diff --git a/backend/src/handlers/upload.rs b/backend/src/handlers/upload.rs index 2871805..841e6f9 100644 --- a/backend/src/handlers/upload.rs +++ b/backend/src/handlers/upload.rs @@ -331,6 +331,13 @@ pub struct QuotaEstimate { pub tolerance: f64, } +/// Pure per-user quota formula: `floor((free_disk * tolerance) / max(active, 1))`. +/// Extracted from `compute_storage_quota` so it's unit-testable without a DB or disk. +fn quota_limit_bytes(free_disk: i64, tolerance: f64, active_uploaders: i64) -> i64 { + let active = active_uploaders.max(1); + ((free_disk as f64 * tolerance) / active as f64).floor() as i64 +} + /// Computes the per-user storage quota using /// `floor((free_disk * tolerance) / max(active_uploaders, 1))`. Returns `limit_bytes = /// None` whenever the storage quota is currently disabled — callers should skip the @@ -362,7 +369,7 @@ pub async fn compute_storage_quota(state: &AppState) -> QuotaEstimate { }) as i64; let limit_bytes = if quota_on && storage_quota_on { - Some(((free_disk as f64 * tolerance) / active as f64).floor() as i64) + Some(quota_limit_bytes(free_disk, tolerance, active)) } else { None }; @@ -425,3 +432,37 @@ pub async fn get_original( .body(Body::from_stream(stream)) .map_err(|e| AppError::Internal(e.into())) } + +#[cfg(test)] +mod tests { + use super::quota_limit_bytes; + + #[test] + fn divides_free_space_by_uploaders_with_tolerance() { + // 1000 * 0.75 / 3 = 250 + assert_eq!(quota_limit_bytes(1000, 0.75, 3), 250); + } + + #[test] + fn floors_fractional_results() { + // 1000 * 0.75 / 7 = 107.14… → 107 + assert_eq!(quota_limit_bytes(1000, 0.75, 7), 107); + } + + #[test] + fn active_uploaders_below_one_is_clamped_to_one() { + // Guards against divide-by-zero when no one has uploaded yet. + assert_eq!(quota_limit_bytes(1000, 1.0, 0), 1000); + assert_eq!(quota_limit_bytes(1000, 1.0, -5), 1000); + } + + #[test] + fn zero_free_disk_yields_zero() { + assert_eq!(quota_limit_bytes(0, 0.75, 3), 0); + } + + #[test] + fn full_tolerance_is_identity_for_a_single_uploader() { + assert_eq!(quota_limit_bytes(500, 1.0, 1), 500); + } +} diff --git a/frontend/package-lock.json b/frontend/package-lock.json index 372248b..625af33 100644 --- a/frontend/package-lock.json +++ b/frontend/package-lock.json @@ -19,6 +19,7 @@ "@sveltejs/vite-plugin-svelte": "^6.2.4", "@tailwindcss/vite": "^4.2.2", "@types/qrcode": "^1.5.6", + "jsdom": "^29.1.1", "svelte": "^5.54.0", "svelte-check": "^4.4.2", "tailwindcss": "^4.2.2", @@ -27,6 +28,210 @@ "vitest": "^4.1.9" } }, + "node_modules/@asamuzakjp/css-color": { + "version": "5.1.11", + "resolved": "https://registry.npmjs.org/@asamuzakjp/css-color/-/css-color-5.1.11.tgz", + "integrity": 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"https://registry.npmjs.org/xmlchars/-/xmlchars-2.2.0.tgz", + "integrity": "sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw==", + "dev": true, + "license": "MIT" + }, "node_modules/y18n": { "version": "4.0.3", "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.3.tgz", diff --git a/frontend/package.json b/frontend/package.json index f93dec0..d5426f7 100644 --- a/frontend/package.json +++ b/frontend/package.json @@ -20,6 +20,7 @@ "@sveltejs/vite-plugin-svelte": "^6.2.4", "@tailwindcss/vite": "^4.2.2", "@types/qrcode": "^1.5.6", + "jsdom": "^29.1.1", "svelte": "^5.54.0", "svelte-check": "^4.4.2", "tailwindcss": "^4.2.2", diff --git a/frontend/src/lib/auth.test.ts b/frontend/src/lib/auth.test.ts new file mode 100644 index 0000000..febef54 --- /dev/null +++ b/frontend/src/lib/auth.test.ts @@ -0,0 +1,68 @@ +// @vitest-environment jsdom +import { describe, it, expect, beforeEach, vi } from 'vitest'; + +// auth.ts guards every localStorage access behind `browser`; force it true so the +// jsdom localStorage is actually used (the shared mock stubs it to false). +vi.mock('$app/environment', () => ({ browser: true, dev: false, building: false, version: 'test' })); + +import { setAuth, getToken, getPin, getExpiry, getRole, clearAuth, clearPin } from './auth'; + +/** Build a JWT-shaped string (header.payload.sig) with the given claims. */ +function makeJwt(claims: object): string { + const seg = (o: object) => btoa(JSON.stringify(o)); + return `${seg({ alg: 'HS256', typ: 'JWT' })}.${seg(claims)}.sig`; +} + +beforeEach(() => localStorage.clear()); + +describe('auth — token storage', () => { + it('setAuth then getToken/getPin round-trips', () => { + setAuth('a.b.c', '1234', 'uid-1', 'Alice'); + expect(getToken()).toBe('a.b.c'); + expect(getPin()).toBe('1234'); + }); + + it('setAuth without a PIN leaves the PIN unset', () => { + setAuth('a.b.c', null, 'uid-1'); + expect(getToken()).toBe('a.b.c'); + expect(getPin()).toBeNull(); + }); + + it('clearAuth removes the token but KEEPS the PIN (needed for recovery)', () => { + setAuth('a.b.c', '1234', 'uid'); + clearAuth(); + expect(getToken()).toBeNull(); + expect(getPin()).toBe('1234'); + }); + + it('clearPin removes the cached PIN', () => { + setAuth('a.b.c', '1234', 'uid'); + clearPin(); + expect(getPin()).toBeNull(); + }); +}); + +describe('auth — JWT claim decode', () => { + it('getExpiry decodes the exp claim (seconds → ms Date)', () => { + const exp = 2_000_000_000; // far-future unix seconds + setAuth(makeJwt({ exp }), null, 'u'); + expect(getExpiry()?.getTime()).toBe(exp * 1000); + }); + + it('getExpiry is null with no token, no exp claim, or a malformed token', () => { + expect(getExpiry()).toBeNull(); // no token + setAuth(makeJwt({ role: 'guest' }), null, 'u'); // token without exp + expect(getExpiry()).toBeNull(); + localStorage.setItem('eventsnap_jwt', 'not-a-jwt'); // unparseable + expect(getExpiry()).toBeNull(); + }); + + it('getRole extracts the role claim; null when absent or malformed', () => { + setAuth(makeJwt({ role: 'host' }), null, 'u'); + expect(getRole()).toBe('host'); + setAuth(makeJwt({ exp: 1 }), null, 'u'); // no role claim + expect(getRole()).toBeNull(); + localStorage.setItem('eventsnap_jwt', 'x.y.z'); // unparseable payload + expect(getRole()).toBeNull(); + }); +});