Module: OpenTrace::HttpTracker

Defined in:
lib/opentrace/http_tracker.rb

Constant Summary collapse

MAX_BODY_CAPTURE_BYTES =

Max body size to capture (64KB) — avoids bloating memory with large payloads

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VENDOR_PATTERNS = 
{
  "stripe" => /api\.stripe\.com/i,
  "sendgrid" => /api\.sendgrid\.com/i,
  "twilio" => /api\.twilio\.com/i,
  "slack" => /slack\.com/i,
  "github" => /api\.github\.com/i,
  "aws" => /\.amazonaws\.com/i,
  "google" => /googleapis\.com/i,
  "mailgun" => /api\.mailgun\.net/i,
  "postmark" => /api\.postmarkapp\.com/i,
  "braintree" => /api\.braintreegateway\.com/i,
  "paypal" => /api\.paypal\.com/i,
  "shopify" => /\.myshopify\.com|\.shopify\.com/i,
  "intercom" => /api\.intercom\.io/i,
  "segment" => /api\.segment\.io/i,
  "sentry" => /sentry\.io/i,
  "datadog" => /api\.datadoghq\.com/i,
  "plaid" => /\.plaid\.com/i,
}.freeze

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.infer_vendor(host) ⇒ Object 



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# File 'lib/opentrace/http_tracker.rb', line 30

def self.infer_vendor(host)
  return nil unless host

  VENDOR_PATTERNS.each do |vendor, pattern|
    return vendor if pattern.match?(host)
  end
  nil
end

Instance Method Details

#request(req, body = nil, &block) ⇒ Object 



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# File 'lib/opentrace/http_tracker.rb', line 39

def request(req, body = nil, &block)
  # Guard 1: skip if disabled
  return super unless OpenTrace.enabled?

  # Guard 2: skip if this IS an OpenTrace dispatch call (prevent infinite recursion)
  return super if Fiber[:opentrace_http_tracking_disabled]

  # Inject trace context into outgoing request headers
  inject_trace_context(req) if OpenTrace.config.trace_propagation

  collector = Fiber[:opentrace_collector]
  start_time = Process.clock_gettime(Process::CLOCK_MONOTONIC)

  response = super

  duration_ms = (Process.clock_gettime(Process::CLOCK_MONOTONIC) - start_time) * 1000
  host = address
  port_str = (port == 443 || port == 80) ? "" : ":#{port}"
  scheme = use_ssl? ? "https" : "http"
  safe_path = req.path.to_s.split("?").first
  url = "#{scheme}://#{host}#{port_str}#{safe_path}"

  # Capture request body (if present and under size limit)
  req_body = nil
  if req.body && req.body.is_a?(String) && req.body.bytesize < MAX_BODY_CAPTURE_BYTES
    req_body = req.body
  end

  # Capture response body (if under size limit)
  resp_body = nil
  if response.body && response.body.is_a?(String) && response.body.bytesize < MAX_BODY_CAPTURE_BYTES
    resp_body = response.body
  end

  if collector
    collector.record_http(
      method: req.method,
      url: url,
      host: host,
      status: response.code.to_i,
      duration_ms: duration_ms
    )
  end

  buffer = Fiber[:opentrace_buffer]
  if buffer
    vendor = OpenTrace::HttpTracker.infer_vendor(host)
    buffer.record_http(
      method: req.method,
      url: url,
      host: host,
      vendor: vendor,
      status: response.code.to_i,
      duration_ms: duration_ms,
      request_headers: nil,  # skip headers for now to save memory
      request_body: req_body,
      response_headers: nil,
      response_body: resp_body,
      response_size: response.body&.bytesize,
      retry_attempt: 0,
      error_class: nil
    )
    buffer.record_timeline(type: :http, name: "#{req.method} #{host}", duration_ms: duration_ms)
  end

  response
rescue IOError, SystemCallError, OpenSSL::SSL::SSLError, Timeout::Error, Net::ProtocolError => e
  # Record the failed HTTP call, then re-raise
  duration_ms = start_time ? (Process.clock_gettime(Process::CLOCK_MONOTONIC) - start_time) * 1000 : 0

  if collector
    collector.record_http(
      method: req&.method,
      url: "#{address}#{req&.path}",
      host: address,
      status: 0,
      duration_ms: duration_ms,
      error: e.class.name
    )
  end

  buffer = Fiber[:opentrace_buffer]
  if buffer
    vendor = OpenTrace::HttpTracker.infer_vendor(address)
    buffer.record_http(
      method: req&.method,
      url: "#{address}#{req&.path}",
      host: address,
      vendor: vendor,
      status: 0,
      duration_ms: duration_ms,
      request_body: req_body,
      response_body: nil,
      response_size: nil,
      error_class: e.class.name
    )
  end

  raise # ALWAYS re-raise — never swallow app errors
end