allow multiple image types

watcher.py

@@ -265,26 +265,36 @@ def build_storj_screenshot_urls(session: requests.Session, app_id: str) -> List[
         return []
 
     screenshot_urls: List[str] = []
+    image_extensions = ["png", "jpg", "jpeg", "webp"]
     for index in range(1, MAX_SCREENSHOTS_PER_APP + 1):
-        screenshot_url = f"{MEDIA_BASE_URL.rstrip('/')}/apps/{app_id}/screenshots/screenshot{index}.png"
-        try:
-            response = session.get(
-                screenshot_url,
-                timeout=REQUEST_TIMEOUT_SECONDS,
-                headers={"User-Agent": USER_AGENT},
+        matched_for_index = False
+        for extension in image_extensions:
+            screenshot_url = (
+                f"{MEDIA_BASE_URL.rstrip('/')}/apps/{app_id}/screenshots/screenshot{index}.{extension}"
             )
-        except requests.RequestException:
+            try:
+                response = session.get(
+                    screenshot_url,
+                    timeout=REQUEST_TIMEOUT_SECONDS,
+                    headers={"User-Agent": USER_AGENT},
+                )
+            except requests.RequestException:
+                continue
+
+            if response.status_code != 200:
+                continue
+
+            content_type = str(response.headers.get("Content-Type", "")).lower()
+            if content_type and "image" not in content_type:
+                continue
+
+            screenshot_urls.append(screenshot_url)
+            matched_for_index = True
             break
 
-        if response.status_code != 200:
+        if not matched_for_index:
             break
 
-        content_type = str(response.headers.get("Content-Type", "")).lower()
-        if content_type and "image" not in content_type:
-            break
-
-        screenshot_urls.append(screenshot_url)
-
     return screenshot_urls