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