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@@ -19,6 +19,8 @@ class FreshRSS_Feed extends Minz_Model {
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private $ttl = -2;
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private $hash = null;
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private $lockPath = '';
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+ private $hubUrl = '';
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+ private $selfUrl = '';
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public function __construct($url, $validate=true) {
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if ($validate) {
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@@ -49,6 +51,12 @@ class FreshRSS_Feed extends Minz_Model {
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public function url() {
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return $this->url;
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}
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+ public function selfUrl() {
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+ return $this->selfUrl;
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+ }
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+ public function hubUrl() {
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+ return $this->hubUrl;
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+ }
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public function category() {
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return $this->category;
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}
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@@ -96,6 +104,16 @@ class FreshRSS_Feed extends Minz_Model {
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public function ttl() {
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return $this->ttl;
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}
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+ // public function ttlExpire() {
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+ // $ttl = $this->ttl;
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+ // if ($ttl == -2) { //Default
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+ // $ttl = FreshRSS_Context::$user_conf->ttl_default;
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+ // }
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+ // if ($ttl == -1) { //Never
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+ // $ttl = 64000000; //~2 years. Good enough for PubSubHubbub logic
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+ // }
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+ // return $this->lastUpdate + $ttl;
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+ // }
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public function nbEntries() {
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if ($this->nbEntries < 0) {
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$feedDAO = FreshRSS_Factory::createFeedDao();
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@@ -226,6 +244,11 @@ class FreshRSS_Feed extends Minz_Model {
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throw new FreshRSS_Feed_Exception(($errorMessage == '' ? 'Feed error' : $errorMessage) . ' [' . $url . ']');
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}
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+ $links = $feed->get_links('self');
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+ $this->selfUrl = isset($links[0]) ? $links[0] : null;
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+ $links = $feed->get_links('hub');
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+ $this->hubUrl = isset($links[0]) ? $links[0] : null;
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+
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if ($loadDetails) {
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// si on a utilisé l'auto-discover, notre url va avoir changé
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$subscribe_url = $feed->subscribe_url(false);
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@@ -259,7 +282,7 @@ class FreshRSS_Feed extends Minz_Model {
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}
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}
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- private function loadEntries($feed) {
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+ public function loadEntries($feed) {
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$entries = array();
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foreach ($feed->get_items() as $item) {
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@@ -333,4 +356,129 @@ class FreshRSS_Feed extends Minz_Model {
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function unlock() {
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@unlink($this->lockPath);
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}
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+
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+ //<PubSubHubbub>
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+
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+ function pubSubHubbubEnabled() {
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+ $url = $this->selfUrl ? $this->selfUrl : $this->url;
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+ $hubFilename = PSHB_PATH . '/feeds/' . base64url_encode($url) . '/!hub.json';
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+ if ($hubFile = @file_get_contents($hubFilename)) {
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+ $hubJson = json_decode($hubFile, true);
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+ if ($hubJson && empty($hubJson['error']) &&
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+ (empty($hubJson['lease_end']) || $hubJson['lease_end'] > time())) {
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+ return true;
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+ }
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+ }
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+ return false;
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+ }
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+
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+ function pubSubHubbubError($error = true) {
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+ $url = $this->selfUrl ? $this->selfUrl : $this->url;
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+ $hubFilename = PSHB_PATH . '/feeds/' . base64url_encode($url) . '/!hub.json';
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+ $hubFile = @file_get_contents($hubFilename);
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+ $hubJson = $hubFile ? json_decode($hubFile, true) : array();
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+ if (!isset($hubJson['error']) || $hubJson['error'] !== (bool)$error) {
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+ $hubJson['error'] = (bool)$error;
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+ file_put_contents($hubFilename, json_encode($hubJson));
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+ file_put_contents(USERS_PATH . '/_/log_pshb.txt', date('c') . "\t"
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+ . 'Set error to ' . ($error ? 1 : 0) . ' for ' . $url . "\n", FILE_APPEND);
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+ }
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+ return false;
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+ }
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+
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+ function pubSubHubbubPrepare() {
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+ $key = '';
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+ if (FreshRSS_Context::$system_conf->base_url && $this->hubUrl && $this->selfUrl && @is_dir(PSHB_PATH)) {
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+ $path = PSHB_PATH . '/feeds/' . base64url_encode($this->selfUrl);
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+ $hubFilename = $path . '/!hub.json';
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+ if ($hubFile = @file_get_contents($hubFilename)) {
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+ $hubJson = json_decode($hubFile, true);
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+ if (!$hubJson || empty($hubJson['key']) || !ctype_xdigit($hubJson['key'])) {
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+ $text = 'Invalid JSON for PubSubHubbub: ' . $this->url;
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+ Minz_Log::warning($text);
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+ file_put_contents(USERS_PATH . '/_/log_pshb.txt', date('c') . "\t" . $text . "\n", FILE_APPEND);
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+ return false;
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+ }
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+ if ((!empty($hubJson['lease_end'])) && ($hubJson['lease_end'] < (time() + (3600 * 23)))) { //TODO: Make a better policy
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+ $text = 'PubSubHubbub lease ends at '
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+ . date('c', empty($hubJson['lease_end']) ? time() : $hubJson['lease_end'])
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+ . ' and needs renewal: ' . $this->url;
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+ Minz_Log::warning($text);
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+ file_put_contents(USERS_PATH . '/_/log_pshb.txt', date('c') . "\t" . $text . "\n", FILE_APPEND);
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+ $key = $hubJson['key']; //To renew our lease
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+ } elseif (((!empty($hubJson['error'])) || empty($hubJson['lease_end'])) &&
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+ (empty($hubJson['lease_start']) || $hubJson['lease_start'] < time() - (3600 * 23))) { //Do not renew too often
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+ $key = $hubJson['key']; //To renew our lease
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+ }
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+ } else {
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+ @mkdir($path, 0777, true);
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+ $key = sha1($path . FreshRSS_Context::$system_conf->salt . uniqid(mt_rand(), true));
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+ $hubJson = array(
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+ 'hub' => $this->hubUrl,
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+ 'key' => $key,
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+ );
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+ file_put_contents($hubFilename, json_encode($hubJson));
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+ @mkdir(PSHB_PATH . '/keys/');
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+ file_put_contents(PSHB_PATH . '/keys/' . $key . '.txt', base64url_encode($this->selfUrl));
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+ $text = 'PubSubHubbub prepared for ' . $this->url;
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+ Minz_Log::debug($text);
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+ file_put_contents(USERS_PATH . '/_/log_pshb.txt', date('c') . "\t" . $text . "\n", FILE_APPEND);
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+ }
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+ $currentUser = Minz_Session::param('currentUser');
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+ if (ctype_alnum($currentUser) && !file_exists($path . '/' . $currentUser . '.txt')) {
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+ touch($path . '/' . $currentUser . '.txt');
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+ }
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+ }
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+ return $key;
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+ }
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+
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+ //Parameter true to subscribe, false to unsubscribe.
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+ function pubSubHubbubSubscribe($state) {
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+ if (FreshRSS_Context::$system_conf->base_url && $this->hubUrl && $this->selfUrl) {
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+ $hubFilename = PSHB_PATH . '/feeds/' . base64url_encode($this->selfUrl) . '/!hub.json';
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+ $hubFile = @file_get_contents($hubFilename);
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+ if ($hubFile === false) {
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+ Minz_Log::warning('JSON not found for PubSubHubbub: ' . $this->url);
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+ return false;
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+ }
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+ $hubJson = json_decode($hubFile, true);
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+ if (!$hubJson || empty($hubJson['key']) || !ctype_xdigit($hubJson['key'])) {
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+ Minz_Log::warning('Invalid JSON for PubSubHubbub: ' . $this->url);
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+ return false;
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+ }
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+ $callbackUrl = checkUrl(FreshRSS_Context::$system_conf->base_url . 'api/pshb.php?k=' . $hubJson['key']);
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+ if ($callbackUrl == '') {
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+ Minz_Log::warning('Invalid callback for PubSubHubbub: ' . $this->url);
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+ return false;
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+ }
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+ $ch = curl_init();
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+ curl_setopt_array($ch, array(
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+ CURLOPT_URL => $this->hubUrl,
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+ CURLOPT_FOLLOWLOCATION => true,
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+ CURLOPT_RETURNTRANSFER => true,
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+ CURLOPT_USERAGENT => _t('gen.freshrss') . '/' . FRESHRSS_VERSION . ' (' . PHP_OS . '; ' . FRESHRSS_WEBSITE . ')',
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+ CURLOPT_POSTFIELDS => 'hub.verify=sync'
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+ . '&hub.mode=' . ($state ? 'subscribe' : 'unsubscribe')
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+ . '&hub.topic=' . urlencode($this->selfUrl)
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+ . '&hub.callback=' . urlencode($callbackUrl)
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+ )
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+ );
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+ $response = curl_exec($ch);
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+ $info = curl_getinfo($ch);
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+
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+ file_put_contents(USERS_PATH . '/_/log_pshb.txt', date('c') . "\t" .
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+ 'PubSubHubbub ' . ($state ? 'subscribe' : 'unsubscribe') . ' to ' . $this->selfUrl .
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+ ' with callback ' . $callbackUrl . ': ' . $info['http_code'] . ' ' . $response . "\n", FILE_APPEND);
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+
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+ if (!$state) { //unsubscribe
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+ $hubJson['lease_end'] = time() - 60;
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+ file_put_contents($hubFilename, json_encode($hubJson));
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+ }
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+
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+ return substr($info['http_code'], 0, 1) == '2';
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+ }
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+ return false;
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+ }
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+
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+ //</PubSubHubbub>
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}
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Alexandre Alapetite