Routing

The app comes with pre-installed geo files, ensuring it's ready to use immediately after installation. The relevance of geo files is maintained by updating the core version within the app.

Adding Routing Rules

The app allows you to add routing rules automatically by using special links that can be created on the https://routing.happ.su website.

The links can be transmitted in one of the following ways:

• Via clipboard.

• Using a deeplink.

• Through a QR code.

• As HTTP headers or subscription body.

For HTTP headers, the routing parameter is used, while for subscription bodies, simply including the link is sufficient.

Handling Download Errors

The app uses a geo file download manager that operates in the background.

• If the geo file download does not complete within 3 minutes, the process is stopped.

• An error message appears on the main screen.

• A red exclamation mark is displayed next to the problematic profile in the profile list.

Troubleshooting

The problematic profile state automatically resolves after:

• Successfully completing file downloads.

• Deleting the problematic profile.

If there are no more problematic profiles in the list, error notifications are removed.

Types of Links

• happ://routing/add/{base64}: Adds a profile to the profile list. The first added profile becomes active only after geo files are successfully downloaded. If a profile with the same name already exists, it is overwritten.

• happ://routing/onadd/{base64}: Adds and automatically activates a profile, even if other profiles are active. If a profile with the same name already exists, it is overwritten.

• happ://routing/off: Disable the routing function

{base64} is a JSON profile converted into a Base64-encoded text format.

Profile Structure

The app uses routing profiles configured via JSON.

The default profile contains basic settings used to fill in missing or incorrect parameters.

Example Default Profile:

{
    "GlobalProxy": "true",
    "RemoteDNSType": "DoH",
    "RemoteDNSDomain": "https://cloudflare-dns.com/dns-query",
    "RemoteDNSIP": "1.1.1.1",
    "DomesticDNSType": "DoH",
    "DomesticDNSDomain": "https://dns.google/dns-query",
    "DomesticDNSIP": "8.8.8.8",
    "Geoipurl": "https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/geoip.dat",
    "Geositeurl": "https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/geosite.dat",
    "DnsHosts": {
        "cloudflare-dns.com": "1.1.1.1",
        "dns.google": "8.8.8.8"
    },
    "DirectSites": [],
    "DirectIp": [
        "10.0.0.0/8",
        "172.16.0.0/12",
        "192.168.0.0/16",
        "169.254.0.0/16",
        "224.0.0.0/4",
        "255.255.255.255"
    ],
    "DomainStrategy": "IPIfNonMatch",
    "FakeDNS": "false"
}

Example Custom Profile:

{
    "Name": "China",
    "GlobalProxy": "true",
    "RemoteDNSType": "DoH",
    "RemoteDNSDomain": "https://cloudflare-dns.com/dns-query",
    "RemoteDNSIP": "1.1.1.1",
    "DomesticDNSType": "DoU",
    "DomesticDNSDomain": "",
    "DomesticDNSIP": "8.8.8.8",
    "Geoipurl": "https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/geoip.dat",
    "Geositeurl": "https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/geosite.dat",
    "LastUpdated": "",
    "DnsHosts": {
        "cloudflare-dns.com": "1.1.1.1"
    },
  "DirectSites": ["geosite:cn", "geosite:geolocation-cn"],
    "DirectIp": [
        "geoip:cn",
        "10.0.0.0/8",
        "172.16.0.0/12",
        "192.168.0.0/16",
        "169.254.0.0/16",
        "224.0.0.0/4",
        "255.255.255.255"
    ],
  "ProxySites": ["geosite:cn"],
  "ProxyIp": ["geoip:amazon"],
  "BlockSites": ["geosite:ads"],
  "BlockIp": ["geoip:ads"],
    "DomainStrategy": "IPIfNonMatch",
    "FakeDNS": "false"
}

Profile Management Features

• If a profile with the same name already exists, its data is updated.

• Geo files are updated no more than once a week, even if the profile is updated every hour.

• If the profile has a parameter "LastUpdated": "", and it contains a date in unix format that is higher than the previous value.

Example http headers:

HTTP/2 200 
date: Wed, 24 Nov 2024 10:00:52 GMT
content-type: application/json
content-length: 3798
content-disposition: attachment; filename="213"
routing: happ://routing/onadd/ewogICAgIk5hbWUiOiAidGVzdCIsCiAgICAiR2xvYmFsUHJveHkiOiAidHJ1ZSIsCiAgICAiUmVtb3RlRG5zIjogIiIsCiAgICAiRG9tZXN0aWNEbnMiOiAiIiwKICAgICJHZW9pcHVybCI6ICIiLAogICAgIkdlb3NpdGV1cmwiOiAiIiwKICAgICJEbnNIb3N0cyI6IHt9LAogICAgIkRpcmVjdFNpdGVzIjogW10sCiAgICAiRGlyZWN0SXAiOiBbXSwKICAgICJQcm94eVNpdGVzIjogW10sCiAgICAiUHJveHlJcCI6IFtdLAogICAgIkJsb2NrU2l0ZXMiOiBbXSwKICAgICJCbG9ja0lwIjogW10sCiAgICAiRG9tYWluU3RyYXRlZ3kiOiAiQXNJcyIKfQ==

Example subscription body:

happ://routing/onadd/ewogICAgIk5hbWUiOiAidGVzdCIsCiAgICAiR2xvYmFsUHJveHkiOiAidHJ1ZSIsCiAgICAiUmVtb3RlRG5zIjogIiIsCiAgICAiRG9tZXN0aWNEbnMiOiAiIiwKICAgICJHZW9pcHVybCI6ICIiLAogICAgIkdlb3NpdGV1cmwiOiAiIiwKICAgICJEbnNIb3N0cyI6IHt9LAogICAgIkRpcmVjdFNpdGVzIjogW10sCiAgICAiRGlyZWN0SXAiOiBbXSwKICAgICJQcm94eVNpdGVzIjogW10sCiAgICAiUHJveHlJcCI6IFtdLAogICAgIkJsb2NrU2l0ZXMiOiBbXSwKICAgICJCbG9ja0lwIjogW10sCiAgICAiRG9tYWluU3RyYXRlZ3kiOiAiQXNJcyIKfQ==
vmess://eyJob3N0IjoiZ3Vhdmypc3RhbmJ1bC5jb20iLCJwYXRoIjoiXC8xUyIsInRscyI6InRscyIsImFkZCI6Ind3dy5ndWF2ZWlzdGFuYnVsLmNvbSIsInBvcnQiOjQ0MywiYWlkIjowLCJuZXQiOiJ3cyIsInR5cGUiOiJub25lIiwiZnAiOiJjaHJvbWUiLCJhbHBuIjoiaHR0cFwvMS4xIiwibm9kZV9zc19wdWJsaWNrZXkiOiIiLCIiOmZhbHNlLCJ2IjoiMiIsInBzIjoiXHVkODNjXHVkZGU5XHVkODNjXHVkZGVhIDRHIC0gR2VybWFueSAtIDAxIiwiaWQiOiI4YjhkYWI4NC03OGEzLTNhMWItYTE1NS03M2FkNDk1ZTY0NmUifQ==
vless://70cc43c5-b2f4-34ac-a092-d806984a6b8c@1.13.7.91:443?encryption=none&security=reality&pbk=qGPTy8EZokn3hWp6hKBQ0MVvEuLRJCcv5UdWeP4TVhI&headerType=none&fp=chrome&type=tcp&flow=xtls-rprx-vision&sni=booking.com&sid=6ba85179e30d4fc2#%F0%9F%87%B1%F0%9F%87%B9%20Test