Add '/api/v1/channels' and '/api/v1/channels/:ucid/videos'

This commit is contained in:
Omar Roth 2018-07-28 07:51:37 -05:00
parent 9355c60f6e
commit 829ffdd466
1 changed files with 191 additions and 0 deletions

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@ -986,6 +986,197 @@ get "/api/v1/top" do |env|
videos
end
get "/api/v1/channels/:ucid" do |env|
ucid = env.params.url["ucid"]
client = make_client(YT_URL)
channel = get_channel(ucid, client, PG_DB, pull_all_videos: false)
# TODO: Integrate this into `get_channel` function
# We can't get everything from RSS feed, so we get it from the channel page
channel_html = client.get("/channel/#{ucid}/about?disable_polymer=1").body
channel_html = XML.parse_html(channel_html)
banner = channel_html.xpath_node(%q(//div[@id="gh-banner"]/style)).not_nil!.content
banner = "https:" + banner.match(/background-image: url\((?<url>[^)]+)\)/).not_nil!["url"]
author_url = channel_html.xpath_node(%q(//a[@class="channel-header-profile-image-container spf-link"])).not_nil!["href"]
author_thumbnail = channel_html.xpath_node(%q(//img[@class="channel-header-profile-image"])).not_nil!["src"]
description = channel_html.xpath_node(%q(//meta[@itemprop="description"])).not_nil!["content"]
paid = channel_html.xpath_node(%q(//meta[@itemprop="paid"])).not_nil!["content"] == "True"
is_family_friendly = channel_html.xpath_node(%q(//meta[@itemprop="isFamilyFriendly"])).not_nil!["content"] == "True"
allowed_regions = channel_html.xpath_node(%q(//meta[@itemprop="regionsAllowed"])).not_nil!["content"].split(",")
sub_count, total_views, joined = channel_html.xpath_nodes(%q(//span[@class="about-stat"]))
sub_count = sub_count.content.rchop(" subscribers").delete(",").to_i64
total_views = total_views.content.rchop(" views").lchop("").delete(",").to_i64
joined = Time.parse(joined.content.lchop("Joined "), "%b %-d, %Y", Time::Location.local)
latest_videos = PG_DB.query_all("SELECT * FROM channel_videos WHERE ucid = $1 ORDER BY published DESC LIMIT 15", channel.id, as: ChannelVideo)
channel_info = JSON.build do |json|
json.object do
json.field "author", channel.author
json.field "authorId", channel.id
json.field "authorUrl", author_url
json.field "authorBanners" do
json.array do
qualities = [{width: 2560, height: 424},
{width: 2120, height: 351},
{width: 1060, height: 175}]
qualities.each do |quality|
json.object do
json.field "url", banner.gsub("=w1060", "=w#{quality[:width]}")
json.field "width", quality[:width]
json.field "height", quality[:height]
end
end
json.object do
json.field "url", banner.rchop("=w1060-fcrop64=1,00005a57ffffa5a8-nd-c0xffffffff-rj-k-no")
json.field "width", 512
json.field "height", 288
end
end
end
json.field "authorThumbnails" do
json.array do
qualities = [32, 48, 76, 100, 512]
qualities.each do |quality|
json.object do
json.field "url", author_thumbnail.gsub("/s100-", "/s#{quality}-")
json.field "width", quality
json.field "height", quality
end
end
end
end
json.field "subCount", sub_count
json.field "totalViews", total_views
json.field "joined", joined.epoch
json.field "paid", paid
json.field "isFamilyFriendly", is_family_friendly
json.field "description", description
json.field "allowedRegions", allowed_regions
json.field "latestVideos" do
json.array do
latest_videos.each do |video|
json.object do
json.field "title", video.title
json.field "videoId", video.id
json.field "published", video.published.epoch
json.field "videoThumbnails" do
json.object do
qualities = [{name: "default", url: "default", width: 120, height: 90},
{name: "high", url: "hqdefault", width: 480, height: 360},
{name: "medium", url: "mqdefault", width: 320, height: 180},
]
qualities.each do |quality|
json.field quality[:name] do
json.object do
json.field "url", "https://i.ytimg.com/vi/#{video.id}/#{quality["url"]}.jpg"
json.field "width", quality[:width]
json.field "height", quality[:height]
end
end
end
end
end
end
end
end
end
end
end
env.response.content_type = "application/json"
channel_info
end
get "/api/v1/channels/:ucid/videos" do |env|
ucid = env.params.url["ucid"]
page = env.params.query["page"]?
page ||= 1
url = produce_videos_url(ucid, page)
client = make_client(YT_URL)
response = client.get(url)
json = JSON.parse(response.body)
content_html = json["content_html"].as_s
if content_html.empty?
halt env, status_code: 403
end
document = XML.parse_html(content_html)
videos = JSON.build do |json|
json.array do
document.xpath_nodes(%q(//li[contains(@class, "feed-item-container")])).each do |item|
anchor = item.xpath_node(%q(.//h3[contains(@class,"yt-lockup-title")]/a))
if !anchor
halt env, status_code: 403
end
title = anchor.content.strip
video_id = anchor["href"].lchop("/watch?v=")
view_count = item.xpath_node(%q(.//div[@class="yt-lockup-meta"]/ul/li[2])).not_nil!
view_count = view_count.content.rchop(" views").delete(",").to_i
descriptionHtml = item.xpath_node(%q(.//div[contains(@class, "yt-lockup-description")])).not_nil!.to_s
description = descriptionHtml.gsub("<br>", "\n")
description = description.gsub("<br/>", "\n")
description = XML.parse_html(description).content.strip("\n ")
published = item.xpath_node(%q(.//div[@class="yt-lockup-meta"]/ul/li[1]))
if !published
next
end
published = published.content
published = decode_date(published)
json.object do
json.field "title", title
json.field "videoId", video_id
json.field "videoThumbnails" do
json.object do
qualities = [{name: "default", url: "default", width: 120, height: 90},
{name: "high", url: "hqdefault", width: 480, height: 360},
{name: "medium", url: "mqdefault", width: 320, height: 180},
]
qualities.each do |quality|
json.field quality[:name] do
json.object do
json.field "url", "https://i.ytimg.com/vi/#{video_id}/#{quality["url"]}.jpg"
json.field "width", quality[:width]
json.field "height", quality[:height]
end
end
end
end
end
json.field "description", description
json.field "descriptionHtml", descriptionHtml
json.field "viewCount", view_count
json.field "published", published.epoch
end
end
end
end
env.response.content_type = "application/json"
videos
end
get "/embed/:id" do |env|
if env.params.url["id"]?
id = env.params.url["id"]