[comick] detect broken chapters (#8054)

gallery_dl/extractor/comick.py

@@ -96,6 +96,13 @@ class ComickChapterExtractor(ComickBase, ChapterExtractor):
         }
 
     def images(self, page):
+        if not self._images[0].get("b2key") and all(
+                not img.get("b2key") for img in self._images):
+            self.log.error(
+                "%s: Broken Chapter (missing 'b2key' for all pages)",
+                self.groups[1])
+            return ()
+
         return [
             (f"https://meo.comick.pictures/{img['b2key']}", {
                 "width"    : img["w"],

test/results/comick.py

@@ -201,6 +201,14 @@ __tests__ = (
     "status"        : "Complete",
 },
 
+{
+    "#url"     : "https://comick.io/comic/00-fate-extra/eE2wOoqb-chapter-35-en",
+    "#comment" : "missing page data (#8054)",
+    "#class"   : comick.ComickChapterExtractor,
+    "#count"   : 0,
+    "#log"     : "eE2wOoqb-chapter-35-en: Broken Chapter (missing 'b2key' for all pages)",
+},
+
 {
     "#url"     : "https://comick.io/comic/kobayashi-san-chi-no-maid-dragon",
     "#comment" : "all chapters",