[python] Add FastPySGI server (WSGI)

Author: remittor

src/Servers/FastPySGI-Server/Dockerfile

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+FROM python:3.12-slim
+WORKDIR /app
+RUN pip install --no-cache-dir fastpysgi
+COPY src/Servers/FastPySGI-Server/app.py .
+ENTRYPOINT ["python3", "app.py", "8080"]

src/Servers/FastPySGI-Server/app.py

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+import fastpysgi
+
+def app(environ, start_response):
+    path = environ["PATH_INFO"]
+    req_method = environ.get('REQUEST_METHOD', '')
+
+    if path == '/cookie':
+        cookie_str = environ.get('HTTP_COOKIE', '')
+        lines = [ ]
+        for pair in cookie_str.split(';'):
+            pair = pair.strip()
+            eq = pair.find('=')
+            if eq > 0:
+                lines.append(f"{pair[:eq]}={pair[eq+1:]}")
+        body = '\n'.join(lines) + '\n' if lines else ''
+        start_response('200 OK', [ ('Content-Type', 'text/plain') ])
+        return [ body.encode() ] 
+
+    if path == '/echo':
+        lines = [ ]
+        for key, value in environ.items():
+            header_name = None
+            if key.startswith('HTTP_'):
+                header_name = key[5:]
+            if key == 'CONTENT_TYPE':
+                header_name = 'Content-Type'
+            if key == 'CONTENT_LENGTH':
+                header_name = 'Content-Length'
+            if header_name:
+                header_name = header_name.replace('_', '-').title()
+                lines.append(f"{header_name}: {value}")
+        body = '\n'.join(lines) + '\n'
+        start_response('200 OK', [ ('Content-Type', 'text/plain') ])
+        return [ body.encode() ]
+
+    if req_method == 'POST':
+        try:
+            length = int(environ.get('CONTENT_LENGTH', 0) or 0)
+        except ValueError:
+            length = 0
+        body = environ['wsgi.input'].read(length) if length > 0 else b''
+        start_response('200 OK', [ ('Content-Type', 'text/plain') ])
+        return [ body ]
+
+    start_response('200 OK', [ ('Content-Type', 'text/plain') ])
+    return [ b'OK' ]
+
+if __name__ == "__main__":
+    import sys
+    port = int(sys.argv[1]) if len(sys.argv) > 1 else 8080
+    fastpysgi.run(app, host="0.0.0.0", port=port, loglevel=0)

src/Servers/FastPySGI-Server/probe.json

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+{
+    "name": "FastPySGI",
+    "language": "Python"
+}