<?php
/*
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2007 Bharat Mediratta
 *
 * 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 Street - Fifth Floor, Boston, MA  02110-1301, USA.
 */

/**
 * This plugin will handle the addition of embedded video objects
 * @package embedVideo
 * @subpackage UserInterface
 * @author Alan Pippin <apippin@pippins.net>
 * @version $Revision: 1.1 $
 */
class ItemAddEmbedVideo extends ItemAddPlugin {
  
  /**
   * @see ItemAddPlugin::handleRequest
   */
  function handleRequest($form, &$item) {
    global $gallery;
    
    $status = $error = array();
    
    if (isset($form['action']['addEmbedVideoPage'])) {
      
      $platform =& $gallery->getPlatform();
      
      if(isset($form['webPage']['URL'])) {

	$url = $form['webPage']['URL'];

	// Load any stored/set Parameters
	list ($ret, $params) =
	  GalleryCoreApi::fetchAllPluginParameters('module', 'embedvideo');
	if ($ret) {
	  return array($ret, null, null);
	}
	foreach (array('default', 'override') as $type) {
	  $ItemAddUploadApplet[$type] = array();
	  if (!empty($params['embedvideo' . $type . 'Variables'])) {
	    $variablesArray = explode('|', $params['embedvideo' . $type . 'Variables']);
	    foreach ($variablesArray as $variable) {
	      list ($name, $value) = explode('=', $variable);
	      $ItemAddEmbedVideo[$type][$name] = $value;
	    }
	  }
	}
	
	// Store any Parameters into some simpler, shorter, local variables
	$debug=0;
	$use_internal_flv_player = $ItemAddEmbedVideo['default']['useInternalFlvPlayer'];
	$youtube_dev_id = $ItemAddEmbedVideo['default']['youtubeDevId'];
	$width=$ItemAddEmbedVideo['default']['width'];
	$height=$ItemAddEmbedVideo['default']['height'];
	$external_flv_player = $ItemAddEmbedVideo['default']['externalFlvPlayer'];
	$external_flv_player_vars = $ItemAddEmbedVideo['default']['externalFlvPlayerVars'];

	///////////////////////////////
	// Embed a Youtube Video
	///////////////////////////////
	if(preg_match("/www.youtube.com/",$url)) {

	  if(preg_match("/watch\?v=(.*)/",$url,$matches)) {
	    $video_id = $matches[1];
	  } else {
	    return array(GalleryCoreApi::error(ERROR_BAD_PARAMETER,__FILE__,__LINE__,
					       "Unable to extract video id from url: $url"),null,null);
	  }
	  
	  // Youtube Developer ID
	  $dev_id = $youtube_dev_id;
	  if(!preg_match("/\w+/",$dev_id)) {
	    return array(GalleryCoreApi::error(ERROR_CONFIGURATION_REQUIRED,__FILE__,__LINE__,
					       "Invalid/missing YouTube developer ID: $dev_id"),null,null);
	  }
	  
	  // Youtube api feed
	  $feed = "http://www.youtube.com/api2_rest?method=youtube.videos.get_details&dev_id=$dev_id&video_id=$video_id";
	  
	  //get the feed as a string data source
	  $xml = get_feed($feed);	

	  preg_match_all("/\<title\>(.+?)\<\/title\>/smi",$xml, $title);
	  preg_match_all("/\<description\>(.+?)\<\/description\>/smi",$xml, $description);
	  preg_match_all("/\<thumbnail_url\>(.+?)\<\/thumbnail_url\>/smi",$xml, $thumbnail);
	  
	  array_shift($title);
	  array_shift($thumbnail);
	  array_shift($description);
	  
	  // Replace html characters. More can be added but this seems to work for me across the board. 
	  for($i=0;$i<count($description[0]);$i++){	  
	    $description[0][$i] = preg_replace("/&#60;/","<",$description[0][$i]);
	    $description[0][$i] = html_entity_decode($description[0][$i],ENT_QUOTES);	  
	  }
	  
	  $title = $title[0][0];
	  $summary = $description[0][0];
	  $thumbnail = $thumbnail[0][0];
	  
	  $description = '<object width="'.$width.'" height="'.$height.'">';
	  $description.= '<param name="movie" value="http://www.youtube.com/v/'.$video_id.'"></param>';
	  $description.= '<param name="wmode" value="transparent"></param>';
	  $description.= '<embed src="http://www.youtube.com/v/'.$video_id.'" ';
	  $description.= 'type="application/x-shockwave-flash" wmode="transparent" ';
	  $description.= 'width="'.$width.'" height="'.$height.'"></embed></object>';
	  $description.= "<br>$summary";
	}
	   
	   
	///////////////////////////////////
	// Embed a Google Video
	///////////////////////////////////
	else if(preg_match("/video.google.com/",$url)) {
	     
	  if(preg_match("/docid=(.*)/",$url,$matches)) {
	    $doc_id = $matches[1];
	  } else {
	    return array(GalleryCoreApi::error(ERROR_BAD_PARAMETER,__FILE__,__LINE__,
					       "Unable to extract doc id from url: $url"),null,null);
	  }
	  
	  $link="$url";
	  $contents=file_get_contents($link);
	  preg_match('/<meta content="(.+?)\. \w+ \d+, \d+.*" name="description">/i', $contents, $matches);
	  $summary=$matches[1];
	  preg_match('/<title>(.+?)\s+- Google Video<\/title>/i', $contents, $matches);
	  $title=$matches[1];
	  preg_match('/<img src="(http:\/\/video\.google\.com\/ThumbnailServer2.+?)" /i', $contents, $matches);
	  $thumbnail=$matches[1];
	  $thumbnail=preg_replace("/offsetms=0/","offsetms=0",$thumbnail);
	  
	  $description = '<embed FlashVars="autoPlay=true" ';
	  $description.= 'style="width:'.$width.'px; height:'.$height.'px;" id="VideoPlayback" ';
	  $description.= 'type="application/x-shockwave-flash" ';
	  $description.= 'src="http://video.google.com/googleplayer.swf?docId='.$doc_id.'"> ';
	  $description.= '</embed>';
	  $description.= "<br>$summary";
	 
	}

	///////////////////////////
	// Embed a remote .flv file
       	///////////////////////////
	else if(preg_match("/.*\/(.+?)\.flv/i",$url,$matches)) {
	  $title = $matches[1];
	  $summary = $matches[1];
	  $thumbnail = 'http://www.pippins.net/images/flv_thumb.jpg';

	  if (empty($extraHeaders)) {
	    $extraHeaders = array('Referer' => str_replace('&amp;', '&', $url));
	  }

	  list ($successfullyCopied, $response, $headers) =
	    GalleryCoreApi::fetchWebPage($url, $extraHeaders);
	  if (!$successfullyCopied) {
	    return array(GalleryCoreApi::error(ERROR_BAD_PATH,__FILE__,__LINE__,
					       "Unable to locate a video at url: $url"),null,null);
	  }
	  
	  // External FLV player
	  if(!$use_internal_flv_player) {

	    if(!preg_match("/\w+/",$external_flv_player)) {
	      return array(GalleryCoreApi::error(ERROR_CONFIGURATION_REQUIRED,__FILE__,__LINE__,
					       "Invalid/missing external player parameter"),null,null);
	    }
	    
	    $description ='<embed src="'.$external_flv_player.'" ';
	    $description.= 'width="'.$width.'" height="'.$height.'" bgcolor="#C0C0C0" allowfullscreen="true" ';
	    $description.= 'type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" ';
	    $description.= 'flashvars="file='.$url.'&fullscreenpage='.$thumbnail.'&linktarget=_Blank&image='.$thumbnail;

	    if(!preg_match("/\w+/",$external_flv_player_vars)) {
	      $description.= '&showdigits=true&autostart=false&showfsbutton=true&';
	      $description.= '&repeat=false&lightcolor=0x9999FF&backcolor=0x888888&frontcolor=0x000000"';
	    } else {
	      $description.= '&'.$external_flv_player_vars;
	    }
	    $description.=  ' />&nbsp;</p>';
	  }
	  
	  // Internal FLV player
	  else { 
	    $description = '<script type="text/javascript">'."\n";
	    $description.= '// <![CDATA['."\n";
	    $description.= 'function divResize(id, nw, nh) {'."\n";
	    $description.= 'var obj = document.getElementById(id);'."\n";
	    $description.= 'obj.style.width = nw + "px";'."\n";
	    $description.= 'obj.style.height = nh + "px";'."\n";
	    $description.= '}'."\n";
	    $description.= '// ]]>'."\n";
	    $description.= '</script>'."\n";
	    $description.= '<div id="flashvideo" style="align:left;width:525px;height:392px">'."\n";
	    $description.= '<object classid="clsid:D27CDB6E-AE6D-11CF-96B8-444553540000"';
	    $description.= 'codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0"';
	    $description.= 'width="100%" height="100%" id="IFid1" class="ImageFrame_image">';
	    $description.= '<param name="movie" value="http://www.pippins.net/gallery2/modules/flashvideo/lib/G2flv.swf"/>';
	    $description.= '<param name="FlashVars" value="flvUrl='.$url.'&Width='.$width.'&Height='.$height.'&title='.$title;
	    $description.= '&allowDl=true&thumbUrl='.$thumbnail.'&langDownload=Download&langLarge=Large&langNormal=Normal"/>';
	    $description.= '<param name="quality" value="high"/>';
	    $description.= '<param name="scale" value="noscale"/>';
	    $description.= '<param name="salign" value="lt"/>';
	    $description.= '<param name="wmode" value="transparent"/>';
	    $description.= '<param name="allowScriptAccess" value="always"/>';
	    $description.= '<embed src="http://www.pippins.net/gallery2/modules/flashvideo/lib/G2flv.swf" flashvars="flvUrl='.$url;
	    $description.= '&Width='.$width.'&Height='.$height.'&title='.$title.'&allowDl=true&thumbUrl='.$thumbnail;
	    $description.= '&langDownload=Download&langLarge=Large&langNormal=Normal" type="application/x-shockwave-flash" ';
	    $description.= 'width="100%" height="100%" quality="high" scale="noscale" salign="lt" ';
	    $description.= 'wmode="transparent" allowScriptAccess="always" ';
	    $description.= 'pluginspage="http://www.macromedia.com/go/getflashplayer"/>';
	    $description.= '</object></div>';
	  }
	}
	
       	////////////////////////////
	// Unsupported URL to embed
       	////////////////////////////
	else {
	  return array(GalleryCoreApi::error(ERROR_UNSUPPORTED_FILE_TYPE,__FILE__,__LINE__,
					       "Unable to embed video from: $url"),null,null);
	}

	
	////////////////////////////
	// Add the video to Gallery
       	////////////////////////////
	
	// Get a local tmp file to save the thumbnail to
	$tmpDir = $gallery->getConfig('data.gallery.tmp');
	$tmpFile = $platform->tempnam($tmpDir, 'add');
	$tmpFile.= ".jpg";

	if($debug) {
	  print "thumbnail: $thumbnail <br>";
	}
	
	// Fetch the thumbnail and save it to a local file
	if (empty($extraHeaders)) {
	  $extraHeaders = array('Referer' => str_replace('&amp;', '&', $url));
	}

	list ($successfullyCopied, $response, $headers) =
	  GalleryCoreApi::fetchWebFile($thumbnail, $tmpFile, $extraHeaders);
	if (!$successfullyCopied) {
	  return array(GalleryCoreApi::error(ERROR_STORAGE_FAILURE,__FILE__,__LINE__,
					       "Unable to copy thumbnail from url: $url"),null,null);
	}

	// Obtain the mimeType of the thumbnail
	list ($ret, $mimeType) = GalleryCoreApi::getMimeType($tmpFile);

	// Set the filename for the item we want to add
	$fileName = $title;
	$fileName = preg_replace("/\s+/","_",$fileName);
	$fileName = preg_replace("/'/","",$fileName);
	$fileName = preg_replace("/\"/","",$fileName);
	$fileName = preg_replace("/&#\d+;/","",$fileName);
	
	// DEBUG OUTPUT
	if($debug) {
	  print "<p><a href=\"".$title."\" target=\"_blank\">\n<img src=\"".$thumbnail."\">\n</a>".$summary."</p>";
	  print "<p>$description</p>";
	  print "thumbnail: $tmpFile <br>";
	  print "mimeType: $mimeType <br>";
	  print "fileName: $fileName <br>";
	}
	
	list ($ret, $newItem) = GalleryCoreApi::addItemToAlbum($tmpFile,
							       $fileName,
							       $title,
							       $summary,
							       $description,
							       $mimeType,
							       $item->getId());
	
	if ($ret) {
	  return array($ret, null, null);
	}
	
	$status['addedFiles'][] = array('fileName' => $url,
					'id' => $newItem->getId(),
					'warnings' => array());
      }
      @$platform->unlink($tmpFile);
    }
    
    return array(null, $error, $status);
  }

/**
 * @see ItemAdd:loadTemplate
 */
function loadTemplate(&$template, &$form, $item) {
  global $gallery;
  
  if ($form['formName'] != 'ItemAddEmbedVideo') {
    /* First time around, load the form with item data */
    $form['webPage'] = '';
    $form['formName'] = 'ItemAddEmbedVideo';
  }
      
  $session =& $gallery->getSession();
  
  $template->setVariable('ItemAddEmbedVideo', $ItemAddEmbedVideo);
  
  return array(null,
	       'modules/embedvideo/templates/ItemAddEmbedVideo.tpl',
	       'modules_embedvideo');
}

/**
 * @see ItemAddPlugin::getTitle
 */
 function getTitle() {
   list ($ret, $module) = GalleryCoreApi::loadPlugin('module', 'embedvideo');
   if ($ret) {
     return array($ret, null);
   }
   
   return array(null, $module->translate('Embed Video'));
 }
}


function get_feed($feed){
  
  //Open and return Feed with cURL for parsing
  $ch = curl_init();
  $timeout = 0;
  curl_setopt ($ch, CURLOPT_URL, $feed);
  curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
  $xml = curl_exec($ch);
  curl_close($ch);
  
  return $xml;
  
}
	
?>