintf('%02d:%02d', $hour, $minute);
+                $values[$time] = $time;
+            }
+        }
+
+        return $values;
+    }
+
+    /**
+     * Get all days of a week
+     *
+     * @access public
+     * @return array
+     */
+    public function getWeekDays()
+    {
+        $values = array();
+
+        foreach (range(1, 7) as $day) {
+            $values[$day] = $this->getWeekDay($day);
+        }
+
+        return $values;
+    }
+
+    /**
+     * Get the localized day name from the day number
+     *
+     * @access public
+     * @param  integer   $day  Day number
+     * @return string
+     */
+    public function getWeekDay($day)
+    {
+        return dt('%A', strtotime('next Monday +'.($day - 1).' days'));
+    }
+}
diff --git a/app/Helper/File.php b/app/Helper/File.php
new file mode 100644
index 00000000..a35e4283
--- /dev/null
+++ b/app/Helper/File.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace Helper;
+
+/**
+ * File helpers
+ *
+ * @package helper
+ * @author  Frederic Guillot
+ */
+class File extends \Core\Base
+{
+    /**
+     * Get file icon
+     *
+     * @access public
+     * @param  string   $filename   Filename
+     * @return string               Font-Awesome-Icon-Name
+     */
+    public function icon($filename){
+
+        $extension = strtolower(pathinfo($filename, PATHINFO_EXTENSION));
+
+        switch ($extension) {
+            case 'jpeg':
+            case 'jpg':
+            case 'png':
+            case 'gif':
+                return 'fa-file-image-o';
+            case 'xls':
+            case 'xlsx':
+                return 'fa-file-excel-o';
+            case 'doc':
+            case 'docx':
+                return 'fa-file-word-o';
+            case 'ppt':
+            case 'pptx':
+                return 'fa-file-powerpoint-o';
+            case 'zip':
+            case 'rar':
+                return 'fa-file-archive-o';
+            case 'mp3':
+                return 'fa-audio-o';
+            case 'avi':
+                return 'fa-video-o';
+            case 'php':
+            case 'html':
+            case 'css':
+                return 'fa-code-o';
+            case 'pdf':
+                return 'fa-file-pdf-o';
+        }
+
+        return 'fa-file-o';
+    }
+}
diff --git a/app/Helper/Form.php b/app/Helper/Form.php
new file mode 100644
index 00000000..83e3b113
--- /dev/null
+++ b/app/Helper/Form.php
@@ -0,0 +1,323 @@
+<?php
+
+namespace Helper;
+
+use Core\Security;
+
+/**
+ * Form helpers
+ *
+ * @package helper
+ * @author  Frederic Guillot
+ */
+class Form extends \Core\Base
+{
+    /**
+     * Hidden CSRF token field
+     *
+     * @access public
+     * @return string
+     */
+    public function csrf()
+    {
+        return '<input type="hidden" name="csrf_token" value="'.Security::getCSRFToken().'"/>';
+    }
+
+    /**
+     * Display a hidden form field
+     *
+     * @access public
+     * @param  string  $name    Field name
+     * @param  array   $values  Form values
+     * @return string
+     */
+    public function hidden($name, array $values = array())
+    {
+        return '<input type="hidden" name="'.$name.'" id="form-'.$name.'" '.$this->formValue($values, $name).'/>';
+    }
+
+    /**
+     * Display a select field
+     *
+     * @access public
+     * @param  string  $name     Field name
+     * @param  array   $options  Options
+     * @param  array   $values   Form values
+     * @param  array   $errors   Form errors
+     * @param  string  $class    CSS class
+     * @return string
+     */
+    public function select($name, array $options, array $values = array(), array $errors = array(), array $attributes = array(), $class = '')
+    {
+        $html = '<select name="'.$name.'" id="form-'.$name.'" class="'.$class.'" '.implode(' ', $attributes).'>';
+
+        foreach ($options as $id => $value) {
+
+            $html .= '<option value="'.$this->helper->e($id).'"';
+
+            if (isset($values->$name) && $id == $values->$name) $html .= ' selected="selected"';
+            if (isset($values[$name]) && $id == $values[$name]) $html .= ' selected="selected"';
+
+            $html .= '>'.$this->helper->e($value).'</option>';
+        }
+
+        $html .= '</select>';
+        $html .= $this->errorList($errors, $name);
+
+        return $html;
+    }
+
+    /**
+     * Display a radio field group
+     *
+     * @access public
+     * @param  string  $name     Field name
+     * @param  array   $options  Options
+     * @param  array   $values   Form values
+     * @return string
+     */
+    public function radios($name, array $options, array $values = array())
+    {
+        $html = '';
+
+        foreach ($options as $value => $label) {
+            $html .= $this->radio($name, $label, $value, isset($values[$name]) && $values[$name] == $value);
+        }
+
+        return $html;
+    }
+
+    /**
+     * Display a radio field
+     *
+     * @access public
+     * @param  string  $name      Field name
+     * @param  string  $label     Form label
+     * @param  string  $value     Form value
+     * @param  boolean $selected  Field selected or not
+     * @param  string  $class     CSS class
+     * @return string
+     */
+    public function radio($name, $label, $value, $selected = false, $class = '')
+    {
+        return '<label><input type="radio" name="'.$name.'" class="'.$class.'" value="'.$this->helper->e($value).'" '.($selected ? 'checked="checked"' : '').'> '.$this->helper->e($label).'</label>';
+    }
+
+    /**
+     * Display a checkbox field
+     *
+     * @access public
+     * @param  string  $name      Field name
+     * @param  string  $label     Form label
+     * @param  string  $value     Form value
+     * @param  boolean $checked   Field selected or not
+     * @param  string  $class     CSS class
+     * @return string
+     */
+    public function checkbox($name, $label, $value, $checked = false, $class = '')
+    {
+        return '<label><input type="checkbox" name="'.$name.'" class="'.$class.'" value="'.$this->helper->e($value).'" '.($checked ? 'checked="checked"' : '').'>&nbsp;'.$this->helper->e($label).'</label>';
+    }
+
+    /**
+     * Display a form label
+     *
+     * @access public
+     * @param  string  $name        Field name
+     * @param  string  $label       Form label
+     * @param  array   $attributes  HTML attributes
+     * @return string
+     */
+    public function label($label, $name, array $attributes = array())
+    {
+        return '<label for="form-'.$name.'" '.implode(' ', $attributes).'>'.$this->helper->e($label).'</label>';
+    }
+
+    /**
+     * Display a textarea
+     *
+     * @access public
+     * @param  string  $name        Field name
+     * @param  array   $values      Form values
+     * @param  array   $errors      Form errors
+     * @param  array   $attributes  HTML attributes
+     * @param  string  $class       CSS class
+     * @return string
+     */
+    public function textarea($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
+    {
+        $class .= $this->errorClass($errors, $name);
+
+        $html = '<textarea name="'.$name.'" id="form-'.$name.'" class="'.$class.'" ';
+        $html .= implode(' ', $attributes).'>';
+        $html .= isset($values->$name) ? $this->helper->e($values->$name) : isset($values[$name]) ? $values[$name] : '';
+        $html .= '</textarea>';
+        $html .= $this->errorList($errors, $name);
+
+        return $html;
+    }
+
+    /**
+     * Display a input field
+     *
+     * @access public
+     * @param  string  $type        HMTL input tag type
+     * @param  string  $name        Field name
+     * @param  array   $values      Form values
+     * @param  array   $errors      Form errors
+     * @param  array   $attributes  HTML attributes
+     * @param  string  $class       CSS class
+     * @return string
+     */
+    public function input($type, $name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
+    {
+        $class .= $this->errorClass($errors, $name);
+
+        $html = '<input type="'.$type.'" name="'.$name.'" id="form-'.$name.'" '.$this->formValue($values, $name).' class="'.$class.'" ';
+        $html .= implode(' ', $attributes).'>';
+
+        if (in_array('required', $attributes)) {
+            $html .= '<span class="form-required">*</span>';
+        }
+
+        $html .= $this->errorList($errors, $name);
+
+        return $html;
+    }
+
+    /**
+     * Display a text field
+     *
+     * @access public
+     * @param  string  $name        Field name
+     * @param  array   $values      Form values
+     * @param  array   $errors      Form errors
+     * @param  array   $attributes  HTML attributes
+     * @param  string  $class       CSS class
+     * @return string
+     */
+    public function text($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
+    {
+        return $this->input('text', $name, $values, $errors, $attributes, $class);
+    }
+
+    /**
+     * Display a password field
+     *
+     * @access public
+     * @param  string  $name        Field name
+     * @param  array   $values      Form values
+     * @param  array   $errors      Form errors
+     * @param  array   $attributes  HTML attributes
+     * @param  string  $class       CSS class
+     * @return string
+     */
+    public function password($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
+    {
+        return $this->input('password', $name, $values, $errors, $attributes, $class);
+    }
+
+    /**
+     * Display an email field
+     *
+     * @access public
+     * @param  string  $name        Field name
+     * @param  array   $values      Form values
+     * @param  array   $errors      Form errors
+     * @param  array   $attributes  HTML attributes
+     * @param  string  $class       CSS class
+     * @return string
+     */
+    public function email($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
+    {
+        return $this->input('email', $name, $values, $errors, $attributes, $class);
+    }
+
+    /**
+     * Display a number field
+     *
+     * @access public
+     * @param  string  $name        Field name
+     * @param  array   $values      Form values
+     * @param  array   $errors      Form errors
+     * @param  array   $attributes  HTML attributes
+     * @param  string  $class       CSS class
+     * @return string
+     */
+    public function number($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
+    {
+        return $this->input('number', $name, $values, $errors, $attributes, $class);
+    }
+
+    /**
+     * Display a numeric field (allow decimal number)
+     *
+     * @access public
+     * @param  string  $name        Field name
+     * @param  array   $values      Form values
+     * @param  array   $errors      Form errors
+     * @param  array   $attributes  HTML attributes
+     * @param  string  $class       CSS class
+     * @return string
+     */
+    public function numeric($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
+    {
+        return $this->input('text', $name, $values, $errors, $attributes, $class.' form-numeric');
+    }
+
+    /**
+     * Display the form error class
+     *
+     * @access private
+     * @param array   $errors   Error list
+     * @param string  $name     Field name
+     * @return string
+     */
+    private function errorClass(array $errors, $name)
+    {
+        return ! isset($errors[$name]) ? '' : ' form-error';
+    }
+
+    /**
+     * Display a list of form errors
+     *
+     * @access private
+     * @param array   $errors   List of errors
+     * @param string  $name     Field name
+     * @return string
+     */
+    private function errorList(array $errors, $name)
+    {
+        $html = '';
+
+        if (isset($errors[$name])) {
+
+            $html .= '<ul class="form-errors">';
+
+            foreach ($errors[$name] as $error) {
+                $html .= '<li>'.$this->helper->e($error).'</li>';
+            }
+
+            $html .= '</ul>';
+        }
+
+        return $html;
+    }
+
+    /**
+     * Get an escaped form value
+     *
+     * @access private
+     * @param  mixed  $values  Values
+     * @param  string $name    Field name
+     * @return string
+     */
+    private function formValue($values, $name)
+    {
+        if (isset($values->$name)) {
+            return 'value="'.$this->helper->e($values->$name).'"';
+        }
+
+        return isset($values[$name]) ? 'value="'.$this->helper->e($values[$name]).'"' : '';
+    }
+}
diff --git a/app/Helper/Subtask.php b/app/Helper/Subtask.php
new file mode 100644
index 00000000..6348ebd1
--- /dev/null
+++ b/app/Helper/Subtask.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Helper;
+
+/**
+ * Subtask helpers
+ *
+ * @package helper
+ * @author  Frederic Guillot
+ */
+class Subtask extends \Core\Base
+{
+    /**
+     * Get the link to toggle subtask status
+     *
+     * @access public
+     * @param  array   $subtask
+     * @param  string  $redirect
+     * @return string
+     */
+    public function toggleStatus(array $subtask, $redirect)
+    {
+        if ($subtask['status'] == 0 && isset($this->session['has_subtask_inprogress']) && $this->session['has_subtask_inprogress'] === true) {
+
+            return $this->helper->url->link(
+                trim($this->template->render('subtask/icons', array('subtask' => $subtask))) . $this->helper->e($subtask['title']),
+                'subtask',
+                'subtaskRestriction',
+                array('task_id' => $subtask['task_id'], 'subtask_id' => $subtask['id'], 'redirect' => $redirect),
+                false,
+                'popover task-board-popover'
+            );
+        }
+
+        return $this->helper->url->link(
+            trim($this->template->render('subtask/icons', array('subtask' => $subtask))) . $this->helper->e($subtask['title']),
+            'subtask',
+            'toggleStatus',
+            array('task_id' => $subtask['task_id'], 'subtask_id' => $subtask['id'], 'redirect' => $redirect)
+        );
+    }
+}
diff --git a/app/Helper/Task.php b/app/Helper/Task.php
new file mode 100644
index 00000000..b3931cdb
--- /dev/null
+++ b/app/Helper/Task.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace Helper;
+
+/**
+ * Task helpers
+ *
+ * @package helper
+ * @author  Frederic Guillot
+ */
+class Task extends \Core\Base
+{
+    /**
+     * Get the age of an item in quasi human readable format.
+     * It's in this format: <1h , NNh, NNd
+     *
+     * @access public
+     * @param  integer    $timestamp    Unix timestamp of the artifact for which age will be calculated
+     * @param  integer    $now          Compare with this timestamp (Default value is the current unix timestamp)
+     * @return string
+     */
+    public function age($timestamp, $now = null)
+    {
+        if ($now === null) {
+            $now = time();
+        }
+
+        $diff = $now - $timestamp;
+
+        if ($diff < 3600) {
+            return t('<1h');
+        }
+        else if ($diff < 86400) {
+            return t('%dh', $diff / 3600);
+        }
+
+        return t('%dd', ($now - $timestamp) / 86400);
+    }
+
+    public function recurrenceTriggers()
+    {
+        return $this->task->getRecurrenceTriggerList();
+    }
+
+    public function recurrenceTimeframes()
+    {
+        return $this->task->getRecurrenceTimeframeList();
+    }
+
+    public function recurrenceBasedates()
+    {
+        return $this->task->getRecurrenceBasedateList();
+    }
+
+    public function canRemove(array $task)
+    {
+        return $this->taskPermission->canRemoveTask($task);
+    }
+}
diff --git a/app/Helper/Text.php b/app/Helper/Text.php
new file mode 100644
index 00000000..cfb557b1
--- /dev/null
+++ b/app/Helper/Text.php
@@ -0,0 +1,91 @@
+<?php
+
+namespace Helper;
+
+use Core\Markdown;
+
+/**
+ * Text helpers
+ *
+ * @package helper
+ * @author  Frederic Guillot
+ */
+class Text extends \Core\Base
+{
+    /**
+     * Markdown transformation
+     *
+     * @param  string    $text     Markdown content
+     * @param  array     $link     Link parameters for replacement
+     * @return string
+     */
+    public function markdown($text, array $link = array())
+    {
+        $parser = new Markdown($link, $this->helper->url);
+        $parser->setMarkupEscaped(MARKDOWN_ESCAPE_HTML);
+        return $parser->text($text);
+    }
+
+    /**
+     * Format a file size
+     *
+     * @param  integer  $size        Size in bytes
+     * @param  integer  $precision   Precision
+     * @return string
+     */
+    public function bytes($size, $precision = 2)
+    {
+        $base = log($size) / log(1024);
+        $suffixes = array('', 'k', 'M', 'G', 'T');
+
+        return round(pow(1024, $base - floor($base)), $precision).$suffixes[(int)floor($base)];
+    }
+
+    /**
+     * Truncate a long text
+     *
+     * @param  string    $value         Text
+     * @param  integer   $max_length    Max Length
+     * @param  string    $end           Text end
+     * @return string
+     */
+    public function truncate($value, $max_length = 85, $end = '[...]')
+    {
+        $length = strlen($value);
+
+        if ($length > $max_length) {
+            return substr($value, 0, $max_length).' '.$end;
+        }
+
+        return $value;
+    }
+
+    /**
+     * Return true if needle is contained in the haystack
+     *
+     * @param  string   $haystack   Haystack
+     * @param  string   $needle     Needle
+     * @return boolean
+     */
+    public function contains($haystack, $needle)
+    {
+        return strpos($haystack, $needle) !== false;
+    }
+
+    /**
+     * Return a value from a dictionary
+     *
+     * @param  mixed   $id              Key
+     * @param  array   $listing         Dictionary
+     * @param  string  $default_value   Value displayed when the key doesn't exists
+     * @return string
+     */
+    public function in($id, array $listing, $default_value = '?')
+    {
+        if (isset($listing[$id])) {
+            return $this->helper->e($listing[$id]);
+        }
+
+        return $default_value;
+    }
+}
diff --git a/app/Helper/Url.php b/app/Helper/Url.php
new file mode 100644
index 00000000..9bb38e59
--- /dev/null
+++ b/app/Helper/Url.php
@@ -0,0 +1,115 @@
+<?php
+
+namespace Helper;
+
+use Core\Request;
+use Core\Security;
+
+/**
+ * Url helpers
+ *
+ * @package helper
+ * @author  Frederic Guillot
+ */
+class Url extends \Core\Base
+{
+    /**
+     * HTML Link tag
+     *
+     * @access public
+     * @param  string   $label       Link label
+     * @param  string   $controller  Controller name
+     * @param  string   $action      Action name
+     * @param  array    $params      Url parameters
+     * @param  boolean  $csrf        Add a CSRF token
+     * @param  string   $class       CSS class attribute
+     * @param  boolean  $new_tab     Open the link in a new tab
+     * @return string
+     */
+    public function link($label, $controller, $action, array $params = array(), $csrf = false, $class = '', $title = '', $new_tab = false)
+    {
+        return '<a href="'.$this->href($controller, $action, $params, $csrf).'" class="'.$class.'" title="'.$title.'" '.($new_tab ? 'target="_blank"' : '').'>'.$label.'</a>';
+    }
+
+    /**
+     * Hyperlink
+     *
+     * @access public
+     * @param  string   $controller  Controller name
+     * @param  string   $action      Action name
+     * @param  array    $params      Url parameters
+     * @param  boolean  $csrf        Add a CSRF token
+     * @return string
+     */
+    public function href($controller, $action, array $params = array(), $csrf = false)
+    {
+        $values = array(
+            'controller' => $controller,
+            'action' => $action,
+        );
+
+        if ($csrf) {
+            $params['csrf_token'] = Security::getCSRFToken();
+        }
+
+        $values += $params;
+
+        return '?'.http_build_query($values, '', '&amp;');
+    }
+
+    /**
+     * Generate controller/action url
+     *
+     * @access public
+     * @param  string   $controller  Controller name
+     * @param  string   $action      Action name
+     * @param  array    $params      Url parameters
+     * @return string
+     */
+    public function to($controller, $action, array $params = array())
+    {
+        $values = array(
+            'controller' => $controller,
+            'action' => $action,
+        );
+
+        $values += $params;
+
+        return '?'.http_build_query($values, '', '&');
+    }
+
+    /**
+     * Get application base url
+     *
+     * @access public
+     * @return string
+     */
+    public function base()
+    {
+        $application_url = $this->config->get('application_url');
+
+        if (! empty($application_url)) {
+            return $application_url;
+        }
+
+        return $this->server();
+    }
+
+    /**
+     * Get current server base url
+     *
+     * @access public
+     * @return string
+     */
+    public function server()
+    {
+        $self = str_replace('\\', '/', dirname($_SERVER['PHP_SELF']));
+
+        $url = Request::isHTTPS() ? 'https://' : 'http://';
+        $url .= $_SERVER['SERVER_NAME'];
+        $url .= $_SERVER['SERVER_PORT'] == 80 || $_SERVER['SERVER_PORT'] == 443 ? '' : ':'.$_SERVER['SERVER_PORT'];
+        $url .= $self !== '/' ? $self.'/' : '/';
+
+        return $url;
+    }
+}
diff --git a/app/Helper/User.php b/app/Helper/User.php
new file mode 100644
index 00000000..00018857
--- /dev/null
+++ b/app/Helper/User.php
@@ -0,0 +1,93 @@
+<?php
+
+namespace Helper;
+
+/**
+ * User helpers
+ *
+ * @package helper
+ * @author  Frederic Guillot
+ */
+class User extends \Core\Base
+{
+    /**
+     * Get user profile
+     *
+     * @access public
+     * @return string
+     */
+    public function getProfileLink()
+    {
+        return $this->helper->url->link(
+            $this->helper->e($this->getFullname()),
+            'user',
+            'show',
+            array('user_id' => $this->userSession->getId())
+        );
+    }
+    /**
+     * Check if the given user_id is the connected user
+     *
+     * @param  integer   $user_id   User id
+     * @return boolean
+     */
+    public function isCurrentUser($user_id)
+    {
+        return $this->userSession->getId() == $user_id;
+    }
+
+    /**
+     * Return if the logged user is admin
+     *
+     * @access public
+     * @return boolean
+     */
+    public function isAdmin()
+    {
+        return $this->userSession->isAdmin();
+    }
+
+    /**
+     * Proxy cache helper for acl::isManagerActionAllowed()
+     *
+     * @access public
+     * @param  integer   $project_id
+     * @return boolean
+     */
+    public function isManager($project_id)
+    {
+        if ($this->userSession->isAdmin()) {
+            return true;
+        }
+
+        return $this->memoryCache->proxy('acl', 'isManagerActionAllowed', $project_id);
+    }
+
+    /**
+     * Return the user full name
+     *
+     * @param  array    $user   User properties
+     * @return string
+     */
+    public function getFullname(array $user = array())
+    {
+        return $this->user->getFullname(empty($user) ? $_SESSION['user'] : $user);
+    }
+
+    /**
+     * Display gravatar image
+     *
+     * @access public
+     * @param  string  $email
+     * @param  string  $alt
+     * @return string
+     */
+    public function avatar($email, $alt = '')
+    {
+        if (! empty($email) && $this->config->get('integration_gravatar') == 1) {
+            return '<img class="avatar" src="https://www.gravatar.com/avatar/'.md5(strtolower($email)).'?s=25" alt="'.$this->helper->e($alt).'" title="'.$this->helper->e($alt).'">';
+        }
+
+        return '';
+    }
+}
-- 
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