use hash-wasm to calculate checksum (#103)

incognitojam · web-flow · commit 2c7cfacbff19 · 2025-02-19T15:23:23.000Z
diff --git a/bun.lockb b/bun.lockb
diff --git a/package.json b/package.json
@@ -18,7 +18,7 @@
     "@fontsource-variable/inter": "^5.0.18",
     "@fontsource-variable/jetbrains-mono": "^5.0.21",
     "comlink": "^4.4.1",
-    "jssha": "^3.3.1",
+    "hash-wasm": "^4.12.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
     "xz-decompress": "^0.2.1"
diff --git a/src/workers/image.worker.js b/src/workers/image.worker.js
@@ -1,6 +1,6 @@
 import * as Comlink from 'comlink'
 
-import jsSHA from 'jssha'
+import { createSHA256 } from 'hash-wasm'
 import { XzReadableStream } from 'xz-decompress'
 
 /**
@@ -133,7 +133,7 @@ const imageWorker = {
       }
     }
 
-    const shaObj = new jsSHA('SHA-256', 'UINT8ARRAY')
+    const shaObj = await createSHA256()
     let complete
     try {
       let stream = archiveFile.stream()
@@ -166,7 +166,7 @@ const imageWorker = {
       throw `Error closing file handle: ${e}`
     }
 
-    const checksum = shaObj.getHash('HEX')
+    const checksum = shaObj.digest()
     if (checksum !== expectedChecksum) {
       throw `Checksum mismatch: got ${checksum}, expected ${expectedChecksum}`
     }

Original file line number	Diff line number	Diff line change
`@@ -1,6 +1,6 @@`
`1`	`1`	`import * as Comlink from 'comlink'`
`2`	`2`
`3`		`-import jsSHA from 'jssha'`
	`3`	`+import { createSHA256 } from 'hash-wasm'`
`4`	`4`	`import { XzReadableStream } from 'xz-decompress'`
`5`	`5`
`6`	`6`	`/**`
`@@ -133,7 +133,7 @@ const imageWorker = {`
`133`	`133`	`}`
`134`	`134`	`}`
`135`	`135`
`136`		`- const shaObj = new jsSHA('SHA-256', 'UINT8ARRAY')`
	`136`	`+ const shaObj = await createSHA256()`
`137`	`137`	`let complete`
`138`	`138`	`try {`
`139`	`139`	`let stream = archiveFile.stream()`
`@@ -166,7 +166,7 @@ const imageWorker = {`
`166`	`166`	throw `Error closing file handle: ${e}`
`167`	`167`	`}`
`168`	`168`
`169`		`- const checksum = shaObj.getHash('HEX')`
	`169`	`+ const checksum = shaObj.digest()`
`170`	`170`	`if (checksum !== expectedChecksum) {`
`171`	`171`	throw `Checksum mismatch: got ${checksum}, expected ${expectedChecksum}`
`172`	`172`	`}`