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Merge pull request #2478 from SamantazFox/code-cleanup

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Code cleanup
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syeopite 2021-10-18 16:52:37 +00:00 committed by GitHub
commit db7e7aae46
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8 changed files with 164 additions and 164 deletions
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1
src/invidious.cr
View file

@ -27,6 +27,7 @@ require "yaml"
require "compress/zip"
require "protodec/utils"
require "./invidious/helpers/*"
require "./invidious/yt_backend/*"
require "./invidious/*"
require "./invidious/channels/*"
require "./invidious/routes/**"

37
src/invidious/helpers/helpers.cr
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@ -251,43 +251,6 @@ def html_to_content(description_html : String)
return description
end
def extract_videos(initial_data : Hash(String, JSON::Any), author_fallback : String? = nil, author_id_fallback : String? = nil)
extracted = extract_items(initial_data, author_fallback, author_id_fallback)
target = [] of SearchItem
extracted.each do |i|
if i.is_a?(Category)
i.contents.each { |cate_i| target << cate_i if !cate_i.is_a? Video }
else
target << i
end
end
return target.select(&.is_a?(SearchVideo)).map(&.as(SearchVideo))
end
def extract_selected_tab(tabs)
# Extract the selected tab from the array of tabs Youtube returns
return selected_target = tabs.as_a.select(&.["tabRenderer"]?.try &.["selected"].as_bool)[0]["tabRenderer"]
end
def fetch_continuation_token(items : Array(JSON::Any))
# Fetches the continuation token from an array of items
return items.last["continuationItemRenderer"]?
.try &.["continuationEndpoint"]["continuationCommand"]["token"].as_s
end
def fetch_continuation_token(initial_data : Hash(String, JSON::Any))
# Fetches the continuation token from initial data
if initial_data["onResponseReceivedActions"]?
continuation_items = initial_data["onResponseReceivedActions"][0]["appendContinuationItemsAction"]["continuationItems"]
else
tab = extract_selected_tab(initial_data["contents"]["twoColumnBrowseResultsRenderer"]["tabs"])
continuation_items = tab["content"]["sectionListRenderer"]["contents"][0]["itemSectionRenderer"]["contents"][0]["gridRenderer"]["items"]
end
return fetch_continuation_token(continuation_items.as_a)
end
def check_enum(db, enum_name, struct_type = nil)
return # TODO

96
src/invidious/helpers/utils.cr
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@ -1,70 +1,5 @@
require "lsquic"
require "db"
def add_yt_headers(request)
request.headers["user-agent"] ||= "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 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"
return if request.resource.starts_with? "/sorry/index"
request.headers["x-youtube-client-name"] ||= "1"
request.headers["x-youtube-client-version"] ||= "2.20200609"
# Preserve original cookies and add new YT consent cookie for EU servers
request.headers["cookie"] = "#{request.headers["cookie"]?}; CONSENT=YES+"
if !CONFIG.cookies.empty?
request.headers["cookie"] = "#{(CONFIG.cookies.map { |c| "#{c.name}=#{c.value}" }).join("; ")}; #{request.headers["cookie"]?}"
end
end
struct YoutubeConnectionPool
property! url : URI
property! capacity : Int32
property! timeout : Float64
property pool : DB::Pool(QUIC::Client | HTTP::Client)
def initialize(url : URI, @capacity = 5, @timeout = 5.0, use_quic = true)
@url = url
@pool = build_pool(use_quic)
end
def client(region = nil, &block)
if region
conn = make_client(url, region)
response = yield conn
else
conn = pool.checkout
begin
response = yield conn
rescue ex
conn.close
conn = QUIC::Client.new(url)
conn.family = (url.host == "www.youtube.com") ? CONFIG.force_resolve : Socket::Family::INET
conn.family = Socket::Family::INET if conn.family == Socket::Family::UNSPEC
conn.before_request { |r| add_yt_headers(r) } if url.host == "www.youtube.com"
response = yield conn
ensure
pool.release(conn)
end
end
response
end
private def build_pool(use_quic)
DB::Pool(QUIC::Client | HTTP::Client).new(initial_pool_size: 0, max_pool_size: capacity, max_idle_pool_size: capacity, checkout_timeout: timeout) do
if use_quic
conn = QUIC::Client.new(url)
else
conn = HTTP::Client.new(url)
end
conn.family = (url.host == "www.youtube.com") ? CONFIG.force_resolve : Socket::Family::INET
conn.family = Socket::Family::INET if conn.family == Socket::Family::UNSPEC
conn.before_request { |r| add_yt_headers(r) } if url.host == "www.youtube.com"
conn
end
end
end
# See http://www.evanmiller.org/how-not-to-sort-by-average-rating.html
def ci_lower_bound(pos, n)
if n == 0
@ -85,37 +20,6 @@ def elapsed_text(elapsed)
"#{(millis * 1000).round(2)}µs"
end
def make_client(url : URI, region = nil)
# TODO: Migrate any applicable endpoints to QUIC
client = HTTPClient.new(url, OpenSSL::SSL::Context::Client.insecure)
client.family = (url.host == "www.youtube.com") ? CONFIG.force_resolve : Socket::Family::UNSPEC
client.before_request { |r| add_yt_headers(r) } if url.host == "www.youtube.com"
client.read_timeout = 10.seconds
client.connect_timeout = 10.seconds
if region
PROXY_LIST[region]?.try &.sample(40).each do |proxy|
begin
proxy = HTTPProxy.new(proxy_host: proxy[:ip], proxy_port: proxy[:port])
client.set_proxy(proxy)
break
rescue ex
end
end
end
return client
end
def make_client(url : URI, region = nil, &block)
client = make_client(url, region)
begin
yield client
ensure
client.close
end
end
def decode_length_seconds(string)
length_seconds = string.gsub(/[^0-9:]/, "").split(":").map &.to_i
length_seconds = [0] * (3 - length_seconds.size) + length_seconds

96
src/invidious/yt_backend/connection_pool.cr Normal file
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@ -0,0 +1,96 @@
require "lsquic"
def add_yt_headers(request)
request.headers["user-agent"] ||= "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 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"
return if request.resource.starts_with? "/sorry/index"
request.headers["x-youtube-client-name"] ||= "1"
request.headers["x-youtube-client-version"] ||= "2.20200609"
# Preserve original cookies and add new YT consent cookie for EU servers
request.headers["cookie"] = "#{request.headers["cookie"]?}; CONSENT=YES+"
if !CONFIG.cookies.empty?
request.headers["cookie"] = "#{(CONFIG.cookies.map { |c| "#{c.name}=#{c.value}" }).join("; ")}; #{request.headers["cookie"]?}"
end
end
struct YoutubeConnectionPool
property! url : URI
property! capacity : Int32
property! timeout : Float64
property pool : DB::Pool(QUIC::Client | HTTP::Client)
def initialize(url : URI, @capacity = 5, @timeout = 5.0, use_quic = true)
@url = url
@pool = build_pool(use_quic)
end
def client(region = nil, &block)
if region
conn = make_client(url, region)
response = yield conn
else
conn = pool.checkout
begin
response = yield conn
rescue ex
conn.close
conn = QUIC::Client.new(url)
conn.family = (url.host == "www.youtube.com") ? CONFIG.force_resolve : Socket::Family::INET
conn.family = Socket::Family::INET if conn.family == Socket::Family::UNSPEC
conn.before_request { |r| add_yt_headers(r) } if url.host == "www.youtube.com"
response = yield conn
ensure
pool.release(conn)
end
end
response
end
private def build_pool(use_quic)
DB::Pool(QUIC::Client | HTTP::Client).new(initial_pool_size: 0, max_pool_size: capacity, max_idle_pool_size: capacity, checkout_timeout: timeout) do
if use_quic
conn = QUIC::Client.new(url)
else
conn = HTTP::Client.new(url)
end
conn.family = (url.host == "www.youtube.com") ? CONFIG.force_resolve : Socket::Family::INET
conn.family = Socket::Family::INET if conn.family == Socket::Family::UNSPEC
conn.before_request { |r| add_yt_headers(r) } if url.host == "www.youtube.com"
conn
end
end
end
def make_client(url : URI, region = nil)
# TODO: Migrate any applicable endpoints to QUIC
client = HTTPClient.new(url, OpenSSL::SSL::Context::Client.insecure)
client.family = (url.host == "www.youtube.com") ? CONFIG.force_resolve : Socket::Family::UNSPEC
client.before_request { |r| add_yt_headers(r) } if url.host == "www.youtube.com"
client.read_timeout = 10.seconds
client.connect_timeout = 10.seconds
if region
PROXY_LIST[region]?.try &.sample(40).each do |proxy|
begin
proxy = HTTPProxy.new(proxy_host: proxy[:ip], proxy_port: proxy[:port])
client.set_proxy(proxy)
break
rescue ex
end
end
end
return client
end
def make_client(url : URI, region = nil, &block)
client = make_client(url, region)
begin
yield client
ensure
client.close
end
end

31
src/invidious/helpers/extractors.cr → src/invidious/yt_backend/extractors.cr
View file

@ -533,37 +533,6 @@ private module HelperExtractors
end
end
# Extracts text from InnerTube response
#
# InnerTube can package text in three different formats
# "runs": [
# {"text": "something"},
# {"text": "cont"},
# ...
# ]
#
# "SimpleText": "something"
#
# Or sometimes just none at all as with the data returned from
# category continuations.
#
# In order to facilitate calling this function with `#[]?`:
# A nil will be accepted. Of course, since nil cannot be parsed,
# another nil will be returned.
def extract_text(item : JSON::Any?) : String?
if item.nil?
return nil
end
if text_container = item["simpleText"]?
return text_container.as_s
elsif text_container = item["runs"]?
return text_container.as_a.map(&.["text"].as_s).join("")
else
nil
end
end
# Parses an item from Youtube's JSON response into a more usable structure.
# The end result can either be a SearchVideo, SearchPlaylist or SearchChannel.
def extract_item(item : JSON::Any, author_fallback : String? = "",

67
src/invidious/yt_backend/extractors_utils.cr Normal file
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@ -0,0 +1,67 @@
# Extracts text from InnerTube response
#
# InnerTube can package text in three different formats
# "runs": [
# {"text": "something"},
# {"text": "cont"},
# ...
# ]
#
# "SimpleText": "something"
#
# Or sometimes just none at all as with the data returned from
# category continuations.
#
# In order to facilitate calling this function with `#[]?`:
# A nil will be accepted. Of course, since nil cannot be parsed,
# another nil will be returned.
def extract_text(item : JSON::Any?) : String?
if item.nil?
return nil
end
if text_container = item["simpleText"]?
return text_container.as_s
elsif text_container = item["runs"]?
return text_container.as_a.map(&.["text"].as_s).join("")
else
nil
end
end
def extract_videos(initial_data : Hash(String, JSON::Any), author_fallback : String? = nil, author_id_fallback : String? = nil)
extracted = extract_items(initial_data, author_fallback, author_id_fallback)
target = [] of SearchItem
extracted.each do |i|
if i.is_a?(Category)
i.contents.each { |cate_i| target << cate_i if !cate_i.is_a? Video }
else
target << i
end
end
return target.select(&.is_a?(SearchVideo)).map(&.as(SearchVideo))
end
def extract_selected_tab(tabs)
# Extract the selected tab from the array of tabs Youtube returns
return selected_target = tabs.as_a.select(&.["tabRenderer"]?.try &.["selected"].as_bool)[0]["tabRenderer"]
end
def fetch_continuation_token(items : Array(JSON::Any))
# Fetches the continuation token from an array of items
return items.last["continuationItemRenderer"]?
.try &.["continuationEndpoint"]["continuationCommand"]["token"].as_s
end
def fetch_continuation_token(initial_data : Hash(String, JSON::Any))
# Fetches the continuation token from initial data
if initial_data["onResponseReceivedActions"]?
continuation_items = initial_data["onResponseReceivedActions"][0]["appendContinuationItemsAction"]["continuationItems"]
else
tab = extract_selected_tab(initial_data["contents"]["twoColumnBrowseResultsRenderer"]["tabs"])
continuation_items = tab["content"]["sectionListRenderer"]["contents"][0]["itemSectionRenderer"]["contents"][0]["gridRenderer"]["items"]
end
return fetch_continuation_token(continuation_items.as_a)
end

0
src/invidious/helpers/proxy.cr → src/invidious/yt_backend/proxy.cr
View file

0
src/invidious/helpers/youtube_api.cr → src/invidious/yt_backend/youtube_api.cr
View file