# https://github.com/daeuniverse/dae/discussions/81
# https://github.com/daeuniverse/dae/blob/main/example.dae

# load all dae files placed in ./config.d/
include {
    config.d/*.dae
}
global {
    ##### Software options.

    # tproxy port to listen on. It is NOT a HTTP/SOCKS port, and is just used by eBPF program.
    # In normal case, you do not need to use it.
    tproxy_port: 12345

    # Set it true to protect tproxy port from unsolicited traffic. Set it false to allow users to use self-managed
    # iptables tproxy rules.
    tproxy_port_protect: true

    # If not zero, traffic sent from dae will be set SO_MARK. It is useful to avoid traffic loop with iptables tproxy
    # rules.
    so_mark_from_dae: 1

    # Log level: error, warn, info, debug, trace.
    log_level: info

    # Disable waiting for network before pulling subscriptions.
    disable_waiting_network: false


    ##### Interface and kernel options.

    # The LAN interface to bind. Use it if you want to proxy LAN.
    # Multiple interfaces split by ",".
    lan_interface: br-lan

    # The WAN interface to bind. Use it if you want to proxy localhost.
    # Multiple interfaces split by ",". Use "auto" to auto detect.
    # 
    # Disable this to avoid problems with the proxy server that prevent the subscription link from being updated
    # wan_interface: auto

    # Automatically configure Linux kernel parameters like ip_forward and send_redirects. Check out
    # https://github.com/daeuniverse/dae/blob/main/docs/en/user-guide/kernel-parameters.md to see what will dae do.
    auto_config_kernel_parameter: false

    ##### Node connectivity check.

    # Host of URL should have both IPv4 and IPv6 if you have double stack in local.
    # First is URL, others are IP addresses if given.
    # Considering traffic consumption, it is recommended to choose a site with anycast IP and less response.
    #tcp_check_url: 'http://cp.cloudflare.com'
    tcp_check_url: 'http://cp.cloudflare.com,1.1.1.1,2606:4700:4700::1111'

    # The HTTP request method to `tcp_check_url`. Use 'HEAD' by default because some server implementations bypass
    # accounting for this kind of traffic.
    tcp_check_http_method: HEAD

    # This DNS will be used to check UDP connectivity of nodes. And if dns_upstream below contains tcp, it also be used to check
    # TCP DNS connectivity of nodes.
    # First is URL, others are IP addresses if given.
    # This DNS should have both IPv4 and IPv6 if you have double stack in local.
    #udp_check_dns: 'dns.google.com:53'
    udp_check_dns: 'dns.google.com:53,8.8.8.8,2001:4860:4860::8888'

    check_interval: 30s

    # Group will switch node only when new_latency <= old_latency - tolerance.
    check_tolerance: 50ms


    ##### Connecting options.

    # Optional values of dial_mode are:
    # 1. "ip". Dial proxy using the IP from DNS directly. This allows your ipv4, ipv6 to choose the optimal path
    #       respectively, and makes the IP version requested by the application meet expectations. For example, if you
    #       use curl -4 ip.sb, you will request IPv4 via proxy and get a IPv4 echo. And curl -6 ip.sb will request IPv6.
    #       This may solve some weird full-cone problem if your are be your node support that. Sniffing will be disabled
    #       in this mode.
    # 2. "domain". Dial proxy using the domain from sniffing. This will relieve DNS pollution problem to a great extent
    #       if have impure DNS environment. Generally, this mode brings faster proxy response time because proxy will
    #       re-resolve the domain in remote, thus get better IP result to connect. This policy does not impact routing.
    #       That is to say, domain rewrite will be after traffic split of routing and dae will not re-route it.
    # 3. "domain+". Based on domain mode but do not check the reality of sniffed domain. It is useful for users whose
    #       DNS requests do not go through dae but want faster proxy response time. Notice that, if DNS requests do not
    #       go through dae, dae cannot split traffic by domain.
    # 4. "domain++". Based on domain+ mode but force to re-route traffic using sniffed domain to partially recover
    #       domain based traffic split ability. It doesn't work for direct traffic and consumes more CPU resources.
    dial_mode: domain

    # Allow insecure TLS certificates. It is not recommended to turn it on unless you have to.
    allow_insecure: false

    # Timeout to waiting for first data sending for sniffing. It is always 0 if dial_mode is ip. Set it higher is useful
    # in high latency LAN network.
    sniffing_timeout: 100ms

    # TLS implementation. tls is to use Go's crypto/tls. utls is to use uTLS, which can imitate browser's Client Hello.
    tls_implementation: tls

    # The Client Hello ID for uTLS to imitate. This takes effect only if tls_implementation is utls.
    # See more: https://github.com/daeuniverse/dae/blob/331fa23c16/component/outbound/transport/tls/utls.go#L17
    utls_imitate: chrome_auto
}

# See https://github.com/daeuniverse/dae/blob/main/docs/en/configuration/dns.md for full examples.
dns {
    # For example, if ipversion_prefer is 4 and the domain name has both type A and type AAAA records, the dae will only
    # respond to type A queries and response empty answer to type AAAA queries.
    ipversion_prefer: 4

    # Give a fixed ttl for domains. Zero means that dae will request to upstream every time and not cache DNS results
    # for these domains.
    #fixed_domain_ttl {
    #    ddns.example.org: 10
    #    test.example.org: 3600
    #}

    upstream {
        # Value can be scheme://host:port, where the scheme can be tcp/udp/tcp+udp.
        # If host is a domain and has both IPv4 and IPv6 record, dae will automatically choose
        # IPv4 or IPv6 to use according to group policy (such as min latency policy).
        # Please make sure DNS traffic will go through and be forwarded by dae, which is REQUIRED for domain routing.
        # If dial_mode is "ip", the upstream DNS answer SHOULD NOT be polluted, so domestic public DNS is not recommended.

        alidns: 'udp://223.5.5.5:53'
        googledns: 'tcp+udp://8.8.8.8:53'
    }
    routing {
        # According to the request of dns query, decide to use which DNS upstream.
        # Match rules from top to bottom.
        request {
            # Lookup China mainland domains using alidns, otherwise googledns.
            qname(geosite:cn) -> alidns
            # fallback is also called default.
            fallback: googledns

            # other custom rules
            qname(full:analytics.google.com) -> googledns # do not block google analytics(console)
            qname(regex: '.+\.nixos.org$') -> googledns
            qname(geosite:category-ads) -> reject
            qname(geosite:category-ads-all) -> reject
            qtype(aaaa) -> reject
            qname(regex: '.+\.linkedin$') -> googledns
        }

        # According to the response of dns query, decide to accept or re-lookup using another DNS upstream.
        # Match rules from top to bottom.
        response {
            # Trusted upstream. Always accept its result.
            upstream(googledns) -> accept

            # Possibly polluted(domain resolved to a private ip), re-lookup using googledns.
            ip(geoip:private) && !qname(geosite:cn) -> googledns

            fallback: accept
        }
    }
}

# Node group (outbound).
group {
    proxy {
        filter: name(keyword: 'Hong Kong')
        filter: name(keyword: '香港')
        filter: name(keyword: 'Singapore')
        filter: name(keyword: '新加坡')
        # Filter nodes and give a fixed latency offset to archive latency-based failover.
        # In this example, there is bigger possibility to choose US node even if original latency of US node is higher.
        filter: name(keyword: 'USA') [add_latency: -500ms]
        filter: name(keyword: '美国') [add_latency: -500ms]
        filter: name(keyword: 'UK') [add_latency: -300ms]
        # filter: name(keyword: '英国') [add_latency: -300ms]
        # filter: name(keyword: 'Japan') [add_latency: 300ms]
        # filter: name(keyword: '日本') [add_latency: 300ms]

        # Other filters:
        #   Filter nodes from the global node pool defined by the subscription and node section above.
        #     filter: subtag(regex: '^my_', another_sub) && !name(keyword: 'ExpireAt:')
        #   Filter nodes from the global node pool defined by tag.
        #     filter: name('node_a','node_b')

        # Select the node with min average of the last 10 latencies from the group for every connection.
        policy: min_avg10
        # Other policies:
        #   random         - Randomly select a node from the group for every connection.
        #   fixed(0)       - Select the first node from the group for every connection.
        #   min            - Select the node with min last latency from the group for every connection.
        #   min_moving_avg - Select the node with min moving average of latencies from the group for every connection.
    }

    media {
        filter: name(keyword: 'Hong Kong')
        filter: name(keyword: '香港')
        filter: name(keyword: 'Singapore')
        filter: name(keyword: '新加坡')
        filter: name(keyword: 'USA') [add_latency: -500ms]
        filter: name(keyword: '美国') [add_latency: -500ms]
        filter: name(keyword: 'UK') [add_latency: -300ms]
        filter: name(keyword: '英国') [add_latency: -300ms]
        filter: name(keyword: 'Japan') [add_latency: 300ms]
        filter: name(keyword: '日本') [add_latency: 300ms]

        policy: min_avg10
    }

    ssh-proxy {
        filter: name(keyword: 'UK')
        filter: name(keyword: '英国')
        policy: min_avg10
    }

    sg {
        filter: name(keyword: 'Singapore')
        filter: name(keyword: '新加坡')
        policy: min_avg10
    }

    usa {
        filter: name(keyword: 'USA')
        filter: name(keyword: '美国')
        policy: min_avg10
    }
}

# See https://github.com/daeuniverse/dae/blob/main/docs/en/configuration/routing.md for full examples.
# Pname has the highest priority, so should be placed in the front.
# Priority of other rules is the same as the order of the rules defined in this file.
routing {
    ### Preset rules.

    # Network managers in localhost should be direct to 
    # avoid false negative network connectivity check when binding to WAN.
    pname(NetworkManager) -> direct
    pname(systemd-networkd) -> direct

    # Put it in the front to prevent broadcast, multicast and other packets that should be sent to the LAN from being
    # forwarded by the proxy.
    # "dip" means destination IP.
    dip(224.0.0.0/3, 'ff00::/8') -> direct

    # This line allows you to access private addresses directly instead of via your proxy. If you really want to access
    # private addresses in your proxy host network, modify the below line.
    dip(geoip:private) -> direct

    # --- Core rules ---#

    # Disable HTTP3(QUIC) because it usually consumes too much cpu/mem resources.
    l4proto(udp) && dport(443) -> block

    # Direct access to all Chinese mainland-related IP addresses
    dip(geoip:cn) -> direct
    domain(geosite:cn) -> direct

    # Block ads
    domain(full:analytics.google.com) -> proxy  # do not block google analytics(console)
    domain(geosite:category-ads) -> block
    domain(geosite:category-ads-all) -> block

    # DNS
    dip(8.8.8.8, 8.8.4.4) -> proxy
    dip(223.5.5.5, 223.6.6.6) -> direct
    domain(full:dns.alidns.com) -> direct
    domain(full:dns.googledns.com) -> proxy
    domain(full:dns.opendns.com) -> proxy

    # --- Rules for other commonly used sites ---#

    # SSH - tcp port 22 is blocked by many proxy servers.
    dport(22) && !dip(geoip:cn) && !domain(geosite:cn) -> ssh-proxy

    ### OpenAI
    domain(geosite:openai) -> sg
    domain(regex:'.+\.openai$') -> sg

    ### Media
    domain(geosite:netflix) -> media

    ### Proxy
    domain(suffix: linkedin.com) -> proxy
    domain(keyword:'linkedin') -> proxy
    domain(regex:'.+\.linkedin\.com$') -> proxy
    domain(regex:'.+\.quay\.io$') -> proxy
    domain(regex:'.+\.notion\.so$') -> proxy
    domain(regex:'.+\.amazon\.com$') -> proxy
    domain(regex:'.+\.oracle\.com$') -> proxy
    domain(regex:'.+\.docker\.com$') -> proxy
    domain(regex:'.+\.kubernetes\.io$') -> proxy
    domain(regex:'.+\.nixos\.org$') -> proxy

    domain(geosite:microsoft) -> proxy
    domain(geosite:linkedin) -> proxy
    domain(geosite:twitter) -> proxy
    domain(geosite:telegram) -> proxy
    domain(geosite:google) -> proxy
    domain(geosite:apple) -> proxy
    domain(geosite:category-container) -> proxy
    domain(geosite:category-dev) -> proxy
    domain(geosite:google-scholar) -> proxy
    domain(geosite:category-scholar-!cn) -> proxy

    ### Direct
    domain(regex:'.+\.edu\.cn$') -> direct
    domain(keyword:'baidu') -> direct
    domain(keyword:'bilibili') -> direct
    domain(keyword:'taobao') -> direct
    domain(keyword:'alibabadns') -> direct
    domain(keyword:'alicdn') -> direct
    domain(keyword:'tbcache') -> direct
    domain(keyword:'zhihu') -> direct
    domain(keyword:'douyu') -> direct
    domain(geosite:cloudflare-cn) -> direct

    # --- Fallback rules ---#

    # Access all other foreign sites
    domain(geosite:geolocation-!cn) -> proxy
    !dip(geoip:cn) -> proxy

    fallback: direct
}