* * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License as published by the Free Software * Foundation; only version 2 of the License is applicable. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ require 'includes/html/collectd/CollectdColor.php'; use LibreNMS\CollectdColor; use LibreNMS\Config; define('REGEXP_HOST', '/^[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(\\.[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/'); define('REGEXP_PLUGIN', '/^[a-zA-Z0-9_.-]+$/'); /* * Read input variable from GET, POST or COOKIE taking * care of magic quotes * * @param string $name Name of value to return * @param array $array User-input array ($_GET, $_POST or $_COOKIE) * @param string $default Default value * @return string $default if name in unknown in $array, otherwise * input value with magic quotes stripped off */ function read_var($name, &$array, $default = null) { if (isset($array[$name])) { if (is_array($array[$name])) { if (get_magic_quotes_gpc()) { $ret = []; foreach ($array[$name] as $k => $v) { $ret[stripslashes($k)] = stripslashes($v); } return $ret; } else { return $array[$name]; } } elseif (is_string($array[$name]) && get_magic_quotes_gpc()) { return stripslashes($array[$name]); } else { return $array[$name]; } } else { return $default; } }//end read_var() /* * Alphabetically compare host names, comparing label * from tld to node name */ function collectd_compare_host($a, $b) { $ea = explode('.', $a); $eb = explode('.', $b); $i = (count($ea) - 1); $j = (count($eb) - 1); while ($i >= 0 && $j >= 0) { if (($r = strcmp($ea[$i--], $eb[$j--])) != 0) { return $r; } } return 0; }//end collectd_compare_host() /** * Fetch list of hosts found in collectd's datadirs. * * @return array Sorted list of hosts (sorted by label from rigth to left) */ function collectd_list_hosts() { $hosts = []; foreach (Config::get('datadirs') as $datadir) { if ($d = @opendir($datadir)) { while (($dent = readdir($d)) !== false) { if ($dent != '.' && $dent != '..' && is_dir($datadir . '/' . $dent) && preg_match(REGEXP_HOST, $dent)) { $hosts[] = $dent; } } closedir($d); } else { error_log('Failed to open datadir: ' . $datadir); } } $hosts = array_unique($hosts); usort($hosts, 'collectd_compare_host'); return $hosts; } /** * Fetch list of plugins found in collectd's datadirs for given host. * * @param string $arg_host Name of host for which to return plugins * @return array Sorted list of plugins (sorted alphabetically) */ function collectd_list_plugins($arg_host) { $plugins = []; foreach (Config::get('datadirs') as $datadir) { if (preg_match(REGEXP_HOST, $arg_host) && ($d = @opendir($datadir . '/' . $arg_host))) { while (($dent = readdir($d)) !== false) { if ($dent != '.' && $dent != '..' && is_dir($datadir . '/' . $arg_host . '/' . $dent)) { if ($i = strpos($dent, '-')) { $plugins[] = substr($dent, 0, $i); } else { $plugins[] = $dent; } } } closedir($d); } } $plugins = array_unique($plugins); sort($plugins); return $plugins; }//end collectd_list_plugins() /** * Fetch list of plugin instances found in collectd's datadirs for given host+plugin * * @param string $arg_host Name of host * @param string $arg_plugin Name of plugin * @return array Sorted list of plugin instances (sorted alphabetically) */ function collectd_list_pinsts($arg_host, $arg_plugin) { $pinsts = []; foreach (Config::get('datadirs') as $datadir) { if (preg_match(REGEXP_HOST, $arg_host) && ($d = opendir($datadir . '/' . $arg_host))) { while (($dent = readdir($d)) !== false) { if ($dent != '.' && $dent != '..' && is_dir($datadir . '/' . $arg_host . '/' . $dent)) { if ($i = strpos($dent, '-')) { $plugin = substr($dent, 0, $i); $pinst = substr($dent, ($i + 1)); } else { $plugin = $dent; $pinst = ''; } if ($plugin == $arg_plugin) { $pinsts[] = $pinst; } } } closedir($d); } }//end foreach $pinsts = array_unique($pinsts); sort($pinsts); return $pinsts; }//end collectd_list_pinsts() /** * Fetch list of types found in collectd's datadirs for given host+plugin+instance * * @arg_host Name of host * @arg_plugin Name of plugin * @arg_pinst Plugin instance * * @return array Sorted list of types (sorted alphabetically) */ function collectd_list_types($arg_host, $arg_plugin, $arg_pinst) { $types = []; $my_plugin = $arg_plugin . (strlen($arg_pinst) ? '-' . $arg_pinst : ''); if (! preg_match(REGEXP_PLUGIN, $my_plugin)) { return $types; } foreach (Config::get('datadirs') as $datadir) { if (preg_match(REGEXP_HOST, $arg_host) && ($d = @opendir($datadir . '/' . $arg_host . '/' . $my_plugin))) { while (($dent = readdir($d)) !== false) { if ($dent != '.' && $dent != '..' && is_file($datadir . '/' . $arg_host . '/' . $my_plugin . '/' . $dent) && substr($dent, (strlen($dent) - 4)) == '.rrd') { $dent = substr($dent, 0, (strlen($dent) - 4)); if ($i = strpos($dent, '-')) { $types[] = substr($dent, 0, $i); } else { $types[] = $dent; } } } closedir($d); } } $types = array_unique($types); sort($types); return $types; }//end collectd_list_types() /** * Fetch list of type instances found in collectd's datadirs for given host+plugin+instance+type * * @arg_host Name of host * @arg_plugin Name of plugin * @arg_pinst Plugin instance * @arg_type Type * * @return array Sorted list of type instances (sorted alphabetically) */ function collectd_list_tinsts($arg_host, $arg_plugin, $arg_pinst, $arg_type) { $tinsts = []; $my_plugin = $arg_plugin . (strlen($arg_pinst) ? '-' . $arg_pinst : ''); if (! preg_match(REGEXP_PLUGIN, $my_plugin)) { return $tinsts; } foreach (Config::get('datadirs') as $datadir) { if (preg_match(REGEXP_HOST, $arg_host) && ($d = @opendir($datadir . '/' . $arg_host . '/' . $my_plugin))) { while (($dent = readdir($d)) !== false) { if ($dent != '.' && $dent != '..' && is_file($datadir . '/' . $arg_host . '/' . $my_plugin . '/' . $dent) && substr($dent, (strlen($dent) - 4)) == '.rrd') { $dent = substr($dent, 0, (strlen($dent) - 4)); if ($i = strpos($dent, '-')) { $type = substr($dent, 0, $i); $tinst = substr($dent, ($i + 1)); } else { $type = $dent; $tinst = ''; } if ($type == $arg_type) { $tinsts[] = $tinst; } } } closedir($d); } }//end foreach $tinsts = array_unique($tinsts); sort($tinsts); return $tinsts; }//end collectd_list_tinsts() /** * Parse symlinks in order to get an identifier that collectd understands * (e.g. virtualisation is collected on host for individual VMs and can be * symlinked to the VM's hostname, support FLUSH for these by flushing * on the host-identifier instead of VM-identifier) * * @param string $host Hostname * @param string $plugin Plugin name * @param string $type * @param string $pinst Plugin instance * @param string $tinst Type instance * @return string Identifier that collectd's FLUSH command understands */ function collectd_identifier($host, $plugin, $type, $pinst, $tinst) { $rrd_realpath = null; $orig_identifier = sprintf('%s/%s%s%s/%s%s%s', $host, $plugin, strlen($pinst) ? '-' : '', $pinst, $type, strlen($tinst) ? '-' : '', $tinst); $identifier = null; foreach (Config::get('datadirs') as $datadir) { if (is_file($datadir . '/' . $orig_identifier . '.rrd')) { $rrd_realpath = realpath($datadir . '/' . $orig_identifier . '.rrd'); break; } } if ($rrd_realpath) { $identifier = basename($rrd_realpath); $identifier = substr($identifier, 0, (strlen($identifier) - 4)); $rrd_realpath = dirname($rrd_realpath); $identifier = basename($rrd_realpath) . '/' . $identifier; $rrd_realpath = dirname($rrd_realpath); $identifier = basename($rrd_realpath) . '/' . $identifier; } if (is_null($identifier)) { return $orig_identifier; } else { return $identifier; } }//end collectd_identifier() /** * Tell collectd that it should FLUSH all data it has regarding the * graph we are about to generate. * * @param string $identifier * @return bool */ function collectd_flush($identifier) { if (! Config::get('collectd_sock')) { return false; } if (is_null($identifier) || (is_array($identifier) && count($identifier) == 0) || ! (is_string($identifier) || is_array($identifier))) { return false; } $u_errno = 0; $u_errmsg = ''; if ($socket = @fsockopen(Config::get('collectd_sock'), 0, $u_errno, $u_errmsg)) { $cmd = 'FLUSH plugin=rrdtool'; if (is_array($identifier)) { foreach ($identifier as $val) { $cmd .= sprintf(' identifier="%s"', $val); } } else { $cmd .= sprintf(' identifier="%s"', $identifier); } $cmd .= "\n"; $r = fwrite($socket, $cmd, strlen($cmd)); if ($r === false || $r != strlen($cmd)) { error_log(sprintf('graph.php: Failed to write whole command to unix-socket: %d out of %d written', $r === false ? (-1) : $r, strlen($cmd))); } $resp = fgets($socket); if ($resp === false) { error_log(sprintf('graph.php: Failed to read response from collectd for command: %s', trim($cmd))); } $n = (int) $resp; while ($n-- > 0) { fgets($socket); } fclose($socket); } else { error_log(sprintf('graph.php: Failed to open unix-socket to collectd: %d: %s', $u_errno, $u_errmsg)); } return true; }//end collectd_flush() /** * Helper function to strip quotes from RRD output * * @param string $str RRD-Info generated string * @return string String with one surrounding pair of quotes stripped */ function rrd_strip_quotes($str) { if ($str[0] == '"' && $str[(strlen($str) - 1)] == '"') { return substr($str, 1, (strlen($str) - 2)); } else { return $str; } }//end rrd_strip_quotes() /** * Determine useful information about RRD file * * @param string $file Name of RRD file to analyse * @return array Array describing the RRD file */ function _rrd_info($file) { $info = ['filename' => $file]; $rrd = popen(RRDTOOL . ' info ' . escapeshellarg($file), 'r'); if ($rrd) { while (($s = fgets($rrd)) !== false) { $p = strpos($s, '='); if ($p === false) { continue; } $key = trim(substr($s, 0, $p)); $value = trim(substr($s, ($p + 1))); if (strncmp($key, 'ds[', 3) == 0) { // DS definition $p = strpos($key, ']'); $ds = substr($key, 3, ($p - 3)); if (! isset($info['DS'])) { $info['DS'] = []; } $ds_key = substr($key, ($p + 2)); if (strpos($ds_key, '[') === false) { if (! isset($info['DS']["$ds"])) { $info['DS']["$ds"] = []; } $info['DS']["$ds"]["$ds_key"] = rrd_strip_quotes($value); } } elseif (strncmp($key, 'rra[', 4) == 0) { // RRD definition $p = strpos($key, ']'); $rra = substr($key, 4, ($p - 4)); if (! isset($info['RRA'])) { $info['RRA'] = []; } $rra_key = substr($key, ($p + 2)); if (strpos($rra_key, '[') === false) { if (! isset($info['RRA']["$rra"])) { $info['RRA']["$rra"] = []; } $info['RRA']["$rra"]["$rra_key"] = rrd_strip_quotes($value); } } elseif (strpos($key, '[') === false) { $info[$key] = rrd_strip_quotes($value); }//end if }//end while pclose($rrd); }//end if return $info; }//end _rrd_info() function rrd_get_color($code, $line = true) { $name = ($line ? 'f_' : 'h_') . $code; if (! Config::has("rrd_colors.$name")) { $c_f = new CollectdColor('random'); $c_h = new CollectdColor($c_f); $c_h->fade(); Config::set("rrd_colors.f_$code", $c_f->toString()); Config::set("rrd_colors.h_$code", $c_h->toString()); } return Config::get("rrd_colors.$name"); }//end rrd_get_color() /** * Draw RRD file based on it's structure * * @param $host * @param $plugin * @param $type * @param null $pinst * @param null $tinst * @param array $opts * @return string|false Commandline to call RRDGraph in order to generate the final graph* @internal param $ */ function collectd_draw_rrd($host, $plugin, $type, $pinst = null, $tinst = null, $opts = []) { $timespan_def = null; $timespans = Config::get('timespan'); if (! isset($opts['timespan'])) { $timespan_def = reset($timespans); } else { foreach ($timespans as &$ts) { if ($ts['name'] == $opts['timespan']) { $timespan_def = $ts; } } } if (! isset($opts['rrd_opts'])) { $opts['rrd_opts'] = []; } if (isset($opts['logarithmic']) && $opts['logarithmic']) { array_unshift($opts['rrd_opts'], '-o'); } $rrdinfo = null; $rrdfile = sprintf('%s/%s%s%s/%s%s%s', $host, $plugin, is_null($pinst) ? '' : '-', $pinst, $type, is_null($tinst) ? '' : '-', $tinst); foreach (Config::get('datadirs') as $datadir) { if (is_file($datadir . '/' . $rrdfile . '.rrd')) { $rrdinfo = _rrd_info($datadir . '/' . $rrdfile . '.rrd'); if (isset($rrdinfo['RRA']) && is_array($rrdinfo['RRA'])) { break; } else { $rrdinfo = null; } } } if (is_null($rrdinfo)) { return false; } $graph = []; $has_avg = false; $has_max = false; $has_min = false; reset($rrdinfo['RRA']); $l_max = 0; foreach ($rrdinfo['RRA'] as $k => $v) { if ($v['cf'] == 'MAX') { $has_max = true; } elseif ($v['cf'] == 'AVERAGE') { $has_avg = true; } elseif ($v['cf'] == 'MIN') { $has_min = true; } } // Build legend. This may not work for all RRDs, i don't know :) if ($has_avg) { $graph[] = 'COMMENT: Last'; } if ($has_min) { $graph[] = 'COMMENT: Min'; } if ($has_max) { $graph[] = 'COMMENT: Max'; } if ($has_avg) { $graph[] = 'COMMENT: Avg\\n'; } reset($rrdinfo['DS']); foreach ($rrdinfo['DS'] as $k => $v) { if (strlen($k) > $l_max) { $l_max = strlen($k); } if ($has_min) { $graph[] = sprintf('DEF:%s_min=%s:%s:MIN', $k, $rrdinfo['filename'], $k); } if ($has_avg) { $graph[] = sprintf('DEF:%s_avg=%s:%s:AVERAGE', $k, $rrdinfo['filename'], $k); } if ($has_max) { $graph[] = sprintf('DEF:%s_max=%s:%s:MAX', $k, $rrdinfo['filename'], $k); } } if ($has_min && $has_max || $has_min && $has_avg || $has_avg && $has_max) { $n = 1; reset($rrdinfo['DS']); foreach ($rrdinfo['DS'] as $k => $v) { $graph[] = sprintf('LINE:%s_%s', $k, $has_min ? 'min' : 'avg'); $graph[] = sprintf('CDEF:%s_var=%s_%s,%s_%s,-', $k, $k, $has_max ? 'max' : 'avg', $k, $has_min ? 'min' : 'avg'); $graph[] = sprintf('AREA:%s_var#%s::STACK', $k, rrd_get_color($n++, false)); } } reset($rrdinfo['DS']); $n = 1; foreach ($rrdinfo['DS'] as $k => $v) { $graph[] = sprintf('LINE1:%s_avg#%s:%s ', $k, rrd_get_color($n++, true), $k . substr(' ', 0, ($l_max - strlen($k)))); if (isset($opts['tinylegend']) && $opts['tinylegend']) { continue; } if ($has_avg) { $graph[] = sprintf('GPRINT:%s_avg:AVERAGE:%%5.1lf%%s', $k, $has_max || $has_min || $has_avg ? ',' : '\\l'); } if ($has_min) { $graph[] = sprintf('GPRINT:%s_min:MIN:%%5.1lf%%s', $k, $has_max || $has_avg ? ',' : '\\l'); } if ($has_max) { $graph[] = sprintf('GPRINT:%s_max:MAX:%%5.1lf%%s', $k, $has_avg ? ',' : '\\l'); } if ($has_avg) { $graph[] = sprintf('GPRINT:%s_avg:LAST:%%5.1lf%%s\\l', $k); } }//end while // $rrd_cmd = array(RRDTOOL, 'graph', '-', '-E', '-a', 'PNG', '-w', Config::get('rrd_width'), '-h', Config::get('rrd_height'), '-t', $rrdfile); $rrd_cmd = [ RRDTOOL, 'graph', '-', '-E', '-a', 'PNG', '-w', Config::get('rrd_width'), '-h', Config::get('rrd_height'), ]; if (Config::get('rrd_width') <= '300') { $small_opts = [ '--font', 'LEGEND:7:mono', '--font', 'AXIS:6:mono', '--font-render-mode', 'normal', ]; $rrd_cmd = array_merge($rrd_cmd, $small_opts); } $rrd_cmd = array_merge($rrd_cmd, Config::get('rrd_opts_array'), $opts['rrd_opts'], $graph); $cmd = RRDTOOL; $count_rrd_cmd = count($rrd_cmd); for ($i = 1; $i < $count_rrd_cmd; $i++) { $cmd .= ' ' . escapeshellarg($rrd_cmd[$i]); } return $cmd; }//end collectd_draw_rrd() /** * Draw RRD file based on it's structure * * @param $timespan * @param $host * @param $plugin * @param $type * @param null $pinst * @param null $tinst * @return false|string Commandline to call RRDGraph in order to generate the final graph* @internal param $ */ function collectd_draw_generic($timespan, $host, $plugin, $type, $pinst = null, $tinst = null) { global $GraphDefs; $timespan_def = null; $timespans = Config::get('timespan'); foreach ($timespans as &$ts) { if ($ts['name'] == $timespan) { $timespan_def = $ts; } } if (is_null($timespan_def)) { $timespan_def = reset($timespans); } if (! isset($GraphDefs[$type])) { return false; } $rrd_file = sprintf('%s/%s%s%s/%s%s%s', $host, $plugin, is_null($pinst) ? '' : '-', $pinst, $type, is_null($tinst) ? '' : '-', $tinst); // $rrd_cmd = array(RRDTOOL, 'graph', '-', '-E', '-a', 'PNG', '-w', Config::get('rrd_width'), '-h', Config::get('rrd_height'), '-t', $rrd_file); $rrd_cmd = [ RRDTOOL, 'graph', '-', '-E', '-a', 'PNG', '-w', Config::get('rrd_width'), '-h', Config::get('rrd_height'), ]; if (Config::get('rrd_width') <= '300') { $small_opts = [ '--font', 'LEGEND:7:mono', '--font', 'AXIS:6:mono', '--font-render-mode', 'normal', ]; $rrd_cmd = array_merge($rrd_cmd, $small_opts); } $rrd_cmd = array_merge($rrd_cmd, Config::get('rrd_opts_array')); $rrd_args = $GraphDefs[$type]; foreach (Config::get('datadirs') as $datadir) { $file = $datadir . '/' . $rrd_file . '.rrd'; if (! is_file($file)) { continue; } $file = str_replace(':', '\\:', $file); $rrd_args = str_replace('{file}', $file, $rrd_args); $rrdgraph = array_merge($rrd_cmd, $rrd_args); $cmd = RRDTOOL; $count_rrdgraph = count($rrdgraph); for ($i = 1; $i < $count_rrdgraph; $i++) { $cmd .= ' ' . escapeshellarg($rrdgraph[$i]); } return $cmd; } return false; }//end collectd_draw_generic() /** * Draw stack-graph for set of RRD files * * @param array $opts Graph options like colors * @param array $sources List of array(name, file, ds) * @return string Commandline to call RRDGraph in order to generate the final graph */ function collectd_draw_meta_stack(&$opts, &$sources) { $timespan_def = null; $timespans = Config::get('timespan'); if (! isset($opts['timespan'])) { $timespan_def = reset($timespans); } else { foreach ($timespans as &$ts) { if ($ts['name'] == $opts['timespan']) { $timespan_def = $ts; } } } if (! isset($opts['title'])) { $opts['title'] = 'Unknown title'; } if (! isset($opts['rrd_opts'])) { $opts['rrd_opts'] = []; } if (! isset($opts['colors'])) { $opts['colors'] = []; } if (isset($opts['logarithmic']) && $opts['logarithmic']) { array_unshift($opts['rrd_opts'], '-o'); } // $cmd = array(RRDTOOL, 'graph', '-', '-E', '-a', 'PNG', '-w', Config::get('rrd_width'), '-h', Config::get('rrd_height'), // '-t', $opts['title']); $cmd = [ RRDTOOL, 'graph', '-', '-E', '-a', 'PNG', '-w', Config::get('rrd_width'), '-h', Config::get('rrd_height'), ]; if (Config::get('rrd_width') <= '300') { $small_opts = [ '--font', 'LEGEND:7:mono', '--font', 'AXIS:6:mono', '--font-render-mode', 'normal', ]; $cmd = array_merge($cmd, $small_opts); } $cmd = array_merge($cmd, Config::get('rrd_opts_array'), $opts['rrd_opts']); $max_inst_name = 0; foreach ($sources as &$inst_data) { $inst_name = $inst_data['name']; $file = $inst_data['file']; $ds = isset($inst_data['ds']) ? $inst_data['ds'] : 'value'; if (strlen($inst_name) > $max_inst_name) { $max_inst_name = strlen($inst_name); } if (! is_file($file)) { continue; } $cmd[] = 'DEF:' . $inst_name . '_min=' . $file . ':' . $ds . ':MIN'; $cmd[] = 'DEF:' . $inst_name . '_avg=' . $file . ':' . $ds . ':AVERAGE'; $cmd[] = 'DEF:' . $inst_name . '_max=' . $file . ':' . $ds . ':MAX'; $cmd[] = 'CDEF:' . $inst_name . '_nnl=' . $inst_name . '_avg,UN,0,' . $inst_name . '_avg,IF'; } $inst_data = end($sources); $inst_name = $inst_data['name']; $cmd[] = 'CDEF:' . $inst_name . '_stk=' . $inst_name . '_nnl'; $inst_data1 = end($sources); while (($inst_data0 = prev($sources)) !== false) { $inst_name0 = $inst_data0['name']; $inst_name1 = $inst_data1['name']; $cmd[] = 'CDEF:' . $inst_name0 . '_stk=' . $inst_name0 . '_nnl,' . $inst_name1 . '_stk,+'; $inst_data1 = $inst_data0; } foreach ($sources as &$inst_data) { $inst_name = $inst_data['name']; // $legend = sprintf('%s', $inst_name); $legend = $inst_name; while (strlen($legend) < $max_inst_name) { $legend .= ' '; } $number_format = isset($opts['number_format']) ? $opts['number_format'] : '%6.1lf'; if (isset($opts['colors'][$inst_name])) { $line_color = new CollectdColor($opts['colors'][$inst_name]); } else { $line_color = new CollectdColor('random'); } $area_color = new CollectdColor($line_color); $area_color->fade(); $cmd[] = 'AREA:' . $inst_name . '_stk#' . $area_color->toString(); $cmd[] = 'LINE1:' . $inst_name . '_stk#' . $line_color->toString() . ':' . $legend; if (! (isset($opts['tinylegend']) && $opts['tinylegend'])) { $cmd[] = 'GPRINT:' . $inst_name . '_avg:LAST:' . $number_format . ''; $cmd[] = 'GPRINT:' . $inst_name . '_avg:AVERAGE:' . $number_format . ''; $cmd[] = 'GPRINT:' . $inst_name . '_min:MIN:' . $number_format . ''; $cmd[] = 'GPRINT:' . $inst_name . '_max:MAX:' . $number_format . '\\l'; } }//end foreach $rrdcmd = RRDTOOL; $count_cmd = count($cmd); for ($i = 1; $i < $count_cmd; $i++) { $rrdcmd .= ' ' . escapeshellarg($cmd[$i]); } return $rrdcmd; }//end collectd_draw_meta_stack() /** * Draw stack-graph for set of RRD files * * @param array $opts Graph options like colors * @param array $sources List of array(name, file, ds) * @return string Commandline to call RRDGraph in order to generate the final graph */ function collectd_draw_meta_line(&$opts, &$sources) { $timespan_def = null; $timespans = Config::get('timespan'); if (! isset($opts['timespan'])) { $timespan_def = reset($timespans); } else { foreach ($timespans as &$ts) { if ($ts['name'] == $opts['timespan']) { $timespan_def = $ts; } } } if (! isset($opts['title'])) { $opts['title'] = 'Unknown title'; } if (! isset($opts['rrd_opts'])) { $opts['rrd_opts'] = []; } if (! isset($opts['colors'])) { $opts['colors'] = []; } if (isset($opts['logarithmic']) && $opts['logarithmic']) { array_unshift($opts['rrd_opts'], '-o'); } // $cmd = array(RRDTOOL, 'graph', '-', '-E', '-a', 'PNG', '-w', Config::get('rrd_width'), '-h', Config::get('rrd_height'), '-t', $opts['title']); // $cmd = array_merge($cmd, Config::get('rrd_opts_array'), $opts['rrd_opts']); $cmd = [ RRDTOOL, 'graph', '-', '-E', '-a', 'PNG', '-w', Config::get('rrd_width'), '-h', Config::get('rrd_height'), ]; if (Config::get('rrd_width') <= '300') { $small_opts = [ '--font', 'LEGEND:7:mono', '--font', 'AXIS:6:mono', '--font-render-mode', 'normal', ]; $cmd = array_merge($cmd, $small_opts); } $max_inst_name = 0; foreach ($sources as &$inst_data) { $inst_name = $inst_data['name']; $file = $inst_data['file']; $ds = isset($inst_data['ds']) ? $inst_data['ds'] : 'value'; if (strlen($inst_name) > $max_inst_name) { $max_inst_name = strlen($inst_name); } if (! is_file($file)) { continue; } $cmd[] = 'DEF:' . $inst_name . '_min=' . $file . ':' . $ds . ':MIN'; $cmd[] = 'DEF:' . $inst_name . '_avg=' . $file . ':' . $ds . ':AVERAGE'; $cmd[] = 'DEF:' . $inst_name . '_max=' . $file . ':' . $ds . ':MAX'; } foreach ($sources as &$inst_data) { $inst_name = $inst_data['name']; $legend = sprintf('%s', $inst_name); while (strlen($legend) < $max_inst_name) { $legend .= ' '; } $number_format = isset($opts['number_format']) ? $opts['number_format'] : '%6.1lf'; if (isset($opts['colors'][$inst_name])) { $line_color = new CollectdColor($opts['colors'][$inst_name]); } else { $line_color = new CollectdColor('random'); } $cmd[] = 'LINE1:' . $inst_name . '_avg#' . $line_color->toString() . ':' . $legend; if (! (isset($opts['tinylegend']) && $opts['tinylegend'])) { $cmd[] = 'GPRINT:' . $inst_name . '_min:MIN:' . $number_format . ''; $cmd[] = 'GPRINT:' . $inst_name . '_avg:AVERAGE:' . $number_format . ''; $cmd[] = 'GPRINT:' . $inst_name . '_max:MAX:' . $number_format . ''; $cmd[] = 'GPRINT:' . $inst_name . '_avg:LAST:' . $number_format . '\\l'; } }//end foreach $rrdcmd = RRDTOOL; $count_cmd = count($cmd); for ($i = 1; $i < $count_cmd; $i++) { $rrdcmd .= ' ' . escapeshellarg($cmd[$i]); } return $rrdcmd; }//end collectd_draw_meta_line()