Line data    Source code

       1              : /*
       2              :  * Copyright (C) 2018 Red Hat, Inc.
       3              :  * SPDX-License-Identifier: LGPL-2.1-or-later
       4              :  */
       5              : 
       6          631 : import React from "react";
       7              : 
       8          631 : import cockpit from "cockpit";
       9              : 
      10           42 : export function fmt_to_fragments(format: string, ...args: React.ReactNode[]) {
      11           42 :     const fragments = format.split(/(\$[0-9]+)/g).map(part => {
      12           42 :         if (part[0] == "$") {
      13           42 :             return args[parseInt(part.slice(1))]; // placeholder, from `args`
      14           42 :         } else
      15           42 :             return part; // literal string content
      16           42 :     });
      17              : 
      18           42 :     return React.createElement(React.Fragment, { }, ...fragments);
      19           42 : }
      20              : 
      21              : /**
      22              :  * Checks if a JsonValue is a JsonObject, and acts as a type guard.
      23              :  *
      24              :  * This function produces correct results for any possible JsonValue, and also
      25              :  * for undefined.  If you pass other types of values to this function it may
      26              :  * return an incorrect result (ie: it doesn't check deeply, so anything that
      27              :  * looks like a "simple object" will pass the check).
      28              :  */
      29          110 : export function is_json_dict(value: cockpit.JsonValue | undefined): value is cockpit.JsonObject {
      30          110 :     return value?.constructor === Object;
      31          110 : }
      32              : 
      33          110 : function try_fields(
      34          110 :     dict: cockpit.JsonObject, fields: (string | undefined)[], def: cockpit.JsonValue
      35          110 : ): cockpit.JsonValue {
      36          110 :     for (const field of fields)
      37          110 :         if (field && field in dict)
      38          108 :             return dict[field];
      39           19 :     return def;
      40          110 : }
      41              : 
      42              : /**
      43              :  * Get an entry from a manifest's ".config[config_name]" field.
      44              :  *
      45              :  * This can either be a direct value, e.g.
      46              :  *
      47              :  *   "config": { "color": "yellow" }
      48              :  *
      49              :  * Or an object indexed by any value in "matches". Commonly these are fields
      50              :  * from os-release(5) like PLATFORM_ID or ID; e.g.
      51              :  *
      52              :  *   "config": {
      53              :  *      "fedora": { "color": "blue" },
      54              :  *      "platform:el9": { "color": "red" }
      55              :  *  }
      56              :  */
      57              : 
      58              : /** Parse `sessionStorage.cockpit_anaconda` as JSON (storaged uses the object when present). */
      59          113 : export function read_anaconda_session_storage(): cockpit.JsonValue | null {
      60          113 :     try {
      61          113 :         const value = JSON.parse(
      62          113 :             window.sessionStorage.getItem("cockpit_anaconda") as string
      63          113 :         ) as cockpit.JsonValue;
      64          113 :         if (value)
      65           24 :             console.log("ANACONDA", value);
      66          113 :         return value;
      67           21 :     } catch {
      68           21 :         console.warn("Can't parse cockpit_anaconda configuration as JSON");
      69           21 :         return null;
      70           21 :     }
      71          113 : }
      72              : 
      73              : /** True when embedded in Anaconda (parent sets JSON in sessionStorage `cockpit_anaconda`). */
      74          150 : export function in_anaconda_mode(): boolean {
      75          150 :     try {
      76          150 :         const raw = window.sessionStorage.getItem("cockpit_anaconda");
      77          143 :         return !!JSON.parse(raw ?? "null");
      78           24 :     } catch {
      79           24 :         return false;
      80           24 :     }
      81          150 : }
      82              : 
      83          110 : export function get_manifest_config_matchlist(
      84          110 :     manifest_name: string, config_name: string, default_value: cockpit.JsonValue, matches: (string | undefined)[]
      85          110 : ): cockpit.JsonValue {
      86          110 :     const config = cockpit.manifests[manifest_name]?.config;
      87              : 
      88          110 :     if (is_json_dict(config)) {
      89          110 :         const val = config[config_name];
      90          110 :         if (is_json_dict(val))
      91            8 :             return try_fields(val, matches, default_value);
      92              :         else
      93            4 :             return val !== undefined ? val : default_value;
      94            4 :     } else {
      95            4 :         return default_value;
      96            4 :     }
      97          110 : }