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<?php
namespace App\Http\Controllers;
use Laravel\Lumen\Routing\Controller as BaseController;
use Illuminate\Http\Request;
use DB;
class Controller extends BaseController
{
private static function displayURL() {
return preg_replace('/(^https?:\/\/|\/$)/', '', session('me'));
}
public function index(Request $request) {
if(session('user_id')) {
$databases = DB::select('SELECT d.*
FROM `databases` d
JOIN database_users u ON d.id = u.database_id
WHERE u.user_id = ?
ORDER BY name', [session('user_id')]);
return view('dashboard', [
'displayURL' => self::displayURL(),
'databases' => $databases
]);
} else {
return view('index');
}
}
public function createDatabase(Request $request) {
if(!session('user_id'))
return redirect('/');
if($request->input('name') == '') {
$request->session()->flash('create-error', 'Enter a name.');
return redirect('/');
}
// Only alphanumeric chars are allowed
if(preg_replace('/[^a-zA-Z0-9]/', '', $request->input('name')) != $request->input('name')) {
$request->session()->flash('create-error', 'Only alphanumeric characters are allowed.');
$request->session()->flash('database-name', preg_replace('/[^a-zA-Z0-9]/','',$request->input('name')));
return redirect('/');
}
// Check for conflicts
$db = DB::select('SELECT * FROM `databases` WHERE name = ?', [$request->input('name')]);
if(count($db) == 0) {
// Create the database records
$id = DB::table('databases')->insertGetId([
'name' => $request->input('name'),
'read_token' => str_random(40),
'write_token' => str_random(40),
'created_by' => session('user_id'),
'created_at' => date('Y-m-d H:i:s')
]);
DB::table('database_users')->insert([
'database_id' => $id,
'user_id' => session('user_id'),
'created_at' => date('Y-m-d H:i:s')
]);
return redirect('/');
} else {
$request->session()->flash('create-error', 'That database name is already in use.');
$request->session()->flash('database-name', $request->input('name'));
return redirect('/');
}
}
public function map(Request $request, $name) {
if(!session('user_id'))
return redirect('/');
// Verify this user has access to the database
$db = DB::table('databases')
->join('database_users', function($join){
$join->on('databases.id','=','database_users.database_id');
})
->where('user_id','=',session('user_id'))
->where('name','=',$name)
->first();
if(!$db)
return redirect('/');
return view('map', [
'displayURL' => self::displayURL(),
'database' => $db,
'menu' => [
'/settings/'.$name => 'Settings'
],
'range_from' => $request->input('from') ?: '',
'range_to' => $request->input('to') ?: '',
'range_tz' => $request->input('tz') ?: $db->timezone
]);
}
public function settings(Request $request, $name) {
if(!session('user_id'))
return redirect('/');
// Only the person that created the database can modify it
$db = DB::table('databases')
->where('created_by','=',session('user_id'))
->where('name','=',$name)
->first();
if(!$db)
return redirect('/');
$users = DB::select('SELECT u.*
FROM users u
JOIN database_users d ON u.id = d.user_id
WHERE d.database_id = ?
ORDER BY u.url', [$db->id]);
return view('settings', [
'displayURL' => self::displayURL(),
'database' => $db,
'users' => $users,
'menu' => [
'/map/'.$name => 'Map'
]
]);
}
public function updateSettings(Request $request, $name) {
if(!session('user_id'))
return redirect('/');
// Only the person that created the database can modify it
$db = DB::table('databases')
->where('created_by','=',session('user_id'))
->where('name','=',$name)
->first();
if(!$db)
return redirect('/');
if($request->input('remove_user')) {
$user = DB::table('users')->where('url','=',$request->input('remove_user'))->first();
if($user) {
DB::table('database_users')->where('database_id','=',$db->id)->where('user_id','=',$user->id)->delete();
}
return response(json_encode([
'result' => 'ok'
]))->header('Content-Type', 'application/json');
} else if($request->input('add_user')) {
// Find user if it exists already
$user = DB::table('users')->where('url','=',$request->input('add_user'))->first();
if($user) {
$user_id = $user->id;
} else {
$user_id = DB::table('users')->insertGetId([
'url' => $request->input('add_user'),
'created_at' => date('Y-m-d H:i:s')
]);
}
// Add access to the database
$exists = DB::table('database_users')->where('database_id','=',$db->id)->where('user_id','=',$user_id)->first();
if(!$exists) {
DB::table('database_users')->insert([
'database_id' => $db->id,
'user_id' => $user_id,
'created_at' => date('Y-m-d H:i:s')
]);
}
return redirect('/settings/'.$db->name);
} else if($request->input('micropub_endpoint')) {
DB::table('databases')->where('id', $db->id)
->update([
'micropub_endpoint' => $request->input('micropub_endpoint'),
'micropub_token' => $request->input('micropub_token'),
]);
return redirect('/settings/'.$db->name);
} else if($request->input('ping_urls')) {
DB::table('databases')->where('id', $db->id)
->update([
'ping_urls' => $request->input('ping_urls'),
]);
return redirect('/settings/'.$db->name);
} else if($request->input('timezone')) {
DB::table('databases')->where('id', $db->id)
->update([
'timezone' => $request->input('timezone'),
'metric' => $request->input('metric'),
]);
return redirect('/settings/'.$db->name);
}
}
public function micropubStart(Request $request, $dbName) {
$me = \IndieAuth\Client::normalizeMeURL($request->input('me'));
if(!$me) {
return view('auth/error', ['error' => 'Invalid URL']);
}
$state = \IndieAuth\Client::generateStateParameter();
$authorizationEndpoint = \IndieAuth\Client::discoverAuthorizationEndpoint($me);
// Isolate session variables to this variable only
session([$dbName => [
'auth_state' => $state,
'attempted_me' => $me,
'authorization_endpoint' => $authorizationEndpoint
]]);
// If the user specified only an authorization endpoint, use that
if(!$authorizationEndpoint) {
// Otherwise, fall back to indieauth.com
$authorizationEndpoint = env('DEFAULT_AUTH_ENDPOINT');
}
$authorizationURL = \IndieAuth\Client::buildAuthorizationURL($authorizationEndpoint, $me, $this->_databaseRedirectURI($dbName), env('BASE_URL'), $state, 'create');
return redirect($authorizationURL);
}
public function micropubCallback(Request $request, $dbName) {
$settingsSession = session($dbName);
// Start all error checking
if(!$settingsSession['auth_state'] || !$settingsSession['attempted_me']) {
return view('auth/error', ['error' => 'Missing state information. Start over.']);
}
if($request->input('error')) {
return view('auth/error', ['error' => $request->input('error')]);
}
if($settingsSession['auth_state'] != $request->input('state')) {
return view('auth/error', ['error' => 'State did not match. Start over.']);
}
// Verify that the database exists and doesn't have micropub already
$db = DB::table('databases')
->where('name','=',$dbName)
->first();
if (!$db) {
return view('auth/error', ['error' => 'Database requested does not exist']);
}
if (!empty($db->micropub_token)) {
return view('auth/error', ['error' => 'Database already is connected to a micropub endpoint. Please remove the existing endpoint first.']);
}
$tokenEndpoint = \IndieAuth\Client::discoverTokenEndpoint($settingsSession['attempted_me']);
if (empty($tokenEndpoint)) {
return view('auth/error', ['error' => 'Could not find user\'s token endpoint']);
}
$token = \IndieAuth\Client::getAccessToken($tokenEndpoint, $request->input('code'), $settingsSession['attempted_me'], $this->_databaseRedirectURI($dbName), env('BASE_URL'));
if($token && array_key_exists('me', $token)) {
// forget the current db settings session
session()->forget($dbName);
if (!array_key_exists('access_token', $token)) {
return view('auth/error', ['error' => 'Could not find access_token']);
}
if (!array_key_exists('scope', $token) || strpos($token['scope'], 'create') === false) {
return view('auth/error', ['error' => 'You were not granted a create scope']);
}
$micropubEndpoint = \IndieAuth\Client::discoverMicropubEndpoint($token['me']);
$micropubToken = $token['access_token'];
DB::table('databases')->where('id', $db->id)
->update([
'micropub_endpoint' => $micropubEndpoint,
'micropub_token' => $micropubToken
]);
} else {
return view('auth/error', ['error' => 'No url id found']);
}
return redirect('/settings/'.$db->name);
}
public function removeMicropub(Request $request, $dbName) {
$db = DB::table('databases')
->where('name','=',$dbName)
->first();
if (!$db) {
return view('auth/error', ['error' => 'Database requested does not exist']);
}
DB::table('databases')->where('id', $db->id)
->update([
'micropub_endpoint' => '',
'micropub_token' => ''
]);
return redirect('/settings/'.$db->name);
}
private function _databaseRedirectURI($dbName) {
return env('BASE_URL') . 'settings/' . $dbName . '/auth/callback';
}
}