diff --git a/engine/skin.php b/engine/skin.php
index bbb9f3e..149d85e 100644
--- a/engine/skin.php
+++ b/engine/skin.php
@@ -95,9 +95,48 @@ function add_static(string ...$files): void {
$SkinState->static[] = $file;
}
-function add_meta(array ...$data) {
+function add_meta(array $data) {
global $SkinState;
- $SkinState->meta = array_merge($SkinState->meta, $data);
+ static $twitter_limits = [
+ 'title' => 70,
+ 'description' => 200
+ ];
+ $real_meta = [];
+ $add_og_twitter = function($key, $value) use (&$real_meta, $twitter_limits) {
+ foreach (['og', 'twitter'] as $social) {
+ if ($social == 'twitter' && isset($twitter_limits[$key])) {
+ if (mb_strlen($value) > $twitter_limits[$key])
+ $value = mb_substr($value, 0, $twitter_limits[$key]-3).'...';
+ }
+ $real_meta[] = [
+ $social == 'twitter' ? 'name' : 'property' => $social.':'.$key,
+ 'content' => $value
+ ];
+ }
+ };
+ foreach ($data as $key => $value) {
+ switch ($key) {
+ case '$url':
+ case '$title':
+ case '$image':
+ $add_og_twitter(substr($key, 1), $value);
+ break;
+
+ case '$description':
+ $add_og_twitter(substr($key, 1), $value);
+ $real_meta[] = ['name' => 'description', 'content' => $value];
+ break;
+
+ default:
+ if (str_starts_with($key, 'og:')) {
+ $real_meta[] = ['property' => $key, 'content' => $value];
+ } else {
+ logWarning("unsupported meta: $key => $value");
+ }
+ break;
+ }
+ }
+ $SkinState->meta = array_merge($SkinState->meta, $real_meta);
}
diff --git a/handler/MainHandler.php b/handler/MainHandler.php
index 8c6f259..78af66c 100644
--- a/handler/MainHandler.php
+++ b/handler/MainHandler.php
@@ -3,6 +3,15 @@
class MainHandler extends request_handler {
function GET_index() {
+ global $config;
+ add_meta([
+ 'og:type' => 'website',
+ '$url' => 'https://'.$config['domain'].'/',
+ '$title' => lang('meta_index_title'),
+ '$description' => lang('meta_index_description'),
+ '$image' => 'https://'.$config['domain'].'/img/4in1-preview.jpg'
+ ]);
+
set_title('$site_title');
set_skin_opts(['is_index' => true]);
render('main/index');
@@ -77,18 +86,13 @@ class MainHandler extends request_handler {
$other_langs[] = $pl->value;
}
- add_meta(
- ['property' => 'og:title', 'content' => $pt->title],
- ['property' => 'og:url', 'content' => $config['domain'].$post->getUrl()]
- );
- if (($img = $pt->getFirstImage()) !== null)
- add_meta(['property' => 'og:image', 'content' => $img->getDirectUrl()]);
-
add_meta([
- 'name' => 'description',
- 'property' => 'og:description',
- 'content' => $pt->getDescriptionPreview(155)
+ '$title' => $pt->title,
+ '$url', $config['domain'].$post->getUrl(),
+ '$description' => $pt->getDescriptionPreview(155)
]);
+ if (($img = $pt->getFirstImage()) !== null)
+ add_meta(['$image' => $img->getDirectUrl()]);
set_skin_opts(['articles_lang' => $lang->value]);
diff --git a/htdocs/img/4in1-preview.jpg b/htdocs/img/4in1-preview.jpg
new file mode 100644
index 0000000..e28d6ec
Binary files /dev/null and b/htdocs/img/4in1-preview.jpg differ
diff --git a/skin/base.phps b/skin/base.phps
index bad2f9f..25d83f5 100644
--- a/skin/base.phps
+++ b/skin/base.phps
@@ -29,7 +29,7 @@ return <<
{$title}
- {$ctx->renderMeta($meta)}
+ {$ctx->meta($meta)}
{$ctx->renderStatic($static, $theme)}
if_true($body_class, ' class="'.implode(' ', $body_class).'"')}>
@@ -100,7 +100,7 @@ ThemeSwitcher.init();
HTML;
}
-function renderMeta($ctx, $meta) {
+function meta($ctx, $meta) {
if (empty($meta))
return '';
return implode('', array_map(function(array $item): string {
@@ -108,6 +108,7 @@ function renderMeta($ctx, $meta) {
foreach ($item as $k => $v)
$s .= ' '.htmlescape($k).'="'.htmlescape($v).'"';
$s .= '>';
+ $s .= "\n";
return $s;
}, $meta));
}
diff --git a/strings/main.yaml b/strings/main.yaml
index f191a9f..d2ac36e 100644
--- a/strings/main.yaml
+++ b/strings/main.yaml
@@ -20,6 +20,10 @@ toc: 'Table of Contents'
lang_en: "English"
lang_ru: "Русский"
+# meta
+meta_index_title: "4in1. Mask of Shakespeare, mysteries of Bacon, book by Cartier, secrets of the NSA"
+meta_index_description: "This is the official web site of the book \"4in1\". The book has emerged as an outcome of many years of journalistic investigations, published as a series of articles over the last few years on the kiwi arXiv website."
+
# blog
blog_new_post: "New post"
blog_view_post: "View post"