added check with required php modules and dirs

public_html/check-config.php

+<?php
+/* ######################################################################
+
+  IML DEPLOYMENT
+
+  CONFIG CHECKER for new setups
+
+  ---------------------------------------------------------------------
+  2017-12-01  Axel <axel.hahn@iml.unibe.ch>
+  ###################################################################### */
+
+
+
+// ----------------------------------------------------------------------
+// functions
+// ----------------------------------------------------------------------
+
+function drawbox($s, $sClass) {
+    return '<div class="box ' . $sClass . '">' . $s . '</div>';
+}
+
+function showerror($s) {
+    return drawbox($s, 'error');
+}
+
+function showok($s) {
+    return drawbox($s, 'ok');
+}
+
+function checkdir($sDir, $sKey = false) {
+    global $aErrors;
+
+    echo 'check directory [' . $sDir . '] ';
+    if (!is_dir($sDir)) {
+        echo '<span class="error">does not exist</span><br>';
+        $aErrors[] = "* \$aConfig['$sKey'] points to a non existing directory (" . $sDir . ").\n";
+        return false;
+    } else {
+        if (!is_writable($sDir)) {
+            echo '<span class="error">not writable</span><br>';
+            $aErrors[] = "* \$aConfig['$sKey'] = " . $sDir . " is NOT writable.\n";
+            return false;
+        } else {
+            echo '<span class="ok">OK</span> exists and is writable<br>';
+            return true;
+        }
+    }
+    return false;
+}
+
+function checkModule($aRequiredMods=array()){
+    global $aErrors;
+    $sReturn='';
+    
+    $aAllMods=get_loaded_extensions(false);
+    asort($aAllMods);
+    if(!count($aRequiredMods)){
+        echo '<strong>List of all installes php modules</strong><br>';
+        foreach($aAllMods as $sMod){
+            echo $sMod.'<br>';
+        }
+    } else {
+        foreach($aRequiredMods as $sMod){
+            echo $sMod.' - ';
+            if(!array_search($sMod, $aAllMods)===false){
+                echo  '<span class="ok">OK</span> installed';
+            } else {
+                echo '<span class="error">does not exist</span>';
+                $aErrors[] = "* php module $sMod was not found.\n";
+            }
+            echo '<br>';
+        }
+    }
+    return true;   
+}
+
+// ----------------------------------------------------------------------
+// 
+// main
+// 
+// ----------------------------------------------------------------------
+
+echo '
+<style>
+    body{font-family: arial; background: #f8f8f8; color:#345;}
+    .box{border: 2px solid rgba(0,0,0,0.2); padding: 1em; margin-bottom: 1em;}
+    .ok{color:#383; background:#cfd;}
+    .error{color:#833; background:#fdd;}
+</style>
+<h1>Config Checker</h1>
+';
+
+$aErrors = array();
+include("../config/inc_projects_config.php");
+if (!isset($aConfig) || !is_array($aConfig)) {
+    // echo showerror("\$aConfig does not exist. The config was not included before including " . __FILE__ . " in the request/ script.");
+    $aErrors[] = "* \$aConfig does not exist. The config was not included before including " . __FILE__ . " in the request/ script.";
+} else {
+    
+    // ----------------------------------------------------------------------
+    echo '<h2>Check keys with directories</h2>';
+    foreach (array(
+        'appRootDir',
+        'configDir',
+        'workDir',
+        'dataDir',
+        'buildDir',
+        'buildDefaultsDir',
+        'packageDir',
+        'archiveDir',
+    ) as $sKey) {
+        checkdir($aConfig[$sKey], $sKey);
+    }
+    
+    echo '<h2>Check subdirs of key dataDir</h2>';
+    foreach (array(
+            $aConfig['dataDir'] . '/database',
+            $aConfig['dataDir'] . '/projects',
+            $aConfig['dataDir'] . '/sshkeys',
+        ) as $sDir2Check) {
+        checkdir($sDir2Check, 'dataDir + [subdir]');
+    }
+    
+    // ----------------------------------------------------------------------
+    echo '<h2>Check keys</h2>';
+    // check required keys in the config
+    foreach (array(
+    'auth',
+     'hooks',
+     'installPackages',
+     'lang',
+     'phases',
+     'projects',
+    ) as $sKey) {
+        echo "Key [$sKey] ";
+        if (!array_key_exists($sKey, $aConfig)) {
+            echo '<span class="error">failed</span> missing key [$sKey] in config<br>';
+            $aErrors[] = "* missing key [$sKey] in config\n";
+        } else {
+            echo '<span class="ok">OK</span> exists<br>';
+        }
+    }
+}
+
+echo '<h2>Check required PHP modules</h2>';
+echo 'PHP version: '.PHP_VERSION.'<br>'
+        . '<br>';
+checkModule(array(
+    'PDO','curl', 'json', 'ldap', 'pdo_sqlite'
+));
+
+echo '<h2>Result</h2>';
+
+if (count($aErrors)) {
+    echo showerror("FATAL ERROR in config.<br>" . implode("<br>\n", $aErrors));
+} else {
+    echo showok('OK, check was successfully finished.');
+}
+
+// do not enable - it shows passwords...
+// echo 'DEBUG: <pre>' . print_r($aConfig, 1) . '</pre>';