From e6953d1b67b81a6d3c19973b706f29637c421f98 Mon Sep 17 00:00:00 2001
From: Corentin Thomasset <corentin.thomasset74@gmail.com>
Date: Mon, 25 Jul 2022 23:21:42 +0200
Subject: [PATCH] refactor(base64): split base64 text and file conversion in
 two tools + base64 to file

---
 package-lock.json                             | 20 ++++--
 package.json                                  |  2 +
 src/composable/downloadBase64.ts              | 10 ++-
 .../base64-file-converter.vue}                | 19 +++---
 .../index.ts                                  |  4 +-
 .../base64-string-converter.vue               | 65 +++++++++++++++++++
 src/tools/base64-string-converter/index.ts    | 12 ++++
 src/tools/index.ts                            |  6 +-
 8 files changed, 117 insertions(+), 21 deletions(-)
 rename src/tools/{base64-converter/base64-converter.vue => base64-file-converter/base64-file-converter.vue} (73%)
 rename src/tools/{base64-converter => base64-file-converter}/index.ts (82%)
 create mode 100644 src/tools/base64-string-converter/base64-string-converter.vue
 create mode 100644 src/tools/base64-string-converter/index.ts

diff --git a/package-lock.json b/package-lock.json
index 0017706b..cbfa6e9e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,6 +25,7 @@
         "highlight.js": "^11.5.1",
         "lodash": "^4.17.21",
         "mathjs": "^10.6.0",
+        "mime-types": "^2.1.35",
         "naive-ui": "^2.31.0",
         "pinia": "^2.0.11",
         "plausible-tracker": "^0.3.5",
@@ -40,6 +41,7 @@
         "@types/bcryptjs": "^2.4.2",
         "@types/crypto-js": "^4.1.1",
         "@types/jsdom": "^16.2.14",
+        "@types/mime-types": "^2.1.1",
         "@types/node": "^16.11.25",
         "@types/qrcode": "^1.4.2",
         "@types/randombytes": "^2.0.0",
@@ -2248,6 +2250,12 @@
       "integrity": "sha512-eC4U9MlIcu2q0KQmXszyn5Akca/0jrQmwDRgpAMJai7qBWq4amIQhZyNau4VYGtCeALvW1/NtjzJJ567aZxfKA==",
       "dev": true
     },
+    "node_modules/@types/mime-types": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/@types/mime-types/-/mime-types-2.1.1.tgz",
+      "integrity": "sha512-vXOTGVSLR2jMw440moWTC7H19iUyLtP3Z1YTj7cSsubOICinjMxFeb/V57v9QdyyPGbbWolUFSSmSiRSn94tFw==",
+      "dev": true
+    },
     "node_modules/@types/minimist": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/@types/minimist/-/minimist-1.2.2.tgz",
@@ -7703,7 +7711,6 @@
       "version": "1.52.0",
       "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
       "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
-      "dev": true,
       "engines": {
         "node": ">= 0.6"
       }
@@ -7712,7 +7719,6 @@
       "version": "2.1.35",
       "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
       "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
-      "dev": true,
       "dependencies": {
         "mime-db": "1.52.0"
       },
@@ -12847,6 +12853,12 @@
       "integrity": "sha512-eC4U9MlIcu2q0KQmXszyn5Akca/0jrQmwDRgpAMJai7qBWq4amIQhZyNau4VYGtCeALvW1/NtjzJJ567aZxfKA==",
       "dev": true
     },
+    "@types/mime-types": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/@types/mime-types/-/mime-types-2.1.1.tgz",
+      "integrity": "sha512-vXOTGVSLR2jMw440moWTC7H19iUyLtP3Z1YTj7cSsubOICinjMxFeb/V57v9QdyyPGbbWolUFSSmSiRSn94tFw==",
+      "dev": true
+    },
     "@types/minimist": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/@types/minimist/-/minimist-1.2.2.tgz",
@@ -16899,14 +16911,12 @@
     "mime-db": {
       "version": "1.52.0",
       "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
-      "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
-      "dev": true
+      "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg=="
     },
     "mime-types": {
       "version": "2.1.35",
       "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
       "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
-      "dev": true,
       "requires": {
         "mime-db": "1.52.0"
       }
diff --git a/package.json b/package.json
index 17b49d6b..a8d64bfd 100644
--- a/package.json
+++ b/package.json
@@ -47,6 +47,7 @@
     "highlight.js": "^11.5.1",
     "lodash": "^4.17.21",
     "mathjs": "^10.6.0",
+    "mime-types": "^2.1.35",
     "naive-ui": "^2.31.0",
     "pinia": "^2.0.11",
     "plausible-tracker": "^0.3.5",
@@ -62,6 +63,7 @@
     "@types/bcryptjs": "^2.4.2",
     "@types/crypto-js": "^4.1.1",
     "@types/jsdom": "^16.2.14",
+    "@types/mime-types": "^2.1.1",
     "@types/node": "^16.11.25",
     "@types/qrcode": "^1.4.2",
     "@types/randombytes": "^2.0.0",
diff --git a/src/composable/downloadBase64.ts b/src/composable/downloadBase64.ts
index e5b621fe..d2ea576b 100644
--- a/src/composable/downloadBase64.ts
+++ b/src/composable/downloadBase64.ts
@@ -1,11 +1,17 @@
+import { extension as getExtensionFromMime } from 'mime-types';
 import type { Ref } from 'vue';
 
-export function useDownloadFileFromBase64({ source, filename = 'file' }: { source: Ref<string>; filename?: string }) {
+export function useDownloadFileFromBase64({ source, filename }: { source: Ref<string>; filename?: string }) {
   return {
     download() {
+      const base64 = source.value;
+      const mimeType = base64.match(/data:(.*?);base64/i)?.[1] ?? 'text/plain';
+      console.log({ mimeType });
+      const cleanFileName = filename ?? `file.${getExtensionFromMime(mimeType)}`;
+
       const a = document.createElement('a');
       a.href = source.value;
-      a.download = filename;
+      a.download = cleanFileName;
       a.click();
     },
   };
diff --git a/src/tools/base64-converter/base64-converter.vue b/src/tools/base64-file-converter/base64-file-converter.vue
similarity index 73%
rename from src/tools/base64-converter/base64-converter.vue
rename to src/tools/base64-file-converter/base64-file-converter.vue
index 307ea2fc..88371a0e 100644
--- a/src/tools/base64-converter/base64-converter.vue
+++ b/src/tools/base64-file-converter/base64-file-converter.vue
@@ -1,9 +1,8 @@
 <template>
-  <n-card title="Text to base64">
-    <n-input v-model:value="textInput" type="textarea" placeholder="Put your string here..." />
-    <n-input :value="textBase64" type="textarea" readonly />
+  <n-card title="Base64 to file">
+    <n-input v-model:value="base64Input" type="textarea" placeholder="Put your base64 file string here..." rows="5" />
     <n-space justify="center">
-      <n-button secondary @click="copyTextBase64()"> Copy </n-button>
+      <n-button secondary @click="download()"> Download file </n-button>
     </n-space>
   </n-card>
 
@@ -17,7 +16,7 @@
       </n-upload-dragger>
     </n-upload>
 
-    <n-input :value="fileBase64" type="textarea" readonly />
+    <n-input :value="fileBase64" type="textarea" readonly placeholder="File in ase64 will be here" />
     <n-space justify="center">
       <n-button secondary @click="copyFileBase64()"> Copy </n-button>
     </n-space>
@@ -26,14 +25,14 @@
 
 <script setup lang="ts">
 import { useCopy } from '@/composable/copy';
-import { useBase64 } from '@vueuse/core';
+import { useDownloadFileFromBase64 } from '@/composable/downloadBase64';
 import { Upload } from '@vicons/tabler';
-import { ref, type Ref } from 'vue';
+import { useBase64 } from '@vueuse/core';
 import type { UploadFileInfo } from 'naive-ui';
+import { ref, type Ref } from 'vue';
 
-const textInput = ref('');
-const { base64: textBase64 } = useBase64(textInput);
-const { copy: copyTextBase64 } = useCopy({ source: textBase64, text: 'Base64 string copied to the clipboard' });
+const base64Input = ref('');
+const { download } = useDownloadFileFromBase64({ source: base64Input });
 
 const fileList = ref();
 const fileInput = ref() as Ref<File>;
diff --git a/src/tools/base64-converter/index.ts b/src/tools/base64-file-converter/index.ts
similarity index 82%
rename from src/tools/base64-converter/index.ts
rename to src/tools/base64-file-converter/index.ts
index aa8980dc..ba312ec0 100644
--- a/src/tools/base64-converter/index.ts
+++ b/src/tools/base64-file-converter/index.ts
@@ -2,11 +2,11 @@ import { FileDigit } from '@vicons/tabler';
 import { defineTool } from '../tool';
 
 export const tool = defineTool({
-  name: 'Base64 converter',
+  name: 'Base64 file converter',
   path: '/base64-converter',
   description: "Convert string, files or images into a it's base64 representation.",
   keywords: ['base64', 'converter', 'upload', 'image', 'file', 'conversion', 'web', 'data', 'format'],
-  component: () => import('./base64-converter.vue'),
+  component: () => import('./base64-file-converter.vue'),
   icon: FileDigit,
   redirectFrom: ['/file-to-base64', '/base64-string-converter'],
 });
diff --git a/src/tools/base64-string-converter/base64-string-converter.vue b/src/tools/base64-string-converter/base64-string-converter.vue
new file mode 100644
index 00000000..c38c7ceb
--- /dev/null
+++ b/src/tools/base64-string-converter/base64-string-converter.vue
@@ -0,0 +1,65 @@
+<template>
+  <n-card title="String to base64">
+    <n-form-item label="String to encode">
+      <n-input v-model:value="textInput" type="textarea" placeholder="Put your string here..." rows="5" />
+    </n-form-item>
+
+    <n-form-item label="Base64 of string">
+      <n-input
+        :value="base64Output"
+        type="textarea"
+        readonly
+        placeholder="The base64 encoding of your string will be here"
+        rows="5"
+      />
+    </n-form-item>
+
+    <n-space justify="center">
+      <n-button secondary @click="copyTextBase64()"> Copy base64 </n-button>
+    </n-space>
+  </n-card>
+
+  <n-card title="Base64 to string">
+    <n-form-item
+      label="Base64 string to decode"
+      :validation-status="b64Validation.status"
+      :feedback="b64Validation.message"
+    >
+      <n-input v-model:value="base64Input" type="textarea" placeholder="Your base64 string..." rows="5" />
+    </n-form-item>
+
+    <n-form-item label="Decoded string">
+      <n-input :value="textOutput" type="textarea" readonly placeholder="The decoded string will be here" rows="5" />
+    </n-form-item>
+
+    <n-space justify="center">
+      <n-button secondary @click="copyText()"> Copy decoded string </n-button>
+    </n-space>
+  </n-card>
+</template>
+
+<script setup lang="ts">
+import { useCopy } from '@/composable/copy';
+import { useValidation } from '@/composable/validation';
+import { computed, ref } from 'vue';
+
+const textInput = ref('');
+const base64Output = computed(() => window.btoa(textInput.value));
+const { copy: copyTextBase64 } = useCopy({ source: base64Output, text: 'Base64 string copied to the clipboard' });
+
+const base64Input = ref('');
+const textOutput = computed(() => {
+  try {
+    return window.atob(base64Input.value);
+  } catch (_) {
+    return '';
+  }
+});
+const { copy: copyText } = useCopy({ source: textOutput, text: 'String copied to the clipboard' });
+const b64Validation = useValidation({
+  source: base64Input,
+  rules: [{ message: 'Invalid base64 string', validator: (value) => true || window.atob(value) }],
+});
+</script>
+
+<style lang="less" scoped></style>
diff --git a/src/tools/base64-string-converter/index.ts b/src/tools/base64-string-converter/index.ts
new file mode 100644
index 00000000..0dd9bee2
--- /dev/null
+++ b/src/tools/base64-string-converter/index.ts
@@ -0,0 +1,12 @@
+import { FileDigit } from '@vicons/tabler';
+import { defineTool } from '../tool';
+
+export const tool = defineTool({
+  name: 'Base64 string encoder/decoder',
+  path: '/base64-string-converter',
+  description: 'Simply encode and decode string into a their base64 representation.',
+  keywords: ['base64', 'converter', 'conversion', 'web', 'data', 'format', 'atob', 'btoa'],
+  component: () => import('./base64-string-converter.vue'),
+  icon: FileDigit,
+  redirectFrom: ['/file-to-base64', '/base64-converter'],
+});
diff --git a/src/tools/index.ts b/src/tools/index.ts
index 18c04b7f..5a218f33 100644
--- a/src/tools/index.ts
+++ b/src/tools/index.ts
@@ -1,7 +1,8 @@
 import { LockOpen } from '@vicons/tabler';
 import type { ToolCategory } from './tool';
 
-import { tool as base64Converter } from './base64-converter';
+import { tool as base64FileConverter } from './base64-file-converter';
+import { tool as base64StringConverter } from './base64-string-converter';
 import { tool as basicAuthGenerator } from './basic-auth-generator';
 import { tool as bcrypt } from './bcrypt';
 import { tool as bip39 } from './bip39-generator';
@@ -43,7 +44,8 @@ export const toolsByCategory: ToolCategory[] = [
       dateTimeConverter,
       baseConverter,
       romanNumeralConverter,
-      base64Converter,
+      base64StringConverter,
+      base64FileConverter,
       colorConverter,
       caseConverter,
     ],