add links

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zack 2024-10-21 13:57:31 -04:00
parent 3842798968
commit e2b802f968
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GPG key ID: 5F873416BCF59F35
54 changed files with 4984 additions and 6 deletions

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@ -12,6 +12,47 @@
</script>
</head>
<body class="bg-white">
<ul class="relative z-10 flex items-center gap-4 px-4 sm:px-6 lg:px-8 justify-end">
<%= if @current_user do %>
<li class="text-[0.8125rem] leading-6 text-zinc-900">
<%= @current_user.email %>
</li>
<li>
<.link
href={~p"/users/settings"}
class="text-[0.8125rem] leading-6 text-zinc-900 font-semibold hover:text-zinc-700"
>
Settings
</.link>
</li>
<li>
<.link
href={~p"/users/log_out"}
method="delete"
class="text-[0.8125rem] leading-6 text-zinc-900 font-semibold hover:text-zinc-700"
>
Log out
</.link>
</li>
<% else %>
<li>
<.link
href={~p"/users/register"}
class="text-[0.8125rem] leading-6 text-zinc-900 font-semibold hover:text-zinc-700"
>
Register
</.link>
</li>
<li>
<.link
href={~p"/users/log_in"}
class="text-[0.8125rem] leading-6 text-zinc-900 font-semibold hover:text-zinc-700"
>
Log in
</.link>
</li>
<% end %>
</ul>
<%= @inner_content %>
</body>
</html>

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@ -0,0 +1,42 @@
defmodule ZoeyscomputerWeb.UserSessionController do
use ZoeyscomputerWeb, :controller
alias Zoeyscomputer.Users
alias ZoeyscomputerWeb.UserAuth
def create(conn, %{"_action" => "registered"} = params) do
create(conn, params, "Account created successfully!")
end
def create(conn, %{"_action" => "password_updated"} = params) do
conn
|> put_session(:user_return_to, ~p"/users/settings")
|> create(params, "Password updated successfully!")
end
def create(conn, params) do
create(conn, params, "Welcome back!")
end
defp create(conn, %{"user" => user_params}, info) do
%{"email" => email, "password" => password} = user_params
if user = Users.get_user_by_email_and_password(email, password) do
conn
|> put_flash(:info, info)
|> UserAuth.log_in_user(user, user_params)
else
# In order to prevent user enumeration attacks, don't disclose whether the email is registered.
conn
|> put_flash(:error, "Invalid email or password")
|> put_flash(:email, String.slice(email, 0, 160))
|> redirect(to: ~p"/users/log_in")
end
end
def delete(conn, _params) do
conn
|> put_flash(:info, "Logged out successfully.")
|> UserAuth.log_out_user()
end
end

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@ -7,7 +7,7 @@ defmodule ZoeyscomputerWeb.Endpoint do
@session_options [
store: :cookie,
key: "_zoeyscomputer_key",
signing_salt: "G7dIA3Vb",
signing_salt: "kGKSTrbw",
same_site: "Lax"
]

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@ -0,0 +1,82 @@
defmodule ZoeyscomputerWeb.LinkLive.FormComponent do
use ZoeyscomputerWeb, :live_component
alias Zoeyscomputer.Links
@impl true
def render(assigns) do
~H"""
<div>
<.header>
<%= @title %>
<:subtitle>Use this form to manage link records in your database.</:subtitle>
</.header>
<.simple_form
for={@form}
id="link-form"
phx-target={@myself}
phx-change="validate"
phx-submit="save"
>
<.input field={@form[:url]} type="text" label="Url" />
<:actions>
<.button phx-disable-with="Saving...">Save Link</.button>
</:actions>
</.simple_form>
</div>
"""
end
@impl true
def update(%{link: link} = assigns, socket) do
{:ok,
socket
|> assign(assigns)
|> assign_new(:form, fn ->
to_form(Links.change_link(link))
end)}
end
@impl true
def handle_event("validate", %{"link" => link_params}, socket) do
changeset = Links.change_link(socket.assigns.link, link_params)
{:noreply, assign(socket, form: to_form(changeset, action: :validate))}
end
def handle_event("save", %{"link" => link_params}, socket) do
save_link(socket, socket.assigns.action, link_params)
end
defp save_link(socket, :edit, link_params) do
case Links.update_link(socket.assigns.link, link_params) do
{:ok, link} ->
notify_parent({:saved, link})
{:noreply,
socket
|> put_flash(:info, "Link updated successfully")
|> push_patch(to: socket.assigns.patch)}
{:error, %Ecto.Changeset{} = changeset} ->
{:noreply, assign(socket, form: to_form(changeset))}
end
end
defp save_link(socket, :new, link_params) do
case Links.create_link(link_params) do
{:ok, link} ->
notify_parent({:saved, link})
{:noreply,
socket
|> put_flash(:info, "Link created successfully")
|> push_patch(to: socket.assigns.patch)}
{:error, %Ecto.Changeset{} = changeset} ->
{:noreply, assign(socket, form: to_form(changeset))}
end
end
defp notify_parent(msg), do: send(self(), {__MODULE__, msg})
end

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@ -0,0 +1,39 @@
defmodule ZoeyscomputerWeb.LinkLive.Index do
use ZoeyscomputerWeb, :live_view
alias Zoeyscomputer.Links
def mount(_params, _session, socket) do
user_id = socket.assigns.current_user.id
changeset = Links.Link.changeset(%Links.Link{})
socket =
socket
|> assign(:links, Links.list_links(user_id))
|> assign(:form, to_form(changeset))
{:ok, socket}
end
def handle_event("submit", %{"link" => link_params}, socket) do
params =
link_params
|> Map.put("user_id", socket.assigns.current_user.id)
case Links.create_link(params) do
{:ok, link} ->
socket =
socket
|> assign(:links, [link | socket.assigns.links])
{:noreply, socket}
{:error, changeset} ->
socket
|> assign(:form, to_form(changeset))
{:noreply, socket}
end
end
end

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@ -0,0 +1,30 @@
<div class="flex gap-2">
<h1 class="text-2xl grow font-bold">Links</h1>
<.link
navigate={~p"/links/new"}
class="bg-black border border-black hover:bg-gray-700 text-white font-bold py-2 px-3 rounded-md"
>
Add Link
</.link>
</div>
<div class="divide-y">
<div :for={link <- @links}>
<div>
<div class="font-bold"><%= link.url %></div>
<div class="text-sm"><%= link.inserted_at %></div>
</div>
</div>
</div>
<.form for={@form} phx-submit="submit">
<div class="flex gap-2 items-end">
<div class="grow">
<.input field={@form[:url]} type="text" label="url" />
</div>
<button class="bg-black border border-black hover:bg-gray-700 text-white font-bold py-2 px-3 rounded-md">
Create
</button>
</div>
</.form>

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@ -0,0 +1,37 @@
defmodule ZoeyscomputerWeb.LinkLive.New do
use ZoeyscomputerWeb, :live_view
alias Zoeyscomputer.Links
def mount(_params, _session, socket) do
changeset = Links.Link.changeset(%Links.Link{})
socket =
socket
|> assign(:form, to_form(changeset))
{:ok, socket}
end
def handle_event("submit", %{"link" => link_params}, socket) do
params =
link_params
|> Map.put("user_id", socket.assigns.current_user.id)
case Links.create_link(params) do
{:ok, _link} ->
socket =
socket
|> put_flash(:info, "Link created successfully")
|> push_navigate(to: ~p"/links")
{:noreply, socket}
{:error, changeset} ->
socket
|> assign(:form, to_form(changeset))
{:noreply, socket}
end
end
end

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@ -0,0 +1,12 @@
<h1 class="text-2xl grow font-bold mb-6">Create a new link</h1>
<.form for={@form} phx-submit="submit">
<div class="flex gap-2 items-end">
<div class="grow">
<.input field={@form[:url]} type="text" label="url" />
</div>
<button class="bg-black border border-black hover:bg-gray-700 text-white font-bold py-2 px-3 rounded-md">
Create
</button>
</div>
</.form>

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@ -0,0 +1,51 @@
defmodule ZoeyscomputerWeb.UserConfirmationInstructionsLive do
use ZoeyscomputerWeb, :live_view
alias Zoeyscomputer.Users
def render(assigns) do
~H"""
<div class="mx-auto max-w-sm">
<.header class="text-center">
No confirmation instructions received?
<:subtitle>We'll send a new confirmation link to your inbox</:subtitle>
</.header>
<.simple_form for={@form} id="resend_confirmation_form" phx-submit="send_instructions">
<.input field={@form[:email]} type="email" placeholder="Email" required />
<:actions>
<.button phx-disable-with="Sending..." class="w-full">
Resend confirmation instructions
</.button>
</:actions>
</.simple_form>
<p class="text-center mt-4">
<.link href={~p"/users/register"}>Register</.link>
| <.link href={~p"/users/log_in"}>Log in</.link>
</p>
</div>
"""
end
def mount(_params, _session, socket) do
{:ok, assign(socket, form: to_form(%{}, as: "user"))}
end
def handle_event("send_instructions", %{"user" => %{"email" => email}}, socket) do
if user = Users.get_user_by_email(email) do
Users.deliver_user_confirmation_instructions(
user,
&url(~p"/users/confirm/#{&1}")
)
end
info =
"If your email is in our system and it has not been confirmed yet, you will receive an email with instructions shortly."
{:noreply,
socket
|> put_flash(:info, info)
|> redirect(to: ~p"/")}
end
end

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@ -0,0 +1,58 @@
defmodule ZoeyscomputerWeb.UserConfirmationLive do
use ZoeyscomputerWeb, :live_view
alias Zoeyscomputer.Users
def render(%{live_action: :edit} = assigns) do
~H"""
<div class="mx-auto max-w-sm">
<.header class="text-center">Confirm Account</.header>
<.simple_form for={@form} id="confirmation_form" phx-submit="confirm_account">
<input type="hidden" name={@form[:token].name} value={@form[:token].value} />
<:actions>
<.button phx-disable-with="Confirming..." class="w-full">Confirm my account</.button>
</:actions>
</.simple_form>
<p class="text-center mt-4">
<.link href={~p"/users/register"}>Register</.link>
| <.link href={~p"/users/log_in"}>Log in</.link>
</p>
</div>
"""
end
def mount(%{"token" => token}, _session, socket) do
form = to_form(%{"token" => token}, as: "user")
{:ok, assign(socket, form: form), temporary_assigns: [form: nil]}
end
# Do not log in the user after confirmation to avoid a
# leaked token giving the user access to the account.
def handle_event("confirm_account", %{"user" => %{"token" => token}}, socket) do
case Users.confirm_user(token) do
{:ok, _} ->
{:noreply,
socket
|> put_flash(:info, "User confirmed successfully.")
|> redirect(to: ~p"/")}
:error ->
# If there is a current user and the account was already confirmed,
# then odds are that the confirmation link was already visited, either
# by some automation or by the user themselves, so we redirect without
# a warning message.
case socket.assigns do
%{current_user: %{confirmed_at: confirmed_at}} when not is_nil(confirmed_at) ->
{:noreply, redirect(socket, to: ~p"/")}
%{} ->
{:noreply,
socket
|> put_flash(:error, "User confirmation link is invalid or it has expired.")
|> redirect(to: ~p"/")}
end
end
end
end

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@ -0,0 +1,50 @@
defmodule ZoeyscomputerWeb.UserForgotPasswordLive do
use ZoeyscomputerWeb, :live_view
alias Zoeyscomputer.Users
def render(assigns) do
~H"""
<div class="mx-auto max-w-sm">
<.header class="text-center">
Forgot your password?
<:subtitle>We'll send a password reset link to your inbox</:subtitle>
</.header>
<.simple_form for={@form} id="reset_password_form" phx-submit="send_email">
<.input field={@form[:email]} type="email" placeholder="Email" required />
<:actions>
<.button phx-disable-with="Sending..." class="w-full">
Send password reset instructions
</.button>
</:actions>
</.simple_form>
<p class="text-center text-sm mt-4">
<.link href={~p"/users/register"}>Register</.link>
| <.link href={~p"/users/log_in"}>Log in</.link>
</p>
</div>
"""
end
def mount(_params, _session, socket) do
{:ok, assign(socket, form: to_form(%{}, as: "user"))}
end
def handle_event("send_email", %{"user" => %{"email" => email}}, socket) do
if user = Users.get_user_by_email(email) do
Users.deliver_user_reset_password_instructions(
user,
&url(~p"/users/reset_password/#{&1}")
)
end
info =
"If your email is in our system, you will receive instructions to reset your password shortly."
{:noreply,
socket
|> put_flash(:info, info)
|> redirect(to: ~p"/")}
end
end

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@ -0,0 +1,43 @@
defmodule ZoeyscomputerWeb.UserLoginLive do
use ZoeyscomputerWeb, :live_view
def render(assigns) do
~H"""
<div class="mx-auto max-w-sm">
<.header class="text-center">
Log in to account
<:subtitle>
Don't have an account?
<.link navigate={~p"/users/register"} class="font-semibold text-brand hover:underline">
Sign up
</.link>
for an account now.
</:subtitle>
</.header>
<.simple_form for={@form} id="login_form" action={~p"/users/log_in"} phx-update="ignore">
<.input field={@form[:email]} type="email" label="Email" required />
<.input field={@form[:password]} type="password" label="Password" required />
<:actions>
<.input field={@form[:remember_me]} type="checkbox" label="Keep me logged in" />
<.link href={~p"/users/reset_password"} class="text-sm font-semibold">
Forgot your password?
</.link>
</:actions>
<:actions>
<.button phx-disable-with="Logging in..." class="w-full">
Log in <span aria-hidden="true"></span>
</.button>
</:actions>
</.simple_form>
</div>
"""
end
def mount(_params, _session, socket) do
email = Phoenix.Flash.get(socket.assigns.flash, :email)
form = to_form(%{"email" => email}, as: "user")
{:ok, assign(socket, form: form), temporary_assigns: [form: form]}
end
end

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@ -0,0 +1,87 @@
defmodule ZoeyscomputerWeb.UserRegistrationLive do
use ZoeyscomputerWeb, :live_view
alias Zoeyscomputer.Users
alias Zoeyscomputer.Users.User
def render(assigns) do
~H"""
<div class="mx-auto max-w-sm">
<.header class="text-center">
Register for an account
<:subtitle>
Already registered?
<.link navigate={~p"/users/log_in"} class="font-semibold text-brand hover:underline">
Log in
</.link>
to your account now.
</:subtitle>
</.header>
<.simple_form
for={@form}
id="registration_form"
phx-submit="save"
phx-change="validate"
phx-trigger-action={@trigger_submit}
action={~p"/users/log_in?_action=registered"}
method="post"
>
<.error :if={@check_errors}>
Oops, something went wrong! Please check the errors below.
</.error>
<.input field={@form[:email]} type="email" label="Email" required />
<.input field={@form[:password]} type="password" label="Password" required />
<:actions>
<.button phx-disable-with="Creating account..." class="w-full">Create an account</.button>
</:actions>
</.simple_form>
</div>
"""
end
def mount(_params, _session, socket) do
changeset = Users.change_user_registration(%User{})
socket =
socket
|> assign(trigger_submit: false, check_errors: false)
|> assign_form(changeset)
{:ok, socket, temporary_assigns: [form: nil]}
end
def handle_event("save", %{"user" => user_params}, socket) do
case Users.register_user(user_params) do
{:ok, user} ->
{:ok, _} =
Users.deliver_user_confirmation_instructions(
user,
&url(~p"/users/confirm/#{&1}")
)
changeset = Users.change_user_registration(user)
{:noreply, socket |> assign(trigger_submit: true) |> assign_form(changeset)}
{:error, %Ecto.Changeset{} = changeset} ->
{:noreply, socket |> assign(check_errors: true) |> assign_form(changeset)}
end
end
def handle_event("validate", %{"user" => user_params}, socket) do
changeset = Users.change_user_registration(%User{}, user_params)
{:noreply, assign_form(socket, Map.put(changeset, :action, :validate))}
end
defp assign_form(socket, %Ecto.Changeset{} = changeset) do
form = to_form(changeset, as: "user")
if changeset.valid? do
assign(socket, form: form, check_errors: false)
else
assign(socket, form: form)
end
end
end

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@ -0,0 +1,89 @@
defmodule ZoeyscomputerWeb.UserResetPasswordLive do
use ZoeyscomputerWeb, :live_view
alias Zoeyscomputer.Users
def render(assigns) do
~H"""
<div class="mx-auto max-w-sm">
<.header class="text-center">Reset Password</.header>
<.simple_form
for={@form}
id="reset_password_form"
phx-submit="reset_password"
phx-change="validate"
>
<.error :if={@form.errors != []}>
Oops, something went wrong! Please check the errors below.
</.error>
<.input field={@form[:password]} type="password" label="New password" required />
<.input
field={@form[:password_confirmation]}
type="password"
label="Confirm new password"
required
/>
<:actions>
<.button phx-disable-with="Resetting..." class="w-full">Reset Password</.button>
</:actions>
</.simple_form>
<p class="text-center text-sm mt-4">
<.link href={~p"/users/register"}>Register</.link>
| <.link href={~p"/users/log_in"}>Log in</.link>
</p>
</div>
"""
end
def mount(params, _session, socket) do
socket = assign_user_and_token(socket, params)
form_source =
case socket.assigns do
%{user: user} ->
Users.change_user_password(user)
_ ->
%{}
end
{:ok, assign_form(socket, form_source), temporary_assigns: [form: nil]}
end
# Do not log in the user after reset password to avoid a
# leaked token giving the user access to the account.
def handle_event("reset_password", %{"user" => user_params}, socket) do
case Users.reset_user_password(socket.assigns.user, user_params) do
{:ok, _} ->
{:noreply,
socket
|> put_flash(:info, "Password reset successfully.")
|> redirect(to: ~p"/users/log_in")}
{:error, changeset} ->
{:noreply, assign_form(socket, Map.put(changeset, :action, :insert))}
end
end
def handle_event("validate", %{"user" => user_params}, socket) do
changeset = Users.change_user_password(socket.assigns.user, user_params)
{:noreply, assign_form(socket, Map.put(changeset, :action, :validate))}
end
defp assign_user_and_token(socket, %{"token" => token}) do
if user = Users.get_user_by_reset_password_token(token) do
assign(socket, user: user, token: token)
else
socket
|> put_flash(:error, "Reset password link is invalid or it has expired.")
|> redirect(to: ~p"/")
end
end
defp assign_form(socket, %{} = source) do
assign(socket, :form, to_form(source, as: "user"))
end
end

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@ -0,0 +1,167 @@
defmodule ZoeyscomputerWeb.UserSettingsLive do
use ZoeyscomputerWeb, :live_view
alias Zoeyscomputer.Users
def render(assigns) do
~H"""
<.header class="text-center">
Account Settings
<:subtitle>Manage your account email address and password settings</:subtitle>
</.header>
<div class="space-y-12 divide-y">
<div>
<.simple_form
for={@email_form}
id="email_form"
phx-submit="update_email"
phx-change="validate_email"
>
<.input field={@email_form[:email]} type="email" label="Email" required />
<.input
field={@email_form[:current_password]}
name="current_password"
id="current_password_for_email"
type="password"
label="Current password"
value={@email_form_current_password}
required
/>
<:actions>
<.button phx-disable-with="Changing...">Change Email</.button>
</:actions>
</.simple_form>
</div>
<div>
<.simple_form
for={@password_form}
id="password_form"
action={~p"/users/log_in?_action=password_updated"}
method="post"
phx-change="validate_password"
phx-submit="update_password"
phx-trigger-action={@trigger_submit}
>
<input
name={@password_form[:email].name}
type="hidden"
id="hidden_user_email"
value={@current_email}
/>
<.input field={@password_form[:password]} type="password" label="New password" required />
<.input
field={@password_form[:password_confirmation]}
type="password"
label="Confirm new password"
/>
<.input
field={@password_form[:current_password]}
name="current_password"
type="password"
label="Current password"
id="current_password_for_password"
value={@current_password}
required
/>
<:actions>
<.button phx-disable-with="Changing...">Change Password</.button>
</:actions>
</.simple_form>
</div>
</div>
"""
end
def mount(%{"token" => token}, _session, socket) do
socket =
case Users.update_user_email(socket.assigns.current_user, token) do
:ok ->
put_flash(socket, :info, "Email changed successfully.")
:error ->
put_flash(socket, :error, "Email change link is invalid or it has expired.")
end
{:ok, push_navigate(socket, to: ~p"/users/settings")}
end
def mount(_params, _session, socket) do
user = socket.assigns.current_user
email_changeset = Users.change_user_email(user)
password_changeset = Users.change_user_password(user)
socket =
socket
|> assign(:current_password, nil)
|> assign(:email_form_current_password, nil)
|> assign(:current_email, user.email)
|> assign(:email_form, to_form(email_changeset))
|> assign(:password_form, to_form(password_changeset))
|> assign(:trigger_submit, false)
{:ok, socket}
end
def handle_event("validate_email", params, socket) do
%{"current_password" => password, "user" => user_params} = params
email_form =
socket.assigns.current_user
|> Users.change_user_email(user_params)
|> Map.put(:action, :validate)
|> to_form()
{:noreply, assign(socket, email_form: email_form, email_form_current_password: password)}
end
def handle_event("update_email", params, socket) do
%{"current_password" => password, "user" => user_params} = params
user = socket.assigns.current_user
case Users.apply_user_email(user, password, user_params) do
{:ok, applied_user} ->
Users.deliver_user_update_email_instructions(
applied_user,
user.email,
&url(~p"/users/settings/confirm_email/#{&1}")
)
info = "A link to confirm your email change has been sent to the new address."
{:noreply, socket |> put_flash(:info, info) |> assign(email_form_current_password: nil)}
{:error, changeset} ->
{:noreply, assign(socket, :email_form, to_form(Map.put(changeset, :action, :insert)))}
end
end
def handle_event("validate_password", params, socket) do
%{"current_password" => password, "user" => user_params} = params
password_form =
socket.assigns.current_user
|> Users.change_user_password(user_params)
|> Map.put(:action, :validate)
|> to_form()
{:noreply, assign(socket, password_form: password_form, current_password: password)}
end
def handle_event("update_password", params, socket) do
%{"current_password" => password, "user" => user_params} = params
user = socket.assigns.current_user
case Users.update_user_password(user, password, user_params) do
{:ok, user} ->
password_form =
user
|> Users.change_user_password(user_params)
|> to_form()
{:noreply, assign(socket, trigger_submit: true, password_form: password_form)}
{:error, changeset} ->
{:noreply, assign(socket, password_form: to_form(changeset))}
end
end
end

View file

@ -1,6 +1,8 @@
defmodule ZoeyscomputerWeb.Router do
use ZoeyscomputerWeb, :router
import ZoeyscomputerWeb.UserAuth
pipeline :browser do
plug :accepts, ["html"]
plug :fetch_session
@ -8,6 +10,7 @@ defmodule ZoeyscomputerWeb.Router do
plug :put_root_layout, html: {ZoeyscomputerWeb.Layouts, :root}
plug :protect_from_forgery
plug :put_secure_browser_headers
plug :fetch_current_user
end
pipeline :api do
@ -41,4 +44,44 @@ defmodule ZoeyscomputerWeb.Router do
forward "/mailbox", Plug.Swoosh.MailboxPreview
end
end
## Authentication routes
scope "/", ZoeyscomputerWeb do
pipe_through [:browser, :redirect_if_user_is_authenticated]
live_session :redirect_if_user_is_authenticated,
on_mount: [{ZoeyscomputerWeb.UserAuth, :redirect_if_user_is_authenticated}] do
live "/users/register", UserRegistrationLive, :new
live "/users/log_in", UserLoginLive, :new
live "/users/reset_password", UserForgotPasswordLive, :new
live "/users/reset_password/:token", UserResetPasswordLive, :edit
end
post "/users/log_in", UserSessionController, :create
end
scope "/", ZoeyscomputerWeb do
pipe_through [:browser, :require_authenticated_user]
live_session :require_authenticated_user,
on_mount: [{ZoeyscomputerWeb.UserAuth, :ensure_authenticated}] do
live "/users/settings", UserSettingsLive, :edit
live "/users/settings/confirm_email/:token", UserSettingsLive, :confirm_email
live "/links", LinkLive.Index
live "/links/new", LinkLive.New
end
end
scope "/", ZoeyscomputerWeb do
pipe_through [:browser]
delete "/users/log_out", UserSessionController, :delete
live_session :current_user,
on_mount: [{ZoeyscomputerWeb.UserAuth, :mount_current_user}] do
live "/users/confirm/:token", UserConfirmationLive, :edit
live "/users/confirm", UserConfirmationInstructionsLive, :new
end
end
end

View file

@ -0,0 +1,229 @@
defmodule ZoeyscomputerWeb.UserAuth do
use ZoeyscomputerWeb, :verified_routes
import Plug.Conn
import Phoenix.Controller
alias Zoeyscomputer.Users
# Make the remember me cookie valid for 60 days.
# If you want bump or reduce this value, also change
# the token expiry itself in UserToken.
@max_age 60 * 60 * 24 * 60
@remember_me_cookie "_zoeyscomputer_web_user_remember_me"
@remember_me_options [sign: true, max_age: @max_age, same_site: "Lax"]
@doc """
Logs the user in.
It renews the session ID and clears the whole session
to avoid fixation attacks. See the renew_session
function to customize this behaviour.
It also sets a `:live_socket_id` key in the session,
so LiveView sessions are identified and automatically
disconnected on log out. The line can be safely removed
if you are not using LiveView.
"""
def log_in_user(conn, user, params \\ %{}) do
token = Users.generate_user_session_token(user)
user_return_to = get_session(conn, :user_return_to)
conn
|> renew_session()
|> put_token_in_session(token)
|> maybe_write_remember_me_cookie(token, params)
|> redirect(to: user_return_to || signed_in_path(conn))
end
defp maybe_write_remember_me_cookie(conn, token, %{"remember_me" => "true"}) do
put_resp_cookie(conn, @remember_me_cookie, token, @remember_me_options)
end
defp maybe_write_remember_me_cookie(conn, _token, _params) do
conn
end
# This function renews the session ID and erases the whole
# session to avoid fixation attacks. If there is any data
# in the session you may want to preserve after log in/log out,
# you must explicitly fetch the session data before clearing
# and then immediately set it after clearing, for example:
#
# defp renew_session(conn) do
# preferred_locale = get_session(conn, :preferred_locale)
#
# conn
# |> configure_session(renew: true)
# |> clear_session()
# |> put_session(:preferred_locale, preferred_locale)
# end
#
defp renew_session(conn) do
delete_csrf_token()
conn
|> configure_session(renew: true)
|> clear_session()
end
@doc """
Logs the user out.
It clears all session data for safety. See renew_session.
"""
def log_out_user(conn) do
user_token = get_session(conn, :user_token)
user_token && Users.delete_user_session_token(user_token)
if live_socket_id = get_session(conn, :live_socket_id) do
ZoeyscomputerWeb.Endpoint.broadcast(live_socket_id, "disconnect", %{})
end
conn
|> renew_session()
|> delete_resp_cookie(@remember_me_cookie)
|> redirect(to: ~p"/")
end
@doc """
Authenticates the user by looking into the session
and remember me token.
"""
def fetch_current_user(conn, _opts) do
{user_token, conn} = ensure_user_token(conn)
user = user_token && Users.get_user_by_session_token(user_token)
assign(conn, :current_user, user)
end
defp ensure_user_token(conn) do
if token = get_session(conn, :user_token) do
{token, conn}
else
conn = fetch_cookies(conn, signed: [@remember_me_cookie])
if token = conn.cookies[@remember_me_cookie] do
{token, put_token_in_session(conn, token)}
else
{nil, conn}
end
end
end
@doc """
Handles mounting and authenticating the current_user in LiveViews.
## `on_mount` arguments
* `:mount_current_user` - Assigns current_user
to socket assigns based on user_token, or nil if
there's no user_token or no matching user.
* `:ensure_authenticated` - Authenticates the user from the session,
and assigns the current_user to socket assigns based
on user_token.
Redirects to login page if there's no logged user.
* `:redirect_if_user_is_authenticated` - Authenticates the user from the session.
Redirects to signed_in_path if there's a logged user.
## Examples
Use the `on_mount` lifecycle macro in LiveViews to mount or authenticate
the current_user:
defmodule ZoeyscomputerWeb.PageLive do
use ZoeyscomputerWeb, :live_view
on_mount {ZoeyscomputerWeb.UserAuth, :mount_current_user}
...
end
Or use the `live_session` of your router to invoke the on_mount callback:
live_session :authenticated, on_mount: [{ZoeyscomputerWeb.UserAuth, :ensure_authenticated}] do
live "/profile", ProfileLive, :index
end
"""
def on_mount(:mount_current_user, _params, session, socket) do
{:cont, mount_current_user(socket, session)}
end
def on_mount(:ensure_authenticated, _params, session, socket) do
socket = mount_current_user(socket, session)
if socket.assigns.current_user do
{:cont, socket}
else
socket =
socket
|> Phoenix.LiveView.put_flash(:error, "You must log in to access this page.")
|> Phoenix.LiveView.redirect(to: ~p"/users/log_in")
{:halt, socket}
end
end
def on_mount(:redirect_if_user_is_authenticated, _params, session, socket) do
socket = mount_current_user(socket, session)
if socket.assigns.current_user do
{:halt, Phoenix.LiveView.redirect(socket, to: signed_in_path(socket))}
else
{:cont, socket}
end
end
defp mount_current_user(socket, session) do
Phoenix.Component.assign_new(socket, :current_user, fn ->
if user_token = session["user_token"] do
Users.get_user_by_session_token(user_token)
end
end)
end
@doc """
Used for routes that require the user to not be authenticated.
"""
def redirect_if_user_is_authenticated(conn, _opts) do
if conn.assigns[:current_user] do
conn
|> redirect(to: signed_in_path(conn))
|> halt()
else
conn
end
end
@doc """
Used for routes that require the user to be authenticated.
If you want to enforce the user email is confirmed before
they use the application at all, here would be a good place.
"""
def require_authenticated_user(conn, _opts) do
if conn.assigns[:current_user] do
conn
else
conn
|> put_flash(:error, "You must log in to access this page.")
|> maybe_store_return_to()
|> redirect(to: ~p"/users/log_in")
|> halt()
end
end
defp put_token_in_session(conn, token) do
conn
|> put_session(:user_token, token)
|> put_session(:live_socket_id, "users_sessions:#{Base.url_encode64(token)}")
end
defp maybe_store_return_to(%{method: "GET"} = conn) do
put_session(conn, :user_return_to, current_path(conn))
end
defp maybe_store_return_to(conn), do: conn
defp signed_in_path(_conn), do: ~p"/"
end