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friendica-github/include/diaspora2.php
Michael Vogel cb900c5742 Reshares could work now, code is cleaned
2016-03-01 07:57:26 +01:00

1521 lines
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<?php
/**
* @file include/diaspora.php
* @brief The implementation of the diaspora protocol
*/
require_once("include/items.php");
require_once("include/bb2diaspora.php");
require_once("include/Scrape.php");
require_once("include/Contact.php");
require_once("include/Photo.php");
require_once("include/socgraph.php");
require_once("include/group.php");
require_once("include/api.php");
class xml {
function from_array($array, &$xml) {
if (!is_object($xml)) {
foreach($array as $key => $value) {
$root = new SimpleXMLElement('<'.$key.'/>');
array_to_xml($value, $root);
$dom = dom_import_simplexml($root)->ownerDocument;
$dom->formatOutput = true;
return $dom->saveXML();
}
}
foreach($array as $key => $value) {
if (!is_array($value) AND !is_numeric($key))
$xml->addChild($key, $value);
elseif (is_array($value))
array_to_xml($value, $xml->addChild($key));
}
}
function copy(&$source, &$target, $elementname) {
if (count($source->children()) == 0)
$target->addChild($elementname, $source);
else {
$child = $target->addChild($elementname);
foreach ($source->children() AS $childfield => $childentry)
self::copy($childentry, $child, $childfield);
}
}
}
/**
* @brief This class contain functions to create and send Diaspora XML files
*
*/
class diaspora {
public static function dispatch_public($msg) {
$enabled = intval(get_config("system", "diaspora_enabled"));
if (!$enabled) {
logger("diaspora is disabled");
return false;
}
// Use a dummy importer to import the data for the public copy
$importer = array("uid" => 0, "page-flags" => PAGE_FREELOVE);
$item_id = self::dispatch($importer,$msg);
// Now distribute it to the followers
$r = q("SELECT `user`.* FROM `user` WHERE `user`.`uid` IN
(SELECT `contact`.`uid` FROM `contact` WHERE `contact`.`network` = '%s' AND `contact`.`addr` = '%s')
AND NOT `account_expired` AND NOT `account_removed`",
dbesc(NETWORK_DIASPORA),
dbesc($msg["author"])
);
if(count($r)) {
foreach($r as $rr) {
logger("delivering to: ".$rr["username"]);
self::dispatch($rr,$msg);
}
} else
logger("No subscribers for ".$msg["author"]." ".print_r($msg, true));
return $item_id;
}
public static function dispatch($importer, $msg) {
// The sender is the handle of the contact that sent the message.
// This will often be different with relayed messages (for example "like" and "comment")
$sender = $msg["author"];
if (!diaspora::valid_posting($msg, $fields)) {
logger("Invalid posting");
return false;
}
$type = $fields->getName();
switch ($type) {
case "account_deletion":
return true;
//return self::import_account_deletion($importer, $fields);
case "comment":
return true;
//return self::import_comment($importer, $sender, $fields);
case "conversation":
return self::import_conversation($importer, $fields);
case "like":
return true;
//return self::import_like($importer, $sender, $fields);
case "message":
return true;
//return self::import_message($importer, $fields);
case "participation": // Not implemented
return self::import_participation($importer, $fields);
case "photo":
return self::import_photo($importer, $fields);
case "poll_participation": // Not implemented
return self::import_poll_participation($importer, $fields);
case "profile":
return true;
//return self::import_profile($importer, $fields);
case "request":
return self::import_request($importer, $fields);
case "reshare":
return self::import_reshare($importer, $fields);
case "retraction":
return self::import_retraction($importer, $fields);
case "status_message":
return true;
//return self::import_status_message($importer, $fields, $msg, $data2);
default:
logger("Unknown message type ".$type);
return false;
}
return true;
}
/**
* @brief Checks if a posting is valid and fetches the data fields.
*
* This function does not only check the signature.
* It also does the conversion between the old and the new diaspora format.
*
* @param array $msg Array with the XML, the sender handle and the sender signature
* @param object $fields SimpleXML object that contains the posting when it is valid
*
* @return bool Is the posting valid?
*/
private function valid_posting($msg, &$fields) {
$data = parse_xml_string($msg["message"], false);
if (!is_object($data))
return false;
$first_child = $data->getName();
// Is this the new or the old version?
if ($data->getName() == "XML") {
$oldXML = true;
foreach ($data->post->children() as $child)
$element = $child;
} else {
$oldXML = false;
$element = $data;
}
$type = $element->getName();
// All retractions are handled identically from now on.
// In the new version there will only be "retraction".
if (in_array($type, array("signed_retraction", "relayable_retraction")))
$type = "retraction";
$fields = new SimpleXMLElement("<".$type."/>");
$signed_data = "";
foreach ($element->children() AS $fieldname => $entry) {
if ($oldXML) {
// Translation for the old XML structure
if ($fieldname == "diaspora_handle")
$fieldname = "author";
if ($fieldname == "participant_handles")
$fieldname = "participants";
if (in_array($type, array("like", "participation"))) {
if ($fieldname == "target_type")
$fieldname = "parent_type";
}
if ($fieldname == "sender_handle")
$fieldname = "author";
if ($fieldname == "recipient_handle")
$fieldname = "recipient";
if ($fieldname == "root_diaspora_id")
$fieldname = "root_author";
if ($type == "retraction") {
if ($fieldname == "post_guid")
$fieldname = "target_guid";
if ($fieldname == "type")
$fieldname = "target_type";
}
}
if ($fieldname == "author_signature")
$author_signature = base64_decode($entry);
elseif ($fieldname == "parent_author_signature")
$parent_author_signature = base64_decode($entry);
elseif ($fieldname != "target_author_signature") {
if ($signed_data != "") {
$signed_data .= ";";
$signed_data_parent .= ";";
}
$signed_data .= $entry;
}
if (!in_array($fieldname, array("parent_author_signature", "target_author_signature")))
xml::copy($entry, $fields, $fieldname);
}
// This is something that shouldn't happen at all.
if (in_array($type, array("status_message", "reshare", "profile")))
if ($msg["author"] != $fields->author) {
logger("Message handle is not the same as envelope sender. Quitting this message.");
return false;
}
// Only some message types have signatures. So we quit here for the other types.
if (!in_array($type, array("comment", "conversation", "message", "like")))
return true;
// No author_signature? This is a must, so we quit.
if (!isset($author_signature))
return false;
if (isset($parent_author_signature)) {
$key = self::get_key($msg["author"]);
if (!rsa_verify($signed_data, $parent_author_signature, $key, "sha256"))
return false;
}
$key = self::get_key($fields->author);
return rsa_verify($signed_data, $author_signature, $key, "sha256");
}
private function get_key($handle) {
logger("Fetching diaspora key for: ".$handle);
$r = self::get_person_by_handle($handle);
if($r)
return $r["pubkey"];
return "";
}
private function get_person_by_handle($handle) {
$r = q("SELECT * FROM `fcontact` WHERE `network` = '%s' AND `addr` = '%s' LIMIT 1",
dbesc(NETWORK_DIASPORA),
dbesc($handle)
);
if (count($r)) {
$person = $r[0];
logger("In cache ".print_r($r,true), LOGGER_DEBUG);
// update record occasionally so it doesn't get stale
$d = strtotime($person["updated"]." +00:00");
if ($d < strtotime("now - 14 days"))
$update = true;
}
if (!$person OR $update) {
logger("create or refresh", LOGGER_DEBUG);
$r = probe_url($handle, PROBE_DIASPORA);
// Note that Friendica contacts will return a "Diaspora person"
// if Diaspora connectivity is enabled on their server
if (count($r) AND ($r["network"] === NETWORK_DIASPORA)) {
self::add_fcontact($r, $update);
$person = $r;
}
}
return $person;
}
private function add_fcontact($arr, $update = false) {
/// @todo Remove this function from include/network.php
if($update) {
$r = q("UPDATE `fcontact` SET
`name` = '%s',
`photo` = '%s',
`request` = '%s',
`nick` = '%s',
`addr` = '%s',
`batch` = '%s',
`notify` = '%s',
`poll` = '%s',
`confirm` = '%s',
`alias` = '%s',
`pubkey` = '%s',
`updated` = '%s'
WHERE `url` = '%s' AND `network` = '%s'",
dbesc($arr["name"]),
dbesc($arr["photo"]),
dbesc($arr["request"]),
dbesc($arr["nick"]),
dbesc($arr["addr"]),
dbesc($arr["batch"]),
dbesc($arr["notify"]),
dbesc($arr["poll"]),
dbesc($arr["confirm"]),
dbesc($arr["alias"]),
dbesc($arr["pubkey"]),
dbesc(datetime_convert()),
dbesc($arr["url"]),
dbesc($arr["network"])
);
} else {
$r = q("INSERT INTO `fcontact` (`url`,`name`,`photo`,`request`,`nick`,`addr`,
`batch`, `notify`,`poll`,`confirm`,`network`,`alias`,`pubkey`,`updated`)
VALUES ('%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s')",
dbesc($arr["url"]),
dbesc($arr["name"]),
dbesc($arr["photo"]),
dbesc($arr["request"]),
dbesc($arr["nick"]),
dbesc($arr["addr"]),
dbesc($arr["batch"]),
dbesc($arr["notify"]),
dbesc($arr["poll"]),
dbesc($arr["confirm"]),
dbesc($arr["network"]),
dbesc($arr["alias"]),
dbesc($arr["pubkey"]),
dbesc(datetime_convert())
);
}
return $r;
}
private function get_contact_by_handle($uid, $handle) {
$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `addr` = '%s' LIMIT 1",
intval($uid),
dbesc($handle)
);
if ($r AND count($r))
return $r[0];
$handle_parts = explode("@", $handle);
$nurl_sql = '%%://' . $handle_parts[1] . '%%/profile/' . $handle_parts[0];
$r = q("SELECT * FROM `contact` WHERE `network` = '%s' AND `uid` = %d AND `nurl` LIKE '%s' LIMIT 1",
dbesc(NETWORK_DFRN),
intval($uid),
dbesc($nurl_sql)
);
if($r AND count($r))
return $r[0];
return false;
}
private function post_allow($importer, $contact, $is_comment = false) {
// perhaps we were already sharing with this person. Now they're sharing with us.
// That makes us friends.
// Normally this should have handled by getting a request - but this could get lost
if($contact["rel"] == CONTACT_IS_FOLLOWER && in_array($importer["page-flags"], array(PAGE_FREELOVE))) {
q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d",
intval(CONTACT_IS_FRIEND),
intval($contact["id"]),
intval($importer["uid"])
);
$contact["rel"] = CONTACT_IS_FRIEND;
logger("defining user ".$contact["nick"]." as friend");
}
if(($contact["blocked"]) || ($contact["readonly"]) || ($contact["archive"]))
return false;
if($contact["rel"] == CONTACT_IS_SHARING || $contact["rel"] == CONTACT_IS_FRIEND)
return true;
if($contact["rel"] == CONTACT_IS_FOLLOWER)
if(($importer["page-flags"] == PAGE_COMMUNITY) OR $is_comment)
return true;
// Messages for the global users are always accepted
if ($importer["uid"] == 0)
return true;
return false;
}
private function get_allowed_contact_by_handle($importer, $handle, $is_comment = false) {
$contact = self::get_contact_by_handle($importer["uid"], $handle);
if (!$contact) {
logger("A Contact for handle ".$handle." and user ".$importer["uid"]." was not found");
return false;
}
if (!self::post_allow($importer, $contact, false)) {
logger("The handle: ".$handle." is not allowed to post to user ".$importer["uid"]);
return false;
}
return $contact;
}
private function message_exists($uid, $guid) {
$r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
intval($uid),
dbesc($guid)
);
if(count($r)) {
logger("message ".$guid." already exists for user ".$uid);
return false;
}
return true;
}
private function fetch_guid($item) {
preg_replace_callback("&\[url=/posts/([^\[\]]*)\](.*)\[\/url\]&Usi",
function ($match) use ($item){
return(self::fetch_guid_sub($match, $item));
},$item["body"]);
}
private function fetch_guid_sub($match, $item) {
if (!self::store_by_guid($match[1], $item["author-link"]))
self::store_by_guid($match[1], $item["owner-link"]);
}
private function store_by_guid($guid, $server, $uid = 0) {
$serverparts = parse_url($server);
$server = $serverparts["scheme"]."://".$serverparts["host"];
logger("Trying to fetch item ".$guid." from ".$server, LOGGER_DEBUG);
$msg = self::fetch_message($guid, $server);
if (!$msg)
return false;
logger("Successfully fetched item ".$guid." from ".$server, LOGGER_DEBUG);
// Now call the dispatcher
return self::dispatch_public($msg);
}
private function fetch_message($guid, $server, $level = 0) {
if ($level > 5)
return false;
// This will not work if the server is not a Diaspora server
$source_url = $server."/p/".$guid.".xml";
$x = fetch_url($source_url);
if(!$x)
return false;
/// @todo - should maybe solved by the dispatcher
$source_xml = parse_xml_string($x, false);
if (!is_object($source_xml))
return false;
if ($source_xml->post->reshare) {
// Reshare of a reshare - old Diaspora version
return self::fetch_message($source_xml->post->reshare->root_guid, $server, ++$level);
} elseif ($source_xml->getName() == "reshare") {
// Reshare of a reshare - new Diaspora version
return self::fetch_message($source_xml->root_guid, $server, ++$level);
}
// Fetch the author - for the old and the new Diaspora version
if ($source_xml->post->status_message->diaspora_handle)
$author = (string)$source_xml->post->status_message->diaspora_handle;
elseif ($source_xml->author)
$author = (string)$source_xml->author;
if (!$author)
return false;
$msg = array("message" => $x, "author" => $author);
// We don't really need this, but until the work is unfinished we better will keep this
$msg["key"] = self::get_key($msg["author"]);
return $msg;
}
private function fetch_parent_item($uid, $guid, $author, $contact) {
$r = q("SELECT `id`, `body`, `wall`, `uri`, `private`, `origin`,
`author-name`, `author-link`, `author-avatar`,
`owner-name`, `owner-link`, `owner-avatar`
FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
intval($uid), dbesc($guid));
if(!count($r)) {
$result = self::store_by_guid($guid, $contact["url"], $uid);
if (!$result) {
$person = self::get_person_by_handle($author);
$result = self::store_by_guid($guid, $person["url"], $uid);
}
if ($result) {
logger("Fetched missing item ".$guid." - result: ".$result, LOGGER_DEBUG);
$r = q("SELECT `id`, `body`, `wall`, `uri`, `private`, `origin`,
`author-name`, `author-link`, `author-avatar`,
`owner-name`, `owner-link`, `owner-avatar`
FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
intval($uid), dbesc($guid));
}
}
if (!count($r)) {
logger("parent item not found: parent: ".$guid." item: ".$guid);
return false;
} else
return $r[0];
}
private function get_author_contact_by_url($contact, $person, $uid) {
$r = q("SELECT `id`, `network` FROM `contact` WHERE `nurl` = '%s' AND `uid` = %d LIMIT 1",
dbesc(normalise_link($person["url"])), intval($uid));
if ($r) {
$cid = $r[0]["id"];
$network = $r[0]["network"];
} else {
$cid = $contact["id"];
$network = NETWORK_DIASPORA;
}
return (array("cid" => $cid, "network" => $network));
}
public static function is_redmatrix($url) {
return(strstr($url, "/channel/"));
}
private function plink($addr, $guid) {
$r = q("SELECT `url`, `nick`, `network` FROM `fcontact` WHERE `addr`='%s' LIMIT 1", dbesc($addr));
// Fallback
if (!$r)
return "https://".substr($addr,strpos($addr,"@")+1)."/posts/".$guid;
// Friendica contacts are often detected as Diaspora contacts in the "fcontact" table
// So we try another way as well.
$s = q("SELECT `network` FROM `gcontact` WHERE `nurl`='%s' LIMIT 1", dbesc(normalise_link($r[0]["url"])));
if ($s)
$r[0]["network"] = $s[0]["network"];
if ($r[0]["network"] == NETWORK_DFRN)
return(str_replace("/profile/".$r[0]["nick"]."/", "/display/".$guid, $r[0]["url"]."/"));
if (self::is_redmatrix($r[0]["url"]))
return $r[0]["url"]."/?f=&mid=".$guid;
return "https://".substr($addr,strpos($addr,"@")+1)."/posts/".$guid;
}
private function import_account_deletion($importer, $data) {
$author = notags(unxmlify($data->author));
$contact = self::get_contact_by_handle($importer["uid"], $author);
if (!$contact) {
logger("cannot find contact for author: ".$author);
return false;
}
// We now remove the contact
contact_remove($contact["id"]);
return true;
}
private function import_comment($importer, $sender, $data) {
$guid = notags(unxmlify($data->guid));
$parent_guid = notags(unxmlify($data->parent_guid));
$text = unxmlify($data->text);
$author = notags(unxmlify($data->author));
$contact = self::get_allowed_contact_by_handle($importer, $sender, true);
if (!$contact)
return false;
if (self::message_exists($importer["uid"], $guid))
return false;
$parent_item = self::fetch_parent_item($importer["uid"], $parent_guid, $author, $contact);
if (!$parent_item)
return false;
$person = self::get_person_by_handle($author);
if (!is_array($person)) {
logger("unable to find author details");
return false;
}
// Fetch the contact id - if we know this contact
$author_contact = self::get_author_contact_by_url($contact, $person, $importer["uid"]);
$datarray = array();
$datarray["uid"] = $importer["uid"];
$datarray["contact-id"] = $author_contact["cid"];
$datarray["network"] = $author_contact["network"];
$datarray["author-name"] = $person["name"];
$datarray["author-link"] = $person["url"];
$datarray["author-avatar"] = ((x($person,"thumb")) ? $person["thumb"] : $person["photo"]);
$datarray["owner-name"] = $contact["name"];
$datarray["owner-link"] = $contact["url"];
$datarray["owner-avatar"] = ((x($contact,"thumb")) ? $contact["thumb"] : $contact["photo"]);
$datarray["guid"] = $guid;
$datarray["uri"] = $author.":".$guid;
$datarray["type"] = "remote-comment";
$datarray["verb"] = ACTIVITY_POST;
$datarray["gravity"] = GRAVITY_COMMENT;
$datarray["parent-uri"] = $parent_item["uri"];
$datarray["object-type"] = ACTIVITY_OBJ_COMMENT;
$datarray["object"] = json_encode($data);
$datarray["body"] = diaspora2bb($text);
self::fetch_guid($datarray);
$message_id = item_store($datarray);
// print_r($datarray);
// If we are the origin of the parent we store the original data and notify our followers
if($message_id AND $parent_item["origin"]) {
// Formerly we stored the signed text, the signature and the author in different fields.
// The new Diaspora protocol can have variable fields. We now store the data in correct order in a single field.
q("INSERT INTO `sign` (`iid`,`signed_text`) VALUES (%d,'%s')",
intval($message_id),
dbesc(json_encode($data))
);
// notify others
proc_run("php", "include/notifier.php", "comment-import", $message_id);
}
return $message_id;
}
private function import_conversation($importer, $data) {
/*
$guid = notags(unxmlify($xml->guid));
$subject = notags(unxmlify($xml->subject));
$diaspora_handle = notags(unxmlify($xml->diaspora_handle));
$participant_handles = notags(unxmlify($xml->participant_handles));
$created_at = datetime_convert('UTC','UTC',notags(unxmlify($xml->created_at)));
$parent_uri = $diaspora_handle . ':' . $guid;
$messages = $xml->message;
if(! count($messages)) {
logger('diaspora_conversation: empty conversation');
return;
}
$contact = self::get_allowed_contact_by_handle($importer, $sender, true)
if (!$contact)
return false;
$conversation = null;
$c = q("select * from conv where uid = %d and guid = '%s' limit 1",
intval($importer['uid']),
dbesc($guid)
);
if(count($c))
$conversation = $c[0];
else {
$r = q("insert into conv (uid,guid,creator,created,updated,subject,recips) values(%d, '%s', '%s', '%s', '%s', '%s', '%s') ",
intval($importer['uid']),
dbesc($guid),
dbesc($diaspora_handle),
dbesc(datetime_convert('UTC','UTC',$created_at)),
dbesc(datetime_convert()),
dbesc($subject),
dbesc($participant_handles)
);
if($r)
$c = q("select * from conv where uid = %d and guid = '%s' limit 1",
intval($importer['uid']),
dbesc($guid)
);
if(count($c))
$conversation = $c[0];
}
if(! $conversation) {
logger('diaspora_conversation: unable to create conversation.');
return;
}
foreach($messages as $mesg) {
$reply = 0;
$msg_guid = notags(unxmlify($mesg->guid));
$msg_parent_guid = notags(unxmlify($mesg->parent_guid));
$msg_parent_author_signature = notags(unxmlify($mesg->parent_author_signature));
$msg_author_signature = notags(unxmlify($mesg->author_signature));
$msg_text = unxmlify($mesg->text);
$msg_created_at = datetime_convert('UTC','UTC',notags(unxmlify($mesg->created_at)));
$msg_diaspora_handle = notags(unxmlify($mesg->diaspora_handle));
$msg_conversation_guid = notags(unxmlify($mesg->conversation_guid));
if($msg_conversation_guid != $guid) {
logger('diaspora_conversation: message conversation guid does not belong to the current conversation. ' . $xml);
continue;
}
$body = diaspora2bb($msg_text);
$message_id = $msg_diaspora_handle . ':' . $msg_guid;
$author_signed_data = $msg_guid . ';' . $msg_parent_guid . ';' . $msg_text . ';' . unxmlify($mesg->created_at) . ';' . $msg_diaspora_handle . ';' . $msg_conversation_guid;
$author_signature = base64_decode($msg_author_signature);
if(strcasecmp($msg_diaspora_handle,$msg['author']) == 0) {
$person = $contact;
$key = $msg['key'];
}
else {
$person = find_diaspora_person_by_handle($msg_diaspora_handle);
if(is_array($person) && x($person,'pubkey'))
$key = $person['pubkey'];
else {
logger('diaspora_conversation: unable to find author details');
continue;
}
}
if(! rsa_verify($author_signed_data,$author_signature,$key,'sha256')) {
logger('diaspora_conversation: verification failed.');
continue;
}
if($msg_parent_author_signature) {
$owner_signed_data = $msg_guid . ';' . $msg_parent_guid . ';' . $msg_text . ';' . unxmlify($mesg->created_at) . ';' . $msg_diaspora_handle . ';' . $msg_conversation_guid;
$parent_author_signature = base64_decode($msg_parent_author_signature);
$key = $msg['key'];
if(! rsa_verify($owner_signed_data,$parent_author_signature,$key,'sha256')) {
logger('diaspora_conversation: owner verification failed.');
continue;
}
}
$r = q("select id from mail where `uri` = '%s' limit 1",
dbesc($message_id)
);
if(count($r)) {
logger('diaspora_conversation: duplicate message already delivered.', LOGGER_DEBUG);
continue;
}
q("insert into mail ( `uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`) values ( %d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
intval($importer['uid']),
dbesc($msg_guid),
intval($conversation['id']),
dbesc($person['name']),
dbesc($person['photo']),
dbesc($person['url']),
intval($contact['id']),
dbesc($subject),
dbesc($body),
0,
0,
dbesc($message_id),
dbesc($parent_uri),
dbesc($msg_created_at)
);
q("update conv set updated = '%s' where id = %d",
dbesc(datetime_convert()),
intval($conversation['id'])
);
notification(array(
'type' => NOTIFY_MAIL,
'notify_flags' => $importer['notify-flags'],
'language' => $importer['language'],
'to_name' => $importer['username'],
'to_email' => $importer['email'],
'uid' =>$importer['uid'],
'item' => array('subject' => $subject, 'body' => $body),
'source_name' => $person['name'],
'source_link' => $person['url'],
'source_photo' => $person['thumb'],
'verb' => ACTIVITY_POST,
'otype' => 'mail'
));
}
*/
return true;
}
private function construct_like_body($contact, $parent_item, $guid) {
$bodyverb = t('%1$s likes %2$s\'s %3$s');
$ulink = "[url=".$contact["url"]."]".$contact["name"]."[/url]";
$alink = "[url=".$parent_item["author-link"]."]".$parent_item["author-name"]."[/url]";
$plink = "[url=".App::get_baseurl()."/display/".urlencode($guid)."]".t("status")."[/url]";
return sprintf($bodyverb, $ulink, $alink, $plink);
}
private function construct_like_object($importer, $parent_item) {
$objtype = ACTIVITY_OBJ_NOTE;
$link = xmlify('<link rel="alternate" type="text/html" href="'.App::get_baseurl()."/display/".$importer["nickname"]."/".$parent_item["id"].'" />'."\n") ;
$parent_body = $parent_item["body"];
$obj = <<< EOT
<object>
<type>$objtype</type>
<local>1</local>
<id>{$parent_item["uri"]}</id>
<link>$link</link>
<title></title>
<content>$parent_body</content>
</object>
EOT;
return $obj;
}
private function import_like($importer, $sender, $data) {
$positive = notags(unxmlify($data->positive));
$guid = notags(unxmlify($data->guid));
$parent_type = notags(unxmlify($data->parent_type));
$parent_guid = notags(unxmlify($data->parent_guid));
$author = notags(unxmlify($data->author));
// likes on comments aren't supported by Diaspora - only on posts
if ($parent_type !== "Post")
return false;
// "positive" = "false" doesn't seem to be supported by Diaspora
if ($positive === "false") {
logger("Received a like with positive set to 'false' - this shouldn't exist at all");
return false;
}
$contact = self::get_allowed_contact_by_handle($importer, $sender, true);
if (!$contact)
return false;
if (self::message_exists($importer["uid"], $guid))
return false;
$parent_item = self::fetch_parent_item($importer["uid"], $parent_guid, $author, $contact);
if (!$parent_item)
return false;
$person = self::get_person_by_handle($author);
if (!is_array($person)) {
logger("unable to find author details");
return false;
}
// Fetch the contact id - if we know this contact
$author_contact = self::get_author_contact_by_url($contact, $person, $importer["uid"]);
$datarray = array();
$datarray["uid"] = $importer["uid"];
$datarray["contact-id"] = $author_contact["cid"];
$datarray["network"] = $author_contact["network"];
$datarray["author-name"] = $person["name"];
$datarray["author-link"] = $person["url"];
$datarray["author-avatar"] = ((x($person,"thumb")) ? $person["thumb"] : $person["photo"]);
$datarray["owner-name"] = $contact["name"];
$datarray["owner-link"] = $contact["url"];
$datarray["owner-avatar"] = ((x($contact,"thumb")) ? $contact["thumb"] : $contact["photo"]);
$datarray["guid"] = $guid;
$datarray["uri"] = $author.":".$guid;
$datarray["type"] = "activity";
$datarray["verb"] = ACTIVITY_LIKE;
$datarray["gravity"] = GRAVITY_LIKE;
$datarray["parent-uri"] = $parent_item["uri"];
$datarray["object-type"] = ACTIVITY_OBJ_NOTE;
$datarray["object"] = self::construct_like_object($importer, $parent_item);
$datarray["body"] = self::construct_like_body($contact, $parent_item, $guid);
$message_id = item_store($datarray);
//print_r($datarray);
// If we are the origin of the parent we store the original data and notify our followers
if($message_id AND $parent_item["origin"]) {
// Formerly we stored the signed text, the signature and the author in different fields.
// The new Diaspora protocol can have variable fields. We now store the data in correct order in a single field.
q("INSERT INTO `sign` (`iid`,`signed_text`) VALUES (%d,'%s')",
intval($message_id),
dbesc(json_encode($data))
);
// notify others
proc_run("php", "include/notifier.php", "comment-import", $message_id);
}
return $message_id;
}
private function import_message($importer, $data) {
$guid = notags(unxmlify($data->guid));
$parent_guid = notags(unxmlify($data->parent_guid));
$text = unxmlify($data->text);
$created_at = datetime_convert("UTC", "UTC", notags(unxmlify($data->created_at)));
$author = notags(unxmlify($data->author));
$conversation_guid = notags(unxmlify($data->conversation_guid));
$parent_uri = $author.":".$parent_guid;
$contact = self::get_allowed_contact_by_handle($importer, $author, true);
if (!$contact)
return false;
$conversation = null;
$c = q("SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
intval($importer["uid"]),
dbesc($conversation_guid)
);
if(count($c))
$conversation = $c[0];
else {
logger("conversation not available.");
return false;
}
$reply = 0;
$body = diaspora2bb($text);
$message_id = $author.":".$guid;
$person = self::get_person_by_handle($author);
if (!$person) {
logger("unable to find author details");
return false;
}
$r = q("SELECT `id` FROM `mail` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
dbesc($message_id),
intval($importer["uid"])
);
if(count($r)) {
logger("duplicate message already delivered.", LOGGER_DEBUG);
return false;
}
q("INSERT INTO `mail` (`uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`)
VALUES ( %d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
intval($importer["uid"]),
dbesc($guid),
intval($conversation["id"]),
dbesc($person["name"]),
dbesc($person["photo"]),
dbesc($person["url"]),
intval($contact["id"]),
dbesc($conversation["subject"]),
dbesc($body),
0,
1,
dbesc($message_id),
dbesc($parent_uri),
dbesc($created_at)
);
q("UPDATE `conv` SET `updated` = '%s' WHERE `id` = %d",
dbesc(datetime_convert()),
intval($conversation["id"])
);
return true;
}
private function import_participation($importer, $data) {
// I'm not sure if we can fully support this message type
return true;
}
private function import_photo($importer, $data) {
// There doesn't seem to be a reason for this function, since the photo data is transmitted in the status message as well
return true;
}
private function import_poll_participation($importer, $data) {
// We don't support polls by now
return true;
}
private function import_profile($importer, $data) {
$author = notags(unxmlify($data->author));
$contact = self::get_contact_by_handle($importer["uid"], $author);
if (!$contact)
return;
$name = unxmlify($data->first_name).((strlen($data->last_name)) ? " ".unxmlify($data->last_name) : "");
$image_url = unxmlify($data->image_url);
$birthday = unxmlify($data->birthday);
$location = diaspora2bb(unxmlify($data->location));
$about = diaspora2bb(unxmlify($data->bio));
$gender = unxmlify($data->gender);
$searchable = (unxmlify($data->searchable) == "true");
$nsfw = (unxmlify($data->nsfw) == "true");
$tags = unxmlify($data->tag_string);
$tags = explode("#", $tags);
$keywords = array();
foreach ($tags as $tag) {
$tag = trim(strtolower($tag));
if ($tag != "")
$keywords[] = $tag;
}
$keywords = implode(", ", $keywords);
$handle_parts = explode("@", $author);
$nick = $handle_parts[0];
if($name === "")
$name = $handle_parts[0];
if( preg_match("|^https?://|", $image_url) === 0)
$image_url = "http://".$handle_parts[1].$image_url;
update_contact_avatar($image_url, $importer["uid"], $contact["id"]);
// Generic birthday. We don't know the timezone. The year is irrelevant.
$birthday = str_replace("1000", "1901", $birthday);
if ($birthday != "")
$birthday = datetime_convert("UTC", "UTC", $birthday, "Y-m-d");
// this is to prevent multiple birthday notifications in a single year
// if we already have a stored birthday and the 'm-d' part hasn't changed, preserve the entry, which will preserve the notify year
if(substr($birthday,5) === substr($contact["bd"],5))
$birthday = $contact["bd"];
$r = q("UPDATE `contact` SET `name` = '%s', `nick` = '%s', `addr` = '%s', `name-date` = '%s', `bd` = '%s',
`location` = '%s', `about` = '%s', `keywords` = '%s', `gender` = '%s' WHERE `id` = %d AND `uid` = %d",
dbesc($name),
dbesc($nick),
dbesc($author),
dbesc(datetime_convert()),
dbesc($birthday),
dbesc($location),
dbesc($about),
dbesc($keywords),
dbesc($gender),
intval($contact["id"]),
intval($importer["uid"])
);
if ($searchable) {
poco_check($contact["url"], $name, NETWORK_DIASPORA, $image_url, $about, $location, $gender, $keywords, "",
datetime_convert(), 2, $contact["id"], $importer["uid"]);
}
$gcontact = array("url" => $contact["url"], "network" => NETWORK_DIASPORA, "generation" => 2,
"photo" => $image_url, "name" => $name, "location" => $location,
"about" => $about, "birthday" => $birthday, "gender" => $gender,
"addr" => $author, "nick" => $nick, "keywords" => $keywords,
"hide" => !$searchable, "nsfw" => $nsfw);
update_gcontact($gcontact);
return true;
}
private function import_request($importer, $data) {
print_r($data);
/*
$author = unxmlify($xml->author);
$recipient = unxmlify($xml->recipient);
if (!$author || !$recipient)
return;
$contact = self::get_contact_by_handle($importer["uid"],$author);
if($contact) {
// perhaps we were already sharing with this person. Now they're sharing with us.
// That makes us friends.
if($contact["rel"] == CONTACT_IS_FOLLOWER && in_array($importer["page-flags"], array(PAGE_FREELOVE))) {
q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d",
intval(CONTACT_IS_FRIEND),
intval($contact["id"]),
intval($importer["uid"])
);
}
// send notification
$r = q("SELECT `hide-friends` FROM `profile` WHERE `uid` = %d AND `is-default` = 1 LIMIT 1",
intval($importer["uid"])
);
if((count($r)) && (!$r[0]["hide-friends"]) && (!$contact["hidden"]) && intval(get_pconfig($importer["uid"],'system','post_newfriend'))) {
$self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
intval($importer["uid"])
);
// they are not CONTACT_IS_FOLLOWER anymore but that's what we have in the array
if(count($self) && $contact["rel"] == CONTACT_IS_FOLLOWER) {
$arr = array();
$arr["uri"] = $arr["parent-uri"] = item_new_uri(App::get_hostname(), $importer["uid"]);
$arr["uid"] = $importer["uid"];
$arr["contact-id"] = $self[0]["id"];
$arr["wall"] = 1;
$arr["type"] = 'wall';
$arr["gravity"] = 0;
$arr["origin"] = 1;
$arr["author-name"] = $arr["owner-name"] = $self[0]["name"];
$arr["author-link"] = $arr["owner-link"] = $self[0]["url"];
$arr["author-avatar"] = $arr["owner-avatar"] = $self[0]["thumb"];
$arr["verb"] = ACTIVITY_FRIEND;
$arr["object-type"] = ACTIVITY_OBJ_PERSON;
$A = '[url=' . $self[0]["url"] . "]' . $self[0]["name"] . '[/url]';
$B = '[url=' . $contact["url"] . "]' . $contact["name"] . '[/url]';
$BPhoto = '[url=' . $contact["url"] . "]' . '[img]' . $contact["thumb"] . '[/img][/url]';
$arr["body"] = sprintf( t('%1$s is now friends with %2$s'), $A, $B)."\n\n\n".$Bphoto;
$arr["object"] = '<object><type>' . ACTIVITY_OBJ_PERSON . '</type><title>' . $contact["name"] . '</title>'
. '<id>' . $contact["url"] . '/' . $contact["name"] . '</id>';
$arr["object"] .= '<link>' . xmlify('<link rel="alternate" type="text/html" href="' . $contact["url"] . '" />' . "\n")
;
$arr["object"] .= xmlify('<link rel="photo" type="image/jpeg" href="' . $contact["thumb"] . '" />' . "\n");
$arr["object"] .= '</link></object>' . "\n";
$arr["last-child"] = 1;
$arr["allow_cid"] = $user[0]["allow_cid"];
$arr["allow_gid"] = $user[0]["allow_gid"];
$arr["deny_cid"] = $user[0]["deny_cid"];
$arr["deny_gid"] = $user[0]["deny_gid"];
$i = item_store($arr);
if($i)
proc_run('php',"include/notifier.php","activity","$i");
}
}
return;
}
$ret = self::get_person_by_handle($author);
if((! count($ret)) || ($ret["network"] != NETWORK_DIASPORA)) {
logger('diaspora_request: Cannot resolve diaspora handle ' . $author . ' for ' . $recipient);
return;
}
$batch = (($ret["batch"]) ? $ret["batch"] : implode('/', array_slice(explode('/',$ret["url"]),0,3)) . '/receive/public');
$r = q("INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`nurl`,`batch`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`)
VALUES ( %d, '%s', '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s','%s',%d,%d) ",
intval($importer["uid"]),
dbesc($ret["network"]),
dbesc($ret["addr"]),
datetime_convert(),
dbesc($ret["url"]),
dbesc(normalise_link($ret["url"])),
dbesc($batch),
dbesc($ret["name"]),
dbesc($ret["nick"]),
dbesc($ret["photo"]),
dbesc($ret["pubkey"]),
dbesc($ret["notify"]),
dbesc($ret["poll"]),
1,
2
);
// find the contact record we just created
$contact_record = diaspora_get_contact_by_handle($importer["uid"],$author);
if(! $contact_record) {
logger('diaspora_request: unable to locate newly created contact record.');
return;
}
$g = q("select def_gid from user where uid = %d limit 1",
intval($importer["uid"])
);
if($g && intval($g[0]["def_gid"])) {
group_add_member($importer["uid"],'',$contact_record["id"],$g[0]["def_gid"]);
}
if($importer["page-flags"] == PAGE_NORMAL) {
$hash = random_string() . (string) time(); // Generate a confirm_key
$ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime` )
VALUES ( %d, %d, %d, %d, '%s', '%s', '%s' )",
intval($importer["uid"]),
intval($contact_record["id"]),
0,
0,
dbesc( t('Sharing notification from Diaspora network')),
dbesc($hash),
dbesc(datetime_convert())
);
}
else {
// automatic friend approval
update_contact_avatar($contact_record["photo"],$importer["uid"],$contact_record["id"]);
// technically they are sharing with us (CONTACT_IS_SHARING),
// but if our page-type is PAGE_COMMUNITY or PAGE_SOAPBOX
// we are going to change the relationship and make them a follower.
if($importer["page-flags"] == PAGE_FREELOVE)
$new_relation = CONTACT_IS_FRIEND;
else
$new_relation = CONTACT_IS_FOLLOWER;
$r = q("UPDATE `contact` SET `rel` = %d,
`name-date` = '%s',
`uri-date` = '%s',
`blocked` = 0,
`pending` = 0,
`writable` = 1
WHERE `id` = %d
",
intval($new_relation),
dbesc(datetime_convert()),
dbesc(datetime_convert()),
intval($contact_record["id"])
);
$u = q("select * from user where uid = %d limit 1",intval($importer["uid"]));
if($u)
$ret = diaspora_share($u[0],$contact_record);
}
*/
return true;
}
private function get_original_item($guid, $orig_author, $author) {
// Do we already have this item?
$r = q("SELECT `body`, `tag`, `app`, `created`, `object-type`, `uri`, `guid`,
`author-name`, `author-link`, `author-avatar`
FROM `item` WHERE `guid` = '%s' AND `visible` AND NOT `deleted` AND `body` != '' LIMIT 1",
dbesc($guid));
if(count($r)) {
logger("reshared message ".$guid." already exists on system.");
// Maybe it is already a reshared item?
// Then refetch the content, since there can be many side effects with reshared posts from other networks or reshares from reshares
if (api_share_as_retweet($r[0]))
$r = array();
else
return $r[0];
}
if (!count($r)) {
$server = 'https://'.substr($orig_author,strpos($orig_author,'@')+1);
logger("1st try: reshared message ".$guid." will be fetched from original server: ".$server);
$item_id = self::store_by_guid($guid, $server);
if (!$item_id) {
$server = 'https://'.substr($author,strpos($author,'@')+1);
logger("2nd try: reshared message ".$guid." will be fetched from sharer's server: ".$server);
$item = self::store_by_guid($guid, $server);
}
if (!$item_id) {
$server = 'http://'.substr($orig_author,strpos($orig_author,'@')+1);
logger("3rd try: reshared message ".$guid." will be fetched from original server: ".$server);
$item = self::store_by_guid($guid, $server);
}
if (!$item_id) {
$server = 'http://'.substr($author,strpos($author,'@')+1);
logger("4th try: reshared message ".$guid." will be fetched from sharer's server: ".$server);
$item = self::store_by_guid($guid, $server);
}
if ($item_id) {
$r = q("SELECT `body`, `tag`, `app`, `created`, `object-type`, `uri`, `guid`,
`author-name`, `author-link`, `author-avatar`
FROM `item` WHERE `id` = %d AND `visible` AND NOT `deleted` AND `body` != '' LIMIT 1",
intval($item_id));
if ($r)
return $r[0];
}
}
return false;
}
private function import_reshare($importer, $data) {
$root_author = notags(unxmlify($data->root_author));
$root_guid = notags(unxmlify($data->root_guid));
$guid = notags(unxmlify($data->guid));
$author = notags(unxmlify($data->author));
$public = notags(unxmlify($data->public));
$created_at = notags(unxmlify($data->created_at));
$contact = self::get_allowed_contact_by_handle($importer, $author, false);
if (!$contact)
return false;
// if (self::message_exists($importer["uid"], $guid))
// return false;
$original_item = self::get_original_item($root_guid, $root_author, $author);
if (!$original_item)
return false;
$datarray = array();
$datarray["uid"] = $importer["uid"];
$datarray["contact-id"] = $contact["id"];
$datarray["network"] = NETWORK_DIASPORA;
$datarray["author-name"] = $contact["name"];
$datarray["author-link"] = $contact["url"];
$datarray["author-avatar"] = ((x($contact,"thumb")) ? $contact["thumb"] : $contact["photo"]);
$datarray["owner-name"] = $datarray["author-name"];
$datarray["owner-link"] = $datarray["author-link"];
$datarray["owner-avatar"] = $datarray["author-avatar"];
$datarray["guid"] = $guid;
$datarray["uri"] = $datarray["parent-uri"] = $author.":".$guid;
$datarray["verb"] = ACTIVITY_POST;
$datarray["gravity"] = GRAVITY_PARENT;
$datarray["object"] = json_encode($data);
$prefix = share_header($original_item["author-name"], $original_item["author-link"], $original_item["author-avatar"],
$original_item["guid"], $original_item["created"], $original_item["uri"]);
$datarray["body"] = $prefix.$original_item["body"]."[/share]";
$datarray["tag"] = $original_item["tag"];
$datarray["app"] = $original_item["app"];
$datarray["plink"] = self::plink($author, $guid);
$datarray["private"] = (($public == "false") ? 1 : 0);
$datarray["changed"] = $datarray["created"] = $datarray["edited"] = datetime_convert("UTC", "UTC", $created_at);
$datarray["object-type"] = $original_item["object-type"];
self::fetch_guid($datarray);
//$message_id = item_store($datarray);
print_r($datarray);
return $message_id;
}
private function import_retraction($importer, $data) {
return true;
}
private function import_status_message($importer, $data) {
$raw_message = unxmlify($data->raw_message);
$guid = notags(unxmlify($data->guid));
$author = notags(unxmlify($data->author));
$public = notags(unxmlify($data->public));
$created_at = notags(unxmlify($data->created_at));
$provider_display_name = notags(unxmlify($data->provider_display_name));
$contact = self::get_allowed_contact_by_handle($importer, $author, false);
if (!$contact)
return false;
if (self::message_exists($importer["uid"], $guid))
return false;
/// @todo enable support for polls
// if ($data->poll) {
// print_r($data->poll);
// die("poll!\n");
// }
$address = array();
if ($data->location)
foreach ($data->location->children() AS $fieldname => $data)
$address[$fieldname] = notags(unxmlify($data));
$body = diaspora2bb($raw_message);
if ($data->photo)
for ($i = 0; $i < count($data->photo); $i++)
$body = "[img]".$data->photo[$i]->remote_photo_path.$data->photo[$i]->remote_photo_name."[/img]\n".$body;
$datarray = array();
if($data->photo->remote_photo_path AND $data->photo->remote_photo_name)
$datarray["object-type"] = ACTIVITY_OBJ_PHOTO;
else {
$datarray["object-type"] = ACTIVITY_OBJ_NOTE;
// Add OEmbed and other information to the body
if (!self::is_redmatrix($contact["url"]))
$body = add_page_info_to_body($body, false, true);
}
$str_tags = "";
$cnt = preg_match_all("/@\[url=(.*?)\[\/url\]/ism", $body, $matches, PREG_SET_ORDER);
if($cnt) {
foreach($matches as $mtch) {
if(strlen($str_tags))
$str_tags .= ",";
$str_tags .= "@[url=".$mtch[1]."[/url]";
}
}
$datarray["uid"] = $importer["uid"];
$datarray["contact-id"] = $contact["id"];
$datarray["network"] = NETWORK_DIASPORA;
$datarray["author-name"] = $contact["name"];
$datarray["author-link"] = $contact["url"];
$datarray["author-avatar"] = ((x($contact,"thumb")) ? $contact["thumb"] : $contact["photo"]);
$datarray["owner-name"] = $datarray["author-name"];
$datarray["owner-link"] = $datarray["author-link"];
$datarray["owner-avatar"] = $datarray["author-avatar"];
$datarray["guid"] = $guid;
$datarray["uri"] = $datarray["parent-uri"] = $author.":".$guid;
$datarray["verb"] = ACTIVITY_POST;
$datarray["gravity"] = GRAVITY_PARENT;
$datarray["object"] = json_encode($data);
$datarray["body"] = $body;
$datarray["tag"] = $str_tags;
if ($provider_display_name != "")
$datarray["app"] = $provider_display_name;
$datarray["plink"] = self::plink($author, $guid);
$datarray["private"] = (($public == "false") ? 1 : 0);
$datarray["changed"] = $datarray["created"] = $datarray["edited"] = datetime_convert("UTC", "UTC", $created_at);
if (isset($address["address"]))
$datarray["location"] = $address["address"];
if (isset($address["lat"]) AND isset($address["lng"]))
$datarray["coord"] = $address["lat"]." ".$address["lng"];
self::fetch_guid($datarray);
//$message_id = item_store($datarray);
print_r($datarray);
logger("Stored item with message id ".$message_id, LOGGER_DEBUG);
return $message_id;
}
}
?>
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