PHP Classes

File: html5slideshow.php

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File: html5slideshow.php
Role: Example script
Content type: text/plain
Description: Command line app witch generates selfcontainig html slideshow
Class: Data URI
Generate data URL to embed binaries in links
Author: By
Last change: Fixed: same mime type for all files
Date: 8 years ago
Size: 14,503 bytes
 

Contents

Class file image Download
#! /usr/bin/php
<?php

/*
 $ /Users/kasutaja/Sites/ukjlib/class.data_uri/html5slideshow.php -i/Volumes/UKJ1G/images/ -s"/Volumes/UKJ1G/sounds" -t"My photoshoot"
 
 
 */
$pathToScriptDir = pathinfo( __FILE__,PATHINFO_DIRNAME ).DIRECTORY_SEPARATOR;
$scriptFilename = pathinfo(__FILE__,PATHINFO_BASENAME );

$path_to_magic_file = is_file($pathToScriptDir.'magic') ? $pathToScriptDir.'magic' : NULL;
$template_title_default = 'Photoshoot';
$template_title_placeholder = '<slideshowtitle_4njk3 />';
$template_slideshow_placeholder = '<div id="slideshow_4njk3">';
$default_template = $pathToScriptDir . 'html5slideshow-template.htm';
$message_audio_error = "Your browser does not support the audio tag.";

require $pathToScriptDir . 'class.data_uri.php';



$jpegraw = $jpeg_file = $jpeg_directory = $jpegduc = 
$mp3raw =  $mp3file = $mp3dir = $mp3duc = 
$default_template_data = $slideshow_title = '';
$jpeg_files = $default_template_data_a = array();
$image_files_written = $audio_files_written = 0;

/**
 * http://code.google.com/p/tylerhall/source/browse/trunk/class.args.php
 */
 class Args
 {
        private $flags;
        public $args;

        public function __construct()
        {
            $this->flags = array();
            $this->args  = array();

            $argv = $GLOBALS['argv'];
            array_shift($argv);

            for($i = 0; $i < count($argv); $i++)
            {
                $str = $argv[$i];

                // --foo
                if(strlen($str) > 2 && substr($str, 0, 2) == '--')
                {
                                        $str = substr($str, 2);
                    $parts = explode('=', $str);
                    $this->flags[$parts[0]] = true;

                    // Does not have an =, so choose the next arg as its value
                    if(count($parts) == 1 && isset($argv[$i + 1]) && preg_match('/^--?.+/', $argv[$i + 1]) == 0)
                    {
                        $this->flags[$parts[0]] = $argv[$i + 1];
                    }
                    elseif(count($parts) == 2) // Has a =, so pick the second piece
                    {
                        $this->flags[$parts[0]] = $parts[1];
                    }
                }
                elseif(strlen($str) == 2 && $str[0] == '-') // -a
                {
                    $this->flags[$str[1]] = true;
                    if(isset($argv[$i + 1]) && preg_match('/^--?.+/', $argv[$i + 1]) == 0)
                        $this->flags[$str[1]] = $argv[$i + 1];
                }
                elseif(strlen($str) > 1 && $str[0] == '-') // -abcdef
                {
                    for($j = 1; $j < strlen($str); $j++)
                        $this->flags[$str[$j]] = true;
                }
            }

            for($i = count($argv) - 1; $i >= 0; $i--)
            {
                if(preg_match('/^--?.+/', $argv[$i]) == 0)
                    $this->args[] = $argv[$i];
                else
                    break;
            }

            $this->args = array_reverse($this->args);
        }

        public function flag($name)
        {
            return array_key_exists($name, $this->flags) ? $this->flags[$name] : false;
        }

        /**
         * Returns first matching value of given flags.
         * Usage:
         * $help_basic = "\n-h Help \n -v Program verson \n -f Input \n -o Output \n -b Verbose mode \n\n";
         * $args = new Args();
         * if( $args->flags('h','H','?','help','HELP') ) { exit( $help_basic ); }
         * 
         * @author http://ukj.pri.ee http://www.hot.ee/u/ukjoesaar
         * @return mixed
         */
        public function flags()
        {
            foreach(func_get_args() as $name){
                if( array_key_exists($name, $this->flags) ) return $this->flags[$name];
            }
            return false;
        }
        
 }
 $args = new Args();
 

 
function text_columns($columns=array(),$left_margin=4) {
    if(!is_array($columns)) return "\n\n";
    $margin = str_repeat(' ', $left_margin);
    $result = '';
    $col1_w = 28;
    $col2_w = 40;
    $col1_merge = $col2_merge = array();
    
    foreach($columns as $row) 
    {
             $len1 = strlen($row[0]);  
             $len2 = strlen($row[1]);
            
             $col1_a = explode("\n", $margin.str_replace("<ln/>",  "\n".$margin, wordwrap($row[0] ,$col1_w,"<ln/>",TRUE) ));
             $col1_ac = count($col1_a);
             
             $col2_a = explode("\n", $margin.str_replace("<ln/>", "\n".$margin, wordwrap($row[1] ,$col2_w,"<ln/>",FALSE) ));
             $col2_ac = count($col2_a);
             
             if($col1_ac > $col2_ac) {
                 $col12_a = &$col1_a;
                 $col22_a = array_pad($col2_a, $col1_ac, ' ');
             }
             if($col1_ac < $col2_ac) {
                $col12_a = array_pad($col1_a, $col2_ac, str_repeat(' ', $left_margin+$col1_w));
                $col22_a = &$col2_a;
                                  
             }
             if($col1_ac == $col2_ac);{
                $col12_a = &$col1_a; 
                $col22_a = &$col2_a;
             }
             
             
             $col1_merge = array_merge($col1_merge, $col12_a);
             $col2_merge = array_merge($col2_merge, $col22_a);
     }
     $col_rowc = count($col1_merge);
     $col12_alla=array(); foreach($col1_merge as $col12_all) $col12_alla[] = strlen($col12_all);$col12_amll = max($col12_alla);
     
     //print_r($col1_merge); print_r($col2_merge);     
     
     
     for($i=0;$i<$col_rowc;$i++) {
         $result .= str_pad($col1_merge[$i], $col12_amll) . $col2_merge[$i]  . "\n";
     } 
    
    return $result;
}
$scriptFilename_len = strlen($scriptFilename) + 3;
$scriptFilename_LLL = str_repeat('-', $scriptFilename_len);
$scriptFilename_SSS = str_repeat(' ', $scriptFilename_len);

$help_basic = "\n"
    ."html5slideshow.php   |  Creates slideshow with audio background. \n"
    .$scriptFilename_LLL ."+  Usability of result depends heavily how borwser \n"
    .$scriptFilename_SSS ."   supports data uri and html5 audio. \n\n";
    
    $help_a = array(
    array('-h -H -?<ln/>--help --HELP', 'Help'),
    array('-i <path_to_dir><ln/>--image-dir <path_to_dir>', 'Add images'),
    array('-s <path_to_file><ln/>--sound-file <path_to_file>','Add audio. Sound file or directory. Same sound in different formats(ogg/mp3/mp4/aac).'),
    array('-t "tile"<ln/>-title "tile"','Write short description.')
    );
     
$mp3mimes = array(
    'ogg'=>'audio/ogg','oga'=>'audio/ogg',
    'mp3'=>'audio/mpeg','mp4'=>'audio/mp4','m4a'=>'audio/mp4','aac'=>'audio/aac',
    'webma'=>'audio/webm','webm'=>'video/webm','
    wav'=>'audio/wav',
    'fla'=>'audio/fla');



$data_uri_o = new data_uri;
$data_uri_o->set_magic_file($path_to_magic_file);


/**
 * Compiles data: uri
 * 
 * @param string $contents
 * @param string $mime
 * @param int $encoding 1:base64, 0:rawurlencode
 * @param string $charset '' or 'auto' or charset
 * @return string;
 */
function data_uri_(&$contents, $mime, $encoding=1, $charset='' ) 
{    
    if($encoding==1) {
        $data = base64_encode($contents);
        $enc = ';base64';
    } 
    elseif($encoding==0) {
        $data = rawurlencode($contents);
        $enc = '';
    }
   
    // charset for textual data    
    if($charset=='auto') {
        if(
            is_int(strpos($mime,'text')) or 
            is_int(strpos($mime,'xml')) or 
            is_int(strpos($mime,'script')) or 
            is_int(strpos($mime,'php'))
          )
            if($charset = mb_detect_encoding($contents)) $charset = ';charset=' . $charset; else ;
        else $charset = '';
       
    } 
    elseif($charset!='') {
        $charset = ';charset=' . $charset;
    }
    else $charset = '';    
        
    return 'data:' . $mime . $charset . $enc . ','. $data;
}
    


/**
 * Returns human readfirendly filesize unsing b kb Mb Gb Tb Pb Eb
 *
 * @param mixed $bytes If not numeric, trys handle as filename
 * @param int $decimals
 * @return string
 */
function filesize_h($bytes, $decimals = 3) {

    if( !is_numeric($bytes) ) {
        clearstatcache();
        $bytes = filesize($filename);
    }
    $bytes = (float)$bytes;

    $units = array(
      '1152921504606846976' => 'Eb', /* Exa Byte  10^18 */
      '1125899906842624'    => 'Pb', /* Peta Byte 10^15 */
      '1099511627776'       => 'Tb',
      '1073741824'          => 'Gb',
      '1048576'             => 'Mb',
      '1024'                => 'Kb'
    );

    if($bytes <= 1024)
      return $bytes . ' b';
    $decimals = ($decimals < 1)?1: ($decimals>10)?10: $decimals;

    foreach($units as $base => $title)
      if(floor($bytes / $base) != 0)
    return number_format($bytes / $base, (int) $decimals, '.', "'") . ' ' . $title;
} // end filesize_h()

function exit_error_cant_read($file) { exit("Error: Can't read file \"".$file."\" !\n"); }


if(!defined('SCANDIR_SORT_ASCENDING'))define('SCANDIR_SORT_ASCENDING',0);
if(!defined('SCANDIR_SORT_DESCENDING'))define('SCANDIR_SORT_DESCENDING',1);
if(!defined('SCANDIR_SORT_NONE'))define('SCANDIR_SORT_NONE',2);

    /**
 * Result with no .dotfiles & no tildefiles~
 * 
 * @param string $directory
 * @param int $sort 0 SCANDIR_SORT_ASCENDING | 1 SCANDIR_SORT_DESCENDING | 2 SCANDIR_SORT_NONE
 * @param array $exclude filenames to exclude
 * @author ukj@ukj.pri.ee
 * @return array filenemes
 */
function scandir_nd($directory,$sorting_order=SCANDIR_SORT_ASCENDING, $exclude=array() )
{
  $files=array();
  if($a = scandir($directory)) {
	  foreach($a as $filename) {
		  if( ($filename[0] != '.') && (substr($filename, -1, 1 ) != '~')) {
			  if( !in_array($filename, $exclude) ) $files[] = $filename;
		  }
	  }
	switch( $sort!=1?0:1 )
	{
		case 0:sort($files,SORT_STRING);break;
		case 1:rsort($files,SORT_STRING);break;
	}
	  return $files;
  }
  return FALSE;
}
  




// argv

if( $args->flags('h','H','?','help','HELP') ) { exit( $help_basic . $help_basic .= text_columns($help_a, 4)  ); }



if( is_string( $jpeg_directory = $args->flags('i','image-dir') ) ) {
	
    if(is_dir($jpeg_directory) && is_readable($jpeg_directory) ) 
        ;
        else { exit_error_cant_read($jpeg_directory); }

}


if( is_string( $mp3file = $args->flags('s','sound-file') ) ) {
	
    if(is_file($mp3file) && is_readable($mp3file) ) 
        ;
	
    elseif(is_dir($mp3file) && is_readable($mp3file) ) {
        $mp3dir =  $mp3file; $mp3file  = '';
    }
    else { exit_error_cant_read($mp3file); }
}

if( is_string( $slideshow_title = $args->flags('t','title') ) ) {	
	
    if($slideshow_title = trim($slideshow_title) ) 
        ; 
    else $slideshow_title = $template_title_default;
	
} else $slideshow_title = $template_title_default;


$jpeg_directory = rtrim($jpeg_directory,DIRECTORY_SEPARATOR) .DIRECTORY_SEPARATOR;
$jpeg_Dirname=end(explode('/', trim($jpeg_directory,DIRECTORY_SEPARATOR) ));

if($jpeg_Dirname != '')
    $outhtmlfilename = $jpeg_Dirname.'.html';



// READING THE TEMPLATE IN
if(is_file($default_template) && is_readable($default_template) ) {
	$default_template_data = file_get_contents($default_template);
	if(is_string($default_template_data)) {
		$default_template_data_a = explode($template_slideshow_placeholder, $default_template_data);
		$default_template_data = '';
	} else {
		exit_error_cant_read($default_template);
	}
} else exit_error_cant_read($default_template);








if($jpeg_directory != '' && count($default_template_data_a)==2) {
	
    // WRITE <TITLE />
	$default_template_data_a[0] = str_replace($template_title_placeholder,$slideshow_title,$default_template_data_a[0]);
	file_put_contents($outhtmlfilename, $default_template_data_a[0]);
	$default_template_data_a[0] = '';
	
	
	// WRITE <AUDIO />
	if($mp3file != '') {
	    
    	$extension = trim( pathinfo(strtolower($mp3_file), PATHINFO_EXTENSION));
    	file_put_contents($outhtmlfilename, "\n\n<audio autobuffer autoplay loop >\n".
    	// "<source src=\"" . $mp3file . "\" type=\"" . $data_uri_o->get_mime() . "\" />\n"
    	"<source src=\"" . $data_uri_o->fromFile($mp3file) . "\" type=\"".$data_uri_o->get_mime()."\" /> \n".
        "$message_audio_error\n</audio>\n\n", FILE_APPEND );
    	$audio_files_written++;
	
	} elseif($mp3dir != '') {
	    
	   $mp3dir = rtrim($mp3dir,DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
	   file_put_contents($outhtmlfilename, "\n<audio autobuffer autoplay loop >\n", FILE_APPEND );
	   $mp3dir_files = scandir_nd($mp3dir);
	   //count($mp3_files);
	   
	   foreach($mp3dir_files as $mp3_file) {
	        
	        $data_uri_o->file_mime_type($mp3dir.$mp3_file);
	        $mimeclass = $data_uri_o->get_mime_class();
            $subtype = $data_uri_o->get_mime_subtype();
	        //$extension = trim( pathinfo(strtolower($mp3_file), PATHINFO_EXTENSION));
	       
	       if($mimeclass == 'audio' || $mimeclass=='video') {
	           $data_uri_o->set_mime_type('');
	           file_put_contents($outhtmlfilename,
	           //"<source src=\"".$mp3dir.$mp3_file."\" type=\"".$mp3mimes[$extension]."\" />\n".
	           "<source src=\"" . $data_uri_o->fromFile($mp3dir.$mp3_file ,'audio/'.$subtype ) . "\" alt=\"" . $mp3_file . "\" type=\"".'audio/'.$subtype . "\" /> \n", FILE_APPEND );
	           $datauri='';
	           $audio_files_written++;
	           
	       }
	   }
	   file_put_contents($outhtmlfilename, "\n$message_audio_error</audio>\n\n", FILE_APPEND );
	}
    
	
	
	
	// <IMG />
	file_put_contents($outhtmlfilename, $template_slideshow_placeholder."\n\n", FILE_APPEND );

	//,$sorting_order=SCANDIR_SORT_ASCENDING , $exclude=array()
	$jpeg_files = scandir_nd($jpeg_directory);
	$image_files_written = 0;
	if(is_array($jpeg_files)) {
	    
		foreach($jpeg_files as $jpeg_file) {
			if(in_array(trim( pathinfo(strtolower($jpeg_file), PATHINFO_EXTENSION) ),array('jpg','jpeg'))) {
			    $data_uri_o->set_mime_type('');
				file_put_contents($outhtmlfilename,"<img src=\"" . $data_uri_o->fromFile($jpeg_directory.$jpeg_file) . "\" alt=\"" . $jpeg_file . "\" /> \n", FILE_APPEND );
				$jpegraw = $jpegduc = '';
				$image_files_written++;
				echo ".";
			}
		}
	}
	
	
	// FINALIZE
	file_put_contents($outhtmlfilename, $default_template_data_a[1], FILE_APPEND );
	
	
	// REPORT
	echo 
	   "\n".
	   "Slideshow title: $slideshow_title \n".
	   "$audio_files_written audio file. \n".
	   "$image_files_written image file. \n".
	   filesize_h(filesize($outhtmlfilename), 2) . 
	   " written in to \"$outhtmlfilename\" \n".
	   "\n";
}

  
?>

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