[dandadan] add support (#8381)

docs/supportedsites.md

@@ -223,6 +223,12 @@ Consider all listed sites to potentially be NSFW.
     <td>Files, Folders</td>
     <td></td>
 </tr>
+<tr id="dandadan" title="dandadan">
+    <td>Dandadan</td>
+    <td>https://dandadan.net/</td>
+    <td>Chapters, Manga</td>
+    <td></td>
+</tr>
 <tr id="dankefuerslesen" title="dankefuerslesen">
     <td>Danke fürs Lesen</td>
     <td>https://danke.moe/</td>

gallery_dl/extractor/__init__.py

@@ -47,6 +47,7 @@ modules = [
     "cyberdrop",
     "cyberfile",
     "danbooru",
+    "dandadan",
     "dankefuerslesen",
     "desktopography",
     "deviantart",

gallery_dl/extractor/dandadan.py

@@ -0,0 +1,65 @@
+# -*- coding: utf-8 -*-
+
+# Copyright 2025 Mike Fährmann
+#
+# 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://dandadan.net/"""
+
+from .common import ChapterExtractor, MangaExtractor
+from .. import text
+
+BASE_PATTERN = r"(?:https?://)?(?:www\.)?dandadan\.net"
+
+
+class DandadanBase():
+    """Base class for dandadan extractors"""
+    category = "dandadan"
+    root = "https://dandadan.net"
+
+
+class DandadanChapterExtractor(DandadanBase, ChapterExtractor):
+    """Extractor for dandadan manga chapters"""
+    pattern = rf"{BASE_PATTERN}(/manga/dandadan-chapter-([^/?#]+)/?)"
+    example = "https://dandadan.net/manga/dandadan-chapter-123/"
+
+    def metadata(self, page):
+        chapter, sep, minor = text.extr(
+            page, "hapter ", " - ").partition(".")
+        return {
+            "manga"        : "Dandadan",
+            "chapter"      : text.parse_int(chapter),
+            "chapter_minor": f"{sep}{minor}",
+            "lang"         : "en",
+        }
+
+    def images(self, page):
+        images = [
+            (text.extr(figure, 'src="', '"'), None)
+            for figure in text.extract_iter(page, "<figure", "</figure>")
+        ]
+
+        if images:
+            return images
+
+        return [
+            (src, None)
+            for src in text.extract_iter(
+                page, '<img decoding="async" class="aligncenter" src="', '"')
+        ]
+
+
+class DandadanMangaExtractor(DandadanBase, MangaExtractor):
+    """Extractor for dandadan manga"""
+    chapterclass = DandadanChapterExtractor
+    pattern = rf"{BASE_PATTERN}(/)"
+    example = "https://dandadan.net/"
+
+    def chapters(self, page):
+        data = {}
+        return [
+            (text.extr(post, 'href="', '"'), data)
+            for post in text.extract_iter(page, '<li id="su-post', "</li>")
+        ]

test/results/dandadan.py

@@ -0,0 +1,51 @@
+# -*- 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.
+
+from gallery_dl.extractor import dandadan
+
+
+__tests__ = (
+{
+    "#url"     : "https://dandadan.net/manga/dandadan-chapter-1/",
+    "#class"   : dandadan.DandadanChapterExtractor,
+    "#pattern" : r"https://cdn\.readkakegurui\.com/file/cdnpog/dandadan/chapter\-1/\d+\.webp",
+    "#count"   : 67,
+
+    "chapter"  : 1,
+    "count"    : 67,
+    "page"     : range(1, 67),
+    "extension": "webp",
+    "lang"     : "en",
+    "manga"    : "Dandadan",
+},
+
+{
+    "#url"     : "https://dandadan.net/manga/dandadan-chapter-40-5-3/",
+    "#class"   : dandadan.DandadanChapterExtractor,
+    "#pattern" : r"https://cdn\.readkakegurui\.com/file/cdnpog/dandadan/chapter\-40\.5/\d+\.webp",
+    "#count"   : 35,
+
+    "chapter"      : 40,
+    "chapter_minor": ".5",
+},
+
+{
+    "#url"     : "https://dandadan.net/manga/dandadan-chapter-203/",
+    "#class"   : dandadan.DandadanChapterExtractor,
+    "#pattern" : r"https://pic\.readkakegurui\.com/file/sancdn/dandadan/chapter\-203/\d+\.webp",
+    "#count"   : 22,
+
+    "chapter": 203,
+},
+
+{
+    "#url"     : "https://dandadan.net/",
+    "#class"   : dandadan.DandadanMangaExtractor,
+    "#pattern" : dandadan.DandadanChapterExtractor.pattern,
+    "#count"   : range(210, 300),
+},
+
+)