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Fix credo warnings and ensure clean compilation

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- Renamed predicate functions to follow Elixir conventions:
  - is_finite? → finite?
  - is_finite_number? → finite_number?
  - is_finite_float? → finite_float?
- Fixed all function returns to ensure proper nil handling
- Applied mix format to all files
- All tests pass with no compilation warnings

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Graham McIntire 2025-07-14 10:25:01 -05:00
parent 94f3a62539
commit b065404803
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3 changed files with 80 additions and 68 deletions
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31
lib/aprsme/encoding_utils.ex
View file

@ -101,9 +101,9 @@ defmodule Aprsme.EncodingUtils do
"""
@spec to_float(any()) :: float() | nil
def to_float(value) when is_float(value) do
if is_finite_float?(value), do: value, else: nil
if finite_float?(value), do: value, else: nil
end
def to_float(value) when is_integer(value) do
# Protect against integer overflow when converting to float
if value >= -9.0e15 and value <= 9.0e15 do
@ -112,36 +112,39 @@ defmodule Aprsme.EncodingUtils do
nil
end
end
def to_float(%Decimal{} = value) do
float = Decimal.to_float(value)
if is_finite_float?(float), do: float, else: nil
if finite_float?(float), do: float, else: nil
end
def to_float(value) when is_binary(value) do
# Sanitize input first to prevent injection attacks
sanitized =
sanitized =
value
|> sanitize_string()
|> to_string()
|> String.slice(0, 30) # Reasonable max length for a number
# Reasonable max length for a number
|> String.slice(0, 30)
case Float.parse(sanitized) do
{float, _} when is_float(float) ->
if is_finite_float?(float), do: float, else: nil
:error ->
if finite_float?(float), do: float, else: nil
:error ->
nil
end
end
def to_float(_), do: nil
# Helper to check if a float is finite (not infinity or NaN)
defp is_finite_float?(float) when is_float(float) do
float != :infinity and float != :neg_infinity and float == float # NaN != NaN
defp finite_float?(float) when is_float(float) do
# NaN != NaN
float != :infinity and float != :neg_infinity and float == float
end
defp is_finite_float?(_), do: false
defp finite_float?(_), do: false
@doc """
Converts various types to Decimal for database storage.

109
lib/aprsme_web/live/map_live/index.ex
View file

@ -59,35 +59,39 @@ defmodule AprsmeWeb.MapLive.Index do
defp parse_float_in_range(str, default, min, max) when is_binary(str) do
# Sanitize input first
sanitized = sanitize_numeric_string(str)
case Float.parse(sanitized) do
{val, ""} when val >= min and val <= max ->
if is_finite?(val), do: val, else: default
{val, _remainder} when val >= min and val <= max ->
{val, ""} when val >= min and val <= max ->
if finite?(val), do: val, else: default
{val, _remainder} when val >= min and val <= max ->
# Accept even with trailing characters, but validate the number
if is_finite?(val), do: val, else: default
_ ->
if finite?(val), do: val, else: default
_ ->
default
end
end
defp parse_float_in_range(_, default, _, _), do: default
defp parse_int_in_range(str, default, min, max) when is_binary(str) do
# Sanitize input first
sanitized = sanitize_numeric_string(str)
case Integer.parse(sanitized) do
{val, ""} when val >= min and val <= max ->
{val, ""} when val >= min and val <= max ->
val
{val, _remainder} when val >= min and val <= max ->
{val, _remainder} when val >= min and val <= max ->
# Accept even with trailing characters
val
_ ->
_ ->
default
end
end
defp parse_int_in_range(_, default, _, _), do: default
# Sanitize numeric strings to prevent injection attacks
@ -96,25 +100,26 @@ defmodule AprsmeWeb.MapLive.Index do
str
|> String.trim()
|> String.replace(~r/[^\d\.\-eE]/, "")
|> limit_string_length(20) # Prevent extremely long inputs
# Prevent extremely long inputs
|> limit_string_length(20)
end
defp sanitize_numeric_string(_), do: ""
# Limit string length to prevent DoS
defp limit_string_length(str, max_length) when byte_size(str) > max_length do
:binary.part(str, 0, max_length)
end
defp limit_string_length(str, _), do: str
# Check if a float is finite (not infinity or NaN)
defp is_finite?(float) when is_float(float) do
float != :infinity and float != :neg_infinity and float == float # NaN != NaN
end
defp is_finite?(_), do: false
defp limit_string_length(str, _), do: str
# Check if a float is finite (not infinity or NaN)
defp finite?(float) when is_float(float) do
# NaN != NaN
float != :infinity and float != :neg_infinity and float == float
end
defp finite?(_), do: false
@impl true
def mount(params, session, socket) do
@ -409,7 +414,7 @@ defmodule AprsmeWeb.MapLive.Index do
# Validate coordinates first
lat_float = safe_parse_coordinate(lat, 0.0, -90.0, 90.0)
lng_float = safe_parse_coordinate(lng, 0.0, -180.0, 180.0)
# Validate path string
safe_path = sanitize_path_string(path)
@ -483,7 +488,7 @@ defmodule AprsmeWeb.MapLive.Index do
def handle_event("update_trail_duration", %{"trail_duration" => duration}, socket) do
# Validate and convert duration string to hours
hours = parse_trail_duration(duration)
# Calculate new threshold safely
new_threshold = DateTime.add(DateTime.utc_now(), -hours * 3600, :second)
@ -594,13 +599,13 @@ defmodule AprsmeWeb.MapLive.Index do
defp parse_center_coordinates(center, socket) when is_map(center) do
default_lat = socket.assigns.map_center.lat
default_lng = socket.assigns.map_center.lng
lat = safe_parse_coordinate(Map.get(center, "lat"), default_lat, -90.0, 90.0)
lng = safe_parse_coordinate(Map.get(center, "lng"), default_lng, -180.0, 180.0)
{lat, lng}
end
defp parse_center_coordinates(_, socket) do
# Invalid center format, return current center
{socket.assigns.map_center.lat, socket.assigns.map_center.lng}
@ -612,49 +617,50 @@ defmodule AprsmeWeb.MapLive.Index do
parsed -> clamp_coordinate(parsed, min, max)
end
end
defp safe_parse_coordinate(value, default, min, max) when is_number(value) do
if is_finite_number?(value) do
if finite_number?(value) do
clamp_coordinate(value, min, max)
else
default
end
end
defp safe_parse_coordinate(_, default, _, _), do: default
defp clamp_coordinate(value, min, max) when is_number(value) do
value |> max(min) |> min(max)
end
defp clamp_coordinate(_, _, _), do: 0.0
defp clamp_zoom(zoom) when is_binary(zoom) do
parse_int_in_range(zoom, @default_zoom, 1, 20)
end
defp clamp_zoom(zoom) when is_integer(zoom) do
max(1, min(20, zoom))
end
defp clamp_zoom(zoom) when is_float(zoom) do
max(1, min(20, trunc(zoom)))
end
defp clamp_zoom(_), do: @default_zoom
# Helper to check if a number is finite
defp is_finite_number?(num) when is_number(num) do
is_finite?(num / 1.0) # Convert integer to float for check
defp finite_number?(num) when is_number(num) do
# Convert integer to float for check
finite?(num / 1.0)
end
defp is_finite_number?(_), do: false
defp finite_number?(_), do: false
# Validate that coordinates are within reasonable ranges
defp valid_coordinates?(lat, lng) when is_number(lat) and is_number(lng) do
lat >= -90 and lat <= 90 and lng >= -180 and lng <= 180
end
defp valid_coordinates?(_, _), do: false
# Calculate degrees per pixel based on zoom level
@ -785,6 +791,7 @@ defmodule AprsmeWeb.MapLive.Index do
case Integer.parse(duration) do
{hours, ""} when hours in [1, 6, 12, 24, 48, 168] ->
hours
_ ->
# Default to 1 hour if invalid
1
@ -798,6 +805,7 @@ defmodule AprsmeWeb.MapLive.Index do
case Integer.parse(hours) do
{h, ""} when h in [1, 3, 6, 12, 24] ->
h
_ ->
# Default to 1 hour if invalid
1
@ -2380,10 +2388,11 @@ defmodule AprsmeWeb.MapLive.Index do
# Limit length and remove any potentially dangerous characters
# APRS paths should only contain callsigns, commas, asterisks, and dashes
path
|> String.slice(0, 200) # Reasonable max length for APRS path
# Reasonable max length for APRS path
|> String.slice(0, 200)
|> String.replace(~r/[^A-Za-z0-9,\-\*\s]/, "")
end
defp sanitize_path_string(_), do: ""
# Parse RF path string to extract digipeater/igate callsigns
@ -2425,7 +2434,7 @@ defmodule AprsmeWeb.MapLive.Index do
# - Large overages: Batch prune with buffer to reduce frequency
defp prune_oldest_packets(packets_map, max_size) when map_size(packets_map) > max_size do
current_size = map_size(packets_map)
# For small overages, use a more targeted approach
if current_size - max_size < 10 do
# Just remove the few oldest packets
@ -2441,7 +2450,7 @@ defmodule AprsmeWeb.MapLive.Index do
# Efficient pruning for small overages (< 10 packets over limit)
defp prune_small_overage(packets_map, max_size) do
to_remove = map_size(packets_map) - max_size
# Find just the oldest packets we need to remove
# Using Stream for lazy evaluation until we need to materialize
oldest_keys =
@ -2450,7 +2459,7 @@ defmodule AprsmeWeb.MapLive.Index do
|> Enum.sort_by(fn {_id, timestamp} -> timestamp end, {:asc, DateTime})
|> Enum.take(to_remove)
|> Enum.map(fn {id, _timestamp} -> id end)
# Map.drop is more efficient than reduce + delete
Map.drop(packets_map, oldest_keys)
end
@ -2459,16 +2468,16 @@ defmodule AprsmeWeb.MapLive.Index do
defp prune_large_overage(packets_map, max_size) do
# Remove 20% more than needed to avoid frequent pruning
target_size = max_size - div(max_size, 5)
# Get timestamps and sort only once
sorted_by_time =
packets_map
|> Enum.map(fn {id, packet} -> {id, get_packet_timestamp(packet)} end)
|> Enum.sort_by(fn {_id, timestamp} -> timestamp end, {:desc, DateTime})
|> Enum.take(target_size)
# Rebuild map with only the newest packets
Map.new(sorted_by_time, fn {id, _timestamp} ->
Map.new(sorted_by_time, fn {id, _timestamp} ->
{id, Map.get(packets_map, id)}
end)
end

8
test/aprsme_web/live/map_live/movement_test.exs
View file

@ -95,6 +95,7 @@ defmodule AprsmeWeb.MapLive.MovementTest do
"west" => -96.50
}
}
assert render_hook(view, "bounds_changed", bounds_params)
# Wait for initial load to complete
@ -118,7 +119,7 @@ defmodule AprsmeWeb.MapLive.MovementTest do
# Wait for the initial packet to be processed
:timer.sleep(100)
# Should receive new_packet for the initial packet
assert_push_event(view, "new_packet", %{}, 1000)
@ -136,14 +137,14 @@ defmodule AprsmeWeb.MapLive.MovementTest do
# Send the moved packet
send(view.pid, {:postgres_packet, moved_packet})
# Wait a bit for processing
:timer.sleep(100)
# The view should push a new_packet event for significant movement
assert_push_event(view, "new_packet", %{}, 1000)
end
defp flush_push_events(view) do
receive do
{ref, {:push_event, _, _}} when is_reference(ref) and ref == view.ref ->
@ -182,5 +183,4 @@ defmodule AprsmeWeb.MapLive.MovementTest do
assert distance3 > 20
end
end
end