discourse/app/assets/javascripts/admin/components/ip-lookup.js.es6

import EmberObject from "@ember/object";
import { later } from "@ember/runloop";
import Component from "@ember/component";
import { default as discourseComputed } from "discourse-common/utils/decorators";
import { ajax } from "discourse/lib/ajax";
import AdminUser from "admin/models/admin-user";
import copyText from "discourse/lib/copy-text";

export default Component.extend({
  classNames: ["ip-lookup"],

  @discourseComputed("other_accounts.length", "totalOthersWithSameIP")
  otherAccountsToDelete(otherAccountsLength, totalOthersWithSameIP) {
    // can only delete up to 50 accounts at a time
    const total = Math.min(50, totalOthersWithSameIP || 0);
    const visible = Math.min(50, otherAccountsLength || 0);
    return Math.max(visible, total);
  },

  actions: {
    lookup() {
      this.set("show", true);

      if (!this.location) {
        ajax("/admin/users/ip-info", { data: { ip: this.ip } }).then(location =>
          this.set("location", EmberObject.create(location))
        );
      }

      if (!this.other_accounts) {
        this.set("otherAccountsLoading", true);

        const data = {
          ip: this.ip,
          exclude: this.userId,
          order: "trust_level DESC"
        };

        ajax("/admin/users/total-others-with-same-ip", { data }).then(result =>
          this.set("totalOthersWithSameIP", result.total)
        );

        AdminUser.findAll("active", data).then(users => {
          this.setProperties({
            other_accounts: users,
            otherAccountsLoading: false
          });
        });
      }
    },

    hide() {
      this.set("show", false);
    },

    copy() {
      let text = `IP: ${this.ip}\n`;
      const location = this.location;
      if (location) {
        if (location.hostname) {
          text += `${I18n.t("ip_lookup.hostname")}: ${location.hostname}\n`;
        }

        text += I18n.t("ip_lookup.location");
        if (location.location) {
          text += `: ${location.location}\n`;
        } else {
          text += `: ${I18n.t("ip_lookup.location_not_found")}\n`;
        }

        if (location.organization) {
          text += I18n.t("ip_lookup.organisation");
          text += `: ${location.organization}\n`;
        }
      }

      const $copyRange = $('<p id="copy-range"></p>');
      $copyRange.html(text.trim().replace(/\n/g, "<br>"));
      $(document.body).append($copyRange);
      if (copyText(text, $copyRange[0])) {
        this.set("copied", true);
        later(() => this.set("copied", false), 2000);
      }
      $copyRange.remove();
    },

    deleteOtherAccounts() {
      bootbox.confirm(
        I18n.t("ip_lookup.confirm_delete_other_accounts"),
        I18n.t("no_value"),
        I18n.t("yes_value"),
        confirmed => {
          if (confirmed) {
            this.setProperties({
              other_accounts: null,
              otherAccountsLoading: true,
              totalOthersWithSameIP: null
            });

            ajax("/admin/users/delete-others-with-same-ip.json", {
              type: "DELETE",
              data: {
                ip: this.ip,
                exclude: this.userId,
                order: "trust_level DESC"
              }
            }).then(() => this.send("lookup"));
          }
        }
      );
    }
  }
});