From 5a739b543dd7f70ab71143234f1c623a0775ef79 Mon Sep 17 00:00:00 2001
From: Salem Yaslem <s@sy.sa>
Date: Mon, 4 Nov 2024 09:12:02 +0300
Subject: [PATCH] add binary view

---
 app.vue                      |   9 ++-
 components/binary-viewer.vue | 144 +++++++++++++++++++++++++++++++++++
 composables/files-manager.ts |   3 +-
 package-lock.json            |   6 +-
 4 files changed, 157 insertions(+), 5 deletions(-)
 create mode 100644 components/binary-viewer.vue

diff --git a/app.vue b/app.vue
index e50a53a..7e9a888 100644
--- a/app.vue
+++ b/app.vue
@@ -5,6 +5,7 @@ import { useDisplay } from 'vuetify/lib/framework.mjs';
 import { HistoryManager } from './composables/history-manager';
 import { FilesManager } from './composables/files-manager';
 import type { iFile } from "composables/worker/7zip-manager"
+import { videoExtensions, binaryExtensions } from '#imports';
 
 let display = useDisplay();
 let drawer = ref(!display.mdAndDown.value);
@@ -57,6 +58,8 @@ watchEffect(async () => {
   const file = filesManager.getFile(selectedPath.value);
   filesGridList.value = file?.content;
 
+  console.log("Selected file", file);
+
   selectedList.value = [];
   for (const selectedElement of document.querySelectorAll(".selectable.selected")) {
     selectedElement.classList.remove("selected");
@@ -193,9 +196,13 @@ function stepUp(path: string) {
           <MediaVideoPlayer :src="mediaBlobUrl"></MediaVideoPlayer>
         </template>
         <template
-          v-if="!filesManager.getFile(selectedPath)?.isFolder && files.length && !videoExtensions.includes(filesManager.getFile(selectedPath)?.extension)">
+          v-if="!filesManager.getFile(selectedPath)?.isFolder && files.length && !videoExtensions.includes(filesManager.getFile(selectedPath)?.extension) && !binaryExtensions.includes(filesManager.getFile(selectedPath)?.extension)">
           <TextEditor :file="filesManager.getFile(selectedPath)" :filesManager="filesManager"></TextEditor>
         </template>
+        <template
+          v-if="!filesManager.getFile(selectedPath)?.isFolder && files.length && binaryExtensions.includes(filesManager.getFile(selectedPath)?.extension)">
+          <BinaryViewer :file="filesManager.getFile(selectedPath)" :filesManager="filesManager"></BinaryViewer>
+        </template>
         <template v-if="!files.length">
           <!-- tutorial drag and drop zipped file here and review it securely -->
           <v-row align="center" justify="center">
diff --git a/components/binary-viewer.vue b/components/binary-viewer.vue
new file mode 100644
index 0000000..f84170d
--- /dev/null
+++ b/components/binary-viewer.vue
@@ -0,0 +1,144 @@
+<script lang="ts" setup>
+import { ref, onMounted, computed } from 'vue'
+import { FilesManager } from '~/composables/files-manager';
+import { iFile } from '~/composables/worker/7zip-manager';
+
+interface Props {
+  file: iFile,
+  filesManager: FilesManager
+}
+
+const { file, filesManager } = defineProps<Props>()
+const buffer = ref<Uint8Array>()
+const containerRef = ref<HTMLElement>()
+const isLoading = ref(true)
+const rowHeight = 24 // pixels per row
+const visibleRows = ref(0)
+const scrollTop = ref(0)
+
+// Calculate total rows and visible window
+const totalRows = computed(() => buffer.value ? Math.ceil(buffer.value.length / 16) : 0)
+const startRow = computed(() => Math.floor(scrollTop.value / rowHeight))
+const endRow = computed(() => Math.min(startRow.value + visibleRows.value + 5, totalRows.value))
+
+// Get only the visible rows data
+const visibleData = computed(() => {
+  if (!buffer.value) return []
+  
+  const rows = []
+  for (let i = startRow.value; i < endRow.value; i++) {
+    const offset = i * 16
+    const chunk = buffer.value.slice(offset, offset + 16)
+    const hex = Array.from(chunk).map(b => b.toString(16).padStart(2, '0')).join(' ')
+    const ascii = Array.from(chunk).map(b => b >= 32 && b <= 126 ? String.fromCharCode(b) : '.').join('')
+    
+    rows.push({
+      address: offset.toString(16).padStart(8, '0'),
+      hex: hex.padEnd(48, ' '),
+      ascii
+    })
+  }
+  return rows
+})
+
+// Handle scroll events
+function onScroll(event: Event) {
+  const container = event.target as HTMLElement
+  scrollTop.value = container.scrollTop
+}
+
+// Calculate visible rows based on container height
+function updateVisibleRows() {
+  if (containerRef.value) {
+    visibleRows.value = Math.ceil(containerRef.value.clientHeight / rowHeight)
+  }
+}
+
+onMounted(async () => {
+  try {
+    buffer.value = await filesManager.getFileContent(file.path, "binary") as Uint8Array
+    updateVisibleRows()
+    window.addEventListener('resize', updateVisibleRows)
+  } finally {
+    isLoading.value = false
+  }
+})
+</script>
+
+<template>
+  <div class="binary-viewer">
+    <div v-if="isLoading" class="loading">
+      Loading...
+    </div>
+    <div
+      v-else
+      ref="containerRef"
+      class="hex-container"
+      @scroll="onScroll"
+    >
+      <div 
+        class="scroll-content"
+        :style="{
+          height: `${totalRows * rowHeight}px`,
+          paddingTop: `${startRow * rowHeight}px`
+        }"
+      >
+        <div
+          v-for="row in visibleData"
+          :key="row.address"
+          class="hex-line"
+        >
+          <span class="address">{{ row.address }}</span>
+          <span class="hex">{{ row.hex }}</span>
+          <span class="ascii">{{ row.ascii }}</span>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.binary-viewer {
+  font-family: monospace;
+  white-space: pre;
+  padding: 1rem;
+  background-color: var(--v-theme-surface);
+  height: calc(100vh - 150px);
+}
+
+.hex-container {
+  height: 100%;
+  overflow-y: auto;
+  position: relative;
+}
+
+.scroll-content {
+  position: absolute;
+  width: 100%;
+}
+
+.hex-line {
+  line-height: 1.5;
+  height: v-bind(rowHeight + 'px');
+}
+
+.address {
+  color: #666;
+  margin-right: 1rem;
+}
+
+.hex {
+  margin-right: 1rem;
+}
+
+.ascii {
+  color: #666;
+}
+
+.loading {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  height: 100%;
+}
+</style>
diff --git a/composables/files-manager.ts b/composables/files-manager.ts
index 37176b1..c9a7db1 100644
--- a/composables/files-manager.ts
+++ b/composables/files-manager.ts
@@ -10,7 +10,8 @@ import mime from 'mime';
 export const videoExtensions = ['mp4', 'avi', 'mov', 'mkv'];
 export const imageExtensions = ['jpg', 'jpeg', 'png', 'gif', 'webp'];
 export const audioExtensions = ['mp3', 'wav', 'ogg', 'flac'];
-export const textExtensions = ['pdf', 'doc', 'docx', 'xls', 'xlsx', 'ppt', 'pptx', 'txt', 'md', 'js', 'ts', 'php', 'c', 'cpp', 'py', 'html', 'css', 'scss', 'sass', 'less', 'json', 'xml', 'sql', 'java', 'go', 'rb', 'sh', 'bat', 'ps1', 'cmd', 'yml', 'yaml', 'ini', 'toml', 'csv', 'tsv', 'gitignore', 'lock', 'htaccess', 'htpasswd', 'env', 'dockerfile', 'gitattributes', 'gitmodules', 'editorconfig', 'babelrc', 'eslintrc', 'eslintignore', 'prettierrc', 'prettierignore', 'stylelintrc', 'stylelintignore', 'postcssrc', 'postcss.config', 'jsx', 'tsx', 'license']
+export const textExtensions = ['pdf', 'doc', 'docx', 'xls', 'xlsx', 'ppt', 'pptx', 'txt', 'md', 'js', 'ts', 'php', 'c', 'cpp', 'py', 'html', 'css', 'scss', 'sass', 'less', 'json', 'xml', 'sql', 'java', 'go', 'rb', 'sh', 'bat', 'ps1', 'cmd', 'yml', 'yaml', 'ini', 'toml', 'csv', 'tsv', 'gitignore', 'lock', 'htaccess', 'htpasswd', 'env', 'dockerfile', 'gitattributes', 'gitmodules', 'editorconfig', 'babelrc', 'eslintrc', 'eslintignore', 'prettierrc', 'prettierignore', 'stylelintrc', 'stylelintignore', 'postcssrc', 'postcss.config', 'jsx', 'tsx', 'license'];
+export const binaryExtensions = ['exe', 'dll', 'so', 'dylib', 'bin', 'dat', 'db', 'sqlite', 'o', 'class', 'pyc'];
 
 export class FilesManager {
     consoleOutputBuffer: string[] = [];
diff --git a/package-lock.json b/package-lock.json
index a6beedf..496db13 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2662,9 +2662,9 @@
       }
     },
     "node_modules/caniuse-lite": {
-      "version": "1.0.30001487",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001487.tgz",
-      "integrity": "sha512-83564Z3yWGqXsh2vaH/mhXfEM0wX+NlBCm1jYHOb97TrTWJEmPTccZgeLTPBUUb0PNVo+oomb7wkimZBIERClA==",
+      "version": "1.0.30001677",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001677.tgz",
+      "integrity": "sha512-fmfjsOlJUpMWu+mAAtZZZHz7UEwsUxIIvu1TJfO1HqFQvB/B+ii0xr9B5HpbZY/mC4XZ8SvjHJqtAY6pDPQEog==",
       "dev": true,
       "funding": [
         {