{%
/*
 * 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
 */
%}
{%
function getSshKeys()
{
    let options = "<option value='-'>-</option>";
    const f = fs.open("/etc/dropbear/authorized_keys");
    if (f) {
        const re = /^(.+) (.+) (.+)$/;
        for (let l = f.read("line"); length(l); l = f.read("line")) {
            const m = match(trim(l), re);
            if (m) {
                options += `<option value="${m[3]}">${m[3]}</option>`;
            }
        }
        f.close();
    }
    return options;
}
if (request.env.REQUEST_METHOD === "PUT") {
    if ("theme" in request.args) {
        const theme = request.args.theme;
        if (fs.access(`${config.application}/resource/css/themes/${theme}.css`)) {
            fs.unlink(`${config.application}/resource/css/theme.css`);
            fs.symlink(`themes/${theme}.css`, `${config.application}/resource/css/theme.css`);
            if (config.resourcehash) {
                const themes = fs.lsdir(`${config.application}/resource/css/themes`);
                const re = regexp(`^${theme}\.css\.(.+)\.gz`);
                for (let i = 0; i < length(themes); i++) {
                    const m = match(themes[i], re);
                    if (m) {
                        fs.unlink(`${config.application}/resource/css/theme.version`);
                        fs.symlink(m[1], `${config.application}/resource/css/theme.version`);
                        break;
                    }
                }
            }
        }
        return;
    }
    configuration.prepareChanges();
    if ("description_node" in request.args) {
        configuration.setSetting("description_node", replace(request.args.description_node || "", "'", "’"));
    }
    if ("notes" in request.args) {
        uciMesh.set("aredn", "@notes[0]", "private", replace(request.args.notes || "", "'", "’"));
        uciMesh.commit("aredn");
    }
    if ("node_name" in request.args) {
        const name = request.args.node_name;
        if (match(name, constants.reNodename)) {
            configuration.setName(name);
            uciMesh.foreach("vtun", "server", s => {
                const netip = s.netip;
                if (index(netip, ":") !== -1) {
                    const np = split(netip, ":");
                    const n = iptoarr(np[0]);
                    uciMesh.set("vtun", s[".name"], "node", `${uc(substr(name, 0, 23))}-${n[0]}-${n[1]}-${n[2]}-${n[3]}:${np[1]}`);
                }
                else {
                    const n = iptoarr(netip);
                    uciMesh.set("vtun", s[".name"], "node", `${uc(substr(name, 0, 23))}-${n[0]}-${n[1]}-${n[2]}-${n[3]}`);
                }
            });
            uciMesh.commit("vtun");
        }
    }
    if ("passwd" in request.args) {
        configuration.setPassword(request.args.passwd);
    }
    if ("ssh_remove" in request.args) {
        print(request.args);
        const keys = split(fs.readfile("/etc/dropbear/authorized_keys"), "\n");
        const re = /^(.+) (.+) (.+)$/;
        for (let i = 0; i < length(keys); i++) {
            const m = match(keys[i], re);
            if (m && m[3] === request.args.ssh_remove) {
                splice(keys, i, 1);
                break;
            }
        }
        fs.writefile("/etc/dropbear/authorized_keys", join("\n", keys));
        print(getSshKeys());
    }
    if ("ssh_add" in request.args) {
        configuration.prepareChanges();
        const key = fs.readfile(request.args.ssh_add);
        if (key && match(trim(key), /^(ssh-rsa|ecdsa-sha2-nistp256) [a-zA-Z0-9+\/=]+ .+$/)) {
            const keys = fs.readfile("/etc/dropbear/authorized_keys") || "";
            fs.writefile("/etc/dropbear/authorized_keys", `${keys}${key}`);
        }
        print(getSshKeys());
    }
    configuration.saveSettings();
    print(_R("changes"));
    return;
}
if (request.env.REQUEST_METHOD === "DELETE") {
    configuration.revertModalChanges();
    print(_R("changes"));
    return;
}
%}
<div class="dialog basics">
    {{_R("dialog-header", "Name &amp; Security")}}
    <div>
        <div class="cols">
            <div>
                <div class="o">Node Name</div>
                <div class="m">This node's unique name</div>
            </div>
            <div style="flex:0">
                <input name="node_name" hx-put="{{request.env.REQUEST_URI}}" hx-swap="none" type="text" minlength="4" maxlength="63" size="30" required pattern="{{constants.patNodename}}" value="{{configuration.getName()}}">
            </div>
        </div>
        {{_H("Change the node's unique name. The name must start with your callsign and be less than 64 characters long.")}}
        <div class="cols">
            <div>
                <div class="o">Description</div>
                <div class="m">Information about this node</div>
            </div>
            <div style="flex:0">
                <textarea name="description_node" style="width:340px" rows="2" columns="80" hx-put="{{request.env.REQUEST_URI}}">{{configuration.getSettingAsString("description_node", "")}}</textarea>
            </div>
        </div>
        {{_H("Some optional descriptive text about this node. This can be anything you think relevant.
        People include various thing, such as some basic information about the location or hardware or
        the services this node provides. Some people include alternate ways to reach the owner (e.g em&zwnj;ail
        address).")}}
        <div class="cols">
            <div>
                <div class="o">Notes</div>
                <div class="m">Private notes about this node</div>
            </div>
            <div style="flex:0">
                <textarea name="notes" style="width:340px" rows="2" columns="80" hx-put="{{request.env.REQUEST_URI}}">{{uciMesh.get("aredn", "@notes[0]", "private") || ""}}</textarea>
            </div>
        </div>
        {{_H("Private notes about this node which are only visible to the operator. This can be anything
        thought relevant or useful. For example it might include information about custom configurations
        or attached devices.")}}
        <div class="cols">
            <div>
                <div class="o">Theme</div>
                <div class="m">Display theme and colors</div>
            </div>
            <div style="flex:0">
                {%
                    const theme = fs.readlink(`${config.application}/resource/css/theme.css`);
                    const themes = fs.lsdir(`${config.application}/resource/css/themes`);
                    
                %}
                <select name="theme" hx-put="{{request.env.REQUEST_URI}}" hx-swap="none" hx-on:htmx:after-request="location.reload()">
                    <option value="default" {{theme === 'themes/default.css' ? 'selected': ''}}>default</option>
                {%
                    for (let i = 0; i < length(themes); i++) {
                        const t = themes[i];
                        const m = match(t, /^(.*)\.css$/);
                        if (t !== "default.css" && m) {
                            print(`<option value="${m[1]}" ${theme === "themes/" + t ? "selected": ""}>${replace(m[1], /[_\-]/, " ")}</option>`);
                        }
                    }
                %}
                </select>
            </div>
        </div>
        {{_H("Select the display theme for this node. This theme determines how everyone see this node when they visit. The
        default theme automatically selects either Light or Dark depending on the viewers browser settings.")}}
        <hr>
        <div class="password">
            <div class="cols">
                <div>
                    <div class="o">New Password</div>
                    <div class="m">Change the node password</div>
                </div>
                <div>
                    {{_R("password", { name: "passwd1", pattern: "[^#'\"]+" })}}
                </div>
            </div>
            <div class="cols">
                <div>
                    <div class="o">Retype Password</div>
                    <div class="m">Passwords must match</div>
                </div>
                <div>
                    {{_R("password", { name: "passwd2" })}}
                </div>
            </div>
            {{_H("Set a new password for this device by entering it twice in the boxes. Don't use the # or any quote character. This password
            is used for logging into the UI as well as telnet and ssh access.")}}
        </div>
        {{_R("dialog-advanced")}}
        <div>
        {% if (includeAdvanced) { %}
            <div class="cols">
                <div>
                    <div class="o">Upload SSH Key</div>
                    <div class="m">Add SSH key</div>
                </div>
                <div>
                    <input name="ssh_add" type="file" accept=".pub">
                </div>
            </div>
            <div class="cols">
                <div>
                    <div class="o">Remove SSH Key</div>
                    <div class="m">Delete SSH key</div>
                </div>
                <div style="flex:0">
                    <select name="ssh_remove">{{getSshKeys()}}</select>
                </div>
            </div>
            {{_H("Console access to the node is possible using SSH. To avoid typing a password you can upload an SSH public key which allows
            password-less login. Multiple keys can be uploaded above, and keys can also be selectively removed.")}}
            <div class="cols">
                <div></div>
                <div style="flex:0">
                    <button id="ssh_change" disabled hx-trigger="none" hx-encoding="multipart/form-data">Upload or Remove Key</button>
                </div>
            </div>
        {% } %}
        </div>
    </div>
    {{_R("dialog-footer")}}
    <script>
    (function(){
        {{_R("open")}}
        htmx.on("dialog input[name=passwd1]", "keyup", e => {
            const v = e.target.value;
            if (v === "hsmm") {
                htmx.find("dialog input[name=passwd1]").pattern = "BAD";
            }
            else {
                htmx.find("dialog input[name=passwd1]").pattern = `[^#'"]+`;
            }
            htmx.find("dialog input[name=passwd2]").required = v ? "required" : "";
            htmx.find("dialog input[name=passwd2]").pattern = v;
        });
        htmx.on("#dialog-done", "click", _ => {
            const passwd1 = htmx.find("dialog input[name=passwd1]");
            const passwd2 = htmx.find("dialog input[name=passwd2]");
            if (passwd1.validity.valid && passwd2.validity.valid && passwd1.value !== "" && passwd1.value === passwd2.value) {
                htmx.ajax("PUT", "{{request.env.REQUEST_URI}}", {
                    values: {
                        passwd: passwd1.value
                    },
                    swap: "none"
                });
            }
        });
        {% if (includeAdvanced) { %}
        htmx.on("dialog input[name=ssh_add]", "change", e => {
            htmx.find("dialog select[name=ssh_remove]").value = "-";
            if (e.target.value === "-") {
                htmx.find("dialog #ssh_change").disabled = true;
                htmx.find("dialog #ssh_change").innerHTML = "Upload or Remove Key";
            }
            else {
                htmx.find("dialog #ssh_change").disabled = false;
                htmx.find("dialog #ssh_change").innerHTML = "Upload Key";
            }
        });
        htmx.on("dialog select[name=ssh_remove]", "change", e => {
            htmx.find("dialog input[name=ssh_add]").value = "";
            if (e.target.value === "-") {
                htmx.find("dialog #ssh_change").disabled = true;
                htmx.find("dialog #ssh_change").innerHTML = "Upload or Remove Key";
            }
            else {
                htmx.find("dialog #ssh_change").disabled = false;
                htmx.find("dialog #ssh_change").innerHTML = "Remove Key";
            }
        });
        htmx.on("dialog #ssh_change", "click", e => {
            const upload = htmx.find("dialog input[name=ssh_add]").files[0];
            const remove = htmx.find("dialog select[name=ssh_remove]").value;
            if (upload) {
                htmx.ajax("PUT", "{{request.env.REQUEST_URI}}", {
                    source: e.currentTarget,
                    values: {
                        "ssh_add": upload
                    },
                    target: "dialog select[name=ssh_remove]"
                }).then(_ => htmx.find("dialog input[name=ssh_add]").value = "");
            }
            else if (remove) {
                htmx.ajax("PUT", "{{request.env.REQUEST_URI}}", {
                    values: {
                        "ssh_remove": remove
                    },
                    target: "dialog select[name=ssh_remove]"
                });
            }
            htmx.find("dialog #ssh_change").disabled = true;
            htmx.find("dialog #ssh_change").innerHTML = "Upload or Remove Key";
        });
        {% } %}
    })();
    </script>
    {{_R("password-ctrl")}}
</div>