Update app.py
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app.py
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import gradio as gr
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import subprocess, tempfile, os, uuid, resource
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# ---------- utilidades ----------
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def _detect_c_language():
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"""
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Devuelve 'c' si está en la lista de lenguajes de gr.Code,
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o 'cpp' como fallback para versiones antiguas (<4.0).
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"""
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langs = getattr(gr.Code, "languages", [])
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return "c" if "c" in langs else "cpp"
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#
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def compile_and_run(code: str, stdin: str = "") -> str:
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"""
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Compila el código C, lo ejecuta
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"""
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c_path = os.path.join(tmpdir, "main.c")
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bin_path = os.path.join(tmpdir, "main")
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#
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with open(c_path, "w") as f:
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f.write(code)
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#
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compile_proc = subprocess.run(
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["gcc", c_path, "-O2", "-std=c11", "-pipe", "-o", bin_path],
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capture_output=True,
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)
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if compile_proc.returncode != 0:
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return f"❌ Error de compilación:\n{compile_proc.stderr}"
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#
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def limit_resources():
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resource.setrlimit(resource.RLIMIT_CPU, (2, 2))
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resource.setrlimit(resource.RLIMIT_AS, (128*1024*1024,
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128*1024*1024))
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# 5. Ejecutar binario generado
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try:
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run_proc = subprocess.run(
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[bin_path],
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input=stdin,
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text=True,
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capture_output=True,
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timeout=2,
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preexec_fn=limit_resources
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)
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except subprocess.TimeoutExpired:
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return "⏰ Tiempo de ejecución excedido (2 s)."
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title = "Compilador C online (42 Edition)"
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description =
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Ejecuta fragmentos de **lenguaje C** con límite de recursos
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demo = gr.Interface(
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fn
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inputs
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gr.Code(language=code_lang, label="Código C"),
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gr.Textbox(
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],
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outputs
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title
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description
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examples
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[
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[
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],
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)
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import gradio as gr
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import subprocess, tempfile, os, resource, shutil
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# ------------------------------------------------------------------
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# 1️⃣ Función que compila y ejecuta el código C
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# ------------------------------------------------------------------
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def compile_and_run(code: str, stdin: str = "") -> str:
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"""
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Compila el código C recibido, lo ejecuta con límites de
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recursos y devuelve stdout, stderr y exit-code.
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"""
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tmpdir = tempfile.mkdtemp(prefix="c_exec_")
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c_path = os.path.join(tmpdir, "main.c")
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bin_path = os.path.join(tmpdir, "main")
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# Guardar el código fuente
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with open(c_path, "w") as f:
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f.write(code)
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# Compilar
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compile_proc = subprocess.run(
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["gcc", c_path, "-O2", "-std=c11", "-pipe", "-o", bin_path],
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capture_output=True,
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text=True,
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timeout=10
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)
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if compile_proc.returncode != 0:
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shutil.rmtree(tmpdir, ignore_errors=True)
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return f"❌ Error de compilación:\n{compile_proc.stderr}"
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# Límites (CPU 2 s, RAM 128 MB)
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def limit_resources():
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resource.setrlimit(resource.RLIMIT_CPU, (2, 2))
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resource.setrlimit(resource.RLIMIT_AS, (128 * 1024 * 1024,
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128 * 1024 * 1024))
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try:
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run_proc = subprocess.run(
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[bin_path],
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input=stdin,
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text=True,
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capture_output=True,
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timeout=2,
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preexec_fn=limit_resources
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)
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except subprocess.TimeoutExpired:
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shutil.rmtree(tmpdir, ignore_errors=True)
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return "⏰ Tiempo de ejecución excedido (2 s)."
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stdout, stderr = run_proc.stdout, run_proc.stderr
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exit_code = run_proc.returncode
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shutil.rmtree(tmpdir, ignore_errors=True)
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result = f"⏹ Código de salida: {exit_code}\n"
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if stdout:
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result += f"\n📤 STDOUT\n{stdout}"
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if stderr:
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result += f"\n⚠️ STDERR\n{stderr}"
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return result.strip()
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# ------------------------------------------------------------------
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# 2️⃣ Detección automática del lenguaje para gr.Code
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# ('c' en Gradio ≥4, 'cpp' en Gradio 3)
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# ------------------------------------------------------------------
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def detect_c_language() -> str:
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langs = getattr(gr.Code, "languages", [])
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return "c" if "c" in langs else "cpp"
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code_lang = detect_c_language()
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# ------------------------------------------------------------------
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# 3️⃣ Construcción de la interfaz
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# ------------------------------------------------------------------
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title = "Compilador C online (42 Edition)"
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description = (
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"Ejecuta fragmentos de **lenguaje C** con límite de recursos.\n"
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"Disponible también como endpoint REST (`/run/predict`)."
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)
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demo = gr.Interface(
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fn=compile_and_run,
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inputs=[
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gr.Code(language=code_lang, label="Código C"),
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gr.Textbox(
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lines=3,
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placeholder="Entrada estándar (stdin)",
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label="Stdin (opcional)"
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),
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],
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outputs=gr.Textbox(label="Resultado"),
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title=title,
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description=description,
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examples=[
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["#include <stdio.h>\nint main(){puts(\"Hola 42!\");}", ""],
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["#include <stdio.h>\nint main(){int a,b;scanf(\"%d %d\",&a,&b);"
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"printf(\"%d\\n\",a+b);}", "3 4"],
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],
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)
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