X-Git-Url: http://git.shiar.nl/minimedit.git/blobdiff_plain/bcf10b57432fab3081d2c5c95f210711adc8e60b..34be7d127264397af1f2fc8d0ce45fd408b31eb4:/page.php diff --git a/page.php b/page.php index 175c2eb..a4440cb 100644 --- a/page.php +++ b/page.php @@ -2,147 +2,18 @@ error_reporting(E_ALL); ini_set('display_errors', TRUE); -function abort($body, $status = NULL) { - if ($status) header("HTTP/1.1 $status"); - print "$body\n"; - exit; -} - -function placeholder_include($name, $params = []) -{ - $path = stream_resolve_include_path("$name.php"); - if (!file_exists($path)) { - return ''.$name.' ontbreekt'; - } - - ob_start(); - $Page = $GLOBALS['Page'] . $GLOBALS['Args']; - $Args = ''; - $Place = $GLOBALS['Place']; - foreach ($params as $param) { - if ($set = strpos($param, '=')) { - $Place[ substr($param, 0, $set) ] = substr($param, $set + 1); - } - elseif (!empty($param)) { - $Args .= '/'.$param; - } - } - try { - include "$name.php"; - return ob_get_clean(); - } - catch (Exception $e) { - return sprintf('%s', - "fout in $name: {$e->getMessage()}" - ); - } -} - -function getoutput($blocks = []) -{ - $doc = ob_get_clean(); - - if (!empty($blocks['warn'])) { - $warn = '

[[warn]]

'; - if ($offset = strpos($doc, '')) { - $doc = substr_replace($doc, "\n\n".$warn, $offset + 5, 0); - } - else { - $doc = $warn . "\n\n" . $doc; - } - } - - return preg_replace_callback( - '< \[\[ ([^] ]+) ([^]]*) \]\] >x', - function ($sub) use ($blocks) { - list ($placeholder, $name, $params) = $sub; - if (isset($blocks[$name])) { - $html = $blocks[$name]; - } - else { - $html = placeholder_include($name, explode(' ', $params)); - } - return sprintf('%s', - is_numeric($name) ? '' : $placeholder, # edit replacement - preg_replace('{}', '', $html) # contents - ); - }, - $doc - ); -} - -# custom error handling - define('DOCROOT', getcwd()); set_include_path(implode(PATH_SEPARATOR, [ DOCROOT, __DIR__ ])); -function fail($error) -{ - http_response_code(500); - include_once 'page.inc.php'; - ob_start(); - require_once '500.html'; - print getoutput(['debug' => $error]); -} - -set_exception_handler('fail'); - -define('E_FATAL', E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR | E_USER_ERROR); +include_once 'error.inc.php'; -set_error_handler(function ($level, $error, $file, $line) { - if ($level & E_FATAL) { - fail($error); - return; - } - return FALSE; -}); - -register_shutdown_function(function () { - # display failure page for fatal exceptions - $error = error_get_last(); - if (!($error['type'] & E_FATAL)) return; - fail("Fatal: $error[message] in $error[file]:$error[line]"); -}); +# setup requested page -error_reporting(error_reporting() & ~E_FATAL); +$request = preg_replace('/\?.*/', '', @$_SERVER['PATH_INFO'] ?: $_SERVER['REQUEST_URI']); +$request = urldecode(trim($request, '/')) ?: 'index'; -# user login and control - -include_once 'auth.inc.php'; -$Edit = isset($_GET['edit']); - -# distinguish subpage Args from topmost Page script - -$Args = ''; -$Page = preg_replace('/\?.*/', '', @$_SERVER['PATH_INFO'] ?: $_SERVER['REQUEST_URI']); -$Page = urldecode(trim($Page, '/')) ?: 'index'; -while (TRUE) { - if (file_exists("$Page/.private")) { - # access restriction - if (empty($User)) { - http_response_code(303); - $target = urlencode($_SERVER['REQUEST_URI']); - header("Location: /login?goto=$target"); - exit; - } - $PageAccess = $Page; - } - - if (file_exists("$Page/index.php")) { - break; - } - - $up = strrpos($Page, '/'); - $Args = substr($Page, $up) . $Args; - $Page = substr($Page, 0, $up); - if ($up === FALSE) { - break; - } -} - -$staticpage = NULL; -if (file_exists("$Page$Args.html")) { - $staticpage = "$Page$Args.html"; +$staticpage = "$request.html"; +if (file_exists($staticpage)) { if (is_link($staticpage)) { $target = preg_replace('/\.html$/', '', readlink($staticpage)); header("HTTP/1.1 302 Shorthand"); @@ -150,45 +21,81 @@ if (file_exists("$Page$Args.html")) { exit; } } -elseif (file_exists("$Page$Args/index.html")) { - $staticpage = "$Page$Args/index.html"; -} -elseif (!empty($User['admin'])) { - $staticpage = (file_exists("$Page/template.html") ? "$Page/template.html" : 'template.html'); +elseif (file_exists("$request/index.html")) { + $staticpage = "$request/index.html"; } -# load static contents +require_once('article.inc.php'); +$Page = new ArchiveArticle($staticpage); + +# user login and control -ob_start(); # page body -ob_start(); # inner html -print '
'."\n\n"; +include_once 'auth.inc.php'; // sets global $User -$found = FALSE; -if (isset($staticpage)) { - $found = include "./$staticpage"; +if ($Page->restricted) { + # access restriction + if (!$User->login) { + http_response_code(303); + $target = urlencode($Page->link); + header("Location: /login?goto=$target"); + exit; + } } -print "
\n\n"; +# prepare page contents -# execute dynamic code +header(sprintf('Content-Security-Policy: %s', implode('; ', [ + "default-src 'self' 'unsafe-inline' http://cdn.ckeditor.com", # some overrides remain + "img-src 'self' data: http://cdn.ckeditor.com", # inline svg (in css) + "base-uri 'self'", # only local pages + "frame-ancestors 'none'", # prevent malicious embedding +]))); -$Place = []; +$Page->place += [ + 'user' => $User->login ?: '', + 'url' => htmlspecialchars($_SERVER['REQUEST_URI']), +]; -if ($Page) { - $found |= require "./$Page/index.php"; +if (!isset($Page->raw) and $User->admin("edit {$Page->link}")) { + # open bottom template as initial contents + $template = 'template.inc.html'; + if ($Page->handler and file_exists("{$Page->handler}/$template")) { + $template = "{$Page->handler}/$template"; + } + $Page->raw($template); + $Page->meta['article:published_time'] = date('Y-m-d h:i:s O'); + $Page->meta['article:author'] = '/' . $User->dir; + $Page->body = NULL; } -$Place += [ - 'user' => empty($User) ? '' : $User['name'], - 'url' => htmlspecialchars($_SERVER['REQUEST_URI']), -]; +if (isset($Page->raw)) { + if ($User->admin("edit {$Page->link}")) { + # restore meta tags in static contents for editing + foreach (array_reverse($Page->meta) as $metaprop => $val) { + $Page->raw = sprintf( + ''."\n", + $metaprop, $val + ) . $Page->raw; + } + } + $Page->raw = '
'."\n\n".$Page->raw."
\n\n"; +} -# global html +# output dynamic and/or static html -if (!$found) { - # no resulting output - http_response_code(404); - @require '404.html'; +ob_start(); +if ($Page->handler and !require("./{$Page->handler}/index.php")) { + # replace contents by code output on false return + $Page->raw = ob_get_clean(); +} +else { + # keep article contents + if (!isset($Page->body)) { + # no resulting output + http_response_code(404); + @require '404.inc.html'; + $Page->raw = ob_get_clean() . $Page->raw; + } } include_once 'page.inc.php';