用户功能设置收口与废弃后台链路清理

inc/helpers/aksrt-avatar.php

@@ -37,18 +37,98 @@ if (!function_exists('aksrt_resolve_avatar_user_id')) {
 	}
 }
 
+if (!function_exists('aksrt_resolve_avatar_email')) {
+	/**
+	 * Resolve an email address from an avatar subject.
+	 *
+	 * @param mixed $subject User ID, WP_User, comment, post, or email.
+	 */
+	function aksrt_resolve_avatar_email($subject): string {
+		if ($subject instanceof WP_User) {
+			return sanitize_email((string) $subject->user_email);
+		}
+		if ($subject instanceof WP_Comment && is_email((string) $subject->comment_author_email)) {
+			return sanitize_email((string) $subject->comment_author_email);
+		}
+		if (is_object($subject) && isset($subject->comment_author_email) && is_email((string) $subject->comment_author_email)) {
+			return sanitize_email((string) $subject->comment_author_email);
+		}
+		if (is_string($subject) && is_email($subject)) {
+			return sanitize_email($subject);
+		}
+
+		$user_id = aksrt_resolve_avatar_user_id($subject);
+		$user = $user_id > 0 ? get_userdata($user_id) : false;
+		return $user instanceof WP_User ? sanitize_email((string) $user->user_email) : '';
+	}
+}
+
+if (!function_exists('aksrt_get_user_feature_settings')) {
+	/**
+	 * Return the canonical user media and signature settings.
+	 *
+	 * @return array{avatar_upload_s:bool,avatar_external:string,avatar_default_img:string,user_cover_upload_s:bool,user_cover_img:string,user_desc_std:string}
+	 */
+	function aksrt_get_user_feature_settings(): array {
+		if (class_exists('\AKSRT\Settings\Settings')) {
+			return \AKSRT\Settings\Settings::get_user_feature_settings();
+		}
+
+		return [
+			'avatar_upload_s'     => true,
+			'avatar_external'     => '',
+			'avatar_default_img'  => get_theme_file_uri('assets/img/avatar-default.png'),
+			'user_cover_upload_s' => true,
+			'user_cover_img'      => get_theme_file_uri('assets/img/user_t.jpg'),
+			'user_desc_std'       => '这家伙很懒，什么都没有写...',
+		];
+	}
+}
+
 if (!function_exists('aksrt_get_default_avatar_url')) {
 	/**
 	 * Return the bundled avatar used when a user has no custom image.
 	 */
 	function aksrt_get_default_avatar_url(): string {
+		$settings = aksrt_get_user_feature_settings();
 		return (string) apply_filters(
 			'aksrt_default_avatar_url',
-			get_theme_file_uri('assets/img/user/default-avatar.svg')
+			(string) $settings['avatar_default_img']
 		);
 	}
 }
 
+if (!function_exists('aksrt_get_external_avatar_url')) {
+	/**
+	 * Return the configured external avatar for a subject.
+	 *
+	 * @param mixed $subject User subject.
+	 */
+	function aksrt_get_external_avatar_url($subject, int $size = 96): string {
+		$settings = aksrt_get_user_feature_settings();
+		$hosts = [
+			'gravatar' => 'https://www.gravatar.com/avatar/',
+			'weavatar' => 'https://weavatar.com/avatar/',
+			'cravatar' => 'https://cn.cravatar.com/avatar/',
+			'geekzu'   => 'https://sdn.geekzu.org/avatar/',
+			'loli'     => 'https://gravatar.loli.net/avatar/',
+			'sep'      => 'https://cdn.sep.cc/avatar/',
+			'v2ex'     => 'https://cdn.v2ex.com/gravatar/',
+		];
+		$host = $hosts[(string) $settings['avatar_external']] ?? '';
+		$email = aksrt_resolve_avatar_email($subject);
+		if ($host === '' || $email === '') {
+			return '';
+		}
+
+		$size = max(1, min(2048, $size));
+		return add_query_arg([
+			's' => $size,
+			'd' => aksrt_get_default_avatar_url(),
+		], $host . hash('sha256', strtolower(trim($email))));
+	}
+}
+
 if (!function_exists('aksrt_get_custom_avatar_url')) {
 	/**
 	 * Return the locally uploaded avatar URL.
@@ -91,6 +171,10 @@ if (!function_exists('aksrt_get_avatar_url')) {
 		if ($custom !== '') {
 			return $custom;
 		}
+		$external = aksrt_get_external_avatar_url($subject, $size);
+		if ($external !== '') {
+			return $external;
+		}
 		return aksrt_get_default_avatar_url();
 	}
 }
@@ -133,9 +217,7 @@ if (!function_exists('aksrt_get_avatar_html')) {
 }
 
 add_filter('get_avatar_data', static function (array $args, $subject): array {
-	$user_id = aksrt_resolve_avatar_user_id($subject);
-	$custom = aksrt_get_custom_avatar_url($user_id, (int) ($args['size'] ?? 96));
-	$args['url'] = $custom !== '' ? $custom : aksrt_get_default_avatar_url();
+	$args['url'] = aksrt_get_avatar_url($subject, ['size' => (int) ($args['size'] ?? 96)]);
 	$args['found_avatar'] = true;
 	return $args;
 }, 20, 2);
@@ -151,7 +233,37 @@ if (!function_exists('aksrt_is_avatar_upload_enabled')) {
 	 * Whether local avatar uploads are enabled by attachment policy.
 	 */
 	function aksrt_is_avatar_upload_enabled(): bool {
-		return function_exists('aksrt_user_can') && aksrt_user_can('upload_avatar', get_current_user_id());
+		$settings = aksrt_get_user_feature_settings();
+		return !empty($settings['avatar_upload_s']);
+	}
+}
+
+if (!function_exists('aksrt_is_user_cover_upload_enabled')) {
+	function aksrt_is_user_cover_upload_enabled(): bool {
+		$settings = aksrt_get_user_feature_settings();
+		return !empty($settings['user_cover_upload_s']);
+	}
+}
+
+if (!function_exists('aksrt_get_user_cover_url')) {
+	function aksrt_get_user_cover_url(int $user_id): string {
+		$custom = $user_id > 0 ? esc_url_raw((string) get_user_meta($user_id, 'aksrt_background_image', true)) : '';
+		if ($custom !== '') {
+			return $custom;
+		}
+		$settings = aksrt_get_user_feature_settings();
+		return (string) $settings['user_cover_img'];
+	}
+}
+
+if (!function_exists('aksrt_get_user_description')) {
+	function aksrt_get_user_description(int $user_id): string {
+		$description = $user_id > 0 ? trim((string) get_user_meta($user_id, 'description', true)) : '';
+		if ($description !== '') {
+			return $description;
+		}
+		$settings = aksrt_get_user_feature_settings();
+		return (string) $settings['user_desc_std'];
 	}
 }