SettingController.php
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<?php
namespace BookStack\Http\Controllers;
use Illuminate\Http\Request;
use BookStack\Http\Requests;
use BookStack\Http\Controllers\Controller;
use Setting;
class SettingController extends Controller
{
/**
* Display a listing of the settings.
*
* @return Response
*/
public function index()
{
$this->checkPermission('settings-update');
$this->setPageTitle('Settings');
return view('settings/index');
}
/**
* Update the specified settings in storage.
*
* @param Request $request
* @return Response
*/
public function update(Request $request)
{
$this->preventAccessForDemoUsers();
$this->checkPermission('settings-update');
// Cycles through posted settings and update them
foreach($request->all() as $name => $value) {
if(strpos($name, 'setting-') !== 0) continue;
$key = str_replace('setting-', '', trim($name));
if($key == 'app-color') {
Setting::put('app-color-rgba', $this->hex2rgba($value, 0.15));
}
Setting::put($key, $value);
}
session()->flash('success', 'Settings Saved');
return redirect('/settings');
}
/**
* Adapted from http://mekshq.com/how-to-convert-hexadecimal-color-code-to-rgb-or-rgba-using-php/
* Converts a hex color code in to an RGBA string.
*
* @param string $color
* @param float|boolean $opacity
* @return boolean|string
*/
protected function hex2rgba($color, $opacity = false)
{
// Return false if no color provided
if(empty($color)) {
return false;
}
// Trim any whitespace
$color = trim($color);
// Sanitize $color if "#" is provided
if($color[0] == '#' ) {
$color = substr($color, 1);
}
// Check if color has 6 or 3 characters and get values
if(strlen($color) == 6) {
$hex = array( $color[0] . $color[1], $color[2] . $color[3], $color[4] . $color[5] );
} elseif( strlen( $color ) == 3 ) {
$hex = array( $color[0] . $color[0], $color[1] . $color[1], $color[2] . $color[2] );
} else {
return false;
}
// Convert hexadec to rgb
$rgb = array_map('hexdec', $hex);
// Check if opacity is set(rgba or rgb)
if($opacity) {
if(abs($opacity) > 1)
$opacity = 1.0;
$output = 'rgba('.implode(",",$rgb).','.$opacity.')';
} else {
$output = 'rgb('.implode(",",$rgb).')';
}
// Return rgb(a) color string
return $output;
}
}