Inital build

frontend/node_modules/tus-js-client/lib/node/fileSignature.js

@@ -0,0 +1,39 @@
+import { createHash } from 'crypto'
+import * as fs from 'fs'
+import * as path from 'path'
+
+/**
+ * Generate a fingerprint for a file which will be used the store the endpoint
+ *
+ * @param {File} file
+ * @param {Object} options
+ */
+export default function fingerprint(file, options) {
+  if (Buffer.isBuffer(file)) {
+    // create MD5 hash for buffer type
+    const blockSize = 64 * 1024 // 64kb
+    const content = file.slice(0, Math.min(blockSize, file.length))
+    const hash = createHash('md5').update(content).digest('hex')
+    const ret = ['node-buffer', hash, file.length, options.endpoint].join('-')
+    return Promise.resolve(ret)
+  }
+
+  if (file instanceof fs.ReadStream && file.path != null) {
+    return new Promise((resolve, reject) => {
+      const name = path.resolve(file.path)
+      fs.stat(file.path, (err, info) => {
+        if (err) {
+          reject(err)
+          return
+        }
+
+        const ret = ['node-file', name, info.size, info.mtime.getTime(), options.endpoint].join('-')
+
+        resolve(ret)
+      })
+    })
+  }
+
+  // fingerprint cannot be computed for file input type
+  return Promise.resolve(null)
+}