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homarr/packages/definitions/src/permissions.ts

256 lines
10 KiB
TypeScript

import { objectEntries, objectKeys } from "@homarr/common";
/**
* Permissions for boards.
* view: Can view the board and its content. (e.g. see all items on the board, but not modify them)
* modify: Can modify the board, its content and visual settings. (e.g. move items, change the background)
* full: Can modify the board, its content, visual settings, access settings, delete, change the visibility and rename. (e.g. change the board name, delete the board, give access to other users)
*/
export const boardPermissions = ["view", "modify", "full"] as const;
export const boardPermissionsMap = {
view: "board-view-all",
modify: "board-modify-all",
full: "board-full-all",
} satisfies Record<BoardPermission, GroupPermissionKey>;
export type BoardPermission = (typeof boardPermissions)[number];
/**
* Permissions for integrations.
* use: Can select the integration for an item on the board. (e.g. select pi-hole for a widget)
* interact: Can interact with the integration. (e.g. enable / disable pi-hole)
* full: Can modify the integration. (e.g. change the pi-hole url, secrets and access settings)
*/
export const integrationPermissions = ["use", "interact", "full"] as const;
export const integrationPermissionsMap = {
use: "integration-use-all",
interact: "integration-interact-all",
full: "integration-full-all",
} satisfies Record<IntegrationPermission, GroupPermissionKey>;
export type IntegrationPermission = (typeof integrationPermissions)[number];
/**
* Global permissions that can be assigned to groups.
* The keys are generated through combining the key and all array items.
* For example "board-create" is a generated key
*/
export const groupPermissions = {
// Order is the same in the UI, inspired from order in navigation here
board: ["create", "view-all", "modify-all", "full-all"],
app: ["create", "use-all", "modify-all", "full-all"],
integration: ["create", "use-all", "interact-all", "full-all"],
"search-engine": ["create", "modify-all", "full-all"],
media: ["upload", "view-all", "full-all"],
other: ["view-logs"],
admin: true,
} as const;
/**
* In the following object is described how the permissions are related to each other.
* For example everybody with the permission "board-modify-all" also has the permission "board-view-all".
* Or admin has all permissions (board-full-all and integration-full-all which will resolve in an array of every permission).
*/
const groupPermissionParents = {
"board-modify-all": ["board-view-all"],
"board-full-all": ["board-modify-all", "board-create"],
"app-modify-all": ["app-create"],
"app-full-all": ["app-modify-all", "app-use-all"],
"integration-interact-all": ["integration-use-all"],
"integration-full-all": ["integration-interact-all", "integration-create"],
"search-engine-modify-all": ["search-engine-create"],
"search-engine-full-all": ["search-engine-modify-all"],
"media-full-all": ["media-upload", "media-view-all"],
admin: [
"board-full-all",
"app-full-all",
"integration-full-all",
"search-engine-full-all",
"media-full-all",
"other-view-logs",
],
} satisfies Partial<Record<GroupPermissionKey, GroupPermissionKey[]>>;
export const getPermissionsWithParents = (permissions: GroupPermissionKey[]): GroupPermissionKey[] => {
const res = permissions.map((permission) => {
return objectEntries(groupPermissionParents)
.filter(([_key, value]: [string, GroupPermissionKey[]]) => value.includes(permission))
.map(([key]) => getPermissionsWithParents([key]))
.flat();
});
return permissions.concat(res.flat());
};
const getPermissionsInner = (permissionSet: Set<GroupPermissionKey>, permissions: GroupPermissionKey[]) => {
permissions.forEach((permission) => {
const children = groupPermissionParents[permission as keyof typeof groupPermissionParents];
// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
if (children) {
getPermissionsInner(permissionSet, children);
}
permissionSet.add(permission);
});
};
export const getPermissionsWithChildren = (permissions: GroupPermissionKey[]) => {
const permissionSet = new Set<GroupPermissionKey>();
getPermissionsInner(permissionSet, permissions);
return Array.from(permissionSet);
};
type GroupPermissions = typeof groupPermissions;
export type GroupPermissionKey = {
[key in keyof GroupPermissions]: GroupPermissions[key] extends readonly string[]
? `${key}-${GroupPermissions[key][number]}`
: key;
}[keyof GroupPermissions];
export const groupPermissionKeys = objectKeys(groupPermissions).reduce((acc, key) => {
const item = groupPermissions[key];
if (typeof item !== "boolean") {
acc.push(...item.map((subKey) => `${key}-${subKey}` as GroupPermissionKey));
} else {
acc.push(key as GroupPermissionKey);
}
return acc;
}, [] as GroupPermissionKey[]);
/**
* Describes how each permission category is presented in the group permission matrix UI.
*
* `levels` is an ordered escalation of access: every level implies the one below it through
* {@link groupPermissionParents}, so picking level N grants everything up to N.
*
* `capabilities` are the keys that are NOT part of that ladder - "may add new resources", "may
* upload", "may put any app on a board". They can be granted on their own (e.g. "members may create
* their own boards but not see anyone else's") and some levels already imply them; use
* {@link isCapabilityImpliedByLevel} to detect that instead of hard-coding it.
*
* Only keys that genuinely imply each other may share a ladder. `app-modify-all` implies
* `app-create` but NOT `app-use-all` (only `app-full-all` does), so `app-use-all` is a capability -
* putting it in the ladder would make picking "Modify" silently grant use of every app.
*
* Together, `levels` and `capabilities` cover every key in {@link groupPermissionKeys}, so the
* matrix is a lossless representation of a group's permissions.
*/
export const permissionMatrix = {
board: { levels: ["board-view-all", "board-modify-all", "board-full-all"], capabilities: ["board-create"] },
app: { levels: ["app-modify-all", "app-full-all"], capabilities: ["app-use-all", "app-create"] },
integration: {
levels: ["integration-use-all", "integration-interact-all", "integration-full-all"],
capabilities: ["integration-create"],
},
"search-engine": {
levels: ["search-engine-modify-all", "search-engine-full-all"],
capabilities: ["search-engine-create"],
},
media: { levels: ["media-view-all", "media-full-all"], capabilities: ["media-upload"] },
other: { levels: ["other-view-logs"], capabilities: [] },
admin: { levels: ["admin"], capabilities: [] },
} as const satisfies Record<
string,
{ levels: readonly GroupPermissionKey[]; capabilities: readonly GroupPermissionKey[] }
>;
export type PermissionMatrixCategory = keyof typeof permissionMatrix;
export interface PermissionMatrixCategoryState {
/** 0 = no access, N = every key up to `permissionMatrix[category].levels[N - 1]` */
level: number;
/** The category's granted capability keys, including the ones the level already implies */
capabilities: readonly GroupPermissionKey[];
}
export type PermissionMatrixState = Record<PermissionMatrixCategory, PermissionMatrixCategoryState>;
/**
* Whether the given level already grants a capability through permission inheritance.
* For example board level 3 (`board-full-all`) implies `board-create`.
*/
export const isCapabilityImpliedByLevel = (
category: PermissionMatrixCategory,
capability: GroupPermissionKey,
level: number,
) => {
if (level <= 0) {
return false;
}
return getPermissionsWithChildren([...permissionMatrix[category].levels.slice(0, level)]).includes(capability);
};
export const permissionsToMatrixState = (permissions: GroupPermissionKey[]): PermissionMatrixState => {
const permissionSet = new Set(permissions);
return objectKeys(permissionMatrix).reduce((acc, category) => {
let level = 0;
permissionMatrix[category].levels.forEach((key, index) => {
if (permissionSet.has(key)) {
level = index + 1;
}
});
acc[category] = {
level,
capabilities: permissionMatrix[category].capabilities.filter(
(capability) => permissionSet.has(capability) || isCapabilityImpliedByLevel(category, capability, level),
),
};
return acc;
}, {} as PermissionMatrixState);
};
export const matrixStateToPermissions = (state: PermissionMatrixState): GroupPermissionKey[] => {
return objectKeys(permissionMatrix).reduce((acc, category) => {
const { level, capabilities } = state[category];
acc.push(...permissionMatrix[category].levels.slice(0, level));
// Skip capabilities the chosen level already implies, so the stored permissions stay minimal
// and a state -> permissions -> state round-trip is exact.
acc.push(...capabilities.filter((capability) => !isCapabilityImpliedByLevel(category, capability, level)));
return acc;
}, [] as GroupPermissionKey[]);
};
export interface ManagementSectionAccess {
/** May see and manage every resource of the section */
canManageAll: boolean;
/** May add new resources to the section */
canCreate: boolean;
/** May open the section at all */
canAccess: boolean;
}
/**
* A management section is reachable when the user can do at least one thing in it. Both rules live
* here so the navigation, the pages themselves and the management home statistics cannot drift
* apart - each of them consumes the same function.
*/
export const getAppManagementAccess = (permissions: readonly GroupPermissionKey[]): ManagementSectionAccess => {
const canManageAll = permissions.includes("app-modify-all");
const canCreate = permissions.includes("app-create");
return { canManageAll, canCreate, canAccess: canManageAll || canCreate };
};
/**
* `hasDelegatedFullAccess` is whether the user was granted full access to at least one specific
* integration; it has to be looked up per request, so the caller resolves it.
*/
export const getIntegrationManagementAccess = (
permissions: readonly GroupPermissionKey[],
hasDelegatedFullAccess: boolean,
): ManagementSectionAccess & { hasDelegatedFullAccess: boolean } => {
const canManageAll = permissions.includes("integration-full-all");
const canCreate = permissions.includes("integration-create");
return {
canManageAll,
canCreate,
hasDelegatedFullAccess,
canAccess: canManageAll || canCreate || hasDelegatedFullAccess,
};
};