feat: add custom boolean field state & URL-Parameter

This commit is contained in:
Simon 2026-01-20 15:55:08 +01:00
parent dbec2d020f
commit 37e1553a02
Signed by: simon
GPG key ID: 40E7A58C4AA1EDB2
4 changed files with 264 additions and 40 deletions

View file

@ -30,6 +30,7 @@ defmodule MvWeb.MemberLive.Index do
on_mount {MvWeb.LiveHelpers, :ensure_user_role_loaded}
require Ash.Query
require Logger
import Ash.Expr
import MvWeb.LiveHelpers, only: [current_actor: 1]
@ -43,6 +44,15 @@ defmodule MvWeb.MemberLive.Index do
# Prefix used in sort field names for custom fields (e.g., "custom_field_<id>")
@custom_field_prefix Mv.Constants.custom_field_prefix()
# Prefix used for boolean custom field filter URL parameters (e.g., "bf_<id>")
@boolean_filter_prefix Mv.Constants.boolean_filter_prefix()
# Maximum number of boolean custom field filters allowed per request (DoS protection)
@max_boolean_filters Mv.Constants.max_boolean_filters()
# Maximum length of UUID string (36 characters including hyphens)
@max_uuid_length Mv.Constants.max_uuid_length()
# Member fields that are loaded for the overview
# Uses constants from Mv.Constants to ensure consistency
# Note: :id is always included for member identification
@ -103,6 +113,7 @@ defmodule MvWeb.MemberLive.Index do
|> assign_new(:sort_field, fn -> :first_name end)
|> assign_new(:sort_order, fn -> :asc end)
|> assign(:cycle_status_filter, nil)
|> assign(:boolean_custom_field_filters, %{})
|> assign(:selected_members, MapSet.new())
|> assign(:settings, settings)
|> assign(:custom_fields_visible, custom_fields_visible)
@ -220,7 +231,8 @@ defmodule MvWeb.MemberLive.Index do
socket.assigns.sort_field,
socket.assigns.sort_order,
socket.assigns.cycle_status_filter,
new_show_current
new_show_current,
socket.assigns.boolean_custom_field_filters
)
new_path = ~p"/members?#{query_params}"
@ -334,7 +346,8 @@ defmodule MvWeb.MemberLive.Index do
existing_field_query,
existing_sort_query,
socket.assigns.cycle_status_filter,
socket.assigns.show_current_cycle
socket.assigns.show_current_cycle,
socket.assigns.boolean_custom_field_filters
)
# Set the new path with params
@ -363,7 +376,8 @@ defmodule MvWeb.MemberLive.Index do
socket.assigns.sort_field,
socket.assigns.sort_order,
filter,
socket.assigns.show_current_cycle
socket.assigns.show_current_cycle,
socket.assigns.boolean_custom_field_filters
)
new_path = ~p"/members?#{query_params}"
@ -478,6 +492,7 @@ defmodule MvWeb.MemberLive.Index do
|> maybe_update_search(params)
|> maybe_update_sort(params)
|> maybe_update_cycle_status_filter(params)
|> maybe_update_boolean_filters(params)
|> maybe_update_show_current_cycle(params)
|> assign(:query, params["query"])
|> assign(:user_field_selection, final_selection)
@ -588,7 +603,8 @@ defmodule MvWeb.MemberLive.Index do
field_str,
Atom.to_string(order),
socket.assigns.cycle_status_filter,
socket.assigns.show_current_cycle
socket.assigns.show_current_cycle,
socket.assigns.boolean_custom_field_filters
)
new_path = ~p"/members?#{query_params}"
@ -618,7 +634,8 @@ defmodule MvWeb.MemberLive.Index do
socket.assigns.sort_field,
socket.assigns.sort_order,
socket.assigns.cycle_status_filter,
socket.assigns.show_current_cycle
socket.assigns.show_current_cycle,
socket.assigns.boolean_custom_field_filters
)
|> maybe_add_field_selection(socket.assigns[:user_field_selection])
@ -636,12 +653,14 @@ defmodule MvWeb.MemberLive.Index do
# Builds URL query parameters map including all filter/sort state.
# Converts cycle_status_filter atom to string for URL.
# Adds boolean custom field filters as bf_<id>=true|false.
defp build_query_params(
query,
sort_field,
sort_order,
cycle_status_filter,
show_current_cycle
show_current_cycle,
boolean_filters
) do
field_str =
if is_atom(sort_field) do
@ -672,11 +691,19 @@ defmodule MvWeb.MemberLive.Index do
end
# Add show_current_cycle if true
if show_current_cycle do
Map.put(base_params, "show_current_cycle", "true")
else
base_params
end
base_params =
if show_current_cycle do
Map.put(base_params, "show_current_cycle", "true")
else
base_params
end
# Add boolean custom field filters
Enum.reduce(boolean_filters, base_params, fn {custom_field_id, filter_value}, acc ->
param_key = "#{@boolean_filter_prefix}#{custom_field_id}"
param_value = if filter_value == true, do: "true", else: "false"
Map.put(acc, param_key, param_value)
end)
end
# Loads members from the database with custom field values and applies search/sort/payment filters.
@ -1135,6 +1162,90 @@ defmodule MvWeb.MemberLive.Index do
defp determine_cycle_status_filter("unpaid"), do: :unpaid
defp determine_cycle_status_filter(_), do: nil
# Updates boolean custom field filters from URL parameters if present.
#
# Parses all URL parameters with prefix @boolean_filter_prefix and validates them:
# - Extracts custom field ID from parameter name (explicitly removes prefix)
# - Validates filter value using determine_boolean_filter/1
# - Whitelisting: Only custom field IDs that exist and have value_type: :boolean
# - Security: Limits to maximum @max_boolean_filters filters to prevent DoS attacks
# - Security: Validates UUID length (max @max_uuid_length characters)
#
# Returns socket with updated :boolean_custom_field_filters assign.
defp maybe_update_boolean_filters(socket, params) do
# Get all boolean custom fields for whitelisting (keyed by ID as string for consistency)
boolean_custom_fields =
socket.assigns.all_custom_fields
|> Enum.filter(&(&1.value_type == :boolean))
|> Map.new(fn cf -> {to_string(cf.id), cf} end)
# Parse all boolean filter parameters
prefix_length = String.length(@boolean_filter_prefix)
filters =
params
|> Enum.filter(fn {key, _value} -> String.starts_with?(key, @boolean_filter_prefix) end)
|> Enum.reduce(%{}, fn {key, value_str}, acc ->
# Extract custom field ID from parameter name (explicitly remove prefix)
# This is more secure than String.replace_prefix which only removes first occurrence
custom_field_id_str = String.slice(key, prefix_length, String.length(key) - prefix_length)
# Validate custom field ID length (UUIDs are max @max_uuid_length characters)
# This provides an additional security layer beyond UUID format validation
if String.length(custom_field_id_str) <= @max_uuid_length do
# Validate custom field ID exists and is boolean type
case Ecto.UUID.cast(custom_field_id_str) do
{:ok, _custom_field_id} ->
if Map.has_key?(boolean_custom_fields, custom_field_id_str) do
# Validate filter value
case determine_boolean_filter(value_str) do
nil -> acc
filter_value -> Map.put(acc, custom_field_id_str, filter_value)
end
else
acc
end
:error ->
acc
end
else
acc
end
end)
# Security: Limit number of filters to prevent DoS attacks
# Maximum @max_boolean_filters boolean filters allowed per request
filters =
if map_size(filters) > @max_boolean_filters do
Logger.warning(
"Too many boolean filters requested: #{map_size(filters)}, limiting to #{@max_boolean_filters}"
)
filters
|> Enum.take(@max_boolean_filters)
|> Enum.into(%{})
else
filters
end
assign(socket, :boolean_custom_field_filters, filters)
end
# Determines valid boolean filter value from URL parameter.
#
# SECURITY: This function whitelists allowed filter values. Only "true" and "false"
# are accepted - all other input (including malicious strings) falls back to nil.
# This ensures no raw user input is ever passed to filter functions.
#
# Returns:
# - `:true` for "true" string
# - `:false` for "false" string
# - `nil` for any other value
defp determine_boolean_filter("true"), do: true
defp determine_boolean_filter("false"), do: false
defp determine_boolean_filter(_), do: nil
# Updates show_current_cycle from URL parameters if present.
defp maybe_update_show_current_cycle(socket, %{"show_current_cycle" => "true"}) do
assign(socket, :show_current_cycle, true)