Proxy Conditions

proxy-blackhole.pac

// Updated 2025-9-10
//
// This proxy.pac configuration is a mirror of the other one, but sends these URLs to /dev/null
// for use with a "Home" profile, as opposed to a "Work" profile, to ensure they're not ever accessed.
//
// IMPORTANT - the "RAW" url for Gists changes whenever they're edited, so you must copy the new 
// url to your Automatic Proxy Config field in Firefox.
// The "Reload" button will just reload the previous version of the file

  function FindProxyForURL(url, host) {
      // Blackhole proxy
      var proxy = "127.0.0.1:3421"
      
      // Direct connection for localhost
      if (host == "localhost" || host == "127.0.0.1" || host == "::1") {
          return "DIRECT";
      }

      // Direct connection for private IP ranges (RFC 1918)
      if (isInNet(host, "10.0.0.0", "255.0.0.0") ||
          isInNet(host, "172.16.0.0", "255.240.0.0") ||
          isInNet(host, "192.168.0.0", "255.255.0.0")) {
          return "DIRECT";
      }

      // Direct connection for link-local addresses
      if (isInNet(host, "169.254.0.0", "255.255.0.0")) {
          return "DIRECT";
      }

      // Direct connection for loopback range
      if (isInNet(host, "127.0.0.0", "255.0.0.0")) {
          return "DIRECT";
      }

      // Direct connection for local IPv6 addresses
      if (host.indexOf("::1") != -1 ||
          host.indexOf("fe80:") == 0 ||
          host.indexOf("fc00:") == 0 ||
          host.indexOf("fd00:") == 0) {
          return "DIRECT";
      }

      // Domians to route to blackhole
      var domains = [
        "amazon.com",
        "aws.amazon.com", // Redundant but explicit
        "console.aws.amazon.com", // Redundant but explicit
        "amazonaws.com",
        "awsstatic.com",
        "elasticbeanstalk.com",
        "redhat.com",
        "openshiftapps.com"
      ]

      for (var i = 0; i < domains.length; i++) {
          if (matchesDomain(host, domains[i])) {
              return "PROXY " + proxy;
          }
      }

      // Direct connection for everything else
      return "DIRECT";
  }

  // simplifies domain matching for exact hosts or subdomains
  function matchesDomain(host, domain) {
      return host == domain || dnsDomainIs(host, "." + domain);
  }

proxy.pac

// Updated 2025-9-10
//
// IMPORTANT - the "RAW" url for Gists changes whenever they're edited, so you must copy the new 
// url to your Automatic Proxy Config field in Firefox.
// The "Reload" button will just reload the previous version of the file

  function FindProxyForURL(url, host) {
      var proxy = "squid.corp.redhat.com:3128"
      
      // Direct connection for localhost
      if (host == "localhost" || host == "127.0.0.1" || host == "::1") {
          return "DIRECT";
      }

      // Direct connection for private IP ranges (RFC 1918)
      if (isInNet(host, "10.0.0.0", "255.0.0.0") ||
          isInNet(host, "172.16.0.0", "255.240.0.0") ||
          isInNet(host, "192.168.0.0", "255.255.0.0")) {
          return "DIRECT";
      }

      // Direct connection for link-local addresses
      if (isInNet(host, "169.254.0.0", "255.255.0.0")) {
          return "DIRECT";
      }

      // Direct connection for loopback range
      if (isInNet(host, "127.0.0.0", "255.0.0.0")) {
          return "DIRECT";
      }

      // Direct connection for local IPv6 addresses
      if (host.indexOf("::1") != -1 ||
          host.indexOf("fe80:") == 0 ||
          host.indexOf("fc00:") == 0 ||
          host.indexOf("fd00:") == 0) {
          return "DIRECT";
      }

      // Use proxy for Amazon/AWS domains
      var domains = [
        "amazon.com",
        "aws.amazon.com", // Redundant but explicit
        "console.aws.amazon.com", // Redundant but explicit
        "amazonaws.com",
        "awsstatic.com",
        "elasticbeanstalk.com"
      ]

      for (var i = 0; i < domains.length; i++) {
          if (matchesDomain(host, domains[i])) {
              return "PROXY " + proxy;
          }
      }

      // Direct connection for everything else
      return "DIRECT";
  }

  // simplifies domain matching for exact hosts or subdomains
  function matchesDomain(host, domain) {
      return host == domain || dnsDomainIs(host, "." + domain);
  }