16 files changed, 312 insertions, 3 deletions
diff --git a/pydis_site/apps/api/models/bot/deleted_message.py b/pydis_site/apps/api/models/bot/deleted_message.py
index eb7f4c89..1eb4516e 100644
--- a/pydis_site/apps/api/models/bot/deleted_message.py
+++ b/pydis_site/apps/api/models/bot/deleted_message.py
@@ -12,3 +12,8 @@ class DeletedMessage(Message):
         help_text="The deletion context this message is part of.",
         on_delete=models.CASCADE
     )
+
+    class Meta:
+        """Sets the default ordering for list views to oldest first."""
+
+        ordering = ["id"]
diff --git a/pydis_site/apps/api/models/bot/message.py b/pydis_site/apps/api/models/bot/message.py
index 6b566620..31316a01 100644
--- a/pydis_site/apps/api/models/bot/message.py
+++ b/pydis_site/apps/api/models/bot/message.py
@@ -1,6 +1,9 @@
+from datetime import datetime
+
 from django.contrib.postgres import fields as pgfields
 from django.core.validators import MinValueValidator
 from django.db import models
+from django.utils import timezone
 
 from pydis_site.apps.api.models.bot.tag import validate_tag_embed
 from pydis_site.apps.api.models.bot.user import User
@@ -49,6 +52,13 @@ class Message(ModelReprMixin, models.Model):
         help_text="Embeds attached to this message."
     )
 
+    @property
+    def timestamp(self) -> datetime:
+        """Attribute that represents the message timestamp as derived from the snowflake id."""
+        tz_naive_datetime = datetime.utcfromtimestamp(((self.id >> 22) + 1420070400000) / 1000)
+        tz_aware_datetime = timezone.make_aware(tz_naive_datetime, timezone=timezone.utc)
+        return tz_aware_datetime
+
     class Meta:
         """Metadata provided for Django's ORM."""
 
diff --git a/pydis_site/apps/api/models/bot/tag.py b/pydis_site/apps/api/models/bot/tag.py
index 01b49525..de4eab30 100644
--- a/pydis_site/apps/api/models/bot/tag.py
+++ b/pydis_site/apps/api/models/bot/tag.py
@@ -1,4 +1,5 @@
 from collections.abc import Mapping
+from typing import Any
 
 from django.contrib.postgres import fields as pgfields
 from django.core.exceptions import ValidationError
@@ -8,17 +9,31 @@ from django.db import models
 from pydis_site.apps.api.models.utils import ModelReprMixin
 
 
+def is_bool_validator(value: Any) -> None:
+    """Validates if a given value is of type bool."""
+    if not isinstance(value, bool):
+        raise ValidationError(f"This field must be of type bool, not {type(value)}.")
+
+
 def validate_tag_embed_fields(fields):
     """Raises a ValidationError if any of the given embed fields is invalid."""
     field_validators = {
         'name': (MaxLengthValidator(limit_value=256),),
-        'value': (MaxLengthValidator(limit_value=1024),)
+        'value': (MaxLengthValidator(limit_value=1024),),
+        'inline': (is_bool_validator,),
     }
 
+    required_fields = ('name', 'value')
+
     for field in fields:
         if not isinstance(field, Mapping):
             raise ValidationError("Embed fields must be a mapping.")
 
+        if not all(required_field in field for required_field in required_fields):
+            raise ValidationError(
+                f"Embed fields must contain the following fields: {', '.join(required_fields)}."
+            )
+
         for field_name, value in field.items():
             if field_name not in field_validators:
                 raise ValidationError(f"Unknown embed field field: {field_name!r}.")
diff --git a/pydis_site/apps/api/tests/test_validators.py b/pydis_site/apps/api/tests/test_validators.py
index ffa2f61e..4222f0c0 100644
--- a/pydis_site/apps/api/tests/test_validators.py
+++ b/pydis_site/apps/api/tests/test_validators.py
@@ -119,18 +119,53 @@ class TagEmbedValidatorTests(TestCase):
                         'value': "LOOK AT ME"
                     },
                     {
+                        'name': "Totally valid",
+                        'value': "LOOK AT ME",
                         'oh': "what is this key?"
                     }
                 ]
             })
 
+    def test_rejects_missing_required_field_field(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'fields': [
+                    {
+                        'name': "Totally valid",
+                        'inline': True,
+                    }
+                ]
+            })
+
+    def test_rejects_invalid_inline_field_field(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'fields': [
+                    {
+                        'name': "Totally valid",
+                        'value': "LOOK AT ME",
+                        'inline': "Totally not a boolean",
+                    }
+                ]
+            })
+
     def test_allows_valid_fields(self):
         validate_tag_embed({
             'fields': [
                 {
                     'name': "valid",
-                    'value': "field"
-                }
+                    'value': "field",
+                },
+                {
+                    'name': "valid",
+                    'value': "field",
+                    'inline': False,
+                },
+                {
+                    'name': "valid",
+                    'value': "field",
+                    'inline': True,
+                },
             ]
         })
 
diff --git a/pydis_site/apps/staff/__init__.py b/pydis_site/apps/staff/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/pydis_site/apps/staff/__init__.py
diff --git a/pydis_site/apps/staff/apps.py b/pydis_site/apps/staff/apps.py
new file mode 100644
index 00000000..70a15f40
--- /dev/null
+++ b/pydis_site/apps/staff/apps.py
@@ -0,0 +1,7 @@
+from django.apps import AppConfig
+
+
+class StaffConfig(AppConfig):
+    """Django AppConfig for the staff app."""
+
+    name = 'staff'
diff --git a/pydis_site/apps/staff/migrations/__init__.py b/pydis_site/apps/staff/migrations/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/pydis_site/apps/staff/migrations/__init__.py
diff --git a/pydis_site/apps/staff/models/__init__.py b/pydis_site/apps/staff/models/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/pydis_site/apps/staff/models/__init__.py
diff --git a/pydis_site/apps/staff/templatetags/__init__.py b/pydis_site/apps/staff/templatetags/__init__.py
new file mode 100644
index 00000000..e8b6983a
--- /dev/null
+++ b/pydis_site/apps/staff/templatetags/__init__.py
@@ -0,0 +1,3 @@
+from .deletedmessage_filters import footer_datetime, hex_colour
+
+__all__ = ["hex_colour", "footer_datetime"]
diff --git a/pydis_site/apps/staff/templatetags/deletedmessage_filters.py b/pydis_site/apps/staff/templatetags/deletedmessage_filters.py
new file mode 100644
index 00000000..f950870f
--- /dev/null
+++ b/pydis_site/apps/staff/templatetags/deletedmessage_filters.py
@@ -0,0 +1,17 @@
+from datetime import datetime
+
+from django import template
+
+register = template.Library()
+
+
+[email protected]
+def hex_colour(color: int) -> str:
+    """Converts an integer representation of a colour to the RGB hex value."""
+    return f"#{color:0>6X}"
+
+
+[email protected]
+def footer_datetime(timestamp: str) -> datetime:
+    """Takes an embed timestamp and returns a timezone-aware datetime object."""
+    return datetime.fromisoformat(timestamp)
diff --git a/pydis_site/apps/staff/tests/__init__.py b/pydis_site/apps/staff/tests/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/pydis_site/apps/staff/tests/__init__.py
diff --git a/pydis_site/apps/staff/tests/test_deletedmessage_filters.py b/pydis_site/apps/staff/tests/test_deletedmessage_filters.py
new file mode 100644
index 00000000..d9179044
--- /dev/null
+++ b/pydis_site/apps/staff/tests/test_deletedmessage_filters.py
@@ -0,0 +1,33 @@
+import enum
+
+from django.test import TestCase
+from django.utils import timezone
+
+from ..templatetags import deletedmessage_filters
+
+
+class Colour(enum.IntEnum):
+    """Enumeration of integer colour values for readability."""
+
+    BLACK = 0
+    BLUE = 255
+    GREEN = 65280
+    RED = 16711680
+    WHITE = 16777215
+
+
+class DeletedMessageFilterTests(TestCase):
+    def test_hex_colour_filter(self):
+        self.assertEqual(deletedmessage_filters.hex_colour(Colour.BLACK), "#000000")
+        self.assertEqual(deletedmessage_filters.hex_colour(Colour.BLUE), "#0000FF")
+        self.assertEqual(deletedmessage_filters.hex_colour(Colour.GREEN), "#00FF00")
+        self.assertEqual(deletedmessage_filters.hex_colour(Colour.RED), "#FF0000")
+        self.assertEqual(deletedmessage_filters.hex_colour(Colour.WHITE), "#FFFFFF")
+
+    def test_footer_datetime_filter(self):
+        datetime_aware = timezone.now()
+        iso_string = datetime_aware.isoformat()
+
+        datetime_returned = deletedmessage_filters.footer_datetime(iso_string)
+        self.assertTrue(timezone.is_aware(datetime_returned))
+        self.assertEqual(datetime_aware, datetime_returned)
diff --git a/pydis_site/apps/staff/tests/test_logs_view.py b/pydis_site/apps/staff/tests/test_logs_view.py
new file mode 100644
index 00000000..32cb6bbf
--- /dev/null
+++ b/pydis_site/apps/staff/tests/test_logs_view.py
@@ -0,0 +1,160 @@
+from django.test import Client, TestCase
+from django.utils import timezone
+from django_hosts.resolvers import reverse, reverse_host
+
+from pydis_site.apps.api.models.bot import DeletedMessage, MessageDeletionContext, Role, User
+from pydis_site.apps.staff.templatetags.deletedmessage_filters import hex_colour
+
+
+class TestLogsView(TestCase):
+    @classmethod
+    def setUpTestData(cls):
+        cls.developers_role = Role.objects.create(
+            id=12345678,
+            name="Developers",
+            colour=16777215,
+            permissions=104324673,
+            position=1,
+        )
+
+        cls.author = cls.actor = User.objects.create(
+            id=12345678901,
+            name='Alan Turing',
+            discriminator=1912,
+            avatar_hash=None
+        )
+
+        cls.author.roles.add(cls.developers_role)
+
+        cls.deletion_context = MessageDeletionContext.objects.create(
+            actor=cls.actor,
+            creation=timezone.now()
+        )
+
+        cls.deleted_message_one = DeletedMessage.objects.create(
+            author=cls.author,
+            id=614125807161573397,
+            channel_id=1984,
+            content='<em>I think my tape has run out...</em>',
+            embeds=[],
+            deletion_context=cls.deletion_context,
+        )
+
+        cls.embed_one = {
+            "footer": {
+                "text": "This will be displayed in the footer!",
+                "icon_url": "https://avatars0.githubusercontent.com/u/33516116?s=460&v=4"
+            },
+            "image": {
+                "url": "https://avatars0.githubusercontent.com/u/33516116?s=460&v=4"
+            },
+            "thumbnail": {
+                "url": "https://avatars0.githubusercontent.com/u/33516116?s=460&v=4"
+            },
+            "author": {
+                "name": "Ves Zappa",
+                "url": "https://pydis.com",
+                "icon_url": "https://avatars0.githubusercontent.com/u/33516116?s=460&v=4"
+            },
+            "fields": [
+                {
+                    "inline": False,
+                    "name": "Field Name 1",
+                    "value": "Field Value 1"
+                },
+                {
+                    "inline": False,
+                    "name": "Field Name 2",
+                    "value": "Field Value 2"
+                },
+                {
+                    "inline": True,
+                    "name": "Field Name 3",
+                    "value": "Field Value 3"
+                },
+                {
+                    "inline": True,
+                    "name": "Field Name 4",
+                    "value": "Field Value 4"
+                },
+                {
+                    "inline": True,
+                    "name": "Field Name 5",
+                    "value": "Field Value 5"
+                }
+            ],
+            "color": 16711680,
+            "timestamp": "2019-08-21T13:58:34.480053+00:00",
+            "type": "rich",
+            "description": "This embed is way too cool to be seen in public channels.",
+            "url": "https://pythondiscord.com/",
+            "title": "Hello, PyDis"
+        }
+
+        cls.embed_two = {
+            "description": "This embed is way too cool to be seen in public channels.",
+        }
+
+        cls.deleted_message_two = DeletedMessage.objects.create(
+            author=cls.author,
+            id=614444836291870750,
+            channel_id=1984,
+            content='Does that mean this thing will halt?',
+            embeds=[cls.embed_one, cls.embed_two],
+            deletion_context=cls.deletion_context,
+        )
+
+    def setUp(self):
+        """Sets up a test client that automatically sets the correct HOST header."""
+        self.client = Client(HTTP_HOST=reverse_host(host="staff"))
+
+    def test_logs_returns_200_for_existing_logs_pk(self):
+        url = reverse('logs', host="staff", args=(self.deletion_context.id,))
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 200)
+
+    def test_logs_returns_404_for_nonexisting_logs_pk(self):
+        url = reverse('logs', host="staff", args=(self.deletion_context.id + 100,))
+        response = self.client.get(url)
+        self.assertEqual(response.status_code, 404)
+
+    def test_author_color_is_set_in_response(self):
+        url = reverse('logs', host="staff", args=(self.deletion_context.id,))
+        response = self.client.get(url)
+        role_colour = hex_colour(self.developers_role.colour)
+        html_needle = (
+            f'<span class="discord-username" style="color: {role_colour}">{self.author}</span>'
+        )
+        self.assertInHTML(html_needle, response.content.decode())
+
+    def test_correct_messages_have_been_passed_to_template(self):
+        url = reverse('logs', host="staff", args=(self.deletion_context.id,))
+        response = self.client.get(url)
+        self.assertIn("messages", response.context)
+        self.assertListEqual(
+            [self.deleted_message_one, self.deleted_message_two],
+            list(response.context["deletion_context"].deletedmessage_set.all())
+        )
+
+    def test_if_both_embeds_are_included_html_response(self):
+        url = reverse('logs', host="staff", args=(self.deletion_context.id,))
+        response = self.client.get(url)
+
+        html_response = response.content.decode()
+        embed_colour_needle = (
+            '<div class="discord-embed-color" style="background-color: {colour}"></div>'
+        )
+        embed_one_colour = hex_colour(self.embed_one["color"])
+        embed_two_colour = "#cacbce"
+        self.assertInHTML(embed_colour_needle.format(colour=embed_one_colour), html_response)
+        self.assertInHTML(embed_colour_needle.format(colour=embed_two_colour), html_response)
+
+    def test_if_html_in_content_is_properly_escaped(self):
+        url = reverse('logs', host="staff", args=(self.deletion_context.id,))
+        response = self.client.get(url)
+
+        html_response = response.content.decode()
+        unescaped_content = "<em>I think my tape has run out...</em>"
+        self.assertInHTML(unescaped_content, html_response, count=0)
+        escaped_content = "&lt;em&gt;I think my tape has run out...&lt;/em&gt;"
+        self.assertInHTML(escaped_content, html_response, count=1)
diff --git a/pydis_site/apps/staff/urls.py b/pydis_site/apps/staff/urls.py
new file mode 100644
index 00000000..a564d516
--- /dev/null
+++ b/pydis_site/apps/staff/urls.py
@@ -0,0 +1,10 @@
+from django.conf import settings
+from django.conf.urls.static import static
+from django.urls import path
+
+from .viewsets import LogView
+
+app_name = 'staff'
+urlpatterns = [
+    path('bot/logs/<int:pk>/', LogView.as_view(), name="logs"),
+] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
diff --git a/pydis_site/apps/staff/viewsets/__init__.py b/pydis_site/apps/staff/viewsets/__init__.py
new file mode 100644
index 00000000..6b10eb83
--- /dev/null
+++ b/pydis_site/apps/staff/viewsets/__init__.py
@@ -0,0 +1,3 @@
+from .logs import LogView
+
+__all__ = ["LogView"]
diff --git a/pydis_site/apps/staff/viewsets/logs.py b/pydis_site/apps/staff/viewsets/logs.py
new file mode 100644
index 00000000..22dede95
--- /dev/null
+++ b/pydis_site/apps/staff/viewsets/logs.py
@@ -0,0 +1,11 @@
+from django.views.generic.detail import DetailView
+
+from pydis_site.apps.api.models.bot.message_deletion_context import MessageDeletionContext
+
+
+class LogView(DetailView):
+    """The default view for the Deleted Messages logs."""
+
+    model = MessageDeletionContext
+    context_object_name = "deletion_context"
+    template_name = "staff/logs.html"