Enhance Dockerfile for protocol analyzer: add debug checks for nDPI installation and update include paths

Dockerfile

@@ -16,11 +16,14 @@ RUN apt-get update && apt-get install -y \
     libtool \
     && rm -rf /var/lib/apt/lists/*
 
-# Build and install nDPI
+# Try to install nDPI from package manager first
+RUN apt-get update && apt-get install -y libndpi-dev || echo "Package not available"
+
+# Build and install nDPI from source as fallback
 RUN git clone https://github.com/ntop/nDPI.git /tmp/nDPI && \
     cd /tmp/nDPI && \
     ./autogen.sh && \
-    ./configure --with-pic && \
+    ./configure --prefix=/usr/local && \
     make && \
     make install && \
     ldconfig && \
@@ -39,11 +42,18 @@ COPY lib/ ./lib/
 COPY protocol_analyzer.c ./
 
 # Debug: Check what nDPI installed
-RUN find /usr -name "*ndpi*" -type f 2>/dev/null | head -10
-RUN find /usr -name "*.h" -path "*ndpi*" 2>/dev/null | head -10
+RUN echo "=== Searching for nDPI files ===" && \
+    find /usr -name "*ndpi*" -type f 2>/dev/null | head -20 && \
+    echo "=== Searching for nDPI headers ===" && \
+    find /usr -name "ndpi_api.h" 2>/dev/null && \
+    echo "=== Checking pkg-config ===" && \
+    pkg-config --cflags libndpi 2>/dev/null || echo "pkg-config failed"
 
-# Compile the C protocol analyzer
-RUN gcc -o protocol_analyzer protocol_analyzer.c -I/usr/local/include -I/usr/local/include/libndpi-4.8.0/libndpi -L/usr/local/lib -lndpi -lpcap
+# Try multiple compilation approaches
+RUN (gcc -o protocol_analyzer protocol_analyzer.c $(pkg-config --cflags --libs libndpi) -lpcap) || \
+    (gcc -o protocol_analyzer protocol_analyzer.c -I/usr/local/include -L/usr/local/lib -lndpi -lpcap) || \
+    (gcc -o protocol_analyzer protocol_analyzer.c -I/usr/include -L/usr/lib -lndpi -lpcap) || \
+    echo "All compilation attempts failed"
 
 # Compile the application
 RUN dart compile exe lib/main.dart -o waylume_server