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Add path based redirect #19

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merged 1 commit into from
Nov 1, 2023
Merged

Add path based redirect #19

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31 changes: 31 additions & 0 deletions apache/util.conf
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Original file line number Diff line number Diff line change
Expand Up @@ -54,3 +54,34 @@
CustomLog /var/log/apache2/util.berlin.freifunk.net-access.log combined
ErrorLog /var/log/apache2/util.berlin.freifunk.net-error.log
</VirtualHost>

<VirtualHost *:443>
ServerName ff.berlin
ServerAdmin "info@berlin.freifunk.net"
SSLEngine on
SSLCertificateFile /etc/letsencrypt/live/ff.berlin/cert.pem
SSLCertificateChainFile /etc/letsencrypt/live/ff.berlin/chain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/ff.berlin/privkey.pem

DocumentRoot /var/www/util.berlin.freifunk.net/www

<Directory /var/www/util.berlin.freifunk.net/www>
Options +FollowSymLinks -Indexes
AllowOverride None
Require all granted
</Directory>

# Always call the knoteninfo.php script
DirectoryIndex knoteninfo.php

# Deny access to all other PHP files
<FilesMatch "\.php$">
Require all denied
</FilesMatch>
<Files "knoteninfo.php">
Require all granted
</Files>

CustomLog /var/log/apache2/ff.berlin-access.log combined
ErrorLog /var/log/apache2/ff.berlin-error.log
</VirtualHost>
63 changes: 53 additions & 10 deletions www/knoteninfo.php
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Original file line number Diff line number Diff line change
@@ -1,14 +1,56 @@
<?php

// https://util.berlin.freifunk.net/knoteninfo?knoten=Zwingli-Nord-2GHz&typ=wiki
// Query based redirect
// Example: https://util.berlin.freifunk.net/knoteninfo?knoten=Zwingli-Nord-2GHz&typ=wiki
// typ: wiki, monitor, owm, hopglass
//
// Path based redirect
// Example: https://ff.berlin/d/linie206-core
// /d/ -> documentation (wiki)
// /m/ -> map (hopglass)
// /s/ -> statistics (monitor)

$path_elements = getPathElements($_SERVER['REQUEST_URI'], $_SERVER['SCRIPT_NAME']);

if (count($_GET)) {
$knoten = ($_GET["knoten"] ?? "%");
$typ = ($_GET["typ"] ?? "");
} else if (count($path_elements) == 2) {
switch ($path_elements[0]) {
case "d":
$typ = "wiki";
break;
case "m":
$typ = "hopglass";
break;
case "s":
$typ = "monitor";
break;
}
;
$knoten = $path_elements[1];
} else {
die("Keine gültige Anfrage.");
}

$knoten = ($_GET["knoten"] ?? "%");
$knoten = preg_replace("/\.olsr$/", "", $knoten);

if(preg_match('/[^A-Za-z0-9\\.\\-\\_]/', $knoten)) die("Ungültiger Knotenname.");

$typ = ($_GET["typ"] ?? "");

function getPathElements($request_uri, $script_name) {

if (strpos($request_uri, $script_name) === 0) {
$request_path = substr($request_uri, strlen($script_name));
} else {
$request_path = $request_uri;
}

$parsed_url = parse_url($request_path);
$path = $parsed_url['path'];
return explode('/', trim($path, '/'));
}


function getUrl($url) {
$ctx = stream_context_create(["http" => ["method" => "GET"]]);
Expand All @@ -18,7 +60,8 @@
return $res;
}

function getWikiLink($knoten) {

function getWikiLink($knoten){
$url = "https://wiki.freifunk.net/api.php?action=ask&query=[[Hat_Knoten%3A%3A".$knoten."]]|%3FModification%20date|sort%3DModification%20date|order%3Ddesc&format=json";
$body = getUrl($url);
$json = json_decode($body);
Expand All @@ -32,7 +75,7 @@
$owmurl = "https://openwifimap.net/#detail?node=".$knoten.".olsr";
$hgurl = "https://hopglass.berlin.freifunk.net/#!v:m;n:".$knoten.".olsr";

if($typ === "wiki") {

Check failure on line 78 in www/knoteninfo.php

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GitHub Actions / Lint Code Base 

Variable $typ might not be defined.

Check failure on line 78 in www/knoteninfo.php

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GitHub Actions / Lint Code Base 

Variable $typ might not be defined.
$url = getWikiLink($knoten);
if($url === false) {
header("HTTP/1.0 404 Not Found");
Expand All @@ -56,11 +99,11 @@

echo "<i>$knoten</i> auf...";
echo "<ul>".
"<li><a href=\"$owmurl\">openwifimap.net</a></li>".
"<li><a href=\"$hgurl\">hopglass.berlin.freifunk.net</a></li>".
"<li><a href=\"/knoteninfo?knoten=$knoten&typ=wiki\">wiki.freifunk.net</a></li>".
"<li><a href=\"$monurl\">monitor.berlin.freifunk.net</a></li>".
"</ul>".
"zu <a href=\"https://berlin.freifunk.net/\">berlin.freifunk.net</a></body>";
"<li><a href=\"$owmurl\">openwifimap.net</a></li>".
"<li><a href=\"$hgurl\">hopglass.berlin.freifunk.net</a></li>".
"<li><a href=\"/knoteninfo?knoten=$knoten&typ=wiki\">wiki.freifunk.net</a></li>".
"<li><a href=\"$monurl\">monitor.berlin.freifunk.net</a></li>".
"</ul>".
"zu <a href=\"https://berlin.freifunk.net/\">berlin.freifunk.net</a></body>";

?>