From 47ea31847908e4b6d0a381130ada5662278d52be Mon Sep 17 00:00:00 2001
From: Eugen Rochko <eugen@zeonfederated.com>
Date: Sun, 9 Sep 2018 13:33:36 +0200
Subject: [PATCH] tootctl accounts [add|del|cull] (#8642)

* CLI interface for creating/deleting local users

- tootctl accounts add USERNAME
- tootctl accounts del USERNAME

* Add CLI interface for culling remote users that no longer exist

- tootctl accounts cull
---
 lib/mastodon/accounts_cli.rb | 139 +++++++++++++++++++++++++++++++++++
 lib/mastodon/cli_helper.rb   |   1 +
 2 files changed, 140 insertions(+)

diff --git a/lib/mastodon/accounts_cli.rb b/lib/mastodon/accounts_cli.rb
index 83b69549d..d44cdfae9 100644
--- a/lib/mastodon/accounts_cli.rb
+++ b/lib/mastodon/accounts_cli.rb
@@ -43,6 +43,145 @@ module Mastodon
       end
     end
 
+    option :email, required: true
+    option :confirmed, type: :boolean
+    option :role, default: 'user'
+    option :reattach, type: :boolean
+    option :force, type: :boolean
+    desc 'add USERNAME', 'Create a new user'
+    long_desc <<-LONG_DESC
+      Create a new user account with a given USERNAME and an
+      e-mail address provided with --email.
+
+      With the --confirmed option, the confirmation e-mail will
+      be skipped and the account will be active straight away.
+
+      With the --role option one of  "user", "admin" or "moderator"
+      can be supplied. Defaults to "user"
+
+      With the --reattach option, the new user will be reattached
+      to a given existing username of an old account. If the old
+      account is still in use by someone else, you can supply
+      the --force option to delete the old record and reattach the
+      username to the new account anyway.
+    LONG_DESC
+    def add(username)
+      account  = Account.new(username: username)
+      password = SecureRandom.hex
+      user     = User.new(email: options[:email], password: password, admin: options[:role] == 'admin', moderator: options[:role] == 'moderator', confirmed_at: Time.now.utc)
+
+      if options[:reattach]
+        account = Account.find_local(username) || Account.new(username: username)
+
+        if account.user.present? && !options[:force]
+          say('The chosen username is currently in use', :red)
+          say('Use --force to reattach it anyway and delete the other user')
+          return
+        elsif account.user.present?
+          account.user.destroy!
+        end
+      end
+
+      user.account = account
+
+      if user.save
+        if options[:confirmed]
+          user.confirmed_at = nil
+          user.confirm!
+        end
+
+        say('OK', :green)
+        say("New password: #{password}")
+      else
+        user.errors.to_h.each do |key, error|
+          say('Failure/Error: ', :red)
+          say(key)
+          say('    ' + error, :red)
+        end
+      end
+    end
+
+    desc 'del USERNAME', 'Delete a user'
+    long_desc <<-LONG_DESC
+      Remove a user account with a given USERNAME.
+    LONG_DESC
+    def del(username)
+      account = Account.find_local(username)
+
+      if account.nil?
+        say('No user with such username', :red)
+        return
+      end
+
+      say("Deleting user with #{account.statuses_count}, this might take a while...")
+      SuspendAccountService.new.call(account, remove_user: true)
+      say('OK', :green)
+    end
+
+    option :dry_run, type: :boolean
+    desc 'cull', 'Remove remote accounts that no longer exist'
+    long_desc <<-LONG_DESC
+      Query every single remote account in the database to determine
+      if it still exists on the origin server, and if it doesn't,
+      remove it from the database.
+
+      Accounts that have had confirmed activity within the last week
+      are excluded from the checks.
+
+      If 10 or more accounts from the same domain cannot be queried
+      due to a connection error (such as missing DNS records) then
+      the domain is considered dead, and all other accounts from it
+      are deleted without further querying.
+
+      With the --dry-run option, no deletes will actually be carried
+      out.
+    LONG_DESC
+    def cull
+      domain_thresholds = Hash.new { |hash, key| hash[key] = 0 }
+      skip_threshold    = 7.days.ago
+      culled            = 0
+      dead_servers      = []
+      dry_run           = options[:dry_run] ? ' (DRY RUN)' : ''
+
+      Account.remote.where(protocol: :activitypub).partitioned.find_each do |account|
+        next if account.updated_at >= skip_threshold || account.last_webfingered_at >= skip_threshold
+
+        unless dead_servers.include?(account.domain)
+          begin
+            code = Request.new(:head, account.uri).perform(&:code)
+          rescue HTTP::ConnectionError
+            domain_thresholds[account.domain] += 1
+
+            if domain_thresholds[account.domain] >= 10
+              dead_servers << account.domain
+            end
+          rescue StandardError
+            next
+          end
+        end
+
+        if [404, 410].include?(code) || dead_servers.include?(account.domain)
+          unless options[:dry_run]
+            SuspendAccountService.new.call(account)
+            account.destroy
+          end
+
+          culled += 1
+          say('.', :green, false)
+        else
+          say('.', nil, false)
+        end
+      end
+
+      say
+      say("Removed #{culled} accounts (#{dead_servers.size} dead servers)#{dry_run}", :green)
+
+      unless dead_servers.empty?
+        say('R.I.P.:', :yellow)
+        dead_servers.each { |domain| say('    ' + domain) }
+      end
+    end
+
     private
 
     def rotate_keys_for_account(account, delay = 0)
diff --git a/lib/mastodon/cli_helper.rb b/lib/mastodon/cli_helper.rb
index 8c4d9731c..2f807d08c 100644
--- a/lib/mastodon/cli_helper.rb
+++ b/lib/mastodon/cli_helper.rb
@@ -4,5 +4,6 @@ dev_null = Logger.new('/dev/null')
 
 Rails.logger                 = dev_null
 ActiveRecord::Base.logger    = dev_null
+ActiveJob::Base.logger       = dev_null
 HttpLog.configuration.logger = dev_null
 Paperclip.options[:log]      = false