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 $host = $this->getHost($newKey != '' ? $newKey : $server, $force);
24 if ($host->endpoints->incomplete()) {
25 $host->server = $server;
26 $host->loadEndpoints();
29 list($redirect_uri, $socketStr) = $this->getHttpServerData();
31 echo "To authenticate, open the following URL:\n"
32 . $this->getBrowserAuthUrl($host, $user, $redirect_uri, $state)
35 $authParams = $this->startHttpServer($socketStr);
36 if ($authParams['state'] != $state) {
37 Log::err('Wrong "state" parameter value: ' . $authParams['state']);
40 $code = $authParams['code'];
41 $userUrl = $authParams['me'];
42 $this->verifyAuthCode($host, $code, $state, $redirect_uri, $userUrl);
44 $accessToken = $this->fetchAccessToken(
45 $host, $userUrl, $code, $redirect_uri, $state
48 //all fine. update config
49 $host->user = $userUrl;
50 $host->token = $accessToken;
55 $hostKey = $this->cfg->getHostByName($server);
56 if ($hostKey === null) {
57 $keyBase = parse_url($host->server, PHP_URL_HOST);
60 while (isset($this->cfg->hosts[$newKey])) {
61 $newKey = $keyBase . ++$count;
66 $this->cfg->hosts[$hostKey] = $host;
68 echo "Server configuration $hostKey saved successfully.\n";
71 protected function fetchAccessToken(
72 $host, $userUrl, $code, $redirect_uri, $state
74 $req = new \HTTP_Request2($host->endpoints->token, 'POST');
75 if (version_compare(PHP_VERSION, '5.6.0', '<')) {
76 //correct ssl validation on php 5.5 is a pain, so disable
77 $req->setConfig('ssl_verify_host', false);
78 $req->setConfig('ssl_verify_peer', false);
80 $req->setHeader('Content-Type: application/x-www-form-urlencoded');
86 'redirect_uri' => $redirect_uri,
87 'client_id' => static::$client_id,
93 if ($res->getHeader('content-type') != 'application/x-www-form-urlencoded') {
94 Log::err('Wrong content type in auth verification response');
97 parse_str($res->getBody(), $tokenParams);
98 if (!isset($tokenParams['access_token'])) {
99 Log::err('"access_token" missing');
103 $accessToken = $tokenParams['access_token'];
107 protected function getBrowserAuthUrl($host, $user, $redirect_uri, $state)
109 return $host->endpoints->authorization
110 . '?me=' . urlencode($user)
111 . '&client_id=' . urlencode(static::$client_id)
112 . '&redirect_uri=' . urlencode($redirect_uri)
115 . '&response_type=code';
118 protected function getHost($keyOrServer, $force)
120 $host = new Config_Host();
121 $key = $this->cfg->getHostByName($keyOrServer);
123 $host = $this->cfg->hosts[$key];
124 if (!$force && $host->token != '') {
125 Log::err('Token already available');
132 protected function getHttpServerData()
137 if (isset($_SERVER['SSH_CONNECTION'])) {
138 $parts = explode(' ', $_SERVER['SSH_CONNECTION']);
139 if (count($parts) >= 3) {
143 if (strpos($ip, ':') !== false) {
145 $ip = '[' . $ip . ']';
148 $redirect_uri = 'http://' . $ip . ':' . $port . '/callback';
149 $socketStr = 'tcp://' . $ip . ':' . $port;
150 return [$redirect_uri, $socketStr];
153 protected function verifyAuthCode($host, $code, $state, $redirect_uri, $me)
155 $req = new \HTTP_Request2($host->endpoints->authorization, 'POST');
156 if (version_compare(PHP_VERSION, '5.6.0', '<')) {
157 //correct ssl validation on php 5.5 is a pain, so disable
158 $req->setConfig('ssl_verify_host', false);
159 $req->setConfig('ssl_verify_peer', false);
161 $req->setHeader('Content-Type: application/x-www-form-urlencoded');
167 'client_id' => static::$client_id,
168 'redirect_uri' => $redirect_uri,
173 if ($res->getHeader('content-type') != 'application/x-www-form-urlencoded') {
174 Log::err('Wrong content type in auth verification response');
177 parse_str($res->getBody(), $verifiedParams);
178 if (!isset($verifiedParams['me'])
179 || $verifiedParams['me'] !== $me
181 Log::err('Non-matching "me" values');
186 protected function startHttpServer($socketStr)
188 $responseOk = "HTTP/1.0 200 OK\r\n"
189 . "Content-Type: text/plain\r\n"
191 . "Ok. You may close this tab and return to the shell.\r\n";
192 $responseErr = "HTTP/1.0 400 Bad Request\r\n"
193 . "Content-Type: text/plain\r\n"
197 //5 minutes should be enough for the user to confirm
198 ini_set('default_socket_timeout', 60 * 5);
199 $server = stream_socket_server($socketStr, $errno, $errstr);
201 Log::err('Error starting HTTP server');
206 $sock = stream_socket_accept($server);
208 Log::err('Error accepting socket connection');
215 //read request headers
216 while (false !== ($line = trim(fgets($sock)))) {
220 $regex = '#^Content-Length:\s*([[:digit:]]+)\s*$#i';
221 if (preg_match($regex, $line, $matches)) {
222 $content_length = (int) $matches[1];
228 if ($content_length > 0) {
229 $body = fread($sock, $content_length);
233 list($method, $url, $httpver) = explode(' ', $headers[0]);
234 if ($method == 'GET') {
235 $parts = parse_url($url);
236 if (isset($parts['path']) && $parts['path'] == '/callback'
237 && isset($parts['query'])
239 parse_str($parts['query'], $query);
240 if (isset($query['code'])
241 && isset($query['state'])
242 && isset($query['me'])
244 fwrite($sock, $responseOk);
251 fwrite($sock, $responseErr);