1 files changed, 384 insertions, 0 deletions
diff --git a/node_modules/bson/lib/bson/binary.js b/node_modules/bson/lib/bson/binary.js
new file mode 100644
index 0000000..6d190bc
--- /dev/null
+++ b/node_modules/bson/lib/bson/binary.js
@@ -0,0 +1,384 @@
+/**
+ * Module dependencies.
+ * @ignore
+ */
+
+// Test if we're in Node via presence of "global" not absence of "window"
+// to support hybrid environments like Electron
+if (typeof global !== 'undefined') {
+  var Buffer = require('buffer').Buffer; // TODO just use global Buffer
+}
+
+var utils = require('./parser/utils');
+
+/**
+ * A class representation of the BSON Binary type.
+ *
+ * Sub types
+ *  - **BSON.BSON_BINARY_SUBTYPE_DEFAULT**, default BSON type.
+ *  - **BSON.BSON_BINARY_SUBTYPE_FUNCTION**, BSON function type.
+ *  - **BSON.BSON_BINARY_SUBTYPE_BYTE_ARRAY**, BSON byte array type.
+ *  - **BSON.BSON_BINARY_SUBTYPE_UUID**, BSON uuid type.
+ *  - **BSON.BSON_BINARY_SUBTYPE_MD5**, BSON md5 type.
+ *  - **BSON.BSON_BINARY_SUBTYPE_USER_DEFINED**, BSON user defined type.
+ *
+ * @class
+ * @param {Buffer} buffer a buffer object containing the binary data.
+ * @param {Number} [subType] the option binary type.
+ * @return {Binary}
+ */
+function Binary(buffer, subType) {
+  if (!(this instanceof Binary)) return new Binary(buffer, subType);
+
+  if (
+    buffer != null &&
+    !(typeof buffer === 'string') &&
+    !Buffer.isBuffer(buffer) &&
+    !(buffer instanceof Uint8Array) &&
+    !Array.isArray(buffer)
+  ) {
+    throw new Error('only String, Buffer, Uint8Array or Array accepted');
+  }
+
+  this._bsontype = 'Binary';
+
+  if (buffer instanceof Number) {
+    this.sub_type = buffer;
+    this.position = 0;
+  } else {
+    this.sub_type = subType == null ? BSON_BINARY_SUBTYPE_DEFAULT : subType;
+    this.position = 0;
+  }
+
+  if (buffer != null && !(buffer instanceof Number)) {
+    // Only accept Buffer, Uint8Array or Arrays
+    if (typeof buffer === 'string') {
+      // Different ways of writing the length of the string for the different types
+      if (typeof Buffer !== 'undefined') {
+        this.buffer = utils.toBuffer(buffer);
+      } else if (
+        typeof Uint8Array !== 'undefined' ||
+        Object.prototype.toString.call(buffer) === '[object Array]'
+      ) {
+        this.buffer = writeStringToArray(buffer);
+      } else {
+        throw new Error('only String, Buffer, Uint8Array or Array accepted');
+      }
+    } else {
+      this.buffer = buffer;
+    }
+    this.position = buffer.length;
+  } else {
+    if (typeof Buffer !== 'undefined') {
+      this.buffer = utils.allocBuffer(Binary.BUFFER_SIZE);
+    } else if (typeof Uint8Array !== 'undefined') {
+      this.buffer = new Uint8Array(new ArrayBuffer(Binary.BUFFER_SIZE));
+    } else {
+      this.buffer = new Array(Binary.BUFFER_SIZE);
+    }
+    // Set position to start of buffer
+    this.position = 0;
+  }
+}
+
+/**
+ * Updates this binary with byte_value.
+ *
+ * @method
+ * @param {string} byte_value a single byte we wish to write.
+ */
+Binary.prototype.put = function put(byte_value) {
+  // If it's a string and a has more than one character throw an error
+  if (byte_value['length'] != null && typeof byte_value !== 'number' && byte_value.length !== 1)
+    throw new Error('only accepts single character String, Uint8Array or Array');
+  if ((typeof byte_value !== 'number' && byte_value < 0) || byte_value > 255)
+    throw new Error('only accepts number in a valid unsigned byte range 0-255');
+
+  // Decode the byte value once
+  var decoded_byte = null;
+  if (typeof byte_value === 'string') {
+    decoded_byte = byte_value.charCodeAt(0);
+  } else if (byte_value['length'] != null) {
+    decoded_byte = byte_value[0];
+  } else {
+    decoded_byte = byte_value;
+  }
+
+  if (this.buffer.length > this.position) {
+    this.buffer[this.position++] = decoded_byte;
+  } else {
+    if (typeof Buffer !== 'undefined' && Buffer.isBuffer(this.buffer)) {
+      // Create additional overflow buffer
+      var buffer = utils.allocBuffer(Binary.BUFFER_SIZE + this.buffer.length);
+      // Combine the two buffers together
+      this.buffer.copy(buffer, 0, 0, this.buffer.length);
+      this.buffer = buffer;
+      this.buffer[this.position++] = decoded_byte;
+    } else {
+      buffer = null;
+      // Create a new buffer (typed or normal array)
+      if (Object.prototype.toString.call(this.buffer) === '[object Uint8Array]') {
+        buffer = new Uint8Array(new ArrayBuffer(Binary.BUFFER_SIZE + this.buffer.length));
+      } else {
+        buffer = new Array(Binary.BUFFER_SIZE + this.buffer.length);
+      }
+
+      // We need to copy all the content to the new array
+      for (var i = 0; i < this.buffer.length; i++) {
+        buffer[i] = this.buffer[i];
+      }
+
+      // Reassign the buffer
+      this.buffer = buffer;
+      // Write the byte
+      this.buffer[this.position++] = decoded_byte;
+    }
+  }
+};
+
+/**
+ * Writes a buffer or string to the binary.
+ *
+ * @method
+ * @param {(Buffer|string)} string a string or buffer to be written to the Binary BSON object.
+ * @param {number} offset specify the binary of where to write the content.
+ * @return {null}
+ */
+Binary.prototype.write = function write(string, offset) {
+  offset = typeof offset === 'number' ? offset : this.position;
+
+  // If the buffer is to small let's extend the buffer
+  if (this.buffer.length < offset + string.length) {
+    var buffer = null;
+    // If we are in node.js
+    if (typeof Buffer !== 'undefined' && Buffer.isBuffer(this.buffer)) {
+      buffer = utils.allocBuffer(this.buffer.length + string.length);
+      this.buffer.copy(buffer, 0, 0, this.buffer.length);
+    } else if (Object.prototype.toString.call(this.buffer) === '[object Uint8Array]') {
+      // Create a new buffer
+      buffer = new Uint8Array(new ArrayBuffer(this.buffer.length + string.length));
+      // Copy the content
+      for (var i = 0; i < this.position; i++) {
+        buffer[i] = this.buffer[i];
+      }
+    }
+
+    // Assign the new buffer
+    this.buffer = buffer;
+  }
+
+  if (typeof Buffer !== 'undefined' && Buffer.isBuffer(string) && Buffer.isBuffer(this.buffer)) {
+    string.copy(this.buffer, offset, 0, string.length);
+    this.position = offset + string.length > this.position ? offset + string.length : this.position;
+    // offset = string.length
+  } else if (
+    typeof Buffer !== 'undefined' &&
+    typeof string === 'string' &&
+    Buffer.isBuffer(this.buffer)
+  ) {
+    this.buffer.write(string, offset, 'binary');
+    this.position = offset + string.length > this.position ? offset + string.length : this.position;
+    // offset = string.length;
+  } else if (
+    Object.prototype.toString.call(string) === '[object Uint8Array]' ||
+    (Object.prototype.toString.call(string) === '[object Array]' && typeof string !== 'string')
+  ) {
+    for (i = 0; i < string.length; i++) {
+      this.buffer[offset++] = string[i];
+    }
+
+    this.position = offset > this.position ? offset : this.position;
+  } else if (typeof string === 'string') {
+    for (i = 0; i < string.length; i++) {
+      this.buffer[offset++] = string.charCodeAt(i);
+    }
+
+    this.position = offset > this.position ? offset : this.position;
+  }
+};
+
+/**
+ * Reads **length** bytes starting at **position**.
+ *
+ * @method
+ * @param {number} position read from the given position in the Binary.
+ * @param {number} length the number of bytes to read.
+ * @return {Buffer}
+ */
+Binary.prototype.read = function read(position, length) {
+  length = length && length > 0 ? length : this.position;
+
+  // Let's return the data based on the type we have
+  if (this.buffer['slice']) {
+    return this.buffer.slice(position, position + length);
+  } else {
+    // Create a buffer to keep the result
+    var buffer =
+      typeof Uint8Array !== 'undefined'
+        ? new Uint8Array(new ArrayBuffer(length))
+        : new Array(length);
+    for (var i = 0; i < length; i++) {
+      buffer[i] = this.buffer[position++];
+    }
+  }
+  // Return the buffer
+  return buffer;
+};
+
+/**
+ * Returns the value of this binary as a string.
+ *
+ * @method
+ * @return {string}
+ */
+Binary.prototype.value = function value(asRaw) {
+  asRaw = asRaw == null ? false : asRaw;
+
+  // Optimize to serialize for the situation where the data == size of buffer
+  if (
+    asRaw &&
+    typeof Buffer !== 'undefined' &&
+    Buffer.isBuffer(this.buffer) &&
+    this.buffer.length === this.position
+  )
+    return this.buffer;
+
+  // If it's a node.js buffer object
+  if (typeof Buffer !== 'undefined' && Buffer.isBuffer(this.buffer)) {
+    return asRaw
+      ? this.buffer.slice(0, this.position)
+      : this.buffer.toString('binary', 0, this.position);
+  } else {
+    if (asRaw) {
+      // we support the slice command use it
+      if (this.buffer['slice'] != null) {
+        return this.buffer.slice(0, this.position);
+      } else {
+        // Create a new buffer to copy content to
+        var newBuffer =
+          Object.prototype.toString.call(this.buffer) === '[object Uint8Array]'
+            ? new Uint8Array(new ArrayBuffer(this.position))
+            : new Array(this.position);
+        // Copy content
+        for (var i = 0; i < this.position; i++) {
+          newBuffer[i] = this.buffer[i];
+        }
+        // Return the buffer
+        return newBuffer;
+      }
+    } else {
+      return convertArraytoUtf8BinaryString(this.buffer, 0, this.position);
+    }
+  }
+};
+
+/**
+ * Length.
+ *
+ * @method
+ * @return {number} the length of the binary.
+ */
+Binary.prototype.length = function length() {
+  return this.position;
+};
+
+/**
+ * @ignore
+ */
+Binary.prototype.toJSON = function() {
+  return this.buffer != null ? this.buffer.toString('base64') : '';
+};
+
+/**
+ * @ignore
+ */
+Binary.prototype.toString = function(format) {
+  return this.buffer != null ? this.buffer.slice(0, this.position).toString(format) : '';
+};
+
+/**
+ * Binary default subtype
+ * @ignore
+ */
+var BSON_BINARY_SUBTYPE_DEFAULT = 0;
+
+/**
+ * @ignore
+ */
+var writeStringToArray = function(data) {
+  // Create a buffer
+  var buffer =
+    typeof Uint8Array !== 'undefined'
+      ? new Uint8Array(new ArrayBuffer(data.length))
+      : new Array(data.length);
+  // Write the content to the buffer
+  for (var i = 0; i < data.length; i++) {
+    buffer[i] = data.charCodeAt(i);
+  }
+  // Write the string to the buffer
+  return buffer;
+};
+
+/**
+ * Convert Array ot Uint8Array to Binary String
+ *
+ * @ignore
+ */
+var convertArraytoUtf8BinaryString = function(byteArray, startIndex, endIndex) {
+  var result = '';
+  for (var i = startIndex; i < endIndex; i++) {
+    result = result + String.fromCharCode(byteArray[i]);
+  }
+  return result;
+};
+
+Binary.BUFFER_SIZE = 256;
+
+/**
+ * Default BSON type
+ *
+ * @classconstant SUBTYPE_DEFAULT
+ **/
+Binary.SUBTYPE_DEFAULT = 0;
+/**
+ * Function BSON type
+ *
+ * @classconstant SUBTYPE_DEFAULT
+ **/
+Binary.SUBTYPE_FUNCTION = 1;
+/**
+ * Byte Array BSON type
+ *
+ * @classconstant SUBTYPE_DEFAULT
+ **/
+Binary.SUBTYPE_BYTE_ARRAY = 2;
+/**
+ * OLD UUID BSON type
+ *
+ * @classconstant SUBTYPE_DEFAULT
+ **/
+Binary.SUBTYPE_UUID_OLD = 3;
+/**
+ * UUID BSON type
+ *
+ * @classconstant SUBTYPE_DEFAULT
+ **/
+Binary.SUBTYPE_UUID = 4;
+/**
+ * MD5 BSON type
+ *
+ * @classconstant SUBTYPE_DEFAULT
+ **/
+Binary.SUBTYPE_MD5 = 5;
+/**
+ * User BSON type
+ *
+ * @classconstant SUBTYPE_DEFAULT
+ **/
+Binary.SUBTYPE_USER_DEFINED = 128;
+
+/**
+ * Expose.
+ */
+module.exports = Binary;
+module.exports.Binary = Binary;