[gelbooru] add support for `api_key` and `user_id` (#2767)

docs/configuration.rst

@@ -1313,6 +1313,18 @@ Description
     * ``"new"``: Expect the *new* site layout
 
 
+extractor.gelbooru.api-key & .user-id
+-------------------------------------
+Type
+    ``string``
+Default
+    ``null``
+Description
+    Values from the API Access Credentials section found at the bottom of your
+    `Account Options <https://gelbooru.com/index.php?page=account&s=options>`__
+    page.
+
+
 extractor.generic.enabled
 -------------------------
 Type

docs/gallery-dl.conf

@@ -109,6 +109,11 @@
             "include": "gallery",
             "layout": "auto"
         },
+        "gelbooru":
+        {
+            "api-key": null,
+            "user-id": null
+        },
         "gfycat":
         {
             "format": ["mp4", "webm", "mobile", "gif"]

gallery_dl/extractor/gelbooru.py

@@ -21,10 +21,15 @@ class GelbooruBase():
     root = "https://gelbooru.com"
 
     def _api_request(self, params):
+        params["api_key"] = self.api_key
+        params["user_id"] = self.user_id
+
         url = self.root + "/index.php?page=dapi&s=post&q=index&json=1"
         data = self.request(url, params=params).json()
+
         if "post" not in data:
             return ()
+
         posts = data["post"]
         if not isinstance(posts, list):
             return (posts,)

gallery_dl/extractor/gelbooru_v02.py

@@ -21,6 +21,9 @@ class GelbooruV02Extractor(booru.BooruExtractor):
 
     def __init__(self, match):
         booru.BooruExtractor.__init__(self, match)
+        self.api_key = self.config("api-key")
+        self.user_id = self.config("user-id")
+
         try:
             self.api_root = INSTANCES[self.category]["api_root"]
         except KeyError: