2018-05-15 17:33:45 +00:00
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var path = require('./path.js');
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var hash32 = require('./encoding.js').hash32;
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2018-05-24 18:15:09 +00:00
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var NODE_TYPE_FILE = require('./constants.js').NODE_TYPE_FILE;
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var NODE_TYPE_DIRECTORY = require('./constants.js').NODE_TYPE_DIRECTORY;
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var NODE_TYPE_SYMBOLIC_LINK = require('./constants.js').NODE_TYPE_SYMBOLIC_LINK;
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var NODE_TYPE_META = require('./constants.js').NODE_TYPE_META;
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2018-05-15 17:33:45 +00:00
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var ROOT_DIRECTORY_NAME = require('./constants.js').ROOT_DIRECTORY_NAME;
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2018-05-24 18:55:36 +00:00
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// Name of file/dir. Must be '/' if the file is the root directory of the server
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function pathToName(pathName) {
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return pathName === ROOT_DIRECTORY_NAME ? ROOT_DIRECTORY_NAME : path.basename(pathName);
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2018-05-15 17:33:45 +00:00
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}
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2014-03-18 16:29:20 +00:00
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2014-06-02 20:44:20 +00:00
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function Node(options) {
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2014-05-23 18:14:06 +00:00
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var now = Date.now();
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2014-03-18 16:29:20 +00:00
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2014-06-02 20:44:20 +00:00
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this.id = options.id;
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2018-05-24 18:32:27 +00:00
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this.type = options.type || NODE_TYPE_FILE; // node type (file, directory, etc)
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2018-05-24 18:55:36 +00:00
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this.name = options.name || (pathToName(options.path));
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2014-06-02 20:44:20 +00:00
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this.size = options.size || 0; // size (bytes for files, entries for directories)
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this.atime = options.atime || now; // access time (will mirror ctime after creation)
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this.ctime = options.ctime || now; // creation/change time
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this.mtime = options.mtime || now; // modified time
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this.flags = options.flags || []; // file flags
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this.xattrs = options.xattrs || {}; // extended attributes
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this.nlinks = options.nlinks || 0; // links count
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this.data = options.data; // id for data object
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2018-05-24 19:41:54 +00:00
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this.version = options.version || 1;
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2018-05-24 18:55:36 +00:00
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// permissions and flags
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this.mode = options.mode || (this.type === NODE_TYPE_DIRECTORY ? /* 755 */ 493 : /* 644 */ 420);
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this.uid = options.uid || 0x0; // owner name
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this.gid = options.gid || 0x0; // group name
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2014-06-02 20:44:20 +00:00
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}
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2018-05-22 18:16:20 +00:00
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// When the node's path changes, update info that relates to it.
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2018-05-24 18:55:36 +00:00
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Node.prototype.updatePathInfo = function(newPath) {
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this.name = pathToName(newPath);
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2018-05-22 18:16:20 +00:00
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};
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2014-06-02 20:44:20 +00:00
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// Make sure the options object has an id on property,
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// either from caller or one we generate using supplied guid fn.
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function ensureID(options, prop, callback) {
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if(options[prop]) {
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callback(null);
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} else {
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options.guid(function(err, id) {
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options[prop] = id;
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callback(err);
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});
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}
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}
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Node.create = function(options, callback) {
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// We expect both options.id and options.data to be provided/generated.
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ensureID(options, 'id', function(err) {
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if(err) {
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callback(err);
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return;
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}
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ensureID(options, 'data', function(err) {
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if(err) {
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callback(err);
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return;
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}
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callback(null, new Node(options));
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});
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});
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2014-05-23 18:14:06 +00:00
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};
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2014-06-02 20:44:20 +00:00
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2018-05-22 18:16:20 +00:00
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Node.fromObject = function(object) {
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return new Node({
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id: object.id,
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2018-05-24 18:32:27 +00:00
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type: object.type,
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2018-05-24 18:55:36 +00:00
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name: object.name,
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2018-05-22 18:16:20 +00:00
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size: object.size,
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atime: object.atime,
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ctime: object.ctime,
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mtime: object.mtime,
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flags: object.flags,
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xattrs: object.xattrs,
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nlinks: object.nlinks,
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data: object.data,
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2018-05-24 18:55:36 +00:00
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mode: object.mode,
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uid: object.uid,
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gid: object.gid,
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2018-05-24 19:41:54 +00:00
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version: object.version
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2018-05-22 18:16:20 +00:00
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});
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};
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2014-06-02 20:44:20 +00:00
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module.exports = Node;
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