Refactored ScoutSuiteDataParser.js to improve the readability of scoutsuite data extraction process

temp

monkey/monkey_island/cc/ui/src/components/report-components/zerotrust/scoutsuite/RuleDisplay.js

@@ -17,8 +17,8 @@ export default function RuleDisplay(props) {
         <p className={'checked-resources-title'}>Resources checked: </p>
         <p>{props.rule.checked_items}</p>
       </div>
-      {props.rule.references.length !== 0 ? getReferences() : ''}
-      {props.rule.items.length !== 0 ? getResources() : ''}
+      {getReferences()}
+      {getResources()}
     </div>);
 
   function getReferences() {
@@ -30,12 +30,14 @@ export default function RuleDisplay(props) {
                          rel="noopener noreferrer"
                          key={reference}>{reference}</a>)
     })
+    if (references.length) {
       return (
         <div className={'reference-list'}>
           <p className={'reference-list-title'}>References:</p>
           {references}
         </div>)
     }
+  }
 
   function getResources() {
     let resources = []
@@ -46,14 +48,16 @@ export default function RuleDisplay(props) {
       resources.push(<ResourceDropdown resource_path={item}
                                        template_path={template_path}
                                        scoutsuite_data={props.scoutsuite_data}
-                                       key={template_path+i}/>)
+                                       key={template_path + i}/>)
     }
+    if (resources.length) {
       return (
         <div className={'reference-list'}>
           <p className={'reference-list-title'}>Flagged resources (<b>{props.rule.flagged_items}</b>):</p>
           {resources}
         </div>)
     }
+  }
 }
 
 RuleDisplay.propTypes = {

monkey/monkey_island/cc/ui/src/components/report-components/zerotrust/scoutsuite/ScoutSuiteDataParser.js

@@ -3,72 +3,104 @@ export default class ScoutSuiteDataParser {
     this.runResults = runResults
   }
 
-  /*
-  itemPath contains path to a specific value e.g. s3.buckets.da1e7081077ce92.secure_transport_enabled"
-  templatePath contains a template path for resource we would want to display e.g. s3.buckets.id
+  /**
+   *
+   * @param itemPath contains path to a specific value e.g. s3.buckets.da1e7081077ce92.secure_transport_enabled
+   * @param templatePath contains a template path for resource we would want to display e.g. s3.buckets.id
+   * @returns {*[]|*}
    */
   getResourceValue(itemPath, templatePath) {
     let resourcePath = this.fillTemplatePath(itemPath, templatePath);
-    return this.getValueAt(resourcePath);
+    return this.getObjectValueByPath(resourcePath, this.runResults);
   }
 
   fillTemplatePath(itemPath, templatePath) {
     let itemPathArray = itemPath.split('.');
     let templatePathArray = templatePath.split('.');
-    let resourcePathArray = templatePathArray.map((val, i) => {return val === 'id' ? itemPathArray[i] : val})
+    let resourcePathArray = templatePathArray.map((val, i) => {
+      return val === 'id' ? itemPathArray[i] : val
+    })
     return resourcePathArray.join('.');
   }
 
-  getValueAt(path) {
-    return this.getValueAtRecursive(path, this.runResults)
-  }
-
-  getValueAtRecursive(path, source) {
-    let value = source;
-    let current_path = path;
+  /**
+   * Retrieves value from ScoutSuite data object based on path, provided in the rule
+   * @param path E.g. a.id.c.id.e
+   * @param source E.g. {a: {b: {c: {d: {e: [{result1: 'result1'}, {result2: 'result2'}]}}}}}
+   * @returns {*[]|*} E.g. ['result1', 'result2']
+   */
+  getObjectValueByPath(path, source) {
     let key;
-    // iterate over each path elements
-    while (current_path) {
-      // check if there are more elements to the path
-      if (current_path.indexOf('.') != -1) {
-        key = current_path.substr(0, current_path.indexOf('.'));
-      }
-      // last element
-      else {
-        key = current_path;
+
+    while (path) {
+      key = this.getNextKeyInPath(path);
+      source = this.getValueForKey(key, path, source);
+      path = this.trimFirstKey(path);
     }
 
-      try {
-        // path containing an ".id"
-        if (key == 'id') {
-          let v = [];
-          let w;
-          for (let k in value) {
-            // process recursively
-            w = this.getValueAtRecursive(k + current_path.substr(current_path.indexOf('.'), current_path.length), value);
-            v = v.concat(
-              Object.values(w) // get values from array, otherwise it will be an array of key/values
-            );
-          }
-          return v;
-        }
-        // simple path, just return element in value
-        else {
-          value = value[key];
-        }
-      } catch (err) {
-        console.log('Error: ' + err)
+    return source;
   }
 
-      // check if there are more elements to process
-      if (current_path.indexOf('.') != -1) {
-        current_path = current_path.substr(current_path.indexOf('.') + 1, current_path.length);
+  getNextKeyInPath(path) {
+    if (path.indexOf('.') !== -1) {
+      return path.substr(0, path.indexOf('.'));
+    } else {
+      return path;
     }
-      // otherwise we're done
-      else {
-        current_path = false;
   }
+
+  /**
+   * Returns value from object, based on path and current key
+   * @param key E.g. "a"
+   * @param path E.g. "a.b.c"
+   * @param source E.g. {a: {b: {c: 'result'}}}
+   * @returns {[]|*}  E.g. {b: {c: 'result'}}
+   */
+  getValueForKey(key, path, source) {
+    if (key === 'id') {
+      return this.getValueByReplacingUnknownKey(path, source);
+    } else {
+      return source[key];
+    }
+  }
+
+  /**
+   * Gets value from object if first key in path doesn't match source object
+   * @param path unknown.b.c
+   * @param source {a: {b: {c: [{result:'result'}]}}}
+   * @returns {[]} 'result'
+   */
+  getValueByReplacingUnknownKey(path, source) {
+    let value = [];
+    for (let key in source) {
+      value = this.getObjectValueByPath(this.replaceFirstKey(path, key), source);
+      value = value.concat(Object.values(value));
     }
     return value;
   }
+
+  /**
+   * Replaces first key in path
+   * @param path E.g. "one.two.three"
+   * @param replacement E.g. "four"
+   * @returns string E.g. "four.two.three"
+   */
+  replaceFirstKey(path, replacement) {
+    return replacement + path.substr(path.indexOf('.'), path.length);
+  }
+
+  /**
+   * Trims the first key from dot separated path.
+   * @param path E.g. "one.two.three"
+   * @returns {string|boolean} E.g. "two.three"
+   */
+  trimFirstKey(path) {
+    if (path.indexOf('.') !== -1) {
+      return path.substr(path.indexOf('.') + 1, path.length);
+    } else {
+      return false;
+    }
+  }
+
+
 }