discourse/app/controllers/session_controller.rb

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require_dependency 'rate_limiter'
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class SessionController < ApplicationController
skip_before_filter :redirect_to_login_if_required
skip_before_filter :check_xhr, only: ['sso', 'sso_login', 'become']
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def csrf
render json: {csrf: form_authenticity_token }
end
def sso
if SiteSetting.enable_sso
redirect_to DiscourseSingleSignOn.generate_url(params[:return_path] || '/')
else
render nothing: true, status: 404
end
end
# For use in development mode only when login options could be limited or disabled.
# NEVER allow this to work in production.
def become
raise Discourse::InvalidAccess.new unless Rails.env.development?
user = User.find_by_username(params[:session_id])
raise "User #{params[:session_id]} not found" if user.blank?
log_on_user(user)
redirect_to "/"
end
def sso_login
unless SiteSetting.enable_sso
render nothing: true, status: 404
return
end
sso = DiscourseSingleSignOn.parse(request.query_string)
if !sso.nonce_valid?
render text: "Timeout expired, please try logging in again.", status: 500
return
end
return_path = sso.return_path
sso.expire_nonce!
if user = sso.lookup_or_create_user
if SiteSetting.must_approve_users? && !user.approved?
# TODO: need an awaiting approval message here
else
log_on_user user
end
# If it's not a relative URL check the host
if return_path !~ /^\/[^\/]/
begin
uri = URI(return_path)
return_path = "/" unless uri.host == Discourse.current_hostname
rescue
return_path = "/"
end
end
redirect_to return_path
else
render text: "unable to log on user", status: 500
end
end
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def create
unless allow_local_auth?
render nothing: true, status: 500
return
end
RateLimiter.new(nil, "login-hr-#{request.remote_ip}", 30, 1.hour).performed!
RateLimiter.new(nil, "login-min-#{request.remote_ip}", 6, 1.minute).performed!
params.require(:login)
params.require(:password)
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return invalid_credentials if params[:password].length > User.max_password_length
login = params[:login].strip
login = login[1..-1] if login[0] == "@"
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if user = User.find_by_username_or_email(login)
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# If their password is correct
unless user.confirm_password?(params[:password])
invalid_credentials
return
end
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# If the site requires user approval and the user is not approved yet
if login_not_approved_for?(user)
login_not_approved
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return
end
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# User signed on with username and password, so let's prevent the invite link
# from being used to log in (if one exists).
Invite.invalidate_for_email(user.email)
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else
invalid_credentials
return
end
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if user.suspended?
failed_to_login(user)
return
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end
if ScreenedIpAddress.block_login?(user, request.remote_ip)
not_allowed_from_ip_address(user)
return
end
(user.active && user.email_confirmed?) ? login(user) : not_activated(user)
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end
def forgot_password
params.require(:login)
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unless allow_local_auth?
render nothing: true, status: 500
return
end
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RateLimiter.new(nil, "forgot-password-hr-#{request.remote_ip}", 6, 1.hour).performed!
RateLimiter.new(nil, "forgot-password-min-#{request.remote_ip}", 3, 1.minute).performed!
user = User.find_by_username_or_email(params[:login])
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if user.present?
email_token = user.email_tokens.create(email: user.email)
Jobs.enqueue(:user_email, type: :forgot_password, user_id: user.id, email_token: email_token.token)
end
json = { result: "ok" }
unless SiteSetting.forgot_password_strict
json[:user_found] = user.present?
end
render json: json
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rescue RateLimiter::LimitExceeded
render_json_error(I18n.t("rate_limiter.slow_down"))
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end
def current
if current_user.present?
render_serialized(current_user, CurrentUserSerializer)
else
render nothing: true, status: 404
end
end
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def destroy
reset_session
log_off_user
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render nothing: true
end
private
def allow_local_auth?
!SiteSetting.enable_sso && SiteSetting.enable_local_logins
end
def login_not_approved_for?(user)
SiteSetting.must_approve_users? && !user.approved? && !user.admin?
end
def invalid_credentials
render json: {error: I18n.t("login.incorrect_username_email_or_password")}
end
def login_not_approved
render json: {error: I18n.t("login.not_approved")}
end
def not_activated(user)
render json: {
error: I18n.t("login.not_activated"),
reason: 'not_activated',
sent_to_email: user.find_email || user.email,
current_email: user.email
}
end
def not_allowed_from_ip_address(user)
render json: {error: I18n.t("login.not_allowed_from_ip_address", username: user.username)}
end
def failed_to_login(user)
message = user.suspend_reason ? "login.suspended_with_reason" : "login.suspended"
render json: { error: I18n.t(message, { date: I18n.l(user.suspended_till, format: :date_only),
reason: user.suspend_reason}) }
end
def login(user)
log_on_user(user)
render_serialized(user, UserSerializer)
end
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end