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<?php
namespace Zotlabs\Module;

/* @file profile_photo.php
   @brief Module-file with functions for handling of profile-photos

*/


require_once('include/photo/photo_driver.php');
require_once('include/photos.php');
require_once('include/channel.php');

/* @brief Function for sync'ing  permissions of profile-photos and their profile
*
*  @param $profileid The id number of the profile to sync
*  @return void
*/


class Profile_photo extends \Zotlabs\Web\Controller {

	
	/* @brief Initalize the profile-photo edit view
	 *
	 * @return void
	 *
	 */
	
	function init() {
	
		if(! local_channel()) {
			return;
		}
	
		$channel = \App::get_channel();
		profile_load($channel['channel_address']);
	
	}
	
	/* @brief Evaluate posted values
	 *
	 * @param $a Current application
	 * @return void
	 *
	 */
	
	function post() {
	
		if(! local_channel()) {
			return;
		}
		
		check_form_security_token_redirectOnErr('/profile_photo', 'profile_photo');
	        
		if((array_key_exists('cropfinal',$_POST)) && (intval($_POST['cropfinal']) == 1)) {
	
			// phase 2 - we have finished cropping
	
			if(argc() != 2) {
				notice( t('Image uploaded but image cropping failed.') . EOL );
				return;
			}
	
			$image_id = argv(1);
	
			if(substr($image_id,-2,1) == '-') {
				$scale = substr($image_id,-1,1);
				$image_id = substr($image_id,0,-2);
			}


			// unless proven otherwise
			$is_default_profile = 1;
	
			if($_REQUEST['profile']) {
				$r = q("select id, profile_guid, is_default, gender from profile where id = %d and uid = %d limit 1",
					intval($_REQUEST['profile']),
					intval(local_channel())
				);
				if($r) {
					$profile = $r[0];
					if(! intval($profile['is_default']))
						$is_default_profile = 0;
				}
			} 

	
			$srcX = $_POST['xstart'];
			$srcY = $_POST['ystart'];
			$srcW = $_POST['xfinal'] - $srcX;
			$srcH = $_POST['yfinal'] - $srcY;

			$r = q("SELECT * FROM photo WHERE resource_id = '%s' AND uid = %d AND imgscale = %d LIMIT 1",
				dbesc($image_id),
				dbesc(local_channel()),
				intval($scale));
			if($r) {
	
				$base_image = $r[0];
				$base_image['content'] = (($r[0]['os_storage']) ? @file_get_contents($base_image['content']) : dbunescbin($base_image['content']));
			
				$im = photo_factory($base_image['content'], $base_image['mimetype']);
				if($im->is_valid()) {
	
					$im->cropImage(300,$srcX,$srcY,$srcW,$srcH);
	
					$aid = get_account_id();
	
					$p = [ 
						'aid'         => $aid, 
						'uid'         => local_channel(), 
						'resource_id' => $base_image['resource_id'],
						'filename'    => $base_image['filename'], 
						'album'       => t('Profile Photos')
					];
	
					$p['imgscale']    = PHOTO_RES_PROFILE_300;
					$p['photo_usage'] = (($is_default_profile) ? PHOTO_PROFILE : PHOTO_NORMAL);
	
					$r1 = $im->save($p);
	
					$im->scaleImage(80);
					$p['imgscale'] = PHOTO_RES_PROFILE_80;
	
					$r2 = $im->save($p);
				
					$im->scaleImage(48);
					$p['imgscale'] = PHOTO_RES_PROFILE_48;
	
					$r3 = $im->save($p);
				
					if($r1 === false || $r2 === false || $r3 === false) {
						// if one failed, delete them all so we can start over.
						notice( t('Image resize failed.') . EOL );
						$x = q("delete from photo where resource_id = '%s' and uid = %d and imgscale in ( %d, %d, %d ) ",
							dbesc($base_image['resource_id']),
							local_channel(),
							intval(PHOTO_RES_PROFILE_300),
							intval(PHOTO_RES_PROFILE_80),
							intval(PHOTO_RES_PROFILE_48)
						);
						return;
					}
	
					$channel = \App::get_channel();
	
					// If setting for the default profile, unset the profile photo flag from any other photos I own
	
					if($is_default_profile) {
						$r = q("UPDATE photo SET photo_usage = %d WHERE photo_usage = %d
							AND resource_id != '%s' AND `uid` = %d",
							intval(PHOTO_NORMAL),
							intval(PHOTO_PROFILE),
							dbesc($base_image['resource_id']),
							intval(local_channel())
						);
	
						send_profile_photo_activity($channel,$base_image,$profile);
	
					}
					else {
						$r = q("update profile set photo = '%s', thumb = '%s' where id = %d and uid = %d",
							dbesc(z_root() . '/photo/' . $base_image['resource_id'] . '-4'),
							dbesc(z_root() . '/photo/' . $base_image['resource_id'] . '-5'),
							intval($_REQUEST['profile']),
							intval(local_channel())
						);
					}
	
					profiles_build_sync(local_channel());
	
					// We'll set the updated profile-photo timestamp even if it isn't the default profile,
					// so that browsers will do a cache update unconditionally
	
	
					$r = q("UPDATE xchan set xchan_photo_mimetype = '%s', xchan_photo_date = '%s' 
						where xchan_hash = '%s'",
						dbesc($im->getType()),
						dbesc(datetime_convert()),
						dbesc($channel['xchan_hash'])
					);
					// Similarly, tell the nav bar to bypass the cache and update the avater image.
					$_SESSION['reload_avatar'] = true;
	
					info( t('Shift-reload the page or clear browser cache if the new photo does not display immediately.') . EOL);
	
					// Update directory in background
					\Zotlabs\Daemon\Master::Summon(array('Directory',$channel['channel_id']));
	
					// Now copy profile-permissions to pictures, to prevent privacyleaks by automatically created folder 'Profile Pictures'
	
					profile_photo_set_profile_perms(local_channel(),$_REQUEST['profile']);	
				}
				else
					notice( t('Unable to process image') . EOL);
			}
	
			goaway(z_root() . '/profiles');
			return; // NOTREACHED
		}
	
		// A new photo was uploaded. Store it and save some important details
		// in App::$data for use in the cropping function
 	
	
		$hash = photo_new_resource();
		$smallest = 0;
	
		require_once('include/attach.php');
	
		$res = attach_store(\App::get_channel(), get_observer_hash(), '', array('album' => t('Profile Photos'), 'hash' => $hash));
	
		logger('attach_store: ' . print_r($res,true));
	
		if($res && intval($res['data']['is_photo'])) {
			$i = q("select * from photo where resource_id = '%s' and uid = %d order by imgscale",
				dbesc($hash),
				intval(local_channel())
			);
	
			if(! $i) {
				notice( t('Image upload failed.') . EOL );
				return;
			}
			$os_storage = false;
	
			foreach($i as $ii) {
				if(intval($ii['imgscale']) < PHOTO_RES_640) {
					$smallest = intval($ii['imgscale']);
					$os_storage = intval($ii['os_storage']);
					$imagedata = $ii['content'];
					$filetype = $ii['mimetype'];
				}
			}
		}
	
		$imagedata = (($os_storage) ? @file_get_contents($imagedata) : $imagedata);
		$ph = photo_factory($imagedata, $filetype);
	
		if(! $ph->is_valid()) {
			notice( t('Unable to process image.') . EOL );
			return;
		}
	
		return $this->profile_photo_crop_ui_head($a, $ph, $hash, $smallest);

		// This will "fall through" to the get() method, and since
		// App::$data['imagecrop'] is set, it will proceed to cropping 
		// rather than present the upload form		
	}
	
	
	/* @brief Generate content of profile-photo view
	 *
	 * @param $a Current application
	 * @return void
	 *
	 */
	
	
	function get() {
	
		if(! local_channel()) {
			notice( t('Permission denied.') . EOL );
			return;
		}
	
		$channel = \App::get_channel();
	
		$newuser = false;
	
		if(argc() == 2 && argv(1) === 'new')
			$newuser = true;
	
		if(argv(1) === 'use') {
			if (argc() < 3) {
				notice( t('Permission denied.') . EOL );
				return;
			};
				        
			$resource_id = argv(2);
	
			// When using an existing photo, we don't have a dialogue to offer a choice of profiles,
			// so it gets attached to the default

			$p = q("select id from profile where is_default = 1 and uid = %d",
				intval(local_channel())
			);
			if($p) {
				$_REQUEST['profile'] = $p[0]['id'];
			}

	
			$r = q("SELECT id, album, imgscale FROM photo WHERE uid = %d AND resource_id = '%s' ORDER BY imgscale ASC",
				intval(local_channel()),
				dbesc($resource_id)
			);
			if(! $r) {
				notice( t('Photo not available.') . EOL );
				return;
			}
			$havescale = false;
			foreach($r as $rr) {
				if($rr['imgscale'] == PHOTO_RES_PROFILE_80)
					$havescale = true;
			}
	
			// set an already loaded and cropped photo as profile photo
	
			if(($r[0]['album'] == t('Profile Photos')) && ($havescale)) {
				// unset any existing profile photos
				$r = q("UPDATE photo SET photo_usage = %d WHERE photo_usage = %d AND uid = %d",
					intval(PHOTO_NORMAL),
					intval(PHOTO_PROFILE),
					intval(local_channel()));
	
				$r = q("UPDATE photo SET photo_usage = %d WHERE uid = %d AND resource_id = '%s'",
					intval(PHOTO_PROFILE),
					intval(local_channel()),
					dbesc($resource_id)
					);
	
				$r = q("UPDATE xchan set xchan_photo_date = '%s' 
					where xchan_hash = '%s'",
					dbesc(datetime_convert()),
					dbesc($channel['xchan_hash'])
				);
	
				profile_photo_set_profile_perms(local_channel()); // Reset default photo permissions to public
				\Zotlabs\Daemon\Master::Summon(array('Directory',local_channel()));
				goaway(z_root() . '/profiles');
			}
	
			$r = q("SELECT content, mimetype, resource_id, os_storage FROM photo WHERE id = %d and uid = %d limit 1",
				intval($r[0]['id']),
				intval(local_channel())
	
			);
			if(! $r) {
				notice( t('Photo not available.') . EOL );
				return;
			}
	
			if(intval($r[0]['os_storage']))
				$data = @file_get_contents($r[0]['content']);
			else
				$data = dbunescbin($r[0]['content']); 
	
			$ph = photo_factory($data, $r[0]['mimetype']);
			$smallest = 0;
			if($ph->is_valid()) {
				// go ahead as if we have just uploaded a new photo to crop
				$i = q("select resource_id, imgscale from photo where resource_id = '%s' and uid = %d order by imgscale",
					dbesc($r[0]['resource_id']),
					intval(local_channel())
				);
	
				if($i) {
					$hash = $i[0]['resource_id'];
					foreach($i as $ii) {
						if(intval($ii['imgscale']) < PHOTO_RES_640) {
							$smallest = intval($ii['imgscale']);
						}
					}
	            }
	        }
	 
			$this->profile_photo_crop_ui_head($a, $ph, $hash, $smallest);

			// falls through with App::$data['imagecrop'] set so we go straight to the cropping section
		}
	

		// present an upload form

		$profiles = q("select id, profile_name as name, is_default from profile where uid = %d order by id asc",
			intval(local_channel())
		);
	
		if(! x(\App::$data,'imagecrop')) {
	
			$tpl = get_markup_template('profile_photo.tpl');
	
			$o .= replace_macros($tpl,array(
				'$user' => \App::$channel['channel_address'],
				'$lbl_upfile' => t('Upload File:'),
				'$lbl_profiles' => t('Select a profile:'),
				'$title' => t('Upload Profile Photo'),
				'$submit' => t('Upload'),
				'$profiles' => $profiles,
				'$single' => ((count($profiles) == 1) ? true : false),
				'$profile0' => $profiles[0],
				'$form_security_token' => get_form_security_token("profile_photo"),
	// FIXME - yuk  
				'$select' => sprintf('%s %s', t('or'), ($newuser) ? '<a href="' . z_root() . '">' . t('skip this step') . '</a>' : '<a href="'. z_root() . '/photos/' . \App::$channel['channel_address'] . '">' . t('select a photo from your photo albums') . '</a>')
			));
			
			call_hooks('profile_photo_content_end', $o);
			
			return $o;
		}
		else {

			// present a cropping form

			$filename = \App::$data['imagecrop'] . '-' . \App::$data['imagecrop_resolution'];
			$resolution = \App::$data['imagecrop_resolution'];
			$tpl = get_markup_template("cropbody.tpl");
			$o .= replace_macros($tpl,array(
				'$filename' => $filename,
				'$profile' => intval($_REQUEST['profile']),
				'$resource' => \App::$data['imagecrop'] . '-' . \App::$data['imagecrop_resolution'],
				'$image_url' => z_root() . '/photo/' . $filename,
				'$title' => t('Crop Image'),
				'$desc' => t('Please adjust the image cropping for optimum viewing.'),
				'$form_security_token' => get_form_security_token("profile_photo"),
				'$done' => t('Done Editing')
			));
			return $o;
		}
	
		return; // NOTREACHED
	}
	
	/* @brief Generate the UI for photo-cropping
	 *
	 * @param $a Current application
	 * @param $ph Photo-Factory
	 * @return void
	 *
	 */
	
	
	
	function profile_photo_crop_ui_head(&$a, $ph, $hash, $smallest){
	
		$max_length = get_config('system','max_image_length');
		if(! $max_length)
			$max_length = MAX_IMAGE_LENGTH;
		if($max_length > 0)
			$ph->scaleImage($max_length);
	
		\App::$data['width']  = $ph->getWidth();
		\App::$data['height'] = $ph->getHeight();
	
		if(\App::$data['width'] < 500 || \App::$data['height'] < 500) {
			$ph->scaleImageUp(400);
			\App::$data['width']  = $ph->getWidth();
			\App::$data['height'] = $ph->getHeight();
		}
	
	
		\App::$data['imagecrop'] = $hash;
		\App::$data['imagecrop_resolution'] = $smallest;
		\App::$page['htmlhead'] .= replace_macros(get_markup_template("crophead.tpl"), array());
		return;
	}
	
	
}