Seo

**Site relevance:** 2IA.org

**Memory type:** theme source memory

**Source path:** 2IA.org/wp-content/themes/twoia-intelligence/inc/seo.php

**Size:** 5.1 KB

Summary

Lightweight SEO metadata.

Source Preview

This source file is short enough to preview directly on its source-memory page.

<?php
/**
 * Lightweight SEO metadata.
 *
 * @package TwoIA
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Detect common SEO plugins to avoid duplicate meta tags.
 *
 * @return bool
 */
function twoia_seo_plugin_active() {
	return class_exists( 'WPSEO_Frontend' ) || defined( 'RANK_MATH_VERSION' ) || defined( 'AIOSEO_VERSION' );
}

/**
 * Build a plain-text meta description.
 *
 * @return string
 */
function twoia_get_meta_description() {
	if ( is_front_page() || is_home() ) {
		return esc_html__( '2IA publishes independent research on surveillance, identity systems, public records, intelligence power, anonymity, civil liberties, and freedom.', 'two-identities-anonymous' );
	}

	if ( function_exists( 'twoia_get_requested_virtual_page' ) ) {
		$page = twoia_get_requested_virtual_page();
		if ( $page && twoia_should_render_virtual_page( $page['slug'] ) ) {
			if ( empty( $page['route_type'] ) && ! empty( $page['meta_description'] ) ) {
				return wp_strip_all_tags( $page['meta_description'] );
			}

			if ( function_exists( 'twoia_get_virtual_share_payload' ) ) {
				$section = ! empty( $page['brief_section'] ) ? $page['brief_section'] : null;
				$dossier = array();

				if ( $section && function_exists( 'twoia_get_virtual_dossier_payload' ) ) {
					$dossier = twoia_get_virtual_dossier_payload( $page, $section );
				}

				$payload = twoia_get_virtual_share_payload( $page, $section, $dossier );
				return wp_trim_words( wp_strip_all_tags( $payload['line'] . ' ' . $payload['demand'] ), 36, '...' );
			}

			return wp_trim_words( wp_strip_all_tags( $page['summary'] ), 32, '...' );
		}
	}

	if ( is_singular() ) {
		$post = get_post();
		if ( $post instanceof WP_Post ) {
			$source = has_excerpt( $post ) ? $post->post_excerpt : $post->post_content;
			return wp_trim_words( wp_strip_all_tags( strip_shortcodes( $source ) ), 32, '…' );
		}
	}

	if ( is_front_page() || is_home() ) {
		return wp_trim_words( wp_strip_all_tags( twoia_theme_mod( 'twoia_hero_body', '' ) ), 32, '…' );
	}

	if ( is_archive() ) {
		$description = get_the_archive_description();
		if ( $description ) {
			return wp_trim_words( wp_strip_all_tags( $description ), 32, '…' );
		}
	}

	if ( is_search() ) {
		return sprintf(
			/* translators: %s: Search query. */
			esc_html__( 'Search results for %s in the 2IA public-intelligence research archive.', 'two-identities-anonymous' ),
			get_search_query()
		);
	}

	return esc_html__( '2IA studies modern communications surveillance, metadata, identity, AI analysis, civil liberties, and lawful public understanding.', 'two-identities-anonymous' );
}

/**
 * Return the canonical URL for the current view.
 *
 * @return string
 */
function twoia_get_canonical_url() {
	if ( function_exists( 'twoia_get_requested_virtual_page' ) ) {
		$page = twoia_get_requested_virtual_page();
		if ( $page && twoia_should_render_virtual_page( $page['slug'] ) ) {
			if ( 'research-archive' === $page['slug'] && empty( $page['route_type'] ) ) {
				return home_url( '/research/' );
			}

			return home_url( '/' . $page['slug'] . '/' );
		}
	}

	if ( is_singular() ) {
		return get_permalink();
	}

	if ( is_front_page() || is_home() ) {
		return home_url( '/' );
	}

	return get_pagenum_link( max( 1, get_query_var( 'paged' ) ) );
}

/**
 * Return an Open Graph image.
 *
 * @return string
 */
function twoia_get_og_image() {
	if ( is_singular() && has_post_thumbnail() ) {
		$image = wp_get_attachment_image_src( get_post_thumbnail_id(), 'briefing-hero' );
		if ( $image && ! empty( $image[0] ) ) {
			return $image[0];
		}
	}

	return twoia_default_briefing_image_url();
}

/**
 * Output basic meta, Open Graph, and Twitter card tags.
 */
function twoia_output_meta_tags() {
	if ( twoia_seo_plugin_active() ) {
		return;
	}

	$description = twoia_get_meta_description();
	$canonical   = twoia_get_canonical_url();
	$title       = wp_get_document_title();
	$article_post_types = function_exists( 'twoia_article_post_types' ) ? twoia_article_post_types() : array( 'post' );
	$type               = is_singular( $article_post_types ) ? 'article' : 'website';
	$image       = twoia_get_og_image();
	?>
	<meta name="description" content="<?php echo esc_attr( $description ); ?>">
	<link rel="canonical" href="<?php echo esc_url( $canonical ); ?>">
	<meta property="og:site_name" content="<?php echo esc_attr( function_exists( 'twoia_public_site_name' ) ? twoia_public_site_name() : get_bloginfo( 'name' ) ); ?>">
	<meta property="og:title" content="<?php echo esc_attr( $title ); ?>">
	<meta property="og:description" content="<?php echo esc_attr( $description ); ?>">
	<meta property="og:type" content="<?php echo esc_attr( $type ); ?>">
	<meta property="og:url" content="<?php echo esc_url( $canonical ); ?>">
	<meta property="og:image" content="<?php echo esc_url( $image ); ?>">
	<meta name="twitter:card" content="summary_large_image">
	<meta name="twitter:title" content="<?php echo esc_attr( $title ); ?>">
	<meta name="twitter:description" content="<?php echo esc_attr( $description ); ?>">
	<meta name="twitter:image" content="<?php echo esc_url( $image ); ?>">
	<?php
}
add_action( 'wp_head', 'twoia_output_meta_tags', 5 );