Merge pull request #4401 from twesterhever/temp-google-firebase

[Enhancement] Add rule to detect Google Firebase URLs

diff --cc rules/regexp/headers.lua
index c95561163434e1a982bb1e5ce7cac414746a7963,5cc107ab808659c9ce328e3c4696d89703833901..8734c8cb4da862e43926c1a554dd2265489c8e57
--- 1/rules/regexp/headers.lua
--- 2/rules/regexp/headers.lua
+++ b/rules/regexp/headers.lua
@@@ -916,10 -916,17 +916,17 @@@ reconf['HAS_GUC_PROXY_URI'] = 
  reconf['HAS_GOOGLE_REDIR'] = {
    re = '/\\.google\\.com\\/url\\?/{url}i',
    description = 'Has google.com/url redirection',
 -  score = 0.01,
 -  group = 'experimental'
 +  score = 1.0,
 +  group = 'url'
  }
  
+ reconf['HAS_GOOGLE_FIREBASE_URL'] = {
+   re = '/\\.firebasestorage\\.googleapis\\.com\\//{url}i',
+   description = 'Contains firebasestorage.googleapis.com URL',
+   score = 0.01,
+   group = 'experimental'
+ }
+ 
  reconf['XM_UA_NO_VERSION'] = {
    re = string.format('(!%s && !%s) && (%s || %s)',
        'X-Mailer=/https?:/H',