discourse/app/models/invite.rb

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require_dependency 'rate_limiter'
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class Invite < ActiveRecord::Base
class UserExists < StandardError; end
include RateLimiter::OnCreateRecord
include Trashable
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rate_limit :limit_invites_per_day
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belongs_to :user
belongs_to :topic
belongs_to :invited_by, class_name: 'User'
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has_many :invited_groups
has_many :groups, through: :invited_groups
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has_many :topic_invites
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has_many :topics, through: :topic_invites, source: :topic
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validates_presence_of :invited_by_id
validates :email, email: true, format: { with: EmailValidator.email_regex }
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before_create do
self.invite_key ||= SecureRandom.hex
end
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before_validation do
self.email = Email.downcase(email) unless email.nil?
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end
validate :user_doesnt_already_exist
attr_accessor :email_already_exists
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def user_doesnt_already_exist
@email_already_exists = false
return if email.blank?
user = Invite.find_user_by_email(email)
if user && user.id != self.user_id
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@email_already_exists = true
errors.add(:email)
end
end
def redeemed?
redeemed_at.present?
end
def expired?
created_at < SiteSetting.invite_expiry_days.days.ago
end
# link_valid? indicates whether the invite link can be used to log in to the site
def link_valid?
invalidated_at.nil?
end
def redeem(username: nil, name: nil, password: nil, user_custom_fields: nil)
InviteRedeemer.new(self, username, name, password, user_custom_fields).redeem unless expired? || destroyed? || !link_valid?
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end
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def self.invite_by_email(email, invited_by, topic = nil, group_ids = nil, custom_message = nil)
create_invite_by_email(email, invited_by,
topic: topic,
group_ids: group_ids,
custom_message: custom_message,
send_email: true
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)
end
# generate invite link
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def self.generate_invite_link(email, invited_by, topic = nil, group_ids = nil)
invite = create_invite_by_email(email, invited_by,
topic: topic,
group_ids: group_ids,
send_email: false
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)
"#{Discourse.base_url}/invites/#{invite.invite_key}" if invite
end
# Create an invite for a user, supplying an optional topic
#
# Return the previously existing invite if already exists. Returns nil if the invite can't be created.
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def self.create_invite_by_email(email, invited_by, opts = nil)
opts ||= {}
topic = opts[:topic]
group_ids = opts[:group_ids]
send_email = opts[:send_email].nil? ? true : opts[:send_email]
custom_message = opts[:custom_message]
lower_email = Email.downcase(email)
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if user = find_user_by_email(lower_email)
raise UserExists.new(I18n.t("invite.user_exists",
email: lower_email,
username: user.username,
base_path: Discourse.base_path
))
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end
invite = Invite.with_deleted
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.where(email: lower_email, invited_by_id: invited_by.id)
.order('created_at DESC')
.first
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if invite && (invite.expired? || invite.deleted_at)
invite.destroy
invite = nil
end
if invite
invite.update_columns(
created_at: Time.zone.now,
updated_at: Time.zone.now,
via_email: invite.via_email && send_email
)
else
create_args = {
invited_by: invited_by,
email: lower_email,
via_email: send_email
}
create_args[:moderator] = true if opts[:moderator]
create_args[:custom_message] = custom_message if custom_message
invite = Invite.create!(create_args)
end
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if topic && !invite.topic_invites.pluck(:topic_id).include?(topic.id)
invite.topic_invites.create!(invite_id: invite.id, topic_id: topic.id)
# to correct association
topic.reload
end
if group_ids.present?
group_ids = group_ids - invite.invited_groups.pluck(:group_id)
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group_ids.each do |group_id|
invite.invited_groups.create!(group_id: group_id)
end
end
Jobs.enqueue(:invite_email, invite_id: invite.id) if send_email
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invite.reload
invite
end
def self.find_user_by_email(email)
User.with_email(email).where(staged: false).first
end
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def self.get_group_ids(group_names)
group_ids = []
if group_names
group_names = group_names.split(',')
group_names.each { |group_name|
group_detail = Group.find_by_name(group_name)
group_ids.push(group_detail.id) if group_detail
}
end
group_ids
end
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def self.find_all_invites_from(inviter, offset = 0, limit = SiteSetting.invites_per_page)
Invite.where(invited_by_id: inviter.id)
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.where('invites.email IS NOT NULL')
.includes(user: :user_stat)
.order("CASE WHEN invites.user_id IS NOT NULL THEN 0 ELSE 1 END, user_stats.time_read DESC, invites.redeemed_at DESC")
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.limit(limit)
.offset(offset)
.references('user_stats')
end
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def self.find_pending_invites_from(inviter, offset = 0)
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find_all_invites_from(inviter, offset).where('invites.user_id IS NULL').order('invites.created_at DESC')
end
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def self.find_redeemed_invites_from(inviter, offset = 0)
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find_all_invites_from(inviter, offset).where('invites.user_id IS NOT NULL').order('invites.redeemed_at DESC')
end
def self.find_pending_invites_count(inviter)
find_all_invites_from(inviter, 0, nil).where('invites.user_id IS NULL').reorder(nil).count
end
def self.find_redeemed_invites_count(inviter)
find_all_invites_from(inviter, 0, nil).where('invites.user_id IS NOT NULL').reorder(nil).count
end
def self.filter_by(email_or_username)
if email_or_username
where(
'(LOWER(invites.email) LIKE :filter) or (LOWER(users.username) LIKE :filter)',
filter: "%#{email_or_username.downcase}%"
)
else
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all
end
end
def self.invalidate_for_email(email)
i = Invite.find_by(email: Email.downcase(email))
if i
i.invalidated_at = Time.zone.now
i.save
end
i
end
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def self.redeem_from_email(email)
invite = Invite.find_by(email: Email.downcase(email))
InviteRedeemer.new(invite).redeem if invite
invite
end
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def resend_invite
self.update_columns(created_at: Time.zone.now, updated_at: Time.zone.now)
Jobs.enqueue(:invite_email, invite_id: self.id)
end
def self.resend_all_invites_from(user_id)
Invite.where('invites.user_id IS NULL AND invites.email IS NOT NULL AND invited_by_id = ?', user_id).find_each do |invite|
invite.resend_invite
end
end
def self.rescind_all_expired_invites_from(user)
Invite.where('invites.user_id IS NULL AND invites.email IS NOT NULL AND invited_by_id = ? AND invites.created_at < ?',
user.id, SiteSetting.invite_expiry_days.days.ago).find_each do |invite|
invite.trash!(user)
end
end
def limit_invites_per_day
RateLimiter.new(invited_by, "invites-per-day", SiteSetting.max_invites_per_day, 1.day.to_i)
end
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def self.base_directory
File.join(Rails.root, "public", "uploads", "csv", RailsMultisite::ConnectionManagement.current_db)
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end
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def self.create_csv(file, name)
extension = File.extname(file.original_filename)
path = "#{Invite.base_directory}/#{name}#{extension}"
FileUtils.mkdir_p(Pathname.new(path).dirname)
File.open(path, "wb") { |f| f << file.tempfile.read }
path
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end
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end
# == Schema Information
#
# Table name: invites
#
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# id :integer not null, primary key
# invite_key :string(32) not null
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# email :string
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# invited_by_id :integer not null
# user_id :integer
# redeemed_at :datetime
# created_at :datetime not null
# updated_at :datetime not null
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# deleted_at :datetime
# deleted_by_id :integer
# invalidated_at :datetime
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# moderator :boolean default(FALSE), not null
# custom_message :text
# via_email :boolean default(FALSE), not null
#
# Indexes
#
# index_invites_on_email_and_invited_by_id (email,invited_by_id)
# index_invites_on_invite_key (invite_key) UNIQUE
#