Diaspora uses this to fetch single public items.

diff --git a/mod/p.php b/mod/p.php
new file mode 100644 (file)
index 0000000..6bae992
--- /dev/null
+++ b/mod/p.php
@@ -0,0 +1,75 @@
+<?php
+/*
+This file is part of the Diaspora protocol. It is used for fetching single public posts.
+*/
+require_once("include/diaspora.php");
+
+function p_init($a){
+       if ($a->argc != 2) {
+               header($_SERVER["SERVER_PROTOCOL"].' 510 '.t('Not Extended'));
+               killme();
+       }
+
+       $guid = $a->argv[1];
+
+       if (strtolower(substr($guid, -4)) != ".xml") {
+               header($_SERVER["SERVER_PROTOCOL"].' 404 '.t('Not Found'));
+               killme();
+       }
+
+       $guid = strtolower(substr($guid, 0, -4));
+
+       $item = q("SELECT `body`, `guid`, `contact-id`, `private`, `created`, `app` FROM `item` WHERE `uid` = 0 AND `guid` = '%s' AND `network` IN ('%s', '%s') LIMIT 1",
+               dbesc($guid), NETWORK_DFRN, NETWORK_DIASPORA);
+       if (!$item) {
+               header($_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 {
+               $nodename = "status_message";
+               $post["raw_message"] = str_replace("&", "&amp;", bb2diaspora($item[0]["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"];
+       }
+
+       $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);
+       }
+
+       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();
+}