feat: add file hasher

src/tools/file-hash/file-hash.vue

@@ -0,0 +1,149 @@
+<template>
+  <c-card title="Calculate file hash">
+    <n-upload v-model:file-list="fileList" :show-file-list="true" :on-before-upload="onUpload" list-type="image">
+      <n-upload-dragger>
+        <div mb-2>
+          <n-icon size="35" :depth="3" :component="Upload" />
+        </div>
+        <div op-60>
+          Click or drag a file to this area to upload
+        </div>
+      </n-upload-dragger>
+    </n-upload>
+
+    <n-form-item mt-5 label="Hash algorithm:" :show-feedback="false">
+      <n-select mb-5 v-model:value="hasher" :options="[
+        {
+          label: 'MD5',
+          value: 'md5',
+        },
+        {
+          label: 'SHA-1',
+          value: 'sha1',
+        },
+        {
+          label: 'SHA-256',
+          value: 'sha256',
+        },
+        {
+          label: 'SHA-512',
+          value: 'sha512',
+        },
+        {
+          label: 'SHA-3',
+          value: 'sha3',
+        },
+      ]" />
+    </n-form-item>
+
+    <n-form-item label="Digest encoding:" :show-feedback="false">
+      <n-select mb-5 v-model:value="digest" :options="[
+        {
+          label: 'Hexadecimal (base 16)',
+          value: 'hex',
+        },
+        {
+          label: 'Base64 (base 64)',
+          value: 'base64',
+        },
+      ]" />
+    </n-form-item>
+
+    <n-form-item label="Your file's hash:" :show-feedback="false">
+      <c-input-text :value="hash" multiline readonly placeholder="Result" rows="5" mb-2 />
+    </n-form-item>
+
+    <div flex justify-center>
+      <c-button :disabled="!hash.length" @click="copyHash()">
+        Copy
+      </c-button>
+    </div>
+  </c-card>
+</template>
+
+<script setup lang="ts">
+import { type Ref, ref, isRef, watch } from 'vue';
+import { useCopy } from '@/composable/copy';
+import type { UploadFileInfo } from 'naive-ui';
+import { Upload } from '@vicons/tabler';
+import CryptoJS from "crypto-js";
+
+type Hasher = "md5";
+type Digest = "base64" | "hex";
+
+function useFileHash(target: Ref<File>, hasher: Ref<Hasher>, digest: Ref<Digest>) {
+  const hash = ref('');
+  const promise = ref() as Ref<Promise<string>>
+
+  function execute() {
+    if (typeof window === "undefined") {
+      return
+    }
+
+    promise.value = new Promise<string>((resolve, reject) => {
+      try {
+        if (target.value) {
+          resolve(readAndHashFile(target.value, hasher.value, digest.value));
+        }
+      } catch (error) {
+        reject(error);
+      }
+    });
+
+    promise.value.then(res => hash.value = res)
+    return promise.value;
+  }
+
+  watch(target, execute, { immediate: true });
+  watch(hasher, execute, { immediate: true });
+  watch(digest, execute, { immediate: true });
+
+  return {
+    hash,
+    promise,
+    execute,
+  }
+}
+
+function readAndHashFile(file: File, hashType: Hasher, digestType: Digest) {
+  return new Promise<string>((resolve, reject) => {
+    const fr = new FileReader();
+    fr.onload = (ev) => {
+      const content = ev.target!.result as string;
+
+      const hasher = {
+        md5: CryptoJS.MD5,
+        sha1: CryptoJS.SHA1,
+        sha256: CryptoJS.SHA256,
+        sha512: CryptoJS.SHA512,
+        sha3: CryptoJS.SHA3,
+      }
+
+      const digest = {
+        base64: CryptoJS.enc.Base64,
+        hex: CryptoJS.enc.Hex
+      };
+
+      resolve(hasher[hashType](content).toString(digest[digestType]));
+    };
+    fr.onerror = reject;
+    fr.readAsBinaryString(file);
+  })
+}
+
+const fileList = ref();
+const fileInput = ref() as Ref<File>;
+
+const hasher = ref<Hasher>("md5");
+const digest = ref<Digest>("hex");
+
+const { hash } = useFileHash(fileInput, hasher, digest);
+const { copy: copyHash } = useCopy({ source: hash, text: 'File hash copied to the clipboard' });
+
+async function onUpload({ file: { file } }: { file: UploadFileInfo }) {
+  if (file) {
+    fileList.value = [];
+    fileInput.value = file;
+  }
+}
+</script>