from fastapi import FastAPI, Depends from fastapi.security import OAuth2PasswordBearer import requests from jose import jwt import webbrowser import base64 app = FastAPI() oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token") # Replace these with your own values from the Google Developer Console GOOGLE_CLIENT_ID = "" GOOGLE_CLIENT_SECRET = "" GOOGLE_REDIRECT_URI = "" @app.get("/login/google") async def login_google(): # oauth_url = f"https://accounts.google.com/o/oauth2/auth?response_type=code&client_id={GOOGLE_CLIENT_ID}&redirect_uri={GOOGLE_REDIRECT_URI}&scope=openid%20profile%20email&access_type=offline" #Below is the URL to prompt the user to login to his specified gmail account and also give a readonly access to his gmail oauth_url = f"https://accounts.google.com/o/oauth2/auth?response_type=code&client_id={GOOGLE_CLIENT_ID}&redirect_uri={GOOGLE_REDIRECT_URI}&scope=openid%20profile%20email%20https://www.googleapis.com/auth/gmail.readonly&access_type=offline" # webbrowser.open(oauth_url) return { "url": f"https://accounts.google.com/o/oauth2/auth?response_type=code&client_id={GOOGLE_CLIENT_ID}&redirect_uri={GOOGLE_REDIRECT_URI}&scope=openid%20profile%20email&access_type=offline" } @app.get("/auth/google") async def auth_google(code: str): #This code is basically the authorization code and this authorization code helps us to get the access token with the required scopes that we have set . #We require the gmail.readonly scopes that requires verification of our application and all. token_url = "https://accounts.google.com/o/oauth2/token" print(code) data = { "code": code, "client_id": GOOGLE_CLIENT_ID, "client_secret": GOOGLE_CLIENT_SECRET, "redirect_uri": GOOGLE_REDIRECT_URI, "grant_type": "authorization_code", } response = requests.post(token_url, data=data) access_token = response.json().get("access_token") print(response.json()) user_info = requests.get("https://www.googleapis.com/oauth2/v1/userinfo", headers={"Authorization": f"Bearer {access_token}"}) jobs_query = "subject:New application:ios" gmail_url = f"https://www.googleapis.com/gmail/v1/users/me/messages?q={jobs_query}&maxResults=110" gmail_response = requests.get(gmail_url, headers={"Authorization": f"Bearer {access_token}"}) messages = gmail_response.json().get("messages", []) print(messages) print("Printing gmail response") print(gmail_response.json()) # Fetch attachments from the first message attachments = [] for i,message in enumerate(messages) : print(i) print(message) if message: message_id = message.get("id") print(message_id) if message_id: message_url = f"https://www.googleapis.com/gmail/v1/users/me/messages/{message_id}" message_response = requests.get(message_url, headers={"Authorization": f"Bearer {access_token}"}) message_data = message_response.json() # Check for parts in the message payload if "payload" in message_data and "parts" in message_data["payload"]: for part in message_data["payload"]["parts"]: if "body" in part and "attachmentId" in part["body"]: attachment_id = part["body"]["attachmentId"] attachment_url = f"https://www.googleapis.com/gmail/v1/users/me/messages/{message_id}/attachments/{attachment_id}" attachment_response = requests.get(attachment_url, headers={"Authorization": f"Bearer {access_token}"}) attachment_data = attachment_response.json() data = attachment_data.get("data") filename = part.get("filename", "untitled.txt") if data: # Decode base64-encoded attachment data attachment_content = base64.urlsafe_b64decode(data.encode("UTF-8")) # Save the attachment to a file save_path = f"/Users/omkarmalpure/Documents/Gmail_API/attachments/{filename}" with open(save_path, "wb") as file: file.write(attachment_content) attachments.append(save_path) print(attachments) print(len(attachments)) return user_info.json() @app.get("/token") async def get_token(token: str = Depends(oauth2_scheme)): return jwt.decode(token, GOOGLE_CLIENT_SECRET, algorithms=["HS256"]) # if __name__ == "__main__": # import uvicorn # uvicorn.run(app, host="0.0.0.0", port=8000)