Packages
appsignal
1.7.0-alpha.2
2.17.4
2.17.3
2.17.2
2.17.1
2.17.0
2.16.0
2.15.11
2.15.10
2.15.9
2.15.8
2.15.7
2.15.6
2.15.5
2.15.4
2.15.3
2.15.2
2.15.1
2.15.0
2.14.1
2.14.0
2.13.4
2.13.3
2.13.2
2.13.1
2.13.0
2.12.3
2.12.2
2.12.1
2.12.0
2.11.0
2.10.2
2.10.1
2.10.0
2.9.2
2.9.1
2.9.0
2.8.3
2.8.2
2.8.1
2.8.0
2.7.13
2.7.12
2.7.11
2.7.10
2.7.9
2.7.8
2.7.7
2.7.6
2.7.5
2.7.4
2.7.3
2.7.2
2.7.1
2.7.0
2.7.0-beta.1
2.6.1
2.6.0
2.5.3
2.5.2
2.5.1
2.5.0
2.4.3
2.4.2
2.4.1
2.4.0
2.3.1
2.3.0
2.2.19
2.2.18
2.2.17
2.2.16
2.2.15
2.2.14
2.2.13
2.2.12
retired
2.2.11
2.2.10
2.2.9
2.2.8
2.2.7
2.2.6
2.2.5
2.2.4
2.2.3
2.2.2
2.2.1
2.2.0
2.1.15
2.1.14
2.1.13
2.1.12
2.1.11
2.1.10
2.1.9
2.1.8
2.1.7
2.1.7-beta.1
2.1.6
2.1.5
2.1.4
2.1.3
2.1.2
2.1.1
2.1.0
2.0.8
2.0.7
2.0.6
2.0.6-beta.1
2.0.5
retired
2.0.4
retired
2.0.3
retired
2.0.2
retired
2.0.1
retired
2.0.0
retired
2.0.0-beta.11
2.0.0-beta.10
2.0.0-beta.9
2.0.0-beta.8
2.0.0-beta.7
2.0.0-beta.6
2.0.0-beta.5
2.0.0-beta.4
2.0.0-beta.3
2.0.0-beta.2
2.0.0-beta.1
2.0.0-alpha.7
2.0.0-alpha.6
2.0.0-alpha.5
2.0.0-alpha.4
2.0.0-alpha.3
2.0.0-alpha.2
2.0.0-alpha.1
1.13.5
1.13.4
1.13.3
1.13.2
1.13.1
1.13.0
1.13.0-beta.2
1.13.0-beta.1
1.12.1
1.12.0
1.12.0-beta.3
1.12.0-beta.2
1.12.0-beta.1
1.11.8
1.11.7
1.11.6
1.11.5
1.11.4
1.11.3
1.11.2
1.11.1
1.11.0
1.11.0-beta.1
1.10.13
1.10.12
1.10.11
1.10.10
1.10.9
1.10.8
1.10.7
1.10.6
1.10.5
1.10.4
1.10.3
1.10.2
1.10.1
1.10.0
1.9.4
1.9.3
1.9.2
1.9.1
1.9.1-beta.1
1.9.0
1.9.0-beta.1
1.9.0-alpha.1
1.8.2
1.8.1
1.8.1-beta.2
1.8.1-beta.1
1.8.0
1.7.2
1.7.1
1.7.0
1.7.0-beta.2
1.7.0-beta.1
1.7.0-alpha.4
1.7.0-alpha.3
1.7.0-alpha.2
1.7.0-alpha.1
1.6.7
1.6.6
1.6.6-beta.2
1.6.6-beta.1
1.6.5
1.6.4
1.6.3
1.6.2
1.6.1
1.6.0
1.6.0-beta.1
1.6.0-alpha.1
1.5.1
1.5.0
1.5.0-beta.2
1.5.0-beta.1
1.4.11-beta.1
1.4.10
1.4.9
1.4.8
1.4.7
1.4.6
1.4.5
1.4.4
1.4.3
1.4.2
1.4.1
1.4.0
1.4.0-alpha.1
1.3.6
1.3.6-beta.1
1.3.5
1.3.4
1.3.4-beta.1
1.3.3
1.3.2
1.3.1
1.3.0
1.3.0-beta.3
1.3.0-beta.2
1.3.0-beta.1
1.2.3
1.2.2
1.2.1
1.2.0
1.1.1
1.1.0
1.0.4
1.0.3
1.0.2
1.0.1
1.0.0
1.0.0-rc.1
0.13.0
0.12.3
0.12.2
0.12.1
0.12.0
0.11.6
0.11.5
0.11.4
0.11.3
0.11.2
0.11.1
0.11.0
0.10.0
0.9.2
0.9.1
0.9.0
0.8.0
0.7.1
0.7.0
0.6.2
0.6.1
0.6.0
0.5.0
0.4.0
0.3.0
0.2.0
0.1.0
0.0.9
0.0.8
0.0.7
0.0.6
0.0.5
0.0.4
0.0.3
0.0.2
0.0.1
Collects error and performance data from your Elixir applications and sends it to AppSignal
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Files
lib/appsignal/error_handler.ex
defmodule Appsignal.ErrorHandler do
@moduledoc """
Error handler which sends all crash reports to the AppSignal backend.
When you add `:appsignal` to your application's dependencies, this
error logger will automatically be installed. All processes that are
supervised, like GenServers, Tasks, Agents, Supervisored will be
monitored for crashes. In the case of a crash, the AppSignal error
handler collects error information and sends it to the backend.
"""
require Logger
alias Appsignal.{Transaction, Backtrace}
@doc """
Retrieve the last Appsignal.Transaction.t that the error logger picked up
"""
@spec get_last_transaction :: Transaction.t | nil
def get_last_transaction do
:gen_event.call(:error_logger, Appsignal.ErrorHandler, :get_last_transaction)
end
def init(_) do
# state of the error handler holds the last matched transaction
{:ok, nil}
end
def handle_event(event, state) do
state =
case match_event(event) do
{origin, reason, message, stack, conn} ->
transaction = Transaction.lookup_or_create_transaction(origin)
if transaction != nil do
submit_transaction(transaction, normalize_reason(reason), message, stack, %{}, conn)
end
:nomatch ->
state
end
{:ok, state}
end
def handle_info(_, state) do
{:ok, state}
end
def submit_transaction(transaction, reason, message, stack, metadata, conn \\ nil)
def submit_transaction(transaction, reason, message, stack, metadata, nil) do
Transaction.set_error(transaction, reason, message, stack)
Transaction.set_meta_data(transaction, metadata)
Transaction.finish(transaction)
Transaction.complete(transaction)
Logger.debug fn ->
"Submitting #{inspect transaction}: #{message}"
end
transaction
end
if Appsignal.plug? do
def submit_transaction(transaction, reason, message, stack, metadata, conn) do
if conn do
Transaction.set_request_metadata(transaction, conn)
end
submit_transaction(transaction, reason, message, stack, metadata)
end
end
def handle_call(:get_last_transaction, state) do
{:ok, state, state}
end
@doc false
@spec match_event(term) :: {pid, term, String.t, list, %{}} | :nomatch
def match_event({:error_report, _gleader, {origin, :crash_report, report}}) do
match_error_report(origin, report)
end
def match_event(_event) do
:nomatch
end
defp match_error_report(origin, [[{:initial_call, _},
{:pid, pid},
{:registered_name, name},
{:error_info, {_kind, exception, stack}} | _], _linked]) do
msg = "Process #{crash_name(pid, name)} terminating"
stacktrace = extract_stacktrace(exception) || stack
{reason, message} = extract_reason_and_message(exception, msg)
{origin, reason, message, Backtrace.from_stacktrace(stacktrace), nil}
end
defp extract_stacktrace({_, stacktrace}) do
case stacktrace?(stacktrace) do
true -> stacktrace
false -> nil
end
end
defp extract_stacktrace(_), do: nil
defp stacktrace?(stacktrace) when is_list(stacktrace) do
Enum.all?(stacktrace, &stacktrace_line?/1)
end
defp stacktrace?(_), do: false
defp stacktrace_line?({_, _, _, [file: _, line: _]}), do: true
defp stacktrace_line?(_), do: false
@doc false
def format_stack(stacktrace) do
IO.warn "Appsignal.ErrorHandler.format_stack/1 is deprecated. Use Appsignal.Backtrace.from_stacktrace/1 instead."
Backtrace.from_stacktrace(stacktrace)
end
defp crash_name(pid, []), do: inspect(pid)
defp crash_name(pid, name), do: "#{inspect(name)} (#{inspect(pid)})"
@doc """
Extract a consise reason from the given error reason, stripping it from long stack traces and the like.
Also returns a 'message' which is supposed to contain extra error information.
"""
@spec extract_reason_and_message(any(), binary()) :: {any(), binary()}
if Appsignal.plug? do
def extract_reason_and_message(%Plug.Conn.WrapperError{reason: reason, kind: kind, stack: stacktrace}, message) do
kind
|> Exception.normalize(reason, stacktrace)
|> extract_reason_and_message(message)
end
end
def extract_reason_and_message(reason, message) when is_binary(reason) do
{reason, message}
end
def extract_reason_and_message(reason, message) when is_atom(reason) do
try do
{Exception.message(reason.exception([])), message}
rescue
UndefinedFunctionError -> {"#{inspect reason}", message}
end
end
def extract_reason_and_message(%Protocol.UndefinedError{value: {:error, {error = %{}, _stack}}}, message) do
extract_reason_and_message(error, message)
end
if Appsignal.phoenix? do
def extract_reason_and_message(%Phoenix.Template.UndefinedError{assigns: %{conn: %{assigns: %{kind: :error, reason: reason}}}}, message) do
extract_reason_and_message(reason, message)
end
end
def extract_reason_and_message(%{__struct__: struct} = reason, message) do
msg = Exception.message(reason)
{"#{inspect struct}", prefixed(message, msg)}
end
def extract_reason_and_message({r = %{}, _}, message) do
extract_reason_and_message(r, message)
end
def extract_reason_and_message({kind, _} = reason, message) do
{inspect(kind), prefixed(message, inspect(reason))}
end
def extract_reason_and_message(any, message) do
# inspect any term; truncate it
{"#{inspect any}", message}
end
defp prefixed(nil, msg), do: msg
defp prefixed("", msg), do: msg
defp prefixed(pre, msg), do: pre <> ": " <> msg
@pid_or_ref_regex ~r/\<(\d+\.)+\d+\>/
def normalize_reason(reason) do
Regex.replace(@pid_or_ref_regex, reason, "<...>")
end
end