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Merge pull request #2650 from annando/1606-diaspora-fetch 

Diaspora: Support for new fetch functionality (replacement for /p/)
This commit is contained in:
Tobias Diekershoff 2016-06-30 09:47:40 +02:00 committed by GitHub
parent 3a5d98507d 6f203b0a75
commit cb3704ab43
5 changed files with 179 additions and 70 deletions
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96
include/diaspora.php
View File

@ -2256,6 +2256,40 @@ class diaspora {
return $nick."@".substr(App::get_baseurl(), strpos(App::get_baseurl(),"://") + 3);
}
/**
* @brief Creates the envelope for the "fetch" endpoint
*
* @param string $msg The message that is to be transmitted
* @param array $user The record of the sender
*
* @return string The envelope
*/
function build_magic_envelope($msg, $user) {
$b64url_data = base64url_encode($msg);
$data = str_replace(array("\n", "\r", " ", "\t"), array("", "", "", ""), $b64url_data);
$key_id = base64url_encode(diaspora::my_handle($user));
$type = "application/xml";
$encoding = "base64url";
$alg = "RSA-SHA256";
$signable_data = $data.".".base64url_encode($type).".".base64url_encode($encoding).".".base64url_encode($alg);
$signature = rsa_sign($signable_data, $user["prvkey"]);
$sig = base64url_encode($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 Creates the envelope for a public message
*
@ -2287,11 +2321,11 @@ class diaspora {
$sig = base64url_encode($signature);
$xmldata = array("diaspora" => array("header" => array("author_id" => $handle),
"me:env" => array("me:encoding" => "base64url",
"me:alg" => "RSA-SHA256",
"me:data" => $data,
"@attributes" => array("type" => "application/xml"),
"me:sig" => $sig)));
"me:env" => array("me:encoding" => $encoding,
"me:alg" => $alg,
"me:data" => $data,
"@attributes" => array("type" => $type),
"me:sig" => $sig)));
$namespaces = array("" => "https://joindiaspora.com/protocol",
"me" => "http://salmon-protocol.org/ns/magic-env");
@ -2377,10 +2411,10 @@ class diaspora {
$cipher_json = base64_encode($encrypted_header_json_object);
$xmldata = array("diaspora" => array("encrypted_header" => $cipher_json,
"me:env" => array("me:encoding" => "base64url",
"me:alg" => "RSA-SHA256",
"me:env" => array("me:encoding" => $encoding,
"me:alg" => $alg,
"me:data" => $data,
"@attributes" => array("type" => "application/xml"),
"@attributes" => array("type" => $type),
"me:sig" => $sig)));
$namespaces = array("" => "https://joindiaspora.com/protocol",
@ -2498,6 +2532,20 @@ class diaspora {
}
/**
* @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) {
$data = array("XML" => array("post" => array($type => $message)));
return xml::from_array($data, $xml);
}
/**
* @brief Builds and transmit messages
*
@ -2513,9 +2561,7 @@ class diaspora {
*/
private function build_and_transmit($owner, $contact, $type, $message, $public_batch = false, $guid = "", $spool = false) {
$data = array("XML" => array("post" => array($type => $message)));
$msg = xml::from_array($data, $xml);
$msg = self::build_post_xml($type, $message);
logger('message: '.$msg, LOGGER_DATA);
logger('send guid '.$guid, LOGGER_DEBUG);
@ -2647,16 +2693,16 @@ class diaspora {
}
/**
* @brief Sends a post
* @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
* @param array $contact Target of the communication
* @param bool $public_batch Is it a public post?
*
* @return int The result of the transmission
* @return array
* 'type' -> Message type ("status_message" or "reshare")
* 'message' -> Array of XML elements of the status
*/
public static function send_status($item, $owner, $contact, $public_batch = false) {
public static function build_status($item, $owner) {
$myaddr = self::my_handle($owner);
@ -2719,8 +2765,24 @@ class diaspora {
$type = "status_message";
}
return array("type" => $type, "message" => $message);
}
return self::build_and_transmit($owner, $contact, $type, $message, $public_batch, $item["guid"]);
/**
* @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) {
$status = diaspora::build_status($item, $owner);
return self::build_and_transmit($owner, $contact, $status["type"], $status["message"], $public_batch, $item["guid"]);
}
/**

19
include/notifier.php
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@ -132,18 +132,25 @@ function notifier_run(&$argv, &$argc){
$recipients[] = $suggest[0]['cid'];
$item = $suggest[0];
} elseif($cmd === 'removeme') {
$r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($item_id));
if (! $r)
$r = q("SELECT `contact`.*, `user`.`pubkey` AS `upubkey`, `user`.`prvkey` AS `uprvkey`,
`user`.`timezone`, `user`.`nickname`, `user`.`sprvkey`, `user`.`spubkey`,
`user`.`page-flags`, `user`.`prvnets`
FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
WHERE `contact`.`uid` = %d AND `contact`.`self` LIMIT 1",
intval($item_id));
if (!$r)
return;
$user = $r[0];
$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1", intval($item_id));
if (! $r)
$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` LIMIT 1", intval($item_id));
if (!$r)
return;
$self = $r[0];
$r = q("SELECT * FROM `contact` WHERE `self` = 0 AND `uid` = %d", intval($item_id));
if(! $r)
$r = q("SELECT * FROM `contact` WHERE NOT `self` AND `uid` = %d", intval($item_id));
if(!$r)
return;
require_once('include/Contact.php');

2
include/xml.php
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@ -44,7 +44,7 @@ class xml {
}
foreach($array as $key => $value) {
if ($key == "@attributes") {
if (substr($key, 0, 11) == "@attributes") {
if (!isset($element) OR !is_array($value))
continue;

59
mod/fetch.php Normal file
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@ -0,0 +1,59 @@
<?php
/*
This file is part of the Diaspora protocol. It is used for fetching single public posts.
*/
require_once("include/crypto.php");
require_once("include/diaspora.php");
require_once("include/xml.php");
function fetch_init($a){
if (($a->argc != 3) OR (!in_array($a->argv[1], array("post", "status_message", "reshare")))) {
header($_SERVER["SERVER_PROTOCOL"].' 404 '.t('Not Found'));
killme();
}
$guid = $a->argv[2];
// Fetch the item
$item = q("SELECT `uid`, `title`, `body`, `guid`, `contact-id`, `private`, `created`, `app`, `location`, `coord`
FROM `item` WHERE `wall` AND NOT `private` AND `guid` = '%s' AND `network` IN ('%s', '%s') AND `id` = `parent` LIMIT 1",
dbesc($guid), NETWORK_DFRN, NETWORK_DIASPORA);
if (!$item) {
$r = q("SELECT `author-link`
FROM `item` WHERE `uid` = 0 AND `guid` = '%s' AND `network` IN ('%s', '%s') AND `id` = `parent` LIMIT 1",
dbesc($guid), NETWORK_DFRN, NETWORK_DIASPORA);
if ($r) {
$parts = parse_url($r[0]["author-link"]);
$host = $parts["scheme"]."://".$parts["host"];
$location = $host."/fetch/".$a->argv[1]."/".urlencode($guid);
header("HTTP/1.1 301 Moved Permanently");
header("Location:".$location);
killme();
}
header($_SERVER["SERVER_PROTOCOL"].' 404 '.t('Not Found'));
killme();
}
// Fetch some data from the author (We could combine both queries - but I think this is more readable)
$r = q("SELECT `user`.`prvkey`, `contact`.`addr`, `user`.`nickname`, `contact`.`nick` FROM `user`
INNER JOIN `contact` ON `contact`.`uid` = `user`.`uid`
WHERE `user`.`uid` = %d", intval($item[0]["uid"]));
if (!$r) {
header($_SERVER["SERVER_PROTOCOL"].' 404 '.t('Not Found'));
killme();
}
$user = $r[0];
$status = diaspora::build_status($item[0], $user);
$xml = diaspora::build_post_xml($status["type"], $status["message"]);
// Send the envelope
header("Content-Type: application/magic-envelope+xml; charset=utf-8");
echo diaspora::build_magic_envelope($xml, $user);
killme();
}

73
mod/p.php
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@ -19,62 +19,43 @@ function p_init($a){
$guid = strtolower(substr($guid, 0, -4));
$item = q("SELECT `title`, `body`, `guid`, `contact-id`, `private`, `created`, `app` FROM `item` WHERE `uid` = 0 AND `guid` = '%s' AND `network` IN ('%s', '%s') AND `id` = `parent` LIMIT 1",
// Fetch the item
$item = q("SELECT `uid`, `title`, `body`, `guid`, `contact-id`, `private`, `created`, `app`, `location`, `coord`
FROM `item` WHERE `wall` AND NOT `private` AND `guid` = '%s' AND `network` IN ('%s', '%s') AND `id` = `parent` LIMIT 1",
dbesc($guid), NETWORK_DFRN, NETWORK_DIASPORA);
if (!$item) {
$r = q("SELECT `author-link`
FROM `item` WHERE `uid` = 0 AND `guid` = '%s' AND `network` IN ('%s', '%s') AND `id` = `parent` LIMIT 1",
dbesc($guid), NETWORK_DFRN, NETWORK_DIASPORA);
if ($r) {
$parts = parse_url($r[0]["author-link"]);
$host = $parts["scheme"]."://".$parts["host"];
$location = $host."/p/".urlencode($guid).".xml";
header("HTTP/1.1 301 Moved Permanently");
header("Location:".$location);
killme();
}
header($_SERVER["SERVER_PROTOCOL"].' 404 '.t('Not Found'));
killme();
}
$post = array();
$reshared = diaspora::is_reshare($item[0]["body"]);
if ($reshared) {
$nodename = "reshare";
$post["root_diaspora_id"] = $reshared["root_handle"];
$post["root_guid"] = $reshared["root_guid"];
$post["guid"] = $item[0]["guid"];
$post["diaspora_handle"] = diaspora::handle_from_contact($item[0]["contact-id"]);
$post["public"] = (!$item[0]["private"] ? 'true':'false');
$post["created_at"] = datetime_convert('UTC','UTC',$item[0]["created"]);
} else {
$body = bb2diaspora($item[0]["body"]);
if(strlen($item[0]["title"]))
$body = "## ".html_entity_decode($item[0]["title"])."\n\n".$body;
$nodename = "status_message";
$post["raw_message"] = str_replace("&", "&amp;", $body);
$post["guid"] = $item[0]["guid"];
$post["diaspora_handle"] = diaspora::handle_from_contact($item[0]["contact-id"]);
$post["public"] = (!$item[0]["private"] ? 'true':'false');
$post["created_at"] = datetime_convert('UTC','UTC',$item[0]["created"]);
$post["provider_display_name"] = $item[0]["app"];
// Fetch some data from the author (We could combine both queries - but I think this is more readable)
$r = q("SELECT `user`.`prvkey`, `contact`.`addr`, `user`.`nickname`, `contact`.`nick` FROM `user`
INNER JOIN `contact` ON `contact`.`uid` = `user`.`uid`
WHERE `user`.`uid` = %d", intval($item[0]["uid"]));
if (!$r) {
header($_SERVER["SERVER_PROTOCOL"].' 404 '.t('Not Found'));
killme();
}
$user = $r[0];
$dom = new DOMDocument("1.0");
$root = $dom->createElement("XML");
$dom->appendChild($root);
$postelement = $dom->createElement("post");
$root->appendChild($postelement);
$statuselement = $dom->createElement($nodename);
$postelement->appendChild($statuselement);
foreach($post AS $index => $value) {
$postnode = $dom->createElement($index, $value);
$statuselement->appendChild($postnode);
}
$status = diaspora::build_status($item[0], $user);
$xml = diaspora::build_post_xml($status["type"], $status["message"]);
header("Content-Type: application/xml; charset=utf-8");
$xml = $dom->saveXML();
// Diaspora doesn't send the XML header, so we remove them as well.
// So we avoid possible compatibility problems.
if (substr($xml, 0, 21) == '<?xml version="1.0"?>')
$xml = trim(substr($xml, 21));
echo $xml;
killme();