113 lines
3.3 KiB
Python
113 lines
3.3 KiB
Python
from fastapi import FastAPI, Depends, Request, Path
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from fastapi.middleware.cors import CORSMiddleware
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from fastapi.responses import RedirectResponse, JSONResponse
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from fastapi.templating import Jinja2Templates
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from app.routes.auth_routes import router as auth_router
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from app.routes.links_routes import router as links_router
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from app.routes.user_routes import router as user_router
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from typing import Annotated, Union
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from fastapi.exceptions import HTTPException
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from starlette.status import HTTP_404_NOT_FOUND
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from app.util.authentication import get_current_user
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from app.util.db_dependency import get_db
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from app.util.log import log
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from app.schemas.auth_schemas import User
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from models import Link
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app = FastAPI(
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title="LinkLogger API",
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version="2.0",
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summary="Public API for a combined link shortener and IP logger",
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license_info={
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"name": "The Unlicense",
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"identifier": "Unlicense",
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"url": "https://unlicense.org",
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},
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)
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app.add_middleware(
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CORSMiddleware,
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allow_origins=["*"],
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allow_methods=["*"],
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allow_headers=["*"],
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allow_credentials=True,
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)
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templates = Jinja2Templates(directory="app/templates")
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# Import routes
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app.include_router(auth_router, prefix="/api")
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app.include_router(links_router, prefix="/api")
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app.include_router(user_router, prefix="/api")
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@app.get("/login")
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async def login(request: Request):
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return templates.TemplateResponse("login.html", {"request": request})
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@app.get("/signup")
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async def signup(request: Request):
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return templates.TemplateResponse("signup.html", {"request": request})
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@app.get("/dashboard")
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async def dashboard(
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request: Request,
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response: Union[User, RedirectResponse] = Depends(get_current_user),
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):
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if isinstance(response, RedirectResponse):
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return response
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return templates.TemplateResponse(
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"dashboard.html", {"request": request, "user": response.username}
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)
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@app.get("/c/{link}")
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async def log_redirect(
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link: Annotated[str, Path(title="Redirect link")],
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request: Request,
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db=Depends(get_db),
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):
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link = link.upper()
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# Links must be 5 characters long
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if len(link) != 5:
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return RedirectResponse(url="/login")
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# Make sure the link exists in the database
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link_record: Link = db.query(Link).filter(Link.link == link).first()
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if not link_record:
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db.close()
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return RedirectResponse(url="/login")
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else:
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# Get the IP and log the request
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if request.headers.get("X-Real-IP"):
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ip = request.headers.get("X-Real-IP").split(",")[0]
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else:
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ip = request.client.host
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user_agent = request.headers.get("User-Agent")
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log(link, ip, user_agent)
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db.close()
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return RedirectResponse(url=link_record.redirect_link)
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# Redirect /api -> /api/docs
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@app.get("/api")
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async def redirect_to_docs():
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return RedirectResponse(url="/docs")
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# Custom handler for 404 errors
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@app.exception_handler(HTTP_404_NOT_FOUND)
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async def custom_404_handler(request: Request, exc: HTTPException):
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# If the request is from /api, return a JSON response
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if request.url.path.startswith("/api"):
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return JSONResponse(
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status_code=404,
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content={"message": "Resource not found"},
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)
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# Otherwise, redirect to the login page
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return RedirectResponse(url="/login")
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