[pinterest] scrap OAuth implementation; code improvements

OAuth authentication isn't needed anymore and other tools
like Postman are better suited for this job anyway.

gallery_dl/extractor/oauth.py

@@ -198,29 +198,6 @@ class OAuthFlickr(OAuthBase):
         )
 
 
-class OAuthPinterest(OAuthBase):
-    subcategory = "pinterest"
-    pattern = ["oauth:pinterest$"]
-    redirect_uri = "https://mikf.github.io/gallery-dl/oauth-redirect.html"
-
-    def items(self):
-        yield Message.Version, 1
-
-        client_id = self.oauth_config("client-id")
-        client_secret = self.oauth_config("client-secret")
-
-        if not client_id or not client_secret:
-            self.log.error("'client-id' and 'client-secret' required")
-            return
-
-        self._oauth2_authorization_code_grant(
-            client_id, client_secret,
-            "https://api.pinterest.com/oauth/",
-            "https://api.pinterest.com/v1/oauth/token",
-            scope="read_public", key="access_token", auth=False,
-        )
-
-
 class OAuthReddit(OAuthBase):
     subcategory = "reddit"
     pattern = ["oauth:reddit$"]

gallery_dl/extractor/pinterest.py

@@ -81,15 +81,12 @@ class PinterestBoardExtractor(PinterestExtractor):
     def items(self):
         board = self.api.board(self.user, self.board)
         data = {"board": board, "count": board["pin_count"]}
-        num = data["count"]
         yield Message.Version, 1
         yield Message.Directory, data
         for pin in self.api.board_pins(board["id"]):
-            url, pdata = self.data_from_pin(pin)
-            data.update(pdata)
-            data["num"] = num
-            num -= 1
-            yield Message.Url, url, data
+            url, pin_data = self.data_from_pin(pin)
+            pin_data.update(data)
+            yield Message.Url, url, pin_data
 
 
 class PinterestPinitExtractor(PinterestExtractor):
@@ -157,11 +154,8 @@ class PinterestAPI():
         return self._pagination("BoardFeed", options)
 
     def _call(self, resource, options):
-        url = "{}/resource/{}Resource/get".format(self.BASE_URL, resource)
-        params = {
-            "source_url": "",
-            "data": json.dumps({"options": options}),
-        }
+        url = "{}/resource/{}Resource/get/".format(self.BASE_URL, resource)
+        params = {"data": json.dumps({"options": options}), "source_url": ""}
 
         response = self.session.get(url, params=params, headers=self.HEADERS)
         data = response.json()
@@ -179,10 +173,8 @@ class PinterestAPI():
         self.log.error("API request failed: %s", msg)
         raise exception.StopExtraction()
 
-    def _pagination(self, resource, options, bookmarks=None):
+    def _pagination(self, resource, options):
         while True:
-            if bookmarks:
-                options["bookmarks"] = bookmarks
             data = self._call(resource, options)
             yield from data["resource_response"]["data"]
 
@@ -190,5 +182,6 @@ class PinterestAPI():
                 bookmarks = data["resource"]["options"]["bookmarks"]
                 if not bookmarks or bookmarks[0] == "-end-":
                     return
+                options["bookmarks"] = bookmarks
             except KeyError:
                 return