Add python server

Author: malte-hansen

Dockerfile

@@ -1,43 +1,49 @@
 # Start from an Ubuntu base
 FROM ubuntu:22.04
 
+# --- SRCML SETUP ---
+
 # Set non-interactive mode for apt
 ENV DEBIAN_FRONTEND=noninteractive
 
-# Install required packages
+# Install required packages (incl. Python for server)
 RUN apt-get update && \
     apt-get install -y \
     curl zip g++ make ninja-build antlr libantlr-dev \
     libxml2-dev libxml2-utils libxslt1-dev \
     libarchive-dev libssl-dev libcurl4-openssl-dev \
     cpio man file dpkg-dev \
-    cmake && \
+    cmake python3 python3-pip && \
     rm -rf /var/lib/apt/lists/*
 
 # Add srcML include files
 RUN curl -L http://www.sdml.cs.kent.edu/build/srcML-1.0.0-Boost.tar.gz | \
     tar xz -C /usr/local/include
 
-# Create build directory
 RUN mkdir -p /srcml/build
 
-# Copy your source code into the container (update `.` as needed)
 COPY ./srcml /srcml
 
-# Set working directory
 WORKDIR /srcml/build
 
-# Configure and build using CMake and Ninja
 RUN cmake .. -G Ninja && \
     cmake --build . --config Release --target install
 
-# Set ldconfig so installed libs are available
+# Set ldconfig so installed libs are linked and available
 RUN ldconfig
 
-# Validate srcML works (can be used in entrypoint or test phase)
-RUN srcml --version && \
-    srcml --text="int a;" -l C++
+# --- SERVER SETUP ---
+
+# Install Python packages for server
+RUN pip3 install fastapi uvicorn python-multipart
+
+# Add FastAPI server app
+COPY ./server/server.py /app/server.py
+WORKDIR /app
+
+# Expose port
+EXPOSE 8000
 
-# Default command (can be overridden)
-ENTRYPOINT [ "srcml" ]
+# Start FastAPI server
+CMD ["uvicorn", "server:app", "--port", "8000"]
 

server/requirements.txt

@@ -0,0 +1,3 @@
+fastapi
+uvicorn
+python-multipart

server/server.py

@@ -0,0 +1,35 @@
+from fastapi import FastAPI, HTTPException
+from pydantic import BaseModel
+from fastapi.responses import PlainTextResponse
+import subprocess
+import tempfile
+import os
+
+app = FastAPI()
+
+class CodeInput(BaseModel):
+    code: str
+    language: str = "C++"
+
+@app.post("/parse")
+async def convert_to_srcml(input_data: CodeInput):
+    # Create a temporary file to write the source code into
+    with tempfile.NamedTemporaryFile(delete=False, suffix=".txt") as tmp:
+        tmp.write(input_data.code.encode("utf-8"))
+        tmp_path = tmp.name
+
+    try:
+        # Run srcml with the temporary file
+        result = subprocess.run(
+            ["srcml", tmp_path, "--language", input_data.language],
+            capture_output=True,
+            text=True,
+            check=True
+        )
+        return PlainTextResponse(result.stdout, media_type="application/xml")
+
+    except subprocess.CalledProcessError as e:
+        raise HTTPException(status_code=500, detail=f"srcml error: {e.stderr.strip()}")
+
+    finally:
+        os.remove(tmp_path)