<?php
function send_response($code, $message) {
http_response_code($code);
echo $message;
exit();
}
$request_url = filter_var($_SERVER["PHP_SELF"], FILTER_SANITIZE_URL);
if ($request_url === "/") {
send_response(200, "
<meta name='viewport' content='width=device-width, initial-scale=1.0'>
<html>
<head>
<title>Codeberg Pages</title>
</head>
<body>
<div style='height: 100%; display: flex; align-items: center; justify-content: center;'>
<center>
<h1>Codeberg Pages. Static Pages for your Projects.</h1>
<p>Create a repo named 'pages' in your user account or org, push static content, HTML, style, fonts, images.</p>
<p>Share your rendered content via: <pre>https://" . $_SERVER["HTTP_HOST"] . "/<username>/</pre></p>
<p>Welcome to <a href='https://codeberg.org'>Codeberg.org</a>!</p>
</center>
</div>
</body>
</html>
");
}
if (preg_match("/^\/[a-zA-Z0-9_ +\-\/\.]+\$/", $request_url) != 1) {
send_response(404, "invalid request URL");
}
$git_prefix = "/data/git/gitea-repositories";
$parts = explode("/", $request_url);
array_shift($parts); # remove empty first
$owner = strtolower(array_shift($parts));
$git_root = realpath("$git_prefix/$owner/pages.git");
if (substr($git_root, 0, strlen($git_prefix)) !== $git_prefix) {
send_response(404, "this user/organization does not have codeberg pages");
}
if (end($parts) === '') {
array_pop($parts);
}
$file_url = implode("/", $parts);
# If this is a folder or just empty, we add 'index.html' to the URL:
$command = "sh -c \"cd '$git_root' && /usr/bin/git ls-tree 'master:$file_url' > /dev/null\"";
exec($command, $output, $retval);
if ($retval == 0) {
if ($file_url == "" ) {
$file_url = "index.html";
} else {
$file_url .= "/index.html";
}
}
$ext = pathinfo($file_url, PATHINFO_EXTENSION);
$ext = strtolower($ext);
$mime_types = array(
"svg" => "image/svg+xml",
"png" => "image/png",
"jpg" => "image/jpeg",
"jpeg" => "image/jpeg",
"gif" => "image/gif",
"js" => "application/javascript",
"html" => "text/html",
"css" => "text/css",
"ico" => "image/x-icon",
"woff" => "font/woff",
"woff2" => "font/woff2",
"ttf" => "font/ttf"
);
if (array_key_exists($ext, $mime_types)) {
$mime_type = $mime_types[$ext];
} else {
$mime_type = "text/plain";
}
header("Content-Type: " . $mime_type);
$command = "sh -c \"cd '$git_root' && /usr/bin/git show 'master:$file_url'\"";
## We are executing command twice (first for send_response-checking, then for actual raw output to stream),
## which seems wasteful, but it seems exec+echo cannot do raw binary output? Is this true?
exec($command . " > /dev/null", $output, $retval);
if ($retval != 0) {
# Render user-provided 404.html if exists, generic 404 message if not:
http_response_code(404);
header("Content-Type: text/html");
$command = "sh -c \"cd '$git_root' && /usr/bin/git show 'master:404.html'\"";
exec($command . " > /dev/null", $output, $retval);
if ($retval != 0) {
send_response(404 , "no such file in repo: '" . htmlspecialchars($file_url) . "'");
}
}
## If we could directly exec+echo raw output from above, we wouldn't need to execute command twice:
passthru($command);