Added LogViewer

LogViewer/LogViewer.py

@@ -0,0 +1,51 @@
+import streamlit as st
+import json
+import base64
+
+def is_base64(s):
+    """Check if a string is Base64-encoded."""
+    try:
+        decoded = base64.b64decode(s, validate=True)
+        return decoded.decode("utf-8") if decoded else None
+    except (base64.binascii.Error, UnicodeDecodeError):
+        return None
+
+def process_logs(file):
+    """Reads the file, parses JSON, and decodes Base64 fields if found."""
+    logs = []
+    for line in file:
+        try:
+            log_entry = json.loads(line.decode("utf-8").strip())  # Decode and parse JSON
+            # Scan each key in the log entry to detect Base64-encoded values
+            for key, value in log_entry.items():
+                if isinstance(value, str):
+                    decoded_value = is_base64(value)
+                    if decoded_value:
+                        log_entry[key] = f"(Decoded) {decoded_value}"  # Replace with decoded value
+            logs.append(log_entry)
+        except json.JSONDecodeError as e:
+            st.error(f"Error decoding JSON: {e}")
+    return logs
+
+# Streamlit UI
+st.title("SSH Log Viewer with Base64 Decoding 🔍")
+
+uploaded_file = st.file_uploader("Upload SSH Log JSON file", type=["log", "json"])
+
+if uploaded_file is not None:
+    st.success("File uploaded successfully! 📂")
+    
+    logs = process_logs(uploaded_file)  # Process file and decode Base64
+    
+    # Display logs
+    st.subheader("Formatted JSON Logs")
+    st.json(logs, expanded=False)  # Show JSON in a collapsible section
+
+    # Table view
+    if logs:
+        st.subheader("Log Table View")
+        st.dataframe(logs)  # Display structured logs in a table
+
+else:
+    st.info("Please upload a JSON log file to view the logs.")
+