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Some code cleaning, changes to the xml generation

This commit is contained in:
Michael Vogel 2016-03-13 07:10:24 +01:00 committed by Roland Haeder
parent c9100e1102
commit 3e299aa7bf
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GPG Key ID: B72F8185C6C7BD78
2 changed files with 114 additions and 79 deletions
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183
include/diaspora2.php
View File

@ -20,7 +20,7 @@ require_once("include/datetime.php");
*/
class diaspora {
public static function fetch_relay() {
public static function relay_list() {
$serverdata = get_config("system", "relay_server");
if ($serverdata == "")
@ -277,13 +277,13 @@ class diaspora {
return false;
if (isset($parent_author_signature)) {
$key = self::get_key($msg["author"]);
$key = self::key($msg["author"]);
if (!rsa_verify($signed_data, $parent_author_signature, $key, "sha256"))
return false;
}
$key = self::get_key($fields->author);
$key = self::key($fields->author);
return rsa_verify($signed_data, $author_signature, $key, "sha256");
}
@ -295,10 +295,10 @@ class diaspora {
*
* @return string The public key
*/
private function get_key($handle) {
private function key($handle) {
logger("Fetching diaspora key for: ".$handle);
$r = self::get_person_by_handle($handle);
$r = self::person_by_handle($handle);
if($r)
return $r["pubkey"];
@ -312,7 +312,7 @@ class diaspora {
*
* @return array the queried data
*/
private function get_person_by_handle($handle) {
private function person_by_handle($handle) {
$r = q("SELECT * FROM `fcontact` WHERE `network` = '%s' AND `addr` = '%s' LIMIT 1",
dbesc(NETWORK_DIASPORA),
@ -407,7 +407,33 @@ class diaspora {
return $r;
}
private function get_contact_by_handle($uid, $handle) {
public static function handle_from_contact($contact_id) {
$handle = False;
logger("contact id is ".$contact_id, LOGGER_DEBUG);
$r = q("SELECT `network`, `addr`, `self`, `url`, `nick` FROM `contact` WHERE `id` = %d",
intval($contact_id)
);
if($r) {
$contact = $r[0];
logger("contact 'self' = ".$contact['self']." 'url' = ".$contact['url'], LOGGER_DEBUG);
if($contact['addr'] != "")
$handle = $contact['addr'];
elseif(($contact['network'] === NETWORK_DFRN) || ($contact['self'] == 1)) {
$baseurl_start = strpos($contact['url'],'://') + 3;
$baseurl_length = strpos($contact['url'],'/profile') - $baseurl_start; // allows installations in a subdirectory--not sure how Diaspora will handle
$baseurl = substr($contact['url'], $baseurl_start, $baseurl_length);
$handle = $contact['nick'].'@'.$baseurl;
}
}
return $handle;
}
private function contact_by_handle($uid, $handle) {
$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `addr` = '%s' LIMIT 1",
intval($uid),
dbesc($handle)
@ -459,8 +485,8 @@ class diaspora {
return false;
}
private function get_allowed_contact_by_handle($importer, $handle, $is_comment = false) {
$contact = self::get_contact_by_handle($importer["uid"], $handle);
private function allowed_contact_by_handle($importer, $handle, $is_comment = false) {
$contact = self::contact_by_handle($importer["uid"], $handle);
if (!$contact) {
logger("A Contact for handle ".$handle." and user ".$importer["uid"]." was not found");
return false;
@ -505,7 +531,7 @@ class diaspora {
logger("Trying to fetch item ".$guid." from ".$server, LOGGER_DEBUG);
$msg = self::fetch_message($guid, $server);
$msg = self::message($guid, $server);
if (!$msg)
return false;
@ -516,7 +542,7 @@ class diaspora {
return self::dispatch_public($msg);
}
private function fetch_message($guid, $server, $level = 0) {
private function message($guid, $server, $level = 0) {
if ($level > 5)
return false;
@ -534,10 +560,10 @@ class diaspora {
if ($source_xml->post->reshare) {
// Reshare of a reshare - old Diaspora version
return self::fetch_message($source_xml->post->reshare->root_guid, $server, ++$level);
return self::message($source_xml->post->reshare->root_guid, $server, ++$level);
} elseif ($source_xml->getName() == "reshare") {
// Reshare of a reshare - new Diaspora version
return self::fetch_message($source_xml->root_guid, $server, ++$level);
return self::message($source_xml->root_guid, $server, ++$level);
}
$author = "";
@ -554,12 +580,12 @@ class diaspora {
$msg = array("message" => $x, "author" => $author);
$msg["key"] = self::get_key($msg["author"]);
$msg["key"] = self::key($msg["author"]);
return $msg;
}
private function fetch_parent_item($uid, $guid, $author, $contact) {
private function parent_item($uid, $guid, $author, $contact) {
$r = q("SELECT `id`, `body`, `wall`, `uri`, `private`, `origin`,
`author-name`, `author-link`, `author-avatar`,
`owner-name`, `owner-link`, `owner-avatar`
@ -570,7 +596,7 @@ class diaspora {
$result = self::store_by_guid($guid, $contact["url"], $uid);
if (!$result) {
$person = self::get_person_by_handle($author);
$person = self::person_by_handle($author);
$result = self::store_by_guid($guid, $person["url"], $uid);
}
@ -592,7 +618,7 @@ class diaspora {
return $r[0];
}
private function get_author_contact_by_url($contact, $person, $uid) {
private function author_contact_by_url($contact, $person, $uid) {
$r = q("SELECT `id`, `network` FROM `contact` WHERE `nurl` = '%s' AND `uid` = %d LIMIT 1",
dbesc(normalise_link($person["url"])), intval($uid));
@ -636,7 +662,7 @@ class diaspora {
private function receive_account_deletion($importer, $data) {
$author = notags(unxmlify($data->author));
$contact = self::get_contact_by_handle($importer["uid"], $author);
$contact = self::contact_by_handle($importer["uid"], $author);
if (!$contact) {
logger("cannot find contact for author: ".$author);
return false;
@ -653,25 +679,25 @@ class diaspora {
$text = unxmlify($data->text);
$author = notags(unxmlify($data->author));
$contact = self::get_allowed_contact_by_handle($importer, $sender, true);
$contact = self::allowed_contact_by_handle($importer, $sender, true);
if (!$contact)
return false;
if (self::message_exists($importer["uid"], $guid))
return false;
$parent_item = self::fetch_parent_item($importer["uid"], $parent_guid, $author, $contact);
$parent_item = self::parent_item($importer["uid"], $parent_guid, $author, $contact);
if (!$parent_item)
return false;
$person = self::get_person_by_handle($author);
$person = self::person_by_handle($author);
if (!is_array($person)) {
logger("unable to find author details");
return false;
}
// Fetch the contact id - if we know this contact
$author_contact = self::get_author_contact_by_url($contact, $person, $importer["uid"]);
$author_contact = self::author_contact_by_url($contact, $person, $importer["uid"]);
$datarray = array();
@ -763,7 +789,7 @@ class diaspora {
$person = $contact;
$key = $msg["key"];
} else {
$person = self::get_person_by_handle($msg_author);
$person = self::person_by_handle($msg_author);
if (is_array($person) && x($person, "pubkey"))
$key = $person["pubkey"];
@ -852,7 +878,7 @@ class diaspora {
return false;
}
$contact = self::get_allowed_contact_by_handle($importer, $msg["author"], true);
$contact = self::allowed_contact_by_handle($importer, $msg["author"], true);
if (!$contact)
return false;
@ -907,22 +933,17 @@ class diaspora {
private function construct_like_object($importer, $parent_item) {
$objtype = ACTIVITY_OBJ_NOTE;
$link = xmlify('<link rel="alternate" type="text/html" href="'.App::get_baseurl()."/display/".$importer["nickname"]."/".$parent_item["id"].'" />'."\n") ;
$link = '<link rel="alternate" type="text/html" href="'.App::get_baseurl()."/display/".$importer["nickname"]."/".$parent_item["id"].'" />';
$parent_body = $parent_item["body"];
$obj = <<< EOT
$xmldata = array("object" => array("type" => $objtype,
"local" => "1",
"id" => $parent_item["uri"],
"link" => $link,
"title" => "",
"content" => $parent_body));
<object>
<type>$objtype</type>
<local>1</local>
<id>{$parent_item["uri"]}</id>
<link>$link</link>
<title></title>
<content>$parent_body</content>
</object>
EOT;
return $obj;
return xml::from_array($xmldata, $xml, true);
}
private function receive_like($importer, $sender, $data) {
@ -937,25 +958,25 @@ EOT;
if (!in_array($parent_type, array("Post", "Comment")))
return false;
$contact = self::get_allowed_contact_by_handle($importer, $sender, true);
$contact = self::allowed_contact_by_handle($importer, $sender, true);
if (!$contact)
return false;
if (self::message_exists($importer["uid"], $guid))
return false;
$parent_item = self::fetch_parent_item($importer["uid"], $parent_guid, $author, $contact);
$parent_item = self::parent_item($importer["uid"], $parent_guid, $author, $contact);
if (!$parent_item)
return false;
$person = self::get_person_by_handle($author);
$person = self::person_by_handle($author);
if (!is_array($person)) {
logger("unable to find author details");
return false;
}
// Fetch the contact id - if we know this contact
$author_contact = self::get_author_contact_by_url($contact, $person, $importer["uid"]);
$author_contact = self::author_contact_by_url($contact, $person, $importer["uid"]);
// "positive" = "false" would be a Dislike - wich isn't currently supported by Diaspora
// We would accept this anyhow.
@ -1019,7 +1040,7 @@ EOT;
$author = notags(unxmlify($data->author));
$conversation_guid = notags(unxmlify($data->conversation_guid));
$contact = self::get_allowed_contact_by_handle($importer, $author, true);
$contact = self::allowed_contact_by_handle($importer, $author, true);
if (!$contact)
return false;
@ -1041,7 +1062,7 @@ EOT;
$body = diaspora2bb($text);
$message_uri = $author.":".$guid;
$person = self::get_person_by_handle($author);
$person = self::person_by_handle($author);
if (!$person) {
logger("unable to find author details");
return false;
@ -1100,7 +1121,7 @@ EOT;
private function receive_profile($importer, $data) {
$author = notags(unxmlify($data->author));
$contact = self::get_contact_by_handle($importer["uid"], $author);
$contact = self::contact_by_handle($importer["uid"], $author);
if (!$contact)
return;
@ -1254,7 +1275,7 @@ EOT;
if (!$author || !$recipient)
return;
$contact = self::get_contact_by_handle($importer["uid"],$author);
$contact = self::contact_by_handle($importer["uid"],$author);
if($contact) {
@ -1265,7 +1286,7 @@ EOT;
return true;
}
$ret = self::get_person_by_handle($author);
$ret = self::person_by_handle($author);
if (!$ret || ($ret["network"] != NETWORK_DIASPORA)) {
logger("Cannot resolve diaspora handle ".$author ." for ".$recipient);
@ -1295,7 +1316,7 @@ EOT;
// find the contact record we just created
$contact_record = self::get_contact_by_handle($importer["uid"],$author);
$contact_record = self::contact_by_handle($importer["uid"],$author);
if (!$contact_record) {
logger("unable to locate newly created contact record.");
@ -1360,7 +1381,7 @@ EOT;
return true;
}
private function get_original_item($guid, $orig_author, $author) {
private function original_item($guid, $orig_author, $author) {
// Do we already have this item?
$r = q("SELECT `body`, `tag`, `app`, `created`, `object-type`, `uri`, `guid`,
@ -1424,14 +1445,14 @@ EOT;
$public = notags(unxmlify($data->public));
$created_at = notags(unxmlify($data->created_at));
$contact = self::get_allowed_contact_by_handle($importer, $author, false);
$contact = self::allowed_contact_by_handle($importer, $author, false);
if (!$contact)
return false;
if (self::message_exists($importer["uid"], $guid))
return false;
$original_item = self::get_original_item($root_guid, $root_author, $author);
$original_item = self::original_item($root_guid, $root_author, $author);
if (!$original_item)
return false;
@ -1482,7 +1503,7 @@ EOT;
$target_guid = notags(unxmlify($data->target_guid));
$author = notags(unxmlify($data->author));
$person = self::get_person_by_handle($author);
$person = self::person_by_handle($author);
if (!is_array($person)) {
logger("unable to find author detail for ".$author);
return false;
@ -1533,7 +1554,7 @@ EOT;
private function receive_retraction($importer, $sender, $data) {
$target_type = notags(unxmlify($data->target_type));
$contact = self::get_contact_by_handle($importer["uid"], $sender);
$contact = self::contact_by_handle($importer["uid"], $sender);
if (!$contact) {
logger("cannot find contact for sender: ".$sender." and user ".$importer["uid"]);
return false;
@ -1575,7 +1596,7 @@ EOT;
// print_r($poll);
// die("poll!\n");
//}
$contact = self::get_allowed_contact_by_handle($importer, $author, false);
$contact = self::allowed_contact_by_handle($importer, $author, false);
if (!$contact)
return false;
@ -1652,7 +1673,7 @@ EOT;
* Here come all the functions that are needed to transmit data with the Diaspora protocol *
*******************************************************************************************/
private function get_my_handle($me) {
private function my_handle($me) {
if ($contact["addr"] != "")
return $contact["addr"];
@ -1665,7 +1686,7 @@ EOT;
logger("Message: ".$msg, LOGGER_DATA);
$handle = self::get_my_handle($user);
$handle = self::my_handle($user);
$b64url_data = base64url_encode($msg);
@ -1694,7 +1715,7 @@ $magic_env = <<< EOT
</me:env>
</diaspora>
EOT;
die($magic_env."\n");
logger("magic_env: ".$magic_env, LOGGER_DATA);
return $magic_env;
}
@ -1720,7 +1741,7 @@ EOT;
$outer_iv = random_string(16);
$b_outer_iv = base64_encode($outer_iv);
$handle = self::get_my_handle($user);
$handle = self::my_handle($user);
$padded_data = pkcs5_pad($msg,16);
$inner_encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $inner_aes_key, $padded_data, MCRYPT_MODE_CBC, $inner_iv);
@ -1740,14 +1761,11 @@ EOT;
$signature = rsa_sign($signable_data,$prvkey);
$sig = base64url_encode($signature);
$decrypted_header = <<< EOT
<decrypted_header>
<iv>$b_inner_iv</iv>
<aes_key>$b_inner_aes_key</aes_key>
<author_id>$handle</author_id>
</decrypted_header>
EOT;
$xmldata = array("decrypted_header" => array("iv" => $b_inner_iv,
"aes_key" => $b_inner_aes_key,
"author_id" => $handle));
$decrypted_header = xml::from_array($xmldata, $xml, true);
$decrypted_header = pkcs5_pad($decrypted_header,16);
$ciphertext = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $outer_aes_key, $decrypted_header, MCRYPT_MODE_CBC, $outer_iv);
@ -1765,6 +1783,15 @@ EOT;
"ciphertext" => base64_encode($ciphertext)));
$cipher_json = base64_encode($encrypted_header_json_object);
$xml = nul;
$xmldata = array("diaspora" => array("encrypted_header" => $cipher_json,
"me:env" => array("me:encoding" => "base64url",
"me:alg" => "RSA-SHA256",
"me:data" => $data,
"me:sig" => $sig)));
$encrypted_header = xml::from_array($xmldata, $xml, true);
echo $encrypted_header."\n";
$encrypted_header = "<encrypted_header>".$cipher_json."</encrypted_header>";
$magic_env = <<< EOT
@ -1779,6 +1806,7 @@ $magic_env = <<< EOT
</me:env>
</diaspora>
EOT;
die($magic_env."\n");
logger("magic_env: ".$magic_env, LOGGER_DATA);
return $magic_env;
@ -1796,7 +1824,7 @@ EOT;
return $slap;
}
private function get_signature($owner, $message) {
private function signature($owner, $message) {
$sigmsg = $message;
unset($sigmsg["author_signature"]);
unset($sigmsg["parent_author_signature"]);
@ -1806,7 +1834,7 @@ EOT;
return base64_encode(rsa_sign($signed_text, $owner["uprvkey"], "sha256"));
}
private function transmit($owner, $contact, $slap, $public_batch, $queue_run=false, $guid = "") {
public static function transmit($owner, $contact, $slap, $public_batch, $queue_run=false, $guid = "") {
$a = get_app();
@ -1878,7 +1906,7 @@ die($slap);
public static function send_share($owner,$contact) {
$message = array("sender_handle" => self::get_my_handle($owner),
$message = array("sender_handle" => self::my_handle($owner),
"recipient_handle" => $contact["addr"]);
return self::build_and_transmit($owner, $contact, "request", $message);
@ -1887,7 +1915,7 @@ die($slap);
public static function send_unshare($owner,$contact) {
$message = array("post_guid" => $owner["guid"],
"diaspora_handle" => self::get_my_handle($owner),
"diaspora_handle" => self::my_handle($owner),
"type" => "Person");
return self::build_and_transmit($owner, $contact, "retraction", $message);
@ -1924,7 +1952,7 @@ die($slap);
dbesc($guid), NETWORK_DFRN, NETWORK_DIASPORA);
if ($r) {
$ret= array();
$ret["root_handle"] = diaspora_handle_from_contact($r[0]["contact-id"]);
$ret["root_handle"] = self::handle_from_contact($r[0]["contact-id"]);
$ret["root_guid"] = $guid;
return($ret);
}
@ -1962,7 +1990,7 @@ die($slap);
public static function send_status($item, $owner, $contact, $public_batch = false) {
$myaddr = self::get_my_handle($owner);
$myaddr = self::my_handle($owner);
$public = (($item["private"]) ? "false" : "true");
@ -2029,7 +2057,7 @@ die($slap);
private function construct_like($item, $owner) {
$myaddr = self::get_my_handle($owner);
$myaddr = self::my_handle($owner);
$p = q("SELECT `guid`, `uri`, `parent-uri` FROM `item` WHERE `uri` = '%s' LIMIT 1",
dbesc($item["thr-parent"]));
@ -2051,7 +2079,7 @@ die($slap);
private function construct_comment($item, $owner) {
$myaddr = self::get_my_handle($owner);
$myaddr = self::my_handle($owner);
$p = q("SELECT `guid` FROM `item` WHERE `parent` = %d AND `id` = %d LIMIT 1",
intval($item["parent"]),
@ -2085,7 +2113,7 @@ die($slap);
if (!$message)
return false;
$message["author_signature"] = self::get_signature($owner, $message);
$message["author_signature"] = self::signature($owner, $message);
return self::build_and_transmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
}
@ -2115,7 +2143,8 @@ die($slap);
$orig_sign = $r[0];
// Old way - can be removed for the master branch
// Old way - is used by the internal Friendica functions
/// @todo Change all signatur storing functions to the new format
if ($orig_sign['signed_text'] AND $orig_sign['signature'] AND $orig_sign['signer']) {
// Split the signed text
@ -2163,14 +2192,14 @@ die($slap);
$signed_text = $message["target_guid"].';'.$message["target_type"];
$message["parent_author_signature"] = base64_encode(rsa_sign($signed_text, $owner["uprvkey"], "sha256"));
} else
$message["parent_author_signature"] = self::get_signature($owner, $message);
$message["parent_author_signature"] = self::signature($owner, $message);
return self::build_and_transmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
}
public static function send_retraction($item, $owner, $contact, $public_batch = false) {
$myaddr = self::get_my_handle($owner);
$myaddr = self::my_handle($owner);
// Check whether the retraction is for a top-level post or whether it's a relayable
if ($item["uri"] !== $item["parent-uri"]) {
@ -2193,7 +2222,7 @@ die($slap);
public static function send_mail($item, $owner, $contact) {
$myaddr = self::get_my_handle($owner);
$myaddr = self::my_handle($owner);
$r = q("SELECT * FROM `conv` WHERE `id` = %d AND `uid` = %d LIMIT 1",
intval($item["convid"]),

10
include/xml.php
View File

@ -4,7 +4,7 @@
*
*/
class xml {
function from_array($array, &$xml) {
function from_array($array, &$xml, $remove_header = false) {
if (!is_object($xml)) {
foreach($array as $key => $value) {
@ -14,7 +14,13 @@ class xml {
$dom = dom_import_simplexml($root)->ownerDocument;
$dom->formatOutput = true;
$xml = $dom;
return $dom->saveXML();
$xml_text = $dom->saveXML();
if ($remove_header)
$xml_text = trim(substr($xml_text, 21));
return $xml_text;
}
}