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<?php |
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|
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namespace wpforo\classes; |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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/** |
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* AIMarkdown - Unified Markdown to HTML converter for AI features |
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* |
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* Provides consistent markdown conversion across all AI features with |
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* mode-based behavior for different security contexts. |
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* |
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* Modes: |
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* - MODE_FRONTEND: Strict escaping with esc_html(), placeholder protection (chatbot, search) |
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* - MODE_ADMIN: Permissive with wp_kses_post(), includes strikethrough (log viewer) |
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* - MODE_SIMPLE: Basic conversion without escaping (for pre-escaped content) |
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* |
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* @since 3.0.0 |
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*/ |
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class AIMarkdown { |
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|
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/** |
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* Mode constants |
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*/ |
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const MODE_FRONTEND = 'frontend'; |
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const MODE_ADMIN = 'admin'; |
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const MODE_SIMPLE = 'simple'; |
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|
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/** |
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* Convert markdown to HTML |
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* |
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* @param string $text Markdown text to convert |
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* @param string $mode Conversion mode (MODE_FRONTEND, MODE_ADMIN, MODE_SIMPLE) |
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* @param array $options Optional settings: |
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* - 'convert_urls': bool - Convert plain URLs to links (default: true for frontend) |
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* - 'header_offset': int - Offset for header levels (default: 2 for frontend, 0 for admin) |
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* - 'use_wpautop': bool - Use wpautop for paragraphs (default: true for admin) |
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* |
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* @return string HTML output |
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*/ |
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public static function to_html( $text, $mode = self::MODE_FRONTEND, $options = [] ) { |
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if ( empty( $text ) ) { |
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return ''; |
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} |
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|
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// Normalize line endings |
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$text = str_replace( [ "\r\n", "\r" ], "\n", $text ); |
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|
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// Set defaults based on mode |
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$defaults = self::get_mode_defaults( $mode ); |
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$options = wp_parse_args( $options, $defaults ); |
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|
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// Route to appropriate converter |
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if ( $mode === self::MODE_FRONTEND ) { |
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return self::convert_frontend( $text, $options ); |
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} |
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|
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return self::convert_admin( $text, $options ); |
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} |
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|
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/** |
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* Get default options for each mode |
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* |
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* @param string $mode Conversion mode |
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* |
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* @return array Default options |
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*/ |
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private static function get_mode_defaults( $mode ) { |
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switch ( $mode ) { |
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case self::MODE_FRONTEND: |
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return [ |
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'convert_urls' => true, |
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'header_offset' => 2, // # → h3, ## → h4 |
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'use_wpautop' => false, |
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'strikethrough' => false, |
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]; |
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|
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case self::MODE_ADMIN: |
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case self::MODE_SIMPLE: |
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default: |
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return [ |
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'convert_urls' => false, |
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'header_offset' => 0, // # → h1, ## → h2 |
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'use_wpautop' => true, |
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'strikethrough' => true, |
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]; |
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} |
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} |
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|
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/** |
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* Frontend conversion with placeholder protection and strict escaping |
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* |
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* Used for: Chatbot responses, search results, public-facing content |
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* Security: Uses esc_html() during processing, placeholder protection |
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* |
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* @param string $text Markdown text |
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* @param array $options Conversion options |
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* |
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* @return string HTML output |
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*/ |
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private static function convert_frontend( $text, $options ) { |
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// Step 1: Extract and protect elements with placeholders |
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$placeholders = []; |
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$index = 0; |
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|
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// Extract fenced code blocks ```language\ncode\n``` |
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$text = preg_replace_callback( |
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'/```(\w*)\n([\s\S]*?)```/', |
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function ( $matches ) use ( &$placeholders, &$index ) { |
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$placeholder = "%%WPF_CODEBLOCK_{$index}%%"; |
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$language = ! empty( $matches[1] ) ? ' class="language-' . esc_attr( $matches[1] ) . '"' : ''; |
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$code = esc_html( trim( $matches[2] ) ); |
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$placeholders[ $placeholder ] = '<pre><code' . $language . '>' . $code . '</code></pre>'; |
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$index++; |
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return $placeholder; |
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}, |
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$text |
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); |
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|
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// Extract inline code `code` |
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$text = preg_replace_callback( |
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'/`([^`\n]+)`/', |
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function ( $matches ) use ( &$placeholders, &$index ) { |
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$placeholder = "%%WPF_INLINECODE_{$index}%%"; |
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$placeholders[ $placeholder ] = '<code>' . esc_html( $matches[1] ) . '</code>'; |
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$index++; |
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return $placeholder; |
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}, |
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$text |
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); |
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|
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// Extract markdown links [text](url) |
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$text = preg_replace_callback( |
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'/\[([^\]]+)\]\(([^)]+)\)/', |
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function ( $matches ) use ( &$placeholders, &$index ) { |
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$placeholder = "%%WPF_LINK_{$index}%%"; |
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$placeholders[ $placeholder ] = '<a href="' . esc_url( $matches[2] ) . '" target="_blank" rel="noopener noreferrer">' . esc_html( $matches[1] ) . '</a>'; |
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$index++; |
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return $placeholder; |
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}, |
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$text |
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); |
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|
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// Extract plain URLs if enabled |
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if ( ! empty( $options['convert_urls'] ) ) { |
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$text = preg_replace_callback( |
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'/(?<!["\'])(https?:\/\/[^\s<>\[\]"\']+)/', |
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function ( $matches ) use ( &$placeholders, &$index ) { |
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$url = rtrim( $matches[1], '.,;:!?' ); |
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$placeholder = "%%WPF_PLAINURL_{$index}%%"; |
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$placeholders[ $placeholder ] = '<a href="' . esc_url( $url ) . '" target="_blank" rel="noopener noreferrer">' . esc_html( $url ) . '</a><br class="wpf-ai-br">'; |
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$index++; |
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return $placeholder; |
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}, |
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$text |
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); |
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} |
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|
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// Extract bold **text** or __text__ |
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$text = preg_replace_callback( |
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'/(\*\*|__)(.+?)\1/', |
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function ( $matches ) use ( &$placeholders, &$index ) { |
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$placeholder = "%%WPF_BOLD_{$index}%%"; |
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$placeholders[ $placeholder ] = '<strong>' . esc_html( $matches[2] ) . '</strong>'; |
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$index++; |
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return $placeholder; |
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}, |
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$text |
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); |
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|
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// Extract italic *text* or _text_ (but not inside words, not matching HR like ***) |
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// Uses [^\*_] to prevent matching horizontal rules or other markers |
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$text = preg_replace_callback( |
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'/(?<![a-zA-Z0-9\*_])(\*|_)([^\*_\n]+?)\1(?![a-zA-Z0-9\*_])/', |
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function ( $matches ) use ( &$placeholders, &$index ) { |
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$placeholder = "%%WPF_ITALIC_{$index}%%"; |
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$placeholders[ $placeholder ] = '<em>' . esc_html( $matches[2] ) . '</em>'; |
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$index++; |
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return $placeholder; |
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}, |
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$text |
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); |
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|
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// Step 2: Process block-level elements |
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$text = self::process_blocks_frontend( $text, $options, $placeholders ); |
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|
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// Step 3: Restore all placeholders (in reverse order to handle nested placeholders) |
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foreach ( array_reverse( $placeholders, true ) as $placeholder => $html ) { |
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$text = str_replace( $placeholder, $html, $text ); |
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} |
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|
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// Step 4: Convert remaining newlines to <br> |
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$text = preg_replace( '/(?<!>)\n(?!<)/', '<br class="wpf-ai-br">' . "\n", $text ); |
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|
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// Clean up extra line breaks |
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$text = preg_replace( '/(<br[^>]*>\s*)+/', '<br class="wpf-ai-br">', $text ); |
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$text = preg_replace( '/<br[^>]*>\s*(<\/?(ul|ol|li|pre|blockquote|h[1-6]|hr))/', '$1', $text ); |
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$text = preg_replace( '/(<\/?(ul|ol|li|pre|blockquote|h[1-6]|hr)[^>]*>)\s*<br[^>]*>/', '$1', $text ); |
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|
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return trim( $text ); |
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} |
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|
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/** |
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* Process block-level elements for frontend mode |
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* |
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* @param string $text Text to process |
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* @param array $options Conversion options |
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* @param array $placeholders Reference to placeholders array |
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* |
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* @return string Processed text |
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*/ |
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private static function process_blocks_frontend( $text, $options, &$placeholders ) { |
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$lines = explode( "\n", $text ); |
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$result = []; |
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$in_list = false; |
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$list_type = ''; |
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$in_blockquote = false; |
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$header_offset = $options['header_offset'] ?? 2; |
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|
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foreach ( $lines as $line ) { |
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$trimmed = trim( $line ); |
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|
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// Skip if line is a placeholder (code block) |
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if ( preg_match( '/^%%WPF_CODEBLOCK_\d+%%$/', $trimmed ) ) { |
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if ( $in_list ) { |
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$result[] = $list_type === 'ul' ? '</ul>' : '</ol>'; |
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$in_list = false; |
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} |
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if ( $in_blockquote ) { |
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$result[] = '</blockquote>'; |
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$in_blockquote = false; |
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} |
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$result[] = $trimmed; |
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continue; |
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} |
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|
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// Horizontal rule |
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if ( preg_match( '/^(-{3,}|\*{3,}|_{3,})$/', $trimmed ) ) { |
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if ( $in_list ) { |
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$result[] = $list_type === 'ul' ? '</ul>' : '</ol>'; |
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$in_list = false; |
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} |
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if ( $in_blockquote ) { |
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$result[] = '</blockquote>'; |
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$in_blockquote = false; |
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} |
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$result[] = '<hr>'; |
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continue; |
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} |
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|
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// Headers (# ## ### up to ######) |
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if ( preg_match( '/^(#{1,6})\s+(.+)$/', $trimmed, $matches ) ) { |
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if ( $in_list ) { |
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$result[] = $list_type === 'ul' ? '</ul>' : '</ol>'; |
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$in_list = false; |
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} |
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if ( $in_blockquote ) { |
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$result[] = '</blockquote>'; |
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$in_blockquote = false; |
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} |
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$level = min( strlen( $matches[1] ) + $header_offset, 6 ); |
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$result[] = '<h' . $level . '>' . esc_html( $matches[2] ) . '</h' . $level . '>'; |
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continue; |
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} |
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|
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// Blockquote |
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if ( preg_match( '/^>\s*(.*)$/', $trimmed, $matches ) ) { |
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if ( $in_list ) { |
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$result[] = $list_type === 'ul' ? '</ul>' : '</ol>'; |
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$in_list = false; |
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} |
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if ( ! $in_blockquote ) { |
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$result[] = '<blockquote>'; |
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$in_blockquote = true; |
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} |
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$result[] = esc_html( $matches[1] ); |
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continue; |
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} elseif ( $in_blockquote && ! empty( $trimmed ) ) { |
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$result[] = '</blockquote>'; |
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$in_blockquote = false; |
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} |
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|
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// Unordered list (- or *) |
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if ( preg_match( '/^[-*]\s+(.+)$/', $trimmed, $matches ) ) { |
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if ( $in_blockquote ) { |
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$result[] = '</blockquote>'; |
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$in_blockquote = false; |
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} |
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if ( ! $in_list || $list_type !== 'ul' ) { |
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if ( $in_list ) { |
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$result[] = $list_type === 'ul' ? '</ul>' : '</ol>'; |
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} |
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$result[] = '<ul>'; |
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$in_list = true; |
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$list_type = 'ul'; |
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} |
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$result[] = '<li>' . esc_html( $matches[1] ) . '</li>'; |
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continue; |
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} |
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|
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// Ordered list (1. or 1) format) |
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if ( preg_match( '/^\d+[.)]\s+(.+)$/', $trimmed, $matches ) ) { |
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if ( $in_blockquote ) { |
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$result[] = '</blockquote>'; |
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$in_blockquote = false; |
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} |
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if ( ! $in_list || $list_type !== 'ol' ) { |
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if ( $in_list ) { |
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$result[] = $list_type === 'ul' ? '</ul>' : '</ol>'; |
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} |
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$result[] = '<ol>'; |
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$in_list = true; |
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$list_type = 'ol'; |
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} |
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$result[] = '<li>' . esc_html( $matches[1] ) . '</li>'; |
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continue; |
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} |
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|
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// End list if we hit a non-list line |
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if ( $in_list && ! empty( $trimmed ) ) { |
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$result[] = $list_type === 'ul' ? '</ul>' : '</ol>'; |
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$in_list = false; |
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} |
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|
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// Regular line - escape and add |
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if ( ! empty( $trimmed ) ) { |
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$result[] = esc_html( $line ); |
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} elseif ( ! $in_list && ! $in_blockquote ) { |
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$result[] = ''; |
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} |
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} |
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|
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// Close any open tags |
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if ( $in_list ) { |
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$result[] = $list_type === 'ul' ? '</ul>' : '</ol>'; |
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} |
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if ( $in_blockquote ) { |
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$result[] = '</blockquote>'; |
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} |
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|
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return implode( "\n", $result ); |
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} |
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|
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/** |
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* Admin conversion with simple regex and wp_kses_post |
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* |
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* Used for: Log viewer, admin panels, trusted content |
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* Security: Uses wp_kses_post() at the end for sanitization |
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* |
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* @param string $text Markdown text |
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* @param array $options Conversion options |
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* |
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* @return string HTML output |
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*/ |
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private static function convert_admin( $text, $options ) { |
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$header_offset = $options['header_offset'] ?? 0; |
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|
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// Code blocks FIRST: ```code``` (must be before inline code) |
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$text = preg_replace( '/```(\w*)\n?([\s\S]*?)```/', '<pre><code>$2</code></pre>', $text ); |
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|
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// Inline code: `code` (after code blocks) |
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$text = preg_replace( '/`([^`]+)`/', '<code>$1</code>', $text ); |
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|
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// Headers (h1-h6) with optional offset |
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if ( $header_offset === 0 ) { |
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$text = preg_replace( '/^######\s+(.+)$/m', '<h6>$1</h6>', $text ); |
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$text = preg_replace( '/^#####\s+(.+)$/m', '<h5>$1</h5>', $text ); |
| 370 |
$text = preg_replace( '/^####\s+(.+)$/m', '<h4>$1</h4>', $text ); |
| 371 |
$text = preg_replace( '/^###\s+(.+)$/m', '<h3>$1</h3>', $text ); |
| 372 |
$text = preg_replace( '/^##\s+(.+)$/m', '<h2>$1</h2>', $text ); |
| 373 |
$text = preg_replace( '/^#\s+(.+)$/m', '<h1>$1</h1>', $text ); |
| 374 |
} else { |
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// Apply header offset (e.g., # → h3 when offset is 2) |
| 376 |
for ( $i = 6; $i >= 1; $i-- ) { |
| 377 |
$hashes = str_repeat( '#', $i ); |
| 378 |
$new_level = min( $i + $header_offset, 6 ); |
| 379 |
$text = preg_replace( '/^' . $hashes . '\s+(.+)$/m', '<h' . $new_level . '>$1</h' . $new_level . '>', $text ); |
| 380 |
} |
| 381 |
} |
| 382 |
|
| 383 |
// Bold: **text** or __text__ |
| 384 |
$text = preg_replace( '/\*\*(.+?)\*\*/', '<strong>$1</strong>', $text ); |
| 385 |
$text = preg_replace( '/__(.+?)__/', '<strong>$1</strong>', $text ); |
| 386 |
|
| 387 |
// Italic: *text* or _text_ (but not inside words) |
| 388 |
$text = preg_replace( '/(?<!\w)\*([^\*]+)\*(?!\w)/', '<em>$1</em>', $text ); |
| 389 |
$text = preg_replace( '/(?<!\w)_([^_]+)_(?!\w)/', '<em>$1</em>', $text ); |
| 390 |
|
| 391 |
// Strikethrough: ~~text~~ (admin mode only) |
| 392 |
if ( ! empty( $options['strikethrough'] ) ) { |
| 393 |
$text = preg_replace( '/~~(.+?)~~/', '<del>$1</del>', $text ); |
| 394 |
} |
| 395 |
|
| 396 |
// Links: [text](url) |
| 397 |
$text = preg_replace( '/\[([^\]]+)\]\(([^\)]+)\)/', '<a href="$2" target="_blank">$1</a>', $text ); |
| 398 |
|
| 399 |
// Ordered lists: 1. or 1) item (process BEFORE unordered to wrap correctly) |
| 400 |
$text = preg_replace( '/^\d+[.)]\s+(.+)$/m', '<li>$1</li>', $text ); |
| 401 |
$text = preg_replace( '/(<li>.*<\/li>\n?)+/', '<ol>$0</ol>', $text ); |
| 402 |
|
| 403 |
// Unordered lists: - item or * item |
| 404 |
$text = preg_replace( '/^[\-\*]\s+(.+)$/m', '<li>$1</li>', $text ); |
| 405 |
$text = preg_replace( '/(<li>.*<\/li>\n?)+/', '<ul>$0</ul>', $text ); |
| 406 |
|
| 407 |
// Blockquotes: > text |
| 408 |
$text = preg_replace( '/^>\s+(.+)$/m', '<blockquote>$1</blockquote>', $text ); |
| 409 |
|
| 410 |
// Horizontal rules: --- or *** |
| 411 |
$text = preg_replace( '/^[\-\*]{3,}$/m', '<hr>', $text ); |
| 412 |
|
| 413 |
// Use wpautop for paragraph handling if enabled |
| 414 |
if ( ! empty( $options['use_wpautop'] ) ) { |
| 415 |
$text = wpautop( $text ); |
| 416 |
} |
| 417 |
|
| 418 |
// Sanitize with wp_kses_post for admin context |
| 419 |
return wp_kses_post( $text ); |
| 420 |
} |
| 421 |
|
| 422 |
/** |
| 423 |
* Convert citation markers to clickable links |
| 424 |
* |
| 425 |
* Handles various citation formats from AI responses: |
| 426 |
* - [[#123]] - wpForo post reference |
| 427 |
* - [[#123:Title]] - wpForo with title (title ignored) |
| 428 |
* - [[#wp_123]] - WordPress post reference |
| 429 |
* - [[#wp_123:Title]] - WordPress with title |
| 430 |
* - [[123]] - Missing hash (common LLM mistake) |
| 431 |
* - [#123] - Missing outer brackets |
| 432 |
* |
| 433 |
* @param string $text Text containing citation markers |
| 434 |
* @param array $options Optional settings: |
| 435 |
* - 'format': 'superscript' (default) or 'inline' |
| 436 |
* - 'class': CSS class for links (default: 'wpf-ai-chat-reference') |
| 437 |
* |
| 438 |
* @return string Text with citations converted to HTML links |
| 439 |
*/ |
| 440 |
public static function convert_citations( $text, $options = [] ) { |
| 441 |
if ( empty( $text ) ) { |
| 442 |
return ''; |
| 443 |
} |
| 444 |
|
| 445 |
$defaults = [ |
| 446 |
'format' => 'superscript', |
| 447 |
'class' => 'wpf-ai-chat-reference', |
| 448 |
]; |
| 449 |
$options = wp_parse_args( $options, $defaults ); |
| 450 |
|
| 451 |
// Step 1: Normalize malformed citations |
| 452 |
// Convert [[123]] to [[#123]] |
| 453 |
$text = preg_replace( '/\[\[(\d+)\]\]/', '[[#$1]]', $text ); |
| 454 |
// Convert [#123] to [[#123]] |
| 455 |
$text = preg_replace( '/(?<!\[)\[#(\d+)\](?!\])/', '[[#$1]]', $text ); |
| 456 |
|
| 457 |
// Step 2: Split grouped citations like [[#1360],[#1506]] |
| 458 |
$text = preg_replace( '/\[\[#(\d+)\],\s*\[#(\d+)\]\]/', '[[#$1]][[#$2]]', $text ); |
| 459 |
$text = preg_replace( '/\[\[#(\d+)\],\s*\[#(\d+)\],\s*\[#(\d+)\]\]/', '[[#$1]][[#$2]][[#$3]]', $text ); |
| 460 |
|
| 461 |
// Step 3: Convert wpForo citations [[#postid]] or [[#postid:title]] |
| 462 |
$text = preg_replace_callback( |
| 463 |
'/\[\[#(\d+)(?::[^\]]+)?\]\]/', |
| 464 |
function ( $matches ) use ( $options ) { |
| 465 |
$postid = intval( $matches[1] ); |
| 466 |
$url = \WPF()->post->get_url( $postid ); |
| 467 |
|
| 468 |
if ( ! $url ) { |
| 469 |
return $matches[0]; // Return original if URL not found |
| 470 |
} |
| 471 |
|
| 472 |
if ( $options['format'] === 'superscript' ) { |
| 473 |
return '<sup class="' . esc_attr( $options['class'] ) . '"><a href="' . esc_url( $url ) . '" target="_blank" rel="noopener">[' . $postid . ']</a></sup>'; |
| 474 |
} |
| 475 |
|
| 476 |
return '<a href="' . esc_url( $url ) . '" target="_blank" rel="noopener" class="' . esc_attr( $options['class'] ) . '">#' . $postid . '</a>'; |
| 477 |
}, |
| 478 |
$text |
| 479 |
); |
| 480 |
|
| 481 |
// Step 4: Convert WordPress citations [[#wp_postid]] or [[#wp_postid:title]] |
| 482 |
$text = preg_replace_callback( |
| 483 |
'/\[\[#wp_(\d+)(?::([^\]]+))?\]\]/', |
| 484 |
function ( $matches ) use ( $options ) { |
| 485 |
$postid = intval( $matches[1] ); |
| 486 |
$title = ! empty( $matches[2] ) ? $matches[2] : ''; |
| 487 |
$url = get_permalink( $postid ); |
| 488 |
|
| 489 |
if ( ! $url ) { |
| 490 |
return $matches[0]; // Return original if URL not found |
| 491 |
} |
| 492 |
|
| 493 |
// Get title from post if not provided |
| 494 |
if ( empty( $title ) ) { |
| 495 |
$post = get_post( $postid ); |
| 496 |
$title = $post ? $post->post_title : "Post #{$postid}"; |
| 497 |
} |
| 498 |
|
| 499 |
if ( $options['format'] === 'superscript' ) { |
| 500 |
return '<sup class="' . esc_attr( $options['class'] ) . '"><a href="' . esc_url( $url ) . '" target="_blank" rel="noopener">[<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" style="vertical-align:-2px;margin-right:2px"><path d="M4 4h16v16H4z"/><path d="M8 8h8"/><path d="M8 12h8"/><path d="M8 16h5"/></svg>' . $postid . ']</a></sup>'; |
| 501 |
} |
| 502 |
|
| 503 |
return '<a href="' . esc_url( $url ) . '" target="_blank" rel="noopener" class="' . esc_attr( $options['class'] ) . '">' . esc_html( $title ) . '</a>'; |
| 504 |
}, |
| 505 |
$text |
| 506 |
); |
| 507 |
|
| 508 |
// Step 5: Fallback for WordPress citations missing # - [[wp_postid]] or [[wp_postid:title]] |
| 509 |
// AI sometimes forgets the hash, so handle this common mistake |
| 510 |
$text = preg_replace_callback( |
| 511 |
'/\[\[wp_(\d+)(?::([^\]]+))?\]\]/', |
| 512 |
function ( $matches ) use ( $options ) { |
| 513 |
$postid = intval( $matches[1] ); |
| 514 |
$title = ! empty( $matches[2] ) ? $matches[2] : ''; |
| 515 |
$url = get_permalink( $postid ); |
| 516 |
|
| 517 |
if ( ! $url ) { |
| 518 |
return $matches[0]; // Return original if URL not found |
| 519 |
} |
| 520 |
|
| 521 |
// Get title from post if not provided |
| 522 |
if ( empty( $title ) ) { |
| 523 |
$post = get_post( $postid ); |
| 524 |
$title = $post ? $post->post_title : "Post #{$postid}"; |
| 525 |
} |
| 526 |
|
| 527 |
if ( $options['format'] === 'superscript' ) { |
| 528 |
return '<sup class="' . esc_attr( $options['class'] ) . '"><a href="' . esc_url( $url ) . '" target="_blank" rel="noopener">[<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" style="vertical-align:-2px;margin-right:2px"><path d="M4 4h16v16H4z"/><path d="M8 8h8"/><path d="M8 12h8"/><path d="M8 16h5"/></svg>' . $postid . ']</a></sup>'; |
| 529 |
} |
| 530 |
|
| 531 |
return '<a href="' . esc_url( $url ) . '" target="_blank" rel="noopener" class="' . esc_attr( $options['class'] ) . '">' . esc_html( $title ) . '</a>'; |
| 532 |
}, |
| 533 |
$text |
| 534 |
); |
| 535 |
|
| 536 |
return $text; |
| 537 |
} |
| 538 |
|
| 539 |
/** |
| 540 |
* Replace [NO_FORUM_CONTENT] placeholder with custom message |
| 541 |
* |
| 542 |
* @param string $text Text containing placeholder |
| 543 |
* @param string $custom_message Custom message to use (or empty for default) |
| 544 |
* @param array $replacements Key-value pairs for placeholder replacement in message |
| 545 |
* |
| 546 |
* @return string Text with placeholder replaced |
| 547 |
*/ |
| 548 |
public static function replace_no_content_placeholder( $text, $custom_message = '', $replacements = [] ) { |
| 549 |
if ( strpos( $text, '[NO_FORUM_CONTENT]' ) === false ) { |
| 550 |
return $text; |
| 551 |
} |
| 552 |
|
| 553 |
// Default message |
| 554 |
if ( empty( $custom_message ) ) { |
| 555 |
$custom_message = __( "I couldn't find specific forum content related to your question. Would you like to start a new topic to discuss this?", 'wpforo' ); |
| 556 |
} |
| 557 |
|
| 558 |
// Apply replacements (e.g., {add_topic_url}) |
| 559 |
foreach ( $replacements as $key => $value ) { |
| 560 |
$custom_message = str_replace( '{' . $key . '}', $value, $custom_message ); |
| 561 |
} |
| 562 |
|
| 563 |
// Sanitize: allow only safe HTML tags |
| 564 |
$allowed_tags = '<a><br><p><img><strong><em><ul><ol><li>'; |
| 565 |
$custom_message = strip_tags( $custom_message, $allowed_tags ); |
| 566 |
|
| 567 |
return str_replace( '[NO_FORUM_CONTENT]', $custom_message, $text ); |
| 568 |
} |
| 569 |
|
| 570 |
/** |
| 571 |
* Full AI response formatting pipeline |
| 572 |
* |
| 573 |
* Combines all formatting steps in the correct order: |
| 574 |
* 1. Replace [NO_FORUM_CONTENT] placeholder |
| 575 |
* 2. Convert markdown to HTML |
| 576 |
* 3. Convert citation markers to links |
| 577 |
* |
| 578 |
* @param string $text Raw AI response text |
| 579 |
* @param string $mode Conversion mode (default: MODE_FRONTEND) |
| 580 |
* @param array $options Options for to_html() |
| 581 |
* @param array $citation_options Options for convert_citations() |
| 582 |
* @param string $no_content_msg Custom message for [NO_FORUM_CONTENT] |
| 583 |
* @param array $no_content_vars Replacements for no-content message |
| 584 |
* |
| 585 |
* @return string Fully formatted HTML |
| 586 |
*/ |
| 587 |
public static function format_ai_response( $text, $mode = self::MODE_FRONTEND, $options = [], $citation_options = [], $no_content_msg = '', $no_content_vars = [] ) { |
| 588 |
if ( empty( $text ) ) { |
| 589 |
return ''; |
| 590 |
} |
| 591 |
|
| 592 |
// Step 1: Replace [NO_FORUM_CONTENT] placeholder |
| 593 |
$text = self::replace_no_content_placeholder( $text, $no_content_msg, $no_content_vars ); |
| 594 |
|
| 595 |
// Step 2: Convert markdown to HTML |
| 596 |
$text = self::to_html( $text, $mode, $options ); |
| 597 |
|
| 598 |
// Step 3: Convert citation markers to links |
| 599 |
$text = self::convert_citations( $text, $citation_options ); |
| 600 |
|
| 601 |
return $text; |
| 602 |
} |
| 603 |
} |
| 604 |
|
