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# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Emails.UserEmail do
@moduledoc "User emails"
use Phoenix.Swoosh, view: Pleroma.Web.EmailView, layout: {Pleroma.Web.LayoutView, :email}
alias Pleroma.Config
alias Pleroma.User
alias Pleroma.Web.Endpoint
alias Pleroma.Web.Router
import Pleroma.Config.Helpers, only: [instance_name: 0, sender: 0]
defp recipient(email, nil), do: email
defp recipient(email, name), do: {name, email}
defp recipient(%User{} = user), do: recipient(user.email, user.name)
@spec welcome(User.t(), map()) :: Swoosh.Email.t()
def welcome(user, opts \\ %{}) do
new()
|> to(recipient(user))
|> from(Map.get(opts, :sender, sender()))
|> subject(Map.get(opts, :subject, "Welcome to #{instance_name()}!"))
|> html_body(Map.get(opts, :html, "Welcome to #{instance_name()}!"))
|> text_body(Map.get(opts, :text, "Welcome to #{instance_name()}!"))
end
def password_reset_email(user, token) when is_binary(token) do
password_reset_url = Router.Helpers.reset_password_url(Endpoint, :reset, token)
html_body = """
<h3>Reset your password at #{instance_name()}</h3>
<p>Someone has requested password change for your account at #{instance_name()}.</p>
<p>If it was you, visit the following link to proceed: <a href="#{password_reset_url}">reset password</a>.</p>
<p>If it was someone else, nothing to worry about: your data is secure and your password has not been changed.</p>
"""
new()
|> to(recipient(user))
|> from(sender())
|> subject("Password reset")
|> html_body(html_body)
end
def user_invitation_email(
user,
%Pleroma.UserInviteToken{} = user_invite_token,
to_email,
to_name \\ nil
) do
registration_url =
Router.Helpers.redirect_url(
Endpoint,
:registration_page,
user_invite_token.token
)
html_body = """
<h3>You are invited to #{instance_name()}</h3>
<p>#{user.name} invites you to join #{instance_name()}, an instance of Pleroma federated social networking platform.</p>
<p>Click the following link to register: <a href="#{registration_url}">accept invitation</a>.</p>
"""
new()
|> to(recipient(to_email, to_name))
|> from(sender())
|> subject("Invitation to #{instance_name()}")
|> html_body(html_body)
end
def account_confirmation_email(user) do
confirmation_url =
Router.Helpers.confirm_email_url(
Endpoint,
:confirm_email,
user.id,
to_string(user.confirmation_token)
)
html_body = """
<h3>Welcome to #{instance_name()}!</h3>
<p>Email confirmation is required to activate the account.</p>
<p>Click the following link to proceed: <a href="#{confirmation_url}">activate your account</a>.</p>
"""
new()
|> to(recipient(user))
|> from(sender())
|> subject("#{instance_name()} account confirmation")
|> html_body(html_body)
end
@doc """
Email used in digest email notifications
Includes Mentions and New Followers data
If there are no mentions (even when new followers exist), the function will return nil
"""
@spec digest_email(User.t()) :: Swoosh.Email.t() | nil
def digest_email(user) do
notifications = Pleroma.Notification.for_user_since(user, user.last_digest_emailed_at)
mentions =
notifications
|> Enum.filter(&(&1.activity.data["type"] == "Create"))
|> Enum.map(fn notification ->
object = Pleroma.Object.normalize(notification.activity)
object = update_in(object.data["content"], &format_links/1)
%{
data: notification,
object: object,
from: User.get_by_ap_id(notification.activity.actor)
}
end)
followers =
notifications
|> Enum.filter(&(&1.activity.data["type"] == "Follow"))
|> Enum.map(fn notification ->
%{
data: notification,
object: Pleroma.Object.normalize(notification.activity),
from: User.get_by_ap_id(notification.activity.actor)
}
end)
unless Enum.empty?(mentions) do
styling = Config.get([__MODULE__, :styling])
logo = Config.get([__MODULE__, :logo])
html_data = %{
instance: instance_name(),
user: user,
mentions: mentions,
followers: followers,
unsubscribe_link: unsubscribe_url(user, "digest"),
styling: styling
}
logo_path =
if is_nil(logo) do
Path.join(:code.priv_dir(:pleroma), "static/static/logo.png")
else
Path.join(Config.get([:instance, :static_dir]), logo)
end
new()
|> to(recipient(user))
|> from(sender())
|> subject("Your digest from #{instance_name()}")
|> put_layout(false)
|> render_body("digest.html", html_data)
|> attachment(Swoosh.Attachment.new(logo_path, filename: "logo.png", type: :inline))
end
end
defp format_links(str) do
re = ~r/<a.+href=['"].*>/iU
%{link_color: color} = Config.get([__MODULE__, :styling])
Regex.replace(re, str, fn link ->
String.replace(link, "<a", "<a style=\"color: #{color};text-decoration: none;\"")
end)
end
@doc """
Generate unsubscribe link for given user and notifications type.
The link contains JWT token with the data, and subscription can be modified without
authorization.
"""
@spec unsubscribe_url(User.t(), String.t()) :: String.t()
def unsubscribe_url(user, notifications_type) do
token =
%{"sub" => user.id, "act" => %{"unsubscribe" => notifications_type}, "exp" => false}
|> Pleroma.JWT.generate_and_sign!()
|> Base.encode64()
Router.Helpers.subscription_url(Endpoint, :unsubscribe, token)
end
end
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