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105 lines
2.5 KiB
105 lines
2.5 KiB
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import { BaseFileSystem, ERRNO, Mode, AccessMode, OpenFlags } from "./webfuse/webfuse.js"
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class FileSystem extends BaseFileSystem {
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constructor(tokenProvider, stateListener, files) {
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super();
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this.tokenProvider = tokenProvider;
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this.stateListener = stateListener
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this.files = new Map();
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for(const file of files) {
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this.files.set("/" + file.name, file);
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}
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}
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access(path, mode) {
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// we do not allow write or execute
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if ((mode & AccessMode.W_OK) || (mode & AccessMode.X_OK)) {
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return ERRNO.EACCES;
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}
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if ((path = "/") || (this.files.has(path))) {
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return 0;
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}
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return ERRNO.ENOENT;
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}
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getattr(path) {
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if (path == "/") {
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return {
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nlink: 2,
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mode: Mode.DIR | 0o555
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};
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}
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else if (this.files.has(path)) {
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const file = this.files.get(path);
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const contents = file.contents();
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return {
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nlink: 1,
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mode: Mode.REG | 0o444,
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size: contents.length
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};
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}
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return ERRNO.ENOENT;
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}
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readdir(path) {
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if (path == "/") {
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const list = [];
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for(const file of this.files.values()) {
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list.push(file.name);
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}
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return list;
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}
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return ERRNO.ENOENT;
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}
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open(path, flags) {
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if (this.files.has(path)) {
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const accessMode = flags & OpenFlags.ACCESS_MODE;
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if (accessMode == OpenFlags.RDONLY) {
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return [0, 0];
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}
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else {
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return [ERRNO.EPERM, 0];
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}
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}
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return [ERRNO.ENOENT, 0];
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}
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read(path, size, offset, fd) {
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if (this.files.has(path)) {
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const file = this.files.get(path);
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const contents = file.contents();
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if (offset < contents.length) {
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const available = contents.length - offset;
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const length = (size < available) ? size : available;
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const data = contents.slice(offset, offset + length);
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return data;
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}
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return [];
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}
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else {
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return ERRNO.EBADF;
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}
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}
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getcreds() {
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const token = this.tokenProvider();
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return token;
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}
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connectionstatechanged(state) {
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this.stateListener(state);
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}
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}
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export { FileSystem }
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