[client] Add media content observable

Author: SamuelHassine

pycti/__init__.py

@@ -63,6 +63,7 @@
     CustomObservableText,
     CustomObservableTrackingNumber,
     CustomObservableUserAgent,
+    CustomObservableMediaContent,
     MultipleRefRelationship,
     StixCyberObservableTypes,
     StixMetaTypes,
@@ -144,6 +145,7 @@
     "CustomObservablePhoneNumber",
     "CustomObservableTrackingNumber",
     "CustomObservableText",
+    "CustomObservableMediaContent",
     "STIX_EXT_MITRE",
     "STIX_EXT_OCTI_SCO",
     "STIX_EXT_OCTI",

pycti/utils/constants.py

@@ -429,3 +429,28 @@ class CustomObservableUserAgent:
     """User-Agent observable."""
 
     pass
+
+
+@CustomObservable(
+    "media-content",
+    [
+        ("title", StringProperty()),
+        ("description", StringProperty()),
+        ("content", StringProperty()),
+        ("media_category", StringProperty()),
+        ("url", StringProperty(required=True)),
+        ("publication_date", TimestampProperty()),
+        ("spec_version", StringProperty(fixed="2.1")),
+        (
+            "object_marking_refs",
+            ListProperty(
+                ReferenceProperty(valid_types="marking-definition", spec_version="2.1")
+            ),
+        ),
+    ],
+    ["url"],
+)
+class CustomObservableMediaContent:
+    """Media-Content observable."""
+
+    pass