Adds support for importing password hashes used by "migratepassword" plugin

Adds setting to phpBB3 importer for importing passwords (default: off)
Plugin: https://github.com/discoursehosting/discourse-migratepassword

script/import_scripts/base.rb

@@ -273,6 +273,7 @@ class ImportScripts::Base
     u.custom_fields["import_id"] = import_id
     u.custom_fields["import_username"] = opts[:username] if opts[:username].present?
     u.custom_fields["import_avatar_url"] = avatar_url if avatar_url.present?
+    u.custom_fields["import_pass"] = opts[:password] if opts[:password].present?
 
     begin
       User.transaction do
@@ -284,6 +285,10 @@ class ImportScripts::Base
           u.user_profile.save!
         end
       end
+
+      if opts[:active] && opts[:password].present?
+        u.activate
+      end
     rescue
       # try based on email
       existing = User.find_by(email: opts[:email].downcase)

script/import_scripts/phpbb3/database/database_3_0.rb

@@ -14,7 +14,7 @@ module ImportScripts::PhpBB3
 
     def fetch_users(offset)
       query(<<-SQL)
-        SELECT u.user_id, u.user_email, u.username, u.user_regdate, u.user_lastvisit, u.user_ip,
+        SELECT u.user_id, u.user_email, u.username, u.user_password, u.user_regdate, u.user_lastvisit, u.user_ip,
           u.user_type, u.user_inactive_reason, g.group_name, b.ban_start, b.ban_end, b.ban_reason,
           u.user_posts, u.user_website, u.user_from, u.user_birthday, u.user_avatar_type, u.user_avatar
         FROM #{@table_prefix}_users u

script/import_scripts/phpbb3/database/database_3_1.rb

@@ -5,7 +5,7 @@ module ImportScripts::PhpBB3
   class Database_3_1 < Database_3_0
     def fetch_users(offset)
       query(<<-SQL)
-        SELECT u.user_id, u.user_email, u.username, u.user_regdate, u.user_lastvisit, u.user_ip,
+        SELECT u.user_id, u.user_email, u.username, u.user_password, u.user_regdate, u.user_lastvisit, u.user_ip,
           u.user_type, u.user_inactive_reason, g.group_name, b.ban_start, b.ban_end, b.ban_reason,
           u.user_posts, f.pf_phpbb_website AS user_website, f.pf_phpbb_location AS user_from,
           u.user_birthday, u.user_avatar_type, u.user_avatar

script/import_scripts/phpbb3/importers/user_importer.rb

@@ -16,6 +16,7 @@ module ImportScripts::PhpBB3
         id: row[:user_id],
         email: row[:user_email],
         username: row[:username],
+        password: @settings.import_passwords ? row[:user_password] : nil,
         name: @settings.username_as_name ? row[:username] : '',
         created_at: Time.zone.at(row[:user_regdate]),
         last_seen_at: row[:user_lastvisit] == 0 ? Time.zone.at(row[:user_regdate]) : Time.zone.at(row[:user_lastvisit]),

script/import_scripts/phpbb3/settings.yml

@@ -33,6 +33,11 @@ import:
   # When false: The system user will be used for all anonymous users.
   anonymous_users: true
 
+  # Enable this, if you want import password hashes in order to use the "migratepassword" plugin.
+  # This will allow users to login with their current password.
+  # The plugin is available at: https://github.com/discoursehosting/discourse-migratepassword
+  passwords: false
+
   # By default all the following things get imported. You can disable them by setting them to false.
   bookmarks: true
   attachments: true

script/import_scripts/phpbb3/support/settings.rb

@@ -12,6 +12,7 @@ module ImportScripts::PhpBB3
     attr_reader :import_private_messages
     attr_reader :import_polls
     attr_reader :import_bookmarks
+    attr_reader :import_passwords
 
     attr_reader :import_uploaded_avatars
     attr_reader :import_remote_avatars
@@ -36,6 +37,7 @@ module ImportScripts::PhpBB3
       @import_private_messages = import_settings['private_messages']
       @import_polls = import_settings['polls']
       @import_bookmarks = import_settings['bookmarks']
+      @import_passwords = import_settings['passwords']
 
       avatar_settings = import_settings['avatars']
       @import_uploaded_avatars = avatar_settings['uploaded']