gab-social/lib/gabsocial/domains_cli.rb

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2019-07-02 08:10:25 +01:00
# frozen_string_literal: true
require 'concurrent'
require_relative '../../config/boot'
require_relative '../../config/environment'
require_relative 'cli_helper'
module GabSocial
class DomainsCLI < Thor
def self.exit_on_failure?
true
end
option :dry_run, type: :boolean
desc 'purge DOMAIN', 'Remove accounts from a DOMAIN without a trace'
long_desc <<-LONG_DESC
Remove all accounts from a given DOMAIN without leaving behind any
records. Unlike a suspension, if the DOMAIN still exists in the wild,
it means the accounts could return if they are resolved again.
LONG_DESC
def purge(domain)
removed = 0
dry_run = options[:dry_run] ? ' (DRY RUN)' : ''
Account.where(domain: domain).find_each do |account|
SuspendAccountService.new.call(account, destroy: true) unless options[:dry_run]
removed += 1
say('.', :green, false)
end
DomainBlock.where(domain: domain).destroy_all unless options[:dry_run]
say
say("Removed #{removed} accounts#{dry_run}", :green)
custom_emojis = CustomEmoji.where(domain: domain)
custom_emojis_count = custom_emojis.count
custom_emojis.destroy_all unless options[:dry_run]
say("Removed #{custom_emojis_count} custom emojis", :green)
end
option :concurrency, type: :numeric, default: 50, aliases: [:c]
option :silent, type: :boolean, default: false, aliases: [:s]
option :format, type: :string, default: 'summary', aliases: [:f]
desc 'crawl [START]', 'Crawl all known peers, optionally beginning at START'
long_desc <<-LONG_DESC
Crawl the fediverse by using the Gab Social REST API endpoints that expose
all known peers, and collect statistics from those peers, as long as those
peers support those API endpoints. When no START is given, the command uses
this server's own database of known peers to seed the crawl.
The --concurrency (-c) option controls the number of threads performing HTTP
requests at the same time. More threads means the crawl may complete faster.
The --silent (-s) option controls progress output.
The --format (-f) option controls how the data is displayed at the end. By
default (`summary`), a summary of the statistics is returned. The other options
are `domains`, which returns a newline-delimited list of all discovered peers,
and `json`, which dumps all the aggregated data raw.
LONG_DESC
def crawl(start = nil)
stats = Concurrent::Hash.new
processed = Concurrent::AtomicFixnum.new(0)
failed = Concurrent::AtomicFixnum.new(0)
start_at = Time.now.to_f
seed = start ? [start] : Account.remote.domains
pool = Concurrent::ThreadPoolExecutor.new(min_threads: 0, max_threads: options[:concurrency], idletime: 10, auto_terminate: true, max_queue: 0)
work_unit = ->(domain) do
next if stats.key?(domain)
stats[domain] = nil
processed.increment
begin
Request.new(:get, "https://#{domain}/api/v1/instance").perform do |res|
next unless res.code == 200
stats[domain] = Oj.load(res.to_s)
end
Request.new(:get, "https://#{domain}/api/v1/instance/peers").perform do |res|
next unless res.code == 200
Oj.load(res.to_s).reject { |peer| stats.key?(peer) }.each do |peer|
pool.post(peer, &work_unit)
end
end
Request.new(:get, "https://#{domain}/api/v1/instance/activity").perform do |res|
next unless res.code == 200
stats[domain]['activity'] = Oj.load(res.to_s)
end
say('.', :green, false) unless options[:silent]
rescue StandardError
failed.increment
say('.', :red, false) unless options[:silent]
end
end
seed.each do |domain|
pool.post(domain, &work_unit)
end
sleep 20
sleep 20 until pool.queue_length.zero?
pool.shutdown
pool.wait_for_termination(20)
ensure
pool.shutdown
say unless options[:silent]
case options[:format]
when 'summary'
stats_to_summary(stats, processed, failed, start_at)
when 'domains'
stats_to_domains(stats)
when 'json'
stats_to_json(stats)
end
end
private
def stats_to_summary(stats, processed, failed, start_at)
stats.compact!
total_domains = stats.size
total_users = stats.reduce(0) { |sum, (_key, val)| val.is_a?(Hash) && val['stats'].is_a?(Hash) ? sum + val['stats']['user_count'].to_i : sum }
total_active = stats.reduce(0) { |sum, (_key, val)| val.is_a?(Hash) && val['activity'].is_a?(Array) && val['activity'].size > 2 && val['activity'][1].is_a?(Hash) ? sum + val['activity'][1]['logins'].to_i : sum }
total_joined = stats.reduce(0) { |sum, (_key, val)| val.is_a?(Hash) && val['activity'].is_a?(Array) && val['activity'].size > 2 && val['activity'][1].is_a?(Hash) ? sum + val['activity'][1]['registrations'].to_i : sum }
say("Visited #{processed.value} domains, #{failed.value} failed (#{(Time.now.to_f - start_at).round}s elapsed)", :green)
say("Total servers: #{total_domains}", :green)
say("Total registered: #{total_users}", :green)
say("Total active last week: #{total_active}", :green)
say("Total joined last week: #{total_joined}", :green)
end
def stats_to_domains(stats)
say(stats.keys.join("\n"))
end
def stats_to_json(stats)
stats.compact!
say(Oj.dump(stats))
end
end
end