469 lines
14 KiB
PHP
469 lines
14 KiB
PHP
<?php
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/**
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* @brief entryPhotoExifWidget, a plugin for Dotclear 2
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*
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* @package Dotclear
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* @subpackage Plugin
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*
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* @author Jean-Christian Denis and contibutors
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*
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* @copyright Jean-Christian Denis
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* @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
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*/
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if (!defined('DC_RC_PATH')) {
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return null;
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}
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$core->addBehavior('initWidgets', ['entryPhotoExifWidget', 'setWidget']);
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class entryPhotoExifWidget
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{
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public static $supported_post_type = ['post', 'page', 'gal', 'galitem'];
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public static $widget_content = '<ul>%s</ul>';
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public static $widget_text = '<li class="epew-%s"><strong>%s</strong> %s</li>';
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public static $widget_thumb = '<li><img class="img-thumbnail" alt="%s" src="%s" /></li>';
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public static function setWidget($w)
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{
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global $core;
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$categories_combo = ['-' => '', __('Uncategorized') => 'null'];
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$categories = $core->blog->getCategories();
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while ($categories->fetch()) {
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$cat_title = html::escapeHTML($categories->cat_title);
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$categories_combo[$cat_title] = $categories->cat_id;
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}
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$thumbnail_combo = [
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__('None') => '',
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__('square') => 'sq',
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__('thumbnail') => 't',
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__('small') => 's',
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__('medium') => 'm'
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];
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$w->create(
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'epew',
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__('Entry Photo Exif'),
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['entryPhotoExifWidget', 'getWidget'],
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null,
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__('Show images exif of an entry')
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);
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$w->epew->setting(
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'title',
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__('Title:'),
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__('Photos EXIF'),
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'text'
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);
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$w->epew->setting(
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'showmeta_Title',
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sprintf(__('Show metadata: %s'), __('Title')),
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0,
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'check'
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);
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$w->epew->setting(
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'showmeta_Description',
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sprintf(__('Show metadata: %s'), __('Descritpion')),
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0,
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'check'
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);
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$w->epew->setting(
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'showmeta_Location',
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sprintf(__('Show metadata: %s'), __('Location')),
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0,
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'check'
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);
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$w->epew->setting(
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'showmeta_DateTimeOriginal',
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sprintf(__('Show metadata: %s'), __('Date')),
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0,
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'check'
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);
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$w->epew->setting(
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'showmeta_Make',
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sprintf(__('Show metadata: %s'), __('Manufacturer')),
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0,
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'check'
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);
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$w->epew->setting(
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'showmeta_Model',
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sprintf(__('Show metadata: %s'), __('Model')),
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1,
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'check'
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);
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$w->epew->setting(
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'showmeta_Lens',
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sprintf(__('Show metadata: %s'), __('Lens')),
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1,
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'check'
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);
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$w->epew->setting(
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'showmeta_ExposureProgram',
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sprintf(__('Show metadata: %s'), __('Exposure program')),
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0,
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'check'
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);
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$w->epew->setting(
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'showmeta_Exposure',
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sprintf(__('Show metadata: %s'), __('Exposure time')),
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1,
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'check'
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);
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$w->epew->setting(
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'showmeta_FNumber',
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sprintf(__('Show metadata: %s'), __('Aperture')),
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1,
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'check'
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);
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$w->epew->setting(
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'showmeta_ISOSpeedRatings',
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sprintf(__('Show metadata: %s'), __('Iso speed rating')),
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1,
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'check'
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);
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$w->epew->setting(
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'showmeta_FocalLength',
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sprintf(__('Show metadata: %s'), __('Focal lengh')),
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1,
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'check'
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);
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$w->epew->setting(
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'showmeta_ExposureBiasValue',
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sprintf(__('Show metadata: %s'), __('Exposure bias value')),
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0,
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'check'
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);
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$w->epew->setting(
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'showmeta_MeteringMode',
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sprintf(__('Show metadata: %s'), __('Metering mode')),
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0,
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'check'
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);
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$w->epew->setting(
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'showmeta',
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__('Show empty metadata'),
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0,
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'check'
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);
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$w->epew->setting(
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'category',
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__('Category limit:'),
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'',
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'combo',
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$categories_combo
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);
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$w->epew->setting(
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'thumbsize',
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__('Thumbnail size:'),
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't',
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'combo',
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$thumbnail_combo
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);
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$w->epew->setting(
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'content_only',
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__('Content only'),
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0,
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'check'
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);
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$w->epew->setting(
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'class',
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__('CSS class:'),
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''
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);
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$w->epew->setting(
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'offline',
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__('Offline'),
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0,
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'check'
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);
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}
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public static function getWidget($w)
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{
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global $core, $_ctx;
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# Widget is offline
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if ($w->offline) {
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return null;
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}
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# Not in post context
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if (!$_ctx->exists('posts') || !$_ctx->posts->post_id) {
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return null;
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}
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# Not supported post type
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if (!in_array($_ctx->posts->post_type, self::$supported_post_type)) {
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return null;
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}
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# Category limit
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if ($w->category == 'null' && $_ctx->posts->cat_id !== null
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|| $w->category != 'null' && $w->category != '' && $w->category != $_ctx->posts->cat_id) {
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return null;
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}
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# Content lookup
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$text = $_ctx->posts->post_excerpt_xhtml . $_ctx->posts->post_content_xhtml;
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# Find source images
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$images = self::getImageSource($core, $text, $w->thumbsize);
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# No images
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if (empty($images)) {
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return null;
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}
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$contents = '';
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# Loop through images
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foreach ($images as $img) {
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# List metas
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$metas = self::getImageMeta($core, $img['source']);
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$content = '';
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foreach ($metas as $k => $v) {
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# Don't show unwanted metadata or empty metadata
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if (!$w->__get('showmeta_' . $k) || !$w->showmeta && empty($v[1])) {
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continue;
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}
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$content .= sprintf(self::$widget_text, $k, $v[0], $v[1]);
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}
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# No meta
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if (empty($content)) {
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return null;
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}
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# Thumbnail
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if ($img['thumb']) {
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$content = sprintf(self::$widget_thumb, $img['title'], $img['thumb']) .
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$content;
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}
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$contents .= $content;
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}
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# Nothing found
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if (empty($contents)) {
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return null;
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}
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# Paste widget
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return $w->renderDiv(
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$w->content_only,
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'photoExifWidget ' . $w->class,
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'',
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($w->title ? $w->renderTitle(html::escapeHTML($w->title)) : '') .
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sprintf(self::$widget_content, $contents)
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);
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}
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public static function getImageSource($core, $subject, $size = '')
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{
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# Path and url
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$p_url = $core->blog->settings->system->public_url;
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$p_site = preg_replace('#^(.+?//.+?)/(.*)$#', '$1', $core->blog->url);
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$p_root = $core->blog->public_path;
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# Image pattern
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$pattern = '(?:' . preg_quote($p_site, '/') . ')?' . preg_quote($p_url, '/');
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$pattern = sprintf('/<img.+?src="%s(.*?\.(?:jpg|jpeg|png|gif))"[^>]+/msu', $pattern);
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# No image
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if (!preg_match_all($pattern, $subject, $m)) {
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return;
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}
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$res = $duplicate = [];
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$allowed_ext = ['.jpg', '.JPG', '.jpeg', '.JPEG', '.png', '.PNG', '.gif', '.GIF'];
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# Loop through images
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foreach ($m[1] as $i => $img) {
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$src = $thb = $alt = false;
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$info = path::info($img);
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$base = $info['base'];
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$ext = $info['extension'];
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# Not original
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if (preg_match('/^\.(.+)_(sq|t|s|m)$/', $base, $mbase)) {
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$base = $mbase[1];
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}
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# Full path
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$f = $p_root . '/' . $info['dirname'] . '/' . $base;
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# Find extension
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foreach ($allowed_ext as $end) {
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if (file_exists($f . $end)) {
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$src = $f . $end;
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break;
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}
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}
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# No file
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if (!$src || in_array($src, $duplicate)) {
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continue;
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}
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# Prevent double images
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$duplicate[] = $src;
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# Find thumbnail
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if (!empty($size)) {
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$t = $p_root . '/' . $info['dirname'] . '/.' . $base . '_' . $size . '.jpg';
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if (file_exists($t)) {
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$thb = $p_url . (dirname($img) != '/' ? dirname($img) : '') . '/.' . $base . '_' . $size . '.jpg';
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}
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}
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# Find image description
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if (preg_match('/alt="([^"]+)"/', $m[0][$i], $malt)) {
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$alt = $malt[1];
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}
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$res[] = [
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'source' => $src,
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'thumb' => $thb,
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'title' => $alt
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];
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}
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return $res;
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}
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public static function getImageMeta($core, $src)
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{
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$metas = [
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'Title' => [__('Title:'), ''],
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'Description' => [__('Description:'), ''],
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'Location' => [__('Location:'), ''],
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'DateTimeOriginal' => [__('Date:'), ''],
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'Make' => [__('Manufacturer:'), ''],
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'Model' => [__('Model:'), ''],
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'Lens' => [__('Lens:'), ''],
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'ExposureProgram' => [__('Program:'), ''],
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'Exposure' => [__('Speed:'), ''],
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'FNumber' => [__('Aperture:'), ''],
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'ISOSpeedRatings' => [__('ISO:'), ''],
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'FocalLength' => [__('Focal:'), ''],
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'ExposureBiasValue' => [__('Exposure Bias:'), ''],
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'MeteringMode' => [__('Metering mode:'), '']
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];
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$exp_prog = [
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0 => __('Not defined'),
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1 => __('Manual'),
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2 => __('Normal program'),
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3 => __('Aperture priority'),
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4 => __('Shutter priority'),
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5 => __('Creative program'),
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6 => __('Action program'),
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7 => __('Portait mode'),
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8 => __('Landscape mode')
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];
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$met_mod = [
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0 => __('Unknow'),
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1 => __('Average'),
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2 => __('Center-weighted average'),
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3 => __('Spot'),
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4 => __('Multi spot'),
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5 => __('Pattern'),
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6 => __('Partial'),
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7 => __('Other')
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];
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if (!$src || !file_exists($src)) {
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return $metas;
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}
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$m = imageMeta::readMeta($src);
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# Title
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if (!empty($m['Title'])) {
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$metas['Title'][1] = html::escapeHTML($m['Title']);
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}
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# Description
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if (!empty($m['Description'])) {
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if (!empty($m['Title']) && $m['Title'] != $m['Description']) {
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$metas['Description'][1] = html::escpeHTML($m['Description']);
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}
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}
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# Location
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if (!empty($m['City'])) {
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$metas['Location'][1] .= html::escapeHTML($m['City']);
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}
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if (!empty($m['City']) && !empty($m['country'])) {
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$metas['Location'][1] .= ', ';
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}
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if (!empty($m['country'])) {
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$metas['Location'][1] .= html::escapeHTML($m['Country']);
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}
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# DateTimeOriginal
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if (!empty($m['DateTimeOriginal'])) {
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$dt_ft = $core->blog->settings->system->date_format . ', ' . $core->blog->settings->system->time_format;
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$dt_tz = $core->blog->settings->system->blog_timezone;
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$metas['DateTimeOriginal'][1] = dt::dt2str($dt_ft, $m['DateTimeOriginal'], $dt_tz);
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}
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# Make
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if (isset($m['Make'])) {
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$metas['Make'][1] = html::escapeHTML($m['Make']);
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}
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# Model
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if (isset($m['Model'])) {
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$metas['Model'][1] = html::escapeHTML($m['Model']);
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}
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# Lens
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if (isset($m['Lens'])) {
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$metas['Lens'][1] = html::escapeHTML($m['Lens']);
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}
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# ExposureProgram
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if (isset($m['ExposureProgram'])) {
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$metas['ExposureProgram'][1] = $exp_prog[$m['ExposureProgram']] ?? $m['ExposureProgram'];
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}
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# Exposure
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if (!empty($m['Exposure'])) {
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$metas['Exposure'][1] = $m['Exposure'] . 's';
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}
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# FNumber
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if (!empty($m['FNumber'])) {
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$ap = sscanf($m['FNumber'], '%d/%d');
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$metas['FNumber'][1] = $ap ? 'f/' . ($ap[0] / $ap[1]) : $m['FNumber'];
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}
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# ISOSpeedRatings
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if (!empty($m['ISOSpeedRatings'])) {
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$metas['ISOSpeedRatings'][1] = $m['ISOSpeedRatings'];
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}
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# FocalLength
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if (!empty($m['FocalLength'])) {
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$fl = sscanf($m['FocalLength'], '%d/%d');
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$metas['FocalLength'][1] = $fl ? $fl[0] / $fl[1] . 'mm' : $m['FocalLength'];
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}
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# ExposureBiasValue
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if (isset($m['ExposureBiasValue'])) {
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$metas['ExposureBiasValue'][1] = $m['ExposureBiasValue'];
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}
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# MeteringMode
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if (isset($m['MeteringMode'])) {
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$metas['MeteringMode'][1] = isset($met_mod[$m['MeteringMode']]) ?
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$exp_prog[$m['MeteringMode']] : $m['MeteringMode'];
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}
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return $metas;
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}
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}
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