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prebid/Prebid.js

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src/refererDetection.js

Summary

Maintainability
F
3 days
Test Coverage

Function detectReferer has a Cognitive Complexity of 98 (exceeds 5 allowed). Consider refactoring.
Open

export function detectReferer(win) {
  /**
   * This function would return a read-only array of hostnames for all the parent frames.
   * win.location.ancestorOrigins is only supported in webkit browsers. For non-webkit browsers it will return undefined.
   *
Severity: Minor
Found in src/refererDetection.js - About 1 day to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function detectReferer has 121 lines of code (exceeds 25 allowed). Consider refactoring.
Open

export function detectReferer(win) {
  /**
   * This function would return a read-only array of hostnames for all the parent frames.
   * win.location.ancestorOrigins is only supported in webkit browsers. For non-webkit browsers it will return undefined.
   *
Severity: Major
Found in src/refererDetection.js - About 4 hrs to fix

    Function refererInfo has 109 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

      function refererInfo() {
    const stack = [];
    const ancestors = getAncestorOrigins(win);
    const maxNestedIframes = config.getConfig('maxNestedIframes');
    Severity: Major
    Found in src/refererDetection.js - About 4 hrs to fix

      Avoid deeply nested control flow statements.
      Open

                  if (canonicalUrl) {
              bestCanonicalUrl = canonicalUrl;
            }
      Severity: Major
      Found in src/refererDetection.js - About 45 mins to fix

        Avoid deeply nested control flow statements.
        Open

                    if (currentWindow === win.top) {
              hasTopLocation = true;
            }
        Severity: Major
        Found in src/refererDetection.js - About 45 mins to fix

          Avoid deeply nested control flow statements.
          Open

                        if (currentWindow === win.top) {
                reachedTop = true;
              }
          Severity: Major
          Found in src/refererDetection.js - About 45 mins to fix

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