Merge pull request #13 from shadab-mohammad-oracle/patch-4

Create main.py

Author: shadabshaukat

app/main.py

@@ -0,0 +1,98 @@
+from fastapi import FastAPI, Request, Form, status, Depends
+from fastapi.responses import HTMLResponse, JSONResponse
+from fastapi.templating import Jinja2Templates
+from fastapi.staticfiles import StaticFiles
+from fastapi.security import HTTPBasic, HTTPBasicCredentials
+import secrets
+
+from . import dbtools
+
+app = FastAPI(title="DB Endpoint Latency Tester", docs_url="/docs", redoc_url=None)
+
+security = HTTPBasic()
+templates = Jinja2Templates(directory="app/templates")
+app.mount("/static", StaticFiles(directory="app/static"), name="static")
+
+USERNAME = "admin"
+PASSWORD = "change_this"  # Set a strong secret in prod
+
+def get_current_user(credentials: HTTPBasicCredentials = Depends(security)):
+    correct_username = secrets.compare_digest(credentials.username, USERNAME)
+    correct_password = secrets.compare_digest(credentials.password, PASSWORD)
+    if not (correct_username and correct_password):
+        raise JSONResponse(status_code=status.HTTP_401_UNAUTHORIZED, content={"detail": "Invalid credentials"})
+    return credentials.username
+
+@app.get("/", response_class=HTMLResponse)
+def form(request: Request, user: str = Depends(get_current_user)):
+    # No results on initial GET
+    return templates.TemplateResponse("index.html", {"request": request, "user": user, "result": None})
+
+@app.post("/test-latency", response_class=HTMLResponse)
+def test_latency(
+    request: Request,
+    dbtype: str = Form(...),
+    host: str = Form(""),
+    port: str = Form(""),
+    username: str = Form(""),
+    password: str = Form(""),
+    database: str = Form(""),
+    url: str = Form(""),
+    interval: float = Form(1.0),
+    period: int = Form(10),
+    user: str = Depends(get_current_user)
+):
+    # All credentials are held transiently only for test run
+    result = dbtools.run_latency_test(
+        dbtype=dbtype,
+        host=host,
+        port=port,
+        username=username,
+        password=password,
+        database=database,
+        url=url,
+        interval=interval,
+        period=period
+    )
+    # Render index.html with results below
+    return templates.TemplateResponse("index.html", {
+        "request": request,
+        "user": user,
+        "result": result,
+        "dbtype": dbtype,
+        "host": host,
+        "port": port,
+        "username": username,
+        "database": database,
+        "url": url,
+        "interval": interval,
+        "period": period
+    })
+
+@app.post("/api/test-latency")
+def api_test_latency(
+    dbtype: str,
+    host: str = "",
+    port: str = "",
+    username: str = "",
+    password: str = "",
+    database: str = "",
+    url: str = "",
+    interval: float = 1.0,
+    period: int = 10,
+    credentials: HTTPBasicCredentials = Depends(security)
+):
+    # For API/CLI use -- returns result JSON
+    get_current_user(credentials)
+    result = dbtools.run_latency_test(
+        dbtype=dbtype,
+        host=host,
+        port=port,
+        username=username,
+        password=password,
+        database=database,
+        url=url,
+        interval=interval,
+        period=period
+    )
+    return JSONResponse(result)