From 5e0255e36bf156b973d6ab46192daa88891c0027 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michael=20Gro=C3=9Fe?= <grosse@cosmocode.de>
Date: Wed, 24 Jan 2018 14:24:48 +0100
Subject: [PATCH] feat: provide web app manifest (dynamically geneated)
---
inc/config_cascade.php | 4 ++
inc/template.php | 4 ++
lib/exe/manifest.php | 134 +++++++++++++++++++++++++++++++++++++++++
3 files changed, 142 insertions(+)
create mode 100644 lib/exe/manifest.php
diff --git a/inc/config_cascade.php b/inc/config_cascade.php
index 2466290bc..f0aa6cc7e 100644
--- a/inc/config_cascade.php
+++ b/inc/config_cascade.php
@@ -28,6 +28,10 @@ $config_cascade = array_merge(
'default' => array(DOKU_CONF . 'license.php'),
'local' => array(DOKU_CONF . 'license.local.php'),
),
+ 'manifest' => array(
+ 'default' => array(DOKU_CONF . 'manifest.json'),
+ 'local' => array(DOKU_CONF . 'manifest.local.json'),
+ ),
'mediameta' => array(
'default' => array(DOKU_CONF . 'mediameta.php'),
'local' => array(DOKU_CONF . 'mediameta.local.php'),
diff --git a/inc/template.php b/inc/template.php
index c44cd064c..b9fe96085 100644
--- a/inc/template.php
+++ b/inc/template.php
@@ -242,6 +242,10 @@ function tpl_metaheaders($alt = true) {
);
}
+ if (actionOK('manifest')) {
+ $head['link'][] = array('rel'=> 'manifest', 'href'=> DOKU_BASE.'lib/exe/manifest.php');
+ }
+
if($alt) {
if(actionOK('rss')) {
$head['link'][] = array(
diff --git a/lib/exe/manifest.php b/lib/exe/manifest.php
new file mode 100644
index 000000000..5f22f1ccf
--- /dev/null
+++ b/lib/exe/manifest.php
@@ -0,0 +1,134 @@
+<?php
+
+if (!defined('DOKU_INC')) {
+ define('DOKU_INC', __DIR__ . '/../../');
+}
+require_once(DOKU_INC . 'inc/init.php');
+
+class Manifest {
+ public function run() {
+ $manifest = retrieveConfig('manifest', [$this, 'jsonToArray']);
+
+ global $conf;
+
+ if (empty($manifest['name'])) {
+ $manifest['name'] = $conf['title'];
+ }
+
+ if (empty($manifest['short_name'])) {
+ $manifest['short_name'] = $conf['title'];
+ }
+
+ if (empty($manifest['description'])) {
+ $manifest['description'] = $conf['tagline'];
+ }
+
+ if (empty($manifest['start_url'])) {
+ $manifest['start_url'] = DOKU_REL;
+ }
+
+ if (empty($manifest['icons'])) {
+ $manifest['icons'] = [];
+ $look = [
+ ':wiki:logo.png',
+ ':logo.png',
+ 'images/logo.png',
+ ':wiki:apple-touch-icon.png',
+ ':apple-touch-icon.png',
+ 'images/apple-touch-icon.png',
+ ':wiki:favicon.svg',
+ ':favicon.svg',
+ 'images/favicon.svg',
+ ':wiki:favicon.ico',
+ ':favicon.ico',
+ 'images/favicon.ico',
+ ':wiki:logo',
+ ];
+
+ $abs = true;
+ foreach($look as $img) {
+ if($img[0] === ':') {
+ $file = mediaFN($img);
+ $ismedia = true;
+ } else {
+ $file = tpl_incdir().$img;
+ $ismedia = false;
+ }
+
+ if (file_exists($file)) {
+ $imginfo = getimagesize($file);
+ if($ismedia) {
+ $url = ml($img, '', true, '', $abs);
+ } else {
+ $url = tpl_basedir().$img;
+ if($abs) $url = DOKU_URL.substr($url, strlen(DOKU_REL));
+ }
+ $manifest['icons'][] = [
+ 'src' => $url,
+ 'sizes' => $imginfo[0] . 'x' . $imginfo[1],
+ 'type' => $imginfo['mime'],
+ ];
+ };
+ }
+ }
+
+ trigger_event('MANIFEST_SEND', $manifest);
+
+ header('Content-Type: application/manifest+json');
+ echo json_encode($manifest);
+ }
+
+ public function jsonToArray($file)
+ {
+ $json = file_get_contents($file);
+
+ $conf = json_decode($json, true);
+
+ $jsonError = json_last_error();
+ if (!is_array($conf) && $jsonError !== JSON_ERROR_NONE) {
+
+ switch ($jsonError) {
+ case JSON_ERROR_DEPTH:
+ $jsonErrorText = 'The maximum stack depth has been exceeded';
+ break;
+ case JSON_ERROR_STATE_MISMATCH:
+ $jsonErrorText = 'Invalid or malformed JSON';
+ break;
+ case JSON_ERROR_CTRL_CHAR:
+ $jsonErrorText = 'Control character error, possibly incorrectly encoded';
+ break;
+ case JSON_ERROR_SYNTAX:
+ $jsonErrorText = 'Syntax error';
+ break;
+ case JSON_ERROR_UTF8:
+ $jsonErrorText = 'Malformed UTF-8 characters, possibly incorrectly encoded';
+ break;
+ case JSON_ERROR_RECURSION:
+ $jsonErrorText = 'One or more recursive references in the value to be encoded';
+ break;
+ case JSON_ERROR_INF_OR_NAN:
+ $jsonErrorText = 'One or more NAN or INF values in the value to be encoded';
+ break;
+ case JSON_ERROR_UNSUPPORTED_TYPE:
+ $jsonErrorText = 'A value of a type that cannot be encoded was given';
+ break;
+ case JSON_ERROR_INVALID_PROPERTY_NAME:
+ $jsonErrorText = 'A property name that cannot be encoded was given';
+ break;
+ case JSON_ERROR_UTF16:
+ $jsonErrorText = 'Malformed UTF-16 characters, possibly incorrectly encoded';
+ break;
+ default:
+ $jsonErrorText = 'Unknown Error Code';
+ }
+
+ trigger_error('JSON decoding error "' . $jsonErrorText . '" for file ' . $file, E_USER_WARNING);
+ return [];
+ }
+
+ return $conf;
+ }
+}
+
+$manifest = new Manifest();
+$manifest->run();
--
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