375 lines
12 KiB
PHP
375 lines
12 KiB
PHP
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<!--Author: Joe James, Cisco Systems, Feb-2016 -->
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<!--Description: Parses Nexus configuration code and generates from it a Puppet/Ruby manifest -->
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<img src="img/logo.png" /><br /><br />
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<LINK href="css/style.css" rel="stylesheet" type="text/css">
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</head><body>
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<?php
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/*********************************************************************************************
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# Variable definitions:
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# given a config file,
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# interface Ethernet3/12
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# access vlan 24
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# no ip redirects
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# will be converted to
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# cType ='interface'; pType='cisco_interface'; value='Ethernet3/12';
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# cAttribute='access vlan'; pAttribute='access_vlan'; value=24;
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# cmd_name='ip redirects'; pAttribute='ipv4_redirects'; value=false;
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#
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# note that type lines must not be indented, and non-type lines must be indented with at least one space or tab
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*********************************************************************************************/
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function show_form($in_string) {
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echo '<h4>Input Configuration:</h4>';
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echo '<form action="index.php" method="POST">';
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echo '<textarea name="in_string" ROWS=10 COLS=80>' . $in_string . '</textarea><br />';
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echo '<input type="submit" name="submit" value="Convert" />';
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echo '</form>';
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}
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function print_results() {
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global $manifests;
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global $instances;
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global $unrecognized;
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echo '<h4>Puppet Manifest:</h4><p class="code"><br />';
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foreach ($manifests as $key => $value) {
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echo $value . '  }<br />}<br />';
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}
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echo '</p>';
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echo '<h4>Instances:</h4><p class="code"><br />';
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foreach ($instances as $key => $value) {
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echo $value . '}<br />}<br />';
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}
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// echo '}</p>';
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if ($unrecognized != "") {
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echo ('<h4>Unrecognized Lines:</h4><p>' . $unrecognized);
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}
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}
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function is_empty($line) {
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return strlen(trim($line)) == 0;
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}
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# test increasingly shorter command strings to find type
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# returns longest match of the tokenized_line in all_types
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# returns empty string if no match found
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function get_cType($tokenized_line, $all_types, $indents) {
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$cType = "";
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for ($i = count($tokenized_line); $i >= 0; $i--) {
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$cType = join(" ", array_slice($tokenized_line, 0, $i));
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if (array_key_exists($cType , $all_types)) {
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return $cType ;
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}
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}
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if (strlen(join(" ", $tokenized_line)) > 2 && $indents == 0)
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return "command config";
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return "";
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}
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# read in Types list from Types text file
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function get_all_types() {
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$all_types = array();
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$file = fopen("types2.txt","r");
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while(! feof($file)) {
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$line = fgets($file);
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if (strlen($line) > 2) {
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$tokens = explode(";", $line);
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$all_types[trim($tokens[0])] = array(trim($tokens[1]), trim($tokens[2]), trim($tokens[3]));
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}
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}
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fclose($file);
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return $all_types;
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}
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# get number of INDENTs for a given line
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# assumes INDENTs are composed of   characters
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function get_indents($line) {
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$num_spaces = strlen($line) - strlen(ltrim($line, ' '));
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$num_indents = $num_spaces / (strlen(INDENT) / 5);
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// echo ($line . '(' . $num_indents . ')');
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return $num_indents;
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}
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function append_cmd_config_instance($pType, $lines, $cmd_config_mode, $indents) {
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global $instances;
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global $cmd_config_count;
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global $line_num;
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global $cTypes_stack;
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global $cTypes_lines_stack;
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# a line inside an unrecognized type
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if ($pType == 'cisco_command_config') {
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echo ' ' . $lines[$line_num-1] . ' ' . $indents;
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if (array_key_exists('cisco_command_config', $instances)) {
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for ($i = 0; $i < $indents; $i++) {
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$instances['cisco_command_config'] .= INDENT;
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}
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$instances['cisco_command_config'] .= $lines[$line_num-1] . '<br />';
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}
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else {
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$instances['cisco_command_config'] = INDENT . ltrim($lines[$line_num-1]) . '<br />';
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}
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//$cmd_config_count += 1;
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}
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# unrecognized parameter inside a recognized type => add to cmd_config
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else {
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if ($cmd_config_count == 0 && ! $cmd_config_mode) {
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$instances['cisco_command_config'] = '$cisco_command_config_instances = {<br />';
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}
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if (! $cmd_config_mode) {
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$instances['cisco_command_config'] .= INDENT . '"command' . $cmd_config_count . '"=>{<br>' . $cTypes_lines_stack[0] . '<br />'; // $lines[$line_num-1] . '<br />';
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}
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for ($i = 0; $i < $indents; $i++) {
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$instances['cisco_command_config'] .= INDENT;
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}
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$instances['cisco_command_config'] .= ltrim($lines[$line_num-1]) . '<br />';
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//$cmd_config_count += 1;
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}
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}
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function convert($in_string) {
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global $manifests;
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global $instances;
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global $unrecognized;
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global $line_num;
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global $cmd_config_count;
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global $cTypes_stack;
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global $cTypes_lines_stack;
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global $cmd_config_mode;
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# read in all Types, get input query and convert to list of lines, get list of types in the query
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$all_types = get_all_types();
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$lines = explode("\n", $in_string);
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// import every file in includes folder
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foreach (glob("includes/*.php") as $filename)
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include $filename;
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echo "Types: ";
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foreach ($lines as $line) {
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$pType = "";
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$cType = "";
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$value = "";
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$line_num += 1;
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$indents = get_indents($line);
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if (is_empty($line)) { continue; }
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$tokenized_line = array_map('trim', explode(" ", trim($line)));
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$cType = get_cType($tokenized_line, $all_types, $indents);
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// line is Type
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if ($cType != "") {
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// push to Types stack, get puppet type, get value
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$pType = trim($all_types[$cType][0]);
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// echo 'cType=' . $cType . ' pType=' . $pType . ' <br />';
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if (count($tokenized_line) > 1) { $value = trim(ltrim($line, $cType)); }
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if ($indents == 0) {
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array_pop($cTypes_stack);
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array_pop($cTypes_lines_stack);
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array_push($cTypes_stack, $cType);
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array_push($cTypes_lines_stack, $line);
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if ($cmd_config_mode) {
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$instances['cisco_command_config'] .= INDENT . '}<br />';
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$cmd_config_mode = false;
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$cmd_config_count += 1;
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}
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}
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// command_config type
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if ($cType == 'command config'){
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// echo $cType . ' ' . $pType . ' ' . $line;
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$value = 'command' . $cmd_config_count;
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$cmd_config_count += 1;
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// append_cmd_config_instance($pType, $lines, False, $indents);
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if ($cmd_config_count == 1) {
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$instances[$pType] = $all_types[$cType][2];
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}
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if ($cmd_config_mode) {
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$instances[$pType] .= '  }<br />';
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}
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$instances[$pType] .= '  "' . $value . '"=>{<br />';
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$instances[$pType] .= $line . '<br />';
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continue;
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}
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if (array_key_exists($pType, $manifests)) {
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$instances[$pType] .= '}<br />  "' . $value . '"=>{';
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}
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else {
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echo $pType."; ";
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$manifests[$pType] = $all_types[$cType][1] . '<br />  ' . $pType . ' { $' . ltrim(ltrim($pType, 'cisco'), '_') . ':<br />';
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$instances[$pType] = $all_types[$cType][2] . '<br />  "' . $value . '"=>{';
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}
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}
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// line is not a Type; get type off top of type stack and call function
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elseif (! empty($cTypes_stack)) {
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$pType = $all_types[array_pop((array_slice($cTypes_stack, -1)))][0]; # php should have a peek() function
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$attributes = $pType . "_commands";
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// echo '|' . $line . '|Line#'.$line_num." ";
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parse_attribute($line, $lines, $line_num, $pType, $$attributes);
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}
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}
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}
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# parse_attribute parses a single line that is not a Type
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function parse_attribute($line, $lines, $line_num, $pType, $attributes) {
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global $manifests;
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global $instances;
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global $unrecognized;
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global $cmd_config_count;
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global $cTypes_stack;
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global $cTypes_lines_stack;
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global $cmd_config_mode;
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// echo "<br />Line#".$line_num . " " . $lines[$line_num] . " pType=".$pType;
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$indents = get_indents($line);
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$line = trim($line);
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$tokenized_line = array_map('trim', explode(" ", trim($line)));
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# find attr_name
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$pAttribute = "";
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$cAttribute = "";
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$index = 0;
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if ($tokenized_line[0] != "no") {
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for ($j = count($tokenized_line); $j > 0; $j--) {
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$attribute = join(" ", array_slice($tokenized_line, 0, $j));
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if (array_key_exists($attribute, $attributes)) {
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$cAttribute = $attribute;
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$pAttribute = $attributes[$cAttribute][0];
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$index = $j;
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break;
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}
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}
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if ($cAttribute != "") {
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if ($index < count($tokenized_line)) {
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# join remaining tokens in tokenized_line into value
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$value = join(" ", array_slice($tokenized_line, $index, count($tokenized_line)));
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$values = $attributes[$cAttribute][1];
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# check if value is a valid option
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if (is_numeric($value) && strpos($value, '.') === false) {
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if (in_array('<integer>', $values)) {
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$value2 = '{$value[' . $pAttribute . ']}';
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if (strpos($manifests[$pType], $pAttribute) == false)
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$manifests[$pType] .= INDENT . INDENT . $pAttribute . " => " . $value2 . ",<br />";
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$instances[$pType] .= $pAttribute . '=>"' . $value . '",';
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}
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}
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elseif (in_array($value, $values)) {
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$value2 = '{$value[' . $pAttribute . ']}';
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if (strpos($manifests[$pType], $pAttribute) == false)
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$manifests[$pType] .= INDENT . INDENT . $pAttribute . " => " . $value2 . ",<br />";
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$instances[$pType] .= $pAttribute . '=>"' . $value . '",';
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}
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elseif (in_array('<string>', $values)) {
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$slash_index = strpos($value, '/');
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if ($pAttribute != "ipv4_address" or $slash_index === false) {
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$value2 = '{$value[' . $pAttribute . ']}';
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if (strpos($manifests[$pType], $pAttribute) == false)
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$manifests[$pType] .= INDENT . INDENT . $pAttribute . " => " . $value2 . ",<br />";
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$instances[$pType] .= $pAttribute . '=>"' . $value . '",';
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}
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# split ipv4 address and ipv4 mask into 2 commands
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else {
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$ipv4_addr = substr($value, 0, $slash_index);
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$ipv4_mask = substr($value, $slash_index+1);
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$value2 = '{$value[' . $pAttribute . ']}';
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if (strpos($manifests[$pType], $pAttribute) == false)
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$manifests[$pType] .= INDENT . INDENT . $pAttribute . " => " . $value2 . ",<br />";
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$instances[$pType] .= $pAttribute . '=>"' . $ipv4_addr . '",';
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$value2 = '{$value[ipv4_netmask_length]}';
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if (strpos($manifests[$pType], "ipv4_netmask_length") == false)
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$manifests[$pType] .= INDENT . INDENT . "ipv4_netmask_length" . " => " . $value2 . ",<br />";
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$instances[$pType] .= 'ipv4_netmask_length' . '=>"' . $ipv4_mask . '",';
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}
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}
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# value not found - invalid line
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else {
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$unrecognized .= '<span class="line_num">' . $line_num . '</span>   ' . trim($line) . '<br />';
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append_cmd_config_instance($pType, $lines, $cmd_config_mode, $indents);
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$cmd_config_mode = true;
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}
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}
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# error - no parameters given
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else {
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$unrecognized .= '<span class="line_num">' . $line_num . '</span>   ' . trim($line) . '<br />';
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append_cmd_config_instance($pType, $lines, $cmd_config_mode, $indents);
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$cmd_config_mode = true;
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}
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}
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elseif (trim($line) != "") {
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$unrecognized .= '<span class="line_num">' . $line_num . '</span>   ' . trim($line) . '<br />';
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append_cmd_config_instance($pType, $lines, $cmd_config_mode, $indents);
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$cmd_config_mode = true;
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}
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}
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# handle 'no' keyword
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else {
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for ($j = count($tokenized_line); $j > 1; $j--) {
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$attribute = join(" ", array_slice($tokenized_line, 1, $j));
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if (array_key_exists($attribute, $attributes)) {
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$cAttribute = $attribute;
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break;
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}
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}
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if ($cAttribute != "") {
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$value2 = '{$value[' . $cAttribute . ']}';
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$value = '"false"';
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if (strpos($manifests[$pType], $attributes[$cAttribute][0]) == false)
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$manifests[$pType] .= "    " . $attributes[$cAttribute][0] . " => " . $value2 . ",<br />";
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$instances[$pType] .= $attributes[$cAttribute][0] . '=>' . $value . ',';
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}
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else {
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$unrecognized .= '<span class="line_num">' . $line_num . '</span>   ' . trim($line) . '<br />';
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append_cmd_config_instance($pType, $lines, $cmd_config_mode, $indents);
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$cmd_config_mode = true;
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}
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}
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return $cmd_config_mode;
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}
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$in_string = "";
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if(isset($_POST['submit'])) {
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define('INDENT', '  ');
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$in_string = $_POST['in_string'];
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show_form($in_string);
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$manifests = array();
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$instances = array();
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$cTypes_stack = array();
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$cTypes_lines_stack = array();
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$unrecognized = "";
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$line_num = 0;
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$cmd_config_count = 0;
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$cmd_config_mode = false;
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convert($in_string);
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// echo (count($manifests));
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print_results();
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}
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else {
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show_form($in_string);
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}
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?>
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</body></html>
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