/**
* Analyse the shortcode vars relevant for the day type.
* @global type $UNC_GALLERY
* @param type $a
* @return boolean
*/
function unc_day_var_init($a)
{
global $UNC_GALLERY;
if ($UNC_GALLERY['debug']) {
XMPP_ERROR_trace(__FUNCTION__, func_get_args());
}
// we convert the start time and end time to unix timestamp for better
// comparison
$UNC_GALLERY['display']['range'] = array('start_time' => false, 'end_time' => false);
foreach ($UNC_GALLERY['display']['range'] as $key => $value) {
if ($a[$key]) {
//re-name the variable
$UNC_GALLERY['display']['date_range'][$key] = $a[$key];
// convert to UNIX timestamp
$dtime = DateTime::createFromFormat("Y-m-d G:i:s", $a[$key]);
// TODO: catch here if the date is invalid
$UNC_GALLERY['display']['range'][$key] = $dtime->getTimestamp();
// get the date for the same
$var_name = 'date_' . $key;
${$var_name} = substr($a[$key], 0, 10);
}
}
if ($a['end_time']) {
$date_end_time = substr(trim($a['end_time']), 0, 10);
}
if ($a['start_time']) {
$date_start_time = substr(trim($a['start_time']), 0, 10);
}
$UNC_GALLERY['display']['date_description'] = false;
// false by default, only true if not set explicitly (latest or random date)
if ($a['end_time'] && $a['start_time']) {
$date_arr = unc_day_date_span($date_start_time, $date_end_time);
$UNC_GALLERY['display']['dates'] = $date_arr;
} else {
if ($a['end_time']) {
$date_str = $date_end_time;
$UNC_GALLERY['display']['dates'] = array($date_str);
} else {
if ($a['start_time']) {
$date_str = $date_start_time;
$UNC_GALLERY['display']['dates'] = array($date_str);
} else {
if ($a['date'] && in_array($a['date'], $UNC_GALLERY['keywords']['date'])) {
// we have a latest or random date
// get the latest or a random date if required
if ($a['date'] == 'random') {
$date_str = unc_day_date_random();
} else {
if ($a['date'] == 'latest') {
$date_str = unc_day_date_latest();
}
}
if (!$date_str) {
// we have no images in the database
$UNC_GALLERY['display']['files'] = array();
$UNC_GALLERY['display']['file'] = false;
$UNC_GALLERY['display']['dates'] = array();
} else {
$UNC_GALLERY['display']['date_description'] = true;
$UNC_GALLERY['display']['dates'] = array($date_str);
}
} else {
if ($a['date'] && strstr($a['date'], ",")) {
// we have several dates in the string
$dates = explode(",", $a['date']);
if (count($dates) > 2) {
echo unc_display_errormsg("You can only enter 2 dates!");
return false;
}
// validate both dates
$date_str1 = unc_day_validate_date(trim($dates[0]));
$date_str2 = unc_day_validate_date(trim($dates[1]));
if (!$date_str1 || !$date_str2) {
echo unc_display_errormsg("All dates needs to be in the format '2016-01-31'");
return false;
}
// create a list of dates between the 1st and the 2nd
$date_arr = unc_day_date_span($dates[0], $dates[1]);
$UNC_GALLERY['display']['dates'] = $date_arr;
} else {
if ($a['date']) {
$date_str = unc_day_validate_date($a['date']);
if (!$date_str) {
echo unc_display_errormsg("All dates needs to be in the format '2016-01-31'");
return false;
}
$UNC_GALLERY['display']['dates'] = array($date_str);
}
}
}
}
}
}
// get the actual images
if ($a['file'] && $a['type'] == 'day') {
$UNC_GALLERY['display']['file'] = unc_tools_filename_validate(trim($a['file']));
$UNC_GALLERY['display']['files'] = array();
} else {
$UNC_GALLERY['display']['file'] = false;
$UNC_GALLERY['display']['files'] = unc_day_images_list();
}
$UNC_GALLERY['display']['date_selector'] = false;
if (in_array('calendar', $UNC_GALLERY['display']['options'])) {
$UNC_GALLERY['display']['date_selector'] = 'calendar';
} else {
if (in_array('datelist', $UNC_GALLERY['display']['options'])) {
$UNC_GALLERY['display']['date_selector'] = 'datelist';
}
}
if (count($UNC_GALLERY['display']['files']) == 0 && !$UNC_GALLERY['display']['file']) {
if ($UNC_GALLERY['debug']) {
XMPP_ERROR_trace("No files found in date range!");
}
if ($UNC_GALLERY['no_image_alert'] == 'error') {
$UNC_GALLERY['errors'][] = unc_display_errormsg("No images found for this date!");
} else {
if ($UNC_GALLERY['no_image_alert'] == 'not_found') {
$UNC_GALLERY['errors'][] = "No images available.";
}
}
return false;
}
return true;
}
/**
* converts a 2013-12-12 to 2013/12/12 and checks if the file exists
*
* @global type $UNC_GALLERY
* @param type $date
* @return type
*/
function unc_tools_date_path($date)
{
global $UNC_GALLERY;
if ($UNC_GALLERY['debug']) {
XMPP_ERROR_trace(__FUNCTION__, func_get_args());
}
$date_obj = new DateTime($date . " 00:00:00");
if ($date_obj) {
$format = implode("/", array('Y', 'm', 'd'));
$date_str = $date_obj->format($format);
$photo_folder = $UNC_GALLERY['upload_path'] . "/" . $UNC_GALLERY['photos'];
if (!file_exists($photo_folder . "/" . $date_str)) {
if ($UNC_GALLERY['no_image_alert'] == 'error') {
$UNC_GALLERY['errors'][] = unc_display_errormsg("No images found for this date!");
} else {
if ($UNC_GALLERY['no_image_alert'] == 'not_found') {
$UNC_GALLERY['errors'][] = "No images available for {$date}";
}
}
return false;
}
} else {
$UNC_GALLERY['errors'][] = unc_display_errormsg("Date not found (invalid date)");
return false;
}
return $date_str;
}
/**
* processes one uploaded file. Creates folders, moves files
*
* @global type $UNC_GALLERY
* @param type $i
* @param type $overwrite
* @return boolean
*/
function unc_uploads_process_file($i, $overwrite)
{
global $UNC_GALLERY;
if ($UNC_GALLERY['debug']) {
XMPP_ERROR_trace(__FUNCTION__, func_get_args());
}
$action = false;
//$_FILES(1) {
// ["userImage"]=> array(5) {
// ["name"]=> array(1) { [0]=> string(23) "2013-11-02 21.00.38.jpg" }
// ["type"]=> array(1) { [0]=> string(10) "image/jpeg" }
// ["tmp_name"]=> array(1) { [0]=> string(14) "/tmp/phptgNK2k" }
// ["error"]=> array(1) { [0]=> int(0) }
// ["size"]=> array(1) { [0]=> int(213485) }
// }
//}
// the FILE array from the server
if (isset($UNC_GALLERY['import'])) {
$type = 'import';
$F = $UNC_GALLERY['import'];
} else {
$type = 'upload';
$F = $UNC_GALLERY['upload_files'];
}
// get the current path of the temp name
if ($type == 'upload' && is_uploaded_file($F['tmp_name'][$i])) {
$sourcePath = $F['tmp_name'][$i];
} else {
if ($type == 'import' && is_file($F['tmp_name'][$i])) {
$sourcePath = $F['tmp_name'][$i];
} else {
return array('date' => false, 'action' => "Cannot find uploaded file {$F['tmp_name'][$i]}!");
}
}
// is there an error with the file?
if ($F["error"][$i] > 0) {
return array('date' => false, 'action' => "Unable to read the file, upload cancelled of file " . $F['name'][$i]);
}
// if there is an imagesize, we have a valid image
$image_check = getimagesize($F['tmp_name'][$i]);
if (!$image_check) {
return array('date' => false, 'action' => "Not image file, upload cancelled of file " . $F['name'][$i]);
}
// let's set variables for the currently uploaded file so we do not have to get the same data twice.
$UNC_GALLERY['upload_file_info'] = array('image_size' => $image_check, 'temp_name' => $F['tmp_name'][$i], 'type' => $type);
$original_width = $image_check[0];
$original_height = $image_check[1];
// let's make sure the image is not 0-size
if ($original_width == 0 || $original_height == 0) {
echo unc_display_errormsg("Image size {$F['name'][$i]} = 0");
return false;
}
// let's shrink only if we need to
if ($original_width == $UNC_GALLERY['thumbnail_height'] && $original_height == $UNC_GALLERY['thumbnail_height']) {
return array('date' => false, 'action' => "Image size {$F['name'][$i]} is smaller than thumbnail!");
}
// get imagetype
$exif_imagetype = $image_check[2];
if (!$exif_imagetype) {
return array('date' => false, 'action' => "Could not determine image type of file " . $F['name'][$i] . ", upload cancelled!");
}
$UNC_GALLERY['upload_file_info']['exif_imagetype'] = $exif_imagetype;
// get mime-type and check if it's in the list of valid ones
$mime_type = image_type_to_mime_type($exif_imagetype);
if (!isset($mime_type, $UNC_GALLERY['valid_filetypes'])) {
return array('date' => false, 'action' => "Invalid file type :" . $F["type"][$i]);
} else {
// get extension for optional resize
$extension = $UNC_GALLERY['valid_filetypes'][$mime_type];
}
$UNC_GALLERY['upload_file_info']['extension'] = $extension;
// we set the new filename of the image including extension so there is no guessing
$file_no_ext = pathinfo($F['name'][$i], PATHINFO_FILENAME);
$target_filename = $file_no_ext . "." . $extension;
$UNC_GALLERY['upload_file_info']['target_filename'] = $target_filename;
// we need the exif date to know when the image was taken
$date_str = unc_image_date($sourcePath);
if (!$date_str) {
return array('date' => false, 'action' => "Cannot read EXIF or IPCT of file {$sourcePath}");
}
$UNC_GALLERY['upload_file_info']['date_str'] = $date_str;
$date_check = date_create($date_str);
if (!$date_check) {
return array('date' => false, 'action' => "'{$date_str}' is invalid date in EXIF or IPCT");
}
// echo "File date is $date_str";
// create all the by-day folders
$date_obj = unc_date_folder_create($date_str);
// if it failed return back
if (!$date_obj) {
return array('date' => false, 'action' => "Could not create date folders!");
}
// get the upload directory
$dirPath = $UNC_GALLERY['upload_path'];
// let's make the path with system-specific dir. separators
$format = implode("/", array('Y', 'm', 'd'));
$date_str_folder = $date_obj->format($format);
// echo "Folder date is $date_str_folder<br>";
$target_subfolder = $dirPath . "/" . $UNC_GALLERY['photos'] . "/" . $date_str_folder;
$thumb_subfolder = $dirPath . "/" . $UNC_GALLERY['thumbnails'] . "/" . $date_str_folder;
$new_path = $target_subfolder . "/" . $target_filename;
$new_thumb_path = $thumb_subfolder . "/" . $target_filename;
// act on overwrite options
if ($overwrite == 'new' && file_exists($new_path)) {
return array('date' => false, 'action' => "skipped file {$target_filename}, already exists<br>");
} else {
if ($overwrite == 'existing' && !file_exists($new_path)) {
return array('date' => false, 'action' => "skipped file {$target_filename}, is new<br>");
} else {
if ($overwrite == 'existing' && file_exists($new_path)) {
unlink($new_path);
$action = 'overwritten';
} else {
if ($overwrite == 'all' && file_exists($new_path)) {
unlink($new_path);
$action = 'overwritten';
}
}
}
}
// finally, move the file
if ($UNC_GALLERY['picture_long_edge'] > 0) {
$resize_check = unc_import_image_resize($F['tmp_name'][$i], $new_path, $UNC_GALLERY['picture_long_edge'], $extension, $UNC_GALLERY['image_quality'], 'max_height');
if (!$resize_check) {
return array('date' => false, 'action' => "Could not resize {$F['name'][$i]} from {$F['tmp_name'][$i]} to {$new_path}");
}
} else {
if ($type == 'upload') {
$rename_chk = move_uploaded_file($F['tmp_name'][$i], $new_path);
} else {
// import
$rename_chk = copy($F['tmp_name'][$i], $new_path);
}
if (!$rename_chk) {
return array('date' => false, 'action' => "Could not move {$F['name'][$i]} from {$F['tmp_name'][$i]} to {$new_path}");
}
}
// chmod file to make sure it cannot be executed
$check_chmod = chmod($new_path, 0644);
if (!$check_chmod) {
return array('date' => false, 'action' => "Could not chmod 644 file {$new_path}");
}
// now make the thumbnail
$thumb_format = $UNC_GALLERY['thumbnail_format'];
$check = unc_import_image_resize($new_path, $new_thumb_path, $UNC_GALLERY['thumbnail_height'], $UNC_GALLERY['thumbnail_ext'], $UNC_GALLERY['thumbnail_quality'], $thumb_format);
if (!$check) {
return array('date' => false, 'action' => "Could not create the thumbnail for {$F['tmp_name'][$i]} / {$new_thumb_path}!");
} else {
if (!$action) {
$action = 'written';
}
}
$check_xmp = unc_image_info_write($new_path);
if (!$check_xmp) {
return array('date' => false, 'action' => "Could not write XMP/IPCT/EXIF data to file");
}
return array('date' => $date_str, 'action' => $target_filename . ": " . $action);
}
/**
* Process and validate $UNC_GALLERY['display'] settings
*
* @global type $UNC_GALLERY
* @param type $atts
* @return type
*/
function unc_gallery_display_var_init($atts = array())
{
global $UNC_GALLERY, $post;
if ($UNC_GALLERY['debug']) {
XMPP_ERROR_trace(__FUNCTION__, func_get_args());
}
$possible_attributes = array('type' => 'day', 'date' => 'latest', 'file' => false, 'featured' => false, 'options' => false, 'start_time' => false, 'end_time' => false, 'description' => false, 'details' => false, 'echo' => false, 'offset' => false, 'limit_rows' => false, 'limit_images' => false, 'filter' => false, 'files' => false);
// defaults
$UNC_GALLERY['not_shown'] = false;
$UNC_GALLERY['errors'] = array();
// check if all the attributes exist
foreach ($atts as $key => $value) {
if (!isset($possible_attributes[$key])) {
if ($UNC_GALLERY['debug']) {
XMPP_ERROR_trigger("You have an invalid setting '{$key}' in your gallery shortcode!");
}
echo unc_display_errormsg("You have an invalid setting '{$key}' in your gallery shortcode!");
return false;
}
}
// parse the attributes
$a = shortcode_atts($possible_attributes, $atts);
$type = $a['type'];
// several featured
// we do not need to validate featured files since we only compare with the list
// of found files in a folder
if (strstr($a['featured'], ",")) {
$UNC_GALLERY['display']['featured_image'] = explode(",", trim($a['featured']));
} else {
if ($a['featured']) {
$UNC_GALLERY['display']['featured_image'] = array(trim($a['featured']));
} else {
$UNC_GALLERY['display']['featured_image'] = array();
}
}
// there can be several options, separated by space
if (!$a['options']) {
$options = array();
} else {
$options = explode(" ", trim($a['options']));
}
$UNC_GALLERY['display']['options'] = $options;
$UNC_GALLERY['display']['echo'] = trim($a['echo']);
// icon or image?
$thumb = false;
if ($type == 'icon') {
$thumb = true;
}
$UNC_GALLERY['display']['filter'] = trim($a['filter']);
$UNC_GALLERY['display']['description'] = trim($a['description']);
$UNC_GALLERY['display']['limit_rows'] = trim($a['limit_rows']);
$UNC_GALLERY['display']['limit_images'] = trim($a['limit_images']);
// date
$keywords = $UNC_GALLERY['keywords'];
if ($type == 'day') {
$check = unc_day_var_init($a);
} else {
if ($type == 'filter') {
$check = unc_filter_var_init($a);
}
}
if (!$check) {
// there was some critical error, let's return that
return false;
}
// details
$details_raw = $a['details'];
$UNC_GALLERY['display']['details'] = false;
if ($details_raw) {
// explode by colon
$file_details = explode(";", $details_raw);
if (count($file_details) == 0) {
echo unc_display_errormsg("File details are invalid!");
return;
}
foreach ($file_details as $file_detail) {
$tmp_arr = explode(":", $file_detail);
if (count($tmp_arr) !== 2) {
echo unc_display_errormsg("File details are invalid!");
return;
}
$details_filename = trim($tmp_arr[0]);
$details_description = trim($tmp_arr[1]);
$UNC_GALLERY['display']['details'][$details_filename] = $details_description;
}
}
// options
if (!isset($keywords['type'][$type])) {
echo unc_display_errormsg("You have an invalid type value in your tag." . "<br>Valid options are: " . implode(", ", $keywords['type']));
return false;
}
$possible_type_options = $keywords['type'][$type];
foreach ($UNC_GALLERY['display']['options'] as $option) {
if (!in_array($option, $possible_type_options)) {
echo unc_display_errormsg("You have an invalid option for the display type \"option\" in your tag." . "<br>Valid options are: " . implode(", ", $keywords['type'][$type]));
return false;
}
}
$UNC_GALLERY['display']['type'] = $a['type'];
// TODO: this is likely redundant
$UNC_GALLERY['display']['link'] = false;
if (in_array('link', $UNC_GALLERY['display']['options'])) {
$UNC_GALLERY['display']['link'] = 'image';
}
$UNC_GALLERY['display']['slideshow'] = false;
if (in_array('slideshow', $UNC_GALLERY['display']['options'])) {
$UNC_GALLERY['display']['slideshow'] = true;
}
// this is needed to the JS function calls used for the displays
$slug = '';
if (isset($post->post_name)) {
$slug = str_replace("-", "_", $post->post_name);
} else {
$slug = 'none';
}
// we list all the slugs to make sure we do not re-use
// practically we could just use incremental numbers, but debugging is easier with a name
if (isset($UNC_GALLERY['slugs']) && in_array($slug, $UNC_GALLERY['slugs'])) {
$slug = $slug . count($UNC_GALLERY['slugs']);
}
$UNC_GALLERY['slugs'][] = $slug;
$UNC_GALLERY['display']['slug'] = $slug;
return true;
}
/**
* standard wordpress function to activate the plugin.
* creates the uploads folder
*
* @global type $UNC_GALLERY
*/
function unc_gallery_plugin_activate()
{
global $UNC_GALLERY;
if ($UNC_GALLERY['debug']) {
XMPP_ERROR_trace(__FUNCTION__, func_get_args());
}
if (!file_exists($UNC_GALLERY['upload_path'])) {
$result = mkdir($UNC_GALLERY['upload_path'], 0755);
// check success
if (!$result) {
echo unc_display_errormsg("There was an error creating the upload folder {$UNC_GALLERY['upload_path']}!");
}
}
// create the DB structure
unc_mysql_db_create();
}
/**
* this will manage the settings
*/
function unc_gallery_admin_settings()
{
global $UNC_GALLERY;
if ($UNC_GALLERY['debug']) {
XMPP_ERROR_trace(__FUNCTION__, func_get_args());
}
remove_filter('the_content', 'wpautop');
echo '<div class="wrap">
<h2>Uncovery Gallery</h2>
<script type="text/javascript">
jQuery(document).ready(function() {
// Initialize jquery-ui tabs
jQuery(\'.unc_jquery_tabs\').tabs();
// Fade in sections that we wanted to pre-render
jQuery(\'.unc_fade_in\').fadeIn(\'fast\');
});
</script>';
if (!function_exists('exif_read_data')) {
echo unc_display_errormsg("EXIF Library does not exist! This plugin will not work properly! See <a href=\"http://php.net/manual/en/book.exif.php\">http://php.net/manual/en/book.exif.php</a>");
}
echo '<div class="unc_jquery_tabs unc_fade_in">
<ul>' . "\n";
# Set up tab titles
echo "<li><a href='#tab1'><span>Settings</span></a></li>\n" . "<li><a href='#tab2'><span>Upload</span></a></li>\n" . "<li><a href='#tab3'><span>Manage Images</span></a></li>\n" . "<li><a href='#tab4'><span>Maintenance</span></a></li>\n" . "<li><a href='#tab5'><span>Documentation</span></a></li>\n" . "</ul>\n";
echo "<div id='tab1'>\n";
echo '<form method="post" action="options.php">' . "\n";
settings_fields('unc_gallery_settings_page');
do_settings_sections('unc_gallery_settings_page');
submit_button();
echo "</form>\n";
echo "</div>\n";
echo "<div id='tab2'>\n";
echo unc_uploads_form();
echo "</div>\n";
echo "<div id='tab3'>\n";
echo unc_gallery_admin_display_images();
echo "</div>\n";
echo "<div id='tab4'>\n";
echo unc_gallery_admin_maintenance();
echo "</div>\n";
echo "<div id='tab5'>\n";
echo unc_gallery_admin_show_documentation();
echo "</div>\n";
echo "</div>";
}
function unc_filter_check_type($group, $key)
{
global $UNC_GALLERY;
if ($UNC_GALLERY['debug']) {
XMPP_ERROR_trace(__FUNCTION__, func_get_args());
}
// get the possible filter values from the codes
$codes = $UNC_GALLERY['codes'];
if (!isset($codes[$group])) {
$valid_filter_types_arr = array_keys($codes);
$valid_filter_types = implode(",", $valid_filter_types_arr);
return unc_display_errormsg("You have an invalid filter type set. Possible values are: {$valid_filter_types}");
}
$code_group = $codes[$group];
if (!isset($code_group[$key])) {
$valid_filter_keys_arr = array_keys($code_group);
$valid_filter_keys = implode(",", $valid_filter_keys_arr);
return unc_display_errormsg("You have an invalid filter key set. Possible values are: {$valid_filter_keys}");
}
return false;
}