fix: fixes to context creation, avatar url generation

also implemented basic badge extraction and continuation for channels

ythdd_extractor.py

@@ -231,7 +231,7 @@ def makeWebContext(secondaryContextDict: dict):
 	# Uses web_context_dict to create a context, returns a dict.
 	# Essentially, expands the web_context_dict with a secondary one.
 
-	current_web_context_dict = web_context_dict
+	current_web_context_dict = web_context_dict.copy()
 
 	for key in secondaryContextDict:
 		current_web_context_dict[key] = secondaryContextDict[key]
@@ -275,13 +275,17 @@ def getChannelAvatar(response_json: dict):
 def generateChannelAvatarsFromUrl(url: str, proxied: bool = True) -> list:
 	# Generates channel avatars at default sizes.
 
+	# avatar urls for channels in search results start with //yt3.ggpht.com/
+	if url.startswith("//yt3.ggpht.com/"):
+		url = url.replace("//yt3.ggpht.com/", "https://yt3.ggpht.com/")
+
 	avatars = []
-	if not url.startswith("https://yt3.ggpht.com/"):
+	if not url.startswith("https://yt3.ggpht.com/") and not url.startswith("https://yt3.googleusercontent.com/"):
 		return []
 
 	url = ythdd_globals.translateLinks(url)
 	url_size_start = url.rfind("=s") + 2
-	url_size_end   = url. find("-", url_size_start) - 1
+	url_size_end   = url. find("-", url_size_start)
 
 	default_sizes = [32, 48, 76, 100, 176, 512]
 
@@ -296,20 +300,45 @@ def generateChannelAvatarsFromUrl(url: str, proxied: bool = True) -> list:
 
 	return avatars
 
-def isVerified(response_json: dict):
+def isVerified(response_json: dict) -> bool:
 	# Returns True if any user badge has been found (verified/artist).
-	badges = safeTraverse(response_json, [], default=False)
 
-	if badges: return True
+	if not isinstance(response_json, dict):
+		return False
+
+	match safeTraverse(list(response_json.keys()), [0], default=""):
+		case "metadataBadgeRenderer": # channels in search results
+			verified = safeTraverse(response_json, ["metadataBadgeRenderer", "tooltip"], default="") in ("Verified") # room for support of artist channels
+			return verified
+
 	return False
 
-def browseAbout(ucid: str):
+def isPremium(response_json: dict) -> bool:
+	# Returns True if content is paid (member-only).
+
+	if not isinstance(response_json, dict):
+		return False
+
+	match safeTraverse(list(response_json.keys()), [0], default=""):
+		case "metadataBadgeRenderer": # channels in search results
+			paid = safeTraverse(response_json, ["metadataBadgeRenderer", "style"], default="") in ("BADGE_STYLE_TYPE_MEMBERS_ONLY")
+			return paid
+
+	return False
+
+def browseChannel(ucid: str, params: str = None, ctoken: str = None):
 	# Returns the response from innertubes browse endpoint for channels (as a dict).
 
 	if len(ucid) != 24:
 		raise ValueError(f"Something is wrong with the UCID {ucid}. Expected a 24-character long channel ID, not {len(ucid)}.")
 
-	context = makeWebContext({'browseId': ucid})
+	additional_context = {'browseId': ucid}
+	if params is not None:
+		additional_context['params'] = params
+	if ctoken is not None:
+		additional_context['continuation'] = ctoken
+
+	context = makeWebContext(additional_context)
 
 	response = requests.post(
 		'https://www.youtube.com/youtubei/v1/browse?prettyPrint=false',