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ezab.php
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<?php
/**
* ezab.php: same as Apache Bench tool, but in php.
*
* @author G. Giunta
* @license GNU GPL 2.0
* @copyright (C) G. Giunta 2010-2019
*
* It uses curl for executing the http requests.
* It uses a multi-process scheme (tested to be working both on windows and linux):
* you will need php-cli installed for this to work.
* It can be run both as command-line script and as web page.
* It defaults to executing immediately, but you can actually include() it from
* your app and use it as a plain php class, by defining the EZAB_AS_LIB constant
* before including this file.
*
* @todo allow setting more curl options: PUT, POST, exit on socket receive error
* @todo verify if we do proper curl error checking for all cases (404 tested)
* @todo parse more stats from children (same format as ab does), eg. print connect times, nr. of keepalives etc...
* @todo check if all our calculation methods are the same as used by ab
* @todo add some nice graph output, as eg. abgraph does
* @todo !important add named constants for verbosity levels; review what is output at each level (currently used: 1 to 4)
* @todo !important add an option for a custom dir for traces/logfiles
* @todo !important raise php timeout if run() is called not from cli
* @todo !important in web mode, display a form to be filled by user that triggers the request
*/
if ( !defined( 'EZAB_AS_LIB' ) )
{
if ( !function_exists( 'curl_init' ) )
{
echo( 'Missing cURL, cannot run' );
exit( 1 );
}
$ab = new eZAB();
if ( php_sapi_name() == 'cli' )
{
// parse cli options (die with help msg if needed)
$ab->parseArgs( $argv );
}
else
{
// parse options in array format (die with help msg if needed)
$ab->parseOpts( $_GET );
}
// will run in either parent or child mode, depending on parsed options
$ab->run();
}
class eZAB
{
static $version = '0.3';
static $defaults = array(
// 'real' options
/// How much troubleshooting info to print. According to ab docs:
/// "4 and above prints information on headers, 3 and above prints response codes (404, 200, etc.), 2 and above prints warnings and info."
/// Real life testing seem to tell a different story though...
'verbosity' => 1, // -v verbosity
'children' => 1, // -c concurrency Number of multiple requests to make
'tries' => 1, // -n requests Number of requests to perform
'timeout' => 0, // -t timelimit Seconds to max. wait for responses
'auth' => false,
'proxy' => false,
'proxyauth' => false,
'target' => '',
'keepalive' => false,
'head' => false,
'interface' => '',
'respencoding' => false,
'httpversion' => CURL_HTTP_VERSION_NONE,
'cookies' => array(),
'skippercentiles' => false,
'extraheaders' => array(),
// 'internal' options
'childnr' => false,
'parentid' => false,
// the actual script path (self)
'self' => __FILE__,
'php' => 'php',
'outputformat' => 'text',
'haltonerrors' => true,
'command' => 'runparent' // allowed: 'helpmsg', 'versionmsg', 'runparent', 'runchild'
);
// config options for this instance
protected $opts = array();
public function __construct( $opts = array() )
{
$this->opts = self::$defaults;
$this->opts['outputformat'] = ( php_sapi_name() == 'cli' ) ? 'text' : 'html';
$this->opts['haltonerrors'] = !defined( 'EZAB_AS_LIB' );
$this->opts = array_merge( $this->opts, $opts );
}
/**
* Actual execution of the test, echoes results to stdout.
* Depending on options, calls runParent or runChild, or echoes help messages
* @throws Exception
*/
public function run()
{
switch ( $this->opts['command'] )
{
case 'runparent':
return $this->runParent();
case 'runchild':
echo $this->runChild();
break;
case 'versionmsg':
echo $this->versionMsg();
break;
case 'helpmsg':
echo $this->helpMsg();
break;
default:
$this->abort( 1 , 'Unknown running mode: ' . $this->opts['command'] );
}
}
/**
* Runs the test, prints results (unless verbosity option has been set to 0).
* Note: sets a value to $this->opts['parentid'], too
* @return array
* @throws Exception
*/
public function runParent()
{
// mandatory option
if ( $this->opts['target'] == '' )
{
echo $this->helpMsg();
$this->abort( 1 );
}
if ( $this->opts['verbosity'] > 1 )
{
echo $this->versionMsg();
}
if ( $this->opts['outputformat'] == 'html' && $this->opts['verbosity'] > 1 )
{
echo '<pre>';
}
$this->opts['parentid'] = time() . "." . getmypid(); // make it as unique as possible
$opts = $this->opts;
/// @todo shall we do exactly $opts['tries'] tests, making last thread execute more?
$child_tries = (int) ( $opts['tries'] / $opts['children'] );
$php = $this->getPHPExecutable( $opts['php'] );
$this->echoMsg( "Benchmarking {$opts['target']} (please be patient)...\n" );
// != from ab output
$this->echoMsg( "\nRunning {$opts['tries']} requests with {$opts['children']} parallel processes\n", 3 );
$this->echoMsg( "----------------------------------------\n", 3 );
/// @todo !important move cli opts reconstruction to a separate function
$args = "--parent " . $opts['parentid'];
$args .= " -n $child_tries -t " . escapeshellarg( $opts['timeout'] );
if ( $opts['auth'] != '' )
{
$args .= " -A " . escapeshellarg( $opts['auth'] );
}
if ( $opts['proxy'] != '' )
{
$args .= " -X ". escapeshellarg( $opts['auth'] );
if ( $opts['proxyauth'] != '' )
{
$args .= " -P ". escapeshellarg( $opts['auth'] );
}
}
if ( $opts['keepalive'] )
{
$args .= " -k";
}
if ( $opts['head'] )
{
$args .= " -i";
}
if ( $opts['interface'] != '' )
{
$args .= " -B " . $opts['interface'];
}
if ( $opts['respencoding'] )
{
$args .= " -j";
}
if ( $opts['httpversion'] == CURL_HTTP_VERSION_1_0 )
{
$args .= " -0";
}
else if ( $opts['httpversion'] == CURL_HTTP_VERSION_1_1 )
{
$args .= " -1";
}
foreach( $opts['cookies'] as $c )
{
$args .= " -C " . escapeshellarg( $c );
}
foreach( $opts['extraheaders'] as $h )
{
$args .= " -H " . escapeshellarg( $h );
}
$args .= " -v " . $opts['verbosity'];
$args .= " " . escapeshellarg( $opts['target'] );
//$starttimes = array();
$pipes = array();
$childprocs = array();
//$childresults = array();
//$time = microtime( true );
// start children
for ( $i = 0; $i < $opts['children']; $i++ )
{
$exec = escapeshellcmd( $php ) . " " . escapeshellarg( $opts['self'] ) . " --child $i " . $args;
//$starttimes[$i] = microtime( true );
$pipes[$i] = null;
$childprocs[$i] = proc_open(
$exec,
array( array( 'pipe','r' ), array( 'pipe','w' ), array( 'pipe', 'a' ) ),
$pipes[$i]
);
fclose( $pipes[$i][0] );
if ( !$childprocs[$i] )
{
/// @todo kill all open children, exit
// before using this line test that other children are terminated ok...
//$this->abort( 1, "Child process $i did not start correctly. Exiting" );
}
$this->echoMsg( "Launched child $i [ $exec ]\n", 3 );
flush();
}
// wait for all children to finish
/// @todo add a global timeout limit?
$finished = 0;
//$outputs = array();
do
{
/// @todo !important lower this - use usleep
sleep( 1 );
for ( $i = 0; $i < $opts['children']; $i++ )
{
if ( $childprocs[$i] !== false )
{
/// @todo see note from Lachlan Mulcahy on http://it.php.net/manual/en/function.proc-get-status.php:
/// to make sure buffers are not blocking children, we should read rom their pipes every now and then
/// (but not on windows, since pipes are blocking and can not be timedout, see https://bugs.php.net/bug.php?id=54717)
$status = proc_get_status( $childprocs[$i] );
if ( $status['running'] == false )
{
$childrensults[$i] = array_merge( $status, array(
'output' => stream_get_contents( $pipes[$i][1] ),
'error' => stream_get_contents( $pipes[$i][2] ),
'return' => proc_close( $childprocs[$i] )
) );
$childprocs[$i] = false;
$finished++;
}
}
}
$this->echoMsg( "." );
if ( $opts['verbosity'] > 1 )
{
flush();
}
} while( $finished < $opts['children'] );
//$time = microtime( true ) - $time;
$srv = '[NA]';
if ( $opts['verbosity'] >= 2 )
{
$out = file_get_contents( basename( $opts['parentid'] ) . '.0.trc' );
$out = preg_replace( '/^(\*.+)$/m', '', $out );
$out = preg_replace( '/[\n]+/', "\n", $out );
$this->echoMsg( $out, 2 );
if ( preg_match( '/^< Server: +(.+)$/m', $out, $matches ) )
{
$srv = $matches[1];
}
// for verbose levels 3 and above, keep trace files on disk
if ( $opts['verbosity'] == 2 )
{
for ( $i = 0; $i < $opts['children']; $i++ )
{
@unlink( basename( $opts['parentid'] ) . ".$i.trc" );
}
}
}
$this->echoMsg( "done\n" );
// print results
// != from ab output
$this->echoMsg( "\nChildren output:\n----------------------------------------\n", 3 );
for ( $i = 0; $i < $opts['children']; $i++ )
{
/// @todo beautify
$this->echoMsg( $childrensults[$i]['output'] . "\n", 3 );
}
$this->echoMsg( "\nChildren details:\n----------------------------------------\n", 4 );
$this->echoMsg( var_export( $childrensults, true ), 4 );
$outputs = array();
foreach( $childrensults as $i => $res )
{
if ( $res['exitcode'] != 0 || $res['output'] == '' )
{
$this->abort( 1, "Child process $i did not terminate correctly. Exiting" );
}
$outputs[$i] = $res['output'];
}
$data = $this->parseOutputs( $outputs );
$this->echoMsg( "\n\n" );
$this->echoMsg( "\nSummary:\n----------------------------------------\n", 3 );
$sizes = array_keys( $data['sizes'] );
$url = parse_url( $opts['target'] );
if ( @$url['port'] == '' )
{
$url['port'] = ( $url['scheme'] == 'https' ? '443' : '80' );
}
if ( @$url['path'] == '' )
{
$url['path'] = '/';
}
$pcs = '';
if ( !$opts['skippercentiles'] )
{
$pcs = "\nPercentage of the requests served within a certain time (ms)\n" .
" 50% " . sprintf( '%6u', $data['t_percentiles'][50] ) . "\n" .
" 66% " . sprintf( '%6u', $data['t_percentiles'][66] ) . "\n" .
" 75% " . sprintf( '%6u', $data['t_percentiles'][75] ) . "\n" .
" 80% " . sprintf( '%6u', $data['t_percentiles'][80] ) . "\n" .
" 90% " . sprintf( '%6u', $data['t_percentiles'][90] ) . "\n" .
" 95% " . sprintf( '%6u', $data['t_percentiles'][95] ) . "\n" .
" 98% " . sprintf( '%6u', $data['t_percentiles'][98] ) . "\n" .
" 99% " . sprintf( '%6u', $data['t_percentiles'][99] ) . "\n" .
" 100% " . sprintf( '%6u', $data['t_max'] * 1000 ) . " (longest request)";
}
$this->echoMsg(
"Server Software: {$srv}\n" .
"Server Hostname: {$url['host']}\n" .
"Server Port: {$url['port']}\n" .
"\n" .
"Document Path: {$url['path']}\n" .
"Document Length: " . reset( $sizes ) . " bytes\n" .
"\n" .
"Concurrency Level: {$opts['children']}\n" .
"Time taken for tests: " . sprintf( '%.3f', $data['tot_time'] ) . " seconds\n" .
"Complete requests: {$data['tries']}\n" . // same as AB: includes failures
"Failed requests: {$data['failures']}\n" .
"Write errors: {$data['write_errors']}\n" .
( $data['non_2xx'] ? "Non-2xx responses: {$data['non_2xx']}\n" : '' ) .
( $opts['keepalive'] ? "Keep-Alive requests: [NA]\n" : '' ) .
"Total transferred: {$data['tot_bytes']} bytes\n" .
"HTML transferred: {$data['html_bytes']} bytes\n" . // NB: includes failures
"Requests per second: " . sprintf( '%.2f', $data['rps'] ) . " [#/sec] (mean)\n" . // NB: includes failures
"Time per request: " . sprintf( '%.3f', $data['t_avg'] * 1000 ) . " [ms] (mean)\n" . // NB: excludes failures
"Time per request: [NA] [ms] (mean, across all concurrent requests)\n" .
"Transfer rate: " . sprintf( '%.2f', $data['tot_bytes'] / ( 1024 * $data['tot_time'] ) ) . " [Kbytes/sec] received\n" .
"\nConnection Times (ms)\n" .
" min mean[+/-sd] median max\n" .
//"Connect: [NA] [NA] [NA] [NA] [NA]\n" .
//"Processing: [NA] [NA] [NA] [NA] [NA]\n" .
//"Waiting: [NA] [NA] [NA] [NA] [NA]\n" .
/// @todo better formatting if numbers go over 5 digits (roughly 2 minutes)
"Total: " . sprintf( '%5u', $data['t_min'] * 1000 ) . " " . sprintf( '%5u', $data['t_avg'] * 1000 ) . " " . sprintf( '%5.1f', $data['t_stdddev'] ). " ". sprintf( '%5u', $data['t_median'] ) . " " . sprintf( '%5u', $data['t_max'] * 1000 ) . "\n" .
$pcs
);
return array(
'summary_data' => $data,
'children_details' => $childrensults
);
}
/**
* Executes the http requests, returns a csv string with the collected data
* @retrun string
*/
public function runChild()
{
$opts = $this->opts;
$resp = array(
'tries' => $opts['tries'],
'failures' => 0, // nr of reqs
'non_2xx' => 0,
'write_errors' => 0,
'tot_time' => 0.0, // secs (float) - time spent executing calls
'tot_bytes' => 0.0, // bytes (float) - total resp. sizes
'html_bytes' => 0.0, // bytes (float) - total resp. sizes
't_min' => -1,
't_max' => 0,
't_avg' => 0,
'begin' => 0.0, // secs (float)
'end' => 0.0, // secs (float)
'sizes' => array(), // index: size in bytes, value: nr. of responses received with that size
'times' => array() // index: time in msec (int), value: nr. of responses received with that time
);
//$ttime = microtime( true );
$curl = curl_init( $opts['target'] );
if ( $curl )
{
curl_setopt( $curl, CURLOPT_RETURNTRANSFER, true );
// enable receiving header too. We will need later to split by ourselves headers from body to calculate correct sizes
curl_setopt( $curl, CURLOPT_HEADER, true );
curl_setopt( $curl, CURLOPT_USERAGENT, "eZAB " . self::$version );
if ( $opts['timeout'] > 0 )
{
curl_setopt( $curl, CURLOPT_TIMEOUT, $opts['timeout'] );
}
if ( $opts['auth'] != '' )
{
curl_setopt( $curl, CURLOPT_USERPWD, $opts['auth'] );
}
if ( $opts['proxy'] != '' )
{
curl_setopt( $curl, CURLOPT_PROXY, $opts['proxy'] );
if ( $opts['proxyauth'] != '' )
{
curl_setopt( $curl, CURLOPT_PROXYAUTH, $opts['proxy'] );
}
}
if ( !$opts['keepalive'] )
{
curl_setopt( $curl, CURLOPT_HTTPHEADER, array( 'Connection: close' ) );
}
if ( $opts['head'] )
{
curl_setopt( $curl, CURLOPT_NOBODY, true );
}
if ( $opts['interface'] != '' )
{
curl_setopt( $curl, CURLOPT_INTERFACE, $opts['interface'] );
}
if ( defined( 'CURLOPT_ENCODING' ) && $opts['respencoding'] ) // appeared in curl 7.10
{
curl_setopt( $curl, CURLOPT_ENCODING, '' );
}
curl_setopt( $curl, CURLOPT_HTTP_VERSION, $opts['httpversion'] );
if ( count( $opts['cookies'] ) )
{
curl_setopt( $curl, CURLOPT_COOKIE, implode( '; ', $opts['cookies'] ) );
}
if ( count( $opts['extraheaders'] ) )
{
curl_setopt( $curl, CURLOPT_HTTPHEADER, $opts['extraheaders'] );
}
if ( $opts['verbosity'] > 1 )
{
// We're writing curl data to files instead of piping it back to the parent because:
// 1. it might be a lot of data, and there are apparently limited buffers php has for pipes
// 2. on windows reading from pipes is blocking anyway, so we can not have concurrent children
$logfp = fopen( basename( $opts['parentid'] ) . '.' . $opts['childnr'] . '.trc', 'w' );
curl_setopt( $curl, CURLOPT_VERBOSE, true );
curl_setopt( $curl, CURLOPT_STDERR, $logfp );
}
for ( $i = 0; $i < $opts['tries']; $i++ )
{
$start = microtime( true );
$result = curl_exec( $curl );
$stop = microtime( true );
$time = $stop - $start;
$resp['tot_time'] = $resp['tot_time'] + $time;
if ( $time > $resp['t_max'] )
{
$resp['t_max'] = $time;
}
if ( $time < $resp['t_min'] || $resp['t_min'] == -1 )
{
$resp['t_min'] = $time;
}
if ( $result === false )
{
$resp['failures']++;
}
else
{
$info = curl_getinfo( $curl );
if ( (int) ( $info['http_code'] / 100 ) != 2 )
{
$resp['non_2xx']++;
}
/// @todo check if AB has other cases that this one counted as "write error"
/// @see http://www.php.net/manual/en/function.curl-errno.php
if ( curl_errno( $curl ) == 23 )
{
$resp['write_errors']++;
}
//$tot_size = strlen( $result ); // uncompressed data: not ok with -j option
$html_size = $info['size_download'];
$tot_size = $html_size + $info['header_size'];
/// @todo if resp. size changes, by default it should be flagged as error (unless option specified)
$resp['sizes'][$html_size] = isset( $resp['sizes'][$html_size] ) ? ( $resp['sizes'][$html_size] + 1 ) : 1;
$resp['html_bytes'] += (float)$html_size;
$resp['tot_bytes'] += (float)$tot_size;
$timemsec = (int) ( $time * 1000 );
$resp['times'][$timemsec] = isset( $resp['times'][$timemsec] ) ? ( $resp['times'][$timemsec] + 1 ) : 1;
}
if ( $i == 0 )
{
$resp['begin'] = $start;
}
if ( $i == $resp['tries'] - 1 )
{
$resp['end'] = $stop;
}
}
curl_close( $curl );
}
else
{
$resp['failures'] = $resp['tries'];
}
//$ttime = microtime( true ) - $ttime;
if ( $opts['verbosity'] > 1 )
{
fclose( $logfp );
}
if ( $resp['t_min'] == -1 )
{
$resp['t_min'] = 0;
}
$succesful = $resp['tries'] - $resp['failures'];
/// @todo check if ab does the same calculation (excluding failures)
/// @bug $resp['tot_time'] includes time for failed requests as well...
if ( $succesful > 0 )
{
$resp['t_avg'] = $resp['tot_time'] / $succesful;
}
// use an "almost readable" csv format - not using dots or commas to avoid float problems
/// @todo !important move to a separate function
foreach( $resp['sizes'] as $size => $count )
{
$resp['sizes'][$size] = $size . '-' . $count;
}
ksort( $resp['sizes'] );
$resp['sizes'] = implode( '/', $resp['sizes'] );
foreach( $resp['times'] as $time => $count )
{
$resp['times'][$time] = $time . '-' . $count;
}
ksort( $resp['times'] );
$resp['times'] = implode( '/', $resp['times'] );
foreach( $resp as $key => $val )
{
$resp[$key] = $key . ':' . $val;
}
return implode( ';', $resp );
}
/**
* Parse the output of children processes and calculate global stats
*/
protected function parseOutputs( $outputs )
{
$resp = array(
'tries' => 0,
'failures' => 0, // nr of reqs
'non_2xx' => 0,
'write_errors' => 0,
'tot_time' => 0.0, // secs (float) - time spent executing calls
'tot_bytes' => 0.0, // bytes (float) - total resp. sizes
'html_bytes' => 0.0, // bytes (float) - total resp. sizes
't_min' => -1,
't_max' => 0,
't_avg' => 0,
'begin' => -1, // secs (float)
'end' => 0.0, // secs (float)
'sizes' => array(), // index: size in bytes, value: nr. of responses received with that size
'times' => array(), // index: time in msec (int), value: nr. of responses received with that time
'rps' => 0.0,
't_stddev' => 0.0,
't_median' => 0, // msec
't_percentiles' => array()
);
$succesful = 0;
$combinedtime = 0;
foreach( $outputs as $i => $output )
{
/// @todo !important move the parsing to a separate function
$parsing = explode( ';', $output );
foreach ( $parsing as $item )
{
$parsed = explode( ':', $item, 2 );
$data[$parsed[0]]=$parsed[1];
}
$resp['tries'] += $data['tries'];
$resp['failures'] += $data['failures'];
$resp['non_2xx'] += $data['non_2xx'];
$resp['write_errors'] += $data['write_errors'];
if ( $resp['begin'] == -1 || $resp['begin'] > $data['begin'] )
{
$resp['begin'] = $data['begin'];
}
if ( $resp['end'] < $data['end'] )
{
$resp['end'] = $data['end'];
}
if ( $resp['t_min'] == -1 || $resp['t_min'] > $data['t_min'] )
{
$resp['t_min'] = $data['t_min'];
}
if ( $resp['t_max'] < $data['t_max'] )
{
$resp['t_max'] = $data['t_max'];
}
$resp['tot_bytes'] += $data['tot_bytes'];
$resp['html_bytes'] += $data['html_bytes'];
foreach( explode( '/', $data['sizes'] ) as $size )
{
list( $size, $count ) = explode( '-', $size, 2 );
$resp['sizes'][$size] = @$resp['sizes'][$size] + $count;
}
foreach( explode( '/', $data['times'] ) as $time )
{
list( $time, $count ) = explode( '-', $time, 2 );
$resp['times'][$time] = @$resp['times'][$time] + $count;
}
$succesful += ( $data['tries'] - $data['failures'] );
$combinedtime += $data['tot_time'];
}
if ( $succesful )
{
$resp['t_avg'] = $combinedtime / $succesful;
}
// median+percentile+standard deviation calculations
ksort( $resp['times'] );
$tot = 0;
$stddev = 0;
$percents = array( 1, 0.99, 0.98, 0.95, 0.9, 0.8, 0.75, 0.66, 0.5 );
$percent = array_pop( $percents );
foreach( $resp['times'] as $time => $count )
{
$tot += $count;
$stddev += ( pow( $time - $resp['t_avg'], 2 ) * $count );
while ( $tot >= ( $succesful * $percent ) && count( $percents ) )
{
$perc = $percent * 100;
$resp['t_percentiles'][$perc] = $time;
$percent = array_pop( $percents );
}
}
$resp['t_median'] = $resp['t_percentiles'][50];
$resp['t_stdddev'] = sqrt( $stddev / $tot );
// double-check for coherence the data
if ( $succesful != $tot )
{
die( "wtf? $succesful != $tot" );
}
$resp['tot_time'] = $resp['end'] - $resp['begin'];
if ( $resp['tot_time'] )
{
$resp['rps'] = $resp['tries'] / $resp['tot_time'];
}
return $resp;
}
/**
* @param string $php
* @return string
* @throws Exception
*/
protected function getPHPExecutable( $php='php' )
{
do
{
$output = array();
exec( escapeshellcmd( $php ) . ' -v', $output );
if ( count( $output ) && strpos( $output[0], 'PHP' ) !== false )
{
return $php;
}
if ( php_sapi_name() == 'cli' && function_exists( 'readline' ) )
{
$input = readline( 'Enter path to PHP-CLI executable ( or [q] to quit )' );
if ( $input === 'q' )
{
$this->abort( 0 );
}
}
else
{
$this->abort( 1, "Can not run php subprocesses (executable: $php)" );
}
} while( true );
}
/**
* Parses args in argc/argv format (stores them, unless -h or -V are found, in which case only $this->opts['self'] is set)
* If any unknown option is found, prints help msg and exit.
* Nb: pre-existing options are not reset by this call.
* @throws Exception
*/
public function parseArgs( $argv )
{
$options = array(
'A', 'B', 'h', 'help', 'child', 'c', 'i', 'j', 'k', 'n', 'P', 'parent', 'php', 't', 'V', 'v', 'X', '1', '0', 'C', 'd', 'H'
);
$singleoptions = array( 'h', 'help', 'i', 'j', 'k', 'V', '1', '0', 'd' );
$longoptions = array();
foreach( $options as $o )
{
if ( strlen( $o ) > 1 )
{
$longoptions[] = $o;
}
}
$argc = count( $argv );
if ( $argc < 2 )
{
echo "ab: wrong number of arguments\n";
echo $this->helpMsg( @$argv[0] );
$this->abort( 1 );
}
// symlinks, etc... trust $argv[0] better than __FILE__
$this->opts['self'] = @$argv[0];
// this->opts has already been initialized by constructor
$opts = $this->opts;
for ( $i = 1; $i < $argc; $i++ )
{
if ( $argv[$i][0] == '-' )
{
$opt = ltrim( $argv[$i], '-' );
$val = null;
/// @todo we should also allow long options with no space between opt and val
if ( !in_array( $opt, $longoptions ) )
{
if ( strlen( $opt ) > 1 )
{
$val = substr( $opt, 1 );
$opt = $opt[0];
}
}
if ( !in_array( $opt, $options ) )
{
// unknown option
echo $this->helpMsg();
$this->abort( 1 );
}
if ( $val === null && !in_array( $opt, $singleoptions ) )
{
$val = @$argv[$i+1];
if ( $val[0] == '-' )
{
// two options in a row: error
echo $this->helpMsg();
$this->abort( 1 );
}
$i++;
}
switch( $opt )
{
case 'h':
case 'help':
$this->opts['command'] = 'helpmsg';
return;
case 'V':
$this->opts['command'] = 'versionmsg';
return;
case 'A':
$opts['auth'] = $val;
break;
case 'B':
$opts['interface'] = $val;
break;
case 'c':
$opts['children'] = (int)$val > 0 ? (int)$val : 1;
break;
case 'child':
$opts['childnr'] = (int)$val;
$opts['command'] = 'runchild';
break;
case 'i':
$opts['head'] = true;
break;
case 'j':
$opts['respencoding'] = true;
break;
case 'k':
$opts['keepalive'] = true;
break;
case 'n':
$opts['tries'] = (int)$val > 0 ? (int)$val : 1;
break;
case 'P':
$opts['proxyauth'] = $val;
break;
case 'parent':
$opts['parentid'] = $val;
break;
case 'php':
$opts['php'] = $val;
break;
case 't':
$opts['timeout'] = (int)$val;
break;
case 'v':
$opts['verbosity'] = (int)$val;
break;
case 'X':
$opts['proxy'] = $val;
break;
case '0':
$opts['httpversion'] = CURL_HTTP_VERSION_1_0;
break;
case '1':
$opts['httpversion'] = CURL_HTTP_VERSION_1_1;
break;
case 'C':
$opts['cookies'][] = $val;
break;
case 'd':
$opts['skippercentiles'] = true;
break;
case 'H':
$opts['extraheaders'][] = $val;
break;
default:
// unknown option
echo $this->helpMsg();
$this->abort( 1 );
}
}
else
{
// end of options: argument
$opts['target'] = $argv[$i];
}
}
$this->opts = $opts;
}
/**
* Parses args in array format (stores them, unless -h or -V are found)
* If any unknown option is found, continues.
* Nb: pre-existing options are not reset by this call.
*/
public function parseOpts( $opts )
{
if ( @$opts['h'] || @$opts['help'] )
{
$this->opts['command'] = 'helpmsg';
return;
}
if ( @$opts['V'] )
{
$this->opts['command'] = 'versionmsg';
return;
}
foreach( $opts as $key => $val )
{
switch( $key )
{
case 'A':
$opts['auth'] = $val;
unset( $opts[$key] );
break;
case 'B':
$opts['interface'] = $val;
break;
case 'c':
$opts['children'] = (int)$val > 0 ? (int)$val : 1;
unset( $opts[$key] );
break;
case 'child':
$opts['childnr'] = (int)$val;
$opts['command'] = 'runchild';
unset( $opts[$key] );
break;
case 'i':
$opts['head'] = true;
unset( $opts[$key] );
break;
case 'j':
$opts['respencoding'] = true;
unset( $opts[$key] );
break;
case 'k':
$opts['keepalive'] = true;
unset( $opts[$key] );
break;
case 'n':
$opts['tries'] = (int)$val > 0 ? (int)$val : 1;
unset( $opts[$key] );
break;
case 'P':
$opts['proxyauth'] = $val;
unset( $opts[$key] );
break;
case 'parent':
$opts['parentid'] = $val;
unset( $opts[$key] );
break;
case 't':
$opts['timeout'] = (int)$val;
unset( $opts[$key] );
break;
case 'v':
$opts['verbosity'] = (int)$val;
unset( $opts[$key] );
break;
case 'X':
$opts['proxy'] = $val;
unset( $opts[$key] );
break;
case '0':
$opts['httpversion'] = CURL_HTTP_VERSION_1_0;
unset( $opts[$key] );
break;
case '1':
$opts['httpversion'] = CURL_HTTP_VERSION_1_1;
unset( $opts[$key] );
break;
case 'C':
$opts['cookies'] = $val;
unset( $opts[$key] );
break;
case 'd':
$opts['skippercentiles'] = true;
unset( $opts[$key] );
break;
case 'H':
$opts['extraheaders'] = $val;
unset( $opts[$key] );
break;
}
}
// $this->opts is initialized by the constructor
$this->opts = array_merge( $this->opts, $opts );
}
protected function echoMsg( $msg, $lvl=1 )
{
if ( $lvl <= $this->opts['verbosity'] )
{
echo ( $this->opts['outputformat'] == 'html' ) ? htmlspecialchars( $msg ) : $msg;
}
}
/// @todo show different format for help when running from the web
public function helpMsg( $cmd='' )
{
if ( $cmd == '' )
{
$cmd = $this->opts['self'];
}
$out = '';
if ( $this->opts['outputformat'] == 'html' )
{
$out .= '<pre>';
$out .= "Usage: " . htmlspecialchars( $cmd ) . " ? [option = value &]* target=[http[s]://]hostname[:port]/path\n";