-<?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/xml.php");
-require_once("include/datetime.php");
-
-/**
- * @brief This class contain functions to create and send Diaspora XML files
- *
- */
-class diaspora {
-
- public static function relay_list() {
-
- $serverdata = get_config("system", "relay_server");
- if ($serverdata == "")
- return array();
-
- $relay = array();
-
- $servers = explode(",", $serverdata);
-
- foreach($servers AS $server) {
- $server = trim($server);
- $batch = $server."/receive/public";
-
- $relais = q("SELECT `batch`, `id`, `name`,`network` FROM `contact` WHERE `uid` = 0 AND `batch` = '%s' LIMIT 1", dbesc($batch));
-
- if (!$relais) {
- $addr = "relay@".str_replace("http://", "", normalise_link($server));
-
- $r = q("INSERT INTO `contact` (`uid`, `created`, `name`, `nick`, `addr`, `url`, `nurl`, `batch`, `network`, `rel`, `blocked`, `pending`, `writable`, `name-date`, `uri-date`, `avatar-date`)
- VALUES (0, '%s', '%s', 'relay', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 1, '%s', '%s', '%s')",
- datetime_convert(),
- dbesc($addr),
- dbesc($addr),
- dbesc($server),
- dbesc(normalise_link($server)),
- dbesc($batch),
- dbesc(NETWORK_DIASPORA),
- intval(CONTACT_IS_FOLLOWER),
- dbesc(datetime_convert()),
- dbesc(datetime_convert()),
- dbesc(datetime_convert())
- );
-
- $relais = q("SELECT `batch`, `id`, `name`,`network` FROM `contact` WHERE `uid` = 0 AND `batch` = '%s' LIMIT 1", dbesc($batch));
- if ($relais)
- $relay[] = $relais[0];
- } else
- $relay[] = $relais[0];
- }
-
- return $relay;
- }
-
- function repair_signature($signature, $handle = "", $level = 1) {
-
- if ($signature == "")
- return ($signature);
-
- if (base64_encode(base64_decode(base64_decode($signature))) == base64_decode($signature)) {
- $signature = base64_decode($signature);
- logger("Repaired double encoded signature from Diaspora/Hubzilla handle ".$handle." - level ".$level, LOGGER_DEBUG);
-
- // Do a recursive call to be able to fix even multiple levels
- if ($level < 10)
- $signature = self::repair_signature($signature, $handle, ++$level);
- }
-
- return($signature);
- }
-
- /**
- * @brief: Decodes incoming Diaspora message
- *
- * @param array $importer from user table
- * @param string $xml urldecoded Diaspora salmon
- *
- * @return array
- * 'message' -> decoded Diaspora XML message
- * 'author' -> author diaspora handle
- * 'key' -> author public key (converted to pkcs#8)
- */
- function decode($importer, $xml) {
-
- $public = false;
- $basedom = parse_xml_string($xml);
-
- if (!is_object($basedom))
- return false;
-
- $children = $basedom->children('https://joindiaspora.com/protocol');
-
- if($children->header) {
- $public = true;
- $author_link = str_replace('acct:','',$children->header->author_id);
- } else {
-
- $encrypted_header = json_decode(base64_decode($children->encrypted_header));
-
- $encrypted_aes_key_bundle = base64_decode($encrypted_header->aes_key);
- $ciphertext = base64_decode($encrypted_header->ciphertext);
-
- $outer_key_bundle = '';
- openssl_private_decrypt($encrypted_aes_key_bundle,$outer_key_bundle,$importer['prvkey']);
-
- $j_outer_key_bundle = json_decode($outer_key_bundle);
-
- $outer_iv = base64_decode($j_outer_key_bundle->iv);
- $outer_key = base64_decode($j_outer_key_bundle->key);
-
- $decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $outer_key, $ciphertext, MCRYPT_MODE_CBC, $outer_iv);
-
-
- $decrypted = pkcs5_unpad($decrypted);
-
- /**
- * $decrypted now contains something like
- *
- * <decrypted_header>
- * <iv>8e+G2+ET8l5BPuW0sVTnQw==</iv>
- * <aes_key>UvSMb4puPeB14STkcDWq+4QE302Edu15oaprAQSkLKU=</aes_key>
- * <author_id>galaxor@diaspora.priateship.org</author_id>
- * </decrypted_header>
- */
-
- logger('decrypted: '.$decrypted, LOGGER_DEBUG);
- $idom = parse_xml_string($decrypted,false);
-
- $inner_iv = base64_decode($idom->iv);
- $inner_aes_key = base64_decode($idom->aes_key);
-
- $author_link = str_replace('acct:','',$idom->author_id);
- }
-
- $dom = $basedom->children(NAMESPACE_SALMON_ME);
-
- // figure out where in the DOM tree our data is hiding
-
- if($dom->provenance->data)
- $base = $dom->provenance;
- elseif($dom->env->data)
- $base = $dom->env;
- elseif($dom->data)
- $base = $dom;
-
- if (!$base) {
- logger('unable to locate salmon data in xml');
- http_status_exit(400);
- }
-
-
- // Stash the signature away for now. We have to find their key or it won't be good for anything.
- $signature = base64url_decode($base->sig);
-
- // unpack the data
-
- // strip whitespace so our data element will return to one big base64 blob
- $data = str_replace(array(" ","\t","\r","\n"),array("","","",""),$base->data);
-
-
- // stash away some other stuff for later
-
- $type = $base->data[0]->attributes()->type[0];
- $keyhash = $base->sig[0]->attributes()->keyhash[0];
- $encoding = $base->encoding;
- $alg = $base->alg;
-
-
- $signed_data = $data.'.'.base64url_encode($type).'.'.base64url_encode($encoding).'.'.base64url_encode($alg);
-
-
- // decode the data
- $data = base64url_decode($data);
-
-
- if($public)
- $inner_decrypted = $data;
- else {
-
- // Decode the encrypted blob
-
- $inner_encrypted = base64_decode($data);
- $inner_decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $inner_encrypted, MCRYPT_MODE_CBC, $inner_iv);
- $inner_decrypted = pkcs5_unpad($inner_decrypted);
- }
-
- if (!$author_link) {
- logger('Could not retrieve author URI.');
- http_status_exit(400);
- }
- // Once we have the author URI, go to the web and try to find their public key
- // (first this will look it up locally if it is in the fcontact cache)
- // This will also convert diaspora public key from pkcs#1 to pkcs#8
-
- logger('Fetching key for '.$author_link);
- $key = self::key($author_link);
-
- if (!$key) {
- logger('Could not retrieve author key.');
- http_status_exit(400);
- }
-
- $verify = rsa_verify($signed_data,$signature,$key);
-
- if (!$verify) {
- logger('Message did not verify. Discarding.');
- http_status_exit(400);
- }
-
- logger('Message verified.');
-
- return array('message' => $inner_decrypted, 'author' => $author_link, 'key' => $key);
-
- }
-
-
- /**
- * @brief Dispatches public messages and find the fitting receivers
- *
- * @param array $msg The post that will be dispatched
- *
- * @return bool Was the message accepted?
- */
- public static function dispatch_public($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($r) {
- foreach($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;
- }
-
- /**
- * @brief Dispatches the different message types to the different functions
- *
- * @param array $importer Array of the importer user
- * @param array $msg The post that will be dispatched
- *
- * @return bool Was the message accepted?
- */
- public static function dispatch($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 = $fields->getName();
-
- logger("Received message type ".$type." from ".$sender." for user ".$importer["uid"], LOGGER_DEBUG);
-
- switch ($type) {
- case "account_deletion":
- return self::receive_account_deletion($importer, $fields);
-
- case "comment":
- return self::receive_comment($importer, $sender, $fields);
-
- case "conversation":
- return self::receive_conversation($importer, $msg, $fields);
-
- case "like":
- return self::receive_like($importer, $sender, $fields);
-
- case "message":
- return self::receive_message($importer, $fields);
-
- case "participation": // Not implemented
- return self::receive_participation($importer, $fields);
-
- case "photo": // Not implemented
- return self::receive_photo($importer, $fields);
-
- case "poll_participation": // Not implemented
- return self::receive_poll_participation($importer, $fields);
-
- case "profile":
- return self::receive_profile($importer, $fields);
-
- case "request":
- return self::receive_request($importer, $fields);
-
- case "reshare":
- return self::receive_reshare($importer, $fields);
-
- case "retraction":
- return self::receive_retraction($importer, $sender, $fields);
-
- case "status_message":
- return self::receive_status_message($importer, $fields);
-
- default:
- logger("Unknown message type ".$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();
- $orig_type = $type;
-
- // All retractions are handled identically from now on.
- // In the new version there will only be "retraction".
- if (in_array($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")) OR
- ($orig_type == "relayable_retraction"))
- xml::copy($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", "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)) {
- $key = self::key($msg["author"]);
-
- if (!rsa_verify($signed_data, $parent_author_signature, $key, "sha256"))
- return false;
- }
-
- $key = self::key($fields->author);
-
- return rsa_verify($signed_data, $author_signature, $key, "sha256");
- }
-
- /**
- * @brief Fetches the public key for a given handle
- *
- * @param string $handle The handle
- *
- * @return string The public key
- */
- private function key($handle) {
- $handle = strval($handle);
-
- logger("Fetching diaspora key for: ".$handle);
-
- $r = self::person_by_handle($handle);
- if($r)
- return $r["pubkey"];
-
- return "";
- }
-
- /**
- * @brief Fetches data for a given handle
- *
- * @param string $handle The handle
- *
- * @return array the queried data
- */
- private function person_by_handle($handle) {
-
- $r = q("SELECT * FROM `fcontact` WHERE `network` = '%s' AND `addr` = '%s' LIMIT 1",
- dbesc(NETWORK_DIASPORA),
- dbesc($handle)
- );
- if ($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 ($r AND ($r["network"] === NETWORK_DIASPORA)) {
- self::add_fcontact($r, $update);
- $person = $r;
- }
- }
- return $person;
- }
-
- /**
- * @brief Updates the fcontact table
- *
- * @param array $arr The fcontact data
- * @param bool $update Update or insert?
- *
- * @return string The id of the fcontact entry
- */
- private function add_fcontact($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 $r;
- }
-
- public static function handle_from_contact($contact_id) {
- $handle = False;
-
- logger("contact id is ".$contact_id, LOGGER_DEBUG);
-
- $r = q("SELECT `network`, `addr`, `self`, `url`, `nick` FROM `contact` WHERE `id` = %d",
- intval($contact_id)
- );
- if($r) {
- $contact = $r[0];
-
- logger("contact 'self' = ".$contact['self']." 'url' = ".$contact['url'], LOGGER_DEBUG);
-
- if($contact['addr'] != "")
- $handle = $contact['addr'];
- elseif(($contact['network'] === NETWORK_DFRN) || ($contact['self'] == 1)) {
- $baseurl_start = strpos($contact['url'],'://') + 3;
- $baseurl_length = strpos($contact['url'],'/profile') - $baseurl_start; // allows installations in a subdirectory--not sure how Diaspora will handle
- $baseurl = substr($contact['url'], $baseurl_start, $baseurl_length);
- $handle = $contact['nick'].'@'.$baseurl;
- }
- }
-
- return $handle;
- }
-
- private function contact_by_handle($uid, $handle) {
- $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `addr` = '%s' LIMIT 1",
- intval($uid),
- dbesc($handle)
- );
-
- if ($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)
- 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 allowed_contact_by_handle($importer, $handle, $is_comment = false) {
- $contact = self::contact_by_handle($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, $is_comment)) {
- logger("The handle: ".$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($guid)
- );
-
- if($r) {
- logger("message ".$guid." already exists for user ".$uid);
- return true;
- }
-
- return false;
- }
-
- 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);
-
- $msg = self::message($guid, $server);
-
- if (!$msg)
- return false;
-
- logger("Successfully fetched item ".$guid." from ".$server, LOGGER_DEBUG);
-
- // Now call the dispatcher
- return self::dispatch_public($msg);
- }
-
- private function message($guid, $server, $level = 0) {
-
- if ($level > 5)
- return false;
-
- // This will work for Diaspora and newer Friendica servers
- $source_url = $server."/p/".$guid.".xml";
- $x = fetch_url($source_url);
- if(!$x)
- return false;
-
- $source_xml = parse_xml_string($x, false);
-
- if (!is_object($source_xml))
- return false;
-
- if ($source_xml->post->reshare) {
- // Reshare of a reshare - old Diaspora version
- return self::message($source_xml->post->reshare->root_guid, $server, ++$level);
- } elseif ($source_xml->getName() == "reshare") {
- // Reshare of a reshare - new Diaspora version
- return self::message($source_xml->root_guid, $server, ++$level);
- }
-
- $author = "";
-
- // Fetch the author - for the old and the new Diaspora version
- if ($source_xml->post->status_message->diaspora_handle)
- $author = (string)$source_xml->post->status_message->diaspora_handle;
- elseif ($source_xml->author AND ($source_xml->getName() == "status_message"))
- $author = (string)$source_xml->author;
-
- // If this isn't a "status_message" then quit
- if (!$author)
- return false;
-
- $msg = array("message" => $x, "author" => $author);
-
- $msg["key"] = self::key($msg["author"]);
-
- return $msg;
- }
-
- private function parent_item($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($guid));
-
- if(!$r) {
- $result = self::store_by_guid($guid, $contact["url"], $uid);
-
- if (!$result) {
- $person = self::person_by_handle($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($guid));
- }
- }
-
- if (!$r) {
- logger("parent item not found: parent: ".$guid." - user: ".$uid);
- return false;
- } else {
- logger("parent item found: parent: ".$guid." - user: ".$uid);
- return $r[0];
- }
- }
-
- private function author_contact_by_url($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/".$guid;
- }
-
- private function receive_account_deletion($importer, $data) {
- $author = notags(unxmlify($data->author));
-
- $contact = self::contact_by_handle($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 receive_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));
-
- $contact = self::allowed_contact_by_handle($importer, $sender, true);
- if (!$contact)
- return false;
-
- if (self::message_exists($importer["uid"], $guid))
- return false;
-
- $parent_item = self::parent_item($importer["uid"], $parent_guid, $author, $contact);
- if (!$parent_item)
- return false;
-
- $person = self::person_by_handle($author);
- if (!is_array($person)) {
- logger("unable to find author details");
- return false;
- }
-
- // Fetch the contact id - if we know this contact
- $author_contact = self::author_contact_by_url($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);
-
- if ($message_id)
- logger("Stored comment ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
-
- // If we are the origin of the parent we store the original data and notify our followers
- if($message_id AND $parent_item["origin"]) {
-
- // Formerly we stored the signed text, the signature and the author in different fields.
- // We now store the raw data so that we are more flexible.
- q("INSERT INTO `sign` (`iid`,`signed_text`) VALUES (%d,'%s')",
- intval($message_id),
- dbesc(json_encode($data))
- );
-
- // notify others
- proc_run("php", "include/notifier.php", "comment-import", $message_id);
- }
-
- return $message_id;
- }
-
- private function receive_conversation_message($importer, $contact, $data, $msg, $mesg, $conversation) {
- $guid = notags(unxmlify($data->guid));
- $subject = notags(unxmlify($data->subject));
- $author = notags(unxmlify($data->author));
-
- $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)));
-
- // "diaspora_handle" is the element name from the old version
- // "author" is the element name from the new version
- if ($mesg->author)
- $msg_author = notags(unxmlify($mesg->author));
- elseif ($mesg->diaspora_handle)
- $msg_author = notags(unxmlify($mesg->diaspora_handle));
- else
- return false;
-
- $msg_conversation_guid = notags(unxmlify($mesg->conversation_guid));
-
- if($msg_conversation_guid != $guid) {
- logger("message conversation guid does not belong to the current conversation.");
- return false;
- }
-
- $body = diaspora2bb($msg_text);
- $message_uri = $msg_author.":".$msg_guid;
-
- $author_signed_data = $msg_guid.";".$msg_parent_guid.";".$msg_text.";".unxmlify($mesg->created_at).";".$msg_author.";".$msg_conversation_guid;
-
- $author_signature = base64_decode($msg_author_signature);
-
- if(strcasecmp($msg_author,$msg["author"]) == 0) {
- $person = $contact;
- $key = $msg["key"];
- } else {
- $person = self::person_by_handle($msg_author);
-
- if (is_array($person) && x($person, "pubkey"))
- $key = $person["pubkey"];
- else {
- logger("unable to find author details");
- return false;
- }
- }
-
- if (!rsa_verify($author_signed_data, $author_signature, $key, "sha256")) {
- logger("verification failed.");
- return false;
- }
-
- if($msg_parent_author_signature) {
- $owner_signed_data = $msg_guid.";".$msg_parent_guid.";".$msg_text.";".unxmlify($mesg->created_at).";".$msg_author.";".$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("owner verification failed.");
- return false;
- }
- }
-
- $r = q("SELECT `id` FROM `mail` WHERE `uri` = '%s' LIMIT 1",
- dbesc($message_uri)
- );
- if($r) {
- logger("duplicate message already delivered.", LOGGER_DEBUG);
- return false;
- }
-
- q("INSERT INTO `mail` (`uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`)
- VALUES (%d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
- intval($importer["uid"]),
- dbesc($msg_guid),
- intval($conversation["id"]),
- dbesc($person["name"]),
- dbesc($person["photo"]),
- dbesc($person["url"]),
- intval($contact["id"]),
- dbesc($subject),
- dbesc($body),
- 0,
- 0,
- dbesc($message_uri),
- dbesc($author.":".$guid),
- dbesc($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" => $person["thumb"],
- "verb" => ACTIVITY_POST,
- "otype" => "mail"
- ));
- }
-
- private function receive_conversation($importer, $msg, $data) {
- $guid = notags(unxmlify($data->guid));
- $subject = notags(unxmlify($data->subject));
- $created_at = datetime_convert("UTC", "UTC", notags(unxmlify($data->created_at)));
- $author = notags(unxmlify($data->author));
- $participants = notags(unxmlify($data->participants));
-
- $messages = $data->message;
-
- if (!count($messages)) {
- logger("empty conversation");
- return false;
- }
-
- $contact = self::allowed_contact_by_handle($importer, $msg["author"], true);
- if (!$contact)
- return false;
-
- $conversation = null;
-
- $c = q("SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
- intval($importer["uid"]),
- dbesc($guid)
- );
- if($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($guid),
- dbesc($author),
- dbesc(datetime_convert("UTC", "UTC", $created_at)),
- dbesc(datetime_convert()),
- dbesc($subject),
- dbesc($participants)
- );
- if($r)
- $c = q("SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
- intval($importer["uid"]),
- dbesc($guid)
- );
-
- if($c)
- $conversation = $c[0];
- }
- if (!$conversation) {
- logger("unable to create conversation.");
- return;
- }
-
- foreach($messages as $mesg)
- self::receive_conversation_message($importer, $contact, $data, $msg, $mesg, $conversation);
-
- return true;
- }
-
- private function construct_like_body($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;
- $link = '<link rel="alternate" type="text/html" href="'.App::get_baseurl()."/display/".$importer["nickname"]."/".$parent_item["id"].'" />';
- $parent_body = $parent_item["body"];
-
- $xmldata = array("object" => array("type" => $objtype,
- "local" => "1",
- "id" => $parent_item["uri"],
- "link" => $link,
- "title" => "",
- "content" => $parent_body));
-
- return xml::from_array($xmldata, $xml, true);
- }
-
- private function receive_like($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
- // But maybe this will be supported in the future, so we will accept it.
- if (!in_array($parent_type, array("Post", "Comment")))
- return false;
-
- $contact = self::allowed_contact_by_handle($importer, $sender, true);
- if (!$contact)
- return false;
-
- if (self::message_exists($importer["uid"], $guid))
- return false;
-
- $parent_item = self::parent_item($importer["uid"], $parent_guid, $author, $contact);
- if (!$parent_item)
- return false;
-
- $person = self::person_by_handle($author);
- if (!is_array($person)) {
- logger("unable to find author details");
- return false;
- }
-
- // Fetch the contact id - if we know this contact
- $author_contact = self::author_contact_by_url($contact, $person, $importer["uid"]);
-
- // "positive" = "false" would be a Dislike - wich isn't currently supported by Diaspora
- // We would accept this anyhow.
- if ($positive === "true")
- $verb = ACTIVITY_LIKE;
- else
- $verb = ACTIVITY_DISLIKE;
-
- $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"] = $verb;
- $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);
-
- if ($message_id)
- logger("Stored like ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
-
- // If we are the origin of the parent we store the original data and notify our followers
- if($message_id AND $parent_item["origin"]) {
-
- // Formerly we stored the signed text, the signature and the author in different fields.
- // We now store the raw data so that we are more flexible.
- q("INSERT INTO `sign` (`iid`,`signed_text`) VALUES (%d,'%s')",
- intval($message_id),
- dbesc(json_encode($data))
- );
-
- // notify others
- proc_run("php", "include/notifier.php", "comment-import", $message_id);
- }
-
- return $message_id;
- }
-
- private function receive_message($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));
-
- $contact = self::allowed_contact_by_handle($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($conversation_guid)
- );
- if($c)
- $conversation = $c[0];
- else {
- logger("conversation not available.");
- return false;
- }
-
- $reply = 0;
-
- $body = diaspora2bb($text);
- $message_uri = $author.":".$guid;
-
- $person = self::person_by_handle($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_uri),
- intval($importer["uid"])
- );
- if($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_uri),
- dbesc($author.":".$parent_guid),
- dbesc($created_at)
- );
-
- q("UPDATE `conv` SET `updated` = '%s' WHERE `id` = %d",
- dbesc(datetime_convert()),
- intval($conversation["id"])
- );
-
- return true;
- }
-
- private function receive_participation($importer, $data) {
- // I'm not sure if we can fully support this message type
- return true;
- }
-
- private function receive_photo($importer, $data) {
- // There doesn't seem to be a reason for this function, since the photo data is transmitted in the status message as well
- return true;
- }
-
- private function receive_poll_participation($importer, $data) {
- // We don't support polls by now
- return true;
- }
-
- private function receive_profile($importer, $data) {
- $author = notags(unxmlify($data->author));
-
- $contact = self::contact_by_handle($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);
-
- logger("Profile of contact ".$contact["id"]." stored for user ".$importer["uid"], LOGGER_DEBUG);
-
- return true;
- }
-
- private function receive_request_make_friend($importer, $contact) {
-
- $a = get_app();
-
- if($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($r && !$r[0]["hide-friends"] && !$contact["hidden"] && intval(get_pconfig($importer["uid"], "system", "post_newfriend"))) {
-
- $self = q("SELECT * FROM `contact` WHERE `self` AND `uid` = %d LIMIT 1",
- intval($importer["uid"])
- );
-
- // they are not CONTACT_IS_FOLLOWER anymore but that's what we have in the array
-
- if($self && $contact["rel"] == CONTACT_IS_FOLLOWER) {
-
- $arr = array();
- $arr["uri"] = $arr["parent-uri"] = item_new_uri($a->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", $i);
-
- }
-
- }
- }
-
- private function receive_request($importer, $data) {
- $author = unxmlify($data->author);
- $recipient = unxmlify($data->recipient);
-
- if (!$author || !$recipient)
- return;
-
- $contact = self::contact_by_handle($importer["uid"],$author);
-
- if($contact) {
-
- // perhaps we were already sharing with this person. Now they're sharing with us.
- // That makes us friends.
-
- self::receive_request_make_friend($importer, $contact);
- return true;
- }
-
- $ret = self::person_by_handle($author);
-
- if (!$ret || ($ret["network"] != NETWORK_DIASPORA)) {
- logger("Cannot resolve diaspora handle ".$author." for ".$recipient);
- return false;
- }
-
- $batch = (($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
-
- $contact_record = self::contact_by_handle($importer["uid"],$author);
-
- if (!$contact_record) {
- logger("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)
- $ret = self::send_share($u[0], $contact_record);
- }
-
- return true;
- }
-
- private function original_item($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($r) {
- logger("reshared message ".$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 (self::is_reshare($r[0]["body"]))
- $r = array();
- else
- return $r[0];
- }
-
- if (!$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) {
- $server = "http://".substr($orig_author, strpos($orig_author, "@") + 1);
- logger("2nd try: reshared message ".$guid." will be fetched from original server: ".$server);
- $item_id = self::store_by_guid($guid, $server);
- }
-
- // Deactivated by now since there is a risk that someone could manipulate postings through this method
-/* if (!$item_id) {
- $server = "https://".substr($author, strpos($author, "@") + 1);
- logger("3rd try: reshared message ".$guid." will be fetched from sharer's server: ".$server);
- $item_id = self::store_by_guid($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);
- $item_id = self::store_by_guid($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 $r[0];
-
- }
- }
- return false;
- }
-
- private function receive_reshare($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));
-
- $contact = self::allowed_contact_by_handle($importer, $author, false);
- if (!$contact)
- return false;
-
- if (self::message_exists($importer["uid"], $guid))
- return false;
-
- $original_item = self::original_item($root_guid, $root_author, $author);
- if (!$original_item)
- return false;
-
- $orig_url = App::get_baseurl()."/display/".$original_item["guid"];
-
- $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"], $orig_url);
- $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);
-
- if ($message_id)
- logger("Stored reshare ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
-
- return $message_id;
- }
-
- private function item_retraction($importer, $contact, $data) {
- $target_type = notags(unxmlify($data->target_type));
- $target_guid = notags(unxmlify($data->target_guid));
- $author = notags(unxmlify($data->author));
-
- $person = self::person_by_handle($author);
- if (!is_array($person)) {
- logger("unable to find author detail for ".$author);
- return false;
- }
-
- $r = q("SELECT `id`, `parent`, `parent-uri`, `author-link` FROM `item` WHERE `guid` = '%s' AND `uid` = %d AND NOT `file` LIKE '%%[%%' LIMIT 1",
- dbesc($target_guid),
- intval($importer["uid"])
- );
- if (!$r)
- return false;
-
- // Only delete it if the author really fits
- if (!link_compare($r[0]["author-link"], $person["url"])) {
- logger("Item author ".$r[0]["author-link"]." doesn't fit to expected contact ".$person["url"], LOGGER_DEBUG);
- return false;
- }
-
- // Check if the sender is the thread owner
- $p = q("SELECT `id`, `author-link`, `origin` FROM `item` WHERE `id` = %d",
- intval($r[0]["parent"]));
-
- // Only delete it if the parent author really fits
- if (!link_compare($p[0]["author-link"], $contact["url"]) AND !link_compare($r[0]["author-link"], $contact["url"])) {
- logger("Thread author ".$p[0]["author-link"]." and item author ".$r[0]["author-link"]." don't fit to expected contact ".$contact["url"], LOGGER_DEBUG);
- return false;
- }
-
- // Currently we don't have a central deletion function that we could use in this case. The function "item_drop" doesn't work for that case
- q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = '' , `title` = '' WHERE `id` = %d",
- dbesc(datetime_convert()),
- dbesc(datetime_convert()),
- intval($r[0]["id"])
- );
- delete_thread($r[0]["id"], $r[0]["parent-uri"]);
-
- logger("Deleted target ".$target_guid." (".$r[0]["id"].") from user ".$importer["uid"]." parent: ".$p[0]["id"], LOGGER_DEBUG);
-
- // Now check if the retraction needs to be relayed by us
- if($p[0]["origin"]) {
-
- // Formerly we stored the signed text, the signature and the author in different fields.
- // We now store the raw data so that we are more flexible.
- q("INSERT INTO `sign` (`retract_iid`,`signed_text`) VALUES (%d,'%s')",
- intval($r[0]["id"]),
- dbesc(json_encode($data))
- );
- $s = q("select * from sign where retract_iid = %d", intval($r[0]["id"]));
- logger("Stored signatur for item ".$r[0]["id"]." - ".print_r($s, true), LOGGER_DEBUG);
-
- // notify others
- proc_run("php", "include/notifier.php", "drop", $r[0]["id"]);
- }
- }
-
- private function receive_retraction($importer, $sender, $data) {
- $target_type = notags(unxmlify($data->target_type));
-
- $contact = self::contact_by_handle($importer["uid"], $sender);
- if (!$contact) {
- logger("cannot find contact for sender: ".$sender." and user ".$importer["uid"]);
- return false;
- }
-
- logger("Got retraction for ".$target_type.", sender ".$sender." and user ".$importer["uid"], LOGGER_DEBUG);
-
- switch ($target_type) {
- case "Comment":
- case "Like":
- case "Post": // "Post" will be supported in a future version
- case "Reshare":
- case "StatusMessage":
- return self::item_retraction($importer, $contact, $data);;
-
- case "Person":
- /// @todo What should we do with an "unshare"?
- // Removing the contact isn't correct since we still can read the public items
- //contact_remove($contact["id"]);
- return true;
-
- default:
- logger("Unknown target type ".$target_type);
- return false;
- }
- return true;
- }
-
- private function receive_status_message($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));
-
- /// @todo enable support for polls
- //if ($data->poll) {
- // foreach ($data->poll AS $poll)
- // print_r($poll);
- // die("poll!\n");
- //}
- $contact = self::allowed_contact_by_handle($importer, $author, false);
- if (!$contact)
- return false;
-
- if (self::message_exists($importer["uid"], $guid))
- return false;
-
- $address = array();
- if ($data->location)
- foreach ($data->location->children() AS $fieldname => $data)
- $address[$fieldname] = notags(unxmlify($data));
-
- $body = diaspora2bb($raw_message);
-
- $datarray = array();
-
- if ($data->photo) {
- foreach ($data->photo AS $photo)
- $body = "[img]".$photo->remote_photo_path.$photo->remote_photo_name."[/img]\n".$body;
-
- $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);
- }
-
- $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"] = $body;
-
- if ($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);
-
- if ($message_id)
- logger("Stored item ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
-
- return $message_id;
- }
-
- /******************************************************************************************
- * Here are all the functions that are needed to transmit data with the Diaspora protocol *
- ******************************************************************************************/
-
- private function my_handle($me) {
- if ($contact["addr"] != "")
- return $contact["addr"];
-
- // Normally we should have a filled "addr" field - but in the past this wasn't the case
- // So - just in case - we build the the address here.
- return $me["nickname"]."@".substr(App::get_baseurl(), strpos(App::get_baseurl(),"://") + 3);
- }
-
- private function build_public_message($msg, $user, $contact, $prvkey, $pubkey) {
-
- logger("Message: ".$msg, LOGGER_DATA);
-
- $handle = self::my_handle($user);
-
- $b64url_data = base64url_encode($msg);
-
- $data = str_replace(array("\n", "\r", " ", "\t"), array("", "", "", ""), $b64url_data);
-
- $type = "application/xml";
- $encoding = "base64url";
- $alg = "RSA-SHA256";
-
- $signable_data = $data.".".base64url_encode($type).".".base64url_encode($encoding).".".base64url_encode($alg);
-
- $signature = rsa_sign($signable_data,$prvkey);
- $sig = base64url_encode($signature);
-
- $xmldata = array("diaspora" => array("header" => array("author_id" => $handle),
- "me:env" => array("me:encoding" => "base64url",
- "me:alg" => "RSA-SHA256",
- "me:data" => $data,
- "@attributes" => array("type" => "application/xml"),
- "me:sig" => $sig)));
-
- $namespaces = array("" => "https://joindiaspora.com/protocol",
- "me" => "http://salmon-protocol.org/ns/magic-env");
-
- $magic_env = xml::from_array($xmldata, $xml, false, $namespaces);
-
- logger("magic_env: ".$magic_env, LOGGER_DATA);
- return $magic_env;
- }
-
- private function build_private_message($msg, $user, $contact, $prvkey, $pubkey) {
-
- logger("Message: ".$msg, LOGGER_DATA);
-
- // without a public key nothing will work
-
- if (!$pubkey) {
- logger("pubkey missing: contact id: ".$contact["id"]);
- return false;
- }
-
- $inner_aes_key = random_string(32);
- $b_inner_aes_key = base64_encode($inner_aes_key);
- $inner_iv = random_string(16);
- $b_inner_iv = base64_encode($inner_iv);
-
- $outer_aes_key = random_string(32);
- $b_outer_aes_key = base64_encode($outer_aes_key);
- $outer_iv = random_string(16);
- $b_outer_iv = base64_encode($outer_iv);
-
- $handle = self::my_handle($user);
-
- $padded_data = pkcs5_pad($msg,16);
- $inner_encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $padded_data, MCRYPT_MODE_CBC, $inner_iv);
-
- $b64_data = base64_encode($inner_encrypted);
-
-
- $b64url_data = base64url_encode($b64_data);
- $data = str_replace(array("\n", "\r", " ", "\t"), array("", "", "", ""), $b64url_data);
-
- $type = "application/xml";
- $encoding = "base64url";
- $alg = "RSA-SHA256";
-
- $signable_data = $data.".".base64url_encode($type).".".base64url_encode($encoding).".".base64url_encode($alg);
-
- $signature = rsa_sign($signable_data,$prvkey);
- $sig = base64url_encode($signature);
-
- $xmldata = array("decrypted_header" => array("iv" => $b_inner_iv,
- "aes_key" => $b_inner_aes_key,
- "author_id" => $handle));
-
- $decrypted_header = xml::from_array($xmldata, $xml, true);
- $decrypted_header = pkcs5_pad($decrypted_header,16);
-
- $ciphertext = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $outer_aes_key, $decrypted_header, MCRYPT_MODE_CBC, $outer_iv);
-
- $outer_json = json_encode(array("iv" => $b_outer_iv, "key" => $b_outer_aes_key));
-
- $encrypted_outer_key_bundle = "";
- openssl_public_encrypt($outer_json, $encrypted_outer_key_bundle, $pubkey);
-
- $b64_encrypted_outer_key_bundle = base64_encode($encrypted_outer_key_bundle);
-
- logger("outer_bundle: ".$b64_encrypted_outer_key_bundle." key: ".$pubkey, LOGGER_DATA);
-
- $encrypted_header_json_object = json_encode(array("aes_key" => base64_encode($encrypted_outer_key_bundle),
- "ciphertext" => base64_encode($ciphertext)));
- $cipher_json = base64_encode($encrypted_header_json_object);
-
- $xmldata = array("diaspora" => array("encrypted_header" => $cipher_json,
- "me:env" => array("me:encoding" => "base64url",
- "me:alg" => "RSA-SHA256",
- "me:data" => $data,
- "@attributes" => array("type" => "application/xml"),
- "me:sig" => $sig)));
-
- $namespaces = array("" => "https://joindiaspora.com/protocol",
- "me" => "http://salmon-protocol.org/ns/magic-env");
-
- $magic_env = xml::from_array($xmldata, $xml, false, $namespaces);
-
- logger("magic_env: ".$magic_env, LOGGER_DATA);
- return $magic_env;
- }
-
- private function build_message($msg, $user, $contact, $prvkey, $pubkey, $public = false) {
-
- if ($public)
- $magic_env = self::build_public_message($msg,$user,$contact,$prvkey,$pubkey);
- else
- $magic_env = self::build_private_message($msg,$user,$contact,$prvkey,$pubkey);
-
- // The data that will be transmitted is double encoded via "urlencode", strange ...
- $slap = "xml=".urlencode(urlencode($magic_env));
- return $slap;
- }
-
- private function signature($owner, $message) {
- $sigmsg = $message;
- unset($sigmsg["author_signature"]);
- unset($sigmsg["parent_author_signature"]);
-
- $signed_text = implode(";", $sigmsg);
-
- return base64_encode(rsa_sign($signed_text, $owner["uprvkey"], "sha256"));
- }
-
- public static function transmit($owner, $contact, $slap, $public_batch, $queue_run=false, $guid = "") {
-
- $a = get_app();
-
- $enabled = intval(get_config("system", "diaspora_enabled"));
- if(!$enabled)
- return 200;
-
- $logid = random_string(4);
- $dest_url = (($public_batch) ? $contact["batch"] : $contact["notify"]);
- if (!$dest_url) {
- logger("no url for contact: ".$contact["id"]." batch mode =".$public_batch);
- return 0;
- }
-
- logger("transmit: ".$logid."-".$guid." ".$dest_url);
-
- if (!$queue_run && was_recently_delayed($contact["id"])) {
- $return_code = 0;
- } else {
- if (!intval(get_config("system", "diaspora_test"))) {
- post_url($dest_url."/", $slap);
- $return_code = $a->get_curl_code();
- } else {
- logger("test_mode");
- return 200;
- }
- }
-
- logger("transmit: ".$logid."-".$guid." returns: ".$return_code);
-
- if(!$return_code || (($return_code == 503) && (stristr($a->get_curl_headers(), "retry-after")))) {
- logger("queue message");
-
- $r = q("SELECT `id` FROM `queue` WHERE `cid` = %d AND `network` = '%s' AND `content` = '%s' AND `batch` = %d LIMIT 1",
- intval($contact["id"]),
- dbesc(NETWORK_DIASPORA),
- dbesc($slap),
- intval($public_batch)
- );
- if($r) {
- logger("add_to_queue ignored - identical item already in queue");
- } else {
- // queue message for redelivery
- add_to_queue($contact["id"], NETWORK_DIASPORA, $slap, $public_batch);
- }
- }
-
- return(($return_code) ? $return_code : (-1));
- }
-
-
- private function build_and_transmit($owner, $contact, $type, $message, $public_batch = false, $guid = "", $spool = false) {
-
- $data = array("XML" => array("post" => array($type => $message)));
-
- $msg = xml::from_array($data, $xml);
-
- logger('message: '.$msg, LOGGER_DATA);
- logger('send guid '.$guid, LOGGER_DEBUG);
-
- $slap = self::build_message($msg, $owner, $contact, $owner['uprvkey'], $contact['pubkey'], $public_batch);
-
- if ($spool) {
- add_to_queue($contact['id'], NETWORK_DIASPORA, $slap, $public_batch);
- return true;
- } else
- $return_code = self::transmit($owner, $contact, $slap, $public_batch, false, $guid);
-
- logger("guid: ".$item["guid"]." result ".$return_code, LOGGER_DEBUG);
-
- return $return_code;
- }
-
- public static function send_share($owner,$contact) {
-
- $message = array("sender_handle" => self::my_handle($owner),
- "recipient_handle" => $contact["addr"]);
-
- return self::build_and_transmit($owner, $contact, "request", $message);
- }
-
- public static function send_unshare($owner,$contact) {
-
- $message = array("post_guid" => $owner["guid"],
- "diaspora_handle" => self::my_handle($owner),
- "type" => "Person");
-
- return self::build_and_transmit($owner, $contact, "retraction", $message);
- }
-
- public static function is_reshare($body) {
- $body = trim($body);
-
- // Skip if it isn't a pure repeated messages
- // Does it start with a share?
- if (strpos($body, "[share") > 0)
- return(false);
-
- // Does it end with a share?
- if (strlen($body) > (strrpos($body, "[/share]") + 8))
- return(false);
-
- $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
- // Skip if there is no shared message in there
- if ($body == $attributes)
- return(false);
-
- $guid = "";
- preg_match("/guid='(.*?)'/ism", $attributes, $matches);
- if ($matches[1] != "")
- $guid = $matches[1];
-
- preg_match('/guid="(.*?)"/ism', $attributes, $matches);
- if ($matches[1] != "")
- $guid = $matches[1];
-
- if ($guid != "") {
- $r = q("SELECT `contact-id` FROM `item` WHERE `guid` = '%s' AND `network` IN ('%s', '%s') LIMIT 1",
- dbesc($guid), NETWORK_DFRN, NETWORK_DIASPORA);
- if ($r) {
- $ret= array();
- $ret["root_handle"] = self::handle_from_contact($r[0]["contact-id"]);
- $ret["root_guid"] = $guid;
- return($ret);
- }
- }
-
- $profile = "";
- preg_match("/profile='(.*?)'/ism", $attributes, $matches);
- if ($matches[1] != "")
- $profile = $matches[1];
-
- preg_match('/profile="(.*?)"/ism', $attributes, $matches);
- if ($matches[1] != "")
- $profile = $matches[1];
-
- $ret= array();
-
- $ret["root_handle"] = preg_replace("=https?://(.*)/u/(.*)=ism", "$2@$1", $profile);
- if (($ret["root_handle"] == $profile) OR ($ret["root_handle"] == ""))
- return(false);
-
- $link = "";
- preg_match("/link='(.*?)'/ism", $attributes, $matches);
- if ($matches[1] != "")
- $link = $matches[1];
-
- preg_match('/link="(.*?)"/ism', $attributes, $matches);
- if ($matches[1] != "")
- $link = $matches[1];
-
- $ret["root_guid"] = preg_replace("=https?://(.*)/posts/(.*)=ism", "$2", $link);
- if (($ret["root_guid"] == $link) OR ($ret["root_guid"] == ""))
- return(false);
- return($ret);
- }
-
- public static function send_status($item, $owner, $contact, $public_batch = false) {
-
- $myaddr = self::my_handle($owner);
-
- $public = (($item["private"]) ? "false" : "true");
-
- $created = datetime_convert("UTC", "UTC", $item["created"], 'Y-m-d H:i:s \U\T\C');
-
- // Detect a share element and do a reshare
- if (!$item['private'] AND ($ret = self::is_reshare($item["body"]))) {
- $message = array("root_diaspora_id" => $ret["root_handle"],
- "root_guid" => $ret["root_guid"],
- "guid" => $item["guid"],
- "diaspora_handle" => $myaddr,
- "public" => $public,
- "created_at" => $created,
- "provider_display_name" => $item["app"]);
-
- $type = "reshare";
- } else {
- $title = $item["title"];
- $body = $item["body"];
-
- // convert to markdown
- $body = html_entity_decode(bb2diaspora($body));
-
- // Adding the title
- if(strlen($title))
- $body = "## ".html_entity_decode($title)."\n\n".$body;
-
- if ($item["attach"]) {
- $cnt = preg_match_all('/href=\"(.*?)\"(.*?)title=\"(.*?)\"/ism', $item["attach"], $matches, PREG_SET_ORDER);
- if(cnt) {
- $body .= "\n".t("Attachments:")."\n";
- foreach($matches as $mtch)
- $body .= "[".$mtch[3]."](".$mtch[1].")\n";
- }
- }
-
- $location = array();
-
- if ($item["location"] != "")
- $location["address"] = $item["location"];
-
- if ($item["coord"] != "") {
- $coord = explode(" ", $item["coord"]);
- $location["lat"] = $coord[0];
- $location["lng"] = $coord[1];
- }
-
- $message = array("raw_message" => $body,
- "location" => $location,
- "guid" => $item["guid"],
- "diaspora_handle" => $myaddr,
- "public" => $public,
- "created_at" => $created,
- "provider_display_name" => $item["app"]);
-
- if (count($location) == 0)
- unset($message["location"]);
-
- $type = "status_message";
- }
-
- return self::build_and_transmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
- }
-
- private function construct_like($item, $owner) {
-
- $myaddr = self::my_handle($owner);
-
- $p = q("SELECT `guid`, `uri`, `parent-uri` FROM `item` WHERE `uri` = '%s' LIMIT 1",
- dbesc($item["thr-parent"]));
- if(!$p)
- return false;
-
- $parent = $p[0];
-
- $target_type = ($parent["uri"] === $parent["parent-uri"] ? "Post" : "Comment");
- $positive = "true";
-
- return(array("positive" => $positive,
- "guid" => $item["guid"],
- "target_type" => $target_type,
- "parent_guid" => $parent["guid"],
- "author_signature" => $authorsig,
- "diaspora_handle" => $myaddr));
- }
-
- private function construct_comment($item, $owner) {
-
- $myaddr = self::my_handle($owner);
-
- $p = q("SELECT `guid` FROM `item` WHERE `parent` = %d AND `id` = %d LIMIT 1",
- intval($item["parent"]),
- intval($item["parent"])
- );
-
- if (!$p)
- return false;
-
- $parent = $p[0];
-
- $text = html_entity_decode(bb2diaspora($item["body"]));
-
- return(array("guid" => $item["guid"],
- "parent_guid" => $parent["guid"],
- "author_signature" => "",
- "text" => $text,
- "diaspora_handle" => $myaddr));
- }
-
- public static function send_followup($item,$owner,$contact,$public_batch = false) {
-
- if($item['verb'] === ACTIVITY_LIKE) {
- $message = self::construct_like($item, $owner);
- $type = "like";
- } else {
- $message = self::construct_comment($item, $owner);
- $type = "comment";
- }
-
- if (!$message)
- return false;
-
- $message["author_signature"] = self::signature($owner, $message);
-
- return self::build_and_transmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
- }
-
- private function message_from_signatur($item, $signature) {
-
- // Split the signed text
- $signed_parts = explode(";", $signature['signed_text']);
-
- if ($item["deleted"])
- $message = array("parent_author_signature" => "",
- "target_guid" => $signed_parts[0],
- "target_type" => $signed_parts[1],
- "sender_handle" => $signature['signer'],
- "target_author_signature" => $signature['signature']);
- elseif ($item['verb'] === ACTIVITY_LIKE)
- $message = array("positive" => $signed_parts[0],
- "guid" => $signed_parts[1],
- "target_type" => $signed_parts[2],
- "parent_guid" => $signed_parts[3],
- "parent_author_signature" => "",
- "author_signature" => $signature['signature'],
- "diaspora_handle" => $signed_parts[4]);
- else {
- // Remove the comment guid
- $guid = array_shift($signed_parts);
-
- // Remove the parent guid
- $parent_guid = array_shift($signed_parts);
-
- // Remove the handle
- $handle = array_pop($signed_parts);
-
- // Glue the parts together
- $text = implode(";", $signed_parts);
-
- $message = array("guid" => $guid,
- "parent_guid" => $parent_guid,
- "parent_author_signature" => "",
- "author_signature" => $signature['signature'],
- "text" => implode(";", $signed_parts),
- "diaspora_handle" => $handle);
- }
- return $message;
- }
-
- public static function send_relay($item, $owner, $contact, $public_batch = false) {
-
- if ($item["deleted"]) {
- $sql_sign_id = "retract_iid";
- $type = "relayable_retraction";
- } elseif ($item['verb'] === ACTIVITY_LIKE) {
- $sql_sign_id = "iid";
- $type = "like";
- } else {
- $sql_sign_id = "iid";
- $type = "comment";
- }
-
- logger("Got relayable data ".$type." for item ".$item["guid"]." (".$item["id"].")", LOGGER_DEBUG);
-
- // fetch the original signature
-
- $r = q("SELECT `signed_text`, `signature`, `signer` FROM `sign` WHERE `".$sql_sign_id."` = %d LIMIT 1",
- intval($item["id"]));
-
- if (!$r)
- return self::send_followup($item, $owner, $contact, $public_batch);
-
- $signature = $r[0];
-
- // Old way - is used by the internal Friendica functions
- /// @todo Change all signatur storing functions to the new format
- if ($signature['signed_text'] AND $signature['signature'] AND $signature['signer'])
- $message = self::message_from_signatur($item, $signature);
- else {// New way
- $msg = json_decode($signature['signed_text'], true);
-
- $message = array();
- foreach ($msg AS $field => $data) {
- if (!$item["deleted"]) {
- if ($field == "author")
- $field = "diaspora_handle";
- if ($field == "parent_type")
- $field = "target_type";
- }
-
- $message[$field] = $data;
- }
- }
-
- if ($item["deleted"]) {
- $signed_text = $message["target_guid"].';'.$message["target_type"];
- $message["parent_author_signature"] = base64_encode(rsa_sign($signed_text, $owner["uprvkey"], "sha256"));
- } else
- $message["parent_author_signature"] = self::signature($owner, $message);
-
- logger("Relayed data ".print_r($message, true), LOGGER_DEBUG);
-
- return self::build_and_transmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
- }
-
- public static function send_retraction($item, $owner, $contact, $public_batch = false) {
-
- $myaddr = self::my_handle($owner);
-
- // Check whether the retraction is for a top-level post or whether it's a relayable
- if ($item["uri"] !== $item["parent-uri"]) {
- $msg_type = "relayable_retraction";
- $target_type = (($item["verb"] === ACTIVITY_LIKE) ? "Like" : "Comment");
- } else {
- $msg_type = "signed_retraction";
- $target_type = "StatusMessage";
- }
-
- $signed_text = $item["guid"].";".$target_type;
-
- $message = array("target_guid" => $item['guid'],
- "target_type" => $target_type,
- "sender_handle" => $myaddr,
- "target_author_signature" => base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha256')));
-
- return self::build_and_transmit($owner, $contact, $msg_type, $message, $public_batch, $item["guid"]);
- }
-
- public static function send_mail($item, $owner, $contact) {
-
- $myaddr = self::my_handle($owner);
-
- $r = q("SELECT * FROM `conv` WHERE `id` = %d AND `uid` = %d LIMIT 1",
- intval($item["convid"]),
- intval($item["uid"])
- );
-
- if (!$r) {
- logger("conversation not found.");
- return;
- }
- $cnv = $r[0];
-
- $conv = array(
- "guid" => $cnv["guid"],
- "subject" => $cnv["subject"],
- "created_at" => datetime_convert("UTC", "UTC", $cnv['created'], 'Y-m-d H:i:s \U\T\C'),
- "diaspora_handle" => $cnv["creator"],
- "participant_handles" => $cnv["recips"]
- );
-
- $body = bb2diaspora($item["body"]);
- $created = datetime_convert("UTC", "UTC", $item["created"], 'Y-m-d H:i:s \U\T\C');
-
- $signed_text = $item["guid"].";".$cnv["guid"].";".$body.";".$created.";".$myaddr.";".$cnv['guid'];
- $sig = base64_encode(rsa_sign($signed_text, $owner["uprvkey"], "sha256"));
-
- $msg = array(
- "guid" => $item["guid"],
- "parent_guid" => $cnv["guid"],
- "parent_author_signature" => $sig,
- "author_signature" => $sig,
- "text" => $body,
- "created_at" => $created,
- "diaspora_handle" => $myaddr,
- "conversation_guid" => $cnv["guid"]
- );
-
- if ($item["reply"]) {
- $message = $msg;
- $type = "message";
- } else {
- $message = array("guid" => $cnv["guid"],
- "subject" => $cnv["subject"],
- "created_at" => datetime_convert("UTC", "UTC", $cnv['created'], 'Y-m-d H:i:s \U\T\C'),
- "message" => $msg,
- "diaspora_handle" => $cnv["creator"],
- "participant_handles" => $cnv["recips"]);
-
- $type = "conversation";
- }
-
- return self::build_and_transmit($owner, $contact, $type, $message, false, $item["guid"]);
- }
-
- public static function send_profile($uid) {
-
- if (!$uid)
- return;
-
- $recips = q("SELECT `id`,`name`,`network`,`pubkey`,`notify` FROM `contact` WHERE `network` = '%s'
- AND `uid` = %d AND `rel` != %d",
- dbesc(NETWORK_DIASPORA),
- intval($uid),
- intval(CONTACT_IS_SHARING)
- );
- if (!$recips)
- return;
-
- $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.*, `user`.`prvkey` AS `uprvkey`, `contact`.`addr`
- FROM `profile`
- INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
- INNER JOIN `contact` ON `profile`.`uid` = `contact`.`uid`
- WHERE `user`.`uid` = %d AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
- intval($uid)
- );
-
- if (!$r)
- return;
-
- $profile = $r[0];
-
- $handle = $profile["addr"];
- $first = ((strpos($profile['name'],' ')
- ? trim(substr($profile['name'],0,strpos($profile['name'],' '))) : $profile['name']));
- $last = (($first === $profile['name']) ? '' : trim(substr($profile['name'], strlen($first))));
- $large = App::get_baseurl().'/photo/custom/300/'.$profile['uid'].'.jpg';
- $medium = App::get_baseurl().'/photo/custom/100/'.$profile['uid'].'.jpg';
- $small = App::get_baseurl().'/photo/custom/50/' .$profile['uid'].'.jpg';
- $searchable = (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false');
-
- if ($searchable === 'true') {
- $dob = '1000-00-00';
-
- if (($profile['dob']) && ($profile['dob'] != '0000-00-00'))
- $dob = ((intval($profile['dob'])) ? intval($profile['dob']) : '1000') .'-'. datetime_convert('UTC','UTC',$profile['dob'],'m-d');
-
- $about = $profile['about'];
- $about = strip_tags(bbcode($about));
-
- $location = formatted_location($profile);
- $tags = '';
- if ($profile['pub_keywords']) {
- $kw = str_replace(',',' ',$profile['pub_keywords']);
- $kw = str_replace(' ',' ',$kw);
- $arr = explode(' ',$profile['pub_keywords']);
- if (count($arr)) {
- for($x = 0; $x < 5; $x ++) {
- if (trim($arr[$x]))
- $tags .= '#'. trim($arr[$x]) .' ';
- }
- }
- }
- $tags = trim($tags);
- }
-
- $message = array("diaspora_handle" => $handle,
- "first_name" => $first,
- "last_name" => $last,
- "image_url" => $large,
- "image_url_medium" => $medium,
- "image_url_small" => $small,
- "birthday" => $dob,
- "gender" => $profile['gender'],
- "bio" => $about,
- "location" => $location,
- "searchable" => $searchable,
- "tag_string" => $tags);
-
- foreach($recips as $recip)
- self::build_and_transmit($profile, $recip, "profile", $message, false, "", true);
- }
-}
-?>