Fixed Non-ASCII attachment filename will crash when downloading.

Thanks to xet7 !

Fixes #2759

packages/wekan-cfs-data-man/server/data-man-filepath.js

@@ -0,0 +1,108 @@
+var mime = Npm.require('mime');
+var fs = Npm.require("fs");
+
+/**
+ * @method DataMan.FilePath
+ * @public
+ * @constructor
+ * @param {String} filepath
+ * @param {String} [type] The data content (MIME) type. Will lookup from file if not passed.
+ */
+DataMan.FilePath = function DataManFilePath(filepath, type) {
+  var self = this;
+  self.filepath = filepath;
+  self._type = type || mime.lookup(filepath);
+};
+
+/**
+ * @method DataMan.FilePath.prototype.getBuffer
+ * @private
+ * @param {function} callback callback(err, buffer)
+ * @returns {Buffer|undefined}
+ *
+ * Passes a Buffer representing the data to a callback.
+ */
+DataMan.FilePath.prototype.getBuffer = function dataManFilePathGetBuffer(callback) {
+  var self = this;
+
+  // Call node readFile
+  fs.readFile(self.filepath, Meteor.bindEnvironment(function(err, buffer) {
+    callback(err, buffer);
+  }, function(err) {
+    callback(err);
+  }));
+};
+
+/**
+ * @method DataMan.FilePath.prototype.getDataUri
+ * @private
+ * @param {function} callback callback(err, dataUri)
+ *
+ * Passes a data URI representing the data to a callback.
+ */
+DataMan.FilePath.prototype.getDataUri = function dataManFilePathGetDataUri(callback) {
+  var self = this;
+
+  self.getBuffer(function (error, buffer) {
+    if (error) {
+      callback(error);
+    } else {
+      if (!self._type) {
+        callback(new Error("DataMan.getDataUri couldn't get a contentType"));
+      } else {
+        var dataUri = "data:" + self._type + ";base64," + buffer.toString("base64");
+        buffer = null;
+        callback(null, dataUri);
+      }
+    }
+  });
+};
+
+/**
+ * @method DataMan.FilePath.prototype.createReadStream
+ * @private
+ *
+ * Returns a read stream for the data.
+ */
+DataMan.FilePath.prototype.createReadStream = function dataManFilePathCreateReadStream() {
+  // Stream from filesystem
+  return fs.createReadStream(this.filepath);
+};
+
+/**
+ * @method DataMan.FilePath.prototype.size
+ * @param {function} callback callback(err, size)
+ * @private
+ *
+ * Passes the size in bytes of the data to a callback.
+ */
+DataMan.FilePath.prototype.size = function dataManFilePathSize(callback) {
+  var self = this;
+
+  if (typeof self._size === "number") {
+    callback(null, self._size);
+    return;
+  }
+
+  // We can get the size without buffering
+  fs.stat(self.filepath, Meteor.bindEnvironment(function (error, stats) {
+    if (stats && typeof stats.size === "number") {
+      self._size = stats.size;
+      callback(null, self._size);
+    } else {
+      callback(error);
+    }
+  }, function (error) {
+    callback(error);
+  }));
+};
+
+/**
+ * @method DataMan.FilePath.prototype.type
+ * @private
+ *
+ * Returns the type of the data.
+ */
+DataMan.FilePath.prototype.type = function dataManFilePathType() {
+  return this._type;
+};