Fix handling of default values for scanners (fixes #60)

The default values for dropdowns and checkboxes were not being
populated, and then the client side was initializing them to blank
strings, which caused the default values to be wrong for script and
pingless fields. This commit initializes default values for these field
types, removes the int() coercion for pingless, and changes how the
client side intializes values from default (since "false" is a valid
default).

Author: mehaase

app/pathfinder_svc.py

@@ -174,7 +174,7 @@ def enrich_report(self, report):
                 cves = self.host_enrich(host.os)
                 if cves:
                     host.cves.append(cves)
-        report.hosts[key] = host
+            report.hosts[key] = host
         return report
 
     def software_enrich(self, software):

scanners/fields.py

@@ -7,16 +7,18 @@ def __init__(self, param, label=None, default=None):
 
 
 class PulldownField:
-    def __init__(self, param, values, label=None, prompt=None):
+    def __init__(self, param, values, label=None, prompt=None, default=None):
         self.type = 'pulldown'
         self.param = param
         self.name = label or param
         self.values = values
         self.prompt = prompt
+        self.default = values[0] if default is None else default
 
 
 class CheckboxField:
-    def __init__(self, param, label=None):
+    def __init__(self, param, label=None, default=None):
         self.type = 'checkbox'
         self.param = param
         self.name = label or param
+        self.default = False if default is None else default

scanners/nmap/scanner.py

@@ -56,7 +56,7 @@ async def scan(self):
             script_args = (
                 "--script-args %s" % self.script_args if self.script_args else ""
             )
-            no_ping = "-Pn" if int(self.pingless) else ""
+            no_ping = "-Pn" if self.pingless else ""
             ports = "-p %s" % self.ports if self.ports else ""
             command = "nmap --script %s %s -sV %s -oX %s %s %s" % (
                 self.format_script(self.script),

templates/pathfinder.html

@@ -302,7 +302,7 @@ <h2>Create an Adversary</h2>
                 response.fields.forEach((field) => {
                     this.scannerFields.push({
                         ...field,
-                        value: field.default || ''
+                        value: field.default === null ? '' : field.default
                     })
                 });
             } catch(error) {