discourse/app/models/invite_redeemer.rb

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InviteRedeemer = Struct.new(:invite, :username, :name) do
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def redeem
Invite.transaction do
if invite_was_redeemed?
process_invitation
return invited_user
end
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end
# If `invite_passthrough_hours` is defined, allow them to re-use the invite link
# to login again.
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if invite.redeemed_at && invite.redeemed_at >= SiteSetting.invite_passthrough_hours.hours.ago
return invited_user
end
nil
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end
# extracted from User cause it is very specific to invites
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def self.create_user_from_invite(invite, username, name)
user_exists = User.find_by_email(invite.email)
return user if user_exists
if username && UsernameValidator.new(username).valid_format? && User.username_available?(username)
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available_username = username
else
available_username = UserNameSuggester.suggest(invite.email)
end
available_name = name || available_username
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user = User.new(email: invite.email, username: available_username, name: available_name, active: true, trust_level: SiteSetting.default_invitee_trust_level)
user.save!
user
end
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private
def invited_user
@invited_user ||= get_invited_user
end
def process_invitation
add_to_private_topics_if_invited
add_user_to_invited_topics
add_user_to_groups
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send_welcome_message
approve_account_if_needed
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notify_invitee
end
def invite_was_redeemed?
# Return true if a row was updated
mark_invite_redeemed == 1
end
def mark_invite_redeemed
Invite.where(['id = ? AND redeemed_at IS NULL AND created_at >= ?',
invite.id, SiteSetting.invite_expiry_days.days.ago]).update_all('redeemed_at = CURRENT_TIMESTAMP')
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end
def get_invited_user
result = get_existing_user
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result ||= InviteRedeemer.create_user_from_invite(invite, username, name)
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result.send_welcome_message = false
result
end
def get_existing_user
User.find_by(email: invite.email)
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end
def add_to_private_topics_if_invited
invite.topics.private_messages.each do |t|
t.topic_allowed_users.create(user_id: invited_user.id)
end
end
def add_user_to_invited_topics
Invite.where('invites.email = ? and invites.id != ?', invite.email, invite.id).includes(:topics).where(topics: {archetype: Archetype::private_message}).each do |i|
i.topics.each do |t|
t.topic_allowed_users.create(user_id: invited_user.id)
end
end
end
def add_user_to_groups
invite.groups.each do |g|
invited_user.group_users.create(group_id: g.id)
end
end
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def send_welcome_message
if Invite.where(['email = ?', invite.email]).update_all(['user_id = ?', invited_user.id]) == 1
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invited_user.send_welcome_message = true
end
end
def approve_account_if_needed
invited_user.approve(invite.invited_by_id, send_email=false)
end
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def notify_invitee
invite.invited_by.notifications.create(notification_type: Notification.types[:invitee_accepted],
data: {display_username: invited_user.username}.to_json)
end
end