2020-09-14 20:22:46 +00:00
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<?php
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/**
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* Debug output to the browser console
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*/
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function console_log( $data ) {
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echo "<script>";
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echo "console.log(". json_encode( $data ) . ")";
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2020-10-08 06:04:46 +00:00
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echo "</script>";
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2020-09-14 20:22:46 +00:00
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}
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/**
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* List the subdirectories of a folder.
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* Ignore ones marked hidden.
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*/
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function listFolders( $root, $hidden=false) {
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$list = array();
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if( !is_dir( $root ) ) {
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throw new Exception("'".$root."' is not a folder!");
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}
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$root_content = scandir( $root );
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/**
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* Catch no permission, or empty folder
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*/
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if( empty( $root_content) ) {
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return $list;
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}
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foreach ( $root_content as $subdir ) {
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if ( ($subdir[0] != "." || $hidden ) && is_dir( $path = $root."/".$subdir) ) {
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$list[] = $path;
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}
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}
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return $list;
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}
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/**
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* List all files in the folder.
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* Ignores hidden files.
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*/
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function listFiles( $root, $cascade=false, $first=false ) {
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$list = array();
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if( !is_dir( $root ) ) {
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throw new Exception("'".$root."' is not a folder.");
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}
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$files = scandir( $root );
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/**
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* Catch no permission, or empty folder
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*/
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if ( empty( $files ) ) {
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return $list;
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}
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foreach ( $files as $file ) {
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if( $file[0] != "." ) {
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if ( is_file( $path = $root."/".$file ) ) {
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if ( $first ) {
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return $path;
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}
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$list[] = $path;
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} else {
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if($cascade) {
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$list = array_merge( $list, listFiles( $root . "/" . $file, true));
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}
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}
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}
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}
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if($first) {
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return $list[0];
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}
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return $list;
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}
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/**
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* Discount strip_slashes - from a file name
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*/
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function tidyName( $name ) {
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if ( strpos( $name, "/" ) > -1 ) {
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return substr( $name, strrpos( $name, "/" ) + 1);
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} else {
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return $name;
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}
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}
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/**
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* Check directory structure for integrity
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*/
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function isPathValid( $file, $path ) {
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$realFile = realpath( $file );
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$realDir = realpath( $path );
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/**
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* If the two paths match, then the path is valid
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*/
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if ( $realFile == $realDir ) {
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return true;
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}
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/**
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* If the file path starts with the dir path,
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* then the file path is valid
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*/
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if ( substr( $realFile, 0, strlen( $realDir ) ) == $realDir ) {
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return true;
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}
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/**
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* Otherwise, the file is not in the path, and it is invalid.
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*/
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return false;
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}
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/**
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* Set up headers and send a http reply with the given file.
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*/
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function sendFile( $image ) {
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// Expires in 2 weeks
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$expires = 60*60*24*14;
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$lastModified = filemtime( $image );
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//$etag = md5_file( $image );
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2020-10-08 06:04:46 +00:00
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ob_clean();
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2020-09-14 20:22:46 +00:00
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header("Last-Modified: $lastModified GMT");
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header("Pragma: public");
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header("Cache-Control: max-age=$expires");
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//header("Etag: $etag");
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header("Expires: " . gmdate('D, d M Y H:i:s', time() + $expires) . " GMT");
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2020-10-08 06:04:46 +00:00
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header("Content-type: image/png");
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2020-09-14 20:22:46 +00:00
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2020-10-08 06:04:46 +00:00
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if(!readfile( $image )) {
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console_log("Problem with file $image!");
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}
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2020-09-14 20:22:46 +00:00
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}
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/**
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* Check that a file is in a given folder.
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*/
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function isInFolder( $file, $folder ) {
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return substr( $folder, 0, strlen( $file ) ) == $file;
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}
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/**
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* Convert an absolute path (for filesystem) to a relative path (for web server)
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*/
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function absoluteToRelative( $file, $folder ) {
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$realFile = realpath( $file );
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$realDir = realpath( $folder );
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if ($realFile == $realDir ) return "";
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if ( !isInFolder( $realDir, $realFile ) ) {
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throw new Exception("File is not in the photos folder.");
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}
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return substr( $realFile, strlen( $realDir ) + 1);
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}
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/**
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* Convert a relative path (from the file server) to an absolute path (for the filesystem)
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*/
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function relativeToAbsolute( $file, $folder ) {
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return $folder . "/" . $file;
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}
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/**
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* Get all of the steps needed to get to where we are, from the home page
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*/
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function breadcrumbs( $path ) {
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$list = array();
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$slash = strpos( $path, "/");
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while($slash > 0) {
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$list[] = substr( $path, 0, $slash );
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$path = substr( $path, $slash + 1 );
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$slash = strpos( $path, "/" );
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}
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if( $path != "" ) {
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$list[] = $path;
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}
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return $list;
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}
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/**
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* Create a smaller copy of the image to serve as a thumbnail.
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*/
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function createThumbnail( $source, $thumbnailPath, $thumbnailFolder ) {
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require_once("resources/libs/php/ThumbLib.inc.php");
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if ( !file_exists( $thumbnailPath ) || filectime( $source ) > filectime( $thumbnailPath ) ) {
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if ( !file_exists( dirname( $thumbnailPath ) ) ) {
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@mkdir( dirname( $thumbnailPath ) );
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}
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$thumbnail = PhpThumbFactory::create( $source );
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$thumbnail->resize( 200, 200 );
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$thumbnail->save( $thumbnailPath );
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$newFile = fopen( $thumbnailFolder . "/newImages.txt", "a+" );
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fwrite( $newFile, realpath( $source ) . "\n");
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$file = file( $thumbnailFolder . "/newImages.txt" );
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$file = array_slice( $file, 0, 20 );
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file_put_contents( $thumbnailFolder . "/newImages.txt", implode( "", $file ) );
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}
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}
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