mirror of
https://github.com/philomena-dev/philomena.git
synced 2024-12-03 16:17:59 +01:00
76 lines
2 KiB
Elixir
76 lines
2 KiB
Elixir
defmodule PhilomenaProxy.Scrapers.Bluesky do
|
|
@moduledoc false
|
|
|
|
alias PhilomenaProxy.Scrapers.Scraper
|
|
alias PhilomenaProxy.Scrapers
|
|
|
|
@behaviour Scraper
|
|
|
|
@url_regex ~r|https://bsky\.app/profile/([^/]+)/post/([^/?#]+)|
|
|
@fullsize_image_regex ~r|.*/img/feed_fullsize/plain/([^/]+)/([^@]+).*|
|
|
@blob_image_url_pattern "https://bsky.social/xrpc/com.atproto.sync.getBlob/?did=\\1&cid=\\2"
|
|
|
|
@spec can_handle?(URI.t(), String.t()) :: boolean()
|
|
def can_handle?(_uri, url) do
|
|
String.match?(url, @url_regex)
|
|
end
|
|
|
|
@spec scrape(URI.t(), Scrapers.url()) :: Scrapers.scrape_result()
|
|
def scrape(_uri, url) do
|
|
[handle, id] = Regex.run(@url_regex, url, capture: :all_but_first)
|
|
|
|
did = fetch_did(handle)
|
|
|
|
api_url_get_posts =
|
|
"https://public.api.bsky.app/xrpc/app.bsky.feed.getPosts?uris=at://#{did}/app.bsky.feed.post/#{id}"
|
|
|
|
post_json =
|
|
api_url_get_posts
|
|
|> PhilomenaProxy.Http.get()
|
|
|> json!()
|
|
|> Map.fetch!("posts")
|
|
|> hd()
|
|
|
|
%{
|
|
source_url: url,
|
|
author_name: domain_first_component(post_json["author"]["handle"]),
|
|
description: post_json["record"]["text"],
|
|
images:
|
|
Enum.map(
|
|
post_json["embed"]["images"],
|
|
&%{
|
|
url: String.replace(&1["fullsize"], @fullsize_image_regex, @blob_image_url_pattern),
|
|
camo_url: PhilomenaProxy.Camo.image_url(&1["thumb"])
|
|
}
|
|
)
|
|
}
|
|
end
|
|
|
|
defp fetch_did(handle) do
|
|
case handle do
|
|
<<"did:", _rest::binary>> ->
|
|
handle
|
|
|
|
_ ->
|
|
api_url_resolve_handle =
|
|
"https://public.api.bsky.app/xrpc/com.atproto.identity.resolveHandle?handle=#{handle}"
|
|
|
|
api_url_resolve_handle
|
|
|> PhilomenaProxy.Http.get()
|
|
|> json!()
|
|
|> Map.fetch!("did")
|
|
end
|
|
end
|
|
|
|
defp domain_first_component(domain) do
|
|
case String.split(domain, ".") do
|
|
[name | _] ->
|
|
name
|
|
|
|
_ ->
|
|
domain
|
|
end
|
|
end
|
|
|
|
defp json!({:ok, %{body: body, status: 200}}), do: Jason.decode!(body)
|
|
end
|