210 lines
8.3 KiB
PHP
210 lines
8.3 KiB
PHP
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<?php
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# request.php > request_confirm.php > upload.php > upload_confirm.php
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require "/home/hpr/php/include.php";
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$ip = $_SERVER["REMOTE_ADDR"];
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$key = uniqid(md5(rand()));
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# Remove any stale requests.
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# This should be enough to deter attackers while been short enough to allow real hosts to request a show.
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$query_delete_old = "DELETE FROM reservations WHERE reservations.timestamp + INTERVAL 1 DAY <= UTC_TIMESTAMP() AND reservations.verified = 0";
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$result_delete_old = @mysqli_query($connection, $query_delete_old);
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# Remove stale requests from this IP Address after 15 minutes.
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# This should be enough to deter attackers while been short enough to allow real hosts to request a show.
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$query_delete = "DELETE FROM reservations WHERE reservations.ip = '$ip' AND reservations.timestamp + INTERVAL 15 MINUTE <= UTC_TIMESTAMP() AND reservations.verified = 0";
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$result_delete = @mysqli_query($connection, $query_delete);
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# Check that this ip is not uploading in another session
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$query_dupe = "SELECT COUNT(*), timestamp FROM `reservations` WHERE ip = '$ip' and verified = 0";
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$result_dupe = mysqli_query($connection, "$query_dupe");
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$row_dupe = mysqli_fetch_array($result_dupe, MYSQLI_NUM);
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$num_from_this_ip = $row_dupe[0];
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$show_timestamp = strtotime($row_dupe[1]);
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if( !isset($row_dupe) or $num_from_this_ip != 0 ) {
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header('Cache-Control: no-cache');
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header('Pragma: no-cache');
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header("Status: 412 Precondition Failed");
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echo "<h1>Existing request detected: ";
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$timestamp = time()+date("Z");
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echo gmdate("Y-m-d\TH:i:s\Z",$timestamp);
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echo "</h1>\n";
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$localtime = date('l jS \of F Y h:i:s A', $show_timestamp);
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echo "<p>It seems another request was made from this ip address\n (${ip}) on ${localtime}.</p>\n";
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echo "<p>This lock is set for 15 minutes to deter attacks and will be released in about " . round(abs(16 - ( $timestamp - $show_timestamp ) / 60 ) ) . " minutes.</small></p>\n";
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echo "<p>There are several reasons why you would see this page:</p>\n";
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echo "<ul>";
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echo "<li>You already made a request for a show.\n
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<ul>\n
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<li>Check your email inbox and <strong>spam</strong> folder to see if the message has arrived.<br />\n
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We have had reports that sometimes gmail and hotmail consider the messages as spam. <br />\n
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We recommend <a href=\"https://onlinegroups.net/blog/2014/02/25/how-to-whitelist-an-email-address\" target=\"_blank\">white listing</a> the email address <strong>robot@hackerpublicradio.org</strong>\n
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</li>\n
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<li>You may have typed the address into the browser and it \"autofilled\" this old address</li>\n
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<li>You are using an old version of the <a href=\"${hubBaseurl}calendar.php\">calendar</a> page. Press F5 in the <a href=\"${hubBaseurl}calendar.php\">calendar</a> page to refresh.</li>\n
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</ul>\n
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</li>\n";
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echo "<li>The show has already been allocated to another host. </li>\n";
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echo "</ul>\n";
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echo "</p>\n";
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echo "<p>Return to the <a href=\"${hubBaseurl}calendar.php\">calendar</a> page.</p>\n";
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echo "<!-- If you are attacking us why not record a show telling us about what you were trying to do :) -->\n";
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echo "<hr />\n";
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echo "<p>If you are having issues please send the following information to admin @ HPR to assist in troubleshooting the issue:</p>\n";
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echo "<pre>\n";
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echo "${timestamp}\n";
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echo "${show_timestamp}\n";
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$agent = $_SERVER['HTTP_USER_AGENT'];
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$uri = $_SERVER['REQUEST_URI'];
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print "${ip}\n";
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print "${agent}\n";
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print "${uri}\n";
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echo "</pre>\n";
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echo "<hr />\n";
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file_put_contents($naughtyfile, date('Y-m-d\TH:i:s\Z') . "\t" . getUserIPAdress() . "\tExisting Request\t" . $_SERVER['REQUEST_URI'] . "\t" . $_SERVER["HTTP_USER_AGENT"] . "\n" , FILE_APPEND | LOCK_EX );
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exit;
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}
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# Create a temporary entry for this host.
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$query_add = "INSERT INTO reservations VALUES ('$ip', UTC_TIMESTAMP(), '$key', '0', '1970-01-01', 'none@example.com', '0', 'REQUEST_UNVERIFIED' )";
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$result = mysqli_query($connection, $query_add ) or die(mysqli_error());
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# Check to see if we're under attack
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$query = "SELECT COUNT(*) as total FROM `reservations` WHERE ep_num = 0";
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$result = mysqli_query($connection, "$query");
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$row = mysqli_fetch_array($result, MYSQLI_NUM);
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$total = $row[0];
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if( !isset($total) or $total > 150 ) {
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header("Status: 412 Precondition Failed");
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echo "<h1>Suspicious activity detected</h1>";
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echo "<p>$total Uploads have temporarily been suspended due to suspicious activity.<br/>
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If you are attacking us why not record a show telling us about what you were trying to do ?</p>";
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echo "<p>While these people have their fun, can we ask you to send your show another way.<br />
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Contact admin @ HPR for more information.</p>";
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exit;
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}
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// Populate the list of posted shows
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$show_array = array ();
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$ep_retrieve = "(SELECT `id`, `date` FROM eps ) UNION (SELECT `ep_num` AS id, `ep_date` AS date FROM reservations WHERE `ep_num` >0) order by id";
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if ($result = mysqli_query($connection, $ep_retrieve)) {
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while ($row = mysqli_fetch_array($result)) {
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$rowid = $row['id'];
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$date = $row['date'];
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$show_array[$rowid] = date('Y-m-d', strtotime($date) ) ;
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}
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}
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/*
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Entry is either to the page or with the id variable set (default selected)
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*/
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if (isset($_GET['id'])){
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$id = $_GET['id'];
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$id = intval($id);
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$num_get_args=0;
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foreach($_GET as $k => $v) {
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++$num_get_args;
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}
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if ( strval( intval( $id ) ) != strval( $id ) ) {
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naughty("e015b7c89da03385a9156d3e5d2eb25d");
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}
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if ( intval( $id ) <= 0 ) {
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naughty("1493a07dec01a006d11bf43d2f17e5aa");
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}
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if ( $num_get_args > 2 ) {
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naughty("79543dbb498ec47404aaed4d56bdc22b");
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}
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if ( intval($id) > 9999 ) {
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naughty("f1f531c768f64404cb00437254b06d71");
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}
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if ( $id != 9999 ) {
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if ( isset( $show_array[$id] ) ) {
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naughty("2227263ac7171aca3214d155dec539ad");
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}
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}
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}
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else {
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$id = "";
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}
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$query = mysqli_query($connection, "SELECT id, date FROM eps mo
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WHERE NOT EXISTS
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(
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SELECT NULL
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FROM eps mi
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WHERE mi.id = mo.id + 1
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)
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ORDER BY
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id
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LIMIT 1");
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$next_show_num_array = mysqli_fetch_row($query);
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$next_show_num = $next_show_num_array[0] + 1;
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$next_show_date = date('Y-m-d', strtotime($next_show_num_array[1] . ' + 1 weekday'));
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$body="give";
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//$body="index_full";
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include 'header.html';
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?>
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<main id="maincontent">
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<h1>Requesting a slot for your show.</h1>
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<p>Please select your desired slot, and enter a valid email address.<br />
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See our <a aria-label="Help on adding an episode" href="<?php echo "${baseurl}about.html#adding_an_episode"; ?>">help page</a> for more information</a>
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</p>
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<form method="POST" action="request_confirm.php">
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<table>
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<tr>
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<td>Slot:</td>
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<td>
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<?php
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echo "<select name=\"ep_num_date\">\n";
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$this_episode_date = $next_show_date;
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if ( $id == 9999 ) {
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echo "<option value=\"9999_1970-01-01\" selected>Reserve Queue.</option>\n";
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}
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else {
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echo "<option value=\"9999_1970-01-01\">Reserve Queue.</option>\n";
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}
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for ( $slot = $next_show_num; $slot<($next_show_num+365); $slot++ ) {
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if (empty($show_array[$slot])) {
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if ( $slot == $id ) {
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echo "<option value=\"${slot}_${this_episode_date}\" selected>hpr${slot} " . date('Y-m-d D', strtotime($this_episode_date) ) . "</option>\n";
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}
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else {
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}
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echo "<option value=\"${slot}_${this_episode_date}\">hpr${slot} " . date('Y-m-d D', strtotime($this_episode_date) ) . "</option>\n";
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}
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$this_episode_date = date('Y-m-d', strtotime($this_episode_date . ' + 1 weekday'));
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}
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echo "</select>";
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if ( ( $slot < $id ) AND ( $id != 9999 ) ) {
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echo "<br />\n<span id=\"small\">Unfortunately it is not possible to schedule episode $id. Please select another slot or contact admin@hackerpublicradio.org for more assistance.</span>\n";
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}
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?>
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</td>
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</tr>
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<tr>
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<td>E-mail:</td>
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<td><input required type="email" name="email" placeholder="To send you the upload link"></td>
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</tr>
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</table>
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<p><em>You must have your audio recording ready to upload <a aria-label="Help on the reserving a slot" href="<?php echo "${baseurl}about.html#reserving"; ?>"><strong>before</strong> you pick a slot</a>.</em></p>
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<input type="submit" value="Next">
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</form>
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<p>
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We will send you an email with a link to where you can upload your show.
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</p>
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</main>
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<?php
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include 'footer.html';
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?>
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