]> git.mxchange.org Git - friendica.git/blob - mod/fetch.php
Merge pull request #3439 from tobiasd/20170506-token
[friendica.git] / mod / fetch.php
1 <?php
2 /*
3 This file is part of the Diaspora protocol. It is used for fetching single public posts.
4 */
5
6 use Friendica\App;
7
8 require_once("include/crypto.php");
9 require_once("include/diaspora.php");
10 require_once("include/xml.php");
11
12 function fetch_init(App $a) {
13
14         if (($a->argc != 3) || (!in_array($a->argv[1], array("post", "status_message", "reshare")))) {
15                 header($_SERVER["SERVER_PROTOCOL"].' 404 '.t('Not Found'));
16                 killme();
17         }
18
19         $guid = $a->argv[2];
20
21         // Fetch the item
22         $item = q("SELECT `uid`, `title`, `body`, `guid`, `contact-id`, `private`, `created`, `app`, `location`, `coord`
23                         FROM `item` WHERE `wall` AND NOT `private` AND `guid` = '%s' AND `network` IN ('%s', '%s') AND `id` = `parent` LIMIT 1",
24                 dbesc($guid), NETWORK_DFRN, NETWORK_DIASPORA);
25         if (!$item) {
26                 $r = q("SELECT `author-link`
27                         FROM `item` WHERE `uid` = 0 AND `guid` = '%s' AND `network` IN ('%s', '%s') AND `id` = `parent` LIMIT 1",
28                         dbesc($guid), NETWORK_DFRN, NETWORK_DIASPORA);
29                 if ($r) {
30                         $parts = parse_url($r[0]["author-link"]);
31                         $host = $parts["scheme"]."://".$parts["host"];
32
33                         if (normalise_link($host) != normalise_link(App::get_baseurl())) {
34                                 $location = $host."/fetch/".$a->argv[1]."/".urlencode($guid);
35
36                                 header("HTTP/1.1 301 Moved Permanently");
37                                 header("Location:".$location);
38                                 killme();
39                         }
40                 }
41
42                 header($_SERVER["SERVER_PROTOCOL"].' 404 '.t('Not Found'));
43                 killme();
44         }
45
46         // Fetch some data from the author (We could combine both queries - but I think this is more readable)
47         $r = q("SELECT `user`.`prvkey`, `contact`.`addr`, `user`.`nickname`, `contact`.`nick` FROM `user`
48                 INNER JOIN `contact` ON `contact`.`uid` = `user`.`uid` AND `contact`.`self`
49                 WHERE `user`.`uid` = %d", intval($item[0]["uid"]));
50         if (!$r) {
51                 header($_SERVER["SERVER_PROTOCOL"].' 404 '.t('Not Found'));
52                 killme();
53         }
54         $user = $r[0];
55
56         $status = Diaspora::build_status($item[0], $user);
57         $xml = Diaspora::build_post_xml($status["type"], $status["message"]);
58
59         // Send the envelope
60         header("Content-Type: application/magic-envelope+xml; charset=utf-8");
61         echo Diaspora::build_magic_envelope($xml, $user);
62
63         killme();
64 }