blob: 747cb0f914205ecf0820c7deb60c201d1f5035aa (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
# frozen_string_literal: true
module Gitlab
module Sherlock
# Rack middleware used for tracking request metrics.
class Middleware
CONTENT_TYPES = %r{text/html|application/json}i
IGNORE_PATHS = %r{^/sherlock}
def initialize(app)
@app = app
end
# env - A Hash containing Rack environment details.
def call(env)
if instrument?(env)
call_with_instrumentation(env)
else
@app.call(env)
end
end
def call_with_instrumentation(env)
trans = transaction_from_env(env)
retval = trans.run { @app.call(env) }
Sherlock.collection.add(trans)
retval
end
def instrument?(env)
!!(env['HTTP_ACCEPT'] =~ CONTENT_TYPES &&
env['REQUEST_URI'] !~ IGNORE_PATHS)
end
def transaction_from_env(env)
Transaction.new(env['REQUEST_METHOD'], env['REQUEST_URI'])
end
end
end
end
|
