[picazor] add 'user' extractor (#7083 #7504 #7795 #8717)

* [picazor] Add support for Picazor
* [picazor] Improve tests for picazor
* [picazor] run flake8
* [picazor] working on tests
* update extractor
* update tests
* update supportedsites

---------

Co-authored-by: Mike Fährmann <mike_faehrmann@web.de>

gallery_dl/extractor/picazor.py

@@ -0,0 +1,59 @@
+# -*- coding: utf-8 -*-
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+
+"""Extractors for https://picazor.com/"""
+
+from .common import Extractor, Message
+from .. import text
+
+
+class PicazorUserExtractor(Extractor):
+    """Extractor for picazor users"""
+    category = "picazor"
+    subcategory = "user"
+    root = "https://picazor.com"
+    browser = "firefox"
+    directory_fmt = ("{category}", "{user}")
+    filename_fmt = "{id}_{num:>03}.{extension}"
+    archive_fmt = "{id}_{num}"
+    pattern = r"(?:https?://)?(?:www\.)?picazor\.com/[a-z]{2}/([^/?#]+)"
+    example = "https://picazor.com/en/USERNAME"
+
+    def items(self):
+        user = self.groups[0]
+        first = True
+
+        url = f"{self.root}/api/files/{user}/sfiles"
+        params = {"page": 1}
+        headers = {"Referer": f"{self.root}/en/{user}"}
+
+        while True:
+            data = self.request_json(url, params=params, headers=headers)
+            if not data:
+                break
+
+            for item in data:
+                path = item.get("path")
+                if not path:
+                    continue
+
+                if first:
+                    first = False
+                    self.kwdict["user"] = user
+                    self.kwdict["count"] = item.get("order")
+                    yield Message.Directory, "", {
+                        "subject": item.get("subject"),
+                        "user"   : user,
+                    }
+
+                item.pop("blurDataURL", None)
+                item["num"] = item["order"]
+
+                file_url = self.root + path
+                text.nameext_from_url(file_url, item)
+                yield Message.Url, file_url, item
+
+            params["page"] += 1