diff --git a/src/invidious.cr b/src/invidious.cr index e0bd0101..b8bdf0ee 100644 --- a/src/invidious.cr +++ b/src/invidious.cr @@ -92,6 +92,10 @@ SOFTWARE = { YT_POOL = YoutubeConnectionPool.new(YT_URL, capacity: CONFIG.pool_size) +# Image request pool + +GGPHT_POOL = YoutubeConnectionPool.new(URI.parse("https://yt3.ggpht.com"), capacity: CONFIG.pool_size) + # CLI Kemal.config.extra_options do |parser| parser.banner = "Usage: invidious [arguments]" diff --git a/src/invidious/routes/images.cr b/src/invidious/routes/images.cr index b6a2e110..51d85dfe 100644 --- a/src/invidious/routes/images.cr +++ b/src/invidious/routes/images.cr @@ -11,29 +11,9 @@ module Invidious::Routes::Images end end - # We're encapsulating this into a proc in order to easily reuse this - # portion of the code for each request block below. - request_proc = ->(response : HTTP::Client::Response) { - env.response.status_code = response.status_code - response.headers.each do |key, value| - if !RESPONSE_HEADERS_BLACKLIST.includes?(key.downcase) - env.response.headers[key] = value - end - end - - env.response.headers["Access-Control-Allow-Origin"] = "*" - - if response.status_code >= 300 - env.response.headers.delete("Transfer-Encoding") - return - end - - proxy_file(response, env) - } - begin - HTTP::Client.get("https://yt3.ggpht.com#{url}") do |resp| - return request_proc.call(resp) + GGPHT_POOL.client &.get(url, headers) do |resp| + return self.proxy_image(env, resp) end rescue ex end @@ -61,27 +41,10 @@ module Invidious::Routes::Images end end - request_proc = ->(response : HTTP::Client::Response) { - env.response.status_code = response.status_code - response.headers.each do |key, value| - if !RESPONSE_HEADERS_BLACKLIST.includes?(key.downcase) - env.response.headers[key] = value - end - end - - env.response.headers["Connection"] = "close" - env.response.headers["Access-Control-Allow-Origin"] = "*" - - if response.status_code >= 300 - return env.response.headers.delete("Transfer-Encoding") - end - - proxy_file(response, env) - } - begin - HTTP::Client.get("https://#{authority}.ytimg.com#{url}") do |resp| - return request_proc.call(resp) + get_ytimg_pool(authority).client &.get(url, headers) do |resp| + env.response.headers["Connection"] = "close" + return self.proxy_image(env, resp) end rescue ex end @@ -101,26 +64,9 @@ module Invidious::Routes::Images end end - request_proc = ->(response : HTTP::Client::Response) { - env.response.status_code = response.status_code - response.headers.each do |key, value| - if !RESPONSE_HEADERS_BLACKLIST.includes?(key.downcase) - env.response.headers[key] = value - end - end - - env.response.headers["Access-Control-Allow-Origin"] = "*" - - if response.status_code >= 300 && response.status_code != 404 - return env.response.headers.delete("Transfer-Encoding") - end - - proxy_file(response, env) - } - begin - HTTP::Client.get("https://i9.ytimg.com#{url}") do |resp| - return request_proc.call(resp) + get_ytimg_pool("i9").client &.get(url, headers) do |resp| + return self.proxy_image(env, resp) end rescue ex end @@ -165,8 +111,7 @@ module Invidious::Routes::Images if name == "maxres.jpg" build_thumbnails(id).each do |thumb| thumbnail_resource_path = "/vi/#{id}/#{thumb[:url]}.jpg" - # This can likely be optimized into a (small) pool sometime in the future. - if HTTP::Client.head("https://i.ytimg.com#{thumbnail_resource_path}").status_code == 200 + if get_ytimg_pool("i").client &.head(thumbnail_resource_path, headers).status_code == 200 name = thumb[:url] + ".jpg" break end @@ -181,29 +126,28 @@ module Invidious::Routes::Images end end - request_proc = ->(response : HTTP::Client::Response) { - env.response.status_code = response.status_code - response.headers.each do |key, value| - if !RESPONSE_HEADERS_BLACKLIST.includes?(key.downcase) - env.response.headers[key] = value - end - end - - env.response.headers["Access-Control-Allow-Origin"] = "*" - - if response.status_code >= 300 && response.status_code != 404 - return env.response.headers.delete("Transfer-Encoding") - end - - proxy_file(response, env) - } - begin - # This can likely be optimized into a (small) pool sometime in the future. - HTTP::Client.get("https://i.ytimg.com#{url}") do |resp| - return request_proc.call(resp) + get_ytimg_pool("i").client &.get(url, headers) do |resp| + return self.proxy_image(env, resp) end rescue ex end end + + private def self.proxy_image(env, response) + env.response.status_code = response.status_code + response.headers.each do |key, value| + if !RESPONSE_HEADERS_BLACKLIST.includes?(key.downcase) + env.response.headers[key] = value + end + end + + env.response.headers["Access-Control-Allow-Origin"] = "*" + + if response.status_code >= 300 + return env.response.headers.delete("Transfer-Encoding") + end + + return proxy_file(response, env) + end end diff --git a/src/invidious/yt_backend/connection_pool.cr b/src/invidious/yt_backend/connection_pool.cr index d3dbcc0e..5e6b75bb 100644 --- a/src/invidious/yt_backend/connection_pool.cr +++ b/src/invidious/yt_backend/connection_pool.cr @@ -1,17 +1,6 @@ -def add_yt_headers(request) - request.headers.delete("User-Agent") if request.headers["User-Agent"] == "Crystal" - request.headers["User-Agent"] ||= "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36" - - request.headers["Accept-Charset"] ||= "ISO-8859-1,utf-8;q=0.7,*;q=0.7" - request.headers["Accept"] ||= "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8" - request.headers["Accept-Language"] ||= "en-us,en;q=0.5" - - # Preserve original cookies and add new YT consent cookie for EU servers - request.headers["Cookie"] = "#{request.headers["cookie"]?}; CONSENT=PENDING+#{Random.rand(100..999)}" - if !CONFIG.cookies.empty? - request.headers["Cookie"] = "#{(CONFIG.cookies.map { |c| "#{c.name}=#{c.value}" }).join("; ")}; #{request.headers["cookie"]?}" - end -end +# Mapping of subdomain => YoutubeConnectionPool +# This is needed as we may need to access arbitrary subdomains of ytimg +private YTIMG_POOLS = {} of String => YoutubeConnectionPool struct YoutubeConnectionPool property! url : URI @@ -54,6 +43,21 @@ struct YoutubeConnectionPool end end +def add_yt_headers(request) + request.headers.delete("User-Agent") if request.headers["User-Agent"] == "Crystal" + request.headers["User-Agent"] ||= "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36" + + request.headers["Accept-Charset"] ||= "ISO-8859-1,utf-8;q=0.7,*;q=0.7" + request.headers["Accept"] ||= "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8" + request.headers["Accept-Language"] ||= "en-us,en;q=0.5" + + # Preserve original cookies and add new YT consent cookie for EU servers + request.headers["Cookie"] = "#{request.headers["cookie"]?}; CONSENT=PENDING+#{Random.rand(100..999)}" + if !CONFIG.cookies.empty? + request.headers["Cookie"] = "#{(CONFIG.cookies.map { |c| "#{c.name}=#{c.value}" }).join("; ")}; #{request.headers["cookie"]?}" + end +end + def make_client(url : URI, region = nil, force_resolve : Bool = false) client = HTTP::Client.new(url) @@ -77,3 +81,18 @@ def make_client(url : URI, region = nil, force_resolve : Bool = false, &block) client.close end end + +# Fetches a HTTP pool for the specified subdomain of ytimg.com +# +# Creates a new one when the specified pool for the subdomain does not exist +def get_ytimg_pool(subdomain) + if pool = YTIMG_POOLS[subdomain]? + return pool + else + LOGGER.info("ytimg_pool: Creating a new HTTP pool for \"https://#{subdomain}.ytimg.com\"") + pool = YoutubeConnectionPool.new(URI.parse("https://#{subdomain}.ytimg.com"), capacity: CONFIG.pool_size) + YTIMG_POOLS[subdomain] = pool + + return pool + end +end