mirror of
https://github.com/discourse/discourse.git
synced 2024-12-15 16:03:41 +08:00
a227083c1c
If a user has more than 60 active sessions, the oldest sessions will be terminated automatically. This protects performance when logging in and when loading the list of recently used devices.
257 lines
7.6 KiB
Ruby
257 lines
7.6 KiB
Ruby
# frozen_string_literal: true
|
|
require 'digest/sha1'
|
|
|
|
class UserAuthToken < ActiveRecord::Base
|
|
belongs_to :user
|
|
|
|
ROTATE_TIME = 10.minutes
|
|
# used when token did not arrive at client
|
|
URGENT_ROTATE_TIME = 1.minute
|
|
|
|
MAX_SESSION_COUNT = 60
|
|
|
|
USER_ACTIONS = ['generate']
|
|
|
|
attr_accessor :unhashed_auth_token
|
|
|
|
before_destroy do
|
|
UserAuthToken.log(action: 'destroy',
|
|
user_auth_token_id: self.id,
|
|
user_id: self.user_id,
|
|
user_agent: self.user_agent,
|
|
client_ip: self.client_ip,
|
|
auth_token: self.auth_token)
|
|
end
|
|
|
|
def self.log(info)
|
|
if SiteSetting.verbose_auth_token_logging
|
|
UserAuthTokenLog.create!(info)
|
|
end
|
|
end
|
|
|
|
RAD_PER_DEG = Math::PI / 180
|
|
EARTH_RADIUS_KM = 6371 # kilometers
|
|
|
|
def self.login_location(ip)
|
|
ipinfo = DiscourseIpInfo.get(ip)
|
|
|
|
ipinfo[:latitude] && ipinfo[:longitude] ? [ipinfo[:latitude], ipinfo[:longitude]] : nil
|
|
end
|
|
|
|
def self.distance(loc1, loc2)
|
|
lat1_rad, lon1_rad = loc1[0] * RAD_PER_DEG, loc1[1] * RAD_PER_DEG
|
|
lat2_rad, lon2_rad = loc2[0] * RAD_PER_DEG, loc2[1] * RAD_PER_DEG
|
|
|
|
a = Math.sin((lat2_rad - lat1_rad) / 2)**2 + Math.cos(lat1_rad) * Math.cos(lat2_rad) * Math.sin((lon2_rad - lon1_rad) / 2)**2
|
|
c = 2 * Math::atan2(Math::sqrt(a), Math::sqrt(1 - a))
|
|
|
|
c * EARTH_RADIUS_KM
|
|
end
|
|
|
|
def self.is_suspicious(user_id, user_ip)
|
|
return false unless User.find_by(id: user_id)&.staff?
|
|
|
|
ips = UserAuthTokenLog.where(user_id: user_id).pluck(:client_ip)
|
|
ips.delete_at(ips.index(user_ip) || ips.length) # delete one occurance (current)
|
|
ips.uniq!
|
|
return false if ips.empty? # first login is never suspicious
|
|
|
|
if user_location = login_location(user_ip)
|
|
ips.none? do |ip|
|
|
if location = login_location(ip)
|
|
distance(user_location, location) < SiteSetting.max_suspicious_distance_km
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
def self.generate!(user_id: , user_agent: nil, client_ip: nil, path: nil, staff: nil, impersonate: false)
|
|
token = SecureRandom.hex(16)
|
|
hashed_token = hash_token(token)
|
|
user_auth_token = UserAuthToken.create!(
|
|
user_id: user_id,
|
|
user_agent: user_agent,
|
|
client_ip: client_ip,
|
|
auth_token: hashed_token,
|
|
prev_auth_token: hashed_token,
|
|
rotated_at: Time.zone.now
|
|
)
|
|
user_auth_token.unhashed_auth_token = token
|
|
|
|
log(action: 'generate',
|
|
user_auth_token_id: user_auth_token.id,
|
|
user_id: user_id,
|
|
user_agent: user_agent,
|
|
client_ip: client_ip,
|
|
path: path,
|
|
auth_token: hashed_token)
|
|
|
|
if staff && !impersonate
|
|
Jobs.enqueue(:suspicious_login,
|
|
user_id: user_id,
|
|
client_ip: client_ip,
|
|
user_agent: user_agent)
|
|
end
|
|
|
|
user_auth_token
|
|
end
|
|
|
|
def self.lookup(unhashed_token, opts = nil)
|
|
mark_seen = opts && opts[:seen]
|
|
|
|
token = hash_token(unhashed_token)
|
|
expire_before = SiteSetting.maximum_session_age.hours.ago
|
|
|
|
user_token = find_by("(auth_token = :token OR
|
|
prev_auth_token = :token) AND rotated_at > :expire_before",
|
|
token: token, expire_before: expire_before)
|
|
|
|
if !user_token
|
|
|
|
log(action: "miss token",
|
|
user_id: user_token&.user_id,
|
|
auth_token: token,
|
|
user_agent: opts && opts[:user_agent],
|
|
path: opts && opts[:path],
|
|
client_ip: opts && opts[:client_ip])
|
|
|
|
return nil
|
|
end
|
|
|
|
if user_token.auth_token != token && user_token.prev_auth_token == token && user_token.auth_token_seen
|
|
changed_rows = UserAuthToken
|
|
.where("rotated_at < ?", 1.minute.ago)
|
|
.where(id: user_token.id, prev_auth_token: token)
|
|
.update_all(auth_token_seen: false)
|
|
|
|
# not updating AR model cause we want to give it one more req
|
|
# with wrong cookie
|
|
UserAuthToken.log(
|
|
action: changed_rows == 0 ? "prev seen token unchanged" : "prev seen token",
|
|
user_auth_token_id: user_token.id,
|
|
user_id: user_token.user_id,
|
|
auth_token: user_token.auth_token,
|
|
user_agent: opts && opts[:user_agent],
|
|
path: opts && opts[:path],
|
|
client_ip: opts && opts[:client_ip]
|
|
)
|
|
end
|
|
|
|
if mark_seen && user_token && !user_token.auth_token_seen && user_token.auth_token == token
|
|
# we must protect against concurrency issues here
|
|
changed_rows = UserAuthToken
|
|
.where(id: user_token.id, auth_token: token)
|
|
.update_all(auth_token_seen: true, seen_at: Time.zone.now)
|
|
|
|
if changed_rows == 1
|
|
# not doing a reload so we don't risk loading a rotated token
|
|
user_token.auth_token_seen = true
|
|
user_token.seen_at = Time.zone.now
|
|
end
|
|
|
|
log(action: changed_rows == 0 ? "seen wrong token" : "seen token",
|
|
user_auth_token_id: user_token.id,
|
|
user_id: user_token.user_id,
|
|
auth_token: user_token.auth_token,
|
|
user_agent: opts && opts[:user_agent],
|
|
path: opts && opts[:path],
|
|
client_ip: opts && opts[:client_ip])
|
|
end
|
|
|
|
user_token
|
|
end
|
|
|
|
def self.hash_token(token)
|
|
Digest::SHA1.base64digest("#{token}#{GlobalSetting.safe_secret_key_base}")
|
|
end
|
|
|
|
def self.cleanup!
|
|
|
|
if SiteSetting.verbose_auth_token_logging
|
|
UserAuthTokenLog.where('created_at < :time',
|
|
time: SiteSetting.maximum_session_age.hours.ago - ROTATE_TIME).delete_all
|
|
end
|
|
|
|
where('rotated_at < :time',
|
|
time: SiteSetting.maximum_session_age.hours.ago - ROTATE_TIME).delete_all
|
|
|
|
end
|
|
|
|
def rotate!(info = nil)
|
|
user_agent = (info && info[:user_agent] || self.user_agent)
|
|
client_ip = (info && info[:client_ip] || self.client_ip)
|
|
|
|
token = SecureRandom.hex(16)
|
|
|
|
result = DB.exec("
|
|
UPDATE user_auth_tokens
|
|
SET
|
|
auth_token_seen = false,
|
|
seen_at = null,
|
|
user_agent = :user_agent,
|
|
client_ip = :client_ip,
|
|
prev_auth_token = case when auth_token_seen then auth_token else prev_auth_token end,
|
|
auth_token = :new_token,
|
|
rotated_at = :now
|
|
WHERE id = :id AND (auth_token_seen or rotated_at < :safeguard_time)
|
|
", id: self.id,
|
|
user_agent: user_agent,
|
|
client_ip: client_ip&.to_s,
|
|
now: Time.zone.now,
|
|
new_token: UserAuthToken.hash_token(token),
|
|
safeguard_time: 30.seconds.ago
|
|
)
|
|
|
|
if result > 0
|
|
reload
|
|
self.unhashed_auth_token = token
|
|
|
|
UserAuthToken.log(
|
|
action: "rotate",
|
|
user_auth_token_id: id,
|
|
user_id: user_id,
|
|
auth_token: auth_token,
|
|
user_agent: user_agent,
|
|
client_ip: client_ip,
|
|
path: info && info[:path]
|
|
)
|
|
|
|
true
|
|
else
|
|
false
|
|
end
|
|
|
|
end
|
|
|
|
def self.enforce_session_count_limit!(user_id)
|
|
tokens_to_destroy = where(user_id: user_id).
|
|
where('rotated_at > ?', SiteSetting.maximum_session_age.hours.ago).
|
|
order("rotated_at DESC").offset(MAX_SESSION_COUNT)
|
|
|
|
tokens_to_destroy.delete_all # Returns the number of deleted rows
|
|
end
|
|
end
|
|
|
|
# == Schema Information
|
|
#
|
|
# Table name: user_auth_tokens
|
|
#
|
|
# id :integer not null, primary key
|
|
# user_id :integer not null
|
|
# auth_token :string not null
|
|
# prev_auth_token :string not null
|
|
# user_agent :string
|
|
# auth_token_seen :boolean default(FALSE), not null
|
|
# client_ip :inet
|
|
# rotated_at :datetime not null
|
|
# created_at :datetime not null
|
|
# updated_at :datetime not null
|
|
# seen_at :datetime
|
|
#
|
|
# Indexes
|
|
#
|
|
# index_user_auth_tokens_on_auth_token (auth_token) UNIQUE
|
|
# index_user_auth_tokens_on_prev_auth_token (prev_auth_token) UNIQUE
|
|
# index_user_auth_tokens_on_user_id (user_id)
|
|
#
|