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defmodule NotesAppWeb.CoreComponents do
@moduledoc """
Provides core UI components.
At first glance, this module may seem daunting, but its goal is to provide
core building blocks for your application, such as modals, tables, and
forms. The components consist mostly of markup and are well-documented
with doc strings and declarative assigns. You may customize and style
them in any way you want, based on your application growth and needs.
The default components use Tailwind CSS, a utility-first CSS framework.
See the [Tailwind CSS documentation](https://tailwindcss.com) to learn
how to customize them or feel free to swap in another framework altogether.
Icons are provided by [heroicons](https://heroicons.com). See `icon/1` for usage.
"""
use Phoenix.Component
alias Phoenix.LiveView.JS
# import NotesAppWeb.Gettext
use Gettext, backend: NotesAppWeb.Gettext
@doc """
Renders a modal.
## Examples
<.modal id="confirm-modal">
This is a modal.
</.modal>
JS commands may be passed to the `:on_cancel` to configure
the closing/cancel event, for example:
<.modal id="confirm" on_cancel={JS.navigate(~p"/posts")}>
This is another modal.
</.modal>
"""
attr :id, :string, required: true
attr :show, :boolean, default: false
attr :on_cancel, JS, default: %JS{}
slot :inner_block, required: true
def modal(assigns) do
~H"""
<div
id={@id}
phx-mounted={@show && show_modal(@id)}
phx-remove={hide_modal(@id)}
data-cancel={JS.exec(@on_cancel, "phx-remove")}
class="relative z-50 hidden"
>
<div id={"#{@id}-bg"} class="bg-zinc-50/90 fixed inset-0 transition-opacity" aria-hidden="true" />
<div
class="fixed inset-0 overflow-y-auto"
aria-labelledby={"#{@id}-title"}
aria-describedby={"#{@id}-description"}
role="dialog"
aria-modal="true"
tabindex="0"
>
<div class="flex min-h-full items-center justify-center">
<div class="w-full max-w-3xl p-4 sm:p-6 lg:py-8">
<.focus_wrap
id={"#{@id}-container"}
phx-window-keydown={JS.exec("data-cancel", to: "##{@id}")}
phx-key="escape"
phx-click-away={JS.exec("data-cancel", to: "##{@id}")}
class="shadow-zinc-700/10 ring-zinc-700/10 relative hidden rounded-2xl bg-white p-14 shadow-lg ring-1 transition"
>
<div class="absolute top-6 right-5">
<button
phx-click={JS.exec("data-cancel", to: "##{@id}")}
type="button"
class="-m-3 flex-none p-3 opacity-20 hover:opacity-40"
aria-label={gettext("close")}
>
<.icon name="hero-x-mark-solid" class="h-5 w-5" />
</button>
</div>
<div id={"#{@id}-content"}>
<%= render_slot(@inner_block) %>
</div>
</.focus_wrap>
</div>
</div>
</div>
</div>
"""
end
@doc """
Renders flash notices.
## Examples
<.flash kind={:info} flash={@flash} />
<.flash kind={:info} phx-mounted={show("#flash")}>Welcome Back!</.flash>
"""
attr :id, :string, doc: "the optional id of flash container"
attr :flash, :map, default: %{}, doc: "the map of flash messages to display"
attr :title, :string, default: nil
attr :kind, :atom, values: [:info, :error], doc: "used for styling and flash lookup"
attr :rest, :global, doc: "the arbitrary HTML attributes to add to the flash container"
slot :inner_block, doc: "the optional inner block that renders the flash message"
def flash(assigns) do
assigns = assign_new(assigns, :id, fn -> "flash-#{assigns.kind}" end)
~H"""
<div
:if={msg = render_slot(@inner_block) || Phoenix.Flash.get(@flash, @kind)}
id={@id}
phx-click={JS.push("lv:clear-flash", value: %{key: @kind}) |> hide("##{@id}")}
role="alert"
class={[
"fixed top-2 right-2 mr-2 w-80 sm:w-96 z-50 rounded-lg p-3 ring-1",
@kind == :info && "bg-emerald-50 text-emerald-800 ring-emerald-500 fill-cyan-900",
@kind == :error && "bg-rose-50 text-rose-900 shadow-md ring-rose-500 fill-rose-900"
]}
{@rest}
>
<p :if={@title} class="flex items-center gap-1.5 text-sm font-semibold leading-6">
<.icon :if={@kind == :info} name="hero-information-circle-mini" class="h-4 w-4" />
<.icon :if={@kind == :error} name="hero-exclamation-circle-mini" class="h-4 w-4" />
<%= @title %>
</p>
<p class="mt-2 text-sm leading-5"><%= msg %></p>
<button type="button" class="group absolute top-1 right-1 p-2" aria-label={gettext("close")}>
<.icon name="hero-x-mark-solid" class="h-5 w-5 opacity-40 group-hover:opacity-70" />
</button>
</div>
"""
end
@doc """
Shows the flash group with standard titles and content.
## Examples
<.flash_group flash={@flash} />
"""
attr :flash, :map, required: true, doc: "the map of flash messages"
attr :id, :string, default: "flash-group", doc: "the optional id of flash container"
def flash_group(assigns) do
~H"""
<div id={@id}>
<.flash kind={:info} title={gettext("Success!")} flash={@flash} />
<.flash kind={:error} title={gettext("Error!")} flash={@flash} />
<.flash
id="client-error"
kind={:error}
title={gettext("We can't find the internet")}
phx-disconnected={show(".phx-client-error #client-error")}
phx-connected={hide("#client-error")}
hidden
>
<%= gettext("Attempting to reconnect") %>
<.icon name="hero-arrow-path" class="ml-1 h-3 w-3 animate-spin" />
</.flash>
<.flash
id="server-error"
kind={:error}
title={gettext("Something went wrong!")}
phx-disconnected={show(".phx-server-error #server-error")}
phx-connected={hide("#server-error")}
hidden
>
<%= gettext("Hang in there while we get back on track") %>
<.icon name="hero-arrow-path" class="ml-1 h-3 w-3 animate-spin" />
</.flash>
</div>
"""
end
@doc """
Renders a simple form.
## Examples
<.simple_form for={@form} phx-change="validate" phx-submit="save">
<.input field={@form[:email]} label="Email"/>
<.input field={@form[:username]} label="Username" />
<:actions>
<.button>Save</.button>
</:actions>
</.simple_form>
"""
attr :for, :any, required: true, doc: "the data structure for the form"
attr :as, :any, default: nil, doc: "the server side parameter to collect all input under"
attr :rest, :global,
include: ~w(autocomplete name rel action enctype method novalidate target multipart),
doc: "the arbitrary HTML attributes to apply to the form tag"
slot :inner_block, required: true
slot :actions, doc: "the slot for form actions, such as a submit button"
def simple_form(assigns) do
~H"""
<.form :let={f} for={@for} as={@as} {@rest}>
<div class="mt-10 space-y-8 bg-white">
<%= render_slot(@inner_block, f) %>
<div :for={action <- @actions} class="mt-2 flex items-center justify-between gap-6">
<%= render_slot(action, f) %>
</div>
</div>
</.form>
"""
end
@doc """
Renders a button.
## Examples
<.button>Send!</.button>
<.button phx-click="go" class="ml-2">Send!</.button>
"""
attr :type, :string, default: nil
attr :class, :string, default: nil
attr :rest, :global, include: ~w(disabled form name value)
slot :inner_block, required: true
def button(assigns) do
~H"""
<button
type={@type}
class={[
"phx-submit-loading:opacity-75 rounded-lg bg-zinc-900 hover:bg-zinc-700 py-2 px-3",
"text-sm font-semibold leading-6 text-white active:text-white/80",
@class
]}
{@rest}
>
<%= render_slot(@inner_block) %>
</button>
"""
end
@doc """
Renders an input with label and error messages.
A `Phoenix.HTML.FormField` may be passed as argument,
which is used to retrieve the input name, id, and values.
Otherwise all attributes may be passed explicitly.
## Types
This function accepts all HTML input types, considering that:
* You may also set `type="select"` to render a `<select>` tag
* `type="checkbox"` is used exclusively to render boolean values
* For live file uploads, see `Phoenix.Component.live_file_input/1`
See https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input
for more information. Unsupported types, such as hidden and radio,
are best written directly in your templates.
## Examples
<.input field={@form[:email]} type="email" />
<.input name="my-input" errors={["oh no!"]} />
"""
attr :id, :any, default: nil
attr :name, :any
attr :label, :string, default: nil
attr :value, :any
attr :type, :string,
default: "text",
values: ~w(checkbox color date datetime-local email file month number password
range search select tel text textarea time url week)
attr :field, Phoenix.HTML.FormField,
doc: "a form field struct retrieved from the form, for example: @form[:email]"
attr :errors, :list, default: []
attr :checked, :boolean, doc: "the checked flag for checkbox inputs"
attr :prompt, :string, default: nil, doc: "the prompt for select inputs"
attr :options, :list, doc: "the options to pass to Phoenix.HTML.Form.options_for_select/2"
attr :multiple, :boolean, default: false, doc: "the multiple flag for select inputs"
attr :rest, :global,
include: ~w(accept autocomplete capture cols disabled form list max maxlength min minlength
multiple pattern placeholder readonly required rows size step)
def input(%{field: %Phoenix.HTML.FormField{} = field} = assigns) do
errors = if Phoenix.Component.used_input?(field), do: field.errors, else: []
assigns
|> assign(field: nil, id: assigns.id || field.id)
|> assign(:errors, Enum.map(errors, &translate_error(&1)))
|> assign_new(:name, fn -> if assigns.multiple, do: field.name <> "[]", else: field.name end)
|> assign_new(:value, fn -> field.value end)
|> input()
end
def input(%{type: "checkbox"} = assigns) do
assigns =
assign_new(assigns, :checked, fn ->
Phoenix.HTML.Form.normalize_value("checkbox", assigns[:value])
end)
~H"""
<div>
<label class="flex items-center gap-4 text-sm leading-6 text-zinc-600">
<input type="hidden" name={@name} value="false" disabled={@rest[:disabled]} />
<input
type="checkbox"
id={@id}
name={@name}
value="true"
checked={@checked}
class="rounded border-zinc-300 text-zinc-900 focus:ring-0"
{@rest}
/>
<%= @label %>
</label>
<.error :for={msg <- @errors}><%= msg %></.error>
</div>
"""
end
def input(%{type: "select"} = assigns) do
~H"""
<div>
<.label for={@id}><%= @label %></.label>
<select
id={@id}
name={@name}
class="mt-2 block w-full rounded-md border border-gray-300 bg-white shadow-sm focus:border-zinc-400 focus:ring-0 sm:text-sm"
multiple={@multiple}
{@rest}
>
<option :if={@prompt} value=""><%= @prompt %></option>
<%= Phoenix.HTML.Form.options_for_select(@options, @value) %>
</select>
<.error :for={msg <- @errors}><%= msg %></.error>
</div>
"""
end
def input(%{type: "textarea"} = assigns) do
~H"""
<div>
<.label for={@id}><%= @label %></.label>
<textarea
id={@id}
name={@name}
class={[
"mt-2 block w-full rounded-lg text-zinc-900 focus:ring-0 sm:text-sm sm:leading-6 min-h-[6rem]",
@errors == [] && "border-zinc-300 focus:border-zinc-400",
@errors != [] && "border-rose-400 focus:border-rose-400"
]}
{@rest}
><%= Phoenix.HTML.Form.normalize_value("textarea", @value) %></textarea>
<.error :for={msg <- @errors}><%= msg %></.error>
</div>
"""
end
# All other inputs text, datetime-local, url, password, etc. are handled here...
def input(assigns) do
~H"""
<div>
<.label for={@id}><%= @label %></.label>
<input
type={@type}
name={@name}
id={@id}
value={Phoenix.HTML.Form.normalize_value(@type, @value)}
class={[
"mt-2 block w-full rounded-lg text-zinc-900 focus:ring-0 sm:text-sm sm:leading-6",
@errors == [] && "border-zinc-300 focus:border-zinc-400",
@errors != [] && "border-rose-400 focus:border-rose-400"
]}
{@rest}
/>
<.error :for={msg <- @errors}><%= msg %></.error>
</div>
"""
end
@doc """
Renders a label.
"""
attr :for, :string, default: nil
slot :inner_block, required: true
def label(assigns) do
~H"""
<label for={@for} class="block text-sm font-semibold leading-6 text-zinc-800">
<%= render_slot(@inner_block) %>
</label>
"""
end
@doc """
Generates a generic error message.
"""
slot :inner_block, required: true
def error(assigns) do
~H"""
<p class="mt-3 flex gap-3 text-sm leading-6 text-rose-600">
<.icon name="hero-exclamation-circle-mini" class="mt-0.5 h-5 w-5 flex-none" />
<%= render_slot(@inner_block) %>
</p>
"""
end
@doc """
Renders a header with title.
"""
attr :class, :string, default: nil
slot :inner_block, required: true
slot :subtitle
slot :actions
def header(assigns) do
~H"""
<header class={[@actions != [] && "flex items-center justify-between gap-6", @class]}>
<div>
<h1 class="text-lg font-semibold leading-8 text-zinc-800">
<%= render_slot(@inner_block) %>
</h1>
<p :if={@subtitle != []} class="mt-2 text-sm leading-6 text-zinc-600">
<%= render_slot(@subtitle) %>
</p>
</div>
<div class="flex-none"><%= render_slot(@actions) %></div>
</header>
"""
end
@doc ~S"""
Renders a table with generic styling.
## Examples
<.table id="users" rows={@users}>
<:col :let={user} label="id"><%= user.id %></:col>
<:col :let={user} label="username"><%= user.username %></:col>
</.table>
"""
attr :id, :string, required: true
attr :rows, :list, required: true
attr :row_id, :any, default: nil, doc: "the function for generating the row id"
attr :row_click, :any, default: nil, doc: "the function for handling phx-click on each row"
attr :row_item, :any,
default: &Function.identity/1,
doc: "the function for mapping each row before calling the :col and :action slots"
slot :col, required: true do
attr :label, :string
end
slot :action, doc: "the slot for showing user actions in the last table column"
def table(assigns) do
assigns =
with %{rows: %Phoenix.LiveView.LiveStream{}} <- assigns do
assign(assigns, row_id: assigns.row_id || fn {id, _item} -> id end)
end
~H"""
<div class="overflow-y-auto px-4 sm:overflow-visible sm:px-0">
<table class="w-[40rem] mt-11 sm:w-full">
<thead class="text-sm text-left leading-6 text-zinc-500">
<tr>
<th :for={col <- @col} class="p-0 pb-4 pr-6 font-normal"><%= col[:label] %></th>
<th :if={@action != []} class="relative p-0 pb-4">
<span class="sr-only"><%= gettext("Actions") %></span>
</th>
</tr>
</thead>
<tbody
id={@id}
phx-update={match?(%Phoenix.LiveView.LiveStream{}, @rows) && "stream"}
class="relative divide-y divide-zinc-100 border-t border-zinc-200 text-sm leading-6 text-zinc-700"
>
<tr :for={row <- @rows} id={@row_id && @row_id.(row)} class="group hover:bg-zinc-50">
<td
:for={{col, i} <- Enum.with_index(@col)}
phx-click={@row_click && @row_click.(row)}
class={["relative p-0", @row_click && "hover:cursor-pointer"]}
>
<div class="block py-4 pr-6">
<span class="absolute -inset-y-px right-0 -left-4 group-hover:bg-zinc-50 sm:rounded-l-xl" />
<span class={["relative", i == 0 && "font-semibold text-zinc-900"]}>
<%= render_slot(col, @row_item.(row)) %>
</span>
</div>
</td>
<td :if={@action != []} class="relative w-14 p-0">
<div class="relative whitespace-nowrap py-4 text-right text-sm font-medium">
<span class="absolute -inset-y-px -right-4 left-0 group-hover:bg-zinc-50 sm:rounded-r-xl" />
<span
:for={action <- @action}
class="relative ml-4 font-semibold leading-6 text-zinc-900 hover:text-zinc-700"
>
<%= render_slot(action, @row_item.(row)) %>
</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
"""
end
@doc """
Renders a data list.
## Examples
<.list>
<:item title="Title"><%= @post.title %></:item>
<:item title="Views"><%= @post.views %></:item>
</.list>
"""
slot :item, required: true do
attr :title, :string, required: true
end
def list(assigns) do
~H"""
<div class="mt-14">
<dl class="-my-4 divide-y divide-zinc-100">
<div :for={item <- @item} class="flex gap-4 py-4 text-sm leading-6 sm:gap-8">
<dt class="w-1/4 flex-none text-zinc-500"><%= item.title %></dt>
<dd class="text-zinc-700"><%= render_slot(item) %></dd>
</div>
</dl>
</div>
"""
end
@doc """
Renders a back navigation link.
## Examples
<.back navigate={~p"/posts"}>Back to posts</.back>
"""
attr :navigate, :any, required: true
slot :inner_block, required: true
def back(assigns) do
~H"""
<div class="mt-16">
<.link
navigate={@navigate}
class="text-sm font-semibold leading-6 text-zinc-900 hover:text-zinc-700"
>
<.icon name="hero-arrow-left-solid" class="h-3 w-3" />
<%= render_slot(@inner_block) %>
</.link>
</div>
"""
end
@doc """
Renders a [Heroicon](https://heroicons.com).
Heroicons come in three styles outline, solid, and mini.
By default, the outline style is used, but solid and mini may
be applied by using the `-solid` and `-mini` suffix.
You can customize the size and colors of the icons by setting
width, height, and background color classes.
Icons are extracted from the `deps/heroicons` directory and bundled within
your compiled app.css by the plugin in your `assets/tailwind.config.js`.
## Examples
<.icon name="hero-x-mark-solid" />
<.icon name="hero-arrow-path" class="ml-1 w-3 h-3 animate-spin" />
"""
attr :name, :string, required: true
attr :class, :string, default: nil
def icon(%{name: "hero-" <> _} = assigns) do
~H"""
<span class={[@name, @class]} />
"""
end
## JS Commands
def show(js \\ %JS{}, selector) do
JS.show(js,
to: selector,
time: 300,
transition:
{"transition-all transform ease-out duration-300",
"opacity-0 translate-y-4 sm:translate-y-0 sm:scale-95",
"opacity-100 translate-y-0 sm:scale-100"}
)
end
def hide(js \\ %JS{}, selector) do
JS.hide(js,
to: selector,
time: 200,
transition:
{"transition-all transform ease-in duration-200",
"opacity-100 translate-y-0 sm:scale-100",
"opacity-0 translate-y-4 sm:translate-y-0 sm:scale-95"}
)
end
def show_modal(js \\ %JS{}, id) when is_binary(id) do
js
|> JS.show(to: "##{id}")
|> JS.show(
to: "##{id}-bg",
time: 300,
transition: {"transition-all transform ease-out duration-300", "opacity-0", "opacity-100"}
)
|> show("##{id}-container")
|> JS.add_class("overflow-hidden", to: "body")
|> JS.focus_first(to: "##{id}-content")
end
def hide_modal(js \\ %JS{}, id) do
js
|> JS.hide(
to: "##{id}-bg",
transition: {"transition-all transform ease-in duration-200", "opacity-100", "opacity-0"}
)
|> hide("##{id}-container")
|> JS.hide(to: "##{id}", transition: {"block", "block", "hidden"})
|> JS.remove_class("overflow-hidden", to: "body")
|> JS.pop_focus()
end
@doc """
Translates an error message using gettext.
"""
def translate_error({msg, opts}) do
# When using gettext, we typically pass the strings we want
# to translate as a static argument:
#
# # Translate the number of files with plural rules
# dngettext("errors", "1 file", "%{count} files", count)
#
# However the error messages in our forms and APIs are generated
# dynamically, so we need to translate them by calling Gettext
# with our gettext backend as first argument. Translations are
# available in the errors.po file (as we use the "errors" domain).
if count = opts[:count] do
Gettext.dngettext(NotesAppWeb.Gettext, "errors", msg, msg, count, opts)
else
Gettext.dgettext(NotesAppWeb.Gettext, "errors", msg, opts)
end
end
@doc """
Translates the errors for a field from a keyword list of errors.
"""
def translate_errors(errors, field) when is_list(errors) do
for {^field, {msg, opts}} <- errors, do: translate_error({msg, opts})
end
end

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defmodule NotesAppWeb.Layouts do
@moduledoc """
This module holds different layouts used by your application.
See the `layouts` directory for all templates available.
The "root" layout is a skeleton rendered as part of the
application router. The "app" layout is set as the default
layout on both `use NotesAppWeb, :controller` and
`use NotesAppWeb, :live_view`.
"""
use NotesAppWeb, :html
embed_templates "layouts/*"
end

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<header class="px-4 sm:px-6 lg:px-8">
<div class="flex items-center justify-between border-b border-zinc-100 py-3 text-sm">
<div class="flex items-center gap-4">
<a href="/">
<img src={~p"/images/logo.svg"} width="36" />
</a>
<p class="bg-brand/5 text-brand rounded-full px-2 font-medium leading-6">
v<%= Application.spec(:phoenix, :vsn) %>
</p>
</div>
<div class="flex items-center gap-4 font-semibold leading-6 text-zinc-900">
<a href="https://twitter.com/elixirphoenix" class="hover:text-zinc-700">
@elixirphoenix
</a>
<a href="https://github.com/phoenixframework/phoenix" class="hover:text-zinc-700">
GitHub
</a>
<a
href="https://hexdocs.pm/phoenix/overview.html"
class="rounded-lg bg-zinc-100 px-2 py-1 hover:bg-zinc-200/80"
>
Get Started <span aria-hidden="true">&rarr;</span>
</a>
</div>
</div>
</header>
<main class="px-4 py-20 sm:px-6 lg:px-8">
<div class="mx-auto max-w-2xl">
<.flash_group flash={@flash} />
<%= @inner_content %>
</div>
</main>

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<!DOCTYPE html>
<html lang="en" class="[scrollbar-gutter:stable]">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="csrf-token" content={get_csrf_token()} />
<.live_title suffix=" · Phoenix Framework">
<%= assigns[:page_title] || "NotesApp" %>
</.live_title>
<link phx-track-static rel="stylesheet" href={~p"/assets/app.css"} />
<script defer phx-track-static type="text/javascript" src={~p"/assets/app.js"}>
</script>
</head>
<body class="bg-white text-black dark:bg-gray-800 dark:text-white">
<ul class="relative z-10 flex items-center gap-4 px-4 sm:px-6 lg:px-8 justify-end dark:bg-gray-900">
<%= if @current_user do %>
<li class="text-[0.8125rem] leading-6 text-zinc-900 dark:text-zinc-300">
<%= @current_user.email %>
</li>
<li>
<.link
href={~p"/users/settings"}
class="text-[0.8125rem] leading-6 text-zinc-900 dark:text-zinc-300 font-semibold hover:text-zinc-700 dark:hover:text-zinc-400"
>
Settings
</.link>
</li>
<li>
<.link
href={~p"/users/log_out"}
method="delete"
class="text-[0.8125rem] leading-6 text-zinc-900 dark:text-zinc-300 font-semibold hover:text-zinc-700 dark:hover:text-zinc-400"
>
Log out
</.link>
</li>
<% else %>
<li>
<.link
href={~p"/users/register"}
class="text-[0.8125rem] leading-6 text-zinc-900 dark:text-zinc-300 font-semibold hover:text-zinc-700 dark:hover:text-zinc-400"
>
Register
</.link>
</li>
<li>
<.link
href={~p"/users/log_in"}
class="text-[0.8125rem] leading-6 text-zinc-900 dark:text-zinc-300 font-semibold hover:text-zinc-700 dark:hover:text-zinc-400"
>
Log in
</.link>
</li>
<% end %>
</ul>
<%= @inner_content %>
</body>
</html>

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@ -0,0 +1,24 @@
defmodule NotesAppWeb.ErrorHTML do
@moduledoc """
This module is invoked by your endpoint in case of errors on HTML requests.
See config/config.exs.
"""
use NotesAppWeb, :html
# If you want to customize your error pages,
# uncomment the embed_templates/1 call below
# and add pages to the error directory:
#
# * lib/notes_app_web/controllers/error_html/404.html.heex
# * lib/notes_app_web/controllers/error_html/500.html.heex
#
# embed_templates "error_html/*"
# The default is to render a plain text page based on
# the template name. For example, "404.html" becomes
# "Not Found".
def render(template, _assigns) do
Phoenix.Controller.status_message_from_template(template)
end
end

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@ -0,0 +1,21 @@
defmodule NotesAppWeb.ErrorJSON do
@moduledoc """
This module is invoked by your endpoint in case of errors on JSON requests.
See config/config.exs.
"""
# If you want to customize a particular status code,
# you may add your own clauses, such as:
#
# def render("500.json", _assigns) do
# %{errors: %{detail: "Internal Server Error"}}
# end
# By default, Phoenix returns the status message from
# the template name. For example, "404.json" becomes
# "Not Found".
def render(template, _assigns) do
%{errors: %{detail: Phoenix.Controller.status_message_from_template(template)}}
end
end

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defmodule NotesAppWeb.NoteController do
use NotesAppWeb, :controller
alias NotesApp.Notes
alias NotesApp.Notes.Note
import NotesAppWeb.UserAuth
plug :require_authenticated_user
def index(conn, _params) do
notes = Notes.list_notes()
render(conn, :index, notes: notes)
end
def new(conn, _params) do
changeset = Notes.change_note(%Note{})
render(conn, :new, changeset: changeset)
end
def create(conn, %{"note" => note_params}) do
case Notes.create_note(note_params) do
{:ok, note} ->
conn
|> put_flash(:info, "Note created successfully.")
|> redirect(to: ~p"/notes/#{note}")
{:error, %Ecto.Changeset{} = changeset} ->
render(conn, :new, changeset: changeset)
end
end
def show(conn, %{"id" => id}) do
note = Notes.get_note!(id)
render(conn, :show, note: note)
end
def edit(conn, %{"id" => id}) do
note = Notes.get_note!(id)
changeset = Notes.change_note(note)
render(conn, :edit, note: note, changeset: changeset)
end
def update(conn, %{"id" => id, "note" => note_params}) do
note = Notes.get_note!(id)
case Notes.update_note(note, note_params) do
{:ok, note} ->
conn
|> put_flash(:info, "Note updated successfully.")
|> redirect(to: ~p"/notes/#{note}")
{:error, %Ecto.Changeset{} = changeset} ->
render(conn, :edit, note: note, changeset: changeset)
end
end
def delete(conn, %{"id" => id}) do
note = Notes.get_note!(id)
{:ok, _note} = Notes.delete_note(note)
conn
|> put_flash(:info, "Note deleted successfully.")
|> redirect(to: ~p"/notes")
end
end

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@ -0,0 +1,13 @@
defmodule NotesAppWeb.NoteHTML do
use NotesAppWeb, :html
embed_templates "note_html/*"
@doc """
Renders a note form.
"""
attr :changeset, Ecto.Changeset, required: true
attr :action, :string, required: true
def note_form(assigns)
end

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@ -0,0 +1,8 @@
<.header>
Edit Note <%= @note.id %>
<:subtitle>Use this form to manage note records in your database.</:subtitle>
</.header>
<.note_form changeset={@changeset} action={~p"/notes/#{@note}"} />
<.back navigate={~p"/notes"}>Back to notes</.back>

View file

@ -0,0 +1,24 @@
<.header>
Listing Notes
<:actions>
<.link href={~p"/notes/new"}>
<.button>New Note</.button>
</.link>
</:actions>
</.header>
<.table id="notes" rows={@notes} row_click={&JS.navigate(~p"/notes/#{&1}")}>
<:col :let={note} label="Title"><%= note.title %></:col>
<:col :let={note} label="Content"><%= note.content %></:col>
<:action :let={note}>
<div class="sr-only">
<.link navigate={~p"/notes/#{note}"}>Show</.link>
</div>
<.link navigate={~p"/notes/#{note}/edit"}>Edit</.link>
</:action>
<:action :let={note}>
<.link href={~p"/notes/#{note}"} method="delete" data-confirm="Are you sure?">
Delete
</.link>
</:action>
</.table>

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@ -0,0 +1,8 @@
<.header>
New Note
<:subtitle>Use this form to manage note records in your database.</:subtitle>
</.header>
<.note_form changeset={@changeset} action={~p"/notes"} />
<.back navigate={~p"/notes"}>Back to notes</.back>

View file

@ -0,0 +1,10 @@
<.simple_form :let={f} for={@changeset} action={@action}>
<.error :if={@changeset.action}>
Oops, something went wrong! Please check the errors below.
</.error>
<.input field={f[:title]} type="text" label="Title" />
<.input field={f[:content]} type="text" label="Content" />
<:actions>
<.button>Save Note</.button>
</:actions>
</.simple_form>

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@ -0,0 +1,18 @@
<.header>
<%= @note.title %>
<:subtitle><%= @note.updated_at %></:subtitle>
<:actions>
<.link href={~p"/notes/#{@note}/edit"}>
<.button>Edit note</.button>
</.link>
</:actions>
</.header>
<p><%= @note.content %></p>
<.list>
<:item title="Title"><%= @note.title %></:item>
<:item title="Content"><%= @note.content %></:item>
</.list>
<.back navigate={~p"/notes"}>Back to notes</.back>

View file

@ -0,0 +1,9 @@
defmodule NotesAppWeb.PageController do
use NotesAppWeb, :controller
def home(conn, _params) do
# The home page is often custom made,
# so skip the default app layout.
render(conn, :home, layout: false)
end
end

View file

@ -0,0 +1,10 @@
defmodule NotesAppWeb.PageHTML do
@moduledoc """
This module contains pages rendered by PageController.
See the `page_html` directory for all templates available.
"""
use NotesAppWeb, :html
embed_templates "page_html/*"
end

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@ -0,0 +1,222 @@
<.flash_group flash={@flash} />
<div class="left-[40rem] fixed inset-y-0 right-0 z-0 hidden lg:block xl:left-[50rem]">
<svg
viewBox="0 0 1480 957"
fill="none"
aria-hidden="true"
class="absolute inset-0 h-full w-full"
preserveAspectRatio="xMinYMid slice"
>
<path fill="#EE7868" d="M0 0h1480v957H0z" />
<path
d="M137.542 466.27c-582.851-48.41-988.806-82.127-1608.412 658.2l67.39 810 3083.15-256.51L1535.94-49.622l-98.36 8.183C1269.29 281.468 734.115 515.799 146.47 467.012l-8.928-.742Z"
fill="#FF9F92"
/>
<path
d="M371.028 528.664C-169.369 304.988-545.754 149.198-1361.45 665.565l-182.58 792.025 3014.73 694.98 389.42-1689.25-96.18-22.171C1505.28 697.438 924.153 757.586 379.305 532.09l-8.277-3.426Z"
fill="#FA8372"
/>
<path
d="M359.326 571.714C-104.765 215.795-428.003-32.102-1349.55 255.554l-282.3 1224.596 3047.04 722.01 312.24-1354.467C1411.25 1028.3 834.355 935.995 366.435 577.166l-7.109-5.452Z"
fill="#E96856"
fill-opacity=".6"
/>
<path
d="M1593.87 1236.88c-352.15 92.63-885.498-145.85-1244.602-613.557l-5.455-7.105C-12.347 152.31-260.41-170.8-1225-131.458l-368.63 1599.048 3057.19 704.76 130.31-935.47Z"
fill="#C42652"
fill-opacity=".2"
/>
<path
d="M1411.91 1526.93c-363.79 15.71-834.312-330.6-1085.883-863.909l-3.822-8.102C72.704 125.95-101.074-242.476-1052.01-408.907l-699.85 1484.267 2837.75 1338.01 326.02-886.44Z"
fill="#A41C42"
fill-opacity=".2"
/>
<path
d="M1116.26 1863.69c-355.457-78.98-720.318-535.27-825.287-1115.521l-1.594-8.816C185.286 163.833 112.786-237.016-762.678-643.898L-1822.83 608.665 571.922 2635.55l544.338-771.86Z"
fill="#A41C42"
fill-opacity=".2"
/>
</svg>
</div>
<div class="px-4 py-10 sm:px-6 sm:py-28 lg:px-8 xl:px-28 xl:py-32">
<div class="mx-auto max-w-xl lg:mx-0">
<svg viewBox="0 0 71 48" class="h-12" aria-hidden="true">
<path
d="m26.371 33.477-.552-.1c-3.92-.729-6.397-3.1-7.57-6.829-.733-2.324.597-4.035 3.035-4.148 1.995-.092 3.362 1.055 4.57 2.39 1.557 1.72 2.984 3.558 4.514 5.305 2.202 2.515 4.797 4.134 8.347 3.634 3.183-.448 5.958-1.725 8.371-3.828.363-.316.761-.592 1.144-.886l-.241-.284c-2.027.63-4.093.841-6.205.735-3.195-.16-6.24-.828-8.964-2.582-2.486-1.601-4.319-3.746-5.19-6.611-.704-2.315.736-3.934 3.135-3.6.948.133 1.746.56 2.463 1.165.583.493 1.143 1.015 1.738 1.493 2.8 2.25 6.712 2.375 10.265-.068-5.842-.026-9.817-3.24-13.308-7.313-1.366-1.594-2.7-3.216-4.095-4.785-2.698-3.036-5.692-5.71-9.79-6.623C12.8-.623 7.745.14 2.893 2.361 1.926 2.804.997 3.319 0 4.149c.494 0 .763.006 1.032 0 2.446-.064 4.28 1.023 5.602 3.024.962 1.457 1.415 3.104 1.761 4.798.513 2.515.247 5.078.544 7.605.761 6.494 4.08 11.026 10.26 13.346 2.267.852 4.591 1.135 7.172.555ZM10.751 3.852c-.976.246-1.756-.148-2.56-.962 1.377-.343 2.592-.476 3.897-.528-.107.848-.607 1.306-1.336 1.49Zm32.002 37.924c-.085-.626-.62-.901-1.04-1.228-1.857-1.446-4.03-1.958-6.333-2-1.375-.026-2.735-.128-4.031-.61-.595-.22-1.26-.505-1.244-1.272.015-.78.693-1 1.31-1.184.505-.15 1.026-.247 1.6-.382-1.46-.936-2.886-1.065-4.787-.3-2.993 1.202-5.943 1.06-8.926-.017-1.684-.608-3.179-1.563-4.735-2.408l-.043.03a2.96 2.96 0 0 0 .04-.029c-.038-.117-.107-.12-.197-.054l.122.107c1.29 2.115 3.034 3.817 5.004 5.271 3.793 2.8 7.936 4.471 12.784 3.73A66.714 66.714 0 0 1 37 40.877c1.98-.16 3.866.398 5.753.899Zm-9.14-30.345c-.105-.076-.206-.266-.42-.069 1.745 2.36 3.985 4.098 6.683 5.193 4.354 1.767 8.773 2.07 13.293.51 3.51-1.21 6.033-.028 7.343 3.38.19-3.955-2.137-6.837-5.843-7.401-2.084-.318-4.01.373-5.962.94-5.434 1.575-10.485.798-15.094-2.553Zm27.085 15.425c.708.059 1.416.123 2.124.185-1.6-1.405-3.55-1.517-5.523-1.404-3.003.17-5.167 1.903-7.14 3.972-1.739 1.824-3.31 3.87-5.903 4.604.043.078.054.117.066.117.35.005.699.021 1.047.005 3.768-.17 7.317-.965 10.14-3.7.89-.86 1.685-1.817 2.544-2.71.716-.746 1.584-1.159 2.645-1.07Zm-8.753-4.67c-2.812.246-5.254 1.409-7.548 2.943-1.766 1.18-3.654 1.738-5.776 1.37-.374-.066-.75-.114-1.124-.17l-.013.156c.135.07.265.151.405.207.354.14.702.308 1.07.395 4.083.971 7.992.474 11.516-1.803 2.221-1.435 4.521-1.707 7.013-1.336.252.038.503.083.756.107.234.022.479.255.795.003-2.179-1.574-4.526-2.096-7.094-1.872Zm-10.049-9.544c1.475.051 2.943-.142 4.486-1.059-.452.04-.643.04-.827.076-2.126.424-4.033-.04-5.733-1.383-.623-.493-1.257-.974-1.889-1.457-2.503-1.914-5.374-2.555-8.514-2.5.05.154.054.26.108.315 3.417 3.455 7.371 5.836 12.369 6.008Zm24.727 17.731c-2.114-2.097-4.952-2.367-7.578-.537 1.738.078 3.043.632 4.101 1.728.374.388.763.768 1.182 1.106 1.6 1.29 4.311 1.352 5.896.155-1.861-.726-1.861-.726-3.601-2.452Zm-21.058 16.06c-1.858-3.46-4.981-4.24-8.59-4.008a9.667 9.667 0 0 1 2.977 1.39c.84.586 1.547 1.311 2.243 2.055 1.38 1.473 3.534 2.376 4.962 2.07-.656-.412-1.238-.848-1.592-1.507Zm17.29-19.32c0-.023.001-.045.003-.068l-.006.006.006-.006-.036-.004.021.018.012.053Zm-20 14.744a7.61 7.61 0 0 0-.072-.041.127.127 0 0 0 .015.043c.005.008.038 0 .058-.002Zm-.072-.041-.008-.034-.008.01.008-.01-.022-.006.005.026.024.014Z"
fill="#FD4F00"
/>
</svg>
<h1 class="text-brand mt-10 flex items-center text-sm font-semibold leading-6">
Phoenix Framework
<small class="bg-brand/5 text-[0.8125rem] ml-3 rounded-full px-2 font-medium leading-6">
v<%= Application.spec(:phoenix, :vsn) %>
</small>
</h1>
<p class="text-[2rem] mt-4 font-semibold leading-10 tracking-tighter text-zinc-900 text-balance">
Peace of mind from prototype to production.
</p>
<p class="mt-4 text-base leading-7 text-zinc-600">
Build rich, interactive web applications quickly, with less code and fewer moving parts. Join our growing community of developers using Phoenix to craft APIs, HTML5 apps and more, for fun or at scale.
</p>
<div class="flex">
<div class="w-full sm:w-auto">
<div class="mt-10 grid grid-cols-1 gap-x-6 gap-y-4 sm:grid-cols-3">
<a
href="https://hexdocs.pm/phoenix/overview.html"
class="group relative rounded-2xl px-6 py-4 text-sm font-semibold leading-6 text-zinc-900 sm:py-6"
>
<span class="absolute inset-0 rounded-2xl bg-zinc-50 transition group-hover:bg-zinc-100 sm:group-hover:scale-105">
</span>
<span class="relative flex items-center gap-4 sm:flex-col">
<svg viewBox="0 0 24 24" fill="none" aria-hidden="true" class="h-6 w-6">
<path d="m12 4 10-2v18l-10 2V4Z" fill="#18181B" fill-opacity=".15" />
<path
d="M12 4 2 2v18l10 2m0-18v18m0-18 10-2v18l-10 2"
stroke="#18181B"
stroke-width="2"
stroke-linecap="round"
stroke-linejoin="round"
/>
</svg>
Guides &amp; Docs
</span>
</a>
<a
href="https://github.com/phoenixframework/phoenix"
class="group relative rounded-2xl px-6 py-4 text-sm font-semibold leading-6 text-zinc-900 sm:py-6"
>
<span class="absolute inset-0 rounded-2xl bg-zinc-50 transition group-hover:bg-zinc-100 sm:group-hover:scale-105">
</span>
<span class="relative flex items-center gap-4 sm:flex-col">
<svg viewBox="0 0 24 24" aria-hidden="true" class="h-6 w-6">
<path
fill-rule="evenodd"
clip-rule="evenodd"
d="M12 0C5.37 0 0 5.506 0 12.303c0 5.445 3.435 10.043 8.205 11.674.6.107.825-.262.825-.585 0-.292-.015-1.261-.015-2.291C6 21.67 5.22 20.346 4.98 19.654c-.135-.354-.72-1.446-1.23-1.738-.42-.23-1.02-.8-.015-.815.945-.015 1.62.892 1.845 1.261 1.08 1.86 2.805 1.338 3.495 1.015.105-.8.42-1.338.765-1.645-2.67-.308-5.46-1.37-5.46-6.075 0-1.338.465-2.446 1.23-3.307-.12-.308-.54-1.569.12-3.26 0 0 1.005-.323 3.3 1.26.96-.276 1.98-.415 3-.415s2.04.139 3 .416c2.295-1.6 3.3-1.261 3.3-1.261.66 1.691.24 2.952.12 3.26.765.861 1.23 1.953 1.23 3.307 0 4.721-2.805 5.767-5.475 6.075.435.384.81 1.122.81 2.276 0 1.645-.015 2.968-.015 3.383 0 .323.225.707.825.585a12.047 12.047 0 0 0 5.919-4.489A12.536 12.536 0 0 0 24 12.304C24 5.505 18.63 0 12 0Z"
fill="#18181B"
/>
</svg>
Source Code
</span>
</a>
<a
href={"https://github.com/phoenixframework/phoenix/blob/v#{Application.spec(:phoenix, :vsn)}/CHANGELOG.md"}
class="group relative rounded-2xl px-6 py-4 text-sm font-semibold leading-6 text-zinc-900 sm:py-6"
>
<span class="absolute inset-0 rounded-2xl bg-zinc-50 transition group-hover:bg-zinc-100 sm:group-hover:scale-105">
</span>
<span class="relative flex items-center gap-4 sm:flex-col">
<svg viewBox="0 0 24 24" fill="none" aria-hidden="true" class="h-6 w-6">
<path
d="M12 1v6M12 17v6"
stroke="#18181B"
stroke-width="2"
stroke-linecap="round"
stroke-linejoin="round"
/>
<circle
cx="12"
cy="12"
r="4"
fill="#18181B"
fill-opacity=".15"
stroke="#18181B"
stroke-width="2"
stroke-linecap="round"
stroke-linejoin="round"
/>
</svg>
Changelog
</span>
</a>
</div>
<div class="mt-10 grid grid-cols-1 gap-y-4 text-sm leading-6 text-zinc-700 sm:grid-cols-2">
<div>
<a
href="https://twitter.com/elixirphoenix"
class="group -mx-2 -my-0.5 inline-flex items-center gap-3 rounded-lg px-2 py-0.5 hover:bg-zinc-50 hover:text-zinc-900"
>
<svg
viewBox="0 0 16 16"
aria-hidden="true"
class="h-4 w-4 fill-zinc-400 group-hover:fill-zinc-600"
>
<path d="M5.403 14c5.283 0 8.172-4.617 8.172-8.62 0-.131 0-.262-.008-.391A6.033 6.033 0 0 0 15 3.419a5.503 5.503 0 0 1-1.65.477 3.018 3.018 0 0 0 1.263-1.676 5.579 5.579 0 0 1-1.824.736 2.832 2.832 0 0 0-1.63-.916 2.746 2.746 0 0 0-1.821.319A2.973 2.973 0 0 0 8.076 3.78a3.185 3.185 0 0 0-.182 1.938 7.826 7.826 0 0 1-3.279-.918 8.253 8.253 0 0 1-2.64-2.247 3.176 3.176 0 0 0-.315 2.208 3.037 3.037 0 0 0 1.203 1.836A2.739 2.739 0 0 1 1.56 6.22v.038c0 .7.23 1.377.65 1.919.42.54 1.004.912 1.654 1.05-.423.122-.866.14-1.297.052.184.602.541 1.129 1.022 1.506a2.78 2.78 0 0 0 1.662.598 5.656 5.656 0 0 1-2.007 1.074A5.475 5.475 0 0 1 1 12.64a7.827 7.827 0 0 0 4.403 1.358" />
</svg>
Follow on Twitter
</a>
</div>
<div>
<a
href="https://elixirforum.com"
class="group -mx-2 -my-0.5 inline-flex items-center gap-3 rounded-lg px-2 py-0.5 hover:bg-zinc-50 hover:text-zinc-900"
>
<svg
viewBox="0 0 16 16"
aria-hidden="true"
class="h-4 w-4 fill-zinc-400 group-hover:fill-zinc-600"
>
<path d="M8 13.833c3.866 0 7-2.873 7-6.416C15 3.873 11.866 1 8 1S1 3.873 1 7.417c0 1.081.292 2.1.808 2.995.606 1.05.806 2.399.086 3.375l-.208.283c-.285.386-.01.905.465.85.852-.098 2.048-.318 3.137-.81a3.717 3.717 0 0 1 1.91-.318c.263.027.53.041.802.041Z" />
</svg>
Discuss on the Elixir Forum
</a>
</div>
<div>
<a
href="https://web.libera.chat/#elixir"
class="group -mx-2 -my-0.5 inline-flex items-center gap-3 rounded-lg px-2 py-0.5 hover:bg-zinc-50 hover:text-zinc-900"
>
<svg
viewBox="0 0 16 16"
aria-hidden="true"
class="h-4 w-4 fill-zinc-400 group-hover:fill-zinc-600"
>
<path
fill-rule="evenodd"
clip-rule="evenodd"
d="M6.356 2.007a.75.75 0 0 1 .637.849l-1.5 10.5a.75.75 0 1 1-1.485-.212l1.5-10.5a.75.75 0 0 1 .848-.637ZM11.356 2.008a.75.75 0 0 1 .637.848l-1.5 10.5a.75.75 0 0 1-1.485-.212l1.5-10.5a.75.75 0 0 1 .848-.636Z"
/>
<path
fill-rule="evenodd"
clip-rule="evenodd"
d="M14 5.25a.75.75 0 0 1-.75.75h-9.5a.75.75 0 0 1 0-1.5h9.5a.75.75 0 0 1 .75.75ZM13 10.75a.75.75 0 0 1-.75.75h-9.5a.75.75 0 0 1 0-1.5h9.5a.75.75 0 0 1 .75.75Z"
/>
</svg>
Chat on Libera IRC
</a>
</div>
<div>
<a
href="https://discord.gg/elixir"
class="group -mx-2 -my-0.5 inline-flex items-center gap-3 rounded-lg px-2 py-0.5 hover:bg-zinc-50 hover:text-zinc-900"
>
<svg
viewBox="0 0 16 16"
aria-hidden="true"
class="h-4 w-4 fill-zinc-400 group-hover:fill-zinc-600"
>
<path d="M13.545 2.995c-1.02-.46-2.114-.8-3.257-.994a.05.05 0 0 0-.052.024c-.141.246-.297.567-.406.82a12.377 12.377 0 0 0-3.658 0 8.238 8.238 0 0 0-.412-.82.052.052 0 0 0-.052-.024 13.315 13.315 0 0 0-3.257.994.046.046 0 0 0-.021.018C.356 6.063-.213 9.036.066 11.973c.001.015.01.029.02.038a13.353 13.353 0 0 0 3.996 1.987.052.052 0 0 0 .056-.018c.308-.414.582-.85.818-1.309a.05.05 0 0 0-.028-.069 8.808 8.808 0 0 1-1.248-.585.05.05 0 0 1-.005-.084c.084-.062.168-.126.248-.191a.05.05 0 0 1 .051-.007c2.619 1.176 5.454 1.176 8.041 0a.05.05 0 0 1 .053.006c.08.065.164.13.248.192a.05.05 0 0 1-.004.084c-.399.23-.813.423-1.249.585a.05.05 0 0 0-.027.07c.24.457.514.893.817 1.307a.051.051 0 0 0 .056.019 13.31 13.31 0 0 0 4.001-1.987.05.05 0 0 0 .021-.037c.334-3.396-.559-6.345-2.365-8.96a.04.04 0 0 0-.021-.02Zm-8.198 7.19c-.789 0-1.438-.712-1.438-1.587 0-.874.637-1.586 1.438-1.586.807 0 1.45.718 1.438 1.586 0 .875-.637 1.587-1.438 1.587Zm5.316 0c-.788 0-1.438-.712-1.438-1.587 0-.874.637-1.586 1.438-1.586.807 0 1.45.718 1.438 1.586 0 .875-.63 1.587-1.438 1.587Z" />
</svg>
Join our Discord server
</a>
</div>
<div>
<a
href="https://fly.io/docs/elixir/getting-started/"
class="group -mx-2 -my-0.5 inline-flex items-center gap-3 rounded-lg px-2 py-0.5 hover:bg-zinc-50 hover:text-zinc-900"
>
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viewBox="0 0 20 20"
aria-hidden="true"
class="h-4 w-4 fill-zinc-400 group-hover:fill-zinc-600"
>
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</svg>
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defmodule NotesAppWeb.UserSessionController do
use NotesAppWeb, :controller
alias NotesApp.Accounts
alias NotesAppWeb.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 = Accounts.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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@ -0,0 +1,53 @@
defmodule NotesAppWeb.Endpoint do
use Phoenix.Endpoint, otp_app: :notes_app
# The session will be stored in the cookie and signed,
# this means its contents can be read but not tampered with.
# Set :encryption_salt if you would also like to encrypt it.
@session_options [
store: :cookie,
key: "_notes_app_key",
signing_salt: "c2TUk/mw",
same_site: "Lax"
]
socket "/live", Phoenix.LiveView.Socket,
websocket: [connect_info: [session: @session_options]],
longpoll: [connect_info: [session: @session_options]]
# Serve at "/" the static files from "priv/static" directory.
#
# You should set gzip to true if you are running phx.digest
# when deploying your static files in production.
plug Plug.Static,
at: "/",
from: :notes_app,
gzip: false,
only: NotesAppWeb.static_paths()
# Code reloading can be explicitly enabled under the
# :code_reloader configuration of your endpoint.
if code_reloading? do
socket "/phoenix/live_reload/socket", Phoenix.LiveReloader.Socket
plug Phoenix.LiveReloader
plug Phoenix.CodeReloader
plug Phoenix.Ecto.CheckRepoStatus, otp_app: :notes_app
end
plug Phoenix.LiveDashboard.RequestLogger,
param_key: "request_logger",
cookie_key: "request_logger"
plug Plug.RequestId
plug Plug.Telemetry, event_prefix: [:phoenix, :endpoint]
plug Plug.Parsers,
parsers: [:urlencoded, :multipart, :json],
pass: ["*/*"],
json_decoder: Phoenix.json_library()
plug Plug.MethodOverride
plug Plug.Head
plug Plug.Session, @session_options
plug NotesAppWeb.Router
end

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@ -0,0 +1,24 @@
defmodule NotesAppWeb.Gettext do
@moduledoc """
A module providing Internationalization with a gettext-based API.
By using [Gettext](https://hexdocs.pm/gettext),
your module gains a set of macros for translations, for example:
import NotesAppWeb.Gettext
# Simple translation
gettext("Here is the string to translate")
# Plural translation
ngettext("Here is the string to translate",
"Here are the strings to translate",
3)
# Domain-based translation
dgettext("errors", "Here is the error message to translate")
See the [Gettext Docs](https://hexdocs.pm/gettext) for detailed usage.
"""
use Gettext.Backend, otp_app: :notes_app
end

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defmodule NotesAppWeb.UserConfirmationInstructionsLive do
use NotesAppWeb, :live_view
alias NotesApp.Accounts
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 = Accounts.get_user_by_email(email) do
Accounts.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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defmodule NotesAppWeb.UserConfirmationLive do
use NotesAppWeb, :live_view
alias NotesApp.Accounts
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 Accounts.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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defmodule NotesAppWeb.UserForgotPasswordLive do
use NotesAppWeb, :live_view
alias NotesApp.Accounts
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 = Accounts.get_user_by_email(email) do
Accounts.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 NotesAppWeb.UserLoginLive do
use NotesAppWeb, :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 NotesAppWeb.UserRegistrationLive do
use NotesAppWeb, :live_view
alias NotesApp.Accounts
alias NotesApp.Accounts.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 = Accounts.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 Accounts.register_user(user_params) do
{:ok, user} ->
{:ok, _} =
Accounts.deliver_user_confirmation_instructions(
user,
&url(~p"/users/confirm/#{&1}")
)
changeset = Accounts.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 = Accounts.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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defmodule NotesAppWeb.UserResetPasswordLive do
use NotesAppWeb, :live_view
alias NotesApp.Accounts
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} ->
Accounts.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 Accounts.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 = Accounts.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 = Accounts.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 NotesAppWeb.UserSettingsLive do
use NotesAppWeb, :live_view
alias NotesApp.Accounts
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 Accounts.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 = Accounts.change_user_email(user)
password_changeset = Accounts.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
|> Accounts.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 Accounts.apply_user_email(user, password, user_params) do
{:ok, applied_user} ->
Accounts.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
|> Accounts.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 Accounts.update_user_password(user, password, user_params) do
{:ok, user} ->
password_form =
user
|> Accounts.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

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defmodule NotesAppWeb.Router do
use NotesAppWeb, :router
import NotesAppWeb.UserAuth
pipeline :browser do
plug :accepts, ["html"]
plug :fetch_session
plug :fetch_live_flash
plug :put_root_layout, html: {NotesAppWeb.Layouts, :root}
plug :protect_from_forgery
plug :put_secure_browser_headers
plug :fetch_current_user
end
pipeline :api do
plug :accepts, ["json"]
end
scope "/", NotesAppWeb do
pipe_through :browser
resources "/notes", NoteController
get "/", PageController, :home
end
# Other scopes may use custom stacks.
# scope "/api", NotesAppWeb do
# pipe_through :api
# end
# Enable LiveDashboard and Swoosh mailbox preview in development
if Application.compile_env(:notes_app, :dev_routes) do
# If you want to use the LiveDashboard in production, you should put
# it behind authentication and allow only admins to access it.
# If your application does not have an admins-only section yet,
# you can use Plug.BasicAuth to set up some basic authentication
# as long as you are also using SSL (which you should anyway).
import Phoenix.LiveDashboard.Router
scope "/dev" do
pipe_through :browser
live_dashboard "/dashboard", metrics: NotesAppWeb.Telemetry
forward "/mailbox", Plug.Swoosh.MailboxPreview
end
end
## Authentication routes
scope "/", NotesAppWeb do
pipe_through [:browser, :redirect_if_user_is_authenticated]
live_session :redirect_if_user_is_authenticated,
on_mount: [{NotesAppWeb.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 "/", NotesAppWeb do
pipe_through [:browser, :require_authenticated_user]
live_session :require_authenticated_user,
on_mount: [{NotesAppWeb.UserAuth, :ensure_authenticated}] do
live "/users/settings", UserSettingsLive, :edit
live "/users/settings/confirm_email/:token", UserSettingsLive, :confirm_email
end
end
scope "/", NotesAppWeb do
pipe_through [:browser]
delete "/users/log_out", UserSessionController, :delete
live_session :current_user,
on_mount: [{NotesAppWeb.UserAuth, :mount_current_user}] do
live "/users/confirm/:token", UserConfirmationLive, :edit
live "/users/confirm", UserConfirmationInstructionsLive, :new
end
end
end

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defmodule NotesAppWeb.Telemetry do
use Supervisor
import Telemetry.Metrics
def start_link(arg) do
Supervisor.start_link(__MODULE__, arg, name: __MODULE__)
end
@impl true
def init(_arg) do
children = [
# Telemetry poller will execute the given period measurements
# every 10_000ms. Learn more here: https://hexdocs.pm/telemetry_metrics
{:telemetry_poller, measurements: periodic_measurements(), period: 10_000}
# Add reporters as children of your supervision tree.
# {Telemetry.Metrics.ConsoleReporter, metrics: metrics()}
]
Supervisor.init(children, strategy: :one_for_one)
end
def metrics do
[
# Phoenix Metrics
summary("phoenix.endpoint.start.system_time",
unit: {:native, :millisecond}
),
summary("phoenix.endpoint.stop.duration",
unit: {:native, :millisecond}
),
summary("phoenix.router_dispatch.start.system_time",
tags: [:route],
unit: {:native, :millisecond}
),
summary("phoenix.router_dispatch.exception.duration",
tags: [:route],
unit: {:native, :millisecond}
),
summary("phoenix.router_dispatch.stop.duration",
tags: [:route],
unit: {:native, :millisecond}
),
summary("phoenix.socket_connected.duration",
unit: {:native, :millisecond}
),
summary("phoenix.channel_joined.duration",
unit: {:native, :millisecond}
),
summary("phoenix.channel_handled_in.duration",
tags: [:event],
unit: {:native, :millisecond}
),
# Database Metrics
summary("notes_app.repo.query.total_time",
unit: {:native, :millisecond},
description: "The sum of the other measurements"
),
summary("notes_app.repo.query.decode_time",
unit: {:native, :millisecond},
description: "The time spent decoding the data received from the database"
),
summary("notes_app.repo.query.query_time",
unit: {:native, :millisecond},
description: "The time spent executing the query"
),
summary("notes_app.repo.query.queue_time",
unit: {:native, :millisecond},
description: "The time spent waiting for a database connection"
),
summary("notes_app.repo.query.idle_time",
unit: {:native, :millisecond},
description:
"The time the connection spent waiting before being checked out for the query"
),
# VM Metrics
summary("vm.memory.total", unit: {:byte, :kilobyte}),
summary("vm.total_run_queue_lengths.total"),
summary("vm.total_run_queue_lengths.cpu"),
summary("vm.total_run_queue_lengths.io")
]
end
defp periodic_measurements do
[
# A module, function and arguments to be invoked periodically.
# This function must call :telemetry.execute/3 and a metric must be added above.
# {NotesAppWeb, :count_users, []}
]
end
end

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defmodule NotesAppWeb.UserAuth do
use NotesAppWeb, :verified_routes
import Plug.Conn
import Phoenix.Controller
alias NotesApp.Accounts
# 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 "_notes_app_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 = Accounts.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 && Accounts.delete_user_session_token(user_token)
if live_socket_id = get_session(conn, :live_socket_id) do
NotesAppWeb.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 && Accounts.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 NotesAppWeb.PageLive do
use NotesAppWeb, :live_view
on_mount {NotesAppWeb.UserAuth, :mount_current_user}
...
end
Or use the `live_session` of your router to invoke the on_mount callback:
live_session :authenticated, on_mount: [{NotesAppWeb.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
Accounts.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