mirror of
https://github.com/iv-org/invidious.git
synced 2024-12-22 13:33:38 +00:00
Adds description, video class, wilson score...
This commit is contained in:
Omar Roth
parent
5d48215a5f
commit
f7f5f91316
212
src/invidious.cr
212
src/invidious.cr
@ -5,41 +5,34 @@ require "pg"
|
||||
require "xml"
|
||||
require "time"
|
||||
|
||||
class AdaptiveFmts
|
||||
JSON.mapping(
|
||||
clen: Int32,
|
||||
url: String,
|
||||
lmt: Int64,
|
||||
index: String,
|
||||
fps: Int32,
|
||||
itag: Int32,
|
||||
projection_type: Int32,
|
||||
size: String,
|
||||
init: String,
|
||||
quality_label: String,
|
||||
bitrate: Int32,
|
||||
type: String
|
||||
)
|
||||
end
|
||||
# Get rid of everything except video_info, video_html, video_id
|
||||
|
||||
class URLEncodedFmtStreamMap
|
||||
JSON.mapping(
|
||||
url: String,
|
||||
itag: Int32,
|
||||
fallback_host: String,
|
||||
quality: String,
|
||||
type: String
|
||||
)
|
||||
end
|
||||
# class AdaptiveFmts
|
||||
# JSON.mapping(
|
||||
# clen: Int32,
|
||||
# url: String,
|
||||
# lmt: Int64,
|
||||
# index: String,
|
||||
# fps: Int32,
|
||||
# itag: Int32,
|
||||
# projection_type: Int32,
|
||||
# size: String,
|
||||
# init: String,
|
||||
# quality_label: String,
|
||||
# bitrate: Int32,
|
||||
# type: String
|
||||
# )
|
||||
# end
|
||||
|
||||
class CaptionTracks
|
||||
JSON.mapping(
|
||||
v: String,
|
||||
lc: String,
|
||||
t: String,
|
||||
u: String
|
||||
)
|
||||
end
|
||||
# class URLEncodedFmtStreamMap
|
||||
# JSON.mapping(
|
||||
# url: String,
|
||||
# itag: Int32,
|
||||
# fallback_host: String,
|
||||
# quality: String,
|
||||
# type: String
|
||||
# )
|
||||
# end
|
||||
|
||||
class CaptionTranslationLanguages
|
||||
JSON.mapping(
|
||||
@ -129,68 +122,131 @@ macro templated(filename)
|
||||
render "src/views/#{{{filename}}}.ecr", "src/views/layout.ecr"
|
||||
end
|
||||
|
||||
pg = DB.open "postgres://kemal:kemal@localhost:5432/invidious"
|
||||
context = OpenSSL::SSL::Context::Client.insecure
|
||||
class Video
|
||||
getter last_updated : Time
|
||||
getter video_id : String
|
||||
getter video_info : String
|
||||
getter video_html : String
|
||||
getter views : String
|
||||
getter likes : Int32
|
||||
getter dislikes : Int32
|
||||
getter rating : Float64
|
||||
getter description : String
|
||||
|
||||
get "/" do |env|
|
||||
templated "index"
|
||||
def initialize(last_updated, video_id, video_info, video_html, views, likes, dislikes, rating, description)
|
||||
@last_updated = last_updated
|
||||
@video_id = video_id
|
||||
@video_info = video_info
|
||||
@video_html = video_html
|
||||
@views = views
|
||||
@likes = likes
|
||||
@dislikes = dislikes
|
||||
@rating = rating
|
||||
@description = description
|
||||
end
|
||||
|
||||
def to_a
|
||||
return [@last_updated, @video_id, @video_info, @video_html, @views, @likes, @dislikes, @rating, @description]
|
||||
end
|
||||
|
||||
DB.mapping({
|
||||
last_updated: Time,
|
||||
video_id: String,
|
||||
video_info: String,
|
||||
video_html: String,
|
||||
views: Int64,
|
||||
likes: Int32,
|
||||
dislikes: Int32,
|
||||
rating: Float64,
|
||||
description: String,
|
||||
})
|
||||
end
|
||||
|
||||
def get_record(context, video_id)
|
||||
def get_video(video_id, context)
|
||||
client = HTTP::Client.new("www.youtube.com", 443, context)
|
||||
video_info = client.get("/get_video_info?video_id=#{video_id}&el=info&ps=default&eurl=&gl=US&hl=en").body
|
||||
info = HTTP::Params.parse(video_info)
|
||||
video_html = client.get("/watch?v=#{video_id}").body
|
||||
html = XML.parse(video_html)
|
||||
views = info["view_count"]
|
||||
views = info["view_count"].to_i64
|
||||
rating = info["avg_rating"].to_f64
|
||||
|
||||
# css query [title = "I like this"] > span
|
||||
like = html.xpath_node(%q(//button[@title="I like this"]/span))
|
||||
if like
|
||||
likes = like.content.delete(",").to_i
|
||||
likes = html.xpath_node(%q(//button[@title="I like this"]/span))
|
||||
if likes
|
||||
likes = likes.content.delete(",").to_i
|
||||
else
|
||||
likes = 1
|
||||
end
|
||||
|
||||
# css query [title = "I dislike this"] > span
|
||||
dislike = html.xpath_node(%q(//button[@title="I dislike this"]/span))
|
||||
if dislike
|
||||
dislikes = dislike.content.delete(",").to_i
|
||||
dislikes = html.xpath_node(%q(//button[@title="I dislike this"]/span))
|
||||
if dislikes
|
||||
dislikes = dislikes.content.delete(",").to_i
|
||||
else
|
||||
dislikes = 1
|
||||
end
|
||||
|
||||
args = {Time.now, video_id, video_info, video_html, views, likes, dislikes, rating}
|
||||
return args
|
||||
description = html.xpath_node(%q(//p[@id="eow-description"]))
|
||||
if description
|
||||
description = description.to_xml
|
||||
else
|
||||
description = ""
|
||||
end
|
||||
|
||||
video_record = Video.new(Time.now, video_id, video_info, video_html, views, likes, dislikes, rating, description)
|
||||
|
||||
return video_record
|
||||
end
|
||||
|
||||
get "/watch/:video_id" do |env|
|
||||
video_id = env.params.url["video_id"]
|
||||
# See http://www.evanmiller.org/how-not-to-sort-by-average-rating.html
|
||||
def ci_lower_bound(pos, n)
|
||||
if n == 0
|
||||
return 0
|
||||
end
|
||||
|
||||
# last_updated, video_id, video_info, video_html, views, likes, dislikes, rating
|
||||
video_record = pg.query_one?("select * from videos where video_id = $1",
|
||||
video_id,
|
||||
as: {Time, String, String, String, Int64, Int32, Int32, Float64})
|
||||
# z value here represents a confidence level of 0.95
|
||||
z = 1.96
|
||||
phat = 1.0*pos/n
|
||||
|
||||
# If record was last updated more than 5 minutes ago or doesn't exist, refresh
|
||||
if video_record.nil?
|
||||
video_record = get_record(context, video_id)
|
||||
pg.exec("insert into videos values ($1, $2, $3, $4, $5, $6, $7, $8)",
|
||||
video_record.to_a)
|
||||
elsif Time.now.epoch - video_record[0].epoch > 300
|
||||
video_record = get_record(context, video_id)
|
||||
pg.exec("update videos set last_updated = $1, video_info = $3, video_html = $4, views = $5, likes = $6, dislikes = $7, rating = $8 where video_id = $2",
|
||||
return (phat + z*z/(2*n) - z * Math.sqrt((phat*(1 - phat) + z*z/(4*n))/n))/(1 + z*z/n)
|
||||
end
|
||||
|
||||
get "/" do |env|
|
||||
templated "index"
|
||||
end
|
||||
|
||||
pg = DB.open "postgres://kemal:kemal@localhost:5432/invidious"
|
||||
context = OpenSSL::SSL::Context::Client.insecure
|
||||
|
||||
get "/watch" do |env|
|
||||
video_id = env.params.query["v"]
|
||||
|
||||
if pg.query_one?("select exists (select true from videos where video_id = $1)", video_id, as: Bool)
|
||||
video_record = pg.query_one("select * from videos where video_id = $1", video_id, as: Video)
|
||||
|
||||
# If record was last updated more than 1 hour ago, refresh
|
||||
if Time.now - video_record.last_updated > Time::Span.new(1, 0, 0, 0)
|
||||
video_record = get_video(video_id, context)
|
||||
pg.exec("update videos set last_updated = $1, video_info = $3, video_html = $4,\
|
||||
views = $5, likes = $6, dislikes = $7, rating = $8, description = $9 where video_id = $2",
|
||||
video_record.to_a)
|
||||
end
|
||||
else
|
||||
client = HTTP::Client.new("www.youtube.com", 443, context)
|
||||
video_info = client.get("/get_video_info?video_id=#{video_id}&el=info&ps=default&eurl=&gl=US&hl=en").body
|
||||
info = HTTP::Params.parse(video_info)
|
||||
|
||||
if info["reason"]?
|
||||
error_message = info["reason"]
|
||||
next templated "error"
|
||||
end
|
||||
|
||||
video_record = get_video(video_id, context)
|
||||
pg.exec("insert into videos values ($1,$2,$3,$4,$5,$6,$7,$8, $9)", video_record.to_a)
|
||||
end
|
||||
|
||||
# last_updated, video_id, video_info, video_html, views, likes, dislikes, rating
|
||||
video_info = HTTP::Params.parse(video_record[2])
|
||||
video_html = XML.parse(video_record[3])
|
||||
views = video_record[4]
|
||||
likes = video_record[5]
|
||||
dislikes = video_record[6]
|
||||
rating = video_record[7]
|
||||
video_info = HTTP::Params.parse(video_record.video_info)
|
||||
video_html = XML.parse(video_record.video_html)
|
||||
|
||||
fmt_stream = [] of HTTP::Params
|
||||
video_info["url_encoded_fmt_stream_map"].split(",") do |string|
|
||||
@ -199,16 +255,18 @@ get "/watch/:video_id" do |env|
|
||||
|
||||
fmt_stream.reverse! # We want lowest quality first
|
||||
|
||||
likes = likes.to_f
|
||||
dislikes = dislikes.to_f
|
||||
views = views.to_f
|
||||
related_videos = video_html.xpath_nodes(%q(//li/div/a[contains(@class,"content-link")]/@href))
|
||||
|
||||
engagement = ((dislikes + likes)/views * 100).significant(2)
|
||||
calculated_rating = likes/(likes + dislikes) * 4 + 1
|
||||
if related_videos.empty?
|
||||
related_videos = video_html.xpath_nodes(%q(//ytd-compact-video-renderer/div/a/@href))
|
||||
end
|
||||
|
||||
likes = likes.to_s
|
||||
dislikes = dislikes.to_s
|
||||
views = views.to_s
|
||||
likes = video_record.likes.to_f
|
||||
dislikes = video_record.dislikes.to_f
|
||||
views = video_record.views.to_f
|
||||
|
||||
engagement = ((dislikes + likes)/views * 100)
|
||||
calculated_rating = (likes/(likes + dislikes) * 4 + 1)
|
||||
|
||||
templated "watch"
|
||||
end
|
||||
|
||||
Loading…
Reference in New Issue
Block a user