first commit

2025-10-10 18:00:07 -04:00
commit 06b59a3a99
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+import * as fs from 'fs';
+import * as path from 'path';
+import { Extractor } from './Extractor';
+export class ExtractorFile extends Extractor {
+    constructor(
+    // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types,@typescript-eslint/no-explicit-any
+    unrar, filepath, targetPath, password, filenameTransform) {
+        super(unrar, password);
+        this.filenameTransform = filenameTransform;
+        this._filePath = filepath;
+        this.fileMap = {};
+        this._target = targetPath;
+    }
+    open(filename) {
+        const fd = fs.openSync(filename, 'r');
+        this.fileMap[fd] = {
+            size: fs.fstatSync(fd).size,
+            pos: 0,
+            name: filename,
+        };
+        return fd;
+    }
+    create(filename) {
+        const fullpath = path.join(this._target, this.filenameTransform(filename));
+        const dir = path.parse(fullpath).dir;
+        // Skip if directory is the current directory
+        if (dir !== '') {
+            fs.mkdirSync(dir, { recursive: true });
+        }
+        const fd = fs.openSync(fullpath, 'w');
+        this.fileMap[fd] = {
+            size: 0,
+            pos: 0,
+            name: filename,
+        };
+        return fd;
+    }
+    closeFile(fd) {
+        delete this.fileMap[fd];
+        fs.closeSync(fd);
+    }
+    read(fd, buf, size) {
+        const file = this.fileMap[fd];
+        const buffer = Buffer.allocUnsafe(size);
+        const readed = fs.readSync(fd, buffer, 0, size, file.pos);
+        this.unrar.HEAPU8.set(buffer, buf);
+        file.pos += readed;
+        return readed;
+    }
+    write(fd, buf, size) {
+        const file = this.fileMap[fd];
+        const writeNum = fs.writeSync(fd, Buffer.from(this.unrar.HEAPU8.subarray(buf, buf + size)), 0, size);
+        file.pos += writeNum;
+        file.size += writeNum;
+        return writeNum === size;
+    }
+    tell(fd) {
+        return this.fileMap[fd].pos;
+    }
+    seek(fd, pos, method) {
+        const file = this.fileMap[fd];
+        let newPos = file.pos;
+        if (method === 'SET') {
+            newPos = 0;
+        }
+        else if (method === 'END') {
+            newPos = file.size;
+        }
+        newPos += pos;
+        if (newPos < 0 || newPos > file.size) {
+            return false;
+        }
+        file.pos = newPos;
+        return true;
+    }
+}
+//# sourceMappingURL=ExtractorFile.js.map