{%
/*
 * Part of AREDN® -- Used for creating Amateur Radio Emergency Data Networks
 * Copyright (C) 2024 Tim Wilkinson
 * See Contributors file for additional contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation version 3 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Additional Terms:
 *
 * Additional use restrictions exist on the AREDN® trademark and logo.
 * See AREDNLicense.txt for more info.
 *
 * Attributions to the AREDN® Project must be retained in the source code.
 * If importing this code into a new or existing project attribution
 * to the AREDN® project must be added to the source code.
 *
 * You must not misrepresent the origin of the material contained within.
 *
 * Modified versions must be modified to attribute to the original source
 * and be marked in reasonable ways as differentiate it from the original
 * version
 */
%}
{%
if (request.env.REQUEST_METHOD === "PUT") {
    configuration.prepareChanges();
    if ("mesh_ip" in request.args) {
        if (match(request.args.mesh_ip, constants.reIP)) {
            configuration.setSetting("wifi_ip", request.args.mesh_ip);
        }
    }
    if ("dhcp_mode" in request.args) {
        const mode = int(request.args.dhcp_mode || 3);
        if (mode === -1) {
            configuration.setSetting("lan_dhcp", 0);
        }
        else if (mode >= 0 && mode <= 5) {
            configuration.setSetting("lan_dhcp", 1);
            configuration.setSetting("dmz_mode", mode);
            if (mode >= 2) {
                const o_lan_ip = iptoarr(configuration.getSettingAsString("dmz_lan_ip"));
                const wifi_ip = iptoarr(configuration.getSettingAsString("wifi_ip"));
                let wifi_shift = (wifi_ip[0] << 24) + (wifi_ip[1] << 16) + (wifi_ip[2] << 8) + wifi_ip[3];
                wifi_shift = (wifi_shift << mode) & 0x00ffffff;
                let dmz_lan_ip = 0x0a000001 + wifi_shift;
                dmz_lan_ip = arrtoip([ (dmz_lan_ip >> 24) & 0xff, (dmz_lan_ip >> 16) & 0xff, (dmz_lan_ip >> 8) & 0xff, dmz_lan_ip & 0xff ]);
                let dmz_lan_mask = 0xffffffff << mode;
                dmz_lan_mask = arrtoip([ (dmz_lan_mask >> 24) & 0xff, (dmz_lan_mask >> 16) & 0xff, (dmz_lan_mask >> 8) & 0xff, dmz_lan_mask & 0xff ]);
                const dmz_dhcp_start = (wifi_shift + 2) & 0xff;
                const dmz_dhcp_end = dmz_dhcp_start + (2 << (mode - 1)) - 4;
                configuration.setSetting("dmz_lan_ip", dmz_lan_ip);
                configuration.setSetting("dmz_lan_mask", dmz_lan_mask);
                configuration.setSetting("dmz_dhcp_start", dmz_dhcp_start);
                configuration.setSetting("dmz_dhcp_end", dmz_dhcp_end);
                configuration.setSetting("dmz_dhcp_limit", dmz_dhcp_end - dmz_dhcp_start + 1);
                const dhcp = configuration.getDHCP();
                let f = fs.open(dhcp.aliases);
                if (f) {
                    const aliases = [];
                    const n_lan_ip = iptoarr(configuration.getSettingAsString("dmz_lan_ip"));
                    for (let l = f.read("line"); length(l); l = f.read("line")) {
                        const v = match(trim(l), /^(.+) (.+)$/);
                        if (v) {
                            const octet = max(dmz_dhcp_start, min(dmz_dhcp_end, n_lan_ip[3] + iptoarr(v[1])[3] - o_lan_ip[3]));
                            push(aliases, `${arrtoip([ n_lan_ip[0], n_lan_ip[1], n_lan_ip[2], octet ])} ${v[2]}\n`);
                        }
                    }
                    f.close();
                    f = fs.open(dhcp.aliases, "w");
                    if (f) {
                        for (let i = 0; i < length(aliases); i++) {
                            f.write(aliases[i]);
                        }
                        f.close();
                    }
                }
            }
        }
    }
    if ("lan_dhcp_ip" in request.args) {
        if (match(request.args.lan_dhcp_ip, constants.reIP)) {
            configuration.setSetting("lan_ip", request.args.lan_dhcp_ip);
        }
    }
    if ("lan_dhcp_netmask" in request.args) {
        if (match(request.args.lan_dhcp_netmask, constants.reNetmask)) {
            configuration.setSetting("lan_mask", request.args.lan_dhcp_mask);
        }
    }
    if ("lan_dhcp_start" in request.args) {
        if (match(request.args.lan_dhcp_start, /^([2-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-4])$/)) {
            configuration.setSetting("dhcp_start", request.args.lan_dhcp_start);
        }
    }
    if ("lan_dhcp_end" in request.args) {
        if (match(request.args.lan_dhcp_end, /^([2-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-4])$/)) {
            configuration.setSetting("dhcp_end", request.args.lan_dhcp_end);
        }
    }
    if ("wan_enable" in request.args) {
        if (request.args.wan_enable === "off") {
            configuration.setSetting("wan_proto", "disabled");
        }
        else {
            configuration.setSetting("wan_proto", "dhcp");
        }
    }
    if ("wan_mode" in request.args) {
        if (request.args.wan_mode === "0") {
            configuration.setSetting("wan_proto", "dhcp");
        }
        else {
            configuration.setSetting("wan_proto", "static");
        }
    }
    if ("wan_ip" in request.args) {
        if (match(request.args.wan_ip, /^((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.?\b){4}$/)) {
            configuration.setSetting("wan_ip", request.args.wan_ip);
        }
    }
    if ("wan_mask" in request.args) {
        if (match(request.args.wan_mask, /^(((255\.){3}(255|254|252|248|240|224|192|128|0+))|((255\.){2}(255|254|252|248|240|224|192|128|0+)\.0)|((255\.)(255|254|252|248|240|224|192|128|0+)(\.0+){2})|((255|254|252|248|240|224|192|128|0+)(\.0+){3}))$/)) {
            configuration.setSetting("wan_mask", request.args.wan_mask);
        }
    }
    if ("wan_gw" in request.args) {
        if (match(request.args.wan_gw, /^((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.?\b){4}$/)) {
            configuration.setSetting("wan_gw", request.args.wan_gw);
        }
    }
    if ("wan_dns1" in request.args) {
        if (match(request.args.wan_dns1, /^((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.?\b){4}$/)) {
            configuration.setSetting("wan_dns1", request.args.wan_dns1);
        }
    }
    if ("wan_dns2" in request.args) {
        if (match(request.args.wan_dns2, /^((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.?\b){4}$/)) {
            configuration.setSetting("wan_dns2", request.args.wan_dns2);
        }
    }
    if ("wan_vlan" in request.args) {
        const wan_iface = split(configuration.getSettingAsString("wan_intf", ""), ".");
        const wan_vlan = int(request.args.wan_vlan || 0);
        if (wan_vlan === 0) {
            configuration.setSetting("wan_intf", wan_iface[0]);
        }
        else if (wan_vlan >= 3 && wan_vlan <= 4095) {
            configuration.setSetting("wan_intf", `${wan_iface[0]}.${wan_vlan}`);
        }
    }
    if ("olsrd_gw" in request.args) {
        uciMesh.set("aredn", "@wan[0]", "olsrd_gw", request.args.olsrd_gw === "on" ? 1 : 0);
    }
    if ("lan_dhcp_route" in request.args) {
        uciMesh.set("aredn", "@wan[0]", "lan_dhcp_route", request.args.lan_dhcp_route === "on" ? 1 : 0);
    }
    if ("lan_dhcp_defaultroute" in request.args) {
        uciMesh.set("aredn", "@wan[0]", "lan_dhcp_defaultroute", request.args.lan_dhcp_defaultroute === "on" ? 1 : 0);
    }
    uciMesh.commit("aredn");
    configuration.saveSettings();
    print(_R("changes"));
    return;
}
if (request.env.REQUEST_METHOD === "DELETE") {
    configuration.revertModalChanges();
    print(_R("changes"));
    return;
}
const dmz_mode = configuration.getSettingAsInt("dmz_mode", 3);
const dhcp = configuration.getDHCP("nat");
const wan_proto = configuration.getSettingAsString("wan_proto", "disabled");
const wan_iface = split(configuration.getSettingAsString("wan_intf", ""), ".");
const wan_vlan = wan_iface[1] ? wan_iface[1] : "";
const gateway_nat = dmz_mode !== 1 ? dhcp.gateway : "172.27.0.1";
const gateway_altnet = dmz_mode === 1 ? dhcp.gateway : "";
%}
<div class="dialog">
    {{_R("dialog-header", "Network")}}
    <div>
        <div class="cols">
            <div>
                <div class="o">Mesh A&zwnj;ddress</div>
                <div class="m">The primary address of this node</div>
            </div>
            <div style="flex:0">
                <input hx-put="{{request.env.REQUEST_URI}}" name="mesh_ip" type="text" size="14" placeholder="10.X.X.X" pattern="10\.((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.?\b){3}" value="{{configuration.getSettingAsString("wifi_ip")}}">
            </div>
        </div>
        {{_H("The primary address of this AREDN node. This will always be of the form 10.X.X.X. The address is generated automatically based on hardware information so it will
        always be the same even if you reinstall this node from scratch. You shouldn't have to change it.")}}
        <hr>
        <div class="hideable">
            <div class="cols">
                <div>
                    <div class="o">LAN Size</div>
                    <div class="m">Size of LAN subnet</div>
                </div>
                <div style="flex:0">
                    <select hx-put="{{request.env.REQUEST_URI}}" hx-swap="none" name="dhcp_mode">
                        <option value="-1" {{!dhcp.enabled ? "selected" : ""}}>Disabled</option>
                        <option value="0" {{dhcp.enabled && dmz_mode == 0 ? "selected" : ""}}>NAT</option>
                        <option value="2" {{dhcp.enabled && dmz_mode == 2 ? "selected" : ""}}>1 host</option>
                        <option value="3" {{dhcp.enabled && dmz_mode == 3 ? "selected" : ""}}>5 hosts</option>
                        <option value="4" {{dhcp.enabled && dmz_mode == 4 ? "selected" : ""}}>13 hosts</option>
                        <option value="5" {{dhcp.enabled && dmz_mode == 5 ? "selected" : ""}}>29 hosts</option>
                    </select>
                </div>
            </div>
            {{_H("Select how many hosts you want to support on this nodes LAN network. This determines the size of the netmask associated with that network.
            You can also select NAT which allows more hosts, firewalls your LAN hosts from the Mesh network, but requires explicity ports to be forwarded when
            creating services.")}}
            <div class="compact hideable0">
                <div class="cols">
                    <div>
                        <div class="o">IP A&zwnj;ddress</div>
                        <div class="m">Gateway IP a&zwnj;ddress for this LAN network</div>
                    </div>
                    <div style="flex:0">
                        <input hx-put="{{request.env.REQUEST_URI}}" name="lan_dhcp_ip" type="text" size="15" required pattern="{{constants.patIP}}" value="{{gateway_nat}}">
                    </div>
                </div>
                <div class="cols">
                    <div>
                        <div class="o">Netmask</div>
                        <div class="m">Netmask for this LAN network</div>
                    </div>
                    <div style="flex:0">
                        <input hx-put="{{request.env.REQUEST_URI}}" name="lan_dhcp_netmask" type="text" size="15" required pattern="{{constants.patNetmask}}" value="{{dhcp.mask}}">
                    </div>
                </div>
                <div class="cols">
                    <div>
                        <div class="o">DHCP Start</div>
                        <div class="m">Start of the DHCP range for addresses allocate</div>
                    </div>
                    <div style="flex:0">
                        <input hx-put="{{request.env.REQUEST_URI}}" name="lan_dhcp_start" type="text" size="4" required pattern="([2-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-4])" value="{{split(dhcp.start, ".")[3]}}">
                    </div>
                </div>
                <div class="cols">
                    <div>
                        <div class="o">DHCP End</div>
                        <div class="m">Last address of the DHCP range for addresses allocated</div>
                    </div>
                    <div style="flex:0">
                        <input hx-put="{{request.env.REQUEST_URI}}" name="lan_dhcp_end" type="text" size="4" required pattern="([2-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-4])" value="{{split(dhcp.end, ".")[3]}}">
                    </div>
                </div>
            </div>
            <div class="compact hideable1">
                <div class="cols">
                    <div>
                        <div class="o">AltNET IP A&zwnj;ddress</div>
                        <div class="m">Gateway IP a&zwnj;ddress for AltNET LAN network</div>
                    </div>
                    <div style="flex:0">
                        <input hx-put="{{request.env.REQUEST_URI}}" name="lan_dhcp_ip" type="text" size="15" required pattern="((25[0-5]|(2[0-4]|1[0-9]|[1-9]|)[0-9])\.?\b){4}" value="{{gateway_altnet}}">
                    </div>
                </div>
                <div class="cols">
                    <div>
                        <div class="o">Netmask</div>
                        <div class="m">Netmask for AltNET LAN network</div>
                    </div>
                    <div style="flex:0">
                        <input hx-put="{{request.env.REQUEST_URI}}" name="lan_dhcp_netmask" type="text" size="15" required pattern="{{constants.patNetmask}}" value="{{dhcp.mask}}">
                    </div>
                </div>
                <div class="cols">
                    <div>
                        <div class="o">DHCP Start</div>
                        <div class="m">Start of the DHCP range for addresses allocate</div>
                    </div>
                    <div style="flex:0">
                        <input hx-put="{{request.env.REQUEST_URI}}" name="lan_dhcp_start" type="text" size="4" required pattern="([2-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-4])" value="{{split(dhcp.start, ".")[3]}}">
                    </div>
                </div>
                <div class="cols">
                    <div>
                        <div class="o">DHCP End</div>
                        <div class="m">Last address of the DHCP range for addresses allocated</div>
                    </div>
                    <div style="flex:0">
                        <input hx-put="{{request.env.REQUEST_URI}}" name="lan_dhcp_end" type="text" size="4" required pattern="([2-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-4])" value="{{split(dhcp.end, ".")[3]}}">
                    </div>
                </div>
            </div>
        </div>
        <hr>
        <div class="hideable">
            <div class="cols">
                <div>
                    <div class="o">WAN Enable</div>
                    <div class="m">Allow node to directly access the Internet</div>
                </div>
                <div style="flex:0">
                    {{_R("switch", { name: "wan_enable", value: wan_proto === "disabled" ? false : true })}}
                </div>
            </div>
            {{_H("Enable the WAN interface on this node, to allow it to access the Internet directly.")}}
            <div class="compact hideable hideable0">
                <div class="cols">
                    <div>
                        <div class="o">Mode</div>
                        <div class="m">Static or DHCP mode</div>
                    </div>
                    <div style="flex:0">
                        <select hx-put="{{request.env.REQUEST_URI}}" hx-swap="none" name="wan_mode">
                            <option value="0" {{wan_proto !== "static" ? "selected" : ""}}>DHCP</option>
                            <option value="1" {{wan_proto === "static" ? "selected" : ""}}>Static</option>
                        </select>
                    </div>
                </div>
                {{_H("The WAN interface can either use DHCP to retrieve an IP address, or it can be set statically.")}}
                <div class="hideable1">
                    <div class="cols">
                        <div>
                            <div class="o">A&zwnj;ddress</div>
                            <div class="m">WAN IP a&zwnj;ddress</div>
                        </div>
                        <div style="flex:0">
                            <input hx-put="{{request.env.REQUEST_URI}}" name="wan_ip" type="text" size="15" pattern="{{constants.patIP}}" value="{{configuration.getSettingAsString("wan_ip")}}">
                        </div>
                    </div>
                    {{_H("A fixed IP address to assign to the WAN interace on this node.")}}
                    <div class="cols">
                        <div>
                            <div class="o">Netmask</div>
                            <div class="m">WAN netmask</div>
                        </div>
                        <div style="flex:0">
                            <input hx-put="{{request.env.REQUEST_URI}}" name="wan_mask" type="text" size="15" pattern="(((255\.){3}(255|254|252|248|240|224|192|128|0+))|((255\.){2}(255|254|252|248|240|224|192|128|0+)\.0)|((255\.)(255|254|252|248|240|224|192|128|0+)(\.0+){2})|((255|254|252|248|240|224|192|128|0+)(\.0+){3}))" value="{{configuration.getSettingAsString("wan_mask")}}">
                        </div>
                    </div>
                    {{_H("The netmask (e.g. 255.255.255.0) for this interface.")}}
                    <div class="cols">
                        <div>
                            <div class="o">Gateway</div>
                            <div class="m">Default gateway</div>
                        </div>
                        <div style="flex:0">
                            <input hx-put="{{request.env.REQUEST_URI}}" name="wan_gw" type="text" size="15" pattern="{{constants.patIP}}" value="{{configuration.getSettingAsString("wan_gw")}}">
                        </div>
                    </div>
                    {{_H("The default gateway his node should use to access the Internet.")}}
                </div>
            </div>
        </div>
        <hr>
        <div class="cols">
            <div>
                <div class="o">DNS</div>
                <div class="m">Internet DNS servers</div>
            </div>
            <div style="flex:0;white-space:nowrap">
                <input hx-put="{{request.env.REQUEST_URI}}" name="wan_dns1" type="text" size="15" pattern="{{constants.patIP}}" value="{{configuration.getSettingAsString("wan_dns1")}}">
                <input hx-put="{{request.env.REQUEST_URI}}" name="wan_dns2" type="text" size="15" pattern="{{constants.patIP}}" value="{{configuration.getSettingAsString("wan_dns2")}}">
            </div>
        </div>
        {{_H("For hosts not on the Mesh, use these DNS servers to resolve names to IP addresses.")}}
        {{_R("dialog-advanced")}}
        <div class="compact">
        {% if (includeAdvanced) { %}
            {% if (length(hardware.getEthernetPorts()) < 2) { %}
            <div class="cols">
                <div>
                    <div class="o">WAN VLAN</div>
                    <div class="m">Vlan used for Internet access</div>
                </div>
                <div style="flex:0">
                    <input hx-put="{{request.env.REQUEST_URI}}" name="wan_vlan" type="text" size="8" placeholder="Untagged" pattern="\d+" value="{{wan_vlan}}">
                </div>
            </div>
            {{_H("By default, the WAN uses an untagged VLAN on multi-port devices, and VLAN 1 on single port devices. This can be changed here if your setup requires something different.
            Enter the VLAN number required, or leave blank for untagged.")}}
            {% } %}
            <div class="cols">
                <div>
                    <div class="o">Mesh to WAN</div>
                    <div class="m">Allow any mesh device to use local WAN.</div>
                </div>
                <div style="flex:0">
                    {{_R("switch", { name: "olsrd_gw", value: uciMesh.get("aredn", "@wan[0]", "olsrd_gw") !== "0" })}}
                </div>
            </div>
            {{_H("Allow any node or device on the mesh to use our local Internet connection. This is disabled by default.")}}
            <div class="cols">
                <div>
                    <div class="o">LAN to WAN</div>
                    <div class="m">Allow any LAN device to use local WAN.</div>
                </div>
                <div style="flex:0">
                    {{_R("switch", { name: "lan_dhcp_route", value: uciMesh.get("aredn", "@wan[0]", "lan_dhcp_route") !== "0" })}}
                </div>
            </div>
            {{_H("Allow LAN devices connected to this node to use our Internet connection. This is enabled by default.")}}
            <div class="cols">
                <div>
                    <div class="o">LAN default route</div>
                    <div class="m">Provide LAN devices with a default route.</div>
                </div>
                <div style="flex:0">
                    {{_R("switch", { name: "lan_dhcp_defaultroute", value: uciMesh.get("aredn", "@wan[0]", "lan_dhcp_defaultroute") !== "0" })}}
                </div>
            </div>
            {{_H("Provide a default route to a LAN connected device, even if our local WAN is disabled. By default this is only provided to
            devices if our local WAN is available.")}}
        {% } %}
        </div>
    </div>
    {{_R("dialog-footer")}}
    <script>
    (function(){
    {{_R("open")}}
    })();
    </script>
</div>