From: Lomanic <lomanic@hotmail.fr>

The chunk_size=None parameter to iter_content lets us consume data as
soon as it arrives
https://docs.python-requests.org/en/master/api/#requests.Response.iter_content
---
 index.py | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/index.py b/index.py
index ffc35c7..bd9b7f7 100644
--- a/index.py
+++ b/index.py
@@ -123,17 +123,19 @@ class NewLeaf(object):
 
 	@cherrypy.expose
 	def vi(self, id, file):
-		with requests.get("https://i.ytimg.com/vi/{}/{}".format(id, file)) as r:
+		with requests.get("https://i.ytimg.com/vi/{}/{}".format(id, file), stream=True) as r:
 			r.raise_for_status()
 			cherrypy.response.headers["content-type"] = r.headers["content-type"]
-			return r # no idea if this is a good way to do it, but it definitely works! :D
+			for chunk in r.iter_content(chunk_size=None):
+				yield chunk
 
 	@cherrypy.expose
 	def ggpht(self, *path):
-		with requests.get("https://yt3.ggpht.com/{}".format("/".join(path))) as r:
+		with requests.get("https://yt3.ggpht.com/{}".format("/".join(path)), stream=True) as r:
 			r.raise_for_status()
 			cherrypy.response.headers["content-type"] = r.headers["content-type"]
-			return r
+			for chunk in r.iter_content(chunk_size=None):
+				yield chunk
 
 bind_port = getattr(configuration, "bind_port", 3000)
 bind_host = getattr(configuration, "bind_host", "0.0.0.0")
-- 
2.32.0

From: Lomanic <lomanic@hotmail.fr>

---
 configuration.sample.py |  3 +++
 extractors/video.py     |  5 ++++-
 index.py                | 18 ++++++++++++++++++
 3 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/configuration.sample.py b/configuration.sample.py
index b3a1ad9..1277fa8 100644
--- a/configuration.sample.py
+++ b/configuration.sample.py
@@ -15,3 +15,6 @@ website_origin = "http://example.com:3000"
 
 # The port to bind to.
 #bind_port = 3000
+
+# Tell NewLeaf to proxy video streams
+# proxy_videos = False
diff --git a/extractors/video.py b/extractors/video.py
index fe23de7..353c60c 100644
--- a/extractors/video.py
+++ b/extractors/video.py
@@ -14,6 +14,7 @@ from urllib.parse import parse_qs, urlparse, urlencode
 from cachetools import TTLCache
 
 video_cache = TTLCache(maxsize=50, ttl=300)
+proxy_videos = getattr(configuration, "proxy_videos", False)
 
 ytdl_opts = {
 	"quiet": True,
@@ -127,6 +128,8 @@ def extract_video(id):
 					url = format["fragment_base_url"]
 				else: # just a normal media file
 					url = format["url"]
+				if proxy_videos:
+					url = "{}/videoplayback?{}".format(configuration.website_origin, urlencode({"url": url}))
 				result["adaptiveFormats"].append({
 					"index": None,
 					"bitrate": str(int(format["tbr"]*1000)),
@@ -151,7 +154,7 @@ def extract_video(id):
 				})
 			else: # format is not adaptive
 				result["formatStreams"].append({
-					"url": format["url"],
+					"url": "{}/videoplayback?{}".format(configuration.website_origin, urlencode({"url": format["url"]})) if proxy_videos else format["url"],
 					"itag": format["format_id"],
 					"type": result_type,
 					"second__mime": mime,
diff --git a/index.py b/index.py
index bd9b7f7..029d9da 100644
--- a/index.py
+++ b/index.py
@@ -3,6 +3,7 @@ import json
 import pathlib
 import requests
 import yt_dlp
+from urllib.parse import urlparse
 from extractors.video import extract_video
 from extractors.channel import extract_channel, extract_channel_videos, extract_channel_latest
 from extractors.manifest import extract_manifest
@@ -137,6 +138,23 @@ class NewLeaf(object):
 			for chunk in r.iter_content(chunk_size=None):
 				yield chunk
 
+	@cherrypy.expose
+	def videoplayback(self, url):
+		proxy_videos = getattr(configuration, "proxy_videos", False)
+		if not proxy_videos:
+			raise cherrypy.HTTPError(401, "Unauthorized")
+		parts = urlparse(url)
+		if not (parts.hostname.endswith(".googlevideo.com") and parts.path == "/videoplayback"):
+			raise cherrypy.HTTPError(401, "Unauthorized")
+		headers = {k: v for k, v in cherrypy.request.headers.items() if k.lower() not in ["host", "remote-addr"] and not k.lower().startswith("x-")}
+		with requests.get(url, headers=headers, stream=True) as r:
+			r.raise_for_status()
+			for k, v in r.headers.items():
+				cherrypy.response.headers[k] = v
+			cherrypy.response.status = r.status_code
+			for chunk in r.iter_content(chunk_size=None):
+				yield chunk
+
 bind_port = getattr(configuration, "bind_port", 3000)
 bind_host = getattr(configuration, "bind_host", "0.0.0.0")
 server_root = pathlib.Path(__file__).parent.joinpath("root")
-- 
2.32.0