from mega import Mega import os import requests import traceback from urllib .parse import urlparse ,urlunparse ,parse_qs ,urlencode try : import gdown GDOWN_AVAILABLE =True except ImportError : GDOWN_AVAILABLE =False def download_mega_file (mega_link ,download_path =".",logger_func =print ): """ Downloads a file from a public Mega.nz link. Args: mega_link (str): The public Mega.nz link to the file. download_path (str, optional): The directory to save the downloaded file. Defaults to the current directory. logger_func (callable, optional): Function to use for logging. Defaults to print. """ logger_func ("drive.py: download_mega_file called.") logger_func (f"drive.py: mega_link='{mega_link}', download_path='{download_path}'") logger_func ("drive.py: Initializing Mega client (Mega())...") try: mega_client = Mega() except Exception as e_init: logger_func(f"drive.py: ERROR during Mega() instantiation: {e_init}") traceback.print_exc() raise logger_func ("drive.py: Mega client initialized. Logging in anonymously (m.login())...") try: m = mega_client.login() except Exception as e_login: logger_func(f"drive.py: ERROR during m.login(): {e_login}") traceback.print_exc() raise logger_func ("drive.py: Logged in anonymously.") logger_func (f"drive.py: Attempting to download from: {mega_link }") try : if not os .path .exists (download_path ): logger_func (f"drive.py: Download path '{download_path }' does not exist. Creating it...") os .makedirs (download_path ,exist_ok =True ) logger_func (f"drive.py: Download path ensured: '{download_path }'") logger_func (f"drive.py: Calling m.download_url for '{mega_link }' to '{download_path }'...") # The download_url method returns the local file path of the downloaded file. # It takes dest_path (directory) and dest_filename (optional). # If dest_filename is None, it uses the name from get_public_url_info(). downloaded_file_path = m.download_url(mega_link, dest_path=download_path, dest_filename=None) logger_func(f"drive.py: m.download_url returned: {downloaded_file_path}") if downloaded_file_path and os.path.exists(downloaded_file_path): logger_func(f"drive.py: File downloaded successfully! Saved as: {downloaded_file_path}") # Optional: Verify size if possible, but get_public_url_info is another network call # and might be redundant or problematic if the download itself worked. elif downloaded_file_path: logger_func(f"drive.py: m.download_url returned a path '{downloaded_file_path}', but it does not exist on disk. Download may have failed silently or path is incorrect.") raise Exception(f"Mega download_url returned path '{downloaded_file_path}' which was not found.") else : logger_func ("drive.py: Download failed. m.download_url did not return a valid file path.") raise Exception ("Mega download_url did not return a file path or failed.") except PermissionError as e: logger_func(f"drive.py: PermissionError: {e}. Denied to write to '{download_path}'. Please check permissions.") raise except FileNotFoundError as e: logger_func(f"drive.py: FileNotFoundError: {e}. The path '{download_path}' is invalid.") raise except requests.exceptions.ConnectionError as e: # More specific for network logger_func(f"drive.py: requests.exceptions.ConnectionError: {e}. Network problem during Mega operation.") raise except requests.exceptions.RequestException as e: # General requests error logger_func(f"drive.py: requests.exceptions.RequestException: {e} during request to Mega.") raise except Exception as e: # Catch-all for other errors from mega.py or os calls logger_func(f"drive.py: An unexpected error occurred during Mega download: {e}") traceback.print_exc() # Print full traceback for unexpected errors raise def download_gdrive_file (gdrive_link ,download_path =".",logger_func =print ): """ Downloads a file from a public Google Drive link. Args: gdrive_link (str): The public Google Drive link to the file. download_path (str, optional): The directory to save the downloaded file. Defaults to the current directory. logger_func (callable, optional): Function to use for logging. Defaults to print. """ if not GDOWN_AVAILABLE : logger_func ("❌ Error: gdown library is not installed. Cannot download from Google Drive.") logger_func ("Please install it: pip install gdown") raise ImportError ("gdown library not found. Please install it: pip install gdown") logger_func (f"Attempting to download from Google Drive: {gdrive_link }") try : if not os .path .exists (download_path ): logger_func (f"Download path '{download_path }' does not exist. Creating it...") os .makedirs (download_path ,exist_ok =True ) logger_func (f"Starting Google Drive download to '{download_path }'...") output_file_path =gdown .download (gdrive_link ,output =download_path ,quiet =False ,fuzzy =True ) if output_file_path and os .path .exists (os .path .join (download_path ,os .path .basename (output_file_path ))): logger_func (f"✅ Google Drive file downloaded successfully: {output_file_path }") elif output_file_path : full_path_check =os .path .join (download_path ,output_file_path ) if os .path .exists (full_path_check ): logger_func (f"✅ Google Drive file downloaded successfully: {full_path_check }") else : logger_func (f"⚠️ Google Drive download finished, gdown returned '{output_file_path }', but file not found at expected location.") logger_func (f" Please check '{download_path }' for the downloaded file, it might have a different name than expected by gdown's return.") files_in_dest =[f for f in os .listdir (download_path )if os .path .isfile (os .path .join (download_path ,f ))] if len (files_in_dest )==1 : logger_func (f" Found one file in destination: {os .path .join (download_path ,files_in_dest [0 ])}. Assuming this is it.") elif len (files_in_dest )>1 and output_file_path in files_in_dest : logger_func (f" Confirmed file '{output_file_path }' exists in '{download_path }'.") else : raise Exception (f"gdown download failed or file not found. Returned: {output_file_path }") else : logger_func ("❌ Google Drive download failed. gdown did not return an output path.") raise Exception ("gdown download failed.") except PermissionError : logger_func (f"❌ Error: Permission denied to write to '{download_path }'. Please check permissions.") raise except Exception as e : logger_func (f"❌ An error occurred during Google Drive download: {e }") traceback .print_exc () raise def _get_filename_from_headers (headers ): cd =headers .get ('content-disposition') if not cd : return None fname_match =re .findall ('filename="?([^"]+)"?',cd ) if fname_match : return fname_match [0 ].strip () return None def download_dropbox_file (dropbox_link ,download_path =".",logger_func =print ): """ Downloads a file from a public Dropbox link. Args: dropbox_link (str): The public Dropbox link to the file. download_path (str, optional): The directory to save the downloaded file. Defaults to the current directory. logger_func (callable, optional): Function to use for logging. Defaults to print. """ logger_func (f"Attempting to download from Dropbox: {dropbox_link }") parsed_url =urlparse (dropbox_link ) query_params =parse_qs (parsed_url .query ) query_params ['dl']=['1'] new_query =urlencode (query_params ,doseq =True ) direct_download_url =urlunparse (parsed_url ._replace (query =new_query )) logger_func (f" Using direct download URL: {direct_download_url }") try : if not os .path .exists (download_path ): logger_func (f"Download path '{download_path }' does not exist. Creating it...") os .makedirs (download_path ,exist_ok =True ) with requests .get (direct_download_url ,stream =True ,allow_redirects =True ,timeout =(10 ,300 ))as r : r .raise_for_status () filename =_get_filename_from_headers (r .headers )or os .path .basename (urlparse (dropbox_link ).path )or "dropbox_downloaded_file" filename =re .sub (r'[<>:"/\\|?*]','_',filename ) full_save_path =os .path .join (download_path ,filename ) logger_func (f"Starting Dropbox download of '{filename }' to '{full_save_path }'...") with open (full_save_path ,'wb')as f : for chunk in r .iter_content (chunk_size =8192 ): f .write (chunk ) logger_func (f"✅ Dropbox file downloaded successfully: {full_save_path }") except Exception as e : logger_func (f"❌ An error occurred during Dropbox download: {e }") traceback .print_exc () raise if __name__ =="__main__": mega_file_link ="https://mega.nz/file/03oRjBQT#Tcbp5sQVIyPbdmv8sLgbb9Lf9AZvZLdKRSQiuXkNW0k" if not mega_file_link .startswith ("https://mega.nz/file/"): print ("Invalid Mega file link format. It should start with 'https://mega.nz/file/'.") else : script_dir =os .path .dirname (os .path .abspath (__file__ )) download_directory =os .path .join (script_dir ,"mega_downloads") print (f"Files will be downloaded to: {download_directory }") download_mega_file (mega_file_link ,download_directory ,logger_func =print )