logger("profile-check generation: ".$generation." Network: ".$network." URL: ".$profile_url." name: ".$name." avatar: ".$profile_photo, LOGGER_DEBUG);
- poco_check_server($server_url, $network);
+ // We check the server url to be sure that it is a real one
+ $server_url2 = poco_detect_server($profile_url);
+
+ // We are no sure that it is a correct URL. So we use it in the future
+ if ($server_url2 != "") {
+ $server_url = $server_url2;
+ }
+
+ // The server URL doesn't seem to be valid, so we don't store it.
+ if (!poco_check_server($server_url, $network)) {
+ $server_url = "";
+ }
$gcontact = array("url" => $profile_url,
"addr" => $addr,
// Mastodon
if ($server_url == "") {
- $red = preg_replace("=(https?://)(.*)/users/(.*)=ism", "$1$2", $profile);
- if ($red != $profile) {
- $server_url = $red;
+ $mastodon = preg_replace("=(https?://)(.*)/users/(.*)=ism", "$1$2", $profile);
+ if ($mastodon != $profile) {
+ $server_url = $mastodon;
$network = NETWORK_OSTATUS;
}
}
+ // Numeric OStatus variant
+ if ($server_url == "") {
+ $ostatus = preg_replace("=(https?://)(.*)/user/(.*)=ism", "$1$2", $profile);
+ if ($ostatus != $profile) {
+ $server_url = $ostatus;
+ $network = NETWORK_OSTATUS;
+ }
+ }
+
+ // Wild guess
+ if ($server_url == "") {
+ $base = preg_replace("=(https?://)(.*?)/(.*)=ism", "$1$2", $profile);
+ if (base != $profile) {
+ $server_url = $base;
+ $network = NETWORK_PHANTOM;
+ }
+ }
+
+ if ($server_url == "") {
+ return "";
+ }
+
+ $r = q("SELECT `id` FROM `gserver` WHERE `nurl` = '%s' AND `last_contact` > `last_failure`",
+ dbesc(normalise_link($server_url)));
+ if (dbm::is_result($r)) {
+ return $server_url;
+ }
+
+ // Fetch the host-meta to check if this really is a server
+ $serverret = z_fetch_url($server_url."/.well-known/host-meta");
+ if (!$serverret["success"]) {
+ return "";
+ }
+
return $server_url;
}
q("UPDATE `gcontact` SET `created` = '%s' WHERE `nurl` = '%s'",
dbesc(datetime_convert()), dbesc(normalise_link($profile)));
- if ($gcontacts[0]["server_url"] != "")
+ if ($gcontacts[0]["server_url"] != "") {
$server_url = $gcontacts[0]["server_url"];
- else
+ }
+ if (($server_url == '') OR ($gcontacts[0]["server_url"] == $gcontacts[0]["nurl"])) {
$server_url = poco_detect_server($profile);
+ }
if (!in_array($gcontacts[0]["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_FEED, NETWORK_OSTATUS, ""))) {
logger("Profile ".$profile.": Network type ".$gcontacts[0]["network"]." can't be checked", LOGGER_DEBUG);
return ($val);
}
+/**
+ * @brief Detect server type (Hubzilla or Friendica) via the poco data
+ *
+ * @param object $data POCO data
+ * @return array Server data
+ */
+function poco_detect_poco_data($data) {
+ $server = false;
+
+ if (!isset($data->entry)) {
+ return false;
+ }
+
+ if (count($data->entry) == 0) {
+ return false;
+ }
+
+ if (!isset($data->entry[0]->urls)) {
+ return false;
+ }
+
+ if (count($data->entry[0]->urls) == 0) {
+ return false;
+ }
+
+ foreach ($data->entry[0]->urls AS $url) {
+ if ($url->type == 'zot') {
+ $server = array();
+ $server["platform"] = 'Hubzilla';
+ $server["network"] = NETWORK_DIASPORA;
+ return $server;
+ }
+ }
+ return false;
+}
+
+/**
+ * @brief Detect server type (Hubzilla or Friendica) via the front page body
+ *
+ * @param string $body Front page of the server
+ * @return array Server data
+ */
+function poco_detect_server_type($body) {
+ $server = false;
+
+ $doc = new \DOMDocument();
+ @$doc->loadHTML($body);
+ $xpath = new \DomXPath($doc);
+
+ $list = $xpath->query("//meta[@name]");
+
+ foreach ($list as $node) {
+ $attr = array();
+ if ($node->attributes->length) {
+ foreach ($node->attributes as $attribute) {
+ $attr[$attribute->name] = $attribute->value;
+ }
+ }
+ if ($attr['name'] == 'generator') {
+ $version_part = explode(" ", $attr['content']);
+ if (count($version_part) == 2) {
+ if (in_array($version_part[0], array("Friendika", "Friendica"))) {
+ $server = array();
+ $server["platform"] = $version_part[0];
+ $server["version"] = $version_part[1];
+ $server["network"] = NETWORK_DFRN;
+ }
+ }
+ }
+ }
+
+ if (!$server) {
+ $list = $xpath->query("//meta[@property]");
+
+ foreach ($list as $node) {
+ $attr = array();
+ if ($node->attributes->length) {
+ foreach ($node->attributes as $attribute) {
+ $attr[$attribute->name] = $attribute->value;
+ }
+ }
+ if ($attr['property'] == 'generator') {
+ if (in_array($attr['content'], array("hubzilla", "BlaBlaNet"))) {
+ $server = array();
+ $server["platform"] = $attr['content'];
+ $server["version"] = "";
+ $server["network"] = NETWORK_DIASPORA;
+ }
+ }
+ }
+ }
+
+ if (!$server) {
+ return false;
+ }
+
+ $server["site_name"] = $xpath->evaluate($element."//head/title/text()", $context)->item(0)->nodeValue;
+ return $server;
+}
+
function poco_check_server($server_url, $network = "", $force = false) {
// Unify the server address
return false;
$servers = q("SELECT * FROM `gserver` WHERE `nurl` = '%s'", dbesc(normalise_link($server_url)));
- if ($servers) {
+ if (dbm::is_result($servers)) {
if ($servers[0]["created"] == "0000-00-00 00:00:00")
q("UPDATE `gserver` SET `created` = '%s' WHERE `nurl` = '%s'",
logger("Server ".$server_url." is outdated or unknown. Start discovery. Force: ".$force." Created: ".$servers[0]["created"]." Failure: ".$last_failure." Contact: ".$last_contact, LOGGER_DEBUG);
$failure = false;
+ $possible_failure = false;
$orig_last_failure = $last_failure;
+ $orig_last_contact = $last_contact;
// Check if the page is accessible via SSL.
+ $orig_server_url = $server_url;
$server_url = str_replace("http://", "https://", $server_url);
- $serverret = z_fetch_url($server_url."/.well-known/host-meta");
+
+ // We set the timeout to 20 seconds since this operation should be done in no time if the server was vital
+ $serverret = z_fetch_url($server_url."/.well-known/host-meta", false, $redirects, array('timeout' => 20));
+
+ // Quit if there is a timeout.
+ // But we want to make sure to only quit if we are mostly sure that this server url fits.
+ if (dbm::is_result($servers) AND ($orig_server_url == $server_url) AND
+ ($serverret['errno'] == CURLE_OPERATION_TIMEDOUT)) {
+ logger("Connection to server ".$server_url." timed out.", LOGGER_DEBUG);
+ return false;
+ }
// Maybe the page is unencrypted only?
$xmlobj = @simplexml_load_string($serverret["body"],'SimpleXMLElement',0, "http://docs.oasis-open.org/ns/xri/xrd-1.0");
if (!$serverret["success"] OR ($serverret["body"] == "") OR (@sizeof($xmlobj) == 0) OR !is_object($xmlobj)) {
$server_url = str_replace("https://", "http://", $server_url);
- $serverret = z_fetch_url($server_url."/.well-known/host-meta");
+
+ // We set the timeout to 20 seconds since this operation should be done in no time if the server was vital
+ $serverret = z_fetch_url($server_url."/.well-known/host-meta", false, $redirects, array('timeout' => 20));
+
+ // Quit if there is a timeout
+ if ($serverret['errno'] == CURLE_OPERATION_TIMEDOUT) {
+ logger("Connection to server ".$server_url." timed out.", LOGGER_DEBUG);
+ return false;
+ }
$xmlobj = @simplexml_load_string($serverret["body"],'SimpleXMLElement',0, "http://docs.oasis-open.org/ns/xri/xrd-1.0");
}
if (!$serverret["success"] OR ($serverret["body"] == "") OR (sizeof($xmlobj) == 0) OR !is_object($xmlobj)) {
// Workaround for bad configured servers (known nginx problem)
- if ($serverret["debug"]["http_code"] != "403") {
+ if (!in_array($serverret["debug"]["http_code"], array("403", "404"))) {
$last_failure = datetime_convert();
$failure = true;
}
+ $possible_failure = true;
} elseif ($network == NETWORK_DIASPORA)
$last_contact = datetime_convert();
+ // If the server has no possible failure we reset the cached data
+ if (!$possible_failure) {
+ $version = "";
+ $platform = "";
+ $site_name = "";
+ $info = "";
+ $register_policy = -1;
+ }
+
+ // Look for poco
if (!$failure) {
- // Test for Diaspora
+ $serverret = z_fetch_url($server_url."/poco");
+ if ($serverret["success"]) {
+ $data = json_decode($serverret["body"]);
+ if (isset($data->totalResults)) {
+ $poco = $server_url."/poco";
+ $last_contact = datetime_convert();
+
+ $server = poco_detect_poco_data($data);
+ if ($server) {
+ $platform = $server['platform'];
+ $network = $server['network'];
+ $version = '';
+ $site_name = '';
+ }
+ }
+ }
+ }
+
+ if (!$failure) {
+ // Test for Diaspora, Hubzilla, Mastodon or older Friendica servers
$serverret = z_fetch_url($server_url);
- if (!$serverret["success"] OR ($serverret["body"] == ""))
+ if (!$serverret["success"] OR ($serverret["body"] == "")) {
+ $last_failure = datetime_convert();
$failure = true;
- else {
+ } else {
+ $server = poco_detect_server_type($serverret["body"]);
+ if ($server) {
+ $platform = $server['platform'];
+ $network = $server['network'];
+ $version = $server['version'];
+ $site_name = $server['site_name'];
+ $last_contact = datetime_convert();
+ }
+
$lines = explode("\n",$serverret["header"]);
- if(count($lines))
+ if(count($lines)) {
foreach($lines as $line) {
$line = trim($line);
if(stristr($line,'X-Diaspora-Version:')) {
$network = NETWORK_DIASPORA;
$versionparts = explode("-", $version);
$version = $versionparts[0];
+ $last_contact = datetime_convert();
}
if(stristr($line,'Server: Mastodon')) {
$network = NETWORK_OSTATUS;
// Mastodon doesn't reveal version numbers
$version = "";
+ $last_contact = datetime_convert();
}
}
+ }
}
}
- if (!$failure) {
+ if (!$failure AND ($poco == "")) {
// Test for Statusnet
// Will also return data for Friendica and GNU Social - but it will be overwritten later
// The "not implemented" is a special treatment for really, really old Friendica versions
if ($serverret["success"] AND ($serverret["body"] != '{"error":"not implemented"}') AND
($serverret["body"] != '') AND (strlen($serverret["body"]) < 30)) {
$platform = "StatusNet";
- $version = trim($serverret["body"], '"');
+ // Remove junk that some GNU Social servers return
+ $version = str_replace(chr(239).chr(187).chr(191), "", $serverret["body"]);
+ $version = trim($version, '"');
$network = NETWORK_OSTATUS;
+ $last_contact = datetime_convert();
}
// Test for GNU Social
if ($serverret["success"] AND ($serverret["body"] != '{"error":"not implemented"}') AND
($serverret["body"] != '') AND (strlen($serverret["body"]) < 30)) {
$platform = "GNU Social";
- $version = trim($serverret["body"], '"');
+ // Remove junk that some GNU Social servers return
+ $version = str_replace(chr(239).chr(187).chr(191), "", $serverret["body"]);
+ $version = trim($version, '"');
$network = NETWORK_OSTATUS;
+ $last_contact = datetime_convert();
}
+ }
+ if (!$failure) {
+ // Test for Hubzilla, Redmatrix or Friendica
$serverret = z_fetch_url($server_url."/api/statusnet/config.json");
if ($serverret["success"]) {
$data = json_decode($serverret["body"]);
-
if (isset($data->site->server)) {
$last_contact = datetime_convert();
+ if (isset($data->site->platform)) {
+ $platform = $data->site->platform->PLATFORM_NAME;
+ $version = $data->site->platform->STD_VERSION;
+ $network = NETWORK_DIASPORA;
+ }
+ if (isset($data->site->BlaBlaNet)) {
+ $platform = $data->site->BlaBlaNet->PLATFORM_NAME;
+ $version = $data->site->BlaBlaNet->STD_VERSION;
+ $network = NETWORK_DIASPORA;
+ }
if (isset($data->site->hubzilla)) {
$platform = $data->site->hubzilla->PLATFORM_NAME;
$version = $data->site->hubzilla->RED_VERSION;
}
}
+
// Query statistics.json. Optional package for Diaspora, Friendica and Redmatrix
if (!$failure) {
$serverret = z_fetch_url($server_url."/statistics.json");
}
}
- // Look for poco
- if (!$failure) {
- $serverret = z_fetch_url($server_url."/poco");
- if ($serverret["success"]) {
- $data = json_decode($serverret["body"]);
- if (isset($data->totalResults)) {
- $poco = $server_url."/poco";
- $last_contact = datetime_convert();
- }
- }
+ if ($possible_failure AND !$failure) {
+ $last_failure = datetime_convert();
+ $failure = true;
+ }
+
+ if ($failure) {
+ $last_contact = $orig_last_contact;
+ } else {
+ $last_failure = $orig_last_failure;
+ }
+
+ if (($last_contact <= $last_failure) AND !$failure) {
+ logger("Server ".$server_url." seems to be alive, but last contact wasn't set - could be a bug", LOGGER_DEBUG);
+ } else if (($last_contact >= $last_failure) AND $failure) {
+ logger("Server ".$server_url." seems to be dead, but last failure wasn't set - could be a bug", LOGGER_DEBUG);
}
// Check again if the server exists
$info = strip_tags($info);
$platform = strip_tags($platform);
- if ($servers)
+ if ($servers) {
q("UPDATE `gserver` SET `url` = '%s', `version` = '%s', `site_name` = '%s', `info` = '%s', `register_policy` = %d, `poco` = '%s', `noscrape` = '%s',
`network` = '%s', `platform` = '%s', `last_contact` = '%s', `last_failure` = '%s' WHERE `nurl` = '%s'",
dbesc($server_url),
dbesc($last_failure),
dbesc(normalise_link($server_url))
);
- else
+ } elseif (!$failure)
q("INSERT INTO `gserver` (`url`, `nurl`, `version`, `site_name`, `info`, `register_policy`, `poco`, `noscrape`, `network`, `platform`, `created`, `last_contact`, `last_failure`)
VALUES ('%s', '%s', '%s', '%s', '%s', %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s')",
dbesc($server_url),
}
}
+/**
+ * @brief Fetch server list from remote servers and adds them when they are new.
+ *
+ * @param string $poco URL to the POCO endpoint
+ */
+function poco_fetch_serverlist($poco) {
+ $serverret = z_fetch_url($poco."/@server");
+ if (!$serverret["success"]) {
+ return;
+ }
+ $serverlist = json_decode($serverret['body']);
+
+ if (!is_array($serverlist)) {
+ return;
+ }
+
+ foreach ($serverlist AS $server) {
+ $server_url = str_replace("/index.php", "", $server->url);
+
+ $r = q("SELECT `nurl` FROM `gserver` WHERE `nurl` = '%s'", dbesc(normalise_link($server_url)));
+ if (!dbm::is_result($r)) {
+ logger("Call server check for server ".$server_url, LOGGER_DEBUG);
+ proc_run(PRIORITY_LOW, "include/discover_poco.php", "server", base64_encode($server_url));
+ }
+ }
+}
+
function poco_discover_federation() {
$last = get_config('poco','last_federation_discovery');
if ($serverdata) {
$servers = json_decode($serverdata);
- foreach($servers->pods AS $server)
- poco_check_server("https://".$server->host);
+ foreach ($servers->pods AS $server) {
+ proc_run(PRIORITY_LOW, "include/discover_poco.php", "server", base64_encode("https://".$server->host));
+ }
}
// Currently disabled, since the service isn't available anymore.
continue;
}
+ // Discover new servers out there
+ poco_fetch_serverlist($server["poco"]);
+
// Fetch all users from the other server
$url = $server["poco"]."/?fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,gender,contactType,generation";
q("UPDATE `gserver` SET `last_poco_query` = '%s' WHERE `nurl` = '%s'", dbesc(datetime_convert()), dbesc($server["nurl"]));
}
}
+
+/**
+ * @brief Returns a list of all known servers
+ * @return array List of server urls
+ */
+function poco_serverlist() {
+ $r = q("SELECT `url`, `site_name` AS `displayName`, `network`, `platform`, `version` FROM `gserver`
+ WHERE `network` IN ('%s', '%s', '%s') AND `last_contact` > `last_failure`
+ ORDER BY `last_contact`
+ LIMIT 1000",
+ dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA), dbesc(NETWORK_OSTATUS));
+ if (!dbm::is_result($r)) {
+ return false;
+ }
+ return $r;
+}
?>
projects / friendica.git / commitdiff