Class: Jekyll::ActivityPubStatic::Generator

Inherits:
Generator
  • Object
show all
Defined in:
lib/jekyll/activitypub_static/generator.rb

Instance Method Summary collapse

Instance Method Details

#build_actor(site) ⇒ Object 



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# File 'lib/jekyll/activitypub_static/generator.rb', line 220

def build_actor(site)
  url  = site.config["url"]
  summary = site.config["description"]
  output_path = site.config.dig("activitypub", "output_path") || "activitypub"

  {
    "@context": [
      "https://www.w3.org/ns/activitystreams",
      "https://purl.archive.org/miscellany/1.0",
      "https://w3id.org/fep/b06c"
    ],
    "type": "Person",
    "id": "#{url}/actor.jsonld",
    "pollOnly": true,
    "name": name(site),
    "preferredUsername": preferred_username(site),
    "summary": (summary unless summary.to_s.strip.empty?),
    "inbox": "#{url}/#{output_path}/inbox.jsonld",
    "outbox": "#{url}/#{output_path}/outbox.jsonld",
    "attributedTo": "#{url}/actor.jsonld",
    "cc": "as:Public"
  }
end

#build_page(site, page_number) ⇒ Object 



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# File 'lib/jekyll/activitypub_static/generator.rb', line 260

def build_page(site, page_number)
  url = site.config["url"]
  output_path = site.config.dig("activitypub", "output_path") || "activitypub"
  id = "#{url}/#{output_path}/outbox/page-#{page_number}.jsonld"

  page = {
    "@context" => "https://www.w3.org/ns/activitystreams",
    "id" => id,
    "attributedTo" => "#{url}/actor.jsonld",
    "type" => "OrderedCollectionPage",
    "partOf" => "#{url}/#{output_path}/outbox.jsonld",
    "summary" => "page #{page_number} of outbox of #{name(site)}",
    "orderedItems" => [],
    "to" => "as:Public"
  }

  page["prev"] = "#{url}/#{output_path}/outbox/page-#{page_number - 1}.jsonld" if page_number > 1
  page
end

#generate(site) ⇒ Object 



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# File 'lib/jekyll/activitypub_static/generator.rb', line 29

def generate(site)
  generate_webfinger(site)
  generate_actor(site)
  generate_inbox(site)
  generate_activities(site)
  generate_outbox_pages(site)
  generate_outbox(site)
end

#generate_activities(site) ⇒ Object 



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# File 'lib/jekyll/activitypub_static/generator.rb', line 118

def generate_activities(site)
  url = site.config["url"]
  output_path = site.config.dig("activitypub", "output_path") || "activitypub"
  output_dir = File.join(output_path, "activities")

  site.posts.docs.each do |post|
    slug = post.basename_without_ext.sub(/^\d{4}-\d{2}-\d{2}-/, "")
    filename = "create-#{slug}.jsonld"
    path = File.join(output_dir, filename)

    article_id = "#{url}/#{output_path}/posts/#{slug}.jsonld"
    activity_id = "#{url}/#{output_path}/activities/create-#{slug}.jsonld"

    activity = {
      "@context" => "https://www.w3.org/ns/activitystreams",
      "id" => activity_id,
      "actor" => "#{url}/actor.jsonld",
      "type" => "Create",
      "summary" => "#{name(site)} created #{post.data["title"]}",
      "published" => post.date.iso8601,
      "object" => {
        "id" => article_id,
        "type" => "Article",
        "name" => post.data["title"]
      },
      "to" => "as:Public"
    }

    site.static_files << JsonStaticFile.new(site, output_dir, filename, activity)
    Jekyll.logger.info LOG_TAG, "Wrote activity to #{path}"
  end
end

#generate_actor(site) ⇒ Object 



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# File 'lib/jekyll/activitypub_static/generator.rb', line 63

def generate_actor(site)
  Jekyll.logger.info LOG_TAG, "Generating actor.jsonld"
  actor = build_actor(site)
  site.static_files << JsonStaticFile.new(site, "", "actor.jsonld", actor)
end

#generate_articles(site) ⇒ Object 



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# File 'lib/jekyll/activitypub_static/generator.rb', line 92

def generate_articles(site)
  url = site.config["url"]
  output_path = site.config.dig("activitypub", "output_path") || "activitypub"
  output_dir = File.join(output_path, "posts")

  site.posts.docs.each do |post|
    slug = post.basename_without_ext.sub(/^\d{4}-\d{2}-\d{2}-/, "")
    filename = "#{slug}.jsonld"

    article_id = "#{url}/#{output_path}/posts/#{slug}.jsonld"

    article = {
      "@context" => "https://www.w3.org/ns/activitystreams",
      "id" => article_id,
      "type" => "Article",
      "name" => post.data["title"],
      "content" => post.content,
      "published" => post.date.iso8601,
      "attributedTo" => "#{url}/actor.jsonld",
      "to" => "as:Public"
    }

    site.static_files << JsonStaticFile.new(site, output_dir, filename, article)
  end
end

#generate_inbox(site) ⇒ Object 



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# File 'lib/jekyll/activitypub_static/generator.rb', line 69

def generate_inbox(site)
  Jekyll.logger.info LOG_TAG, "Generating inbox.jsonld"
  url  = site.config["url"]
  output_path = site.config.dig("activitypub", "output_path") || "activitypub"
  inbox = {
    "@context": [
      "https://www.w3.org/ns/activitystreams",
      "https://purl.archive.org/miscellany/1.0",
      "https://w3id.org/fep/5711"
    ],
    "id": "#{url}/#{output_path}/inbox.jsonld",
    "type": "OrderedCollection",
    "attributedTo": "#{url}/actor.jsonld",
    "cc": "as:Public",
    "inboxOf": "#{url}/actor.jsonld",
    "summary": "Inbox of #{name(site)}",
    "totalItems": 0,
    "orderedItems": []
  }

  site.static_files << JsonStaticFile.new(site, output_path, "inbox.jsonld", inbox)
end

#generate_outbox(site) ⇒ Object 



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# File 'lib/jekyll/activitypub_static/generator.rb', line 193

def generate_outbox(site)
  Jekyll.logger.info LOG_TAG, "Generating outbox.jsonld"
  url = site.config["url"]
  output_path = site.config.dig("activitypub", "output_path") || "activitypub"
  total_items = site.posts.docs.length
  page_count = (total_items.to_f / PAGE_SIZE).ceil

  outbox = {
    "@context": [
      "https://www.w3.org/ns/activitystreams",
      "https://purl.archive.org/miscellany/1.0",
      "https://w3id.org/fep/5711"
    ],
    "id": "#{url}/#{output_path}/outbox.jsonld",
    "type": "OrderedCollection",
    "attributedTo": "#{url}/actor.jsonld",
    "cc": "as:Public",
    "outboxOf": "#{url}/actor.jsonld",
    "summary": "Outbox of #{name(site)}",
    "totalItems": total_items,
    "first": ("#{url}/#{output_path}/outbox/page-#{page_count}.jsonld" if total_items > 0)
  }

  site.static_files << JsonStaticFile.new(site, output_path, "outbox.jsonld", outbox)
  Jekyll.logger.info LOG_TAG, "Wrote outbox to #{File.join(site.dest, output_path, "outbox.jsonld")}"
end

#generate_outbox_pages(site) ⇒ Object 



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# File 'lib/jekyll/activitypub_static/generator.rb', line 151

def generate_outbox_pages(site)
  url = site.config["url"]
  output_path = site.config.dig("activitypub", "output_path") || "activitypub"
  output_dir = File.join(output_path, "outbox")

  page_number = 1
  page = build_page(site, page_number)

  site.posts.docs.each_with_index do |post, index|
    slug = post.basename_without_ext.sub(/^\d{4}-\d{2}-\d{2}-/, "")
    Jekyll.logger.info LOG_TAG, "Adding #{slug} to page #{page_number}"
    article_id = "#{url}/#{output_path}/posts/#{slug}.jsonld"
    activity_id = "#{url}/#{output_path}/activities/create-#{slug}.jsonld"

    if page["orderedItems"].length >= PAGE_SIZE
      site.static_files << JsonStaticFile.new(site, output_dir, "page-#{page_number}.jsonld", page)
      page_number += 1
      page = build_page(site, page_number)
    end

    activity = {
      "id" => activity_id,
      "type" => "Create",
      "object" => {
        "id" => article_id,
        "type" => "Article",
        "name" => post.data["title"]
      },
      "to" => "as:Public"
    }

    page["orderedItems"].unshift(activity)
  end

  if page["orderedItems"].any?
    path = File.join(output_dir, "page-#{page_number}.jsonld")

    site.static_files << JsonStaticFile.new(site, output_dir, "page-#{page_number}.jsonld", page)
    Jekyll.logger.info LOG_TAG, "Wrote outbox page #{page_number} to #{path}"
  end
end

#generate_webfinger(site) ⇒ Object 



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# File 'lib/jekyll/activitypub_static/generator.rb', line 38

def generate_webfinger(site)
  Jekyll.logger.info LOG_TAG, "Generating .well-known/webfinger"

  url = site.config["url"]
  host = URI(url).host
  username = preferred_username(site)
  actor_url = "#{url}/actor.jsonld"

  webfinger = {
    "subject" => "acct:#{username}@#{host}",
    "links" => [
      {
        "rel" => "self",
        "type" => "application/activity+json",
        "href" => actor_url
      }
    ]
  }

  sf = JsonStaticFile.new(site, ".well-known", "webfinger", webfinger)
  site.static_files << sf

  Jekyll.logger.info LOG_TAG, "Added webfinger as #{sf.path}"
end

#name(site) ⇒ Object 



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# File 'lib/jekyll/activitypub_static/generator.rb', line 244

def name(site)
  explicit = site.config["author"]
  return explicit unless explicit.to_s.strip.empty?
  "Anonymous"
end

#preferred_username(site) ⇒ Object 



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# File 'lib/jekyll/activitypub_static/generator.rb', line 250

def preferred_username(site)
  explicit = site.config.dig("activitypub", "preferred_username")
  return explicit unless explicit.to_s.strip.empty?

  host = URI(site.config["url"]).host
  return host if host

  "anonymous"
end