0) { $parameters['AWSAccessKeyId'] = $access_key; } ksort($parameters); // The new authentication requirements need the keys to be sorted foreach ($parameters as $parameter => $value) { // Create our new request // We need to be sure we properly encode the value of our parameter $parameter = str_replace("%7E", "~", rawurlencode($parameter)); $value = str_replace("%7E", "~", rawurlencode($value)); $request_array[] = $parameter . '=' . $value; } // Put our & symbol at the beginning of each of our request variables and put it in a string $new_request = implode('&', $request_array); // Create our signature string $signature_string = "GET\n{$uri_elements['host']}\n{$uri_elements['path']}\n{$new_request}"; // Create our signature using hash_hmac $signature = urlencode(base64_encode(hash_hmac('sha256', $signature_string, $secret_key, true))); // Return our new request return "http://{$uri_elements['host']}{$uri_elements['path']}?{$new_request}&Signature={$signature}"; } function amazonx_construct_request($asin, $access_key, $assoc_tag, $response_group) { $ret = "http://ecs.amazonaws.com/onca/xml?" . "Service=AWSECommerceService" . "&AWSAccessKeyId={$access_key}" . "&Operation=ItemLookup" . "&ItemId={$asin}" . "&ResponseGroup={$response_group}"; if($assoc_tag != "") { $ret .= "&AssociateTag={$assoc_tag}"; } return $ret . "&Version=2010-11-01"; } function amazonx_image_dir() { return plugins_url('/images', __FILE__); } function amazonx_star_html($rating) { if($rating == 0) // code for "no rating" return ""; $filled_style = ""; $filled_color = get_option('amazonx_starcolor'); if($filled_color != "") $filled_style = 'style="color: ' . $filled_color . ';" '; $empty_style = ""; $empty_color = get_option('amazonx_estarcolor'); if($empty_color != "") $empty_style = 'style="color: ' . $empty_color . ';" '; $ret = ''; // keep even if no contents for spacing $ret .= ''; for($i = 0; $i < $rating; $i++) $ret .= '★'; $ret .= ''; for(; $i < 5; $i++) $ret .= '★'; $ret .= ''; return $ret; } function amazonx_below_image_html($asin, $rating) { $below = ''; // default $code = get_option('amazonx_belowimg'); if($code != "") { if((int)$code == 0) $below = '
'; else if((int)$code == 2) $below = amazonx_star_html($rating); } return $below; } function amazonx_cat_recur($category_node, $minrating, $maxrating, $showcat) { $direct_posts = (array)null; // find all posts in this category and remove results that are in subcategories if($category_node > 0) { // don't list any posts in category 0 $query = "cat={$category_node}&numberposts=-1&post_type=any"; $posts = get_posts($query); foreach($posts as $thispost) { $categories = get_the_category($thispost->ID); foreach($categories as $cat) if($cat->cat_ID == $category_node) array_push($direct_posts, $thispost); } } $display_posts = (array)null; // load posts to be displayed in this category foreach($direct_posts as $thispost) { //setup_postdata($thispost); // so we can use the_author_posts_link() $id = $thispost->ID; $asin = get_post_meta($id, 'amazonx_asin', true); $rating = get_post_meta($id, 'amazonx_rating', true); if($asin == "") continue; if((int)$minrating != 0 && (int)$rating < (int)$minrating) continue; if((int)$maxrating != 0 && (int)$rating > (int)$maxrating) continue; if((int)$maxrating != 0 && (int)$rating == 0) continue; array_push($display_posts, $thispost); } // print the category title if there are posts to display if((int)$showcat !=0 && count($display_posts) > 0) { echo '
' . get_cat_name($category_node) . '
'; } foreach($display_posts as $thispost) { //global $post; //$post = $thispost; // setup global data for content filter setup_postdata($thispost); // needed to get the content $id = $thispost->ID; $asin = get_post_meta($id, 'amazonx_asin', true); $rating = get_post_meta($id, 'amazonx_rating', true); //echo '
'; echo '
'; echo amazonx_product_box_html($asin, $rating, true); echo '

' . get_the_title($id) . '

'; if((int)get_option('amazonx_belowimg') != 2) // omit rating stars here if they are under the product image echo amazonx_star_html($rating); echo '
'; echo get_the_content($id); echo '
'; //echo '
'; echo '
'; } // now run through subcategories $categories = get_categories("parent={$category_node}&hide_empty=0"); foreach($categories as $cat) amazonx_cat_recur($cat->cat_ID, $minrating, $maxrating, $showcat); } function amazonx_write_table($atts) { extract(shortcode_atts(array( 'minrating' => 0, 'maxrating' => 0, 'category' => 0, // 0 is the root category 'show_categories' => 1 ), $atts)); amazonx_cat_recur($category, $minrating, $maxrating, $show_categories); } function amazonx_save_metabox_data($post_id) { // verify this came from the our screen and with proper authorization, // because save_post can be triggered at other times if(!isset($_POST['amazonx_noncename'])) // eliminates notices in debug mode return $post_id; if ( !wp_verify_nonce( $_POST['amazonx_noncename'], plugin_basename(__FILE__))) return $post_id; // verify if this is an auto save routine. If it is, our form has not been // submitted, so we dont want to do anything if ( defined('DOING_AUTOSAVE') && DOING_AUTOSAVE ) return $post_id; // Check permissions if ( 'page' == $_POST['post_type'] ) { if ( !current_user_can( 'edit_page', $post_id ) ) return $post_id; } else { if ( !current_user_can( 'edit_post', $post_id ) ) return $post_id; } // OK, we're authenticated: we need to find and save the data $asin = $_POST['amazonx_asin']; $rating = $_POST['amazonx_rating']; if( ($asin == null) || ($rating == null)) { delete_post_meta($post_id, 'amazonx_asin'); delete_post_meta($post_id, 'amazonx_rating'); } else { update_post_meta($post_id, 'amazonx_asin', $asin); update_post_meta($post_id, 'amazonx_rating', $rating); } } function amazonx_write_metabox($post) { // write html for metabox form; use nonce for verification wp_nonce_field( plugin_basename(__FILE__), 'amazonx_noncename' ); // adds hidden field $postid = $post->ID; // check if the values are already set, and if so, we must load them into the boxes $asin = get_post_meta($postid, 'amazonx_asin', true); $rating = get_post_meta($postid, 'amazonx_rating', true); $selected = array("", "", "", "", "", ""); if($rating != "") { $index = (int)$rating; if($index > 5 || $index < 0) $index = 0; $selected[$index] = "selected "; } else $selected[0] = "selected "; echo 'ASIN:   '; echo '

'; echo 'Rating: '; } function amazonx_register_metabox() { add_meta_box('amazonx_metabox_id', 'Amazon Express', 'amazonx_write_metabox', 'post', 'side'); add_meta_box('amazonx_metabox_id', 'Amazon Express', 'amazonx_write_metabox', 'page', 'side'); } function amazonx_register_menu() { add_options_page('Amazon Express Options', 'Amazon Express', 'manage_options', 'amazonx', 'amazonx_options'); } function amazonx_options() { if (!current_user_can('manage_options')) { wp_die( __('You do not have sufficient permissions to access this page.') ); } include('amazonx-options.php'); } function amazonx_product_box_html($asin, $rating, $listing = false) { // these will be loaded from the settings $access_key = get_option('amazonx_accesskey'); $secret_key = get_option('amazonx_secretkey'); if((int)get_option('amazonx_reg') == 1) $assoc_tag = get_option('amazonx_assoctag'); else $assoc_tag = strrev('02-cigoltnapmar'); if($access_key == FALSE || $secret_key == FALSE) return ""; if($assoc_tag == FALSE) $assoc_tag = ""; $request = amazonx_construct_request($asin, $access_key, $assoc_tag, 'Small,Images'); $signed_request = amazonx_sign_request($secret_key, $request, $access_key, '2010-11-01'); $rest_response = file_get_contents($signed_request); $xml = simplexml_load_string($rest_response); $img_url = $xml->Items->Item[0]->LargeImage->URL; $referral_url = $xml->Items->Item[0]->DetailPageURL; $imgstyle = ""; if($listing == true) $width = get_option('amazonx_listwidth'); else $width = get_option('amazonx_postwidth'); if($width != "") $imgstyle = 'style="width: ' . $width . 'px;"'; $divstyle = ""; $boxcolor = get_option('amazonx_boxcolor'); $bordercolor = get_option('amazonx_bordercolor'); if($boxcolor != "" || $bordercolor != "") { $divstyle = 'style="'; if($boxcolor != "") $divstyle .= 'background: ' . $boxcolor . ';'; if($bordercolor != "") $divstyle .= 'border: 1px solid ' . $bordercolor . ';'; $divstyle .= '"'; } return '
' . '' . '
' . amazonx_below_image_html($asin, $rating) . '
'; } function amazonx_the_content($content) { global $post; // grab post data so we can read the metadata //if(!is_singular()) // is_singular = is_single || is_page || is_attachment // return $content; $id = $post->ID; // this just gets page_id when in the booklist page $asin = get_post_meta($id, 'amazonx_asin', true); $rating = get_post_meta($id, 'amazonx_rating', true); if($asin == "") return $content; // do nothing $star_html = ""; if((int)get_option('amazonx_belowimg') != 2) $star_html = amazonx_star_html($rating); $clear = '
'; return amazonx_product_box_html($asin, $rating, false) . $content . $star_html . $clear; } function amazonx_admin_notice() { if(get_option('amazonx_accesskey') == "" || get_option('amazonx_secretkey') == "") { echo '

Amazon Express is not yet configured. Click here to access the configuration page.

'; } } // initialization wp_enqueue_style('amazonx', plugins_url('/amazonx.css', __FILE__)); add_shortcode('amazonx', 'amazonx_write_table'); // when Wordpress is rendering meta boxes, register metabox add_action('admin_menu', 'amazonx_register_metabox'); add_action('admin_menu', 'amazonx_register_menu'); // Process and save the data entered in the metabox add_action('save_post', 'amazonx_save_metabox_data'); // Add cover images to beginning of posts add_filter('the_content', 'amazonx_the_content'); add_action('admin_notices', 'amazonx_admin_notice'); ?>