Enable E2EE message parsing

Dockerfile

@@ -1,20 +1,25 @@
 FROM python:3.12-slim
 
-# Prevent Python from writing .pyc files and buffer stdout/stderr for clean logging
 ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1
 
 WORKDIR /app
 
-# Install dependencies first to leverage Docker layer caching
+# Install libolm C library and build dependencies for E2E crypto bindings
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libolm-dev \
+    gcc \
+    python3-dev \
+    && rm -rf /var/lib/apt/lists/*
+
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Copy application source code
 COPY matrix_keycloak_bot.py .
 
-# Security best practice: run as a non-root user
+# Create the store directory for Olm/Megolm key databases
 RUN useradd -m -u 10001 botuser && \
+    mkdir -p /app/store && \
     chown -R botuser:botuser /app
 
 USER botuser

matrix_keycloak_bot.py

@@ -241,7 +241,11 @@ async def on_reaction(client: AsyncClient, room: MatrixRoom, event: ReactionEven
 # Main Event Loop
 # ------------------------------------------------------------------------------
 async def main():
-    client = AsyncClient(MATRIX_HOMESERVER, MATRIX_BOT_USER)
+    client = AsyncClient(
+        MATRIX_HOMESERVER, 
+        MATRIX_BOT_USER, 
+        store_path="/app/store"
+    )
 
     # Register callbacks
     client.add_event_callback(

requirements.txt

@@ -1,2 +1,2 @@
-matrix-nio>=0.24.0
+matrix-nio[e2e]>=0.24.0
 python-keycloak>=4.0.0