Initial Commit

node_modules/app-builder-lib/out/asar/asar.js

@@ -0,0 +1,151 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.readAsarJson = exports.readAsar = exports.readAsarHeader = exports.AsarFilesystem = exports.Node = void 0;
+const chromium_pickle_js_1 = require("chromium-pickle-js");
+const fs_extra_1 = require("fs-extra");
+const path = require("path");
+class Node {
+}
+exports.Node = Node;
+class AsarFilesystem {
+    constructor(src, header = new Node(), headerSize = -1) {
+        this.src = src;
+        this.header = header;
+        this.headerSize = headerSize;
+        this.offset = 0;
+        if (this.header.files == null) {
+            this.header.files = {};
+        }
+    }
+    searchNodeFromDirectory(p, isCreate) {
+        let node = this.header;
+        for (const dir of p.split(path.sep)) {
+            if (dir !== ".") {
+                let child = node.files[dir];
+                if (child == null) {
+                    if (!isCreate) {
+                        return null;
+                    }
+                    child = new Node();
+                    child.files = {};
+                    node.files[dir] = child;
+                }
+                node = child;
+            }
+        }
+        return node;
+    }
+    getOrCreateNode(p) {
+        if (p == null || p.length === 0) {
+            return this.header;
+        }
+        const name = path.basename(p);
+        const dirNode = this.searchNodeFromDirectory(path.dirname(p), true);
+        if (dirNode.files == null) {
+            dirNode.files = {};
+        }
+        let result = dirNode.files[name];
+        if (result == null) {
+            result = new Node();
+            dirNode.files[name] = result;
+        }
+        return result;
+    }
+    addFileNode(file, dirNode, size, unpacked, stat, integrity) {
+        if (size > 4294967295) {
+            throw new Error(`${file}: file size cannot be larger than 4.2GB`);
+        }
+        const node = new Node();
+        node.size = size;
+        if (integrity) {
+            node.integrity = integrity;
+        }
+        if (unpacked) {
+            node.unpacked = true;
+        }
+        else {
+            // electron expects string
+            node.offset = this.offset.toString();
+            if (process.platform !== "win32" && stat.mode & 0o100) {
+                node.executable = true;
+            }
+            this.offset += node.size;
+        }
+        let children = dirNode.files;
+        if (children == null) {
+            children = {};
+            dirNode.files = children;
+        }
+        children[path.basename(file)] = node;
+        return node;
+    }
+    getNode(p) {
+        const node = this.searchNodeFromDirectory(path.dirname(p), false);
+        return node.files[path.basename(p)];
+    }
+    getFile(p, followLinks = true) {
+        const info = this.getNode(p);
+        // if followLinks is false we don't resolve symlinks
+        return followLinks && info.link != null ? this.getFile(info.link) : info;
+    }
+    async readJson(file) {
+        return JSON.parse((await this.readFile(file)).toString());
+    }
+    readFile(file) {
+        return readFileFromAsar(this, file, this.getFile(file));
+    }
+}
+exports.AsarFilesystem = AsarFilesystem;
+async function readAsarHeader(archive) {
+    const fd = await (0, fs_extra_1.open)(archive, "r");
+    let size;
+    let headerBuf;
+    try {
+        const sizeBuf = Buffer.allocUnsafe(8);
+        if ((await (0, fs_extra_1.read)(fd, sizeBuf, 0, 8, null)).bytesRead !== 8) {
+            throw new Error("Unable to read header size");
+        }
+        const sizePickle = (0, chromium_pickle_js_1.createFromBuffer)(sizeBuf);
+        size = sizePickle.createIterator().readUInt32();
+        headerBuf = Buffer.allocUnsafe(size);
+        if ((await (0, fs_extra_1.read)(fd, headerBuf, 0, size, null)).bytesRead !== size) {
+            throw new Error("Unable to read header");
+        }
+    }
+    finally {
+        await (0, fs_extra_1.close)(fd);
+    }
+    const headerPickle = (0, chromium_pickle_js_1.createFromBuffer)(headerBuf);
+    return { header: headerPickle.createIterator().readString(), size };
+}
+exports.readAsarHeader = readAsarHeader;
+async function readAsar(archive) {
+    const { header, size } = await readAsarHeader(archive);
+    return new AsarFilesystem(archive, JSON.parse(header), size);
+}
+exports.readAsar = readAsar;
+async function readAsarJson(archive, file) {
+    const fs = await readAsar(archive);
+    return await fs.readJson(file);
+}
+exports.readAsarJson = readAsarJson;
+async function readFileFromAsar(filesystem, filename, info) {
+    const size = info.size;
+    const buffer = Buffer.allocUnsafe(size);
+    if (size <= 0) {
+        return buffer;
+    }
+    if (info.unpacked) {
+        return await (0, fs_extra_1.readFile)(path.join(`${filesystem.src}.unpacked`, filename));
+    }
+    const fd = await (0, fs_extra_1.open)(filesystem.src, "r");
+    try {
+        const offset = 8 + filesystem.headerSize + parseInt(info.offset, 10);
+        await (0, fs_extra_1.read)(fd, buffer, 0, size, offset);
+    }
+    finally {
+        await (0, fs_extra_1.close)(fd);
+    }
+    return buffer;
+}
+//# sourceMappingURL=asar.js.map