Remove length limit on oplog fields

In particular, Mythic agents can generate very long IP address entries
on agents that have multiple IPv6 NICs that would overflow the 255
character limit.

ghostwriter/oplog/migrations/0012_auto_20231208_2134.py

@@ -0,0 +1,44 @@
+# Generated by Django 3.2.19 on 2023-12-08 21:34
+
+from django.db import migrations
+import ghostwriter.oplog.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('oplog', '0011_auto_20230323_2248'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='oplog',
+            name='name',
+            field=ghostwriter.oplog.models.NoLengthLimitCharField(),
+        ),
+        migrations.AlterField(
+            model_name='oplogentry',
+            name='dest_ip',
+            field=ghostwriter.oplog.models.NoLengthLimitCharField(blank=True, help_text='Provide the destination hostname / ip on which the command was ran.', null=True, verbose_name='Destination IP / Hostname'),
+        ),
+        migrations.AlterField(
+            model_name='oplogentry',
+            name='operator_name',
+            field=ghostwriter.oplog.models.NoLengthLimitCharField(blank=True, help_text='The operator that performed the action.', null=True, verbose_name='Operator'),
+        ),
+        migrations.AlterField(
+            model_name='oplogentry',
+            name='source_ip',
+            field=ghostwriter.oplog.models.NoLengthLimitCharField(blank=True, help_text='Provide the source hostname / IP from which the command originated.', null=True, verbose_name='Source IP / Hostname'),
+        ),
+        migrations.AlterField(
+            model_name='oplogentry',
+            name='tool',
+            field=ghostwriter.oplog.models.NoLengthLimitCharField(blank=True, help_text='Name the tool you used to execute the action.', null=True, verbose_name='Tool Name'),
+        ),
+        migrations.AlterField(
+            model_name='oplogentry',
+            name='user_context',
+            field=ghostwriter.oplog.models.NoLengthLimitCharField(blank=True, help_text='The user context under which the command executed.', null=True, verbose_name='User Context'),
+        ),
+    ]

ghostwriter/oplog/models.py

@@ -7,6 +7,7 @@
 # Django Imports
 from django.core.exceptions import ValidationError
 from django.db import models
+from django import forms
 
 # 3rd Party Libraries
 from taggit.managers import TaggableManager
@@ -15,10 +16,16 @@
 logger = logging.getLogger(__name__)
 
 
+class NoLengthLimitCharField(models.TextField):
+    def formfield(self, **kwargs):
+        kwargs["widget"] = forms.TextInput
+        return super().formfield(**kwargs)
+
+
 class Oplog(models.Model):
     """Stores an individual operation log."""
 
-    name = models.CharField(max_length=255)
+    name = NoLengthLimitCharField()
     project = models.ForeignKey(
         "rolodex.Project",
         on_delete=models.CASCADE,
@@ -56,33 +63,29 @@ class OplogEntry(models.Model):
         blank=True,
         help_text="Provide the date and time the action concluded.",
     )
-    source_ip = models.CharField(
+    source_ip = NoLengthLimitCharField(
         "Source IP / Hostname",
         null=True,
         blank=True,
         help_text="Provide the source hostname / IP from which the command originated.",
-        max_length=255,
     )
-    dest_ip = models.CharField(
+    dest_ip = NoLengthLimitCharField(
         "Destination IP / Hostname",
         null=True,
         blank=True,
         help_text="Provide the destination hostname / ip on which the command was ran.",
-        max_length=255,
     )
-    tool = models.CharField(
+    tool = NoLengthLimitCharField(
         "Tool Name",
         null=True,
         blank=True,
         help_text="Name the tool you used to execute the action.",
-        max_length=255,
     )
-    user_context = models.CharField(
+    user_context = NoLengthLimitCharField(
         "User Context",
         null=True,
         blank=True,
         help_text="The user context under which the command executed.",
-        max_length=255,
     )
     command = models.TextField(
         "Command",
@@ -108,12 +111,11 @@ class OplogEntry(models.Model):
         blank=True,
         help_text="Any additional comments or useful information.",
     )
-    operator_name = models.CharField(
+    operator_name = NoLengthLimitCharField(
         "Operator",
         null=True,
         blank=True,
         help_text="The operator that performed the action.",
-        max_length=255,
     )
     tags = TaggableManager(blank=True)
     # Foreign Keys