解决 macOS 10.12 下 PAC 模式下Safari 或 Twitter 客户端 tweetbot客户端不能FQ的问题

解决 macOS 10.12 下 PAC 模式下Safari 或 Twitter 客户端 tweetbot客户端不能FQ的问题
https://github.com/qiuyuzhou/ShadowsocksX-NG/issues/30
PS 手头没有 macOS 10.12 的机器，麻烦有的请帮忙测试一下
或者可以从 https://github.com/qinyuhang/ShadowsocksX-NG/tree/webserver 下载去
Xcode build 一下

Pods/GCDWebServer/GCDWebServer/Requests/GCDWebServerMultiPartFormRequest.h

@@ -0,0 +1,132 @@
+/*
+ Copyright (c) 2012-2015, Pierre-Olivier Latour
+ All rights reserved.
+ 
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ * The name of Pierre-Olivier Latour may not be used to endorse
+ or promote products derived from this software without specific
+ prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL PIERRE-OLIVIER LATOUR BE LIABLE FOR ANY
+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#import "GCDWebServerRequest.h"
+
+/**
+ *  The GCDWebServerMultiPart class is an abstract class that wraps the content
+ *  of a part.
+ */
+@interface GCDWebServerMultiPart : NSObject
+
+/**
+ *  Returns the control name retrieved from the part headers.
+ */
+@property(nonatomic, readonly) NSString* controlName;
+
+/**
+ *  Returns the content type retrieved from the part headers or "text/plain"
+ *  if not available (per HTTP specifications).
+ */
+@property(nonatomic, readonly) NSString* contentType;
+
+/**
+ *  Returns the MIME type component of the content type for the part.
+ */
+@property(nonatomic, readonly) NSString* mimeType;
+
+@end
+
+/**
+ *  The GCDWebServerMultiPartArgument subclass of GCDWebServerMultiPart wraps
+ *  the content of a part as data in memory.
+ */
+@interface GCDWebServerMultiPartArgument : GCDWebServerMultiPart
+
+/**
+ *  Returns the data for the part.
+ */
+@property(nonatomic, readonly) NSData* data;
+
+/**
+ *  Returns the data for the part interpreted as text. If the content
+ *  type of the part is not a text one, or if an error occurs, nil is returned.
+ *
+ *  The text encoding used to interpret the data is extracted from the
+ *  "Content-Type" header or defaults to UTF-8.
+ */
+@property(nonatomic, readonly) NSString* string;
+
+@end
+
+/**
+ *  The GCDWebServerMultiPartFile subclass of GCDWebServerMultiPart wraps
+ *  the content of a part as a file on disk.
+ */
+@interface GCDWebServerMultiPartFile : GCDWebServerMultiPart
+
+/**
+ *  Returns the file name retrieved from the part headers.
+ */
+@property(nonatomic, readonly) NSString* fileName;
+
+/**
+ *  Returns the path to the temporary file containing the part data.
+ *
+ *  @warning This temporary file will be automatically deleted when the
+ *  GCDWebServerMultiPartFile is deallocated. If you want to preserve this file,
+ *  you must move it to a different location beforehand.
+ */
+@property(nonatomic, readonly) NSString* temporaryPath;
+
+@end
+
+/**
+ *  The GCDWebServerMultiPartFormRequest subclass of GCDWebServerRequest
+ *  parses the body of the HTTP request as a multipart encoded form.
+ */
+@interface GCDWebServerMultiPartFormRequest : GCDWebServerRequest
+
+/**
+ *  Returns the argument parts from the multipart encoded form as
+ *  name / GCDWebServerMultiPartArgument pairs.
+ */
+@property(nonatomic, readonly) NSArray* arguments;
+
+/**
+ *  Returns the files parts from the multipart encoded form as
+ *  name / GCDWebServerMultiPartFile pairs.
+ */
+@property(nonatomic, readonly) NSArray* files;
+
+/**
+ *  Returns the MIME type for multipart encoded forms
+ *  i.e. "multipart/form-data".
+ */
++ (NSString*)mimeType;
+
+/**
+ *  Returns the first argument for a given control name or nil if not found.
+ */
+- (GCDWebServerMultiPartArgument*)firstArgumentForControlName:(NSString*)name;
+
+/**
+ *  Returns the first file for a given control name or nil if not found.
+ */
+- (GCDWebServerMultiPartFile*)firstFileForControlName:(NSString*)name;
+
+@end