-cdn -json should return true or false

[brenocss]

httpx version:

v1.1.5

Current Behavior:

echo 'google.com' | httpx -cdn -json | jq .cdn

null

Expected Behavior:

echo 'google.com' | httpx -cdn -json | jq .cdn

false

Use case

echo 'google.com
hackerone.com' | httpx -json >> log.json

echo 'google.com
hackerone.com' | httpx -cdn -json >> log.json

# Get all hosts's that is from any cdn
cat log.json | jq 'select(.cdn==true).url'

# Get all hosts's that isn't from any cdn
cat log.json | jq 'select(.cdn==false).url'
# cat log.json | jq 'select(.cdn!=true).url' doesn't work because it returns null with or without the -cdn flag, getting invalid results 

[ehsandeep]

@brenocss this feature will be updated with #492, so instead of returning true/false, it will return the name of the cdn.

[brenocss]

The best of all worlds would be to have both fields that says if belongs to a cdn and the name of that cdn

echo 'hackerone.com' | httpx -cdn -cdn-title
https://api.hackerone.com [cloudflare]

{
  "cdn":true||false,
  "cdn_title": "cloudflare"
}

[ehsandeep]

@brenocss cat log.json | jq -r 'select(.cdn!=true).url' this works with latest changes in the dev, and returning false may not be a good idea because the cdncheck library only returns true for CIDR ranges that are known to us but not all.