friendica/mod/wall_upload.php

<?php

require_once('include/Photo.php');

function wall_upload_post(&$a, $desktopmode = true) {

	logger("wall upload: starting new upload", LOGGER_DEBUG);

	$r_json = (x($_GET,'response') && $_GET['response']=='json');

	if($a->argc > 1) {
		if(! x($_FILES,'media')) {
			$nick = $a->argv[1];
			$r = q("SELECT `user`.*, `contact`.`id` FROM `user` INNER JOIN `contact` on `user`.`uid` = `contact`.`uid`  WHERE `user`.`nickname` = '%s' AND `user`.`blocked` = 0 and `contact`.`self` = 1 LIMIT 1",
				dbesc($nick)
			);

			if(! count($r)){
				if ($r_json) {
				    echo json_encode(array('error'=>t('Invalid request.')));
				    killme();
				}
				return;
			}
		} else {
			$user_info = api_get_user($a);
			$r = q("SELECT `user`.*, `contact`.`id` FROM `user` INNER JOIN `contact` on `user`.`uid` = `contact`.`uid`  WHERE `user`.`nickname` = '%s' AND `user`.`blocked` = 0 and `contact`.`self` = 1 LIMIT 1",
				dbesc($user_info['screen_name'])
			);
		}
	} else {
		if ($r_json) {
		    echo json_encode(array('error'=>t('Invalid request.')));
		    killme();
		}
		return;
	}

	$can_post  = false;
	$visitor   = 0;

	$page_owner_uid   = $r[0]['uid'];
	$default_cid      = $r[0]['id'];
	$page_owner_nick  = $r[0]['nickname'];
	$community_page   = (($r[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);

	if((local_user()) && (local_user() == $page_owner_uid))
		$can_post = true;
	else {
		if($community_page && remote_user()) {
			$cid = 0;
			if(is_array($_SESSION['remote'])) {
				foreach($_SESSION['remote'] as $v) {
					if($v['uid'] == $page_owner_uid) {
						$cid = $v['cid'];
						break;
					}
				}
			}
			if($cid) {

				$r = q("SELECT `uid` FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
					intval($cid),
					intval($page_owner_uid)
				);
				if(dbm::is_result($r)) {
					$can_post = true;
					$visitor = $cid;
				}
			}
		}
	}


	if(! $can_post) {
		if ($r_json) {
		    echo json_encode(array('error'=>t('Permission denied.')));
		    killme();
		}
		notice( t('Permission denied.') . EOL );
		killme();
	}

	if(! x($_FILES,'userfile') && ! x($_FILES,'media')){
		if ($r_json) {
		    echo json_encode(array('error'=>t('Invalid request.')));
		}
		killme();
	}

	$src = "";
	if(x($_FILES,'userfile')) {
		$src      = $_FILES['userfile']['tmp_name'];
		$filename = basename($_FILES['userfile']['name']);
		$filesize = intval($_FILES['userfile']['size']);
		$filetype = $_FILES['userfile']['type'];
	}
	elseif(x($_FILES,'media')) {
		if (is_array($_FILES['media']['tmp_name']))
			$src = $_FILES['media']['tmp_name'][0];
		else
			$src = $_FILES['media']['tmp_name'];

		if (is_array($_FILES['media']['name']))
			$filename = basename($_FILES['media']['name'][0]);
		else
			$filename = basename($_FILES['media']['name']);

		if (is_array($_FILES['media']['size']))
			$filesize = intval($_FILES['media']['size'][0]);
		else
			$filesize = intval($_FILES['media']['size']);

		if (is_array($_FILES['media']['type']))
			$filetype = $_FILES['media']['type'][0];
		else
			$filetype = $_FILES['media']['type'];
	}

	if ($src=="") {
		if ($r_json) {
		    echo json_encode(array('error'=>t('Invalid request.')));
		    killme();
		}
		notice(t('Invalid request.').EOL);
		killme();
	}

	// This is a special treatment for picture upload from Twidere
	if (($filename == "octet-stream") AND ($filetype != "")) {
		$filename = $filetype;
		$filetype = "";
	}

	if ($filetype=="")
		$filetype=guess_image_type($filename);

	// If there is a temp name, then do a manual check
	// This is more reliable than the provided value

	$imagedata = getimagesize($src);
	if ($imagedata)
		$filetype = $imagedata['mime'];

	logger("File upload src: ".$src." - filename: ".$filename.
		" - size: ".$filesize." - type: ".$filetype, LOGGER_DEBUG);

	$maximagesize = get_config('system','maximagesize');

	if(($maximagesize) && ($filesize > $maximagesize)) {
		$msg = sprintf( t('Image exceeds size limit of %s'), formatBytes($maximagesize));
		if ($r_json) {
			echo json_encode(array('error'=>$msg));
		} else {
			echo  $msg. EOL;
		}
		@unlink($src);
		killme();
	}


	$limit = service_class_fetch($page_owner_uid,'photo_upload_limit');

	if ($limit) {
		$r = q("select sum(octet_length(data)) as total from photo where uid = %d and scale = 0 and album != 'Contact Photos' ",
			intval($page_owner_uid)
		);
		$size = $r[0]['total'];
	} else
		$size = 0;

	if(($limit !== false) && (($size + strlen($imagedata)) > $limit)) {
		$msg = upgrade_message(true);
		if ($r_json) {
			echo json_encode(array('error'=>$msg));
		} else {
			echo  $msg. EOL;
		}
		@unlink($src);
		killme();
	}


	$imagedata = @file_get_contents($src);
	$ph = new Photo($imagedata, $filetype);

	if(! $ph->is_valid()) {
		$msg = t('Unable to process image.');
		if ($r_json) {
			echo json_encode(array('error'=>$msg));
		} else {
			echo  $msg. EOL;
		}
		@unlink($src);
		killme();
	}

	$ph->orient($src);
	@unlink($src);

	$max_length = get_config('system','max_image_length');
	if(! $max_length)
		$max_length = MAX_IMAGE_LENGTH;
	if($max_length > 0) {
		$ph->scaleImage($max_length);
		logger("File upload: Scaling picture to new size ".$max_length, LOGGER_DEBUG);
	}

	$width = $ph->getWidth();
	$height = $ph->getHeight();

	$hash = photo_new_resource();

	$smallest = 0;

	$defperm = '<' . $default_cid . '>';

	$r = $ph->store($page_owner_uid, $visitor, $hash, $filename, t('Wall Photos'), 0, 0, $defperm);

	if(! $r) {
		$msg = t('Image upload failed.');
		if ($r_json) {
			echo json_encode(array('error'=>$msg));
		} else {
			echo  $msg. EOL;
		}
		killme();
	}

	if($width > 640 || $height > 640) {
		$ph->scaleImage(640);
		$r = $ph->store($page_owner_uid, $visitor, $hash, $filename, t('Wall Photos'), 1, 0, $defperm);
		if($r)
			$smallest = 1;
	}

	if($width > 320 || $height > 320) {
		$ph->scaleImage(320);
		$r = $ph->store($page_owner_uid, $visitor, $hash, $filename, t('Wall Photos'), 2, 0, $defperm);
		if($r AND ($smallest == 0))
			$smallest = 2;
	}

	$basename = basename($filename);

	if (!$desktopmode) {

		$r = q("SELECT `id`, `datasize`, `width`, `height`, `type` FROM `photo` WHERE `resource-id` = '%s' ORDER BY `width` DESC LIMIT 1", $hash);
		if (!$r){
			if ($r_json) {
			    echo json_encode(array('error'=>''));
			    killme();
			}
			return false;
		}
		$picture = array();

		$picture["id"] = $r[0]["id"];
		$picture["size"] = $r[0]["datasize"];
		$picture["width"] = $r[0]["width"];
		$picture["height"] = $r[0]["height"];
		$picture["type"] = $r[0]["type"];
		$picture["albumpage"] = $a->get_baseurl().'/photos/'.$page_owner_nick.'/image/'.$hash;
		$picture["picture"] = $a->get_baseurl()."/photo/{$hash}-0.".$ph->getExt();
		$picture["preview"] = $a->get_baseurl()."/photo/{$hash}-{$smallest}.".$ph->getExt();

		if ($r_json) {
		    echo json_encode(array('picture'=>$picture));
		    killme();
		}
		return $picture;
	}


	if ($r_json) {
	    echo json_encode(array('ok'=>true));
	    killme();
	}

/* mod Waitman Gobble NO WARRANTY */

//if we get the signal then return the image url info in BBCODE, otherwise this outputs the info and bails (for the ajax image uploader on wall post)
	if ($_REQUEST['hush']!='yeah') {
		if(local_user() && (! feature_enabled(local_user(),'richtext') || x($_REQUEST['nomce'])) ) {
			echo  "\n\n" . '[url=' . $a->get_baseurl() . '/photos/' . $page_owner_nick . '/image/' . $hash . '][img]' . $a->get_baseurl() . "/photo/{$hash}-{$smallest}.".$ph->getExt()."[/img][/url]\n\n";
		}
		else {
			echo  '<br /><br /><a href="' . $a->get_baseurl() . '/photos/' . $page_owner_nick . '/image/' . $hash . '" ><img src="' . $a->get_baseurl() . "/photo/{$hash}-{$smallest}.".$ph->getExt()."\" alt=\"$basename\" /></a><br /><br />";
		}
	}
	else {
		$m = '[url='.$a->get_baseurl().'/photos/'.$page_owner_nick.'/image/'.$hash.'][img]'.$a->get_baseurl()."/photo/{$hash}-{$smallest}.".$ph->getExt()."[/img][/url]";
		return($m);
	}
/* mod Waitman Gobble NO WARRANTY */

	killme();
	// NOTREACHED
}