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'];
50 $this->verifyAuthCode($host, $code, $state, $redirect_uri, $userUrl);
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 echo "Server configuration $hostKey saved successfully.\n";
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 ($res->getHeader('content-type') != 'application/x-www-form-urlencoded') {
102 Log::err('Wrong content type in auth verification response');
105 parse_str($res->getBody(), $tokenParams);
106 if (!isset($tokenParams['access_token'])) {
107 Log::err('"access_token" missing');
111 $accessToken = $tokenParams['access_token'];
115 protected function getBrowserAuthUrl($host, $user, $redirect_uri, $state)
117 return $host->endpoints->authorization
118 . '?me=' . urlencode($user)
119 . '&client_id=' . urlencode(static::$client_id)
120 . '&redirect_uri=' . urlencode($redirect_uri)
123 . '&response_type=code';
126 protected function getHost($keyOrServer, $force)
128 $host = new Config_Host();
129 $key = $this->cfg->getHostByName($keyOrServer);
131 $host = $this->cfg->hosts[$key];
132 if (!$force && $host->token != '') {
133 Log::err('Token already available');
140 protected function getHttpServerData()
145 if (isset($_SERVER['SSH_CONNECTION'])) {
146 $parts = explode(' ', $_SERVER['SSH_CONNECTION']);
147 if (count($parts) >= 3) {
151 if (strpos($ip, ':') !== false) {
153 $ip = '[' . $ip . ']';
156 $redirect_uri = 'http://' . $ip . ':' . $port . '/callback';
157 $socketStr = 'tcp://' . $ip . ':' . $port;
158 return [$redirect_uri, $socketStr];
161 protected function verifyAuthCode($host, $code, $state, $redirect_uri, $me)
163 $req = new \HTTP_Request2($host->endpoints->authorization, 'POST');
164 if (version_compare(PHP_VERSION, '5.6.0', '<')) {
165 //correct ssl validation on php 5.5 is a pain, so disable
166 $req->setConfig('ssl_verify_host', false);
167 $req->setConfig('ssl_verify_peer', false);
169 $req->setHeader('Content-Type: application/x-www-form-urlencoded');
175 'client_id' => static::$client_id,
176 'redirect_uri' => $redirect_uri,
181 if ($res->getHeader('content-type') != 'application/x-www-form-urlencoded') {
182 Log::err('Wrong content type in auth verification response');
185 parse_str($res->getBody(), $verifiedParams);
186 if (!isset($verifiedParams['me'])
187 || $verifiedParams['me'] !== $me
189 Log::err('Non-matching "me" values');
194 protected function startHttpServer($socketStr)
196 $responseOk = "HTTP/1.0 200 OK\r\n"
197 . "Content-Type: text/plain\r\n"
199 . "Ok. You may close this tab and return to the shell.\r\n";
200 $responseErr = "HTTP/1.0 400 Bad Request\r\n"
201 . "Content-Type: text/plain\r\n"
205 //5 minutes should be enough for the user to confirm
206 ini_set('default_socket_timeout', 60 * 5);
207 $server = stream_socket_server($socketStr, $errno, $errstr);
209 Log::err('Error starting HTTP server');
214 $sock = stream_socket_accept($server);
216 Log::err('Error accepting socket connection');
223 //read request headers
224 while (false !== ($line = trim(fgets($sock)))) {
228 $regex = '#^Content-Length:\s*([[:digit:]]+)\s*$#i';
229 if (preg_match($regex, $line, $matches)) {
230 $content_length = (int) $matches[1];
236 if ($content_length > 0) {
237 $body = fread($sock, $content_length);
241 list($method, $url, $httpver) = explode(' ', $headers[0]);
242 if ($method == 'GET') {
243 $parts = parse_url($url);
244 if (isset($parts['path']) && $parts['path'] == '/callback'
245 && isset($parts['query'])
247 parse_str($parts['query'], $query);
248 if (isset($query['code'])
249 && isset($query['state'])
250 && isset($query['me'])
252 fwrite($sock, $responseOk);
259 fwrite($sock, $responseErr);