Class: Seekmodo::Sdk::SignatureMismatchTracker

Inherits:
Object
  • Object
show all
Defined in:
lib/seekmodo/sdk/signature_mismatch_tracker.rb

Constant Summary collapse

CACHE_KEY = 
"numinix.seekmodo.sigmismatch_failures"
DEFAULT_WINDOW_SECONDS = 
300
DEFAULT_THRESHOLD = 
3

Instance Method Summary collapse

Constructor Details

#initialize(cache, window_seconds: DEFAULT_WINDOW_SECONDS, threshold: DEFAULT_THRESHOLD, clock: nil) ⇒ SignatureMismatchTracker

Returns a new instance of SignatureMismatchTracker.



12
13
14
15
16
17
 
# File 'lib/seekmodo/sdk/signature_mismatch_tracker.rb', line 12

def initialize(cache, window_seconds: DEFAULT_WINDOW_SECONDS, threshold: DEFAULT_THRESHOLD, clock: nil)
  @cache = cache
  @window_seconds = window_seconds
  @threshold = threshold
  @clock = clock || -> { Time.now.to_i }
end

Instance Method Details

#clear ⇒ Object 



26
27
28
 
# File 'lib/seekmodo/sdk/signature_mismatch_tracker.rb', line 26

def clear
  @cache.delete(CACHE_KEY)
end

#failures_in_window ⇒ Object 



34
35
36
 
# File 'lib/seekmodo/sdk/signature_mismatch_tracker.rb', line 34

def failures_in_window
  load_and_prune(@clock.call).length
end

#record_failure ⇒ Object 



19
20
21
22
23
24
 
# File 'lib/seekmodo/sdk/signature_mismatch_tracker.rb', line 19

def record_failure
  now = @clock.call
  rows = load_and_prune(now)
  rows << now
  @cache.set(CACHE_KEY, rows, [@window_seconds * 2, 60].max)
end

#tripped? ⇒ Boolean

Returns:

  • (Boolean) 


30
31
32
 
# File 'lib/seekmodo/sdk/signature_mismatch_tracker.rb', line 30

def tripped?
  load_and_prune(@clock.call).length >= @threshold
end