Class: Heathrow::Sources::RSS

Inherits:
Base
  • Object
show all
Defined in:
lib/heathrow/sources/rss.rb

Instance Attribute Summary

Attributes inherited from Base

#config, #db, #name, #type

Instance Method Summary collapse

Methods inherited from Base

#enabled?, #last_fetch, #poll_interval, #save_config, #update_last_fetch

Constructor Details

#initialize(name, config, db) ⇒ RSS

Returns a new instance of RSS.



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# File 'lib/heathrow/sources/rss.rb', line 10

def initialize(name, config, db)
  super
  # feeds can be simple URLs or hashes with {url:, title:, tags:}
  @feeds = config['feeds'] || []
end

Instance Method Details

#add_feed(url, title: nil, tags: []) ⇒ Object 



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# File 'lib/heathrow/sources/rss.rb', line 56

def add_feed(url, title: nil, tags: [])
  entry = { 'url' => url, 'title' => title, 'tags' => tags }
  @feeds << entry unless @feeds.any? { |f| feed_url(f) == url }
  @config['feeds'] = @feeds
  save_config
end

#fetch ⇒ Object

Legacy interface for source_manager



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# File 'lib/heathrow/sources/rss.rb', line 47

def fetch
  return [] unless enabled?
  source = @db.get_source_by_name(@name)
  return [] unless source
  sync(source['id'])
  update_last_fetch
  []
end

#list_feeds ⇒ Object 



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# File 'lib/heathrow/sources/rss.rb', line 69

def list_feeds
  @feeds.map { |f| { url: feed_url(f), title: feed_title(f), tags: feed_tags(f) } }
end

#remove_feed(url) ⇒ Object 



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# File 'lib/heathrow/sources/rss.rb', line 63

def remove_feed(url)
  @feeds.reject! { |f| feed_url(f) == url }
  @config['feeds'] = @feeds
  save_config
end

#sync(source_id) ⇒ Object

Sync all feeds into the database. Called from application.rb on refresh.



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# File 'lib/heathrow/sources/rss.rb', line 17

def sync(source_id)
  count = 0
  changed = false
  @feeds.each do |feed_entry|
    url, title, tags = parse_feed_entry(feed_entry)
    begin
      n = sync_feed(source_id, url, title, tags)
      count += n
      if feed_entry.is_a?(Hash)
        feed_entry['last_status'] = 'ok'
        feed_entry['last_sync'] = Time.now.to_i
        changed = true
      end
    rescue => e
      STDERR.puts "RSS error #{url}: #{e.message}" if ENV['DEBUG']
      if feed_entry.is_a?(Hash)
        feed_entry['last_status'] = "error: #{e.message}"[0..120]
        feed_entry['last_sync'] = Time.now.to_i
        changed = true
      end
    end
  end
  if changed
    @config['feeds'] = @feeds
    save_config
  end
  count
end

#test_connection(&progress) ⇒ Object 



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# File 'lib/heathrow/sources/rss.rb', line 73

def test_connection(&progress)
  ok = 0
  fail_names = []
  fail_details = []
  @feeds.each_with_index do |f, i|
    url = feed_url(f)
    title = feed_title(f) || url
    progress.call("Testing #{i+1}/#{@feeds.size}: #{title}") if progress
    begin
      data = http_get(url)
      if data && !data.empty?
        ok += 1
      else
        fail_names << title
        fail_details << title
      end
    rescue => e
      fail_names << title
      fail_details << "#{title}: #{e.message[0..50]}"
    end
  end
  if fail_names.empty?
    { success: true, message: "All #{ok} feeds OK" }
  else
    { success: false, message: "#{ok}/#{@feeds.size} OK. Failed: #{fail_details.join(', ')}", failed_feeds: fail_names }
  end
end