4 files changed, 922 insertions, 0 deletions
diff --git a/node_modules/asn1.js/lib/asn1/base/buffer.js b/node_modules/asn1.js/lib/asn1/base/buffer.js
new file mode 100644
index 0000000..bb5bc06
--- /dev/null
+++ b/node_modules/asn1.js/lib/asn1/base/buffer.js
@@ -0,0 +1,153 @@
+'use strict';
+
+const inherits = require('inherits');
+const Reporter = require('../base/reporter').Reporter;
+const Buffer = require('safer-buffer').Buffer;
+
+function DecoderBuffer(base, options) {
+  Reporter.call(this, options);
+  if (!Buffer.isBuffer(base)) {
+    this.error('Input not Buffer');
+    return;
+  }
+
+  this.base = base;
+  this.offset = 0;
+  this.length = base.length;
+}
+inherits(DecoderBuffer, Reporter);
+exports.DecoderBuffer = DecoderBuffer;
+
+DecoderBuffer.isDecoderBuffer = function isDecoderBuffer(data) {
+  if (data instanceof DecoderBuffer) {
+    return true;
+  }
+
+  // Or accept compatible API
+  const isCompatible = typeof data === 'object' &&
+    Buffer.isBuffer(data.base) &&
+    data.constructor.name === 'DecoderBuffer' &&
+    typeof data.offset === 'number' &&
+    typeof data.length === 'number' &&
+    typeof data.save === 'function' &&
+    typeof data.restore === 'function' &&
+    typeof data.isEmpty === 'function' &&
+    typeof data.readUInt8 === 'function' &&
+    typeof data.skip === 'function' &&
+    typeof data.raw === 'function';
+
+  return isCompatible;
+};
+
+DecoderBuffer.prototype.save = function save() {
+  return { offset: this.offset, reporter: Reporter.prototype.save.call(this) };
+};
+
+DecoderBuffer.prototype.restore = function restore(save) {
+  // Return skipped data
+  const res = new DecoderBuffer(this.base);
+  res.offset = save.offset;
+  res.length = this.offset;
+
+  this.offset = save.offset;
+  Reporter.prototype.restore.call(this, save.reporter);
+
+  return res;
+};
+
+DecoderBuffer.prototype.isEmpty = function isEmpty() {
+  return this.offset === this.length;
+};
+
+DecoderBuffer.prototype.readUInt8 = function readUInt8(fail) {
+  if (this.offset + 1 <= this.length)
+    return this.base.readUInt8(this.offset++, true);
+  else
+    return this.error(fail || 'DecoderBuffer overrun');
+};
+
+DecoderBuffer.prototype.skip = function skip(bytes, fail) {
+  if (!(this.offset + bytes <= this.length))
+    return this.error(fail || 'DecoderBuffer overrun');
+
+  const res = new DecoderBuffer(this.base);
+
+  // Share reporter state
+  res._reporterState = this._reporterState;
+
+  res.offset = this.offset;
+  res.length = this.offset + bytes;
+  this.offset += bytes;
+  return res;
+};
+
+DecoderBuffer.prototype.raw = function raw(save) {
+  return this.base.slice(save ? save.offset : this.offset, this.length);
+};
+
+function EncoderBuffer(value, reporter) {
+  if (Array.isArray(value)) {
+    this.length = 0;
+    this.value = value.map(function(item) {
+      if (!EncoderBuffer.isEncoderBuffer(item))
+        item = new EncoderBuffer(item, reporter);
+      this.length += item.length;
+      return item;
+    }, this);
+  } else if (typeof value === 'number') {
+    if (!(0 <= value && value <= 0xff))
+      return reporter.error('non-byte EncoderBuffer value');
+    this.value = value;
+    this.length = 1;
+  } else if (typeof value === 'string') {
+    this.value = value;
+    this.length = Buffer.byteLength(value);
+  } else if (Buffer.isBuffer(value)) {
+    this.value = value;
+    this.length = value.length;
+  } else {
+    return reporter.error('Unsupported type: ' + typeof value);
+  }
+}
+exports.EncoderBuffer = EncoderBuffer;
+
+EncoderBuffer.isEncoderBuffer = function isEncoderBuffer(data) {
+  if (data instanceof EncoderBuffer) {
+    return true;
+  }
+
+  // Or accept compatible API
+  const isCompatible = typeof data === 'object' &&
+    data.constructor.name === 'EncoderBuffer' &&
+    typeof data.length === 'number' &&
+    typeof data.join === 'function';
+
+  return isCompatible;
+};
+
+EncoderBuffer.prototype.join = function join(out, offset) {
+  if (!out)
+    out = Buffer.alloc(this.length);
+  if (!offset)
+    offset = 0;
+
+  if (this.length === 0)
+    return out;
+
+  if (Array.isArray(this.value)) {
+    this.value.forEach(function(item) {
+      item.join(out, offset);
+      offset += item.length;
+    });
+  } else {
+    if (typeof this.value === 'number')
+      out[offset] = this.value;
+    else if (typeof this.value === 'string')
+      out.write(this.value, offset);
+    else if (Buffer.isBuffer(this.value))
+      this.value.copy(out, offset);
+    offset += this.length;
+  }
+
+  return out;
+};
diff --git a/node_modules/asn1.js/lib/asn1/base/index.js b/node_modules/asn1.js/lib/asn1/base/index.js
new file mode 100644
index 0000000..8b92f20
--- /dev/null
+++ b/node_modules/asn1.js/lib/asn1/base/index.js
@@ -0,0 +1,8 @@
+'use strict';
+
+const base = exports;
+
+base.Reporter = require('./reporter').Reporter;
+base.DecoderBuffer = require('./buffer').DecoderBuffer;
+base.EncoderBuffer = require('./buffer').EncoderBuffer;
+base.Node = require('./node');
diff --git a/node_modules/asn1.js/lib/asn1/base/node.js b/node_modules/asn1.js/lib/asn1/base/node.js
new file mode 100644
index 0000000..d676d21
--- /dev/null
+++ b/node_modules/asn1.js/lib/asn1/base/node.js
@@ -0,0 +1,638 @@
+'use strict';
+
+const Reporter = require('../base/reporter').Reporter;
+const EncoderBuffer = require('../base/buffer').EncoderBuffer;
+const DecoderBuffer = require('../base/buffer').DecoderBuffer;
+const assert = require('minimalistic-assert');
+
+// Supported tags
+const tags = [
+  'seq', 'seqof', 'set', 'setof', 'objid', 'bool',
+  'gentime', 'utctime', 'null_', 'enum', 'int', 'objDesc',
+  'bitstr', 'bmpstr', 'charstr', 'genstr', 'graphstr', 'ia5str', 'iso646str',
+  'numstr', 'octstr', 'printstr', 't61str', 'unistr', 'utf8str', 'videostr'
+];
+
+// Public methods list
+const methods = [
+  'key', 'obj', 'use', 'optional', 'explicit', 'implicit', 'def', 'choice',
+  'any', 'contains'
+].concat(tags);
+
+// Overrided methods list
+const overrided = [
+  '_peekTag', '_decodeTag', '_use',
+  '_decodeStr', '_decodeObjid', '_decodeTime',
+  '_decodeNull', '_decodeInt', '_decodeBool', '_decodeList',
+
+  '_encodeComposite', '_encodeStr', '_encodeObjid', '_encodeTime',
+  '_encodeNull', '_encodeInt', '_encodeBool'
+];
+
+function Node(enc, parent, name) {
+  const state = {};
+  this._baseState = state;
+
+  state.name = name;
+  state.enc = enc;
+
+  state.parent = parent || null;
+  state.children = null;
+
+  // State
+  state.tag = null;
+  state.args = null;
+  state.reverseArgs = null;
+  state.choice = null;
+  state.optional = false;
+  state.any = false;
+  state.obj = false;
+  state.use = null;
+  state.useDecoder = null;
+  state.key = null;
+  state['default'] = null;
+  state.explicit = null;
+  state.implicit = null;
+  state.contains = null;
+
+  // Should create new instance on each method
+  if (!state.parent) {
+    state.children = [];
+    this._wrap();
+  }
+}
+module.exports = Node;
+
+const stateProps = [
+  'enc', 'parent', 'children', 'tag', 'args', 'reverseArgs', 'choice',
+  'optional', 'any', 'obj', 'use', 'alteredUse', 'key', 'default', 'explicit',
+  'implicit', 'contains'
+];
+
+Node.prototype.clone = function clone() {
+  const state = this._baseState;
+  const cstate = {};
+  stateProps.forEach(function(prop) {
+    cstate[prop] = state[prop];
+  });
+  const res = new this.constructor(cstate.parent);
+  res._baseState = cstate;
+  return res;
+};
+
+Node.prototype._wrap = function wrap() {
+  const state = this._baseState;
+  methods.forEach(function(method) {
+    this[method] = function _wrappedMethod() {
+      const clone = new this.constructor(this);
+      state.children.push(clone);
+      return clone[method].apply(clone, arguments);
+    };
+  }, this);
+};
+
+Node.prototype._init = function init(body) {
+  const state = this._baseState;
+
+  assert(state.parent === null);
+  body.call(this);
+
+  // Filter children
+  state.children = state.children.filter(function(child) {
+    return child._baseState.parent === this;
+  }, this);
+  assert.equal(state.children.length, 1, 'Root node can have only one child');
+};
+
+Node.prototype._useArgs = function useArgs(args) {
+  const state = this._baseState;
+
+  // Filter children and args
+  const children = args.filter(function(arg) {
+    return arg instanceof this.constructor;
+  }, this);
+  args = args.filter(function(arg) {
+    return !(arg instanceof this.constructor);
+  }, this);
+
+  if (children.length !== 0) {
+    assert(state.children === null);
+    state.children = children;
+
+    // Replace parent to maintain backward link
+    children.forEach(function(child) {
+      child._baseState.parent = this;
+    }, this);
+  }
+  if (args.length !== 0) {
+    assert(state.args === null);
+    state.args = args;
+    state.reverseArgs = args.map(function(arg) {
+      if (typeof arg !== 'object' || arg.constructor !== Object)
+        return arg;
+
+      const res = {};
+      Object.keys(arg).forEach(function(key) {
+        if (key == (key | 0))
+          key |= 0;
+        const value = arg[key];
+        res[value] = key;
+      });
+      return res;
+    });
+  }
+};
+
+//
+// Overrided methods
+//
+
+overrided.forEach(function(method) {
+  Node.prototype[method] = function _overrided() {
+    const state = this._baseState;
+    throw new Error(method + ' not implemented for encoding: ' + state.enc);
+  };
+});
+
+//
+// Public methods
+//
+
+tags.forEach(function(tag) {
+  Node.prototype[tag] = function _tagMethod() {
+    const state = this._baseState;
+    const args = Array.prototype.slice.call(arguments);
+
+    assert(state.tag === null);
+    state.tag = tag;
+
+    this._useArgs(args);
+
+    return this;
+  };
+});
+
+Node.prototype.use = function use(item) {
+  assert(item);
+  const state = this._baseState;
+
+  assert(state.use === null);
+  state.use = item;
+
+  return this;
+};
+
+Node.prototype.optional = function optional() {
+  const state = this._baseState;
+
+  state.optional = true;
+
+  return this;
+};
+
+Node.prototype.def = function def(val) {
+  const state = this._baseState;
+
+  assert(state['default'] === null);
+  state['default'] = val;
+  state.optional = true;
+
+  return this;
+};
+
+Node.prototype.explicit = function explicit(num) {
+  const state = this._baseState;
+
+  assert(state.explicit === null && state.implicit === null);
+  state.explicit = num;
+
+  return this;
+};
+
+Node.prototype.implicit = function implicit(num) {
+  const state = this._baseState;
+
+  assert(state.explicit === null && state.implicit === null);
+  state.implicit = num;
+
+  return this;
+};
+
+Node.prototype.obj = function obj() {
+  const state = this._baseState;
+  const args = Array.prototype.slice.call(arguments);
+
+  state.obj = true;
+
+  if (args.length !== 0)
+    this._useArgs(args);
+
+  return this;
+};
+
+Node.prototype.key = function key(newKey) {
+  const state = this._baseState;
+
+  assert(state.key === null);
+  state.key = newKey;
+
+  return this;
+};
+
+Node.prototype.any = function any() {
+  const state = this._baseState;
+
+  state.any = true;
+
+  return this;
+};
+
+Node.prototype.choice = function choice(obj) {
+  const state = this._baseState;
+
+  assert(state.choice === null);
+  state.choice = obj;
+  this._useArgs(Object.keys(obj).map(function(key) {
+    return obj[key];
+  }));
+
+  return this;
+};
+
+Node.prototype.contains = function contains(item) {
+  const state = this._baseState;
+
+  assert(state.use === null);
+  state.contains = item;
+
+  return this;
+};
+
+//
+// Decoding
+//
+
+Node.prototype._decode = function decode(input, options) {
+  const state = this._baseState;
+
+  // Decode root node
+  if (state.parent === null)
+    return input.wrapResult(state.children[0]._decode(input, options));
+
+  let result = state['default'];
+  let present = true;
+
+  let prevKey = null;
+  if (state.key !== null)
+    prevKey = input.enterKey(state.key);
+
+  // Check if tag is there
+  if (state.optional) {
+    let tag = null;
+    if (state.explicit !== null)
+      tag = state.explicit;
+    else if (state.implicit !== null)
+      tag = state.implicit;
+    else if (state.tag !== null)
+      tag = state.tag;
+
+    if (tag === null && !state.any) {
+      // Trial and Error
+      const save = input.save();
+      try {
+        if (state.choice === null)
+          this._decodeGeneric(state.tag, input, options);
+        else
+          this._decodeChoice(input, options);
+        present = true;
+      } catch (e) {
+        present = false;
+      }
+      input.restore(save);
+    } else {
+      present = this._peekTag(input, tag, state.any);
+
+      if (input.isError(present))
+        return present;
+    }
+  }
+
+  // Push object on stack
+  let prevObj;
+  if (state.obj && present)
+    prevObj = input.enterObject();
+
+  if (present) {
+    // Unwrap explicit values
+    if (state.explicit !== null) {
+      const explicit = this._decodeTag(input, state.explicit);
+      if (input.isError(explicit))
+        return explicit;
+      input = explicit;
+    }
+
+    const start = input.offset;
+
+    // Unwrap implicit and normal values
+    if (state.use === null && state.choice === null) {
+      let save;
+      if (state.any)
+        save = input.save();
+      const body = this._decodeTag(
+        input,
+        state.implicit !== null ? state.implicit : state.tag,
+        state.any
+      );
+      if (input.isError(body))
+        return body;
+
+      if (state.any)
+        result = input.raw(save);
+      else
+        input = body;
+    }
+
+    if (options && options.track && state.tag !== null)
+      options.track(input.path(), start, input.length, 'tagged');
+
+    if (options && options.track && state.tag !== null)
+      options.track(input.path(), input.offset, input.length, 'content');
+
+    // Select proper method for tag
+    if (state.any) {
+      // no-op
+    } else if (state.choice === null) {
+      result = this._decodeGeneric(state.tag, input, options);
+    } else {
+      result = this._decodeChoice(input, options);
+    }
+
+    if (input.isError(result))
+      return result;
+
+    // Decode children
+    if (!state.any && state.choice === null && state.children !== null) {
+      state.children.forEach(function decodeChildren(child) {
+        // NOTE: We are ignoring errors here, to let parser continue with other
+        // parts of encoded data
+        child._decode(input, options);
+      });
+    }
+
+    // Decode contained/encoded by schema, only in bit or octet strings
+    if (state.contains && (state.tag === 'octstr' || state.tag === 'bitstr')) {
+      const data = new DecoderBuffer(result);
+      result = this._getUse(state.contains, input._reporterState.obj)
+        ._decode(data, options);
+    }
+  }
+
+  // Pop object
+  if (state.obj && present)
+    result = input.leaveObject(prevObj);
+
+  // Set key
+  if (state.key !== null && (result !== null || present === true))
+    input.leaveKey(prevKey, state.key, result);
+  else if (prevKey !== null)
+    input.exitKey(prevKey);
+
+  return result;
+};
+
+Node.prototype._decodeGeneric = function decodeGeneric(tag, input, options) {
+  const state = this._baseState;
+
+  if (tag === 'seq' || tag === 'set')
+    return null;
+  if (tag === 'seqof' || tag === 'setof')
+    return this._decodeList(input, tag, state.args[0], options);
+  else if (/str$/.test(tag))
+    return this._decodeStr(input, tag, options);
+  else if (tag === 'objid' && state.args)
+    return this._decodeObjid(input, state.args[0], state.args[1], options);
+  else if (tag === 'objid')
+    return this._decodeObjid(input, null, null, options);
+  else if (tag === 'gentime' || tag === 'utctime')
+    return this._decodeTime(input, tag, options);
+  else if (tag === 'null_')
+    return this._decodeNull(input, options);
+  else if (tag === 'bool')
+    return this._decodeBool(input, options);
+  else if (tag === 'objDesc')
+    return this._decodeStr(input, tag, options);
+  else if (tag === 'int' || tag === 'enum')
+    return this._decodeInt(input, state.args && state.args[0], options);
+
+  if (state.use !== null) {
+    return this._getUse(state.use, input._reporterState.obj)
+      ._decode(input, options);
+  } else {
+    return input.error('unknown tag: ' + tag);
+  }
+};
+
+Node.prototype._getUse = function _getUse(entity, obj) {
+
+  const state = this._baseState;
+  // Create altered use decoder if implicit is set
+  state.useDecoder = this._use(entity, obj);
+  assert(state.useDecoder._baseState.parent === null);
+  state.useDecoder = state.useDecoder._baseState.children[0];
+  if (state.implicit !== state.useDecoder._baseState.implicit) {
+    state.useDecoder = state.useDecoder.clone();
+    state.useDecoder._baseState.implicit = state.implicit;
+  }
+  return state.useDecoder;
+};
+
+Node.prototype._decodeChoice = function decodeChoice(input, options) {
+  const state = this._baseState;
+  let result = null;
+  let match = false;
+
+  Object.keys(state.choice).some(function(key) {
+    const save = input.save();
+    const node = state.choice[key];
+    try {
+      const value = node._decode(input, options);
+      if (input.isError(value))
+        return false;
+
+      result = { type: key, value: value };
+      match = true;
+    } catch (e) {
+      input.restore(save);
+      return false;
+    }
+    return true;
+  }, this);
+
+  if (!match)
+    return input.error('Choice not matched');
+
+  return result;
+};
+
+//
+// Encoding
+//
+
+Node.prototype._createEncoderBuffer = function createEncoderBuffer(data) {
+  return new EncoderBuffer(data, this.reporter);
+};
+
+Node.prototype._encode = function encode(data, reporter, parent) {
+  const state = this._baseState;
+  if (state['default'] !== null && state['default'] === data)
+    return;
+
+  const result = this._encodeValue(data, reporter, parent);
+  if (result === undefined)
+    return;
+
+  if (this._skipDefault(result, reporter, parent))
+    return;
+
+  return result;
+};
+
+Node.prototype._encodeValue = function encode(data, reporter, parent) {
+  const state = this._baseState;
+
+  // Decode root node
+  if (state.parent === null)
+    return state.children[0]._encode(data, reporter || new Reporter());
+
+  let result = null;
+
+  // Set reporter to share it with a child class
+  this.reporter = reporter;
+
+  // Check if data is there
+  if (state.optional && data === undefined) {
+    if (state['default'] !== null)
+      data = state['default'];
+    else
+      return;
+  }
+
+  // Encode children first
+  let content = null;
+  let primitive = false;
+  if (state.any) {
+    // Anything that was given is translated to buffer
+    result = this._createEncoderBuffer(data);
+  } else if (state.choice) {
+    result = this._encodeChoice(data, reporter);
+  } else if (state.contains) {
+    content = this._getUse(state.contains, parent)._encode(data, reporter);
+    primitive = true;
+  } else if (state.children) {
+    content = state.children.map(function(child) {
+      if (child._baseState.tag === 'null_')
+        return child._encode(null, reporter, data);
+
+      if (child._baseState.key === null)
+        return reporter.error('Child should have a key');
+      const prevKey = reporter.enterKey(child._baseState.key);
+
+      if (typeof data !== 'object')
+        return reporter.error('Child expected, but input is not object');
+
+      const res = child._encode(data[child._baseState.key], reporter, data);
+      reporter.leaveKey(prevKey);
+
+      return res;
+    }, this).filter(function(child) {
+      return child;
+    });
+    content = this._createEncoderBuffer(content);
+  } else {
+    if (state.tag === 'seqof' || state.tag === 'setof') {
+      // TODO(indutny): this should be thrown on DSL level
+      if (!(state.args && state.args.length === 1))
+        return reporter.error('Too many args for : ' + state.tag);
+
+      if (!Array.isArray(data))
+        return reporter.error('seqof/setof, but data is not Array');
+
+      const child = this.clone();
+      child._baseState.implicit = null;
+      content = this._createEncoderBuffer(data.map(function(item) {
+        const state = this._baseState;
+
+        return this._getUse(state.args[0], data)._encode(item, reporter);
+      }, child));
+    } else if (state.use !== null) {
+      result = this._getUse(state.use, parent)._encode(data, reporter);
+    } else {
+      content = this._encodePrimitive(state.tag, data);
+      primitive = true;
+    }
+  }
+
+  // Encode data itself
+  if (!state.any && state.choice === null) {
+    const tag = state.implicit !== null ? state.implicit : state.tag;
+    const cls = state.implicit === null ? 'universal' : 'context';
+
+    if (tag === null) {
+      if (state.use === null)
+        reporter.error('Tag could be omitted only for .use()');
+    } else {
+      if (state.use === null)
+        result = this._encodeComposite(tag, primitive, cls, content);
+    }
+  }
+
+  // Wrap in explicit
+  if (state.explicit !== null)
+    result = this._encodeComposite(state.explicit, false, 'context', result);
+
+  return result;
+};
+
+Node.prototype._encodeChoice = function encodeChoice(data, reporter) {
+  const state = this._baseState;
+
+  const node = state.choice[data.type];
+  if (!node) {
+    assert(
+      false,
+      data.type + ' not found in ' +
+            JSON.stringify(Object.keys(state.choice)));
+  }
+  return node._encode(data.value, reporter);
+};
+
+Node.prototype._encodePrimitive = function encodePrimitive(tag, data) {
+  const state = this._baseState;
+
+  if (/str$/.test(tag))
+    return this._encodeStr(data, tag);
+  else if (tag === 'objid' && state.args)
+    return this._encodeObjid(data, state.reverseArgs[0], state.args[1]);
+  else if (tag === 'objid')
+    return this._encodeObjid(data, null, null);
+  else if (tag === 'gentime' || tag === 'utctime')
+    return this._encodeTime(data, tag);
+  else if (tag === 'null_')
+    return this._encodeNull();
+  else if (tag === 'int' || tag === 'enum')
+    return this._encodeInt(data, state.args && state.reverseArgs[0]);
+  else if (tag === 'bool')
+    return this._encodeBool(data);
+  else if (tag === 'objDesc')
+    return this._encodeStr(data, tag);
+  else
+    throw new Error('Unsupported tag: ' + tag);
+};
+
+Node.prototype._isNumstr = function isNumstr(str) {
+  return /^[0-9 ]*$/.test(str);
+};
+
+Node.prototype._isPrintstr = function isPrintstr(str) {
+  return /^[A-Za-z0-9 '()+,-./:=?]*$/.test(str);
+};
diff --git a/node_modules/asn1.js/lib/asn1/base/reporter.js b/node_modules/asn1.js/lib/asn1/base/reporter.js
new file mode 100644
index 0000000..d05fe12
--- /dev/null
+++ b/node_modules/asn1.js/lib/asn1/base/reporter.js
@@ -0,0 +1,123 @@
+'use strict';
+
+const inherits = require('inherits');
+
+function Reporter(options) {
+  this._reporterState = {
+    obj: null,
+    path: [],
+    options: options || {},
+    errors: []
+  };
+}
+exports.Reporter = Reporter;
+
+Reporter.prototype.isError = function isError(obj) {
+  return obj instanceof ReporterError;
+};
+
+Reporter.prototype.save = function save() {
+  const state = this._reporterState;
+
+  return { obj: state.obj, pathLen: state.path.length };
+};
+
+Reporter.prototype.restore = function restore(data) {
+  const state = this._reporterState;
+
+  state.obj = data.obj;
+  state.path = state.path.slice(0, data.pathLen);
+};
+
+Reporter.prototype.enterKey = function enterKey(key) {
+  return this._reporterState.path.push(key);
+};
+
+Reporter.prototype.exitKey = function exitKey(index) {
+  const state = this._reporterState;
+
+  state.path = state.path.slice(0, index - 1);
+};
+
+Reporter.prototype.leaveKey = function leaveKey(index, key, value) {
+  const state = this._reporterState;
+
+  this.exitKey(index);
+  if (state.obj !== null)
+    state.obj[key] = value;
+};
+
+Reporter.prototype.path = function path() {
+  return this._reporterState.path.join('/');
+};
+
+Reporter.prototype.enterObject = function enterObject() {
+  const state = this._reporterState;
+
+  const prev = state.obj;
+  state.obj = {};
+  return prev;
+};
+
+Reporter.prototype.leaveObject = function leaveObject(prev) {
+  const state = this._reporterState;
+
+  const now = state.obj;
+  state.obj = prev;
+  return now;
+};
+
+Reporter.prototype.error = function error(msg) {
+  let err;
+  const state = this._reporterState;
+
+  const inherited = msg instanceof ReporterError;
+  if (inherited) {
+    err = msg;
+  } else {
+    err = new ReporterError(state.path.map(function(elem) {
+      return '[' + JSON.stringify(elem) + ']';
+    }).join(''), msg.message || msg, msg.stack);
+  }
+
+  if (!state.options.partial)
+    throw err;
+
+  if (!inherited)
+    state.errors.push(err);
+
+  return err;
+};
+
+Reporter.prototype.wrapResult = function wrapResult(result) {
+  const state = this._reporterState;
+  if (!state.options.partial)
+    return result;
+
+  return {
+    result: this.isError(result) ? null : result,
+    errors: state.errors
+  };
+};
+
+function ReporterError(path, msg) {
+  this.path = path;
+  this.rethrow(msg);
+}
+inherits(ReporterError, Error);
+
+ReporterError.prototype.rethrow = function rethrow(msg) {
+  this.message = msg + ' at: ' + (this.path || '(shallow)');
+  if (Error.captureStackTrace)
+    Error.captureStackTrace(this, ReporterError);
+
+  if (!this.stack) {
+    try {
+      // IE only adds stack when thrown
+      throw new Error(this.message);
+    } catch (e) {
+      this.stack = e.stack;
+    }
+  }
+  return this;
+};