Claudio Ortolina
140 lines
4.5 KiB
Elixir
140 lines
4.5 KiB
Elixir
defmodule ErrorTracker.ErrorNotifier.Email do
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@moduledoc false
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import Swoosh.Email
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require Logger
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def send(occurrence, header) do
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conf = config()
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from_email = Keyword.fetch!(conf, :from_email)
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to_email = Keyword.fetch!(conf, :to_email)
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mailer = Keyword.fetch!(conf, :mailer)
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first_line = first_stack_line(occurrence)
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file = if first_line, do: first_line.file, else: "unknown"
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line = if first_line, do: first_line.line, else: "?"
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error_name = String.slice(occurrence.reason, 0, 80)
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email =
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new()
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|> to(to_email)
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|> from({"MusicLibrary", from_email})
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|> subject("[MusicLibrary] Error: #{error_name} - #{file}:#{line}")
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|> html_body(build_html(occurrence, header))
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case mailer.deliver(email) do
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{:ok, _} ->
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Logger.info("Error notification email sent")
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{:ok, :sent}
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{:error, reason} ->
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Logger.error("Failed to send error notification: #{inspect(reason)}")
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{:error, reason}
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end
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end
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# -- Private --
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defp build_html(occurrence, header) do
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first_line = first_stack_line(occurrence)
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location =
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if first_line do
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"#{first_line.module}.#{first_line.function} (#{first_line.file}:#{first_line.line})"
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else
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"Unknown location"
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end
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view = occurrence.context["live_view.view"] || "N/A"
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path = occurrence.context["request.path"] || "N/A"
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error_url = error_url(occurrence.error_id)
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escaped_header = html_escape(header)
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escaped_error_id = html_escape(occurrence.error_id)
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escaped_reason = occurrence.reason |> String.slice(0..199) |> html_escape()
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escaped_location = html_escape(location)
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escaped_view = html_escape(view)
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escaped_path = html_escape(path)
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escaped_url = html_escape(error_url)
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stack_trace_html = format_stack_trace(occurrence)
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"""
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<div style="max-width: 600px; margin: 0 auto; padding: 20px; font-family: system-ui, -apple-system, sans-serif;">
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<div style="background-color: white; border-radius: 8px; padding: 24px; box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1);">
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<h1 style="color: #dc2626; font-size: 24px; font-weight: bold; margin-bottom: 16px;">
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#{escaped_header}
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</h1>
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<p style="color: #374151; font-size: 16px; line-height: 24px; margin-bottom: 24px;">
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ErrorTracker has detected an error:
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</p>
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<div style="background-color: #f9fafb; border-radius: 6px; padding: 16px; margin-bottom: 24px;">
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<p><strong>Error ID:</strong> #{escaped_error_id}</p>
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<p><strong>Reason:</strong> #{escaped_reason}</p>
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<p><strong>Location:</strong> #{escaped_location}</p>
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#{stack_trace_html}
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<p><strong>View:</strong> #{escaped_view}</p>
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<p><strong>Request Path:</strong> #{escaped_path}</p>
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<p><strong>Time:</strong> #{DateTime.utc_now()}</p>
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</div>
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<p style="margin-bottom: 24px;">
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<a href="#{escaped_url}"
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style="display: inline-block; background-color: #dc2626; color: white; font-weight: 500;
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padding: 8px 16px; border-radius: 4px; text-decoration: none;">
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View Error Details
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</a>
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</p>
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</div>
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</div>
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"""
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end
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defp format_stack_trace(occurrence) do
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case occurrence.stacktrace do
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%{lines: lines} when is_list(lines) and lines != [] ->
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formatted =
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lines
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|> Enum.take(10)
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|> Enum.map_join("\n", fn line ->
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"#{line.module}.#{line.function} (#{line.file}:#{line.line})"
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end)
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|> html_escape()
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"""
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<p style="margin: 8px 0 4px 0;"><strong>Stack Trace:</strong></p>
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<pre style="font-family: 'Courier New', monospace; font-size: 12px; margin: 0; white-space: pre-wrap;">#{formatted}</pre>
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"""
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_ ->
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""
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end
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end
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defp error_url(error_id) do
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conf = config()
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base_url = Keyword.get(conf, :base_url, "")
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error_path = Keyword.get(conf, :error_tracker_path, "/dev/errors")
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error_path = error_path |> String.trim_trailing("/")
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base_url = base_url |> String.trim_trailing("/")
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"#{base_url}#{error_path}/#{error_id}"
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end
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defp first_stack_line(occurrence) do
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case occurrence.stacktrace do
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%{lines: [first | _]} -> first
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_ -> nil
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end
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end
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defp html_escape(value) do
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value |> Phoenix.HTML.html_escape() |> Phoenix.HTML.safe_to_string()
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end
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defp config do
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Application.get_env(:music_library, ErrorTracker.ErrorNotifier, [])
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end
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end
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