Files
oci_tips/GenAI/proxy/app.py
Marcos Lohmann 737c343439 Create app.py
2025-06-30 09:56:58 -03:00

121 lines
4.3 KiB
Python

from flask import Flask, request, jsonify
import oci
import requests
app = Flask(__name__)
# Função para carregar configurações do arquivo
def load_config(config_file="/home/app/credentials.conf"):
config = {}
try:
with open(config_file, 'r') as f:
for line in f:
line = line.strip()
if line and not line.startswith('#'): # Ignora linhas vazias e comentários
key, value = line.split('=', 1)
config[key.strip()] = value.strip()
return config
except FileNotFoundError:
raise FileNotFoundError(f"Arquivo de configuração '{config_file}' não encontrado")
except Exception as e:
raise Exception(f"Erro ao carregar configuração: {str(e)}")
# Carrega configuração do arquivo
config = load_config()
# Modo de teste (define se deve usar credenciais reais ou simuladas)
TEST_MODE = config.get("test_mode", "false").lower() == "true"
# Cria o signer do OCI (apenas se não estiver em modo de teste)
signer = None
if not TEST_MODE:
try:
signer = oci.signer.Signer(
tenancy=config.get("tenancy"),
user=config.get("user"),
fingerprint=config.get("fingerprint"),
private_key_file_location=config.get("key_file"),
pass_phrase=config.get("pass_phrase"),
private_key_content=config.get("key_content"),
)
except Exception as e:
print(f"Erro ao inicializar signer OCI: {e}")
print("Executando em modo de teste...")
TEST_MODE = True
# Funções de interação com o agente (adaptadas do agent_proxy.py)
def new_session_agent(region, agent_endpoint_id):
if TEST_MODE:
# Retorna uma resposta simulada em modo de teste
return {"id": f"test_session_{agent_endpoint_id[:8]}"}
session = requests.Session()
session.auth = signer
url = (
f"https://agent-runtime.generativeai.{region}.oci.oraclecloud.com/20240531/agentEndpoints/{agent_endpoint_id}/sessions"
)
payload = {
"description": "",
"displayName": "",
"idleTimeoutInSeconds": "1200"
}
resp = session.post(url, json=payload)
resp.raise_for_status() # Levanta um erro para status codes 4xx/5xx
return resp.json()
def ask_agent(region, agent_endpoint_id, session_id, user_message):
if TEST_MODE:
# Retorna uma resposta simulada em modo de teste
return {
"message": f"Resposta simulada para: {user_message}",
"sessionId": session_id,
"timestamp": "2024-01-01T00:00:00Z"
}
session = requests.Session()
session.auth = signer
base_url = f"https://agent-runtime.generativeai.{region}.oci.oraclecloud.com/20240531"
chat_url = f"{base_url}/agentEndpoints/{agent_endpoint_id}/actions/chat"
payload = {
"userMessage": user_message,
"shouldStream": False,
"sessionId": session_id
}
response = session.post(chat_url, json=payload)
response.raise_for_status() # Levanta um erro para status codes 4xx/5xx
return response.json()
# Endpoint para teste
@app.route("/", methods=["GET"])
def test():
return jsonify({"test":"ok"})
# Endpoint para criar nova sessão
@app.route("/genai-agent/<region>/<agent_endpoint_id>/new-session", methods=["GET"])
def new_session(region, agent_endpoint_id):
try:
response_data = new_session_agent(region, agent_endpoint_id)
return jsonify({"sessionId": response_data.get("id")})
except requests.exceptions.RequestException as e:
print(str(e))
return jsonify({"error": str(e)}), 400
# Endpoint para chat com o agente
@app.route("/genai-agent/<region>/<agent_endpoint_id>/<session_id>/chat", methods=["POST"])
def agent_chat(region, agent_endpoint_id, session_id):
data = request.get_json()
user_message = data.get("userMessage")
if not all([user_message]):
print("missing userMessage")
return jsonify({"error": "userMessage é obrigatório"}), 400
try:
response_data = ask_agent(region, agent_endpoint_id, session_id, user_message)
return jsonify({"agentResponse": response_data})
except requests.exceptions.RequestException as e:
print(str(e))
return jsonify({"error": str(e)}), 400
if __name__ == '__main__':
app.run(host='0.0.0.0', port=8000)