285 lines
12 KiB
PHP
285 lines
12 KiB
PHP
<?php
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/*
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MIT License
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Copyright (c) the AVsitter Contributors (http://avsitter.github.io)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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header("Content-Type: text/plain; charset=utf-8");
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error_reporting(E_ERROR | E_WARNING | E_PARSE);
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ini_set('display_errors', '1');
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$dbhost = 'localhost'; // database host
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$dbuser = '?'; // database user
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$dbpass = '?'; // database password
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$dbname = '?'; // database name
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$avpos_table='avpos';
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$email_to="you@yourmail.com"; // your email (for error reporting)
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$email_from="you@yourhost.com"; // your server's sending email (for error reporting)
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$allow_install = false; // enable to allow action=install (clear/format database)
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$check_ip = false; // enable to check the sim ip submitting the data is in the allowed range
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$link = mysqli_connect($dbhost, $dbuser, $dbpass, $dbname) or die("Error " . mysqli_error($link));
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if (mysqli_connect_errno()) {
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die ("Connect failed: " . mysqli_connect_error());
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}
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if($_REQUEST['action']=="install" && $allow_install==true){
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$sql = "DROP TABLE IF EXISTS $avpos_table;";
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$result = mysqli_query($link,$sql) or die("Error creating table: ".mysqli_error($link));
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$sql = "CREATE TABLE IF NOT EXISTS $avpos_table (
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`id` int(11) NOT NULL auto_increment,
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`webkey` varchar(36) default NULL,
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`owner_uuid` varchar(36) default NULL,
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`owner_name` varchar(63) default NULL,
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`text` TEXT default NULL,
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`keep` tinyint(1) default 0,
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`count` int(5) default NULL,
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`ip` varbinary(16) defult NULL,
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`timestamp` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
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PRIMARY KEY (`id`),
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UNIQUE (`webkey`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1;";
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$result = mysqli_query($link,$sql) or die("Error formatting table: ".mysqli_error($link));
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if($result) {
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echo "Your tables have been formatted!";
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}
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else{
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echo "Oops! There were some problems. You should check your config and try again: ".mysqli_error($link);
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}
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}
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else if(isset($_REQUEST['w'])){ // write to a record
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$given_webkey = mysqli_real_escape_string($link, $_REQUEST['w']);
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$ip_address = $_SERVER['REMOTE_ADDR'];
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$ip_packed = mysqli_real_escape_string($link, inet_pton($ip_address));
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if(!isValidGuid($given_webkey)){
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echo "INVALID WEBKEY";
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}
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else{
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$headers = parse_llHTTPRequest_headers();
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$owner_key = mysqli_real_escape_string($link, $headers['X-SecondLife-Owner-Key']);
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$object_name = mysqli_real_escape_string($link, $headers['X-SecondLife-Object-Name']);
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$owner_name = mysqli_real_escape_string($link, $headers['X-SecondLife-Owner-Name']);
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$object_key = mysqli_real_escape_string($link, $headers['X-SecondLife-Object-Key']);
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$region = mysqli_real_escape_string($link, trim(substr($headers['X-SecondLife-Region'],0,strrpos($headers['X-SecondLife-Region'],'('))));
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$position_array = explode(', ',substr($_SERVER['HTTP_X_SECONDLIFE_LOCAL_POSITION'],1,-1));
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$slurl = $region . "/" . round($position_array[0]) . "/" . round($position_array[1]) . "/" . round($position_array[2]);
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if(!isValidGuid($owner_key)){
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echo "INVALID USER";
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}
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else{
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$given_count = intval($_REQUEST['c']);
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$given_text = mysqli_real_escape_string($link, $_REQUEST['t']);
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$sql = "SELECT * FROM $avpos_table WHERE webkey = '$given_webkey'";
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$result = mysqli_query($link,$sql) or email_death("ERR01: " . mysqli_error($link));
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if(mysqli_num_rows($result) == 0){ // a new webkey
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if($given_count == 1){
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if(!isAllowedIP($ip_address)){
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$response = "BAD IP";
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$sql = "INSERT INTO $avpos_table (owner_uuid,owner_name,webkey,text,count,ip,timestamp)
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VALUES ('$owner_key','$owner_name','$given_webkey','The IP address of the sim ($ip_address) was not in the allowed range. Please report the problem if you think this is in error.','10001','$ip_packed',NOW())";
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}
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else{
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$response = "ADDED NEW";
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if(endsWith($_REQUEST['t'],"\n\nend")){
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$given_count+=10000;
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$response = "FINISHING";
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}
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$sql = "INSERT INTO $avpos_table (owner_uuid,owner_name,webkey,text,count,ip,timestamp)
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VALUES ('$owner_key','$owner_name','$given_webkey','$given_text','$given_count','$ip_packed',NOW())";
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}
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$result = mysqli_query($link,$sql) or email_death("ERR02: " . mysqli_error($link));
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}
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else{
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$response = "WRONG COUNT";
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}
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}
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else{ // an existing webkey
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if(!isAllowedIP($ip_address)){
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$response = "BAD IP";
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}
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else{
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$row = mysqli_fetch_assoc($result);
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$newtext = mysqli_real_escape_string($link,$row['text']) . $given_text;
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if($row['count']+1 == $given_count){
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$response = "ADDING";
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if(endsWith($_REQUEST['t'],"\n\nend")){
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$given_count+=10000;
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$response = "FINISHING";
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}
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$sql = "UPDATE $avpos_table SET
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text = '$newtext',
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count = '$given_count',
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timestamp = NOW()
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WHERE webkey = '$given_webkey'";
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$result = mysqli_query($link,$sql) or email_death("ERR03: " . mysqli_error($link));
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}
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else{
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$response = "WRONG COUNT";
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}
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}
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}
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echo $response;
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}
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}
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}
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else if(isset($_REQUEST['q'])){ // read a record
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$given_webkey = mysqli_real_escape_string($link, $_REQUEST['q']);
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$sql = "SELECT * FROM $avpos_table WHERE webkey = '$given_webkey'";
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$result = mysqli_query($link,$sql) or email_death("ERR04: " . mysqli_error($link));
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if(mysqli_num_rows($result) == 0){
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$out= "Not found. Expired links are deleted.";
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}
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else{
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$row = mysqli_fetch_assoc($result);
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if($row['count']>10000){
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$out.= $row['text'];
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if(1==2){ // switch on to 'keep' any record that ever was accessed
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$sql = "UPDATE $avpos_table SET
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keep = '1'
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WHERE webkey = '$given_webkey'";
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$result = mysqli_query($link,$sql) or email_death("ERR05: " . mysqli_error($link));
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}
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// delete all entries older than 10 minutes that are not flagged keep
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$sql = "DELETE FROM $avpos_table WHERE timestamp < DATE_SUB(NOW(), INTERVAL 10 MINUTE) AND keep = '0'";
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$result = mysqli_query($link,$sql) or email_death("ERR06: " . mysqli_error($link));
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}
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else{
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$out.="Data was incomplete, please try again.\n\nThis feature is new and experimental - you're welcome to report any issues.";
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}
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}
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echo $out;
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}
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function parse_llHTTPRequest_headers(){
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$position_array = explode(', ',substr($_SERVER['HTTP_X_SECONDLIFE_LOCAL_POSITION'],1,-1));
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$rotation_array = explode(', ',substr($_SERVER['HTTP_X_SECONDLIFE_LOCAL_ROTATION'],1,-1));
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$velocity_array = explode(', ',substr($_SERVER['HTTP_X_SECONDLIFE_LOCAL_VELOCITY'],1,-1));
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list($global_x,$global_y) = explode(',',trim(substr($_SERVER['HTTP_X_SECONDLIFE_REGION'],$position_of_left_bracket + 1,-1)));
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$region_array = array($region_name,(integer)$global_x,(integer)$global_y);
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$headers = array('Accept'=>$_SERVER['HTTP_ACCEPT'],
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'User-Agent'=>$_SERVER['HTTP_USER_AGENT'],
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'X-SecondLife-Shard'=>$_SERVER['HTTP_X_SECONDLIFE_SHARD'],
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'X-SecondLife-Object-Name'=>$_SERVER['HTTP_X_SECONDLIFE_OBJECT_NAME'],
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'X-SecondLife-Object-Key'=>$_SERVER['HTTP_X_SECONDLIFE_OBJECT_KEY'],
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'X-SecondLife-Region'=>$_SERVER['HTTP_X_SECONDLIFE_REGION'],
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'X-SecondLife-Region-Array'=> $region_array,
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'X-SecondLife-Local-Position'=>array( 'x'=>(float)$position_array[0],'y'=>(float)$position_array[1],'z'=>(float)$position_array[2]),
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'X-SecondLife-Local-Rotation'=>array( 'x'=>(float)$rotation_array[0],'y'=>(float)$rotation_array[1],'z'=>(float)$rotation_array[2],'w'=>(float)$rotation_array[3]),
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'X-SecondLife-Local-Velocity'=>array( 'x'=>(float)$velocity_array[0],'y'=>(float)$velocity_array[1],'z'=>(float)$velocity_array[2]),
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'X-SecondLife-Owner-Name'=>$_SERVER['HTTP_X_SECONDLIFE_OWNER_NAME'],
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'X-SecondLife-Owner-Key'=>$_SERVER['HTTP_X_SECONDLIFE_OWNER_KEY']
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);
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if(!strstr($headers['X-SecondLife-Owner-Name'],' ') && $_POST['X-SecondLife-Owner-Name']){
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$headers['X-SecondLife-Owner-Name'] == $_POST['X-SecondLife-Owner-Name'];
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}
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if(is_array($headers)){
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return $headers;
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}
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else{
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return FALSE;
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}
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}
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function isValidGuid($guid){
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return !empty($guid) && preg_match('/^\{?[a-zA-Z0-9]{8}-[a-zA-Z0-9]{4}-[a-zA-Z0-9]{4}-[a-zA-Z0-9]{4}-[a-zA-Z0-9]{12}\}?$/', $guid);
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}
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function email_death($error){
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$body.="\n";
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$body.="\n\$_SERVER\n";
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foreach($_SERVER as $key_name => $key_value) {
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$body.= $key_name . " = " . $key_value . "\n";
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}
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$body.="\n\$_GET\n";
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foreach($_GET as $key_name => $key_value) {
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$body.= $key_name . " = " . $key_value . "\n";
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}
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$body.="\n\$_POST\n";
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foreach($_POST as $key_name => $key_value) {
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$body.= $key_name . " = " . $key_value . "\n";
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}
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$to = $GLOBALS['email_to'];
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$subject = "avsitter: $error";
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$email_headers = "From: ". $GLOBALS['email_from'] ."\r\n" . "X-Mailer: php";
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mail($to, $subject, $body, $email_headers);
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die($error);
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}
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function startsWith($haystack, $needle) {
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// search backwards starting from haystack length characters from the end
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return $needle === "" || strrpos($haystack, $needle, -strlen($haystack)) !== FALSE;
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}
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function endsWith($haystack, $needle) {
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// search forward starting from end minus needle length characters
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return $needle === "" || (($temp = strlen($haystack) - strlen($needle)) >= 0 && strpos($haystack, $needle, $temp) !== FALSE);
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}
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function isAllowedIP($ip){
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if($GLOBALS['check_ip']==false){
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return true;
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}
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$llsubnets = array(
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"8.2.32.0/22",
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"8.4.128.0/22",
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"8.10.144.0/21",
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"63.210.156.0/22",
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"64.154.220.0/22",
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"216.82.0.0/18"
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);
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foreach($llsubnets as $range){
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if(ip_in_range($ip,$range)) return true;
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}
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return false;
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}
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// check if an ip_address in a particular range
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function ip_in_range( $ip, $range ) {
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// $range is in IP/CIDR format eg 127.0.0.1/24
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list( $range, $netmask ) = explode( '/', $range, 2 );
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$range_decimal = ip2long( $range );
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$ip_decimal = ip2long( $ip );
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$wildcard_decimal = pow( 2, ( 32 - $netmask ) ) - 1;
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$netmask_decimal = ~ $wildcard_decimal;
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return ( ( $ip_decimal & $netmask_decimal ) == ( $range_decimal & $netmask_decimal ) );
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}
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?>
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