Added documentation
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1 changed files with 136 additions and 25 deletions
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@ -2,7 +2,7 @@
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/**
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* @file src/Model/GServer.php
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* @brief This file includes the GServer class to handle with servers
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* This file includes the GServer class to handle with servers
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*/
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namespace Friendica\Model;
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@ -22,11 +22,20 @@ use Friendica\Protocol\Diaspora;
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use Friendica\Network\Probe;
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/**
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* @brief This class handles GServer related functions
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* This class handles GServer related functions
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*/
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class GServer
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{
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public static function check($server_url, $network = '', $force = false)
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/**
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* Checks the state of the given server.
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*
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* @param string $server_url URL of the given server
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* @param string $network Network value that is used, when detection failed
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* @param boolean $force Force an update.
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*
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* @return boolean "true" if server seems vital
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*/
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public static function check(string $server_url, string $network = '', bool $force = false)
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{
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// Unify the server address
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$server_url = trim($server_url, '/');
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@ -73,11 +82,12 @@ class GServer
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* Detect server data (type, protocol, version number, ...)
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* The detected data is then updated or inserted in the gserver table.
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*
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* @param string $url Server url
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* @param string $url URL of the given server
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* @param string $network Network value that is used, when detection failed
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*
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* @return boolean 'true' if server could be detected
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*/
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public static function detect($url, $network = '')
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public static function detect(string $url, string $network = '')
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{
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$serverdata = [];
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@ -203,12 +213,12 @@ class GServer
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}
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/**
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* @brief Fetch relay data from a given server url
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* Fetch relay data from a given server url
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*
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* @param string $server_url address of the server
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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private static function discoverRelay($server_url)
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private static function discoverRelay(string $server_url)
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{
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Logger::info('Discover relay data', ['server' => $server_url]);
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@ -275,7 +285,14 @@ class GServer
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Diaspora::setRelayContact($server_url, $fields);
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}
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private static function fetchStatistics($url)
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/**
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* Fetch server data from '/statistics.json' on the given server
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*
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* @param string $url URL of the given server
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*
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* @return array server data
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*/
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private static function fetchStatistics(string $url)
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{
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$curlResult = Network::curl($url . '/statistics.json');
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if (!$curlResult->isSuccess()) {
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@ -325,13 +342,13 @@ class GServer
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}
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/**
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* @brief Detect server type by using the nodeinfo data
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* Detect server type by using the nodeinfo data
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*
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* @param string $url address of the server
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* @return array Server data
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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private static function fetchNodeinfo($url, $curlResult)
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private static function fetchNodeinfo(string $url, $curlResult)
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{
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$nodeinfo = json_decode($curlResult->getBody(), true);
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@ -374,13 +391,13 @@ class GServer
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}
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/**
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* @brief Parses Nodeinfo 1
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* Parses Nodeinfo 1
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*
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* @param string $nodeinfo_url address of the nodeinfo path
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* @return array Server data
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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private static function parseNodeinfo1($nodeinfo_url)
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private static function parseNodeinfo1(string $nodeinfo_url)
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{
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$curlResult = Network::curl($nodeinfo_url);
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@ -452,13 +469,13 @@ class GServer
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}
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/**
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* @brief Parses Nodeinfo 2
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* Parses Nodeinfo 2
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*
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* @param string $nodeinfo_url address of the nodeinfo path
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* @return array Server data
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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private static function parseNodeinfo2($nodeinfo_url)
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private static function parseNodeinfo2(string $nodeinfo_url)
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{
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$curlResult = Network::curl($nodeinfo_url);
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if (!$curlResult->isSuccess()) {
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@ -528,7 +545,15 @@ class GServer
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return $server;
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}
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private static function fetchSiteinfo($url, $serverdata)
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/**
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* Fetch server information from a "siteinfo.json" file on the given server
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*
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* @param string $url URL of the given server
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* @param array $serverdata array with server data
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*
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* @return array server data
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*/
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private static function fetchSiteinfo(string $url, array $serverdata)
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{
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$curlResult = Network::curl($url . '/siteinfo.json');
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if (!$curlResult->isSuccess()) {
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@ -585,7 +610,14 @@ class GServer
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return $serverdata;
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}
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private static function validHostMeta($url)
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/**
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* Checks if the server contains a valid host meta file
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*
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* @param string $url URL of the given server
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*
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* @return boolean "true" if the server seems to be vital
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*/
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private static function validHostMeta(string $url)
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{
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$xrd_timeout = Config::get('system', 'xrd_timeout');
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$curlResult = Network::curl($url . '/.well-known/host-meta', false, ['timeout' => $xrd_timeout]);
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@ -618,7 +650,15 @@ class GServer
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return $valid;
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}
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private static function detectNetworkViaContacts($url, $serverdata)
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/**
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* Detect the network of the given server via their known contacts
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*
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* @param string $url URL of the given server
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* @param array $serverdata array with server data
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*
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* @return array server data
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*/
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private static function detectNetworkViaContacts(string $url, array $serverdata)
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{
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$contacts = '';
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$fields = ['nurl', 'url'];
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@ -658,7 +698,15 @@ class GServer
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return $serverdata;
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}
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private static function checkPoCo($url, $serverdata)
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/**
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* Checks if the given server does have a "poco" endpoint
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*
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* @param string $url URL of the given server
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* @param array $serverdata array with server data
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*
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* @return array server data
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*/
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private static function checkPoCo(string $url, array $serverdata)
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{
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$curlResult = Network::curl($url. '/poco');
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if (!$curlResult->isSuccess()) {
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@ -681,7 +729,15 @@ class GServer
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return $serverdata;
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}
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private static function detectNextcloud($url, $serverdata)
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/**
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* Detects the version number of a given server when it was a NextCloud installation
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*
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* @param string $url URL of the given server
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* @param array $serverdata array with server data
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*
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* @return array server data
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*/
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private static function detectNextcloud(string $url, array $serverdata)
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{
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$curlResult = Network::curl($url . '/status.php');
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@ -703,7 +759,15 @@ class GServer
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return $serverdata;
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}
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private static function detectMastodonAlikes($url, $serverdata)
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/**
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* Detects data from a given server url if it was a mastodon alike system
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*
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* @param string $url URL of the given server
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* @param array $serverdata array with server data
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*
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* @return array server data
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*/
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private static function detectMastodonAlikes(string $url, array $serverdata)
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{
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$curlResult = Network::curl($url . '/api/v1/instance');
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@ -747,7 +811,15 @@ class GServer
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return $serverdata;
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}
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private static function detectHubzilla($url, $serverdata)
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/**
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* Detects data from typical Hubzilla endpoints
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*
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* @param string $url URL of the given server
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* @param array $serverdata array with server data
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*
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* @return array server data
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*/
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private static function detectHubzilla(string $url, array $serverdata)
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{
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$curlResult = Network::curl($url . '/api/statusnet/config.json');
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if (!$curlResult->isSuccess() || ($curlResult->getBody() == '')) {
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@ -813,6 +885,13 @@ class GServer
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return $serverdata;
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}
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/**
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* Converts input value to a boolean value
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*
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* @param string|integer $val
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*
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* @return boolean
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*/
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private static function toBoolean($val)
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{
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if (($val == 'true') || ($val == 1)) {
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@ -824,7 +903,15 @@ class GServer
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return $val;
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}
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private static function detectGNUSocial($url, $serverdata)
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/**
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* Detect if the URL belongs to a GNU Social server
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*
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* @param string $url URL of the given server
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* @param array $serverdata array with server data
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*
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* @return array server data
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*/
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private static function detectGNUSocial(string $url, array $serverdata)
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{
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$curlResult = Network::curl($url . '/api/statusnet/version.json');
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@ -852,7 +939,15 @@ class GServer
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return $serverdata;
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}
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private static function detectFriendica($url, $serverdata)
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/**
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* Detect if the URL belongs to a Friendica server
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*
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* @param string $url URL of the given server
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* @param array $serverdata array with server data
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*
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* @return array server data
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*/
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private static function detectFriendica(string $url, array $serverdata)
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{
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$curlResult = Network::curl($url . '/friendica/json');
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if (!$curlResult->isSuccess()) {
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@ -908,7 +1003,15 @@ class GServer
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return $serverdata;
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}
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private static function analyseRootBody($curlResult, $serverdata)
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/**
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* Analyses the landing page of a given server for hints about type and system of that server
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*
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* @param object $curlResult result of curl execution
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* @param array $serverdata array with server data
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*
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* @return array server data
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*/
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private static function analyseRootBody($curlResult, array $serverdata)
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{
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$doc = new DOMDocument();
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@$doc->loadHTML($curlResult->getBody());
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@ -1017,7 +1120,15 @@ class GServer
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return $serverdata;
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}
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private static function analyseRootHeader($curlResult, $serverdata)
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/**
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* Analyses the header data of a given server for hints about type and system of that server
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*
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* @param object $curlResult result of curl execution
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* @param array $serverdata array with server data
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*
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* @return array server data
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*/
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private static function analyseRootHeader($curlResult, array $serverdata)
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{
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if ($curlResult->getHeader('server') == 'Mastodon') {
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$serverdata['platform'] = 'mastodon';
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