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Add conservative upload content-type handling that appends charset=utf-8 only when text uploads validate as UTF-8, while preserving existing charsets and non-UTF-8 text metadata. Fixes rustfs/rustfs#3095
55 lines
2.2 KiB
JavaScript
55 lines
2.2 KiB
JavaScript
import test from "node:test"
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import assert from "node:assert/strict"
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import { getUploadContentType } from "../../lib/upload-content-type.js"
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function uploadBlob(parts, name, type = "") {
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const blob = new Blob(parts, { type })
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Object.defineProperty(blob, "name", { value: name })
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return blob
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}
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test("getUploadContentType adds utf-8 charset for valid UTF-8 text uploads", async () => {
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const file = uploadBlob(["中文内容"], "notes.txt", "text/plain")
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assert.equal(await getUploadContentType(file, "notes.txt"), "text/plain; charset=utf-8")
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})
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test("getUploadContentType does not mark non-UTF-8 text as UTF-8", async () => {
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const gbkChineseBytes = new Uint8Array([0xd6, 0xd0, 0xce, 0xc4])
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const file = uploadBlob([gbkChineseBytes], "gbk.txt", "text/plain")
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assert.equal(await getUploadContentType(file, "gbk.txt"), "text/plain")
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})
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test("getUploadContentType validates the full file before adding UTF-8 charset", async () => {
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const asciiPrefix = "a".repeat(70 * 1024)
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const invalidUtf8Suffix = new Uint8Array([0xd6, 0xd0])
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const file = uploadBlob([asciiPrefix, invalidUtf8Suffix], "mixed.txt", "text/plain")
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assert.equal(await getUploadContentType(file, "mixed.txt"), "text/plain")
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})
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test("getUploadContentType preserves an existing charset", async () => {
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const file = uploadBlob(["中文内容"], "gbk.txt", "text/plain; charset=gbk")
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assert.equal(await getUploadContentType(file, "gbk.txt"), "text/plain; charset=gbk")
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})
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test("getUploadContentType keeps binary content types unchanged", async () => {
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const file = uploadBlob([new Uint8Array([0x89, 0x50, 0x4e, 0x47])], "image.png", "image/png")
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assert.equal(await getUploadContentType(file, "image.png"), "image/png")
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})
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test("getUploadContentType infers markdown MIME type and charset when browser type is empty", async () => {
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const file = uploadBlob(["# 标题"], "readme.md")
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assert.equal(await getUploadContentType(file, "readme.md"), "text/markdown; charset=utf-8")
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})
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test("getUploadContentType falls back to octet-stream for unknown empty MIME types", async () => {
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const file = uploadBlob(["content"], "archive.unknownext")
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assert.equal(await getUploadContentType(file, "archive.unknownext"), "application/octet-stream")
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})
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