vaultwarden/src/static/scripts/admin.js

"use strict";
/* eslint-env es2017, browser */
/* exported BASE_URL, _post */

function getBaseUrl() {
    // If the base URL is `https://vaultwarden.example.com/base/path/admin/`,
    // `window.location.href` should have one of the following forms:
    //
    // - `https://vaultwarden.example.com/base/path/admin`
    // - `https://vaultwarden.example.com/base/path/admin/#/some/route[?queryParam=...]`
    //
    // We want to get to just `https://vaultwarden.example.com/base/path`.
    const pathname = window.location.pathname;
    const adminPos = pathname.indexOf("/admin");
    const newPathname = pathname.substring(0, adminPos != -1 ? adminPos : pathname.length);
    return `${window.location.origin}${newPathname}`;
}
const BASE_URL = getBaseUrl();

function reload() {
    // Reload the page by setting the exact same href
    // Using window.location.reload() could cause a repost.
    window.location = window.location.href;
}

function msg(text, reload_page = true) {
    text && alert(text);
    reload_page && reload();
}

function _post(url, successMsg, errMsg, body, reload_page = true) {
    let respStatus;
    let respStatusText;
    fetch(url, {
        method: "POST",
        body: body,
        mode: "same-origin",
        credentials: "same-origin",
        headers: { "Content-Type": "application/json" }
    }).then(resp => {
        if (resp.ok) {
            msg(successMsg, reload_page);
            // Abuse the catch handler by setting error to false and continue
            return Promise.reject({ error: false });
        }
        respStatus = resp.status;
        respStatusText = resp.statusText;
        return resp.text();
    }).then(respText => {
        try {
            const respJson = JSON.parse(respText);
            if (respJson.ErrorModel && respJson.ErrorModel.Message) {
                return respJson.ErrorModel.Message;
            } else {
                return Promise.reject({ body: `${respStatus} - ${respStatusText}\n\nUnknown error`, error: true });
            }
        } catch (e) {
            return Promise.reject({ body: `${respStatus} - ${respStatusText}\n\n[Catch] ${e}`, error: true });
        }
    }).then(apiMsg => {
        msg(`${errMsg}\n${apiMsg}`, reload_page);
    }).catch(e => {
        if (e.error === false) { return true; }
        else { msg(`${errMsg}\n${e.body}`, reload_page); }
    });
}

// Bootstrap Theme Selector
const getStoredTheme = () => localStorage.getItem("theme");
const setStoredTheme = theme => localStorage.setItem("theme", theme);

const getPreferredTheme = () => {
    const storedTheme = getStoredTheme();
    if (storedTheme) {
        return storedTheme;
    }

    return window.matchMedia("(prefers-color-scheme: dark)").matches ? "dark" : "light";
};

const setTheme = theme => {
    if (theme === "auto" && window.matchMedia("(prefers-color-scheme: dark)").matches) {
        document.documentElement.setAttribute("data-bs-theme", "dark");
    } else {
        document.documentElement.setAttribute("data-bs-theme", theme);
    }
};

setTheme(getPreferredTheme());

const showActiveTheme = (theme, focus = false) => {
    const themeSwitcher = document.querySelector("#bd-theme");

    if (!themeSwitcher) {
        return;
    }

    const themeSwitcherText = document.querySelector("#bd-theme-text");
    const activeThemeIcon = document.querySelector(".theme-icon-active use");
    const btnToActive = document.querySelector(`[data-bs-theme-value="${theme}"]`);
    const svgOfActiveBtn = btnToActive.querySelector("span use").innerText;

    document.querySelectorAll("[data-bs-theme-value]").forEach(element => {
        element.classList.remove("active");
        element.setAttribute("aria-pressed", "false");
    });

    btnToActive.classList.add("active");
    btnToActive.setAttribute("aria-pressed", "true");
    activeThemeIcon.innerText = svgOfActiveBtn;
    const themeSwitcherLabel = `${themeSwitcherText.textContent} (${btnToActive.dataset.bsThemeValue})`;
    themeSwitcher.setAttribute("aria-label", themeSwitcherLabel);

    if (focus) {
        themeSwitcher.focus();
    }
};

window.matchMedia("(prefers-color-scheme: dark)").addEventListener("change", () => {
    const storedTheme = getStoredTheme();
    if (storedTheme !== "light" && storedTheme !== "dark") {
        setTheme(getPreferredTheme());
    }
});


// onLoad events
document.addEventListener("DOMContentLoaded", (/*event*/) => {
    showActiveTheme(getPreferredTheme());

    document.querySelectorAll("[data-bs-theme-value]")
        .forEach(toggle => {
            toggle.addEventListener("click", () => {
                const theme = toggle.getAttribute("data-bs-theme-value");
                setStoredTheme(theme);
                setTheme(theme);
                showActiveTheme(theme, true);
            });
        });

    // get current URL path and assign "active" class to the correct nav-item
    const pathname = window.location.pathname;
    if (pathname === "") return;
    const navItem = document.querySelectorAll(`.navbar-nav .nav-item a[href="${pathname}"]`);
    if (navItem.length === 1) {
        navItem[0].className = navItem[0].className + " active";
        navItem[0].setAttribute("aria-current", "page");
    }
});