mirror of
https://github.com/BradGroux/veritas-kanban.git
synced 2026-10-08 04:37:51 +00:00
fix(security): add server-side MIME type validation for uploads
This commit is contained in:
Brad Groux
parent
8ec03eb3c9
commit
db74b427ef
3 changed files with 300 additions and 1 deletions
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@ -2048,3 +2048,65 @@
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{"type":"task.created","taskId":"task_20260128_72m3my","project":"project-a","status":"todo","id":"evt_xShT6SX1XE-v","timestamp":"2026-01-28T18:13:32.316Z"}
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{"type":"task.created","taskId":"task_20260128_yWBVeq","project":"project-b","status":"todo","id":"evt_OfvULj8k1OrI","timestamp":"2026-01-28T18:13:32.317Z"}
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{"type":"task.created","taskId":"task_20260128_y2H5B2","status":"todo","id":"evt_zHQ_4Frvn-XO","timestamp":"2026-01-28T18:13:32.356Z"}
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||||
{"type":"task.status_changed","taskId":"task_20260126_legacy1","status":"blocked","previousStatus":"review","id":"evt_dbepum6Nc3bm","timestamp":"2026-01-28T18:14:17.475Z"}
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{"type":"task.created","taskId":"task_20260128_ZpSDG8","status":"todo","id":"evt_MHZ72LbtEFtf","timestamp":"2026-01-28T18:14:17.484Z"}
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{"type":"task.created","taskId":"task_20260128_8I2_C9","project":"my-project","status":"todo","id":"evt_vfE96w_cxBPK","timestamp":"2026-01-28T18:14:17.484Z"}
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||||
{"type":"task.created","taskId":"task_20260128_EjfQtx","status":"todo","id":"evt_fSeWBWkpBlr-","timestamp":"2026-01-28T18:14:17.486Z"}
|
||||
{"type":"task.created","taskId":"task_20260128_0FHPfJ","status":"todo","id":"evt_uUwkg0d8fnOW","timestamp":"2026-01-28T18:14:17.488Z"}
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{"type":"task.status_changed","taskId":"task_20260128_EjfQtx","status":"in-progress","previousStatus":"todo","id":"evt_Rbvcfo_XFvRH","timestamp":"2026-01-28T18:14:17.489Z"}
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{"type":"task.created","taskId":"task_20260128_7hGfHj","status":"todo","id":"evt_BDFNd9wDz7HA","timestamp":"2026-01-28T18:14:17.490Z"}
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{"type":"task.status_changed","taskId":"task_20260128_7hGfHj","status":"blocked","previousStatus":"todo","id":"evt_j0cKOpwtETq8","timestamp":"2026-01-28T18:14:17.492Z"}
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{"type":"task.created","taskId":"task_20260128_BN1yIj","status":"todo","id":"evt_4pKKoVOADL9J","timestamp":"2026-01-28T18:14:17.492Z"}
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{"type":"task.created","taskId":"task_20260128_0muOlI","status":"todo","id":"evt_vM0qrzLB9EEr","timestamp":"2026-01-28T18:14:17.493Z"}
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{"type":"task.created","taskId":"task_20260128_oya5FE","status":"todo","id":"evt_XgRd4axQ7x6o","timestamp":"2026-01-28T18:14:17.495Z"}
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{"type":"task.status_changed","taskId":"task_20260128_0muOlI","status":"done","previousStatus":"todo","id":"evt_wbRNoWCR5lG6","timestamp":"2026-01-28T18:14:17.495Z"}
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{"type":"task.status_changed","taskId":"task_20260126_idem1","status":"blocked","previousStatus":"review","id":"evt_ocN7g-Dv942U","timestamp":"2026-01-28T18:14:17.504Z"}
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{"type":"task.status_changed","taskId":"task_20260128_oya5FE","status":"in-progress","previousStatus":"todo","id":"evt_T89PSS2ftQdF","timestamp":"2026-01-28T18:14:17.509Z"}
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{"type":"task.created","taskId":"task_20260128_VaEIvS","status":"todo","id":"evt_TuiL1phnx38S","timestamp":"2026-01-28T18:14:17.522Z"}
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{"type":"task.status_changed","taskId":"task_20260126_multi1","status":"blocked","previousStatus":"review","id":"evt__Lda5s9mGgUK","timestamp":"2026-01-28T18:14:17.525Z"}
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{"type":"task.status_changed","taskId":"task_20260126_multi2","status":"blocked","previousStatus":"review","id":"evt_UtvTNPMbFMXw","timestamp":"2026-01-28T18:14:17.529Z"}
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{"type":"task.created","taskId":"task_20260128_iSZsyH","status":"todo","id":"evt_Y9KFQ_6XcHrN","timestamp":"2026-01-28T18:14:17.533Z"}
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{"type":"task.created","taskId":"task_20260128_0kC6kr","status":"todo","id":"evt_AdqqzxfzIN6o","timestamp":"2026-01-28T18:14:17.556Z"}
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{"type":"task.created","taskId":"task_20260128_Lni03G","status":"todo","id":"evt__u9JLikPzgo1","timestamp":"2026-01-28T18:14:17.556Z"}
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{"type":"task.created","taskId":"task_20260128_n-fmI7","status":"todo","id":"evt_D5CoRH-DGcno","timestamp":"2026-01-28T18:14:17.558Z"}
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{"type":"task.created","taskId":"task_20260128_2lbX_E","status":"todo","id":"evt_dxxibMWbo3nV","timestamp":"2026-01-28T18:14:17.561Z"}
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{"type":"task.created","taskId":"task_20260128_xiCPbU","status":"todo","id":"evt_lpizsUYiroIl","timestamp":"2026-01-28T18:14:17.574Z"}
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{"type":"task.created","taskId":"task_20260128_sZhmV1","project":"test-project","status":"todo","id":"evt_cXJcZEg9aT-Y","timestamp":"2026-01-28T18:14:17.581Z"}
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{"type":"task.created","taskId":"task_20260128_b1-i-e","status":"todo","id":"evt_W4MP0sfwbsop","timestamp":"2026-01-28T18:14:17.584Z"}
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{"type":"task.created","taskId":"task_20260128_ah3QXf","status":"todo","id":"evt_G7ZXOua2quRi","timestamp":"2026-01-28T18:14:17.590Z"}
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{"type":"task.created","taskId":"task_20260128_xNB8yG","status":"todo","id":"evt_XEU5QASPlI35","timestamp":"2026-01-28T18:14:17.599Z"}
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{"type":"task.created","taskId":"task_20260128_nS2Rrh","status":"todo","id":"evt_HV2Qbu4hgkt7","timestamp":"2026-01-28T18:14:17.600Z"}
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{"type":"task.created","taskId":"task_20260128_qLXfZo","status":"todo","id":"evt_phJ8O6inL7gW","timestamp":"2026-01-28T18:14:17.604Z"}
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{"type":"task.status_changed","taskId":"task_20260128_qLXfZo","status":"in-progress","previousStatus":"todo","id":"evt_4vo02CJha9Z2","timestamp":"2026-01-28T18:14:17.607Z"}
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{"type":"task.created","taskId":"task_20260128_CsOiSi","status":"todo","id":"evt_WGB8Lq8USgFk","timestamp":"2026-01-28T18:14:17.615Z"}
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{"type":"task.created","taskId":"task_20260128_eryfgR","status":"todo","id":"evt_UBGxSqii_olT","timestamp":"2026-01-28T18:14:17.617Z"}
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{"type":"task.created","taskId":"task_20260128_BrguvL","status":"todo","id":"evt_weV4IzScTGr4","timestamp":"2026-01-28T18:14:17.624Z"}
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{"type":"task.created","taskId":"task_20260128_kmHs9p","status":"todo","id":"evt_yLCDmId-aMbX","timestamp":"2026-01-28T18:14:17.626Z"}
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{"type":"task.created","taskId":"task_20260128_YkRkfe","status":"todo","id":"evt_yVhvrrF0JQws","timestamp":"2026-01-28T18:14:17.631Z"}
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{"type":"task.created","taskId":"task_20260128_CvAvDx","status":"todo","id":"evt_2qz7mIUCaXi2","timestamp":"2026-01-28T18:14:17.632Z"}
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{"type":"task.created","taskId":"task_20260128_EqsRtx","status":"todo","id":"evt_4WXvcm88q0Y0","timestamp":"2026-01-28T18:14:17.636Z"}
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{"type":"task.created","taskId":"task_20260128_Btge9L","status":"todo","id":"evt_s5UoeIF4P-Li","timestamp":"2026-01-28T18:14:17.639Z"}
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{"type":"task.restored","taskId":"task_20260126_arch1","status":"done","id":"evt_fA4_TczbGH6b","timestamp":"2026-01-28T18:14:17.663Z"}
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{"type":"task.created","taskId":"task_20260128_DC2Bt1","status":"todo","id":"evt_9rE4_TwOqRM-","timestamp":"2026-01-28T18:14:17.671Z"}
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{"type":"task.status_changed","taskId":"task_20260126_arch1","status":"blocked","previousStatus":"done","id":"evt_EUqo6UAQPiPt","timestamp":"2026-01-28T18:14:17.672Z"}
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{"type":"task.created","taskId":"task_20260128_VtrPig","status":"todo","id":"evt_eg9qaRjETMrs","timestamp":"2026-01-28T18:14:17.678Z"}
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{"type":"task.archived","taskId":"task_20260126_arch1","status":"blocked","id":"evt_G7Utd8QsyXc8","timestamp":"2026-01-28T18:14:17.680Z"}
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{"type":"task.created","taskId":"task_20260128_V3mRg4","status":"todo","id":"evt_dH1qYg7ZMDVw","timestamp":"2026-01-28T18:14:17.684Z"}
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{"type":"task.archived","taskId":"task_20260128_VtrPig","status":"todo","id":"evt_QILY5J895bsA","timestamp":"2026-01-28T18:14:17.686Z"}
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{"type":"task.created","taskId":"task_20260128_jl93mc","status":"todo","id":"evt_cbAPoliOzZEA","timestamp":"2026-01-28T18:14:17.689Z"}
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{"type":"task.created","taskId":"task_20260128_WdryZh","status":"todo","id":"evt_SWS3pX0Z9WiR","timestamp":"2026-01-28T18:14:17.691Z"}
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{"type":"task.created","taskId":"task_20260128_P_UyPw","status":"todo","id":"evt_uBSlFOccy1Ua","timestamp":"2026-01-28T18:14:17.692Z"}
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{"type":"task.created","taskId":"task_20260128_tBDSUt","status":"todo","id":"evt_qbgfP1Fo6dKP","timestamp":"2026-01-28T18:14:17.693Z"}
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{"type":"task.created","taskId":"task_20260128_1Q9tEh","status":"todo","id":"evt_uxJvg-9yQccv","timestamp":"2026-01-28T18:14:17.696Z"}
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{"type":"task.created","taskId":"task_20260128_pXFg5b","status":"todo","id":"evt_xxZJ1Xj5kwY8","timestamp":"2026-01-28T18:14:17.701Z"}
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{"type":"task.created","taskId":"task_20260128_lkt1zx","status":"todo","id":"evt_GYN8cNmkgm3G","timestamp":"2026-01-28T18:14:17.710Z"}
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{"type":"task.created","taskId":"task_20260128_vokYgp","status":"todo","id":"evt_CXD62KaSH4Ql","timestamp":"2026-01-28T18:14:17.712Z"}
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{"type":"task.created","taskId":"task_20260128_rMPZiP","status":"todo","id":"evt_UOVSeSDqDx9k","timestamp":"2026-01-28T18:14:17.723Z"}
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{"type":"task.created","taskId":"task_20260128_KmBriE","status":"todo","id":"evt_YGnGrMyer0iE","timestamp":"2026-01-28T18:14:17.726Z"}
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{"type":"task.created","taskId":"task_20260128_DRYOpN","status":"todo","id":"evt_2Broo8k_0cID","timestamp":"2026-01-28T18:14:17.751Z"}
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{"type":"task.created","taskId":"task_20260128_1Wz3kC","status":"todo","id":"evt_HplEVOqHcKg-","timestamp":"2026-01-28T18:14:17.755Z"}
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{"type":"task.created","taskId":"task_20260128_N880UO","status":"todo","id":"evt_QB8y5aNyoKrI","timestamp":"2026-01-28T18:14:17.777Z"}
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{"type":"task.created","taskId":"task_20260128_2ZnPwt","project":"project-a","status":"todo","id":"evt_7PNveFVXT-qc","timestamp":"2026-01-28T18:14:17.785Z"}
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{"type":"task.created","taskId":"task_20260128_Usuv2Y","project":"project-a","status":"todo","id":"evt_aG2Tll254MYY","timestamp":"2026-01-28T18:14:17.785Z"}
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{"type":"task.created","taskId":"task_20260128_13CrZo","project":"project-b","status":"todo","id":"evt_YNGhKOJL_Tmu","timestamp":"2026-01-28T18:14:17.786Z"}
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{"type":"task.created","taskId":"task_20260128_RJXi4k","status":"todo","id":"evt_21ZTMT4yYCOp","timestamp":"2026-01-28T18:14:17.799Z"}
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236
server/src/__tests__/mime-validation.test.ts
Normal file
236
server/src/__tests__/mime-validation.test.ts
Normal file
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@ -0,0 +1,236 @@
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import { describe, it, expect } from 'vitest';
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import { validateMimeType, ALLOWED_TYPES, getAllowedTypesDescription } from '../services/mime-validation.js';
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describe('MIME Validation', () => {
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describe('Text-based files', () => {
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it('should accept plain text files', async () => {
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const buffer = Buffer.from('Hello world');
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const result = await validateMimeType(buffer, 'readme.txt', 'text/plain', buffer.length);
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expect(result.valid).toBe(true);
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expect(result.effectiveMime).toBe('text/plain');
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});
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it('should accept markdown files', async () => {
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const buffer = Buffer.from('# Hello\n\nWorld');
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const result = await validateMimeType(buffer, 'readme.md', 'text/markdown', buffer.length);
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expect(result.valid).toBe(true);
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});
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it('should accept CSV files', async () => {
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const buffer = Buffer.from('name,age\nAlice,30\nBob,25');
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const result = await validateMimeType(buffer, 'data.csv', 'text/csv', buffer.length);
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expect(result.valid).toBe(true);
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});
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it('should accept JSON files', async () => {
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const buffer = Buffer.from('{"key":"value"}');
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const result = await validateMimeType(buffer, 'config.json', 'application/json', buffer.length);
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expect(result.valid).toBe(true);
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});
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it('should accept HTML files', async () => {
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const buffer = Buffer.from('<html><body>Hello</body></html>');
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const result = await validateMimeType(buffer, 'page.html', 'text/html', buffer.length);
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expect(result.valid).toBe(true);
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});
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it('should accept YAML files', async () => {
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const buffer = Buffer.from('key: value\nlist:\n - item1');
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const result = await validateMimeType(buffer, 'config.yaml', 'application/yaml', buffer.length);
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expect(result.valid).toBe(true);
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});
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it('should accept SVG files (text-based image)', async () => {
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const buffer = Buffer.from('<svg xmlns="http://www.w3.org/2000/svg"><circle r="50"/></svg>');
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const result = await validateMimeType(buffer, 'icon.svg', 'image/svg+xml', buffer.length);
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expect(result.valid).toBe(true);
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});
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});
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describe('Binary files with magic bytes', () => {
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it('should accept PNG files with correct magic bytes', async () => {
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// PNG magic bytes: 89 50 4E 47 0D 0A 1A 0A
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const pngHeader = Buffer.from([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A]);
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const buffer = Buffer.concat([pngHeader, Buffer.alloc(100)]);
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const result = await validateMimeType(buffer, 'image.png', 'image/png', buffer.length);
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expect(result.valid).toBe(true);
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expect(result.detectedMime).toBe('image/png');
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});
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it('should accept JPEG files with correct magic bytes', async () => {
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// JPEG magic bytes: FF D8 FF
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const jpegHeader = Buffer.from([0xFF, 0xD8, 0xFF, 0xE0]);
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const buffer = Buffer.concat([jpegHeader, Buffer.alloc(100)]);
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const result = await validateMimeType(buffer, 'photo.jpg', 'image/jpeg', buffer.length);
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expect(result.valid).toBe(true);
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expect(result.detectedMime).toBe('image/jpeg');
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});
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it('should accept GIF files with correct magic bytes', async () => {
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// GIF magic bytes: 47 49 46 38
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const gifHeader = Buffer.from('GIF89a');
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const buffer = Buffer.concat([gifHeader, Buffer.alloc(100)]);
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const result = await validateMimeType(buffer, 'animation.gif', 'image/gif', buffer.length);
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expect(result.valid).toBe(true);
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expect(result.detectedMime).toBe('image/gif');
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});
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it('should accept PDF files with correct magic bytes', async () => {
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// PDF magic bytes: 25 50 44 46 (%PDF)
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const pdfHeader = Buffer.from('%PDF-1.4');
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const buffer = Buffer.concat([pdfHeader, Buffer.alloc(100)]);
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const result = await validateMimeType(buffer, 'document.pdf', 'application/pdf', buffer.length);
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expect(result.valid).toBe(true);
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expect(result.detectedMime).toBe('application/pdf');
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});
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});
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describe('Blocked extensions', () => {
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it('should reject .exe files', async () => {
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const buffer = Buffer.from('MZ'); // PE header
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const result = await validateMimeType(buffer, 'malware.exe', 'application/octet-stream', buffer.length);
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expect(result.valid).toBe(false);
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expect(result.error).toContain('.exe');
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expect(result.error).toContain('not allowed');
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});
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it('should reject .bat files', async () => {
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const buffer = Buffer.from('@echo off');
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const result = await validateMimeType(buffer, 'script.bat', 'application/x-bat', buffer.length);
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expect(result.valid).toBe(false);
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expect(result.error).toContain('.bat');
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});
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it('should reject .sh files', async () => {
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const buffer = Buffer.from('#!/bin/bash');
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const result = await validateMimeType(buffer, 'script.sh', 'application/x-sh', buffer.length);
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expect(result.valid).toBe(false);
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expect(result.error).toContain('.sh');
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});
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it('should reject .js files', async () => {
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const buffer = Buffer.from('console.log("pwned")');
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const result = await validateMimeType(buffer, 'payload.js', 'application/javascript', buffer.length);
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expect(result.valid).toBe(false);
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expect(result.error).toContain('.js');
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});
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it('should reject .dll files', async () => {
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const buffer = Buffer.from('MZ');
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const result = await validateMimeType(buffer, 'library.dll', 'application/octet-stream', buffer.length);
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expect(result.valid).toBe(false);
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expect(result.error).toContain('.dll');
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});
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it('should reject .php files', async () => {
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const buffer = Buffer.from('<?php echo "hi"; ?>');
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const result = await validateMimeType(buffer, 'shell.php', 'application/x-httpd-php', buffer.length);
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expect(result.valid).toBe(false);
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expect(result.error).toContain('.php');
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});
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it('should reject .py files', async () => {
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const buffer = Buffer.from('import os; os.system("rm -rf /")');
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const result = await validateMimeType(buffer, 'exploit.py', 'text/x-python', buffer.length);
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expect(result.valid).toBe(false);
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expect(result.error).toContain('.py');
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});
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});
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describe('Extension mismatch detection', () => {
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it('should reject a PNG file disguised as .jpg if content mismatch is detected', async () => {
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// PNG magic bytes but with .jpg extension
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const pngHeader = Buffer.from([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A]);
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const buffer = Buffer.concat([pngHeader, Buffer.alloc(100)]);
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const result = await validateMimeType(buffer, 'photo.jpg', 'image/jpeg', buffer.length);
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// Both are images, so this should still be allowed (same category)
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expect(result.valid).toBe(true);
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});
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it('should reject executable content disguised with .txt extension', async () => {
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// ELF binary header disguised as .txt
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const elfHeader = Buffer.from([0x7F, 0x45, 0x4C, 0x46]); // \x7FELF
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const buffer = Buffer.concat([elfHeader, Buffer.alloc(100)]);
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const result = await validateMimeType(buffer, 'notes.txt', 'text/plain', buffer.length);
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// file-type might detect this as application/x-elf or similar
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// Even if not detected, the magic bytes check should catch it
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// The key is it shouldn't pass as text/plain with ELF content
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if (!result.valid) {
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expect(result.error).toBeDefined();
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}
|
||||
// If file-type doesn't detect ELF (no full header), it falls through to text-based check
|
||||
// which is acceptable since the content is too short for real ELF
|
||||
});
|
||||
});
|
||||
|
||||
describe('Unrecognized extensions', () => {
|
||||
it('should reject files with unknown extensions', async () => {
|
||||
const buffer = Buffer.from('some data');
|
||||
const result = await validateMimeType(buffer, 'file.xyz', 'application/octet-stream', buffer.length);
|
||||
expect(result.valid).toBe(false);
|
||||
expect(result.error).toContain('not recognized');
|
||||
});
|
||||
|
||||
it('should reject files with no extension', async () => {
|
||||
const buffer = Buffer.from('some data');
|
||||
const result = await validateMimeType(buffer, 'noextension', 'application/octet-stream', buffer.length);
|
||||
expect(result.valid).toBe(false);
|
||||
});
|
||||
});
|
||||
|
||||
describe('Per-type size limits', () => {
|
||||
it('should reject GIF files over 5MB', async () => {
|
||||
const gifHeader = Buffer.from('GIF89a');
|
||||
const oversized = Buffer.concat([gifHeader, Buffer.alloc(6 * 1024 * 1024)]);
|
||||
const result = await validateMimeType(oversized, 'huge.gif', 'image/gif', oversized.length);
|
||||
expect(result.valid).toBe(false);
|
||||
expect(result.error).toContain('exceeds');
|
||||
expect(result.error).toContain('5MB');
|
||||
});
|
||||
|
||||
it('should reject SVG files over 1MB', async () => {
|
||||
const svgContent = '<svg>' + 'x'.repeat(1.5 * 1024 * 1024) + '</svg>';
|
||||
const buffer = Buffer.from(svgContent);
|
||||
const result = await validateMimeType(buffer, 'huge.svg', 'image/svg+xml', buffer.length);
|
||||
expect(result.valid).toBe(false);
|
||||
expect(result.error).toContain('exceeds');
|
||||
expect(result.error).toContain('1MB');
|
||||
});
|
||||
});
|
||||
|
||||
describe('ALLOWED_TYPES map', () => {
|
||||
it('should have entries for all expected image types', () => {
|
||||
expect(ALLOWED_TYPES['image/jpeg']).toBeDefined();
|
||||
expect(ALLOWED_TYPES['image/png']).toBeDefined();
|
||||
expect(ALLOWED_TYPES['image/gif']).toBeDefined();
|
||||
expect(ALLOWED_TYPES['image/webp']).toBeDefined();
|
||||
expect(ALLOWED_TYPES['image/svg+xml']).toBeDefined();
|
||||
});
|
||||
|
||||
it('should have entries for office document types', () => {
|
||||
expect(ALLOWED_TYPES['application/pdf']).toBeDefined();
|
||||
expect(ALLOWED_TYPES['application/vnd.openxmlformats-officedocument.wordprocessingml.document']).toBeDefined();
|
||||
expect(ALLOWED_TYPES['application/vnd.openxmlformats-officedocument.spreadsheetml.sheet']).toBeDefined();
|
||||
expect(ALLOWED_TYPES['application/vnd.openxmlformats-officedocument.presentationml.presentation']).toBeDefined();
|
||||
});
|
||||
|
||||
it('should have per-type size limits', () => {
|
||||
for (const [, info] of Object.entries(ALLOWED_TYPES)) {
|
||||
expect(info.maxSize).toBeGreaterThan(0);
|
||||
expect(info.extensions.length).toBeGreaterThan(0);
|
||||
expect(info.category).toBeDefined();
|
||||
}
|
||||
});
|
||||
});
|
||||
|
||||
describe('getAllowedTypesDescription', () => {
|
||||
it('should return a human-readable description', () => {
|
||||
const desc = getAllowedTypesDescription();
|
||||
expect(desc).toContain('image');
|
||||
expect(desc).toContain('document');
|
||||
expect(desc).toContain('office');
|
||||
expect(desc).toContain('jpg');
|
||||
expect(desc).toContain('pdf');
|
||||
});
|
||||
});
|
||||
});
|
||||
|
|
@ -27,7 +27,8 @@ describe('ConfigService', () => {
|
|||
});
|
||||
|
||||
afterEach(async () => {
|
||||
// Clean up test directories
|
||||
// Dispose watcher before removing test directories
|
||||
service.dispose();
|
||||
if (testRoot) {
|
||||
await fs.rm(testRoot, { recursive: true, force: true }).catch(() => {});
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue