Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @file include/socgraph.php
*
* @todo Move GNU Social URL schemata (http://server.tld/user/number) to http://server.tld/username
* @todo Fetch profile data from profile page for Redmatrix users
* @todo Detect if it is a forum
*/
require_once('include/datetime.php');
require_once("include/Scrape.php");
require_once("include/network.php");
require_once("include/html2bbcode.php");
require_once("include/Contact.php");
require_once("include/Photo.php");
/*
* poco_load
*
* Given a contact-id (minimum), load the PortableContacts friend list for that contact,
* and add the entries to the gcontact (Global Contact) table, or update existing entries
* if anything (name or photo) has changed.
* We use normalised urls for comparison which ignore http vs https and www.domain vs domain
*
* Once the global contact is stored add (if necessary) the contact linkage which associates
* the given uid, cid to the global contact entry. There can be many uid/cid combinations
* pointing to the same global contact id.
*
*/
function poco_load($cid,$uid = 0,$zcid = 0,$url = null) {
$a = get_app();
if($cid) {
if((! $url) || (! $uid)) {
$r = q("select `poco`, `uid` from `contact` where `id` = %d limit 1",
intval($cid)
);
if (dbm::is_result($r)) {
$url = $r[0]['poco'];
$uid = $r[0]['uid'];
}
}
if(! $uid)
return;
}
if(! $url)
return;
$url = $url . (($uid) ? '/@me/@all?fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,gender,contactType,generation' : '?fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,gender,contactType,generation') ;
logger('poco_load: ' . $url, LOGGER_DEBUG);
$s = fetch_url($url);
logger('poco_load: returns ' . $s, LOGGER_DATA);
logger('poco_load: return code: ' . $a->get_curl_code(), LOGGER_DEBUG);
if(($a->get_curl_code() > 299) || (! $s))
return;
$j = json_decode($s);
logger('poco_load: json: ' . print_r($j,true),LOGGER_DATA);
if(! isset($j->entry))
return;
$total = 0;
foreach($j->entry as $entry) {
$total ++;
$profile_url = '';
$profile_photo = '';
$connect_url = '';
$name = '';
$network = '';
$updated = '0000-00-00 00:00:00';
$location = '';
$about = '';
$keywords = '';
$gender = '';
$contact_type = -1;
$generation = 0;
$name = $entry->displayName;
if (isset($entry->urls)) {
foreach ($entry->urls as $url) {
if ($url->type == 'profile') {
$profile_url = $url->value;
continue;
}
if ($url->type == 'webfinger') {
$connect_url = str_replace('acct:' , '', $url->value);
continue;
}
}
}
if (isset($entry->photos)) {
foreach ($entry->photos as $photo) {
if ($photo->type == 'profile') {
$profile_photo = $photo->value;
continue;
}
}
}
if (isset($entry->updated)) {
$updated = date("Y-m-d H:i:s", strtotime($entry->updated));
}
if (isset($entry->network)) {
$network = $entry->network;
}
if (isset($entry->currentLocation)) {
$location = $entry->currentLocation;
}
if (isset($entry->aboutMe)) {
$about = html2bbcode($entry->aboutMe);
}
if (isset($entry->gender)) {
$gender = $entry->gender;
}
if (isset($entry->generation) AND ($entry->generation > 0)) {
$generation = ++$entry->generation;
}
if (isset($entry->tags)) {
foreach($entry->tags as $tag) {
$keywords = implode(", ", $tag);
}
}
if (isset($entry->contactType) AND ($entry->contactType >= 0))
$contact_type = $entry->contactType;
// If you query a Friendica server for its profiles, the network has to be Friendica
/// TODO It could also be a Redmatrix server
//if ($uid == 0)
// $network = NETWORK_DFRN;
poco_check($profile_url, $name, $network, $profile_photo, $about, $location, $gender, $keywords, $connect_url, $updated, $generation, $cid, $uid, $zcid);
$gcontact = array("url" => $profile_url, "contact-type" => $contact_type, "generation" => $generation);
update_gcontact($gcontact);
// Update the Friendica contacts. Diaspora is doing it via a message. (See include/diaspora.php)
// Deactivated because we now update Friendica contacts in dfrn.php
//if (($location != "") OR ($about != "") OR ($keywords != "") OR ($gender != ""))
// q("UPDATE `contact` SET `location` = '%s', `about` = '%s', `keywords` = '%s', `gender` = '%s'
// WHERE `nurl` = '%s' AND NOT `self` AND `network` = '%s'",
// dbesc($location),
// dbesc($about),
// dbesc($keywords),
// dbesc($gender),
// dbesc(normalise_link($profile_url)),
// dbesc(NETWORK_DFRN));
}
logger("poco_load: loaded $total entries",LOGGER_DEBUG);
q("DELETE FROM `glink` WHERE `cid` = %d AND `uid` = %d AND `zcid` = %d AND `updated` < UTC_TIMESTAMP - INTERVAL 2 DAY",
intval($cid),
intval($uid),
intval($zcid)
);
}
function poco_check($profile_url, $name, $network, $profile_photo, $about, $location, $gender, $keywords, $connect_url, $updated, $generation, $cid = 0, $uid = 0, $zcid = 0) {
// Generation:
// 0: No definition
// 1: Profiles on this server
// 2: Contacts of profiles on this server
// 3: Contacts of contacts of profiles on this server
// 4: ...
$gcid = "";
if ($profile_url == "")
return $gcid;
$urlparts = parse_url($profile_url);
if (!isset($urlparts["scheme"]))
return $gcid;
if (in_array($urlparts["host"], array("www.facebook.com", "facebook.com", "twitter.com",
"identi.ca", "alpha.app.net")))
return $gcid;
// Don't store the statusnet connector as network
// We can't simply set this to NETWORK_OSTATUS since the connector could have fetched posts from friendica as well
if ($network == NETWORK_STATUSNET)
$network = "";
// Assure that there are no parameter fragments in the profile url
if (in_array($network, array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, "")))
$profile_url = clean_contact_url($profile_url);
$alternate = poco_alternate_ostatus_url($profile_url);
$orig_updated = $updated;
// The global contacts should contain the original picture, not the cached one
if (($generation != 1) AND stristr(normalise_link($profile_photo), normalise_link(App::get_baseurl()."/photo/"))) {
$profile_photo = "";
}
$r = q("SELECT `network` FROM `contact` WHERE `nurl` = '%s' AND `network` != '' AND `network` != '%s' LIMIT 1",
dbesc(normalise_link($profile_url)), dbesc(NETWORK_STATUSNET)
);
if (dbm::is_result($r)) {
$network = $r[0]["network"];
}
if (($network == "") OR ($network == NETWORK_OSTATUS)) {
$r = q("SELECT `network`, `url` FROM `contact` WHERE `alias` IN ('%s', '%s') AND `network` != '' AND `network` != '%s' LIMIT 1",
dbesc($profile_url), dbesc(normalise_link($profile_url)), dbesc(NETWORK_STATUSNET)
);
if (dbm::is_result($r)) {
$network = $r[0]["network"];
//$profile_url = $r[0]["url"];
}
}
$x = q("SELECT * FROM `gcontact` WHERE `nurl` = '%s' LIMIT 1",
dbesc(normalise_link($profile_url))
);
if (count($x)) {
if (($network == "") AND ($x[0]["network"] != NETWORK_STATUSNET))
$network = $x[0]["network"];
if ($updated == "0000-00-00 00:00:00")
$updated = $x[0]["updated"];
$created = $x[0]["created"];
$server_url = $x[0]["server_url"];
$nick = $x[0]["nick"];
$addr = $x[0]["addr"];
$alias = $x[0]["alias"];
$notify = $x[0]["notify"];
} else {
$created = "0000-00-00 00:00:00";
$server_url = "";
$urlparts = parse_url($profile_url);
$nick = end(explode("/", $urlparts["path"]));
$addr = "";
$alias = "";
$notify = "";
}
if ((($network == "") OR ($name == "") OR ($addr == "") OR ($profile_photo == "") OR ($server_url == "") OR $alternate)
AND poco_reachable($profile_url, $server_url, $network, false)) {
$data = probe_url($profile_url);
$orig_profile = $profile_url;
$network = $data["network"];
$name = $data["name"];
$nick = $data["nick"];
$addr = $data["addr"];
$alias = $data["alias"];
$notify = $data["notify"];
$profile_url = $data["url"];
$profile_photo = $data["photo"];
$server_url = $data["baseurl"];
if ($alternate AND ($network == NETWORK_OSTATUS)) {
// Delete the old entry - if it exists
$r = q("SELECT `id` FROM `gcontact` WHERE `nurl` = '%s'", dbesc(normalise_link($orig_profile)));
if ($r) {
q("DELETE FROM `gcontact` WHERE `nurl` = '%s'", dbesc(normalise_link($orig_profile)));
q("DELETE FROM `glink` WHERE `gcid` = %d", intval($r[0]["id"]));
}
// possibly create a new entry
poco_check($profile_url, $name, $network, $profile_photo, $about, $location, $gender, $keywords, $connect_url, $updated, $generation, $cid, $uid, $zcid);
}
}
if ($alternate AND ($network == NETWORK_OSTATUS))
return $gcid;
if (count($x) AND ($x[0]["network"] == "") AND ($network != "")) {
q("UPDATE `gcontact` SET `network` = '%s' WHERE `nurl` = '%s'",
dbesc($network),
dbesc(normalise_link($profile_url))
);
}
if (($name == "") OR ($profile_photo == ""))
return $gcid;
if (!in_array($network, array(NETWORK_DFRN, NETWORK_OSTATUS, NETWORK_DIASPORA)))
return $gcid;
logger("profile-check generation: ".$generation." Network: ".$network." URL: ".$profile_url." name: ".$name." avatar: ".$profile_photo, LOGGER_DEBUG);
poco_check_server($server_url, $network);
$gcontact = array("url" => $profile_url,
"addr" => $addr,
"alias" => $alias,
"name" => $name,
"network" => $network,
"photo" => $profile_photo,
"about" => $about,
"location" => $location,
"gender" => $gender,
"keywords" => $keywords,
"server_url" => $server_url,
"connect" => $connect_url,
"notify" => $notify,
"updated" => $updated,
"generation" => $generation);
$gcid = update_gcontact($gcontact);
if(!$gcid)
return $gcid;
$r = q("SELECT * FROM `glink` WHERE `cid` = %d AND `uid` = %d AND `gcid` = %d AND `zcid` = %d LIMIT 1",
intval($cid),
intval($uid),
intval($gcid),
intval($zcid)
);
if (! dbm::is_result($r)) {
q("INSERT INTO `glink` (`cid`,`uid`,`gcid`,`zcid`, `updated`) VALUES (%d,%d,%d,%d, '%s') ",
intval($cid),
intval($uid),
intval($gcid),
intval($zcid),
dbesc(datetime_convert())
);
} else {
q("UPDATE `glink` SET `updated` = '%s' WHERE `cid` = %d AND `uid` = %d AND `gcid` = %d AND `zcid` = %d",
dbesc(datetime_convert()),
intval($cid),
intval($uid),
intval($gcid),
intval($zcid)
);
}
return $gcid;
}
function poco_reachable($profile, $server = "", $network = "", $force = false) {
if ($server == "")
$server = poco_detect_server($profile);
if ($server == "")
return true;
return poco_check_server($server, $network, $force);
}
function poco_detect_server($profile) {
// Try to detect the server path based upon some known standard paths
$server_url = "";
if ($server_url == "") {
$friendica = preg_replace("=(https?://)(.*)/profile/(.*)=ism", "$1$2", $profile);
if ($friendica != $profile) {
$server_url = $friendica;
$network = NETWORK_DFRN;
}
}
if ($server_url == "") {
$diaspora = preg_replace("=(https?://)(.*)/u/(.*)=ism", "$1$2", $profile);
if ($diaspora != $profile) {
$server_url = $diaspora;
$network = NETWORK_DIASPORA;
}
}
if ($server_url == "") {
$red = preg_replace("=(https?://)(.*)/channel/(.*)=ism", "$1$2", $profile);
if ($red != $profile) {
$server_url = $red;
$network = NETWORK_DIASPORA;
}
}
// Mastodon
if ($server_url == "") {
$red = preg_replace("=(https?://)(.*)/users/(.*)=ism", "$1$2", $profile);
if ($red != $profile) {
$server_url = $red;
$network = NETWORK_OSTATUS;
}
}
return $server_url;
}
function poco_alternate_ostatus_url($url) {
return(preg_match("=https?://.+/user/\d+=ism", $url, $matches));
}
function poco_last_updated($profile, $force = false) {
$gcontacts = q("SELECT * FROM `gcontact` WHERE `nurl` = '%s'",
dbesc(normalise_link($profile)));
if ($gcontacts[0]["created"] == "0000-00-00 00:00:00")
q("UPDATE `gcontact` SET `created` = '%s' WHERE `nurl` = '%s'",
dbesc(datetime_convert()), dbesc(normalise_link($profile)));
if ($gcontacts[0]["server_url"] != "")
$server_url = $gcontacts[0]["server_url"];
else
$server_url = poco_detect_server($profile);
if (!in_array($gcontacts[0]["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_FEED, NETWORK_OSTATUS, ""))) {
logger("Profile ".$profile.": Network type ".$gcontacts[0]["network"]." can't be checked", LOGGER_DEBUG);
return false;
}
if ($server_url != "") {
if (!poco_check_server($server_url, $gcontacts[0]["network"], $force)) {
if ($force)
q("UPDATE `gcontact` SET `last_failure` = '%s' WHERE `nurl` = '%s'",
dbesc(datetime_convert()), dbesc(normalise_link($profile)));
logger("Profile ".$profile.": Server ".$server_url." wasn't reachable.", LOGGER_DEBUG);
return false;
}
q("UPDATE `gcontact` SET `server_url` = '%s' WHERE `nurl` = '%s'",
dbesc($server_url), dbesc(normalise_link($profile)));
}
if (in_array($gcontacts[0]["network"], array("", NETWORK_FEED))) {
$server = q("SELECT `network` FROM `gserver` WHERE `nurl` = '%s' AND `network` != ''",
dbesc(normalise_link($server_url)));
if ($server)
q("UPDATE `gcontact` SET `network` = '%s' WHERE `nurl` = '%s'",
dbesc($server[0]["network"]), dbesc(normalise_link($profile)));
else
return false;
}
// noscrape is really fast so we don't cache the call.
if (($gcontacts[0]["server_url"] != "") AND ($gcontacts[0]["nick"] != "")) {
// Use noscrape if possible
$server = q("SELECT `noscrape`, `network` FROM `gserver` WHERE `nurl` = '%s' AND `noscrape` != ''", dbesc(normalise_link($gcontacts[0]["server_url"])));
if ($server) {
$noscraperet = z_fetch_url($server[0]["noscrape"]."/".$gcontacts[0]["nick"]);
if ($noscraperet["success"] AND ($noscraperet["body"] != "")) {
$noscrape = json_decode($noscraperet["body"], true);
if (is_array($noscrape)) {
$contact = array("url" => $profile,
"network" => $server[0]["network"],
"generation" => $gcontacts[0]["generation"]);
if (isset($noscrape["fn"]))
$contact["name"] = $noscrape["fn"];
if (isset($noscrape["comm"]))
$contact["community"] = $noscrape["comm"];
if (isset($noscrape["tags"])) {
$keywords = implode(" ", $noscrape["tags"]);
if ($keywords != "")
$contact["keywords"] = $keywords;
}
$location = formatted_location($noscrape);
if ($location)
$contact["location"] = $location;
if (isset($noscrape["dfrn-notify"]))
$contact["notify"] = $noscrape["dfrn-notify"];
// Remove all fields that are not present in the gcontact table
unset($noscrape["fn"]);
unset($noscrape["key"]);
unset($noscrape["homepage"]);
unset($noscrape["comm"]);
unset($noscrape["tags"]);
unset($noscrape["locality"]);
unset($noscrape["region"]);
unset($noscrape["country-name"]);
unset($noscrape["contacts"]);
unset($noscrape["dfrn-request"]);
unset($noscrape["dfrn-confirm"]);
unset($noscrape["dfrn-notify"]);
unset($noscrape["dfrn-poll"]);
// Set the date of the last contact
/// @todo By now the function "update_gcontact" doesn't work with this field
//$contact["last_contact"] = datetime_convert();
$contact = array_merge($contact, $noscrape);
update_gcontact($contact);
if (trim($noscrape["updated"]) != "") {
q("UPDATE `gcontact` SET `last_contact` = '%s' WHERE `nurl` = '%s'",
dbesc(datetime_convert()), dbesc(normalise_link($profile)));
logger("Profile ".$profile." was last updated at ".$noscrape["updated"]." (noscrape)", LOGGER_DEBUG);
return $noscrape["updated"];
}
}
}
}
}
// If we only can poll the feed, then we only do this once a while
if (!$force AND !poco_do_update($gcontacts[0]["created"], $gcontacts[0]["updated"], $gcontacts[0]["last_failure"], $gcontacts[0]["last_contact"])) {
logger("Profile ".$profile." was last updated at ".$gcontacts[0]["updated"]." (cached)", LOGGER_DEBUG);
return $gcontacts[0]["updated"];
}
$data = probe_url($profile);
// Is the profile link the alternate OStatus link notation? (http://domain.tld/user/4711)
// Then check the other link and delete this one
if (($data["network"] == NETWORK_OSTATUS) AND poco_alternate_ostatus_url($profile) AND
(normalise_link($profile) == normalise_link($data["alias"])) AND
(normalise_link($profile) != normalise_link($data["url"]))) {
// Delete the old entry
q("DELETE FROM `gcontact` WHERE `nurl` = '%s'", dbesc(normalise_link($profile)));
q("DELETE FROM `glink` WHERE `gcid` = %d", intval($gcontacts[0]["id"]));
poco_check($data["url"], $data["name"], $data["network"], $data["photo"], $gcontacts[0]["about"], $gcontacts[0]["location"],
$gcontacts[0]["gender"], $gcontacts[0]["keywords"], $data["addr"], $gcontacts[0]["updated"], $gcontacts[0]["generation"]);
poco_last_updated($data["url"], $force);
logger("Profile ".$profile." was deleted", LOGGER_DEBUG);
return false;
}
if (($data["poll"] == "") OR (in_array($data["network"], array(NETWORK_FEED, NETWORK_PHANTOM)))) {
q("UPDATE `gcontact` SET `last_failure` = '%s' WHERE `nurl` = '%s'",
dbesc(datetime_convert()), dbesc(normalise_link($profile)));
logger("Profile ".$profile." wasn't reachable (profile)", LOGGER_DEBUG);
return false;
}
$contact = array("generation" => $gcontacts[0]["generation"]);
$contact = array_merge($contact, $data);
$contact["server_url"] = $data["baseurl"];
unset($contact["batch"]);
unset($contact["poll"]);
unset($contact["request"]);
unset($contact["confirm"]);
unset($contact["poco"]);
unset($contact["priority"]);
unset($contact["pubkey"]);
unset($contact["baseurl"]);
update_gcontact($contact);
$feedret = z_fetch_url($data["poll"]);
if (!$feedret["success"]) {
q("UPDATE `gcontact` SET `last_failure` = '%s' WHERE `nurl` = '%s'",
dbesc(datetime_convert()), dbesc(normalise_link($profile)));
logger("Profile ".$profile." wasn't reachable (no feed)", LOGGER_DEBUG);
return false;
}
$doc = new DOMDocument();
@$doc->loadXML($feedret["body"]);
$xpath = new DomXPath($doc);
$xpath->registerNamespace('atom', "http://www.w3.org/2005/Atom");
$entries = $xpath->query('/atom:feed/atom:entry');
$last_updated = "";
foreach ($entries AS $entry) {
$published = $xpath->query('atom:published/text()', $entry)->item(0)->nodeValue;
$updated = $xpath->query('atom:updated/text()', $entry)->item(0)->nodeValue;
if ($last_updated < $published)
$last_updated = $published;
if ($last_updated < $updated)
$last_updated = $updated;
}
// Maybe there aren't any entries. Then check if it is a valid feed
if ($last_updated == "")
if ($xpath->query('/atom:feed')->length > 0)
$last_updated = "0000-00-00 00:00:00";
q("UPDATE `gcontact` SET `updated` = '%s', `last_contact` = '%s' WHERE `nurl` = '%s'",
dbesc(dbm::date($last_updated)), dbesc(dbm::date()), dbesc(normalise_link($profile)));
if (($gcontacts[0]["generation"] == 0))
q("UPDATE `gcontact` SET `generation` = 9 WHERE `nurl` = '%s'",
dbesc(normalise_link($profile)));
logger("Profile ".$profile." was last updated at ".$last_updated, LOGGER_DEBUG);
return($last_updated);
}
function poco_do_update($created, $updated, $last_failure, $last_contact) {
$now = strtotime(datetime_convert());
if ($updated > $last_contact)
$contact_time = strtotime($updated);
else
$contact_time = strtotime($last_contact);
$failure_time = strtotime($last_failure);
$created_time = strtotime($created);
// If there is no "created" time then use the current time
if ($created_time <= 0)
$created_time = $now;
// If the last contact was less than 24 hours then don't update
if (($now - $contact_time) < (60 * 60 * 24))
return false;
// If the last failure was less than 24 hours then don't update
if (($now - $failure_time) < (60 * 60 * 24))
return false;
// If the last contact was less than a week ago and the last failure is older than a week then don't update
//if ((($now - $contact_time) < (60 * 60 * 24 * 7)) AND ($contact_time > $failure_time))
// return false;
// If the last contact time was more than a week ago and the contact was created more than a week ago, then only try once a week
if ((($now - $contact_time) > (60 * 60 * 24 * 7)) AND (($now - $created_time) > (60 * 60 * 24 * 7)) AND (($now - $failure_time) < (60 * 60 * 24 * 7)))
return false;
// If the last contact time was more than a month ago and the contact was created more than a month ago, then only try once a month
if ((($now - $contact_time) > (60 * 60 * 24 * 30)) AND (($now - $created_time) > (60 * 60 * 24 * 30)) AND (($now - $failure_time) < (60 * 60 * 24 * 30)))
return false;
return true;
}
function poco_to_boolean($val) {
if (($val == "true") OR ($val == 1))
return(true);
if (($val == "false") OR ($val == 0))
return(false);
return ($val);
}
function poco_detect_friendica_server($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) {
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
$server_url = trim($server_url, "/");
$server_url = str_replace("/index.php", "", $server_url);
if ($server_url == "")
return false;
$servers = q("SELECT * FROM `gserver` WHERE `nurl` = '%s'", dbesc(normalise_link($server_url)));
if ($servers) {
if ($servers[0]["created"] == "0000-00-00 00:00:00")
q("UPDATE `gserver` SET `created` = '%s' WHERE `nurl` = '%s'",
dbesc(datetime_convert()), dbesc(normalise_link($server_url)));
$poco = $servers[0]["poco"];
$noscrape = $servers[0]["noscrape"];
if ($network == "")
$network = $servers[0]["network"];
$last_contact = $servers[0]["last_contact"];
$last_failure = $servers[0]["last_failure"];
$version = $servers[0]["version"];
$platform = $servers[0]["platform"];
$site_name = $servers[0]["site_name"];
$info = $servers[0]["info"];
$register_policy = $servers[0]["register_policy"];
if (!$force AND !poco_do_update($servers[0]["created"], "", $last_failure, $last_contact)) {
logger("Use cached data for server ".$server_url, LOGGER_DEBUG);
return ($last_contact >= $last_failure);
}
} else {
$poco = "";
$noscrape = "";
$version = "";
$platform = "";
$site_name = "";
$info = "";
$register_policy = -1;
$last_contact = "0000-00-00 00:00:00";
$last_failure = "0000-00-00 00:00:00";
}
logger("Server ".$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.
$server_url = str_replace("http://", "https://", $server_url);
$serverret = z_fetch_url($server_url."/.well-known/host-meta");
// 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");
$xmlobj = @simplexml_load_string($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") {
$last_failure = datetime_convert();
$failure = true;
}
$possible_failure = true;
} elseif ($network == NETWORK_DIASPORA)
$last_contact = datetime_convert();
if (!$failure) {
// Test for Diaspora
$serverret = z_fetch_url($server_url);
if (!$serverret["success"] OR ($serverret["body"] == "")) {
$last_failure = datetime_convert();
$failure = true;
} else {
$lines = explode("\n",$serverret["header"]);
if(count($lines)) {
foreach($lines as $line) {
$line = trim($line);
if(stristr($line,'X-Diaspora-Version:')) {
$platform = "Diaspora";
$version = trim(str_replace("X-Diaspora-Version:", "", $line));
$version = trim(str_replace("x-diaspora-version:", "", $version));
$network = NETWORK_DIASPORA;
$versionparts = explode("-", $version);
$version = $versionparts[0];
$last_contact = datetime_convert();
}
if(stristr($line,'Server: Mastodon')) {
$platform = "Mastodon";
$network = NETWORK_OSTATUS;
// Mastodon doesn't reveal version numbers
$version = "";
$last_contact = datetime_convert();
}
}
}
$friendica_server = poco_detect_friendica_server($serverret["body"]);
if ($friendica_server) {
$platform = $friendica_server['platform'];
$network = $friendica_server['network'];
$version = $friendica_server['version'];
$site_name = $friendica_server['site_name'];
$last_contact = datetime_convert();
}
}
}
if (!$failure) {
// 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
$serverret = z_fetch_url($server_url."/api/statusnet/version.json");
if ($serverret["success"] AND ($serverret["body"] != '{"error":"not implemented"}') AND
($serverret["body"] != '') AND (strlen($serverret["body"]) < 30)) {
$platform = "StatusNet";
$version = trim($serverret["body"], '"');
$network = NETWORK_OSTATUS;
$last_contact = datetime_convert();
}
// Test for GNU Social
$serverret = z_fetch_url($server_url."/api/gnusocial/version.json");
if ($serverret["success"] AND ($serverret["body"] != '{"error":"not implemented"}') AND
($serverret["body"] != '') AND (strlen($serverret["body"]) < 30)) {
$platform = "GNU Social";
$version = trim($serverret["body"], '"');
$network = NETWORK_OSTATUS;
$last_contact = datetime_convert();
}
$serverret = z_fetch_url($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->hubzilla)) {
$platform = $data->site->hubzilla->PLATFORM_NAME;
$version = $data->site->hubzilla->RED_VERSION;
$network = NETWORK_DIASPORA;
}
if (isset($data->site->redmatrix)) {
if (isset($data->site->redmatrix->PLATFORM_NAME))
$platform = $data->site->redmatrix->PLATFORM_NAME;
elseif (isset($data->site->redmatrix->RED_PLATFORM))
$platform = $data->site->redmatrix->RED_PLATFORM;
$version = $data->site->redmatrix->RED_VERSION;
$network = NETWORK_DIASPORA;
}
if (isset($data->site->friendica)) {
$platform = $data->site->friendica->FRIENDICA_PLATFORM;
$version = $data->site->friendica->FRIENDICA_VERSION;
$network = NETWORK_DFRN;
}
$site_name = $data->site->name;
$data->site->closed = poco_to_boolean($data->site->closed);
$data->site->private = poco_to_boolean($data->site->private);
$data->site->inviteonly = poco_to_boolean($data->site->inviteonly);
if (!$data->site->closed AND !$data->site->private and $data->site->inviteonly)
$register_policy = REGISTER_APPROVE;
elseif (!$data->site->closed AND !$data->site->private)
$register_policy = REGISTER_OPEN;
else
$register_policy = REGISTER_CLOSED;
}
}
}
// Query statistics.json. Optional package for Diaspora, Friendica and Redmatrix
if (!$failure) {
$serverret = z_fetch_url($server_url."/statistics.json");
if ($serverret["success"]) {
$data = json_decode($serverret["body"]);
if ($version == "")
$version = $data->version;
$site_name = $data->name;
if (isset($data->network) AND ($platform == ""))
$platform = $data->network;
if ($platform == "Diaspora")
$network = NETWORK_DIASPORA;
if ($data->registrations_open)
$register_policy = REGISTER_OPEN;
else
$register_policy = REGISTER_CLOSED;
if (isset($data->version))
$last_contact = datetime_convert();
}
}
// Check for noscrape
// Friendica servers could be detected as OStatus servers
if (!$failure AND in_array($network, array(NETWORK_DFRN, NETWORK_OSTATUS))) {
$serverret = z_fetch_url($server_url."/friendica/json");
if (!$serverret["success"])
$serverret = z_fetch_url($server_url."/friendika/json");
if ($serverret["success"]) {
$data = json_decode($serverret["body"]);
if (isset($data->version)) {
$last_contact = datetime_convert();
$network = NETWORK_DFRN;
$noscrape = $data->no_scrape_url;
$version = $data->version;
$site_name = $data->site_name;
$info = $data->info;
$register_policy_str = $data->register_policy;
$platform = $data->platform;
switch ($register_policy_str) {
case "REGISTER_CLOSED":
$register_policy = REGISTER_CLOSED;
break;
case "REGISTER_APPROVE":
$register_policy = REGISTER_APPROVE;
break;
case "REGISTER_OPEN":
$register_policy = REGISTER_OPEN;
break;
}
}
}
}
// Look for poco
if (!$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
$servers = q("SELECT `nurl` FROM `gserver` WHERE `nurl` = '%s'", dbesc(normalise_link($server_url)));
$version = strip_tags($version);
$site_name = strip_tags($site_name);
$info = strip_tags($info);
$platform = strip_tags($platform);
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($version),
dbesc($site_name),
dbesc($info),
intval($register_policy),
dbesc($poco),
dbesc($noscrape),
dbesc($network),
dbesc($platform),
dbesc($last_contact),
dbesc($last_failure),
dbesc(normalise_link($server_url))
);
else
q("INSERT INTO `gserver` (`url`, `nurl`, `version`, `site_name`, `info`, `register_policy`, `poco`, `noscrape`, `network`, `platform`, `created`, `last_contact`, `last_failure`)
VALUES ('%s', '%s', '%s', '%s', '%s', %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s')",
dbesc($server_url),
dbesc(normalise_link($server_url)),
dbesc($version),
dbesc($site_name),
dbesc($info),
intval($register_policy),
dbesc($poco),
dbesc($noscrape),
dbesc($network),
dbesc($platform),
dbesc(datetime_convert()),
dbesc($last_contact),
dbesc($last_failure),
dbesc(datetime_convert())
);
logger("End discovery for server ".$server_url, LOGGER_DEBUG);
return !$failure;
}
function count_common_friends($uid,$cid) {
$r = q("SELECT count(*) as `total`
FROM `glink` INNER JOIN `gcontact` on `glink`.`gcid` = `gcontact`.`id`
WHERE `glink`.`cid` = %d AND `glink`.`uid` = %d AND
((`gcontact`.`last_contact` >= `gcontact`.`last_failure`) OR (`gcontact`.`updated` >= `gcontact`.`last_failure`))
AND `gcontact`.`nurl` IN (select nurl from contact where uid = %d and self = 0 and blocked = 0 and hidden = 0 and id != %d ) ",
intval($cid),
intval($uid),
intval($uid),
intval($cid)
);
// logger("count_common_friends: $uid $cid {$r[0]['total']}");
if (dbm::is_result($r))
return $r[0]['total'];
return 0;
}
function common_friends($uid,$cid,$start = 0,$limit=9999,$shuffle = false) {
if($shuffle)
$sql_extra = " order by rand() ";
else
$sql_extra = " order by `gcontact`.`name` asc ";
$r = q("SELECT `gcontact`.*, `contact`.`id` AS `cid`
FROM `glink`
INNER JOIN `gcontact` ON `glink`.`gcid` = `gcontact`.`id`
INNER JOIN `contact` ON `gcontact`.`nurl` = `contact`.`nurl`
WHERE `glink`.`cid` = %d and `glink`.`uid` = %d
AND `contact`.`uid` = %d AND `contact`.`self` = 0 AND `contact`.`blocked` = 0
AND `contact`.`hidden` = 0 AND `contact`.`id` != %d
AND ((`gcontact`.`last_contact` >= `gcontact`.`last_failure`) OR (`gcontact`.`updated` >= `gcontact`.`last_failure`))
$sql_extra LIMIT %d, %d",
intval($cid),
intval($uid),
intval($uid),
intval($cid),
intval($start),
intval($limit)
);
return $r;
}
function count_common_friends_zcid($uid,$zcid) {
$r = q("SELECT count(*) as `total`
FROM `glink` INNER JOIN `gcontact` on `glink`.`gcid` = `gcontact`.`id`
where `glink`.`zcid` = %d
and `gcontact`.`nurl` in (select nurl from contact where uid = %d and self = 0 and blocked = 0 and hidden = 0 ) ",
intval($zcid),
intval($uid)
);
if (dbm::is_result($r))
return $r[0]['total'];
return 0;
}
function common_friends_zcid($uid,$zcid,$start = 0, $limit = 9999,$shuffle = false) {
if($shuffle)
$sql_extra = " order by rand() ";
else
$sql_extra = " order by `gcontact`.`name` asc ";
$r = q("SELECT `gcontact`.*
FROM `glink` INNER JOIN `gcontact` on `glink`.`gcid` = `gcontact`.`id`
where `glink`.`zcid` = %d
and `gcontact`.`nurl` in (select nurl from contact where uid = %d and self = 0 and blocked = 0 and hidden = 0 )
$sql_extra limit %d, %d",
intval($zcid),
intval($uid),
intval($start),
intval($limit)
);
return $r;
}
function count_all_friends($uid,$cid) {
$r = q("SELECT count(*) as `total`
FROM `glink` INNER JOIN `gcontact` on `glink`.`gcid` = `gcontact`.`id`
where `glink`.`cid` = %d and `glink`.`uid` = %d AND
((`gcontact`.`last_contact` >= `gcontact`.`last_failure`) OR (`gcontact`.`updated` >= `gcontact`.`last_failure`))",
intval($cid),
intval($uid)
);
if (dbm::is_result($r))
return $r[0]['total'];
return 0;
}
function all_friends($uid,$cid,$start = 0, $limit = 80) {
$r = q("SELECT `gcontact`.*, `contact`.`id` AS `cid`
FROM `glink`
INNER JOIN `gcontact` on `glink`.`gcid` = `gcontact`.`id`
LEFT JOIN `contact` ON `contact`.`nurl` = `gcontact`.`nurl` AND `contact`.`uid` = %d
WHERE `glink`.`cid` = %d AND `glink`.`uid` = %d AND
((`gcontact`.`last_contact` >= `gcontact`.`last_failure`) OR (`gcontact`.`updated` >= `gcontact`.`last_failure`))
ORDER BY `gcontact`.`name` ASC LIMIT %d, %d ",
intval($uid),
intval($cid),
intval($uid),
intval($start),
intval($limit)
);
return $r;
}
function suggestion_query($uid, $start = 0, $limit = 80) {
if (!$uid) {
return array();
}
// Uncommented because the result of the queries are to big to store it in the cache.
// We need to decide if we want to change the db column type or if we want to delete it.
// $list = Cache::get("suggestion_query:".$uid.":".$start.":".$limit);
// if (!is_null($list)) {
// return $list;
// }
$network = array(NETWORK_DFRN);
if (get_config('system','diaspora_enabled'))
$network[] = NETWORK_DIASPORA;
if (!get_config('system','ostatus_disabled'))
$network[] = NETWORK_OSTATUS;
$sql_network = implode("', '", $network);
$sql_network = "'".$sql_network."'";
/// @todo This query is really slow
// By now we cache the data for five minutes
$r = q("SELECT count(glink.gcid) as `total`, gcontact.* from gcontact
INNER JOIN `glink` ON `glink`.`gcid` = `gcontact`.`id`
where uid = %d and not gcontact.nurl in ( select nurl from contact where uid = %d )
AND NOT `gcontact`.`name` IN (SELECT `name` FROM `contact` WHERE `uid` = %d)
AND NOT `gcontact`.`id` IN (SELECT `gcid` FROM `gcign` WHERE `uid` = %d)
AND `gcontact`.`updated` != '0000-00-00 00:00:00'
AND `gcontact`.`last_contact` >= `gcontact`.`last_failure`
AND `gcontact`.`network` IN (%s)
GROUP BY `glink`.`gcid` ORDER BY `gcontact`.`updated` DESC,`total` DESC LIMIT %d, %d",
intval($uid),
intval($uid),
intval($uid),
intval($uid),
$sql_network,
intval($start),
intval($limit)
);
if (dbm::is_result($r) && count($r) >= ($limit -1)) {
// Uncommented because the result of the queries are to big to store it in the cache.
// We need to decide if we want to change the db column type or if we want to delete it.
// Cache::set("suggestion_query:".$uid.":".$start.":".$limit, $r, CACHE_FIVE_MINUTES);
return $r;
}
$r2 = q("SELECT gcontact.* FROM gcontact
INNER JOIN `glink` ON `glink`.`gcid` = `gcontact`.`id`
WHERE `glink`.`uid` = 0 AND `glink`.`cid` = 0 AND `glink`.`zcid` = 0 AND NOT `gcontact`.`nurl` IN (SELECT `nurl` FROM `contact` WHERE `uid` = %d)
AND NOT `gcontact`.`name` IN (SELECT `name` FROM `contact` WHERE `uid` = %d)
AND NOT `gcontact`.`id` IN (SELECT `gcid` FROM `gcign` WHERE `uid` = %d)
AND `gcontact`.`updated` != '0000-00-00 00:00:00'
AND `gcontact`.`last_contact` >= `gcontact`.`last_failure`
AND `gcontact`.`network` IN (%s)
ORDER BY rand() LIMIT %d, %d",
intval($uid),
intval($uid),
intval($uid),
$sql_network,
intval($start),
intval($limit)
);
$list = array();
foreach ($r2 AS $suggestion)
$list[$suggestion["nurl"]] = $suggestion;
foreach ($r AS $suggestion)
$list[$suggestion["nurl"]] = $suggestion;
while (sizeof($list) > ($limit))
array_pop($list);
// Uncommented because the result of the queries are to big to store it in the cache.
// We need to decide if we want to change the db column type or if we want to delete it.
// Cache::set("suggestion_query:".$uid.":".$start.":".$limit, $list, CACHE_FIVE_MINUTES);
return $list;
}
function update_suggestions() {
$a = get_app();
$done = array();
/// @TODO Check if it is really neccessary to poll the own server
poco_load(0,0,0,App::get_baseurl() . '/poco');
$done[] = App::get_baseurl() . '/poco';
if (strlen(get_config('system','directory'))) {
$x = fetch_url(get_server()."/pubsites");
if ($x) {
$j = json_decode($x);
if ($j->entries) {
foreach ($j->entries as $entry) {
poco_check_server($entry->url);
$url = $entry->url . '/poco';
if (! in_array($url,$done)) {
poco_load(0,0,0,$entry->url . '/poco');
}
}
}
}
}
// Query your contacts from Friendica and Redmatrix/Hubzilla for their contacts
$r = q("SELECT DISTINCT(`poco`) AS `poco` FROM `contact` WHERE `network` IN ('%s', '%s')",
dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA)
);
if (dbm::is_result($r)) {
foreach ($r as $rr) {
$base = substr($rr['poco'],0,strrpos($rr['poco'],'/'));
if(! in_array($base,$done))
poco_load(0,0,0,$base);
}
}
}
function poco_discover_federation() {
$last = get_config('poco','last_federation_discovery');
if ($last) {
$next = $last + (24 * 60 * 60);
if($next > time())
return;
}
// Discover Friendica, Hubzilla and Diaspora servers
$serverdata = fetch_url("http://the-federation.info/pods.json");
if ($serverdata) {
$servers = json_decode($serverdata);
foreach($servers->pods AS $server)
poco_check_server("https://".$server->host);
}
// Discover GNU Social Servers
if (!get_config('system','ostatus_disabled')) {
$serverdata = "http://gstools.org/api/get_open_instances/";
$result = z_fetch_url($serverdata);
if ($result["success"]) {
$servers = json_decode($result["body"]);
foreach($servers->data AS $server)
poco_check_server($server->instance_address);
}
}
set_config('poco','last_federation_discovery', time());
}
function poco_discover($complete = false) {
// Update the server list
poco_discover_federation();
$no_of_queries = 5;
$requery_days = intval(get_config("system", "poco_requery_days"));
if ($requery_days == 0)
$requery_days = 7;
$last_update = date("c", time() - (60 * 60 * 24 * $requery_days));
$r = q("SELECT `poco`, `nurl`, `url`, `network` FROM `gserver` WHERE `last_contact` >= `last_failure` AND `poco` != '' AND `last_poco_query` < '%s' ORDER BY RAND()", dbesc($last_update));
if ($r)
foreach ($r AS $server) {
if (!poco_check_server($server["url"], $server["network"])) {
// The server is not reachable? Okay, then we will try it later
q("UPDATE `gserver` SET `last_poco_query` = '%s' WHERE `nurl` = '%s'", dbesc(datetime_convert()), dbesc($server["nurl"]));
continue;
}
// Fetch all users from the other server
$url = $server["poco"]."/?fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,gender,contactType,generation";
logger("Fetch all users from the server ".$server["nurl"], LOGGER_DEBUG);
$retdata = z_fetch_url($url);
if ($retdata["success"]) {
$data = json_decode($retdata["body"]);
poco_discover_server($data, 2);
if (get_config('system','poco_discovery') > 1) {
$timeframe = get_config('system','poco_discovery_since');
if ($timeframe == 0)
$timeframe = 30;
$updatedSince = date("Y-m-d H:i:s", time() - $timeframe * 86400);
// Fetch all global contacts from the other server (Not working with Redmatrix and Friendica versions before 3.3)
$url = $server["poco"]."/@global?updatedSince=".$updatedSince."&fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,gender,contactType,generation";
$success = false;
$retdata = z_fetch_url($url);
if ($retdata["success"]) {
logger("Fetch all global contacts from the server ".$server["nurl"], LOGGER_DEBUG);
$success = poco_discover_server(json_decode($retdata["body"]));
}
if (!$success AND (get_config('system','poco_discovery') > 2)) {
logger("Fetch contacts from users of the server ".$server["nurl"], LOGGER_DEBUG);
poco_discover_server_users($data, $server);
}
}
q("UPDATE `gserver` SET `last_poco_query` = '%s' WHERE `nurl` = '%s'", dbesc(datetime_convert()), dbesc($server["nurl"]));
if (!$complete AND (--$no_of_queries == 0))
break;
} else {
// If the server hadn't replied correctly, then force a sanity check
poco_check_server($server["url"], $server["network"], true);
// If we couldn't reach the server, we will try it some time later
q("UPDATE `gserver` SET `last_poco_query` = '%s' WHERE `nurl` = '%s'", dbesc(datetime_convert()), dbesc($server["nurl"]));
}
}
}
function poco_discover_server_users($data, $server) {
if (!isset($data->entry))
return;
foreach ($data->entry AS $entry) {
$username = "";
if (isset($entry->urls)) {
foreach($entry->urls as $url)
if ($url->type == 'profile') {
$profile_url = $url->value;
$urlparts = parse_url($profile_url);
$username = end(explode("/", $urlparts["path"]));
}
}
if ($username != "") {
logger("Fetch contacts for the user ".$username." from the server ".$server["nurl"], LOGGER_DEBUG);
// Fetch all contacts from a given user from the other server
$url = $server["poco"]."/".$username."/?fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,gender,contactType,generation";
$retdata = z_fetch_url($url);
if ($retdata["success"])
poco_discover_server(json_decode($retdata["body"]), 3);
}
}
}
function poco_discover_server($data, $default_generation = 0) {
if (!isset($data->entry) OR !count($data->entry))
return false;
$success = false;
foreach ($data->entry AS $entry) {
$profile_url = '';
$profile_photo = '';
$connect_url = '';
$name = '';
$network = '';
$updated = '0000-00-00 00:00:00';
$location = '';
$about = '';
$keywords = '';
$gender = '';
$contact_type = -1;
$generation = $default_generation;
$name = $entry->displayName;
if (isset($entry->urls)) {
foreach($entry->urls as $url) {
if ($url->type == 'profile') {
$profile_url = $url->value;
continue;
}
if ($url->type == 'webfinger') {
$connect_url = str_replace('acct:' , '', $url->value);
continue;
}
}
}
if (isset($entry->photos)) {
foreach ($entry->photos as $photo) {
if ($photo->type == 'profile') {
$profile_photo = $photo->value;
continue;
}
}
}
if (isset($entry->updated)) {
$updated = date("Y-m-d H:i:s", strtotime($entry->updated));
}
if(isset($entry->network)) {
$network = $entry->network;
}
if(isset($entry->currentLocation)) {
$location = $entry->currentLocation;
}
if(isset($entry->aboutMe)) {
$about = html2bbcode($entry->aboutMe);
}
if(isset($entry->gender)) {
$gender = $entry->gender;
}
if(isset($entry->generation) AND ($entry->generation > 0)) {
$generation = ++$entry->generation;
}
if(isset($entry->contactType) AND ($entry->contactType >= 0)) {
$contact_type = $entry->contactType;
}
if(isset($entry->tags)) {
foreach ($entry->tags as $tag) {
$keywords = implode(", ", $tag);
}
}
if ($generation > 0) {
$success = true;
logger("Store profile ".$profile_url, LOGGER_DEBUG);
poco_check($profile_url, $name, $network, $profile_photo, $about, $location, $gender, $keywords, $connect_url, $updated, $generation, 0, 0, 0);
$gcontact = array("url" => $profile_url, "contact-type" => $contact_type, "generation" => $generation);
update_gcontact($gcontact);
logger("Done for profile ".$profile_url, LOGGER_DEBUG);
}
}
return $success;
}
/**
* @brief Removes unwanted parts from a contact url
*
* @param string $url Contact url
* @return string Contact url with the wanted parts
*/
function clean_contact_url($url) {
$parts = parse_url($url);
if (!isset($parts["scheme"]) OR !isset($parts["host"]))
return $url;
$new_url = $parts["scheme"]."://".$parts["host"];
if (isset($parts["port"]))
$new_url .= ":".$parts["port"];
if (isset($parts["path"]))
$new_url .= $parts["path"];
if ($new_url != $url)
logger("Cleaned contact url ".$url." to ".$new_url." - Called by: ".App::callstack(), LOGGER_DEBUG);
return $new_url;
}
/**
* @brief Replace alternate OStatus user format with the primary one
*
* @param arr $contact contact array (called by reference)
*/
function fix_alternate_contact_address(&$contact) {
if (($contact["network"] == NETWORK_OSTATUS) AND poco_alternate_ostatus_url($contact["url"])) {
$data = probe_url($contact["url"]);
if ($contact["network"] == NETWORK_OSTATUS) {
logger("Fix primary url from ".$contact["url"]." to ".$data["url"]." - Called by: ".App::callstack(), LOGGER_DEBUG);
$contact["url"] = $data["url"];
$contact["addr"] = $data["addr"];
$contact["alias"] = $data["alias"];
$contact["server_url"] = $data["baseurl"];
}
}
}
/**
* @brief Fetch the gcontact id, add an entry if not existed
*
* @param arr $contact contact array
* @return bool|int Returns false if not found, integer if contact was found
*/
function get_gcontact_id($contact) {
$gcontact_id = 0;
$doprobing = false;
if (in_array($contact["network"], array(NETWORK_PHANTOM))) {
logger("Invalid network for contact url ".$contact["url"]." - Called by: ".App::callstack(), LOGGER_DEBUG);
return false;
}
if ($contact["network"] == NETWORK_STATUSNET)
$contact["network"] = NETWORK_OSTATUS;
// All new contacts are hidden by default
if (!isset($contact["hide"]))
$contact["hide"] = true;
// Replace alternate OStatus user format with the primary one
fix_alternate_contact_address($contact);
// Remove unwanted parts from the contact url (e.g. "?zrl=...")
if (in_array($contact["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS)))
$contact["url"] = clean_contact_url($contact["url"]);
$r = q("SELECT `id`, `last_contact`, `last_failure`, `network` FROM `gcontact` WHERE `nurl` = '%s' LIMIT 2",
dbesc(normalise_link($contact["url"])));
if ($r) {
$gcontact_id = $r[0]["id"];
// Update every 90 days
if (in_array($r[0]["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""))) {
$last_failure_str = $r[0]["last_failure"];
$last_failure = strtotime($r[0]["last_failure"]);
$last_contact_str = $r[0]["last_contact"];
$last_contact = strtotime($r[0]["last_contact"]);
$doprobing = (((time() - $last_contact) > (90 * 86400)) AND ((time() - $last_failure) > (90 * 86400)));
}
} else {
q("INSERT INTO `gcontact` (`name`, `nick`, `addr` , `network`, `url`, `nurl`, `photo`, `created`, `updated`, `location`, `about`, `hide`, `generation`)
VALUES ('%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d)",
dbesc($contact["name"]),
dbesc($contact["nick"]),
dbesc($contact["addr"]),
dbesc($contact["network"]),
dbesc($contact["url"]),
dbesc(normalise_link($contact["url"])),
dbesc($contact["photo"]),
dbesc(datetime_convert()),
dbesc(datetime_convert()),
dbesc($contact["location"]),
dbesc($contact["about"]),
intval($contact["hide"]),
intval($contact["generation"])
);
$r = q("SELECT `id`, `network` FROM `gcontact` WHERE `nurl` = '%s' ORDER BY `id` LIMIT 2",
dbesc(normalise_link($contact["url"])));
if ($r) {
$gcontact_id = $r[0]["id"];
$doprobing = in_array($r[0]["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""));
}
}
if ($doprobing) {
logger("Last Contact: ". $last_contact_str." - Last Failure: ".$last_failure_str." - Checking: ".$contact["url"], LOGGER_DEBUG);
proc_run(PRIORITY_LOW, 'include/gprobe.php', bin2hex($contact["url"]));
}
if ((dbm::is_result($r)) AND (count($r) > 1) AND ($gcontact_id > 0) AND ($contact["url"] != ""))
q("DELETE FROM `gcontact` WHERE `nurl` = '%s' AND `id` != %d",
dbesc(normalise_link($contact["url"])),
intval($gcontact_id));
return $gcontact_id;
}
/**
* @brief Updates the gcontact table from a given array
*
* @param arr $contact contact array
* @return bool|int Returns false if not found, integer if contact was found
*/
function update_gcontact($contact) {
// Check for invalid "contact-type" value
if (isset($contact['contact-type']) AND (intval($contact['contact-type']) < 0)) {
$contact['contact-type'] = 0;
}
/// @todo update contact table as well
$gcontact_id = get_gcontact_id($contact);
if (!$gcontact_id)
return false;
$r = q("SELECT `name`, `nick`, `photo`, `location`, `about`, `addr`, `generation`, `birthday`, `gender`, `keywords`,
`contact-type`, `hide`, `nsfw`, `network`, `alias`, `notify`, `server_url`, `connect`, `updated`, `url`
FROM `gcontact` WHERE `id` = %d LIMIT 1",
intval($gcontact_id));
// Get all field names
$fields = array();
foreach ($r[0] AS $field => $data)
$fields[$field] = $data;
unset($fields["url"]);
unset($fields["updated"]);
unset($fields["hide"]);
// Bugfix: We had an error in the storing of keywords which lead to the "0"
// This value is still transmitted via poco.
if ($contact["keywords"] == "0")
unset($contact["keywords"]);
if ($r[0]["keywords"] == "0")
$r[0]["keywords"] = "";
// assign all unassigned fields from the database entry
foreach ($fields AS $field => $data)
if (!isset($contact[$field]) OR ($contact[$field] == ""))
$contact[$field] = $r[0][$field];
if (!isset($contact["hide"]))
$contact["hide"] = $r[0]["hide"];
$fields["hide"] = $r[0]["hide"];
if ($contact["network"] == NETWORK_STATUSNET)
$contact["network"] = NETWORK_OSTATUS;
// Replace alternate OStatus user format with the primary one
fix_alternate_contact_address($contact);
if (!isset($contact["updated"]))
$contact["updated"] = datetime_convert();
if ($contact["server_url"] == "") {
$server_url = $contact["url"];
$server_url = matching_url($server_url, $contact["alias"]);
if ($server_url != "")
$contact["server_url"] = $server_url;
$server_url = matching_url($server_url, $contact["photo"]);
if ($server_url != "")
$contact["server_url"] = $server_url;
$server_url = matching_url($server_url, $contact["notify"]);
if ($server_url != "")
$contact["server_url"] = $server_url;
} else
$contact["server_url"] = normalise_link($contact["server_url"]);
if (($contact["addr"] == "") AND ($contact["server_url"] != "") AND ($contact["nick"] != "")) {
$hostname = str_replace("http://", "", $contact["server_url"]);
$contact["addr"] = $contact["nick"]."@".$hostname;
}
// Check if any field changed
$update = false;
unset($fields["generation"]);
if ((($contact["generation"] > 0) AND ($contact["generation"] <= $r[0]["generation"])) OR ($r[0]["generation"] == 0)) {
foreach ($fields AS $field => $data)
if ($contact[$field] != $r[0][$field]) {
logger("Difference for contact ".$contact["url"]." in field '".$field."'. New value: '".$contact[$field]."', old value '".$r[0][$field]."'", LOGGER_DEBUG);
$update = true;
}
if ($contact["generation"] < $r[0]["generation"]) {
logger("Difference for contact ".$contact["url"]." in field 'generation'. new value: '".$contact["generation"]."', old value '".$r[0]["generation"]."'", LOGGER_DEBUG);
$update = true;
}
}
if ($update) {
logger("Update gcontact for ".$contact["url"], LOGGER_DEBUG);
q("UPDATE `gcontact` SET `photo` = '%s', `name` = '%s', `nick` = '%s', `addr` = '%s', `network` = '%s',
`birthday` = '%s', `gender` = '%s', `keywords` = '%s', `hide` = %d, `nsfw` = %d,
`contact-type` = %d, `alias` = '%s', `notify` = '%s', `url` = '%s',
`location` = '%s', `about` = '%s', `generation` = %d, `updated` = '%s',
`server_url` = '%s', `connect` = '%s'
WHERE `nurl` = '%s' AND (`generation` = 0 OR `generation` >= %d)",
dbesc($contact["photo"]), dbesc($contact["name"]), dbesc($contact["nick"]),
dbesc($contact["addr"]), dbesc($contact["network"]), dbesc($contact["birthday"]),
dbesc($contact["gender"]), dbesc($contact["keywords"]), intval($contact["hide"]),
intval($contact["nsfw"]), intval($contact["contact-type"]), dbesc($contact["alias"]),
dbesc($contact["notify"]), dbesc($contact["url"]), dbesc($contact["location"]),
dbesc($contact["about"]), intval($contact["generation"]), dbesc($contact["updated"]),
dbesc($contact["server_url"]), dbesc($contact["connect"]),
dbesc(normalise_link($contact["url"])), intval($contact["generation"]));
// Now update the contact entry with the user id "0" as well.
// This is used for the shadow copies of public items.
$r = q("SELECT `id` FROM `contact` WHERE `nurl` = '%s' AND `uid` = 0 ORDER BY `id` LIMIT 1",
dbesc(normalise_link($contact["url"])));
if ($r) {
logger("Update shadow contact ".$r[0]["id"], LOGGER_DEBUG);
update_contact_avatar($contact["photo"], 0, $r[0]["id"]);
q("UPDATE `contact` SET `name` = '%s', `nick` = '%s', `addr` = '%s',
`network` = '%s', `bd` = '%s', `gender` = '%s',
`keywords` = '%s', `alias` = '%s', `contact-type` = %d,
`url` = '%s', `location` = '%s', `about` = '%s'
WHERE `id` = %d",
dbesc($contact["name"]), dbesc($contact["nick"]), dbesc($contact["addr"]),
dbesc($contact["network"]), dbesc($contact["birthday"]), dbesc($contact["gender"]),
dbesc($contact["keywords"]), dbesc($contact["alias"]), intval($contact["contact-type"]),
dbesc($contact["url"]), dbesc($contact["location"]), dbesc($contact["about"]),
intval($r[0]["id"]));
}
}
return $gcontact_id;
}
/**
* @brief Updates the gcontact entry from probe
*
* @param str $url profile link
*/
function update_gcontact_from_probe($url) {
$data = probe_url($url);
if (in_array($data["network"], array(NETWORK_PHANTOM))) {
logger("Invalid network for contact url ".$data["url"]." - Called by: ".App::callstack(), LOGGER_DEBUG);
return;
}
update_gcontact($data);
}
/**
* @brief Update the gcontact entry for a given user id
*
* @param int $uid User ID
*/
function update_gcontact_for_user($uid) {
$r = q("SELECT `profile`.`locality`, `profile`.`region`, `profile`.`country-name`,
`profile`.`name`, `profile`.`about`, `profile`.`gender`,
`profile`.`pub_keywords`, `profile`.`dob`, `profile`.`photo`,
`profile`.`net-publish`, `user`.`nickname`, `user`.`hidewall`,
`contact`.`notify`, `contact`.`url`, `contact`.`addr`
FROM `profile`
INNER JOIN `user` ON `user`.`uid` = `profile`.`uid`
INNER JOIN `contact` ON `contact`.`uid` = `profile`.`uid`
WHERE `profile`.`uid` = %d AND `profile`.`is-default` AND `contact`.`self`",
intval($uid));
$location = formatted_location(array("locality" => $r[0]["locality"], "region" => $r[0]["region"],
"country-name" => $r[0]["country-name"]));
// The "addr" field was added in 3.4.3 so it can be empty for older users
if ($r[0]["addr"] != "")
$addr = $r[0]["nickname"].'@'.str_replace(array("http://", "https://"), "", App::get_baseurl());
else
$addr = $r[0]["addr"];
$gcontact = array("name" => $r[0]["name"], "location" => $location, "about" => $r[0]["about"],
"gender" => $r[0]["gender"], "keywords" => $r[0]["pub_keywords"],
"birthday" => $r[0]["dob"], "photo" => $r[0]["photo"],
"notify" => $r[0]["notify"], "url" => $r[0]["url"],
"hide" => ($r[0]["hidewall"] OR !$r[0]["net-publish"]),
"nick" => $r[0]["nickname"], "addr" => $addr,
"connect" => $addr, "server_url" => App::get_baseurl(),
"generation" => 1, "network" => NETWORK_DFRN);
update_gcontact($gcontact);
}
/**
* @brief Fetches users of given GNU Social server
*
* If the "Statistics" plugin is enabled (See http://gstools.org/ for details) we query user data with this.
*
* @param str $server Server address
*/
function gs_fetch_users($server) {
logger("Fetching users from GNU Social server ".$server, LOGGER_DEBUG);
$url = $server."/main/statistics";
$result = z_fetch_url($url);
if (!$result["success"])
return false;
$statistics = json_decode($result["body"]);
if (is_object($statistics->config)) {
if ($statistics->config->instance_with_ssl)
$server = "https://";
else
$server = "http://";
$server .= $statistics->config->instance_address;
$hostname = $statistics->config->instance_address;
} else {
if ($statistics->instance_with_ssl)
$server = "https://";
else
$server = "http://";
$server .= $statistics->instance_address;
$hostname = $statistics->instance_address;
}
if (is_object($statistics->users))
foreach ($statistics->users AS $nick => $user) {
$profile_url = $server."/".$user->nickname;
$contact = array("url" => $profile_url,
"name" => $user->fullname,
"addr" => $user->nickname."@".$hostname,
"nick" => $user->nickname,
"about" => $user->bio,
"network" => NETWORK_OSTATUS,
"photo" => App::get_baseurl()."/images/person-175.jpg");
get_gcontact_id($contact);
}
}
/**
* @brief Asking GNU Social server on a regular base for their user data
*
*/
function gs_discover() {
$requery_days = intval(get_config("system", "poco_requery_days"));
$last_update = date("c", time() - (60 * 60 * 24 * $requery_days));
$r = q("SELECT `nurl`, `url` FROM `gserver` WHERE `last_contact` >= `last_failure` AND `network` = '%s' AND `last_poco_query` < '%s' ORDER BY RAND() LIMIT 5",
dbesc(NETWORK_OSTATUS), dbesc($last_update));
if (!$r)
return;
foreach ($r AS $server) {
gs_fetch_users($server["url"]);
q("UPDATE `gserver` SET `last_poco_query` = '%s' WHERE `nurl` = '%s'", dbesc(datetime_convert()), dbesc($server["nurl"]));
}
}
?>