feat: Allow loading of private HF models (#1309)

* feat: add HuggingFace auth token support to model download

* Format

faster_whisper/transcribe.py

@@ -597,6 +597,7 @@ class WhisperModel:
         local_files_only: bool = False,
         files: dict = None,
         revision: Optional[str] = None,
+        use_auth_token: Optional[Union[str, bool]] = None,
         **model_kwargs,
     ):
         """Initializes the Whisper model.
@@ -631,6 +632,8 @@ class WhisperModel:
           revision:
             An optional Git revision id which can be a branch name, a tag, or a
             commit hash.
+          use_auth_token: HuggingFace authentication token or True to use the
+            token stored by the HuggingFace config folder.
         """
         self.logger = get_logger()
 
@@ -647,6 +650,7 @@ class WhisperModel:
                 local_files_only=local_files_only,
                 cache_dir=download_root,
                 revision=revision,
+                use_auth_token=use_auth_token,
             )
 
         self.model = ctranslate2.models.Whisper(

faster_whisper/utils.py

@@ -2,7 +2,7 @@ import logging
 import os
 import re
 
-from typing import List, Optional
+from typing import List, Optional, Union
 
 import huggingface_hub
 import requests
@@ -53,6 +53,7 @@ def download_model(
     local_files_only: bool = False,
     cache_dir: Optional[str] = None,
     revision: Optional[str] = None,
+    use_auth_token: Optional[Union[str, bool]] = None,
 ):
     """Downloads a CTranslate2 Whisper model from the Hugging Face Hub.
 
@@ -69,6 +70,8 @@ def download_model(
       cache_dir: Path to the folder where cached files are stored.
       revision: An optional Git revision id which can be a branch name, a tag, or a
             commit hash.
+      use_auth_token: HuggingFace authentication token or True to use the
+            token stored by the HuggingFace config folder.
 
     Returns:
       The path to the downloaded model.
@@ -108,6 +111,9 @@ def download_model(
     if cache_dir is not None:
         kwargs["cache_dir"] = cache_dir
 
+    if use_auth_token is not None:
+        kwargs["token"] = use_auth_token
+
     try:
         return huggingface_hub.snapshot_download(repo_id, **kwargs)
     except (