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tools.php
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tools.php
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<?php
$base_dir = dirname(__FILE__);
# Load main config file.
require_once $base_dir . "/conf_default.php";
# Include user-defined overrides if they exist.
if( file_exists( $base_dir . "/conf.php" ) ) {
include_once $base_dir . "/conf.php";
}
# Identify whether PhantomJS exists version
if ( !isset($conf['phantomjs_exec']) ) {
if ( is_executable($conf['phantomjs_bin']) ) {
if ( preg_match("/^2/", exec($conf['phantomjs_bin'] . " -v")) ) {
$conf['phantomjs_exec'] = $conf['phantomjs_bin'] . " --ignore-ssl-errors=true " . __DIR__ . "/netsniff/netsniff-v2.js";
} else {
$conf['phantomjs_exec'] = $conf['phantomjs_bin'] . " " . __DIR__ . "/netsniff/netsniff.js";
}
$waterfall_output = true;
} else {
$waterfall_output = false;
}
}
if ( $conf['pingmtr_enabled'] and is_executable($conf['ping_bin']) and is_executable($conf['ping_bin']) ) {
$pingmtr_enabled = true;
} else {
$pingmtr_enabled = false;
}
if ( is_executable($conf['nmap_bin']) ) {
$tlsciphers_enabled = true;
} else {
$tlsciphers_enabled = false;
}
# Include user-defined function if they exist.
if( file_exists( $base_dir . "/override_functions.php" ) ) {
include_once $base_dir . "/override_functions.php";
}
// Let's make sure there is http at the front of a URL
function validate_url($url) {
$validated_url = filter_var($url, FILTER_VALIDATE_URL);
# Do another validation by verifying that http/https are specified since URL with junky schemes can be validated
if ( $validated_url ) {
$parsed_url = parse_url($validated_url);
if ( isset($parsed_url['scheme'] ) ) {
# We only support http and https.
if ( ! ($parsed_url['scheme'] == "http" || $parsed_url['scheme'] == "https" ) )
return FALSE;
} else {
return FALSE;
}
}
return $validated_url;
}
//////////////////////////////////////////////////////////////////////////////
// Generate waterfall chart from HAR (HTTP Archive file)
//////////////////////////////////////////////////////////////////////////////
function generate_waterfall($har) {
# This variable will keep the start time of the whole request chain.
$min_start_time = 10000000000;
# When did the page load finish
$max_end_time = 0;
foreach ( $har['log']['entries'] as $key => $request ) {
$started_time = $request['startedDateTime'];
$request_duration = $request['time'] / 1000;
$url = $request['request']['url'];
$resp_code = intval($request['response']['status']);
$resp_size = floatval($request['response']['content']['size']);
// Extract the milliseconds since strtotime doesn't seem to retain it
preg_match("/(.*)T(.*)\.(.*)(Z)/", $started_time, $out);
$milli = $out[3];
$start_time = floatval(strtotime($started_time) . "." . $milli);
$end_time = $start_time + $request_duration;
# Trying to find the start time of the first request
if ( $start_time < $min_start_time )
$min_start_time = $start_time;
# Find out when the last request ended
if ( $end_time > $max_end_time )
$max_end_time = $end_time;
foreach ( $request['request']['headers'] as $index => $header ) {
$req_headers[$header['name']] = $header['value'];
}
foreach ( $request['response']['headers'] as $index => $header ) {
$header_name = strtolower($header['name']);
$resp_headers[$header_name] = $header['value'];
}
ksort($resp_headers);
$requests[] = array(
"url" => $url,
"start_time" => $start_time,
"wait_time" => $request['timings']['wait'] / 1000,
"download_time" => $request['timings']['receive'] / 1000,
"duration" => $request_duration,
"size" => $resp_size,
"resp_code" => $resp_code,
"http_version" => $request['response']['httpVersion'],
"req_headers" => $req_headers,
"resp_headers" => $resp_headers
);
unset($req_headers, $resp_headers);
}
// If min_start_time is unchanged from original there was an error and
// HAR file was invalid.
if ( $min_start_time == 10000000000 ) {
print "<h1>Error</h1><p><PRE>";
print_r($har);
exit(1);
}
# Total time to fetch the page and all resources
$total_time = $max_end_time - $min_start_time;
$haroutput = '
<button class="header_button" id="show_all_headers_button" onClick="$(\'.http_headers\').toggle(); return false">Show Headers for all requests</button>
Total time for a fully downloaded page is <span id="total-time">' . sprintf("%.3f", $total_time) . '</span> sec
<table class="harview">
<tr>
<th>#</th>
<th width=50%>URL</th>
<th>Server</th>
<th>Hit?</th>
<th>Resp Code</th>
<th>Dur</th>
<th>Size (bytes)</th>
<th></th>
</tr>'
;
foreach ( $requests as $key => $request ) {
$time_offset = $request["start_time"] - $min_start_time;
$white_space = round(($time_offset / $total_time) * 100);
$wait_time_bar = ceil(($request["wait_time"] / $total_time) * 100);
$download_time_bar = ceil(($request["download_time"] / $total_time) * 100);
$haroutput .= "\n<tr class='response_" . $request["resp_code"] . "'>";
$haroutput .= "<td>" . $key . "</td>";
# Output the request url but shrink the screen output to 50 characters
$haroutput .= "<td><a href='" . $request["url"] . "'>" . substr($request["url"],0,50) . "</a>";
$content_encoding = false;
$content_type = false;
# Add button that toggles response headers
$haroutput .= '
<button class="header_button" onClick="$(\'#item_' . $key . '\').toggle(); return false">hdrs</button>
<div class="http_headers" style="display: none;" id="item_' . $key .'">';
foreach ( $request['resp_headers'] as $key => $value ) {
if ( strtolower($key) == "content-type" ) {
$content_type_full = $value;
}
if ( strtolower($key) == "content-encoding" ) {
$content_encoding = $value;
}
$haroutput .= "<b>" . htmlentities($key) . "</b>: " . htmlentities($value) . "<br />";
}
$haroutput .= "</div>";
if ( preg_match("/HTTP\/2/i", $request['http_version']) )
$haroutput .= " <button title=\"HTTP2\" class=\"http2\">H2</button>";
$compressable = false;
if ( preg_match("/text\/html/i", $content_type_full ) ) {
$content_type = "HTML";
$compressable = true;
} else if ( preg_match("/text\/css/i", $content_type_full ) ){
$content_type = "CSS";
$compressable = true;
} else if ( preg_match("/javascript|text\/js/i", $content_type_full ) ){
$content_type = "JS";
$compressable = true;
} else if ( preg_match("/image\/gif/i", $content_type_full ) ) {
$content_type = "GIF";
} else if ( preg_match("/image\/png/i", $content_type_full ) ) {
$content_type = "PNG";
} else if ( preg_match("/image\/jpeg/i", $content_type_full ) ) {
$content_type = "JPG";
} else if ( preg_match("/json/i", $content_type_full ) ) {
$content_type = "JSON";
$compressable = true;
} else if ( preg_match("/image\/webp/i", $content_type_full ) ) {
$content_type = "WEBP";
} else if ( preg_match("/svg/i", $content_type_full ) ) {
$content_type = "SVG";
$compressable = true;
# WOFF is already compressed https://developers.googleblog.com/2015/02/smaller-fonts-with-woff-20-and-unicode.html
} else if ( preg_match("/woff/i", $content_type_full ) ){
$content_type = "FONT";
} else if ( preg_match("/font/i", $content_type_full ) ){
$content_type = "FONT";
$compressable = true;
} else if ( preg_match("/text\/plain/i", $content_type_full ) ){
$content_type = "TXT";
$compressable = true;
} else if ( preg_match("/octet/i", $content_type_full ) ){
$content_type = "BIN";
} else if ( preg_match("/xml/i", $content_type_full ) ){
$content_type = "XML";
$compressable = true;
} else {
$content_type = "";
}
$addl = "";
# Check if content type is compressable and only on 2k+ files
if ( $request["size"] > 2048 && $compressable ) {
if ( $content_encoding ) {
$compressed = "yes";
$addl = "title=\"Compressed\"";
} else {
$compressed = "no";
$addl = "title=\"Not compressed however should be compressable\"";
}
} else {
$compressed = "none";
$addl = "title=\"Not compressable\"";
}
if ( $content_type != "" )
$haroutput .= " <button $addl class=\"compressed_" . $compressed ."\">". $content_type . "</button>";
# Let's check for questionable practices
$questionable_practice = array();
# Let's check for questionable practices
if ( isset($request['resp_headers']['vary']) ) {
if ( preg_match("/User-Agent/i", $request['resp_headers']['vary'] ) ) {
$questionable_practice[] = "User-Agent used in Vary";
}
if ( preg_match("/Cookie/i", $request['resp_headers']['vary'] ) ) {
$questionable_practice[] = "Cookie used in Vary";
}
}
if ( sizeof($questionable_practice) > 0 ) {
$haroutput .= "<img title=\"" . join(",", $questionable_practice) . "\" width=20 src=\"img/attention.svg\">";
}
unset($questionable_practice);
# Identify requests that Set Cookies
if ( isset($request['resp_headers']['set-cookie']) ) {
$haroutput .= "<img title=\"Contains Set Cookie\" width=18 src=\"img/cookie.png\">";
}
$haroutput .= "</td>";
#
$server = "";
$hit_or_miss = "UNK";
$hit_or_miss_css = "UNK";
# Let's try to identify some CDNs. This is Fastly
if ( isset($request['resp_headers']['x-served-by']) && preg_match("/^cache-/", $request['resp_headers']['x-served-by']) ) {
$server = "Fastly " . str_replace("cache-", "", $request['resp_headers']['x-served-by']);
}
# Check if Server header provided. It's used by NetDNA and Edgecast
else if ( isset($request['resp_headers']['server']) && preg_match("/^EC[A-Z]/", $request['resp_headers']['server']) ) {
$server = trim(preg_replace("/^EC[A-Z]/", "Edgecast", $request['resp_headers']['server']));
} else if ( isset($request['resp_headers']['server']) && preg_match("/^NetDNA/i", $request['resp_headers']['server']) ) {
$server = trim($request['resp_headers']['server']);
# CloudFront
}
else if ( isset($request['resp_headers']['via']) && preg_match("/CloudFront/i", $request['resp_headers']['via']) ) {
$server = "CloudFront";
# ChinaCache
}
else if ( isset($request['resp_headers']['powered-by-chinacache']) ) {
$server = "ChinaCache";
# Incapsula
}
else if ( isset($request['resp_headers']['x-instart-request-id']) ) {
$server = "Instart";
}
else if ( isset($request['resp_headers']['x-cdn']) and $request['resp_headers']['x-cdn'] == "Incapsula" ) {
$server = "Incapsula";
}
else if ( isset($request['resp_headers']['server']) && preg_match("/^Footprint Distributor/i", $request['resp_headers']['server']) ) {
$server = "Level3";
}
else if ( isset($request['resp_headers']['X-yottaa-optimizations']) or isset($request['resp_headers']['x-yottaa-metrics']) ) {
$server = "Yottaa";
}
# CD Networks
else if ( isset($request['resp_headers']['x-px']) ) {
if ( preg_match("/.*\.(.*)\.cdngp.net/i", $request['resp_headers']['x-px'], $out )) {
$edge_location = " " .$out[1];
} else {
$edge_location = "";
}
$server = "CDNetworks" . $edge_location;
}
# Cloudflare
else if ( isset($request['resp_headers']['cf-ray']) ) {
$server = "CF: " . preg_replace('/^(.*)-/', '', $request['resp_headers']['cf-ray']);
if ( isset($request['resp_headers']['cf-cache-status'])) {
$hit_or_miss_css = $request['resp_headers']['cf-cache-status'];
$hit_or_miss = $request['resp_headers']['cf-cache-status'];
}
}
# Highwinds
else if ( isset($request['resp_headers']['x-hw']) ) {
$server = substr("Stackpath " . preg_replace("/\d+\.(.*),\d+\.(.*)/", "$1, $2", $request['resp_headers']['x-hw']), 0, 16);
}
# Match Akamai headers
else if ( isset($request['resp_headers']['x-cache']) && preg_match("/(\w+) from.*akamai/i", $request['resp_headers']['x-cache'], $out) ) {
$server = "Akamai";
$hit_or_miss = $out[1];
} else if ( isset($request['resp_headers']['server']) && preg_match("/^CDNNet/i", $request['resp_headers']['server']) ) {
$server = "CDN.Net";
} else if ( isset($request['resp_headers']['server']) && preg_match("/keycdn/i", $request['resp_headers']['server']) ) {
$server = "KeyCDN";
# Not exhaustive way to identify Google
} else if ( preg_match("/(youtube|gstatic|doubleclick|google).*\.(com|net)\//i", $request["url"]) ) {
$server = "Google";
# Not exhaustive way to identify Facebook
} else if ( preg_match("/(facebook|fbcdn).*\.(com|net)\//i", $request["url"]) ) {
$server = "Facebook";
} else if ( preg_match("/s3.*amazonaws/i", $request["url"]) ) {
$server = "AWS S3";
} else if ( isset($request['resp_headers']['set-cookie']) && preg_match("/AWSELB/i", $request['resp_headers']['set-cookie'] ) ) {
$server = "AWS ELB";
} else if ( preg_match("/bing\.com\//i", $request["url"]) ) {
$server = "MS Bing";
} else if ( preg_match("/(yahoo|ytimg)\.com\//i", $request["url"]) ) {
$server = "Yahoo";
} else if ( isset($request['resp_headers']['server']) && $request['resp_headers']['server'] == "UploadServer" && $request['resp_headers']['x-goog-storage-class'] ) {
$server = "Google Storage";
} else if ( isset($request['resp_headers']['server']) && $request['resp_headers']['server'] == "Azion IMS" ) {
$server = "AzionCDN";
} else if ( isset($request['resp_headers']['server']) && preg_match("/^NWS/i" , $request['resp_headers']['server'] ) ) {
$server = "Tencent";
} else if ( isset($request['resp_headers']['server']) && preg_match("/leasewebcdn/i" , $request['resp_headers']['server'] ) ) {
$server = "LeaseWeb CDN";
} else if ( isset($request['resp_headers']['server']) && preg_match("/bunnycdn/i" , $request['resp_headers']['server'] ) ) {
$server = "BunnyCDN";
} else if ( isset($request['resp_headers']['server']) && $request['resp_headers']['server'] == "DOSarrest" ) {
$server = "DOSarrest";
} else if ( isset($request['resp_headers']['server']) && preg_match("/keycdn/i", $request['resp_headers']['server']) ) {
if ( isset($request['resp_headers']['x-edge-location']) ) {
$edge_location = " " .$request['resp_headers']['x-edge-location'];
} else {
$edge_location = "";
}
} else if ( isset($request['resp_headers']['x-via']) && preg_match("/1\.1 (.*) \(Cdn Cache Server/i", $request['resp_headers']['x-via'], $out ) ) {
$server = "Quantil " . $out[1];
} else if ( isset($request['resp_headers']['via']) && preg_match("/1\.1 (.*)squid/i", $request['resp_headers']['via'], $out ) ) {
$server = "Squid";
} else if ( isset($request['resp_headers']['server']) && preg_match("/myracloud/i", $request['resp_headers']['server'] )) {
$server = "MyraCloud";
} else if ( isset($request['resp_headers']['server']) && $request['resp_headers']['server'] == "EdgePrismSSL" ) {
if ( isset($request['resp_headers']['x-server-name']) )
$cache_node = $request['resp_headers']['x-server-name'];
else
$cache_node = "";
$server = "Limelight " . $cache_node;
} else if ( isset($request['resp_headers']['x-distil-cs']) ) {
$server = "Distil";
$hit_or_miss = $request['resp_headers']['x-distil-cs'];
} else if ( isset($request['resp_headers']['server']) && $request['resp_headers']['server'] == "CDN77-Turbo" ) {
$edge_location = isset($request['resp_headers']['x-edge-location']) ? " " . htmlentities($request['resp_headers']['x-edge-location']) : "";
$server = "CDN77" . $edge_location;
} else if ( isset($request['resp_headers']['x-shopid'] )) {
$server = "Shopify";
}
$cms = array();
##############################################################################################
# Figure out if a specific CMS or backend storage is being used
if ( isset($request['resp_headers']['x-ah-environment']) ) {
$cms[] = "Acquia";
} else if ( isset($request['resp_headers']['x-drupal-cache']) ) {
$cms[] = "Drupal";
} else if ( isset($request['resp_headers']['x-varnish']) || isset($request['resp_headers']['via']) && preg_match("/varnish/i", $request['resp_headers']['via']) ) {
if ( !preg_match("/fastly/i", $server) )
$cms[] = "Varnish";
# Magento version 1
} else if ( isset($request['resp_headers']['wp-super-cache']) || isset($request['resp_headers']['x-pingback']) || preg_match("/\/wp-content\//i", $request["url"] )
|| (isset($request['resp_headers']['link']) && preg_match("/wp-json|wp\.me/i", $request['resp_headers']['link']))) {
$cms[] = "Wordpress";
} else if ( isset($request['resp_headers']['set-cookie']) && preg_match("/frontend=/i", $request['resp_headers']['set-cookie'] ) ) {
$cms[] = "Magento1";
} else if ( preg_match("/\/wcsstore\//i", $request["url"] ) || (isset($request['resp_headers']['server']) && preg_match("/websphere/i", $request['resp_headers']['server'] ) ) ) {
$cms[] = "WebSphere";
} else if ( isset($request['resp_headers']['set-cookie']) && preg_match("/Demandware/i", $request['resp_headers']['set-cookie'] ) ) {
$cms[] = "Demandware";
# Let's see if the request was in some form or shape backed by S3 ie. it was served by a CDN but storage was actually
# S3. Append only if server was determined not to be AWS S3 since we don't need double output
} else if ( isset($request['resp_headers']['x-amz-id-2']) && $server != "AWS S3" ) {
$cms[] = "S3";
# Same with Google Cloud Storage (GCS)
} else if ( isset($request['resp_headers']['server']) && preg_match("/cloudinary/i", $request['resp_headers']['server']) ) {
$cms[] = "Cloudinary";
} else if ( isset($request['resp_headers']['x-goog-generation']) && $server != "Google Storage" ) {
$cms[] = "GCS";
} else if ( (isset($request['resp_headers']['server']) && $request['resp_headers']['server'] == "Cowboy") || (isset($request['resp_headers']['via']) && preg_match("/vegur/i", $request['resp_headers']['via']) )) {
$cms[] = "Heroku";
# Yottaa may be using other CDNs for their static delivery
} else if ( isset($request['resp_headers']['x-yottaa-optimizations']) and $server != "Yottaa" ) {
$cms[] = "Yottaa";
}
if ( isset($request['resp_headers']['set-cookie']) && preg_match("/BIGipServer/i", $request['resp_headers']['set-cookie'] ) ) {
$cms[] = "F5";
} else if ( isset($request['resp_headers']['set-cookie']) && preg_match("/NSC_Qspe/i", $request['resp_headers']['set-cookie'] ) ) {
$cms[] = "NetScaler";
}
if ( count($cms) > 0 ) {
$server .= "(" . join(",", $cms) . ")";
}
unset($cms);
if ( $server == "" )
$server = "Unknown";
# Let's see if we can find any Cache headers and can identify whether request was a HIT or a MISS
if ( isset($request['resp_headers']['x-cache']) && $hit_or_miss == "UNK" ) {
# We already figured out for Akamai whether's it's a hit or miss so don't do anything
if ( $server == "Akamai")
continue;
$hit_or_miss = $request['resp_headers']['x-cache'];
}
if ( $hit_or_miss != "UNK" ) {
if ( preg_match("/(TCP_HIT|TCP_MEM_HIT|Hit from Cloudfront|HIT$)/i", $hit_or_miss )) {
$hit_or_miss_css = "HIT";
} else {
$hit_or_miss_css = "MISS";
}
}
$haroutput .= '<td>' . htmlentities($server) . '</td>' .
'<td class="x-cache-' . $hit_or_miss_css . '">' . htmlentities($hit_or_miss) . '</td>' .
'<td>' . htmlentities($request["resp_code"]) . '</td>
<td align="right">' . number_format($request["duration"], 3) . '</td>
<td align="right">' . htmlentities($request["size"]) . '</td>
<td class="timeline-data"><span class="bar">' .
'<span class="fill" style="background: white; width: ' . $white_space . '%"> </span>'.
'<span class="fill" style="background: #1FE11F; width: ' . $wait_time_bar . '%"> </span>'.
'<span class="fill" style="background: #1977DD; width: ' . $download_time_bar . '%"> </span>'.
"</span></td></tr>";
}
unset($requests);
unset($har);
$haroutput .= '</table>
<script>
$(function(){
$(".header_button").button();
});
';
return $haroutput;
} // end of function generate_waterfall()
//////////////////////////////////////////////////////////////////////////////
// Use Phantom JS to produce a JSON containing the HTTP archive and the
// Image
//////////////////////////////////////////////////////////////////////////////
function get_har_using_phantomjs($original_url, $include_image = true) {
global $conf;
$url = validate_url($original_url);
if ( $url === FALSE ) {
print json_encode( array( "error" => "URL is not valid" ) );
exit(1);
}
///////////////////////////////////////////////////////////////////////////
// Can't supply suffix for the temp file therefore we'll first create the
// tempname then rename it with .png extension since that is what PhantomJS
// expects
$tmpfname1 = tempnam("/tmp", "phantom");
$tmpfname = $tmpfname1 . ".png";
rename($tmpfname1, $tmpfname);
$command = $conf['phantomjs_exec'] . " '" . $url . "' " . $tmpfname;
if ( $conf['debug'] == 1 )
error_log($command);
exec($command, $output_array, $ret_value);
// For some reason you may get DEBUG statements in the output e.g. ** (:32751): DEBUG: NP_Initialize\
// Let's get rid of them. Look for first occurence of {
foreach ( $output_array as $key => $line ) {
if ( preg_match("/^{/", $line) ) {
break;
} else
$output_array[$key] = "";
}
# Same thing at the end we may end up with stuff like this
# Unsafe JavaScript attempt to access frame with URL about:blank from frame
$found_closing_curly_brace = false;
foreach ( $output_array as $key => $line ) {
if ( ! $found_closing_curly_brace && preg_match("/^}/", $line) ) {
$found_closing_curly_brace = 1;
} else if ( $found_closing_curly_brace )
$output_array[$key] = "";
}
////////////////////////////////////////////////////////////////////////////
// Phantom JS exited normally. It doesn't mean URL properly loaded just
// that Phantom didn't fail for other reasons ie. can't execute
////////////////////////////////////////////////////////////////////////////
if ( $ret_value == 0 ) {
$output = join("\n", $output_array);
$har = json_decode($output, TRUE);
// If har_array is null JSON could not be parsed
if ( $har === NULL ) {
$out = array( "success" => 0, "error_message" => "PhantomJS ran successfully however output couldn't be parsed.");
} else {
if ( filesize($tmpfname) != 0 && $include_image )
$imgbinary = base64_encode(fread(fopen($tmpfname, "r"), filesize($tmpfname)));
else
$imgbinary = false;
unlink($tmpfname);
$out = array ( "har" => $har, "screenshot" => $imgbinary, "success" => 1 );
}
// If har_array is null JSON could not be parsed
return $out;
} else {
return array( "success" => 0, "error_message" => "PhantomJS exited abnormally. Please check your webserver error log" );
}
}
#############################################################################################
# Get DNS record
#############################################################################################
function get_dns_record_with_timing($dns_name, $query_type = "A") {
$start_time = microtime(TRUE);
switch ( $query_type ) {
case "A":
$record_type = DNS_A;
break;
case "CNAME":
$record_type = DNS_CNAME;
break;
case "AAAA":
$record_type = DNS_AAAA;
break;
case "MX":
$record_type = DNS_MX;
break;
case "SOA":
$record_type = DNS_SOA;
break;
case "TXT":
$record_type = DNS_TXT;
break;
default:
$record_type = DNS_A;
}
$result = dns_get_record($dns_name, $record_type);
# Calculate query time
$query_time = microtime(TRUE) - $start_time;
$resolver_ip_record = dns_get_record("whoami.fastly.net", DNS_A);
$resolver_ip = isset($resolver_ip_record[0]['ip']) ? $resolver_ip_record[0]['ip'] : "Unknown";
return array( "records" => $result,
"query_time" => $query_time,
"resolver_ip" => $resolver_ip );
}
############################################################################################
# Format IP address to print out
############################################################################################
if ( !function_exists("format_ip_address") ) {
function format_ip_address($ip) {
return($ip);
}
}
#############################################################################################
# Get DNS record
#############################################################################################
function print_dns_results($results) {
global $conf;
if ( count($results) > 0 ) {
# Find max time
$max_time = 0;
foreach ( $results as $site_id => $result ) {
if ( $result['query_time'] > $max_time )
$max_time = $result['query_time'];
}
?>
<table border=1 class=tablesorter>
<thead><tr>
<th>Site Name</th>
<th>Hostname</th>
<th>Resolver IP</th>
<th>TTL</th>
<th>Type</th>
<th>Record</th>
<th>Query Time (ms)</th>
</tr>
</thead>
<tbody>
<style>
.dns_bar {
background: #00FF7F
}
</style>
<?php
foreach ( $results as $site_id => $result ) {
if ( $site_id == "-1")
$site_name = "Local";
else
$site_name = $conf['remotes'][$site_id]['name'];
if ( ! isset($result['records']) or count($result['records']) == 0 ) {
print "<tr>
<td>" . $site_name . "</td>
<td>No Results</td>
<td>NA</td>
<td>NA</td>
<td>NA</td>
<td>No Results</td>
<td align=right>0</td></tr>";
continue;
}
$query_time_in_ms = round($result['query_time'] * 1000);
$resolver_ip = preg_match("/^74.125/", $result['resolver_ip']) ? $result['resolver_ip'] . " - Google DNS" : $result['resolver_ip'];
foreach( $result['records'] as $index => $record ) {
switch ( $record['type'] ) {
case "A":
$record_output = format_ip_address($record['ip']);
break;
case "AAAA":
$record_output = format_ip_address($record['ipv6']);
break;
case "CNAME":
$record_output = htmlentities($record['target']);
break;
case "TXT":
$record_output = htmlentities($record['txt']);
break;
case "MX":
$record_output = $record['pri'] . " " . htmlentities($record['target']);
break;
case "SOA":
$record_output = htmlentities($record['mname']) . " <i>" . htmlentities($record['rname'])
. "</i> Serial: " . htmlentities($record['serial']) . " Rfrsh: " . htmlentities($record['refresh'])
. " Retry/NegTTL: " . htmlentities($record['retry']) . " Expire: " . htmlentities($record['expire'])
. " MinTTL: " . htmlentities($record['minimum-ttl']);
break;
default:
$record_output = "No data. Maybe query type is unknown";
}
print "<tr>
<td>" . $site_name . "</td>
<td>" . $record['host'] . "</td>
<td>" . $resolver_ip . "</td>
<td align=right>" . $record['ttl'] . "</td>
<td>" . $record['type'] . "</td>
<td>" . $record_output . "</td>
";
print "<td><span class=\"curl_bar\">";
print '<span class="fill dns_bar" style="width: ' . floor(100 * $result['query_time']/$max_time) . '%">' .$query_time_in_ms .'</span>';
print "</span></td>";
print "</tr>";
}
}
?>
</tbody>
</table>
<script>
$("table").tablesorter();
</script>
<?php
}
}
#############################################################################################
# Get Curl timings
#############################################################################################
function get_curl_timings_with_headers($original_url, $request_headers = array()) {
$url = validate_url($original_url);
if ( $url === FALSE ) {
print json_encode( array( "error" => "URL is not valid" ) );
exit(1);
}
$url_parts = parse_url($url);
$curly = curl_init();
curl_setopt($curly, CURLOPT_HEADER, 1);
curl_setopt($curly, CURLOPT_TIMEOUT, 4);
curl_setopt($curly, CURLOPT_RETURNTRANSFER, 1);
switch ( $url_parts['scheme'] ) {
case "http":
curl_setopt($curly, CURLOPT_PROTOCOLS, CURLPROTO_HTTP);
curl_setopt($curly, CURLOPT_REDIR_PROTOCOLS, CURLPROTO_HTTP);
break;
case "https":
curl_setopt($curly, CURLOPT_PROTOCOLS, CURLPROTO_HTTPS);
curl_setopt($curly, CURLOPT_REDIR_PROTOCOLS, CURLPROTO_HTTPS);
break;
default:
die("<h3>Invalid protocol supplied. You need either http:// or https://</h3>");
}
curl_setopt($curly,CURLOPT_ENCODING , "gzip");
curl_setopt($curly, CURLOPT_HTTPHEADER, $request_headers );
curl_setopt($curly, CURLOPT_URL, $url);
curl_exec($curly);
$response = curl_multi_getcontent($curly);
if(curl_errno($curly)) {
$results = array("return_code" => 400, "response_size" => 0, "content_type" => "none", "error_message" => curl_error($curly) );
} else {
list($header, $content) = explode("\r\n\r\n", $response);
$info = curl_getinfo($curly);
$results = array(
"return_code" => $info['http_code'],
"error_message" => "",
"content_type" => $info['content_type'],
"response_size" => $info['size_download'],
"header_size" => $info['header_size'],
"headers_string" => htmlentities($header),
"md5" => md5($content),
"dns_lookuptime" => $info['namelookup_time'],
"connect_time" => $info['connect_time'] - $info['namelookup_time'],
"pretransfer_time" => $info['pretransfer_time'] - $info['connect_time'],
"starttransfer_time" => $info['starttransfer_time'] - $info['pretransfer_time'],
"transfer_time" => $info['total_time'] - $info['starttransfer_time'],
"total_time" => $info['total_time'],
"primary_ip" => isset($info['primary_ip']) ? $info['primary_ip']: "Not avail"
);
}
curl_close($curly);
return $results;
}
#############################################################################################
# Print cURL results
#############################################################################################
function print_url_results($records) {
global $conf;
print "<div class=\"time_legend\">";
print '<span class="fill dns_time" style="width: 10%">DNS time</span>';
print '<span class="fill conn_time" style="width: 10%">Conn Time</span>';
print '<span class="fill request_time" style="width: 10%">Request Sent</span>';
print '<span class="fill time_to_first_byte" style="width: 10%">TTFB wait</span>';
print '<span class="fill transfer_time" style="width: 10%">Transfer Time</span>';
print "</div><br />";
print "<table border=1 class=tablesorter>
<thead>
<tr><th>Remote</th><th>Resolved IP</th>";
if ( $conf['cdn_detection'] ) {
print " <th>X-Served-By</th>
<th>Cache Hit?</th>";
}
print " <th>Gzip</th>
<th>HTTP code</th>
<th>Resp size</th>
<th>Hdr size</th>
<th>DNS time</th>
<th>Connect Time</th><th>Request Sent</th>
<th>Time to First Byte</th><th>Tx Time</th><th>Total Time</th></tr>
</thead><tbody>";
foreach ( $records as $id => $record ) {
# Try to identify CDNs
if ( $conf['cdn_detection'] ) {
if ( preg_match("/.*X-Served-By: (.*)\n/i", $record['headers_string'], $out) ) {
$xservedby = $out[1];
} else {
$xservedby = "NA";
}
if ( preg_match("/.*X-Cache: (.*)\n/", $record['headers_string'], $out) ) {
$cache_hit = trim($out[1]);
} else {
$cache_hit = "NA";
}
}
if ( $id == -1 ) {
$site_name = "Local";
} else {
$site_name = $conf['remotes'][$id]['name'];
}
print "<tr><td rowspan=2>" . $site_name;
print "<div id='remote_" . $id . "' >".
"<button class=\"http_headers\" onClick='$(\"#url_results_" . $id . "\").toggle(); return false;'>Headers</button></div>";
print "<div id='url_results_" . $id . "' style=\"display: none;\">";
print "<pre>" . htmlentities($record['headers_string']) ;
print "</pre></div>";
print "</td>";
$gzip = preg_match("/Content-Encoding: gzip/i", $record['headers_string']) ? "Yes" : "No";
$cache_hit_styling = preg_match("/HIT$/", $cache_hit ) ? "x-cache-HIT" : "x-cache-MISS";
print "<td rowspan=2>" . $record['primary_ip'] . "</td>";
if ( $conf['cdn_detection'] ) {
print "<td rowspan=2 class=cache_servers>" . $xservedby . "</td>" .
"<td rowspan=2 class='" . $cache_hit_styling . "'>" . $cache_hit . "</td>";
}
print "<td rowspan=2 class='" . strtolower($gzip) . "-gzip'>" . $gzip . "</td>" .
"<td rowspan=2>" . $record['return_code'] . "</td>" .
"<td class=number>" . $record['response_size'] . "</td>" .
"<td class=number>" . $record['header_size'] . "</td>" .
"<td class=number>" . number_format($record['dns_lookuptime'],3) . "</td>" .
"<td class=number>" . number_format($record['connect_time'],3) . "</td>" .
"<td class=number>" . number_format($record['pretransfer_time'], 3) . "</td>" .
"<td class=number>" . number_format($record['starttransfer_time'], 3) . "</td>" .
"<td class=number>" . number_format($record['transfer_time'], 3) . "</td>" .
"<td class=number>" . number_format($record['total_time'], 3) . "</td>".
"</tr>";
# Make the bar graph of response
print "<tr><td colspan=8>";
print "<span class=\"curl_bar\">";
print '<span class="fill dns_time" style="width: ' . floor(100 * $record['dns_lookuptime']/$record['total_time']) . '%"> </span>';
print '<span class="fill conn_time" style="width: ' . floor(100 * $record['connect_time']/$record['total_time']) . '%"> </span>';
print '<span class="fill request_time" style="width: ' . floor(100 * $record['pretransfer_time']/$record['total_time']) . '%"> </span>';
print '<span class="fill time_to_first_byte" style="width: ' . floor(100 * $record['starttransfer_time']/$record['total_time']) . '%"> </span>';
print '<span class="fill transfer_time" style="width: ' . floor(100 * $record['transfer_time']/$record['total_time']) . '%"> </span>';
print "</span>";
print "</td></tr>";
} // foreach ( $records as $record ) {
print "</tbody></table>";
}
?>