5 * @link http://micropub.net/draft/
6 * @link http://indieweb.org/authorization-endpoint
10 public static $client_id = 'http://cweiske.de/shpub.htm';
12 public function __construct(Config $cfg)
17 public static function opts(\Console_CommandLine $optParser)
19 $cmd = $optParser->addCommand('connect');
24 'long_name' => '--force-update',
25 'description' => 'Force token update if token already available',
26 'action' => 'StoreTrue',
34 'description' => 'Server URL',
41 'description' => 'User URL',
48 'description' => 'Short name (key)',
53 public function run($server, $user, $newKey, $force)
55 $server = Validator::url($server, 'server');
57 //indieweb: homepage is your identity
60 $user = Validator::url($user, 'user');
63 $host = $this->getHost($newKey != '' ? $newKey : $server, $force);
68 if ($host->endpoints->incomplete()) {
69 $host->server = $server;
70 $host->loadEndpoints();
73 list($redirect_uri, $socketStr) = $this->getHttpServerData();
76 "To authenticate, open the following URL:\n"
77 . $this->getBrowserAuthUrl($host, $user, $redirect_uri, $state)
80 $authParams = $this->startHttpServer($socketStr);
81 if ($authParams['state'] != $state) {
82 Log::err('Wrong "state" parameter value: ' . $authParams['state']);
85 $code = $authParams['code'];
86 $userUrl = $authParams['me'];
88 $accessToken = $this->fetchAccessToken(
89 $host, $userUrl, $code, $redirect_uri, $state
92 //all fine. update config
93 $host->user = $userUrl;
94 $host->token = $accessToken;
99 $hostKey = $this->cfg->getHostByName($server);
100 if ($hostKey === null) {
101 $keyBase = parse_url($host->server, PHP_URL_HOST);
104 while (isset($this->cfg->hosts[$newKey])) {
105 $newKey = $keyBase . ++$count;
110 $this->cfg->hosts[$hostKey] = $host;
112 Log::info("Server configuration $hostKey saved successfully.");
115 protected function fetchAccessToken(
116 $host, $userUrl, $code, $redirect_uri, $state
118 $req = new \HTTP_Request2($host->endpoints->token, 'POST');
119 if (version_compare(PHP_VERSION, '5.6.0', '<')) {
120 //correct ssl validation on php 5.5 is a pain, so disable
121 $req->setConfig('ssl_verify_host', false);
122 $req->setConfig('ssl_verify_peer', false);
124 $req->setHeader('Content-Type: application/x-www-form-urlencoded');
130 'redirect_uri' => $redirect_uri,
131 'client_id' => static::$client_id,
137 if (intval($res->getStatus() / 100) !== 2) {
138 Log::err('Failed to fetch access token');
139 Log::err('Server responded with HTTP status code ' . $res->getStatus());
140 Log::err($res->getBody());
143 if ($res->getHeader('content-type') != 'application/x-www-form-urlencoded') {
144 Log::err('Wrong content type in auth verification response');
147 parse_str($res->getBody(), $tokenParams);
148 if (!isset($tokenParams['access_token'])) {
149 Log::err('"access_token" missing');
153 $accessToken = $tokenParams['access_token'];
157 protected function getBrowserAuthUrl($host, $user, $redirect_uri, $state)
159 return $host->endpoints->authorization
160 . '?me=' . urlencode($user)
161 . '&client_id=' . urlencode(static::$client_id)
162 . '&redirect_uri=' . urlencode($redirect_uri)
165 . '&response_type=code';
168 protected function getHost($keyOrServer, $force)
170 $host = new Config_Host();
171 $key = $this->cfg->getHostByName($keyOrServer);
173 $host = $this->cfg->hosts[$key];
174 if (!$force && $host->token != '') {
175 Log::err('Token already available');
182 protected function getHttpServerData()
187 if (isset($_SERVER['SSH_CONNECTION'])) {
188 $parts = explode(' ', $_SERVER['SSH_CONNECTION']);
189 if (count($parts) >= 3) {
193 if (strpos($ip, ':') !== false) {
195 $ip = '[' . $ip . ']';
198 $redirect_uri = 'http://' . $ip . ':' . $port . '/callback';
199 $socketStr = 'tcp://' . $ip . ':' . $port;
200 return [$redirect_uri, $socketStr];
203 protected function startHttpServer($socketStr)
205 $responseOk = "HTTP/1.0 200 OK\r\n"
206 . "Content-Type: text/plain\r\n"
208 . "Ok. You may close this tab and return to the shell.\r\n";
209 $responseErr = "HTTP/1.0 400 Bad Request\r\n"
210 . "Content-Type: text/plain\r\n"
214 //5 minutes should be enough for the user to confirm
215 ini_set('default_socket_timeout', 60 * 5);
216 $server = stream_socket_server($socketStr, $errno, $errstr);
218 Log::err('Error starting HTTP server');
223 $sock = stream_socket_accept($server);
225 Log::err('Error accepting socket connection');
232 //read request headers
233 while (false !== ($line = trim(fgets($sock)))) {
237 $regex = '#^Content-Length:\s*([[:digit:]]+)\s*$#i';
238 if (preg_match($regex, $line, $matches)) {
239 $content_length = (int) $matches[1];
245 if ($content_length > 0) {
246 $body = fread($sock, $content_length);
250 list($method, $url, $httpver) = explode(' ', $headers[0]);
251 if ($method == 'GET') {
252 $parts = parse_url($url);
253 if (isset($parts['path']) && $parts['path'] == '/callback'
254 && isset($parts['query'])
256 parse_str($parts['query'], $query);
257 if (isset($query['code'])
258 && isset($query['state'])
259 && isset($query['me'])
261 fwrite($sock, $responseOk);
268 fwrite($sock, $responseErr);