piwigopress.php

<?php
/*
Plugin Name: PiwigoPress
Plugin URI: http://wordpress.org/plugins/piwigopress/
Description: PiwigoPress from any open API Piwigo gallery, swiftly includes your photos in Posts/Pages and/or add randomized thumbnails and menus in your sidebar.
Version: 2.33
Author: Norbert Preining
Author URI: http://www.preining.info/
Text Domain: piwigopress
Domain Path: /languages
*/
if (!defined('ABSPATH')) exit; /* Avoid unpredicted access */
if (defined('PHPWG_ROOT_PATH')) return; /* Avoid Automatic install under Piwigo */
/*  Copyright 2009-2012  VDigital  (email : vpiwigo[at]gmail[dot]com)
    Copyright 2014-2015  Norbert Preining <norbert@preining.info>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/
if (!defined('PWGP_NAME')) define('PWGP_NAME','PiwigoPress');
if (!defined('PWGP_VERSION')) define('PWGP_VERSION','2.3.3');

load_plugin_textdomain('piwigopress', false, dirname (plugin_basename( __FILE__ ) ) . '/languages/');
add_shortcode('PiwigoPress', 'PiwigoPress_photoblog');

require_once('piwigopress_utils.php');
require_once('PiwigoPress_get.php');

function PiwigoPress_photoblog($parm) {
  $ids = PiwigoPress_parseids($parm['id']);
  if (is_string($ids)) {
    return "<!-- PiwigoPress 'id' attribute in error -->\n\n<br>"
    . __('PiwigoPress shortcode attribute "id" is invalid: ' . $ids,'piwigopress') . "<br>\n\n" ;
  }
  $str = '';
  foreach ($ids as $id) {
    $parm['id'] = $id;
    $str .= PiwigoPress_onephoto($parm);
  }
  return $str;
}

function PiwigoPress_parseids($idlist) {
  if ( $idlist == NULL ) {
    return 'id list is required';
  }
  $ids = preg_split("/,/", $idlist, NULL, PREG_SPLIT_NO_EMPTY);
  $result = array();
  foreach ($ids as $range) {
    $tokens = preg_split("/-/", $range);
    if (count($tokens) == 1) {
      $id = $tokens[0];
      if ( !is_numeric($id) or $id < 1) {
        return "id '$id' is not a positive number";
      }
      array_push($result, $id);
    }
    else if (count($tokens) == 2) {
      $begin = $tokens[0];
      if ( !is_numeric($begin) or $begin < 1) {
        return "id '$begin' is not a positive number";
      }
      $end = $tokens[1];
      if ( !is_numeric($end) or $end < 1) {
        return "id '$end' is not a positive number";
      }
      for ($id = (int)$begin; $id <= (int)$end; $id++) {
        array_push($result, $id);
      }
    }
    else {
      return 'id range must contain only one "-" char';
    }
  }
  return $result;
}

function PiwigoPress_onephoto($parm) {
  $default = array(
        'url' => '',
        'id' => 0,     // image_id
        'size' => 'la', // Default large
        'name' => 0,  // Generate picture name, can be 0, 1 or 'auto'
        'desc' => 0,   // Generate picture description
        'class' => '',  // Specific class
        'style' => '',  // Specific style
        'lnktype' => 'picture', // Default generated link 
        'opntype' => '_blank', // Default open type
        'ordertype' => 'random', // Default sort order
        'orderasc' => 0, // Default sort order
    );
  $parm = array_change_key_case( $parm );
  extract( shortcode_atts( $default, $parm ) );
  $previous_url = get_option( 'PiwigoPress_previous_url' );
  if ($previous_url === false) {
    $previous_url = $_SERVER['HTTP_HOST'] . '/piwigo';
    add_option( 'PiwigoPress_previous_url', $previous_url );
  }
  if ($url == '') $url = $previous_url;
  # do not force http:// protocol, but allow for both
  # local (starting with one slash) urls as well as
  # remote but same protocol (starting with //)
  #if (substr($url,0,4)!='http') $url = 'http://' . $url;
  if (substr($url,-1)!='/') $url .= '/';
  if ($previous_url != $url) update_option( 'PiwigoPress_previous_url', $url );
  $deriv = array ( 'sq' => 'square', 'th' => 'thumb', 'sm' => 'small', 'xs' => 'xsmall', '2s' => '2small', 
           'me' => 'medium', 'la' => 'large', 'xl' => 'xlarge', 'xx' => 'xxlarge');
  $response = pwg_get_contents( $url . 'ws.php?method=pwg.images.getInfo&format=php&image_id=' . $id);
  if (!is_wp_error($response)) {
    $thumbc = unserialize($response['body']);
    echo ('<!-- DEBUG ' . $response['body'] . " -->\n");
    //var_dump($thumbc);
    $div = '';
    if ($thumbc["stat"] == 'fail') {
      $div = "PiwigoPress warning: id=$id, http error: " . $thumbc['message'];
    } elseif (isset($thumbc["result"]['derivatives']['square']['url'])) {
      $picture = $thumbc["result"];
      $cats = array_reverse($picture['categories']);
      $picture['tn_url'] = $picture['derivatives'][$deriv[$size]]['url'] ;
      $catlink = '/category/' ;
      if (isset($cats[0]['permalink'])) {
        $catlink .= $cats[0]['permalink'];
      } else {
        $catlink .= $cats[0]['id'];
      }

      $targetlink = $picture['page_url'];
      if ( $lnktype == 'albumpicture' ) $targetlink .= $catlink ;
      $picturename = PWGP_getPictureName($picture, $name);

      // WPML compatibility, passing lang parameters to links URLs
      if ( defined( 'ICL_SITEPRESS_VERSION' ) ) {
        $post_language_details = apply_filters( 'wpml_post_language_details', NULL, get_the_ID() ) ;
        $catlink    = add_query_arg( 'lang', $post_language_details['locale'], trailingslashit( $catlink ) );
        $targetlink = add_query_arg( 'lang', $post_language_details['locale'], $targetlink );
      }

      if ( $lnktype == 'none' )
        $atag = NULL;
      elseif ( $lnktype == 'album' )
        $atag = '<a title="' . htmlspecialchars($cats[0]['name']) . '" href="' 
          . $url . 'index.php?' . $catlink . '" target="' . $opntype . '">';
      else
        $atag = '<a title="' . htmlspecialchars($picturename) . '" href="' 
          . $targetlink . '" target="' . $opntype . '">';

      $picturedesc = $picture['comment'];

      // value of alt tag: title + comment (if present)
      $alt = $picturename;
      if ($picturedesc) {
        if ($alt) $alt .= ' -- ';
        $alt .= $picturedesc;
      }

      if (!$desc) $picturedesc = NULL;
      $div = '<div class="PWGP_shortcode ' . $class . '">' . $atag. '<img class="PWGP_photo" src="' . $picture['tn_url'] . '" alt="' . htmlspecialchars($alt) . '"/>';
      if ($picturename or $picturedesc) {
        $div .= '<blockquote class="PWGP_caption">';
        if ($picturename) {
          $div .= '<div class="PWGP_name">' . stripslashes(htmlspecialchars(strip_tags($picturename))) . '</div>';
        }
        if ($picturedesc) {
          $div .= '<div class="PWGP_desc">' . stripslashes(htmlspecialchars(strip_tags($picturedesc))) . '</div>';
        }
        $div .= '</blockquote>';
      }
      if ( $atag ) $div .= '</a>';
      $div .= "\n
      </div>";
    }
  }
  if ($style!='') $style = ' style="'.$style.'"';
  $str =  '<div id="Photo-' . $id . '-'. $size .'" class="PiwigoPress_photoblog"' . $style . '><!-- PiwigoPress Started -->';
  $str .=  $div . '</div><!-- PiwigoPress Ended -->';
  return $str;
}

class PiwigoPress extends WP_Widget
{
  function __construct(){
    $widget_ops = array('classname' => PWGP_NAME,
      'description' => __( "Adds a thumbnail and its link (to the picture) inside your blog sidebar.",'piwigopress') );
    $control_ops = array('width' => 780, 'height' => 300);
    WP_Widget::__construct(PWGP_NAME, PWGP_NAME, $widget_ops, $control_ops);
    // deprecated in 4.3.0
    // $this->WP_Widget(PWGP_NAME, PWGP_NAME, $widget_ops, $control_ops);
  }
  // Code generator
  function widget($args, $gallery){
    include 'PiwigoPress_widget.php';
  }
  function update($new_gallery, $old_gallery){
    $gallery = $old_gallery;
    $gallery['title'] = strip_tags(stripslashes($new_gallery['title']));
    $gallery['thumbnail'] = (bool) $new_gallery['thumbnail'];
    $gallery['thumbnail_size'] = strip_tags(stripslashes($new_gallery['thumbnail_size']));
    $gallery['format'] = strip_tags(stripslashes($new_gallery['format']));
    $gallery['piwigo'] = strip_tags(stripslashes($new_gallery['piwigo']));
    $gallery['external'] = strip_tags(stripslashes($new_gallery['external']));
    $gallery['number'] = intval(strip_tags(stripslashes($new_gallery['number'])));
    $gallery['category'] = intval(strip_tags(stripslashes($new_gallery['category'])));
    $gallery['from'] = intval(strip_tags(stripslashes($new_gallery['from'])));
    $gallery['divclass'] = strip_tags(stripslashes($new_gallery['divclass']));
    $gallery['class'] = strip_tags(stripslashes($new_gallery['class']));
    $gallery['most_visited'] = (strip_tags(stripslashes($new_gallery['most_visited'])) == 'true') ? 'true':'false';
    $gallery['best_rated'] = (strip_tags(stripslashes($new_gallery['best_rated'])) == 'true') ? 'true':'false';
    $gallery['most_commented'] = (strip_tags(stripslashes($new_gallery['most_commented'])) == 'true') ? 'true':'false';
    $gallery['random'] = (strip_tags(stripslashes($new_gallery['random'])) == 'true') ? 'true':'false';
    $gallery['recent_pics'] = (strip_tags(stripslashes($new_gallery['recent_pics'])) == 'true') ? 'true':'false';
    $gallery['calendar'] = (strip_tags(stripslashes($new_gallery['calendar'])) == 'true') ? 'true':'false';
    $gallery['tags'] = (strip_tags(stripslashes($new_gallery['tags'])) == 'true') ? 'true':'false';
    $gallery['comments'] = (strip_tags(stripslashes($new_gallery['comments'])) == 'true') ? 'true':'false';
    $gallery['mbcategories'] = (strip_tags(stripslashes($new_gallery['mbcategories'])) == 'true') ? 'true':'false';
    $gallery['allsel'] = (strip_tags(stripslashes($new_gallery['allsel'])) == 'true') ? 'true':'false';
    $gallery['filter'] = (strip_tags(stripslashes($new_gallery['filter'])) == 'true') ? 'true':'false';
    $gallery['lnktype'] = strip_tags(stripslashes($new_gallery['lnktype']));
    $gallery['opntype'] = strip_tags(stripslashes($new_gallery['opntype']));
    $gallery['ordertype'] = strip_tags(stripslashes($new_gallery['ordertype']));
    $gallery['orderasc'] = (strip_tags(stripslashes($new_gallery['orderasc'])) == 'true') ? 'true':'false';
    if ( current_user_can('unfiltered_html') ) {
      $gallery['text'] =  $new_gallery['text'];
      $gallery['precode'] =  $new_gallery['precode'];
      $gallery['postcode'] =  $new_gallery['postcode'];
    } else {
      // wp_filter_post_kses() expects slashed
      $gallery['text'] = stripslashes( wp_filter_post_kses( addslashes($new_gallery['text']) ) );
      $gallery['precode'] = stripslashes( wp_filter_post_kses( addslashes($new_gallery['precode']) ) );
      $gallery['postcode'] = stripslashes( wp_filter_post_kses( addslashes($new_gallery['postcode']) ) );
    }
    return $gallery;
  }
  function form($gallery){
    // Options
    include 'PiwigoPress_options.php';
  }
}

// Register 
function PiwigoPress_Init() {
      register_widget('PiwigoPress');
}
add_action('widgets_init', PWGP_NAME . '_Init');

// Style allocation
function PiwigoPress_load_in_head() {
  if (defined('PWGP_CSS_FILE')) return; // Avoid several links to CSS in case of several usage of PiwigoPress... 
  define('PWGP_CSS_FILE','');
  if ( is_admin() ) {
    echo '<link media="all" type="text/css" href="' . 
      plugins_url( 'piwigopress/css/piwigopress_adm.min.css?ver=') . PWGP_VERSION . '" id="piwigopress_a-css" rel="stylesheet">'; // that's fine
  }
  else {
    echo '<link media="all" type="text/css" href="' . 
      plugins_url( 'piwigopress/css/piwigopress.css?ver=') . PWGP_VERSION . '" id="piwigopress_c-css" rel="stylesheet">'; // that's fine
  }
}
add_action('wp_head',  PWGP_NAME . '_load_in_head');

// Script to be used
function PiwigoPress_load_in_footer() {
  /* Scripts */
  wp_register_script( 'piwigopress_s', plugins_url( 'piwigopress/js/piwigopress.js'), array('jquery'), PWGP_VERSION );
  wp_enqueue_script( 'jquery'); // include it even if it's done
  if ( is_admin() ) {
    wp_register_script( 'piwigopress_a', plugins_url( 'piwigopress/js/piwigopress_adm.min.js'), array('jquery'), PWGP_VERSION );
    wp_localize_script( 'piwigopress_a', 'PwgpAjax', array(
      'ajaxUrl' => admin_url('admin-ajax.php'),
      'nonce' => wp_create_nonce('piwigopress-admin-nonce')
    ));
    wp_enqueue_script( 'jquery-ui-draggable' );
    wp_enqueue_script( 'jquery-ui-droppable' );
    wp_enqueue_script( 'piwigopress_a' );
  }
  wp_enqueue_script( 'piwigopress_s' );
}
add_action('wp_footer',  PWGP_NAME . '_load_in_footer');

// proxy a categories call from another server
function PiwigoPress_ajax_categories() {
  $url = PWGP_secure($_POST['url']);
  $nonce = $_POST['nonce'];

  // check nonce and permissions
  if (!wp_verify_nonce($nonce, 'piwigopress-admin-nonce') ||
    (!current_user_can('edit_posts') && !current_user_can('edit_pages'))) {
    http_response_code(400);
    die;
  }

  $url.= "ws.php?format=json&method=pwg.categories.getList&recursive=true";
  $response = pwg_get_contents($url);
  if (is_wp_error($response)) {
    http_response_code(400);
    $error_message = $response->get_error_message();
    echo "Error: $error_message";
  } else {
    header("Content-Type: application/json");
    echo $response['body'];
  }
  exit;
}
add_action('wp_ajax_pwgp-categories', PWGP_NAME . '_ajax_categories');

// proxy thumbnails call from another server
function PiwigoPress_ajax_thumbnails() {
  require_once('piwigopress_thumbnails_reloader.php');
  exit;
}
add_action('wp_ajax_pwgp-thumbnails', PWGP_NAME . '_ajax_thumbnails');

function PiwigoPress_register_plugin() {
    if (!current_user_can('edit_posts') && !current_user_can('edit_pages'))
        return;
    add_action('admin_head', PWGP_NAME . '_load_in_head');
}
add_action('init', PWGP_NAME . '_register_plugin');

// Admin code only if distributed and in Admin
if ( is_admin() ) {
    @include 'piwigopress_admin.php';
}
function piwigopress_plugin_links($links, $file) {  
  $plugin = plugin_basename(__FILE__);  
  
  if ($file == $plugin) // only for this plugin
    return array_merge( $links,
      // array( sprintf( '<a href="options-general.php?page=%s">%s</a>', $plugin, __('Settings') ) ),
      array( '<a href="http://wordpress.org/extend/plugins/piwigopress/faq/" target="_blank">' . __('FAQ') . '</a>' ),
      array( '<a href="http://wordpress.org/support/plugin/piwigopress" target="_blank">' . __('PiwigoPress Support') . '</a>' ),
      array( '<a href="http://piwigo.org/" target="_blank">' . __('Piwigo site') . '</a>' )
    );
  return $links;
}
add_filter( 'plugin_row_meta', PWGP_NAME . '_plugin_links', 10, 2 );

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