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[DOCUMENTATION] New socialfy solution

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This commit is contained in:
Diogo Cordeiro
2019-07-15 01:29:39 +01:00
parent e0bc35b975
commit 36dd245ee3
5 changed files with 63 additions and 131 deletions
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DOCUMENTATION/SYSTEM_ADMINISTRATORS/socialfy-another-domain/README.md Normal file
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#Simple way to Webfinger enable your domain -- needs PHP
##Step 1
Put the 'dot-well-known' on your website, so it loads at:
https://another_cool.org/.well-known/
(Remember the . at the beginning of this one, which is common practice
for "hidden" files and why we have renamed it "dot-")
## Step 2
Edit the .well-known/webfinger/index.php file and replace "https://www.example.org/gnusocial/index.php" with the domain name
you're hosting the .well-known handler on.

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DOCUMENTATION/SYSTEM_ADMINISTRATORS/socialfy-another-domain/README.txt
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Initial simple way to Webfinger enable your domain -- needs PHP.
================================================================
This guide needs some updating, since it will only guide you to present
XML data (while the curl command likely gives you JSON). The workaround
is to simply make curl get 'webfinger.xml' instead, and/or have another
file that contains JSON, but that requires editing the PHP file as well.
Step 1
======
Put the 'dot-well-known' on your website, so it loads at:
https://example.com/.well-known/
(Remember the . at the beginning of this one, which is common practice
for "hidden" files and why we have renamed it "dot-")
Step 2
======
Edit the .well-known/host-meta file and replace "example.com" with the
domain name you're hosting the .well-known directory on.
Using vim you can do this as a quick method:
$ vim .well-known/host-meta [ENTER]
:%s/example.com/domain.com/ [ENTER]
:wq [ENTER]
Step 3
======
For each user on your site, and this might only be you...
In the webfinger directory, make a copy of the example@example.com.xml file
so that it's called (replace username and example.com with appropriate
values, the domain name should be the same as you're "socialifying"):
username@example.com.xml
Then edit the file contents, replacing "social.example.com" with your
GNU social instance's base path, and change the user ID number (and
nickname for the FOAF link) to that of your account on your social
site. If you don't know your user ID number, you can see this on your
GNU social profile page by looking at the destination URLs in the
Feeds links.
PROTIP: You can get the bulk of the contents (note the <Subject> element though)
from curling down your real webfinger data:
$ curl https://social.example.com/.well-known/webfinger?resource=acct:username@social.example.com
Finally
=======
Using this method, though fiddly, you can now be @user@domain without
the need for any prefixes for subdomains, etc.

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DOCUMENTATION/SYSTEM_ADMINISTRATORS/socialfy-another-domain/dot-well-known/host-meta
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<?xml version="1.0" encoding="UTF-8"?>
<XRD xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0" xmlns:hm="http://host-meta.net/xrd/1.0">
<Link rel="lrdd" type="application/xrd+xml"
template="https://example.com/.well-known/webfinger?resource={uri}"/>
</XRD>

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DOCUMENTATION/SYSTEM_ADMINISTRATORS/socialfy-another-domain/dot-well-known/webfinger/example@example.com.xml
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<?xml version="1.0" encoding="UTF-8"?>
<XRD xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0">
<Subject>acct:username@example.com</Subject>
<Alias>acct:username@social.example.com</Alias>
<Alias>https://social.example.com/user/1</Alias>
<Link rel="http://webfinger.net/rel/profile-page"
type="text/html"
href="https://social.example.com/user/1"/>
<Link rel="http://schemas.google.com/g/2010#updates-from"
type="application/atom+xml"
href="https://social.example.com/api/statuses/user_timeline/1.atom"/>
<!-- Is this/was this ever supported?
<Link rel="http://microformats.org/profile/hcard"
type="text/html"
href="https://social.example.com/hcard"/> -->
<Link rel="http://gmpg.org/xfn/11"
type="text/html"
href="https://social.example.com/user/1"/>
<Link rel="describedby"
type="application/rdf+xml"
href="https://social.example.com/username/foaf"/>
<Link rel="http://salmon-protocol.org/ns/salmon-replies"
href="https://social.example.com/main/salmon/user/1"/>
<Link rel="http://salmon-protocol.org/ns/salmon-mention"
href="https://social.example.com/main/salmon/user/1"/>
<Link rel="http://ostatus.org/schema/1.0/subscribe"
template="https://social.example.com/main/ostatussub?profile={uri}"/>
</XRD>

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DOCUMENTATION/SYSTEM_ADMINISTRATORS/socialfy-another-domain/dot-well-known/webfinger/index.php
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<?php
/*
* GNU social
* Copyright (C) 2010, Free Software Foundation, Inc
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
// FIXME: REPLACE \/ here
define('MY_GNUSOCIAL', 'https://www.example.org/gnusocial/index.php');
/**
* This is a general solution for when you can't have your GNU social instance in the domain root and for when you want to
* socialfy from another domain.
*/
// basename should make sure we can't escape this directory
$u = basename($_GET['resource']);
if (!strpos($u, '@')) {
throw new Exception('Bad resource');
exit(1);
// From https://www.php.net/manual/en/function.getallheaders.php#84262 (joyview at gmail dot com)
if (!function_exists('getallheaders')) {
function getallheaders()
{
$headers = [];
foreach ($_SERVER as $name => $value) {
if (substr($name, 0, 5) == 'HTTP_') {
$headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
}
}
return $headers;
}
}
$ch = curl_init();
curl_setopt($ch, CURLOPT_HTTPHEADER, getallheaders());
curl_setopt($ch, CURLOPT_URL, MY_GNUSOCIAL . str_replace('webfinger/', 'webfinger', $_SERVER['REQUEST_URI']));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, true);
$response = curl_exec($ch);
$header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
$body = substr($response, $header_size);
// From https://stackoverflow.com/a/10590242 (c.hill)
function get_headers_from_curl_response($response)
{
$headers = array();
if (mb_strpos($u, 'acct:')===0) {
$u = substr($u, 5);
$header_text = substr($response, 0, strpos($response, "\r\n\r\n"));
foreach (explode("\r\n", $header_text) as $i => $line) {
if ($i === 0) {
$headers['http_code'] = $line;
} else {
list($key, $value) = explode(': ', $line);
$headers[$key] = $value;
}
}
return $headers;
}
// Just to be a little bit safer, you know, with all the unicode stuff going on
$u = filter_var($u, FILTER_SANITIZE_EMAIL);
$f = $u . ".xml";
if (file_exists($f)) {
header('Content-Disposition: attachment; filename="'.urlencode($f).'"');
header('Content-type: application/xrd+xml');
echo file_get_contents($f);
$headers = get_headers_from_curl_response($response);
foreach ($headers as $name => $value) {
header("{$name}: $value");
}
echo $body;
curl_close($ch);