87 lines
2.3 KiB
PHP
87 lines
2.3 KiB
PHP
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#!/usr/bin/php
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<?php
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/*****************************************************************************************
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*
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* Written by Tim Price 24/11/2016
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*
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* The purpose of this script is to take a juniper config and convert it to set commands.
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* There was a business need to audit thbe correctness of Juniper configs and the process
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* of logging into each Juniper device and dumping the configs in set format was too
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* burdensome on both the Juniper devices in question but also extended the execution time
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* of the audit scripts by some minutes.
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*
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* The script will take a juniper config piped to it from STDIN and output the results to
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* STDOUT
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*
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* Usage example: `cat juniper-config.txt | juniper-config-to-set.php`
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*
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*****************************************************************************************/
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function endswith($string, $test) {
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$strlen = strlen($string);
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$testlen = strlen($test);
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if ($testlen > $strlen) return false;
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return substr_compare($string, $test, $strlen - $testlen, $testlen) === 0;
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}
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function addtotree($tree,$word) {
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array_push($tree,$word);
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return $tree;
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}
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function removewordfromtree($tree) {
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array_pop($tree);
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return $tree;
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}
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function printtree($tree) {
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return implode(" ",$tree);
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}
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$tree=array();
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while($line = fgets(STDIN)){
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// Skip any commented lines
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if(strpos($line,'#')===0) {
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continue;
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}
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// Trim white space from the line
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$line=trim($line);
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// What remains is a series of tests to see what the line ends with.
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// This test matches a ';' character which means its a leaf and we can output the
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// whole line to STDOUT
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if(endswith($line,';')) {
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// Trim the semi-colon from the end of the line, we don't need that.
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$line = rtrim($line,';');
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// Test to see if the tree is empty, if it is then we'll just print the leaf and
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// not the tree to avoid excess white spaces
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if(count($tree)==0) {
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echo "set $line\n";
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} else {
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echo "set " . printtree($tree) . " $line\n";
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}
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}
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// This test matches a '{' character on the end of the line and means we need to add a
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// branch to the tree
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if(endswith($line,'{')) {
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$line = rtrim($line,' {');
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$tree=addtotree($tree,$line);
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}
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// This test matches a '}' character on the end of the line and means we need to
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// remove the last branch that we added to the tree
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if(endswith($line,'}')) {
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$tree=removewordfromtree($tree);
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}
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}
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?>
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