<?php
/*
	FusionPBX
	Version: MPL 1.1

	The contents of this file are subject to the Mozilla Public License Version
	1.1 (the "License"); you may not use this file except in compliance with
	the License. You may obtain a copy of the License at
	http://www.mozilla.org/MPL/

	Software distributed under the License is distributed on an "AS IS" basis,
	WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
	for the specific language governing rights and limitations under the
	License.

	The Original Code is FusionPBX

	The Initial Developer of the Original Code is
	Mark J Crane <markjcrane@fusionpbx.com>
	Portions created by the Initial Developer are Copyright (C) 2008-2024
	the Initial Developer. All Rights Reserved.

	Contributor(s):
	Mark J Crane <markjcrane@fusionpbx.com>
	Luis Daniel Lucio Quiroz <dlucio@okay.com.mx>
*/

//includes files
	require_once dirname(__DIR__, 2) . "/resources/require.php";
	require_once "resources/check_auth.php";

//check permissions
	if (!permission_exists('contact_attachment_edit') && !permission_exists('contact_attachment_add')) {
		echo "access denied"; exit;
	}

//add multi-lingual support
	$language = new text;
	$text = $language->get();

//action add or update
	$contact_attachment_uuid = $_REQUEST['id'] ?? '';
	$contact_uuid = $_REQUEST['contact_uuid'] ?? '';

	if (!empty($contact_attachment_uuid) && !empty($contact_uuid) && is_uuid($contact_attachment_uuid) && is_uuid($contact_uuid)) {
		$action = 'update';
	}
	else if (!empty($contact_uuid) && is_uuid($contact_uuid)) {
		$action = 'add';
	}
	else {
		exit;
	}

//get http post variables and set them to php variables
	if (!empty($_POST)) {

		//set the variables
		$attachment = $_FILES['attachment'];
		$attachment_primary = $_POST['attachment_primary'];
		$attachment_description = $_POST['attachment_description'];

		//validate the token
		$token = new token;
		if (!$token->validate($_SERVER['PHP_SELF'])) {
			message::add($text['message-invalid_token'],'negative');
			header('Location: contacts.php');
			exit;
		}

		//get the attachment type
		if (empty($attachment) || sizeof($attachment) == 0) {
			$attachment_type = strtolower(pathinfo($_POST['attachment_filename'], PATHINFO_EXTENSION));
		}
		else {
			$attachment_type = strtolower(pathinfo($attachment['name'], PATHINFO_EXTENSION));
		}

		//unflag others as primary
		$allowed_primary_attachment = false;
		if ($attachment_primary && ($attachment_type == 'jpg' || $attachment_type == 'jpeg' || $attachment_type == 'gif' || $attachment_type == 'png')) {
			$sql = "update v_contact_attachments set attachment_primary = 0 ";
			$sql .= "where domain_uuid = :domain_uuid ";
			$sql .= "and contact_uuid = :contact_uuid ";
			$parameters['domain_uuid'] = $domain_uuid;
			$parameters['contact_uuid'] = $contact_uuid;
			$database = new database;
			$database->execute($sql, $parameters ?? null);
			unset($sql, $parameters);

			$allowed_primary_attachment = true;
		}

		//get the allowed extensions
		$allowed_extensions = array_keys(json_decode($_SESSION['contact']['allowed_attachment_types']['text'], true));

		//get the attachment extension
		$attachment_extension = strtolower(pathinfo($attachment['name'], PATHINFO_EXTENSION));

		//check the allowed extensions
		if ($attachment['error'] == '0' && in_array($attachment_extension, $allowed_extensions)) {
			//get the attachment content
			$attachment_content = file_get_contents($attachment['tmp_name']);

			//list of image extensions
			$image_extensions = array('png','jpg','jpeg','gif','bmp', 'webp');

			//read the image from the string then output the image without meta data
			if (in_array($attachment_extension, $image_extensions)) {
				//create the image object from the content string
				$image = imagecreatefromstring($attachment_content);

				//start output buffering to capture the image data
				ob_start();

				//output the image without the EXIF data
				imagepng($image);

				//get the image from the buffer
				$attachment_content = ob_get_contents();

				//end the buffering
				ob_end_clean();

				//free up the memory
				imagedestroy($image);
			}
		}

		//prepare the array
		$array['contact_attachments'][0]['contact_attachment_uuid'] = $action == 'update' ? $contact_attachment_uuid : uuid();
		$array['contact_attachments'][0]['domain_uuid'] = $_SESSION['domain_uuid'] ?? '';
		$array['contact_attachments'][0]['contact_uuid'] = $contact_uuid;
		$array['contact_attachments'][0]['attachment_primary'] = $allowed_primary_attachment ? 1 : 0;
		if ($attachment['error'] == '0' && in_array(strtolower(pathinfo($attachment['name'], PATHINFO_EXTENSION)), $allowed_extensions)) {
			$array['contact_attachments'][0]['attachment_filename'] = $attachment['name'];
			$array['contact_attachments'][0]['attachment_content'] = base64_encode($attachment_content);
		}
		$array['contact_attachments'][0]['attachment_description'] = $attachment_description;
		if ($action == 'add') {
			$array['contact_attachments'][0]['attachment_uploaded_date'] = 'now()';
			$array['contact_attachments'][0]['attachment_uploaded_user_uuid'] = $_SESSION['user_uuid'];
		}

		//save data
		$database = new database;
		$database->app_name = 'contacts';
		$database->app_uuid = '04481e0e-a478-c559-adad-52bd4174574c';
		$database->save($array);
		unset($array);

		//redirect
		message::add($text['message-'.($action == 'update' ? 'update' : 'uploaded')]);
		header('Location: contact_edit.php?id='.$contact_uuid);
		exit;
	}

//get form data
	if (!empty($_GET)) {
		$sql = "select * from v_contact_attachments ";
		$sql .= "where domain_uuid = :domain_uuid ";
		$sql .= "and contact_attachment_uuid = :contact_attachment_uuid ";
		$parameters['domain_uuid'] = $domain_uuid;
		$parameters['contact_attachment_uuid'] = $contact_attachment_uuid;
		$database = new database;
		$row = $database->select($sql, $parameters, 'row');
		if (!empty($row)) {
			$attachment_primary = $row["attachment_primary"];
			$attachment_filename = $row["attachment_filename"];
			$attachment_content = $row["attachment_content"];
			$attachment_description = $row["attachment_description"];
		}
		unset($sql, $parameters, $row);
	}

//create token
	$object = new token;
	$token = $object->create($_SERVER['PHP_SELF']);

//show the header
	if ($action == "update") {
		$document['title'] = $text['title-contact_attachment-edit'];
	}
	else if ($action == "add") {
		$document['title'] = $text['title-contact_attachment-add'];
	}
	require_once "resources/header.php";

//show the content
	echo "<form method='post' name='frm' id='frm' enctype='multipart/form-data'>\n";

	echo "<div class='action_bar' id='action_bar'>\n";
	echo "	<div class='heading'>";
	if ($action == "update") {
		echo "<b>".$text['header-contact_attachment-edit']."</b>";
	}
	else if ($action == "add") {
		echo "<b>".$text['header-contact_attachment-add']."</b>";
	}
	echo "	</div>\n";
	echo "	<div class='actions'>\n";
	echo button::create(['type'=>'button','label'=>$text['button-back'],'icon'=>$_SESSION['theme']['button_icon_back'],'id'=>'btn_back','style'=>'margin-right: 15px;','link'=>'contact_edit.php?id='.urlencode($contact_uuid)]);
	echo button::create(['type'=>'submit','label'=>$text['button-save'],'icon'=>$_SESSION['theme']['button_icon_save'],'id'=>'btn_save']);
	echo "	</div>\n";
	echo "	<div style='clear: both;'></div>\n";
	echo "</div>\n";

	echo "<div class='card'>\n";
	echo "<table width='100%'  border='0' cellpadding='0' cellspacing='0'>\n";

	echo "<tr>\n";
	echo "<td width='30%' class='vncell' valign='top' align='left' nowrap='nowrap'>\n";
	echo "	".$text['label-attachment']."\n";
	echo "</td>\n";
	echo "<td width='70%' class='vtable' align='left'>\n";
	$attachment_type = strtolower(pathinfo($attachment_filename ?? '', PATHINFO_EXTENSION));
	if ($action == 'update') {
		echo "<input type='hidden' name='attachment_filename' value=\"".escape($attachment_filename)."\">\n";
		if ($attachment_type == 'jpg' || $attachment_type == 'jpeg' || $attachment_type == 'gif' || $attachment_type == 'png') {
			echo "<img src='data:image/".$attachment_type.";base64,".$attachment_content."' style='border: none; width: auto; max-height: 400px;' oncontextmenu=\"window.open('contact_attachment.php?id=".$contact_attachment_uuid."&action=download'); return false;\">";
		}
		else {
			echo "<a href='contact_attachment.php?id=".$contact_attachment_uuid."&action=download' style='font-size: 120%;'>".$attachment_filename."</a>";
		}
	}
	else {
		$allowed_attachment_types = json_decode($_SESSION['contact']['allowed_attachment_types']['text'], true);
		echo "	<input type='file' class='formfld' name='attachment' id='attachment' accept='.".implode(',.',array_keys($allowed_attachment_types))."'>\n";
		echo "	<span style='display: inline-block; margin-top: 5px; font-size: 80%;'>".strtoupper(implode(', ', array_keys($allowed_attachment_types)))."</span>";
	}
	echo "</td>\n";
	echo "</tr>\n";

	if ($action == 'update' && ($attachment_type == 'jpg' || $attachment_type == 'jpeg' || $attachment_type == 'gif' || $attachment_type == 'png')) {
		echo "<tr>\n";
		echo "<td class='vncell' valign='top' align='left' nowrap='nowrap'>\n";
		echo "	".$text['label-attachment_filename']."\n";
		echo "</td>\n";
		echo "<td class='vtable' align='left'>\n";
		echo "	<a href='contact_attachment.php?id=".$contact_attachment_uuid."&action=download' style='font-size: 120%;'>".$attachment_filename."</a>";
		echo "</td>\n";
		echo "</tr>\n";
	}

	echo "<tr>\n";
	echo "<td class='vncell' valign='top' align='left' nowrap='nowrap'>\n";
	echo "	".$text['label-primary']."\n";
	echo "</td>\n";
	echo "<td class='vtable' align='left'>\n";
	echo "	<select class='formfld' name='attachment_primary' id='attachment_primary'>\n";
	echo "		<option value='0'>".$text['option-false']."</option>\n";
	echo "		<option value='1' ".(!empty($attachment_primary) && $attachment_primary ? "selected" : null).">".$text['option-true']."</option>\n";
	echo "	</select>\n";
	echo "</td>\n";
	echo "</tr>\n";

	echo "<tr>\n";
	echo "<td class='vncell' valign='top' align='left' nowrap='nowrap'>\n";
	echo "	".$text['label-attachment_description']."\n";
	echo "</td>\n";
	echo "<td class='vtable' align='left'>\n";
	echo "	<input class='formfld' type='text' name='attachment_description' maxlength='255' value=\"".escape($attachment_description ?? '')."\">\n";
	echo "</td>\n";
	echo "</tr>\n";

	echo "</table>";
	echo "</div>\n";
	echo "<br><br>";

	echo "<input type='hidden' name='contact_uuid' value='".escape($contact_uuid)."'>\n";
	if ($action == "update") {
		echo "<input type='hidden' name='contact_attachment_uuid' value='".escape($contact_attachment_uuid)."'>\n";
	}
	echo "<input type='hidden' name='".$token['name']."' value='".$token['hash']."'>\n";

	echo "</form>";

//include the footer
	require_once "resources/footer.php";

?>