+++ /dev/null
-<?php
-/**
- * @file include/diaspora.php
- * @brief The implementation of the diaspora protocol
- *
- * The new protocol is described here: http://diaspora.github.io/diaspora_federation/index.html
- * This implementation here interprets the old and the new protocol and sends the new one.
- * In the future we will remove most stuff from "valid_posting" and interpret only the new protocol.
- */
-
-use Friendica\App;
-use Friendica\Core\System;
-use Friendica\Core\Config;
-use Friendica\Core\PConfig;
-use Friendica\Core\Worker;
-use Friendica\Network\Probe;
-
-require_once 'include/items.php';
-require_once 'include/bb2diaspora.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';
-require_once 'include/queue_fn.php';
-require_once 'include/cache.php';
-
-/**
- * @brief This class contain functions to create and send Diaspora XML files
- *
- */
-class Diaspora {
-
- /**
- * @brief Return a list of relay servers
- *
- * This is an experimental Diaspora feature.
- *
- * @return array of relay servers
- */
- public static function relay_list() {
-
- $serverdata = Config::get("system", "relay_server");
- if ($serverdata == "")
- return array();
-
- $relay = array();
-
- $servers = explode(",", $serverdata);
-
- foreach ($servers AS $server) {
- $server = trim($server);
- $addr = "relay@".str_replace("http://", "", normalise_link($server));
- $batch = $server."/receive/public";
-
- $relais = q("SELECT `batch`, `id`, `name`,`network` FROM `contact` WHERE `uid` = 0 AND `batch` = '%s' AND `addr` = '%s' AND `nurl` = '%s' LIMIT 1",
- dbesc($batch), dbesc($addr), dbesc(normalise_link($server)));
-
- if (!$relais) {
- $r = q("INSERT INTO `contact` (`uid`, `created`, `name`, `nick`, `addr`, `url`, `nurl`, `batch`, `network`, `rel`, `blocked`, `pending`, `writable`, `name-date`, `uri-date`, `avatar-date`)
- VALUES (0, '%s', '%s', 'relay', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 1, '%s', '%s', '%s')",
- datetime_convert(),
- dbesc($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;
- }
-
- /**
- * @brief repairs a signature that was double encoded
- *
- * The function is unused at the moment. It was copied from the old implementation.
- *
- * @param string $signature The signature
- * @param string $handle The handle of the signature owner
- * @param integer $level This value is only set inside this function to avoid endless loops
- *
- * @return string the repaired signature
- */
- private static function repair_signature($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 verify the envelope and return the verified data
- *
- * @param string $envelope The magic envelope
- *
- * @return string verified data
- */
- private static function verify_magic_envelope($envelope) {
-
- $basedom = parse_xml_string($envelope);
-
- if (!is_object($basedom)) {
- logger("Envelope is no XML file");
- return false;
- }
-
- $children = $basedom->children('http://salmon-protocol.org/ns/magic-env');
-
- if (sizeof($children) == 0) {
- logger("XML has no children");
- return false;
- }
-
- $handle = "";
-
- $data = base64url_decode($children->data);
- $type = $children->data->attributes()->type[0];
-
- $encoding = $children->encoding;
-
- $alg = $children->alg;
-
- $sig = base64url_decode($children->sig);
- $key_id = $children->sig->attributes()->key_id[0];
- if ($key_id != "")
- $handle = base64url_decode($key_id);
-
- $b64url_data = base64url_encode($data);
- $msg = str_replace(array("\n", "\r", " ", "\t"), array("", "", "", ""), $b64url_data);
-
- $signable_data = $msg.".".base64url_encode($type).".".base64url_encode($encoding).".".base64url_encode($alg);
-
- $key = self::key($handle);
-
- $verify = rsa_verify($signable_data, $sig, $key);
- if (!$verify) {
- logger('Message did not verify. Discarding.');
- return false;
- }
-
- return $data;
- }
-
- /**
- * @brief encrypts data via AES
- *
- * @param string $key The AES key
- * @param string $iv The IV (is used for CBC encoding)
- * @param string $data The data that is to be encrypted
- *
- * @return string encrypted data
- */
- private static function aes_encrypt($key, $iv, $data) {
- return openssl_encrypt($data, 'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA, str_pad($iv, 16, "\0"));
- }
-
- /**
- * @brief decrypts data via AES
- *
- * @param string $key The AES key
- * @param string $iv The IV (is used for CBC encoding)
- * @param string $encrypted The encrypted data
- *
- * @return string decrypted data
- */
- private static function aes_decrypt($key, $iv, $encrypted) {
- return openssl_decrypt($encrypted,'aes-256-cbc', str_pad($key, 32, "\0"), OPENSSL_RAW_DATA,str_pad($iv, 16, "\0"));
- }
-
- /**
- * @brief: Decodes incoming Diaspora message in the new format
- *
- * @param array $importer Array of the importer user
- * @param string $raw raw post message
- *
- * @return array
- * 'message' -> decoded Diaspora XML message
- * 'author' -> author diaspora handle
- * 'key' -> author public key (converted to pkcs#8)
- */
- public static function decode_raw($importer, $raw) {
- $data = json_decode($raw);
-
- // Is it a private post? Then decrypt the outer Salmon
- if (is_object($data)) {
- $encrypted_aes_key_bundle = base64_decode($data->aes_key);
- $ciphertext = base64_decode($data->encrypted_magic_envelope);
-
- $outer_key_bundle = '';
- @openssl_private_decrypt($encrypted_aes_key_bundle, $outer_key_bundle, $importer['prvkey']);
- $j_outer_key_bundle = json_decode($outer_key_bundle);
-
- if (!is_object($j_outer_key_bundle)) {
- logger('Outer Salmon did not verify. Discarding.');
- http_status_exit(400);
- }
-
- $outer_iv = base64_decode($j_outer_key_bundle->iv);
- $outer_key = base64_decode($j_outer_key_bundle->key);
-
- $xml = diaspora::aes_decrypt($outer_key, $outer_iv, $ciphertext);
- } else {
- $xml = $raw;
- }
-
- $basedom = parse_xml_string($xml);
-
- if (!is_object($basedom)) {
- logger('Received data does not seem to be an XML. Discarding. '.$xml);
- http_status_exit(400);
- }
-
- $base = $basedom->children(NAMESPACE_SALMON_ME);
-
- // Not sure if this cleaning is needed
- $data = str_replace(array(" ", "\t", "\r", "\n"), array("", "", "", ""), $base->data);
-
- // Build the signed data
- $type = $base->data[0]->attributes()->type[0];
- $encoding = $base->encoding;
- $alg = $base->alg;
- $signed_data = $data.'.'.base64url_encode($type).'.'.base64url_encode($encoding).'.'.base64url_encode($alg);
-
- // This is the signature
- $signature = base64url_decode($base->sig);
-
- // Get the senders' public key
- $key_id = $base->sig[0]->attributes()->key_id[0];
- $author_addr = base64_decode($key_id);
- $key = diaspora::key($author_addr);
-
- $verify = rsa_verify($signed_data, $signature, $key);
- if (!$verify) {
- logger('Message did not verify. Discarding.');
- http_status_exit(400);
- }
-
- return array('message' => (string)base64url_decode($base->data),
- 'author' => unxmlify($author_addr),
- 'key' => (string)$key);
- }
-
- /**
- * @brief: Decodes incoming Diaspora message in the deprecated format
- *
- * @param array $importer Array of the importer user
- * @param string $xml urldecoded Diaspora salmon
- *
- * @return array
- * 'message' -> decoded Diaspora XML message
- * 'author' -> author diaspora handle
- * 'key' -> author public key (converted to pkcs#8)
- */
- public static function decode($importer, $xml) {
-
- $public = false;
- $basedom = parse_xml_string($xml);
-
- if (!is_object($basedom)) {
- logger("XML is not parseable.");
- return false;
- }
- $children = $basedom->children('https://joindiaspora.com/protocol');
-
- if ($children->header) {
- $public = true;
- $author_link = str_replace('acct:','',$children->header->author_id);
- } else {
- // This happens with posts from a relais
- if (!$importer) {
- logger("This is no private post in the old format", LOGGER_DEBUG);
- return false;
- }
-
- $encrypted_header = json_decode(base64_decode($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);
-
- $decrypted = self::aes_decrypt($outer_key, $outer_iv, $ciphertext);
-
- logger('decrypted: '.$decrypted, LOGGER_DEBUG);
- $idom = parse_xml_string($decrypted);
-
- $inner_iv = base64_decode($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);
- $inner_decrypted = self::aes_decrypt($inner_aes_key, $inner_iv, $inner_encrypted);
- }
-
- if (!$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 (!$verify) {
- logger('Message did not verify. Discarding.');
- http_status_exit(400);
- }
-
- logger('Message verified.');
-
- return array('message' => (string)$inner_decrypted,
- 'author' => unxmlify($author_link),
- 'key' => (string)$key);
- }
-
-
- /**
- * @brief Dispatches public messages and find the fitting receivers
- *
- * @param array $msg The post that will be dispatched
- *
- * @return int The message id of the generated message, "true" or "false" if there was an error
- */
- public static function dispatch_public($msg) {
-
- $enabled = intval(Config::get("system", "diaspora_enabled"));
- if (!$enabled) {
- logger("diaspora is disabled");
- return false;
- }
-
- if (!($postdata = self::valid_posting($msg))) {
- logger("Invalid posting");
- return false;
- }
-
- $fields = $postdata['fields'];
-
- // Is it a an action (comment, like, ...) for our own post?
- if (isset($fields->parent_guid) && !$postdata["relayed"]) {
- $guid = notags(unxmlify($fields->parent_guid));
- $importer = self::importer_for_guid($guid);
- if (is_array($importer)) {
- logger("delivering to origin: ".$importer["name"]);
- $message_id = self::dispatch($importer, $msg, $fields);
- return $message_id;
- }
- }
-
- // Process item retractions. This has to be done separated from the other stuff,
- // since retractions for comments could come even from non followers.
- if (!empty($fields) && in_array($fields->getName(), array('retraction'))) {
- $target = notags(unxmlify($fields->target_type));
- if (in_array($target, array("Comment", "Like", "Post", "Reshare", "StatusMessage"))) {
- logger('processing retraction for '.$target, LOGGER_DEBUG);
- $importer = array("uid" => 0, "page-flags" => PAGE_FREELOVE);
- $message_id = self::dispatch($importer, $msg, $fields);
- return $message_id;
- }
- }
-
- // 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 (dbm::is_result($r)) {
- foreach ($r as $rr) {
- logger("delivering to: ".$rr["username"]);
- self::dispatch($rr, $msg, $fields);
- }
- } elseif (!Config::get('system', 'relay_subscribe', false)) {
- logger("Unwanted message from ".$msg["author"]." send by ".$_SERVER["REMOTE_ADDR"]." with ".$_SERVER["HTTP_USER_AGENT"].": ".print_r($msg, true), LOGGER_DEBUG);
- } else {
- // Use a dummy importer to import the data for the public copy
- $importer = array("uid" => 0, "page-flags" => PAGE_FREELOVE);
- $message_id = self::dispatch($importer, $msg, $fields);
- }
-
- return $message_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
- * @param object $fields SimpleXML object that contains the message
- *
- * @return int The message id of the generated message, "true" or "false" if there was an error
- */
- public static function dispatch($importer, $msg, $fields = null) {
-
- // 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 = $msg["author"];
-
- // This is only needed for private postings since this is already done for public ones before
- if (is_null($fields)) {
- if (!($postdata = self::valid_posting($msg))) {
- logger("Invalid posting");
- return false;
- }
- $fields = $postdata['fields'];
- }
-
- $type = $fields->getName();
-
- logger("Received message type ".$type." from ".$sender." for user ".$importer["uid"], LOGGER_DEBUG);
-
- switch ($type) {
- case "account_migration":
- return self::receiveAccountMigration($importer, $fields);
-
- case "account_deletion":
- return self::receive_account_deletion($importer, $fields);
-
- case "comment":
- return self::receive_comment($importer, $sender, $fields, $msg["message"]);
-
- case "contact":
- return self::receive_contact_request($importer, $fields);
-
- case "conversation":
- return self::receive_conversation($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, $fields);
-
- case "reshare":
- return self::receive_reshare($importer, $fields, $msg["message"]);
-
- case "retraction":
- return self::receive_retraction($importer, $sender, $fields);
-
- case "status_message":
- return self::receive_status_message($importer, $fields, $msg["message"]);
-
- default:
- logger("Unknown message type ".$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 $msg Array with the XML, the sender handle and the sender signature
- *
- * @return bool|array If the posting is valid then an array with an SimpleXML object is returned
- */
- private static function valid_posting($msg) {
-
- $data = parse_xml_string($msg["message"]);
-
- if (!is_object($data)) {
- logger("No valid XML ".$msg["message"], LOGGER_DEBUG);
- 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 = $type;
-
- logger("Got message type ".$type.": ".$msg["message"], LOGGER_DATA);
-
- // All retractions are handled identically from now on.
- // In the new version there will only be "retraction".
- if (in_array($type, array("signed_retraction", "relayable_retraction")))
- $type = "retraction";
-
- if ($type == "request")
- $type = "contact";
-
- $fields = new SimpleXMLElement("<".$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 == "status_message") {
- if ($fieldname == "raw_message") {
- $fieldname = "text";
- }
- }
- if ($type == "retraction") {
- if ($fieldname == "post_guid") {
- $fieldname = "target_guid";
- }
- if ($fieldname == "type") {
- $fieldname = "target_type";
- }
- }
- }
-
- if (($fieldname == "author_signature") && ($entry != ""))
- $author_signature = base64_decode($entry);
- elseif (($fieldname == "parent_author_signature") && ($entry != ""))
- $parent_author_signature = base64_decode($entry);
- elseif (!in_array($fieldname, array("author_signature", "parent_author_signature", "target_author_signature"))) {
- if ($signed_data != "") {
- $signed_data .= ";";
- $signed_data_parent .= ";";
- }
-
- $signed_data .= $entry;
- }
- if (!in_array($fieldname, array("parent_author_signature", "target_author_signature")) ||
- ($orig_type == "relayable_retraction"))
- xml::copy($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", "like"))) {
- return array("fields" => $fields, "relayed" => false);
- }
- // No author_signature? This is a must, so we quit.
- if (!isset($author_signature)) {
- logger("No author signature for type ".$type." - Message: ".$msg["message"], LOGGER_DEBUG);
- return false;
- }
-
- if (isset($parent_author_signature)) {
- $relayed = true;
-
- $key = self::key($msg["author"]);
-
- if (!rsa_verify($signed_data, $parent_author_signature, $key, "sha256")) {
- logger("No valid parent author signature for parent author ".$msg["author"]. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$parent_author_signature, LOGGER_DEBUG);
- return false;
- }
- } else {
- $relayed = false;
- }
-
- $key = self::key($fields->author);
-
- if (!rsa_verify($signed_data, $author_signature, $key, "sha256")) {
- logger("No valid author signature for author ".$fields->author. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$author_signature, LOGGER_DEBUG);
- return false;
- } else {
- return array("fields" => $fields, "relayed" => $relayed);
- }
- }
-
- /**
- * @brief Fetches the public key for a given handle
- *
- * @param string $handle The handle
- *
- * @return string The public key
- */
- private static function key($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 $handle The handle
- *
- * @return array the queried data
- */
- public static function person_by_handle($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["guid"] == "")
- $update = true;
- }
-
- if (!$person || $update) {
- logger("create or refresh", LOGGER_DEBUG);
- $r = Probe::uri($handle, NETWORK_DIASPORA);
-
- // Note that Friendica contacts will return a "Diaspora person"
- // if Diaspora connectivity is enabled on their server
- if ($r && ($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 $update Update or insert?
- *
- * @return string The id of the fcontact entry
- */
- private static function add_fcontact($arr, $update = false) {
-
- if ($update) {
- $r = q("UPDATE `fcontact` SET
- `name` = '%s',
- `photo` = '%s',
- `request` = '%s',
- `nick` = '%s',
- `addr` = '%s',
- `guid` = '%s',
- `batch` = '%s',
- `notify` = '%s',
- `poll` = '%s',
- `confirm` = '%s',
- `alias` = '%s',
- `pubkey` = '%s',
- `updated` = '%s'
- WHERE `url` = '%s' AND `network` = '%s'",
- dbesc($arr["name"]),
- dbesc($arr["photo"]),
- dbesc($arr["request"]),
- dbesc($arr["nick"]),
- dbesc(strtolower($arr["addr"])),
- dbesc($arr["guid"]),
- dbesc($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 {
- $r = q("INSERT INTO `fcontact` (`url`,`name`,`photo`,`request`,`nick`,`addr`, `guid`,
- `batch`, `notify`,`poll`,`confirm`,`network`,`alias`,`pubkey`,`updated`)
- VALUES ('%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s')",
- dbesc($arr["url"]),
- dbesc($arr["name"]),
- dbesc($arr["photo"]),
- dbesc($arr["request"]),
- dbesc($arr["nick"]),
- dbesc($arr["addr"]),
- dbesc($arr["guid"]),
- 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;
- }
-
- /**
- * @brief get a handle (user@domain.tld) from a given contact id or gcontact id
- *
- * @param int $contact_id The id in the contact table
- * @param int $gcontact_id The id in the gcontact table
- *
- * @return string the handle
- */
- public static function handle_from_contact($contact_id, $gcontact_id = 0) {
- $handle = false;
-
- logger("contact id is ".$contact_id." - gcontact id is ".$gcontact_id, LOGGER_DEBUG);
-
- if ($gcontact_id != 0) {
- $r = q("SELECT `addr` FROM `gcontact` WHERE `id` = %d AND `addr` != ''",
- intval($gcontact_id));
-
- if (dbm::is_result($r)) {
- return strtolower($r[0]["addr"]);
- }
- }
-
- $r = q("SELECT `network`, `addr`, `self`, `url`, `nick` FROM `contact` WHERE `id` = %d",
- intval($contact_id));
-
- if (dbm::is_result($r)) {
- $contact = $r[0];
-
- logger("contact 'self' = ".$contact['self']." 'url' = ".$contact['url'], LOGGER_DEBUG);
-
- if ($contact['addr'] != "") {
- $handle = $contact['addr'];
- } else {
- $baseurl_start = strpos($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 strtolower($handle);
- }
-
- /**
- * @brief get a url (scheme://domain.tld/u/user) from a given Diaspora*
- * fcontact guid
- *
- * @param mixed $fcontact_guid Hexadecimal string guid
- *
- * @return string the contact url or null
- */
- public static function url_from_contact_guid($fcontact_guid) {
- logger("fcontact guid is ".$fcontact_guid, LOGGER_DEBUG);
-
- $r = q("SELECT `url` FROM `fcontact` WHERE `url` != '' AND `network` = '%s' AND `guid` = '%s'",
- dbesc(NETWORK_DIASPORA),
- dbesc($fcontact_guid)
- );
-
- if (dbm::is_result($r)) {
- return $r[0]['url'];
- }
-
- return null;
- }
-
- /**
- * @brief Get a contact id for a given handle
- *
- * @param int $uid The user id
- * @param string $handle The handle in the format user@domain.tld
- *
- * @return The contact id
- */
- private static function contact_by_handle($uid, $handle) {
-
- // First do a direct search on the contact table
- $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `addr` = '%s' LIMIT 1",
- intval($uid),
- dbesc($handle)
- );
-
- if (dbm::is_result($r)) {
- return $r[0];
- } else {
- /*
- * We haven't found it?
- * We use another function for it that will possibly create a contact entry.
- */
- $cid = get_contact($handle, $uid);
-
- if ($cid > 0) {
- /// @TODO Contact retrieval should be encapsulated into an "entity" class like `Contact`
- $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1", intval($cid));
-
- if (dbm::is_result($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($nurl_sql)
- );
- if (dbm::is_result($r)) {
- return $r[0];
- }
-
- logger("Haven't found contact for user ".$uid." and handle ".$handle, LOGGER_DEBUG);
- return false;
- }
-
- /**
- * @brief Check if posting is allowed for this contact
- *
- * @param array $importer Array of the importer user
- * @param array $contact The contact that is checked
- * @param bool $is_comment Is the check for a comment?
- *
- * @return bool is the contact allowed to post?
- */
- private static function post_allow($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))) {
- dba::update('contact', array('rel' => CONTACT_IS_FRIEND, 'writable' => true),
- array('id' => $contact["id"], 'uid' => $contact["uid"]));
-
- $contact["rel"] = CONTACT_IS_FRIEND;
- logger("defining user ".$contact["nick"]." as friend");
- }
-
- // We don't seem to like that person
- if ($contact["blocked"] || $contact["readonly"] || $contact["archive"]) {
- // Maybe blocked, don't accept.
- return false;
- // We are following this person?
- } elseif (($contact["rel"] == CONTACT_IS_SHARING) || ($contact["rel"] == CONTACT_IS_FRIEND)) {
- // Yes, then it is fine.
- return true;
- // Is it a post to a community?
- } elseif (($contact["rel"] == CONTACT_IS_FOLLOWER) && ($importer["page-flags"] == PAGE_COMMUNITY)) {
- // That's good
- return true;
- // Is the message a global user or a comment?
- } elseif (($importer["uid"] == 0) || $is_comment) {
- // Messages for the global users and comments are always accepted
- return true;
- }
-
- return false;
- }
-
- /**
- * @brief Fetches the contact id for a handle and checks if posting is allowed
- *
- * @param array $importer Array of the importer user
- * @param string $handle The checked handle in the format user@domain.tld
- * @param bool $is_comment Is the check for a comment?
- *
- * @return array The contact data
- */
- private static function allowed_contact_by_handle($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");
- // If a contact isn't found, we accept it anyway if it is a comment
- if ($is_comment) {
- return $importer;
- } else {
- return false;
- }
- }
-
- if (!self::post_allow($importer, $contact, $is_comment)) {
- logger("The handle: ".$handle." is not allowed to post to user ".$importer["uid"]);
- return false;
- }
- return $contact;
- }
-
- /**
- * @brief Does the message already exists on the system?
- *
- * @param int $uid The user id
- * @param string $guid The guid of the message
- *
- * @return int|bool message id if the message already was stored into the system - or false.
- */
- private static function message_exists($uid, $guid) {
- $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
- intval($uid),
- dbesc($guid)
- );
-
- if (dbm::is_result($r)) {
- logger("message ".$guid." already exists for user ".$uid);
- return $r[0]["id"];
- }
-
- return false;
- }
-
- /**
- * @brief Checks for links to posts in a message
- *
- * @param array $item The item array
- */
- private static function fetch_guid($item) {
- $expression = "=diaspora://.*?/post/([0-9A-Za-z\-_@.:]{15,254}[0-9A-Za-z])=ism";
- preg_replace_callback($expression,
- function ($match) use ($item) {
- return self::fetch_guid_sub($match, $item);
- }, $item["body"]);
-
- preg_replace_callback("&\[url=/posts/([^\[\]]*)\](.*)\[\/url\]&Usi",
- function ($match) use ($item) {
- return self::fetch_guid_sub($match, $item);
- }, $item["body"]);
- }
-
- /**
- * @brief Checks for relative /people/* links in an item body to match local
- * contacts or prepends the remote host taken from the author link.
- *
- * @param string $body The item body to replace links from
- * @param string $author_link The author link for missing local contact fallback
- *
- * @return the replaced string
- */
- public static function replace_people_guid($body, $author_link) {
- $return = preg_replace_callback("&\[url=/people/([^\[\]]*)\](.*)\[\/url\]&Usi",
- function ($match) use ($author_link) {
- // $match
- // 0 => '[url=/people/0123456789abcdef]Foo Bar[/url]'
- // 1 => '0123456789abcdef'
- // 2 => 'Foo Bar'
- $handle = self::url_from_contact_guid($match[1]);
-
- if ($handle) {
- $return = '@[url='.$handle.']'.$match[2].'[/url]';
- } else {
- // No local match, restoring absolute remote URL from author scheme and host
- $author_url = parse_url($author_link);
- $return = '[url='.$author_url['scheme'].'://'.$author_url['host'].'/people/'.$match[1].']'.$match[2].'[/url]';
- }
-
- return $return;
- }, $body);
-
- return $return;
- }
-
- /**
- * @brief sub function of "fetch_guid" which checks for links in messages
- *
- * @param array $match array containing a link that has to be checked for a message link
- * @param array $item The item array
- */
- private static function fetch_guid_sub($match, $item) {
- if (!self::store_by_guid($match[1], $item["author-link"]))
- self::store_by_guid($match[1], $item["owner-link"]);
- }
-
- /**
- * @brief Fetches an item with a given guid from a given server
- *
- * @param string $guid the message guid
- * @param string $server The server address
- * @param int $uid The user id of the user
- *
- * @return int the message id of the stored message or false
- */
- private static function store_by_guid($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);
- }
-
- /**
- * @brief Fetches a message from a server
- *
- * @param string $guid message guid
- * @param string $server The url of the server
- * @param int $level Endless loop prevention
- *
- * @return array
- * 'message' => The message XML
- * 'author' => The author handle
- * 'key' => The public key of the author
- */
- private static function message($guid, $server, $level = 0) {
-
- if ($level > 5)
- return false;
-
- // This will work for new Diaspora servers and Friendica servers from 3.5
- $source_url = $server."/fetch/post/".urlencode($guid);
-
- logger("Fetch post from ".$source_url, LOGGER_DEBUG);
-
- $envelope = fetch_url($source_url);
- if ($envelope) {
- logger("Envelope was fetched.", LOGGER_DEBUG);
- $x = self::verify_magic_envelope($envelope);
- if (!$x)
- logger("Envelope could not be verified.", LOGGER_DEBUG);
- else
- logger("Envelope was verified.", LOGGER_DEBUG);
- } else
- $x = false;
-
- // This will work for older Diaspora and Friendica servers
- if (!$x) {
- $source_url = $server."/p/".urlencode($guid).".xml";
- logger("Fetch post from ".$source_url, LOGGER_DEBUG);
-
- $x = fetch_url($source_url);
- if (!$x)
- return false;
- }
-
- $source_xml = parse_xml_string($x);
-
- if (!is_object($source_xml))
- return false;
-
- if ($source_xml->post->reshare) {
- // Reshare of a reshare - old Diaspora version
- logger("Message is a reshare", LOGGER_DEBUG);
- return self::message($source_xml->post->reshare->root_guid, $server, ++$level);
- } elseif ($source_xml->getName() == "reshare") {
- // Reshare of a reshare - new Diaspora version
- logger("Message is a new reshare", LOGGER_DEBUG);
- return self::message($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 ($source_xml->author && ($source_xml->getName() == "status_message"))
- $author = (string)$source_xml->author;
-
- // If this isn't a "status_message" then quit
- if (!$author) {
- logger("Message doesn't seem to be a status message", LOGGER_DEBUG);
- return false;
- }
-
- $msg = array("message" => $x, "author" => $author);
-
- $msg["key"] = self::key($msg["author"]);
-
- return $msg;
- }
-
- /**
- * @brief Fetches the item record of a given guid
- *
- * @param int $uid The user id
- * @param string $guid message guid
- * @param string $author The handle of the item
- * @param array $contact The contact of the item owner
- *
- * @return array the item record
- */
- private static function parent_item($uid, $guid, $author, $contact) {
- $r = q("SELECT `id`, `parent`, `body`, `wall`, `uri`, `guid`, `private`, `origin`,
- `author-name`, `author-link`, `author-avatar`,
- `owner-name`, `owner-link`, `owner-avatar`
- FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
- intval($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];
- }
- }
-
- /**
- * @brief returns contact details
- *
- * @param array $contact The default contact if the person isn't found
- * @param array $person The record of the person
- * @param int $uid The user id
- *
- * @return array
- * 'cid' => contact id
- * 'network' => network type
- */
- private static function author_contact_by_url($contact, $person, $uid) {
-
- $r = q("SELECT `id`, `network`, `url` FROM `contact` WHERE `nurl` = '%s' AND `uid` = %d LIMIT 1",
- dbesc(normalise_link($person["url"])), intval($uid));
- if ($r) {
- $cid = $r[0]["id"];
- $network = $r[0]["network"];
-
- // We are receiving content from a user that possibly is about to be terminated
- // This means the user is vital, so we remove a possible termination date.
- unmark_for_death($r[0]);
- } else {
- $cid = $contact["id"];
- $network = NETWORK_DIASPORA;
- }
-
- return array("cid" => $cid, "network" => $network);
- }
-
- /**
- * @brief Is the profile a hubzilla profile?
- *
- * @param string $url The profile link
- *
- * @return bool is it a hubzilla server?
- */
- public static function is_redmatrix($url) {
- return(strstr($url, "/channel/"));
- }
-
- /**
- * @brief Generate a post link with a given handle and message guid
- *
- * @param string $addr The user handle
- * @param string $guid message guid
- *
- * @return string the post link
- */
- private static function plink($addr, $guid, $parent_guid = '') {
- $r = q("SELECT `url`, `nick`, `network` FROM `fcontact` WHERE `addr`='%s' LIMIT 1", dbesc($addr));
-
- // Fallback
- if (!dbm::is_result($r)) {
- if ($parent_guid != '') {
- return "https://".substr($addr,strpos($addr,"@") + 1)."/posts/".$parent_guid."#".$guid;
- } else {
- 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 (dbm::is_result($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;
- }
-
- if ($parent_guid != '') {
- return "https://".substr($addr,strpos($addr,"@")+1)."/posts/".$parent_guid."#".$guid;
- } else {
- return "https://".substr($addr,strpos($addr,"@")+1)."/posts/".$guid;
- }
- }
-
- /**
- * @brief Receives account migration
- *
- * @param array $importer Array of the importer user
- * @param object $data The message object
- *
- * @return bool Success
- */
- private static function receiveAccountMigration($importer, $data) {
- $old_handle = notags(unxmlify($data->author));
- $new_handle = notags(unxmlify($data->profile->author));
- $signature = notags(unxmlify($data->signature));
-
- $contact = self::contact_by_handle($importer["uid"], $old_handle);
- if (!$contact) {
- logger("cannot find contact for sender: ".$old_handle." and user ".$importer["uid"]);
- return false;
- }
-
- logger("Got migration for ".$old_handle.", to ".$new_handle." with user ".$importer["uid"]);
-
- // Check signature
- $signed_text = 'AccountMigration:'.$old_handle.':'.$new_handle;
- $key = self::key($old_handle);
- if (!rsa_verify($signed_text, $signature, $key, "sha256")) {
- logger('No valid signature for migration.');
- return false;
- }
-
- // Update the profile
- self::receive_profile($importer, $data->profile);
-
- // change the technical stuff in contact and gcontact
- $data = Probe::uri($new_handle);
- if ($data['network'] == NETWORK_PHANTOM) {
- logger('Account for '.$new_handle." couldn't be probed.");
- return false;
- }
-
- $fields = array('url' => $data['url'], 'nurl' => normalise_link($data['url']),
- 'name' => $data['name'], 'nick' => $data['nick'],
- 'addr' => $data['addr'], 'batch' => $data['batch'],
- 'notify' => $data['notify'], 'poll' => $data['poll'],
- 'network' => $data['network']);
-
- dba::update('contact', $fields, array('addr' => $old_handle));
-
- $fields = array('url' => $data['url'], 'nurl' => normalise_link($data['url']),
- 'name' => $data['name'], 'nick' => $data['nick'],
- 'addr' => $data['addr'], 'connect' => $data['addr'],
- 'notify' => $data['notify'], 'photo' => $data['photo'],
- 'server_url' => $data['baseurl'], 'network' => $data['network']);
-
- dba::update('gcontact', $fields, array('addr' => $old_handle));
-
- logger('Contacts are updated.');
-
- // update items
- /// @todo This is an extreme performance killer
- $fields = array(
- 'owner-link' => array($contact["url"], $data["url"]),
- 'author-link' => array($contact["url"], $data["url"]),
- );
- foreach ($fields as $n=>$f) {
- $r = q("SELECT `id` FROM `item` WHERE `%s` = '%s' AND `uid` = %d LIMIT 1",
- $n, dbesc($f[0]),
- intval($importer["uid"]));
-
- if (dbm::is_result($r)) {
- $x = q("UPDATE `item` SET `%s` = '%s' WHERE `%s` = '%s' AND `uid` = %d",
- $n, dbesc($f[1]),
- $n, dbesc($f[0]),
- intval($importer["uid"]));
-
- if ($x === false) {
- return false;
- }
- }
- }
-
- logger('Items are updated.');
-
- return true;
- }
-
- /**
- * @brief Processes an account deletion
- *
- * @param array $importer Array of the importer user
- * @param object $data The message object
- *
- * @return bool Success
- */
- private static function receive_account_deletion($importer, $data) {
-
- /// @todo Account deletion should remove the contact from the global contacts as well
-
- $author = notags(unxmlify($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;
- }
-
- /**
- * @brief Fetch the uri from our database if we already have this item (maybe from ourselves)
- *
- * @param string $author Author handle
- * @param string $guid Message guid
- * @param boolean $onlyfound Only return uri when found in the database
- *
- * @return string The constructed uri or the one from our database
- */
- private static function get_uri_from_guid($author, $guid, $onlyfound = false) {
-
- $r = q("SELECT `uri` FROM `item` WHERE `guid` = '%s' LIMIT 1", dbesc($guid));
- if (dbm::is_result($r)) {
- return $r[0]["uri"];
- } elseif (!$onlyfound) {
- return $author.":".$guid;
- }
-
- return "";
- }
-
- /**
- * @brief Fetch the guid from our database with a given uri
- *
- * @param string $author Author handle
- * @param string $uri Message uri
- *
- * @return string The post guid
- */
- private static function get_guid_from_uri($uri, $uid) {
-
- $r = q("SELECT `guid` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1", dbesc($uri), intval($uid));
- if (dbm::is_result($r)) {
- return $r[0]["guid"];
- } else {
- return false;
- }
- }
-
- /**
- * @brief Find the best importer for a comment, like, ...
- *
- * @param string $guid The guid of the item
- *
- * @return array|boolean the origin owner of that post - or false
- */
- private static function importer_for_guid($guid) {
- $item = dba::fetch_first("SELECT `uid` FROM `item` WHERE `origin` AND `guid` = ? LIMIT 1", $guid);
-
- if (dbm::is_result($item)) {
- logger("Found user ".$item['uid']." as owner of item ".$guid, LOGGER_DEBUG);
- $contact = dba::fetch_first("SELECT * FROM `contact` WHERE `self` AND `uid` = ?", $item['uid']);
- if (dbm::is_result($contact)) {
- return $contact;
- }
- }
- return false;
- }
-
- /**
- * @brief Processes an incoming comment
- *
- * @param array $importer Array of the importer user
- * @param string $sender The sender of the message
- * @param object $data The message object
- * @param string $xml The original XML of the message
- *
- * @return int The message id of the generated comment or "false" if there was an error
- */
- private static function receive_comment($importer, $sender, $data, $xml) {
- $author = notags(unxmlify($data->author));
- $guid = notags(unxmlify($data->guid));
- $parent_guid = notags(unxmlify($data->parent_guid));
- $text = unxmlify($data->text);
-
- if (isset($data->created_at)) {
- $created_at = datetime_convert("UTC", "UTC", notags(unxmlify($data->created_at)));
- } else {
- $created_at = datetime_convert();
- }
-
- if (isset($data->thread_parent_guid)) {
- $thread_parent_guid = notags(unxmlify($data->thread_parent_guid));
- $thr_uri = self::get_uri_from_guid("", $thread_parent_guid, true);
- } else {
- $thr_uri = "";
- }
-
- $contact = self::allowed_contact_by_handle($importer, $sender, true);
- if (!$contact) {
- return false;
- }
-
- $message_id = self::message_exists($importer["uid"], $guid);
- if ($message_id) {
- return true;
- }
-
- $parent_item = self::parent_item($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;
- $datarray["uri"] = self::get_uri_from_guid($author, $guid);
-
- $datarray["type"] = "remote-comment";
- $datarray["verb"] = ACTIVITY_POST;
- $datarray["gravity"] = GRAVITY_COMMENT;
-
- if ($thr_uri != "") {
- $datarray["parent-uri"] = $thr_uri;
- } else {
- $datarray["parent-uri"] = $parent_item["uri"];
- }
-
- $datarray["object-type"] = ACTIVITY_OBJ_COMMENT;
-
- $datarray["protocol"] = PROTOCOL_DIASPORA;
- $datarray["source"] = $xml;
-
- $datarray["changed"] = $datarray["created"] = $datarray["edited"] = $created_at;
-
- $datarray["plink"] = self::plink($author, $guid, $parent_item['guid']);
-
- $body = diaspora2bb($text);
-
- $datarray["body"] = self::replace_people_guid($body, $person["url"]);
-
- self::fetch_guid($datarray);
-
- $message_id = item_store($datarray);
-
- if ($message_id <= 0) {
- return false;
- }
-
- if ($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 && $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.
- dba::insert('sign', array('iid' => $message_id, 'signed_text' => json_encode($data)));
-
- // notify others
- Worker::add(PRIORITY_HIGH, "notifier", "comment-import", $message_id);
- }
-
- return true;
- }
-
- /**
- * @brief processes and stores private messages
- *
- * @param array $importer Array of the importer user
- * @param array $contact The contact of the message
- * @param object $data The message object
- * @param array $msg Array of the processed message, author handle and key
- * @param object $mesg The private message
- * @param array $conversation The conversation record to which this message belongs
- *
- * @return bool "true" if it was successful
- */
- private static function receive_conversation_message($importer, $contact, $data, $msg, $mesg, $conversation) {
- $author = notags(unxmlify($data->author));
- $guid = notags(unxmlify($data->guid));
- $subject = notags(unxmlify($data->subject));
-
- // "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;
- }
-
- $msg_guid = notags(unxmlify($mesg->guid));
- $msg_conversation_guid = notags(unxmlify($mesg->conversation_guid));
- $msg_text = unxmlify($mesg->text);
- $msg_created_at = datetime_convert("UTC", "UTC", notags(unxmlify($mesg->created_at)));
-
- 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;
-
- $person = self::person_by_handle($msg_author);
-
- dba::lock('mail');
-
- $r = q("SELECT `id` FROM `mail` WHERE `guid` = '%s' AND `uid` = %d LIMIT 1",
- dbesc($msg_guid),
- intval($importer["uid"])
- );
- if (dbm::is_result($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)
- );
-
- dba::unlock();
-
- dba::update('conv', array('updated' => datetime_convert()), array('id' => $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;
- }
-
- /**
- * @brief Processes new private messages (answers to private messages are processed elsewhere)
- *
- * @param array $importer Array of the importer user
- * @param array $msg Array of the processed message, author handle and key
- * @param object $data The message object
- *
- * @return bool Success
- */
- private static function receive_conversation($importer, $msg, $data) {
- $author = notags(unxmlify($data->author));
- $guid = notags(unxmlify($data->guid));
- $subject = notags(unxmlify($data->subject));
- $created_at = datetime_convert("UTC", "UTC", notags(unxmlify($data->created_at)));
- $participants = notags(unxmlify($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($created_at),
- dbesc(datetime_convert()),
- dbesc($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 false;
- }
-
- foreach ($messages as $mesg)
- self::receive_conversation_message($importer, $contact, $data, $msg, $mesg, $conversation);
-
- return true;
- }
-
- /**
- * @brief Creates the body for a "like" message
- *
- * @param array $contact The contact that send us the "like"
- * @param array $parent_item The item array of the parent item
- * @param string $guid message guid
- *
- * @return string the body
- */
- private static function construct_like_body($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]";
- $plink = "[url=".System::baseUrl()."/display/".urlencode($guid)."]".t("status")."[/url]";
-
- return sprintf($bodyverb, $ulink, $alink, $plink);
- }
-
- /**
- * @brief Creates a XML object for a "like"
- *
- * @param array $importer Array of the importer user
- * @param array $parent_item The item array of the parent item
- *
- * @return string The XML
- */
- private static function construct_like_object($importer, $parent_item) {
- $objtype = ACTIVITY_OBJ_NOTE;
- $link = '<link rel="alternate" type="text/html" href="'.System::baseUrl()."/display/".$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);
- }
-
- /**
- * @brief Processes "like" messages
- *
- * @param array $importer Array of the importer user
- * @param string $sender The sender of the message
- * @param object $data The message object
- *
- * @return int The message id of the generated like or "false" if there was an error
- */
- private static function receive_like($importer, $sender, $data) {
- $author = notags(unxmlify($data->author));
- $guid = notags(unxmlify($data->guid));
- $parent_guid = notags(unxmlify($data->parent_guid));
- $parent_type = notags(unxmlify($data->parent_type));
- $positive = notags(unxmlify($data->positive));
-
- // 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;
-
- $message_id = self::message_exists($importer["uid"], $guid);
- if ($message_id)
- return true;
-
- $parent_item = self::parent_item($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["protocol"] = PROTOCOL_DIASPORA;
-
- $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;
- $datarray["uri"] = self::get_uri_from_guid($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 ($message_id <= 0) {
- return false;
- }
-
- if ($message_id) {
- logger("Stored like ".$datarray["guid"]." with message id ".$message_id, LOGGER_DEBUG);
- }
-
- // like on comments have the comment as parent. So we need to fetch the toplevel parent
- if ($parent_item["id"] != $parent_item["parent"]) {
- $toplevel = dba::select('item', array('origin'), array('id' => $parent_item["parent"]), array('limit' => 1));
- $origin = $toplevel["origin"];
- } else {
- $origin = $parent_item["origin"];
- }
-
- // If we are the origin of the parent we store the original data and notify our followers
- if ($message_id && $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.
- dba::insert('sign', array('iid' => $message_id, 'signed_text' => json_encode($data)));
-
- // notify others
- Worker::add(PRIORITY_HIGH, "notifier", "comment-import", $message_id);
- }
-
- return true;
- }
-
- /**
- * @brief Processes private messages
- *
- * @param array $importer Array of the importer user
- * @param object $data The message object
- *
- * @return bool Success?
- */
- private static function receive_message($importer, $data) {
- $author = notags(unxmlify($data->author));
- $guid = notags(unxmlify($data->guid));
- $conversation_guid = notags(unxmlify($data->conversation_guid));
- $text = unxmlify($data->text);
- $created_at = datetime_convert("UTC", "UTC", notags(unxmlify($data->created_at)));
-
- $contact = self::allowed_contact_by_handle($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;
- }
-
- $message_uri = $author.":".$guid;
-
- $person = self::person_by_handle($author);
- if (!$person) {
- logger("unable to find author details");
- return false;
- }
-
- $body = diaspora2bb($text);
-
- $body = self::replace_people_guid($body, $person["url"]);
-
- dba::lock('mail');
-
- $r = q("SELECT `id` FROM `mail` WHERE `guid` = '%s' AND `uid` = %d LIMIT 1",
- dbesc($guid),
- intval($importer["uid"])
- );
- if (dbm::is_result($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($author.":".$conversation["guid"]),
- dbesc($created_at)
- );
-
- dba::unlock();
-
- dba::update('conv', array('updated' => datetime_convert()), array('id' => $conversation["id"]));
- return true;
- }
-
- /**
- * @brief Processes participations - unsupported by now
- *
- * @param array $importer Array of the importer user
- * @param object $data The message object
- *
- * @return bool always true
- */
- private static function receive_participation($importer, $data) {
- // I'm not sure if we can fully support this message type
- return true;
- }
-
- /**
- * @brief Processes photos - unneeded
- *
- * @param array $importer Array of the importer user
- * @param object $data The message object
- *
- * @return bool always true
- */
- private static function receive_photo($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;
- }
-
- /**
- * @brief Processes poll participations - unssupported
- *
- * @param array $importer Array of the importer user
- * @param object $data The message object
- *
- * @return bool always true
- */
- private static function receive_poll_participation($importer, $data) {
- // We don't support polls by now
- return true;
- }
-
- /**
- * @brief Processes incoming profile updates
- *
- * @param array $importer Array of the importer user
- * @param object $data The message object
- *
- * @return bool Success
- */
- private static function receive_profile($importer, $data) {
- $author = strtolower(notags(unxmlify($data->author)));
-
- $contact = self::contact_by_handle($importer["uid"], $author);
- if (!$contact)
- return false;
-
- $name = unxmlify($data->first_name).((strlen($data->last_name)) ? " ".unxmlify($data->last_name) : "");
- $image_url = unxmlify($data->image_url);
- $birthday = unxmlify($data->birthday);
- $gender = unxmlify($data->gender);
- $about = diaspora2bb(unxmlify($data->bio));
- $location = diaspora2bb(unxmlify($data->location));
- $searchable = (unxmlify($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"])
- );
-
- $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);
-
- $gcid = update_gcontact($gcontact);
-
- link_gcontact($gcid, $importer["uid"], $contact["id"]);
-
- logger("Profile of contact ".$contact["id"]." stored for user ".$importer["uid"], LOGGER_DEBUG);
-
- return true;
- }
-
- /**
- * @brief Processes incoming friend requests
- *
- * @param array $importer Array of the importer user
- * @param array $contact The contact that send the request
- */
- private static function receive_request_make_friend($importer, $contact) {
-
- $a = get_app();
-
- if ($contact["rel"] == CONTACT_IS_SHARING) {
- dba::update('contact', array('rel' => CONTACT_IS_FRIEND, 'writable' => true),
- array('id' => $contact["id"], 'uid' => $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"] && !$contact["hidden"] && intval(PConfig::get($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["protocol"] = PROTOCOL_DIASPORA;
- $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;
-
- $arr["object"] = self::construct_new_friend_object($contact);
-
- $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)
- Worker::add(PRIORITY_HIGH, "notifier", "activity", $i);
- }
- }
- }
-
- /**
- * @brief Creates a XML object for a "new friend" message
- *
- * @param array $contact Array of the contact
- *
- * @return string The XML
- */
- private static function construct_new_friend_object($contact) {
- $objtype = ACTIVITY_OBJ_PERSON;
- $link = '<link rel="alternate" type="text/html" href="'.$contact["url"].'" />'."\n".
- '<link rel="photo" type="image/jpeg" href="'.$contact["thumb"].'" />'."\n";
-
- $xmldata = array("object" => array("type" => $objtype,
- "title" => $contact["name"],
- "id" => $contact["url"]."/".$contact["name"],
- "link" => $link));
-
- return xml::from_array($xmldata, $xml, true);
- }
-
- /**
- * @brief Processes incoming sharing notification
- *
- * @param array $importer Array of the importer user
- * @param object $data The message object
- *
- * @return bool Success
- */
- private static function receive_contact_request($importer, $data) {
- $author = unxmlify($data->author);
- $recipient = unxmlify($data->recipient);
-
- if (!$author || !$recipient) {
- return false;
- }
-
- // the current protocol version doesn't know these fields
- // That means that we will assume their existance
- if (isset($data->following)) {
- $following = (unxmlify($data->following) == "true");
- } else {
- $following = true;
- }
-
- if (isset($data->sharing)) {
- $sharing = (unxmlify($data->sharing) == "true");
- } else {
- $sharing = true;
- }
-
- $contact = self::contact_by_handle($importer["uid"],$author);
-
- // perhaps we were already sharing with this person. Now they're sharing with us.
- // That makes us friends.
- if ($contact) {
- if ($following) {
- logger("Author ".$author." (Contact ".$contact["id"].") wants to follow us.", LOGGER_DEBUG);
- self::receive_request_make_friend($importer, $contact);
-
- // refetch the contact array
- $contact = self::contact_by_handle($importer["uid"],$author);
-
- // If we are now friends, we are sending a share message.
- // Normally we needn't to do so, but the first message could have been vanished.
- if (in_array($contact["rel"], array(CONTACT_IS_FRIEND))) {
- $u = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($importer["uid"]));
- if ($u) {
- logger("Sending share message to author ".$author." - Contact: ".$contact["id"]." - User: ".$importer["uid"], LOGGER_DEBUG);
- $ret = self::send_share($u[0], $contact);
- }
- }
- return true;
- } else {
- logger("Author ".$author." doesn't want to follow us anymore.", LOGGER_DEBUG);
- lose_follower($importer, $contact);
- return true;
- }
- }
-
- if (!$following && $sharing && in_array($importer["page-flags"], array(PAGE_SOAPBOX, PAGE_NORMAL))) {
- logger("Author ".$author." wants to share with us - but doesn't want to listen. Request is ignored.", LOGGER_DEBUG);
- return false;
- } elseif (!$following && !$sharing) {
- logger("Author ".$author." doesn't want anything - and we don't know the author. Request is ignored.", LOGGER_DEBUG);
- return false;
- } elseif (!$following && $sharing) {
- logger("Author ".$author." wants to share with us.", LOGGER_DEBUG);
- } elseif ($following && $sharing) {
- logger("Author ".$author." wants to have a bidirectional conection.", LOGGER_DEBUG);
- } elseif ($following && !$sharing) {
- logger("Author ".$author." wants to listen to us.", LOGGER_DEBUG);
- }
-
- $ret = self::person_by_handle($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;
- }
-
- logger("Author ".$author." was added as contact number ".$contact_record["id"].".", LOGGER_DEBUG);
-
- $def_gid = get_default_group($importer['uid'], $ret["network"]);
-
- if (intval($def_gid))
- group_add_member($importer["uid"], "", $contact_record["id"], $def_gid);
-
- update_contact_avatar($ret["photo"], $importer['uid'], $contact_record["id"], true);
-
- if ($importer["page-flags"] == PAGE_NORMAL) {
-
- logger("Sending intra message for author ".$author.".", LOGGER_DEBUG);
-
- $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
-
- logger("Does an automatic friend approval for author ".$author.".", LOGGER_DEBUG);
-
- update_contact_avatar($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) && $sharing && $following)
- $new_relation = CONTACT_IS_FRIEND;
- elseif (($importer["page-flags"] == PAGE_FREELOVE) && $sharing)
- $new_relation = CONTACT_IS_SHARING;
- 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 ($u) {
- logger("Sending share message (Relation: ".$new_relation.") to author ".$author." - Contact: ".$contact_record["id"]." - User: ".$importer["uid"], LOGGER_DEBUG);
- $ret = self::send_share($u[0], $contact_record);
-
- // Send the profile data, maybe it weren't transmitted before
- self::send_profile($importer["uid"], array($contact_record));
- }
- }
-
- return true;
- }
-
- /**
- * @brief Fetches a message with a given guid
- *
- * @param string $guid message guid
- * @param string $orig_author handle of the original post
- * @param string $author handle of the sharer
- *
- * @return array The fetched item
- */
- private static function original_item($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 (dbm::is_result($r)) {
- logger("reshared message ".$guid." already exists on system.");
-
- // Maybe it is already a reshared item?
- // Then refetch the content, if it is a reshare from a reshare.
- // If it is a reshared post from another network then reformat to avoid display problems with two share elements
- if (self::is_reshare($r[0]["body"], true)) {
- $r = array();
- } elseif (self::is_reshare($r[0]["body"], false) || strstr($r[0]["body"], "[share")) {
- $r[0]["body"] = diaspora2bb(bb2diaspora($r[0]["body"]));
-
- $r[0]["body"] = self::replace_people_guid($r[0]["body"], $r[0]["author-link"]);
-
- // Add OEmbed and other information to the body
- $r[0]["body"] = add_page_info_to_body($r[0]["body"], false, true);
-
- return $r[0];
- } else {
- return $r[0];
- }
- }
-
- if (!dbm::is_result($r)) {
- $server = "https://".substr($orig_author, strpos($orig_author, "@") + 1);
- logger("1st try: reshared message ".$guid." will be fetched via SSL from the 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 without SLL from the 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 (dbm::is_result($r)) {
- // If it is a reshared post from another network then reformat to avoid display problems with two share elements
- if (self::is_reshare($r[0]["body"], false)) {
- $r[0]["body"] = diaspora2bb(bb2diaspora($r[0]["body"]));
- $r[0]["body"] = self::replace_people_guid($r[0]["body"], $r[0]["author-link"]);
- }
-
- return $r[0];
- }
-
- }
- }
- return false;
- }
-
- /**
- * @brief Processes a reshare message
- *
- * @param array $importer Array of the importer user
- * @param object $data The message object
- * @param string $xml The original XML of the message
- *
- * @return int the message id
- */
- private static function receive_reshare($importer, $data, $xml) {
- $author = notags(unxmlify($data->author));
- $guid = notags(unxmlify($data->guid));
- $created_at = datetime_convert("UTC", "UTC", notags(unxmlify($data->created_at)));
- $root_author = notags(unxmlify($data->root_author));
- $root_guid = notags(unxmlify($data->root_guid));
- /// @todo handle unprocessed property "provider_display_name"
- $public = notags(unxmlify($data->public));
-
- $contact = self::allowed_contact_by_handle($importer, $author, false);
- if (!$contact) {
- return false;
- }
-
- $message_id = self::message_exists($importer["uid"], $guid);
- if ($message_id) {
- return true;
- }
-
- $original_item = self::original_item($root_guid, $root_author, $author);
- if (!$original_item) {
- return false;
- }
-
- $orig_url = System::baseUrl()."/display/".$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"] = $datarray["parent-uri"] = self::get_uri_from_guid($author, $guid);
-
- $datarray["verb"] = ACTIVITY_POST;
- $datarray["gravity"] = GRAVITY_PARENT;
-
- $datarray["protocol"] = PROTOCOL_DIASPORA;
- $datarray["source"] = $xml;
-
- $prefix = share_header($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"] = $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 true;
- } else {
- return false;
- }
- }
-
- /**
- * @brief Processes retractions
- *
- * @param array $importer Array of the importer user
- * @param array $contact The contact of the item owner
- * @param object $data The message object
- *
- * @return bool success
- */
- private static function item_retraction($importer, $contact, $data) {
- $author = notags(unxmlify($data->author));
- $target_guid = notags(unxmlify($data->target_guid));
- $target_type = notags(unxmlify($data->target_type));
-
- $person = self::person_by_handle($author);
- if (!is_array($person)) {
- logger("unable to find author detail for ".$author);
- return false;
- }
-
- if (empty($contact["url"])) {
- $contact["url"] = $person["url"];
- }
-
- // Fetch items that are about to be deleted
- $fields = array('uid', 'id', 'parent', 'parent-uri', 'author-link');
-
- // When we receive a public retraction, we delete every item that we find.
- if ($importer['uid'] == 0) {
- $condition = array("`guid` = ? AND NOT `file` LIKE '%%[%%' AND NOT `deleted`", $target_guid);
- } else {
- $condition = array("`guid` = ? AND `uid` = ? AND NOT `file` LIKE '%%[%%' AND NOT `deleted`", $target_guid, $importer['uid']);
- }
- $r = dba::select('item', $fields, $condition);
- if (!dbm::is_result($r)) {
- logger("Target guid ".$target_guid." was not found on this system for user ".$importer['uid'].".");
- return false;
- }
-
- while ($item = dba::fetch($r)) {
- // Fetch the parent item
- $parent = dba::select('item', array('author-link', 'origin'), array('id' => $item["parent"]), array('limit' => 1));
-
- // Only delete it if the parent author really fits
- if (!link_compare($parent["author-link"], $contact["url"]) && !link_compare($item["author-link"], $contact["url"])) {
- logger("Thread author ".$parent["author-link"]." and item author ".$item["author-link"]." don't fit to expected contact ".$contact["url"], LOGGER_DEBUG);
- continue;
- }
-
- // 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
- dba::update('item', array('deleted' => true, 'title' => '', 'body' => '',
- 'edited' => datetime_convert(), 'changed' => datetime_convert()),
- array('id' => $item["id"]));
-
- // Delete the thread - if it is a starting post and not a comment
- if ($target_type != 'Comment') {
- delete_thread($item["id"], $item["parent-uri"]);
- }
-
- logger("Deleted target ".$target_guid." (".$item["id"].") from user ".$item["uid"]." parent: ".$item["parent"], LOGGER_DEBUG);
-
- // Now check if the retraction needs to be relayed by us
- if ($parent["origin"]) {
- // notify others
- Worker::add(PRIORITY_HIGH, "notifier", "drop", $item["id"]);
- }
- }
-
- return true;
- }
-
- /**
- * @brief Receives retraction messages
- *
- * @param array $importer Array of the importer user
- * @param string $sender The sender of the message
- * @param object $data The message object
- *
- * @return bool Success
- */
- private static function receive_retraction($importer, $sender, $data) {
- $target_type = notags(unxmlify($data->target_type));
-
- $contact = self::contact_by_handle($importer["uid"], $sender);
- if (!$contact && (in_array($target_type, array("Contact", "Person")))) {
- logger("cannot find contact for sender: ".$sender." and user ".$importer["uid"]);
- return false;
- }
-
- logger("Got retraction for ".$target_type.", sender ".$sender." and user ".$importer["uid"], LOGGER_DEBUG);
-
- switch ($target_type) {
- case "Comment":
- case "Like":
- case "Post":
- case "Reshare":
- case "StatusMessage":
- return self::item_retraction($importer, $contact, $data);
-
- case "Contact":
- case "Person":
- /// @todo What should we do with an "unshare"?
- // Removing the contact isn't correct since we still can read the public items
- contact_remove($contact["id"]);
- return true;
-
- default:
- logger("Unknown target type ".$target_type);
- return false;
- }
- return true;
- }
-
- /**
- * @brief Receives status messages
- *
- * @param array $importer Array of the importer user
- * @param object $data The message object
- * @param string $xml The original XML of the message
- *
- * @return int The message id of the newly created item
- */
- private static function receive_status_message($importer, $data, $xml) {
- $author = notags(unxmlify($data->author));
- $guid = notags(unxmlify($data->guid));
- $created_at = datetime_convert("UTC", "UTC", notags(unxmlify($data->created_at)));
- $public = notags(unxmlify($data->public));
- $text = unxmlify($data->text);
- $provider_display_name = notags(unxmlify($data->provider_display_name));
-
- $contact = self::allowed_contact_by_handle($importer, $author, false);
- if (!$contact) {
- return false;
- }
-
- $message_id = self::message_exists($importer["uid"], $guid);
- if ($message_id) {
- return true;
- }
-
- $address = array();
- if ($data->location) {
- foreach ($data->location->children() AS $fieldname => $data) {
- $address[$fieldname] = notags(unxmlify($data));
- }
- }
-
- $body = diaspora2bb($text);
-
- $datarray = array();
-
- // Attach embedded pictures to the body
- if ($data->photo) {
- foreach ($data->photo AS $photo) {
- $body = "[img]".unxmlify($photo->remote_photo_path).
- unxmlify($photo->remote_photo_name)."[/img]\n".$body;
- }
-
- $datarray["object-type"] = ACTIVITY_OBJ_IMAGE;
- } 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);
- }
- }
-
- /// @todo enable support for polls
- //if ($data->poll) {
- // foreach ($data->poll AS $poll)
- // print_r($poll);
- // die("poll!\n");
- //}
-
- /// @todo enable support for events
-
- $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"] = $datarray["parent-uri"] = self::get_uri_from_guid($author, $guid);
-
- $datarray["verb"] = ACTIVITY_POST;
- $datarray["gravity"] = GRAVITY_PARENT;
-
- $datarray["protocol"] = PROTOCOL_DIASPORA;
- $datarray["source"] = $xml;
-
- $datarray["body"] = self::replace_people_guid($body, $contact["url"]);
-
- if ($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"] = $created_at;
-
- if (isset($address["address"])) {
- $datarray["location"] = $address["address"];
- }
-
- if (isset($address["lat"]) && 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 true;
- } else {
- return false;
- }
- }
-
- /* ************************************************************************************** *
- * Here are all the functions that are needed to transmit data with the Diaspora protocol *
- * ************************************************************************************** */
-
- /**
- * @brief returnes the handle of a contact
- *
- * @param array $me contact array
- *
- * @return string the handle in the format user@domain.tld
- */
- private static function my_handle($contact) {
- if ($contact["addr"] != "") {
- return $contact["addr"];
- }
-
- // Normally we should have a filled "addr" field - but in the past this wasn't the case
- // So - just in case - we build the the address here.
- if ($contact["nickname"] != "") {
- $nick = $contact["nickname"];
- } else {
- $nick = $contact["nick"];
- }
-
- return $nick."@".substr(System::baseUrl(), strpos(System::baseUrl(),"://") + 3);
- }
-
-
- /**
- * @brief Creates the data for a private message in the new format
- *
- * @param string $msg The message that is to be transmitted
- * @param array $user The record of the sender
- * @param array $contact Target of the communication
- * @param string $prvkey The private key of the sender
- * @param string $pubkey The public key of the receiver
- *
- * @return string The encrypted data
- */
- public static function encode_private_data($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;
- }
-
- $aes_key = openssl_random_pseudo_bytes(32);
- $b_aes_key = base64_encode($aes_key);
- $iv = openssl_random_pseudo_bytes(16);
- $b_iv = base64_encode($iv);
-
- $ciphertext = self::aes_encrypt($aes_key, $iv, $msg);
-
- $json = json_encode(array("iv" => $b_iv, "key" => $b_aes_key));
-
- $encrypted_key_bundle = "";
- openssl_public_encrypt($json, $encrypted_key_bundle, $pubkey);
-
- $json_object = json_encode(array("aes_key" => base64_encode($encrypted_key_bundle),
- "encrypted_magic_envelope" => base64_encode($ciphertext)));
-
- return $json_object;
- }
-
- /**
- * @brief Creates the envelope for the "fetch" endpoint and for the new format
- *
- * @param string $msg The message that is to be transmitted
- * @param array $user The record of the sender
- *
- * @return string The envelope
- */
- public static function build_magic_envelope($msg, $user) {
-
- $b64url_data = base64url_encode($msg);
- $data = str_replace(array("\n", "\r", " ", "\t"), array("", "", "", ""), $b64url_data);
-
- $key_id = base64url_encode(self::my_handle($user));
- $type = "application/xml";
- $encoding = "base64url";
- $alg = "RSA-SHA256";
- $signable_data = $data.".".base64url_encode($type).".".base64url_encode($encoding).".".base64url_encode($alg);
-
- // Fallback if the private key wasn't transmitted in the expected field
- if ($user['uprvkey'] == "")
- $user['uprvkey'] = $user['prvkey'];
-
- $signature = rsa_sign($signable_data, $user["uprvkey"]);
- $sig = base64url_encode($signature);
-
- $xmldata = array("me:env" => array("me:data" => $data,
- "@attributes" => array("type" => $type),
- "me:encoding" => $encoding,
- "me:alg" => $alg,
- "me:sig" => $sig,
- "@attributes2" => array("key_id" => $key_id)));
-
- $namespaces = array("me" => "http://salmon-protocol.org/ns/magic-env");
-
- return xml::from_array($xmldata, $xml, false, $namespaces);
- }
-
- /**
- * @brief Create the envelope for a message
- *
- * @param string $msg The message that is to be transmitted
- * @param array $user The record of the sender
- * @param array $contact Target of the communication
- * @param string $prvkey The private key of the sender
- * @param string $pubkey The public key of the receiver
- * @param bool $public Is the message public?
- *
- * @return string The message that will be transmitted to other servers
- */
- private static function build_message($msg, $user, $contact, $prvkey, $pubkey, $public = false) {
-
- // The message is put into an envelope with the sender's signature
- $envelope = self::build_magic_envelope($msg, $user);
-
- // Private messages are put into a second envelope, encrypted with the receivers public key
- if (!$public) {
- $envelope = self::encode_private_data($envelope, $user, $contact, $prvkey, $pubkey);
- }
-
- return $envelope;
- }
-
- /**
- * @brief Creates a signature for a message
- *
- * @param array $owner the array of the owner of the message
- * @param array $message The message that is to be signed
- *
- * @return string The signature
- */
- private static function signature($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"));
- }
-
- /**
- * @brief Transmit a message to a target server
- *
- * @param array $owner the array of the item owner
- * @param array $contact Target of the communication
- * @param string $envelope The message that is to be transmitted
- * @param bool $public_batch Is it a public post?
- * @param bool $queue_run Is the transmission called from the queue?
- * @param string $guid message guid
- *
- * @return int Result of the transmission
- */
- public static function transmit($owner, $contact, $envelope, $public_batch, $queue_run=false, $guid = "") {
-
- $a = get_app();
-
- $enabled = intval(Config::get("system", "diaspora_enabled"));
- if (!$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(Config::get("system", "diaspora_test"))) {
- $content_type = (($public_batch) ? "application/magic-envelope+xml" : "application/json");
-
- post_url($dest_url."/", $envelope, array("Content-Type: ".$content_type));
- $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($envelope),
- intval($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, $envelope, $public_batch);
-
- // The message could not be delivered. We mark the contact as "dead"
- mark_for_death($contact);
- }
- } elseif (($return_code >= 200) && ($return_code <= 299)) {
- // We successfully delivered a message, the contact is alive
- unmark_for_death($contact);
- }
-
- return(($return_code) ? $return_code : (-1));
- }
-
-
- /**
- * @brief Build the post xml
- *
- * @param string $type The message type
- * @param array $message The message data
- *
- * @return string The post XML
- */
- public static function build_post_xml($type, $message) {
-
- $data = array($type => $message);
-
- return xml::from_array($data, $xml);
- }
-
- /**
- * @brief Builds and transmit messages
- *
- * @param array $owner the array of the item owner
- * @param array $contact Target of the communication
- * @param string $type The message type
- * @param array $message The message data
- * @param bool $public_batch Is it a public post?
- * @param string $guid message guid
- * @param bool $spool Should the transmission be spooled or transmitted?
- *
- * @return int Result of the transmission
- */
- private static function build_and_transmit($owner, $contact, $type, $message, $public_batch = false, $guid = "", $spool = false) {
-
- $msg = self::build_post_xml($type, $message);
-
- logger('message: '.$msg, LOGGER_DATA);
- logger('send guid '.$guid, LOGGER_DEBUG);
-
- // Fallback if the private key wasn't transmitted in the expected field
- if ($owner['uprvkey'] == "")
- $owner['uprvkey'] = $owner['prvkey'];
-
- $envelope = self::build_message($msg, $owner, $contact, $owner['uprvkey'], $contact['pubkey'], $public_batch);
-
- if ($spool) {
- add_to_queue($contact['id'], NETWORK_DIASPORA, $envelope, $public_batch);
- return true;
- } else
- $return_code = self::transmit($owner, $contact, $envelope, $public_batch, false, $guid);
-
- logger("guid: ".$item["guid"]." result ".$return_code, LOGGER_DEBUG);
-
- return $return_code;
- }
-
- /**
- * @brief sends an account migration
- *
- * @param array $owner the array of the item owner
- * @param array $contact Target of the communication
- * @param int $uid User ID
- *
- * @return int The result of the transmission
- */
- public static function sendAccountMigration($owner, $contact, $uid) {
-
- $old_handle = PConfig::get($uid, 'system', 'previous_addr');
- $profile = self::createProfileData($uid);
-
- $signed_text = 'AccountMigration:'.$old_handle.':'.$profile['author'];
- $signature = base64_encode(rsa_sign($signed_text, $owner["uprvkey"], "sha256"));
-
- $message = array("author" => $old_handle,
- "profile" => $profile,
- "signature" => $signature);
-
- logger("Send account migration ".print_r($message, true), LOGGER_DEBUG);
-
- return self::build_and_transmit($owner, $contact, "account_migration", $message);
- }
-
- /**
- * @brief Sends a "share" message
- *
- * @param array $owner the array of the item owner
- * @param array $contact Target of the communication
- *
- * @return int The result of the transmission
- */
- public static function send_share($owner, $contact) {
-
- /**
- * @todo support the different possible combinations of "following" and "sharing"
- * Currently, Diaspora only interprets the "sharing" field
- *
- * Before switching this code productive, we have to check all "send_share" calls if "rel" is set correctly
- */
-
- /*
- switch ($contact["rel"]) {
- case CONTACT_IS_FRIEND:
- $following = true;
- $sharing = true;
- case CONTACT_IS_SHARING:
- $following = false;
- $sharing = true;
- case CONTACT_IS_FOLLOWER:
- $following = true;
- $sharing = false;
- }
- */
-
- $message = array("author" => self::my_handle($owner),
- "recipient" => $contact["addr"],
- "following" => "true",
- "sharing" => "true");
-
- logger("Send share ".print_r($message, true), LOGGER_DEBUG);
-
- return self::build_and_transmit($owner, $contact, "contact", $message);
- }
-
- /**
- * @brief sends an "unshare"
- *
- * @param array $owner the array of the item owner
- * @param array $contact Target of the communication
- *
- * @return int The result of the transmission
- */
- public static function send_unshare($owner, $contact) {
-
- $message = array("author" => self::my_handle($owner),
- "recipient" => $contact["addr"],
- "following" => "false",
- "sharing" => "false");
-
- logger("Send unshare ".print_r($message, true), LOGGER_DEBUG);
-
- return self::build_and_transmit($owner, $contact, "contact", $message);
- }
-
- /**
- * @brief Checks a message body if it is a reshare
- *
- * @param string $body The message body that is to be check
- * @param bool $complete Should it be a complete check or a simple check?
- *
- * @return array|bool Reshare details or "false" if no reshare
- */
- public static function is_reshare($body, $complete = true) {
- $body = trim($body);
-
- // Skip if it isn't a pure repeated messages
- // Does it start with a share?
- if ((strpos($body, "[share") > 0) && $complete)
- return(false);
-
- // Does it end with a share?
- if (strlen($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 == $attributes)
- return(false);
-
- // If we don't do the complete check we quit here
- if (!$complete)
- return true;
-
- $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"] == $profile) || ($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"] == $link) || (trim($ret["root_guid"]) == ""))
- return(false);
-
- return($ret);
- }
-
- /**
- * @brief Create an event array
- *
- * @param integer $event_id The id of the event
- *
- * @return array with event data
- */
- private static function build_event($event_id) {
-
- $r = q("SELECT `guid`, `uid`, `start`, `finish`, `nofinish`, `summary`, `desc`, `location`, `adjust` FROM `event` WHERE `id` = %d", intval($event_id));
- if (!dbm::is_result($r)) {
- return array();
- }
-
- $event = $r[0];
-
- $eventdata = array();
-
- $r = q("SELECT `timezone` FROM `user` WHERE `uid` = %d", intval($event['uid']));
- if (!dbm::is_result($r)) {
- return array();
- }
-
- $user = $r[0];
-
- $r = q("SELECT `addr`, `nick` FROM `contact` WHERE `uid` = %d AND `self`", intval($event['uid']));
- if (!dbm::is_result($r)) {
- return array();
- }
-
- $owner = $r[0];
-
- $eventdata['author'] = self::my_handle($owner);
-
- if ($event['guid']) {
- $eventdata['guid'] = $event['guid'];
- }
-
- $mask = 'Y-m-d\TH:i:s\Z';
-
- /// @todo - establish "all day" events in Friendica
- $eventdata["all_day"] = "false";
-
- if (!$event['adjust']) {
- $eventdata['timezone'] = $user['timezone'];
-
- if ($eventdata['timezone'] == "") {
- $eventdata['timezone'] = 'UTC';
- }
- }
-
- if ($event['start']) {
- $eventdata['start'] = datetime_convert($eventdata['timezone'], "UTC", $event['start'], $mask);
- }
- if ($event['finish'] && !$event['nofinish']) {
- $eventdata['end'] = datetime_convert($eventdata['timezone'], "UTC", $event['finish'], $mask);
- }
- if ($event['summary']) {
- $eventdata['summary'] = html_entity_decode(bb2diaspora($event['summary']));
- }
- if ($event['desc']) {
- $eventdata['description'] = html_entity_decode(bb2diaspora($event['desc']));
- }
- if ($event['location']) {
- $location = array();
- $location["address"] = html_entity_decode(bb2diaspora($event['location']));
- $location["lat"] = 0;
- $location["lng"] = 0;
- $eventdata['location'] = $location;
- }
-
- return $eventdata;
- }
-
- /**
- * @brief Create a post (status message or reshare)
- *
- * @param array $item The item that will be exported
- * @param array $owner the array of the item owner
- *
- * @return array
- * 'type' -> Message type ("status_message" or "reshare")
- * 'message' -> Array of XML elements of the status
- */
- public static function build_status($item, $owner) {
-
- $cachekey = "diaspora:build_status:".$item['guid'];
-
- $result = Cache::get($cachekey);
- if (!is_null($result)) {
- return $result;
- }
-
- $myaddr = self::my_handle($owner);
-
- $public = (($item["private"]) ? "false" : "true");
-
- $created = datetime_convert("UTC", "UTC", $item["created"], 'Y-m-d\TH:i:s\Z');
-
- // Detect a share element and do a reshare
- if (!$item['private'] && ($ret = self::is_reshare($item["body"]))) {
- $message = array("author" => $myaddr,
- "guid" => $item["guid"],
- "created_at" => $created,
- "root_author" => $ret["root_handle"],
- "root_guid" => $ret["root_guid"],
- "provider_display_name" => $item["app"],
- "public" => $public);
-
- $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("author" => $myaddr,
- "guid" => $item["guid"],
- "created_at" => $created,
- "public" => $public,
- "text" => $body,
- "provider_display_name" => $item["app"],
- "location" => $location);
-
- // Diaspora rejects messages when they contain a location without "lat" or "lng"
- if (!isset($location["lat"]) || !isset($location["lng"])) {
- unset($message["location"]);
- }
-
- if ($item['event-id'] > 0) {
- $event = self::build_event($item['event-id']);
- if (count($event)) {
- $message['event'] = $event;
-
- /// @todo Once Diaspora supports it, we will remove the body
- // $message['text'] = '';
- }
- }
-
- $type = "status_message";
- }
-
- $msg = array("type" => $type, "message" => $message);
-
- Cache::set($cachekey, $msg, CACHE_QUARTER_HOUR);
-
- return $msg;
- }
-
- /**
- * @brief Sends a post
- *
- * @param array $item The item that will be exported
- * @param array $owner the array of the item owner
- * @param array $contact Target of the communication
- * @param bool $public_batch Is it a public post?
- *
- * @return int The result of the transmission
- */
- public static function send_status($item, $owner, $contact, $public_batch = false) {
-
- $status = self::build_status($item, $owner);
-
- return self::build_and_transmit($owner, $contact, $status["type"], $status["message"], $public_batch, $item["guid"]);
- }
-
- /**
- * @brief Creates a "like" object
- *
- * @param array $item The item that will be exported
- * @param array $owner the array of the item owner
- *
- * @return array The data for a "like"
- */
- private static function construct_like($item, $owner) {
-
- $p = q("SELECT `guid`, `uri`, `parent-uri` FROM `item` WHERE `uri` = '%s' LIMIT 1",
- dbesc($item["thr-parent"]));
- if (!dbm::is_result($p))
- return false;
-
- $parent = $p[0];
-
- $target_type = ($parent["uri"] === $parent["parent-uri"] ? "Post" : "Comment");
- if ($item['verb'] === ACTIVITY_LIKE) {
- $positive = "true";
- } elseif ($item['verb'] === ACTIVITY_DISLIKE) {
- $positive = "false";
- }
-
- return(array("author" => self::my_handle($owner),
- "guid" => $item["guid"],
- "parent_guid" => $parent["guid"],
- "parent_type" => $target_type,
- "positive" => $positive,
- "author_signature" => ""));
- }
-
- /**
- * @brief Creates an "EventParticipation" object
- *
- * @param array $item The item that will be exported
- * @param array $owner the array of the item owner
- *
- * @return array The data for an "EventParticipation"
- */
- private static function construct_attend($item, $owner) {
-
- $p = q("SELECT `guid`, `uri`, `parent-uri` FROM `item` WHERE `uri` = '%s' LIMIT 1",
- dbesc($item["thr-parent"]));
- if (!dbm::is_result($p))
- return false;
-
- $parent = $p[0];
-
- switch ($item['verb']) {
- case ACTIVITY_ATTEND:
- $attend_answer = 'accepted';
- break;
- case ACTIVITY_ATTENDNO:
- $attend_answer = 'declined';
- break;
- case ACTIVITY_ATTENDMAYBE:
- $attend_answer = 'tentative';
- break;
- default:
- logger('Unknown verb '.$item['verb'].' in item '.$item['guid']);
- return false;
- }
-
- return(array("author" => self::my_handle($owner),
- "guid" => $item["guid"],
- "parent_guid" => $parent["guid"],
- "status" => $attend_answer,
- "author_signature" => ""));
- }
-
- /**
- * @brief Creates the object for a comment
- *
- * @param array $item The item that will be exported
- * @param array $owner the array of the item owner
- *
- * @return array The data for a comment
- */
- private static function construct_comment($item, $owner) {
-
- $cachekey = "diaspora:construct_comment:".$item['guid'];
-
- $result = Cache::get($cachekey);
- if (!is_null($result)) {
- return $result;
- }
-
- $p = q("SELECT `guid` FROM `item` WHERE `parent` = %d AND `id` = %d LIMIT 1",
- intval($item["parent"]),
- intval($item["parent"])
- );
-
- if (!dbm::is_result($p))
- return false;
-
- $parent = $p[0];
-
- $text = html_entity_decode(bb2diaspora($item["body"]));
- $created = datetime_convert("UTC", "UTC", $item["created"], 'Y-m-d\TH:i:s\Z');
-
- $comment = array("author" => self::my_handle($owner),
- "guid" => $item["guid"],
- "created_at" => $created,
- "parent_guid" => $parent["guid"],
- "text" => $text,
- "author_signature" => "");
-
- // Send the thread parent guid only if it is a threaded comment
- if ($item['thr-parent'] != $item['parent-uri']) {
- $comment['thread_parent_guid'] = self::get_guid_from_uri($item['thr-parent'], $item['uid']);
- }
-
- Cache::set($cachekey, $comment, CACHE_QUARTER_HOUR);
-
- return($comment);
- }
-
- /**
- * @brief Send a like or a comment
- *
- * @param array $item The item that will be exported
- * @param array $owner the array of the item owner
- * @param array $contact Target of the communication
- * @param bool $public_batch Is it a public post?
- *
- * @return int The result of the transmission
- */
- public static function send_followup($item,$owner,$contact,$public_batch = false) {
-
- if (in_array($item['verb'], array(ACTIVITY_ATTEND, ACTIVITY_ATTENDNO, ACTIVITY_ATTENDMAYBE))) {
- $message = self::construct_attend($item, $owner);
- $type = "event_participation";
- } elseif (in_array($item["verb"], array(ACTIVITY_LIKE, ACTIVITY_DISLIKE))) {
- $message = self::construct_like($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"]);
- }
-
- /**
- * @brief Creates a message from a signature record entry
- *
- * @param array $item The item that will be exported
- * @param array $signature The entry of the "sign" record
- *
- * @return string The message
- */
- private static function message_from_signature($item, $signature) {
-
- // Split the signed text
- $signed_parts = explode(";", $signature['signed_text']);
-
- if ($item["deleted"]) {
- $message = array("author" => $signature['signer'],
- "target_guid" => $signed_parts[0],
- "target_type" => $signed_parts[1]);
- } elseif (in_array($item["verb"], array(ACTIVITY_LIKE, ACTIVITY_DISLIKE))) {
- $message = array("author" => $signed_parts[4],
- "guid" => $signed_parts[1],
- "parent_guid" => $signed_parts[3],
- "parent_type" => $signed_parts[2],
- "positive" => $signed_parts[0],
- "author_signature" => $signature['signature'],
- "parent_author_signature" => "");
- } 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("author" => $handle,
- "guid" => $guid,
- "parent_guid" => $parent_guid,
- "text" => implode(";", $signed_parts),
- "author_signature" => $signature['signature'],
- "parent_author_signature" => "");
- }
- return $message;
- }
-
- /**
- * @brief Relays messages (like, comment, retraction) to other servers if we are the thread owner
- *
- * @param array $item The item that will be exported
- * @param array $owner the array of the item owner
- * @param array $contact Target of the communication
- * @param bool $public_batch Is it a public post?
- *
- * @return int The result of the transmission
- */
- public static function send_relay($item, $owner, $contact, $public_batch = false) {
-
- if ($item["deleted"]) {
- return self::send_retraction($item, $owner, $contact, $public_batch, true);
- } elseif (in_array($item["verb"], array(ACTIVITY_LIKE, ACTIVITY_DISLIKE))) {
- $type = "like";
- } else {
- $type = "comment";
- }
-
- logger("Got relayable data ".$type." for item ".$item["guid"]." (".$item["id"].")", LOGGER_DEBUG);
-
- // fetch the original signature
-
- $r = q("SELECT `signed_text`, `signature`, `signer` FROM `sign` WHERE `iid` = %d LIMIT 1",
- intval($item["id"]));
-
- if (!$r) {
- logger("Couldn't fetch signatur for item ".$item["guid"]." (".$item["id"].")", LOGGER_DEBUG);
- return false;
- }
-
- $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'] && $signature['signature'] && $signature['signer'])
- $message = self::message_from_signature($item, $signature);
- else {// New way
- $msg = json_decode($signature['signed_text'], true);
-
- $message = array();
- if (is_array($msg)) {
- foreach ($msg AS $field => $data) {
- if (!$item["deleted"]) {
- if ($field == "diaspora_handle") {
- $field = "author";
- }
- if ($field == "target_type") {
- $field = "parent_type";
- }
- }
-
- $message[$field] = $data;
- }
- } else
- logger("Signature text for item ".$item["guid"]." (".$item["id"].") couldn't be extracted: ".$signature['signed_text'], LOGGER_DEBUG);
- }
-
- $message["parent_author_signature"] = self::signature($owner, $message);
-
- logger("Relayed data ".print_r($message, true), LOGGER_DEBUG);
-
- return self::build_and_transmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
- }
-
- /**
- * @brief Sends a retraction (deletion) of a message, like or comment
- *
- * @param array $item The item that will be exported
- * @param array $owner the array of the item owner
- * @param array $contact Target of the communication
- * @param bool $public_batch Is it a public post?
- * @param bool $relay Is the retraction transmitted from a relay?
- *
- * @return int The result of the transmission
- */
- public static function send_retraction($item, $owner, $contact, $public_batch = false, $relay = false) {
-
- $itemaddr = self::handle_from_contact($item["contact-id"], $item["gcontact-id"]);
-
- $msg_type = "retraction";
-
- if ($item['id'] == $item['parent']) {
- $target_type = "Post";
- } elseif (in_array($item["verb"], array(ACTIVITY_LIKE, ACTIVITY_DISLIKE))) {
- $target_type = "Like";
- } else {
- $target_type = "Comment";
- }
-
- $message = array("author" => $itemaddr,
- "target_guid" => $item['guid'],
- "target_type" => $target_type);
-
- logger("Got message ".print_r($message, true), LOGGER_DEBUG);
-
- return self::build_and_transmit($owner, $contact, $msg_type, $message, $public_batch, $item["guid"]);
- }
-
- /**
- * @brief Sends a mail
- *
- * @param array $item The item that will be exported
- * @param array $owner The owner
- * @param array $contact Target of the communication
- *
- * @return int The result of the transmission
- */
- public static function send_mail($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($item["uid"])
- );
-
- if (!dbm::is_result($r)) {
- logger("conversation not found.");
- return;
- }
- $cnv = $r[0];
-
- $conv = array(
- "author" => $cnv["creator"],
- "guid" => $cnv["guid"],
- "subject" => $cnv["subject"],
- "created_at" => datetime_convert("UTC", "UTC", $cnv['created'], 'Y-m-d\TH:i:s\Z'),
- "participants" => $cnv["recips"]
- );
-
- $body = bb2diaspora($item["body"]);
- $created = datetime_convert("UTC", "UTC", $item["created"], 'Y-m-d\TH:i:s\Z');
-
- $msg = array(
- "author" => $myaddr,
- "guid" => $item["guid"],
- "conversation_guid" => $cnv["guid"],
- "text" => $body,
- "created_at" => $created,
- );
-
- if ($item["reply"]) {
- $message = $msg;
- $type = "message";
- } else {
- $message = array(
- "author" => $cnv["creator"],
- "guid" => $cnv["guid"],
- "subject" => $cnv["subject"],
- "created_at" => datetime_convert("UTC", "UTC", $cnv['created'], 'Y-m-d\TH:i:s\Z'),
- "participants" => $cnv["recips"],
- "message" => $msg);
-
- $type = "conversation";
- }
-
- return self::build_and_transmit($owner, $contact, $type, $message, false, $item["guid"]);
- }
-
- /**
- * @brief Create profile data
- *
- * @param int $uid The user id
- *
- * @return array The profile data
- */
- private static function createProfileData($uid) {
- $r = q("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `user`.*, `user`.`prvkey` AS `uprvkey`, `contact`.`addr`
- FROM `profile`
- INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
- INNER JOIN `contact` ON `profile`.`uid` = `contact`.`uid`
- WHERE `user`.`uid` = %d AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
- intval($uid)
- );
-
- if (!$r) {
- return array();
- }
-
- $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))));
- $large = System::baseUrl().'/photo/custom/300/'.$profile['uid'].'.jpg';
- $medium = System::baseUrl().'/photo/custom/100/'.$profile['uid'].'.jpg';
- $small = System::baseUrl().'/photo/custom/50/' .$profile['uid'].'.jpg';
- $searchable = (($profile['publish'] && $profile['net-publish']) ? 'true' : 'false');
-
- if ($searchable === 'true') {
- $dob = '1000-00-00';
-
- if (($profile['dob']) && ($profile['dob'] > '0001-01-01'))
- $dob = ((intval($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);
- }
-
- return array("author" => $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,
- "nsfw" => "false",
- "tag_string" => $tags);
- }
-
- /**
- * @brief Sends profile data
- *
- * @param int $uid The user id
- */
- public static function send_profile($uid, $recips = false) {
-
- if (!$uid)
- return;
-
- if (!$recips)
- $recips = q("SELECT `id`,`name`,`network`,`pubkey`,`notify` FROM `contact` WHERE `network` = '%s'
- AND `uid` = %d AND `rel` != %d",
- dbesc(NETWORK_DIASPORA),
- intval($uid),
- intval(CONTACT_IS_SHARING)
- );
- if (!$recips)
- return;
-
- $message = self::createProfileData($uid);
-
- foreach ($recips as $recip) {
- logger("Send updated profile data for user ".$uid." to contact ".$recip["id"], LOGGER_DEBUG);
- self::build_and_transmit($profile, $recip, "profile", $message, false, "", true);
- }
- }
-
- /**
- * @brief Stores the signature for likes that are created on our system
- *
- * @param array $contact The contact array of the "like"
- * @param int $post_id The post id of the "like"
- *
- * @return bool Success
- */
- public static function store_like_signature($contact, $post_id) {
-
- // Is the contact the owner? Then fetch the private key
- if (!$contact['self'] || ($contact['uid'] == 0)) {
- logger("No owner post, so not storing signature", LOGGER_DEBUG);
- return false;
- }
-
- $r = q("SELECT `prvkey` FROM `user` WHERE `uid` = %d LIMIT 1", intval($contact['uid']));
- if (!dbm::is_result($r)) {
- return false;
- }
-
- $contact["uprvkey"] = $r[0]['prvkey'];
-
- $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1", intval($post_id));
- if (!dbm::is_result($r)) {
- return false;
- }
-
- if (!in_array($r[0]["verb"], array(ACTIVITY_LIKE, ACTIVITY_DISLIKE))) {
- return false;
- }
-
- $message = self::construct_like($r[0], $contact);
- $message["author_signature"] = self::signature($contact, $message);
-
- /*
- * Now store the signature more flexible to dynamically support new fields.
- * This will break Diaspora compatibility with Friendica versions prior to 3.5.
- */
- dba::insert('sign', array('iid' => $post_id, 'signed_text' => json_encode($message)));
-
- logger('Stored diaspora like signature');
- return true;
- }
-
- /**
- * @brief Stores the signature for comments that are created on our system
- *
- * @param array $item The item array of the comment
- * @param array $contact The contact array of the item owner
- * @param string $uprvkey The private key of the sender
- * @param int $message_id The message id of the comment
- *
- * @return bool Success
- */
- public static function store_comment_signature($item, $contact, $uprvkey, $message_id) {
-
- if ($uprvkey == "") {
- logger('No private key, so not storing comment signature', LOGGER_DEBUG);
- return false;
- }
-
- $contact["uprvkey"] = $uprvkey;
-
- $message = self::construct_comment($item, $contact);
- $message["author_signature"] = self::signature($contact, $message);
-
- /*
- * Now store the signature more flexible to dynamically support new fields.
- * This will break Diaspora compatibility with Friendica versions prior to 3.5.
- */
- dba::insert('sign', array('iid' => $message_id, 'signed_text' => json_encode($message)));
-
- logger('Stored diaspora comment signature');
- return true;
- }
-}
projects / friendica.git / blobdiff