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();
39 echo "To authenticate, open the following URL:\n"
40 . $this->getBrowserAuthUrl($host, $user, $redirect_uri, $state)
43 $authParams = $this->startHttpServer($socketStr);
44 if ($authParams['state'] != $state) {
45 Log::err('Wrong "state" parameter value: ' . $authParams['state']);
48 $code = $authParams['code'];
49 $userUrl = $authParams['me'];
51 $accessToken = $this->fetchAccessToken(
52 $host, $userUrl, $code, $redirect_uri, $state
55 //all fine. update config
56 $host->user = $userUrl;
57 $host->token = $accessToken;
62 $hostKey = $this->cfg->getHostByName($server);
63 if ($hostKey === null) {
64 $keyBase = parse_url($host->server, PHP_URL_HOST);
67 while (isset($this->cfg->hosts[$newKey])) {
68 $newKey = $keyBase . ++$count;
73 $this->cfg->hosts[$hostKey] = $host;
75 echo "Server configuration $hostKey saved successfully.\n";
78 protected function fetchAccessToken(
79 $host, $userUrl, $code, $redirect_uri, $state
81 $req = new \HTTP_Request2($host->endpoints->token, 'POST');
82 if (version_compare(PHP_VERSION, '5.6.0', '<')) {
83 //correct ssl validation on php 5.5 is a pain, so disable
84 $req->setConfig('ssl_verify_host', false);
85 $req->setConfig('ssl_verify_peer', false);
87 $req->setHeader('Content-Type: application/x-www-form-urlencoded');
93 'redirect_uri' => $redirect_uri,
94 'client_id' => static::$client_id,
100 if (intval($res->getStatus() / 100) !== 2) {
101 Log::err('Failed to fetch access token');
102 Log::err('Server responded with HTTP status code ' . $res->getStatus());
103 Log::err($res->getBody());
106 if ($res->getHeader('content-type') != 'application/x-www-form-urlencoded') {
107 Log::err('Wrong content type in auth verification response');
110 parse_str($res->getBody(), $tokenParams);
111 if (!isset($tokenParams['access_token'])) {
112 Log::err('"access_token" missing');
116 $accessToken = $tokenParams['access_token'];
120 protected function getBrowserAuthUrl($host, $user, $redirect_uri, $state)
122 return $host->endpoints->authorization
123 . '?me=' . urlencode($user)
124 . '&client_id=' . urlencode(static::$client_id)
125 . '&redirect_uri=' . urlencode($redirect_uri)
128 . '&response_type=code';
131 protected function getHost($keyOrServer, $force)
133 $host = new Config_Host();
134 $key = $this->cfg->getHostByName($keyOrServer);
136 $host = $this->cfg->hosts[$key];
137 if (!$force && $host->token != '') {
138 Log::err('Token already available');
145 protected function getHttpServerData()
150 if (isset($_SERVER['SSH_CONNECTION'])) {
151 $parts = explode(' ', $_SERVER['SSH_CONNECTION']);
152 if (count($parts) >= 3) {
156 if (strpos($ip, ':') !== false) {
158 $ip = '[' . $ip . ']';
161 $redirect_uri = 'http://' . $ip . ':' . $port . '/callback';
162 $socketStr = 'tcp://' . $ip . ':' . $port;
163 return [$redirect_uri, $socketStr];
166 protected function startHttpServer($socketStr)
168 $responseOk = "HTTP/1.0 200 OK\r\n"
169 . "Content-Type: text/plain\r\n"
171 . "Ok. You may close this tab and return to the shell.\r\n";
172 $responseErr = "HTTP/1.0 400 Bad Request\r\n"
173 . "Content-Type: text/plain\r\n"
177 //5 minutes should be enough for the user to confirm
178 ini_set('default_socket_timeout', 60 * 5);
179 $server = stream_socket_server($socketStr, $errno, $errstr);
181 Log::err('Error starting HTTP server');
186 $sock = stream_socket_accept($server);
188 Log::err('Error accepting socket connection');
195 //read request headers
196 while (false !== ($line = trim(fgets($sock)))) {
200 $regex = '#^Content-Length:\s*([[:digit:]]+)\s*$#i';
201 if (preg_match($regex, $line, $matches)) {
202 $content_length = (int) $matches[1];
208 if ($content_length > 0) {
209 $body = fread($sock, $content_length);
213 list($method, $url, $httpver) = explode(' ', $headers[0]);
214 if ($method == 'GET') {
215 $parts = parse_url($url);
216 if (isset($parts['path']) && $parts['path'] == '/callback'
217 && isset($parts['query'])
219 parse_str($parts['query'], $query);
220 if (isset($query['code'])
221 && isset($query['state'])
222 && isset($query['me'])
224 fwrite($sock, $responseOk);
231 fwrite($sock, $responseErr);