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 $cfg)
17 public function run($server, $user, $newKey, $force)
19 $server = Validator::url($server, 'server');
21 //indieweb: homepage is your identity
24 $user = Validator::url($user, 'user');
27 $host = $this->getHost($newKey != '' ? $newKey : $server, $force);
32 if ($host->endpoints->incomplete()) {
33 $host->server = $server;
34 $host->loadEndpoints();
37 list($redirect_uri, $socketStr) = $this->getHttpServerData();
40 "To authenticate, open the following URL:\n"
41 . $this->getBrowserAuthUrl($host, $user, $redirect_uri, $state)
44 $authParams = $this->startHttpServer($socketStr);
45 if ($authParams['state'] != $state) {
46 Log::err('Wrong "state" parameter value: ' . $authParams['state']);
49 $code = $authParams['code'];
50 $userUrl = $authParams['me'];
52 $accessToken = $this->fetchAccessToken(
53 $host, $userUrl, $code, $redirect_uri, $state
56 //all fine. update config
57 $host->user = $userUrl;
58 $host->token = $accessToken;
63 $hostKey = $this->cfg->getHostByName($server);
64 if ($hostKey === null) {
65 $keyBase = parse_url($host->server, PHP_URL_HOST);
68 while (isset($this->cfg->hosts[$newKey])) {
69 $newKey = $keyBase . ++$count;
74 $this->cfg->hosts[$hostKey] = $host;
76 Log::info("Server configuration $hostKey saved successfully.");
79 protected function fetchAccessToken(
80 $host, $userUrl, $code, $redirect_uri, $state
82 $req = new \HTTP_Request2($host->endpoints->token, 'POST');
83 if (version_compare(PHP_VERSION, '5.6.0', '<')) {
84 //correct ssl validation on php 5.5 is a pain, so disable
85 $req->setConfig('ssl_verify_host', false);
86 $req->setConfig('ssl_verify_peer', false);
88 $req->setHeader('Content-Type: application/x-www-form-urlencoded');
94 'redirect_uri' => $redirect_uri,
95 'client_id' => static::$client_id,
101 if (intval($res->getStatus() / 100) !== 2) {
102 Log::err('Failed to fetch access token');
103 Log::err('Server responded with HTTP status code ' . $res->getStatus());
104 Log::err($res->getBody());
107 if ($res->getHeader('content-type') != 'application/x-www-form-urlencoded') {
108 Log::err('Wrong content type in auth verification response');
111 parse_str($res->getBody(), $tokenParams);
112 if (!isset($tokenParams['access_token'])) {
113 Log::err('"access_token" missing');
117 $accessToken = $tokenParams['access_token'];
121 protected function getBrowserAuthUrl($host, $user, $redirect_uri, $state)
123 return $host->endpoints->authorization
124 . '?me=' . urlencode($user)
125 . '&client_id=' . urlencode(static::$client_id)
126 . '&redirect_uri=' . urlencode($redirect_uri)
129 . '&response_type=code';
132 protected function getHost($keyOrServer, $force)
134 $host = new Config_Host();
135 $key = $this->cfg->getHostByName($keyOrServer);
137 $host = $this->cfg->hosts[$key];
138 if (!$force && $host->token != '') {
139 Log::err('Token already available');
146 protected function getHttpServerData()
151 if (isset($_SERVER['SSH_CONNECTION'])) {
152 $parts = explode(' ', $_SERVER['SSH_CONNECTION']);
153 if (count($parts) >= 3) {
157 if (strpos($ip, ':') !== false) {
159 $ip = '[' . $ip . ']';
162 $redirect_uri = 'http://' . $ip . ':' . $port . '/callback';
163 $socketStr = 'tcp://' . $ip . ':' . $port;
164 return [$redirect_uri, $socketStr];
167 protected function startHttpServer($socketStr)
169 $responseOk = "HTTP/1.0 200 OK\r\n"
170 . "Content-Type: text/plain\r\n"
172 . "Ok. You may close this tab and return to the shell.\r\n";
173 $responseErr = "HTTP/1.0 400 Bad Request\r\n"
174 . "Content-Type: text/plain\r\n"
178 //5 minutes should be enough for the user to confirm
179 ini_set('default_socket_timeout', 60 * 5);
180 $server = stream_socket_server($socketStr, $errno, $errstr);
182 Log::err('Error starting HTTP server');
187 $sock = stream_socket_accept($server);
189 Log::err('Error accepting socket connection');
196 //read request headers
197 while (false !== ($line = trim(fgets($sock)))) {
201 $regex = '#^Content-Length:\s*([[:digit:]]+)\s*$#i';
202 if (preg_match($regex, $line, $matches)) {
203 $content_length = (int) $matches[1];
209 if ($content_length > 0) {
210 $body = fread($sock, $content_length);
214 list($method, $url, $httpver) = explode(' ', $headers[0]);
215 if ($method == 'GET') {
216 $parts = parse_url($url);
217 if (isset($parts['path']) && $parts['path'] == '/callback'
218 && isset($parts['query'])
220 parse_str($parts['query'], $query);
221 if (isset($query['code'])
222 && isset($query['state'])
223 && isset($query['me'])
225 fwrite($sock, $responseOk);
232 fwrite($sock, $responseErr);